1 /*
2 * atakbd.c
3 *
4 * Copyright (c) 2005 Michael Schmitz
5 *
6 * Based on amikbd.c, which is
7 *
8 * Copyright (c) 2000-2001 Vojtech Pavlik
9 *
10 * Based on the work of:
11 * Hamish Macdonald
12 */
13
14 /*
15 * Atari keyboard driver for Linux/m68k
16 *
17 * The low level init and interrupt stuff is handled in arch/mm68k/atari/atakeyb.c
18 * (the keyboard ACIA also handles the mouse and joystick data, and the keyboard
19 * interrupt is shared with the MIDI ACIA so MIDI data also get handled there).
20 * This driver only deals with handing key events off to the input layer.
21 */
22
23 /*
24 * This program is free software; you can redistribute it and/or modify
25 * it under the terms of the GNU General Public License as published by
26 * the Free Software Foundation; either version 2 of the License, or
27 * (at your option) any later version.
28 *
29 * This program is distributed in the hope that it will be useful,
30 * but WITHOUT ANY WARRANTY; without even the implied warranty of
31 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
32 * GNU General Public License for more details.
33 *
34 * You should have received a copy of the GNU General Public License
35 * along with this program; if not, write to the Free Software
36 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
37 *
38 * Should you need to contact me, the author, you can do so either by
39 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
40 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
41 */
42
43 #include <linux/module.h>
44 #include <linux/init.h>
45 #include <linux/input.h>
46 #include <linux/delay.h>
47 #include <linux/interrupt.h>
48
49 #include <asm/atariints.h>
50 #include <asm/atarihw.h>
51 #include <asm/atarikb.h>
52 #include <asm/irq.h>
53
54 MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
55 MODULE_DESCRIPTION("Atari keyboard driver");
56 MODULE_LICENSE("GPL");
57
58 /*
59 0x47: KP_7 71
60 0x48: KP_8 72
61 0x49: KP_9 73
62 0x62: KP_/ 98
63 0x4b: KP_4 75
64 0x4c: KP_5 76
65 0x4d: KP_6 77
66 0x37: KP_* 55
67 0x4f: KP_1 79
68 0x50: KP_2 80
69 0x51: KP_3 81
70 0x4a: KP_- 74
71 0x52: KP_0 82
72 0x53: KP_. 83
73 0x4e: KP_+ 78
74
75 0x67: Up 103
76 0x6c: Down 108
77 0x69: Left 105
78 0x6a: Right 106
79 */
80
81
82 static unsigned char atakbd_keycode[0x73] = { /* American layout */
83 [1] = KEY_ESC,
84 [2] = KEY_1,
85 [3] = KEY_2,
86 [4] = KEY_3,
87 [5] = KEY_4,
88 [6] = KEY_5,
89 [7] = KEY_6,
90 [8] = KEY_7,
91 [9] = KEY_8,
92 [10] = KEY_9,
93 [11] = KEY_0,
94 [12] = KEY_MINUS,
95 [13] = KEY_EQUAL,
96 [14] = KEY_BACKSPACE,
97 [15] = KEY_TAB,
98 [16] = KEY_Q,
99 [17] = KEY_W,
100 [18] = KEY_E,
101 [19] = KEY_R,
102 [20] = KEY_T,
103 [21] = KEY_Y,
104 [22] = KEY_U,
105 [23] = KEY_I,
106 [24] = KEY_O,
107 [25] = KEY_P,
108 [26] = KEY_LEFTBRACE,
109 [27] = KEY_RIGHTBRACE,
110 [28] = KEY_ENTER,
111 [29] = KEY_LEFTCTRL,
112 [30] = KEY_A,
113 [31] = KEY_S,
114 [32] = KEY_D,
115 [33] = KEY_F,
116 [34] = KEY_G,
117 [35] = KEY_H,
118 [36] = KEY_J,
119 [37] = KEY_K,
120 [38] = KEY_L,
121 [39] = KEY_SEMICOLON,
122 [40] = KEY_APOSTROPHE,
123 [41] = KEY_GRAVE,
124 [42] = KEY_LEFTSHIFT,
