WebSVN - shark - Blame - Rev 518 - /shark/trunk/drivers/input/keyboard/atkbd.c

Rev	Author	Line No.	Line
495	giacomo	1	/*
		2	* AT and PS/2 keyboard driver
		3	*
		4	* Copyright (c) 1999-2002 Vojtech Pavlik
		5	*/
		6
		7	/*
		8	* This program is free software; you can redistribute it and/or modify it
		9	* under the terms of the GNU General Public License version 2 as published by
		10	* the Free Software Foundation.
		11	*/
		12
		13	/*
		14	* This driver can handle standard AT keyboards and PS/2 keyboards in
		15	* Translated and Raw Set 2 and Set 3, as well as AT keyboards on dumb
		16	* input-only controllers and AT keyboards connected over a one way RS232
		17	* converter.
		18	*/
		19
		20	#include <linuxcomp.h>
		21
		22	#include <linux/delay.h>
		23	#include <linux/module.h>
		24	#include <linux/slab.h>
		25	#include <linux/interrupt.h>
		26	#include <linux/init.h>
		27	#include <linux/input.h>
		28	#include <linux/serio.h>
		29	#include <linux/workqueue.h>
		30	#include <linux/timer.h>
		31
		32	//#define ATKBD_DEBUG
		33
		34	MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
		35	MODULE_DESCRIPTION("AT and PS/2 keyboard driver");
		36	MODULE_PARM(atkbd_set, "1i");
		37	MODULE_PARM(atkbd_reset, "1i");
		38	MODULE_PARM(atkbd_softrepeat, "1i");
		39	MODULE_LICENSE("GPL");
		40
		41	static int atkbd_set = 2;
		42	#if defined(__i386__) \|\| defined (__x86_64__)
		43	static int atkbd_reset;
		44	#else
		45	static int atkbd_reset = 1;
		46	#endif
		47	static int atkbd_softrepeat;
		48
		49	/*
		50	* Scancode to keycode tables. These are just the default setting, and
		51	* are loadable via an userland utility.
		52	*/
		53
		54	static unsigned char atkbd_set2_keycode[512] = {
		55	0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41, 85,
		56	0, 56, 42,182, 29, 16, 2, 89, 0, 0, 44, 31, 30, 17, 3, 90,
		57	0, 46, 45, 32, 18, 5, 4, 91, 90, 57, 47, 33, 20, 19, 6, 0,
		58	91, 49, 48, 35, 34, 21, 7, 0, 0, 0, 50, 36, 22, 8, 9, 0,
		59	0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0,
		60	122, 89, 40,120, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 0,
		61	85, 86, 90, 91, 92, 93, 14, 94, 95, 79,183, 75, 71,121, 0,123,
		62	82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99,
		63	0, 0, 0, 65, 99, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		64	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		65	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		66	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		67	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		68	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		69	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		70	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,255,
		71	0, 0, 92, 90, 85, 0,137, 0, 0, 0, 0, 91, 89,144,115, 0,
		72	217,100,255, 0, 97,165,164, 0,156, 0, 0,140,115, 0, 0,125,
		73	173,114, 0,113,152,163,151,126,128,166, 0,140, 0,147, 0,127,
		74	159,167,115,160,164, 0, 0,116,158, 0,150,166, 0, 0, 0,142,
		75	157, 0,114,166,168, 0, 0,213,155, 0, 98,113, 0,163, 0,138,
		76	226, 0, 0, 0, 0, 0,153,140, 0,255, 96, 0, 0, 0,143, 0,
		77	133, 0,116, 0,143, 0,174,133, 0,107, 0,105,102, 0, 0,112,
		78	110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119
		79	};
		80
