[linux-2.6-block.git] / drivers / media / video / cx88 / cx88-input.c

/*
 * $Id: cx88-input.c,v 1.15 2005/07/07 13:58:38 mchehab Exp $
 *
 * Device driver for GPIO attached remote control interfaces
 * on Conexant 2388x based TV/DVB cards.
 *
 * Copyright (c) 2003 Pavel Machek
 * Copyright (c) 2004 Gerd Knorr
 * Copyright (c) 2004 Chris Pascoe
 *
 * 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/init.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <linux/moduleparam.h>

#include <media/ir-common.h>

#include "cx88.h"

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

/* DigitalNow DNTV Live DVB-T Remote */
static IR_KEYTAB_TYPE ir_codes_dntv_live_dvb_t[IR_KEYTAB_SIZE] = {
	[0x00] = KEY_ESC,		/* 'go up a level?' */
	/* Keys 0 to 9 */
	[0x0a] = 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,

	[0x0b] = KEY_TUNER,		/* tv/fm */
	[0x0c] = KEY_SEARCH,		/* scan */
	[0x0d] = KEY_STOP,
	[0x0e] = KEY_PAUSE,
	[0x0f] = KEY_LIST,		/* source */

	[0x10] = KEY_MUTE,
	[0x11] = KEY_REWIND,		/* backward << */
	[0x12] = KEY_POWER,
	[0x13] = KEY_S,			/* snap */
	[0x14] = KEY_AUDIO,		/* stereo */
	[0x15] = KEY_CLEAR,		/* reset */
	[0x16] = KEY_PLAY,
	[0x17] = KEY_ENTER,
	[0x18] = KEY_ZOOM,		/* full screen */
	[0x19] = KEY_FASTFORWARD,	/* forward >> */
	[0x1a] = KEY_CHANNELUP,
	[0x1b] = KEY_VOLUMEUP,
	[0x1c] = KEY_INFO,		/* preview */
	[0x1d] = KEY_RECORD,		/* record */
	[0x1e] = KEY_CHANNELDOWN,
	[0x1f] = KEY_VOLUMEDOWN,
};

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

/* IO-DATA BCTV7E Remote */
static IR_KEYTAB_TYPE ir_codes_iodata_bctv7e[IR_KEYTAB_SIZE] = {
	[0x40] = KEY_TV,
	[0x20] = KEY_RADIO,		/* FM */
	[0x60] = KEY_EPG,
	[0x00] = KEY_POWER,

	/* Keys 0 to 9 */
	[0x44] = KEY_KP0,		/* 10 */
	[0x50] = KEY_KP1,
	[0x30] = KEY_KP2,
	[0x70] = KEY_KP3,
	[0x48] = KEY_KP4,
	[0x28] = KEY_KP5,
	[0x68] = KEY_KP6,
	[0x58] = KEY_KP7,
	[0x38] = KEY_KP8,
	[0x78] = KEY_KP9,

	[0x10] = KEY_L,			/* Live */
	[0x08] = KEY_T,			/* Time Shift */

	[0x18] = KEY_PLAYPAUSE,		/* Play */

	[0x24] = KEY_ENTER,		/* 11 */
	[0x64] = KEY_ESC,		/* 12 */
	[0x04] = KEY_M,			/* Multi */

	[0x54] = KEY_VIDEO,
	[0x34] = KEY_CHANNELUP,
	[0x74] = KEY_VOLUMEUP,
	[0x14] = KEY_MUTE,

	[0x4c] = KEY_S,			/* SVIDEO */
	[0x2c] = KEY_CHANNELDOWN,
	[0x6c] = KEY_VOLUMEDOWN,
	[0x0c] = KEY_ZOOM,

	[0x5c] = KEY_PAUSE,
	[0x3c] = KEY_C,			/* || (red) */
	[0x7c] = KEY_RECORD,		/* recording */
	[0x1c] = KEY_STOP,

	[0x41] = KEY_REWIND,		/* backward << */
	[0x21] = KEY_PLAY,
	[0x61] = KEY_FASTFORWARD,	/* forward >> */
	[0x01] = KEY_NEXT,		/* skip >| */
};

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

/* ADS Tech Instant TV DVB-T PCI Remote */
static IR_KEYTAB_TYPE ir_codes_adstech_dvb_t_pci[IR_KEYTAB_SIZE] = {
	/* Keys 0 to 9 */
	[0x4d] = KEY_0,
	[0x57] = KEY_1,
	[0x4f] = KEY_2,
	[0x53] = KEY_3,
	[0x56] = KEY_4,
	[0x4e] = KEY_5,
	[0x5e] = KEY_6,
	[0x54] = KEY_7,
	[0x4c] = KEY_8,
	[0x5c] = KEY_9,

