diff options
Diffstat (limited to 'drivers/staging/iio/accel/adis16220.h')
-rw-r--r-- | drivers/staging/iio/accel/adis16220.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/drivers/staging/iio/accel/adis16220.h b/drivers/staging/iio/accel/adis16220.h new file mode 100644 index 000000000000..2abf4850b373 --- /dev/null +++ b/drivers/staging/iio/accel/adis16220.h @@ -0,0 +1,147 @@ +#ifndef SPI_ADIS16220_H_ +#define SPI_ADIS16220_H_ + +#define ADIS16220_STARTUP_DELAY 220 /* ms */ + +#define ADIS16220_READ_REG(a) a +#define ADIS16220_WRITE_REG(a) ((a) | 0x80) + +/* Flash memory write count */ +#define ADIS16220_FLASH_CNT 0x00 +/* Control, acceleration offset adjustment control */ +#define ADIS16220_ACCL_NULL 0x02 +/* Control, AIN1 offset adjustment control */ +#define ADIS16220_AIN1_NULL 0x04 +/* Control, AIN2 offset adjustment control */ +#define ADIS16220_AIN2_NULL 0x06 +/* Output, power supply during capture */ +#define ADIS16220_CAPT_SUPPLY 0x0A +/* Output, temperature during capture */ +#define ADIS16220_CAPT_TEMP 0x0C +/* Output, peak acceleration during capture */ +#define ADIS16220_CAPT_PEAKA 0x0E +/* Output, peak AIN1 level during capture */ +#define ADIS16220_CAPT_PEAK1 0x10 +/* Output, peak AIN2 level during capture */ +#define ADIS16220_CAPT_PEAK2 0x12 +/* Output, capture buffer for acceleration */ +#define ADIS16220_CAPT_BUFA 0x14 +/* Output, capture buffer for AIN1 */ +#define ADIS16220_CAPT_BUF1 0x16 +/* Output, capture buffer for AIN2 */ +#define ADIS16220_CAPT_BUF2 0x18 +/* Control, capture buffer address pointer */ +#define ADIS16220_CAPT_PNTR 0x1A +/* Control, capture control register */ +#define ADIS16220_CAPT_CTRL 0x1C +/* Control, capture period (automatic mode) */ +#define ADIS16220_CAPT_PRD 0x1E +/* Control, Alarm A, acceleration peak threshold */ +#define ADIS16220_ALM_MAGA 0x20 +/* Control, Alarm 1, AIN1 peak threshold */ +#define ADIS16220_ALM_MAG1 0x22 +/* Control, Alarm 2, AIN2 peak threshold */ +#define ADIS16220_ALM_MAG2 0x24 +/* Control, Alarm S, peak threshold */ +#define ADIS16220_ALM_MAGS 0x26 +/* Control, alarm configuration register */ +#define ADIS16220_ALM_CTRL 0x28 +/* Control, general I/O configuration */ +#define ADIS16220_GPIO_CTRL 0x32 +/* Control, self-test control, AIN configuration */ +#define ADIS16220_MSC_CTRL 0x34 +/* Control, digital I/O configuration */ +#define ADIS16220_DIO_CTRL 0x36 +/* Control, filter configuration */ +#define ADIS16220_AVG_CNT 0x38 +/* Status, system status */ +#define ADIS16220_DIAG_STAT 0x3C +/* Control, system commands */ +#define ADIS16220_GLOB_CMD 0x3E +/* Status, self-test response */ +#define ADIS16220_ST_DELTA 0x40 +/* Lot Identification Code 1 */ +#define ADIS16220_LOT_ID1 0x52 +/* Lot Identification Code 2 */ +#define ADIS16220_LOT_ID2 0x54 +/* Product identifier; convert to