		81	static unsigned char atkbd_set3_keycode[512] = {
		82	0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60,
		83	131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62,
		84	134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64,
		85	136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66,
		86	125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68,
		87	113,114, 40, 84, 26, 13, 87, 99, 97, 54, 28, 27, 43, 84, 88, 70,
		88	108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104,
		89	82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55, 85,
		90	89, 90, 91, 92, 74,185,184,182, 0, 0, 0,125,126,127,112, 0,
		91	0,139,150,163,165,115,152,150,166,140,160,154,113,114,167,168,
		92	148,149,147,140, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		93	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		94	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		95	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		96	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		97	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,255
		98	};
		99
		100	static unsigned char atkbd_unxlate_table[128] = {
		101	0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
		102	21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
		103	35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
		104	50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3,
		105	11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105,
		106	114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63,
		107	71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
		108	19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
		109	};
		110
		111	#define ATKBD_CMD_SETLEDS 0x10ed
		112	#define ATKBD_CMD_GSCANSET 0x11f0
		113	#define ATKBD_CMD_SSCANSET 0x10f0
		114	#define ATKBD_CMD_GETID 0x02f2
		115	#define ATKBD_CMD_SETREP 0x10f3
		116	#define ATKBD_CMD_ENABLE 0x00f4
		117	#define ATKBD_CMD_RESET_DIS 0x00f5
		118	#define ATKBD_CMD_SETALL_MBR 0x00fa
		119	#define ATKBD_CMD_RESET_BAT 0x02ff
		120	#define ATKBD_CMD_RESEND 0x00fe
		121	#define ATKBD_CMD_EX_ENABLE 0x10ea
		122	#define ATKBD_CMD_EX_SETLEDS 0x20eb
		123	#define ATKBD_CMD_OK_GETID 0x02e8
		124
		125	#define ATKBD_RET_ACK 0xfa
		126	#define ATKBD_RET_NAK 0xfe
		127	#define ATKBD_RET_BAT 0xaa
		128	#define ATKBD_RET_EMUL0 0xe0
		129	#define ATKBD_RET_EMULX 0x80
		130	#define ATKBD_RET_EMUL1 0xe1
		131	#define ATKBD_RET_RELEASE 0xf0
		132
		133	#define ATKBD_KEY_UNKNOWN 0
		134	#define ATKBD_KEY_NULL 255
		135
		136	/*
		137	* The atkbd control structure
		138	*/
		139
		140	struct atkbd {
		141	unsigned char keycode[512];
		142	struct input_dev dev;
		143	struct serio *serio;
		144	struct timer_list timer;
		145	char name[64];
		146	char phys[32];
		147	unsigned char cmdbuf[4];
		148	unsigned char cmdcnt;
		149	unsigned char set;
		150	unsigned char release;
		151	int lastkey;
		152	volatile signed char ack;
		153	unsigned char emul;
		154	unsigned short id;
		155	unsigned char write;
		156	unsigned char translated;
		157	unsigned char resend;
		158	unsigned char bat_xl;
		159	unsigned int last;
		160	unsigned long time;
		161	};
		162
		163	/*
		164	* atkbd_interrupt(). Here takes place processing of data received from
		165	* the keyboard into events.
