[mirror_ubuntu-jammy-kernel.git] / drivers / media / dvb / ttpci / av7110_ir.c

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

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

#define UP_TIMEOUT (HZ*7/25)

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

static int av_cnt;
static struct av7110 *av_list[4];
static struct input_dev *input_dev;

static u8 delay_timer_finished;

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


static void av7110_emit_keyup(unsigned long data)
{
	if (!data || !test_bit(data, input_dev->key))
		return;

	input_event(input_dev, EV_KEY, data, !!0);
}


static struct timer_list keyup_timer = { .function = av7110_emit_keyup };


static void av7110_emit_key(unsigned long parm)
{
	struct av7110 *av7110 = (struct av7110 *) parm;
	u32 ir_config = av7110->ir_config;
	u32 ircom = av7110->ir_command;
	u8 data;
	u8 addr;
	static u16 old_toggle = 0;
	u16 new_toggle;
	u16 keycode;

	/* extract device address and data */
	switch (ir_config & 0x0003) {
	case 0:	/* RC5: 5 bits device address, 6 bits data */
		data = ircom & 0x3f;
		addr = (ircom >> 6) & 0x1f;
		break;

	case 1:	/* RCMM: 8(?) bits device address, 8(?) bits data */
		data = ircom & 0xff;
		addr = (ircom >> 8) & 0xff;
		break;

	case 2:	/* extended RC5: 5 bits device address, 7 bits data */
		data = ircom & 0x3f;
		addr = (ircom >> 6) & 0x1f;
		/* invert 7th data bit for backward compatibility with RC5 keymaps */
		if (!(ircom & 0x1000))
			data |= 0x40;
		break;

	default:
		printk("invalid ir_config %x\n", ir_config);
		return;
	}

	keycode = key_map[data];

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

	/* check device address (if selected) */
	if (ir_config & 0x4000)
		if (addr != ((ir_config >> 16) & 0xff))
			return;

	if (!keycode) {
		printk ("%s: unknown key 0x%02x!!\n", __FUNCTION__, data);
		return;
	}

	if ((ir_config & 0x0003) == 1)
		new_toggle = 0; /* RCMM */
	else
		new_toggle = (ircom & 0x800); /* RC5, extended RC5 */

	if (timer_pending(&keyup_timer)) {
		del_timer(&keyup_timer);
		if (keyup_timer.data != keycode || new_toggle != old_toggle) {
			delay_timer_finished = 0;
			input_event(input_dev, EV_KEY, keyup_timer.data, !!0);
			input_event(input_dev, EV_KEY, keycode, !0);
		} else
			if (delay_timer_finished)
				input_event(input_dev, EV_KEY, keycode, 2);
	} else {
		delay_timer_finished = 0;
		input_event(input_dev, EV_KEY, keycode, !0);
	}

	keyup_timer.expires = jiffies + UP_TIMEOUT;
	keyup_timer.data = keycode;

	add_timer(&keyup_timer);

	old_toggle = new_toggle;
}

static void input_register_keys(void)
{
	int i;

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

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


static void input_repeat_key(unsigned long data)
{
	/* called by the input driver after rep[REP_DELAY] ms */
	delay_timer_finished = 1;
}


static int av7110_ir_write_proc(struct file *file, const char __user *buffer,
				unsigned long count, void *data)
{
	char *page;
	int size = 4 + 256 * sizeof(u16);
	u32 ir_config;
	int i;

	if (count < size)
		return -EINVAL;

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

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

	memcpy(&ir_config, page, 4);
	memcpy(&key_map, page + 4, 256 * sizeof(u16));
	vfree(page);
	if (FW_VERSION(av_list[0]->arm_app) >= 0x2620 && !(ir_config & 0x0001))
		ir_config |= 0x0002; /* enable extended RC5 */
	for (i = 0; i < av_cnt; i++)
		av7110_setup_irc_config(av_list[i], ir_config);
	input_register_keys();
	return count;
}


int av7110_setup_irc_config(struct av7110 *av7110, u32 ir_config)
{
	int ret = 0;

	dprintk(4, "%p\n", av7110);
	if (av7110) {
		ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetIR, 1, ir_config);
		av7110->ir_config = ir_config;
	}
	return ret;
}


