diff options
Diffstat (limited to 'meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0007-ALSA-virtio-introduce-jack-support.patch')
| -rw-r--r-- | meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0007-ALSA-virtio-introduce-jack-support.patch | 351 |
1 files changed, 351 insertions, 0 deletions
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 new file mode 100644 index 000000000..af30421e0 --- /dev/null +++ b/meta-agl-bsp/virtualization-layer/recipes-kernel/linux/linux-yocto/virtio-kmeta/bsp/virtio/virtio-snd/0007-ALSA-virtio-introduce-jack-support.patch @@ -0,0 +1,351 @@ +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); ++} |