[mirror_ubuntu-zesty-kernel.git] / drivers / media / video / bt8xx / 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/init.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/slab.h>

#include "bttv.h"
#include "bttvp.h"


static int ir_debug;
module_param(ir_debug, int, 0644);
static int repeat_delay = 500;
module_param(repeat_delay, int, 0644);
static int repeat_period = 33;
module_param(repeat_period, int, 0644);

static int ir_rc5_remote_gap = 885;
module_param(ir_rc5_remote_gap, int, 0644);
static int ir_rc5_key_timeout = 200;
module_param(ir_rc5_key_timeout, int, 0644);

#undef dprintk
#define dprintk(arg...) do {	\
	if (ir_debug >= 1)	\
		printk(arg);	\
} while (0)

#define DEVNAME "bttv-input"

#define MODULE_NAME "bttv"

/* ---------------------------------------------------------------------- */

static void ir_handle_key(struct bttv *btv)
{
	struct card_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);
	} else {
		/* HACK: Probably, ir->mask_keydown is missing
		   for this board */
		if (btv->c.type == BTTV_BOARD_WINFAST2000)
			ir_input_keydown(ir->dev, &ir->ir, data);

		ir_input_nokey(ir->dev,&ir->ir);
	}

}

static void ir_enltv_handle_key(struct bttv *btv)
{
	struct card_ir *ir = btv->remote;
	u32 gpio, data, keyup;

	/* read gpio value */
	gpio = bttv_gpio_read(&btv->c);

	/* extract data */
	data = ir_extract_bits(gpio, ir->mask_keycode);

	/* Check if it is keyup */
	keyup = (gpio & ir->mask_keyup) ? 1 << 31 : 0;

	if ((ir->last_gpio & 0x7f) != data) {
		dprintk(KERN_INFO DEVNAME ": gpio=0x%x code=%d | %s\n",
			gpio, data,
			(gpio & ir->mask_keyup) ? " up" : "up/down");

		ir_input_keydown(ir->dev, &ir->ir, data);
		if (keyup)
			ir_input_nokey(ir->dev, &ir->ir);
	} else {
		if ((ir->last_gpio & 1 << 31) == keyup)
			return;

		dprintk(KERN_INFO DEVNAME ":(cnt) gpio=0x%x code=%d | %s\n",
			gpio, data,
			(gpio & ir->mask_keyup) ? " up" : "down");

		if (keyup)
			ir_input_nokey(ir->dev, &ir->ir);
		else
			ir_input_keydown(ir->dev, &ir->ir, data);
	}

	ir->last_gpio = data | keyup;
}

void bttv_input_irq(struct bttv *btv)
{
	struct card_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 card_ir *ir = btv->remote;

	if (btv->c.type == BTTV_BOARD_ENLTV_FM_2)
		ir_enltv_handle_key(btv);
	else
		ir_handle_key(btv);
	mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
}

/* ---------------------------------------------------------------*/

static int bttv_rc5_irq(struct bttv *btv)
{
	struct card_ir *ir = btv->remote;
	struct timeval tv;
	u32 gpio;
	u32 gap;
	unsigned long current_jiffies;

	/* 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 - ir_rc5_remote_gap / 2) /
			    ir_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;

		mod_timer(&ir->timer_end,
			  current_jiffies + msecs_to_jiffies(30));
	}

	/* 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_ir_start(struct bttv *btv, struct card_ir *ir)
{
	if (ir->polling) {
		setup_timer(&ir->timer, bttv_input_timer, (unsigned long)btv);
		ir->timer.expires  = jiffies + msecs_to_jiffies(1000);
		add_timer(&ir->timer);
	} else if (ir->rc5_gpio) {
		/* set timer_end for code completion */
		init_timer(&ir->timer_end);
		ir->timer_end.function = ir_rc5_timer_end;
		ir->timer_end.data = (unsigned long)ir;

		init_timer(&ir->timer_keyup);
		ir->timer_keyup.function = ir_rc5_timer_keyup;
		ir->timer_keyup.data = (unsigned long)ir;
		ir->shift_by = 1;
		ir->start = 3;
		ir->addr = 0x0;
		ir->rc5_key_timeout = ir_rc5_key_timeout;
		ir->rc5_remote_gap = ir_rc5_remote_gap;
	}
}

