| Message ID | 1a8ffb08d6357b3b83109dabc7430490b2a0e05e.1692731646.git.manos.pitsidianakis@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add VIRTIO sound card | expand |
Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org> writes: > Add a new VIRTIO device for the virtio sound device id. Functionality > will be added in the following commits. > > Signed-off-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org> > --- > MAINTAINERS | 6 + > hw/virtio/Kconfig | 5 + > hw/virtio/meson.build | 1 + > hw/virtio/trace-events | 9 ++ > hw/virtio/virtio-snd.c | 230 +++++++++++++++++++++++++++++++++ > include/hw/virtio/virtio-snd.h | 78 +++++++++++ > 6 files changed, 329 insertions(+) > create mode 100644 hw/virtio/virtio-snd.c > create mode 100644 include/hw/virtio/virtio-snd.h > > diff --git a/MAINTAINERS b/MAINTAINERS > index 6111b6b4d9..ba365d621c 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -2245,6 +2245,12 @@ F: hw/virtio/virtio-mem-pci.h > F: hw/virtio/virtio-mem-pci.c > F: include/hw/virtio/virtio-mem.h > > +virtio-snd > +M: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> > +S: Supported > +F: hw/virtio/virtio-snd*.c > +F: include/hw/virtio/virtio-snd.h > + > nvme > M: Keith Busch <kbusch@kernel.org> > M: Klaus Jensen <its@irrelevant.dk> > diff --git a/hw/virtio/Kconfig b/hw/virtio/Kconfig > index 92c9cf6c96..d6f20657b3 100644 > --- a/hw/virtio/Kconfig > +++ b/hw/virtio/Kconfig > @@ -17,6 +17,11 @@ config VIRTIO_PCI > depends on PCI > select VIRTIO > > +config VIRTIO_SND > + bool > + default y > + depends on VIRTIO > + > config VIRTIO_MMIO > bool > select VIRTIO > diff --git a/hw/virtio/meson.build b/hw/virtio/meson.build > index 13e7c6c272..120d4bfa0a 100644 > --- a/hw/virtio/meson.build > +++ b/hw/virtio/meson.build > @@ -31,6 +31,7 @@ specific_virtio_ss.add(when: 'CONFIG_VHOST_VSOCK', if_true: files('vhost-vsock.c > specific_virtio_ss.add(when: 'CONFIG_VHOST_USER_VSOCK', if_true: files('vhost-user-vsock.c')) > specific_virtio_ss.add(when: 'CONFIG_VIRTIO_RNG', if_true: files('virtio-rng.c')) > specific_virtio_ss.add(when: 'CONFIG_VIRTIO_MEM', if_true: files('virtio-mem.c')) > +specific_virtio_ss.add(when: 'CONFIG_VIRTIO_SND', if_true: files('virtio-snd.c')) > specific_virtio_ss.add(when: 'CONFIG_VHOST_USER_I2C', if_true: files('vhost-user-i2c.c')) > specific_virtio_ss.add(when: 'CONFIG_VHOST_USER_RNG', if_true: files('vhost-user-rng.c')) > specific_virtio_ss.add(when: 'CONFIG_VHOST_USER_GPIO', if_true: files('vhost-user-gpio.c')) > diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events > index 7109cf1a3b..3ed7da35f2 100644 > --- a/hw/virtio/trace-events > +++ b/hw/virtio/trace-events > @@ -154,3 +154,12 @@ virtio_pmem_flush_done(int type) "fsync return=%d" > virtio_gpio_start(void) "start" > virtio_gpio_stop(void) "stop" > virtio_gpio_set_status(uint8_t status) "0x%x" > + > +#virtio-snd.c > +virtio_snd_get_config(void *vdev, uint32_t jacks, uint32_t streams, uint32_t chmaps) "snd %p: get_config jacks=%"PRIu32" streams=%"PRIu32" chmaps=%"PRIu32"" > +virtio_snd_set_config(void *vdev, uint32_t jacks, uint32_t