diff options
Diffstat (limited to 'sound/usb/usbaudio.c')
-rw-r--r-- | sound/usb/usbaudio.c | 152 |
1 files changed, 79 insertions, 73 deletions
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c index d5ae2055b89..99dae024b64 100644 --- a/sound/usb/usbaudio.c +++ b/sound/usb/usbaudio.c @@ -41,7 +41,6 @@ #include <sound/driver.h> #include <linux/bitops.h> #include <linux/init.h> -#include <linux/interrupt.h> #include <linux/list.h> #include <linux/slab.h> #include <linux/string.h> @@ -185,7 +184,6 @@ struct snd_usb_substream { unsigned int num_formats; /* number of supported audio formats (list) */ struct list_head fmt_list; /* format list */ spinlock_t lock; - struct tasklet_struct start_period_elapsed; /* for start trigger */ struct snd_urb_ops ops; /* callbacks (must be filled at init) */ }; @@ -480,6 +478,28 @@ static int retire_playback_sync_urb_hs(snd_usb_substream_t *subs, } /* + * Prepare urb for streaming before playback starts. + * + * We don't care about (or have) any data, so we just send a transfer delimiter. + */ +static int prepare_startup_playback_urb(snd_usb_substream_t *subs, + snd_pcm_runtime_t *runtime, + struct urb *urb) +{ + unsigned int i; + snd_urb_ctx_t *ctx = urb->context; + + urb->dev = ctx->subs->dev; + urb->number_of_packets = subs->packs_per_ms; + for (i = 0; i < subs->packs_per_ms; ++i) { + urb->iso_frame_desc[i].offset = 0; + urb->iso_frame_desc[i].length = 0; + } + urb->transfer_buffer_length = 0; + return 0; +} + +/* * prepare urb for playback data pipe * * Since a URB can handle only a single linear buffer, we must use double @@ -568,12 +588,8 @@ static int prepare_playback_urb(snd_usb_substream_t *subs, subs->hwptr_done -= runtime->buffer_size; spin_unlock_irqrestore(&subs->lock, flags); urb->transfer_buffer_length = offs * stride; - if (period_elapsed) { - if (likely(subs->running)) - snd_pcm_period_elapsed(subs->pcm_substream); - else - tasklet_hi_schedule(&subs->start_period_elapsed); - } + if (period_elapsed) + snd_pcm_period_elapsed(subs->pcm_substream); return 0; } @@ -588,22 +604,12 @@ static int retire_playback_urb(snd_usb_substream_t *subs, return 0; } -/* - * Delay the snd_pcm_period_elapsed() call until after the start trigger - * callback so that we're not longer in the substream's lock. - */ -static void start_period_elapsed(unsigned long data) -{ - snd_usb_substream_t *subs = (snd_usb_substream_t *)data; - snd_pcm_period_elapsed(subs->pcm_substream); -} - /* */ static struct snd_urb_ops audio_urb_ops[2] = { { - .prepare = prepare_playback_urb, + .prepare = prepare_startup_playback_urb, .retire = retire_playback_urb, .prepare_sync = prepare_playback_sync_urb, .retire_sync = retire_playback_sync_urb, @@ -618,7 +624,7 @@ static struct snd_urb_ops audio_urb_ops[2] = { static struct snd_urb_ops audio_urb_ops_high_speed[2] = { { - .prepare = prepare_playback_urb, + .prepare = prepare_startup_playback_urb, .retire = retire_playback_urb, .prepare_sync = prepare_playback_sync_urb_hs, .retire_sync = retire_playback_sync_urb_hs, @@ -692,9 +698,9 @@ static int snd_pcm_alloc_vmalloc_buffer(snd_pcm_substream_t *subs, size_t size) if (runtime->dma_area) { if (runtime->dma_bytes >= size) return 0; /* already large enough */ - vfree_nocheck(runtime->dma_area); + vfree(runtime->dma_area); } - runtime->dma_area = vmalloc_nocheck(size); + runtime->dma_area = vmalloc(size); if (! runtime->dma_area) return -ENOMEM; runtime->dma_bytes = size; @@ -706,7 +712,7 @@ static int snd_pcm_free_vmalloc_buffer(snd_pcm_substream_t *subs) { snd_pcm_runtime_t *runtime = subs->runtime; if (runtime->dma_area) { - vfree_nocheck(runtime->dma_area); + vfree(runtime->dma_area); runtime->dma_area = NULL; } return 0; @@ -838,8 +844,7 @@ static int wait_clear_urbs(snd_usb_substream_t *subs) } if (! alive) break; - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(1); + schedule_timeout_uninterruptible(1); } while (time_before(jiffies, end_time)); if (alive) snd_printk(KERN_ERR "timeout: still %d active urbs..