/* * $Id: amikbd.c,v 1.13 2002/02/01 16:02:24 vojtech Exp $ * *  Copyright (c) 2000-2001 Vojtech Pavlik * *  Based on the work of: *	Hamish Macdonald *//* * Amiga keyboard driver for Linux/m68k *//* * 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 * * Should you need to contact me, the author, you can do so either by * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic */#include <linux/module.h>#include <linux/init.h>#include <linux/input.h>#include <linux/delay.h>#include <linux/interrupt.h>#include <asm/amigaints.h>#include <asm/amigahw.h>#include <asm/irq.h>MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");MODULE_DESCRIPTION("Amiga keyboard driver");MODULE_LICENSE("GPL");static unsigned char amikbd_keycode[0x78] = {	[0]	 = KEY_GRAVE,	[1]	 = KEY_1,	[2]	 = KEY_2,	[3]	 = KEY_3,	[4]	 = KEY_4,	[5]	 = KEY_5,	[6]	 = KEY_6,	[7]	 = KEY_7,	[8]	 = KEY_8,	[9]	 = KEY_9,	[10]	 = KEY_0,	[11]	 = KEY_MINUS,	[12]	 = KEY_EQUAL,	[13]	 = KEY_BACKSLASH,	[15]	 = KEY_KP0,	[16]	 = KEY_Q,	[17]	 = KEY_W,	[18]	 = KEY_E,	[19]	 = KEY_R,	[20]	 = KEY_T,	[21]	 = KEY_Y,	[22]	 = KEY_U,	[23]	 = KEY_I,	[24]	 = KEY_O,	[25]	 = KEY_P,	[26]	 = KEY_LEFTBRACE,	[27]	 = KEY_RIGHTBRACE,	[29]	 = KEY_KP1,	[30]	 = KEY_KP2,	[31]	 = KEY_KP3,	[32]	 = KEY_A,	[33]	 = KEY_S,	[34]	 = KEY_D,	[35]	 = KEY_F,	[36]	 = KEY_G,	[37]	 = KEY_H,	[38]	 = KEY_J,	[39]	 = KEY_K,	[40]	 = KEY_L,	[41]	 = KEY_SEMICOLON,	[42]	 = KEY_APOSTROPHE,	[43]	 = KEY_BACKSLASH,	[45]	 = KEY_KP4,	[46]	 = KEY_KP5,	[47]	 = KEY_KP6,	[48]	 = KEY_102ND,	[49]	 = KEY_Z,	[50]	 = KEY_X,	[51]	 = KEY_C,	[52]	 = KEY_V,	[53]	 = KEY_B,	[54]	 = KEY_N,	[55]	 = KEY_M,	[56]	 = KEY_COMMA,	[57]	 = KEY_DOT,	[58]	 = KEY_SLASH,	[60]	 = KEY_KPDOT,	[61]	 = KEY_KP7,	[62]	 = KEY_KP8,	[63]	 = KEY_KP9,	[64]	 = KEY_SPACE,	[65]	 = KEY_BACKSPACE,	[66]	 = KEY_TAB,	[67]	 = KEY_KPENTER,	[68]	 = KEY_ENTER,	[69]	 = KEY_ESC,	[70]	 = KEY_DELETE,	[74]	 = KEY_KPMINUS,	[76]	 = KEY_UP,	[77]	 = KEY_DOWN,	[78]	 = KEY_RIGHT,	[79]	 = KEY_LEFT,	[80]	 = KEY_F1,	[81]	 = KEY_F2,	[82]	 = KEY_F3,	[83]	 = KEY_F4,	[84]	 = KEY_F5,	[85]	 = KEY_F6,	[86]	 = KEY_F7,	[87]	 = KEY_F8,	[88]	 = KEY_F9,	[89]	 = KEY_F10,	[90]	 = KEY_KPLEFTPAREN,	[91]	 = KEY_KPRIGHTPAREN,	[92]	 = KEY_KPSLASH,	[93]	 = KEY_KPASTERISK,	[94]	 = KEY_KPPLUS,	[95]	 = KEY_HELP,	[96]	 = KEY_LEFTSHIFT,	[97]	 = KEY_RIGHTSHIFT,	[98]	 = KEY_CAPSLOCK,	[99]	 = KEY_LEFTCTRL,	[100]	 = KEY_LEFTALT,	[101]	 = KEY_RIGHTALT,	[102]	 = KEY_LEFTMETA,	[103]	 = KEY_RIGHTMETA};static const char *amikbd_messages[8] = {	[0] = KERN_ALERT "amikbd: Ctrl-Amiga-Amiga reset warning!!