ALSA: via82xx - check continuous pages in buffer setup
Check continuous pages in the buffer set up so that the number of BDL is reduced. Also increased the max buffer size. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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@ -313,6 +313,7 @@ struct snd_via_sg_table {
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} ;
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#define VIA_TABLE_SIZE 255
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#define VIA_MAX_BUFSIZE (1<<24)
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struct viadev {
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unsigned int reg_offset;
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@ -456,9 +457,7 @@ static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substre
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}
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addr = snd_pcm_sgbuf_get_addr(substream, ofs);
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((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr);
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r = PAGE_SIZE - (ofs % PAGE_SIZE);
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if (rest < r)
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r = rest;
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r = snd_pcm_sgbuf_get_chunk_size(substream, ofs, rest);
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rest -= r;
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if (! rest) {
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if (i == periods - 1)
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@ -1147,9 +1146,9 @@ static struct snd_pcm_hardware snd_via82xx_hw =
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.rate_max = 48000,
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.channels_min = 1,
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.channels_max = 2,
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.buffer_bytes_max = 128 * 1024,
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.buffer_bytes_max = VIA_MAX_BUFSIZE,
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.period_bytes_min = 32,
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.period_bytes_max = 128 * 1024,
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.period_bytes_max = VIA_MAX_BUFSIZE / 2,
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.periods_min = 2,
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.periods_max = VIA_TABLE_SIZE / 2,
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.fifo_size = 0,
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@ -1403,7 +1402,7 @@ static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
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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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64*1024, 128*1024);
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64*1024, VIA_MAX_BUFSIZE);
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/* PCM #1: multi-channel playback and 2nd capture */
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err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
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@ -1421,7 +1420,7 @@ static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
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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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64*1024, 128*1024);
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64*1024, VIA_MAX_BUFSIZE);
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return 0;
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}
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@ -1455,7 +1454,7 @@ static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
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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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64*1024, 128*1024);
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64*1024, VIA_MAX_BUFSIZE);
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/* SPDIF supported? */
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if (! ac97_can_spdif(chip->ac97))
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@ -1474,7 +1473,7 @@ static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
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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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64*1024, 128*1024)
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64*1024, VIA_MAX_BUFSIZE);
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return 0;
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}
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@ -1504,7 +1503,7 @@ static int __devinit snd_via686_pcm_new(struct via82xx *chip)
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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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64*1024, 128*1024);
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64*1024, VIA_MAX_BUFSIZE);
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return 0;
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}
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