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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/input/joystick/gf2k.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/input/joystick/gf2k.c')
-rw-r--r--drivers/input/joystick/gf2k.c380
1 files changed, 380 insertions, 0 deletions
diff --git a/drivers/input/joystick/gf2k.c b/drivers/input/joystick/gf2k.c
new file mode 100644
index 000000000000..ad13f09a4e71
--- /dev/null
+++ b/drivers/input/joystick/gf2k.c
@@ -0,0 +1,380 @@
1/*
2 * $Id: gf2k.c,v 1.19 2002/01/22 20:27:43 vojtech Exp $
3 *
4 * Copyright (c) 1998-2001 Vojtech Pavlik
5 */
6
7/*
8 * Genius Flight 2000 joystick driver for Linux
9 */
10
11/*
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 *
26 * Should you need to contact me, the author, you can do so either by
27 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
28 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
29 */
30
31#include <linux/delay.h>
32#include <linux/kernel.h>
33#include <linux/slab.h>
34#include <linux/module.h>
35#include <linux/init.h>
36#include <linux/input.h>
37#include <linux/gameport.h>
38
39#define DRIVER_DESC "Genius Flight 2000 joystick driver"
40
41MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
42MODULE_DESCRIPTION(DRIVER_DESC);
43MODULE_LICENSE("GPL");
44
45#define GF2K_START 400 /* The time we wait for the first bit [400 us] */
46#define GF2K_STROBE 40 /* The time we wait for the first bit [40 us] */
47#define GF2K_TIMEOUT 4 /* Wait for everything to settle [4 ms] */
48#define GF2K_LENGTH 80 /* Max number of triplets in a packet */
49
50/*
51 * Genius joystick ids ...
52 */
53
54#define GF2K_ID_G09 1
55#define GF2K_ID_F30D 2
56#define GF2K_ID_F30 3
57#define GF2K_ID_F31D 4
58#define GF2K_ID_F305 5
59#define GF2K_ID_F23P 6
60#define GF2K_ID_F31 7
61#define GF2K_ID_MAX 7
62
63static char gf2k_length[] = { 40, 40, 40, 40, 40, 40, 40, 40 };
64static char gf2k_hat_to_axis[][2] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
65
66static char *gf2k_names[] = {"", "Genius G-09D", "Genius F-30D", "Genius F-30", "Genius MaxFighter F-31D",
67 "Genius F-30-5", "Genius Flight2000 F-23", "Genius F-31"};
68static unsigned char gf2k_hats[] = { 0, 2, 0, 0, 2, 0, 2, 0 };
69static unsigned char gf2k_axes[] = { 0, 2, 0, 0, 4, 0, 4, 0 };
70static unsigned char gf2k_joys[] = { 0, 0, 0, 0,10, 0, 8, 0 };
71static unsigned char gf2k_pads[] = { 0, 6, 0, 0, 0, 0, 0, 0 };
72static unsigned char gf2k_lens[] = { 0,18, 0, 0,18, 0,18, 0 };
73
74static unsigned char gf2k_abs[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_GAS, ABS_BRAKE };
75static short gf2k_btn_joy[] = { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4 };
76static short gf2k_btn_pad[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_START, BTN_SELECT };
77
78
79static short gf2k_seq_reset[] = { 240, 340, 0 };
80static short gf2k_seq_digital[] = { 590, 320, 860, 0 };
81
82struct gf2k {
83 struct gameport *gameport;
84 struct input_dev dev;
85 int reads;
86 int bads;
87 unsigned char id;
88 unsigned char length;
89 char phys[32];
90};
91
92/*
93 * gf2k_read_packet() reads a Genius Flight2000 packet.
94 */
95
96static int gf2k_read_packet(struct gameport *gameport, int length, char *data)
97{
98 unsigned char u, v;
99 int i;
100 unsigned int t, p;
101 unsigned long flags;
102
103 t = gameport_time(gameport, GF2K_START);
104 p = gameport_time(gameport, GF2K_STROBE);
105
106 i = 0;
107
108 local_irq_save(flags);
109
110 gameport_trigger(gameport);
111 v = gameport_read(gameport);
112
113 while (t > 0 && i < length) {
114 t--; u = v;
115 v = gameport_read(gameport);
116 if (v & ~u & 0x10) {
117 data[i++] = v >> 5;
118 t = p;
119 }
120 }
121
122 local_irq_restore(flags);
123
124 return i;
125}
126
127/*
128 * gf2k_trigger_seq() initializes a Genius Flight2000 joystick
129 * into digital mode.
