release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/staging/iio/accel/adis16220.h

   1 #ifndef SPI_ADIS16220_H_
   2 #define SPI_ADIS16220_H_
   3
   4 #define ADIS16220_STARTUP_DELAY 220 /* ms */
   5
   6 #define ADIS16220_READ_REG(a)    a
   7 #define ADIS16220_WRITE_REG(a) ((a) | 0x80)
   8
   9 /* Flash memory write count */
  10 #define ADIS16220_FLASH_CNT     0x00
  11 /* Control, acceleration offset adjustment control */
  12 #define ADIS16220_ACCL_NULL     0x02
  13 /* Control, AIN1 offset adjustment control */
  14 #define ADIS16220_AIN1_NULL     0x04
  15 /* Control, AIN2 offset adjustment control */
  16 #define ADIS16220_AIN2_NULL     0x06
  17 /* Output, power supply during capture */
  18 #define ADIS16220_CAPT_SUPPLY   0x0A
  19 /* Output, temperature during capture */
  20 #define ADIS16220_CAPT_TEMP     0x0C
  21 /* Output, peak acceleration during capture */
  22 #define ADIS16220_CAPT_PEAKA    0x0E
  23 /* Output, peak AIN1 level during capture */
  24 #define ADIS16220_CAPT_PEAK1    0x10
  25 /* Output, peak AIN2 level during capture */
  26 #define ADIS16220_CAPT_PEAK2    0x12
  27 /* Output, capture buffer for acceleration */
  28 #define ADIS16220_CAPT_BUFA     0x14
  29 /* Output, capture buffer for AIN1 */
  30 #define ADIS16220_CAPT_BUF1     0x16
  31 /* Output, capture buffer for AIN2 */
  32 #define ADIS16220_CAPT_BUF2     0x18
  33 /* Control, capture buffer address pointer */
  34 #define ADIS16220_CAPT_PNTR     0x1A
  35 /* Control, capture control register */
  36 #define ADIS16220_CAPT_CTRL     0x1C
  37 /* Control, capture period (automatic mode) */
  38 #define ADIS16220_CAPT_PRD      0x1E
  39 /* Control, Alarm A, acceleration peak threshold */
  40 #define ADIS16220_ALM_MAGA      0x20
  41 /* Control, Alarm 1, AIN1 peak threshold */
  42 #define ADIS16220_ALM_MAG1      0x22
  43 /* Control, Alarm 2, AIN2 peak threshold */
  44 #define ADIS16220_ALM_MAG2      0x24
  45 /* Control, Alarm S, peak threshold */
  46 #define ADIS16220_ALM_MAGS      0x26
  47 /* Control, alarm configuration register */
  48 #define ADIS16220_ALM_CTRL      0x28
  49 /* Control, general I/O configuration */
  50 #define ADIS16220_GPIO_CTRL     0x32
  51 /* Control, self-test control, AIN configuration */
  52 #define ADIS16220_MSC_CTRL      0x34
  53 /* Control, digital I/O configuration */
  54 #define ADIS16220_DIO_CTRL      0x36
  55 /* Control, filter configuration */
  56 #define ADIS16220_AVG_CNT       0x38
  57 /* Status, system status */
  58 #define ADIS16220_DIAG_STAT     0x3C
  59 /* Control, system commands */
  60 #define ADIS16220_GLOB_CMD      0x3E
  61 /* Status, self-test response */
  62 #define ADIS16220_ST_DELTA      0x40
  63 /* Lot Identification Code 1 */
  64 #define ADIS16220_LOT_ID1       0x52
  65 /* Lot Identification Code 2 */
  66 #define ADIS16220_LOT_ID2       0x54
  67 /* Product identifier; convert to decimal = 16220 */
  68 #define ADIS16220_PROD_ID       0x56
  69 /* Serial number */
  70 #define ADIS16220_SERIAL_NUM    0x58
  71
  72 #define ADIS16220_CAPTURE_SIZE  2048
  73
  74 /* MSC_CTRL */
  75 #define ADIS16220_MSC_CTRL_SELF_TEST_EN         (1 << 8)
