[mirror_ubuntu-bionic-kernel.git] / drivers / media / video / bttv-input.c

/*
 *
 * 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->dev->name,ir->dev->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(&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:
 */
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	*
	3	* Copyright (c) 2003 Gerd Knorr
	4	* Copyright (c) 2003 Pavel Machek
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	19	*/
	20
	21	#include <linux/module.h>
	22	#include <linux/moduleparam.h>
	23	#include <linux/init.h>
	24	#include <linux/delay.h>
	25	#include <linux/interrupt.h>
	26	#include <linux/input.h>
1da177e4	27
1da177e4	28	#include "bttv.h"
4abdfed5	29	#include "bttvp.h"
1da177e4 LT	30
	31	/* ---------------------------------------------------------------------- */
	32
	33	static IR_KEYTAB_TYPE ir_codes_avermedia[IR_KEYTAB_SIZE] = {
	34	[ 34 ] = KEY_KP0,
	35	[ 40 ] = KEY_KP1,
	36	[ 24 ] = KEY_KP2,
	37	[ 56 ] = KEY_KP3,
	38	[ 36 ] = KEY_KP4,
	39	[ 20 ] = KEY_KP5,
	40	[ 52 ] = KEY_KP6,
	41	[ 44 ] = KEY_KP7,
	42	[ 28 ] = KEY_KP8,
	43	[ 60 ] = KEY_KP9,
	44
	45	[ 48 ] = KEY_EJECTCD, // Unmarked on my controller
	46	[ 0 ] = KEY_POWER,
	47	[ 18 ] = BTN_LEFT, // DISPLAY/L
	48	[ 50 ] = BTN_RIGHT, // LOOP/R
	49	[ 10 ] = KEY_MUTE,
	50	[ 38 ] = KEY_RECORD,
	51	[ 22 ] = KEY_PAUSE,
	52	[ 54 ] = KEY_STOP,
	53	[ 30 ] = KEY_VOLUMEDOWN,
	54	[ 62 ] = KEY_VOLUMEUP,
	55
	56	[ 32 ] = KEY_TUNER, // TV/FM
	57	[ 16 ] = KEY_CD,
	58	[ 8 ] = KEY_VIDEO,
	59	[ 4 ] = KEY_AUDIO,
	60	[ 12 ] = KEY_ZOOM, // full screen
	61	[ 2 ] = KEY_INFO, // preview
	62	[ 42 ] = KEY_SEARCH, // autoscan
	63	[ 26 ] = KEY_STOP, // freeze
	64	[ 58 ] = KEY_RECORD, // capture
	65	[ 6 ] = KEY_PLAY, // unmarked
	66	[ 46 ] = KEY_RED, // unmarked
	67	[ 14 ] = KEY_GREEN, // unmarked
	68
	69	[ 33 ] = KEY_YELLOW, // unmarked
	70	[ 17 ] = KEY_CHANNELDOWN,
	71	[ 49 ] = KEY_CHANNELUP,
	72	[ 1 ] = KEY_BLUE, // unmarked
	73	};
	74
	75	/* Matt Jesson <dvb@jesson.eclipse.co.uk */
	76	static IR_KEYTAB_TYPE ir_codes_avermedia_dvbt[IR_KEYTAB_SIZE] = {
	77	[ 0x28 ] = KEY_KP0, //'0' / 'enter'
	78	[ 0x22 ] = KEY_KP1, //'1'
	79	[ 0x12 ] = KEY_KP2, //'2' / 'up arrow'
	80	[ 0x32 ] = KEY_KP3, //'3'
	81	[ 0x24 ] = KEY_KP4, //'4' / 'left arrow'
	82	[ 0x14 ] = KEY_KP5, //'5'
	83	[ 0x34 ] = KEY_KP6, //'6' / 'right arrow'
	84	[ 0x26 ] = KEY_KP7, //'7'
	85	[ 0x16 ] = KEY_KP8, //'8' / 'down arrow'
	86	[ 0x36 ] = KEY_KP9, //'9'
	87
