diff options
Diffstat (limited to 'sound/core/pcm.c')
| -rw-r--r-- | sound/core/pcm.c | 214 |
1 files changed, 114 insertions, 100 deletions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c index 184e74b75ba9..59c995bbf15b 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -33,18 +33,18 @@ MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Abramo Bagnara <abramo@alsa-proj MODULE_DESCRIPTION("Midlevel PCM code for ALSA."); MODULE_LICENSE("GPL"); -snd_pcm_t *snd_pcm_devices[SNDRV_CARDS * SNDRV_PCM_DEVICES]; +struct snd_pcm *snd_pcm_devices[SNDRV_CARDS * SNDRV_PCM_DEVICES]; static LIST_HEAD(snd_pcm_notify_list); static DECLARE_MUTEX(register_mutex); -static int snd_pcm_free(snd_pcm_t *pcm); -static int snd_pcm_dev_free(snd_device_t *device); -static int snd_pcm_dev_register(snd_device_t *device); -static int snd_pcm_dev_disconnect(snd_device_t *device); -static int snd_pcm_dev_unregister(snd_device_t *device); +static int snd_pcm_free(struct snd_pcm *pcm); +static int snd_pcm_dev_free(struct snd_device *device); +static int snd_pcm_dev_register(struct snd_device *device); +static int snd_pcm_dev_disconnect(struct snd_device *device); +static int snd_pcm_dev_unregister(struct snd_device *device); -static int snd_pcm_control_ioctl(snd_card_t * card, - snd_ctl_file_t * control, +static int snd_pcm_control_ioctl(struct snd_card *card, + struct snd_ctl_file *control, unsigned int cmd, unsigned long arg) { unsigned int tmp; @@ -71,13 +71,13 @@ static int snd_pcm_control_ioctl(snd_card_t * card, } case SNDRV_CTL_IOCTL_PCM_INFO: { - snd_pcm_info_t __user *info; + struct snd_pcm_info __user *info; unsigned int device, subdevice; - snd_pcm_stream_t stream; - snd_pcm_t *pcm; - snd_pcm_str_t *pstr; - snd_pcm_substream_t *substream; - info = (snd_pcm_info_t __user *)arg; + int stream; + struct snd_pcm *pcm; + struct snd_pcm_str *pstr; + struct snd_pcm_substream *substream; + info = (struct snd_pcm_info __user *)arg; if (get_user(device, &info->device)) return -EFAULT; if (device >= SNDRV_PCM_DEVICES) @@ -200,7 +200,7 @@ static char *snd_pcm_tstamp_mode_names[] = { TSTAMP(MMAP), }; -static const char *snd_pcm_stream_name(snd_pcm_stream_t stream) +static const char *snd_pcm_stream_name(int stream) { snd_assert(stream <= SNDRV_PCM_STREAM_LAST, return NULL); return snd_pcm_stream_names[stream]; @@ -208,23 +208,20 @@ static const char *snd_pcm_stream_name(snd_pcm_stream_t stream) static const char *snd_pcm_access_name(snd_pcm_access_t access) { - snd_assert(access <= SNDRV_PCM_ACCESS_LAST, return NULL); return snd_pcm_access_names[access]; } const char *snd_pcm_format_name(snd_pcm_format_t format) { - snd_assert(format <= SNDRV_PCM_FORMAT_LAST, return NULL); return snd_pcm_format_names[format]; } static const char *snd_pcm_subformat_name(snd_pcm_subformat_t subformat) { - snd_assert(subformat <= SNDRV_PCM_SUBFORMAT_LAST, return NULL); return snd_pcm_subformat_names[subformat]; } -static const char *snd_pcm_tstamp_mode_name(snd_pcm_tstamp_t mode) +static const char *snd_pcm_tstamp_mode_name(int mode) { snd_assert(mode <= SNDRV_PCM_TSTAMP_LAST, return NULL); return snd_pcm_tstamp_mode_names[mode]; @@ -232,7 +229,6 @@ static const char *snd_pcm_tstamp_mode_name(snd_pcm_tstamp_t mode) static const char *snd_pcm_state_name(snd_pcm_state_t state) { - snd_assert(state <= SNDRV_PCM_STATE_LAST, return NULL); return snd_pcm_state_names[state]; } @@ -268,9 +264,10 @@ static const char *snd_pcm_oss_format_name(int format) #endif #ifdef CONFIG_PROC_FS -static void snd_pcm_proc_info_read(snd_pcm_substream_t *substream, snd_info_buffer_t *buffer) +static void snd_pcm_proc_info_read(struct snd_pcm_substream *substream, + struct