[mirror_ubuntu-zesty-kernel.git] / drivers / staging / iio / accel / adis16201.h

#ifndef SPI_ADIS16201_H_
#define SPI_ADIS16201_H_

#define ADIS16201_STARTUP_DELAY	220 /* ms */

#define ADIS16201_READ_REG(a)    a
#define ADIS16201_WRITE_REG(a) ((a) | 0x80)

#define ADIS16201_FLASH_CNT      0x00 /* Flash memory write count */
#define ADIS16201_SUPPLY_OUT     0x02 /* Output, power supply */
#define ADIS16201_XACCL_OUT      0x04 /* Output, x-axis accelerometer */
#define ADIS16201_YACCL_OUT      0x06 /* Output, y-axis accelerometer */
#define ADIS16201_AUX_ADC        0x08 /* Output, auxiliary ADC input */
#define ADIS16201_TEMP_OUT       0x0A /* Output, temperature */
#define ADIS16201_XINCL_OUT      0x0C /* Output, x-axis inclination */
#define ADIS16201_YINCL_OUT      0x0E /* Output, y-axis inclination */
#define ADIS16201_XACCL_OFFS     0x10 /* Calibration, x-axis acceleration offset */
#define ADIS16201_YACCL_OFFS     0x12 /* Calibration, y-axis acceleration offset */
#define ADIS16201_XACCL_SCALE    0x14 /* x-axis acceleration scale factor */
#define ADIS16201_YACCL_SCALE    0x16 /* y-axis acceleration scale factor */
#define ADIS16201_XINCL_OFFS     0x18 /* Calibration, x-axis inclination offset */
#define ADIS16201_YINCL_OFFS     0x1A /* Calibration, y-axis inclination offset */
#define ADIS16201_XINCL_SCALE    0x1C /* x-axis inclination scale factor */
#define ADIS16201_YINCL_SCALE    0x1E /* y-axis inclination scale factor */
#define ADIS16201_ALM_MAG1       0x20 /* Alarm 1 amplitude threshold */
#define ADIS16201_ALM_MAG2       0x22 /* Alarm 2 amplitude threshold */
#define ADIS16201_ALM_SMPL1      0x24 /* Alarm 1, sample period */
#define ADIS16201_ALM_SMPL2      0x26 /* Alarm 2, sample period */
#define ADIS16201_ALM_CTRL       0x28 /* Alarm control */
#define ADIS16201_AUX_DAC        0x30 /* Auxiliary DAC data */
#define ADIS16201_GPIO_CTRL      0x32 /* General-purpose digital input/output control */
#define ADIS16201_MSC_CTRL       0x34 /* Miscellaneous control */
#define ADIS16201_SMPL_PRD       0x36 /* Internal sample period (rate) control */
#define ADIS16201_AVG_CNT        0x38 /* Operation, filter configuration */
#define ADIS16201_SLP_CNT        0x3A /* Operation, sleep mode control */
#define ADIS16201_DIAG_STAT      0x3C /* Diagnostics, system status register */
#define ADIS16201_GLOB_CMD       0x3E /* Operation, system command register */

#define ADIS16201_OUTPUTS        7

/* MSC_CTRL */
#define ADIS16201_MSC_CTRL_SELF_TEST_EN	        (1 << 8)  /* Self-test enable */
#define ADIS16201_MSC_CTRL_DATA_RDY_EN	        (1 << 2)  /* Data-ready enable: 1 = enabled, 0 = disabled */
#define ADIS16201_MSC_CTRL_ACTIVE_HIGH	        (1 << 1)  /* Data-ready polarity: 1 = active high, 0 = active low */
#define ADIS16201_MSC_CTRL_DATA_RDY_DIO1	(1 << 0)  /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */

/* DIAG_STAT */
#define ADIS16201_DIAG_STAT_ALARM2        (1<<9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
#define ADIS16201_DIAG_STAT_ALARM1        (1<<8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
#define ADIS16201_DIAG_STAT_SPI_FAIL	  (1<<3) /* SPI communications failure */
#define ADIS16201_DIAG_STAT_FLASH_UPT	  (1<<2) /* Flash update failure */
#define ADIS16201_DIAG_STAT_POWER_HIGH	  (1<<1) /* Power supply above 3.625 V */
#define ADIS16201_DIAG_STAT_POWER_LOW	  (1<<0) /* Power supply below 3.15 V */

/* GLOB_CMD */
#define ADIS16201_GLOB_CMD_SW_RESET	(1<<7)
#define ADIS16201_GLOB_CMD_FACTORY_CAL	(1<<1)

#define ADIS16201_MAX_TX 14
#define ADIS16201_MAX_RX 14

#define ADIS16201_ERROR_ACTIVE          (1<<14)

/**
 * struct adis16201_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 adis16201_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 adis16201_set_irq(struct device *dev, bool enable);

