187 lines
4.3 KiB
C
187 lines
4.3 KiB
C
/* $XConsortium: mRegs.c /main/2 1996/10/27 11:49:43 kaleb $ */
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/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/chips/util/mRegs.c,v 1.5 2000/10/23 12:10:13 alanh Exp $ */
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#ifdef __NetBSD__
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# include <sys/types.h>
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# include <machine/pio.h>
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# include <machine/sysarch.h>
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#else
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# if defined(SVR4) && defined(i386)
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# include <sys/types.h>
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# ifdef NCR
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/* broken NCR <sys/sysi86.h> */
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# define __STDC
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# include <sys/sysi86.h>
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# undef __STDC
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# else
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# include <sys/sysi86.h>
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# endif
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# ifdef SVR4
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# if !defined(sun)
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# include <sys/seg.h>
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# endif
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# endif
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# include <sys/v86.h>
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# if defined(sun)
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# include <sys/psw.h>
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# endif
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# endif
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# include "AsmMacros.h"
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#endif /* NetBSD */
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef __NetBSD__
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# define SET_IOPL() i386_iopl(3)
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# define RESET_IOPL() i386_iopl(0)
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#else
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# if defined(SVR4) && defined(i386)
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# ifndef SI86IOPL
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# define SET_IOPL() sysi86(SI86V86,V86SC_IOPL,PS_IOPL)
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# define RESET_IOPL() sysi86(SI86V86,V86SC_IOPL,0)
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# else
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# define SET_IOPL() sysi86(SI86IOPL,3)
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# define RESET_IOPL() sysi86(SI86IOPL,0)
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# endif
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# else
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# ifdef linux
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# define SET_IOPL() iopl(3)
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# define RESET_IOPL() iopl(0)
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# else
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# define SET_IOPL() (void)0
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# define RESET_IOPL() (void)0
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# endif
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# endif
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#endif
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int hex2int(char* str);
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int main(int argc, char** argv)
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{
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int i, value, index = 0;
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char c, cport;
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char* str;
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unsigned int port, port1 = 0;
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int query = 0;
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if(argc < 2) {
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printf("usage: %s [Cvvxx [Cvvxx]] [Dxx]\n",argv[0]);
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printf(" where C = A|a write vv to ARxx\n");
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printf(" = C|c write vv to CRxx\n");
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printf(" = F|f write vv to FRxx (6555x only)\n");
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printf(" = G|g write vv to GRxx\n");
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printf(" = M|m write vv to MRxx (6555x only)\n");
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printf(" = S|s write vv to SRxx\n");
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printf(" = X|x write vv to XRxx\n");
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printf(" where D = Y|y write xx to FCR\n");
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printf(" = Z|z write vv to MSR\n");
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printf(" xx is in hexadecimal\n");
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printf(" vv is in hexadecimal or '?' for query\n");
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}
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SET_IOPL();
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for(i = 1; i < argc; i++){
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value = 0;
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str = argv[i];
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c = *str++;
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switch (c) {
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case 'f':
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case 'F':
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cport = 'F';
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port = 0x3D0;
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break;
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case 'c':
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case 'C':
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cport = 'C';
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port = 0x3D4;
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break;
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case 'x':
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case 'X':
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cport = 'X';
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port = 0x3D6;
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break;
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case 'g':
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case 'G':
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cport = 'G';
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port = 0x3CE;
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break;
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case 'a':
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case 'A':
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cport = 'A';
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port = 0x3C0;
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break;
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case 's':
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case 'S':
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cport = 'S';
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port = 0x3C4;
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break;
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case 'm':
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case 'M':
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cport = 'M';
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port = 0x3D2;
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break;
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case 'y':
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case 'Y':
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cport = 'Y';
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port = 0x3DA;
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port1 = 0x3CA;
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break;
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case 'z':
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case 'Z':
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cport = 'Z';
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port = 0x3C2;
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port1 = 0x3CC;
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break;
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default:
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continue;
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break;
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}
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if ((cport != 'Z') && (cport != 'Y')) index = inb(port);
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while ((c = *str++)) {
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if (c == '?') {
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query = 1;
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}
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if(c >= '0' && c <= '9')
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value = (value << 4) | (c - '0'); /*ASCII assumed*/
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else if(c >= 'A' && c < 'G')
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value = (value << 4) | (c - 'A'+10); /*ASCII assumed*/
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else if(c >= 'a' && c < 'g')
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value = (value << 4) | (c - 'a'+10); /*ASCII assumed*/
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}
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if ((cport != 'Z') && (cport != 'Y')) outb(port,value&0xFF);
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if (query) {
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if ((cport != 'Z') && (cport != 'Y'))
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printf("%cR%X: 0x%X\n", cport, value & 0xFF,
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inb(port+1)&0xFF);
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else
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if (cport == 'Z')
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printf("MSR: 0x%X\n", inb(port1)&0xFF);
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else
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printf("FCR: 0x%X\n", inb(port1)&0xFF);
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} else {
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if ((cport != 'Z') && (cport != 'Y')) {
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printf("%cR%X: 0x%X -> 0x%X\n", cport, value & 0xFF,
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inb(port+1)&0xFF, (value&0xFF00)>>8);
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outw(port, value);
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outb(port, index &0xFF);
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} else {
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if (cport == 'Z')
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printf("MSR: 0x%X -> 0x%X\n", inb(port1)&0xFF, value&0xFF);
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else
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printf("FCR: 0x%X -> 0x%X\n", inb(port1)&0xFF, value&0xFF);
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outb(port, value & 0xFF);
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}
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}
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}
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RESET_IOPL();
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return 0;
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}
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