guarantees that the hardware fifo is flushed to the device
buffer.
+What: /sys/bus/iio/devices/iio:device*/buffer/hwfifo_timeout
+KernelVersion: 4.12
+Contact: linux-iio@vger.kernel.org
+Description:
+ A read/write property to provide capability to delay reporting of
+ samples till a timeout is reached. This allows host processors to
+ sleep, while the sensor is storing samples in its internal fifo.
+ The maximum timeout in seconds can be specified by setting
+ hwfifo_timeout.The current delay can be read by reading
+ hwfifo_timeout. A value of 0 means that there is no timeout.
+
What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_watermark
KernelVersion: 4.2
Contact: linux-iio@vger.kernel.org
Reading returns either '1' or '0'. '1' means that the
battery level supplied to sensor is below 2.25V.
This ABI is available for tsys02d, htu21, ms8607
- This ABI is available for htu21, ms8607
- "OC2REF" : OC2REF signal is used as trigger output.
- "OC3REF" : OC3REF signal is used as trigger output.
- "OC4REF" : OC4REF signal is used as trigger output.
+ Additional modes (on TRGO2 only):
+ - "OC5REF" : OC5REF signal is used as trigger output.
+ - "OC6REF" : OC6REF signal is used as trigger output.
+ - "compare_pulse_OC4REF":
+ OC4REF rising or falling edges generate pulses.
+ - "compare_pulse_OC6REF":
+ OC6REF rising or falling edges generate pulses.
+ - "compare_pulse_OC4REF_r_or_OC6REF_r":
+ OC4REF or OC6REF rising edges generate pulses.
+ - "compare_pulse_OC4REF_r_or_OC6REF_f":
+ OC4REF rising or OC6REF falling edges generate pulses.
+ - "compare_pulse_OC5REF_r_or_OC6REF_r":
+ OC5REF or OC6REF rising edges generate pulses.
+ - "compare_pulse_OC5REF_r_or_OC6REF_f":
+ OC5REF rising or OC6REF falling edges generate pulses.
+
+ +-----------+ +-------------+ +---------+
+ | Prescaler +-> | Counter | +-> | Master | TRGO(2)
+ +-----------+ +--+--------+-+ |-> | Control +-->
+ | | || +---------+
+ +--v--------+-+ OCxREF || +---------+
+ | Chx compare +----------> | Output | ChX
+ +-----------+-+ | | Control +-->
+ . | | +---------+
+ . | | .
+ +-----------v-+ OC6REF | .
+ | Ch6 compare +---------+>
+ +-------------+
+
+ Example with: "compare_pulse_OC4REF_r_or_OC6REF_r":
+
+ X
+ X X
+ X . . X
+ X . . X
+ X . . X
+ count X . . . . X
+ . . . .
+ . . . .
+ +---------------+
+ OC4REF | . . |
+ +-+ . . +-+
+ . +---+ .
+ OC6REF . | | .
+ +-------+ +-------+
+ +-+ +-+
+ TRGO2 | | | |
+ +-+ +---+ +---------+
What: /sys/bus/iio/devices/triggerX/master_mode
KernelVersion: 4.11
Required properties:
- compatible: depending on the SoC this should be one of:
+ - "amlogic,meson8-saradc" for Meson8
+ - "amlogic,meson8b-saradc" for Meson8b
- "amlogic,meson-gxbb-saradc" for GXBB
- "amlogic,meson-gxl-saradc" for GXL
- "amlogic,meson-gxm-saradc" for GXM
- clocks: References to all the clocks specified in the clock-names
property as specified in
Documentation/devicetree/bindings/clock/clock-bindings.txt.
-- clock-names: Shall contain "fck" and "if". The "fck" is the GyroADC block
- clock, the "if" is the interface clock.
+- clock-names: Shall contain "fck". The "fck" is the GyroADC block clock.
- power-domains: Must contain a reference to the PM domain, if available.
- #address-cells: Should be <1> (setting for the subnodes) for all ADCs
except for "fujitsu,mb88101a". Should be <0> (setting for
adc@e6e54000 {
compatible = "renesas,r8a7791-gyroadc", "renesas,rcar-gyroadc";
reg = <0 0xe6e54000 0 64>;
- clocks = <&mstp9_clks R8A7791_CLK_GYROADC>, <&clk_65m>;
- clock-names = "fck", "if";
+ clocks = <&mstp9_clks R8A7791_CLK_GYROADC>;
+ clock-names = "fck";
power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
pinctrl-0 = <&adc_pins>;
--- /dev/null
+* Texas Instruments' ADC084S021
+
+Required properties:
+ - compatible : Must be "ti,adc084s021"
+ - reg : SPI chip select number for the device
+ - vref-supply : The regulator supply for ADC reference voltage
+ - spi-cpol : Per spi-bus bindings
+ - spi-cpha : Per spi-bus bindings
+ - spi-max-frequency : Per spi-bus bindings
+
+Example:
+adc@0 {
+ compatible = "ti,adc084s021";
+ reg = <0>;
+ vref-supply = <&adc_vref>;
+ spi-cpol;
+ spi-cpha;
+ spi-max-frequency = <16000000>;
+};
--- /dev/null
+* Texas Instruments' ADC108S102 and ADC128S102 ADC chip
+
+Required properties:
+ - compatible: Should be "ti,adc108s102"
+ - reg: spi chip select number for the device
+ - vref-supply: The regulator supply for ADC reference voltage
+
+Recommended properties:
+ - spi-max-frequency: Definition as per
+ Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Example:
+adc@0 {
+ compatible = "ti,adc108s102";
+ reg = <0>;
+ vref-supply = <&vdd_supply>;
+ spi-max-frequency = <1000000>;
+};
infineon,slb9635tt Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz)
infineon,slb9645tt Infineon SLB9645 I2C TPM (new protocol, max 400khz)
isil,isl29028 Intersil ISL29028 Ambient Light and Proximity Sensor
+isil,isl29030 Intersil ISL29030 Ambient Light and Proximity Sensor
maxim,ds1050 5 Bit Programmable, Pulse-Width Modulator
maxim,max1237 Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
maxim,max6625 9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface
* BMA250: 7-bit I2C slave address 0x18 or 0x19
*/
+#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
enum chip_ids {
BMA180,
BMA250,
+ BMA250E,
};
struct bma180_data;
u8 power_reg, power_mask, lowpower_val;
u8 int_enable_reg, int_enable_mask;
u8 softreset_reg;
+ u8 chip_id;
int (*chip_config)(struct bma180_data *data);
void (*chip_disable)(struct bma180_data *data);
#define BMA250_INT1_DATA_MASK BIT(0)
#define BMA250_INT_RESET_MASK BIT(7) /* Reset pending interrupts */
+#define BMA250E_CHIP_ID 0xf9
+
struct bma180_data {
struct i2c_client *client;
struct iio_trigger *trig;
if (ret < 0)
return ret;
- if (ret != BMA180_ID_REG_VAL)
+ if (ret != data->part_info->chip_id)
return -ENODEV;
ret = bma180_soft_reset(data);
BMA180_TCO_Z, BMA180_MODE_CONFIG, BMA180_LOW_POWER,
BMA180_CTRL_REG3, BMA180_NEW_DATA_INT,
BMA180_RESET,
+ BMA180_CHIP_ID,
bma180_chip_config,
bma180_chip_disable,
},
BMA250_POWER_REG, BMA250_LOWPOWER_MASK, 1,
BMA250_INT_ENABLE_REG, BMA250_DATA_INTEN_MASK,
BMA250_RESET_REG,
+ BMA180_CHIP_ID,
+ bma250_chip_config,
+ bma250_chip_disable,
+ },
+ [BMA250E] = {
+ bma250_channels, ARRAY_SIZE(bma250_channels),
+ bma250_scale_table, ARRAY_SIZE(bma250_scale_table),
+ bma250_bw_table, ARRAY_SIZE(bma250_bw_table),
+ BMA250_INT_RESET_REG, BMA250_INT_RESET_MASK,
+ BMA250_POWER_REG, BMA250_SUSPEND_MASK,
+ BMA250_BW_REG, BMA250_BW_MASK,
+ BMA250_RANGE_REG, BMA250_RANGE_MASK,
+ BMA250_POWER_REG, BMA250_LOWPOWER_MASK, 1,
+ BMA250_INT_ENABLE_REG, BMA250_DATA_INTEN_MASK,
+ BMA250_RESET_REG,
+ BMA250E_CHIP_ID,
bma250_chip_config,
bma250_chip_disable,
},
static int bma180_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
+ struct device *dev = &client->dev;
+ const struct acpi_device_id *acpi_id;
struct bma180_data *data;
struct iio_dev *indio_dev;
enum chip_ids chip;
data = iio_priv(indio_dev);
i2c_set_clientdata(client, indio_dev);
data->client = client;
- if (client->dev.of_node)
+ if (dev->of_node) {
chip = (enum chip_ids)of_device_get_match_data(&client->dev);
- else
+ } else if (id) {
chip = id->driver_data;
+ } else {
+ acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
+ if (!acpi_id)
+ return -ENODEV;
+
+ chip = acpi_id->driver_data;
+ }
data->part_info = &bma180_part_info[chip];
ret = data->part_info->chip_config(data);
#define BMA180_PM_OPS NULL
#endif
+static const struct acpi_device_id bma180_acpi_match[] = {
+ { "BMA250E", BMA250E },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, bma180_acpi_match);
+
static struct i2c_device_id bma180_ids[] = {
{ "bma180", BMA180 },
{ "bma250", BMA250 },
+ { "bma250e", BMA250E },
{ }
};
static struct i2c_driver bma180_driver = {
.driver = {
.name = "bma180",
+ .acpi_match_table = ACPI_PTR(bma180_acpi_match),
.pm = BMA180_PM_OPS,
.of_match_table = bma180_of_match,
},
static int hid_accel_3d_probe(struct platform_device *pdev)
{
int ret = 0;
- static const char *name;
+ const char *name;
struct iio_dev *indio_dev;
struct accel_3d_state *accel_state;
const struct iio_chan_spec *channel_spec;
int st_accel_common_probe(struct iio_dev *indio_dev)
{
struct st_sensor_data *adata = iio_priv(indio_dev);
+ struct st_sensors_platform_data *pdata =
+ (struct st_sensors_platform_data *)adata->dev->platform_data;
int irq = adata->get_irq_data_ready(indio_dev);
int err;
&adata->sensor_settings->fs.fs_avl[0];
adata->odr = adata->sensor_settings->odr.odr_avl[0].hz;
- if (!adata->dev->platform_data)
- adata->dev->platform_data =
- (struct st_sensors_platform_data *)&default_accel_pdata;
+ if (!pdata)
+ pdata = (struct st_sensors_platform_data *)&default_accel_pdata;
err = st_sensors_init_sensor(indio_dev, adata->dev->platform_data);
if (err < 0)
This driver can also be built as a module. If so, the module will be
called ti-adc0832.
+config TI_ADC084S021
+ tristate "Texas Instruments ADC084S021"
+ depends on SPI
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ help
+ If you say yes here you get support for Texas Instruments ADC084S021
+ chips.
+
+ This driver can also be built as a module. If so, the module will be
+ called ti-adc084s021.
+
config TI_ADC12138
tristate "Texas Instruments ADC12130/ADC12132/ADC12138"
depends on SPI
This driver can also be built as a module. If so, the module will be
called ti-adc12138.
+config TI_ADC108S102
+ tristate "Texas Instruments ADC108S102 and ADC128S102 driver"
+ depends on SPI
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ help
+ Say yes here to build support for Texas Instruments ADC108S102 and
+ ADC128S102 ADC.
+
+ To compile this driver as a module, choose M here: the module will
+ be called ti-adc108s102.
+
config TI_ADC128S052
tristate "Texas Instruments ADC128S052/ADC122S021/ADC124S021"
depends on SPI
obj-$(CONFIG_STM32_ADC) += stm32-adc.o
obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o
obj-$(CONFIG_TI_ADC0832) += ti-adc0832.o
+obj-$(CONFIG_TI_ADC084S021) += ti-adc084s021.o
obj-$(CONFIG_TI_ADC12138) += ti-adc12138.o
+obj-$(CONFIG_TI_ADC108S102) += ti-adc108s102.o
obj-$(CONFIG_TI_ADC128S052) += ti-adc128s052.o
obj-$(CONFIG_TI_ADC161S626) += ti-adc161s626.o
obj-$(CONFIG_TI_ADS1015) += ti-ads1015.o
return spi_write(priv->spi, priv->reg_buffer, 3);
}
+static int hi8435_read_raw(struct iio_dev *idev,
+ const struct iio_chan_spec *chan,
+ int *val, int *val2, long mask)
+{
+ struct hi8435_priv *priv = iio_priv(idev);
+ u32 tmp;
+ int ret;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ ret = hi8435_readl(priv, HI8435_SO31_0_REG, &tmp);
+ if (ret < 0)
+ return ret;
+ *val = !!(tmp & BIT(chan->channel));
+ return IIO_VAL_INT;
+ default:
+ return -EINVAL;
+ }
+}
+
static int hi8435_read_event_config(struct iio_dev *idev,
const struct iio_chan_spec *chan,
enum iio_event_type type,
enum iio_event_direction dir, int state)
{
struct hi8435_priv *priv = iio_priv(idev);
+ int ret;
+ u32 tmp;
+
+ if (state) {
+ ret = hi8435_readl(priv, HI8435_SO31_0_REG, &tmp);
+ if (ret < 0)
+ return ret;
+ if (tmp & BIT(chan->channel))
+ priv->event_prev_val |= BIT(chan->channel);
+ else
+ priv->event_prev_val &= ~BIT(chan->channel);
- priv->event_scan_mask &= ~BIT(chan->channel);
- if (state)
priv->event_scan_mask |= BIT(chan->channel);
+ } else
+ priv->event_scan_mask &= ~BIT(chan->channel);
return 0;
}
static const struct iio_chan_spec_ext_info hi8435_ext_info[] = {
IIO_ENUM("sensing_mode", IIO_SEPARATE, &hi8435_sensing_mode),
+ IIO_ENUM_AVAILABLE("sensing_mode", &hi8435_sensing_mode),
{},
};
.type = IIO_VOLTAGE, \
.indexed = 1, \
.channel = num, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
.event_spec = hi8435_events, \
.num_event_specs = ARRAY_SIZE(hi8435_events), \
.ext_info = hi8435_ext_info, \
static const struct iio_info hi8435_info = {
.driver_module = THIS_MODULE,
+ .read_raw = hi8435_read_raw,
.read_event_config = &hi8435_read_event_config,
.write_event_config = hi8435_write_event_config,
.read_event_value = &hi8435_read_event_value,
priv->spi = spi;
reset_gpio = devm_gpiod_get(&spi->dev, NULL, GPIOD_OUT_LOW);
- if (IS_ERR(reset_gpio)) {
- /* chip s/w reset if h/w reset failed */
+ if (!IS_ERR(reset_gpio)) {
+ /* need >=100ns low pulse to reset chip */
+ gpiod_set_raw_value_cansleep(reset_gpio, 0);
+ udelay(1);
+ gpiod_set_raw_value_cansleep(reset_gpio, 1);
+ } else {
+ /* s/w reset chip if h/w reset is not available */
hi8435_writeb(priv, HI8435_CTRL_REG, HI8435_CTRL_SRST);
hi8435_writeb(priv, HI8435_CTRL_REG, 0);
- } else {
- udelay(5);
- gpiod_set_value(reset_gpio, 1);
}
spi_set_drvdata(spi, idev);
#define INA2XX_CURRENT 0x04 /* readonly */
#define INA2XX_CALIBRATION 0x05
-#define INA226_ALERT_MASK GENMASK(2, 1)
-#define INA266_CVRF BIT(3)
+#define INA226_MASK_ENABLE 0x06
+#define INA226_CVRF BIT(3)
#define INA2XX_MAX_REGISTERS 8
.address = (_address), \
.indexed = 1, \
.channel = (_index), \
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) \
- | BIT(IIO_CHAN_INFO_SCALE), \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+ BIT(IIO_CHAN_INFO_SCALE), \
.info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \
BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), \
.scan_index = (_index), \
*/
if (!chip->allow_async_readout)
do {
- ret = regmap_read(chip->regmap, INA226_ALERT_MASK,
+ ret = regmap_read(chip->regmap, INA226_MASK_ENABLE,
&alert);
if (ret < 0)
return ret;
- alert &= INA266_CVRF;
+ alert &= INA226_CVRF;
} while (!alert);
/*
};
struct meson_sar_adc_data {
+ bool has_bl30_integration;
unsigned int resolution;
const char *name;
};
mutex_lock(&indio_dev->mlock);
- /* prevent BL30 from using the SAR ADC while we are using it */
- regmap_update_bits(priv->regmap, MESON_SAR_ADC_DELAY,
- MESON_SAR_ADC_DELAY_KERNEL_BUSY,
- MESON_SAR_ADC_DELAY_KERNEL_BUSY);
-
- /* wait until BL30 releases it's lock (so we can use the SAR ADC) */
- do {
- udelay(1);
- regmap_read(priv->regmap, MESON_SAR_ADC_DELAY, &val);
- } while (val & MESON_SAR_ADC_DELAY_BL30_BUSY && timeout--);
-
- if (timeout < 0)
- return -ETIMEDOUT;
+ if (priv->data->has_bl30_integration) {
+ /* prevent BL30 from using the SAR ADC while we are using it */
+ regmap_update_bits(priv->regmap, MESON_SAR_ADC_DELAY,
+ MESON_SAR_ADC_DELAY_KERNEL_BUSY,
+ MESON_SAR_ADC_DELAY_KERNEL_BUSY);
+
+ /*
+ * wait until BL30 releases it's lock (so we can use the SAR
+ * ADC)
+ */
+ do {
+ udelay(1);
+ regmap_read(priv->regmap, MESON_SAR_ADC_DELAY, &val);
+ } while (val & MESON_SAR_ADC_DELAY_BL30_BUSY && timeout--);
+
+ if (timeout < 0)
+ return -ETIMEDOUT;
+ }
return 0;
}
{
struct meson_sar_adc_priv *priv = iio_priv(indio_dev);
- /* allow BL30 to use the SAR ADC again */
- regmap_update_bits(priv->regmap, MESON_SAR_ADC_DELAY,
- MESON_SAR_ADC_DELAY_KERNEL_BUSY, 0);
+ if (priv->data->has_bl30_integration)
+ /* allow BL30 to use the SAR ADC again */
+ regmap_update_bits(priv->regmap, MESON_SAR_ADC_DELAY,
+ MESON_SAR_ADC_DELAY_KERNEL_BUSY, 0);
mutex_unlock(&indio_dev->mlock);
}
*/
meson_sar_adc_set_chan7_mux(indio_dev, CHAN7_MUX_CH7_INPUT);
- /*
- * leave sampling delay and the input clocks as configured by BL30 to
- * make sure BL30 gets the values it expects when reading the
- * temperature sensor.
- */
- regmap_read(priv->regmap, MESON_SAR_ADC_REG3, ®val);
- if (regval & MESON_SAR_ADC_REG3_BL30_INITIALIZED)
- return 0;
+ if (priv->data->has_bl30_integration) {
+ /*
+ * leave sampling delay and the input clocks as configured by
+ * BL30 to make sure BL30 gets the values it expects when
+ * reading the temperature sensor.
+ */
+ regmap_read(priv->regmap, MESON_SAR_ADC_REG3, ®val);
+ if (regval & MESON_SAR_ADC_REG3_BL30_INITIALIZED)
+ return 0;
+ }
meson_sar_adc_stop_sample_engine(indio_dev);
.driver_module = THIS_MODULE,
};
-struct meson_sar_adc_data meson_sar_adc_gxbb_data = {
+static const struct meson_sar_adc_data meson_sar_adc_meson8_data = {
+ .has_bl30_integration = false,
+ .resolution = 10,
+ .name = "meson-meson8-saradc",
+};
+
+static const struct meson_sar_adc_data meson_sar_adc_meson8b_data = {
+ .has_bl30_integration = false,
+ .resolution = 10,
+ .name = "meson-meson8b-saradc",
+};
+
+static const struct meson_sar_adc_data meson_sar_adc_gxbb_data = {
+ .has_bl30_integration = true,
.resolution = 10,
.name = "meson-gxbb-saradc",
};
-struct meson_sar_adc_data meson_sar_adc_gxl_data = {
+static const struct meson_sar_adc_data meson_sar_adc_gxl_data = {
+ .has_bl30_integration = true,
.resolution = 12,
.name = "meson-gxl-saradc",
};
-struct meson_sar_adc_data meson_sar_adc_gxm_data = {
+static const struct meson_sar_adc_data meson_sar_adc_gxm_data = {
+ .has_bl30_integration = true,
.resolution = 12,
.name = "meson-gxm-saradc",
};
static const struct of_device_id meson_sar_adc_of_match[] = {
+ {
+ .compatible = "amlogic,meson8-saradc",
+ .data = &meson_sar_adc_meson8_data,
+ },
+ {
+ .compatible = "amlogic,meson8b-saradc",
+ .data = &meson_sar_adc_meson8b_data,
+ },
{
.compatible = "amlogic,meson-gxbb-saradc",
.data = &meson_sar_adc_gxbb_data,
struct rcar_gyroadc {
struct device *dev;
void __iomem *regs;
- struct clk *iclk;
+ struct clk *clk;
struct regulator *vref[8];
unsigned int num_channels;
enum rcar_gyroadc_model model;
static void rcar_gyroadc_hw_init(struct rcar_gyroadc *priv)
{
- const unsigned long clk_mhz = clk_get_rate(priv->iclk) / 1000000;
+ const unsigned long clk_mhz = clk_get_rate(priv->clk) / 1000000;
const unsigned long clk_mul =
(priv->mode == RCAR_GYROADC_MODE_SELECT_1_MB88101A) ? 10 : 5;
unsigned long clk_len = clk_mhz * clk_mul;
if (IS_ERR(priv->regs))
return PTR_ERR(priv->regs);
- priv->iclk = devm_clk_get(dev, "if");
- if (IS_ERR(priv->iclk)) {
- ret = PTR_ERR(priv->iclk);
+ priv->clk = devm_clk_get(dev, "fck");
+ if (IS_ERR(priv->clk)) {
+ ret = PTR_ERR(priv->clk);
if (ret != -EPROBE_DEFER)
dev_err(dev, "Failed to get IF clock (ret=%i)\n", ret);
return ret;
indio_dev->info = &rcar_gyroadc_iio_info;
indio_dev->modes = INDIO_DIRECT_MODE;
- ret = clk_prepare_enable(priv->iclk);
+ ret = clk_prepare_enable(priv->clk);
if (ret) {
dev_err(dev, "Could not prepare or enable the IF clock.\n");
goto err_clk_if_enable;
pm_runtime_put_sync(dev);
pm_runtime_disable(dev);
pm_runtime_set_suspended(dev);
- clk_disable_unprepare(priv->iclk);
+ clk_disable_unprepare(priv->clk);
err_clk_if_enable:
rcar_gyroadc_deinit_supplies(indio_dev);
pm_runtime_put_sync(dev);
pm_runtime_disable(dev);
pm_runtime_set_suspended(dev);
- clk_disable_unprepare(priv->iclk);
+ clk_disable_unprepare(priv->clk);
rcar_gyroadc_deinit_supplies(indio_dev);
return 0;
--- /dev/null
+/**
+ * Copyright (C) 2017 Axis Communications AB
+ *
+ * Driver for Texas Instruments' ADC084S021 ADC chip.
+ * Datasheets can be found here:
+ * http://www.ti.com/lit/ds/symlink/adc084s021.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/err.h>
+#include <linux/spi/spi.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/regulator/consumer.h>
+
+#define ADC084S021_DRIVER_NAME "adc084s021"
+
+struct adc084s021 {
+ struct spi_device *spi;
+ struct spi_message message;
+ struct spi_transfer spi_trans;
+ struct regulator *reg;
+ struct mutex lock;
+ /*
+ * DMA (thus cache coherency maintenance) requires the
+ * transfer buffers to live in their own cache line.
+ */
+ u16 tx_buf[4] ____cacheline_aligned;
+ __be16 rx_buf[5]; /* First 16-bits are trash */
+};
+
+#define ADC084S021_VOLTAGE_CHANNEL(num) \
+ { \
+ .type = IIO_VOLTAGE, \
+ .channel = (num), \
+ .indexed = 1, \
+ .scan_index = (num), \
+ .scan_type = { \
+ .sign = 'u', \
+ .realbits = 8, \
+ .storagebits = 16, \
+ .shift = 4, \
+ .endianness = IIO_BE, \
+ }, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),\
+ }
+
+static const struct iio_chan_spec adc084s021_channels[] = {
+ ADC084S021_VOLTAGE_CHANNEL(0),
+ ADC084S021_VOLTAGE_CHANNEL(1),
+ ADC084S021_VOLTAGE_CHANNEL(2),
+ ADC084S021_VOLTAGE_CHANNEL(3),
+ IIO_CHAN_SOFT_TIMESTAMP(4),
+};
+
+/**
+ * Read an ADC channel and return its value.
+ *
+ * @adc: The ADC SPI data.
+ * @data: Buffer for converted data.
+ */
+static int adc084s021_adc_conversion(struct adc084s021 *adc, void *data)
+{
+ int n_words = (adc->spi_trans.len >> 1) - 1; /* Discard first word */
+ int ret, i = 0;
+ u16 *p = data;
+
+ /* Do the transfer */
+ ret = spi_sync(adc->spi, &adc->message);
+ if (ret < 0)
+ return ret;
+
+ for (; i < n_words; i++)
+ *(p + i) = adc->rx_buf[i + 1];
+
+ return ret;
+}
+
+static int adc084s021_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *channel, int *val,
+ int *val2, long mask)
+{
+ struct adc084s021 *adc = iio_priv(indio_dev);
+ int ret;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ ret = iio_device_claim_direct_mode(indio_dev);
+ if (ret < 0)
+ return ret;
+
+ ret = regulator_enable(adc->reg);
+ if (ret) {
+ iio_device_release_direct_mode(indio_dev);
+ return ret;
+ }
+
+ adc->tx_buf[0] = channel->channel << 3;
+ ret = adc084s021_adc_conversion(adc, val);
+ iio_device_release_direct_mode(indio_dev);
+ regulator_disable(adc->reg);
+ if (ret < 0)
+ return ret;
+
+ *val = be16_to_cpu(*val);
+ *val = (*val >> channel->scan_type.shift) & 0xff;
+
+ return IIO_VAL_INT;
+ case IIO_CHAN_INFO_SCALE:
+ ret = regulator_enable(adc->reg);
+ if (ret)
+ return ret;
+
+ ret = regulator_get_voltage(adc->reg);
+ regulator_disable(adc->reg);
+ if (ret < 0)
+ return ret;
+
+ *val = ret / 1000;
+
+ return IIO_VAL_INT;
+ default:
+ return -EINVAL;
+ }
+}
+
+/**
+ * Read enabled ADC channels and push data to the buffer.
+ *
+ * @irq: The interrupt number (not used).
+ * @pollfunc: Pointer to the poll func.
+ */
+static irqreturn_t adc084s021_buffer_trigger_handler(int irq, void *pollfunc)
+{
+ struct iio_poll_func *pf = pollfunc;
+ struct iio_dev *indio_dev = pf->indio_dev;
+ struct adc084s021 *adc = iio_priv(indio_dev);
+ __be16 data[8] = {0}; /* 4 * 16-bit words of data + 8 bytes timestamp */
+
+ mutex_lock(&adc->lock);
+
+ if (adc084s021_adc_conversion(adc, &data) < 0)
+ dev_err(&adc->spi->dev, "Failed to read data\n");
+
+ iio_push_to_buffers_with_timestamp(indio_dev, data,
+ iio_get_time_ns(indio_dev));
+ mutex_unlock(&adc->lock);
+ iio_trigger_notify_done(indio_dev->trig);
+
+ return IRQ_HANDLED;
+}
+
+static int adc084s021_buffer_preenable(struct iio_dev *indio_dev)
+{
+ struct adc084s021 *adc = iio_priv(indio_dev);
+ int scan_index;
+ int i = 0;
+
+ for_each_set_bit(scan_index, indio_dev->active_scan_mask,
+ indio_dev->masklength) {
+ const struct iio_chan_spec *channel =
+ &indio_dev->channels[scan_index];
+ adc->tx_buf[i++] = channel->channel << 3;
+ }
+ adc->spi_trans.len = 2 + (i * sizeof(__be16)); /* Trash + channels */
+
+ return regulator_enable(adc->reg);
+}
+
+static int adc084s021_buffer_postdisable(struct iio_dev *indio_dev)
+{
+ struct adc084s021 *adc = iio_priv(indio_dev);
+
+ adc->spi_trans.len = 4; /* Trash + single channel */
+
+ return regulator_disable(adc->reg);
+}
+
+static const struct iio_info adc084s021_info = {
+ .read_raw = adc084s021_read_raw,
+ .driver_module = THIS_MODULE,
+};
+
+static const struct iio_buffer_setup_ops adc084s021_buffer_setup_ops = {
+ .preenable = adc084s021_buffer_preenable,
+ .postenable = iio_triggered_buffer_postenable,
+ .predisable = iio_triggered_buffer_predisable,
+ .postdisable = adc084s021_buffer_postdisable,
+};
+
+static int adc084s021_probe(struct spi_device *spi)
+{
+ struct iio_dev *indio_dev;
+ struct adc084s021 *adc;
+ int ret;
+
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adc));
+ if (!indio_dev) {
+ dev_err(&spi->dev, "Failed to allocate IIO device\n");
+ return -ENOMEM;
+ }
+
+ adc = iio_priv(indio_dev);
+ adc->spi = spi;
+
+ /* Connect the SPI device and the iio dev */
+ spi_set_drvdata(spi, indio_dev);
+
+ /* Initiate the Industrial I/O device */
+ indio_dev->dev.parent = &spi->dev;
+ indio_dev->dev.of_node = spi->dev.of_node;
+ indio_dev->name = spi_get_device_id(spi)->name;
+ indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->info = &adc084s021_info;
+ indio_dev->channels = adc084s021_channels;
+ indio_dev->num_channels = ARRAY_SIZE(adc084s021_channels);
+
+ /* Create SPI transfer for channel reads */
+ adc->spi_trans.tx_buf = adc->tx_buf;
+ adc->spi_trans.rx_buf = adc->rx_buf;
+ adc->spi_trans.len = 4; /* Trash + single channel */
+ spi_message_init_with_transfers(&adc->message, &adc->spi_trans, 1);
+
+ adc->reg = devm_regulator_get(&spi->dev, "vref");
+ if (IS_ERR(adc->reg))
+ return PTR_ERR(adc->reg);
+
+ mutex_init(&adc->lock);
+
+ /* Setup triggered buffer with pollfunction */
+ ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev, NULL,
+ adc084s021_buffer_trigger_handler,
+ &adc084s021_buffer_setup_ops);
+ if (ret) {
+ dev_err(&spi->dev, "Failed to setup triggered buffer\n");
+ return ret;
+ }
+
+ return devm_iio_device_register(&spi->dev, indio_dev);
+}
+
+static const struct of_device_id adc084s021_of_match[] = {
+ { .compatible = "ti,adc084s021", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, adc084s021_of_match);
+
+static const struct spi_device_id adc084s021_id[] = {
+ { ADC084S021_DRIVER_NAME, 0},
+ {}
+};
+MODULE_DEVICE_TABLE(spi, adc084s021_id);
+
+static struct spi_driver adc084s021_driver = {
+ .driver = {
+ .name = ADC084S021_DRIVER_NAME,
+ .of_match_table = of_match_ptr(adc084s021_of_match),
+ },
+ .probe = adc084s021_probe,
+ .id_table = adc084s021_id,
+};
+module_spi_driver(adc084s021_driver);
+
+MODULE_AUTHOR("Mårten Lindahl <martenli@axis.com>");
+MODULE_DESCRIPTION("Texas Instruments ADC084S021");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION("1.0");
--- /dev/null
+/*
+ * TI ADC108S102 SPI ADC driver
+ *
+ * Copyright (c) 2013-2015 Intel Corporation.
+ * Copyright (c) 2017 Siemens AG
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * This IIO device driver is designed to work with the following
+ * analog to digital converters from Texas Instruments:
+ * ADC108S102
+ * ADC128S102
+ * The communication with ADC chip is via the SPI bus (mode 3).
+ */
+
+#include <linux/acpi.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/types.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/property.h>
+#include <linux/regulator/consumer.h>
+#include <linux/spi/spi.h>
+
+/*
+ * In case of ACPI, we use the hard-wired 5000 mV of the Galileo and IOT2000
+ * boards as default for the reference pin VA. Device tree users encode that
+ * via the vref-supply regulator.
+ */
+#define ADC108S102_VA_MV_ACPI_DEFAULT 5000
+
+/*
+ * Defining the ADC resolution being 12 bits, we can use the same driver for
+ * both ADC108S102 (10 bits resolution) and ADC128S102 (12 bits resolution)
+ * chips. The ADC108S102 effectively returns a 12-bit result with the 2
+ * least-significant bits unset.
+ */
+#define ADC108S102_BITS 12
+#define ADC108S102_MAX_CHANNELS 8
+
+/*
+ * 16-bit SPI command format:
+ * [15:14] Ignored
+ * [13:11] 3-bit channel address
+ * [10:0] Ignored
+ */
+#define ADC108S102_CMD(ch) ((u16)(ch) << 11)
+
+/*
+ * 16-bit SPI response format:
+ * [15:12] Zeros
+ * [11:0] 12-bit ADC sample (for ADC108S102, [1:0] will always be 0).
+ */
+#define ADC108S102_RES_DATA(res) ((u16)res & GENMASK(11, 0))
+
+struct adc108s102_state {
+ struct spi_device *spi;
+ struct regulator *reg;
+ u32 va_millivolt;
+ /* SPI transfer used by triggered buffer handler*/
+ struct spi_transfer ring_xfer;
+ /* SPI transfer used by direct scan */
+ struct spi_transfer scan_single_xfer;
+ /* SPI message used by ring_xfer SPI transfer */
+ struct spi_message ring_msg;
+ /* SPI message used by scan_single_xfer SPI transfer */
+ struct spi_message scan_single_msg;
+
+ /*
+ * SPI message buffers:
+ * tx_buf: |C0|C1|C2|C3|C4|C5|C6|C7|XX|
+ * rx_buf: |XX|R0|R1|R2|R3|R4|R5|R6|R7|tt|tt|tt|tt|
+ *
+ * tx_buf: 8 channel read commands, plus 1 dummy command
+ * rx_buf: 1 dummy response, 8 channel responses, plus 64-bit timestamp
+ */
+ __be16 rx_buf[13] ____cacheline_aligned;
+ __be16 tx_buf[9] ____cacheline_aligned;
+};
+
+#define ADC108S102_V_CHAN(index) \
+ { \
+ .type = IIO_VOLTAGE, \
+ .indexed = 1, \
+ .channel = index, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
+ BIT(IIO_CHAN_INFO_SCALE), \
+ .address = index, \
+ .scan_index = index, \
+ .scan_type = { \
+ .sign = 'u', \
+ .realbits = ADC108S102_BITS, \
+ .storagebits = 16, \
+ .endianness = IIO_BE, \
+ }, \
+ }
+
+static const struct iio_chan_spec adc108s102_channels[] = {
+ ADC108S102_V_CHAN(0),
+ ADC108S102_V_CHAN(1),
+ ADC108S102_V_CHAN(2),
+ ADC108S102_V_CHAN(3),
+ ADC108S102_V_CHAN(4),
+ ADC108S102_V_CHAN(5),
+ ADC108S102_V_CHAN(6),
+ ADC108S102_V_CHAN(7),
+ IIO_CHAN_SOFT_TIMESTAMP(8),
+};
+
+static int adc108s102_update_scan_mode(struct iio_dev *indio_dev,
+ unsigned long const *active_scan_mask)
+{
+ struct adc108s102_state *st = iio_priv(indio_dev);
+ unsigned int bit, cmds;
+
+ /*
+ * Fill in the first x shorts of tx_buf with the number of channels
+ * enabled for sampling by the triggered buffer.
