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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [input/] [joystick/] [db9.c] - Blame information for rev 65

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1 62 marcus.erl 
/*
2 
 * $Id: db9.c,v 1.13 2002/04/07 20:13:37 vojtech Exp $
3 
 *
4 
 *  Copyright (c) 1999-2001 Vojtech Pavlik
5 
 *
6 
 *  Based on the work of:
7 
 *      Andree Borrmann         Mats Sjövall
8 
 */
9 
 
10 
/*
11 
 * Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver for Linux
12 
 */
13 
 
14 
/*
15 
 * This program is free software; you can redistribute it and/or modify
16 
 * it under the terms of the GNU General Public License as published by
17 
 * the Free Software Foundation; either version 2 of the License, or
18 
 * (at your option) any later version.
19 
 *
20 
 * This program is distributed in the hope that it will be useful,
21 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
23 
 * GNU General Public License for more details.
24 
 *
25 
 * You should have received a copy of the GNU General Public License
26 
 * along with this program; if not, write to the Free Software
27 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 
 *
29 
 * Should you need to contact me, the author, you can do so either by
30 
 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
31 
 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
32 
 */
33 
 
34 
#include <linux/kernel.h>
35 
#include <linux/module.h>
36 
#include <linux/moduleparam.h>
37 
#include <linux/delay.h>
38 
#include <linux/init.h>
39 
#include <linux/parport.h>
40 
#include <linux/input.h>
41 
#include <linux/mutex.h>
42 
 
43 
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
44 
MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver");
45 
MODULE_LICENSE("GPL");
46 
 
47 
struct db9_config {
48 
        int args[2];
49 
        unsigned int nargs;
50 
};
51 
 
52 
#define DB9_MAX_PORTS           3
53 
static struct db9_config db9_cfg[DB9_MAX_PORTS] __initdata;
54 
 
55 
module_param_array_named(dev, db9_cfg[0].args, int, &db9_cfg[0].nargs, 0);
56 
MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)");
57 
module_param_array_named(dev2, db9_cfg[1].args, int, &db9_cfg[1].nargs, 0);
58 
MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)");
59 
module_param_array_named(dev3, db9_cfg[2].args, int, &db9_cfg[2].nargs, 0);
60 
MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)");
61 
 
62 
#define DB9_ARG_PARPORT         0
63 
#define DB9_ARG_MODE            1
64 
 
65 
#define DB9_MULTI_STICK         0x01
66 
#define DB9_MULTI2_STICK        0x02
67 
#define DB9_GENESIS_PAD         0x03
68 
#define DB9_GENESIS5_PAD        0x05
69 
#define DB9_GENESIS6_PAD        0x06
70 
#define DB9_SATURN_PAD          0x07
71 
#define DB9_MULTI_0802          0x08
72 
#define DB9_MULTI_0802_2        0x09
73 
#define DB9_CD32_PAD            0x0A
74 
#define DB9_SATURN_DPP          0x0B
75 
#define DB9_SATURN_DPP_2        0x0C
76 
#define DB9_MAX_PAD             0x0D
77 
 
78 
#define DB9_UP                  0x01
79 
#define DB9_DOWN                0x02
80 
#define DB9_LEFT                0x04
81 
#define DB9_RIGHT               0x08
82 
#define DB9_FIRE1               0x10
83 
#define DB9_FIRE2               0x20
84 
#define DB9_FIRE3               0x40
85 
#define DB9_FIRE4               0x80
86 
 
87 
#define DB9_NORMAL              0x0a
88 
#define DB9_NOSELECT            0x08
89 
 
90 
#define DB9_GENESIS6_DELAY      14
91 
#define DB9_REFRESH_TIME        HZ/100
92 
 
93 
#define DB9_MAX_DEVICES         2
94 
 
95 
struct db9_mode_data {
96 
        const char *name;
97 
        const short *buttons;
98 
        int n_buttons;
99 
        int n_pads;
100 
        int n_axis;
101 
        int bidirectional;
102 
        int reverse;
103 
};
104 
 
105 
struct db9 {
106 
        struct input_dev *dev[DB9_MAX_DEVICES];
107 
        struct timer_list timer;
108 
        struct pardevice *pd;
109 
        int mode;
110 
        int used;
111 
        struct mutex mutex;
112 
        char phys[DB9_MAX_DEVICES][32];
113 
};
114 
 