	88	[ 0x20 ] = KEY_LIST, // 'source'
	89	[ 0x10 ] = KEY_TEXT, // 'teletext'
	90	[ 0x00 ] = KEY_POWER, // 'power'
	91	[ 0x04 ] = KEY_AUDIO, // 'audio'
	92	[ 0x06 ] = KEY_ZOOM, // 'full screen'
	93	[ 0x18 ] = KEY_VIDEO, // 'display'
94	[ 0x38 ] = KEY_SEARCH, // 'loop'
95	[ 0x08 ] = KEY_INFO, // 'preview'
96	[ 0x2a ] = KEY_REWIND, // 'backward <<'
97	[ 0x1a ] = KEY_FASTFORWARD, // 'forward >>'
98	[ 0x3a ] = KEY_RECORD, // 'capture'
99	[ 0x0a ] = KEY_MUTE, // 'mute'
100	[ 0x2c ] = KEY_RECORD, // 'record'
101	[ 0x1c ] = KEY_PAUSE, // 'pause'
102	[ 0x3c ] = KEY_STOP, // 'stop'
103	[ 0x0c ] = KEY_PLAY, // 'play'
104	[ 0x2e ] = KEY_RED, // 'red'
105	[ 0x01 ] = KEY_BLUE, // 'blue' / 'cancel'
106	[ 0x0e ] = KEY_YELLOW, // 'yellow' / 'ok'
107	[ 0x21 ] = KEY_GREEN, // 'green'
108	[ 0x11 ] = KEY_CHANNELDOWN, // 'channel -'
109	[ 0x31 ] = KEY_CHANNELUP, // 'channel +'
110	[ 0x1e ] = KEY_VOLUMEDOWN, // 'volume -'
111	[ 0x3e ] = KEY_VOLUMEUP, // 'volume +'
112	};
113
1da177e4 LT	114	/* Attila Kondoros <attila.kondoros@chello.hu> */
	115	static IR_KEYTAB_TYPE ir_codes_apac_viewcomp[IR_KEYTAB_SIZE] = {
	116
	117	[ 1 ] = KEY_KP1,
	118	[ 2 ] = KEY_KP2,
	119	[ 3 ] = KEY_KP3,
	120	[ 4 ] = KEY_KP4,
	121	[ 5 ] = KEY_KP5,
	122	[ 6 ] = KEY_KP6,
	123	[ 7 ] = KEY_KP7,
	124	[ 8 ] = KEY_KP8,
	125	[ 9 ] = KEY_KP9,
	126	[ 0 ] = KEY_KP0,
	127	[ 23 ] = KEY_LAST, // +100
	128	[ 10 ] = KEY_LIST, // recall
	129
	130
	131	[ 28 ] = KEY_TUNER, // TV/FM
	132	[ 21 ] = KEY_SEARCH, // scan
	133	[ 18 ] = KEY_POWER, // power
	134	[ 31 ] = KEY_VOLUMEDOWN, // vol up
	135	[ 27 ] = KEY_VOLUMEUP, // vol down
	136	[ 30 ] = KEY_CHANNELDOWN, // chn up
	137	[ 26 ] = KEY_CHANNELUP, // chn down
	138
	139	[ 17 ] = KEY_VIDEO, // video
	140	[ 15 ] = KEY_ZOOM, // full screen
	141	[ 19 ] = KEY_MUTE, // mute/unmute
	142	[ 16 ] = KEY_TEXT, // min
	143
	144	[ 13 ] = KEY_STOP, // freeze
	145	[ 14 ] = KEY_RECORD, // record
	146	[ 29 ] = KEY_PLAYPAUSE, // stop
	147	[ 25 ] = KEY_PLAY, // play
	148
	149	[ 22 ] = KEY_GOTO, // osd
	150	[ 20 ] = KEY_REFRESH, // default
	151	[ 12 ] = KEY_KPPLUS, // fine tune >>>>
	152	[ 24 ] = KEY_KPMINUS // fine tune <<<<
	153	};
	154
	155	/* ---------------------------------------------------------------------- */
	156
cc9d8d49 RC	157	static IR_KEYTAB_TYPE ir_codes_conceptronic[IR_KEYTAB_SIZE] = {
	158
	159	[ 30 ] = KEY_POWER, // power
84cd961c	160	[ 7 ] = KEY_MEDIA, // source
cc9d8d49 RC	161	[ 28 ] = KEY_SEARCH, // scan
	162
	163	/* FIXME: duplicate keycodes?
