1 files changed, 880 insertions, 0 deletions

diff --git a/drivers/media/video/saa7134/saa7134-input.c b/drivers/media/video/saa7134/saa7134-input.c
new file mode 100644
index 0000000..c53fd5f
--- /dev/null
+++ b/drivers/media/video/saa7134/saa7134-input.c
@@ -0,0 +1,880 @@
+/*
+ *
+ * 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.
+ *
+ * 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 "saa7134-reg.h"
+#include "saa7134.h"
+
+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)");
+
+static int ir_rc5_remote_gap = 885;
+module_param(ir_rc5_remote_gap, int, 0644);
+static int ir_rc5_key_timeout = 115;
+module_param(ir_rc5_key_timeout, int, 0644);
+
+static int repeat_delay = 500;
+module_param(repeat_delay, int, 0644);
+MODULE_PARM_DESC(repeat_delay, "delay before key repeat started");
+static int repeat_period = 33;
+module_param(repeat_period, int, 0644);
+MODULE_PARM_DESC(repeat_period, "repeat period between "
+    "keypresses when key is down");
+
+static unsigned int disable_other_ir;
+module_param(disable_other_ir, int, 0644);
+MODULE_PARM_DESC(disable_other_ir, "disable full codes of "
+    "alternative remotes from other manufacturers");
+
+#define dprintk(fmt, arg...)	if (ir_debug) \
+	printk(KERN_DEBUG "%s/ir: " fmt, dev->name , ## arg)
+#define i2cdprintk(fmt, arg...)    if (ir_debug) \
+	printk(KERN_DEBUG "%s/ir: " fmt, ir->c.name , ## arg)
+
+/* Helper functions for RC5 and NEC decoding at GPIO16 or GPIO18 */
+static int saa7134_rc5_irq(struct saa7134_dev *dev);
+static int saa7134_nec_irq(struct saa7134_dev *dev);
+static void nec_task(unsigned long data);
+static void saa7134_nec_timer(unsigned long data);
+
+/* -------------------- GPIO generic keycode builder -------------------- */
+
+static int build_key(struct saa7134_dev *dev)
+{
+	struct 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);
+	dprintk("build_key gpio=0x%x mask=0x%x data=%d\n",
+		gpio, ir->mask_keycode, data);
+
+	if (ir->polling) {
+		if ((ir->mask_keydown  &&  (0 != (gpio & ir->mask_keydown))) ||
+		    (ir->mask_keyup    &&  (0 == (gpio & ir->mask_keyup)))) {
+			ir_input_keydown(ir->dev, &ir->ir, data, data);
+		} else {
+			ir_input_nokey(ir->dev, &ir->ir);
+		}
+	}
+	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)))) {
+			ir_input_keydown(ir->dev, &ir->ir, data, data);
+			ir_input_nokey(ir->dev, &ir->ir);
+		}
+	}
+
+	return 0;
+}
+
+/* --------------------- Chip specific I2C key builders ----------------- */
+
+static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key,
+				       u32 *ir_raw)
+{
+	unsigned char b;
+	int gpio;
+
+	/* <dev> is needed to access GPIO. Used by the saa_readl macro. */
+	struct saa7134_dev *dev = ir->c.adapter->algo_data;
+	if (dev == NULL) {
+		dprintk("get_key_msi_tvanywhere_plus: "
+			"gir->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. */
+
+	if (1 != i2c_master_recv(&ir->c, &b, 1)) {
+		i2cdprintk("read error\n");
+		return -EIO;
+	}
+
+	/* No button press */
+
+	if (b == 0xff)
+		return 0;
+
+	/* Button pressed */
+
+	dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b);
+	*ir_key = b;
+	*ir_raw = b;
+	return 1;
+}
+
+static int get_key_purpletv(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)) {
+		i2cdprintk("read error\n");
+		return -EIO;
+	}
+
+	/* no button press */
+	if (b==0)
+		return 0;
+
+	/* repeating */
+	if (b & 0x80)
+		return 1;
+
+	*ir_key = b;
+	*ir_raw = b;
+	return 1;
+}
+
+static int get_key_hvr1110(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
+{
+	unsigned char buf[5], cod4, code3, code4;
+
+	/* poll IR chip */
+	if (5 != i2c_master_recv(&ir->c,buf,5))
+		return -EIO;
+
+	cod4	= buf[4];
+	code4	= (cod4 >> 2);
+	code3	= buf[3];
+	if (code3 == 0)
+		/* no key pressed */
+		return 0;
+
+	/* return key */
+	*ir_key = code4;
+	*ir_raw = code4;
+	return 1;
+}
+
+
+static int get_key_beholdm6xx(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
+{
+	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;
+
+	if (12 != i2c_master_recv(&ir->c, data, 12)) {
+		i2cdprintk("read error\n");
+		return -EIO;
+	}
+	/* IR of this card normally decode signals NEC-standard from
+	 * - Sven IHOO MT 5.1R remote. xxyye718
+	 * - Sven DVD HD-10xx remote. xxyyf708
+	 * - BBK ...
