Index: /trunk/src/VBox/Devices/Graphics/BIOS-new/BUGS =================================================================== --- /trunk/src/VBox/Devices/Graphics/BIOS-new/BUGS (revision 42353) +++ /trunk/src/VBox/Devices/Graphics/BIOS-new/BUGS (revision 42353) @@ -0,0 +1,3 @@ +Not all the functions have been implemented yet. + +Please report any bugs to Index: /trunk/src/VBox/Devices/Graphics/BIOS-new/COPYING =================================================================== --- /trunk/src/VBox/Devices/Graphics/BIOS-new/COPYING (revision 42353) +++ /trunk/src/VBox/Devices/Graphics/BIOS-new/COPYING (revision 42353) @@ -0,0 +1,513 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the + library `Frob' (a library for tweaking knobs) written by James Random Hacker. + + , 1 April 1990 + Ty Coon, President of Vice + +That's all there is to it! + + Index: /trunk/src/VBox/Devices/Graphics/BIOS-new/ChangeLog =================================================================== --- /trunk/src/VBox/Devices/Graphics/BIOS-new/ChangeLog (revision 42353) +++ /trunk/src/VBox/Devices/Graphics/BIOS-new/ChangeLog (revision 42353) @@ -0,0 +1,1212 @@ +2006-08-19 09:39 vruppert + + * vbe.c (1.58): + + - improved VGA compatible setup for VBE modes (disable CGA and Hercules + compatible memory layout) + +2006-08-18 20:39 vruppert + + * vbe.c (1.57): + + - improved VGA compatible setup for >=8bpp VBE modes (CRTC doubleword mode and + GRDC shift register setting added) + - now using symbolic name for CRTC address register + +2006-08-15 20:42 vruppert + + * vbe.c (1.56), vbetables-gen.c (1.4): + + - init 4bpp VBE modes by a temporary switch to VGA mode 0x6A + - all 4bpp VBE modes now enabled + +2006-08-14 20:24 vruppert + + * vbe.c (1.55): + + - VGA compatible setup for VBE modes improved (Bochs hack can be removed now) + +2006-08-12 07:51 vruppert + + * .cvsignore (1.1): + + - .cvsignore added for auto-generated file + +2006-08-12 07:47 vruppert + + * vbe.c (1.54), vbe.h (1.27), vbe_display_api.txt (1.13), vbetables-gen.c (1.3): + + - cleaned up VBE memory size definitions (removed duplicate defines, main + definition now in vbetables-gen.c) + +2006-08-09 21:28 vruppert + + * vbetables.h (1.30): + + - removed auto-generated file + +2006-08-09 21:26 vruppert + + * vbe.c (1.53), vbe.h (1.26), vbe_display_api.txt (1.12), vbetables-gen.c (1.2), + vbetables.h (1.29): + + - VBE video memory increased to 8 MB + - VBE dispi ID changed to B0C4 + - documentation update + +2006-07-11 08:03 vruppert + + * Makefile (1.18), vbetables-gen.c (1.1), vbetables.h (1.28): + + - generate vbetables.h dynamicly + * initial patch from the qemu project by Fabrice Bellard + * only add modes that fit in video memory (still 4 MB) + * several other fixes (e.g. 4 bpp specific stuff, number of pages) + +2006-07-10 07:47 vruppert + + * vgabios.c (1.66): + + - biosfn_scroll(): check variable 'i' for underflowing when scrolling downwards + to avoid screen corruption + +2006-07-10 07:47 vruppert + + * vbe.c (1.52): + + - VBE set bank functions failure handling added + - VBE get/set logical scan line length fixes for the 4bpp mode + +2006-07-08 13:27 vruppert + + * vbe.c (1.51), vbetables.h (1.27): + + - added special case for the 4 bpp when setting VBE display start + - VBE mode table fixes + +2006-07-07 13:30 vruppert + + * clext.c (1.12): + + - bank pointer must be set to 0 after a mode set + +2006-06-21 16:58 vruppert + + * vbe.c (1.50), vbetables.h (1.26): + + - improved VBE display capabilities check (X resulution checked now) + - removed obsolete defines (LFB always available, always generate dynamic list) + - CR/LF to LF fixes + +2006-06-18 15:22 vruppert + + * clext.c (1.11), vbe.c (1.49), vbe.h (1.25), vbetables.h (1.25), vgabios.c + (1.65): + + - applied patch from the qemu project (Fabrice Bellard) + * Cirrus SVGA now supports the "no clear" bit when switching to Cirrus or + VESA mode + * Bochs VBE protected mode interface improved + * save/restore video state support for Bochs VBE and standard VGA added + * Bochs VBE prepared for more modi + +2006-03-25 10:19 vruppert + + * clext.c (1.10), vgabios.c (1.64), vgatables.h (1.10): + + - applied patch from Fabrice Bellard + * added minimal support for the video parameter table (VPT) + * added Cirrus SVGA mode 0x7b (1600x1200x8) + +2005-12-26 19:50 vruppert + + * vbe.c (1.48), vgabios.c (1.63): + + - Bochs VBE protected mode interface added (based on a patch by malc@pulsesoft.com) + +2005-12-26 19:50 vruppert + + * biossums.c (1.3): + + - biossums utility now supports VGABIOS sizes up to 64 kBytes + +2005-09-21 18:45 vruppert + + * vgatables.h (1.9): + + - mode 0x11: all color planes must be enabled in this 2-color VGA mode + +2005-08-30 18:41 vruppert + + * biossums.c (1.2): + + - missing license text added in biossums.c + +2005-07-02 18:39 vruppert + + * vgabios.c (1.62): + + - BIOS configuration word usually reports initial mode 80x25 color text + - vgabios function 0x0e (write teletype): linefeed (0x0a) only increments the + cursor row value + +2005-05-24 16:50 vruppert + + * vbe.c (1.47), vgabios.c (1.61): + + - output to the vgabios info port can be disabled now. It is still enabled by + default and always possible in debug mode. (based on a patch from Alex Beregszaszi) + +2005-05-20 16:06 vruppert + + * vbe.c (1.46), vgabios.c (1.60): + + - fixed return value for the default case in the VBE section (non-debug mode) + - removed unused macros HALT and PANIC_PORT + +2005-03-07 20:39 vruppert + + * README (1.9): + + - updates for 0.5a release + +2005-03-06 13:06 vruppert + + * Makefile (1.17): + + - vgabios files with cirrus support added to release target + +2005-03-06 12:24 vruppert + + * Makefile (1.16): + + - cross compilation support added (patch from Alex Beregszaszi) + +2005-03-05 13:03 vruppert + + * BUGS (1.3), README (1.8), TODO (1.11): + + - documentation updates + +2004-12-04 15:26 vruppert + + * VGABIOS-lgpl-latest.bin (1.61), VGABIOS-lgpl-latest.cirrus.bin + (1.13), VGABIOS-lgpl-latest.cirrus.debug.bin (1.13), + VGABIOS-lgpl-latest.debug.bin (1.61), clext.c (1.9): + + - Cirrus extension: support for 1280x1024x15 and 1280x1024x16 modes added (patch + from Fabrice Bellard) + +2004-08-08 16:53 vruppert + + * VGABIOS-lgpl-latest.bin (1.60), VGABIOS-lgpl-latest.cirrus.bin (1.12), + VGABIOS-lgpl-latest.cirrus.debug.bin (1.12), + VGABIOS-lgpl-latest.debug.bin (1.60), clext.c (1.8): + + - use single bank mode for VBE + - enable 16k granularity for VBE only + +2004-07-30 19:33 vruppert + + * VGABIOS-lgpl-latest.bin (1.59), VGABIOS-lgpl-latest.cirrus.bin (1.11), + VGABIOS-lgpl-latest.cirrus.debug.bin (1.11), + VGABIOS-lgpl-latest.debug.bin (1.59), clext.c (1.7): + + - cirrus init: set standard vga mode and reset bitblt + +2004-07-22 18:38 vruppert + + * VGABIOS-lgpl-latest.bin (1.58), VGABIOS-lgpl-latest.cirrus.bin (1.10), + VGABIOS-lgpl-latest.cirrus.debug.bin (1.10), + VGABIOS-lgpl-latest.debug.bin (1.58), clext.c (1.6), vbe.c (1.45), + vbetables.h (1.24): + + - cirrus extension: tables for mode 1280x1024x8 added + - vbe: dispi_set_xres() and dispi_set_virt_width() now modify vga compatible + registers + - vbe: mode list entry for mode 800x600x4 fixed + +2004-07-18 20:23 vruppert + + * VGABIOS-lgpl-latest.bin (1.57), VGABIOS-lgpl-latest.cirrus.bin (1.9), + VGABIOS-lgpl-latest.cirrus.debug.bin (1.9), + VGABIOS-lgpl-latest.debug.bin (1.57), vgabios.c (1.59), vgatables.h (1.8): + + - disable CRTC write protection before setting new values + - CRTC line for mode 0x6a fixed + +2004-07-07 16:08 vruppert + + * Makefile (1.15), VGABIOS-lgpl-latest.bin (1.56), + VGABIOS-lgpl-latest.cirrus.bin (1.8), VGABIOS-lgpl-latest.cirrus.debug.bin (1.8), + VGABIOS-lgpl-latest.debug.bin (1.56), biossums.c (1.1), clext.c (1.5): + + - biossums utility for the Bochs BIOS adapted for the LGPL'd VGABIOS + - VESA3 PMINFO checksum calculated in the source + - 24 bpp mode entries fixed (patch from Fabrice Bellard) + +2004-06-25 18:28 vruppert + + * VGABIOS-lgpl-latest.cirrus.bin (1.7), VGABIOS-lgpl-latest.cirrus.debug.bin (1.7), + clext.c (1.4): + + - 4MB memory probe added (patch from Fabrice Bellard) + +2004-06-25 17:31 vruppert + + * VGABIOS-lgpl-latest.bin (1.55), VGABIOS-lgpl-latest.cirrus.bin (1.6), + VGABIOS-lgpl-latest.cirrus.debug.bin (1.6), + VGABIOS-lgpl-latest.debug.bin (1.55), clext.c (1.3): + + - fixed value of sequencer reset register in cirrus mode table + - fixed possible overflow error if cirrus start address is >256k + +2004-06-23 21:11 vruppert + + * VGABIOS-lgpl-latest.bin (1.54), VGABIOS-lgpl-latest.cirrus.bin (1.5), + VGABIOS-lgpl-latest.cirrus.debug.bin (1.5), + VGABIOS-lgpl-latest.debug.bin (1.54), clext.c (1.2): + + - applied new patch for the cirrus extension from suzu + * enable VESA LFB support if a Cirrus PCI adapter