[net-next-2.6.git] / drivers / media / video / cx88 / cx88-input.c

/*
 *
 * 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, 2005 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/hrtimer.h>
#include <linux/input.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/module.h>

#include "cx88.h"
#include <media/ir-common.h>

#define MODULE_NAME "cx88xx"

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

struct cx88_IR {
	struct cx88_core *core;
	struct input_dev *input;
	struct ir_input_state ir;
	struct ir_dev_props props;

	int users;

	char name[32];
	char phys[32];

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

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

static int ir_debug;
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, auxgpio;

	/* read gpio value */
	gpio = cx_read(ir->gpio_addr);
	switch (core->boardnr) {
	case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
		/* This board apparently uses a combination of 2 GPIO
		   to represent the keys. Additionally, the second GPIO
		   can be used for parity.

		   Example:

		   for key "5"
			gpio = 0x758, auxgpio = 0xe5 or 0xf5
		   for key "Power"
			gpio = 0x758, auxgpio = 0xed or 0xfd
		 */

		auxgpio = cx_read(MO_GP1_IO);
		/* Take out the parity part */
		gpio=(gpio & 0x7fd) + (auxgpio & 0xef);
		break;
	case CX88_BOARD_WINFAST_DTV1000:
	case CX88_BOARD_WINFAST_DTV1800H:
	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
		gpio = (gpio & 0x6ff) | ((cx_read(MO_GP1_IO) << 8) & 0x900);
		auxgpio = gpio;
		break;
	default:
		auxgpio = gpio;
	}
	if (ir->polling) {
		if (ir->last_gpio == auxgpio)
			return;
		ir->last_gpio = auxgpio;
	}

	/* 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->core->boardnr == CX88_BOARD_NORWOOD_MICRO) {
		u32 gpio_key = cx_read(MO_GP0_IO);

		data = (data << 4) | ((gpio_key & 0xf0) >> 4);

		ir_input_keydown(ir->input, &ir->ir, data);
		ir_input_nokey(ir->input, &ir->ir);

	} else if (ir->mask_keydown) {
		/* bit set on keydown */
		if (gpio & ir->mask_keydown) {
			ir_input_keydown(ir->input, &ir->ir, 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);
		} else {
			ir_input_nokey(ir->input, &ir->ir);
		}

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

static enum hrtimer_restart cx88_ir_work(struct hrtimer *timer)
{
	unsigned long missed;
	struct cx88_IR *ir = container_of(timer, struct cx88_IR, timer);

	cx88_ir_handle_key(ir);
	missed = hrtimer_forward_now(&ir->timer,
				     ktime_set(0, ir->polling * 1000000));
	if (missed > 1)
		ir_dprintk("Missed ticks %ld\n", missed - 1);

	return HRTIMER_RESTART;
}

static int __cx88_ir_start(void *priv)
{
	struct cx88_core *core = priv;
	struct cx88_IR *ir;

	if (!core || !core->ir)
		return -EINVAL;

	ir = core->ir;

	if (ir->polling) {
		hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
		ir->timer.function = cx88_ir_work;
		hrtimer_start(&ir->timer,
			      ktime_set(0, ir->polling * 1000000),
			      HRTIMER_MODE_REL);
	}
	if (ir->sampling) {
		core->pci_irqmask |= PCI_INT_IR_SMPINT;
		cx_write(MO_DDS_IO, 0xa80a80);	/* 4 kHz sample rate */
		cx_write(MO_DDSCFG_IO, 0x5);	/* enable */
	}
	return 0;
}

static void __cx88_ir_stop(void *priv)
{
	struct cx88_core *core = priv;
	struct cx88_IR *ir;

	if (!core || !core->ir)
		return;

	ir = core->ir;
	if (ir->sampling) {
		cx_write(MO_DDSCFG_IO, 0x0);
		core->pci_irqmask &= ~PCI_INT_IR_SMPINT;
	}

	if (ir->polling)
		hrtimer_cancel(&ir->timer);
}

int cx88_ir_start(struct cx88_core *core)
{
	if (core->ir->users)
		return __cx88_ir_start(core);

	return 0;
}

void cx88_ir_stop(struct cx88_core *core)
{
	if (core->ir->users)
		__cx88_ir_stop(core);
}

static int cx88_ir_open(void *priv)
{
	struct cx88_core *core = priv;

	core->ir->users++;
	return __cx88_ir_start(core);
}

static void cx88_ir_close(void *priv)
{
	struct cx88_core *core = priv;

	core->ir->users--;
	if (!core->ir->users)
		__cx88_ir_stop(core);
}

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

int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci)
{
	struct cx88_IR *ir;
	struct input_dev *input_dev;
	struct ir_scancode_table *ir_codes = NULL;
	u64 ir_type = IR_TYPE_OTHER;
	int err = -ENOMEM;

	ir = kzalloc(sizeof(*ir), GFP_KERNEL);
	input_dev = input_allocate_device();
	if (!ir || !input_dev)
		goto err_out_free;

	ir->input = input_dev;