	[0x5b] = KEY_POWER,
	[0x5f] = KEY_MUTE,
	[0x55] = KEY_GOTO,
	[0x5d] = KEY_SEARCH,
	[0x17] = KEY_EPG,		/* Guide */
	[0x1f] = KEY_MENU,
	[0x0f] = KEY_UP,
	[0x46] = KEY_DOWN,
	[0x16] = KEY_LEFT,
	[0x1e] = KEY_RIGHT,
	[0x0e] = KEY_SELECT,		/* Enter */
	[0x5a] = KEY_INFO,
	[0x52] = KEY_EXIT,
	[0x59] = KEY_PREVIOUS,
	[0x51] = KEY_NEXT,
	[0x58] = KEY_REWIND,
	[0x50] = KEY_FORWARD,
	[0x44] = KEY_PLAYPAUSE,
	[0x07] = KEY_STOP,
	[0x1b] = KEY_RECORD,
	[0x13] = KEY_TUNER,		/* Live */
	[0x0a] = KEY_A,
	[0x12] = KEY_B,
	[0x03] = KEY_PROG1,		/* 1 */
	[0x01] = KEY_PROG2,		/* 2 */
	[0x00] = KEY_PROG3,		/* 3 */
	[0x06] = KEY_DVD,
	[0x48] = KEY_AUX,		/* Photo */
	[0x40] = KEY_VIDEO,
	[0x19] = KEY_AUDIO,		/* Music */
	[0x0b] = KEY_CHANNELUP,
	[0x08] = KEY_CHANNELDOWN,
	[0x15] = KEY_VOLUMEUP,
	[0x1c] = KEY_VOLUMEDOWN,
};

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

/* MSI TV@nywhere remote */
static IR_KEYTAB_TYPE ir_codes_msi_tvanywhere[IR_KEYTAB_SIZE] = {
	/* Keys 0 to 9 */
	[0x00] = KEY_0,
	[0x01] = KEY_1,
	[0x02] = KEY_2,
	[0x03] = KEY_3,
	[0x04] = KEY_4,
	[0x05] = KEY_5,
	[0x06] = KEY_6,
	[0x07] = KEY_7,
	[0x08] = KEY_8,
	[0x09] = KEY_9,

	[0x0c] = KEY_MUTE,
	[0x0f] = KEY_SCREEN,		/* Full Screen */
	[0x10] = KEY_F,			/* Funtion */
	[0x11] = KEY_T,			/* Time shift */
	[0x12] = KEY_POWER,
	[0x13] = KEY_MEDIA,		/* MTS */
	[0x14] = KEY_SLOW,
	[0x16] = KEY_REWIND,		/* backward << */
	[0x17] = KEY_ENTER,		/* Return */
	[0x18] = KEY_FASTFORWARD,	/* forward >> */
	[0x1a] = KEY_CHANNELUP,
	[0x1b] = KEY_VOLUMEUP,
	[0x1e] = KEY_CHANNELDOWN,
	[0x1f] = KEY_VOLUMEDOWN,
};

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

struct cx88_IR {
	struct cx88_core *core;
	struct input_dev input;
	struct ir_input_state ir;
	char name[32];
	char phys[32];

	/* sample from gpio pin 16 */
	int sampling;
	u32 samples[16];
	int scount;
	unsigned long release;

	/* poll external decoder */
	int polling;
	struct work_struct work;
	struct timer_list timer;
	u32 gpio_addr;
	u32 last_gpio;
	u32 mask_keycode;
	u32 mask_keydown;
	u32 mask_keyup;
};

static int ir_debug = 0;
module_param(ir_debug, int, 0644);	/* debug level [IR] */
MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");

#define ir_dprintk(fmt, arg...)	if (ir_debug) \
	printk(KERN_DEBUG "%s IR: " fmt , ir->core->name, ## arg)

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

static void cx88_ir_handle_key(struct cx88_IR *ir)
{
	struct cx88_core *core = ir->core;
	u32 gpio, data;

	/* read gpio value */
	gpio = cx_read(ir->gpio_addr);
	if (ir->polling) {
		if (ir->last_gpio == gpio)
			return;
		ir->last_gpio = gpio;
	}

	/* extract data */
	data = ir_extract_bits(gpio, ir->mask_keycode);
	ir_dprintk("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) {
		/* bit set on keydown */
		if (gpio & ir->mask_keydown) {
			ir_input_keydown(&ir->input, &ir->ir, data, data);
		} else {
			ir_input_nokey(&ir->input, &ir->ir);
		}

	} else if (ir->mask_keyup) {
		/* bit cleared on keydown */
		if (0 == (gpio & ir->mask_keyup)) {
			ir_input_keydown(&ir->input, &ir->ir, data, data);
		} else {
			ir_input_nokey(&ir->input, &ir->ir);
		}

