Author: wmb Date: 2009-02-20 10:17:56 +0100 (Fri, 20 Feb 2009) New Revision: 1108
Modified: cpu/x86/pc/biosload/c32vesa.fth cpu/x86/pc/biosload/callvbe.fth cpu/x86/pc/biosload/fw.bth cpu/x86/pc/olpc/iflash.fth Log: Biosload version - improvements to VESA BIOS handling under Syslinux.
Modified: cpu/x86/pc/biosload/c32vesa.fth =================================================================== --- cpu/x86/pc/biosload/c32vesa.fth 2009-02-20 09:14:16 UTC (rev 1107) +++ cpu/x86/pc/biosload/c32vesa.fth 2009-02-20 09:17:56 UTC (rev 1108) @@ -1,8 +1,8 @@ purpose: Call VESA BIOS functions via syslinux c32 callback
-[ifdef] notdef-get-com32-ptr -\ sp 0 #) mov \ Save COM32 stack pointer to get parameters -[then] +\ [ifdef] notdef-get-com32-ptr + sp 0 #) mov \ Save COM32 stack pointer for possible later use +\ [then] [ifdef] notdef-getvbe \ There is an extra return address on the stack from the e9 call above d# 16 [sp] bp mov \ COM32 intcall helper function
Modified: cpu/x86/pc/biosload/callvbe.fth =================================================================== --- cpu/x86/pc/biosload/callvbe.fth 2009-02-20 09:14:16 UTC (rev 1107) +++ cpu/x86/pc/biosload/callvbe.fth 2009-02-20 09:17:56 UTC (rev 1108) @@ -9,12 +9,12 @@ d# 16 [ax] bx mov \ COM32 intcall helper function d# 20 [ax] dx mov \ bounce buffer address
- 4f02 # d# 36 [dx] mov \ AX + h# 4f02 # d# 36 [dx] mov \ AX cx d# 24 [dx] mov \ BX
- \ dx push - 0 # push dx push +\ 0 # push + dx push h# 10 # push
bx call @@ -22,3 +22,118 @@
bp pop di pop si pop c; + +: +c32-regs ( offset -- adr ) 0 @ d# 20 + @ + ; +: 'c32-gs ( -- adr ) 0 +c32-regs ; +: 'c32-fs ( -- adr ) 2 +c32-regs ; +: 'c32-es ( -- adr ) 4 +c32-regs ; +: 'c32-ds ( -- adr ) 6 +c32-regs ; + +: 'c32-di ( -- adr ) d# 8 +c32-regs ; +: 'c32-si ( -- adr ) d# 12 +c32-regs ; +: 'c32-bp ( -- adr ) d# 16 +c32-regs ; +: 'c32-bx ( -- adr ) d# 24 +c32-regs ; +: 'c32-dx ( -- adr ) d# 28 +c32-regs ; +: 'c32-cx ( -- adr ) d# 32 +c32-regs ; +: 'c32-ax ( -- adr ) d# 36 +c32-regs ; +: 'c32-eflags ( -- adr ) d# 40 +c32-regs ; + +code c32-intcall ( int# -- ) + cx pop + + si push di push bp push + 0 #) ax mov \ Pointer to COM32 args + d# 16 [ax] bx mov \ COM32 intcall helper function + d# 20 [ax] dx mov \ bounce buffer address + + dx push +\ 0 # push + dx push + cx push \ Int# + + bx call + ax pop ax pop ax pop + + bp pop di pop si pop +c; + +: vbe-call ( function# -- ) + 'c32-ax l! h# 10 c32-intcall + 'c32-ax l@ h# 4f <> abort" VESA BIOS call failed" +; + +: c32-es:di! ( adr -- ) >seg:off 'c32-es w! 'c32-di w! ; +: vbe-info ( -- adr ) + h# 200 +c32-regs ( adr ) + h# 32454256 over l! ( adr ) + c32-es:di! + h# 4f00 vbe-call + h# 200 +c32-regs ( adr ) +; +: .vesa-modes ( -- ) + vbe-info ( adr ) + dup l@ h# 41534556 <> if ( adr ) + ." VBE info call failed" cr + drop exit + then ( adr ) + dup 6 + seg:off@ .cstr cr ( adr ) + d# 14 + seg:off@ ( 'mode-list ) + begin dup w@ dup h# ffff <> while . wa1+ repeat cr 2drop +; +: vesa-mode-info ( mode# -- adr ) + 'c32-cx l! ( ) + h# 200 +c32-regs c32-es:di! ( ) + h# 4f01 vbe-call ( ) + h# 200 +c32-regs ( adr ) +; + +[ifdef] Commentary +00.w mode attributes +02.b wina attributes +03.b winb attributes +04.w winGranularity +06.w WinSize +08.w WinASegment +0a.w WinBSegment +0c.l WinFuncPtr +10.w BytesPerScanLine +12.w XResolution +14.w YResolution +16.b XCharSize +17.b YCharSize +18.b NumberOfPlanes +19.b BitsPerPixel +1a.b NumberOfBanks +1b.b MemoryModel +1c.b BankSize +1d.b NumberOfImagePlanes +1e.b Reserved +1f.b RedMaskSize +20.b RedFieldPosition +21.b GreenMaskSize +22.b GreenFieldPosition +23.b BlueMaskSize +24.b BlueFieldPosition +25.b RsvdMaskSize +26.b RsvdFieldPosition +27.b DirectColorModeInfo +\ Following are VBE 2.0 and above +28.l PhysBasePtr +2c.l Reserved +30.w Reserved +\ Following are VBE 3.0 and above +32.w LinBytesPerScanLine +34.b BnkNumberOfImagePages +35.b LinNumberOfImagePages +36.b LinRedMaskSize +37.b LinRedFieldPosition +38.b LinGreenMaskSize +39.b LinGreenFieldPosition +3a.b LinBlueMaskSize +3b.b LinBlueFieldPosition +3c.b LinRsvdMaskSize +3d.b LinRsvdFieldPosition +3e.l MaxPixelClock +[then] + +: current-vesa-mode ( -- mode# ) h# 4f03 vbe-call 'c32-bx l@ ;
Modified: cpu/x86/pc/biosload/fw.bth =================================================================== --- cpu/x86/pc/biosload/fw.bth 2009-02-20 09:14:16 UTC (rev 1107) +++ cpu/x86/pc/biosload/fw.bth 2009-02-20 09:17:56 UTC (rev 1108) @@ -226,6 +226,10 @@ fload ${BP}/cpu/x86/pc/biosload/callbios.fth \ fload ${BP}/cpu/x86/pc/biosload/rmenter.fth
+[ifdef] syslinux-loaded +fload ${BP}/cpu/x86/pc/biosload/callvbe.fth +[then] + \ false to stand-init-debug? true to stand-init-debug?
Modified: cpu/x86/pc/olpc/iflash.fth =================================================================== --- cpu/x86/pc/olpc/iflash.fth 2009-02-20 09:14:16 UTC (rev 1107) +++ cpu/x86/pc/olpc/iflash.fth 2009-02-20 09:17:56 UTC (rev 1108) @@ -22,6 +22,7 @@ /mfg-data-merge move ;
+[ifdef] get-mfg-data \ unpollute-mfg-data clears the Insyde BIOS residue from the beginning \ of the manufacturing data area, restoring it to erased state : unpollute-mfg-data ( -- ) @@ -30,6 +31,7 @@ mfg-data-buf mfg-data-merge-offset h# ff fill put-mfg-data ; +[then]
: get-insyde ( ["filename"] -- ) parse-word ( adr len )
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