is detected + * prepared VBE3 protected mode info block (test case required) + - added VBE functions 4F06h and 4F07h + - some bugfixes + +2004-06-17 18:57 vruppert + + * Makefile (1.14), VGABIOS-lgpl-latest.bin (1.53), + VGABIOS-lgpl-latest.cirrus.bin (1.2), VGABIOS-lgpl-latest.cirrus.debug.bin (1.2), + VGABIOS-lgpl-latest.debug.bin (1.53): + + - fixed makefile targets for the binaries with cirrus extension + +2004-06-16 21:11 vruppert + + * Makefile (1.13), VGABIOS-lgpl-latest.bin (1.52), + VGABIOS-lgpl-latest.cirrus.bin (1.1), VGABIOS-lgpl-latest.cirrus.debug.bin (1.1), + VGABIOS-lgpl-latest.debug.bin (1.52), clext.c (1.1), vgabios.c (1.58): + + - applied suzu's cirrus extension patch. Cirrus SVGA detection, most of the + cirrus-specific modes and some basic VBE features are present now. + +2004-05-31 21:15 vruppert + + * VGABIOS-lgpl-latest.bin (1.51), VGABIOS-lgpl-latest.debug.bin (1.51), + vgabios.c (1.57): + + - write character in planar graphics modes: sequencer map mask must be 0x0f and + bit operation must be 'replace' if bit 7 of attribute is clear + - read/write pixel in planar graphics modes: bit mask setup simplified + +2004-05-11 18:08 vruppert + + * VGABIOS-lgpl-latest.bin (1.50), VGABIOS-lgpl-latest.debug.bin (1.50), + vgabios.c (1.56): + + - biosfn_select_vert_res rewritten in assembler + - scroll text in planar graphics modes: attribute for blank line fixed + - write character in planar graphics modes: graphics controller values fixed + +2004-05-09 20:32 vruppert + + * VGABIOS-lgpl-latest.bin (1.49), VGABIOS-lgpl-latest.debug.bin (1.49), + vbe.c (1.44), vbe.h (1.24), vgabios.c (1.55): + + - VBE init code and some dispi ioport functions rewritten in assembler + - text scroll functions for CGA graphics modes added + - scroll text in graphics modes: attribute for blank line fixed + +2004-05-08 16:06 vruppert + + * BUGS (1.2), README (1.7), TODO (1.10), VGABIOS-lgpl-latest.bin (1.48), + VGABIOS-lgpl-latest.debug.bin (1.48), vbe.c (1.43), vbe.h (1.23), + vbe_display_api.txt (1.11), vgabios.c (1.54): + + - VBE internal functions dispi_set_enable and dispi_set_bank now called both from C + and asm code + - VBE function 0x03 rewritten in assembler + - VBE function 0x08 cleaned up + - text output and scroll functions for graphics modes rewritten using case + structures + - documentation and comments updated + +2004-05-06 21:18 vruppert + + * VGABIOS-lgpl-latest.bin (1.47), VGABIOS-lgpl-latest.debug.bin (1.47), + vbe.c (1.42), vbe.h (1.22), vgabios.c (1.53): + + - VBE functions 0x05, 0x06, 0x07 and some dispi ioport functions rewritten in + assembler + - VBE functions 0x06 and 0x07: get functions now supported, 15 bpp bug fixed + +2004-05-05 19:24 vruppert + + * VGABIOS-lgpl-latest.bin (1.46), VGABIOS-lgpl-latest.debug.bin (1.46), + vbe.c (1.41), vbe.h (1.21), vbe_display_api.txt (1.10), vgabios.c (1.52): + + - 8 bit DAC capability flag set + - vbe_biosfn_set_get_dac_palette_format implemented + - VBE api description updated + - C definitions from header files now used assembler code + +2004-05-02 17:27 vruppert + + * VGABIOS-lgpl-latest.bin (1.45), VGABIOS-lgpl-latest.debug.bin (1.45), + vgabios.c (1.51): + + - text scroll functions for PLANAR1/PLANAR4 graphics modes added + - function biosfn_get_ega_info rewritten in assembler + - read/write graphics pixel functions rewritten using a case structure + +2004-05-01 16:03 vruppert + + * VGABIOS-lgpl-latest.bin (1.44), VGABIOS-lgpl-latest.debug.bin (1.44), + vgabios.c (1.50): + + - biosfn_enable_cursor_emulation rewritten in assembler + - remap of the cursor shape depends on modeset control bit 0 + - text output in PLANAR4 modes now supports attribute bit 7 (XOR with background) + +2004-04-25 20:13 vruppert + + * VGABIOS-lgpl-latest.bin (1.43), VGABIOS-lgpl-latest.debug.bin (1.43), + vgabios.c (1.49), vgatables.h (1.7): + + - table entries for vga mode 0x0f fixed (PLANAR2 exists on EGA only) + - function release_font_access now supports the monochrome text mode + - PLANAR1 modes now supported in text output functions and read/write pixel + - function AH=0x12/BL=0x32 rewritten in assembler + +2004-04-25 08:45 vruppert + + * VGABIOS-lgpl-latest.bin (1.42), VGABIOS-lgpl-latest.debug.bin (1.42), + vgabios.c (1.48): + + - block address calculation in font functions fixed + - functions AX=0x1103, AH=0x12/BL=0x31 and AH=0x12/BL=0x33 rewritten in assembler + +2004-04-24 09:59 vruppert + + * VGABIOS-lgpl-latest.bin (1.41), VGABIOS-lgpl-latest.debug.bin (1.41), + vgabios.c (1.47): + + - read/write graphics pixel for PLANAR4 modes added + - CGA specific functions (group AH = 0x0B) implemented + +2004-04-23 14:34 vruppert + + * VGABIOS-lgpl-latest.bin (1.40), VGABIOS-lgpl-latest.debug.bin (1.40), + vgabios.c (1.46): + + - remaining palette and dac read/write functions (except gray scale summing) + rewritten in assembler + +2004-04-18 13:43 vruppert + + * VGABIOS-lgpl-latest.bin (1.39), VGABIOS-lgpl-latest.debug.bin (1.39), + vgabios.c (1.45): + + - some palette and dac read/write functions rewritten in assembler + - main int10 debug message now works with assembler functions, too + +2004-04-18 09:15 japj + + * vbe.c (1.40): + + updated my email address + put vgabios url in the bios copyright string + (instead of my old email address) + +2004-04-17 07:18 vruppert + + * VGABIOS-lgpl-latest.bin (1.38), VGABIOS-lgpl-latest.debug.bin (1.38), + vgabios.c (1.44): + + - biosfn_set_video_mode: don't load DAC registers if default palette loading is + disabled. Perform gray scale summing if enabled. + - biosfn_perform_gray_scale_summing: switch between DAC read and write mode is + required to make this function work. Maximum DAC value always set to 0x3f. + +2004-04-08 17:50 vruppert + + * VGABIOS-lgpl-latest.bin (1.37), VGABIOS-lgpl-latest.debug.bin (1.37), + vgabios.c (1.43): + + - write character function for the LINEAR8 mode + - get_font_access() and release_font_access() rewritten in assembler + - fixed wrong variable name in the init code + +2004-04-06 19:31 vruppert + + * VGABIOS-lgpl-latest.bin (1.36), VGABIOS-lgpl-latest.debug.bin (1.36), + vgabios.c (1.42): + + - init functions rewitten in assembler + - function biosfn_set_display_code rewritten in assembler + +2004-04-05 19:40 vruppert + + * VGABIOS-lgpl-latest.bin (1.35), VGABIOS-lgpl-latest.debug.bin (1.35), + vgabios.c (1.41): + + - functions biosfn_get_video_mode() and biosfn_read_display_code() rewritten + in assembler + +2004-04-04 18:20 vruppert + + * VGABIOS-lgpl-latest.bin (1.34), VGABIOS-lgpl-latest.debug.bin (1.34), + vgabios.c (1.40): + + - write character function for CGA modes added + - read/write graphics pixel for CGA and LINEAR8 modes added + +2004-02-23 21:08 vruppert + + * VGABIOS-lgpl-latest.bin (1.33), VGABIOS-lgpl-latest.debug.bin (1.33), + vbe.c (1.39): + + - dispi_get_max_bpp(): restore the original value of the vbe enable register + +2004-02-22 14:17 vruppert + + * README (1.6), vbe.c (1.38), vbe.h (1.20), vbe_display_api.txt (1.9), + VGABIOS-lgpl-latest.bin (1.32), VGABIOS-lgpl-latest.debug.bin (1.32): + + - new function dispi_get_max_bpp() returns the bpp capabilities of the Bochs gui + - create the mode list depending on the supported bpp capability + - unused stuff removed + - documentation updated + +2004-02-21 18:20 vruppert + + * vbe.c (1.37), vbe.h (1.19), vbetables.h (1.23), + VGABIOS-lgpl-latest.bin (1.31), VGABIOS-lgpl-latest.debug.bin (1.31): + + - dynamicly genarated vbe mode_info list works now + +2003-11-17 21:04 vruppert + + * vbe.c (1.36), vbetables.h (1.22), vgabios.c (1.39), vgatables.h (1.6), + VGABIOS-lgpl-latest.bin (1.30), VGABIOS-lgpl-latest.debug.bin (1.30): + + - new VBE presence flag stored at unused BDA address 0xB9 + - VBE init code rewritten + - added BIOS TTY flag for VBE mode 0x0102 (TODO: scrolling) + - vgabios_init_func: load and activate text font already done by set_video_mode + - function biosfn_get_all_palette_reg() fixed + +2003-11-06 00:26 cbothamy + + * README (1.5): + + - add changes for 0.4c release + +2003-11-06 00:22 cbothamy + + * VGABIOS-lgpl-latest.bin (1.29), VGABIOS-lgpl-latest.debug.bin + (1.29): + + - compile vgabios.c rev1.38 + +2003-11-06 00:21 cbothamy + + * vgabios.c (1.38): + + - activate char table after loading it when setting a text video + mode + +2003-11-06 00:19 cbothamy + + * Makefile (1.12): + + - when making a release, remove unwanted files first, and exclude + CVS from the tarball + +2003-11-04 22:50 cbothamy + + * ChangeLog (1.20, v0_4b): + + - update ChangeLog for 0.4b release + +2003-11-04 22:49 cbothamy + + * README (1.4, v0_4b): + + - update Changes for 0.4b release + +2003-11-04 20:26 vruppert + + * vgabios.c (1.37), VGABIOS-lgpl-latest.bin (1.28), + VGABIOS-lgpl-latest.debug.bin (1.28) (utags: v0_4b): + + - biosfn_get_font_info(): character