1 files changed, 688 insertions, 0 deletions

diff --git a/drivers/media/video/bttv-input.c b/drivers/media/video/bttv-input.c
new file mode 100644
index 0000000..12197f1
--- /dev/null
+++ b/drivers/media/video/bttv-input.c
@@ -0,0 +1,688 @@
+/*
+ *
+ * Copyright (c) 2003 Gerd Knorr
+ * Copyright (c) 2003 Pavel Machek
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+
+#include "bttv.h"
+#include "bttvp.h"
+
+/* ---------------------------------------------------------------------- */
+
+static IR_KEYTAB_TYPE ir_codes_avermedia[IR_KEYTAB_SIZE] = {
+	[ 34 ] = KEY_KP0,
+	[ 40 ] = KEY_KP1,
+	[ 24 ] = KEY_KP2,
+	[ 56 ] = KEY_KP3,
+	[ 36 ] = KEY_KP4,
+	[ 20 ] = KEY_KP5,
+	[ 52 ] = KEY_KP6,
+	[ 44 ] = KEY_KP7,
+	[ 28 ] = KEY_KP8,
+	[ 60 ] = KEY_KP9,
+
+	[ 48 ] = KEY_EJECTCD,     // Unmarked on my controller
+	[  0 ] = KEY_POWER,
+	[ 18 ] = BTN_LEFT,        // DISPLAY/L
+	[ 50 ] = BTN_RIGHT,       // LOOP/R
+	[ 10 ] = KEY_MUTE,
+	[ 38 ] = KEY_RECORD,
+	[ 22 ] = KEY_PAUSE,
+	[ 54 ] = KEY_STOP,
+	[ 30 ] = KEY_VOLUMEDOWN,
+	[ 62 ] = KEY_VOLUMEUP,
+
+	[ 32 ] = KEY_TUNER,       // TV/FM
+	[ 16 ] = KEY_CD,
+	[  8 ] = KEY_VIDEO,
+	[  4 ] = KEY_AUDIO,
+	[ 12 ] = KEY_ZOOM,        // full screen
+	[  2 ] = KEY_INFO,        // preview
+	[ 42 ] = KEY_SEARCH,      // autoscan
+	[ 26 ] = KEY_STOP,        // freeze
+	[ 58 ] = KEY_RECORD,      // capture
+	[  6 ] = KEY_PLAY,        // unmarked
+	[ 46 ] = KEY_RED,         // unmarked
+	[ 14 ] = KEY_GREEN,       // unmarked
+
+	[ 33 ] = KEY_YELLOW,      // unmarked
+	[ 17 ] = KEY_CHANNELDOWN,
+	[ 49 ] = KEY_CHANNELUP,
+	[  1 ] = KEY_BLUE,        // unmarked
+};
+
+/* Matt Jesson <dvb@jesson.eclipse.co.uk */
+static IR_KEYTAB_TYPE ir_codes_avermedia_dvbt[IR_KEYTAB_SIZE] = {
+	[ 0x28 ] = KEY_KP0,         //'0' / 'enter'
+	[ 0x22 ] = KEY_KP1,         //'1'
+	[ 0x12 ] = KEY_KP2,         //'2' / 'up arrow'
+	[ 0x32 ] = KEY_KP3,         //'3'
+	[ 0x24 ] = KEY_KP4,         //'4' / 'left arrow'
+	[ 0x14 ] = KEY_KP5,         //'5'
+	[ 0x34 ] = KEY_KP6,         //'6' / 'right arrow'
+	[ 0x26 ] = KEY_KP7,         //'7'
+	[ 0x16 ] = KEY_KP8,         //'8' / 'down arrow'
+	[ 0x36 ] = KEY_KP9,         //'9'
+
+	[ 0x20 ] = KEY_LIST,        // 'source'
+	[ 0x10 ] = KEY_TEXT,        // 'teletext'
+	[ 0x00 ] = KEY_POWER,       // 'power'
+	[ 0x04 ] = KEY_AUDIO,       // 'audio'
