Anton Yakovlev
2021-Jan-20 00:36 UTC
[PATCH 2/7] uapi: virtio_snd: add the sound device header file
The file contains the definitions for the sound device from the OASIS
virtio spec.
Signed-off-by: Anton Yakovlev <anton.yakovlev at opensynergy.com>
---
MAINTAINERS | 6 +
include/uapi/linux/virtio_snd.h | 361 ++++++++++++++++++++++++++++++++
2 files changed, 367 insertions(+)
create mode 100644 include/uapi/linux/virtio_snd.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 00836f6452f0..6dfd59eafe82 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -18936,6 +18936,12 @@ W: https://virtio-mem.gitlab.io/
F: drivers/virtio/virtio_mem.c
F: include/uapi/linux/virtio_mem.h
+VIRTIO SOUND DRIVER
+M: Anton Yakovlev <anton.yakovlev at opensynergy.com>
+L: virtualization at lists.linux-foundation.org
+S: Maintained
+F: include/uapi/linux/virtio_snd.h
+
VIRTUAL BOX GUEST DEVICE DRIVER
M: Hans de Goede <hdegoede at redhat.com>
M: Arnd Bergmann <arnd at arndb.de>
diff --git a/include/uapi/linux/virtio_snd.h b/include/uapi/linux/virtio_snd.h
new file mode 100644
index 000000000000..1ff6310e54d6
--- /dev/null
+++ b/include/uapi/linux/virtio_snd.h
@@ -0,0 +1,361 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Copyright (C) 2020 OpenSynergy GmbH
+ *
+ * This header is BSD licensed so anyone can use the definitions to
+ * implement compatible drivers/servers.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of OpenSynergy GmbH nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IBM OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#ifndef VIRTIO_SND_IF_H
+#define VIRTIO_SND_IF_H
+
+#include <linux/virtio_types.h>
+
+/*******************************************************************************
+ * CONFIGURATION SPACE
+ */
+struct virtio_snd_config {
+ /* # of available physical jacks */
+ __le32 jacks;
+ /* # of available PCM streams */
+ __le32 streams;
+ /* # of available channel maps */
+ __le32 chmaps;
+};
+
+enum {
+ /* device virtqueue indexes */
+ VIRTIO_SND_VQ_CONTROL = 0,
+ VIRTIO_SND_VQ_EVENT,
+ VIRTIO_SND_VQ_TX,
+ VIRTIO_SND_VQ_RX,
+ /* # of device virtqueues */
+ VIRTIO_SND_VQ_MAX
+};
+
+/*******************************************************************************
+ * COMMON DEFINITIONS
+ */
+
+/* supported dataflow directions */
+enum {
+ VIRTIO_SND_D_OUTPUT = 0,
+ VIRTIO_SND_D_INPUT
+};
+
+enum {
+ /* jack control request types */
+ VIRTIO_SND_R_JACK_INFO = 1,
+ VIRTIO_SND_R_JACK_REMAP,
+
+ /* PCM control request types */
+ VIRTIO_SND_R_PCM_INFO = 0x0100,
+ VIRTIO_SND_R_PCM_SET_PARAMS,
+ VIRTIO_SND_R_PCM_PREPARE,
+ VIRTIO_SND_R_PCM_RELEASE,
+ VIRTIO_SND_R_PCM_START,
+ VIRTIO_SND_R_PCM_STOP,
+
+ /* channel map control request types */
+ VIRTIO_SND_R_CHMAP_INFO = 0x0200,
+
+ /* jack event types */
+ VIRTIO_SND_EVT_JACK_CONNECTED = 0x1000,
+ VIRTIO_SND_EVT_JACK_DISCONNECTED,
+
+ /* PCM event types */
+ VIRTIO_SND_EVT_PCM_PERIOD_ELAPSED = 0x1100,
+ VIRTIO_SND_EVT_PCM_XRUN,
+
+ /* common status codes */
+ VIRTIO_SND_S_OK = 0x8000,
+ VIRTIO_SND_S_BAD_MSG,
+ VIRTIO_SND_S_NOT_SUPP,
+ VIRTIO_SND_S_IO_ERR
+};
+
+/* common header */
+struct virtio_snd_hdr {
+ __le32 code;
+};
+
+/* event notification */
+struct virtio_snd_event {
+ /* VIRTIO_SND_EVT_XXX */
+ struct virtio_snd_hdr hdr;
+ /* optional event data */
+ __le32 data;
+};
+
+/* common control request to query an item information */
+struct virtio_snd_query_info {
+ /* VIRTIO_SND_R_XXX_INFO */
+ struct virtio_snd_hdr hdr;
+ /* item start identifier */
+ __le32 start_id;
+ /* item count to query */
+ __le32 count;
+ /* item information size in bytes */
+ __le32 size;
+};
+
+/* common item information header */
+struct virtio_snd_info {
+ /* function group node id (High Definition Audio Specification 7.1.2) */
+ __le32 hda_fn_nid;
+};
+
+/*******************************************************************************
+ * JACK CONTROL MESSAGES
+ */
+struct virtio_snd_jack_hdr {
+ /* VIRTIO_SND_R_JACK_XXX */
+ struct virtio_snd_hdr hdr;
