1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Copyright (c) 1999-2001 Vojtech Pavlik |
4 | * |
5 | * Based on the work of: |
6 | * Andree Borrmann Mats Sjövall |
7 | */ |
8 | |
9 | /* |
10 | * Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver for Linux |
11 | */ |
12 | |
13 | #include <linux/kernel.h> |
14 | #include <linux/module.h> |
15 | #include <linux/delay.h> |
16 | #include <linux/init.h> |
17 | #include <linux/parport.h> |
18 | #include <linux/input.h> |
19 | #include <linux/mutex.h> |
20 | #include <linux/slab.h> |
21 | |
22 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>" ); |
23 | MODULE_DESCRIPTION("Atari, Amstrad, Commodore, Amiga, Sega, etc. joystick driver" ); |
24 | MODULE_LICENSE("GPL" ); |
25 | |
26 | struct db9_config { |
27 | int args[2]; |
28 | unsigned int nargs; |
29 | }; |
30 | |
31 | #define DB9_MAX_PORTS 3 |
32 | static struct db9_config db9_cfg[DB9_MAX_PORTS]; |
33 | |
34 | module_param_array_named(dev, db9_cfg[0].args, int, &db9_cfg[0].nargs, 0); |
35 | MODULE_PARM_DESC(dev, "Describes first attached device (<parport#>,<type>)" ); |
36 | module_param_array_named(dev2, db9_cfg[1].args, int, &db9_cfg[1].nargs, 0); |
37 | MODULE_PARM_DESC(dev2, "Describes second attached device (<parport#>,<type>)" ); |
38 | module_param_array_named(dev3, db9_cfg[2].args, int, &db9_cfg[2].nargs, 0); |
39 | MODULE_PARM_DESC(dev3, "Describes third attached device (<parport#>,<type>)" ); |
40 | |
41 | #define DB9_ARG_PARPORT 0 |
42 | #define DB9_ARG_MODE 1 |
43 | |
44 | #define DB9_MULTI_STICK 0x01 |
45 | #define DB9_MULTI2_STICK 0x02 |
46 | #define DB9_GENESIS_PAD 0x03 |
47 | #define DB9_GENESIS5_PAD 0x05 |
48 | #define DB9_GENESIS6_PAD 0x06 |
49 | #define DB9_SATURN_PAD 0x07 |
50 | #define DB9_MULTI_0802 0x08 |
51 | #define DB9_MULTI_0802_2 0x09 |
52 | #define DB9_CD32_PAD 0x0A |
53 | #define DB9_SATURN_DPP 0x0B |
54 | #define DB9_SATURN_DPP_2 0x0C |
55 | #define DB9_MAX_PAD 0x0D |
56 | |
57 | #define DB9_UP 0x01 |
58 | #define DB9_DOWN 0x02 |
59 | #define DB9_LEFT 0x04 |
60 | #define DB9_RIGHT 0x08 |
61 | #define DB9_FIRE1 0x10 |
62 | #define DB9_FIRE2 0x20 |
63 | #define DB9_FIRE3 0x40 |
64 | #define DB9_FIRE4 0x80 |
65 | |
66 | #define DB9_NORMAL 0x0a |
67 | #define DB9_NOSELECT 0x08 |
68 | |
69 | #define DB9_GENESIS6_DELAY 14 |
70 | #define DB9_REFRESH_TIME HZ/100 |
71 | |
72 | #define DB9_MAX_DEVICES 2 |
73 | |
74 | struct db9_mode_data { |
75 | const char *name; |
76 | const short *buttons; |
77 | int n_buttons; |
78 | int n_pads; |
79 | int n_axis; |
80 | int bidirectional; |
81 | int reverse; |
82 | }; |
83 | |
84 | struct db9 { |
85 | struct input_dev *dev[DB9_MAX_DEVICES]; |
86 | struct timer_list timer; |
87 | struct pardevice *pd; |
88 | int mode; |
89 | int used; |
90 | int parportno; |
91 | struct mutex mutex; |
92 | char phys[DB9_MAX_DEVICES][32]; |
93 | }; |
94 | |
95 | static struct db9 *db9_base[3]; |
96 | |
97 | static const short db9_multi_btn[] = { BTN_TRIGGER, BTN_THUMB }; |
98 | static const short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE }; |
99 | static const short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START }; |
100 | 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 }; |
