Logo Search packages:      
Sourcecode: linux version File versions  Download package

atakbd.c

/*
 *  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.
 */

/*
 * 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/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[0x72] = {   /* American layout */
      [0]    = KEY_GRAVE,
      [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_BACKSLASH, /* FIXME, '#' */
      [42]   = KEY_LEFTSHIFT,
      [43]   = KEY_GRAVE,           /* FIXME: '~' */
      [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,
      [69]   = KEY_ESC,
      [70]   = KEY_DELETE,
      [71]   = KEY_KP7,
      [72]   = KEY_KP8,
      [73]   = KEY_KP9,
      [74]   = KEY_KPMINUS,
      [75]   = KEY_KP4,
      [76]   = KEY_KP5,
      [77]   = KEY_KP6,
      [78]   = KEY_KPPLUS,
      [79]   = KEY_KP1,
      [80]   = KEY_KP2,
      [81]   = KEY_KP3,
      [82]   = KEY_KP0,
      [83]   = KEY_KPDOT,
      [90]   = KEY_KPLEFTPAREN,
      [91]   = KEY_KPRIGHTPAREN,
      [92]   = KEY_KPASTERISK,      /* FIXME */
      [93]   = KEY_KPASTERISK,
      [94]   = KEY_KPPLUS,
      [95]   = KEY_HELP,
      [96]   = KEY_BACKSLASH, /* FIXME: '<' */
      [97]   = KEY_KPASTERISK,      /* FIXME */
      [98]   = KEY_KPSLASH,
      [99]   = KEY_KPLEFTPAREN,
      [100]  = KEY_KPRIGHTPAREN,
      [101]  = KEY_KPSLASH,
      [102]  = KEY_KPASTERISK,
      [103]  = KEY_UP,
      [104]  = KEY_KPASTERISK,      /* FIXME */
      [105]  = KEY_LEFT,
      [106]  = KEY_RIGHT,
      [107]  = KEY_KPASTERISK,      /* FIXME */
      [108]  = KEY_DOWN,
      [109]  = KEY_KPASTERISK,      /* FIXME */
      [110]  = KEY_KPASTERISK,      /* FIXME */
      [111]  = KEY_KPASTERISK,      /* FIXME */
      [112]  = KEY_KPASTERISK,      /* FIXME */
      [113]  = KEY_KPASTERISK /* FIXME */
};

static struct input_dev *atakbd_dev;

static void atakbd_interrupt(unsigned char scancode, char down)
{

      if (scancode < 0x72) {        /* scancodes < 0xf2 are keys */

            // report raw events here?

            scancode = atakbd_keycode[scancode];

            if (scancode == KEY_CAPSLOCK) {     /* CapsLock is a toggle switch key on Amiga */
                  input_report_key(atakbd_dev, scancode, 1);
                  input_report_key(atakbd_dev, scancode, 0);
                  input_sync(atakbd_dev);
            } else {
                  input_report_key(atakbd_dev, scancode, down);
                  input_sync(atakbd_dev);
            }
      } else                        /* scancodes >= 0xf2 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 -EIO;

      // need to init core driver if not already done so
      if (atari_keyb_init())
            return -ENODEV;

      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 = 0x0001;
      atakbd_dev->id.product = 0x0001;
      atakbd_dev->id.version = 0x0100;

      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 < 0x72; 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);

Generated by  Doxygen 1.6.0   Back to index