[media] cx231xx: Added support for Carraera, Shelby, RDx_253S and VIDEO_GRABBER

Added support for new cx231xx boards - Carraera, Shelby, RDx_253S and
VIDEO_GRABBER.

[mchehab@redhat.com: Fix a merge conflict with BKL removal patches]
Signed-off-by: Palash Bandyopadhyay <palash.bandyopadhyay@conexant.com>
Signed-off-by: Devin Heitmueller <dheitmueller@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 39 insertions, 10 deletions

diff --git a/drivers/media/video/cx231xx/cx231xx-input.c b/drivers/media/video/cx231xx/cx231xx-input.c
index fd099153b746..a0e8bb88d67e 100644
--- a/drivers/media/video/cx231xx/cx231xx-input.c
+++ b/drivers/media/video/cx231xx/cx231xx-input.c
@@ -61,6 +61,7 @@ struct cx231xx_ir_poll_result {
 struct cx231xx_IR {
 	struct cx231xx *dev;
 	struct input_dev *input;
+	struct ir_input_state ir;
 	char name[32];
 	char phys[32];
 
@@ -68,7 +69,9 @@ struct cx231xx_IR {
 	int polling;
 	struct work_struct work;
 	struct timer_list timer;
+	unsigned int last_toggle:1;
 	unsigned int last_readcount;
+	unsigned int repeat_interval;
 
 	int (*get_key) (struct cx231xx_IR *, struct cx231xx_ir_poll_result *);
 };
@@ -80,6 +83,7 @@ struct cx231xx_IR {
 static void cx231xx_ir_handle_key(struct cx231xx_IR *ir)
 {
 	int result;
+	int do_sendkey = 0;
 	struct cx231xx_ir_poll_result poll_result;
 
 	/* read the registers containing the IR status */
@@ -93,23 +97,44 @@ static void cx231xx_ir_handle_key(struct cx231xx_IR *ir)
 		poll_result.toggle_bit, poll_result.read_count,
 		ir->last_readcount, poll_result.rc_data[0]);
 
-	if (poll_result.read_count > 0 &&
-	    poll_result.read_count != ir->last_readcount)
-		ir_keydown(ir->input,
-			   poll_result.rc_data[0],
-			   poll_result.toggle_bit);
-
-	if (ir->dev->chip_id == CHIP_ID_EM2874)
+	if (ir->dev->chip_id == CHIP_ID_EM2874) {
 		/* The em2874 clears the readcount field every time the
 		   register is read.  The em2860/2880 datasheet says that it
 		   is supposed to clear the readcount, but it doesn't.  So with
 		   the em2874, we are looking for a non-zero read count as
 		   opposed to a readcount that is incrementing */
 		ir->last_readcount = 0;
-	else
-		ir->last_readcount = poll_result.read_count;
+	}
+
+	if (poll_result.read_count == 0) {
+		/* The button has not been pressed since the last read */
+	} else if (ir->last_toggle != poll_result.toggle_bit) {
+		/* A button has been pressed */
+		dprintk("button has been pressed\n");
+		ir->last_toggle = poll_result.toggle_bit;
+		ir->repeat_interval = 0;
+		do_sendkey = 1;
+	} else if (poll_result.toggle_bit == ir->last_toggle &&
+		   poll_result.read_count > 0 &&
+		   poll_result.read_count != ir->last_readcount) {
+		/* The button is still being held down */
+		dprintk("button being held down\n");
+
+		/* Debouncer for first keypress */
+		if (ir->repeat_interval++ > 9) {
+			/* Start repeating after 1 second */
+			do_sendkey = 1;
+		}
+	}
 
+	if (do_sendkey) {
+		dprintk("sending keypress\n");
+		ir_input_keydown(ir->input, &ir->ir, poll_result.rc_data[0]);
+		ir_input_nokey(ir->input, &ir->ir);
 	}
+
+	ir->last_readcount = poll_result.read_count;
+	return;
 }
 
 static void ir_timer(unsigned long data)
@@ -175,6 +200,10 @@ int cx231xx_ir_init(struct cx231xx *dev)
 	usb_make_path(dev->udev, ir->phys, sizeof(ir->phys));
 	strlcat(ir->phys, "/input0", sizeof(ir->phys));
 
+	err = ir_input_init(input_dev, &ir->ir, IR_TYPE_OTHER);
+	if (err < 0)
+		goto err_out_free;
+
 	input_dev->name = ir->name;
 	input_dev->phys = ir->phys;
 	input_dev->id.bustype = BUS_USB;
@@ -190,7 +219,7 @@ int cx231xx_ir_init(struct cx231xx *dev)
 	cx231xx_ir_start(ir);
 
 	/* all done */
-	err = __ir_input_register(ir->input, dev->board.ir_codes,
+	err = ir_input_register(ir->input, dev->board.ir_codes,
 				NULL, MODULE_NAME);
 	if (err)
 		goto err_out_stop;