text: /*
   *
   * handle saa7134 IR remotes via linux kernel input layer.
   *
   * 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.
   *
   */
  
  #include "saa7134.h"
  #include "saa7134-reg.h"
  
  #include <linux/module.h>
  #include <linux/init.h>
  #include <linux/delay.h>
  #include <linux/interrupt.h>
  #include <linux/slab.h>
  
  #define MODULE_NAME "saa7134"
  
  static unsigned int disable_ir;
  module_param(disable_ir, int, 0444);
  MODULE_PARM_DESC(disable_ir,"disable infrared remote support");
  
  static unsigned int ir_debug;
  module_param(ir_debug, int, 0644);
  MODULE_PARM_DESC(ir_debug,"enable debug messages [IR]");
  
  static int pinnacle_remote;
  module_param(pinnacle_remote, int, 0644);    /* Choose Pinnacle PCTV remote */
  MODULE_PARM_DESC(pinnacle_remote, "Specify Pinnacle PCTV remote: 0=coloured, 1=grey (defaults to 0)");
  
  #define input_dbg(fmt, arg...) do { \
  	if (ir_debug) \
  		printk(KERN_DEBUG pr_fmt("input: " fmt), ## arg); \
  	} while (0)
  #define ir_dbg(ir, fmt, arg...) do { \
  	if (ir_debug) \
  		printk(KERN_DEBUG pr_fmt("ir %s: " fmt), ir->rc->device_name, \
  		       ## arg); \
  	} while (0)
  
  /* Helper function for raw decoding at GPIO16 or GPIO18 */
  static int saa7134_raw_decode_irq(struct saa7134_dev *dev);
  
  /* -------------------- GPIO generic keycode builder -------------------- */
  
  static int build_key(struct saa7134_dev *dev)
  {
  	struct saa7134_card_ir *ir = dev->remote;
  	u32 gpio, data;
  
  	/* here comes the additional handshake steps for some cards */
  	switch (dev->board) {
  	case SAA7134_BOARD_GOTVIEW_7135:
  		saa_setb(SAA7134_GPIO_GPSTATUS1, 0x80);
  		saa_clearb(SAA7134_GPIO_GPSTATUS1, 0x80);
  		break;
  	}
  	/* rising SAA7134_GPIO_GPRESCAN reads the status */
  	saa_clearb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  	saa_setb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN);
  
  	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
  	if (ir->polling) {
  		if (ir->last_gpio == gpio)
  			return 0;
  		ir->last_gpio = gpio;
  	}
  
  	data = ir_extract_bits(gpio, ir->mask_keycode);
  	input_dbg("build_key gpio=0x%x mask=0x%x data=%d\n",
  		gpio, ir->mask_keycode, data);
  
  	switch (dev->board) {
  	case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
  		if (data == ir->mask_keycode)
  			rc_keyup(ir->dev);
  		else
  			rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data,
  					     0);
  		return 0;
  	}
  
  	if (ir->polling) {
  		if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
  		    (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
  			rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data,
  					     0);
  		} else {
  			rc_keyup(ir->dev);
  		}
  	}
  	else {	/* IRQ driven mode - handle key press and release in one go */
  		if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
  		    (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
  			rc_keydown_notimeout(ir->dev, RC_PROTO_UNKNOWN, data,
  					     0);
  			rc_keyup(ir->dev);
  		}
  	}
  
  	return 0;
  }
  
  /* --------------------- Chip specific I2C key builders ----------------- */
  
  static int get_key_flydvb_trio(struct IR_i2c *ir, enum rc_proto *protocol,
  			       u32 *scancode, u8 *toggle)
  {
  	int gpio, rc;
  	int attempt = 0;
  	unsigned char b;
  
  	/* We need this to access GPI Used by the saa_readl macro. */
  	struct saa7134_dev *dev = ir->c->adapter->algo_data;
  
  	if (dev == NULL) {
  		ir_dbg(ir, "get_key_flydvb_trio: ir->c->adapter->algo_data is NULL!\n");
  		return -EIO;
  	}
  
  	/* rising SAA7134_GPIGPRESCAN reads the status */
  	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
  	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
  
  	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
  
  	if (0x40000 & ~gpio)
  		return 0; /* No button press */
  
  	/* poll IR chip */
  	/* weak up the IR chip */
  	b = 0;
  
  	while (1 != i2c_master_send(ir->c, &b, 1)) {
  		if ((attempt++) < 10) {
  			/*
  			 * wait a bit for next attempt -
  			 * I don't know how make it better
  			 */
  			msleep(10);
  			continue;
  		}
  		ir_dbg(ir, "send wake up byte to pic16C505 (IR chip)failed %dx\n",
  		       attempt);
  		return -EIO;
  	}
  	rc = i2c_master_recv(ir->c, &b, 1);
  	if (rc != 1) {
  		ir_dbg(ir, "read error\n");
  		if (rc < 0)
  			return rc;
  		return -EIO;
  	}
  
