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Diffstat (limited to 'backends/platform/gp2x/gp2x-hw.cpp')
| -rw-r--r-- | backends/platform/gp2x/gp2x-hw.cpp | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/backends/platform/gp2x/gp2x-hw.cpp b/backends/platform/gp2x/gp2x-hw.cpp deleted file mode 100644 index 074c668b5f..0000000000 --- a/backends/platform/gp2x/gp2x-hw.cpp +++ /dev/null @@ -1,228 +0,0 @@ -/* ScummVM - Graphic Adventure Engine - * - * ScummVM is the legal property of its developers, whose names - * are too numerous to list here. Please refer to the COPYRIGHT - * file distributed with this source distribution. - * - * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - */ - -/* - * GP2X: Hardware Stuff. - * Thanks to Rlyeh, Snaff, Squidge, Hermes, PS2Reality and RobBrown - * for there help with us all getting to grips with this. - * - */ - -// Disable symbol overrides so that we can use system headers. -#define FORBIDDEN_SYMBOL_ALLOW_ALL - -#include "gp2x-common.h" - -#include "gp2x-hw.h" -#include "gp2x-mem.h" - -// Linux includes to let us goof about with the system in a 'standard' way. -#include <fcntl.h> -#include <pthread.h> -#include <signal.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <sys/mman.h> -#include <sys/ioctl.h> -#include <sys/soundcard.h> -#include <sys/time.h> -#include <unistd.h> - -extern "C" { -static unsigned long gp2x_dev[8]={0,0,0,0,0,0,0,0};//, gp2x_ticks_per_second; -} - -namespace GP2X_HW { - -enum { - VOLUME_NOCHG = 0, - VOLUME_DOWN = 1, - VOLUME_UP = 2, - VOLUME_CHANGE_RATE = 8, - VOLUME_MIN = 0, - VOLUME_INITIAL = 60, - VOLUME_MAX = 100 -}; - -int volumeLevel = VOLUME_INITIAL; - -/* system registers */ -static struct -{ - unsigned short SYSCLKENREG,SYSCSETREG,FPLLVSETREG,DUALINT920,DUALINT940,DUALCTRL940; -} -system_reg; - -static unsigned short dispclockdiv; - -static volatile unsigned short *MEM_REG; - -#define SYS_CLK_FREQ 7372800 - -void deviceInit() { - // Open devices - if (!gp2x_dev[0]) gp2x_dev[0] = open("/dev/mixer", O_RDWR); - if (!gp2x_dev[1]) gp2x_dev[1] = open("/dev/batt", O_RDONLY); - if (!gp2x_dev[2]) gp2x_dev[2] = open("/dev/mem", O_RDWR); -} - -void deviceDeinit() { - // Close devices - { - int i; - for (i=0;i<8;i++) - { - if (gp2x_dev[i]) - { - close(gp2x_dev[i]); - } - } - } - - MEM_REG[0x91c>>1] = system_reg.SYSCSETREG; - MEM_REG[0x910>>1] = system_reg.FPLLVSETREG; - MEM_REG[0x3B40>>1] = system_reg.DUALINT920; - MEM_REG[0x3B42>>1] = system_reg.DUALINT940; - MEM_REG[0x3B48>>1] = system_reg.DUALCTRL940; - MEM_REG[0x904>>1] = system_reg.SYSCLKENREG; - MEM_REG[0x924>>1] = dispclockdiv; - - unpatchMMU(); -} - -void mixerMoveVolume(int direction) { - if (volumeLevel <= 10) { - if (direction == VOLUME_UP) volumeLevel += VOLUME_CHANGE_RATE/2; - if (direction == VOLUME_DOWN) volumeLevel -= VOLUME_CHANGE_RATE/2; - } else { - if(direction == VOLUME_UP) volumeLevel += VOLUME_CHANGE_RATE; - if(direction == VOLUME_DOWN) volumeLevel -= VOLUME_CHANGE_RATE; - } - - if (volumeLevel < VOLUME_MIN) volumeLevel = VOLUME_MIN; - if (volumeLevel > VOLUME_MAX) volumeLevel = VOLUME_MAX; - - unsigned long soundDev = open("/dev/mixer", O_RDWR); - - if(soundDev) { - int vol = ((volumeLevel << 8) | volumeLevel); - ioctl(soundDev, SOUND_MIXER_WRITE_PCM, &vol); - close(soundDev); - } -} - -void setCpuspeed(unsigned int mhz) -{ - set_FCLK(mhz); - set_DCLK_Div(0); - set_920_Div(0); -} - -int getBattLevel() { - int devbatt; - unsigned short currentval=0; - devbatt = open("/dev/batt", O_RDONLY); - read (devbatt, ¤tval, 2); - close (devbatt); - return (currentval); -} - -void set_display_clock_div(unsigned div) -{ - div=((div & 63) | 64)<<8; - MEM_REG[0x924>>1]=(MEM_REG[0x924>>1] & ~(255<<8)) | div; -} - - -void set_FCLK(unsigned MHZ) -{ - unsigned v; - unsigned mdiv,pdiv=3,scale=0; - MHZ*=1000000; - mdiv=(MHZ*pdiv)/SYS_CLK_FREQ; - mdiv=((mdiv-8)<<8) & 0xff00; - pdiv=((pdiv-2)<<2) & 0xfc; - scale&=3; - v=mdiv | pdiv | scale; - MEM_REG[0x910>>1]=v; -} - - -void set_920_Div(unsigned short div) -{ - unsigned short v; - v = MEM_REG[0x91c>>1] & (~0x3); - MEM_REG[0x91c>>1] = (div & 0x7) | v; -} - - -void set_DCLK_Div( unsigned short div ) -{ - unsigned short v; - v = (unsigned short)( MEM_REG[0x91c>>1] & (~(0x7 << 6)) ); - MEM_REG[0x91c>>1] = ((div & 0x7) << 6) | v; -} - - -void Disable_940(void) -{ - MEM_REG[0x3B42>>1]; - MEM_REG[0x3B42>>1]=0; - MEM_REG[0x3B46>>1]=0xffff; - MEM_REG[0x3B48>>1]|= (1 << 7); - MEM_REG[0x904>>1]&=0xfffe; -} - -void gp2x_video_wait_vsync(void) -{ - MEM_REG[0x2846>>1]=(MEM_REG[0x2846>>1] | 0x20) & ~2; - while (!(MEM_REG[0x2846>>1] & 2)); -} - -} /* namespace GP2X_HW */ - -namespace GPH { - -enum { - /* Touchscreen TapMode */ - TAPMODE_LEFT = 0, - TAPMODE_RIGHT = 1, - TAPMODE_HOVER = 2 -}; - -int tapmodeLevel = TAPMODE_LEFT; - -void ToggleTapMode() { - if (tapmodeLevel == TAPMODE_LEFT) { - tapmodeLevel = TAPMODE_RIGHT; - } else if (tapmodeLevel == TAPMODE_RIGHT) { - tapmodeLevel = TAPMODE_HOVER; - } else if (tapmodeLevel == TAPMODE_HOVER) { - tapmodeLevel = TAPMODE_LEFT; - } else { - tapmodeLevel = TAPMODE_LEFT; - } -} - - -} /* namespace GPH */ |