125 [43] = KEY_BACKSLASH,
126 [44] = KEY_Z,
127 [45] = KEY_X,
128 [46] = KEY_C,
129 [47] = KEY_V,
130 [48] = KEY_B,
131 [49] = KEY_N,
132 [50] = KEY_M,
133 [51] = KEY_COMMA,
134 [52] = KEY_DOT,
135 [53] = KEY_SLASH,
136 [54] = KEY_RIGHTSHIFT,
137 [55] = KEY_KPASTERISK,
138 [56] = KEY_LEFTALT,
139 [57] = KEY_SPACE,
140 [58] = KEY_CAPSLOCK,
141 [59] = KEY_F1,
142 [60] = KEY_F2,
143 [61] = KEY_F3,
144 [62] = KEY_F4,
145 [63] = KEY_F5,
146 [64] = KEY_F6,
147 [65] = KEY_F7,
148 [66] = KEY_F8,
149 [67] = KEY_F9,
150 [68] = KEY_F10,
151 [71] = KEY_HOME,
152 [72] = KEY_UP,
153 [74] = KEY_KPMINUS,
154 [75] = KEY_LEFT,
155 [77] = KEY_RIGHT,
156 [78] = KEY_KPPLUS,
157 [80] = KEY_DOWN,
158 [82] = KEY_INSERT,
159 [83] = KEY_DELETE,
160 [96] = KEY_102ND,
161 [97] = KEY_UNDO,
162 [98] = KEY_HELP,
163 [99] = KEY_KPLEFTPAREN,
164 [100] = KEY_KPRIGHTPAREN,
165 [101] = KEY_KPSLASH,
166 [102] = KEY_KPASTERISK,
167 [103] = KEY_KP7,
168 [104] = KEY_KP8,
169 [105] = KEY_KP9,
170 [106] = KEY_KP4,
171 [107] = KEY_KP5,
172 [108] = KEY_KP6,
173 [109] = KEY_KP1,
174 [110] = KEY_KP2,
175 [111] = KEY_KP3,
176 [112] = KEY_KP0,
177 [113] = KEY_KPDOT,
178 [114] = KEY_KPENTER,
179 };
180
181 static struct input_dev *atakbd_dev;
182
atakbd_interrupt(unsigned char scancode,char down)183 static void atakbd_interrupt(unsigned char scancode, char down)
184 {
185
186 if (scancode < 0x73) { /* scancodes < 0xf3 are keys */
187
188 // report raw events here?
189
190 scancode = atakbd_keycode[scancode];
191
192 input_report_key(atakbd_dev, scancode, down);
193 input_sync(atakbd_dev);
194 } else /* scancodes >= 0xf3 are mouse data, most likely */
195 printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode);
196
197 return;
198 }
199
atakbd_init(void)200 static int __init atakbd_init(void)
201 {
202 int i, error;
203
204 if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP))
205 return -ENODEV;
206
207 // need to init core driver if not already done so
208 error = atari_keyb_init();
209 if (error)
210 return error;
211
212 atakbd_dev = input_allocate_device();
213 if (!atakbd_dev)
214 return -ENOMEM;
215
216 atakbd_dev->name = "Atari Keyboard";
217 atakbd_dev->phys = "atakbd/input0";
218 atakbd_dev->id.bustype = BUS_HOST;
219 atakbd_dev->id.vendor = 0x0001;
220 atakbd_dev->id.product = 0x0001;
221 atakbd_dev->id.version = 0x0100;
222
223 atakbd_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
224 atakbd_dev->keycode = atakbd_keycode;
225 atakbd_dev->keycodesize = sizeof(unsigned char);
226 atakbd_dev->keycodemax = ARRAY_SIZE(atakbd_keycode);
227
228 for (i = 1; i < 0x72; i++) {
229 set_bit(atakbd_keycode[i], atakbd_dev->keybit);
230 }
231
232 /* error check */
233 error = input_register_device(atakbd_dev);
234 if (error) {
235 input_free_device(atakbd_dev);
236 return error;
237 }
238
239 atari_input_keyboard_interrupt_hook = atakbd_interrupt;
240
241 return 0;
242 }
243
atakbd_exit(void)244 static void __exit atakbd_exit(void)
245 {
246 atari_input_keyboard_interrupt_hook = NULL;
247 input_unregister_device(atakbd_dev);
248 }
249
250 module_init(atakbd_init);
251 module_exit(atakbd_exit);
252