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[/] [or1k_old/] [trunk/] [rc203soc/] [sw/] [uClinux/] [arch/] [m68k/] [amiga/] [amikeyb.c] - Blame information for rev 1782

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Line No. Rev Author Line
1 1623 jcastillo 
/*
2 
 * linux/amiga/amikeyb.c
3 
 *
4 
 * Amiga Keyboard driver for 680x0 Linux
5 
 *
6 
 * This file is subject to the terms and conditions of the GNU General Public
7 
 * License.  See the file COPYING in the main directory of this archive
8 
 * for more details.
9 
 */
10 
 
11 
/*
12 
 * Amiga support by Hamish Macdonald
13 
 */
14 
 
15 
#include <linux/types.h>
16 
#include <linux/sched.h>
17 
#include <linux/interrupt.h>
18 
#include <linux/errno.h>
19 
#include <linux/keyboard.h>
20 
#include <linux/delay.h>
21 
#include <linux/timer.h>
22 
#include <linux/kd.h>
23 
#include <linux/random.h>
24 
 
25 
#include <asm/bootinfo.h>
26 
#include <asm/amigatypes.h>
27 
#include <asm/amigaints.h>
28 
#include <asm/amigahw.h>
29 
#include <asm/irq.h>
30 
 
31 
extern int do_poke_blanked_console;
32 
extern void process_keycode (int);
33 
 
34 
#define AMIKEY_CAPS     (0x62)
35 
#define BREAK_MASK      (0x80)
36 
 
37 
static u_short amiplain_map[NR_KEYS] = {
38 
        0xf060, 0xf031, 0xf032, 0xf033, 0xf034, 0xf035, 0xf036, 0xf037,
39 
        0xf038, 0xf039, 0xf030, 0xf02d, 0xf03d, 0xf05c, 0xf200, 0xf300,
40 
        0xfb71, 0xfb77, 0xfb65, 0xfb72, 0xfb74, 0xfb79, 0xfb75, 0xfb69,
41 
        0xfb6f, 0xfb70, 0xf05b, 0xf05d, 0xf200, 0xf301, 0xf302, 0xf303,
42 
        0xfb61, 0xfb73, 0xfb64, 0xfb66, 0xfb67, 0xfb68, 0xfb6a, 0xfb6b,
43 
        0xfb6c, 0xf03b, 0xf027, 0xf200, 0xf200, 0xf304, 0xf305, 0xf306,
44 
        0xf200, 0xfb7a, 0xfb78, 0xfb63, 0xfb76, 0xfb62, 0xfb6e, 0xfb6d,
45 
        0xf02c, 0xf02e, 0xf02f, 0xf200, 0xf310, 0xf307, 0xf308, 0xf309,
46 
        0xf020, 0xf07f, 0xf009, 0xf30e, 0xf201, 0xf01b, 0xf07f, 0xf200,
47 
        0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
48 
        0xf100, 0xf101, 0xf102, 0xf103, 0xf104, 0xf105, 0xf106, 0xf107,
49 
        0xf108, 0xf109, 0xf208, 0xf209, 0xf30d, 0xf30c, 0xf30a, 0xf10a,
50 
        0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
51 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
52 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
53 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
54 
};
55 
 
56 
static u_short amishift_map[NR_KEYS] = {
57 
        0xf07e, 0xf021, 0xf040, 0xf023, 0xf024, 0xf025, 0xf05e, 0xf026,
58 
        0xf02a, 0xf028, 0xf029, 0xf05f, 0xf02b, 0xf07c, 0xf200, 0xf300,
59 
        0xfb51, 0xfb57, 0xfb45, 0xfb52, 0xfb54, 0xfb59, 0xfb55, 0xfb49,
60 
        0xfb4f, 0xfb50, 0xf07b, 0xf07d, 0xf200, 0xf301, 0xf302, 0xf303,
61 
        0xfb41, 0xfb53, 0xfb44, 0xfb46, 0xfb47, 0xfb48, 0xfb4a, 0xfb4b,
62 
        0xfb4c, 0xf03a, 0xf022, 0xf200, 0xf200, 0xf304, 0xf305, 0xf306,
63 
        0xf200, 0xfb5a, 0xfb58, 0xfb43, 0xfb56, 0xfb42, 0xfb4e, 0xfb4d,
64 
        0xf03c, 0xf03e, 0xf03f, 0xf200, 0xf310, 0xf307, 0xf308, 0xf309,
65 
        0xf020, 0xf07f, 0xf009, 0xf30e, 0xf201, 0xf01b, 0xf07f, 0xf200,
66 
        0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
67 
        0xf10a, 0xf10b, 0xf10c, 0xf10d, 0xf10e, 0xf10f, 0xf110, 0xf111,
68 
        0xf112, 0xf113, 0xf208, 0xf203, 0xf30d, 0xf30c, 0xf30a, 0xf10a,
69 
        0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
70 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
71 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
72 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
73 
};
74 
 