height must be returned in CX + +2003-11-03 21:57 vruppert + + * vbe.c (1.35, v0_4b), vgabios.c (1.36), VGABIOS-lgpl-latest.bin + (1.27), VGABIOS-lgpl-latest.debug.bin (1.27): + + - the 'noclearmem' flag is not stored in the 'current video mode' + register (0040h:0049h) - VBE also stores the 'noclear' flag in + the 'video control' register (0040h:0087h) + +2003-10-05 10:06 vruppert + + * vbe.h (1.18, v0_4b), vbe_display_api.txt (1.8, v0_4b), + VGABIOS-lgpl-latest.bin (1.26), VGABIOS-lgpl-latest.debug.bin + (1.26): + + - changed VBE i/o registers to 0x01CE/CF (suggestion from Daniel + Gimpelevich) + +2003-08-18 18:38 vruppert + + * VGABIOS-lgpl-latest.bin (1.25), VGABIOS-lgpl-latest.debug.bin + (1.25), vgabios.c (1.35): + + - wrong offsets to the character tables (INT 0x1F/0x43) fixed + (underscore added) - functions accessing the CRT controller + optimized using a local variable 'crtc_addr' + +2003-08-17 15:46 cbothamy + + * ChangeLog (1.19, v0_4a): + + - ChangeLog is now automatically generated by running "cvs2cl -r + -t -P -S" - update ChangeLog for 0.4a release + +2003-08-17 15:44 cbothamy + + * README (1.3, v0_4a): + + - added the old ChangeLog in the HOSTORY section of the README + file - update History for 0.4a release, with a summary of Changes + +2003-08-17 15:24 cbothamy + + * Makefile (1.11, v0_4b, v0_4a): + + - fix Makefile for "release" target + +2003-08-16 01:49 cbothamy + + * Makefile (1.10), README (1.2), VGABIOS-lgpl-latest.bin (1.24, + v0_4a), VGABIOS-lgpl-latest.debug.bin (1.24, v0_4a), vgabios.c + (1.34, v0_4a): + + - update the Makefile for releases - remove references to old + plex86 website - update the Makefile so it build + VGABIOS-lgpl-latest.bin and VGABIOS-lgpl-latest.debug.bin + +2003-08-07 18:17 vruppert + + * VGABIOS-lgpl-latest.bin (1.23), VGABIOS-lgpl-latest.debug.bin + (1.23): + + - current VBE mode now stored in BDA (unused address 0xBA) + +2003-08-07 17:54 vruppert + + * vbe.c (1.34), vgatables.h (1.5, v0_4b) (utags: v0_4a): + + - current VBE mode now stored in BDA (unused address 0xBA) + +2003-07-20 18:05 vruppert + + * vgabios.c (1.33), VGABIOS-lgpl-latest.bin (1.22), + VGABIOS-lgpl-latest.debug.bin (1.22): + + - fixed a few functions accessing the attribute controller + +2003-07-19 09:33 vruppert + + * vgabios.c (1.32), VGABIOS-lgpl-latest.bin (1.21), + VGABIOS-lgpl-latest.debug.bin (1.21): + + - re-enable video after programming the attribute controller - + biosfn_set_all_palette_reg(): number of palette registers fixed + +2003-07-16 22:32 vruppert + + * ChangeLog (1.18), vbe.c (1.33), vbe.h (1.17, v0_4a), + vbe_display_api.txt (1.7, v0_4a), vgabios.c (1.31), + VGABIOS-lgpl-latest.bin (1.20), VGABIOS-lgpl-latest.debug.bin + (1.20): + + - LFB flag now stored in the register VBE_DISPI_INDEX_ENABLE - + release date in Changelog fixed - release date of VBE BIOS 0.6 + was the same as VGA BIOS 0.3b - year changed in copyright + messages + +2003-07-15 12:40 vruppert + + * VGABIOS-lgpl-latest.bin (1.19), VGABIOS-lgpl-latest.debug.bin + (1.19): + + - new function dispi_get_bpp() - function + vbe_biosfn_set_get_logical_scan_line_length() fixed for >8bpp - + number of image pages of all VBE modes fixed + +2003-07-15 12:35 vruppert + + * vbe.c (1.32), vbetables.h (1.21, v0_4b, v0_4a): + + - new function dispi_get_bpp() - function + vbe_biosfn_set_get_logical_scan_line_length() fixed for >8bpp - + number of image pages of all VBE modes fixed + +2003-07-14 19:45 vruppert + + * vbe_display_api.txt (1.6): + + - description of VBE_DISPI_ interface 0xb0c2 added + +2003-07-10 19:07 vruppert + + * vbe.c (1.31), vbetables.h (1.20), VGABIOS-lgpl-latest.bin (1.18), + VGABIOS-lgpl-latest.debug.bin (1.18): + + - 15 bpp VBE modes added - "Bochs own" mode 0x142 (640x480x32bpp) + added + +2003-07-01 19:00 vruppert + + * vbe.c (1.30), vbe.h (1.16), vbetables.h (1.19), + VGABIOS-lgpl-latest.bin (1.17), VGABIOS-lgpl-latest.debug.bin + (1.17): + + - VBE preserve display memory feature implemented - VBE mode + entries 0x117 and 0x118 added + +2003-06-30 21:27 vruppert + + * vbe.c (1.29), vbe.h (1.15), vbetables.h (1.18), + VGABIOS-lgpl-latest.bin (1.16), VGABIOS-lgpl-latest.debug.bin + (1.16): + + - VBE mode info blocks of modes with >8bpp enabled - VBE modes + with 24 bpp: bytes per scanline fixed - vbe_biosfn_set_mode() now + supports >8bpp - VBE will be enabled with new VBE_DISPI_ID2 + (0xB0C2) + +2003-06-29 12:53 vruppert + + * vbetables.h (1.17), VGABIOS-lgpl-latest.bin (1.15), + VGABIOS-lgpl-latest.debug.bin (1.15): + + - duplicate lines with VBE_MODE_ATTRIBUTE_GRAPHICS_MODE removed - + VBE mode info items of currently unsupported modes fixed + +2003-06-15 21:19 vruppert + + * vgabios.c (1.30), VGABIOS-lgpl-latest.bin (1.14), + VGABIOS-lgpl-latest.debug.bin (1.14): + + - function write_gfx_char() rewritten + +2003-04-26 09:27 vruppert + + * VGABIOS-lgpl-latest.debug.bin (1.13): + + - added missing VBE function dispi_get_bank() - added missing + return codes for VBE function 4F05h - memory size is always + reported in VBE function 4F00h - fixed scan line length for VBE + mode 0102h - fixed function set_active_page() for graphics modes + - fixed the page sizes of some VGA modes + +2003-04-26 09:22 vruppert + + * vbe.c (1.28), vbetables.h (1.16), vgabios.c (1.29), vgatables.h + (1.4), VGABIOS-lgpl-latest.bin (1.13): + + - added missing VBE function dispi_get_bank() - added missing + return codes for VBE function 4F05h - memory size is always + reported in VBE function 4F00h - fixed scan line length for VBE + mode 0102h - fixed function set_active_page() for graphics modes + - fixed the page sizes of some VGA modes + +2003-04-20 09:51 vruppert + + * vgabios.c (1.28), vgatables.h (1.3), VGABIOS-lgpl-latest.bin + (1.12), VGABIOS-lgpl-latest.debug.bin (1.12): + + - function write_gfx_char() now supports different font sizes - + some entries of the static functionality table fixed + +2003-04-18 09:23 vruppert + + * vbe.c (1.27), vbe.h (1.14), vbetables.h (1.15): + + - applied patch #1331 * new function dispi_set_bank_farcall() + * VBE mode info item WinFuncPtr points to the new function if the + flag VBE_WINDOW_ATTRIBUTE_RELOCATABLE is set * flag + VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE added + +2003-02-11 20:17 vruppert + + * VGABIOS-lgpl-latest.bin (1.11), VGABIOS-lgpl-latest.debug.bin + (1.11), vbe.c (1.26), vbetables.h (1.14): + + - VBE mode search rewritten * improved function + mode_info_find_mode() is now used by the VBE functions 0x4F01 + and 0x4F02 * removed all mode list entries with the LFB bit + set. LFB detection is now present in the function + mode_info_find_mode() + +2003-02-09 20:59 vruppert + + * VGABIOS-lgpl-latest.bin (1.10), VGABIOS-lgpl-latest.debug.bin + (1.10), vgabios.c (1.27): + + - function write_gfx_char(): memory address now calculated in + this function; background color is always black - function + biosfn_write_char_attr(): the count parameter is now used in + graphics modes too - function biosfn_write_char_only() works + the same way as function biosfn_write_char_attr() in graphics + mode - copying charmap data optimized using memcpyb() + +2003-02-09 11:36 vruppert + + * VGABIOS-lgpl-latest.bin (1.9), VGABIOS-lgpl-latest.debug.bin + (1.9): + + - VESA mode 0x102 added (uses existing SVGA mode 0x6a) - all VESA + modes with the LFB flag set removed from the list (Linux doesn't + like mode numbers > 0x07ff) + +2003-02-09 11:02 vruppert + + * vbe.c (1.25), vbe.h (1.13), vbetables.h (1.13): + + - VESA mode 0x102 added (uses existing SVGA mode 0x6a) - all VESA + modes with the LFB flag set removed from the list (Linux doesn't + like mode numbers > 0x07ff) + +2003-02-08 13:04 vruppert + + * vbe.c (1.24), vgabios.c (1.26): + + - vbe_biosfn_return_current_mode() now returns the active + standard VGA mode TODO: return VESA mode if enabled - + biosfn_set_video_mode() now clears the screen in CGA mode + correctly - write character functions are now working in all + PLANAR4 graphics modes - added stubs for unimplemented features + in graphics modes + +2003-02-04 22:19 vruppert + + * VGABIOS-lgpl-latest.bin (1.8), VGABIOS-lgpl-latest.debug.bin + (1.8): + + - set video mode: clear vga memory in graphics mode - set video + mode: load default font in text mode - write character + implemented for graphics mode 0x12 + +2003-02-04 22:06 vruppert + + * vgabios.c (1.25): + + - set video mode: clear vga memory in graphics mode - set video + mode: load default font in text mode - write character + implemented for graphics mode 0x12 + +2003-01-21 19:30 vruppert + + * vgabios.c (1.24): + + - remap the cursor size if the char height is > 8 and the new + values are < 8 + +2003-01-20 18:24 cbothamy + + * Makefile (1.9): + + - fix so make -j2 does not overwrite temp files + +2003-01-19 