drivers/staging/iio/gyro/adis16260.h

   1 #ifndef SPI_ADIS16260_H_
   2 #define SPI_ADIS16260_H_
   3 #include "adis16260_platform_data.h"
   4
   5 #define ADIS16260_STARTUP_DELAY 220 /* ms */
   6
   7 #define ADIS16260_READ_REG(a)    a
   8 #define ADIS16260_WRITE_REG(a) ((a) | 0x80)
   9
  10 #define ADIS16260_FLASH_CNT  0x00 /* Flash memory write count */
  11 #define ADIS16260_SUPPLY_OUT 0x02 /* Power supply measurement */
  12 #define ADIS16260_GYRO_OUT   0x04 /* X-axis gyroscope output */
  13 #define ADIS16260_AUX_ADC    0x0A /* analog input channel measurement */
  14 #define ADIS16260_TEMP_OUT   0x0C /* internal temperature measurement */
  15 #define ADIS16260_ANGL_OUT   0x0E /* angle displacement */
  16 #define ADIS16260_GYRO_OFF   0x14 /* Calibration, offset/bias adjustment */
  17 #define ADIS16260_GYRO_SCALE 0x16 /* Calibration, scale adjustment */
  18 #define ADIS16260_ALM_MAG1   0x20 /* Alarm 1 magnitude/polarity setting */
  19 #define ADIS16260_ALM_MAG2   0x22 /* Alarm 2 magnitude/polarity setting */
  20 #define ADIS16260_ALM_SMPL1  0x24 /* Alarm 1 dynamic rate of change setting */
  21 #define ADIS16260_ALM_SMPL2  0x26 /* Alarm 2 dynamic rate of change setting */
  22 #define ADIS16260_ALM_CTRL   0x28 /* Alarm control */
  23 #define ADIS16260_AUX_DAC    0x30 /* Auxiliary DAC data */
  24 #define ADIS16260_GPIO_CTRL  0x32 /* Control, digital I/O line */
  25 #define ADIS16260_MSC_CTRL   0x34 /* Control, data ready, self-test settings */
  26 #define ADIS16260_SMPL_PRD   0x36 /* Control, internal sample rate */
  27 #define ADIS16260_SENS_AVG   0x38 /* Control, dynamic range, filtering */
  28 #define ADIS16260_SLP_CNT    0x3A /* Control, sleep mode initiation */
  29 #define ADIS16260_DIAG_STAT  0x3C /* Diagnostic, error flags */
  30 #define ADIS16260_GLOB_CMD   0x3E /* Control, global commands */
  31 #define ADIS16260_LOT_ID1    0x52 /* Lot Identification Code 1 */
  32 #define ADIS16260_LOT_ID2    0x54 /* Lot Identification Code 2 */
  33 #define ADIS16260_PROD_ID    0x56 /* Product identifier;
  34                                    * convert to decimal = 16,265/16,260 */
  35 #define ADIS16260_SERIAL_NUM 0x58 /* Serial number */
  36
  37 #define ADIS16260_OUTPUTS    5
  38
  39 #define ADIS16260_ERROR_ACTIVE                  (1<<14)
  40 #define ADIS16260_NEW_DATA                      (1<<15)
  41
  42 /* MSC_CTRL */
  43 #define ADIS16260_MSC_CTRL_MEM_TEST             (1<<11)
  44 /* Internal self-test enable */
  45 #define ADIS16260_MSC_CTRL_INT_SELF_TEST        (1<<10)
  46 #define ADIS16260_MSC_CTRL_NEG_SELF_TEST        (1<<9)
  47 #define ADIS16260_MSC_CTRL_POS_SELF_TEST        (1<<8)
  48 #define ADIS16260_MSC_CTRL_DATA_RDY_EN          (1<<2)
  49 #define ADIS16260_MSC_CTRL_DATA_RDY_POL_HIGH    (1<<1)
  50 #define ADIS16260_MSC_CTRL_DATA_RDY_DIO2        (1<<0)
  51
  52 /* SMPL_PRD */
  53 /* Time base (tB): 0 = 1.953 ms, 1 = 60.54 ms */
  54 #define ADIS16260_SMPL_PRD_TIME_BASE    (1<<7)
  55 #define ADIS16260_SMPL_PRD_DIV_MASK     0x7F
  56
  57 /* SLP_CNT */
  58 #define ADIS16260_SLP_CNT_POWER_OFF     0x80
  59
  60 /* DIAG_STAT */
  61 #define ADIS16260_DIAG_STAT_ALARM2      (1<<9)
  62 #define ADIS16260_DIAG_STAT_ALARM1      (1<<8)
  63 #define ADIS16260_DIAG_STAT_FLASH_CHK   (1<<6)