	} else {
		/* can't distinguish keydown/up :-/ */
		ir_input_keydown(&ir->input, &ir->ir, data, data);
		ir_input_nokey(&ir->input, &ir->ir);
	}
}

static void ir_timer(unsigned long data)
{
	struct cx88_IR *ir = (struct cx88_IR *)data;

	schedule_work(&ir->work);
}

static void cx88_ir_work(void *data)
{
	struct cx88_IR *ir = data;
	unsigned long timeout;

	cx88_ir_handle_key(ir);
	timeout = jiffies + (ir->polling * HZ / 1000);
	mod_timer(&ir->timer, timeout);
}

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

int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
{
	struct cx88_IR *ir;
	IR_KEYTAB_TYPE *ir_codes = NULL;
	int ir_type = IR_TYPE_OTHER;

	ir = kmalloc(sizeof(*ir), GFP_KERNEL);
	if (NULL == ir)
		return -ENOMEM;
	memset(ir, 0, sizeof(*ir));

	/* detect & configure */
	switch (core->board) {
	case CX88_BOARD_DNTV_LIVE_DVB_T:
	case CX88_BOARD_KWORLD_DVB_T:
		ir_codes = ir_codes_dntv_live_dvb_t;
		ir->gpio_addr = MO_GP1_IO;
		ir->mask_keycode = 0x1f;
		ir->mask_keyup = 0x60;
		ir->polling = 50; /* ms */
		break;
	case CX88_BOARD_HAUPPAUGE:
	case CX88_BOARD_HAUPPAUGE_DVB_T1:
		ir_codes = ir_codes_hauppauge_new;
		ir_type = IR_TYPE_RC5;
		ir->sampling = 1;
		break;
	case CX88_BOARD_WINFAST2000XP_EXPERT:
		ir_codes = ir_codes_winfast;
		ir->gpio_addr = MO_GP0_IO;
		ir->mask_keycode = 0x8f8;
		ir->mask_keyup = 0x100;
		ir->polling = 1; /* ms */
		break;
	case CX88_BOARD_IODATA_GVBCTV7E:
		ir_codes = ir_codes_iodata_bctv7e;
		ir->gpio_addr = MO_GP0_IO;
		ir->mask_keycode = 0xfd;
		ir->mask_keydown = 0x02;
		ir->polling = 5; /* ms */
		break;
	case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
		ir_codes = ir_codes_pixelview;
		ir->gpio_addr = MO_GP1_IO;
		ir->mask_keycode = 0x1f;
		ir->mask_keyup = 0x80;
		ir->polling = 1; /* ms */
		break;
	case CX88_BOARD_ADSTECH_DVB_T_PCI:
		ir_codes = ir_codes_adstech_dvb_t_pci;
		ir->gpio_addr = MO_GP1_IO;
		ir->mask_keycode = 0xbf;
		ir->mask_keyup = 0x40;
		ir->polling = 50; /* ms */
		break;
	case CX88_BOARD_MSI_TVANYWHERE_MASTER:
		ir_codes = ir_codes_msi_tvanywhere;
		ir->gpio_addr = MO_GP1_IO;
		ir->mask_keycode = 0x1f;
		ir->mask_keyup = 0x40;
		ir->polling = 1; /* ms */
		break;
	}

	if (NULL == ir_codes) {
		kfree(ir);
		return -ENODEV;
	}

	/* init input device */
	snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)",
		 cx88_boards[core->board].name);
	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));

	ir_input_init(&ir->input, &ir->ir, ir_type, ir_codes);
	ir->input.name = ir->name;
	ir->input.phys = ir->phys;
	ir->input.id.bustype = BUS_PCI;
	ir->input.id.version = 1;
	if (pci->subsystem_vendor) {
		ir->input.id.vendor = pci->subsystem_vendor;
		ir->input.id.product = pci->subsystem_device;
	} else {
		ir->input.id.vendor = pci->vendor;
		ir->input.id.product = pci->device;
	}

	/* record handles to ourself */
	ir->core = core;
	core->ir = ir;

	if (ir->polling) {
		INIT_WORK(&ir->work, cx88_ir_work, ir);
		init_timer(&ir->timer);
		ir->timer.function = ir_timer;
		ir->timer.data = (unsigned long)ir;
		schedule_work(&ir->work);
	}
	if (ir->sampling) {
		core->pci_irqmask |= (1 << 18);	/* IR_SMP_INT */
		cx_write(MO_DDS_IO, 0xa80a80);	/* 4 kHz sample rate */
		cx_write(MO_DDSCFG_IO, 0x5);	/* enable */
	}

	/* all done */
	input_register_device(&ir->input);
	printk("%s: registered IR remote control\n", core->name);

	return 0;
}

int cx88_ir_fini(struct cx88_core *core)
{
	struct cx88_IR *ir = core->ir;

	/* skip detach on non attached boards */
	if (NULL == ir)
		return 0;

	if (ir->polling) {
		del_timer(&ir->timer);
		flush_scheduled_work();
	}

	input_unregister_device(&ir->input);
	kfree(ir);

