unsigned char reserved[64];
};
+#ifdef CONFIG_SND_SUPPORT_OLD_API
#define SNDRV_PCM_IOCTL_HW_REFINE_OLD _IOWR('A', 0x10, struct snd_pcm_hw_params_old)
#define SNDRV_PCM_IOCTL_HW_PARAMS_OLD _IOWR('A', 0x11, struct snd_pcm_hw_params_old)
struct snd_pcm_hw_params_old __user * _oparams);
static int snd_pcm_hw_params_old_user(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params_old __user * _oparams);
+#endif
+static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream);
/*
*
int err;
unsigned long flags;
+ if (! substream)
+ return 0;
+
snd_pcm_stream_lock_irqsave(substream, flags);
err = snd_pcm_action(&snd_pcm_action_suspend, substream, 0);
snd_pcm_stream_unlock_irqrestore(substream, flags);
struct snd_pcm_substream *substream;
int stream, err = 0;
+ if (! pcm)
+ return 0;
+
for (stream = 0; stream < 2; stream++) {
for (substream = pcm->streams[stream].substream;
substream; substream = substream->next) {
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;
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;
}
*
* 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;
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;
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;
}
{
struct file *file;
struct inode *inode;
- unsigned short minor;
+ unsigned int minor;
+
file = fget(fd);
if (!file)
return NULL;
return NULL;
}
minor = iminor(inode);
- if (minor >= 256 ||
- minor % SNDRV_MINOR_DEVICES < SNDRV_MINOR_PCM_PLAYBACK) {
+ if (!snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_PLAYBACK) &&
+ !snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_CAPTURE)) {
fput(file);
return NULL;
}
}
}
-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,
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;
}
-static int snd_pcm_open(struct inode *inode, struct file *file)
+static int snd_pcm_playback_open(struct inode *inode, struct file *file)
+{
+ struct snd_pcm *pcm;
+
+ pcm = snd_lookup_minor_data(iminor(inode),
+ SNDRV_DEVICE_TYPE_PCM_PLAYBACK);
+ return snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_PLAYBACK);
+}
+
+static int snd_pcm_capture_open(struct inode *inode, struct file *file)
{
- int cardnum = SNDRV_MINOR_CARD(iminor(inode));
- int device = SNDRV_MINOR_DEVICE(iminor(inode));
- int err;
struct snd_pcm *pcm;
+
+ pcm = snd_lookup_minor_data(iminor(inode),
+ SNDRV_DEVICE_TYPE_PCM_CAPTURE);
+ return snd_pcm_open(file, pcm, SNDRV_PCM_STREAM_CAPTURE);
+}
+
+static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream)
+{
+ int err;
struct snd_pcm_file *pcm_file;
wait_queue_t wait;
- if (device < SNDRV_MINOR_PCM_PLAYBACK || device >= SNDRV_MINOR_DEVICES)
- return -ENXIO;
- pcm = snd_pcm_devices[(cardnum * SNDRV_PCM_DEVICES) + (device % SNDRV_MINOR_PCMS)];
if (pcm == NULL) {
err = -ENODEV;
goto __error1;
}
init_waitqueue_entry(&wait, current);
add_wait_queue(&pcm->open_wait, &wait);
- down(&pcm->open_mutex);
+ mutex_lock(&pcm->open_mutex);
while (1) {
- err = snd_pcm_open_file(file, pcm, device >= SNDRV_MINOR_PCM_CAPTURE ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK, &pcm_file);
+ err = snd_pcm_open_file(file, pcm, stream, &pcm_file);
if (err >= 0)
break;
if (err == -EAGAIN) {
} else
break;
set_current_state(TASK_INTERRUPTIBLE);
- up(&pcm->open_mutex);
+ mutex_unlock(&pcm->open_mutex);
schedule();
- down(&pcm->open_mutex);
+ mutex_lock(&pcm->open_mutex);
if (signal_pending(current)) {
err = -ERESTARTSYS;
break;
}
}
remove_wait_queue(&pcm->open_wait, &wait);
- up(&pcm->open_mutex);
