mirror of https://gitee.com/openkylin/linux.git
[ALSA] Increase capture buffer sizes.
EMU10K1/EMU10K2 driver Signed-off-by: James Courtier-Dutton <James@superbug.co.uk>
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@ -1,7 +1,7 @@
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/*
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* Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
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* Driver p16v chips
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* Version: 0.22
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* Version: 0.25
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*
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* FEATURES currently supported:
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* Output fixed at S32_LE, 2 channel to hw:0,0
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@ -48,6 +48,8 @@
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* e.g. When HD Capture source is set to SPDIF,
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* setting HD Capture channel to 0 captures from CDROM digital input.
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* setting HD Capture channel to 1 captures from SPDIF in.
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* 0.25
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* Include capture buffer sizes.
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*
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* BUGS:
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* Some stability problems when unloading the snd-p16v kernel module.
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@ -149,9 +151,9 @@ static snd_pcm_hardware_t snd_p16v_capture_hw = {
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.rate_max = 192000,
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.channels_min = 2,
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.channels_max = 2,
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.buffer_bytes_max = (32*1024),
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.buffer_bytes_max = (65536 - 64),
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.period_bytes_min = 64,
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.period_bytes_max = (16*1024),
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.period_bytes_max = (65536 - 128) >> 1, /* size has to be N*64 bytes */
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.periods_min = 2,
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.periods_max = 2,
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.fifo_size = 0,
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@ -637,7 +639,7 @@ int snd_p16v_pcm(emu10k1_t *emu, int device, snd_pcm_t **rpcm)
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if ((err = snd_pcm_lib_preallocate_pages(substream,
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SNDRV_DMA_TYPE_DEV,
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snd_dma_pci_data(emu->pci),
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64*1024, 64*1024)) < 0)
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65536 - 64, 65536 - 64)) < 0)
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return err;
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//snd_printk("preallocate capture substream: err=%d\n", err);
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}
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