	/* done */
	core->ir = NULL;
	return 0;
}

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

void cx88_ir_irq(struct cx88_core *core)
{
	struct cx88_IR *ir = core->ir;
	u32 samples, rc5;
	int i;

	if (NULL == ir)
		return;
	if (!ir->sampling)
		return;

	samples = cx_read(MO_SAMPLE_IO);
	if (0 != samples && 0xffffffff != samples) {
		/* record sample data */
		if (ir->scount < ARRAY_SIZE(ir->samples))
			ir->samples[ir->scount++] = samples;
		return;
	}
	if (!ir->scount) {
		/* nothing to sample */
		if (ir->ir.keypressed && time_after(jiffies, ir->release))
			ir_input_nokey(&ir->input, &ir->ir);
		return;
	}

	/* have a complete sample */
	if (ir->scount < ARRAY_SIZE(ir->samples))
		ir->samples[ir->scount++] = samples;
	for (i = 0; i < ir->scount; i++)
		ir->samples[i] = ~ir->samples[i];
	if (ir_debug)
		ir_dump_samples(ir->samples, ir->scount);

	/* decode it */
	switch (core->board) {
	case CX88_BOARD_HAUPPAUGE:
	case CX88_BOARD_HAUPPAUGE_DVB_T1:
		rc5 = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
		ir_dprintk("biphase decoded: %x\n", rc5);
		if ((rc5 & 0xfffff000) != 0x3000)
			break;
		ir_input_keydown(&ir->input, &ir->ir, rc5 & 0x3f, rc5);
		ir->release = jiffies + msecs_to_jiffies(120);
		break;
	}

	ir->scount = 0;
	return;
}

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

MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
MODULE_LICENSE("GPL");