101 | |
102 | static const struct db9_mode_data db9_modes[] = { |
103 | { NULL, NULL, 0, 0, 0, 0, 0 }, |
104 | { "Multisystem joystick" , db9_multi_btn, 1, 1, 2, 1, 1 }, |
105 | { "Multisystem joystick (2 fire)" , db9_multi_btn, 2, 1, 2, 1, 1 }, |
106 | { "Genesis pad" , db9_genesis_btn, 4, 1, 2, 1, 1 }, |
107 | { NULL, NULL, 0, 0, 0, 0, 0 }, |
108 | { "Genesis 5 pad" , db9_genesis_btn, 6, 1, 2, 1, 1 }, |
109 | { "Genesis 6 pad" , db9_genesis_btn, 8, 1, 2, 1, 1 }, |
110 | { "Saturn pad" , db9_cd32_btn, 9, 6, 7, 0, 1 }, |
111 | { "Multisystem (0.8.0.2) joystick" , db9_multi_btn, 1, 1, 2, 1, 1 }, |
112 | { "Multisystem (0.8.0.2-dual) joystick" , db9_multi_btn, 1, 2, 2, 1, 1 }, |
113 | { "Amiga CD-32 pad" , db9_cd32_btn, 7, 1, 2, 1, 1 }, |
114 | { "Saturn dpp" , db9_cd32_btn, 9, 6, 7, 0, 0 }, |
115 | { "Saturn dpp dual" , db9_cd32_btn, 9, 12, 7, 0, 0 }, |
116 | }; |
117 | |
118 | /* |
119 | * Saturn controllers |
120 | */ |
121 | #define DB9_SATURN_DELAY 300 |
122 | static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 }; |
123 | static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 }; |
124 | |
125 | /* |
126 | * db9_saturn_write_sub() writes 2 bit data. |
127 | */ |
128 | static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub) |
129 | { |
130 | unsigned char c; |
131 | |
132 | switch (type) { |
133 | case 1: /* DPP1 */ |
134 | c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data; |
135 | parport_write_data(port, c); |
136 | break; |
137 | case 2: /* DPP2 */ |
138 | c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03; |
139 | parport_write_data(port, c); |
140 | break; |
141 | case 0: /* DB9 */ |
142 | c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered; |
143 | parport_write_control(port, c); |
144 | break; |
145 | } |
146 | } |
147 | |
148 | /* |
149 | * gc_saturn_read_sub() reads 4 bit data. |
150 | */ |
151 | static unsigned char db9_saturn_read_sub(struct parport *port, int type) |
152 | { |
153 | unsigned char data; |
154 | |
155 | if (type) { |
156 | /* DPP */ |
157 | data = parport_read_status(port) ^ 0x80; |
158 | return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0) |
159 | | (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0); |
160 | } else { |
161 | /* DB9 */ |
162 | data = parport_read_data(port) & 0x0f; |
163 | return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0) |
164 | | (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0); |
165 | } |
166 | } |
167 | |
168 | /* |
169 | * db9_saturn_read_analog() sends clock and reads 8 bit data. |
170 | */ |
171 | static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered) |
172 | { |
173 | unsigned char data; |
174 | |
175 | db9_saturn_write_sub(port, type, data: 0, powered, pwr_sub: 0); |
176 | udelay(DB9_SATURN_DELAY); |
177 | data = db9_saturn_read_sub(port, type) << 4; |
178 | db9_saturn_write_sub(port, type, data: 2, powered, pwr_sub: 0); |
179 | udelay(DB9_SATURN_DELAY); |
180 | data |= db9_saturn_read_sub(port, type); |
181 | return data; |
182 | } |
183 | |
184 | /* |
185 | * db9_saturn_read_packet() reads whole saturn packet at connector |
186 | * and returns device identifier code. |
187 | */ |