12:35 vruppert + + * vgabios.c (1.23): + + - function set_scan_lines() recalculates the number of rows and + the page size - new values for char height, text rows and page + size are stored in the BIOS data segment - asm helper function + idiv_u added + +2003-01-15 18:49 cbothamy + + * VGABIOS-lgpl-latest.bin (1.7), VGABIOS-lgpl-latest.debug.bin + (1.7): + + - compile vgabios rev 1.22 + +2003-01-15 18:49 cbothamy + + * vgabios.c (1.22): + + - fix bug found by ams : a 8bits index value was compared to + 0x100 in some cases in biosfn_set_all_dac_reg, + biosfn_read_all_dac_reg, biosfn_perform_gray_scale_summing + +2003-01-15 17:34 cbothamy + + * Makefile (1.8): + + - fix symbol table file names, discovered by ams + +2003-01-04 21:20 vruppert + + * VGABIOS-lgpl-latest.bin (1.6), VGABIOS-lgpl-latest.debug.bin + (1.6), vgabios.c (1.21): + + - biosfn_set_video_mode(): reset attribute controller flip-flop + before setting up the controller's registers (bug found with + amidiag) + +2003-01-04 09:50 vruppert + + * vbe.c (1.23): + + - VBE function 0x00 returns VBE 1.x compatible information if no + VBE signature is present + +2003-01-01 12:44 vruppert + + * VGABIOS-lgpl-latest.bin (1.5), VGABIOS-lgpl-latest.debug.bin + (1.5): + + - SVGA mode 0x6A (800x600x4) added to the list of graphics modes + +2002-12-31 18:07 vruppert + + * vgatables.h (1.2): + + - SVGA mode 0x6A (800x600x4) added to the list of graphics modes + +2002-11-23 10:38 cbothamy + + * ChangeLog (1.17, v0_3b): + + - fix changelog for 0.3b release + +2002-10-20 17:12 vruppert + + * VGABIOS-lgpl-latest.bin (1.4), VGABIOS-lgpl-latest.debug.bin + (1.4), vgabios.c (1.20) (utags: v0_3b): + + - new function set_scan_lines() for the font size change (patch + from Hartmut Birr) - cursor shape start and end must be updated + in set_scan_lines() - set_scan_lines() is called by the functions + 0x1110, 0x1111, 0x1112 and 0x1114 after copying the font data + +2002-10-04 08:20 vruppert + + * VGABIOS-lgpl-latest.bin (1.3), VGABIOS-lgpl-latest.debug.bin + (1.3), vgabios.c (1.19): + + - biosfn_set_single_dac_reg(): the red value is stored in DH + +2002-09-19 19:05 cbothamy + + * VGABIOS-lgpl-latest.bin (1.2), VGABIOS-lgpl-latest.debug.bin + (1.2): + + - updated with latest changes + +2002-09-19 19:03 cbothamy + + * ChangeLog (1.16), Makefile (1.7, v0_3b), vbe.c (1.22, v0_3b), + vgabios.c (1.18), vgabios.h (1.3, v0_4b, v0_4a, v0_3b): + + - updated the Makefile - removed display of copyrights. - + changed the Copyright string to "LGPL VGABios developers" + +2002-09-08 21:14 vruppert + + * vgabios.c (1.17): + + - set the cursor shape depending on the current font height - + clear BL before calling int 0x10 function 0x1103 in + vgabios_init_func + +2002-08-23 22:58 cbothamy + + * vbe.c (1.21), vbetables.h (1.12, v0_3b): + + - added lfb-mode numbers (patch from mathis) + +2002-07-21 21:57 japj + + * vbe.c (1.20), vgabios.c (1.16): + + gcc2/3 preprocessing fix + +2002-05-18 16:55 cbothamy + + * vgabios.c (1.15): + + - include patch from Volker that adds some text font functions + +2002-05-01 23:13 japj + + * VGABIOS-lgpl-latest.bin (1.1), VGABIOS-lgpl-latest.debug.bin + (1.1): + + adding latest bin & debug bin of the vgabios + +2002-04-29 14:50 japj + + * ChangeLog (1.15), vbe.c (1.19), vbe.h (1.12, v0_3b), vbetables.h + (1.11), vgabios.c (1.14): + + - applying hw scrolling/multibuffering patch + +2002-04-25 21:59 japj + + * Makefile (1.6), vbe.c (1.18), vgabios.c (1.13): + + - reverting #asm/##asm & endasm patch (does not work with with + cygwin) + +2002-04-19 19:38 japj + + * Makefile (1.5), vbe.c (1.17), vgabios.c (1.12): + + - fixing preprocessing of vgabios with latest gcc (from Mandrake + 8.2) + +2002-04-08 23:44 japj + + * ChangeLog (1.14), vbe_display_api.txt (1.5, v0_3b): + + - preparing docs for new DISPI interface (for hardware scrolling) + +2002-04-03 19:06 japj + + * ChangeLog (1.13), TODO (1.9, v0_4b, v0_4a, v0_3b), vbe.c (1.16): + + - defaulting LFB on + updated changelog & todo + +2002-04-03 00:38 cbothamy + + * vbe.c (1.15), vgabios.c (1.11): + + - changed the logging ports to 0x500 -> 0x502 + +2002-03-14 17:54 japj + + * vbe.c (1.14): + + - vbetables.h is dependant upon some defines (VBE_HAVE_LFB), so + put the include *after* the define + +2002-03-13 21:47 japj + + * ChangeLog (1.12), TODO (1.8), vbe.c (1.13), vbetables.h (1.10), + vgabios.c (1.10): + + - made LFB dependant upon define - not implement vbe functions + return failure - updated todo & docs for things after bochs 1.4 + +2002-03-13 19:46 japj + + * vbe.h (1.11), vbe_display_api.txt (1.4): + + - added max video memory + documented what is in the 0xb0c0 + interface + +2002-03-12 02:33 cbothamy + + * ChangeLog (1.11), Makefile (1.4): + + - updated for 0.3a. Merged vgabios.bin and vbebios.bin + +2002-03-10 21:36 japj + + * ChangeLog (1.10), vbetables.h (1.9): + + - added LFB modes for testing with vbe-lfb patch in Bochs + +2002-03-10 17:42 japj + + * vbe.c (1.12, v0_3a): + + - show people when they do NOT have VBE support available + +2002-03-10 17:36 japj + + * TODO (1.7, v0_3a), vbe.c (1.11), vbe.h (1.10, v0_3a), vgabios.c + (1.9, v0_3a): + + - cleanup of vbe internal functions (set 8bpp mode is now + dependant on ModeInfo content instead of hardcoded functions) + +2002-03-10 17:20 cbothamy + + * ChangeLog (1.9, v0_3a), TODO (1.6): + + - updated for 0.3a + +2002-03-10 17:19 cbothamy + + * vbe.c (1.10), vbe.h (1.9): + + - added vbe_has_vbe_display function that detects an attached vbe + display + +2002-03-10 17:12 cbothamy + + * vgabios.c (1.8): + + - vbe calls are done only if a vbe display is detected + +2002-03-10 11:25 japj + + * vbe.h (1.8), vbe_display_api.txt (1.3, v0_3a): + + - preparing for LFB support + +2002-03-09 14:25 japj + + * vgabios.c (1.7): + + - fixing initial cursor shape to _ instead of - + +2002-03-08 23:08 japj + + * ChangeLog (1.8), TODO (1.5), vbe.c (1.9), vbe.h (1.7), vgabios.c + (1.6): + + - updating vbe code to new API + +2002-03-08 21:48 japj + + * vbe.c (1.8), vbe.h (1.6), vbetables.h (1.8, v0_3a): + + - updating vbe code with #defines from API + +2002-03-08 21:31 japj + + * vbe_display_api.txt (1.2): + + - adding some text about how banks work + +2002-03-08 21:09 japj + + * ChangeLog (1.7), vbe_display_api.txt (1.1): + + - adding vbe_display_api documentation + +2002-03-07 21:36 japj + + * ChangeLog (1.6), vbe.c (1.7), vbetables.h (1.7): + + - added 1024x768xbpp support - some more cleanups/comments + +2002-03-06 21:55 japj + + * ChangeLog (1.5), TODO (1.4), vbe.c (1.6), vbetables.h (1.6), + vgabios.c (1.5): + + - updated changelog with new modi - added 640x480x8 (Mandrake + Installer can use this!) - added pre VBE2 compatible 'detection' + - fixed problem when normal vga set mode wouldn't disable vbe + mode + +2002-03-06 20:59 japj + + * TODO (1.3), vbe.c (1.5), vbe.h (1.5), vbetables.h (1.5), + vgabios.c (1.4): + + - adding 640x400x8 and 800x600x8 vbe support (this depends + HEAVILY on my bochs vga code patch - japj) + +2002-03-06 18:00 japj + + * vbe.c (1.4), vbe.h (1.4), vbetables.h (1.4): + + - implemented banked & lfb support for 320x200x8bpp (some fixes + for vbetest program not displaying anything) + +2002-03-05 20:25 japj + + * Makefile (1.3, v0_3a): + + for vbe debug bios: - print debugging information in assembly + output - print source code in assembly output + +2002-03-01 19:39 japj + + * ChangeLog (1.4), TODO (1.2), vbe.c (1.3), vbe.h (1.3), + vbetables.h (1.3): + + - added vbe support for 320x200x8 using the standard vgamode + (0x13) + +2002-02-19 00:29 japj + + * ChangeLog (1.3): + + - updating ChangeLog with lfbprof + +2002-02-18 23:26 japj + + * tests/lfbprof/: lfbprof.c (1.2), lfbprof.h (1.2) (utags: v0_3a, + v0_3b, v0_4a, v0_4b): + + - fixed unsigned short for mode list (-1 != 0xffff otherwise) - + fixed LfbMapRealPointer macro mask problem (some modes were + skipped) - added some extra 'debugging' printf's + +2002-02-18 23:07 japj + + * tests/lfbprof/: Makefile (1.1, v0_4b, v0_4a, v0_3b, v0_3a), + lfbprof.c (1.1), lfbprof.h (1.1): + + - Adding lfbprof testprogram (for vbe testing purposes) It + needs to be compiled with the Watcom C Compiler + +2002-02-18 18:48 japj + + * vbe.c (1.2), vbe.h (1.2): + + - cosmetic updates to vbe.c/h + added bunch of FIXMEs for work + that needs to be done + +2002-02-18 18:34 japj + + * vbetables.h (1.2): + + - cosmetic updates in vbetables.h + +2002-02-18 18:32 japj + + * ChangeLog (1.2): + + updated changelog with merge of vbebios 0.2 + +2002-02-18 18:07 japj + + * vgabios.c (1.3): + + - small cosmetic cleanup in vgabios vbe code + added FIXMEs + +2002-02-18 17:55 japj + + * Makefile (1.2), dataseghack (1.2, v0_4b, v0_4a, v0_3b, v0_3a), + vbe.c (1.1), vbe.h (1.1), vbetables.h (1.1), vgabios.c (1.2), + vgabios.h (1.2, v0_3a): + + - merging with vbebios 0.2 release + +2002-02-18 11:31 cbothamy + + * BUGS (1.1, v0_4b, v0_4a, v0_3b, v0_3a), COPYING (1.1, v0_4b, + v0_4a, v0_3b, v0_3a), ChangeLog (1.1), Makefile (1.1), Notes + (1.1, v0_4b, v0_4a, v0_3b, v0_3a), README (1.1, v0_3b, v0_3a), + TODO (1.1), dataseghack (1.1), vgabios.c (1.1), vgabios.h (1.1), + vgafonts.h (1.1, v0_4b, v0_4a, v0_3b, v0_3a), vgatables.h (1.1, + v0_3b, v0_3a), tests/testbios.c (1.1, v0_4b, v0_4a, v0_3b, + v0_3a): + + - initial import + Index: /trunk/src/VBox/Devices/Graphics/BIOS-new/Makefile.kmk =================================================================== --- /trunk/src/VBox/Devices/Graphics/BIOS-new/Makefile.kmk (revision 42352) +++ /trunk/src/VBox/Devices/Graphics/BIOS-new/Makefile.kmk (revision 42353) @@ -79,6 +79,11 @@ VgaBiosBin_TEMPLATE = VBOXR3 VgaBiosBin_DEFS = IN_VBOXDD2 -VgaBiosBin_SOURCES = $(VgaBiosBin_0_OUTDIR)/VgaBiosBin.c -VgaBiosBin_CLEAN = $(VgaBiosBin_0_OUTDIR)/VgaBiosBin.c +VgaBiosBin_SOURCES = \ + $(VgaBiosBin_0_OUTDIR)/VgaBiosBin.c +VgaBiosBin_DEPS = \ + $(VgaBiosBin_0_OUTDIR)/vbetables.h +VgaBiosBin_CLEAN = \ + $(VgaBiosBin_0_OUTDIR)/VgaBiosBin.c \ + $(VgaBiosBin_0_OUTDIR)/vbetables.h ifdef VBOX_WITH_OPEN_WATCOM @@ -102,4 +107,18 @@ +# Rule for making the vbetables.h that DevVGA uses. +$$(VgaBiosBin_0_OUTDIR)/vbetables.h: $(MAKEFILE_CURRENT) $$(vbetables-gen_1_TARGET) | $$(dir $$@) + $(QUIET)$(REDIRECT) -wo $@ -- $(vbetables-gen_1_TARGET) + + +# +# The VBE tables. +# +BLDPROGS += vbetables-gen +vbetables-gen_TEMPLATE = VBOXBLDPROG +vbetables-gen_SOURCES = vbetables-gen.c +vbetables-gen_CLEAN = $(vbetables-gen) + + # # The VGA BIOS Logo. Index: /trunk/src/VBox/Devices/Graphics/BIOS-new/Notes =================================================================== --- /trunk/src/VBox/Devices/Graphics/BIOS-new/Notes (revision 42353) +++ /trunk/src/VBox/Devices/Graphics/BIOS-new/Notes (revision 42353) @@ -0,0 +1,11 @@ +Development notes +----------------- + +- need to split video init function + 1. set bios variables + 2. do the real init with io based on bios variables + +- characters format switching will set the bios + variables and call function #2 above + +- need to rework the tables as explained in Interrupt list Index: /trunk/src/VBox/Devices/Graphics/BIOS-new/README =================================================================== --- /trunk/src/VBox/Devices/Graphics/BIOS-new/README (revision 42353) +++ /trunk/src/VBox/Devices/Graphics/BIOS-new/README (revision 42353) @@ -0,0 +1,214 @@ +Plex86/Bochs VGABios +-------------------- + +The goal of this project is to have a LGPL'd Video Bios in plex86, +Bochs and qemu. +This VGA Bios is very specific to the emulated VGA card. +It is NOT meant to drive a physical vga card. + + +Cirrus SVGA extension +--------------------- + +The Cirrus SVGA extension is designed for the Cirrus emulation in Bochs and +qemu. The initial patch for the Cirrus extension has been written by Makoto +Suzuki (suzu). + + +Install +------- +To compile the VGA Bios you will need : +- gcc +- bcc +- as86 +- ld86 + +Untar the archive, and type make. You should get a "VGABIOS-lgpl-latest.bin" +file. Alternatively, you can use the binary file "VGABIOS-lgpl-latest.bin", +i have compiled for you. + +Edit your plex86/bochs conf file, and modify the load-rom command in the +VGA BIOS section, to point to the new vgabios image file. + + +Debugging +--------- +You can get a very basic debugging system: messages printed by the vgabios. +You have to register the "unmapped" device driver in plex86 or bochs, and make +sure it grabs port 0xfff0. + +Comment the #undef DEBUG at the beginning of vgabios.c. +You can then use the "printf" function in the bios. + + +Testing +------- +Look at the "testvga.c" file in the archive. This is a minimal Turbo C 2.0 +source file that calls a few int10 functions. Feel free to modify it to suit +your needs. + + +Copyright and License +--------------------- +This program has been written by Christophe Bothamy +It is protected by the GNU Lesser Public License, which you should +have received a copy of along with this package. + + +Reverse Engineering +------------------- +The VGA Bios has been written without reverse-engineering any existing Bios. + + +Acknowledgment +-------------- +The source code contains code ripped from rombios.c of plex86, written +by Kevin Lawton + +The source code contains fonts from fntcol16.zip (c) by Joseph Gil avalable at : +ftp://ftp.simtel.net/pub/simtelnet/msdos/screen/fntcol16.zip +These fonts are public domain + +The source code is based on information taken from : +- Kevin Lawton's vga card emulation for bochs/plex86 +- Ralf Brown's interrupts list avalaible at + http://www.cs.cmu.edu/afs/cs/user/ralf/pub/WWW/files.html +- Finn Thogersons' VGADOC4b available at http://home.worldonline.dk/~finth/ +- Michael Abrash's Graphics Programming Black Book +- Francois Gervais' book "programmation des cartes graphiques cga-ega-vga" + edited by sybex +- DOSEMU 1.0.1 source code for several tables values and formulas + + +Feedback +-------- +Please report any bugs, comments, patches for this VGA Bios to info@vruppert.de +You can find the latest release at : http://www.nongnu.org/vgabios/ +For any information on bochs, visit the website http://bochs.sourceforge.net/ +For any information on qemu, visit the website http://fabrice.bellard.free.fr/qemu/ + + +History +------- +vgabios-0.6a : Aug 19 2006 + - Volker + . added minimal support for the video parameter table (VPT) + . Cirrus SVGA now supports the "no clear" bit in Cirrus and VESA mode + . Bochs VBE protected mode interface improved + . save/restore video state support for Bochs VBE and standard VGA added + . generate vbetables.h dynamicly + . VBE video memory increased to 8 MB (VBE dispi ID changed to B0C4) + . lots of 4bpp VBE fixes (all 4bpp VBE modes now enabled) + . VGA compatible setup for VBE modes added + +vgabios-0.5d : Dec 29 2005 + - Volker + . Bochs VBE protected mode interface added (based on a patch by malc@pulsesoft.com) + . biossums utility now supports VGABIOS sizes up to 64 kBytes + . VGA mode 0x11: all color planes must be enabled in this 2-color VGA mode + +vgabios-0.5c : Jul 07 2005 + - Volker + . BIOS configuration word usually reports initial mode 80x25 color text + . vgabios function 0x0e (write teletype): linefeed (0x0a) only increments the + cursor row value + +vgabios-0.5b : May 24 2005 + - Volker + . fixed return value for the default case in the VBE section (non-debug mode) + . removed unused stuff + +vgabios-0.5a : Mar 07 2005 + - Volker + . Cirrus SVGA extension (initial patches from Makoto Suzuki, improvements + from Fabrice Bellard) + . vgabios image size is now exactly 32k with a checksum + . a lot of vgabios and vbe functions rewritten in assembler + . dynamicly generated VBE mode info list + . write character function for CGA and LINEAR8 modes + . read/write graphics pixel for some graphics modes + . text scroll feature for some graphics modes + . VBE 8-bit DAC support + +vgabios-0.4c : Nov 06 2003 + - Christophe + . fix font problem on initial screen of NT4 Loader + +vgabios-0.4b : Nov 04 2003 + - Volker + . fix offset of character tables + . optimizations of CRT controller accesses + . VBE i/o registers changed to 0x01CE/CF + (suggestion from Daniel Gimpelevich) + . "noclear" flag stored in BIOS area + . fix character height returned by get_font_info function + +vgabios-0.4a : Aug 17 2003 + - Volker + . VBE mode search rewritten (VBE modes with LFB bit removed) + . many bugfixes and optimizations + . write character function implemented for graphics modes + . support for 15bpp, 16bpp, 24bpp and 32bpp VBE modes added + . SVGA mode 0x6A added + . VBE modes 0x102, 0x117, 0x118 and 0x142 (Bochs specific) + +vgabios-0.3b : Nov 23 2002 + - Christophe + . added lfb-mode numbers (patch from mathis) + . updated the Makefile + . removed display of copyrights. + . changed the Copyright string to "LGPL VGABios developers" + - Volker + . set the cursor shape depending on the current font height + . clear BL before calling int 0x10 function 0x1103 in vgabios_init_func + . added some text font functions + - Jeroen + . Forced to new DISPI (0xb0c1) interface (requires latest bochs vbe code) + . Added multibuffering support + . Added new DISPI interface for: virt width, height, x offset, y offset + . Added LFB modes (to be used with the vbe-lfb patch in bochs) + see VBE_HAVE_LFB in vbe.c (currently default enabled) + . updated TODO & docs for changes after bochs 1.4 + +vgabios-0.3a : Mar 10 2002 + - Christophe + . Fixed bug in function ah=13 + - Jeroen + . updated vbebios implementation to new api + . added vbe_display_api documentation + . added 640x400x8, 640x480x8, 800x600x8, 1024x768 + (>640x480 needs a special