/*
 * Local variables:
 * c-basic-offset: 8
 * End:
 */
Commit	Line	Data
1da177e4	1	/*
41ef7c1e	2	* $Id: cx88-input.c,v 1.15 2005/07/07 13:58:38 mchehab Exp $
1da177e4 LT	3	*
	4	* Device driver for GPIO attached remote control interfaces
	5	* on Conexant 2388x based TV/DVB cards.
	6	*
	7	* Copyright (c) 2003 Pavel Machek
	8	* Copyright (c) 2004 Gerd Knorr
	9	* Copyright (c) 2004 Chris Pascoe
	10	*
	11	* This program is free software; you can redistribute it and/or modify
	12	* it under the terms of the GNU General Public License as published by
	13	* the Free Software Foundation; either version 2 of the License, or
	14	* (at your option) any later version.
	15	*
	16	* This program is distributed in the hope that it will be useful,
	17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	19	* GNU General Public License for more details.
	20	*
	21	* You should have received a copy of the GNU General Public License
	22	* along with this program; if not, write to the Free Software
	23	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	24	*/
	25
	26	#include <linux/init.h>
	27	#include <linux/delay.h>
	28	#include <linux/input.h>
	29	#include <linux/pci.h>
	30	#include <linux/module.h>
	31	#include <linux/moduleparam.h>
	32
	33	#include <media/ir-common.h>
	34
	35	#include "cx88.h"
	36
	37	/* ---------------------------------------------------------------------- */
	38
	39	/* DigitalNow DNTV Live DVB-T Remote */
	40	static IR_KEYTAB_TYPE ir_codes_dntv_live_dvb_t[IR_KEYTAB_SIZE] = {
41ef7c1e MCC	41	[0x00] = KEY_ESC, /* 'go up a level?' */
	42	/* Keys 0 to 9 */
	43	[0x0a] = KEY_KP0,
	44	[0x01] = KEY_KP1,
	45	[0x02] = KEY_KP2,
	46	[0x03] = KEY_KP3,
	47	[0x04] = KEY_KP4,
	48	[0x05] = KEY_KP5,
	49	[0x06] = KEY_KP6,
	50	[0x07] = KEY_KP7,
	51	[0x08] = KEY_KP8,
	52	[0x09] = KEY_KP9,
	53
	54	[0x0b] = KEY_TUNER, /* tv/fm */
	55	[0x0c] = KEY_SEARCH, /* scan */
	56	[0x0d] = KEY_STOP,
	57	[0x0e] = KEY_PAUSE,
	58	[0x0f] = KEY_LIST, /* source */
	59
	60	[0x10] = KEY_MUTE,
	61	[0x11] = KEY_REWIND, /* backward << */
	62	[0x12] = KEY_POWER,
	63	[0x13] = KEY_S, /* snap */
	64	[0x14] = KEY_AUDIO, /* stereo */
	65	[0x15] = KEY_CLEAR, /* reset */
	66	[0x16] = KEY_PLAY,
	67	[0x17] = KEY_ENTER,
	68	[0x18] = KEY_ZOOM, /* full screen */
	69	[0x19] = KEY_FASTFORWARD, /* forward >> */
	70	[0x1a] = KEY_CHANNELUP,
	71	[0x1b] = KEY_VOLUMEUP,
	72	[0x1c] = KEY_INFO, /* preview */
	73	[0x1d] = KEY_RECORD, /* record */
	74	[0x1e] = KEY_CHANNELDOWN,
	75	[0x1f] = KEY_VOLUMEDOWN,
1da177e4 LT	76	};
	77
	78	/* ---------------------------------------------------------------------- */
	79
	80	/* IO-DATA BCTV7E Remote */
	81	static IR_KEYTAB_TYPE ir_codes_iodata_bctv7e[IR_KEYTAB_SIZE] = {
41ef7c1e MCC	82	[0x40] = KEY_TV,
	83	[0x20] = KEY_RADIO, /* FM */
	84	[0x60] = KEY_EPG,
	85	[0x00] = KEY_POWER,
	86
	87	/* Keys 0 to 9 */
	88	[0x44] = KEY_KP0, /* 10 */
	89	[0x50] = KEY_KP1,
	90	[0x30] = KEY_KP2,
	91	[0x70] = KEY_KP3,
	92	[0x48] = KEY_KP4,
	93	[0x28] = KEY_KP5,
	94	[0x68] = KEY_KP6,
	95	[0x58] = KEY_KP7,
	96	[0x38] = KEY_KP8,
	97	[0x78] = KEY_KP9,
	98
	99	[0x10] = KEY_L, /* Live */
	100	[0x08] = KEY_T, /* Time Shift */
	101
	102	[0x18] = KEY_PLAYPAUSE, /* Play */
	103
	104	[0x24] = KEY_ENTER, /* 11 */
	105	[0x64] = KEY_ESC, /* 12 */
	106	[0x04] = KEY_M, /* Multi */
	107
	108	[0x54] = KEY_VIDEO,
	109	[0x34] = KEY_CHANNELUP,
	110	[0x74] = KEY_VOLUMEUP,
	111	[0x14] = KEY_MUTE,
	112
	113	[0x4c] = KEY_S, /* SVIDEO */
	114	[0x2c] = KEY_CHANNELDOWN,
	115	[0x6c] = KEY_VOLUMEDOWN,
	116	[0x0c] = KEY_ZOOM,
	117
	118	[0x5c] = KEY_PAUSE,
	119	[0x3c] = KEY_C, /* \|\| (red) */
	120	[0x7c] = KEY_RECORD, /* recording */
	121	[0x1c] = KEY_STOP,
	122
	123	[0x41] = KEY_REWIND, /* backward << */
	124	[0x21] = KEY_PLAY,
	125	[0x61] = KEY_FASTFORWARD, /* forward >> */
	126	[0x01] = KEY_NEXT, /* skip >\| */
