[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);

#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 && (gpio & ir->mask_keydown)) ||
	    (ir->mask_keyup   && !(gpio & ir->mask_keyup))) {
		ir_keydown_notimeout(ir->dev, data, 0);
	} else {
		/* HACK: Probably, ir->mask_keydown is missing
		   for this board */
		if (btv->c.type == BTTV_BOARD_WINFAST2000)
			ir_keydown_notimeout(ir->dev, data, 0);

		ir_keyup(ir->dev);
	}
}

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_keydown_notimeout(ir->dev, data, 0);
		if (keyup)
			ir_keyup(ir->dev);
	} 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_keyup(ir->dev);
		else
			ir_keydown_notimeout(ir->dev, data, 0);
	}

	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;
		ir->shift_by = 1;
		ir->start = 3;
		ir->addr = 0x0;
		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));
	}
}

/*
 * Get_key functions used by I2C remotes
 */

static int get_key_pv951(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
{
	unsigned char b;

	/* poll IR chip */
	if (1 != i2c_master_recv(ir->c, &b, 1)) {
		dprintk(KERN_INFO DEVNAME ": read error\n");
		return -EIO;
	}

	/* ignore 0xaa */
	if (b==0xaa)
		return 0;
	dprintk(KERN_INFO DEVNAME ": key %02x\n", b);

	*ir_key = b;
	*ir_raw = b;
	return 1;
}

/* Instantiate the I2C IR receiver device, if present */
void __devinit init_bttv_i2c_ir(struct bttv *btv)
{
	const unsigned short addr_list[] = {
		0x1a, 0x18, 0x64, 0x30, 0x71,
		I2C_CLIENT_END
	};
	struct i2c_board_info info;

	if (0 != btv->i2c_rc)
		return;

	memset(&info, 0, sizeof(struct i2c_board_info));
	memset(&btv->init_data, 0, sizeof(btv->init_data));
	strlcpy(info.type, "ir_video", I2C_NAME_SIZE);

	switch (btv->c.type) {
	case BTTV_BOARD_PV951:
		btv->init_data.name = "PV951";
		btv->init_data.get_key = get_key_pv951;
		btv->init_data.ir_codes = RC_MAP_PV951;
		info.addr = 0x4b;
		break;
	default:
		/*
		 * The external IR receiver is at i2c address 0x34 (0x35 for
                 * reads).  Future Hauppauge cards will have an internal
                 * receiver at 0x30 (0x31 for reads).  In theory, both can be
                 * fitted, and Hauppauge suggest an external overrides an
                 * internal.
		 * That's why we probe 0x1a (~0x34) first. CB
		 */

		i2c_new_probed_device(&btv->c.i2c_adap, &info, addr_list, NULL);
		return;
	}

	if (btv->init_data.name)
		info.platform_data = &btv->init_data;
	i2c_new_device(&btv->c.i2c_adap, &info);

	return;
}

int __devexit fini_bttv_i2c(struct bttv *btv)
{
	if (0 != btv->i2c_rc)
		return 0;

	return i2c_del_adapter(&btv->c.i2c_adap);
}

int bttv_input_init(struct bttv *btv)
{
	struct card_ir *ir;
	char *ir_codes = NULL;
	struct input_dev *input_dev;
	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));

