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sound/core/pcm_native.c
93.5 KB
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/* * Digital Audio (PCM) abstract layer |
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz> |
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* * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ |
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#include <linux/mm.h> |
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#include <linux/module.h> |
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#include <linux/file.h> #include <linux/slab.h> #include <linux/time.h> |
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#include <linux/pm_qos.h> |
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#include <linux/uio.h> |
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#include <linux/dma-mapping.h> |
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#include <sound/core.h> #include <sound/control.h> #include <sound/info.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/timer.h> #include <sound/minors.h> #include <asm/io.h> |
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#if defined(CONFIG_MIPS) && defined(CONFIG_DMA_NONCOHERENT) #include <dma-coherence.h> #endif |
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/* * Compatibility */ |
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struct snd_pcm_hw_params_old { |
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unsigned int flags; unsigned int masks[SNDRV_PCM_HW_PARAM_SUBFORMAT - SNDRV_PCM_HW_PARAM_ACCESS + 1]; |
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struct snd_interval intervals[SNDRV_PCM_HW_PARAM_TICK_TIME - |
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SNDRV_PCM_HW_PARAM_SAMPLE_BITS + 1]; unsigned int rmask; unsigned int cmask; unsigned int info; unsigned int msbits; unsigned int rate_num; unsigned int rate_den; |
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snd_pcm_uframes_t fifo_size; |
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unsigned char reserved[64]; }; |
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#ifdef CONFIG_SND_SUPPORT_OLD_API |
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#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) |
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static int snd_pcm_hw_refine_old_user(struct snd_pcm_substream *substream, 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); |
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#endif |
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static int snd_pcm_open(struct file *file, struct snd_pcm *pcm, int stream); |
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/* * */ DEFINE_RWLOCK(snd_pcm_link_rwlock); |
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EXPORT_SYMBOL(snd_pcm_link_rwlock); |
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static DECLARE_RWSEM(snd_pcm_link_rwsem); |
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static inline mm_segment_t snd_enter_user(void) { mm_segment_t fs = get_fs(); set_fs(get_ds()); return fs; } static inline void snd_leave_user(mm_segment_t fs) { set_fs(fs); } |
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int snd_pcm_info(struct snd_pcm_substream *substream, struct snd_pcm_info *info) |
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{ |
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struct snd_pcm_runtime *runtime; struct snd_pcm *pcm = substream->pcm; struct snd_pcm_str *pstr = substream->pstr; |
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memset(info, 0, sizeof(*info)); info->card = pcm->card->number; info->device = pcm->device; info->stream = substream->stream; info->subdevice = substream->number; strlcpy(info->id, pcm->id, sizeof(info->id)); strlcpy(info->name, pcm->name, sizeof(info->name)); info->dev_class = pcm->dev_class; info->dev_subclass = pcm->dev_subclass; info->subdevices_count = pstr->substream_count; info->subdevices_avail = pstr->substream_count - pstr->substream_opened; strlcpy(info->subname, substream->name, sizeof(info->subname)); runtime = substream->runtime; /* AB: FIXME!!! This is definitely nonsense */ if (runtime) { info->sync = runtime->sync; substream->ops->ioctl(substream, SNDRV_PCM_IOCTL1_INFO, info); } return 0; } |
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int snd_pcm_info_user(struct snd_pcm_substream *substream, struct snd_pcm_info __user * _info) |
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{ |
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struct snd_pcm_info *info; |
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int err; info = kmalloc(sizeof(*info), GFP_KERNEL); if (! info) return -ENOMEM; err = snd_pcm_info(substream, info); if (err >= 0) { if (copy_to_user(_info, info, sizeof(*info))) err = -EFAULT; } kfree(info); return err; } #undef RULES_DEBUG #ifdef RULES_DEBUG #define HW_PARAM(v) [SNDRV_PCM_HW_PARAM_##v] = #v |
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static const char * const snd_pcm_hw_param_names[] = { |
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HW_PARAM(ACCESS), HW_PARAM(FORMAT), HW_PARAM(SUBFORMAT), HW_PARAM(SAMPLE_BITS), HW_PARAM(FRAME_BITS), HW_PARAM(CHANNELS), HW_PARAM(RATE), HW_PARAM(PERIOD_TIME), HW_PARAM(PERIOD_SIZE), HW_PARAM(PERIOD_BYTES), HW_PARAM(PERIODS), HW_PARAM(BUFFER_TIME), HW_PARAM(BUFFER_SIZE), HW_PARAM(BUFFER_BYTES), HW_PARAM(TICK_TIME), }; #endif |
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int snd_pcm_hw_refine(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) |
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{ unsigned int k; |
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struct snd_pcm_hardware *hw; struct snd_interval *i = NULL; struct snd_mask *m = NULL; struct snd_pcm_hw_constraints *constrs = &substream->runtime->hw_constraints; |
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unsigned int rstamps[constrs->rules_num]; unsigned int vstamps[SNDRV_PCM_HW_PARAM_LAST_INTERVAL + 1]; unsigned int stamp = 2; int changed, again; params->info = 0; params->fifo_size = 0; if (params->rmask & (1 << SNDRV_PCM_HW_PARAM_SAMPLE_BITS)) params->msbits = 0; if (params->rmask & (1 << SNDRV_PCM_HW_PARAM_RATE)) { params->rate_num = 0; params->rate_den = 0; } for (k = SNDRV_PCM_HW_PARAM_FIRST_MASK; k <= SNDRV_PCM_HW_PARAM_LAST_MASK; k++) { m = hw_param_mask(params, k); if (snd_mask_empty(m)) return -EINVAL; if (!(params->rmask & (1 << k))) continue; #ifdef RULES_DEBUG |
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printk(KERN_DEBUG "%s = ", snd_pcm_hw_param_names[k]); |
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printk("%04x%04x%04x%04x -> ", m->bits[3], m->bits[2], m->bits[1], m->bits[0]); #endif changed = snd_mask_refine(m, constrs_mask(constrs, k)); #ifdef RULES_DEBUG printk("%04x%04x%04x%04x ", m->bits[3], m->bits[2], m->bits[1], m->bits[0]); #endif if (changed) params->cmask |= 1 << k; if (changed < 0) return changed; } for (k = SNDRV_PCM_HW_PARAM_FIRST_INTERVAL; k <= SNDRV_PCM_HW_PARAM_LAST_INTERVAL; k++) { i = hw_param_interval(params, k); if (snd_interval_empty(i)) return -EINVAL; if (!(params->rmask & (1 << k))) continue; #ifdef RULES_DEBUG |
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printk(KERN_DEBUG "%s = ", snd_pcm_hw_param_names[k]); |
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if (i->empty) printk("empty"); else printk("%c%u %u%c", i->openmin ? '(' : '[', i->min, i->max, i->openmax ? ')' : ']'); printk(" -> "); #endif changed = snd_interval_refine(i, constrs_interval(constrs, k)); #ifdef RULES_DEBUG if (i->empty) printk("empty "); else printk("%c%u %u%c ", i->openmin ? '(' : '[', i->min, i->max, i->openmax ? ')' : ']'); #endif if (changed) params->cmask |= 1 << k; if (changed < 0) return changed; } for (k = 0; k < constrs->rules_num; k++) rstamps[k] = 0; for (k = 0; k <= SNDRV_PCM_HW_PARAM_LAST_INTERVAL; k++) vstamps[k] = (params->rmask & (1 << k)) ? 1 : 0; do { again = 0; for (k = 0; k < constrs->rules_num; k++) { |
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struct snd_pcm_hw_rule *r = &constrs->rules[k]; |
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unsigned int d; int doit = 0; if (r->cond && !(r->cond & params->flags)) continue; for (d = 0; r->deps[d] >= 0; d++) { if (vstamps[r->deps[d]] > rstamps[k]) { doit = 1; break; } } if (!doit) continue; #ifdef RULES_DEBUG |
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printk(KERN_DEBUG "Rule %d [%p]: ", k, r->func); |
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if (r->var >= 0) { printk("%s = ", snd_pcm_hw_param_names[r->var]); if (hw_is_mask(r->var)) { m = hw_param_mask(params, r->var); printk("%x", *m->bits); } else { i = hw_param_interval(params, r->var); if (i->empty) printk("empty"); else printk("%c%u %u%c", i->openmin ? '(' : '[', i->min, i->max, i->openmax ? ')' : ']'); } } #endif changed = r->func(params, r); #ifdef RULES_DEBUG if (r->var >= 0) { printk(" -> "); if (hw_is_mask(r->var)) printk("%x", *m->bits); else { if (i->empty) printk("empty"); else printk("%c%u %u%c", i->openmin ? '(' : '[', i->min, i->max, i->openmax ? ')' : ']'); } } printk(" "); #endif rstamps[k] = stamp; if (changed && r->var >= 0) { params->cmask |= (1 << r->var); vstamps[r->var] = stamp; again = 1; } if (changed < 0) return changed; stamp++; } } while (again); if (!params->msbits) { i = hw_param_interval(params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS); if (snd_interval_single(i)) params->msbits = snd_interval_value(i); } if (!params->rate_den) { i = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); if (snd_interval_single(i)) { params->rate_num = snd_interval_value(i); params->rate_den = 1; } } hw = &substream->runtime->hw; if (!params->info) |
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params->info = hw->info & ~SNDRV_PCM_INFO_FIFO_IN_FRAMES; if (!params->fifo_size) { |
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m = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); i = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); if (snd_mask_min(m) == snd_mask_max(m) && snd_interval_min(i) == snd_interval_max(i)) { |
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changed = substream->ops->ioctl(substream, SNDRV_PCM_IOCTL1_FIFO_SIZE, params); |
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if (changed < 0) |
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return changed; } } |
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params->rmask = 0; return 0; } |
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EXPORT_SYMBOL(snd_pcm_hw_refine); |
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static int snd_pcm_hw_refine_user(struct snd_pcm_substream *substream, struct snd_pcm_hw_params __user * _params) |
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{ |
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struct snd_pcm_hw_params *params; |
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int err; |
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params = memdup_user(_params, sizeof(*params)); if (IS_ERR(params)) return PTR_ERR(params); |
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err = snd_pcm_hw_refine(substream, params); if (copy_to_user(_params, params, sizeof(*params))) { if (!err) err = -EFAULT; } |
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kfree(params); return err; } |
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static int period_to_usecs(struct snd_pcm_runtime *runtime) { int usecs; if (! runtime->rate) return -1; /* invalid */ /* take 75% of period time as the deadline */ usecs = (750000 / runtime->rate) * runtime->period_size; usecs += ((750000 % runtime->rate) * runtime->period_size) / runtime->rate; return usecs; } |
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static int snd_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) |
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{ |
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struct snd_pcm_runtime *runtime; |
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int err, usecs; |
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unsigned int bits; snd_pcm_uframes_t frames; |
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if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; |
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runtime = substream->runtime; |
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snd_pcm_stream_lock_irq(substream); switch (runtime->status->state) { case SNDRV_PCM_STATE_OPEN: case SNDRV_PCM_STATE_SETUP: case SNDRV_PCM_STATE_PREPARED: break; default: snd_pcm_stream_unlock_irq(substream); return -EBADFD; } snd_pcm_stream_unlock_irq(substream); #if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE) if (!substream->oss.oss) #endif |
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if (atomic_read(&substream->mmap_count)) |
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return -EBADFD; params->rmask = ~0U; err = snd_pcm_hw_refine(substream, params); if (err < 0) goto _error; err = snd_pcm_hw_params_choose(substream, params); if (err < 0) goto _error; if (substream->ops->hw_params != NULL) { err = substream->ops->hw_params(substream, params); if (err < 0) goto _error; } runtime->access = params_access(params); runtime->format = params_format(params); runtime->subformat = params_subformat(params); runtime->channels = params_channels(params); runtime->rate = params_rate(params); runtime->period_size = params_period_size(params); runtime->periods = params_periods(params); runtime->buffer_size = params_buffer_size(params); |
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runtime->info = params->info; runtime->rate_num = params->rate_num; runtime->rate_den = params->rate_den; |
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runtime->no_period_wakeup = (params->info & SNDRV_PCM_INFO_NO_PERIOD_WAKEUP) && (params->flags & SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP); |
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bits = snd_pcm_format_physical_width(runtime->format); runtime->sample_bits = bits; bits *= runtime->channels; runtime->frame_bits = bits; frames = 1; while (bits % 8 != 0) { bits *= 2; frames *= 2; } runtime->byte_align = bits / 8; runtime->min_align = frames; /* Default sw params */ runtime->tstamp_mode = SNDRV_PCM_TSTAMP_NONE; runtime->period_step = 1; |
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runtime->control->avail_min = runtime->period_size; |
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runtime->start_threshold = 1; runtime->stop_threshold = runtime->buffer_size; runtime->silence_threshold = 0; runtime->silence_size = 0; |
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runtime->boundary = runtime->buffer_size; while (runtime->boundary * 2 <= LONG_MAX - runtime->buffer_size) runtime->boundary *= 2; |
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snd_pcm_timer_resolution_change(substream); runtime->status->state = SNDRV_PCM_STATE_SETUP; |
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if (pm_qos_request_active(&substream->latency_pm_qos_req)) pm_qos_remove_request(&substream->latency_pm_qos_req); |
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if ((usecs = period_to_usecs(runtime)) >= 0) |
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pm_qos_add_request(&substream->latency_pm_qos_req, PM_QOS_CPU_DMA_LATENCY, usecs); |
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return 0; _error: |
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/* hardware might be unusable from this time, |
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so we force application to retry to set the correct hardware parameter settings */ runtime->status->state = SNDRV_PCM_STATE_OPEN; if (substream->ops->hw_free != NULL) substream->ops->hw_free(substream); return err; } |
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static int snd_pcm_hw_params_user(struct snd_pcm_substream *substream, struct snd_pcm_hw_params __user * _params) |
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{ |
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struct snd_pcm_hw_params *params; |
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int err; |
