drivers/staging/iio/gyro/adis16130.h

   1 #ifndef SPI_ADIS16130_H_
   2 #define SPI_ADIS16130_H_
   3
   4 #define ADIS16130_CON         0x0
   5 #define ADIS16130_CON_RD      (1 << 6)
   6 #define ADIS16130_IOP         0x1
   7
   8 /* 1 = data-ready signal low when unread data on all channels; */
   9 #define ADIS16130_IOP_ALL_RDY (1 << 3)
  10 #define ADIS16130_IOP_SYNC    (1 << 0) /* 1 = synchronization enabled */
  11 #define ADIS16130_RATEDATA    0x8 /* Gyroscope output, rate of rotation */
  12 #define ADIS16130_TEMPDATA    0xA /* Temperature output */
  13 #define ADIS16130_RATECS      0x28 /* Gyroscope channel setup */
  14 #define ADIS16130_RATECS_EN   (1 << 3) /* 1 = channel enable; */
  15 #define ADIS16130_TEMPCS      0x2A /* Temperature channel setup */
  16 #define ADIS16130_TEMPCS_EN   (1 << 3)
  17 #define ADIS16130_RATECONV    0x30
  18 #define ADIS16130_TEMPCONV    0x32
  19 #define ADIS16130_MODE        0x38
  20 #define ADIS16130_MODE_24BIT  (1 << 1) /* 1 = 24-bit resolution; */
  21
  22 #define ADIS16130_MAX_TX     4
  23 #define ADIS16130_MAX_RX     4
  24
  25 /**
  26  * struct adis16130_state - device instance specific data
  27  * @us:                 actual spi_device to write data
  28  * @indio_dev:          industrial I/O device structure
  29  * @tx:                 transmit buffer
  30  * @rx:                 recieve buffer
  31  * @buf_lock:           mutex to protect tx and rx
  32  **/
  33 struct adis16130_state {
  34         struct spi_device               *us;
  35         struct iio_dev                  *indio_dev;
  36         u8                              *tx;
  37         u8                              *rx;
  38         u32                             mode; /* 1: 24bits mode 0:16bits mode */
  39         struct mutex                    buf_lock;
  40 };
  41
  42 #endif /* SPI_ADIS16130_H_ */