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| author | Takashi Iwai <tiwai@suse.de> | 2014-09-10 13:48:07 +0400 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-09-15 17:52:09 +0400 |
| commit | 8d3a8b5cb57da4e327bdaf7c81a90d4105b73205 (patch) | |
| tree | ea6b853a3c3ebc09d085115e59871bbee4f08a41 /sound/pci/mixart/mixart.c | |
| parent | db0a5214b8d6cc7a90ce3336d24a85b90cbb4e67 (diff) | |
| download | linux-8d3a8b5cb57da4e327bdaf7c81a90d4105b73205.tar.xz | |
ALSA: mixart: Use nonatomic PCM ops
Like the previous patch for VX boards, miXart device driver can be
also rewritten to use nonatomic PCM ops. Simply spinlocks are
replaced with mutex, the tasklet code is merged into the threaded irq
handler. Also, now mgr->msg_mutex is superfluous, so merged to
msg_lock.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/mixart/mixart.c')
| -rw-r--r-- | sound/pci/mixart/mixart.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c index 75fc342cff2a..1faf47e81570 100644 --- a/sound/pci/mixart/mixart.c +++ b/sound/pci/mixart/mixart.c @@ -986,6 +986,7 @@ static int snd_mixart_pcm_analog(struct snd_mixart *chip) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops); pcm->info_flags = 0; + pcm->nonatomic = true; strcpy(pcm->name, name); preallocate_buffers(chip, pcm); @@ -1018,6 +1019,7 @@ static int snd_mixart_pcm_digital(struct snd_mixart *chip) snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops); pcm->info_flags = 0; + pcm->nonatomic = true; strcpy(pcm->name, name); preallocate_buffers(chip, pcm); @@ -1303,8 +1305,9 @@ static int snd_mixart_probe(struct pci_dev *pci, } } - if (request_irq(pci->irq, snd_mixart_interrupt, IRQF_SHARED, - KBUILD_MODNAME, mgr)) { + if (request_threaded_irq(pci->irq, snd_mixart_interrupt, + snd_mixart_threaded_irq, IRQF_SHARED, + KBUILD_MODNAME, mgr)) { dev_err(&pci->dev, "unable to grab IRQ %d\n", pci->irq); snd_mixart_free(mgr); return -EBUSY; @@ -1314,24 +1317,18 @@ static int snd_mixart_probe(struct pci_dev *pci, sprintf(mgr->shortname, "Digigram miXart"); sprintf(mgr->longname, "%s at 0x%lx & 0x%lx, irq %i", mgr->shortname, mgr->mem[0].phys, mgr->mem[1].phys, mgr->irq); - /* ISR spinlock */ - spin_lock_init(&mgr->lock); - /* init mailbox */ mgr->msg_fifo_readptr = 0; mgr->msg_fifo_writeptr = 0; - spin_lock_init(&mgr->msg_lock); - mutex_init(&mgr->msg_mutex); + mutex_init(&mgr->lock); + mutex_init(&mgr->msg_lock); init_waitqueue_head(&mgr->msg_sleep); atomic_set(&mgr->msg_processed, 0); /* init setup mutex*/ mutex_init(&mgr->setup_mutex); - /* init message taslket */ - tasklet_init(&mgr->msg_taskq, snd_mixart_msg_tasklet, (unsigned long) mgr); - /* card assignment */ mgr->num_cards = MIXART_MAX_CARDS; /* 4 FIXME: configurable? */ for (i = 0; i < mgr->num_cards; i++) { |