75 
static u_short amialtgr_map[NR_KEYS] = {
76 
        0xf200, 0xf200, 0xf040, 0xf200, 0xf024, 0xf200, 0xf200, 0xf07b,
77 
        0xf05b, 0xf05d, 0xf07d, 0xf05c, 0xf200, 0xf200, 0xf200, 0xf300,
78 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
79 
        0xf200, 0xf200, 0xf200, 0xf07e, 0xf200, 0xf301, 0xf302, 0xf303,
80 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
81 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf304, 0xf305, 0xf306,
82 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
83 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf310, 0xf307, 0xf308, 0xf309,
84 
        0xf200, 0xf07f, 0xf200, 0xf30e, 0xf201, 0xf200, 0xf200, 0xf200,
85 
        0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
86 
        0xf50c, 0xf50d, 0xf50e, 0xf50f, 0xf510, 0xf511, 0xf512, 0xf513,
87 
        0xf514, 0xf515, 0xf208, 0xf202, 0xf30d, 0xf30c, 0xf30a, 0xf516,
88 
        0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
89 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
90 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
91 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
92 
};
93 
 
94 
static u_short amictrl_map[NR_KEYS] = {
95 
        0xf000, 0xf200, 0xf000, 0xf01b, 0xf01c, 0xf01d, 0xf01e, 0xf01f,
96 
        0xf07f, 0xf200, 0xf200, 0xf01f, 0xf200, 0xf01c, 0xf200, 0xf300,
97 
        0xf011, 0xf017, 0xf005, 0xf012, 0xf014, 0xf019, 0xf015, 0xf009,
98 
        0xf00f, 0xf010, 0xf01b, 0xf01d, 0xf200, 0xf301, 0xf302, 0xf303,
99 
        0xf001, 0xf013, 0xf004, 0xf006, 0xf007, 0xf008, 0xf00a, 0xf00b,
100 
        0xf00c, 0xf200, 0xf007, 0xf200, 0xf200, 0xf304, 0xf305, 0xf306,
101 
        0xf200, 0xf01a, 0xf018, 0xf003, 0xf016, 0xf002, 0xf00e, 0xf00d,
102 
        0xf200, 0xf200, 0xf07f, 0xf200, 0xf310, 0xf307, 0xf308, 0xf309,
103 
        0xf000, 0xf07f, 0xf200, 0xf30e, 0xf201, 0xf200, 0xf200, 0xf200,
104 
        0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
105 
        0xf100, 0xf101, 0xf102, 0xf103, 0xf104, 0xf105, 0xf106, 0xf107,
106 
        0xf108, 0xf109, 0xf208, 0xf204, 0xf30d, 0xf30c, 0xf30a, 0xf10a,
107 
        0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
108 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
109 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
110 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
111 
};
112 
 
113 
static u_short amishift_ctrl_map[NR_KEYS] = {
114 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
115 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf300,
116 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
117 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf301, 0xf302, 0xf303,
118 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
119 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf304, 0xf305, 0xf306,
120 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
121 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf310, 0xf307, 0xf308, 0xf309,
122 
        0xf200, 0xf07f, 0xf200, 0xf30e, 0xf201, 0xf200, 0xf200, 0xf200,
123 
        0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
124 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
125 
        0xf200, 0xf200, 0xf208, 0xf200, 0xf30d, 0xf30c, 0xf30a, 0xf200,
126 
        0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
127 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
128 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
129 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
130 
};
131 
 
