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[177.4.161.87]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2ee3b29b2casm18920019eec.14.2026.05.04.21.40.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 May 2026 21:40:29 -0700 (PDT) From: =?utf-8?q?C=C3=A1ssio_Gabriel?= Date: Tue, 05 May 2026 01:40:21 -0300 Subject: [PATCH] ALSA: virtio: Add missing 384 kHz PCM rate mapping Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260505-alsa-virtio-384k-rate-v1-1-ca092185bb03@gmail.com> X-B4-Tracking: v=1; b=H4sIAAAAAAAC/yXMQQ6CQAxA0auQrm2ChTDoVQyLih2oGjDtSEwId 3eU5Vv8v4KLqTicixVMFnWdp4zjoYB+5GkQ1Fs2UElNWRMhP51xUUs6Y9XWDzROgoGqKKcQKHI DuX2ZRP38v5dut7+vd+nTbwbb9gWphXDBeQAAAA== X-Change-ID: 20260422-alsa-virtio-384k-rate-723fe9772fa6 To: Takashi Iwai , Anton Yakovlev , "Michael S. Tsirkin" , Jaroslav Kysela Cc: virtualization@lists.linux.dev, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, =?utf-8?q?C=C3=A1ssio_Gabriel?= X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2351; i=cassiogabrielcontato@gmail.com; h=from:subject:message-id; bh=xg+AzQSH02m2ChqkHlHOL0nslwkp1ELZhv5oYpTQd1Y=; b=owGbwMvMwCV2IdZeKur/u2bG02pJDJk/S3aFnYviPKy76r+C6bLPDEvun9saHRe3+O5Dt1K7P MbT7xu3d5SyMIhxMciKKbKsTlpkuafrwdX6uBUeMHNYmUCGMHBxCsBEFFwZGS5E8Yk32zOpbn3G +2Ujh8qBGSlftlWk3KkUXpelIPmvMI2R4defJeFKDCLdGtuZPu+qEvm5deurfXqcrccFJHzfPL3 /hQEA X-Developer-Key: i=cassiogabrielcontato@gmail.com; a=openpgp; fpr=AB62A239BC8AE0D57F5EA848D05D3F1A5AFFEE83 The VirtIO sound UAPI defines VIRTIO_SND_PCM_RATE_384000, and ALSA has SNDRV_PCM_RATE_384000. However, virtio-snd's rate conversion tables stop at 192 kHz. A device advertising only 384 kHz is rejected as having no supported PCM frame rates. A device advertising 384 kHz together with lower rates does not expose 384 kHz through the ALSA hardware constraints. The selected ALSA rate also needs a reverse mapping for SET_PARAMS. Add the missing 384 kHz entries to both conversion tables. Fixes: 29b96bf50ba9 ("ALSA: virtio: build PCM devices and substream hardware descriptors") Fixes: da76e9f3e43a ("ALSA: virtio: PCM substream operators") Cc: stable@vger.kernel.org Signed-off-by: Cássio Gabriel --- sound/virtio/virtio_pcm.c | 3 ++- sound/virtio/virtio_pcm_ops.c | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/sound/virtio/virtio_pcm.c b/sound/virtio/virtio_pcm.c index eb9cc8131905..be3893de40a5 100644 --- a/sound/virtio/virtio_pcm.c +++ b/sound/virtio/virtio_pcm.c @@ -77,7 +77,8 @@ static const struct virtsnd_v2a_rate g_v2a_rate_map[] = { [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 } + [VIRTIO_SND_PCM_RATE_192000] = { SNDRV_PCM_RATE_192000, 192000 }, + [VIRTIO_SND_PCM_RATE_384000] = { SNDRV_PCM_RATE_384000, 384000 } }; /** diff --git a/sound/virtio/virtio_pcm_ops.c b/sound/virtio/virtio_pcm_ops.c index 6297a9c61e70..1105e7ff3523 100644 --- a/sound/virtio/virtio_pcm_ops.c +++ b/sound/virtio/virtio_pcm_ops.c @@ -90,7 +90,8 @@ static const struct virtsnd_a2v_rate g_a2v_rate_map[] = { { 88200, VIRTIO_SND_PCM_RATE_88200 }, { 96000, VIRTIO_SND_PCM_RATE_96000 }, { 176400, VIRTIO_SND_PCM_RATE_176400 }, - { 192000, VIRTIO_SND_PCM_RATE_192000 } + { 192000, VIRTIO_SND_PCM_RATE_192000 }, + { 384000, VIRTIO_SND_PCM_RATE_384000 } }; static int virtsnd_pcm_sync_stop(struct snd_pcm_substream *substream); --- base-commit: fac9a31701803e4e41fdb7b5c71582c65cf47176 change-id: 20260422-alsa-virtio-384k-rate-723fe9772fa6 Best regards, -- Cássio Gabriel