/* $XConsortium: xf86RamDac.c,v 1.3 95/01/26 15:34:05 kaleb Exp $ */ /* $XFree86: xc/programs/Xserver/hw/xfree86/accel/agx/xf86RamDac.c,v 3.4 1995/01/28 15:49:24 dawes Exp $ */ /* * Copyright 1994 by Henry A. Worth, Sunnyvale, California. * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of Henry Worth not be used in * advertising or publicity pertaining to distribution of the software * without specific, written prior permission. Henry Worth makes no * representations about the suitability of this software for any purpose. It * is provided "as is" without express or implied warranty. * * HENRY A. WORTH DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS, IN NO EVENT SHALL HENRY A. WORTH BE LIABLE FOR ANY SPECIAL, * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. * * Author: Henry A. Worth (haw30@eng.amdahl.com) * */ #include "X.h" #include "Xmd.h" #include "input.h" #include "scrnintstr.h" #include "pixmapstr.h" #include "mipointer.h" #include "cursorstr.h" #include "compiler.h" #include "xf86.h" #include "xf86Priv.h" #include "xf86Procs.h" #include "xf86_OSlib.h" #include "xf86_HWlib.h" #define XCONFIG_FLAGS_ONLY #include "xf86_Config.h" #include "xf86RamDac.h" #include "Bt485.h" #include "Bt481.h" #include "xf861502x.h" /* RamDac related globals */ Bool xf86DacSyncOnGreen = FALSE; Bool xf86Dac8Bit = FALSE; int xf86RamDacType = -1; int xf86MaxCurs = 0; int xf86FrameX0 = 0; int xf86FrameY0 = 0; int xf86MaxClock; int xf86MaxClockDirect; int xf86MinClockDoubled = -1; int xf86MaxClockDoubled = -1; unsigned char xf86SwapBits[256] = { 0x00,0x80,0x40,0xC0,0x20,0xA0,0x60,0xE0,0x10,0x90,0x50,0xD0,0x30,0xB0,0x70,0xF0, 0x08,0x88,0x48,0xC8,0x28,0xA8,0x68,0xE8,0x18,0x98,0x58,0xD8,0x38,0xB8,0x78,0xF8, 0x04,0x84,0x44,0xC4,0x24,0xA4,0x64,0xE4,0x14,0x94,0x54,0xD4,0x34,0xB4,0x74,0xF4, 0x0C,0x8C,0x4C,0xCC,0x2C,0xAC,0x6C,0xEC,0x1C,0x9C,0x5C,0xDC,0x3C,0xBC,0x7C,0xFC, 0x02,0x82,0x42,0xC2,0x22,0xA2,0x62,0xE2,0x12,0x92,0x52,0xD2,0x32,0xB2,0x72,0xF2, 0x0A,0x8A,0x4A,0xCA,0x2A,0xAA,0x6A,0xEA,0x1A,0x9A,0x5A,0xDA,0x3A,0xBA,0x7A,0xFA, 0x06,0x86,0x46,0xC6,0x26,0xA6,0x66,0xE6,0x16,0x96,0x56,0xD6,0x36,0xB6,0x76,0xF6, 0x0E,0x8E,0x4E,0xCE,0x2E,0xAE,0x6E,0xEE,0x1E,0x9E,0x5E,0xDE,0x3E,0xBE,0x7E,0xFE, 0x01,0x81,0x41,0xC1,0x21,0xA1,0x61,0xE1,0x11,0x91,0x51,0xD1,0x31,0xB1,0x71,0xF1, 0x09,0x89,0x49,0xC9,0x29,0xA9,0x69,0xE9,0x19,0x99,0x59,0xD9,0x39,0xB9,0x79,0xF9, 0x05,0x85,0x45,0xC5,0x25,0xA5,0x65,0xE5,0x15,0x95,0x55,0xD5,0x35,0xB5,0x75,0xF5, 0x0D,0x8D,0x4D,0xCD,0x2D,0xAD,0x6D,0xED,0x1D,0x9D,0x5D,0xDD,0x3D,0xBD,0x7D,0xFD, 0x03,0x83,0x43,0xC3,0x23,0xA3,0x63,0xE3,0x13,0x93,0x53,0xD3,0x33,0xB3,0x73,0xF3, 0x0B,0x8B,0x4B,0xCB,0x2B,0xAB,0x6B,0xEB,0x1B,0x9B,0x5B,0xDB,0x3B,0xBB,0x7B,0xFB, 0x07,0x87,0x47,0xC7,0x27,0xA7,0x67,0xE7,0x17,0x97,0x57,0xD7,0x37,0xB7,0x77,0xF7, 0x0F,0x8F,0x4F,0xCF,0x2F,0xAF,0x6F,0xEF,0x1F,0x9F,0x5F,0xDF,0x3F,0xBF,0x7F,0xFF }; /* pointers to chipset/implementation