1da177e4 LT	127	};
	128
	129	/* ---------------------------------------------------------------------- */
	130
a82decf6 MCC	131	/* ADS Tech Instant TV DVB-T PCI Remote */
a82decf6 MCC	132	static IR_KEYTAB_TYPE ir_codes_adstech_dvb_t_pci[IR_KEYTAB_SIZE] = {
41ef7c1e MCC	133	/* Keys 0 to 9 */
	134	[0x4d] = KEY_0,
	135	[0x57] = KEY_1,
	136	[0x4f] = KEY_2,
	137	[0x53] = KEY_3,
	138	[0x56] = KEY_4,
	139	[0x4e] = KEY_5,
	140	[0x5e] = KEY_6,
	141	[0x54] = KEY_7,
	142	[0x4c] = KEY_8,
	143	[0x5c] = KEY_9,
	144
	145	[0x5b] = KEY_POWER,
	146	[0x5f] = KEY_MUTE,
	147	[0x55] = KEY_GOTO,
	148	[0x5d] = KEY_SEARCH,
	149	[0x17] = KEY_EPG, /* Guide */
	150	[0x1f] = KEY_MENU,
	151	[0x0f] = KEY_UP,
	152	[0x46] = KEY_DOWN,
	153	[0x16] = KEY_LEFT,
	154	[0x1e] = KEY_RIGHT,
	155	[0x0e] = KEY_SELECT, /* Enter */
	156	[0x5a] = KEY_INFO,
	157	[0x52] = KEY_EXIT,
	158	[0x59] = KEY_PREVIOUS,
	159	[0x51] = KEY_NEXT,
	160	[0x58] = KEY_REWIND,
	161	[0x50] = KEY_FORWARD,
	162	[0x44] = KEY_PLAYPAUSE,
	163	[0x07] = KEY_STOP,
	164	[0x1b] = KEY_RECORD,
	165	[0x13] = KEY_TUNER, /* Live */
	166	[0x0a] = KEY_A,
	167	[0x12] = KEY_B,
	168	[0x03] = KEY_PROG1, /* 1 */
	169	[0x01] = KEY_PROG2, /* 2 */
	170	[0x00] = KEY_PROG3, /* 3 */
	171	[0x06] = KEY_DVD,
	172	[0x48] = KEY_AUX, /* Photo */
	173	[0x40] = KEY_VIDEO,
	174	[0x19] = KEY_AUDIO, /* Music */
	175	[0x0b] = KEY_CHANNELUP,
	176	[0x08] = KEY_CHANNELDOWN,
	177	[0x15] = KEY_VOLUMEUP,
	178	[0x1c] = KEY_VOLUMEDOWN,
a82decf6 MCC	179	};
	180
	181	/* ---------------------------------------------------------------------- */
	182
	183	/* MSI TV@nywhere remote */
	184	static IR_KEYTAB_TYPE ir_codes_msi_tvanywhere[IR_KEYTAB_SIZE] = {
41ef7c1e MCC	185	/* Keys 0 to 9 */
	186	[0x00] = KEY_0,
	187	[0x01] = KEY_1,
	188	[0x02] = KEY_2,
	189	[0x03] = KEY_3,
	190	[0x04] = KEY_4,
	191	[0x05] = KEY_5,
	192	[0x06] = KEY_6,
	193	[0x07] = KEY_7,
	194	[0x08] = KEY_8,
	195	[0x09] = KEY_9,
	196
	197	[0x0c] = KEY_MUTE,
	198	[0x0f] = KEY_SCREEN, /* Full Screen */
	199	[0x10] = KEY_F, /* Funtion */
	200	[0x11] = KEY_T, /* Time shift */
	201	[0x12] = KEY_POWER,
	202	[0x13] = KEY_MEDIA, /* MTS */
	203	[0x14] = KEY_SLOW,
	204	[0x16] = KEY_REWIND, /* backward << */
	205	[0x17] = KEY_ENTER, /* Return */
	206	[0x18] = KEY_FASTFORWARD, /* forward >> */
	207	[0x1a] = KEY_CHANNELUP,
	208	[0x1b] = KEY_VOLUMEUP,
	209	[0x1e] = KEY_CHANNELDOWN,
	210	[0x1f] = KEY_VOLUMEDOWN,
a82decf6 MCC	211	};
	212
	213	/* ---------------------------------------------------------------------- */
	214
1da177e4	215	struct cx88_IR {
41ef7c1e MCC	216	struct cx88_core *core;
	217	struct input_dev input;
	218	struct ir_input_state ir;
	219	char name[32];
	220	char phys[32];
1da177e4 LT	221
1da177e4 LT	222	/* sample from gpio pin 16 */
41ef7c1e MCC	223	int sampling;
	224	u32 samples[16];
	225	int scount;
	226	unsigned long release;
1da177e4 LT	227
1da177e4 LT	228	/* poll external decoder */
41ef7c1e MCC	229	int polling;
	230	struct work_struct work;
	231	struct timer_list timer;
	232	u32 gpio_addr;
	233	u32 last_gpio;
	234	u32 mask_keycode;
	235	u32 mask_keydown;
	236	u32 mask_keyup;
1da177e4 LT	237	};
	238
	239	static int ir_debug = 0;
41ef7c1e	240	module_param(ir_debug, int, 0644); /* debug level [IR] */
1da177e4 LT	241	MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
	242
	243	#define ir_dprintk(fmt, arg...) if (ir_debug) \
	244	printk(KERN_DEBUG "%s IR: " fmt , ir->core->name, ## arg)
	245
	246	/* ---------------------------------------------------------------------- */
	247
	248	static void cx88_ir_handle_key(struct cx88_IR *ir)
	249	{
	250	struct cx88_core *core = ir->core;
	251	u32 gpio, data;
	252
	253	/* read gpio value */
	254	gpio = cx_read(ir->gpio_addr);
	255	if (ir->polling) {
	256	if (ir->last_gpio == gpio)
	257	return;
	258	ir->last_gpio = gpio;
	259	}
	260