\n",	[1] = KERN_WARNING "amikbd: keyboard lost sync\n",	[2] = KERN_WARNING "amikbd: keyboard buffer overflow\n",	[3] = KERN_WARNING "amikbd: keyboard controller failure\n",	[4] = KERN_ERR "amikbd: keyboard selftest failure\n",	[5] = KERN_INFO "amikbd: initiate power-up key stream\n",	[6] = KERN_INFO "amikbd: terminate power-up key stream\n",	[7] = KERN_WARNING "amikbd: keyboard interrupt\n"};static struct input_dev amikbd_dev;static char *amikbd_name = "Amiga keyboard";static char *amikbd_phys = "amikbd/input0";static irqreturn_t amikbd_interrupt(int irq, void *dummy, struct pt_regs *fp){	unsigned char scancode, down;	scancode = ~ciaa.sdr;		/* get and invert scancode (keyboard is active low) */	ciaa.cra |= 0x40;		/* switch SP pin to output for handshake */	udelay(85);			/* wait until 85 us have expired */	ciaa.cra &= ~0x40;		/* switch CIA serial port to input mode */	down = !(scancode & 1);		/* lowest bit is release bit */	scancode >>= 1;	if (scancode < 0x78) {		/* scancodes < 0x78 are keys */		scancode = amikbd_keycode[scancode];		input_regs(&amikbd_dev, fp);		if (scancode == KEY_CAPSLOCK) {	/* CapsLock is a toggle switch key on Amiga */			input_report_key(&amikbd_dev, scancode, 1);			input_report_key(&amikbd_dev, scancode, 0);			input_sync(&amikbd_dev);		} else {			input_report_key(&amikbd_dev, scancode, down);			input_sync(&amikbd_dev);		}	} else				/* scancodes >= 0x78 are error codes */		printk(amikbd_messages[scancode - 0x78]);	return IRQ_HANDLED;}static int __init amikbd_init(void){	int i;	if (!AMIGAHW_PRESENT(AMI_KEYBOARD))		return -EIO;	if (!request_mem_region(CIAA_PHYSADDR-1+0xb00, 0x100, "amikeyb"))		return -EBUSY;	init_input_dev(&amikbd_dev);	amikbd_dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REP);	amikbd_dev.keycode = amikbd_keycode;	amikbd_dev.keycodesize = sizeof(unsigned char);	amikbd_dev.keycodemax = ARRAY_SIZE(amikbd_keycode);	for (i = 0; i < 0x78; i++)		if (amikbd_keycode[i])			set_bit(amikbd_keycode[i], amikbd_dev.keybit);	ciaa.cra &= ~0x41;	 /* serial data in, turn off TA */	request_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt, 0, "amikbd", amikbd_interrupt);	amikbd_dev.name = amikbd_name;	amikbd_dev.phys = amikbd_phys;	amikbd_dev.id.bustype = BUS_AMIGA;	amikbd_dev.id.vendor = 0x0001;	amikbd_dev.id.product = 0x0001;	amikbd_dev.id.version = 0x0100;	input_register_device(&amikbd_dev);	printk(KERN_INFO "input: %s\n", amikbd_name);	return 0;}static void __exit amikbd_exit(void){	input_unregister_device(&amikbd_dev);	free_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt);	release_mem_region(CIAA_PHYSADDR-1+0xb00, 0x100);}module_init(amikbd_init);module_exit(amikbd_exit);