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launcher2.c
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launcher2.c
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/*
_____ ___ ____
____| | ____| PS2 Open Source Project
| ___| |____
---------------------------------------------------------------------------
Copyright (C) 2008 - Neme & jimmikaelkael (www.psx-scene.com)
This program is free software; you can redistribute it and/or modify
it under the terms of the Free McBoot License.
This program and any related documentation is provided "as is"
WITHOUT ANY WARRANTIES, either express or implied, including, but not
limited to, implied warranties of fitness for a particular purpose. The
entire risk arising out of use or performance of the software remains
with you.
In no event shall the author be liable for any damages whatsoever
(including, without limitation, damages to your hardware or equipment,
environmental damage, loss of health, or any kind of pecuniary loss)
arising out of the use of or inability to use this software or
documentation, even if the author has been advised of the possibility of
such damages.
You should have received a copy of the Free McBoot License along with
this program; if not, please report at psx-scene :
http://psx-scene.com/forums/freevast/
---------------------------------------------------------------------------
Init module for cvdvd init fix and multilanguage fix are from :
ffgriever (www.psx-scene.com)
Modifications for working just from mc0:/BOOT/ are from :
Howling Wolf & Chelsea
---------------------------------------------------------------------------
*/
#define FMCBVER "1.0.0"
#include <tamtypes.h>
#include <kernel.h>
#include <sifrpc.h>
#include <fileio.h>
#include <iopcontrol.h>
#include <iopheap.h>
#include <sbv_patches.h>
#include <loadfile.h>
#include <libpad.h>
#include <string.h>
#include <stdio.h>
#include <osd_config.h>
#include <libcdvdmod.h>
#include <malloc.h>
#include <debug.h>
#include "splash.h"
//#include "loading.h"
void _ps2sdk_libc_init() {}
void _ps2sdk_libc_deinit() {}
#define MAX_PATH 260
extern void iomanx_irx;
extern int size_iomanx_irx;
extern void init_irx;
extern int size_init_irx;
extern void chkesr_irx;
extern int size_chkesr_irx;
extern void elf_loader;
extern int size_elf_loader;
#define DEBUG
#define RGBA(r, g, b, a) \
((u64)(r) | ((u64)(g) << 8) | ((u64)(b) << 16) | ((u64)(a) << 24))
#ifdef DEBUG
#define SETBG(r, g, b) *(u64 *)0x120000e0 = RGBA(r, g, b, 0)
#else
#define SETBG(...)
#endif
// GS related
#define NTSC 2
#define PAL 3
int VMode;
// Externals:
// chkesr_rpc.c
extern int chkesr_rpc_Init(void);
extern int Check_ESR_Disc(void);
// timer.c
extern void TimerInit(void);
extern u64 Timer(void);
extern void TimerEnd(void);
// pad.c
extern u32 new_pad;
extern int readPad(void);
extern void waitAnyPadReady(void);
extern int setupPad(void);
// gs.c
typedef enum {
PAL_640_512_32,
NTSC_640_448_32
} gs_video_mode;
extern void gs_reset(void);
extern int gs_init(gs_video_mode mode);
extern void gs_set_fill_color(u8 r, u8 g, u8 b);
extern void gs_fill_rect(u16 x0, u16 y0, u16 x1, u16 y1);
extern u16 gs_get_max_x(void);
extern u16 gs_get_max_y(void);