		166	*/
		167
		168	static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
		169	unsigned int flags, struct pt_regs *regs)
		170	{
		171	struct atkbd *atkbd = serio->private;
		172	unsigned int code = data;
		173	int value;
		174
		175	#ifdef ATKBD_DEBUG
		176	printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags);
		177	#endif
		178
		179	#if !defined(__i386__) && !defined (__x86_64__)
		180	if ((flags & (SERIO_FRAME \| SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) {
		181	printk("atkbd.c: frame/parity error: %02x\n", flags);
		182	serio_write(serio, ATKBD_CMD_RESEND);
		183	atkbd->resend = 1;
		184	goto out;
		185	}
		186
		187	if (!flags && data == ATKBD_RET_ACK)
		188	atkbd->resend = 0;
		189	#endif
		190
		191	switch (code) {
		192	case ATKBD_RET_ACK:
		193	atkbd->ack = 1;
		194	goto out;
		195	case ATKBD_RET_NAK:
		196	atkbd->ack = -1;
		197	goto out;
		198	}
		199
		200	if (atkbd->translated) do {
		201
		202	if (atkbd->emul != 1) {
		203	if (code == ATKBD_RET_EMUL0 \|\| code == ATKBD_RET_EMUL1)
		204	break;
		205	if (code == ATKBD_RET_BAT) {
		206	if (!atkbd->bat_xl)
		207	break;
		208	atkbd->bat_xl = 0;
		209	}
		210	if (code == (ATKBD_RET_BAT & 0x7f))
		211	atkbd->bat_xl = 1;
		212	}
		213
		214	if (code < 0x80) {
		215	code = atkbd_unxlate_table[code];
		216	break;
		217	}
		218
		219	if (atkbd->cmdcnt)
		220	break;
		221
		222	code = atkbd_unxlate_table[code & 0x7f];
		223	atkbd->release = 1;
		224
		225	} while (0);
		226
		227	if (atkbd->cmdcnt) {
		228	atkbd->cmdbuf[--atkbd->cmdcnt] = code;
		229	goto out;
		230	}
		231
		232	switch (code) {
		233	case ATKBD_RET_BAT:
		234	serio_rescan(atkbd->serio);
		235	goto out;
		236	case ATKBD_RET_EMUL0:
		237	atkbd->emul = 1;
		238	goto out;
		239	case ATKBD_RET_EMUL1:
		240	atkbd->emul = 2;
		241	goto out;
		242	case ATKBD_RET_RELEASE:
		243	atkbd->release = 1;
		244	goto out;
		245	}
		246
		247	if (atkbd->emul) {
		248	if (--atkbd->emul)
		249	goto out;
		250	code \|= 0x100;
		251	}
		252
		253	switch (atkbd->keycode[code]) {
		254	case ATKBD_KEY_NULL:
		255	break;
		256	case ATKBD_KEY_UNKNOWN:
		257	printk(KERN_WARNING "atkbd.c: Unknown key %s (%s set %d, code %#x, data %#x, on %s).\n",
		258	atkbd->release ? "released" : "pressed",
		259	atkbd->translated ? "translated" : "raw",
		260	atkbd->set, code, data, serio->phys);
		261	break;
		262	default:
		263	value = atkbd->release ? 0 :
		264	(1 + (!atkbd_softrepeat && test_bit(atkbd->keycode[code], atkbd->dev.key)));
		265
		266	switch (value) { /* Workaround Toshiba laptop multiple keypress */
		267	case 0:
		268	atkbd->last = 0;
		269	break;
		270	case 1:
		271	atkbd->last = code;
		272	atkbd->time = jiffies26 + (atkbd->dev.rep[REP_DELAY] * HZ + 500) / 1000 / 2;
		273	break;
		274	case 2:
		275	if (!time_after(jiffies26, atkbd->time) && atkbd->last == code)
		276	value = 1;
		277	break;
		278	}
		279
		280	input_regs(&atkbd->dev, regs);
		281	input_event(&atkbd->dev, EV_KEY, atkbd->keycode[code], value);
		282	input_sync(&atkbd->dev);
		283	}
		284
		285	atkbd->release = 0;
		286	out:
		287	return IRQ_HANDLED;
		288	}
		289
		290	/*
		291	* atkbd_sendbyte() sends a byte to the keyboard, and waits for
		292	* acknowledge. It doesn't handle resends according to the keyboard
		293	* protocol specs, because if these are needed, the keyboard needs
		294	* replacement anyway, and they only make a mess in the protocol.
		295	*/
		296
		297	static int atkbd_sendbyte(struct atkbd *atkbd, unsigned char byte)
		298	{
		299	int timeout = 20000; /* 200 msec */
		300	atkbd->ack = 0;
		301
		302	#ifdef ATKBD_DEBUG
		303	printk(KERN_DEBUG "atkbd.c: Sent: %02x\n", byte);
		304	#endif
		305	if (serio_write(atkbd->serio, byte))
		306	return -1;
		307
		308	while (!atkbd->ack && timeout--) udelay(10);
		309
		310	return -(atkbd->ack <= 0);
		311	}
		312
		313	/*
		314	* atkbd_command() sends a command, and its parameters to the keyboard,
		315	* then waits for the response and puts it in the param array.