115 
static struct db9 *db9_base[3];
116 
 
117 
static const short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB };
118 
static const short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
119 
static const short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
120 
static const short db9_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_RZ, ABS_Z, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
121 
 
122 
static const struct db9_mode_data db9_modes[] = {
123 
        { NULL,                                  NULL,            0,  0,  0,  0,  0 },
124 
        { "Multisystem joystick",                db9_multi_btn,   1,  1,  2,  1,  1 },
125 
        { "Multisystem joystick (2 fire)",       db9_multi_btn,   2,  1,  2,  1,  1 },
126 
        { "Genesis pad",                         db9_genesis_btn, 4,  1,  2,  1,  1 },
127 
        { NULL,                                  NULL,            0,  0,  0,  0,  0 },
128 
        { "Genesis 5 pad",                       db9_genesis_btn, 6,  1,  2,  1,  1 },
129 
        { "Genesis 6 pad",                       db9_genesis_btn, 8,  1,  2,  1,  1 },
130 
        { "Saturn pad",                          db9_cd32_btn,    9,  6,  7,  0,  1 },
131 
        { "Multisystem (0.8.0.2) joystick",      db9_multi_btn,   1,  1,  2,  1,  1 },
132 
        { "Multisystem (0.8.0.2-dual) joystick", db9_multi_btn,   1,  2,  2,  1,  1 },
133 
        { "Amiga CD-32 pad",                     db9_cd32_btn,    7,  1,  2,  1,  1 },
134 
        { "Saturn dpp",                          db9_cd32_btn,    9,  6,  7,  0,  0 },
135 
        { "Saturn dpp dual",                     db9_cd32_btn,    9,  12, 7,  0,  0 },
136 
};
137 
 
138 
/*
139 
 * Saturn controllers
140 
 */
141 
#define DB9_SATURN_DELAY 300
142 
static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 };
143 
static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 };
144 
 
145 
/*
146 
 * db9_saturn_write_sub() writes 2 bit data.
147 
 */
148 
static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub)
149 
{
150 
        unsigned char c;
151 
 
152 
        switch (type) {
153 
        case 1: /* DPP1 */
154 
                c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data;
155 
                parport_write_data(port, c);
156 
                break;
157 
        case 2: /* DPP2 */
158 
                c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03;
159 
                parport_write_data(port, c);
160 
                break;
161 
        case 0:  /* DB9 */
162 
                c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered;
163 
                parport_write_control(port, c);
164 
                break;
165 
        }
166 
}
167 
 
168 
/*
169 
 * gc_saturn_read_sub() reads 4 bit data.
170 
 */
171 
static unsigned char db9_saturn_read_sub(struct parport *port, int type)
172 
{
173 
        unsigned char data;
174 
 
175 
        if (type) {
176 
                /* DPP */
177 
                data = parport_read_status(port) ^ 0x80;
178 
                return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0)
179 
                     | (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0);
180 
        } else {
181 
                /* DB9 */
182 
                data = parport_read_data(port) & 0x0f;
183 
                return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0)
184 
                     | (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0);
185 
        }
186 
}
187 
 
188 
/*
189 
 * db9_saturn_read_analog() sends clock and reads 8 bit data.
190 
 */
191 
static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered)
192 
{
193 
        unsigned char data;
194 
 
195 
        db9_saturn_write_sub(port, type, 0, powered, 0);
196 
        udelay(DB9_SATURN_DELAY);
197 
        data = db9_saturn_read_sub(port, type) << 4;
198 
        db9_saturn_write_sub(port, type, 2, powered, 0);
199 
        udelay(DB9_SATURN_DELAY);
200 
        data |= db9_saturn_read_sub(port, type);
201 
        return data;
202 
}
203 
 
204 
/*
205 
 * db9_saturn_read_packet() reads whole saturn packet at connector
206 
 * and returns device identifier code.
207 
 */
208 
static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered)
209 
{
210 
        int i, j;
211 
        unsigned char tmp;
212 
 
