cregit-Linux how code gets into the kernel

Release 4.11 sound/pci/au88x0/au88x0_game.c

Directory: sound/pci/au88x0
/*
 *  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 IS_REACHABLE(CONFIG_GAMEPORT)


#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); }

Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela31100.00%2100.00%
Total31100.00%2100.00%


static void vortex_game_trigger(struct gameport *gameport) { vortex_t *vortex = gameport_get_port_data(gameport); hwwrite(vortex->mmio, VORTEX_GAME_LEGACY, 0xff); }

Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela31100.00%2100.00%
Total31100.00%2100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela105100.00%2100.00%
Total105100.00%2100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela9498.95%266.67%
Greg Kroah-Hartman11.05%133.33%
Total95100.00%3100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela6048.39%360.00%
Dmitry Torokhov5645.16%120.00%
Sudip Mukherjee86.45%120.00%
Total124100.00%5100.00%


static void vortex_gameport_unregister(vortex_t * vortex) { if (vortex->gameport) { gameport_unregister_port(vortex->gameport); vortex->gameport = NULL; } }

Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela2890.32%266.67%
Dmitry Torokhov39.68%133.33%
Total31100.00%3100.00%

#else
static inline int vortex_gameport_register(vortex_t * vortex) { return -ENOSYS; }

Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela1386.67%150.00%
Dmitry Torokhov213.33%150.00%
Total15100.00%2100.00%


static inline void vortex_gameport_unregister(vortex_t * vortex) { }

Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela880.00%150.00%
Dmitry Torokhov220.00%150.00%
Total10100.00%2100.00%

#endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela39983.30%440.00%
Dmitry Torokhov6313.15%110.00%
Sudip Mukherjee81.67%110.00%
Greg Kroah-Hartman40.84%110.00%
Paul Gortmaker30.63%110.00%
Fabian Frederick10.21%110.00%
Adrian Bunk10.21%110.00%
Total479100.00%10100.00%
Directory: sound/pci/au88x0
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