[mirror_ubuntu-zesty-kernel.git] / drivers / staging / iio / accel / adis16203.h

#ifndef SPI_ADIS16203_H_
#define SPI_ADIS16203_H_

#define ADIS16203_STARTUP_DELAY	220 /* ms */

#define ADIS16203_READ_REG(a)    a
#define ADIS16203_WRITE_REG(a) ((a) | 0x80)

#define ADIS16203_FLASH_CNT      0x00 /* Flash memory write count */
#define ADIS16203_SUPPLY_OUT     0x02 /* Output, power supply */
#define ADIS16203_AUX_ADC        0x08 /* Output, auxiliary ADC input */
#define ADIS16203_TEMP_OUT       0x0A /* Output, temperature */
#define ADIS16203_XINCL_OUT      0x0C /* Output, x-axis inclination */
#define ADIS16203_YINCL_OUT      0x0E /* Output, y-axis inclination */
#define ADIS16203_INCL_NULL      0x18 /* Incline null calibration */
#define ADIS16203_ALM_MAG1       0x20 /* Alarm 1 amplitude threshold */
#define ADIS16203_ALM_MAG2       0x22 /* Alarm 2 amplitude threshold */
#define ADIS16203_ALM_SMPL1      0x24 /* Alarm 1, sample period */
#define ADIS16203_ALM_SMPL2      0x26 /* Alarm 2, sample period */
#define ADIS16203_ALM_CTRL       0x28 /* Alarm control */
#define ADIS16203_AUX_DAC        0x30 /* Auxiliary DAC data */
#define ADIS16203_GPIO_CTRL      0x32 /* General-purpose digital input/output control */
#define ADIS16203_MSC_CTRL       0x34 /* Miscellaneous control */
#define ADIS16203_SMPL_PRD       0x36 /* Internal sample period (rate) control */
#define ADIS16203_AVG_CNT        0x38 /* Operation, filter configuration */
#define ADIS16203_SLP_CNT        0x3A /* Operation, sleep mode control */
#define ADIS16203_DIAG_STAT      0x3C /* Diagnostics, system status register */
#define ADIS16203_GLOB_CMD       0x3E /* Operation, system command register */

#define ADIS16203_OUTPUTS        5

/* MSC_CTRL */
#define ADIS16203_MSC_CTRL_PWRUP_SELF_TEST	(1 << 10) /* Self-test at power-on: 1 = disabled, 0 = enabled */
#define ADIS16203_MSC_CTRL_REVERSE_ROT_EN	(1 << 9)  /* Reverses rotation of both inclination outputs */
#define ADIS16203_MSC_CTRL_SELF_TEST_EN	        (1 << 8)  /* Self-test enable */
#define ADIS16203_MSC_CTRL_DATA_RDY_EN	        (1 << 2)  /* Data-ready enable: 1 = enabled, 0 = disabled */
#define ADIS16203_MSC_CTRL_ACTIVE_HIGH	        (1 << 1)  /* Data-ready polarity: 1 = active high, 0 = active low */
#define ADIS16203_MSC_CTRL_DATA_RDY_DIO1	(1 << 0)  /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */

/* DIAG_STAT */
#define ADIS16203_DIAG_STAT_ALARM2        (1<<9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
#define ADIS16203_DIAG_STAT_ALARM1        (1<<8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
#define ADIS16203_DIAG_STAT_SELFTEST_FAIL (1<<5) /* Self-test diagnostic error flag */
#define ADIS16203_DIAG_STAT_SPI_FAIL	  (1<<3) /* SPI communications failure */
#define ADIS16203_DIAG_STAT_FLASH_UPT	  (1<<2) /* Flash update failure */
#define ADIS16203_DIAG_STAT_POWER_HIGH	  (1<<1) /* Power supply above 3.625 V */
#define ADIS16203_DIAG_STAT_POWER_LOW	  (1<<0) /* Power supply below 3.15 V */

/* GLOB_CMD */
#define ADIS16203_GLOB_CMD_SW_RESET	(1<<7)
#define ADIS16203_GLOB_CMD_CLEAR_STAT	(1<<4)
#define ADIS16203_GLOB_CMD_FACTORY_CAL	(1<<1)

#define ADIS16203_MAX_TX 12
#define ADIS16203_MAX_RX 10

#define ADIS16203_ERROR_ACTIVE          (1<<14)

/**
 * struct adis16203_state - device instance specific data
 * @us:			actual spi_device
 * @work_trigger_to_ring: bh for triggered event handling
 * @inter:		used to check if new interrupt has been triggered
 * @last_timestamp:	passing timestamp from th to bh of interrupt handler
 * @indio_dev:		industrial I/O device structure
 * @trig:		data ready trigger registered with iio
 * @tx:			transmit buffer
 * @rx:			receive buffer
 * @buf_lock:		mutex to protect tx and rx
 **/
struct adis16203_state {
	struct spi_device		*us;
	struct work_struct		work_trigger_to_ring;
	s64				last_timestamp;
	struct iio_dev			*indio_dev;
	struct iio_trigger		*trig;
	u8				*tx;
	u8				*rx;
	struct mutex			buf_lock;
};

int adis16203_set_irq(struct device *dev, bool enable);