188 | static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered) |
189 | { |
190 | int i, j; |
191 | unsigned char tmp; |
192 | |
193 | db9_saturn_write_sub(port, type, data: 3, powered, pwr_sub: 0); |
194 | data[0] = db9_saturn_read_sub(port, type); |
195 | switch (data[0] & 0x0f) { |
196 | case 0xf: |
197 | /* 1111 no pad */ |
198 | return data[0] = 0xff; |
199 | case 0x4: case 0x4 | 0x8: |
200 | /* ?100 : digital controller */ |
201 | db9_saturn_write_sub(port, type, data: 0, powered, pwr_sub: 1); |
202 | data[2] = db9_saturn_read_sub(port, type) << 4; |
203 | db9_saturn_write_sub(port, type, data: 2, powered, pwr_sub: 1); |
204 | data[1] = db9_saturn_read_sub(port, type) << 4; |
205 | db9_saturn_write_sub(port, type, data: 1, powered, pwr_sub: 1); |
206 | data[1] |= db9_saturn_read_sub(port, type); |
207 | db9_saturn_write_sub(port, type, data: 3, powered, pwr_sub: 1); |
208 | /* data[2] |= db9_saturn_read_sub(port, type); */ |
209 | data[2] |= data[0]; |
210 | return data[0] = 0x02; |
211 | case 0x1: |
212 | /* 0001 : analog controller or multitap */ |
213 | db9_saturn_write_sub(port, type, data: 2, powered, pwr_sub: 0); |
214 | udelay(DB9_SATURN_DELAY); |
215 | data[0] = db9_saturn_read_analog(port, type, powered); |
216 | if (data[0] != 0x41) { |
217 | /* read analog controller */ |
218 | for (i = 0; i < (data[0] & 0x0f); i++) |
219 | data[i + 1] = db9_saturn_read_analog(port, type, powered); |
220 | db9_saturn_write_sub(port, type, data: 3, powered, pwr_sub: 0); |
221 | return data[0]; |
222 | } else { |
223 | /* read multitap */ |
224 | if (db9_saturn_read_analog(port, type, powered) != 0x60) |
225 | return data[0] = 0xff; |
226 | for (i = 0; i < 60; i += 10) { |
227 | data[i] = db9_saturn_read_analog(port, type, powered); |
228 | if (data[i] != 0xff) |
229 | /* read each pad */ |
230 | for (j = 0; j < (data[i] & 0x0f); j++) |
231 | data[i + j + 1] = db9_saturn_read_analog(port, type, powered); |
232 | } |
233 | db9_saturn_write_sub(port, type, data: 3, powered, pwr_sub: 0); |
234 | return 0x41; |
235 | } |
236 | case 0x0: |
237 | /* 0000 : mouse */ |
238 | db9_saturn_write_sub(port, type, data: 2, powered, pwr_sub: 0); |
239 | udelay(DB9_SATURN_DELAY); |
240 | tmp = db9_saturn_read_analog(port, type, powered); |
241 | if (tmp == 0xff) { |
242 | for (i = 0; i < 3; i++) |
243 | data[i + 1] = db9_saturn_read_analog(port, type, powered); |
244 | db9_saturn_write_sub(port, type, data: 3, powered, pwr_sub: 0); |
245 | return data[0] = 0xe3; |
246 | } |
247 | fallthrough; |
248 | default: |
249 | return data[0]; |
250 | } |
251 | } |
252 | |
253 | /* |
254 | * db9_saturn_report() analyzes packet and reports. |
255 | */ |
256 | static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *devs[], int n, int max_pads) |
257 | { |
258 | struct input_dev *dev; |
259 | int tmp, i, j; |
260 | |
261 | tmp = (id == 0x41) ? 60 : 10; |
262 | for (j = 0; j < tmp && n < max_pads; j += 10, n++) { |
263 | dev = devs[n]; |
264 | switch (data[j]) { |
265 | case 0x16: /* multi controller (analog 4 axis) */ |
266 | input_report_abs(dev, code: db9_abs[5], value: data[j + 6]); |
267 | fallthrough; |
268 | case 0x15: /* mission stick (analog 3 axis) */ |