130 */
131
132static void gf2k_trigger_seq(struct gameport *gameport, short *seq)
133{
134
135 unsigned long flags;
136 int i, t;
137
138 local_irq_save(flags);
139
140 i = 0;
141 do {
142 gameport_trigger(gameport);
143 t = gameport_time(gameport, GF2K_TIMEOUT * 1000);
144 while ((gameport_read(gameport) & 1) && t) t--;
145 udelay(seq[i]);
146 } while (seq[++i]);
147
148 gameport_trigger(gameport);
149
150 local_irq_restore(flags);
151}
152
153/*
154 * js_sw_get_bits() composes bits from the triplet buffer into a __u64.
155 * Parameter 'pos' is bit number inside packet where to start at, 'num' is number
156 * of bits to be read, 'shift' is offset in the resulting __u64 to start at, bits
157 * is number of bits per triplet.
158 */
159
160#define GB(p,n,s) gf2k_get_bits(data, p, n, s)
161
162static int gf2k_get_bits(unsigned char *buf, int pos, int num, int shift)
163{
164 __u64 data = 0;
165 int i;
166
167 for (i = 0; i < num / 3 + 2; i++)
168 data |= buf[pos / 3 + i] << (i * 3);
169 data >>= pos % 3;
170 data &= (1 << num) - 1;
171 data <<= shift;
172
173 return data;
174}
175
176static void gf2k_read(struct gf2k *gf2k, unsigned char *data)
177{
178 struct input_dev *dev = &gf2k->dev;
179 int i, t;
180
181 for (i = 0; i < 4 && i < gf2k_axes[gf2k->id]; i++)
182 input_report_abs(dev, gf2k_abs[i], GB(i<<3,8,0) | GB(i+46,1,8) | GB(i+50,1,9));
183
184 for (i = 0; i < 2 && i < gf2k_axes[gf2k->id] - 4; i++)
185 input_report_abs(dev, gf2k_abs[i], GB(i*9+60,8,0) | GB(i+54,1,9));
186
187 t = GB(40,4,0);
188
189 for (i = 0; i < gf2k_hats[gf2k->id]; i++)
190 input_report_abs(dev, ABS_HAT0X + i, gf2k_hat_to_axis[t][i]);
191
192 t = GB(44,2,0) | GB(32,8,2) | GB(78,2,10);
193
194 for (i = 0; i < gf2k_joys[gf2k->id]; i++)
195 input_report_key(dev, gf2k_btn_joy[i], (t >> i) & 1);
196
197 for (i = 0; i < gf2k_pads[gf2k->id]; i++)
198 input_report_key(dev, gf2k_btn_pad[i], (t >> i) & 1);
199
200 input_sync(dev);
201}
202
203/*
204 * gf2k_poll() reads and analyzes Genius joystick data.
205 */
206
207static void gf2k_poll(struct gameport *gameport)
208{
209 struct gf2k *gf2k = gameport_get_drvdata(gameport);
210 unsigned char data[GF2K_LENGTH];
211
212 gf2k->reads++;
213
214 if (gf2k_read_packet(gf2k->gameport, gf2k_length[gf2k->id], data) < gf2k_length[gf2k->id])
215 gf2k->bads++;
216 else
217 gf2k_read(gf2k, data);
218}
219
220static int gf2k_open(struct input_dev *dev)
221{
222 struct gf2k *gf2k = dev->private;
223
224 gameport_start_polling(gf2k->gameport);
225 return 0;
226}
227
228static void gf2k_close(struct input_dev *dev)
229{
230 struct gf2k *gf2k = dev->private;
231
232 gameport_stop_polling(gf2k->gameport);
233}
234
235/*
236 * gf2k_connect() probes for Genius id joysticks.