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params = memdup_user(_params, sizeof(*params)); if (IS_ERR(params)) return PTR_ERR(params); |
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err = snd_pcm_hw_params(substream, params); if (copy_to_user(_params, params, sizeof(*params))) { if (!err) err = -EFAULT; } |
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kfree(params); return err; } |
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static int snd_pcm_hw_free(struct snd_pcm_substream *substream) |
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{ |
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struct snd_pcm_runtime *runtime; |
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int result = 0; |
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if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; |
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runtime = substream->runtime; |
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snd_pcm_stream_lock_irq(substream); switch (runtime->status->state) { case SNDRV_PCM_STATE_SETUP: case SNDRV_PCM_STATE_PREPARED: break; default: snd_pcm_stream_unlock_irq(substream); return -EBADFD; } snd_pcm_stream_unlock_irq(substream); |
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if (atomic_read(&substream->mmap_count)) |
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return -EBADFD; if (substream->ops->hw_free) result = substream->ops->hw_free(substream); runtime->status->state = SNDRV_PCM_STATE_OPEN; |
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pm_qos_remove_request(&substream->latency_pm_qos_req); |
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return result; } |
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static int snd_pcm_sw_params(struct snd_pcm_substream *substream, struct snd_pcm_sw_params *params) |
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{ |
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struct snd_pcm_runtime *runtime; |
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int err; |
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if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; |
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runtime = substream->runtime; |
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snd_pcm_stream_lock_irq(substream); if (runtime->status->state == SNDRV_PCM_STATE_OPEN) { snd_pcm_stream_unlock_irq(substream); return -EBADFD; } snd_pcm_stream_unlock_irq(substream); if (params->tstamp_mode > SNDRV_PCM_TSTAMP_LAST) return -EINVAL; if (params->avail_min == 0) return -EINVAL; |
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if (params->silence_size >= runtime->boundary) { if (params->silence_threshold != 0) return -EINVAL; } else { if (params->silence_size > params->silence_threshold) return -EINVAL; if (params->silence_threshold > runtime->buffer_size) return -EINVAL; } |
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532 |
err = 0; |
1da177e4c Linux-2.6.12-rc2 |
533 534 |
snd_pcm_stream_lock_irq(substream); runtime->tstamp_mode = params->tstamp_mode; |
1da177e4c Linux-2.6.12-rc2 |
535 536 537 538 539 540 |
runtime->period_step = params->period_step; runtime->control->avail_min = params->avail_min; runtime->start_threshold = params->start_threshold; runtime->stop_threshold = params->stop_threshold; runtime->silence_threshold = params->silence_threshold; runtime->silence_size = params->silence_size; |
1da177e4c Linux-2.6.12-rc2 |
541 542 |
params->boundary = runtime->boundary; if (snd_pcm_running(substream)) { |
1da177e4c Linux-2.6.12-rc2 |
543 544 545 |
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && runtime->silence_size > 0) snd_pcm_playback_silence(substream, ULONG_MAX); |
1250932e4 ALSA: pcm_lib - o... |
546 |
err = snd_pcm_update_state(substream, runtime); |
1da177e4c Linux-2.6.12-rc2 |
547 548 |
} snd_pcm_stream_unlock_irq(substream); |
1250932e4 ALSA: pcm_lib - o... |
549 |
return err; |
1da177e4c Linux-2.6.12-rc2 |
550 |
} |
877211f5e [ALSA] Remove xxx... |
551 552 |
static int snd_pcm_sw_params_user(struct snd_pcm_substream *substream, struct snd_pcm_sw_params __user * _params) |
1da177e4c Linux-2.6.12-rc2 |
553 |
{ |
877211f5e [ALSA] Remove xxx... |
554 |
struct snd_pcm_sw_params params; |
1da177e4c Linux-2.6.12-rc2 |
555 556 557 558 559 560 561 562 |
int err; if (copy_from_user(¶ms, _params, sizeof(params))) return -EFAULT; err = snd_pcm_sw_params(substream, ¶ms); if (copy_to_user(_params, ¶ms, sizeof(params))) return -EFAULT; return err; } |
877211f5e [ALSA] Remove xxx... |
563 564 |
int snd_pcm_status(struct snd_pcm_substream *substream, struct snd_pcm_status *status) |
1da177e4c Linux-2.6.12-rc2 |
565 |
{ |
877211f5e [ALSA] Remove xxx... |
566 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
567 568 569 570 571 572 573 |
snd_pcm_stream_lock_irq(substream); status->state = runtime->status->state; status->suspended_state = runtime->status->suspended_state; if (status->state == SNDRV_PCM_STATE_OPEN) goto _end; status->trigger_tstamp = runtime->trigger_tstamp; |
8c1215868 [ALSA] PCM interf... |
574 |
if (snd_pcm_running(substream)) { |
1da177e4c Linux-2.6.12-rc2 |
575 |
snd_pcm_update_hw_ptr(substream); |
8c1215868 [ALSA] PCM interf... |
576 577 578 579 580 |
if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE) { status->tstamp = runtime->status->tstamp; goto _tstamp_end; } } |
a713b5834 [ALSA] PCM core -... |
581 |
snd_pcm_gettime(runtime, &status->tstamp); |
8c1215868 [ALSA] PCM interf... |
582 |
_tstamp_end: |
1da177e4c Linux-2.6.12-rc2 |
583 584 585 586 587 |
status->appl_ptr = runtime->control->appl_ptr; status->hw_ptr = runtime->status->hw_ptr; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { status->avail = snd_pcm_playback_avail(runtime); if (runtime->status->state == SNDRV_PCM_STATE_RUNNING || |
4bbe1ddf8 ALSA: Add extra d... |
588 |
runtime->status->state == SNDRV_PCM_STATE_DRAINING) { |
1da177e4c Linux-2.6.12-rc2 |
589 |
status->delay = runtime->buffer_size - status->avail; |
4bbe1ddf8 ALSA: Add extra d... |
590 591 |
status->delay += runtime->delay; } else |
1da177e4c Linux-2.6.12-rc2 |
592 593 594 595 |
status->delay = 0; } else { status->avail = snd_pcm_capture_avail(runtime); if (runtime->status->state == SNDRV_PCM_STATE_RUNNING) |
4bbe1ddf8 ALSA: Add extra d... |
596 |
status->delay = status->avail + runtime->delay; |
1da177e4c Linux-2.6.12-rc2 |
597 598 599 600 601 602 603 604 605 606 607 |
else status->delay = 0; } status->avail_max = runtime->avail_max; status->overrange = runtime->overrange; runtime->avail_max = 0; runtime->overrange = 0; _end: snd_pcm_stream_unlock_irq(substream); return 0; } |
877211f5e [ALSA] Remove xxx... |
608 609 |
static int snd_pcm_status_user(struct snd_pcm_substream *substream, struct snd_pcm_status __user * _status) |
1da177e4c Linux-2.6.12-rc2 |
610 |
{ |
877211f5e [ALSA] Remove xxx... |
611 |
struct snd_pcm_status status; |
1da177e4c Linux-2.6.12-rc2 |
612 613 |
int res; |
1da177e4c Linux-2.6.12-rc2 |
614 615 616 617 618 619 620 621 |
memset(&status, 0, sizeof(status)); res = snd_pcm_status(substream, &status); if (res < 0) return res; if (copy_to_user(_status, &status, sizeof(status))) return -EFAULT; return 0; } |
877211f5e [ALSA] Remove xxx... |
622 623 |
static int snd_pcm_channel_info(struct snd_pcm_substream *substream, struct snd_pcm_channel_info * info) |
1da177e4c Linux-2.6.12-rc2 |
624 |
{ |
877211f5e [ALSA] Remove xxx... |
625 |
struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
626 627 |
unsigned int channel; |
1da177e4c Linux-2.6.12-rc2 |
628 629 630 631 632 633 634 635 636 637 638 639 640 641 |
channel = info->channel; runtime = substream->runtime; snd_pcm_stream_lock_irq(substream); if (runtime->status->state == SNDRV_PCM_STATE_OPEN) { snd_pcm_stream_unlock_irq(substream); return -EBADFD; } snd_pcm_stream_unlock_irq(substream); if (channel >= runtime->channels) return -EINVAL; memset(info, 0, sizeof(*info)); info->channel = channel; return substream->ops->ioctl(substream, SNDRV_PCM_IOCTL1_CHANNEL_INFO, info); } |
877211f5e [ALSA] Remove xxx... |
642 643 |
static int snd_pcm_channel_info_user(struct snd_pcm_substream *substream, struct snd_pcm_channel_info __user * _info) |
1da177e4c Linux-2.6.12-rc2 |
644 |
{ |
877211f5e [ALSA] Remove xxx... |
645 |
struct snd_pcm_channel_info info; |
1da177e4c Linux-2.6.12-rc2 |
646 647 648 649 650 651 652 653 654 655 656 |
int res; if (copy_from_user(&info, _info, sizeof(info))) return -EFAULT; res = snd_pcm_channel_info(substream, &info); if (res < 0) return res; if (copy_to_user(_info, &info, sizeof(info))) return -EFAULT; return 0; } |
877211f5e [ALSA] Remove xxx... |
657 |
static void snd_pcm_trigger_tstamp(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
658 |
{ |
877211f5e [ALSA] Remove xxx... |
659 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
660 661 662 |
if (runtime->trigger_master == NULL) return; if (runtime->trigger_master == substream) { |
b751eef1f [ALSA] Use posix ... |
663 |
snd_pcm_gettime(runtime, &runtime->trigger_tstamp); |
1da177e4c Linux-2.6.12-rc2 |
664 665 666 667 668 669 670 671 |
} else { snd_pcm_trigger_tstamp(runtime->trigger_master); runtime->trigger_tstamp = runtime->trigger_master->runtime->trigger_tstamp; } runtime->trigger_master = NULL; } struct action_ops { |
877211f5e [ALSA] Remove xxx... |
672 673 674 675 |
int (*pre_action)(struct snd_pcm_substream *substream, int state); int (*do_action)(struct snd_pcm_substream *substream, int state); void (*undo_action)(struct snd_pcm_substream *substream, int state); void (*post_action)(struct snd_pcm_substream *substream, int state); |
1da177e4c Linux-2.6.12-rc2 |
676 677 678 679 680 681 682 683 |
}; /* * this functions is core for handling of linked stream * Note: the stream state might be changed also on failure * Note2: call with calling stream lock + link lock */ static int snd_pcm_action_group(struct action_ops *ops, |
877211f5e [ALSA] Remove xxx... |
684 |
struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
685 686 |
int state, int do_lock) { |
877211f5e [ALSA] Remove xxx... |
687 688 |
struct snd_pcm_substream *s = NULL; struct snd_pcm_substream *s1; |
1da177e4c Linux-2.6.12-rc2 |
689 |
int res = 0; |
ef991b95a [ALSA] Add snd_pc... |
690 |
snd_pcm_group_for_each_entry(s, substream) { |
1da177e4c Linux-2.6.12-rc2 |
691 |
if (do_lock && s != substream) |
208eee2a9 [ALSA] pcm_native... |
692 693 |
spin_lock_nested(&s->self_group.lock, SINGLE_DEPTH_NESTING); |
1da177e4c Linux-2.6.12-rc2 |
694 695 696 697 |
res = ops->pre_action(s, state); if (res < 0) goto _unlock; } |
ef991b95a [ALSA] Add snd_pc... |
698 |
snd_pcm_group_for_each_entry(s, substream) { |
1da177e4c Linux-2.6.12-rc2 |
699 700 701 |
res = ops->do_action(s, state); if (res < 0) { if (ops->undo_action) { |
ef991b95a [ALSA] Add snd_pc... |
702 |
snd_pcm_group_for_each_entry(s1, substream) { |
1da177e4c Linux-2.6.12-rc2 |
703 704 705 706 707 708 709 710 711 |
if (s1 == s) /* failed stream */ break; ops->undo_action(s1, state); } } s = NULL; /* unlock all */ goto _unlock; } } |
ef991b95a [ALSA] Add snd_pc... |
712 |
snd_pcm_group_for_each_entry(s, substream) { |
1da177e4c Linux-2.6.12-rc2 |
713 714 715 716 717 |
ops->post_action(s, state); } _unlock: if (do_lock) { /* unlock streams */ |
ef991b95a [ALSA] Add snd_pc... |
718 |
snd_pcm_group_for_each_entry(s1, substream) { |
1da177e4c Linux-2.6.12-rc2 |
719 720 721 722 723 724 725 726 727 728 729 730 731 |
if (s1 != substream) spin_unlock(&s1->self_group.lock); if (s1 == s) /* end */ break; } } return res; } /* * Note: call with stream lock */ static int snd_pcm_action_single(struct action_ops *ops, |
877211f5e [ALSA] Remove xxx... |
732 |
struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 |
int state) { int res; res = ops->pre_action(substream, state); if (res < 0) return res; res = ops->do_action(substream, state); if (res == 0) ops->post_action(substream, state); else if (ops->undo_action) ops->undo_action(substream, state); return res; } /* * Note: call with stream lock */ static int snd_pcm_action(struct action_ops *ops, |
877211f5e [ALSA] Remove xxx... |
752 |
struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 |
int state) { int res; if (snd_pcm_stream_linked(substream)) { if (!spin_trylock(&substream->group->lock)) { spin_unlock(&substream->self_group.lock); spin_lock(&substream->group->lock); spin_lock(&substream->self_group.lock); } res = snd_pcm_action_group(ops, substream, state, 1); spin_unlock(&substream->group->lock); } else { res = snd_pcm_action_single(ops, substream, state); } return res; } /* * Note: don't use any locks before */ static int snd_pcm_action_lock_irq(struct action_ops *ops, |
877211f5e [ALSA] Remove xxx... |
775 |
struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 |
int state) { int res; read_lock_irq(&snd_pcm_link_rwlock); if (snd_pcm_stream_linked(substream)) { spin_lock(&substream->group->lock); spin_lock(&substream->self_group.lock); res = snd_pcm_action_group(ops, substream, state, 1); spin_unlock(&substream->self_group.lock); spin_unlock(&substream->group->lock); } else { spin_lock(&substream->self_group.lock); res = snd_pcm_action_single(ops, substream, state); spin_unlock(&substream->self_group.lock); } read_unlock_irq(&snd_pcm_link_rwlock); return res; } /* */ static int snd_pcm_action_nonatomic(struct action_ops *ops, |
877211f5e [ALSA] Remove xxx... |
799 |
struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 |
int state) { int res; down_read(&snd_pcm_link_rwsem); if (snd_pcm_stream_linked(substream)) res = snd_pcm_action_group(ops, substream, state, 0); else res = snd_pcm_action_single(ops, substream, state); up_read(&snd_pcm_link_rwsem); return res; } /* * start callbacks */ |
877211f5e [ALSA] Remove xxx... |
816 |
static int snd_pcm_pre_start(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
817 |
{ |
877211f5e [ALSA] Remove xxx... |
818 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
819 820 821 822 823 824 825 826 |
if (runtime->status->state != SNDRV_PCM_STATE_PREPARED) return -EBADFD; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && !snd_pcm_playback_data(substream)) return -EPIPE; runtime->trigger_master = substream; return 0; } |
877211f5e [ALSA] Remove xxx... |
827 |
static int snd_pcm_do_start(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
828 829 830 831 832 |
{ if (substream->runtime->trigger_master != substream) return 0; return substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_START); } |
877211f5e [ALSA] Remove xxx... |
833 |
static void snd_pcm_undo_start(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
834 835 836 837 |
{ if (substream->runtime->trigger_master == substream) substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_STOP); } |
877211f5e [ALSA] Remove xxx... |
838 |
static void snd_pcm_post_start(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
839 |
{ |
877211f5e [ALSA] Remove xxx... |
840 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
841 |
snd_pcm_trigger_tstamp(substream); |
6af3fb72d ALSA: Fix invalid... |
842 |
runtime->hw_ptr_jiffies = jiffies; |
bd76af0f8 ALSA: pcm midleve... |
843 844 |
runtime->hw_ptr_buffer_jiffies = (runtime->buffer_size * HZ) / runtime->rate; |
1da177e4c Linux-2.6.12-rc2 |
845 846 847 848 |
runtime->status->state = state; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && runtime->silence_size > 0) snd_pcm_playback_silence(substream, ULONG_MAX); |
1da177e4c Linux-2.6.12-rc2 |
849 |
if (substream->timer) |
877211f5e [ALSA] Remove xxx... |
850 851 |
snd_timer_notify(substream->timer, SNDRV_TIMER_EVENT_MSTART, &runtime->trigger_tstamp); |
1da177e4c Linux-2.6.12-rc2 |
852 853 854 855 856 857 858 859 860 861 |
} static struct action_ops snd_pcm_action_start = { .pre_action = snd_pcm_pre_start, .do_action = snd_pcm_do_start, .undo_action = snd_pcm_undo_start, .post_action = snd_pcm_post_start }; /** |
1c85cc644 ALSA: kernel docs... |
862 |
* snd_pcm_start - start all linked streams |
df8db936e [ALSA] Fix DocBoo... |
863 |
* @substream: the PCM substream instance |
1da177e4c Linux-2.6.12-rc2 |
864 |
*/ |
877211f5e [ALSA] Remove xxx... |
865 |
int snd_pcm_start(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
866 |
{ |
877211f5e [ALSA] Remove xxx... |
867 868 |
return snd_pcm_action(&snd_pcm_action_start, substream, SNDRV_PCM_STATE_RUNNING); |
1da177e4c Linux-2.6.12-rc2 |
