drivers/media/dvb/ttpci/av7110_ir.c - LeafOS-Devices/android_kernel_samsung_gta4xl - Gitiles

 /*
  * Driver for the remote control of SAA7146 based AV7110 cards
  *
  * Copyright (C) 1999-2003 Holger Waechtler <holger@convergence.de>
  * Copyright (C) 2003-2007 Oliver Endriss <o.endriss@gmx.de>
  *
  * 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.
  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
  *
  */


 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/proc_fs.h>
 #include <linux/kernel.h>
 #include <asm/bitops.h>

 #include "av7110.h"
 #include "av7110_hw.h"


 #define AV_CNT		4

 #define IR_RC5		0
 #define IR_RCMM		1
 #define IR_RC5_EXT	2 /* internal only */

 #define IR_ALL		0xffffffff

 #define UP_TIMEOUT	(HZ*7/25)


 /* Note: enable ir debugging by or'ing debug with 16 */

 static int ir_protocol[AV_CNT] = { IR_RCMM, IR_RCMM, IR_RCMM, IR_RCMM};
 module_param_array(ir_protocol, int, NULL, 0644);
 MODULE_PARM_DESC(ir_protocol, "Infrared protocol: 0 RC5, 1 RCMM (default)");

 static int ir_inversion[AV_CNT];
 module_param_array(ir_inversion, int, NULL, 0644);
 MODULE_PARM_DESC(ir_inversion, "Inversion of infrared signal: 0 not inverted (default), 1 inverted");

 static uint ir_device_mask[AV_CNT] = { IR_ALL, IR_ALL, IR_ALL, IR_ALL };
 module_param_array(ir_device_mask, uint, NULL, 0644);
 MODULE_PARM_DESC(ir_device_mask, "Bitmask of infrared devices: bit 0..31 = device 0..31 (default: all)");


 static int av_cnt;
 static struct av7110 *av_list[AV_CNT];

 static u16 default_key_map [256] = {
 	KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7,
 	KEY_8, KEY_9, KEY_BACK, 0, KEY_POWER, KEY_MUTE, 0, KEY_INFO,
 	KEY_VOLUMEUP, KEY_VOLUMEDOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	KEY_CHANNELUP, KEY_CHANNELDOWN, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, KEY_TEXT, 0, 0, KEY_TV, 0, 0, 0, 0, 0, KEY_SETUP, 0, 0,
 	0, 0, 0, KEY_SUBTITLE, 0, 0, KEY_LANGUAGE, 0,
 	KEY_RADIO, 0, 0, 0, 0, KEY_EXIT, 0, 0,
 	KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_OK, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RED, KEY_GREEN, KEY_YELLOW,
 	KEY_BLUE, 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_LIST, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, KEY_UP, KEY_UP, KEY_DOWN, KEY_DOWN,
 	0, 0, 0, 0, KEY_EPG, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_VCR
 };


 /* key-up timer */
 static void av7110_emit_keyup(unsigned long parm)
 {
 	struct infrared *ir = (struct infrared *) parm;

 	if (!ir || !test_bit(ir->last_key, ir->input_dev->key))
 		return;

 	input_report_key(ir->input_dev, ir->last_key, 0);
 	input_sync(ir->input_dev);
 }


 /* tasklet */
 static void av7110_emit_key(unsigned long parm)
 {
 	struct infrared *ir = (struct infrared *) parm;
 	u32 ircom = ir->ir_command;
 	u8 data;
 	u8 addr;
 	u16 toggle;
 	u16 keycode;

