| 1 | #ifndef SPI_ADIS16300_H_ |
| 2 | #define SPI_ADIS16300_H_ |
| 3 | |
| 4 | #define ADIS16300_STARTUP_DELAY 220 /* ms */ |
| 5 | |
| 6 | #define ADIS16300_READ_REG(a) a |
| 7 | #define ADIS16300_WRITE_REG(a) ((a) | 0x80) |
| 8 | |
| 9 | #define ADIS16300_FLASH_CNT 0x00 /* Flash memory write count */ |
| 10 | #define ADIS16300_SUPPLY_OUT 0x02 /* Power supply measurement */ |
| 11 | #define ADIS16300_XGYRO_OUT 0x04 /* X-axis gyroscope output */ |
| 12 | #define ADIS16300_XACCL_OUT 0x0A /* X-axis accelerometer output */ |
| 13 | #define ADIS16300_YACCL_OUT 0x0C /* Y-axis accelerometer output */ |
| 14 | #define ADIS16300_ZACCL_OUT 0x0E /* Z-axis accelerometer output */ |
| 15 | #define ADIS16300_TEMP_OUT 0x10 /* Temperature output */ |
| 16 | #define ADIS16300_XINCLI_OUT 0x12 /* X-axis inclinometer output measurement */ |
| 17 | #define ADIS16300_YINCLI_OUT 0x14 /* Y-axis inclinometer output measurement */ |
| 18 | #define ADIS16300_AUX_ADC 0x16 /* Auxiliary ADC measurement */ |
| 19 | |
| 20 | /* Calibration parameters */ |
| 21 | #define ADIS16300_XGYRO_OFF 0x1A /* X-axis gyroscope bias offset factor */ |
| 22 | #define ADIS16300_XACCL_OFF 0x20 /* X-axis acceleration bias offset factor */ |
| 23 | #define ADIS16300_YACCL_OFF 0x22 /* Y-axis acceleration bias offset factor */ |
| 24 | #define ADIS16300_ZACCL_OFF 0x24 /* Z-axis acceleration bias offset factor */ |
| 25 | |
| 26 | #define ADIS16300_GPIO_CTRL 0x32 /* Auxiliary digital input/output control */ |
| 27 | #define ADIS16300_MSC_CTRL 0x34 /* Miscellaneous control */ |
| 28 | #define ADIS16300_SMPL_PRD 0x36 /* Internal sample period (rate) control */ |
| 29 | #define ADIS16300_SENS_AVG 0x38 /* Dynamic range and digital filter control */ |
| 30 | #define ADIS16300_SLP_CNT 0x3A /* Sleep mode control */ |
| 31 | #define ADIS16300_DIAG_STAT 0x3C /* System status */ |
| 32 | |
| 33 | /* Alarm functions */ |
| 34 | #define ADIS16300_GLOB_CMD 0x3E /* System command */ |
| 35 | #define ADIS16300_ALM_MAG1 0x26 /* Alarm 1 amplitude threshold */ |
| 36 | #define ADIS16300_ALM_MAG2 0x28 /* Alarm 2 amplitude threshold */ |
| 37 | #define ADIS16300_ALM_SMPL1 0x2A /* Alarm 1 sample size */ |
| 38 | #define ADIS16300_ALM_SMPL2 0x2C /* Alarm 2 sample size */ |
| 39 | #define ADIS16300_ALM_CTRL 0x2E /* Alarm control */ |
| 40 | #define ADIS16300_AUX_DAC 0x30 /* Auxiliary DAC data */ |
| 41 | |
| 42 | #define ADIS16300_ERROR_ACTIVE (1<<14) |
| 43 | #define ADIS16300_NEW_DATA (1<<15) |
| 44 | |
| 45 | /* MSC_CTRL */ |
| 46 | #define ADIS16300_MSC_CTRL_MEM_TEST (1<<11) |
| 47 | #define ADIS16300_MSC_CTRL_INT_SELF_TEST (1<<10) |
