1980e4ac3a
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
147 lines
5.1 KiB
C
147 lines
5.1 KiB
C
#ifndef SPI_ADIS16220_H_
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#define SPI_ADIS16220_H_
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#define ADIS16220_STARTUP_DELAY 220 /* ms */
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#define ADIS16220_READ_REG(a) a
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#define ADIS16220_WRITE_REG(a) ((a) | 0x80)
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/* Flash memory write count */
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#define ADIS16220_FLASH_CNT 0x00
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/* Control, acceleration offset adjustment control */
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#define ADIS16220_ACCL_NULL 0x02
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/* Control, AIN1 offset adjustment control */
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#define ADIS16220_AIN1_NULL 0x04
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/* Control, AIN2 offset adjustment control */
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#define ADIS16220_AIN2_NULL 0x06
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/* Output, power supply during capture */
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#define ADIS16220_CAPT_SUPPLY 0x0A
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/* Output, temperature during capture */
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#define ADIS16220_CAPT_TEMP 0x0C
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/* Output, peak acceleration during capture */
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#define ADIS16220_CAPT_PEAKA 0x0E
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/* Output, peak AIN1 level during capture */
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#define ADIS16220_CAPT_PEAK1 0x10
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/* Output, peak AIN2 level during capture */
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#define ADIS16220_CAPT_PEAK2 0x12
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/* Output, capture buffer for acceleration */
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#define ADIS16220_CAPT_BUFA 0x14
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/* Output, capture buffer for AIN1 */
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#define ADIS16220_CAPT_BUF1 0x16
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/* Output, capture buffer for AIN2 */
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#define ADIS16220_CAPT_BUF2 0x18
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/* Control, capture buffer address pointer */
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#define ADIS16220_CAPT_PNTR 0x1A
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/* Control, capture control register */
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#define ADIS16220_CAPT_CTRL 0x1C
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/* Control, capture period (automatic mode) */
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#define ADIS16220_CAPT_PRD 0x1E
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/* Control, Alarm A, acceleration peak threshold */
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#define ADIS16220_ALM_MAGA 0x20
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/* Control, Alarm 1, AIN1 peak threshold */
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#define ADIS16220_ALM_MAG1 0x22
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/* Control, Alarm 2, AIN2 peak threshold */
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#define ADIS16220_ALM_MAG2 0x24
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/* Control, Alarm S, peak threshold */
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#define ADIS16220_ALM_MAGS 0x26
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/* Control, alarm configuration register */
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#define ADIS16220_ALM_CTRL 0x28
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/* Control, general I/O configuration */
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#define ADIS16220_GPIO_CTRL 0x32
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/* Control, self-test control, AIN configuration */
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#define ADIS16220_MSC_CTRL 0x34
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/* Control, digital I/O configuration */
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#define ADIS16220_DIO_CTRL 0x36
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/* Control, filter configuration */
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#define ADIS16220_AVG_CNT 0x38
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/* Status, system status */
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#define ADIS16220_DIAG_STAT 0x3C
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/* Control, system commands */
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#define ADIS16220_GLOB_CMD 0x3E
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/* Status, self-test response */
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#define ADIS16220_ST_DELTA 0x40
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/* Lot Identification Code 1 */
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#define ADIS16220_LOT_ID1 0x52
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/* Lot Identification Code 2 */
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#define ADIS16220_LOT_ID2 0x54
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/* Product identifier; convert to decimal = 16220 */
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#define ADIS16220_PROD_ID 0x56
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/* Serial number */
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#define ADIS16220_SERIAL_NUM 0x58
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#define ADIS16220_CAPTURE_SIZE 2048
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/* MSC_CTRL */
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#define ADIS16220_MSC_CTRL_SELF_TEST_EN (1 << 8)
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#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN1 (1 << 1)
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#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN2 (1 << 0)
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/* DIO_CTRL */
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#define ADIS16220_MSC_CTRL_DIO2_BUSY_IND (3<<4)
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#define ADIS16220_MSC_CTRL_DIO1_BUSY_IND (3<<2)
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#define ADIS16220_MSC_CTRL_DIO2_ACT_HIGH (1<<1)
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#define ADIS16220_MSC_CTRL_DIO1_ACT_HIGH (1<<0)
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/* DIAG_STAT */
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/* AIN2 sample > ALM_MAG2 */
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#define ADIS16220_DIAG_STAT_ALM_MAG2 (1<<14)
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/* AIN1 sample > ALM_MAG1 */
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#define ADIS16220_DIAG_STAT_ALM_MAG1 (1<<13)
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/* Acceleration sample > ALM_MAGA */
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#define ADIS16220_DIAG_STAT_ALM_MAGA (1<<12)
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/* Error condition programmed into ALM_MAGS[11:0] and ALM_CTRL[5:4] is true */
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#define ADIS16220_DIAG_STAT_ALM_MAGS (1<<11)
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/* |Peak value in AIN2 data capture| > ALM_MAG2 */
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#define ADIS16220_DIAG_STAT_PEAK_AIN2 (1<<10)
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/* |Peak value in AIN1 data capture| > ALM_MAG1 */
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#define ADIS16220_DIAG_STAT_PEAK_AIN1 (1<<9)
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/* |Peak value in acceleration data capture| > ALM_MAGA */
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#define ADIS16220_DIAG_STAT_PEAK_ACCEL (1<<8)
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/* Data ready, capture complete */
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#define ADIS16220_DIAG_STAT_DATA_RDY (1<<7)
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#define ADIS16220_DIAG_STAT_FLASH_CHK (1<<6)
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#define ADIS16220_DIAG_STAT_SELF_TEST (1<<5)
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/* Capture period violation/interruption */
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#define ADIS16220_DIAG_STAT_VIOLATION (1<<4)
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/* SPI communications failure */
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#define ADIS16220_DIAG_STAT_SPI_FAIL (1<<3)
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/* Flash update failure */
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#define ADIS16220_DIAG_STAT_FLASH_UPT (1<<2)
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/* Power supply above 3.625 V */
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#define ADIS16220_DIAG_STAT_POWER_HIGH (1<<1)
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/* Power supply below 3.15 V */
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#define ADIS16220_DIAG_STAT_POWER_LOW (1<<0)
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/* GLOB_CMD */
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#define ADIS16220_GLOB_CMD_SW_RESET (1<<7)
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#define ADIS16220_GLOB_CMD_SELF_TEST (1<<2)
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#define ADIS16220_GLOB_CMD_PWR_DOWN (1<<1)
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#define ADIS16220_MAX_TX 2048
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#define ADIS16220_MAX_RX 2048
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#define ADIS16220_SPI_BURST (u32)(1000 * 1000)
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#define ADIS16220_SPI_FAST (u32)(2000 * 1000)
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/**
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* struct adis16220_state - device instance specific data
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* @us: actual spi_device
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* @work_trigger_to_ring: bh for triggered event handling
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* @inter: used to check if new interrupt has been triggered
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* @last_timestamp: passing timestamp from th to bh of interrupt handler
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* @indio_dev: industrial I/O device structure
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* @trig: data ready trigger registered with iio
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* @tx: transmit buffer
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* @rx: recieve buffer
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* @buf_lock: mutex to protect tx and rx
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**/
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struct adis16220_state {
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struct spi_device *us;
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struct iio_dev *indio_dev;
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u8 *tx;
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u8 *rx;
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struct mutex buf_lock;
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};
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#endif /* SPI_ADIS16220_H_ */
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