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added support for dhahelper 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4475 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
alex 2002-02-02 07:05:52 +00:00
parent 127e0ba191
commit 7129693a26
3 changed files with 150 additions and 1 deletions
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34
libdha/libdha.c
View File

@ -7,7 +7,7 @@
Modified for GATOS/win/gfxdump.
2002 - library implementation by Nick Kurshev
- some changes by Alex Beregszaszi
- dhahelper and some changes by Alex Beregszaszi
supported O/S's: SVR4, UnixWare, SCO, Solaris,
FreeBSD, NetBSD, 386BSD, BSDI BSD/386,
@ -17,6 +17,8 @@
Original location: www.linuxvideo.org/gatos
*/
#include "config.h"
#include "libdha.h"
#include "AsmMacros.h"
#include <stdio.h>
@ -60,14 +62,44 @@ void libdha_exit(const char *message, int level)
#define DEV_MEM "/dev/mem"
#endif
#ifdef CONFIG_DHAHELPER
static int mem=-1;
void *map_phys_mem(unsigned base, unsigned size)
{
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 base, unsigned size)
{
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 size)
{

94
libdha/sysdep/AsmMacros_x86.h
View File

@ -11,24 +11,92 @@
#error This stuff is not ported on your system
#else
#include "config.h"
#ifdef CONFIG_DHAHELPER
#include <sys/ioctl.h>
#include "../kernelhelper/dhahelper.h"
extern int dhahelper_fd;
extern int dhahelper_initialized;
#endif
static __inline__ void outb(short port,char val)
{
#ifdef CONFIG_DHAHELPER
if (dhahelper_initialized == 1)
{
dhahelper_port_t _port;
_port.operation = PORT_OP_WRITE;
_port.addr = port;
_port.size = 1;
_port.value = val;
if (ioctl(dhahelper_fd, DHAHELPER_PORT, &_port) == 0)
return;
}
else
#endif
__asm__ __volatile__("outb %0,%1" : :"a" (val), "d" (port));
return;
}
static __inline__ void outw(short port,short val)
{
#ifdef CONFIG_DHAHELPER
if (dhahelper_initialized == 1)
{
dhahelper_port_t _port;
_port.operation = PORT_OP_WRITE;
_port.addr = port;
_port.size = 2;
_port.value = val;
if (ioctl(dhahelper_fd, DHAHELPER_PORT, &_port) == 0)
return;
}
else
#endif
__asm__ __volatile__("outw %0,%1" : :"a" (val), "d" (port));
return;
}
static __inline__ void outl(short port,unsigned int val)
{
#ifdef CONFIG_DHAHELPER
if (dhahelper_initialized == 1)
{
dhahelper_port_t _port;
_port.operation = PORT_OP_WRITE;
_port.addr = port;
_port.size = 4;
_port.value = val;
if (ioctl(dhahelper_fd, DHAHELPER_PORT, &_port) == 0)
return;
}
else
#endif
__asm__ __volatile__("outl %0,%1" : :"a" (val), "d" (port));
return;
}
static __inline__ unsigned int inb(short port)
{
unsigned char ret;
#ifdef CONFIG_DHAHELPER
if (dhahelper_initialized == 1)
{
dhahelper_port_t _port;
_port.operation = PORT_OP_READ;
_port.addr = port;
_port.size = 1;
if (ioctl(dhahelper_fd, DHAHELPER_PORT, &_port) == 0)
return _port.value;
}
else
#endif
__asm__ __volatile__("inb %1,%0" :
"=a" (ret) :
"d" (port));
@ -38,6 +106,19 @@ static __inline__ unsigned int inb(short port)
static __inline__ unsigned int inw(short port)
{
unsigned short ret;
#ifdef CONFIG_DHAHELPER
if (dhahelper_initialized == 1)
{
dhahelper_port_t _port;
_port.operation = PORT_OP_READ;
_port.addr = port;
_port.size = 2;
if (ioctl(dhahelper_fd, DHAHELPER_PORT, &_port) == 0)
return _port.value;
}
else
#endif
__asm__ __volatile__("inw %1,%0" :
"=a" (ret) :
"d" (port));
@ -47,6 +128,19 @@ static __inline__ unsigned int inw(short port)
static __inline__ unsigned int inl(short port)
{
unsigned int ret;
#ifdef CONFIG_DHAHELPER
if (dhahelper_initialized == 1)
{
dhahelper_port_t _port;
_port.operation = PORT_OP_READ;
_port.addr = port;
_port.size = 4;
if (ioctl(dhahelper_fd, DHAHELPER_PORT, &_port) == 0)
return _port.value;
}
else
#endif
__asm__ __volatile__("inl %1,%0" :
"=a" (ret) :
"d" (port));

23
libdha/sysdep/pci_linux.c
View File

@ -10,8 +10,26 @@
#include <sys/io.h>
#endif
#include "config.h"
#ifdef CONFIG_DHAHELPER
#include <fcntl.h>
int dhahelper_initialized = 0;
int dhahelper_fd = 0;
#endif
static __inline__ int enable_os_io(void)
{
#ifdef CONFIG_DHAHELPER
dhahelper_fd = open("/dev/dhahelper", O_RDWR);
if (dhahelper_fd > 0)
{
dhahelper_initialized = 1;
return(0);
}
dhahelper_initialized = -1;
#endif
if (iopl(3) != 0)
return(errno);
return(0);
@ -19,6 +37,11 @@ static __inline__ int enable_os_io(void)
static __inline__ int disable_os_io(void)
{
#ifdef CONFIG_DHAHELPER
if (dhahelper_initialized == 1)
close(dhahelper_fd);
else
#endif
if (iopl(0) != 0)
return(errno);
return(0);