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ALSA: usb-audio: Move playback_first flag into quirk_flags 

The snd_usb_audio.playback_first flag is used by the implicit feedback
mode handling, and this can be also moved to quirk_flags.

Link: https://lore.kernel.org/r/20210729073855.19043-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2021-07-29 09:38:51 +02:00
parent c1b034a421
commit 019c7f912c
3 changed files with 7 additions and 5 deletions
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2
sound/usb/endpoint.c
View File

@ -1382,7 +1382,7 @@ int snd_usb_endpoint_start(struct snd_usb_endpoint *ep)
goto __error;
if (snd_usb_endpoint_implicit_feedback_sink(ep) &&
!ep->chip->playback_first) {
!(ep->chip->quirk_flags & QUIRK_FLAG_PLAYBACK_FIRST)) {
for (i = 0; i < ep->nurbs; i++) {
struct snd_urb_ctx *ctx = ep->urb + i;
list_add_tail(&ctx->ready_list, &ep->ready_playback_urbs);

6
sound/usb/implicit.c
View File

@ -171,7 +171,7 @@ static int add_roland_implicit_fb(struct snd_usb_audio *chip,
if (!usb_endpoint_is_isoc_in(epd) ||
(epd->bmAttributes & USB_ENDPOINT_SYNCTYPE) != USB_ENDPOINT_SYNC_ASYNC)
return 0;
chip->playback_first = 1;
chip->quirk_flags |= QUIRK_FLAG_PLAYBACK_FIRST;
return add_implicit_fb_sync_ep(chip, fmt, epd->bEndpointAddress, 0,
alts->desc.bInterfaceNumber, alts);
}
@ -320,7 +320,7 @@ static int audioformat_implicit_fb_quirk(struct snd_usb_audio *chip,
case IMPLICIT_FB_FIXED:
return 0; /* no quirk */
case IMPLICIT_FB_BOTH:
chip->playback_first = 1;
chip->quirk_flags |= QUIRK_FLAG_PLAYBACK_FIRST;
return add_generic_implicit_fb(chip, fmt, alts);
}
}
@ -344,7 +344,7 @@ static int audioformat_implicit_fb_quirk(struct snd_usb_audio *chip,
/* Pioneer devices with vendor spec class */
if (is_pioneer_implicit_fb(chip, alts)) {
chip->playback_first = 1;
chip->quirk_flags |= QUIRK_FLAG_PLAYBACK_FIRST;
return add_implicit_fb_sync_ep(chip, fmt,
get_endpoint(alts, 1)->bEndpointAddress,
1, alts->desc.bInterfaceNumber,

4
sound/usb/usbaudio.h
View File

@ -36,7 +36,6 @@ struct snd_usb_audio {
wait_queue_head_t shutdown_wait;
unsigned int quirk_flags;
unsigned int need_delayed_register:1; /* warn for delayed registration */
unsigned int playback_first:1; /* for implicit fb: don't wait for the first capture URBs */
int num_interfaces;
int num_suspended_intf;
int sample_rate_read_error;
@ -139,11 +138,14 @@ extern bool snd_usb_skip_validation;
* slots (audio frames)
* QUIRK_TX_LENGTH:
* Add length specifier to transfers
* QUIRK_FLAG_PLAYBACK_FIRST:
* Start playback stream at first even in implement feedback mode
*/
#define QUIRK_FLAG_GET_SAMPLE_RATE (1U << 0)
#define QUIRK_FLAG_SHARE_MEDIA_DEVICE (1U << 1)
#define QUIRK_FLAG_ALIGN_TRANSFER (1U << 2)
#define QUIRK_FLAG_TX_LENGTH (1U << 3)
#define QUIRK_FLAG_PLAYBACK_FIRST (1U << 4)
#endif /* __USBAUDIO_H */