+ /* 0 ... virtio_snd_config::jacks - 1 */
+ __le32 jack_id;
+};
+
+/* supported jack features */
+enum {
+ VIRTIO_SND_JACK_F_REMAP = 0
+};
+
+struct virtio_snd_jack_info {
+ /* common header */
+ struct virtio_snd_info hdr;
+ /* supported feature bit map (1 << VIRTIO_SND_JACK_F_XXX) */
+ __le32 features;
+ /* pin configuration (High Definition Audio Specification 7.3.3.31) */
+ __le32 hda_reg_defconf;
+ /* pin capabilities (High Definition Audio Specification 7.3.4.9) */
+ __le32 hda_reg_caps;
+ /* current jack connection status (0: disconnected, 1: connected) */
+ __u8 connected;
+
+ __u8 padding[7];
+};
+
+/* jack remapping control request */
+struct virtio_snd_jack_remap {
+ /* .code = VIRTIO_SND_R_JACK_REMAP */
+ struct virtio_snd_jack_hdr hdr;
+ /* selected association number */
+ __le32 association;
+ /* selected sequence number */
+ __le32 sequence;
+};
+
+/*******************************************************************************
+ * PCM CONTROL MESSAGES
+ */
+struct virtio_snd_pcm_hdr {
+ /* VIRTIO_SND_R_PCM_XXX */
+ struct virtio_snd_hdr hdr;
+ /* 0 ... virtio_snd_config::streams - 1 */
+ __le32 stream_id;
+};
+
+/* 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_SND_PCM_F_EVT_XRUNS
+};
+
+/* supported PCM 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_176400,
+ VIRTIO_SND_PCM_RATE_192000,
+ VIRTIO_SND_PCM_RATE_384000
+};
+
+struct virtio_snd_pcm_info {
+ /* common header */
+ struct virtio_snd_info hdr;
+ /* supported feature bit map (1 << VIRTIO_SND_PCM_F_XXX) */
+ __le32 features;
+ /* supported sample format bit map (1 << VIRTIO_SND_PCM_FMT_XXX) */
+ __le64 formats;
+ /* supported frame rate bit map (1 << VIRTIO_SND_PCM_RATE_XXX) */
+ __le64 rates;
+ /* dataflow direction (VIRTIO_SND_D_XXX) */
+ __u8 direction;
+ /* minimum # of supported channels */
+ __u8 channels_min;
+ /* maximum # of supported channels */
+ __u8 channels_max;
+
+ __u8 padding[5];
+};
+
+/* set PCM stream format */
+struct virtio_snd_pcm_set_params {
+ /* .code = VIRTIO_SND_R_PCM_SET_PARAMS */
+ struct virtio_snd_pcm_hdr hdr;
+ /* size of the hardware buffer */
+ __le32 buffer_bytes;
+ /* size of the hardware period */
+ __le32 period_bytes;
+ /* selected feature bit map (1 << VIRTIO_SND_PCM_F_XXX) */
+ __le32 features;
+ /* selected # of channels */
+ __u8 channels;
+ /* selected sample format (VIRTIO_SND_PCM_FMT_XXX) */
+ __u8 format;
+ /* selected frame rate (VIRTIO_SND_PCM_RATE_XXX) */
+ __u8 rate;
+
+ __u8 padding;
+};
+
+/*******************************************************************************
+ * PCM I/O MESSAGES
+ */
+
+/* I/O request header */
+struct virtio_snd_pcm_xfer {
+ /* 0 ... virtio_snd_config::streams - 1 */
+ __le32 stream_id;
+};
+
+/* I/O request status */
+struct virtio_snd_pcm_status {
+ /* VIRTIO_SND_S_XXX */
+ __le32 status;
+ /* current device latency */
+ __le32 latency_bytes;
+};
+
+/*******************************************************************************
+ * CHANNEL MAP CONTROL MESSAGES
+ */
+struct virtio_snd_chmap_hdr {
+ /* VIRTIO_SND_R_CHMAP_XXX */
+ struct virtio_snd_hdr hdr;
+ /* 0 ... virtio_snd_config::chmaps - 1 */
+ __le32 chmap_id;
+};
+
+/* standard channel position definition */
+enum {
+ VIRTIO_SND_CHMAP_NONE = 0, /* undefined */
+ VIRTIO_SND_CHMAP_NA, /* silent */
+ VIRTIO_SND_CHMAP_MONO, /* mono stream */
+ VIRTIO_SND_CHMAP_FL, /* front left */
+ VIRTIO_SND_CHMAP_FR, /* front right */
+ VIRTIO_SND_CHMAP_RL, /* rear left */
+ VIRTIO_SND_CHMAP_RR, /* rear right */
+ VIRTIO_SND_CHMAP_FC, /* front center */
+ VIRTIO_SND_CHMAP_LFE, /* low frequency (LFE) */
+ VIRTIO_SND_CHMAP_SL, /* side left */
+ VIRTIO_SND_CHMAP_SR, /* side right */
+ VIRTIO_SND_CHMAP_RC, /* rear center */
+ VIRTIO_SND_CHMAP_FLC, /* front left center */
+ VIRTIO_SND_CHMAP_FRC, /* front right center */
+ VIRTIO_SND_CHMAP_RLC, /* rear left center */
+ VIRTIO_SND_CHMAP_RRC, /* rear right center */
+ VIRTIO_SND_CHMAP_FLW, /* front left wide */
+ VIRTIO_SND_CHMAP_FRW, /* front right wide */
