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  • only in /asuswrt-rt-n18u-9.0.0.4.380.2695/release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/input/keyboard/
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
54MODULE_AUTHOR("Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>");
55MODULE_DESCRIPTION("Atari keyboard driver");
56MODULE_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
82static unsigned char atakbd_keycode[0x72] = {	/* American layout */
83	[0]	 = KEY_GRAVE,
84	[1]	 = KEY_ESC,
85	[2]	 = KEY_1,
86	[3]	 = KEY_2,
87	[4]	 = KEY_3,
88	[5]	 = KEY_4,
89	[6]	 = KEY_5,
90	[7]	 = KEY_6,
91	[8]	 = KEY_7,
92	[9]	 = KEY_8,
93	[10]	 = KEY_9,
94	[11]	 = KEY_0,
95	[12]	 = KEY_MINUS,
96	[13]	 = KEY_EQUAL,
97	[14]	 = KEY_BACKSPACE,
98	[15]	 = KEY_TAB,
99	[16]	 = KEY_Q,
100	[17]	 = KEY_W,
101	[18]	 = KEY_E,
102	[19]	 = KEY_R,
103	[20]	 = KEY_T,
104	[21]	 = KEY_Y,
105	[22]	 = KEY_U,
106	[23]	 = KEY_I,
107	[24]	 = KEY_O,
108	[25]	 = KEY_P,
109	[26]	 = KEY_LEFTBRACE,
110	[27]	 = KEY_RIGHTBRACE,
111	[28]	 = KEY_ENTER,
112	[29]	 = KEY_LEFTCTRL,
113	[30]	 = KEY_A,
114	[31]	 = KEY_S,
115	[32]	 = KEY_D,
116	[33]	 = KEY_F,
117	[34]	 = KEY_G,
118	[35]	 = KEY_H,
119	[36]	 = KEY_J,
120	[37]	 = KEY_K,
121	[38]	 = KEY_L,
122	[39]	 = KEY_SEMICOLON,
123	[40]	 = KEY_APOSTROPHE,
124	[41]	 = KEY_BACKSLASH,
125	[42]	 = KEY_LEFTSHIFT,
126	[43]	 = KEY_GRAVE,
127	[44]	 = KEY_Z,
128	[45]	 = KEY_X,
129	[46]	 = KEY_C,
130	[47]	 = KEY_V,
131	[48]	 = KEY_B,
132	[49]	 = KEY_N,
133	[50]	 = KEY_M,
134	[51]	 = KEY_COMMA,
135	[52]	 = KEY_DOT,
136	[53]	 = KEY_SLASH,
137	[54]	 = KEY_RIGHTSHIFT,
138	[55]	 = KEY_KPASTERISK,
139	[56]	 = KEY_LEFTALT,
140	[57]	 = KEY_SPACE,
141	[58]	 = KEY_CAPSLOCK,
142	[59]	 = KEY_F1,
143	[60]	 = KEY_F2,
144	[61]	 = KEY_F3,
145	[62]	 = KEY_F4,
146	[63]	 = KEY_F5,
147	[64]	 = KEY_F6,
148	[65]	 = KEY_F7,
149	[66]	 = KEY_F8,
150	[67]	 = KEY_F9,
151	[68]	 = KEY_F10,
152	[69]	 = KEY_ESC,
153	[70]	 = KEY_DELETE,
154	[71]	 = KEY_KP7,
155	[72]	 = KEY_KP8,
156	[73]	 = KEY_KP9,
157	[74]	 = KEY_KPMINUS,
158	[75]	 = KEY_KP4,
159	[76]	 = KEY_KP5,
160	[77]	 = KEY_KP6,
161	[78]	 = KEY_KPPLUS,
162	[79]	 = KEY_KP1,
163	[80]	 = KEY_KP2,
164	[81]	 = KEY_KP3,
165	[82]	 = KEY_KP0,
166	[83]	 = KEY_KPDOT,
167	[90]	 = KEY_KPLEFTPAREN,
168	[91]	 = KEY_KPRIGHTPAREN,
169	[92]	 = KEY_KPASTERISK,
170	[93]	 = KEY_KPASTERISK,
171	[94]	 = KEY_KPPLUS,
172	[95]	 = KEY_HELP,
173	[96]	 = KEY_BACKSLASH,
174	[97]	 = KEY_KPASTERISK,
175	[98]	 = KEY_KPSLASH,
176	[99]	 = KEY_KPLEFTPAREN,
177	[100]	 = KEY_KPRIGHTPAREN,
178	[101]	 = KEY_KPSLASH,
179	[102]	 = KEY_KPASTERISK,
180	[103]	 = KEY_UP,
181	[104]	 = KEY_KPASTERISK,
182	[105]	 = KEY_LEFT,
183	[106]	 = KEY_RIGHT,
184	[107]	 = KEY_KPASTERISK,
185	[108]	 = KEY_DOWN,
186	[109]	 = KEY_KPASTERISK,
187	[110]	 = KEY_KPASTERISK,
188	[111]	 = KEY_KPASTERISK,
189	[112]	 = KEY_KPASTERISK,
190	[113]	 = KEY_KPASTERISK
191};
192
193static struct input_dev *atakbd_dev;
194
195static void atakbd_interrupt(unsigned char scancode, char down)
196{
197
198	if (scancode < 0x72) {		/* scancodes < 0xf2 are keys */
199
200		// report raw events here?
201
202		scancode = atakbd_keycode[scancode];
203
204		if (scancode == KEY_CAPSLOCK) {	/* CapsLock is a toggle switch key on Amiga */
205			input_report_key(atakbd_dev, scancode, 1);
206			input_report_key(atakbd_dev, scancode, 0);
207			input_sync(atakbd_dev);
208		} else {
209			input_report_key(atakbd_dev, scancode, down);
210			input_sync(atakbd_dev);
211		}
212	} else				/* scancodes >= 0xf2 are mouse data, most likely */
213		printk(KERN_INFO "atakbd: unhandled scancode %x\n", scancode);
214
215	return;
216}
217
218static int __init atakbd_init(void)
219{
220	int i, error;
221
222	if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP))
223		return -ENODEV;
224
225	// need to init core driver if not already done so
226	if (atari_keyb_init())
227		return -ENODEV;
228
229	atakbd_dev = input_allocate_device();
230	if (!atakbd_dev)
231		return -ENOMEM;
232
233	atakbd_dev->name = "Atari Keyboard";
234	atakbd_dev->phys = "atakbd/input0";
235	atakbd_dev->id.bustype = BUS_HOST;
236	atakbd_dev->id.vendor = 0x0001;
237	atakbd_dev->id.product = 0x0001;
238	atakbd_dev->id.version = 0x0100;
239
240	atakbd_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
241	atakbd_dev->keycode = atakbd_keycode;
242	atakbd_dev->keycodesize = sizeof(unsigned char);
243	atakbd_dev->keycodemax = ARRAY_SIZE(atakbd_keycode);
244
245	for (i = 1; i < 0x72; i++) {
246		set_bit(atakbd_keycode[i], atakbd_dev->keybit);
247	}
248
249	/* error check */
250	error = input_register_device(atakbd_dev);
251	if (error) {
252		input_free_device(atakbd_dev);
253		return error;
254	}
255
256	atari_input_keyboard_interrupt_hook = atakbd_interrupt;
257
258	return 0;
259}
260
261static void __exit atakbd_exit(void)
262{
263	atari_input_keyboard_interrupt_hook = NULL;
264	input_unregister_device(atakbd_dev);
265}
266
267module_init(atakbd_init);
268module_exit(atakbd_exit);
269