static void bttv_ir_stop(struct bttv *btv)
{
	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));
	}
}

int bttv_input_init(struct bttv *btv)
{
	struct card_ir *ir;
	char *ir_codes = NULL;
	struct input_dev *input_dev;
	u64 ir_type = IR_TYPE_OTHER;
	int err = -ENOMEM;

	if (!btv->has_remote)
		return -ENODEV;

	ir = kzalloc(sizeof(*ir),GFP_KERNEL);
	input_dev = input_allocate_device();
	if (!ir || !input_dev)
		goto err_out_free;

	/* detect & configure */
	switch (btv->c.type) {
	case BTTV_BOARD_AVERMEDIA:
	case BTTV_BOARD_AVPHONE98:
	case BTTV_BOARD_AVERMEDIA98:
		ir_codes         = RC_MAP_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         = RC_MAP_AVERMEDIA_DVBT;
		ir->mask_keycode = 0x0f00c0;
		ir->mask_keydown = 0x000020;
		ir->polling      = 50; // ms
		break;

	case BTTV_BOARD_PXELVWPLTVPAK:
		ir_codes         = RC_MAP_PIXELVIEW;
		ir->mask_keycode = 0x003e00;
		ir->mask_keyup   = 0x010000;
		ir->polling      = 50; // ms
		break;
	case BTTV_BOARD_PV_M4900:
	case BTTV_BOARD_PV_BT878P_9B:
	case BTTV_BOARD_PV_BT878P_PLUS:
		ir_codes         = RC_MAP_PIXELVIEW;
		ir->mask_keycode = 0x001f00;
		ir->mask_keyup   = 0x008000;
		ir->polling      = 50; // ms
		break;

	case BTTV_BOARD_WINFAST2000:
		ir_codes         = RC_MAP_WINFAST;
		ir->mask_keycode = 0x1f8;
		break;
	case BTTV_BOARD_MAGICTVIEW061:
	case BTTV_BOARD_MAGICTVIEW063:
		ir_codes         = RC_MAP_WINFAST;
		ir->mask_keycode = 0x0008e000;
		ir->mask_keydown = 0x00200000;
		break;
	case BTTV_BOARD_APAC_VIEWCOMP:
		ir_codes         = RC_MAP_APAC_VIEWCOMP;
		ir->mask_keycode = 0x001f00;
		ir->mask_keyup   = 0x008000;
		ir->polling      = 50; // ms
		break;
	case BTTV_BOARD_ASKEY_CPH03X:
	case BTTV_BOARD_CONCEPTRONIC_CTVFMI2:
	case BTTV_BOARD_CONTVFMI:
		ir_codes         = RC_MAP_PIXELVIEW;
		ir->mask_keycode = 0x001F00;
		ir->mask_keyup   = 0x006000;
		ir->polling      = 50; // ms
		break;
	case BTTV_BOARD_NEBULA_DIGITV:
		ir_codes = RC_MAP_NEBULA;
		btv->custom_irq = bttv_rc5_irq;
		ir->rc5_gpio = 1;
		break;
	case BTTV_BOARD_MACHTV_MAGICTV:
		ir_codes         = RC_MAP_APAC_VIEWCOMP;
		ir->mask_keycode = 0x001F00;
		ir->mask_keyup   = 0x004000;
		ir->polling      = 50; /* ms */
		break;
	case BTTV_BOARD_KOZUMI_KTV_01C:
		ir_codes         = RC_MAP_PCTV_SEDNA;
		ir->mask_keycode = 0x001f00;
		ir->mask_keyup   = 0x006000;
		ir->polling      = 50; /* ms */
		break;
	case BTTV_BOARD_ENLTV_FM_2:
		ir_codes         = RC_MAP_ENCORE_ENLTV2;
		ir->mask_keycode = 0x00fd00;
		ir->mask_keyup   = 0x000080;
		ir->polling      = 1; /* ms */
		ir->last_gpio    = ir_extract_bits(bttv_gpio_read(&btv->c),
						   ir->mask_keycode);
		break;
	}
	if (NULL == ir_codes) {
		dprintk(KERN_INFO "Ooops: IR config error [card=%d]\n", btv->c.type);
		err = -ENODEV;
		goto err_out_free;
	}

