openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

[ALSA] Enable DXS controls for VIA VT82xx 

Modules: VIA82xx driver

The patch enable separate DXS controls of sound function of VIA VT82xx
controller in case DXS volume is not needed for PCM Playback volume
control emulation.

Signed-off-by: Honza Maly <hkmaly@matfyz.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Honza Maly 2005-10-14 18:18:01 +02:00 committed by Jaroslav Kysela
parent 063859c854
commit 00f226d400
1 changed files with 63 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

74
sound/pci/via82xx.c
View File

@ -361,7 +361,8 @@ struct _snd_via82xx {
unsigned int mpu_port_saved;
#endif
unsigned char playback_volume[2]; /* for VIA8233/C/8235; default = 0 */
unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
@ -937,8 +938,8 @@ static int snd_via8233_playback_prepare(snd_pcm_substream_t *substream)
snd_assert((rbits & ~0xfffff) == 0, return -EINVAL);
snd_via82xx_channel_reset(chip, viadev);
snd_via82xx_set_table_ptr(chip, viadev);
outb(chip->playback_volume[0], VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
outb(chip->playback_volume[1], VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
outb(chip->playback_volume[viadev->reg_offset / 0x10][0], VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
outb(chip->playback_volume[viadev->reg_offset / 0x10][1], VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
(runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
rbits | /* rate */
@ -1498,12 +1499,44 @@ static int snd_via8233_dxs_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_in
static int snd_via8233_dxs_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
via82xx_t *chip = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[0];
ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[1];
unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
return 0;
}
static int snd_via8233_pcmdxs_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
via82xx_t *chip = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
return 0;
}
static int snd_via8233_dxs_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
via82xx_t *chip = snd_kcontrol_chip(kcontrol);
unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
unsigned long port = chip->port + 0x10 * idx;
unsigned char val;
int i, change = 0;
for (i = 0; i < 2; i++) {
val = ucontrol->value.integer.value[i];
if (val > VIA_DXS_MAX_VOLUME)
val = VIA_DXS_MAX_VOLUME;
val = VIA_DXS_MAX_VOLUME - val;
change |= val != chip->playback_volume[idx][i];
if (change) {
chip->playback_volume[idx][i] = val;
outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
}
}
return change;
}
static int snd_via8233_pcmdxs_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
via82xx_t *chip = snd_kcontrol_chip(kcontrol);
unsigned int idx;
@ -1515,11 +1548,12 @@ static int snd_via8233_dxs_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_val
if (val > VIA_DXS_MAX_VOLUME)
val = VIA_DXS_MAX_VOLUME;
val = VIA_DXS_MAX_VOLUME - val;
if (val != chip->playback_volume[i]) {
if (val != chip->playback_volume_c[i]) {
change = 1;
chip->playback_volume[i] = val;
chip->playback_volume_c[i] = val;
for (idx = 0; idx < 4; idx++) {
unsigned long port = chip->port + 0x10 * idx;
chip->playback_volume[idx][i] = val;
outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
}
}
@ -1527,10 +1561,19 @@ static int snd_via8233_dxs_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_val
return change;
}
static snd_kcontrol_new_t snd_via8233_dxs_volume_control __devinitdata = {
static snd_kcontrol_new_t snd_via8233_pcmdxs_volume_control __devinitdata = {
.name = "PCM Playback Volume",
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.info = snd_via8233_dxs_volume_info,
.get = snd_via8233_pcmdxs_volume_get,
.put = snd_via8233_pcmdxs_volume_put,
};
static snd_kcontrol_new_t snd_via8233_dxs_volume_control __devinitdata = {
.name = "VIA DXS Playback Volume",
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.count = 4,
.info = snd_via8233_dxs_volume_info,
.get = snd_via8233_dxs_volume_get,
.put = snd_via8233_dxs_volume_put,
};
@ -1723,12 +1766,19 @@ static int __devinit snd_via8233_init_misc(via82xx_t *chip)
strcpy(sid.name, "PCM Playback Volume");
sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
if (! snd_ctl_find_id(chip->card, &sid)) {
snd_printd(KERN_INFO "Using DXS as PCM Playback\n");
err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
if (err < 0)
return err;
}
else /* Using DXS when PCM emulation is enabled is really weird */
{
/* Standalone DXS controls */
err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs_volume_control, chip));
if (err < 0)
return err;
}
}
/* select spdif data slot 10/11 */
pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
@ -1941,8 +1991,10 @@ static int snd_via82xx_chip_init(via82xx_t *chip)
int i, idx;
for (idx = 0; idx < 4; idx++) {
unsigned long port = chip->port + 0x10 * idx;
for (i = 0; i < 2; i++)
outb(chip->playback_volume[i], port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
for (i = 0; i < 2; i++) {
chip->playback_volume[idx][i]=chip->playback_volume_c[i];
outb(chip->playback_volume_c[i], port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
}
}
}