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ALSA: ice1724 - adding GPIO routines for mask and direction

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* get/set routines for GPIO mask and direction

Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Pavel Hofman
2009-09-16 22:25:38 +02:00
committed by Takashi Iwai
parent 42cfa276ae
commit 494703062b
3 changed files with 38 additions and 0 deletions
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19
sound/pci/ice1712/ice1724.c
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@@ -196,6 +196,12 @@ static void snd_vt1724_set_gpio_dir(struct snd_ice1712 *ice, unsigned int data)
inw(ICEREG1724(ice, GPIO_DIRECTION)); /* dummy read for pci-posting */
}
/* get gpio direction 0 = read, 1 = write */
static unsigned int snd_vt1724_get_gpio_dir(struct snd_ice1712 *ice)
{
return inl(ICEREG1724(ice, GPIO_DIRECTION));
}
/* set the gpio mask (0 = writable) */
static void snd_vt1724_set_gpio_mask(struct snd_ice1712 *ice, unsigned int data)
{
@@ -205,6 +211,17 @@ static void snd_vt1724_set_gpio_mask(struct snd_ice1712 *ice, unsigned int data)
inw(ICEREG1724(ice, GPIO_WRITE_MASK)); /* dummy read for pci-posting */
}
static unsigned int snd_vt1724_get_gpio_mask(struct snd_ice1712 *ice)
{
unsigned int mask;
if (!ice->vt1720)
mask = (unsigned int)inb(ICEREG1724(ice, GPIO_WRITE_MASK_22));
else
mask = 0;
mask = (mask << 16) | inw(ICEREG1724(ice, GPIO_WRITE_MASK));
return mask;
}
static void snd_vt1724_set_gpio_data(struct snd_ice1712 *ice, unsigned int data)
{
outw(data, ICEREG1724(ice, GPIO_DATA));
@@ -2434,7 +2451,9 @@ static int __devinit snd_vt1724_create(struct snd_card *card,
mutex_init(&ice->open_mutex);
mutex_init(&ice->i2c_mutex);
ice->gpio.set_mask = snd_vt1724_set_gpio_mask;
ice->gpio.get_mask = snd_vt1724_get_gpio_mask;
ice->gpio.set_dir = snd_vt1724_set_gpio_dir;
ice->gpio.get_dir = snd_vt1724_get_gpio_dir;
ice->gpio.set_data = snd_vt1724_set_gpio_data;
ice->gpio.get_data = snd_vt1724_get_gpio_data;
ice->card = card;