9fa68eae9f
This is a framebuffer driver for the Cyberblade/i1 graphics core. Currently tridenfb claims to support the cyberblade/i1 graphics core. This is of very limited truth. Even vesafb is faster and provides more working modes and a much better quality of the video signal. There is a great number of bugs in tridentfb ... but most often it is impossible to decide if these bugs are real bugs or if fixing them for the cyberblade/i1 core would break support for one of the other supported chips. Tridentfb seems to be unmaintained,and documentation for most of the supported chips is not available. So "fixing" cyberblade/i1 support inside of tridentfb was not an option, it would have caused numerous if(CYBERBLADEi1) else ... cases and would have rendered the code to be almost unmaintainable. A first version of this driver was published on 2005-07-31. A fix for a bug reported by Jochen Hein was integrated as well as some changes requested by Antonino A. Daplas. A message has been added to tridentfb to inform current users of tridentfb to switch to cyblafb if the cyberblade/i1 graphics core is detected. This patch is one logical change, but because of the included documentation it is bigger than 70kb. Therefore it is not sent to lkml and linux-fbdev-devel, Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de> Cc: Muli Ben-Yehuda <mulix@mulix.org> Acked-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
172 lines
3.6 KiB
C
172 lines
3.6 KiB
C
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#ifndef CYBLAFB_DEBUG
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#define CYBLAFB_DEBUG 0
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#endif
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#if CYBLAFB_DEBUG
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#define debug(f,a...) printk("%s:" f, __FUNCTION__ , ## a);
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#else
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#define debug(f,a...)
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#endif
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#define output(f, a...) printk("cyblafb: " f, ## a)
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#define Kb (1024)
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#define Mb (Kb*Kb)
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/* PCI IDS of supported cards temporarily here */
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#define CYBERBLADEi1 0x8500
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/* these defines are for 'lcd' variable */
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#define LCD_STRETCH 0
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#define LCD_CENTER 1
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#define LCD_BIOS 2
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/* display types */
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#define DISPLAY_CRT 0
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#define DISPLAY_FP 1
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#define ROP_S 0xCC
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#define point(x,y) ((y)<<16|(x))
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//
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// Attribute Regs, ARxx, 3c0/3c1
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//
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#define AR00 0x00
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#define AR01 0x01
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#define AR02 0x02
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#define AR03 0x03
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#define AR04 0x04
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#define AR05 0x05
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#define AR06 0x06
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#define AR07 0x07
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#define AR08 0x08
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#define AR09 0x09
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#define AR0A 0x0A
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#define AR0B 0x0B
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#define AR0C 0x0C
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#define AR0D 0x0D
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#define AR0E 0x0E
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#define AR0F 0x0F
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#define AR10 0x10
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#define AR12 0x12
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#define AR13 0x13
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//
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// Sequencer Regs, SRxx, 3c4/3c5
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//
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#define SR00 0x00
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#define SR01 0x01
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#define SR02 0x02
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#define SR03 0x03
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#define SR04 0x04
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#define SR0D 0x0D
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#define SR0E 0x0E
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#define SR11 0x11
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#define SR18 0x18
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#define SR19 0x19
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//
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//
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//
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#define CR00 0x00
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#define CR01 0x01
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#define CR02 0x02
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#define CR03 0x03
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#define CR04 0x04
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#define CR05 0x05
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#define CR06 0x06
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#define CR07 0x07
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#define CR08 0x08
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#define CR09 0x09
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#define CR0A 0x0A
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#define CR0B 0x0B
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#define CR0C 0x0C
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#define CR0D 0x0D
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#define CR0E 0x0E
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#define CR0F 0x0F
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#define CR10 0x10
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#define CR11 0x11
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#define CR12 0x12
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#define CR13 0x13
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#define CR14 0x14
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#define CR15 0x15
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#define CR16 0x16
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#define CR17 0x17
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#define CR18 0x18
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#define CR19 0x19
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#define CR1A 0x1A
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#define CR1B 0x1B
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#define CR1C 0x1C
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#define CR1D 0x1D
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#define CR1E 0x1E
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#define CR1F 0x1F
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#define CR20 0x20
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#define CR21 0x21
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#define CR27 0x27
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#define CR29 0x29
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#define CR2A 0x2A
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#define CR2B 0x2B
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#define CR2D 0x2D
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#define CR2F 0x2F
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#define CR36 0x36
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#define CR38 0x38
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#define CR39 0x39
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#define CR3A 0x3A
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#define CR55 0x55
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#define CR56 0x56
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#define CR57 0x57
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#define CR58 0x58
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//
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//
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//
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#define GR00 0x01
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#define GR01 0x01
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#define GR02 0x02
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#define GR03 0x03
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#define GR04 0x04
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#define GR05 0x05
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#define GR06 0x06
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#define GR07 0x07
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#define GR08 0x08
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#define GR0F 0x0F
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#define GR20 0x20
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#define GR23 0x23
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#define GR2F 0x2F
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#define GR30 0x30
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#define GR31 0x31
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#define GR33 0x33
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#define GR52 0x52
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#define GR53 0x53
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#define GR5D 0x5d
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//
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// Graphics Engine
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//
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#define GEBase 0x2100 // could be mapped elsewhere if we like it
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#define GE00 (GEBase+0x00) // source 1, p 111
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#define GE04 (GEBase+0x04) // source 2, p 111
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#define GE08 (GEBase+0x08) // destination 1, p 111
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#define GE0C (GEBase+0x0C) // destination 2, p 112
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#define GE20 (GEBase+0x20) // engine status, p 113
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#define GE24 (GEBase+0x24) // reset all GE pointers
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#define GE44 (GEBase+0x44) // command register, p 126
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#define GE48 (GEBase+0x48) // raster operation, p 127
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#define GE60 (GEBase+0x60) // foreground color, p 128
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#define GE64 (GEBase+0x64) // background color, p 128
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#define GE6C (GEBase+0x6C) // Pattern and Style, p 129, ok
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#define GE9C (GEBase+0x9C) // pixel engine data port, p 125
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#define GEB8 (GEBase+0xB8) // Destination Stride / Buffer Base 0, p 133
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#define GEBC (GEBase+0xBC) // Destination Stride / Buffer Base 1, p 133
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#define GEC0 (GEBase+0xC0) // Destination Stride / Buffer Base 2, p 133
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#define GEC4 (GEBase+0xC4) // Destination Stride / Buffer Base 3, p 133
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#define GEC8 (GEBase+0xC8) // Source Stride / Buffer Base 0, p 133
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#define GECC (GEBase+0xCC) // Source Stride / Buffer Base 1, p 133
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#define GED0 (GEBase+0xD0) // Source Stride / Buffer Base 2, p 133
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#define GED4 (GEBase+0xD4) // Source Stride / Buffer Base 3, p 133
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