#
menu "Digital gyroscope sensors"
+config ADIS16080
+ tristate "Analog Devices ADIS16080/100 Yaw Rate Gyroscope with SPI driver"
+ depends on SPI
+ help
+ Say yes here to build support for Analog Devices ADIS16080, ADIS16100 Yaw
+ Rate Gyroscope with SPI.
+
config ADIS16136
tristate "Analog devices ADIS16136 and similar gyroscopes driver"
depends on SPI_MASTER
# Makefile for industrial I/O gyroscope sensor drivers
#
+obj-$(CONFIG_ADIS16080) += adis16080.o
obj-$(CONFIG_ADIS16136) += adis16136.o
obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
--- /dev/null
+/*
+ * ADIS16080/100 Yaw Rate Gyroscope with SPI driver
+ *
+ * Copyright 2010 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/spi/spi.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <linux/module.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+
+#define ADIS16080_DIN_GYRO (0 << 10) /* Gyroscope output */
+#define ADIS16080_DIN_TEMP (1 << 10) /* Temperature output */
+#define ADIS16080_DIN_AIN1 (2 << 10)
+#define ADIS16080_DIN_AIN2 (3 << 10)
+
+/*
+ * 1: Write contents on DIN to control register.
+ * 0: No changes to control register.
+ */
+
+#define ADIS16080_DIN_WRITE (1 << 15)
+
+struct adis16080_chip_info {
+ int scale_val;
+ int scale_val2;
+};
+
+/**
+ * struct adis16080_state - device instance specific data
+ * @us: actual spi_device to write data
+ * @info: chip specific parameters
+ * @buf: transmit or receive buffer
+ **/
+struct adis16080_state {
+ struct spi_device *us;
+ const struct adis16080_chip_info *info;
+
+ __be16 buf ____cacheline_aligned;
+};
+
+static int adis16080_read_sample(struct iio_dev *indio_dev,
+ u16 addr, int *val)
+{
+ struct adis16080_state *st = iio_priv(indio_dev);
+ struct spi_message m;
+ int ret;
+ struct spi_transfer t[] = {
+ {
+ .tx_buf = &st->buf,
+ .len = 2,
+ .cs_change = 1,
+ }, {
+ .rx_buf = &st->buf,
+ .len = 2,
+ },
+ };
+
+ st->buf = cpu_to_be16(addr | ADIS16080_DIN_WRITE);
+
+ spi_message_init(&m);
+ spi_message_add_tail(&t[0], &m);
+ spi_message_add_tail(&t[1], &m);
+
+ ret = spi_sync(st->us, &m);
+ if (ret == 0)
+ *val = sign_extend32(be16_to_cpu(st->buf), 11);
+
+ return ret;
+}
+
+static int adis16080_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val,
+ int *val2,
+ long mask)
+{
+ struct adis16080_state *st = iio_priv(indio_dev);
+ int ret;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ mutex_lock(&indio_dev->mlock);
+ ret = adis16080_read_sample(indio_dev, chan->address, val);
+ mutex_unlock(&indio_dev->mlock);
+ return ret ? ret : IIO_VAL_INT;
+ case IIO_CHAN_INFO_SCALE:
+ switch (chan->type) {
+ case IIO_ANGL_VEL:
+ *val = st->info->scale_val;
+ *val2 = st->info->scale_val2;
+ return IIO_VAL_FRACTIONAL;
+ case IIO_VOLTAGE:
+ /* VREF = 5V, 12 bits */
+ *val = 5000;
+ *val2 = 12;
+ return IIO_VAL_FRACTIONAL_LOG2;
+ case IIO_TEMP:
+ /* 85 C = 585, 25 C = 0 */
+ *val = 85000 - 25000;
+ *val2 = 585;
+ return IIO_VAL_FRACTIONAL;
+ default:
+ return -EINVAL;
+ }
+ case IIO_CHAN_INFO_OFFSET:
+ switch (chan->type) {
+ case IIO_VOLTAGE:
+ /* 2.5 V = 0 */
+ *val = 2048;
+ return IIO_VAL_INT;
+ case IIO_TEMP:
+ /* 85 C = 585, 25 C = 0 */
+ *val = DIV_ROUND_CLOSEST(25 * 585, 85 - 25);
