/* * $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 , or by paper mail: * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic */ #include #include #include #include #include #include #include #include #include MODULE_AUTHOR("Vojtech Pavlik "); MODULE_DESCRIPTION("Amiga keyboard driver"); MODULE_LICENSE("GPL"); static unsigned char amikbd_keycode[0x78] __initdata = { [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 irqreturn_t amikbd_interrupt(int irq, void *dummy) { 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 */ if (scancode == 98) { /* CapsLock is a toggle switch key on Amiga */ input_report_key(amikbd_dev, scancode, 1); input_report_key(amikbd_dev, scancode, 0); } 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, j, err; if (!AMIGAHW_PRESENT(AMI_KEYBOARD)) return -ENODEV; if (!request_mem_region(CIAA_PHYSADDR-1+0xb00, 0x100, "amikeyb")) return -EBUSY; amikbd_dev = input_allocate_device(); if (!amikbd_dev) { printk(KERN_ERR "amikbd: not enough memory for input device\n"); err = -ENOMEM; goto fail1; } amikbd_dev->name = "Amiga Keyboard"; amikbd_dev->phys = "amikbd/input0"; amikbd_dev->id.bustype = BUS_AMIGA; amikbd_dev->id.vendor = 0x0001; amikbd_dev->id.product = 0x0001; amikbd_dev->id.version = 0x0100; amikbd_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); for (i = 0; i < 0x78; i++) set_bit(i, amikbd_dev->keybit); for (i = 0; i < MAX_NR_KEYMAPS; i++) { static u_short temp_map[NR_KEYS] __initdata; if (!key_maps[i]) continue; memset(temp_map, 0, sizeof(temp_map)); for (j = 0; j < 0x78; j++) { if (!amikbd_keycode[j]) continue; temp_map[j] = key_maps[i][amikbd_keycode[j]]; } for (j = 0; j < NR_KEYS; j++) { if (!temp_map[j]) temp_map[j] = 0xf200; } memcpy(key_maps[i], temp_map, sizeof(temp_map)); } ciaa.cra &= ~0x41; /* serial data in, turn off TA */ if (request_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt, 0, "amikbd", amikbd_interrupt)) { err = -EBUSY; goto fail2; } err = input_register_device(amikbd_dev); if (err) goto fail3; return 0; fail3: free_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt); fail2: input_free_device(amikbd_dev); fail1: release_mem_region(CIAA_PHYSADDR - 1 + 0xb00, 0x100); return err; } static void __exit amikbd_exit(void) { free_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt); input_unregister_device(amikbd_dev); release_mem_region(CIAA_PHYSADDR - 1 + 0xb00, 0x100); } module_init(amikbd_init); module_exit(amikbd_exit);