269 | input_report_abs(dev, code: db9_abs[3], value: data[j + 4]); |
270 | input_report_abs(dev, code: db9_abs[4], value: data[j + 5]); |
271 | fallthrough; |
272 | case 0x13: /* racing controller (analog 1 axis) */ |
273 | input_report_abs(dev, code: db9_abs[2], value: data[j + 3]); |
274 | fallthrough; |
275 | case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */ |
276 | case 0x02: /* digital pad (digital 2 axis + buttons) */ |
277 | input_report_abs(dev, code: db9_abs[0], value: !(data[j + 1] & 128) - !(data[j + 1] & 64)); |
278 | input_report_abs(dev, code: db9_abs[1], value: !(data[j + 1] & 32) - !(data[j + 1] & 16)); |
279 | for (i = 0; i < 9; i++) |
280 | input_report_key(dev, code: db9_cd32_btn[i], value: ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]); |
281 | break; |
282 | case 0x19: /* mission stick x2 (analog 6 axis + buttons) */ |
283 | input_report_abs(dev, code: db9_abs[0], value: !(data[j + 1] & 128) - !(data[j + 1] & 64)); |
284 | input_report_abs(dev, code: db9_abs[1], value: !(data[j + 1] & 32) - !(data[j + 1] & 16)); |
285 | for (i = 0; i < 9; i++) |
286 | input_report_key(dev, code: db9_cd32_btn[i], value: ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]); |
287 | input_report_abs(dev, code: db9_abs[2], value: data[j + 3]); |
288 | input_report_abs(dev, code: db9_abs[3], value: data[j + 4]); |
289 | input_report_abs(dev, code: db9_abs[4], value: data[j + 5]); |
290 | /* |
291 | input_report_abs(dev, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1)); |
292 | input_report_abs(dev, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1)); |
293 | */ |
294 | input_report_abs(dev, code: db9_abs[6], value: data[j + 7]); |
295 | input_report_abs(dev, code: db9_abs[7], value: data[j + 8]); |
296 | input_report_abs(dev, code: db9_abs[5], value: data[j + 9]); |
297 | break; |
298 | case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */ |
299 | input_report_key(dev, BTN_A, value: data[j + 3] & 0x80); |
300 | input_report_abs(dev, code: db9_abs[2], value: data[j + 3] & 0x7f); |
301 | break; |
302 | case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */ |
303 | input_report_key(dev, BTN_START, value: data[j + 1] & 0x08); |
304 | input_report_key(dev, BTN_A, value: data[j + 1] & 0x04); |
305 | input_report_key(dev, BTN_C, value: data[j + 1] & 0x02); |
306 | input_report_key(dev, BTN_B, value: data[j + 1] & 0x01); |
307 | input_report_abs(dev, code: db9_abs[2], value: data[j + 2] ^ 0x80); |
308 | input_report_abs(dev, code: db9_abs[3], value: (0xff-(data[j + 3] ^ 0x80))+1); /* */ |
309 | break; |
310 | case 0xff: |
311 | default: /* no pad */ |
312 | input_report_abs(dev, code: db9_abs[0], value: 0); |
313 | input_report_abs(dev, code: db9_abs[1], value: 0); |
314 | for (i = 0; i < 9; i++) |
315 | input_report_key(dev, code: db9_cd32_btn[i], value: 0); |
316 | break; |
317 | } |
318 | } |
319 | return n; |
320 | } |
321 | |
322 | static int db9_saturn(int mode, struct parport *port, struct input_dev *devs[]) |
323 | { |
324 | unsigned char id, data[60]; |
325 | int type, n, max_pads; |
326 | int tmp, i; |
327 | |
328 | switch (mode) { |
329 | case DB9_SATURN_PAD: |
330 | type = 0; |
331 | n = 1; |
332 | break; |
333 | case DB9_SATURN_DPP: |
