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cdvdman.c
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cdvdman.c
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/*
Copyright 2009-2010, jimmikaelkael
Licenced under Academic Free License version 3.0
Review Open PS2 Loader README & LICENSE files for further details.
*/
#include "smsutils.h"
#include "mass_common.h"
#include "mass_stor.h"
#include "dev9.h"
#include "oplsmb.h"
#include "smb.h"
#include "atad.h"
#include "ioplib_util.h"
#include "cdvdman.h"
#include "internal.h"
#include "cdvd_config.h"
#include "device.h"
#include <loadcore.h>
#include <stdio.h>
#include <sysclib.h>
#include <sysmem.h>
#include <thbase.h>
#include <thevent.h>
#include <intrman.h>
#include <ioman.h>
#include <thsemap.h>
#include <errno.h>
#include <io_common.h>
#include <usbd.h>
#include "ioman_add.h"
#define MODNAME "cdvd_driver"
IRX_ID(MODNAME, 1, 1);
//------------------ Patch Zone ----------------------
#ifdef HDD_DRIVER
struct cdvdman_settings_hdd cdvdman_settings = {
{0x69, 0x69,
0x1234,
0x39393939,
"B00BS"},
0x12345678};
#elif SMB_DRIVER
struct cdvdman_settings_smb cdvdman_settings = {
{0x69, 0x69,
0x1234,
0x39393939,
"B00BS"},
"###### FILENAME ######",
{{"192.168.0.10",
0x8510,
"PS2SMB",
"",
"GUEST",
""}}};
#elif USB_DRIVER
struct cdvdman_settings_usb cdvdman_settings = {
{0x69, 0x69,
0x1234,
0x39393939,
"B00BS"},
};
#else
#error Unknown driver type. Please check the Makefile.
#endif
//----------------------------------------------------
extern struct irx_export_table _exp_cdvdman;
extern struct irx_export_table _exp_cdvdstm;
extern struct irx_export_table _exp_smsutils;
extern struct irx_export_table _exp_oplutils;
#ifdef __USE_DEV9
extern struct irx_export_table _exp_dev9;
#endif
struct dirTocEntry
{
short length;
u32 fileLBA; // 2
u32 fileLBA_bigend; // 6
u32 fileSize; // 10
u32 fileSize_bigend; // 14
u8 dateStamp[6]; // 18
u8 reserved1; // 24
u8 fileProperties; // 25
u8 reserved2[6]; // 26
u8 filenameLength; // 32
char filename[128]; // 33
} __attribute__((packed));
typedef struct
{
iop_file_t *f;
u32 lsn;
unsigned int filesize;
unsigned int position;
} FHANDLE;
// internal functions prototypes
static void oplShutdown(int poff);
static void fs_init(void);
static void cdvdman_init(void);
static int cdvdman_readMechaconVersion(char *mname, u32 *stat);
static int cdvdman_readID(int mode, u8 *buf);
static FHANDLE *cdvdman_getfilefreeslot(void);
static void cdvdman_trimspaces(char *str);
static struct dirTocEntry *cdvdman_locatefile(char *name, u32 tocLBA, int tocLength, int layer);
static int cdvdman_findfile(cd_file_t *pcd_file, const char *name, int layer);
static int cdvdman_writeSCmd(u8 cmd, void *in, u32 in_size, void *out, u32 out_size);
static int cdvdman_sendSCmd(u8 cmd, void *in, u32 in_size, void *out, u32 out_size);
static void cdvdman_cb_event(int reason);
static unsigned int event_alarm_cb(void *args);
static void cdvdman_signal_read_end(void);
static void cdvdman_signal_read_end_intr(void);
static void cdvdman_startThreads(void);
static void cdvdman_create_semaphores(void);
static void cdvdman_initdev(void);
static int cdvdman_read(u32 lsn, u32 sectors, void *buf);
// for "cdrom" ioctl2
#define CIOCSTREAMPAUSE 0x630D