+ */
+ cmds = 0;
+ for_each_set_bit(bit, active_scan_mask, ADC108S102_MAX_CHANNELS)
+ st->tx_buf[cmds++] = cpu_to_be16(ADC108S102_CMD(bit));
+
+ /* One dummy command added, to clock in the last response */
+ st->tx_buf[cmds++] = 0x00;
+
+ /* build SPI ring message */
+ st->ring_xfer.tx_buf = &st->tx_buf[0];
+ st->ring_xfer.rx_buf = &st->rx_buf[0];
+ st->ring_xfer.len = cmds * sizeof(st->tx_buf[0]);
+
+ spi_message_init_with_transfers(&st->ring_msg, &st->ring_xfer, 1);
+
+ return 0;
+}
+
+static irqreturn_t adc108s102_trigger_handler(int irq, void *p)
+{
+ struct iio_poll_func *pf = p;
+ struct iio_dev *indio_dev = pf->indio_dev;
+ struct adc108s102_state *st = iio_priv(indio_dev);
+ int ret;
+
+ ret = spi_sync(st->spi, &st->ring_msg);
+ if (ret < 0)
+ goto out_notify;
+
+ /* Skip the dummy response in the first slot */
+ iio_push_to_buffers_with_timestamp(indio_dev,
+ (u8 *)&st->rx_buf[1],
+ iio_get_time_ns(indio_dev));
+
+out_notify:
+ iio_trigger_notify_done(indio_dev->trig);
+
+ return IRQ_HANDLED;
+}
+
+static int adc108s102_scan_direct(struct adc108s102_state *st, unsigned int ch)
+{
+ int ret;
+
+ st->tx_buf[0] = cpu_to_be16(ADC108S102_CMD(ch));
+ ret = spi_sync(st->spi, &st->scan_single_msg);
+ if (ret)
+ return ret;
+
+ /* Skip the dummy response in the first slot */
+ return be16_to_cpu(st->rx_buf[1]);
+}
+
+static int adc108s102_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val, int *val2, long m)
+{
+ struct adc108s102_state *st = iio_priv(indio_dev);
+ int ret;
+
+ switch (m) {
+ case IIO_CHAN_INFO_RAW:
+ ret = iio_device_claim_direct_mode(indio_dev);
+ if (ret)
+ return ret;
+
+ ret = adc108s102_scan_direct(st, chan->address);
+
+ iio_device_release_direct_mode(indio_dev);
+
+ if (ret < 0)
+ return ret;
+
+ *val = ADC108S102_RES_DATA(ret);
+
+ return IIO_VAL_INT;
+ case IIO_CHAN_INFO_SCALE:
+ if (chan->type != IIO_VOLTAGE)
+ break;
+
+ *val = st->va_millivolt;
+ *val2 = chan->scan_type.realbits;
+
+ return IIO_VAL_FRACTIONAL_LOG2;
+ default:
+ break;
+ }
+
+ return -EINVAL;
+}
+
+static const struct iio_info adc108s102_info = {
+ .read_raw = &adc108s102_read_raw,
+ .update_scan_mode = &adc108s102_update_scan_mode,
+ .driver_module = THIS_MODULE,
+};
+
+static int adc108s102_probe(struct spi_device *spi)
+{
+ struct adc108s102_state *st;
+ struct iio_dev *indio_dev;
+ int ret;
+
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ st = iio_priv(indio_dev);
+
+ if (ACPI_COMPANION(&spi->dev)) {
+ st->va_millivolt = ADC108S102_VA_MV_ACPI_DEFAULT;
+ } else {
+ st->reg = devm_regulator_get(&spi->dev, "vref");
+ if (IS_ERR(st->reg))
+ return PTR_ERR(st->reg);
+
+ ret = regulator_enable(st->reg);
+ if (ret < 0) {
+ dev_err(&spi->dev, "Cannot enable vref regulator\n");
+ return ret;
+ }
+
+ ret = regulator_get_voltage(st->reg);
+ if (ret < 0) {
+ dev_err(&spi->dev, "vref get voltage failed\n");
+ return ret;
+ }
+
+ st->va_millivolt = ret / 1000;
+ }
+
+ spi_set_drvdata(spi, indio_dev);
+ st->spi = spi;
+
+ indio_dev->name = spi->modalias;
+ indio_dev->dev.parent = &spi->dev;
+ indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->channels = adc108s102_channels;
+ indio_dev->num_channels = ARRAY_SIZE(adc108s102_channels);
+ indio_dev->info = &adc108s102_info;
+
+ /* Setup default message */
+ st->scan_single_xfer.tx_buf = st->tx_buf;
+ st->scan_single_xfer.rx_buf = st->rx_buf;
+ st->scan_single_xfer.len = 2 * sizeof(st->tx_buf[0]);
+
+ spi_message_init_with_transfers(&st->scan_single_msg,
+ &st->scan_single_xfer, 1);
+
+ ret = iio_triggered_buffer_setup(indio_dev, NULL,
+ &adc108s102_trigger_handler, NULL);
+ if (ret)
+ goto error_disable_reg;
+
+ ret = iio_device_register(indio_dev);
+ if (ret) {
+ dev_err(&spi->dev, "Failed to register IIO device\n");
+ goto error_cleanup_triggered_buffer;
+ }
+ return 0;
+
+error_cleanup_triggered_buffer:
+ iio_triggered_buffer_cleanup(indio_dev);
+
+error_disable_reg:
+ regulator_disable(st->reg);
+
+ return ret;
+}
+
+static int adc108s102_remove(struct spi_device *spi)
+{
+ struct iio_dev *indio_dev = spi_get_drvdata(spi);
+ struct adc108s102_state *st = iio_priv(indio_dev);
+
+ iio_device_unregister(indio_dev);
+ iio_triggered_buffer_cleanup(indio_dev);
+
+ regulator_disable(st->reg);
+
+ return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id adc108s102_of_match[] = {
+ { .compatible = "ti,adc108s102" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, adc108s102_of_match);
+#endif
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id adc108s102_acpi_ids[] = {
+ { "INT3495", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, adc108s102_acpi_ids);
+#endif
+
+static const struct spi_device_id adc108s102_id[] = {
+ { "adc108s102", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(spi, adc108s102_id);
+
+static struct spi_driver adc108s102_driver = {
+ .driver = {
+ .name = "adc108s102",
+ .of_match_table = of_match_ptr(adc108s102_of_match),
+ .acpi_match_table = ACPI_PTR(adc108s102_acpi_ids),
+ },
+ .probe = adc108s102_probe,
+ .remove = adc108s102_remove,
+ .id_table = adc108s102_id,
+};
+module_spi_driver(adc108s102_driver);
+
+MODULE_AUTHOR("Bogdan Pricop <bogdan.pricop@emutex.com>");
+MODULE_DESCRIPTION("Texas Instruments ADC108S102 and ADC128S102 driver");
+MODULE_LICENSE("GPL v2");
{HID_USAGE_SENSOR_TIME_TIMESTAMP, HID_USAGE_SENSOR_UNITS_MILLISECOND,
1000000, 0},
+ {HID_USAGE_SENSOR_DEVICE_ORIENTATION, 0, 1, 0},
+
+ {HID_USAGE_SENSOR_RELATIVE_ORIENTATION, 0, 1, 0},
+
+ {HID_USAGE_SENSOR_GEOMAGNETIC_ORIENTATION, 0, 1, 0},
+
{HID_USAGE_SENSOR_TEMPERATURE, 0, 1000, 0},
{HID_USAGE_SENSOR_TEMPERATURE, HID_USAGE_SENSOR_UNITS_DEGREES, 1000, 0},
ret = sensor_hub_set_feature(st->hsdev, st->poll.report_id,
st->poll.index, sizeof(value), &value);
if (ret < 0 || value < 0)
- ret = -EINVAL;
+ return -EINVAL;
ret = sensor_hub_get_feature(st->hsdev,
st->poll.report_id,
st->sensitivity.index, sizeof(value),
&value);
if (ret < 0 || value < 0)
- ret = -EINVAL;
+ return -EINVAL;
ret = sensor_hub_get_feature(st->hsdev,
st->sensitivity.report_id,
}
+static void hid_sensor_get_report_latency_info(struct hid_sensor_hub_device *hsdev,
+ u32 usage_id,
+ struct hid_sensor_common *st)
+{
+ sensor_hub_input_get_attribute_info(hsdev, HID_FEATURE_REPORT,
+ usage_id,
+ HID_USAGE_SENSOR_PROP_REPORT_LATENCY,
+ &st->report_latency);
+
+ hid_dbg(hsdev->hdev, "Report latency attributes: %x:%x\n",
+ st->report_latency.index, st->report_latency.report_id);
+}
+
+int hid_sensor_get_report_latency(struct hid_sensor_common *st)
+{
+ int ret;
+ int value;
+
+ ret = sensor_hub_get_feature(st->hsdev, st->report_latency.report_id,
+ st->report_latency.index, sizeof(value),
+ &value);
+ if (ret < 0)
+ return ret;
+
+ return value;
+}
+EXPORT_SYMBOL(hid_sensor_get_report_latency);
+
+int hid_sensor_set_report_latency(struct hid_sensor_common *st, int latency_ms)
+{
+ return sensor_hub_set_feature(st->hsdev, st->report_latency.report_id,
+ st->report_latency.index,
+ sizeof(latency_ms), &latency_ms);
+}
+EXPORT_SYMBOL(hid_sensor_set_report_latency);
+
+bool hid_sensor_batch_mode_supported(struct hid_sensor_common *st)
+{
+ return st->report_latency.index > 0 && st->report_latency.report_id > 0;
+}
+EXPORT_SYMBOL(hid_sensor_batch_mode_supported);
+
int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev,
u32 usage_id,
struct hid_sensor_common *st)
} else
st->timestamp_ns_scale = 1000000000;
+ hid_sensor_get_report_latency_info(hsdev, usage_id, st);
+
hid_dbg(hsdev->hdev, "common attributes: %x:%x, %x:%x, %x:%x %x:%x %x:%x\n",
st->poll.index, st->poll.report_id,
st->report_state.index, st->report_state.report_id,
#include <linux/hid-sensor-hub.h>
#include <linux/iio/iio.h>
#include <linux/iio/trigger.h>
+#include <linux/iio/buffer.h>
#include <linux/iio/sysfs.h>
#include "hid-sensor-trigger.h"
+static ssize_t _hid_sensor_set_report_latency(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev);
+ int integer, fract, ret;
+ int latency;
+
+ ret = iio_str_to_fixpoint(buf, 100000, &integer, &fract);
+ if (ret)
+ return ret;
+
+ latency = integer * 1000 + fract / 1000;
+ ret = hid_sensor_set_report_latency(attrb, latency);
+ if (ret < 0)
+ return len;
+
+ attrb->latency_ms = hid_sensor_get_report_latency(attrb);
+
+ return len;
+}
+
+static ssize_t _hid_sensor_get_report_latency(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev);
+ int latency;
+
+ latency = hid_sensor_get_report_latency(attrb);
+ if (latency < 0)
+ return latency;
+
+ return sprintf(buf, "%d.%06u\n", latency / 1000, (latency % 1000) * 1000);
+}
+
+static ssize_t _hid_sensor_get_fifo_state(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct hid_sensor_common *attrb = iio_device_get_drvdata(indio_dev);
+ int latency;
+
+ latency = hid_sensor_get_report_latency(attrb);
+ if (latency < 0)
+ return latency;
+
+ return sprintf(buf, "%d\n", !!latency);
+}
+
+static IIO_DEVICE_ATTR(hwfifo_timeout, 0644,
+ _hid_sensor_get_report_latency,
+ _hid_sensor_set_report_latency, 0);
+static IIO_DEVICE_ATTR(hwfifo_enabled, 0444,
+ _hid_sensor_get_fifo_state, NULL, 0);
+
+static const struct attribute *hid_sensor_fifo_attributes[] = {
+ &iio_dev_attr_hwfifo_timeout.dev_attr.attr,
+ &iio_dev_attr_hwfifo_enabled.dev_attr.attr,
+ NULL,
+};
+
+static void hid_sensor_setup_batch_mode(struct iio_dev *indio_dev,
+ struct hid_sensor_common *st)
+{
+ if (!hid_sensor_batch_mode_supported(st))
+ return;
+
+ iio_buffer_set_attrs(indio_dev->buffer, hid_sensor_fifo_attributes);
+}
+
static int _hid_sensor_power_state(struct hid_sensor_common *st, bool state)
{
int state_val;
sizeof(attrb->raw_hystersis),
&attrb->raw_hystersis);
+ if (attrb->latency_ms > 0)
+ hid_sensor_set_report_latency(attrb, attrb->latency_ms);
+
_hid_sensor_power_state(attrb, true);
}
attrb->trigger = trig;
indio_dev->trig = iio_trigger_get(trig);
+ hid_sensor_setup_batch_mode(indio_dev, attrb);
+
ret = pm_runtime_set_active(&indio_dev->dev);
if (ret)
goto error_unreg_trigger;
AD5045, AD5064, AD5064-1, AD5065, AD5625, AD5625R, AD5627, AD5627R,
AD5628, AD5629R, AD5645R, AD5647R, AD5648, AD5665, AD5665R, AD5666,
AD5667, AD5667R, AD5668, AD5669R, LTC2606, LTC2607, LTC2609, LTC2616,
- LTC2617, LTC2619, LTC2626, LTC2627, LTC2629 Digital to Analog Converter.
+ LTC2617, LTC2619, LTC2626, LTC2627, LTC2629, LTC2631, LTC2633, LTC2635
+ Digital to Analog Converter.
To compile this driver as a module, choose M here: the
module will be called ad5064.
* AD5024, AD5025, AD5044, AD5045, AD5064, AD5064-1, AD5065, AD5625, AD5625R,
* AD5627, AD5627R, AD5628, AD5629R, AD5645R, AD5647R, AD5648, AD5665, AD5665R,
* AD5666, AD5667, AD5667R, AD5668, AD5669R, LTC2606, LTC2607, LTC2609, LTC2616,
- * LTC2617, LTC2619, LTC2626, LTC2627, LTC2629 Digital to analog converters
- * driver
+ * LTC2617, LTC2619, LTC2626, LTC2627, LTC2629, LTC2631, LTC2633, LTC2635
+ * Digital to analog converters driver
*
* Copyright 2011 Analog Devices Inc.
*
ID_LTC2626,
ID_LTC2627,
ID_LTC2629,
+ ID_LTC2631_L12,
+ ID_LTC2631_H12,
+ ID_LTC2631_L10,
+ ID_LTC2631_H10,
+ ID_LTC2631_L8,
+ ID_LTC2631_H8,
+ ID_LTC2633_L12,
+ ID_LTC2633_H12,
+ ID_LTC2633_L10,
+ ID_LTC2633_H10,
+ ID_LTC2633_L8,
+ ID_LTC2633_H8,
+ ID_LTC2635_L12,
+ ID_LTC2635_H12,
+ ID_LTC2635_L10,
+ ID_LTC2635_H10,
+ ID_LTC2635_L8,
+ ID_LTC2635_H8,
};
static int ad5064_write(struct ad5064_state *st, unsigned int cmd,
static DECLARE_AD5064_CHANNELS(ltc2607_channels, 16, 0, ltc2617_ext_info);
static DECLARE_AD5064_CHANNELS(ltc2617_channels, 14, 2, ltc2617_ext_info);
static DECLARE_AD5064_CHANNELS(ltc2627_channels, 12, 4, ltc2617_ext_info);
+#define ltc2631_12_channels ltc2627_channels
+static DECLARE_AD5064_CHANNELS(ltc2631_10_channels, 10, 6, ltc2617_ext_info);
+static DECLARE_AD5064_CHANNELS(ltc2631_8_channels, 8, 8, ltc2617_ext_info);
+
+#define LTC2631_INFO(vref, pchannels, nchannels) \
+ { \
+ .shared_vref = true, \
+ .internal_vref = vref, \
+ .channels = pchannels, \
+ .num_channels = nchannels, \
+ .regmap_type = AD5064_REGMAP_LTC, \
+ }
+
static const struct ad5064_chip_info ad5064_chip_info_tbl[] = {
[ID_AD5024] = {
.num_channels = 4,
.regmap_type = AD5064_REGMAP_LTC,
},
+ [ID_LTC2631_L12] = LTC2631_INFO(2500000, ltc2631_12_channels, 1),
+ [ID_LTC2631_H12] = LTC2631_INFO(4096000, ltc2631_12_channels, 1),
+ [ID_LTC2631_L10] = LTC2631_INFO(2500000, ltc2631_10_channels, 1),
+ [ID_LTC2631_H10] = LTC2631_INFO(4096000, ltc2631_10_channels, 1),
+ [ID_LTC2631_L8] = LTC2631_INFO(2500000, ltc2631_8_channels, 1),
+ [ID_LTC2631_H8] = LTC2631_INFO(4096000, ltc2631_8_channels, 1),
+ [ID_LTC2633_L12] = LTC2631_INFO(2500000, ltc2631_12_channels, 2),
+ [ID_LTC2633_H12] = LTC2631_INFO(4096000, ltc2631_12_channels, 2),
+ [ID_LTC2633_L10] = LTC2631_INFO(2500000, ltc2631_10_channels, 2),
+ [ID_LTC2633_H10] = LTC2631_INFO(4096000, ltc2631_10_channels, 2),
+ [ID_LTC2633_L8] = LTC2631_INFO(2500000, ltc2631_8_channels, 2),
+ [ID_LTC2633_H8] = LTC2631_INFO(4096000, ltc2631_8_channels, 2),
+ [ID_LTC2635_L12] = LTC2631_INFO(2500000, ltc2631_12_channels, 4),
+ [ID_LTC2635_H12] = LTC2631_INFO(4096000, ltc2631_12_channels, 4),
+ [ID_LTC2635_L10] = LTC2631_INFO(2500000, ltc2631_10_channels, 4),
+ [ID_LTC2635_H10] = LTC2631_INFO(4096000, ltc2631_10_channels, 4),
+ [ID_LTC2635_L8] = LTC2631_INFO(2500000, ltc2631_8_channels, 4),
+ [ID_LTC2635_H8] = LTC2631_INFO(4096000, ltc2631_8_channels, 4),
};
static inline unsigned int ad5064_num_vref(struct ad5064_state *st)
{"ltc2626", ID_LTC2626},
{"ltc2627", ID_LTC2627},
{"ltc2629", ID_LTC2629},
+ {"ltc2631-l12", ID_LTC2631_L12},
+ {"ltc2631-h12", ID_LTC2631_H12},
+ {"ltc2631-l10", ID_LTC2631_L10},
+ {"ltc2631-h10", ID_LTC2631_H10},
+ {"ltc2631-l8", ID_LTC2631_L8},
+ {"ltc2631-h8", ID_LTC2631_H8},
+ {"ltc2633-l12", ID_LTC2633_L12},
+ {"ltc2633-h12", ID_LTC2633_H12},
+ {"ltc2633-l10", ID_LTC2633_L10},
+ {"ltc2633-h10", ID_LTC2633_H10},
+ {"ltc2633-l8", ID_LTC2633_L8},
+ {"ltc2633-h8", ID_LTC2633_H8},
+ {"ltc2635-l12", ID_LTC2635_L12},
+ {"ltc2635-h12", ID_LTC2635_H12},
+ {"ltc2635-l10", ID_LTC2635_L10},
+ {"ltc2635-h10", ID_LTC2635_H10},
+ {"ltc2635-l8", ID_LTC2635_L8},
+ {"ltc2635-h8", ID_LTC2635_H8},
{}
};
MODULE_DEVICE_TABLE(i2c, ad5064_i2c_ids);
struct hts221_sensor sensors[HTS221_SENSOR_MAX];
+ bool enabled;
u8 odr;
const struct hts221_transfer_function *tf;
struct hts221_transfer_buffer tb;
};
+extern const struct dev_pm_ops hts221_pm_ops;
+
int hts221_config_drdy(struct hts221_hw *hw, bool enable);
int hts221_probe(struct iio_dev *iio_dev);
int hts221_power_on(struct hts221_hw *hw);
#include <linux/device.h>
#include <linux/iio/sysfs.h>
#include <linux/delay.h>
+#include <linux/pm.h>
#include <asm/unaligned.h>
#include "hts221.h"
int hts221_power_on(struct hts221_hw *hw)
{
- return hts221_update_odr(hw, hw->odr);
+ int err;
+
+ err = hts221_update_odr(hw, hw->odr);
+ if (err < 0)
+ return err;
+
+ hw->enabled = true;
+
+ return 0;
}
int hts221_power_off(struct hts221_hw *hw)
{
- u8 data[] = {0x00, 0x00};
+ __le16 data = 0;
+ int err;
- return hw->tf->write(hw->dev, HTS221_REG_CNTRL1_ADDR, sizeof(data),
- data);
+ err = hw->tf->write(hw->dev, HTS221_REG_CNTRL1_ADDR, sizeof(data),
+ (u8 *)&data);
+ if (err < 0)
+ return err;
+
+ hw->enabled = false;
+
+ return 0;
}
static int hts221_parse_temp_caldata(struct hts221_hw *hw)
}
EXPORT_SYMBOL(hts221_probe);
+static int __maybe_unused hts221_suspend(struct device *dev)
+{
+ struct iio_dev *iio_dev = dev_get_drvdata(dev);
+ struct hts221_hw *hw = iio_priv(iio_dev);
+ __le16 data = 0;
+ int err;
+
+ err = hw->tf->write(hw->dev, HTS221_REG_CNTRL1_ADDR, sizeof(data),
+ (u8 *)&data);
+
+ return err < 0 ? err : 0;
+}
+
+static int __maybe_unused hts221_resume(struct device *dev)
+{
+ struct iio_dev *iio_dev = dev_get_drvdata(dev);
+ struct hts221_hw *hw = iio_priv(iio_dev);
+ int err = 0;
+
+ if (hw->enabled)
+ err = hts221_update_odr(hw, hw->odr);
+
+ return err;
+}
+
+const struct dev_pm_ops hts221_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(hts221_suspend, hts221_resume)
+};
+EXPORT_SYMBOL(hts221_pm_ops);
+
MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
MODULE_DESCRIPTION("STMicroelectronics hts221 sensor driver");
MODULE_LICENSE("GPL v2");
static struct i2c_driver hts221_driver = {
.driver = {
.name = "hts221_i2c",
+ .pm = &hts221_pm_ops,
.of_match_table = of_match_ptr(hts221_i2c_of_match),
.acpi_match_table = ACPI_PTR(hts221_acpi_match),
},
static struct spi_driver hts221_driver = {
.driver = {
.name = "hts221_spi",
+ .pm = &hts221_pm_ops,
.of_match_table = of_match_ptr(hts221_spi_of_match),
},
.probe = hts221_spi_probe,
#endif /* CONFIG_SPI_MASTER */
};
+extern const struct dev_pm_ops st_lsm6dsx_pm_ops;
+
int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, const char *name,
const struct st_lsm6dsx_transfer_function *tf_ops);
int st_lsm6dsx_sensor_enable(struct st_lsm6dsx_sensor *sensor);
u8 val);
int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor,
u16 watermark);
+int st_lsm6dsx_flush_fifo(struct st_lsm6dsx_hw *hw);
+int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw,
+ enum st_lsm6dsx_fifo_mode fifo_mode);
#endif /* ST_LSM6DSX_H */
return 0;
}
-static int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw,
- enum st_lsm6dsx_fifo_mode fifo_mode)
+int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw,
+ enum st_lsm6dsx_fifo_mode fifo_mode)
{
u8 data;
int err;
return read_len;
}
-static int st_lsm6dsx_flush_fifo(struct st_lsm6dsx_hw *hw)
+int st_lsm6dsx_flush_fifo(struct st_lsm6dsx_hw *hw)
{
int err;
#include <linux/delay.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
+#include <linux/pm.h>
#include <linux/platform_data/st_sensors_pdata.h>
}
EXPORT_SYMBOL(st_lsm6dsx_probe);
+static int __maybe_unused st_lsm6dsx_suspend(struct device *dev)
+{
+ struct st_lsm6dsx_hw *hw = dev_get_drvdata(dev);
+ struct st_lsm6dsx_sensor *sensor;
+ int i, err = 0;
+
+ for (i = 0; i < ST_LSM6DSX_ID_MAX; i++) {
+ sensor = iio_priv(hw->iio_devs[i]);
+ if (!(hw->enable_mask & BIT(sensor->id)))
+ continue;
+
+ err = st_lsm6dsx_write_with_mask(hw,
+ st_lsm6dsx_odr_table[sensor->id].reg.addr,
+ st_lsm6dsx_odr_table[sensor->id].reg.mask, 0);
+ if (err < 0)
+ return err;
+ }
+
+ if (hw->fifo_mode != ST_LSM6DSX_FIFO_BYPASS)
+ err = st_lsm6dsx_flush_fifo(hw);
+
+ return err;
+}
+
+static int __maybe_unused st_lsm6dsx_resume(struct device *dev)
+{
+ struct st_lsm6dsx_hw *hw = dev_get_drvdata(dev);
+ struct st_lsm6dsx_sensor *sensor;
+ int i, err = 0;
+
+ for (i = 0; i < ST_LSM6DSX_ID_MAX; i++) {
+ sensor = iio_priv(hw->iio_devs[i]);
+ if (!(hw->enable_mask & BIT(sensor->id)))
+ continue;
+
+ err = st_lsm6dsx_set_odr(sensor, sensor->odr);
+ if (err < 0)
+ return err;
+ }
+
+ if (hw->enable_mask)
+ err = st_lsm6dsx_set_fifo_mode(hw, ST_LSM6DSX_FIFO_CONT);
+
+ return err;
+}
+
+const struct dev_pm_ops st_lsm6dsx_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(st_lsm6dsx_suspend, st_lsm6dsx_resume)
+};
+EXPORT_SYMBOL(st_lsm6dsx_pm_ops);
+
MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx driver");
static struct i2c_driver st_lsm6dsx_driver = {
.driver = {
.name = "st_lsm6dsx_i2c",
+ .pm = &st_lsm6dsx_pm_ops,
.of_match_table = of_match_ptr(st_lsm6dsx_i2c_of_match),
},
.probe = st_lsm6dsx_i2c_probe,
static struct spi_driver st_lsm6dsx_driver = {
.driver = {
.name = "st_lsm6dsx_spi",
+ .pm = &st_lsm6dsx_pm_ops,
.of_match_table = of_match_ptr(st_lsm6dsx_spi_of_match),
},
.probe = st_lsm6dsx_spi_probe,
{
int i, ret, attrcount = 0;
- for_each_set_bit(i, infomask, sizeof(infomask)*8) {
+ for_each_set_bit(i, infomask, sizeof(*infomask)*8) {
if (i >= ARRAY_SIZE(iio_chan_info_postfix))
return -EINVAL;
ret = __iio_add_chan_devattr(iio_chan_info_postfix[i],
int i, ret, attrcount = 0;
char *avail_postfix;
- for_each_set_bit(i, infomask, sizeof(infomask) * 8) {
+ for_each_set_bit(i, infomask, sizeof(*infomask) * 8) {
avail_postfix = kasprintf(GFP_KERNEL,
"%s_available",
iio_chan_info_postfix[i]);
err_unlock:
mutex_unlock(&chan->indio_dev->info_exist_lock);
- if (ret >= 0 && type != IIO_VAL_INT) {
+ if (ret >= 0 && type != IIO_VAL_INT)
/* raw values are assumed to be IIO_VAL_INT */
ret = -EINVAL;
- goto err_unlock;
- }
return ret;
}
in lux, proximity infrared sensing and normal infrared sensing.
Data from sensor is accessible via sysfs.
+config SENSORS_ISL29028
+ tristate "Intersil ISL29028 Concurrent Light and Proximity Sensor"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Provides driver for the Intersil's ISL29028 device.
+ This driver supports the sysfs interface to get the ALS, IR intensity,
+ Proximity value via iio. The ISL29028 provides the concurrent sensing
+ of ambient light and proximity.
+
config ISL29125
tristate "Intersil ISL29125 digital color light sensor"
depends on I2C
obj-$(CONFIG_HID_SENSOR_ALS) += hid-sensor-als.o
obj-$(CONFIG_HID_SENSOR_PROX) += hid-sensor-prox.o
obj-$(CONFIG_SENSORS_ISL29018) += isl29018.o
+obj-$(CONFIG_SENSORS_ISL29028) += isl29028.o
obj-$(CONFIG_ISL29125) += isl29125.o
obj-$(CONFIG_JSA1212) += jsa1212.o
obj-$(CONFIG_SENSORS_LM3533) += lm3533-als.o
#define ISL29018_PM_OPS NULL
#endif
+#ifdef CONFIG_ACPI
static const struct acpi_device_id isl29018_acpi_match[] = {
{"ISL29018", isl29018},
{"ISL29023", isl29023},
{},
};
MODULE_DEVICE_TABLE(acpi, isl29018_acpi_match);
+#endif
static const struct i2c_device_id isl29018_id[] = {
{"isl29018", isl29018},
--- /dev/null
+/*
+ * IIO driver for the light sensor ISL29028.
+ * ISL29028 is Concurrent Ambient Light and Proximity Sensor
+ *
+ * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2016-2017 Brian Masney <masneyb@onstation.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Datasheets:
+ * - http://www.intersil.com/content/dam/Intersil/documents/isl2/isl29028.pdf
+ * - http://www.intersil.com/content/dam/Intersil/documents/isl2/isl29030.pdf
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/regmap.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/pm_runtime.h>
+
+#define ISL29028_CONV_TIME_MS 100
+
+#define ISL29028_REG_CONFIGURE 0x01
+
+#define ISL29028_CONF_ALS_IR_MODE_ALS 0
+#define ISL29028_CONF_ALS_IR_MODE_IR BIT(0)
+#define ISL29028_CONF_ALS_IR_MODE_MASK BIT(0)
+
+#define ISL29028_CONF_ALS_RANGE_LOW_LUX 0
+#define ISL29028_CONF_ALS_RANGE_HIGH_LUX BIT(1)
+#define ISL29028_CONF_ALS_RANGE_MASK BIT(1)
+
+#define ISL29028_CONF_ALS_DIS 0
+#define ISL29028_CONF_ALS_EN BIT(2)
+#define ISL29028_CONF_ALS_EN_MASK BIT(2)
+
+#define ISL29028_CONF_PROX_SLP_SH 4
+#define ISL29028_CONF_PROX_SLP_MASK (7 << ISL29028_CONF_PROX_SLP_SH)
+
+#define ISL29028_CONF_PROX_EN BIT(7)
+#define ISL29028_CONF_PROX_EN_MASK BIT(7)
+
+#define ISL29028_REG_INTERRUPT 0x02
+
+#define ISL29028_REG_PROX_DATA 0x08
+#define ISL29028_REG_ALSIR_L 0x09
+#define ISL29028_REG_ALSIR_U 0x0A
+
+#define ISL29028_REG_TEST1_MODE 0x0E
+#define ISL29028_REG_TEST2_MODE 0x0F
+
+#define ISL29028_NUM_REGS (ISL29028_REG_TEST2_MODE + 1)
+
+#define ISL29028_POWER_OFF_DELAY_MS 2000
+
+struct isl29028_prox_data {
+ int sampling_int;
+ int sampling_fract;
+ int sleep_time;
+};
+
+static const struct isl29028_prox_data isl29028_prox_data[] = {
+ { 1, 250000, 800 },
+ { 2, 500000, 400 },
+ { 5, 0, 200 },
+ { 10, 0, 100 },
+ { 13, 300000, 75 },
+ { 20, 0, 50 },
+ { 80, 0, 13 }, /*
+ * Note: Data sheet lists 12.5 ms sleep time.
+ * Round up a half millisecond for msleep().
+ */
+ { 100, 0, 0 }
+};
+
+enum isl29028_als_ir_mode {
+ ISL29028_MODE_NONE = 0,
+ ISL29028_MODE_ALS,
+ ISL29028_MODE_IR,
+};
+
+struct isl29028_chip {
+ struct mutex lock;
+ struct regmap *regmap;
+ int prox_sampling_int;
+ int prox_sampling_frac;
+ bool enable_prox;
+ int lux_scale;
+ enum isl29028_als_ir_mode als_ir_mode;
+};
+
+static int isl29028_find_prox_sleep_index(int sampling_int, int sampling_fract)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(isl29028_prox_data); ++i) {
+ if (isl29028_prox_data[i].sampling_int == sampling_int &&
+ isl29028_prox_data[i].sampling_fract == sampling_fract)
+ return i;
+ }
+
+ return -EINVAL;
+}
+
+static int isl29028_set_proxim_sampling(struct isl29028_chip *chip,
+ int sampling_int, int sampling_fract)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ int sleep_index, ret;
+
+ sleep_index = isl29028_find_prox_sleep_index(sampling_int,
+ sampling_fract);
+ if (sleep_index < 0)
+ return sleep_index;
+
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_PROX_SLP_MASK,
+ sleep_index << ISL29028_CONF_PROX_SLP_SH);
+
+ if (ret < 0) {
+ dev_err(dev, "%s(): Error %d setting the proximity sampling\n",
+ __func__, ret);
+ return ret;
+ }
+
+ chip->prox_sampling_int = sampling_int;
+ chip->prox_sampling_frac = sampling_fract;
+
+ return ret;
+}
+
+static int isl29028_enable_proximity(struct isl29028_chip *chip)
+{
+ int prox_index, ret;
+
+ ret = isl29028_set_proxim_sampling(chip, chip->prox_sampling_int,
+ chip->prox_sampling_frac);
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_PROX_EN_MASK,
+ ISL29028_CONF_PROX_EN);
+ if (ret < 0)
+ return ret;
+
+ /* Wait for conversion to be complete for first sample */
+ prox_index = isl29028_find_prox_sleep_index(chip->prox_sampling_int,
+ chip->prox_sampling_frac);
+ if (prox_index < 0)
+ return prox_index;
+
+ msleep(isl29028_prox_data[prox_index].sleep_time);
+
+ return 0;
+}
+
+static int isl29028_set_als_scale(struct isl29028_chip *chip, int lux_scale)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ int val = (lux_scale == 2000) ? ISL29028_CONF_ALS_RANGE_HIGH_LUX :
+ ISL29028_CONF_ALS_RANGE_LOW_LUX;
+ int ret;
+
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_ALS_RANGE_MASK, val);
+ if (ret < 0) {
+ dev_err(dev, "%s(): Error %d setting the ALS scale\n", __func__,
+ ret);
+ return ret;
+ }
+
+ chip->lux_scale = lux_scale;
+
+ return ret;
+}
+
+static int isl29028_set_als_ir_mode(struct isl29028_chip *chip,
+ enum isl29028_als_ir_mode mode)
+{
+ int ret;
+
+ if (chip->als_ir_mode == mode)
+ return 0;
+
+ ret = isl29028_set_als_scale(chip, chip->lux_scale);
+ if (ret < 0)
+ return ret;
+
+ switch (mode) {
+ case ISL29028_MODE_ALS:
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_ALS_IR_MODE_MASK,
+ ISL29028_CONF_ALS_IR_MODE_ALS);
+ if (ret < 0)
+ return ret;
+
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_ALS_RANGE_MASK,
+ ISL29028_CONF_ALS_RANGE_HIGH_LUX);
+ break;
+ case ISL29028_MODE_IR:
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_ALS_IR_MODE_MASK,
+ ISL29028_CONF_ALS_IR_MODE_IR);
+ break;
+ case ISL29028_MODE_NONE:
+ return regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_ALS_EN_MASK,
+ ISL29028_CONF_ALS_DIS);
+ }
+
+ if (ret < 0)
+ return ret;
+
+ /* Enable the ALS/IR */
+ ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
+ ISL29028_CONF_ALS_EN_MASK,
+ ISL29028_CONF_ALS_EN);
+ if (ret < 0)
+ return ret;
+
+ /* Need to wait for conversion time if ALS/IR mode enabled */
+ msleep(ISL29028_CONV_TIME_MS);
+
+ chip->als_ir_mode = mode;
+
+ return 0;
+}
+
+static int isl29028_read_als_ir(struct isl29028_chip *chip, int *als_ir)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ unsigned int lsb;
+ unsigned int msb;
+ int ret;
+
+ ret = regmap_read(chip->regmap, ISL29028_REG_ALSIR_L, &lsb);
+ if (ret < 0) {
+ dev_err(dev,
+ "%s(): Error %d reading register ALSIR_L\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = regmap_read(chip->regmap, ISL29028_REG_ALSIR_U, &msb);
+ if (ret < 0) {
+ dev_err(dev,
+ "%s(): Error %d reading register ALSIR_U\n",
+ __func__, ret);
+ return ret;
+ }
+
+ *als_ir = ((msb & 0xF) << 8) | (lsb & 0xFF);
+
+ return 0;
+}
+
+static int isl29028_read_proxim(struct isl29028_chip *chip, int *prox)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ unsigned int data;
+ int ret;
+
+ if (!chip->enable_prox) {
+ ret = isl29028_enable_proximity(chip);
+ if (ret < 0)
+ return ret;
+
+ chip->enable_prox = true;
+ }
+
+ ret = regmap_read(chip->regmap, ISL29028_REG_PROX_DATA, &data);
+ if (ret < 0) {
+ dev_err(dev, "%s(): Error %d reading register PROX_DATA\n",
+ __func__, ret);
+ return ret;
+ }
+
+ *prox = data;
+
+ return 0;
+}
+
+static int isl29028_als_get(struct isl29028_chip *chip, int *als_data)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ int ret;
+ int als_ir_data;
+
+ ret = isl29028_set_als_ir_mode(chip, ISL29028_MODE_ALS);
+ if (ret < 0) {
+ dev_err(dev, "%s(): Error %d enabling ALS mode\n", __func__,
+ ret);
+ return ret;
+ }
+
+ ret = isl29028_read_als_ir(chip, &als_ir_data);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * convert als data count to lux.