	/* detect & configure */
	switch (core->boardnr) {
	case CX88_BOARD_DNTV_LIVE_DVB_T:
	case CX88_BOARD_KWORLD_DVB_T:
	case CX88_BOARD_KWORLD_DVB_T_CX22702:
		ir_codes = &ir_codes_dntv_live_dvb_t_table;
		ir->gpio_addr = MO_GP1_IO;
		ir->mask_keycode = 0x1f;
		ir->mask_keyup = 0x60;
		ir->polling = 50; /* ms */
		break;
	case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
		ir_codes = &ir_codes_cinergy_1400_table;
		ir_type = IR_TYPE_PD;
		ir->sampling = 0xeb04; /* address */
		break;
	case CX88_BOARD_HAUPPAUGE:
	case CX88_BOARD_HAUPPAUGE_DVB_T1:
	case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
	case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
	case CX88_BOARD_HAUPPAUGE_HVR1100:
	case CX88_BOARD_HAUPPAUGE_HVR3000:
	case CX88_BOARD_HAUPPAUGE_HVR4000:
	case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
	case CX88_BOARD_PCHDTV_HD3000:
	case CX88_BOARD_PCHDTV_HD5500:
	case CX88_BOARD_HAUPPAUGE_IRONLY:
		ir_codes = &ir_codes_hauppauge_new_table;
		ir_type = IR_TYPE_RC5;
		ir->sampling = 1;
		break;
	case CX88_BOARD_WINFAST_DTV2000H:
	case CX88_BOARD_WINFAST_DTV2000H_J:
	case CX88_BOARD_WINFAST_DTV1800H:
		ir_codes = &ir_codes_winfast_table;
		ir->gpio_addr = MO_GP0_IO;
		ir->mask_keycode = 0x8f8;
		ir->mask_keyup = 0x100;
		ir->polling = 50; /* ms */
		break;
	case CX88_BOARD_WINFAST2000XP_EXPERT:
	case CX88_BOARD_WINFAST_DTV1000:
	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
		ir_codes = &ir_codes_winfast_table;
		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_table;
		ir->gpio_addr = MO_GP0_IO;
		ir->mask_keycode = 0xfd;
		ir->mask_keydown = 0x02;
		ir->polling = 5; /* ms */
		break;
	case CX88_BOARD_PROLINK_PLAYTVPVR:
	case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
		ir_codes = &ir_codes_pixelview_table;
		ir->gpio_addr = MO_GP1_IO;
		ir->mask_keycode = 0x1f;
		ir->mask_keyup = 0x80;
		ir->polling = 1; /* ms */
		break;
	case CX88_BOARD_PROLINK_PV_8000GT:
	case CX88_BOARD_PROLINK_PV_GLOBAL_XTREME:
		ir_codes = &ir_codes_pixelview_new_table;
		ir->gpio_addr = MO_GP1_IO;
		ir->mask_keycode = 0x3f;
		ir->mask_keyup = 0x80;
		ir->polling = 1; /* ms */
		break;
	case CX88_BOARD_KWORLD_LTV883:
		ir_codes = &ir_codes_pixelview_table;
		ir->gpio_addr = MO_GP1_IO;
		ir->mask_keycode = 0x1f;
		ir->mask_keyup = 0x60;
		ir->polling = 1; /* ms */
		break;
	case CX88_BOARD_ADSTECH_DVB_T_PCI:
		ir_codes = &ir_codes_adstech_dvb_t_pci_table;
		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_table;
		ir->gpio_addr = MO_GP1_IO;
		ir->mask_keycode = 0x1f;
		ir->mask_keyup = 0x40;
		ir->polling = 1; /* ms */
		break;
	case CX88_BOARD_AVERTV_303:
	case CX88_BOARD_AVERTV_STUDIO_303:
		ir_codes         = &ir_codes_avertv_303_table;
		ir->gpio_addr    = MO_GP2_IO;
		ir->mask_keycode = 0xfb;
		ir->mask_keydown = 0x02;
		ir->polling      = 50; /* ms */
		break;
	case CX88_BOARD_OMICOM_SS4_PCI:
	case CX88_BOARD_SATTRADE_ST4200:
	case CX88_BOARD_TBS_8920:
	case CX88_BOARD_TBS_8910:
	case CX88_BOARD_PROF_7300:
	case CX88_BOARD_PROF_7301:
	case CX88_BOARD_PROF_6200:
		ir_codes = &ir_codes_tbs_nec_table;
		ir_type = IR_TYPE_PD;
		ir->sampling = 0xff00; /* address */
		break;
	case CX88_BOARD_TEVII_S460:
	case CX88_BOARD_TEVII_S420:
		ir_codes = &ir_codes_tevii_nec_table;
		ir_type = IR_TYPE_PD;
		ir->sampling = 0xff00; /* address */
		break;
	case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
		ir_codes         = &ir_codes_dntv_live_dvbt_pro_table;
		ir_type          = IR_TYPE_PD;
		ir->sampling     = 0xff00; /* address */
		break;
	case CX88_BOARD_NORWOOD_MICRO:
		ir_codes         = &ir_codes_norwood_table;
		ir->gpio_addr    = MO_GP1_IO;
		ir->mask_keycode = 0x0e;
		ir->mask_keyup   = 0x80;
		ir->polling      = 50; /* ms */
		break;
	case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
		ir_codes         = &ir_codes_npgtech_table;
		ir->gpio_addr    = MO_GP0_IO;
		ir->mask_keycode = 0xfa;
		ir->polling      = 50; /* ms */
		break;
	case CX88_BOARD_PINNACLE_PCTV_HD_800i:
		ir_codes         = &ir_codes_pinnacle_pctv_hd_table;
		ir_type          = IR_TYPE_RC5;
		ir->sampling     = 1;
		break;
	case CX88_BOARD_POWERCOLOR_REAL_ANGEL:
		ir_codes         = &ir_codes_powercolor_real_angel_table;
		ir->gpio_addr    = MO_GP2_IO;
		ir->mask_keycode = 0x7e;
		ir->polling      = 100; /* ms */
		break;
	}

	if (NULL == ir_codes) {
		err = -ENODEV;
		goto err_out_free;
	}

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

	err = ir_input_init(input_dev, &ir->ir, ir_type);
	if (err < 0)
		goto err_out_free;

	input_dev->name = ir->name;
	input_dev->phys = ir->phys;
	input_dev->id.bustype = BUS_PCI;
	input_dev->id.version = 1;
	if (pci->subsystem_vendor) {
		input_dev->id.vendor = pci->subsystem_vendor;
		input_dev->id.product = pci->subsystem_device;
	} else {
		input_dev->id.vendor = pci->vendor;
		input_dev->id.product = pci->device;
	}
	input_dev->dev.parent = &pci->dev;
	/* record handles to ourself */
	ir->core = core;
	core->ir = ir;

	ir->props.priv = core;
	ir->props.open = cx88_ir_open;
	ir->props.close = cx88_ir_close;

