release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/staging/iio/imu/adis16350.h

   1 #ifndef SPI_ADIS16350_H_
   2 #define SPI_ADIS16350_H_
   3
   4 #define ADIS16350_STARTUP_DELAY 220 /* ms */
   5
   6 #define ADIS16350_READ_REG(a)    a
   7 #define ADIS16350_WRITE_REG(a) ((a) | 0x80)
   8
   9 #define ADIS16350_FLASH_CNT  0x00 /* Flash memory write count */
  10 #define ADIS16350_SUPPLY_OUT 0x02 /* Power supply measurement */
  11 #define ADIS16350_XGYRO_OUT 0x04 /* X-axis gyroscope output */
  12 #define ADIS16350_YGYRO_OUT 0x06 /* Y-axis gyroscope output */
  13 #define ADIS16350_ZGYRO_OUT 0x08 /* Z-axis gyroscope output */
  14 #define ADIS16350_XACCL_OUT 0x0A /* X-axis accelerometer output */
  15 #define ADIS16350_YACCL_OUT 0x0C /* Y-axis accelerometer output */
  16 #define ADIS16350_ZACCL_OUT 0x0E /* Z-axis accelerometer output */
  17 #define ADIS16350_XTEMP_OUT 0x10 /* X-axis gyroscope temperature measurement */
  18 #define ADIS16350_YTEMP_OUT 0x12 /* Y-axis gyroscope temperature measurement */
  19 #define ADIS16350_ZTEMP_OUT 0x14 /* Z-axis gyroscope temperature measurement */
  20 #define ADIS16350_AUX_ADC   0x16 /* Auxiliary ADC measurement */
  21
  22 /* Calibration parameters */
  23 #define ADIS16350_XGYRO_OFF 0x1A /* X-axis gyroscope bias offset factor */
  24 #define ADIS16350_YGYRO_OFF 0x1C /* Y-axis gyroscope bias offset factor */
  25 #define ADIS16350_ZGYRO_OFF 0x1E /* Z-axis gyroscope bias offset factor */
  26 #define ADIS16350_XACCL_OFF 0x20 /* X-axis acceleration bias offset factor */
  27 #define ADIS16350_YACCL_OFF 0x22 /* Y-axis acceleration bias offset factor */
  28 #define ADIS16350_ZACCL_OFF 0x24 /* Z-axis acceleration bias offset factor */
  29
  30 #define ADIS16350_GPIO_CTRL 0x32 /* Auxiliary digital input/output control */
  31 #define ADIS16350_MSC_CTRL  0x34 /* Miscellaneous control */
  32 #define ADIS16350_SMPL_PRD  0x36 /* Internal sample period (rate) control */
  33 #define ADIS16350_SENS_AVG  0x38 /* Dynamic range and digital filter control */
  34 #define ADIS16350_SLP_CNT   0x3A /* Sleep mode control */
  35 #define ADIS16350_DIAG_STAT 0x3C /* System status */
  36
  37 /* Alarm functions */
  38 #define ADIS16350_GLOB_CMD  0x3E /* System command */
  39 #define ADIS16350_ALM_MAG1  0x26 /* Alarm 1 amplitude threshold */
  40 #define ADIS16350_ALM_MAG2  0x28 /* Alarm 2 amplitude threshold */
  41 #define ADIS16350_ALM_SMPL1 0x2A /* Alarm 1 sample size */
  42 #define ADIS16350_ALM_SMPL2 0x2C /* Alarm 2 sample size */
  43 #define ADIS16350_ALM_CTRL  0x2E /* Alarm control */
  44 #define ADIS16350_AUX_DAC   0x30 /* Auxiliary DAC data */
  45
  46 #define ADIS16350_ERROR_ACTIVE                  (1<<14)
  47 #define ADIS16350_NEW_DATA                      (1<<15)
  48
  49 /* MSC_CTRL */
  50 #define ADIS16350_MSC_CTRL_MEM_TEST             (1<<11)
  51 #define ADIS16350_MSC_CTRL_INT_SELF_TEST        (1<<10)
  52 #define ADIS16350_MSC_CTRL_NEG_SELF_TEST        (1<<9)
  53 #define ADIS16350_MSC_CTRL_POS_SELF_TEST        (1<<8)
  54 #define ADIS16350_MSC_CTRL_GYRO_BIAS            (1<<7)
  55 #define ADIS16350_MSC_CTRL_ACCL_ALIGN           (1<<6)
  56 #define ADIS16350_MSC_CTRL_DATA_RDY_EN          (1<<2)
  57 #define ADIS16350_MSC_CTRL_DATA_RDY_POL_HIGH    (1<<1)
  58 #define ADIS16350_MSC_CTRL_DATA_RDY_DIO2        (1<<0)
  59
  60 /* SMPL_PRD */
  61 #define ADIS16350_SMPL_PRD_TIME_BASE    (1<<7)
  62 #define ADIS16350_SMPL_PRD_DIV_MASK     0x7F
  63
  64 /* DIAG_STAT */
  65 #define ADIS16350_DIAG_STAT_ZACCL_FAIL  (1<<15)
  66 #define ADIS16350_DIAG_STAT_YACCL_FAIL  (1<<14)
  67 #define ADIS16350_DIAG_STAT_XACCL_FAIL  (1<<13)
  68 #define ADIS16350_DIAG_STAT_XGYRO_FAIL  (1<<12)
  69 #define ADIS16350_DIAG_STAT_YGYRO_FAIL  (1<<11)
  70 #define ADIS16350_DIAG_STAT_ZGYRO_FAIL  (1<<10)
  71 #define ADIS16350_DIAG_STAT_ALARM2      (1<<9)
  72 #define ADIS16350_DIAG_STAT_ALARM1      (1<<8)