+	 * - mayby others
+	 * So, skip not our, if disable full codes mode.
+	 */
+	if (data[10] != 0x6b && data[11] != 0x86 && disable_other_ir)
+		return 0;
+
+	*ir_key = data[9];
+	*ir_raw = data[9];
+
+	return 1;
+}
+
+/* Common (grey or coloured) pinnacle PCTV remote handling
+ *
+ */
+static int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw,
+			    int parity_offset, int marker, int code_modulo)
+{
+	unsigned char b[4];
+	unsigned int start = 0,parity = 0,code = 0;
+
+	/* poll IR chip */
+	if (4 != i2c_master_recv(&ir->c, b, 4)) {
+		i2cdprintk("read error\n");
+		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;
+
+	*ir_raw = code;
+	*ir_key = code;
+
+	i2cdprintk("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, u32 *ir_key, u32 *ir_raw)
+{
+
+	return get_key_pinnacle(ir, ir_key, ir_raw, 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, u32 *ir_key, u32 *ir_raw)
+{
+	/* 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, ir_key, ir_raw, 2, 0x80, 0x88);
+}
+
+void saa7134_input_irq(struct saa7134_dev *dev)
+{
+	struct card_ir *ir = dev->remote;
+
+	if (ir->nec_gpio) {
+		saa7134_nec_irq(dev);
+	} else if (!ir->polling && !ir->rc5_gpio) {
+		build_key(dev);
+	} else if (ir->rc5_gpio) {
+		saa7134_rc5_irq(dev);
+	}
+}
+
+static void saa7134_input_timer(unsigned long data)
+{
+	struct saa7134_dev *dev = (struct saa7134_dev *)data;
+	struct card_ir *ir = dev->remote;
+
+	build_key(dev);
+	mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling));
+}
+
+void saa7134_ir_start(struct saa7134_dev *dev, struct card_ir *ir)
+{
+	if (ir->polling) {
+		setup_timer(&ir->timer, saa7134_input_timer,
+			    (unsigned long)dev);
+		ir->timer.expires  = jiffies + HZ;
+		add_timer(&ir->timer);
+	} else if (ir->rc5_gpio) {
+		/* set timer_end for code completion */
+		init_timer(&ir->timer_end);
+		ir->timer_end.function = ir_rc5_timer_end;
+		ir->timer_end.data = (unsigned long)ir;
+		init_timer(&ir->timer_keyup);
+		ir->timer_keyup.function = ir_rc5_timer_keyup;
+		ir->timer_keyup.data = (unsigned long)ir;
+		ir->shift_by = 2;
+		ir->start = 0x2;
+		ir->addr = 0x17;
+		ir->rc5_key_timeout = ir_rc5_key_timeout;
+		ir->rc5_remote_gap = ir_rc5_remote_gap;
+	} else if (ir->nec_gpio) {
+		setup_timer(&ir->timer_keyup, saa7134_nec_timer,
+			    (unsigned long)dev);
+		tasklet_init(&ir->tlet, nec_task, (unsigned long)dev);
+	}
+}
+
+void saa7134_ir_stop(struct saa7134_dev *dev)
+{
+	if (dev->remote->polling)
+		del_timer_sync(&dev->remote->timer);
+}
+
+int saa7134_input_init1(struct saa7134_dev *dev)
+{
+	struct card_ir *ir;
+	struct input_dev *input_dev;
+	IR_KEYTAB_TYPE *ir_codes = NULL;
+	u32 mask_keycode = 0;
+	u32 mask_keydown = 0;
+	u32 mask_keyup   = 0;
+	int polling      = 0;
+	int rc5_gpio	 = 0;
+	int nec_gpio	 = 0;