  64 #define ADIS16260_DIAG_STAT_SELF_TEST   (1<<5)
  65 #define ADIS16260_DIAG_STAT_OVERFLOW    (1<<4)
  66 #define ADIS16260_DIAG_STAT_SPI_FAIL    (1<<3)
  67 #define ADIS16260_DIAG_STAT_FLASH_UPT   (1<<2)
  68 #define ADIS16260_DIAG_STAT_POWER_HIGH  (1<<1)
  69 #define ADIS16260_DIAG_STAT_POWER_LOW   (1<<0)
  70
  71 /* GLOB_CMD */
  72 #define ADIS16260_GLOB_CMD_SW_RESET     (1<<7)
  73 #define ADIS16260_GLOB_CMD_FLASH_UPD    (1<<3)
  74 #define ADIS16260_GLOB_CMD_DAC_LATCH    (1<<2)
  75 #define ADIS16260_GLOB_CMD_FAC_CALIB    (1<<1)
  76 #define ADIS16260_GLOB_CMD_AUTO_NULL    (1<<0)
  77
  78 #define ADIS16260_MAX_TX 24
  79 #define ADIS16260_MAX_RX 24
  80
  81 #define ADIS16260_SPI_SLOW      (u32)(300 * 1000)
  82 #define ADIS16260_SPI_BURST     (u32)(1000 * 1000)
  83 #define ADIS16260_SPI_FAST      (u32)(2000 * 1000)
  84
  85 /**
  86  * struct adis16260_state - device instance specific data
  87  * @us:                 actual spi_device
  88  * @trig:               data ready trigger registered with iio
  89  * @buf_lock:           mutex to protect tx and rx
  90  * @negate:             negate the scale parameter
  91  * @tx:                 transmit buffer
  92  * @rx:                 receive buffer
  93  **/
  94 struct adis16260_state {
  95         struct spi_device       *us;
  96         struct iio_trigger      *trig;
  97         struct mutex            buf_lock;
  98         unsigned                negate:1;
  99         u8                      tx[ADIS16260_MAX_TX] ____cacheline_aligned;
 100         u8                      rx[ADIS16260_MAX_RX];
 101 };
 102
 103 int adis16260_set_irq(struct iio_dev *indio_dev, bool enable);
 104
 105 /* At the moment triggers are only used for ring buffer
 106  * filling. This may change!
 107  */
 108
 109 #define ADIS16260_SCAN_SUPPLY   0
 110 #define ADIS16260_SCAN_GYRO     1
 111 #define ADIS16260_SCAN_AUX_ADC  2
 112 #define ADIS16260_SCAN_TEMP     3
 113 #define ADIS16260_SCAN_ANGL     4
 114
 115 #ifdef CONFIG_IIO_RING_BUFFER
 116 void adis16260_remove_trigger(struct iio_dev *indio_dev);
 117 int adis16260_probe_trigger(struct iio_dev *indio_dev);
 118
 119 ssize_t adis16260_read_data_from_ring(struct device *dev,
 120                                       struct device_attribute *attr,
 121                                       char *buf);
 122
 123
 124 int adis16260_configure_ring(struct iio_dev *indio_dev);
 125 void adis16260_unconfigure_ring(struct iio_dev *indio_dev);
 126
 127 #else /* CONFIG_IIO_RING_BUFFER */
 128
 129 static inline void adis16260_remove_trigger(struct iio_dev *indio_dev)
 130 {
 131 }
 132
 133 static inline int adis16260_probe_trigger(struct iio_dev *indio_dev)
 134 {
 135         return 0;
 136 }
 137
 138 static inline ssize_t
 139 adis16260_read_data_from_ring(struct device *dev,
 140                               struct device_attribute *attr,
 141                               char *buf)
 142 {
 143         return 0;
 144 }
 145
 146 static int adis16260_configure_ring(struct iio_dev *indio_dev)
 147 {
 148         return 0;
 149 }
 150
 151 static inline void adis16260_unconfigure_ring(struct iio_dev *indio_dev)
 152 {
 153 }
 154
 155 #endif /* CONFIG_IIO_RING_BUFFER */
 156 #endif /* SPI_ADIS16260_H_ */