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authorEric Anholt <anholt@freebsd.org>2004-07-22 06:58:15 +0000
committerEric Anholt <anholt@freebsd.org>2004-07-22 06:58:15 +0000
commitd78bd665b20eb68e74b9b4c2d04fa177cc4447c6 (patch)
tree4ab0eac8a0344d2cdcbe0e41d257238f0e1def94 /src/atiwonder.c
parentbea8085e04136b0ef513c17bb65c54069ec531e1 (diff)
DRI trunk-20040721 importDRI-trunk-20040721import-1.1.3
Diffstat (limited to 'src/atiwonder.c')
-rw-r--r--src/atiwonder.c303
1 files changed, 0 insertions, 303 deletions
diff --git a/src/atiwonder.c b/src/atiwonder.c
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@@ -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 */