Author: hailfinger Date: Wed Mar 17 00:59:19 2010 New Revision: 944 URL: http://flashrom.org/trac/coreboot/changeset/944
Log: Add MS-DOS crosscompilation support to flashrom. Tested, works fine. Part 1: Code changes. Signed-off-by: Rudolf Marek <[email protected]> Acked-by: Carl-Daniel Hailfinger <[email protected]> Modified: trunk/hwaccess.c trunk/hwaccess.h trunk/physmap.c Modified: trunk/hwaccess.c ============================================================================== --- trunk/hwaccess.c Tue Mar 16 04:09:10 2010 (r943) +++ trunk/hwaccess.c Wed Mar 17 00:59:19 2010 (r944) @@ -36,7 +36,9 @@ 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 @@ #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 @@ { return *(volatile uint32_t *) addr; } +#endif Modified: trunk/hwaccess.h ============================================================================== --- trunk/hwaccess.h Tue Mar 16 04:09:10 2010 (r943) +++ trunk/hwaccess.h Wed Mar 17 00:59:19 2010 (r944) @@ -68,12 +68,30 @@ #define INW inw #define INL inl #else + +#ifdef __DJGPP__ + +#include <pc.h> + + #define OUTB(x,y) outportb(y, x) + #define OUTW(x,y) outportw(y, x) + #define OUTL(x,y) outportl(y, x) + + #define INB inportb + #define INW inportw + #define INL inportl + +#else + #define OUTB outb #define OUTW outw #define OUTL outl #define INB inb #define INW inw #define INL inl + +#endif + #endif #endif Modified: trunk/physmap.c ============================================================================== --- trunk/physmap.c Tue Mar 16 04:09:10 2010 (r943) +++ trunk/physmap.c Wed Mar 17 00:59:19 2010 (r944) @@ -4,6 +4,7 @@ * Copyright (C) 2009 Peter Stuge <[email protected]> * Copyright (C) 2009 coresystems GmbH * Copyright (C) 2010 Carl-Daniel Hailfinger + * Copyright (C) 2010 Rudolf Marek <[email protected]> * * 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" _______________________________________________ flashrom mailing list [email protected] http://www.flashrom.org/mailman/listinfo/flashrom
