e945b568e2
According to the tests in do_initcalls(), the proper error code in case no device is found is -ENODEV, not -ENXIO or -EIO. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
269 lines
6.3 KiB
C
269 lines
6.3 KiB
C
/*
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* atakbd.c
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*
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* Copyright (c) 2005 Michael Schmitz
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*
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* Based on amikbd.c, which is
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*
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* Copyright (c) 2000-2001 Vojtech Pavlik
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*
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* Based on the work of:
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* Hamish Macdonald
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*/
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/*
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* Atari keyboard driver for Linux/m68k
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*
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* The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c
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* (the keyboard ACIA also handles the mouse and joystick data, and the keyboard
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* interrupt is shared with the MIDI ACIA so MIDI data also get handled there).
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* This driver only deals with handing key events off to the input layer.
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Should you need to contact me, the author, you can do so either by
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* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
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* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/input.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <asm/atariints.h>
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#include <asm/atarihw.h>
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#include <asm/atarikb.h>
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#include <asm/irq.h>
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MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
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MODULE_DESCRIPTION("Atari keyboard driver");
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MODULE_LICENSE("GPL");
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/*
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0x47: KP_7 71
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0x48: KP_8 72
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0x49: KP_9 73
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0x62: KP_/ 98
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0x4b: KP_4 75
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0x4c: KP_5 76
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0x4d: KP_6 77
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0x37: KP_* 55
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0x4f: KP_1 79
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0x50: KP_2 80
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0x51: KP_3 81
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0x4a: KP_- 74
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0x52: KP_0 82
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0x53: KP_. 83
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0x4e: KP_+ 78
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0x67: Up 103
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0x6c: Down 108
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0x69: Left 105
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0x6a: Right 106
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*/
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static unsigned char atakbd_keycode[0x72] = { /* American layout */
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[0] = KEY_GRAVE,
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[1] = KEY_ESC,
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[2] = KEY_1,
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[3] = KEY_2,
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[4] = KEY_3,
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[5] = KEY_4,
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[6] = KEY_5,
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[7] = KEY_6,
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[8] = KEY_7,
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[9] = KEY_8,
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[10] = KEY_9,
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[11] = KEY_0,
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[12] = KEY_MINUS,
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[13] = KEY_EQUAL,
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[14] = KEY_BACKSPACE,
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[15] = KEY_TAB,
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[16] = KEY_Q,
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[17] = KEY_W,
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[18] = KEY_E,
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[19] = KEY_R,
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[20] = KEY_T,
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[21] = KEY_Y,
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[22] = KEY_U,
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[23] = KEY_I,
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[24] = KEY_O,
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[25] = KEY_P,
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[26] = KEY_LEFTBRACE,
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[27] = KEY_RIGHTBRACE,
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[28] = KEY_ENTER,
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[29] = KEY_LEFTCTRL,
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[30] = KEY_A,
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[31] = KEY_S,
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[32] = KEY_D,
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[33] = KEY_F,
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[34] = KEY_G,
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[35] = KEY_H,
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[36] = KEY_J,
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[37] = KEY_K,
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[38] = KEY_L,
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[39] = KEY_SEMICOLON,
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[40] = KEY_APOSTROPHE,
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[41] = KEY_BACKSLASH, /* FIXME, '#' */
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[42] = KEY_LEFTSHIFT,
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[43] = KEY_GRAVE, /* FIXME: '~' */
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[44] = KEY_Z,
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[45] = KEY_X,
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[46] = KEY_C,
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[47] = KEY_V,
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[48] = KEY_B,
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[49] = KEY_N,
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[50] = KEY_M,
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[51] = KEY_COMMA,
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[52] = KEY_DOT,
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[53] = KEY_SLASH,
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[54] = KEY_RIGHTSHIFT,
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[55] = KEY_KPASTERISK,
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[56] = KEY_LEFTALT,
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[57] = KEY_SPACE,
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[58] = KEY_CAPSLOCK,
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[59] = KEY_F1,
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[60] = KEY_F2,
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[61] = KEY_F3,