+	[ 0x06 ] = KEY_ZOOM,        // 'full screen'
+	[ 0x18 ] = KEY_VIDEO,       // 'display'
+	[ 0x38 ] = KEY_SEARCH,      // 'loop'
+	[ 0x08 ] = KEY_INFO,        // 'preview'
+	[ 0x2a ] = KEY_REWIND,      // 'backward <<'
+	[ 0x1a ] = KEY_FASTFORWARD, // 'forward >>'
+	[ 0x3a ] = KEY_RECORD,      // 'capture'
+	[ 0x0a ] = KEY_MUTE,        // 'mute'
+	[ 0x2c ] = KEY_RECORD,      // 'record'
+	[ 0x1c ] = KEY_PAUSE,       // 'pause'
+	[ 0x3c ] = KEY_STOP,        // 'stop'
+	[ 0x0c ] = KEY_PLAY,        // 'play'
+	[ 0x2e ] = KEY_RED,         // 'red'
+	[ 0x01 ] = KEY_BLUE,        // 'blue' / 'cancel'
+	[ 0x0e ] = KEY_YELLOW,      // 'yellow' / 'ok'
+	[ 0x21 ] = KEY_GREEN,       // 'green'
+	[ 0x11 ] = KEY_CHANNELDOWN, // 'channel -'
+	[ 0x31 ] = KEY_CHANNELUP,   // 'channel +'
+	[ 0x1e ] = KEY_VOLUMEDOWN,  // 'volume -'
+	[ 0x3e ] = KEY_VOLUMEUP,    // 'volume +'
+};
+
+/* Attila Kondoros <attila.kondoros@chello.hu> */
+static IR_KEYTAB_TYPE ir_codes_apac_viewcomp[IR_KEYTAB_SIZE] = {
+
+	[  1 ] = KEY_KP1,
+	[  2 ] = KEY_KP2,
+	[  3 ] = KEY_KP3,
+	[  4 ] = KEY_KP4,
+	[  5 ] = KEY_KP5,
+	[  6 ] = KEY_KP6,
+	[  7 ] = KEY_KP7,
+	[  8 ] = KEY_KP8,
+	[  9 ] = KEY_KP9,
+	[  0 ] = KEY_KP0,
+	[ 23 ] = KEY_LAST,        // +100
+	[ 10 ] = KEY_LIST,        // recall
+
+
+	[ 28 ] = KEY_TUNER,       // TV/FM
+	[ 21 ] = KEY_SEARCH,      // scan
+	[ 18 ] = KEY_POWER,       // power
+	[ 31 ] = KEY_VOLUMEDOWN,  // vol up
+	[ 27 ] = KEY_VOLUMEUP,    // vol down
+	[ 30 ] = KEY_CHANNELDOWN, // chn up
+	[ 26 ] = KEY_CHANNELUP,   // chn down
+
+	[ 17 ] = KEY_VIDEO,       // video
+	[ 15 ] = KEY_ZOOM,        // full screen
+	[ 19 ] = KEY_MUTE,        // mute/unmute
+	[ 16 ] = KEY_TEXT,        // min
+
+	[ 13 ] = KEY_STOP,        // freeze
+	[ 14 ] = KEY_RECORD,      // record
+	[ 29 ] = KEY_PLAYPAUSE,   // stop
+	[ 25 ] = KEY_PLAY,        // play
+
+	[ 22 ] = KEY_GOTO,        // osd
+	[ 20 ] = KEY_REFRESH,     // default
+	[ 12 ] = KEY_KPPLUS,      // fine tune >>>>
+	[ 24 ] = KEY_KPMINUS      // fine tune <<<<
+};
+
+/* ---------------------------------------------------------------------- */
+
+static IR_KEYTAB_TYPE ir_codes_conceptronic[IR_KEYTAB_SIZE] = {
+
+	[ 30 ] = KEY_POWER,       // power
+	[ 7  ] = KEY_MEDIA,       // source
+	[ 28 ] = KEY_SEARCH,      // scan
+
+/* FIXME: duplicate keycodes?
