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1 | #ifndef SPI_ADIS16204_H_ |
2 | #define SPI_ADIS16204_H_ | |
3 | ||
4 | #define ADIS16204_STARTUP_DELAY 220 /* ms */ | |
5 | ||
6 | #define ADIS16204_READ_REG(a) a | |
7 | #define ADIS16204_WRITE_REG(a) ((a) | 0x80) | |
8 | ||
9 | #define ADIS16204_FLASH_CNT 0x00 /* Flash memory write count */ | |
10 | #define ADIS16204_SUPPLY_OUT 0x02 /* Output, power supply */ | |
11 | #define ADIS16204_XACCL_OUT 0x04 /* Output, x-axis accelerometer */ | |
12 | #define ADIS16204_YACCL_OUT 0x06 /* Output, y-axis accelerometer */ | |
13 | #define ADIS16204_AUX_ADC 0x08 /* Output, auxiliary ADC input */ | |
14 | #define ADIS16204_TEMP_OUT 0x0A /* Output, temperature */ | |
15 | #define ADIS16204_X_PEAK_OUT 0x0C /* Twos complement */ | |
16 | #define ADIS16204_Y_PEAK_OUT 0x0E /* Twos complement */ | |
17 | #define ADIS16204_XACCL_NULL 0x10 /* Calibration, x-axis acceleration offset null */ | |
18 | #define ADIS16204_YACCL_NULL 0x12 /* Calibration, y-axis acceleration offset null */ | |
19 | #define ADIS16204_XACCL_SCALE 0x14 /* X-axis scale factor calibration register */ | |
20 | #define ADIS16204_YACCL_SCALE 0x16 /* Y-axis scale factor calibration register */ | |
21 | #define ADIS16204_XY_RSS_OUT 0x18 /* XY combined acceleration (RSS) */ | |
22 | #define ADIS16204_XY_PEAK_OUT 0x1A /* Peak, XY combined output (RSS) */ | |
23 | #define ADIS16204_CAP_BUF_1 0x1C /* Capture buffer output register 1 */ | |
24 | #define ADIS16204_CAP_BUF_2 0x1E /* Capture buffer output register 2 */ | |
25 | #define ADIS16204_ALM_MAG1 0x20 /* Alarm 1 amplitude threshold */ | |
26 | #define ADIS16204_ALM_MAG2 0x22 /* Alarm 2 amplitude threshold */ | |
27 | #define ADIS16204_ALM_CTRL 0x28 /* Alarm control */ | |
28 | #define ADIS16204_CAPT_PNTR 0x2A /* Capture register address pointer */ | |
29 | #define ADIS16204_AUX_DAC 0x30 /* Auxiliary DAC data */ | |
30 | #define ADIS16204_GPIO_CTRL 0x32 /* General-purpose digital input/output control */ | |
31 | #define ADIS16204_MSC_CTRL 0x34 /* Miscellaneous control */ | |
32 | #define ADIS16204_SMPL_PRD 0x36 /* Internal sample period (rate) control */ | |
33 | #define ADIS16204_AVG_CNT 0x38 /* Operation, filter configuration */ | |
34 | #define ADIS16204_SLP_CNT 0x3A /* Operation, sleep mode control */ | |
35 | #define ADIS16204_DIAG_STAT 0x3C /* Diagnostics, system status register */ | |
36 | #define ADIS16204_GLOB_CMD 0x3E /* Operation, system command register */ | |
37 | ||
38 | #define ADIS16204_OUTPUTS 5 | |
39 | ||
40 | /* MSC_CTRL */ | |
41 | #define ADIS16204_MSC_CTRL_PWRUP_SELF_TEST (1 << 10) /* Self-test at power-on: 1 = disabled, 0 = enabled */ | |
42 | #define ADIS16204_MSC_CTRL_SELF_TEST_EN (1 << 8) /* Self-test enable */ | |
43 | #define ADIS16204_MSC_CTRL_DATA_RDY_EN (1 << 2) /* Data-ready enable: 1 = enabled, 0 = disabled */ | |
44 | #define ADIS16204_MSC_CTRL_ACTIVE_HIGH (1 << 1) /* Data-ready polarity: 1 = active high, 0 = active low */ | |
45 | #define ADIS16204_MSC_CTRL_DATA_RDY_DIO2 (1 << 0) /* Data-ready line selection: 1 = DIO2, 0 = DIO1 */ | |
46 | ||
47 | /* DIAG_STAT */ | |
48 | #define ADIS16204_DIAG_STAT_ALARM2 (1<<9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ | |
49 | #define ADIS16204_DIAG_STAT_ALARM1 (1<<8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ | |
50 | #define ADIS16204_DIAG_STAT_SELFTEST_FAIL (1<<5) /* Self-test diagnostic error flag: 1 = error condition, | |
51 | 0 = normal operation */ | |
52 | #define ADIS16204_DIAG_STAT_SPI_FAIL (1<<3) /* SPI communications failure */ | |