334 | type = 1; |
335 | n = 1; |
336 | break; |
337 | case DB9_SATURN_DPP_2: |
338 | type = 1; |
339 | n = 2; |
340 | break; |
341 | default: |
342 | return -1; |
343 | } |
344 | max_pads = min(db9_modes[mode].n_pads, DB9_MAX_DEVICES); |
345 | for (tmp = 0, i = 0; i < n; i++) { |
346 | id = db9_saturn_read_packet(port, data, type: type + i, powered: 1); |
347 | tmp = db9_saturn_report(id, data, devs, n: tmp, max_pads); |
348 | } |
349 | return 0; |
350 | } |
351 | |
352 | static void db9_timer(struct timer_list *t) |
353 | { |
354 | struct db9 *db9 = from_timer(db9, t, timer); |
355 | struct parport *port = db9->pd->port; |
356 | struct input_dev *dev = db9->dev[0]; |
357 | struct input_dev *dev2 = db9->dev[1]; |
358 | int data, i; |
359 | |
360 | switch (db9->mode) { |
361 | case DB9_MULTI_0802_2: |
362 | |
363 | data = parport_read_data(port) >> 3; |
364 | |
365 | input_report_abs(dev: dev2, ABS_X, value: (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
366 | input_report_abs(dev: dev2, ABS_Y, value: (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
367 | input_report_key(dev: dev2, BTN_TRIGGER, value: ~data & DB9_FIRE1); |
368 | fallthrough; |
369 | |
370 | case DB9_MULTI_0802: |
371 | |
372 | data = parport_read_status(port) >> 3; |
373 | |
374 | input_report_abs(dev, ABS_X, value: (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
375 | input_report_abs(dev, ABS_Y, value: (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
376 | input_report_key(dev, BTN_TRIGGER, value: data & DB9_FIRE1); |
377 | break; |
378 | |
379 | case DB9_MULTI_STICK: |
380 | |
381 | data = parport_read_data(port); |
382 | |
383 | input_report_abs(dev, ABS_X, value: (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
384 | input_report_abs(dev, ABS_Y, value: (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
385 | input_report_key(dev, BTN_TRIGGER, value: ~data & DB9_FIRE1); |
386 | break; |
387 | |
388 | case DB9_MULTI2_STICK: |
389 | |
390 | data = parport_read_data(port); |
391 | |
392 | input_report_abs(dev, ABS_X, value: (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
393 | input_report_abs(dev, ABS_Y, value: (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
394 | input_report_key(dev, BTN_TRIGGER, value: ~data & DB9_FIRE1); |
395 | input_report_key(dev, BTN_THUMB, value: ~data & DB9_FIRE2); |
396 | break; |
397 | |
398 | case DB9_GENESIS_PAD: |
399 | |
400 | parport_write_control(port, DB9_NOSELECT); |
401 | data = parport_read_data(port); |
402 | |
403 | input_report_abs(dev, ABS_X, value: (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
404 | input_report_abs(dev, ABS_Y, value: (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
405 | input_report_key(dev, BTN_B, value: ~data & DB9_FIRE1); |
406 | input_report_key(dev, BTN_C, value: ~data & DB9_FIRE2); |
407 | |
408 | parport_write_control(port, DB9_NORMAL); |
409 | data = parport_read_data(port); |
410 | |
411 | input_report_key(dev, BTN_A, value: ~data & DB9_FIRE1); |
412 | input_report_key(dev, BTN_START, value: ~data & DB9_FIRE2); |
413 | break; |
414 | |
415 | case DB9_GENESIS5_PAD: |
416 | |
417 | parport_write_control(port, DB9_NOSELECT); |
