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authorPavel Hofman <pavel.hofman@ivitera.com>2009-09-16 22:25:38 +0200
committerTakashi Iwai <tiwai@suse.de>2009-09-21 15:46:19 +0200
commit494703062b6e6ef5e72364aafc9bcbc172d53dea (patch)
tree146331d091b4dba7928244cd1a1ed3dbf0fbad9d /sound/pci/ice1712/ice1724.c
parent42cfa276aebd28e5cc4350ff6c7d75f1cb84dd98 (diff)
downloadlinux-stericsson-494703062b6e6ef5e72364aafc9bcbc172d53dea.tar.gz
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.c19
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;