	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));

	err = ir_input_init(input_dev, &ir->ir, ir_type);
	if (err < 0)
		goto err_out_free;

	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->dev.parent = &btv->c.pci->dev;

	btv->remote = ir;
	bttv_ir_start(btv, ir);

	/* all done */
	err = ir_input_register(btv->remote->dev, ir_codes, NULL, MODULE_NAME);
	if (err)
		goto err_out_stop;

	/* 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;

 err_out_stop:
	bttv_ir_stop(btv);
	btv->remote = NULL;
 err_out_free:
	kfree(ir);
	return err;
}

void bttv_input_fini(struct bttv *btv)
{
	if (btv->remote == NULL)
		return;

	bttv_ir_stop(btv);
	ir_input_unregister(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>
1da177e4 LT	22	#include <linux/init.h>
	23	#include <linux/delay.h>
	24	#include <linux/interrupt.h>
	25	#include <linux/input.h>
5a0e3ad6	26	#include <linux/slab.h>
1da177e4	27
1da177e4	28	#include "bttv.h"
4abdfed5	29	#include "bttvp.h"
1da177e4	30
6c6c0b2c	31
7d341a6a MCC	32	static int ir_debug;
7d341a6a MCC	33	module_param(ir_debug, int, 0644);
6c6c0b2c MW	34	static int repeat_delay = 500;
	35	module_param(repeat_delay, int, 0644);
	36	static int repeat_period = 33;
	37	module_param(repeat_period, int, 0644);
1da177e4	38
c408a6f6	39	static int ir_rc5_remote_gap = 885;
9160723e	40	module_param(ir_rc5_remote_gap, int, 0644);
c408a6f6	41	static int ir_rc5_key_timeout = 200;
9160723e HP	42	module_param(ir_rc5_key_timeout, int, 0644);
9160723e HP	43
7d341a6a MCC	44	#undef dprintk
	45	#define dprintk(arg...) do { \
	46	if (ir_debug >= 1) \
	47	printk(arg); \
	48	} while (0)
	49
4abdfed5	50	#define DEVNAME "bttv-input"
1da177e4	51
727e625c MCC	52	#define MODULE_NAME "bttv"
727e625c MCC	53
1da177e4 LT	54	/* ---------------------------------------------------------------------- */
1da177e4 LT	55
4abdfed5	56	static void ir_handle_key(struct bttv *btv)
1da177e4	57	{
9160723e	58	struct card_ir *ir = btv->remote;
1da177e4 LT	59	u32 gpio,data;
	60
	61	/* read gpio value */
4abdfed5	62	gpio = bttv_gpio_read(&btv->c);
1da177e4 LT	63	if (ir->polling) {
	64	if (ir->last_gpio == gpio)
	65	return;
	66	ir->last_gpio = gpio;
	67	}
	68
	69	/* extract data */
	70	data = ir_extract_bits(gpio, ir->mask_keycode);
4abdfed5	71	dprintk(KERN_INFO DEVNAME ": irq gpio=0x%x code=%d \| %s%s%s\n",
1da177e4 LT	72	gpio, data,
	73	ir->polling ? "poll" : "irq",
	74	(gpio & ir->mask_keydown) ? " down" : "",
	75	(gpio & ir->mask_keyup) ? " up" : "");
	76
4abdfed5 RC	77	if ((ir->mask_keydown && (0 != (gpio & ir->mask_keydown))) \|\|
4abdfed5 RC	78	(ir->mask_keyup && (0 == (gpio & ir->mask_keyup)))) {
8573b74a	79	ir_input_keydown(ir->dev, &ir->ir, data);
1da177e4	80	} else {
b3d98135 MCC	81	/* HACK: Probably, ir->mask_keydown is missing
	82	for this board */