| 48 | #define ADIS16300_MSC_CTRL_NEG_SELF_TEST (1<<9) |
| 49 | #define ADIS16300_MSC_CTRL_POS_SELF_TEST (1<<8) |
| 50 | #define ADIS16300_MSC_CTRL_GYRO_BIAS (1<<7) |
| 51 | #define ADIS16300_MSC_CTRL_ACCL_ALIGN (1<<6) |
| 52 | #define ADIS16300_MSC_CTRL_DATA_RDY_EN (1<<2) |
| 53 | #define ADIS16300_MSC_CTRL_DATA_RDY_POL_HIGH (1<<1) |
| 54 | #define ADIS16300_MSC_CTRL_DATA_RDY_DIO2 (1<<0) |
| 55 | |
| 56 | /* SMPL_PRD */ |
| 57 | #define ADIS16300_SMPL_PRD_TIME_BASE (1<<7) |
| 58 | #define ADIS16300_SMPL_PRD_DIV_MASK 0x7F |
| 59 | |
| 60 | /* DIAG_STAT */ |
| 61 | #define ADIS16300_DIAG_STAT_ZACCL_FAIL (1<<15) |
| 62 | #define ADIS16300_DIAG_STAT_YACCL_FAIL (1<<14) |
| 63 | #define ADIS16300_DIAG_STAT_XACCL_FAIL (1<<13) |
| 64 | #define ADIS16300_DIAG_STAT_XGYRO_FAIL (1<<10) |
| 65 | #define ADIS16300_DIAG_STAT_ALARM2 (1<<9) |
| 66 | #define ADIS16300_DIAG_STAT_ALARM1 (1<<8) |
| 67 | #define ADIS16300_DIAG_STAT_FLASH_CHK (1<<6) |
| 68 | #define ADIS16300_DIAG_STAT_SELF_TEST (1<<5) |
| 69 | #define ADIS16300_DIAG_STAT_OVERFLOW (1<<4) |
| 70 | #define ADIS16300_DIAG_STAT_SPI_FAIL (1<<3) |
| 71 | #define ADIS16300_DIAG_STAT_FLASH_UPT (1<<2) |
| 72 | #define ADIS16300_DIAG_STAT_POWER_HIGH (1<<1) |
| 73 | #define ADIS16300_DIAG_STAT_POWER_LOW (1<<0) |
| 74 | |
| 75 | /* GLOB_CMD */ |
| 76 | #define ADIS16300_GLOB_CMD_SW_RESET (1<<7) |
| 77 | #define ADIS16300_GLOB_CMD_P_AUTO_NULL (1<<4) |
| 78 | #define ADIS16300_GLOB_CMD_FLASH_UPD (1<<3) |
| 79 | #define ADIS16300_GLOB_CMD_DAC_LATCH (1<<2) |
| 80 | #define ADIS16300_GLOB_CMD_FAC_CALIB (1<<1) |
| 81 | #define ADIS16300_GLOB_CMD_AUTO_NULL (1<<0) |
| 82 | |
| 83 | /* SLP_CNT */ |
| 84 | #define ADIS16300_SLP_CNT_POWER_OFF (1<<8) |
| 85 | |
| 86 | #define ADIS16300_MAX_TX 18 |
| 87 | #define ADIS16300_MAX_RX 18 |
| 88 | |
| 89 | #define ADIS16300_SPI_SLOW (u32)(300 * 1000) |
| 90 | #define ADIS16300_SPI_BURST (u32)(1000 * 1000) |
| 91 | #define ADIS16300_SPI_FAST (u32)(2000 * 1000) |
| 92 | |
| 93 | /** |
| 94 | * struct adis16300_state - device instance specific data |
| 95 | * @us: actual spi_device |
| 96 | * @work_trigger_to_ring: bh for triggered event handling |
| 97 | * @inter: used to check if new interrupt has been triggered |
| 98 | * @last_timestamp: passing timestamp from th to bh of interrupt handler |
| 99 | * @indio_dev: industrial I/O device structure |
| 100 | * @trig: data ready trigger registered with iio |
| 101 | * @tx: transmit buffer |
| 102 | * @rx: receive buffer |
| 103 | * @buf_lock: mutex to protect tx and rx |
| 104 | **/ |
| 105 | struct adis16300_state { |