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


int __init av7110_ir_init(struct av7110 *av7110)
{
	static struct proc_dir_entry *e;

	if (av_cnt >= sizeof av_list/sizeof av_list[0])
		return -ENOSPC;

	av7110_setup_irc_config(av7110, 0x0001);
	av_list[av_cnt++] = av7110;

	if (av_cnt == 1) {
		init_timer(&keyup_timer);
		keyup_timer.data = 0;

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

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

		set_bit(EV_KEY, input_dev->evbit);
		set_bit(EV_REP, input_dev->evbit);
		input_register_keys();
		input_register_device(input_dev);
		input_dev->timer.function = input_repeat_key;

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

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

	return 0;
}


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

	if (av_cnt == 0)
		return;

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

	if (av_cnt == 1) {
		del_timer_sync(&keyup_timer);
		remove_proc_entry("av7110_ir", NULL);
		input_unregister_device(input_dev);
	}

	av_cnt--;
}

//MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>");
//MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4 LT	1	#include <linux/types.h>
	2	#include <linux/init.h>
	3	#include <linux/module.h>
	4	#include <linux/moduleparam.h>
	5	#include <linux/input.h>
	6	#include <linux/proc_fs.h>
	7	#include <asm/bitops.h>
	8
	9	#include "av7110.h"
03388ae3	10	#include "av7110_hw.h"
1da177e4	11
03388ae3	12	#define UP_TIMEOUT (HZ*7/25)
1da177e4	13
3dbce49e	14	/* enable ir debugging by or'ing debug with 16 */
1da177e4	15
03388ae3 OE	16	static int av_cnt;
03388ae3 OE	17	static struct av7110 *av_list[4];
b7df3910	18	static struct input_dev *input_dev;
1da177e4	19
26a0f5db NI	20	static u8 delay_timer_finished;
26a0f5db NI	21
1da177e4 LT	22	static u16 key_map [256] = {
	23	KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7,
	24	KEY_8, KEY_9, KEY_BACK, 0, KEY_POWER, KEY_MUTE, 0, KEY_INFO,
	25	KEY_VOLUMEUP, KEY_VOLUMEDOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	26	KEY_CHANNELUP, KEY_CHANNELDOWN, 0, 0, 0, 0, 0, 0,
	27	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	28	0, 0, 0, 0, KEY_TEXT, 0, 0, KEY_TV, 0, 0, 0, 0, 0, KEY_SETUP, 0, 0,
	29	0, 0, 0, KEY_SUBTITLE, 0, 0, KEY_LANGUAGE, 0,
	30	KEY_RADIO, 0, 0, 0, 0, KEY_EXIT, 0, 0,
	31	KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_OK, 0, 0, 0,
	32	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RED, KEY_GREEN, KEY_YELLOW,
	33	KEY_BLUE, 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_LIST, 0, 0, 0, 0, 0, 0,
	34	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	35	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	36	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	37	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	38	0, 0, 0, 0, KEY_UP, KEY_UP, KEY_DOWN, KEY_DOWN,
	39	0, 0, 0, 0, KEY_EPG, 0, 0, 0,
	40	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	41	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	42	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_VCR
	43	};
	44
	45
	46	static void av7110_emit_keyup(unsigned long data)
	47	{
b7df3910	48	if (!data \|\| !test_bit(data, input_dev->key))
1da177e4 LT	49	return;
1da177e4 LT	50
b7df3910	51	input_event(input_dev, EV_KEY, data, !!0);