#ifdef CONFIG_IIO_RING_BUFFER
enum adis16203_scan {
	ADIS16203_SCAN_SUPPLY,
	ADIS16203_SCAN_AUX_ADC,
	ADIS16203_SCAN_TEMP,
	ADIS16203_SCAN_INCLI_X,
	ADIS16203_SCAN_INCLI_Y,
};

void adis16203_remove_trigger(struct iio_dev *indio_dev);
int adis16203_probe_trigger(struct iio_dev *indio_dev);

ssize_t adis16203_read_data_from_ring(struct device *dev,
				      struct device_attribute *attr,
				      char *buf);

int adis16203_configure_ring(struct iio_dev *indio_dev);
void adis16203_unconfigure_ring(struct iio_dev *indio_dev);

int adis16203_initialize_ring(struct iio_ring_buffer *ring);
void adis16203_uninitialize_ring(struct iio_ring_buffer *ring);
#else /* CONFIG_IIO_RING_BUFFER */

static inline void adis16203_remove_trigger(struct iio_dev *indio_dev)
{
}

static inline int adis16203_probe_trigger(struct iio_dev *indio_dev)
{
	return 0;
}

static inline ssize_t
adis16203_read_data_from_ring(struct device *dev,
			      struct device_attribute *attr,
			      char *buf)
{
	return 0;
}

static int adis16203_configure_ring(struct iio_dev *indio_dev)
{
	return 0;
}

static inline void adis16203_unconfigure_ring(struct iio_dev *indio_dev)
{
}

static inline int adis16203_initialize_ring(struct iio_ring_buffer *ring)
{
	return 0;
}

