[linux-block.git] / drivers / staging / iio / gyro / adis16260.h

#ifndef SPI_ADIS16260_H_
#define SPI_ADIS16260_H_
#include "adis16260_platform_data.h"

#define ADIS16260_STARTUP_DELAY	220 /* ms */

#define ADIS16260_READ_REG(a)    a
#define ADIS16260_WRITE_REG(a) ((a) | 0x80)

#define ADIS16260_FLASH_CNT  0x00 /* Flash memory write count */
#define ADIS16260_SUPPLY_OUT 0x02 /* Power supply measurement */
#define ADIS16260_GYRO_OUT   0x04 /* X-axis gyroscope output */
#define ADIS16260_AUX_ADC    0x0A /* analog input channel measurement */
#define ADIS16260_TEMP_OUT   0x0C /* internal temperature measurement */
#define ADIS16260_ANGL_OUT   0x0E /* angle displacement */
#define ADIS16260_GYRO_OFF   0x14 /* Calibration, offset/bias adjustment */
#define ADIS16260_GYRO_SCALE 0x16 /* Calibration, scale adjustment */
#define ADIS16260_ALM_MAG1   0x20 /* Alarm 1 magnitude/polarity setting */
#define ADIS16260_ALM_MAG2   0x22 /* Alarm 2 magnitude/polarity setting */
#define ADIS16260_ALM_SMPL1  0x24 /* Alarm 1 dynamic rate of change setting */
#define ADIS16260_ALM_SMPL2  0x26 /* Alarm 2 dynamic rate of change setting */
#define ADIS16260_ALM_CTRL   0x28 /* Alarm control */
#define ADIS16260_AUX_DAC    0x30 /* Auxiliary DAC data */
#define ADIS16260_GPIO_CTRL  0x32 /* Control, digital I/O line */
#define ADIS16260_MSC_CTRL   0x34 /* Control, data ready, self-test settings */
#define ADIS16260_SMPL_PRD   0x36 /* Control, internal sample rate */
#define ADIS16260_SENS_AVG   0x38 /* Control, dynamic range, filtering */
#define ADIS16260_SLP_CNT    0x3A /* Control, sleep mode initiation */
#define ADIS16260_DIAG_STAT  0x3C /* Diagnostic, error flags */
#define ADIS16260_GLOB_CMD   0x3E /* Control, global commands */
#define ADIS16260_LOT_ID1    0x52 /* Lot Identification Code 1 */
#define ADIS16260_LOT_ID2    0x54 /* Lot Identification Code 2 */
#define ADIS16260_PROD_ID    0x56 /* Product identifier;
				   * convert to decimal = 16,265/16,260 */
#define ADIS16260_SERIAL_NUM 0x58 /* Serial number */

#define ADIS16260_OUTPUTS    5

#define ADIS16260_ERROR_ACTIVE			(1<<14)
#define ADIS16260_NEW_DATA			(1<<15)

/* MSC_CTRL */
#define ADIS16260_MSC_CTRL_MEM_TEST		(1<<11)
/* Internal self-test enable */
#define ADIS16260_MSC_CTRL_INT_SELF_TEST	(1<<10)
#define ADIS16260_MSC_CTRL_NEG_SELF_TEST	(1<<9)
#define ADIS16260_MSC_CTRL_POS_SELF_TEST	(1<<8)
#define ADIS16260_MSC_CTRL_DATA_RDY_EN		(1<<2)
#define ADIS16260_MSC_CTRL_DATA_RDY_POL_HIGH	(1<<1)
#define ADIS16260_MSC_CTRL_DATA_RDY_DIO2	(1<<0)

/* SMPL_PRD */
/* Time base (tB): 0 = 1.953 ms, 1 = 60.54 ms */
#define ADIS16260_SMPL_PRD_TIME_BASE	(1<<7)
#define ADIS16260_SMPL_PRD_DIV_MASK	0x7F