869 870 871 872 873 |
} /* * stop callbacks */ |
877211f5e [ALSA] Remove xxx... |
874 |
static int snd_pcm_pre_stop(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
875 |
{ |
877211f5e [ALSA] Remove xxx... |
876 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
877 878 879 880 881 |
if (runtime->status->state == SNDRV_PCM_STATE_OPEN) return -EBADFD; runtime->trigger_master = substream; return 0; } |
877211f5e [ALSA] Remove xxx... |
882 |
static int snd_pcm_do_stop(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
883 884 885 886 887 888 |
{ if (substream->runtime->trigger_master == substream && snd_pcm_running(substream)) substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_STOP); return 0; /* unconditonally stop all substreams */ } |
877211f5e [ALSA] Remove xxx... |
889 |
static void snd_pcm_post_stop(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
890 |
{ |
877211f5e [ALSA] Remove xxx... |
891 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
892 893 894 |
if (runtime->status->state != state) { snd_pcm_trigger_tstamp(substream); if (substream->timer) |
877211f5e [ALSA] Remove xxx... |
895 896 |
snd_timer_notify(substream->timer, SNDRV_TIMER_EVENT_MSTOP, &runtime->trigger_tstamp); |
1da177e4c Linux-2.6.12-rc2 |
897 |
runtime->status->state = state; |
1da177e4c Linux-2.6.12-rc2 |
898 899 |
} wake_up(&runtime->sleep); |
c91a988dc ALSA: pcm_core: F... |
900 |
wake_up(&runtime->tsleep); |
1da177e4c Linux-2.6.12-rc2 |
901 902 903 904 905 906 907 908 909 |
} static struct action_ops snd_pcm_action_stop = { .pre_action = snd_pcm_pre_stop, .do_action = snd_pcm_do_stop, .post_action = snd_pcm_post_stop }; /** |
1c85cc644 ALSA: kernel docs... |
910 |
* snd_pcm_stop - try to stop all running streams in the substream group |
df8db936e [ALSA] Fix DocBoo... |
911 912 |
* @substream: the PCM substream instance * @state: PCM state after stopping the stream |
1da177e4c Linux-2.6.12-rc2 |
913 |
* |
1c85cc644 ALSA: kernel docs... |
914 |
* The state of each stream is then changed to the given state unconditionally. |
1da177e4c Linux-2.6.12-rc2 |
915 |
*/ |
fea952e5c ALSA: core: spars... |
916 |
int snd_pcm_stop(struct snd_pcm_substream *substream, snd_pcm_state_t state) |
1da177e4c Linux-2.6.12-rc2 |
917 918 919 |
{ return snd_pcm_action(&snd_pcm_action_stop, substream, state); } |
e88e8ae63 [ALSA] Move OSS-s... |
920 |
EXPORT_SYMBOL(snd_pcm_stop); |
1da177e4c Linux-2.6.12-rc2 |
921 |
/** |
1c85cc644 ALSA: kernel docs... |
922 |
* snd_pcm_drain_done - stop the DMA only when the given stream is playback |
df8db936e [ALSA] Fix DocBoo... |
923 |
* @substream: the PCM substream |
1da177e4c Linux-2.6.12-rc2 |
924 |
* |
1c85cc644 ALSA: kernel docs... |
925 |
* After stopping, the state is changed to SETUP. |
1da177e4c Linux-2.6.12-rc2 |
926 927 |
* Unlike snd_pcm_stop(), this affects only the given stream. */ |
877211f5e [ALSA] Remove xxx... |
928 |
int snd_pcm_drain_done(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
929 |
{ |
877211f5e [ALSA] Remove xxx... |
930 931 |
return snd_pcm_action_single(&snd_pcm_action_stop, substream, SNDRV_PCM_STATE_SETUP); |
1da177e4c Linux-2.6.12-rc2 |
932 933 934 935 936 |
} /* * pause callbacks */ |
877211f5e [ALSA] Remove xxx... |
937 |
static int snd_pcm_pre_pause(struct snd_pcm_substream *substream, int push) |
1da177e4c Linux-2.6.12-rc2 |
938 |
{ |
877211f5e [ALSA] Remove xxx... |
939 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
940 941 942 943 944 945 946 947 948 949 |
if (!(runtime->info & SNDRV_PCM_INFO_PAUSE)) return -ENOSYS; if (push) { if (runtime->status->state != SNDRV_PCM_STATE_RUNNING) return -EBADFD; } else if (runtime->status->state != SNDRV_PCM_STATE_PAUSED) return -EBADFD; runtime->trigger_master = substream; return 0; } |
877211f5e [ALSA] Remove xxx... |
950 |
static int snd_pcm_do_pause(struct snd_pcm_substream *substream, int push) |
1da177e4c Linux-2.6.12-rc2 |
951 952 953 |
{ if (substream->runtime->trigger_master != substream) return 0; |
56385a12d ALSA: emu10k1 - d... |
954 955 956 957 |
/* some drivers might use hw_ptr to recover from the pause - update the hw_ptr now */ if (push) snd_pcm_update_hw_ptr(substream); |
6af3fb72d ALSA: Fix invalid... |
958 |
/* The jiffies check in snd_pcm_update_hw_ptr*() is done by |
b595076a1 tree-wide: fix co... |
959 |
* a delta between the current jiffies, this gives a large enough |
6af3fb72d ALSA: Fix invalid... |
960 961 962 |
* delta, effectively to skip the check once. */ substream->runtime->hw_ptr_jiffies = jiffies - HZ * 1000; |
1da177e4c Linux-2.6.12-rc2 |
963 964 965 966 |
return substream->ops->trigger(substream, push ? SNDRV_PCM_TRIGGER_PAUSE_PUSH : SNDRV_PCM_TRIGGER_PAUSE_RELEASE); } |
877211f5e [ALSA] Remove xxx... |
967 |
static void snd_pcm_undo_pause(struct snd_pcm_substream *substream, int push) |
1da177e4c Linux-2.6.12-rc2 |
968 969 970 971 972 973 |
{ if (substream->runtime->trigger_master == substream) substream->ops->trigger(substream, push ? SNDRV_PCM_TRIGGER_PAUSE_RELEASE : SNDRV_PCM_TRIGGER_PAUSE_PUSH); } |
877211f5e [ALSA] Remove xxx... |
974 |
static void snd_pcm_post_pause(struct snd_pcm_substream *substream, int push) |
1da177e4c Linux-2.6.12-rc2 |
975 |
{ |
877211f5e [ALSA] Remove xxx... |
976 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
977 978 979 980 |
snd_pcm_trigger_tstamp(substream); if (push) { runtime->status->state = SNDRV_PCM_STATE_PAUSED; if (substream->timer) |
877211f5e [ALSA] Remove xxx... |
981 982 983 |
snd_timer_notify(substream->timer, SNDRV_TIMER_EVENT_MPAUSE, &runtime->trigger_tstamp); |
1da177e4c Linux-2.6.12-rc2 |
984 |
wake_up(&runtime->sleep); |
c91a988dc ALSA: pcm_core: F... |
985 |
wake_up(&runtime->tsleep); |
1da177e4c Linux-2.6.12-rc2 |
986 987 |
} else { runtime->status->state = SNDRV_PCM_STATE_RUNNING; |
1da177e4c Linux-2.6.12-rc2 |
988 |
if (substream->timer) |
877211f5e [ALSA] Remove xxx... |
989 990 991 |
snd_timer_notify(substream->timer, SNDRV_TIMER_EVENT_MCONTINUE, &runtime->trigger_tstamp); |
1da177e4c Linux-2.6.12-rc2 |
992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 |
} } static struct action_ops snd_pcm_action_pause = { .pre_action = snd_pcm_pre_pause, .do_action = snd_pcm_do_pause, .undo_action = snd_pcm_undo_pause, .post_action = snd_pcm_post_pause }; /* * Push/release the pause for all linked streams. */ |
877211f5e [ALSA] Remove xxx... |
1005 |
static int snd_pcm_pause(struct snd_pcm_substream *substream, int push) |
1da177e4c Linux-2.6.12-rc2 |
1006 1007 1008 1009 1010 1011 |
{ return snd_pcm_action(&snd_pcm_action_pause, substream, push); } #ifdef CONFIG_PM /* suspend */ |
877211f5e [ALSA] Remove xxx... |
1012 |
static int snd_pcm_pre_suspend(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1013 |
{ |
877211f5e [ALSA] Remove xxx... |
1014 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1015 1016 1017 1018 1019 |
if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) return -EBUSY; runtime->trigger_master = substream; return 0; } |
877211f5e [ALSA] Remove xxx... |
1020 |
static int snd_pcm_do_suspend(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1021 |
{ |
877211f5e [ALSA] Remove xxx... |
1022 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1023 1024 1025 1026 1027 1028 1029 |
if (runtime->trigger_master != substream) return 0; if (! snd_pcm_running(substream)) return 0; substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_SUSPEND); return 0; /* suspend unconditionally */ } |
877211f5e [ALSA] Remove xxx... |
1030 |
static void snd_pcm_post_suspend(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1031 |
{ |
877211f5e [ALSA] Remove xxx... |
1032 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1033 1034 |
snd_pcm_trigger_tstamp(substream); if (substream->timer) |
877211f5e [ALSA] Remove xxx... |
1035 1036 |
snd_timer_notify(substream->timer, SNDRV_TIMER_EVENT_MSUSPEND, &runtime->trigger_tstamp); |
1da177e4c Linux-2.6.12-rc2 |
1037 1038 |
runtime->status->suspended_state = runtime->status->state; runtime->status->state = SNDRV_PCM_STATE_SUSPENDED; |
1da177e4c Linux-2.6.12-rc2 |
1039 |
wake_up(&runtime->sleep); |
c91a988dc ALSA: pcm_core: F... |
1040 |
wake_up(&runtime->tsleep); |
1da177e4c Linux-2.6.12-rc2 |
1041 1042 1043 1044 1045 1046 1047 1048 1049 |
} static struct action_ops snd_pcm_action_suspend = { .pre_action = snd_pcm_pre_suspend, .do_action = snd_pcm_do_suspend, .post_action = snd_pcm_post_suspend }; /** |
1c85cc644 ALSA: kernel docs... |
1050 |
* snd_pcm_suspend - trigger SUSPEND to all linked streams |
df8db936e [ALSA] Fix DocBoo... |
1051 |
* @substream: the PCM substream |
1da177e4c Linux-2.6.12-rc2 |
1052 |
* |
1da177e4c Linux-2.6.12-rc2 |
1053 1054 |
* After this call, all streams are changed to SUSPENDED state. */ |
877211f5e [ALSA] Remove xxx... |
1055 |
int snd_pcm_suspend(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
1056 1057 1058 |
{ int err; unsigned long flags; |
603bf524a [ALSA] pcm - NULL... |
1059 1060 |
if (! substream) return 0; |
1da177e4c Linux-2.6.12-rc2 |
1061 1062 1063 1064 1065 |
snd_pcm_stream_lock_irqsave(substream, flags); err = snd_pcm_action(&snd_pcm_action_suspend, substream, 0); snd_pcm_stream_unlock_irqrestore(substream, flags); return err; } |
e88e8ae63 [ALSA] Move OSS-s... |
1066 |
EXPORT_SYMBOL(snd_pcm_suspend); |
1da177e4c Linux-2.6.12-rc2 |
1067 |
/** |
1c85cc644 ALSA: kernel docs... |
1068 |
* snd_pcm_suspend_all - trigger SUSPEND to all substreams in the given pcm |
df8db936e [ALSA] Fix DocBoo... |
1069 |
* @pcm: the PCM instance |
1da177e4c Linux-2.6.12-rc2 |
1070 |
* |
1da177e4c Linux-2.6.12-rc2 |
1071 1072 |
* After this call, all streams are changed to SUSPENDED state. */ |
877211f5e [ALSA] Remove xxx... |
1073 |
int snd_pcm_suspend_all(struct snd_pcm *pcm) |
1da177e4c Linux-2.6.12-rc2 |
1074 |
{ |
877211f5e [ALSA] Remove xxx... |
1075 |
struct snd_pcm_substream *substream; |
1da177e4c Linux-2.6.12-rc2 |
1076 |
int stream, err = 0; |
603bf524a [ALSA] pcm - NULL... |
1077 1078 |
if (! pcm) return 0; |
1da177e4c Linux-2.6.12-rc2 |
1079 |
for (stream = 0; stream < 2; stream++) { |
877211f5e [ALSA] Remove xxx... |
1080 1081 |
for (substream = pcm->streams[stream].substream; substream; substream = substream->next) { |
1da177e4c Linux-2.6.12-rc2 |
1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 |
/* FIXME: the open/close code should lock this as well */ if (substream->runtime == NULL) continue; err = snd_pcm_suspend(substream); if (err < 0 && err != -EBUSY) return err; } } return 0; } |
e88e8ae63 [ALSA] Move OSS-s... |
1092 |
EXPORT_SYMBOL(snd_pcm_suspend_all); |
1da177e4c Linux-2.6.12-rc2 |
1093 |
/* resume */ |
877211f5e [ALSA] Remove xxx... |
1094 |
static int snd_pcm_pre_resume(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1095 |
{ |
877211f5e [ALSA] Remove xxx... |
1096 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1097 1098 1099 1100 1101 |
if (!(runtime->info & SNDRV_PCM_INFO_RESUME)) return -ENOSYS; runtime->trigger_master = substream; return 0; } |
877211f5e [ALSA] Remove xxx... |
1102 |
static int snd_pcm_do_resume(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1103 |
{ |
877211f5e [ALSA] Remove xxx... |
1104 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1105 1106 1107 1108 1109 1110 1111 1112 1113 |
if (runtime->trigger_master != substream) return 0; /* DMA not running previously? */ if (runtime->status->suspended_state != SNDRV_PCM_STATE_RUNNING && (runtime->status->suspended_state != SNDRV_PCM_STATE_DRAINING || substream->stream != SNDRV_PCM_STREAM_PLAYBACK)) return 0; return substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_RESUME); } |
877211f5e [ALSA] Remove xxx... |
1114 |
static void snd_pcm_undo_resume(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1115 1116 1117 1118 1119 |
{ if (substream->runtime->trigger_master == substream && snd_pcm_running(substream)) substream->ops->trigger(substream, SNDRV_PCM_TRIGGER_SUSPEND); } |
877211f5e [ALSA] Remove xxx... |
1120 |
static void snd_pcm_post_resume(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1121 |
{ |
877211f5e [ALSA] Remove xxx... |
1122 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1123 1124 |
snd_pcm_trigger_tstamp(substream); if (substream->timer) |
877211f5e [ALSA] Remove xxx... |
1125 1126 |
snd_timer_notify(substream->timer, SNDRV_TIMER_EVENT_MRESUME, &runtime->trigger_tstamp); |
1da177e4c Linux-2.6.12-rc2 |
1127 |
runtime->status->state = runtime->status->suspended_state; |
1da177e4c Linux-2.6.12-rc2 |
1128 1129 1130 1131 1132 1133 1134 1135 |
} static struct action_ops snd_pcm_action_resume = { .pre_action = snd_pcm_pre_resume, .do_action = snd_pcm_do_resume, .undo_action = snd_pcm_undo_resume, .post_action = snd_pcm_post_resume }; |
877211f5e [ALSA] Remove xxx... |
1136 |
static int snd_pcm_resume(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
1137 |
{ |
877211f5e [ALSA] Remove xxx... |
1138 |
struct snd_card *card = substream->pcm->card; |
1da177e4c Linux-2.6.12-rc2 |
1139 1140 1141 |
int res; snd_power_lock(card); |
cbac4b0cb [ALSA] Cleanup un... |
1142 |
if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0)) >= 0) |
1da177e4c Linux-2.6.12-rc2 |
1143 1144 1145 1146 1147 1148 |
res = snd_pcm_action_lock_irq(&snd_pcm_action_resume, substream, 0); snd_power_unlock(card); return res; } #else |
877211f5e [ALSA] Remove xxx... |
1149 |
static int snd_pcm_resume(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 |
{ return -ENOSYS; } #endif /* CONFIG_PM */ /* * xrun ioctl * * Change the RUNNING stream(s) to XRUN state. */ |
877211f5e [ALSA] Remove xxx... |
1161 |
static int snd_pcm_xrun(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
1162 |
{ |
877211f5e [ALSA] Remove xxx... |
1163 1164 |
struct snd_card *card = substream->pcm->card; struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1165 1166 1167 1168 |
int result; snd_power_lock(card); if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) { |
cbac4b0cb [ALSA] Cleanup un... |
1169 |
result = snd_power_wait(card, SNDRV_CTL_POWER_D0); |
1da177e4c Linux-2.6.12-rc2 |
1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 |
if (result < 0) goto _unlock; } snd_pcm_stream_lock_irq(substream); switch (runtime->status->state) { case SNDRV_PCM_STATE_XRUN: result = 0; /* already there */ break; case SNDRV_PCM_STATE_RUNNING: result = snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN); break; default: result = -EBADFD; } snd_pcm_stream_unlock_irq(substream); _unlock: snd_power_unlock(card); return result; } /* * reset ioctl */ |
877211f5e [ALSA] Remove xxx... |
1194 |
static int snd_pcm_pre_reset(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1195 |
{ |
877211f5e [ALSA] Remove xxx... |
1196 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 |
switch (runtime->status->state) { case SNDRV_PCM_STATE_RUNNING: case SNDRV_PCM_STATE_PREPARED: case SNDRV_PCM_STATE_PAUSED: case SNDRV_PCM_STATE_SUSPENDED: return 0; default: return -EBADFD; } } |
877211f5e [ALSA] Remove xxx... |
1207 |
static int snd_pcm_do_reset(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1208 |
{ |
877211f5e [ALSA] Remove xxx... |
1209 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1210 1211 1212 |
int err = substream->ops->ioctl(substream, SNDRV_PCM_IOCTL1_RESET, NULL); if (err < 0) return err; |
1da177e4c Linux-2.6.12-rc2 |
1213 |
runtime->hw_ptr_base = 0; |
e76369257 ALSA: pcm_lib - r... |
1214 1215 |
runtime->hw_ptr_interrupt = runtime->status->hw_ptr - runtime->status->hw_ptr % runtime->period_size; |
1da177e4c Linux-2.6.12-rc2 |
1216 1217 1218 1219 |
runtime->silence_start = runtime->status->hw_ptr; runtime->silence_filled = 0; return 0; } |
877211f5e [ALSA] Remove xxx... |
1220 |
static void snd_pcm_post_reset(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1221 |
{ |
877211f5e [ALSA] Remove xxx... |
1222 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 |
runtime->control->appl_ptr = runtime->status->hw_ptr; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && runtime->silence_size > 0) snd_pcm_playback_silence(substream, ULONG_MAX); } static struct action_ops snd_pcm_action_reset = { .pre_action = snd_pcm_pre_reset, .do_action = snd_pcm_do_reset, .post_action = snd_pcm_post_reset }; |
877211f5e [ALSA] Remove xxx... |
1234 |
static int snd_pcm_reset(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
1235 1236 1237 1238 1239 1240 1241 |