static inline void adis16203_uninitialize_ring(struct iio_ring_buffer *ring)
{
}

#endif /* CONFIG_IIO_RING_BUFFER */
#endif /* SPI_ADIS16203_H_ */
Commit	Line	Data
f11ba4f5 BS	1	#ifndef SPI_ADIS16203_H_
	2	#define SPI_ADIS16203_H_
	3
	4	#define ADIS16203_STARTUP_DELAY 220 /* ms */
	5
	6	#define ADIS16203_READ_REG(a) a
	7	#define ADIS16203_WRITE_REG(a) ((a) \| 0x80)
	8
	9	#define ADIS16203_FLASH_CNT 0x00 /* Flash memory write count */
	10	#define ADIS16203_SUPPLY_OUT 0x02 /* Output, power supply */
	11	#define ADIS16203_AUX_ADC 0x08 /* Output, auxiliary ADC input */
	12	#define ADIS16203_TEMP_OUT 0x0A /* Output, temperature */
	13	#define ADIS16203_XINCL_OUT 0x0C /* Output, x-axis inclination */
	14	#define ADIS16203_YINCL_OUT 0x0E /* Output, y-axis inclination */
	15	#define ADIS16203_INCL_NULL 0x18 /* Incline null calibration */
	16	#define ADIS16203_ALM_MAG1 0x20 /* Alarm 1 amplitude threshold */
	17	#define ADIS16203_ALM_MAG2 0x22 /* Alarm 2 amplitude threshold */
	18	#define ADIS16203_ALM_SMPL1 0x24 /* Alarm 1, sample period */
	19	#define ADIS16203_ALM_SMPL2 0x26 /* Alarm 2, sample period */
	20	#define ADIS16203_ALM_CTRL 0x28 /* Alarm control */
	21	#define ADIS16203_AUX_DAC 0x30 /* Auxiliary DAC data */
	22	#define ADIS16203_GPIO_CTRL 0x32 /* General-purpose digital input/output control */
	23	#define ADIS16203_MSC_CTRL 0x34 /* Miscellaneous control */
	24	#define ADIS16203_SMPL_PRD 0x36 /* Internal sample period (rate) control */
	25	#define ADIS16203_AVG_CNT 0x38 /* Operation, filter configuration */
	26	#define ADIS16203_SLP_CNT 0x3A /* Operation, sleep mode control */
	27	#define ADIS16203_DIAG_STAT 0x3C /* Diagnostics, system status register */
	28	#define ADIS16203_GLOB_CMD 0x3E /* Operation, system command register */
	29
	30	#define ADIS16203_OUTPUTS 5
	31
	32	/* MSC_CTRL */
	33	#define ADIS16203_MSC_CTRL_PWRUP_SELF_TEST (1 << 10) /* Self-test at power-on: 1 = disabled, 0 = enabled */
	34	#define ADIS16203_MSC_CTRL_REVERSE_ROT_EN (1 << 9) /* Reverses rotation of both inclination outputs */
	35	#define ADIS16203_MSC_CTRL_SELF_TEST_EN (1 << 8) /* Self-test enable */
	36	#define ADIS16203_MSC_CTRL_DATA_RDY_EN (1 << 2) /* Data-ready enable: 1 = enabled, 0 = disabled */
	37	#define ADIS16203_MSC_CTRL_ACTIVE_HIGH (1 << 1) /* Data-ready polarity: 1 = active high, 0 = active low */
	38	#define ADIS16203_MSC_CTRL_DATA_RDY_DIO1 (1 << 0) /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */
	39
	40	/* DIAG_STAT */
	41	#define ADIS16203_DIAG_STAT_ALARM2 (1<<9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
	42	#define ADIS16203_DIAG_STAT_ALARM1 (1<<8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
	43	#define ADIS16203_DIAG_STAT_SELFTEST_FAIL (1<<5) /* Self-test diagnostic error flag */
	44	#define ADIS16203_DIAG_STAT_SPI_FAIL (1<<3) /* SPI communications failure */
	45	#define ADIS16203_DIAG_STAT_FLASH_UPT (1<<2) /* Flash update failure */
	46	#define ADIS16203_DIAG_STAT_POWER_HIGH (1<<1) /* Power supply above 3.625 V */
	47	#define ADIS16203_DIAG_STAT_POWER_LOW (1<<0) /* Power supply below 3.15 V */
	48
	49	/* GLOB_CMD */
	50	#define ADIS16203_GLOB_CMD_SW_RESET (1<<7)
	51	#define ADIS16203_GLOB_CMD_CLEAR_STAT (1<<4)
	52	#define ADIS16203_GLOB_CMD_FACTORY_CAL (1<<1)
	53
	54	#define ADIS16203_MAX_TX 12
	55	#define ADIS16203_MAX_RX 10
	56
	57	#define ADIS16203_ERROR_ACTIVE (1<<14)
	58
	59	/**
	60	* struct adis16203_state - device instance specific data
	61	* @us: actual spi_device
	62	* @work_trigger_to_ring: bh for triggered event handling
	63	* @inter: used to check if new interrupt has been triggered
	64	* @last_timestamp: passing timestamp from th to bh of interrupt handler
65	* @indio_dev: industrial I/O device structure
66	* @trig: data ready trigger registered with iio
67	* @tx: transmit buffer
25985edc	68	* @rx: receive buffer
f11ba4f5 BS	69	* @buf_lock: mutex to protect tx and rx
	70	**/
	71	struct adis16203_state {
	72	struct spi_device *us;
	73	struct work_struct work_trigger_to_ring;
	74	s64 last_timestamp;
	75	struct iio_dev *indio_dev;
	76	struct iio_trigger *trig;
	77	u8 *tx;
	78	u8 *rx;
	79	struct mutex buf_lock;
	80	};
	81
	82	int adis16203_set_irq(struct device *dev, bool enable);
	83
	84	#ifdef CONFIG_IIO_RING_BUFFER
	85	enum adis16203_scan {
	86	ADIS16203_SCAN_SUPPLY,
	87	ADIS16203_SCAN_AUX_ADC,
	88	ADIS16203_SCAN_TEMP,
	89	ADIS16203_SCAN_INCLI_X,
	90	ADIS16203_SCAN_INCLI_Y,
	91	};
	92
	93	void adis16203_remove_trigger(struct iio_dev *indio_dev);
	94	int adis16203_probe_trigger(struct iio_dev *indio_dev);
	95
	96	ssize_t adis16203_read_data_from_ring(struct device *dev,
	97	struct device_attribute *attr,
	98	char *buf);
	99
	100	int adis16203_configure_ring(struct iio_dev *indio_dev);
	101	void adis16203_unconfigure_ring(struct iio_dev *indio_dev);
	102
	103	int adis16203_initialize_ring(struct iio_ring_buffer *ring);
	104	void adis16203_uninitialize_ring(struct iio_ring_buffer *ring);
	105	#else /* CONFIG_IIO_RING_BUFFER */
	106
	107	static inline void adis16203_remove_trigger(struct iio_dev *indio_dev)
	108	{
	109	}
	110
	111	static inline int adis16203_probe_trigger(struct iio_dev *indio_dev)
	112	{
	113	return 0;
	114	}
	115
	116	static inline ssize_t
	117	adis16203_read_data_from_ring(struct device *dev,
	118	struct device_attribute *attr,
	119	char *buf)
	120	{
	121	return 0;
	122	}
	123
	124	static int adis16203_configure_ring(struct iio_dev *indio_dev)
	125	{
	126	return 0;
	127	}
	128
	129	static inline void adis16203_unconfigure_ring(struct iio_dev *indio_dev)
	130	{
	131	}
	132
133	static inline int adis16203_initialize_ring(struct iio_ring_buffer *ring)
134	{
135	return 0;
136	}
137
138	static inline void adis16203_uninitialize_ring(struct iio_ring_buffer *ring)
139	{
140	}
141
142	#endif /* CONFIG_IIO_RING_BUFFER */
143	#endif /* SPI_ADIS16203_H_ */