[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/delay.h>
#include <linux/input.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <linux/moduleparam.h>

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

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

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

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

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

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

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

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

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

	/* read gpio value */
	gpio = cx_read(ir->gpio_addr);
	if (core->board == CX88_BOARD_NPGTECH_REALTV) {
		/* 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+=(auxgpio & 0xef);
	} else
		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->mask_keydown) {
		/* bit set on keydown */
		if (gpio & ir->mask_keydown) {
			ir_input_keydown(ir->input, &ir->ir, data, data);
		} else {
			ir_input_nokey(ir->input, &ir->ir);
		}

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

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

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

	schedule_work(&ir->work);
}

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

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

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

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

	ir = kzalloc(sizeof(*ir), GFP_KERNEL);
	input_dev = input_allocate_device();
	if (!ir || !input_dev) {
		kfree(ir);
		input_free_device(input_dev);
		return -ENOMEM;
	}

	ir->input = input_dev;

	/* detect & configure */
	switch (core->board) {
	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;
		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;
		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:
		ir_codes = ir_codes_hauppauge_new;
		ir_type = IR_TYPE_RC5;
		ir->sampling = 1;
		break;
	case CX88_BOARD_WINFAST2000XP_EXPERT:
		ir_codes = ir_codes_winfast;
		ir->gpio_addr = MO_GP0_IO;
		ir->mask_keycode = 0x8f8;
		ir->mask_keyup = 0x100;
		ir->polling = 1; /* ms */
		break;
	case CX88_BOARD_IODATA_GVBCTV7E:
		ir_codes = ir_codes_iodata_bctv7e;
		ir->gpio_addr = MO_GP0_IO;
		ir->mask_keycode = 0xfd;
		ir->mask_keydown = 0x02;
		ir->polling = 5; /* ms */
		break;
       case CX88_BOARD_PROLINK_PLAYTVPVR:
	case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
		ir_codes = ir_codes_pixelview;
		ir->gpio_addr = MO_GP1_IO;
		ir->mask_keycode = 0x1f;
		ir->mask_keyup = 0x80;
		ir->polling = 1; /* ms */
		break;
	case CX88_BOARD_KWORLD_LTV883:
		ir_codes = ir_codes_pixelview;
		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;
		ir->gpio_addr = MO_GP1_IO;
		ir->mask_keycode = 0xbf;
		ir->mask_keyup = 0x40;
		ir->polling = 50; /* ms */
		break;
	case CX88_BOARD_MSI_TVANYWHERE_MASTER:
		ir_codes = ir_codes_msi_tvanywhere;
		ir->gpio_addr = MO_GP1_IO;
		ir->mask_keycode = 0x1f;
		ir->mask_keyup = 0x40;
		ir->polling = 1; /* ms */
		break;
	case CX88_BOARD_AVERTV_303:
	case CX88_BOARD_AVERTV_STUDIO_303:
		ir_codes         = ir_codes_avertv_303;
		ir->gpio_addr    = MO_GP2_IO;
		ir->mask_keycode = 0xfb;
		ir->mask_keydown = 0x02;
		ir->polling      = 50; /* ms */
		break;
	case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
		ir_codes = ir_codes_dntv_live_dvbt_pro;
		ir_type = IR_TYPE_PD;
		ir->sampling = 0xff00; /* address */
		break;
	case CX88_BOARD_NPGTECH_REALTV:
		ir_codes = ir_codes_npgtech;
		ir->gpio_addr = MO_GP0_IO;
		ir->mask_keycode = 0xfa;
		ir->polling = 50; /* ms */
		break;
	}

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

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

	ir_input_init(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 (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->cdev.dev = &pci->dev;
	/* record handles to ourself */
	ir->core = core;
	core->ir = ir;

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

	/* all done */
	input_register_device(ir->input);

	return 0;
}

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

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

	if (ir->sampling) {
		cx_write(MO_DDSCFG_IO, 0x0);
		core->pci_irqmask &= ~(1 << 18);
	}
	if (ir->polling) {
		del_timer(&ir->timer);
		flush_scheduled_work();
	}

