1 files changed, 0 insertions, 296 deletions
diff --git a/ANDROID_3.4.5/drivers/media/rc/ir-rc6-decoder.c b/ANDROID_3.4.5/drivers/media/rc/ir-rc6-decoder.c
deleted file mode 100644
index 4cfdd7fa..00000000
--- a/ANDROID_3.4.5/drivers/media/rc/ir-rc6-decoder.c
+++ /dev/null
@@ -1,296 +0,0 @@
-/* ir-rc6-decoder.c - A decoder for the RC6 IR protocol
- *
- * Copyright (C) 2010 by David Härdeman <david@hardeman.nu>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include "rc-core-priv.h"
-#include <linux/module.h>
-
-/*
- * This decoder currently supports:
- * RC6-0-16	(standard toggle bit in header)
- * RC6-6A-20	(no toggle bit)
- * RC6-6A-24	(no toggle bit)
- * RC6-6A-32	(MCE version with toggle bit in body)
- */
-
-#define RC6_UNIT		444444	/* nanosecs */
-#define RC6_HEADER_NBITS	4	/* not including toggle bit */
-#define RC6_0_NBITS		16
-#define RC6_6A_32_NBITS		32
-#define RC6_6A_NBITS		128	/* Variable 8..128 */
-#define RC6_PREFIX_PULSE	(6 * RC6_UNIT)
-#define RC6_PREFIX_SPACE	(2 * RC6_UNIT)
-#define RC6_BIT_START		(1 * RC6_UNIT)
-#define RC6_BIT_END		(1 * RC6_UNIT)
-#define RC6_TOGGLE_START	(2 * RC6_UNIT)
-#define RC6_TOGGLE_END		(2 * RC6_UNIT)
-#define RC6_SUFFIX_SPACE	(6 * RC6_UNIT)
-#define RC6_MODE_MASK		0x07	/* for the header bits */
-#define RC6_STARTBIT_MASK	0x08	/* for the header bits */
-#define RC6_6A_MCE_TOGGLE_MASK	0x8000	/* for the body bits */
-#define RC6_6A_LCC_MASK		0xffff0000 /* RC6-6A-32 long customer code mask */
-#define RC6_6A_MCE_CC		0x800f0000 /* MCE customer code */
-#ifndef CHAR_BIT
-#define CHAR_BIT 8	/* Normally in <limits.h> */
-#endif
-
-enum rc6_mode {
-	RC6_MODE_0,
-	RC6_MODE_6A,
-	RC6_MODE_UNKNOWN,
-};
-
-enum rc6_state {
-	STATE_INACTIVE,
-	STATE_PREFIX_SPACE,
-	STATE_HEADER_BIT_START,
-	STATE_HEADER_BIT_END,
-	STATE_TOGGLE_START,
-	STATE_TOGGLE_END,
-	STATE_BODY_BIT_START,
-	STATE_BODY_BIT_END,
-	STATE_FINISHED,
-};
-
-static enum rc6_mode rc6_mode(struct rc6_dec *data)
-{
-	switch (data->header & RC6_MODE_MASK) {
-	case 0:
-		return RC6_MODE_0;
-	case 6:
-		if (!data->toggle)
-			return RC6_MODE_6A;
-		/* fall through */
-	default:
-		return RC6_MODE_UNKNOWN;
-	}
-}
-
-/**
- * ir_rc6_decode() - Decode one RC6 pulse or space
- * @dev:	the struct rc_dev descriptor of the device
- * @ev:		the struct ir_raw_event descriptor of the pulse/space
- *
- * This function returns -EINVAL if the pulse violates the state machine
- */
-static int ir_rc6_decode(struct rc_dev *dev, struct ir_raw_event ev)
-{
-	struct rc6_dec *data = &dev->raw->rc6;
-	u32 scancode;
-	u8 toggle;
-
-	if (!(dev->raw->enabled_protocols & RC_TYPE_RC6))
-		return 0;
-
-	if (!is_timing_event(ev)) {
-		if (ev.reset)
-			data->state = STATE_INACTIVE;
-		return 0;
-	}
-
-	if (!geq_margin(ev.duration, RC6_UNIT, RC6_UNIT / 2))
-		goto out;
-
-again:
-	IR_dprintk(2, "RC6 decode started at state %i (%uus %s)\n",
-		   data->state, TO_US(ev.duration), TO_STR(ev.pulse));
-
-	if (!geq_margin(ev.duration, RC6_UNIT, RC6_UNIT / 2))
-		return 0;
-
-	switch (data->state) {
-
-	case STATE_INACTIVE:
-		if (!ev.pulse)
-			break;
-
-		/* Note: larger margin on first pulse since each RC6_UNIT
-		   is quite short and some hardware takes some time to
-		   adjust to the signal */
-		if (!eq_margin(ev.duration, RC6_PREFIX_PULSE, RC6_UNIT))
-			break;
-
-		data->state = STATE_PREFIX_SPACE;
-		data->count = 0;
-		return 0;
-
-	case STATE_PREFIX_SPACE:
-		if (ev.pulse)
-			break;
-
-		if (!eq_margin(ev.duration, RC6_PREFIX_SPACE, RC6_UNIT / 2))
-			break;
-
-		data->state = STATE_HEADER_BIT_START;
-		data->header = 0;
-		return 0;
-
-	case STATE_HEADER_BIT_START:
-		if (!eq_margin(ev.duration, RC6_BIT_START, RC6_UNIT / 2))
-			break;
-
-		data->header <<= 1;
