diff options
Diffstat (limited to 'meta-agl-bsp')
15 files changed, 2 insertions, 4285 deletions
diff --git a/meta-agl-bsp/conf/machine/include/virtio.inc b/meta-agl-bsp/conf/machine/include/virtio.inc index 8ee71a80b..6f8a638a0 100644 --- a/meta-agl-bsp/conf/machine/include/virtio.inc +++ b/meta-agl-bsp/conf/machine/include/virtio.inc @@ -16,19 +16,8 @@ RDEPENDS:${KERNEL_PACKAGE_NAME}-base = "" PREFERRED_PROVIDER_virtual/kernel ??= "linux-yocto" # Use newer kernel -PREFERRED_VERSION_linux-yocto = "5.10.%" - -# Clear since it is set to 'sllin' in packagegroup-agl-demo.bb, and sllin is not -# compatible with kernel 5.10 at the moment. -LIN_DRIVERS = "" - -# Clear since it is set to 'lttng-modules' in packagegroup-core-tools-profile.bb, -# and lttng-modules are not compatible with 5.10 kernel used for virtio. -LTTNGMODULES:virtio-all = "" +PREFERRED_VERSION_linux-yocto = "5.15.%" EXTRA_IMAGEDEPENDS += "qemu-native qemu-helper-native" IMAGE_CLASSES += "qemuboot" - -# most driver fails to compile -MOST_DRIVERS ?= "" diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-input-add-multi-touch-support.patch b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-input-add-multi-touch-support.patch deleted file mode 100644 index 59a9f9b5d..000000000 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-input-add-multi-touch-support.patch +++ /dev/null @@ -1,66 +0,0 @@ -From 16c10bede8b3d8594279752bf53153491f3f944f Mon Sep 17 00:00:00 2001 -From: Mathias Crombez <mathias.crombez@faurecia.com> -Date: Fri, 15 Jan 2021 02:26:23 +0200 -Subject: [PATCH] virtio-input: add multi-touch support - -Without multi-touch slots allocated, ABS_MT_SLOT events will be lost by -input_handle_abs_event. - -Implementation is based on uinput_create_device. - -Signed-off-by: Mathias Crombez <mathias.crombez@faurecia.com> -Co-developed-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> -Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> -Link: https://lore.kernel.org/r/20210115002623.8576-1-vasyl.vavrychuk@opensynergy.com -Signed-off-by: Michael S. Tsirkin <mst@redhat.com> -Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> ---- - drivers/virtio/virtio_input.c | 11 ++++++++++- - 1 file changed, 10 insertions(+), 1 deletion(-) - -diff --git a/drivers/virtio/virtio_input.c b/drivers/virtio/virtio_input.c -index 244965c20d9b..ce51ae165943 100644 ---- a/drivers/virtio/virtio_input.c -+++ b/drivers/virtio/virtio_input.c -@@ -7,6 +7,7 @@ - - #include <uapi/linux/virtio_ids.h> - #include <uapi/linux/virtio_input.h> -+#include <linux/input/mt.h> - - struct virtio_input { - struct virtio_device *vdev; -@@ -219,7 +220,7 @@ static int virtinput_probe(struct virtio_device *vdev) - struct virtio_input *vi; - unsigned long flags; - size_t size; -- int abs, err; -+ int abs, err, nslots; - - if (!virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) - return -ENODEV; -@@ -304,6 +305,13 @@ static int virtinput_probe(struct virtio_device *vdev) - continue; - virtinput_cfg_abs(vi, abs); - } -+ -+ if (test_bit(ABS_MT_SLOT, vi->idev->absbit)) { -+ nslots = input_abs_get_max(vi->idev, ABS_MT_SLOT) + 1; -+ err = input_mt_init_slots(vi->idev, nslots, 0); -+ if (err) -+ goto err_mt_init_slots; -+ } - } - - virtio_device_ready(vdev); -@@ -319,6 +327,7 @@ static int virtinput_probe(struct virtio_device *vdev) - spin_lock_irqsave(&vi->lock, flags); - vi->ready = false; - spin_unlock_irqrestore(&vi->lock, flags); -+err_mt_init_slots: - input_free_device(vi->idev); - err_input_alloc: - vdev->config->del_vqs(vdev); --- -2.31.1 - diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0001-uapi-virtio_ids-add-a-sound-device-type-ID-from-OASI.patch b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0001-uapi-virtio_ids-add-a-sound-device-type-ID-from-OASI.patch deleted file mode 100644 index e303d10c7..000000000 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0001-uapi-virtio_ids-add-a-sound-device-type-ID-from-OASI.patch +++ /dev/null @@ -1,28 +0,0 @@ -From 6afbb3650d7e02785030f1212c88b50d7296bb45 Mon Sep 17 00:00:00 2001 -From: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Date: Tue, 2 Mar 2021 17:47:01 +0100 -Subject: [PATCH] uapi: virtio_ids: add a sound device type ID from OASIS spec - -The OASIS virtio spec defines a sound device type ID that is not -present in the header yet. - -Signed-off-by: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Link: https://lore.kernel.org/r/20210302164709.3142702-2-anton.yakovlev@opensynergy.com -Signed-off-by: Takashi Iwai <tiwai@suse.de> -Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> ---- - include/uapi/linux/virtio_ids.h | 1 + - 1 file changed, 1 insertion(+) - -diff --git a/include/uapi/linux/virtio_ids.h b/include/uapi/linux/virtio_ids.h -index b052355ac7a3..bc740d6d2259 100644 ---- a/include/uapi/linux/virtio_ids.h -+++ b/include/uapi/linux/virtio_ids.h -@@ -45,6 +45,7 @@ - #define VIRTIO_ID_CRYPTO 20 /* virtio crypto */ - #define VIRTIO_ID_IOMMU 23 /* virtio IOMMU */ - #define VIRTIO_ID_MEM 24 /* virtio mem */ -+#define VIRTIO_ID_SOUND 25 /* virtio sound */ - #define VIRTIO_ID_FS 26 /* virtio filesystem */ - #define VIRTIO_ID_PMEM 27 /* virtio pmem */ - #define VIRTIO_ID_MAC80211_HWSIM 29 /* virtio mac80211-hwsim */ diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0002-ALSA-virtio-add-virtio-sound-driver.patch b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0002-ALSA-virtio-add-virtio-sound-driver.patch deleted file mode 100644 index e2f80442f..000000000 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0002-ALSA-virtio-add-virtio-sound-driver.patch +++ /dev/null @@ -1,849 +0,0 @@ -From a1cde5ccba57562aa77739b63b50586e6b197b52 Mon Sep 17 00:00:00 2001 -From: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Date: Tue, 2 Mar 2021 17:47:02 +0100 -Subject: [PATCH] ALSA: virtio: add virtio sound driver - -Introduce skeleton of the virtio sound driver. The driver implements -the virtio sound device specification, which has become part of the -virtio standard. - -Initial initialization of the device, virtqueues and creation of an -empty ALSA sound device. - -Signed-off-by: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Link: https://lore.kernel.org/r/20210302164709.3142702-3-anton.yakovlev@opensynergy.com -Signed-off-by: Takashi Iwai <tiwai@suse.de> -Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> ---- - MAINTAINERS | 9 + - include/uapi/linux/virtio_snd.h | 334 ++++++++++++++++++++++++++++++++ - sound/Kconfig | 2 + - sound/Makefile | 3 +- - sound/virtio/Kconfig | 10 + - sound/virtio/Makefile | 7 + - sound/virtio/virtio_card.c | 324 +++++++++++++++++++++++++++++++ - sound/virtio/virtio_card.h | 65 +++++++ - 8 files changed, 753 insertions(+), 1 deletion(-) - create mode 100644 include/uapi/linux/virtio_snd.h - create mode 100644 sound/virtio/Kconfig - create mode 100644 sound/virtio/Makefile - create mode 100644 sound/virtio/virtio_card.c - create mode 100644 sound/virtio/virtio_card.h - -diff --git a/MAINTAINERS b/MAINTAINERS -index 407ae5c24566..49772b741967 100644 ---- a/MAINTAINERS -+++ b/MAINTAINERS -@@ -18670,6 +18670,15 @@ 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@opensynergy.com> -+M: "Michael S. Tsirkin" <mst@redhat.com> -+L: virtualization@lists.linux-foundation.org -+L: alsa-devel@alsa-project.org (moderated for non-subscribers) -+S: Maintained -+F: include/uapi/linux/virtio_snd.h -+F: sound/virtio/* -+ - VIRTUAL BOX GUEST DEVICE DRIVER - M: Hans de Goede <hdegoede@redhat.com> - M: Arnd Bergmann <arnd@arndb.de> -diff --git a/include/uapi/linux/virtio_snd.h b/include/uapi/linux/virtio_snd.h -new file mode 100644 -index 000000000000..dfe49547a7b0 ---- /dev/null -+++ b/include/uapi/linux/virtio_snd.h -@@ -0,0 +1,334 @@ -+/* SPDX-License-Identifier: BSD-3-Clause */ -+/* -+ * Copyright (C) 2021 OpenSynergy GmbH -+ */ -+#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 */ -diff --git a/sound/Kconfig b/sound/Kconfig -index 36785410fbe1..e56d96d2b11c 100644 ---- a/sound/Kconfig -+++ b/sound/Kconfig -@@ -99,6 +99,8 @@ source "sound/synth/Kconfig" - - source "sound/xen/Kconfig" - -+source "sound/virtio/Kconfig" -+ - endif # SND - - endif # !UML -diff --git a/sound/Makefile b/sound/Makefile -index 797ecdcd35e2..04ef04b1168f 100644 ---- a/sound/Makefile -+++ b/sound/Makefile -@@ -5,7 +5,8 @@ - obj-$(CONFIG_SOUND) += soundcore.o - obj-$(CONFIG_DMASOUND) += oss/dmasound/ - obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \ -- firewire/ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/ hda/ x86/ xen/ -+ firewire/ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/ hda/ x86/ xen/ \ -+ virtio/ - obj-$(CONFIG_SND_AOA) += aoa/ - - # This one must be compilable even if sound is configured out -diff --git a/sound/virtio/Kconfig b/sound/virtio/Kconfig -new file mode 100644 -index 000000000000..094cba24ee5b ---- /dev/null -+++ b/sound/virtio/Kconfig -@@ -0,0 +1,10 @@ -+# SPDX-License-Identifier: GPL-2.0+ -+# Sound card driver for virtio -+ -+config SND_VIRTIO -+ tristate "Virtio sound driver" -+ depends on VIRTIO -+ select SND_PCM -+ select SND_JACK -+ help -+ This is the virtual sound driver for virtio. Say Y or M. -diff --git a/sound/virtio/Makefile b/sound/virtio/Makefile -new file mode 100644 -index 000000000000..8c87ebb9982b ---- /dev/null -+++ b/sound/virtio/Makefile -@@ -0,0 +1,7 @@ -+# SPDX-License-Identifier: GPL-2.0+ -+ -+obj-$(CONFIG_SND_VIRTIO) += virtio_snd.o -+ -+virtio_snd-objs := \ -+ virtio_card.o -+ -diff --git a/sound/virtio/virtio_card.c b/sound/virtio/virtio_card.c -new file mode 100644 -index 000000000000..5a37056858e9 ---- /dev/null -+++ b/sound/virtio/virtio_card.c -@@ -0,0 +1,324 @@ -+// SPDX-License-Identifier: GPL-2.0+ -+/* -+ * virtio-snd: Virtio sound device -+ * Copyright (C) 2021 OpenSynergy GmbH -+ */ -+#include <linux/module.h> -+#include <linux/moduleparam.h> -+#include <linux/virtio_config.h> -+#include <sound/initval.h> -+#include <uapi/linux/virtio_ids.h> -+ -+#include "virtio_card.h" -+ -+static void virtsnd_remove(struct virtio_device *vdev); -+ -+/** -+ * virtsnd_event_send() - Add an event to the event queue. -+ * @vqueue: Underlying event virtqueue. -+ * @event: Event. -+ * @notify: Indicates whether or not to send a notification to the device. -+ * @gfp: Kernel flags for memory allocation. -+ * -+ * Context: Any context. -+ */ -+static void virtsnd_event_send(struct virtqueue *vqueue, -+ struct virtio_snd_event *event, bool notify, -+ gfp_t gfp) -+{ -+ struct scatterlist sg; -+ struct scatterlist *psgs[1] = { &sg }; -+ -+ /* reset event content */ -+ memset(event, 0, sizeof(*event)); -+ -+ sg_init_one(&sg, event, sizeof(*event)); -+ -+ if (virtqueue_add_sgs(vqueue, psgs, 0, 1, event, gfp) || !notify) -+ return; -+ -+ if (virtqueue_kick_prepare(vqueue)) -+ virtqueue_notify(vqueue); -+} -+ -+/** -+ * virtsnd_event_dispatch() - Dispatch an event from the device side. -+ * @snd: VirtIO sound device. -+ * @event: VirtIO sound event. -+ * -+ * Context: Any context. -+ */ -+static void virtsnd_event_dispatch(struct virtio_snd *snd, -+ struct virtio_snd_event *event) -+{ -+} -+ -+/** -+ * virtsnd_event_notify_cb() - Dispatch all reported events from the event queue. -+ * @vqueue: Underlying event virtqueue. -+ * -+ * This callback function is called upon a vring interrupt request from the -+ * device. -+ * -+ * Context: Interrupt context. -+ */ -+static void virtsnd_event_notify_cb(struct virtqueue *vqueue) -+{ -+ struct virtio_snd *snd = vqueue->vdev->priv; -+ struct virtio_snd_queue *queue = virtsnd_event_queue(snd); -+ struct virtio_snd_event *event; -+ u32 length; -+ unsigned long flags; -+ -+ spin_lock_irqsave(&queue->lock, flags); -+ do { -+ virtqueue_disable_cb(vqueue); -+ while ((event = virtqueue_get_buf(vqueue, &length))) { -+ virtsnd_event_dispatch(snd, event); -+ virtsnd_event_send(vqueue, event, true, GFP_ATOMIC); -+ } -+ if (unlikely(virtqueue_is_broken(vqueue))) -+ break; -+ } while (!virtqueue_enable_cb(vqueue)); -+ spin_unlock_irqrestore(&queue->lock, flags); -+} -+ -+/** -+ * virtsnd_find_vqs() - Enumerate and initialize all virtqueues. -+ * @snd: VirtIO sound device. -+ * -+ * After calling this function, the event queue is disabled. -+ * -+ * Context: Any context. -+ * Return: 0 on success, -errno on failure. -+ */ -+static int virtsnd_find_vqs(struct virtio_snd *snd) -+{ -+ struct virtio_device *vdev = snd->vdev; -+ static vq_callback_t *callbacks[VIRTIO_SND_VQ_MAX] = { -+ [VIRTIO_SND_VQ_EVENT] = virtsnd_event_notify_cb -+ }; -+ static const char *names[VIRTIO_SND_VQ_MAX] = { -+ [VIRTIO_SND_VQ_EVENT] = "virtsnd-event" -+ }; -+ struct virtqueue *vqs[VIRTIO_SND_VQ_MAX] = { 0 }; -+ unsigned int i; -+ unsigned int n; -+ int rc; -+ -+ rc = virtio_find_vqs(vdev, VIRTIO_SND_VQ_MAX, vqs, callbacks, names, -+ NULL); -+ if (rc) { -+ dev_err(&vdev->dev, "failed to initialize virtqueues\n"); -+ return rc; -+ } -+ -+ for (i = 0; i < VIRTIO_SND_VQ_MAX; ++i) -+ snd->queues[i].vqueue = vqs[i]; -+ -+ /* Allocate events and populate the event queue */ -+ virtqueue_disable_cb(vqs[VIRTIO_SND_VQ_EVENT]); -+ -+ n = virtqueue_get_vring_size(vqs[VIRTIO_SND_VQ_EVENT]); -+ -+ snd->event_msgs = kmalloc_array(n, sizeof(*snd->event_msgs), -+ GFP_KERNEL); -+ if (!snd->event_msgs) -+ return -ENOMEM; -+ -+ for (i = 0; i < n; ++i) -+ virtsnd_event_send(vqs[VIRTIO_SND_VQ_EVENT], -+ &snd->event_msgs[i], false, GFP_KERNEL); -+ -+ return 0; -+} -+ -+/** -+ * virtsnd_enable_event_vq() - Enable the event virtqueue. -+ * @snd: VirtIO sound device. -+ * -+ * Context: Any context. -+ */ -+static void virtsnd_enable_event_vq(struct virtio_snd *snd) -+{ -+ struct virtio_snd_queue *queue = virtsnd_event_queue(snd); -+ -+ if (!virtqueue_enable_cb(queue->vqueue)) -+ virtsnd_event_notify_cb(queue->vqueue); -+} -+ -+/** -+ * virtsnd_disable_event_vq() - Disable the event virtqueue. -+ * @snd: VirtIO sound device. -+ * -+ * Context: Any context. -+ */ -+static void virtsnd_disable_event_vq(struct virtio_snd *snd) -+{ -+ struct virtio_snd_queue *queue = virtsnd_event_queue(snd); -+ struct virtio_snd_event *event; -+ u32 length; -+ unsigned long flags; -+ -+ if (queue->vqueue) { -+ spin_lock_irqsave(&queue->lock, flags); -+ virtqueue_disable_cb(queue->vqueue); -+ while ((event = virtqueue_get_buf(queue->vqueue, &length))) -+ virtsnd_event_dispatch(snd, event); -+ spin_unlock_irqrestore(&queue->lock, flags); -+ } -+} -+ -+/** -+ * virtsnd_build_devs() - Read configuration and build ALSA devices. -+ * @snd: VirtIO sound device. -+ * -+ * Context: Any context that permits to sleep. -+ * Return: 0 on success, -errno on failure. -+ */ -+static int virtsnd_build_devs(struct virtio_snd *snd) -+{ -+ struct virtio_device *vdev = snd->vdev; -+ struct device *dev = &vdev->dev; -+ int rc; -+ -+ rc = snd_card_new(dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, -+ THIS_MODULE, 0, &snd->card); -+ if (rc < 0) -+ return rc; -+ -+ snd->card->private_data = snd; -+ -+ strscpy(snd->card->driver, VIRTIO_SND_CARD_DRIVER, -+ sizeof(snd->card->driver)); -+ strscpy(snd->card->shortname, VIRTIO_SND_CARD_NAME, -+ sizeof(snd->card->shortname)); -+ if (dev->parent->bus) -+ snprintf(snd->card->longname, sizeof(snd->card->longname), -+ VIRTIO_SND_CARD_NAME " at %s/%s/%s", -+ dev->parent->bus->name, dev_name(dev->parent), -+ dev_name(dev)); -+ else -+ snprintf(snd->card->longname, sizeof(snd->card->longname), -+ VIRTIO_SND_CARD_NAME " at %s/%s", -+ dev_name(dev->parent), dev_name(dev)); -+ -+ return snd_card_register(snd->card); -+} -+ -+/** -+ * virtsnd_validate() - Validate if the device can be started. -+ * @vdev: VirtIO parent device. -+ * -+ * Context: Any context. -+ * Return: 0 on success, -EINVAL on failure. -+ */ -+static int virtsnd_validate(struct virtio_device *vdev) -+{ -+ if (!vdev->config->get) { -+ dev_err(&vdev->dev, "configuration access disabled\n"); -+ return -EINVAL; -+ } -+ -+ if (!virtio_has_feature(vdev, VIRTIO_F_VERSION_1)) { -+ dev_err(&vdev->dev, -+ "device does not comply with spec version 1.x\n"); -+ return -EINVAL; -+ } -+ -+ return 0; -+} -+ -+/** -+ * virtsnd_probe() - Create and initialize the device. -+ * @vdev: VirtIO parent device. -+ * -+ * Context: Any context that permits to sleep. -+ * Return: 0 on success, -errno on failure. -+ */ -+static int virtsnd_probe(struct virtio_device *vdev) -+{ -+ struct virtio_snd *snd; -+ unsigned int i; -+ int rc; -+ -+ snd = devm_kzalloc(&vdev->dev, sizeof(*snd), GFP_KERNEL); -+ if (!snd) -+ return -ENOMEM; -+ -+ snd->vdev = vdev; -+ -+ vdev->priv = snd; -+ -+ for (i = 0; i < VIRTIO_SND_VQ_MAX; ++i) -+ spin_lock_init(&snd->queues[i].lock); -+ -+ rc = virtsnd_find_vqs(snd); -+ if (rc) -+ goto on_exit; -+ -+ virtio_device_ready(vdev); -+ -+ rc = virtsnd_build_devs(snd); -+ if (rc) -+ goto on_exit; -+ -+ virtsnd_enable_event_vq(snd); -+ -+on_exit: -+ if (rc) -+ virtsnd_remove(vdev); -+ -+ return rc; -+} -+ -+/** -+ * virtsnd_remove() - Remove VirtIO and ALSA devices. -+ * @vdev: VirtIO parent device. -+ * -+ * Context: Any context that permits to sleep. -+ */ -+static void virtsnd_remove(struct virtio_device *vdev) -+{ -+ struct virtio_snd *snd = vdev->priv; -+ -+ virtsnd_disable_event_vq(snd); -+ -+ if (snd->card) -+ snd_card_free(snd->card); -+ -+ vdev->config->del_vqs(vdev); -+ vdev->config->reset(vdev); -+ -+ kfree(snd->event_msgs); -+} -+ -+static const struct virtio_device_id id_table[] = { -+ { VIRTIO_ID_SOUND, VIRTIO_DEV_ANY_ID }, -+ { 0 }, -+}; -+ -+static struct virtio_driver virtsnd_driver = { -+ .driver.name = KBUILD_MODNAME, -+ .driver.owner = THIS_MODULE, -+ .id_table = id_table, -+ .validate = virtsnd_validate, -+ .probe = virtsnd_probe, -+ .remove = virtsnd_remove, -+}; -+ -+static int __init init(void) -+{ -+ return register_virtio_driver(&virtsnd_driver); -+} -+module_init(init); -+ -+static void __exit fini(void) -+{ -+ unregister_virtio_driver(&virtsnd_driver); -+} -+module_exit(fini); -+ -+MODULE_DEVICE_TABLE(virtio, id_table); -+MODULE_DESCRIPTION("Virtio sound card driver"); -+MODULE_LICENSE("GPL"); -diff --git a/sound/virtio/virtio_card.h b/sound/virtio/virtio_card.h -new file mode 100644 -index 000000000000..b903b1b12e90 ---- /dev/null -+++ b/sound/virtio/virtio_card.h -@@ -0,0 +1,65 @@ -+/* SPDX-License-Identifier: GPL-2.0+ */ -+/* -+ * virtio-snd: Virtio sound device -+ * Copyright (C) 2021 OpenSynergy GmbH -+ */ -+#ifndef VIRTIO_SND_CARD_H -+#define VIRTIO_SND_CARD_H -+ -+#include <linux/slab.h> -+#include <linux/virtio.h> -+#include <sound/core.h> -+#include <uapi/linux/virtio_snd.h> -+ -+#define VIRTIO_SND_CARD_DRIVER "virtio-snd" -+#define VIRTIO_SND_CARD_NAME "VirtIO SoundCard" -+ -+/** -+ * struct virtio_snd_queue - Virtqueue wrapper structure. -+ * @lock: Used to synchronize access to a virtqueue. -+ * @vqueue: Underlying virtqueue. -+ */ -+struct virtio_snd_queue { -+ spinlock_t lock; -+ struct virtqueue *vqueue; -+}; -+ -+/** -+ * struct virtio_snd - VirtIO sound card device. -+ * @vdev: Underlying virtio device. -+ * @queues: Virtqueue wrappers. -+ * @card: ALSA sound card. -+ * @event_msgs: Device events. -+ */ -+struct virtio_snd { -+ struct virtio_device *vdev; -+ struct virtio_snd_queue queues[VIRTIO_SND_VQ_MAX]; -+ struct snd_card *card; -+ struct virtio_snd_event *event_msgs; -+}; -+ -+static inline struct virtio_snd_queue * -+virtsnd_control_queue(struct virtio_snd *snd) -+{ -+ return &snd->queues[VIRTIO_SND_VQ_CONTROL]; -+} -+ -+static inline struct virtio_snd_queue * -+virtsnd_event_queue(struct virtio_snd *snd) -+{ -+ return &snd->queues[VIRTIO_SND_VQ_EVENT]; -+} -+ -+static inline struct virtio_snd_queue * -+virtsnd_tx_queue(struct virtio_snd *snd) -+{ -+ return &snd->queues[VIRTIO_SND_VQ_TX]; -+} -+ -+static inline struct virtio_snd_queue * -+virtsnd_rx_queue(struct virtio_snd *snd) -+{ -+ return &snd->queues[VIRTIO_SND_VQ_RX]; -+} -+ -+#endif /* VIRTIO_SND_CARD_H */ diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0003-ALSA-virtio-handling-control-messages.patch b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0003-ALSA-virtio-handling-control-messages.patch deleted file mode 100644 index 2ee988a4a..000000000 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0003-ALSA-virtio-handling-control-messages.patch +++ /dev/null @@ -1,528 +0,0 @@ -From d4c8a3a4b9de5a25b6963f3ae1b8a5cb32081de5 Mon Sep 17 00:00:00 2001 -From: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Date: Tue, 2 Mar 2021 17:47:03 +0100 -Subject: [PATCH] ALSA: virtio: handling control messages - -The control queue can be used by different parts of the driver to send -commands to the device. Control messages can be either synchronous or -asynchronous. The lifetime of a message is controlled by a reference -count. - -Introduce a module parameter to set the message completion timeout: - msg_timeout_ms [=1000] - -Signed-off-by: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Link: https://lore.kernel.org/r/20210302164709.3142702-4-anton.yakovlev@opensynergy.com -Signed-off-by: Takashi Iwai <tiwai@suse.de> -Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> ---- - sound/virtio/Makefile | 3 +- - sound/virtio/virtio_card.c | 13 ++ - sound/virtio/virtio_card.h | 7 + - sound/virtio/virtio_ctl_msg.c | 310 ++++++++++++++++++++++++++++++++++ - sound/virtio/virtio_ctl_msg.h | 78 +++++++++ - 5 files changed, 410 insertions(+), 1 deletion(-) - create mode 100644 sound/virtio/virtio_ctl_msg.c - create mode 100644 sound/virtio/virtio_ctl_msg.h - -diff --git a/sound/virtio/Makefile b/sound/virtio/Makefile -index 8c87ebb9982b..dc551e637441 100644 ---- a/sound/virtio/Makefile -+++ b/sound/virtio/Makefile -@@ -3,5 +3,6 @@ - obj-$(CONFIG_SND_VIRTIO) += virtio_snd.o - - virtio_snd-objs := \ -- virtio_card.o -+ virtio_card.o \ -+ virtio_ctl_msg.o - -diff --git a/sound/virtio/virtio_card.c b/sound/virtio/virtio_card.c -index 5a37056858e9..b757b2444078 100644 ---- a/sound/virtio/virtio_card.c -+++ b/sound/virtio/virtio_card.c -@@ -11,6 +11,10 @@ - - #include "virtio_card.h" - -+u32 virtsnd_msg_timeout_ms = MSEC_PER_SEC; -+module_param_named(msg_timeout_ms, virtsnd_msg_timeout_ms, uint, 0644); -+MODULE_PARM_DESC(msg_timeout_ms, "Message completion timeout in milliseconds"); -+ - static void virtsnd_remove(struct virtio_device *vdev); - - /** -@@ -96,9 +100,11 @@ static int virtsnd_find_vqs(struct virtio_snd *snd) - { - struct virtio_device *vdev = snd->vdev; - static vq_callback_t *callbacks[VIRTIO_SND_VQ_MAX] = { -+ [VIRTIO_SND_VQ_CONTROL] = virtsnd_ctl_notify_cb, - [VIRTIO_SND_VQ_EVENT] = virtsnd_event_notify_cb - }; - static const char *names[VIRTIO_SND_VQ_MAX] = { -+ [VIRTIO_SND_VQ_CONTROL] = "virtsnd-ctl", - [VIRTIO_SND_VQ_EVENT] = "virtsnd-event" - }; - struct virtqueue *vqs[VIRTIO_SND_VQ_MAX] = { 0 }; -@@ -226,6 +232,11 @@ static int virtsnd_validate(struct virtio_device *vdev) - return -EINVAL; - } - -+ if (!virtsnd_msg_timeout_ms) { -+ dev_err(&vdev->dev, "msg_timeout_ms value cannot be zero\n"); -+ return -EINVAL; -+ } -+ - return 0; - } - -@@ -247,6 +258,7 @@ static int virtsnd_probe(struct virtio_device *vdev) - return -ENOMEM; - - snd->vdev = vdev; -+ INIT_LIST_HEAD(&snd->ctl_msgs); - - vdev->priv = snd; - -@@ -283,6 +295,7 @@ static void virtsnd_remove(struct virtio_device *vdev) - struct virtio_snd *snd = vdev->priv; - - virtsnd_disable_event_vq(snd); -+ virtsnd_ctl_msg_cancel_all(snd); - - if (snd->card) - snd_card_free(snd->card); -diff --git a/sound/virtio/virtio_card.h b/sound/virtio/virtio_card.h -index b903b1b12e90..1e76eeff160f 100644 ---- a/sound/virtio/virtio_card.h -+++ b/sound/virtio/virtio_card.h -@@ -11,6 +11,8 @@ - #include <sound/core.h> - #include <uapi/linux/virtio_snd.h> - -+#include "virtio_ctl_msg.h" -+ - #define VIRTIO_SND_CARD_DRIVER "virtio-snd" - #define VIRTIO_SND_CARD_NAME "VirtIO SoundCard" - -@@ -29,15 +31,20 @@ struct virtio_snd_queue { - * @vdev: Underlying virtio device. - * @queues: Virtqueue wrappers. - * @card: ALSA sound card. -+ * @ctl_msgs: Pending control request list. - * @event_msgs: Device events. - */ - struct virtio_snd { - struct virtio_device *vdev; - struct virtio_snd_queue queues[VIRTIO_SND_VQ_MAX]; - struct snd_card *card; -+ struct list_head ctl_msgs; - struct virtio_snd_event *event_msgs; - }; - -+/* Message completion timeout in milliseconds (module parameter). */ -+extern u32 virtsnd_msg_timeout_ms; -+ - static inline struct virtio_snd_queue * - virtsnd_control_queue(struct virtio_snd *snd) - { -diff --git a/sound/virtio/virtio_ctl_msg.c b/sound/virtio/virtio_ctl_msg.c -new file mode 100644 -index 000000000000..26ff7e7cc041 ---- /dev/null -+++ b/sound/virtio/virtio_ctl_msg.c -@@ -0,0 +1,310 @@ -+// SPDX-License-Identifier: GPL-2.0+ -+/* -+ * virtio-snd: Virtio sound device -+ * Copyright (C) 2021 OpenSynergy GmbH -+ */ -+#include <linux/moduleparam.h> -+#include <linux/virtio_config.h> -+ -+#include "virtio_card.h" -+ -+/** -+ * struct virtio_snd_msg - Control message. -+ * @sg_request: Scattergather list containing a device request (header). -+ * @sg_response: Scattergather list containing a device response (status). -+ * @list: Pending message list entry. -+ * @notify: Request completed notification. -+ * @ref_count: Reference count used to manage a message lifetime. -+ */ -+struct virtio_snd_msg { -+ struct scatterlist sg_request; -+ struct scatterlist sg_response; -+ struct list_head list; -+ struct completion notify; -+ refcount_t ref_count; -+}; -+ -+/** -+ * virtsnd_ctl_msg_ref() - Increment reference counter for the message. -+ * @msg: Control message. -+ * -+ * Context: Any context. -+ */ -+void virtsnd_ctl_msg_ref(struct virtio_snd_msg *msg) -+{ -+ refcount_inc(&msg->ref_count); -+} -+ -+/** -+ * virtsnd_ctl_msg_unref() - Decrement reference counter for the message. -+ * @msg: Control message. -+ * -+ * The message will be freed when the ref_count value is 0. -+ * -+ * Context: Any context. -+ */ -+void virtsnd_ctl_msg_unref(struct virtio_snd_msg *msg) -+{ -+ if (refcount_dec_and_test(&msg->ref_count)) -+ kfree(msg); -+} -+ -+/** -+ * virtsnd_ctl_msg_request() - Get a pointer to the request header. -+ * @msg: Control message. -+ * -+ * Context: Any context. -+ */ -+void *virtsnd_ctl_msg_request(struct virtio_snd_msg *msg) -+{ -+ return sg_virt(&msg->sg_request); -+} -+ -+/** -+ * virtsnd_ctl_msg_request() - Get a pointer to the response header. -+ * @msg: Control message. -+ * -+ * Context: Any context. -+ */ -+void *virtsnd_ctl_msg_response(struct virtio_snd_msg *msg) -+{ -+ return sg_virt(&msg->sg_response); -+} -+ -+/** -+ * virtsnd_ctl_msg_alloc() - Allocate and initialize a control message. -+ * @request_size: Size of request header. -+ * @response_size: Size of response header. -+ * @gfp: Kernel flags for memory allocation. -+ * -+ * The message will be automatically freed when the ref_count value is 0. -+ * -+ * Context: Any context. May sleep if @gfp flags permit. -+ * Return: Allocated message on success, NULL on failure. -+ */ -+struct virtio_snd_msg *virtsnd_ctl_msg_alloc(size_t request_size, -+ size_t response_size, gfp_t gfp) -+{ -+ struct virtio_snd_msg *msg; -+ -+ if (!request_size || !response_size) -+ return NULL; -+ -+ msg = kzalloc(sizeof(*msg) + request_size + response_size, gfp); -+ if (!msg) -+ return NULL; -+ -+ sg_init_one(&msg->sg_request, (u8 *)msg + sizeof(*msg), request_size); -+ sg_init_one(&msg->sg_response, (u8 *)msg + sizeof(*msg) + request_size, -+ response_size); -+ -+ INIT_LIST_HEAD(&msg->list); -+ init_completion(&msg->notify); -+ /* This reference is dropped in virtsnd_ctl_msg_complete(). */ -+ refcount_set(&msg->ref_count, 1); -+ -+ return msg; -+} -+ -+/** -+ * virtsnd_ctl_msg_send() - Send a control message. -+ * @snd: VirtIO sound device. -+ * @msg: Control message. -+ * @out_sgs: Additional sg-list to attach to the request header (may be NULL). -+ * @in_sgs: Additional sg-list to attach to the response header (may be NULL). -+ * @nowait: Flag indicating whether to wait for completion. -+ * -+ * Context: Any context. Takes and releases the control queue spinlock. -+ * May sleep if @nowait is false. -+ * Return: 0 on success, -errno on failure. -+ */ -+int virtsnd_ctl_msg_send(struct virtio_snd *snd, struct virtio_snd_msg *msg, -+ struct scatterlist *out_sgs, -+ struct scatterlist *in_sgs, bool nowait) -+{ -+ struct virtio_device *vdev = snd->vdev; -+ struct virtio_snd_queue *queue = virtsnd_control_queue(snd); -+ unsigned int js = msecs_to_jiffies(virtsnd_msg_timeout_ms); -+ struct virtio_snd_hdr *request = virtsnd_ctl_msg_request(msg); -+ struct virtio_snd_hdr *response = virtsnd_ctl_msg_response(msg); -+ unsigned int nouts = 0; -+ unsigned int nins = 0; -+ struct scatterlist *psgs[4]; -+ bool notify = false; -+ unsigned long flags; -+ int rc; -+ -+ virtsnd_ctl_msg_ref(msg); -+ -+ /* Set the default status in case the message was canceled. */ -+ response->code = cpu_to_le32(VIRTIO_SND_S_IO_ERR); -+ -+ psgs[nouts++] = &msg->sg_request; -+ if (out_sgs) -+ psgs[nouts++] = out_sgs; -+ -+ psgs[nouts + nins++] = &msg->sg_response; -+ if (in_sgs) -+ psgs[nouts + nins++] = in_sgs; -+ -+ spin_lock_irqsave(&queue->lock, flags); -+ rc = virtqueue_add_sgs(queue->vqueue, psgs, nouts, nins, msg, -+ GFP_ATOMIC); -+ if (!rc) { -+ notify = virtqueue_kick_prepare(queue->vqueue); -+ -+ list_add_tail(&msg->list, &snd->ctl_msgs); -+ } -+ spin_unlock_irqrestore(&queue->lock, flags); -+ -+ if (rc) { -+ dev_err(&vdev->dev, "failed to send control message (0x%08x)\n", -+ le32_to_cpu(request->code)); -+ -+ /* -+ * Since in this case virtsnd_ctl_msg_complete() will not be -+ * called, it is necessary to decrement the reference count. -+ */ -+ virtsnd_ctl_msg_unref(msg); -+ -+ goto on_exit; -+ } -+ -+ if (notify) -+ virtqueue_notify(queue->vqueue); -+ -+ if (nowait) -+ goto on_exit; -+ -+ rc = wait_for_completion_interruptible_timeout(&msg->notify, js); -+ if (rc <= 0) { -+ if (!rc) { -+ dev_err(&vdev->dev, -+ "control message (0x%08x) timeout\n", -+ le32_to_cpu(request->code)); -+ rc = -ETIMEDOUT; -+ } -+ -+ goto on_exit; -+ } -+ -+ switch (le32_to_cpu(response->code)) { -+ case VIRTIO_SND_S_OK: -+ rc = 0; -+ break; -+ case VIRTIO_SND_S_NOT_SUPP: -+ rc = -EOPNOTSUPP; -+ break; -+ case VIRTIO_SND_S_IO_ERR: -+ rc = -EIO; -+ break; -+ default: -+ rc = -EINVAL; -+ break; -+ } -+ -+on_exit: -+ virtsnd_ctl_msg_unref(msg); -+ -+ return rc; -+} -+ -+/** -+ * virtsnd_ctl_msg_complete() - Complete a control message. -+ * @msg: Control message. -+ * -+ * Context: Any context. Expects the control queue spinlock to be held by -+ * caller. -+ */ -+void virtsnd_ctl_msg_complete(struct virtio_snd_msg *msg) -+{ -+ list_del(&msg->list); -+ complete(&msg->notify); -+ -+ virtsnd_ctl_msg_unref(msg); -+} -+ -+/** -+ * virtsnd_ctl_msg_cancel_all() - Cancel all pending control messages. -+ * @snd: VirtIO sound device. -+ * -+ * Context: Any context. -+ */ -+void virtsnd_ctl_msg_cancel_all(struct virtio_snd *snd) -+{ -+ struct virtio_snd_queue *queue = virtsnd_control_queue(snd); -+ unsigned long flags; -+ -+ spin_lock_irqsave(&queue->lock, flags); -+ while (!list_empty(&snd->ctl_msgs)) { -+ struct virtio_snd_msg *msg = -+ list_first_entry(&snd->ctl_msgs, struct virtio_snd_msg, -+ list); -+ -+ virtsnd_ctl_msg_complete(msg); -+ } -+ spin_unlock_irqrestore(&queue->lock, flags); -+} -+ -+/** -+ * virtsnd_ctl_query_info() - Query the item configuration from the device. -+ * @snd: VirtIO sound device. -+ * @command: Control request code (VIRTIO_SND_R_XXX_INFO). -+ * @start_id: Item start identifier. -+ * @count: Item count to query. -+ * @size: Item information size in bytes. -+ * @info: Buffer for storing item information. -+ * -+ * Context: Any context that permits to sleep. -+ * Return: 0 on success, -errno on failure. -+ */ -+int virtsnd_ctl_query_info(struct virtio_snd *snd, int command, int start_id, -+ int count, size_t size, void *info) -+{ -+ struct virtio_snd_msg *msg; -+ struct virtio_snd_query_info *query; -+ struct scatterlist sg; -+ -+ msg = virtsnd_ctl_msg_alloc(sizeof(*query), -+ sizeof(struct virtio_snd_hdr), GFP_KERNEL); -+ if (!msg) -+ return -ENOMEM; -+ -+ query = virtsnd_ctl_msg_request(msg); -+ query->hdr.code = cpu_to_le32(command); -+ query->start_id = cpu_to_le32(start_id); -+ query->count = cpu_to_le32(count); -+ query->size = cpu_to_le32(size); -+ -+ sg_init_one(&sg, info, count * size); -+ -+ return virtsnd_ctl_msg_send(snd, msg, NULL, &sg, false); -+} -+ -+/** -+ * virtsnd_ctl_notify_cb() - Process all completed control messages. -+ * @vqueue: Underlying control virtqueue. -+ * -+ * This callback function is called upon a vring interrupt request from the -+ * device. -+ * -+ * Context: Interrupt context. Takes and releases the control queue spinlock. -+ */ -+void virtsnd_ctl_notify_cb(struct virtqueue *vqueue) -+{ -+ struct virtio_snd *snd = vqueue->vdev->priv; -+ struct virtio_snd_queue *queue = virtsnd_control_queue(snd); -+ struct virtio_snd_msg *msg; -+ u32 length; -+ unsigned long flags; -+ -+ spin_lock_irqsave(&queue->lock, flags); -+ do { -+ virtqueue_disable_cb(vqueue); -+ while ((msg = virtqueue_get_buf(vqueue, &length))) -+ virtsnd_ctl_msg_complete(msg); -+ if (unlikely(virtqueue_is_broken(vqueue))) -+ break; -+ } while (!virtqueue_enable_cb(vqueue)); -+ spin_unlock_irqrestore(&queue->lock, flags); -+} -diff --git a/sound/virtio/virtio_ctl_msg.h b/sound/virtio/virtio_ctl_msg.h -new file mode 100644 -index 000000000000..7f4db044f28e ---- /dev/null -+++ b/sound/virtio/virtio_ctl_msg.h -@@ -0,0 +1,78 @@ -+/* SPDX-License-Identifier: GPL-2.0+ */ -+/* -+ * virtio-snd: Virtio sound device -+ * Copyright (C) 2021 OpenSynergy GmbH -+ */ -+#ifndef VIRTIO_SND_MSG_H -+#define VIRTIO_SND_MSG_H -+ -+#include <linux/atomic.h> -+#include <linux/virtio.h> -+ -+struct virtio_snd; -+struct virtio_snd_msg; -+ -+void virtsnd_ctl_msg_ref(struct virtio_snd_msg *msg); -+ -+void virtsnd_ctl_msg_unref(struct virtio_snd_msg *msg); -+ -+void *virtsnd_ctl_msg_request(struct virtio_snd_msg *msg); -+ -+void *virtsnd_ctl_msg_response(struct virtio_snd_msg *msg); -+ -+struct virtio_snd_msg *virtsnd_ctl_msg_alloc(size_t request_size, -+ size_t response_size, gfp_t gfp); -+ -+int virtsnd_ctl_msg_send(struct virtio_snd *snd, struct virtio_snd_msg *msg, -+ struct scatterlist *out_sgs, -+ struct scatterlist *in_sgs, bool nowait); -+ -+/** -+ * virtsnd_ctl_msg_send_sync() - Simplified sending of synchronous message. -+ * @snd: VirtIO sound device. -+ * @msg: Control message. -+ * -+ * After returning from this function, the message will be deleted. If message -+ * content is still needed, the caller must additionally to -+ * virtsnd_ctl_msg_ref/unref() it. -+ * -+ * The msg_timeout_ms module parameter defines the message completion timeout. -+ * If the message is not completed within this time, the function will return an -+ * error. -+ * -+ * Context: Any context that permits to sleep. -+ * Return: 0 on success, -errno on failure. -+ * -+ * The return value is a message status code (VIRTIO_SND_S_XXX) converted to an -+ * appropriate -errno value. -+ */ -+static inline int virtsnd_ctl_msg_send_sync(struct virtio_snd *snd, -+ struct virtio_snd_msg *msg) -+{ -+ return virtsnd_ctl_msg_send(snd, msg, NULL, NULL, false); -+} -+ -+/** -+ * virtsnd_ctl_msg_send_async() - Simplified sending of asynchronous message. -+ * @snd: VirtIO sound device. -+ * @msg: Control message. -+ * -+ * Context: Any context. -+ * Return: 0 on success, -errno on failure. -+ */ -+static inline int virtsnd_ctl_msg_send_async(struct virtio_snd *snd, -+ struct virtio_snd_msg *msg) -+{ -+ return virtsnd_ctl_msg_send(snd, msg, NULL, NULL, true); -+} -+ -+void virtsnd_ctl_msg_cancel_all(struct virtio_snd *snd); -+ -+void virtsnd_ctl_msg_complete(struct virtio_snd_msg *msg); -+ -+int virtsnd_ctl_query_info(struct virtio_snd *snd, int command, int start_id, -+ int count, size_t size, void *info); -+ -+void virtsnd_ctl_notify_cb(struct virtqueue *vqueue); -+ -+#endif /* VIRTIO_SND_MSG_H */ diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0004-ALSA-virtio-build-PCM-devices-and-substream-hardware.patch b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0004-ALSA-virtio-build-PCM-devices-and-substream-hardware.patch deleted file mode 100644 index 27ae9a865..000000000 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0004-ALSA-virtio-build-PCM-devices-and-substream-hardware.patch +++ /dev/null @@ -1,703 +0,0 @@ -From 12e4e501f9662a02e61acb5966fdceeffb0ff16d Mon Sep 17 00:00:00 2001 -From: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Date: Tue, 2 Mar 2021 17:47:04 +0100 -Subject: [PATCH] ALSA: virtio: build PCM devices and substream hardware - descriptors - -Like the HDA specification, the virtio sound device specification links -PCM substreams, jacks and PCM channel maps into functional groups. For -each discovered group, a PCM device is created, the number of which -coincides with the group number. - -Introduce the module parameters for setting the hardware buffer -parameters: - pcm_buffer_ms [=160] - pcm_periods_min [=2] - pcm_periods_max [=16] - pcm_period_ms_min [=10] - pcm_period_ms_max [=80] - -Signed-off-by: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Link: https://lore.kernel.org/r/20210302164709.3142702-5-anton.yakovlev@opensynergy.com -Signed-off-by: Takashi Iwai <tiwai@suse.de> -Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> ---- - sound/virtio/Makefile | 3 +- - sound/virtio/virtio_card.c | 18 ++ - sound/virtio/virtio_card.h | 10 + - sound/virtio/virtio_pcm.c | 479 +++++++++++++++++++++++++++++++++++++ - sound/virtio/virtio_pcm.h | 72 ++++++ - 5 files changed, 581 insertions(+), 1 deletion(-) - create mode 100644 sound/virtio/virtio_pcm.c - create mode 100644 sound/virtio/virtio_pcm.h - -diff --git a/sound/virtio/Makefile b/sound/virtio/Makefile -index dc551e637441..69162a545a41 100644 ---- a/sound/virtio/Makefile -+++ b/sound/virtio/Makefile -@@ -4,5 +4,6 @@ obj-$(CONFIG_SND_VIRTIO) += virtio_snd.o - - virtio_snd-objs := \ - virtio_card.o \ -- virtio_ctl_msg.o -+ virtio_ctl_msg.o \ -+ virtio_pcm.o - -diff --git a/sound/virtio/virtio_card.c b/sound/virtio/virtio_card.c -index b757b2444078..11c76ee311b7 100644 ---- a/sound/virtio/virtio_card.c -+++ b/sound/virtio/virtio_card.c -@@ -209,6 +209,16 @@ static int virtsnd_build_devs(struct virtio_snd *snd) - VIRTIO_SND_CARD_NAME " at %s/%s", - dev_name(dev->parent), dev_name(dev)); - -+ rc = virtsnd_pcm_parse_cfg(snd); -+ if (rc) -+ return rc; -+ -+ if (snd->nsubstreams) { -+ rc = virtsnd_pcm_build_devs(snd); -+ if (rc) -+ return rc; -+ } -+ - return snd_card_register(snd->card); - } - -@@ -237,6 +247,9 @@ static int virtsnd_validate(struct virtio_device *vdev) - return -EINVAL; - } - -+ if (virtsnd_pcm_validate(vdev)) -+ return -EINVAL; -+ - return 0; - } - -@@ -259,6 +272,7 @@ static int virtsnd_probe(struct virtio_device *vdev) - - snd->vdev = vdev; - INIT_LIST_HEAD(&snd->ctl_msgs); -+ INIT_LIST_HEAD(&snd->pcm_list); - - vdev->priv = snd; - -@@ -293,6 +307,7 @@ static int virtsnd_probe(struct virtio_device *vdev) - static void virtsnd_remove(struct virtio_device *vdev) - { - struct virtio_snd *snd = vdev->priv; -+ unsigned int i; - - virtsnd_disable_event_vq(snd); - virtsnd_ctl_msg_cancel_all(snd); -@@ -303,6 +318,9 @@ static void virtsnd_remove(struct virtio_device *vdev) - vdev->config->del_vqs(vdev); - vdev->config->reset(vdev); - -+ for (i = 0; snd->substreams && i < snd->nsubstreams; ++i) -+ cancel_work_sync(&snd->substreams[i].elapsed_period); -+ - kfree(snd->event_msgs); - } - -diff --git a/sound/virtio/virtio_card.h b/sound/virtio/virtio_card.h -index 1e76eeff160f..77a1b7255370 100644 ---- a/sound/virtio/virtio_card.h -+++ b/sound/virtio/virtio_card.h -@@ -12,9 +12,13 @@ - #include <uapi/linux/virtio_snd.h> - - #include "virtio_ctl_msg.h" -+#include "virtio_pcm.h" - - #define VIRTIO_SND_CARD_DRIVER "virtio-snd" - #define VIRTIO_SND_CARD_NAME "VirtIO SoundCard" -+#define VIRTIO_SND_PCM_NAME "VirtIO PCM" -+ -+struct virtio_pcm_substream; - - /** - * struct virtio_snd_queue - Virtqueue wrapper structure. -@@ -33,6 +37,9 @@ struct virtio_snd_queue { - * @card: ALSA sound card. - * @ctl_msgs: Pending control request list. - * @event_msgs: Device events. -+ * @pcm_list: VirtIO PCM device list. -+ * @substreams: VirtIO PCM substreams. -+ * @nsubstreams: Number of PCM substreams. - */ - struct virtio_snd { - struct virtio_device *vdev; -@@ -40,6 +47,9 @@ struct virtio_snd { - struct snd_card *card; - struct list_head ctl_msgs; - struct virtio_snd_event *event_msgs; -+ struct list_head pcm_list; -+ struct virtio_pcm_substream *substreams; -+ u32 nsubstreams; - }; - - /* Message completion timeout in milliseconds (module parameter). */ -diff --git a/sound/virtio/virtio_pcm.c b/sound/virtio/virtio_pcm.c -new file mode 100644 -index 000000000000..e16567e2e214 ---- /dev/null -+++ b/sound/virtio/virtio_pcm.c -@@ -0,0 +1,479 @@ -+// SPDX-License-Identifier: GPL-2.0+ -+/* -+ * virtio-snd: Virtio sound device -+ * Copyright (C) 2021 OpenSynergy GmbH -+ */ -+#include <linux/moduleparam.h> -+#include <linux/virtio_config.h> -+ -+#include "virtio_card.h" -+ -+static u32 pcm_buffer_ms = 160; -+module_param(pcm_buffer_ms, uint, 0644); -+MODULE_PARM_DESC(pcm_buffer_ms, "PCM substream buffer time in milliseconds"); -+ -+static u32 pcm_periods_min = 2; -+module_param(pcm_periods_min, uint, 0644); -+MODULE_PARM_DESC(pcm_periods_min, "Minimum number of PCM periods"); -+ -+static u32 pcm_periods_max = 16; -+module_param(pcm_periods_max, uint, 0644); -+MODULE_PARM_DESC(pcm_periods_max, "Maximum number of PCM periods"); -+ -+static u32 pcm_period_ms_min = 10; -+module_param(pcm_period_ms_min, uint, 0644); -+MODULE_PARM_DESC(pcm_period_ms_min, "Minimum PCM period time in milliseconds"); -+ -+static u32 pcm_period_ms_max = 80; -+module_param(pcm_period_ms_max, uint, 0644); -+MODULE_PARM_DESC(pcm_period_ms_max, "Maximum PCM period time in milliseconds"); -+ -+/* Map for converting VirtIO format to ALSA format. */ -+static const snd_pcm_format_t g_v2a_format_map[] = { -+ [VIRTIO_SND_PCM_FMT_IMA_ADPCM] = SNDRV_PCM_FORMAT_IMA_ADPCM, -+ [VIRTIO_SND_PCM_FMT_MU_LAW] = SNDRV_PCM_FORMAT_MU_LAW, -+ [VIRTIO_SND_PCM_FMT_A_LAW] = SNDRV_PCM_FORMAT_A_LAW, -+ [VIRTIO_SND_PCM_FMT_S8] = SNDRV_PCM_FORMAT_S8, -+ [VIRTIO_SND_PCM_FMT_U8] = SNDRV_PCM_FORMAT_U8, -+ [VIRTIO_SND_PCM_FMT_S16] = SNDRV_PCM_FORMAT_S16_LE, -+ [VIRTIO_SND_PCM_FMT_U16] = SNDRV_PCM_FORMAT_U16_LE, -+ [VIRTIO_SND_PCM_FMT_S18_3] = SNDRV_PCM_FORMAT_S18_3LE, -+ [VIRTIO_SND_PCM_FMT_U18_3] = SNDRV_PCM_FORMAT_U18_3LE, -+ [VIRTIO_SND_PCM_FMT_S20_3] = SNDRV_PCM_FORMAT_S20_3LE, -+ [VIRTIO_SND_PCM_FMT_U20_3] = SNDRV_PCM_FORMAT_U20_3LE, -+ [VIRTIO_SND_PCM_FMT_S24_3] = SNDRV_PCM_FORMAT_S24_3LE, -+ [VIRTIO_SND_PCM_FMT_U24_3] = SNDRV_PCM_FORMAT_U24_3LE, -+ [VIRTIO_SND_PCM_FMT_S20] = SNDRV_PCM_FORMAT_S20_LE, -+ [VIRTIO_SND_PCM_FMT_U20] = SNDRV_PCM_FORMAT_U20_LE, -+ [VIRTIO_SND_PCM_FMT_S24] = SNDRV_PCM_FORMAT_S24_LE, -+ [VIRTIO_SND_PCM_FMT_U24] = SNDRV_PCM_FORMAT_U24_LE, -+ [VIRTIO_SND_PCM_FMT_S32] = SNDRV_PCM_FORMAT_S32_LE, -+ [VIRTIO_SND_PCM_FMT_U32] = SNDRV_PCM_FORMAT_U32_LE, -+ [VIRTIO_SND_PCM_FMT_FLOAT] = SNDRV_PCM_FORMAT_FLOAT_LE, -+ [VIRTIO_SND_PCM_FMT_FLOAT64] = SNDRV_PCM_FORMAT_FLOAT64_LE, -+ [VIRTIO_SND_PCM_FMT_DSD_U8] = SNDRV_PCM_FORMAT_DSD_U8, -+ [VIRTIO_SND_PCM_FMT_DSD_U16] = SNDRV_PCM_FORMAT_DSD_U16_LE, -+ [VIRTIO_SND_PCM_FMT_DSD_U32] = SNDRV_PCM_FORMAT_DSD_U32_LE, -+ [VIRTIO_SND_PCM_FMT_IEC958_SUBFRAME] = -+ SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE -+}; -+ -+/* Map for converting VirtIO frame rate to ALSA frame rate. */ -+struct virtsnd_v2a_rate { -+ unsigned int alsa_bit; -+ unsigned int rate; -+}; -+ -+static const struct virtsnd_v2a_rate g_v2a_rate_map[] = { -+ [VIRTIO_SND_PCM_RATE_5512] = { SNDRV_PCM_RATE_5512, 5512 }, -+ [VIRTIO_SND_PCM_RATE_8000] = { SNDRV_PCM_RATE_8000, 8000 }, -+ [VIRTIO_SND_PCM_RATE_11025] = { SNDRV_PCM_RATE_11025, 11025 }, -+ [VIRTIO_SND_PCM_RATE_16000] = { SNDRV_PCM_RATE_16000, 16000 }, -+ [VIRTIO_SND_PCM_RATE_22050] = { SNDRV_PCM_RATE_22050, 22050 }, -+ [VIRTIO_SND_PCM_RATE_32000] = { SNDRV_PCM_RATE_32000, 32000 }, -+ [VIRTIO_SND_PCM_RATE_44100] = { SNDRV_PCM_RATE_44100, 44100 }, -+ [VIRTIO_SND_PCM_RATE_48000] = { SNDRV_PCM_RATE_48000, 48000 }, -+ [VIRTIO_SND_PCM_RATE_64000] = { SNDRV_PCM_RATE_64000, 64000 }, -+ [VIRTIO_SND_PCM_RATE_88200] = { SNDRV_PCM_RATE_88200, 88200 }, -+ [VIRTIO_SND_PCM_RATE_96000] = { SNDRV_PCM_RATE_96000, 96000 }, -+ [VIRTIO_SND_PCM_RATE_176400] = { SNDRV_PCM_RATE_176400, 176400 }, -+ [VIRTIO_SND_PCM_RATE_192000] = { SNDRV_PCM_RATE_192000, 192000 } -+}; -+ -+/** -+ * virtsnd_pcm_build_hw() - Parse substream config and build HW descriptor. -+ * @vss: VirtIO substream. -+ * @info: VirtIO substream information entry. -+ * -+ * Context: Any context. -+ * Return: 0 on success, -EINVAL if configuration is invalid. -+ */ -+static int virtsnd_pcm_build_hw(struct virtio_pcm_substream *vss, -+ struct virtio_snd_pcm_info *info) -+{ -+ struct virtio_device *vdev = vss->snd->vdev; -+ unsigned int i; -+ u64 values; -+ size_t sample_max = 0; -+ size_t sample_min = 0; -+ -+ vss->features = le32_to_cpu(info->features); -+ -+ /* -+ * TODO: set SNDRV_PCM_INFO_{BATCH,BLOCK_TRANSFER} if device supports -+ * only message-based transport. -+ */ -+ vss->hw.info = -+ SNDRV_PCM_INFO_MMAP | -+ SNDRV_PCM_INFO_MMAP_VALID | -+ SNDRV_PCM_INFO_BATCH | -+ SNDRV_PCM_INFO_BLOCK_TRANSFER | -+ SNDRV_PCM_INFO_INTERLEAVED | -+ SNDRV_PCM_INFO_PAUSE; -+ -+ if (!info->channels_min || info->channels_min > info->channels_max) { -+ dev_err(&vdev->dev, -+ "SID %u: invalid channel range [%u %u]\n", -+ vss->sid, info->channels_min, info->channels_max); -+ return -EINVAL; -+ } -+ -+ vss->hw.channels_min = info->channels_min; -+ vss->hw.channels_max = info->channels_max; -+ -+ values = le64_to_cpu(info->formats); -+ -+ vss->hw.formats = 0; -+ -+ for (i = 0; i < ARRAY_SIZE(g_v2a_format_map); ++i) -+ if (values & (1ULL << i)) { -+ snd_pcm_format_t alsa_fmt = g_v2a_format_map[i]; -+ int bytes = snd_pcm_format_physical_width(alsa_fmt) / 8; -+ -+ if (!sample_min || sample_min > bytes) -+ sample_min = bytes; -+ -+ if (sample_max < bytes) -+ sample_max = bytes; -+ -+ vss->hw.formats |= pcm_format_to_bits(alsa_fmt); -+ } -+ -+ if (!vss->hw.formats) { -+ dev_err(&vdev->dev, -+ "SID %u: no supported PCM sample formats found\n", -+ vss->sid); -+ return -EINVAL; -+ } -+ -+ values = le64_to_cpu(info->rates); -+ -+ vss->hw.rates = 0; -+ -+ for (i = 0; i < ARRAY_SIZE(g_v2a_rate_map); ++i) -+ if (values & (1ULL << i)) { -+ if (!vss->hw.rate_min || -+ vss->hw.rate_min > g_v2a_rate_map[i].rate) -+ vss->hw.rate_min = g_v2a_rate_map[i].rate; -+ -+ if (vss->hw.rate_max < g_v2a_rate_map[i].rate) -+ vss->hw.rate_max = g_v2a_rate_map[i].rate; -+ -+ vss->hw.rates |= g_v2a_rate_map[i].alsa_bit; -+ } -+ -+ if (!vss->hw.rates) { -+ dev_err(&vdev->dev, -+ "SID %u: no supported PCM frame rates found\n", -+ vss->sid); -+ return -EINVAL; -+ } -+ -+ vss->hw.periods_min = pcm_periods_min; -+ vss->hw.periods_max = pcm_periods_max; -+ -+ /* -+ * We must ensure that there is enough space in the buffer to store -+ * pcm_buffer_ms ms for the combination (Cmax, Smax, Rmax), where: -+ * Cmax = maximum supported number of channels, -+ * Smax = maximum supported sample size in bytes, -+ * Rmax = maximum supported frame rate. -+ */ -+ vss->hw.buffer_bytes_max = -+ PAGE_ALIGN(sample_max * vss->hw.channels_max * pcm_buffer_ms * -+ (vss->hw.rate_max / MSEC_PER_SEC)); -+ -+ /* -+ * We must ensure that the minimum period size is enough to store -+ * pcm_period_ms_min ms for the combination (Cmin, Smin, Rmin), where: -+ * Cmin = minimum supported number of channels, -+ * Smin = minimum supported sample size in bytes, -+ * Rmin = minimum supported frame rate. -+ */ -+ vss->hw.period_bytes_min = -+ sample_min * vss->hw.channels_min * pcm_period_ms_min * -+ (vss->hw.rate_min / MSEC_PER_SEC); -+ -+ /* -+ * We must ensure that the maximum period size is enough to store -+ * pcm_period_ms_max ms for the combination (Cmax, Smax, Rmax). -+ */ -+ vss->hw.period_bytes_max = -+ sample_max * vss->hw.channels_max * pcm_period_ms_max * -+ (vss->hw.rate_max / MSEC_PER_SEC); -+ -+ return 0; -+} -+ -+/** -+ * virtsnd_pcm_find() - Find the PCM device for the specified node ID. -+ * @snd: VirtIO sound device. -+ * @nid: Function node ID. -+ * -+ * Context: Any context. -+ * Return: a pointer to the PCM device or ERR_PTR(-ENOENT). -+ */ -+struct virtio_pcm *virtsnd_pcm_find(struct virtio_snd *snd, u32 nid) -+{ -+ struct virtio_pcm *vpcm; -+ -+ list_for_each_entry(vpcm, &snd->pcm_list, list) -+ if (vpcm->nid == nid) -+ return vpcm; -+ -+ return ERR_PTR(-ENOENT); -+} -+ -+/** -+ * virtsnd_pcm_find_or_create() - Find or create the PCM device for the -+ * specified node ID. -+ * @snd: VirtIO sound device. -+ * @nid: Function node ID. -+ * -+ * Context: Any context that permits to sleep. -+ * Return: a pointer to the PCM device or ERR_PTR(-errno). -+ */ -+struct virtio_pcm *virtsnd_pcm_find_or_create(struct virtio_snd *snd, u32 nid) -+{ -+ struct virtio_device *vdev = snd->vdev; -+ struct virtio_pcm *vpcm; -+ -+ vpcm = virtsnd_pcm_find(snd, nid); -+ if (!IS_ERR(vpcm)) -+ return vpcm; -+ -+ vpcm = devm_kzalloc(&vdev->dev, sizeof(*vpcm), GFP_KERNEL); -+ if (!vpcm) -+ return ERR_PTR(-ENOMEM); -+ -+ vpcm->nid = nid; -+ list_add_tail(&vpcm->list, &snd->pcm_list); -+ -+ return vpcm; -+} -+ -+/** -+ * virtsnd_pcm_validate() - Validate if the device can be started. -+ * @vdev: VirtIO parent device. -+ * -+ * Context: Any context. -+ * Return: 0 on success, -EINVAL on failure. -+ */ -+int virtsnd_pcm_validate(struct virtio_device *vdev) -+{ -+ if (pcm_periods_min < 2 || pcm_periods_min > pcm_periods_max) { -+ dev_err(&vdev->dev, -+ "invalid range [%u %u] of the number of PCM periods\n", -+ pcm_periods_min, pcm_periods_max); -+ return -EINVAL; -+ } -+ -+ if (!pcm_period_ms_min || pcm_period_ms_min > pcm_period_ms_max) { -+ dev_err(&vdev->dev, -+ "invalid range [%u %u] of the size of the PCM period\n", -+ pcm_period_ms_min, pcm_period_ms_max); -+ return -EINVAL; -+ } -+ -+ if (pcm_buffer_ms < pcm_periods_min * pcm_period_ms_min) { -+ dev_err(&vdev->dev, -+ "pcm_buffer_ms(=%u) value cannot be < %u ms\n", -+ pcm_buffer_ms, pcm_periods_min * pcm_period_ms_min); -+ return -EINVAL; -+ } -+ -+ if (pcm_period_ms_max > pcm_buffer_ms / 2) { -+ dev_err(&vdev->dev, -+ "pcm_period_ms_max(=%u) value cannot be > %u ms\n", -+ pcm_period_ms_max, pcm_buffer_ms / 2); -+ return -EINVAL; -+ } -+ -+ return 0; -+} -+ -+/** -+ * virtsnd_pcm_period_elapsed() - Kernel work function to handle the elapsed -+ * period state. -+ * @work: Elapsed period work. -+ * -+ * The main purpose of this function is to call snd_pcm_period_elapsed() in -+ * a process context, not in an interrupt context. This is necessary because PCM -+ * devices operate in non-atomic mode. -+ * -+ * Context: Process context. -+ */ -+static void virtsnd_pcm_period_elapsed(struct work_struct *work) -+{ -+ struct virtio_pcm_substream *vss = -+ container_of(work, struct virtio_pcm_substream, elapsed_period); -+ -+ snd_pcm_period_elapsed(vss->substream); -+} -+ -+/** -+ * virtsnd_pcm_parse_cfg() - Parse the stream configuration. -+ * @snd: VirtIO sound device. -+ * -+ * This function is called during initial device initialization. -+ * -+ * Context: Any context that permits to sleep. -+ * Return: 0 on success, -errno on failure. -+ */ -+int virtsnd_pcm_parse_cfg(struct virtio_snd *snd) -+{ -+ struct virtio_device *vdev = snd->vdev; -+ struct virtio_snd_pcm_info *info; -+ u32 i; -+ int rc; -+ -+ virtio_cread_le(vdev, struct virtio_snd_config, streams, -+ &snd->nsubstreams); -+ if (!snd->nsubstreams) -+ return 0; -+ -+ snd->substreams = devm_kcalloc(&vdev->dev, snd->nsubstreams, -+ sizeof(*snd->substreams), GFP_KERNEL); -+ if (!snd->substreams) -+ return -ENOMEM; -+ -+ info = kcalloc(snd->nsubstreams, sizeof(*info), GFP_KERNEL); -+ if (!info) -+ return -ENOMEM; -+ -+ rc = virtsnd_ctl_query_info(snd, VIRTIO_SND_R_PCM_INFO, 0, -+ snd->nsubstreams, sizeof(*info), info); -+ if (rc) -+ goto on_exit; -+ -+ for (i = 0; i < snd->nsubstreams; ++i) { -+ struct virtio_pcm_substream *vss = &snd->substreams[i]; -+ struct virtio_pcm *vpcm; -+ -+ vss->snd = snd; -+ vss->sid = i; -+ INIT_WORK(&vss->elapsed_period, virtsnd_pcm_period_elapsed); -+ -+ rc = virtsnd_pcm_build_hw(vss, &info[i]); -+ if (rc) -+ goto on_exit; -+ -+ vss->nid = le32_to_cpu(info[i].hdr.hda_fn_nid); -+ -+ vpcm = virtsnd_pcm_find_or_create(snd, vss->nid); -+ if (IS_ERR(vpcm)) { -+ rc = PTR_ERR(vpcm); -+ goto on_exit; -+ } -+ -+ switch (info[i].direction) { -+ case VIRTIO_SND_D_OUTPUT: -+ vss->direction = SNDRV_PCM_STREAM_PLAYBACK; -+ break; -+ case VIRTIO_SND_D_INPUT: -+ vss->direction = SNDRV_PCM_STREAM_CAPTURE; -+ break; -+ default: -+ dev_err(&vdev->dev, "SID %u: unknown direction (%u)\n", -+ vss->sid, info[i].direction); -+ rc = -EINVAL; -+ goto on_exit; -+ } -+ -+ vpcm->streams[vss->direction].nsubstreams++; -+ } -+ -+on_exit: -+ kfree(info); -+ -+ return rc; -+} -+ -+/** -+ * virtsnd_pcm_build_devs() - Build ALSA PCM devices. -+ * @snd: VirtIO sound device. -+ * -+ * Context: Any context that permits to sleep. -+ * Return: 0 on success, -errno on failure. -+ */ -+int virtsnd_pcm_build_devs(struct virtio_snd *snd) -+{ -+ struct virtio_device *vdev = snd->vdev; -+ struct virtio_pcm *vpcm; -+ u32 i; -+ int rc; -+ -+ list_for_each_entry(vpcm, &snd->pcm_list, list) { -+ unsigned int npbs = -+ vpcm->streams[SNDRV_PCM_STREAM_PLAYBACK].nsubstreams; -+ unsigned int ncps = -+ vpcm->streams[SNDRV_PCM_STREAM_CAPTURE].nsubstreams; -+ -+ if (!npbs && !ncps) -+ continue; -+ -+ rc = snd_pcm_new(snd->card, VIRTIO_SND_CARD_DRIVER, vpcm->nid, -+ npbs, ncps, &vpcm->pcm); -+ if (rc) { -+ dev_err(&vdev->dev, "snd_pcm_new[%u] failed: %d\n", -+ vpcm->nid, rc); -+ return rc; -+ } -+ -+ vpcm->pcm->info_flags = 0; -+ vpcm->pcm->dev_class = SNDRV_PCM_CLASS_GENERIC; -+ vpcm->pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; -+ snprintf(vpcm->pcm->name, sizeof(vpcm->pcm->name), -+ VIRTIO_SND_PCM_NAME " %u", vpcm->pcm->device); -+ vpcm->pcm->private_data = vpcm; -+ vpcm->pcm->nonatomic = true; -+ -+ for (i = 0; i < ARRAY_SIZE(vpcm->streams); ++i) { -+ struct virtio_pcm_stream *stream = &vpcm->streams[i]; -+ -+ if (!stream->nsubstreams) -+ continue; -+ -+ stream->substreams = -+ devm_kcalloc(&vdev->dev, stream->nsubstreams, -+ sizeof(*stream->substreams), -+ GFP_KERNEL); -+ if (!stream->substreams) -+ return -ENOMEM; -+ -+ stream->nsubstreams = 0; -+ } -+ } -+ -+ for (i = 0; i < snd->nsubstreams; ++i) { -+ struct virtio_pcm_stream *vs; -+ struct virtio_pcm_substream *vss = &snd->substreams[i]; -+ -+ vpcm = virtsnd_pcm_find(snd, vss->nid); -+ if (IS_ERR(vpcm)) -+ return PTR_ERR(vpcm); -+ -+ vs = &vpcm->streams[vss->direction]; -+ vs->substreams[vs->nsubstreams++] = vss; -+ } -+ -+ list_for_each_entry(vpcm, &snd->pcm_list, list) { -+ for (i = 0; i < ARRAY_SIZE(vpcm->streams); ++i) { -+ struct virtio_pcm_stream *vs = &vpcm->streams[i]; -+ struct snd_pcm_str *ks = &vpcm->pcm->streams[i]; -+ struct snd_pcm_substream *kss; -+ -+ if (!vs->nsubstreams) -+ continue; -+ -+ for (kss = ks->substream; kss; kss = kss->next) -+ vs->substreams[kss->number]->substream = kss; -+ } -+ -+ snd_pcm_set_managed_buffer_all(vpcm->pcm, -+ SNDRV_DMA_TYPE_VMALLOC, NULL, -+ 0, 0); -+ } -+ -+ return 0; -+} -diff --git a/sound/virtio/virtio_pcm.h b/sound/virtio/virtio_pcm.h -new file mode 100644 -index 000000000000..84f2f3f14f48 ---- /dev/null -+++ b/sound/virtio/virtio_pcm.h -@@ -0,0 +1,72 @@ -+/* SPDX-License-Identifier: GPL-2.0+ */ -+/* -+ * virtio-snd: Virtio sound device -+ * Copyright (C) 2021 OpenSynergy GmbH -+ */ -+#ifndef VIRTIO_SND_PCM_H -+#define VIRTIO_SND_PCM_H -+ -+#include <linux/atomic.h> -+#include <linux/virtio_config.h> -+#include <sound/pcm.h> -+ -+struct virtio_pcm; -+struct virtio_pcm_msg; -+ -+/** -+ * struct virtio_pcm_substream - VirtIO PCM substream. -+ * @snd: VirtIO sound device. -+ * @nid: Function group node identifier. -+ * @sid: Stream identifier. -+ * @direction: Stream data flow direction (SNDRV_PCM_STREAM_XXX). -+ * @features: Stream VirtIO feature bit map (1 << VIRTIO_SND_PCM_F_XXX). -+ * @substream: Kernel ALSA substream. -+ * @hw: Kernel ALSA substream hardware descriptor. -+ * @elapsed_period: Kernel work to handle the elapsed period state. -+ */ -+struct virtio_pcm_substream { -+ struct virtio_snd *snd; -+ u32 nid; -+ u32 sid; -+ u32 direction; -+ u32 features; -+ struct snd_pcm_substream *substream; -+ struct snd_pcm_hardware hw; -+ struct work_struct elapsed_period; -+}; -+ -+/** -+ * struct virtio_pcm_stream - VirtIO PCM stream. -+ * @substreams: VirtIO substreams belonging to the stream. -+ * @nsubstreams: Number of substreams. -+ */ -+struct virtio_pcm_stream { -+ struct virtio_pcm_substream **substreams; -+ u32 nsubstreams; -+}; -+ -+/** -+ * struct virtio_pcm - VirtIO PCM device. -+ * @list: VirtIO PCM list entry. -+ * @nid: Function group node identifier. -+ * @pcm: Kernel PCM device. -+ * @streams: VirtIO PCM streams (playback and capture). -+ */ -+struct virtio_pcm { -+ struct list_head list; -+ u32 nid; -+ struct snd_pcm *pcm; -+ struct virtio_pcm_stream streams[SNDRV_PCM_STREAM_LAST + 1]; -+}; -+ -+int virtsnd_pcm_validate(struct virtio_device *vdev); -+ -+int virtsnd_pcm_parse_cfg(struct virtio_snd *snd); -+ -+int virtsnd_pcm_build_devs(struct virtio_snd *snd); -+ -+struct virtio_pcm *virtsnd_pcm_find(struct virtio_snd *snd, u32 nid); -+ -+struct virtio_pcm *virtsnd_pcm_find_or_create(struct virtio_snd *snd, u32 nid); -+ -+#endif /* VIRTIO_SND_PCM_H */ diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0005-ALSA-virtio-handling-control-and-I-O-messages-for-th.patch b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0005-ALSA-virtio-handling-control-and-I-O-messages-for-th.patch deleted file mode 100644 index 3a63a530b..000000000 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0005-ALSA-virtio-handling-control-and-I-O-messages-for-th.patch +++ /dev/null @@ -1,645 +0,0 @@ -From e60175c8c7a51861c6f31af4cf99b95f3da7a59f Mon Sep 17 00:00:00 2001 -From: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Date: Tue, 2 Mar 2021 17:47:05 +0100 -Subject: [PATCH] ALSA: virtio: handling control and I/O messages for the PCM - device - -The driver implements a message-based transport for I/O substream -operations. Before the start of the substream, the hardware buffer is -sliced into I/O messages, the number of which is equal to the current -number of periods. The size of each message is equal to the current -size of one period. - -I/O messages are organized in an ordered queue. The completion of the -I/O message indicates an elapsed period (the only exception is the end -of the stream for the capture substream). Upon completion, the message -is automatically re-added to the end of the queue. - -Signed-off-by: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Link: https://lore.kernel.org/r/20210302164709.3142702-6-anton.yakovlev@opensynergy.com -Signed-off-by: Takashi Iwai <tiwai@suse.de> -Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> ---- - sound/virtio/Makefile | 3 +- - sound/virtio/virtio_card.c | 22 +- - sound/virtio/virtio_card.h | 9 + - sound/virtio/virtio_pcm.c | 32 +++ - sound/virtio/virtio_pcm.h | 40 ++++ - sound/virtio/virtio_pcm_msg.c | 414 ++++++++++++++++++++++++++++++++++ - 6 files changed, 515 insertions(+), 5 deletions(-) - create mode 100644 sound/virtio/virtio_pcm_msg.c - -diff --git a/sound/virtio/Makefile b/sound/virtio/Makefile -index 69162a545a41..626af3cc3ed7 100644 ---- a/sound/virtio/Makefile -+++ b/sound/virtio/Makefile -@@ -5,5 +5,6 @@ obj-$(CONFIG_SND_VIRTIO) += virtio_snd.o - virtio_snd-objs := \ - virtio_card.o \ - virtio_ctl_msg.o \ -- virtio_pcm.o -+ virtio_pcm.o \ -+ virtio_pcm_msg.o - -diff --git a/sound/virtio/virtio_card.c b/sound/virtio/virtio_card.c -index 11c76ee311b7..57b9b7f3a9c0 100644 ---- a/sound/virtio/virtio_card.c -+++ b/sound/virtio/virtio_card.c -@@ -55,6 +55,12 @@ static void virtsnd_event_send(struct virtqueue *vqueue, - static void virtsnd_event_dispatch(struct virtio_snd *snd, - struct virtio_snd_event *event) - { -+ switch (le32_to_cpu(event->hdr.code)) { -+ case VIRTIO_SND_EVT_PCM_PERIOD_ELAPSED: -+ case VIRTIO_SND_EVT_PCM_XRUN: -+ virtsnd_pcm_event(snd, event); -+ break; -+ } - } - - /** -@@ -101,11 +107,15 @@ static int virtsnd_find_vqs(struct virtio_snd *snd) - struct virtio_device *vdev = snd->vdev; - static vq_callback_t *callbacks[VIRTIO_SND_VQ_MAX] = { - [VIRTIO_SND_VQ_CONTROL] = virtsnd_ctl_notify_cb, -- [VIRTIO_SND_VQ_EVENT] = virtsnd_event_notify_cb -+ [VIRTIO_SND_VQ_EVENT] = virtsnd_event_notify_cb, -+ [VIRTIO_SND_VQ_TX] = virtsnd_pcm_tx_notify_cb, -+ [VIRTIO_SND_VQ_RX] = virtsnd_pcm_rx_notify_cb - }; - static const char *names[VIRTIO_SND_VQ_MAX] = { - [VIRTIO_SND_VQ_CONTROL] = "virtsnd-ctl", -- [VIRTIO_SND_VQ_EVENT] = "virtsnd-event" -+ [VIRTIO_SND_VQ_EVENT] = "virtsnd-event", -+ [VIRTIO_SND_VQ_TX] = "virtsnd-tx", -+ [VIRTIO_SND_VQ_RX] = "virtsnd-rx" - }; - struct virtqueue *vqs[VIRTIO_SND_VQ_MAX] = { 0 }; - unsigned int i; -@@ -318,8 +328,12 @@ static void virtsnd_remove(struct virtio_device *vdev) - vdev->config->del_vqs(vdev); - vdev->config->reset(vdev); - -- for (i = 0; snd->substreams && i < snd->nsubstreams; ++i) -- cancel_work_sync(&snd->substreams[i].elapsed_period); -+ for (i = 0; snd->substreams && i < snd->nsubstreams; ++i) { -+ struct virtio_pcm_substream *vss = &snd->substreams[i]; -+ -+ cancel_work_sync(&vss->elapsed_period); -+ virtsnd_pcm_msg_free(vss); -+ } - - kfree(snd->event_msgs); - } -diff --git a/sound/virtio/virtio_card.h b/sound/virtio/virtio_card.h -index 77a1b7255370..c43f9744d362 100644 ---- a/sound/virtio/virtio_card.h -+++ b/sound/virtio/virtio_card.h -@@ -79,4 +79,13 @@ virtsnd_rx_queue(struct virtio_snd *snd) - return &snd->queues[VIRTIO_SND_VQ_RX]; - } - -+static inline struct virtio_snd_queue * -+virtsnd_pcm_queue(struct virtio_pcm_substream *vss) -+{ -+ if (vss->direction == SNDRV_PCM_STREAM_PLAYBACK) -+ return virtsnd_tx_queue(vss->snd); -+ else -+ return virtsnd_rx_queue(vss->snd); -+} -+ - #endif /* VIRTIO_SND_CARD_H */ -diff --git a/sound/virtio/virtio_pcm.c b/sound/virtio/virtio_pcm.c -index e16567e2e214..2dcd763efa29 100644 ---- a/sound/virtio/virtio_pcm.c -+++ b/sound/virtio/virtio_pcm.c -@@ -353,6 +353,8 @@ int virtsnd_pcm_parse_cfg(struct virtio_snd *snd) - vss->snd = snd; - vss->sid = i; - INIT_WORK(&vss->elapsed_period, virtsnd_pcm_period_elapsed); -+ init_waitqueue_head(&vss->msg_empty); -+ spin_lock_init(&vss->lock); - - rc = virtsnd_pcm_build_hw(vss, &info[i]); - if (rc) -@@ -477,3 +479,33 @@ int virtsnd_pcm_build_devs(struct virtio_snd *snd) - - return 0; - } -+ -+/** -+ * virtsnd_pcm_event() - Handle the PCM device event notification. -+ * @snd: VirtIO sound device. -+ * @event: VirtIO sound event. -+ * -+ * Context: Interrupt context. -+ */ -+void virtsnd_pcm_event(struct virtio_snd *snd, struct virtio_snd_event *event) -+{ -+ struct virtio_pcm_substream *vss; -+ u32 sid = le32_to_cpu(event->data); -+ -+ if (sid >= snd->nsubstreams) -+ return; -+ -+ vss = &snd->substreams[sid]; -+ -+ switch (le32_to_cpu(event->hdr.code)) { -+ case VIRTIO_SND_EVT_PCM_PERIOD_ELAPSED: -+ /* TODO: deal with shmem elapsed period */ -+ break; -+ case VIRTIO_SND_EVT_PCM_XRUN: -+ spin_lock(&vss->lock); -+ if (vss->xfer_enabled) -+ vss->xfer_xrun = true; -+ spin_unlock(&vss->lock); -+ break; -+ } -+} -diff --git a/sound/virtio/virtio_pcm.h b/sound/virtio/virtio_pcm.h -index 84f2f3f14f48..6722f1139666 100644 ---- a/sound/virtio/virtio_pcm.h -+++ b/sound/virtio/virtio_pcm.h -@@ -23,6 +23,17 @@ struct virtio_pcm_msg; - * @substream: Kernel ALSA substream. - * @hw: Kernel ALSA substream hardware descriptor. - * @elapsed_period: Kernel work to handle the elapsed period state. -+ * @lock: Spinlock that protects fields shared by interrupt handlers and -+ * substream operators. -+ * @buffer_bytes: Current buffer size in bytes. -+ * @hw_ptr: Substream hardware pointer value in bytes [0 ... buffer_bytes). -+ * @xfer_enabled: Data transfer state (0 - off, 1 - on). -+ * @xfer_xrun: Data underflow/overflow state (0 - no xrun, 1 - xrun). -+ * @msgs: Allocated I/O messages. -+ * @nmsgs: Number of allocated I/O messages. -+ * @msg_last_enqueued: Index of the last I/O message added to the virtqueue. -+ * @msg_count: Number of pending I/O messages in the virtqueue. -+ * @msg_empty: Notify when msg_count is zero. - */ - struct virtio_pcm_substream { - struct virtio_snd *snd; -@@ -33,6 +44,16 @@ struct virtio_pcm_substream { - struct snd_pcm_substream *substream; - struct snd_pcm_hardware hw; - struct work_struct elapsed_period; -+ spinlock_t lock; -+ size_t buffer_bytes; -+ size_t hw_ptr; -+ bool xfer_enabled; -+ bool xfer_xrun; -+ struct virtio_pcm_msg **msgs; -+ unsigned int nmsgs; -+ int msg_last_enqueued; -+ unsigned int msg_count; -+ wait_queue_head_t msg_empty; - }; - - /** -@@ -65,8 +86,27 @@ int virtsnd_pcm_parse_cfg(struct virtio_snd *snd); - - int virtsnd_pcm_build_devs(struct virtio_snd *snd); - -+void virtsnd_pcm_event(struct virtio_snd *snd, struct virtio_snd_event *event); -+ -+void virtsnd_pcm_tx_notify_cb(struct virtqueue *vqueue); -+ -+void virtsnd_pcm_rx_notify_cb(struct virtqueue *vqueue); -+ - struct virtio_pcm *virtsnd_pcm_find(struct virtio_snd *snd, u32 nid); - - struct virtio_pcm *virtsnd_pcm_find_or_create(struct virtio_snd *snd, u32 nid); - -+struct virtio_snd_msg * -+virtsnd_pcm_ctl_msg_alloc(struct virtio_pcm_substream *vss, -+ unsigned int command, gfp_t gfp); -+ -+int virtsnd_pcm_msg_alloc(struct virtio_pcm_substream *vss, -+ unsigned int periods, unsigned int period_bytes); -+ -+void virtsnd_pcm_msg_free(struct virtio_pcm_substream *vss); -+ -+int virtsnd_pcm_msg_send(struct virtio_pcm_substream *vss); -+ -+unsigned int virtsnd_pcm_msg_pending_num(struct virtio_pcm_substream *vss); -+ - #endif /* VIRTIO_SND_PCM_H */ -diff --git a/sound/virtio/virtio_pcm_msg.c b/sound/virtio/virtio_pcm_msg.c -new file mode 100644 -index 000000000000..f88c8f29cbd8 ---- /dev/null -+++ b/sound/virtio/virtio_pcm_msg.c -@@ -0,0 +1,414 @@ -+// SPDX-License-Identifier: GPL-2.0+ -+/* -+ * virtio-snd: Virtio sound device -+ * Copyright (C) 2021 OpenSynergy GmbH -+ */ -+#include <sound/pcm_params.h> -+ -+#include "virtio_card.h" -+ -+/** -+ * struct virtio_pcm_msg - VirtIO I/O message. -+ * @substream: VirtIO PCM substream. -+ * @xfer: Request header payload. -+ * @status: Response header payload. -+ * @length: Data length in bytes. -+ * @sgs: Payload scatter-gather table. -+ */ -+struct virtio_pcm_msg { -+ struct virtio_pcm_substream *substream; -+ struct virtio_snd_pcm_xfer xfer; -+ struct virtio_snd_pcm_status status; -+ size_t length; -+ struct scatterlist sgs[0]; -+}; -+ -+/** -+ * enum pcm_msg_sg_index - Index values for the virtio_pcm_msg->sgs field in -+ * an I/O message. -+ * @PCM_MSG_SG_XFER: Element containing a virtio_snd_pcm_xfer structure. -+ * @PCM_MSG_SG_STATUS: Element containing a virtio_snd_pcm_status structure. -+ * @PCM_MSG_SG_DATA: The first element containing a data buffer. -+ */ -+enum pcm_msg_sg_index { -+ PCM_MSG_SG_XFER = 0, -+ PCM_MSG_SG_STATUS, -+ PCM_MSG_SG_DATA -+}; -+ -+/** -+ * virtsnd_pcm_sg_num() - Count the number of sg-elements required to represent -+ * vmalloc'ed buffer. -+ * @data: Pointer to vmalloc'ed buffer. -+ * @length: Buffer size. -+ * -+ * Context: Any context. -+ * Return: Number of physically contiguous parts in the @data. -+ */ -+static int virtsnd_pcm_sg_num(u8 *data, unsigned int length) -+{ -+ phys_addr_t sg_address; -+ unsigned int sg_length; -+ int num = 0; -+ -+ while (length) { -+ struct page *pg = vmalloc_to_page(data); -+ phys_addr_t pg_address = page_to_phys(pg); -+ size_t pg_length; -+ -+ pg_length = PAGE_SIZE - offset_in_page(data); -+ if (pg_length > length) -+ pg_length = length; -+ -+ if (!num || sg_address + sg_length != pg_address) { -+ sg_address = pg_address; -+ sg_length = pg_length; -+ num++; -+ } else { -+ sg_length += pg_length; -+ } -+ -+ data += pg_length; -+ length -= pg_length; -+ } -+ -+ return num; -+} -+ -+/** -+ * virtsnd_pcm_sg_from() - Build sg-list from vmalloc'ed buffer. -+ * @sgs: Preallocated sg-list to populate. -+ * @nsgs: The maximum number of elements in the @sgs. -+ * @data: Pointer to vmalloc'ed buffer. -+ * @length: Buffer size. -+ * -+ * Splits the buffer into physically contiguous parts and makes an sg-list of -+ * such parts. -+ * -+ * Context: Any context. -+ */ -+static void virtsnd_pcm_sg_from(struct scatterlist *sgs, int nsgs, u8 *data, -+ unsigned int length) -+{ -+ int idx = -1; -+ -+ while (length) { -+ struct page *pg = vmalloc_to_page(data); -+ size_t pg_length; -+ -+ pg_length = PAGE_SIZE - offset_in_page(data); -+ if (pg_length > length) -+ pg_length = length; -+ -+ if (idx == -1 || -+ sg_phys(&sgs[idx]) + sgs[idx].length != page_to_phys(pg)) { -+ if (idx + 1 == nsgs) -+ break; -+ sg_set_page(&sgs[++idx], pg, pg_length, -+ offset_in_page(data)); -+ } else { -+ sgs[idx].length += pg_length; -+ } -+ -+ data += pg_length; -+ length -= pg_length; -+ } -+ -+ sg_mark_end(&sgs[idx]); -+} -+ -+/** -+ * virtsnd_pcm_msg_alloc() - Allocate I/O messages. -+ * @vss: VirtIO PCM substream. -+ * @periods: Current number of periods. -+ * @period_bytes: Current period size in bytes. -+ * -+ * The function slices the buffer into @periods parts (each with the size of -+ * @period_bytes), and creates @periods corresponding I/O messages. -+ * -+ * Context: Any context that permits to sleep. -+ * Return: 0 on success, -ENOMEM on failure. -+ */ -+int virtsnd_pcm_msg_alloc(struct virtio_pcm_substream *vss, -+ unsigned int periods, unsigned int period_bytes) -+{ -+ struct snd_pcm_runtime *runtime = vss->substream->runtime; -+ unsigned int i; -+ -+ vss->msgs = kcalloc(periods, sizeof(*vss->msgs), GFP_KERNEL); -+ if (!vss->msgs) -+ return -ENOMEM; -+ -+ vss->nmsgs = periods; -+ -+ for (i = 0; i < periods; ++i) { -+ u8 *data = runtime->dma_area + period_bytes * i; -+ int sg_num = virtsnd_pcm_sg_num(data, period_bytes); -+ struct virtio_pcm_msg *msg; -+ -+ msg = kzalloc(sizeof(*msg) + sizeof(*msg->sgs) * (sg_num + 2), -+ GFP_KERNEL); -+ if (!msg) -+ return -ENOMEM; -+ -+ msg->substream = vss; -+ sg_init_one(&msg->sgs[PCM_MSG_SG_XFER], &msg->xfer, -+ sizeof(msg->xfer)); -+ sg_init_one(&msg->sgs[PCM_MSG_SG_STATUS], &msg->status, -+ sizeof(msg->status)); -+ msg->length = period_bytes; -+ virtsnd_pcm_sg_from(&msg->sgs[PCM_MSG_SG_DATA], sg_num, data, -+ period_bytes); -+ -+ vss->msgs[i] = msg; -+ } -+ -+ return 0; -+} -+ -+/** -+ * virtsnd_pcm_msg_free() - Free all allocated I/O messages. -+ * @vss: VirtIO PCM substream. -+ * -+ * Context: Any context. -+ */ -+void virtsnd_pcm_msg_free(struct virtio_pcm_substream *vss) -+{ -+ unsigned int i; -+ -+ for (i = 0; vss->msgs && i < vss->nmsgs; ++i) -+ kfree(vss->msgs[i]); -+ kfree(vss->msgs); -+ -+ vss->msgs = NULL; -+ vss->nmsgs = 0; -+} -+ -+/** -+ * virtsnd_pcm_msg_send() - Send asynchronous I/O messages. -+ * @vss: VirtIO PCM substream. -+ * -+ * All messages are organized in an ordered circular list. Each time the -+ * function is called, all currently non-enqueued messages are added to the -+ * virtqueue. For this, the function keeps track of two values: -+ * -+ * msg_last_enqueued = index of the last enqueued message, -+ * msg_count = # of pending messages in the virtqueue. -+ * -+ * Context: Any context. Expects the tx/rx queue and the VirtIO substream -+ * spinlocks to be held by caller. -+ * Return: 0 on success, -errno on failure. -+ */ -+int virtsnd_pcm_msg_send(struct virtio_pcm_substream *vss) -+{ -+ struct snd_pcm_runtime *runtime = vss->substream->runtime; -+ struct virtio_snd *snd = vss->snd; -+ struct virtio_device *vdev = snd->vdev; -+ struct virtqueue *vqueue = virtsnd_pcm_queue(vss)->vqueue; -+ int i; -+ int n; -+ bool notify = false; -+ -+ i = (vss->msg_last_enqueued + 1) % runtime->periods; -+ n = runtime->periods - vss->msg_count; -+ -+ for (; n; --n, i = (i + 1) % runtime->periods) { -+ struct virtio_pcm_msg *msg = vss->msgs[i]; -+ struct scatterlist *psgs[] = { -+ &msg->sgs[PCM_MSG_SG_XFER], -+ &msg->sgs[PCM_MSG_SG_DATA], -+ &msg->sgs[PCM_MSG_SG_STATUS] -+ }; -+ int rc; -+ -+ msg->xfer.stream_id = cpu_to_le32(vss->sid); -+ memset(&msg->status, 0, sizeof(msg->status)); -+ -+ if (vss->direction == SNDRV_PCM_STREAM_PLAYBACK) -+ rc = virtqueue_add_sgs(vqueue, psgs, 2, 1, msg, -+ GFP_ATOMIC); -+ else -+ rc = virtqueue_add_sgs(vqueue, psgs, 1, 2, msg, -+ GFP_ATOMIC); -+ -+ if (rc) { -+ dev_err(&vdev->dev, -+ "SID %u: failed to send I/O message\n", -+ vss->sid); -+ return rc; -+ } -+ -+ vss->msg_last_enqueued = i; -+ vss->msg_count++; -+ } -+ -+ if (!(vss->features & (1U << VIRTIO_SND_PCM_F_MSG_POLLING))) -+ notify = virtqueue_kick_prepare(vqueue); -+ -+ if (notify) -+ virtqueue_notify(vqueue); -+ -+ return 0; -+} -+ -+/** -+ * virtsnd_pcm_msg_pending_num() - Returns the number of pending I/O messages. -+ * @vss: VirtIO substream. -+ * -+ * Context: Any context. -+ * Return: Number of messages. -+ */ -+unsigned int virtsnd_pcm_msg_pending_num(struct virtio_pcm_substream *vss) -+{ -+ unsigned int num; -+ unsigned long flags; -+ -+ spin_lock_irqsave(&vss->lock, flags); -+ num = vss->msg_count; -+ spin_unlock_irqrestore(&vss->lock, flags); -+ -+ return num; -+} -+ -+/** -+ * virtsnd_pcm_msg_complete() - Complete an I/O message. -+ * @msg: I/O message. -+ * @written_bytes: Number of bytes written to the message. -+ * -+ * Completion of the message means the elapsed period. If transmission is -+ * allowed, then each completed message is immediately placed back at the end -+ * of the queue. -+ * -+ * For the playback substream, @written_bytes is equal to sizeof(msg->status). -+ * -+ * For the capture substream, @written_bytes is equal to sizeof(msg->status) -+ * plus the number of captured bytes. -+ * -+ * Context: Interrupt context. Takes and releases the VirtIO substream spinlock. -+ */ -+static void virtsnd_pcm_msg_complete(struct virtio_pcm_msg *msg, -+ size_t written_bytes) -+{ -+ struct virtio_pcm_substream *vss = msg->substream; -+ -+ /* -+ * hw_ptr always indicates the buffer position of the first I/O message -+ * in the virtqueue. Therefore, on each completion of an I/O message, -+ * the hw_ptr value is unconditionally advanced. -+ */ -+ spin_lock(&vss->lock); -+ /* -+ * If the capture substream returned an incorrect status, then just -+ * increase the hw_ptr by the message size. -+ */ -+ if (vss->direction == SNDRV_PCM_STREAM_PLAYBACK || -+ written_bytes <= sizeof(msg->status)) -+ vss->hw_ptr += msg->length; -+ else -+ vss->hw_ptr += written_bytes - sizeof(msg->status); -+ -+ if (vss->hw_ptr >= vss->buffer_bytes) -+ vss->hw_ptr -= vss->buffer_bytes; -+ -+ vss->xfer_xrun = false; -+ vss->msg_count--; -+ -+ if (vss->xfer_enabled) { -+ struct snd_pcm_runtime *runtime = vss->substream->runtime; -+ -+ runtime->delay = -+ bytes_to_frames(runtime, -+ le32_to_cpu(msg->status.latency_bytes)); -+ -+ schedule_work(&vss->elapsed_period); -+ -+ virtsnd_pcm_msg_send(vss); -+ } else if (!vss->msg_count) { -+ wake_up_all(&vss->msg_empty); -+ } -+ spin_unlock(&vss->lock); -+} -+ -+/** -+ * virtsnd_pcm_notify_cb() - Process all completed I/O messages. -+ * @queue: Underlying tx/rx virtqueue. -+ * -+ * Context: Interrupt context. Takes and releases the tx/rx queue spinlock. -+ */ -+static inline void virtsnd_pcm_notify_cb(struct virtio_snd_queue *queue) -+{ -+ struct virtio_pcm_msg *msg; -+ u32 written_bytes; -+ unsigned long flags; -+ -+ spin_lock_irqsave(&queue->lock, flags); -+ do { -+ virtqueue_disable_cb(queue->vqueue); -+ while ((msg = virtqueue_get_buf(queue->vqueue, &written_bytes))) -+ virtsnd_pcm_msg_complete(msg, written_bytes); -+ if (unlikely(virtqueue_is_broken(queue->vqueue))) -+ break; -+ } while (!virtqueue_enable_cb(queue->vqueue)); -+ spin_unlock_irqrestore(&queue->lock, flags); -+} -+ -+/** -+ * virtsnd_pcm_tx_notify_cb() - Process all completed TX messages. -+ * @vqueue: Underlying tx virtqueue. -+ * -+ * Context: Interrupt context. -+ */ -+void virtsnd_pcm_tx_notify_cb(struct virtqueue *vqueue) -+{ -+ struct virtio_snd *snd = vqueue->vdev->priv; -+ -+ virtsnd_pcm_notify_cb(virtsnd_tx_queue(snd)); -+} -+ -+/** -+ * virtsnd_pcm_rx_notify_cb() - Process all completed RX messages. -+ * @vqueue: Underlying rx virtqueue. -+ * -+ * Context: Interrupt context. -+ */ -+void virtsnd_pcm_rx_notify_cb(struct virtqueue *vqueue) -+{ -+ struct virtio_snd *snd = vqueue->vdev->priv; -+ -+ virtsnd_pcm_notify_cb(virtsnd_rx_queue(snd)); -+} -+ -+/** -+ * virtsnd_pcm_ctl_msg_alloc() - Allocate and initialize the PCM device control -+ * message for the specified substream. -+ * @vss: VirtIO PCM substream. -+ * @command: Control request code (VIRTIO_SND_R_PCM_XXX). -+ * @gfp: Kernel flags for memory allocation. -+ * -+ * Context: Any context. May sleep if @gfp flags permit. -+ * Return: Allocated message on success, NULL on failure. -+ */ -+struct virtio_snd_msg * -+virtsnd_pcm_ctl_msg_alloc(struct virtio_pcm_substream *vss, -+ unsigned int command, gfp_t gfp) -+{ -+ size_t request_size = sizeof(struct virtio_snd_pcm_hdr); -+ size_t response_size = sizeof(struct virtio_snd_hdr); -+ struct virtio_snd_msg *msg; -+ -+ switch (command) { -+ case VIRTIO_SND_R_PCM_SET_PARAMS: -+ request_size = sizeof(struct virtio_snd_pcm_set_params); -+ break; -+ } -+ -+ msg = virtsnd_ctl_msg_alloc(request_size, response_size, gfp); -+ if (msg) { -+ struct virtio_snd_pcm_hdr *hdr = virtsnd_ctl_msg_request(msg); -+ -+ hdr->hdr.code = cpu_to_le32(command); -+ hdr->stream_id = cpu_to_le32(vss->sid); -+ } -+ -+ return msg; -+} diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0006-ALSA-virtio-PCM-substream-operators.patch b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0006-ALSA-virtio-PCM-substream-operators.patch deleted file mode 100644 index 9196b34e4..000000000 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0006-ALSA-virtio-PCM-substream-operators.patch +++ /dev/null @@ -1,525 +0,0 @@ -From 93c313dc4fc78b077bb0911afe3a77ffa845ad58 Mon Sep 17 00:00:00 2001 -From: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Date: Tue, 2 Mar 2021 17:47:06 +0100 -Subject: [PATCH] ALSA: virtio: PCM substream operators - -Introduce the operators required for the operation of substreams. - -Signed-off-by: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Link: https://lore.kernel.org/r/20210302164709.3142702-7-anton.yakovlev@opensynergy.com -Signed-off-by: Takashi Iwai <tiwai@suse.de> -Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> ---- - sound/virtio/Makefile | 3 +- - sound/virtio/virtio_pcm.c | 2 + - sound/virtio/virtio_pcm.h | 5 + - sound/virtio/virtio_pcm_ops.c | 445 ++++++++++++++++++++++++++++++++++ - 4 files changed, 454 insertions(+), 1 deletion(-) - create mode 100644 sound/virtio/virtio_pcm_ops.c - -diff --git a/sound/virtio/Makefile b/sound/virtio/Makefile -index 626af3cc3ed7..34493226793f 