	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;
}
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);
9160723e	41
7d341a6a MCC	42	#undef dprintk
	43	#define dprintk(arg...) do { \
	44	if (ir_debug >= 1) \
	45	printk(arg); \
	46	} while (0)
	47
4abdfed5	48	#define DEVNAME "bttv-input"
1da177e4	49
727e625c MCC	50	#define MODULE_NAME "bttv"
727e625c MCC	51
1da177e4 LT	52	/* ---------------------------------------------------------------------- */
1da177e4 LT	53
4abdfed5	54	static void ir_handle_key(struct bttv *btv)
1da177e4	55	{
9160723e	56	struct card_ir *ir = btv->remote;
1da177e4 LT	57	u32 gpio,data;
	58
	59	/* read gpio value */
4abdfed5	60	gpio = bttv_gpio_read(&btv->c);
1da177e4 LT	61	if (ir->polling) {
	62	if (ir->last_gpio == gpio)
	63	return;
	64	ir->last_gpio = gpio;
	65	}
	66
	67	/* extract data */
	68	data = ir_extract_bits(gpio, ir->mask_keycode);
4abdfed5	69	dprintk(KERN_INFO DEVNAME ": irq gpio=0x%x code=%d \| %s%s%s\n",
1da177e4 LT	70	gpio, data,
	71	ir->polling ? "poll" : "irq",
	72	(gpio & ir->mask_keydown) ? " down" : "",
	73	(gpio & ir->mask_keyup) ? " up" : "");
	74
62c65031 DH	75	if ((ir->mask_keydown && (gpio & ir->mask_keydown)) \|\|
	76	(ir->mask_keyup && !(gpio & ir->mask_keyup))) {
	77	ir_keydown_notimeout(ir->dev, data, 0);
1da177e4	78	} else {
b3d98135 MCC	79	/* HACK: Probably, ir->mask_keydown is missing
	80	for this board */
	81	if (btv->c.type == BTTV_BOARD_WINFAST2000)
62c65031	82	ir_keydown_notimeout(ir->dev, data, 0);
b3d98135	83
62c65031	84	ir_keyup(ir->dev);
1da177e4	85	}
1da177e4 LT	86	}
1da177e4 LT	87
7d341a6a MCC	88	static void ir_enltv_handle_key(struct bttv *btv)
	89	{
	90	struct card_ir *ir = btv->remote;
	91	u32 gpio, data, keyup;
	92
	93	/* read gpio value */
	94	gpio = bttv_gpio_read(&btv->c);
	95
	96	/* extract data */
	97	data = ir_extract_bits(gpio, ir->mask_keycode);
	98
	99	/* Check if it is keyup */
	100	keyup = (gpio & ir->mask_keyup) ? 1 << 31 : 0;
	101
	102	if ((ir->last_gpio & 0x7f) != data) {
	103	dprintk(KERN_INFO DEVNAME ": gpio=0x%x code=%d \| %s\n",
	104	gpio, data,
	105	(gpio & ir->mask_keyup) ? " up" : "up/down");
	106
62c65031	107	ir_keydown_notimeout(ir->dev, data, 0);
7d341a6a	108	if (keyup)
62c65031	109	ir_keyup(ir->dev);
7d341a6a MCC	110	} else {
	111	if ((ir->last_gpio & 1 << 31) == keyup)
	112	return;
	113
	114	dprintk(KERN_INFO DEVNAME ":(cnt) gpio=0x%x code=%d \| %s\n",
	115	gpio, data,
	116	(gpio & ir->mask_keyup) ? " up" : "down");
	117
	118	if (keyup)
62c65031	119	ir_keyup(ir->dev);
7d341a6a	120	else
62c65031	121	ir_keydown_notimeout(ir->dev, data, 0);
7d341a6a MCC	122	}
	123
	124	ir->last_gpio = data \| keyup;
	125	}
	126
4abdfed5	127	void bttv_input_irq(struct bttv *btv)
1da177e4	128	{
9160723e	129	struct card_ir *ir = btv->remote;
1da177e4	130
4abdfed5 RC	131	if (!ir->polling)