extern void gs_print_bitmap(u16 x, u16 y, u16 w, u16 h, u32 *data);
// function prototypes
void wipeUserMem(void);
int file_exists(char *filepath);
int get_CNF_string(unsigned char **CNF_p_p, unsigned char **name_p_p, unsigned char **value_p_p);
int loadConfig(void);
int Read_SYSTEM_CNF(char *boot_path, char *ver);
u8 *find_bytes_with_mask(u8 *buf, u32 bufsize, u8 *bytes, u8 *mask, u32 len);
u8 *find_string(const u8 *string, u8 *buf, u32 bufsize);
const char *get_string_pointer(const char **strings, u32 index);
int handle_menu_selection(int selected);
void patch_menu(u8 *osd);
void draw_menu_item_selected(int X, int Y, u32 *color, int alpha, const char *string, int num);
void draw_menu_item_unselected(int X, int Y, u32 *color, int alpha, const char *string, int num);
void patch_draw_menu(u8 *osd);
void get_buttons_panel_type(int type);
void draw_nonselectable_item_left(int X, int Y, u32 *color, int alpha, const char *string);
void draw_nonselectable_item_right(int X, int Y, u32 *color, int alpha, const char *string);
void draw_icon_left(int type, int X, int Y, int alpha);
void draw_icon_right(int type, int X, int Y, int alpha);
void patch_button_panel(u8 *osd);
int deviated_exec_dvdv(void);
int deviated_exec_ps2dvd(void);
void patch_auto_launch(u8 *osd);
void patch_skip_disc(u8 *osd);
void patch_loop_menu(u8 *osd);
void patch_force_video_mode(u8 *osd);
void patch_skip_hdd(u8 *osd);
void patch_and_execute_osdsys(void *epc, void *gp);
void IOP_Reset(void);
void load_modules(void);
void load_chkesr_module(void);
void CleanUp(int iop_reset);
void OSDSYS_CleanUp(void);
void launch_osdsys(void);
void check_path(void);
void reload_osdsys(void);
void load_elf(char *elf_path);
void check_ESR_paths(void);
int FastBoot_Disc(void);
void check_exec_paths(void);
void Set_Default_Settings(void);
void SetOsdConfig(void);
void FMCB_loader_Init(void);
// region letter list
char *MG_region[8] = {"A", "E", "U", "J", "M", "O", "R", "C"};
u8 MG_REGION[1];
// Paths that can be changed with those from cnf.
char esr_path[3][MAX_PATH] = {
"mass:/BOOT/ESR.ELF",
"mc?:/BOOT/ESR.ELF",
"mc?:/B?DATA-SYSTEM/ESR.ELF"};
// Hardcoded paths
char default_path[15][30] = {
"mc?:/BOOT/ULE.ELF", // Auto index : 0
"mc?:/BOOT/BOOT2.ELF",
"mc?:/APPS/ULE.ELF",
"mass:/BOOT/BOOT4.ELF", // L2 index : 3
"mc?:/BOOT/BOOT4.ELF",
"mc?:/B?DATA-SYSTEM/BOOT4.ELF",
"mass:/BOOT/BOOT2.ELF", // R2 index : 6
"mc?:/BOOT/BOOT2.ELF",
"mc?:/B?DATA-SYSTEM/BOOT2.ELF",
"mass:/BOOT/BOOT3.ELF", // L1 index : 9
"mc?:/BOOT/BOOT3.ELF",
"mc?:/B?DATA-SYSTEM/BOOT3.ELF",
"mass:/RESCUE.ELF", // R1 index : 12
"mc?:/BOOT/BOOT1.ELF",
"mc?:/B?DATA-SYSTEM/BOOT1.ELF"};
char rescue_path[30] = "mass:/RESCUE.ELF";
char cnf_path_usb[30] = "mass:/FUNTUNA.CNF";
char cnf_path[30] = "mc0:/BOOT/FUNTUNA.CNF";
/**********************USBD.IRX******************************/
char usbd_irx_path[30] = "mc0:/BOOT/USBD.IRX";
char usbd_irx_path_sysconf[30] = "mc0:/SYS-CONF/USBD.IRX";
/**********************USBHDFSD.IRX************************/
char usb_mass_irx_path[30] = "mc0:/BOOT/USBHDFSD.IRX";
char usb_mass_irx_path_sysconf[30] = "mc0:/SYS-CONF/USBHDFSD.IRX";
// DVD-Player Update path
char dvdpl_path[] = "mc0:/BREXEC-DVDPLAYER/dvdplayer.elf";
// Buttons ID must be kept in this order !