  	*protocol = RC_PROTO_UNKNOWN;
  	*scancode = b;
  	*toggle = 0;
  	return 1;
  }
  
  static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir,
  				       enum rc_proto *protocol,
  				       u32 *scancode, u8 *toggle)
  {
  	unsigned char b;
  	int gpio, rc;
  
  	/* <dev> is needed to access GPIO. Used by the saa_readl macro. */
  	struct saa7134_dev *dev = ir->c->adapter->algo_data;
  	if (dev == NULL) {
  		ir_dbg(ir, "get_key_msi_tvanywhere_plus: ir->c->adapter->algo_data is NULL!\n");
  		return -EIO;
  	}
  
  	/* rising SAA7134_GPIO_GPRESCAN reads the status */
  
  	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
  	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
  
  	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
  
  	/* GPIO&0x40 is pulsed low when a button is pressed. Don't do
  	   I2C receive if gpio&0x40 is not low. */
  
  	if (gpio & 0x40)
  		return 0;       /* No button press */
  
  	/* GPIO says there is a button press. Get it. */
  
  	rc = i2c_master_recv(ir->c, &b, 1);
  	if (rc != 1) {
  		ir_dbg(ir, "read error\n");
  		if (rc < 0)
  			return rc;
  		return -EIO;
  	}
  
  	/* No button press */
  
  	if (b == 0xff)
  		return 0;
  
  	/* Button pressed */
  
  	input_dbg("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
  	*protocol = RC_PROTO_UNKNOWN;
  	*scancode = b;
  	*toggle = 0;
  	return 1;
  }
  
  /* copied and modified from get_key_msi_tvanywhere_plus() */
  static int get_key_kworld_pc150u(struct IR_i2c *ir, enum rc_proto *protocol,
  				 u32 *scancode, u8 *toggle)
  {
  	unsigned char b;
  	unsigned int gpio;
  	int rc;
  
  	/* <dev> is needed to access GPIO. Used by the saa_readl macro. */
  	struct saa7134_dev *dev = ir->c->adapter->algo_data;
  	if (dev == NULL) {
  		ir_dbg(ir, "get_key_kworld_pc150u: ir->c->adapter->algo_data is NULL!\n");
  		return -EIO;
  	}
  
  	/* rising SAA7134_GPIO_GPRESCAN reads the status */
  
  	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
  	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
  
  	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
  
  	/* GPIO&0x100 is pulsed low when a button is pressed. Don't do
  	   I2C receive if gpio&0x100 is not low. */
  
  	if (gpio & 0x100)
  		return 0;       /* No button press */
  
  	/* GPIO says there is a button press. Get it. */
  
  	rc = i2c_master_recv(ir->c, &b, 1);
  	if (rc != 1) {
  		ir_dbg(ir, "read error\n");
  		if (rc < 0)
  			return rc;
  		return -EIO;
  	}
  
  	/* No button press */
  
  	if (b == 0xff)
  		return 0;
  
  	/* Button pressed */
  
  	input_dbg("get_key_kworld_pc150u: Key = 0x%02X\n", b);
  	*protocol = RC_PROTO_UNKNOWN;
  	*scancode = b;
  	*toggle = 0;
  	return 1;
  }
  
  static int get_key_purpletv(struct IR_i2c *ir, enum rc_proto *protocol,
  			    u32 *scancode, u8 *toggle)
  {
  	int rc;
  	unsigned char b;
  
  	/* poll IR chip */
  	rc = i2c_master_recv(ir->c, &b, 1);
  	if (rc != 1) {
  		ir_dbg(ir, "read error\n");
  		if (rc < 0)
  			return rc;
  		return -EIO;
  	}
  
  	/* no button press */
  	if (b==0)
  		return 0;
  
  	/* repeating */
  	if (b & 0x80)
  		return 1;
  
  	*protocol = RC_PROTO_UNKNOWN;
  	*scancode = b;
  	*toggle = 0;
  	return 1;
  }
  
  static int get_key_beholdm6xx(struct IR_i2c *ir, enum rc_proto *protocol,
  			      u32 *scancode, u8 *toggle)
  {
  	int rc;
  	unsigned char data[12];
  	u32 gpio;
  
  	struct saa7134_dev *dev = ir->c->adapter->algo_data;
  
