Message ID | 20231215214955.12110-38-quic_wcheng@quicinc.com |
---|---|
State | New |
Headers |
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Series |
Introduce QC USB SND audio offloading support
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Commit Message
Wesley Cheng
Dec. 15, 2023, 9:49 p.m. UTC
Utilize the card and PCM index coming from the USB QMI stream request.
This field follows what is set by the ASoC USB backend, and could
potentially carry information about a specific device selected through the
ASoC USB backend. The backend also has information about the last USB
sound device plugged in, so it can choose to select the last device plugged
in, accordingly.
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
---
sound/usb/qcom/qc_audio_offload.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/sound/usb/qcom/qc_audio_offload.c b/sound/usb/qcom/qc_audio_offload.c index 1104499f89f7..e0a010a40b97 100644 --- a/sound/usb/qcom/qc_audio_offload.c +++ b/sound/usb/qcom/qc_audio_offload.c @@ -106,8 +106,6 @@ struct uaudio_qmi_dev { bool er_mapped; /* reference count to number of possible consumers */ atomic_t qdev_in_use; - /* idx to last udev card number plugged in */ - unsigned int last_card_num; }; struct uaudio_dev { @@ -1243,7 +1241,7 @@ static int prepare_qmi_response(struct snd_usb_substream *subs, pcm_dev_num = (req_msg->usb_token & QMI_STREAM_REQ_DEV_NUM_MASK) >> 8; xfer_buf_len = req_msg->xfer_buff_size; - card_num = uaudio_qdev->last_card_num; + card_num = (req_msg->usb_token & QMI_STREAM_REQ_CARD_NUM_MASK) >> 16; if (!uadev[card_num].ctrl_intf) { dev_err(&subs->dev->dev, "audio ctrl intf info not cached\n"); @@ -1436,8 +1434,7 @@ static void handle_uaudio_stream_req(struct qmi_handle *handle, direction = (req_msg->usb_token & QMI_STREAM_REQ_DIRECTION); pcm_dev_num = (req_msg->usb_token & QMI_STREAM_REQ_DEV_NUM_MASK) >> 8; - pcm_card_num = req_msg->enable ? uaudio_qdev->last_card_num : - ffs(uaudio_qdev->card_slot) - 1; + pcm_card_num = (req_msg->usb_token & QMI_STREAM_REQ_CARD_NUM_MASK) >> 16; if (pcm_card_num >= SNDRV_CARDS) { ret = -EINVAL; goto response; @@ -1646,7 +1643,6 @@ static void qc_usb_audio_offload_probe(struct snd_usb_audio *chip) sdev->num_capture = usb_qmi_get_pcm_num(chip, 1); uadev[chip->card->number].sdev = sdev; - uaudio_qdev->last_card_num = chip->card->number; snd_soc_usb_connect(usb_get_usb_backend(udev), sdev); mutex_unlock(&chip->mutex);