 	/* extract device address and data */
 	switch (ir->protocol) {
 	case IR_RC5: /* RC5: 5 bits device address, 6 bits data */
 		data = ircom & 0x3f;
 		addr = (ircom >> 6) & 0x1f;
 		toggle = ircom & 0x0800;
 		break;

 	case IR_RCMM: /* RCMM: ? bits device address, ? bits data */
 		data = ircom & 0xff;
 		addr = (ircom >> 8) & 0x1f;
 		toggle = ircom & 0x8000;
 		break;

 	case IR_RC5_EXT: /* extended RC5: 5 bits device address, 7 bits data */
 		data = ircom & 0x3f;
 		addr = (ircom >> 6) & 0x1f;
 		/* invert 7th data bit for backward compatibility with RC5 keymaps */
 		if (!(ircom & 0x1000))
 			data |= 0x40;
 		toggle = ircom & 0x0800;
 		break;

 	default:
 		printk("%s invalid protocol %x\n", __FUNCTION__, ir->protocol);
 		return;
 	}

 	input_event(ir->input_dev, EV_MSC, MSC_RAW, (addr << 16) | data);
 	input_event(ir->input_dev, EV_MSC, MSC_SCAN, data);

 	keycode = ir->key_map[data];

 	dprintk(16, "%s: code %08x -> addr %i data 0x%02x -> keycode %i\n",
 		__FUNCTION__, ircom, addr, data, keycode);

 	/* check device address */
 	if (!(ir->device_mask & (1 << addr)))
 		return;

 	if (!keycode) {
 		printk ("%s: code %08x -> addr %i data 0x%02x -> unknown key!\n",
 			__FUNCTION__, ircom, addr, data);
 		return;
 	}

 	if (timer_pending(&ir->keyup_timer)) {
 		del_timer(&ir->keyup_timer);
 		if (ir->last_key != keycode || toggle != ir->last_toggle) {
 			ir->delay_timer_finished = 0;
 			input_event(ir->input_dev, EV_KEY, ir->last_key, 0);
 			input_event(ir->input_dev, EV_KEY, keycode, 1);
 			input_sync(ir->input_dev);
 		} else if (ir->delay_timer_finished) {
 			input_event(ir->input_dev, EV_KEY, keycode, 2);
 			input_sync(ir->input_dev);
 		}
 	} else {
 		ir->delay_timer_finished = 0;
 		input_event(ir->input_dev, EV_KEY, keycode, 1);
 		input_sync(ir->input_dev);
 	}

 	ir->last_key = keycode;
 	ir->last_toggle = toggle;

 	ir->keyup_timer.expires = jiffies + UP_TIMEOUT;
 	add_timer(&ir->keyup_timer);

 }


 /* register with input layer */
 static void input_register_keys(struct infrared *ir)
 {
 	int i;

 	set_bit(EV_KEY, ir->input_dev->evbit);
 	set_bit(EV_REP, ir->input_dev->evbit);
 	set_bit(EV_MSC, ir->input_dev->evbit);

 	set_bit(MSC_RAW, ir->input_dev->mscbit);
 	set_bit(MSC_SCAN, ir->input_dev->mscbit);

 	memset(ir->input_dev->keybit, 0, sizeof(ir->input_dev->keybit));

 	for (i = 0; i < ARRAY_SIZE(ir->key_map); i++) {
 		if (ir->key_map[i] > KEY_MAX)
 			ir->key_map[i] = 0;
 		else if (ir->key_map[i] > KEY_RESERVED)
 			set_bit(ir->key_map[i], ir->input_dev->keybit);
 	}

 	ir->input_dev->keycode = ir->key_map;
 	ir->input_dev->keycodesize = sizeof(ir->key_map[0]);
 	ir->input_dev->keycodemax = ARRAY_SIZE(ir->key_map);
 }


 /* called by the input driver after rep[REP_DELAY] ms */
 static void input_repeat_key(unsigned long parm)
 {
 	struct infrared *ir = (struct infrared *) parm;

 	ir->delay_timer_finished = 1;
 }


 /* check for configuration changes */
 int av7110_check_ir_config(struct av7110 *av7110, int force)
 {
 	int i;
 	int modified = force;
 	int ret = -ENODEV;

 	for (i = 0; i < av_cnt; i++)
 		if (av7110 == av_list[i])
 			break;

 	if (i < av_cnt && av7110) {
 		if ((av7110->ir.protocol & 1) != ir_protocol[i] ||
 		    av7110->ir.inversion != ir_inversion[i])
 			modified = true;

