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Diffstat (limited to 'sound/core/oss/pcm_oss.c')
-rw-r--r--sound/core/oss/pcm_oss.c50
1 files changed, 33 insertions, 17 deletions
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
index 7fd072392c7e..f8302b703a30 100644
--- a/sound/core/oss/pcm_oss.c
+++ b/sound/core/oss/pcm_oss.c
@@ -78,6 +78,7 @@ static inline void snd_leave_user(mm_segment_t fs)
set_fs(fs);
}
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
static int snd_pcm_oss_plugin_clear(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
@@ -122,6 +123,7 @@ int snd_pcm_plugin_append(struct snd_pcm_plugin *plugin)
}
return 0;
}
+#endif /* CONFIG_SND_PCM_OSS_PLUGINS */
static long snd_pcm_oss_bytes(struct snd_pcm_substream *substream, long frames)
{
@@ -412,6 +414,7 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
oss_frame_size = snd_pcm_format_physical_width(params_format(params)) *
params_channels(params) / 8;
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
snd_pcm_oss_plugin_clear(substream);
if (!direct) {
/* add necessary plugins */
@@ -441,6 +444,7 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
}
}
}
+#endif
err = snd_pcm_oss_period_size(substream, params, sparams);
if (err < 0)
@@ -498,11 +502,13 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream)
runtime->oss.periods = params_periods(sparams);
oss_period_size = snd_pcm_plug_client_size(substream, params_period_size(sparams));
snd_assert(oss_period_size >= 0, err = -EINVAL; goto failure);
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
if (runtime->oss.plugin_first) {
err = snd_pcm_plug_alloc(substream, oss_period_size);
if (err < 0)
goto failure;
}
+#endif
oss_period_size *= oss_frame_size;
oss_buffer_size = oss_period_size * runtime->oss.periods;
@@ -784,6 +790,7 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_sframes_t frames, frames1;
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
if (runtime->oss.plugin_first) {
struct snd_pcm_plugin_channel *channels;
size_t oss_frame_bytes = (runtime->oss.plugin_first->src_width * runtime->oss.plugin_first->src_format.channels) / 8;
@@ -800,7 +807,9 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha
if (frames1 <= 0)
return frames1;
bytes = frames1 * oss_frame_bytes;
- } else {
+ } else
+#endif
+ {
frames = bytes_to_frames(runtime, bytes);
frames1 = snd_pcm_oss_write3(substream, buf, frames, in_kernel);
if (frames1 <= 0)
@@ -871,6 +880,7 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf,
{
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_sframes_t frames, frames1;
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
char __user *final_dst = (char __user *)buf;
if (runtime->oss.plugin_first) {
struct snd_pcm_plugin_channel *channels;
@@ -887,7 +897,9 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf,
bytes = frames1 * oss_frame_bytes;
if (!in_kernel && copy_to_user(final_dst, buf, bytes))
return -EFAULT;
- } else {
+ } else
+#endif
+ {
frames = bytes_to_frames(runtime, bytes);
frames1 = snd_pcm_oss_read3(substream, buf, frames, in_kernel);
if (frames1 <= 0)
@@ -1631,10 +1643,10 @@ static struct snd_pcm_oss_setup *snd_pcm_oss_look_for_setup(struct snd_pcm *pcm,
const char *ptr, *ptrl;
struct snd_pcm_oss_setup *setup;
- down(&pcm->streams[stream].oss.setup_mutex);
+ mutex_lock(&pcm->streams[stream].oss.setup_mutex);
for (setup = pcm->streams[stream].oss.setup_list; setup; setup = setup->next) {
if (!strcmp(setup->task_name, task_name)) {