+ * if lux_scale = 125, lux = count * 0.031
+ * if lux_scale = 2000, lux = count * 0.49
+ */
+ if (chip->lux_scale == 125)
+ als_ir_data = (als_ir_data * 31) / 1000;
+ else
+ als_ir_data = (als_ir_data * 49) / 100;
+
+ *als_data = als_ir_data;
+
+ return 0;
+}
+
+static int isl29028_ir_get(struct isl29028_chip *chip, int *ir_data)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ int ret;
+
+ ret = isl29028_set_als_ir_mode(chip, ISL29028_MODE_IR);
+ if (ret < 0) {
+ dev_err(dev, "%s(): Error %d enabling IR mode\n", __func__,
+ ret);
+ return ret;
+ }
+
+ return isl29028_read_als_ir(chip, ir_data);
+}
+
+static int isl29028_set_pm_runtime_busy(struct isl29028_chip *chip, bool on)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ int ret;
+
+ if (on) {
+ ret = pm_runtime_get_sync(dev);
+ if (ret < 0)
+ pm_runtime_put_noidle(dev);
+ } else {
+ pm_runtime_mark_last_busy(dev);
+ ret = pm_runtime_put_autosuspend(dev);
+ }
+
+ return ret;
+}
+
+/* Channel IO */
+static int isl29028_write_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int val, int val2, long mask)
+{
+ struct isl29028_chip *chip = iio_priv(indio_dev);
+ struct device *dev = regmap_get_device(chip->regmap);
+ int ret;
+
+ ret = isl29028_set_pm_runtime_busy(chip, true);
+ if (ret < 0)
+ return ret;
+
+ mutex_lock(&chip->lock);
+
+ ret = -EINVAL;
+ switch (chan->type) {
+ case IIO_PROXIMITY:
+ if (mask != IIO_CHAN_INFO_SAMP_FREQ) {
+ dev_err(dev,
+ "%s(): proximity: Mask value 0x%08lx is not supported\n",
+ __func__, mask);
+ break;
+ }
+
+ if (val < 1 || val > 100) {
+ dev_err(dev,
+ "%s(): proximity: Sampling frequency %d is not in the range [1:100]\n",
+ __func__, val);
+ break;
+ }
+
+ ret = isl29028_set_proxim_sampling(chip, val, val2);
+ break;
+ case IIO_LIGHT:
+ if (mask != IIO_CHAN_INFO_SCALE) {
+ dev_err(dev,
+ "%s(): light: Mask value 0x%08lx is not supported\n",
+ __func__, mask);
+ break;
+ }
+
+ if (val != 125 && val != 2000) {
+ dev_err(dev,
+ "%s(): light: Lux scale %d is not in the set {125, 2000}\n",
+ __func__, val);
+ break;
+ }
+
+ ret = isl29028_set_als_scale(chip, val);
+ break;
+ default:
+ dev_err(dev, "%s(): Unsupported channel type %x\n",
+ __func__, chan->type);
+ break;
+ }
+
+ mutex_unlock(&chip->lock);
+
+ if (ret < 0)
+ return ret;
+
+ ret = isl29028_set_pm_runtime_busy(chip, false);
+ if (ret < 0)
+ return ret;
+
+ return ret;
+}
+
+static int isl29028_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val, int *val2, long mask)
+{
+ struct isl29028_chip *chip = iio_priv(indio_dev);
+ struct device *dev = regmap_get_device(chip->regmap);
+ int ret, pm_ret;
+
+ ret = isl29028_set_pm_runtime_busy(chip, true);
+ if (ret < 0)
+ return ret;
+
+ mutex_lock(&chip->lock);
+
+ ret = -EINVAL;
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ case IIO_CHAN_INFO_PROCESSED:
+ switch (chan->type) {
+ case IIO_LIGHT:
+ ret = isl29028_als_get(chip, val);
+ break;
+ case IIO_INTENSITY:
+ ret = isl29028_ir_get(chip, val);
+ break;
+ case IIO_PROXIMITY:
+ ret = isl29028_read_proxim(chip, val);
+ break;
+ default:
+ break;
+ }
+
+ if (ret < 0)
+ break;
+
+ ret = IIO_VAL_INT;
+ break;
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ if (chan->type != IIO_PROXIMITY)
+ break;
+
+ *val = chip->prox_sampling_int;
+ *val2 = chip->prox_sampling_frac;
+ ret = IIO_VAL_INT;
+ break;
+ case IIO_CHAN_INFO_SCALE:
+ if (chan->type != IIO_LIGHT)
+ break;
+ *val = chip->lux_scale;
+ ret = IIO_VAL_INT;
+ break;
+ default:
+ dev_err(dev, "%s(): mask value 0x%08lx is not supported\n",
+ __func__, mask);
+ break;
+ }
+
+ mutex_unlock(&chip->lock);
+
+ if (ret < 0)
+ return ret;
+
+ /**
+ * Preserve the ret variable if the call to
+ * isl29028_set_pm_runtime_busy() is successful so the reading
+ * (if applicable) is returned to user space.
+ */
+ pm_ret = isl29028_set_pm_runtime_busy(chip, false);
+ if (pm_ret < 0)
+ return pm_ret;
+
+ return ret;
+}
+
+static IIO_CONST_ATTR(in_proximity_sampling_frequency_available,
+ "1.25 2.5 5 10 13.3 20 80 100");
+static IIO_CONST_ATTR(in_illuminance_scale_available, "125 2000");
+
+#define ISL29028_CONST_ATTR(name) (&iio_const_attr_##name.dev_attr.attr)
+static struct attribute *isl29028_attributes[] = {
+ ISL29028_CONST_ATTR(in_proximity_sampling_frequency_available),
+ ISL29028_CONST_ATTR(in_illuminance_scale_available),
+ NULL,
+};
+
+static const struct attribute_group isl29108_group = {
+ .attrs = isl29028_attributes,
+};
+
+static const struct iio_chan_spec isl29028_channels[] = {
+ {
+ .type = IIO_LIGHT,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+ BIT(IIO_CHAN_INFO_SCALE),
+ }, {
+ .type = IIO_INTENSITY,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ }, {
+ .type = IIO_PROXIMITY,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_SAMP_FREQ),
+ }
+};
+
+static const struct iio_info isl29028_info = {
+ .attrs = &isl29108_group,
+ .driver_module = THIS_MODULE,
+ .read_raw = isl29028_read_raw,
+ .write_raw = isl29028_write_raw,
+};
+
+static int isl29028_clear_configure_reg(struct isl29028_chip *chip)
+{
+ struct device *dev = regmap_get_device(chip->regmap);
+ int ret;
+
+ ret = regmap_write(chip->regmap, ISL29028_REG_CONFIGURE, 0x0);
+ if (ret < 0)
+ dev_err(dev, "%s(): Error %d clearing the CONFIGURE register\n",
+ __func__, ret);
+
+ chip->als_ir_mode = ISL29028_MODE_NONE;
+ chip->enable_prox = false;
+
+ return ret;
+}
+
+static bool isl29028_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case ISL29028_REG_INTERRUPT:
+ case ISL29028_REG_PROX_DATA:
+ case ISL29028_REG_ALSIR_L:
+ case ISL29028_REG_ALSIR_U:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config isl29028_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .volatile_reg = isl29028_is_volatile_reg,
+ .max_register = ISL29028_NUM_REGS - 1,
+ .num_reg_defaults_raw = ISL29028_NUM_REGS,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static int isl29028_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct isl29028_chip *chip;
+ struct iio_dev *indio_dev;
+ int ret;
+
+ indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ chip = iio_priv(indio_dev);
+
+ i2c_set_clientdata(client, indio_dev);
+ mutex_init(&chip->lock);
+
+ chip->regmap = devm_regmap_init_i2c(client, &isl29028_regmap_config);
+ if (IS_ERR(chip->regmap)) {
+ ret = PTR_ERR(chip->regmap);
+ dev_err(&client->dev, "%s: Error %d initializing regmap\n",
+ __func__, ret);
+ return ret;
+ }
+
+ chip->enable_prox = false;
+ chip->prox_sampling_int = 20;
+ chip->prox_sampling_frac = 0;
+ chip->lux_scale = 2000;
+
+ ret = regmap_write(chip->regmap, ISL29028_REG_TEST1_MODE, 0x0);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "%s(): Error %d writing to TEST1_MODE register\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = regmap_write(chip->regmap, ISL29028_REG_TEST2_MODE, 0x0);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "%s(): Error %d writing to TEST2_MODE register\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = isl29028_clear_configure_reg(chip);
+ if (ret < 0)
+ return ret;
+
+ indio_dev->info = &isl29028_info;
+ indio_dev->channels = isl29028_channels;
+ indio_dev->num_channels = ARRAY_SIZE(isl29028_channels);
+ indio_dev->name = id->name;
+ indio_dev->dev.parent = &client->dev;
+ indio_dev->modes = INDIO_DIRECT_MODE;
+
+ pm_runtime_enable(&client->dev);
+ pm_runtime_set_autosuspend_delay(&client->dev,
+ ISL29028_POWER_OFF_DELAY_MS);
+ pm_runtime_use_autosuspend(&client->dev);
+
+ ret = devm_iio_device_register(indio_dev->dev.parent, indio_dev);
+ if (ret < 0) {
+ dev_err(&client->dev,
+ "%s(): iio registration failed with error %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int isl29028_remove(struct i2c_client *client)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(client);
+ struct isl29028_chip *chip = iio_priv(indio_dev);
+
+ iio_device_unregister(indio_dev);
+
+ pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
+ pm_runtime_put_noidle(&client->dev);
+
+ return isl29028_clear_configure_reg(chip);
+}
+
+static int __maybe_unused isl29028_suspend(struct device *dev)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+ struct isl29028_chip *chip = iio_priv(indio_dev);
+ int ret;
+
+ mutex_lock(&chip->lock);
+
+ ret = isl29028_clear_configure_reg(chip);
+
+ mutex_unlock(&chip->lock);
+
+ return ret;
+}
+
+static int __maybe_unused isl29028_resume(struct device *dev)
+{
+ /**
+ * The specific component (ALS/IR or proximity) will enable itself as
+ * needed the next time that the user requests a reading. This is done
+ * above in isl29028_set_als_ir_mode() and isl29028_enable_proximity().
+ */
+ return 0;
+}
+
+static const struct dev_pm_ops isl29028_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
+ SET_RUNTIME_PM_OPS(isl29028_suspend, isl29028_resume, NULL)
+};
+
+static const struct i2c_device_id isl29028_id[] = {
+ {"isl29028", 0},
+ {"isl29030", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, isl29028_id);
+
+static const struct of_device_id isl29028_of_match[] = {
+ { .compatible = "isl,isl29028", }, /* for backward compat., don't use */
+ { .compatible = "isil,isl29028", },
+ { .compatible = "isil,isl29030", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, isl29028_of_match);
+
+static struct i2c_driver isl29028_driver = {
+ .driver = {
+ .name = "isl29028",
+ .pm = &isl29028_pm_ops,
+ .of_match_table = isl29028_of_match,
+ },
+ .probe = isl29028_probe,
+ .remove = isl29028_remove,
+ .id_table = isl29028_id,
+};
+
+module_i2c_driver(isl29028_driver);
+
+MODULE_DESCRIPTION("ISL29028 Ambient Light and Proximity Sensor driver");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
*
* IIO driver for RPR-0521RS (7-bit I2C slave address 0x38).
*
- * TODO: illuminance channel, PM support, buffer
+ * TODO: illuminance channel, buffer
*/
#include <linux/module.h>
#define RPR0521_REG_PXS_DATA 0x44 /* 16-bit, little endian */
#define RPR0521_REG_ALS_DATA0 0x46 /* 16-bit, little endian */
#define RPR0521_REG_ALS_DATA1 0x48 /* 16-bit, little endian */
+#define RPR0521_REG_PS_OFFSET_LSB 0x53
#define RPR0521_REG_ID 0x92
#define RPR0521_MODE_ALS_MASK BIT(7)
};
enum rpr0521_channel {
+ RPR0521_CHAN_PXS,
RPR0521_CHAN_ALS_DATA0,
RPR0521_CHAN_ALS_DATA1,
- RPR0521_CHAN_PXS,
};
struct rpr0521_reg_desc {
};
static const struct rpr0521_reg_desc rpr0521_data_reg[] = {
+ [RPR0521_CHAN_PXS] = {
+ .address = RPR0521_REG_PXS_DATA,
+ .device_mask = RPR0521_MODE_PXS_MASK,
+ },
[RPR0521_CHAN_ALS_DATA0] = {
.address = RPR0521_REG_ALS_DATA0,
.device_mask = RPR0521_MODE_ALS_MASK,
.address = RPR0521_REG_ALS_DATA1,
.device_mask = RPR0521_MODE_ALS_MASK,
},
- [RPR0521_CHAN_PXS] = {
- .address = RPR0521_REG_PXS_DATA,
- .device_mask = RPR0521_MODE_PXS_MASK,
- },
};
static const struct rpr0521_gain_info {
const struct rpr0521_gain *gain;
int size;
} rpr0521_gain[] = {
+ [RPR0521_CHAN_PXS] = {
+ .reg = RPR0521_REG_PXS_CTRL,
+ .mask = RPR0521_PXS_GAIN_MASK,
+ .shift = RPR0521_PXS_GAIN_SHIFT,
+ .gain = rpr0521_pxs_gain,
+ .size = ARRAY_SIZE(rpr0521_pxs_gain),
+ },
[RPR0521_CHAN_ALS_DATA0] = {
.reg = RPR0521_REG_ALS_CTRL,
.mask = RPR0521_ALS_DATA0_GAIN_MASK,
.gain = rpr0521_als_gain,
.size = ARRAY_SIZE(rpr0521_als_gain),
},
- [RPR0521_CHAN_PXS] = {
- .reg = RPR0521_REG_PXS_CTRL,
- .mask = RPR0521_PXS_GAIN_MASK,
- .shift = RPR0521_PXS_GAIN_SHIFT,
- .gain = rpr0521_pxs_gain,
- .size = ARRAY_SIZE(rpr0521_pxs_gain),
- },
+};
+
+struct rpr0521_samp_freq {
+ int als_hz;
+ int als_uhz;
+ int pxs_hz;
+ int pxs_uhz;
+};
+
+static const struct rpr0521_samp_freq rpr0521_samp_freq_i[13] = {
+/* {ALS, PXS}, W==currently writable option */
+ {0, 0, 0, 0}, /* W0000, 0=standby */
+ {0, 0, 100, 0}, /* 0001 */
+ {0, 0, 25, 0}, /* 0010 */
+ {0, 0, 10, 0}, /* 0011 */
+ {0, 0, 2, 500000}, /* 0100 */
+ {10, 0, 20, 0}, /* 0101 */
+ {10, 0, 10, 0}, /* W0110 */
+ {10, 0, 2, 500000}, /* 0111 */
+ {2, 500000, 20, 0}, /* 1000, measurement 100ms, sleep 300ms */
+ {2, 500000, 10, 0}, /* 1001, measurement 100ms, sleep 300ms */
+ {2, 500000, 0, 0}, /* 1010, high sensitivity mode */
+ {2, 500000, 2, 500000}, /* W1011, high sensitivity mode */
+ {20, 0, 20, 0} /* 1100, ALS_data x 0.5, see specification P.18 */
};
struct rpr0521_data {
bool als_dev_en;
bool pxs_dev_en;
- /* optimize runtime pm ops - enable device only if needed */
+ /* optimize runtime pm ops - enable/disable device only if needed */
bool als_ps_need_en;
bool pxs_ps_need_en;
+ bool als_need_dis;
+ bool pxs_need_dis;
struct regmap *regmap;
};
static IIO_CONST_ATTR(in_intensity_scale_available, RPR0521_ALS_SCALE_AVAIL);
static IIO_CONST_ATTR(in_proximity_scale_available, RPR0521_PXS_SCALE_AVAIL);
+/*
+ * Start with easy freq first, whole table of freq combinations is more
+ * complicated.
+ */
+static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("2.5 10");
+
static struct attribute *rpr0521_attributes[] = {
&iio_const_attr_in_intensity_scale_available.dev_attr.attr,
&iio_const_attr_in_proximity_scale_available.dev_attr.attr,
+ &iio_const_attr_sampling_frequency_available.dev_attr.attr,
NULL,
};
};
static const struct iio_chan_spec rpr0521_channels[] = {
+ {
+ .type = IIO_PROXIMITY,
+ .address = RPR0521_CHAN_PXS,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_OFFSET) |
+ BIT(IIO_CHAN_INFO_SCALE),
+ .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),
+ },
{
.type = IIO_INTENSITY,
.modified = 1,
.channel2 = IIO_MOD_LIGHT_BOTH,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
BIT(IIO_CHAN_INFO_SCALE),
+ .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),
},
{
.type = IIO_INTENSITY,
.channel2 = IIO_MOD_LIGHT_IR,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
BIT(IIO_CHAN_INFO_SCALE),
+ .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),
},
- {
- .type = IIO_PROXIMITY,
- .address = RPR0521_CHAN_PXS,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_SCALE),
- }
};
static int rpr0521_als_enable(struct rpr0521_data *data, u8 status)
if (ret < 0)
return ret;
- data->als_dev_en = true;
+ if (status & RPR0521_MODE_ALS_MASK)
+ data->als_dev_en = true;
+ else
+ data->als_dev_en = false;
return 0;
}
if (ret < 0)
return ret;
- data->pxs_dev_en = true;
+ if (status & RPR0521_MODE_PXS_MASK)
+ data->pxs_dev_en = true;
+ else
+ data->pxs_dev_en = false;
return 0;
}
* @on: state to be set for devices in @device_mask
* @device_mask: bitmask specifying for which device we need to update @on state
*
- * We rely on rpr0521_runtime_resume to enable our @device_mask devices, but
- * if (for example) PXS was enabled (pxs_dev_en = true) by a previous call to
- * rpr0521_runtime_resume and we want to enable ALS we MUST set ALS enable
- * bit of RPR0521_REG_MODE_CTRL here because rpr0521_runtime_resume will not
- * be called twice.
+ * Calls for this function must be balanced so that each ON should have matching
+ * OFF. Otherwise pm usage_count gets out of sync.
*/
static int rpr0521_set_power_state(struct rpr0521_data *data, bool on,
u8 device_mask)
{
#ifdef CONFIG_PM
int ret;
- u8 update_mask = 0;
if (device_mask & RPR0521_MODE_ALS_MASK) {
- if (on && !data->als_ps_need_en && data->pxs_dev_en)
- update_mask |= RPR0521_MODE_ALS_MASK;
- else
- data->als_ps_need_en = on;
+ data->als_ps_need_en = on;
+ data->als_need_dis = !on;
}
if (device_mask & RPR0521_MODE_PXS_MASK) {
- if (on && !data->pxs_ps_need_en && data->als_dev_en)
- update_mask |= RPR0521_MODE_PXS_MASK;
- else
- data->pxs_ps_need_en = on;
- }
-
- if (update_mask) {
- ret = regmap_update_bits(data->regmap, RPR0521_REG_MODE_CTRL,
- update_mask, update_mask);
- if (ret < 0)
- return ret;
+ data->pxs_ps_need_en = on;
+ data->pxs_need_dis = !on;
}
+ /*
+ * On: _resume() is called only when we are suspended
+ * Off: _suspend() is called after delay if _resume() is not
+ * called before that.
+ * Note: If either measurement is re-enabled before _suspend(),
+ * both stay enabled until _suspend().
+ */
if (on) {
ret = pm_runtime_get_sync(&data->client->dev);
} else {
return ret;
}
+
+ if (on) {
+ /* If _resume() was not called, enable measurement now. */
+ if (data->als_ps_need_en) {
+ ret = rpr0521_als_enable(data, RPR0521_MODE_ALS_ENABLE);
+ if (ret)
+ return ret;
+ data->als_ps_need_en = false;
+ }
+
+ if (data->pxs_ps_need_en) {
+ ret = rpr0521_pxs_enable(data, RPR0521_MODE_PXS_ENABLE);
+ if (ret)
+ return ret;
+ data->pxs_ps_need_en = false;
+ }
+ }
#endif
return 0;
}
idx << rpr0521_gain[chan].shift);
}
+static int rpr0521_read_samp_freq(struct rpr0521_data *data,
+ enum iio_chan_type chan_type,
+ int *val, int *val2)
+{
+ int reg, ret;
+
+ ret = regmap_read(data->regmap, RPR0521_REG_MODE_CTRL, ®);
+ if (ret < 0)
+ return ret;
+
+ reg &= RPR0521_MODE_MEAS_TIME_MASK;
+ if (reg >= ARRAY_SIZE(rpr0521_samp_freq_i))
+ return -EINVAL;
+
+ switch (chan_type) {
+ case IIO_INTENSITY:
+ *val = rpr0521_samp_freq_i[reg].als_hz;
+ *val2 = rpr0521_samp_freq_i[reg].als_uhz;
+ return 0;
+
+ case IIO_PROXIMITY:
+ *val = rpr0521_samp_freq_i[reg].pxs_hz;
+ *val2 = rpr0521_samp_freq_i[reg].pxs_uhz;
+ return 0;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static int rpr0521_write_samp_freq_common(struct rpr0521_data *data,
+ enum iio_chan_type chan_type,
+ int val, int val2)
+{
+ int i;
+
+ /*
+ * Ignore channel
+ * both pxs and als are setup only to same freq because of simplicity
+ */
+ switch (val) {
+ case 0:
+ i = 0;
+ break;
+
+ case 2:
+ if (val2 != 500000)
+ return -EINVAL;
+
+ i = 11;
+ break;
+
+ case 10:
+ i = 6;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return regmap_update_bits(data->regmap,
+ RPR0521_REG_MODE_CTRL,
+ RPR0521_MODE_MEAS_TIME_MASK,
+ i);
+}
+
+static int rpr0521_read_ps_offset(struct rpr0521_data *data, int *offset)
+{
+ int ret;
+ __le16 buffer;
+
+ ret = regmap_bulk_read(data->regmap,
+ RPR0521_REG_PS_OFFSET_LSB, &buffer, sizeof(buffer));
+
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Failed to read PS OFFSET register\n");
+ return ret;
+ }
+ *offset = le16_to_cpu(buffer);
+
+ return ret;
+}
+
+static int rpr0521_write_ps_offset(struct rpr0521_data *data, int offset)
+{
+ int ret;
+ __le16 buffer;
+
+ buffer = cpu_to_le16(offset & 0x3ff);
+ ret = regmap_raw_write(data->regmap,
+ RPR0521_REG_PS_OFFSET_LSB, &buffer, sizeof(buffer));
+
+ if (ret < 0) {
+ dev_err(&data->client->dev, "Failed to write PS OFFSET register\n");
+ return ret;
+ }
+
+ return ret;
+}
+
static int rpr0521_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val,
int *val2, long mask)
ret = regmap_bulk_read(data->regmap,
rpr0521_data_reg[chan->address].address,
- &raw_data, 2);
+ &raw_data, sizeof(raw_data));
if (ret < 0) {
rpr0521_set_power_state(data, false, device_mask);
mutex_unlock(&data->lock);
*val = le16_to_cpu(raw_data);
return IIO_VAL_INT;
+
case IIO_CHAN_INFO_SCALE:
mutex_lock(&data->lock);
ret = rpr0521_get_gain(data, chan->address, val, val2);
return ret;
return IIO_VAL_INT_PLUS_MICRO;
+
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ mutex_lock(&data->lock);
+ ret = rpr0521_read_samp_freq(data, chan->type, val, val2);
+ mutex_unlock(&data->lock);
+ if (ret < 0)
+ return ret;
+
+ return IIO_VAL_INT_PLUS_MICRO;
+
+ case IIO_CHAN_INFO_OFFSET:
+ mutex_lock(&data->lock);
+ ret = rpr0521_read_ps_offset(data, val);
+ mutex_unlock(&data->lock);
+ if (ret < 0)
+ return ret;
+
+ return IIO_VAL_INT;
+
default:
return -EINVAL;
}
mutex_unlock(&data->lock);
return ret;
+
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ mutex_lock(&data->lock);
+ ret = rpr0521_write_samp_freq_common(data, chan->type,
+ val, val2);
+ mutex_unlock(&data->lock);
+
+ return ret;
+
+ case IIO_CHAN_INFO_OFFSET:
+ mutex_lock(&data->lock);
+ ret = rpr0521_write_ps_offset(data, val);
+ mutex_unlock(&data->lock);
+
+ return ret;
+
default:
return -EINVAL;
}
return ret;
}
+#ifndef CONFIG_PM
ret = rpr0521_als_enable(data, RPR0521_MODE_ALS_ENABLE);
if (ret < 0)
return ret;
ret = rpr0521_pxs_enable(data, RPR0521_MODE_PXS_ENABLE);
if (ret < 0)
return ret;
+#endif
return 0;
}
ret = pm_runtime_set_active(&client->dev);
if (ret < 0)
- return ret;
+ goto err_poweroff;
pm_runtime_enable(&client->dev);
pm_runtime_set_autosuspend_delay(&client->dev, RPR0521_SLEEP_DELAY_MS);
pm_runtime_use_autosuspend(&client->dev);
- return iio_device_register(indio_dev);
+ ret = iio_device_register(indio_dev);
+ if (ret)
+ goto err_pm_disable;
+
+ return 0;
+
+err_pm_disable:
+ pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
+ pm_runtime_put_noidle(&client->dev);
+err_poweroff:
+ rpr0521_poweroff(data);
+
+ return ret;
}
static int rpr0521_remove(struct i2c_client *client)
struct rpr0521_data *data = iio_priv(indio_dev);
int ret;
- /* disable channels and sets {als,pxs}_dev_en to false */
mutex_lock(&data->lock);
+ /* If measurements are enabled, enable them on resume */
+ if (!data->als_need_dis)
+ data->als_ps_need_en = data->als_dev_en;
+ if (!data->pxs_need_dis)
+ data->pxs_ps_need_en = data->pxs_dev_en;
+
+ /* disable channels and sets {als,pxs}_dev_en to false */
ret = rpr0521_poweroff(data);
+ regcache_mark_dirty(data->regmap);
mutex_unlock(&data->lock);
return ret;
struct rpr0521_data *data = iio_priv(indio_dev);
int ret;
+ regcache_sync(data->regmap);
if (data->als_ps_need_en) {
ret = rpr0521_als_enable(data, RPR0521_MODE_ALS_ENABLE);
if (ret < 0)
return ret;
data->pxs_ps_need_en = false;
}
+ msleep(100); //wait for first measurement result
return 0;
}
* within the TAOS tsl258x family of devices (tsl2580, tsl2581, tsl2583).
*
* Copyright (c) 2011, TAOS Corporation.
- * Copyright (c) 2016 Brian Masney <masneyb@onstation.org>
+ * Copyright (c) 2016-2017 Brian Masney <masneyb@onstation.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include <linux/module.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
+#include <linux/pm_runtime.h>
/* Device Registers and Masks */
#define TSL2583_CNTRL 0x00
#define TSL2583_CHIP_ID 0x90
#define TSL2583_CHIP_ID_MASK 0xf0
+#define TSL2583_POWER_OFF_DELAY_MS 2000
+
/* Per-device data */
struct tsl2583_als_info {
u16 als_ch0;
struct tsl2583_settings als_settings;
int als_time_scale;
int als_saturation;
- bool suspended;
};
struct gainadj {
if (ret < 0)
return ret;
- chip->suspended = false;
-
return ret;
}
mutex_lock(&chip->als_mutex);
- if (chip->suspended) {
- ret = -EBUSY;
- goto done;
- }
-
ret = tsl2583_als_calibrate(indio_dev);
if (ret < 0)
goto done;
},
};
+static int tsl2583_set_pm_runtime_busy(struct tsl2583_chip *chip, bool on)
+{
+ int ret;
+
+ if (on) {
+ ret = pm_runtime_get_sync(&chip->client->dev);
+ if (ret < 0)
+ pm_runtime_put_noidle(&chip->client->dev);
+ } else {
+ pm_runtime_mark_last_busy(&chip->client->dev);
+ ret = pm_runtime_put_autosuspend(&chip->client->dev);
+ }
+
+ return ret;
+}
+
static int tsl2583_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int *val, int *val2, long mask)
{
struct tsl2583_chip *chip = iio_priv(indio_dev);
- int ret = -EINVAL;
+ int ret, pm_ret;
- mutex_lock(&chip->als_mutex);
+ ret = tsl2583_set_pm_runtime_busy(chip, true);
+ if (ret < 0)
+ return ret;
- if (chip->suspended) {
- ret = -EBUSY;
- goto read_done;
- }
+ mutex_lock(&chip->als_mutex);
+ ret = -EINVAL;
switch (mask) {
case IIO_CHAN_INFO_RAW:
if (chan->type == IIO_LIGHT) {
read_done:
mutex_unlock(&chip->als_mutex);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * Preserve the ret variable if the call to
+ * tsl2583_set_pm_runtime_busy() is successful so the reading
+ * (if applicable) is returned to user space.
+ */
+ pm_ret = tsl2583_set_pm_runtime_busy(chip, false);
+ if (pm_ret < 0)
+ return pm_ret;
+
return ret;
}
int val, int val2, long mask)
{
struct tsl2583_chip *chip = iio_priv(indio_dev);
- int ret = -EINVAL;
+ int ret;
- mutex_lock(&chip->als_mutex);
+ ret = tsl2583_set_pm_runtime_busy(chip, true);
+ if (ret < 0)
+ return ret;
- if (chip->suspended) {
- ret = -EBUSY;
- goto write_done;
- }
+ mutex_lock(&chip->als_mutex);
+ ret = -EINVAL;
switch (mask) {
case IIO_CHAN_INFO_CALIBBIAS:
if (chan->type == IIO_LIGHT) {
break;
}
-write_done:
mutex_unlock(&chip->als_mutex);
+ if (ret < 0)
+ return ret;
+
+ ret = tsl2583_set_pm_runtime_busy(chip, false);
+ if (ret < 0)
+ return ret;
+
return ret;
}
i2c_set_clientdata(clientp, indio_dev);
mutex_init(&chip->als_mutex);
- chip->suspended = true;
ret = i2c_smbus_read_byte_data(clientp,
TSL2583_CMD_REG | TSL2583_CHIPID);
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->name = chip->client->name;
+ pm_runtime_enable(&clientp->dev);
+ pm_runtime_set_autosuspend_delay(&clientp->dev,
+ TSL2583_POWER_OFF_DELAY_MS);
+ pm_runtime_use_autosuspend(&clientp->dev);
+
ret = devm_iio_device_register(indio_dev->dev.parent, indio_dev);
if (ret) {
dev_err(&clientp->dev, "%s: iio registration failed\n",
/* Load up the V2 defaults (these are hard coded defaults for now) */
tsl2583_defaults(chip);
- /* Make sure the chip is on */
- ret = tsl2583_chip_init_and_power_on(indio_dev);
- if (ret < 0)
- return ret;
-
dev_info(&clientp->dev, "Light sensor found.\n");
return 0;
}
+static int tsl2583_remove(struct i2c_client *client)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(client);
+ struct tsl2583_chip *chip = iio_priv(indio_dev);
+
+ iio_device_unregister(indio_dev);
+
+ pm_runtime_disable(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
+ pm_runtime_put_noidle(&client->dev);
+
+ return tsl2583_set_power_state(chip, TSL2583_CNTL_PWR_OFF);
+}
+
static int __maybe_unused tsl2583_suspend(struct device *dev)
{
struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
mutex_lock(&chip->als_mutex);
ret = tsl2583_set_power_state(chip, TSL2583_CNTL_PWR_OFF);
- chip->suspended = true;
mutex_unlock(&chip->als_mutex);
return ret;
}
-static SIMPLE_DEV_PM_OPS(tsl2583_pm_ops, tsl2583_suspend, tsl2583_resume);
+static const struct dev_pm_ops tsl2583_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
+ SET_RUNTIME_PM_OPS(tsl2583_suspend, tsl2583_resume, NULL)
+};
static struct i2c_device_id tsl2583_idtable[] = {
{ "tsl2580", 0 },
},
.id_table = tsl2583_idtable,
.probe = tsl2583_probe,
+ .remove = tsl2583_remove,
};
module_i2c_driver(tsl2583_driver);
struct hid_sensor_common common_attributes;
struct hid_sensor_hub_attribute_info quaternion;
u32 sampled_vals[4];
+ int scale_pre_decml;
+ int scale_post_decml;
+ int scale_precision;
+ int value_offset;
};
/* Channel definitions */
.channel2 = IIO_MOD_QUATERNION,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ) |
+ BIT(IIO_CHAN_INFO_OFFSET) |
+ BIT(IIO_CHAN_INFO_SCALE) |
BIT(IIO_CHAN_INFO_HYSTERESIS)
}
};
} else
ret_type = -EINVAL;
break;
+ case IIO_CHAN_INFO_SCALE:
+ vals[0] = rot_state->scale_pre_decml;
+ vals[1] = rot_state->scale_post_decml;
+ return rot_state->scale_precision;
+
+ case IIO_CHAN_INFO_OFFSET:
+ *vals = rot_state->value_offset;
+ return IIO_VAL_INT;
+
case IIO_CHAN_INFO_SAMP_FREQ:
ret_type = hid_sensor_read_samp_freq_value(
&rot_state->common_attributes, &vals[0], &vals[1]);
dev_dbg(&pdev->dev, "dev_rot: attrib size %d\n",
st->quaternion.size);
+ st->scale_precision = hid_sensor_format_scale(
+ hsdev->usage,
+ &st->quaternion,
+ &st->scale_pre_decml, &st->scale_post_decml);
+
/* Set Sensitivity field ids, when there is no individual modifier */
if (st->common_attributes.sensitivity.index < 0) {
sensor_hub_input_get_attribute_info(hsdev,
static int hid_dev_rot_probe(struct platform_device *pdev)
{
int ret;
- static char *name = "dev_rotation";
+ static char *name;
struct iio_dev *indio_dev;
struct dev_rot_state *rot_state;
struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
rot_state->common_attributes.hsdev = hsdev;
rot_state->common_attributes.pdev = pdev;
- ret = hid_sensor_parse_common_attributes(hsdev,
- HID_USAGE_SENSOR_DEVICE_ORIENTATION,
+ switch (hsdev->usage) {
+ case HID_USAGE_SENSOR_DEVICE_ORIENTATION:
+ name = "dev_rotation";
+ break;
+ case HID_USAGE_SENSOR_RELATIVE_ORIENTATION:
+ name = "relative_orientation";
+ break;
+ case HID_USAGE_SENSOR_GEOMAGNETIC_ORIENTATION:
+ name = "geomagnetic_orientation";
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = hid_sensor_parse_common_attributes(hsdev, hsdev->usage,
&rot_state->common_attributes);
if (ret) {
dev_err(&pdev->dev, "failed to setup common attributes\n");
ret = dev_rot_parse_report(pdev, hsdev,
(struct iio_chan_spec *)indio_dev->channels,
- HID_USAGE_SENSOR_DEVICE_ORIENTATION,
- rot_state);
+ hsdev->usage, rot_state);
if (ret) {
dev_err(&pdev->dev, "failed to setup attributes\n");
return ret;
rot_state->callbacks.send_event = dev_rot_proc_event;
rot_state->callbacks.capture_sample = dev_rot_capture_sample;
rot_state->callbacks.pdev = pdev;
- ret = sensor_hub_register_callback(hsdev,
- HID_USAGE_SENSOR_DEVICE_ORIENTATION,
+ ret = sensor_hub_register_callback(hsdev, hsdev->usage,
&rot_state->callbacks);
if (ret) {
dev_err(&pdev->dev, "callback reg failed\n");
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
struct dev_rot_state *rot_state = iio_priv(indio_dev);
- sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_DEVICE_ORIENTATION);
+ sensor_hub_remove_callback(hsdev, hsdev->usage);
iio_device_unregister(indio_dev);
hid_sensor_remove_trigger(&rot_state->common_attributes);
iio_triggered_buffer_cleanup(indio_dev);
/* Format: HID-SENSOR-usage_id_in_hex_lowercase */
.name = "HID-SENSOR-20008a",
},
+ {
+ /* Relative orientation(AG) sensor */
+ .name = "HID-SENSOR-20008e",
+ },
+ {
+ /* Geomagnetic orientation(AM) sensor */
+ .name = "HID-SENSOR-2000c1",
+ },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(platform, hid_dev_rot_ids);
select BMP280_SPI if (SPI_MASTER)
help
Say yes here to build support for Bosch Sensortec BMP180 and BMP280
- pressure and temperature sensors. Also supports the BE280 with
+ pressure and temperature sensors. Also supports the BME280 with
an additional humidity sensor channel.
To compile this driver as a module, choose M here: the core module
int st_press_common_probe(struct iio_dev *indio_dev)
{
struct st_sensor_data *press_data = iio_priv(indio_dev);
+ struct st_sensors_platform_data *pdata =
+ (struct st_sensors_platform_data *)press_data->dev->platform_data;
int irq = press_data->get_irq_data_ready(indio_dev);
int err;
press_data->odr = press_data->sensor_settings->odr.odr_avl[0].hz;
/* Some devices don't support a data ready pin. */
- if (!press_data->dev->platform_data &&
- press_data->sensor_settings->drdy_irq.addr)
- press_data->dev->platform_data =
- (struct st_sensors_platform_data *)&default_press_pdata;
+ if (!pdata && press_data->sensor_settings->drdy_irq.addr)
+ pdata = (struct st_sensors_platform_data *)&default_press_pdata;
err = st_sensors_init_sensor(indio_dev, press_data->dev->platform_data);
if (err < 0)
{
int ret;
unsigned int val;
+ long timeout;
zpa2326_dbg(indio_dev, "waiting for one shot completion interrupt");
- ret = wait_for_completion_interruptible_timeout(
+ timeout = wait_for_completion_interruptible_timeout(
&private->data_ready, ZPA2326_CONVERSION_JIFFIES);
- if (ret > 0)
+ if (timeout > 0)
/*
* Interrupt handler completed before timeout: return operation
* status.