// They are readed in a loop depending on their libpad value
char LK_ID[17][10] = {
"Auto",
"Select", // 0x0001
"L3", // 0x0002
"R3", // 0x0004
"Start", // 0x0008
"Up", // 0x0010
"Right", // 0x0020
"Down", // 0x0040
"Left", // 0x0080
"L2", // 0x0100
"R2", // 0x0200
"L1", // 0x0400
"R1", // 0x0800
"Triangle", // 0x1000
"Circle", // 0x2000
"Cross", // 0x4000
"Square" // 0x8000
};
#define NEWITEMS 100 // the number of max added menu items in osdsys
// OSDSYS settings struct, contains all configurable OSDSYS settings
// takes 1700 bytes with 100 items
typedef struct
{
int hack_enabled; // Enable/Disable OSDSYS hacking
int skip_mc; // Enable/Disable MC Update check
int skip_hdd; // Enable/Disable HDD Update check
int skip_disc; // Enable/Disable disc boot while inserting them while OSDSYS is loaded
int skip_logo; // Enable/Disable Sony Entertainment logo while loading OSDSYS
int goto_inner_browser; // Enable/Disable goes to inner_browser while loading OSDSYS
char *video_mode; // Set OSDSYS Video mode : AUTO, PAL or NTSC
int scroll_menu; // Enable/Disable scrolling menu
int menu_x; // Set menu X coordinate (menu center)
int menu_y; // Set menu Y coordinate (menu center), only for scroll menu
int enter_x; // Set "Enter" button X coordinate (at main OSDSYS menu)
int enter_y; // Set "Enter" button Y coordinate (at main OSDSYS menu)
int version_x; // Set "Version" button X coordinate (at main OSDSYS menu)
int version_y; // Set "Version" button Y coordinate (at main OSDSYS menu)
int cursor_max_velocity; // Set the cursors movement amplitude, only for scroll menu
int cursor_acceleration; // Set the cursors speed, only for scroll menu
char *left_cursor; // Set the left cursor text, only for scroll menu
char *right_cursor; // Set the right cursor text, only for scroll menu
char *menu_top_delimiter; // Set the top menu delimiter text, only for scroll menu
char *menu_bottom_delimiter; // Set the bottom menu delimiter text, only for scroll menu
u32 selected_color[4]; // Set the menu items color when selected
u32 unselected_color[4]; // Set the menu items color when not selected
int num_displayed_items; // Set the number of menu items displayed, only for scroll menu
char *item_name[NEWITEMS]; // Set menu items text
char *item_path[NEWITEMS][3]; // Set 3 paths for each menu items
} osdsys_settings;
// FMCB settings struct, loader settings
typedef struct
{
int pad_delay; // Set the total pad press delay
int debug_screen; // Enable/Disable green debug screen when all 3 paths are not valid
int fastboot; // Enable/Disable FastBoot for PS1, PS2, ESR, Video DVD, Audio CD Discs
char *p_LK_Path[17][3]; // Paths pointers for pad
char *p_ESR_Path[3]; // Paths pointers for ESR
int autolaunch_patch; // Enable/Disable autolaunch_patch (The one that allows ESR disc to be
} fmcb_settings; // booted, and PS2 DVD fix on some older PS2), not user configureable
// variables to hold FMCB & OSDSYS settings
osdsys_settings OSDSYS;
fmcb_settings FMCB;
char romver_region_char[1];
char *p_ExecPath;
char *p_pad_ExecPath[3];
char cdboot_path[MAX_PATH];
char eromdrv_arg[MAX_PATH];
char dvdpl_arg[MAX_PATH];
int item_cnt = 0; // Counter for OSDSYS menu printable items (existing and checked)
int pad_inited = 0;
int timer_inited = 0;
int cdvdrpc_inited = 0;
int fastboot_delay = 10; // not user configurable, 10ms minimum
int old_dvdelf = 1; // DVDELF version, Fat PS2 one by default
char *valid_ESR_path; // Tested valid ESR path
u8 romver[16];
int call_from_osdsys = 0; // flag to be set to 1 when our functions are called from OSDSYS
//int loading_print = 0; // flag to set to 1 if we want to print "loading" bitmap when load_elf func is called
u32 bios_version = 0; // Bios revision (acquired from init.irx)
int isEarlyJap = 0; // To determine if the ps2 is an early Jap
int dummy_memalloc = 1;
int boot_from_mc = 0; // To determine from which mc FMCB has been booted
unsigned char *CNF_RAM_p; // pointer to CNF file into memory
//--------------------------------------------------------------
void wipeUserMem(void)
{ // Clean user memory
int i;
for (i = 0x100000; i < 0x2000000; i += 64) {
asm(
"\tsq $0, 0(%0) \n"
"\tsq $0, 16(%0) \n"
"\tsq $0, 32(%0) \n"
"\tsq $0, 48(%0) \n" ::"r"(i));
}
}
//--------------------------------------------------------------
int file_exists(char *filepath)
{
int fdn;
fdn = open(filepath, O_RDONLY);
if (fdn < 0)
return 0;
close(fdn);
return 1;
}
//________________ From uLaunchELF ______________________
//---------------------------------------------------------------------------
// get_CNF_string is the main CNF parser called for each CNF variable in a
// CNF file. Input and output data is handled via its pointer parameters.