decimal = 16220 */ +#define ADIS16220_PROD_ID 0x56 +/* Serial number */ +#define ADIS16220_SERIAL_NUM 0x58 + +#define ADIS16220_CAPTURE_SIZE 2048 + +/* MSC_CTRL */ +#define ADIS16220_MSC_CTRL_SELF_TEST_EN (1 << 8) +#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN1 (1 << 1) +#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN2 (1 << 0) + +/* DIO_CTRL */ +#define ADIS16220_MSC_CTRL_DIO2_BUSY_IND (3<<4) +#define ADIS16220_MSC_CTRL_DIO1_BUSY_IND (3<<2) +#define ADIS16220_MSC_CTRL_DIO2_ACT_HIGH (1<<1) +#define ADIS16220_MSC_CTRL_DIO1_ACT_HIGH (1<<0) + +/* DIAG_STAT */ +/* AIN2 sample > ALM_MAG2 */ +#define ADIS16220_DIAG_STAT_ALM_MAG2 (1<<14) +/* AIN1 sample > ALM_MAG1 */ +#define ADIS16220_DIAG_STAT_ALM_MAG1 (1<<13) +/* Acceleration sample > ALM_MAGA */ +#define ADIS16220_DIAG_STAT_ALM_MAGA (1<<12) +/* Error condition programmed into ALM_MAGS[11:0] and ALM_CTRL[5:4] is true */ +#define ADIS16220_DIAG_STAT_ALM_MAGS (1<<11) +/* |Peak value in AIN2 data capture| > ALM_MAG2 */ +#define ADIS16220_DIAG_STAT_PEAK_AIN2 (1<<10) +/* |Peak value in AIN1 data capture| > ALM_MAG1 */ +#define ADIS16220_DIAG_STAT_PEAK_AIN1 (1<<9) +/* |Peak value in acceleration data capture| > ALM_MAGA */ +#define ADIS16220_DIAG_STAT_PEAK_ACCEL (1<<8) +/* Data ready, capture complete */ +#define ADIS16220_DIAG_STAT_DATA_RDY (1<<7) +#define ADIS16220_DIAG_STAT_FLASH_CHK (1<<6) +#define ADIS16220_DIAG_STAT_SELF_TEST (1<<5) +/* Capture period violation/interruption */ +#define ADIS16220_DIAG_STAT_VIOLATION (1<<4) +/* SPI communications failure */ +#define ADIS16220_DIAG_STAT_SPI_FAIL (1<<3) +/* Flash update failure */ +#define ADIS16220_DIAG_STAT_FLASH_UPT (1<<2) +/* Power supply above 3.625 V */ +#define ADIS16220_DIAG_STAT_POWER_HIGH (1<<1) +/* Power supply below 3.15 V */ +#define ADIS16220_DIAG_STAT_POWER_LOW (1<<0) + +/* GLOB_CMD */ +#define ADIS16220_GLOB_CMD_SW_RESET (1<<7) +#define ADIS16220_GLOB_CMD_SELF_TEST (1<<2) +#define ADIS16220_GLOB_CMD_PWR_DOWN (1<<1) + +#define ADIS16220_MAX_TX 2048 +#define ADIS16220_MAX_RX 2048 + +#define ADIS16220_SPI_BURST (u32)(1000 * 1000) +#define ADIS16220_SPI_FAST (u32)(2000 * 1000) + +/** + * struct adis16220_state - device instance specific data + * @us: actual spi_device + * @work_trigger_to_ring: bh for triggered event handling + * @work_cont_thresh: CLEAN + * @inter: used to check if new interrupt has been triggered + * @last_timestamp: passing timestamp from th to bh of interrupt handler + * @indio_dev: industrial I/O device structure + * @trig: data ready trigger registered with iio + * @tx: transmit buffer + * @rx: recieve buffer + * @buf_lock: mutex to protect tx and rx + **/ +struct adis16220_state { + struct spi_device *us; + struct iio_dev *indio_dev; + u8 *tx; + u8 *rx; + struct mutex buf_lock; +}; + +#endif /* SPI_ADIS16220_H_ */ |