  76 #define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN1   (1 << 1)
  77 #define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN2   (1 << 0)
  78
  79 /* DIO_CTRL */
  80 #define ADIS16220_MSC_CTRL_DIO2_BUSY_IND     (3<<4)
  81 #define ADIS16220_MSC_CTRL_DIO1_BUSY_IND     (3<<2)
  82 #define ADIS16220_MSC_CTRL_DIO2_ACT_HIGH     (1<<1)
  83 #define ADIS16220_MSC_CTRL_DIO1_ACT_HIGH     (1<<0)
  84
  85 /* DIAG_STAT */
  86 /* AIN2 sample > ALM_MAG2 */
  87 #define ADIS16220_DIAG_STAT_ALM_MAG2    (1<<14)
  88 /* AIN1 sample > ALM_MAG1 */
  89 #define ADIS16220_DIAG_STAT_ALM_MAG1    (1<<13)
  90 /* Acceleration sample > ALM_MAGA */
  91 #define ADIS16220_DIAG_STAT_ALM_MAGA    (1<<12)
  92 /* Error condition programmed into ALM_MAGS[11:0] and ALM_CTRL[5:4] is true */
  93 #define ADIS16220_DIAG_STAT_ALM_MAGS    (1<<11)
  94 /* |Peak value in AIN2 data capture| > ALM_MAG2 */
  95 #define ADIS16220_DIAG_STAT_PEAK_AIN2   (1<<10)
  96 /* |Peak value in AIN1 data capture| > ALM_MAG1 */
  97 #define ADIS16220_DIAG_STAT_PEAK_AIN1   (1<<9)
  98 /* |Peak value in acceleration data capture| > ALM_MAGA */
  99 #define ADIS16220_DIAG_STAT_PEAK_ACCEL  (1<<8)
 100 /* Data ready, capture complete */
 101 #define ADIS16220_DIAG_STAT_DATA_RDY    (1<<7)
 102 #define ADIS16220_DIAG_STAT_FLASH_CHK   (1<<6)
 103 #define ADIS16220_DIAG_STAT_SELF_TEST   (1<<5)
 104 /* Capture period violation/interruption */
 105 #define ADIS16220_DIAG_STAT_VIOLATION   (1<<4)
 106 /* SPI communications failure */
 107 #define ADIS16220_DIAG_STAT_SPI_FAIL    (1<<3)
 108 /* Flash update failure */
 109 #define ADIS16220_DIAG_STAT_FLASH_UPT   (1<<2)
 110 /* Power supply above 3.625 V */
 111 #define ADIS16220_DIAG_STAT_POWER_HIGH  (1<<1)
 112 /* Power supply below 3.15 V */
 113 #define ADIS16220_DIAG_STAT_POWER_LOW   (1<<0)
 114
 115 /* GLOB_CMD */
 116 #define ADIS16220_GLOB_CMD_SW_RESET     (1<<7)
 117 #define ADIS16220_GLOB_CMD_SELF_TEST    (1<<2)
 118 #define ADIS16220_GLOB_CMD_PWR_DOWN     (1<<1)
 119
 120 #define ADIS16220_MAX_TX 2048
 121 #define ADIS16220_MAX_RX 2048
 122
 123 #define ADIS16220_SPI_BURST     (u32)(1000 * 1000)
 124 #define ADIS16220_SPI_FAST      (u32)(2000 * 1000)
 125
 126 /**
 127  * struct adis16220_state - device instance specific data
 128  * @us:                 actual spi_device
 129  * @work_trigger_to_ring: bh for triggered event handling
 130  * @inter:              used to check if new interrupt has been triggered
 131  * @last_timestamp:     passing timestamp from th to bh of interrupt handler
 132  * @indio_dev:          industrial I/O device structure
 133  * @trig:               data ready trigger registered with iio
 134  * @tx:                 transmit buffer
 135  * @rx:                 recieve buffer
 136  * @buf_lock:           mutex to protect tx and rx
 137  **/
 138 struct adis16220_state {
 139         struct spi_device               *us;
 140         struct iio_dev                  *indio_dev;
 141         u8                              *tx;
 142         u8                              *rx;
 143         struct mutex                    buf_lock;
 144 };
 145
 146 #endif /* SPI_ADIS16220_H_ */