418 | data = parport_read_data(port); |
419 | |
420 | input_report_abs(dev, ABS_X, value: (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
421 | input_report_abs(dev, ABS_Y, value: (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
422 | input_report_key(dev, BTN_B, value: ~data & DB9_FIRE1); |
423 | input_report_key(dev, BTN_C, value: ~data & DB9_FIRE2); |
424 | |
425 | parport_write_control(port, DB9_NORMAL); |
426 | data = parport_read_data(port); |
427 | |
428 | input_report_key(dev, BTN_A, value: ~data & DB9_FIRE1); |
429 | input_report_key(dev, BTN_X, value: ~data & DB9_FIRE2); |
430 | input_report_key(dev, BTN_Y, value: ~data & DB9_LEFT); |
431 | input_report_key(dev, BTN_START, value: ~data & DB9_RIGHT); |
432 | break; |
433 | |
434 | case DB9_GENESIS6_PAD: |
435 | |
436 | parport_write_control(port, DB9_NOSELECT); /* 1 */ |
437 | udelay(DB9_GENESIS6_DELAY); |
438 | data = parport_read_data(port); |
439 | |
440 | input_report_abs(dev, ABS_X, value: (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
441 | input_report_abs(dev, ABS_Y, value: (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
442 | input_report_key(dev, BTN_B, value: ~data & DB9_FIRE1); |
443 | input_report_key(dev, BTN_C, value: ~data & DB9_FIRE2); |
444 | |
445 | parport_write_control(port, DB9_NORMAL); |
446 | udelay(DB9_GENESIS6_DELAY); |
447 | data = parport_read_data(port); |
448 | |
449 | input_report_key(dev, BTN_A, value: ~data & DB9_FIRE1); |
450 | input_report_key(dev, BTN_START, value: ~data & DB9_FIRE2); |
451 | |
452 | parport_write_control(port, DB9_NOSELECT); /* 2 */ |
453 | udelay(DB9_GENESIS6_DELAY); |
454 | parport_write_control(port, DB9_NORMAL); |
455 | udelay(DB9_GENESIS6_DELAY); |
456 | parport_write_control(port, DB9_NOSELECT); /* 3 */ |
457 | udelay(DB9_GENESIS6_DELAY); |
458 | data=parport_read_data(port); |
459 | |
460 | input_report_key(dev, BTN_X, value: ~data & DB9_LEFT); |
461 | input_report_key(dev, BTN_Y, value: ~data & DB9_DOWN); |
462 | input_report_key(dev, BTN_Z, value: ~data & DB9_UP); |
463 | input_report_key(dev, BTN_MODE, value: ~data & DB9_RIGHT); |
464 | |
465 | parport_write_control(port, DB9_NORMAL); |
466 | udelay(DB9_GENESIS6_DELAY); |
467 | parport_write_control(port, DB9_NOSELECT); /* 4 */ |
468 | udelay(DB9_GENESIS6_DELAY); |
469 | parport_write_control(port, DB9_NORMAL); |
470 | break; |
471 | |
472 | case DB9_SATURN_PAD: |
473 | case DB9_SATURN_DPP: |
474 | case DB9_SATURN_DPP_2: |
475 | |
476 | db9_saturn(mode: db9->mode, port, devs: db9->dev); |
477 | break; |
478 | |
479 | case DB9_CD32_PAD: |
480 | |
481 | data = parport_read_data(port); |
482 | |
483 | input_report_abs(dev, ABS_X, value: (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1)); |
484 | input_report_abs(dev, ABS_Y, value: (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1)); |
485 | |
486 | parport_write_control(port, 0x0a); |
487 | |
488 | for (i = 0; i < 7; i++) { |
489 | data = parport_read_data(port); |
490 | parport_write_control(port, 0x02); |
491 | parport_write_control(port, 0x0a); |
492 | input_report_key(dev, code: db9_cd32_btn[i], value: ~data & DB9_FIRE2); |
493 | } |
494 | |
495 | parport_write_control(port, 0x00); |
