diff options
| author | Oswald Buddenhagen | 2023-05-23 22:07:09 +0200 |
|---|---|---|
| committer | Takashi Iwai | 2023-05-24 12:10:30 +0200 |
| commit | f4ab59503989cce2c12a3c6337779218a5538ddd (patch) | |
| tree | 06e14c8c508909f3ff0f785ca0cccacdc0408b15 /sound/pci | |
| parent | 11ee59bdac36ae4b500301a6a3ccf586d3968d92 (diff) | |
ALSA: emu10k1: make channel count of multi-channel playback flexible
There is no reason to nail it to 16 channels.
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230523200709.236023-4-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/emu10k1/emupcm.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c index 4df6f5285993..e34b02e9f890 100644 --- a/sound/pci/emu10k1/emupcm.c +++ b/sound/pci/emu10k1/emupcm.c @@ -430,7 +430,7 @@ static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream) struct snd_emu10k1_pcm *epcm = runtime->private_data; unsigned int start_addr; unsigned int extra_size, channel_size; - int i; + unsigned int i; start_addr = epcm->start_addr >> 1; // 16-bit voices @@ -441,7 +441,7 @@ static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream) start_addr, start_addr + extra_size); epcm->ccca_start_addr = start_addr; - for (i = 0; i < NUM_EFX_PLAYBACK; i++) { + for (i = 0; i < runtime->channels; i++) { snd_emu10k1_pcm_init_voices(emu, epcm->voices[i], true, false, start_addr, start_addr + channel_size, &emu->efx_pcm_mixer[i]); @@ -461,7 +461,7 @@ static const struct snd_pcm_hardware snd_emu10k1_efx_playback = .rates = SNDRV_PCM_RATE_48000, .rate_min = 48000, .rate_max = 48000, - .channels_min = NUM_EFX_PLAYBACK, + .channels_min = 1, .channels_max = NUM_EFX_PLAYBACK, .buffer_bytes_max = (128*1024), .period_bytes_max = (128*1024), @@ -903,21 +903,21 @@ static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream, case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: case SNDRV_PCM_TRIGGER_RESUME: mask = snd_emu10k1_efx_playback_voice_mask( - epcm, NUM_EFX_PLAYBACK); + epcm, runtime->channels); for (int i = 0; i < 10; i++) { // Note that the freeze is not interruptible, so we make no // effort to reset the bits outside the error handling here. snd_emu10k1_voice_set_loop_stop_multiple(emu, mask); snd_emu10k1_efx_playback_freeze_voices( - emu, epcm, NUM_EFX_PLAYBACK); + emu, epcm, runtime->channels); snd_emu10k1_playback_prepare_voices( - emu, epcm, true, false, NUM_EFX_PLAYBACK); + emu, epcm, true, false, runtime->channels); // It might seem to make more sense to unmute the voices only after // they have been started, to potentially avoid torturing the speakers // if something goes wrong. However, we cannot unmute atomically, // which means that we'd get some mild artifacts in the regular case. - snd_emu10k1_efx_playback_unmute_voices(emu, epcm, NUM_EFX_PLAYBACK); + snd_emu10k1_efx_playback_unmute_voices(emu, epcm, runtime->channels); snd_emu10k1_playback_set_running(emu, epcm); result = snd_emu10k1_voice_clear_loop_stop_multiple_atomic(emu, mask); @@ -928,7 +928,7 @@ static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream, } snd_emu10k1_efx_playback_stop_voices( - emu, epcm, NUM_EFX_PLAYBACK); + emu, epcm, runtime->channels); if (result != -EAGAIN) break; @@ -941,7 +941,7 @@ static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream, case SNDRV_PCM_TRIGGER_PAUSE_PUSH: snd_emu10k1_playback_stop_voice(emu, epcm->extra); snd_emu10k1_efx_playback_stop_voices( - emu, epcm, NUM_EFX_PLAYBACK); + emu, epcm, runtime->channels); epcm->resume_pos = snd_emu10k1_playback_pointer(substream); break; |