diff options
Diffstat (limited to 'drivers/media/usb/tm6000/tm6000-alsa.c')
-rw-r--r-- | drivers/media/usb/tm6000/tm6000-alsa.c | 82 |
1 files changed, 1 insertions, 81 deletions
diff --git a/drivers/media/usb/tm6000/tm6000-alsa.c b/drivers/media/usb/tm6000/tm6000-alsa.c index d6c79c13b332..c26a0ff60a64 100644 --- a/drivers/media/usb/tm6000/tm6000-alsa.c +++ b/drivers/media/usb/tm6000/tm6000-alsa.c @@ -10,7 +10,6 @@ #include <linux/interrupt.h> #include <linux/usb.h> #include <linux/slab.h> -#include <linux/vmalloc.h> #include <linux/delay.h> #include <sound/core.h> @@ -94,40 +93,6 @@ static int _tm6000_stop_audio_dma(struct snd_tm6000_card *chip) return 0; } -static void dsp_buffer_free(struct snd_pcm_substream *substream) -{ - struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); - - dprintk(2, "Freeing buffer\n"); - - vfree(substream->runtime->dma_area); - substream->runtime->dma_area = NULL; - substream->runtime->dma_bytes = 0; -} - -static int dsp_buffer_alloc(struct snd_pcm_substream *substream, int size) -{ - struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); - - dprintk(2, "Allocating buffer\n"); - - if (substream->runtime->dma_area) { - if (substream->runtime->dma_bytes > size) - return 0; - - dsp_buffer_free(substream); - } - - substream->runtime->dma_area = vmalloc(size); - if (!substream->runtime->dma_area) - return -ENOMEM; - - substream->runtime->dma_bytes = size; - - return 0; -} - - /**************************************************************************** ALSA PCM Interface ****************************************************************************/ @@ -269,40 +234,6 @@ static int tm6000_fillbuf(struct tm6000_core *core, char *buf, int size) } /* - * hw_params callback - */ -static int snd_tm6000_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - int size, rc; - - size = params_period_bytes(hw_params) * params_periods(hw_params); - - rc = dsp_buffer_alloc(substream, size); - if (rc < 0) - return rc; - - return 0; -} - -/* - * hw free callback - */ -static int snd_tm6000_hw_free(struct snd_pcm_substream *substream) -{ - struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream); - struct tm6000_core *core = chip->core; - - if (atomic_read(&core->stream_started) > 0) { - atomic_set(&core->stream_started, 0); - schedule_work(&core->wq_trigger); - } - - dsp_buffer_free(substream); - return 0; -} - -/* * prepare callback */ static int snd_tm6000_prepare(struct snd_pcm_substream *substream) @@ -369,27 +300,15 @@ static snd_pcm_uframes_t snd_tm6000_pointer(struct snd_pcm_substream *substream) return chip->buf_pos; } -static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs, - unsigned long offset) -{ - void *pageptr = subs->runtime->dma_area + offset; - - return vmalloc_to_page(pageptr); -} - /* * operators */ static const struct snd_pcm_ops snd_tm6000_pcm_ops = { .open = snd_tm6000_pcm_open, .close = snd_tm6000_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_tm6000_hw_params, - .hw_free = snd_tm6000_hw_free, .prepare = snd_tm6000_prepare, .trigger = snd_tm6000_card_trigger, .pointer = snd_tm6000_pointer, - .page = snd_pcm_get_vmalloc_page, }; /* @@ -459,6 +378,7 @@ static int tm6000_audio_init(struct tm6000_core *dev) strscpy(pcm->name, "Trident TM5600/60x0", sizeof(pcm->name)); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_tm6000_pcm_ops); + snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0); INIT_WORK(&dev->wq_trigger, audio_trigger); rc = snd_card_register(card); |