	83	if (btv->c.type == BTTV_BOARD_WINFAST2000)
8573b74a	84	ir_input_keydown(ir->dev, &ir->ir, data);
b3d98135	85
4abdfed5	86	ir_input_nokey(ir->dev,&ir->ir);
1da177e4	87	}
1da177e4	88
1da177e4 LT	89	}
1da177e4 LT	90
7d341a6a MCC	91	static void ir_enltv_handle_key(struct bttv *btv)
	92	{
	93	struct card_ir *ir = btv->remote;
	94	u32 gpio, data, keyup;
	95
	96	/* read gpio value */
	97	gpio = bttv_gpio_read(&btv->c);
	98
	99	/* extract data */
	100	data = ir_extract_bits(gpio, ir->mask_keycode);
	101
	102	/* Check if it is keyup */
	103	keyup = (gpio & ir->mask_keyup) ? 1 << 31 : 0;
	104
	105	if ((ir->last_gpio & 0x7f) != data) {
	106	dprintk(KERN_INFO DEVNAME ": gpio=0x%x code=%d \| %s\n",
	107	gpio, data,
	108	(gpio & ir->mask_keyup) ? " up" : "up/down");
	109
8573b74a	110	ir_input_keydown(ir->dev, &ir->ir, data);
7d341a6a MCC	111	if (keyup)
	112	ir_input_nokey(ir->dev, &ir->ir);
	113	} else {
	114	if ((ir->last_gpio & 1 << 31) == keyup)
	115	return;
	116
	117	dprintk(KERN_INFO DEVNAME ":(cnt) gpio=0x%x code=%d \| %s\n",
	118	gpio, data,
	119	(gpio & ir->mask_keyup) ? " up" : "down");
	120
	121	if (keyup)
	122	ir_input_nokey(ir->dev, &ir->ir);
	123	else
8573b74a	124	ir_input_keydown(ir->dev, &ir->ir, data);
7d341a6a MCC	125	}
	126
	127	ir->last_gpio = data \| keyup;
	128	}
	129
4abdfed5	130	void bttv_input_irq(struct bttv *btv)
1da177e4	131	{
9160723e	132	struct card_ir *ir = btv->remote;
1da177e4	133
4abdfed5 RC	134	if (!ir->polling)
4abdfed5 RC	135	ir_handle_key(btv);
1da177e4 LT	136	}
1da177e4 LT	137
4abdfed5	138	static void bttv_input_timer(unsigned long data)
1da177e4	139	{
4abdfed5	140	struct bttv btv = (struct bttv)data;
9160723e	141	struct card_ir *ir = btv->remote;
1da177e4	142
7d341a6a MCC	143	if (btv->c.type == BTTV_BOARD_ENLTV_FM_2)
	144	ir_enltv_handle_key(btv);
	145	else
	146	ir_handle_key(btv);
c1904956	147	mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
1da177e4 LT	148	}
1da177e4 LT	149
6c6c0b2c MW	150	/* ---------------------------------------------------------------*/
6c6c0b2c MW	151
4abdfed5	152	static int bttv_rc5_irq(struct bttv *btv)
6c6c0b2c	153	{
9160723e	154	struct card_ir *ir = btv->remote;
6c6c0b2c MW	155	struct timeval tv;
	156	u32 gpio;
	157	u32 gap;
c1904956	158	unsigned long current_jiffies;
6c6c0b2c MW	159
6c6c0b2c MW	160	/* read gpio port */
4abdfed5	161	gpio = bttv_gpio_read(&btv->c);
6c6c0b2c MW	162
	163	/* remote IRQ? */
	164	if (!(gpio & 0x20))
	165	return 0;
	166
	167	/* get time of bit */
	168	current_jiffies = jiffies;
	169	do_gettimeofday(&tv);
	170
	171	/* avoid overflow with gap >1s */
	172	if (tv.tv_sec - ir->base_time.tv_sec > 1) {
	173	gap = 200000;
	174	} else {
	175	gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
	176	tv.tv_usec - ir->base_time.tv_usec;
	177	}
	178
	179	/* active code => add bit */