+ return IIO_VAL_INT;
+ default:
+ return -EINVAL;
+ }
+ default:
+ break;
+ }
+
+ return -EINVAL;
+}
+
+static const struct iio_chan_spec adis16080_channels[] = {
+ {
+ .type = IIO_ANGL_VEL,
+ .modified = 1,
+ .channel2 = IIO_MOD_Z,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
+ .address = ADIS16080_DIN_GYRO,
+ }, {
+ .type = IIO_VOLTAGE,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+ IIO_CHAN_INFO_OFFSET_SEPARATE_BIT,
+ .address = ADIS16080_DIN_AIN1,
+ }, {
+ .type = IIO_VOLTAGE,
+ .indexed = 1,
+ .channel = 1,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+ IIO_CHAN_INFO_OFFSET_SEPARATE_BIT,
+ .address = ADIS16080_DIN_AIN2,
+ }, {
+ .type = IIO_TEMP,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
+ IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+ IIO_CHAN_INFO_OFFSET_SEPARATE_BIT,
+ .address = ADIS16080_DIN_TEMP,
+ }
+};
+
+static const struct iio_info adis16080_info = {
+ .read_raw = &adis16080_read_raw,
+ .driver_module = THIS_MODULE,
+};
+
+enum {
+ ID_ADIS16080,
+ ID_ADIS16100,
+};
+
+static const struct adis16080_chip_info adis16080_chip_info[] = {
+ [ID_ADIS16080] = {
+ /* 80 degree = 819, 819 rad = 46925 degree */
+ .scale_val = 80,
+ .scale_val2 = 46925,
+ },
+ [ID_ADIS16100] = {
+ /* 300 degree = 1230, 1230 rad = 70474 degree */
+ .scale_val = 300,
+ .scale_val2 = 70474,
+ },
+};
+
+static int adis16080_probe(struct spi_device *spi)
+{
+ const struct spi_device_id *id = spi_get_device_id(spi);
+ int ret;
+ struct adis16080_state *st;
+ struct iio_dev *indio_dev;
+
+ /* setup the industrialio driver allocated elements */
+ indio_dev = iio_device_alloc(sizeof(*st));
+ if (indio_dev == NULL) {
+ ret = -ENOMEM;
+ goto error_ret;
+ }
+ st = iio_priv(indio_dev);
+ /* this is only used for removal purposes */
+ spi_set_drvdata(spi, indio_dev);
+
+ /* Allocate the comms buffers */
+ st->us = spi;
+ st->info = &adis16080_chip_info[id->driver_data];
+
+ indio_dev->name = spi->dev.driver->name;
+ indio_dev->channels = adis16080_channels;
+ indio_dev->num_channels = ARRAY_SIZE(adis16080_channels);
+ indio_dev->dev.parent = &spi->dev;
+ indio_dev->info = &adis16080_info;
+ indio_dev->modes = INDIO_DIRECT_MODE;
+
+ ret = iio_device_register(indio_dev);
+ if (ret)
+ goto error_free_dev;
+ return 0;
+
+error_free_dev:
+ iio_device_free(indio_dev);
+error_ret:
+ return ret;
+}
+
+static int adis16080_remove(struct spi_device *spi)
+{
+ iio_device_unregister(spi_get_drvdata(spi));
+ iio_device_free(spi_get_drvdata(spi));
+
+ return 0;
+}
+
+static const struct spi_device_id adis16080_ids[] = {
+ { "adis16080", ID_ADIS16080 },
+ { "adis16100", ID_ADIS16100 },
+ {},
+};
+MODULE_DEVICE_TABLE(spi, adis16080_ids);
+
+static struct spi_driver adis16080_driver = {
+ .driver = {
+ .name = "adis16080",
+ .owner = THIS_MODULE,
+ },
+ .probe = adis16080_probe,
+ .remove = adis16080_remove,
+ .id_table = adis16080_ids,
+};
+module_spi_driver(adis16080_driver);
+
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_DESCRIPTION("Analog Devices ADIS16080/100 Yaw Rate Gyroscope Driver");
+MODULE_LICENSE("GPL v2");
Say yes here to build support for Analog Devices adis16060 wide bandwidth
yaw rate gyroscope with SPI.
