void SendFile(RAFile *file)
{
DEBUG_FUNC_IN(DEBUG_F_FPGA | DEBUG_L0);
unsigned char c1, c2;
unsigned long j;
unsigned long n;
unsigned char *p;
printf("[");
n = (file->file.size + 511) >> 9; // sector count (rounded up)
while (n--)
{
// read data sector from memory card
RARead(file,sector_buffer,512);
do
{
// read FPGA status
EnableFpga();
c1 = SPI(0);
c2 = SPI(0);
SPI(0);
SPI(0);
SPI(0);
SPI(0);
DisableFpga();
}
while (!(c1 & CMD_RDTRK));
if ((n & 15) == 0)
printf("*");
// send data sector to FPGA
EnableFpga();
c1 = SPI(0);
c2 = SPI(0);
SPI(0);
SPI(0);
SPI(0);
SPI(0);
p = sector_buffer;
for (j = 0; j < 512; j++)
SPI(*p++);
DisableFpga();
}
printf("]\r");
DEBUG_FUNC_OUT(DEBUG_F_FPGA | DEBUG_L0);
}
int RARead(RAFile *file,unsigned char *pBuffer, unsigned long bytes)
{
DEBUG_FUNC_IN(DEBUG_F_RAFILE | DEBUG_L2);
int result=1;
// Since we can only read from the SD card on 512-byte aligned boundaries,
// we need to copy in multiple pieces.
unsigned long blockoffset=file->ptr&511; // Offset within the current 512 block at which the previous read finished
// Bytes blockoffset to 512 will be drained first, before reading new data.
if(blockoffset) // If blockoffset is zero we'll just use aligned reads and don't need to drain the buffer.
{
int i;
int l=bytes;
if(l>512)
l=512;
for(i=blockoffset;i<l;++i)
{
*pBuffer++=file->buffer[i];
}
file->ptr+=l-blockoffset;
bytes-=l-blockoffset;
}
// We've now read any bytes left over from a previous read. If any data remains to be read we can read it
// in 512-byte aligned chunks, until the last block.
while(bytes>511)
{
result&=FileRead(&file->file,pBuffer); // Read direct to pBuffer
FileNextSector(&file->file);
bytes-=512;
file->ptr+=512;
pBuffer+=512;
}
if(bytes) // Do we have any bytes left to read?
{
unsigned int i;
result&=FileRead(&file->file,file->buffer); // Read to temporary buffer, allowing us to preserve any leftover for the next read.
FileNextSector(&file->file);
for(i=0;i<bytes;++i)
{
*pBuffer++=file->buffer[i];
}
file->ptr+=bytes;
}
return(result);
DEBUG_FUNC_OUT(DEBUG_F_RAFILE | DEBUG_L2);
}
int RAOpen(RAFile *file,const char *filename)
{
DEBUG_FUNC_IN(DEBUG_F_RAFILE | DEBUG_L1);
int result=1;
if(!file)
return(0);
result=FileOpen(&file->file,filename);
file->size=file->file.size;
file->ptr=0;
return(result);
DEBUG_FUNC_OUT(DEBUG_F_RAFILE | DEBUG_L1);
}
// fatal error
void FatalError(void)
{
DEBUG_FUNC_IN();
DisableCard();
// loop forever
while(1) {
TIMER_wait(200);
LEDS(0x0);
TIMER_wait(200);
LEDS(led);
}
DEBUG_FUNC_OUT();
}
//// FatalError() ////
void FatalError(unsigned long error)
{
DEBUG_FUNC_IN();
sprintf(s,"Fatal error: %lu", error);
BootPrintEx(s);
printf(s);
// loop forever
while(1) {
TIMER_wait(200);
LEDS(0x0);
TIMER_wait(200);
LEDS(error);
}
DEBUG_FUNC_OUT();
}
void main(void)
{
DEBUG_FUNC_IN();
fileTYPE ft;
int i;
// !!! a pointer to start of RAM
unsigned char * ram = ((unsigned char *)0x400000);
// initialize SD card
LEDS(led=0xf);
if (!MMC_Init()) FatalError();
// find drive
LEDS(led=0x8);
if (!FindDrive()) FatalError();
// open file
LEDS(led=0x3);
LoadFile(firmware,ram);
#if 0
if (!FileOpen(&ft, firmware)) FatalError();
// load firmware to RAM
LEDS(led=0x1);
for(i=0; i<((ft.size>>9)+1); i++) {
FileRead(&ft, ram+(i*512));
FileNextSector(&ft);
}
#endif
// jump to RAM firmware
LEDS(led=0x0);
DisableCard();
sys_jump(0x400004);
// loop forever
while(1);
DEBUG_FUNC_OUT();
}
int RASeek(RAFile *file,unsigned long offset,unsigned long origin)
{
DEBUG_FUNC_IN(DEBUG_F_RAFILE | DEBUG_L1);
int result=1;
unsigned long blockoffset;
unsigned long blockaddress;
if(origin==SEEK_CUR)
offset+=file->ptr;
blockoffset=offset&511;
blockaddress=offset-blockoffset; // 512-byte-aligned...
result&=FileSeek(&file->file,blockaddress,SEEK_SET);
if(result && blockoffset) // If we're seeking into the middle of a block, we need to buffer it...