  	/* rising SAA7134_GPIO_GPRESCAN reads the status */
  	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
  	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
  
  	gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2);
  
  	if (0x400000 & ~gpio)
  		return 0; /* No button press */
  
  	ir->c->addr = 0x5a >> 1;
  
  	rc = i2c_master_recv(ir->c, data, 12);
  	if (rc != 12) {
  		ir_dbg(ir, "read error\n");
  		if (rc < 0)
  			return rc;
  		return -EIO;
  	}
  
  	if (data[9] != (unsigned char)(~data[8]))
  		return 0;
  
  	*protocol = RC_PROTO_NECX;
  	*scancode = RC_SCANCODE_NECX(data[11] << 8 | data[10], data[9]);
  	*toggle = 0;
  	return 1;
  }
  
  /* Common (grey or coloured) pinnacle PCTV remote handling
   *
   */
  static int get_key_pinnacle(struct IR_i2c *ir, enum rc_proto *protocol,
  			    u32 *scancode, u8 *toggle, int parity_offset,
  			    int marker, int code_modulo)
  {
  	int rc;
  	unsigned char b[4];
  	unsigned int start = 0,parity = 0,code = 0;
  
  	/* poll IR chip */
  	rc = i2c_master_recv(ir->c, b, 4);
  	if (rc != 4) {
  		ir_dbg(ir, "read error\n");
  		if (rc < 0)
  			return rc;
  		return -EIO;
  	}
  
  	for (start = 0; start < ARRAY_SIZE(b); start++) {
  		if (b[start] == marker) {
  			code=b[(start+parity_offset + 1) % 4];
  			parity=b[(start+parity_offset) % 4];
  		}
  	}
  
  	/* Empty Request */
  	if (parity == 0)
  		return 0;
  
  	/* Repeating... */
  	if (ir->old == parity)
  		return 0;
  
  	ir->old = parity;
  
  	/* drop special codes when a key is held down a long time for the grey controller
  	   In this case, the second bit of the code is asserted */
  	if (marker == 0xfe && (code & 0x40))
  		return 0;
  
  	code %= code_modulo;
  
  	*protocol = RC_PROTO_UNKNOWN;
  	*scancode = code;
  	*toggle = 0;
  
  	ir_dbg(ir, "Pinnacle PCTV key %02x\n", code);
  	return 1;
  }
  
  /* The grey pinnacle PCTV remote
   *
   *  There are one issue with this remote:
   *   - I2c packet does not change when the same key is pressed quickly. The workaround
   *     is to hold down each key for about half a second, so that another code is generated
   *     in the i2c packet, and the function can distinguish key presses.
   *
   * Sylvain Pasche <sylvain.pasche@gmail.com>
   */
  static int get_key_pinnacle_grey(struct IR_i2c *ir, enum rc_proto *protocol,
  				 u32 *scancode, u8 *toggle)
  {
  
  	return get_key_pinnacle(ir, protocol, scancode, toggle, 1, 0xfe, 0xff);
  }
  
  
  /* The new pinnacle PCTV remote (with the colored buttons)
   *
   * Ricardo Cerqueira <v4l@cerqueira.org>
   */
  static int get_key_pinnacle_color(struct IR_i2c *ir, enum rc_proto *protocol,
  				  u32 *scancode, u8 *toggle)
  {
  	/* code_modulo parameter (0x88) is used to reduce code value to fit inside IR_KEYTAB_SIZE
  	 *
  	 * this is the only value that results in 42 unique
  	 * codes < 128
  	 */
  
  	return get_key_pinnacle(ir, protocol, scancode, toggle, 2, 0x80, 0x88);
  }
  
  void saa7134_input_irq(struct saa7134_dev *dev)
  {
  	struct saa7134_card_ir *ir;
  
  	if (!dev || !dev->remote)
  		return;
  
  	ir = dev->remote;
  	if (!ir->running)
  		return;
  
  	if (!ir->polling && !ir->raw_decode) {
  		build_key(dev);
  	} else if (ir->raw_decode) {
  		saa7134_raw_decode_irq(dev);
  	}
  }
  
  static void saa7134_input_timer(struct timer_list *t)
  {
  	struct saa7134_card_ir *ir = from_timer(ir, t, timer);
  	struct saa7134_dev *dev = ir->dev->priv;
  
  	build_key(dev);
  	mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
  }
  
  int saa7134_ir_open(struct rc_dev *rc)
  {
  	struct saa7134_dev *dev = rc->priv;
  	struct saa7134_card_ir *ir = dev->remote;
  