	/* all done */
	err = ir_input_register(ir->input, ir_codes, &ir->props, MODULE_NAME);
	if (err)
		goto err_out_free;

	return 0;

 err_out_free:
	core->ir = NULL;
	kfree(ir);
	return err;
}

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;

	cx88_ir_stop(core);
	ir_input_unregister(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, ircode;
	int i, start, range, toggle, dev, code;

	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->boardnr) {
	case CX88_BOARD_TEVII_S460:
	case CX88_BOARD_TEVII_S420:
	case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
	case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
	case CX88_BOARD_OMICOM_SS4_PCI:
	case CX88_BOARD_SATTRADE_ST4200:
	case CX88_BOARD_TBS_8920:
	case CX88_BOARD_TBS_8910:
	case CX88_BOARD_PROF_7300:
	case CX88_BOARD_PROF_7301:
	case CX88_BOARD_PROF_6200:
		ircode = ir_decode_pulsedistance(ir->samples, ir->scount, 1, 4);

		if (ircode == 0xffffffff) { /* decoding error */
			ir_dprintk("pulse distance decoding error\n");
			break;
		}

		ir_dprintk("pulse distance decoded: %x\n", ircode);

		if (ircode == 0) { /* key still pressed */
			ir_dprintk("pulse distance decoded repeat code\n");
			ir->release = jiffies + msecs_to_jiffies(120);
			break;
		}

		if ((ircode & 0xffff) != (ir->sampling & 0xffff)) { /* wrong address */
			ir_dprintk("pulse distance decoded wrong address\n");
			break;
		}

		if (((~ircode >> 24) & 0xff) != ((ircode >> 16) & 0xff)) { /* wrong checksum */
			ir_dprintk("pulse distance decoded wrong check sum\n");
			break;
		}

		ir_dprintk("Key Code: %x\n", (ircode >> 16) & 0x7f);