bochs patch atm) + . added 320x200x8 vbe support (uses the standard 320x200x8 vga mode to + display, this allows for testing & having something on screen as well, + at least until bochs host side display is up & running) + . adding lfbprof (vbe) testprogram (+some small fixes to it) + . merging with vbebios 0.2 + +vgabios-0.2b : Nov 19 2001 + - Christophe + . Fixed bug in function ah=13 + +vgabios-0.2a : Nov 09 2001 + - Christophe + . Included bugfix from techt@pikeonline.net about grayscale summing + . Added the "IBM" string at org 0x1e as Bart Oldeman suggested + . Fixed DS and ES that where inverted in the int10 parameters list! + . The following have been implemented : + - function ax=1a00, ax=1a01, ah=1b + - function ax=1130 + . Added debug messages for unimplemented/unknown functions + Must be compiled with DEBUG defined. The output is trapped + by the unknown-ioport driver of plex/bochs (port 0xfff0 is used) + +vgabios-0.1a : May 8 2001 + - Christophe + . First release. The work has been focused only on text mode. + . The following have been implemented : + - inits + - int 10 handler + - functions ah=00, ah=01, ah=02, ah=03, ah=05, ah=06, ah=07, ah=08 + ah=09, ah=0a, ah=0e, ah=0f, ax=1000, ax=1001, ax=1002, ax=1003 + ax=1007, ax=1008, ax=1009, ax=1010, ax=1012, ax=1013, ax=1015 + ax=1017, ax=1018, ax=1019, ax=101a, ax=101b, ah=12 bl=10, + ah=12 bl=30, ah=12 bl=31, ah=12 bl=32, ah=12 bl=33, ah=12 bl=34 + ah=13 Index: /trunk/src/VBox/Devices/Graphics/BIOS-new/TODO =================================================================== --- /trunk/src/VBox/Devices/Graphics/BIOS-new/TODO (revision 42353) +++ /trunk/src/VBox/Devices/Graphics/BIOS-new/TODO (revision 42353) @@ -0,0 +1,26 @@ +Short term : +------------ + +General + - Fix init mode (ah=00). Should use more BIOS variables + - Add new functionalities and modify static functionality table + - Performance : 16 bits IO + +v0.7 + - Implement the remaining functions (don't know if all are needed): + - chargen ax=1120, ax=1121, ax=1122, ax=1123, ax=1124 + - display switch interface ah=12 bl=35 + - video refresh control ah=12 bl=36 + - Graphic modes + +v1.0 + - Bugfixes + + +================================================================================================= +VBE: +---- +Long term: +- have plex86 host side display interface +- have text io functions in vbe mode + Index: /trunk/src/VBox/Devices/Graphics/BIOS-new/tests/testbios.c =================================================================== --- /trunk/src/VBox/Devices/Graphics/BIOS-new/tests/testbios.c (revision 42353) +++ /trunk/src/VBox/Devices/Graphics/BIOS-new/tests/testbios.c (revision 42353) @@ -0,0 +1,353 @@ +/* + This is a little turbo C program that executes + several int10, and let you inspect the content + of the vgabios area + + It is used to test the behavior of the vgabios +*/ + +#include +#include +#include + + +typedef unsigned char Bit8u; +typedef unsigned short Bit16u; + +typedef struct +{Bit8u initial; + Bit8u current; + Bit16u nbcols; + Bit16u regen; + Bit16u start; + Bit16u curpos[8]; + Bit8u curtyp; + Bit8u curpage; + Bit16u crtc; + Bit16u msr; + Bit16u cgapal; + Bit8u nbrows; + Bit16u cheight; + Bit8u ctl; + Bit8u switches; + Bit8u modeset; + Bit8u dcc; + Bit16u vsseg; + Bit16u vsoffset; +} BIOSAREA; + +void int10ax0003(struct REGPACK *regs) +{ + regs->r_ax=0x0003; + intr(0x10,regs); +} + +void int10ax02(struct REGPACK *regs) +{ + regs->r_ax=0x0200; + regs->r_bx=0x0000; + regs->r_dx=0x1710; + intr(0x10,regs); + printf("We are now at 24/17"); +} + +void int10ax03(struct REGPACK *regs) +{ + regs->r_ax=0x0300; + regs->r_bx=0x0000; + intr(0x10,regs); + printf("\nCursor is ax%04x cx%04x dx%04x\n",regs->r_ax,regs->r_cx,regs->r_dx); +} + +void int10ax0501(struct REGPACK *regs) +{ + regs->r_ax=0x0501; + intr(0x10,regs); + regs->r_ax=0x0e61; + regs->r_bx=0x0000; + intr(0x10,regs); + printf("We are now on page 2"); +} + +void int10ax0602(struct REGPACK *regs) +{ + regs->r_ax=0x0602; + regs->r_bx=0x0700; + regs->r_cx=0x0101; + regs->r_dx=0x0a0a; + intr(0x10,regs); + printf("Scrolled 2 up"); +} + +void int10ax0702(struct REGPACK *regs) +{ + regs->r_ax=0x0702; + regs->r_bx=0x0700; + regs->r_cx=0x0101; + regs->r_dx=0x0a0a; + intr(0x10,regs); + printf("Scrolled 2 down"); +} + +void int10ax08(struct REGPACK *regs) +{ + regs->r_ax=0x0800; + regs->r_bx=0x0000; + intr(0x10,regs); +} + +void int10ax09(struct REGPACK *regs) +{ + char attr; + regs->r_ax=0x0501; + intr(0x10,regs); + for(attr=0;attr<16;attr++) + {printf("%02x ",attr); + regs->r_ax=0x0961+attr; + regs->r_bx=0x0100+attr; + regs->r_cx=0x0016; + intr(0x10,regs); + printf("\n"); + } +} + +void int10ax0a(struct REGPACK *regs) +{ + regs->r_ax=0x0501; + intr(0x10,regs); + regs->r_ax=0x0a62; + regs->r_bx=0x0101; + regs->r_cx=0x0016; + intr(0x10,regs); +} + +void int10ax0f(struct REGPACK *regs) +{ + regs->r_ax=0x0501; + intr(0x10,regs); + regs->r_ax=0x0f00; + intr(0x10,regs); +} + +void int10ax1b(struct REGPACK *regs) +{unsigned char table[64]; + unsigned char far *ptable; + int i; + + regs->r_ax=0x0501; + intr(0x10,regs); + regs->r_ax=0x1b00; + regs->r_bx=0x0000; + ptable=&table; + regs->r_es=FP_SEG(ptable); + regs->r_di=FP_OFF(ptable); + printf("Read state info in %04x:%04x\n",regs->r_es,regs->r_di); + intr(0x10,regs); + + for(i=0;i<64;i++) + {if(i%16==0)printf("\n%02x ",i); + printf("%02x ",table[i]); + } + printf("\n"); +} + +static unsigned char var[64]; + +void int10ax13(struct REGPACK *regs) +{unsigned char far *pvar; + + pvar=&var; + + regs->r_ax=0x1300; + regs->r_bx=0x000b; + regs->r_dx=0x1010; + regs->r_cx=0x0002; + regs->r_es=FP_SEG(pvar); + regs->r_bp=FP_OFF(pvar); + pokeb(regs->r_es,regs->r_bp,'t'); + pokeb(regs->r_es,regs->r_bp+1,'b'); + printf("Writing from %04x:%04x\n",regs->r_es,regs->r_bp); + intr(0x10,regs); + +} + +void switch_50(struct REGPACK *regs) +{ + regs->r_ax=0x1202; + regs->r_bx=0x3000; + intr(0x10,regs); + regs->r_ax=0x0003; + intr(0x10,regs); + regs->r_ax=0x1112; + regs->r_bx=0x0000; + intr(0x10,regs); +} + +char exec_function(struct REGPACK *regs) +{char c; + + printf("--- Functions --------------------\n"); + printf("a. int10 ax0003\t"); + printf("b. int10 ax02\t"); + printf("c. int10 ax03\t"); + printf("d. int10 ax0501\n"); + printf("e. int10 ax0602\t"); + printf("f. int10 ax0702\t"); + printf("g. int10 ax08\t"); + printf("h. int10 ax09\t"); + printf("i. int10 ax0a\n"); + printf("j. int10 ax0f\t"); + printf("k. int10 ax1b\t"); + printf("l. int10 ax13\n"); + printf("q. Quit\t"); + printf("r. switch to 50 lines\n"); + c=getche(); + + switch(c) + {case 'a': + int10ax0003(regs); + break; + case 'b': + int10ax02(regs); + break; + case 'c': + int10ax03(regs); + break; + case 'd': + int10ax0501(regs); + break; + case 'e': + int10ax0602(regs); + break; + case 'f': + int10ax0702(regs); + break; + case 'g': + int10ax08(regs); + break; + case 'h': + int10ax09(regs); + break; + case 'i': + int10ax0a(regs); + break; + case 'j': + int10ax0f(regs); + break; + case 'k': + int10ax1b(regs); + break; + case 'l': + int10ax13(regs); + break; + case 'q': + break; + case 'r': + switch_50(regs); + break; + default: + printf("No such function!\n"); + } + + if(c=='q')return 1; + while(kbhit()==0); + c=getch(); + + return 0; +} + +void read_bios_area(BIOSAREA *biosarea) +{ + biosarea->initial=peekb(0x40,0x10); + biosarea->current=peekb(0x40,0x49); + biosarea->nbcols=peek(0x40,0x4a); + biosarea->regen=peek(0x40,0x4c); + biosarea->start=peek(0x40,0x4e); + biosarea->curpos[0]=peek(0x40,0x50); + biosarea->curpos[1]=peek(0x40,0x52); + biosarea->curpos[2]=peek(0x40,0x54); + biosarea->curpos[3]=peek(0x40,0x56); + biosarea->curpos[4]=peek(0x40,0x58); + biosarea->curpos[5]=peek(0x40,0x5a); + biosarea->curpos[6]=peek(0x40,0x5c); + biosarea->curpos[7]=peek(0x40,0x5e); + biosarea->curtyp=peek(0x40,0x60); + biosarea->curpage=peekb(0x40,0x62); + biosarea->crtc=peek(0x40,0x63); + biosarea->msr=peekb(0x40,0x65); + biosarea->cgapal=peekb(0x40,0x66); + biosarea->nbrows=peekb(0x40,0x84); + biosarea->cheight=peek(0x40,0x85); + biosarea->ctl=peekb(0x40,0x87); + biosarea->switches=peekb(0x40,0x88); + biosarea->modeset=peekb(0x40,0x89); + biosarea->dcc=peekb(0x40,0x8a); + biosarea->vsseg=peek(0x40,0xa8); + biosarea->vsoffset=peek(0x40,0xaa); +} + +void show_bios_area(BIOSAREA *biosarea) +{ + printf("--- BIOS area --------------------\n"); + printf("initial : %02x\t",biosarea->initial); + printf("current : %02x\t",biosarea->current); + printf("nbcols : %04x\t",biosarea->nbcols); + printf("regen : %04x\t",biosarea->regen); + printf("start : %04x\n",biosarea->start); + printf("curpos : %04x %04x %04x %04x %04x %04x %04x %04x\n", + biosarea->curpos[0], biosarea->curpos[1], biosarea->curpos[2], biosarea->curpos[3], + biosarea->curpos[4], biosarea->curpos[5], biosarea->curpos[6], biosarea->curpos[7]); + printf("curtyp : %04x\t",biosarea->curtyp); + printf("curpage : %02x\t",biosarea->curpage); + printf("crtc : %04x\t",biosarea->crtc); + printf("msr : %04x\n",biosarea->msr); + printf("cgapal : %04x\t",biosarea->cgapal); + printf("nbrows-1: %02x\t",biosarea->nbrows); + printf("cheight : %04x\t",biosarea->cheight); + printf("ctl : %02x\n",biosarea->ctl); + printf("switches: %02x\t",biosarea->switches); + printf("modeset : %02x\t",biosarea->modeset); + printf("dcc : %02x\t",biosarea->dcc); + printf("vs : %04x:%04x\n",biosarea->vsseg,biosarea->vsoffset); +} + +void show_regs(struct REGPACK *regs) +{ + printf("--- Registers --------------------\n"); + printf("ax %04x\t",regs->r_ax); + printf("bx %04x\t",regs->r_bx); + printf("cx %04x\t",regs->r_cx); + printf("dx %04x\t",regs->r_dx); + printf("ds %04x\t",regs->r_ds); + printf("si %04x\t",regs->r_si); + printf("es %04x\t",regs->r_es); + printf("di %04x\n",regs->r_di); +} + +void reset_videomode() +{ + struct REGPACK regs; + + regs.r_ax=0x0003; + intr(0x10,®s); +} + +void main() +{ + + BIOSAREA biosarea; + struct REGPACK regs; + + directvideo=0; + + while(1) + { + read_bios_area(&biosarea); + + reset_videomode(); + show_bios_area(&biosarea); + show_regs(®s); + + if(exec_function(®s)!