| 106 | struct spi_device *us; |
| 107 | struct work_struct work_trigger_to_ring; |
| 108 | s64 last_timestamp; |
| 109 | struct iio_dev *indio_dev; |
| 110 | struct iio_trigger *trig; |
| 111 | u8 *tx; |
| 112 | u8 *rx; |
| 113 | struct mutex buf_lock; |
| 114 | }; |
| 115 | |
| 116 | int adis16300_set_irq(struct device *dev, bool enable); |
| 117 | |
| 118 | #ifdef CONFIG_IIO_RING_BUFFER |
| 119 | /* At the moment triggers are only used for ring buffer |
| 120 | * filling. This may change! |
| 121 | */ |
| 122 | |
| 123 | #define ADIS16300_SCAN_SUPPLY 0 |
| 124 | #define ADIS16300_SCAN_GYRO_X 1 |
| 125 | #define ADIS16300_SCAN_ACC_X 2 |
| 126 | #define ADIS16300_SCAN_ACC_Y 3 |
| 127 | #define ADIS16300_SCAN_ACC_Z 4 |
| 128 | #define ADIS16300_SCAN_TEMP 5 |
| 129 | #define ADIS16300_SCAN_ADC_0 6 |
| 130 | #define ADIS16300_SCAN_INCLI_X 7 |
| 131 | #define ADIS16300_SCAN_INCLI_Y 8 |
| 132 | |
| 133 | void adis16300_remove_trigger(struct iio_dev *indio_dev); |
| 134 | int adis16300_probe_trigger(struct iio_dev *indio_dev); |
| 135 | |
| 136 | ssize_t adis16300_read_data_from_ring(struct device *dev, |
| 137 | struct device_attribute *attr, |
| 138 | char *buf); |
| 139 | |
| 140 | |
| 141 | int adis16300_configure_ring(struct iio_dev *indio_dev); |
| 142 | void adis16300_unconfigure_ring(struct iio_dev *indio_dev); |
| 143 | |
| 144 | int adis16300_initialize_ring(struct iio_ring_buffer *ring); |
| 145 | void adis16300_uninitialize_ring(struct iio_ring_buffer *ring); |
| 146 | #else /* CONFIG_IIO_RING_BUFFER */ |
| 147 | |
| 148 | static inline void adis16300_remove_trigger(struct iio_dev *indio_dev) |
| 149 | { |
| 150 | } |
| 151 | |
| 152 | static inline int adis16300_probe_trigger(struct iio_dev *indio_dev) |
| 153 | { |
| 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | static inline ssize_t |
| 158 | adis16300_read_data_from_ring(struct device *dev, |
| 159 | struct device_attribute *attr, |
| 160 | char *buf) |
| 161 | { |
| 162 | return 0; |
| 163 | } |
| 164 | |
| 165 | static int adis16300_configure_ring(struct iio_dev *indio_dev) |
| 166 | { |
| 167 | return 0; |
| 168 | } |
| 169 | |
| 170 | static inline void adis16300_unconfigure_ring(struct iio_dev *indio_dev) |
| 171 | { |
| 172 | } |
| 173 | |
| 174 | static inline int adis16300_initialize_ring(struct iio_ring_buffer *ring) |
| 175 | { |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | static inline void adis16300_uninitialize_ring(struct iio_ring_buffer *ring) |
| 180 | { |
| 181 | } |
| 182 | |
| 183 | #endif /* CONFIG_IIO_RING_BUFFER */ |
| 184 | #endif /* SPI_ADIS16300_H_ */ |