	164	*
	165	* These four keys seem to share the same GPIO as CH+, CH-, <<< and >>>
	166	* The GPIO values are
	167	* 6397fb for both "Scan <" and "CH -",
	168	* 639ffb for "Scan >" and "CH+",
	169	* 6384fb for "Tune <" and "<<<",
	170	* 638cfb for "Tune >" and ">>>", regardless of the mask.
	171	*
	172	* [ 23 ] = KEY_BACK, // fm scan <<
	173	* [ 31 ] = KEY_FORWARD, // fm scan >>
	174	*
	175	* [ 4 ] = KEY_LEFT, // fm tuning <
	176	* [ 12 ] = KEY_RIGHT, // fm tuning >
	177	*
	178	* For now, these four keys are disabled. Pressing them will generate
	179	* the CH+/CH-/<<</>>> events
	180	*/
	181
	182	[ 3 ] = KEY_TUNER, // TV/FM
	183
	184	[ 0 ] = KEY_RECORD,
	185	[ 8 ] = KEY_STOP,
	186	[ 17 ] = KEY_PLAY,
	187
	188	[ 26 ] = KEY_PLAYPAUSE, // freeze
	189	[ 25 ] = KEY_ZOOM, // zoom
	190	[ 15 ] = KEY_TEXT, // min
	191
	192	[ 1 ] = KEY_KP1,
	193	[ 11 ] = KEY_KP2,
	194	[ 27 ] = KEY_KP3,
	195	[ 5 ] = KEY_KP4,
	196	[ 9 ] = KEY_KP5,
	197	[ 21 ] = KEY_KP6,
	198	[ 6 ] = KEY_KP7,
	199	[ 10 ] = KEY_KP8,
	200	[ 18 ] = KEY_KP9,
	201	[ 2 ] = KEY_KP0,
	202	[ 16 ] = KEY_LAST, // +100
	203	[ 19 ] = KEY_LIST, // recall
	204
	205	[ 31 ] = KEY_CHANNELUP, // chn down
	206	[ 23 ] = KEY_CHANNELDOWN, // chn up
	207	[ 22 ] = KEY_VOLUMEUP, // vol down
	208	[ 20 ] = KEY_VOLUMEDOWN, // vol up
	209
	210	[ 4 ] = KEY_KPMINUS, // <<<
	211	[ 14 ] = KEY_SETUP, // function
	212	[ 12 ] = KEY_KPPLUS, // >>>
	213
	214	[ 13 ] = KEY_GOTO, // mts
	215	[ 29 ] = KEY_REFRESH, // reset
	216	[ 24 ] = KEY_MUTE // mute/unmute
	217	};
	218
6c6c0b2c MW	219	static IR_KEYTAB_TYPE ir_codes_nebula[IR_KEYTAB_SIZE] = {
	220	[0x00] = KEY_KP0,
	221	[0x01] = KEY_KP1,
	222	[0x02] = KEY_KP2,
	223	[0x03] = KEY_KP3,
	224	[0x04] = KEY_KP4,
	225	[0x05] = KEY_KP5,
	226	[0x06] = KEY_KP6,
	227	[0x07] = KEY_KP7,
	228	[0x08] = KEY_KP8,
	229	[0x09] = KEY_KP9,
	230	[0x0a] = KEY_TV,
	231	[0x0b] = KEY_AUX,
	232	[0x0c] = KEY_DVD,
	233	[0x0d] = KEY_POWER,
	234	[0x0e] = KEY_MHP, /* labelled 'Picture' */
	235	[0x0f] = KEY_AUDIO,
	236	[0x10] = KEY_INFO,
	237	[0x11] = KEY_F13, /* 16:9 */
	238	[0x12] = KEY_F14, /* 14:9 */
	239	[0x13] = KEY_EPG,
	240	[0x14] = KEY_EXIT,
	241	[0x15] = KEY_MENU,
	242	[0x16] = KEY_UP,
	243	[0x17] = KEY_DOWN,
	244	[0x18] = KEY_LEFT,
	245	[0x19] = KEY_RIGHT,
	246	[0x1a] = KEY_ENTER,
	247	[0x1b] = KEY_CHANNELUP,
	248	[0x1c] = KEY_CHANNELDOWN,
	249	[0x1d] = KEY_VOLUMEUP,
	250	[0x1e] = KEY_VOLUMEDOWN,
	251	[0x1f] = KEY_RED,
	252	[0x20] = KEY_GREEN,
	253	[0x21] = KEY_YELLOW,
	254	[0x22] = KEY_BLUE,
	255	[0x23] = KEY_SUBTITLE,
	256	[0x24] = KEY_F15, /* AD */
	257	[0x25] = KEY_TEXT,
	258	[0x26] = KEY_MUTE,
	259	[0x27] = KEY_REWIND,
	260	[0x28] = KEY_STOP,
	261	[0x29] = KEY_PLAY,
	262	[0x2a] = KEY_FASTFORWARD,
	263	[0x2b] = KEY_F16, /* chapter */
