diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/input/joystick/turbografx.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/turbografx.c')
-rw-r--r-- | drivers/input/joystick/turbografx.c | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/drivers/input/joystick/turbografx.c b/drivers/input/joystick/turbografx.c new file mode 100644 index 000000000000..dd88b9cb49fa --- /dev/null +++ b/drivers/input/joystick/turbografx.c | |||
@@ -0,0 +1,258 @@ | |||
1 | /* | ||
2 | * $Id: turbografx.c,v 1.14 2002/01/22 20:30:39 vojtech Exp $ | ||
3 | * | ||
4 | * Copyright (c) 1998-2001 Vojtech Pavlik | ||
5 | * | ||
6 | * Based on the work of: | ||
7 | * Steffen Schwenke | ||
8 | */ | ||
9 | |||
10 | /* | ||
11 | * TurboGraFX parallel port interface 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/parport.h> | ||
36 | #include <linux/input.h> | ||
37 | #include <linux/module.h> | ||
38 | #include <linux/moduleparam.h> | ||
39 | #include <linux/init.h> | ||
40 | |||
41 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); | ||
42 | MODULE_DESCRIPTION("TurboGraFX parallel port interface driver"); | ||
43 | MODULE_LICENSE("GPL"); | ||
44 | |||
45 | static int tgfx[] __initdata = { -1, 0, 0, 0, 0, 0, 0, 0 }; | ||
46 | static int tgfx_nargs __initdata = 0; | ||
47 | module_param_array_named(map, tgfx, int, &tgfx_nargs, 0); | ||
48 | MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<js1>,<js2>,..<js7>"); | ||
49 | |||
50 | static int tgfx_2[] __initdata = { -1, 0, 0, 0, 0, 0, 0, 0 }; | ||
51 | static int tgfx_nargs_2 __initdata = 0; | ||
52 | module_param_array_named(map2, tgfx_2, int, &tgfx_nargs_2, 0); | ||
53 | MODULE_PARM_DESC(map2, "Describes second set of devices"); | ||
54 | |||
55 | static int tgfx_3[] __initdata = { -1, 0, 0, 0, 0, 0, 0, 0 }; | ||
56 | static int tgfx_nargs_3 __initdata = 0; | ||
57 | module_param_array_named(map3, tgfx_3, int, &tgfx_nargs_3, 0); | ||
58 | MODULE_PARM_DESC(map3, "Describes third set of devices"); | ||
59 | |||
60 | __obsolete_setup("tgfx="); | ||
61 | __obsolete_setup("tgfx_2="); | ||
62 | __obsolete_setup("tgfx_3="); | ||
63 | |||
64 | #define TGFX_REFRESH_TIME HZ/100 /* 10 ms */ | ||
65 | |||
66 | #define TGFX_TRIGGER 0x08 | ||
67 | #define TGFX_UP 0x10 | ||
68 | #define TGFX_DOWN 0x20 | ||
69 | #define TGFX_LEFT 0x40 | ||
70 | #define TGFX_RIGHT 0x80 | ||
71 | |||
72 | #define TGFX_THUMB 0x02 | ||
73 | #define TGFX_THUMB2 0x04 | ||
74 | #define TGFX_TOP 0x01 | ||
75 | #define TGFX_TOP2 0x08 | ||
76 | |||
77 | static int tgfx_buttons[] = { BTN_TRIGGER, BTN_THUMB, BTN_THUMB2, BTN_TOP, BTN_TOP2 }; | ||
78 | static char *tgfx_name = "TurboGraFX Multisystem joystick"; | ||
79 | |||
80 | static struct tgfx { | ||
81 | struct pardevice *pd; | ||
82 | struct timer_list timer; | ||
83 | struct input_dev dev[7]; | ||
84 | char phys[7][32]; | ||
85 | int sticks; | ||
86 | int used; | ||
