173 lines
5.3 KiB
C
173 lines
5.3 KiB
C
#ifndef SPI_ADIS16209_H_
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#define SPI_ADIS16209_H_
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#define ADIS16209_STARTUP_DELAY 220 /* ms */
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#define ADIS16209_READ_REG(a) a
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#define ADIS16209_WRITE_REG(a) ((a) | 0x80)
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/* Flash memory write count */
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#define ADIS16209_FLASH_CNT 0x00
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/* Output, power supply */
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#define ADIS16209_SUPPLY_OUT 0x02
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/* Output, x-axis accelerometer */
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#define ADIS16209_XACCL_OUT 0x04
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/* Output, y-axis accelerometer */
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#define ADIS16209_YACCL_OUT 0x06
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/* Output, auxiliary ADC input */
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#define ADIS16209_AUX_ADC 0x08
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/* Output, temperature */
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#define ADIS16209_TEMP_OUT 0x0A
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/* Output, x-axis inclination */
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#define ADIS16209_XINCL_OUT 0x0C
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/* Output, y-axis inclination */
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#define ADIS16209_YINCL_OUT 0x0E
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/* Output, +/-180 vertical rotational position */
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#define ADIS16209_ROT_OUT 0x10
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/* Calibration, x-axis acceleration offset null */
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#define ADIS16209_XACCL_NULL 0x12
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/* Calibration, y-axis acceleration offset null */
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#define ADIS16209_YACCL_NULL 0x14
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/* Calibration, x-axis inclination offset null */
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#define ADIS16209_XINCL_NULL 0x16
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/* Calibration, y-axis inclination offset null */
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#define ADIS16209_YINCL_NULL 0x18
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/* Calibration, vertical rotation offset null */
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#define ADIS16209_ROT_NULL 0x1A
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/* Alarm 1 amplitude threshold */
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#define ADIS16209_ALM_MAG1 0x20
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/* Alarm 2 amplitude threshold */
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#define ADIS16209_ALM_MAG2 0x22
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/* Alarm 1, sample period */
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#define ADIS16209_ALM_SMPL1 0x24
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/* Alarm 2, sample period */
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#define ADIS16209_ALM_SMPL2 0x26
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/* Alarm control */
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#define ADIS16209_ALM_CTRL 0x28
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/* Auxiliary DAC data */
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#define ADIS16209_AUX_DAC 0x30
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/* General-purpose digital input/output control */
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#define ADIS16209_GPIO_CTRL 0x32
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/* Miscellaneous control */
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#define ADIS16209_MSC_CTRL 0x34
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/* Internal sample period (rate) control */
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#define ADIS16209_SMPL_PRD 0x36
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/* Operation, filter configuration */
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#define ADIS16209_AVG_CNT 0x38
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/* Operation, sleep mode control */
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#define ADIS16209_SLP_CNT 0x3A
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/* Diagnostics, system status register */
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#define ADIS16209_DIAG_STAT 0x3C
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/* Operation, system command register */
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#define ADIS16209_GLOB_CMD 0x3E
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#define ADIS16209_OUTPUTS 8
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/* MSC_CTRL */
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/* Self-test at power-on: 1 = disabled, 0 = enabled */
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#define ADIS16209_MSC_CTRL_PWRUP_SELF_TEST (1 << 10)
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/* Self-test enable */
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#define ADIS16209_MSC_CTRL_SELF_TEST_EN (1 << 8)
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/* Data-ready enable: 1 = enabled, 0 = disabled */
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#define ADIS16209_MSC_CTRL_DATA_RDY_EN (1 << 2)
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/* Data-ready polarity: 1 = active high, 0 = active low */
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#define ADIS16209_MSC_CTRL_ACTIVE_HIGH (1 << 1)
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/* Data-ready line selection: 1 = DIO2, 0 = DIO1 */
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#define ADIS16209_MSC_CTRL_DATA_RDY_DIO2 (1 << 0)
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/* DIAG_STAT */
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/* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */
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#define ADIS16209_DIAG_STAT_ALARM2 (1<<9)
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/* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */
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#define ADIS16209_DIAG_STAT_ALARM1 (1<<8)
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/* Self-test diagnostic error flag: 1 = error condition, 0 = normal operation */
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#define ADIS16209_DIAG_STAT_SELFTEST_FAIL (1<<5)
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/* SPI communications failure */
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#define ADIS16209_DIAG_STAT_SPI_FAIL (1<<3)
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/* Flash update failure */
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#define ADIS16209_DIAG_STAT_FLASH_UPT (1<<2)
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/* Power supply above 3.625 V */
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#define ADIS16209_DIAG_STAT_POWER_HIGH (1<<1)
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/* Power supply below 3.15 V */
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#define ADIS16209_DIAG_STAT_POWER_LOW (1<<0)
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/* GLOB_CMD */
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#define ADIS16209_GLOB_CMD_SW_RESET (1<<7)
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#define ADIS16209_GLOB_CMD_CLEAR_STAT (1<<4)
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#define ADIS16209_GLOB_CMD_FACTORY_CAL (1<<1)
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#define ADIS16209_MAX_TX 24
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#define ADIS16209_MAX_RX 24
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#define ADIS16209_ERROR_ACTIVE (1<<14)
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/**
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* struct adis16209_state - device instance specific data
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* @us: actual spi_device
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* @trig: data ready trigger registered with iio
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* @tx: transmit buffer
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* @rx: receive buffer
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* @buf_lock: mutex to protect tx and rx
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**/
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struct adis16209_state {
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struct spi_device *us;
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struct iio_trigger *trig;
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struct mutex buf_lock;
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u8 tx[ADIS16209_MAX_TX] ____cacheline_aligned;
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u8 rx[ADIS16209_MAX_RX];
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};
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int adis16209_set_irq(struct iio_dev *indio_dev, bool enable);
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#define ADIS16209_SCAN_SUPPLY 0
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#define ADIS16209_SCAN_ACC_X 1
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#define ADIS16209_SCAN_ACC_Y 2
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#define ADIS16209_SCAN_AUX_ADC 3
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#define ADIS16209_SCAN_TEMP 4
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#define ADIS16209_SCAN_INCLI_X 5
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#define ADIS16209_SCAN_INCLI_Y 6
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#define ADIS16209_SCAN_ROT 7
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#ifdef CONFIG_IIO_BUFFER
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void adis16209_remove_trigger(struct iio_dev *indio_dev);
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int adis16209_probe_trigger(struct iio_dev *indio_dev);
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ssize_t adis16209_read_data_from_ring(struct device *dev,
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struct device_attribute *attr,
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char *buf);
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int adis16209_configure_ring(struct iio_dev *indio_dev);
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void adis16209_unconfigure_ring(struct iio_dev *indio_dev);
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#else /* CONFIG_IIO_BUFFER */
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static inline void adis16209_remove_trigger(struct iio_dev *indio_dev)
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{
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}
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static inline int adis16209_probe_trigger(struct iio_dev *indio_dev)
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{
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return 0;
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}
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static inline ssize_t
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adis16209_read_data_from_ring(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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return 0;
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}
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static int adis16209_configure_ring(struct iio_dev *indio_dev)
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{
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return 0;
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}
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static inline void adis16209_unconfigure_ring(struct iio_dev *indio_dev)
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{
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}
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#endif /* CONFIG_IIO_BUFFER */
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#endif /* SPI_ADIS16209_H_ */
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