Added structures for handle PCM control requests
to the heaer file.
Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh2...@gmail.com>
---
include/hw/virtio/virtio-snd.h | 123 +++++++++++++++++++++++++++++++++
1 file changed, 123 insertions(+)
diff --git a/include/hw/virtio/virtio-snd.h b/include/hw/virtio/virtio-snd.h
index f58b06a949..a7828c4ab8 100644
--- a/include/hw/virtio/virtio-snd.h
+++ b/include/hw/virtio/virtio-snd.h
@@ -134,4 +134,127 @@ typedef struct virtio_snd_jack_remap {
uint32_t sequence;
} virtio_snd_jack_remap;
+/* PCM CONTROL MESSAGES */
+
+typedef struct virtio_snd_pcm_hdr {
+ /* .code = VIRTIO_SND_R_PCM_* */
+ virtio_snd_hdr hdr;
+ /* 0 to (virtio_snd_config.streams - 1) */
+ uint32_t stream_id;
+} virtio_snd_pcm_hdr;
+
+
+/* Supported PCM stream features */
+enum {
+ VIRTIO_SND_PCM_F_SHMEM_HOST = 0,
+ VIRTIO_SND_PCM_F_SHMEM_GUEST,
+ VIRTIO_SND_PCM_F_MSG_POLLING,
+ VIRTIO_SND_PCM_F_EVT_SHMEM_PERIODS,
+ VIRTIO_SNDPCM_F_EVT_XRUNS
+};
+
+/* Supported sample formats */
+enum {
+ /* analog formats (width / physical width) */
+ VIRTIO_SND_PCM_FMT_IMA_ADPCM = 0, /* 4 / 4 bits */
+ VIRTIO_SND_PCM_FMT_MU_LAW, /* 8 / 8 bits */
+ VIRTIO_SND_PCM_FMT_A_LAW, /* 8 / 8 bits */
+ VIRTIO_SND_PCM_FMT_S8, /* 8 / 8 bits */
+ VIRTIO_SND_PCM_FMT_U8, /* 8 / 8 bits */
+ VIRTIO_SND_PCM_FMT_S16, /* 16 / 16 bits */
+ VIRTIO_SND_PCM_FMT_U16, /* 16 / 16 bits */
+ VIRTIO_SND_PCM_FMT_S18_3, /* 18 / 24 bits */
+ VIRTIO_SND_PCM_FMT_U18_3, /* 18 / 24 bits */
+ VIRTIO_SND_PCM_FMT_S20_3, /* 20 / 24 bits */
+ VIRTIO_SND_PCM_FMT_U20_3, /* 20 / 24 bits */
+ VIRTIO_SND_PCM_FMT_S24_3, /* 24 / 24 bits */
+ VIRTIO_SND_PCM_FMT_U24_3, /* 24 / 24 bits */
+ VIRTIO_SND_PCM_FMT_S20, /* 20 / 32 bits */
+ VIRTIO_SND_PCM_FMT_U20, /* 20 / 32 bits */
+ VIRTIO_SND_PCM_FMT_S24, /* 24 / 32 bits */
+ VIRTIO_SND_PCM_FMT_U24, /* 24 / 32 bits */
+ VIRTIO_SND_PCM_FMT_S32, /* 32 / 32 bits */
+ VIRTIO_SND_PCM_FMT_U32, /* 32 / 32 bits */
+ VIRTIO_SND_PCM_FMT_FLOAT, /* 32 / 32 bits */
+ VIRTIO_SND_PCM_FMT_FLOAT64, /* 64 / 64 bits */
+ /* digital formats (width / physical width) */
+ VIRTIO_SND_PCM_FMT_DSD_U8, /* 8 / 8 bits */
+ VIRTIO_SND_PCM_FMT_DSD_U16, /* 16 / 16 bits */
+ VIRTIO_SND_PCM_FMT_DSD_U32, /* 32 / 32 bits */
+ VIRTIO_SND_PCM_FMT_IEC958_SUBFRAME /* 32 / 32 bits */
+};
+
+/* Supported PCM frame rates */
+enum {
+ VIRTIO_SND_PCM_RATE_5512 = 0,
+ VIRTIO_SND_PCM_RATE_8000,
+ VIRTIO_SND_PCM_RATE_11025,
+ VIRTIO_SND_PCM_RATE_16000,
+ VIRTIO_SND_PCM_RATE_22050,
+ VIRTIO_SND_PCM_RATE_32000,
+ VIRTIO_SND_PCM_RATE_44100,
+ VIRTIO_SND_PCM_RATE_48000,
+ VIRTIO_SND_PCM_RATE_64000,
+ VIRTIO_SND_PCM_RATE_88200,
+ VIRTIO_SND_PCM_RATE_96000,
+ VIRTIO_SND_PCM_RATE_176399,
+ VIRTIO_SND_PCM_RATE_192000,
+ VIRTIO_SND_PCM_RATE_384000
+};
+
+/* PCM stream info structure */
+typedef struct virtio_snd_pcm_info {
+ /* common header */
+ virtio_snd_info hdr;
+ /* supported features bitmap (1 << VIRTIO_SND_PCM_F_*) */
+ uint32_t features;
+ /* supported sample formats bitmap (1 << VIRTIO_SND_PCM_FMT_*) */
+ uint64_t formats;
+ /* supported sample rates bitmap (1 << VIRTIO_SND_PCM_RATE_*) */
+ uint64_t rates;
+ /* direction of the stream (VIRTIO_SND_D_*) */
+ uint8_t direction;
+ /* min # of supported channels */
+ uint8_t channels_min;
+ /* max # of supported channels */
+ uint8_t channels_max;
+
+ uint8_t padding[5];
+} virtio_snd_pcm_info;
+
+/* set PCM stream params */
+typedef struct virtio_snd_pcm_set_params {
+ virtio_snd_pcm_hdr hdr;
+ /* size of hardware buffer in bytes */
+ uint32_t buffer_bytes;
+ /* size of hardware period in bytes */
+ uint32_t period_bytes;
+ /* selected feature bitmap */
+ uint32_t features;
+ /* number of channels */
+ uint8_t channel;
+ /* VIRTIO_SND_PCM_FMT_* */
+ uint8_t format;
+ /* VIRTIO_SND_PCM_RATE_* */
+ uint8_t rate;
+
+ uint8_t padding;
+} virtio_snd_pcm_set_params;
+
+/* PCM I/O MESSAGES */
+
+/* I/O request header */
+typedef struct virtio_snd_pcm_xfer {
+ /* 0 to (virtio_snd_config.stream - 1 */
+ uint32_t stream_id;
+} virtio_snd_pcm_xfer;
+
+/* I/O request status */
+typedef struct virtio_snd_pcm_status {
+ /* VIRTIO_SND_S_* */
+ uint32_t status;
+ /* current device latency */
+ uint32_t latency_bytes;
+} virtio_snd_pcm_status;
+
#endif
--
2.31.1