	264	[0x2c] = KEY_PAUSE,
	265	[0x2d] = KEY_PLAY,
	266	[0x2e] = KEY_RECORD,
	267	[0x2f] = KEY_F17, /* picture in picture */
	268	[0x30] = KEY_KPPLUS, /* zoom in */
	269	[0x31] = KEY_KPMINUS, /* zoom out */
	270	[0x32] = KEY_F18, /* capture */
	271	[0x33] = KEY_F19, /* web */
	272	[0x34] = KEY_EMAIL,
	273	[0x35] = KEY_PHONE,
	274	[0x36] = KEY_PC
	275	};
	276
1da177e4 LT	277	static int debug;
1da177e4 LT	278	module_param(debug, int, 0644); /* debug level (0,1,2) */
6c6c0b2c MW	279	static int repeat_delay = 500;
	280	module_param(repeat_delay, int, 0644);
	281	static int repeat_period = 33;
	282	module_param(repeat_period, int, 0644);
1da177e4	283
4abdfed5	284	#define DEVNAME "bttv-input"
1da177e4 LT	285
	286	/* ---------------------------------------------------------------------- */
	287
4abdfed5	288	static void ir_handle_key(struct bttv *btv)
1da177e4	289	{
4abdfed5	290	struct bttv_ir *ir = btv->remote;
1da177e4 LT	291	u32 gpio,data;
	292
	293	/* read gpio value */
4abdfed5	294	gpio = bttv_gpio_read(&btv->c);
1da177e4 LT	295	if (ir->polling) {
	296	if (ir->last_gpio == gpio)
	297	return;
	298	ir->last_gpio = gpio;
	299	}
	300
	301	/* extract data */
	302	data = ir_extract_bits(gpio, ir->mask_keycode);
4abdfed5	303	dprintk(KERN_INFO DEVNAME ": irq gpio=0x%x code=%d \| %s%s%s\n",
1da177e4 LT	304	gpio, data,
	305	ir->polling ? "poll" : "irq",
	306	(gpio & ir->mask_keydown) ? " down" : "",
	307	(gpio & ir->mask_keyup) ? " up" : "");
	308
4abdfed5 RC	309	if ((ir->mask_keydown && (0 != (gpio & ir->mask_keydown))) \|\|
	310	(ir->mask_keyup && (0 == (gpio & ir->mask_keyup)))) {
	311	ir_input_keydown(ir->dev,&ir->ir,data,data);
1da177e4	312	} else {
4abdfed5	313	ir_input_nokey(ir->dev,&ir->ir);
1da177e4	314	}
1da177e4	315
1da177e4 LT	316	}
1da177e4 LT	317
4abdfed5	318	void bttv_input_irq(struct bttv *btv)
1da177e4	319	{
4abdfed5	320	struct bttv_ir *ir = btv->remote;
1da177e4	321
4abdfed5 RC	322	if (!ir->polling)
4abdfed5 RC	323	ir_handle_key(btv);
1da177e4 LT	324	}
1da177e4 LT	325
4abdfed5	326	static void bttv_input_timer(unsigned long data)
1da177e4	327	{
4abdfed5 RC	328	struct bttv btv = (struct bttv)data;
4abdfed5 RC	329	struct bttv_ir *ir = btv->remote;
1da177e4 LT	330	unsigned long timeout;
1da177e4 LT	331
4abdfed5	332	ir_handle_key(btv);
1da177e4 LT	333	timeout = jiffies + (ir->polling * HZ / 1000);
	334	mod_timer(&ir->timer, timeout);
	335	}
	336
6c6c0b2c MW	337	/* ---------------------------------------------------------------*/
	338
	339	static int rc5_remote_gap = 885;
	340	module_param(rc5_remote_gap, int, 0644);
	341	static int rc5_key_timeout = 200;
	342	module_param(rc5_key_timeout, int, 0644);
	343
	344	#define RC5_START(x) (((x)>>12)&3)
	345	#define RC5_TOGGLE(x) (((x)>>11)&1)
