Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6df516...
Commit: 6df516905b5c53b306d90be33f9c56434e8db053
Parent: 1ecc5aed1ea426dbb7e5cd9a0c980c14c879277b
Author: Steven Toth <stoth@hauppauge.com>
AuthorDate: Mon Jun 30 22:17:05 2008 -0300
Committer: Mauro Carvalho Chehab <mchehab@infradead.org>
CommitDate: Sat Jul 26 12:54:30 2008 -0300
V4L/DVB (8470): cx23885: Add DViCO HDTV7 Dual Express tuner callback support.
Ensure the correct tuner gets reset on demand.
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---
drivers/media/video/cx23885/cx23885-cards.c | 40 +++++++++++++++++++--------
1 files changed, 28 insertions(+), 12 deletions(-)
diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c
index 691b352..a19de85 100644
--- a/drivers/media/video/cx23885/cx23885-cards.c
+++ b/drivers/media/video/cx23885/cx23885-cards.c
@@ -326,25 +326,41 @@ int cx23885_tuner_callback(void *priv, int command, int arg)
{
struct cx23885_i2c *bus = priv;
struct cx23885_dev *dev = bus->dev;
+ u32 bitmask = 0;
+
+ if (command != 0) {
+ printk(KERN_ERR "%s(): Unknown command 0x%x.\n",
+ __func__, command);
+ return -EINVAL;
+ }
switch(dev->board) {
case CX23885_BOARD_HAUPPAUGE_HVR1500Q:
- if(command == 0) { /* Tuner Reset Command from xc5000 */
- /* Drive the tuner into reset and out */
- cx_clear(GP0_IO, 0x00000004);
- mdelay(200);
- cx_set(GP0_IO, 0x00000004);
- return 0;
- }
- else {
- printk(KERN_ERR
- "%s(): Unknow command.\n", __func__);
- return -EINVAL;
+ /* Tuner Reset Command from xc5000 */
+ if (command == 0)
+ bitmask = 0x04;
+ break;
+ case CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP:
+ if (command == 0) {
+
+ /* Two identical tuners on two different i2c buses,
+ * we need to reset the correct gpio. */
+ if (bus->nr == 0)
+ bitmask = 0x01;
+ else if (bus->nr == 1)
+ bitmask = 0x04;
}
break;
}
- return 0; /* Should never be here */
+ if (bitmask) {
+ /* Drive the tuner into reset and back out */
+ cx_clear(GP0_IO, bitmask);
+ mdelay(200);
+ cx_set(GP0_IO, bitmask);
+ }
+
+ return 0;
}
void cx23885_gpio_setup(struct cx23885_dev *dev)
--
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