-config ADIS16080
- tristate "Analog Devices ADIS16080/100 Yaw Rate Gyroscope with SPI driver"
- depends on SPI
- help
- Say yes here to build support for Analog Devices ADIS16080, ADIS16100 Yaw
- Rate Gyroscope with SPI.
-
config ADIS16130
tristate "Analog Devices ADIS16130 High Precision Angular Rate Sensor driver"
depends on SPI
adis16060-y := adis16060_core.o
obj-$(CONFIG_ADIS16060) += adis16060.o
-adis16080-y := adis16080_core.o
-obj-$(CONFIG_ADIS16080) += adis16080.o
-
adis16130-y := adis16130_core.o
obj-$(CONFIG_ADIS16130) += adis16130.o
+++ /dev/null
-/*
- * ADIS16080/100 Yaw Rate Gyroscope with SPI driver
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/spi/spi.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/module.h>
-
-#include <linux/iio/iio.h>
-#include <linux/iio/sysfs.h>
-
-#define ADIS16080_DIN_GYRO (0 << 10) /* Gyroscope output */
-#define ADIS16080_DIN_TEMP (1 << 10) /* Temperature output */
-#define ADIS16080_DIN_AIN1 (2 << 10)
-#define ADIS16080_DIN_AIN2 (3 << 10)
-
-/*
- * 1: Write contents on DIN to control register.
- * 0: No changes to control register.
- */
-
-#define ADIS16080_DIN_WRITE (1 << 15)
-
-struct adis16080_chip_info {
- int scale_val;
- int scale_val2;
-};
-
-/**
- * struct adis16080_state - device instance specific data
- * @us: actual spi_device to write data
- * @info: chip specific parameters
- * @buf: transmit or receive buffer
- **/
-struct adis16080_state {
- struct spi_device *us;
- const struct adis16080_chip_info *info;
-
- __be16 buf ____cacheline_aligned;
-};
-
-static int adis16080_read_sample(struct iio_dev *indio_dev,
- u16 addr, int *val)
-{
- struct adis16080_state *st = iio_priv(indio_dev);
- struct spi_message m;
- int ret;
- struct spi_transfer t[] = {
- {
- .tx_buf = &st->buf,
- .len = 2,
- .cs_change = 1,
- }, {
- .rx_buf = &st->buf,
- .len = 2,
- },
- };
-
- st->buf = cpu_to_be16(addr | ADIS16080_DIN_WRITE);
-
- spi_message_init(&m);
- spi_message_add_tail(&t[0], &m);
- spi_message_add_tail(&t[1], &m);
-
- ret = spi_sync(st->us, &m);
- if (ret == 0)
- *val = sign_extend32(be16_to_cpu(st->buf), 11);
-
- return ret;
-}
-
-static int adis16080_read_raw(struct iio_dev *indio_dev,
- struct iio_chan_spec const *chan,
- int *val,
- int *val2,
- long mask)
-{
- struct adis16080_state *st = iio_priv(indio_dev);
- int ret;
-
- switch (mask) {
- case IIO_CHAN_INFO_RAW:
- mutex_lock(&indio_dev->mlock);
- ret = adis16080_read_sample(indio_dev, chan->address, val);
- mutex_unlock(&indio_dev->mlock);
- return ret ? ret : IIO_VAL_INT;
- case IIO_CHAN_INFO_SCALE:
- switch (chan->type) {
- case IIO_ANGL_VEL:
- *val = st->info->scale_val;
- *val2 = st->info->scale_val2;
- return IIO_VAL_FRACTIONAL;
- case IIO_VOLTAGE:
- /* VREF = 5V, 12 bits */
- *val = 5000;
- *val2 = 12;
- return IIO_VAL_FRACTIONAL_LOG2;
- case IIO_TEMP:
- /* 85 C = 585, 25 C = 0 */
- *val = 85000 - 25000;
- *val2 = 585;
- return IIO_VAL_FRACTIONAL;
- default:
- return -EINVAL;
- }
- case IIO_CHAN_INFO_OFFSET:
- switch (chan->type) {
- case IIO_VOLTAGE:
- /* 2.5 V = 0 */
- *val = 2048;
- return IIO_VAL_INT;
- case IIO_TEMP:
- /* 85 C = 585, 25 C = 0 */
- *val = DIV_ROUND_CLOSEST(25 * 585, 85 - 25);
- return IIO_VAL_INT;
- default:
- return -EINVAL;
- }
- default:
- break;
- }
-
- return -EINVAL;
-}
-
-static const struct iio_chan_spec adis16080_channels[] = {
