[GitHub/mt8127/android_kernel_alcatel_ttab.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 char input_phys[32];

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_report_key(input_dev, data, 0);
	input_sync(input_dev);
}


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, 1);
			input_sync(input_dev);
		} else if (delay_timer_finished) {
			input_event(input_dev, EV_KEY, keycode, 2);
			input_sync(input_dev);
		}
	} else {
		delay_timer_finished = 0;
		input_event(input_dev, EV_KEY, keycode, 1);
		input_sync(input_dev);
	}

	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_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 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;
}


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

	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;

		snprintf(input_phys, sizeof(input_phys),
			"pci-%s/ir0", pci_name(av7110->dev->pci));

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

		input_dev->phys = input_phys;
		input_dev->id.bustype = BUS_PCI;
		input_dev->id.version = 1;
		if (av7110->dev->pci->subsystem_vendor) {
			input_dev->id.vendor = av7110->dev->pci->subsystem_vendor;
			input_dev->id.product = av7110->dev->pci->subsystem_device;
		} else {
			input_dev->id.vendor = av7110->dev->pci->vendor;
			input_dev->id.product = av7110->dev->pci->device;
		}
		input_dev->cdev.dev = &av7110->dev->pci->dev;
		set_bit(EV_KEY, input_dev->evbit);
		set_bit(EV_REP, input_dev->evbit);
		input_register_keys();
		err = input_register_device(input_dev);
		if (err) {
			input_free_device(input_dev);
			return err;
		}
		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 __devexit 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;
357a268d	19	static char input_phys[32];
1da177e4	20
26a0f5db NI	21	static u8 delay_timer_finished;
26a0f5db NI	22
1da177e4 LT	23	static u16 key_map [256] = {
	24	KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7,
	25	KEY_8, KEY_9, KEY_BACK, 0, KEY_POWER, KEY_MUTE, 0, KEY_INFO,
	26	KEY_VOLUMEUP, KEY_VOLUMEDOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	27	KEY_CHANNELUP, KEY_CHANNELDOWN, 0, 0, 0, 0, 0, 0,
	28	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	29	0, 0, 0, 0, KEY_TEXT, 0, 0, KEY_TV, 0, 0, 0, 0, 0, KEY_SETUP, 0, 0,
	30	0, 0, 0, KEY_SUBTITLE, 0, 0, KEY_LANGUAGE, 0,
	31	KEY_RADIO, 0, 0, 0, 0, KEY_EXIT, 0, 0,
	32	KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_OK, 0, 0, 0,
	33	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RED, KEY_GREEN, KEY_YELLOW,
	34	KEY_BLUE, 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_LIST, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	39	0, 0, 0, 0, KEY_UP, KEY_UP, KEY_DOWN, KEY_DOWN,
	40	0, 0, 0, 0, KEY_EPG, 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, 0,
	43	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_VCR
	44	};
	45
	46
	47	static void av7110_emit_keyup(unsigned long data)
	48	{
b7df3910	49	if (!data \|\| !test_bit(data, input_dev->key))
1da177e4 LT	50	return;
1da177e4 LT	51
b07b4783 DT	52	input_report_key(input_dev, data, 0);
b07b4783 DT	53	input_sync(input_dev);
1da177e4 LT	54	}
	55
	56
	57	static struct timer_list keyup_timer = { .function = av7110_emit_keyup };
	58
	59
03388ae3	60	static void av7110_emit_key(unsigned long parm)
1da177e4	61	{
03388ae3 OE	62	struct av7110 av7110 = (struct av7110 ) parm;
	63	u32 ir_config = av7110->ir_config;
	64	u32 ircom = av7110->ir_command;
1da177e4 LT	65	u8 data;
	66	u8 addr;
	67	static u16 old_toggle = 0;