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

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

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

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

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

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

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

	/* decode it */
	switch (core->board) {
	case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
	case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
		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, (ircode >> 16) & 0xff);
		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:
		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, ircode);
		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>
	26	#include <linux/delay.h>
	27	#include <linux/input.h>
	28	#include <linux/pci.h>
	29	#include <linux/module.h>
	30	#include <linux/moduleparam.h>
	31
1da177e4	32	#include "cx88.h"
d21838dd	33	#include <media/ir-common.h>
1da177e4 LT	34
	35	/* ---------------------------------------------------------------------- */
	36
1da177e4	37	struct cx88_IR {
41ef7c1e	38	struct cx88_core *core;
b7df3910	39	struct input_dev *input;
41ef7c1e MCC	40	struct ir_input_state ir;
	41	char name[32];
	42	char phys[32];
1da177e4 LT	43
1da177e4 LT	44	/* sample from gpio pin 16 */
fc40b261	45	u32 sampling;
41ef7c1e MCC	46	u32 samples[16];
	47	int scount;
	48	unsigned long release;
1da177e4 LT	49
1da177e4 LT	50	/* poll external decoder */
41ef7c1e MCC	51	int polling;
	52	struct work_struct work;
	53	struct timer_list timer;
	54	u32 gpio_addr;
	55	u32 last_gpio;
	56	u32 mask_keycode;
	57	u32 mask_keydown;
	58	u32 mask_keyup;
1da177e4 LT	59	};
	60
	61	static int ir_debug = 0;
41ef7c1e	62	module_param(ir_debug, int, 0644); /* debug level [IR] */
1da177e4 LT	63	MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
	64
	65	#define ir_dprintk(fmt, arg...) if (ir_debug) \
e52e98a7	66	printk(KERN_DEBUG "%s IR: " fmt , ir->core->name , ##arg)
1da177e4 LT	67
	68	/* ---------------------------------------------------------------------- */
	69
	70	static void cx88_ir_handle_key(struct cx88_IR *ir)
	71	{
	72	struct cx88_core *core = ir->core;
680543c5	73	u32 gpio, data, auxgpio;
1da177e4 LT	74
	75	/* read gpio value */
	76	gpio = cx_read(ir->gpio_addr);
680543c5 RC	77	if (core->board == CX88_BOARD_NPGTECH_REALTV) {
	78	/* This board apparently uses a combination of 2 GPIO
	79	to represent the keys. Additionally, the second GPIO
	80	can be used for parity.
	81
	82	Example:
	83
	84	for key "5"
	85	gpio = 0x758, auxgpio = 0xe5 or 0xf5
	86	for key "Power"
	87	gpio = 0x758, auxgpio = 0xed or 0xfd
	88	*/
	89
	90	auxgpio = cx_read(MO_GP1_IO);
	91	/* Take out the parity part */
	92	gpio+=(auxgpio & 0xef);
	93	} else
	94	auxgpio = gpio;
	95
1da177e4	96	if (ir->polling) {
680543c5	97	if (ir->last_gpio == auxgpio)
1da177e4	98	return;
680543c5	99	ir->last_gpio = auxgpio;
1da177e4 LT	100	}
	101
	102	/* extract data */
	103	data = ir_extract_bits(gpio, ir->mask_keycode);
	104	ir_dprintk("irq gpio=0x%x code=%d \| %s%s%s\n",
41ef7c1e MCC	105	gpio, data,
	106	ir->polling ? "poll" : "irq",
	107	(gpio & ir->mask_keydown) ? " down" : "",
	108	(gpio & ir->mask_keyup) ? " up" : "");
1da177e4 LT	109
	110	if (ir->mask_keydown) {
	111	/* bit set on keydown */
	112	if (gpio & ir->mask_keydown) {
b7df3910	113	ir_input_keydown(ir->input, &ir->ir, data, data);
1da177e4	114	} else {