// The return value flags 'false' when no variable is found. (normal at EOF)
//---------------------------------------------------------------------------
int get_CNF_string(unsigned char **CNF_p_p,
unsigned char **name_p_p,
unsigned char **value_p_p)
{
unsigned char *np, *vp, *tp = *CNF_p_p;
start_line:
while ((*tp <= ' ') && (*tp > '\0'))
tp += 1; //Skip leading whitespace, if any
if (*tp == '\0')
return 0; //but exit at EOF
np = tp; //Current pos is potential name
if (*tp < 'A') //but may be a comment line
{ //We must skip a comment line
while ((*tp != '\r') && (*tp != '\n') && (*tp > '\0'))
tp += 1; //Seek line end
goto start_line; //Go back to try next line
}
while ((*tp >= 'A') || ((*tp >= '0') && (*tp <= '9')))
tp += 1; //Seek name end
if (*tp == '\0')
return 0; //but exit at EOF
while ((*tp <= ' ') && (*tp > '\0'))
*tp++ = '\0'; //zero&skip post-name whitespace
if (*tp != '=')
return 0; //exit (syntax error) if '=' missing
*tp++ = '\0'; //zero '=' (possibly terminating name)
while ((*tp <= ' ') && (*tp > '\0') //Skip pre-value whitespace, if any
&& (*tp != '\r') && (*tp != '\n') //but do not pass the end of the line
&& (*tp != '\7') //allow ctrl-G (BEL) in value
)
tp += 1;
if (*tp == '\0')
return 0; //but exit at EOF
vp = tp; //Current pos is potential value
while ((*tp != '\r') && (*tp != '\n') && (*tp != '\0'))
tp += 1; //Seek line end
if (*tp != '\0')
*tp++ = '\0'; //terminate value (passing if not EOF)
while ((*tp <= ' ') && (*tp > '\0'))
tp += 1; //Skip following whitespace, if any
*CNF_p_p = tp; //return new CNF file position
*name_p_p = np; //return found variable name
*value_p_p = vp; //return found variable value
return 1; //return control to caller
} //Ends get_CNF_string
//---------------------------------------------------------------------------------------
char *replace_var(char *str, char *orig, char *rep)
{
static char buffer[60];
char *p;
if (!(p = strstr(str, orig))) // Is 'orig' even in 'str'?
return str;
strncpy(buffer, str, p - str); // Copy characters from 'str' start to 'orig' st$
buffer[p - str] = '\0';
sprintf(buffer + (p - str), "%s%s", rep, p + strlen(orig));
return buffer;
}
//---------------------------------------------------------
//replace_wildcards
//---------------------------------------------------------
//----------------------------------------------------------------
// Load CNF
//----------------------------------------------------------------
int loadConfig(void)
{
char *CNF_LOADED;
char *version = "1.0.1";
int i, j, fd, var_cnt, CNF_version;
size_t CNF_size;
char tsts[64];
char path[MAX_PATH];
unsigned char *CNF_p, *name, *value;
char hexvalue_buf[4];
u8 *dummy_p = NULL;
u32 dummy_sz;
strcpy(path, cnf_path_usb);
fd = -1;
fd = open(path, O_RDONLY); // Try to open cnf from USB first
if (fd < 0) {
strcpy(path, cnf_path);
fd = -1;
if (boot_from_mc == 1) //if booting from MC1
path[2] = '1'; //try with MC1 first
fd = open(path, O_RDONLY); // Try to open cnf from the MC that FMCB was booted from
if (fd < 0) {
if (boot_from_mc == 1)
path[2] = '0';
else
path[2] = '1';
fd = -1;
fd = open(path, O_RDONLY); // Try to open cnf from the other MC
if (boot_from_mc == 1)
CNF_LOADED = "mc0"; //set %CNF% wildcard
else
CNF_LOADED = "mc1"; //set %CNF% wildcard
} else {
if (boot_from_mc == 1)
CNF_LOADED = "mc1"; //set %CNF% wildcard
else
CNF_LOADED = "mc0"; //set %CNF% wildcard