 		if (modified) {
 			/* protocol */
 			if (ir_protocol[i]) {
 				ir_protocol[i] = 1;
 				av7110->ir.protocol = IR_RCMM;
 				av7110->ir.ir_config = 0x0001;
 			} else if (FW_VERSION(av7110->arm_app) >= 0x2620) {
 				av7110->ir.protocol = IR_RC5_EXT;
 				av7110->ir.ir_config = 0x0002;
 			} else {
 				av7110->ir.protocol = IR_RC5;
 				av7110->ir.ir_config = 0x0000;
 			}
 			/* inversion */
 			if (ir_inversion[i]) {
 				ir_inversion[i] = 1;
 				av7110->ir.ir_config |= 0x8000;
 			}
 			av7110->ir.inversion = ir_inversion[i];
 			/* update ARM */
 			ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetIR, 1,
 						av7110->ir.ir_config);
 		} else
 			ret = 0;

 		/* address */
 		if (av7110->ir.device_mask != ir_device_mask[i])
 			av7110->ir.device_mask = ir_device_mask[i];
 	}

 	return ret;
 }


 /* /proc/av7110_ir interface */
 static int av7110_ir_write_proc(struct file *file, const char __user *buffer,
 				unsigned long count, void *data)
 {
 	char *page;
 	u32 ir_config;
 	int size = sizeof ir_config + sizeof av_list[0]->ir.key_map;
 	int i;

 	if (count < size)
 		return -EINVAL;

 	page = (char *) vmalloc(size);
 	if (!page)
 		return -ENOMEM;

 	if (copy_from_user(page, buffer, size)) {
 		vfree(page);
 		return -EFAULT;
 	}

 	memcpy(&ir_config, page, sizeof ir_config);

 	for (i = 0; i < av_cnt; i++) {
 		/* keymap */
 		memcpy(av_list[i]->ir.key_map, page + sizeof ir_config,
 			sizeof(av_list[i]->ir.key_map));
 		/* protocol, inversion, address */
 		ir_protocol[i] = ir_config & 0x0001;
 		ir_inversion[i] = ir_config & 0x8000 ? 1 : 0;
 		if (ir_config & 0x4000)
 			ir_device_mask[i] = 1 << ((ir_config >> 16) & 0x1f);
 		else
 			ir_device_mask[i] = IR_ALL;
 		/* update configuration */
 		av7110_check_ir_config(av_list[i], false);
 		input_register_keys(&av_list[i]->ir);
 	}
 	vfree(page);
 	return count;
 }


 /* interrupt handler */
 static void ir_handler(struct av7110 *av7110, u32 ircom)
 {
 	dprintk(4, "ir command = %08x\n", ircom);
 	av7110->ir.ir_command = ircom;
 	tasklet_schedule(&av7110->ir.ir_tasklet);
 }


 int __devinit av7110_ir_init(struct av7110 *av7110)
 {
 	struct input_dev *input_dev;
 	static struct proc_dir_entry *e;
 	int err;

 	if (av_cnt >= ARRAY_SIZE(av_list))
 		return -ENOSPC;

 	av_list[av_cnt++] = av7110;
 	av7110_check_ir_config(av7110, true);

 	init_timer(&av7110->ir.keyup_timer);
 	av7110->ir.keyup_timer.function = av7110_emit_keyup;
 	av7110->ir.keyup_timer.data = (unsigned long) &av7110->ir;

 	input_dev = input_allocate_device();
 	if (!input_dev)
 		return -ENOMEM;

 	av7110->ir.input_dev = input_dev;
 	snprintf(av7110->ir.input_phys, sizeof(av7110->ir.input_phys),
 		"pci-%s/ir0", pci_name(av7110->dev->pci));

 	input_dev->name = "DVB on-card IR receiver";