+ VIRTIO_SND_CHMAP_FLH, /* front left high */
+ VIRTIO_SND_CHMAP_FCH, /* front center high */
+ VIRTIO_SND_CHMAP_FRH, /* front right high */
+ VIRTIO_SND_CHMAP_TC, /* top center */
+ VIRTIO_SND_CHMAP_TFL, /* top front left */
+ VIRTIO_SND_CHMAP_TFR, /* top front right */
+ VIRTIO_SND_CHMAP_TFC, /* top front center */
+ VIRTIO_SND_CHMAP_TRL, /* top rear left */
+ VIRTIO_SND_CHMAP_TRR, /* top rear right */
+ VIRTIO_SND_CHMAP_TRC, /* top rear center */
+ VIRTIO_SND_CHMAP_TFLC, /* top front left center */
+ VIRTIO_SND_CHMAP_TFRC, /* top front right center */
+ VIRTIO_SND_CHMAP_TSL, /* top side left */
+ VIRTIO_SND_CHMAP_TSR, /* top side right */
+ VIRTIO_SND_CHMAP_LLFE, /* left LFE */
+ VIRTIO_SND_CHMAP_RLFE, /* right LFE */
+ VIRTIO_SND_CHMAP_BC, /* bottom center */
+ VIRTIO_SND_CHMAP_BLC, /* bottom left center */
+ VIRTIO_SND_CHMAP_BRC /* bottom right center */
+};
+
+/* maximum possible number of channels */
+#define VIRTIO_SND_CHMAP_MAX_SIZE 18
+
+struct virtio_snd_chmap_info {
+ /* common header */
+ struct virtio_snd_info hdr;
+ /* dataflow direction (VIRTIO_SND_D_XXX) */
+ __u8 direction;
+ /* # of valid channel position values */
+ __u8 channels;
+ /* channel position values (VIRTIO_SND_CHMAP_XXX) */
+ __u8 positions[VIRTIO_SND_CHMAP_MAX_SIZE];
+};
+
+#endif /* VIRTIO_SND_IF_H */
--
2.30.0
Michael S. Tsirkin
2021-Jan-20 08:19 UTC
[PATCH 2/7] uapi: virtio_snd: add the sound device header file
On Wed, Jan 20, 2021 at 01:36:30AM +0100, Anton Yakovlev wrote:> The file contains the definitions for the sound device from the OASIS > virtio spec. > > Signed-off-by: Anton Yakovlev <anton.yakovlev at opensynergy.com> > --- > MAINTAINERS | 6 + > include/uapi/linux/virtio_snd.h | 361 ++++++++++++++++++++++++++++++++ > 2 files changed, 367 insertions(+) > create mode 100644 include/uapi/linux/virtio_snd.h > > diff --git a/MAINTAINERS b/MAINTAINERS > index 00836f6452f0..6dfd59eafe82 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -18936,6 +18936,12 @@ W: https://virtio-mem.gitlab.io/ > F: drivers/virtio/virtio_mem.c > F: include/uapi/linux/virtio_mem.h > > +VIRTIO SOUND DRIVER > +M: Anton Yakovlev <anton.yakovlev at opensynergy.com> > +L: virtualization at lists.linux-foundation.org > +S: Maintained > +F: include/uapi/linux/virtio_snd.h > + > VIRTUAL BOX GUEST DEVICE DRIVER > M: Hans de Goede <hdegoede at redhat.com> > M: Arnd Bergmann <arnd at arndb.de>You want sound/virtio here too, right? I'd just squash this with the next patch in series.> diff --git a/include/uapi/linux/virtio_snd.h b/include/uapi/linux/virtio_snd.h > new file mode 100644 > index 000000000000..1ff6310e54d6 > --- /dev/null > +++ b/include/uapi/linux/virtio_snd.h > @@ -0,0 +1,361 @@ > +/* SPDX-License-Identifier: BSD-3-Clause */ > +/* > + * Copyright (C) 2020 OpenSynergy GmbH > + * > + * This header is BSD licensed so anyone can use the definitions to > + * implement compatible drivers/servers. > + * > + * Redistribution and use in source and binary forms, with or without > + * modification, are permitted provided that the following conditions > + * are met: > + * 1. Redistributions of source code must retain the above copyright > + * notice, this list of conditions and the following disclaimer. > + * 2. Redistributions in binary form must reproduce the above copyright > + * notice, this list of conditions and the following disclaimer in the > + * documentation and/or other materials provided with the distribution. > + * 3. Neither the name of OpenSynergy GmbH nor the names of its contributors > + * may be used to endorse or promote products derived from this software > + * without specific prior written permission. > + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS > + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT > + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS > + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IBM OR > + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, > + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT > + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF > + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND > + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, > + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT > + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF > + * SUCH DAMAGE. > + */ > +#ifndef VIRTIO_SND_IF_H > +#define VIRTIO_SND_IF_H > + > +#include <linux/virtio_types.h> > + > +/******************************************************************************* > + * CONFIGURATION SPACE > + */ > +struct virtio_snd_config { > + /* # of available physical jacks */ > + __le32 jacks; > + /* # of available PCM streams */ > + __le32 streams; > + /* # of available channel maps */ > + __le32 chmaps; > +}; > + > +enum { > + /* device virtqueue indexes */ > + VIRTIO_SND_VQ_CONTROL = 0, > + VIRTIO_SND_VQ_EVENT, > + VIRTIO_SND_VQ_TX, > + VIRTIO_SND_VQ_RX, > + /* # of device virtqueues */ > + VIRTIO_SND_VQ_MAX > +}; > + > +/******************************************************************************* > + * COMMON DEFINITIONS > + */ > + > +/* supported dataflow directions */ > +enum { > + VIRTIO_SND_D_OUTPUT = 0, > + VIRTIO_SND_D_INPUT > +}; > + > +enum { > + /* jack control request types */ > + VIRTIO_SND_R_JACK_INFO = 1, > + VIRTIO_SND_R_JACK_REMAP, > + > + /* PCM control request types */ > + VIRTIO_SND_R_PCM_INFO = 0x0100, > + VIRTIO_SND_R_PCM_SET_PARAMS, > + VIRTIO_SND_R_PCM_PREPARE, > + VIRTIO_SND_R_PCM_RELEASE, > + VIRTIO_SND_R_PCM_START, > + VIRTIO_SND_R_PCM_STOP, > + > + /* channel map control request types */ > + VIRTIO_SND_R_CHMAP_INFO = 0x0200, > + > + /* jack event types */ > + VIRTIO_SND_EVT_JACK_CONNECTED = 0x1000, > + VIRTIO_SND_EVT_JACK_DISCONNECTED, > + > + /* PCM event types */ > + VIRTIO_SND_EVT_PCM_PERIOD_ELAPSED = 0x1100, > + VIRTIO_SND_EVT_PCM_XRUN, > + > + /* common status codes */ > + VIRTIO_SND_S_OK = 0x8000, > + VIRTIO_SND_S_BAD_MSG, > + VIRTIO_SND_S_NOT_SUPP, > + VIRTIO_SND_S_IO_ERR > +}; > + > +/* common header */ > +struct virtio_snd_hdr { > + __le32 code; > +}; > + > +/* event notification */ > +struct virtio_snd_event { > + /* VIRTIO_SND_EVT_XXX */ > + struct virtio_snd_hdr hdr; > + /* optional event data */ > + __le32 data; > +}; > + > +/* common control request to query an item information */ > +struct virtio_snd_query_info { > + /* VIRTIO_SND_R_XXX_INFO */ > + struct virtio_snd_hdr hdr; > + /* item start identifier */ > + __le32 start_id; > + /* item count to query */ > + __le32 count; > + /* item information size in bytes */ > + __le32 size; > +}; > + > +/* common item information header */ > +struct virtio_snd_info { > + /* function group node id (High Definition Audio Specification 7.1.2) */ > + __le32 hda_fn_nid; > +}; > + > +/******************************************************************************* > + * JACK CONTROL MESSAGES > + */ > +struct virtio_snd_jack_hdr { > + /* VIRTIO_SND_R_JACK_XXX */ > + struct virtio_snd_hdr hdr; > + /* 0 ... virtio_snd_config::jacks - 1 */ > + __le32 jack_id; > +}; > + > +/* supported jack features */ > +enum { > + VIRTIO_SND_JACK_F_REMAP = 0 > +}; > + > +struct virtio_snd_jack_info { > + /* common header */ > + struct virtio_snd_info hdr; > + /* supported feature bit map (1 << VIRTIO_SND_JACK_F_XXX) */ > + __le32 features; > + /* pin configuration (High Definition Audio Specification 7.3.3.31) */ > + __le32 hda_reg_defconf; > + /* pin capabilities (High Definition Audio Specification 7.3.4.9) */ > + __le32 hda_reg_caps; > + /* current jack connection status (0: disconnected, 1: connected) */ > + __u8 connected; > + > + __u8 padding[7]; > +}; > + > +/* jack remapping control request */ > +struct virtio_snd_jack_remap { > + /* .code = VIRTIO_SND_R_JACK_REMAP */ > + struct virtio_snd_jack_hdr hdr; > + /* selected association number */ > + __le32 association; > + /* selected sequence number */ > + __le32 sequence; > +}; > + > +/******************************************************************************* > + * PCM