Files
Zorro-LAN-IDE/Driver/Init/InitLAN.c
T

254 lines
6.4 KiB
C

#include "InitLAN.h"
unsigned long hex2int(char *a)
{
int i,len=0;
unsigned long val = 0;
while(a[len])
len++;
for(i=0;i<len;i++)
if(a[i] <= 57)
val += (a[i]-48)*(1<<(4*(len-1-i)));
else
val += (a[i]-55)*(1<<(4*(len-1-i)));
return val;
}
BYTE delayCIA(){ //one CIA acces: 1.4 micro sec
return (CIA_TST);
}
WORD delayShort(){
return (CHP_TST);
}
int TestMemory(APTR *BaseAddress){
int i;
WORD w=0;
WORD wTestWriteData, wTestReadData;
// Generate and write pattern
for(w = 0; w < ENC100_RAM_SIZE; w += sizeof(wTestWriteData))
{
wTestWriteData = w;
WRITEREG(BaseAddress, w, w);
}
// Read back and verify random pattern
i=0;
for(w = 0; w < ENC100_RAM_SIZE; w += sizeof(wTestWriteData))
{
wTestWriteData = w;
wTestReadData = READREG(BaseAddress,w);
// See if the data matches. If your application gets stuck here,
// it means you have a hardware failure. Check all of your PSP
// address and data lines.
if(wTestWriteData != wTestReadData){
printf("Error checking memory at adress x%lx! Expected x%x - got x%x\n",((volatile BYTE *)BaseAddress+w),wTestWriteData,wTestReadData);
++i;
}
}
return i;
}
int SetClock(APTR *BaseAddress,int Clock){
WORD s=0,c=0;
switch(Clock){
case 0:
//disable clock
c=(ECON2_COCON3|ECON2_COCON2|ECON2_COCON1|ECON2_COCON0);
s=0;
break;
case 3:
//3.125Mhz
c=(ECON2_COCON1|ECON2_COCON0);
s=(ECON2_COCON3|ECON2_COCON2);
break;
case 4:
//4Mhz
c=(ECON2_COCON2);
s=(ECON2_COCON3|ECON2_COCON1|ECON2_COCON0);
break;
case 5:
//5Mhz
c=(ECON2_COCON2|ECON2_COCON0);
s=(ECON2_COCON3|ECON2_COCON1);
break;
case 6:
//6.25Mhz
c=(ECON2_COCON2|ECON2_COCON1);
s=(ECON2_COCON3|ECON2_COCON0);
break;
case 8:
//8.333Mhz
c=(ECON2_COCON3);
s=(ECON2_COCON2|ECON2_COCON1|ECON2_COCON0);
break;
case 10:
//10Mhz
c=(ECON2_COCON3|ECON2_COCON0);
s=(ECON2_COCON2|ECON2_COCON1);
break;
case 12:
//12.5Mhz
c=(ECON2_COCON3|ECON2_COCON1);
s=(ECON2_COCON2|ECON2_COCON0);
break;
case 16:
//16.667Mhz
c=(ECON2_COCON3|ECON2_COCON1|ECON2_COCON0);
s=(ECON2_COCON2);
break;
case 20:
//20Mhz
c=(ECON2_COCON3|ECON2_COCON2);
s=(ECON2_COCON1|ECON2_COCON0);
break;
case 25:
//25Mhz
c=(ECON2_COCON3|ECON2_COCON2|ECON2_COCON0);
s=(ECON2_COCON1);
break;
case 33:
//33.333Mhz
c=(ECON2_COCON3|ECON2_COCON2|ECON2_COCON1);
s=(ECON2_COCON0);
break;
default:
//disable clock
c=(ECON2_COCON3|ECON2_COCON2|ECON2_COCON1|ECON2_COCON0);
s=0;
break;
}
CLRREG(BaseAddress,ECON2, c);
SETREG(BaseAddress,ECON2, s);
return 0;
}
int SoftReset(APTR *BaseAddress){
int i;
WORD w,v=0;
// Perform a reset via the PSP interface
do
{
// Set and clear a few bits that clears themselves upon reset.
// If EUDAST cannot be written to and your code gets stuck in this
// loop, you have a hardware problem of some sort (SPI or PMP not
// initialized correctly, I/O pins aren't connected or are
// shorted to something, power isn't available, etc.)
w= 0x1234;
do
{
WRITEREG(BaseAddress,EUDAST, w);
v=READREG(BaseAddress, EUDAST);
printf("Read 0x%x at register 0x%lx (should be 0x%x)\n",v,(volatile BYTE *)(BaseAddress)+(EUDAST),w);
} while(v != w);
// Issue a reset and wait for it to complete
SETREG(BaseAddress,ECON2, ECON2_ETHRST);
w = (WORD)(ESTAT_CLKRDY | ESTAT_RSTDONE | ESTAT_PHYRDY);
do{
delayCIA();
v = (WORD) READREG(BaseAddress,ESTAT);
v &= (WORD) w;
printf("Read 0x%x at register 0x%x (should be 0x%x)\n",v,ESTAT,w);
}while(v != w);
/*
In software, wait at least 25 µs for the Reset to
take place and the SPI/PSP interface to begin
operating again.
*/
for(i=0; i<25; ++i){
delayCIA();
}
// Check to see if the reset operation was successful by
// checking if EUDAST went back to its reset default. This test
// should always pass, but certain special conditions might make
// this test fail, such as a PSP pin shorted to logic high.
w=READREG(BaseAddress,EUDAST);
printf("Read 0x%x at register 0x%x\n",w,EUDAST);
} while(w != 0);
/*
Wait at least 256 µs for the PHY registers and PHY status bits to become available.
*/
for(i=0; i<256; ++i){
delayCIA();
}
return v;
}
/*
** **********************************************
** LocateBoard()
** **********************************************
**
** Locates Host Controller hardware
**
*/
APTR LocateBoard(int manufactor, int product)
{
APTR board;
board = NULL; // Board not found (yet)
if ( ExpansionBase = OpenLibrary( "expansion.library", 36 ) ) {
struct ConfigDev *cfg;
// *** Find board
if (cfg = FindConfigDev( NULL, manufactor, product ))
{
board = cfg->cd_BoardAddr; // Get board base adr.
}
CloseLibrary( ExpansionBase );
}
return( board ); // Return board ptr (or NULL)
}
main(int argc, char *argv[])
{
int manufactor = 2588;
int product = 123;
int v =0;
if(argc==2){
product =atoi(argv[1]);
}
if(argc==3){
manufactor =atoi(argv[1]);
product =atoi(argv[2]);
}
APTR board = LocateBoard(manufactor,product);
if(board){
printf("Found board for manufactor/product %d/%d at address 0x%lx.\n",manufactor,product, board);
SetClock(board,33);
v=SoftReset(board);
printf("SoftReset returned %X\n",v);
v=TestMemory(board);
printf("Memory passed with %d errors\n",v);
}else{
printf("No board found for manufactor/product %d/%d.\n",manufactor,product);
}
}