Simply add the following lines (shamelessly copied from prodigy.c) to your aureon.c
*****cut_here*****
static int aureon_set_headphone_amp(ice1712_t *ice, int enable)
{
unsigned int tmp, tmp2; tmp2 = tmp = snd_ice1712_gpio_read(ice);
if (enable)
tmp |= AUREON_HP_SEL;
else
tmp &= ~ AUREON_HP_SEL;
if (tmp != tmp2) {
snd_ice1712_gpio_write(ice, tmp);
return 1;
}
return 0;
}static int aureon_get_headphone_amp(ice1712_t *ice)
{
unsigned int tmp = snd_ice1712_gpio_read(ice);return ( tmp & AUREON_HP_SEL )!= 0; }
static int aureon_hpamp_info(snd_kcontrol_t *k, snd_ctl_elem_info_t *uinfo)
{
static char *texts[2] = {
"Off", "On"
}; uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = 2;if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1
;
strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]
);
return 0; }
static int aureon_hpamp_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
ice1712_t *ice = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = aureon_get_headphone_amp(ice);
return 0;
}static int aureon_hpamp_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
ice1712_t *ice = snd_kcontrol_chip(kcontrol);
return aureon_set_headphone_amp(ice,ucontrol->value.integer.value[0]);
}
*****cut_here*****
and modify the wm_controls __devinitdata to include:
*****cut_here*****
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Headphone Amplifier",
.info = aureon_hpamp_info,
.get = aureon_hpamp_get,
.put = aureon_hpamp_put
}
*****cut_here*****Seems like currently not every function of the WM8770 codec is implemented in the driver; see the datasheet (http://www.wolfsonmicro.com/uploads/documents/WM8770.pdf) for further information. For instance the standard driver does not support ADC-Muting - adding this feature took me only a few minutes.
Regards, Christoph Haderer
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