=0)break; + } +} Index: /trunk/src/VBox/Devices/Graphics/BIOS-new/vbe_display_api.txt =================================================================== --- /trunk/src/VBox/Devices/Graphics/BIOS-new/vbe_display_api.txt (revision 42353) +++ /trunk/src/VBox/Devices/Graphics/BIOS-new/vbe_display_api.txt (revision 42353) @@ -0,0 +1,237 @@ +VBE Display API +------------------------------------------------------------------------------------------------------------- + This document is part of the Bochs/VBEBios documentation, + it specifies the bochs host <-> vbebios client communication. + + That means, the display code implementation and the vbebios code depend + very heavily on each other. As such, this documents needs be synchronised + between bochs CVS and the vgabios CVS. + + This document does not describe how the VBEBios implements the VBE2/3 spec. + This document does not describe how the Bochs display code will display gfx based upon this spec. + + +API History +----------- +0xb0c0 supports the following VBE_DISPI_ interfaces (present in Bochs 1.4): + VBE_DISPI_INDEX_ID + VBE_DISPI_INDEX_XRES + VBE_DISPI_INDEX_YRES + VBE_DISPI_INDEX_BPP + VBE_DISPI_INDEX_ENABLE + VBE_DISPI_INDEX_BANK + + Bpp format supported is: + VBE_DISPI_BPP_8 + +0xb0c1 supports 0xb0c0 VBE_DISPI_ interfaces, additional interfaces (present in Bochs 2.0): + VBE_DISPI_INDEX_VIRT_WIDTH + VBE_DISPI_INDEX_VIRT_HEIGHT + VBE_DISPI_INDEX_X_OFFSET + VBE_DISPI_INDEX_Y_OFFSET + +0xb0c2 supports 0xb0c1 VBE_DISPI_ interfaces, interfaces updated for + additional features (present in Bochs 2.1): + VBE_DISPI_INDEX_BPP supports >8bpp color depth (value = bits) + VBE_DISPI_INDEX_ENABLE supports new flags VBE_DISPI_NOCLEARMEM and VBE_DISPI_LFB_ENABLED + VBE i/o registers changed from 0xFF80/81 to 0x01CE/CF + +0xb0c3 supports 0xb0c2 VBE_DISPI_ interfaces, interfaces updated for + additional features: + VBE_DISPI_INDEX_ENABLE supports new flags VBE_DISPI_GETCAPS and VBE_DISPI_8BIT_DAC + +0xb0c4 VBE video memory increased to 8 MB + + +History +------- + Version 0.6 2002 Nov 23 Jeroen Janssen + - Added LFB support + - Added Virt width, height and x,y offset + + Version 0.5 2002 March 08 Jeroen Janssen + - Added documentation about panic behaviour / current limits of the data values. + - Changed BPP API (in order to include future (A)RGB formats) + - Initial version (based upon extended display text of the vbe bochs display patch) + + +Todo +---- + Version 0.6+ [random order] + - Add lots of different (A)RGB formats + +References +---------- + [VBE3] VBE 3 Specification at + http://www.vesa.org/vbe3.pdf + + [BOCHS] Bochs Open Source IA-32 Emulator at + http://bochs.sourceforge.net + + [VBEBIOS] VBE Bios for Bochs at + http://savannah.gnu.org/projects/vgabios/ + + [Screenshots] Screenshots of programs using the VBE Bios at + http://japj.org/projects/bochs_plex86/screenshots.html + +Abbreviations +------------- + VBE Vesa Bios Extension + DISPI (Bochs) Display Interface + BPP Bits Per Pixel + LFB Linear Frame Buffer + + +#defines +-------- +vbetables-gen.c + #define VBE_DISPI_TOTAL_VIDEO_MEMORY_MB 8 + +vbe.h + #define VBE_DISPI_BANK_ADDRESS 0xA0000 + #define VBE_DISPI_BANK_SIZE_KB 64 + + #define VBE_DISPI_MAX_XRES 1024 + #define VBE_DISPI_MAX_YRES 768 + + #define VBE_DISPI_IOPORT_INDEX 0x01CE + #define VBE_DISPI_IOPORT_DATA 0x01CF + + #define VBE_DISPI_INDEX_ID 0x0 + #define VBE_DISPI_INDEX_XRES 0x1 + #define VBE_DISPI_INDEX_YRES 0x2 + #define VBE_DISPI_INDEX_BPP 0x3 + #define VBE_DISPI_INDEX_ENABLE 0x4 + #define VBE_DISPI_INDEX_BANK 0x5 + #define VBE_DISPI_INDEX_VIRT_WIDTH 0x6 + #define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7 + #define VBE_DISPI_INDEX_X_OFFSET 0x8 + #define VBE_DISPI_INDEX_Y_OFFSET 0x9 + + #define VBE_DISPI_ID0 0xB0C0 + #define VBE_DISPI_ID1 0xB0C1 + #define VBE_DISPI_ID2 0xB0C2 + #define VBE_DISPI_ID3 0xB0C3 + #define VBE_DISPI_ID4 0xB0C4 + + #define VBE_DISPI_DISABLED 0x00 + #define VBE_DISPI_ENABLED 0x01 + #define VBE_DISPI_VBE_ENABLED 0x40 + #define VBE_DISPI_NOCLEARMEM 0x80 + + #define VBE_DISPI_LFB_PHYSICAL_ADDRESS 0xE0000000 + +API +--- + The display api works by using a index (VBE_DISPI_IOPORT_INDEX) and + data (VBE_DISPI_IOPORT_DATA) ioport. One writes the index of the parameter to the index port. + Next, the parameter value can be read or written. + +[0xb0c0] + * VBE_DISPI_INDEX_ID : WORD {R,W} + This parameter can be used to detect the current display API (both bochs & vbebios). + The bios writes VBE_DISPI_ID0 to the dataport and reads it back again. + This way, the display code knows the vbebios 'ID' and the vbebios can check if the correct + display code is present. + As a result, a PANIC can be generated if an incompatible vbebios/display code combination is detected. + This panic can be generated from the bochs display code (NOT the bios, see Notes). + + Example values: VBE_DISPI_ID0 + + * VBE_DISPI_INDEX_XRES : WORD {R,W} + This parameter can be used to read/write the vbe display X resolution (in pixels). + It's illegal to set the XRES when the VBE is enabled (display code should generate PANIC). + + If the value written exceeds VBE_DISPI_MAX_XRES, the display code needs to generate a PANIC. + + Example values: 320,640,800,1024 + + * VBE_DISPI_INDEX_YRES : WORD {R,W} + This parameter can be used to read/write the vbe display Y resolution (in pixels). + It's illegal to set the YRES when the VBE is enabled (display code should generate PANIC). + + If the value written exceeds VBE_DISPI_MAX_YRES, the display code needs to generate a PANIC. + + Example values: 200,400,480,600,768 + + * VBE_DISPI_INDEX_BPP : WORD {R,W} + This parameter can be used to read/write the vbe display BPP. + It's illegal to set the BPP when the VBE is enabled (display code should generate PANIC). + + If the value written is an incompatible BPP, the display code needs to generate a PANIC. + + Example values: VBE_DISPI_BPP_8 + + * VBE_DISPI_INDEX_ENABLE : WORD {R,W} + This parameter can be used to read/write the vbe ENABLED state. + If the bios writes VBE_DISPI_ENABLED then the display code will setup a hostside display mode + with the current XRES, YRES and BPP settings. + If the bios write VBE_DISPI_DISABLED then the display code will switch back to normal vga mode behaviour. + + Example values: VBE_DISPI_ENABLED, VBE_DISPI_DISABLED + + * VBE_DISPI_INDEX_BANK : WORD {R,W} + This parameter can be used to read/write the current selected BANK (at 0xA0000). + This can be used for switching banks in banked mode. + +[0xb0c1] + * VBE_DISPI_INDEX_VIRT_WIDTH : WORD {R,W} + This parameter can be used to read/write the current virtual width. + Upon enabling a mode, this will be set to the current xres + Setting this field during enabled mode will result in the virtual width to be changed. + Value will be adjusted if current setting is not possible. + + * VBE_DISPI_INDEX_VIRT_HEIGHT : WORD {R} + This parameter can be read in order to obtain the current virtual height. + This setting will be adjusted after setting a virtual width in order to stay within limit of video memory. + + * VBE_DISPI_INDEX_X_OFFSET : WORD {R,W} + The current X offset (in pixels!) of the visible screen part. + Writing a new offset will also result in a complete screen refresh. + + * VBE_DISPI_INDEX_Y_OFFSET : WORD {R,W} + The current Y offset (in pixels!) of the visible screen part. + Writing a new offset will also result in a complete screen refresh. + + +[0xb0c2] + * VBE_DISPI_INDEX_BPP : WORD {R,W} + The value written is now the