		ir_input_keydown(ir->input, &ir->ir, (ircode >> 16) & 0x7f);
		ir->release = jiffies + msecs_to_jiffies(120);
		break;
	case CX88_BOARD_HAUPPAUGE:
	case CX88_BOARD_HAUPPAUGE_DVB_T1:
	case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
	case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
	case CX88_BOARD_HAUPPAUGE_HVR1100:
	case CX88_BOARD_HAUPPAUGE_HVR3000:
	case CX88_BOARD_HAUPPAUGE_HVR4000:
	case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
	case CX88_BOARD_PCHDTV_HD3000:
	case CX88_BOARD_PCHDTV_HD5500:
	case CX88_BOARD_HAUPPAUGE_IRONLY:
		ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
		ir_dprintk("biphase decoded: %x\n", ircode);
		/*
		 * RC5 has an extension bit which adds a new range
		 * of available codes, this is detected here. Also
		 * hauppauge remotes (black/silver) always use
		 * specific device ids. If we do not filter the
		 * device ids then messages destined for devices
		 * such as TVs (id=0) will get through to the
		 * device causing mis-fired events.
		 */
		/* split rc5 data block ... */
		start = (ircode & 0x2000) >> 13;
		range = (ircode & 0x1000) >> 12;
		toggle= (ircode & 0x0800) >> 11;
		dev   = (ircode & 0x07c0) >> 6;
		code  = (ircode & 0x003f) | ((range << 6) ^ 0x0040);
		if( start != 1)
			/* no key pressed */
			break;
		if ( dev != 0x1e && dev != 0x1f )
			/* not a hauppauge remote */
			break;
		ir_input_keydown(ir->input, &ir->ir, code);
		ir->release = jiffies + msecs_to_jiffies(120);
		break;
	case CX88_BOARD_PINNACLE_PCTV_HD_800i:
		ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
		ir_dprintk("biphase decoded: %x\n", ircode);
		if ((ircode & 0xfffff000) != 0x3000)
			break;
		ir_input_keydown(ir->input, &ir->ir, ircode & 0x3f);
		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	/*
1da177e4 LT	2	*
	3	* Device driver for GPIO attached remote control interfaces
	4	* on Conexant 2388x based TV/DVB cards.
	5	*
	6	* Copyright (c) 2003 Pavel Machek
	7	* Copyright (c) 2004 Gerd Knorr
fc40b261	8	* Copyright (c) 2004, 2005 Chris Pascoe
1da177e4 LT	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; either version 2 of the License, or
	13	* (at your option) any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	23	*/
	24
	25	#include <linux/init.h>
3c1c48bb	26	#include <linux/hrtimer.h>
1da177e4 LT	27	#include <linux/input.h>
1da177e4 LT	28	#include <linux/pci.h>
5a0e3ad6	29	#include <linux/slab.h>
1da177e4	30	#include <linux/module.h>
1da177e4	31
1da177e4	32	#include "cx88.h"
d21838dd	33	#include <media/ir-common.h>
1da177e4	34
727e625c MCC	35	#define MODULE_NAME "cx88xx"
727e625c MCC	36
1da177e4 LT	37	/* ---------------------------------------------------------------------- */
1da177e4 LT	38
1da177e4	39	struct cx88_IR {
41ef7c1e	40	struct cx88_core *core;
b7df3910	41	struct input_dev *input;
41ef7c1e	42	struct ir_input_state ir;
92f4fc10 MCC	43	struct ir_dev_props props;
	44
	45	int users;
	46
41ef7c1e MCC	47	char name[32];
41ef7c1e MCC	48	char phys[32];
1da177e4 LT	49
1da177e4 LT	50	/* sample from gpio pin 16 */
fc40b261	51	u32 sampling;
41ef7c1e MCC	52	u32 samples[16];
	53	int scount;
	54	unsigned long release;
1da177e4 LT	55
1da177e4 LT	56	/* poll external decoder */
41ef7c1e	57	int polling;
3c1c48bb	58	struct hrtimer timer;
41ef7c1e MCC	59	u32 gpio_addr;
	60	u32 last_gpio;
	61	u32 mask_keycode;
	62	u32 mask_keydown;
	63	u32 mask_keyup;
1da177e4 LT	64	};
1da177e4 LT	65
ff699e6b	66	static int ir_debug;
41ef7c1e	67	module_param(ir_debug, int, 0644); /* debug level [IR] */
1da177e4 LT	68	MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
	69
	70	#define ir_dprintk(fmt, arg...) if (ir_debug) \
e52e98a7	71	printk(KERN_DEBUG "%s IR: " fmt , ir->core->name , ##arg)
1da177e4 LT	72
	73	/* ---------------------------------------------------------------------- */
	74
	75	static void cx88_ir_handle_key(struct cx88_IR *ir)
	76	{
	77	struct cx88_core *core = ir->core;
680543c5	78	u32 gpio, data, auxgpio;
1da177e4 LT	79
	80	/* read gpio value */
	81	gpio = cx_read(ir->gpio_addr);
6a59d64c	82	switch (core->boardnr) {
829ea964	83	case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
680543c5 RC	84	/* This board apparently uses a combination of 2 GPIO
	85	to represent the keys. Additionally, the second GPIO
	86	can be used for parity.
	87
	88	Example:
	89
	90	for key "5"
	91	gpio = 0x758, auxgpio = 0xe5 or 0xf5
	92	for key "Power"
	93	gpio = 0x758, auxgpio = 0xed or 0xfd
	94	*/
	95
	96	auxgpio = cx_read(MO_GP1_IO);
