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Code Issues Releases Wiki Activity

Add MS-DOS crosscompilation support

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Tested, works fine. Part 1: Code changes.

Corresponding to flashrom svn r944.

Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
This commit is contained in:
Rudolf Marek
2010-03-16 23:59:19 +00:00
committed by Carl-Daniel Hailfinger
parent ccf7a2a231
commit 03ae5c117a
3 changed files with 132 additions and 2 deletions
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43
hwaccess.c
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@ -36,7 +36,9 @@ void get_io_perms(void)
if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) != 0) {
#elif defined(__FreeBSD__) || defined (__DragonFly__)
if ((io_fd = open("/dev/io", O_RDWR)) < 0) {
#else
#elif __DJGPP__
if (0) {
#else
if (iopl(3) != 0) {
#endif
fprintf(stderr, "ERROR: Could not get I/O privileges (%s).\n"
@ -52,6 +54,44 @@ void release_io_perms(void)
#endif
}
#ifdef __DJGPP__
extern unsigned short segFS;
#include <sys/farptr.h>
void mmio_writeb(uint8_t val, void *addr)
{
_farpokeb(segFS, (unsigned long) addr, val);
}
void mmio_writew(uint16_t val, void *addr)
{
_farpokew(segFS, (unsigned long) addr, val);
}
void mmio_writel(uint32_t val, void *addr)
{
_farpokel(segFS, (unsigned long) addr, val);
}
uint8_t mmio_readb(void *addr)
{
return _farpeekb(segFS, (unsigned long) addr);
}
uint16_t mmio_readw(void *addr)
{
return _farpeekw(segFS, (unsigned long) addr);
}
uint32_t mmio_readl(void *addr)
{
return _farpeekl(segFS, (unsigned long) addr);
}
#else
void mmio_writeb(uint8_t val, void *addr)
{
*(volatile uint8_t *) addr = val;
@ -81,3 +121,4 @@ uint32_t mmio_readl(void *addr)
{
return *(volatile uint32_t *) addr;
}
#endif