213 
        db9_saturn_write_sub(port, type, 3, powered, 0);
214 
        data[0] = db9_saturn_read_sub(port, type);
215 
        switch (data[0] & 0x0f) {
216 
        case 0xf:
217 
                /* 1111  no pad */
218 
                return data[0] = 0xff;
219 
        case 0x4: case 0x4 | 0x8:
220 
                /* ?100 : digital controller */
221 
                db9_saturn_write_sub(port, type, 0, powered, 1);
222 
                data[2] = db9_saturn_read_sub(port, type) << 4;
223 
                db9_saturn_write_sub(port, type, 2, powered, 1);
224 
                data[1] = db9_saturn_read_sub(port, type) << 4;
225 
                db9_saturn_write_sub(port, type, 1, powered, 1);
226 
                data[1] |= db9_saturn_read_sub(port, type);
227 
                db9_saturn_write_sub(port, type, 3, powered, 1);
228 
                /* data[2] |= db9_saturn_read_sub(port, type); */
229 
                data[2] |= data[0];
230 
                return data[0] = 0x02;
231 
        case 0x1:
232 
                /* 0001 : analog controller or multitap */
233 
                db9_saturn_write_sub(port, type, 2, powered, 0);
234 
                udelay(DB9_SATURN_DELAY);
235 
                data[0] = db9_saturn_read_analog(port, type, powered);
236 
                if (data[0] != 0x41) {
237 
                        /* read analog controller */
238 
                        for (i = 0; i < (data[0] & 0x0f); i++)
239 
                                data[i + 1] = db9_saturn_read_analog(port, type, powered);
240 
                        db9_saturn_write_sub(port, type, 3, powered, 0);
241 
                        return data[0];
242 
                } else {
243 
                        /* read multitap */
244 
                        if (db9_saturn_read_analog(port, type, powered) != 0x60)
245 
                                return data[0] = 0xff;
246 
                        for (i = 0; i < 60; i += 10) {
247 
                                data[i] = db9_saturn_read_analog(port, type, powered);
248 
                                if (data[i] != 0xff)
249 
                                        /* read each pad */
250 
                                        for (j = 0; j < (data[i] & 0x0f); j++)
251 
                                                data[i + j + 1] = db9_saturn_read_analog(port, type, powered);
252 
                        }
253 
                        db9_saturn_write_sub(port, type, 3, powered, 0);
254 
                        return 0x41;
255 
                }
256 
        case 0x0:
257 
                /* 0000 : mouse */
258 
                db9_saturn_write_sub(port, type, 2, powered, 0);
259 
                udelay(DB9_SATURN_DELAY);
260 
                tmp = db9_saturn_read_analog(port, type, powered);
261 
                if (tmp == 0xff) {
262 
                        for (i = 0; i < 3; i++)
263 
                                data[i + 1] = db9_saturn_read_analog(port, type, powered);
264 
                        db9_saturn_write_sub(port, type, 3, powered, 0);
265 
                        return data[0] = 0xe3;
266 
                }
267 
        default:
268 
                return data[0];
269 
        }
270 
}
271 
 
272 
/*
273 
 * db9_saturn_report() analyzes packet and reports.
274 
 */
275 
static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *devs[], int n, int max_pads)
276 
{
277 
        struct input_dev *dev;
278 
        int tmp, i, j;
279 
 