 	input_dev->phys = av7110->ir.input_phys;
 	input_dev->id.bustype = BUS_PCI;
 	input_dev->id.version = 2;
 	if (av7110->dev->pci->subsystem_vendor) {
 		input_dev->id.vendor = av7110->dev->pci->subsystem_vendor;
 		input_dev->id.product = av7110->dev->pci->subsystem_device;
 	} else {
 		input_dev->id.vendor = av7110->dev->pci->vendor;
 		input_dev->id.product = av7110->dev->pci->device;
 	}
 	input_dev->cdev.dev = &av7110->dev->pci->dev;
 	/* initial keymap */
 	memcpy(av7110->ir.key_map, default_key_map, sizeof av7110->ir.key_map);
 	input_register_keys(&av7110->ir);
 	err = input_register_device(input_dev);
 	if (err) {
 		input_free_device(input_dev);
 		return err;
 	}
 	input_dev->timer.function = input_repeat_key;
 	input_dev->timer.data = (unsigned long) &av7110->ir;

 	if (av_cnt == 1) {
 		e = create_proc_entry("av7110_ir", S_IFREG | S_IRUGO | S_IWUSR, NULL);
 		if (e) {
 			e->write_proc = av7110_ir_write_proc;
 			e->size = 4 + 256 * sizeof(u16);
 		}
 	}

 	tasklet_init(&av7110->ir.ir_tasklet, av7110_emit_key, (unsigned long) &av7110->ir);
 	av7110->ir.ir_handler = ir_handler;

 	return 0;
 }


 void __devexit av7110_ir_exit(struct av7110 *av7110)
 {
 	int i;

 	if (av_cnt == 0)
 		return;

 	del_timer_sync(&av7110->ir.keyup_timer);
 	av7110->ir.ir_handler = NULL;
 	tasklet_kill(&av7110->ir.ir_tasklet);

 	for (i = 0; i < av_cnt; i++)
 		if (av_list[i] == av7110) {
 			av_list[i] = av_list[av_cnt-1];
 			av_list[av_cnt-1] = NULL;
 			break;
 		}

 	if (av_cnt == 1)
 		remove_proc_entry("av7110_ir", NULL);

 	input_unregister_device(av7110->ir.input_dev);

 	av_cnt--;
 }

 //MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>, Oliver Endriss <o.endriss@gmx.de>");
 //MODULE_LICENSE("GPL");
	/*
	* Driver for the remote control of SAA7146 based AV7110 cards
	*
	* Copyright (C) 1999-2003 Holger Waechtler <holger@convergence.de>
	* Copyright (C) 2003-2007 Oliver Endriss <o.endriss@gmx.de>
	*
	* 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.
	* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
	*
	*/


	#include <linux/types.h>
	#include <linux/init.h>
	#include <linux/module.h>
	#include <linux/moduleparam.h>
	#include <linux/proc_fs.h>
	#include <linux/kernel.h>
	#include <asm/bitops.h>

	#include "av7110.h"
	#include "av7110_hw.h"


	#define AV_CNT 4

	#define IR_RC5 0
	#define IR_RCMM 1
	#define IR_RC5_EXT 2 /* internal only */

	#define IR_ALL 0xffffffff

	#define UP_TIMEOUT (HZ*7/25)


	/* Note: enable ir debugging by or'ing debug with 16 */

	static int ir_protocol[AV_CNT] = { IR_RCMM, IR_RCMM, IR_RCMM, IR_RCMM};
	module_param_array(ir_protocol, int, NULL, 0644);
	MODULE_PARM_DESC(ir_protocol, "Infrared protocol: 0 RC5, 1 RCMM (default)");

	static int ir_inversion[AV_CNT];
	module_param_array(ir_inversion, int, NULL, 0644);
	MODULE_PARM_DESC(ir_inversion, "Inversion of infrared signal: 0 not inverted (default), 1 inverted");

	static uint ir_device_mask[AV_CNT] = { IR_ALL, IR_ALL, IR_ALL, IR_ALL };
	module_param_array(ir_device_mask, uint, NULL, 0644);
	MODULE_PARM_DESC(ir_device_mask, "Bitmask of infrared devices: bit 0..31 = device 0..31 (default: all)");


