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authorIngo Molnar <mingo@elte.hu>2008-06-16 11:28:04 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-16 11:28:04 +0200
commit7aaaec38fcd9ef3172e69f8c19f20113830a8498 (patch)
treeb12a1c359ad53ae10601f77b3438bb27c3c8f337 /drivers/media/video/cx18/cx18-gpio.c
parent1ac97018169c5a13feaa90d9671f2d6ba2d9e86e (diff)
parent066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff)
Merge branch 'linus' into x86/kconfigtip-x86-kconfig-2008-06-16_09.28_Mon
Diffstat (limited to 'drivers/media/video/cx18/cx18-gpio.c')
-rw-r--r--drivers/media/video/cx18/cx18-gpio.c48
1 files changed, 37 insertions, 11 deletions
diff --git a/drivers/media/video/cx18/cx18-gpio.c b/drivers/media/video/cx18/cx18-gpio.c
index 19253e6b8673..ceb63653c926 100644
--- a/drivers/media/video/cx18/cx18-gpio.c
+++ b/drivers/media/video/cx18/cx18-gpio.c
@@ -44,31 +44,57 @@
* gpio13: cs5345 reset pin
*/
+static void gpio_write(struct cx18 *cx)
+{
+ 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(dir & 0xffff0000, CX18_REG_GPIO_DIR2);
+ write_reg((dir & 0xffff0000) | ((val & 0xffff0000) >> 16),
+ CX18_REG_GPIO_OUT2);
+}
+
void cx18_gpio_init(struct cx18 *cx)
{
- if (cx->card->gpio_init.direction == 0)
+ cx->gpio_dir = cx->card->gpio_init.direction;
+ cx->gpio_val = cx->card->gpio_init.initial_value;
+
+ if (cx->card->tuners[0].tuner == TUNER_XC2028) {
+ cx->gpio_dir |= 1 << cx->card->xceive_pin;
+ cx->gpio_val |= 1 << cx->card->xceive_pin;
+ }
+
+ if (cx->gpio_dir == 0)
return;
- CX18_DEBUG_INFO("GPIO initial dir: %08x out: %08x\n",
- read_reg(CX18_REG_GPIO_DIR1), read_reg(CX18_REG_GPIO_OUT1));
+ CX18_DEBUG_INFO("GPIO initial dir: %08x/%08x out: %08x/%08x\n",
+ read_reg(CX18_REG_GPIO_DIR1), read_reg(CX18_REG_GPIO_DIR2),
+ read_reg(CX18_REG_GPIO_OUT1), read_reg(CX18_REG_GPIO_OUT2));
- /* init output data then direction */
- write_reg(cx->card->gpio_init.direction << 16, CX18_REG_GPIO_DIR1);
- write_reg(0, CX18_REG_GPIO_DIR2);
- write_reg((cx->card->gpio_init.direction << 16) |
- cx->card->gpio_init.initial_value, CX18_REG_GPIO_OUT1);
- write_reg(0, CX18_REG_GPIO_OUT2);
+ gpio_write(cx);
}
/* Xceive tuner reset function */
int cx18_reset_tuner_gpio(void *dev, int cmd, int value)
{
struct i2c_algo_bit_data *algo = dev;
- struct cx18 *cx = algo->data;
-/* int curdir, curout;*/
+ struct cx18_i2c_algo_callback_data *cb_data = algo->data;
+ struct cx18 *cx = cb_data->cx;
if (cmd != XC2028_TUNER_RESET)
return 0;
CX18_DEBUG_INFO("Resetting tuner\n");
+
+ cx->gpio_val &= ~(1 << cx->card->xceive_pin);
+
+ gpio_write(cx);
+ schedule_timeout_interruptible(msecs_to_jiffies(1));
+
+ cx->gpio_val |= 1 << cx->card->xceive_pin;
+ gpio_write(cx);
+ schedule_timeout_interruptible(msecs_to_jiffies(1));
return 0;
}