DEVFS - remove dev_ops_add(), dev_ops_get(), and get_dev()
[dragonfly.git] / sys / dev / misc / joy / joy.c
CommitLineData
984263bc
MD
1/*-
2 * Copyright (c) 1995 Jean-Marc Zucconi
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software withough specific prior written permission
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: src/sys/isa/joy.c,v 1.38.2.1 2001/09/01 05:55:31 murray Exp $
c8b4f0e6 29 * $DragonFly: src/sys/dev/misc/joy/joy.c,v 1.12 2007/10/23 03:04:49 y0netan1 Exp $
984263bc
MD
30 */
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/conf.h>
fef8985e 35#include <sys/device.h>
984263bc
MD
36#include <sys/uio.h>
37#include <sys/kernel.h>
38#include <sys/module.h>
39#include <sys/bus.h>
984263bc 40#include <sys/rman.h>
6434890e 41#include <sys/thread2.h>
984263bc
MD
42#include <sys/time.h>
43#include <sys/joystick.h>
44
1f2de5d4 45#include <bus/isa/isavar.h>
984263bc
MD
46#include "isa_if.h"
47
48/* The game port can manage 4 buttons and 4 variable resistors (usually 2
49 * joysticks, each with 2 buttons and 2 pots.) via the port at address 0x201.
50 * Getting the state of the buttons is done by reading the game port:
51 * buttons 1-4 correspond to bits 4-7 and resistors 1-4 (X1, Y1, X2, Y2)
52 * to bits 0-3.
53 * if button 1 (resp 2, 3, 4) is pressed, the bit 4 (resp 5, 6, 7) is set to 0
54 * to get the value of a resistor, write the value 0xff at port and
55 * wait until the corresponding bit returns to 0.
56 */
57
58#define joypart(d) (minor(d)&1)
59#define UNIT(d) ((minor(d)>>1)&3)
60#ifndef JOY_TIMEOUT
61#define JOY_TIMEOUT 2000 /* 2 milliseconds */
62#endif
63
64struct joy_softc {
65 bus_space_tag_t bt;
66 bus_space_handle_t port;
67 int x_off[2], y_off[2];
68 int timeout[2];
69};
70
71#define JOY_SOFTC(unit) (struct joy_softc *) \
72 devclass_get_softc(joy_devclass,(unit))
73
74static int joy_probe (device_t);
75static int joy_attach (device_t);
76
77#define CDEV_MAJOR 51
78static d_open_t joyopen;
79static d_close_t joyclose;
80static d_read_t joyread;
81static d_ioctl_t joyioctl;
82
fef8985e
MD
83static struct dev_ops joy_ops = {
84 { "joy", CDEV_MAJOR, 0 },
85 .d_open = joyopen,
86 .d_close = joyclose,
87 .d_read = joyread,
88 .d_ioctl = joyioctl,
984263bc
MD
89};
90
91devclass_t joy_devclass;
92
93static struct isa_pnp_id joy_ids[] = {
94 {0x0100630e, "CSC0001 PnP Joystick"}, /* CSC0001 */
95 {0x0101630e, "CSC0101 PnP Joystick"}, /* CSC0101 */
96 {0x01100002, "ALS0110 PnP Joystick"}, /* @P@1001 */
97 {0x01200002, "ALS0120 PnP Joystick"}, /* @P@2001 */
98 {0x01007316, "ESS0001 PnP Joystick"}, /* ESS0001 */
99 {0x2fb0d041, "Generic PnP Joystick"}, /* PNPb02f */
100 {0x2200a865, "YMH0022 PnP Joystick"}, /* YMH0022 */
101 {0x82719304, NULL}, /* ADS7182 */
102 {0}
103};
104
105static int
106joy_probe (device_t dev)
107{
108 if (ISA_PNP_PROBE(device_get_parent(dev), dev, joy_ids) == ENXIO)
109 return ENXIO;
110#ifdef WANT_JOYSTICK_CONNECTED
111#ifdef notyet
112 outb (dev->id_iobase, 0xff);
113 DELAY (10000); /* 10 ms delay */
114 return (inb (dev->id_iobase) & 0x0f) != 0x0f;
115#endif
116#else
117 return 0;
118#endif
119}
120
121static int
122joy_attach (device_t dev)
123{
124 int unit = device_get_unit(dev);
125 int rid = 0;
126 struct resource *res;
127 struct joy_softc *joy = device_get_softc(dev);
128
129 res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
130 if (res == NULL)
131 return ENXIO;
132 joy->bt = rman_get_bustag(res);
133 joy->port = rman_get_bushandle(res);
134 joy->timeout[0] = joy->timeout[1] = 0;
