summaryrefslogtreecommitdiffstats
path: root/drivers/media/video/cx18/cx18-gpio.c
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2008-06-14 05:52:39 +0200
committerDavid S. Miller <davem@davemloft.net>2008-06-14 05:52:39 +0200
commit4ae127d1b6c71f9240dd4245f240e6dd8fc98014 (patch)
treeb7aa27b3e0c655f4613fe2146cb57d7f69e421f6 /drivers/media/video/cx18/cx18-gpio.c
parentudp: reorder udp_iter_state to remove padding on 64bit builds (diff)
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 (diff)
downloadlinux-4ae127d1b6c71f9240dd4245f240e6dd8fc98014.tar.xz
linux-4ae127d1b6c71f9240dd4245f240e6dd8fc98014.zip
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/smc911x.c
Diffstat (limited to 'drivers/media/video/cx18/cx18-gpio.c')
-rw-r--r--drivers/media/video/cx18/cx18-gpio.c33
1 files changed, 17 insertions, 16 deletions
diff --git a/drivers/media/video/cx18/cx18-gpio.c b/drivers/media/video/cx18/cx18-gpio.c
index bb8bc86086d0..ceb63653c926 100644
--- a/drivers/media/video/cx18/cx18-gpio.c
+++ b/drivers/media/video/cx18/cx18-gpio.c
@@ -35,9 +35,6 @@
#define CX18_REG_GPIO_OUT2 0xc78104
#define CX18_REG_GPIO_DIR2 0xc7810c
-static u32 gpio_dir;
-static u32 gpio_val;
-
/*
* HVR-1600 GPIO pins, courtesy of Hauppauge:
*
@@ -49,24 +46,29 @@ static u32 gpio_val;
static void gpio_write(struct cx18 *cx)
{
- write_reg((gpio_dir & 0xffff) << 16, CX18_REG_GPIO_DIR1);
- write_reg(((gpio_dir & 0xffff) << 16) | (gpio_val & 0xffff),
+ u32 dir = cx->gpio_dir;
+ u32 val = cx->gpio_val;
+
+ write_reg((dir & 0xffff) << 16, CX18_REG_GPIO_DIR1);
+ write_reg(((dir & 0xffff) << 16) | (val & 0xffff),
CX18_REG_GPIO_OUT1);
- write_reg(gpio_dir & 0xffff0000, CX18_REG_GPIO_DIR2);
- write_reg((gpio_dir & 0xffff0000) | ((gpio_val & 0xffff0000) >> 16),
+ write_reg(dir & 0xffff0000, CX18_REG_GPIO_DIR2);
+ write_reg((dir & 0xffff0000) | ((val & 0xffff0000) >> 16),
CX18_REG_GPIO_OUT2);
}
void cx18_gpio_init(struct cx18 *cx)
{
- gpio_dir = cx->card->gpio_init.direction;
- gpio_val = cx->card->gpio_init.initial_value;
+ cx->gpio_dir = cx->card->gpio_init.direction;
+ cx->gpio_val = cx->card->gpio_init.initial_value;
- if (gpio_dir == 0)
- return;
+ if (cx->card->tuners[0].tuner == TUNER_XC2028) {
+ cx->gpio_dir |= 1 << cx->card->xceive_pin;
+ cx->gpio_val |= 1 << cx->card->xceive_pin;
+ }
- gpio_dir |= 1 << cx->card->xceive_pin;
- gpio_val |= 1 << cx->card->xceive_pin;
+ if (cx->gpio_dir == 0)
+ return;
CX18_DEBUG_INFO("GPIO initial dir: %08x/%08x out: %08x/%08x\n",
read_reg(CX18_REG_GPIO_DIR1), read_reg(CX18_REG_GPIO_DIR2),
@@ -86,13 +88,12 @@ int cx18_reset_tuner_gpio(void *dev, int cmd, int value)
return 0;
CX18_DEBUG_INFO("Resetting tuner\n");
- gpio_dir |= 1 << cx->card->xceive_pin;
- gpio_val &= ~(1 << cx->card->xceive_pin);
+ cx->gpio_val &= ~(1 << cx->card->xceive_pin);
gpio_write(cx);
schedule_timeout_interruptible(msecs_to_jiffies(1));
- gpio_val |= 1 << cx->card->xceive_pin;
+ cx->gpio_val |= 1 << cx->card->xceive_pin;
gpio_write(cx);
schedule_timeout_interruptible(msecs_to_jiffies(1));
return 0;