hw/audio/intel-hda.h

   1 #ifndef HW_INTEL_HDA_H
   2 #define HW_INTEL_HDA_H
   3
   4 #include "hw/qdev-core.h"
   5 #include "qom/object.h"
   6
   7 /* --------------------------------------------------------------------- */
   8 /* hda bus                                                               */
   9
  10 #define TYPE_HDA_CODEC_DEVICE "hda-codec"
  11 OBJECT_DECLARE_TYPE(HDACodecDevice, HDACodecDeviceClass,
  12                     HDA_CODEC_DEVICE)
  13
  14 #define TYPE_HDA_BUS "HDA"
  15 OBJECT_DECLARE_SIMPLE_TYPE(HDACodecBus, HDA_BUS)
  16
  17
  18 typedef void (*hda_codec_response_func)(HDACodecDevice *dev,
  19                                         bool solicited, uint32_t response);
  20 typedef bool (*hda_codec_xfer_func)(HDACodecDevice *dev,
  21                                     uint32_t stnr, bool output,
  22                                     uint8_t *buf, uint32_t len);
  23
  24 struct HDACodecBus {
  25     BusState qbus;
  26     uint32_t next_cad;
  27     hda_codec_response_func response;
  28     hda_codec_xfer_func xfer;
  29 };
  30
  31 struct HDACodecDeviceClass {
  32     DeviceClass parent_class;
  33
  34     void (*init)(HDACodecDevice *dev, Error **errp);
  35     void (*exit)(HDACodecDevice *dev);
  36     void (*command)(HDACodecDevice *dev, uint32_t nid, uint32_t data);
  37     void (*stream)(HDACodecDevice *dev, uint32_t stnr, bool running, bool output);
  38 };
  39
  40 struct HDACodecDevice {
  41     DeviceState         qdev;
  42     uint32_t            cad;    /* codec address */
  43 };
  44
  45 void hda_codec_bus_init(DeviceState *dev, HDACodecBus *bus, size_t bus_size,
  46                         hda_codec_response_func response,
  47                         hda_codec_xfer_func xfer);
  48 HDACodecDevice *hda_codec_find(HDACodecBus *bus, uint32_t cad);
  49
  50 void hda_codec_response(HDACodecDevice *dev, bool solicited, uint32_t response);
  51 bool hda_codec_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
  52                     uint8_t *buf, uint32_t len);
  53
  54 /* --------------------------------------------------------------------- */
  55
  56 #define dprint(_dev, _level, _fmt, ...)                                 \
  57     do {                                                                \
  58         if (_dev->debug >= _level) {                                    \
  59             fprintf(stderr, "%s: ", _dev->name);                        \
  60             fprintf(stderr, _fmt, ## __VA_ARGS__);                      \
  61         }                                                               \
  62     } while (0)
  63
  64 /* --------------------------------------------------------------------- */
  65
  66 #endif