	346	#define RC5_ADDR(x) (((x)>>6)&31)
	347	#define RC5_INSTR(x) ((x)&63)
	348
	349	/* decode raw bit pattern to RC5 code */
	350	static u32 rc5_decode(unsigned int code)
	351	{
	352	unsigned int org_code = code;
	353	unsigned int pair;
	354	unsigned int rc5 = 0;
	355	int i;
	356
	357	code = (code << 1) \| 1;
	358	for (i = 0; i < 14; ++i) {
	359	pair = code & 0x3;
	360	code >>= 2;
	361
	362	rc5 <<= 1;
	363	switch (pair) {
	364	case 0:
	365	case 2:
	366	break;
	367	case 1:
	368	rc5 \|= 1;
	369	break;
	370	case 3:
4abdfed5	371	dprintk(KERN_WARNING "bad code: %x\n", org_code);
6c6c0b2c MW	372	return 0;
	373	}
	374	}
4abdfed5	375	dprintk(KERN_WARNING "code=%x, rc5=%x, start=%x, toggle=%x, address=%x, "
6c6c0b2c MW	376	"instr=%x\n", rc5, org_code, RC5_START(rc5),
	377	RC5_TOGGLE(rc5), RC5_ADDR(rc5), RC5_INSTR(rc5));
	378	return rc5;
	379	}
	380
4abdfed5	381	static int bttv_rc5_irq(struct bttv *btv)
6c6c0b2c	382	{
4abdfed5	383	struct bttv_ir *ir = btv->remote;
6c6c0b2c MW	384	struct timeval tv;
	385	u32 gpio;
	386	u32 gap;
	387	unsigned long current_jiffies, timeout;
	388
	389	/* read gpio port */
4abdfed5	390	gpio = bttv_gpio_read(&btv->c);
6c6c0b2c MW	391
	392	/* remote IRQ? */
	393	if (!(gpio & 0x20))
	394	return 0;
	395
	396	/* get time of bit */
	397	current_jiffies = jiffies;
	398	do_gettimeofday(&tv);
	399
	400	/* avoid overflow with gap >1s */
	401	if (tv.tv_sec - ir->base_time.tv_sec > 1) {
	402	gap = 200000;
	403	} else {
	404	gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
	405	tv.tv_usec - ir->base_time.tv_usec;
	406	}
	407
	408	/* active code => add bit */
	409	if (ir->active) {
	410	/* only if in the code (otherwise spurious IRQ or timer
	411	late) */
	412	if (ir->last_bit < 28) {
	413	ir->last_bit = (gap - rc5_remote_gap / 2) /
	414	rc5_remote_gap;
	415	ir->code \|= 1 << ir->last_bit;
	416	}
	417	/* starting new code */
	418	} else {
	419	ir->active = 1;
	420	ir->code = 0;
	421	ir->base_time = tv;
	422	ir->last_bit = 0;
	423
	424	timeout = current_jiffies + (500 + 30 * HZ) / 1000;
	425	mod_timer(&ir->timer_end, timeout);
	426	}
	427
	428	/* toggle GPIO pin 4 to reset the irq */
4abdfed5 RC	429	bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
4abdfed5 RC	430	bttv_gpio_write(&btv->c, gpio \| (1 << 4));
6c6c0b2c MW	431	return 1;
	432	}
	433
4abdfed5 RC	434
4abdfed5 RC	435	static void bttv_rc5_timer_end(unsigned long data)
6c6c0b2c	436	{
4abdfed5	437	struct bttv_ir ir = (struct bttv_ir )data;
6c6c0b2c MW	438	struct timeval tv;
	439	unsigned long current_jiffies, timeout;
	440	u32 gap;
	441
	442	/* get time */
	443	current_jiffies = jiffies;
	444	do_gettimeofday(&tv);
	445
	446	/* avoid overflow with gap >1s */
	447	if (tv.tv_sec - ir->base_time.tv_sec > 1) {