  73 #define ADIS16350_DIAG_STAT_FLASH_CHK   (1<<6)
  74 #define ADIS16350_DIAG_STAT_SELF_TEST   (1<<5)
  75 #define ADIS16350_DIAG_STAT_OVERFLOW    (1<<4)
  76 #define ADIS16350_DIAG_STAT_SPI_FAIL    (1<<3)
  77 #define ADIS16350_DIAG_STAT_FLASH_UPT   (1<<2)
  78 #define ADIS16350_DIAG_STAT_POWER_HIGH  (1<<1)
  79 #define ADIS16350_DIAG_STAT_POWER_LOW   (1<<0)
  80
  81 /* GLOB_CMD */
  82 #define ADIS16350_GLOB_CMD_SW_RESET     (1<<7)
  83 #define ADIS16350_GLOB_CMD_P_AUTO_NULL  (1<<4)
  84 #define ADIS16350_GLOB_CMD_FLASH_UPD    (1<<3)
  85 #define ADIS16350_GLOB_CMD_DAC_LATCH    (1<<2)
  86 #define ADIS16350_GLOB_CMD_FAC_CALIB    (1<<1)
  87 #define ADIS16350_GLOB_CMD_AUTO_NULL    (1<<0)
  88
  89 /* SLP_CNT */
  90 #define ADIS16350_SLP_CNT_POWER_OFF     (1<<8)
  91
  92 #define ADIS16350_MAX_TX 24
  93 #define ADIS16350_MAX_RX 24
  94
  95 #define ADIS16350_SPI_SLOW      (u32)(300 * 1000)
  96 #define ADIS16350_SPI_BURST     (u32)(1000 * 1000)
  97 #define ADIS16350_SPI_FAST      (u32)(2000 * 1000)
  98
  99 /**
 100  * struct adis16350_state - device instance specific data
 101  * @us:                 actual spi_device
 102  * @work_trigger_to_ring: bh for triggered event handling
 103  * @inter:              used to check if new interrupt has been triggered
 104  * @last_timestamp:     passing timestamp from th to bh of interrupt handler
 105  * @indio_dev:          industrial I/O device structure
 106  * @trig:               data ready trigger registered with iio
 107  * @tx:                 transmit buffer
 108  * @rx:                 recieve buffer
 109  * @buf_lock:           mutex to protect tx and rx
 110  **/
 111 struct adis16350_state {
 112         struct spi_device               *us;
 113         struct work_struct              work_trigger_to_ring;
 114         s64                             last_timestamp;
 115         struct iio_dev                  *indio_dev;
 116         struct iio_trigger              *trig;
 117         u8                              *tx;
 118         u8                              *rx;
 119         struct mutex                    buf_lock;
 120 };
 121
 122 int adis16350_set_irq(struct device *dev, bool enable);
 123
 124 #ifdef CONFIG_IIO_RING_BUFFER
 125
 126 #define ADIS16350_SCAN_SUPPLY   0
 127 #define ADIS16350_SCAN_GYRO_X   1
 128 #define ADIS16350_SCAN_GYRO_Y   2
 129 #define ADIS16350_SCAN_GYRO_Z   3
 130 #define ADIS16350_SCAN_ACC_X    4
 131 #define ADIS16350_SCAN_ACC_Y    5
 132 #define ADIS16350_SCAN_ACC_Z    6
 133 #define ADIS16350_SCAN_TEMP_X   7
 134 #define ADIS16350_SCAN_TEMP_Y   8
 135 #define ADIS16350_SCAN_TEMP_Z   9
 136 #define ADIS16350_SCAN_ADC_0    10
 137
 138 void adis16350_remove_trigger(struct iio_dev *indio_dev);
 139 int adis16350_probe_trigger(struct iio_dev *indio_dev);
 140
 141 ssize_t adis16350_read_data_from_ring(struct device *dev,
 142                                       struct device_attribute *attr,
 143                                       char *buf);
 144
 145
 146 int adis16350_configure_ring(struct iio_dev *indio_dev);
 147 void adis16350_unconfigure_ring(struct iio_dev *indio_dev);
 148
 149 #else /* CONFIG_IIO_RING_BUFFER */
 150
 151 static inline void adis16350_remove_trigger(struct iio_dev *indio_dev)
 152 {
 153 }
 154
 155 static inline int adis16350_probe_trigger(struct iio_dev *indio_dev)
 156 {
 157         return 0;
 158 }
 159
 160 static inline ssize_t
 161 adis16350_read_data_from_ring(struct device *dev,
 162                               struct device_attribute *attr,
 163                               char *buf)
 164 {
 165         return 0;
 166 }
 167
 168 static inline int adis16350_configure_ring(struct iio_dev *indio_dev)
 169 {
 170         return 0;
 171 }
 172
 173 static inline void adis16350_unconfigure_ring(struct iio_dev *indio_dev)
 174 {
 175 }
 176 #endif /* CONFIG_IIO_RING_BUFFER */
 177 #endif /* SPI_ADIS16350_H_ */