  	/* Moved here from saa7134_input_init1() because the latter
  	 * is not called on device resume */
  	switch (dev->board) {
  	case SAA7134_BOARD_MD2819:
  	case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
  	case SAA7134_BOARD_AVERMEDIA_305:
  	case SAA7134_BOARD_AVERMEDIA_307:
  	case SAA7134_BOARD_AVERMEDIA_505:
  	case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
  	case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
  	case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
  	case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
  	case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
  	case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
  	case SAA7134_BOARD_AVERMEDIA_M102:
  	case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
  		/* Without this we won't receive key up events */
  		saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
  		saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
  		break;
  	case SAA7134_BOARD_AVERMEDIA_777:
  	case SAA7134_BOARD_AVERMEDIA_A16AR:
  		/* Without this we won't receive key up events */
  		saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
  		saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
  		break;
  	case SAA7134_BOARD_AVERMEDIA_A16D:
  		/* Without this we won't receive key up events */
  		saa_setb(SAA7134_GPIO_GPMODE1, 0x1);
  		saa_setb(SAA7134_GPIO_GPSTATUS1, 0x1);
  		break;
  	case SAA7134_BOARD_GOTVIEW_7135:
  		saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
  		break;
  	}
  
  	ir->running = true;
  
  	if (ir->polling) {
  		timer_setup(&ir->timer, saa7134_input_timer, 0);
  		ir->timer.expires = jiffies + HZ;
  		add_timer(&ir->timer);
  	}
  
  	return 0;
  }
  
  void saa7134_ir_close(struct rc_dev *rc)
  {
  	struct saa7134_dev *dev = rc->priv;
  	struct saa7134_card_ir *ir = dev->remote;
  
  	if (ir->polling)
  		del_timer_sync(&ir->timer);
  
  	ir->running = false;
  }
  
  int saa7134_input_init1(struct saa7134_dev *dev)
  {
  	struct saa7134_card_ir *ir;
  	struct rc_dev *rc;
  	char *ir_codes = NULL;
  	u32 mask_keycode = 0;
  	u32 mask_keydown = 0;
  	u32 mask_keyup   = 0;
  	unsigned polling = 0;
  	bool raw_decode  = false;
  	int err;
  
  	if (dev->has_remote != SAA7134_REMOTE_GPIO)
  		return -ENODEV;
  	if (disable_ir)
  		return -ENODEV;
  
