1 files changed, 156 insertions, 0 deletions
diff --git a/src/video_out/libdha/libdha.c b/src/video_out/libdha/libdha.c
new file mode 100644
index 000000000..dda6a6abd
--- /dev/null
+++ b/src/video_out/libdha/libdha.c
@@ -0,0 +1,156 @@
+/*
+    libgha.c - Library for direct hardware access
+    Copyrights:
+    1996/10/27	- Robin Cutshaw (robin@xfree86.org)
+		  XFree86 3.3.3 implementation
+    1999	- Øyvind Aabling.
+    		  Modified for GATOS/win/gfxdump.
+		  
+    2002	- library implementation by Nick Kurshev
+		- dhahelper and some changes by Alex Beregszaszi
+    
+    supported O/S's:	SVR4, UnixWare, SCO, Solaris,
+			FreeBSD, NetBSD, 386BSD, BSDI BSD/386,
+			Linux, Mach/386, ISC
+			DOS (WATCOM 9.5 compiler), Win9x (with mapdev.vxd)
+    Licence: GPL
+    Original location: www.linuxvideo.org/gatos
+*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "libdha.h"
+#include "AsmMacros.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#ifdef ARCH_ALPHA
+#include <sys/io.h>
+#endif
+#include <unistd.h>
+
+/* instead exit() use libdha_exit, and do the 'mother-application' deinit
+   only in this code */
+void libdha_exit(const char *message, int level)
+{
+    printf("libdha: FATAL: %s\n", message);
+    exit(level); /* FIXME */
+}
+
+#if defined(_WIN32)
+#include "sysdep/libdha_win32.c"
+#elif defined (__EMX__)
+#include "sysdep/libdha_os2.c"
+#else
+
+#if defined(SVR4) || defined(SCO325)
+#  if !(defined(sun) && defined (i386) && defined (SVR4))
+#    define DEV_MEM "/dev/pmem"
+#  elif defined(PowerMAX_OS)
+#    define DEV_MEM "/dev/iomem"
+#  endif
+#  ifdef SCO325
+#   undef DEV_MEM
+#   define DEV_MEM "/dev/mem"
+#  endif
+# endif /* SVR4 */
+
+/* Generic version */
+#include <sys/mman.h>
+
+#ifndef DEV_MEM
+#define DEV_MEM "/dev/mem"
+#endif
+
+#ifdef CONFIG_DHAHELPER
+
+#include "kernelhelper/dhahelper.h"
+
+static int mem=-1;
+void *map_phys_mem(unsigned long base, unsigned long size)
+{
+#ifdef ARCH_ALPHA
+/* TODO: move it into sysdep */
+  base += bus_base();
+#endif
+  if ( (mem = open("/dev/dhahelper",O_RDWR)) < 0)
+  {
+    if ( (mem = open(DEV_MEM,O_RDWR)) == -1) {
+	perror("libdha: open(/dev/mem) failed") ; exit(1) ;
+    }
+  }
+  else
+  {
+    dhahelper_memory_t mem_req;
+    
+    mem_req.operation = MEMORY_OP_MAP;
+    mem_req.start = base;
+    mem_req.offset = 0;
+    mem_req.size = size;
+    
+    if (ioctl(mem, DHAHELPER_MEMORY, &mem_req) < 0)
+    {
+	perror("libdha: failed mapping throught kernel helper");
+	return NULL;
+    }
+  }
+  return mmap(0,size,PROT_READ|PROT_WRITE,MAP_SHARED,mem,base) ;
+}
+#else
+
+static int mem=-1;
+void *map_phys_mem(unsigned long base, unsigned long size)
+{    
+#ifdef ARCH_ALPHA
+/* TODO: move it into sysdep */
+  base += bus_base();
+#endif
+  if ( (mem = open(DEV_MEM,O_RDWR)) == -1) {
+    perror("libdha: open(/dev/mem) failed") ; exit(1) ;
+  }
+  return mmap(0,size,PROT_READ|PROT_WRITE,MAP_SHARED,mem,base) ;
+}
+#endif /* CONFIG_DHAHELPER */
+
+void unmap_phys_mem(void *ptr, unsigned long size)
+{
+  int res=munmap(ptr,size) ;
+  if (res == -1) { perror("libdha: munmap() failed") ; exit(1) ; }
+  close(mem);
+}
+#endif
+
+unsigned char  INPORT8(unsigned idx)
+{
+  return inb(idx);
+}
+
+unsigned short INPORT16(unsigned idx)
+{
+  return inw(idx);
+}
+
+unsigned       INPORT32(unsigned idx)
+{
+  return inl(idx);
+}
+
+void          OUTPORT8(unsigned idx,unsigned char val)
+{
+  outb(idx,val);
+}
+
+void          OUTPORT16(unsigned idx,unsigned short val)
+{
+  outw(idx,val);
+}
+
+void          OUTPORT32(unsigned idx,unsigned val)
+{
+  outl(idx,val);
+}
+