87 | } *tgfx_base[3]; | ||
88 | |||
89 | /* | ||
90 | * tgfx_timer() reads and analyzes TurboGraFX joystick data. | ||
91 | */ | ||
92 | |||
93 | static void tgfx_timer(unsigned long private) | ||
94 | { | ||
95 | struct tgfx *tgfx = (void *) private; | ||
96 | struct input_dev *dev; | ||
97 | int data1, data2, i; | ||
98 | |||
99 | for (i = 0; i < 7; i++) | ||
100 | if (tgfx->sticks & (1 << i)) { | ||
101 | |||
102 | dev = tgfx->dev + i; | ||
103 | |||
104 | parport_write_data(tgfx->pd->port, ~(1 << i)); | ||
105 | data1 = parport_read_status(tgfx->pd->port) ^ 0x7f; | ||
106 | data2 = parport_read_control(tgfx->pd->port) ^ 0x04; /* CAVEAT parport */ | ||
107 | |||
108 | input_report_abs(dev, ABS_X, !!(data1 & TGFX_RIGHT) - !!(data1 & TGFX_LEFT)); | ||
109 | input_report_abs(dev, ABS_Y, !!(data1 & TGFX_DOWN ) - !!(data1 & TGFX_UP )); | ||
110 | |||
111 | input_report_key(dev, BTN_TRIGGER, (data1 & TGFX_TRIGGER)); | ||
112 | input_report_key(dev, BTN_THUMB, (data2 & TGFX_THUMB )); | ||
113 | input_report_key(dev, BTN_THUMB2, (data2 & TGFX_THUMB2 )); | ||
114 | input_report_key(dev, BTN_TOP, (data2 & TGFX_TOP )); | ||
115 | input_report_key(dev, BTN_TOP2, (data2 & TGFX_TOP2 )); | ||
116 | |||
117 | input_sync(dev); | ||
118 | } | ||
119 | |||
120 | mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME); | ||
121 | } | ||
122 | |||
123 | static int tgfx_open(struct input_dev *dev) | ||
124 | { | ||
125 | struct tgfx *tgfx = dev->private; | ||
126 | if (!tgfx->used++) { | ||
127 | parport_claim(tgfx->pd); | ||
128 | parport_write_control(tgfx->pd->port, 0x04); | ||
129 | mod_timer(&tgfx->timer, jiffies + TGFX_REFRESH_TIME); | ||
130 | } | ||
131 | return 0; | ||
132 | } | ||
133 | |||
134 | static void tgfx_close(struct input_dev *dev) | ||
135 | { | ||
136 | struct tgfx *tgfx = dev->private; | ||
137 | if (!--tgfx->used) { | ||
138 | del_timer(&tgfx->timer); | ||
139 | parport_write_control(tgfx->pd->port, 0x00); | ||
140 | parport_release(tgfx->pd); | ||
141 | } | ||
142 | } | ||
143 | |||
144 | /* | ||
145 | * tgfx_probe() probes for tg gamepads. | ||
146 | */ | ||
147 | |||
148 | static struct tgfx __init *tgfx_probe(int *config, int nargs) | ||
149 | { | ||
150 | struct tgfx *tgfx; | ||
151 | struct parport *pp; | ||
152 | int i, j; | ||
153 | |||
154 | if (config[0] < 0) | ||
155 | return NULL; | ||
156 | |||
157 | if (nargs < 2) { | ||
158 | printk(KERN_ERR "turbografx.c: at least one joystick must be specified\n"); | ||
159 | return NULL; | ||
160 | } | ||
161 | |||
162 | pp = parport_find_number(config[0]); | ||
163 | |||
164 | if (!pp) { | ||
165 | printk(KERN_ERR "turbografx.c: no such parport\n"); | ||
166 | return NULL; | ||
167 | } | ||
168 | |||
169 | if (!(tgfx = kmalloc(sizeof(struct tgfx), GFP_KERNEL))) { | ||
170 | parport_put_port(pp); | ||
171 | return NULL; | ||
172 | } | ||
173 | memset(tgfx, 0, sizeof(struct tgfx)); | ||
