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Added special SigmaTel initialization.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3189 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
beveloper 2003-05-10 17:55:25 +00:00
parent fd65314748
commit 151291b640
1 changed files with 45 additions and 0 deletions
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45
src/add-ons/kernel/drivers/audio/ac97/ich/ac97.c
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@ -654,21 +654,66 @@ void alc650_init(ac97_dev *dev)
void stac9708_init(ac97_dev *dev)
{
LOG(("stac9708_init\n"));
/* ALSA initializes some registers that according to the
* documentation for this codec do not exist. If the
* following doesn't work, we may need to do that, too.
*/
/* The Analog Special reg is at 0x6C, other codecs have it at 0x6E */
/* Set Analog Special to default (DAC/ADC -6dB disabled) */
ac97_reg_cached_write(dev, 0x6C, 0x0000);
/* Set Multi Channel to default */
ac97_reg_cached_write(dev, 0x74, 0x0000);
}
void stac9721_init(ac97_dev *dev)
{
LOG(("stac9721_init\n"));
/* Set Analog Special to default (DAC/ADC -6dB disabled) */
ac97_reg_cached_write(dev, 0x6E, 0x0000);
/* Enable register 0x72 */
ac97_reg_cached_write(dev, 0x70, 0xabba);
/* Set Analog Current to -50% */
ac97_reg_cached_write(dev, 0x72, 0x0002);
/* Set Multi Channel to default */
ac97_reg_cached_write(dev, 0x74, 0x0000);
/* Enable register 0x78 */
ac97_reg_cached_write(dev, 0x76, 0xabba);
/* Set Clock Access to default */
ac97_reg_cached_write(dev, 0x78, 0x0000);
}
void stac9744_init(ac97_dev *dev)
{
LOG(("stac9744_init\n"));
/* Set Analog Special to default (DAC/ADC -6dB disabled) */
ac97_reg_cached_write(dev, 0x6E, 0x0000);
/* Enable register 0x72 */
ac97_reg_cached_write(dev, 0x70, 0xabba);
/* Set Analog Current to -50% */
ac97_reg_cached_write(dev, 0x72, 0x0002);
/* Set Multi Channel to default */
ac97_reg_cached_write(dev, 0x74, 0x0000);
/* Enable register 0x78 */
ac97_reg_cached_write(dev, 0x76, 0xabba);
/* Set Clock Access to default */
ac97_reg_cached_write(dev, 0x78, 0x0000);
}
void stac9756_init(ac97_dev *dev)
{
LOG(("stac9756_init\n"));
/* Set Analog Special to default (AC97 all-mix, DAC/ADC -6dB disabled) */
ac97_reg_cached_write(dev, 0x6E, 0x1000);
/* Enable register 0x72 */
ac97_reg_cached_write(dev, 0x70, 0xabba);
/* Set Analog Current to -50% */
ac97_reg_cached_write(dev, 0x72, 0x0002);
/* Set Multi Channel to default */
ac97_reg_cached_write(dev, 0x74, 0x0000);
/* Enable register 0x78 */
ac97_reg_cached_write(dev, 0x76, 0xabba);
/* Set Clock Access to default */
ac97_reg_cached_write(dev, 0x78, 0x0000);
}
void tr28028_init(ac97_dev *dev)