diff options
Diffstat (limited to 'drivers/staging/iio/accel/adis16201.h')
-rw-r--r-- | drivers/staging/iio/accel/adis16201.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/drivers/staging/iio/accel/adis16201.h b/drivers/staging/iio/accel/adis16201.h new file mode 100644 index 00000000000..c9bf22c1342 --- /dev/null +++ b/drivers/staging/iio/accel/adis16201.h | |||
@@ -0,0 +1,150 @@ | |||
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 | ||
73 | * @rx: recieve buffer | ||
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_ */ | ||