new_jacks, uint32_t streams, uint32_t new_streams, uint32_t chmaps, uint32_t new_chmaps) "snd %p: set_config jacks from %"PRIu32"->%"PRIu32", streams from %"PRIu32"->%"PRIu32", chmaps from %"PRIu32"->%"PRIu32 > +virtio_snd_get_features(void *vdev, uint64_t features) "snd %p: get_features 0x%"PRIx64 > +virtio_snd_vm_state_running(void) "vm state running" > +virtio_snd_vm_state_stopped(void) "vm state stopped" > +virtio_snd_realize(void *snd) "snd %p: realize" > +virtio_snd_unrealize(void *snd) "snd %p: unrealize" > diff --git a/hw/virtio/virtio-snd.c b/hw/virtio/virtio-snd.c > new file mode 100644 > index 0000000000..0498e660a5 > --- /dev/null > +++ b/hw/virtio/virtio-snd.c > @@ -0,0 +1,230 @@ > +/* > + * VIRTIO Sound Device conforming to > + * > + * "Virtual I/O Device (VIRTIO) Version 1.2 > + * Committee Specification Draft 01 > + * 09 May 2022" > + * > + * <https://docs.oasis-open.org/virtio/virtio/v1.2/csd01/virtio-v1.2-csd01.html#x1-52900014> > + * > + * Copyright (c) 2023 Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org> > + * Copyright (C) 2019 OpenSynergy GmbH Given its based on OpenSynergies patches we probably should bring their s-o-b's across or add Based-on: references in the commit messages. > + * > + * This work is licensed under the terms of the GNU GPL, version 2 or > + * (at your option) any later version. See the COPYING file in the > + * top-level directory. > + */ > + > +#include "qemu/osdep.h" > +#include "qemu/iov.h" > +#include "qemu/log.h" > +#include "include/qemu/lockable.h" > +#include "sysemu/runstate.h" > +#include "trace.h" > +#include "qapi/error.h" > +#include "hw/virtio/virtio-snd.h" > + > +#define VIRTIO_SOUND_VM_VERSION 1 > +#define VIRTIO_SOUND_JACK_DEFAULT 0 > +#define VIRTIO_SOUND_STREAM_DEFAULT 1 > +#define VIRTIO_SOUND_CHMAP_DEFAULT 0 > +#define VIRTIO_SOUND_HDA_FN_NID 0 > + > +static const VMStateDescription vmstate_virtio_snd_device = { > + .name = TYPE_VIRTIO_SND, > + .version_id = VIRTIO_SOUND_VM_VERSION, > + .minimum_version_id = VIRTIO_SOUND_VM_VERSION, > +}; > + > +static const VMStateDescription vmstate_virtio_snd = { > + .name = "virtio-sound", > + .minimum_version_id = VIRTIO_SOUND_VM_VERSION, > + .version_id = VIRTIO_SOUND_VM_VERSION, > + .fields = (VMStateField[]) { > + VMSTATE_VIRTIO_DEVICE, > + VMSTATE_END_OF_LIST() > + }, > +}; > + > +static Property virtio_snd_properties[] = { > + DEFINE_PROP_UINT32("jacks", VirtIOSound, snd_conf.jacks, > + VIRTIO_SOUND_JACK_DEFAULT), > + DEFINE_PROP_UINT32("streams", VirtIOSound, snd_conf.streams, > + VIRTIO_SOUND_STREAM_DEFAULT), > + DEFINE_PROP_UINT32("chmaps", VirtIOSound, snd_conf.chmaps, > + VIRTIO_SOUND_CHMAP_DEFAULT), > + DEFINE_PROP_END_OF_LIST(), > +}; > + > +static void > +virtio_snd_get_config(VirtIODevice *vdev, uint8_t *config) > +{ > + VirtIOSound *s = VIRTIO_SND(vdev); > + trace_virtio_snd_get_config(vdev, > + s->snd_conf.jacks, > + s->snd_conf.streams, > + s->snd_conf.chmaps); > + > + memcpy(config, &s->snd_conf, sizeof(s->snd_conf)); > +} > + > +static void > +virtio_snd_set_config(VirtIODevice *vdev, const uint8_t *config) > +{ > + VirtIOSound *s = VIRTIO_SND(vdev); > + const virtio_snd_config *sndconfig = > + (const virtio_snd_config *)config; > + > + > + trace_virtio_snd_set_config(vdev, > + s->snd_conf.jacks, > + sndconfig->jacks, > + s->snd_conf.streams, > + sndconfig->streams, > + s->snd_conf.chmaps, > + sndconfig->chmaps); > + > + memcpy(&s->snd_conf, sndconfig, sizeof(s->snd_conf)); > +} > + > +/* > + * Queue handler stub. "Temporary queue handler stub"? seeing as it disappears once everything is complete. > + * > + * @vdev: VirtIOSound device > + * @vq: virtqueue > + */ > +static void virtio_snd_handle_queue(VirtIODevice *vdev, VirtQueue > *vq) {} > + > +static uint64_t get_features(VirtIODevice *vdev, uint64_t features, > + Error **errp) > +{ > + /* > + * virtio-v1.2-csd01, 5.14.3, > + * Feature Bits > + * None currently defined. > + */ > + VirtIOSound *s = VIRTIO_SND(vdev); > + features |= s->features; > + > + trace_virtio_snd_get_features(vdev, features); > + > + return features; > +} > + > +static void virtio_snd_common_realize(DeviceState *dev, > + VirtIOHandleOutput ctrl, > + VirtIOHandleOutput evt, > + VirtIOHandleOutput txq, > + VirtIOHandleOutput rxq, > + Error **errp) > +{ Why split this off from _realize? It only ever has one caller. > + VirtIODevice *vdev = VIRTIO_DEVICE(dev); > + VirtIOSound *vsnd = VIRTIO_SND(dev); > + > + virtio_init(vdev, VIRTIO_ID_SOUND, sizeof(virtio_snd_config)); > + virtio_add_feature(&vsnd->features, VIRTIO_F_VERSION_1); > + > + /* set number of jacks and streams */ > + if (vsnd->snd_conf.jacks > 8) { > + error_setg(errp, > + "Invalid number of jacks: %"PRIu32, > + vsnd->snd_conf.jacks); > + return; > + } > + if (vsnd->snd_conf.streams < 1 || vsnd->snd_conf.streams > 10) { > + error_setg(errp, > + "Invalid number of streams: %"PRIu32, > + vsnd->snd_conf.streams); > + return; > + } > + > + if (vsnd->snd_conf.chmaps > VIRTIO_SND_CHMAP_MAX_SIZE) { > + error_setg(errp, > + "Invalid number of channel maps: %"PRIu32, > + vsnd->snd_conf.chmaps); > + return; > + } > + > + AUD_register_card("virtio-sound", &vsnd->card); > + > + vsnd->queues[VIRTIO_SND_VQ_CONTROL] = virtio_add_queue(vdev, 64, ctrl); > + vsnd->queues[VIRTIO_SND_VQ_EVENT] = virtio_add_queue(vdev, 64, evt); > + vsnd->queues[VIRTIO_SND_VQ_TX] = virtio_add_queue(vdev, 64, txq); > + vsnd->queues[VIRTIO_SND_VQ_RX] = virtio_add_queue(vdev, 64, rxq); > +} > + > +static void > +virtio_snd_vm_state_change(void *, bool running, RunState) > +{ > + if (running) { > + trace_virtio_snd_vm_state_running(); > + } else { > + trace_virtio_snd_vm_state_stopped(); > + } > +} > + > +static void virtio_snd_realize(DeviceState *dev, Error **errp) > +{ > + ERRP_GUARD(); > + VirtIOSound *vsnd = VIRTIO_SND(dev); > + > + vsnd->vmstate = > + qemu_add_vm_change_state_handler(virtio_snd_vm_state_change, vsnd); > + > + trace_virtio_snd_realize(vsnd); > + > + virtio_snd_common_realize(dev, > + virtio_snd_handle_queue, > + virtio_snd_handle_queue, > + virtio_snd_handle_queue, > + virtio_snd_handle_queue, > + errp); > +} > + > +static void virtio_snd_unrealize(DeviceState *dev) > +{ > + VirtIODevice *vdev = VIRTIO_DEVICE(dev); > + VirtIOSound *vsnd = VIRTIO_SND(dev); > + > + qemu_del_vm_change_state_handler(vsnd->vmstate); > + virtio_del_queue(vdev, 0); > + > + trace_virtio_snd_unrealize(vsnd); > + > + AUD_remove_card(&vsnd->card); > + virtio_cleanup(vdev); > +} > + > + > +static void virtio_snd_reset(VirtIODevice *vdev) {} > + > +static void virtio_snd_class_init(ObjectClass *klass, void *data) > +{ > + DeviceClass *dc = DEVICE_CLASS(klass); > + VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass); > + > + > + set_bit(DEVICE_CATEGORY_SOUND, dc->categories); > + device_class_set_props(dc, virtio_snd_properties); > + > + dc->vmsd = &vmstate_virtio_snd; > + vdc->vmsd = &vmstate_virtio_snd_device; > + vdc->realize = virtio_snd_realize; > + vdc->unrealize = virtio_snd_unrealize; > + vdc->get_config = virtio_snd_get_config; > + vdc->set_config = virtio_snd_set_config; > + vdc->get_features = get_features; > + vdc->reset = virtio_snd_reset; > + vdc->legacy_features = 0; > +} > + > +static const TypeInfo virtio_snd_types[] = { > + { > + .name = TYPE_VIRTIO_SND, > + .parent = TYPE_VIRTIO_DEVICE, > + .instance_size = sizeof(VirtIOSound), > + .class_init = virtio_snd_class_init, > + } > +}; > + > +DEFINE_TYPES(virtio_snd_types) > diff --git a/include/hw/virtio/virtio-snd.h b/include/hw/virtio/virtio-snd.h > new file mode 100644 > index 0000000000..b3c0e6f079 > --- /dev/null > +++ b/include/hw/virtio/virtio-snd.h > @@ -0,0 +1,78 @@ > +/* > + * VIRTIO Sound Device conforming to > + * > + * "Virtual I/O Device (VIRTIO) Version 1.2 > + * Committee Specification Draft 01 > + * 09 May 2022" > + * > + * Copyright (c) 2023 Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org> > + * Copyright (C) 2019 OpenSynergy GmbH > + * > + * This work is licensed under the terms of the GNU GPL, version 2 or > + * (at your option) any later version. See the COPYING file in the > + * top-level directory. > + */ > + > +#ifndef QEMU_VIRTIO_SOUND_H > +#define QEMU_VIRTIO_SOUND_H > + > +#include "hw/virtio/virtio.h" > +#include "audio/audio.h" > +#include "standard-headers/linux/virtio_ids.h" > +#include "standard-headers/linux/virtio_snd.h" > + > +#define TYPE_VIRTIO_SND "virtio-sound" > +#define VIRTIO_SND(obj) \ > + OBJECT_CHECK(VirtIOSound, (obj), TYPE_VIRTIO_SND) > + > +/* CONFIGURATION SPACE */ > + > +typedef struct virtio_snd_config virtio_snd_config; > + > +/* COMMON DEFINITIONS */ > + > +/* common header for request/response*/ > +typedef struct virtio_snd_hdr virtio_snd_hdr; > + > +/* event notification */ > +typedef struct virtio_snd_event virtio_snd_event; > + > +/* common control request to query an item information */ > +typedef struct virtio_snd_query_info virtio_snd_query_info; > + > +/* JACK CONTROL MESSAGES */ > + > +typedef struct virtio_snd_jack_hdr virtio_snd_jack_hdr; > + > +/* jack information structure */ > +typedef struct virtio_snd_jack_info virtio_snd_jack_info; > + > +/* jack remapping control request */ > +typedef struct virtio_snd_jack_remap virtio_snd_jack_remap; > + > +/* > + * PCM CONTROL MESSAGES > + */ > +typedef struct