xhci.c

Chapter 5 "Construction case with USB host system that handles USB controller SL811" sample progra

/*******************************************************************************

	USB OHCI/UHCI 儕僜乕僗僠僃僢僋僾儘僌儔儉

*******************************************************************************/

#include <stdio.h>
#include <string.h>
#include "PCIFUNC.H"
#include "MEMFUNC.H"


/* 儕僜乕僗昞帵(UHCI) */
void UHCI_print(int Bus, int Dev, int Func, int Index)
{
	unsigned int i,l;
	printf("UHCI Device Number:%d Bus:%d Device:%d Function:%d\n",Index,Bus,Dev,Func);
	l=_pciConfigReadWord(pciBusDevFunc(Bus,Dev,Func),0x20) & 0xFFFC;	/* I/O嬻娫 */
	i=_pciConfigReadByte(pciBusDevFunc(Bus,Dev,Func),0x3c);
	printf(" I/O address:%04Xh   IRQ:%Xh\n",l,i);
}

/* 儕僜乕僗昞帵(OHCI) */
void OHCI_print(int Bus, int Dev, int Func, int Index)
{
	unsigned int i;
	unsigned long l;
	printf("OHCI Device Number:%d Bus:%d Device:%d Function:%d\n",Index,Bus,Dev,Func);
	l=_pciConfigReadLong(pciBusDevFunc(Bus,Dev,Func),0x10) & 0xFFFFFFF0;	/* 儊儌儕嬻娫 */
	i=_pciConfigReadByte(pciBusDevFunc(Bus,Dev,Func),0x3c);
	printf(" Memory address:%08lXh   IRQ:%Xh\n",l,i);
}

/* 儊僀儞儖乕僠儞 */
int main(void)
{
	int i,Bus,Dev,Func;
	long l;

	printf("UHCI/OHCI Device search program\n");

	/* PCI僶僗娐嫬妋擣 */
	i=_pciConfigVersion();
	l=_pciSigPCI();
	if ( ((i & 0xff00)!=0) || (l != 0x20494350) ) {
		printf("PCI BIOS error\n");
		return -1;
	}
	i=_pciBusVersion();
	if (i < 0x200) {
		printf("PCI BIOS error\n");
		return -2;
	}

	/* UHCI僨僶僀僗専嶕 */
	printf("\nUHCI device search ... Class ID 0x0C / SubClass 0x03 / ProgramI/F 0x00\n");
	i=0;
	for(;;){
		l=_pciFindPciClass(0x0c,0x03,0,i);		/* UHCI僨僶僀僗専嶕 */
		if ((l & 0xFFFF)!= 0) break;			/* 僨僶僀僗偑尒偮偐傜側偄 */
		Bus=pciGetBus(l >> 16);
		Dev=pciGetDev(l >> 16);
		Func=pciGetFunc(l >> 16);
		UHCI_print(Bus,Dev,Func,i);		/* 儕僜乕僗昞帵 */
		i++;
	}
	if (i==0) printf(" Device not found!\n");

	printf("\nOHCI device search ... Class ID 0x0C / SubClass 0x03 / ProgramI/F 0x10\n");
	i=0;
	for(;;){
		l=_pciFindPciClass(0x0c,0x03,0x10,i);	/* OHCI僨僶僀僗専嶕 */
		if ((l & 0xFFFF)!= 0) break;			/* 僨僶僀僗偑尒偮偐傜側偄 */
		Bus=pciGetBus(l >> 16);
		Dev=pciGetDev(l >> 16);
		Func=pciGetFunc(l >> 16);
		OHCI_print(Bus,Dev,Func,i);		/* 儕僜乕僗昞帵 */
		i++;
	}
	if (i==0) printf(" Device not found!\n");

}