- 根目录:
- drivers
- staging
- iio
- accel
- adis16240.h
#ifndef SPI_ADIS16240_H_
#define SPI_ADIS16240_H_
#define ADIS16240_STARTUP_DELAY 220 /* ms */
#define ADIS16240_READ_REG(a) a
#define ADIS16240_WRITE_REG(a) ((a) | 0x80)
/* Flash memory write count */
#define ADIS16240_FLASH_CNT 0x00
/* Output, power supply */
#define ADIS16240_SUPPLY_OUT 0x02
/* Output, x-axis accelerometer */
#define ADIS16240_XACCL_OUT 0x04
/* Output, y-axis accelerometer */
#define ADIS16240_YACCL_OUT 0x06
/* Output, z-axis accelerometer */
#define ADIS16240_ZACCL_OUT 0x08
/* Output, auxiliary ADC input */
#define ADIS16240_AUX_ADC 0x0A
/* Output, temperature */
#define ADIS16240_TEMP_OUT 0x0C
/* Output, x-axis acceleration peak */
#define ADIS16240_XPEAK_OUT 0x0E
/* Output, y-axis acceleration peak */
#define ADIS16240_YPEAK_OUT 0x10
/* Output, z-axis acceleration peak */
#define ADIS16240_ZPEAK_OUT 0x12
/* Output, sum-of-squares acceleration peak */
#define ADIS16240_XYZPEAK_OUT 0x14
/* Output, Capture Buffer 1, X and Y acceleration */
#define ADIS16240_CAPT_BUF1 0x16
/* Output, Capture Buffer 2, Z acceleration */
#define ADIS16240_CAPT_BUF2 0x18
/* Diagnostic, error flags */
#define ADIS16240_DIAG_STAT 0x1A
/* Diagnostic, event counter */
#define ADIS16240_EVNT_CNTR 0x1C
/* Diagnostic, check sum value from firmware test */
#define ADIS16240_CHK_SUM 0x1E
/* Calibration, x-axis acceleration offset adjustment */
#define ADIS16240_XACCL_OFF 0x20
/* Calibration, y-axis acceleration offset adjustment */
#define ADIS16240_YACCL_OFF 0x22
/* Calibration, z-axis acceleration offset adjustment */
#define ADIS16240_ZACCL_OFF 0x24
/* Clock, hour and minute */
#define ADIS16240_CLK_TIME 0x2E
/* Clock, month and day */
#define ADIS16240_CLK_DATE 0x30
/* Clock, year */
#define ADIS16240_CLK_YEAR 0x32
/* Wake-up setting, hour and minute */
#define ADIS16240_WAKE_TIME 0x34
/* Wake-up setting, month and day */
#define ADIS16240_WAKE_DATE 0x36
/* Alarm 1 amplitude threshold */
#define ADIS16240_ALM_MAG1 0x38
/* Alarm 2 amplitude threshold */
#define ADIS16240_ALM_MAG2 0x3A
/* Alarm control */
#define ADIS16240_ALM_CTRL 0x3C
/* Capture, external trigger control */
#define ADIS16240_XTRIG_CTRL 0x3E
/* Capture, address pointer */
#define ADIS16240_CAPT_PNTR 0x40
/* Capture, configuration and control */
#define ADIS16240_CAPT_CTRL 0x42
/* General-purpose digital input/output control */
#define ADIS16240_GPIO_CTRL 0x44
/* Miscellaneous control */
#define ADIS16240_MSC_CTRL 0x46
/* Internal sample period (rate) control */
#define ADIS16240_SMPL_PRD 0x48
/* System command */
#define ADIS16240_GLOB_CMD 0x4A
#define ADIS16240_OUTPUTS 6
/* MSC_CTRL */
/* Enables sum-of-squares output (XYZPEAK_OUT) */
#define ADIS16240_MSC_CTRL_XYZPEAK_OUT_EN (1 << 15)
/* Enables peak tracking output (XPEAK_OUT, YPEAK_OUT, and ZPEAK_OUT) */
#define ADIS16240_MSC_CTRL_X_Y_ZPEAK_OUT_EN (1 << 14)
/* Self-test enable: 1 = apply electrostatic force, 0 = disabled */
#define ADIS16240_MSC_CTRL_SELF_TEST_EN (1 << 8)
/* Data-ready enable: 1 = enabled, 0 = disabled */