CONTROL MESSAGES > + */ > +struct virtio_snd_pcm_hdr { > + /* VIRTIO_SND_R_PCM_XXX */ > + struct virtio_snd_hdr hdr; > + /* 0 ... virtio_snd_config::streams - 1 */ > + __le32 stream_id; > +}; > + > +/* 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_SND_PCM_F_EVT_XRUNS > +}; > + > +/* supported PCM 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_176400, > + VIRTIO_SND_PCM_RATE_192000, > + VIRTIO_SND_PCM_RATE_384000 > +}; > + > +struct virtio_snd_pcm_info { > + /* common header */ > + struct virtio_snd_info hdr; > + /* supported feature bit map (1 << VIRTIO_SND_PCM_F_XXX) */ > + __le32 features; > + /* supported sample format bit map (1 << VIRTIO_SND_PCM_FMT_XXX) */ > + __le64 formats; > + /* supported frame rate bit map (1 << VIRTIO_SND_PCM_RATE_XXX) */ > + __le64 rates; > + /* dataflow direction (VIRTIO_SND_D_XXX) */ > + __u8 direction; > + /* minimum # of supported channels */ > + __u8 channels_min; > + /* maximum # of supported channels */ > + __u8 channels_max; > + > + __u8 padding[5]; > +}; > + > +/* set PCM stream format */ > +struct virtio_snd_pcm_set_params { > + /* .code = VIRTIO_SND_R_PCM_SET_PARAMS */ > + struct virtio_snd_pcm_hdr hdr; > + /* size of the hardware buffer */ > + __le32 buffer_bytes; > + /* size of the hardware period */ > + __le32 period_bytes; > + /* selected feature bit map (1 << VIRTIO_SND_PCM_F_XXX) */ > + __le32 features; > + /* selected # of channels */ > + __u8 channels; > + /* selected sample format (VIRTIO_SND_PCM_FMT_XXX) */ > + __u8 format; > + /* selected frame rate (VIRTIO_SND_PCM_RATE_XXX) */ > + __u8 rate; > + > + __u8 padding; > +}; > + > +/******************************************************************************* > + * PCM I/O MESSAGES > + */ > + > +/* I/O request header */ > +struct virtio_snd_pcm_xfer { > + /* 0 ... virtio_snd_config::streams - 1 */ > + __le32 stream_id; > +}; > + > +/* I/O request status */ > +struct virtio_snd_pcm_status { > + /* VIRTIO_SND_S_XXX */ > + __le32 status; > + /* current device latency */ > + __le32 latency_bytes; > +}; > + > +/******************************************************************************* > + * CHANNEL MAP CONTROL MESSAGES > + */ > +struct virtio_snd_chmap_hdr { > + /* VIRTIO_SND_R_CHMAP_XXX */ > + struct virtio_snd_hdr hdr; > + /* 0 ... virtio_snd_config::chmaps - 1 */ > + __le32 chmap_id; > +}; > + > +/* standard channel position definition */ > +enum { > + VIRTIO_SND_CHMAP_NONE = 0, /* undefined */ > + VIRTIO_SND_CHMAP_NA, /* silent */ > + VIRTIO_SND_CHMAP_MONO, /* mono stream */ > + VIRTIO_SND_CHMAP_FL, /* front left */ > + VIRTIO_SND_CHMAP_FR, /* front right */ > + VIRTIO_SND_CHMAP_RL, /* rear left */ > + VIRTIO_SND_CHMAP_RR, /* rear right */ > + VIRTIO_SND_CHMAP_FC, /* front center */ > + VIRTIO_SND_CHMAP_LFE, /* low frequency (LFE) */ > + VIRTIO_SND_CHMAP_SL, /* side left */ > + VIRTIO_SND_CHMAP_SR, /* side right */ > + VIRTIO_SND_CHMAP_RC, /* rear center */ > + VIRTIO_SND_CHMAP_FLC, /* front left center */ > + VIRTIO_SND_CHMAP_FRC, /* front right center */ > + VIRTIO_SND_CHMAP_RLC, /* rear left center */ > + VIRTIO_SND_CHMAP_RRC, /* rear right center */ > + VIRTIO_SND_CHMAP_FLW, /* front left wide */ > + VIRTIO_SND_CHMAP_FRW, /* front right wide */ > + VIRTIO_SND_CHMAP_FLH, /* front left high */ > + VIRTIO_SND_CHMAP_FCH, /* front center high */ > + VIRTIO_SND_CHMAP_FRH, /* front right high */ > + VIRTIO_SND_CHMAP_TC, /* top center */ > + VIRTIO_SND_CHMAP_TFL, /* top front left */ > + VIRTIO_SND_CHMAP_TFR, /* top front right */ > + VIRTIO_SND_CHMAP_TFC, /* top front center */ > + VIRTIO_SND_CHMAP_TRL, /* top rear left */ > + VIRTIO_SND_CHMAP_TRR, /* top rear right */ > + VIRTIO_SND_CHMAP_TRC, /* top rear center */ > + VIRTIO_SND_CHMAP_TFLC, /* top front left center */ > + VIRTIO_SND_CHMAP_TFRC, /* top front right center */ > + VIRTIO_SND_CHMAP_TSL, /* top side left */ > + VIRTIO_SND_CHMAP_TSR, /* top side right */ > + VIRTIO_SND_CHMAP_LLFE, /* left LFE */ > + VIRTIO_SND_CHMAP_RLFE, /* right LFE */ > + VIRTIO_SND_CHMAP_BC, /* bottom center */ > + VIRTIO_SND_CHMAP_BLC, /* bottom left center */ > + VIRTIO_SND_CHMAP_BRC /* bottom right center */ > +}; > + > +/* maximum possible number of channels */ > +#define VIRTIO_SND_CHMAP_MAX_SIZE 18 > + > +struct virtio_snd_chmap_info { > + /* common header */ > + struct virtio_snd_info hdr; > + /* dataflow direction (VIRTIO_SND_D_XXX) */ > + __u8 direction; > + /* # of valid channel position values */ > + __u8 channels; > + /* channel position values (VIRTIO_SND_CHMAP_XXX) */ > + __u8 positions[VIRTIO_SND_CHMAP_MAX_SIZE]; > +}; > + > +#endif /* VIRTIO_SND_IF_H */ > -- > 2.30.0 >
Michael S. Tsirkin
2021-Jan-20 08:32 UTC
[PATCH 2/7] uapi: virtio_snd: add the sound device header file
On Wed, Jan 20, 2021 at 01:36:30AM +0100, Anton Yakovlev wrote:> The file contains the definitions for the sound device from the OASIS > virtio spec. > > Signed-off-by: Anton Yakovlev <anton.yakovlev at opensynergy.com> > --- > MAINTAINERS | 6 + > include/uapi/linux/virtio_snd.h | 361 ++++++++++++++++++++++++++++++++ > 2 files changed, 367 insertions(+) > create mode 100644 include/uapi/linux/virtio_snd.h > > diff --git a/MAINTAINERS b/MAINTAINERS > index 00836f6452f0..6dfd59eafe82 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -18936,6 +18936,12 @@ W: https://virtio-mem.gitlab.io/ > F: drivers/virtio/virtio_mem.c > F: include/uapi/linux/virtio_mem.h > > +VIRTIO SOUND DRIVER > +M: Anton Yakovlev <anton.yakovlev at opensynergy.com> > +L: virtualization at lists.linux-foundation.org > +S: Maintained > +F: include/uapi/linux/virtio_snd.h > + > VIRTUAL BOX GUEST DEVICE DRIVER > M: Hans de Goede <hdegoede at redhat.com> > M: Arnd Bergmann <arnd at arndb.de>Who's merging this driver me? If so pls add mst at redhat.com so I'm copied on patches.> diff --git a/include/uapi/linux/virtio_snd.h b/include/uapi/linux/virtio_snd.h > new file mode 100644 > index 000000000000..1ff6310e54d6 > --- /dev/null > +++ b/include/uapi/linux/virtio_snd.h > @@ -0,0 +1,361 @@ > +/* SPDX-License-Identifier: BSD-3-Clause */ > +/* > + * Copyright (C) 2020 OpenSynergy GmbH > + * > + * This header is BSD licensed so anyone can use the definitions to > + * implement compatible drivers/servers. > + * > + * Redistribution and use in source and binary forms, with or without > + * modification, are permitted provided that the following conditions > + * are met: > + * 1. Redistributions of source code must retain the above copyright > + * notice, this list of conditions and the following disclaimer. > + * 2. Redistributions in binary form must reproduce the above copyright > + * notice, this list of conditions and the following disclaimer in the > + * documentation and/or other materials provided with the distribution. > + * 3. Neither the name of OpenSynergy GmbH nor the names of its contributors > + * may be used to endorse or promote products derived from this software > + * without specific prior written permission. > + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS > + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT > + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS > + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IBM OR > + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, > + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT > + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF > + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND > + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, > + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT > + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF > + * SUCH DAMAGE. > + */ > +#ifndef VIRTIO_SND_IF_H > +#define VIRTIO_SND_IF_H > + > +#include <linux/virtio_types.h> > + > +/******************************************************************************* > + * CONFIGURATION SPACE > + */ > +struct virtio_snd_config { > + /* # of available physical jacks */ > + __le32 jacks; > + /* # of available