specific funtions */ void (*xf86OutRamDacReg)( #ifdef __STDC__ unsigned short, unsigned char, unsigned char #endif ); void (*xf86OutRamDacData)( #ifdef __STDC__ unsigned short, unsigned char #endif ); unsigned char (*xf86InRamDacReg)( #ifdef __STDC__ unsigned short #endif ); void (*xf86RamDacHWSave)( #ifdef __STDC__ union xf86RamDacSave * #endif ) = xf86RamDacHWNoop; void (*xf86RamDacHWRestore)( #ifdef _STDC__ union xf86RamDacSave * #endif ) = xf86RamDacHWNoop; void (*xf86RamDacInit)( #ifdef __STDC__ void #endif ) = xf86RamDacNoopInit; /* * xf86ProbeRamDac() * * generic probe for the RamDac type. * */ void xf86ProbeRamDac( #ifdef __STDC__ void #endif ) { unsigned char tmp, tmp1, tmp2; if (xf86RamDacType == UNKNOWN_DAC) { /* * Bt485/AT&T20C505 first * * Probe for the bloody thing. Set 0x3C6 to a bogus value, then * try to get the Bt485 status register. If it's there, then we will * get something else back from this port. */ unsigned char tmp2; tmp = xf86InRamDacReg(BT485_COMMAND_REG_0); xf86OutRamDacReg(BT485_COMMAND_REG_0,0x00,0x0F); if (((tmp2 = xf86InRamDacReg(BT485_STATUS_REG)) & 0x80) == 0x80) { /* * Found either a BrookTree Bt485 or AT&T 20C505. */ if ((tmp2 & 0xF0) == 0xD0) { xf86RamDacType = ATT20C505_DAC; if (xf86Verbose) ErrorF("%s: Detected an AT&T 20C505 RAMDAC\n", XCONFIG_PROBED); } else { /* could also be a BT484 or AT&T 20C504 */ xf86RamDacType = BT485_DAC; if (xf86Verbose) ErrorF("%s: Detected a BrookTree Bt485 RAMDAC\n", XCONFIG_PROBED); } xf86MaxCurs = 64; xf86RamDacHWSave = xf86Bt485HWSave; xf86RamDacHWRestore = xf86Bt485HWRestore; xf86RamDacInit = xf86Bt485Init; } xf86OutRamDacReg(BT485_COMMAND_REG_0,0x00,tmp); #if 0 /* not fully converted yet */ /* If it wasn't a Bt485 or AT&T 20C505, probe for the Ti3020 */ if (xf86RamDacType == UNKNOWN_DAC) { tmp1 = xf86InRamDacReg( TI_INDEX_REG ); if (xf86InTiIndReg( TI_ID ) == TI_VIEWPOINT_ID) { /* * Found TI ViewPoint DAC */ if (xf86Verbose) ErrorF("%s : Detected a TI ViewPoint 3020 RAMDAC\n", XCONFIG_PROBED); xf86RamDacType = TI3020_DAC; } xf86OutRamDacData( TI_INDEX_REG, tmp1 ); xf86MaxCurs = 64; xf86RamDacHWSave = xf86TiHWSave; xf86RamDacHWRestore = xf86TiHWRestore; xf86RamDacInit = xf86TiInit; } #endif /* If it wasn't a Ti3020 either, it must be a "normal" ramdac */ if (xf86RamDacType == UNKNOWN_DAC) { xf86RamDacType = NORMAL_DAC; if (xf86Verbose) ErrorF("%s : Assuming normal RAMDAC\n", XCONFIG_PROBED); xf86MaxCurs = 0; xf86RamDacHWSave = xf86RamDacHWNoop; xf86RamDacHWRestore = xf86RamDacHWNoop; xf86RamDacInit = xf86RamDacNoopInit; } } } /* * xf86SetUpRamDac() * * setup pointers and globals for the RamDac type. * */ void xf86SetUpRamDac( #ifdef __STDC__ void #endif ) { switch ( xf86RamDacType ) { case BT485_DAC: xf86MaxClock = 135000; xf86MaxClockDirect = 90000; xf86MinClockDoubled = 33750; xf86MaxClockDoubled = 67500; xf86MaxCurs = 64; xf86RamDacHWSave = xf86Bt485HWSave; xf86RamDacHWRestore = xf86Bt485HWRestore; xf86RamDacInit = xf86Bt485Init; break; case ATT20C505_DAC: xf86MaxClock = 135000; xf86MaxClockDirect = 110000; xf86MinClockDoubled = 45000; xf86MaxClockDoubled = 67500; xf86MaxCurs = 64; xf86RamDacHWSave = xf86Bt485HWSave; xf86RamDacHWRestore = xf86Bt485HWRestore; xf86RamDacInit = xf86Bt485Init; break; case ATT20C504_DAC: xf86MaxClock = 110000; xf86MaxClockDirect = 90000; xf86MinClockDoubled = 45000; xf86MaxClockDoubled = 55000; xf86MaxCurs = 32; xf86RamDacHWSave = xf86Bt485HWSave; xf86RamDacHWRestore = xf86Bt485HWRestore; xf86RamDacInit = xf86Bt485Init; break; case BT484_DAC: xf86MaxClock = 85000; xf86MaxClockDirect = 85000; xf86MaxCurs = 32; xf86RamDacHWSave = xf86Bt485HWSave; xf86RamDacHWRestore = xf86Bt485HWRestore; xf86RamDacInit = xf86Bt485Init; break; case BT482_DAC: xf86MaxClock = 86500; xf86MaxClockDirect = 86500; xf86MaxCurs = 32; xf86RamDacHWSave = xf86Bt481HWSave; xf86RamDacHWRestore = xf86Bt481HWRestore; xf86RamDacInit = xf86Bt481Init; break; case BT481_DAC: xf86MaxClock = 86500; xf86MaxClockDirect = 86500; xf86MaxCurs = 0; xf86RamDacHWSave = xf86Bt481HWSave; xf86RamDacHWRestore = xf86Bt481HWRestore; xf86RamDacInit = xf86Bt481Init; break; case SC15025_DAC: case SC15021_DAC: xf86MaxClock = 110000; xf86MaxClockDirect = 110000; xf86MaxCurs = 0; xf86RamDacHWSave = xf86Sc1502xHWSave; xf86RamDacHWRestore = xf86Sc1502xHWRestore; xf86RamDacInit = xf86Sc1502xInit; SC15021 = FALSE; SC1502X_EPRF_SET = FALSE; SC1502X_IPF_ACCESS = FALSE; if( xf86InSc1502xIndReg( SC1502X_ID1 ) == SC1502X_ID1_SIERRA && xf86InSc1502xIndReg( SC1502X_ID4 ) == SC1502X_ID4_1502X ) { if( xf86Verbose ) ErrorF("%s : Sierra 1502x RAMDAC -- Using RS2 access method.\n", XCONFIG_PROBED ); } else { SC1502X_IPF_ACCESS = TRUE; if( xf86InSc1502xIndReg( SC1502X_ID1 ) == SC1502X_ID1_SIERRA && xf86InSc1502xIndReg( SC1502X_ID4 ) == SC1502X_ID4_1502X ) { if( xf86Verbose ) ErrorF( "%s : Sierra 1502x RAMDAC -- \ Using IPF access method.\n", XCONFIG_PROBED ); } else { if( xf86Verbose ) ErrorF( "%s : Unable to access Sierra 1502x extended \ registers, assuming normal RAMDAC.\n", XCONFIG_PROBED ); xf86RamDacType = NORMAL_DAC; xf86MaxClock = 85000; xf86MaxClockDirect = 85000; xf86MaxCurs = 0; xf86RamDacHWSave = xf86RamDacHWNoop; xf86RamDacHWRestore = xf86RamDacHWNoop; xf86RamDacInit = xf86RamDacNoopInit; break; } } if ( xf86InSc1502xIndReg( SC1502X_ID3 ) == SC1502X_ID3_15021 ) { xf86RamDacType = SC15021_DAC; xf86MaxClock = 135000; xf86MaxClockDirect = 135000; } if (xf86Verbose) xf86Sc1502xPrintId(); break; case UNKNOWN_DAC: case NORMAL_DAC: default: xf86MaxCurs = 0; xf86RamDacHWSave = xf86RamDacHWNoop; xf86RamDacHWRestore = xf86RamDacHWNoop; xf86RamDacInit = xf86RamDacNoopInit; } } void #if __STDC__ xf86RamDacHWNoop( union xf86RamDacSave * save ) #else xf86RamDacHWNoop( save ) union xf86RamDacSave *save; #endif { } void xf86RamDacNoopInit( #if __STDC__ void #endif ) { }