hw/intel-hda.h

   1 #ifndef HW_INTEL_HDA_H
   2 #define HW_INTEL_HDA_H
   3
   4 #include "qdev.h"
   5
   6 /* --------------------------------------------------------------------- */
   7 /* hda bus                                                               */
   8
   9 typedef struct HDACodecBus HDACodecBus;
  10 typedef struct HDACodecDevice HDACodecDevice;
  11 typedef struct HDACodecDeviceInfo HDACodecDeviceInfo;
  12
  13 typedef void (*hda_codec_response_func)(HDACodecDevice *dev,
  14                                         bool solicited, uint32_t response);
  15 typedef bool (*hda_codec_xfer_func)(HDACodecDevice *dev,
  16                                     uint32_t stnr, bool output,
  17                                     uint8_t *buf, uint32_t len);
  18
  19 struct HDACodecBus {
  20     BusState qbus;
  21     uint32_t next_cad;
  22     hda_codec_response_func response;
  23     hda_codec_xfer_func xfer;
  24 };
  25
  26 struct HDACodecDevice {
  27     DeviceState         qdev;
  28     HDACodecDeviceInfo  *info;
  29     uint32_t            cad;    /* codec address */
  30 };
  31
  32 struct HDACodecDeviceInfo {
  33     DeviceInfo qdev;
  34     int (*init)(HDACodecDevice *dev);
  35     void (*command)(HDACodecDevice *dev, uint32_t nid, uint32_t data);
  36     void (*stream)(HDACodecDevice *dev, uint32_t stnr, bool running);
  37 };
  38
  39 void hda_codec_bus_init(DeviceState *dev, HDACodecBus *bus,
  40                         hda_codec_response_func response,
  41                         hda_codec_xfer_func xfer);
  42 void hda_codec_register(HDACodecDeviceInfo *info);
  43 HDACodecDevice *hda_codec_find(HDACodecBus *bus, uint32_t cad);
  44
  45 void hda_codec_response(HDACodecDevice *dev, bool solicited, uint32_t response);
  46 bool hda_codec_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
  47                     uint8_t *buf, uint32_t len);
  48
  49 /* --------------------------------------------------------------------- */
  50
  51 #define dprint(_dev, _level, _fmt, ...)                                 \
  52     do {                                                                \
  53         if (_dev->debug >= _level) {                                    \
  54             fprintf(stderr, "%s: ", _dev->name);                        \
  55             fprintf(stderr, _fmt, ## __VA_ARGS__);                      \
  56         }                                                               \
  57     } while (0)
  58
  59 /* --------------------------------------------------------------------- */
  60
  61 #endif