vmod/driver/vmod16a2.h

   1 /* channels per card */
   2 #define VMOD16A2_CHANNELS       2
   3
   4 /* VMOD 16A2 registers offsets */
   5 #define VMOD16A2_DAC0IN         0x00    /* channel 0 input */
   6 #define VMOD16A2_DAC1IN         0x02    /* channel 1 input */
   7 #define VMOD16A2_LDAC0          0x04    /* channel 0 load (start conversion) */
   8 #define VMOD16A2_LDAC1          0x06    /* channel 1 load (start conversion) */
   9 #define VMOD16A2_LDAC01         0x08    /* load both channels */
  10 #define VMOD16A2_CDAC0          0x10    /* channel 0 clear */
  11 #define VMOD16A2_CDAC1          0x12    /* channel 1 clear */
  12 #define VMOD16A2_WDCTRL         0x16    /* watchdog timer ctrl register */
  13 #define VMOD16A2_WDCLR          0x18    /* clear watchdog timer */
  14
  15 /** @ brief vmod16a2 register layout */
  16 struct vmod16a2_registers {
  17         unsigned short  dac0in;         /** DAC0 input */
  18         unsigned short  dac1in;         /** DAC1 input */
  19         unsigned short  ldac0;          /** load DAC0 */
  20         unsigned short  ldac1;          /** load DAC1 */
  21         unsigned short  ldac01;         /** load both DACs */
  22         unsigned short  cdac0;          /** clear DAC0 */
  23         unsigned short  cdac1;          /** clear DAC1 */
  24         unsigned short  wdctrl;         /** watchdog set/enable */
  25         unsigned short  wdclr;          /** watchdog clear */
  26 };
  27
  28 /** @brief ioctl arg for IOCPUT */
  29 struct vmod16a2_convert {
  30         unsigned int    channel;        /**< output channel (0 or 1) */
  31         unsigned int    value;          /**< 16-bit value to output */
  32 };
  33
  34 /* driver internals, device table size and ioctl commands */
  35
  36 #define VMOD16A2_MAX_MODULES    64
  37
  38 #define VMOD16A2_IOC_MAGIC      'J'
  39 #define VMOD16A2_IOCPUT         _IOW(VMOD16A2_IOC_MAGIC, 2, struct vmod16a2_convert)