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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 /sound/pci/au88x0/au88x0_game.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 'sound/pci/au88x0/au88x0_game.c')
-rw-r--r--sound/pci/au88x0/au88x0_game.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/sound/pci/au88x0/au88x0_game.c b/sound/pci/au88x0/au88x0_game.c
new file mode 100644
index 000000000000..a07d1deba322
--- /dev/null
+++ b/sound/pci/au88x0/au88x0_game.c
@@ -0,0 +1,135 @@
1/*
2 * $Id: au88x0_game.c,v 1.9 2003/09/22 03:51:28 mjander Exp $
3 *
4 * Manuel Jander.
5 *
6 * Based on the work of:
7 * Vojtech Pavlik
8 * Raymond Ingles
9 *
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.
14 *
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.
19 *
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
23 *
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
27 *
28 * Based 90% on Vojtech Pavlik pcigame driver.
29 * Merged and modified by Manuel Jander, for the OpenVortex
30 * driver. (email: mjander@embedded.cl).
31 */
32
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>
38#include "au88x0.h"
39#include <linux/gameport.h>
40
41#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
42
43#define VORTEX_GAME_DWAIT 20 /* 20 ms */
44
45static unsigned char vortex_game_read(struct gameport *gameport)
46{
47 vortex_t *vortex = gameport_get_port_data(gameport);
48 return hwread(vortex->mmio, VORTEX_GAME_LEGACY);
49}
50
51static void vortex_game_trigger(struct gameport *gameport)
52{
53 vortex_t *vortex = gameport_get_port_data(gameport);
54 hwwrite(vortex->mmio, VORTEX_GAME_LEGACY, 0xff);
55}
56
57static int
58vortex_game_cooked_read(struct gameport *gameport, int *axes, int *buttons)
59{
60 vortex_t *vortex = gameport_get_port_data(gameport);
61 int i;
62
63 *buttons = (~hwread(vortex->mmio, VORTEX_GAME_LEGACY) >> 4) & 0xf;
64
65 for (i = 0; i < 4; i++) {
66 axes[i] =
67 hwread(vortex->mmio, VORTEX_GAME_AXIS + (i * AXIS_SIZE));
68 if (axes[i] == AXIS_RANGE)
69 axes[i] = -1;
70 }
71 return 0;
72}
73
74static int vortex_game_open(struct gameport *gameport, int mode)
75{
76 vortex_t *vortex = gameport_get_port_data(gameport);
77
78 switch (mode) {
79 case GAMEPORT_MODE_COOKED:
80 hwwrite(vortex->mmio, VORTEX_CTRL2,
81 hwread(vortex->mmio,
82 VORTEX_CTRL2) | CTRL2_GAME_ADCMODE);
83 msleep(VORTEX_GAME_DWAIT);
84 return 0;
85 case GAMEPORT_MODE_RAW:
86 hwwrite(vortex->mmio, VORTEX_CTRL2,
87 hwread(vortex->mmio,
88 VORTEX_CTRL2) & ~CTRL2_GAME_ADCMODE);
89 return 0;
90 default:
91 return -1;
92 }
93
94 return 0;
95}
96
97static int __devinit vortex_gameport_register(vortex_t * vortex)
98{
99 struct gameport *gp;
100
101 vortex->gameport = gp = gameport_allocate_port();
102 if (!gp) {
103 printk(KERN_ERR "vortex: cannot allocate memory for gameport\n");
104 return -ENOMEM;
105 };
106
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);
110
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;
115
116 gameport_set_port_data(gp, vortex);
117 gp->fuzz = 64;
118
119 gameport_register_port(gp);
120
121 return 0;
122}
123
124static void vortex_gameport_unregister(vortex_t * vortex)
125{
126 if (vortex->gameport) {
127 gameport_unregister_port(vortex->gameport);
128 vortex->gameport = NULL;
129 }
130}
131
132#else
133static inline int vortex_gameport_register(vortex_t * vortex) { return -ENOSYS; }
134static inline void vortex_gameport_unregister(vortex_t * vortex) { }
135#endif