diff options
Diffstat (limited to 'sound/core/oss/pcm_oss.c')
| -rw-r--r-- | sound/core/oss/pcm_oss.c | 288 |
1 files changed, 109 insertions, 179 deletions
diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c index f8302b703a3..91114c7aeff 100644 --- a/sound/core/oss/pcm_oss.c +++ b/sound/core/oss/pcm_oss.c @@ -208,9 +208,8 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream, oss_buffer_size = runtime->oss.mmap_bytes; } - if (substream->oss.setup && - substream->oss.setup->period_size > 16) - oss_period_size = substream->oss.setup->period_size; + if (substream->oss.setup.period_size > 16) + oss_period_size = substream->oss.setup.period_size; else if (runtime->oss.fragshift) { oss_period_size = 1 << runtime->oss.fragshift; if (oss_period_size > oss_buffer_size / 2) @@ -252,10 +251,8 @@ static int snd_pcm_oss_period_size(struct snd_pcm_substream *substream, oss_periods = oss_buffer_size / oss_period_size; - if (substream->oss.setup) { - if (substream->oss.setup->periods > 1) - oss_periods = substream->oss.setup->periods; - } + if (substream->oss.setup.periods > 1) + oss_periods = substream->oss.setup.periods; s = snd_pcm_hw_param_value_max(slave_params, SNDRV_PCM_HW_PARAM_PERIODS, NULL); if (runtime->oss.maxfrags && s > runtime->oss.maxfrags) @@ -341,12 +338,10 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream) goto failure; } - if (atomic_read(&runtime->mmap_count)) { + if (atomic_read(&runtime->mmap_count)) direct = 1; - } else { - struct snd_pcm_oss_setup *setup = substream->oss.setup; - direct = (setup != NULL && setup->direct); - } + else + direct = substream->oss.setup.direct; _snd_pcm_hw_params_any(sparams); _snd_pcm_hw_param_setinteger(sparams, SNDRV_PCM_HW_PARAM_PERIODS); @@ -482,7 +477,7 @@ static int snd_pcm_oss_change_params(struct snd_pcm_substream *substream) 1 : runtime->period_size; sw_params->xfer_align = 1; if (atomic_read(&runtime->mmap_count) || - (substream->oss.setup && substream->oss.setup->nosilence)) { + substream->oss.setup.nosilence) { sw_params->silence_threshold = 0; sw_params->silence_size = 0; } else { @@ -843,7 +838,7 @@ static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const cha buf += tmp; bytes -= tmp; xfer += tmp; - if ((substream->oss.setup != NULL && substream->oss.setup->partialfrag) || + if (substream->oss.setup.partialfrag || runtime->oss.buffer_used == runtime->oss.period_bytes) { tmp = snd_pcm_oss_write2(substream, runtime->oss.buffer + runtime->oss.period_ptr, runtime->oss.buffer_used - runtime->oss.period_ptr, 1); @@ -959,12 +954,12 @@ static int snd_pcm_oss_reset(struct snd_pcm_oss_file *pcm_oss_file) substream = pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK]; if (substream != NULL) { - snd_pcm_kernel_playback_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL); + snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL); substream->runtime->oss.prepare = 1; } substream = pcm_oss_file->streams[SNDRV_PCM_STREAM_CAPTURE]; if (substream != NULL) { - snd_pcm_kernel_capture_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL); + snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL); substream->runtime->oss.prepare = 1; } return 0; @@ -979,7 +974,7 @@ static int snd_pcm_oss_post(struct snd_pcm_oss_file *pcm_oss_file) if (substream != NULL) { if ((err = snd_pcm_oss_make_ready(substream)) < 0) return err; - snd_pcm_kernel_playback_ioctl(substream, SNDRV_PCM_IOCTL_START, NULL); + snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_START, NULL); } /* note: all errors from the start action are ignored */ /* OSS apps do not know, how to handle them */ @@ -1108,7 +1103,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file) __direct: saved_f_flags = substream->ffile->f_flags; substream->ffile->f_flags &= ~O_NONBLOCK; - err = snd_pcm_kernel_playback_ioctl(substream, SNDRV_PCM_IOCTL_DRAIN, NULL); + err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DRAIN, NULL); substream->ffile->f_flags = saved_f_flags; if (err < 0) return err; @@ -1120,7 +1115,7 @@ static int snd_pcm_oss_sync(struct snd_pcm_oss_file *pcm_oss_file) if ((err = snd_pcm_oss_make_ready(substream)) < 0) return err; runtime = substream->runtime; - err = snd_pcm_kernel_capture_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL); + err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL); if (err < 0) return err; runtime->oss.buffer_used = 0; @@ -1214,12 +1209,10 @@ static int snd_pcm_oss_get_formats(struct snd_pcm_oss_file *pcm_oss_file) if ((err = snd_pcm_oss_get_active_substream(pcm_oss_file, &substream)) < 0) return err; - if (atomic_read(&substream->runtime->mmap_count)) { + if (atomic_read(&substream->runtime->mmap_count)) direct = 1; - } else { - struct snd_pcm_oss_setup *setup = substream->oss.setup; - direct = (setup != NULL && setup->direct); - } + else + direct = substream->oss.setup.direct; if (!direct) return AFMT_MU_LAW | AFMT_U8 | AFMT_S16_LE | AFMT_S16_BE | @@ -1437,7 +1430,7 @@ static int snd_pcm_oss_set_trigger(struct snd_pcm_oss_file *pcm_oss_file, int tr cmd = SNDRV_PCM_IOCTL_DROP; runtime->oss.prepare = 1; } - err = snd_pcm_kernel_playback_ioctl(psubstream, cmd, NULL); + err = snd_pcm_kernel_ioctl(psubstream, cmd, NULL); if (err < 0) return err; } @@ -1458,7 +1451,7 @@ static int snd_pcm_oss_set_trigger(struct snd_pcm_oss_file *pcm_oss_file, int tr cmd = SNDRV_PCM_IOCTL_DROP; runtime->oss.prepare = 1; } - err = snd_pcm_kernel_capture_ioctl(csubstream, cmd, NULL); + err = snd_pcm_kernel_ioctl(csubstream, cmd, NULL); if (err < 0) return err; } @@ -1495,7 +1488,7 @@ static int snd_pcm_oss_get_odelay(struct snd_pcm_oss_file *pcm_oss_file) runtime = substream->runtime; if (runtime->oss.params || runtime->oss.prepare) return 0; - err = snd_pcm_kernel_playback_ioctl(substream, SNDRV_PCM_IOCTL_DELAY, &delay); + err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DELAY, &delay); if (err == -EPIPE) delay = 0; /* hack for broken OSS applications */ else if (err < 0) @@ -1555,8 +1548,7 @@ static int snd_pcm_oss_get_ptr(struct snd_pcm_oss_file *pcm_oss_file, int stream } else { delay = snd_pcm_oss_bytes(substream, delay); if (stream == SNDRV_PCM_STREAM_PLAYBACK) { - struct snd_pcm_oss_setup *setup = substream->oss.setup; - if (setup && setup->buggyptr) + if (substream->oss.setup.buggyptr) info.blocks = (runtime->oss.buffer_bytes - delay - fixup) / runtime->oss.period_bytes; else info.blocks = (delay + fixup) / runtime->oss.period_bytes; @@ -1638,37 +1630,46 @@ static int snd_pcm_oss_get_mapbuf(struct snd_pcm_oss_file *pcm_oss_file, int