2 * $Id: au88x0_game.c,v 1.9 2003/09/22 03:51:28 mjander Exp $
6 * Based on the work of:
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 * Should you need to contact me, the author, you can do so either by
25 * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
26 * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
28 * Based 90% on Vojtech Pavlik pcigame driver.
29 * Merged and modified by Manuel Jander, for the OpenVortex
30 * driver. (email: mjander@embedded.cl).
33 #include <sound/driver.h>
34 #include <linux/time.h>
35 #include <linux/delay.h>
36 #include <linux/init.h>
37 #include <sound/core.h>
39 #include <linux/gameport.h>
41 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
43 #define VORTEX_GAME_DWAIT 20 /* 20 ms */
45 static unsigned char vortex_game_read(struct gameport *gameport)
47 vortex_t *vortex = gameport_get_port_data(gameport);
48 return hwread(vortex->mmio, VORTEX_GAME_LEGACY);
51 static void vortex_game_trigger(struct gameport *gameport)
53 vortex_t *vortex = gameport_get_port_data(gameport);
54 hwwrite(vortex->mmio, VORTEX_GAME_LEGACY, 0xff);
58 vortex_game_cooked_read(struct gameport *gameport, int *axes, int *buttons)
60 vortex_t *vortex = gameport_get_port_data(gameport);
63 *buttons = (~hwread(vortex->mmio, VORTEX_GAME_LEGACY) >> 4) & 0xf;
65 for (i = 0; i < 4; i++) {
67 hwread(vortex->mmio, VORTEX_GAME_AXIS + (i * AXIS_SIZE));
68 if (axes[i] == AXIS_RANGE)
74 static int vortex_game_open(struct gameport *gameport, int mode)
76 vortex_t *vortex = gameport_get_port_data(gameport);
79 case GAMEPORT_MODE_COOKED:
80 hwwrite(vortex->mmio, VORTEX_CTRL2,
82 VORTEX_CTRL2) | CTRL2_GAME_ADCMODE);
83 msleep(VORTEX_GAME_DWAIT);
85 case GAMEPORT_MODE_RAW:
86 hwwrite(vortex->mmio, VORTEX_CTRL2,
88 VORTEX_CTRL2) & ~CTRL2_GAME_ADCMODE);
97 static int __devinit vortex_gameport_register(vortex_t * vortex)
101 vortex->gameport = gp = gameport_allocate_port();
103 printk(KERN_ERR "vortex: cannot allocate memory for gameport\n");
107 gameport_set_name(gp, "AU88x0 Gameport");
108 gameport_set_phys(gp, "pci%s/gameport0", pci_name(vortex->pci_dev));
109 gameport_set_dev_parent(gp, &vortex->pci_dev->dev);
111 gp->read = vortex_game_read;
112 gp->trigger = vortex_game_trigger;
113 gp->cooked_read = vortex_game_cooked_read;
114 gp->open = vortex_game_open;
116 gameport_set_port_data(gp, vortex);
119 gameport_register_port(gp);
124 static void vortex_gameport_unregister(vortex_t * vortex)
126 if (vortex->gameport) {
127 gameport_unregister_port(vortex->gameport);
128 vortex->gameport = NULL;
133 static inline int vortex_gameport_register(vortex_t * vortex) { return -ENOSYS; }
134 static inline void vortex_gameport_unregister(vortex_t * vortex) { }