53 | #define ADIS16204_DIAG_STAT_FLASH_UPT (1<<2) /* Flash update failure */ | |
54 | #define ADIS16204_DIAG_STAT_POWER_HIGH (1<<1) /* Power supply above 3.625 V */ | |
55 | #define ADIS16204_DIAG_STAT_POWER_LOW (1<<0) /* Power supply below 2.975 V */ | |
56 | ||
57 | /* GLOB_CMD */ | |
58 | #define ADIS16204_GLOB_CMD_SW_RESET (1<<7) | |
59 | #define ADIS16204_GLOB_CMD_CLEAR_STAT (1<<4) | |
60 | #define ADIS16204_GLOB_CMD_FACTORY_CAL (1<<1) | |
61 | ||
62 | #define ADIS16204_MAX_TX 24 | |
63 | #define ADIS16204_MAX_RX 24 | |
64 | ||
65 | #define ADIS16204_ERROR_ACTIVE (1<<14) | |
66 | ||
67 | /** | |
68 | * struct adis16204_state - device instance specific data | |
69 | * @us: actual spi_device | |
70 | * @work_trigger_to_ring: bh for triggered event handling | |
71 | * @inter: used to check if new interrupt has been triggered | |
72 | * @last_timestamp: passing timestamp from th to bh of interrupt handler | |
73 | * @indio_dev: industrial I/O device structure | |
74 | * @trig: data ready trigger registered with iio | |
75 | * @tx: transmit buffer | |
25985edc | 76 | * @rx: receive buffer |
bb6f19ea BS |
77 | * @buf_lock: mutex to protect tx and rx |
78 | **/ | |
79 | struct adis16204_state { | |
80 | struct spi_device *us; | |
81 | struct work_struct work_trigger_to_ring; | |
82 | s64 last_timestamp; | |
83 | struct iio_dev *indio_dev; | |
84 | struct iio_trigger *trig; | |
85 | u8 *tx; | |
86 | u8 *rx; | |
87 | struct mutex buf_lock; | |
88 | }; | |
89 | ||
90 | int adis16204_set_irq(struct device *dev, bool enable); | |
91 | ||
92 | #ifdef CONFIG_IIO_RING_BUFFER | |
93 | enum adis16204_scan { | |
94 | ADIS16204_SCAN_SUPPLY, | |
95 | ADIS16204_SCAN_ACC_X, | |
96 | ADIS16204_SCAN_ACC_Y, | |
97 | ADIS16204_SCAN_AUX_ADC, | |
98 | ADIS16204_SCAN_TEMP, | |
99 | }; | |
100 | ||
101 | void adis16204_remove_trigger(struct iio_dev *indio_dev); | |
102 | int adis16204_probe_trigger(struct iio_dev *indio_dev); | |
103 | ||
104 | ssize_t adis16204_read_data_from_ring(struct device *dev, | |
105 | struct device_attribute *attr, | |
106 | char *buf); | |
107 | ||
108 | int adis16204_configure_ring(struct iio_dev *indio_dev); | |
109 | void adis16204_unconfigure_ring(struct iio_dev *indio_dev); | |
110 | ||
111 | int adis16204_initialize_ring(struct iio_ring_buffer *ring); | |
112 | void adis16204_uninitialize_ring(struct iio_ring_buffer *ring); | |
113 | #else /* CONFIG_IIO_RING_BUFFER */ | |
114 | ||
115 | static inline void adis16204_remove_trigger(struct iio_dev *indio_dev) | |
116 | { | |
117 | } | |
118 | ||
119 | static inline int adis16204_probe_trigger(struct iio_dev *indio_dev) | |
120 | { | |
121 | return 0; | |
122 | } | |
123 | ||
124 | static inline ssize_t | |
125 | adis16204_read_data_from_ring(struct device *dev, | |
126 | struct device_attribute *attr, | |
127 | char *buf) | |
128 | { | |
129 | return 0; | |
130 | } | |
131 | ||
132 | static int adis16204_configure_ring(struct iio_dev *indio_dev) | |
133 | { | |
134 | return 0; | |
135 | } | |
136 | ||
137 | static inline void adis16204_unconfigure_ring(struct iio_dev *indio_dev) | |
138 | { | |
139 | } | |
140 | ||
141 | static inline int adis16204_initialize_ring(struct iio_ring_buffer *ring) | |
142 | { | |
143 | return 0; | |
144 | } | |
145 | ||
146 | static inline void adis16204_uninitialize_ring(struct iio_ring_buffer *ring) | |
147 | { | |
148 | } | |
149 | ||
150 | #endif /* CONFIG_IIO_RING_BUFFER */ | |
151 | #endif /* SPI_ADIS16204_H_ */ |