100644 ---- a/sound/virtio/Makefile -+++ b/sound/virtio/Makefile -@@ -6,5 +6,6 @@ virtio_snd-objs := \ - virtio_card.o \ - virtio_ctl_msg.o \ - virtio_pcm.o \ -- virtio_pcm_msg.o -+ virtio_pcm_msg.o \ -+ virtio_pcm_ops.o - -diff --git a/sound/virtio/virtio_pcm.c b/sound/virtio/virtio_pcm.c -index 2dcd763efa29..c10d91fff2fb 100644 ---- a/sound/virtio/virtio_pcm.c -+++ b/sound/virtio/virtio_pcm.c -@@ -470,6 +470,8 @@ int virtsnd_pcm_build_devs(struct virtio_snd *snd) - - for (kss = ks->substream; kss; kss = kss->next) - vs->substreams[kss->number]->substream = kss; -+ -+ snd_pcm_set_ops(vpcm->pcm, i, &virtsnd_pcm_ops); - } - - snd_pcm_set_managed_buffer_all(vpcm->pcm, -diff --git a/sound/virtio/virtio_pcm.h b/sound/virtio/virtio_pcm.h -index 6722f1139666..efd0228746cf 100644 ---- a/sound/virtio/virtio_pcm.h -+++ b/sound/virtio/virtio_pcm.h -@@ -29,6 +29,8 @@ struct virtio_pcm_msg; - * @hw_ptr: Substream hardware pointer value in bytes [0 ... buffer_bytes). - * @xfer_enabled: Data transfer state (0 - off, 1 - on). - * @xfer_xrun: Data underflow/overflow state (0 - no xrun, 1 - xrun). -+ * @stopped: True if the substream is stopped and must be released on the device -+ * side. - * @msgs: Allocated I/O messages. - * @nmsgs: Number of allocated I/O messages. - * @msg_last_enqueued: Index of the last I/O message added to the virtqueue. -@@ -49,6 +51,7 @@ struct virtio_pcm_substream { - size_t hw_ptr; - bool xfer_enabled; - bool xfer_xrun; -+ bool stopped; - struct virtio_pcm_msg **msgs; - unsigned int nmsgs; - int msg_last_enqueued; -@@ -80,6 +83,8 @@ struct virtio_pcm { - struct virtio_pcm_stream streams[SNDRV_PCM_STREAM_LAST + 1]; - }; - -+extern const struct snd_pcm_ops virtsnd_pcm_ops; -+ - int virtsnd_pcm_validate(struct virtio_device *vdev); - - int virtsnd_pcm_parse_cfg(struct virtio_snd *snd); -diff --git a/sound/virtio/virtio_pcm_ops.c b/sound/virtio/virtio_pcm_ops.c -new file mode 100644 -index 000000000000..0682a2df6c8c ---- /dev/null -+++ b/sound/virtio/virtio_pcm_ops.c -@@ -0,0 +1,445 @@ -+// SPDX-License-Identifier: GPL-2.0+ -+/* -+ * virtio-snd: Virtio sound device -+ * Copyright (C) 2021 OpenSynergy GmbH -+ */ -+#include <sound/pcm_params.h> -+ -+#include "virtio_card.h" -+ -+/* -+ * I/O messages lifetime -+ * --------------------- -+ * -+ * Allocation: -+ * Messages are initially allocated in the ops->hw_params() after the size and -+ * number of periods have been successfully negotiated. -+ * -+ * Freeing: -+ * Messages can be safely freed after the queue has been successfully flushed -+ * (RELEASE command in the ops->sync_stop()) and the ops->hw_free() has been -+ * called. -+ * -+ * When the substream stops, the ops->sync_stop() waits until the device has -+ * completed all pending messages. This wait can be interrupted either by a -+ * signal or due to a timeout. In this case, the device can still access -+ * messages even after calling ops->hw_free(). It can also issue an interrupt, -+ * and the interrupt handler will also try to access message structures. -+ * -+ * Therefore, freeing of already allocated messages occurs: -+ * -+ * - in ops->hw_params(), if this operator was called several times in a row, -+ * or if ops->hw_free() failed to free messages previously; -+ * -+ * - in ops->hw_free(), if the queue has been successfully flushed; -+ * -+ * - in dev->release(). -+ */ -+ -+/* Map for converting ALSA format to VirtIO format. */ -+struct virtsnd_a2v_format { -+ snd_pcm_format_t alsa_bit; -+ unsigned int vio_bit; -+}; -+ -+static const struct virtsnd_a2v_format g_a2v_format_map[] = { -+ { SNDRV_PCM_FORMAT_IMA_ADPCM, VIRTIO_SND_PCM_FMT_IMA_ADPCM }, -+ { SNDRV_PCM_FORMAT_MU_LAW, VIRTIO_SND_PCM_FMT_MU_LAW }, -+ { SNDRV_PCM_FORMAT_A_LAW, VIRTIO_SND_PCM_FMT_A_LAW }, -+ { SNDRV_PCM_FORMAT_S8, VIRTIO_SND_PCM_FMT_S8 }, -+ { SNDRV_PCM_FORMAT_U8, VIRTIO_SND_PCM_FMT_U8 }, -+ { SNDRV_PCM_FORMAT_S16_LE, VIRTIO_SND_PCM_FMT_S16 }, -+ { SNDRV_PCM_FORMAT_U16_LE, VIRTIO_SND_PCM_FMT_U16 }, -+ { SNDRV_PCM_FORMAT_S18_3LE, VIRTIO_SND_PCM_FMT_S18_3 }, -+ { SNDRV_PCM_FORMAT_U18_3LE, VIRTIO_SND_PCM_FMT_U18_3 }, -+ { SNDRV_PCM_FORMAT_S20_3LE, VIRTIO_SND_PCM_FMT_S20_3 }, -+ { SNDRV_PCM_FORMAT_U20_3LE, VIRTIO_SND_PCM_FMT_U20_3 }, -+ { SNDRV_PCM_FORMAT_S24_3LE, VIRTIO_SND_PCM_FMT_S24_3 }, -+ { SNDRV_PCM_FORMAT_U24_3LE, VIRTIO_SND_PCM_FMT_U24_3 }, -+ { SNDRV_PCM_FORMAT_S20_LE, VIRTIO_SND_PCM_FMT_S20 }, -+ { SNDRV_PCM_FORMAT_U20_LE, VIRTIO_SND_PCM_FMT_U20 }, -+ { SNDRV_PCM_FORMAT_S24_LE, VIRTIO_SND_PCM_FMT_S24 }, -+ { SNDRV_PCM_FORMAT_U24_LE, VIRTIO_SND_PCM_FMT_U24 }, -+ { SNDRV_PCM_FORMAT_S32_LE, VIRTIO_SND_PCM_FMT_S32 }, -+ { SNDRV_PCM_FORMAT_U32_LE, VIRTIO_SND_PCM_FMT_U32 }, -+ { SNDRV_PCM_FORMAT_FLOAT_LE, VIRTIO_SND_PCM_FMT_FLOAT }, -+ { SNDRV_PCM_FORMAT_FLOAT64_LE, VIRTIO_SND_PCM_FMT_FLOAT64 }, -+ { SNDRV_PCM_FORMAT_DSD_U8, VIRTIO_SND_PCM_FMT_DSD_U8 }, -+ { SNDRV_PCM_FORMAT_DSD_U16_LE, VIRTIO_SND_PCM_FMT_DSD_U16 }, -+ { SNDRV_PCM_FORMAT_DSD_U32_LE, VIRTIO_SND_PCM_FMT_DSD_U32 }, -+ { SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE, -+ VIRTIO_SND_PCM_FMT_IEC958_SUBFRAME } -+}; -+ -+/* Map for converting ALSA frame rate to VirtIO frame rate. */ -+struct virtsnd_a2v_rate { -+ unsigned int rate; -+ unsigned int vio_bit; -+}; -+ -+static const struct virtsnd_a2v_rate g_a2v_rate_map[] = { -+ { 5512, VIRTIO_SND_PCM_RATE_5512 }, -+ { 8000, VIRTIO_SND_PCM_RATE_8000 }, -+ { 11025, VIRTIO_SND_PCM_RATE_11025 }, -+ { 16000, VIRTIO_SND_PCM_RATE_16000 }, -+ { 22050, VIRTIO_SND_PCM_RATE_22050 }, -+ { 32000, VIRTIO_SND_PCM_RATE_32000 }, -+ { 44100, VIRTIO_SND_PCM_RATE_44100 }, -+ { 48000, VIRTIO_SND_PCM_RATE_48000 }, -+ { 64000, VIRTIO_SND_PCM_RATE_64000 }, -+ { 88200, VIRTIO_SND_PCM_RATE_88200 }, -+ { 96000, VIRTIO_SND_PCM_RATE_96000 }, -+ { 176400, VIRTIO_SND_PCM_RATE_176400 }, -+ { 192000, VIRTIO_SND_PCM_RATE_192000 } -+}; -+ -+static int virtsnd_pcm_sync_stop(struct snd_pcm_substream *substream); -+ -+/** -+ * virtsnd_pcm_open() - Open the PCM substream. -+ * @substream: Kernel ALSA substream. -+ * -+ * Context: Process context. -+ * Return: 0 on success, -errno on failure. -+ */ -+static int virtsnd_pcm_open(struct snd_pcm_substream *substream) -+{ -+ struct virtio_pcm *vpcm = snd_pcm_substream_chip(substream); -+ struct virtio_pcm_stream *vs = &vpcm->streams[substream->stream]; -+ struct virtio_pcm_substream *vss = vs->substreams[substream->number]; -+ -+ substream->runtime->hw = vss->hw; -+ substream->private_data = vss; -+ -+ snd_pcm_hw_constraint_integer(substream->runtime, -+ SNDRV_PCM_HW_PARAM_PERIODS); -+ -+ vss->stopped = !!virtsnd_pcm_msg_pending_num(vss); -+ -+ /* -+ * If the substream has already been used, then the I/O queue may be in -+ * an invalid state. Just in case, we do a check and try to return the -+ * queue to its original state, if necessary. -+ */ -+ return virtsnd_pcm_sync_stop(substream); -+} -+ -+/** -+ * virtsnd_pcm_close() - Close the PCM substream. -+ * @substream: Kernel ALSA substream. -+ * -+ * Context: Process context. -+ * Return: 0. -+ */ -+static int virtsnd_pcm_close(struct snd_pcm_substream *substream) -+{ -+ return 0; -+} -+ -+/** -+ * virtsnd_pcm_dev_set_params() - Set the parameters of the PCM substream on -+ * the device side. -+ * @vss: VirtIO PCM substream. -+ * @buffer_bytes: Size of the hardware buffer. -+ * @period_bytes: Size of the hardware period. -+ * @channels: Selected number of channels. -+ * @format: Selected sample format (SNDRV_PCM_FORMAT_XXX). -+ * @rate: Selected frame rate. -+ * -+ * Context: Any context that permits to sleep. -+ * Return: 0 on success, -errno on failure. -+ */ -+static int virtsnd_pcm_dev_set_params(struct virtio_pcm_substream *vss, -+ unsigned int buffer_bytes, -+ unsigned int period_bytes, -+ unsigned int channels, -+ snd_pcm_format_t format, -+ unsigned int rate) -+{ -+ struct virtio_snd_msg *msg; -+ struct virtio_snd_pcm_set_params *request; -+ unsigned int i; -+ int vformat = -1; -+ int vrate = -1; -+ -+ for (i = 0; i < ARRAY_SIZE(g_a2v_format_map); ++i) -+ if (g_a2v_format_map[i].alsa_bit == format) { -+ vformat = g_a2v_format_map[i].vio_bit; -+ -+ break; -+ } -+ -+ for (i = 0; i < ARRAY_SIZE(g_a2v_rate_map); ++i) -+ if (g_a2v_rate_map[i].rate == rate) { -+ vrate = g_a2v_rate_map[i].vio_bit; -+ -+ break; -+ } -+ -+ if (vformat == -1 || vrate == -1) -+ return -EINVAL; -+ -+ msg = virtsnd_pcm_ctl_msg_alloc(vss, VIRTIO_SND_R_PCM_SET_PARAMS, -+ GFP_KERNEL); -+ if (!msg) -+ return -ENOMEM; -+ -+ request = virtsnd_ctl_msg_request(msg); -+ request->buffer_bytes = cpu_to_le32(buffer_bytes); -+ request->period_bytes = cpu_to_le32(period_bytes); -+ request->channels = channels; -+ request->format = vformat; -+ request->rate = vrate; -+ -+ if (vss->features & (1U << VIRTIO_SND_PCM_F_MSG_POLLING)) -+ request->features |= -+ cpu_to_le32(1U << VIRTIO_SND_PCM_F_MSG_POLLING); -+ -+ if (vss->features & (1U << VIRTIO_SND_PCM_F_EVT_XRUNS)) -+ request->features |= -+ cpu_to_le32(1U << VIRTIO_SND_PCM_F_EVT_XRUNS); -+ -+ return virtsnd_ctl_msg_send_sync(vss->snd, msg); -+} -+ -+/** -+ * virtsnd_pcm_hw_params() - Set the parameters of the PCM substream. -+ * @substream: Kernel ALSA substream. -+ * @hw_params: Hardware parameters. -+ * -+ * Context: Process context. -+ * Return: 0 on success, -errno on failure. -+ */ -+static int virtsnd_pcm_hw_params(struct snd_pcm_substream *substream, -+ struct snd_pcm_hw_params *hw_params) -+{ -+ struct virtio_pcm_substream *vss = snd_pcm_substream_chip(substream); -+ struct virtio_device *vdev = vss->snd->vdev; -+ int rc; -+ -+ if (virtsnd_pcm_msg_pending_num(vss)) { -+ dev_err(&vdev->dev, "SID %u: invalid I/O queue state\n", -+ vss->sid); -+ return -EBADFD; -+ } -+ -+ rc = virtsnd_pcm_dev_set_params(vss, params_buffer_bytes(hw_params), -+ params_period_bytes(hw_params), -+ params_channels(hw_params), -+ params_format(hw_params), -+ params_rate(hw_params)); -+ if (rc) -+ return rc; -+ -+ /* -+ * Free previously allocated messages if ops->hw_params() is called -+ * several times in a row, or if ops->hw_free() failed to free messages. -+ */ -+ virtsnd_pcm_msg_free(vss); -+ -+ return virtsnd_pcm_msg_alloc(vss, params_periods(hw_params), -+ params_period_bytes(hw_params)); -+} -+ -+/** -+ * virtsnd_pcm_hw_free() - Reset the parameters of the PCM substream. -+ * @substream: Kernel ALSA substream. -+ * -+ * Context: Process context. -+ * Return: 0 -+ */ -+static int virtsnd_pcm_hw_free(struct snd_pcm_substream *substream) -+{ -+ struct virtio_pcm_substream *vss = snd_pcm_substream_chip(substream); -+ -+ /* If the queue is flushed, we can safely free the messages here. */ -+ if (!virtsnd_pcm_msg_pending_num(vss)) -+ virtsnd_pcm_msg_free(vss); -+ -+ return 0; -+} -+ -+/** -+ * virtsnd_pcm_prepare() - Prepare the PCM substream. -+ * @substream: Kernel ALSA substream. -+ * -+ * Context: Process context. -+ * Return: 0 on success, -errno on failure. -+ */ -+static int virtsnd_pcm_prepare(struct snd_pcm_substream *substream) -+{ -+ struct virtio_pcm_substream *vss = snd_pcm_substream_chip(substream); -+ struct virtio_device *vdev = vss->snd->vdev; -+ struct virtio_snd_msg *msg; -+ -+ if (virtsnd_pcm_msg_pending_num(vss)) { -+ dev_err(&vdev->dev, "SID %u: invalid I/O queue state\n", -+ vss->sid); -+ return -EBADFD; -+ } -+ -+ vss->buffer_bytes = snd_pcm_lib_buffer_bytes(substream); -+ vss->hw_ptr = 0; -+ vss->xfer_xrun = false; -+ vss->msg_last_enqueued = -1; -+ vss->msg_count = 0; -+ -+ msg = virtsnd_pcm_ctl_msg_alloc(vss, VIRTIO_SND_R_PCM_PREPARE, -+ GFP_KERNEL); -+ if (!msg) -+ return -ENOMEM; -+ -+ return virtsnd_ctl_msg_send_sync(vss->snd, msg); -+} -+ -+/** -+ * virtsnd_pcm_trigger() - Process command for the PCM substream. -+ * @substream: Kernel ALSA substream. -+ * @command: Substream command (SNDRV_PCM_TRIGGER_XXX). -+ * -+ * Context: Any context. Takes and releases the VirtIO substream spinlock. -+ * May take and release the tx/rx queue spinlock. -+ * Return: 0 on success, -errno on failure. -+ */ -+static int virtsnd_pcm_trigger(struct snd_pcm_substream *substream, int command) -+{ -+ struct virtio_pcm_substream *vss = snd_pcm_substream_chip(substream); -+ struct virtio_snd *snd = vss->snd; -+ struct virtio_snd_queue *queue; -+ struct virtio_snd_msg *msg; -+ unsigned long flags; -+ int rc; -+ -+ switch (command) { -+ case SNDRV_PCM_TRIGGER_START: -+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: -+ queue = virtsnd_pcm_queue(vss); -+ -+ spin_lock_irqsave(&queue->lock, flags); -+ spin_lock(&vss->lock); -+ rc = virtsnd_pcm_msg_send(vss); -+ if (!rc) -+ vss->xfer_enabled = true; -+ spin_unlock(&vss->lock); -+ spin_unlock_irqrestore(&queue->lock, flags); -+ if (rc) -+ return rc; -+ -+ msg = virtsnd_pcm_ctl_msg_alloc(vss, VIRTIO_SND_R_PCM_START, -+ GFP_KERNEL); -+ if (!msg) { -+ spin_lock_irqsave(&vss->lock, flags); -+ vss->xfer_enabled = false; -+ spin_unlock_irqrestore(&vss->lock, flags); -+ -+ return -ENOMEM; -+ } -+ -+ return virtsnd_ctl_msg_send_sync(snd, msg); -+ case SNDRV_PCM_TRIGGER_STOP: -+ vss->stopped = true; -+ fallthrough; -+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH: -+ spin_lock_irqsave(&vss->lock, flags); -+ vss->xfer_enabled = false; -+ spin_unlock_irqrestore(&vss->lock, flags); -+ -+ msg = virtsnd_pcm_ctl_msg_alloc(vss, VIRTIO_SND_R_PCM_STOP, -+ GFP_KERNEL); -+ if (!msg) -+ return -ENOMEM; -+ -+ return virtsnd_ctl_msg_send_sync(snd, msg); -+ default: -+ return -EINVAL; -+ } -+} -+ -+/** -+ * virtsnd_pcm_sync_stop() - Synchronous PCM substream stop. -+ * @substream: Kernel ALSA substream. -+ * -+ * The function can be called both from the upper level or from the driver -+ * itself. -+ * -+ * Context: Process context. Takes and releases the VirtIO substream spinlock. -+ * Return: 0 on success, -errno on failure. -+ */ -+static int virtsnd_pcm_sync_stop(struct snd_pcm_substream *substream) -+{ -+ struct virtio_pcm_substream *vss = snd_pcm_substream_chip(substream); -+ struct virtio_snd *snd = vss->snd; -+ struct virtio_snd_msg *msg; -+ unsigned int js = msecs_to_jiffies(virtsnd_msg_timeout_ms); -+ int rc; -+ -+ cancel_work_sync(&vss->elapsed_period); -+ -+ if (!vss->stopped) -+ return 0; -+ -+ msg = virtsnd_pcm_ctl_msg_alloc(vss, VIRTIO_SND_R_PCM_RELEASE, -+ GFP_KERNEL); -+ if (!msg) -+ return -ENOMEM; -+ -+ rc = virtsnd_ctl_msg_send_sync(snd, msg); -+ if (rc) -+ return rc; -+ -+ /* -+ * The spec states that upon receipt of the RELEASE command "the device -+ * MUST complete all pending I/O messages for the specified stream ID". -+ * Thus, we consider the absence of I/O messages in the queue as an -+ * indication that the substream has been released. -+ */ -+ rc = wait_event_interruptible_timeout(vss->msg_empty, -+ !virtsnd_pcm_msg_pending_num(vss), -+ js); -+ if (rc <= 0) { -+ dev_warn(&snd->vdev->dev, "SID %u: failed to flush I/O queue\n", -+ vss->sid); -+ -+ return !rc ? -ETIMEDOUT : rc; -+ } -+ -+ vss->stopped = false; -+ -+ return 0; -+} -+ -+/** -+ * virtsnd_pcm_pointer() - Get the current hardware position for the PCM -+ * substream. -+ * @substream: Kernel ALSA substream. -+ * -+ * Context: Any context. Takes and releases the VirtIO substream spinlock. -+ * Return: Hardware position in frames inside [0 ... buffer_size) range. -+ */ -+static snd_pcm_uframes_t -+virtsnd_pcm_pointer(struct snd_pcm_substream *substream) -+{ -+ struct virtio_pcm_substream *vss = snd_pcm_substream_chip(substream); -+ snd_pcm_uframes_t hw_ptr = SNDRV_PCM_POS_XRUN; -+ unsigned long flags; -+ -+ spin_lock_irqsave(&vss->lock, flags); -+ if (!vss->xfer_xrun) -+ hw_ptr = bytes_to_frames(substream->runtime, vss->hw_ptr); -+ spin_unlock_irqrestore(&vss->lock, flags); -+ -+ return hw_ptr; -+} -+ -+/* PCM substream operators map. */ -+const struct snd_pcm_ops virtsnd_pcm_ops = { -+ .open = virtsnd_pcm_open, -+ .close = virtsnd_pcm_close, -+ .ioctl = snd_pcm_lib_ioctl, -+ .hw_params = virtsnd_pcm_hw_params, -+ .hw_free = virtsnd_pcm_hw_free, -+ .prepare = virtsnd_pcm_prepare, -+ .trigger = virtsnd_pcm_trigger, -+ .sync_stop = virtsnd_pcm_sync_stop, -+ .pointer = virtsnd_pcm_pointer, -+}; diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0007-ALSA-virtio-introduce-jack-support.patch b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0007-ALSA-virtio-introduce-jack-support.patch deleted file mode 100644 index af30421e0..000000000 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0007-ALSA-virtio-introduce-jack-support.patch +++ /dev/null @@ -1,351 +0,0 @@ -From 07692f250a96382b38daa2b7e2b96689f64d7a40 Mon Sep 17 00:00:00 2001 -From: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Date: Tue, 2 Mar 2021 17:47:07 +0100 -Subject: [PATCH] ALSA: virtio: introduce jack support - -Enumerate all available jacks and create ALSA controls. - -At the moment jacks have a simple implementation and can only be used -to receive notifications about a plugged in/out device. - -Signed-off-by: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Link: https://lore.kernel.org/r/20210302164709.3142702-8-anton.yakovlev@opensynergy.com -Signed-off-by: Takashi Iwai <tiwai@suse.de> -Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> ---- - sound/virtio/Makefile | 1 + - sound/virtio/virtio_card.c | 14 +++ - sound/virtio/virtio_card.h | 12 ++ - sound/virtio/virtio_jack.c | 233 +++++++++++++++++++++++++++++++++++++ - 4 files changed, 260 insertions(+) - create mode 100644 sound/virtio/virtio_jack.c - -diff --git a/sound/virtio/Makefile b/sound/virtio/Makefile -index 34493226793f..09f485291285 100644 ---- a/sound/virtio/Makefile -+++ b/sound/virtio/Makefile -@@ -5,6 +5,7 @@ obj-$(CONFIG_SND_VIRTIO) += virtio_snd.o - virtio_snd-objs := \ - virtio_card.o \ - virtio_ctl_msg.o \ -+ virtio_jack.o \ - virtio_pcm.o \ - virtio_pcm_msg.o \ - virtio_pcm_ops.o -diff --git a/sound/virtio/virtio_card.c b/sound/virtio/virtio_card.c -index 57b9b7f3a9c0..89bd66c1256e 100644 ---- a/sound/virtio/virtio_card.c -+++ b/sound/virtio/virtio_card.c -@@ -56,6 +56,10 @@ static void virtsnd_event_dispatch(struct virtio_snd *snd, - struct virtio_snd_event *event) - { - switch (le32_to_cpu(event->hdr.code)) { -+ case VIRTIO_SND_EVT_JACK_CONNECTED: -+ case VIRTIO_SND_EVT_JACK_DISCONNECTED: -+ virtsnd_jack_event(snd, event); -+ break; - case VIRTIO_SND_EVT_PCM_PERIOD_ELAPSED: - case VIRTIO_SND_EVT_PCM_XRUN: - virtsnd_pcm_event(snd, event); -@@ -219,10 +223,20 @@ static int virtsnd_build_devs(struct virtio_snd *snd) - VIRTIO_SND_CARD_NAME " at %s/%s", - dev_name(dev->parent), dev_name(dev)); - -+ rc = virtsnd_jack_parse_cfg(snd); -+ if (rc) -+ return rc; -+ - rc = virtsnd_pcm_parse_cfg(snd); - if (rc) - return rc; - -+ if (snd->njacks) { -+ rc = virtsnd_jack_build_devs(snd); -+ if (rc) -+ return rc; -+ } -+ - if (snd->nsubstreams) { - rc = virtsnd_pcm_build_devs(snd); - if (rc) -diff --git a/sound/virtio/virtio_card.h b/sound/virtio/virtio_card.h -index c43f9744d362..f154313c79fd 100644 ---- a/sound/virtio/virtio_card.h -+++ b/sound/virtio/virtio_card.h -@@ -18,6 +18,7 @@ - #define VIRTIO_SND_CARD_NAME "VirtIO SoundCard" - #define VIRTIO_SND_PCM_NAME "VirtIO PCM" - -+struct virtio_jack; - struct virtio_pcm_substream; - - /** -@@ -38,6 +39,8 @@ struct virtio_snd_queue { - * @ctl_msgs: Pending control request list. - * @event_msgs: Device events. - * @pcm_list: VirtIO PCM device list. -+ * @jacks: VirtIO jacks. -+ * @njacks: Number of jacks. - * @substreams: VirtIO PCM substreams. - * @nsubstreams: Number of PCM substreams. - */ -@@ -48,6 +51,8 @@ struct virtio_snd { - struct list_head ctl_msgs; - struct virtio_snd_event *event_msgs; - struct list_head pcm_list; -+ struct virtio_jack *jacks; -+ u32 njacks; - struct virtio_pcm_substream *substreams; - u32 nsubstreams; - }; -@@ -88,4 +93,11 @@ virtsnd_pcm_queue(struct virtio_pcm_substream *vss) - return virtsnd_rx_queue(vss->snd); - } - -+int virtsnd_jack_parse_cfg(struct virtio_snd *snd); -+ -+int virtsnd_jack_build_devs(struct virtio_snd *snd); -+ -+void virtsnd_jack_event(struct virtio_snd *snd, -+ struct virtio_snd_event *event); -+ - #endif /* VIRTIO_SND_CARD_H */ -diff --git a/sound/virtio/virtio_jack.c b/sound/virtio/virtio_jack.c -new file mode 100644 -index 000000000000..c69f1dcdcc84 ---- /dev/null -+++ b/sound/virtio/virtio_jack.c -@@ -0,0 +1,233 @@ -+// SPDX-License-Identifier: GPL-2.0+ -+/* -+ * virtio-snd: Virtio sound device -+ * Copyright (C) 2021 OpenSynergy GmbH -+ */ -+#include <linux/virtio_config.h> -+#include <sound/jack.h> -+#include <sound/hda_verbs.h> -+ -+#include "virtio_card.h" -+ -+/** -+ * DOC: Implementation Status -+ * -+ * At the moment jacks have a simple implementation and can only be used to -+ * receive notifications about a plugged in/out device. -+ * -+ * VIRTIO_SND_R_JACK_REMAP -+ * is not supported -+ */ -+ -+/** -+ * struct virtio_jack - VirtIO jack. -+ * @jack: Kernel jack control. -+ * @nid: Functional group node identifier. -+ * @features: Jack virtio feature bit map (1 << VIRTIO_SND_JACK_F_XXX). -+ * @defconf: Pin default configuration value. -+ * @caps: Pin capabilities value. -+ * @connected: Current jack connection status. -+ * @type: Kernel jack type (SND_JACK_XXX). -+ */ -+struct virtio_jack { -+ struct snd_jack *jack; -+ u32 nid; -+ u32 features; -+ u32 defconf; -+ u32 caps; -+ bool connected; -+ int type; -+}; -+ -+/** -+ * virtsnd_jack_get_label() - Get the name string for the jack. -+ * @vjack: VirtIO jack. -+ * -+ * Returns the jack name based on the default pin configuration value (see HDA -+ * specification). -+ * -+ * Context: Any context. -+ * Return: Name string. -+ */ -+static const char *virtsnd_jack_get_label(struct virtio_jack *vjack) -+{ -+ unsigned int defconf = vjack->defconf; -+ unsigned int device = -+ (defconf & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT; -+ unsigned int location = -+ (defconf & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT; -+ -+ switch (device) { -+ case AC_JACK_LINE_OUT: -+ return "Line Out"; -+ case AC_JACK_SPEAKER: -+ return "Speaker"; -+ case AC_JACK_HP_OUT: -+ return "Headphone"; -+ case AC_JACK_CD: -+ return "CD"; -+ case AC_JACK_SPDIF_OUT: -+ case AC_JACK_DIG_OTHER_OUT: -+ if (location == AC_JACK_LOC_HDMI) -+ return "HDMI Out"; -+ else -+ return "SPDIF Out"; -+ case AC_JACK_LINE_IN: -+ return "Line"; -+ case AC_JACK_AUX: -+ return "Aux"; -+ case AC_JACK_MIC_IN: -+ return "Mic"; -+ case AC_JACK_SPDIF_IN: -+ return "SPDIF In"; -+ case AC_JACK_DIG_OTHER_IN: -+ return "Digital In"; -+ default: -+ return "Misc"; -+ } -+} -+ -+/** -+ * virtsnd_jack_get_type() - Get the type for the jack. -+ * @vjack: VirtIO jack. -+ * -+ * Returns the jack type based on the default pin configuration value (see HDA -+ * specification). -+ * -+ * Context: Any context. -+ * Return: SND_JACK_XXX value. -+ */ -+static int virtsnd_jack_get_type(struct virtio_jack *vjack) -+{ -+ unsigned int defconf = vjack->defconf; -+ unsigned int device = -+ (defconf & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT; -+ -+ switch (device) { -+ case AC_JACK_LINE_OUT: -+ case AC_JACK_SPEAKER: -+ return SND_JACK_LINEOUT; -+ case AC_JACK_HP_OUT: -+ return SND_JACK_HEADPHONE; -+ case AC_JACK_SPDIF_OUT: -+ case AC_JACK_DIG_OTHER_OUT: -+ return SND_JACK_AVOUT; -+ case AC_JACK_MIC_IN: -+ return SND_JACK_MICROPHONE; -+ default: -+ return SND_JACK_LINEIN; -+ } -+} -+ -+/** -+ * virtsnd_jack_parse_cfg() - Parse the jack configuration. -+ * @snd: VirtIO sound device. -+ * -+ * This function is called during initial device initialization. -+ * -+ * Context: Any context that permits to sleep. -+ * Return: 0 on success, -errno on failure. -+ */ -+int virtsnd_jack_parse_cfg(struct virtio_snd *snd) -+{ -+ struct virtio_device *vdev = snd->vdev; -+ struct virtio_snd_jack_info *info; -+ u32 i; -+ int rc; -+ -+ virtio_cread_le(vdev, struct virtio_snd_config, jacks, &snd->njacks); -+ if (!snd->njacks) -+ return 0; -+ -+ snd->jacks = devm_kcalloc(&vdev->dev, snd->njacks, sizeof(*snd->jacks), -+ GFP_KERNEL); -+ if (!snd->jacks) -+ return -ENOMEM; -+ -+ info = kcalloc(snd->njacks, sizeof(*info), GFP_KERNEL); -+ if (!info) -+ return -ENOMEM; -+ -+ rc = virtsnd_ctl_query_info(snd, VIRTIO_SND_R_JACK_INFO, 0, snd->njacks, -+ sizeof(*info), info); -+ if (rc) -+ goto on_exit; -+ -+ for (i = 0; i < snd->njacks; ++i) { -+ struct virtio_jack *vjack = &snd->jacks[i]; -+ -+ vjack->nid = le32_to_cpu(info[i].hdr.hda_fn_nid); -+ vjack->features = le32_to_cpu(info[i].features); -+ vjack->defconf = le32_to_cpu(info[i].hda_reg_defconf); -+ vjack->caps = le32_to_cpu(info[i].hda_reg_caps); -+ vjack->connected = info[i].connected; -+ } -+ -+on_exit: -+ kfree(info); -+ -+ return rc; -+} -+ -+/** -+ * virtsnd_jack_build_devs() - Build ALSA controls for jacks. -+ * @snd: VirtIO sound device. -+ * -+ * Context: Any context that permits to sleep. -+ * Return: 0 on success, -errno on failure. -+ */ -+int virtsnd_jack_build_devs(struct virtio_snd *snd) -+{ -+ u32 i; -+ int rc; -+ -+ for (i = 0; i < snd->njacks; ++i) { -+ struct virtio_jack *vjack = &snd->jacks[i]; -+ -+ vjack->type = virtsnd_jack_get_type(vjack); -+ -+ rc = snd_jack_new(snd->card, virtsnd_jack_get_label(vjack), -+ vjack->type, &vjack->jack, true, true); -+ if (rc) -+ return rc; -+ -+ if (vjack->jack) -+ vjack->jack->private_data = vjack; -+ -+ snd_jack_report(vjack->jack, -+ vjack->connected ? vjack->type : 0); -+ } -+ -+ return 0; -+} -+ -+/** -+ * virtsnd_jack_event() - Handle the jack event notification. -+ * @snd: VirtIO sound device. -+ * @event: VirtIO sound event. -+ * -+ * Context: Interrupt context. -+ */ -+void virtsnd_jack_event(struct virtio_snd *snd, struct virtio_snd_event *event) -+{ -+ u32 jack_id = le32_to_cpu(event->data); -+ struct virtio_jack *vjack; -+ -+ if (jack_id >= snd->njacks) -+ return; -+ -+ vjack = &snd->jacks[jack_id]; -+ -+ switch (le32_to_cpu(event->hdr.code)) { -+ case VIRTIO_SND_EVT_JACK_CONNECTED: -+ vjack->connected = true; -+ break; -+ case VIRTIO_SND_EVT_JACK_DISCONNECTED: -+ vjack->connected = false; -+ break; -+ default: -+ return; -+ } -+ -+ snd_jack_report(vjack->jack, vjack->connected ? vjack->type : 0); -+} diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0008-ALSA-virtio-introduce-PCM-channel-map-support.patch b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0008-ALSA-virtio-introduce-PCM-channel-map-support.patch deleted file mode 100644 index d27ddb435..000000000 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0008-ALSA-virtio-introduce-PCM-channel-map-support.patch +++ /dev/null @@ -1,335 +0,0 @@ -From 861932797d59b807b4fcc8a2e12dafbddd5ca4d9 Mon Sep 17 00:00:00 2001 -From: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Date: Tue, 2 Mar 2021 17:47:08 +0100 -Subject: [PATCH] ALSA: virtio: introduce PCM channel map support - -Enumerate all available PCM channel maps and create ALSA controls. - -Signed-off-by: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Link: https://lore.kernel.org/r/20210302164709.3142702-9-anton.yakovlev@opensynergy.com -Signed-off-by: Takashi Iwai <tiwai@suse.de> -Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> ---- - sound/virtio/Makefile | 1 + - sound/virtio/virtio_card.c | 10 ++ - sound/virtio/virtio_card.h | 8 ++ - sound/virtio/virtio_chmap.c | 219 ++++++++++++++++++++++++++++++++++++ - sound/virtio/virtio_pcm.h | 4 + - 5 files changed, 242 insertions(+) - create mode 100644 sound/virtio/virtio_chmap.c - -diff --git a/sound/virtio/Makefile b/sound/virtio/Makefile -index 09f485291285..2742bddb8874 100644 ---- a/sound/virtio/Makefile -+++ b/sound/virtio/Makefile -@@ -4,6 +4,7 @@ obj-$(CONFIG_SND_VIRTIO) += virtio_snd.o - - virtio_snd-objs := \ - virtio_card.o \ -+ virtio_chmap.o \ - virtio_ctl_msg.o \ - virtio_jack.o \ - virtio_pcm.o \ -diff --git a/sound/virtio/virtio_card.c b/sound/virtio/virtio_card.c -index 89bd66c1256e..1c03fcc41c3b 100644 ---- a/sound/virtio/virtio_card.c -+++ b/sound/virtio/virtio_card.c -@@ -231,6 +231,10 @@ static int virtsnd_build_devs(struct virtio_snd *snd) - if (rc) - return rc; - -+ rc = virtsnd_chmap_parse_cfg(snd); -+ if (rc) -+ return rc; -+ - if (snd->njacks) { - rc = virtsnd_jack_build_devs(snd); - if (rc) -@@ -243,6 +247,12 @@ static int virtsnd_build_devs(struct virtio_snd *snd) - return rc; - } - -+ if (snd->nchmaps) { -+ rc = virtsnd_chmap_build_devs(snd); -+ if (rc) -+ return rc; -+ } -+ - return snd_card_register(snd->card); - } - -diff --git a/sound/virtio/virtio_card.h b/sound/virtio/virtio_card.h -index f154313c79fd..86ef3941895e 100644 ---- a/sound/virtio/virtio_card.h -+++ b/sound/virtio/virtio_card.h -@@ -43,6 +43,8 @@ struct virtio_snd_queue { - * @njacks: Number of jacks. - * @substreams: VirtIO PCM substreams. - * @nsubstreams: Number of PCM substreams. -+ * @chmaps: VirtIO channel maps. -+ * @nchmaps: Number of channel maps. - */ - struct virtio_snd { - struct virtio_device *vdev; -@@ -55,6 +57,8 @@ struct virtio_snd { - u32 njacks; - struct virtio_pcm_substream *substreams; - u32 nsubstreams; -+ struct virtio_snd_chmap_info *chmaps; -+ u32 nchmaps; - }; - - /* Message completion timeout in milliseconds (module parameter). */ -@@ -100,4 +104,8 @@ int virtsnd_jack_build_devs(struct virtio_snd *snd); - void virtsnd_jack_event(struct virtio_snd *snd, - struct virtio_snd_event *event); - -+int virtsnd_chmap_parse_cfg(struct virtio_snd *snd); -+ -+int virtsnd_chmap_build_devs(struct virtio_snd *snd); -+ - #endif /* VIRTIO_SND_CARD_H */ -diff --git a/sound/virtio/virtio_chmap.c b/sound/virtio/virtio_chmap.c -new file mode 100644 -index 000000000000..5bc924933a59 ---- /dev/null -+++ b/sound/virtio/virtio_chmap.c -@@ -0,0 +1,219 @@ -+// SPDX-License-Identifier: GPL-2.0+ -+/* -+ * virtio-snd: Virtio sound device -+ * Copyright (C) 2021 OpenSynergy GmbH -+ */ -+#include <linux/virtio_config.h> -+ -+#include "virtio_card.h" -+ -+/* VirtIO->ALSA channel position map */ -+static const u8 g_v2a_position_map[] = { -+ [VIRTIO_SND_CHMAP_NONE] = SNDRV_CHMAP_UNKNOWN, -+ [VIRTIO_SND_CHMAP_NA] = SNDRV_CHMAP_NA, -+ [VIRTIO_SND_CHMAP_MONO] = SNDRV_CHMAP_MONO, -+ [VIRTIO_SND_CHMAP_FL] = SNDRV_CHMAP_FL, -+ [VIRTIO_SND_CHMAP_FR] = SNDRV_CHMAP_FR, -+ [VIRTIO_SND_CHMAP_RL] = SNDRV_CHMAP_RL, -+ [VIRTIO_SND_CHMAP_RR] = SNDRV_CHMAP_RR, -+ [VIRTIO_SND_CHMAP_FC] = SNDRV_CHMAP_FC, -+ [VIRTIO_SND_CHMAP_LFE] = SNDRV_CHMAP_LFE, -+ [VIRTIO_SND_CHMAP_SL] = SNDRV_CHMAP_SL, -+ [VIRTIO_SND_CHMAP_SR] = SNDRV_CHMAP_SR, -+ [VIRTIO_SND_CHMAP_RC] = SNDRV_CHMAP_RC, -+ [VIRTIO_SND_CHMAP_FLC] = SNDRV_CHMAP_FLC, -+ [VIRTIO_SND_CHMAP_FRC] = SNDRV_CHMAP_FRC, -+ [VIRTIO_SND_CHMAP_RLC] = SNDRV_CHMAP_RLC, -+ [VIRTIO_SND_CHMAP_RRC] = SNDRV_CHMAP_RRC, -+ [VIRTIO_SND_CHMAP_FLW] = SNDRV_CHMAP_FLW, -+ [VIRTIO_SND_CHMAP_FRW] = SNDRV_CHMAP_FRW, -+ [VIRTIO_SND_CHMAP_FLH] = SNDRV_CHMAP_FLH, -+ [VIRTIO_SND_CHMAP_FCH] = SNDRV_CHMAP_FCH, -+ [VIRTIO_SND_CHMAP_FRH] = SNDRV_CHMAP_FRH, -+ [VIRTIO_SND_CHMAP_TC] = SNDRV_CHMAP_TC, -+ [VIRTIO_SND_CHMAP_TFL] = SNDRV_CHMAP_TFL, -+ [VIRTIO_SND_CHMAP_TFR] = SNDRV_CHMAP_TFR, -+ [VIRTIO_SND_CHMAP_TFC] = SNDRV_CHMAP_TFC, -+ [VIRTIO_SND_CHMAP_TRL] = SNDRV_CHMAP_TRL, -+ [VIRTIO_SND_CHMAP_TRR] = SNDRV_CHMAP_TRR, -+ [VIRTIO_SND_CHMAP_TRC] = SNDRV_CHMAP_TRC, -+ [VIRTIO_SND_CHMAP_TFLC] = SNDRV_CHMAP_TFLC, -+ [VIRTIO_SND_CHMAP_TFRC] = SNDRV_CHMAP_TFRC, -+ [VIRTIO_SND_CHMAP_TSL] = SNDRV_CHMAP_TSL, -+ [VIRTIO_SND_CHMAP_TSR] = SNDRV_CHMAP_TSR, -+ [VIRTIO_SND_CHMAP_LLFE] = SNDRV_CHMAP_LLFE, -+ [VIRTIO_SND_CHMAP_RLFE] = SNDRV_CHMAP_RLFE, -+ [VIRTIO_SND_CHMAP_BC] = SNDRV_CHMAP_BC, -+ [VIRTIO_SND_CHMAP_BLC] = SNDRV_CHMAP_BLC, -+ [VIRTIO_SND_CHMAP_BRC] = SNDRV_CHMAP_BRC -+}; -+ -+/** -+ * virtsnd_chmap_parse_cfg() - Parse the channel map configuration. -+ * @snd: VirtIO sound device. -+ * -+ * This function