174 | |||
175 | tgfx->pd = parport_register_device(pp, "turbografx", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL); | ||
176 | |||
177 | parport_put_port(pp); | ||
178 | |||
179 | if (!tgfx->pd) { | ||
180 | printk(KERN_ERR "turbografx.c: parport busy already - lp.o loaded?\n"); | ||
181 | kfree(tgfx); | ||
182 | return NULL; | ||
183 | } | ||
184 | |||
185 | init_timer(&tgfx->timer); | ||
186 | tgfx->timer.data = (long) tgfx; | ||
187 | tgfx->timer.function = tgfx_timer; | ||
188 | |||
189 | tgfx->sticks = 0; | ||
190 | |||
191 | for (i = 0; i < nargs - 1; i++) | ||
192 | if (config[i+1] > 0 && config[i+1] < 6) { | ||
193 | |||
194 | tgfx->sticks |= (1 << i); | ||
195 | |||
196 | tgfx->dev[i].private = tgfx; | ||
197 | tgfx->dev[i].open = tgfx_open; | ||
198 | tgfx->dev[i].close = tgfx_close; | ||
199 | |||
200 | sprintf(tgfx->phys[i], "%s/input0", tgfx->pd->port->name); | ||
201 | |||
202 | tgfx->dev[i].name = tgfx_name; | ||
203 | tgfx->dev[i].phys = tgfx->phys[i]; | ||
204 | tgfx->dev[i].id.bustype = BUS_PARPORT; | ||
205 | tgfx->dev[i].id.vendor = 0x0003; | ||
206 | tgfx->dev[i].id.product = config[i+1]; | ||
207 | tgfx->dev[i].id.version = 0x0100; | ||
208 | |||
209 | tgfx->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); | ||
210 | tgfx->dev[i].absbit[0] = BIT(ABS_X) | BIT(ABS_Y); | ||
211 | |||
212 | for (j = 0; j < config[i+1]; j++) | ||
213 | set_bit(tgfx_buttons[j], tgfx->dev[i].keybit); | ||
214 | |||
215 | tgfx->dev[i].absmin[ABS_X] = -1; tgfx->dev[i].absmax[ABS_X] = 1; | ||
216 | tgfx->dev[i].absmin[ABS_Y] = -1; tgfx->dev[i].absmax[ABS_Y] = 1; | ||
217 | |||
218 | input_register_device(tgfx->dev + i); | ||
219 | printk(KERN_INFO "input: %d-button Multisystem joystick on %s\n", | ||
220 | config[i+1], tgfx->pd->port->name); | ||
221 | } | ||
222 | |||
223 | if (!tgfx->sticks) { | ||
224 | parport_unregister_device(tgfx->pd); | ||
225 | kfree(tgfx); | ||
226 | return NULL; | ||
227 | } | ||
228 | |||
229 | return tgfx; | ||
230 | } | ||
231 | |||
232 | static int __init tgfx_init(void) | ||
233 | { | ||
234 | tgfx_base[0] = tgfx_probe(tgfx, tgfx_nargs); | ||
235 | tgfx_base[1] = tgfx_probe(tgfx_2, tgfx_nargs_2); | ||
236 | tgfx_base[2] = tgfx_probe(tgfx_3, tgfx_nargs_3); | ||
237 | |||
238 | if (tgfx_base[0] || tgfx_base[1] || tgfx_base[2]) | ||
239 | return 0; | ||
240 | |||
241 | return -ENODEV; | ||
242 | } | ||
243 | |||
244 | static void __exit tgfx_exit(void) | ||
245 | { | ||
246 | int i, j; | ||
247 | |||
248 | for (i = 0; i < 3; i++) | ||
249 | if (tgfx_base[i]) { | ||
250 | for (j = 0; j < 7; j++) | ||
251 | if (tgfx_base[i]->sticks & (1 << j)) | ||
252 | input_unregister_device(tgfx_base[i]->dev + j); | ||
253 | parport_unregister_device(tgfx_base[i]->pd); | ||
254 | } | ||
255 | } | ||
256 | |||
257 | module_init(tgfx_init); | ||
258 | module_exit(tgfx_exit); | ||