diff options
Diffstat (limited to 'sound/firewire/tascam/tascam-pcm.c')
| -rw-r--r-- | sound/firewire/tascam/tascam-pcm.c | 61 |
1 files changed, 14 insertions, 47 deletions
diff --git a/sound/firewire/tascam/tascam-pcm.c b/sound/firewire/tascam/tascam-pcm.c index e4cc8990e195..b5ced5415e40 100644 --- a/sound/firewire/tascam/tascam-pcm.c +++ b/sound/firewire/tascam/tascam-pcm.c @@ -1,9 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * tascam-pcm.c - a part of driver for TASCAM FireWire series * * Copyright (c) 2015 Takashi Sakamoto - * - * Licensed under the terms of the GNU General Public License, version 2. */ #include "tascam.h" @@ -84,8 +83,8 @@ static int pcm_close(struct snd_pcm_substream *substream) return 0; } -static int pcm_capture_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) +static int pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) { struct snd_tscm *tscm = substream->private_data; int err; @@ -96,58 +95,26 @@ static int pcm_capture_hw_params(struct snd_pcm_substream *substream, return err; if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) { - mutex_lock(&tscm->mutex); - tscm->substreams_counter++; - mutex_unlock(&tscm->mutex); - } + unsigned int rate = params_rate(hw_params); - return 0; -} - -static int pcm_playback_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - struct snd_tscm *tscm = substream->private_data; - int err; - - err = snd_pcm_lib_alloc_vmalloc_buffer(substream, - params_buffer_bytes(hw_params)); - if (err < 0) - return err; - - if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) { mutex_lock(&tscm->mutex); - tscm->substreams_counter++; + err = snd_tscm_stream_reserve_duplex(tscm, rate); + if (err >= 0) + ++tscm->substreams_counter; mutex_unlock(&tscm->mutex); } - return 0; -} - -static int pcm_capture_hw_free(struct snd_pcm_substream *substream) -{ - struct snd_tscm *tscm = substream->private_data; - - mutex_lock(&tscm->mutex); - - if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) - tscm->substreams_counter--; - - snd_tscm_stream_stop_duplex(tscm); - - mutex_unlock(&tscm->mutex); - - return snd_pcm_lib_free_vmalloc_buffer(substream); + return err; } -static int pcm_playback_hw_free(struct snd_pcm_substream *substream) +static int pcm_hw_free(struct snd_pcm_substream *substream) { struct snd_tscm *tscm = substream->private_data; mutex_lock(&tscm->mutex); if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) - tscm->substreams_counter--; + --tscm->substreams_counter; snd_tscm_stream_stop_duplex(tscm); @@ -260,8 +227,8 @@ int snd_tscm_create_pcm_devices(struct snd_tscm *tscm) .open = pcm_open, .close = pcm_close, .ioctl = snd_pcm_lib_ioctl, - .hw_params = pcm_capture_hw_params, - .hw_free = pcm_capture_hw_free, + .hw_params = pcm_hw_params, + .hw_free = pcm_hw_free, .prepare = pcm_capture_prepare, .trigger = pcm_capture_trigger, .pointer = pcm_capture_pointer, @@ -272,8 +239,8 @@ int snd_tscm_create_pcm_devices(struct snd_tscm *tscm) .open = pcm_open, .close = pcm_close, .ioctl = snd_pcm_lib_ioctl, - .hw_params = pcm_playback_hw_params, - .hw_free = pcm_playback_hw_free, + .hw_params = pcm_hw_params, + .hw_free = pcm_hw_free, .prepare = pcm_playback_prepare, .trigger = pcm_playback_trigger, .pointer = pcm_playback_pointer, |