1da177e4 LT	52	}
	53
	54
	55	static struct timer_list keyup_timer = { .function = av7110_emit_keyup };
	56
	57
03388ae3	58	static void av7110_emit_key(unsigned long parm)
1da177e4	59	{
03388ae3 OE	60	struct av7110 av7110 = (struct av7110 ) parm;
	61	u32 ir_config = av7110->ir_config;
	62	u32 ircom = av7110->ir_command;
1da177e4 LT	63	u8 data;
	64	u8 addr;
	65	static u16 old_toggle = 0;
	66	u16 new_toggle;
	67	u16 keycode;
	68
	69	/* extract device address and data */
03388ae3 OE	70	switch (ir_config & 0x0003) {
	71	case 0: /* RC5: 5 bits device address, 6 bits data */
	72	data = ircom & 0x3f;
	73	addr = (ircom >> 6) & 0x1f;
	74	break;
	75
	76	case 1: /* RCMM: 8(?) bits device address, 8(?) bits data */
1da177e4 LT	77	data = ircom & 0xff;
1da177e4 LT	78	addr = (ircom >> 8) & 0xff;
03388ae3 OE	79	break;
	80
	81	case 2: /* extended RC5: 5 bits device address, 7 bits data */
1da177e4 LT	82	data = ircom & 0x3f;
1da177e4 LT	83	addr = (ircom >> 6) & 0x1f;
03388ae3 OE	84	/* invert 7th data bit for backward compatibility with RC5 keymaps */
	85	if (!(ircom & 0x1000))
	86	data \|= 0x40;
	87	break;
	88
	89	default:
	90	printk("invalid ir_config %x\n", ir_config);
	91	return;
1da177e4 LT	92	}
	93
	94	keycode = key_map[data];
	95
03388ae3	96	dprintk(16, "code %08x -> addr %i data 0x%02x -> keycode %i\n",
1da177e4 LT	97	ircom, addr, data, keycode);
	98
	99	/* check device address (if selected) */
	100	if (ir_config & 0x4000)
	101	if (addr != ((ir_config >> 16) & 0xff))
	102	return;
	103
	104	if (!keycode) {
	105	printk ("%s: unknown key 0x%02x!!\n", __FUNCTION__, data);
	106	return;
	107	}
	108
03388ae3	109	if ((ir_config & 0x0003) == 1)
1da177e4 LT	110	new_toggle = 0; /* RCMM */
1da177e4 LT	111	else
03388ae3	112	new_toggle = (ircom & 0x800); /* RC5, extended RC5 */
1da177e4 LT	113
	114	if (timer_pending(&keyup_timer)) {
	115	del_timer(&keyup_timer);
	116	if (keyup_timer.data != keycode \|\| new_toggle != old_toggle) {
26a0f5db	117	delay_timer_finished = 0;
b7df3910 DT	118	input_event(input_dev, EV_KEY, keyup_timer.data, !!0);
b7df3910 DT	119	input_event(input_dev, EV_KEY, keycode, !0);
1da177e4	120	} else
26a0f5db NI	121	if (delay_timer_finished)
	122	input_event(input_dev, EV_KEY, keycode, 2);
	123	} else {
	124	delay_timer_finished = 0;
b7df3910	125	input_event(input_dev, EV_KEY, keycode, !0);
26a0f5db	126	}
1da177e4 LT	127
	128	keyup_timer.expires = jiffies + UP_TIMEOUT;
	129	keyup_timer.data = keycode;
	130
	131	add_timer(&keyup_timer);
	132
	133	old_toggle = new_toggle;
	134	}
	135
	136	static void input_register_keys(void)
	137	{
	138	int i;
	139
b7df3910	140	memset(input_dev->keybit, 0, sizeof(input_dev->keybit));
1da177e4	141
b7df3910	142	for (i = 0; i < ARRAY_SIZE(key_map); i++) {
1da177e4 LT	143	if (key_map[i] > KEY_MAX)
	144	key_map[i] = 0;
	145	else if (key_map[i] > KEY_RESERVED)
b7df3910	146	set_bit(key_map[i], input_dev->keybit);
1da177e4 LT	147	}
	148	}
	149
	150
	151	static void input_repeat_key(unsigned long data)
	152	{
26a0f5db NI	153	/* called by the input driver after rep[REP_DELAY] ms */
26a0f5db NI	154	delay_timer_finished = 1;
1da177e4 LT	155	}
	156
	157
	158	static int av7110_ir_write_proc(struct file file, const char __user buffer,
	159	unsigned long count, void *data)
	160	{
	161	char *page;