237 */
238
239static int gf2k_connect(struct gameport *gameport, struct gameport_driver *drv)
240{
241 struct gf2k *gf2k;
242 unsigned char data[GF2K_LENGTH];
243 int i, err;
244
245 if (!(gf2k = kcalloc(1, sizeof(struct gf2k), GFP_KERNEL)))
246 return -ENOMEM;
247
248 gf2k->gameport = gameport;
249
250 gameport_set_drvdata(gameport, gf2k);
251
252 err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
253 if (err)
254 goto fail1;
255
256 gf2k_trigger_seq(gameport, gf2k_seq_reset);
257
258 msleep(GF2K_TIMEOUT);
259
260 gf2k_trigger_seq(gameport, gf2k_seq_digital);
261
262 msleep(GF2K_TIMEOUT);
263
264 if (gf2k_read_packet(gameport, GF2K_LENGTH, data) < 12) {
265 err = -ENODEV;
266 goto fail2;
267 }
268
269 if (!(gf2k->id = GB(7,2,0) | GB(3,3,2) | GB(0,3,5))) {
270 err = -ENODEV;
271 goto fail2;
272 }
273
274#ifdef RESET_WORKS
275 if ((gf2k->id != (GB(19,2,0) | GB(15,3,2) | GB(12,3,5))) ||
276 (gf2k->id != (GB(31,2,0) | GB(27,3,2) | GB(24,3,5)))) {
277 err = -ENODEV;
278 goto fail2;
279 }
280#else
281 gf2k->id = 6;
282#endif
283
284 if (gf2k->id > GF2K_ID_MAX || !gf2k_axes[gf2k->id]) {
285 printk(KERN_WARNING "gf2k.c: Not yet supported joystick on %s. [id: %d type:%s]\n",
286 gameport->phys, gf2k->id, gf2k->id > GF2K_ID_MAX ? "Unknown" : gf2k_names[gf2k->id]);
287 err = -ENODEV;
288 goto fail2;
289 }
290
291 gameport_set_poll_handler(gameport, gf2k_poll);
292 gameport_set_poll_interval(gameport, 20);
293
294 sprintf(gf2k->phys, "%s/input0", gameport->phys);
295
296 gf2k->length = gf2k_lens[gf2k->id];
297
298 init_input_dev(&gf2k->dev);
299
300 gf2k->dev.private = gf2k;
301 gf2k->dev.open = gf2k_open;
302 gf2k->dev.close = gf2k_close;
303 gf2k->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
304
305 gf2k->dev.name = gf2k_names[gf2k->id];
306 gf2k->dev.phys = gf2k->phys;
307 gf2k->dev.id.bustype = BUS_GAMEPORT;
308 gf2k->dev.id.vendor = GAMEPORT_ID_VENDOR_GENIUS;
309 gf2k->dev.id.product = gf2k->id;
310 gf2k->dev.id.version = 0x0100;
311
312 for (i = 0; i < gf2k_axes[gf2k->id]; i++)
313 set_bit(gf2k_abs[i], gf2k->dev.absbit);
314
315 for (i = 0; i < gf2k_hats[gf2k->id]; i++) {
316 set_bit(ABS_HAT0X + i, gf2k->dev.absbit);
317 gf2k->dev.absmin[ABS_HAT0X + i] = -1;
318 gf2k->dev.absmax[ABS_HAT0X + i] = 1;
319 }
320
321 for (i = 0; i < gf2k_joys[gf2k->id]; i++)
322 set_bit(gf2k_btn_joy[i], gf2k->dev.keybit);
323
324 for (i = 0; i < gf2k_pads[gf2k->id]; i++)
325 set_bit(gf2k_btn_pad[i], gf2k->dev.keybit);
326
327 gf2k_read_packet(gameport, gf2k->length, data);
328 gf2k_read(gf2k, data);
329
330 for (i = 0; i < gf2k_axes[gf2k->id]; i++) {
331 gf2k->dev.absmax[gf2k_abs[i]] = (i < 2) ? gf2k->dev.abs[gf2k_abs[i]] * 2 - 32 :
332 gf2k->dev.abs[gf2k_abs[0]] + gf2k->dev.abs[gf2k_abs[1]] - 32;
333 gf2k->dev.absmin[gf2k_abs[i]] = 32;
334 gf2k->dev.absfuzz[gf2k_abs[i]] = 8;
335 gf2k->dev.absflat[gf2k_abs[i]] = (i < 2) ? 24 : 0;
336 }
337
338 input_register_device(&gf2k->dev);
339 printk(KERN_INFO "input: %s on %s\n", gf2k_names[gf2k->id], gameport->phys);
340
341 return 0;
342
343fail2: gameport_close(gameport);
344fail1: gameport_set_drvdata(gameport, NULL);
345 kfree(gf2k);
346 return err;
347}
348
349static void gf2k_disconnect(struct gameport *gameport)
350{
351 struct gf2k *gf2k = gameport_get_drvdata(gameport);
352
353 input_unregister_device(&gf2k->dev);
354 gameport_close(gameport);
355 gameport_set_drvdata(gameport, NULL);
356 kfree(gf2k);
357}
358
359static struct gameport_driver gf2k_drv = {
360 .driver = {
361 .name = "gf2k",
362 },
363 .description = DRIVER_DESC,
364 .connect = gf2k_connect,
365 .disconnect = gf2k_disconnect,
366};
367
368static int __init gf2k_init(void)
369{
370 gameport_register_driver(&gf2k_drv);
371 return 0;
372}
373
374static void __exit gf2k_exit(void)
375{
376 gameport_unregister_driver(&gf2k_drv);
377}
378
379module_init(gf2k_init);
380module_exit(gf2k_exit);