  	/* detect & configure */
  	switch (dev->board) {
  	case SAA7134_BOARD_FLYVIDEO2000:
  	case SAA7134_BOARD_FLYVIDEO3000:
  	case SAA7134_BOARD_FLYTVPLATINUM_FM:
  	case SAA7134_BOARD_FLYTVPLATINUM_MINI2:
  	case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM:
  		ir_codes     = RC_MAP_FLYVIDEO;
  		mask_keycode = 0xEC00000;
  		mask_keydown = 0x0040000;
  		break;
  	case SAA7134_BOARD_CINERGY400:
  	case SAA7134_BOARD_CINERGY600:
  	case SAA7134_BOARD_CINERGY600_MK3:
  		ir_codes     = RC_MAP_CINERGY;
  		mask_keycode = 0x00003f;
  		mask_keyup   = 0x040000;
  		break;
  	case SAA7134_BOARD_ECS_TVP3XP:
  	case SAA7134_BOARD_ECS_TVP3XP_4CB5:
  		ir_codes     = RC_MAP_EZTV;
  		mask_keycode = 0x00017c;
  		mask_keyup   = 0x000002;
  		polling      = 50; // ms
  		break;
  	case SAA7134_BOARD_KWORLD_XPERT:
  	case SAA7134_BOARD_AVACSSMARTTV:
  		ir_codes     = RC_MAP_PIXELVIEW;
  		mask_keycode = 0x00001F;
  		mask_keyup   = 0x000020;
  		polling      = 50; // ms
  		break;
  	case SAA7134_BOARD_MD2819:
  	case SAA7134_BOARD_KWORLD_VSTREAM_XPERT:
  	case SAA7134_BOARD_AVERMEDIA_305:
  	case SAA7134_BOARD_AVERMEDIA_307:
  	case SAA7134_BOARD_AVERMEDIA_505:
  	case SAA7134_BOARD_AVERMEDIA_STUDIO_305:
  	case SAA7134_BOARD_AVERMEDIA_STUDIO_505:
  	case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
  	case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
  	case SAA7134_BOARD_AVERMEDIA_STUDIO_507UA:
  	case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
  	case SAA7134_BOARD_AVERMEDIA_M102:
  	case SAA7134_BOARD_AVERMEDIA_GO_007_FM_PLUS:
  		ir_codes     = RC_MAP_AVERMEDIA;
  		mask_keycode = 0x0007C8;
  		mask_keydown = 0x000010;
  		polling      = 50; // ms
  		/* GPIO stuff moved to saa7134_ir_open() */
  		break;
  	case SAA7134_BOARD_AVERMEDIA_M135A:
  		ir_codes     = RC_MAP_AVERMEDIA_M135A;
  		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
  		mask_keyup   = 0x0040000;
  		mask_keycode = 0xffff;
  		raw_decode   = true;
  		break;
  	case SAA7134_BOARD_AVERMEDIA_M733A:
  		ir_codes     = RC_MAP_AVERMEDIA_M733A_RM_K6;
  		mask_keydown = 0x0040000;
  		mask_keyup   = 0x0040000;
  		mask_keycode = 0xffff;
  		raw_decode   = true;
  		break;
  	case SAA7134_BOARD_AVERMEDIA_777:
  	case SAA7134_BOARD_AVERMEDIA_A16AR:
  		ir_codes     = RC_MAP_AVERMEDIA;
  		mask_keycode = 0x02F200;
  		mask_keydown = 0x000400;
  		polling      = 50; // ms
  		/* GPIO stuff moved to saa7134_ir_open() */
  		break;
  	case SAA7134_BOARD_AVERMEDIA_A16D:
  		ir_codes     = RC_MAP_AVERMEDIA_A16D;
  		mask_keycode = 0x02F200;
  		mask_keydown = 0x000400;
  		polling      = 50; /* ms */
  		/* GPIO stuff moved to saa7134_ir_open() */
  		break;
  	case SAA7134_BOARD_KWORLD_TERMINATOR:
  		ir_codes     = RC_MAP_PIXELVIEW;
  		mask_keycode = 0x00001f;
  		mask_keyup   = 0x000060;
  		polling      = 50; // ms
  		break;
  	case SAA7134_BOARD_MANLI_MTV001:
  	case SAA7134_BOARD_MANLI_MTV002:
  		ir_codes     = RC_MAP_MANLI;
  		mask_keycode = 0x001f00;
  		mask_keyup   = 0x004000;
  		polling      = 50; /* ms */
  		break;
  	case SAA7134_BOARD_BEHOLD_409FM:
  	case SAA7134_BOARD_BEHOLD_401:
  	case SAA7134_BOARD_BEHOLD_403:
  	case SAA7134_BOARD_BEHOLD_403FM:
  	case SAA7134_BOARD_BEHOLD_405:
  	case SAA7134_BOARD_BEHOLD_405FM:
  	case SAA7134_BOARD_BEHOLD_407:
  	case SAA7134_BOARD_BEHOLD_407FM:
  	case SAA7134_BOARD_BEHOLD_409:
  	case SAA7134_BOARD_BEHOLD_505FM:
  	case SAA7134_BOARD_BEHOLD_505RDS_MK5:
  	case SAA7134_BOARD_BEHOLD_505RDS_MK3:
  	case SAA7134_BOARD_BEHOLD_507_9FM:
  	case SAA7134_BOARD_BEHOLD_507RDS_MK3:
  	case SAA7134_BOARD_BEHOLD_507RDS_MK5:
  		ir_codes     = RC_MAP_MANLI;
  		mask_keycode = 0x003f00;
  		mask_keyup   = 0x004000;
  		polling      = 50; /* ms */
  		break;
  	case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
  		ir_codes     = RC_MAP_BEHOLD_COLUMBUS;
  		mask_keycode = 0x003f00;
  		mask_keyup   = 0x004000;
  		polling      = 50; // ms
  		break;
  	case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
  		ir_codes     = RC_MAP_PCTV_SEDNA;