/* SLP_CNT */
#define ADIS16260_SLP_CNT_POWER_OFF     0x80

/* DIAG_STAT */
#define ADIS16260_DIAG_STAT_ALARM2	(1<<9)
#define ADIS16260_DIAG_STAT_ALARM1	(1<<8)
#define ADIS16260_DIAG_STAT_FLASH_CHK	(1<<6)
#define ADIS16260_DIAG_STAT_SELF_TEST	(1<<5)
#define ADIS16260_DIAG_STAT_OVERFLOW	(1<<4)
#define ADIS16260_DIAG_STAT_SPI_FAIL	(1<<3)
#define ADIS16260_DIAG_STAT_FLASH_UPT	(1<<2)
#define ADIS16260_DIAG_STAT_POWER_HIGH	(1<<1)
#define ADIS16260_DIAG_STAT_POWER_LOW	(1<<0)

/* GLOB_CMD */
#define ADIS16260_GLOB_CMD_SW_RESET	(1<<7)
#define ADIS16260_GLOB_CMD_FLASH_UPD	(1<<3)
#define ADIS16260_GLOB_CMD_DAC_LATCH	(1<<2)
#define ADIS16260_GLOB_CMD_FAC_CALIB	(1<<1)
#define ADIS16260_GLOB_CMD_AUTO_NULL	(1<<0)

#define ADIS16260_MAX_TX 24
#define ADIS16260_MAX_RX 24

#define ADIS16260_SPI_SLOW	(u32)(300 * 1000)
#define ADIS16260_SPI_BURST	(u32)(1000 * 1000)
#define ADIS16260_SPI_FAST	(u32)(2000 * 1000)

/**
 * struct adis16260_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
 * @negate:		negate the scale parameter
 **/
struct adis16260_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;
	unsigned			negate:1;
};

int adis16260_set_irq(struct device *dev, bool enable);

#ifdef CONFIG_IIO_RING_BUFFER
/* At the moment triggers are only used for ring buffer
 * filling. This may change!
 */

#define ADIS16260_SCAN_SUPPLY	0
#define ADIS16260_SCAN_GYRO	1
#define ADIS16260_SCAN_AUX_ADC	2
#define ADIS16260_SCAN_TEMP	3
#define ADIS16260_SCAN_ANGL	4

void adis16260_remove_trigger(struct iio_dev *indio_dev);
int adis16260_probe_trigger(struct iio_dev *indio_dev);

ssize_t adis16260_read_data_from_ring(struct device *dev,
				      struct device_attribute *attr,
				      char *buf);


int adis16260_configure_ring(struct iio_dev *indio_dev);
void adis16260_unconfigure_ring(struct iio_dev *indio_dev);

#else /* CONFIG_IIO_RING_BUFFER */

static inline void adis16260_remove_trigger(struct iio_dev *indio_dev)
{
}

static inline int adis16260_probe_trigger(struct iio_dev *indio_dev)
{
	return 0;
}

static inline ssize_t
adis16260_read_data_from_ring(struct device *dev,
			      struct device_attribute *attr,
			      char *buf)
{
	return 0;
}

