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Diffstat (limited to 'src/atiwonder.c')
| -rw-r--r-- | src/atiwonder.c | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/src/atiwonder.c b/src/atiwonder.c deleted file mode 100644 index 404aeaf..0000000 --- a/src/atiwonder.c +++ /dev/null @@ -1,303 +0,0 @@ -/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/atiwonder.c,v 1.14 2003/01/01 19:16:35 tsi Exp $ */ -/* - * Copyright 1997 through 2003 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. - */ - -/* - * The ATI x8800 chips use special registers for their extended VGA features. - * These registers are accessible through an index I/O port and a data I/O - * port. BIOS initialisation stores the index port number in the Graphics - * register bank (0x03CE), indices 0x50 and 0x51. Unfortunately, for all but - * the 18800-x series of adapters, these registers are write-only (a.k.a. black - * holes). On all but 88800's, the index port number can be found in the short - * integer at offset 0x10 in the BIOS. For 88800's, this driver will use - * 0x01CE or 0x03CE as the index port number, depending on the I/O port - * decoding used. The data port number is one more than the index port number - * (i.e. 0x01CF). These ports differ slightly in their I/O behaviour from the - * normal VGA ones: - * - * write: outw(0x01CE, (data << 8) | index); (16-bit, not used) - * outb(0x01CE, index); outb(0x01CF, data); (8-bit) - * read: outb(0x01CE, index); data = inb(0x01CF); - * - * Two consecutive byte-writes to the data port will not work. Furthermore an - * index written to 0x01CE is usable only once. Note also that the setting of - * ATI extended registers (especially those with clock selection bits) should - * be bracketed by a sequencer reset. - * - * The number of these extended VGA registers varies by chipset. The 18800 - * series have 16, the 28800 series have 32, while 68800's and 88800's have 64. - * The last 16 on each have almost identical definitions. Thus, the BIOS sets - * up an indexing scheme whereby the last 16 extended VGA registers are - * accessed at indices 0xB0 through 0xBF on all chipsets. - */ - -#include "ati.h" -#include "atichip.h" -#include "atiwonder.h" -#include "atiwonderio.h" - -#ifndef AVOID_CPIO - -/* - * ATIVGAWonderPreInit -- - * - * This function is called to initialise the VGA Wonder part of an ATIHWRec - * that is common to all modes generated by the driver. - */ -void -ATIVGAWonderPreInit -( - ATIPtr pATI, - ATIHWPtr pATIHW -) -{ - pATIHW->b3 = ATIGetExtReg(0xB3U) & 0x20U; - if (pATI->depth <= 4) - pATIHW->b6 = 0x40U; - else - pATIHW->b6 = 0x04U; - if (pATI->Chip <= ATI_CHIP_18800) - pATIHW->ba = 0x08U; - else if (pATI->Chip >= ATI_CHIP_28800_2) - { - if (pATI->VideoRAM > 256) - pATIHW->b6 |= 0x01U; - pATIHW->bf = ATIGetExtReg(0xBFU) & 0x5FU; - pATIHW->a3 = ATIGetExtReg(0xA3U) & 