  		mask_keycode = 0x001f00;
  		mask_keyup   = 0x004000;
  		polling      = 50; // ms
  		break;
  	case SAA7134_BOARD_GOTVIEW_7135:
  		ir_codes     = RC_MAP_GOTVIEW7135;
  		mask_keycode = 0x0003CC;
  		mask_keydown = 0x000010;
  		polling	     = 5; /* ms */
  		/* GPIO stuff moved to saa7134_ir_open() */
  		break;
  	case SAA7134_BOARD_VIDEOMATE_TV_PVR:
  	case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
  	case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
  		ir_codes     = RC_MAP_VIDEOMATE_TV_PVR;
  		mask_keycode = 0x00003F;
  		mask_keyup   = 0x400000;
  		polling      = 50; // ms
  		break;
  	case SAA7134_BOARD_PROTEUS_2309:
  		ir_codes     = RC_MAP_PROTEUS_2309;
  		mask_keycode = 0x00007F;
  		mask_keyup   = 0x000080;
  		polling      = 50; // ms
  		break;
  	case SAA7134_BOARD_VIDEOMATE_DVBT_300:
  	case SAA7134_BOARD_VIDEOMATE_DVBT_200:
  		ir_codes     = RC_MAP_VIDEOMATE_TV_PVR;
  		mask_keycode = 0x003F00;
  		mask_keyup   = 0x040000;
  		break;
  	case SAA7134_BOARD_FLYDVBS_LR300:
  	case SAA7134_BOARD_FLYDVBT_LR301:
  	case SAA7134_BOARD_FLYDVBTDUO:
  		ir_codes     = RC_MAP_FLYDVB;
  		mask_keycode = 0x0001F00;
  		mask_keydown = 0x0040000;
  		break;
  	case SAA7134_BOARD_ASUSTeK_P7131_DUAL:
  	case SAA7134_BOARD_ASUSTeK_P7131_HYBRID_LNA:
  	case SAA7134_BOARD_ASUSTeK_P7131_ANALOG:
  		ir_codes     = RC_MAP_ASUS_PC39;
  		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
  		mask_keyup   = 0x0040000;
  		mask_keycode = 0xffff;
  		raw_decode   = true;
  		break;
  	case SAA7134_BOARD_ASUSTeK_PS3_100:
  		ir_codes     = RC_MAP_ASUS_PS3_100;
  		mask_keydown = 0x0040000;
  		mask_keyup   = 0x0040000;
  		mask_keycode = 0xffff;
  		raw_decode   = true;
  		break;
  	case SAA7134_BOARD_ENCORE_ENLTV:
  	case SAA7134_BOARD_ENCORE_ENLTV_FM:
  		ir_codes     = RC_MAP_ENCORE_ENLTV;
  		mask_keycode = 0x00007f;
  		mask_keyup   = 0x040000;
  		polling      = 50; // ms
  		break;
  	case SAA7134_BOARD_ENCORE_ENLTV_FM53:
  	case SAA7134_BOARD_ENCORE_ENLTV_FM3:
  		ir_codes     = RC_MAP_ENCORE_ENLTV_FM53;
  		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
  		mask_keyup   = 0x0040000;
  		mask_keycode = 0xffff;
  		raw_decode   = true;
  		break;
  	case SAA7134_BOARD_10MOONSTVMASTER3:
  		ir_codes     = RC_MAP_ENCORE_ENLTV;
  		mask_keycode = 0x5f80000;
  		mask_keyup   = 0x8000000;
  		polling      = 50; //ms
  		break;
  	case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
  		ir_codes     = RC_MAP_GENIUS_TVGO_A11MCE;
  		mask_keycode = 0xff;
  		mask_keydown = 0xf00000;
  		polling = 50; /* ms */
  		break;
  	case SAA7134_BOARD_REAL_ANGEL_220:
  		ir_codes     = RC_MAP_REAL_AUDIO_220_32_KEYS;
  		mask_keycode = 0x3f00;
  		mask_keyup   = 0x4000;
  		polling = 50; /* ms */
  		break;
  	case SAA7134_BOARD_KWORLD_PLUS_TV_ANALOG:
  		ir_codes     = RC_MAP_KWORLD_PLUS_TV_ANALOG;
  		mask_keycode = 0x7f;
  		polling = 40; /* ms */
  		break;
  	case SAA7134_BOARD_VIDEOMATE_S350:
  		ir_codes     = RC_MAP_VIDEOMATE_S350;
  		mask_keycode = 0x003f00;
  		mask_keydown = 0x040000;
  		break;
  	case SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S:
  		ir_codes     = RC_MAP_WINFAST;
  		mask_keycode = 0x5f00;
  		mask_keyup   = 0x020000;
  		polling      = 50; /* ms */
  		break;
  	case SAA7134_BOARD_VIDEOMATE_M1F:
  		ir_codes     = RC_MAP_VIDEOMATE_K100;
  		mask_keycode = 0x0ff00;
  		mask_keyup   = 0x040000;
  		break;
  	case SAA7134_BOARD_HAUPPAUGE_HVR1150:
  	case SAA7134_BOARD_HAUPPAUGE_HVR1120:
  		ir_codes     = RC_MAP_HAUPPAUGE;
  		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
  		mask_keyup   = 0x0040000;
  		mask_keycode = 0xffff;
  		raw_decode   = true;
  		break;
  	case SAA7134_BOARD_LEADTEK_WINFAST_TV2100_FM:
  		ir_codes     = RC_MAP_LEADTEK_Y04G0051;
  		mask_keydown = 0x0040000;	/* Enable GPIO18 line on both edges */
  		mask_keyup   = 0x0040000;
  		mask_keycode = 0xffff;
  		raw_decode   = true;
  		break;
  	}
  	if (NULL == ir_codes) {
  		pr_err("Oops: IR config error [card=%d]\n", dev->board);
  		return -ENODEV;
  	}
  
