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usb: gadget: f_uac2: Fix pcm sample size selection

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The pcm playback and capture sample size format was fixed
SNDRV_PCM_FMTBIT_S16_LE.

This patch respects also 16, 24 and 32 bit p_ssize and c_ssize values.

Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sebastian Reimers <sebastian.reimers@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Sebastian Reimers 2014-07-03 20:15:28 +02:00 committed by Felipe Balbi
parent c9d8725926
commit 55f7840ac4
1 changed files with 22 additions and 2 deletions
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24
drivers/usb/gadget/function/f_uac2.c
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@ -348,14 +348,34 @@ static int uac2_pcm_open(struct snd_pcm_substream *substream)
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
spin_lock_init(&uac2->p_prm.lock);
runtime->hw.rate_min = p_srate;
runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE; /* ! p_ssize ! */
switch (p_ssize) {
case 3:
runtime->hw.formats = SNDRV_PCM_FMTBIT_S24_3LE;
break;
case 4:
runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
break;
default:
runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
break;
}
runtime->hw.channels_min = num_channels(p_chmask);
runtime->hw.period_bytes_min = 2 * uac2->p_prm.max_psize
/ runtime->hw.periods_min;
} else {
spin_lock_init(&uac2->c_prm.lock);
runtime->hw.rate_min = c_srate;
runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE; /* ! c_ssize ! */
switch (c_ssize) {
case 3:
runtime->hw.formats = SNDRV_PCM_FMTBIT_S24_3LE;
break;
case 4:
runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
break;
default:
runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
break;
}
runtime->hw.channels_min = num_channels(c_chmask);
runtime->hw.period_bytes_min = 2 * uac2->c_prm.max_psize
/ runtime->hw.periods_min;