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raspberrypi-kernel
提交 9c45ba10 编写于 作者: T Takashi Iwai 提交者： Jaroslav Kysela
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[ALSA] ice1724 - Clean up ctl callbacks in se.c 

Clean up ctl callbacks of SE-200PCI driver.  Also make sure to check
the value ranges.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>
上级 4e98d6a7
隐藏空白更改
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Showing with 147 addition and 91 deletion
sound/pci/ice1712/se.c
浏览文件 @ 9c45ba10
......@@ -415,134 +415,177 @@ static const struct se200pci_control se200pci_cont[] = {
}
};
static int se200pci_cont_info(struct snd_kcontrol *kc,
struct snd_ctl_elem_info *uinfo)
static int se200pci_get_enum_count(int n)
{
struct snd_ice1712 *ice;
int n;
int c;
const char **member;
int c;
ice = snd_kcontrol_chip(kc);
n = kc->private_value;
if (se200pci_cont[n].type == VOLUME1 ||
se200pci_cont[n].type == VOLUME2) {
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0; /* mute */
uinfo->value.integer.max = 0xff; /* 0dB */
} else if (se200pci_cont[n].type == BOOLEAN) {
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 1;
} else if (se200pci_cont[n].type == ENUM) {
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
member = se200pci_cont[n].member;
if (member == NULL)
return -EINVAL;
for (c = 0; member[c]; c++)
;
uinfo->count = 1;
uinfo->value.enumerated.items = c;
if (uinfo->value.enumerated.item >= c)
uinfo->value.enumerated.item = c - 1;
strcpy(uinfo->value.enumerated.name,
member[uinfo->value.enumerated.item]);
}
member = se200pci_cont[n].member;
if (!member)
return 0;
for (c = 0; member[c]; c++)
;
return c;
}
static int se200pci_cont_volume_info(struct snd_kcontrol *kc,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0; /* mute */
uinfo->value.integer.max = 0xff; /* 0dB */
return 0;
}
static int se200pci_cont_get(struct snd_kcontrol *kc,
struct snd_ctl_elem_value *uc)
#define se200pci_cont_boolean_info snd_ctl_boolean_mono_info
static int se200pci_cont_enum_info(struct snd_kcontrol *kc,
struct snd_ctl_elem_info *uinfo)
{
struct snd_ice1712 *ice;
int n;
int n, c;
ice = snd_kcontrol_chip(kc);
n = kc->private_value;
if (se200pci_cont[n].type == VOLUME1 ||
se200pci_cont[n].type == VOLUME2) {
uc->value.integer.value[0] = ice->spec.se.vol[n].ch1;
uc->value.integer.value[1] = ice->spec.se.vol[n].ch2;
} else if (se200pci_cont[n].type == BOOLEAN ||
se200pci_cont[n].type == ENUM)
uc->value.integer.value[0] = ice->spec.se.vol[n].ch1;
c = se200pci_get_enum_count(n);
if (!c)
return -EINVAL;
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = c;
if (uinfo->value.enumerated.item >= c)
uinfo->value.enumerated.item = c - 1;
strcpy(uinfo->value.enumerated.name,
se200pci_cont[n].member[uinfo->value.enumerated.item]);
return 0;
}
static int se200pci_cont_put(struct snd_kcontrol *kc,
struct snd_ctl_elem_value *uc)
static int se200pci_cont_volume_get(struct snd_kcontrol *kc,
struct snd_ctl_elem_value *uc)
{
struct snd_ice1712 *ice;
int n;
unsigned int vol1, vol2;
int changed;
ice = snd_kcontrol_chip(kc);
n = kc->private_value;
struct snd_ice1712 *ice = snd_kcontrol_chip(kc);
int n = kc->private_value;
uc->value.integer.value[0] = ice->spec.se.vol[n].ch1;
uc->value.integer.value[1] = ice->spec.se.vol[n].ch2;
return 0;
}
changed = 0;
vol1 = 0; vol2 = 0;
if (se200pci_cont[n].type == VOLUME1 ||
se200pci_cont[n].type == VOLUME2) {
vol1 = uc->value.integer.value[0];
vol2 = uc->value.integer.value[1];
if (ice->spec.se.vol[n].ch1 != vol1)
changed = 1;
if (ice->spec.se.vol[n].ch2 != vol2)
changed = 1;
ice->spec.se.vol[n].ch1 = vol1;
ice->spec.se.vol[n].ch2 = vol2;
static int se200pci_cont_boolean_get(struct snd_kcontrol *kc,
struct snd_ctl_elem_value *uc)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kc);
int n = kc->private_value;
uc->value.integer.value[0] = ice->spec.se.vol[n].ch1;
return 0;
}
} else if (se200pci_cont[n].type == BOOLEAN ||
se200pci_cont[n].type == ENUM) {
vol1 = uc->value.integer.value[0];
if (ice->spec.se.vol[n].ch1 != vol1)
