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1 | #ifndef SPI_ADIS16203_H_ |
2 | #define SPI_ADIS16203_H_ | |
3 | ||
4 | #define ADIS16203_STARTUP_DELAY 220 /* ms */ | |
5 | ||
6 | #define ADIS16203_READ_REG(a) a | |
7 | #define ADIS16203_WRITE_REG(a) ((a) | 0x80) | |
8 | ||
9 | #define ADIS16203_FLASH_CNT 0x00 /* Flash memory write count */ | |
10 | #define ADIS16203_SUPPLY_OUT 0x02 /* Output, power supply */ | |
11 | #define ADIS16203_AUX_ADC 0x08 /* Output, auxiliary ADC input */ | |
12 | #define ADIS16203_TEMP_OUT 0x0A /* Output, temperature */ | |
13 | #define ADIS16203_XINCL_OUT 0x0C /* Output, x-axis inclination */ | |
14 | #define ADIS16203_YINCL_OUT 0x0E /* Output, y-axis inclination */ | |
15 | #define ADIS16203_INCL_NULL 0x18 /* Incline null calibration */ | |
16 | #define ADIS16203_ALM_MAG1 0x20 /* Alarm 1 amplitude threshold */ | |
17 | #define ADIS16203_ALM_MAG2 0x22 /* Alarm 2 amplitude threshold */ | |
18 | #define ADIS16203_ALM_SMPL1 0x24 /* Alarm 1, sample period */ | |
19 | #define ADIS16203_ALM_SMPL2 0x26 /* Alarm 2, sample period */ | |
20 | #define ADIS16203_ALM_CTRL 0x28 /* Alarm control */ | |
21 | #define ADIS16203_AUX_DAC 0x30 /* Auxiliary DAC data */ | |
22 | #define ADIS16203_GPIO_CTRL 0x32 /* General-purpose digital input/output control */ | |
23 | #define ADIS16203_MSC_CTRL 0x34 /* Miscellaneous control */ | |
24 | #define ADIS16203_SMPL_PRD 0x36 /* Internal sample period (rate) control */ | |
25 | #define ADIS16203_AVG_CNT 0x38 /* Operation, filter configuration */ | |
26 | #define ADIS16203_SLP_CNT 0x3A /* Operation, sleep mode control */ | |
27 | #define ADIS16203_DIAG_STAT 0x3C /* Diagnostics, system status register */ | |
28 | #define ADIS16203_GLOB_CMD 0x3E /* Operation, system command register */ | |
29 | ||
30 | #define ADIS16203_OUTPUTS 5 | |
31 | ||
32 | /* MSC_CTRL */ | |
33 | #define ADIS16203_MSC_CTRL_PWRUP_SELF_TEST (1 << 10) /* Self-test at power-on: 1 = disabled, 0 = enabled */ | |
34 | #define ADIS16203_MSC_CTRL_REVERSE_ROT_EN (1 << 9) /* Reverses rotation of both inclination outputs */ | |
35 | #define ADIS16203_MSC_CTRL_SELF_TEST_EN (1 << 8) /* Self-test enable */ | |
36 | #define ADIS16203_MSC_CTRL_DATA_RDY_EN (1 << 2) /* Data-ready enable: 1 = enabled, 0 = disabled */ | |
37 | #define ADIS16203_MSC_CTRL_ACTIVE_HIGH (1 << 1) /* Data-ready polarity: 1 = active high, 0 = active low */ | |
38 | #define ADIS16203_MSC_CTRL_DATA_RDY_DIO1 (1 << 0) /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */ | |
39 | ||
40 | /* DIAG_STAT */ | |
41 | #define ADIS16203_DIAG_STAT_ALARM2 (1<<9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ | |
42 | #define ADIS16203_DIAG_STAT_ALARM1 (1<<8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ | |
43 | #define ADIS16203_DIAG_STAT_SELFTEST_FAIL (1<<5) /* Self-test diagnostic error flag */ | |
44 | #define ADIS16203_DIAG_STAT_SPI_FAIL (1<<3) /* SPI communications failure */ | |
45 | #define ADIS16203_DIAG_STAT_FLASH_UPT (1<<2) /* Flash update failure */ | |
46 | #define ADIS16203_DIAG_STAT_POWER_HIGH (1<<1) /* Power supply above 3.625 V */ | |
47 | #define ADIS16203_DIAG_STAT_POWER_LOW (1<<0) /* Power supply below 3.15 V */ | |
48 | ||