	68	u16 new_toggle;
	69	u16 keycode;
	70
	71	/* extract device address and data */
03388ae3 OE	72	switch (ir_config & 0x0003) {
	73	case 0: /* RC5: 5 bits device address, 6 bits data */
	74	data = ircom & 0x3f;
	75	addr = (ircom >> 6) & 0x1f;
	76	break;
	77
	78	case 1: /* RCMM: 8(?) bits device address, 8(?) bits data */
1da177e4 LT	79	data = ircom & 0xff;
1da177e4 LT	80	addr = (ircom >> 8) & 0xff;
03388ae3 OE	81	break;
	82
	83	case 2: /* extended RC5: 5 bits device address, 7 bits data */
1da177e4 LT	84	data = ircom & 0x3f;
1da177e4 LT	85	addr = (ircom >> 6) & 0x1f;
03388ae3 OE	86	/* invert 7th data bit for backward compatibility with RC5 keymaps */
	87	if (!(ircom & 0x1000))
	88	data \|= 0x40;
	89	break;
	90
	91	default:
	92	printk("invalid ir_config %x\n", ir_config);
	93	return;
1da177e4 LT	94	}
	95
	96	keycode = key_map[data];
	97
03388ae3	98	dprintk(16, "code %08x -> addr %i data 0x%02x -> keycode %i\n",
1da177e4 LT	99	ircom, addr, data, keycode);
	100
	101	/* check device address (if selected) */
	102	if (ir_config & 0x4000)
	103	if (addr != ((ir_config >> 16) & 0xff))
	104	return;
	105
	106	if (!keycode) {
	107	printk ("%s: unknown key 0x%02x!!\n", __FUNCTION__, data);
	108	return;
	109	}
	110
03388ae3	111	if ((ir_config & 0x0003) == 1)
1da177e4 LT	112	new_toggle = 0; /* RCMM */
1da177e4 LT	113	else
03388ae3	114	new_toggle = (ircom & 0x800); /* RC5, extended RC5 */
1da177e4 LT	115
	116	if (timer_pending(&keyup_timer)) {
	117	del_timer(&keyup_timer);
	118	if (keyup_timer.data != keycode \|\| new_toggle != old_toggle) {
26a0f5db	119	delay_timer_finished = 0;
b07b4783 DT	120	input_event(input_dev, EV_KEY, keyup_timer.data, 0);
	121	input_event(input_dev, EV_KEY, keycode, 1);
	122	input_sync(input_dev);
	123	} else if (delay_timer_finished) {
	124	input_event(input_dev, EV_KEY, keycode, 2);
	125	input_sync(input_dev);
	126	}
26a0f5db NI	127	} else {
26a0f5db NI	128	delay_timer_finished = 0;
b07b4783 DT	129	input_event(input_dev, EV_KEY, keycode, 1);
b07b4783 DT	130	input_sync(input_dev);
26a0f5db	131	}
1da177e4 LT	132
	133	keyup_timer.expires = jiffies + UP_TIMEOUT;
	134	keyup_timer.data = keycode;
	135
	136	add_timer(&keyup_timer);
	137
	138	old_toggle = new_toggle;
	139	}
	140
	141	static void input_register_keys(void)
	142	{
	143	int i;
	144
b7df3910	145	memset(input_dev->keybit, 0, sizeof(input_dev->keybit));
1da177e4	146
b7df3910	147	for (i = 0; i < ARRAY_SIZE(key_map); i++) {
1da177e4 LT	148	if (key_map[i] > KEY_MAX)
	149	key_map[i] = 0;
	150	else if (key_map[i] > KEY_RESERVED)
b7df3910	151	set_bit(key_map[i], input_dev->keybit);
1da177e4 LT	152	}
	153	}
	154
	155
	156	static void input_repeat_key(unsigned long data)
	157	{
26a0f5db NI	158	/* called by the input driver after rep[REP_DELAY] ms */
26a0f5db NI	159	delay_timer_finished = 1;
1da177e4 LT	160	}
	161
	162
a22a6865 AB	163	static int av7110_setup_irc_config(struct av7110 *av7110, u32 ir_config)
	164	{
	165	int ret = 0;
	166
	167	dprintk(4, "%p\n", av7110);
	168	if (av7110) {
	169	ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetIR, 1, ir_config);
	170	av7110->ir_config = ir_config;
	171	}
	172	return ret;
	173	}
	174
	175
1da177e4 LT	176	static int av7110_ir_write_proc(struct file file, const char __user buffer,
	177	unsigned long count, void *data)
	178	{
	179	char *page;
	180	int size = 4 + 256 * sizeof(u16);
03388ae3 OE	181	u32 ir_config;
03388ae3 OE	182	int i;
1da177e4 LT	183
	184	if (count < size)
	185	return -EINVAL;
	186