4abdfed5 RC	132	ir_handle_key(btv);
1da177e4 LT	133	}
1da177e4 LT	134
4abdfed5	135	static void bttv_input_timer(unsigned long data)
1da177e4	136	{
4abdfed5	137	struct bttv btv = (struct bttv)data;
9160723e	138	struct card_ir *ir = btv->remote;
1da177e4	139
7d341a6a MCC	140	if (btv->c.type == BTTV_BOARD_ENLTV_FM_2)
	141	ir_enltv_handle_key(btv);
	142	else
	143	ir_handle_key(btv);
c1904956	144	mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
1da177e4 LT	145	}
1da177e4 LT	146
6c6c0b2c MW	147	/* ---------------------------------------------------------------*/
6c6c0b2c MW	148
4abdfed5	149	static int bttv_rc5_irq(struct bttv *btv)
6c6c0b2c	150	{
9160723e	151	struct card_ir *ir = btv->remote;
6c6c0b2c MW	152	struct timeval tv;
	153	u32 gpio;
	154	u32 gap;
c1904956	155	unsigned long current_jiffies;
6c6c0b2c MW	156
6c6c0b2c MW	157	/* read gpio port */
4abdfed5	158	gpio = bttv_gpio_read(&btv->c);
6c6c0b2c MW	159
	160	/* remote IRQ? */
	161	if (!(gpio & 0x20))
	162	return 0;
	163
	164	/* get time of bit */
	165	current_jiffies = jiffies;
	166	do_gettimeofday(&tv);
	167
	168	/* avoid overflow with gap >1s */
	169	if (tv.tv_sec - ir->base_time.tv_sec > 1) {
	170	gap = 200000;
	171	} else {
	172	gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
	173	tv.tv_usec - ir->base_time.tv_usec;
	174	}
	175
	176	/* active code => add bit */
	177	if (ir->active) {
	178	/* only if in the code (otherwise spurious IRQ or timer
	179	late) */
	180	if (ir->last_bit < 28) {
9160723e HP	181	ir->last_bit = (gap - ir_rc5_remote_gap / 2) /
9160723e HP	182	ir_rc5_remote_gap;
6c6c0b2c MW	183	ir->code \|= 1 << ir->last_bit;
	184	}
	185	/* starting new code */
	186	} else {
	187	ir->active = 1;
	188	ir->code = 0;
	189	ir->base_time = tv;
	190	ir->last_bit = 0;
	191
c1904956 DT	192	mod_timer(&ir->timer_end,
c1904956 DT	193	current_jiffies + msecs_to_jiffies(30));
6c6c0b2c MW	194	}
	195
	196	/* toggle GPIO pin 4 to reset the irq */
4abdfed5 RC	197	bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
4abdfed5 RC	198	bttv_gpio_write(&btv->c, gpio \| (1 << 4));
6c6c0b2c MW	199	return 1;
	200	}
	201
1da177e4 LT	202	/* ---------------------------------------------------------------------- */
1da177e4 LT	203
9160723e	204	static void bttv_ir_start(struct bttv btv, struct card_ir ir)
b07b4783 DT	205	{
b07b4783 DT	206	if (ir->polling) {
c1904956	207	setup_timer(&ir->timer, bttv_input_timer, (unsigned long)btv);
fe06fe0a	208	ir->timer.expires = jiffies + msecs_to_jiffies(1000);
b07b4783 DT	209	add_timer(&ir->timer);
	210	} else if (ir->rc5_gpio) {
	211	/* set timer_end for code completion */
	212	init_timer(&ir->timer_end);
9160723e	213	ir->timer_end.function = ir_rc5_timer_end;
b07b4783	214	ir->timer_end.data = (unsigned long)ir;
9160723e HP	215	ir->shift_by = 1;
	216	ir->start = 3;
	217	ir->addr = 0x0;