{ return snd_pcm_action_nonatomic(&snd_pcm_action_reset, substream, 0); } /* * prepare ioctl */ |
0df63e44c [ALSA] Add O_APPE... |
1242 1243 1244 |
/* we use the second argument for updating f_flags */ static int snd_pcm_pre_prepare(struct snd_pcm_substream *substream, int f_flags) |
1da177e4c Linux-2.6.12-rc2 |
1245 |
{ |
877211f5e [ALSA] Remove xxx... |
1246 |
struct snd_pcm_runtime *runtime = substream->runtime; |
de1b8b93a [ALSA] Fix hang-u... |
1247 1248 |
if (runtime->status->state == SNDRV_PCM_STATE_OPEN || runtime->status->state == SNDRV_PCM_STATE_DISCONNECTED) |
1da177e4c Linux-2.6.12-rc2 |
1249 1250 1251 |
return -EBADFD; if (snd_pcm_running(substream)) return -EBUSY; |
0df63e44c [ALSA] Add O_APPE... |
1252 |
substream->f_flags = f_flags; |
1da177e4c Linux-2.6.12-rc2 |
1253 1254 |
return 0; } |
877211f5e [ALSA] Remove xxx... |
1255 |
static int snd_pcm_do_prepare(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1256 1257 1258 1259 1260 1261 1262 |
{ int err; err = substream->ops->prepare(substream); if (err < 0) return err; return snd_pcm_do_reset(substream, 0); } |
877211f5e [ALSA] Remove xxx... |
1263 |
static void snd_pcm_post_prepare(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1264 |
{ |
877211f5e [ALSA] Remove xxx... |
1265 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 |
runtime->control->appl_ptr = runtime->status->hw_ptr; runtime->status->state = SNDRV_PCM_STATE_PREPARED; } static struct action_ops snd_pcm_action_prepare = { .pre_action = snd_pcm_pre_prepare, .do_action = snd_pcm_do_prepare, .post_action = snd_pcm_post_prepare }; /** |
1c85cc644 ALSA: kernel docs... |
1277 |
* snd_pcm_prepare - prepare the PCM substream to be triggerable |
df8db936e [ALSA] Fix DocBoo... |
1278 |
* @substream: the PCM substream instance |
0df63e44c [ALSA] Add O_APPE... |
1279 |
* @file: file to refer f_flags |
1da177e4c Linux-2.6.12-rc2 |
1280 |
*/ |
0df63e44c [ALSA] Add O_APPE... |
1281 1282 |
static int snd_pcm_prepare(struct snd_pcm_substream *substream, struct file *file) |
1da177e4c Linux-2.6.12-rc2 |
1283 1284 |
{ int res; |
877211f5e [ALSA] Remove xxx... |
1285 |
struct snd_card *card = substream->pcm->card; |
0df63e44c [ALSA] Add O_APPE... |
1286 1287 1288 1289 1290 1291 |
int f_flags; if (file) f_flags = file->f_flags; else f_flags = substream->f_flags; |
1da177e4c Linux-2.6.12-rc2 |
1292 1293 |
snd_power_lock(card); |
cbac4b0cb [ALSA] Cleanup un... |
1294 |
if ((res = snd_power_wait(card, SNDRV_CTL_POWER_D0)) >= 0) |
0df63e44c [ALSA] Add O_APPE... |
1295 1296 |
res = snd_pcm_action_nonatomic(&snd_pcm_action_prepare, substream, f_flags); |
1da177e4c Linux-2.6.12-rc2 |
1297 1298 1299 1300 1301 1302 1303 |
snd_power_unlock(card); return res; } /* * drain ioctl */ |
877211f5e [ALSA] Remove xxx... |
1304 |
static int snd_pcm_pre_drain_init(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1305 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1306 1307 1308 |
substream->runtime->trigger_master = substream; return 0; } |
877211f5e [ALSA] Remove xxx... |
1309 |
static int snd_pcm_do_drain_init(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1310 |
{ |
877211f5e [ALSA] Remove xxx... |
1311 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 |
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { switch (runtime->status->state) { case SNDRV_PCM_STATE_PREPARED: /* start playback stream if possible */ if (! snd_pcm_playback_empty(substream)) { snd_pcm_do_start(substream, SNDRV_PCM_STATE_DRAINING); snd_pcm_post_start(substream, SNDRV_PCM_STATE_DRAINING); } break; case SNDRV_PCM_STATE_RUNNING: runtime->status->state = SNDRV_PCM_STATE_DRAINING; break; default: break; } } else { /* stop running stream */ if (runtime->status->state == SNDRV_PCM_STATE_RUNNING) { |
b05e57874 [ALSA] pcm_native... |
1330 |
int new_state = snd_pcm_capture_avail(runtime) > 0 ? |
1da177e4c Linux-2.6.12-rc2 |
1331 |
SNDRV_PCM_STATE_DRAINING : SNDRV_PCM_STATE_SETUP; |
b05e57874 [ALSA] pcm_native... |
1332 1333 |
snd_pcm_do_stop(substream, new_state); snd_pcm_post_stop(substream, new_state); |
1da177e4c Linux-2.6.12-rc2 |
1334 1335 1336 1337 |
} } return 0; } |
877211f5e [ALSA] Remove xxx... |
1338 |
static void snd_pcm_post_drain_init(struct snd_pcm_substream *substream, int state) |
1da177e4c Linux-2.6.12-rc2 |
1339 1340 1341 1342 1343 1344 1345 1346 |
{ } static struct action_ops snd_pcm_action_drain_init = { .pre_action = snd_pcm_pre_drain_init, .do_action = snd_pcm_do_drain_init, .post_action = snd_pcm_post_drain_init }; |
877211f5e [ALSA] Remove xxx... |
1347 |
static int snd_pcm_drop(struct snd_pcm_substream *substream); |
1da177e4c Linux-2.6.12-rc2 |
1348 1349 1350 1351 1352 1353 1354 1355 |
/* * Drain the stream(s). * When the substream is linked, sync until the draining of all playback streams * is finished. * After this call, all streams are supposed to be either SETUP or DRAINING * (capture only) state. */ |
4cdc115fd ALSA: pcm - Fix d... |
1356 1357 |
static int snd_pcm_drain(struct snd_pcm_substream *substream, struct file *file) |
1da177e4c Linux-2.6.12-rc2 |
1358 |
{ |
877211f5e [ALSA] Remove xxx... |
1359 1360 |
struct snd_card *card; struct snd_pcm_runtime *runtime; |
ef991b95a [ALSA] Add snd_pc... |
1361 |
struct snd_pcm_substream *s; |
d3a7dcfee ALSA: pcm - Simpl... |
1362 |
wait_queue_t wait; |
1da177e4c Linux-2.6.12-rc2 |
1363 |
int result = 0; |
4cdc115fd ALSA: pcm - Fix d... |
1364 |
int nonblock = 0; |
1da177e4c Linux-2.6.12-rc2 |
1365 |
|
1da177e4c Linux-2.6.12-rc2 |
1366 1367 1368 1369 1370 |
card = substream->pcm->card; runtime = substream->runtime; if (runtime->status->state == SNDRV_PCM_STATE_OPEN) return -EBADFD; |
1da177e4c Linux-2.6.12-rc2 |
1371 1372 |
snd_power_lock(card); if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) { |
cbac4b0cb [ALSA] Cleanup un... |
1373 |
result = snd_power_wait(card, SNDRV_CTL_POWER_D0); |
21cb2a2ec [ALSA] Fix races ... |
1374 1375 1376 1377 |
if (result < 0) { snd_power_unlock(card); return result; } |
1da177e4c Linux-2.6.12-rc2 |
1378 |
} |
4cdc115fd ALSA: pcm - Fix d... |
1379 1380 1381 1382 1383 |
if (file) { if (file->f_flags & O_NONBLOCK) nonblock = 1; } else if (substream->f_flags & O_NONBLOCK) nonblock = 1; |
21cb2a2ec [ALSA] Fix races ... |
1384 |
down_read(&snd_pcm_link_rwsem); |
21cb2a2ec [ALSA] Fix races ... |
1385 1386 |
snd_pcm_stream_lock_irq(substream); /* resume pause */ |
d3a7dcfee ALSA: pcm - Simpl... |
1387 |
if (runtime->status->state == SNDRV_PCM_STATE_PAUSED) |
21cb2a2ec [ALSA] Fix races ... |
1388 1389 1390 1391 |
snd_pcm_pause(substream, 0); /* pre-start/stop - all running streams are changed to DRAINING state */ result = snd_pcm_action(&snd_pcm_action_drain_init, substream, 0); |
4cdc115fd ALSA: pcm - Fix d... |
1392 1393 1394 1395 1396 1397 |
if (result < 0) goto unlock; /* in non-blocking, we don't wait in ioctl but let caller poll */ if (nonblock) { result = -EAGAIN; goto unlock; |
21cb2a2ec [ALSA] Fix races ... |
1398 |
} |
1da177e4c Linux-2.6.12-rc2 |
1399 1400 1401 |
for (;;) { long tout; |
d3a7dcfee ALSA: pcm - Simpl... |
1402 |
struct snd_pcm_runtime *to_check; |
1da177e4c Linux-2.6.12-rc2 |
1403 1404 1405 1406 |
if (signal_pending(current)) { result = -ERESTARTSYS; break; } |
d3a7dcfee ALSA: pcm - Simpl... |
1407 1408 1409 1410 1411 1412 1413 1414 |
/* find a substream to drain */ to_check = NULL; snd_pcm_group_for_each_entry(s, substream) { if (s->stream != SNDRV_PCM_STREAM_PLAYBACK) continue; runtime = s->runtime; if (runtime->status->state == SNDRV_PCM_STATE_DRAINING) { to_check = runtime; |
21cb2a2ec [ALSA] Fix races ... |
1415 |
break; |
d3a7dcfee ALSA: pcm - Simpl... |
1416 |
} |
21cb2a2ec [ALSA] Fix races ... |
1417 |
} |
d3a7dcfee ALSA: pcm - Simpl... |
1418 1419 1420 1421 |
if (!to_check) break; /* all drained */ init_waitqueue_entry(&wait, current); add_wait_queue(&to_check->sleep, &wait); |
1da177e4c Linux-2.6.12-rc2 |
1422 |
snd_pcm_stream_unlock_irq(substream); |
d3a7dcfee ALSA: pcm - Simpl... |
1423 |
up_read(&snd_pcm_link_rwsem); |
1da177e4c Linux-2.6.12-rc2 |
1424 |
snd_power_unlock(card); |
f2b3614ce ALSA: PCM - Don't... |
1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 |
if (runtime->no_period_wakeup) tout = MAX_SCHEDULE_TIMEOUT; else { tout = 10; if (runtime->rate) { long t = runtime->period_size * 2 / runtime->rate; tout = max(t, tout); } tout = msecs_to_jiffies(tout * 1000); } tout = schedule_timeout_interruptible(tout); |
1da177e4c Linux-2.6.12-rc2 |
1436 |
snd_power_lock(card); |
d3a7dcfee ALSA: pcm - Simpl... |
1437 |
down_read(&snd_pcm_link_rwsem); |
1da177e4c Linux-2.6.12-rc2 |
1438 |
snd_pcm_stream_lock_irq(substream); |
d3a7dcfee ALSA: pcm - Simpl... |
1439 |
remove_wait_queue(&to_check->sleep, &wait); |
1da177e4c Linux-2.6.12-rc2 |
1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 |
if (tout == 0) { if (substream->runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) result = -ESTRPIPE; else { snd_printd("playback drain error (DMA or IRQ trouble?) "); snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP); result = -EIO; } break; } |
1da177e4c Linux-2.6.12-rc2 |
1451 |
} |
21cb2a2ec [ALSA] Fix races ... |
1452 |
|
4cdc115fd ALSA: pcm - Fix d... |
1453 |
unlock: |
21cb2a2ec [ALSA] Fix races ... |
1454 |
snd_pcm_stream_unlock_irq(substream); |
d3a7dcfee ALSA: pcm - Simpl... |
1455 |
up_read(&snd_pcm_link_rwsem); |
1da177e4c Linux-2.6.12-rc2 |
1456 |
snd_power_unlock(card); |
1da177e4c Linux-2.6.12-rc2 |
1457 1458 1459 1460 1461 1462 1463 1464 1465 |
return result; } /* * drop ioctl * * Immediately put all linked substreams into SETUP state. */ |
877211f5e [ALSA] Remove xxx... |
1466 |
static int snd_pcm_drop(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
1467 |
{ |
877211f5e [ALSA] Remove xxx... |
1468 |
struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
1469 1470 |
int result = 0; |
7eaa943c8 ALSA: Kill snd_as... |
1471 1472 |
if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; |
1da177e4c Linux-2.6.12-rc2 |
1473 |
runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
1474 |
|
de1b8b93a [ALSA] Fix hang-u... |
1475 |
if (runtime->status->state == SNDRV_PCM_STATE_OPEN || |
24e8fc498 ALSA: remove unne... |
1476 1477 |
runtime->status->state == SNDRV_PCM_STATE_DISCONNECTED || runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) |
1da177e4c Linux-2.6.12-rc2 |
1478 |
return -EBADFD; |
1da177e4c Linux-2.6.12-rc2 |
1479 1480 1481 1482 1483 1484 1485 1486 |
snd_pcm_stream_lock_irq(substream); /* resume pause */ if (runtime->status->state == SNDRV_PCM_STATE_PAUSED) snd_pcm_pause(substream, 0); snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP); /* runtime->control->appl_ptr = runtime->status->hw_ptr; */ snd_pcm_stream_unlock_irq(substream); |
24e8fc498 ALSA: remove unne... |
1487 |
|
1da177e4c Linux-2.6.12-rc2 |
1488 1489 1490 1491 1492 |
return result; } /* WARNING: Don't forget to fput back the file */ |
1da177e4c Linux-2.6.12-rc2 |
1493 1494 1495 1496 |
static struct file *snd_pcm_file_fd(int fd) { struct file *file; struct inode *inode; |
f87135f56 [ALSA] dynamic mi... |
1497 |
unsigned int minor; |
1da177e4c Linux-2.6.12-rc2 |
1498 1499 1500 |
file = fget(fd); if (!file) return NULL; |
7bc563239 [PATCH] struct pa... |
1501 |
inode = file->f_path.dentry->d_inode; |
1da177e4c Linux-2.6.12-rc2 |
1502 1503 1504 1505 1506 1507 |
if (!S_ISCHR(inode->i_mode) || imajor(inode) != snd_major) { fput(file); return NULL; } minor = iminor(inode); |
f87135f56 [ALSA] dynamic mi... |
1508 1509 |
if (!snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_PLAYBACK) && !snd_lookup_minor_data(minor, SNDRV_DEVICE_TYPE_PCM_CAPTURE)) { |
1da177e4c Linux-2.6.12-rc2 |
1510 1511 1512 1513 1514 1515 1516 1517 1518 |
fput(file); return NULL; } return file; } /* * PCM link handling */ |
877211f5e [ALSA] Remove xxx... |
1519 |
static int snd_pcm_link(struct snd_pcm_substream *substream, int fd) |
1da177e4c Linux-2.6.12-rc2 |
1520 1521 1522 |
{ int res = 0; struct file *file; |
877211f5e [ALSA] Remove xxx... |
1523 1524 |
struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream1; |
1da177e4c Linux-2.6.12-rc2 |
1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 |
file = snd_pcm_file_fd(fd); if (!file) return -EBADFD; pcm_file = file->private_data; substream1 = pcm_file->substream; down_write(&snd_pcm_link_rwsem); write_lock_irq(&snd_pcm_link_rwlock); if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN || substream->runtime->status->state != substream1->runtime->status->state) { res = -EBADFD; goto _end; } if (snd_pcm_stream_linked(substream1)) { res = -EALREADY; goto _end; } if (!snd_pcm_stream_linked(substream)) { |
877211f5e [ALSA] Remove xxx... |
1543 |
substream->group = kmalloc(sizeof(struct snd_pcm_group), GFP_ATOMIC); |
1da177e4c Linux-2.6.12-rc2 |
1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 |
if (substream->group == NULL) { res = -ENOMEM; goto _end; } spin_lock_init(&substream->group->lock); INIT_LIST_HEAD(&substream->group->substreams); list_add_tail(&substream->link_list, &substream->group->substreams); substream->group->count = 1; } list_add_tail(&substream1->link_list, &substream->group->substreams); substream->group->count++; substream1->group = substream->group; _end: write_unlock_irq(&snd_pcm_link_rwlock); up_write(&snd_pcm_link_rwsem); fput(file); return res; } |
877211f5e [ALSA] Remove xxx... |
1562 |
static void relink_to_local(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
1563 1564 1565 1566 1567 |
{ substream->group = &substream->self_group; INIT_LIST_HEAD(&substream->self_group.substreams); list_add_tail(&substream->link_list, &substream->self_group.substreams); } |
877211f5e [ALSA] Remove xxx... |
1568 |
static int snd_pcm_unlink(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
1569 |
{ |
ef991b95a [ALSA] Add snd_pc... |
1570 |
struct snd_pcm_substream *s; |
1da177e4c Linux-2.6.12-rc2 |
1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 |
int res = 0; down_write(&snd_pcm_link_rwsem); write_lock_irq(&snd_pcm_link_rwlock); if (!snd_pcm_stream_linked(substream)) { res = -EALREADY; goto _end; } list_del(&substream->link_list); substream->group->count--; if (substream->group->count == 1) { /* detach the last stream, too */ |
ef991b95a [ALSA] Add snd_pc... |
1582 1583 |
snd_pcm_group_for_each_entry(s, substream) { relink_to_local(s); |
1da177e4c Linux-2.6.12-rc2 |
1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 |
break; } kfree(substream->group); } relink_to_local(substream); _end: write_unlock_irq(&snd_pcm_link_rwlock); up_write(&snd_pcm_link_rwsem); return res; } /* * hw configurator */ |
877211f5e [ALSA] Remove xxx... |
1598 1599 |
static int snd_pcm_hw_rule_mul(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) |
1da177e4c Linux-2.6.12-rc2 |
1600 |
{ |
877211f5e [ALSA] Remove xxx... |
1601 |
struct snd_interval t; |
1da177e4c Linux-2.6.12-rc2 |
1602 1603 1604 1605 |
snd_interval_mul(hw_param_interval_c(params, rule->deps[0]), hw_param_interval_c(params, rule->deps[1]), &t); return snd_interval_refine(hw_param_interval(params, rule->var), &t); } |
877211f5e [ALSA] Remove xxx... |
1606 1607 |
static int snd_pcm_hw_rule_div(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) |
1da177e4c Linux-2.6.12-rc2 |
1608 |
{ |
877211f5e [ALSA] Remove xxx... |
1609 |
struct snd_interval t; |
1da177e4c Linux-2.6.12-rc2 |
1610 1611 1612 1613 |
snd_interval_div(hw_param_interval_c(params, rule->deps[0]), hw_param_interval_c(params, rule->deps[1]), &t); return snd_interval_refine(hw_param_interval(params, rule->var), &t); } |
877211f5e [ALSA] Remove xxx... |
1614 1615 |
static int snd_pcm_hw_rule_muldivk(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) |
1da177e4c Linux-2.6.12-rc2 |
1616 |
{ |
877211f5e [ALSA] Remove xxx... |
1617 |
struct snd_interval t; |
1da177e4c Linux-2.6.12-rc2 |
1618 1619 1620 1621 1622 |
snd_interval_muldivk(hw_param_interval_c(params, rule->deps[0]), hw_param_interval_c(params, rule->deps[1]), (unsigned long) rule->private, &t); return snd_interval_refine(hw_param_interval(params, rule->var), &t); } |
877211f5e [ALSA] Remove xxx... |
1623 1624 |
static int snd_pcm_hw_rule_mulkdiv(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) |
1da177e4c Linux-2.6.12-rc2 |
1625 |
{ |
877211f5e [ALSA] Remove xxx... |
1626 |
struct snd_interval t; |
1da177e4c Linux-2.6.12-rc2 |
1627 1628 1629 1630 1631 |