+ *
+ * These four keys seem to share the same GPIO as CH+, CH-, <<< and >>>
+ * The GPIO values are
+ * 6397fb for both "Scan <" and "CH -",
+ * 639ffb for "Scan >" and "CH+",
+ * 6384fb for "Tune <" and "<<<",
+ * 638cfb for "Tune >" and ">>>", regardless of the mask.
+ *
+ *	[ 23 ] = KEY_BACK,        // fm scan <<
+ *	[ 31 ] = KEY_FORWARD,     // fm scan >>
+ *
+ *	[ 4  ] = KEY_LEFT,        // fm tuning <
+ *	[ 12 ] = KEY_RIGHT,       // fm tuning >
+ *
+ * For now, these four keys are disabled. Pressing them will generate
+ * the CH+/CH-/<<</>>> events
+ */
+
+	[ 3  ] = KEY_TUNER,       // TV/FM
+
+	[ 0  ] = KEY_RECORD,
+	[ 8  ] = KEY_STOP,
+	[ 17 ] = KEY_PLAY,
+
+	[ 26 ] = KEY_PLAYPAUSE,   // freeze
+	[ 25 ] = KEY_ZOOM,        // zoom
+	[ 15 ] = KEY_TEXT,        // min
+
+	[ 1  ] = KEY_KP1,
+	[ 11 ] = KEY_KP2,
+	[ 27 ] = KEY_KP3,
+	[ 5  ] = KEY_KP4,
+	[ 9  ] = KEY_KP5,
+	[ 21 ] = KEY_KP6,
+	[ 6  ] = KEY_KP7,
+	[ 10 ] = KEY_KP8,
+	[ 18 ] = KEY_KP9,
+	[ 2  ] = KEY_KP0,
+	[ 16 ] = KEY_LAST,        // +100
+	[ 19 ] = KEY_LIST,        // recall
+
+	[ 31 ] = KEY_CHANNELUP,   // chn down
+	[ 23 ] = KEY_CHANNELDOWN, // chn up
+	[ 22 ] = KEY_VOLUMEUP,    // vol down
+	[ 20 ] = KEY_VOLUMEDOWN,  // vol up
+
+	[ 4  ] = KEY_KPMINUS,     // <<<
+	[ 14 ] = KEY_SETUP,       // function
+	[ 12 ] = KEY_KPPLUS,      // >>>
+
+	[ 13 ] = KEY_GOTO,        // mts
+	[ 29 ] = KEY_REFRESH,     // reset
+	[ 24 ] = KEY_MUTE         // mute/unmute
+};
+
+static IR_KEYTAB_TYPE ir_codes_nebula[IR_KEYTAB_SIZE] = {
+	[0x00] = KEY_KP0,
+	[0x01] = KEY_KP1,
+	[0x02] = KEY_KP2,
+	[0x03] = KEY_KP3,
+	[0x04] = KEY_KP4,
+	[0x05] = KEY_KP5,
+	[0x06] = KEY_KP6,
+	[0x07] = KEY_KP7,
+	[0x08] = KEY_KP8,
+	[0x09] = KEY_KP9,
+	[0x0a] = KEY_TV,
+	[0x0b] = KEY_AUX,
+	[0x0c] = KEY_DVD,
+	[0x0d] = KEY_POWER,
+	[0x0e] = KEY_MHP,	/* labelled 'Picture' */
+	[0x0f] = KEY_AUDIO,
+	[0x10] = KEY_INFO,
+	[0x11] = KEY_F13,	/* 16:9 */
+	[0x12] = KEY_F14,	/* 14:9 */
+	[0x13] = KEY_EPG,
+	[0x14] = KEY_EXIT,
+	[0x15] = KEY_MENU,
+	[0x16] = KEY_UP,
+	[0x17] = KEY_DOWN,
+	[0x18] = KEY_LEFT,
+	[0x19] = KEY_RIGHT,
+	[0x1a] = KEY_ENTER,
+	[0x1b] = KEY_CHANNELUP,
+	[0x1c] = KEY_CHANNELDOWN,
+	[0x1d] = KEY_VOLUMEUP,
+	[0x1e] = KEY_VOLUMEDOWN,
+	[0x1f] = KEY_RED,
+	[0x20] = KEY_GREEN,
+	[0x21] = KEY_YELLOW,
+	[0x22] = KEY_BLUE,
+	[0x23] = KEY_SUBTITLE,
+	[0x24] = KEY_F15,	/* AD */
+	[0x25] = KEY_TEXT,
+	[0x26] = KEY_MUTE,
+	[0x27] = KEY_REWIND,
+	[0x28] = KEY_STOP,
+	[0x29] = KEY_PLAY,
+	[0x2a] = KEY_FASTFORWARD,
+	[0x2b] = KEY_F16,	/* chapter */
+	[0x2c] = KEY_PAUSE,
+	[0x2d] = KEY_PLAY,
+	[0x2e] = KEY_RECORD,
+	[0x2f] = KEY_F17,	/* picture in picture */
+	[0x30] = KEY_KPPLUS,	/* zoom in */