+	int ir_type      = IR_TYPE_OTHER;
+	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:
+		ir_codes     = ir_codes_flyvideo;
+		mask_keycode = 0xEC00000;
+		mask_keydown = 0x0040000;
+		break;
+	case SAA7134_BOARD_CINERGY400:
+	case SAA7134_BOARD_CINERGY600:
+	case SAA7134_BOARD_CINERGY600_MK3:
+		ir_codes     = ir_codes_cinergy;
+		mask_keycode = 0x00003f;
+		mask_keyup   = 0x040000;
+		break;
+	case SAA7134_BOARD_ECS_TVP3XP:
+	case SAA7134_BOARD_ECS_TVP3XP_4CB5:
+		ir_codes     = ir_codes_eztv;
+		mask_keycode = 0x00017c;
+		mask_keyup   = 0x000002;
+		polling      = 50; // ms
+		break;
+	case SAA7134_BOARD_KWORLD_XPERT:
+	case SAA7134_BOARD_AVACSSMARTTV:
+		ir_codes     = ir_codes_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_STUDIO_305:
+	case SAA7134_BOARD_AVERMEDIA_STUDIO_307:
+	case SAA7134_BOARD_AVERMEDIA_STUDIO_507:
+	case SAA7134_BOARD_AVERMEDIA_GO_007_FM:
+	case SAA7134_BOARD_AVERMEDIA_M102:
+		ir_codes     = ir_codes_avermedia;
+		mask_keycode = 0x0007C8;
+		mask_keydown = 0x000010;
+		polling      = 50; // ms
+		/* Set GPIO pin2 to high to enable the IR controller */
+		saa_setb(SAA7134_GPIO_GPMODE0, 0x4);
+		saa_setb(SAA7134_GPIO_GPSTATUS0, 0x4);
+		break;
+	case SAA7134_BOARD_AVERMEDIA_M135A:
+		ir_codes     = ir_codes_avermedia_m135a;
+		mask_keydown = 0x0040000;
+		mask_keycode = 0x00013f;
+		nec_gpio     = 1;
+		break;
+	case SAA7134_BOARD_AVERMEDIA_777:
+	case SAA7134_BOARD_AVERMEDIA_A16AR:
+		ir_codes     = ir_codes_avermedia;
+		mask_keycode = 0x02F200;
+		mask_keydown = 0x000400;
+		polling      = 50; // ms
+		/* 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:
+		ir_codes     = ir_codes_avermedia_a16d;
+		mask_keycode = 0x02F200;
+		mask_keydown = 0x000400;
+		polling      = 50; /* ms */
+		/* 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_KWORLD_TERMINATOR:
+		ir_codes     = ir_codes_pixelview;
+		mask_keycode = 0x00001f;
+		mask_keyup   = 0x000060;
+		polling      = 50; // ms
+		break;
+	case SAA7134_BOARD_MANLI_MTV001:
+	case SAA7134_BOARD_MANLI_MTV002:
+		ir_codes     = ir_codes_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_507_9FM:
+		ir_codes     = ir_codes_manli;
+		mask_keycode = 0x003f00;
+		mask_keyup   = 0x004000;
+		polling      = 50; /* ms */
+		break;
+	case SAA7134_BOARD_BEHOLD_COLUMBUS_TVFM:
+		ir_codes     = ir_codes_behold_columbus;
+		mask_keycode = 0x003f00;
+		mask_keyup   = 0x004000;
+		polling      = 50; // ms
+		break;
+	case SAA7134_BOARD_SEDNA_PC_TV_CARDBUS:
+		ir_codes     = ir_codes_pctv_sedna;
+		mask_keycode = 0x001f00;
+		mask_keyup   = 0x004000;
+		polling      = 50; // ms
+		break;
+	case SAA7134_BOARD_GOTVIEW_7135:
+		ir_codes     = ir_codes_gotview7135;
+		mask_keycode = 0x0003CC;
+		mask_keydown = 0x000010;
+		polling	     = 5; /* ms */
+		saa_setb(SAA7134_GPIO_GPMODE1, 0x80);