- {
- .type = IIO_ANGL_VEL,
- .modified = 1,
- .channel2 = IIO_MOD_Z,
- .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
- IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
- .address = ADIS16080_DIN_GYRO,
- }, {
- .type = IIO_VOLTAGE,
- .indexed = 1,
- .channel = 0,
- .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
- IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
- IIO_CHAN_INFO_OFFSET_SEPARATE_BIT,
- .address = ADIS16080_DIN_AIN1,
- }, {
- .type = IIO_VOLTAGE,
- .indexed = 1,
- .channel = 1,
- .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
- IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
- IIO_CHAN_INFO_OFFSET_SEPARATE_BIT,
- .address = ADIS16080_DIN_AIN2,
- }, {
- .type = IIO_TEMP,
- .indexed = 1,
- .channel = 0,
- .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
- IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
- IIO_CHAN_INFO_OFFSET_SEPARATE_BIT,
- .address = ADIS16080_DIN_TEMP,
- }
-};
-
-static const struct iio_info adis16080_info = {
- .read_raw = &adis16080_read_raw,
- .driver_module = THIS_MODULE,
-};
-
-enum {
- ID_ADIS16080,
- ID_ADIS16100,
-};
-
-static const struct adis16080_chip_info adis16080_chip_info[] = {
- [ID_ADIS16080] = {
- /* 80 degree = 819, 819 rad = 46925 degree */
- .scale_val = 80,
- .scale_val2 = 46925,
- },
- [ID_ADIS16100] = {
- /* 300 degree = 1230, 1230 rad = 70474 degree */
- .scale_val = 300,
- .scale_val2 = 70474,
- },
-};
-
-static int adis16080_probe(struct spi_device *spi)
-{
- const struct spi_device_id *id = spi_get_device_id(spi);
- int ret;
- struct adis16080_state *st;
- struct iio_dev *indio_dev;
-
- /* setup the industrialio driver allocated elements */
- indio_dev = iio_device_alloc(sizeof(*st));
- if (indio_dev == NULL) {
- ret = -ENOMEM;
- goto error_ret;
- }
- st = iio_priv(indio_dev);
- /* this is only used for removal purposes */
- spi_set_drvdata(spi, indio_dev);
-
- /* Allocate the comms buffers */
- st->us = spi;
- st->info = &adis16080_chip_info[id->driver_data];
-
- indio_dev->name = spi->dev.driver->name;
- indio_dev->channels = adis16080_channels;
- indio_dev->num_channels = ARRAY_SIZE(adis16080_channels);
- indio_dev->dev.parent = &spi->dev;
- indio_dev->info = &adis16080_info;
- indio_dev->modes = INDIO_DIRECT_MODE;
-
- ret = iio_device_register(indio_dev);
- if (ret)
- goto error_free_dev;
- return 0;
-
-error_free_dev:
- iio_device_free(indio_dev);
-error_ret:
- return ret;
-}
-
-/* fixme, confirm ordering in this function */
-static int adis16080_remove(struct spi_device *spi)
-{
- iio_device_unregister(spi_get_drvdata(spi));
- iio_device_free(spi_get_drvdata(spi));
-
- return 0;
-}
-
-static const struct spi_device_id adis16080_ids[] = {
- { "adis16080", ID_ADIS16080 },
- { "adis16100", ID_ADIS16100 },
- {},
-};
-MODULE_DEVICE_TABLE(spi, adis16080_ids);
-
-static struct spi_driver adis16080_driver = {
- .driver = {
- .name = "adis16080",
- .owner = THIS_MODULE,
- },
- .probe = adis16080_probe,
- .remove = adis16080_remove,
- .id_table = adis16080_ids,
-};
-module_spi_driver(adis16080_driver);
-
-MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
-MODULE_DESCRIPTION("Analog Devices ADIS16080/100 Yaw Rate Gyroscope Driver");
-MODULE_LICENSE("GPL v2");
projects / mirror_ubuntu-bionic-kernel.git / commitdiff