	static int av_cnt;
	static struct av7110 *av_list[AV_CNT];

	static u16 default_key_map [256] = {
	KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7,
	KEY_8, KEY_9, KEY_BACK, 0, KEY_POWER, KEY_MUTE, 0, KEY_INFO,
	KEY_VOLUMEUP, KEY_VOLUMEDOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	KEY_CHANNELUP, KEY_CHANNELDOWN, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, KEY_TEXT, 0, 0, KEY_TV, 0, 0, 0, 0, 0, KEY_SETUP, 0, 0,
	0, 0, 0, KEY_SUBTITLE, 0, 0, KEY_LANGUAGE, 0,
	KEY_RADIO, 0, 0, 0, 0, KEY_EXIT, 0, 0,
	KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_OK, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RED, KEY_GREEN, KEY_YELLOW,
	KEY_BLUE, 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_LIST, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, KEY_UP, KEY_UP, KEY_DOWN, KEY_DOWN,
	0, 0, 0, 0, KEY_EPG, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_VCR
	};


	/* key-up timer */
	static void av7110_emit_keyup(unsigned long parm)
	{
	struct infrared ir = (struct infrared ) parm;

	if (!ir \|\| !test_bit(ir->last_key, ir->input_dev->key))
	return;

	input_report_key(ir->input_dev, ir->last_key, 0);
	input_sync(ir->input_dev);
	}


	/* tasklet */
	static void av7110_emit_key(unsigned long parm)
	{
	struct infrared ir = (struct infrared ) parm;
	u32 ircom = ir->ir_command;
	u8 data;
	u8 addr;
	u16 toggle;
	u16 keycode;

	/* extract device address and data */
	switch (ir->protocol) {
	case IR_RC5: /* RC5: 5 bits device address, 6 bits data */
	data = ircom & 0x3f;
	addr = (ircom >> 6) & 0x1f;
	toggle = ircom & 0x0800;
	break;

	case IR_RCMM: /* RCMM: ? bits device address, ? bits data */
	data = ircom & 0xff;
	addr = (ircom >> 8) & 0x1f;
	toggle = ircom & 0x8000;
	break;

	case IR_RC5_EXT: /* extended RC5: 5 bits device address, 7 bits data */
	data = ircom & 0x3f;
	addr = (ircom >> 6) & 0x1f;
	/* invert 7th data bit for backward compatibility with RC5 keymaps */
	if (!(ircom & 0x1000))
	data \|= 0x40;
	toggle = ircom & 0x0800;
	break;

	default:
	printk("%s invalid protocol %x\n", __FUNCTION__, ir->protocol);
	return;
	}

	input_event(ir->input_dev, EV_MSC, MSC_RAW, (addr << 16) \| data);
	input_event(ir->input_dev, EV_MSC, MSC_SCAN, data);

	keycode = ir->key_map[data];

	dprintk(16, "%s: code %08x -> addr %i data 0x%02x -> keycode %i\n",
	__FUNCTION__, ircom, addr, data, keycode);

	/* check device address */
	if (!(ir->device_mask & (1 << addr)))
	return;

	if (!keycode) {
	printk ("%s: code %08x -> addr %i data 0x%02x -> unknown key!\n",
	__FUNCTION__, ircom, addr, data);
	return;
	}

	if (timer_pending(&ir->keyup_timer)) {
	del_timer(&ir->keyup_timer);
	if (ir->last_key != keycode \|\| toggle != ir->last_toggle) {
	ir->delay_timer_finished = 0;
	input_event(ir->input_dev, EV_KEY, ir->last_key, 0);
	input_event(ir->input_dev, EV_KEY, keycode, 1);
	input_sync(ir->input_dev);
	} else if (ir->delay_timer_finished) {
	input_event(ir->input_dev, EV_KEY, keycode, 2);
	input_sync(ir->input_dev);
	}
	} else {
	ir->delay_timer_finished = 0;
	input_event(ir->input_dev, EV_KEY, keycode, 1);
	input_sync(ir->input_dev);
	}

	ir->last_key = keycode;
	ir->last_toggle = toggle;

	ir->keyup_timer.expires = jiffies + UP_TIMEOUT;
	add_timer(&ir->keyup_timer);