+		break;
+	case SAA7134_BOARD_VIDEOMATE_TV_PVR:
+	case SAA7134_BOARD_VIDEOMATE_GOLD_PLUS:
+	case SAA7134_BOARD_VIDEOMATE_TV_GOLD_PLUSII:
+		ir_codes     = ir_codes_videomate_tv_pvr;
+		mask_keycode = 0x00003F;
+		mask_keyup   = 0x400000;
+		polling      = 50; // ms
+		break;
+	case SAA7134_BOARD_PROTEUS_2309:
+		ir_codes     = ir_codes_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     = ir_codes_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     = ir_codes_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     = ir_codes_asus_pc39;
+		mask_keydown = 0x0040000;
+		rc5_gpio = 1;
+		break;
+	case SAA7134_BOARD_ENCORE_ENLTV:
+	case SAA7134_BOARD_ENCORE_ENLTV_FM:
+		ir_codes     = ir_codes_encore_enltv;
+		mask_keycode = 0x00007f;
+		mask_keyup   = 0x040000;
+		polling      = 50; // ms
+		break;
+	case SAA7134_BOARD_ENCORE_ENLTV_FM53:
+		ir_codes     = ir_codes_encore_enltv_fm53;
+		mask_keydown = 0x0040000;
+		mask_keycode = 0x00007f;
+		nec_gpio = 1;
+		break;
+	case SAA7134_BOARD_10MOONSTVMASTER3:
+		ir_codes     = ir_codes_encore_enltv;
+		mask_keycode = 0x5f80000;
+		mask_keyup   = 0x8000000;
+		polling      = 50; //ms
+		break;
+	case SAA7134_BOARD_GENIUS_TVGO_A11MCE:
+		ir_codes     = ir_codes_genius_tvgo_a11mce;
+		mask_keycode = 0xff;
+		mask_keydown = 0xf00000;
+		polling = 50; /* ms */
+		break;
+	case SAA7134_BOARD_REAL_ANGEL_220:
+		ir_codes     = ir_codes_real_audio_220_32_keys;
+		mask_keycode = 0x3f00;
+		mask_keyup   = 0x4000;
+		polling = 50; /* ms */
+		break;
+	}
+	if (NULL == ir_codes) {
+		printk("%s: Oops: IR config error [card=%d]\n",
+		       dev->name, dev->board);
+		return -ENODEV;
+	}
+
+	ir = kzalloc(sizeof(*ir), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!ir || !input_dev) {
+		err = -ENOMEM;
+		goto err_out_free;
+	}
+
+	ir->dev = input_dev;
+
+	/* init hardware-specific stuff */
+	ir->mask_keycode = mask_keycode;
+	ir->mask_keydown = mask_keydown;
+	ir->mask_keyup   = mask_keyup;
+	ir->polling      = polling;
+	ir->rc5_gpio	 = rc5_gpio;
+	ir->nec_gpio	 = nec_gpio;
+
+	/* init input device */
+	snprintf(ir->name, sizeof(ir->name), "saa7134 IR (%s)",
+		 saa7134_boards[dev->board].name);
+	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
+		 pci_name(dev->pci));
+
+	ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
+	input_dev->name = ir->name;
+	input_dev->phys = ir->phys;
+	input_dev->id.bustype = BUS_PCI;
+	input_dev->id.version = 1;
+	if (dev->pci->subsystem_vendor) {
+		input_dev->id.vendor  = dev->pci->subsystem_vendor;
+		input_dev->id.product = dev->pci->subsystem_device;
+	} else {
+		input_dev->id.vendor  = dev->pci->vendor;
+		input_dev->id.product = dev->pci->device;
+	}
+	input_dev->dev.parent = &dev->pci->dev;
+
+	dev->remote = ir;
+	saa7134_ir_start(dev, ir);
