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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2017-06-08 09:11:03 +0900
committerTakashi Iwai <tiwai@suse.de>2017-06-08 09:15:44 +0200
commit55799c5ab99e8762e58c387e39f9fa36e8f14158 (patch)
tree77cfa81930583eeeec15f0ef783b1d9be9475986 /sound/firewire/fireworks/fireworks_pcm.c
parentc6706de0ce8bc8cd1e336b8cf0acabf1adedba6c (diff)
ALSA: firewire: arrange common PCM info/constraints for AMDTP engine applications
In ALSA firewire stack, 8 drivers uses IEC 61883-1/6 engine for data transmission. They have common PCM info/constraints and duplicated codes. This commit unifies the codes into fireiwre-lib. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/fireworks/fireworks_pcm.c')
-rw-r--r--sound/firewire/fireworks/fireworks_pcm.c21
1 files changed, 0 insertions, 21 deletions
diff --git a/sound/firewire/fireworks/fireworks_pcm.c b/sound/firewire/fireworks/fireworks_pcm.c
index 346e2647ed1f..40faed5e6968 100644
--- a/sound/firewire/fireworks/fireworks_pcm.c
+++ b/sound/firewire/fireworks/fireworks_pcm.c
@@ -129,19 +129,6 @@ limit_channels(struct snd_pcm_hardware *hw, unsigned int *pcm_channels)
}
}
-static void
-limit_period_and_buffer(struct snd_pcm_hardware *hw)
-{
- hw->periods_min = 2; /* SNDRV_PCM_INFO_BATCH */
- hw->periods_max = UINT_MAX;
-
- hw->period_bytes_min = 4 * hw->channels_max; /* bytes for a frame */
-
- /* Just to prevent from allocating much pages. */
- hw->period_bytes_max = hw->period_bytes_min * 2048;
- hw->buffer_bytes_max = hw->period_bytes_max * hw->periods_min;
-}
-
static int
pcm_init_hw_params(struct snd_efw *efw,
struct snd_pcm_substream *substream)
@@ -151,13 +138,6 @@ pcm_init_hw_params(struct snd_efw *efw,
unsigned int *pcm_channels;
int err;
- runtime->hw.info = SNDRV_PCM_INFO_BATCH |
- SNDRV_PCM_INFO_BLOCK_TRANSFER |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_JOINT_DUPLEX |
- SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID;
-
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
runtime->hw.formats = AM824_IN_PCM_FORMAT_BITS;
s = &efw->tx_stream;
@@ -173,7 +153,6 @@ pcm_init_hw_params(struct snd_efw *efw,
snd_pcm_limit_hw_rates(runtime);
limit_channels(&runtime->hw, pcm_channels);
- limit_period_and_buffer(&runtime->hw);
err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
hw_rule_channels, pcm_channels,