	448	gap = 200000;
	449	} else {
	450	gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
	451	tv.tv_usec - ir->base_time.tv_usec;
	452	}
	453
	454	/* Allow some timmer jitter (RC5 is ~24ms anyway so this is ok) */
	455	if (gap < 28000) {
4abdfed5	456	dprintk(KERN_WARNING "spurious timer_end\n");
6c6c0b2c MW	457	return;
	458	}
	459
	460	ir->active = 0;
	461	if (ir->last_bit < 20) {
	462	/* ignore spurious codes (caused by light/other remotes) */
4abdfed5	463	dprintk(KERN_WARNING "short code: %x\n", ir->code);
6c6c0b2c MW	464	} else {
	465	u32 rc5 = rc5_decode(ir->code);
	466
	467	/* two start bits? */
	468	if (RC5_START(rc5) != 3) {
4abdfed5	469	dprintk(KERN_WARNING "rc5 start bits invalid: %u\n", RC5_START(rc5));
6c6c0b2c MW	470
	471	/* right address? */
	472	} else if (RC5_ADDR(rc5) == 0x0) {
	473	u32 toggle = RC5_TOGGLE(rc5);
	474	u32 instr = RC5_INSTR(rc5);
	475
	476	/* Good code, decide if repeat/repress */
	477	if (toggle != RC5_TOGGLE(ir->last_rc5) \|\|
	478	instr != RC5_INSTR(ir->last_rc5)) {
4abdfed5	479	dprintk(KERN_WARNING "instruction %x, toggle %x\n", instr,
6c6c0b2c	480	toggle);
4abdfed5 RC	481	ir_input_nokey(ir->dev, &ir->ir);
4abdfed5 RC	482	ir_input_keydown(ir->dev, &ir->ir, instr,
6c6c0b2c MW	483	instr);
	484	}
	485
	486	/* Set/reset key-up timer */
	487	timeout = current_jiffies + (500 + rc5_key_timeout
	488	* HZ) / 1000;
	489	mod_timer(&ir->timer_keyup, timeout);
	490
	491	/* Save code for repeat test */
	492	ir->last_rc5 = rc5;
	493	}
	494	}
	495	}
	496
4abdfed5	497	static void bttv_rc5_timer_keyup(unsigned long data)
6c6c0b2c	498	{
4abdfed5	499	struct bttv_ir ir = (struct bttv_ir )data;
6c6c0b2c	500
4abdfed5 RC	501	dprintk(KERN_DEBUG "key released\n");
4abdfed5 RC	502	ir_input_nokey(ir->dev, &ir->ir);
6c6c0b2c MW	503	}
6c6c0b2c MW	504
1da177e4 LT	505	/* ---------------------------------------------------------------------- */
1da177e4 LT	506
4abdfed5	507	int bttv_input_init(struct bttv *btv)
1da177e4	508	{
4abdfed5	509	struct bttv_ir *ir;
1da177e4	510	IR_KEYTAB_TYPE *ir_codes = NULL;
4abdfed5	511	struct input_dev *input_dev;
1da177e4 LT	512	int ir_type = IR_TYPE_OTHER;
1da177e4 LT	513
4abdfed5 RC	514	if (!btv->has_remote)
	515	return -ENODEV;
	516
	517	ir = kzalloc(sizeof(*ir),GFP_KERNEL);
b7df3910 DT	518	input_dev = input_allocate_device();
	519	if (!ir \|\| !input_dev) {
	520	kfree(ir);
	521	input_free_device(input_dev);
1da177e4	522	return -ENOMEM;
b7df3910	523	}
4abdfed5	524	memset(ir,0,sizeof(*ir));
1da177e4 LT	525
1da177e4 LT	526	/* detect & configure */
4abdfed5	527	switch (btv->c.type) {
5a25e84b MCC	528	case BTTV_BOARD_AVERMEDIA:
	529	case BTTV_BOARD_AVPHONE98:
	530	case BTTV_BOARD_AVERMEDIA98:
1da177e4 LT	531	ir_codes = ir_codes_avermedia;
