fe34604844
Unusual element is addition of 'negate' and 'axis' platform data to ensure we support all the functionality of the adis16255 driver currently in staging. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Matthias Brugger <mensch0815@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
164 lines
5.4 KiB
C
164 lines
5.4 KiB
C
#ifndef SPI_ADIS16260_H_
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#define SPI_ADIS16260_H_
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#include "adis16260_platform_data.h"
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#define ADIS16260_STARTUP_DELAY 220 /* ms */
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#define ADIS16260_READ_REG(a) a
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#define ADIS16260_WRITE_REG(a) ((a) | 0x80)
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#define ADIS16260_FLASH_CNT 0x00 /* Flash memory write count */
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#define ADIS16260_SUPPLY_OUT 0x02 /* Power supply measurement */
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#define ADIS16260_GYRO_OUT 0x04 /* X-axis gyroscope output */
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#define ADIS16260_AUX_ADC 0x0A /* analog input channel measurement */
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#define ADIS16260_TEMP_OUT 0x0C /* internal temperature measurement */
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#define ADIS16260_ANGL_OUT 0x0E /* angle displacement */
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#define ADIS16260_GYRO_OFF 0x14 /* Calibration, offset/bias adjustment */
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#define ADIS16260_GYRO_SCALE 0x16 /* Calibration, scale adjustment */
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#define ADIS16260_ALM_MAG1 0x20 /* Alarm 1 magnitude/polarity setting */
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#define ADIS16260_ALM_MAG2 0x22 /* Alarm 2 magnitude/polarity setting */
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#define ADIS16260_ALM_SMPL1 0x24 /* Alarm 1 dynamic rate of change setting */
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#define ADIS16260_ALM_SMPL2 0x26 /* Alarm 2 dynamic rate of change setting */
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#define ADIS16260_ALM_CTRL 0x28 /* Alarm control */
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#define ADIS16260_AUX_DAC 0x30 /* Auxiliary DAC data */
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#define ADIS16260_GPIO_CTRL 0x32 /* Control, digital I/O line */
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#define ADIS16260_MSC_CTRL 0x34 /* Control, data ready, self-test settings */
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#define ADIS16260_SMPL_PRD 0x36 /* Control, internal sample rate */
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#define ADIS16260_SENS_AVG 0x38 /* Control, dynamic range, filtering */
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#define ADIS16260_SLP_CNT 0x3A /* Control, sleep mode initiation */
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#define ADIS16260_DIAG_STAT 0x3C /* Diagnostic, error flags */
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#define ADIS16260_GLOB_CMD 0x3E /* Control, global commands */
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#define ADIS16260_LOT_ID1 0x52 /* Lot Identification Code 1 */
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#define ADIS16260_LOT_ID2 0x54 /* Lot Identification Code 2 */
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#define ADIS16260_PROD_ID 0x56 /* Product identifier;
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* convert to decimal = 16,265/16,260 */
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#define ADIS16260_SERIAL_NUM 0x58 /* Serial number */
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#define ADIS16260_OUTPUTS 5
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#define ADIS16260_ERROR_ACTIVE (1<<14)
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#define ADIS16260_NEW_DATA (1<<15)
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/* MSC_CTRL */
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#define ADIS16260_MSC_CTRL_MEM_TEST (1<<11)
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/* Internal self-test enable */
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#define ADIS16260_MSC_CTRL_INT_SELF_TEST (1<<10)
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#define ADIS16260_MSC_CTRL_NEG_SELF_TEST (1<<9)
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#define ADIS16260_MSC_CTRL_POS_SELF_TEST (1<<8)
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#define ADIS16260_MSC_CTRL_DATA_RDY_EN (1<<2)
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#define ADIS16260_MSC_CTRL_DATA_RDY_POL_HIGH (1<<1)
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#define ADIS16260_MSC_CTRL_DATA_RDY_DIO2 (1<<0)
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/* SMPL_PRD */
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/* Time base (tB): 0 = 1.953 ms, 1 = 60.54 ms */
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#define ADIS16260_SMPL_PRD_TIME_BASE (1<<7)
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#define ADIS16260_SMPL_PRD_DIV_MASK 0x7F
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/* SLP_CNT */
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#define ADIS16260_SLP_CNT_POWER_OFF 0x80
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/* DIAG_STAT */
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#define ADIS16260_DIAG_STAT_ALARM2 (1<<9)
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#define ADIS16260_DIAG_STAT_ALARM1 (1<<8)
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#define ADIS16260_DIAG_STAT_FLASH_CHK (1<<6)
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#define ADIS16260_DIAG_STAT_SELF_TEST (1<<5)
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#define ADIS16260_DIAG_STAT_OVERFLOW (1<<4)
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#define ADIS16260_DIAG_STAT_SPI_FAIL (1<<3)
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#define ADIS16260_DIAG_STAT_FLASH_UPT (1<<2)
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#define ADIS16260_DIAG_STAT_POWER_HIGH (1<<1)
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#define ADIS16260_DIAG_STAT_POWER_LOW (1<<0)
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/* GLOB_CMD */
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#define ADIS16260_GLOB_CMD_SW_RESET (1<<7)
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#define ADIS16260_GLOB_CMD_FLASH_UPD (1<<3)
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#define ADIS16260_GLOB_CMD_DAC_LATCH (1<<2)
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#define ADIS16260_GLOB_CMD_FAC_CALIB (1<<1)
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#define ADIS16260_GLOB_CMD_AUTO_NULL (1<<0)
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#define ADIS16260_MAX_TX 24
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#define ADIS16260_MAX_RX 24
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#define ADIS16260_SPI_SLOW (u32)(300 * 1000)
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#define ADIS16260_SPI_BURST (u32)(1000 * 1000)
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#define ADIS16260_SPI_FAST (u32)(2000 * 1000)
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/**
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* struct adis16260_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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* @negate: negate the scale parameter
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**/
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struct adis16260_state {
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struct spi_device *us;
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struct work_struct work_trigger_to_ring;
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s64 last_timestamp;
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struct iio_dev *indio_dev;
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struct iio_trigger *trig;
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u8 *tx;
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u8 *rx;
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struct mutex buf_lock;
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unsigned negate:1;
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};
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int adis16260_set_irq(struct device *dev, bool enable);
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#ifdef CONFIG_IIO_RING_BUFFER
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/* At the moment triggers are only used for ring buffer
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* filling. This may change!
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*/
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#define ADIS16260_SCAN_SUPPLY 0
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#define ADIS16260_SCAN_GYRO 1
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#define ADIS16260_SCAN_AUX_ADC 2
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#define ADIS16260_SCAN_TEMP 3
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#define ADIS16260_SCAN_ANGL 4
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void adis16260_remove_trigger(struct iio_dev *indio_dev);
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int adis16260_probe_trigger(struct iio_dev *indio_dev);
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ssize_t adis16260_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 adis16260_configure_ring(struct iio_dev *indio_dev);
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void adis16260_unconfigure_ring(struct iio_dev *indio_dev);
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#else /* CONFIG_IIO_RING_BUFFER */
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static inline void adis16260_remove_trigger(struct iio_dev *indio_dev)
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{
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}
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static inline int adis16260_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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adis16260_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 adis16260_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 adis16260_unconfigure_ring(struct iio_dev *indio_dev)
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{
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}
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#endif /* CONFIG_IIO_RING_BUFFER */
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#endif /* SPI_ADIS16260_H_ */
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