132 
static u_short amialt_map[NR_KEYS] = {
133 
        0xf860, 0xf831, 0xf832, 0xf833, 0xf834, 0xf835, 0xf836, 0xf837,
134 
        0xf838, 0xf839, 0xf830, 0xf82d, 0xf83d, 0xf85c, 0xf200, 0xf900,
135 
        0xf871, 0xf877, 0xf865, 0xf872, 0xf874, 0xf879, 0xf875, 0xf869,
136 
        0xf86f, 0xf870, 0xf85b, 0xf85d, 0xf200, 0xf901, 0xf902, 0xf903,
137 
        0xf861, 0xf873, 0xf864, 0xf866, 0xf867, 0xf868, 0xf86a, 0xf86b,
138 
        0xf86c, 0xf83b, 0xf827, 0xf200, 0xf200, 0xf904, 0xf905, 0xf906,
139 
        0xf200, 0xf87a, 0xf878, 0xf863, 0xf876, 0xf862, 0xf86e, 0xf86d,
140 
        0xf82c, 0xf82e, 0xf82f, 0xf200, 0xf310, 0xf907, 0xf908, 0xf909,
141 
        0xf820, 0xf87f, 0xf809, 0xf30e, 0xf80d, 0xf81b, 0xf87f, 0xf200,
142 
        0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
143 
        0xf500, 0xf501, 0xf502, 0xf503, 0xf504, 0xf505, 0xf506, 0xf507,
144 
        0xf508, 0xf509, 0xf208, 0xf209, 0xf30d, 0xf30c, 0xf30a, 0xf50a,
145 
        0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
146 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
147 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
148 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
149 
};
150 
 
151 
static u_short amictrl_alt_map[NR_KEYS] = {
152 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
153 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf300,
154 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
155 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf301, 0xf302, 0xf303,
156 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
157 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf304, 0xf305, 0xf306,
158 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
159 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf20c, 0xf307, 0xf308, 0xf309,
160 
        0xf200, 0xf07f, 0xf200, 0xf30e, 0xf201, 0xf200, 0xf200, 0xf200,
161 
        0xf200, 0xf200, 0xf30b, 0xf200, 0xf603, 0xf600, 0xf602, 0xf601,
162 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
163 
        0xf200, 0xf200, 0xf208, 0xf200, 0xf30d, 0xf30c, 0xf30a, 0xf200,
164 
        0xf700, 0xf700, 0xf207, 0xf702, 0xf703, 0xf701, 0xf200, 0xf200,
165 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
166 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
167 
        0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
168 
};
169 
 
170 
#define DEFAULT_KEYB_REP_DELAY  (HZ/4)
171 
#define DEFAULT_KEYB_REP_RATE   (HZ/25)
172 
 
173 
/* These could be settable by some ioctl() in future... */
174 
static unsigned int key_repeat_delay = DEFAULT_KEYB_REP_DELAY;
175 
static unsigned int key_repeat_rate  = DEFAULT_KEYB_REP_RATE;
176 
 
177 
static unsigned char rep_scancode;
178 
static void amikeyb_rep (unsigned long ignore);
179 
static struct timer_list amikeyb_rep_timer = {NULL, NULL, 0, 0, amikeyb_rep};
180 
 
181 
extern struct pt_regs *pt_regs;
182 
 
183 
static void amikeyb_rep (unsigned long ignore)
184 
{
185 
        unsigned long flags;
186 
        save_flags(flags);
187 
        cli();
188 
 
189 
        pt_regs = NULL;
190 
 
191 
        amikeyb_rep_timer.expires = jiffies + key_repeat_rate;
192 
        amikeyb_rep_timer.prev = amikeyb_rep_timer.next = NULL;
193 
        add_timer(&amikeyb_rep_timer);
194 
        process_keycode (rep_scancode);
195 
 
196 
        restore_flags(flags);
197 
}
198 
 
199 
static void keyboard_interrupt (int irq, struct pt_regs *fp, void *dummy)
200 
{
201 
    unsigned char scancode, break_flag;
202 
 