	532	ir->mask_keycode = 0xf88000;
	533	ir->mask_keydown = 0x010000;
	534	ir->polling = 50; // ms
	535	break;
	536
5a25e84b MCC	537	case BTTV_BOARD_AVDVBT_761:
5a25e84b MCC	538	case BTTV_BOARD_AVDVBT_771:
1da177e4 LT	539	ir_codes = ir_codes_avermedia_dvbt;
	540	ir->mask_keycode = 0x0f00c0;
	541	ir->mask_keydown = 0x000020;
	542	ir->polling = 50; // ms
	543	break;
	544
5a25e84b	545	case BTTV_BOARD_PXELVWPLTVPAK:
1da177e4 LT	546	ir_codes = ir_codes_pixelview;
	547	ir->mask_keycode = 0x003e00;
	548	ir->mask_keyup = 0x010000;
	549	ir->polling = 50; // ms
4ac97914	550	break;
5a25e84b MCC	551	case BTTV_BOARD_PV_BT878P_9B:
5a25e84b MCC	552	case BTTV_BOARD_PV_BT878P_PLUS:
1da177e4 LT	553	ir_codes = ir_codes_pixelview;
	554	ir->mask_keycode = 0x001f00;
	555	ir->mask_keyup = 0x008000;
	556	ir->polling = 50; // ms
4ac97914	557	break;
1da177e4	558
5a25e84b	559	case BTTV_BOARD_WINFAST2000:
1da177e4 LT	560	ir_codes = ir_codes_winfast;
	561	ir->mask_keycode = 0x1f8;
	562	break;
5a25e84b MCC	563	case BTTV_BOARD_MAGICTVIEW061:
5a25e84b MCC	564	case BTTV_BOARD_MAGICTVIEW063:
1da177e4 LT	565	ir_codes = ir_codes_winfast;
	566	ir->mask_keycode = 0x0008e000;
	567	ir->mask_keydown = 0x00200000;
	568	break;
5a25e84b	569	case BTTV_BOARD_APAC_VIEWCOMP:
1da177e4 LT	570	ir_codes = ir_codes_apac_viewcomp;
	571	ir->mask_keycode = 0x001f00;
	572	ir->mask_keyup = 0x008000;
	573	ir->polling = 50; // ms
	574	break;
5a25e84b	575	case BTTV_BOARD_CONCEPTRONIC_CTVFMI2:
cc9d8d49 RC	576	ir_codes = ir_codes_conceptronic;
	577	ir->mask_keycode = 0x001F00;
	578	ir->mask_keyup = 0x006000;
	579	ir->polling = 50; // ms
	580	break;
6c6c0b2c MW	581	case BTTV_BOARD_NEBULA_DIGITV:
6c6c0b2c MW	582	ir_codes = ir_codes_nebula;
4abdfed5	583	btv->custom_irq = bttv_rc5_irq;
6c6c0b2c	584	ir->rc5_gpio = 1;
674434c6	585	break;
1da177e4 LT	586	}
1da177e4 LT	587	if (NULL == ir_codes) {
4abdfed5	588	dprintk(KERN_INFO "Ooops: IR config error [card=%d]\n",btv->c.type);
1da177e4	589	kfree(ir);
b7df3910	590	input_free_device(input_dev);
1da177e4 LT	591	return -ENODEV;
	592	}
	593
6c6c0b2c MW	594	if (ir->rc5_gpio) {
6c6c0b2c MW	595	u32 gpio;
674434c6	596	/* enable remote irq */
4abdfed5 RC	597	bttv_gpio_inout(&btv->c, (1 << 4), 1 << 4);
	598	gpio = bttv_gpio_read(&btv->c);
	599	bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
	600	bttv_gpio_write(&btv->c, gpio \| (1 << 4));
6c6c0b2c MW	601	} else {
6c6c0b2c MW	602	/* init hardware-specific stuff */
4abdfed5	603	bttv_gpio_inout(&btv->c, ir->mask_keycode \| ir->mask_keydown, 0);
6c6c0b2c	604	}
1da177e4 LT	605
1da177e4 LT	606	/* init input device */
4abdfed5 RC	607	ir->dev = input_dev;
4abdfed5 RC	608
1da177e4	609	snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)",
