/* $XFree86: mit/server/ddx/x386/etc/ati.test.c,v 1.2 1993/03/27 09:31:24 dawes Exp $ */ /* ati.test.c -- Gather information about ATI VGA WONDER cards * Created: Sun Aug 9 10:15:01 1992 * Revised: Fri Aug 21 14:04:29 1992 by root * Author: Rickard E. Faith, faith@cs.unc.edu * Copyright 1992 Rickard E. Faith; All Rights Reserved. * May be distributed freely for any purpose as long as the * copyright notice and the warranty disclaimer are kept. * This program comes with ABSOLUTELY NO WARRANTY. * * Log */ #include #include #include #include /* These are from the x386 compile.h for Linux */ static void inline outb(unsigned short port, char value) { __asm__ volatile ("outb %0,%1" ::"a" ((char) value),"d" ((unsigned short) port)); } static void inline outw(unsigned short port, short value) { __asm__ volatile ("outw %0,%1" ::"a" ((short) value),"d" ((unsigned short) port)); } static unsigned char inline inb(unsigned short port) { unsigned char _v; __asm__ volatile ("inb %1,%0" :"=a" (_v):"d" ((unsigned short) port)); return _v; } static unsigned short inline inw(unsigned short port) { unsigned short _v; __asm__ volatile ("inw %1,%0" :"=a" (_v):"d" ((unsigned short) port)); return _v; } #define FALSE -1 #define TRUE 0 #define ATI_BOARD_V3 0 /* which ATI board does the user have? */ #define ATI_BOARD_V4 1 /* keep these chronologically increasing */ #define ATI_BOARD_V5 2 #define ATI_BOARD_PLUS 3 #define ATI_BOARD_XL 4 int ATIExtReg, ATIBoard; int main( void ) { const char signature[] = " 761295520"; const int bios_data_size = 0x50; char bios_data[bios_data_size]; char bios_signature[10]; int fd; int videoRam; if ((fd = open( "/dev/mem", O_RDONLY )) < 0 || lseek( fd, 0xc0030, SEEK_SET) < 0 || read( fd, bios_signature, 10 ) != 10) { if (fd >= 0) close( fd ); printf( "Failed to read VGA BIOS. Cannot detect ATI card.\n" ); return FALSE; } if (strncmp( signature, bios_signature, 10 )) { printf( "Incorrect Signature for ATI BIOS\n" ); return FALSE; } close( fd ); /* Assume an ATI card. Now look in the BIOS for magic numbers. */ if ((fd = open( "/dev/mem", O_RDONLY )) < 0 || lseek( fd, 0xc0000, SEEK_SET ) < 0 || read( fd, bios_data, bios_data_size ) != bios_data_size) { if (fd >= 0) close( fd ); printf( "Failed to read VGA BIOS. Cannot set up ATI card.\n" ); return FALSE; } close( fd ); printf( "ATI BIOS Information Block:\n" ); printf( " Signature code: %c%c = ", bios_data[ 0x40 ], bios_data[ 0x41 ] ); if (bios_data[ 0x40 ] != '3') printf( "Unknown\n" ); else switch( bios_data[ 0x41 ] ) { case '1': printf( "VGA WONDER\n" ); break; case '2': printf( "EGA WONDER800+\n" ); break; case '3': printf( "VGA BASIC-16\n" ); break; default: printf( "Unknown\n" ); break; } printf( " Chip version: %c = ", bios_data[ 0x43 ] ); switch (bios_data[ 0x43 ] ) { case '1': printf( "ATI 18800\n" ); break; case '2': printf( "ATI 18800-1\n" ); break; case '3': printf( "ATI 28800-2\n" ); break; case '4': case '5': printf( "ATI 28800-%c\n", bios_data[ 0x43 ] ); break; default: printf( "Unknown\n" ); break; } printf( " BIOS version: %d.