#define CIOCSTREAMRESUME 0x630E
#define CIOCSTREAMSTAT 0x630F
// driver ops protypes
static int cdrom_dummy(void);
static s64 cdrom_dummy64(void);
static int cdrom_init(iop_device_t *dev);
static int cdrom_deinit(iop_device_t *dev);
static int cdrom_open(iop_file_t *f, const char *filename, int mode);
static int cdrom_close(iop_file_t *f);
static int cdrom_read(iop_file_t *f, void *buf, int size);
static int cdrom_lseek(iop_file_t *f, int offset, int where);
static int cdrom_getstat(iop_file_t *f, const char *filename, iox_stat_t *stat);
static int cdrom_dopen(iop_file_t *f, const char *dirname);
static int cdrom_dread(iop_file_t *f, iox_dirent_t *dirent);
static int cdrom_ioctl(iop_file_t *f, u32 cmd, void *args);
static int cdrom_devctl(iop_file_t *f, const char *name, int cmd, void *args, u32 arglen, void *buf, u32 buflen);
static int cdrom_ioctl2(iop_file_t *f, int cmd, void *args, unsigned int arglen, void *buf, unsigned int buflen);
// driver ops func tab
static struct _iop_ext_device_ops cdrom_ops = {
&cdrom_init,
&cdrom_deinit,
(void *)&cdrom_dummy,
&cdrom_open,
&cdrom_close,
&cdrom_read,
(void *)&cdrom_dummy,
&cdrom_lseek,
&cdrom_ioctl,
(void *)&cdrom_dummy,
(void *)&cdrom_dummy,
(void *)&cdrom_dummy,
&cdrom_dopen,
&cdrom_close, //dclose -> close
&cdrom_dread,
&cdrom_getstat,
(void *)&cdrom_dummy,
(void *)&cdrom_dummy,
(void *)&cdrom_dummy,
(void *)&cdrom_dummy,
(void *)&cdrom_dummy,
(void *)&cdrom_dummy,
(void *)&cdrom_dummy64,
(void *)&cdrom_devctl,
(void *)&cdrom_dummy,
(void *)&cdrom_dummy,
&cdrom_ioctl2};
// driver descriptor
static iop_ext_device_t cdrom_dev = {
"cdrom",
IOP_DT_FS | IOP_DT_FSEXT,
1,
"CD-ROM ",
&cdrom_ops};
#define MAX_FDHANDLES 64
FHANDLE cdvdman_fdhandles[MAX_FDHANDLES];
typedef struct
{
u32 rootDirtocLBA;
u32 rootDirtocLength;
} layer_info_t;
static layer_info_t layer_info[2];
struct cdvdman_cb_data
{
void (*user_cb)(int reason);
int reason;
};
cdvdman_status_t cdvdman_stat;
static struct cdvdman_cb_data cb_data;
static int cdrom_io_sema;
static int cdrom_rthread_sema;
static int cdvdman_scmdsema;
static int cdvdman_searchfilesema;
static int cdvdman_ReadingThreadID;
static StmCallback_t Stm0Callback = NULL;
static iop_sys_clock_t gCallbackSysClock;
// buffers
#define CDVDMAN_BUF_SECTORS 2
static u8 cdvdman_buf[CDVDMAN_BUF_SECTORS * 2048];
#define CDVDMAN_FS_BUFSIZE CDVDMAN_FS_SECTORS * 2048
static u8 cdvdman_fs_buf[CDVDMAN_FS_BUFSIZE];
#define CDVDMAN_MODULE_VERSION 0x225
static int cdvdman_debug_print_flag = 0;
static unsigned char fs_inited = 0;
static unsigned char cdvdman_media_changed = 1;
static unsigned char sync_flag;
static unsigned char cdvdman_cdinited = 0;
static unsigned int ReadPos = 0; /* Current buffer offset in 2048-byte sectors. */
#ifdef __USE_DEV9
static int POFFThreadID;
#endif
typedef void (*oplShutdownCb_t)(void);
static oplShutdownCb_t vmcShutdownCb = NULL;
void oplRegisterShutdownCallback(oplShutdownCb_t cb)
{
vmcShutdownCb = cb;
}
static void oplShutdown(int poff)
{
int stat;
DeviceLock();
if(vmcShutdownCb != NULL)
vmcShutdownCb();
DeviceUnmount();
if (poff)
{
DeviceStop();
#ifdef __USE_DEV9
dev9Shutdown();
#endif
sceCdPowerOff(&stat);
}
}
//--------------------------------------------------------------
