135 lines
3.6 KiB
C
135 lines
3.6 KiB
C
/*
|
|
* Manuel Jander.
|
|
*
|
|
* Based on the work of:
|
|
* Vojtech Pavlik
|
|
* Raymond Ingles
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* Should you need to contact me, the author, you can do so either by
|
|
* e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
|
|
* Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
|
|
*
|
|
* Based 90% on Vojtech Pavlik pcigame driver.
|
|
* Merged and modified by Manuel Jander, for the OpenVortex
|
|
* driver. (email: mjander@embedded.cl).
|
|
*/
|
|
|
|
#include <linux/time.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/init.h>
|
|
#include <sound/core.h>
|
|
#include "au88x0.h"
|
|
#include <linux/gameport.h>
|
|
#include <linux/export.h>
|
|
|
|
#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
|
|
|
|
#define VORTEX_GAME_DWAIT 20 /* 20 ms */
|
|
|
|
static unsigned char vortex_game_read(struct gameport *gameport)
|
|
{
|
|
vortex_t *vortex = gameport_get_port_data(gameport);
|
|
return hwread(vortex->mmio, VORTEX_GAME_LEGACY);
|
|
}
|
|
|
|
static void vortex_game_trigger(struct gameport *gameport)
|
|
{
|
|
vortex_t *vortex = gameport_get_port_data(gameport);
|
|
hwwrite(vortex->mmio, VORTEX_GAME_LEGACY, 0xff);
|
|
}
|
|
|
|
static int
|
|
vortex_game_cooked_read(struct gameport *gameport, int *axes, int *buttons)
|
|
{
|
|
vortex_t *vortex = gameport_get_port_data(gameport);
|
|
int i;
|
|
|
|
*buttons = (~hwread(vortex->mmio, VORTEX_GAME_LEGACY) >> 4) & 0xf;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
axes[i] =
|
|
hwread(vortex->mmio, VORTEX_GAME_AXIS + (i * AXIS_SIZE));
|
|
if (axes[i] == AXIS_RANGE)
|
|
axes[i] = -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int vortex_game_open(struct gameport *gameport, int mode)
|
|
{
|
|
vortex_t *vortex = gameport_get_port_data(gameport);
|
|
|
|
switch (mode) {
|
|
case GAMEPORT_MODE_COOKED:
|
|
hwwrite(vortex->mmio, VORTEX_CTRL2,
|
|
hwread(vortex->mmio,
|
|
VORTEX_CTRL2) | CTRL2_GAME_ADCMODE);
|
|
msleep(VORTEX_GAME_DWAIT);
|
|
return 0;
|
|
case GAMEPORT_MODE_RAW:
|
|
hwwrite(vortex->mmio, VORTEX_CTRL2,
|
|
hwread(vortex->mmio,
|
|
VORTEX_CTRL2) & ~CTRL2_GAME_ADCMODE);
|
|
return 0;
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vortex_gameport_register(vortex_t *vortex)
|
|
{
|
|
struct gameport *gp;
|
|
|
|
vortex->gameport = gp = gameport_allocate_port();
|
|
if (!gp) {
|
|
dev_err(vortex->card->dev,
|
|
"cannot allocate memory for gameport\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
gameport_set_name(gp, "AU88x0 Gameport");
|
|
gameport_set_phys(gp, "pci%s/gameport0", pci_name(vortex->pci_dev));
|
|
gameport_set_dev_parent(gp, &vortex->pci_dev->dev);
|
|
|
|
gp->read = vortex_game_read;
|
|
gp->trigger = vortex_game_trigger;
|
|
gp->cooked_read = vortex_game_cooked_read;
|
|
gp->open = vortex_game_open;
|
|
|
|
gameport_set_port_data(gp, vortex);
|
|
gp->fuzz = 64;
|
|
|
|
gameport_register_port(gp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void vortex_gameport_unregister(vortex_t * vortex)
|
|
{
|
|
if (vortex->gameport) {
|
|
gameport_unregister_port(vortex->gameport);
|
|
vortex->gameport = NULL;
|
|
}
|
|
}
|
|
|
|
#else
|
|
static inline int vortex_gameport_register(vortex_t * vortex) { return -ENOSYS; }
|
|
static inline void vortex_gameport_unregister(vortex_t * vortex) { }
|
|
#endif
|