number of bits per pixel. A value of 0 is treated + the same as 8 for backward compatibilty. These values are supported: 8, 15, + 16, 24 and 32. The value of 4 is not yet handled in the VBE code. + * VBE_DISPI_INDEX_ENABLE : WORD {R,W} + The new flag VBE_DISPI_NOCLEARMEM allows to preserve the VBE video memory. + The new flag VBE_DISPI_LFB_ENABLED indicates the usage of the LFB. + +[0xb0c3] + * VBE_DISPI_INDEX_ENABLE : WORD {R,W} + If the new flag VBE_DISPI_GETCAPS is enabled, the xres, yres and bpp registers + return the gui capabilities. + The new flag VBE_DISPI_8BIT_DAC switches the DAC to 8 bit mode. + +[0xb0c4] + * VBE_DISPI_TOTAL_VIDEO_MEMORY_MB set to 8 (moved to auto-generated vbetables.h) + +Displaying GFX (banked mode) +-------------- + What happens is that the total screen is devided in banks of 'VBE_DISPI_BANK_SIZE_KB' KiloByte in size. + If you want to set a pixel you can calculate its bank by doing: + + offset = pixel_x + pixel_y * resolution_x; + bank = offset / 64 Kb (rounded 1.9999 -> 1) + + bank_pixel_pos = offset - bank * 64Kb + + Now you can set the current bank and put the pixel at VBE_DISPI_BANK_ADDRESS + bank_pixel_pos + +Displaying GFX (linear frame buffer mode) +-------------- + NOT WRITTEN YET + +Notes +----- + * Since the XRES/YRES/BPP may not be written when VBE is enabled, if you want to switch from one VBE mode + to another, you will need to disable VBE first. + + * Note when the bios doesn't find a valid DISPI_ID, it can disable the VBE functions. This allows people to + use the same bios for both vbe enabled and disabled bochs executables. Index: /trunk/src/VBox/Devices/Graphics/BIOS-new/vbetables-gen.c =================================================================== --- /trunk/src/VBox/Devices/Graphics/BIOS-new/vbetables-gen.c (revision 42353) +++ /trunk/src/VBox/Devices/Graphics/BIOS-new/vbetables-gen.c (revision 42353) @@ -0,0 +1,243 @@ +/* Generate the VGABIOS VBE Tables */ +#include +#include + +#define VBE_DISPI_TOTAL_VIDEO_MEMORY_MB 8 + +typedef struct { + int width; + int height; + int depth; + int mode; +} ModeInfo; + +ModeInfo modes[] = { + /* standard VESA modes */ +{ 640, 400, 8 , 0x100}, +{ 640, 480, 8 , 0x101}, +{ 800, 600, 4 , 0x102}, +{ 800, 600, 8 , 0x103}, +{ 1024, 768, 4 , 0x104}, +{ 1024, 768, 8 , 0x105}, +{ 1280, 1024, 4 , 0x106}, +{ 1280, 1024, 8 , 0x107}, +{ 320, 200, 15 , 0x10D}, +{ 320, 200, 16 , 0x10E}, +{ 320, 200, 24 , 0x10F}, +{ 640, 480, 15 , 0x110}, +{ 640, 480, 16 , 0x111}, +{ 640, 480, 24 , 0x112}, +{ 800, 600, 15 , 0x113}, +{ 800, 600, 16 , 0x114}, +{ 800, 600, 24 , 0x115}, +{ 1024, 768, 15 , 0x116}, +{ 1024, 768, 16 , 0x117}, +{ 1024, 768, 24 , 0x118}, +{ 1280, 1024, 15 , 0x119}, +{ 1280, 1024, 16 , 0x11A}, +{ 1280, 1024, 24 , 0x11B}, +#if 0 /* Ubuntu fails with this */ +{ 1600, 1200, 8 , 0x11C}, +{ 1600, 1200, 15 , 0x11D}, +{ 1600, 1200, 16 , 0x11E}, +{ 1600, 1200, 24 , 0x11F}, +#endif + + /* BOCHS/PLE, 86 'own' mode numbers */ +{ 320, 200, 32 , 0x140}, +{ 640, 400, 32 , 0x141}, +{ 640, 480, 32 , 0x142}, +{ 800, 600, 32 , 0x143}, +{ 1024, 768, 32 , 0x144}, +{ 1280, 1024, 32 , 0x145}, +{ 320, 200, 8 , 0x146}, +{ 1600, 1200, 32 , 0x147}, +{ 1152, 864, 8 , 0x148}, +{ 1152, 864, 15 , 0x149}, +{ 1152, 864, 16 , 0x14a}, +{ 1152, 864, 24 , 0x14b}, +{ 1152, 864, 32 , 0x14c}, +{ 0, }, +}; + +int main(int argc, char **argv) +{ + const ModeInfo *pm; + int pages, pitch; + int r_size, r_pos, g_size, g_pos, b_size, b_pos, a_size, a_pos; + const char *str; + long vram_size = VBE_DISPI_TOTAL_VIDEO_MEMORY_MB * 1024 * 1024; + + printf("/* THIS FILE IS AUTOMATICALLY GENERATED - DO NOT EDIT */\n\n"); + printf("#define VBE_DISPI_TOTAL_VIDEO_MEMORY_MB %d\n\n", VBE_DISPI_TOTAL_VIDEO_MEMORY_MB); + printf("static ModeInfoListItem mode_info_list[]=\n"); + printf("{\n"); + for (pm = modes; pm->mode != 0; pm++) { + if (pm->depth == 4) + pitch = (pm->width + 7) / 8; + else + pitch = pm->width * ((pm->depth + 7) / 8); + pages = vram_size / (pm->height * pitch); + if (pages > 0) { + printf("{ 0x%04x, /* %dx%dx%d */\n", + pm->mode, pm->width, pm->height, pm->depth); + if (pm->depth == 4) + printf("{ /*Bit16u ModeAttributes*/ %s,\n", + "VBE_MODE_ATTRIBUTE_SUPPORTED | " + "VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE | " + "VBE_MODE_ATTRIBUTE_COLOR_MODE | " + "VBE_MODE_ATTRIBUTE_TTY_BIOS_SUPPORT | " + "VBE_MODE_ATTRIBUTE_GRAPHICS_MODE"); + else + printf("{ /*Bit16u ModeAttributes*/ %s,\n", + "VBE_MODE_ATTRIBUTE_SUPPORTED | " + "VBE_MODE_ATTRIBUTE_EXTENDED_INFORMATION_AVAILABLE | " + "VBE_MODE_ATTRIBUTE_COLOR_MODE | " + "VBE_MODE_ATTRIBUTE_LINEAR_FRAME_BUFFER_MODE | " + "VBE_MODE_ATTRIBUTE_GRAPHICS_MODE"); + printf("/*Bit8u WinAAttributes*/ %s,\n", + "VBE_WINDOW_ATTRIBUTE_RELOCATABLE | " + "VBE_WINDOW_ATTRIBUTE_READABLE | " + "VBE_WINDOW_ATTRIBUTE_WRITEABLE"); + + printf("/*Bit8u WinBAttributes*/ %d,\n", 0); + + printf("/*Bit16u WinGranularity*/ %s,\n", "VBE_DISPI_BANK_SIZE_KB"); + + printf("/*Bit16u WinSize*/ %s,\n", "VBE_DISPI_BANK_SIZE_KB"); + + printf("/*Bit16u WinASegment*/ %s,\n", "VGAMEM_GRAPH"); + + printf("/*Bit16u WinBSegment*/ 0x%04x,\n", 0); + + printf("/*Bit32u WinFuncPtr*/ %d,\n", 0); + + printf("/*Bit16u BytesPerScanLine*/ %d,\n", pitch); + + /* Mandatory information for VBE 1.2 and above */ + printf("/*Bit16u XResolution*/ %d,\n", pm->width); + printf("/*Bit16u YResolution*/ %d,\n", pm->height); + printf("/*Bit8u XCharSize*/ %d,\n", 8); + printf("/*Bit8u YCharSize*/ %d,\n", 16); + if (pm->depth == 4) { + printf("/*Bit8u NumberOfPlanes*/ %d,\n", 4); + } else { + printf("/*Bit8u NumberOfPlanes*/ %d,\n", 1); + } + printf("/*Bit8u BitsPerPixel*/ %d,\n", pm->depth); + printf("/*Bit8u NumberOfBanks*/ %d,\n", 1); /* This would only be non-zero for CGA/HGC modes! */ + + if (pm->depth == 4) + str = "VBE_MEMORYMODEL_PLANAR"; + else if (pm->depth == 8) + str = "VBE_MEMORYMODEL_PACKED_PIXEL"; + else + str = "VBE_MEMORYMODEL_DIRECT_COLOR"; + printf("/*Bit8u MemoryModel*/ %s,\n", str); + printf("/*Bit8u BankSize*/ %d,\n", 0); + if (pm->depth == 4) + printf("/*Bit8u NumberOfImagePages*/ %d,\n", (pages / 4) - 1); + else + printf("/*Bit8u NumberOfImagePages*/ %d,\n", pages - 1); + printf("/*Bit8u Reserved_page*/ %d,\n", 0); + + /* Direct Color fields (required for direct/6 and YUV/7 memory models) */ + switch(pm->depth) { + case 15: + r_size = 5; + r_pos = 10; + g_size = 5; + g_pos = 5; + b_size = 5; + b_pos = 0; + a_size = 1; + a_pos = 15; + break; + case 16: + r_size = 5; + r_pos = 11; + g_size = 6; + g_pos = 5; + b_size = 5; + b_pos = 0; + a_size = 0; + a_pos = 0; + break; + case 24: + r_size = 8; + r_pos = 16; + g_size = 8; + g_pos = 8; + b_size = 8; + b_pos = 0; + a_size = 0; + a_pos = 0; + break; + case 32: + r_size = 8; + r_pos = 16; + g_size = 8; + g_pos = 8; + b_size = 8; + b_pos = 0; + a_size = 8; + a_pos = 24; + break; + default: + r_size = 0; + r_pos = 0; + g_size = 0; + g_pos = 0; + b_size = 0; + b_pos = 0; + a_size = 0; + a_pos = 0; + break; + } + + printf("/*Bit8u RedMaskSize*/ %d,\n", r_size); + printf("/*Bit8u RedFieldPosition*/ %d,\n", r_pos); + printf("/*Bit8u GreenMaskSize*/ %d,\n", g_size); + printf("/*Bit8u GreenFieldPosition*/ %d,\n", g_pos); + printf("/*Bit8u BlueMaskSize*/ %d,\n", b_size); + printf("/*Bit8u BlueFieldPosition*/ %d,\n", b_pos); + printf("/*Bit8u RsvdMaskSize*/ %d,\n", a_size); + printf("/*Bit8u RsvdFieldPosition*/ %d,\n", a_pos); + if (pm->depth == 32) + printf("/*Bit8u DirectColorModeInfo*/ %s,\n", + "VBE_DIRECTCOLOR_RESERVED_BITS_AVAILABLE"); + else + printf("/*Bit8u DirectColorModeInfo*/ %s,\n", "0"); + + /* Mandatory information for VBE 2.0 and above */ + if (pm->depth > 4) + printf("/*Bit32u PhysBasePtr*/ %s,\n", + "0xFFFF0000 /* Filled in at run-time; low word must be zero! */"); + else + printf("/*Bit32u PhysBasePtr*/ %s,\n", "0"); + printf("/*Bit32u OffScreenMemOffset*/ %d,\n", 0); + printf("/*Bit16u OffScreenMemSize*/ %d,\n", 0); + /* Mandatory information for VBE 3.0 and above */ + printf("/*Bit16u LinBytesPerScanLine*/ %d,\n", pitch); + printf("/*Bit8u BnkNumberOfPages*/ %d,\n", 0); + printf("/*Bit8u LinNumberOfPages*/ %d,\n", 0); + printf("/*Bit8u LinRedMaskSize*/ %d,\n", r_size); + printf("/*Bit8u LinRedFieldPosition*/ %d,\n", r_pos); + printf("/*Bit8u LinGreenMaskSize*/ %d,\n", g_size); + printf("/*Bit8u LinGreenFieldPosition*/ %d,\n", g_pos); + printf("/*Bit8u LinBlueMaskSize*/ %d,\n", b_size); + printf("/*Bit8u LinBlueFieldPosition*/ %d,\n", b_pos); + printf("/*Bit8u LinRsvdMaskSize*/ %d,\n", a_size); + printf("/*Bit8u LinRsvdFieldPosition*/ %d,\n", a_pos); + printf("/*Bit32u MaxPixelClock*/ %d,\n", 0); + printf("} },\n"); + } + } +#ifndef VBOX /* We'll add the terminator ourselves, thank you. */ + printf("{ VBE_VESA_MODE_END_OF_LIST,\n"); + printf("{ 0,\n"); + printf("} },\n"); +#endif + printf("};\n"); + return 0; +}