49 | /* GLOB_CMD */ | |
50 | #define ADIS16203_GLOB_CMD_SW_RESET (1<<7) | |
51 | #define ADIS16203_GLOB_CMD_CLEAR_STAT (1<<4) | |
52 | #define ADIS16203_GLOB_CMD_FACTORY_CAL (1<<1) | |
53 | ||
54 | #define ADIS16203_MAX_TX 12 | |
55 | #define ADIS16203_MAX_RX 10 | |
56 | ||
57 | #define ADIS16203_ERROR_ACTIVE (1<<14) | |
58 | ||
59 | /** | |
60 | * struct adis16203_state - device instance specific data | |
61 | * @us: actual spi_device | |
62 | * @work_trigger_to_ring: bh for triggered event handling | |
63 | * @inter: used to check if new interrupt has been triggered | |
64 | * @last_timestamp: passing timestamp from th to bh of interrupt handler | |
65 | * @indio_dev: industrial I/O device structure | |
66 | * @trig: data ready trigger registered with iio | |
67 | * @tx: transmit buffer | |
25985edc | 68 | * @rx: receive buffer |
f11ba4f5 BS |
69 | * @buf_lock: mutex to protect tx and rx |
70 | **/ | |
71 | struct adis16203_state { | |
72 | struct spi_device *us; | |
73 | struct work_struct work_trigger_to_ring; | |
74 | s64 last_timestamp; | |
75 | struct iio_dev *indio_dev; | |
76 | struct iio_trigger *trig; | |
77 | u8 *tx; | |
78 | u8 *rx; | |
79 | struct mutex buf_lock; | |
80 | }; | |
81 | ||
82 | int adis16203_set_irq(struct device *dev, bool enable); | |
83 | ||
84 | #ifdef CONFIG_IIO_RING_BUFFER | |
85 | enum adis16203_scan { | |
86 | ADIS16203_SCAN_SUPPLY, | |
87 | ADIS16203_SCAN_AUX_ADC, | |
88 | ADIS16203_SCAN_TEMP, | |
89 | ADIS16203_SCAN_INCLI_X, | |
90 | ADIS16203_SCAN_INCLI_Y, | |
91 | }; | |
92 | ||
93 | void adis16203_remove_trigger(struct iio_dev *indio_dev); | |
94 | int adis16203_probe_trigger(struct iio_dev *indio_dev); | |
95 | ||
96 | ssize_t adis16203_read_data_from_ring(struct device *dev, | |
97 | struct device_attribute *attr, | |
98 | char *buf); | |
99 | ||
100 | int adis16203_configure_ring(struct iio_dev *indio_dev); | |
101 | void adis16203_unconfigure_ring(struct iio_dev *indio_dev); | |
102 | ||
103 | int adis16203_initialize_ring(struct iio_ring_buffer *ring); | |
104 | void adis16203_uninitialize_ring(struct iio_ring_buffer *ring); | |
105 | #else /* CONFIG_IIO_RING_BUFFER */ | |
106 | ||
107 | static inline void adis16203_remove_trigger(struct iio_dev *indio_dev) | |
108 | { | |
109 | } | |
110 | ||
111 | static inline int adis16203_probe_trigger(struct iio_dev *indio_dev) | |
112 | { | |
113 | return 0; | |
114 | } | |
115 | ||
116 | static inline ssize_t | |
117 | adis16203_read_data_from_ring(struct device *dev, | |
118 | struct device_attribute *attr, | |
119 | char *buf) | |
120 | { | |
121 | return 0; | |
122 | } | |
123 | ||
124 | static int adis16203_configure_ring(struct iio_dev *indio_dev) | |
125 | { | |
126 | return 0; | |
127 | } | |
128 | ||
129 | static inline void adis16203_unconfigure_ring(struct iio_dev *indio_dev) | |
130 | { | |
131 | } | |
132 | ||
133 | static inline int adis16203_initialize_ring(struct iio_ring_buffer *ring) | |
134 | { | |
135 | return 0; | |
136 | } | |
137 | ||
138 | static inline void adis16203_uninitialize_ring(struct iio_ring_buffer *ring) | |
139 | { | |
140 | } | |
141 | ||
142 | #endif /* CONFIG_IIO_RING_BUFFER */ | |
143 | #endif /* SPI_ADIS16203_H_ */ |