/* Clear all interrupts just to be sure. */
regmap_read(private->regmap, ZPA2326_INT_SOURCE_REG, &val);
- if (!ret)
+ if (!timeout) {
/* Timed out. */
+ zpa2326_warn(indio_dev, "no one shot interrupt occurred (%ld)",
+ timeout);
ret = -ETIME;
-
- if (ret != -ERESTARTSYS)
- zpa2326_warn(indio_dev, "no one shot interrupt occurred (%d)",
- ret);
+ } else if (timeout < 0) {
+ zpa2326_warn(indio_dev,
+ "wait for one shot interrupt cancelled");
+ ret = -ERESTARTSYS;
+ }
return ret;
}
if (ret)
return ret;
- if (m == IIO_CHAN_INFO_RAW)
- return IIO_VAL_INT;
-
/* storm out of range */
if (*val == AS3935_DATA_MASK)
return -EINVAL;
+ if (m == IIO_CHAN_INFO_RAW)
+ return IIO_VAL_INT;
+
if (m == IIO_CHAN_INFO_PROCESSED)
*val *= 1000;
break;
static const struct spi_device_id maxim_thermocouple_id[] = {
{"max6675", MAX6675},
{"max31855", MAX31855},
+ {"max31856", MAX31855},
{},
};
MODULE_DEVICE_TABLE(spi, maxim_thermocouple_id);
#include <linux/module.h>
#include <linux/platform_device.h>
-#define MAX_TRIGGERS 6
+#define MAX_TRIGGERS 7
#define MAX_VALIDS 5
/* List the triggers created by each timer */
static const void *triggers_table[][MAX_TRIGGERS] = {
- { TIM1_TRGO, TIM1_CH1, TIM1_CH2, TIM1_CH3, TIM1_CH4,},
+ { TIM1_TRGO, TIM1_TRGO2, TIM1_CH1, TIM1_CH2, TIM1_CH3, TIM1_CH4,},
{ TIM2_TRGO, TIM2_CH1, TIM2_CH2, TIM2_CH3, TIM2_CH4,},
{ TIM3_TRGO, TIM3_CH1, TIM3_CH2, TIM3_CH3, TIM3_CH4,},
{ TIM4_TRGO, TIM4_CH1, TIM4_CH2, TIM4_CH3, TIM4_CH4,},
{ TIM5_TRGO, TIM5_CH1, TIM5_CH2, TIM5_CH3, TIM5_CH4,},
{ TIM6_TRGO,},
{ TIM7_TRGO,},
- { TIM8_TRGO, TIM8_CH1, TIM8_CH2, TIM8_CH3, TIM8_CH4,},
+ { TIM8_TRGO, TIM8_TRGO2, TIM8_CH1, TIM8_CH2, TIM8_CH3, TIM8_CH4,},
{ TIM9_TRGO, TIM9_CH1, TIM9_CH2,},
{ }, /* timer 10 */
{ }, /* timer 11 */
u32 max_arr;
const void *triggers;
const void *valids;
+ bool has_trgo2;
};
+static bool stm32_timer_is_trgo2_name(const char *name)
+{
+ return !!strstr(name, "trgo2");
+}
+
static int stm32_timer_start(struct stm32_timer_trigger *priv,
+ struct iio_trigger *trig,
unsigned int frequency)
{
unsigned long long prd, div;
regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE, TIM_CR1_ARPE);
/* Force master mode to update mode */
- regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS, 0x20);
+ if (stm32_timer_is_trgo2_name(trig->name))
+ regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2,
+ 0x2 << TIM_CR2_MMS2_SHIFT);
+ else
+ regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS,
+ 0x2 << TIM_CR2_MMS_SHIFT);
/* Make sure that registers are updated */
regmap_update_bits(priv->regmap, TIM_EGR, TIM_EGR_UG, TIM_EGR_UG);
if (freq == 0) {
stm32_timer_stop(priv);
} else {
- ret = stm32_timer_start(priv, freq);
+ ret = stm32_timer_start(priv, trig, freq);
if (ret)
return ret;
}
stm32_tt_read_frequency,
stm32_tt_store_frequency);
+#define MASTER_MODE_MAX 7
+#define MASTER_MODE2_MAX 15
+
static char *master_mode_table[] = {
"reset",
"enable",
"OC1REF",
"OC2REF",
"OC3REF",
- "OC4REF"
+ "OC4REF",
+ /* Master mode selection 2 only */
+ "OC5REF",
+ "OC6REF",
+ "compare_pulse_OC4REF",
+ "compare_pulse_OC6REF",
+ "compare_pulse_OC4REF_r_or_OC6REF_r",
+ "compare_pulse_OC4REF_r_or_OC6REF_f",
+ "compare_pulse_OC5REF_r_or_OC6REF_r",
+ "compare_pulse_OC5REF_r_or_OC6REF_f",
};
static ssize_t stm32_tt_show_master_mode(struct device *dev,
char *buf)
{
struct stm32_timer_trigger *priv = dev_get_drvdata(dev);
+ struct iio_trigger *trig = to_iio_trigger(dev);
u32 cr2;
regmap_read(priv->regmap, TIM_CR2, &cr2);
- cr2 = (cr2 & TIM_CR2_MMS) >> TIM_CR2_MMS_SHIFT;
+
+ if (stm32_timer_is_trgo2_name(trig->name))
+ cr2 = (cr2 & TIM_CR2_MMS2) >> TIM_CR2_MMS2_SHIFT;
+ else
+ cr2 = (cr2 & TIM_CR2_MMS) >> TIM_CR2_MMS_SHIFT;
return snprintf(buf, PAGE_SIZE, "%s\n", master_mode_table[cr2]);
}
const char *buf, size_t len)
{
struct stm32_timer_trigger *priv = dev_get_drvdata(dev);
+ struct iio_trigger *trig = to_iio_trigger(dev);
+ u32 mask, shift, master_mode_max;
int i;
- for (i = 0; i < ARRAY_SIZE(master_mode_table); i++) {
+ if (stm32_timer_is_trgo2_name(trig->name)) {
+ mask = TIM_CR2_MMS2;
+ shift = TIM_CR2_MMS2_SHIFT;
+ master_mode_max = MASTER_MODE2_MAX;
+ } else {
+ mask = TIM_CR2_MMS;
+ shift = TIM_CR2_MMS_SHIFT;
+ master_mode_max = MASTER_MODE_MAX;
+ }
+
+ for (i = 0; i <= master_mode_max; i++) {
if (!strncmp(master_mode_table[i], buf,
strlen(master_mode_table[i]))) {
- regmap_update_bits(priv->regmap, TIM_CR2,
- TIM_CR2_MMS, i << TIM_CR2_MMS_SHIFT);
+ regmap_update_bits(priv->regmap, TIM_CR2, mask,
+ i << shift);
/* Make sure that registers are updated */
regmap_update_bits(priv->regmap, TIM_EGR,
TIM_EGR_UG, TIM_EGR_UG);
return -EINVAL;
}
-static IIO_CONST_ATTR(master_mode_available,
- "reset enable update compare_pulse OC1REF OC2REF OC3REF OC4REF");
+static ssize_t stm32_tt_show_master_mode_avail(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct iio_trigger *trig = to_iio_trigger(dev);
+ unsigned int i, master_mode_max;
+ size_t len = 0;
+
+ if (stm32_timer_is_trgo2_name(trig->name))
+ master_mode_max = MASTER_MODE2_MAX;
+ else
+ master_mode_max = MASTER_MODE_MAX;
+
+ for (i = 0; i <= master_mode_max; i++)
+ len += scnprintf(buf + len, PAGE_SIZE - len,
+ "%s ", master_mode_table[i]);
+
+ /* replace trailing space by newline */
+ buf[len - 1] = '\n';
+
+ return len;
+}
+
+static IIO_DEVICE_ATTR(master_mode_available, 0444,
+ stm32_tt_show_master_mode_avail, NULL, 0);
static IIO_DEVICE_ATTR(master_mode, 0660,
stm32_tt_show_master_mode,
static struct attribute *stm32_trigger_attrs[] = {
&iio_dev_attr_sampling_frequency.dev_attr.attr,
&iio_dev_attr_master_mode.dev_attr.attr,
- &iio_const_attr_master_mode_available.dev_attr.attr,
+ &iio_dev_attr_master_mode_available.dev_attr.attr,
NULL,
};
while (cur && *cur) {
struct iio_trigger *trig;
+ bool cur_is_trgo2 = stm32_timer_is_trgo2_name(*cur);
+
+ if (cur_is_trgo2 && !priv->has_trgo2) {
+ cur++;
+ continue;
+ }
trig = devm_iio_trigger_alloc(priv->dev, "%s", *cur);
if (!trig)
* should only be available on trgo trigger which
* is always the first in the list.
*/
- if (cur == priv->triggers)
+ if (cur == priv->triggers || cur_is_trgo2)
trig->dev.groups = stm32_trigger_attr_groups;
iio_trigger_set_drvdata(trig, priv);
}
EXPORT_SYMBOL(is_stm32_timer_trigger);
+static void stm32_timer_detect_trgo2(struct stm32_timer_trigger *priv)
+{
+ u32 val;
+
+ /*
+ * Master mode selection 2 bits can only be written and read back when
+ * timer supports it.
+ */
+ regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2, TIM_CR2_MMS2);
+ regmap_read(priv->regmap, TIM_CR2, &val);
+ regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2, 0);
+ priv->has_trgo2 = !!val;
+}
+
static int stm32_timer_trigger_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
priv->max_arr = ddata->max_arr;
priv->triggers = triggers_table[index];
priv->valids = valids_table[index];
+ stm32_timer_detect_trgo2(priv);
ret = stm32_setup_iio_triggers(priv);
if (ret)
return sprintf(buf, "%s\n", str);
}
-static IIO_DEVICE_ATTR(out_altvoltage0_out0_wavetype_available, S_IRUGO,
+static IIO_DEVICE_ATTR(out_altvoltage0_out0_wavetype_available, 0444,
ad9834_show_out0_wavetype_available, NULL, 0);
static
return sprintf(buf, "%s\n", str);
}
-static IIO_DEVICE_ATTR(out_altvoltage0_out1_wavetype_available, S_IRUGO,
+static IIO_DEVICE_ATTR(out_altvoltage0_out1_wavetype_available, 0444,
ad9834_show_out1_wavetype_available, NULL, 0);
/**
* see dds.h for further information
*/
-static IIO_DEV_ATTR_FREQ(0, 0, S_IWUSR, NULL, ad9834_write, AD9834_REG_FREQ0);
-static IIO_DEV_ATTR_FREQ(0, 1, S_IWUSR, NULL, ad9834_write, AD9834_REG_FREQ1);
-static IIO_DEV_ATTR_FREQSYMBOL(0, S_IWUSR, NULL, ad9834_write, AD9834_FSEL);
+static IIO_DEV_ATTR_FREQ(0, 0, 0200, NULL, ad9834_write, AD9834_REG_FREQ0);
+static IIO_DEV_ATTR_FREQ(0, 1, 0200, NULL, ad9834_write, AD9834_REG_FREQ1);
+static IIO_DEV_ATTR_FREQSYMBOL(0, 0200, NULL, ad9834_write, AD9834_FSEL);
static IIO_CONST_ATTR_FREQ_SCALE(0, "1"); /* 1Hz */
-static IIO_DEV_ATTR_PHASE(0, 0, S_IWUSR, NULL, ad9834_write, AD9834_REG_PHASE0);
-static IIO_DEV_ATTR_PHASE(0, 1, S_IWUSR, NULL, ad9834_write, AD9834_REG_PHASE1);
-static IIO_DEV_ATTR_PHASESYMBOL(0, S_IWUSR, NULL, ad9834_write, AD9834_PSEL);
+static IIO_DEV_ATTR_PHASE(0, 0, 0200, NULL, ad9834_write, AD9834_REG_PHASE0);
+static IIO_DEV_ATTR_PHASE(0, 1, 0200, NULL, ad9834_write, AD9834_REG_PHASE1);
+static IIO_DEV_ATTR_PHASESYMBOL(0, 0200, NULL, ad9834_write, AD9834_PSEL);
static IIO_CONST_ATTR_PHASE_SCALE(0, "0.0015339808"); /* 2PI/2^12 rad*/
-static IIO_DEV_ATTR_PINCONTROL_EN(0, S_IWUSR, NULL,
+static IIO_DEV_ATTR_PINCONTROL_EN(0, 0200, NULL,
ad9834_write, AD9834_PIN_SW);
-static IIO_DEV_ATTR_OUT_ENABLE(0, S_IWUSR, NULL, ad9834_write, AD9834_RESET);
-static IIO_DEV_ATTR_OUTY_ENABLE(0, 1, S_IWUSR, NULL,
+static IIO_DEV_ATTR_OUT_ENABLE(0, 0200, NULL, ad9834_write, AD9834_RESET);
+static IIO_DEV_ATTR_OUTY_ENABLE(0, 1, 0200, NULL,
ad9834_write, AD9834_OPBITEN);
static IIO_DEV_ATTR_OUT_WAVETYPE(0, 0, ad9834_store_wavetype, 0);
static IIO_DEV_ATTR_OUT_WAVETYPE(0, 1, ad9834_store_wavetype, 1);
#define IIO_DEV_ATTR_OUT_WAVETYPE(_channel, _output, _store, _addr) \
IIO_DEVICE_ATTR(out_altvoltage##_channel##_out##_output##_wavetype,\
- S_IWUSR, NULL, _store, _addr)
+ 0200, NULL, _store, _addr)
/**
* /sys/bus/iio/devices/.../out_altvoltageX_outY_wavetype_available
#
menu "Light sensors"
-config SENSORS_ISL29028
- tristate "Intersil ISL29028 Concurrent Light and Proximity Sensor"
- depends on I2C
- select REGMAP_I2C
- help
- Provides driver for the Intersil's ISL29028 device.
- This driver supports the sysfs interface to get the ALS, IR intensity,
- Proximity value via iio. The ISL29028 provides the concurrent sensing
- of ambient light and proximity.
-
config TSL2x7x
tristate "TAOS TSL/TMD2x71 and TSL/TMD2x72 Family of light and proximity sensors"
depends on I2C
# Makefile for industrial I/O Light sensors
#
-obj-$(CONFIG_SENSORS_ISL29028) += isl29028.o
-obj-$(CONFIG_TSL2x7x) += tsl2x7x_core.o
+obj-$(CONFIG_TSL2x7x) += tsl2x7x.o
+++ /dev/null
-/*
- * IIO driver for the light sensor ISL29028.
- * ISL29028 is Concurrent Ambient Light and Proximity Sensor
- *
- * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
- * Copyright (c) 2016-2017 Brian Masney <masneyb@onstation.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/module.h>
-#include <linux/i2c.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/regmap.h>
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include <linux/pm_runtime.h>
-
-#define ISL29028_CONV_TIME_MS 100
-
-#define ISL29028_REG_CONFIGURE 0x01
-
-#define ISL29028_CONF_ALS_IR_MODE_ALS 0
-#define ISL29028_CONF_ALS_IR_MODE_IR BIT(0)
-#define ISL29028_CONF_ALS_IR_MODE_MASK BIT(0)
-
-#define ISL29028_CONF_ALS_RANGE_LOW_LUX 0
-#define ISL29028_CONF_ALS_RANGE_HIGH_LUX BIT(1)
-#define ISL29028_CONF_ALS_RANGE_MASK BIT(1)
-
-#define ISL29028_CONF_ALS_DIS 0
-#define ISL29028_CONF_ALS_EN BIT(2)
-#define ISL29028_CONF_ALS_EN_MASK BIT(2)
-
-#define ISL29028_CONF_PROX_SLP_SH 4
-#define ISL29028_CONF_PROX_SLP_MASK (7 << ISL29028_CONF_PROX_SLP_SH)
-
-#define ISL29028_CONF_PROX_EN BIT(7)
-#define ISL29028_CONF_PROX_EN_MASK BIT(7)
-
-#define ISL29028_REG_INTERRUPT 0x02
-
-#define ISL29028_REG_PROX_DATA 0x08
-#define ISL29028_REG_ALSIR_L 0x09
-#define ISL29028_REG_ALSIR_U 0x0A
-
-#define ISL29028_REG_TEST1_MODE 0x0E
-#define ISL29028_REG_TEST2_MODE 0x0F
-
-#define ISL29028_NUM_REGS (ISL29028_REG_TEST2_MODE + 1)
-
-#define ISL29028_POWER_OFF_DELAY_MS 2000
-
-static const unsigned int isl29028_prox_sleep_time[] = {800, 400, 200, 100, 75,
- 50, 12, 0};
-
-enum isl29028_als_ir_mode {
- ISL29028_MODE_NONE = 0,
- ISL29028_MODE_ALS,
- ISL29028_MODE_IR,
-};
-
-struct isl29028_chip {
- struct mutex lock;
- struct regmap *regmap;
- unsigned int prox_sampling;
- bool enable_prox;
- int lux_scale;
- enum isl29028_als_ir_mode als_ir_mode;
-};
-
-static int isl29028_find_prox_sleep_time_index(int sampling)
-{
- unsigned int period = DIV_ROUND_UP(1000, sampling);
- int i;
-
- for (i = 0; i < ARRAY_SIZE(isl29028_prox_sleep_time); ++i) {
- if (period >= isl29028_prox_sleep_time[i])
- break;
- }
-
- return i;
-}
-
-static int isl29028_set_proxim_sampling(struct isl29028_chip *chip,
- unsigned int sampling)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- int sleep_index, ret;
-
- sleep_index = isl29028_find_prox_sleep_time_index(sampling);
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_PROX_SLP_MASK,
- sleep_index << ISL29028_CONF_PROX_SLP_SH);
-
- if (ret < 0) {
- dev_err(dev, "%s(): Error %d setting the proximity sampling\n",
- __func__, ret);
- return ret;
- }
-
- chip->prox_sampling = sampling;
-
- return ret;
-}
-
-static int isl29028_enable_proximity(struct isl29028_chip *chip)
-{
- int sleep_index, ret;
-
- ret = isl29028_set_proxim_sampling(chip, chip->prox_sampling);
- if (ret < 0)
- return ret;
-
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_PROX_EN_MASK,
- ISL29028_CONF_PROX_EN);
- if (ret < 0)
- return ret;
-
- /* Wait for conversion to be complete for first sample */
- sleep_index = isl29028_find_prox_sleep_time_index(chip->prox_sampling);
- msleep(isl29028_prox_sleep_time[sleep_index]);
-
- return 0;
-}
-
-static int isl29028_set_als_scale(struct isl29028_chip *chip, int lux_scale)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- int val = (lux_scale == 2000) ? ISL29028_CONF_ALS_RANGE_HIGH_LUX :
- ISL29028_CONF_ALS_RANGE_LOW_LUX;
- int ret;
-
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_ALS_RANGE_MASK, val);
- if (ret < 0) {
- dev_err(dev, "%s(): Error %d setting the ALS scale\n", __func__,
- ret);
- return ret;
- }
-
- chip->lux_scale = lux_scale;
-
- return ret;
-}
-
-static int isl29028_set_als_ir_mode(struct isl29028_chip *chip,
- enum isl29028_als_ir_mode mode)
-{
- int ret;
-
- if (chip->als_ir_mode == mode)
- return 0;
-
- ret = isl29028_set_als_scale(chip, chip->lux_scale);
- if (ret < 0)
- return ret;
-
- switch (mode) {
- case ISL29028_MODE_ALS:
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_ALS_IR_MODE_MASK,
- ISL29028_CONF_ALS_IR_MODE_ALS);
- if (ret < 0)
- return ret;
-
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_ALS_RANGE_MASK,
- ISL29028_CONF_ALS_RANGE_HIGH_LUX);
- break;
- case ISL29028_MODE_IR:
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_ALS_IR_MODE_MASK,
- ISL29028_CONF_ALS_IR_MODE_IR);
- break;
- case ISL29028_MODE_NONE:
- return regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_ALS_EN_MASK,
- ISL29028_CONF_ALS_DIS);
- }
-
- if (ret < 0)
- return ret;
-
- /* Enable the ALS/IR */
- ret = regmap_update_bits(chip->regmap, ISL29028_REG_CONFIGURE,
- ISL29028_CONF_ALS_EN_MASK,
- ISL29028_CONF_ALS_EN);
- if (ret < 0)
- return ret;
-
- /* Need to wait for conversion time if ALS/IR mode enabled */
- msleep(ISL29028_CONV_TIME_MS);
-
- chip->als_ir_mode = mode;
-
- return 0;
-}
-
-static int isl29028_read_als_ir(struct isl29028_chip *chip, int *als_ir)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- unsigned int lsb;
- unsigned int msb;
- int ret;
-
- ret = regmap_read(chip->regmap, ISL29028_REG_ALSIR_L, &lsb);
- if (ret < 0) {
- dev_err(dev,
- "%s(): Error %d reading register ALSIR_L\n",
- __func__, ret);
- return ret;
- }
-
- ret = regmap_read(chip->regmap, ISL29028_REG_ALSIR_U, &msb);
- if (ret < 0) {
- dev_err(dev,
- "%s(): Error %d reading register ALSIR_U\n",
- __func__, ret);
- return ret;
- }
-
- *als_ir = ((msb & 0xF) << 8) | (lsb & 0xFF);
-
- return 0;
-}
-
-static int isl29028_read_proxim(struct isl29028_chip *chip, int *prox)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- unsigned int data;
- int ret;
-
- if (!chip->enable_prox) {
- ret = isl29028_enable_proximity(chip);
- if (ret < 0)
- return ret;
-
- chip->enable_prox = true;
- }
-
- ret = regmap_read(chip->regmap, ISL29028_REG_PROX_DATA, &data);
- if (ret < 0) {
- dev_err(dev, "%s(): Error %d reading register PROX_DATA\n",
- __func__, ret);
- return ret;
- }
-
- *prox = data;
-
- return 0;
-}
-
-static int isl29028_als_get(struct isl29028_chip *chip, int *als_data)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- int ret;
- int als_ir_data;
-
- ret = isl29028_set_als_ir_mode(chip, ISL29028_MODE_ALS);
- if (ret < 0) {
- dev_err(dev, "%s(): Error %d enabling ALS mode\n", __func__,
- ret);
- return ret;
- }
-
- ret = isl29028_read_als_ir(chip, &als_ir_data);
- if (ret < 0)
- return ret;
-
- /*
- * convert als data count to lux.
- * if lux_scale = 125, lux = count * 0.031
- * if lux_scale = 2000, lux = count * 0.49
- */
- if (chip->lux_scale == 125)
- als_ir_data = (als_ir_data * 31) / 1000;
- else
- als_ir_data = (als_ir_data * 49) / 100;
-
- *als_data = als_ir_data;
-
- return 0;
-}
-
-static int isl29028_ir_get(struct isl29028_chip *chip, int *ir_data)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- int ret;
-
- ret = isl29028_set_als_ir_mode(chip, ISL29028_MODE_IR);
- if (ret < 0) {
- dev_err(dev, "%s(): Error %d enabling IR mode\n", __func__,
- ret);
- return ret;
- }
-
- return isl29028_read_als_ir(chip, ir_data);
-}
-
-static int isl29028_set_pm_runtime_busy(struct isl29028_chip *chip, bool on)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- int ret;
-
- if (on) {
- ret = pm_runtime_get_sync(dev);
- if (ret < 0)
- pm_runtime_put_noidle(dev);
- } else {
- pm_runtime_mark_last_busy(dev);
- ret = pm_runtime_put_autosuspend(dev);
- }
-
- return ret;
-}
-
-/* Channel IO */
-static int isl29028_write_raw(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan,
- int val, int val2, long mask)
-{
- struct isl29028_chip *chip = iio_priv(indio_dev);
- struct device *dev = regmap_get_device(chip->regmap);
- int ret;
-
- ret = isl29028_set_pm_runtime_busy(chip, true);
- if (ret < 0)
- return ret;
-
- mutex_lock(&chip->lock);
-
- ret = -EINVAL;
- switch (chan->type) {
- case IIO_PROXIMITY:
- if (mask != IIO_CHAN_INFO_SAMP_FREQ) {
- dev_err(dev,
- "%s(): proximity: Mask value 0x%08lx is not supported\n",
- __func__, mask);
- break;
- }
-
- if (val < 1 || val > 100) {
- dev_err(dev,
- "%s(): proximity: Sampling frequency %d is not in the range [1:100]\n",
- __func__, val);
- break;
- }
-
- ret = isl29028_set_proxim_sampling(chip, val);
- break;
- case IIO_LIGHT:
- if (mask != IIO_CHAN_INFO_SCALE) {
- dev_err(dev,
- "%s(): light: Mask value 0x%08lx is not supported\n",
- __func__, mask);
- break;
- }
-
- if (val != 125 && val != 2000) {
- dev_err(dev,
- "%s(): light: Lux scale %d is not in the set {125, 2000}\n",
- __func__, val);
- break;
- }
-
- ret = isl29028_set_als_scale(chip, val);
- break;
- default:
- dev_err(dev, "%s(): Unsupported channel type %x\n",
- __func__, chan->type);
- break;
- }
-
- mutex_unlock(&chip->lock);
-
- if (ret < 0)
- return ret;
-
- ret = isl29028_set_pm_runtime_busy(chip, false);
- if (ret < 0)
- return ret;
-
- return ret;
-}
-
-static int isl29028_read_raw(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan,
- int *val, int *val2, long mask)
-{
- struct isl29028_chip *chip = iio_priv(indio_dev);
- struct device *dev = regmap_get_device(chip->regmap);
- int ret, pm_ret;
-
- ret = isl29028_set_pm_runtime_busy(chip, true);
- if (ret < 0)
- return ret;
-
- mutex_lock(&chip->lock);
-
- ret = -EINVAL;
- switch (mask) {
- case IIO_CHAN_INFO_RAW:
- case IIO_CHAN_INFO_PROCESSED:
- switch (chan->type) {
- case IIO_LIGHT:
- ret = isl29028_als_get(chip, val);
- break;
- case IIO_INTENSITY:
- ret = isl29028_ir_get(chip, val);
- break;
- case IIO_PROXIMITY:
- ret = isl29028_read_proxim(chip, val);
- break;
- default:
- break;
- }
-
- if (ret < 0)
- break;
-
- ret = IIO_VAL_INT;
- break;
- case IIO_CHAN_INFO_SAMP_FREQ:
- if (chan->type != IIO_PROXIMITY)
- break;
-
- *val = chip->prox_sampling;
- ret = IIO_VAL_INT;
- break;
- case IIO_CHAN_INFO_SCALE:
- if (chan->type != IIO_LIGHT)
- break;
- *val = chip->lux_scale;
- ret = IIO_VAL_INT;
- break;
- default:
- dev_err(dev, "%s(): mask value 0x%08lx is not supported\n",
- __func__, mask);
- break;
- }
-
- mutex_unlock(&chip->lock);
-
- if (ret < 0)
- return ret;
-
- /**
- * Preserve the ret variable if the call to
- * isl29028_set_pm_runtime_busy() is successful so the reading
- * (if applicable) is returned to user space.
- */
- pm_ret = isl29028_set_pm_runtime_busy(chip, false);
- if (pm_ret < 0)
- return pm_ret;
-
- return ret;
-}
-
-static IIO_CONST_ATTR(in_proximity_sampling_frequency_available,
- "1 3 5 10 13 20 83 100");
-static IIO_CONST_ATTR(in_illuminance_scale_available, "125 2000");
-
-#define ISL29028_CONST_ATTR(name) (&iio_const_attr_##name.dev_attr.attr)
-static struct attribute *isl29028_attributes[] = {
- ISL29028_CONST_ATTR(in_proximity_sampling_frequency_available),
- ISL29028_CONST_ATTR(in_illuminance_scale_available),
- NULL,
-};
-
-static const struct attribute_group isl29108_group = {
- .attrs = isl29028_attributes,
-};
-
-static const struct iio_chan_spec isl29028_channels[] = {
- {
- .type = IIO_LIGHT,
- .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
- BIT(IIO_CHAN_INFO_SCALE),
- }, {
- .type = IIO_INTENSITY,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
- }, {
- .type = IIO_PROXIMITY,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_SAMP_FREQ),
- }
-};
-
-static const struct iio_info isl29028_info = {
- .attrs = &isl29108_group,
- .driver_module = THIS_MODULE,
- .read_raw = isl29028_read_raw,
- .write_raw = isl29028_write_raw,
-};
-
-static int isl29028_clear_configure_reg(struct isl29028_chip *chip)
-{
- struct device *dev = regmap_get_device(chip->regmap);
- int ret;
-
- ret = regmap_write(chip->regmap, ISL29028_REG_CONFIGURE, 0x0);
- if (ret < 0)
- dev_err(dev, "%s(): Error %d clearing the CONFIGURE register\n",
- __func__, ret);
-
- chip->als_ir_mode = ISL29028_MODE_NONE;
- chip->enable_prox = false;
-
- return ret;
-}
-
-static bool isl29028_is_volatile_reg(struct device *dev, unsigned int reg)
-{
- switch (reg) {
- case ISL29028_REG_INTERRUPT:
- case ISL29028_REG_PROX_DATA:
- case ISL29028_REG_ALSIR_L:
- case ISL29028_REG_ALSIR_U:
- return true;
- default:
- return false;
- }
-}
-
-static const struct regmap_config isl29028_regmap_config = {
- .reg_bits = 8,
- .val_bits = 8,
- .volatile_reg = isl29028_is_volatile_reg,
- .max_register = ISL29028_NUM_REGS - 1,
- .num_reg_defaults_raw = ISL29028_NUM_REGS,
- .cache_type = REGCACHE_RBTREE,
-};
-
-static int isl29028_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct isl29028_chip *chip;
- struct iio_dev *indio_dev;
- int ret;
-
- indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
- if (!indio_dev)
- return -ENOMEM;
-
- chip = iio_priv(indio_dev);
-
- i2c_set_clientdata(client, indio_dev);
- mutex_init(&chip->lock);
-
- chip->regmap = devm_regmap_init_i2c(client, &isl29028_regmap_config);
- if (IS_ERR(chip->regmap)) {
- ret = PTR_ERR(chip->regmap);
- dev_err(&client->dev, "%s: Error %d initializing regmap\n",
- __func__, ret);
- return ret;
- }
-
- chip->enable_prox = false;
- chip->prox_sampling = 20;
- chip->lux_scale = 2000;
-
- ret = regmap_write(chip->regmap, ISL29028_REG_TEST1_MODE, 0x0);
- if (ret < 0) {
- dev_err(&client->dev,
- "%s(): Error %d writing to TEST1_MODE register\n",
- __func__, ret);
- return ret;
- }
-
- ret = regmap_write(chip->regmap, ISL29028_REG_TEST2_MODE, 0x0);
- if (ret < 0) {
- dev_err(&client->dev,
- "%s(): Error %d writing to TEST2_MODE register\n",
- __func__, ret);
- return ret;
- }
-
- ret = isl29028_clear_configure_reg(chip);
- if (ret < 0)
- return ret;
-
- indio_dev->info = &isl29028_info;
- indio_dev->channels = isl29028_channels;
- indio_dev->num_channels = ARRAY_SIZE(isl29028_channels);
- indio_dev->name = id->name;
- indio_dev->dev.parent = &client->dev;
- indio_dev->modes = INDIO_DIRECT_MODE;
-
- pm_runtime_enable(&client->dev);
- pm_runtime_set_autosuspend_delay(&client->dev,
- ISL29028_POWER_OFF_DELAY_MS);
- pm_runtime_use_autosuspend(&client->dev);
-
- ret = devm_iio_device_register(indio_dev->dev.parent, indio_dev);
- if (ret < 0) {
- dev_err(&client->dev,
- "%s(): iio registration failed with error %d\n",
- __func__, ret);
- return ret;
- }
-
- return 0;
-}
-
-static int isl29028_remove(struct i2c_client *client)
-{
- struct iio_dev *indio_dev = i2c_get_clientdata(client);
- struct isl29028_chip *chip = iio_priv(indio_dev);
-
- iio_device_unregister(indio_dev);
-
- pm_runtime_disable(&client->dev);
- pm_runtime_set_suspended(&client->dev);
- pm_runtime_put_noidle(&client->dev);
-
- return isl29028_clear_configure_reg(chip);
-}
-
-static int __maybe_unused isl29028_suspend(struct device *dev)
-{
- struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
- struct isl29028_chip *chip = iio_priv(indio_dev);
- int ret;
-
- mutex_lock(&chip->lock);
-
- ret = isl29028_clear_configure_reg(chip);
-
- mutex_unlock(&chip->lock);
-
- return ret;
-}
-
-static int __maybe_unused isl29028_resume(struct device *dev)
-{
- /**
- * The specific component (ALS/IR or proximity) will enable itself as
- * needed the next time that the user requests a reading. This is done
- * above in isl29028_set_als_ir_mode() and isl29028_enable_proximity().
- */
- return 0;
-}
-
-static const struct dev_pm_ops isl29028_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
- pm_runtime_force_resume)
- SET_RUNTIME_PM_OPS(isl29028_suspend, isl29028_resume, NULL)
-};
-
-static const struct i2c_device_id isl29028_id[] = {
- {"isl29028", 0},
- {}
-};
-MODULE_DEVICE_TABLE(i2c, isl29028_id);
-
-static const struct of_device_id isl29028_of_match[] = {
- { .compatible = "isl,isl29028", }, /* for backward compat., don't use */
- { .compatible = "isil,isl29028", },
- { },
-};
-MODULE_DEVICE_TABLE(of, isl29028_of_match);
-
-static struct i2c_driver isl29028_driver = {
- .driver = {
- .name = "isl29028",
- .pm = &isl29028_pm_ops,
- .of_match_table = isl29028_of_match,
- },
- .probe = isl29028_probe,
- .remove = isl29028_remove,
- .id_table = isl29028_id,
-};
-
-module_i2c_driver(isl29028_driver);
-
-MODULE_DESCRIPTION("ISL29028 Ambient Light and Proximity Sensor driver");
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
--- /dev/null
+/*
+ * Device driver for monitoring ambient light intensity in (lux)
+ * and proximity detection (prox) within the TAOS TSL2X7X family of devices.
+ *
+ * Copyright (c) 2012, TAOS Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/iio/events.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include "tsl2x7x.h"
+
+/* Cal defs*/
+#define PROX_STAT_CAL 0
+#define PROX_STAT_SAMP 1
+#define MAX_SAMPLES_CAL 200
+
+/* TSL2X7X Device ID */
+#define TRITON_ID 0x00
+#define SWORDFISH_ID 0x30
+#define HALIBUT_ID 0x20
+
+/* Lux calculation constants */
+#define TSL2X7X_LUX_CALC_OVER_FLOW 65535
+
+/* TAOS Register definitions - note:
+ * depending on device, some of these register are not used and the
+ * register address is benign.
+ */
+/* 2X7X register offsets */
+#define TSL2X7X_MAX_CONFIG_REG 16
+
+/* Device Registers and Masks */
+#define TSL2X7X_CNTRL 0x00
+#define TSL2X7X_ALS_TIME 0X01
+#define TSL2X7X_PRX_TIME 0x02
+#define TSL2X7X_WAIT_TIME 0x03
+#define TSL2X7X_ALS_MINTHRESHLO 0X04
+#define TSL2X7X_ALS_MINTHRESHHI 0X05
+#define TSL2X7X_ALS_MAXTHRESHLO 0X06
+#define TSL2X7X_ALS_MAXTHRESHHI 0X07
+#define TSL2X7X_PRX_MINTHRESHLO 0X08
+#define TSL2X7X_PRX_MINTHRESHHI 0X09
+#define TSL2X7X_PRX_MAXTHRESHLO 0X0A
+#define TSL2X7X_PRX_MAXTHRESHHI 0X0B
+#define TSL2X7X_PERSISTENCE 0x0C
+#define TSL2X7X_PRX_CONFIG 0x0D
+#define TSL2X7X_PRX_COUNT 0x0E
+#define TSL2X7X_GAIN 0x0F
+#define TSL2X7X_NOTUSED 0x10
+#define TSL2X7X_REVID 0x11
+#define TSL2X7X_CHIPID 0x12
+#define TSL2X7X_STATUS 0x13
+#define TSL2X7X_ALS_CHAN0LO 0x14
+#define TSL2X7X_ALS_CHAN0HI 0x15
+#define TSL2X7X_ALS_CHAN1LO 0x16
+#define TSL2X7X_ALS_CHAN1HI 0x17
+#define TSL2X7X_PRX_LO 0x18
+#define TSL2X7X_PRX_HI 0x19
+
+/* tsl2X7X cmd reg masks */
+#define TSL2X7X_CMD_REG 0x80
+#define TSL2X7X_CMD_SPL_FN 0x60
+
+#define TSL2X7X_CMD_PROX_INT_CLR 0X05
+#define TSL2X7X_CMD_ALS_INT_CLR 0x06
+#define TSL2X7X_CMD_PROXALS_INT_CLR 0X07
+
+/* tsl2X7X cntrl reg masks */
+#define TSL2X7X_CNTL_ADC_ENBL 0x02
+#define TSL2X7X_CNTL_PWR_ON 0x01
+
+/* tsl2X7X status reg masks */
+#define TSL2X7X_STA_ADC_VALID 0x01
+#define TSL2X7X_STA_PRX_VALID 0x02
+#define TSL2X7X_STA_ADC_PRX_VALID (TSL2X7X_STA_ADC_VALID |\
+ TSL2X7X_STA_PRX_VALID)
+#define TSL2X7X_STA_ALS_INTR 0x10
+#define TSL2X7X_STA_PRX_INTR 0x20
+
+/* tsl2X7X cntrl reg masks */
+#define TSL2X7X_CNTL_REG_CLEAR 0x00
+#define TSL2X7X_CNTL_PROX_INT_ENBL 0X20
+#define TSL2X7X_CNTL_ALS_INT_ENBL 0X10
+#define TSL2X7X_CNTL_WAIT_TMR_ENBL 0X08
+#define TSL2X7X_CNTL_PROX_DET_ENBL 0X04
+#define TSL2X7X_CNTL_PWRON 0x01
+#define TSL2X7X_CNTL_ALSPON_ENBL 0x03
+#define TSL2X7X_CNTL_INTALSPON_ENBL 0x13
+#define TSL2X7X_CNTL_PROXPON_ENBL 0x0F
+#define TSL2X7X_CNTL_INTPROXPON_ENBL 0x2F
+
+/*Prox diode to use */
+#define TSL2X7X_DIODE0 0x10
+#define TSL2X7X_DIODE1 0x20
+#define TSL2X7X_DIODE_BOTH 0x30
+
+/* LED Power */
+#define TSL2X7X_mA100 0x00
+#define TSL2X7X_mA50 0x40
+#define TSL2X7X_mA25 0x80
+#define TSL2X7X_mA13 0xD0
+#define TSL2X7X_MAX_TIMER_CNT (0xFF)
+
+#define TSL2X7X_MIN_ITIME 3
+
+/* TAOS txx2x7x Device family members */
+enum {
+ tsl2571,
+ tsl2671,
+ tmd2671,
+ tsl2771,
+ tmd2771,
+ tsl2572,
+ tsl2672,
+ tmd2672,
+ tsl2772,
+ tmd2772
+};
+
+enum {
+ TSL2X7X_CHIP_UNKNOWN = 0,
+ TSL2X7X_CHIP_WORKING = 1,
+ TSL2X7X_CHIP_SUSPENDED = 2
+};
+
+struct tsl2x7x_parse_result {
+ int integer;
+ int fract;
+};
+
+/* Per-device data */
+struct tsl2x7x_als_info {
+ u16 als_ch0;
+ u16 als_ch1;
+ u16 lux;
+};
+
+struct tsl2x7x_prox_stat {
+ int min;
+ int max;
+ int mean;
+ unsigned long stddev;
+};
+
+struct tsl2x7x_chip_info {
+ int chan_table_elements;
+ struct iio_chan_spec channel[4];
+ const struct iio_info *info;
+};
+
+struct tsl2X7X_chip {
+ kernel_ulong_t id;
+ struct mutex prox_mutex;
+ struct mutex als_mutex;
+ struct i2c_client *client;
+ u16 prox_data;
+ struct tsl2x7x_als_info als_cur_info;
+ struct tsl2x7x_settings tsl2x7x_settings;
+ struct tsl2X7X_platform_data *pdata;
+ int als_time_scale;
+ int als_saturation;
+ int tsl2x7x_chip_status;
+ u8 tsl2x7x_config[TSL2X7X_MAX_CONFIG_REG];
+ const struct tsl2x7x_chip_info *chip_info;
+ const struct iio_info *info;
+ s64 event_timestamp;
+ /*
+ * This structure is intentionally large to accommodate
+ * updates via sysfs.
