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Diffstat (limited to 'tools/ioemu/iodev/gameport.cc')
| -rw-r--r-- | tools/ioemu/iodev/gameport.cc | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/tools/ioemu/iodev/gameport.cc b/tools/ioemu/iodev/gameport.cc new file mode 100644 index 0000000000..9adefa6551 --- /dev/null +++ b/tools/ioemu/iodev/gameport.cc @@ -0,0 +1,242 @@ +///////////////////////////////////////////////////////////////////////// +// $Id: gameport.cc,v 1.5 2003/12/29 21:48:56 cbothamy Exp $ +///////////////////////////////////////////////////////////////////////// +// +// Copyright (C) 2003 MandrakeSoft S.A. +// +// MandrakeSoft S.A. +// 43, rue d'Aboukir +// 75002 Paris - France +// http://www.linux-mandrake.com/ +// http://www.mandrakesoft.com/ +// +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Lesser General Public +// License as published by the Free Software Foundation; either +// version 2 of the License, or (at your option) any later version. +// +// This library 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 +// Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +// +// Standard PC gameport +// + +// Define BX_PLUGGABLE in files that can be compiled into plugins. For +// platforms that require a special tag on exported symbols, BX_PLUGGABLE +// is used to know when we are exporting symbols and when we are importing. +#define BX_PLUGGABLE + +#include "bochs.h" + +#ifdef __linux__ + +#include <linux/joystick.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <stdio.h> + +#elif defined(WIN32) + +#ifndef JOY_BUTTON1 +#define JOY_BUTTON1 1 +#define JOY_BUTTON2 2 +UINT STDCALL joyGetPos(UINT, LPJOYINFO); +#endif + +#define JOYSTICKID1 0 + +#endif + +#define LOG_THIS theGameport-> + +bx_gameport_c *theGameport = NULL; + + int +libgameport_LTX_plugin_init(plugin_t *plugin, plugintype_t type, int argc, char *argv[]) +{ + theGameport = new bx_gameport_c (); + bx_devices.pluginGameport = theGameport; + BX_REGISTER_DEVICE_DEVMODEL(plugin, type, theGameport, BX_PLUGIN_GAMEPORT); + return(0); // Success +} + + void +libgameport_LTX_plugin_fini(void) +{ +} + +bx_gameport_c::bx_gameport_c(void) +{ + put("GAME"); + settype(EXTFPUIRQLOG); +} + +bx_gameport_c::~bx_gameport_c(void) +{ + if (joyfd >= 0) close(joyfd); + BX_DEBUG(("Exit.")); +} + + + void +bx_gameport_c::init(void) +{ + // Allocate the gameport IO address range 0x200..0x207 + for (unsigned addr=0x200; addr<0x208; addr++) { + DEV_register_ioread_handler(this, read_handler, addr, "Gameport", 1); + DEV_register_iowrite_handler(this, write_handler, addr, "Gameport", 1); + } + + BX_GAMEPORT_THIS port = 0xf0; + BX_GAMEPORT_THIS write_usec = 0; + BX_GAMEPORT_THIS timer_x = 0; + BX_GAMEPORT_THIS timer_y = 0; + +#ifdef __linux__ + BX_GAMEPORT_THIS joyfd = open("/dev/input/js0", O_RDONLY); + if (BX_GAMEPORT_THIS joyfd >= 0) { + for (unsigned i=0; i<4; i++) poll_joydev(); + } +#elif defined(WIN32) + JOYINFO joypos; + if (joyGetPos(JOYSTICKID1, &joypos) == JOYERR_NOERROR) { + BX_GAMEPORT_THIS joyfd = 