// SPDX-License-Identifier: GPL-2.0-or-later
/*
* atakbd.c
*
* Copyright (c) 2005 Michael Schmitz
*
* Based on amikbd.c, which is
*
* Copyright (c) 2000-2001 Vojtech Pavlik
*
* Based on the work of:
* Hamish Macdonald
*/
/*
* Atari keyboard driver for Linux/m68k
*
* The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c
* (the keyboard ACIA also handles the mouse and joystick data, and the keyboard
* interrupt is shared with the MIDI ACIA so MIDI data also get handled there).
* This driver only deals with handing key events off to the input layer.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <asm /atariints.h>
#include <asm /atarihw.h>
#include <asm /atarikb.h>
#include <asm /irq.h>
MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>" );
MODULE_DESCRIPTION("Atari keyboard driver" );
MODULE_LICENSE("GPL" );
/*
0x47: KP_7 71
0x48: KP_8 72
0x49: KP_9 73
0x62: KP_/ 98
0x4b: KP_4 75
0x4c: KP_5 76
0x4d: KP_6 77
0x37: KP_* 55
0x4f: KP_1 79
0x50: KP_2 80
0x51: KP_3 81
0x4a: KP_- 74
0x52: KP_0 82
0x53: KP_. 83
0x4e: KP_+ 78
0x67: Up 103
0x6c: Down 108
0x69: Left 105
0x6a: Right 106
*/
static unsigned char atakbd_keycode[0 x73] = { /* American layout */
[1 ] = KEY_ESC,
[2 ] = KEY_1,
[3 ] = KEY_2,
[4 ] = KEY_3,
[5 ] = KEY_4,
[6 ] = KEY_5,
[7 ] = KEY_6,
[8 ] = KEY_7,
[9 ] = KEY_8,
[10 ] = KEY_9,
[11 ] = KEY_0,
[12 ] = KEY_MINUS,
[13 ] = KEY_EQUAL,
[14 ] = KEY_BACKSPACE,
[15 ] = KEY_TAB,
[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,
[28 ] = KEY_ENTER,
[29 ] = KEY_LEFTCTRL,
[30 ] = KEY_A,
[31 ] = KEY_S,
[32 ] = KEY_D,
[33 ] = KEY_F,
[34 ] = KEY_G,
[35 ] = KEY_H,
[36 ] = KEY_J,
[37 ] = KEY_K,
[38 ] = KEY_L,
[39 ] = KEY_SEMICOLON,
[40 ] = KEY_APOSTROPHE,
[41 ] = KEY_GRAVE,
[42 ] = KEY_LEFTSHIFT,
[43 ] = KEY_BACKSLASH,
[44 ] = KEY_Z,
[45 ] = KEY_X,
[46 ] = KEY_C,
[47 ] = KEY_V,
[48 ] = KEY_B,
[49 ] = KEY_N,
[50 ] = KEY_M,
[51 ] = KEY_COMMA,
[52 ] = KEY_DOT,
[53 ] = KEY_SLASH,
[54 ] = KEY_RIGHTSHIFT,
[55 ] = KEY_KPASTERISK,
[56 ] = KEY_LEFTALT,
[57 ] = KEY_SPACE,
[58 ] = KEY_CAPSLOCK,
[59 ] = KEY_F1,
[60 ] = KEY_F2,
[61 ] = KEY_F3,
[62 ] = KEY_F4,
[63 ] = KEY_F5,
[64 ] = KEY_F6,
[65 ] = KEY_F7,
[66 ] = KEY_F8,
[67 ] = KEY_F9,
[68 ] = KEY_F10,
[71 ] = KEY_HOME,
[72 ] = KEY_UP,
[74 ] = KEY_KPMINUS,
[75 ] = KEY_LEFT,
[77 ] = KEY_RIGHT,
[78 ] = KEY_KPPLUS,
[80 ] = KEY_DOWN,
[82 ] = KEY_INSERT,
[83 ] = KEY_DELETE,
[96 ] = KEY_102ND,
[97 ] = KEY_UNDO,
[98 ] = KEY_HELP,
[99 ] = KEY_KPLEFTPAREN,
[100 ] = KEY_KPRIGHTPAREN,
[101 ] = KEY_KPSLASH,
[102 ] = KEY_KPASTERISK,
[103 ] = KEY_KP7,
[104 ] = KEY_KP8,
[105 ] = KEY_KP9,
[106 ] = KEY_KP4,
[107 ] = KEY_KP5,
[108 ] = KEY_KP6,
[109 ] = KEY_KP1,
[110 ] = KEY_KP2,
[111 ] = KEY_KP3,
[112 ] = KEY_KP0,
[113 ] = KEY_KPDOT,
[114 ] = KEY_KPENTER,
};
static struct input_dev *atakbd_dev;
static void atakbd_interrupt(unsigned char scancode, char down)
{
if (scancode < 0 x73) { /* scancodes < 0xf3 are keys */
// report raw events here?
scancode = atakbd_keycode[scancode];
input_report_key(atakbd_dev, scancode, down);
input_sync(atakbd_dev);
} else /* scancodes >= 0xf3 are mouse data, most likely */
printk(KERN_INFO "atakbd: unhandled scancode %x\n" , scancode);
return ;
}
static int __init atakbd_init(void )
{
int i, error;
if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP))
return -ENODEV;
// need to init core driver if not already done so
error = atari_keyb_init();
if (error)
return error;
atakbd_dev = input_allocate_device();
if (!atakbd_dev)
return -ENOMEM;
atakbd_dev->name = "Atari Keyboard" ;
atakbd_dev->phys = "atakbd/input0" ;
atakbd_dev->id.bustype = BUS_HOST;
atakbd_dev->id.vendor = 0 x0001;
atakbd_dev->id.product = 0 x0001;
atakbd_dev->id.version = 0 x0100;
atakbd_dev->evbit[0 ] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
atakbd_dev->keycode = atakbd_keycode;
atakbd_dev->keycodesize = sizeof (unsigned char );
atakbd_dev->keycodemax = ARRAY_SIZE(atakbd_keycode);
for (i = 1 ; i < 0 x72; i++) {
set_bit(atakbd_keycode[i], atakbd_dev->keybit);
}
/* error check */
error = input_register_device(atakbd_dev);
if (error) {
input_free_device(atakbd_dev);
return error;
}
atari_input_keyboard_interrupt_hook = atakbd_interrupt;
return 0 ;
}
static void __exit atakbd_exit(void )
{
atari_input_keyboard_interrupt_hook = NULL;
input_unregister_device(atakbd_dev);
}
module_init(atakbd_init);
module_exit(atakbd_exit);
Messung V0.5 in Prozent C=95 H=93 G=93
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-07)
¤
*© Formatika GbR, Deutschland