{
result&=FileRead(&file->file,file->buffer);
FileNextSector(&file->file);
}
file->ptr=offset;
return(result);
DEBUG_FUNC_OUT(DEBUG_F_RAFILE | DEBUG_L1);
}
void SendFileEncrypted(RAFile *file,unsigned char *key,int keysize)
{
DEBUG_FUNC_IN(DEBUG_F_FPGA | DEBUG_L0);
unsigned char c1, c2;
unsigned char headersize;
unsigned int keyidx=0;
unsigned long j;
unsigned long n;
unsigned char *p;
int badbyte=0;
printf("[");
headersize=file->size&255; // ROM should be a round number of kilobytes; overspill will likely be the Amiga Forever header.
RARead(file,sector_buffer,headersize); // Read extra bytes
n = (file->size + (511-headersize)) >> 9; // sector count (rounded up)
while (n--)
{
RARead(file,sector_buffer,512);
for (j = 0; j < 512; j++)
{
sector_buffer[j]^=key[keyidx++];
if(keyidx>=(unsigned)keysize)
keyidx-=keysize;
}
do
{
// read FPGA status
EnableFpga();
c1 = SPI(0);
c2 = SPI(0);
SPI(0);
SPI(0);
SPI(0);
SPI(0);
DisableFpga();
}
while (!(c1 & CMD_RDTRK));
if ((n & 15) == 0)
printf("*");
// send data sector to FPGA
EnableFpga();
c1 = SPI(0);
c2 = SPI(0);
SPI(0);
SPI(0);
SPI(0);
SPI(0);
p = sector_buffer;
for (j = 0; j < 512; j++)
SPI(*p++);
DisableFpga();
}
printf("]\r");
DEBUG_FUNC_OUT(DEBUG_F_FPGA | DEBUG_L0);
}
__geta4 void main(void)
#endif
{
DEBUG_FUNC_IN();
uint32_t spiclk;
fileTYPE sd_boot_file;
HideSplash();
SPI_fast();
// boot message
draw_boot_logo();
BootPrintEx("**** MINIMIG-DE1 ****");
BootPrintEx("Minimig by Dennis van Weeren");
BootPrintEx("Updates by Jakub Bednarski, Tobias Gubener, Sascha Boing, A.M. Robinson & others");
BootPrintEx("DE1 port by Rok Krajnc ([email protected])");
BootPrintEx(" ");
sprintf(s, "Build git commit: %s", __BUILD_REV);
BootPrintEx(s);
sprintf(s, "Build git tag: %s", __BUILD_TAG);
BootPrintEx(s);
BootPrintEx(" ");
BootPrintEx("For updates & code see https://github.com/rkrajnc/minimig-de1");
BootPrintEx("For support, see http://www.minimig.net");
BootPrintEx(" ");
printf("\r\r**** MINIMIG-DE1 ****\r\r");
printf("Minimig by Dennis van Weeren\r");
printf("Updates by Jakub Bednarski, Tobias Gubener, Sascha Boing, A.M. Robinson & others\r");
printf("DE1 port by Rok Krajnc ([email protected])\r\r");
printf("Build no. ");
printf(__BUILD_NUM);
//printf(" by ");
//printf(__BUILD_USER);
printf("\rgit commit ");
printf(__BUILD_REV);
printf("\rgit tag");
printf(__BUILD_TAG);
printf("\r\r");
printf("For updates & code see https://github.com/rkrajnc/minimig-de1\r");
printf("For support, see http://www.minimig.net/\r\r");
spiclk = 100000 / (20*(read32(REG_SPI_DIV_ADR) + 2));
printf("SPI divider: %u\r", read32(REG_SPI_DIV_ADR));
sprintf(s, "SPI clock: %u.%uMHz", spiclk/100, spiclk%100);
BootPrintEx(s);
printf("%s\r", s);
if (!MMC_Init()) FatalError(1);
BootPrintEx("SD card found ...");
printf("SD card found ...\r");
if (!FindDrive()) FatalError(2);
BootPrintEx("Drive found ...");
printf("Drive found ...\r");
ChangeDirectory(DIRECTORY_ROOT);
//eject all disk
df[0].status = 0;
df[1].status = 0;
df[2].status = 0;
df[3].status = 0;
BootPrintEx("Booting ...");
printf("Booting ...\r");
TIMER_wait(8000);
config.kickstart.name[0]=0;
SetConfigurationFilename(0); // Use default config
LoadConfiguration(0); // Use slot-based config filename
// main loop
while (1) {
HandleFpga();
HandleUI();
}
DEBUG_FUNC_OUT();
}