0x67U; - pATIHW->ab = ATIGetExtReg(0xABU) & 0xE7U; - pATIHW->ae = ATIGetExtReg(0xAEU) & 0xE0U; - } -} - -/* - * ATIVGAWonderSave -- - * - * This function is called to save the VGA Wonder portion of the current video - * state. - */ -void -ATIVGAWonderSave -( - ATIPtr pATI, - ATIHWPtr pATIHW -) -{ - pATIHW->b0 = ATIGetExtReg(0xB0U); - pATIHW->b1 = ATIGetExtReg(0xB1U); - pATIHW->b2 = ATIGetExtReg(0xB2U); - pATIHW->b3 = ATIGetExtReg(0xB3U); - pATIHW->b5 = ATIGetExtReg(0xB5U); - pATIHW->b6 = ATIGetExtReg(0xB6U); - pATIHW->b8 = ATIGetExtReg(0xB8U); - pATIHW->b9 = ATIGetExtReg(0xB9U); - pATIHW->ba = ATIGetExtReg(0xBAU); - pATIHW->bd = ATIGetExtReg(0xBDU); - if (pATI->Chip > ATI_CHIP_18800) - { - pATIHW->be = ATIGetExtReg(0xBEU); - if (pATI->Chip >= ATI_CHIP_28800_2) - { - pATIHW->bf = ATIGetExtReg(0xBFU); - pATIHW->a3 = ATIGetExtReg(0xA3U); - pATIHW->a6 = ATIGetExtReg(0xA6U); - pATIHW->a7 = ATIGetExtReg(0xA7U); - pATIHW->ab = ATIGetExtReg(0xABU); - pATIHW->ac = ATIGetExtReg(0xACU); - pATIHW->ad = ATIGetExtReg(0xADU); - pATIHW->ae = ATIGetExtReg(0xAEU); - } - } -} - -/* - * ATIVGAWonderCalculate -- - * - * This function fills in the VGA Wonder portion of an ATIHWRec structure - * occurrence. - */ -void -ATIVGAWonderCalculate -( - ATIPtr pATI, - ATIHWPtr pATIHW, - DisplayModePtr pMode -) -{ - /* Set up the default horizontal display enable skew */ - if ((pATI->Chip >= ATI_CHIP_28800_2) && (pATI->Chip <= ATI_CHIP_28800_6) && - !(pMode->Flags & V_HSKEW)) - { - /* - * Modes using the higher clock frequencies need a non-zero Display - * Enable Skew. The following number has been empirically determined - * to be somewhere between 4.2 and 4.7 MHz. - */ -# define DisplayEnableSkewThreshold 4500 - - /* Set a reasonable default Display Enable Skew */ - pMode->HSkew = pMode->CrtcHSkew = - ATIDivide(pMode->SynthClock, DisplayEnableSkewThreshold, 0, 0); - } - pMode->Flags |= V_HSKEW; - - /* - * Fill in mode-specific VGA Wonder data. - */ - pATIHW->b0 = 0x00U; - if (pATI->depth >= 8) - pATIHW->b0 = 0x20U; - if (pATI->Chip >= ATI_CHIP_28800_2) - { - if (pATI->VideoRAM > 512) - pATIHW->b0 |= 0x08U; - else if (pATI->VideoRAM > 256) - pATIHW->b0 |= 0x10U; - } - else if (pATI->depth <= 4) - { - if (pATI->VideoRAM > 256) - pATIHW->b0 |= 0x08U; - } - else - { - if (pATI->VideoRAM > 256) - pATIHW->b0 |= 0x18U; - else - pATIHW->b0 |= 0x06U; - } - pATIHW->b1 = ATIGetExtReg(0xB1U) & 0x04U; - /* - * Setting the following bit causes hangs on return to text mode from - * packed modes on 18800-1's. The hang occurs because the adapter's I/O - * response is completely disabled when the register is rewritten. The - * adapter can then only be re-enabled with a powerdown. The bit, when on, - * blanks out the overscan. - */ - if ((pATI->Chip == ATI_CHIP_18800_1) && (pATI->depth >= 8)) - pATIHW->b5 = 0x00U; - else - pATIHW->b5 = 0x01U; - pATIHW->b8 = ATIGetExtReg(0xB8U) & 0xC0U; - pATIHW->b9 = ATIGetExtReg(0xB9U) & 0x7FU; - pATIHW->bd = ATIGetExtReg(0xBDU) & 0x02U; - if (pATI->Chip <= ATI_CHIP_18800) - pATIHW->b2 = ATIGetExtReg(0xB2U) & 0xC0U; - else - { - pATIHW->b2 = 0x00U; - pATIHW->be = (ATIGetExtReg(0xBEU) & 0x30U) | 0x09U; - if (pATI->Chip >= ATI_CHIP_28800_2) - { - pATIHW->a6 = (ATIGetExtReg(0xA6U) & 0x38U) | 0x04U; - pATIHW->a7 = (ATIGetExtReg(0xA7U) & 0xBEU) ; - pATIHW->ac = (ATIGetExtReg(0xACU) & 0x8EU) ; - } - } - if (pMode->Flags & V_INTERLACE) - { /* Enable interlace */ - if (pATI->Chip <= ATI_CHIP_18800) - pATIHW->b2 |= 0x01U; - else - pATIHW->be |= 0x02U; - } -#if 0 /* This is no longer needed but is left in for reference */ - if (pMode->Flags & V_DBLSCAN) /* Enable doublescan */ - pATIHW->b1 |= 0x08U; -#endif - if (pATI->OptionCSync || (pMode->Flags & (V_CSYNC | V_PCSYNC))) - pATIHW->bd |= 0x08U; /* Enable composite sync */ - if (pMode->Flags & V_NCSYNC) - pATIHW->bd |= 0x09U; /* Invert composite sync */ - if (pMode->HSkew > 0) - { - if (pMode->HSkew <= 3) - pATIHW->b5 |= 0x04U; - else if (pATI->Chip >= ATI_CHIP_28800_2) - switch ((pMode->HSkew + 4) >> 3) - { - case 1: /* Use ATI override */ - pATIHW->crt[3] &= ~0x60U; - pATIHW->b0 |= 0x01U; - break; - case 2: /* Use ATI override */ - pATIHW->crt[3] &= ~0x60U; - pATIHW->a6 |= 0x01U; - break; - case 3: - pATIHW->crt[3] |= 0x60U; - break; - case 4: - pATIHW->a7 |= 0x40U; - break; - case 5: - pATIHW->ac |= 0x10U; - break; - case 6: - pATIHW->ac |= 0x20U; - break; - default: - break; - } - } -} - -/* - * ATIVGAWonderSet -- - * - * This function loads the VGA Wonder portion of a video state. - */ -void -ATIVGAWonderSet -( - ATIPtr pATI, - ATIHWPtr pATIHW -) -{ - if (pATI->Chip <= ATI_CHIP_18800) - ATIModifyExtReg(pATI, 0xB2U, -1, 0x00U, pATIHW->b2); - else - { - ATIModifyExtReg(pATI, 0xBEU, -1, 0x00U, pATIHW->be); - if (pATI->Chip >= ATI_CHIP_28800_2) - { - ATIModifyExtReg(pATI, 0xBFU, -1, 0x00U, pATIHW->bf); - ATIModifyExtReg(pATI, 0xA3U, -1, 0x00U, pATIHW->a3); - ATIModifyExtReg(pATI, 0xA6U, -1, 0x00U, pATIHW->a6); - ATIModifyExtReg(pATI, 0xA7U, -1, 0x00U, pATIHW->a7); - ATIModifyExtReg(pATI, 0xABU, -1, 0x00U, pATIHW->ab); - ATIModifyExtReg(pATI, 0xACU, -1, 0x00U, pATIHW->ac); - ATIModifyExtReg(pATI, 0xADU, -1, 0x00U, pATIHW->ad); - ATIModifyExtReg(pATI, 0xAEU, -1, 0x00U, pATIHW->ae); - } - } - ATIModifyExtReg(pATI, 0xB0U, -1, 0x00U, pATIHW->b0); - ATIModifyExtReg(pATI, 0xB1U, -1, 0x00U, pATIHW->b1); - ATIModifyExtReg(pATI, 0xB3U, -1, 0x00U, pATIHW->b3); - ATIModifyExtReg(pATI, 0xB5U, -1, 0x00U, pATIHW->b5); - ATIModifyExtReg(pATI, 0xB6U, -1, 0x00U, pATIHW->b6); - ATIModifyExtReg(pATI, 0xB8U, -1, 0x00U, pATIHW->b8); - ATIModifyExtReg(pATI, 0xB9U, -1, 0x00U, pATIHW->b9); - ATIModifyExtReg(pATI, 0xBAU, -1, 0x00U, pATIHW->ba); - ATIModifyExtReg(pATI, 0xBDU, -1, 0x00U, pATIHW->bd); -} - -#endif /* AVOID_CPIO */ |