+ mutex_unlock(&pcm->open_mutex);
if (err < 0)
goto __error;
return err;
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);
- down(&pcm->open_mutex);
- snd_pcm_release_file(pcm_file);
- up(&pcm->open_mutex);
+ mutex_lock(&pcm->open_mutex);
+ snd_pcm_release_substream(substream);
+ mutex_unlock(&pcm->open_mutex);
wake_up(&pcm->open_wait);
module_put(pcm->card->module);
snd_card_file_remove(pcm->card, file);
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)
{
return snd_pcm_delay(substream, arg);
case SNDRV_PCM_IOCTL_SYNC_PTR:
return snd_pcm_sync_ptr(substream, arg);
+#ifdef CONFIG_SND_SUPPORT_OLD_API
case SNDRV_PCM_IOCTL_HW_REFINE_OLD:
return snd_pcm_hw_refine_old_user(substream, arg);
case SNDRV_PCM_IOCTL_HW_PARAMS_OLD:
return snd_pcm_hw_params_old_user(substream, arg);
+#endif
case SNDRV_PCM_IOCTL_DRAIN:
return snd_pcm_drain(substream);
case SNDRV_PCM_IOCTL_DROP:
return snd_pcm_drop(substream);
+ case SNDRV_PCM_IOCTL_PAUSE:
+ {
+ int res;
+ snd_pcm_stream_lock_irq(substream);
+ res = snd_pcm_pause(substream, (int)(unsigned long)arg);
+ snd_pcm_stream_unlock_irq(substream);
+ return res;
+ }
}
snd_printd("unknown ioctl = 0x%x\n", cmd);
return -ENOTTY;
__put_user(result, _frames);
return result < 0 ? result : 0;
}
- case SNDRV_PCM_IOCTL_PAUSE:
- {
- int res;
- snd_pcm_stream_lock_irq(substream);
- res = snd_pcm_pause(substream, (int)(unsigned long)arg);
- snd_pcm_stream_unlock_irq(substream);
- return res;
- }
}
return snd_pcm_common_ioctl1(substream, cmd, arg);
}
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,
* To be removed helpers to keep binary compatibility
*/
+#ifdef CONFIG_SND_SUPPORT_OLD_API
#define __OLD_TO_NEW_MASK(x) ((x&7)|((x&0x07fffff8)<<5))
#define __NEW_TO_OLD_MASK(x) ((x&7)|((x&0xffffff00)>>5))
kfree(oparams);
return err;
}
+#endif /* CONFIG_SND_SUPPORT_OLD_API */
/*
* Register section
*/
-static struct file_operations snd_pcm_f_ops_playback = {
- .owner = THIS_MODULE,
- .write = snd_pcm_write,
- .writev = snd_pcm_writev,
- .open = snd_pcm_open,
- .release = snd_pcm_release,
- .poll = snd_pcm_playback_poll,
- .unlocked_ioctl = snd_pcm_playback_ioctl,
- .compat_ioctl = snd_pcm_ioctl_compat,
- .mmap = snd_pcm_mmap,
- .fasync = snd_pcm_fasync,
-};
-
-static struct file_operations snd_pcm_f_ops_capture = {
- .owner = THIS_MODULE,
- .read = snd_pcm_read,
- .readv = snd_pcm_readv,
- .open = snd_pcm_open,
- .release = snd_pcm_release,
- .poll = snd_pcm_capture_poll,
- .unlocked_ioctl = snd_pcm_capture_ioctl,
- .compat_ioctl = snd_pcm_ioctl_compat,
- .mmap = snd_pcm_mmap,
- .fasync = snd_pcm_fasync,
-};
-
-struct snd_minor snd_pcm_reg[2] =
-{
+struct file_operations snd_pcm_f_ops[2] = {
{
- .comment = "digital audio playback",
- .f_ops = &snd_pcm_f_ops_playback,
+ .owner = THIS_MODULE,
+ .write = snd_pcm_write,
+ .writev = snd_pcm_writev,
+ .open = snd_pcm_playback_open,
+ .release = snd_pcm_release,
+ .poll = snd_pcm_playback_poll,
+ .unlocked_ioctl = snd_pcm_playback_ioctl,
+ .compat_ioctl = snd_pcm_ioctl_compat,
+ .mmap = snd_pcm_mmap,
+ .fasync = snd_pcm_fasync,
},
{
- .comment = "digital audio capture",
- .f_ops = &snd_pcm_f_ops_capture,
+ .owner = THIS_MODULE,
+ .read = snd_pcm_read,
+ .readv = snd_pcm_readv,
+ .open = snd_pcm_capture_open,
+ .release = snd_pcm_release,
+ .poll = snd_pcm_capture_poll,
+ .unlocked_ioctl = snd_pcm_capture_ioctl,
+ .compat_ioctl = snd_pcm_ioctl_compat,
+ .mmap = snd_pcm_mmap,
+ .fasync = snd_pcm_fasync,
}
};
projects / linux-2.6 / blobdiff