+ * Sized to 9 = max 8 segments + 1 termination segment
+ */
+ struct tsl2x7x_lux tsl2x7x_device_lux[TSL2X7X_MAX_LUX_TABLE_SIZE];
+};
+
+/* Different devices require different coefficents */
+static const struct tsl2x7x_lux tsl2x71_lux_table[] = {
+ { 14461, 611, 1211 },
+ { 18540, 352, 623 },
+ { 0, 0, 0 },
+};
+
+static const struct tsl2x7x_lux tmd2x71_lux_table[] = {
+ { 11635, 115, 256 },
+ { 15536, 87, 179 },
+ { 0, 0, 0 },
+};
+
+static const struct tsl2x7x_lux tsl2x72_lux_table[] = {
+ { 14013, 466, 917 },
+ { 18222, 310, 552 },
+ { 0, 0, 0 },
+};
+
+static const struct tsl2x7x_lux tmd2x72_lux_table[] = {
+ { 13218, 130, 262 },
+ { 17592, 92, 169 },
+ { 0, 0, 0 },
+};
+
+static const struct tsl2x7x_lux *tsl2x7x_default_lux_table_group[] = {
+ [tsl2571] = tsl2x71_lux_table,
+ [tsl2671] = tsl2x71_lux_table,
+ [tmd2671] = tmd2x71_lux_table,
+ [tsl2771] = tsl2x71_lux_table,
+ [tmd2771] = tmd2x71_lux_table,
+ [tsl2572] = tsl2x72_lux_table,
+ [tsl2672] = tsl2x72_lux_table,
+ [tmd2672] = tmd2x72_lux_table,
+ [tsl2772] = tsl2x72_lux_table,
+ [tmd2772] = tmd2x72_lux_table,
+};
+
+static const struct tsl2x7x_settings tsl2x7x_default_settings = {
+ .als_time = 219, /* 101 ms */
+ .als_gain = 0,
+ .prx_time = 254, /* 5.4 ms */
+ .prox_gain = 1,
+ .wait_time = 245,
+ .prox_config = 0,
+ .als_gain_trim = 1000,
+ .als_cal_target = 150,
+ .als_thresh_low = 200,
+ .als_thresh_high = 256,
+ .persistence = 255,
+ .interrupts_en = 0,
+ .prox_thres_low = 0,
+ .prox_thres_high = 512,
+ .prox_max_samples_cal = 30,
+ .prox_pulse_count = 8
+};
+
+static const s16 tsl2X7X_als_gainadj[] = {
+ 1,
+ 8,
+ 16,
+ 120
+};
+
+static const s16 tsl2X7X_prx_gainadj[] = {
+ 1,
+ 2,
+ 4,
+ 8
+};
+
+/* Channel variations */
+enum {
+ ALS,
+ PRX,
+ ALSPRX,
+ PRX2,
+ ALSPRX2,
+};
+
+static const u8 device_channel_config[] = {
+ ALS,
+ PRX,
+ PRX,
+ ALSPRX,
+ ALSPRX,
+ ALS,
+ PRX2,
+ PRX2,
+ ALSPRX2,
+ ALSPRX2
+};
+
+/**
+ * tsl2x7x_i2c_read() - Read a byte from a register.
+ * @client: i2c client
+ * @reg: device register to read from
+ * @*val: pointer to location to store register contents.
+ *
+ */
+static int
+tsl2x7x_i2c_read(struct i2c_client *client, u8 reg, u8 *val)
+{
+ int ret;
+
+ /* select register to write */
+ ret = i2c_smbus_write_byte(client, (TSL2X7X_CMD_REG | reg));
+ if (ret < 0) {
+ dev_err(&client->dev, "failed to write register %x\n", reg);
+ return ret;
+ }
+
+ /* read the data */
+ ret = i2c_smbus_read_byte(client);
+ if (ret >= 0)
+ *val = (u8)ret;
+ else
+ dev_err(&client->dev, "failed to read register %x\n", reg);
+
+ return ret;
+}
+
+/**
+ * tsl2x7x_get_lux() - Reads and calculates current lux value.
+ * @indio_dev: pointer to IIO device
+ *
+ * The raw ch0 and ch1 values of the ambient light sensed in the last
+ * integration cycle are read from the device.
+ * Time scale factor array values are adjusted based on the integration time.
+ * The raw values are multiplied by a scale factor, and device gain is obtained
+ * using gain index. Limit checks are done next, then the ratio of a multiple
+ * of ch1 value, to the ch0 value, is calculated. Array tsl2x7x_device_lux[]
+ * is then scanned to find the first ratio value that is just above the ratio
+ * we just calculated. The ch0 and ch1 multiplier constants in the array are
+ * then used along with the time scale factor array values, to calculate the
+ * lux.
+ */
+static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
+{
+ u16 ch0, ch1; /* separated ch0/ch1 data from device */
+ u32 lux; /* raw lux calculated from device data */
+ u64 lux64;
+ u32 ratio;
+ u8 buf[4];
+ struct tsl2x7x_lux *p;
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ int i, ret;
+ u32 ch0lux = 0;
+ u32 ch1lux = 0;
+
+ if (mutex_trylock(&chip->als_mutex) == 0)
+ return chip->als_cur_info.lux; /* busy, so return LAST VALUE */
+
+ if (chip->tsl2x7x_chip_status != TSL2X7X_CHIP_WORKING) {
+ /* device is not enabled */
+ dev_err(&chip->client->dev, "%s: device is not enabled\n",
+ __func__);
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+
+ ret = tsl2x7x_i2c_read(chip->client,
+ (TSL2X7X_CMD_REG | TSL2X7X_STATUS), &buf[0]);
+ if (ret < 0) {
+ dev_err(&chip->client->dev,
+ "%s: Failed to read STATUS Reg\n", __func__);
+ goto out_unlock;
+ }
+ /* is data new & valid */
+ if (!(buf[0] & TSL2X7X_STA_ADC_VALID)) {
+ dev_err(&chip->client->dev,
+ "%s: data not valid yet\n", __func__);
+ ret = chip->als_cur_info.lux; /* return LAST VALUE */
+ goto out_unlock;
+ }
+
+ for (i = 0; i < 4; i++) {
+ ret = tsl2x7x_i2c_read(chip->client,
+ (TSL2X7X_CMD_REG |
+ (TSL2X7X_ALS_CHAN0LO + i)), &buf[i]);
+ if (ret < 0) {
+ dev_err(&chip->client->dev,
+ "failed to read. err=%x\n", ret);
+ goto out_unlock;
+ }
+ }
+
+ /* clear any existing interrupt status */
+ ret = i2c_smbus_write_byte(chip->client,
+ (TSL2X7X_CMD_REG |
+ TSL2X7X_CMD_SPL_FN |
+ TSL2X7X_CMD_ALS_INT_CLR));
+ if (ret < 0) {
+ dev_err(&chip->client->dev,
+ "i2c_write_command failed - err = %d\n", ret);
+ goto out_unlock; /* have no data, so return failure */
+ }
+
+ /* extract ALS/lux data */
+ ch0 = le16_to_cpup((const __le16 *)&buf[0]);
+ ch1 = le16_to_cpup((const __le16 *)&buf[2]);
+
+ chip->als_cur_info.als_ch0 = ch0;
+ chip->als_cur_info.als_ch1 = ch1;
+
+ if ((ch0 >= chip->als_saturation) || (ch1 >= chip->als_saturation)) {
+ lux = TSL2X7X_LUX_CALC_OVER_FLOW;
+ goto return_max;
+ }
+
+ if (!ch0) {
+ /* have no data, so return LAST VALUE */
+ ret = chip->als_cur_info.lux;
+ goto out_unlock;
+ }
+ /* calculate ratio */
+ ratio = (ch1 << 15) / ch0;
+ /* convert to unscaled lux using the pointer to the table */
+ p = (struct tsl2x7x_lux *)chip->tsl2x7x_device_lux;
+ while (p->ratio != 0 && p->ratio < ratio)
+ p++;
+
+ if (p->ratio == 0) {
+ lux = 0;
+ } else {
+ ch0lux = DIV_ROUND_UP(ch0 * p->ch0,
+ tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain]);
+ ch1lux = DIV_ROUND_UP(ch1 * p->ch1,
+ tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain]);
+ lux = ch0lux - ch1lux;
+ }
+
+ /* note: lux is 31 bit max at this point */
+ if (ch1lux > ch0lux) {
+ dev_dbg(&chip->client->dev, "ch1lux > ch0lux-return last value\n");
+ ret = chip->als_cur_info.lux;
+ goto out_unlock;
+ }
+
+ /* adjust for active time scale */
+ if (chip->als_time_scale == 0)
+ lux = 0;
+ else
+ lux = (lux + (chip->als_time_scale >> 1)) /
+ chip->als_time_scale;
+
+ /* adjust for active gain scale
+ * The tsl2x7x_device_lux tables have a factor of 256 built-in.
+ * User-specified gain provides a multiplier.
+ * Apply user-specified gain before shifting right to retain precision.
+ * Use 64 bits to avoid overflow on multiplication.
+ * Then go back to 32 bits before division to avoid using div_u64().
+ */
+
+ lux64 = lux;
+ lux64 = lux64 * chip->tsl2x7x_settings.als_gain_trim;
+ lux64 >>= 8;
+ lux = lux64;
+ lux = (lux + 500) / 1000;
+
+ if (lux > TSL2X7X_LUX_CALC_OVER_FLOW) /* check for overflow */
+ lux = TSL2X7X_LUX_CALC_OVER_FLOW;
+
+ /* Update the structure with the latest lux. */
+return_max:
+ chip->als_cur_info.lux = lux;
+ ret = lux;
+
+out_unlock:
+ mutex_unlock(&chip->als_mutex);
+
+ return ret;
+}
+
+/**
+ * tsl2x7x_get_prox() - Reads proximity data registers and updates
+ * chip->prox_data.
+ *
+ * @indio_dev: pointer to IIO device
+ */
+static int tsl2x7x_get_prox(struct iio_dev *indio_dev)
+{
+ int i;
+ int ret;
+ u8 status;
+ u8 chdata[2];
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+
+ if (mutex_trylock(&chip->prox_mutex) == 0) {
+ dev_err(&chip->client->dev,
+ "%s: Can't get prox mutex\n", __func__);
+ return -EBUSY;
+ }
+
+ ret = tsl2x7x_i2c_read(chip->client,
+ (TSL2X7X_CMD_REG | TSL2X7X_STATUS), &status);
+ if (ret < 0) {
+ dev_err(&chip->client->dev, "i2c err=%d\n", ret);
+ goto prox_poll_err;
+ }
+
+ switch (chip->id) {
+ case tsl2571:
+ case tsl2671:
+ case tmd2671:
+ case tsl2771:
+ case tmd2771:
+ if (!(status & TSL2X7X_STA_ADC_VALID))
+ goto prox_poll_err;
+ break;
+ case tsl2572:
+ case tsl2672:
+ case tmd2672:
+ case tsl2772:
+ case tmd2772:
+ if (!(status & TSL2X7X_STA_PRX_VALID))
+ goto prox_poll_err;
+ break;
+ }
+
+ for (i = 0; i < 2; i++) {
+ ret = tsl2x7x_i2c_read(chip->client,
+ (TSL2X7X_CMD_REG |
+ (TSL2X7X_PRX_LO + i)), &chdata[i]);
+ if (ret < 0)
+ goto prox_poll_err;
+ }
+
+ chip->prox_data =
+ le16_to_cpup((const __le16 *)&chdata[0]);
+
+prox_poll_err:
+
+ mutex_unlock(&chip->prox_mutex);
+
+ return chip->prox_data;
+}
+
+/**
+ * tsl2x7x_defaults() - Populates the device nominal operating parameters
+ * with those provided by a 'platform' data struct or
+ * with prefined defaults.
+ *
+ * @chip: pointer to device structure.
+ */
+static void tsl2x7x_defaults(struct tsl2X7X_chip *chip)
+{
+ /* If Operational settings defined elsewhere.. */
+ if (chip->pdata && chip->pdata->platform_default_settings)
+ memcpy(&chip->tsl2x7x_settings,
+ chip->pdata->platform_default_settings,
+ sizeof(tsl2x7x_default_settings));
+ else
+ memcpy(&chip->tsl2x7x_settings,
+ &tsl2x7x_default_settings,
+ sizeof(tsl2x7x_default_settings));
+
+ /* Load up the proper lux table. */
+ if (chip->pdata && chip->pdata->platform_lux_table[0].ratio != 0)
+ memcpy(chip->tsl2x7x_device_lux,
+ chip->pdata->platform_lux_table,
+ sizeof(chip->pdata->platform_lux_table));
+ else
+ memcpy(chip->tsl2x7x_device_lux,
+ (struct tsl2x7x_lux *)tsl2x7x_default_lux_table_group[chip->id],
+ MAX_DEFAULT_TABLE_BYTES);
+}
+
+/**
+ * tsl2x7x_als_calibrate() - Obtain single reading and calculate
+ * the als_gain_trim.
+ *
+ * @indio_dev: pointer to IIO device
+ */
+static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev)
+{
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ u8 reg_val;
+ int gain_trim_val;
+ int ret;
+ int lux_val;
+
+ ret = i2c_smbus_write_byte(chip->client,
+ (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
+ if (ret < 0) {
+ dev_err(&chip->client->dev,
+ "failed to write CNTRL register, ret=%d\n", ret);
+ return ret;
+ }
+
+ reg_val = i2c_smbus_read_byte(chip->client);
+ if ((reg_val & (TSL2X7X_CNTL_ADC_ENBL | TSL2X7X_CNTL_PWR_ON))
+ != (TSL2X7X_CNTL_ADC_ENBL | TSL2X7X_CNTL_PWR_ON)) {
+ dev_err(&chip->client->dev,
+ "%s: failed: ADC not enabled\n", __func__);
+ return -1;
+ }
+
+ ret = i2c_smbus_write_byte(chip->client,
+ (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
+ if (ret < 0) {
+ dev_err(&chip->client->dev,
+ "failed to write ctrl reg: ret=%d\n", ret);
+ return ret;
+ }
+
+ reg_val = i2c_smbus_read_byte(chip->client);
+ if ((reg_val & TSL2X7X_STA_ADC_VALID) != TSL2X7X_STA_ADC_VALID) {
+ dev_err(&chip->client->dev,
+ "%s: failed: STATUS - ADC not valid.\n", __func__);
+ return -ENODATA;
+ }
+
+ lux_val = tsl2x7x_get_lux(indio_dev);
+ if (lux_val < 0) {
+ dev_err(&chip->client->dev,
+ "%s: failed to get lux\n", __func__);
+ return lux_val;
+ }
+
+ gain_trim_val = ((chip->tsl2x7x_settings.als_cal_target)
+ * chip->tsl2x7x_settings.als_gain_trim) / lux_val;
+ if ((gain_trim_val < 250) || (gain_trim_val > 4000))
+ return -ERANGE;
+
+ chip->tsl2x7x_settings.als_gain_trim = gain_trim_val;
+ dev_info(&chip->client->dev,
+ "%s als_calibrate completed\n", chip->client->name);
+
+ return (int)gain_trim_val;
+}
+
+static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
+{
+ int i;
+ int ret = 0;
+ u8 *dev_reg;
+ u8 utmp;
+ int als_count;
+ int als_time;
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ u8 reg_val = 0;
+
+ if (chip->pdata && chip->pdata->power_on)
+ chip->pdata->power_on(indio_dev);
+
+ /* Non calculated parameters */
+ chip->tsl2x7x_config[TSL2X7X_PRX_TIME] =
+ chip->tsl2x7x_settings.prx_time;
+ chip->tsl2x7x_config[TSL2X7X_WAIT_TIME] =
+ chip->tsl2x7x_settings.wait_time;
+ chip->tsl2x7x_config[TSL2X7X_PRX_CONFIG] =
+ chip->tsl2x7x_settings.prox_config;
+
+ chip->tsl2x7x_config[TSL2X7X_ALS_MINTHRESHLO] =
+ (chip->tsl2x7x_settings.als_thresh_low) & 0xFF;
+ chip->tsl2x7x_config[TSL2X7X_ALS_MINTHRESHHI] =
+ (chip->tsl2x7x_settings.als_thresh_low >> 8) & 0xFF;
+ chip->tsl2x7x_config[TSL2X7X_ALS_MAXTHRESHLO] =
+ (chip->tsl2x7x_settings.als_thresh_high) & 0xFF;
+ chip->tsl2x7x_config[TSL2X7X_ALS_MAXTHRESHHI] =
+ (chip->tsl2x7x_settings.als_thresh_high >> 8) & 0xFF;
+ chip->tsl2x7x_config[TSL2X7X_PERSISTENCE] =
+ chip->tsl2x7x_settings.persistence;
+
+ chip->tsl2x7x_config[TSL2X7X_PRX_COUNT] =
+ chip->tsl2x7x_settings.prox_pulse_count;
+ chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHLO] =
+ (chip->tsl2x7x_settings.prox_thres_low) & 0xFF;
+ chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHHI] =
+ (chip->tsl2x7x_settings.prox_thres_low >> 8) & 0xFF;
+ chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHLO] =
+ (chip->tsl2x7x_settings.prox_thres_high) & 0xFF;
+ chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHHI] =
+ (chip->tsl2x7x_settings.prox_thres_high >> 8) & 0xFF;
+
+ /* and make sure we're not already on */
+ if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
+ /* if forcing a register update - turn off, then on */
+ dev_info(&chip->client->dev, "device is already enabled\n");
+ return -EINVAL;
+ }
+
+ /* determine als integration register */
+ als_count = (chip->tsl2x7x_settings.als_time * 100 + 135) / 270;
+ if (!als_count)
+ als_count = 1; /* ensure at least one cycle */
+
+ /* convert back to time (encompasses overrides) */
+ als_time = (als_count * 27 + 5) / 10;
+ chip->tsl2x7x_config[TSL2X7X_ALS_TIME] = 256 - als_count;
+
+ /* Set the gain based on tsl2x7x_settings struct */
+ chip->tsl2x7x_config[TSL2X7X_GAIN] =
+ chip->tsl2x7x_settings.als_gain |
+ (TSL2X7X_mA100 | TSL2X7X_DIODE1)
+ | ((chip->tsl2x7x_settings.prox_gain) << 2);
+
+ /* set chip struct re scaling and saturation */
+ chip->als_saturation = als_count * 922; /* 90% of full scale */
+ chip->als_time_scale = (als_time + 25) / 50;
+
+ /*
+ * TSL2X7X Specific power-on / adc enable sequence
+ * Power on the device 1st.
+ */
+ utmp = TSL2X7X_CNTL_PWR_ON;
+ ret = i2c_smbus_write_byte_data(chip->client,
+ TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp);
+ if (ret < 0) {
+ dev_err(&chip->client->dev,
+ "%s: failed on CNTRL reg.\n", __func__);
+ return ret;
+ }
+
+ /*
+ * Use the following shadow copy for our delay before enabling ADC.
+ * Write all the registers.
+ */
+ for (i = 0, dev_reg = chip->tsl2x7x_config;
+ i < TSL2X7X_MAX_CONFIG_REG; i++) {
+ ret = i2c_smbus_write_byte_data(chip->client,
+ TSL2X7X_CMD_REG + i,
+ *dev_reg++);
+ if (ret < 0) {
+ dev_err(&chip->client->dev,
+ "failed on write to reg %d.\n", i);
+ return ret;
+ }
+ }
+
+ mdelay(3); /* Power-on settling time */
+
+ /*
+ * NOW enable the ADC
+ * initialize the desired mode of operation
+ */
+ utmp = TSL2X7X_CNTL_PWR_ON |
+ TSL2X7X_CNTL_ADC_ENBL |
+ TSL2X7X_CNTL_PROX_DET_ENBL;
+ ret = i2c_smbus_write_byte_data(chip->client,
+ TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp);
+ if (ret < 0) {
+ dev_err(&chip->client->dev,
+ "%s: failed on 2nd CTRL reg.\n", __func__);
+ return ret;
+ }
+
+ chip->tsl2x7x_chip_status = TSL2X7X_CHIP_WORKING;
+
+ if (chip->tsl2x7x_settings.interrupts_en != 0) {
+ dev_info(&chip->client->dev, "Setting Up Interrupt(s)\n");
+
+ reg_val = TSL2X7X_CNTL_PWR_ON | TSL2X7X_CNTL_ADC_ENBL;
+ if ((chip->tsl2x7x_settings.interrupts_en == 0x20) ||
+ (chip->tsl2x7x_settings.interrupts_en == 0x30))
+ reg_val |= TSL2X7X_CNTL_PROX_DET_ENBL;
+
+ reg_val |= chip->tsl2x7x_settings.interrupts_en;
+ ret = i2c_smbus_write_byte_data(chip->client,
+ (TSL2X7X_CMD_REG |
+ TSL2X7X_CNTRL), reg_val);
+ if (ret < 0)
+ dev_err(&chip->client->dev,
+ "%s: failed in tsl2x7x_IOCTL_INT_SET.\n",
+ __func__);
+
+ /* Clear out any initial interrupts */
+ ret = i2c_smbus_write_byte(chip->client,
+ TSL2X7X_CMD_REG |
+ TSL2X7X_CMD_SPL_FN |
+ TSL2X7X_CMD_PROXALS_INT_CLR);
+ if (ret < 0) {
+ dev_err(&chip->client->dev,
+ "%s: Failed to clear Int status\n",
+ __func__);
+ return ret;
+ }
+ }
+
+ return ret;
+}
+
+static int tsl2x7x_chip_off(struct iio_dev *indio_dev)
+{
+ int ret;
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+
+ /* turn device off */
+ chip->tsl2x7x_chip_status = TSL2X7X_CHIP_SUSPENDED;
+
+ ret = i2c_smbus_write_byte_data(chip->client,
+ TSL2X7X_CMD_REG | TSL2X7X_CNTRL, 0x00);
+
+ if (chip->pdata && chip->pdata->power_off)
+ chip->pdata->power_off(chip->client);
+
+ return ret;
+}
+
+/**
+ * tsl2x7x_invoke_change
+ * @indio_dev: pointer to IIO device
+ *
+ * Obtain and lock both ALS and PROX resources,
+ * determine and save device state (On/Off),
+ * cycle device to implement updated parameter,
+ * put device back into proper state, and unlock
+ * resource.
+ */
+static
+int tsl2x7x_invoke_change(struct iio_dev *indio_dev)
+{
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ int device_status = chip->tsl2x7x_chip_status;
+
+ mutex_lock(&chip->als_mutex);
+ mutex_lock(&chip->prox_mutex);
+
+ if (device_status == TSL2X7X_CHIP_WORKING)
+ tsl2x7x_chip_off(indio_dev);
+
+ tsl2x7x_chip_on(indio_dev);
+
+ if (device_status != TSL2X7X_CHIP_WORKING)
+ tsl2x7x_chip_off(indio_dev);
+
+ mutex_unlock(&chip->prox_mutex);
+ mutex_unlock(&chip->als_mutex);
+
+ return 0;
+}
+
+static
+void tsl2x7x_prox_calculate(int *data, int length,
+ struct tsl2x7x_prox_stat *statP)
+{
+ int i;
+ int sample_sum;
+ int tmp;
+
+ if (!length)
+ length = 1;
+
+ sample_sum = 0;
+ statP->min = INT_MAX;
+ statP->max = INT_MIN;
+ for (i = 0; i < length; i++) {
+ sample_sum += data[i];
+ statP->min = min(statP->min, data[i]);
+ statP->max = max(statP->max, data[i]);
+ }
+
+ statP->mean = sample_sum / length;
+ sample_sum = 0;
+ for (i = 0; i < length; i++) {
+ tmp = data[i] - statP->mean;
+ sample_sum += tmp * tmp;
+ }
+ statP->stddev = int_sqrt((long)sample_sum / length);
+}
+
+/**
+ * tsl2x7x_prox_cal() - Calculates std. and sets thresholds.
+ * @indio_dev: pointer to IIO device
+ *
+ * Calculates a standard deviation based on the samples,
+ * and sets the threshold accordingly.
+ */
+static void tsl2x7x_prox_cal(struct iio_dev *indio_dev)
+{
+ int prox_history[MAX_SAMPLES_CAL + 1];
+ int i;
+ struct tsl2x7x_prox_stat prox_stat_data[2];
+ struct tsl2x7x_prox_stat *calP;
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ u8 tmp_irq_settings;
+ u8 current_state = chip->tsl2x7x_chip_status;
+
+ if (chip->tsl2x7x_settings.prox_max_samples_cal > MAX_SAMPLES_CAL) {
+ dev_err(&chip->client->dev,
+ "max prox samples cal is too big: %d\n",
+ chip->tsl2x7x_settings.prox_max_samples_cal);
+ chip->tsl2x7x_settings.prox_max_samples_cal = MAX_SAMPLES_CAL;
+ }
+
+ /* have to stop to change settings */
+ tsl2x7x_chip_off(indio_dev);
+
+ /* Enable proximity detection save just in case prox not wanted yet*/
+ tmp_irq_settings = chip->tsl2x7x_settings.interrupts_en;
+ chip->tsl2x7x_settings.interrupts_en |= TSL2X7X_CNTL_PROX_INT_ENBL;
+
+ /*turn on device if not already on*/
+ tsl2x7x_chip_on(indio_dev);
+
+ /*gather the samples*/
+ for (i = 0; i < chip->tsl2x7x_settings.prox_max_samples_cal; i++) {
+ mdelay(15);
+ tsl2x7x_get_prox(indio_dev);
+ prox_history[i] = chip->prox_data;
+ dev_info(&chip->client->dev, "2 i=%d prox data= %d\n",
+ i, chip->prox_data);
+ }
+
+ tsl2x7x_chip_off(indio_dev);
+ calP = &prox_stat_data[PROX_STAT_CAL];
+ tsl2x7x_prox_calculate(prox_history,
+ chip->tsl2x7x_settings.prox_max_samples_cal,
+ calP);
+ chip->tsl2x7x_settings.prox_thres_high = (calP->max << 1) - calP->mean;
+
+ dev_info(&chip->client->dev, " cal min=%d mean=%d max=%d\n",
+ calP->min, calP->mean, calP->max);
+ dev_info(&chip->client->dev,
+ "%s proximity threshold set to %d\n",
+ chip->client->name, chip->tsl2x7x_settings.prox_thres_high);
+
+ /* back to the way they were */
+ chip->tsl2x7x_settings.interrupts_en = tmp_irq_settings;
+ if (current_state == TSL2X7X_CHIP_WORKING)
+ tsl2x7x_chip_on(indio_dev);
+}
+
+static ssize_t power_state_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", chip->tsl2x7x_chip_status);
+}
+
+static ssize_t power_state_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ bool value;
+
+ if (strtobool(buf, &value))
+ return -EINVAL;
+
+ if (value)
+ tsl2x7x_chip_on(indio_dev);
+ else
+ tsl2x7x_chip_off(indio_dev);
+
+ return len;
+}
+
+static ssize_t in_illuminance0_calibscale_available_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
+
+ switch (chip->id) {
+ case tsl2571:
+ case tsl2671:
+ case tmd2671:
+ case tsl2771:
+ case tmd2771:
+ return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 128");
+ }
+
+ return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 120");
+}
+
+static ssize_t in_proximity0_calibscale_available_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%s\n", "1 2 4 8");
+}
+
+static ssize_t in_illuminance0_integration_time_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
+ int y, z;
+
+ y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
+ z = y * TSL2X7X_MIN_ITIME;
+ y /= 1000;
+ z %= 1000;
+
+ return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
+}
+
+static ssize_t in_illuminance0_integration_time_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ struct tsl2x7x_parse_result result;
+ int ret;
+
+ ret = iio_str_to_fixpoint(buf, 100, &result.integer, &result.fract);
+ if (ret)
+ return ret;
+
+ result.fract /= 3;
+ chip->tsl2x7x_settings.als_time =
+ TSL2X7X_MAX_TIMER_CNT - (u8)result.fract;
+
+ dev_info(&chip->client->dev, "%s: als time = %d",
+ __func__, chip->tsl2x7x_settings.als_time);
+
+ tsl2x7x_invoke_change(indio_dev);
+
+ return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static IIO_CONST_ATTR(in_illuminance0_integration_time_available,
+ ".00272 - .696");
+
+static ssize_t in_illuminance0_target_input_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
+
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ chip->tsl2x7x_settings.als_cal_target);
+}
+
+static ssize_t in_illuminance0_target_input_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ unsigned long value;
+
+ if (kstrtoul(buf, 0, &value))
+ return -EINVAL;
+
+ if (value)
+ chip->tsl2x7x_settings.als_cal_target = value;
+
+ tsl2x7x_invoke_change(indio_dev);
+
+ return len;
+}
+
+/* persistence settings */
+static ssize_t in_intensity0_thresh_period_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
+ int y, z, filter_delay;
+
+ /* Determine integration time */
+ y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
+ z = y * TSL2X7X_MIN_ITIME;
+ filter_delay = z * (chip->tsl2x7x_settings.persistence & 0x0F);
+ y = filter_delay / 1000;
+ z = filter_delay % 1000;
+
+ return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
+}
+
+static ssize_t in_intensity0_thresh_period_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ struct tsl2x7x_parse_result result;
+ int y, z, filter_delay;
+ int ret;
+
+ ret = iio_str_to_fixpoint(buf, 100, &result.integer, &result.fract);
+ if (ret)
+ return ret;
+
+ y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
+ z = y * TSL2X7X_MIN_ITIME;
+
+ filter_delay =
+ DIV_ROUND_UP((result.integer * 1000) + result.fract, z);
+
+ chip->tsl2x7x_settings.persistence &= 0xF0;
+ chip->tsl2x7x_settings.persistence |= (filter_delay & 0x0F);
+
+ dev_info(&chip->client->dev, "%s: als persistence = %d",
+ __func__, filter_delay);
+
+ tsl2x7x_invoke_change(indio_dev);
+
+ return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static ssize_t in_proximity0_thresh_period_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
+ int y, z, filter_delay;
+
+ /* Determine integration time */
+ y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.prx_time) + 1;
+ z = y * TSL2X7X_MIN_ITIME;
+ filter_delay = z * ((chip->tsl2x7x_settings.persistence & 0xF0) >> 4);
+ y = filter_delay / 1000;
+ z = filter_delay % 1000;
+
+ return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
+}
+
+static ssize_t in_proximity0_thresh_period_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ struct tsl2x7x_parse_result result;
+ int y, z, filter_delay;
+ int ret;
+
+ ret = iio_str_to_fixpoint(buf, 100, &result.integer, &result.fract);
+ if (ret)
+ return ret;
+
+ y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.prx_time) + 1;
+ z = y * TSL2X7X_MIN_ITIME;
+
+ filter_delay =
+ DIV_ROUND_UP((result.integer * 1000) + result.fract, z);
+
+ chip->tsl2x7x_settings.persistence &= 0x0F;
+ chip->tsl2x7x_settings.persistence |= ((filter_delay << 4) & 0xF0);
+
+ dev_info(&chip->client->dev, "%s: prox persistence = %d",
+ __func__, filter_delay);
+
+ tsl2x7x_invoke_change(indio_dev);
+
+ return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static ssize_t in_illuminance0_calibrate_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ bool value;
+
+ if (strtobool(buf, &value))
+ return -EINVAL;
+
+ if (value)
+ tsl2x7x_als_calibrate(indio_dev);
+
+ tsl2x7x_invoke_change(indio_dev);
+
+ return len;
+}
+
+static ssize_t in_illuminance0_lux_table_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
+ int i = 0;
+ int offset = 0;
+
+ while (i < (TSL2X7X_MAX_LUX_TABLE_SIZE * 3)) {
+ offset += snprintf(buf + offset, PAGE_SIZE, "%u,%u,%u,",
+ chip->tsl2x7x_device_lux[i].ratio,
+ chip->tsl2x7x_device_lux[i].ch0,
+ chip->tsl2x7x_device_lux[i].ch1);
+ if (chip->tsl2x7x_device_lux[i].ratio == 0) {
+ /*
+ * We just printed the first "0" entry.
+ * Now get rid of the extra "," and break.
+ */
+ offset--;
+ break;
+ }
+ i++;
+ }
+
+ offset += snprintf(buf + offset, PAGE_SIZE, "\n");
+ return offset;
+}
+
+static ssize_t in_illuminance0_lux_table_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ int value[ARRAY_SIZE(chip->tsl2x7x_device_lux) * 3 + 1];
+ int n;
+
+ get_options(buf, ARRAY_SIZE(value), value);
+
+ /* We now have an array of ints starting at value[1], and
+ * enumerated by value[0].
+ * We expect each group of three ints is one table entry,
+ * and the last table entry is all 0.