9160723e	218	ir->rc5_remote_gap = ir_rc5_remote_gap;
b07b4783 DT	219	}
	220	}
	221
	222	static void bttv_ir_stop(struct bttv *btv)
	223	{
	224	if (btv->remote->polling) {
	225	del_timer_sync(&btv->remote->timer);
	226	flush_scheduled_work();
	227	}
	228
	229	if (btv->remote->rc5_gpio) {
	230	u32 gpio;
	231
	232	del_timer_sync(&btv->remote->timer_end);
	233	flush_scheduled_work();
	234
	235	gpio = bttv_gpio_read(&btv->c);
	236	bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
	237	}
	238	}
	239
c0c46826 MCC	240	/*
	241	* Get_key functions used by I2C remotes
	242	*/
	243
	244	static int get_key_pv951(struct IR_i2c ir, u32 ir_key, u32 *ir_raw)
	245	{
	246	unsigned char b;
	247
	248	/* poll IR chip */
	249	if (1 != i2c_master_recv(ir->c, &b, 1)) {
	250	dprintk(KERN_INFO DEVNAME ": read error\n");
	251	return -EIO;
	252	}
	253
	254	/* ignore 0xaa */
	255	if (b==0xaa)
	256	return 0;
	257	dprintk(KERN_INFO DEVNAME ": key %02x\n", b);
	258
	259	*ir_key = b;
	260	*ir_raw = b;
	261	return 1;
	262	}
	263
	264	/* Instantiate the I2C IR receiver device, if present */
	265	void __devinit init_bttv_i2c_ir(struct bttv *btv)
	266	{
	267	const unsigned short addr_list[] = {
	268	0x1a, 0x18, 0x64, 0x30, 0x71,
	269	I2C_CLIENT_END
	270	};
	271	struct i2c_board_info info;
	272
	273	if (0 != btv->i2c_rc)
	274	return;
	275
	276	memset(&info, 0, sizeof(struct i2c_board_info));
	277	memset(&btv->init_data, 0, sizeof(btv->init_data));
	278	strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
	279
	280	switch (btv->c.type) {
	281	case BTTV_BOARD_PV951:
	282	btv->init_data.name = "PV951";
	283	btv->init_data.get_key = get_key_pv951;
	284	btv->init_data.ir_codes = RC_MAP_PV951;
c0c46826 MCC	285	info.addr = 0x4b;
	286	break;
	287	default:
	288	/*
	289	* The external IR receiver is at i2c address 0x34 (0x35 for
	290	* reads). Future Hauppauge cards will have an internal
	291	* receiver at 0x30 (0x31 for reads). In theory, both can be
	292	* fitted, and Hauppauge suggest an external overrides an
	293	* internal.
	294	* That's why we probe 0x1a (~0x34) first. CB
	295	*/
	296
	297	i2c_new_probed_device(&btv->c.i2c_adap, &info, addr_list, NULL);
	298	return;
	299	}
	300
	301	if (btv->init_data.name)
	302	info.platform_data = &btv->init_data;
	303	i2c_new_device(&btv->c.i2c_adap, &info);
	304
	305	return;
	306	}
	307
	308	int __devexit fini_bttv_i2c(struct bttv *btv)
	309	{
	310	if (0 != btv->i2c_rc)
	311	return 0;
	312
	313	return i2c_del_adapter(&btv->c.i2c_adap);
	314	}
	315
4abdfed5	316	int bttv_input_init(struct bttv *btv)
1da177e4	317	{
9160723e	318	struct card_ir *ir;
02858eed	319	char *ir_codes = NULL;
4abdfed5	320	struct input_dev *input_dev;
b07b4783	321	int err = -ENOMEM;
1da177e4	322
4abdfed5 RC	323	if (!btv->has_remote)
	324	return -ENODEV;
	325
	326	ir = kzalloc(sizeof(*ir),GFP_KERNEL);