PCM streams */ > + __le32 streams; > + /* # of available channel maps */ > + __le32 chmaps; > +}; > + > +enum { > + /* device virtqueue indexes */ > + VIRTIO_SND_VQ_CONTROL = 0, > + VIRTIO_SND_VQ_EVENT, > + VIRTIO_SND_VQ_TX, > + VIRTIO_SND_VQ_RX, > + /* # of device virtqueues */ > + VIRTIO_SND_VQ_MAX > +}; > + > +/******************************************************************************* > + * COMMON DEFINITIONS > + */ > + > +/* supported dataflow directions */ > +enum { > + VIRTIO_SND_D_OUTPUT = 0, > + VIRTIO_SND_D_INPUT > +}; > + > +enum { > + /* jack control request types */ > + VIRTIO_SND_R_JACK_INFO = 1, > + VIRTIO_SND_R_JACK_REMAP, > + > + /* PCM control request types */ > + VIRTIO_SND_R_PCM_INFO = 0x0100, > + VIRTIO_SND_R_PCM_SET_PARAMS, > + VIRTIO_SND_R_PCM_PREPARE, > + VIRTIO_SND_R_PCM_RELEASE, > + VIRTIO_SND_R_PCM_START, > + VIRTIO_SND_R_PCM_STOP, > + > + /* channel map control request types */ > + VIRTIO_SND_R_CHMAP_INFO = 0x0200, > + > + /* jack event types */ > + VIRTIO_SND_EVT_JACK_CONNECTED = 0x1000, > + VIRTIO_SND_EVT_JACK_DISCONNECTED, > + > + /* PCM event types */ > + VIRTIO_SND_EVT_PCM_PERIOD_ELAPSED = 0x1100, > + VIRTIO_SND_EVT_PCM_XRUN, > + > + /* common status codes */ > + VIRTIO_SND_S_OK = 0x8000, > + VIRTIO_SND_S_BAD_MSG, > + VIRTIO_SND_S_NOT_SUPP, > + VIRTIO_SND_S_IO_ERR > +}; > + > +/* common header */ > +struct virtio_snd_hdr { > + __le32 code; > +}; > + > +/* event notification */ > +struct virtio_snd_event { > + /* VIRTIO_SND_EVT_XXX */ > + struct virtio_snd_hdr hdr; > + /* optional event data */ > + __le32 data; > +}; > + > +/* common control request to query an item information */ > +struct virtio_snd_query_info { > + /* VIRTIO_SND_R_XXX_INFO */ > + struct virtio_snd_hdr hdr; > + /* item start identifier */ > + __le32 start_id; > + /* item count to query */ > + __le32 count; > + /* item information size in bytes */ > + __le32 size; > +}; > + > +/* common item information header */ > +struct virtio_snd_info { > + /* function group node id (High Definition Audio Specification 7.1.2) */ > + __le32 hda_fn_nid; > +}; > + > +/******************************************************************************* > + * JACK CONTROL MESSAGES > + */ > +struct virtio_snd_jack_hdr { > + /* VIRTIO_SND_R_JACK_XXX */ > + struct virtio_snd_hdr hdr; > + /* 0 ... virtio_snd_config::jacks - 1 */ > + __le32 jack_id; > +}; > + > +/* supported jack features */ > +enum { > + VIRTIO_SND_JACK_F_REMAP = 0 > +}; > + > +struct virtio_snd_jack_info { > + /* common header */ > + struct virtio_snd_info hdr; > + /* supported feature bit map (1 << VIRTIO_SND_JACK_F_XXX) */ > + __le32 features; > + /* pin configuration (High Definition Audio Specification 7.3.3.31) */ > + __le32 hda_reg_defconf; > + /* pin capabilities (High Definition Audio Specification 7.3.4.9) */ > + __le32 hda_reg_caps; > + /* current jack connection status (0: disconnected, 1: connected) */ > + __u8 connected; > + > + __u8 padding[7]; > +}; > + > +/* jack remapping control request */ > +struct virtio_snd_jack_remap { > + /* .code = VIRTIO_SND_R_JACK_REMAP */ > + struct virtio_snd_jack_hdr hdr; > + /* selected association number */ > + __le32 association; > + /* selected sequence number */ > + __le32 sequence; > +}; > + > +/******************************************************************************* > + * PCM CONTROL MESSAGES > + */ > +struct virtio_snd_pcm_hdr { > + /* VIRTIO_SND_R_PCM_XXX */ > + struct virtio_snd_hdr hdr; > + /* 0 ... virtio_snd_config::streams - 1 */ > + __le32 stream_id; > +}; > + > +/* 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_SND_PCM_F_EVT_XRUNS > +}; > + > +/* supported PCM 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_176400, > + VIRTIO_SND_PCM_RATE_192000, > + VIRTIO_SND_PCM_RATE_384000 > +}; > + > +struct virtio_snd_pcm_info { > + /* common header */ > + struct virtio_snd_info hdr; > + /* supported feature bit map (1 << VIRTIO_SND_PCM_F_XXX) */ > + __le32 features; > + /* supported sample