	261	/* extract data */
	262	data = ir_extract_bits(gpio, ir->mask_keycode);
	263	ir_dprintk("irq gpio=0x%x code=%d \| %s%s%s\n",
41ef7c1e MCC	264	gpio, data,
	265	ir->polling ? "poll" : "irq",
	266	(gpio & ir->mask_keydown) ? " down" : "",
	267	(gpio & ir->mask_keyup) ? " up" : "");
1da177e4 LT	268
	269	if (ir->mask_keydown) {
	270	/* bit set on keydown */
	271	if (gpio & ir->mask_keydown) {
41ef7c1e	272	ir_input_keydown(&ir->input, &ir->ir, data, data);
1da177e4	273	} else {
41ef7c1e	274	ir_input_nokey(&ir->input, &ir->ir);
1da177e4 LT	275	}
	276
	277	} else if (ir->mask_keyup) {
	278	/* bit cleared on keydown */
	279	if (0 == (gpio & ir->mask_keyup)) {
41ef7c1e	280	ir_input_keydown(&ir->input, &ir->ir, data, data);
1da177e4	281	} else {
41ef7c1e	282	ir_input_nokey(&ir->input, &ir->ir);
1da177e4 LT	283	}
	284
	285	} else {
	286	/* can't distinguish keydown/up :-/ */
41ef7c1e MCC	287	ir_input_keydown(&ir->input, &ir->ir, data, data);
41ef7c1e MCC	288	ir_input_nokey(&ir->input, &ir->ir);
1da177e4 LT	289	}
	290	}
	291
	292	static void ir_timer(unsigned long data)
	293	{
41ef7c1e	294	struct cx88_IR ir = (struct cx88_IR )data;
1da177e4 LT	295
	296	schedule_work(&ir->work);
	297	}
	298
	299	static void cx88_ir_work(void *data)
	300	{
	301	struct cx88_IR *ir = data;
	302	unsigned long timeout;
	303
	304	cx88_ir_handle_key(ir);
	305	timeout = jiffies + (ir->polling * HZ / 1000);
	306	mod_timer(&ir->timer, timeout);
	307	}
	308
	309	/* ---------------------------------------------------------------------- */
	310
	311	int cx88_ir_init(struct cx88_core core, struct pci_dev pci)
	312	{
	313	struct cx88_IR *ir;
	314	IR_KEYTAB_TYPE *ir_codes = NULL;
	315	int ir_type = IR_TYPE_OTHER;
	316
41ef7c1e	317	ir = kmalloc(sizeof(*ir), GFP_KERNEL);
1da177e4 LT	318	if (NULL == ir)
1da177e4 LT	319	return -ENOMEM;
41ef7c1e	320	memset(ir, 0, sizeof(*ir));
1da177e4 LT	321
	322	/* detect & configure */
	323	switch (core->board) {
	324	case CX88_BOARD_DNTV_LIVE_DVB_T:
b45009b0	325	case CX88_BOARD_KWORLD_DVB_T:
41ef7c1e MCC	326	ir_codes = ir_codes_dntv_live_dvb_t;
41ef7c1e MCC	327	ir->gpio_addr = MO_GP1_IO;
1da177e4	328	ir->mask_keycode = 0x1f;
41ef7c1e MCC	329	ir->mask_keyup = 0x60;
41ef7c1e MCC	330	ir->polling = 50; /* ms */
1da177e4 LT	331	break;
	332	case CX88_BOARD_HAUPPAUGE:
	333	case CX88_BOARD_HAUPPAUGE_DVB_T1:
41ef7c1e MCC	334	ir_codes = ir_codes_hauppauge_new;
	335	ir_type = IR_TYPE_RC5;
	336	ir->sampling = 1;
1da177e4 LT	337	break;
1da177e4 LT	338	case CX88_BOARD_WINFAST2000XP_EXPERT:
41ef7c1e MCC	339	ir_codes = ir_codes_winfast;
41ef7c1e MCC	340	ir->gpio_addr = MO_GP0_IO;
1da177e4	341	ir->mask_keycode = 0x8f8;
41ef7c1e MCC	342	ir->mask_keyup = 0x100;
41ef7c1e MCC	343	ir->polling = 1; /* ms */
1da177e4 LT	344	break;
1da177e4 LT	345	case CX88_BOARD_IODATA_GVBCTV7E:
41ef7c1e MCC	346	ir_codes = ir_codes_iodata_bctv7e;
41ef7c1e MCC	347	ir->gpio_addr = MO_GP0_IO;
1da177e4 LT	348	ir->mask_keycode = 0xfd;
1da177e4 LT	349	ir->mask_keydown = 0x02;
41ef7c1e	350	ir->polling = 5; /* ms */
1da177e4	351	break;
239df2e2	352	case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
41ef7c1e MCC	353	ir_codes = ir_codes_pixelview;
41ef7c1e MCC	354	ir->gpio_addr = MO_GP1_IO;
239df2e2	355	ir->mask_keycode = 0x1f;
41ef7c1e MCC	356	ir->mask_keyup = 0x80;
41ef7c1e MCC	357	ir->polling = 1; /* ms */
239df2e2	358	break;
a82decf6	359	case CX88_BOARD_ADSTECH_DVB_T_PCI:
41ef7c1e MCC	360	ir_codes = ir_codes_adstech_dvb_t_pci;
41ef7c1e MCC	361	ir->gpio_addr = MO_GP1_IO;
a82decf6	362	ir->mask_keycode = 0xbf;
41ef7c1e MCC	363	ir->mask_keyup = 0x40;
	364	ir->polling = 50; /* ms */
	365	break;
	366	case CX88_BOARD_MSI_TVANYWHERE_MASTER:
	367	ir_codes = ir_codes_msi_tvanywhere;
	368	ir->gpio_addr = MO_GP1_IO;
	369	ir->mask_keycode = 0x1f;
	370	ir->mask_keyup = 0x40;
	371	ir->polling = 1; /* ms */