b7df3910	327	input_dev = input_allocate_device();
b07b4783 DT	328	if (!ir \|\| !input_dev)
b07b4783 DT	329	goto err_out_free;
1da177e4 LT	330
1da177e4 LT	331	/* detect & configure */
4abdfed5	332	switch (btv->c.type) {
5a25e84b MCC	333	case BTTV_BOARD_AVERMEDIA:
	334	case BTTV_BOARD_AVPHONE98:
	335	case BTTV_BOARD_AVERMEDIA98:
02858eed	336	ir_codes = RC_MAP_AVERMEDIA;
1da177e4 LT	337	ir->mask_keycode = 0xf88000;
	338	ir->mask_keydown = 0x010000;
	339	ir->polling = 50; // ms
	340	break;
	341
5a25e84b MCC	342	case BTTV_BOARD_AVDVBT_761:
5a25e84b MCC	343	case BTTV_BOARD_AVDVBT_771:
02858eed	344	ir_codes = RC_MAP_AVERMEDIA_DVBT;
1da177e4 LT	345	ir->mask_keycode = 0x0f00c0;
	346	ir->mask_keydown = 0x000020;
	347	ir->polling = 50; // ms
	348	break;
	349
5a25e84b	350	case BTTV_BOARD_PXELVWPLTVPAK:
02858eed	351	ir_codes = RC_MAP_PIXELVIEW;
1da177e4 LT	352	ir->mask_keycode = 0x003e00;
	353	ir->mask_keyup = 0x010000;
	354	ir->polling = 50; // ms
4ac97914	355	break;
c663155c	356	case BTTV_BOARD_PV_M4900:
5a25e84b MCC	357	case BTTV_BOARD_PV_BT878P_9B:
5a25e84b MCC	358	case BTTV_BOARD_PV_BT878P_PLUS:
02858eed	359	ir_codes = RC_MAP_PIXELVIEW;
1da177e4 LT	360	ir->mask_keycode = 0x001f00;
	361	ir->mask_keyup = 0x008000;
	362	ir->polling = 50; // ms
4ac97914	363	break;
1da177e4	364
5a25e84b	365	case BTTV_BOARD_WINFAST2000:
02858eed	366	ir_codes = RC_MAP_WINFAST;
1da177e4 LT	367	ir->mask_keycode = 0x1f8;
1da177e4 LT	368	break;
5a25e84b MCC	369	case BTTV_BOARD_MAGICTVIEW061:
5a25e84b MCC	370	case BTTV_BOARD_MAGICTVIEW063:
02858eed	371	ir_codes = RC_MAP_WINFAST;
1da177e4 LT	372	ir->mask_keycode = 0x0008e000;
	373	ir->mask_keydown = 0x00200000;
	374	break;
5a25e84b	375	case BTTV_BOARD_APAC_VIEWCOMP:
02858eed	376	ir_codes = RC_MAP_APAC_VIEWCOMP;
1da177e4 LT	377	ir->mask_keycode = 0x001f00;
	378	ir->mask_keyup = 0x008000;
	379	ir->polling = 50; // ms
	380	break;
ed44f66e	381	case BTTV_BOARD_ASKEY_CPH03X:
5a25e84b	382	case BTTV_BOARD_CONCEPTRONIC_CTVFMI2:
4ab2b99b	383	case BTTV_BOARD_CONTVFMI:
02858eed	384	ir_codes = RC_MAP_PIXELVIEW;
cc9d8d49 RC	385	ir->mask_keycode = 0x001F00;
	386	ir->mask_keyup = 0x006000;
	387	ir->polling = 50; // ms
	388	break;
6c6c0b2c	389	case BTTV_BOARD_NEBULA_DIGITV:
02858eed	390	ir_codes = RC_MAP_NEBULA;
4abdfed5	391	btv->custom_irq = bttv_rc5_irq;
6c6c0b2c	392	ir->rc5_gpio = 1;
674434c6	393	break;
2d05ae6b	394	case BTTV_BOARD_MACHTV_MAGICTV:
02858eed	395	ir_codes = RC_MAP_APAC_VIEWCOMP;
2d05ae6b JC	396	ir->mask_keycode = 0x001F00;
	397	ir->mask_keyup = 0x004000;
	398	ir->polling = 50; /* ms */
	399	break;
e80faad3	400	case BTTV_BOARD_KOZUMI_KTV_01C:
02858eed	401	ir_codes = RC_MAP_PCTV_SEDNA;
e80faad3 ML	402	ir->mask_keycode = 0x001f00;
	403	ir->mask_keyup = 0x006000;
	404	ir->polling = 50; /* ms */
	405	break;
7d341a6a	406	case BTTV_BOARD_ENLTV_FM_2:
02858eed	407	ir_codes = RC_MAP_ENCORE_ENLTV2;
7d341a6a MCC	408	ir->mask_keycode = 0x00fd00;
	409	ir->mask_keyup = 0x000080;
	410	ir->polling = 1; /* ms */
	411	ir->last_gpio = ir_extract_bits(bttv_gpio_read(&btv->c),
	412	ir->mask_keycode);
	413	break;
1da177e4 LT	414	}
1da177e4 LT	415	if (NULL == ir_codes) {
b07b4783 DT	416	dprintk(KERN_INFO "Ooops: IR config error [card=%d]\n", btv->c.type);
	417	err = -ENODEV;
	418	goto err_out_free;
1da177e4 LT	419	}
1da177e4 LT	420
6c6c0b2c MW	421	if (ir->rc5_gpio) {
6c6c0b2c MW	422	u32 gpio;
657de3cd	423	/* enable remote irq */
4abdfed5 RC	424	bttv_gpio_inout(&btv->c, (1 << 4), 1 << 4);
	425	gpio = bttv_gpio_read(&btv->c);
	426	bttv_gpio_write(&btv->c, gpio & ~(1 << 4));
	427	bttv_gpio_write(&btv->c, gpio \| (1 << 4));
6c6c0b2c MW	428	} else {
6c6c0b2c MW	429	/* init hardware-specific stuff */
4abdfed5	430	bttv_gpio_inout(&btv->c, ir->mask_keycode \| ir->mask_keydown, 0);
6c6c0b2c	431	}
1da177e4 LT	432
1da177e4 LT	433	/* init input device */
4abdfed5 RC	434	ir->dev = input_dev;
4abdfed5 RC	435
1da177e4	436	snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)",
4abdfed5	437	btv->c.type);
1da177e4	438	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
4abdfed5	439	pci_name(btv->c.pci));
1da177e4	440
b7df3910 DT	441	input_dev->name = ir->name;
	442	input_dev->phys = ir->phys;
	443	input_dev->id.bustype = BUS_PCI;
	444	input_dev->id.version = 1;
4abdfed5 RC	445	if (btv->c.pci->subsystem_vendor) {
	446	input_dev->id.vendor = btv->c.pci->subsystem_vendor;
	447	input_dev->id.product = btv->c.pci->subsystem_device;
1da177e4	448	} else {
4abdfed5 RC	449	input_dev->id.vendor = btv->c.pci->vendor;
4abdfed5 RC	450	input_dev->id.product = btv->c.pci->device;
1da177e4	451	}
2c8a3a33	452	input_dev->dev.parent = &btv->c.pci->dev;
1da177e4	453
4abdfed5	454	btv->remote = ir;
b07b4783	455	bttv_ir_start(btv, ir);
1da177e4 LT	456
1da177e4 LT	457	/* all done */
02858eed	458	err = ir_input_register(btv->remote->dev, ir_codes, NULL, MODULE_NAME);
b07b4783 DT	459	if (err)
b07b4783 DT	460	goto err_out_stop;
6c6c0b2c MW	461
6c6c0b2c MW	462	/* the remote isn't as bouncy as a keyboard */
4abdfed5 RC	463	ir->dev->rep[REP_DELAY] = repeat_delay;
4abdfed5 RC	464	ir->dev->rep[REP_PERIOD] = repeat_period;
1da177e4 LT	465
1da177e4 LT	466	return 0;
b07b4783 DT	467
	468	err_out_stop:
	469	bttv_ir_stop(btv);
	470	btv->remote = NULL;
	471	err_out_free:
b07b4783 DT	472	kfree(ir);
b07b4783 DT	473	return err;
1da177e4 LT	474	}
1da177e4 LT	475
4abdfed5	476	void bttv_input_fini(struct bttv *btv)
1da177e4	477	{
4abdfed5 RC	478	if (btv->remote == NULL)
4abdfed5 RC	479	return;
1da177e4	480
b07b4783	481	bttv_ir_stop(btv);
38ef6aa8	482	ir_input_unregister(btv->remote->dev);
4abdfed5 RC	483	kfree(btv->remote);
4abdfed5 RC	484	btv->remote = NULL;
1da177e4	485	}