	162	int size = 4 + 256 * sizeof(u16);
03388ae3 OE	163	u32 ir_config;
03388ae3 OE	164	int i;
1da177e4 LT	165
	166	if (count < size)
	167	return -EINVAL;
	168
	169	page = (char *) vmalloc(size);
	170	if (!page)
	171	return -ENOMEM;
	172
	173	if (copy_from_user(page, buffer, size)) {
	174	vfree(page);
	175	return -EFAULT;
	176	}
	177
	178	memcpy(&ir_config, page, 4);
	179	memcpy(&key_map, page + 4, 256 * sizeof(u16));
	180	vfree(page);
03388ae3 OE	181	if (FW_VERSION(av_list[0]->arm_app) >= 0x2620 && !(ir_config & 0x0001))
	182	ir_config \|= 0x0002; /* enable extended RC5 */
	183	for (i = 0; i < av_cnt; i++)
	184	av7110_setup_irc_config(av_list[i], ir_config);
1da177e4 LT	185	input_register_keys();
	186	return count;
	187	}
	188
	189
03388ae3	190	int av7110_setup_irc_config(struct av7110 *av7110, u32 ir_config)
1da177e4	191	{
03388ae3	192	int ret = 0;
1da177e4	193
03388ae3 OE	194	dprintk(4, "%p\n", av7110);
	195	if (av7110) {
	196	ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetIR, 1, ir_config);
	197	av7110->ir_config = ir_config;
	198	}
	199	return ret;
	200	}
1da177e4	201
1da177e4	202
03388ae3 OE	203	static void ir_handler(struct av7110 *av7110, u32 ircom)
	204	{
	205	dprintk(4, "ircommand = %08x\n", ircom);
	206	av7110->ir_command = ircom;
	207	tasklet_schedule(&av7110->ir_tasklet);
	208	}
1da177e4	209
1da177e4	210
03388ae3 OE	211	int __init av7110_ir_init(struct av7110 *av7110)
	212	{
	213	static struct proc_dir_entry *e;
1da177e4	214
03388ae3 OE	215	if (av_cnt >= sizeof av_list/sizeof av_list[0])
03388ae3 OE	216	return -ENOSPC;
1da177e4	217
03388ae3 OE	218	av7110_setup_irc_config(av7110, 0x0001);
03388ae3 OE	219	av_list[av_cnt++] = av7110;
1da177e4	220
03388ae3 OE	221	if (av_cnt == 1) {
	222	init_timer(&keyup_timer);
	223	keyup_timer.data = 0;
	224
b7df3910 DT	225	input_dev = input_allocate_device();
	226	if (!input_dev)
	227	return -ENOMEM;
	228
	229	input_dev->name = "DVB on-card IR receiver";
	230
	231	set_bit(EV_KEY, input_dev->evbit);
	232	set_bit(EV_REP, input_dev->evbit);
03388ae3	233	input_register_keys();
b7df3910 DT	234	input_register_device(input_dev);
b7df3910 DT	235	input_dev->timer.function = input_repeat_key;
03388ae3 OE	236
	237	e = create_proc_entry("av7110_ir", S_IFREG \| S_IRUGO \| S_IWUSR, NULL);
	238	if (e) {
	239	e->write_proc = av7110_ir_write_proc;
	240	e->size = 4 + 256 * sizeof(u16);
	241	}
1da177e4 LT	242	}
1da177e4 LT	243
03388ae3 OE	244	tasklet_init(&av7110->ir_tasklet, av7110_emit_key, (unsigned long) av7110);
	245	av7110->ir_handler = ir_handler;
	246
1da177e4 LT	247	return 0;
	248	}
	249
	250
03388ae3	251	void __exit av7110_ir_exit(struct av7110 *av7110)
1da177e4	252	{
03388ae3 OE	253	int i;
	254
	255	if (av_cnt == 0)
1da177e4	256	return;
03388ae3 OE	257
	258	av7110->ir_handler = NULL;
	259	tasklet_kill(&av7110->ir_tasklet);
	260	for (i = 0; i < av_cnt; i++)
	261	if (av_list[i] == av7110) {
	262	av_list[i] = av_list[av_cnt-1];
	263	av_list[av_cnt-1] = NULL;
	264	break;
	265	}
	266
	267	if (av_cnt == 1) {
	268	del_timer_sync(&keyup_timer);
	269	remove_proc_entry("av7110_ir", NULL);
b7df3910	270	input_unregister_device(input_dev);
03388ae3 OE	271	}
	272
	273	av_cnt--;
1da177e4 LT	274	}
	275
	276	//MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>");
	277	//MODULE_LICENSE("GPL");