+	[0x31] = KEY_KPMINUS,	/* zoom out */
+	[0x32] = KEY_F18,	/* capture */
+	[0x33] = KEY_F19,	/* web */
+	[0x34] = KEY_EMAIL,
+	[0x35] = KEY_PHONE,
+	[0x36] = KEY_PC
+};
+
+static int debug;
+module_param(debug, int, 0644);    /* debug level (0,1,2) */
+static int repeat_delay = 500;
+module_param(repeat_delay, int, 0644);
+static int repeat_period = 33;
+module_param(repeat_period, int, 0644);
+
+#define DEVNAME "bttv-input"
+
+/* ---------------------------------------------------------------------- */
+
+static void ir_handle_key(struct bttv *btv)
+{
+	struct bttv_ir *ir = btv->remote;
+	u32 gpio,data;
+
+	/* read gpio value */
+	gpio = bttv_gpio_read(&btv->c);
+	if (ir->polling) {
+		if (ir->last_gpio == gpio)
+			return;
+		ir->last_gpio = gpio;
+	}
+
+	/* extract data */
+	data = ir_extract_bits(gpio, ir->mask_keycode);
+	dprintk(KERN_INFO DEVNAME ": irq gpio=0x%x code=%d | %s%s%s\n",
+		gpio, data,
+		ir->polling               ? "poll"  : "irq",
+		(gpio & ir->mask_keydown) ? " down" : "",
+		(gpio & ir->mask_keyup)   ? " up"   : "");
+
+	if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
+	    (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
+		ir_input_keydown(ir->dev,&ir->ir,data,data);
+	} else {
+		ir_input_nokey(ir->dev,&ir->ir);
+	}
+
+}
+
+void bttv_input_irq(struct bttv *btv)
+{
+	struct bttv_ir *ir = btv->remote;
+
+	if (!ir->polling)
+		ir_handle_key(btv);
+}
+
+static void bttv_input_timer(unsigned long data)
+{
+	struct bttv *btv = (struct bttv*)data;
+	struct bttv_ir *ir = btv->remote;
+	unsigned long timeout;
+
+	ir_handle_key(btv);
+	timeout = jiffies + (ir->polling * HZ / 1000);
+	mod_timer(&ir->timer, timeout);
+}
+
+/* ---------------------------------------------------------------*/
+
+static int rc5_remote_gap = 885;
+module_param(rc5_remote_gap, int, 0644);
+static int rc5_key_timeout = 200;
+module_param(rc5_key_timeout, int, 0644);
+
+#define RC5_START(x)	(((x)>>12)&3)
+#define RC5_TOGGLE(x)	(((x)>>11)&1)
+#define RC5_ADDR(x)	(((x)>>6)&31)
+#define RC5_INSTR(x)	((x)&63)
+
+/* decode raw bit pattern to RC5 code */
+static u32 rc5_decode(unsigned int code)
+{
+	unsigned int org_code = code;
+	unsigned int pair;
+	unsigned int rc5 = 0;
+	int i;
+
+	code = (code << 1) | 1;
+	for (i = 0; i < 14; ++i) {
+		pair = code & 0x3;
+		code >>= 2;
+
+		rc5 <<= 1;
+		switch (pair) {
+		case 0:
+		case 2:
+			break;
+		case 1:
+			rc5 |= 1;
+			break;
+		case 3:
+			dprintk(KERN_WARNING "bad code: %x\n", org_code);
+			return 0;
+		}
+	}
+	dprintk(KERN_WARNING "code=%x, rc5=%x, start=%x, toggle=%x, address=%x, "
+		"instr=%x\n", rc5, org_code, RC5_START(rc5),