496 | break; |
497 | } |
498 | |
499 | input_sync(dev); |
500 | |
501 | mod_timer(timer: &db9->timer, expires: jiffies + DB9_REFRESH_TIME); |
502 | } |
503 | |
504 | static int db9_open(struct input_dev *dev) |
505 | { |
506 | struct db9 *db9 = input_get_drvdata(dev); |
507 | struct parport *port = db9->pd->port; |
508 | int err; |
509 | |
510 | err = mutex_lock_interruptible(&db9->mutex); |
511 | if (err) |
512 | return err; |
513 | |
514 | if (!db9->used++) { |
515 | parport_claim(dev: db9->pd); |
516 | parport_write_data(port, 0xff); |
517 | if (db9_modes[db9->mode].reverse) { |
518 | parport_data_reverse(port); |
519 | parport_write_control(port, DB9_NORMAL); |
520 | } |
521 | mod_timer(timer: &db9->timer, expires: jiffies + DB9_REFRESH_TIME); |
522 | } |
523 | |
524 | mutex_unlock(lock: &db9->mutex); |
525 | return 0; |
526 | } |
527 | |
528 | static void db9_close(struct input_dev *dev) |
529 | { |
530 | struct db9 *db9 = input_get_drvdata(dev); |
531 | struct parport *port = db9->pd->port; |
532 | |
533 | mutex_lock(&db9->mutex); |
534 | if (!--db9->used) { |
535 | del_timer_sync(timer: &db9->timer); |
536 | parport_write_control(port, 0x00); |
537 | parport_data_forward(port); |
538 | parport_release(dev: db9->pd); |
539 | } |
540 | mutex_unlock(lock: &db9->mutex); |
541 | } |
542 | |
543 | static void db9_attach(struct parport *pp) |
544 | { |
545 | struct db9 *db9; |
546 | const struct db9_mode_data *db9_mode; |
547 | struct pardevice *pd; |
548 | struct input_dev *input_dev; |
549 | int i, j, port_idx; |
550 | int mode; |
551 | struct pardev_cb db9_parport_cb; |
552 | |
553 | for (port_idx = 0; port_idx < DB9_MAX_PORTS; port_idx++) { |
554 | if (db9_cfg[port_idx].nargs == 0 || |
555 | db9_cfg[port_idx].args[DB9_ARG_PARPORT] < 0) |
556 | continue; |
557 | |
558 | if (db9_cfg[port_idx].args[DB9_ARG_PARPORT] == pp->number) |
559 | break; |
560 | } |
561 | |
562 | if (port_idx == DB9_MAX_PORTS) { |
563 | pr_debug("Not using parport%d.\n" , pp->number); |
564 | return; |
565 | } |
566 | |
567 | mode = db9_cfg[port_idx].args[DB9_ARG_MODE]; |
568 | |
569 | if (mode < 1 || mode >= DB9_MAX_PAD || !db9_modes[mode].n_buttons) { |
570 | printk(KERN_ERR "db9.c: Bad device type %d\n" , mode); |
571 | return; |
572 | } |
573 | |
574 | db9_mode = &db9_modes[mode]; |
575 | |
576 | if (db9_mode->bidirectional && !(pp->modes & PARPORT_MODE_TRISTATE)) { |
577 | printk(KERN_ERR "db9.c: specified parport is not bidirectional\n" ); |
578 | return; |
579 | } |
580 | |
581 | memset(&db9_parport_cb, 0, sizeof(db9_parport_cb)); |
582 | db9_parport_cb.flags = PARPORT_FLAG_EXCL; |
583 | |
584 | pd = parport_register_dev_model(port: pp, name: "db9" , par_dev_cb: &db9_parport_cb, cnt: port_idx); |
585 | if (!pd) { |
586 | printk(KERN_ERR "db9.c: parport busy already - lp.o loaded?\n" ); |
587 | return; |
588 | } |
589 | |
590 | db9 = kzalloc(size: sizeof(struct db9), GFP_KERNEL); |
591 | if (!db9) |
592 | goto err_unreg_pardev; |
593 | |
594 | mutex_init(&db9->mutex); |
595 | db9->pd = pd; |
596 | db9->mode = mode; |
597 | db9->parportno = pp->number; |
598 | timer_setup(&db9->timer, db9_timer, 0); |
599 | |
600 | for (i = 0; i < (min(db9_mode->n_pads, DB9_MAX_DEVICES)); i++) { |
