diff options
author | Dmitry Torokhov <dtor_core@ameritech.net> | 2006-04-29 01:11:23 -0400 |
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committer | Dmitry Torokhov <dtor_core@ameritech.net> | 2006-04-29 01:11:23 -0400 |
commit | 7b7e394185014e0f3bd8989cac937003f20ef9ce (patch) | |
tree | 3beda5f979bba0aa9822534e239cf1b45f3be69c /sound/core/pcm_native.c | |
parent | ddc5d3414593e4d7ad7fbd33e7f7517fcc234544 (diff) | |
parent | 693f7d362055261882659475d2ef022e32edbff1 (diff) |
Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'sound/core/pcm_native.c')
-rw-r--r-- | sound/core/pcm_native.c | 159 |
1 files changed, 77 insertions, 82 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 01f150f0990..0860c5a8450 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1170,7 +1170,7 @@ static int snd_pcm_resume(struct snd_pcm_substream *substream) int res; snd_power_lock(card); - if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile)) >= 0) + if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0)) >= 0) res = snd_pcm_action_lock_irq(&snd_pcm_action_resume, substream, 0); snd_power_unlock(card); return res; @@ -1198,7 +1198,7 @@ static int snd_pcm_xrun(struct snd_pcm_substream *substream) snd_power_lock(card); if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) { - result = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile); + result = snd_power_wait(card, SNDRV_CTL_POWER_D0); if (result < 0) goto _unlock; } @@ -1313,13 +1313,13 @@ static struct action_ops snd_pcm_action_prepare = { * * Prepare the PCM substream to be triggerable. */ -int snd_pcm_prepare(struct snd_pcm_substream *substream) +static int snd_pcm_prepare(struct snd_pcm_substream *substream) { int res; struct snd_card *card = substream->pcm->card; snd_power_lock(card); - if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile)) >= 0) + if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0)) >= 0) res = snd_pcm_action_nonatomic(&snd_pcm_action_prepare, substream, 0); snd_power_unlock(card); return res; @@ -1410,7 +1410,7 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream) snd_power_lock(card); if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) { - result = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile); + result = snd_power_wait(card, SNDRV_CTL_POWER_D0); if (result < 0) { snd_power_unlock(card); return result; @@ -1533,7 +1533,7 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream) snd_power_lock(card); if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) { - result = snd_power_wait(card, SNDRV_CTL_POWER_D0, substream->ffile); + result = snd_power_wait(card, SNDRV_CTL_POWER_D0); if (result < 0) goto _unlock; } @@ -1995,28 +1995,65 @@ static void snd_pcm_remove_file(struct snd_pcm_str *str, } } -static int snd_pcm_release_file(struct snd_pcm_file * pcm_file) +static void pcm_release_private(struct snd_pcm_substream *substream) { - struct snd_pcm_substream *substream; - struct snd_pcm_runtime *runtime; - struct snd_pcm_str * str; + struct snd_pcm_file *pcm_file = substream->file; - snd_assert(pcm_file != NULL, return -ENXIO); - substream = pcm_file->substream; - snd_assert(substream != NULL, return -ENXIO); - runtime = substream->runtime; - str = substream->pstr; snd_pcm_unlink(substream); - if (substream->ffile != NULL) { + snd_pcm_remove_file(substream->pstr, pcm_file); + kfree(pcm_file); +} + +void snd_pcm_release_substream(struct snd_pcm_substream *substream) +{ + snd_pcm_drop(substream); + if (substream->hw_opened) { if (substream->ops->hw_free != NULL) substream->ops->hw_free(substream); substream->ops->close(substream); - substream->ffile = NULL; + substream->hw_opened = 0; } - snd_pcm_remove_file(str, pcm_file); - snd_pcm_release_substream(substream); - kfree(pcm_file); + if (substream->pcm_release) { + substream->pcm_release(substream); + substream->pcm_release = NULL; + } + snd_pcm_detach_substream(substream); +} + +int snd_pcm_open_substream(struct snd_pcm *pcm, int stream, + struct file *file, + struct snd_pcm_substream **rsubstream) +{ + struct snd_pcm_substream *substream; + int err; + + err = snd_pcm_attach_substream(pcm, stream, file, &substream); + if (err < 0) + return err; + substream->no_mmap_ctrl = 0; + err = snd_pcm_hw_constraints_init(substream); + if (err < 0) { + snd_printd("snd_pcm_hw_constraints_init failed\n"); + goto error; + } + + if ((err = substream->ops->open(substream)) < 0) + goto error; + + substream->hw_opened = 1; + + err = snd_pcm_hw_constraints_complete(substream); + if (err < 0) { + snd_printd("snd_pcm_hw_constraints_complete failed\n"); + goto error; + } + + *rsubstream = substream; return 0; + + error: + snd_pcm_release_substream(substream); + return err; } static int snd_pcm_open_file(struct file *file, @@ -2024,52 +2061,29 @@ static int snd_pcm_open_file(struct file *file, int stream, struct snd_pcm_file **rpcm_file) { - int err = 0; struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_str *str; + int err; snd_assert(rpcm_file != NULL, return -EINVAL); *rpcm_file = NULL; + err = snd_pcm_open_substream(pcm, stream, file, &substream); + if (err < 0) + return err; + pcm_file = kzalloc(sizeof(*pcm_file), GFP_KERNEL); if (pcm_file == NULL) { + snd_pcm_release_substream(substream); return -ENOMEM; } - - if ((err = snd_pcm_open_substream(pcm, stream, &substream)) < 0) { - kfree(pcm_file); - return err; - } - str = substream->pstr; substream->file = pcm_file; - substream->no_mmap_ctrl = 0; - + substream->pcm_release = pcm_release_private; pcm_file->substream = substream; - snd_pcm_add_file(str, pcm_file); - err = snd_pcm_hw_constraints_init(substream); - if (err < 0) { - snd_printd("snd_pcm_hw_constraints_init failed\n"); - snd_pcm_release_file(pcm_file); - return err; - } - - if ((err = substream->ops->open(substream)) < 0) { - snd_pcm_release_file(pcm_file); - return err; - } - substream->ffile = file; - - err = snd_pcm_hw_constraints_complete(substream); - if (err < 0) { - snd_printd("snd_pcm_hw_constraints_complete failed\n"); - snd_pcm_release_file(pcm_file); - return err; - } - file->private_data = pcm_file; *rpcm_file = pcm_file; return 0; @@ -2158,10 +2172,9 @@ static int snd_pcm_release(struct inode *inode, struct file *file) snd_assert(substream != NULL, return -ENXIO); snd_assert(!atomic_read(&substream->runtime->mmap_count), ); pcm = substream->pcm; - snd_pcm_drop(substream); fasync_helper(-1, file, 0, &substream->runtime->fasync); mutex_lock(&pcm->open_mutex); - snd_pcm_release_file(pcm_file); + snd_pcm_release_substream(substream); mutex_unlock(&pcm->open_mutex); wake_up(&pcm->open_wait); module_put(pcm->card->module); @@ -2480,11 +2493,6 @@ static int snd_pcm_sync_ptr(struct snd_pcm_substream *substream, return 0; } -static int snd_pcm_playback_ioctl1(struct snd_pcm_substream *substream, - unsigned int cmd, void __user *arg); -static int snd_pcm_capture_ioctl1(struct snd_pcm_substream *substream, - unsigned int cmd, void __user *arg); - static int snd_pcm_common_ioctl1(struct snd_pcm_substream *substream, unsigned int cmd, void __user *arg) { @@ -2736,41 +2744,28 @@ static long snd_pcm_capture_ioctl(struct file *file, unsigned int cmd, return snd_pcm_capture_ioctl1(pcm_file->substream, cmd, (void __user *)arg); } -int snd_pcm_kernel_playback_ioctl(struct snd_pcm_substream *substream, - unsigned int cmd, void *arg) -{ - mm_segment_t fs; - int result; - - fs = snd_enter_user(); - result = snd_pcm_playback_ioctl1(substream, cmd, (void __user *)arg); - snd_leave_user(fs); - return result; -} - -int snd_pcm_kernel_capture_ioctl(struct snd_pcm_substream *substream, - unsigned int cmd, void *arg) +int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream, + unsigned int cmd, void *arg) { mm_segment_t fs; int result; fs = snd_enter_user(); - result = snd_pcm_capture_ioctl1(substream, cmd, (void __user *)arg); - snd_leave_user(fs); - return result; -} - -int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream, - unsigned int cmd, void *arg) -{ switch (substream->stream) { case SNDRV_PCM_STREAM_PLAYBACK: - return snd_pcm_kernel_playback_ioctl(substream, cmd, arg); + result = snd_pcm_playback_ioctl1(substream, + cmd, (void __user *)arg); + break; case SNDRV_PCM_STREAM_CAPTURE: - return snd_pcm_kernel_capture_ioctl(substream, cmd, arg); + result = snd_pcm_capture_ioctl1(substream, + cmd, (void __user *)arg); + break; default: - return -EINVAL; + result = -EINVAL; + break; } + snd_leave_user(fs); + return result; } static ssize_t snd_pcm_read(struct file *file, char __user *buf, size_t count, |