b7df3910	115	ir_input_nokey(ir->input, &ir->ir);
1da177e4 LT	116	}
	117
	118	} else if (ir->mask_keyup) {
	119	/* bit cleared on keydown */
	120	if (0 == (gpio & ir->mask_keyup)) {
b7df3910	121	ir_input_keydown(ir->input, &ir->ir, data, data);
1da177e4	122	} else {
b7df3910	123	ir_input_nokey(ir->input, &ir->ir);
1da177e4 LT	124	}
	125
	126	} else {
	127	/* can't distinguish keydown/up :-/ */
b7df3910 DT	128	ir_input_keydown(ir->input, &ir->ir, data, data);
b7df3910 DT	129	ir_input_nokey(ir->input, &ir->ir);
1da177e4 LT	130	}
	131	}
	132
	133	static void ir_timer(unsigned long data)
	134	{
41ef7c1e	135	struct cx88_IR ir = (struct cx88_IR )data;
1da177e4 LT	136
	137	schedule_work(&ir->work);
	138	}
	139
	140	static void cx88_ir_work(void *data)
	141	{
	142	struct cx88_IR *ir = data;
	143	unsigned long timeout;
	144
	145	cx88_ir_handle_key(ir);
	146	timeout = jiffies + (ir->polling * HZ / 1000);
	147	mod_timer(&ir->timer, timeout);
	148	}
	149
	150	/* ---------------------------------------------------------------------- */
	151
	152	int cx88_ir_init(struct cx88_core core, struct pci_dev pci)
	153	{
	154	struct cx88_IR *ir;
b7df3910	155	struct input_dev *input_dev;
1da177e4 LT	156	IR_KEYTAB_TYPE *ir_codes = NULL;
	157	int ir_type = IR_TYPE_OTHER;
	158
b7df3910 DT	159	ir = kzalloc(sizeof(*ir), GFP_KERNEL);
	160	input_dev = input_allocate_device();
	161	if (!ir \|\| !input_dev) {
	162	kfree(ir);
	163	input_free_device(input_dev);
1da177e4	164	return -ENOMEM;
b7df3910 DT	165	}
	166
	167	ir->input = input_dev;
1da177e4 LT	168
	169	/* detect & configure */
	170	switch (core->board) {
	171	case CX88_BOARD_DNTV_LIVE_DVB_T:
b45009b0	172	case CX88_BOARD_KWORLD_DVB_T:
28ecc449	173	case CX88_BOARD_KWORLD_DVB_T_CX22702:
41ef7c1e MCC	174	ir_codes = ir_codes_dntv_live_dvb_t;
41ef7c1e MCC	175	ir->gpio_addr = MO_GP1_IO;
1da177e4	176	ir->mask_keycode = 0x1f;
41ef7c1e MCC	177	ir->mask_keyup = 0x60;
41ef7c1e MCC	178	ir->polling = 50; /* ms */
1da177e4	179	break;
e52e98a7 MCC	180	case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
	181	ir_codes = ir_codes_cinergy_1400;
	182	ir_type = IR_TYPE_PD;
fc40b261	183	ir->sampling = 0xeb04; /* address */
e52e98a7	184	break;
1da177e4 LT	185	case CX88_BOARD_HAUPPAUGE:
1da177e4 LT	186	case CX88_BOARD_HAUPPAUGE_DVB_T1:
fb56cb65 ST	187	case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
fb56cb65 ST	188	case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
611900c1	189	case CX88_BOARD_HAUPPAUGE_HVR1100:
41ef7c1e MCC	190	ir_codes = ir_codes_hauppauge_new;
	191	ir_type = IR_TYPE_RC5;
	192	ir->sampling = 1;
1da177e4 LT	193	break;
1da177e4 LT	194	case CX88_BOARD_WINFAST2000XP_EXPERT:
41ef7c1e MCC	195	ir_codes = ir_codes_winfast;
41ef7c1e MCC	196	ir->gpio_addr = MO_GP0_IO;
1da177e4	197	ir->mask_keycode = 0x8f8;
41ef7c1e MCC	198	ir->mask_keyup = 0x100;
41ef7c1e MCC	199	ir->polling = 1; /* ms */
1da177e4 LT	200	break;
1da177e4 LT	201	case CX88_BOARD_IODATA_GVBCTV7E:
41ef7c1e MCC	202	ir_codes = ir_codes_iodata_bctv7e;
41ef7c1e MCC	203	ir->gpio_addr = MO_GP0_IO;
1da177e4 LT	204	ir->mask_keycode = 0xfd;
1da177e4 LT	205	ir->mask_keydown = 0x02;
41ef7c1e	206	ir->polling = 5; /* ms */
1da177e4	207	break;
a5daecba	208	case CX88_BOARD_PROLINK_PLAYTVPVR:
239df2e2	209	case CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO:
41ef7c1e MCC	210	ir_codes = ir_codes_pixelview;
41ef7c1e MCC	211	ir->gpio_addr = MO_GP1_IO;
239df2e2	212	ir->mask_keycode = 0x1f;
41ef7c1e MCC	213	ir->mask_keyup = 0x80;