snd_info_buffer *buffer) { - snd_pcm_info_t *info; + struct snd_pcm_info *info; int err; if (! substream) @@ -302,20 +299,25 @@ static void snd_pcm_proc_info_read(snd_pcm_substream_t *substream, snd_info_buff kfree(info); } -static void snd_pcm_stream_proc_info_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer) +static void snd_pcm_stream_proc_info_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) { - snd_pcm_proc_info_read(((snd_pcm_str_t *)entry->private_data)->substream, buffer); + snd_pcm_proc_info_read(((struct snd_pcm_str *)entry->private_data)->substream, + buffer); } -static void snd_pcm_substream_proc_info_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer) +static void snd_pcm_substream_proc_info_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) { - snd_pcm_proc_info_read((snd_pcm_substream_t *)entry->private_data, buffer); + snd_pcm_proc_info_read((struct snd_pcm_substream *)entry->private_data, + buffer); } -static void snd_pcm_substream_proc_hw_params_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer) +static void snd_pcm_substream_proc_hw_params_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) { - snd_pcm_substream_t *substream = (snd_pcm_substream_t *)entry->private_data; - snd_pcm_runtime_t *runtime = substream->runtime; + struct snd_pcm_substream *substream = entry->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; if (!runtime) { snd_iprintf(buffer, "closed\n"); return; @@ -347,10 +349,11 @@ static void snd_pcm_substream_proc_hw_params_read(snd_info_entry_t *entry, snd_i snd_pcm_stream_unlock_irq(substream); } -static void snd_pcm_substream_proc_sw_params_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer) +static void snd_pcm_substream_proc_sw_params_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) { - snd_pcm_substream_t *substream = (snd_pcm_substream_t *)entry->private_data; - snd_pcm_runtime_t *runtime = substream->runtime; + struct snd_pcm_substream *substream = entry->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; if (!runtime) { snd_iprintf(buffer, "closed\n"); return; @@ -374,11 +377,12 @@ static void snd_pcm_substream_proc_sw_params_read(snd_info_entry_t *entry, snd_i snd_pcm_stream_unlock_irq(substream); } -static void snd_pcm_substream_proc_status_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer) +static void snd_pcm_substream_proc_status_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) { - snd_pcm_substream_t *substream = (snd_pcm_substream_t *)entry->private_data; - snd_pcm_runtime_t *runtime = substream->runtime; - snd_pcm_status_t status; + struct snd_pcm_substream *substream = entry->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_pcm_status status; int err; if (!runtime) { snd_iprintf(buffer, "closed\n"); @@ -405,25 +409,27 @@ static void snd_pcm_substream_proc_status_read(snd_info_entry_t *entry, snd_info #endif #ifdef CONFIG_SND_DEBUG -static void snd_pcm_xrun_debug_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer) +static void snd_pcm_xrun_debug_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) { - snd_pcm_str_t *pstr = (snd_pcm_str_t *)entry->private_data; + struct snd_pcm_str *pstr = entry->private_data; snd_iprintf(buffer, "%d\n", pstr->xrun_debug); } -static void snd_pcm_xrun_debug_write(snd_info_entry_t *entry, snd_info_buffer_t *buffer) +static void snd_pcm_xrun_debug_write(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) { - snd_pcm_str_t *pstr = (snd_pcm_str_t *)entry->private_data; + struct snd_pcm_str *pstr = entry->private_data; char line[64]; if (!snd_info_get_line(buffer, line, sizeof(line))) pstr->xrun_debug = simple_strtoul(line, NULL, 10); } #endif -static int