}
if (fd < 0) {
failed_load:
return 0; // This point is only reached after succefully opening CNF
}
} else
CNF_LOADED = "mass"; //set %CNF% wildcard
CNF_size = lseek(fd, 0, SEEK_END);
lseek(fd, 0, SEEK_SET);
//init_scr();
//scr_clear();
if (dummy_memalloc) {
// This part ensures that CNF content loads at 0x01f00000 leaving sufficient space for big cnf files
// If we don't do this, memory will be allocated just after the loader, something like 0x000ecb00
// leading to leave unsufficient space for big cnf files since OSDSYS needs to load at 0x00100000
//scr_printf("\n\t allocating dummy space\n");
dummy_p = (char *)malloc(32);
dummy_sz = 0x01f00000 - (u32)(dummy_p)-16;
free(dummy_p);
dummy_p = (char *)malloc(dummy_sz);
//scr_printf("\t dummy_sz: %08x\n", (u32)dummy_sz);
//scr_printf("\t dummy_p: %08x\n", (u32)dummy_p);
}
CNF_RAM_p = (char *)malloc(CNF_size);
//scr_printf("\n\t CNF_RAM_p: %08x\n", (u32)CNF_RAM_p);
if (dummy_p != NULL) {
free(dummy_p);
dummy_memalloc = 0;
}
CNF_p = CNF_RAM_p;
if (CNF_p == NULL) {
close(fd);
goto failed_load;
}
read(fd, CNF_p, CNF_size); // Read CNF as one long string
close(fd);
CNF_p[CNF_size] = '\0'; // Terminate the CNF string
CNF_version = 0; // The CNF version is still unidentified
for (var_cnt = 0; get_CNF_string(&CNF_p, &name, &value); var_cnt++) {
// A variable was found, now we dispose of its value.
if (!strcmp(name, "CNF_version")) {
CNF_version = atoi(value);
continue;
} else if (CNF_version == 0) {
goto failed_load; // Refuse unidentified CNF
}
if (!strcmp(name, "OSDSYS_video_mode")) {
OSDSYS.video_mode = value;
continue;
}
for (i = 0; i < 3; i++) {
sprintf(tsts, "ESR_Path_E%d", i + 1);
if (!strcmp(name, tsts)) {
FMCB.p_ESR_Path[i] = value;
continue;
}
}
if (!strcmp(name, "pad_delay")) {
FMCB.pad_delay = atoi(value);
continue;
}
if (!strcmp(name, "hacked_OSDSYS")) {
OSDSYS.hack_enabled = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_scroll_menu")) {
OSDSYS.scroll_menu = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_menu_x")) {
OSDSYS.menu_x = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_menu_y")) {
OSDSYS.menu_y = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_enter_x")) {
OSDSYS.enter_x = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_enter_y")) {
OSDSYS.enter_y = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_version_x")) {
OSDSYS.version_x = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_version_y")) {
OSDSYS.version_y = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_cursor_max_velocity")) {
OSDSYS.cursor_max_velocity = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_cursor_acceleration")) {
OSDSYS.cursor_acceleration = atoi(value);
continue;
} ///CNF READER
if (!strcmp(name, "OSDSYS_left_cursor")) {
OSDSYS.left_cursor = value;
continue;
}
if (!strcmp(name, "OSDSYS_right_cursor")) {
OSDSYS.right_cursor = value;
continue;
}
if (!strcmp(name, "OSDSYS_menu_top_delimiter")) {
version[strlen(version)] = '0'; // kill null terminator (besause the string might continue after wildcard)
value = replace_var(value, "%VER%", version);
OSDSYS.menu_top_delimiter = value;
continue;
}
if (!strcmp(name, "OSDSYS_menu_bottom_delimiter")) {
/*if (!strcmp(value, "@CNFPATH"))
{
char* vall = "c0r0.60y+99Loaded CNF %CNF%y-00r0.00";;
CNF_LOADED[strlen(CNF_LOADED)] = ':';
///sprintf(vall,"c0r0.60y+99Loaded CNF %%CNF%%y-00r0.00");