str return -EINVAL; } -static struct snd_pcm_oss_setup *snd_pcm_oss_look_for_setup(struct snd_pcm *pcm, int stream, const char *task_name) +static const char *strip_task_path(const char *path) { - const char *ptr, *ptrl; - struct snd_pcm_oss_setup *setup; - - 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)) { - mutex_unlock(&pcm->streams[stream].oss.setup_mutex); - return setup; - } - } - ptr = ptrl = task_name; - while (*ptr) { + const char *ptr, *ptrl = NULL; + for (ptr = path; *ptr; ptr++) { if (*ptr == '/') ptrl = ptr + 1; - ptr++; } - if (ptrl == task_name) { - goto __not_found; - return NULL; - } - for (setup = pcm->streams[stream].oss.setup_list; setup; setup = setup->next) { - if (!strcmp(setup->task_name, ptrl)) { - mutex_unlock(&pcm->streams[stream].oss.setup_mutex); - return setup; + return ptrl; +} + +static void snd_pcm_oss_look_for_setup(struct snd_pcm *pcm, int stream, + const char *task_name, + struct snd_pcm_oss_setup *rsetup) +{ + struct snd_pcm_oss_setup *setup; + + mutex_lock(&pcm->streams[stream].oss.setup_mutex); + do { + for (setup = pcm->streams[stream].oss.setup_list; setup; + setup = setup->next) { + if (!strcmp(setup->task_name, task_name)) + goto out; } - } - __not_found: + } while ((task_name = strip_task_path(task_name)) != NULL); + out: + if (setup) + *rsetup = *setup; mutex_unlock(&pcm->streams[stream].oss.setup_mutex); - return NULL; +} + +static void snd_pcm_oss_release_substream(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime; + runtime = substream->runtime; + vfree(runtime->oss.buffer); + runtime->oss.buffer = NULL; +#ifdef CONFIG_SND_PCM_OSS_PLUGINS + snd_pcm_oss_plugin_clear(substream); +#endif + substream->oss.oss = 0; } static void snd_pcm_oss_init_substream(struct snd_pcm_substream *substream, @@ -1678,7 +1679,11 @@ static void snd_pcm_oss_init_substream(struct snd_pcm_substream *substream, struct snd_pcm_runtime *runtime; substream->oss.oss = 1; - substream->oss.setup = setup; + substream->oss.setup = *setup; + if (setup->nonblock) + substream->ffile->f_flags |= O_NONBLOCK; + else + substream->ffile->f_flags &= ~O_NONBLOCK; runtime = substream->runtime; runtime->oss.params = 1; runtime->oss.trigger = 1; @@ -1697,18 +1702,7 @@ static void snd_pcm_oss_init_substream(struct snd_pcm_substream *substream, runtime->oss.fragshift = 0; runtime->oss.maxfrags = 0; runtime->oss.subdivision = 0; -} - -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; + substream->pcm_release = snd_pcm_oss_release_substream; } static int snd_pcm_oss_release_file(struct snd_pcm_oss_file *pcm_oss_file) @@ -1717,23 +1711,8 @@ static int snd_pcm_oss_release_file(struct snd_pcm_oss_file *pcm_oss_file) snd_assert(pcm_oss_file != NULL, return -ENXIO); for (cidx = 0; cidx < 2; ++cidx) { struct snd_pcm_substream *substream = pcm_oss_file->streams[cidx]; - struct snd_pcm_runtime *runtime; - if (substream == NULL) - continue; - runtime = substream->runtime; - - snd_pcm_stream_lock_irq(substream); - if (snd_pcm_running(substream)) - snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP); - snd_pcm_stream_unlock_irq(substream); - if (substream->ffile != NULL) { - if (substream->ops->hw_free != NULL) - substream->ops->hw_free(substream); - substream->ops->close(substream); - substream->ffile = NULL; - } - snd_pcm_oss_release_substream(substream); - snd_pcm_release_substream(substream); + if (substream) + snd_pcm_release_substream(substream); } kfree(pcm_oss_file); return 0; @@ -1743,12 +1722,11 @@ static int snd_pcm_oss_open_file(struct file *file, struct snd_pcm *pcm, struct snd_pcm_oss_file **rpcm_oss_file, int minor, - struct snd_pcm_oss_setup *psetup, - struct snd_pcm_oss_setup *csetup) + struct snd_pcm_oss_setup *setup) { - int err = 0; + int idx, err; struct snd_pcm_oss_file *pcm_oss_file; - struct snd_pcm_substream *psubstream = NULL, *csubstream = NULL; + struct snd_pcm_substream *substream; unsigned int f_mode = file->f_mode; snd_assert(rpcm_oss_file != NULL, return -EINVAL); @@ -1761,73 +1739,31 @@ static int snd_pcm_oss_open_file(struct file *file, if ((f_mode & (FMODE_WRITE|FMODE_READ)) == (FMODE_WRITE|FMODE_READ) && (pcm->info_flags & SNDRV_PCM_INFO_HALF_DUPLEX)) f_mode = FMODE_WRITE; - if ((f_mode & FMODE_WRITE) && !(psetup && psetup->disable)) { - if ((err = snd_pcm_open_substream(pcm, SNDRV_PCM_STREAM_PLAYBACK, - &psubstream)) < 0) { + + for (idx = 0; idx < 2; idx++) { + if (setup[idx].disable) + continue; + if (idx == SNDRV_PCM_STREAM_PLAYBACK) { + if (! (f_mode & FMODE_WRITE)) + continue; + } else { + if (! (f_mode & FMODE_READ)) + continue; + } + err = snd_pcm_open_substream(pcm, idx, file, &substream); + if (err < 0) { snd_pcm_oss_release_file(pcm_oss_file); return err; } - pcm_oss_file->streams[SNDRV_PCM_STREAM_PLAYBACK] = psubstream; - } - if ((f_mode & FMODE_READ) && !(csetup && csetup->disable)) { - if ((err = snd_pcm_open_substream(pcm, SNDRV_PCM_STREAM_CAPTURE, - &csubstream)) < 0) { - if (!(f_mode & FMODE_WRITE) || err != -ENODEV) { - snd_pcm_oss_release_file(pcm_oss_file); - return err; - } else { - csubstream = NULL; - } - } - pcm_oss_file->streams[SNDRV_PCM_STREAM_CAPTURE] = csubstream; + + pcm_oss_file->streams[idx] = substream; + snd_pcm_oss_init_substream(substream, &setup[idx], minor); } - if (psubstream == NULL && csubstream == NULL) { + if (! pcm_oss_file->streams[0] && pcm_oss_file->streams[1]) { snd_pcm_oss_release_file(pcm_oss_file); return -EINVAL; } - if (psubstream != NULL) { - psubstream->oss.file = pcm_oss_file; - err = snd_pcm_hw_constraints_init(psubstream); - if (err < 0) { - snd_printd("snd_pcm_hw_constraint_init failed\n"); - snd_pcm_oss_release_file(pcm_oss_file); - return err; - } - if ((err = psubstream->ops->open(psubstream)) < 0) { - snd_pcm_oss_release_file(pcm_oss_file); - return err; - } - psubstream->ffile = file; - err = snd_pcm_hw_constraints_complete(psubstream); - if (err < 0) { - snd_printd("snd_pcm_hw_constraint_complete failed\n"); - snd_pcm_oss_release_file(pcm_oss_file); - return err; - } - snd_pcm_oss_init_substream(psubstream, psetup, minor); - } - if (csubstream != NULL) { - csubstream->oss.file = pcm_oss_file; - err = snd_pcm_hw_constraints_init(csubstream); - if (err < 0) { - snd_printd("snd_pcm_hw_constraint_init failed\n"); - snd_pcm_oss_release_file(pcm_oss_file); - return err; - } - if ((err = csubstream->ops->open(csubstream)) < 0) { - snd_pcm_oss_release_file(pcm_oss_file); - return err; - } - csubstream->ffile = file; - err = snd_pcm_hw_constraints_complete(csubstream); - if (err < 