static void fs_init(void)
{
if (fs_inited)
return;
DPRINTF("fs_init\n");
DeviceFSInit();
mips_memset(&cdvdman_fdhandles[0], 0, MAX_FDHANDLES * sizeof(FHANDLE));
// Read the volume descriptor
sceCdRead(16, 1, cdvdman_buf, NULL);
sceCdSync(0);
struct dirTocEntry *tocEntryPointer = (struct dirTocEntry *)&cdvdman_buf[0x9c];
layer_info[0].rootDirtocLBA = tocEntryPointer->fileLBA;
layer_info[0].rootDirtocLength = tocEntryPointer->length;
// DVD DL support
if (!(cdvdman_settings.common.flags & IOPCORE_COMPAT_EMU_DVDDL)) {
int on_dual;
u32 layer1_start;
sceCdReadDvdDualInfo(&on_dual, &layer1_start);
if (on_dual) {
sceCdRead(layer1_start + 16, 1, cdvdman_buf, NULL);
sceCdSync(0);
tocEntryPointer = (struct dirTocEntry *)&cdvdman_buf[0x9c];
layer_info[1].rootDirtocLBA = layer1_start + tocEntryPointer->fileLBA;
layer_info[1].rootDirtocLength = tocEntryPointer->length;
}
}
fs_inited = 1;
}
//-------------------------------------------------------------------------
#ifdef __USE_DEV9
static void cdvdman_poff_thread(void *arg)
{
SleepThread();
oplShutdown(1);
}
#endif
static void cdvdman_init(void)
{
#ifdef __USE_DEV9
iop_thread_t ThreadData;
#endif
if (!cdvdman_cdinited) {
cdvdman_stat.err = CDVD_ERR_NO;
fs_init();
#ifdef __USE_DEV9
if (cdvdman_settings.common.flags & IOPCORE_ENABLE_POFF) {
ThreadData.attr = TH_C;
ThreadData.option = 0xABCD0001;
ThreadData.priority = 1;
ThreadData.stacksize = 0x400;
ThreadData.thread = &cdvdman_poff_thread;
StartThread(POFFThreadID = CreateThread(&ThreadData), NULL);
}
#endif
cdvdman_cdinited = 1;
}
}
int sceCdInit(int init_mode)
{
cdvdman_init();
return 1;
}
//-------------------------------------------------------------------------
int sceCdStandby(void)
{
cdvdman_stat.err = CDVD_ERR_NO;
cdvdman_stat.status = CDVD_STAT_PAUSE;
cdvdman_cb_event(SCECdFuncStandby);
return 1;
}
//-------------------------------------------------------------------------
static unsigned int cdvdemu_read_end_cb(void *arg)
{
iSetEventFlag(cdvdman_stat.intr_ef, 0x1000);
return 0;
}
static int cdvdman_read_sectors(u32 lsn, unsigned int sectors, void *buf)
{
unsigned int SectorsToRead, remaining;
void *ptr;
DPRINTF("cdvdman_read lsn=%lu sectors=%u buf=%p\n", lsn, sectors, buf);
cdvdman_stat.err = CDVD_ERR_NO;
for (ptr = buf, remaining = sectors; remaining > 0;) {
if (cdvdman_stat.err != CDVD_ERR_NO)
break;
SectorsToRead = remaining;
if (cdvdman_settings.common.flags & IOPCORE_COMPAT_ACCU_READS) {
//Limit transfers to a maximum length of 8, with a restricted transfer rate.
iop_sys_clock_t TargetTime;
if (SectorsToRead > 8)
SectorsToRead = 8;
TargetTime.hi = 0;
TargetTime.lo = 20460 * SectorsToRead; // approximately 2KB/3600KB/s = 555us required per 2048-byte data sector at 3600KB/s, so 555 * 36.864 = 20460 ticks per sector with a 36.864MHz clock.
ClearEventFlag(cdvdman_stat.intr_ef, ~0x1000);
SetAlarm(&TargetTime, &cdvdemu_read_end_cb, NULL);
}
if (DeviceReadSectors(lsn, ptr, SectorsToRead) != 0) {
cdvdman_stat.err = CDVD_ERR_READ;
if (cdvdman_settings.common.flags & IOPCORE_COMPAT_ACCU_READS)
CancelAlarm(&cdvdemu_read_end_cb, NULL);
break;
}
/* PS2LOGO Decryptor algorithm; based on misfire's code (https://github.com/mlafeldt/ps2logo)
The PS2 logo is stored within the first 12 sectors, scrambled.