+		RC5_TOGGLE(rc5), RC5_ADDR(rc5), RC5_INSTR(rc5));
+	return rc5;
+}
+
+static int bttv_rc5_irq(struct bttv *btv)
+{
+	struct bttv_ir *ir = btv->remote;
+	struct timeval tv;
+	u32 gpio;
+	u32 gap;
+	unsigned long current_jiffies, timeout;
+
+	/* read gpio port */
+	gpio = bttv_gpio_read(&btv->c);
+
+	/* remote IRQ? */
+	if (!(gpio & 0x20))
+		return 0;
+
+	/* get time of bit */
+	current_jiffies = jiffies;
+	do_gettimeofday(&tv);
+
+	/* avoid overflow with gap >1s */
+	if (tv.tv_sec - ir->base_time.tv_sec > 1) {
+		gap = 200000;
+	} else {
+		gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
+		    tv.tv_usec - ir->base_time.tv_usec;
+	}
+
+	/* active code => add bit */
+	if (ir->active) {
+		/* only if in the code (otherwise spurious IRQ or timer
+		   late) */
+		if (ir->last_bit < 28) {
+			ir->last_bit = (gap - rc5_remote_gap / 2) /
+			    rc5_remote_gap;
+			ir->code |= 1 << ir->last_bit;
+		}
+		/* starting new code */
+	} else {
+		ir->active = 1;
+		ir->code = 0;
+		ir->base_time = tv;
+		ir->last_bit = 0;
+
+		timeout = current_jiffies + (500 + 30 * HZ) / 1000;
+		mod_timer(&ir->timer_end, timeout);
+	}
+
+	/* toggle GPIO pin 4 to reset the irq */
+	bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
+	bttv_gpio_write(&btv->c, gpio | (1 << 4));
+	return 1;
+}
+
+
+static void bttv_rc5_timer_end(unsigned long data)
+{
+	struct bttv_ir *ir = (struct bttv_ir *)data;
+	struct timeval tv;
+	unsigned long current_jiffies, timeout;
+	u32 gap;
+
+	/* get time */
+	current_jiffies = jiffies;
+	do_gettimeofday(&tv);
+
+	/* avoid overflow with gap >1s */
+	if (tv.tv_sec - ir->base_time.tv_sec > 1) {
+		gap = 200000;
+	} else {
+		gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
+		    tv.tv_usec - ir->base_time.tv_usec;
+	}
+
+	/* Allow some timmer jitter (RC5 is ~24ms anyway so this is ok) */
+	if (gap < 28000) {
+		dprintk(KERN_WARNING "spurious timer_end\n");
+		return;
+	}
+
+	ir->active = 0;
+	if (ir->last_bit < 20) {
+		/* ignore spurious codes (caused by light/other remotes) */
+		dprintk(KERN_WARNING "short code: %x\n", ir->code);
+	} else {
+		u32 rc5 = rc5_decode(ir->code);
+
+		/* two start bits? */
+		if (RC5_START(rc5) != 3) {
+			dprintk(KERN_WARNING "rc5 start bits invalid: %u\n", RC5_START(rc5));
+
+			/* right address? */
+		} else if (RC5_ADDR(rc5) == 0x0) {
+			u32 toggle = RC5_TOGGLE(rc5);
+			u32 instr = RC5_INSTR(rc5);
+
+			/* Good code, decide if repeat/repress */
+			if (toggle != RC5_TOGGLE(ir->last_rc5) ||
+			    instr != RC5_INSTR(ir->last_rc5)) {
+				dprintk(KERN_WARNING "instruction %x, toggle %x\n", instr,
+					toggle);
+				ir_input_nokey(ir->dev, &ir->ir);