	180	if (ir->active) {
	181	/* only if in the code (otherwise spurious IRQ or timer
	182	late) */
	183	if (ir->last_bit < 28) {
9160723e HP	184	ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
9160723e HP	185	ir_rc5_remote_gap;
6c6c0b2c MW	186	ir->code \|= 1 << ir->last_bit;
	187	}
	188	/* starting new code */
	189	} else {
	190	ir->active = 1;
	191	ir->code = 0;
	192	ir->base_time = tv;
	193	ir->last_bit = 0;
	194
c1904956 DT	195	mod_timer(&ir->timer_end,
c1904956 DT	196	current_jiffies + msecs_to_jiffies(30));
6c6c0b2c MW	197	}
	198
	199	/* toggle GPIO pin 4 to reset the irq */
4abdfed5 RC	200	bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
4abdfed5 RC	201	bttv_gpio_write(&btv->c, gpio \| (1 << 4));
6c6c0b2c MW	202	return 1;
	203	}
	204
1da177e4 LT	205	/* ---------------------------------------------------------------------- */
1da177e4 LT	206
9160723e	207	static void bttv_ir_start(struct bttv btv, struct card_ir ir)
b07b4783 DT	208	{
b07b4783 DT	209	if (ir->polling) {
c1904956	210	setup_timer(&ir->timer, bttv_input_timer, (unsigned long)btv);
fe06fe0a	211	ir->timer.expires = jiffies + msecs_to_jiffies(1000);
b07b4783 DT	212	add_timer(&ir->timer);
	213	} else if (ir->rc5_gpio) {
	214	/* set timer_end for code completion */
	215	init_timer(&ir->timer_end);
9160723e	216	ir->timer_end.function = ir_rc5_timer_end;
b07b4783 DT	217	ir->timer_end.data = (unsigned long)ir;
	218
	219	init_timer(&ir->timer_keyup);
9160723e	220	ir->timer_keyup.function = ir_rc5_timer_keyup;
b07b4783	221	ir->timer_keyup.data = (unsigned long)ir;
9160723e HP	222	ir->shift_by = 1;
	223	ir->start = 3;
	224	ir->addr = 0x0;
	225	ir->rc5_key_timeout = ir_rc5_key_timeout;
	226	ir->rc5_remote_gap = ir_rc5_remote_gap;
b07b4783 DT	227	}
	228	}
	229
	230	static void bttv_ir_stop(struct bttv *btv)
	231	{
	232	if (btv->remote->polling) {
	233	del_timer_sync(&btv->remote->timer);
	234	flush_scheduled_work();
	235	}
	236
	237	if (btv->remote->rc5_gpio) {
	238	u32 gpio;
	239
	240	del_timer_sync(&btv->remote->timer_end);
	241	flush_scheduled_work();
	242
	243	gpio = bttv_gpio_read(&btv->c);
	244	bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
	245	}
	246	}
	247
4abdfed5	248	int bttv_input_init(struct bttv *btv)
1da177e4	249	{
9160723e	250	struct card_ir *ir;
02858eed	251	char *ir_codes = NULL;
4abdfed5	252	struct input_dev *input_dev;
971e8298	253	u64 ir_type = IR_TYPE_OTHER;
b07b4783	254	int err = -ENOMEM;
1da177e4	255
4abdfed5 RC	256	if (!btv->has_remote)
	257	return -ENODEV;
	258
	259	ir = kzalloc(sizeof(*ir),GFP_KERNEL);
b7df3910	260	input_dev = input_allocate_device();
b07b4783 DT	261	if (!ir \|\| !input_dev)
b07b4783 DT	262	goto err_out_free;
1da177e4 LT	263
1da177e4 LT	264	/* detect & configure */
4abdfed5	265	switch (btv->c.type) {
5a25e84b MCC	266	case BTTV_BOARD_AVERMEDIA:
	267	case BTTV_BOARD_AVPHONE98:
	268	case BTTV_BOARD_AVERMEDIA98:
02858eed	269	ir_codes = RC_MAP_AVERMEDIA;
1da177e4 LT	270	ir->mask_keycode = 0xf88000;
	271	ir->mask_keydown = 0x010000;
	272	ir->polling = 50; // ms
	273	break;
	274
5a25e84b MCC	275	case BTTV_BOARD_AVDVBT_761:
5a25e84b MCC	276	case BTTV_BOARD_AVDVBT_771:
02858eed	277	ir_codes = RC_MAP_AVERMEDIA_DVBT;
1da177e4 LT	278	ir->mask_keycode = 0x0f00c0;
	279	ir->mask_keydown = 0x000020;
	280	ir->polling = 50; // ms
	281	break;
	282
5a25e84b	283	case BTTV_BOARD_PXELVWPLTVPAK:
02858eed	284	ir_codes = RC_MAP_PIXELVIEW;
1da177e4 LT	285	ir->mask_keycode = 0x003e00;
	286	ir->mask_keyup = 0x010000;
	287	ir->polling = 50; // ms
4ac97914	288	break;
c663155c	289	case BTTV_BOARD_PV_M4900:
5a25e84b MCC	290	case BTTV_BOARD_PV_BT878P_9B:
5a25e84b MCC	291	case BTTV_BOARD_PV_BT878P_PLUS:
02858eed	292	ir_codes = RC_MAP_PIXELVIEW;
1da177e4 LT	293	ir->mask_keycode = 0x001f00;
	294	ir->mask_keyup = 0x008000;
	295	ir->polling = 50; // ms
4ac97914	296	break;
1da177e4	297
5a25e84b	298	case BTTV_BOARD_WINFAST2000:
02858eed	299	ir_codes = RC_MAP_WINFAST;
1da177e4 LT	300	ir->mask_keycode = 0x1f8;
1da177e4 LT	301	break;
5a25e84b MCC	302	case BTTV_BOARD_MAGICTVIEW061:
5a25e84b MCC	303	case BTTV_BOARD_MAGICTVIEW063:
02858eed	304	ir_codes = RC_MAP_WINFAST;
1da177e4 LT	305	ir->mask_keycode = 0x0008e000;
	306	ir->mask_keydown = 0x00200000;
	307	break;
5a25e84b	308	case BTTV_BOARD_APAC_VIEWCOMP:
02858eed	309	ir_codes = RC_MAP_APAC_VIEWCOMP;
1da177e4 LT	310	ir->mask_keycode = 0x001f00;
	311	ir->mask_keyup = 0x008000;
	312	ir->polling = 50; // ms
	313	break;
ed44f66e	314	case BTTV_BOARD_ASKEY_CPH03X:
5a25e84b	315	case BTTV_BOARD_CONCEPTRONIC_CTVFMI2:
4ab2b99b	316	case BTTV_BOARD_CONTVFMI:
02858eed	317	ir_codes = RC_MAP_PIXELVIEW;
cc9d8d49 RC	318	ir->mask_keycode = 0x001F00;
	319	ir->mask_keyup = 0x006000;
	320	ir->polling = 50; // ms
	321	break;
6c6c0b2c	322	case BTTV_BOARD_NEBULA_DIGITV:
02858eed	323	ir_codes = RC_MAP_NEBULA;
4abdfed5	324	btv->custom_irq = bttv_rc5_irq;
6c6c0b2c	325	ir->rc5_gpio = 1;
674434c6	326	break;
2d05ae6b	327	case BTTV_BOARD_MACHTV_MAGICTV:
02858eed	328	ir_codes = RC_MAP_APAC_VIEWCOMP;
2d05ae6b JC	329	ir->mask_keycode = 0x001F00;
	330	ir->mask_keyup = 0x004000;
	331	ir->polling = 50; /* ms */
	332	break;
e80faad3	333	case BTTV_BOARD_KOZUMI_KTV_01C:
02858eed	334	ir_codes = RC_MAP_PCTV_SEDNA;
e80faad3 ML	335	ir->mask_keycode = 0x001f00;
	336	ir->mask_keyup = 0x006000;
	337	ir->polling = 50; /* ms */
	338	break;
7d341a6a	339	case BTTV_BOARD_ENLTV_FM_2:
02858eed	340	ir_codes = RC_MAP_ENCORE_ENLTV2;
7d341a6a MCC	341	ir->mask_keycode = 0x00fd00;
	342	ir->mask_keyup = 0x000080;
	343	ir->polling = 1; /* ms */
	344	ir->last_gpio = ir_extract_bits(bttv_gpio_read(&btv->c),
	345	ir->mask_keycode);
	346	break;
