Commit d61a4ce8 authored by Gerd Hoffmann's avatar Gerd Hoffmann Committed by malc

Add Intel HD Audio support to qemu.

This patch adds three devices to qemu:

	Intel HD Audio Controller, the PCI device.  Provides a HDA bus.
	Emulates ICH6 at the moment.  Adding a ICH9 PCIE
	variant shouldn't be hard.

	HDA Codec.  Attaches to the HDA bus.  Supports 16bit stereo,
	rates 16k -> 96k, playback, recording and volume control
	(with CONFIG_MIXEMU=y).

	HDA Codec without recording support.  Subset of the hda-duplex
	codec.  Use this if you don't want your guests access your mic.

Usage: add '-device intel-hda -device hda-duplex' to your command line.

Tested guests:
 * Linux works.
 * Win7 works.
 * DOS (mpxplay) works.
 * WinXP doesn't work.

[ v2 changes ]
 * Fixed endianess, big endian hosts work now.
 * Fixed some emulation bugs.
 * Added immediate command emulation.
 * Added vmstate support.
 * Make it behave like all other sound card drivers:
   - can be configured via '--audio-card-list=hda'
   - can be added to a VM using '-soundhw hda'
 * Code style fixups.
 * Zapped guest-triggerable asserts.
 * Handle partial reads/writes of audio data correctly.

Cc: malc <>
Signed-off-by: default avatarGerd Hoffmann <>
Signed-off-by: default avatarmalc <>
parent cdae5cfb
......@@ -253,6 +253,7 @@ sound-obj-$(CONFIG_AC97) += ac97.o
sound-obj-$(CONFIG_ADLIB) += fmopl.o adlib.o
sound-obj-$(CONFIG_GUS) += gus.o gusemu_hal.o gusemu_mixer.o
sound-obj-$(CONFIG_CS4231A) += cs4231a.o
sound-obj-$(CONFIG_HDA) += intel-hda.o hda-audio.o
adlib.o fmopl.o: QEMU_CFLAGS += -DBUILD_Y8950=0
hw-obj-$(CONFIG_SOUND) += $(sound-obj-y)
......@@ -499,6 +499,16 @@ struct soundhw soundhw[] = {
"Intel HD Audio",
{ .init_pci = intel_hda_and_codec_init }
#endif /* HAS_AUDIO_CHOICE */
{ NULL, NULL, 0, 0, { NULL } }
......@@ -76,8 +76,8 @@ sparc_cpu=""
audio_card_list="ac97 es1370 sb16"
audio_possible_cards="ac97 es1370 sb16 cs4231a adlib gus"
audio_card_list="ac97 es1370 sb16 hda"
audio_possible_cards="ac97 es1370 sb16 cs4231a adlib gus hda"
......@@ -15,3 +15,6 @@ int ac97_init(PCIBus *buf);
/* cs4231a.c */
int cs4231a_init(qemu_irq *pic);
/* intel-hda.c + hda-audio.c */
int intel_hda_and_codec_init(PCIBus *bus);
This diff is collapsed.
This diff is collapsed.
This diff is collapsed.
#ifndef HW_INTEL_HDA_H
#define HW_INTEL_HDA_H
#include "qdev.h"
/* --------------------------------------------------------------------- */
/* hda bus */
typedef struct HDACodecBus HDACodecBus;
typedef struct HDACodecDevice HDACodecDevice;
typedef struct HDACodecDeviceInfo HDACodecDeviceInfo;
typedef void (*hda_codec_response_func)(HDACodecDevice *dev,
bool solicited, uint32_t response);
typedef bool (*hda_codec_xfer_func)(HDACodecDevice *dev,
uint32_t stnr, bool output,
uint8_t *buf, uint32_t len);
struct HDACodecBus {
BusState qbus;
uint32_t next_cad;
hda_codec_response_func response;
hda_codec_xfer_func xfer;
struct HDACodecDevice {
DeviceState qdev;
HDACodecDeviceInfo *info;
uint32_t cad; /* codec address */
struct HDACodecDeviceInfo {
DeviceInfo qdev;
int (*init)(HDACodecDevice *dev);
void (*command)(HDACodecDevice *dev, uint32_t nid, uint32_t data);
void (*stream)(HDACodecDevice *dev, uint32_t stnr, bool running);
void hda_codec_bus_init(DeviceState *dev, HDACodecBus *bus,
hda_codec_response_func response,
hda_codec_xfer_func xfer);
void hda_codec_register(HDACodecDeviceInfo *info);
HDACodecDevice *hda_codec_find(HDACodecBus *bus, uint32_t cad);
void hda_codec_response(HDACodecDevice *dev, bool solicited, uint32_t response);
bool hda_codec_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
uint8_t *buf, uint32_t len);
/* --------------------------------------------------------------------- */
#define dprint(_dev, _level, _fmt, ...) \
do { \
if (_dev->debug >= _level) { \
fprintf(stderr, "%s: ", _dev->name); \
fprintf(stderr, _fmt, ## __VA_ARGS__); \
} \
} while (0)
/* --------------------------------------------------------------------- */
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment