/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/atirgb514.c,v 1.4 2003/01/01 19:16:34 tsi Exp $ */ /* * Copyright 2001 through 2004 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org * * 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 Marc Aurele La France not be used in advertising or * publicity pertaining to distribution of the software without specific, * written prior permission. Marc Aurele La France makes no representations * about the suitability of this software for any purpose. It is provided * "as-is" without express or implied warranty. * * MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO * EVENT SHALL MARC AURELE LA FRANCE 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. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "ati.h" #include "aticrtc.h" #include "atimach64io.h" #include "atirgb514.h" /* * ATIRGB514PreInit -- * * This function fills in the IBM RGB 514 portion of an ATIHWRec that is common * to all video modes generated by the server. */ void ATIRGB514PreInit ( ATIPtr pATI, ATIHWPtr pATIHW ) { /* Get a work copy of IBM RGB 514 registers */ ATIRGB514Save(pATI, pATIHW); /* Miscellaneous Clock Control */ pATIHW->ibmrgb514[0x0002U] = 0x01U; /* Sync Control */ pATIHW->ibmrgb514[0x0003U] &= ~0x80U; /* Horizontal Sync Control */ pATIHW->ibmrgb514[0x0004U] = 0x00U; /* Power Management */ pATIHW->ibmrgb514[0x0005U] = 0x00U; /* DAC Operation */ pATIHW->ibmrgb514[0x0006U] &= ~0x04U; /* Palette Control */ pATIHW->ibmrgb514[0x0007U] = 0x00U; /* PLL Control */ pATIHW->ibmrgb514[0x0010U] = 0x01U; /* Cursor control */ pATIHW->ibmrgb514[0x0030U] &= ~0x03U; /* For now */ /* Border (i.e. overscan) */ pATIHW->ibmrgb514[0x0060U] = 0x00U; pATIHW->ibmrgb514[0x0061U] = 0x00U; pATIHW->ibmrgb514[0x0062U] = 0x00U; /* Miscellaneous Control */ pATIHW->ibmrgb514[0x0070U] &= ~0x20U; pATIHW->ibmrgb514[0x0071U] = 0x41U; /* See workaround in ATIRGB514Set() */ #ifndef AVOID_CPIO if (pATIHW->crtc == ATI_CRTC_VGA) { /* Pixel Format */ pATIHW->ibmrgb514[0x000AU] = 0x03U; /* Miscellaneous Control */ pATIHW->ibmrgb514[0x0070U] |= 0x40U; /* VRAM Mask */ pATIHW->ibmrgb514[0x0090U] = 0x03U; } else #endif /* AVOID_CPIO */ { /* Miscellaneous Control */ pATIHW->ibmrgb514[0x0070U] &= ~0x40U; /* VRAM Mask */ pATIHW->ibmrgb514[0x0090U] = 0x00U; pATIHW->ibmrgb514[0x0091U] = 0x00U; /* Pixel Format */ switch (pATI->depth) { case 8: pATIHW->ibmrgb514[0x000AU] = 0x03U; pATIHW->ibmrgb514[0x000BU] = 0x00U; break; case 15: pATIHW->ibmrgb514[0x000AU] = 0x04U; pATIHW->ibmrgb514[0x000CU] = 0xC4U; break; case 16: pATIHW->ibmrgb514[0x000AU] = 0x04U; pATIHW->ibmrgb514[0x000CU] = 0xC6U; break; case 24: if (pATI->bitsPerPixel == 24) { pATIHW->ibmrgb514[0x000AU] = 0x05U; pATIHW->ibmrgb514[0x000DU] = 0x01U; } else { pATIHW->ibmrgb514[0x000AU] = 0x06U; pATIHW->ibmrgb514[0x000EU] = 0x03U; } break; default: break; } } if (pATI->rgbBits == 8) pATIHW->ibmrgb514[0x0071U] |= 0x04U; } /* * ATIRGB514Save -- * * This function saves IBM RGB514 related data into an ATIHWRec. */ void ATIRGB514Save ( ATIPtr pATI, ATIHWPtr pATIHW ) { CARD32 crtc_gen_cntl, dac_cntl; CARD8 index_lo, index_hi, index_ctl; int Index; /* Temporarily switch to Mach64 CRTC */ crtc_gen_cntl = inr(CRTC_GEN_CNTL); if (!(crtc_gen_cntl & CRTC_EXT_DISP_EN)) outr(CRTC_GEN_CNTL, crtc_gen_cntl | CRTC_EXT_DISP_EN); /* Temporarily switch to IBM RGB 514 registers */ dac_cntl = inr(DAC_CNTL) & ~(DAC_EXT_SEL_RS2 | DAC_EXT_SEL_RS3); outr(DAC_CNTL, dac_cntl | DAC_EXT_SEL_RS2); index_lo = in8(M64_DAC_WRITE); index_hi = in8(M64_DAC_DATA); index_ctl = in8(M64_DAC_READ); out8(M64_DAC_WRITE, 0x00U); out8(M64_DAC_DATA, 0x00U); out8(M64_DAC_READ, 0x01U); /* Auto-increment */ /* Save IBM RGB 514 registers */ for (Index = 0; Index < NumberOf(pATIHW->ibmrgb514); Index++) { /* Need to rewrite the index every so often... */ if ((Index == 0x0100) || (Index == 0x0500)) { out8(M64_DAC_WRITE, 0); out8(M64_DAC_DATA, Index >> 8); } pATIHW->ibmrgb514[Index] = in8(M64_DAC_MASK); } /* Restore registers */ out8(M64_DAC_WRITE, index_lo); out8(M64_DAC_DATA, index_hi); out8(M64_DAC_READ, index_ctl); outr(DAC_CNTL, dac_cntl); if (!(crtc_gen_cntl & CRTC_EXT_DISP_EN)) outr(CRTC_GEN_CNTL, crtc_gen_cntl); } /* * ATIRGB514Calculate -- * * This function fills in the IBM RGB 514 portion of an ATIHWRec that is * specific to a display mode. pATIHW->ibmrgb514 has already been * initialised by a previous call to ATIRGB514PreInit(). */ void ATIRGB514Calculate ( ATIPtr pATI, ATIHWPtr pATIHW, DisplayModePtr pMode ) { if (pATI->OptionCSync || (pMode->Flags & (V_CSYNC | V_PCSYNC))) pATIHW->ibmrgb514[0x0006U] |= 0x08U; else pATIHW->ibmrgb514[0x0006U] &= ~0x08U; if (pMode->Flags & V_INTERLACE) pATIHW->ibmrgb514[0x0071U] |= 0x20U; else pATIHW->ibmrgb514[0x0071U] &= ~0x20U; } /* * ATIRGB514Set -- * * This function is called to set an IBM RGB514's registers. */ void ATIRGB514Set ( ATIPtr pATI, ATIHWPtr pATIHW ) { CARD32 crtc_gen_cntl, dac_cntl; CARD8 index_lo, index_hi, index_ctl; int Index; /* Temporarily switch to Mach64 CRTC */ crtc_gen_cntl = inr(CRTC_GEN_CNTL); if (!(crtc_gen_cntl & CRTC_EXT_DISP_EN)) outr(CRTC_GEN_CNTL, crtc_gen_cntl | CRTC_EXT_DISP_EN); /* Temporarily switch to IBM RGB 514 registers */ dac_cntl = inr(DAC_CNTL) & ~(DAC_EXT_SEL_RS2 | DAC_EXT_SEL_RS3); outr(DAC_CNTL, dac_cntl | DAC_EXT_SEL_RS2); index_lo = in8(M64_DAC_WRITE); index_hi = in8(M64_DAC_DATA); index_ctl = in8(M64_DAC_READ); out8(M64_DAC_WRITE, 0x00U); out8(M64_DAC_DATA, 0x00U); out8(M64_DAC_READ, 0x01U); /* Auto-increment */ /* Load IBM RGB 514 registers */ for (Index = 0; Index < NumberOf(pATIHW->ibmrgb514); Index++) out8(M64_DAC_MASK, pATIHW->ibmrgb514[Index]); #ifndef AVOID_CPIO /* Deal with documented anomaly */ if (pATIHW->crtc == ATI_CRTC_VGA) { /* Reset Miscellaneous Control 2 */ out8(M64_DAC_WRITE, 0x71U); out8(M64_DAC_DATA, 0x00U); out8(M64_DAC_MASK, pATIHW->ibmrgb514[0x0071U] & ~0x41U); } #endif /* AVOID_CPIO */ /* Restore registers */ out8(M64_DAC_WRITE, index_lo); out8(M64_DAC_DATA, index_hi); out8(M64_DAC_READ, index_ctl); outr(DAC_CNTL, dac_cntl); if (!(crtc_gen_cntl & CRTC_EXT_DISP_EN)) outr(CRTC_GEN_CNTL, crtc_gen_cntl); }