Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Copyright (c) 2001 Vojtech Pavlik |
3 | * | |
4 | * Based on the work of: | |
5 | * Toby Deshane | |
6 | */ | |
7 | ||
8 | /* | |
9 | * InterAct digital gamepad/joystick driver for Linux | |
10 | */ | |
11 | ||
12 | /* | |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of the GNU General Public License as published by | |
15 | * the Free Software Foundation; either version 2 of the License, or | |
16 | * (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
26 | * | |
27 | * Should you need to contact me, the author, you can do so either by | |
28 | * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: | |
29 | * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic | |
30 | */ | |
31 | ||
32 | #include <linux/kernel.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/module.h> | |
35 | #include <linux/delay.h> | |
1da177e4 LT |
36 | #include <linux/gameport.h> |
37 | #include <linux/input.h> | |
4e57b681 | 38 | #include <linux/jiffies.h> |
1da177e4 LT |
39 | |
40 | #define DRIVER_DESC "InterAct digital joystick driver" | |
41 | ||
42 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); | |
43 | MODULE_DESCRIPTION(DRIVER_DESC); | |
44 | MODULE_LICENSE("GPL"); | |
45 | ||
46 | #define INTERACT_MAX_START 600 /* 400 us */ | |
47 | #define INTERACT_MAX_STROBE 60 /* 40 us */ | |
48 | #define INTERACT_MAX_LENGTH 32 /* 32 bits */ | |
49 | ||
50 | #define INTERACT_TYPE_HHFX 0 /* HammerHead/FX */ | |
51 | #define INTERACT_TYPE_PP8D 1 /* ProPad 8 */ | |
52 | ||
53 | struct interact { | |
54 | struct gameport *gameport; | |
17dd3f0f | 55 | struct input_dev *dev; |
1da177e4 LT |
56 | int bads; |
57 | int reads; | |
58 | unsigned char type; | |
59 | unsigned char length; | |
60 | char phys[32]; | |
61 | }; | |
62 | ||
63 | static short interact_abs_hhfx[] = | |
64 | { ABS_RX, ABS_RY, ABS_X, ABS_Y, ABS_HAT0X, ABS_HAT0Y, -1 }; | |
65 | static short interact_abs_pp8d[] = | |
66 | { ABS_X, ABS_Y, -1 }; | |
67 | ||
68 | static short interact_btn_hhfx[] = | |
69 | { BTN_TR, BTN_X, BTN_Y, BTN_Z, BTN_A, BTN_B, BTN_C, BTN_TL, BTN_TL2, BTN_TR2, BTN_MODE, BTN_SELECT, -1 }; | |
70 | static short interact_btn_pp8d[] = | |
71 | { BTN_C, BTN_TL, BTN_TR, BTN_A, BTN_B, BTN_Y, BTN_Z, BTN_X, -1 }; | |
72 | ||
73 | struct interact_type { | |
74 | int id; | |
75 | short *abs; | |
76 | short *btn; | |
77 | char *name; | |
78 | unsigned char length; | |
79 | unsigned char b8; | |
80 | }; | |
81 | ||
82 | static struct interact_type interact_type[] = { | |
83 | { 0x6202, interact_abs_hhfx, interact_btn_hhfx, "InterAct HammerHead/FX", 32, 4 }, | |
84 | { 0x53f8, interact_abs_pp8d, interact_btn_pp8d, "InterAct ProPad 8 Digital", 16, 0 }, | |
85 | { 0 }}; | |
86 | ||
87 | /* | |
88 | * interact_read_packet() reads and InterAct joystick data. | |
89 | */ | |
90 | ||
91 | static int interact_read_packet(struct gameport *gameport, int length, u32 *data) | |
92 | { | |
93 | unsigned long flags; | |
94 | unsigned char u, v; | |
95 | unsigned int t, s; | |
96 | int i; | |
97 | ||
98 | i = 0; | |
99 | data[0] = data[1] = data[2] = 0; | |
100 | t = gameport_time(gameport, INTERACT_MAX_START); | |
101 | s = gameport_time(gameport, INTERACT_MAX_STROBE); | |
102 | ||
103 | local_irq_save(flags); | |
104 | gameport_trigger(gameport); | |
105 | v = gameport_read(gameport); | |
106 | ||
107 | while (t > 0 && i < length) { | |
108 | t--; | |
109 | u = v; v = gameport_read(gameport); | |