OSDSYS.menu_bottom_delimiter = replace_var(vall, "%CNF%", CNF_LOADED);
continue;
}//*/
OSDSYS.menu_bottom_delimiter = value;
continue;
}
if (!strcmp(name, "OSDSYS_num_displayed_items")) {
OSDSYS.num_displayed_items = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_Skip_Disc")) {
OSDSYS.skip_disc = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_Skip_Logo")) {
OSDSYS.skip_logo = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_Inner_Browser")) {
OSDSYS.goto_inner_browser = atoi(value);
continue;
}
if (!strcmp(name, "FastBoot")) {
FMCB.fastboot = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_Skip_MC")) {
OSDSYS.skip_mc = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_Skip_HDD")) {
OSDSYS.skip_hdd = atoi(value);
continue;
}
if (!strcmp(name, "Debug_Screen")) {
FMCB.debug_screen = atoi(value);
continue;
}
if (!strcmp(name, "OSDSYS_selected_color")) {
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
hexvalue_buf[j] = value[j];
}
OSDSYS.selected_color[i] = strtol(hexvalue_buf, NULL, 16);
value += 5;
}
continue;
}
if (!strcmp(name, "OSDSYS_unselected_color")) {
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
hexvalue_buf[j] = value[j];
}
OSDSYS.unselected_color[i] = strtol(hexvalue_buf, NULL, 16);
value += 5;
}
continue;
}
for (i = 0; i < NEWITEMS; i++) {
sprintf(tsts, "name_OSDSYS_ITEM_%d", i + 1);
if (!strcmp(name, tsts)) {
OSDSYS.item_name[i] = value;
item_cnt++;
break;
}
}
for (i = 0; i < NEWITEMS; i++) {
for (j = 0; j < 3; j++) {
sprintf(tsts, "path%1d_OSDSYS_ITEM_%d", j + 1, i + 1);
if (!strcmp(name, tsts)) {
OSDSYS.item_path[i][j] = value;
break;
}
}
}
for (i = 0; i < 17; i++) {
for (j = 0; j < 3; j++) {
sprintf(tsts, "LK_%s_E%d", LK_ID[i], j + 1);
if (!strcmp(name, tsts)) {
FMCB.p_LK_Path[i][j] = value;
break;
}
}
}
} // ends for
// We don't want to release CNF_RAM_p now as we have pointers to it.
//free(CNF_RAM_p);
return 1;
}
//----------------------------------------------------------------
int Read_SYSTEM_CNF(char *boot_path, char *ver)
{
// Returns disc type : 0 = failed; 1 = PS1; 2 = PS2;
int var_cnt;
size_t CNF_size;
unsigned char *RAM_p, *CNF_p, *name, *value;
int fd = -1;
int Disc_Type = -1; // -1 = Internal : Not Tested;
//place 3 question mark in ver string
strcpy(ver, "???");
fd = open("cdrom0:\\SYSTEM.CNF;1", O_RDONLY);
if (fd < 0) {
failed_load:
if (Disc_Type == -1) {
// Test PS1 special cases
if (file_exists("cdrom0:\\PSXMYST\\MYST.CCS;1")) {
strcpy(boot_path, "SLPS_000.24");
Disc_Type = 1;
} else if (file_exists("cdrom0:\\CDROM\\LASTPHOT\\ALL_C.NBN;1")) {
strcpy(boot_path, "SLPS_000.65");
Disc_Type = 1;
} else if (file_exists("cdrom0:\\PSX.EXE;1")) {
//place 3 question mark in pathname
strcpy(boot_path, "???");
Disc_Type = 1;
}
}
if (Disc_Type == -1)
Disc_Type = 0;
return Disc_Type;
} // This point is only reached after succefully opening CNF
Disc_Type = 0;
CNF_size = lseek(fd, 0, SEEK_END);
lseek(fd, 0, SEEK_SET);
RAM_p = (char *)malloc(CNF_size);
CNF_p = RAM_p;
if (CNF_p == NULL) {
close(fd);
goto failed_load;
}
read(fd, CNF_p, CNF_size); // Read CNF as one long string
close(fd);
CNF_p[CNF_size] = '\0'; // Terminate the CNF string
strcpy(boot_path, "???"); //place 3 question mark in boot path
for (var_cnt = 0; get_CNF_string(&CNF_p, &name, &value); var_cnt++) {
// A variable was found, now we dispose of its value.
