_X_EXPORT int
xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
int Len)
{
unsigned char *ptr;
int psize;
int mlen;
psize = xf86getpagesize();
Offset += Base & (psize - 1);
Base &= ~(psize - 1);
mlen = (Offset + Len + psize - 1) & ~(psize - 1);
ptr = (unsigned char *)mmap_device_memory((caddr_t)0, mlen, PROT_READ,
0, (off_t)Base);
if ((long)ptr == -1)
{
xf86Msg(X_WARNING,
"xf86ReadBIOS: %s mmap[s=%x,a=%lx,o=%lx] failed (%s)\n",
DEV_MEM, Len, Base, Offset, strerror(errno));
return(-1);
}
#ifdef DEBUG
ErrorF("xf86ReadBIOS: BIOS at 0x%08x has signature 0x%04x\n",
Base, ptr[0] | (ptr[1] << 8));
#endif
(void)memcpy(Buf, (void *)(ptr + Offset), Len);
(void)munmap_device_memory((caddr_t)ptr, mlen);
#ifdef DEBUG
xf86MsgVerb(X_INFO, 3, "xf86ReadBIOS(%x, %x, Buf, %x)"
"-> %02x %02x %02x %02x...\n",
Base, Offset, Len, Buf[0], Buf[1], Buf[2], Buf[3]);
#endif
return(Len);
}
int
xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
int Len)
{
unsigned char *ptr;
int psize;
int mlen;
checkDevMem(TRUE);
if (devMemFd == -1) {
return(-1);
}
psize = xf86getpagesize();
Offset += Base & (psize - 1);
Base &= ~(psize - 1);
mlen = (Offset + Len + psize - 1) & ~(psize - 1);
ptr = (unsigned char *)mmap((caddr_t)0, mlen, PROT_READ,
MAP_SHARED, devMemFd, (off_t)Base);
if ((long)ptr == -1)
{
xf86Msg(X_WARNING,
"xf86ReadBIOS: %s mmap[s=%x,a=%lx,o=%lx] failed (%s)\n",
DEV_MEM, Len, Base, Offset, strerror(errno));
#ifdef __OpenBSD__
if (Base < 0xa0000) {
xf86Msg(X_WARNING, SYSCTL_MSG2);
}
#endif
return(-1);
}
#ifdef DEBUG
ErrorF("xf86ReadBIOS: BIOS at 0x%08x has signature 0x%04x\n",
Base, ptr[0] | (ptr[1] << 8));
#endif
(void)memcpy(Buf, (void *)(ptr + Offset), Len);
(void)munmap((caddr_t)ptr, mlen);
#ifdef DEBUG
xf86MsgVerb(X_INFO, 3, "xf86ReadBIOS(%x, %x, Buf, %x)"
"-> %02x %02x %02x %02x...\n",
Base, Offset, Len, Buf[0], Buf[1], Buf[2], Buf[3]);
#endif
return(Len);
}
_X_EXPORT int
xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
int Len)
{
int fd;
unsigned char *ptr;
int psize;
int mlen;
if ((fd = open(DEV_MEM, O_RDONLY)) < 0)
{
xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to open %s (%s)\n",
DEV_MEM, strerror(errno));
return(-1);
}
psize = xf86getpagesize();
Offset += Base & (psize - 1);
Base &= ~(psize - 1);
mlen = (Offset + Len + psize - 1) & ~(psize - 1);
ptr = (unsigned char *)mmap((caddr_t)0, mlen, PROT_READ,
MAP_SHARED, fd, (off_t)Base);
if (ptr == MAP_FAILED)
{
xf86Msg(X_WARNING, "xf86ReadBIOS: %s mmap failed (%s)\n",
DEV_MEM, strerror(errno));
close(fd);
return(-1);
}
#ifdef DEBUG
ErrorF("xf86ReadBIOS: BIOS at 0x%08x has signature 0x%04x\n",
Base, ptr[0] | (ptr[1] << 8));
#endif
(void)memcpy(Buf, (void *)(ptr + Offset), Len);
(void)munmap((caddr_t)ptr, mlen);
(void)close(fd);
return(Len);
}
int
xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf,
int Len)
{
caddr_t base;
int fd;
int psize;
int mlen;
if ((fd = open(DEV_MEM, O_RDONLY)) < 0)
{
xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to open %s (%s)\n",
DEV_MEM, strerror(errno));
return(-1);
}
psize = xf86getpagesize();
Offset += Base & (psize - 1);
Base &= ~(psize - 1);
mlen = (Offset + Len + psize - 1) & ~(psize - 1);
base = mmap((caddr_t)0, JENSEN_SHIFT(mlen), PROT_READ,
MAP_SHARED, fd, (off_t)(JENSEN_SHIFT(Base) + BUS_BASE));
if (base == MAP_FAILED)
{
xf86Msg(X_WARNING, "xf86ReadBIOS: Failed to mmap %s (%s)\n",
DEV_MEM, strerror(errno));
return(-1);
}
xf86SlowBCopyFromBus((unsigned char *)(base+JENSEN_SHIFT(Offset)),
Buf, Len);
munmap((caddr_t)JENSEN_SHIFT(base), JENSEN_SHIFT(mlen));
close(fd);
return(Len);
}