	97	/* Take out the parity part */
a62c61d3	98	gpio=(gpio & 0x7fd) + (auxgpio & 0xef);
829ea964 MK	99	break;
829ea964 MK	100	case CX88_BOARD_WINFAST_DTV1000:
3047a176	101	case CX88_BOARD_WINFAST_DTV1800H:
3e9a4897	102	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
e7d11ecb EP	103	gpio = (gpio & 0x6ff) \| ((cx_read(MO_GP1_IO) << 8) & 0x900);
e7d11ecb EP	104	auxgpio = gpio;
829ea964 MK	105	break;
829ea964 MK	106	default:
680543c5	107	auxgpio = gpio;
829ea964	108	}
1da177e4	109	if (ir->polling) {
680543c5	110	if (ir->last_gpio == auxgpio)
1da177e4	111	return;
680543c5	112	ir->last_gpio = auxgpio;
1da177e4 LT	113	}
	114
	115	/* extract data */
	116	data = ir_extract_bits(gpio, ir->mask_keycode);
	117	ir_dprintk("irq gpio=0x%x code=%d \| %s%s%s\n",
41ef7c1e MCC	118	gpio, data,
	119	ir->polling ? "poll" : "irq",
	120	(gpio & ir->mask_keydown) ? " down" : "",
	121	(gpio & ir->mask_keyup) ? " up" : "");
1da177e4	122
6a59d64c	123	if (ir->core->boardnr == CX88_BOARD_NORWOOD_MICRO) {
d1009bd7 PN	124	u32 gpio_key = cx_read(MO_GP0_IO);
	125
	126	data = (data << 4) \| ((gpio_key & 0xf0) >> 4);
	127
8573b74a	128	ir_input_keydown(ir->input, &ir->ir, data);
d1009bd7 PN	129	ir_input_nokey(ir->input, &ir->ir);
	130
	131	} else if (ir->mask_keydown) {
1da177e4 LT	132	/* bit set on keydown */
1da177e4 LT	133	if (gpio & ir->mask_keydown) {
8573b74a	134	ir_input_keydown(ir->input, &ir->ir, data);
1da177e4	135	} else {
b7df3910	136	ir_input_nokey(ir->input, &ir->ir);
1da177e4 LT	137	}
	138
	139	} else if (ir->mask_keyup) {
	140	/* bit cleared on keydown */
	141	if (0 == (gpio & ir->mask_keyup)) {
8573b74a	142	ir_input_keydown(ir->input, &ir->ir, data);
1da177e4	143	} else {
b7df3910	144	ir_input_nokey(ir->input, &ir->ir);
1da177e4 LT	145	}
	146
	147	} else {
	148	/* can't distinguish keydown/up :-/ */
8573b74a	149	ir_input_keydown(ir->input, &ir->ir, data);
b7df3910	150	ir_input_nokey(ir->input, &ir->ir);
1da177e4 LT	151	}
	152	}
	153
3c1c48bb	154	static enum hrtimer_restart cx88_ir_work(struct hrtimer *timer)
1da177e4	155	{
3c1c48bb AH	156	unsigned long missed;
3c1c48bb AH	157	struct cx88_IR *ir = container_of(timer, struct cx88_IR, timer);
1da177e4 LT	158
1da177e4 LT	159	cx88_ir_handle_key(ir);
3c1c48bb AH	160	missed = hrtimer_forward_now(&ir->timer,
	161	ktime_set(0, ir->polling * 1000000));
	162	if (missed > 1)
	163	ir_dprintk("Missed ticks %ld\n", missed - 1);
	164
	165	return HRTIMER_RESTART;
1da177e4 LT	166	}
1da177e4 LT	167
92f4fc10	168	static int __cx88_ir_start(void *priv)
b07b4783	169	{
92f4fc10 MCC	170	struct cx88_core *core = priv;
	171	struct cx88_IR *ir;
	172
	173	if (!core \|\| !core->ir)
	174	return -EINVAL;
	175
	176	ir = core->ir;
	177
b07b4783	178	if (ir->polling) {
3c1c48bb AH	179	hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
	180	ir->timer.function = cx88_ir_work;
	181	hrtimer_start(&ir->timer,
	182	ktime_set(0, ir->polling * 1000000),
	183	HRTIMER_MODE_REL);
b07b4783 DT	184	}
b07b4783 DT	185	if (ir->sampling) {
8ddac9ee	186	core->pci_irqmask \|= PCI_INT_IR_SMPINT;
b07b4783 DT	187	cx_write(MO_DDS_IO, 0xa80a80); /* 4 kHz sample rate */
	188	cx_write(MO_DDSCFG_IO, 0x5); /* enable */
	189	}
92f4fc10	190	return 0;
b07b4783 DT	191	}
b07b4783 DT	192
92f4fc10	193	static void __cx88_ir_stop(void *priv)
b07b4783	194	{
92f4fc10 MCC	195	struct cx88_core *core = priv;
	196	struct cx88_IR *ir;
	197
	198	if (!core \|\| !core->ir)
	199	return;
	200
	201	ir = core->ir;
b07b4783 DT	202	if (ir->sampling) {
b07b4783 DT	203	cx_write(MO_DDSCFG_IO, 0x0);
8ddac9ee	204	core->pci_irqmask &= ~PCI_INT_IR_SMPINT;
b07b4783 DT	205	}
b07b4783 DT	206
569b7ec7	207	if (ir->polling)
3c1c48bb	208	hrtimer_cancel(&ir->timer);
b07b4783 DT	209	}
b07b4783 DT	210
92f4fc10 MCC	211	int cx88_ir_start(struct cx88_core *core)
	212	{
	213	if (core->ir->users)
	214	return __cx88_ir_start(core);
	215
	216	return 0;
	217	}
	218
	219	void cx88_ir_stop(struct cx88_core *core)
	220	{
	221	if (core->ir->users)
	222	__cx88_ir_stop(core);
	223	}
	224
	225	static int cx88_ir_open(void *priv)
	226	{
	227	struct cx88_core *core = priv;
	228
	229	core->ir->users++;
	230	return __cx88_ir_start(core);
	231	}
	232
	233	static void cx88_ir_close(void *priv)
	234	{
	235	struct cx88_core *core = priv;
	236
	237	core->ir->users--;
	238	if (!core->ir->users)
	239	__cx88_ir_stop(core);
	240	}
	241
1da177e4 LT	242	/* ---------------------------------------------------------------------- */
	243
	244	int cx88_ir_init(struct cx88_core core, struct pci_dev pci)