snd_pcm_stream_proc_init(snd_pcm_str_t *pstr) +static int snd_pcm_stream_proc_init(struct snd_pcm_str *pstr) { - snd_pcm_t *pcm = pstr->pcm; - snd_info_entry_t *entry; + struct snd_pcm *pcm = pstr->pcm; + struct snd_info_entry *entry; char name[16]; sprintf(name, "pcm%i%c", pcm->device, @@ -447,7 +453,8 @@ static int snd_pcm_stream_proc_init(snd_pcm_str_t *pstr) pstr->proc_info_entry = entry; #ifdef CONFIG_SND_DEBUG - if ((entry = snd_info_create_card_entry(pcm->card, "xrun_debug", pstr->proc_root)) != NULL) { + if ((entry = snd_info_create_card_entry(pcm->card, "xrun_debug", + pstr->proc_root)) != NULL) { entry->c.text.read_size = 64; entry->c.text.read = snd_pcm_xrun_debug_read; entry->c.text.write_size = 64; @@ -464,7 +471,7 @@ static int snd_pcm_stream_proc_init(snd_pcm_str_t *pstr) return 0; } -static int snd_pcm_stream_proc_done(snd_pcm_str_t *pstr) +static int snd_pcm_stream_proc_done(struct snd_pcm_str *pstr) { #ifdef CONFIG_SND_DEBUG if (pstr->proc_xrun_debug_entry) { @@ -483,10 +490,10 @@ static int snd_pcm_stream_proc_done(snd_pcm_str_t *pstr) return 0; } -static int snd_pcm_substream_proc_init(snd_pcm_substream_t *substream) +static int snd_pcm_substream_proc_init(struct snd_pcm_substream *substream) { - snd_info_entry_t *entry; - snd_card_t *card; + struct snd_info_entry *entry; + struct snd_card *card; char name[16]; card = substream->pcm->card; @@ -540,7 +547,7 @@ static int snd_pcm_substream_proc_init(snd_pcm_substream_t *substream) return 0; } -static int snd_pcm_substream_proc_done(snd_pcm_substream_t *substream) +static int snd_pcm_substream_proc_done(struct snd_pcm_substream *substream) { if (substream->proc_info_entry) { snd_info_unregister(substream->proc_info_entry); @@ -578,11 +585,11 @@ static int snd_pcm_substream_proc_done(snd_pcm_substream_t *substream) * * Returns zero if successful, or a negative error code on failure. */ -int snd_pcm_new_stream(snd_pcm_t *pcm, int stream, int substream_count) +int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count) { int idx, err; - snd_pcm_str_t *pstr = &pcm->streams[stream]; - snd_pcm_substream_t *substream, *prev; + struct snd_pcm_str *pstr = &pcm->streams[stream]; + struct snd_pcm_substream *substream, *prev; #if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) init_MUTEX(&pstr->oss.setup_mutex); @@ -642,13 +649,13 @@ int snd_pcm_new_stream(snd_pcm_t *pcm, int stream, int substream_count) * * Returns zero if successful, or a negative error code on failure. */ -int snd_pcm_new(snd_card_t * card, char *id, int device, +int snd_pcm_new(struct snd_card *card, char *id, int device, int playback_count, int capture_count, - snd_pcm_t ** rpcm) + struct snd_pcm ** rpcm) { - snd_pcm_t *pcm; + struct snd_pcm *pcm; int err; - static snd_device_ops_t ops = { + static struct snd_device_ops ops = { .dev_free = snd_pcm_dev_free, .dev_register = snd_pcm_dev_register, .dev_disconnect = snd_pcm_dev_disconnect, @@ -684,11 +691,11 @@ int snd_pcm_new(snd_card_t * card, char *id, int device, return 0; } -static void snd_pcm_free_stream(snd_pcm_str_t * pstr) +static void snd_pcm_free_stream(struct snd_pcm_str * pstr) { - snd_pcm_substream_t *substream, *substream_next; + struct snd_pcm_substream *substream, *substream_next; #if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) - snd_pcm_oss_setup_t *setup, *setupn; + struct snd_pcm_oss_setup *setup, *setupn; #endif substream = pstr->substream; while (substream) { @@ -707,7 +714,7 @@ static void snd_pcm_free_stream(snd_pcm_str_t * pstr) #endif } -static int snd_pcm_free(snd_pcm_t *pcm) +static int snd_pcm_free(struct snd_pcm *pcm) { snd_assert(pcm != NULL, return -ENXIO); if (pcm->private_free) @@ -719,26 +726,26 @@ static int snd_pcm_free(snd_pcm_t *pcm) return 0; } -static int snd_pcm_dev_free(snd_device_t *device) +static int snd_pcm_dev_free(struct snd_device *device) { - snd_pcm_t *pcm = device->device_data; + struct snd_pcm *pcm = device->device_data; return snd_pcm_free(pcm); } static void snd_pcm_tick_timer_func(unsigned long data) { - snd_pcm_substream_t *substream = (snd_pcm_substream_t*) data; + struct snd_pcm_substream *substream = (struct snd_pcm_substream *) data; snd_pcm_tick_elapsed(substream); } -int snd_pcm_open_substream(snd_pcm_t *pcm, int stream, - snd_pcm_substream_t **rsubstream) +int snd_pcm_open_substream(struct snd_pcm *pcm, int stream, + struct snd_pcm_substream **rsubstream) { - snd_pcm_str_t * pstr; - snd_pcm_substream_t * substream; - snd_pcm_runtime_t * runtime; - snd_ctl_file_t *kctl; - snd_card_t *card; + struct snd_pcm_str * pstr; + struct snd_pcm_substream *substream; + struct snd_pcm_runtime *runtime; + struct snd_ctl_file *kctl; + struct snd_card *card; struct list_head *list; int prefer_subdevice = -1; size_t size; @@ -800,7 +807,7 @@ int snd_pcm_open_substream(snd_pcm_t *pcm, int stream, if (runtime == NULL) return -ENOMEM; - size = PAGE_ALIGN(sizeof(snd_pcm_mmap_status_t)); + size = PAGE_ALIGN(sizeof(struct snd_pcm_mmap_status)); runtime->status = snd_malloc_pages(size, GFP_KERNEL); if (runtime->status == NULL) { kfree(runtime); @@ -808,10 +815,11 @@ int snd_pcm_open_substream(snd_pcm_t *pcm, int stream, } memset((void*)runtime->status, 0, size); - size = PAGE_ALIGN(sizeof(snd_pcm_mmap_control_t)); + size = PAGE_ALIGN(sizeof(struct snd_pcm_mmap_control)); runtime->control = snd_malloc_pages(size, GFP_KERNEL); if (runtime->control == NULL) { - snd_free_pages((void*)runtime->status, PAGE_ALIGN(sizeof(snd_pcm_mmap_status_t))); + snd_free_pages((void*)runtime->status, + PAGE_ALIGN(sizeof(struct snd_pcm_mmap_status))); kfree(runtime); return -ENOMEM; } @@ -832,30 +840,32 @@ int snd_pcm_open_substream(snd_pcm_t *pcm, int stream, return 0; } -void snd_pcm_release_substream(snd_pcm_substream_t *substream) +void snd_pcm_release_substream(struct snd_pcm_substream *substream) { - snd_pcm_runtime_t * runtime; + struct snd_pcm_runtime *runtime; substream->file = NULL; runtime = substream->runtime; snd_assert(runtime != NULL, return); if (runtime->private_free != NULL) runtime->private_free(runtime); - snd_free_pages((void*)runtime->status, PAGE_ALIGN(sizeof(snd_pcm_mmap_status_t))); - snd_free_pages((void*)runtime->control, PAGE_ALIGN(sizeof(snd_pcm_mmap_control_t))); + snd_free_pages((void*)runtime->status, + PAGE_ALIGN(sizeof(struct snd_pcm_mmap_status))); + snd_free_pages((void*)runtime->control, + PAGE_ALIGN(sizeof(struct snd_pcm_mmap_control))); kfree(runtime->hw_constraints.rules); kfree(runtime); substream->runtime = NULL; substream->pstr->substream_opened--; } -static int snd_pcm_dev_register(snd_device_t *device) +static int snd_pcm_dev_register(struct snd_device *device) { int idx, cidx, err; unsigned short minor; - snd_pcm_substream_t *substream; + struct snd_pcm_substream *substream; struct list_head *list; char str[16]; - snd_pcm_t *pcm = device->device_data; + struct snd_pcm *pcm = device->device_data; snd_assert(pcm != NULL && device != NULL, return -ENXIO); down(®ister_mutex); @@ -890,19 +900,19 @@ static int snd_pcm_dev_register(snd_device_t *device) snd_pcm_timer_init(substream); } list_for_each(list, &snd_pcm_notify_list) { - snd_pcm_notify_t *notify; - notify = list_entry(list, snd_pcm_notify_t, list); + struct snd_pcm_notify *notify; + notify = list_entry(list, struct snd_pcm_notify, list); notify->n_register(pcm); } up(®ister_mutex); return 0; } -static int