41ef7c1e MCC	214	ir->polling = 1; /* ms */
239df2e2	215	break;
b639f9d2 NS	216	case CX88_BOARD_KWORLD_LTV883:
	217	ir_codes = ir_codes_pixelview;
	218	ir->gpio_addr = MO_GP1_IO;
	219	ir->mask_keycode = 0x1f;
	220	ir->mask_keyup = 0x60;
	221	ir->polling = 1; /* ms */
	222	break;
a82decf6	223	case CX88_BOARD_ADSTECH_DVB_T_PCI:
41ef7c1e MCC	224	ir_codes = ir_codes_adstech_dvb_t_pci;
41ef7c1e MCC	225	ir->gpio_addr = MO_GP1_IO;
a82decf6	226	ir->mask_keycode = 0xbf;
41ef7c1e MCC	227	ir->mask_keyup = 0x40;
	228	ir->polling = 50; /* ms */
	229	break;
	230	case CX88_BOARD_MSI_TVANYWHERE_MASTER:
	231	ir_codes = ir_codes_msi_tvanywhere;
	232	ir->gpio_addr = MO_GP1_IO;
	233	ir->mask_keycode = 0x1f;
	234	ir->mask_keyup = 0x40;
	235	ir->polling = 1; /* ms */
a82decf6	236	break;
899ad11b	237	case CX88_BOARD_AVERTV_303:
565f4949	238	case CX88_BOARD_AVERTV_STUDIO_303:
899ad11b GG	239	ir_codes = ir_codes_avertv_303;
	240	ir->gpio_addr = MO_GP2_IO;
	241	ir->mask_keycode = 0xfb;
	242	ir->mask_keydown = 0x02;
	243	ir->polling = 50; /* ms */
	244	break;
fc40b261 CP	245	case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
	246	ir_codes = ir_codes_dntv_live_dvbt_pro;
	247	ir_type = IR_TYPE_PD;
	248	ir->sampling = 0xff00; /* address */
	249	break;
680543c5 RC	250	case CX88_BOARD_NPGTECH_REALTV:
	251	ir_codes = ir_codes_npgtech;
	252	ir->gpio_addr = MO_GP0_IO;
	253	ir->mask_keycode = 0xfa;
	254	ir->polling = 50; /* ms */
	255	break;
1da177e4	256	}
b45009b0	257
1da177e4 LT	258	if (NULL == ir_codes) {
1da177e4 LT	259	kfree(ir);
b7df3910	260	input_free_device(input_dev);
1da177e4 LT	261	return -ENODEV;
	262	}
	263
	264	/* init input device */
	265	snprintf(ir->name, sizeof(ir->name), "cx88 IR (%s)",
	266	cx88_boards[core->board].name);
41ef7c1e	267	snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", pci_name(pci));
1da177e4	268
b7df3910 DT	269	ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
	270	input_dev->name = ir->name;
	271	input_dev->phys = ir->phys;
	272	input_dev->id.bustype = BUS_PCI;
	273	input_dev->id.version = 1;
1da177e4	274	if (pci->subsystem_vendor) {
b7df3910 DT	275	input_dev->id.vendor = pci->subsystem_vendor;
b7df3910 DT	276	input_dev->id.product = pci->subsystem_device;
1da177e4	277	} else {
b7df3910 DT	278	input_dev->id.vendor = pci->vendor;
b7df3910 DT	279	input_dev->id.product = pci->device;
1da177e4	280	}
b7df3910	281	input_dev->cdev.dev = &pci->dev;
1da177e4 LT	282	/* record handles to ourself */
	283	ir->core = core;
	284	core->ir = ir;
	285
	286	if (ir->polling) {
	287	INIT_WORK(&ir->work, cx88_ir_work, ir);
	288	init_timer(&ir->timer);
	289	ir->timer.function = ir_timer;
41ef7c1e	290	ir->timer.data = (unsigned long)ir;
1da177e4 LT	291	schedule_work(&ir->work);
	292	}
	293	if (ir->sampling) {
41ef7c1e MCC	294	core->pci_irqmask \|= (1 << 18); /* IR_SMP_INT */
	295	cx_write(MO_DDS_IO, 0xa80a80); /* 4 kHz sample rate */
	296	cx_write(MO_DDSCFG_IO, 0x5); /* enable */
1da177e4 LT	297	}
	298
	299	/* all done */
b7df3910	300	input_register_device(ir->input);
1da177e4 LT	301
	302	return 0;
	303	}
	304
	305	int cx88_ir_fini(struct cx88_core *core)
	306	{
	307	struct cx88_IR *ir = core->ir;
	308
	309	/* skip detach on non attached boards */
	310	if (NULL == ir)
	311	return 0;
	312
fc40b261 CP	313	if (ir->sampling) {
	314	cx_write(MO_DDSCFG_IO, 0x0);
	315	core->pci_irqmask &= ~(1 << 18);
	316	}
1da177e4 LT	317	if (ir->polling) {
	318	del_timer(&ir->timer);
	319	flush_scheduled_work();
	320	}
	321