1; + } else { + BX_GAMEPORT_THIS joyfd = -1; + } +#else + BX_GAMEPORT_THIS joyfd = -1; +#endif +} + + void +bx_gameport_c::reset(unsigned type) +{ + // nothing for now +} + + void +bx_gameport_c::poll_joydev(void) +{ +#ifdef __linux__ + struct js_event e; + fd_set joyfds; + struct timeval tv; + + memset(&tv, 0, sizeof(tv)); + FD_ZERO(&joyfds); + FD_SET(BX_GAMEPORT_THIS joyfd, &joyfds); + e.type = 0; + if (select(BX_GAMEPORT_THIS joyfd+1, &joyfds, NULL, NULL, &tv)) { + read(BX_GAMEPORT_THIS joyfd, &e, sizeof(struct js_event)); + if (e.type & JS_EVENT_BUTTON) { + if (e.value == 1) { + BX_GAMEPORT_THIS port &= ~(0x10 << e.number); + } else { + BX_GAMEPORT_THIS port |= (0x10 << e.number); + } + } + if (e.type & JS_EVENT_AXIS) { + if (e.number == 0) { + BX_GAMEPORT_THIS delay_x = 25 + ((e.value + 0x8000) / 60); + } + if (e.number == 1) { + BX_GAMEPORT_THIS delay_y = 25 + ((e.value + 0x8000) / 62); + } + } + } +#elif defined(WIN32) + JOYINFO joypos; + if (joyGetPos(JOYSTICKID1, &joypos) == JOYERR_NOERROR) { + if (joypos.wButtons & JOY_BUTTON1) { + BX_GAMEPORT_THIS port &= ~0x10; + } else { + BX_GAMEPORT_THIS port |= 0x10; + } + if (joypos.wButtons & JOY_BUTTON2) { + BX_GAMEPORT_THIS port &= ~0x20; + } else { + BX_GAMEPORT_THIS port |= 0x20; + } + BX_GAMEPORT_THIS delay_x = 25 + (joypos.wXpos / 60); + BX_GAMEPORT_THIS delay_y = 25 + (joypos.wYpos / 60); + } +#endif +} + + + // static IO port read callback handler + // redirects to non-static class handler to avoid virtual functions + + Bit32u +bx_gameport_c::read_handler(void *this_ptr, Bit32u address, unsigned io_len) +{ +#if !BX_USE_GAME_SMF + bx_gameport_c *class_ptr = (bx_gameport_c *) this_ptr; + + return( class_ptr->read(address, io_len) ); +} + + + Bit32u +bx_gameport_c::read(Bit32u address, unsigned io_len) +{ +#else + UNUSED(this_ptr); +#endif // !BX_USE_GAME_SMF + Bit64u usec; + + if (BX_GAMEPORT_THIS joyfd >= 0) { + poll_joydev(); + usec = bx_pc_system.time_usec(); + if (BX_GAMEPORT_THIS timer_x) { + if ((usec - BX_GAMEPORT_THIS write_usec) >= BX_GAMEPORT_THIS delay_x) { + BX_GAMEPORT_THIS port &= 0xfe; + BX_GAMEPORT_THIS timer_x = 0; + } + } + if (BX_GAMEPORT_THIS timer_y) { + if ((usec - BX_GAMEPORT_THIS write_usec) >= BX_GAMEPORT_THIS delay_y) { + BX_GAMEPORT_THIS port &= 0xfd; + BX_GAMEPORT_THIS timer_y = 0; + } + } + } else { + BX_DEBUG(("read: joystick not present")); + } + return BX_GAMEPORT_THIS port; +} + + + // static IO port write callback handler + // redirects to non-static class handler to avoid virtual functions + + void +bx_gameport_c::write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len) +{ +#if !BX_USE_GAME_SMF + bx_gameport_c *class_ptr = (bx_gameport_c *) this_ptr; + + class_ptr->write(address, value, io_len); +} + + void +bx_gameport_c::write(Bit32u address, Bit32u value, unsigned io_len) +{ +#else + UNUSED(this_ptr); +#endif // !BX_USE_GAME_SMF + + BX_GAMEPORT_THIS write_usec = bx_pc_system.time_usec(); + BX_GAMEPORT_THIS timer_x = 1; + BX_GAMEPORT_THIS timer_y = 1; + BX_GAMEPORT_THIS port |= 0x0f; +} |