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V4L/DVB: cx23885: For CX23888 IR, configure the IO pin mux IR pins explcitly

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Explicitly configure the IR Tx and IR Rx pins to be driven by the
IR Rx and Tx pads from the AV core for CX23888 IR.

For the HVR-1850 and HVR-1290 configure the IR Tx level inversion,
so the Tx LED is off when idle.

Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls 2010-07-18 20:26:37 -03:00 committed by Mauro Carvalho Chehab
parent 5a28d9a320
commit 81f287da73
1 changed files with 31 additions and 0 deletions
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31
drivers/media/video/cx23885/cx23885-cards.c
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@ -962,6 +962,24 @@ void cx23885_gpio_setup(struct cx23885_dev *dev)
int cx23885_ir_init(struct cx23885_dev *dev)
{
static struct v4l2_subdev_io_pin_config ir_pin_cfg[] = {
{
.flags = V4L2_SUBDEV_IO_PIN_INPUT,
.pin = CX23885_PIN_IR_RX_GPIO19,
.function = CX23885_PAD_IR_RX,
.value = 0,
.strength = CX25840_PIN_DRIVE_MEDIUM,
}, {
.flags = V4L2_SUBDEV_IO_PIN_OUTPUT,
.pin = CX23885_PIN_IR_TX_GPIO20,
.function = CX23885_PAD_IR_TX,
.value = 0,
.strength = CX25840_PIN_DRIVE_MEDIUM,
}
};
const size_t ir_pin_cfg_count = ARRAY_SIZE(ir_pin_cfg);
struct v4l2_subdev_ir_parameters params;
int ret = 0;
switch (dev->board) {
case CX23885_BOARD_HAUPPAUGE_HVR1250:
@ -982,7 +1000,20 @@ int cx23885_ir_init(struct cx23885_dev *dev)
if (ret)
break;
dev->sd_ir = cx23885_find_hw(dev, CX23885_HW_888_IR);
v4l2_subdev_call(dev->sd_cx25840, core, s_io_pin_config,
ir_pin_cfg_count, ir_pin_cfg);
dev->pci_irqmask |= PCI_MSK_IR;
/*
* For these boards we need to invert the Tx output via the
* IR controller to have the LED off while idle
*/
v4l2_subdev_call(dev->sd_ir, ir, tx_g_parameters, &params);
params.enable = false;
params.shutdown = false;
params.invert_level = true;
v4l2_subdev_call(dev->sd_ir, ir, tx_s_parameters, &params);
params.shutdown = true;
v4l2_subdev_call(dev->sd_ir, ir, tx_s_parameters, &params);
break;
case CX23885_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL_EXP:
request_module("ir-kbd-i2c");