4abdfed5	610	btv->c.type);
1da177e4	611	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
4abdfed5	612	pci_name(btv->c.pci));
1da177e4	613
b7df3910 DT	614	ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
	615	input_dev->name = ir->name;
	616	input_dev->phys = ir->phys;
	617	input_dev->id.bustype = BUS_PCI;
	618	input_dev->id.version = 1;
4abdfed5 RC	619	if (btv->c.pci->subsystem_vendor) {
	620	input_dev->id.vendor = btv->c.pci->subsystem_vendor;
	621	input_dev->id.product = btv->c.pci->subsystem_device;
1da177e4	622	} else {
4abdfed5 RC	623	input_dev->id.vendor = btv->c.pci->vendor;
4abdfed5 RC	624	input_dev->id.product = btv->c.pci->device;
1da177e4	625	}
4abdfed5	626	input_dev->cdev.dev = &btv->c.pci->dev;
1da177e4	627
4abdfed5	628	btv->remote = ir;
1da177e4	629	if (ir->polling) {
1da177e4	630	init_timer(&ir->timer);
4abdfed5 RC	631	ir->timer.function = bttv_input_timer;
	632	ir->timer.data = (unsigned long)btv;
	633	ir->timer.expires = jiffies + HZ;
	634	add_timer(&ir->timer);
6c6c0b2c MW	635	} else if (ir->rc5_gpio) {
	636	/* set timer_end for code completion */
	637	init_timer(&ir->timer_end);
4abdfed5	638	ir->timer_end.function = bttv_rc5_timer_end;
6c6c0b2c MW	639	ir->timer_end.data = (unsigned long)ir;
	640
	641	init_timer(&ir->timer_keyup);
4abdfed5	642	ir->timer_keyup.function = bttv_rc5_timer_keyup;
6c6c0b2c	643	ir->timer_keyup.data = (unsigned long)ir;
1da177e4 LT	644	}
	645
	646	/* all done */
4abdfed5 RC	647	input_register_device(btv->remote->dev);
4abdfed5 RC	648	printk(DEVNAME ": %s detected at %s\n",ir->dev->name,ir->dev->phys);
6c6c0b2c MW	649
6c6c0b2c MW	650	/* the remote isn't as bouncy as a keyboard */
4abdfed5 RC	651	ir->dev->rep[REP_DELAY] = repeat_delay;
4abdfed5 RC	652	ir->dev->rep[REP_PERIOD] = repeat_period;
1da177e4 LT	653
	654	return 0;
	655	}
	656
4abdfed5	657	void bttv_input_fini(struct bttv *btv)
1da177e4	658	{
4abdfed5 RC	659	if (btv->remote == NULL)
4abdfed5 RC	660	return;
1da177e4	661
4abdfed5 RC	662	if (btv->remote->polling) {
4abdfed5 RC	663	del_timer_sync(&btv->remote->timer);
1da177e4 LT	664	flush_scheduled_work();
1da177e4 LT	665	}
674434c6	666
4abdfed5 RC	667
4abdfed5 RC	668	if (btv->remote->rc5_gpio) {
6c6c0b2c MW	669	u32 gpio;
6c6c0b2c MW	670
4abdfed5	671	del_timer(&btv->remote->timer_end);
6c6c0b2c MW	672	flush_scheduled_work();
6c6c0b2c MW	673
4abdfed5 RC	674	gpio = bttv_gpio_read(&btv->c);
4abdfed5 RC	675	bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
6c6c0b2c	676	}
1da177e4	677
4abdfed5 RC	678	input_unregister_device(btv->remote->dev);
	679	kfree(btv->remote);
	680	btv->remote = NULL;
1da177e4 LT	681	}
1da177e4 LT	682
1da177e4 LT	683
	684	/*
	685	* Local variables:
	686	* c-basic-offset: 8
	687	* End:
	688	*/