[alsa-devel] [PATCH 4/7] ice1724 - adding GPIO routines for mask and direction

[pavel.hofman at ivitera.com]

From: Pavel Hofman <pavel.hofman at ivitera.com>

* get/set routines for GPIO mask and direction

Signed-off-by: Pavel Hofman <pavel.hofman at ivitera.com>

diff --git a/pci/ice1712/ice1712.c b/pci/ice1712/ice1712.c
index cecf1ff..56d8d67 100644
--- a/pci/ice1712/ice1712.c
+++ b/pci/ice1712/ice1712.c
@@ -298,6 +298,16 @@ static void snd_ice1712_set_gpio_dir(struct snd_ice1712 *ice, unsigned int data)
 	inb(ICEREG(ice, DATA)); /* dummy read for pci-posting */
 }
 
+static unsigned int snd_ice1712_get_gpio_dir(struct snd_ice1712 *ice)
+{
+	return snd_ice1712_read(ice, ICE1712_IREG_GPIO_DIRECTION);
+}
+
+static unsigned int snd_ice1712_get_gpio_mask(struct snd_ice1712 *ice)
+{
+	return snd_ice1712_read(ice, ICE1712_IREG_GPIO_WRITE_MASK);
+}
+
 static void snd_ice1712_set_gpio_mask(struct snd_ice1712 *ice, unsigned int data)
 {
 	snd_ice1712_write(ice, ICE1712_IREG_GPIO_WRITE_MASK, data);
@@ -2557,7 +2567,9 @@ static int __devinit snd_ice1712_create(struct snd_card *card,
 	mutex_init(&ice->i2c_mutex);
 	mutex_init(&ice->open_mutex);
 	ice->gpio.set_mask = snd_ice1712_set_gpio_mask;
+	ice->gpio.get_mask = snd_ice1712_get_gpio_mask;
 	ice->gpio.set_dir = snd_ice1712_set_gpio_dir;
+	ice->gpio.get_dir = snd_ice1712_get_gpio_dir;
 	ice->gpio.set_data = snd_ice1712_set_gpio_data;
 	ice->gpio.get_data = snd_ice1712_get_gpio_data;
 
diff --git a/pci/ice1712/ice1712.h b/pci/ice1712/ice1712.h
index 9da2dae..b31a59d 100644
--- a/pci/ice1712/ice1712.h
+++ b/pci/ice1712/ice1712.h
@@ -359,7 +359,9 @@ struct snd_ice1712 {
 		unsigned int saved[2];		/* for ewx_i2c */
 		/* operators */
 		void (*set_mask)(struct snd_ice1712 *ice, unsigned int data);
+		unsigned int (*get_mask)(struct snd_ice1712 *ice);
 		void (*set_dir)(struct snd_ice1712 *ice, unsigned int data);
+		unsigned int (*get_dir)(struct snd_ice1712 *ice);
 		void (*set_data)(struct snd_ice1712 *ice, unsigned int data);
 		unsigned int (*get_data)(struct snd_ice1712 *ice);
 		/* misc operators - move to another place? */
@@ -399,6 +401,11 @@ static inline void snd_ice1712_gpio_set_dir(struct snd_ice1712 *ice, unsigned in
 	ice->gpio.set_dir(ice, bits);
 }
 
+static inline unsigned int snd_ice1712_gpio_get_dir(struct snd_ice1712 *ice)
+{
+	return ice->gpio.get_dir(ice);
+}
+
 static inline void snd_ice1712_gpio_set_mask(struct snd_ice1712 *ice, unsigned int bits)
 {
 	ice->gpio.set_mask(ice, bits);
diff --git a/pci/ice1712/ice1724.c b/pci/ice1712/ice1724.c
index af6e001..2213bee 100644
--- a/pci/ice1712/ice1724.c
+++ b/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;
-- 
1.5.6.3