This algorithm exploits the characteristic that the value used for scrambling will be recorded,
when it is XOR'ed against a black pixel. The first pixel is black, hence the value of the first byte
was the value used for scrambling. */
if (lsn < 13) {
u32 j;
u8 *logo = (u8 *)ptr;
static u8 key = 0;
if (lsn == 0) //First sector? Copy the first byte as the value for unscrambling the logo.
key = logo[0];
if (key != 0) {
for (j = 0; j < (SectorsToRead * 2048); j++) {
logo[j] ^= key;
logo[j] = (logo[j] << 3) | (logo[j] >> 5);
}
}
}
ptr += SectorsToRead << 11;
remaining -= SectorsToRead;
lsn += SectorsToRead;
ReadPos += SectorsToRead << 11;
if (cdvdman_settings.common.flags & IOPCORE_COMPAT_ACCU_READS) {
//Sleep until the required amount of time has been spent.
WaitEventFlag(cdvdman_stat.intr_ef, 0x1000, WEF_AND, NULL);
}
}
return (cdvdman_stat.err == CDVD_ERR_NO ? 0 : 1);
}
static int cdvdman_read(u32 lsn, u32 sectors, void *buf)
{
cdvdman_stat.status = CDVD_STAT_READ;
#ifdef HDD_DRIVER //As of now, only the ATA interface requires this. We do this here to share cdvdman_buf.
if ((u32)(buf)&3) {
//For transfers to unaligned buffers, a double-copy is required to avoid stalling the device's DMA channel.
WaitSema(cdvdman_searchfilesema);
u32 nsectors, nbytes;
u32 rpos = lsn;
while (sectors > 0) {
nsectors = sectors;
if (nsectors > CDVDMAN_BUF_SECTORS)
nsectors = CDVDMAN_BUF_SECTORS;
cdvdman_read_sectors(rpos, nsectors, cdvdman_buf);
rpos += nsectors;
sectors -= nsectors;
nbytes = nsectors << 11;
mips_memcpy(buf, cdvdman_buf, nbytes);
buf = (void *)(buf + nbytes);
}
SignalSema(cdvdman_searchfilesema);
} else {
#endif
cdvdman_read_sectors(lsn, sectors, buf);
#ifdef HDD_DRIVER
}
#endif
ReadPos = 0; /* Reset the buffer offset indicator. */
cdvdman_stat.status = CDVD_STAT_PAUSE;
return 1;
}
//Must be called from a thread context, with interrupts disabled.
static int cdvdman_common_lock(int IntrContext)
{
if (sync_flag)
return 0;
if (IntrContext)
iClearEventFlag(cdvdman_stat.intr_ef, ~1);
else
ClearEventFlag(cdvdman_stat.intr_ef, ~1);
sync_flag = 1;
return 1;
}
int cdvdman_AsyncRead(u32 lsn, u32 sectors, void *buf)
{
int IsIntrContext, OldState;
IsIntrContext = QueryIntrContext();
CpuSuspendIntr(&OldState);
if (!cdvdman_common_lock(IsIntrContext)) {
CpuResumeIntr(OldState);
DPRINTF("cdvdman_AsyncRead: exiting (sync_flag)...\n");
return 0;
}
cdvdman_stat.cdread_lba = lsn;
cdvdman_stat.cdread_sectors = sectors;
cdvdman_stat.cdread_buf = buf;
CpuResumeIntr(OldState);
if (IsIntrContext)
iSignalSema(cdrom_rthread_sema);
else
SignalSema(cdrom_rthread_sema);
return 1;
}
static int cdvdman_SyncRead(u32 lsn, u32 sectors, void *buf)
{
int IsIntrContext, OldState;
IsIntrContext = QueryIntrContext();
CpuSuspendIntr(&OldState);
if (!cdvdman_common_lock(IsIntrContext)) {
CpuResumeIntr(OldState);
DPRINTF("cdvdman_SyncRead: exiting (sync_flag)...\n");
return 0;
}
CpuResumeIntr(OldState);
cdvdman_read(lsn, sectors, buf);
cdvdman_cb_event(SCECdFuncRead);
sync_flag = 0;
SetEventFlag(cdvdman_stat.intr_ef, 9);
return 1;
}
//-------------------------------------------------------------------------
int sceCdRead(u32 lsn, u32 sectors, void *buf, cd_read_mode_t *mode)
{
int result;
DPRINTF("sceCdRead lsn=%d sectors=%d buf=%08x\n", (int)lsn, (int)sectors, (int)buf);
if ((!(cdvdman_settings.common.flags & IOPCORE_COMPAT_ALT_READ)) || QueryIntrContext()) {