b7df3910	322	input_unregister_device(ir->input);
1da177e4 LT	323	kfree(ir);
	324
	325	/* done */
	326	core->ir = NULL;
	327	return 0;
	328	}
	329
	330	/* ---------------------------------------------------------------------- */
	331
	332	void cx88_ir_irq(struct cx88_core *core)
	333	{
	334	struct cx88_IR *ir = core->ir;
e52e98a7	335	u32 samples, ircode;
1da177e4 LT	336	int i;
	337
	338	if (NULL == ir)
	339	return;
	340	if (!ir->sampling)
	341	return;
	342
	343	samples = cx_read(MO_SAMPLE_IO);
41ef7c1e	344	if (0 != samples && 0xffffffff != samples) {
1da177e4 LT	345	/* record sample data */
	346	if (ir->scount < ARRAY_SIZE(ir->samples))
	347	ir->samples[ir->scount++] = samples;
	348	return;
	349	}
	350	if (!ir->scount) {
	351	/* nothing to sample */
41ef7c1e	352	if (ir->ir.keypressed && time_after(jiffies, ir->release))
b7df3910	353	ir_input_nokey(ir->input, &ir->ir);
1da177e4 LT	354	return;
	355	}
	356
	357	/* have a complete sample */
	358	if (ir->scount < ARRAY_SIZE(ir->samples))
	359	ir->samples[ir->scount++] = samples;
	360	for (i = 0; i < ir->scount; i++)
	361	ir->samples[i] = ~ir->samples[i];
	362	if (ir_debug)
41ef7c1e	363	ir_dump_samples(ir->samples, ir->scount);
1da177e4 LT	364
	365	/* decode it */
	366	switch (core->board) {
e52e98a7	367	case CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1:
fc40b261	368	case CX88_BOARD_DNTV_LIVE_DVB_T_PRO:
e52e98a7 MCC	369	ircode = ir_decode_pulsedistance(ir->samples, ir->scount, 1, 4);
	370
	371	if (ircode == 0xffffffff) { /* decoding error */
	372	ir_dprintk("pulse distance decoding error\n");
	373	break;
	374	}
	375
	376	ir_dprintk("pulse distance decoded: %x\n", ircode);
	377
	378	if (ircode == 0) { /* key still pressed */
	379	ir_dprintk("pulse distance decoded repeat code\n");
	380	ir->release = jiffies + msecs_to_jiffies(120);
	381	break;
	382	}
	383
fc40b261	384	if ((ircode & 0xffff) != (ir->sampling & 0xffff)) { /* wrong address */
e52e98a7	385	ir_dprintk("pulse distance decoded wrong address\n");
4ac97914	386	break;
e52e98a7 MCC	387	}
	388
	389	if (((~ircode >> 24) & 0xff) != ((ircode >> 16) & 0xff)) { /* wrong checksum */
	390	ir_dprintk("pulse distance decoded wrong check sum\n");
	391	break;
	392	}
	393
	394	ir_dprintk("Key Code: %x\n", (ircode >> 16) & 0x7f);
	395
b7df3910	396	ir_input_keydown(ir->input, &ir->ir, (ircode >> 16) & 0x7f, (ircode >> 16) & 0xff);
e52e98a7 MCC	397	ir->release = jiffies + msecs_to_jiffies(120);
e52e98a7 MCC	398	break;
1da177e4 LT	399	case CX88_BOARD_HAUPPAUGE:
1da177e4 LT	400	case CX88_BOARD_HAUPPAUGE_DVB_T1:
fb56cb65 ST	401	case CX88_BOARD_HAUPPAUGE_NOVASE2_S1:
fb56cb65 ST	402	case CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1:
30367bfd	403	case CX88_BOARD_HAUPPAUGE_HVR1100:
e52e98a7 MCC	404	ircode = ir_decode_biphase(ir->samples, ir->scount, 5, 7);
	405	ir_dprintk("biphase decoded: %x\n", ircode);
	406	if ((ircode & 0xfffff000) != 0x3000)
1da177e4	407	break;
b7df3910	408	ir_input_keydown(ir->input, &ir->ir, ircode & 0x3f, ircode);
1da177e4 LT	409	ir->release = jiffies + msecs_to_jiffies(120);
	410	break;
	411	}
	412
	413	ir->scount = 0;
	414	return;
	415	}
	416
	417	/* ---------------------------------------------------------------------- */
	418
	419	MODULE_AUTHOR("Gerd Knorr, Pavel Machek, Chris Pascoe");
	420	MODULE_DESCRIPTION("input driver for cx88 GPIO-based IR remote controls");
	421	MODULE_LICENSE("GPL");
1da177e4 LT	422	/*
	423	* Local variables:
	424	* c-basic-offset: 8
	425	* End:
	426	*/