110 | if (v & ~u & 0x40) { | |
111 | data[0] = (data[0] << 1) | ((v >> 4) & 1); | |
112 | data[1] = (data[1] << 1) | ((v >> 5) & 1); | |
113 | data[2] = (data[2] << 1) | ((v >> 7) & 1); | |
114 | i++; | |
115 | t = s; | |
116 | } | |
117 | } | |
118 | ||
119 | local_irq_restore(flags); | |
120 | ||
121 | return i; | |
122 | } | |
123 | ||
124 | /* | |
125 | * interact_poll() reads and analyzes InterAct joystick data. | |
126 | */ | |
127 | ||
128 | static void interact_poll(struct gameport *gameport) | |
129 | { | |
130 | struct interact *interact = gameport_get_drvdata(gameport); | |
17dd3f0f | 131 | struct input_dev *dev = interact->dev; |
1da177e4 LT |
132 | u32 data[3]; |
133 | int i; | |
134 | ||
135 | interact->reads++; | |
136 | ||
137 | if (interact_read_packet(interact->gameport, interact->length, data) < interact->length) { | |
138 | interact->bads++; | |
139 | } else { | |
140 | ||
141 | for (i = 0; i < 3; i++) | |
142 | data[i] <<= INTERACT_MAX_LENGTH - interact->length; | |
143 | ||
144 | switch (interact->type) { | |
145 | ||
146 | case INTERACT_TYPE_HHFX: | |
147 | ||
148 | for (i = 0; i < 4; i++) | |
149 | input_report_abs(dev, interact_abs_hhfx[i], (data[i & 1] >> ((i >> 1) << 3)) & 0xff); | |
150 | ||
151 | for (i = 0; i < 2; i++) | |
152 | input_report_abs(dev, ABS_HAT0Y - i, | |
153 | ((data[1] >> ((i << 1) + 17)) & 1) - ((data[1] >> ((i << 1) + 16)) & 1)); | |
154 | ||
155 | for (i = 0; i < 8; i++) | |
156 | input_report_key(dev, interact_btn_hhfx[i], (data[0] >> (i + 16)) & 1); | |
157 | ||
158 | for (i = 0; i < 4; i++) | |
159 | input_report_key(dev, interact_btn_hhfx[i + 8], (data[1] >> (i + 20)) & 1); | |
160 | ||
161 | break; | |
162 | ||
163 | case INTERACT_TYPE_PP8D: | |
164 | ||
165 | for (i = 0; i < 2; i++) | |
166 | input_report_abs(dev, interact_abs_pp8d[i], | |
167 | ((data[0] >> ((i << 1) + 20)) & 1) - ((data[0] >> ((i << 1) + 21)) & 1)); | |
168 | ||
169 | for (i = 0; i < 8; i++) | |
170 | input_report_key(dev, interact_btn_pp8d[i], (data[1] >> (i + 16)) & 1); | |
171 | ||
172 | break; | |
173 | } | |
174 | } | |
175 | ||
176 | input_sync(dev); | |
177 | } | |
178 | ||
179 | /* | |
180 | * interact_open() is a callback from the input open routine. | |
181 | */ | |
182 | ||
183 | static int interact_open(struct input_dev *dev) | |
184 | { | |
8715c1cf | 185 | struct interact *interact = input_get_drvdata(dev); |
1da177e4 LT |
186 | |
187 | gameport_start_polling(interact->gameport); | |
188 | return 0; | |
189 | } | |
190 | ||
191 | /* | |
192 | * interact_close() is a callback from the input close routine. | |
193 | */ | |
194 | ||
195 | static void interact_close(struct input_dev *dev) | |
196 | { | |
8715c1cf | 197 | struct interact *interact = input_get_drvdata(dev); |
1da177e4 LT |
198 | |
199 | gameport_stop_polling(interact->gameport); | |
200 | } | |
201 | ||
202 | /* | |
203 | * interact_connect() probes for InterAct joysticks. | |
204 | */ | |
205 | ||
206 | static int interact_connect(struct gameport *gameport, struct gameport_driver *drv) | |
207 | { | |
208 | struct interact *interact; | |
17dd3f0f | 209 | struct input_dev *input_dev; |
1da177e4 LT |
210 | __u32 data[3]; |
211 | int i, t; | |
212 | int err; | |
213 | ||
17dd3f0f DT |
214 | interact = kzalloc(sizeof(struct interact), GFP_KERNEL); |
215 | input_dev = input_allocate_device(); | |
216 | if (!interact || !input_dev) { | |
217 | err = -ENOMEM; | |
218 | goto fail1; | |
219 | } | |
1da177e4 LT |
220 | |
