forked from Minki/linux
ALSA: lola - Use SG-buffer
Completely switch to SG-buffer now, as it's working stably. Signed-off-by: Takashi Iwai <tiwai@suse.de>
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fe3d393eda
commit
972505ccde
sound/pci/lola
@ -588,7 +588,6 @@ static int __devinit lola_create(struct snd_card *card, struct pci_dev *pci,
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chip->irq = -1;
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chip->sample_rate_min = sample_rate_min[dev];
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chip->granularity = granularity[dev];
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/* FIXME */
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if (chip->granularity != LOLA_GRANULARITY_MAX) {
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@ -26,28 +26,10 @@
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#include <sound/pcm.h>
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#include "lola.h"
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/* #define USE_SG_BUFFER */
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#define LOLA_MAX_BDL_ENTRIES 8
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#define LOLA_MAX_BUF_SIZE (1024*1024*1024)
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#define LOLA_BDL_ENTRY_SIZE (16 * 16)
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#ifdef USE_SG_BUFFER
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#define get_addr(substream, ofs) \
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snd_pcm_sgbuf_get_addr(substream, ofs)
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#define get_size(substream, ofs, size) \
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snd_pcm_sgbuf_get_chunk_size(substream, ofs, size)
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#define ops_page snd_pcm_sgbuf_ops_page
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#define PREALLOC_TYPE SNDRV_DMA_TYPE_DEV_SG
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#else
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#define get_addr(substream, ofs) \
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((substream)->runtime->dma_addr + ofs)
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#define get_size(substream, ofs, size) \
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(size)
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#define ops_page NULL
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#define PREALLOC_TYPE SNDRV_DMA_TYPE_DEV
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#endif
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static struct lola_pcm *lola_get_pcm(struct snd_pcm_substream *substream)
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{
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struct lola *chip = snd_pcm_substream_chip(substream);
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@ -276,12 +258,12 @@ static int setup_bdle(struct snd_pcm_substream *substream,
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if (str->frags >= LOLA_MAX_BDL_ENTRIES)
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return -EINVAL;
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addr = get_addr(substream, ofs);
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addr = snd_pcm_sgbuf_get_addr(substream, ofs);
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/* program the address field of the BDL entry */
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bdl[0] = cpu_to_le32((u32)addr);
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bdl[1] = cpu_to_le32(upper_32_bits(addr));
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/* program the size field of the BDL entry */
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chunk = get_size(substream, ofs, size);
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chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size);
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bdl[2] = cpu_to_le32(chunk);
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/* program the IOC to enable interrupt
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* only when the whole fragment is processed
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@ -530,7 +512,7 @@ static struct snd_pcm_ops lola_pcm_ops = {
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.prepare = lola_pcm_prepare,
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.trigger = lola_pcm_trigger,
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.pointer = lola_pcm_pointer,
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.page = ops_page,
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.page = snd_pcm_sgbuf_ops_page,
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};
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int __devinit lola_create_pcm(struct lola *chip)
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@ -559,7 +541,7 @@ int __devinit lola_create_pcm(struct lola *chip)
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snd_pcm_set_ops(pcm, i, &lola_pcm_ops);
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}
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/* buffer pre-allocation */
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snd_pcm_lib_preallocate_pages_for_all(pcm, PREALLOC_TYPE,
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snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
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snd_dma_pci_data(chip->pci),
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1024 * 64, 32 * 1024 * 1024);
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return 0;
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