snd_interval_mulkdiv(hw_param_interval_c(params, rule->deps[0]), (unsigned long) rule->private, hw_param_interval_c(params, rule->deps[1]), &t); return snd_interval_refine(hw_param_interval(params, rule->var), &t); } |
877211f5e [ALSA] Remove xxx... |
1632 1633 |
static int snd_pcm_hw_rule_format(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) |
1da177e4c Linux-2.6.12-rc2 |
1634 1635 |
{ unsigned int k; |
877211f5e [ALSA] Remove xxx... |
1636 1637 1638 |
struct snd_interval *i = hw_param_interval(params, rule->deps[0]); struct snd_mask m; struct snd_mask *mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); |
1da177e4c Linux-2.6.12-rc2 |
1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 |
snd_mask_any(&m); for (k = 0; k <= SNDRV_PCM_FORMAT_LAST; ++k) { int bits; if (! snd_mask_test(mask, k)) continue; bits = snd_pcm_format_physical_width(k); if (bits <= 0) continue; /* ignore invalid formats */ if ((unsigned)bits < i->min || (unsigned)bits > i->max) snd_mask_reset(&m, k); } return snd_mask_refine(mask, &m); } |
877211f5e [ALSA] Remove xxx... |
1652 1653 |
static int snd_pcm_hw_rule_sample_bits(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) |
1da177e4c Linux-2.6.12-rc2 |
1654 |
{ |
877211f5e [ALSA] Remove xxx... |
1655 |
struct snd_interval t; |
1da177e4c Linux-2.6.12-rc2 |
1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 |
unsigned int k; t.min = UINT_MAX; t.max = 0; t.openmin = 0; t.openmax = 0; for (k = 0; k <= SNDRV_PCM_FORMAT_LAST; ++k) { int bits; if (! snd_mask_test(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), k)) continue; bits = snd_pcm_format_physical_width(k); if (bits <= 0) continue; /* ignore invalid formats */ if (t.min > (unsigned)bits) t.min = bits; if (t.max < (unsigned)bits) t.max = bits; } t.integer = 1; return snd_interval_refine(hw_param_interval(params, rule->var), &t); } #if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 12 #error "Change this table" #endif static unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000, 64000, 88200, 96000, 176400, 192000 }; |
7653d5576 [ALSA] pcm: merge... |
1683 1684 1685 1686 |
const struct snd_pcm_hw_constraint_list snd_pcm_known_rates = { .count = ARRAY_SIZE(rates), .list = rates, }; |
877211f5e [ALSA] Remove xxx... |
1687 1688 |
static int snd_pcm_hw_rule_rate(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) |
1da177e4c Linux-2.6.12-rc2 |
1689 |
{ |
877211f5e [ALSA] Remove xxx... |
1690 |
struct snd_pcm_hardware *hw = rule->private; |
1da177e4c Linux-2.6.12-rc2 |
1691 |
return snd_interval_list(hw_param_interval(params, rule->var), |
7653d5576 [ALSA] pcm: merge... |
1692 1693 |
snd_pcm_known_rates.count, snd_pcm_known_rates.list, hw->rates); |
1da177e4c Linux-2.6.12-rc2 |
1694 |
} |
877211f5e [ALSA] Remove xxx... |
1695 1696 |
static int snd_pcm_hw_rule_buffer_bytes_max(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) |
1da177e4c Linux-2.6.12-rc2 |
1697 |
{ |
877211f5e [ALSA] Remove xxx... |
1698 1699 |
struct snd_interval t; struct snd_pcm_substream *substream = rule->private; |
1da177e4c Linux-2.6.12-rc2 |
1700 1701 1702 1703 1704 1705 1706 |
t.min = 0; t.max = substream->buffer_bytes_max; t.openmin = 0; t.openmax = 0; t.integer = 1; return snd_interval_refine(hw_param_interval(params, rule->var), &t); } |
877211f5e [ALSA] Remove xxx... |
1707 |
int snd_pcm_hw_constraints_init(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
1708 |
{ |
877211f5e [ALSA] Remove xxx... |
1709 1710 |
struct snd_pcm_runtime *runtime = substream->runtime; struct snd_pcm_hw_constraints *constrs = &runtime->hw_constraints; |
1da177e4c Linux-2.6.12-rc2 |
1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 |
int k, err; for (k = SNDRV_PCM_HW_PARAM_FIRST_MASK; k <= SNDRV_PCM_HW_PARAM_LAST_MASK; k++) { snd_mask_any(constrs_mask(constrs, k)); } for (k = SNDRV_PCM_HW_PARAM_FIRST_INTERVAL; k <= SNDRV_PCM_HW_PARAM_LAST_INTERVAL; k++) { snd_interval_any(constrs_interval(constrs, k)); } snd_interval_setinteger(constrs_interval(constrs, SNDRV_PCM_HW_PARAM_CHANNELS)); snd_interval_setinteger(constrs_interval(constrs, SNDRV_PCM_HW_PARAM_BUFFER_SIZE)); snd_interval_setinteger(constrs_interval(constrs, SNDRV_PCM_HW_PARAM_BUFFER_BYTES)); snd_interval_setinteger(constrs_interval(constrs, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)); snd_interval_setinteger(constrs_interval(constrs, SNDRV_PCM_HW_PARAM_FRAME_BITS)); err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, snd_pcm_hw_rule_format, NULL, SNDRV_PCM_HW_PARAM_SAMPLE_BITS, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_SAMPLE_BITS, snd_pcm_hw_rule_sample_bits, NULL, SNDRV_PCM_HW_PARAM_FORMAT, SNDRV_PCM_HW_PARAM_SAMPLE_BITS, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_SAMPLE_BITS, snd_pcm_hw_rule_div, NULL, SNDRV_PCM_HW_PARAM_FRAME_BITS, SNDRV_PCM_HW_PARAM_CHANNELS, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FRAME_BITS, snd_pcm_hw_rule_mul, NULL, SNDRV_PCM_HW_PARAM_SAMPLE_BITS, SNDRV_PCM_HW_PARAM_CHANNELS, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FRAME_BITS, snd_pcm_hw_rule_mulkdiv, (void*) 8, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FRAME_BITS, snd_pcm_hw_rule_mulkdiv, (void*) 8, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, snd_pcm_hw_rule_div, NULL, SNDRV_PCM_HW_PARAM_FRAME_BITS, SNDRV_PCM_HW_PARAM_SAMPLE_BITS, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, snd_pcm_hw_rule_mulkdiv, (void*) 1000000, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, SNDRV_PCM_HW_PARAM_PERIOD_TIME, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, snd_pcm_hw_rule_mulkdiv, (void*) 1000000, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, SNDRV_PCM_HW_PARAM_BUFFER_TIME, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS, snd_pcm_hw_rule_div, NULL, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, snd_pcm_hw_rule_div, NULL, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, SNDRV_PCM_HW_PARAM_PERIODS, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, snd_pcm_hw_rule_mulkdiv, (void*) 8, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, SNDRV_PCM_HW_PARAM_FRAME_BITS, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, snd_pcm_hw_rule_muldivk, (void*) 1000000, SNDRV_PCM_HW_PARAM_PERIOD_TIME, SNDRV_PCM_HW_PARAM_RATE, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, snd_pcm_hw_rule_mul, NULL, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, SNDRV_PCM_HW_PARAM_PERIODS, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, snd_pcm_hw_rule_mulkdiv, (void*) 8, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, SNDRV_PCM_HW_PARAM_FRAME_BITS, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, snd_pcm_hw_rule_muldivk, (void*) 1000000, SNDRV_PCM_HW_PARAM_BUFFER_TIME, SNDRV_PCM_HW_PARAM_RATE, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, snd_pcm_hw_rule_muldivk, (void*) 8, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, SNDRV_PCM_HW_PARAM_FRAME_BITS, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, snd_pcm_hw_rule_muldivk, (void*) 8, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, SNDRV_PCM_HW_PARAM_FRAME_BITS, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_TIME, snd_pcm_hw_rule_mulkdiv, (void*) 1000000, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, SNDRV_PCM_HW_PARAM_RATE, -1); if (err < 0) return err; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_TIME, snd_pcm_hw_rule_mulkdiv, (void*) 1000000, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, SNDRV_PCM_HW_PARAM_RATE, -1); if (err < 0) return err; return 0; } |
877211f5e [ALSA] Remove xxx... |
1830 |
int snd_pcm_hw_constraints_complete(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
1831 |
{ |
877211f5e [ALSA] Remove xxx... |
1832 1833 |
struct snd_pcm_runtime *runtime = substream->runtime; struct snd_pcm_hardware *hw = &runtime->hw; |
1da177e4c Linux-2.6.12-rc2 |
1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 |
int err; unsigned int mask = 0; if (hw->info & SNDRV_PCM_INFO_INTERLEAVED) mask |= 1 << SNDRV_PCM_ACCESS_RW_INTERLEAVED; if (hw->info & SNDRV_PCM_INFO_NONINTERLEAVED) mask |= 1 << SNDRV_PCM_ACCESS_RW_NONINTERLEAVED; if (hw->info & SNDRV_PCM_INFO_MMAP) { if (hw->info & SNDRV_PCM_INFO_INTERLEAVED) mask |= 1 << SNDRV_PCM_ACCESS_MMAP_INTERLEAVED; if (hw->info & SNDRV_PCM_INFO_NONINTERLEAVED) mask |= 1 << SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED; if (hw->info & SNDRV_PCM_INFO_COMPLEX) mask |= 1 << SNDRV_PCM_ACCESS_MMAP_COMPLEX; } err = snd_pcm_hw_constraint_mask(runtime, SNDRV_PCM_HW_PARAM_ACCESS, mask); |
7eaa943c8 ALSA: Kill snd_as... |
1850 1851 |
if (err < 0) return err; |
1da177e4c Linux-2.6.12-rc2 |
1852 1853 |
err = snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT, hw->formats); |
7eaa943c8 ALSA: Kill snd_as... |
1854 1855 |
if (err < 0) return err; |
1da177e4c Linux-2.6.12-rc2 |
1856 1857 |
err = snd_pcm_hw_constraint_mask(runtime, SNDRV_PCM_HW_PARAM_SUBFORMAT, 1 << SNDRV_PCM_SUBFORMAT_STD); |
7eaa943c8 ALSA: Kill snd_as... |
1858 1859 |
if (err < 0) return err; |
1da177e4c Linux-2.6.12-rc2 |
1860 1861 1862 |
err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, hw->channels_min, hw->channels_max); |
7eaa943c8 ALSA: Kill snd_as... |
1863 1864 |
if (err < 0) return err; |
1da177e4c Linux-2.6.12-rc2 |
1865 1866 1867 |
err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, hw->rate_min, hw->rate_max); |
8b90ca088 ALSA: Fix indenta... |
1868 1869 |
if (err < 0) return err; |
1da177e4c Linux-2.6.12-rc2 |
1870 1871 1872 |
err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, hw->period_bytes_min, hw->period_bytes_max); |
8b90ca088 ALSA: Fix indenta... |
1873 1874 |
if (err < 0) return err; |
1da177e4c Linux-2.6.12-rc2 |
1875 1876 1877 |
err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIODS, hw->periods_min, hw->periods_max); |
7eaa943c8 ALSA: Kill snd_as... |
1878 1879 |
if (err < 0) return err; |
1da177e4c Linux-2.6.12-rc2 |
1880 1881 1882 |
err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, hw->period_bytes_min, hw->buffer_bytes_max); |
7eaa943c8 ALSA: Kill snd_as... |
1883 1884 |
if (err < 0) return err; |
1da177e4c Linux-2.6.12-rc2 |
1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 |
err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, snd_pcm_hw_rule_buffer_bytes_max, substream, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, -1); if (err < 0) return err; /* FIXME: remove */ if (runtime->dma_bytes) { err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, runtime->dma_bytes); |
7eaa943c8 ALSA: Kill snd_as... |
1895 1896 |
if (err < 0) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 |
} if (!(hw->rates & (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))) { err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, snd_pcm_hw_rule_rate, hw, SNDRV_PCM_HW_PARAM_RATE, -1); if (err < 0) return err; } /* FIXME: this belong to lowlevel */ |
1da177e4c Linux-2.6.12-rc2 |
1908 1909 1910 1911 |
snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE); return 0; } |
3bf75f9b9 [ALSA] Clean up P... |
1912 |
static void pcm_release_private(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
1913 |
{ |
1da177e4c Linux-2.6.12-rc2 |
1914 |
snd_pcm_unlink(substream); |
3bf75f9b9 [ALSA] Clean up P... |
1915 1916 1917 1918 |
} void snd_pcm_release_substream(struct snd_pcm_substream *substream) { |
0df63e44c [ALSA] Add O_APPE... |
1919 1920 1921 |
substream->ref_count--; if (substream->ref_count > 0) return; |
3bf75f9b9 [ALSA] Clean up P... |
1922 |
snd_pcm_drop(substream); |
3bf75f9b9 [ALSA] Clean up P... |
1923 |
if (substream->hw_opened) { |
1da177e4c Linux-2.6.12-rc2 |
1924 1925 1926 |
if (substream->ops->hw_free != NULL) substream->ops->hw_free(substream); substream->ops->close(substream); |
3bf75f9b9 [ALSA] Clean up P... |
1927 |
substream->hw_opened = 0; |
1da177e4c Linux-2.6.12-rc2 |
1928 |
} |
8699a0b65 ALSA: pcm - Fix u... |
1929 1930 |
if (pm_qos_request_active(&substream->latency_pm_qos_req)) pm_qos_remove_request(&substream->latency_pm_qos_req); |
1576274d3 [ALSA] Fix Oops o... |
1931 1932 1933 1934 |
if (substream->pcm_release) { substream->pcm_release(substream); substream->pcm_release = NULL; } |
3bf75f9b9 [ALSA] Clean up P... |
1935 1936 |
snd_pcm_detach_substream(substream); } |
e88e8ae63 [ALSA] Move OSS-s... |
1937 |
EXPORT_SYMBOL(snd_pcm_release_substream); |
3bf75f9b9 [ALSA] Clean up P... |
1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 |
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; |
0df63e44c [ALSA] Add O_APPE... |
1948 1949 1950 1951 |
if (substream->ref_count > 1) { *rsubstream = substream; return 0; } |
3bf75f9b9 [ALSA] Clean up P... |
1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 |
err = snd_pcm_hw_constraints_init(substream); if (err < 0) { snd_printd("snd_pcm_hw_constraints_init failed "); 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 "); goto error; } *rsubstream = substream; |
1da177e4c Linux-2.6.12-rc2 |
1972 |
return 0; |
3bf75f9b9 [ALSA] Clean up P... |
1973 1974 1975 1976 |
error: snd_pcm_release_substream(substream); return err; |
1da177e4c Linux-2.6.12-rc2 |
1977 |
} |
e88e8ae63 [ALSA] Move OSS-s... |
1978 |
EXPORT_SYMBOL(snd_pcm_open_substream); |
1da177e4c Linux-2.6.12-rc2 |
1979 |
static int snd_pcm_open_file(struct file *file, |
877211f5e [ALSA] Remove xxx... |
1980 |
struct snd_pcm *pcm, |
ffd3d5c6c ALSA: pcm - remov... |
1981 |
int stream) |
1da177e4c Linux-2.6.12-rc2 |
1982 |
{ |
877211f5e [ALSA] Remove xxx... |
1983 1984 |
struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream; |
3bf75f9b9 [ALSA] Clean up P... |
1985 |
int err; |
1da177e4c Linux-2.6.12-rc2 |
1986 |
|
3bf75f9b9 [ALSA] Clean up P... |
1987 1988 1989 |
err = snd_pcm_open_substream(pcm, stream, file, &substream); if (err < 0) return err; |
548a648b9 [ALSA] Fix contro... |
1990 1991 1992 1993 1994 1995 1996 |
pcm_file = kzalloc(sizeof(*pcm_file), GFP_KERNEL); if (pcm_file == NULL) { snd_pcm_release_substream(substream); return -ENOMEM; } pcm_file->substream = substream; if (substream->ref_count == 1) { |
0df63e44c [ALSA] Add O_APPE... |
1997 1998 |
substream->file = pcm_file; substream->pcm_release = pcm_release_private; |
1da177e4c Linux-2.6.12-rc2 |
1999 |
} |
1da177e4c Linux-2.6.12-rc2 |
2000 |
file->private_data = pcm_file; |
ffd3d5c6c ALSA: pcm - remov... |
2001 |
|
1da177e4c Linux-2.6.12-rc2 |
2002 2003 |
return 0; } |
f87135f56 [ALSA] dynamic mi... |
2004 2005 2006 |
static int snd_pcm_playback_open(struct inode *inode, struct file *file) { struct snd_pcm *pcm; |
02f4865fa ALSA: core - Defi... |
2007 2008 2009 |
int err = nonseekable_open(inode, file); if (err < 0) return err; |
f87135f56 [ALSA] dynamic mi... |
2010 2011 2012 2013 2014 2015 |
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) |
1da177e4c Linux-2.6.12-rc2 |
2016 |
{ |
877211f5e [ALSA] Remove xxx... |
2017 |
struct snd_pcm *pcm; |
02f4865fa ALSA: core - Defi... |
2018 2019 2020 |
int err = nonseekable_open(inode, file); if (err < 0) return err; |
f87135f56 [ALSA] dynamic mi... |
2021 2022 2023 2024 2025 2026 2027 2028 |
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; |
1da177e4c Linux-2.6.12-rc2 |
2029 |
wait_queue_t wait; |
1da177e4c Linux-2.6.12-rc2 |
2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 |
if (pcm == NULL) { err = -ENODEV; goto __error1; } err = snd_card_file_add(pcm->card, file); if (err < 0) goto __error1; if (!try_module_get(pcm->card->module)) { err = -EFAULT; goto __error2; } init_waitqueue_entry(&wait, current); add_wait_queue(&pcm->open_wait, &wait); |
1a60d4c5a [ALSA] semaphore ... |
2043 |
mutex_lock(&pcm->open_mutex); |
1da177e4c Linux-2.6.12-rc2 |
2044 |
while (1) { |
ffd3d5c6c ALSA: pcm - remov... |
2045 |
err = snd_pcm_open_file(file, pcm, stream); |
1da177e4c Linux-2.6.12-rc2 |
2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 |
if (err >= 0) break; if (err == -EAGAIN) { if (file->f_flags & O_NONBLOCK) { err = -EBUSY; break; } } else break; set_current_state(TASK_INTERRUPTIBLE); |
1a60d4c5a [ALSA] semaphore ... |
2056 |
mutex_unlock(&pcm->open_mutex); |
1da177e4c Linux-2.6.12-rc2 |
2057 |
schedule(); |
1a60d4c5a [ALSA] semaphore ... |
2058 |
mutex_lock(&pcm->open_mutex); |
1da177e4c Linux-2.6.12-rc2 |
2059 2060 2061 2062 2063 2064 |
if (signal_pending(current)) { err = -ERESTARTSYS; break; } } remove_wait_queue(&pcm->open_wait, &wait); |
1a60d4c5a [ALSA] semaphore ... |
2065 |
mutex_unlock(&pcm->open_mutex); |