+				ir_input_keydown(ir->dev, &ir->ir, instr,
+						 instr);
+			}
+
+			/* Set/reset key-up timer */
+			timeout = current_jiffies + (500 + rc5_key_timeout
+						     * HZ) / 1000;
+			mod_timer(&ir->timer_keyup, timeout);
+
+			/* Save code for repeat test */
+			ir->last_rc5 = rc5;
+		}
+	}
+}
+
+static void bttv_rc5_timer_keyup(unsigned long data)
+{
+	struct bttv_ir *ir = (struct bttv_ir *)data;
+
+	dprintk(KERN_DEBUG "key released\n");
+	ir_input_nokey(ir->dev, &ir->ir);
+}
+
+/* ---------------------------------------------------------------------- */
+
+int bttv_input_init(struct bttv *btv)
+{
+	struct bttv_ir *ir;
+	IR_KEYTAB_TYPE *ir_codes = NULL;
+	struct input_dev *input_dev;
+	int ir_type = IR_TYPE_OTHER;
+
+	if (!btv->has_remote)
+		return -ENODEV;
+
+	ir = kzalloc(sizeof(*ir),GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!ir || !input_dev) {
+		kfree(ir);
+		input_free_device(input_dev);
+		return -ENOMEM;
+	}
+	memset(ir,0,sizeof(*ir));
+
+	/* detect & configure */
+	switch (btv->c.type) {
+	case BTTV_BOARD_AVERMEDIA:
+	case BTTV_BOARD_AVPHONE98:
+	case BTTV_BOARD_AVERMEDIA98:
+		ir_codes         = ir_codes_avermedia;
+		ir->mask_keycode = 0xf88000;
+		ir->mask_keydown = 0x010000;
+		ir->polling      = 50; // ms
+		break;
+
+	case BTTV_BOARD_AVDVBT_761:
+	case BTTV_BOARD_AVDVBT_771:
+		ir_codes         = ir_codes_avermedia_dvbt;
+		ir->mask_keycode = 0x0f00c0;
+		ir->mask_keydown = 0x000020;
+		ir->polling      = 50; // ms
+		break;
+
+	case BTTV_BOARD_PXELVWPLTVPAK:
+		ir_codes         = ir_codes_pixelview;
+		ir->mask_keycode = 0x003e00;
+		ir->mask_keyup   = 0x010000;
+		ir->polling      = 50; // ms
+		break;
+	case BTTV_BOARD_PV_BT878P_9B:
+	case BTTV_BOARD_PV_BT878P_PLUS:
+		ir_codes         = ir_codes_pixelview;
+		ir->mask_keycode = 0x001f00;
+		ir->mask_keyup   = 0x008000;
+		ir->polling      = 50; // ms
+		break;
+
+	case BTTV_BOARD_WINFAST2000:
+		ir_codes         = ir_codes_winfast;
+		ir->mask_keycode = 0x1f8;
+		break;
+	case BTTV_BOARD_MAGICTVIEW061:
+	case BTTV_BOARD_MAGICTVIEW063:
+		ir_codes         = ir_codes_winfast;
+		ir->mask_keycode = 0x0008e000;
+		ir->mask_keydown = 0x00200000;
+		break;
+	case BTTV_BOARD_APAC_VIEWCOMP:
+		ir_codes         = ir_codes_apac_viewcomp;
+		ir->mask_keycode = 0x001f00;
+		ir->mask_keyup   = 0x008000;
+		ir->polling      = 50; // ms
+		break;
+	case BTTV_BOARD_CONCEPTRONIC_CTVFMI2:
+		ir_codes         = ir_codes_conceptronic;
+		ir->mask_keycode = 0x001F00;
+		ir->mask_keyup   = 0x006000;
+		ir->polling      = 50; // ms
+		break;
+	case BTTV_BOARD_NEBULA_DIGITV:
+		ir_codes = ir_codes_nebula;
+		btv->custom_irq = bttv_rc5_irq;
+		ir->rc5_gpio = 1;