601 | |
602 | db9->dev[i] = input_dev = input_allocate_device(); |
603 | if (!input_dev) { |
604 | printk(KERN_ERR "db9.c: Not enough memory for input device\n" ); |
605 | goto err_unreg_devs; |
606 | } |
607 | |
608 | snprintf(buf: db9->phys[i], size: sizeof(db9->phys[i]), |
609 | fmt: "%s/input%d" , db9->pd->port->name, i); |
610 | |
611 | input_dev->name = db9_mode->name; |
612 | input_dev->phys = db9->phys[i]; |
613 | input_dev->id.bustype = BUS_PARPORT; |
614 | input_dev->id.vendor = 0x0002; |
615 | input_dev->id.product = mode; |
616 | input_dev->id.version = 0x0100; |
617 | |
618 | input_set_drvdata(dev: input_dev, data: db9); |
619 | |
620 | input_dev->open = db9_open; |
621 | input_dev->close = db9_close; |
622 | |
623 | input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); |
624 | for (j = 0; j < db9_mode->n_buttons; j++) |
625 | set_bit(nr: db9_mode->buttons[j], addr: input_dev->keybit); |
626 | for (j = 0; j < db9_mode->n_axis; j++) { |
627 | if (j < 2) |
628 | input_set_abs_params(dev: input_dev, axis: db9_abs[j], min: -1, max: 1, fuzz: 0, flat: 0); |
629 | else |
630 | input_set_abs_params(dev: input_dev, axis: db9_abs[j], min: 1, max: 255, fuzz: 0, flat: 0); |
631 | } |
632 | |
633 | if (input_register_device(input_dev)) |
634 | goto err_free_dev; |
635 | } |
636 | |
637 | db9_base[port_idx] = db9; |
638 | return; |
639 | |
640 | err_free_dev: |
641 | input_free_device(dev: db9->dev[i]); |
642 | err_unreg_devs: |
643 | while (--i >= 0) |
644 | input_unregister_device(db9->dev[i]); |
645 | kfree(objp: db9); |
646 | err_unreg_pardev: |
647 | parport_unregister_device(dev: pd); |
648 | } |
649 | |
650 | static void db9_detach(struct parport *port) |
651 | { |
652 | int i; |
653 | struct db9 *db9; |
654 | |
655 | for (i = 0; i < DB9_MAX_PORTS; i++) { |
656 | if (db9_base[i] && db9_base[i]->parportno == port->number) |
657 | break; |
658 | } |
659 | |
660 | if (i == DB9_MAX_PORTS) |
661 | return; |
662 | |
663 | db9 = db9_base[i]; |
664 | db9_base[i] = NULL; |
665 | |
666 | for (i = 0; i < min(db9_modes[db9->mode].n_pads, DB9_MAX_DEVICES); i++) |
667 | input_unregister_device(db9->dev[i]); |
668 | parport_unregister_device(dev: db9->pd); |
669 | kfree(objp: db9); |
670 | } |
671 | |
672 | static struct parport_driver db9_parport_driver = { |
673 | .name = "db9" , |
674 | .match_port = db9_attach, |
675 | .detach = db9_detach, |
676 | .devmodel = true, |
677 | }; |
678 | |
679 | static int __init db9_init(void) |
680 | { |
681 | int i; |
682 | int have_dev = 0; |
683 | |
684 | for (i = 0; i < DB9_MAX_PORTS; i++) { |
685 | if (db9_cfg[i].nargs == 0 || db9_cfg[i].args[DB9_ARG_PARPORT] < 0) |
686 | continue; |
687 | |
688 | if (db9_cfg[i].nargs < 2) { |
689 | printk(KERN_ERR "db9.c: Device type must be specified.\n" ); |
690 | return -EINVAL; |
691 | } |
692 | |
693 | have_dev = 1; |
694 | } |
695 | |
696 | if (!have_dev) |
697 | return -ENODEV; |
698 | |
699 | return parport_register_driver(&db9_parport_driver); |
700 | } |
701 | |
702 | static void __exit db9_exit(void) |
703 | { |
704 | parport_unregister_driver(&db9_parport_driver); |
705 | } |
706 | |
707 | module_init(db9_init); |
708 | module_exit(db9_exit); |
709 | |