221 | interact->gameport = gameport; | |
17dd3f0f | 222 | interact->dev = input_dev; |
1da177e4 LT |
223 | |
224 | gameport_set_drvdata(gameport, interact); | |
225 | ||
226 | err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW); | |
227 | if (err) | |
228 | goto fail1; | |
229 | ||
230 | i = interact_read_packet(gameport, INTERACT_MAX_LENGTH * 2, data); | |
231 | ||
232 | if (i != 32 || (data[0] >> 24) != 0x0c || (data[1] >> 24) != 0x02) { | |
233 | err = -ENODEV; | |
234 | goto fail2; | |
235 | } | |
236 | ||
237 | for (i = 0; interact_type[i].length; i++) | |
238 | if (interact_type[i].id == (data[2] >> 16)) | |
239 | break; | |
240 | ||
241 | if (!interact_type[i].length) { | |
242 | printk(KERN_WARNING "interact.c: Unknown joystick on %s. [len %d d0 %08x d1 %08x i2 %08x]\n", | |
243 | gameport->phys, i, data[0], data[1], data[2]); | |
244 | err = -ENODEV; | |
245 | goto fail2; | |
246 | } | |
247 | ||
248 | gameport_set_poll_handler(gameport, interact_poll); | |
249 | gameport_set_poll_interval(gameport, 20); | |
250 | ||
10ca4c0a | 251 | snprintf(interact->phys, sizeof(interact->phys), "%s/input0", gameport->phys); |
1da177e4 LT |
252 | |
253 | interact->type = i; | |
254 | interact->length = interact_type[i].length; | |
255 | ||
17dd3f0f DT |
256 | input_dev->name = interact_type[i].name; |
257 | input_dev->phys = interact->phys; | |
258 | input_dev->id.bustype = BUS_GAMEPORT; | |
259 | input_dev->id.vendor = GAMEPORT_ID_VENDOR_INTERACT; | |
260 | input_dev->id.product = interact_type[i].id; | |
261 | input_dev->id.version = 0x0100; | |
935e658e | 262 | input_dev->dev.parent = &gameport->dev; |
8715c1cf DT |
263 | |
264 | input_set_drvdata(input_dev, interact); | |
1da177e4 | 265 | |
17dd3f0f DT |
266 | input_dev->open = interact_open; |
267 | input_dev->close = interact_close; | |
1da177e4 | 268 | |
7b19ada2 | 269 | input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); |
1da177e4 LT |
270 | |
271 | for (i = 0; (t = interact_type[interact->type].abs[i]) >= 0; i++) { | |
987a6c02 DM |
272 | if (i < interact_type[interact->type].b8) |
273 | input_set_abs_params(input_dev, t, 0, 255, 0, 0); | |
274 | else | |
275 | input_set_abs_params(input_dev, t, -1, 1, 0, 0); | |
1da177e4 LT |
276 | } |
277 | ||
278 | for (i = 0; (t = interact_type[interact->type].btn[i]) >= 0; i++) | |
987a6c02 | 279 | __set_bit(t, input_dev->keybit); |
1da177e4 | 280 | |
127278ce DT |
281 | err = input_register_device(interact->dev); |
282 | if (err) | |
283 | goto fail2; | |
1da177e4 LT |
284 | |
285 | return 0; | |
286 | ||
287 | fail2: gameport_close(gameport); | |
288 | fail1: gameport_set_drvdata(gameport, NULL); | |
17dd3f0f | 289 | input_free_device(input_dev); |
1da177e4 LT |
290 | kfree(interact); |
291 | return err; | |
292 | } | |
293 | ||
294 | static void interact_disconnect(struct gameport *gameport) | |
295 | { | |
296 | struct interact *interact = gameport_get_drvdata(gameport); | |
297 | ||
17dd3f0f | 298 | input_unregister_device(interact->dev); |
1da177e4 LT |
299 | gameport_close(gameport); |
300 | gameport_set_drvdata(gameport, NULL); | |
301 | kfree(interact); | |
302 | } | |
303 | ||
304 | static struct gameport_driver interact_drv = { | |
305 | .driver = { | |
306 | .name = "interact", | |
307 | }, | |
308 | .description = DRIVER_DESC, | |
309 | .connect = interact_connect, | |
310 | .disconnect = interact_disconnect, | |
311 | }; | |
312 | ||
98a84131 | 313 | module_gameport_driver(interact_drv); |