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1#ifndef SPI_ADIS16260_H_
2#define SPI_ADIS16260_H_
3#include "adis16260_platform_data.h"
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 * @trig: data ready trigger registered with iio
89 * @buf_lock: mutex to protect tx and rx
90 * @negate: negate the scale parameter
91 * @tx: transmit buffer
92 * @rx: receive buffer
93 **/
94struct adis16260_state {
95 struct spi_device *us;
96 struct iio_trigger *trig;
97 struct mutex buf_lock;
98 unsigned negate:1;
99 u8 tx[ADIS16260_MAX_TX] ____cacheline_aligned;
100 u8 rx[ADIS16260_MAX_RX];
101};
102
103int adis16260_set_irq(struct iio_dev *indio_dev, bool enable);
104
105/* At the moment triggers are only used for ring buffer
106 * filling. This may change!
107 */
108
109#define ADIS16260_SCAN_SUPPLY 0
110#define ADIS16260_SCAN_GYRO 1
111#define ADIS16260_SCAN_AUX_ADC 2
112#define ADIS16260_SCAN_TEMP 3
113#define ADIS16260_SCAN_ANGL 4
114
115#ifdef CONFIG_IIO_BUFFER
116void adis16260_remove_trigger(struct iio_dev *indio_dev);
117int adis16260_probe_trigger(struct iio_dev *indio_dev);
118
119ssize_t adis16260_read_data_from_ring(struct device *dev,
120 struct device_attribute *attr,
121 char *buf);
122
123
124int adis16260_configure_ring(struct iio_dev *indio_dev);
125void adis16260_unconfigure_ring(struct iio_dev *indio_dev);
126
127#else /* CONFIG_IIO_BUFFER */
128
129static inline void adis16260_remove_trigger(struct iio_dev *indio_dev)
130{
131}
132
133static inline int adis16260_probe_trigger(struct iio_dev *indio_dev)
134{
135 return 0;
136}
137
138static inline ssize_t
139adis16260_read_data_from_ring(struct device *dev,
140 struct device_attribute *attr,
141 char *buf)
142{
143 return 0;
144}
145
146static int adis16260_configure_ring(struct iio_dev *indio_dev)
147{
148 return 0;
149}
150
151static inline void adis16260_unconfigure_ring(struct iio_dev *indio_dev)
152{
153}
154
155#endif /* CONFIG_IIO_BUFFER */
156#endif /* SPI_ADIS16260_H_ */