1da177e4c Linux-2.6.12-rc2 |
2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 |
if (err < 0) goto __error; return err; __error: module_put(pcm->card->module); __error2: snd_card_file_remove(pcm->card, file); __error1: return err; } static int snd_pcm_release(struct inode *inode, struct file *file) { |
877211f5e [ALSA] Remove xxx... |
2080 2081 2082 |
struct snd_pcm *pcm; struct snd_pcm_substream *substream; struct snd_pcm_file *pcm_file; |
1da177e4c Linux-2.6.12-rc2 |
2083 2084 2085 |
pcm_file = file->private_data; substream = pcm_file->substream; |
7eaa943c8 ALSA: Kill snd_as... |
2086 2087 |
if (snd_BUG_ON(!substream)) return -ENXIO; |
1da177e4c Linux-2.6.12-rc2 |
2088 |
pcm = substream->pcm; |
1a60d4c5a [ALSA] semaphore ... |
2089 |
mutex_lock(&pcm->open_mutex); |
3bf75f9b9 [ALSA] Clean up P... |
2090 |
snd_pcm_release_substream(substream); |
548a648b9 [ALSA] Fix contro... |
2091 |
kfree(pcm_file); |
1a60d4c5a [ALSA] semaphore ... |
2092 |
mutex_unlock(&pcm->open_mutex); |
1da177e4c Linux-2.6.12-rc2 |
2093 2094 2095 2096 2097 |
wake_up(&pcm->open_wait); module_put(pcm->card->module); snd_card_file_remove(pcm->card, file); return 0; } |
877211f5e [ALSA] Remove xxx... |
2098 2099 |
static snd_pcm_sframes_t snd_pcm_playback_rewind(struct snd_pcm_substream *substream, snd_pcm_uframes_t frames) |
1da177e4c Linux-2.6.12-rc2 |
2100 |
{ |
877211f5e [ALSA] Remove xxx... |
2101 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 |
snd_pcm_sframes_t appl_ptr; snd_pcm_sframes_t ret; snd_pcm_sframes_t hw_avail; if (frames == 0) return 0; snd_pcm_stream_lock_irq(substream); switch (runtime->status->state) { case SNDRV_PCM_STATE_PREPARED: break; case SNDRV_PCM_STATE_DRAINING: case SNDRV_PCM_STATE_RUNNING: if (snd_pcm_update_hw_ptr(substream) >= 0) break; /* Fall through */ case SNDRV_PCM_STATE_XRUN: ret = -EPIPE; goto __end; |
51840409b ALSA: pcm - Tell ... |
2121 2122 2123 |
case SNDRV_PCM_STATE_SUSPENDED: ret = -ESTRPIPE; goto __end; |
1da177e4c Linux-2.6.12-rc2 |
2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 |
default: ret = -EBADFD; goto __end; } hw_avail = snd_pcm_playback_hw_avail(runtime); if (hw_avail <= 0) { ret = 0; goto __end; } if (frames > (snd_pcm_uframes_t)hw_avail) frames = hw_avail; |
1da177e4c Linux-2.6.12-rc2 |
2136 2137 2138 2139 |
appl_ptr = runtime->control->appl_ptr - frames; if (appl_ptr < 0) appl_ptr += runtime->boundary; runtime->control->appl_ptr = appl_ptr; |
1da177e4c Linux-2.6.12-rc2 |
2140 2141 2142 2143 2144 |
ret = frames; __end: snd_pcm_stream_unlock_irq(substream); return ret; } |
877211f5e [ALSA] Remove xxx... |
2145 2146 |
static snd_pcm_sframes_t snd_pcm_capture_rewind(struct snd_pcm_substream *substream, snd_pcm_uframes_t frames) |
1da177e4c Linux-2.6.12-rc2 |
2147 |
{ |
877211f5e [ALSA] Remove xxx... |
2148 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 |
snd_pcm_sframes_t appl_ptr; snd_pcm_sframes_t ret; snd_pcm_sframes_t hw_avail; if (frames == 0) return 0; snd_pcm_stream_lock_irq(substream); switch (runtime->status->state) { case SNDRV_PCM_STATE_PREPARED: case SNDRV_PCM_STATE_DRAINING: break; case SNDRV_PCM_STATE_RUNNING: if (snd_pcm_update_hw_ptr(substream) >= 0) break; /* Fall through */ case SNDRV_PCM_STATE_XRUN: ret = -EPIPE; goto __end; |
51840409b ALSA: pcm - Tell ... |
2168 2169 2170 |
case SNDRV_PCM_STATE_SUSPENDED: ret = -ESTRPIPE; goto __end; |
1da177e4c Linux-2.6.12-rc2 |
2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 |
default: ret = -EBADFD; goto __end; } hw_avail = snd_pcm_capture_hw_avail(runtime); if (hw_avail <= 0) { ret = 0; goto __end; } if (frames > (snd_pcm_uframes_t)hw_avail) frames = hw_avail; |
1da177e4c Linux-2.6.12-rc2 |
2183 2184 2185 2186 |
appl_ptr = runtime->control->appl_ptr - frames; if (appl_ptr < 0) appl_ptr += runtime->boundary; runtime->control->appl_ptr = appl_ptr; |
1da177e4c Linux-2.6.12-rc2 |
2187 2188 2189 2190 2191 |
ret = frames; __end: snd_pcm_stream_unlock_irq(substream); return ret; } |
877211f5e [ALSA] Remove xxx... |
2192 2193 |
static snd_pcm_sframes_t snd_pcm_playback_forward(struct snd_pcm_substream *substream, snd_pcm_uframes_t frames) |
1da177e4c Linux-2.6.12-rc2 |
2194 |
{ |
877211f5e [ALSA] Remove xxx... |
2195 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 |
snd_pcm_sframes_t appl_ptr; snd_pcm_sframes_t ret; snd_pcm_sframes_t avail; if (frames == 0) return 0; snd_pcm_stream_lock_irq(substream); switch (runtime->status->state) { case SNDRV_PCM_STATE_PREPARED: case SNDRV_PCM_STATE_PAUSED: break; case SNDRV_PCM_STATE_DRAINING: case SNDRV_PCM_STATE_RUNNING: if (snd_pcm_update_hw_ptr(substream) >= 0) break; /* Fall through */ case SNDRV_PCM_STATE_XRUN: ret = -EPIPE; goto __end; |
51840409b ALSA: pcm - Tell ... |
2216 2217 2218 |
case SNDRV_PCM_STATE_SUSPENDED: ret = -ESTRPIPE; goto __end; |
1da177e4c Linux-2.6.12-rc2 |
2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 |
default: ret = -EBADFD; goto __end; } avail = snd_pcm_playback_avail(runtime); if (avail <= 0) { ret = 0; goto __end; } if (frames > (snd_pcm_uframes_t)avail) frames = avail; |
1da177e4c Linux-2.6.12-rc2 |
2231 2232 2233 2234 |
appl_ptr = runtime->control->appl_ptr + frames; if (appl_ptr >= (snd_pcm_sframes_t)runtime->boundary) appl_ptr -= runtime->boundary; runtime->control->appl_ptr = appl_ptr; |
1da177e4c Linux-2.6.12-rc2 |
2235 2236 2237 2238 2239 |
ret = frames; __end: snd_pcm_stream_unlock_irq(substream); return ret; } |
877211f5e [ALSA] Remove xxx... |
2240 2241 |
static snd_pcm_sframes_t snd_pcm_capture_forward(struct snd_pcm_substream *substream, snd_pcm_uframes_t frames) |
1da177e4c Linux-2.6.12-rc2 |
2242 |
{ |
877211f5e [ALSA] Remove xxx... |
2243 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 |
snd_pcm_sframes_t appl_ptr; snd_pcm_sframes_t ret; snd_pcm_sframes_t avail; if (frames == 0) return 0; snd_pcm_stream_lock_irq(substream); switch (runtime->status->state) { case SNDRV_PCM_STATE_PREPARED: case SNDRV_PCM_STATE_DRAINING: case SNDRV_PCM_STATE_PAUSED: break; case SNDRV_PCM_STATE_RUNNING: if (snd_pcm_update_hw_ptr(substream) >= 0) break; /* Fall through */ case SNDRV_PCM_STATE_XRUN: ret = -EPIPE; goto __end; |
51840409b ALSA: pcm - Tell ... |
2264 2265 2266 |
case SNDRV_PCM_STATE_SUSPENDED: ret = -ESTRPIPE; goto __end; |
1da177e4c Linux-2.6.12-rc2 |
2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 |
default: ret = -EBADFD; goto __end; } avail = snd_pcm_capture_avail(runtime); if (avail <= 0) { ret = 0; goto __end; } if (frames > (snd_pcm_uframes_t)avail) frames = avail; |
1da177e4c Linux-2.6.12-rc2 |
2279 2280 2281 2282 |
appl_ptr = runtime->control->appl_ptr + frames; if (appl_ptr >= (snd_pcm_sframes_t)runtime->boundary) appl_ptr -= runtime->boundary; runtime->control->appl_ptr = appl_ptr; |
1da177e4c Linux-2.6.12-rc2 |
2283 2284 2285 2286 2287 |
ret = frames; __end: snd_pcm_stream_unlock_irq(substream); return ret; } |
877211f5e [ALSA] Remove xxx... |
2288 |
static int snd_pcm_hwsync(struct snd_pcm_substream *substream) |
1da177e4c Linux-2.6.12-rc2 |
2289 |
{ |
877211f5e [ALSA] Remove xxx... |
2290 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 |
int err; snd_pcm_stream_lock_irq(substream); switch (runtime->status->state) { case SNDRV_PCM_STATE_DRAINING: if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) goto __badfd; case SNDRV_PCM_STATE_RUNNING: if ((err = snd_pcm_update_hw_ptr(substream)) < 0) break; /* Fall through */ case SNDRV_PCM_STATE_PREPARED: case SNDRV_PCM_STATE_SUSPENDED: err = 0; break; case SNDRV_PCM_STATE_XRUN: err = -EPIPE; break; default: __badfd: err = -EBADFD; break; } snd_pcm_stream_unlock_irq(substream); return err; } |
877211f5e [ALSA] Remove xxx... |
2318 2319 |
static int snd_pcm_delay(struct snd_pcm_substream *substream, snd_pcm_sframes_t __user *res) |
1da177e4c Linux-2.6.12-rc2 |
2320 |
{ |
877211f5e [ALSA] Remove xxx... |
2321 |
struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 |
int err; snd_pcm_sframes_t n = 0; snd_pcm_stream_lock_irq(substream); switch (runtime->status->state) { case SNDRV_PCM_STATE_DRAINING: if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) goto __badfd; case SNDRV_PCM_STATE_RUNNING: if ((err = snd_pcm_update_hw_ptr(substream)) < 0) break; /* Fall through */ case SNDRV_PCM_STATE_PREPARED: case SNDRV_PCM_STATE_SUSPENDED: err = 0; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) n = snd_pcm_playback_hw_avail(runtime); else n = snd_pcm_capture_avail(runtime); |
4bbe1ddf8 ALSA: Add extra d... |
2341 |
n += runtime->delay; |
1da177e4c Linux-2.6.12-rc2 |
2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 |
break; case SNDRV_PCM_STATE_XRUN: err = -EPIPE; break; default: __badfd: err = -EBADFD; break; } snd_pcm_stream_unlock_irq(substream); if (!err) if (put_user(n, res)) err = -EFAULT; return err; } |
877211f5e [ALSA] Remove xxx... |
2358 2359 |
static int snd_pcm_sync_ptr(struct snd_pcm_substream *substream, struct snd_pcm_sync_ptr __user *_sync_ptr) |
1da177e4c Linux-2.6.12-rc2 |
2360 |
{ |
877211f5e [ALSA] Remove xxx... |
2361 2362 2363 2364 |
struct snd_pcm_runtime *runtime = substream->runtime; struct snd_pcm_sync_ptr sync_ptr; volatile struct snd_pcm_mmap_status *status; volatile struct snd_pcm_mmap_control *control; |
1da177e4c Linux-2.6.12-rc2 |
2365 2366 2367 2368 2369 |
int err; memset(&sync_ptr, 0, sizeof(sync_ptr)); if (get_user(sync_ptr.flags, (unsigned __user *)&(_sync_ptr->flags))) return -EFAULT; |
877211f5e [ALSA] Remove xxx... |
2370 |
if (copy_from_user(&sync_ptr.c.control, &(_sync_ptr->c.control), sizeof(struct snd_pcm_mmap_control))) |
1da177e4c Linux-2.6.12-rc2 |
2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 |
return -EFAULT; status = runtime->status; control = runtime->control; if (sync_ptr.flags & SNDRV_PCM_SYNC_PTR_HWSYNC) { err = snd_pcm_hwsync(substream); if (err < 0) return err; } snd_pcm_stream_lock_irq(substream); if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_APPL)) control->appl_ptr = sync_ptr.c.control.appl_ptr; else sync_ptr.c.control.appl_ptr = control->appl_ptr; if (!(sync_ptr.flags & SNDRV_PCM_SYNC_PTR_AVAIL_MIN)) control->avail_min = sync_ptr.c.control.avail_min; else sync_ptr.c.control.avail_min = control->avail_min; sync_ptr.s.status.state = status->state; sync_ptr.s.status.hw_ptr = status->hw_ptr; sync_ptr.s.status.tstamp = status->tstamp; sync_ptr.s.status.suspended_state = status->suspended_state; snd_pcm_stream_unlock_irq(substream); if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr))) return -EFAULT; return 0; } |
b751eef1f [ALSA] Use posix ... |
2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 |
static int snd_pcm_tstamp(struct snd_pcm_substream *substream, int __user *_arg) { struct snd_pcm_runtime *runtime = substream->runtime; int arg; if (get_user(arg, _arg)) return -EFAULT; if (arg < 0 || arg > SNDRV_PCM_TSTAMP_TYPE_LAST) return -EINVAL; runtime->tstamp_type = SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY; if (arg == SNDRV_PCM_TSTAMP_TYPE_MONOTONIC) runtime->tstamp_type = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC; return 0; } |
1da177e4c Linux-2.6.12-rc2 |
2412 |
|
0df63e44c [ALSA] Add O_APPE... |
2413 2414 |
static int snd_pcm_common_ioctl1(struct file *file, struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
2415 2416 |
unsigned int cmd, void __user *arg) { |
1da177e4c Linux-2.6.12-rc2 |
2417 2418 2419 2420 2421 |
switch (cmd) { case SNDRV_PCM_IOCTL_PVERSION: return put_user(SNDRV_PCM_VERSION, (int __user *)arg) ? -EFAULT : 0; case SNDRV_PCM_IOCTL_INFO: return snd_pcm_info_user(substream, arg); |
28e9e4738 [ALSA] PCM - adde... |
2422 2423 |
case SNDRV_PCM_IOCTL_TSTAMP: /* just for compatibility */ return 0; |
b751eef1f [ALSA] Use posix ... |
2424 2425 |
case SNDRV_PCM_IOCTL_TTSTAMP: return snd_pcm_tstamp(substream, arg); |
1da177e4c Linux-2.6.12-rc2 |
2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 |
case SNDRV_PCM_IOCTL_HW_REFINE: return snd_pcm_hw_refine_user(substream, arg); case SNDRV_PCM_IOCTL_HW_PARAMS: return snd_pcm_hw_params_user(substream, arg); case SNDRV_PCM_IOCTL_HW_FREE: return snd_pcm_hw_free(substream); case SNDRV_PCM_IOCTL_SW_PARAMS: return snd_pcm_sw_params_user(substream, arg); case SNDRV_PCM_IOCTL_STATUS: return snd_pcm_status_user(substream, arg); case SNDRV_PCM_IOCTL_CHANNEL_INFO: return snd_pcm_channel_info_user(substream, arg); case SNDRV_PCM_IOCTL_PREPARE: |
0df63e44c [ALSA] Add O_APPE... |
2439 |
return snd_pcm_prepare(substream, file); |
1da177e4c Linux-2.6.12-rc2 |
2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 |
case SNDRV_PCM_IOCTL_RESET: return snd_pcm_reset(substream); case SNDRV_PCM_IOCTL_START: return snd_pcm_action_lock_irq(&snd_pcm_action_start, substream, SNDRV_PCM_STATE_RUNNING); case SNDRV_PCM_IOCTL_LINK: return snd_pcm_link(substream, (int)(unsigned long) arg); case SNDRV_PCM_IOCTL_UNLINK: return snd_pcm_unlink(substream); case SNDRV_PCM_IOCTL_RESUME: return snd_pcm_resume(substream); case SNDRV_PCM_IOCTL_XRUN: return snd_pcm_xrun(substream); case SNDRV_PCM_IOCTL_HWSYNC: return snd_pcm_hwsync(substream); case SNDRV_PCM_IOCTL_DELAY: return snd_pcm_delay(substream, arg); case SNDRV_PCM_IOCTL_SYNC_PTR: return snd_pcm_sync_ptr(substream, arg); |
59d485825 [ALSA] pcm - Make... |
2458 |
#ifdef CONFIG_SND_SUPPORT_OLD_API |
1da177e4c Linux-2.6.12-rc2 |
2459 2460 2461 2462 |
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); |
59d485825 [ALSA] pcm - Make... |
2463 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
2464 |
case SNDRV_PCM_IOCTL_DRAIN: |
4cdc115fd ALSA: pcm - Fix d... |
2465 |
return snd_pcm_drain(substream, file); |
1da177e4c Linux-2.6.12-rc2 |
2466 2467 |
case SNDRV_PCM_IOCTL_DROP: return snd_pcm_drop(substream); |
e661d0ddc [ALSA] pcm - Move... |
2468 2469 2470 2471 2472 2473 2474 2475 |
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; } |
1da177e4c Linux-2.6.12-rc2 |
2476 2477 2478 2479 2480 |
} snd_printd("unknown ioctl = 0x%x ", cmd); return -ENOTTY; } |
0df63e44c [ALSA] Add O_APPE... |
2481 2482 |
static int snd_pcm_playback_ioctl1(struct file *file, struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
2483 2484 |
unsigned int cmd, void __user *arg) { |
7eaa943c8 ALSA: Kill snd_as... |
2485 2486 2487 2488 |
if (snd_BUG_ON(!substream)) return -ENXIO; if (snd_BUG_ON(substream->stream != SNDRV_PCM_STREAM_PLAYBACK)) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2489 2490 2491 |
switch (cmd) { case SNDRV_PCM_IOCTL_WRITEI_FRAMES: { |
877211f5e [ALSA] Remove xxx... |
2492 2493 2494 |
struct snd_xferi xferi; struct snd_xferi __user *_xferi = arg; struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 |
snd_pcm_sframes_t result; if (runtime->status->state == SNDRV_PCM_STATE_OPEN) return -EBADFD; if (put_user(0, &_xferi->result)) return -EFAULT; if (copy_from_user(&xferi, _xferi, sizeof(xferi))) return -EFAULT; result = snd_pcm_lib_write(substream, xferi.buf, xferi.frames); __put_user(result, &_xferi->result); return result < 0 ? result : 0; } case SNDRV_PCM_IOCTL_WRITEN_FRAMES: { |
877211f5e [ALSA] Remove xxx... |
2508 2509 2510 |
struct snd_xfern xfern; struct snd_xfern __user *_xfern = arg; struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 |
void __user **bufs; snd_pcm_sframes_t result; if (runtime->status->state == SNDRV_PCM_STATE_OPEN) return -EBADFD; if (runtime->channels > 128) return -EINVAL; if (put_user(0, &_xfern->result)) return -EFAULT; if (copy_from_user(&xfern, _xfern, sizeof(xfern))) return -EFAULT; |
ef44a1ec6 ALSA: sound/core:... |
2521 2522 2523 2524 2525 |
bufs = memdup_user(xfern.bufs, sizeof(void *) * runtime->channels); if (IS_ERR(bufs)) return PTR_ERR(bufs); |
1da177e4c Linux-2.6.12-rc2 |
2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 |
result = snd_pcm_lib_writev(substream, bufs, xfern.frames); kfree(bufs); __put_user(result, &_xfern->result); return result < 0 ? result : 0; } case SNDRV_PCM_IOCTL_REWIND: { snd_pcm_uframes_t frames; snd_pcm_uframes_t __user *_frames = arg; snd_pcm_sframes_t result; if (get_user(frames, _frames)) return -EFAULT; if (put_user(0, _frames)) return -EFAULT; result = snd_pcm_playback_rewind(substream, frames); __put_user(result, _frames); return result < 0 ? result : 0; } case SNDRV_PCM_IOCTL_FORWARD: { snd_pcm_uframes_t frames; snd_pcm_uframes_t __user *_frames = arg; snd_pcm_sframes_t result; if (get_user(frames, _frames)) return -EFAULT; if (put_user(0, _frames)) return -EFAULT; result = snd_pcm_playback_forward(substream, frames); __put_user(result, _frames); return result < 0 ? result : 0; } |