		316	*/
		317
		318	static int atkbd_command(struct atkbd atkbd, unsigned char param, int command)
		319	{
		320	int timeout = 500000; /* 500 msec */
		321	int send = (command >> 12) & 0xf;
		322	int receive = (command >> 8) & 0xf;
		323	int i;
		324
		325	atkbd->cmdcnt = receive;
		326
		327	if (command == ATKBD_CMD_RESET_BAT)
		328	timeout = 2000000; /* 2 sec */
		329
		330	if (command & 0xff)
		331	if (atkbd_sendbyte(atkbd, command & 0xff))
		332	return (atkbd->cmdcnt = 0) - 1;
		333
		334	for (i = 0; i < send; i++)
		335	if (atkbd_sendbyte(atkbd, param[i]))
		336	return (atkbd->cmdcnt = 0) - 1;
		337
		338	while (atkbd->cmdcnt && timeout--) {
		339
		340	if (atkbd->cmdcnt == 1 &&
		341	command == ATKBD_CMD_RESET_BAT && timeout > 100000)
		342	timeout = 100000;
		343
		344	if (atkbd->cmdcnt == 1 && command == ATKBD_CMD_GETID &&
		345	atkbd->cmdbuf[1] != 0xab && atkbd->cmdbuf[1] != 0xac) {
		346	atkbd->cmdcnt = 0;
		347	break;
		348	}
		349
		350	udelay(1);
		351	}
		352
		353	if (param)
		354	for (i = 0; i < receive; i++)
		355	param[i] = atkbd->cmdbuf[(receive - 1) - i];
		356
		357	if (command == ATKBD_CMD_RESET_BAT && atkbd->cmdcnt == 1)
		358	atkbd->cmdcnt = 0;
		359
		360	if (atkbd->cmdcnt) {
		361	atkbd->cmdcnt = 0;
		362	return -1;
		363	}
		364
		365	return 0;
		366	}
		367
		368	/*
		369	* Event callback from the input module. Events that change the state of
		370	* the hardware are processed here.
		371	*/
		372
		373	static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
		374	{
		375	struct atkbd *atkbd = dev->private;
		376	struct { int p; u8 v; } period[] =
		377	{ {30, 0x00}, {25, 0x02}, {20, 0x04}, {15, 0x08}, {10, 0x0c}, {7, 0x10}, {5, 0x14}, {0, 0x14} };
		378	struct { int d; u8 v; } delay[] =
		379	{ {1000, 0x60}, {750, 0x40}, {500, 0x20}, {250, 0x00}, {0, 0x00} };
		380	char param[2];
		381	int i, j;
		382
		383	if (!atkbd->write)
		384	return -1;
		385
		386	switch (type) {
		387
		388	case EV_LED:
		389
		390	*param = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0)
		391	\| (test_bit(LED_NUML, dev->led) ? 2 : 0)
		392	\| (test_bit(LED_CAPSL, dev->led) ? 4 : 0);
		393	atkbd_command(atkbd, param, ATKBD_CMD_SETLEDS);
		394
		395	if (atkbd->set == 4) {
		396	param[0] = 0;
		397	param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0)
		398	\| (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0)
		399	\| (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0)
		400	\| (test_bit(LED_MISC, dev->led) ? 0x10 : 0)
		401	\| (test_bit(LED_MUTE, dev->led) ? 0x20 : 0);
		402	atkbd_command(atkbd, param, ATKBD_CMD_EX_SETLEDS);
		403	}
		404
		405	return 0;
		406
		407
		408	case EV_REP:
		409
		410	if (atkbd_softrepeat) return 0;
		411
		412	i = j = 0;
		413	while (period[i].p > dev->rep[REP_PERIOD]) i++;
		414	while (delay[j].d > dev->rep[REP_DELAY]) j++;
		415	dev->rep[REP_PERIOD] = period[i].p;
		416	dev->rep[REP_DELAY] = delay[j].d;
		417	param[0] = period[i].v \| delay[j].v;
		418	atkbd_command(atkbd, param, ATKBD_CMD_SETREP);
		419
		420	return 0;
518	mauro	421
		422	case EV_PWR:
		423	if (code) {
		424	/* Enable the keyboard to receive keystrokes. */
		425	if (atkbd_command(atkbd, NULL, ATKBD_CMD_ENABLE)) {
		426	printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n", atkbd->serio->phys);
		427	return -1;
		428	}
		429	} else {
		430	/* Disable the keyboard to receive keystrokes. */
		431	if (atkbd_command(atkbd, NULL, ATKBD_CMD_RESET_DIS)) {
		432	printk(KERN_ERR "atkbd.c: Failed to disable keyboard on %s\n", atkbd->serio->phys);
		433	return -1;
		434	}
		435	}
		436	return 0;
495	giacomo	437	}
		438
		439	return -1;
		440	}
		441
		442	/*
		443	* atkbd_probe() probes for an AT keyboard on a serio port.