280 
        tmp = (id == 0x41) ? 60 : 10;
281 
        for (j = 0; j < tmp && n < max_pads; j += 10, n++) {
282 
                dev = devs[n];
283 
                switch (data[j]) {
284 
                case 0x16: /* multi controller (analog 4 axis) */
285 
                        input_report_abs(dev, db9_abs[5], data[j + 6]);
286 
                case 0x15: /* mission stick (analog 3 axis) */
287 
                        input_report_abs(dev, db9_abs[3], data[j + 4]);
288 
                        input_report_abs(dev, db9_abs[4], data[j + 5]);
289 
                case 0x13: /* racing controller (analog 1 axis) */
290 
                        input_report_abs(dev, db9_abs[2], data[j + 3]);
291 
                case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */
292 
                case 0x02: /* digital pad (digital 2 axis + buttons) */
293 
                        input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
294 
                        input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
295 
                        for (i = 0; i < 9; i++)
296 
                                input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
297 
                        break;
298 
                case 0x19: /* mission stick x2 (analog 6 axis + buttons) */
299 
                        input_report_abs(dev, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
300 
                        input_report_abs(dev, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
301 
                        for (i = 0; i < 9; i++)
302 
                                input_report_key(dev, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
303 
                        input_report_abs(dev, db9_abs[2], data[j + 3]);
304 
                        input_report_abs(dev, db9_abs[3], data[j + 4]);
305 
                        input_report_abs(dev, db9_abs[4], data[j + 5]);
306 
                        /*
307 
                        input_report_abs(dev, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1));
308 
                        input_report_abs(dev, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1));
309 
                        */
310 
                        input_report_abs(dev, db9_abs[6], data[j + 7]);
311 
                        input_report_abs(dev, db9_abs[7], data[j + 8]);
312 
                        input_report_abs(dev, db9_abs[5], data[j + 9]);
313 
                        break;
314 
                case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */
315 
                        input_report_key(dev, BTN_A, data[j + 3] & 0x80);
316 
                        input_report_abs(dev, db9_abs[2], data[j + 3] & 0x7f);
317 
                        break;
318 
                case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */
319 
                        input_report_key(dev, BTN_START, data[j + 1] & 0x08);
320 
                        input_report_key(dev, BTN_A, data[j + 1] & 0x04);
321 
                        input_report_key(dev, BTN_C, data[j + 1] & 0x02);
322 
                        input_report_key(dev, BTN_B, data[j + 1] & 0x01);
323 
                        input_report_abs(dev, db9_abs[2], data[j + 2] ^ 0x80);
324 
                        input_report_abs(dev, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */
325 
                        break;
326 
                case 0xff:
327 
                default: /* no pad */
328 
                        input_report_abs(dev, db9_abs[0], 0);
329 
                        input_report_abs(dev, db9_abs[1], 0);
330 
                        for (i = 0; i < 9; i++)
331 
                                input_report_key(dev, db9_cd32_btn[i], 0);
332 
                        break;
333 
                }
334 
        }
335 
        return n;
336 
}
337 
 
338 
static int db9_saturn(int mode, struct parport *port, struct input_dev *devs[])
339 
{
340 
        unsigned char id, data[60];
341 
        int type, n, max_pads;
342 
        int tmp, i;
343 
 
344 
        switch (mode) {
345 
        case DB9_SATURN_PAD:
346 
                type = 0;
347 
                n = 1;
348 
                break;
349 
        case DB9_SATURN_DPP:
350 
                type = 1;
351 
                n = 1;
352 
                break;
353 
        case DB9_SATURN_DPP_2:
354 
                type = 1;
355 
                n = 2;
356 
                break;
357 
        default:
358 
                return -1;
359 
        }
360 
        max_pads = min(db9_modes[mode].n_pads, DB9_MAX_DEVICES);
361 
        for (tmp = 0, i = 0; i < n; i++) {
362 
                id = db9_saturn_read_packet(port, data, type + i, 1);
363 
                tmp = db9_saturn_report(id, data, devs, tmp, max_pads);
364 
        }
365 
        return 0;
366 
}
367 
 
368 
static void db9_timer(unsigned long private)
369 
{
370 
        struct db9 *db9 = (void *) private;
371 
        struct parport *port = db9->pd->port;
372 
        struct input_dev *dev = db9->dev[0];
373 
        struct input_dev *dev2 = db9->dev[1];
374 
        int data, i;
375 
 
376 
        switch (db9->mode) {
377 
                case DB9_MULTI_0802_2:
378 
 
379 
                        data = parport_read_data(port) >> 3;
380 
 
381 
                        input_report_abs(dev2, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
382 
                        input_report_abs(dev2, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
383 
                        input_report_key(dev2, BTN_TRIGGER, ~data & DB9_FIRE1);
384 
 
385 
                case DB9_MULTI_0802:
386 
 
387 
                        data = parport_read_status(port) >> 3;
388 
 
389 
                        input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
390 
                        input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
391 
                        input_report_key(dev, BTN_TRIGGER, data & DB9_FIRE1);
392 
                        break;
393 
 
394 
                case DB9_MULTI_STICK:
395 
 
396 
                        data = parport_read_data(port);
397 
 
398 
                        input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
399 
                        input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
400 
                        input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
401 
                        break;
402 
 