203 
    /* save frame for register dump */
204 
    pt_regs = (struct pt_regs *)fp;
205 
 
206 
    /* get and invert scancode (keyboard is active low) */
207 
    scancode = ~ciaa.sdr;
208 
 
209 
    /* switch SP pin to output for handshake */
210 
    ciaa.cra |= 0x40;
211 
    /* wait until 85 us have expired */
212 
    udelay(85);
213 
    /* switch CIA serial port to input mode */
214 
    ciaa.cra &= ~0x40;
215 
 
216 
    /* rotate scan code to get up/down bit in proper position */
217 
    __asm__ __volatile__ ("rorb #1,%0" : "=g" (scancode) : "0" (scancode));
218 
 
219 
    /*
220 
     * do machine independent keyboard processing of "normalized" scancode
221 
     * A "normalized" scancode is one that an IBM PC might generate
222 
     * Check make/break first
223 
     */
224 
    break_flag = scancode & BREAK_MASK;
225 
    scancode &= (unsigned char )~BREAK_MASK;
226 
 
227 
    if (scancode == AMIKEY_CAPS) {
228 
            /* if the key is CAPS, fake a press/release. */
229 
            process_keycode (AMIKEY_CAPS);
230 
            process_keycode (BREAK_MASK | AMIKEY_CAPS);
231 
    } else {
232 
            /* handle repeat */
233 
            if (break_flag) {
234 
                    del_timer(&amikeyb_rep_timer);
235 
                    rep_scancode = 0;
236 
            } else {
237 
                    del_timer(&amikeyb_rep_timer);
238 
                    rep_scancode = break_flag | scancode;
239 
                    amikeyb_rep_timer.expires = jiffies + key_repeat_delay;
240 
                    amikeyb_rep_timer.prev = amikeyb_rep_timer.next = NULL;
241 
                    add_timer(&amikeyb_rep_timer);
242 
            }
243 
            process_keycode (break_flag | scancode);
244 
    }
245 
 
246 
    do_poke_blanked_console = 1;
247 
    mark_bh(CONSOLE_BH);
248 
    add_keyboard_randomness(scancode);
249 
 
250 
    return;
251 
}
252 
 
253 
int amiga_keyb_init (void)
254 
{
255 
    if (!AMIGAHW_PRESENT(AMI_KEYBOARD))
256 
        return -EIO;
257 
 
258 
    /* setup key map */
259 
    key_maps[0]  = amiplain_map;
260 
    key_maps[1]  = amishift_map;
261 
    key_maps[2]  = amialtgr_map;
262 
    key_maps[4]  = amictrl_map;
263 
    key_maps[5]  = amishift_ctrl_map;
264 
    key_maps[8]  = amialt_map;
265 
    key_maps[12] = amictrl_alt_map;
266 
    memcpy (plain_map, amiplain_map, sizeof(plain_map));
267 
 
268 
    /*
269 
     * Initialize serial data direction.
270 
     */
271 
    ciaa.cra &= ~0x41;       /* serial data in, turn off TA */
272 
 
273 
    /*
274 
     * arrange for processing of keyboard interrupt
275 
     */
276 
    add_isr (IRQ_AMIGA_CIAA_SP, keyboard_interrupt, 0, NULL, "keyboard");
277 
 
278 
    return 0;
279 
}
280 
 
281 
int amiga_kbdrate( struct kbd_repeat *k )
282 
 
283 
{
284 
        if (k->delay > 0) {
285 
                /* convert from msec to jiffies */
286 
                key_repeat_delay = (k->delay * HZ + 500) / 1000;
287 
                if (key_repeat_delay < 1)
288 
                        key_repeat_delay = 1;
289 
        }
290 
        if (k->rate > 0) {
291 
                key_repeat_rate = (k->rate * HZ + 500) / 1000;
292 
                if (key_repeat_rate < 1)
293 
                        key_repeat_rate = 1;
294 
        }
295 
 
296 
        k->delay = key_repeat_delay * 1000 / HZ;
297 
        k->rate  = key_repeat_rate  * 1000 / HZ;
298 
 
299 
        return( 0 );
300 
}

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