		444	*/
		445
		446	static int atkbd_probe(struct atkbd *atkbd)
		447	{
		448	unsigned char param[2];
		449
		450	/*
		451	* Some systems, where the bit-twiddling when testing the io-lines of the
		452	* controller may confuse the keyboard need a full reset of the keyboard. On
		453	* these systems the BIOS also usually doesn't do it for us.
		454	*/
		455
		456	if (atkbd_reset)
		457	if (atkbd_command(atkbd, NULL, ATKBD_CMD_RESET_BAT))
		458	printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", atkbd->serio->phys);
		459
		460	/*
		461	* Then we check the keyboard ID. We should get 0xab83 under normal conditions.
		462	* Some keyboards report different values, but the first byte is always 0xab or
		463	* 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this
		464	* should make sure we don't try to set the LEDs on it.
		465	*/
		466
		467	if (atkbd_command(atkbd, param, ATKBD_CMD_GETID)) {
		468
		469	/*
		470	* If the get ID command failed, we check if we can at least set the LEDs on
		471	* the keyboard. This should work on every keyboard out there. It also turns
		472	* the LEDs off, which we want anyway.
		473	*/
		474	param[0] = 0;
		475	if (atkbd_command(atkbd, param, ATKBD_CMD_SETLEDS))
		476	return -1;
		477	atkbd->id = 0xabba;
		478	return 0;
		479	}
		480
		481	if (param[0] != 0xab && param[0] != 0xac)
		482	return -1;
		483	atkbd->id = (param[0] << 8) \| param[1];
		484
		485
		486	return 0;
		487	}
		488
		489	/*
		490	* atkbd_set_3 checks if a keyboard has a working Set 3 support, and
		491	* sets it into that. Unfortunately there are keyboards that can be switched
		492	* to Set 3, but don't work well in that (BTC Multimedia ...)
		493	*/
		494
		495	static int atkbd_set_3(struct atkbd *atkbd)
		496	{
		497	unsigned char param[2];
		498
		499	/*
		500	* For known special keyboards we can go ahead and set the correct set.
		501	* We check for NCD PS/2 Sun, NorthGate OmniKey 101 and
		502	* IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards.
		503	*/
		504
		505	if (atkbd->translated)
		506	return 2;
		507
		508	if (atkbd->id == 0xaca1) {
		509	param[0] = 3;
		510	atkbd_command(atkbd, param, ATKBD_CMD_SSCANSET);
		511	return 3;
		512	}
		513
		514	if (atkbd_set != 2)
		515	if (!atkbd_command(atkbd, param, ATKBD_CMD_OK_GETID)) {
		516	atkbd->id = param[0] << 8 \| param[1];
		517	return 2;
		518	}
		519
		520	if (atkbd_set == 4) {
		521	param[0] = 0x71;
		522	if (!atkbd_command(atkbd, param, ATKBD_CMD_EX_ENABLE))
		523	return 4;
		524	}
		525
		526	if (atkbd_set != 3)
		527	return 2;
		528
		529	param[0] = 3;
		530	if (atkbd_command(atkbd, param, ATKBD_CMD_SSCANSET))
		531	return 2;
		532
		533	param[0] = 0;
		534	if (atkbd_command(atkbd, param, ATKBD_CMD_GSCANSET))
		535	return 2;
		536
		537	if (param[0] != 3) {
		538	param[0] = 2;
		539	if (atkbd_command(atkbd, param, ATKBD_CMD_SSCANSET))
		540	return 2;
		541	}
		542
		543	atkbd_command(atkbd, param, ATKBD_CMD_SETALL_MBR);
		544
		545	return 3;
		546	}
		547
		548	static int atkbd_enable(struct atkbd *atkbd)
		549	{
		550	unsigned char param[1];
		551
		552	/*
		553	* Set the LEDs to a defined state.