	245	{
	246	struct cx88_IR *ir;
b7df3910	247	struct input_dev *input_dev;
715a2233	248	struct ir_scancode_table *ir_codes = NULL;
971e8298	249	u64 ir_type = IR_TYPE_OTHER;
b07b4783	250	int err = -ENOMEM;
1da177e4	251
b7df3910 DT	252	ir = kzalloc(sizeof(*ir), GFP_KERNEL);
b7df3910 DT	253	input_dev = input_allocate_device();
b07b4783 DT	254	if (!ir \|\| !input_dev)
b07b4783 DT	255	goto err_out_free;
b7df3910 DT	256
b7df3910 DT	257	ir->input = input_dev;
1da177e4 LT	258
1da177e4 LT	259	/* detect & configure */
6a59d64c	260	switch (core->boardnr) {
1da177e4	261	case CX88_BOARD_DNTV_LIVE_DVB_T:
b45009b0	262	case CX88_BOARD_KWORLD_DVB_T:
28ecc449	263	case CX88_BOARD_KWORLD_DVB_T_CX22702:
715a2233	264	ir_codes = &ir_codes_dntv_live_dvb_t_table;
41ef7c1e	265	ir->gpio_addr = MO_GP1_IO;
1da177e4	266	ir->mask_keycode = 0x1f;
41ef7c1e MCC	267	ir->mask_keyup = 0x60;
41ef7c1e MCC	268	ir->polling = 50; /* ms */
1da177e4	269	break;
e52e98a7	270	case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
715a2233	271	ir_codes = &ir_codes_cinergy_1400_table;
e52e98a7	272	ir_type = IR_TYPE_PD;
fc40b261	273	ir->sampling = 0xeb04; /* address */
e52e98a7	274	break;
1da177e4 LT	275	case CX88_BOARD_HAUPPAUGE:
1da177e4 LT	276	case CX88_BOARD_HAUPPAUGE_DVB_T1:
fb56cb65 ST	277	case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
fb56cb65 ST	278	case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
611900c1	279	case CX88_BOARD_HAUPPAUGE_HVR1100:
76dc82ab	280	case CX88_BOARD_HAUPPAUGE_HVR3000:
5bd1b663 ST	281	case CX88_BOARD_HAUPPAUGE_HVR4000:
5bd1b663 ST	282	case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
f1735bb2 EB	283	case CX88_BOARD_PCHDTV_HD3000:
f1735bb2 EB	284	case CX88_BOARD_PCHDTV_HD5500:
501d8cd4	285	case CX88_BOARD_HAUPPAUGE_IRONLY:
715a2233	286	ir_codes = &ir_codes_hauppauge_new_table;
41ef7c1e MCC	287	ir_type = IR_TYPE_RC5;
41ef7c1e MCC	288	ir->sampling = 1;
1da177e4	289	break;
2de873e6	290	case CX88_BOARD_WINFAST_DTV2000H:
4d14c833	291	case CX88_BOARD_WINFAST_DTV2000H_J:
3047a176	292	case CX88_BOARD_WINFAST_DTV1800H:
715a2233	293	ir_codes = &ir_codes_winfast_table;
41ef7c1e	294	ir->gpio_addr = MO_GP0_IO;
1da177e4	295	ir->mask_keycode = 0x8f8;
41ef7c1e	296	ir->mask_keyup = 0x100;
2de873e6	297	ir->polling = 50; /* ms */
1da177e4	298	break;
ff97d93d	299	case CX88_BOARD_WINFAST2000XP_EXPERT:
e7d11ecb	300	case CX88_BOARD_WINFAST_DTV1000:
3e9a4897	301	case CX88_BOARD_WINFAST_TV2000_XP_GLOBAL:
715a2233	302	ir_codes = &ir_codes_winfast_table;
ff97d93d HP	303	ir->gpio_addr = MO_GP0_IO;
	304	ir->mask_keycode = 0x8f8;
	305	ir->mask_keyup = 0x100;
	306	ir->polling = 1; /* ms */
	307	break;
1da177e4	308	case CX88_BOARD_IODATA_GVBCTV7E:
715a2233	309	ir_codes = &ir_codes_iodata_bctv7e_table;
41ef7c1e	310	ir->gpio_addr = MO_GP0_IO;
1da177e4 LT	311	ir->mask_keycode = 0xfd;
1da177e4 LT	312	ir->mask_keydown = 0x02;
41ef7c1e	313	ir->polling = 5; /* ms */
1da177e4	314	break;
ff97d93d	315	case CX88_BOARD_PROLINK_PLAYTVPVR:
239df2e2	316	case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
715a2233	317	ir_codes = &ir_codes_pixelview_table;
41ef7c1e	318	ir->gpio_addr = MO_GP1_IO;
239df2e2	319	ir->mask_keycode = 0x1f;
41ef7c1e MCC	320	ir->mask_keyup = 0x80;
41ef7c1e MCC	321	ir->polling = 1; /* ms */
239df2e2	322	break;
7f0dd179	323	case CX88_BOARD_PROLINK_PV_8000GT:
a31d2bb7	324	case CX88_BOARD_PROLINK_PV_GLOBAL_XTREME:
715a2233	325	ir_codes = &ir_codes_pixelview_new_table;
7f0dd179 MCC	326	ir->gpio_addr = MO_GP1_IO;
	327	ir->mask_keycode = 0x3f;
	328	ir->mask_keyup = 0x80;
	329	ir->polling = 1; /* ms */
	330	break;
b639f9d2	331	case CX88_BOARD_KWORLD_LTV883:
715a2233	332	ir_codes = &ir_codes_pixelview_table;
b639f9d2 NS	333	ir->gpio_addr = MO_GP1_IO;
	334	ir->mask_keycode = 0x1f;
	335	ir->mask_keyup = 0x60;
	336	ir->polling = 1; /* ms */
	337	break;
a82decf6	338	case CX88_BOARD_ADSTECH_DVB_T_PCI:
715a2233	339	ir_codes = &ir_codes_adstech_dvb_t_pci_table;
41ef7c1e	340	ir->gpio_addr = MO_GP1_IO;
a82decf6	341	ir->mask_keycode = 0xbf;
41ef7c1e MCC	342	ir->mask_keyup = 0x40;
	343	ir->polling = 50; /* ms */
	344	break;
	345	case CX88_BOARD_MSI_TVANYWHERE_MASTER:
715a2233	346	ir_codes = &ir_codes_msi_tvanywhere_table;
41ef7c1e MCC	347	ir->gpio_addr = MO_GP1_IO;
	348	ir->mask_keycode = 0x1f;
	349	ir->mask_keyup = 0x40;
	350	ir->polling = 1; /* ms */
a82decf6	351	break;
899ad11b	352	case CX88_BOARD_AVERTV_303:
565f4949	353	case CX88_BOARD_AVERTV_STUDIO_303:
715a2233	354	ir_codes = &ir_codes_avertv_303_table;
899ad11b GG	355	ir->gpio_addr = MO_GP2_IO;
	356	ir->mask_keycode = 0xfb;
	357	ir->mask_keydown = 0x02;
	358	ir->polling = 50; /* ms */
	359	break;
d8d86225 IL	360	case CX88_BOARD_OMICOM_SS4_PCI:
	361	case CX88_BOARD_SATTRADE_ST4200:
	362	case CX88_BOARD_TBS_8920:
	363	case CX88_BOARD_TBS_8910:
	364	case CX88_BOARD_PROF_7300:
b699c271	365	case CX88_BOARD_PROF_7301:
d8d86225 IL	366	case CX88_BOARD_PROF_6200:
	367	ir_codes = &ir_codes_tbs_nec_table;
	368	ir_type = IR_TYPE_PD;
	369	ir->sampling = 0xff00; /* address */
	370	break;
	371	case CX88_BOARD_TEVII_S460:
	372	case CX88_BOARD_TEVII_S420:
9d2ba7ad	373	ir_codes = &ir_codes_tevii_nec_table;
d8d86225 IL	374	ir_type = IR_TYPE_PD;
	375	ir->sampling = 0xff00; /* address */
	376	break;
fc40b261	377	case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
715a2233 MCC	378	ir_codes = &ir_codes_dntv_live_dvbt_pro_table;
	379	ir_type = IR_TYPE_PD;
	380	ir->sampling = 0xff00; /* address */
fc40b261	381	break;
d1009bd7	382	case CX88_BOARD_NORWOOD_MICRO:
715a2233	383	ir_codes = &ir_codes_norwood_table;
d1009bd7 PN	384	ir->gpio_addr = MO_GP1_IO;
	385	ir->mask_keycode = 0x0e;
	386	ir->mask_keyup = 0x80;
	387	ir->polling = 50; /* ms */
	388	break;
be4f4519	389	case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
715a2233 MCC	390	ir_codes = &ir_codes_npgtech_table;
715a2233 MCC	391	ir->gpio_addr = MO_GP0_IO;
680543c5	392	ir->mask_keycode = 0xfa;
715a2233	393	ir->polling = 50; /* ms */
680543c5	394	break;
9121106a	395	case CX88_BOARD_PINNACLE_PCTV_HD_800i:
715a2233 MCC	396	ir_codes = &ir_codes_pinnacle_pctv_hd_table;
	397	ir_type = IR_TYPE_RC5;
	398	ir->sampling = 1;
9121106a	399	break;
ba928034	400	case CX88_BOARD_POWERCOLOR_REAL_ANGEL:
715a2233 MCC	401	ir_codes = &ir_codes_powercolor_real_angel_table;
715a2233 MCC	402	ir->gpio_addr = MO_GP2_IO;
ba928034	403	ir->mask_keycode = 0x7e;
715a2233	404	ir->polling = 100; /* ms */
ba928034	405	break;
1da177e4	406	}
b45009b0	407
1da177e4	408	if (NULL == ir_codes) {
b07b4783 DT	409	err = -ENODEV;
b07b4783 DT	410	goto err_out_free;
1da177e4 LT	411	}
	412
	413	/* init input device */
6a59d64c	414	snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)", core->board.name);
41ef7c1e	415	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
1da177e4	416
579e7d60	417	err = ir_input_init(input_dev, &ir->ir, ir_type);
055cd556 MCC	418	if (err < 0)
	419	goto err_out_free;
	420
b7df3910 DT	421	input_dev->name = ir->name;
	422	input_dev->phys = ir->phys;
	423	input_dev->id.bustype = BUS_PCI;
	424	input_dev->id.version = 1;
1da177e4	425	if (pci->subsystem_vendor) {
b7df3910 DT	426	input_dev->id.vendor = pci->subsystem_vendor;
b7df3910 DT	427	input_dev->id.product = pci->subsystem_device;
1da177e4	428	} else {
b7df3910 DT	429	input_dev->id.vendor = pci->vendor;
b7df3910 DT	430	input_dev->id.product = pci->device;
1da177e4	431	}
2c8a3a33	432	input_dev->dev.parent = &pci->dev;
1da177e4 LT	433	/* record handles to ourself */
	434	ir->core = core;
	435	core->ir = ir;
	436
92f4fc10 MCC	437	ir->props.priv = core;
	438	ir->props.open = cx88_ir_open;
	439	ir->props.close = cx88_ir_close;
1da177e4 LT	440
1da177e4 LT	441	/* all done */
92f4fc10	442	err = ir_input_register(ir->input, ir_codes, &ir->props, MODULE_NAME);
b07b4783	443	if (err)
92f4fc10	444	goto err_out_free;
1da177e4 LT	445
1da177e4 LT	446	return 0;
b07b4783	447
b07b4783	448	err_out_free:
92f4fc10	449	core->ir = NULL;
b07b4783 DT	450	kfree(ir);
b07b4783 DT	451	return err;
1da177e4 LT	452	}
	453
	454	int cx88_ir_fini(struct cx88_core *core)
	455	{
	456	struct cx88_IR *ir = core->ir;
	457
	458	/* skip detach on non attached boards */
	459	if (NULL == ir)
	460	return 0;
	461
92f4fc10	462	cx88_ir_stop(core);
38ef6aa8	463	ir_input_unregister(ir->input);
1da177e4 LT	464	kfree(ir);
	465
	466	/* done */
	467	core->ir = NULL;
	468	return 0;
	469	}
	470
	471	/* ---------------------------------------------------------------------- */
	472
	473	void cx88_ir_irq(struct cx88_core *core)
	474	{
	475	struct cx88_IR *ir = core->ir;
e52e98a7	476	u32 samples, ircode;
34c08029	477	int i, start, range, toggle, dev, code;
1da177e4 LT	478
	479	if (NULL == ir)
	480	return;
	481	if (!ir->sampling)
	482	return;
	483
	484	samples = cx_read(MO_SAMPLE_IO);
41ef7c1e	485	if (0 != samples && 0xffffffff != samples) {
1da177e4 LT	486	/* record sample data */
	487	if (ir->scount < ARRAY_SIZE(ir->samples))
	488	ir->samples[ir->scount++] = samples;
	489	return;