\n", alive); @@ -864,25 +869,40 @@ static snd_pcm_uframes_t snd_usb_pcm_pointer(snd_pcm_substream_t *substream) /* - * start/stop substream + * start/stop playback substream */ -static int snd_usb_pcm_trigger(snd_pcm_substream_t *substream, int cmd) +static int snd_usb_pcm_playback_trigger(snd_pcm_substream_t *substream, + int cmd) { - snd_usb_substream_t *subs = (snd_usb_substream_t *)substream->runtime->private_data; - int err; + snd_usb_substream_t *subs = substream->runtime->private_data; switch (cmd) { case SNDRV_PCM_TRIGGER_START: - err = start_urbs(subs, substream->runtime); - break; + subs->ops.prepare = prepare_playback_urb; + return 0; case SNDRV_PCM_TRIGGER_STOP: - err = deactivate_urbs(subs, 0, 0); - break; + return deactivate_urbs(subs, 0, 0); default: - err = -EINVAL; - break; + return -EINVAL; + } +} + +/* + * start/stop capture substream + */ +static int snd_usb_pcm_capture_trigger(snd_pcm_substream_t *substream, + int cmd) +{ + snd_usb_substream_t *subs = substream->runtime->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + return start_urbs(subs, substream->runtime); + case SNDRV_PCM_TRIGGER_STOP: + return deactivate_urbs(subs, 0, 0); + default: + return -EINVAL; } - return err < 0 ? err : 0; } @@ -1044,7 +1064,7 @@ static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_by u->urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; u->urb->interval = 1 << subs->datainterval; u->urb->context = u; - u->urb->complete = snd_usb_complete_callback(snd_complete_urb); + u->urb->complete = snd_complete_urb; } if (subs->syncpipe) { @@ -1070,7 +1090,7 @@ static int init_substream_urbs(snd_usb_substream_t *subs, unsigned int period_by u->urb->number_of_packets = 1; u->urb->interval = 1 << subs->syncinterval; u->urb->context = u; - u->urb->complete = snd_usb_complete_callback(snd_complete_sync_urb); + u->urb->complete = snd_complete_sync_urb; } } return 0; @@ -1414,7 +1434,7 @@ static int snd_usb_hw_free(snd_pcm_substream_t *substream) static int snd_usb_pcm_prepare(snd_pcm_substream_t *substream) { snd_pcm_runtime_t *runtime = substream->runtime; - snd_usb_substream_t *subs = (snd_usb_substream_t *)runtime->private_data; + snd_usb_substream_t *subs = runtime->private_data; if (! subs->cur_audiofmt) { snd_printk(KERN_ERR "usbaudio: no format is specified!\n"); @@ -1434,7 +1454,13 @@ static int snd_usb_pcm_prepare(snd_pcm_substream_t *substream) deactivate_urbs(subs, 0, 1); wait_clear_urbs(subs); - return 0; + /* for playback, submit the URBs now; otherwise, the first hwptr_done + * updates for all URBs would happen at the same time when starting */ + if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) { + subs->ops.prepare = prepare_startup_playback_urb; + return start_urbs(subs, runtime); + } else + return 0; } static snd_pcm_hardware_t snd_usb_playback = @@ -1444,9 +1470,9 @@ static snd_pcm_hardware_t snd_usb_playback = SNDRV_PCM_INFO_BATCH | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER, - .buffer_bytes_max = (256*1024), + .buffer_bytes_max = 1024 * 1024, .period_bytes_min = 64, - .period_bytes_max = (128*1024), + .period_bytes_max = 512 * 1024, .periods_min = 2, .periods_max = 1024, }; @@ -1458,9 +1484,9 @@ static snd_pcm_hardware_t snd_usb_capture = SNDRV_PCM_INFO_BATCH | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER, - .buffer_bytes_max = (256*1024), + .buffer_bytes_max = 1024 * 1024, .period_bytes_min = 64, - .period_bytes_max = (128*1024), + .period_bytes_max = 512 * 1024, .periods_min = 2, .periods_max = 1024, }; @@ -1848,7 +1874,7 @@ static snd_pcm_ops_t snd_usb_playback_ops = { .hw_params = snd_usb_hw_params, .hw_free = snd_usb_hw_free, .prepare = snd_usb_pcm_prepare, - .trigger = snd_usb_pcm_trigger, + .trigger = snd_usb_pcm_playback_trigger, .pointer = snd_usb_pcm_pointer, .page = snd_pcm_get_vmalloc_page, }; @@ -1860,7 +1886,7 @@ static snd_pcm_ops_t snd_usb_capture_ops = { .hw_params = snd_usb_hw_params, .hw_free = snd_usb_hw_free, .prepare = snd_usb_pcm_prepare, - .trigger = snd_usb_pcm_trigger, + .trigger = snd_usb_pcm_capture_trigger, .pointer = snd_usb_pcm_pointer, .page = snd_pcm_get_vmalloc_page, }; @@ -2079,9 +2105,6 @@ static void init_substream(snd_usb_stream_t *as, int stream, struct audioformat INIT_LIST_HEAD(&subs->fmt_list); spin_lock_init(&subs->lock); - if (stream == SNDRV_PCM_STREAM_PLAYBACK) - tasklet_init(&subs->start_period_elapsed, start_period_elapsed, - (unsigned long)subs); subs->stream = as; subs->direction = stream; @@ -2755,9 +2778,9 @@ static int create_fixed_stream_quirk(snd_usb_audio_t *chip, /* * create a stream for an interface with proper descriptors */ -static int create_standard_interface_quirk(snd_usb_audio_t *chip, - struct usb_interface *iface, - const snd_usb_audio_quirk_t *quirk) +static int create_standard_audio_quirk(snd_usb_audio_t *chip, + struct usb_interface *iface, + const snd_usb_audio_quirk_t *quirk) { struct usb_host_interface *alts; struct usb_interface_descriptor *altsd; @@ -2765,24 +2788,14 @@ static int create_standard_interface_quirk(snd_usb_audio_t *chip, alts = &iface->altsetting[0]; altsd = get_iface_desc(alts); - switch (quirk->type) { - case QUIRK_AUDIO_STANDARD_INTERFACE: - err = parse_audio_endpoints(chip, altsd->bInterfaceNumber); - if (!err) - usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0); /* reset the current interface */ - break; - case QUIRK_MIDI_STANDARD_INTERFACE: - err = snd_usb_create_midi_interface(chip, iface, NULL); - break; - default: - snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type); - return -ENXIO; - } + err = parse_audio_endpoints(chip, altsd->bInterfaceNumber); if (err < 0) { snd_printk(KERN_ERR "cannot setup if %d: error %d\n", altsd->bInterfaceNumber, err); return err; } + /* reset the current interface */ + usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0); return 0; } @@ -3044,7 +3057,7 @@ static int snd_usb_create_quirk(snd_usb_audio_t *chip, [QUIRK_MIDI_RAW] = snd_usb_create_midi_interface, [QUIRK_MIDI_EMAGIC] = snd_usb_create_midi_interface, [QUIRK_MIDI_MIDITECH] = snd_usb_create_midi_interface, - [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_interface_quirk, + [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk, [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk, [QUIRK_AUDIO_EDIROL_UA700_UA25] = create_ua700_ua25_quirk, [QUIRK_AUDIO_EDIROL_UA1000] = create_ua1000_quirk, @@ -3222,7 +3235,6 @@ static void *snd_usb_audio_probe(struct usb_device *dev, struct usb_interface *intf, const struct usb_device_id *usb_id) { - struct usb_host_config *config = dev->actconfig; const snd_usb_audio_quirk_t *quirk = (const snd_usb_audio_quirk_t *)usb_id->driver_info; int i, err; snd_usb_audio_t *chip; @@ -3243,7 +3255,6 @@ static void *snd_usb_audio_probe(struct usb_device *dev, if (id == USB_ID(0x041e, 0x3000)) { if (snd_usb_extigy_boot_quirk(dev, intf) < 0) goto __err_val; - config = dev->actconfig; } /* SB Audigy 2 NX needs its own boot-up magic, too */ if (id == USB_ID(0x041e, 0x3020)) { @@ -3272,11 +3283,6 @@ static void *snd_usb_audio_probe(struct usb_device *dev, /* it's a fresh one. * now look for an empty slot and create a new card instance */ - /* first, set the current configuration for this device */ - if (usb_reset_configuration(dev) < 0) { - snd_printk(KERN_ERR "cannot reset configuration (value 0x%x)\n", get_cfg_desc(config)->bConfigurationValue); - goto __error; - } for (i = 0; i < SNDRV_CARDS; i++) if (enable[i] && ! usb_chip[i] && (vid[i] == -1 || vid[i] == USB_ID_VENDOR(id)) && |