  	ir = kzalloc(sizeof(*ir), GFP_KERNEL);
  	rc = rc_allocate_device(RC_DRIVER_SCANCODE);
  	if (!ir || !rc) {
  		err = -ENOMEM;
  		goto err_out_free;
  	}
  
  	ir->dev = rc;
  	dev->remote = ir;
  
  	/* init hardware-specific stuff */
  	ir->mask_keycode = mask_keycode;
  	ir->mask_keydown = mask_keydown;
  	ir->mask_keyup   = mask_keyup;
  	ir->polling      = polling;
  	ir->raw_decode	 = raw_decode;
  
  	/* init input device */
  	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
  		 pci_name(dev->pci));
  
  	rc->priv = dev;
  	rc->open = saa7134_ir_open;
  	rc->close = saa7134_ir_close;
  	if (raw_decode) {
  		rc->driver_type = RC_DRIVER_IR_RAW;
  		rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
  	}
  
  	rc->device_name = saa7134_boards[dev->board].name;
  	rc->input_phys = ir->phys;
  	rc->input_id.bustype = BUS_PCI;
  	rc->input_id.version = 1;
  	if (dev->pci->subsystem_vendor) {
  		rc->input_id.vendor  = dev->pci->subsystem_vendor;
  		rc->input_id.product = dev->pci->subsystem_device;
  	} else {
  		rc->input_id.vendor  = dev->pci->vendor;
  		rc->input_id.product = dev->pci->device;
  	}
  	rc->dev.parent = &dev->pci->dev;
  	rc->map_name = ir_codes;
  	rc->driver_name = MODULE_NAME;
  	rc->min_timeout = 1;
  	rc->timeout = IR_DEFAULT_TIMEOUT;
  	rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT;
  
  	err = rc_register_device(rc);
  	if (err)
  		goto err_out_free;
  
  	return 0;
  
  err_out_free:
  	rc_free_device(rc);
  	dev->remote = NULL;
  	kfree(ir);
  	return err;
  }
  
  void saa7134_input_fini(struct saa7134_dev *dev)
  {
  	if (NULL == dev->remote)
  		return;
  
  	rc_unregister_device(dev->remote->dev);
  	kfree(dev->remote);
  	dev->remote = NULL;
  }
  
  void saa7134_probe_i2c_ir(struct saa7134_dev *dev)
  {
  	struct i2c_board_info info;
  	struct i2c_msg msg_msi = {
  		.addr = 0x50,
  		.flags = I2C_M_RD,
  		.len = 0,
  		.buf = NULL,
  	};
  	int rc;
  
  	if (disable_ir) {
  		input_dbg("IR has been disabled, not probing for i2c remote\n");
  		return;
  	}
  
  	memset(&info, 0, sizeof(struct i2c_board_info));
  	memset(&dev->init_data, 0, sizeof(dev->init_data));
  	strscpy(info.type, "ir_video", I2C_NAME_SIZE);
  