+ */
+ n = value[0];
+ if ((n % 3) || n < 6 ||
+ n > ((ARRAY_SIZE(chip->tsl2x7x_device_lux) - 1) * 3)) {
+ dev_info(dev, "LUX TABLE INPUT ERROR 1 Value[0]=%d\n", n);
+ return -EINVAL;
+ }
+
+ if ((value[(n - 2)] | value[(n - 1)] | value[n]) != 0) {
+ dev_info(dev, "LUX TABLE INPUT ERROR 2 Value[0]=%d\n", n);
+ return -EINVAL;
+ }
+
+ if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING)
+ tsl2x7x_chip_off(indio_dev);
+
+ /* Zero out the table */
+ memset(chip->tsl2x7x_device_lux, 0, sizeof(chip->tsl2x7x_device_lux));
+ memcpy(chip->tsl2x7x_device_lux, &value[1], (value[0] * 4));
+
+ tsl2x7x_invoke_change(indio_dev);
+
+ return len;
+}
+
+static ssize_t in_proximity0_calibrate_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+ bool value;
+
+ if (strtobool(buf, &value))
+ return -EINVAL;
+
+ if (value)
+ tsl2x7x_prox_cal(indio_dev);
+
+ tsl2x7x_invoke_change(indio_dev);
+
+ return len;
+}
+
+static int tsl2x7x_read_interrupt_config(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir)
+{
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ int ret;
+
+ if (chan->type == IIO_INTENSITY)
+ ret = !!(chip->tsl2x7x_settings.interrupts_en & 0x10);
+ else
+ ret = !!(chip->tsl2x7x_settings.interrupts_en & 0x20);
+
+ return ret;
+}
+
+static int tsl2x7x_write_interrupt_config(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ int val)
+{
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+
+ if (chan->type == IIO_INTENSITY) {
+ if (val)
+ chip->tsl2x7x_settings.interrupts_en |= 0x10;
+ else
+ chip->tsl2x7x_settings.interrupts_en &= 0x20;
+ } else {
+ if (val)
+ chip->tsl2x7x_settings.interrupts_en |= 0x20;
+ else
+ chip->tsl2x7x_settings.interrupts_en &= 0x10;
+ }
+
+ tsl2x7x_invoke_change(indio_dev);
+
+ return 0;
+}
+
+static int tsl2x7x_write_thresh(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ enum iio_event_info info,
+ int val, int val2)
+{
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+
+ if (chan->type == IIO_INTENSITY) {
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ chip->tsl2x7x_settings.als_thresh_high = val;
+ break;
+ case IIO_EV_DIR_FALLING:
+ chip->tsl2x7x_settings.als_thresh_low = val;
+ break;
+ default:
+ return -EINVAL;
+ }
+ } else {
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ chip->tsl2x7x_settings.prox_thres_high = val;
+ break;
+ case IIO_EV_DIR_FALLING:
+ chip->tsl2x7x_settings.prox_thres_low = val;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ tsl2x7x_invoke_change(indio_dev);
+
+ return 0;
+}
+
+static int tsl2x7x_read_thresh(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ enum iio_event_info info,
+ int *val, int *val2)
+{
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+
+ if (chan->type == IIO_INTENSITY) {
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ *val = chip->tsl2x7x_settings.als_thresh_high;
+ break;
+ case IIO_EV_DIR_FALLING:
+ *val = chip->tsl2x7x_settings.als_thresh_low;
+ break;
+ default:
+ return -EINVAL;
+ }
+ } else {
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ *val = chip->tsl2x7x_settings.prox_thres_high;
+ break;
+ case IIO_EV_DIR_FALLING:
+ *val = chip->tsl2x7x_settings.prox_thres_low;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ return IIO_VAL_INT;
+}
+
+static int tsl2x7x_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val,
+ int *val2,
+ long mask)
+{
+ int ret = -EINVAL;
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+
+ switch (mask) {
+ case IIO_CHAN_INFO_PROCESSED:
+ switch (chan->type) {
+ case IIO_LIGHT:
+ tsl2x7x_get_lux(indio_dev);
+ *val = chip->als_cur_info.lux;
+ ret = IIO_VAL_INT;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case IIO_CHAN_INFO_RAW:
+ switch (chan->type) {
+ case IIO_INTENSITY:
+ tsl2x7x_get_lux(indio_dev);
+ if (chan->channel == 0)
+ *val = chip->als_cur_info.als_ch0;
+ else
+ *val = chip->als_cur_info.als_ch1;
+ ret = IIO_VAL_INT;
+ break;
+ case IIO_PROXIMITY:
+ tsl2x7x_get_prox(indio_dev);
+ *val = chip->prox_data;
+ ret = IIO_VAL_INT;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case IIO_CHAN_INFO_CALIBSCALE:
+ if (chan->type == IIO_LIGHT)
+ *val =
+ tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain];
+ else
+ *val =
+ tsl2X7X_prx_gainadj[chip->tsl2x7x_settings.prox_gain];
+ ret = IIO_VAL_INT;
+ break;
+ case IIO_CHAN_INFO_CALIBBIAS:
+ *val = chip->tsl2x7x_settings.als_gain_trim;
+ ret = IIO_VAL_INT;
+ break;
+
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int val,
+ int val2,
+ long mask)
+{
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+
+ switch (mask) {
+ case IIO_CHAN_INFO_CALIBSCALE:
+ if (chan->type == IIO_INTENSITY) {
+ switch (val) {
+ case 1:
+ chip->tsl2x7x_settings.als_gain = 0;
+ break;
+ case 8:
+ chip->tsl2x7x_settings.als_gain = 1;
+ break;
+ case 16:
+ chip->tsl2x7x_settings.als_gain = 2;
+ break;
+ case 120:
+ switch (chip->id) {
+ case tsl2572:
+ case tsl2672:
+ case tmd2672:
+ case tsl2772:
+ case tmd2772:
+ return -EINVAL;
+ }
+ chip->tsl2x7x_settings.als_gain = 3;
+ break;
+ case 128:
+ switch (chip->id) {
+ case tsl2571:
+ case tsl2671:
+ case tmd2671:
+ case tsl2771:
+ case tmd2771:
+ return -EINVAL;
+ }
+ chip->tsl2x7x_settings.als_gain = 3;
+ break;
+ default:
+ return -EINVAL;
+ }
+ } else {
+ switch (val) {
+ case 1:
+ chip->tsl2x7x_settings.prox_gain = 0;
+ break;
+ case 2:
+ chip->tsl2x7x_settings.prox_gain = 1;
+ break;
+ case 4:
+ chip->tsl2x7x_settings.prox_gain = 2;
+ break;
+ case 8:
+ chip->tsl2x7x_settings.prox_gain = 3;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+ break;
+ case IIO_CHAN_INFO_CALIBBIAS:
+ chip->tsl2x7x_settings.als_gain_trim = val;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ tsl2x7x_invoke_change(indio_dev);
+
+ return 0;
+}
+
+static DEVICE_ATTR_RW(power_state);
+
+static DEVICE_ATTR_RO(in_proximity0_calibscale_available);
+
+static DEVICE_ATTR_RO(in_illuminance0_calibscale_available);
+
+static DEVICE_ATTR_RW(in_illuminance0_integration_time);
+
+static DEVICE_ATTR_RW(in_illuminance0_target_input);
+
+static DEVICE_ATTR_WO(in_illuminance0_calibrate);
+
+static DEVICE_ATTR_WO(in_proximity0_calibrate);
+
+static DEVICE_ATTR_RW(in_illuminance0_lux_table);
+
+static DEVICE_ATTR_RW(in_intensity0_thresh_period);
+
+static DEVICE_ATTR_RW(in_proximity0_thresh_period);
+
+/* Use the default register values to identify the Taos device */
+static int tsl2x7x_device_id(unsigned char *id, int target)
+{
+ switch (target) {
+ case tsl2571:
+ case tsl2671:
+ case tsl2771:
+ return (*id & 0xf0) == TRITON_ID;
+ case tmd2671:
+ case tmd2771:
+ return (*id & 0xf0) == HALIBUT_ID;
+ case tsl2572:
+ case tsl2672:
+ case tmd2672:
+ case tsl2772:
+ case tmd2772:
+ return (*id & 0xf0) == SWORDFISH_ID;
+ }
+
+ return -EINVAL;
+}
+
+static irqreturn_t tsl2x7x_event_handler(int irq, void *private)
+{
+ struct iio_dev *indio_dev = private;
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ s64 timestamp = iio_get_time_ns(indio_dev);
+ int ret;
+ u8 value;
+
+ value = i2c_smbus_read_byte_data(chip->client,
+ TSL2X7X_CMD_REG | TSL2X7X_STATUS);
+
+ /* What type of interrupt do we need to process */
+ if (value & TSL2X7X_STA_PRX_INTR) {
+ tsl2x7x_get_prox(indio_dev); /* freshen data for ABI */
+ iio_push_event(indio_dev,
+ IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY,
+ 0,
+ IIO_EV_TYPE_THRESH,
+ IIO_EV_DIR_EITHER),
+ timestamp);
+ }
+
+ if (value & TSL2X7X_STA_ALS_INTR) {
+ tsl2x7x_get_lux(indio_dev); /* freshen data for ABI */
+ iio_push_event(indio_dev,
+ IIO_UNMOD_EVENT_CODE(IIO_LIGHT,
+ 0,
+ IIO_EV_TYPE_THRESH,
+ IIO_EV_DIR_EITHER),
+ timestamp);
+ }
+ /* Clear interrupt now that we have handled it. */
+ ret = i2c_smbus_write_byte(chip->client,
+ TSL2X7X_CMD_REG | TSL2X7X_CMD_SPL_FN |
+ TSL2X7X_CMD_PROXALS_INT_CLR);
+ if (ret < 0)
+ dev_err(&chip->client->dev,
+ "Failed to clear irq from event handler. err = %d\n",
+ ret);
+
+ return IRQ_HANDLED;
+}
+
+static struct attribute *tsl2x7x_ALS_device_attrs[] = {
+ &dev_attr_power_state.attr,
+ &dev_attr_in_illuminance0_calibscale_available.attr,
+ &dev_attr_in_illuminance0_integration_time.attr,
+ &iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr,
+ &dev_attr_in_illuminance0_target_input.attr,
+ &dev_attr_in_illuminance0_calibrate.attr,
+ &dev_attr_in_illuminance0_lux_table.attr,
+ NULL
+};
+
+static struct attribute *tsl2x7x_PRX_device_attrs[] = {
+ &dev_attr_power_state.attr,
+ &dev_attr_in_proximity0_calibrate.attr,
+ NULL
+};
+
+static struct attribute *tsl2x7x_ALSPRX_device_attrs[] = {
+ &dev_attr_power_state.attr,
+ &dev_attr_in_illuminance0_calibscale_available.attr,
+ &dev_attr_in_illuminance0_integration_time.attr,
+ &iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr,
+ &dev_attr_in_illuminance0_target_input.attr,
+ &dev_attr_in_illuminance0_calibrate.attr,
+ &dev_attr_in_illuminance0_lux_table.attr,
+ &dev_attr_in_proximity0_calibrate.attr,
+ NULL
+};
+
+static struct attribute *tsl2x7x_PRX2_device_attrs[] = {
+ &dev_attr_power_state.attr,
+ &dev_attr_in_proximity0_calibrate.attr,
+ &dev_attr_in_proximity0_calibscale_available.attr,
+ NULL
+};
+
+static struct attribute *tsl2x7x_ALSPRX2_device_attrs[] = {
+ &dev_attr_power_state.attr,
+ &dev_attr_in_illuminance0_calibscale_available.attr,
+ &dev_attr_in_illuminance0_integration_time.attr,
+ &iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr,
+ &dev_attr_in_illuminance0_target_input.attr,
+ &dev_attr_in_illuminance0_calibrate.attr,
+ &dev_attr_in_illuminance0_lux_table.attr,
+ &dev_attr_in_proximity0_calibrate.attr,
+ &dev_attr_in_proximity0_calibscale_available.attr,
+ NULL
+};
+
+static struct attribute *tsl2X7X_ALS_event_attrs[] = {
+ &dev_attr_in_intensity0_thresh_period.attr,
+ NULL,
+};
+
+static struct attribute *tsl2X7X_PRX_event_attrs[] = {
+ &dev_attr_in_proximity0_thresh_period.attr,
+ NULL,
+};
+
+static struct attribute *tsl2X7X_ALSPRX_event_attrs[] = {
+ &dev_attr_in_intensity0_thresh_period.attr,
+ &dev_attr_in_proximity0_thresh_period.attr,
+ NULL,
+};
+
+static const struct attribute_group tsl2X7X_device_attr_group_tbl[] = {
+ [ALS] = {
+ .attrs = tsl2x7x_ALS_device_attrs,
+ },
+ [PRX] = {
+ .attrs = tsl2x7x_PRX_device_attrs,
+ },
+ [ALSPRX] = {
+ .attrs = tsl2x7x_ALSPRX_device_attrs,
+ },
+ [PRX2] = {
+ .attrs = tsl2x7x_PRX2_device_attrs,
+ },
+ [ALSPRX2] = {
+ .attrs = tsl2x7x_ALSPRX2_device_attrs,
+ },
+};
+
+static const struct attribute_group tsl2X7X_event_attr_group_tbl[] = {
+ [ALS] = {
+ .attrs = tsl2X7X_ALS_event_attrs,
+ .name = "events",
+ },
+ [PRX] = {
+ .attrs = tsl2X7X_PRX_event_attrs,
+ .name = "events",
+ },
+ [ALSPRX] = {
+ .attrs = tsl2X7X_ALSPRX_event_attrs,
+ .name = "events",
+ },
+};
+
+static const struct iio_info tsl2X7X_device_info[] = {
+ [ALS] = {
+ .attrs = &tsl2X7X_device_attr_group_tbl[ALS],
+ .event_attrs = &tsl2X7X_event_attr_group_tbl[ALS],
+ .driver_module = THIS_MODULE,
+ .read_raw = &tsl2x7x_read_raw,
+ .write_raw = &tsl2x7x_write_raw,
+ .read_event_value = &tsl2x7x_read_thresh,
+ .write_event_value = &tsl2x7x_write_thresh,
+ .read_event_config = &tsl2x7x_read_interrupt_config,
+ .write_event_config = &tsl2x7x_write_interrupt_config,
+ },
+ [PRX] = {
+ .attrs = &tsl2X7X_device_attr_group_tbl[PRX],
+ .event_attrs = &tsl2X7X_event_attr_group_tbl[PRX],
+ .driver_module = THIS_MODULE,
+ .read_raw = &tsl2x7x_read_raw,
+ .write_raw = &tsl2x7x_write_raw,
+ .read_event_value = &tsl2x7x_read_thresh,
+ .write_event_value = &tsl2x7x_write_thresh,
+ .read_event_config = &tsl2x7x_read_interrupt_config,
+ .write_event_config = &tsl2x7x_write_interrupt_config,
+ },
+ [ALSPRX] = {
+ .attrs = &tsl2X7X_device_attr_group_tbl[ALSPRX],
+ .event_attrs = &tsl2X7X_event_attr_group_tbl[ALSPRX],
+ .driver_module = THIS_MODULE,
+ .read_raw = &tsl2x7x_read_raw,
+ .write_raw = &tsl2x7x_write_raw,
+ .read_event_value = &tsl2x7x_read_thresh,
+ .write_event_value = &tsl2x7x_write_thresh,
+ .read_event_config = &tsl2x7x_read_interrupt_config,
+ .write_event_config = &tsl2x7x_write_interrupt_config,
+ },
+ [PRX2] = {
+ .attrs = &tsl2X7X_device_attr_group_tbl[PRX2],
+ .event_attrs = &tsl2X7X_event_attr_group_tbl[PRX],
+ .driver_module = THIS_MODULE,
+ .read_raw = &tsl2x7x_read_raw,
+ .write_raw = &tsl2x7x_write_raw,
+ .read_event_value = &tsl2x7x_read_thresh,
+ .write_event_value = &tsl2x7x_write_thresh,
+ .read_event_config = &tsl2x7x_read_interrupt_config,
+ .write_event_config = &tsl2x7x_write_interrupt_config,
+ },
+ [ALSPRX2] = {
+ .attrs = &tsl2X7X_device_attr_group_tbl[ALSPRX2],
+ .event_attrs = &tsl2X7X_event_attr_group_tbl[ALSPRX],
+ .driver_module = THIS_MODULE,
+ .read_raw = &tsl2x7x_read_raw,
+ .write_raw = &tsl2x7x_write_raw,
+ .read_event_value = &tsl2x7x_read_thresh,
+ .write_event_value = &tsl2x7x_write_thresh,
+ .read_event_config = &tsl2x7x_read_interrupt_config,
+ .write_event_config = &tsl2x7x_write_interrupt_config,
+ },
+};
+
+static const struct iio_event_spec tsl2x7x_events[] = {
+ {
+ .type = IIO_EV_TYPE_THRESH,
+ .dir = IIO_EV_DIR_RISING,
+ .mask_separate = BIT(IIO_EV_INFO_VALUE) |
+ BIT(IIO_EV_INFO_ENABLE),
+ }, {
+ .type = IIO_EV_TYPE_THRESH,
+ .dir = IIO_EV_DIR_FALLING,
+ .mask_separate = BIT(IIO_EV_INFO_VALUE) |
+ BIT(IIO_EV_INFO_ENABLE),
+ },
+};
+
+static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
+ [ALS] = {
+ .channel = {
+ {
+ .type = IIO_LIGHT,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+ }, {
+ .type = IIO_INTENSITY,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_CALIBSCALE) |
+ BIT(IIO_CHAN_INFO_CALIBBIAS),
+ .event_spec = tsl2x7x_events,
+ .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
+ }, {
+ .type = IIO_INTENSITY,
+ .indexed = 1,
+ .channel = 1,
+ },
+ },
+ .chan_table_elements = 3,
+ .info = &tsl2X7X_device_info[ALS],
+ },
+ [PRX] = {
+ .channel = {
+ {
+ .type = IIO_PROXIMITY,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ .event_spec = tsl2x7x_events,
+ .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
+ },
+ },
+ .chan_table_elements = 1,
+ .info = &tsl2X7X_device_info[PRX],
+ },
+ [ALSPRX] = {
+ .channel = {
+ {
+ .type = IIO_LIGHT,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED)
+ }, {
+ .type = IIO_INTENSITY,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_CALIBSCALE) |
+ BIT(IIO_CHAN_INFO_CALIBBIAS),
+ .event_spec = tsl2x7x_events,
+ .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
+ }, {
+ .type = IIO_INTENSITY,
+ .indexed = 1,
+ .channel = 1,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ }, {
+ .type = IIO_PROXIMITY,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ .event_spec = tsl2x7x_events,
+ .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
+ },
+ },
+ .chan_table_elements = 4,
+ .info = &tsl2X7X_device_info[ALSPRX],
+ },
+ [PRX2] = {
+ .channel = {
+ {
+ .type = IIO_PROXIMITY,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_CALIBSCALE),
+ .event_spec = tsl2x7x_events,
+ .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
+ },
+ },
+ .chan_table_elements = 1,
+ .info = &tsl2X7X_device_info[PRX2],
+ },
+ [ALSPRX2] = {
+ .channel = {
+ {
+ .type = IIO_LIGHT,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+ }, {
+ .type = IIO_INTENSITY,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_CALIBSCALE) |
+ BIT(IIO_CHAN_INFO_CALIBBIAS),
+ .event_spec = tsl2x7x_events,
+ .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
+ }, {
+ .type = IIO_INTENSITY,
+ .indexed = 1,
+ .channel = 1,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ }, {
+ .type = IIO_PROXIMITY,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+ BIT(IIO_CHAN_INFO_CALIBSCALE),
+ .event_spec = tsl2x7x_events,
+ .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
+ },
+ },
+ .chan_table_elements = 4,
+ .info = &tsl2X7X_device_info[ALSPRX2],
+ },
+};
+
+static int tsl2x7x_probe(struct i2c_client *clientp,
+ const struct i2c_device_id *id)
+{
+ int ret;
+ unsigned char device_id;
+ struct iio_dev *indio_dev;
+ struct tsl2X7X_chip *chip;
+
+ indio_dev = devm_iio_device_alloc(&clientp->dev, sizeof(*chip));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ chip = iio_priv(indio_dev);
+ chip->client = clientp;
+ i2c_set_clientdata(clientp, indio_dev);
+
+ ret = tsl2x7x_i2c_read(chip->client,
+ TSL2X7X_CHIPID, &device_id);
+ if (ret < 0)
+ return ret;
+
+ if ((!tsl2x7x_device_id(&device_id, id->driver_data)) ||
+ (tsl2x7x_device_id(&device_id, id->driver_data) == -EINVAL)) {
+ dev_info(&chip->client->dev,
+ "%s: i2c device found does not match expected id\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ ret = i2c_smbus_write_byte(clientp, (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
+ if (ret < 0) {
+ dev_err(&clientp->dev, "write to cmd reg failed. err = %d\n",
+ ret);
+ return ret;
+ }
+
+ /*
+ * ALS and PROX functions can be invoked via user space poll
+ * or H/W interrupt. If busy return last sample.
+ */
+ mutex_init(&chip->als_mutex);
+ mutex_init(&chip->prox_mutex);
+
+ chip->tsl2x7x_chip_status = TSL2X7X_CHIP_UNKNOWN;
+ chip->pdata = dev_get_platdata(&clientp->dev);
+ chip->id = id->driver_data;
+ chip->chip_info =
+ &tsl2x7x_chip_info_tbl[device_channel_config[id->driver_data]];
+
+ indio_dev->info = chip->chip_info->info;
+ indio_dev->dev.parent = &clientp->dev;
+ indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->name = chip->client->name;
+ indio_dev->channels = chip->chip_info->channel;
+ indio_dev->num_channels = chip->chip_info->chan_table_elements;
+
+ if (clientp->irq) {
+ ret = devm_request_threaded_irq(&clientp->dev, clientp->irq,
+ NULL,
+ &tsl2x7x_event_handler,
+ IRQF_TRIGGER_RISING |
+ IRQF_ONESHOT,
+ "TSL2X7X_event",
+ indio_dev);
+ if (ret) {
+ dev_err(&clientp->dev,
+ "%s: irq request failed", __func__);
+ return ret;
+ }
+ }
+
+ /* Load up the defaults */
+ tsl2x7x_defaults(chip);
+ /* Make sure the chip is on */
+ tsl2x7x_chip_on(indio_dev);
+
+ ret = iio_device_register(indio_dev);
+ if (ret) {
+ dev_err(&clientp->dev,
+ "%s: iio registration failed\n", __func__);
+ return ret;
+ }
+
+ dev_info(&clientp->dev, "%s Light sensor found.\n", id->name);
+
+ return 0;
+}
+
+static int tsl2x7x_suspend(struct device *dev)
+{
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ int ret = 0;
+
+ if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
+ ret = tsl2x7x_chip_off(indio_dev);
+ chip->tsl2x7x_chip_status = TSL2X7X_CHIP_SUSPENDED;
+ }
+
+ if (chip->pdata && chip->pdata->platform_power) {
+ pm_message_t pmm = {PM_EVENT_SUSPEND};
+
+ chip->pdata->platform_power(dev, pmm);
+ }
+
+ return ret;
+}
+
+static int tsl2x7x_resume(struct device *dev)
+{
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ int ret = 0;
+
+ if (chip->pdata && chip->pdata->platform_power) {
+ pm_message_t pmm = {PM_EVENT_RESUME};
+
+ chip->pdata->platform_power(dev, pmm);
+ }
+
+ if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_SUSPENDED)
+ ret = tsl2x7x_chip_on(indio_dev);
+
+ return ret;
+}
+
+static int tsl2x7x_remove(struct i2c_client *client)
+{
+ struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+ tsl2x7x_chip_off(indio_dev);
+
+ iio_device_unregister(indio_dev);
+
+ return 0;
+}
+
+static struct i2c_device_id tsl2x7x_idtable[] = {
+ { "tsl2571", tsl2571 },
+ { "tsl2671", tsl2671 },
+ { "tmd2671", tmd2671 },
+ { "tsl2771", tsl2771 },
+ { "tmd2771", tmd2771 },
+ { "tsl2572", tsl2572 },
+ { "tsl2672", tsl2672 },
+ { "tmd2672", tmd2672 },
+ { "tsl2772", tsl2772 },
+ { "tmd2772", tmd2772 },
+ {}
+};
+
+MODULE_DEVICE_TABLE(i2c, tsl2x7x_idtable);
+
+static const struct dev_pm_ops tsl2x7x_pm_ops = {
+ .suspend = tsl2x7x_suspend,
+ .resume = tsl2x7x_resume,
+};
+
+/* Driver definition */
+static struct i2c_driver tsl2x7x_driver = {
+ .driver = {
+ .name = "tsl2x7x",
+ .pm = &tsl2x7x_pm_ops,
+ },
+ .id_table = tsl2x7x_idtable,
+ .probe = tsl2x7x_probe,
+ .remove = tsl2x7x_remove,
+};
+
+module_i2c_driver(tsl2x7x_driver);
+
+MODULE_AUTHOR("J. August Brenner<jbrenner@taosinc.com>");
+MODULE_DESCRIPTION("TAOS tsl2x7x ambient and proximity light sensor driver");
+MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Device driver for monitoring ambient light intensity in (lux)
- * and proximity detection (prox) within the TAOS TSL2X7X family of devices.
- *
- * Copyright (c) 2012, TAOS Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/errno.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/iio/events.h>
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-#include "tsl2x7x.h"
-
-/* Cal defs*/
-#define PROX_STAT_CAL 0
-#define PROX_STAT_SAMP 1
-#define MAX_SAMPLES_CAL 200
-
-/* TSL2X7X Device ID */
-#define TRITON_ID 0x00
-#define SWORDFISH_ID 0x30
-#define HALIBUT_ID 0x20
-
-/* Lux calculation constants */
-#define TSL2X7X_LUX_CALC_OVER_FLOW 65535
-
-/* TAOS Register definitions - note:
- * depending on device, some of these register are not used and the
- * register address is benign.
- */
-/* 2X7X register offsets */
-#define TSL2X7X_MAX_CONFIG_REG 16
-
-/* Device Registers and Masks */
-#define TSL2X7X_CNTRL 0x00
-#define TSL2X7X_ALS_TIME 0X01
-#define TSL2X7X_PRX_TIME 0x02
-#define TSL2X7X_WAIT_TIME 0x03
-#define TSL2X7X_ALS_MINTHRESHLO 0X04
-#define TSL2X7X_ALS_MINTHRESHHI 0X05
-#define TSL2X7X_ALS_MAXTHRESHLO 0X06
-#define TSL2X7X_ALS_MAXTHRESHHI 0X07
-#define TSL2X7X_PRX_MINTHRESHLO 0X08
-#define TSL2X7X_PRX_MINTHRESHHI 0X09
-#define TSL2X7X_PRX_MAXTHRESHLO 0X0A
-#define TSL2X7X_PRX_MAXTHRESHHI 0X0B
-#define TSL2X7X_PERSISTENCE 0x0C
-#define TSL2X7X_PRX_CONFIG 0x0D
-#define TSL2X7X_PRX_COUNT 0x0E
-#define TSL2X7X_GAIN 0x0F
-#define TSL2X7X_NOTUSED 0x10
-#define TSL2X7X_REVID 0x11
-#define TSL2X7X_CHIPID 0x12
-#define TSL2X7X_STATUS 0x13
-#define TSL2X7X_ALS_CHAN0LO 0x14
-#define TSL2X7X_ALS_CHAN0HI 0x15
-#define TSL2X7X_ALS_CHAN1LO 0x16
-#define TSL2X7X_ALS_CHAN1HI 0x17
-#define TSL2X7X_PRX_LO 0x18
-#define TSL2X7X_PRX_HI 0x19
-
-/* tsl2X7X cmd reg masks */
-#define TSL2X7X_CMD_REG 0x80
-#define TSL2X7X_CMD_SPL_FN 0x60
-
-#define TSL2X7X_CMD_PROX_INT_CLR 0X05
-#define TSL2X7X_CMD_ALS_INT_CLR 0x06
-#define TSL2X7X_CMD_PROXALS_INT_CLR 0X07
-
-/* tsl2X7X cntrl reg masks */
-#define TSL2X7X_CNTL_ADC_ENBL 0x02
-#define TSL2X7X_CNTL_PWR_ON 0x01
-
-/* tsl2X7X status reg masks */
-#define TSL2X7X_STA_ADC_VALID 0x01
-#define TSL2X7X_STA_PRX_VALID 0x02
-#define TSL2X7X_STA_ADC_PRX_VALID (TSL2X7X_STA_ADC_VALID |\
- TSL2X7X_STA_PRX_VALID)
-#define TSL2X7X_STA_ALS_INTR 0x10
-#define TSL2X7X_STA_PRX_INTR 0x20
-
-/* tsl2X7X cntrl reg masks */
-#define TSL2X7X_CNTL_REG_CLEAR 0x00
-#define TSL2X7X_CNTL_PROX_INT_ENBL 0X20
-#define TSL2X7X_CNTL_ALS_INT_ENBL 0X10
-#define TSL2X7X_CNTL_WAIT_TMR_ENBL 0X08
-#define TSL2X7X_CNTL_PROX_DET_ENBL 0X04
-#define TSL2X7X_CNTL_PWRON 0x01
-#define TSL2X7X_CNTL_ALSPON_ENBL 0x03
-#define TSL2X7X_CNTL_INTALSPON_ENBL 0x13
-#define TSL2X7X_CNTL_PROXPON_ENBL 0x0F
-#define TSL2X7X_CNTL_INTPROXPON_ENBL 0x2F
-
-/*Prox diode to use */
-#define TSL2X7X_DIODE0 0x10
-#define TSL2X7X_DIODE1 0x20
-#define TSL2X7X_DIODE_BOTH 0x30
-
-/* LED Power */
-#define TSL2X7X_mA100 0x00
-#define TSL2X7X_mA50 0x40
-#define TSL2X7X_mA25 0x80
-#define TSL2X7X_mA13 0xD0
-#define TSL2X7X_MAX_TIMER_CNT (0xFF)
-
-#define TSL2X7X_MIN_ITIME 3
-
-/* TAOS txx2x7x Device family members */
-enum {
- tsl2571,
- tsl2671,
- tmd2671,
- tsl2771,
- tmd2771,
- tsl2572,
- tsl2672,
- tmd2672,
- tsl2772,
- tmd2772
-};
-
-enum {
- TSL2X7X_CHIP_UNKNOWN = 0,
- TSL2X7X_CHIP_WORKING = 1,
- TSL2X7X_CHIP_SUSPENDED = 2
-};
-
-struct tsl2x7x_parse_result {
- int integer;
- int fract;
-};
-
-/* Per-device data */
-struct tsl2x7x_als_info {
- u16 als_ch0;
- u16 als_ch1;
- u16 lux;
-};
-
-struct tsl2x7x_prox_stat {
- int min;
- int max;
- int mean;
- unsigned long stddev;
-};
-
-struct tsl2x7x_chip_info {
- int chan_table_elements;
- struct iio_chan_spec channel[4];
- const struct iio_info *info;
-};
-
-struct tsl2X7X_chip {
- kernel_ulong_t id;
- struct mutex prox_mutex;
- struct mutex als_mutex;
- struct i2c_client *client;
- u16 prox_data;
- struct tsl2x7x_als_info als_cur_info;
- struct tsl2x7x_settings tsl2x7x_settings;
- struct tsl2X7X_platform_data *pdata;
- int als_time_scale;
- int als_saturation;
- int tsl2x7x_chip_status;
- u8 tsl2x7x_config[TSL2X7X_MAX_CONFIG_REG];
- const struct tsl2x7x_chip_info *chip_info;
- const struct iio_info *info;
- s64 event_timestamp;
- /*
- * This structure is intentionally large to accommodate
- * updates via sysfs.
- * Sized to 9 = max 8 segments + 1 termination segment
- */
- struct tsl2x7x_lux tsl2x7x_device_lux[TSL2X7X_MAX_LUX_TABLE_SIZE];
-};
-
-/* Different devices require different coefficents */
-static const struct tsl2x7x_lux tsl2x71_lux_table[] = {
- { 14461, 611, 1211 },
- { 18540, 352, 623 },
- { 0, 0, 0 },
-};
-
-static const struct tsl2x7x_lux tmd2x71_lux_table[] = {
- { 11635, 115, 256 },
- { 15536, 87, 179 },
- { 0, 0, 0 },
-};
-
-static const struct tsl2x7x_lux tsl2x72_lux_table[] = {
- { 14013, 466, 917 },
- { 18222, 310, 552 },
- { 0, 0, 0 },
-};
-
-static const struct tsl2x7x_lux tmd2x72_lux_table[] = {
- { 13218, 130, 262 },
- { 17592, 92, 169 },
- { 0, 0, 0 },
-};
-
-static const struct tsl2x7x_lux *tsl2x7x_default_lux_table_group[] = {
- [tsl2571] = tsl2x71_lux_table,
- [tsl2671] = tsl2x71_lux_table,
- [tmd2671] = tmd2x71_lux_table,
- [tsl2771] = tsl2x71_lux_table,
- [tmd2771] = tmd2x71_lux_table,
- [tsl2572] = tsl2x72_lux_table,
- [tsl2672] = tsl2x72_lux_table,
- [tmd2672] = tmd2x72_lux_table,
- [tsl2772] = tsl2x72_lux_table,
- [tmd2772] = tmd2x72_lux_table,
-};
-
-static const struct tsl2x7x_settings tsl2x7x_default_settings = {
- .als_time = 219, /* 101 ms */
- .als_gain = 0,
- .prx_time = 254, /* 5.4 ms */
- .prox_gain = 1,
- .wait_time = 245,
- .prox_config = 0,
- .als_gain_trim = 1000,
- .als_cal_target = 150,
- .als_thresh_low = 200,
- .als_thresh_high = 256,
- .persistence = 255,
- .interrupts_en = 0,
- .prox_thres_low = 0,
- .prox_thres_high = 512,
- .prox_max_samples_cal = 30,
- .prox_pulse_count = 8
-};
-
-static const s16 tsl2X7X_als_gainadj[] = {
- 1,
- 8,
- 16,
- 120
-};
-
-static const s16 tsl2X7X_prx_gainadj[] = {
- 1,
- 2,
- 4,
- 8
-};
-
-/* Channel variations */
-enum {
- ALS,
- PRX,
- ALSPRX,
- PRX2,
- ALSPRX2,
-};
-
-static const u8 device_channel_config[] = {
- ALS,
- PRX,
- PRX,
- ALSPRX,
- ALSPRX,
- ALS,
- PRX2,
- PRX2,
- ALSPRX2,
- ALSPRX2
-};
-
-/**
- * tsl2x7x_i2c_read() - Read a byte from a register.
- * @client: i2c client
- * @reg: device register to read from
- * @*val: pointer to location to store register contents.
- *
- */
-static int
-tsl2x7x_i2c_read(struct i2c_client *client, u8 reg, u8 *val)
-{
- int ret;
-
- /* select register to write */
- ret = i2c_smbus_write_byte(client, (TSL2X7X_CMD_REG | reg));
- if (ret < 0) {
- dev_err(&client->dev, "failed to write register %x\n", reg);
- return ret;
- }
-
- /* read the data */
- ret = i2c_smbus_read_byte(client);
- if (ret >= 0)
- *val = (u8)ret;
- else
- dev_err(&client->dev, "failed to read register %x\n", reg);
-
- return ret;
-}
-
-/**
- * tsl2x7x_get_lux() - Reads and calculates current lux value.
- * @indio_dev: pointer to IIO device
- *
- * The raw ch0 and ch1 values of the ambient light sensed in the last
- * integration cycle are read from the device.
- * Time scale factor array values are adjusted based on the integration time.
- * The raw values are multiplied by a scale factor, and device gain is obtained
- * using gain index. Limit checks are done next, then the ratio of a multiple
- * of ch1 value, to the ch0 value, is calculated. Array tsl2x7x_device_lux[]
- * is then scanned to find the first ratio value that is just above the ratio
- * we just calculated. The ch0 and ch1 multiplier constants in the array are
- * then used along with the time scale factor array values, to calculate the
- * lux.
- */
-static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
-{
- u16 ch0, ch1; /* separated ch0/ch1 data from device */
- u32 lux; /* raw lux calculated from device data */
- u64 lux64;
- u32 ratio;
- u8 buf[4];
- struct tsl2x7x_lux *p;
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- int i, ret;
- u32 ch0lux = 0;
- u32 ch1lux = 0;
-
- if (mutex_trylock(&chip->als_mutex) == 0)
- return chip->als_cur_info.lux; /* busy, so return LAST VALUE */
-
- if (chip->tsl2x7x_chip_status != TSL2X7X_CHIP_WORKING) {
- /* device is not enabled */
- dev_err(&chip->client->dev, "%s: device is not enabled\n",
- __func__);
- ret = -EBUSY;
- goto out_unlock;
- }
-
- ret = tsl2x7x_i2c_read(chip->client,
- (TSL2X7X_CMD_REG | TSL2X7X_STATUS), &buf[0]);
- if (ret < 0) {
- dev_err(&chip->client->dev,
- "%s: Failed to read STATUS Reg\n", __func__);
- goto out_unlock;
- }
- /* is data new & valid */
- if (!(buf[0] & TSL2X7X_STA_ADC_VALID)) {
- dev_err(&chip->client->dev,
- "%s: data not valid yet\n", __func__);
- ret = chip->als_cur_info.lux; /* return LAST VALUE */
- goto out_unlock;
- }
-
- for (i = 0; i < 4; i++) {
- ret = tsl2x7x_i2c_read(chip->client,
- (TSL2X7X_CMD_REG |
- (TSL2X7X_ALS_CHAN0LO + i)), &buf[i]);
- if (ret < 0) {
- dev_err(&chip->client->dev,
- "failed to read. err=%x\n", ret);
- goto out_unlock;
- }
- }
-
- /* clear any existing interrupt status */
- ret = i2c_smbus_write_byte(chip->client,
- (TSL2X7X_CMD_REG |
- TSL2X7X_CMD_SPL_FN |
- TSL2X7X_CMD_ALS_INT_CLR));
- if (ret < 0) {
- dev_err(&chip->client->dev,
- "i2c_write_command failed - err = %d\n", ret);
- goto out_unlock; /* have no data, so return failure */
- }
-
- /* extract ALS/lux data */
- ch0 = le16_to_cpup((const __le16 *)&buf[0]);
- ch1 = le16_to_cpup((const __le16 *)&buf[2]);
-
- chip->als_cur_info.als_ch0 = ch0;
- chip->als_cur_info.als_ch1 = ch1;
-
- if ((ch0 >= chip->als_saturation) || (ch1 >= chip->als_saturation)) {
- lux = TSL2X7X_LUX_CALC_OVER_FLOW;
- goto return_max;
- }
-
- if (!ch0) {
- /* have no data, so return LAST VALUE */
- ret = chip->als_cur_info.lux;
- goto out_unlock;
- }
- /* calculate ratio */
- ratio = (ch1 << 15) / ch0;
- /* convert to unscaled lux using the pointer to the table */
- p = (struct tsl2x7x_lux *)chip->tsl2x7x_device_lux;
- while (p->ratio != 0 && p->ratio < ratio)
- p++;
-
- if (p->ratio == 0) {
- lux = 0;
- } else {
- ch0lux = DIV_ROUND_UP(ch0 * p->ch0,
- tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain]);
- ch1lux = DIV_ROUND_UP(ch1 * p->ch1,
- tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain]);
- lux = ch0lux - ch1lux;
- }
-
- /* note: lux is 31 bit max at this point */
- if (ch1lux > ch0lux) {
- dev_dbg(&chip->client->dev, "ch1lux > ch0lux-return last value\n");
- ret = chip->als_cur_info.lux;
- goto out_unlock;
- }
-
- /* adjust for active time scale */
- if (chip->als_time_scale == 0)
- lux = 0;
- else
- lux = (lux + (chip->als_time_scale >> 1)) /
- chip->als_time_scale;
-
- /* adjust for active gain scale
- * The tsl2x7x_device_lux tables have a factor of 256 built-in.
- * User-specified gain provides a multiplier.
- * Apply user-specified gain before shifting right to retain precision.
- * Use 64 bits to avoid overflow on multiplication.
- * Then go back to 32 bits before division to avoid using div_u64().
- */
-
- lux64 = lux;
- lux64 = lux64 * chip->tsl2x7x_settings.als_gain_trim;
- lux64 >>= 8;
- lux = lux64;
- lux = (lux + 500) / 1000;
-
- if (lux > TSL2X7X_LUX_CALC_OVER_FLOW) /* check for overflow */
- lux = TSL2X7X_LUX_CALC_OVER_FLOW;
-
- /* Update the structure with the latest lux. */
-return_max:
- chip->als_cur_info.lux = lux;
- ret = lux;
-
-out_unlock:
- mutex_unlock(&chip->als_mutex);
-
- return ret;
-}
-
-/**
- * tsl2x7x_get_prox() - Reads proximity data registers and updates
- * chip->prox_data.