	}


	/* register with input layer */
	static void input_register_keys(struct infrared *ir)
	{
	int i;

	set_bit(EV_KEY, ir->input_dev->evbit);
	set_bit(EV_REP, ir->input_dev->evbit);
	set_bit(EV_MSC, ir->input_dev->evbit);

	set_bit(MSC_RAW, ir->input_dev->mscbit);
	set_bit(MSC_SCAN, ir->input_dev->mscbit);

	memset(ir->input_dev->keybit, 0, sizeof(ir->input_dev->keybit));

	for (i = 0; i < ARRAY_SIZE(ir->key_map); i++) {
	if (ir->key_map[i] > KEY_MAX)
	ir->key_map[i] = 0;
	else if (ir->key_map[i] > KEY_RESERVED)
	set_bit(ir->key_map[i], ir->input_dev->keybit);
	}

	ir->input_dev->keycode = ir->key_map;
	ir->input_dev->keycodesize = sizeof(ir->key_map[0]);
	ir->input_dev->keycodemax = ARRAY_SIZE(ir->key_map);
	}


	/* called by the input driver after rep[REP_DELAY] ms */
	static void input_repeat_key(unsigned long parm)
	{
	struct infrared ir = (struct infrared ) parm;

	ir->delay_timer_finished = 1;
	}


	/* check for configuration changes */
	int av7110_check_ir_config(struct av7110 *av7110, int force)
	{
	int i;
	int modified = force;
	int ret = -ENODEV;

	for (i = 0; i < av_cnt; i++)
	if (av7110 == av_list[i])
	break;

	if (i < av_cnt && av7110) {
	if ((av7110->ir.protocol & 1) != ir_protocol[i] \|\|
	av7110->ir.inversion != ir_inversion[i])
	modified = true;

	if (modified) {
	/* protocol */
	if (ir_protocol[i]) {
	ir_protocol[i] = 1;
	av7110->ir.protocol = IR_RCMM;
	av7110->ir.ir_config = 0x0001;
	} else if (FW_VERSION(av7110->arm_app) >= 0x2620) {
	av7110->ir.protocol = IR_RC5_EXT;
	av7110->ir.ir_config = 0x0002;
	} else {
	av7110->ir.protocol = IR_RC5;
	av7110->ir.ir_config = 0x0000;
	}
	/* inversion */
	if (ir_inversion[i]) {
	ir_inversion[i] = 1;
	av7110->ir.ir_config \|= 0x8000;
	}
	av7110->ir.inversion = ir_inversion[i];
	/* update ARM */
	ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetIR, 1,
	av7110->ir.ir_config);
	} else
	ret = 0;

	/* address */
	if (av7110->ir.device_mask != ir_device_mask[i])
	av7110->ir.device_mask = ir_device_mask[i];
	}

	return ret;
	}


	/* /proc/av7110_ir interface */
	static int av7110_ir_write_proc(struct file file, const char __user buffer,
	unsigned long count, void *data)
	{
	char *page;
	u32 ir_config;
	int size = sizeof ir_config + sizeof av_list[0]->ir.key_map;
	int i;

	if (count < size)
	return -EINVAL;

	page = (char *) vmalloc(size);
	if (!page)
	return -ENOMEM;

	if (copy_from_user(page, buffer, size)) {
	vfree(page);
	return -EFAULT;
	}

	memcpy(&ir_config, page, sizeof ir_config);

	for (i = 0; i < av_cnt; i++) {
	/* keymap */
	memcpy(av_list[i]->ir.key_map, page + sizeof ir_config,
	sizeof(av_list[i]->ir.key_map));
	/* protocol, inversion, address */
	ir_protocol[i] = ir_config & 0x0001;
	ir_inversion[i] = ir_config & 0x8000 ? 1 : 0;
	if (ir_config & 0x4000)
	ir_device_mask[i] = 1 << ((ir_config >> 16) & 0x1f);
	else
	ir_device_mask[i] = IR_ALL;
	/* update configuration */
	av7110_check_ir_config(av_list[i], false);
	input_register_keys(&av_list[i]->ir);
	}
	vfree(page);
	return count;
	}