format bit map (1 << VIRTIO_SND_PCM_FMT_XXX) */ > + __le64 formats; > + /* supported frame rate bit map (1 << VIRTIO_SND_PCM_RATE_XXX) */ > + __le64 rates; > + /* dataflow direction (VIRTIO_SND_D_XXX) */ > + __u8 direction; > + /* minimum # of supported channels */ > + __u8 channels_min; > + /* maximum # of supported channels */ > + __u8 channels_max; > + > + __u8 padding[5]; > +}; > + > +/* set PCM stream format */ > +struct virtio_snd_pcm_set_params { > + /* .code = VIRTIO_SND_R_PCM_SET_PARAMS */ > + struct virtio_snd_pcm_hdr hdr; > + /* size of the hardware buffer */ > + __le32 buffer_bytes; > + /* size of the hardware period */ > + __le32 period_bytes; > + /* selected feature bit map (1 << VIRTIO_SND_PCM_F_XXX) */ > + __le32 features; > + /* selected # of channels */ > + __u8 channels; > + /* selected sample format (VIRTIO_SND_PCM_FMT_XXX) */ > + __u8 format; > + /* selected frame rate (VIRTIO_SND_PCM_RATE_XXX) */ > + __u8 rate; > + > + __u8 padding; > +}; > + > +/******************************************************************************* > + * PCM I/O MESSAGES > + */ > + > +/* I/O request header */ > +struct virtio_snd_pcm_xfer { > + /* 0 ... virtio_snd_config::streams - 1 */ > + __le32 stream_id; > +}; > + > +/* I/O request status */ > +struct virtio_snd_pcm_status { > + /* VIRTIO_SND_S_XXX */ > + __le32 status; > + /* current device latency */ > + __le32 latency_bytes; > +}; > + > +/******************************************************************************* > + * CHANNEL MAP CONTROL MESSAGES > + */ > +struct virtio_snd_chmap_hdr { > + /* VIRTIO_SND_R_CHMAP_XXX */ > + struct virtio_snd_hdr hdr; > + /* 0 ... virtio_snd_config::chmaps - 1 */ > + __le32 chmap_id; > +}; > + > +/* standard channel position definition */ > +enum { > + VIRTIO_SND_CHMAP_NONE = 0, /* undefined */ > + VIRTIO_SND_CHMAP_NA, /* silent */ > + VIRTIO_SND_CHMAP_MONO, /* mono stream */ > + VIRTIO_SND_CHMAP_FL, /* front left */ > + VIRTIO_SND_CHMAP_FR, /* front right */ > + VIRTIO_SND_CHMAP_RL, /* rear left */ > + VIRTIO_SND_CHMAP_RR, /* rear right */ > + VIRTIO_SND_CHMAP_FC, /* front center */ > + VIRTIO_SND_CHMAP_LFE, /* low frequency (LFE) */ > + VIRTIO_SND_CHMAP_SL, /* side left */ > + VIRTIO_SND_CHMAP_SR, /* side right */ > + VIRTIO_SND_CHMAP_RC, /* rear center */ > + VIRTIO_SND_CHMAP_FLC, /* front left center */ > + VIRTIO_SND_CHMAP_FRC, /* front right center */ > + VIRTIO_SND_CHMAP_RLC, /* rear left center */ > + VIRTIO_SND_CHMAP_RRC, /* rear right center */ > + VIRTIO_SND_CHMAP_FLW, /* front left wide */ > + VIRTIO_SND_CHMAP_FRW, /* front right wide */ > + VIRTIO_SND_CHMAP_FLH, /* front left high */ > + VIRTIO_SND_CHMAP_FCH, /* front center high */ > + VIRTIO_SND_CHMAP_FRH, /* front right high */ > + VIRTIO_SND_CHMAP_TC, /* top center */ > + VIRTIO_SND_CHMAP_TFL, /* top front left */ > + VIRTIO_SND_CHMAP_TFR, /* top front right */ > + VIRTIO_SND_CHMAP_TFC, /* top front center */ > + VIRTIO_SND_CHMAP_TRL, /* top rear left */ > + VIRTIO_SND_CHMAP_TRR, /* top rear right */ > + VIRTIO_SND_CHMAP_TRC, /* top rear center */ > + VIRTIO_SND_CHMAP_TFLC, /* top front left center */ > + VIRTIO_SND_CHMAP_TFRC, /* top front right center */ > + VIRTIO_SND_CHMAP_TSL, /* top side left */ > + VIRTIO_SND_CHMAP_TSR, /* top side right */ > + VIRTIO_SND_CHMAP_LLFE, /* left LFE */ > + VIRTIO_SND_CHMAP_RLFE, /* right LFE */ > + VIRTIO_SND_CHMAP_BC, /* bottom center */ > + VIRTIO_SND_CHMAP_BLC, /* bottom left center */ > + VIRTIO_SND_CHMAP_BRC /* bottom right center */ > +}; > + > +/* maximum possible number of channels */ > +#define VIRTIO_SND_CHMAP_MAX_SIZE 18 > + > +struct virtio_snd_chmap_info { > + /* common header */ > + struct virtio_snd_info hdr; > + /* dataflow direction (VIRTIO_SND_D_XXX) */ > + __u8 direction; > + /* # of valid channel position values */ > + __u8 channels; > + /* channel position values (VIRTIO_SND_CHMAP_XXX) */ > + __u8 positions[VIRTIO_SND_CHMAP_MAX_SIZE]; > +}; > + > +#endif /* VIRTIO_SND_IF_H */ > -- > 2.30.0 > >