- *
- * @indio_dev: pointer to IIO device
- */
-static int tsl2x7x_get_prox(struct iio_dev *indio_dev)
-{
- int i;
- int ret;
- u8 status;
- u8 chdata[2];
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
- if (mutex_trylock(&chip->prox_mutex) == 0) {
- dev_err(&chip->client->dev,
- "%s: Can't get prox mutex\n", __func__);
- return -EBUSY;
- }
-
- ret = tsl2x7x_i2c_read(chip->client,
- (TSL2X7X_CMD_REG | TSL2X7X_STATUS), &status);
- if (ret < 0) {
- dev_err(&chip->client->dev, "i2c err=%d\n", ret);
- goto prox_poll_err;
- }
-
- switch (chip->id) {
- case tsl2571:
- case tsl2671:
- case tmd2671:
- case tsl2771:
- case tmd2771:
- if (!(status & TSL2X7X_STA_ADC_VALID))
- goto prox_poll_err;
- break;
- case tsl2572:
- case tsl2672:
- case tmd2672:
- case tsl2772:
- case tmd2772:
- if (!(status & TSL2X7X_STA_PRX_VALID))
- goto prox_poll_err;
- break;
- }
-
- for (i = 0; i < 2; i++) {
- ret = tsl2x7x_i2c_read(chip->client,
- (TSL2X7X_CMD_REG |
- (TSL2X7X_PRX_LO + i)), &chdata[i]);
- if (ret < 0)
- goto prox_poll_err;
- }
-
- chip->prox_data =
- le16_to_cpup((const __le16 *)&chdata[0]);
-
-prox_poll_err:
-
- mutex_unlock(&chip->prox_mutex);
-
- return chip->prox_data;
-}
-
-/**
- * tsl2x7x_defaults() - Populates the device nominal operating parameters
- * with those provided by a 'platform' data struct or
- * with prefined defaults.
- *
- * @chip: pointer to device structure.
- */
-static void tsl2x7x_defaults(struct tsl2X7X_chip *chip)
-{
- /* If Operational settings defined elsewhere.. */
- if (chip->pdata && chip->pdata->platform_default_settings)
- memcpy(&chip->tsl2x7x_settings,
- chip->pdata->platform_default_settings,
- sizeof(tsl2x7x_default_settings));
- else
- memcpy(&chip->tsl2x7x_settings,
- &tsl2x7x_default_settings,
- sizeof(tsl2x7x_default_settings));
-
- /* Load up the proper lux table. */
- if (chip->pdata && chip->pdata->platform_lux_table[0].ratio != 0)
- memcpy(chip->tsl2x7x_device_lux,
- chip->pdata->platform_lux_table,
- sizeof(chip->pdata->platform_lux_table));
- else
- memcpy(chip->tsl2x7x_device_lux,
- (struct tsl2x7x_lux *)tsl2x7x_default_lux_table_group[chip->id],
- MAX_DEFAULT_TABLE_BYTES);
-}
-
-/**
- * tsl2x7x_als_calibrate() - Obtain single reading and calculate
- * the als_gain_trim.
- *
- * @indio_dev: pointer to IIO device
- */
-static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev)
-{
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- u8 reg_val;
- int gain_trim_val;
- int ret;
- int lux_val;
-
- ret = i2c_smbus_write_byte(chip->client,
- (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
- if (ret < 0) {
- dev_err(&chip->client->dev,
- "failed to write CNTRL register, ret=%d\n", ret);
- return ret;
- }
-
- reg_val = i2c_smbus_read_byte(chip->client);
- if ((reg_val & (TSL2X7X_CNTL_ADC_ENBL | TSL2X7X_CNTL_PWR_ON))
- != (TSL2X7X_CNTL_ADC_ENBL | TSL2X7X_CNTL_PWR_ON)) {
- dev_err(&chip->client->dev,
- "%s: failed: ADC not enabled\n", __func__);
- return -1;
- }
-
- ret = i2c_smbus_write_byte(chip->client,
- (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
- if (ret < 0) {
- dev_err(&chip->client->dev,
- "failed to write ctrl reg: ret=%d\n", ret);
- return ret;
- }
-
- reg_val = i2c_smbus_read_byte(chip->client);
- if ((reg_val & TSL2X7X_STA_ADC_VALID) != TSL2X7X_STA_ADC_VALID) {
- dev_err(&chip->client->dev,
- "%s: failed: STATUS - ADC not valid.\n", __func__);
- return -ENODATA;
- }
-
- lux_val = tsl2x7x_get_lux(indio_dev);
- if (lux_val < 0) {
- dev_err(&chip->client->dev,
- "%s: failed to get lux\n", __func__);
- return lux_val;
- }
-
- gain_trim_val = ((chip->tsl2x7x_settings.als_cal_target)
- * chip->tsl2x7x_settings.als_gain_trim) / lux_val;
- if ((gain_trim_val < 250) || (gain_trim_val > 4000))
- return -ERANGE;
-
- chip->tsl2x7x_settings.als_gain_trim = gain_trim_val;
- dev_info(&chip->client->dev,
- "%s als_calibrate completed\n", chip->client->name);
-
- return (int)gain_trim_val;
-}
-
-static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
-{
- int i;
- int ret = 0;
- u8 *dev_reg;
- u8 utmp;
- int als_count;
- int als_time;
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- u8 reg_val = 0;
-
- if (chip->pdata && chip->pdata->power_on)
- chip->pdata->power_on(indio_dev);
-
- /* Non calculated parameters */
- chip->tsl2x7x_config[TSL2X7X_PRX_TIME] =
- chip->tsl2x7x_settings.prx_time;
- chip->tsl2x7x_config[TSL2X7X_WAIT_TIME] =
- chip->tsl2x7x_settings.wait_time;
- chip->tsl2x7x_config[TSL2X7X_PRX_CONFIG] =
- chip->tsl2x7x_settings.prox_config;
-
- chip->tsl2x7x_config[TSL2X7X_ALS_MINTHRESHLO] =
- (chip->tsl2x7x_settings.als_thresh_low) & 0xFF;
- chip->tsl2x7x_config[TSL2X7X_ALS_MINTHRESHHI] =
- (chip->tsl2x7x_settings.als_thresh_low >> 8) & 0xFF;
- chip->tsl2x7x_config[TSL2X7X_ALS_MAXTHRESHLO] =
- (chip->tsl2x7x_settings.als_thresh_high) & 0xFF;
- chip->tsl2x7x_config[TSL2X7X_ALS_MAXTHRESHHI] =
- (chip->tsl2x7x_settings.als_thresh_high >> 8) & 0xFF;
- chip->tsl2x7x_config[TSL2X7X_PERSISTENCE] =
- chip->tsl2x7x_settings.persistence;
-
- chip->tsl2x7x_config[TSL2X7X_PRX_COUNT] =
- chip->tsl2x7x_settings.prox_pulse_count;
- chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHLO] =
- (chip->tsl2x7x_settings.prox_thres_low) & 0xFF;
- chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHHI] =
- (chip->tsl2x7x_settings.prox_thres_low >> 8) & 0xFF;
- chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHLO] =
- (chip->tsl2x7x_settings.prox_thres_high) & 0xFF;
- chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHHI] =
- (chip->tsl2x7x_settings.prox_thres_high >> 8) & 0xFF;
-
- /* and make sure we're not already on */
- if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
- /* if forcing a register update - turn off, then on */
- dev_info(&chip->client->dev, "device is already enabled\n");
- return -EINVAL;
- }
-
- /* determine als integration register */
- als_count = (chip->tsl2x7x_settings.als_time * 100 + 135) / 270;
- if (!als_count)
- als_count = 1; /* ensure at least one cycle */
-
- /* convert back to time (encompasses overrides) */
- als_time = (als_count * 27 + 5) / 10;
- chip->tsl2x7x_config[TSL2X7X_ALS_TIME] = 256 - als_count;
-
- /* Set the gain based on tsl2x7x_settings struct */
- chip->tsl2x7x_config[TSL2X7X_GAIN] =
- chip->tsl2x7x_settings.als_gain |
- (TSL2X7X_mA100 | TSL2X7X_DIODE1)
- | ((chip->tsl2x7x_settings.prox_gain) << 2);
-
- /* set chip struct re scaling and saturation */
- chip->als_saturation = als_count * 922; /* 90% of full scale */
- chip->als_time_scale = (als_time + 25) / 50;
-
- /*
- * TSL2X7X Specific power-on / adc enable sequence
- * Power on the device 1st.
- */
- utmp = TSL2X7X_CNTL_PWR_ON;
- ret = i2c_smbus_write_byte_data(chip->client,
- TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp);
- if (ret < 0) {
- dev_err(&chip->client->dev,
- "%s: failed on CNTRL reg.\n", __func__);
- return ret;
- }
-
- /*
- * Use the following shadow copy for our delay before enabling ADC.
- * Write all the registers.
- */
- for (i = 0, dev_reg = chip->tsl2x7x_config;
- i < TSL2X7X_MAX_CONFIG_REG; i++) {
- ret = i2c_smbus_write_byte_data(chip->client,
- TSL2X7X_CMD_REG + i,
- *dev_reg++);
- if (ret < 0) {
- dev_err(&chip->client->dev,
- "failed on write to reg %d.\n", i);
- return ret;
- }
- }
-
- mdelay(3); /* Power-on settling time */
-
- /*
- * NOW enable the ADC
- * initialize the desired mode of operation
- */
- utmp = TSL2X7X_CNTL_PWR_ON |
- TSL2X7X_CNTL_ADC_ENBL |
- TSL2X7X_CNTL_PROX_DET_ENBL;
- ret = i2c_smbus_write_byte_data(chip->client,
- TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp);
- if (ret < 0) {
- dev_err(&chip->client->dev,
- "%s: failed on 2nd CTRL reg.\n", __func__);
- return ret;
- }
-
- chip->tsl2x7x_chip_status = TSL2X7X_CHIP_WORKING;
-
- if (chip->tsl2x7x_settings.interrupts_en != 0) {
- dev_info(&chip->client->dev, "Setting Up Interrupt(s)\n");
-
- reg_val = TSL2X7X_CNTL_PWR_ON | TSL2X7X_CNTL_ADC_ENBL;
- if ((chip->tsl2x7x_settings.interrupts_en == 0x20) ||
- (chip->tsl2x7x_settings.interrupts_en == 0x30))
- reg_val |= TSL2X7X_CNTL_PROX_DET_ENBL;
-
- reg_val |= chip->tsl2x7x_settings.interrupts_en;
- ret = i2c_smbus_write_byte_data(chip->client,
- (TSL2X7X_CMD_REG |
- TSL2X7X_CNTRL), reg_val);
- if (ret < 0)
- dev_err(&chip->client->dev,
- "%s: failed in tsl2x7x_IOCTL_INT_SET.\n",
- __func__);
-
- /* Clear out any initial interrupts */
- ret = i2c_smbus_write_byte(chip->client,
- TSL2X7X_CMD_REG |
- TSL2X7X_CMD_SPL_FN |
- TSL2X7X_CMD_PROXALS_INT_CLR);
- if (ret < 0) {
- dev_err(&chip->client->dev,
- "%s: Failed to clear Int status\n",
- __func__);
- return ret;
- }
- }
-
- return ret;
-}
-
-static int tsl2x7x_chip_off(struct iio_dev *indio_dev)
-{
- int ret;
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
- /* turn device off */
- chip->tsl2x7x_chip_status = TSL2X7X_CHIP_SUSPENDED;
-
- ret = i2c_smbus_write_byte_data(chip->client,
- TSL2X7X_CMD_REG | TSL2X7X_CNTRL, 0x00);
-
- if (chip->pdata && chip->pdata->power_off)
- chip->pdata->power_off(chip->client);
-
- return ret;
-}
-
-/**
- * tsl2x7x_invoke_change
- * @indio_dev: pointer to IIO device
- *
- * Obtain and lock both ALS and PROX resources,
- * determine and save device state (On/Off),
- * cycle device to implement updated parameter,
- * put device back into proper state, and unlock
- * resource.
- */
-static
-int tsl2x7x_invoke_change(struct iio_dev *indio_dev)
-{
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- int device_status = chip->tsl2x7x_chip_status;
-
- mutex_lock(&chip->als_mutex);
- mutex_lock(&chip->prox_mutex);
-
- if (device_status == TSL2X7X_CHIP_WORKING)
- tsl2x7x_chip_off(indio_dev);
-
- tsl2x7x_chip_on(indio_dev);
-
- if (device_status != TSL2X7X_CHIP_WORKING)
- tsl2x7x_chip_off(indio_dev);
-
- mutex_unlock(&chip->prox_mutex);
- mutex_unlock(&chip->als_mutex);
-
- return 0;
-}
-
-static
-void tsl2x7x_prox_calculate(int *data, int length,
- struct tsl2x7x_prox_stat *statP)
-{
- int i;
- int sample_sum;
- int tmp;
-
- if (!length)
- length = 1;
-
- sample_sum = 0;
- statP->min = INT_MAX;
- statP->max = INT_MIN;
- for (i = 0; i < length; i++) {
- sample_sum += data[i];
- statP->min = min(statP->min, data[i]);
- statP->max = max(statP->max, data[i]);
- }
-
- statP->mean = sample_sum / length;
- sample_sum = 0;
- for (i = 0; i < length; i++) {
- tmp = data[i] - statP->mean;
- sample_sum += tmp * tmp;
- }
- statP->stddev = int_sqrt((long)sample_sum / length);
-}
-
-/**
- * tsl2x7x_prox_cal() - Calculates std. and sets thresholds.
- * @indio_dev: pointer to IIO device
- *
- * Calculates a standard deviation based on the samples,
- * and sets the threshold accordingly.
- */
-static void tsl2x7x_prox_cal(struct iio_dev *indio_dev)
-{
- int prox_history[MAX_SAMPLES_CAL + 1];
- int i;
- struct tsl2x7x_prox_stat prox_stat_data[2];
- struct tsl2x7x_prox_stat *calP;
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- u8 tmp_irq_settings;
- u8 current_state = chip->tsl2x7x_chip_status;
-
- if (chip->tsl2x7x_settings.prox_max_samples_cal > MAX_SAMPLES_CAL) {
- dev_err(&chip->client->dev,
- "max prox samples cal is too big: %d\n",
- chip->tsl2x7x_settings.prox_max_samples_cal);
- chip->tsl2x7x_settings.prox_max_samples_cal = MAX_SAMPLES_CAL;
- }
-
- /* have to stop to change settings */
- tsl2x7x_chip_off(indio_dev);
-
- /* Enable proximity detection save just in case prox not wanted yet*/
- tmp_irq_settings = chip->tsl2x7x_settings.interrupts_en;
- chip->tsl2x7x_settings.interrupts_en |= TSL2X7X_CNTL_PROX_INT_ENBL;
-
- /*turn on device if not already on*/
- tsl2x7x_chip_on(indio_dev);
-
- /*gather the samples*/
- for (i = 0; i < chip->tsl2x7x_settings.prox_max_samples_cal; i++) {
- mdelay(15);
- tsl2x7x_get_prox(indio_dev);
- prox_history[i] = chip->prox_data;
- dev_info(&chip->client->dev, "2 i=%d prox data= %d\n",
- i, chip->prox_data);
- }
-
- tsl2x7x_chip_off(indio_dev);
- calP = &prox_stat_data[PROX_STAT_CAL];
- tsl2x7x_prox_calculate(prox_history,
- chip->tsl2x7x_settings.prox_max_samples_cal,
- calP);
- chip->tsl2x7x_settings.prox_thres_high = (calP->max << 1) - calP->mean;
-
- dev_info(&chip->client->dev, " cal min=%d mean=%d max=%d\n",
- calP->min, calP->mean, calP->max);
- dev_info(&chip->client->dev,
- "%s proximity threshold set to %d\n",
- chip->client->name, chip->tsl2x7x_settings.prox_thres_high);
-
- /* back to the way they were */
- chip->tsl2x7x_settings.interrupts_en = tmp_irq_settings;
- if (current_state == TSL2X7X_CHIP_WORKING)
- tsl2x7x_chip_on(indio_dev);
-}
-
-static ssize_t tsl2x7x_power_state_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-
- return snprintf(buf, PAGE_SIZE, "%d\n", chip->tsl2x7x_chip_status);
-}
-
-static ssize_t tsl2x7x_power_state_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
- bool value;
-
- if (strtobool(buf, &value))
- return -EINVAL;
-
- if (value)
- tsl2x7x_chip_on(indio_dev);
- else
- tsl2x7x_chip_off(indio_dev);
-
- return len;
-}
-
-static ssize_t tsl2x7x_gain_available_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-
- switch (chip->id) {
- case tsl2571:
- case tsl2671:
- case tmd2671:
- case tsl2771:
- case tmd2771:
- return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 128");
- }
-
- return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 120");
-}
-
-static ssize_t tsl2x7x_prox_gain_available_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return snprintf(buf, PAGE_SIZE, "%s\n", "1 2 4 8");
-}
-
-static ssize_t tsl2x7x_als_time_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
- int y, z;
-
- y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
- z = y * TSL2X7X_MIN_ITIME;
- y /= 1000;
- z %= 1000;
-
- return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
-}
-
-static ssize_t tsl2x7x_als_time_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- struct tsl2x7x_parse_result result;
- int ret;
-
- ret = iio_str_to_fixpoint(buf, 100, &result.integer, &result.fract);
- if (ret)
- return ret;
-
- result.fract /= 3;
- chip->tsl2x7x_settings.als_time =
- TSL2X7X_MAX_TIMER_CNT - (u8)result.fract;
-
- dev_info(&chip->client->dev, "%s: als time = %d",
- __func__, chip->tsl2x7x_settings.als_time);
-
- tsl2x7x_invoke_change(indio_dev);
-
- return IIO_VAL_INT_PLUS_MICRO;
-}
-
-static IIO_CONST_ATTR(in_illuminance0_integration_time_available,
- ".00272 - .696");
-
-static ssize_t tsl2x7x_als_cal_target_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-
- return snprintf(buf, PAGE_SIZE, "%d\n",
- chip->tsl2x7x_settings.als_cal_target);
-}
-
-static ssize_t tsl2x7x_als_cal_target_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- unsigned long value;
-
- if (kstrtoul(buf, 0, &value))
- return -EINVAL;
-
- if (value)
- chip->tsl2x7x_settings.als_cal_target = value;
-
- tsl2x7x_invoke_change(indio_dev);
-
- return len;
-}
-
-/* persistence settings */
-static ssize_t tsl2x7x_als_persistence_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
- int y, z, filter_delay;
-
- /* Determine integration time */
- y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
- z = y * TSL2X7X_MIN_ITIME;
- filter_delay = z * (chip->tsl2x7x_settings.persistence & 0x0F);
- y = filter_delay / 1000;
- z = filter_delay % 1000;
-
- return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
-}
-
-static ssize_t tsl2x7x_als_persistence_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- struct tsl2x7x_parse_result result;
- int y, z, filter_delay;
- int ret;
-
- ret = iio_str_to_fixpoint(buf, 100, &result.integer, &result.fract);
- if (ret)
- return ret;
-
- y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
- z = y * TSL2X7X_MIN_ITIME;
-
- filter_delay =
- DIV_ROUND_UP((result.integer * 1000) + result.fract, z);
-
- chip->tsl2x7x_settings.persistence &= 0xF0;
- chip->tsl2x7x_settings.persistence |= (filter_delay & 0x0F);
-
- dev_info(&chip->client->dev, "%s: als persistence = %d",
- __func__, filter_delay);
-
- tsl2x7x_invoke_change(indio_dev);
-
- return IIO_VAL_INT_PLUS_MICRO;
-}
-
-static ssize_t tsl2x7x_prox_persistence_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
- int y, z, filter_delay;
-
- /* Determine integration time */
- y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.prx_time) + 1;
- z = y * TSL2X7X_MIN_ITIME;
- filter_delay = z * ((chip->tsl2x7x_settings.persistence & 0xF0) >> 4);
- y = filter_delay / 1000;
- z = filter_delay % 1000;
-
- return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
-}
-
-static ssize_t tsl2x7x_prox_persistence_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- struct tsl2x7x_parse_result result;
- int y, z, filter_delay;
- int ret;
-
- ret = iio_str_to_fixpoint(buf, 100, &result.integer, &result.fract);
- if (ret)
- return ret;
-
- y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.prx_time) + 1;
- z = y * TSL2X7X_MIN_ITIME;
-
- filter_delay =
- DIV_ROUND_UP((result.integer * 1000) + result.fract, z);
-
- chip->tsl2x7x_settings.persistence &= 0x0F;
- chip->tsl2x7x_settings.persistence |= ((filter_delay << 4) & 0xF0);
-
- dev_info(&chip->client->dev, "%s: prox persistence = %d",
- __func__, filter_delay);
-
- tsl2x7x_invoke_change(indio_dev);
-
- return IIO_VAL_INT_PLUS_MICRO;
-}
-
-static ssize_t tsl2x7x_do_calibrate(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
- bool value;
-
- if (strtobool(buf, &value))
- return -EINVAL;
-
- if (value)
- tsl2x7x_als_calibrate(indio_dev);
-
- tsl2x7x_invoke_change(indio_dev);
-
- return len;
-}
-
-static ssize_t tsl2x7x_luxtable_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
- int i = 0;
- int offset = 0;
-
- while (i < (TSL2X7X_MAX_LUX_TABLE_SIZE * 3)) {
- offset += snprintf(buf + offset, PAGE_SIZE, "%u,%u,%u,",
- chip->tsl2x7x_device_lux[i].ratio,
- chip->tsl2x7x_device_lux[i].ch0,
- chip->tsl2x7x_device_lux[i].ch1);
- if (chip->tsl2x7x_device_lux[i].ratio == 0) {
- /*
- * We just printed the first "0" entry.
- * Now get rid of the extra "," and break.
- */
- offset--;
- break;
- }
- i++;
- }
-
- offset += snprintf(buf + offset, PAGE_SIZE, "\n");
- return offset;
-}
-
-static ssize_t tsl2x7x_luxtable_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- int value[ARRAY_SIZE(chip->tsl2x7x_device_lux) * 3 + 1];
- int n;
-
- get_options(buf, ARRAY_SIZE(value), value);
-
- /* We now have an array of ints starting at value[1], and
- * enumerated by value[0].
- * We expect each group of three ints is one table entry,
- * and the last table entry is all 0.
- */
- n = value[0];
- if ((n % 3) || n < 6 ||
- n > ((ARRAY_SIZE(chip->tsl2x7x_device_lux) - 1) * 3)) {
- dev_info(dev, "LUX TABLE INPUT ERROR 1 Value[0]=%d\n", n);
- return -EINVAL;
- }
-
- if ((value[(n - 2)] | value[(n - 1)] | value[n]) != 0) {
- dev_info(dev, "LUX TABLE INPUT ERROR 2 Value[0]=%d\n", n);
- return -EINVAL;
- }
-
- if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING)
- tsl2x7x_chip_off(indio_dev);
-
- /* Zero out the table */
- memset(chip->tsl2x7x_device_lux, 0, sizeof(chip->tsl2x7x_device_lux));
- memcpy(chip->tsl2x7x_device_lux, &value[1], (value[0] * 4));
-
- tsl2x7x_invoke_change(indio_dev);
-
- return len;
-}
-
-static ssize_t tsl2x7x_do_prox_calibrate(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
-{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
- bool value;
-
- if (strtobool(buf, &value))
- return -EINVAL;
-
- if (value)
- tsl2x7x_prox_cal(indio_dev);
-
- tsl2x7x_invoke_change(indio_dev);
-
- return len;
-}
-
-static int tsl2x7x_read_interrupt_config(struct iio_dev *indio_dev,
- const struct iio_chan_spec *chan,
- enum iio_event_type type,
- enum iio_event_direction dir)
-{
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- int ret;
-
- if (chan->type == IIO_INTENSITY)
- ret = !!(chip->tsl2x7x_settings.interrupts_en & 0x10);
- else
- ret = !!(chip->tsl2x7x_settings.interrupts_en & 0x20);
-
- return ret;
-}
-
-static int tsl2x7x_write_interrupt_config(struct iio_dev *indio_dev,
- const struct iio_chan_spec *chan,
- enum iio_event_type type,
- enum iio_event_direction dir,
- int val)
-{
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
- if (chan->type == IIO_INTENSITY) {
- if (val)
- chip->tsl2x7x_settings.interrupts_en |= 0x10;
- else
- chip->tsl2x7x_settings.interrupts_en &= 0x20;
- } else {
- if (val)
- chip->tsl2x7x_settings.interrupts_en |= 0x20;
- else
- chip->tsl2x7x_settings.interrupts_en &= 0x10;
- }
-
- tsl2x7x_invoke_change(indio_dev);
-
- return 0;
-}
-
-static int tsl2x7x_write_thresh(struct iio_dev *indio_dev,
- const struct iio_chan_spec *chan,
- enum iio_event_type type,
- enum iio_event_direction dir,
- enum iio_event_info info,
- int val, int val2)
-{
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
- if (chan->type == IIO_INTENSITY) {
- switch (dir) {
- case IIO_EV_DIR_RISING:
- chip->tsl2x7x_settings.als_thresh_high = val;
- break;
- case IIO_EV_DIR_FALLING:
- chip->tsl2x7x_settings.als_thresh_low = val;
- break;
- default:
- return -EINVAL;
- }
- } else {
- switch (dir) {
- case IIO_EV_DIR_RISING:
- chip->tsl2x7x_settings.prox_thres_high = val;
- break;
- case IIO_EV_DIR_FALLING:
- chip->tsl2x7x_settings.prox_thres_low = val;
- break;
- default:
- return -EINVAL;
- }
- }
-
- tsl2x7x_invoke_change(indio_dev);
-
- return 0;
-}
-
-static int tsl2x7x_read_thresh(struct iio_dev *indio_dev,
- const struct iio_chan_spec *chan,
- enum iio_event_type type,
- enum iio_event_direction dir,
- enum iio_event_info info,
- int *val, int *val2)
-{
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
- if (chan->type == IIO_INTENSITY) {
- switch (dir) {
- case IIO_EV_DIR_RISING:
- *val = chip->tsl2x7x_settings.als_thresh_high;
- break;
- case IIO_EV_DIR_FALLING:
- *val = chip->tsl2x7x_settings.als_thresh_low;
- break;
- default:
- return -EINVAL;
- }
- } else {
- switch (dir) {
- case IIO_EV_DIR_RISING:
- *val = chip->tsl2x7x_settings.prox_thres_high;
- break;
- case IIO_EV_DIR_FALLING:
- *val = chip->tsl2x7x_settings.prox_thres_low;
- break;
- default:
- return -EINVAL;
- }
- }
-
- return IIO_VAL_INT;
-}
-
-static int tsl2x7x_read_raw(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan,
- int *val,
- int *val2,
- long mask)
-{
- int ret = -EINVAL;
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
- switch (mask) {
- case IIO_CHAN_INFO_PROCESSED:
- switch (chan->type) {
- case IIO_LIGHT:
- tsl2x7x_get_lux(indio_dev);
- *val = chip->als_cur_info.lux;
- ret = IIO_VAL_INT;
- break;
- default:
- return -EINVAL;
- }
- break;
- case IIO_CHAN_INFO_RAW:
- switch (chan->type) {
- case IIO_INTENSITY:
- tsl2x7x_get_lux(indio_dev);
- if (chan->channel == 0)
- *val = chip->als_cur_info.als_ch0;
- else
- *val = chip->als_cur_info.als_ch1;
- ret = IIO_VAL_INT;
- break;
- case IIO_PROXIMITY:
- tsl2x7x_get_prox(indio_dev);
- *val = chip->prox_data;
- ret = IIO_VAL_INT;
- break;
- default:
- return -EINVAL;
- }
- break;
- case IIO_CHAN_INFO_CALIBSCALE:
- if (chan->type == IIO_LIGHT)
- *val =
- tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain];
- else
- *val =
- tsl2X7X_prx_gainadj[chip->tsl2x7x_settings.prox_gain];
- ret = IIO_VAL_INT;
- break;
- case IIO_CHAN_INFO_CALIBBIAS:
- *val = chip->tsl2x7x_settings.als_gain_trim;
- ret = IIO_VAL_INT;
- break;
-
- default:
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan,
- int val,
- int val2,
- long mask)
-{
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-
- switch (mask) {
- case IIO_CHAN_INFO_CALIBSCALE:
- if (chan->type == IIO_INTENSITY) {
- switch (val) {
- case 1:
- chip->tsl2x7x_settings.als_gain = 0;
- break;
- case 8:
- chip->tsl2x7x_settings.als_gain = 1;
- break;
- case 16:
- chip->tsl2x7x_settings.als_gain = 2;
- break;
- case 120:
- switch (chip->id) {
- case tsl2572:
- case tsl2672:
- case tmd2672:
- case tsl2772:
- case tmd2772:
- return -EINVAL;
- }
- chip->tsl2x7x_settings.als_gain = 3;
- break;
- case 128:
- switch (chip->id) {
- case tsl2571:
- case tsl2671:
- case tmd2671:
- case tsl2771:
- case tmd2771:
- return -EINVAL;
- }
- chip->tsl2x7x_settings.als_gain = 3;
- break;
- default:
- return -EINVAL;
- }
- } else {
- switch (val) {
- case 1:
- chip->tsl2x7x_settings.prox_gain = 0;
- break;
- case 2:
- chip->tsl2x7x_settings.prox_gain = 1;
- break;
- case 4:
- chip->tsl2x7x_settings.prox_gain = 2;
- break;
- case 8:
- chip->tsl2x7x_settings.prox_gain = 3;
- break;
- default:
- return -EINVAL;
- }
- }
- break;
- case IIO_CHAN_INFO_CALIBBIAS:
- chip->tsl2x7x_settings.als_gain_trim = val;
- break;
-
- default:
- return -EINVAL;
- }
-
- tsl2x7x_invoke_change(indio_dev);
-
- return 0;
-}
-
-static DEVICE_ATTR(power_state, S_IRUGO | S_IWUSR,
- tsl2x7x_power_state_show, tsl2x7x_power_state_store);
-
-static DEVICE_ATTR(in_proximity0_calibscale_available, S_IRUGO,
- tsl2x7x_prox_gain_available_show, NULL);
-
-static DEVICE_ATTR(in_illuminance0_calibscale_available, S_IRUGO,
- tsl2x7x_gain_available_show, NULL);
-
-static DEVICE_ATTR(in_illuminance0_integration_time, S_IRUGO | S_IWUSR,
- tsl2x7x_als_time_show, tsl2x7x_als_time_store);
-
-static DEVICE_ATTR(in_illuminance0_target_input, S_IRUGO | S_IWUSR,
- tsl2x7x_als_cal_target_show, tsl2x7x_als_cal_target_store);
-
-static DEVICE_ATTR(in_illuminance0_calibrate, S_IWUSR, NULL,
- tsl2x7x_do_calibrate);
-
-static DEVICE_ATTR(in_proximity0_calibrate, S_IWUSR, NULL,
- tsl2x7x_do_prox_calibrate);
-
-static DEVICE_ATTR(in_illuminance0_lux_table, S_IRUGO | S_IWUSR,
- tsl2x7x_luxtable_show, tsl2x7x_luxtable_store);
-
-static DEVICE_ATTR(in_intensity0_thresh_period, S_IRUGO | S_IWUSR,
- tsl2x7x_als_persistence_show, tsl2x7x_als_persistence_store);
-
-static DEVICE_ATTR(in_proximity0_thresh_period, S_IRUGO | S_IWUSR,
- tsl2x7x_prox_persistence_show, tsl2x7x_prox_persistence_store);
-
-/* Use the default register values to identify the Taos device */
-static int tsl2x7x_device_id(unsigned char *id, int target)
-{
- switch (target) {
- case tsl2571:
- case tsl2671:
- case tsl2771:
- return (*id & 0xf0) == TRITON_ID;
- case tmd2671:
- case tmd2771:
- return (*id & 0xf0) == HALIBUT_ID;
- case tsl2572:
- case tsl2672:
- case tmd2672:
- case tsl2772:
- case tmd2772:
- return (*id & 0xf0) == SWORDFISH_ID;
- }
-
- return -EINVAL;
-}
-
-static irqreturn_t tsl2x7x_event_handler(int irq, void *private)
-{
- struct iio_dev *indio_dev = private;
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- s64 timestamp = iio_get_time_ns(indio_dev);
- int ret;
- u8 value;
-
- value = i2c_smbus_read_byte_data(chip->client,
- TSL2X7X_CMD_REG | TSL2X7X_STATUS);
-
- /* What type of interrupt do we need to process */
- if (value & TSL2X7X_STA_PRX_INTR) {
- tsl2x7x_get_prox(indio_dev); /* freshen data for ABI */
- iio_push_event(indio_dev,
- IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY,
- 0,
- IIO_EV_TYPE_THRESH,
- IIO_EV_DIR_EITHER),
- timestamp);
- }
-
- if (value & TSL2X7X_STA_ALS_INTR) {
- tsl2x7x_get_lux(indio_dev); /* freshen data for ABI */
- iio_push_event(indio_dev,
- IIO_UNMOD_EVENT_CODE(IIO_LIGHT,
- 0,
- IIO_EV_TYPE_THRESH,
- IIO_EV_DIR_EITHER),
- timestamp);
- }
- /* Clear interrupt now that we have handled it. */
- ret = i2c_smbus_write_byte(chip->client,
- TSL2X7X_CMD_REG | TSL2X7X_CMD_SPL_FN |
- TSL2X7X_CMD_PROXALS_INT_CLR);
- if (ret < 0)
- dev_err(&chip->client->dev,
- "Failed to clear irq from event handler. err = %d\n",
- ret);
-
- return IRQ_HANDLED;
-}
-
-static struct attribute *tsl2x7x_ALS_device_attrs[] = {
- &dev_attr_power_state.attr,
- &dev_attr_in_illuminance0_calibscale_available.attr,
- &dev_attr_in_illuminance0_integration_time.attr,
- &iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr,
- &dev_attr_in_illuminance0_target_input.attr,
- &dev_attr_in_illuminance0_calibrate.attr,
- &dev_attr_in_illuminance0_lux_table.attr,
- NULL
-};
-
-static struct attribute *tsl2x7x_PRX_device_attrs[] = {
- &dev_attr_power_state.attr,
- &dev_attr_in_proximity0_calibrate.attr,
- NULL
-};
-
-static struct attribute *tsl2x7x_ALSPRX_device_attrs[] = {
- &dev_attr_power_state.attr,
- &dev_attr_in_illuminance0_calibscale_available.attr,
- &dev_attr_in_illuminance0_integration_time.attr,
- &iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr,
- &dev_attr_in_illuminance0_target_input.attr,
- &dev_attr_in_illuminance0_calibrate.attr,
- &dev_attr_in_illuminance0_lux_table.attr,
- &dev_attr_in_proximity0_calibrate.attr,
- NULL
-};
-
-static struct attribute *tsl2x7x_PRX2_device_attrs[] = {
- &dev_attr_power_state.attr,
- &dev_attr_in_proximity0_calibrate.attr,
- &dev_attr_in_proximity0_calibscale_available.attr,
- NULL
-};
-
-static struct attribute *tsl2x7x_ALSPRX2_device_attrs[] = {
- &dev_attr_power_state.attr,
- &dev_attr_in_illuminance0_calibscale_available.attr,
- &dev_attr_in_illuminance0_integration_time.attr,
- &iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr,
- &dev_attr_in_illuminance0_target_input.attr,
- &dev_attr_in_illuminance0_calibrate.attr,
- &dev_attr_in_illuminance0_lux_table.attr,
- &dev_attr_in_proximity0_calibrate.attr,
- &dev_attr_in_proximity0_calibscale_available.attr,
- NULL
-};
-
-static struct attribute *tsl2X7X_ALS_event_attrs[] = {
- &dev_attr_in_intensity0_thresh_period.attr,
- NULL,
-};
-
-static struct attribute *tsl2X7X_PRX_event_attrs[] = {
- &dev_attr_in_proximity0_thresh_period.attr,
- NULL,
-};
-
-static struct attribute *tsl2X7X_ALSPRX_event_attrs[] = {
- &dev_attr_in_intensity0_thresh_period.attr,
- &dev_attr_in_proximity0_thresh_period.attr,
- NULL,
-};
-
-static const struct attribute_group tsl2X7X_device_attr_group_tbl[] = {
- [ALS] = {
- .attrs = tsl2x7x_ALS_device_attrs,
- },
- [PRX] = {
- .attrs = tsl2x7x_PRX_device_attrs,
- },
- [ALSPRX] = {
- .attrs = tsl2x7x_ALSPRX_device_attrs,
- },
- [PRX2] = {
- .attrs = tsl2x7x_PRX2_device_attrs,
- },
- [ALSPRX2] = {
- .attrs = tsl2x7x_ALSPRX2_device_attrs,
- },
-};
-
-static const struct attribute_group tsl2X7X_event_attr_group_tbl[] = {
- [ALS] = {
- .attrs = tsl2X7X_ALS_event_attrs,
- .name = "events",
- },
- [PRX] = {
- .attrs = tsl2X7X_PRX_event_attrs,
- .name = "events",
- },
- [ALSPRX] = {
- .attrs = tsl2X7X_ALSPRX_event_attrs,
- .name = "events",
- },
-};
-
-static const struct iio_info tsl2X7X_device_info[] = {
- [ALS] = {
- .attrs = &tsl2X7X_device_attr_group_tbl[ALS],
- .event_attrs = &tsl2X7X_event_attr_group_tbl[ALS],
- .driver_module = THIS_MODULE,
- .read_raw = &tsl2x7x_read_raw,
- .write_raw = &tsl2x7x_write_raw,
- .read_event_value = &tsl2x7x_read_thresh,
- .write_event_value = &tsl2x7x_write_thresh,
- .read_event_config = &tsl2x7x_read_interrupt_config,
- .write_event_config = &tsl2x7x_write_interrupt_config,
- },
- [PRX] = {
- .attrs = &tsl2X7X_device_attr_group_tbl[PRX],
- .event_attrs = &tsl2X7X_event_attr_group_tbl[PRX],
- .driver_module = THIS_MODULE,
- .read_raw = &tsl2x7x_read_raw,
- .write_raw = &tsl2x7x_write_raw,
- .read_event_value = &tsl2x7x_read_thresh,
- .write_event_value = &tsl2x7x_write_thresh,
- .read_event_config = &tsl2x7x_read_interrupt_config,
- .write_event_config = &tsl2x7x_write_interrupt_config,
- },
- [ALSPRX] = {
- .attrs = &tsl2X7X_device_attr_group_tbl[ALSPRX],
- .event_attrs = &tsl2X7X_event_attr_group_tbl[ALSPRX],
- .driver_module = THIS_MODULE,
- .read_raw = &tsl2x7x_read_raw,
- .write_raw = &tsl2x7x_write_raw,
- .read_event_value = &tsl2x7x_read_thresh,
- .write_event_value = &tsl2x7x_write_thresh,
- .read_event_config = &tsl2x7x_read_interrupt_config,
- .write_event_config = &tsl2x7x_write_interrupt_config,
- },
- [PRX2] = {
- .attrs = &tsl2X7X_device_attr_group_tbl[PRX2],
- .event_attrs = &tsl2X7X_event_attr_group_tbl[PRX],
- .driver_module = THIS_MODULE,
- .read_raw = &tsl2x7x_read_raw,
- .write_raw = &tsl2x7x_write_raw,
- .read_event_value = &tsl2x7x_read_thresh,
- .write_event_value = &tsl2x7x_write_thresh,
- .read_event_config = &tsl2x7x_read_interrupt_config,
- .write_event_config = &tsl2x7x_write_interrupt_config,
- },
- [ALSPRX2] = {
- .attrs = &tsl2X7X_device_attr_group_tbl[ALSPRX2],
- .event_attrs = &tsl2X7X_event_attr_group_tbl[ALSPRX],
- .driver_module = THIS_MODULE,
- .read_raw = &tsl2x7x_read_raw,
- .write_raw = &tsl2x7x_write_raw,
- .read_event_value = &tsl2x7x_read_thresh,
- .write_event_value = &tsl2x7x_write_thresh,
- .read_event_config = &tsl2x7x_read_interrupt_config,
- .write_event_config = &tsl2x7x_write_interrupt_config,
- },
-};
-
-static const struct iio_event_spec tsl2x7x_events[] = {
- {
- .type = IIO_EV_TYPE_THRESH,
- .dir = IIO_EV_DIR_RISING,
- .mask_separate = BIT(IIO_EV_INFO_VALUE) |
- BIT(IIO_EV_INFO_ENABLE),
- }, {
- .type = IIO_EV_TYPE_THRESH,
- .dir = IIO_EV_DIR_FALLING,
- .mask_separate = BIT(IIO_EV_INFO_VALUE) |
- BIT(IIO_EV_INFO_ENABLE),
- },
-};
-
-static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
- [ALS] = {
- .channel = {
- {
- .type = IIO_LIGHT,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
- }, {
- .type = IIO_INTENSITY,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_CALIBSCALE) |
- BIT(IIO_CHAN_INFO_CALIBBIAS),
- .event_spec = tsl2x7x_events,
- .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
- }, {
- .type = IIO_INTENSITY,
- .indexed = 1,
- .channel = 1,
- },
- },
- .chan_table_elements = 3,
- .info = &tsl2X7X_device_info[ALS],
- },
- [PRX] = {
- .channel = {
- {
- .type = IIO_PROXIMITY,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
- .event_spec = tsl2x7x_events,
- .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
- },
- },
- .chan_table_elements = 1,
- .info = &tsl2X7X_device_info[PRX],
- },
- [ALSPRX] = {
- .channel = {
- {
- .type = IIO_LIGHT,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED)
- }, {
- .type = IIO_INTENSITY,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_CALIBSCALE) |
- BIT(IIO_CHAN_INFO_CALIBBIAS),
- .event_spec = tsl2x7x_events,
- .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
- }, {
- .type = IIO_INTENSITY,
- .indexed = 1,
- .channel = 1,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
- }, {
- .type = IIO_PROXIMITY,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
- .event_spec = tsl2x7x_events,
- .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
- },
- },
- .chan_table_elements = 4,
- .info = &tsl2X7X_device_info[ALSPRX],
- },
- [PRX2] = {
- .channel = {
- {
- .type = IIO_PROXIMITY,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_CALIBSCALE),
- .event_spec = tsl2x7x_events,
- .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
- },
- },
- .chan_table_elements = 1,
- .info = &tsl2X7X_device_info[PRX2],
- },
- [ALSPRX2] = {
- .channel = {
- {
- .type = IIO_LIGHT,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
- }, {
- .type = IIO_INTENSITY,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_CALIBSCALE) |
- BIT(IIO_CHAN_INFO_CALIBBIAS),
- .event_spec = tsl2x7x_events,
- .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
- }, {
- .type = IIO_INTENSITY,
- .indexed = 1,
- .channel = 1,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
- }, {
- .type = IIO_PROXIMITY,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
- BIT(IIO_CHAN_INFO_CALIBSCALE),
- .event_spec = tsl2x7x_events,
- .num_event_specs = ARRAY_SIZE(tsl2x7x_events),
- },
- },
- .chan_table_elements = 4,
- .info = &tsl2X7X_device_info[ALSPRX2],
- },
-};
-
-static int tsl2x7x_probe(struct i2c_client *clientp,
- const struct i2c_device_id *id)
-{
- int ret;
- unsigned char device_id;
- struct iio_dev *indio_dev;
- struct tsl2X7X_chip *chip;
-
- indio_dev = devm_iio_device_alloc(&clientp->dev, sizeof(*chip));
- if (!indio_dev)
- return -ENOMEM;
-
- chip = iio_priv(indio_dev);
- chip->client = clientp;
- i2c_set_clientdata(clientp, indio_dev);
-
- ret = tsl2x7x_i2c_read(chip->client,
- TSL2X7X_CHIPID, &device_id);
- if (ret < 0)
- return ret;
-
- if ((!tsl2x7x_device_id(&device_id, id->driver_data)) ||
- (tsl2x7x_device_id(&device_id, id->driver_data) == -EINVAL)) {
- dev_info(&chip->client->dev,
- "%s: i2c device found does not match expected id\n",
- __func__);
- return -EINVAL;
- }
-
- ret = i2c_smbus_write_byte(clientp, (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
- if (ret < 0) {
- dev_err(&clientp->dev, "write to cmd reg failed. err = %d\n",
- ret);
- return ret;
- }
-
- /*
- * ALS and PROX functions can be invoked via user space poll
- * or H/W interrupt. If busy return last sample.