#ifdef CONFIG_IIO_RING_BUFFER
enum adis16201_scan {
	ADIS16201_SCAN_SUPPLY,
	ADIS16201_SCAN_ACC_X,
	ADIS16201_SCAN_ACC_Y,
	ADIS16201_SCAN_AUX_ADC,
	ADIS16201_SCAN_TEMP,
	ADIS16201_SCAN_INCLI_X,
	ADIS16201_SCAN_INCLI_Y,
};

void adis16201_remove_trigger(struct iio_dev *indio_dev);
int adis16201_probe_trigger(struct iio_dev *indio_dev);

ssize_t adis16201_read_data_from_ring(struct device *dev,
				      struct device_attribute *attr,
				      char *buf);

int adis16201_configure_ring(struct iio_dev *indio_dev);
void adis16201_unconfigure_ring(struct iio_dev *indio_dev);

int adis16201_initialize_ring(struct iio_ring_buffer *ring);
void adis16201_uninitialize_ring(struct iio_ring_buffer *ring);
#else /* CONFIG_IIO_RING_BUFFER */

static inline void adis16201_remove_trigger(struct iio_dev *indio_dev)
{
}

static inline int adis16201_probe_trigger(struct iio_dev *indio_dev)
{
	return 0;
}

static inline ssize_t
adis16201_read_data_from_ring(struct device *dev,
			      struct device_attribute *attr,
			      char *buf)
{
	return 0;
}

static int adis16201_configure_ring(struct iio_dev *indio_dev)
{
	return 0;
}

static inline void adis16201_unconfigure_ring(struct iio_dev *indio_dev)
{
}

static inline int adis16201_initialize_ring(struct iio_ring_buffer *ring)
{
	return 0;
}