a82decf6	372	break;
1da177e4	373	}
b45009b0	374
1da177e4 LT	375	if (NULL == ir_codes) {
	376	kfree(ir);
	377	return -ENODEV;
	378	}
	379
	380	/* init input device */
	381	snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)",
	382	cx88_boards[core->board].name);
41ef7c1e	383	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
1da177e4 LT	384
	385	ir_input_init(&ir->input, &ir->ir, ir_type, ir_codes);
	386	ir->input.name = ir->name;
	387	ir->input.phys = ir->phys;
	388	ir->input.id.bustype = BUS_PCI;
	389	ir->input.id.version = 1;
	390	if (pci->subsystem_vendor) {
41ef7c1e	391	ir->input.id.vendor = pci->subsystem_vendor;
1da177e4 LT	392	ir->input.id.product = pci->subsystem_device;
1da177e4 LT	393	} else {
41ef7c1e	394	ir->input.id.vendor = pci->vendor;
1da177e4 LT	395	ir->input.id.product = pci->device;
	396	}
	397
	398	/* record handles to ourself */
	399	ir->core = core;
	400	core->ir = ir;
	401
	402	if (ir->polling) {
	403	INIT_WORK(&ir->work, cx88_ir_work, ir);
	404	init_timer(&ir->timer);
	405	ir->timer.function = ir_timer;
41ef7c1e	406	ir->timer.data = (unsigned long)ir;
1da177e4 LT	407	schedule_work(&ir->work);
	408	}
	409	if (ir->sampling) {
41ef7c1e MCC	410	core->pci_irqmask \|= (1 << 18); /* IR_SMP_INT */
	411	cx_write(MO_DDS_IO, 0xa80a80); /* 4 kHz sample rate */
	412	cx_write(MO_DDSCFG_IO, 0x5); /* enable */
1da177e4 LT	413	}
	414
	415	/* all done */
	416	input_register_device(&ir->input);
	417	printk("%s: registered IR remote control\n", core->name);
	418
	419	return 0;
	420	}
	421
	422	int cx88_ir_fini(struct cx88_core *core)
	423	{
	424	struct cx88_IR *ir = core->ir;
	425
	426	/* skip detach on non attached boards */
	427	if (NULL == ir)
	428	return 0;
	429
	430	if (ir->polling) {
	431	del_timer(&ir->timer);
	432	flush_scheduled_work();
	433	}
	434
	435	input_unregister_device(&ir->input);
	436	kfree(ir);
	437
	438	/* done */
	439	core->ir = NULL;
	440	return 0;
	441	}
	442
	443	/* ---------------------------------------------------------------------- */
	444
	445	void cx88_ir_irq(struct cx88_core *core)
	446	{
	447	struct cx88_IR *ir = core->ir;
41ef7c1e	448	u32 samples, rc5;
1da177e4 LT	449	int i;
	450
	451	if (NULL == ir)
	452	return;
	453	if (!ir->sampling)
	454	return;
	455
	456	samples = cx_read(MO_SAMPLE_IO);
41ef7c1e	457	if (0 != samples && 0xffffffff != samples) {
1da177e4 LT	458	/* record sample data */
	459	if (ir->scount < ARRAY_SIZE(ir->samples))
	460	ir->samples[ir->scount++] = samples;
	461	return;
	462	}
	463	if (!ir->scount) {
	464	/* nothing to sample */
41ef7c1e MCC	465	if (ir->ir.keypressed && time_after(jiffies, ir->release))
41ef7c1e MCC	466	ir_input_nokey(&ir->input, &ir->ir);
1da177e4 LT	467	return;
	468	}
	469
	470	/* have a complete sample */
	471	if (ir->scount < ARRAY_SIZE(ir->samples))
	472	ir->samples[ir->scount++] = samples;
	473	for (i = 0; i < ir->scount; i++)
	474	ir->samples[i] = ~ir->samples[i];
	475	if (ir_debug)
41ef7c1e	476	ir_dump_samples(ir->samples, ir->scount);
1da177e4 LT	477
	478	/* decode it */
	479	switch (core->board) {
	480	case CX88_BOARD_HAUPPAUGE:
	481	case CX88_BOARD_HAUPPAUGE_DVB_T1:
41ef7c1e MCC	482	rc5 = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
41ef7c1e MCC	483	ir_dprintk("biphase decoded: %x\n", rc5);
1da177e4 LT	484	if ((rc5 & 0xfffff000) != 0x3000)
	485	break;
	486	ir_input_keydown(&ir->input, &ir->ir, rc5 & 0x3f, rc5);
	487	ir->release = jiffies + msecs_to_jiffies(120);
	488	break;
	489	}
	490
	491	ir->scount = 0;
	492	return;
	493	}
	494
	495	/* ---------------------------------------------------------------------- */
	496
	497	MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
	498	MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
	499	MODULE_LICENSE("GPL");
	500
	501	/*
	502	* Local variables:
	503	* c-basic-offset: 8
	504	* End:
	505	*/