static int adis16260_configure_ring(struct iio_dev *indio_dev)
{
	return 0;
}

static inline void adis16260_unconfigure_ring(struct iio_dev *indio_dev)
{
}

#endif /* CONFIG_IIO_RING_BUFFER */
#endif /* SPI_ADIS16260_H_ */
Commit	Line	Data
089a4198 BS	1	#ifndef SPI_ADIS16260_H_
089a4198 BS	2	#define SPI_ADIS16260_H_
fe346048	3	#include "adis16260_platform_data.h"
089a4198 BS	4
	5	#define ADIS16260_STARTUP_DELAY 220 /* ms */
	6
	7	#define ADIS16260_READ_REG(a) a
	8	#define ADIS16260_WRITE_REG(a) ((a) \| 0x80)
	9
	10	#define ADIS16260_FLASH_CNT 0x00 /* Flash memory write count */
	11	#define ADIS16260_SUPPLY_OUT 0x02 /* Power supply measurement */
	12	#define ADIS16260_GYRO_OUT 0x04 /* X-axis gyroscope output */
	13	#define ADIS16260_AUX_ADC 0x0A /* analog input channel measurement */
	14	#define ADIS16260_TEMP_OUT 0x0C /* internal temperature measurement */
	15	#define ADIS16260_ANGL_OUT 0x0E /* angle displacement */
	16	#define ADIS16260_GYRO_OFF 0x14 /* Calibration, offset/bias adjustment */
	17	#define ADIS16260_GYRO_SCALE 0x16 /* Calibration, scale adjustment */
	18	#define ADIS16260_ALM_MAG1 0x20 /* Alarm 1 magnitude/polarity setting */
	19	#define ADIS16260_ALM_MAG2 0x22 /* Alarm 2 magnitude/polarity setting */
	20	#define ADIS16260_ALM_SMPL1 0x24 /* Alarm 1 dynamic rate of change setting */
	21	#define ADIS16260_ALM_SMPL2 0x26 /* Alarm 2 dynamic rate of change setting */
	22	#define ADIS16260_ALM_CTRL 0x28 /* Alarm control */
	23	#define ADIS16260_AUX_DAC 0x30 /* Auxiliary DAC data */
	24	#define ADIS16260_GPIO_CTRL 0x32 /* Control, digital I/O line */
	25	#define ADIS16260_MSC_CTRL 0x34 /* Control, data ready, self-test settings */
	26	#define ADIS16260_SMPL_PRD 0x36 /* Control, internal sample rate */
	27	#define ADIS16260_SENS_AVG 0x38 /* Control, dynamic range, filtering */
	28	#define ADIS16260_SLP_CNT 0x3A /* Control, sleep mode initiation */
	29	#define ADIS16260_DIAG_STAT 0x3C /* Diagnostic, error flags */
	30	#define ADIS16260_GLOB_CMD 0x3E /* Control, global commands */
	31	#define ADIS16260_LOT_ID1 0x52 /* Lot Identification Code 1 */
	32	#define ADIS16260_LOT_ID2 0x54 /* Lot Identification Code 2 */
	33	#define ADIS16260_PROD_ID 0x56 /* Product identifier;
	34	* convert to decimal = 16,265/16,260 */
	35	#define ADIS16260_SERIAL_NUM 0x58 /* Serial number */
	36
	37	#define ADIS16260_OUTPUTS 5
	38
	39	#define ADIS16260_ERROR_ACTIVE (1<<14)
	40	#define ADIS16260_NEW_DATA (1<<15)
	41
	42	/* MSC_CTRL */
	43	#define ADIS16260_MSC_CTRL_MEM_TEST (1<<11)
	44	/* Internal self-test enable */
	45	#define ADIS16260_MSC_CTRL_INT_SELF_TEST (1<<10)
	46	#define ADIS16260_MSC_CTRL_NEG_SELF_TEST (1<<9)
	47	#define ADIS16260_MSC_CTRL_POS_SELF_TEST (1<<8)
	48	#define ADIS16260_MSC_CTRL_DATA_RDY_EN (1<<2)
	49	#define ADIS16260_MSC_CTRL_DATA_RDY_POL_HIGH (1<<1)
	50	#define ADIS16260_MSC_CTRL_DATA_RDY_DIO2 (1<<0)
	51
	52	/* SMPL_PRD */
	53	/* Time base (tB): 0 = 1.953 ms, 1 = 60.54 ms */
	54	#define ADIS16260_SMPL_PRD_TIME_BASE (1<<7)
	55	#define ADIS16260_SMPL_PRD_DIV_MASK 0x7F
	56
	57	/* SLP_CNT */
	58	#define ADIS16260_SLP_CNT_POWER_OFF 0x80
	59
	60	/* DIAG_STAT */
	61	#define ADIS16260_DIAG_STAT_ALARM2 (1<<9)
	62	#define ADIS16260_DIAG_STAT_ALARM1 (1<<8)