%d\n", bios_data[ 0x4c ], bios_data[ 0x4d ] ); printf( "\n Byte at offset 0x42 = 0x%02x\n", bios_data[ 0x42 ] ); printf( " 8 and 16 bit ROM supported: %s\n", bios_data[ 0x42 ] & 0x01 ? "Yes" : "No" ); printf( " Mouse chip present: %s\n", bios_data[ 0x42 ] & 0x02 ? "Yes" : "No" ); printf( " Inport compatible mouse port : %s\n", bios_data[ 0x42 ] & 0x04 ? "Yes" : "No" ); printf( " Micro Channel supported: %s\n", bios_data[ 0x42 ] & 0x08 ? "Yes" : "No" ); printf( " Clock chip present: %s\n", bios_data[ 0x42 ] & 0x10 ? "Yes" : "No" ); printf( " Uses c000:0 to d000:ffff: %s\n", bios_data[ 0x42 ] & 0x80 ? "Yes" : "No" ); printf( "\n Byte at offset 0x44 = 0x%02x\n", bios_data[ 0x44 ] ); printf( " Supports 70Hz non-interlaced: %s\n", bios_data[ 0x44 ] & 0x01 ? "No" : "Yes" ); printf( " Supports Korean characters: %s\n", bios_data[ 0x44 ] & 0x02 ? "Yes" : "No" ); printf( " Uses 45Mhz memory clock: %s\n", bios_data[ 0x44 ] & 0x04 ? "Yes" : "No" ); printf( " Supports zero wait states: %s\n", bios_data[ 0x44 ] & 0x08 ? "Yes" : "No" ); printf( " Uses paged ROMS: %s\n", bios_data[ 0x44 ] & 0x10 ? "Yes" : "No" ); printf( " 8514/A hardware on board: %s\n", bios_data[ 0x44 ] & 0x40 ? "No" : "Yes" ); printf( " 32K color DAC on board: %s\n", bios_data[ 0x44 ] & 0x80 ? "Yes" : "No" ); ATIExtReg = *((short int *)bios_data + 0x08); ioperm( ATIExtReg, 2, 1 ); switch( bios_data[ 0x43 ] ) { case '1': ATIBoard = ATI_BOARD_V3; break; case '2': if (bios_data[ 0x42 ] & 0x10) ATIBoard = ATI_BOARD_V5; else ATIBoard = ATI_BOARD_V4; break; case '3': case '4': ATIBoard = ATI_BOARD_PLUS; break; case '5': default: if (bios_data[ 0x44 ] & 0x80) ATIBoard = ATI_BOARD_XL; else ATIBoard = ATI_BOARD_PLUS; } printf( "\nThis video adapter is a: " ); switch (ATIBoard) { case ATI_BOARD_V3: printf( "VGA WONDER V3\n" ); break; case ATI_BOARD_V4: printf( "VGA WONDER V4\n" ); break; case ATI_BOARD_V5: printf( "VGA WONDER V5\n" ); break; case ATI_BOARD_PLUS: printf( "VGA WONDER PLUS (V6)\n" ); break; case ATI_BOARD_XL: printf( "VGA WONDER XL (V7)\n" ); break; default: printf( "Unknown\n" ); break; } videoRam = 0; if (bios_data[ 0x43 ] <= '2') { outb( ATIExtReg, 0xbb ); videoRam = (inb( ATIExtReg + 1 ) & 0x20) ? 512 : 256; } else { outb( ATIExtReg, 0xb0 ); switch (inb( ATIExtReg + 1 ) & 0x18) { case 0x00: videoRam = 256; break; case 0x10: videoRam = 512; break; case 0x08: videoRam = 1024; break; } } printf( "Amount of RAM on video adapter: %dk\n", videoRam ); printf( "\nThe extended registers (ATIExtREG) are at 0x%x\n", ATIExtReg ); printf( "The x386 ATI driver will set ATIBoard = %d\n", ATIBoard ); return TRUE; }