V4L/DVB (13100): cx23885: Add IR input keypress handling and enable f…

…or the HVR-1850

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.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/cx23885/Makefile

@@ -1,6 +1,6 @@
 cx23885-objs	:= cx23885-cards.o cx23885-video.o cx23885-vbi.o \
 		    cx23885-core.o cx23885-i2c.o cx23885-dvb.o cx23885-417.o \
-		    cx23885-ioctl.o cx23885-ir.o cx23888-ir.o \
+		    cx23885-ioctl.o cx23885-ir.o cx23885-input.o cx23888-ir.o \
 		    netup-init.o cimax2.o netup-eeprom.o
 
 obj-$(CONFIG_VIDEO_CX23885) += cx23885.o

drivers/media/video/cx23885/cx23885-core.c

@@ -34,6 +34,7 @@
 #include "cimax2.h"
 #include "cx23888-ir.h"
 #include "cx23885-ir.h"
+#include "cx23885-input.h"
 
 MODULE_DESCRIPTION("Driver for cx23885 based TV cards");
 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
@@ -1959,6 +1960,7 @@ static int __devinit cx23885_initdev(struct pci_dev *pci_dev,
 	 * is hooked up by the call to request_irq() above.
 	 */
 	cx23885_ir_pci_int_enable(dev);
+	cx23885_input_init(dev);
 
 	return 0;
 
@@ -1976,6 +1978,7 @@ static void __devexit cx23885_finidev(struct pci_dev *pci_dev)
 	struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
 	struct cx23885_dev *dev = to_cx23885(v4l2_dev);
 
+	cx23885_input_fini(dev);
 	cx23885_ir_fini(dev);
 
 	cx23885_shutdown(dev);