	187	page = (char *) vmalloc(size);
	188	if (!page)
	189	return -ENOMEM;
	190
	191	if (copy_from_user(page, buffer, size)) {
	192	vfree(page);
	193	return -EFAULT;
	194	}
	195
	196	memcpy(&ir_config, page, 4);
	197	memcpy(&key_map, page + 4, 256 * sizeof(u16));
	198	vfree(page);
03388ae3 OE	199	if (FW_VERSION(av_list[0]->arm_app) >= 0x2620 && !(ir_config & 0x0001))
	200	ir_config \|= 0x0002; /* enable extended RC5 */
	201	for (i = 0; i < av_cnt; i++)
	202	av7110_setup_irc_config(av_list[i], ir_config);
1da177e4 LT	203	input_register_keys();
	204	return count;
	205	}
	206
	207
03388ae3 OE	208	static void ir_handler(struct av7110 *av7110, u32 ircom)
	209	{
	210	dprintk(4, "ircommand = %08x\n", ircom);
	211	av7110->ir_command = ircom;
	212	tasklet_schedule(&av7110->ir_tasklet);
	213	}
1da177e4	214
1da177e4	215
11dc3ffa	216	int __devinit av7110_ir_init(struct av7110 *av7110)
03388ae3 OE	217	{
03388ae3 OE	218	static struct proc_dir_entry *e;
b07b4783	219	int err;
1da177e4	220
03388ae3 OE	221	if (av_cnt >= sizeof av_list/sizeof av_list[0])
03388ae3 OE	222	return -ENOSPC;
1da177e4	223
03388ae3 OE	224	av7110_setup_irc_config(av7110, 0x0001);
03388ae3 OE	225	av_list[av_cnt++] = av7110;
1da177e4	226
03388ae3 OE	227	if (av_cnt == 1) {
	228	init_timer(&keyup_timer);
	229	keyup_timer.data = 0;
	230
b7df3910 DT	231	input_dev = input_allocate_device();
	232	if (!input_dev)
	233	return -ENOMEM;
	234
357a268d MS	235	snprintf(input_phys, sizeof(input_phys),
	236	"pci-%s/ir0", pci_name(av7110->dev->pci));
	237
b7df3910 DT	238	input_dev->name = "DVB on-card IR receiver";
b7df3910 DT	239
357a268d MS	240	input_dev->phys = input_phys;
	241	input_dev->id.bustype = BUS_PCI;
	242	input_dev->id.version = 1;
	243	if (av7110->dev->pci->subsystem_vendor) {
	244	input_dev->id.vendor = av7110->dev->pci->subsystem_vendor;
	245	input_dev->id.product = av7110->dev->pci->subsystem_device;
	246	} else {
	247	input_dev->id.vendor = av7110->dev->pci->vendor;
	248	input_dev->id.product = av7110->dev->pci->device;
	249	}
	250	input_dev->cdev.dev = &av7110->dev->pci->dev;
b7df3910 DT	251	set_bit(EV_KEY, input_dev->evbit);
b7df3910 DT	252	set_bit(EV_REP, input_dev->evbit);
03388ae3	253	input_register_keys();
b07b4783 DT	254	err = input_register_device(input_dev);
	255	if (err) {
	256	input_free_device(input_dev);
	257	return err;
	258	}
b7df3910	259	input_dev->timer.function = input_repeat_key;
03388ae3 OE	260
	261	e = create_proc_entry("av7110_ir", S_IFREG \| S_IRUGO \| S_IWUSR, NULL);
	262	if (e) {
	263	e->write_proc = av7110_ir_write_proc;
	264	e->size = 4 + 256 * sizeof(u16);
	265	}
1da177e4 LT	266	}
1da177e4 LT	267
03388ae3 OE	268	tasklet_init(&av7110->ir_tasklet, av7110_emit_key, (unsigned long) av7110);
	269	av7110->ir_handler = ir_handler;
	270
1da177e4 LT	271	return 0;
	272	}
	273
	274
11dc3ffa	275	void __devexit av7110_ir_exit(struct av7110 *av7110)
1da177e4	276	{
03388ae3 OE	277	int i;
	278
	279	if (av_cnt == 0)
1da177e4	280	return;
03388ae3 OE	281
	282	av7110->ir_handler = NULL;
	283	tasklet_kill(&av7110->ir_tasklet);
	284	for (i = 0; i < av_cnt; i++)
	285	if (av_list[i] == av7110) {
	286	av_list[i] = av_list[av_cnt-1];
	287	av_list[av_cnt-1] = NULL;
	288	break;
	289	}
	290
	291	if (av_cnt == 1) {
	292	del_timer_sync(&keyup_timer);
	293	remove_proc_entry("av7110_ir", NULL);
b7df3910	294	input_unregister_device(input_dev);
03388ae3 OE	295	}
	296
	297	av_cnt--;
1da177e4 LT	298	}
	299
	300	//MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>");
	301	//MODULE_LICENSE("GPL");