virtio_snd_pcm_hdr virtio_snd_pcm_hdr; > + > +/* PCM stream info structure */ > +typedef struct virtio_snd_pcm_info virtio_snd_pcm_info; > + > +/* set PCM stream params */ > +typedef struct virtio_snd_pcm_set_params virtio_snd_pcm_set_params; > + > +/* I/O request header */ > +typedef struct virtio_snd_pcm_xfer virtio_snd_pcm_xfer; > + > +/* I/O request status */ > +typedef struct virtio_snd_pcm_status virtio_snd_pcm_status; > + > +typedef struct VirtIOSound { > + VirtIODevice parent_obj; > + VirtQueue *queues[VIRTIO_SND_VQ_MAX]; > + uint64_t features; > + QEMUSoundCard card; > + VMChangeStateEntry *vmstate; > + virtio_snd_config snd_conf; > +} VirtIOSound; > +#endif Otherwise: Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
diff --git a/MAINTAINERS b/MAINTAINERS index 6111b6b4d9..ba365d621c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2245,6 +2245,12 @@ F: hw/virtio/virtio-mem-pci.h F: hw/virtio/virtio-mem-pci.c F: include/hw/virtio/virtio-mem.h +virtio-snd +M: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> +S: Supported +F: hw/virtio/virtio-snd*.c +F: include/hw/virtio/virtio-snd.h + nvme M: Keith Busch <kbusch@kernel.org> M: Klaus Jensen <its@irrelevant.dk> diff --git a/hw/virtio/Kconfig b/hw/virtio/Kconfig index 92c9cf6c96..d6f20657b3 100644 --- a/hw/virtio/Kconfig +++ b/hw/virtio/Kconfig @@ -17,6 +17,11 @@ config VIRTIO_PCI depends on PCI select VIRTIO +config VIRTIO_SND + bool + default y + depends on VIRTIO + config VIRTIO_MMIO bool select VIRTIO diff --git a/hw/virtio/meson.build b/hw/virtio/meson.build index 13e7c6c272..120d4bfa0a 100644 --- a/hw/virtio/meson.build +++ b/hw/virtio/meson.build @@ -31,6 +31,7 @@ specific_virtio_ss.add(when: 'CONFIG_VHOST_VSOCK', if_true: files('vhost-vsock.c specific_virtio_ss.add(when: 'CONFIG_VHOST_USER_VSOCK', if_true: files('vhost-user-vsock.c')) specific_virtio_ss.add(when: 'CONFIG_VIRTIO_RNG', if_true: files('virtio-rng.c')) specific_virtio_ss.add(when: 'CONFIG_VIRTIO_MEM', if_true: files('virtio-mem.c')) +specific_virtio_ss.add(when: 'CONFIG_VIRTIO_SND', if_true: files('virtio-snd.c')) specific_virtio_ss.add(when: 'CONFIG_VHOST_USER_I2C', if_true: files('vhost-user-i2c.c')) specific_virtio_ss.add(when: 'CONFIG_VHOST_USER_RNG', if_true: files('vhost-user-rng.c')) specific_virtio_ss.add(when: 'CONFIG_VHOST_USER_GPIO', if_true: files('vhost-user-gpio.c')) diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events index 7109cf1a3b..3ed7da35f2 100644 --- a/hw/virtio/trace-events +++ b/hw/virtio/trace-events @@ -154,3 +154,12 @@ virtio_pmem_flush_done(int type) "fsync return=%d" virtio_gpio_start(void) "start" virtio_gpio_stop(void) "stop" virtio_gpio_set_status(uint8_t status) "0x%x" + +#virtio-snd.c +virtio_snd_get_config(void *vdev, uint32_t jacks, uint32_t streams, uint32_t chmaps) "snd %p: get_config jacks=%"PRIu32" streams=%"PRIu32" chmaps=%"PRIu32"" +virtio_snd_set_config(void *vdev, uint32_t jacks, uint32_t new_jacks, uint32_t streams, uint32_t new_streams, uint32_t chmaps, uint32_t new_chmaps) "snd %p: set_config jacks from %"PRIu32"->%"PRIu32", streams from %"PRIu32"->%"PRIu32", chmaps from %"PRIu32"->%"PRIu32 +virtio_snd_get_features(void *vdev, uint64_t features) "snd %p: get_features 0x%"PRIx64 +virtio_snd_vm_state_running(void) "vm state running" +virtio_snd_vm_state_stopped(void) "vm state stopped" +virtio_snd_realize(void *snd) "snd %p: realize" +virtio_snd_unrealize(void *snd) "snd %p: unrealize" diff --git a/hw/virtio/virtio-snd.c b/hw/virtio/virtio-snd.c new file mode 100644 index 0000000000..0498e660a5 --- /dev/null +++ b/hw/virtio/virtio-snd.c @@ -0,0 +1,230 @@ +/* + * VIRTIO Sound Device conforming to + * + * "Virtual I/O Device (VIRTIO) Version 1.2 + * Committee Specification Draft 01 + * 09 May 2022" + * + * <https://docs.oasis-open.org/virtio/virtio/v1.2/csd01/virtio-v1.2-csd01.html#x1-52900014> + * + * Copyright (c) 2023 Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org> + * Copyright (C) 2019 OpenSynergy GmbH + * + * This work is licensed under the terms of the GNU GPL, version 2 or + * (at your option) any later version. See the COPYING file in the + * top-level directory. + */ + +#include "qemu/osdep.h" +#include "qemu/iov.h" +#include "qemu/log.h" +#include "include/qemu/lockable.h" +#include "sysemu/runstate.h" +#include "trace.h" +#include "qapi/error.h" +#include "hw/virtio/virtio-snd.h" + +#define VIRTIO_SOUND_VM_VERSION 1 +#define VIRTIO_SOUND_JACK_DEFAULT 0 +#define VIRTIO_SOUND_STREAM_DEFAULT 1 +#define VIRTIO_SOUND_CHMAP_DEFAULT 0 +#define VIRTIO_SOUND_HDA_FN_NID 0 + +static const VMStateDescription vmstate_virtio_snd_device = { + .name = TYPE_VIRTIO_SND, + .version_id = VIRTIO_SOUND_VM_VERSION, + .minimum_version_id = VIRTIO_SOUND_VM_VERSION, +}; + +static const VMStateDescription vmstate_virtio_snd = { + .name = "virtio-sound", + .minimum_version_id = VIRTIO_SOUND_VM_VERSION, + .version_id = VIRTIO_SOUND_VM_VERSION, + .fields = (VMStateField[]) { + VMSTATE_VIRTIO_DEVICE, + VMSTATE_END_OF_LIST() + }, +}; + +static Property virtio_snd_properties[] = { + DEFINE_PROP_UINT32("jacks", VirtIOSound, snd_conf.jacks, + VIRTIO_SOUND_JACK_DEFAULT), + DEFINE_PROP_UINT32("streams", VirtIOSound, snd_conf.streams, + VIRTIO_SOUND_STREAM_DEFAULT), + DEFINE_PROP_UINT32("chmaps", VirtIOSound, snd_conf.chmaps, + VIRTIO_SOUND_CHMAP_DEFAULT), + DEFINE_PROP_END_OF_LIST(), +}; + +static void +virtio_snd_get_config(VirtIODevice *vdev, uint8_t *config) +{ + VirtIOSound *s = VIRTIO_SND(vdev); + trace_virtio_snd_get_config(vdev, + s->snd_conf.jacks, + s->snd_conf.streams, + s->snd_conf.chmaps); + + memcpy(config, &s->snd_conf, sizeof(s->snd_conf)); +} + +static void +virtio_snd_set_config(VirtIODevice *vdev, const uint8_t *config) +{ + VirtIOSound *s = VIRTIO_SND(vdev); + const virtio_snd_config *sndconfig = + (const virtio_snd_config *)config; + + + trace_virtio_snd_set_config(vdev, + s->snd_conf.jacks, + sndconfig->jacks, + s->snd_conf.streams, + sndconfig->streams, + s->snd_conf.chmaps, + sndconfig->chmaps); + + memcpy(&s->snd_conf, sndconfig, sizeof(s->snd_conf)); +} + +/* + * Queue handler stub. + * + * @vdev: VirtIOSound device + * @vq: virtqueue + */ +static void virtio_snd_handle_queue(VirtIODevice *vdev, VirtQueue *vq) {} + +static uint64_t get_features(VirtIODevice *vdev, uint64_t features, + Error **errp) +{ + /* + * virtio-v1.2-csd01, 5.14.3, + * Feature Bits + * None currently defined. + */ + VirtIOSound *s = VIRTIO_SND(vdev); + features |= s->features; + + trace_virtio_snd_get_features(vdev, features); + + return features; +} + +static void virtio_snd_common_realize(DeviceState *dev, + VirtIOHandleOutput ctrl, + VirtIOHandleOutput evt, + VirtIOHandleOutput txq, + VirtIOHandleOutput rxq, + Error **errp) +{ + VirtIODevice *vdev = VIRTIO_DEVICE(dev); + VirtIOSound *vsnd = VIRTIO_SND(dev); + + virtio_init(vdev, VIRTIO_ID_SOUND, sizeof(virtio_snd_config)); + virtio_add_feature(&vsnd->features, VIRTIO_F_VERSION_1); + + /* set number of jacks and streams */ + if (vsnd->snd_conf.jacks > 8) { + error_setg(errp, + "Invalid number of jacks: %"PRIu32, + vsnd->snd_conf.jacks); + return; + } + if (vsnd->snd_conf.streams < 1 || vsnd->snd_conf.streams > 10) { + error_setg(errp, + "Invalid number of streams: %"PRIu32, + vsnd->snd_conf.streams); + return; + } + + if (vsnd->snd_conf.chmaps > VIRTIO_SND_CHMAP_MAX_SIZE) { + error_setg(errp, + "Invalid number of channel maps: %"PRIu32, + vsnd->snd_conf.chmaps); + return; + } + + AUD_register_card("virtio-sound", &vsnd->card); + + vsnd->queues[VIRTIO_SND_VQ_CONTROL] = virtio_add_queue(vdev, 64, ctrl); + vsnd->queues[VIRTIO_SND_VQ_EVENT] = virtio_add_queue(vdev, 64, evt); + vsnd->queues[VIRTIO_SND_VQ_TX] = virtio_add_queue(vdev, 64, txq); + vsnd->queues[VIRTIO_SND_VQ_RX] = virtio_add_queue(vdev, 64, rxq); +} + +static void +virtio_snd_vm_state_change(void *, bool running, RunState) +{ + if (running) { + trace_virtio_snd_vm_state_running(); + } else { + trace_virtio_snd_vm_state_stopped(); + } +} + +static void virtio_snd_realize(DeviceState *dev, Error **errp) +{ + ERRP_GUARD(); + VirtIOSound *vsnd = VIRTIO_SND(dev); + + vsnd->vmstate = + qemu_add_vm_change_state_handler(virtio_snd_vm_state_change, vsnd); + + trace_virtio_snd_realize(vsnd); + + virtio_snd_common_realize(dev, + virtio_snd_handle_queue, + virtio_snd_handle_queue, + virtio_snd_handle_queue, + virtio_snd_handle_queue, + errp); +} + +static void virtio_snd_unrealize(DeviceState *dev) +{ + VirtIODevice *vdev = VIRTIO_DEVICE(dev); + VirtIOSound *vsnd = VIRTIO_SND(dev); + + qemu_del_vm_change_state_handler(vsnd->vmstate); + virtio_del_queue(vdev, 0); + + trace_virtio_snd_unrealize(vsnd); + + AUD_remove_card(&vsnd->card); + virtio_cleanup(vdev); +} + + +static void virtio_snd_reset(VirtIODevice *vdev) {} + +static void virtio_snd_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass); + + + set_bit(DEVICE_CATEGORY_SOUND, dc->categories); + device_class_set_props(dc, virtio_snd_properties); + + dc->vmsd = &vmstate_virtio_snd; + vdc->vmsd = &vmstate_virtio_snd_device; + vdc->realize = virtio_snd_realize; + vdc->unrealize = virtio_snd_unrealize; + vdc->get_config = virtio_snd_get_config; + vdc->set_config = virtio_snd_set_config; + vdc->get_features = get_features; + vdc->reset = virtio_snd_reset; + vdc->legacy_features = 0; +} + +static