+
+	err = input_register_device(ir->dev);
+	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:
+	saa7134_ir_stop(dev);
+	dev->remote = NULL;
+ err_out_free:
+	input_free_device(input_dev);
+	kfree(ir);
+	return err;
+}
+
+void saa7134_input_fini(struct saa7134_dev *dev)
+{
+	if (NULL == dev->remote)
+		return;
+
+	saa7134_ir_stop(dev);
+	input_unregister_device(dev->remote->dev);
+	kfree(dev->remote);
+	dev->remote = NULL;
+}
+
+void saa7134_set_i2c_ir(struct saa7134_dev *dev, struct IR_i2c *ir)
+{
+	if (disable_ir) {
+		dprintk("Found supported i2c remote, but IR has been disabled\n");
+		ir->get_key=NULL;
+		return;
+	}
+
+	switch (dev->board) {
+	case SAA7134_BOARD_PINNACLE_PCTV_110i:
+	case SAA7134_BOARD_PINNACLE_PCTV_310i:
+		snprintf(ir->c.name, sizeof(ir->c.name), "Pinnacle PCTV");
+		if (pinnacle_remote == 0) {
+			ir->get_key   = get_key_pinnacle_color;
+			ir->ir_codes = ir_codes_pinnacle_color;
+		} else {
+			ir->get_key   = get_key_pinnacle_grey;
+			ir->ir_codes = ir_codes_pinnacle_grey;
+		}
+		break;
+	case SAA7134_BOARD_UPMOST_PURPLE_TV:
+		snprintf(ir->c.name, sizeof(ir->c.name), "Purple TV");
+		ir->get_key   = get_key_purpletv;
+		ir->ir_codes  = ir_codes_purpletv;
+		break;
+	case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS:
+		snprintf(ir->c.name, sizeof(ir->c.name), "MSI TV@nywhere Plus");
+		ir->get_key  = get_key_msi_tvanywhere_plus;
+		ir->ir_codes = ir_codes_msi_tvanywhere_plus;
+		break;
+	case SAA7134_BOARD_HAUPPAUGE_HVR1110:
+		snprintf(ir->c.name, sizeof(ir->c.name), "HVR 1110");
+		ir->get_key   = get_key_hvr1110;
+		ir->ir_codes  = ir_codes_hauppauge_new;
+		break;
+	case SAA7134_BOARD_BEHOLD_607_9FM:
+	case SAA7134_BOARD_BEHOLD_M6:
+	case SAA7134_BOARD_BEHOLD_M63:
+	case SAA7134_BOARD_BEHOLD_M6_EXTRA:
+	case SAA7134_BOARD_BEHOLD_H6:
+		snprintf(ir->c.name, sizeof(ir->c.name), "BeholdTV");
+		ir->get_key   = get_key_beholdm6xx;
+		ir->ir_codes  = ir_codes_behold;
+		break;
+	default:
+		dprintk("Shouldn't get here: Unknown board %x for I2C IR?\n",dev->board);
+		break;
+	}
+
+}
+
+static int saa7134_rc5_irq(struct saa7134_dev *dev)
+{
+	struct card_ir *ir = dev->remote;
+	struct timeval tv;
+	u32 gap;
+	unsigned long current_jiffies, timeout;
+
+	/* 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;
+
+		timeout = current_jiffies + (500 + 30 * HZ) / 1000;
+		mod_timer(&ir->timer_end, timeout);
+	}
+
+	return 1;
+}
+
+
+/* On NEC protocol, One has 2.25 ms, and zero has 1.125 ms
+   The first pulse (start) has 9 + 4.5 ms
+ */
+
+static void saa7134_nec_timer(unsigned long data)
+{
+	struct saa7134_dev *dev = (struct saa7134_dev *) data;
+	struct card_ir *ir = dev->remote;
+
+	dprintk("Cancel key repeat\n");
+
+	ir_input_nokey(ir->dev, &ir->ir);
+}
+
+static void nec_task(unsigned long data)
+{