403 
                case DB9_MULTI2_STICK:
404 
 
405 
                        data = parport_read_data(port);
406 
 
407 
                        input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
408 
                        input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
409 
                        input_report_key(dev, BTN_TRIGGER, ~data & DB9_FIRE1);
410 
                        input_report_key(dev, BTN_THUMB,   ~data & DB9_FIRE2);
411 
                        break;
412 
 
413 
                case DB9_GENESIS_PAD:
414 
 
415 
                        parport_write_control(port, DB9_NOSELECT);
416 
                        data = parport_read_data(port);
417 
 
418 
                        input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
419 
                        input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
420 
                        input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
421 
                        input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
422 
 
423 
                        parport_write_control(port, DB9_NORMAL);
424 
                        data = parport_read_data(port);
425 
 
426 
                        input_report_key(dev, BTN_A,     ~data & DB9_FIRE1);
427 
                        input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
428 
                        break;
429 
 
430 
                case DB9_GENESIS5_PAD:
431 
 
432 
                        parport_write_control(port, DB9_NOSELECT);
433 
                        data = parport_read_data(port);
434 
 
435 
                        input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
436 
                        input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
437 
                        input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
438 
                        input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
439 
 
440 
                        parport_write_control(port, DB9_NORMAL);
441 
                        data = parport_read_data(port);
442 
 
443 
                        input_report_key(dev, BTN_A,     ~data & DB9_FIRE1);
444 
                        input_report_key(dev, BTN_X,     ~data & DB9_FIRE2);
445 
                        input_report_key(dev, BTN_Y,     ~data & DB9_LEFT);
446 
                        input_report_key(dev, BTN_START, ~data & DB9_RIGHT);
447 
                        break;
448 
 
449 
                case DB9_GENESIS6_PAD:
450 
 
451 
                        parport_write_control(port, DB9_NOSELECT); /* 1 */
452 
                        udelay(DB9_GENESIS6_DELAY);
453 
                        data = parport_read_data(port);
454 
 
455 
                        input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
456 
                        input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
457 
                        input_report_key(dev, BTN_B, ~data & DB9_FIRE1);
458 
                        input_report_key(dev, BTN_C, ~data & DB9_FIRE2);
459 
 
460 
                        parport_write_control(port, DB9_NORMAL);
461 
                        udelay(DB9_GENESIS6_DELAY);
462 
                        data = parport_read_data(port);
463 
 
464 
                        input_report_key(dev, BTN_A, ~data & DB9_FIRE1);
465 
                        input_report_key(dev, BTN_START, ~data & DB9_FIRE2);
466 
 
467 
                        parport_write_control(port, DB9_NOSELECT); /* 2 */
468 
                        udelay(DB9_GENESIS6_DELAY);
469 
                        parport_write_control(port, DB9_NORMAL);
470 
                        udelay(DB9_GENESIS6_DELAY);
471 
                        parport_write_control(port, DB9_NOSELECT); /* 3 */
472 
                        udelay(DB9_GENESIS6_DELAY);
473 
                        data=parport_read_data(port);
474 
 
475 
                        input_report_key(dev, BTN_X,    ~data & DB9_LEFT);
476 
                        input_report_key(dev, BTN_Y,    ~data & DB9_DOWN);
477 
                        input_report_key(dev, BTN_Z,    ~data & DB9_UP);
478 
                        input_report_key(dev, BTN_MODE, ~data & DB9_RIGHT);
479 
 
480 
                        parport_write_control(port, DB9_NORMAL);
481 
                        udelay(DB9_GENESIS6_DELAY);
482 
                        parport_write_control(port, DB9_NOSELECT); /* 4 */
483 
                        udelay(DB9_GENESIS6_DELAY);
484 
                        parport_write_control(port, DB9_NORMAL);
485 
                        break;
486 
 
487 
                case DB9_SATURN_PAD:
488 
                case DB9_SATURN_DPP:
489 
                case DB9_SATURN_DPP_2:
490 
 
491 
                        db9_saturn(db9->mode, port, db9->dev);
492 
                        break;
493 
 