		554	*/
		555
		556	param[0] = 0;
		557	if (atkbd_command(atkbd, param, ATKBD_CMD_SETLEDS))
		558	return -1;
		559
		560	/*
		561	* Set autorepeat to fastest possible.
		562	*/
		563
		564	param[0] = 0;
		565	if (atkbd_command(atkbd, param, ATKBD_CMD_SETREP))
		566	return -1;
		567
		568	/*
		569	* Enable the keyboard to receive keystrokes.
		570	*/
		571
518	mauro	572	/*if (atkbd_command(atkbd, NULL, ATKBD_CMD_ENABLE)) {
495	giacomo	573	printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n",
		574	atkbd->serio->phys);
		575	return -1;
518	mauro	576	}*/
495	giacomo	577
		578	return 0;
		579	}
		580
		581	/*
		582	* atkbd_cleanup() restores the keyboard state so that BIOS is happy after a
		583	* reboot.
		584	*/
		585
		586	static void atkbd_cleanup(struct serio *serio)
		587	{
		588	struct atkbd *atkbd = serio->private;
		589	atkbd_command(atkbd, NULL, ATKBD_CMD_RESET_BAT);
		590	}
		591
		592	/*
		593	* atkbd_disconnect() closes and frees.
		594	*/
		595
		596	static void atkbd_disconnect(struct serio *serio)
		597	{
		598	struct atkbd *atkbd = serio->private;
		599	input_unregister_device(&atkbd->dev);
		600	serio_close(serio);
		601	kfree(atkbd);
		602	}
		603
		604	/*
		605	* atkbd_connect() is called when the serio module finds and interface
		606	* that isn't handled yet by an appropriate device driver. We check if
		607	* there is an AT keyboard out there and if yes, we register ourselves
		608	* to the input module.
		609	*/
		610
		611	static void atkbd_connect(struct serio serio, struct serio_dev dev)
		612	{
		613	struct atkbd *atkbd;
		614	int i;
		615
		616	if (!(atkbd = kmalloc(sizeof(struct atkbd), GFP_KERNEL)))
		617	return;
		618	memset(atkbd, 0, sizeof(struct atkbd));
		619
		620	switch (serio->type & SERIO_TYPE) {
		621
		622	case SERIO_8042_XL:
		623	atkbd->translated = 1;
		624	case SERIO_8042:
		625	if (serio->write)
		626	atkbd->write = 1;
		627	break;
		628	case SERIO_RS232:
		629	if ((serio->type & SERIO_PROTO) == SERIO_PS2SER)
		630	break;
		631	default:
		632	kfree(atkbd);
		633	return;
		634	}
		635
		636	if (atkbd->write) {
518	mauro	637	atkbd->dev.evbit[0] = BIT(EV_KEY) \| BIT(EV_LED) \| BIT(EV_REP) \| BIT(EV_PWR);
495	giacomo	638	atkbd->dev.ledbit[0] = BIT(LED_NUML) \| BIT(LED_CAPSL) \| BIT(LED_SCROLLL);
		639	} else atkbd->dev.evbit[0] = BIT(EV_KEY) \| BIT(EV_REP);
		640
		641	if (!atkbd_softrepeat) {
		642	atkbd->dev.rep[REP_DELAY] = 250;
		643	atkbd->dev.rep[REP_PERIOD] = 33;
		644	}
		645
		646	atkbd->serio = serio;
		647
		648	init_input_dev(&atkbd->dev);
		649
		650	atkbd->dev.keycode = atkbd->keycode;
		651	atkbd->dev.keycodesize = sizeof(unsigned char);
		652	atkbd->dev.keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