result = cdvdman_AsyncRead(lsn, sectors, buf);
} else {
result = cdvdman_SyncRead(lsn, sectors, buf);
}
return result;
}
//-------------------------------------------------------------------------
int sceCdSeek(u32 lsn)
{
DPRINTF("sceCdSeek %d\n", (int)lsn);
if (sync_flag)
return 0;
cdvdman_stat.err = CDVD_ERR_NO;
cdvdman_stat.status = CDVD_STAT_PAUSE;
cdvdman_cb_event(SCECdFuncSeek);
return 1;
}
//-------------------------------------------------------------------------
int sceCdGetError(void)
{
DPRINTF("sceCdGetError %d\n", cdvdman_stat.err);
return cdvdman_stat.err;
}
//-------------------------------------------------------------------------
int sceCdGetToc(void *toc)
{
if (sync_flag)
return 0;
cdvdman_stat.err = CDVD_ERR_READ;
return 0; //Not supported
}
//-------------------------------------------------------------------------
int sceCdSearchFile(cd_file_t *pcd_file, const char *name)
{
DPRINTF("sceCdSearchFile %s\n", name);
return cdvdman_findfile(pcd_file, name, 0);
}
//-------------------------------------------------------------------------
int sceCdSync(int mode)
{
DPRINTF("sceCdSync %d sync flag = %d\n", mode, sync_flag);
if (!sync_flag)
return 0;
if ((mode == 1) || (mode == 17))
return 1;
while (sync_flag)
WaitEventFlag(cdvdman_stat.intr_ef, 1, WEF_AND, NULL);
return 0;
}
//-------------------------------------------------------------------------
static void cdvdman_initDiskType(void)
{
cdvdman_stat.err = CDVD_ERR_NO;
cdvdman_stat.disc_type_reg = (int)cdvdman_settings.common.media;
DPRINTF("DiskType=0x%x\n", cdvdman_settings.common.media);
}
//-------------------------------------------------------------------------
int sceCdGetDiskType(void)
{
return cdvdman_stat.disc_type_reg;
}
//-------------------------------------------------------------------------
int sceCdDiskReady(int mode)
{
DPRINTF("sceCdDiskReady %d\n", mode);
cdvdman_stat.err = CDVD_ERR_NO;
if (cdvdman_cdinited) {
if (mode == 0) {
while (sync_flag)
WaitEventFlag(cdvdman_stat.intr_ef, 1, WEF_AND, NULL);
}
if (!sync_flag)
return CDVD_READY_READY;
}
return CDVD_READY_NOTREADY;
}
//-------------------------------------------------------------------------
int sceCdTrayReq(int mode, u32 *traycnt)
{
DPRINTF("sceCdTrayReq(%d, 0x%lX)\n", mode, *traycnt);
if (mode == CDVD_TRAY_CHECK) {
if (traycnt)
*traycnt = cdvdman_media_changed;
cdvdman_media_changed = 0;
return 1;
}
if (mode == CDVD_TRAY_OPEN) {
cdvdman_stat.status = CDVD_STAT_OPEN;
cdvdman_stat.disc_type_reg = 0;
DelayThread(11000);
cdvdman_stat.err = CDVD_ERR_OPENS; /* not sure about this error code */
return 1;
} else if (mode == CDVD_TRAY_CLOSE) {
DelayThread(25000);
cdvdman_stat.status = CDVD_STAT_PAUSE; /* not sure if the status is right, may be - CDVD_STAT_SPIN */
cdvdman_stat.err = CDVD_ERR_NO; /* not sure if this error code is suitable here */
cdvdman_stat.disc_type_reg = (int)cdvdman_settings.common.media;
cdvdman_media_changed = 1;
return 1;
}
return 0;
}
//-------------------------------------------------------------------------
int sceCdStop(void)
{
if (sync_flag)
return 0;
cdvdman_stat.err = CDVD_ERR_NO;
cdvdman_stat.status = CDVD_STAT_STOP;
cdvdman_cb_event(SCECdFuncStop);
return 1;
}
//-------------------------------------------------------------------------
int sceCdPosToInt(cd_location_t *p)
{
