Add MS-DOS crosscompilation support
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>
diff --git a/physmap.c b/physmap.c
index fba7a53..38a395c 100644
--- a/physmap.c
+++ b/physmap.c
@@ -4,6 +4,7 @@
* Copyright (C) 2009 Peter Stuge <peter@stuge.se>
* Copyright (C) 2009 coresystems GmbH
* Copyright (C) 2010 Carl-Daniel Hailfinger
+ * Copyright (C) 2010 Rudolf Marek <r.marek@assembler.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -27,7 +28,77 @@
#include <errno.h>
#include "flash.h"
-#ifdef __DARWIN__
+#ifdef __DJGPP__
+#include <dpmi.h>
+
+#define MEM_DEV "dpmi"
+
+unsigned short segFS = 0;
+
+void *sys_physmap(unsigned long phys_addr, size_t len)
+{
+ int ret;
+ __dpmi_meminfo mi;
+
+ if (segFS == 0) {
+ segFS = __dpmi_allocate_ldt_descriptors (1);
+ __dpmi_set_segment_base_address (segFS, 0x0);
+ __dpmi_set_segment_limit (segFS, 0xffffffff);
+ }
+
+ mi.address = phys_addr;
+ mi.size = len;
+ ret = __dpmi_physical_address_mapping (&mi);
+
+ if (ret != 0) {
+ return NULL;
+ }
+
+ return (void *) mi.address;
+}
+
+#define sys_physmap_rw_uncached sys_physmap
+
+#include <sys/movedata.h>
+#include <sys/segments.h>
+#include <go32.h>
+
+static void *realmem_cpy;
+
+void *sys_physmap_ro_cached(unsigned long phys_addr, size_t len)
+{
+ /* no support for not a 1MB of mem */
+ if ((phys_addr + len) > 1024*1024)
+ return NULL;
+
+ if (realmem_cpy)
+ return realmem_cpy + phys_addr;
+
+ realmem_cpy = valloc(1024*1024);
+
+ if (!realmem_cpy)
+ return NULL;
+
+ movedata(_dos_ds, 0, _my_ds(), (unsigned long) realmem_cpy, 1024*1024);
+ return realmem_cpy + phys_addr;
+}
+
+
+void physunmap(void *virt_addr, size_t len)
+{
+ __dpmi_meminfo mi;
+
+ /* we ignore unmaps for our cheat 1MB copy */
+ if ((virt_addr >= realmem_cpy) && ((virt_addr + len) <= (realmem_cpy + 1024*1024))) {
+ return;
+ }
+
+ mi.address = (unsigned long) virt_addr;
+ __dpmi_free_physical_address_mapping(&mi);
+}
+
+#elif defined(__DARWIN__)
+
#include <DirectIO/darwinio.h>
#define MEM_DEV "DirectIO"