1da177e4c Linux-2.6.12-rc2 |
2557 |
} |
0df63e44c [ALSA] Add O_APPE... |
2558 |
return snd_pcm_common_ioctl1(file, substream, cmd, arg); |
1da177e4c Linux-2.6.12-rc2 |
2559 |
} |
0df63e44c [ALSA] Add O_APPE... |
2560 2561 |
static int snd_pcm_capture_ioctl1(struct file *file, struct snd_pcm_substream *substream, |
1da177e4c Linux-2.6.12-rc2 |
2562 2563 |
unsigned int cmd, void __user *arg) { |
7eaa943c8 ALSA: Kill snd_as... |
2564 2565 2566 2567 |
if (snd_BUG_ON(!substream)) return -ENXIO; if (snd_BUG_ON(substream->stream != SNDRV_PCM_STREAM_CAPTURE)) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2568 2569 2570 |
switch (cmd) { case SNDRV_PCM_IOCTL_READI_FRAMES: { |
877211f5e [ALSA] Remove xxx... |
2571 2572 2573 |
struct snd_xferi xferi; struct snd_xferi __user *_xferi = arg; struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 |
snd_pcm_sframes_t result; if (runtime->status->state == SNDRV_PCM_STATE_OPEN) return -EBADFD; if (put_user(0, &_xferi->result)) return -EFAULT; if (copy_from_user(&xferi, _xferi, sizeof(xferi))) return -EFAULT; result = snd_pcm_lib_read(substream, xferi.buf, xferi.frames); __put_user(result, &_xferi->result); return result < 0 ? result : 0; } case SNDRV_PCM_IOCTL_READN_FRAMES: { |
877211f5e [ALSA] Remove xxx... |
2587 2588 2589 |
struct snd_xfern xfern; struct snd_xfern __user *_xfern = arg; struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 |
void *bufs; snd_pcm_sframes_t result; if (runtime->status->state == SNDRV_PCM_STATE_OPEN) return -EBADFD; if (runtime->channels > 128) return -EINVAL; if (put_user(0, &_xfern->result)) return -EFAULT; if (copy_from_user(&xfern, _xfern, sizeof(xfern))) return -EFAULT; |
ef44a1ec6 ALSA: sound/core:... |
2600 2601 2602 2603 2604 |
bufs = memdup_user(xfern.bufs, sizeof(void *) * runtime->channels); if (IS_ERR(bufs)) return PTR_ERR(bufs); |
1da177e4c Linux-2.6.12-rc2 |
2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 |
result = snd_pcm_lib_readv(substream, bufs, xfern.frames); kfree(bufs); __put_user(result, &_xfern->result); return result < 0 ? result : 0; } case SNDRV_PCM_IOCTL_REWIND: { snd_pcm_uframes_t frames; snd_pcm_uframes_t __user *_frames = arg; snd_pcm_sframes_t result; if (get_user(frames, _frames)) return -EFAULT; if (put_user(0, _frames)) return -EFAULT; result = snd_pcm_capture_rewind(substream, frames); __put_user(result, _frames); return result < 0 ? result : 0; } case SNDRV_PCM_IOCTL_FORWARD: { snd_pcm_uframes_t frames; snd_pcm_uframes_t __user *_frames = arg; snd_pcm_sframes_t result; if (get_user(frames, _frames)) return -EFAULT; if (put_user(0, _frames)) return -EFAULT; result = snd_pcm_capture_forward(substream, frames); __put_user(result, _frames); return result < 0 ? result : 0; } } |
0df63e44c [ALSA] Add O_APPE... |
2637 |
return snd_pcm_common_ioctl1(file, substream, cmd, arg); |
1da177e4c Linux-2.6.12-rc2 |
2638 |
} |
877211f5e [ALSA] Remove xxx... |
2639 2640 |
static long snd_pcm_playback_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
1da177e4c Linux-2.6.12-rc2 |
2641 |
{ |
877211f5e [ALSA] Remove xxx... |
2642 |
struct snd_pcm_file *pcm_file; |
1da177e4c Linux-2.6.12-rc2 |
2643 2644 2645 2646 2647 |
pcm_file = file->private_data; if (((cmd >> 8) & 0xff) != 'A') return -ENOTTY; |
0df63e44c [ALSA] Add O_APPE... |
2648 2649 |
return snd_pcm_playback_ioctl1(file, pcm_file->substream, cmd, (void __user *)arg); |
1da177e4c Linux-2.6.12-rc2 |
2650 |
} |
877211f5e [ALSA] Remove xxx... |
2651 2652 |
static long snd_pcm_capture_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
1da177e4c Linux-2.6.12-rc2 |
2653 |
{ |
877211f5e [ALSA] Remove xxx... |
2654 |
struct snd_pcm_file *pcm_file; |
1da177e4c Linux-2.6.12-rc2 |
2655 2656 2657 2658 2659 |
pcm_file = file->private_data; if (((cmd >> 8) & 0xff) != 'A') return -ENOTTY; |
0df63e44c [ALSA] Add O_APPE... |
2660 2661 |
return snd_pcm_capture_ioctl1(file, pcm_file->substream, cmd, (void __user *)arg); |
1da177e4c Linux-2.6.12-rc2 |
2662 |
} |
bf1bbb5a4 [ALSA] Tiny clean... |
2663 2664 |
int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg) |
1da177e4c Linux-2.6.12-rc2 |
2665 2666 2667 2668 2669 |
{ mm_segment_t fs; int result; fs = snd_enter_user(); |
1da177e4c Linux-2.6.12-rc2 |
2670 2671 |
switch (substream->stream) { case SNDRV_PCM_STREAM_PLAYBACK: |
0df63e44c [ALSA] Add O_APPE... |
2672 2673 |
result = snd_pcm_playback_ioctl1(NULL, substream, cmd, (void __user *)arg); |
bf1bbb5a4 [ALSA] Tiny clean... |
2674 |
break; |
1da177e4c Linux-2.6.12-rc2 |
2675 |
case SNDRV_PCM_STREAM_CAPTURE: |
0df63e44c [ALSA] Add O_APPE... |
2676 2677 |
result = snd_pcm_capture_ioctl1(NULL, substream, cmd, (void __user *)arg); |
bf1bbb5a4 [ALSA] Tiny clean... |
2678 |
break; |
1da177e4c Linux-2.6.12-rc2 |
2679 |
default: |
bf1bbb5a4 [ALSA] Tiny clean... |
2680 2681 |
result = -EINVAL; break; |
1da177e4c Linux-2.6.12-rc2 |
2682 |
} |
bf1bbb5a4 [ALSA] Tiny clean... |
2683 2684 |
snd_leave_user(fs); return result; |
1da177e4c Linux-2.6.12-rc2 |
2685 |
} |
e88e8ae63 [ALSA] Move OSS-s... |
2686 |
EXPORT_SYMBOL(snd_pcm_kernel_ioctl); |
877211f5e [ALSA] Remove xxx... |
2687 2688 |
static ssize_t snd_pcm_read(struct file *file, char __user *buf, size_t count, loff_t * offset) |
1da177e4c Linux-2.6.12-rc2 |
2689 |
{ |
877211f5e [ALSA] Remove xxx... |
2690 2691 2692 |
struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
2693 2694 2695 2696 |
snd_pcm_sframes_t result; pcm_file = file->private_data; substream = pcm_file->substream; |
7eaa943c8 ALSA: Kill snd_as... |
2697 2698 |
if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; |
1da177e4c Linux-2.6.12-rc2 |
2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 |
runtime = substream->runtime; if (runtime->status->state == SNDRV_PCM_STATE_OPEN) return -EBADFD; if (!frame_aligned(runtime, count)) return -EINVAL; count = bytes_to_frames(runtime, count); result = snd_pcm_lib_read(substream, buf, count); if (result > 0) result = frames_to_bytes(runtime, result); return result; } |
877211f5e [ALSA] Remove xxx... |
2710 2711 |
static ssize_t snd_pcm_write(struct file *file, const char __user *buf, size_t count, loff_t * offset) |
1da177e4c Linux-2.6.12-rc2 |
2712 |
{ |
877211f5e [ALSA] Remove xxx... |
2713 2714 2715 |
struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
2716 2717 2718 2719 |
snd_pcm_sframes_t result; pcm_file = file->private_data; substream = pcm_file->substream; |
7eaa943c8 ALSA: Kill snd_as... |
2720 2721 |
if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; |
1da177e4c Linux-2.6.12-rc2 |
2722 |
runtime = substream->runtime; |
7eaa943c8 ALSA: Kill snd_as... |
2723 2724 2725 2726 |
if (runtime->status->state == SNDRV_PCM_STATE_OPEN) return -EBADFD; if (!frame_aligned(runtime, count)) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2727 2728 2729 2730 |
count = bytes_to_frames(runtime, count); result = snd_pcm_lib_write(substream, buf, count); if (result > 0) result = frames_to_bytes(runtime, result); |
1da177e4c Linux-2.6.12-rc2 |
2731 2732 |
return result; } |
ee0b3e671 [PATCH] Remove re... |
2733 2734 |
static ssize_t snd_pcm_aio_read(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos) |
1da177e4c Linux-2.6.12-rc2 |
2735 2736 |
{ |
877211f5e [ALSA] Remove xxx... |
2737 2738 2739 |
struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
2740 2741 2742 2743 |
snd_pcm_sframes_t result; unsigned long i; void __user **bufs; snd_pcm_uframes_t frames; |
ee0b3e671 [PATCH] Remove re... |
2744 |
pcm_file = iocb->ki_filp->private_data; |
1da177e4c Linux-2.6.12-rc2 |
2745 |
substream = pcm_file->substream; |
7eaa943c8 ALSA: Kill snd_as... |
2746 2747 |
if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; |
1da177e4c Linux-2.6.12-rc2 |
2748 2749 2750 |
runtime = substream->runtime; if (runtime->status->state == SNDRV_PCM_STATE_OPEN) return -EBADFD; |
ee0b3e671 [PATCH] Remove re... |
2751 |
if (nr_segs > 1024 || nr_segs != runtime->channels) |
1da177e4c Linux-2.6.12-rc2 |
2752 |
return -EINVAL; |
ee0b3e671 [PATCH] Remove re... |
2753 |
if (!frame_aligned(runtime, iov->iov_len)) |
1da177e4c Linux-2.6.12-rc2 |
2754 |
return -EINVAL; |
ee0b3e671 [PATCH] Remove re... |
2755 2756 |
frames = bytes_to_samples(runtime, iov->iov_len); bufs = kmalloc(sizeof(void *) * nr_segs, GFP_KERNEL); |
1da177e4c Linux-2.6.12-rc2 |
2757 2758 |
if (bufs == NULL) return -ENOMEM; |
ee0b3e671 [PATCH] Remove re... |
2759 2760 |
for (i = 0; i < nr_segs; ++i) bufs[i] = iov[i].iov_base; |
1da177e4c Linux-2.6.12-rc2 |
2761 2762 2763 2764 2765 2766 |
result = snd_pcm_lib_readv(substream, bufs, frames); if (result > 0) result = frames_to_bytes(runtime, result); kfree(bufs); return result; } |
ee0b3e671 [PATCH] Remove re... |
2767 2768 |
static ssize_t snd_pcm_aio_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos) |
1da177e4c Linux-2.6.12-rc2 |
2769 |
{ |
877211f5e [ALSA] Remove xxx... |
2770 2771 2772 |
struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
2773 2774 2775 2776 |
snd_pcm_sframes_t result; unsigned long i; void __user **bufs; snd_pcm_uframes_t frames; |
ee0b3e671 [PATCH] Remove re... |
2777 |
pcm_file = iocb->ki_filp->private_data; |
1da177e4c Linux-2.6.12-rc2 |
2778 |
substream = pcm_file->substream; |
7eaa943c8 ALSA: Kill snd_as... |
2779 2780 |
if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; |
1da177e4c Linux-2.6.12-rc2 |
2781 |
runtime = substream->runtime; |
7eaa943c8 ALSA: Kill snd_as... |
2782 2783 |
if (runtime->status->state == SNDRV_PCM_STATE_OPEN) return -EBADFD; |
ee0b3e671 [PATCH] Remove re... |
2784 |
if (nr_segs > 128 || nr_segs != runtime->channels || |
7eaa943c8 ALSA: Kill snd_as... |
2785 2786 |
!frame_aligned(runtime, iov->iov_len)) return -EINVAL; |
ee0b3e671 [PATCH] Remove re... |
2787 2788 |
frames = bytes_to_samples(runtime, iov->iov_len); bufs = kmalloc(sizeof(void *) * nr_segs, GFP_KERNEL); |
1da177e4c Linux-2.6.12-rc2 |
2789 2790 |
if (bufs == NULL) return -ENOMEM; |
ee0b3e671 [PATCH] Remove re... |
2791 2792 |
for (i = 0; i < nr_segs; ++i) bufs[i] = iov[i].iov_base; |
1da177e4c Linux-2.6.12-rc2 |
2793 2794 2795 2796 |
result = snd_pcm_lib_writev(substream, bufs, frames); if (result > 0) result = frames_to_bytes(runtime, result); kfree(bufs); |
1da177e4c Linux-2.6.12-rc2 |
2797 2798 2799 2800 2801 |
return result; } static unsigned int snd_pcm_playback_poll(struct file *file, poll_table * wait) { |
877211f5e [ALSA] Remove xxx... |
2802 2803 2804 |
struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
2805 2806 2807 2808 2809 2810 |
unsigned int mask; snd_pcm_uframes_t avail; pcm_file = file->private_data; substream = pcm_file->substream; |
7eaa943c8 ALSA: Kill snd_as... |
2811 2812 |
if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; |
1da177e4c Linux-2.6.12-rc2 |
2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 |
runtime = substream->runtime; poll_wait(file, &runtime->sleep, wait); snd_pcm_stream_lock_irq(substream); avail = snd_pcm_playback_avail(runtime); switch (runtime->status->state) { case SNDRV_PCM_STATE_RUNNING: case SNDRV_PCM_STATE_PREPARED: case SNDRV_PCM_STATE_PAUSED: if (avail >= runtime->control->avail_min) { mask = POLLOUT | POLLWRNORM; break; } /* Fall through */ case SNDRV_PCM_STATE_DRAINING: mask = 0; break; default: mask = POLLOUT | POLLWRNORM | POLLERR; break; } snd_pcm_stream_unlock_irq(substream); return mask; } static unsigned int snd_pcm_capture_poll(struct file *file, poll_table * wait) { |
877211f5e [ALSA] Remove xxx... |
2841 2842 2843 |
struct snd_pcm_file *pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
2844 2845 2846 2847 2848 2849 |
unsigned int mask; snd_pcm_uframes_t avail; pcm_file = file->private_data; substream = pcm_file->substream; |
7eaa943c8 ALSA: Kill snd_as... |
2850 2851 |
if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; |
1da177e4c Linux-2.6.12-rc2 |
2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 |
runtime = substream->runtime; poll_wait(file, &runtime->sleep, wait); snd_pcm_stream_lock_irq(substream); avail = snd_pcm_capture_avail(runtime); switch (runtime->status->state) { case SNDRV_PCM_STATE_RUNNING: case SNDRV_PCM_STATE_PREPARED: case SNDRV_PCM_STATE_PAUSED: if (avail >= runtime->control->avail_min) { mask = POLLIN | POLLRDNORM; break; } mask = 0; break; case SNDRV_PCM_STATE_DRAINING: if (avail > 0) { mask = POLLIN | POLLRDNORM; break; } /* Fall through */ default: mask = POLLIN | POLLRDNORM | POLLERR; break; } snd_pcm_stream_unlock_irq(substream); return mask; } /* * mmap support */ /* * Only on coherent architectures, we can mmap the status and the control records * for effcient data transfer. On others, we have to use HWSYNC ioctl... */ #if defined(CONFIG_X86) || defined(CONFIG_PPC) || defined(CONFIG_ALPHA) /* * mmap status record */ |
3ad5afcd5 [ALSA] alsa: nopage |
2894 2895 |
static int snd_pcm_mmap_status_fault(struct vm_area_struct *area, struct vm_fault *vmf) |
1da177e4c Linux-2.6.12-rc2 |
2896 |
{ |
877211f5e [ALSA] Remove xxx... |
2897 2898 |
struct snd_pcm_substream *substream = area->vm_private_data; struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
2899 2900 |
if (substream == NULL) |
3ad5afcd5 [ALSA] alsa: nopage |
2901 |
return VM_FAULT_SIGBUS; |
1da177e4c Linux-2.6.12-rc2 |
2902 |
runtime = substream->runtime; |
3ad5afcd5 [ALSA] alsa: nopage |
2903 2904 2905 |
vmf->page = virt_to_page(runtime->status); get_page(vmf->page); return 0; |
1da177e4c Linux-2.6.12-rc2 |
2906 |
} |
f0f37e2f7 const: mark struc... |
2907 |
static const struct vm_operations_struct snd_pcm_vm_ops_status = |
1da177e4c Linux-2.6.12-rc2 |
2908 |
{ |
3ad5afcd5 [ALSA] alsa: nopage |
2909 |
.fault = snd_pcm_mmap_status_fault, |
1da177e4c Linux-2.6.12-rc2 |
2910 |
}; |
877211f5e [ALSA] Remove xxx... |
2911 |
static int snd_pcm_mmap_status(struct snd_pcm_substream *substream, struct file *file, |
1da177e4c Linux-2.6.12-rc2 |
2912 2913 |
struct vm_area_struct *area) { |
1da177e4c Linux-2.6.12-rc2 |
2914 2915 2916 |
long size; if (!(area->vm_flags & VM_READ)) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2917 |
size = area->vm_end - area->vm_start; |
877211f5e [ALSA] Remove xxx... |
2918 |
if (size != PAGE_ALIGN(sizeof(struct snd_pcm_mmap_status))) |
1da177e4c Linux-2.6.12-rc2 |
2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 |
return -EINVAL; area->vm_ops = &snd_pcm_vm_ops_status; area->vm_private_data = substream; area->vm_flags |= VM_RESERVED; return 0; } /* * mmap control record */ |
3ad5afcd5 [ALSA] alsa: nopage |
2929 2930 |
static int snd_pcm_mmap_control_fault(struct vm_area_struct *area, struct vm_fault *vmf) |
1da177e4c Linux-2.6.12-rc2 |
2931 |
{ |
877211f5e [ALSA] Remove xxx... |
2932 2933 |
struct snd_pcm_substream *substream = area->vm_private_data; struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
2934 2935 |
if (substream == NULL) |
3ad5afcd5 [ALSA] alsa: nopage |
2936 |
return VM_FAULT_SIGBUS; |
1da177e4c Linux-2.6.12-rc2 |
2937 |
runtime = substream->runtime; |
3ad5afcd5 [ALSA] alsa: nopage |
2938 2939 2940 |
vmf->page = virt_to_page(runtime->control); get_page(vmf->page); return 0; |
1da177e4c Linux-2.6.12-rc2 |
2941 |
} |
f0f37e2f7 const: mark struc... |
2942 |
static const struct vm_operations_struct snd_pcm_vm_ops_control = |
1da177e4c Linux-2.6.12-rc2 |
2943 |
{ |
3ad5afcd5 [ALSA] alsa: nopage |
2944 |
.fault = snd_pcm_mmap_control_fault, |
1da177e4c Linux-2.6.12-rc2 |
2945 |
}; |
877211f5e [ALSA] Remove xxx... |
2946 |
static int snd_pcm_mmap_control(struct snd_pcm_substream *substream, struct file *file, |
1da177e4c Linux-2.6.12-rc2 |
2947 2948 |
struct vm_area_struct *area) { |
1da177e4c Linux-2.6.12-rc2 |
2949 2950 2951 |
long size; if (!(area->vm_flags & VM_READ)) return -EINVAL; |
1da177e4c Linux-2.6.12-rc2 |
2952 |
size = area->vm_end - area->vm_start; |
877211f5e [ALSA] Remove xxx... |
2953 |
if (size != PAGE_ALIGN(sizeof(struct snd_pcm_mmap_control))) |
1da177e4c Linux-2.6.12-rc2 |
2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 |
return -EINVAL; area->vm_ops = &snd_pcm_vm_ops_control; area->vm_private_data = substream; area->vm_flags |= VM_RESERVED; return 0; } #else /* ! coherent mmap */ /* * don't support mmap for status and control records. */ |
877211f5e [ALSA] Remove xxx... |
2964 |
static int snd_pcm_mmap_status(struct snd_pcm_substream *substream, struct file *file, |