- up(&pcm->streams[stream].oss.setup_mutex);
+ mutex_unlock(&pcm->streams[stream].oss.setup_mutex);
return setup;
}
}
@@ -1650,12 +1662,12 @@ static struct snd_pcm_oss_setup *snd_pcm_oss_look_for_setup(struct snd_pcm *pcm,
}
for (setup = pcm->streams[stream].oss.setup_list; setup; setup = setup->next) {
if (!strcmp(setup->task_name, ptrl)) {
- up(&pcm->streams[stream].oss.setup_mutex);
+ mutex_unlock(&pcm->streams[stream].oss.setup_mutex);
return setup;
}
}
__not_found:
- up(&pcm->streams[stream].oss.setup_mutex);
+ mutex_unlock(&pcm->streams[stream].oss.setup_mutex);
return NULL;
}
@@ -1692,7 +1704,9 @@ static void snd_pcm_oss_release_substream(struct snd_pcm_substream *substream)
struct snd_pcm_runtime *runtime;
runtime = substream->runtime;
vfree(runtime->oss.buffer);
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
snd_pcm_oss_plugin_clear(substream);
+#endif
substream->oss.file = NULL;
substream->oss.oss = 0;
}
@@ -1881,7 +1895,7 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file)
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_oss_open_file(file, pcm, &pcm_oss_file,
iminor(inode), psetup, csetup);
@@ -1895,16 +1909,16 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file)
} 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;
@@ -1930,9 +1944,9 @@ static int snd_pcm_oss_release(struct inode *inode, struct file *file)
snd_assert(substream != NULL, return -ENXIO);
pcm = substream->pcm;
snd_pcm_oss_sync(pcm_oss_file);
- down(&pcm->open_mutex);
+ mutex_lock(&pcm->open_mutex);
snd_pcm_oss_release_file(pcm_oss_file);
- up(&pcm->open_mutex);
+ mutex_unlock(&pcm->open_mutex);
wake_up(&pcm->open_wait);
module_put(pcm->card->module);
snd_card_file_remove(pcm->card, file);
@@ -2246,8 +2260,10 @@ static int snd_pcm_oss_mmap(struct file *file, struct vm_area_struct *area)
if ((err = snd_pcm_oss_change_params(substream)) < 0)
return err;
}
+#ifdef CONFIG_SND_PCM_OSS_PLUGINS
if (runtime->oss.plugin_first != NULL)
return -EIO;
+#endif
if (area->vm_pgoff != 0)
return -EINVAL;
@@ -2277,7 +2293,7 @@ static void snd_pcm_oss_proc_read(struct snd_info_entry *entry,
{
struct snd_pcm_str *pstr = entry->private_data;
struct snd_pcm_oss_setup *setup = pstr->oss.setup_list;
- down(&pstr->oss.setup_mutex);
+ mutex_lock(&pstr->oss.setup_mutex);
while (setup) {
snd_iprintf(buffer, "%s %u %u%s%s%s%s%s%s\n",
setup->task_name,
@@ -2291,7 +2307,7 @@ static void snd_pcm_oss_proc_read(struct snd_info_entry *entry,
setup->nosilence ? " no-silence" : "");
setup = setup->next;
}
- up(&pstr->oss.setup_mutex);
+ mutex_unlock(&pstr->oss.setup_mutex);
}
static void snd_pcm_oss_proc_free_setup_list(struct snd_pcm_str * pstr)
@@ -2321,12 +2337,12 @@ static void snd_pcm_oss_proc_write(struct snd_info_entry *entry,
struct snd_pcm_oss_setup *setup, *setup1, template;
while (!snd_info_get_line(buffer, line, sizeof(line))) {
- down(&pstr->oss.setup_mutex);
+ mutex_lock(&pstr->oss.setup_mutex);
memset(&template, 0, sizeof(template));
ptr = snd_info_get_str(task_name, line, sizeof(task_name));
if (!strcmp(task_name, "clear") || !strcmp(task_name, "erase")) {
snd_pcm_oss_proc_free_setup_list(pstr);
- up(&pstr->oss.setup_mutex);
+ mutex_unlock(&pstr->oss.setup_mutex);
continue;
}
for (setup = pstr->oss.setup_list; setup; setup = setup->next) {
@@ -2378,7 +2394,7 @@ static void snd_pcm_oss_proc_write(struct snd_info_entry *entry,
}
if (setup)
*setup = template;
- up(&pstr->oss.setup_mutex);
+ mutex_unlock(&pstr->oss.setup_mutex);
}
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.