if (!strcmp(name, "BOOT2")) { // check for BOOT2 entry
strcpy(boot_path, value);
Disc_Type = 2; // If found, PS2 disc type
break;
}
if (!strcmp(name, "BOOT")) { // check for BOOT entry
strcpy(boot_path, value);
Disc_Type = 1; // If found, PS1 disc type
continue;
}
if (!strcmp(name, "VER")) { // check for VER entry
strcpy(ver, value);
continue;
}
} // ends for
free(RAM_p);
return Disc_Type;
}
//________________ Neme's OSDSYS loading & hacking code ______________________
#define OSD_MAGIC 0x39390000 // arbitrary number to identify added menu items
// Define the new items here.
// Then define their behaviour in the handle_menu_selection() function.
static char *menuitems[NEWITEMS];
//static int menuitem_index[NEWITEMS];
static char *menuitem_path[NEWITEMS];
static u32 osdmenu[4 + NEWITEMS * 2];
struct osd_menu_info
{
u32 unknown1;
u32 *menu_ptr;
u32 num_entries;
u32 unknown2;
u32 curr_selection;
};
static struct osd_menu_info *menuinfo = NULL;
static u32 execps2_code[] = {
0x24030007, // li v1, 7
0x0000000c, // syscall
0x03e00008, // jr ra
0x00000000 // nop
};
static u32 execps2_mask[] = {
0xffffffff,
0xffffffff,
0xffffffff,
0xffffffff};
static u32 pattern1[] = {
0x00000001, // unknown
0x00000000, // pointer to osdmenu
0x00000002, // number of entries
0x00000003, // unknown
0x00000000 // current selection
};
static u32 pattern1_mask[] = {
0xffffffff,
0xff800000,
0xffffffff,
0xffffffff,
0xffffffff};
static u32 pattern2[] = {
// Search pattern in the osd string function:
0x10000005, // beq zero, zero, L2
0x8c620000, // lw v0, $xxxx(v1)
0x00101880, // L1: sll v1, s0, 2 # string index * 4
0x8c440000, // lw a0, $xxxx(v0) # osd string pointer array
0x00641821, // addu v1, v1, a0 # byte offset into array
0x8c620000, // lw v0, $0000(v1) # pointer to string
0xdfbf0010 // L2: ld ra, $0010(sp)
};
static u32 pattern2_mask[] = {
0xffffffff,
0xffff0000,
0xffffffff,
0xffff0000,
0xffffffff,
0xffffffff,
0xffffffff};
static u32 pattern3[] = {
// Search pattern in the user input handling function:
0x1000000e, // beq zero, zero, exit
0xdfbf0010, // ld ra, $0010(sp)
0x24040001, // L1: li a0, 1 # the 2nd menu item (sys conf)
0x8c430000, // lw v1, $xxxx(v0) # current selection
0x1464000a, // bne v1, a0, exit # sys config not selected?