#define ADIS16240_MSC_CTRL_DATA_RDY_EN (1 << 2)
/* Data-ready polarity: 1 = active high, 0 = active low */
#define ADIS16240_MSC_CTRL_ACTIVE_HIGH (1 << 1)
/* Data-ready line selection: 1 = DIO2, 0 = DIO1 */
#define ADIS16240_MSC_CTRL_DATA_RDY_DIO2 (1 << 0)
/* DIAG_STAT */
/* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
#define ADIS16240_DIAG_STAT_ALARM2 (1<<9)
/* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
#define ADIS16240_DIAG_STAT_ALARM1 (1<<8)
/* Capture buffer full: 1 = capture buffer is full */
#define ADIS16240_DIAG_STAT_CPT_BUF_FUL (1<<7)
/* Flash test, checksum flag: 1 = mismatch, 0 = match */
#define ADIS16240_DIAG_STAT_CHKSUM (1<<6)
/* Power-on, self-test flag: 1 = failure, 0 = pass */
#define ADIS16240_DIAG_STAT_PWRON_FAIL (1<<5)
/* Power-on self-test: 1 = in-progress, 0 = complete */
#define ADIS16240_DIAG_STAT_PWRON_BUSY (1<<4)
/* SPI communications failure */
#define ADIS16240_DIAG_STAT_SPI_FAIL (1<<3)
/* Flash update failure */
#define ADIS16240_DIAG_STAT_FLASH_UPT (1<<2)
/* Power supply above 3.625 V */
#define ADIS16240_DIAG_STAT_POWER_HIGH (1<<1)
/* Power supply below 3.15 V */
#define ADIS16240_DIAG_STAT_POWER_LOW (1<<0)
/* GLOB_CMD */
#define ADIS16240_GLOB_CMD_RESUME (1<<8)
#define ADIS16240_GLOB_CMD_SW_RESET (1<<7)
#define ADIS16240_GLOB_CMD_STANDBY (1<<2)
#define ADIS16240_ERROR_ACTIVE (1<<14)
#define ADIS16240_MAX_TX 24
#define ADIS16240_MAX_RX 24
/**
* struct adis16240_state - device instance specific data
* @us: actual spi_device
* @indio_dev: industrial I/O device structure
* @trig: data ready trigger registered with iio
* @tx: transmit buffer
* @rx: receive buffer
* @buf_lock: mutex to protect tx and rx
**/
struct adis16240_state {
struct spi_device *us;
struct iio_dev *indio_dev;
struct iio_trigger *trig;
u8 *tx;
u8 *rx;
struct mutex buf_lock;
};
int adis16240_set_irq(struct iio_dev *indio_dev, bool enable);
#ifdef CONFIG_IIO_RING_BUFFER
/* At the moment triggers are only used for ring buffer
* filling. This may change!
*/
#define ADIS16240_SCAN_SUPPLY 0
#define ADIS16240_SCAN_ACC_X 1
#define ADIS16240_SCAN_ACC_Y 2
#define ADIS16240_SCAN_ACC_Z 3
#define ADIS16240_SCAN_AUX_ADC 4
#define ADIS16240_SCAN_TEMP 5
void adis16240_remove_trigger(struct iio_dev *indio_dev);
int adis16240_probe_trigger(struct iio_dev *indio_dev);
ssize_t adis16240_read_data_from_ring(struct device *dev,
struct device_attribute *attr,
char *buf);
int adis16240_configure_ring(struct iio_dev *indio_dev);
void adis16240_unconfigure_ring(struct iio_dev *indio_dev);
#else /* CONFIG_IIO_RING_BUFFER */
static inline void adis16240_remove_trigger(struct iio_dev *indio_dev)
{
}
static inline int adis16240_probe_trigger(struct iio_dev *indio_dev)
{
return 0;
}
static inline ssize_t
adis16240_read_data_from_ring(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return 0;
}
static int adis16240_configure_ring(struct iio_dev *indio_dev)
{
return 0;
}
static inline void adis16240_unconfigure_ring(struct iio_dev *indio_dev)
{
}
#endif /* CONFIG_IIO_RING_BUFFER */
#endif /* SPI_ADIS16240_H_ */