fef8985e 135 make_dev(&joy_ops, unit, 0, 0, 0600, "joy%d", unit);
984263bc
MD
136 return 0;
137}
138
139static device_method_t joy_methods[] = {
140 DEVMETHOD(device_probe, joy_probe),
141 DEVMETHOD(device_attach, joy_attach),
142 { 0, 0 }
143};
144
145static driver_t joy_isa_driver = {
146 "joy",
147 joy_methods,
148 sizeof (struct joy_softc)
149};
150
151DRIVER_MODULE(joy, isa, joy_isa_driver, joy_devclass, 0, 0);
c8b4f0e6 152DRIVER_MODULE(joy, acpi, joy_isa_driver, joy_devclass, 0, 0);
984263bc
MD
153
154static int
fef8985e 155joyopen(struct dev_open_args *ap)
984263bc 156{
b13267a5 157 cdev_t dev = ap->a_head.a_dev;
984263bc
MD
158 int i = joypart (dev);
159 struct joy_softc *joy = JOY_SOFTC(UNIT(dev));
160
161 if (joy->timeout[i])
162 return EBUSY;
163 joy->x_off[i] = joy->y_off[i] = 0;
164 joy->timeout[i] = JOY_TIMEOUT;
165 return 0;
166}
167
168static int
fef8985e 169joyclose(struct dev_close_args *ap)
984263bc 170{
b13267a5 171 cdev_t dev = ap->a_head.a_dev;
984263bc
MD
172 int i = joypart (dev);
173 struct joy_softc *joy = JOY_SOFTC(UNIT(dev));
174
175 joy->timeout[i] = 0;
176 return 0;
177}
178
179static int
fef8985e 180joyread(struct dev_read_args *ap)
984263bc 181{
b13267a5 182 cdev_t dev = ap->a_head.a_dev;
fef8985e 183 struct uio *uio = ap->a_uio;
984263bc
MD
184 struct joy_softc *joy = JOY_SOFTC(UNIT(dev));
185 bus_space_handle_t port = joy->port;
186 bus_space_tag_t bt = joy->bt;
187 struct timespec t, start, end;
188 int state = 0;
189 struct timespec x, y;
190 struct joystick c;
984263bc 191
6434890e
JS
192 crit_enter();
193
984263bc
MD
194 bus_space_write_1 (bt, port, 0, 0xff);
195 nanotime(&start);
196 end.tv_sec = 0;
197 end.tv_nsec = joy->timeout[joypart(dev)] * 1000;
198 timespecadd(&end, &start);
199 t = start;
200 timespecclear(&x);
201 timespecclear(&y);
202 while (timespeccmp(&t, &end, <)) {
203 state = bus_space_read_1 (bt, port, 0);
204 if (joypart(dev) == 1)
205 state >>= 2;
206 nanotime(&t);
207 if (!timespecisset(&x) && !(state & 0x01))
208 x = t;
209 if (!timespecisset(&y) && !(state & 0x02))
210 y = t;
211 if (timespecisset(&x) && timespecisset(&y))
212 break;
213 }
6434890e
JS
214
215 crit_exit();
216
984263bc
MD
217 if (timespecisset(&x)) {
218 timespecsub(&x, &start);
219 c.x = joy->x_off[joypart(dev)] + x.tv_nsec / 1000;
220 } else
221 c.x = 0x80000000;
222 if (timespecisset(&y)) {
223 timespecsub(&y, &start);
224 c.y = joy->y_off[joypart(dev)] + y.tv_nsec / 1000;
225 } else
226 c.y = 0x80000000;
227 state >>= 4;
228 c.b1 = ~state & 1;
229 c.b2 = ~(state >> 1) & 1;
230 return uiomove ((caddr_t)&c, sizeof(struct joystick), uio);
231}
232
233static int
fef8985e 234joyioctl(struct dev_ioctl_args *ap)
984263bc 235{
b13267a5 236 cdev_t dev = ap->a_head.a_dev;
fef8985e 237 caddr_t data = ap->a_data;
984263bc
MD
238 struct joy_softc *joy = JOY_SOFTC(UNIT(dev));
239 int i = joypart (dev);
240 int x;
241
fef8985e 242 switch (ap->a_cmd) {
984263bc
MD
243 case JOY_SETTIMEOUT:
244 x = *(int *) data;
245 if (x < 1 || x > 10000) /* 10ms maximum! */
246 return EINVAL;
247 joy->timeout[i] = x;
248 break;
249 case JOY_GETTIMEOUT:
250 *(int *) data = joy->timeout[i];
251 break;
252 case JOY_SET_X_OFFSET:
253 joy->x_off[i] = *(int *) data;
254 break;
255 case JOY_SET_Y_OFFSET:
256 joy->y_off[i] = *(int *) data;
257 break;
258 case JOY_GET_X_OFFSET:
259 *(int *) data = joy->x_off[i];
260 break;
261 case JOY_GET_Y_OFFSET:
262 *(int *) data = joy->y_off[i];
263 break;
264 default:
265 return ENXIO;
266 }
267 return 0;
268}