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| author | Pavel Hofman <pavel.hofman@ivitera.com> | 2009-09-16 22:25:38 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-09-21 15:46:19 +0200 |
| commit | 494703062b6e6ef5e72364aafc9bcbc172d53dea (patch) | |
| tree | 146331d091b4dba7928244cd1a1ed3dbf0fbad9d /sound/pci/ice1712/ice1724.c | |
| parent | 42cfa276aebd28e5cc4350ff6c7d75f1cb84dd98 (diff) | |
| download | linux-494703062b6e6ef5e72364aafc9bcbc172d53dea.tar.bz2 | |
ALSA: ice1724 - adding GPIO routines for mask and direction
* 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>
Diffstat (limited to 'sound/pci/ice1712/ice1724.c')
| -rw-r--r-- | sound/pci/ice1712/ice1724.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c index af6e00148621..2213beec009a 100644 --- a/sound/pci/ice1712/ice1724.c +++ b/sound/pci/ice1712/ice1724.c @@ -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; |