diff options
| author | Steven Toth <stoth@hauppauge.com> | 2008-06-30 22:17:05 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-07-26 12:54:30 -0300 |
| commit | 6df516905b5c53b306d90be33f9c56434e8db053 (patch) | |
| tree | 7c779e32db8767d666c88e28b3979cbd659771e0 /drivers/media/video/cx23885/cx23885-cards.c | |
| parent | 1ecc5aed1ea426dbb7e5cd9a0c980c14c879277b (diff) | |
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>
Diffstat (limited to 'drivers/media/video/cx23885/cx23885-cards.c')
| -rw-r--r-- | 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 691b35279c2..a19de850955 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) |