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[ALSA] ad1816a - Fix PCM trigger direction

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Modules: AD1816A driver

Fixed the bug of capture with Shark Predator ISA resulting in:
	arecord: pcm_read:1196: read error: Input/output error

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Ken Arromdee 2006-02-09 13:50:26 +01:00 committed by Jaroslav Kysela
parent bd84b0cc99
commit d08a23e250
1 changed files with 9 additions and 6 deletions
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15
sound/isa/ad1816a/ad1816a_lib.c
View file

@ -1,4 +1,3 @@
/*
ad1816a.c - lowlevel code for Analog Devices AD1816A chip.
Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>
@ -175,7 +174,7 @@ static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode)
static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what,
int channel, int cmd)
int channel, int cmd, int iscapture)
{
int error = 0;
@ -184,10 +183,14 @@ static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what,
case SNDRV_PCM_TRIGGER_STOP:
spin_lock(&chip->lock);
cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00;
if (what & AD1816A_PLAYBACK_ENABLE)
/* if (what & AD1816A_PLAYBACK_ENABLE) */
/* That is not valid, because playback and capture enable
* are the same bit pattern, just to different addresses
*/
if (! iscapture)
snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
AD1816A_PLAYBACK_ENABLE, cmd);
if (what & AD1816A_CAPTURE_ENABLE)
else
snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
AD1816A_CAPTURE_ENABLE, cmd);
spin_unlock(&chip->lock);
@ -204,14 +207,14 @@ static int snd_ad1816a_playback_trigger(struct snd_pcm_substream *substream, int
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE,
SNDRV_PCM_STREAM_PLAYBACK, cmd);
SNDRV_PCM_STREAM_PLAYBACK, cmd, 0);
}
static int snd_ad1816a_capture_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE,
SNDRV_PCM_STREAM_CAPTURE, cmd);
SNDRV_PCM_STREAM_CAPTURE, cmd, 1);
}
static int snd_ad1816a_hw_params(struct snd_pcm_substream *substream,