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#define __NO_VERSION__ |
/* |
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#include "../../alsa-kernel/pci/au88x0/au88x0_game.c" |
* $Id$ |
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* |
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* Manuel Jander. |
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* |
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* Based on the work of: |
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* Vojtech Pavlik |
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* Raymond Ingles |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* Should you need to contact me, the author, you can do so either by |
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* e-mail - mail your message to <vojtech@suse.cz>, or by paper mail: |
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* Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic |
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* |
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* Based 90% on Vojtech Pavlik pcigame driver. |
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* Merged and modified by Manuel Jander, for the OpenVortex |
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* driver. (email: mjander@embedded.cl). |
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*/ |
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#include <sound/driver.h> |
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#include <linux/time.h> |
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#include <linux/init.h> |
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#include <sound/core.h> |
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#include "au88x0.h" |
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#include <linux/gameport.h> |
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#define VORTEX_GAME_DWAIT 20 /* 20 ms */ |
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static struct gameport gameport; |
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static unsigned char vortex_game_read(struct gameport *gameport) { |
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vortex_t *vortex = gameport->driver; |
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return hwread(vortex->mmio, VORTEX_GAME_LEGACY); |
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} |
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static void vortex_game_trigger(struct gameport *gameport) { |
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vortex_t *vortex = gameport->driver; |
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hwwrite(vortex->mmio, VORTEX_GAME_LEGACY, 0xff); |
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} |
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static int vortex_game_cooked_read(struct gameport *gameport, int *axes, int *buttons) { |
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vortex_t *vortex = gameport->driver; |
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int i; |
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*buttons = (~hwread(vortex->mmio, VORTEX_GAME_LEGACY) >> 4) & 0xf; |
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for (i = 0; i < 4; i++) { |
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axes[i] = hwread(vortex->mmio, VORTEX_GAME_AXIS + (i * AXIS_SIZE)); |
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if (axes[i] == AXIS_RANGE) axes[i] = -1; |
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} |
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return 0; |
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} |
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static int vortex_game_open(struct gameport *gameport, int mode) { |
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vortex_t *vortex = gameport->driver; |
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switch (mode) { |
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case GAMEPORT_MODE_COOKED: |
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hwwrite(vortex->mmio, VORTEX_CTRL2, hwread(vortex->mmio, VORTEX_CTRL2) | CTRL2_GAME_ADCMODE); |
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wait_ms(VORTEX_GAME_DWAIT); |
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return 0; |
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case GAMEPORT_MODE_RAW: |
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hwwrite(vortex->mmio, VORTEX_CTRL2, hwread(vortex->mmio, VORTEX_CTRL2) & ~CTRL2_GAME_ADCMODE); |
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return 0; |
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default: |
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return -1; |
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} |
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return 0; |
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} |
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int vortex_gameport_register(vortex_t *vortex) { |
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vortex->gameport = &gameport; |
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vortex->gameport->driver = vortex; |
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vortex->gameport->fuzz = 64; |
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vortex->gameport->read = vortex_game_read; |
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vortex->gameport->trigger = vortex_game_trigger; |
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vortex->gameport->cooked_read = vortex_game_cooked_read; |
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vortex->gameport->open = vortex_game_open; |
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gameport_register_port((struct gameport *)vortex->gameport); |
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/* printk(KERN_INFO "gameport%d: %s at speed %d kHz\n", |
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vortex->gameport->number, vortex->pci_dev->name, vortex->gameport->speed); |
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*/ |
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return 0; |
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} |
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int vortex_gameport_unregister(vortex_t *vortex) { |
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if (vortex->gameport != NULL) |
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gameport_unregister_port(vortex->gameport); |
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return 0; |
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} |