- */
- mutex_init(&chip->als_mutex);
- mutex_init(&chip->prox_mutex);
-
- chip->tsl2x7x_chip_status = TSL2X7X_CHIP_UNKNOWN;
- chip->pdata = dev_get_platdata(&clientp->dev);
- chip->id = id->driver_data;
- chip->chip_info =
- &tsl2x7x_chip_info_tbl[device_channel_config[id->driver_data]];
-
- indio_dev->info = chip->chip_info->info;
- indio_dev->dev.parent = &clientp->dev;
- indio_dev->modes = INDIO_DIRECT_MODE;
- indio_dev->name = chip->client->name;
- indio_dev->channels = chip->chip_info->channel;
- indio_dev->num_channels = chip->chip_info->chan_table_elements;
-
- if (clientp->irq) {
- ret = devm_request_threaded_irq(&clientp->dev, clientp->irq,
- NULL,
- &tsl2x7x_event_handler,
- IRQF_TRIGGER_RISING |
- IRQF_ONESHOT,
- "TSL2X7X_event",
- indio_dev);
- if (ret) {
- dev_err(&clientp->dev,
- "%s: irq request failed", __func__);
- return ret;
- }
- }
-
- /* Load up the defaults */
- tsl2x7x_defaults(chip);
- /* Make sure the chip is on */
- tsl2x7x_chip_on(indio_dev);
-
- ret = iio_device_register(indio_dev);
- if (ret) {
- dev_err(&clientp->dev,
- "%s: iio registration failed\n", __func__);
- return ret;
- }
-
- dev_info(&clientp->dev, "%s Light sensor found.\n", id->name);
-
- return 0;
-}
-
-static int tsl2x7x_suspend(struct device *dev)
-{
- struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- int ret = 0;
-
- if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
- ret = tsl2x7x_chip_off(indio_dev);
- chip->tsl2x7x_chip_status = TSL2X7X_CHIP_SUSPENDED;
- }
-
- if (chip->pdata && chip->pdata->platform_power) {
- pm_message_t pmm = {PM_EVENT_SUSPEND};
-
- chip->pdata->platform_power(dev, pmm);
- }
-
- return ret;
-}
-
-static int tsl2x7x_resume(struct device *dev)
-{
- struct iio_dev *indio_dev = dev_get_drvdata(dev);
- struct tsl2X7X_chip *chip = iio_priv(indio_dev);
- int ret = 0;
-
- if (chip->pdata && chip->pdata->platform_power) {
- pm_message_t pmm = {PM_EVENT_RESUME};
-
- chip->pdata->platform_power(dev, pmm);
- }
-
- if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_SUSPENDED)
- ret = tsl2x7x_chip_on(indio_dev);
-
- return ret;
-}
-
-static int tsl2x7x_remove(struct i2c_client *client)
-{
- struct iio_dev *indio_dev = i2c_get_clientdata(client);
-
- tsl2x7x_chip_off(indio_dev);
-
- iio_device_unregister(indio_dev);
-
- return 0;
-}
-
-static struct i2c_device_id tsl2x7x_idtable[] = {
- { "tsl2571", tsl2571 },
- { "tsl2671", tsl2671 },
- { "tmd2671", tmd2671 },
- { "tsl2771", tsl2771 },
- { "tmd2771", tmd2771 },
- { "tsl2572", tsl2572 },
- { "tsl2672", tsl2672 },
- { "tmd2672", tmd2672 },
- { "tsl2772", tsl2772 },
- { "tmd2772", tmd2772 },
- {}
-};
-
-MODULE_DEVICE_TABLE(i2c, tsl2x7x_idtable);
-
-static const struct dev_pm_ops tsl2x7x_pm_ops = {
- .suspend = tsl2x7x_suspend,
- .resume = tsl2x7x_resume,
-};
-
-/* Driver definition */
-static struct i2c_driver tsl2x7x_driver = {
- .driver = {
- .name = "tsl2x7x",
- .pm = &tsl2x7x_pm_ops,
- },
- .id_table = tsl2x7x_idtable,
- .probe = tsl2x7x_probe,
- .remove = tsl2x7x_remove,
-};
-
-module_i2c_driver(tsl2x7x_driver);
-
-MODULE_AUTHOR("J. August Brenner<jbrenner@taosinc.com>");
-MODULE_DESCRIPTION("TAOS tsl2x7x ambient and proximity light sensor driver");
-MODULE_LICENSE("GPL");
return ret;
}
-static int ade7753_spi_write_reg_16(struct device *dev,
- u8 reg_address,
- u16 value)
+static int ade7753_spi_write_reg_16(struct device *dev, u8 reg_address,
+ u16 value)
{
int ret;
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
}
static int ade7753_spi_read_reg_8(struct device *dev,
- u8 reg_address,
- u8 *val)
+ u8 reg_address,
+ u8 *val)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ade7753_state *st = iio_priv(indio_dev);
ret = spi_w8r8(st->us, ADE7753_READ_REG(reg_address));
if (ret < 0) {
dev_err(&st->us->dev, "problem when reading 8 bit register 0x%02X",
- reg_address);
+ reg_address);
return ret;
}
*val = ret;
}
static int ade7753_spi_read_reg_16(struct device *dev,
- u8 reg_address,
- u16 *val)
+ u8 reg_address,
+ u16 *val)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ade7753_state *st = iio_priv(indio_dev);
}
static int ade7753_spi_read_reg_24(struct device *dev,
- u8 reg_address,
- u32 *val)
+ u8 reg_address,
+ u32 *val)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ade7753_state *st = iio_priv(indio_dev);
ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
if (ret) {
dev_err(&st->us->dev, "problem when reading 24 bit register 0x%02X",
- reg_address);
+ reg_address);
goto error_ret;
}
*val = (st->rx[0] << 16) | (st->rx[1] << 8) | st->rx[2];
}
static ssize_t ade7753_read_8bit(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
int ret;
u8 val;
}
static ssize_t ade7753_read_16bit(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
int ret;
u16 val;
}
static ssize_t ade7753_read_24bit(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
int ret;
u32 val;
}
static ssize_t ade7753_write_8bit(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
+ struct device_attribute *attr,
+ const char *buf,
+ size_t len)
{
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
int ret;
}
static ssize_t ade7753_write_16bit(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
+ struct device_attribute *attr,
+ const char *buf,
+ size_t len)
{
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
int ret;
static IIO_DEV_ATTR_LAENERGY(ade7753_read_24bit, ADE7753_LAENERGY);
static IIO_DEV_ATTR_VAENERGY(ade7753_read_24bit, ADE7753_VAENERGY);
static IIO_DEV_ATTR_LVAENERGY(ade7753_read_24bit, ADE7753_LVAENERGY);
-static IIO_DEV_ATTR_CFDEN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CFDEN(0644,
ade7753_read_16bit,
ade7753_write_16bit,
ADE7753_CFDEN);
-static IIO_DEV_ATTR_CFNUM(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CFNUM(0644,
ade7753_read_8bit,
ade7753_write_8bit,
ADE7753_CFNUM);
static IIO_DEV_ATTR_CHKSUM(ade7753_read_8bit, ADE7753_CHKSUM);
-static IIO_DEV_ATTR_PHCAL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_PHCAL(0644,
ade7753_read_16bit,
ade7753_write_16bit,
ADE7753_PHCAL);
-static IIO_DEV_ATTR_APOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_APOS(0644,
ade7753_read_16bit,
ade7753_write_16bit,
ADE7753_APOS);
-static IIO_DEV_ATTR_SAGCYC(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_SAGCYC(0644,
ade7753_read_8bit,
ade7753_write_8bit,
ADE7753_SAGCYC);
-static IIO_DEV_ATTR_SAGLVL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_SAGLVL(0644,
ade7753_read_8bit,
ade7753_write_8bit,
ADE7753_SAGLVL);
-static IIO_DEV_ATTR_LINECYC(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_LINECYC(0644,
ade7753_read_8bit,
ade7753_write_8bit,
ADE7753_LINECYC);
-static IIO_DEV_ATTR_WDIV(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_WDIV(0644,
ade7753_read_8bit,
ade7753_write_8bit,
ADE7753_WDIV);
-static IIO_DEV_ATTR_IRMS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_IRMS(0644,
ade7753_read_24bit,
NULL,
ADE7753_IRMS);
-static IIO_DEV_ATTR_VRMS(S_IRUGO,
+static IIO_DEV_ATTR_VRMS(0444,
ade7753_read_24bit,
NULL,
ADE7753_VRMS);
-static IIO_DEV_ATTR_IRMSOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_IRMSOS(0644,
ade7753_read_16bit,
ade7753_write_16bit,
ADE7753_IRMSOS);
-static IIO_DEV_ATTR_VRMSOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_VRMSOS(0644,
ade7753_read_16bit,
ade7753_write_16bit,
ADE7753_VRMSOS);
-static IIO_DEV_ATTR_WGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_WGAIN(0644,
ade7753_read_16bit,
ade7753_write_16bit,
ADE7753_WGAIN);
-static IIO_DEV_ATTR_VAGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_VAGAIN(0644,
ade7753_read_16bit,
ade7753_write_16bit,
ADE7753_VAGAIN);
-static IIO_DEV_ATTR_PGA_GAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_PGA_GAIN(0644,
ade7753_read_16bit,
ade7753_write_16bit,
ADE7753_GAIN);
-static IIO_DEV_ATTR_IPKLVL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_IPKLVL(0644,
ade7753_read_8bit,
ade7753_write_8bit,
ADE7753_IPKLVL);
-static IIO_DEV_ATTR_VPKLVL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_VPKLVL(0644,
ade7753_read_8bit,
ade7753_write_8bit,
ADE7753_VPKLVL);
-static IIO_DEV_ATTR_IPEAK(S_IRUGO,
+static IIO_DEV_ATTR_IPEAK(0444,
ade7753_read_24bit,
NULL,
ADE7753_IPEAK);
-static IIO_DEV_ATTR_VPEAK(S_IRUGO,
+static IIO_DEV_ATTR_VPEAK(0444,
ade7753_read_24bit,
NULL,
ADE7753_VPEAK);
-static IIO_DEV_ATTR_VPERIOD(S_IRUGO,
+static IIO_DEV_ATTR_VPERIOD(0444,
ade7753_read_16bit,
NULL,
ADE7753_PERIOD);
-static IIO_DEV_ATTR_CH_OFF(1, S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CH_OFF(1, 0644,
ade7753_read_8bit,
ade7753_write_8bit,
ADE7753_CH1OS);
-static IIO_DEV_ATTR_CH_OFF(2, S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CH_OFF(2, 0644,
ade7753_read_8bit,
ade7753_write_8bit,
ADE7753_CH2OS);
}
static ssize_t ade7753_read_frequency(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+ struct device_attribute *attr,
+ char *buf)
{
int ret;
u16 t;
}
static ssize_t ade7753_write_frequency(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
+ struct device_attribute *attr,
+ const char *buf,
+ size_t len)
{
struct iio_dev *indio_dev = dev_to_iio_dev(dev);
struct ade7753_state *st = iio_priv(indio_dev);
static IIO_CONST_ATTR(in_temp_offset, "-25 C");
static IIO_CONST_ATTR(in_temp_scale, "0.67 C");
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_SAMP_FREQ(0644,
ade7753_read_frequency,
ade7753_write_frequency);
static IIO_DEV_ATTR_LAENERGY(ade7754_read_24bit, ADE7754_LAENERGY);
static IIO_DEV_ATTR_VAENERGY(ade7754_read_24bit, ADE7754_VAENERGY);
static IIO_DEV_ATTR_LVAENERGY(ade7754_read_24bit, ADE7754_LVAENERGY);
-static IIO_DEV_ATTR_VPEAK(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_VPEAK(0644,
ade7754_read_8bit,
ade7754_write_8bit,
ADE7754_VPEAK);
-static IIO_DEV_ATTR_IPEAK(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_IPEAK(0644,
ade7754_read_8bit,
ade7754_write_8bit,
ADE7754_VPEAK);
-static IIO_DEV_ATTR_APHCAL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_APHCAL(0644,
ade7754_read_8bit,
ade7754_write_8bit,
ADE7754_APHCAL);
-static IIO_DEV_ATTR_BPHCAL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_BPHCAL(0644,
ade7754_read_8bit,
ade7754_write_8bit,
ADE7754_BPHCAL);
-static IIO_DEV_ATTR_CPHCAL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CPHCAL(0644,
ade7754_read_8bit,
ade7754_write_8bit,
ADE7754_CPHCAL);
-static IIO_DEV_ATTR_AAPOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_AAPOS(0644,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_AAPOS);
-static IIO_DEV_ATTR_BAPOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_BAPOS(0644,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_BAPOS);
-static IIO_DEV_ATTR_CAPOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CAPOS(0644,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_CAPOS);
-static IIO_DEV_ATTR_WDIV(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_WDIV(0644,
ade7754_read_8bit,
ade7754_write_8bit,
ADE7754_WDIV);
-static IIO_DEV_ATTR_VADIV(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_VADIV(0644,
ade7754_read_8bit,
ade7754_write_8bit,
ADE7754_VADIV);
-static IIO_DEV_ATTR_CFNUM(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CFNUM(0644,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_CFNUM);
-static IIO_DEV_ATTR_CFDEN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CFDEN(0644,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_CFDEN);
-static IIO_DEV_ATTR_ACTIVE_POWER_A_GAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_ACTIVE_POWER_A_GAIN(0644,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_AAPGAIN);
-static IIO_DEV_ATTR_ACTIVE_POWER_B_GAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_ACTIVE_POWER_B_GAIN(0644,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_BAPGAIN);
-static IIO_DEV_ATTR_ACTIVE_POWER_C_GAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_ACTIVE_POWER_C_GAIN(0644,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_CAPGAIN);
-static IIO_DEV_ATTR_AIRMS(S_IRUGO,
+static IIO_DEV_ATTR_AIRMS(0444,
ade7754_read_24bit,
NULL,
ADE7754_AIRMS);
-static IIO_DEV_ATTR_BIRMS(S_IRUGO,
+static IIO_DEV_ATTR_BIRMS(0444,
ade7754_read_24bit,
NULL,
ADE7754_BIRMS);
-static IIO_DEV_ATTR_CIRMS(S_IRUGO,
+static IIO_DEV_ATTR_CIRMS(0444,
ade7754_read_24bit,
NULL,
ADE7754_CIRMS);
-static IIO_DEV_ATTR_AVRMS(S_IRUGO,
+static IIO_DEV_ATTR_AVRMS(0444,
ade7754_read_24bit,
NULL,
ADE7754_AVRMS);
-static IIO_DEV_ATTR_BVRMS(S_IRUGO,
+static IIO_DEV_ATTR_BVRMS(0444,
ade7754_read_24bit,
NULL,
ADE7754_BVRMS);
-static IIO_DEV_ATTR_CVRMS(S_IRUGO,
+static IIO_DEV_ATTR_CVRMS(0444,
ade7754_read_24bit,
NULL,
ADE7754_CVRMS);
-static IIO_DEV_ATTR_AIRMSOS(S_IRUGO,
+static IIO_DEV_ATTR_AIRMSOS(0444,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_AIRMSOS);
-static IIO_DEV_ATTR_BIRMSOS(S_IRUGO,
+static IIO_DEV_ATTR_BIRMSOS(0444,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_BIRMSOS);
-static IIO_DEV_ATTR_CIRMSOS(S_IRUGO,
+static IIO_DEV_ATTR_CIRMSOS(0444,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_CIRMSOS);
-static IIO_DEV_ATTR_AVRMSOS(S_IRUGO,
+static IIO_DEV_ATTR_AVRMSOS(0444,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_AVRMSOS);
-static IIO_DEV_ATTR_BVRMSOS(S_IRUGO,
+static IIO_DEV_ATTR_BVRMSOS(0444,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_BVRMSOS);
-static IIO_DEV_ATTR_CVRMSOS(S_IRUGO,
+static IIO_DEV_ATTR_CVRMSOS(0444,
ade7754_read_16bit,
ade7754_write_16bit,
ADE7754_CVRMSOS);
static IIO_CONST_ATTR(in_temp_offset, "129 C");
static IIO_CONST_ATTR(in_temp_scale, "4 C");
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_SAMP_FREQ(0644,
ade7754_read_frequency,
ade7754_write_frequency);
return ret;
}
-static IIO_DEV_ATTR_VPEAK(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_VPEAK(0644,
ade7758_read_8bit,
ade7758_write_8bit,
ADE7758_VPEAK);
-static IIO_DEV_ATTR_IPEAK(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_IPEAK(0644,
ade7758_read_8bit,
ade7758_write_8bit,
ADE7758_VPEAK);
-static IIO_DEV_ATTR_APHCAL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_APHCAL(0644,
ade7758_read_8bit,
ade7758_write_8bit,
ADE7758_APHCAL);
-static IIO_DEV_ATTR_BPHCAL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_BPHCAL(0644,
ade7758_read_8bit,
ade7758_write_8bit,
ADE7758_BPHCAL);
-static IIO_DEV_ATTR_CPHCAL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CPHCAL(0644,
ade7758_read_8bit,
ade7758_write_8bit,
ADE7758_CPHCAL);
-static IIO_DEV_ATTR_WDIV(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_WDIV(0644,
ade7758_read_8bit,
ade7758_write_8bit,
ADE7758_WDIV);
-static IIO_DEV_ATTR_VADIV(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_VADIV(0644,
ade7758_read_8bit,
ade7758_write_8bit,
ADE7758_VADIV);
-static IIO_DEV_ATTR_AIRMS(S_IRUGO,
+static IIO_DEV_ATTR_AIRMS(0444,
ade7758_read_24bit,
NULL,
ADE7758_AIRMS);
-static IIO_DEV_ATTR_BIRMS(S_IRUGO,
+static IIO_DEV_ATTR_BIRMS(0444,
ade7758_read_24bit,
NULL,
ADE7758_BIRMS);
-static IIO_DEV_ATTR_CIRMS(S_IRUGO,
+static IIO_DEV_ATTR_CIRMS(0444,
ade7758_read_24bit,
NULL,
ADE7758_CIRMS);
-static IIO_DEV_ATTR_AVRMS(S_IRUGO,
+static IIO_DEV_ATTR_AVRMS(0444,
ade7758_read_24bit,
NULL,
ADE7758_AVRMS);
-static IIO_DEV_ATTR_BVRMS(S_IRUGO,
+static IIO_DEV_ATTR_BVRMS(0444,
ade7758_read_24bit,
NULL,
ADE7758_BVRMS);
-static IIO_DEV_ATTR_CVRMS(S_IRUGO,
+static IIO_DEV_ATTR_CVRMS(0444,
ade7758_read_24bit,
NULL,
ADE7758_CVRMS);
-static IIO_DEV_ATTR_AIRMSOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_AIRMSOS(0644,
ade7758_read_16bit,
ade7758_write_16bit,
ADE7758_AIRMSOS);
-static IIO_DEV_ATTR_BIRMSOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_BIRMSOS(0644,
ade7758_read_16bit,
ade7758_write_16bit,
ADE7758_BIRMSOS);
-static IIO_DEV_ATTR_CIRMSOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CIRMSOS(0644,
ade7758_read_16bit,
ade7758_write_16bit,
ADE7758_CIRMSOS);
-static IIO_DEV_ATTR_AVRMSOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_AVRMSOS(0644,
ade7758_read_16bit,
ade7758_write_16bit,
ADE7758_AVRMSOS);
-static IIO_DEV_ATTR_BVRMSOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_BVRMSOS(0644,
ade7758_read_16bit,
ade7758_write_16bit,
ADE7758_BVRMSOS);
-static IIO_DEV_ATTR_CVRMSOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CVRMSOS(0644,
ade7758_read_16bit,
ade7758_write_16bit,
ADE7758_CVRMSOS);
-static IIO_DEV_ATTR_AIGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_AIGAIN(0644,
ade7758_read_16bit,
ade7758_write_16bit,
ADE7758_AIGAIN);
-static IIO_DEV_ATTR_BIGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_BIGAIN(0644,
ade7758_read_16bit,
ade7758_write_16bit,
ADE7758_BIGAIN);
-static IIO_DEV_ATTR_CIGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CIGAIN(0644,
ade7758_read_16bit,
ade7758_write_16bit,
ADE7758_CIGAIN);
-static IIO_DEV_ATTR_AVRMSGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_AVRMSGAIN(0644,
ade7758_read_16bit,
ade7758_write_16bit,
ADE7758_AVRMSGAIN);
-static IIO_DEV_ATTR_BVRMSGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_BVRMSGAIN(0644,
ade7758_read_16bit,
ade7758_write_16bit,
ADE7758_BVRMSGAIN);
-static IIO_DEV_ATTR_CVRMSGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CVRMSGAIN(0644,
ade7758_read_16bit,
ade7758_write_16bit,
ADE7758_CVRMSGAIN);
return st->write_reg_16(dev, ADE7854_CONFIG, val);
}
-static IIO_DEV_ATTR_AIGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_AIGAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_AIGAIN);
-static IIO_DEV_ATTR_BIGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_BIGAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_BIGAIN);
-static IIO_DEV_ATTR_CIGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CIGAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_CIGAIN);
-static IIO_DEV_ATTR_NIGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_NIGAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_NIGAIN);
-static IIO_DEV_ATTR_AVGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_AVGAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_AVGAIN);
-static IIO_DEV_ATTR_BVGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_BVGAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_BVGAIN);
-static IIO_DEV_ATTR_CVGAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CVGAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_CVGAIN);
-static IIO_DEV_ATTR_APPARENT_POWER_A_GAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_APPARENT_POWER_A_GAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_AVAGAIN);
-static IIO_DEV_ATTR_APPARENT_POWER_B_GAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_APPARENT_POWER_B_GAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_BVAGAIN);
-static IIO_DEV_ATTR_APPARENT_POWER_C_GAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_APPARENT_POWER_C_GAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_CVAGAIN);
-static IIO_DEV_ATTR_ACTIVE_POWER_A_OFFSET(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_ACTIVE_POWER_A_OFFSET(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_AWATTOS);
-static IIO_DEV_ATTR_ACTIVE_POWER_B_OFFSET(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_ACTIVE_POWER_B_OFFSET(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_BWATTOS);
-static IIO_DEV_ATTR_ACTIVE_POWER_C_OFFSET(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_ACTIVE_POWER_C_OFFSET(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_CWATTOS);
-static IIO_DEV_ATTR_REACTIVE_POWER_A_GAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_REACTIVE_POWER_A_GAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_AVARGAIN);
-static IIO_DEV_ATTR_REACTIVE_POWER_B_GAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_REACTIVE_POWER_B_GAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_BVARGAIN);
-static IIO_DEV_ATTR_REACTIVE_POWER_C_GAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_REACTIVE_POWER_C_GAIN(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_CVARGAIN);
-static IIO_DEV_ATTR_REACTIVE_POWER_A_OFFSET(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_REACTIVE_POWER_A_OFFSET(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_AVAROS);
-static IIO_DEV_ATTR_REACTIVE_POWER_B_OFFSET(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_REACTIVE_POWER_B_OFFSET(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_BVAROS);
-static IIO_DEV_ATTR_REACTIVE_POWER_C_OFFSET(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_REACTIVE_POWER_C_OFFSET(0644,
ade7854_read_24bit,
ade7854_write_24bit,
ADE7854_CVAROS);
-static IIO_DEV_ATTR_VPEAK(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_VPEAK(0644,
ade7854_read_32bit,
ade7854_write_32bit,
ADE7854_VPEAK);
-static IIO_DEV_ATTR_IPEAK(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_IPEAK(0644,
ade7854_read_32bit,
ade7854_write_32bit,
ADE7854_VPEAK);
-static IIO_DEV_ATTR_APHCAL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_APHCAL(0644,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_APHCAL);
-static IIO_DEV_ATTR_BPHCAL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_BPHCAL(0644,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_BPHCAL);
-static IIO_DEV_ATTR_CPHCAL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CPHCAL(0644,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_CPHCAL);
-static IIO_DEV_ATTR_CF1DEN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CF1DEN(0644,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_CF1DEN);
-static IIO_DEV_ATTR_CF2DEN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CF2DEN(0644,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_CF2DEN);
-static IIO_DEV_ATTR_CF3DEN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CF3DEN(0644,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_CF3DEN);
-static IIO_DEV_ATTR_LINECYC(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_LINECYC(0644,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_LINECYC);
-static IIO_DEV_ATTR_SAGCYC(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_SAGCYC(0644,
ade7854_read_8bit,
ade7854_write_8bit,
ADE7854_SAGCYC);
-static IIO_DEV_ATTR_CFCYC(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CFCYC(0644,
ade7854_read_8bit,
ade7854_write_8bit,
ADE7854_CFCYC);
-static IIO_DEV_ATTR_PEAKCYC(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_PEAKCYC(0644,
ade7854_read_8bit,
ade7854_write_8bit,
ADE7854_PEAKCYC);
ADE7854_ANGLE1);
static IIO_DEV_ATTR_ANGLE2(ade7854_read_24bit,
ADE7854_ANGLE2);
-static IIO_DEV_ATTR_AIRMS(S_IRUGO,
+static IIO_DEV_ATTR_AIRMS(0444,
ade7854_read_24bit,
NULL,
ADE7854_AIRMS);
-static IIO_DEV_ATTR_BIRMS(S_IRUGO,
+static IIO_DEV_ATTR_BIRMS(0444,
ade7854_read_24bit,
NULL,
ADE7854_BIRMS);
-static IIO_DEV_ATTR_CIRMS(S_IRUGO,
+static IIO_DEV_ATTR_CIRMS(0444,
ade7854_read_24bit,
NULL,
ADE7854_CIRMS);
-static IIO_DEV_ATTR_NIRMS(S_IRUGO,
+static IIO_DEV_ATTR_NIRMS(0444,
ade7854_read_24bit,
NULL,
ADE7854_NIRMS);
-static IIO_DEV_ATTR_AVRMS(S_IRUGO,
+static IIO_DEV_ATTR_AVRMS(0444,
ade7854_read_24bit,
NULL,
ADE7854_AVRMS);
-static IIO_DEV_ATTR_BVRMS(S_IRUGO,
+static IIO_DEV_ATTR_BVRMS(0444,
ade7854_read_24bit,
NULL,
ADE7854_BVRMS);
-static IIO_DEV_ATTR_CVRMS(S_IRUGO,
+static IIO_DEV_ATTR_CVRMS(0444,
ade7854_read_24bit,
NULL,
ADE7854_CVRMS);
-static IIO_DEV_ATTR_AIRMSOS(S_IRUGO,
+static IIO_DEV_ATTR_AIRMSOS(0444,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_AIRMSOS);
-static IIO_DEV_ATTR_BIRMSOS(S_IRUGO,
+static IIO_DEV_ATTR_BIRMSOS(0444,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_BIRMSOS);
-static IIO_DEV_ATTR_CIRMSOS(S_IRUGO,
+static IIO_DEV_ATTR_CIRMSOS(0444,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_CIRMSOS);
-static IIO_DEV_ATTR_AVRMSOS(S_IRUGO,
+static IIO_DEV_ATTR_AVRMSOS(0444,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_AVRMSOS);
-static IIO_DEV_ATTR_BVRMSOS(S_IRUGO,
+static IIO_DEV_ATTR_BVRMSOS(0444,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_BVRMSOS);
-static IIO_DEV_ATTR_CVRMSOS(S_IRUGO,
+static IIO_DEV_ATTR_CVRMSOS(0444,
ade7854_read_16bit,
ade7854_write_16bit,
ADE7854_CVRMSOS);
atomic_t user_requested_state;
int poll_interval;
int raw_hystersis;
+ int latency_ms;
struct iio_trigger *trigger;
int timestamp_ns_scale;
struct hid_sensor_hub_attribute_info poll;
struct hid_sensor_hub_attribute_info report_state;
struct hid_sensor_hub_attribute_info power_state;
struct hid_sensor_hub_attribute_info sensitivity;
+ struct hid_sensor_hub_attribute_info report_latency;
struct work_struct work;
};
int64_t hid_sensor_convert_timestamp(struct hid_sensor_common *st,
int64_t raw_value);
+bool hid_sensor_batch_mode_supported(struct hid_sensor_common *st);
+int hid_sensor_set_report_latency(struct hid_sensor_common *st, int latency);
+int hid_sensor_get_report_latency(struct hid_sensor_common *st);
#endif
#define HID_USAGE_SENSOR_ORIENT_TILT_Z 0x200481
#define HID_USAGE_SENSOR_DEVICE_ORIENTATION 0x20008A
+#define HID_USAGE_SENSOR_RELATIVE_ORIENTATION 0x20008E
+#define HID_USAGE_SENSOR_GEOMAGNETIC_ORIENTATION 0x2000C1
#define HID_USAGE_SENSOR_ORIENT_ROTATION_MATRIX 0x200482
#define HID_USAGE_SENSOR_ORIENT_QUATERNION 0x200483
#define HID_USAGE_SENSOR_ORIENT_MAGN_FLUX 0x200484
#define HID_USAGE_SENSOR_PROP_REPORT_STATE 0x200316
#define HID_USAGE_SENSOR_PROY_POWER_STATE 0x200319
+/* Batch mode selectors */
+#define HID_USAGE_SENSOR_PROP_REPORT_LATENCY 0x20031B
+
/* Per data field properties */
#define HID_USAGE_SENSOR_DATA_MOD_NONE 0x00
#define HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS 0x1000
#define _STM32_TIMER_TRIGGER_H_
#define TIM1_TRGO "tim1_trgo"
+#define TIM1_TRGO2 "tim1_trgo2"
#define TIM1_CH1 "tim1_ch1"
#define TIM1_CH2 "tim1_ch2"
#define TIM1_CH3 "tim1_ch3"
#define TIM7_TRGO "tim7_trgo"
#define TIM8_TRGO "tim8_trgo"
+#define TIM8_TRGO2 "tim8_trgo2"
#define TIM8_CH1 "tim8_ch1"
#define TIM8_CH2 "tim8_ch2"
#define TIM8_CH3 "tim8_ch3"
#define TIM_CR1_DIR BIT(4) /* Counter Direction */
#define TIM_CR1_ARPE BIT(7) /* Auto-reload Preload Ena */
#define TIM_CR2_MMS (BIT(4) | BIT(5) | BIT(6)) /* Master mode selection */
+#define TIM_CR2_MMS2 GENMASK(23, 20) /* Master mode selection 2 */
#define TIM_SMCR_SMS (BIT(0) | BIT(1) | BIT(2)) /* Slave mode selection */
#define TIM_SMCR_TS (BIT(4) | BIT(5) | BIT(6)) /* Trigger selection */
#define TIM_DIER_UIE BIT(0) /* Update interrupt */
#define MAX_TIM_PSC 0xFFFF
#define TIM_CR2_MMS_SHIFT 4
+#define TIM_CR2_MMS2_SHIFT 20
#define TIM_SMCR_TS_SHIFT 4
#define TIM_BDTR_BKF_MASK 0xF
#define TIM_BDTR_BKF_SHIFT 16
CC = $(CROSS_COMPILE)gcc
-CFLAGS += -Wall -g -D_GNU_SOURCE
+CFLAGS += -Wall -g -D_GNU_SOURCE -D__EXPORTED_HEADERS__ -I../../include/uapi -I../../include
BINDIR=usr/bin
INSTALL_PROGRAM=install -m 755 -p
#include <stdint.h>
/* Made up value to limit allocation sizes */
-#define IIO_MAX_NAME_LENGTH 30
+#define IIO_MAX_NAME_LENGTH 64
#define FORMAT_SCAN_ELEMENTS_DIR "%s/scan_elements"
#define FORMAT_TYPE_FILE "%s_type"
projects / mirror_ubuntu-bionic-kernel.git / commitdiff