changed = 1;
ice->spec.se.vol[n].ch1 = vol1;
}
static int se200pci_cont_enum_get(struct snd_kcontrol *kc,
struct snd_ctl_elem_value *uc)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kc);
int n = kc->private_value;
uc->value.enumerated.item[0] = ice->spec.se.vol[n].ch1;
return 0;
}
static void se200pci_cont_update(struct snd_ice1712 *ice, int n)
{
switch (se200pci_cont[n].target) {
case WM8766:
se200pci_WM8766_set_volume(ice,
se200pci_cont[n].ch, vol1, vol2);
se200pci_cont[n].ch,
ice->spec.se.vol[n].ch1,
ice->spec.se.vol[n].ch2);
break;
case WM8776in:
se200pci_WM8776_set_input_volume(ice, vol1, vol2);
se200pci_WM8776_set_input_volume(ice,
ice->spec.se.vol[n].ch1,
ice->spec.se.vol[n].ch2);
break;
case WM8776out:
se200pci_WM8776_set_output_volume(ice, vol1, vol2);
se200pci_WM8776_set_output_volume(ice,
ice->spec.se.vol[n].ch1,
ice->spec.se.vol[n].ch2);
break;
case WM8776sel:
se200pci_WM8776_set_input_selector(ice, vol1);
se200pci_WM8776_set_input_selector(ice,
ice->spec.se.vol[n].ch1);
break;
case WM8776agc:
se200pci_WM8776_set_agc(ice, vol1);
se200pci_WM8776_set_agc(ice, ice->spec.se.vol[n].ch1);
break;
case WM8776afl:
se200pci_WM8776_set_afl(ice, vol1);
se200pci_WM8776_set_afl(ice, ice->spec.se.vol[n].ch1);
break;
default:
break;
}
}
static int se200pci_cont_volume_put(struct snd_kcontrol *kc,
struct snd_ctl_elem_value *uc)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kc);
int n = kc->private_value;
unsigned int vol1, vol2;
int changed;
changed = 0;
vol1 = uc->value.integer.value[0] & 0xff;
vol2 = uc->value.integer.value[1] & 0xff;
if (ice->spec.se.vol[n].ch1 != vol1) {
ice->spec.se.vol[n].ch1 = vol1;
changed = 1;
}
if (ice->spec.se.vol[n].ch2 != vol2) {
ice->spec.se.vol[n].ch2 = vol2;
changed = 1;
}
if (changed)
se200pci_cont_update(ice, n);
return changed;
}
static int se200pci_cont_boolean_put(struct snd_kcontrol *kc,
struct snd_ctl_elem_value *uc)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kc);
int n = kc->private_value;
unsigned int vol1;
vol1 = !!uc->value.integer.value[0];
if (ice->spec.se.vol[n].ch1 != vol1) {
ice->spec.se.vol[n].ch1 = vol1;
se200pci_cont_update(ice, n);
return 1;
}
return 0;
}
static int se200pci_cont_enum_put(struct snd_kcontrol *kc,
struct snd_ctl_elem_value *uc)
{
struct snd_ice1712 *ice = snd_kcontrol_chip(kc);
int n = kc->private_value;
unsigned int vol1;
vol1 = uc->value.enumerated.item[0];
if (vol1 >= se200pci_get_enum_count(n))
return -EINVAL;
if (ice->spec.se.vol[n].ch1 != vol1) {
ice->spec.se.vol[n].ch1 = vol1;
se200pci_cont_update(ice, n);
return 1;
}
return 0;
}
static const DECLARE_TLV_DB_SCALE(db_scale_gain1, -12750, 50, 1);
static const DECLARE_TLV_DB_SCALE(db_scale_gain2, -10350, 50, 1);
......@@ -554,23 +597,36 @@ static int __devinit se200pci_add_controls(struct snd_ice1712 *ice)
memset(&cont, 0, sizeof(cont));
cont.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
cont.info = se200pci_cont_info;
cont.get = se200pci_cont_get;
cont.put = se200pci_cont_put;
for (i = 0; i < ARRAY_SIZE(se200pci_cont); i++) {
cont.private_value = i;
cont.name = se200pci_cont[i].name;
cont.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
cont.tlv.p = NULL;
if (se200pci_cont[i].type == VOLUME1 ||
se200pci_cont[i].type == VOLUME2) {
switch (se200pci_cont[i].type) {
case VOLUME1:
case VOLUME2:
cont.info = se200pci_cont_volume_info;
cont.get = se200pci_cont_volume_get;
cont.put = se200pci_cont_volume_put;
cont.access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
if (se200pci_cont[i].type == VOLUME1)
cont.tlv.p = db_scale_gain1;
else
cont.tlv.p = db_scale_gain2;
break;
case BOOLEAN:
cont.info = se200pci_cont_boolean_info;
cont.get = se200pci_cont_boolean_get;
cont.put = se200pci_cont_boolean_put;
break;
case ENUM:
cont.info = se200pci_cont_enum_info;
cont.get = se200pci_cont_enum_get;
cont.put = se200pci_cont_enum_put;
break;
default:
snd_BUG();
return -EINVAL;
}
err = snd_ctl_add(ice->card, snd_ctl_new1(&cont, ice));
if (err < 0)
......
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