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 #define TYPE_HDA_CODEC_DEVICE "hda-codec"
  10 #define HDA_CODEC_DEVICE(obj) \
  11      OBJECT_CHECK(HDACodecDevice, (obj), TYPE_HDA_CODEC_DEVICE)
  12 #define HDA_CODEC_DEVICE_CLASS(klass) \
  13      OBJECT_CLASS_CHECK(HDACodecDeviceClass, (klass), TYPE_HDA_CODEC_DEVICE)
  14 #define HDA_CODEC_DEVICE_GET_CLASS(obj) \
  15      OBJECT_GET_CLASS(HDACodecDeviceClass, (obj), TYPE_HDA_CODEC_DEVICE)
  16
  17 typedef struct HDACodecBus HDACodecBus;
  18 typedef struct HDACodecDevice HDACodecDevice;
  19
  20 typedef void (*hda_codec_response_func)(HDACodecDevice *dev,
  21                                         bool solicited, uint32_t response);
  22 typedef bool (*hda_codec_xfer_func)(HDACodecDevice *dev,
  23                                     uint32_t stnr, bool output,
  24                                     uint8_t *buf, uint32_t len);
  25
  26 struct HDACodecBus {
  27     BusState qbus;
  28     uint32_t next_cad;
  29     hda_codec_response_func response;
  30     hda_codec_xfer_func xfer;
  31 };
  32
  33 typedef struct HDACodecDeviceClass
  34 {
  35     DeviceClass parent_class;
  36
  37     int (*init)(HDACodecDevice *dev);
  38     int (*exit)(HDACodecDevice *dev);
  39     void (*command)(HDACodecDevice *dev, uint32_t nid, uint32_t data);
  40     void (*stream)(HDACodecDevice *dev, uint32_t stnr, bool running, bool output);
  41 } HDACodecDeviceClass;
  42
  43 struct HDACodecDevice {
  44     DeviceState         qdev;
  45     uint32_t            cad;    /* codec address */
  46 };
  47
  48 void hda_codec_bus_init(DeviceState *dev, HDACodecBus *bus,
  49                         hda_codec_response_func response,
  50                         hda_codec_xfer_func xfer);
  51 HDACodecDevice *hda_codec_find(HDACodecBus *bus, uint32_t cad);
  52
  53 void hda_codec_response(HDACodecDevice *dev, bool solicited, uint32_t response);
  54 bool hda_codec_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
  55                     uint8_t *buf, uint32_t len);
  56
  57 /* --------------------------------------------------------------------- */
  58
  59 #define dprint(_dev, _level, _fmt, ...)                                 \
  60     do {                                                                \
  61         if (_dev->debug >= _level) {                                    \
  62             fprintf(stderr, "%s: ", _dev->name);                        \
  63             fprintf(stderr, _fmt, ## __VA_ARGS__);                      \
  64         }                                                               \
  65     } while (0)
  66
  67 /* --------------------------------------------------------------------- */
  68
  69 #endif