hw/intel-hda.h

   1 #ifndef HW_INTEL_HDA_H
   2 #define HW_INTEL_HDA_H
   3
   4 #include "hw/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 #define TYPE_HDA_BUS "HDA"
  18 #define HDA_BUS(obj) OBJECT_CHECK(HDACodecBus, (obj), TYPE_HDA_BUS)
  19
  20 typedef struct HDACodecBus HDACodecBus;
  21 typedef struct HDACodecDevice HDACodecDevice;
  22
  23 typedef void (*hda_codec_response_func)(HDACodecDevice *dev,
  24                                         bool solicited, uint32_t response);
  25 typedef bool (*hda_codec_xfer_func)(HDACodecDevice *dev,
  26                                     uint32_t stnr, bool output,
  27                                     uint8_t *buf, uint32_t len);
  28
  29 struct HDACodecBus {
  30     BusState qbus;
  31     uint32_t next_cad;
  32     hda_codec_response_func response;
  33     hda_codec_xfer_func xfer;
  34 };
  35
  36 typedef struct HDACodecDeviceClass
  37 {
  38     DeviceClass parent_class;
  39
  40     int (*init)(HDACodecDevice *dev);
  41     int (*exit)(HDACodecDevice *dev);
  42     void (*command)(HDACodecDevice *dev, uint32_t nid, uint32_t data);
  43     void (*stream)(HDACodecDevice *dev, uint32_t stnr, bool running, bool output);
  44 } HDACodecDeviceClass;
  45
  46 struct HDACodecDevice {
  47     DeviceState         qdev;
  48     uint32_t            cad;    /* codec address */
  49 };
  50
  51 void hda_codec_bus_init(DeviceState *dev, HDACodecBus *bus,
  52                         hda_codec_response_func response,
  53                         hda_codec_xfer_func xfer);
  54 HDACodecDevice *hda_codec_find(HDACodecBus *bus, uint32_t cad);
  55
  56 void hda_codec_response(HDACodecDevice *dev, bool solicited, uint32_t response);
  57 bool hda_codec_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
  58                     uint8_t *buf, uint32_t len);
  59
  60 /* --------------------------------------------------------------------- */
  61
  62 #define dprint(_dev, _level, _fmt, ...)                                 \
  63     do {                                                                \
  64         if (_dev->debug >= _level) {                                    \
  65             fprintf(stderr, "%s: ", _dev->name);                        \
  66             fprintf(stderr, _fmt, ## __VA_ARGS__);                      \
  67         }                                                               \
  68     } while (0)
  69
  70 /* --------------------------------------------------------------------- */
  71
  72 #endif