is called during initial device initialization. -+ * -+ * Context: Any context that permits to sleep. -+ * Return: 0 on success, -errno on failure. -+ */ -+int virtsnd_chmap_parse_cfg(struct virtio_snd *snd) -+{ -+ struct virtio_device *vdev = snd->vdev; -+ u32 i; -+ int rc; -+ -+ virtio_cread_le(vdev, struct virtio_snd_config, chmaps, &snd->nchmaps); -+ if (!snd->nchmaps) -+ return 0; -+ -+ snd->chmaps = devm_kcalloc(&vdev->dev, snd->nchmaps, -+ sizeof(*snd->chmaps), GFP_KERNEL); -+ if (!snd->chmaps) -+ return -ENOMEM; -+ -+ rc = virtsnd_ctl_query_info(snd, VIRTIO_SND_R_CHMAP_INFO, 0, -+ snd->nchmaps, sizeof(*snd->chmaps), -+ snd->chmaps); -+ if (rc) -+ return rc; -+ -+ /* Count the number of channel maps per each PCM device/stream. */ -+ for (i = 0; i < snd->nchmaps; ++i) { -+ struct virtio_snd_chmap_info *info = &snd->chmaps[i]; -+ u32 nid = le32_to_cpu(info->hdr.hda_fn_nid); -+ struct virtio_pcm *vpcm; -+ struct virtio_pcm_stream *vs; -+ -+ vpcm = virtsnd_pcm_find_or_create(snd, nid); -+ if (IS_ERR(vpcm)) -+ return PTR_ERR(vpcm); -+ -+ switch (info->direction) { -+ case VIRTIO_SND_D_OUTPUT: -+ vs = &vpcm->streams[SNDRV_PCM_STREAM_PLAYBACK]; -+ break; -+ case VIRTIO_SND_D_INPUT: -+ vs = &vpcm->streams[SNDRV_PCM_STREAM_CAPTURE]; -+ break; -+ default: -+ dev_err(&vdev->dev, -+ "chmap #%u: unknown direction (%u)\n", i, -+ info->direction); -+ return -EINVAL; -+ } -+ -+ vs->nchmaps++; -+ } -+ -+ return 0; -+} -+ -+/** -+ * virtsnd_chmap_add_ctls() - Create an ALSA control for channel maps. -+ * @pcm: ALSA PCM device. -+ * @direction: PCM stream direction (SNDRV_PCM_STREAM_XXX). -+ * @vs: VirtIO PCM stream. -+ * -+ * Context: Any context. -+ * Return: 0 on success, -errno on failure. -+ */ -+static int virtsnd_chmap_add_ctls(struct snd_pcm *pcm, int direction, -+ struct virtio_pcm_stream *vs) -+{ -+ u32 i; -+ int max_channels = 0; -+ -+ for (i = 0; i < vs->nchmaps; i++) -+ if (max_channels < vs->chmaps[i].channels) -+ max_channels = vs->chmaps[i].channels; -+ -+ return snd_pcm_add_chmap_ctls(pcm, direction, vs->chmaps, max_channels, -+ 0, NULL); -+} -+ -+/** -+ * virtsnd_chmap_build_devs() - Build ALSA controls for channel maps. -+ * @snd: VirtIO sound device. -+ * -+ * Context: Any context. -+ * Return: 0 on success, -errno on failure. -+ */ -+int virtsnd_chmap_build_devs(struct virtio_snd *snd) -+{ -+ struct virtio_device *vdev = snd->vdev; -+ struct virtio_pcm *vpcm; -+ struct virtio_pcm_stream *vs; -+ u32 i; -+ int rc; -+ -+ /* Allocate channel map elements per each PCM device/stream. */ -+ list_for_each_entry(vpcm, &snd->pcm_list, list) { -+ for (i = 0; i < ARRAY_SIZE(vpcm->streams); ++i) { -+ vs = &vpcm->streams[i]; -+ -+ if (!vs->nchmaps) -+ continue; -+ -+ vs->chmaps = devm_kcalloc(&vdev->dev, vs->nchmaps + 1, -+ sizeof(*vs->chmaps), -+ GFP_KERNEL); -+ if (!vs->chmaps) -+ return -ENOMEM; -+ -+ vs->nchmaps = 0; -+ } -+ } -+ -+ /* Initialize channel maps per each PCM device/stream. */ -+ for (i = 0; i < snd->nchmaps; ++i) { -+ struct virtio_snd_chmap_info *info = &snd->chmaps[i]; -+ unsigned int channels = info->channels; -+ unsigned int ch; -+ struct snd_pcm_chmap_elem *chmap; -+ -+ vpcm = virtsnd_pcm_find(snd, le32_to_cpu(info->hdr.hda_fn_nid)); -+ if (IS_ERR(vpcm)) -+ return PTR_ERR(vpcm); -+ -+ if (info->direction == VIRTIO_SND_D_OUTPUT) -+ vs = &vpcm->streams[SNDRV_PCM_STREAM_PLAYBACK]; -+ else -+ vs = &vpcm->streams[SNDRV_PCM_STREAM_CAPTURE]; -+ -+ chmap = &vs->chmaps[vs->nchmaps++]; -+ -+ if (channels > ARRAY_SIZE(chmap->map)) -+ channels = ARRAY_SIZE(chmap->map); -+ -+ chmap->channels = channels; -+ -+ for (ch = 0; ch < channels; ++ch) { -+ u8 position = info->positions[ch]; -+ -+ if (position >= ARRAY_SIZE(g_v2a_position_map)) -+ return -EINVAL; -+ -+ chmap->map[ch] = g_v2a_position_map[position]; -+ } -+ } -+ -+ /* Create an ALSA control per each PCM device/stream. */ -+ list_for_each_entry(vpcm, &snd->pcm_list, list) { -+ if (!vpcm->pcm) -+ continue; -+ -+ for (i = 0; i < ARRAY_SIZE(vpcm->streams); ++i) { -+ vs = &vpcm->streams[i]; -+ -+ if (!vs->nchmaps) -+ continue; -+ -+ rc = virtsnd_chmap_add_ctls(vpcm->pcm, i, vs); -+ if (rc) -+ return rc; -+ } -+ } -+ -+ return 0; -+} -diff --git a/sound/virtio/virtio_pcm.h b/sound/virtio/virtio_pcm.h -index efd0228746cf..1353fdc9bd69 100644 ---- a/sound/virtio/virtio_pcm.h -+++ b/sound/virtio/virtio_pcm.h -@@ -63,10 +63,14 @@ struct virtio_pcm_substream { - * struct virtio_pcm_stream - VirtIO PCM stream. - * @substreams: VirtIO substreams belonging to the stream. - * @nsubstreams: Number of substreams. -+ * @chmaps: Kernel channel maps belonging to the stream. -+ * @nchmaps: Number of channel maps. - */ - struct virtio_pcm_stream { - struct virtio_pcm_substream **substreams; - u32 nsubstreams; -+ struct snd_pcm_chmap_elem *chmaps; -+ u32 nchmaps; - }; - - /** diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0009-ALSA-virtio-introduce-device-suspend-resume-support.patch b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0009-ALSA-virtio-introduce-device-suspend-resume-support.patch deleted file mode 100644 index b7d278fd0..000000000 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0009-ALSA-virtio-introduce-device-suspend-resume-support.patch +++ /dev/null @@ -1,174 +0,0 @@ -From b173fb2a0eb0067fc665ba48f9b2b8b5f991c078 Mon Sep 17 00:00:00 2001 -From: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Date: Tue, 2 Mar 2021 17:47:09 +0100 -Subject: [PATCH] ALSA: virtio: introduce device suspend/resume support - -All running PCM substreams are stopped on device suspend and restarted -on device resume. - -Signed-off-by: Anton Yakovlev <anton.yakovlev@opensynergy.com> -Link: https://lore.kernel.org/r/20210302164709.3142702-10-anton.yakovlev@opensynergy.com -Signed-off-by: Takashi Iwai <tiwai@suse.de> -Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com> ---- - sound/virtio/virtio_card.c | 56 +++++++++++++++++++++++++++++++++++ - sound/virtio/virtio_pcm.h | 3 ++ - sound/virtio/virtio_pcm_ops.c | 33 ++++++++++++++++----- - 3 files changed, 85 insertions(+), 7 deletions(-) - -diff --git a/sound/virtio/virtio_card.c b/sound/virtio/virtio_card.c -index 1c03fcc41c3b..ae9128063917 100644 ---- a/sound/virtio/virtio_card.c -+++ b/sound/virtio/virtio_card.c -@@ -362,6 +362,58 @@ static void virtsnd_remove(struct virtio_device *vdev) - kfree(snd->event_msgs); - } - -+#ifdef CONFIG_PM_SLEEP -+/** -+ * virtsnd_freeze() - Suspend device. -+ * @vdev: VirtIO parent device. -+ * -+ * Context: Any context. -+ * Return: 0 on success, -errno on failure. -+ */ -+static int virtsnd_freeze(struct virtio_device *vdev) -+{ -+ struct virtio_snd *snd = vdev->priv; -+ unsigned int i; -+ -+ virtsnd_disable_event_vq(snd); -+ virtsnd_ctl_msg_cancel_all(snd); -+ -+ vdev->config->del_vqs(vdev); -+ vdev->config->reset(vdev); -+ -+ for (i = 0; i < snd->nsubstreams; ++i) -+ cancel_work_sync(&snd->substreams[i].elapsed_period); -+ -+ kfree(snd->event_msgs); -+ snd->event_msgs = NULL; -+ -+ return 0; -+} -+ -+/** -+ * virtsnd_restore() - Resume device. -+ * @vdev: VirtIO parent device. -+ * -+ * Context: Any context. -+ * Return: 0 on success, -errno on failure. -+ */ -+static int virtsnd_restore(struct virtio_device *vdev) -+{ -+ struct virtio_snd *snd = vdev->priv; -+ int rc; -+ -+ rc = virtsnd_find_vqs(snd); -+ if (rc) -+ return rc; -+ -+ virtio_device_ready(vdev); -+ -+ virtsnd_enable_event_vq(snd); -+ -+ return 0; -+} -+#endif /* CONFIG_PM_SLEEP */ -+ - static const struct virtio_device_id id_table[] = { - { VIRTIO_ID_SOUND, VIRTIO_DEV_ANY_ID }, - { 0 }, -@@ -374,6 +426,10 @@ static struct virtio_driver virtsnd_driver = { - .validate = virtsnd_validate, - .probe = virtsnd_probe, - .remove = virtsnd_remove, -+#ifdef CONFIG_PM_SLEEP -+ .freeze = virtsnd_freeze, -+ .restore = virtsnd_restore, -+#endif - }; - - static int __init init(void) -diff --git a/sound/virtio/virtio_pcm.h b/sound/virtio/virtio_pcm.h -index 1353fdc9bd69..062eb8e8f2cf 100644 ---- a/sound/virtio/virtio_pcm.h -+++ b/sound/virtio/virtio_pcm.h -@@ -31,6 +31,8 @@ struct virtio_pcm_msg; - * @xfer_xrun: Data underflow/overflow state (0 - no xrun, 1 - xrun). - * @stopped: True if the substream is stopped and must be released on the device - * side. -+ * @suspended: True if the substream is suspended and must be reconfigured on -+ * the device side at resume. - * @msgs: Allocated I/O messages. - * @nmsgs: Number of allocated I/O messages. - * @msg_last_enqueued: Index of the last I/O message added to the virtqueue. -@@ -52,6 +54,7 @@ struct virtio_pcm_substream { - bool xfer_enabled; - bool xfer_xrun; - bool stopped; -+ bool suspended; - struct virtio_pcm_msg **msgs; - unsigned int nmsgs; - int msg_last_enqueued; -diff --git a/sound/virtio/virtio_pcm_ops.c b/sound/virtio/virtio_pcm_ops.c -index 0682a2df6c8c..f8bfb87624be 100644 ---- a/sound/virtio/virtio_pcm_ops.c -+++ b/sound/virtio/virtio_pcm_ops.c -@@ -115,6 +115,7 @@ static int virtsnd_pcm_open(struct snd_pcm_substream *substream) - SNDRV_PCM_HW_PARAM_PERIODS); - - vss->stopped = !!virtsnd_pcm_msg_pending_num(vss); -+ vss->suspended = false; - - /* - * If the substream has already been used, then the I/O queue may be in -@@ -272,16 +273,31 @@ static int virtsnd_pcm_prepare(struct snd_pcm_substream *substream) - struct virtio_device *vdev = vss->snd->vdev; - struct virtio_snd_msg *msg; - -- if (virtsnd_pcm_msg_pending_num(vss)) { -- dev_err(&vdev->dev, "SID %u: invalid I/O queue state\n", -- vss->sid); -- return -EBADFD; -+ if (!vss->suspended) { -+ if (virtsnd_pcm_msg_pending_num(vss)) { -+ dev_err(&vdev->dev, "SID %u: invalid I/O queue state\n", -+ vss->sid); -+ return -EBADFD; -+ } -+ -+ vss->buffer_bytes = snd_pcm_lib_buffer_bytes(substream); -+ vss->hw_ptr = 0; -+ vss->msg_last_enqueued = -1; -+ } else { -+ struct snd_pcm_runtime *runtime = substream->runtime; -+ unsigned int buffer_bytes = snd_pcm_lib_buffer_bytes(substream); -+ unsigned int period_bytes = snd_pcm_lib_period_bytes(substream); -+ int rc; -+ -+ rc = virtsnd_pcm_dev_set_params(vss, buffer_bytes, period_bytes, -+ runtime->channels, -+ runtime->format, runtime->rate); -+ if (rc) -+ return rc; - } - -- vss->buffer_bytes = snd_pcm_lib_buffer_bytes(substream); -- vss->hw_ptr = 0; - vss->xfer_xrun = false; -- vss->msg_last_enqueued = -1; -+ vss->suspended = false; - vss->msg_count = 0; - - msg = virtsnd_pcm_ctl_msg_alloc(vss, VIRTIO_SND_R_PCM_PREPARE, -@@ -336,6 +352,9 @@ static int virtsnd_pcm_trigger(struct snd_pcm_substream *substream, int command) - } - - return virtsnd_ctl_msg_send_sync(snd, msg); -+ case SNDRV_PCM_TRIGGER_SUSPEND: -+ vss->suspended = true; -+ fallthrough; - case SNDRV_PCM_TRIGGER_STOP: - vss->stopped = true; - fallthrough; diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/virtio-snd.scc b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/virtio-snd.scc index ba7b4ceb6..a1fc8bb7d 100644 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/virtio-snd.scc +++ b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/virtio-snd.scc @@ -1,11 +1,2 @@ # SPDX-License-Identifier: MIT kconf hardware virtio-snd.cfg -patch 0001-uapi-virtio_ids-add-a-sound-device-type-ID-from-OASI.patch -patch 0002-ALSA-virtio-add-virtio-sound-driver.patch -patch 0003-ALSA-virtio-handling-control-messages.patch -patch 0004-ALSA-virtio-build-PCM-devices-and-substream-hardware.patch -patch 0005-ALSA-virtio-handling-control-and-I-O-messages-for-th.patch -patch 0006-ALSA-virtio-PCM-substream-operators.patch -patch 0007-ALSA-virtio-introduce-jack-support.patch -patch 0008-ALSA-virtio-introduce-PCM-channel-map-support.patch -patch 0009-ALSA-virtio-introduce-device-suspend-resume-support.patch diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio.scc b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio.scc index 755cde94e..c48cadbd9 100644 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio.scc +++ b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio.scc @@ -1,5 +1,4 @@ # SPDX-License-Identifier: MIT kconf hardware virtio.cfg -patch virtio-input-add-multi-touch-support.patch include virtio-snd/virtio-snd.scc diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto_%.bbappend b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto_%.bbappend index 0f255cddb..8b5e92a20 100644 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto_%.bbappend +++ b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto_%.bbappend @@ -5,4 +5,4 @@ SRC_URI:append:virtio-all = " \ file://virtio-kmeta/bsp/virtio/virtio-aarch64-${LINUX_KERNEL_TYPE}.scc \ " -COMPATIBLE_MACHINE_virtio-aarch64 = "virtio-aarch64" +COMPATIBLE_MACHINE:virtio-aarch64 = "virtio-aarch64" diff --git a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto_5.10.bb b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto_5.10.bb deleted file mode 100644 index 322ae51ea..000000000 --- a/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto_5.10.bb +++ /dev/null @@ -1,58 +0,0 @@ -KBRANCH ?= "v5.10/standard/base" - -require recipes-kernel/linux/linux-yocto.inc - -# board specific branches -KBRANCH:qemuarm ?= "v5.10/standard/arm-versatile-926ejs" -KBRANCH:qemuarm64 ?= "v5.10/standard/qemuarm64" -KBRANCH:qemumips ?= "v5.10/standard/mti-malta32" -KBRANCH:qemuppc ?= "v5.10/standard/qemuppc" -KBRANCH:qemuriscv64 ?= "v5.10/standard/base" -KBRANCH:qemuriscv32 ?= "v5.10/standard/base" -KBRANCH:qemux86 ?= "v5.10/standard/base" -KBRANCH:qemux86-64 ?= "v5.10/standard/base" -KBRANCH:qemumips64 ?= "v5.10/standard/mti-malta64" - -SRCREV_machine:qemuarm ?= "d8551cae1ccdbe062a5c6068ce39ea8f4e1c72db" -SRCREV_machine:qemuarm64 ?= "cf5b0320cf4544d3db9ce3ddd6ddb7553a610651" -SRCREV_machine:qemumips ?= "7f1f1ad2f2d90b1b070c6b0a82f0add9aa492e37" -SRCREV_machine:qemuppc ?= "cf5b0320cf4544d3db9ce3ddd6ddb7553a610651" -SRCREV_machine:qemuriscv64 ?= "cf5b0320cf4544d3db9ce3ddd6ddb7553a610651" -SRCREV_machine:qemuriscv32 ?= "cf5b0320cf4544d3db9ce3ddd6ddb7553a610651" -SRCREV_machine:qemux86 ?= "cf5b0320cf4544d3db9ce3ddd6ddb7553a610651" -SRCREV_machine:qemux86-64 ?= "cf5b0320cf4544d3db9ce3ddd6ddb7553a610651" -SRCREV_machine:qemumips64 ?= "fd5ac097b891642eea13659bea536f3ec5910d6d" -SRCREV_machine ?= "cf5b0320cf4544d3db9ce3ddd6ddb7553a610651" -SRCREV_meta ?= "031f6c76e488a3563f35258c72ff1de3e25a512e" - -# remap qemuarm to qemuarma15 for the 5.8 kernel -# KMACHINE:qemuarm ?= "qemuarma15" - -SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;name=machine;branch=${KBRANCH}; \ - git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-5.10;destsuffix=${KMETA}" - -LIC_FILES_CHKSUM = "file://COPYING;md5=6bc538ed5bd9a7fc9398086aedcd7e46" -LINUX_VERSION ?= "5.10.25" - -DEPENDS += "${@bb.utils.contains('ARCH', 'x86', 'elfutils-native', '', d)}" -DEPENDS += "openssl-native util-linux-native" -DEPENDS += "gmp-native" - -PV = "${LINUX_VERSION}+git${SRCPV}" - -KMETA = "kernel-meta" -KCONF_BSP_AUDIT_LEVEL = "1" - -KERNEL_DEVICETREE:qemuarmv5 = "versatile-pb.dtb" - -COMPATIBLE_MACHINE = "qemuarm|qemuarmv5|qemuarm64|qemux86|qemuppc|qemuppc64|qemumips|qemumips64|qemux86-64|qemuriscv64|qemuriscv32" - -# Functionality flags -KERNEL_EXTRA_FEATURES ?= "features/netfilter/netfilter.scc" -KERNEL_FEATURES:append = " ${KERNEL_EXTRA_FEATURES}" -KERNEL_FEATURES:append:qemuall=" cfg/virtio.scc features/drm-bochs/drm-bochs.scc" -KERNEL_FEATURES:append:qemux86=" cfg/sound.scc cfg/paravirt_kvm.scc" -KERNEL_FEATURES:append:qemux86-64=" cfg/sound.scc cfg/paravirt_kvm.scc" -KERNEL_FEATURES:append = " ${@bb.utils.contains("TUNE_FEATURES", "mx32", " cfg/x32.scc", "", d)}" -KERNEL_FEATURES:append = " ${@bb.utils.contains("DISTRO_FEATURES", "ptest", " features/scsi/scsi-debug.scc", "", d)}" -KERNEL_FEATURES:append = " ${@bb.utils.contains("DISTRO_FEATURES", "ptest", " features/gpio/mockup.scc", "", d)}"
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