	/* interrupt handler */
	static void ir_handler(struct av7110 *av7110, u32 ircom)
	{
	dprintk(4, "ir command = %08x\n", ircom);
	av7110->ir.ir_command = ircom;
	tasklet_schedule(&av7110->ir.ir_tasklet);
	}


	int __devinit av7110_ir_init(struct av7110 *av7110)
	{
	struct input_dev *input_dev;
	static struct proc_dir_entry *e;
	int err;

	if (av_cnt >= ARRAY_SIZE(av_list))
	return -ENOSPC;

	av_list[av_cnt++] = av7110;
	av7110_check_ir_config(av7110, true);

	init_timer(&av7110->ir.keyup_timer);
	av7110->ir.keyup_timer.function = av7110_emit_keyup;
	av7110->ir.keyup_timer.data = (unsigned long) &av7110->ir;

	input_dev = input_allocate_device();
	if (!input_dev)
	return -ENOMEM;

	av7110->ir.input_dev = input_dev;
	snprintf(av7110->ir.input_phys, sizeof(av7110->ir.input_phys),
	"pci-%s/ir0", pci_name(av7110->dev->pci));

	input_dev->name = "DVB on-card IR receiver";

	input_dev->phys = av7110->ir.input_phys;
	input_dev->id.bustype = BUS_PCI;
	input_dev->id.version = 2;
	if (av7110->dev->pci->subsystem_vendor) {
	input_dev->id.vendor = av7110->dev->pci->subsystem_vendor;
	input_dev->id.product = av7110->dev->pci->subsystem_device;
	} else {
	input_dev->id.vendor = av7110->dev->pci->vendor;
	input_dev->id.product = av7110->dev->pci->device;
	}
	input_dev->cdev.dev = &av7110->dev->pci->dev;
	/* initial keymap */
	memcpy(av7110->ir.key_map, default_key_map, sizeof av7110->ir.key_map);
	input_register_keys(&av7110->ir);
	err = input_register_device(input_dev);
	if (err) {
	input_free_device(input_dev);
	return err;
	}
	input_dev->timer.function = input_repeat_key;
	input_dev->timer.data = (unsigned long) &av7110->ir;

	if (av_cnt == 1) {
	e = create_proc_entry("av7110_ir", S_IFREG \| S_IRUGO \| S_IWUSR, NULL);
	if (e) {
	e->write_proc = av7110_ir_write_proc;
	e->size = 4 + 256 * sizeof(u16);
	}
	}

	tasklet_init(&av7110->ir.ir_tasklet, av7110_emit_key, (unsigned long) &av7110->ir);
	av7110->ir.ir_handler = ir_handler;

	return 0;
	}


	void __devexit av7110_ir_exit(struct av7110 *av7110)
	{
	int i;

	if (av_cnt == 0)
	return;

	del_timer_sync(&av7110->ir.keyup_timer);
	av7110->ir.ir_handler = NULL;
	tasklet_kill(&av7110->ir.ir_tasklet);

	for (i = 0; i < av_cnt; i++)
	if (av_list[i] == av7110) {
	av_list[i] = av_list[av_cnt-1];
	av_list[av_cnt-1] = NULL;
	break;
	}

	if (av_cnt == 1)
	remove_proc_entry("av7110_ir", NULL);

	input_unregister_device(av7110->ir.input_dev);

	av_cnt--;
	}

	//MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>, Oliver Endriss <o.endriss@gmx.de>");
	//MODULE_LICENSE("GPL");