static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift_left = (kcontrol->private_value >> 8) & 0x0f;
int shift_right = (kcontrol->private_value >> 12) & 0x0f;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
int change;
unsigned short old_val, val1, val2;
val1 = ucontrol->value.integer.value[0] & mask;
val2 = ucontrol->value.integer.value[1] & mask;
if (invert) {
val1 = mask - val1;
val2 = mask - val2;
}
val1 <<= shift_left;
val2 <<= shift_right;
spin_lock_irqsave(&chip->lock, flags);
old_val = snd_ad1816a_read(chip, reg);
val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
change = val1 != old_val;
snd_ad1816a_write(chip, reg, val1);
spin_unlock_irqrestore(&chip->lock, flags);
return change;
}
void snd_ad1816a_suspend(struct snd_ad1816a *chip)
{
int reg;
unsigned long flags;
snd_pcm_suspend_all(chip->pcm);
spin_lock_irqsave(&chip->lock, flags);
for (reg = 0; reg < 48; reg++)
chip->image[reg] = snd_ad1816a_read(chip, reg);
spin_unlock_irqrestore(&chip->lock, flags);
}
static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
unsigned short val;
spin_lock_irqsave(&chip->lock, flags);
val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
spin_unlock_irqrestore(&chip->lock, flags);
ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
return 0;
}
static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
unsigned short val;
int change;
if (ucontrol->value.enumerated.item[0] > 6 ||
ucontrol->value.enumerated.item[1] > 6)
return -EINVAL;
val = (ucontrol->value.enumerated.item[0] << 12) |
(ucontrol->value.enumerated.item[1] << 4);
spin_lock_irqsave(&chip->lock, flags);
change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
spin_unlock_irqrestore(&chip->lock, flags);
return change;
}
static int snd_ad1816a_timer_start(struct snd_timer *timer)
{
unsigned short bits;
unsigned long flags;
struct snd_ad1816a *chip = snd_timer_chip(timer);
spin_lock_irqsave(&chip->lock, flags);
bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE);
if (!(bits & AD1816A_TIMER_ENABLE)) {
snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT,
timer->sticks & 0xffff);
snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
AD1816A_TIMER_ENABLE, 0xffff);
}
spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift_left = (kcontrol->private_value >> 8) & 0x0f;
int shift_right = (kcontrol->private_value >> 12) & 0x0f;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
unsigned short val;
spin_lock_irqsave(&chip->lock, flags);
val = snd_ad1816a_read(chip, reg);
ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
spin_unlock_irqrestore(&chip->lock, flags);
if (invert) {
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
}
return 0;
}
static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
int change;
unsigned short old_val, val;
val = (ucontrol->value.integer.value[0] & mask);
if (invert)
val = mask - val;
val <<= shift;
spin_lock_irqsave(&chip->lock, flags);
old_val = snd_ad1816a_read(chip, reg);
val = (old_val & ~(mask << shift)) | val;
change = val != old_val;
snd_ad1816a_write(chip, reg, val);
spin_unlock_irqrestore(&chip->lock, flags);
return change;
}
static int __devinit snd_ad1816a_probe(struct snd_ad1816a *chip)
{
unsigned long flags;
spin_lock_irqsave(&chip->lock, flags);
switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) {
case 0:
chip->hardware = AD1816A_HW_AD1815;
break;
case 1:
chip->hardware = AD1816A_HW_AD18MAX10;
break;
case 3:
chip->hardware = AD1816A_HW_AD1816A;
break;
default:
chip->hardware = AD1816A_HW_AUTO;
}
spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg,
unsigned short mask, unsigned short value)
{
snd_ad1816a_write(chip, reg,
(value & mask) | (snd_ad1816a_read(chip, reg) & ~mask));
}