	490	}
	491	if (!ir->scount) {
	492	/* nothing to sample */
41ef7c1e	493	if (ir->ir.keypressed && time_after(jiffies, ir->release))
b7df3910	494	ir_input_nokey(ir->input, &ir->ir);
1da177e4 LT	495	return;
	496	}
	497
	498	/* have a complete sample */
	499	if (ir->scount < ARRAY_SIZE(ir->samples))
	500	ir->samples[ir->scount++] = samples;
	501	for (i = 0; i < ir->scount; i++)
	502	ir->samples[i] = ~ir->samples[i];
	503	if (ir_debug)
41ef7c1e	504	ir_dump_samples(ir->samples, ir->scount);
1da177e4 LT	505
1da177e4 LT	506	/* decode it */
6a59d64c	507	switch (core->boardnr) {
d8d86225 IL	508	case CX88_BOARD_TEVII_S460:
d8d86225 IL	509	case CX88_BOARD_TEVII_S420:
e52e98a7	510	case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
fc40b261	511	case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
d8d86225 IL	512	case CX88_BOARD_OMICOM_SS4_PCI:
	513	case CX88_BOARD_SATTRADE_ST4200:
	514	case CX88_BOARD_TBS_8920:
	515	case CX88_BOARD_TBS_8910:
	516	case CX88_BOARD_PROF_7300:
b699c271	517	case CX88_BOARD_PROF_7301:
d8d86225	518	case CX88_BOARD_PROF_6200:
e52e98a7 MCC	519	ircode = ir_decode_pulsedistance(ir->samples, ir->scount, 1, 4);
	520
	521	if (ircode == 0xffffffff) { /* decoding error */
	522	ir_dprintk("pulse distance decoding error\n");
	523	break;
	524	}
	525
	526	ir_dprintk("pulse distance decoded: %x\n", ircode);
	527
	528	if (ircode == 0) { /* key still pressed */
	529	ir_dprintk("pulse distance decoded repeat code\n");
	530	ir->release = jiffies + msecs_to_jiffies(120);
	531	break;
	532	}
	533
fc40b261	534	if ((ircode & 0xffff) != (ir->sampling & 0xffff)) { /* wrong address */
e52e98a7	535	ir_dprintk("pulse distance decoded wrong address\n");
4ac97914	536	break;
e52e98a7 MCC	537	}
	538
	539	if (((~ircode >> 24) & 0xff) != ((ircode >> 16) & 0xff)) { /* wrong checksum */
	540	ir_dprintk("pulse distance decoded wrong check sum\n");
	541	break;
	542	}
	543
	544	ir_dprintk("Key Code: %x\n", (ircode >> 16) & 0x7f);
	545
8573b74a	546	ir_input_keydown(ir->input, &ir->ir, (ircode >> 16) & 0x7f);
e52e98a7 MCC	547	ir->release = jiffies + msecs_to_jiffies(120);
e52e98a7 MCC	548	break;
1da177e4 LT	549	case CX88_BOARD_HAUPPAUGE:
1da177e4 LT	550	case CX88_BOARD_HAUPPAUGE_DVB_T1:
fb56cb65 ST	551	case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
fb56cb65 ST	552	case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
30367bfd	553	case CX88_BOARD_HAUPPAUGE_HVR1100:
76dc82ab	554	case CX88_BOARD_HAUPPAUGE_HVR3000:
5bd1b663 ST	555	case CX88_BOARD_HAUPPAUGE_HVR4000:
5bd1b663 ST	556	case CX88_BOARD_HAUPPAUGE_HVR4000LITE:
f1735bb2 EB	557	case CX88_BOARD_PCHDTV_HD3000:
f1735bb2 EB	558	case CX88_BOARD_PCHDTV_HD5500:
501d8cd4	559	case CX88_BOARD_HAUPPAUGE_IRONLY:
34c08029 DB	560	ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
	561	ir_dprintk("biphase decoded: %x\n", ircode);
	562	/*
	563	* RC5 has an extension bit which adds a new range
	564	* of available codes, this is detected here. Also
	565	* hauppauge remotes (black/silver) always use
	566	* specific device ids. If we do not filter the
	567	* device ids then messages destined for devices
	568	* such as TVs (id=0) will get through to the
	569	* device causing mis-fired events.
	570	*/
	571	/* split rc5 data block ... */
	572	start = (ircode & 0x2000) >> 13;
	573	range = (ircode & 0x1000) >> 12;
	574	toggle= (ircode & 0x0800) >> 11;
	575	dev = (ircode & 0x07c0) >> 6;
	576	code = (ircode & 0x003f) \| ((range << 6) ^ 0x0040);
	577	if( start != 1)
	578	/* no key pressed */
	579	break;
	580	if ( dev != 0x1e && dev != 0x1f )
	581	/* not a hauppauge remote */
	582	break;
8573b74a	583	ir_input_keydown(ir->input, &ir->ir, code);
34c08029 DB	584	ir->release = jiffies + msecs_to_jiffies(120);
	585	break;
	586	case CX88_BOARD_PINNACLE_PCTV_HD_800i:
e52e98a7 MCC	587	ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
	588	ir_dprintk("biphase decoded: %x\n", ircode);
	589	if ((ircode & 0xfffff000) != 0x3000)
1da177e4	590	break;
8573b74a	591	ir_input_keydown(ir->input, &ir->ir, ircode & 0x3f);
1da177e4 LT	592	ir->release = jiffies + msecs_to_jiffies(120);
	593	break;
	594	}
	595
	596	ir->scount = 0;
	597	return;
	598	}
	599
	600	/* ---------------------------------------------------------------------- */
	601
	602	MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
	603	MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
	604	MODULE_LICENSE("GPL");
1da177e4 LT	605	/*
	606	* Local variables:
	607	* c-basic-offset: 8
	608	* End:
	609	*/