	63	#define ADIS16260_DIAG_STAT_FLASH_CHK (1<<6)
	64	#define ADIS16260_DIAG_STAT_SELF_TEST (1<<5)
	65	#define ADIS16260_DIAG_STAT_OVERFLOW (1<<4)
	66	#define ADIS16260_DIAG_STAT_SPI_FAIL (1<<3)
	67	#define ADIS16260_DIAG_STAT_FLASH_UPT (1<<2)
68	#define ADIS16260_DIAG_STAT_POWER_HIGH (1<<1)
69	#define ADIS16260_DIAG_STAT_POWER_LOW (1<<0)
70
71	/* GLOB_CMD */
72	#define ADIS16260_GLOB_CMD_SW_RESET (1<<7)
73	#define ADIS16260_GLOB_CMD_FLASH_UPD (1<<3)
74	#define ADIS16260_GLOB_CMD_DAC_LATCH (1<<2)
75	#define ADIS16260_GLOB_CMD_FAC_CALIB (1<<1)
76	#define ADIS16260_GLOB_CMD_AUTO_NULL (1<<0)
77
78	#define ADIS16260_MAX_TX 24
79	#define ADIS16260_MAX_RX 24
80
81	#define ADIS16260_SPI_SLOW (u32)(300 * 1000)
82	#define ADIS16260_SPI_BURST (u32)(1000 * 1000)
83	#define ADIS16260_SPI_FAST (u32)(2000 * 1000)
84
85	/**
86	* struct adis16260_state - device instance specific data
87	* @us: actual spi_device
88	* @work_trigger_to_ring: bh for triggered event handling
089a4198 BS	89	* @inter: used to check if new interrupt has been triggered
	90	* @last_timestamp: passing timestamp from th to bh of interrupt handler
	91	* @indio_dev: industrial I/O device structure
	92	* @trig: data ready trigger registered with iio
	93	* @tx: transmit buffer
25985edc	94	* @rx: receive buffer
089a4198	95	* @buf_lock: mutex to protect tx and rx
fe346048	96	* @negate: negate the scale parameter
089a4198 BS	97	**/
	98	struct adis16260_state {
	99	struct spi_device *us;
	100	struct work_struct work_trigger_to_ring;
089a4198 BS	101	s64 last_timestamp;
	102	struct iio_dev *indio_dev;
	103	struct iio_trigger *trig;
	104	u8 *tx;
	105	u8 *rx;
	106	struct mutex buf_lock;
fe346048	107	unsigned negate:1;
089a4198 BS	108	};
	109
	110	int adis16260_set_irq(struct device *dev, bool enable);
	111
	112	#ifdef CONFIG_IIO_RING_BUFFER
	113	/* At the moment triggers are only used for ring buffer
	114	* filling. This may change!
	115	*/
	116
69584bd6 JC	117	#define ADIS16260_SCAN_SUPPLY 0
	118	#define ADIS16260_SCAN_GYRO 1
	119	#define ADIS16260_SCAN_AUX_ADC 2
	120	#define ADIS16260_SCAN_TEMP 3
	121	#define ADIS16260_SCAN_ANGL 4
089a4198 BS	122
	123	void adis16260_remove_trigger(struct iio_dev *indio_dev);
	124	int adis16260_probe_trigger(struct iio_dev *indio_dev);
	125
	126	ssize_t adis16260_read_data_from_ring(struct device *dev,
	127	struct device_attribute *attr,
	128	char *buf);
	129
	130
	131	int adis16260_configure_ring(struct iio_dev *indio_dev);
	132	void adis16260_unconfigure_ring(struct iio_dev *indio_dev);
	133
089a4198 BS	134	#else /* CONFIG_IIO_RING_BUFFER */
	135
	136	static inline void adis16260_remove_trigger(struct iio_dev *indio_dev)
	137	{
	138	}
	139
	140	static inline int adis16260_probe_trigger(struct iio_dev *indio_dev)
	141	{
	142	return 0;
	143	}
	144
	145	static inline ssize_t
	146	adis16260_read_data_from_ring(struct device *dev,
	147	struct device_attribute *attr,
	148	char *buf)
	149	{
	150	return 0;
	151	}
	152
	153	static int adis16260_configure_ring(struct iio_dev *indio_dev)
	154	{
	155	return 0;
	156	}
	157
	158	static inline void adis16260_unconfigure_ring(struct iio_dev *indio_dev)
	159	{
	160	}
	161
089a4198 BS	162	#endif /* CONFIG_IIO_RING_BUFFER */
089a4198 BS	163	#endif /* SPI_ADIS16260_H_ */