+		break;
+	}
+	if (NULL == ir_codes) {
+		dprintk(KERN_INFO "Ooops: IR config error [card=%d]\n",btv->c.type);
+		kfree(ir);
+		input_free_device(input_dev);
+		return -ENODEV;
+	}
+
+	if (ir->rc5_gpio) {
+		u32 gpio;
+	    	/* enable remote irq */
+		bttv_gpio_inout(&btv->c, (1 << 4), 1 << 4);
+		gpio = bttv_gpio_read(&btv->c);
+		bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
+		bttv_gpio_write(&btv->c, gpio | (1 << 4));
+	} else {
+		/* init hardware-specific stuff */
+		bttv_gpio_inout(&btv->c, ir->mask_keycode | ir->mask_keydown, 0);
+	}
+
+	/* init input device */
+	ir->dev = input_dev;
+
+	snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)",
+		 btv->c.type);
+	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
+		 pci_name(btv->c.pci));
+
+	ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
+	input_dev->name = ir->name;
+	input_dev->phys = ir->phys;
+	input_dev->id.bustype = BUS_PCI;
+	input_dev->id.version = 1;
+	if (btv->c.pci->subsystem_vendor) {
+		input_dev->id.vendor  = btv->c.pci->subsystem_vendor;
+		input_dev->id.product = btv->c.pci->subsystem_device;
+	} else {
+		input_dev->id.vendor  = btv->c.pci->vendor;
+		input_dev->id.product = btv->c.pci->device;
+	}
+	input_dev->cdev.dev = &btv->c.pci->dev;
+
+	btv->remote = ir;
+	if (ir->polling) {
+		init_timer(&ir->timer);
+		ir->timer.function = bttv_input_timer;
+		ir->timer.data     = (unsigned long)btv;
+		ir->timer.expires  = jiffies + HZ;
+		add_timer(&ir->timer);
+	} else if (ir->rc5_gpio) {
+		/* set timer_end for code completion */
+		init_timer(&ir->timer_end);
+		ir->timer_end.function = bttv_rc5_timer_end;
+		ir->timer_end.data = (unsigned long)ir;
+
+		init_timer(&ir->timer_keyup);
+		ir->timer_keyup.function = bttv_rc5_timer_keyup;
+		ir->timer_keyup.data = (unsigned long)ir;
+	}
+
+	/* all done */
+	input_register_device(btv->remote->dev);
+	printk(DEVNAME ": %s detected at %s\n",ir->name,ir->phys);
+
+	/* the remote isn't as bouncy as a keyboard */
+	ir->dev->rep[REP_DELAY] = repeat_delay;
+	ir->dev->rep[REP_PERIOD] = repeat_period;
+
+	return 0;
+}
+
+void bttv_input_fini(struct bttv *btv)
+{
+	if (btv->remote == NULL)
+		return;
+
+	if (btv->remote->polling) {
+		del_timer_sync(&btv->remote->timer);
+		flush_scheduled_work();
+	}
+
+
+	if (btv->remote->rc5_gpio) {
+		u32 gpio;
+
+		del_timer_sync(&btv->remote->timer_end);
+		flush_scheduled_work();
+
+		gpio = bttv_gpio_read(&btv->c);
+		bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
+	}
+
+	input_unregister_device(btv->remote->dev);
+	kfree(btv->remote);
+	btv->remote = NULL;
+}
+
+
+/*
+ * Local variables:
+ * c-basic-offset: 8
+ * End:
+ */