0xdfbf0010, // ld ra, $0010(sp)
0x0c000000, // jal StartSysConfig
0x00000000, // nop
0x10000006, // beq zero, zero, exit
0xdfbf0010 // ld ra, $0010(sp)
};
static u32 pattern3_mask[] = {
0xffffffff,
0xffffffff,
0xffffffff,
0xffff0000,
0xffffffff,
0xffffffff,
0xfc000000,
0xffffffff,
0xffffffff,
0xffffffff};
//--------------------------------------------------------------
u8 *find_bytes_with_mask(u8 *buf, u32 bufsize, u8 *bytes, u8 *mask, u32 len)
{
u32 i, j;
for (i = 0; i < bufsize - len; i++) {
for (j = 0; j < len; j++) {
if ((buf[i + j] & mask[j]) != bytes[j])
break;
}
if (j == len)
return &buf[i];
}
return NULL;
}
//--------------------------------------------------------------
u8 *find_string(const u8 *string, u8 *buf, u32 bufsize)
{
u32 i;
const u8 *s, *p;
for (i = 0; i < bufsize; i++) {
s = string;
for (p = buf + i; *s && *s == *p; s++, p++)
;
if (!*s)
return (buf + i);
}
return NULL;
}
//--------------------------------------------------------------
const char *get_string_pointer(const char **strings, u32 index)
{
if ((index & 0xffff0000) == OSD_MAGIC)
return menuitems[index & 0xffff];
return strings[index];
}
//--------------------------------------------------------------
int handle_menu_selection(int selected)
{
if (selected == 1)
return 1;
//if (selected >= 2 + NEWITEMS)
if (selected >= 2 + item_cnt)
return 0;
if ((selected - 2) >= 0) {
call_from_osdsys = 1;
//loading_print = 0;
load_elf(menuitem_path[selected - 2]);
}
return 0;
}
//--------------------------------------------------------------
void patch_menu(u8 *osd)
{
u8 *ptr;
u32 tmp, menu_addr, p2_addr, p3_addr, i;
//------------------------------------------------------------------------
// Search for all patterns and return if one of them not found
//------------------------------------------------------------------------
for (tmp = 0; tmp < 0x100000; tmp = (u32)(ptr - osd + 4)) {
ptr = find_bytes_with_mask(osd + tmp, 0x100000 - tmp, (u8 *)pattern1, (u8 *)pattern1_mask, sizeof(pattern1));
if (!ptr)
return;
if (_lw((u32)ptr + 4) == (u32)ptr - 4 * 4)
break;
}
menu_addr = (u32)ptr;
menuinfo = (struct osd_menu_info *)menu_addr;
ptr = find_bytes_with_mask(osd, 0x00100000, (u8 *)pattern2, (u8 *)pattern2_mask, sizeof(pattern2));
if (!ptr)
return;
p2_addr = (u32)ptr;
ptr = find_bytes_with_mask(osd, 0x00100000, (u8 *)pattern3, (u8 *)pattern3_mask, sizeof(pattern3));
if (!ptr)
return;
p3_addr = (u32)ptr;
//------------------------------------------------------------------------
// Patch the osd string function
//------------------------------------------------------------------------
tmp = 0x0c000000;
tmp |= ((u32)get_string_pointer >> 2);
_sw(0x0200282d, p2_addr + 2 * 4); // daddu a1, s0, zero
// lw a0, $xxxx(v0)
_sw(tmp, p2_addr + 4 * 4); // jal get_string_pointer
_sw(0x00000000, p2_addr + 5 * 4); // nop
//------------------------------------------------------------------------
// Patch the user input handling function
//------------------------------------------------------------------------
tmp = 0x0c000000;
tmp |= ((u32)handle_menu_selection >> 2);
_sw(tmp, p3_addr + 2 * 4); // jal handle_menu_selection
tmp = _lw(p3_addr + 3 * 4) & 0xffff;
tmp |= 0x8c440000;
_sw(tmp, p3_addr + 3 * 4); // lw a0, $xxxx(v0)
_sw(0x1040000a, p3_addr + 4 * 4); // beq v0, zero, exit
//------------------------------------------------------------------------
// Build the osd menu
//------------------------------------------------------------------------
osdmenu[0] = _lw(menu_addr - 4 * 4); // "Browser"
osdmenu[1] = _lw(menu_addr - 3 * 4);
osdmenu[2] = _lw(menu_addr - 2 * 4); // "System Configuration"
osdmenu[3] = _lw(menu_addr - 1 * 4);
//for (i = 0; i < NEWITEMS; i++) {
for (i = 0; i < item_cnt; i++) {
osdmenu[4 + i * 2] = OSD_MAGIC + i;
osdmenu[5 + i * 2] = 0;
}
menuinfo->menu_ptr = osdmenu; // store menu pointer
menuinfo->num_entries = 2 + item_cnt; // store number of menu items
//menuinfo->num_entries = 2 + NEWITEMS;
}
//=========================================================================
// The draw menu item hack :-)
//
// You can change menu items' color and position for selected and unselected
// items separately in the following two functions:
//
// draw_menu_item_selected()
// draw_menu_item_unselected()
//
// Be careful what you write in these functions as they get called every
// frame for every menu item! For positioning the menu, update both
// functions with the same calculations, using the X/Y variables.
//
// Default values of the variables in V12 OSDSYS:
// X = 430 (this is the center of the menu)