register int result;
result = ((u32)p->minute >> 16) * 10 + ((u32)p->minute & 0xF);
result *= 60;
result += ((u32)p->second >> 16) * 10 + ((u32)p->second & 0xF);
result *= 75;
result += ((u32)p->sector >> 16) * 10 + ((u32)p->sector & 0xF);
result -= 150;
return result;
}
//-------------------------------------------------------------------------
cd_location_t *sceCdIntToPos(int i, cd_location_t *p)
{
register int sc, se, mi;
i += 150;
se = i / 75;
sc = i - se * 75;
mi = se / 60;
se = se - mi * 60;
p->sector = (sc - (sc / 10) * 10) + (sc / 10) * 16;
p->second = (se / 10) * 16 + se - (se / 10) * 10;
p->minute = (mi / 10) * 16 + mi - (mi / 10) * 10;
return p;
}
//-------------------------------------------------------------------------
int sceCdRI(char *buf, int *stat)
{
u8 rdbuf[16];
cdvdman_sendSCmd(0x12, NULL, 0, rdbuf, 9);
if (stat)
*stat = (int)rdbuf[0];
mips_memcpy((void *)buf, (void *)&rdbuf[1], 8);
return 1;
}
//-------------------------------------------------------------------------
int sceCdReadClock(cd_clock_t *rtc)
{
int rc;
cdvdman_stat.err = CDVD_ERR_NO;
rc = cdvdman_sendSCmd(0x08, NULL, 0, (void *)rtc, 8);
rtc->week = 0;
rtc->month &= 0x7f;
return rc;
}
//-------------------------------------------------------------------------
int sceCdStatus(void)
{
DPRINTF("sceCdStatus %d\n", cdvdman_stat.status);
return cdvdman_stat.status;
}
//-------------------------------------------------------------------------
int sceCdApplySCmd(int cmd, void *in, u32 in_size, void *out)
{
DPRINTF("sceCdApplySCmd\n");
return cdvdman_sendSCmd(cmd & 0xff, in, in_size, out, 16);
}
//-------------------------------------------------------------------------
int *sceCdCallback(void *func)
{
int oldstate;
void *old_cb;
DPRINTF("sceCdCallback %p\n", func);
if (sceCdSync(1))
return NULL;
CpuSuspendIntr(&oldstate);
old_cb = cb_data.user_cb;
cb_data.user_cb = func;
CpuResumeIntr(oldstate);
return (int *)old_cb;
}
//-------------------------------------------------------------------------
int sceCdPause(void)
{
DPRINTF("sceCdPause\n");
if (sync_flag)
return 0;
cdvdman_stat.err = CDVD_ERR_NO;
cdvdman_stat.status = CDVD_STAT_PAUSE;
cdvdman_cb_event(SCECdFuncPause);
return 1;
}
//-------------------------------------------------------------------------
int sceCdBreak(void)
{
DPRINTF("sceCdBreak\n");
if (sync_flag)
return 0;
cdvdman_stat.err = CDVD_ERR_NO;
cdvdman_stat.status = CDVD_STAT_PAUSE;
cdvdman_stat.err = CDVD_ERR_ABRT;
cdvdman_cb_event(SCECdFuncBreak);
return 1;
}
//-------------------------------------------------------------------------
int sceCdReadCdda(u32 lsn, u32 sectors, void *buf, cd_read_mode_t *mode)
{
return sceCdRead(lsn, sectors, buf, mode);
}
//-------------------------------------------------------------------------
int sceCdGetReadPos(void)
{
DPRINTF("sceCdGetReadPos\n");
return ReadPos;
}
//-------------------------------------------------------------------------
void *sceGetFsvRbuf(void)
{
return cdvdman_fs_buf;
}
//-------------------------------------------------------------------------
int sceCdSC(int code, int *param)
{
int result;
DPRINTF("sceCdSC(0x%X, 0x%X)\n", code, *param);
switch (code) {
case CDSC_GET_INTRFLAG:
result = cdvdman_stat.intr_ef;
break;
case CDSC_IO_SEMA:
if (*param) {
WaitSema(cdrom_io_sema);
} else
SignalSema(cdrom_io_sema);
result = *param; //EE N-command code.