		653	atkbd->dev.event = atkbd_event;
		654	atkbd->dev.private = atkbd;
		655
		656	serio->private = atkbd;
		657
		658	if (serio_open(serio, dev)) {
		659	kfree(atkbd);
		660	return;
		661	}
		662
		663	if (atkbd->write) {
		664
		665	if (atkbd_probe(atkbd)) {
		666	serio_close(serio);
		667	kfree(atkbd);
		668	return;
		669	}
		670
		671	atkbd->set = atkbd_set_3(atkbd);
		672	atkbd_enable(atkbd);
		673
		674	} else {
		675	atkbd->set = 2;
		676	atkbd->id = 0xab00;
		677	}
		678
		679	if (atkbd->set == 4) {
		680	atkbd->dev.ledbit[0] \|= BIT(LED_COMPOSE) \| BIT(LED_SUSPEND) \| BIT(LED_SLEEP) \| BIT(LED_MUTE) \| BIT(LED_MISC);
		681	sprintf26(atkbd->name, "AT Set 2 Extended keyboard");
		682	} else
		683	sprintf26(atkbd->name, "AT %s Set %d keyboard",
		684	atkbd->translated ? "Translated" : "Raw", atkbd->set);
		685
		686	sprintf26(atkbd->phys, "%s/input0", serio->phys);
		687
		688	if (atkbd->set == 3)
		689	memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
		690	else
		691	memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
		692
		693	atkbd->dev.name = atkbd->name;
		694	atkbd->dev.phys = atkbd->phys;
		695	atkbd->dev.id.bustype = BUS_I8042;
		696	atkbd->dev.id.vendor = 0x0001;
		697	atkbd->dev.id.product = atkbd->set;
		698	atkbd->dev.id.version = atkbd->id;
		699
		700	for (i = 0; i < 512; i++)
		701	if (atkbd->keycode[i] && atkbd->keycode[i] < 255)
		702	set_bit(atkbd->keycode[i], atkbd->dev.keybit);
		703
		704	input_register_device(&atkbd->dev);
		705
		706	printk(KERN_INFO "input: %s on %s\n", atkbd->name, serio->phys);
		707	}
		708
		709
		710	static struct serio_dev atkbd_dev = {
		711	.interrupt = atkbd_interrupt,
		712	.connect = atkbd_connect,
		713	.disconnect = atkbd_disconnect,
		714	.cleanup = atkbd_cleanup,
		715	};
		716
		717	#ifndef MODULE
		718	static int __init atkbd_setup_set(char *str)
		719	{
		720	int ints[4];
		721	str = get_options(str, ARRAY_SIZE(ints), ints);
		722	if (ints[0] > 0) atkbd_set = ints[1];
		723	return 1;
		724	}
		725	static int __init atkbd_setup_reset(char *str)
		726	{
		727	int ints[4];
		728	str = get_options(str, ARRAY_SIZE(ints), ints);
		729	if (ints[0] > 0) atkbd_reset = ints[1];
		730	return 1;
		731	}
		732
		733	__setup("atkbd_set=", atkbd_setup_set);
		734	__setup("atkbd_reset", atkbd_setup_reset);
		735	#endif
		736
		737	int __init atkbd_init(void)
		738	{
		739	serio_register_device(&atkbd_dev);
		740	return 0;
		741	}
		742
		743	void __exit atkbd_exit(void)
		744	{
		745	serio_unregister_device(&atkbd_dev);
		746	}
		747
		748	module_init(atkbd_init);
		749	module_exit(atkbd_exit);

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(root)/shark/trunk/drivers/input/keyboard/atkbd.c - Rev 518