  	switch (dev->board) {
  	case SAA7134_BOARD_PINNACLE_PCTV_110i:
  	case SAA7134_BOARD_PINNACLE_PCTV_310i:
  		dev->init_data.name = "Pinnacle PCTV";
  		if (pinnacle_remote == 0) {
  			dev->init_data.get_key = get_key_pinnacle_color;
  			dev->init_data.ir_codes = RC_MAP_PINNACLE_COLOR;
  			info.addr = 0x47;
  		} else {
  			dev->init_data.get_key = get_key_pinnacle_grey;
  			dev->init_data.ir_codes = RC_MAP_PINNACLE_GREY;
  			info.addr = 0x47;
  		}
  		break;
  	case SAA7134_BOARD_UPMOST_PURPLE_TV:
  		dev->init_data.name = "Purple TV";
  		dev->init_data.get_key = get_key_purpletv;
  		dev->init_data.ir_codes = RC_MAP_PURPLETV;
  		info.addr = 0x7a;
  		break;
  	case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
  		dev->init_data.name = "MSI TV@nywhere Plus";
  		dev->init_data.get_key = get_key_msi_tvanywhere_plus;
  		dev->init_data.ir_codes = RC_MAP_MSI_TVANYWHERE_PLUS;
  		/*
  		 * MSI TV@nyware Plus requires more frequent polling
  		 * otherwise it will miss some keypresses
  		 */
  		dev->init_data.polling_interval = 50;
  		info.addr = 0x30;
  		/* MSI TV@nywhere Plus controller doesn't seem to
  		   respond to probes unless we read something from
  		   an existing device. Weird...
  		   REVISIT: might no longer be needed */
  		rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
  		input_dbg("probe 0x%02x @ %s: %s\n",
  			msg_msi.addr, dev->i2c_adap.name,
  			(1 == rc) ? "yes" : "no");
  		break;
  	case SAA7134_BOARD_SNAZIO_TVPVR_PRO:
  		dev->init_data.name = "SnaZio* TVPVR PRO";
  		dev->init_data.get_key = get_key_msi_tvanywhere_plus;
  		dev->init_data.ir_codes = RC_MAP_MSI_TVANYWHERE_PLUS;
  		/*
  		 * MSI TV@nyware Plus requires more frequent polling
  		 * otherwise it will miss some keypresses
  		 */
  		dev->init_data.polling_interval = 50;
  		info.addr = 0x30;
  		/*
  		 * MSI TV@nywhere Plus controller doesn't seem to
  		 *  respond to probes unless we read something from
  		 *  an existing device. Weird...
  		 * REVISIT: might no longer be needed
  		 */
  		rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
  		input_dbg("probe 0x%02x @ %s: %s\n",
  			msg_msi.addr, dev->i2c_adap.name,
  			(rc == 1) ? "yes" : "no");
  		break;
  	case SAA7134_BOARD_KWORLD_PC150U:
  		/* copied and modified from MSI TV@nywhere Plus */
  		dev->init_data.name = "Kworld PC150-U";
  		dev->init_data.get_key = get_key_kworld_pc150u;
  		dev->init_data.ir_codes = RC_MAP_KWORLD_PC150U;
  		info.addr = 0x30;
  		/* MSI TV@nywhere Plus controller doesn't seem to
  		   respond to probes unless we read something from
  		   an existing device. Weird...
  		   REVISIT: might no longer be needed */
  		rc = i2c_transfer(&dev->i2c_adap, &msg_msi, 1);
  		input_dbg("probe 0x%02x @ %s: %s\n",
  			msg_msi.addr, dev->i2c_adap.name,
  			(1 == rc) ? "yes" : "no");
  		break;
  	case SAA7134_BOARD_HAUPPAUGE_HVR1110:
  		dev->init_data.name = saa7134_boards[dev->board].name;
  		dev->init_data.ir_codes = RC_MAP_HAUPPAUGE;
  		dev->init_data.type = RC_PROTO_BIT_RC5 |
  				RC_PROTO_BIT_RC6_MCE | RC_PROTO_BIT_RC6_6A_32;
  		dev->init_data.internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;
  		info.addr = 0x71;
  		break;
  	case SAA7134_BOARD_BEHOLD_607FM_MK3:
  	case SAA7134_BOARD_BEHOLD_607FM_MK5:
  	case SAA7134_BOARD_BEHOLD_609FM_MK3:
  	case SAA7134_BOARD_BEHOLD_609FM_MK5:
  	case SAA7134_BOARD_BEHOLD_607RDS_MK3:
  	case SAA7134_BOARD_BEHOLD_607RDS_MK5:
  	case SAA7134_BOARD_BEHOLD_609RDS_MK3:
  	case SAA7134_BOARD_BEHOLD_609RDS_MK5:
  	case SAA7134_BOARD_BEHOLD_M6:
  	case SAA7134_BOARD_BEHOLD_M63:
  	case SAA7134_BOARD_BEHOLD_M6_EXTRA:
  	case SAA7134_BOARD_BEHOLD_H6:
  	case SAA7134_BOARD_BEHOLD_X7:
  	case SAA7134_BOARD_BEHOLD_H7:
  	case SAA7134_BOARD_BEHOLD_A7:
  		dev->init_data.name = "BeholdTV";
  		dev->init_data.get_key = get_key_beholdm6xx;
  		dev->init_data.ir_codes = RC_MAP_BEHOLD;
  		dev->init_data.type = RC_PROTO_BIT_NECX;
  		info.addr = 0x2d;
  		break;
  	case SAA7134_BOARD_AVERMEDIA_CARDBUS_501:
  	case SAA7134_BOARD_AVERMEDIA_CARDBUS_506:
  		info.addr = 0x40;
  		break;
  	case SAA7134_BOARD_AVERMEDIA_A706:
  		info.addr = 0x41;
  		break;
  	case SAA7134_BOARD_FLYDVB_TRIO:
  		dev->init_data.name = "FlyDVB Trio";
  		dev->init_data.get_key = get_key_flydvb_trio;
  		dev->init_data.ir_codes = RC_MAP_FLYDVB;
  		info.addr = 0x0b;
  		break;
  	default:
  		input_dbg("No I2C IR support for board %x\n", dev->board);
  		return;
  	}
  
  	if (dev->init_data.name)
  		info.platform_data = &dev->init_data;
  	i2c_new_device(&dev->i2c_adap, &info);
  }
  
  static int saa7134_raw_decode_irq(struct saa7134_dev *dev)
  {
  	struct saa7134_card_ir *ir = dev->remote;
  	int space;
  
  	/* Generate initial event */
  	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
  	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
  	space = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
  	ir_raw_event_store_edge(dev->remote->dev, !space);
  
  	return 1;
  }
  