snd_pcm_dev_disconnect(snd_device_t *device) +static int snd_pcm_dev_disconnect(struct snd_device *device) { - snd_pcm_t *pcm = device->device_data; + struct snd_pcm *pcm = device->device_data; struct list_head *list; - snd_pcm_substream_t *substream; + struct snd_pcm_substream *substream; int idx, cidx; down(®ister_mutex); @@ -913,20 +923,20 @@ static int snd_pcm_dev_disconnect(snd_device_t *device) if (substream->runtime) substream->runtime->status->state = SNDRV_PCM_STATE_DISCONNECTED; list_for_each(list, &snd_pcm_notify_list) { - snd_pcm_notify_t *notify; - notify = list_entry(list, snd_pcm_notify_t, list); + struct snd_pcm_notify *notify; + notify = list_entry(list, struct snd_pcm_notify, list); notify->n_disconnect(pcm); } up(®ister_mutex); return 0; } -static int snd_pcm_dev_unregister(snd_device_t *device) +static int snd_pcm_dev_unregister(struct snd_device *device) { int idx, cidx, devtype; - snd_pcm_substream_t *substream; + struct snd_pcm_substream *substream; struct list_head *list; - snd_pcm_t *pcm = device->device_data; + struct snd_pcm *pcm = device->device_data; snd_assert(pcm != NULL, return -ENXIO); down(®ister_mutex); @@ -947,15 +957,15 @@ static int snd_pcm_dev_unregister(snd_device_t *device) snd_pcm_timer_done(substream); } list_for_each(list, &snd_pcm_notify_list) { - snd_pcm_notify_t *notify; - notify = list_entry(list, snd_pcm_notify_t, list); + struct snd_pcm_notify *notify; + notify = list_entry(list, struct snd_pcm_notify, list); notify->n_unregister(pcm); } up(®ister_mutex); return snd_pcm_free(pcm); } -int snd_pcm_notify(snd_pcm_notify_t *notify, int nfree) +int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree) { int idx; @@ -984,10 +994,11 @@ int snd_pcm_notify(snd_pcm_notify_t *notify, int nfree) * Info interface */ -static void snd_pcm_proc_read(snd_info_entry_t *entry, snd_info_buffer_t * buffer) +static void snd_pcm_proc_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) { int idx; - snd_pcm_t *pcm; + struct snd_pcm *pcm; down(®ister_mutex); for (idx = 0; idx < SNDRV_CARDS * SNDRV_PCM_DEVICES; idx++) { @@ -997,9 +1008,11 @@ static void snd_pcm_proc_read(snd_info_entry_t *entry, snd_info_buffer_t * buffe snd_iprintf(buffer, "%02i-%02i: %s : %s", idx / SNDRV_PCM_DEVICES, idx % SNDRV_PCM_DEVICES, pcm->id, pcm->name); if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) - snd_iprintf(buffer, " : playback %i", pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream_count); + snd_iprintf(buffer, " : playback %i", + pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream_count); if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) - snd_iprintf(buffer, " : capture %i", pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream_count); + snd_iprintf(buffer, " : capture %i", + pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream_count); snd_iprintf(buffer, "\n"); } up(®ister_mutex); @@ -1009,16 +1022,17 @@ static void snd_pcm_proc_read(snd_info_entry_t *entry, snd_info_buffer_t * buffe * ENTRY functions */ -static snd_info_entry_t *snd_pcm_proc_entry = NULL; +static struct snd_info_entry *snd_pcm_proc_entry = NULL; static int __init alsa_pcm_init(void) { - snd_info_entry_t *entry; + struct snd_info_entry *entry; snd_ctl_register_ioctl(snd_pcm_control_ioctl); snd_ctl_register_ioctl_compat(snd_pcm_control_ioctl); if ((entry = snd_info_create_module_entry(THIS_MODULE, "pcm", NULL)) != NULL) { - snd_info_set_text_ops(entry, NULL, SNDRV_CARDS * SNDRV_PCM_DEVICES * 128, snd_pcm_proc_read); + snd_info_set_text_ops(entry, NULL, SNDRV_CARDS * SNDRV_PCM_DEVICES * 128, + snd_pcm_proc_read); if (snd_info_register(entry) < 0) { snd_info_free_entry(entry); entry = NULL; |