1da177e4 LT	347	}
1da177e4 LT	348	if (NULL == ir_codes) {
b07b4783 DT	349	dprintk(KERN_INFO "Ooops: IR config error [card=%d]\n", btv->c.type);
	350	err = -ENODEV;
	351	goto err_out_free;
1da177e4 LT	352	}
1da177e4 LT	353
6c6c0b2c MW	354	if (ir->rc5_gpio) {
6c6c0b2c MW	355	u32 gpio;
657de3cd	356	/* enable remote irq */
4abdfed5 RC	357	bttv_gpio_inout(&btv->c, (1 << 4), 1 << 4);
	358	gpio = bttv_gpio_read(&btv->c);
	359	bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
	360	bttv_gpio_write(&btv->c, gpio \| (1 << 4));
6c6c0b2c MW	361	} else {
6c6c0b2c MW	362	/* init hardware-specific stuff */
4abdfed5	363	bttv_gpio_inout(&btv->c, ir->mask_keycode \| ir->mask_keydown, 0);
6c6c0b2c	364	}
1da177e4 LT	365
1da177e4 LT	366	/* init input device */
4abdfed5 RC	367	ir->dev = input_dev;
4abdfed5 RC	368
1da177e4	369	snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)",
4abdfed5	370	btv->c.type);
1da177e4	371	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
4abdfed5	372	pci_name(btv->c.pci));
1da177e4	373
579e7d60	374	err = ir_input_init(input_dev, &ir->ir, ir_type);
055cd556 MCC	375	if (err < 0)
	376	goto err_out_free;
	377
b7df3910 DT	378	input_dev->name = ir->name;
	379	input_dev->phys = ir->phys;
	380	input_dev->id.bustype = BUS_PCI;
	381	input_dev->id.version = 1;
4abdfed5 RC	382	if (btv->c.pci->subsystem_vendor) {
	383	input_dev->id.vendor = btv->c.pci->subsystem_vendor;
	384	input_dev->id.product = btv->c.pci->subsystem_device;
1da177e4	385	} else {
4abdfed5 RC	386	input_dev->id.vendor = btv->c.pci->vendor;
4abdfed5 RC	387	input_dev->id.product = btv->c.pci->device;
1da177e4	388	}
2c8a3a33	389	input_dev->dev.parent = &btv->c.pci->dev;
1da177e4	390
4abdfed5	391	btv->remote = ir;
b07b4783	392	bttv_ir_start(btv, ir);
1da177e4 LT	393
1da177e4 LT	394	/* all done */
02858eed	395	err = ir_input_register(btv->remote->dev, ir_codes, NULL, MODULE_NAME);
b07b4783 DT	396	if (err)
b07b4783 DT	397	goto err_out_stop;
6c6c0b2c MW	398
6c6c0b2c MW	399	/* the remote isn't as bouncy as a keyboard */
4abdfed5 RC	400	ir->dev->rep[REP_DELAY] = repeat_delay;
4abdfed5 RC	401	ir->dev->rep[REP_PERIOD] = repeat_period;
1da177e4 LT	402
1da177e4 LT	403	return 0;
b07b4783 DT	404
	405	err_out_stop:
	406	bttv_ir_stop(btv);
	407	btv->remote = NULL;
	408	err_out_free:
b07b4783 DT	409	kfree(ir);
b07b4783 DT	410	return err;
1da177e4 LT	411	}
1da177e4 LT	412
4abdfed5	413	void bttv_input_fini(struct bttv *btv)
1da177e4	414	{
4abdfed5 RC	415	if (btv->remote == NULL)
4abdfed5 RC	416	return;
1da177e4	417
b07b4783	418	bttv_ir_stop(btv);
38ef6aa8	419	ir_input_unregister(btv->remote->dev);
4abdfed5 RC	420	kfree(btv->remote);
4abdfed5 RC	421	btv->remote = NULL;
1da177e4 LT	422	}
1da177e4 LT	423
1da177e4 LT	424
	425	/*
	426	* Local variables:
	427	* c-basic-offset: 8
	428	* End:
	429	*/