0) { - snd_printd("snd_pcm_hw_constraint_complete failed\n"); - snd_pcm_oss_release_file(pcm_oss_file); - return err; - } - snd_pcm_oss_init_substream(csubstream, csetup, minor); - } file->private_data = pcm_oss_file; *rpcm_oss_file = pcm_oss_file; @@ -1852,7 +1788,7 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file) char task_name[32]; struct snd_pcm *pcm; struct snd_pcm_oss_file *pcm_oss_file; - struct snd_pcm_oss_setup *psetup = NULL, *csetup = NULL; + struct snd_pcm_oss_setup setup[2]; int nonblock; wait_queue_t wait; @@ -1873,23 +1809,15 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file) err = -EFAULT; goto __error; } + memset(setup, 0, sizeof(*setup)); if (file->f_mode & FMODE_WRITE) - psetup = snd_pcm_oss_look_for_setup(pcm, SNDRV_PCM_STREAM_PLAYBACK, task_name); + snd_pcm_oss_look_for_setup(pcm, SNDRV_PCM_STREAM_PLAYBACK, + task_name, &setup[0]); if (file->f_mode & FMODE_READ) - csetup = snd_pcm_oss_look_for_setup(pcm, SNDRV_PCM_STREAM_CAPTURE, task_name); + snd_pcm_oss_look_for_setup(pcm, SNDRV_PCM_STREAM_CAPTURE, + task_name, &setup[1]); nonblock = !!(file->f_flags & O_NONBLOCK); - if (psetup && !psetup->disable) { - if (psetup->nonblock) - nonblock = 1; - else if (psetup->block) - nonblock = 0; - } else if (csetup && !csetup->disable) { - if (csetup->nonblock) - nonblock = 1; - else if (csetup->block) - nonblock = 0; - } if (!nonblock) nonblock = nonblock_open; @@ -1898,7 +1826,7 @@ static int snd_pcm_oss_open(struct inode *inode, struct file *file) mutex_lock(&pcm->open_mutex); while (1) { err = snd_pcm_oss_open_file(file, pcm, &pcm_oss_file, - iminor(inode), psetup, csetup); + iminor(inode), setup); if (err >= 0) break; if (err == -EAGAIN) { @@ -2312,13 +2240,8 @@ static void snd_pcm_oss_proc_read(struct snd_info_entry *entry, static void snd_pcm_oss_proc_free_setup_list(struct snd_pcm_str * pstr) { - unsigned int idx; - struct snd_pcm_substream *substream; struct snd_pcm_oss_setup *setup, *setupn; - for (idx = 0, substream = pstr->substream; - idx < pstr->substream_count; idx++, substream = substream->next) - substream->oss.setup = NULL; for (setup = pstr->oss.setup_list, pstr->oss.setup_list = NULL; setup; setup = setupn) { setupn = setup->next; @@ -2379,21 +2302,28 @@ static void snd_pcm_oss_proc_write(struct snd_info_entry *entry, } } while (*str); if (setup == NULL) { - setup = kmalloc(sizeof(struct snd_pcm_oss_setup), GFP_KERNEL); - if (setup) { - if (pstr->oss.setup_list == NULL) { - pstr->oss.setup_list = setup; - } else { - for (setup1 = pstr->oss.setup_list; setup1->next; setup1 = setup1->next); - setup1->next = setup; - } - template.task_name = kstrdup(task_name, GFP_KERNEL); - } else { + setup = kmalloc(sizeof(*setup), GFP_KERNEL); + if (! setup) { + buffer->error = -ENOMEM; + mutex_lock(&pstr->oss.setup_mutex); + return; + } + if (pstr->oss.setup_list == NULL) + pstr->oss.setup_list = setup; + else { + for (setup1 = pstr->oss.setup_list; + setup1->next; setup1 = setup1->next); + setup1->next = setup; + } + template.task_name = kstrdup(task_name, GFP_KERNEL); + if (! template.task_name) { + kfree(setup); buffer->error = -ENOMEM; + mutex_lock(&pstr->oss.setup_mutex); + return; } } - if (setup) - *setup = template; + *setup = template; mutex_unlock(&pstr->oss.setup_mutex); } } |