1da177e4c Linux-2.6.12-rc2 |
2965 2966 2967 2968 |
struct vm_area_struct *area) { return -ENXIO; } |
877211f5e [ALSA] Remove xxx... |
2969 |
static int snd_pcm_mmap_control(struct snd_pcm_substream *substream, struct file *file, |
1da177e4c Linux-2.6.12-rc2 |
2970 2971 2972 2973 2974 |
struct vm_area_struct *area) { return -ENXIO; } #endif /* coherent mmap */ |
9eb4a0678 ALSA: pcm - defin... |
2975 2976 2977 2978 |
static inline struct page * snd_pcm_default_page_ops(struct snd_pcm_substream *substream, unsigned long ofs) { void *vaddr = substream->runtime->dma_area + ofs; |
66b6cfacf ALSA: pcm - fix p... |
2979 2980 2981 2982 |
#if defined(CONFIG_MIPS) && defined(CONFIG_DMA_NONCOHERENT) if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV) return virt_to_page(CAC_ADDR(vaddr)); #endif |
6985c8877 ALSA: pcm - fix p... |
2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 |
#if defined(CONFIG_PPC32) && defined(CONFIG_NOT_COHERENT_CACHE) if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV) { dma_addr_t addr = substream->runtime->dma_addr + ofs; addr -= get_dma_offset(substream->dma_buffer.dev.dev); /* assume dma_handle set via pfn_to_phys() in * mm/dma-noncoherent.c */ return pfn_to_page(addr >> PAGE_SHIFT); } #endif |
9eb4a0678 ALSA: pcm - defin... |
2993 2994 |
return virt_to_page(vaddr); } |
1da177e4c Linux-2.6.12-rc2 |
2995 |
/* |
3ad5afcd5 [ALSA] alsa: nopage |
2996 |
* fault callback for mmapping a RAM page |
1da177e4c Linux-2.6.12-rc2 |
2997 |
*/ |
3ad5afcd5 [ALSA] alsa: nopage |
2998 2999 |
static int snd_pcm_mmap_data_fault(struct vm_area_struct *area, struct vm_fault *vmf) |
1da177e4c Linux-2.6.12-rc2 |
3000 |
{ |
877211f5e [ALSA] Remove xxx... |
3001 3002 |
struct snd_pcm_substream *substream = area->vm_private_data; struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
3003 3004 |
unsigned long offset; struct page * page; |
1da177e4c Linux-2.6.12-rc2 |
3005 3006 3007 |
size_t dma_bytes; if (substream == NULL) |
3ad5afcd5 [ALSA] alsa: nopage |
3008 |
return VM_FAULT_SIGBUS; |
1da177e4c Linux-2.6.12-rc2 |
3009 |
runtime = substream->runtime; |
3ad5afcd5 [ALSA] alsa: nopage |
3010 |
offset = vmf->pgoff << PAGE_SHIFT; |
1da177e4c Linux-2.6.12-rc2 |
3011 3012 |
dma_bytes = PAGE_ALIGN(runtime->dma_bytes); if (offset > dma_bytes - PAGE_SIZE) |
3ad5afcd5 [ALSA] alsa: nopage |
3013 |
return VM_FAULT_SIGBUS; |
9eb4a0678 ALSA: pcm - defin... |
3014 |
if (substream->ops->page) |
1da177e4c Linux-2.6.12-rc2 |
3015 |
page = substream->ops->page(substream, offset); |
9eb4a0678 ALSA: pcm - defin... |
3016 3017 3018 3019 |
else page = snd_pcm_default_page_ops(substream, offset); if (!page) return VM_FAULT_SIGBUS; |
b5810039a [PATCH] core remo... |
3020 |
get_page(page); |
3ad5afcd5 [ALSA] alsa: nopage |
3021 3022 |
vmf->page = page; return 0; |
1da177e4c Linux-2.6.12-rc2 |
3023 |
} |
657b1989d ALSA: pcm - Use d... |
3024 3025 3026 3027 3028 3029 |
static const struct vm_operations_struct snd_pcm_vm_ops_data = { .open = snd_pcm_mmap_data_open, .close = snd_pcm_mmap_data_close, }; static const struct vm_operations_struct snd_pcm_vm_ops_data_fault = { |
1da177e4c Linux-2.6.12-rc2 |
3030 3031 |
.open = snd_pcm_mmap_data_open, .close = snd_pcm_mmap_data_close, |
3ad5afcd5 [ALSA] alsa: nopage |
3032 |
.fault = snd_pcm_mmap_data_fault, |
1da177e4c Linux-2.6.12-rc2 |
3033 |
}; |
657b1989d ALSA: pcm - Use d... |
3034 3035 3036 3037 3038 3039 |
#ifndef ARCH_HAS_DMA_MMAP_COHERENT /* This should be defined / handled globally! */ #ifdef CONFIG_ARM #define ARCH_HAS_DMA_MMAP_COHERENT #endif #endif |
1da177e4c Linux-2.6.12-rc2 |
3040 3041 3042 |
/* * mmap the DMA buffer on RAM */ |
18a2b9623 ALSA: pcm - Expor... |
3043 3044 |
int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *area) |
1da177e4c Linux-2.6.12-rc2 |
3045 |
{ |
1da177e4c Linux-2.6.12-rc2 |
3046 |
area->vm_flags |= VM_RESERVED; |
657b1989d ALSA: pcm - Use d... |
3047 3048 3049 3050 3051 3052 3053 3054 |
#ifdef ARCH_HAS_DMA_MMAP_COHERENT if (!substream->ops->page && substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV) return dma_mmap_coherent(substream->dma_buffer.dev.dev, area, substream->runtime->dma_area, substream->runtime->dma_addr, area->vm_end - area->vm_start); |
9fe17b5d4 ALSA: pcm - Use p... |
3055 3056 3057 3058 |
#elif defined(CONFIG_MIPS) && defined(CONFIG_DMA_NONCOHERENT) if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV && !plat_device_is_coherent(substream->dma_buffer.dev.dev)) area->vm_page_prot = pgprot_noncached(area->vm_page_prot); |
657b1989d ALSA: pcm - Use d... |
3059 3060 3061 |
#endif /* ARCH_HAS_DMA_MMAP_COHERENT */ /* mmap with fault handler */ area->vm_ops = &snd_pcm_vm_ops_data_fault; |
1da177e4c Linux-2.6.12-rc2 |
3062 3063 |
return 0; } |
18a2b9623 ALSA: pcm - Expor... |
3064 |
EXPORT_SYMBOL_GPL(snd_pcm_lib_default_mmap); |
1da177e4c Linux-2.6.12-rc2 |
3065 3066 3067 3068 3069 |
/* * mmap the DMA buffer on I/O memory area */ #if SNDRV_PCM_INFO_MMAP_IOMEM |
877211f5e [ALSA] Remove xxx... |
3070 3071 |
int snd_pcm_lib_mmap_iomem(struct snd_pcm_substream *substream, struct vm_area_struct *area) |
1da177e4c Linux-2.6.12-rc2 |
3072 3073 3074 |
{ long size; unsigned long offset; |
1da177e4c Linux-2.6.12-rc2 |
3075 |
area->vm_page_prot = pgprot_noncached(area->vm_page_prot); |
1da177e4c Linux-2.6.12-rc2 |
3076 3077 3078 3079 3080 3081 3082 |
area->vm_flags |= VM_IO; size = area->vm_end - area->vm_start; offset = area->vm_pgoff << PAGE_SHIFT; if (io_remap_pfn_range(area, area->vm_start, (substream->runtime->dma_addr + offset) >> PAGE_SHIFT, size, area->vm_page_prot)) return -EAGAIN; |
1da177e4c Linux-2.6.12-rc2 |
3083 3084 |
return 0; } |
e88e8ae63 [ALSA] Move OSS-s... |
3085 3086 |
EXPORT_SYMBOL(snd_pcm_lib_mmap_iomem); |
1da177e4c Linux-2.6.12-rc2 |
3087 3088 3089 3090 3091 |
#endif /* SNDRV_PCM_INFO_MMAP */ /* * mmap DMA buffer */ |
877211f5e [ALSA] Remove xxx... |
3092 |
int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, |
1da177e4c Linux-2.6.12-rc2 |
3093 3094 |
struct vm_area_struct *area) { |
877211f5e [ALSA] Remove xxx... |
3095 |
struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
3096 3097 3098 |
long size; unsigned long offset; size_t dma_bytes; |
657b1989d ALSA: pcm - Use d... |
3099 |
int err; |
1da177e4c Linux-2.6.12-rc2 |
3100 3101 3102 3103 3104 3105 3106 3107 3108 |
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { if (!(area->vm_flags & (VM_WRITE|VM_READ))) return -EINVAL; } else { if (!(area->vm_flags & VM_READ)) return -EINVAL; } runtime = substream->runtime; |
1da177e4c Linux-2.6.12-rc2 |
3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 |
if (runtime->status->state == SNDRV_PCM_STATE_OPEN) return -EBADFD; if (!(runtime->info & SNDRV_PCM_INFO_MMAP)) return -ENXIO; if (runtime->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED || runtime->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) return -EINVAL; size = area->vm_end - area->vm_start; offset = area->vm_pgoff << PAGE_SHIFT; dma_bytes = PAGE_ALIGN(runtime->dma_bytes); if ((size_t)size > dma_bytes) return -EINVAL; if (offset > dma_bytes - size) return -EINVAL; |
657b1989d ALSA: pcm - Use d... |
3123 3124 |
area->vm_ops = &snd_pcm_vm_ops_data; area->vm_private_data = substream; |
1da177e4c Linux-2.6.12-rc2 |
3125 |
if (substream->ops->mmap) |
657b1989d ALSA: pcm - Use d... |
3126 |
err = substream->ops->mmap(substream, area); |
1da177e4c Linux-2.6.12-rc2 |
3127 |
else |
18a2b9623 ALSA: pcm - Expor... |
3128 |
err = snd_pcm_lib_default_mmap(substream, area); |
657b1989d ALSA: pcm - Use d... |
3129 3130 3131 |
if (!err) atomic_inc(&substream->mmap_count); return err; |
1da177e4c Linux-2.6.12-rc2 |
3132 |
} |
e88e8ae63 [ALSA] Move OSS-s... |
3133 |
EXPORT_SYMBOL(snd_pcm_mmap_data); |
1da177e4c Linux-2.6.12-rc2 |
3134 3135 |
static int snd_pcm_mmap(struct file *file, struct vm_area_struct *area) { |
877211f5e [ALSA] Remove xxx... |
3136 3137 |
struct snd_pcm_file * pcm_file; struct snd_pcm_substream *substream; |
1da177e4c Linux-2.6.12-rc2 |
3138 3139 3140 3141 |
unsigned long offset; pcm_file = file->private_data; substream = pcm_file->substream; |
7eaa943c8 ALSA: Kill snd_as... |
3142 3143 |
if (PCM_RUNTIME_CHECK(substream)) return -ENXIO; |
1da177e4c Linux-2.6.12-rc2 |
3144 3145 3146 3147 |
offset = area->vm_pgoff << PAGE_SHIFT; switch (offset) { case SNDRV_PCM_MMAP_OFFSET_STATUS: |
548a648b9 [ALSA] Fix contro... |
3148 |
if (pcm_file->no_compat_mmap) |
1da177e4c Linux-2.6.12-rc2 |
3149 3150 3151 |
return -ENXIO; return snd_pcm_mmap_status(substream, file, area); case SNDRV_PCM_MMAP_OFFSET_CONTROL: |
548a648b9 [ALSA] Fix contro... |
3152 |
if (pcm_file->no_compat_mmap) |
1da177e4c Linux-2.6.12-rc2 |
3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 |
return -ENXIO; return snd_pcm_mmap_control(substream, file, area); default: return snd_pcm_mmap_data(substream, file, area); } return 0; } static int snd_pcm_fasync(int fd, struct file * file, int on) { |
877211f5e [ALSA] Remove xxx... |
3163 3164 3165 |
struct snd_pcm_file * pcm_file; struct snd_pcm_substream *substream; struct snd_pcm_runtime *runtime; |
1da177e4c Linux-2.6.12-rc2 |
3166 3167 3168 |
pcm_file = file->private_data; substream = pcm_file->substream; |
7eaa943c8 ALSA: Kill snd_as... |
3169 |
if (PCM_RUNTIME_CHECK(substream)) |
d05468b72 ALSA: pcm - Remov... |
3170 |
return -ENXIO; |
1da177e4c Linux-2.6.12-rc2 |
3171 |
runtime = substream->runtime; |
d05468b72 ALSA: pcm - Remov... |
3172 |
return fasync_helper(fd, file, on, &runtime->fasync); |
1da177e4c Linux-2.6.12-rc2 |
3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 |
} /* * ioctl32 compat */ #ifdef CONFIG_COMPAT #include "pcm_compat.c" #else #define snd_pcm_ioctl_compat NULL #endif /* * To be removed helpers to keep binary compatibility */ |
59d485825 [ALSA] pcm - Make... |
3187 |
#ifdef CONFIG_SND_SUPPORT_OLD_API |
1da177e4c Linux-2.6.12-rc2 |
3188 3189 |
#define __OLD_TO_NEW_MASK(x) ((x&7)|((x&0x07fffff8)<<5)) #define __NEW_TO_OLD_MASK(x) ((x&7)|((x&0xffffff00)>>5)) |
877211f5e [ALSA] Remove xxx... |
3190 3191 |
static void snd_pcm_hw_convert_from_old_params(struct snd_pcm_hw_params *params, struct snd_pcm_hw_params_old *oparams) |
1da177e4c Linux-2.6.12-rc2 |
3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 |
{ unsigned int i; memset(params, 0, sizeof(*params)); params->flags = oparams->flags; for (i = 0; i < ARRAY_SIZE(oparams->masks); i++) params->masks[i].bits[0] = oparams->masks[i]; memcpy(params->intervals, oparams->intervals, sizeof(oparams->intervals)); params->rmask = __OLD_TO_NEW_MASK(oparams->rmask); params->cmask = __OLD_TO_NEW_MASK(oparams->cmask); params->info = oparams->info; params->msbits = oparams->msbits; params->rate_num = oparams->rate_num; params->rate_den = oparams->rate_den; params->fifo_size = oparams->fifo_size; } |
877211f5e [ALSA] Remove xxx... |
3208 3209 |
static void snd_pcm_hw_convert_to_old_params(struct snd_pcm_hw_params_old *oparams, struct snd_pcm_hw_params *params) |
1da177e4c Linux-2.6.12-rc2 |
3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 |
{ unsigned int i; memset(oparams, 0, sizeof(*oparams)); oparams->flags = params->flags; for (i = 0; i < ARRAY_SIZE(oparams->masks); i++) oparams->masks[i] = params->masks[i].bits[0]; memcpy(oparams->intervals, params->intervals, sizeof(oparams->intervals)); oparams->rmask = __NEW_TO_OLD_MASK(params->rmask); oparams->cmask = __NEW_TO_OLD_MASK(params->cmask); oparams->info = params->info; oparams->msbits = params->msbits; oparams->rate_num = params->rate_num; oparams->rate_den = params->rate_den; oparams->fifo_size = params->fifo_size; } |
877211f5e [ALSA] Remove xxx... |
3226 3227 |
static int snd_pcm_hw_refine_old_user(struct snd_pcm_substream *substream, struct snd_pcm_hw_params_old __user * _oparams) |
1da177e4c Linux-2.6.12-rc2 |
3228 |
{ |
877211f5e [ALSA] Remove xxx... |
3229 3230 |
struct snd_pcm_hw_params *params; struct snd_pcm_hw_params_old *oparams = NULL; |
1da177e4c Linux-2.6.12-rc2 |
3231 3232 3233 |
int err; params = kmalloc(sizeof(*params), GFP_KERNEL); |
ef44a1ec6 ALSA: sound/core:... |
3234 3235 |
if (!params) return -ENOMEM; |
1da177e4c Linux-2.6.12-rc2 |
3236 |
|
ef44a1ec6 ALSA: sound/core:... |
3237 3238 3239 |
oparams = memdup_user(_oparams, sizeof(*oparams)); if (IS_ERR(oparams)) { err = PTR_ERR(oparams); |
1da177e4c Linux-2.6.12-rc2 |
3240 3241 3242 3243 3244 3245 3246 3247 3248 |
goto out; } snd_pcm_hw_convert_from_old_params(params, oparams); err = snd_pcm_hw_refine(substream, params); snd_pcm_hw_convert_to_old_params(oparams, params); if (copy_to_user(_oparams, oparams, sizeof(*oparams))) { if (!err) err = -EFAULT; } |
ef44a1ec6 ALSA: sound/core:... |
3249 3250 |
kfree(oparams); |
1da177e4c Linux-2.6.12-rc2 |
3251 3252 |
out: kfree(params); |
1da177e4c Linux-2.6.12-rc2 |
3253 3254 |
return err; } |
877211f5e [ALSA] Remove xxx... |
3255 3256 |
static int snd_pcm_hw_params_old_user(struct snd_pcm_substream *substream, struct snd_pcm_hw_params_old __user * _oparams) |
1da177e4c Linux-2.6.12-rc2 |
3257 |
{ |
877211f5e [ALSA] Remove xxx... |
3258 3259 |
struct snd_pcm_hw_params *params; struct snd_pcm_hw_params_old *oparams = NULL; |
1da177e4c Linux-2.6.12-rc2 |
3260 3261 3262 |
int err; params = kmalloc(sizeof(*params), GFP_KERNEL); |
ef44a1ec6 ALSA: sound/core:... |
3263 3264 3265 3266 3267 3268 |
if (!params) return -ENOMEM; oparams = memdup_user(_oparams, sizeof(*oparams)); if (IS_ERR(oparams)) { err = PTR_ERR(oparams); |
1da177e4c Linux-2.6.12-rc2 |
3269 3270 3271 3272 3273 3274 3275 3276 3277 |
goto out; } snd_pcm_hw_convert_from_old_params(params, oparams); err = snd_pcm_hw_params(substream, params); snd_pcm_hw_convert_to_old_params(oparams, params); if (copy_to_user(_oparams, oparams, sizeof(*oparams))) { if (!err) err = -EFAULT; } |
ef44a1ec6 ALSA: sound/core:... |
3278 3279 |
kfree(oparams); |
1da177e4c Linux-2.6.12-rc2 |
3280 3281 |
out: kfree(params); |
1da177e4c Linux-2.6.12-rc2 |
3282 3283 |
return err; } |
59d485825 [ALSA] pcm - Make... |
3284 |
#endif /* CONFIG_SND_SUPPORT_OLD_API */ |
1da177e4c Linux-2.6.12-rc2 |
3285 |
|
7003609b3 ALSA: add dummy f... |
3286 |
#ifndef CONFIG_MMU |
55c63bd25 ALSA: provide a m... |
3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 |
static unsigned long snd_pcm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags) { struct snd_pcm_file *pcm_file = file->private_data; struct snd_pcm_substream *substream = pcm_file->substream; struct snd_pcm_runtime *runtime = substream->runtime; unsigned long offset = pgoff << PAGE_SHIFT; switch (offset) { case SNDRV_PCM_MMAP_OFFSET_STATUS: return (unsigned long)runtime->status; case SNDRV_PCM_MMAP_OFFSET_CONTROL: return (unsigned long)runtime->control; default: return (unsigned long)runtime->dma_area + offset; } |
7003609b3 ALSA: add dummy f... |
3306 3307 |
} #else |
55c63bd25 ALSA: provide a m... |
3308 |
# define snd_pcm_get_unmapped_area NULL |
7003609b3 ALSA: add dummy f... |
3309 |
#endif |
1da177e4c Linux-2.6.12-rc2 |
3310 3311 3312 |
/* * Register section */ |
9c2e08c59 [PATCH] mark stru... |
3313 |
const struct file_operations snd_pcm_f_ops[2] = { |
1da177e4c Linux-2.6.12-rc2 |
3314 |
{ |
2af677fc8 [ALSA] dynamic mi... |
3315 3316 |
.owner = THIS_MODULE, .write = snd_pcm_write, |
ee0b3e671 [PATCH] Remove re... |
3317 |
.aio_write = snd_pcm_aio_write, |
f87135f56 [ALSA] dynamic mi... |
3318 |
.open = snd_pcm_playback_open, |
2af677fc8 [ALSA] dynamic mi... |
3319 |
.release = snd_pcm_release, |
02f4865fa ALSA: core - Defi... |
3320 |
.llseek = no_llseek, |
2af677fc8 [ALSA] dynamic mi... |
3321 3322 3323 3324 3325 |
.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, |
55c63bd25 ALSA: provide a m... |
3326 |
.get_unmapped_area = snd_pcm_get_unmapped_area, |
1da177e4c Linux-2.6.12-rc2 |
3327 3328 |
}, { |
2af677fc8 [ALSA] dynamic mi... |
3329 3330 |
.owner = THIS_MODULE, .read = snd_pcm_read, |
ee0b3e671 [PATCH] Remove re... |
3331 |
.aio_read = snd_pcm_aio_read, |
f87135f56 [ALSA] dynamic mi... |
3332 |
.open = snd_pcm_capture_open, |
2af677fc8 [ALSA] dynamic mi... |
3333 |
.release = snd_pcm_release, |
02f4865fa ALSA: core - Defi... |
3334 |
.llseek = no_llseek, |
2af677fc8 [ALSA] dynamic mi... |
3335 3336 3337 3338 3339 |
.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, |
55c63bd25 ALSA: provide a m... |
3340 |
.get_unmapped_area = snd_pcm_get_unmapped_area, |
1da177e4c Linux-2.6.12-rc2 |
3341 3342 |
} }; |