494 
                case DB9_CD32_PAD:
495 
 
496 
                        data = parport_read_data(port);
497 
 
498 
                        input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
499 
                        input_report_abs(dev, ABS_Y, (data & DB9_DOWN  ? 0 : 1) - (data & DB9_UP   ? 0 : 1));
500 
 
501 
                        parport_write_control(port, 0x0a);
502 
 
503 
                        for (i = 0; i < 7; i++) {
504 
                                data = parport_read_data(port);
505 
                                parport_write_control(port, 0x02);
506 
                                parport_write_control(port, 0x0a);
507 
                                input_report_key(dev, db9_cd32_btn[i], ~data & DB9_FIRE2);
508 
                        }
509 
 
510 
                        parport_write_control(port, 0x00);
511 
                        break;
512 
                }
513 
 
514 
        input_sync(dev);
515 
 
516 
        mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
517 
}
518 
 
519 
static int db9_open(struct input_dev *dev)
520 
{
521 
        struct db9 *db9 = input_get_drvdata(dev);
522 
        struct parport *port = db9->pd->port;
523 
        int err;
524 
 
525 
        err = mutex_lock_interruptible(&db9->mutex);
526 
        if (err)
527 
                return err;
528 
 
529 
        if (!db9->used++) {
530 
                parport_claim(db9->pd);
531 
                parport_write_data(port, 0xff);
532 
                if (db9_modes[db9->mode].reverse) {
533 
                        parport_data_reverse(port);
534 
                        parport_write_control(port, DB9_NORMAL);
535 
                }
536 
                mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
537 
        }
538 
 
539 
        mutex_unlock(&db9->mutex);
540 
        return 0;
541 
}
542 
 
543 
static void db9_close(struct input_dev *dev)
544 
{
545 
        struct db9 *db9 = input_get_drvdata(dev);
546 
        struct parport *port = db9->pd->port;
547 
 
548 
        mutex_lock(&db9->mutex);
549 
        if (!--db9->used) {
550 
                del_timer_sync(&db9->timer);
551 
                parport_write_control(port, 0x00);
552 
                parport_data_forward(port);
553 
                parport_release(db9->pd);
554 
        }
555 
        mutex_unlock(&db9->mutex);
556 
}
557 
 
558 
static struct db9 __init *db9_probe(int parport, int mode)
559 
{
560 
        struct db9 *db9;
561 
        const struct db9_mode_data *db9_mode;
562 
        struct parport *pp;
563 
        struct pardevice *pd;
564 
        struct input_dev *input_dev;
565 
        int i, j;
566 
        int err;
567 
 
568 
        if (mode < 1 || mode >= DB9_MAX_PAD || !db9_modes[mode].n_buttons) {
569 
                printk(KERN_ERR "db9.c: Bad device type %d\n", mode);
570 
                err = -EINVAL;
571 
                goto err_out;
572 
        }
573 
 
574 
        db9_mode = &db9_modes[mode];
575 
 
576 
        pp = parport_find_number(parport);
577 
        if (!pp) {
578 
                printk(KERN_ERR "db9.c: no such parport\n");
579 
                err = -ENODEV;
580 
                goto err_out;
581 
        }
582 
 
583 
        if (db9_mode->bidirectional && !(pp->modes & PARPORT_MODE_TRISTATE)) {
584 
                printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
585 
                err = -EINVAL;
586 
                goto err_put_pp;
587 
        }
588 
 
589 
        pd = parport_register_device(pp, "db9", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL);
590 
        if (!pd) {
591 
                printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n");
592 
                err = -EBUSY;
593 
                goto err_put_pp;
594 
        }
595 
 
596 
        db9 = kzalloc(sizeof(struct db9), GFP_KERNEL);
597 
        if (!db9) {
598 
                printk(KERN_ERR "db9.c: Not enough memory\n");
599 
                err = -ENOMEM;
600 
                goto err_unreg_pardev;
601 
        }
602 
 
603 
        mutex_init(&db9->mutex);
604 
        db9->pd = pd;
605 
        db9->mode = mode;
606 
        init_timer(&db9->timer);
607 
        db9->timer.data = (long) db9;
608 
        db9->timer.function = db9_timer;
609 
 
610 
        for (i = 0; i < (min(db9_mode->n_pads, DB9_MAX_DEVICES)); i++) {
611 
 