break;
case CDSC_GET_VERSION:
result = CDVDMAN_MODULE_VERSION;
break;
case CDSC_GET_DEBUG_STATUS:
*param = (int)&cdvdman_debug_print_flag;
result = 0xFF;
break;
case CDSC_SET_ERROR:
result = cdvdman_stat.err = *param;
break;
case CDSC_OPL_SHUTDOWN:
oplShutdown(*param);
result = 1;
break;
default:
result = 1; // dummy result
}
return result;
}
//-------------------------------------------------------------------------
int sceCdRC(cd_clock_t *rtc)
{
cdvdman_stat.err = CDVD_ERR_NO;
return cdvdman_sendSCmd(0x08, NULL, 0, (void *)rtc, 8);
}
//-------------------------------------------------------------------------
static int cdvdman_readMechaconVersion(char *mname, u32 *stat)
{
u8 rdbuf[16];
u8 wrbuf[16];
wrbuf[0] = 0;
cdvdman_sendSCmd(0x03, wrbuf, 1, rdbuf, 4);
*stat = rdbuf[0] & 0x80;
rdbuf[0] &= 0x7f;
mips_memcpy(mname, &rdbuf[0], 4);
return 1;
}
//-------------------------------------------------------------------------
int sceCdRM(char *m, u32 *stat)
{
register int r;
u8 rdbuf[16];
u8 wrbuf[16];
*stat = 0;
r = cdvdman_readMechaconVersion(rdbuf, stat);
if ((r == 1) && (0x104FE < (rdbuf[3] | (rdbuf[2] << 8) | (rdbuf[1] << 16)))) {
mips_memcpy(&m[0], "M_NAME_UNKNOWN\0\0", 16);
*stat |= 0x40;
} else {
wrbuf[0] = 0;
cdvdman_sendSCmd(0x17, wrbuf, 1, rdbuf, 9);
*stat = rdbuf[0];
mips_memcpy(&m[0], &rdbuf[1], 8);
wrbuf[0] = 8;
cdvdman_sendSCmd(0x17, wrbuf, 1, rdbuf, 9);
*stat |= rdbuf[0];
mips_memcpy(&m[8], &rdbuf[1], 8);
}
return 1;
}
//-------------------------------------------------------------------------
int sceCdPowerOff(int *stat)
{
return cdvdman_sendSCmd(0x0F, NULL, 0, (unsigned char *)stat, 1);
}
//-------------------------------------------------------------------------
int sceCdReadDiskID(void *DiskID)
{
int i;
u8 *p = (u8 *)DiskID;
for (i = 0; i < 5; i++) {
if (p[i] != 0)
break;
}
if (i == 5)
*((u16 *)DiskID) = (u16)0xadde;
else
mips_memcpy(DiskID, cdvdman_settings.common.DiscID, 5);
return 1;
}
//-------------------------------------------------------------------------
int sceCdReadDvdDualInfo(int *on_dual, u32 *layer1_start)
{
if (cdvdman_settings.common.flags & IOPCORE_COMPAT_EMU_DVDDL) {
//Make layer 1 point to layer 0.
*layer1_start = 0;
*on_dual = 1;
} else {
*layer1_start = cdvdman_settings.common.layer1_start;
*on_dual = (cdvdman_settings.common.layer1_start > 0) ? 1 : 0;
}
return 1;
}
//-------------------------------------------------------------------------
int sceCdLayerSearchFile(cdl_file_t *fp, const char *name, int layer)
{
DPRINTF("sceCdLayerSearchFile %s\n", name);
return cdvdman_findfile((cd_file_t *)fp, name, layer);
}
//--------------------------------------------------------------
int cdvdman_readID(int mode, u8 *buf)
{
u8 lbuf[16];
int stat;
int r;
r = sceCdRI(lbuf, &stat);
if ((r == 0) || (stat))
return 0;