const TypeInfo virtio_snd_types[] = { + { + .name = TYPE_VIRTIO_SND, + .parent = TYPE_VIRTIO_DEVICE, + .instance_size = sizeof(VirtIOSound), + .class_init = virtio_snd_class_init, + } +}; + +DEFINE_TYPES(virtio_snd_types) diff --git a/include/hw/virtio/virtio-snd.h b/include/hw/virtio/virtio-snd.h new file mode 100644 index 0000000000..b3c0e6f079 --- /dev/null +++ b/include/hw/virtio/virtio-snd.h @@ -0,0 +1,78 @@ +/* + * VIRTIO Sound Device conforming to + * + * "Virtual I/O Device (VIRTIO) Version 1.2 + * Committee Specification Draft 01 + * 09 May 2022" + * + * Copyright (c) 2023 Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org> + * Copyright (C) 2019 OpenSynergy GmbH + * + * This work is licensed under the terms of the GNU GPL, version 2 or + * (at your option) any later version. See the COPYING file in the + * top-level directory. + */ + +#ifndef QEMU_VIRTIO_SOUND_H +#define QEMU_VIRTIO_SOUND_H + +#include "hw/virtio/virtio.h" +#include "audio/audio.h" +#include "standard-headers/linux/virtio_ids.h" +#include "standard-headers/linux/virtio_snd.h" + +#define TYPE_VIRTIO_SND "virtio-sound" +#define VIRTIO_SND(obj) \ + OBJECT_CHECK(VirtIOSound, (obj), TYPE_VIRTIO_SND) + +/* CONFIGURATION SPACE */ + +typedef struct virtio_snd_config virtio_snd_config; + +/* COMMON DEFINITIONS */ + +/* common header for request/response*/ +typedef struct virtio_snd_hdr virtio_snd_hdr; + +/* event notification */ +typedef struct virtio_snd_event virtio_snd_event; + +/* common control request to query an item information */ +typedef struct virtio_snd_query_info virtio_snd_query_info; + +/* JACK CONTROL MESSAGES */ + +typedef struct virtio_snd_jack_hdr virtio_snd_jack_hdr; + +/* jack information structure */ +typedef struct virtio_snd_jack_info virtio_snd_jack_info; + +/* jack remapping control request */ +typedef struct virtio_snd_jack_remap virtio_snd_jack_remap; + +/* + * PCM CONTROL MESSAGES + */ +typedef struct virtio_snd_pcm_hdr virtio_snd_pcm_hdr; + +/* PCM stream info structure */ +typedef struct virtio_snd_pcm_info virtio_snd_pcm_info; + +/* set PCM stream params */ +typedef struct virtio_snd_pcm_set_params virtio_snd_pcm_set_params; + +/* I/O request header */ +typedef struct virtio_snd_pcm_xfer virtio_snd_pcm_xfer; + +/* I/O request status */ +typedef struct virtio_snd_pcm_status virtio_snd_pcm_status; + +typedef struct VirtIOSound { + VirtIODevice parent_obj; + VirtQueue *queues[VIRTIO_SND_VQ_MAX]; + uint64_t features; + QEMUSoundCard card; + VMChangeStateEntry *vmstate; + virtio_snd_config snd_conf; +} VirtIOSound; +#endif
Add a new VIRTIO device for the virtio sound device id. Functionality will be added in the following commits. Signed-off-by: Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org> --- MAINTAINERS | 6 + hw/virtio/Kconfig | 5 + hw/virtio/meson.build | 1 + hw/virtio/trace-events | 9 ++ hw/virtio/virtio-snd.c | 230 +++++++++++++++++++++++++++++++++ include/hw/virtio/virtio-snd.h | 78 +++++++++++ 6 files changed, 329 insertions(+) create mode 100644 hw/virtio/virtio-snd.c create mode 100644 include/hw/virtio/virtio-snd.h