cx23885: Add IR input keypress handling and enable for the HVR-1850
From: Andy Walls <awalls@radix.net>
This changes adds IR Rx keypress input event handling to the CX23885 module.
This change specifically only adds input handling for IR devices implemented as
v4l2_subdevices, using only the pulse width mode (for now), and only with
RC-5 remotes. The V4L-DVB infrastructure is missing too much to support RC-6
mode 6A as used in many media center remotes. The grey Hauppauge RC-5 remote
and HVR-1850 IR receiver work now.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
cx23885: Enable HVR-1850 CX23888 A/V core to get VID_CLK running for IR
From: Andy Walls <awalls@radix.net>
For the IR controller on the CX23888 to work for the HVR-1850 and in
general, the A/V core must be initialized to get the VID_CLK going.
The VID_CLK is the timing reference for the CX23888's integrated
IR controller.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
cx23885: Add skeleton v4l2_subdev for the CX23888 integrated IR controller
From: Andy Walls <awalls@radix.net>
This change adds a skeletal implementation of a v4l2_subdevice to provide
encapsulation and abstraction of the CX23888's integrated consumer infrared
controller. This change also instantiates the cx23888_ir subdev for the
HVR-1850 which has IR hardware physically wired up to a CX23888.
The cx23888_ir subdev code is being written with long-term objectives to:
1. port it to the cx25840 module for the CX2584x, CX2583x, CX23885, & CX231xx
IR controllers
2. possibly port it to the cx18 module for the CX23418 IR controller
3. have the IR subdevice accessed abstractly in the cx23885 module, so the
driver can ignore the difference between the CX23885 and CX23888.
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>