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[62] = KEY_F4,
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[63] = KEY_F5,
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[64] = KEY_F6,
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[65] = KEY_F7,
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[66] = KEY_F8,
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[67] = KEY_F9,
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[68] = KEY_F10,
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[69] = KEY_ESC,
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[70] = KEY_DELETE,
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[71] = KEY_KP7,
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[72] = KEY_KP8,
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[73] = KEY_KP9,
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[74] = KEY_KPMINUS,
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[75] = KEY_KP4,
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[76] = KEY_KP5,
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[77] = KEY_KP6,
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[78] = KEY_KPPLUS,
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[79] = KEY_KP1,
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[80] = KEY_KP2,
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[81] = KEY_KP3,
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[82] = KEY_KP0,
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[83] = KEY_KPDOT,
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[90] = KEY_KPLEFTPAREN,
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[91] = KEY_KPRIGHTPAREN,
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[92] = KEY_KPASTERISK, /* FIXME */
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[93] = KEY_KPASTERISK,
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[94] = KEY_KPPLUS,
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[95] = KEY_HELP,
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[96] = KEY_BACKSLASH, /* FIXME: '<' */
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[97] = KEY_KPASTERISK, /* FIXME */
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[98] = KEY_KPSLASH,
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[99] = KEY_KPLEFTPAREN,
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[100] = KEY_KPRIGHTPAREN,
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[101] = KEY_KPSLASH,
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[102] = KEY_KPASTERISK,
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[103] = KEY_UP,
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[104] = KEY_KPASTERISK, /* FIXME */
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[105] = KEY_LEFT,
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[106] = KEY_RIGHT,
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[107] = KEY_KPASTERISK, /* FIXME */
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[108] = KEY_DOWN,
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[109] = KEY_KPASTERISK, /* FIXME */
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[110] = KEY_KPASTERISK, /* FIXME */
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[111] = KEY_KPASTERISK, /* FIXME */
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[112] = KEY_KPASTERISK, /* FIXME */
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[113] = KEY_KPASTERISK /* FIXME */
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};
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static struct input_dev *atakbd_dev;
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static void atakbd_interrupt(unsigned char scancode, char down)
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{
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if (scancode < 0x72) { /* scancodes < 0xf2 are keys */
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// report raw events here?
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scancode = atakbd_keycode[scancode];
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if (scancode == KEY_CAPSLOCK) { /* CapsLock is a toggle switch key on Amiga */
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input_report_key(atakbd_dev, scancode, 1);
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input_report_key(atakbd_dev, scancode, 0);
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input_sync(atakbd_dev);
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} else {
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input_report_key(atakbd_dev, scancode, down);
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input_sync(atakbd_dev);
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}
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} else /* scancodes >= 0xf2 are mouse data, most likely */
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printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode);
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return;
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}
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static int __init atakbd_init(void)
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{
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int i, error;
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if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP))
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return -ENODEV;
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// need to init core driver if not already done so
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if (atari_keyb_init())
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return -ENODEV;
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atakbd_dev = input_allocate_device();
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if (!atakbd_dev)
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return -ENOMEM;
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atakbd_dev->name = "Atari Keyboard";
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atakbd_dev->phys = "atakbd/input0";
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atakbd_dev->id.bustype = BUS_HOST;
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atakbd_dev->id.vendor = 0x0001;
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atakbd_dev->id.product = 0x0001;
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atakbd_dev->id.version = 0x0100;
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atakbd_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
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atakbd_dev->keycode = atakbd_keycode;
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atakbd_dev->keycodesize = sizeof(unsigned char);
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atakbd_dev->keycodemax = ARRAY_SIZE(atakbd_keycode);
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for (i = 1; i < 0x72; i++) {
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set_bit(atakbd_keycode[i], atakbd_dev->keybit);
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}
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/* error check */
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error = input_register_device(atakbd_dev);
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if (error) {
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input_free_device(atakbd_dev);
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return error;
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}
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atari_input_keyboard_interrupt_hook = atakbd_interrupt;
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return 0;
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}
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static void __exit atakbd_exit(void)
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{
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atari_input_keyboard_interrupt_hook = NULL;
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input_unregister_device(atakbd_dev);
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}
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module_init(atakbd_init);
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module_exit(atakbd_exit);
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