-		if (ev.pulse)
-			data->header |= 1;
-		data->count++;
-		data->state = STATE_HEADER_BIT_END;
-		return 0;
-
-	case STATE_HEADER_BIT_END:
-		if (!is_transition(&ev, &dev->raw->prev_ev))
-			break;
-
-		if (data->count == RC6_HEADER_NBITS)
-			data->state = STATE_TOGGLE_START;
-		else
-			data->state = STATE_HEADER_BIT_START;
-
-		decrease_duration(&ev, RC6_BIT_END);
-		goto again;
-
-	case STATE_TOGGLE_START:
-		if (!eq_margin(ev.duration, RC6_TOGGLE_START, RC6_UNIT / 2))
-			break;
-
-		data->toggle = ev.pulse;
-		data->state = STATE_TOGGLE_END;
-		return 0;
-
-	case STATE_TOGGLE_END:
-		if (!is_transition(&ev, &dev->raw->prev_ev) ||
-		    !geq_margin(ev.duration, RC6_TOGGLE_END, RC6_UNIT / 2))
-			break;
-
-		if (!(data->header & RC6_STARTBIT_MASK)) {
-			IR_dprintk(1, "RC6 invalid start bit\n");
-			break;
-		}
-
-		data->state = STATE_BODY_BIT_START;
-		decrease_duration(&ev, RC6_TOGGLE_END);
-		data->count = 0;
-		data->body = 0;
-
-		switch (rc6_mode(data)) {
-		case RC6_MODE_0:
-			data->wanted_bits = RC6_0_NBITS;
-			break;
-		case RC6_MODE_6A:
-			data->wanted_bits = RC6_6A_NBITS;
-			break;
-		default:
-			IR_dprintk(1, "RC6 unknown mode\n");
-			goto out;
-		}
-		goto again;
-
-	case STATE_BODY_BIT_START:
-		if (eq_margin(ev.duration, RC6_BIT_START, RC6_UNIT / 2)) {
-			/* Discard LSB's that won't fit in data->body */
-			if (data->count++ < CHAR_BIT * sizeof data->body) {
-				data->body <<= 1;
-				if (ev.pulse)
-					data->body |= 1;
-			}
-			data->state = STATE_BODY_BIT_END;
-			return 0;
-		} else if (RC6_MODE_6A == rc6_mode(data) && !ev.pulse &&
-				geq_margin(ev.duration, RC6_SUFFIX_SPACE, RC6_UNIT / 2)) {
-			data->state = STATE_FINISHED;
-			goto again;
-		}
-		break;
-
-	case STATE_BODY_BIT_END:
-		if (!is_transition(&ev, &dev->raw->prev_ev))
-			break;
-
-		if (data->count == data->wanted_bits)
-			data->state = STATE_FINISHED;
-		else
-			data->state = STATE_BODY_BIT_START;
-
-		decrease_duration(&ev, RC6_BIT_END);
-		goto again;
-
-	case STATE_FINISHED:
-		if (ev.pulse)
-			break;
-
-		switch (rc6_mode(data)) {
-		case RC6_MODE_0:
-			scancode = data->body;
-			toggle = data->toggle;
-			IR_dprintk(1, "RC6(0) scancode 0x%04x (toggle: %u)\n",
-				   scancode, toggle);
-			break;
-		case RC6_MODE_6A:
-			if (data->count > CHAR_BIT * sizeof data->body) {
-				IR_dprintk(1, "RC6 too many (%u) data bits\n",
-					data->count);
-				goto out;
-			}
-
-			scancode = data->body;
-			if (data->count == RC6_6A_32_NBITS &&
-					(scancode & RC6_6A_LCC_MASK) == RC6_6A_MCE_CC) {
-				/* MCE RC */
-				toggle = (scancode & RC6_6A_MCE_TOGGLE_MASK) ? 1 : 0;
-				scancode &= ~RC6_6A_MCE_TOGGLE_MASK;
-			} else {
-				toggle = 0;
-			}
-			IR_dprintk(1, "RC6(6A) scancode 0x%08x (toggle: %u)\n",
-				   scancode, toggle);
-			break;
-		default:
-			IR_dprintk(1, "RC6 unknown mode\n");
-			goto out;
-		}
-
-		rc_keydown(dev, scancode, toggle);
-		data->state = STATE_INACTIVE;
-		return 0;
-	}
-
-out:
-	IR_dprintk(1, "RC6 decode failed at state %i (%uus %s)\n",
-		   data->state, TO_US(ev.duration), TO_STR(ev.pulse));
-	data->state = STATE_INACTIVE;
-	return -EINVAL;
-}
-
-static struct ir_raw_handler rc6_handler = {
-	.protocols	= RC_TYPE_RC6,
-	.decode		= ir_rc6_decode,
-};
-
-static int __init ir_rc6_decode_init(void)
-{
-	ir_raw_handler_register(&rc6_handler);
-
-	printk(KERN_INFO "IR RC6 protocol handler initialized\n");
-	return 0;
-}
-
-static void __exit ir_rc6_decode_exit(void)
-{
-	ir_raw_handler_unregister(&rc6_handler);
-}
-
-module_init(ir_rc6_decode_init);
-module_exit(ir_rc6_decode_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("David Härdeman <david@hardeman.nu>");
-MODULE_DESCRIPTION("RC6 IR protocol decoder");