+	struct saa7134_dev *dev = (struct saa7134_dev *) data;
+	struct card_ir *ir;
+	struct timeval tv;
+	int count, pulse, oldpulse, gap;
+	u32 ircode = 0, not_code = 0;
+	int ngap = 0;
+
+	if (!data) {
+		printk(KERN_ERR "saa713x/ir: Can't recover dev struct\n");
+		/* GPIO will be kept disabled */
+		return;
+	}
+
+	ir = dev->remote;
+
+	/* rising SAA7134_GPIO_GPRESCAN reads the status */
+	saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
+	saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
+
+	oldpulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & ir->mask_keydown;
+	pulse = oldpulse;
+
+	do_gettimeofday(&tv);
+	ir->base_time = tv;
+
+	/* Decode NEC pulsecode. This code can take up to 76.5 ms to run.
+	   Unfortunately, using IRQ to decode pulse didn't work, since it uses
+	   a pulse train of 38KHz. This means one pulse on each 52 us
+	 */
+	do {
+		/* Wait until the end of pulse/space or 5 ms */
+		for (count = 0; count < 500; count++)  {
+			udelay(10);
+			/* rising SAA7134_GPIO_GPRESCAN reads the status */
+			saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
+			saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
+			pulse = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)
+				& ir->mask_keydown;
+			if (pulse != oldpulse)
+				break;
+		}
+
+		do_gettimeofday(&tv);
+		gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) +
+				tv.tv_usec - ir->base_time.tv_usec;
+
+		if (!pulse) {
+			/* Bit 0 has 560 us, while bit 1 has 1120 us.
+			   Do something only if bit == 1
+			 */
+			if (ngap && (gap > 560 + 280)) {
+				unsigned int shift = ngap - 1;
+
+				/* Address first, then command */
+				if (shift < 8) {
+					shift += 8;
+					ircode |= 1 << shift;
+				} else if (shift < 16) {
+					not_code |= 1 << shift;
+				} else if (shift < 24) {
+					shift -= 16;
+					ircode |= 1 << shift;
+				} else {
+					shift -= 24;
+					not_code |= 1 << shift;
+				}
+			}
+			ngap++;
+		}
+
+
+		ir->base_time = tv;
+
+		/* TIMEOUT - Long pulse */
+		if (gap >= 5000)
+			break;
+		oldpulse = pulse;
+	} while (ngap < 32);
+
+	if (ngap == 32) {
+		/* FIXME: should check if not_code == ~ircode */
+		ir->code = ir_extract_bits(ircode, ir->mask_keycode);
+
+		dprintk("scancode = 0x%02x (code = 0x%02x, notcode= 0x%02x)\n",
+			 ir->code, ircode, not_code);
+
+		ir_input_keydown(ir->dev, &ir->ir, ir->code, ir->code);
+	} else
+		dprintk("Repeat last key\n");
+
+	/* Keep repeating the last key */
+	mod_timer(&ir->timer_keyup, jiffies + msecs_to_jiffies(150));
+
+	saa_setl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
+}
+
+static int saa7134_nec_irq(struct saa7134_dev *dev)
+{
+	struct card_ir *ir = dev->remote;
+
+	saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
+	tasklet_schedule(&ir->tlet);
+
+	return 1;
+}