mirror of https://github.com/mpv-player/mpv
163 lines
3.1 KiB
C
163 lines
3.1 KiB
C
/*
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This file is based on:
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$XFree86: xc/programs/Xserver/hw/xfree86/drivers/chips/util/AsmMacros.h,v 1.1 2001/11/16 21:13:34 tsi Exp $
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Modified for readability by Nick Kurshev
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*/
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#ifndef __ASM_MACROS_X86_H
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#define __ASM_MACROS_X86_H
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#if defined (WINNT)
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#error This stuff is not ported on your system
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#else
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#include "config.h"
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#ifdef CONFIG_DHAHELPER
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#include <sys/ioctl.h>
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#include "../kernelhelper/dhahelper.h"
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extern int dhahelper_fd;
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extern int dhahelper_initialized;
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#endif
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static __inline__ void outb(short port,char val)
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{
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#ifdef CONFIG_DHAHELPER
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if (dhahelper_initialized == 1)
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{
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dhahelper_port_t _port;
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_port.operation = PORT_OP_WRITE;
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_port.addr = port;
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_port.size = 1;
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_port.value = val;
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if (ioctl(dhahelper_fd, DHAHELPER_PORT, &_port) == 0)
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return;
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}
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else
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#endif
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__asm__ __volatile__("outb %0,%1" : :"a" (val), "d" (port));
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return;
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}
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static __inline__ void outw(short port,short val)
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{
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#ifdef CONFIG_DHAHELPER
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if (dhahelper_initialized == 1)
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{
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dhahelper_port_t _port;
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_port.operation = PORT_OP_WRITE;
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_port.addr = port;
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_port.size = 2;
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_port.value = val;
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if (ioctl(dhahelper_fd, DHAHELPER_PORT, &_port) == 0)
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return;
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}
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else
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#endif
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__asm__ __volatile__("outw %0,%1" : :"a" (val), "d" (port));
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return;
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}
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static __inline__ void outl(short port,unsigned int val)
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{
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#ifdef CONFIG_DHAHELPER
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if (dhahelper_initialized == 1)
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{
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dhahelper_port_t _port;
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_port.operation = PORT_OP_WRITE;
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_port.addr = port;
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_port.size = 4;
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_port.value = val;
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if (ioctl(dhahelper_fd, DHAHELPER_PORT, &_port) == 0)
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return;
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}
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else
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#endif
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__asm__ __volatile__("outl %0,%1" : :"a" (val), "d" (port));
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return;
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}
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static __inline__ unsigned int inb(short port)
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{
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unsigned char ret;
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#ifdef CONFIG_DHAHELPER
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if (dhahelper_initialized == 1)
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{
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dhahelper_port_t _port;
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_port.operation = PORT_OP_READ;
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_port.addr = port;
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_port.size = 1;
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if (ioctl(dhahelper_fd, DHAHELPER_PORT, &_port) == 0)
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return _port.value;
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}
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else
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#endif
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__asm__ __volatile__("inb %1,%0" :
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"=a" (ret) :
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"d" (port));
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return ret;
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}
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static __inline__ unsigned int inw(short port)
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{
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unsigned short ret;
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#ifdef CONFIG_DHAHELPER
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if (dhahelper_initialized == 1)
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{
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dhahelper_port_t _port;
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_port.operation = PORT_OP_READ;
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_port.addr = port;
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_port.size = 2;
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if (ioctl(dhahelper_fd, DHAHELPER_PORT, &_port) == 0)
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return _port.value;
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}
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else
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#endif
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__asm__ __volatile__("inw %1,%0" :
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"=a" (ret) :
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"d" (port));
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return ret;
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}
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static __inline__ unsigned int inl(short port)
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{
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unsigned int ret;
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#ifdef CONFIG_DHAHELPER
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if (dhahelper_initialized == 1)
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{
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dhahelper_port_t _port;
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_port.operation = PORT_OP_READ;
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_port.addr = port;
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_port.size = 4;
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if (ioctl(dhahelper_fd, DHAHELPER_PORT, &_port) == 0)
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return _port.value;
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}
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else
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#endif
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__asm__ __volatile__("inl %1,%0" :
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"=a" (ret) :
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"d" (port));
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return ret;
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}
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static __inline__ void intr_disable()
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{
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__asm__ __volatile__("cli");
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}
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static __inline__ void intr_enable()
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{
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__asm__ __volatile__("sti");
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}
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#endif
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#endif
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