612 
                db9->dev[i] = input_dev = input_allocate_device();
613 
                if (!input_dev) {
614 
                        printk(KERN_ERR "db9.c: Not enough memory for input device\n");
615 
                        err = -ENOMEM;
616 
                        goto err_unreg_devs;
617 
                }
618 
 
619 
                snprintf(db9->phys[i], sizeof(db9->phys[i]),
620 
                         "%s/input%d", db9->pd->port->name, i);
621 
 
622 
                input_dev->name = db9_mode->name;
623 
                input_dev->phys = db9->phys[i];
624 
                input_dev->id.bustype = BUS_PARPORT;
625 
                input_dev->id.vendor = 0x0002;
626 
                input_dev->id.product = mode;
627 
                input_dev->id.version = 0x0100;
628 
 
629 
                input_set_drvdata(input_dev, db9);
630 
 
631 
                input_dev->open = db9_open;
632 
                input_dev->close = db9_close;
633 
 
634 
                input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
635 
                for (j = 0; j < db9_mode->n_buttons; j++)
636 
                        set_bit(db9_mode->buttons[j], input_dev->keybit);
637 
                for (j = 0; j < db9_mode->n_axis; j++) {
638 
                        if (j < 2)
639 
                                input_set_abs_params(input_dev, db9_abs[j], -1, 1, 0, 0);
640 
                        else
641 
                                input_set_abs_params(input_dev, db9_abs[j], 1, 255, 0, 0);
642 
                }
643 
 
644 
                err = input_register_device(input_dev);
645 
                if (err)
646 
                        goto err_free_dev;
647 
        }
648 
 
649 
        parport_put_port(pp);
650 
        return db9;
651 
 
652 
 err_free_dev:
653 
        input_free_device(db9->dev[i]);
654 
 err_unreg_devs:
655 
        while (--i >= 0)
656 
                input_unregister_device(db9->dev[i]);
657 
        kfree(db9);
658 
 err_unreg_pardev:
659 
        parport_unregister_device(pd);
660 
 err_put_pp:
661 
        parport_put_port(pp);
662 
 err_out:
663 
        return ERR_PTR(err);
664 
}
665 
 
666 
static void db9_remove(struct db9 *db9)
667 
{
668 
        int i;
669 
 
670 
        for (i = 0; i < min(db9_modes[db9->mode].n_pads, DB9_MAX_DEVICES); i++)
671 
                input_unregister_device(db9->dev[i]);
672 
        parport_unregister_device(db9->pd);
673 
        kfree(db9);
674 
}
675 
 
676 
static int __init db9_init(void)
677 
{
678 
        int i;
679 
        int have_dev = 0;
680 
        int err = 0;
681 
 
682 
        for (i = 0; i < DB9_MAX_PORTS; i++) {
683 
                if (db9_cfg[i].nargs == 0 || db9_cfg[i].args[DB9_ARG_PARPORT] < 0)
684 
                        continue;
685 
 
686 
                if (db9_cfg[i].nargs < 2) {
687 
                        printk(KERN_ERR "db9.c: Device type must be specified.\n");
688 
                        err = -EINVAL;
689 
                        break;
690 
                }
691 
 
692 
                db9_base[i] = db9_probe(db9_cfg[i].args[DB9_ARG_PARPORT],
693 
                                        db9_cfg[i].args[DB9_ARG_MODE]);
694 
                if (IS_ERR(db9_base[i])) {
695 
                        err = PTR_ERR(db9_base[i]);
696 
                        break;
697 
                }
698 
 
699 
                have_dev = 1;
700 
        }
701 
 
702 
        if (err) {
703 
                while (--i >= 0)
704 
                        if (db9_base[i])
705 
                                db9_remove(db9_base[i]);
706 
                return err;
707 
        }
708 
 
709 
        return have_dev ? 0 : -ENODEV;
710 
}
711 
 
712 
static void __exit db9_exit(void)
713 
{
714 
        int i;
715 
 
716 
        for (i = 0; i < DB9_MAX_PORTS; i++)
717 
                if (db9_base[i])
718 
                        db9_remove(db9_base[i]);
719 
}
720 
 
721 
module_init(db9_init);
722 
module_exit(db9_exit);

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