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Diffstat (limited to 'src/i810_cursor.c')
| -rw-r--r-- | src/i810_cursor.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/src/i810_cursor.c b/src/i810_cursor.c new file mode 100644 index 00000000..26023f3f --- /dev/null +++ b/src/i810_cursor.c @@ -0,0 +1,202 @@ + +/************************************************************************** + +Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. +All Rights Reserved. + +Permission is hereby granted, free of charge, to any person obtaining a +copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sub license, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice (including the +next paragraph) shall be included in all copies or substantial portions +of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. +IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR +ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +**************************************************************************/ +/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/i810/i810_cursor.c,v 1.7 2002/10/30 12:52:17 alanh Exp $ */ + +/* + * Reformatted with GNU indent (2.2.8), using the following options: + * + * -bad -bap -c41 -cd0 -ncdb -ci6 -cli0 -cp0 -ncs -d0 -di3 -i3 -ip3 -l78 + * -lp -npcs -psl -sob -ss -br -ce -sc -hnl + * + * This provides a good match with the original i810 code and preferred + * XFree86 formatting conventions. + * + * When editing this driver, please follow the existing formatting, and edit + * with <TAB> characters expanded at 8-column intervals. + */ + +/* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + * + */ + +#include "xf86.h" +#include "xf86_OSproc.h" +#include "xf86_ansic.h" +#include "compiler.h" + +#include "xf86fbman.h" + +#include "i810.h" + +static void I810LoadCursorImage(ScrnInfoPtr pScrn, unsigned char *src); +static void I810ShowCursor(ScrnInfoPtr pScrn); +static void I810HideCursor(ScrnInfoPtr pScrn); +static void I810SetCursorColors(ScrnInfoPtr pScrn, int bg, int fb); +static void I810SetCursorPosition(ScrnInfoPtr pScrn, int x, int y); +static Bool I810UseHWCursor(ScreenPtr pScrn, CursorPtr pCurs); + +Bool +I810CursorInit(ScreenPtr pScreen) +{ + ScrnInfoPtr pScrn; + I810Ptr pI810; + xf86CursorInfoPtr infoPtr; + + pScrn = xf86Screens[pScreen->myNum]; + pI810 = I810PTR(pScrn); + pI810->CursorInfoRec = infoPtr = xf86CreateCursorInfoRec(); + if (!infoPtr) + return FALSE; + + infoPtr->MaxWidth = 64; + infoPtr->MaxHeight = 64; + infoPtr->Flags = (HARDWARE_CURSOR_TRUECOLOR_AT_8BPP | + HARDWARE_CURSOR_BIT_ORDER_MSBFIRST | + HARDWARE_CURSOR_INVERT_MASK | + HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK | + HARDWARE_CURSOR_AND_SOURCE_WITH_MASK | + HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64 | 0); + + infoPtr->SetCursorColors = I810SetCursorColors; + infoPtr->SetCursorPosition = I810SetCursorPosition; + infoPtr->LoadCursorImage = I810LoadCursorImage; + infoPtr->HideCursor = I810HideCursor; + infoPtr->ShowCursor = I810ShowCursor; + infoPtr->UseHWCursor = I810UseHWCursor; + + return xf86InitCursor(pScreen, infoPtr); +} + +static Bool +I810UseHWCursor(ScreenPtr pScreen, CursorPtr pCurs) +{ + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + I810Ptr pI810 = I810PTR(pScrn); + + if (!pI810->CursorPhysical) + return FALSE; + else + return TRUE; +} + +static void +I810LoadCursorImage(ScrnInfoPtr pScrn, unsigned char *src) +{ + I810Ptr pI810 = I810PTR(pScrn); + CARD8 *pcurs = (CARD8 *) (pI810->FbBase + pI810->CursorStart); + int x, y; + + for (y = 0; y < 64; y++) { + for (x = 0; x < 64 / 4; x++) { + *pcurs++ = *src++; + } + } +} + +static void +I810SetCursorPosition(ScrnInfoPtr pScrn, int x, int y) +{ + I810Ptr pI810 = I810PTR(pScrn); + int flag; + + x += pI810->CursorOffset; + + if (x >= 0) + flag = CURSOR_X_POS; + else { + flag = CURSOR_X_NEG; + x = -x; + } + + OUTREG8(CURSOR_X_LO, x & 0xFF); + OUTREG8(CURSOR_X_HI, (((x >> 8) & 0x07) | flag)); + + if (y >= 0) + flag = CURSOR_Y_POS; + else { + flag = CURSOR_Y_NEG; + y = -y; + } + OUTREG8(CURSOR_Y_LO, y & 0xFF); + OUTREG8(CURSOR_Y_HI, (((y >> 8) & 0x07) | flag)); + + OUTREG(CURSOR_BASEADDR, pI810->CursorPhysical); +} + +static void +I810ShowCursor(ScrnInfoPtr pScrn) +{ + I810Ptr pI810 = I810PTR(pScrn); + unsigned char tmp; + + OUTREG(CURSOR_BASEADDR, pI810->CursorPhysical); + OUTREG8(CURSOR_CONTROL, CURSOR_ORIGIN_DISPLAY | CURSOR_MODE_64_3C); + + tmp = INREG8(PIXPIPE_CONFIG_0); + tmp |= HW_CURSOR_ENABLE; + OUTREG8(PIXPIPE_CONFIG_0, tmp); +} + +static void +I810HideCursor(ScrnInfoPtr pScrn) +{ + unsigned char tmp; + I810Ptr pI810 = I810PTR(pScrn); + + tmp = INREG8(PIXPIPE_CONFIG_0); + tmp &= ~HW_CURSOR_ENABLE; + OUTREG8(PIXPIPE_CONFIG_0, tmp); +} + +static void +I810SetCursorColors(ScrnInfoPtr pScrn, int bg, int fg) +{ + int tmp; + I810Ptr pI810 = I810PTR(pScrn); + + tmp = INREG8(PIXPIPE_CONFIG_0); + tmp |= EXTENDED_PALETTE; + OUTREG8(PIXPIPE_CONFIG_0, tmp); + + pI810->writeStandard(pI810, DACMASK, 0xFF); + pI810->writeStandard(pI810, DACWX, 0x04); + + pI810->writeStandard(pI810, DACDATA, (bg & 0x00FF0000) >> 16); + pI810->writeStandard(pI810, DACDATA, (bg & 0x0000FF00) >> 8); + pI810->writeStandard(pI810, DACDATA, (bg & 0x000000FF)); + + pI810->writeStandard(pI810, DACDATA, (fg & 0x00FF0000) >> 16); + pI810->writeStandard(pI810, DACDATA, (fg & 0x0000FF00) >> 8); + pI810->writeStandard(pI810, DACDATA, (fg & 0x000000FF)); + + tmp = INREG8(PIXPIPE_CONFIG_0); + tmp &= ~EXTENDED_PALETTE; + OUTREG8(PIXPIPE_CONFIG_0, tmp); +} |