static inline void adis16201_uninitialize_ring(struct iio_ring_buffer *ring)
{
}

#endif /* CONFIG_IIO_RING_BUFFER */
#endif /* SPI_ADIS16201_H_ */
Commit	Line	Data
f7fe1d1d BS	1	#ifndef SPI_ADIS16201_H_
	2	#define SPI_ADIS16201_H_
	3
	4	#define ADIS16201_STARTUP_DELAY 220 /* ms */
	5
	6	#define ADIS16201_READ_REG(a) a
	7	#define ADIS16201_WRITE_REG(a) ((a) \| 0x80)
	8
	9	#define ADIS16201_FLASH_CNT 0x00 /* Flash memory write count */
	10	#define ADIS16201_SUPPLY_OUT 0x02 /* Output, power supply */
	11	#define ADIS16201_XACCL_OUT 0x04 /* Output, x-axis accelerometer */
	12	#define ADIS16201_YACCL_OUT 0x06 /* Output, y-axis accelerometer */
	13	#define ADIS16201_AUX_ADC 0x08 /* Output, auxiliary ADC input */
	14	#define ADIS16201_TEMP_OUT 0x0A /* Output, temperature */
	15	#define ADIS16201_XINCL_OUT 0x0C /* Output, x-axis inclination */
	16	#define ADIS16201_YINCL_OUT 0x0E /* Output, y-axis inclination */
	17	#define ADIS16201_XACCL_OFFS 0x10 /* Calibration, x-axis acceleration offset */
	18	#define ADIS16201_YACCL_OFFS 0x12 /* Calibration, y-axis acceleration offset */
	19	#define ADIS16201_XACCL_SCALE 0x14 /* x-axis acceleration scale factor */
	20	#define ADIS16201_YACCL_SCALE 0x16 /* y-axis acceleration scale factor */
	21	#define ADIS16201_XINCL_OFFS 0x18 /* Calibration, x-axis inclination offset */
	22	#define ADIS16201_YINCL_OFFS 0x1A /* Calibration, y-axis inclination offset */
	23	#define ADIS16201_XINCL_SCALE 0x1C /* x-axis inclination scale factor */
	24	#define ADIS16201_YINCL_SCALE 0x1E /* y-axis inclination scale factor */
	25	#define ADIS16201_ALM_MAG1 0x20 /* Alarm 1 amplitude threshold */
	26	#define ADIS16201_ALM_MAG2 0x22 /* Alarm 2 amplitude threshold */
	27	#define ADIS16201_ALM_SMPL1 0x24 /* Alarm 1, sample period */
	28	#define ADIS16201_ALM_SMPL2 0x26 /* Alarm 2, sample period */
	29	#define ADIS16201_ALM_CTRL 0x28 /* Alarm control */
	30	#define ADIS16201_AUX_DAC 0x30 /* Auxiliary DAC data */
	31	#define ADIS16201_GPIO_CTRL 0x32 /* General-purpose digital input/output control */
	32	#define ADIS16201_MSC_CTRL 0x34 /* Miscellaneous control */
	33	#define ADIS16201_SMPL_PRD 0x36 /* Internal sample period (rate) control */
	34	#define ADIS16201_AVG_CNT 0x38 /* Operation, filter configuration */
	35	#define ADIS16201_SLP_CNT 0x3A /* Operation, sleep mode control */
	36	#define ADIS16201_DIAG_STAT 0x3C /* Diagnostics, system status register */
	37	#define ADIS16201_GLOB_CMD 0x3E /* Operation, system command register */
	38
	39	#define ADIS16201_OUTPUTS 7
	40
	41	/* MSC_CTRL */
	42	#define ADIS16201_MSC_CTRL_SELF_TEST_EN (1 << 8) /* Self-test enable */
	43	#define ADIS16201_MSC_CTRL_DATA_RDY_EN (1 << 2) /* Data-ready enable: 1 = enabled, 0 = disabled */
	44	#define ADIS16201_MSC_CTRL_ACTIVE_HIGH (1 << 1) /* Data-ready polarity: 1 = active high, 0 = active low */
	45	#define ADIS16201_MSC_CTRL_DATA_RDY_DIO1 (1 << 0) /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */
	46
	47	/* DIAG_STAT */
	48	#define ADIS16201_DIAG_STAT_ALARM2 (1<<9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
	49	#define ADIS16201_DIAG_STAT_ALARM1 (1<<8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
	50	#define ADIS16201_DIAG_STAT_SPI_FAIL (1<<3) /* SPI communications failure */
	51	#define ADIS16201_DIAG_STAT_FLASH_UPT (1<<2) /* Flash update failure */
	52	#define ADIS16201_DIAG_STAT_POWER_HIGH (1<<1) /* Power supply above 3.625 V */
	53	#define ADIS16201_DIAG_STAT_POWER_LOW (1<<0) /* Power supply below 3.15 V */
	54
	55	/* GLOB_CMD */
	56	#define ADIS16201_GLOB_CMD_SW_RESET (1<<7)
	57	#define ADIS16201_GLOB_CMD_FACTORY_CAL (1<<1)
	58
	59	#define ADIS16201_MAX_TX 14
	60	#define ADIS16201_MAX_RX 14
	61
	62	#define ADIS16201_ERROR_ACTIVE (1<<14)
	63
	64	/**
65	* struct adis16201_state - device instance specific data
66	* @us: actual spi_device
67	* @work_trigger_to_ring: bh for triggered event handling
68	* @inter: used to check if new interrupt has been triggered
69	* @last_timestamp: passing timestamp from th to bh of interrupt handler
70	* @indio_dev: industrial I/O device structure
71	* @trig: data ready trigger registered with iio
72	* @tx: transmit buffer
25985edc	73	* @rx: receive buffer
f7fe1d1d BS	74	* @buf_lock: mutex to protect tx and rx
	75	**/
	76	struct adis16201_state {
	77	struct spi_device *us;
	78	struct work_struct work_trigger_to_ring;
	79	s64 last_timestamp;
	80	struct iio_dev *indio_dev;
	81	struct iio_trigger *trig;
	82	u8 *tx;
	83	u8 *rx;
	84	struct mutex buf_lock;
	85	};
	86
	87	int adis16201_set_irq(struct device *dev, bool enable);
	88
	89	#ifdef CONFIG_IIO_RING_BUFFER
	90	enum adis16201_scan {
	91	ADIS16201_SCAN_SUPPLY,
	92	ADIS16201_SCAN_ACC_X,
	93	ADIS16201_SCAN_ACC_Y,
	94	ADIS16201_SCAN_AUX_ADC,
	95	ADIS16201_SCAN_TEMP,
	96	ADIS16201_SCAN_INCLI_X,
	97	ADIS16201_SCAN_INCLI_Y,
	98	};
	99
	100	void adis16201_remove_trigger(struct iio_dev *indio_dev);
	101	int adis16201_probe_trigger(struct iio_dev *indio_dev);
	102
	103	ssize_t adis16201_read_data_from_ring(struct device *dev,
	104	struct device_attribute *attr,
	105	char *buf);
	106
	107	int adis16201_configure_ring(struct iio_dev *indio_dev);
	108	void adis16201_unconfigure_ring(struct iio_dev *indio_dev);
	109
	110	int adis16201_initialize_ring(struct iio_ring_buffer *ring);
	111	void adis16201_uninitialize_ring(struct iio_ring_buffer *ring);
	112	#else /* CONFIG_IIO_RING_BUFFER */
	113
	114	static inline void adis16201_remove_trigger(struct iio_dev *indio_dev)
	115	{
	116	}
	117
	118	static inline int adis16201_probe_trigger(struct iio_dev *indio_dev)
	119	{
	120	return 0;
	121	}
	122
	123	static inline ssize_t
	124	adis16201_read_data_from_ring(struct device *dev,
	125	struct device_attribute *attr,
	126	char *buf)
	127	{
	128	return 0;
	129	}
	130
	131	static int adis16201_configure_ring(struct iio_dev *indio_dev)
	132	{
	133	return 0;
	134	}
	135
	136	static inline void adis16201_unconfigure_ring(struct iio_dev *indio_dev)
	137	{
138	}
139
140	static inline int adis16201_initialize_ring(struct iio_ring_buffer *ring)
141	{
142	return 0;
143	}
144
145	static inline void adis16201_uninitialize_ring(struct iio_ring_buffer *ring)
146	{
147	}
148
149	#endif /* CONFIG_IIO_RING_BUFFER */
150	#endif /* SPI_ADIS16201_H_ */