drivers/video/cyber2000fb.h - linux - Git at Google

 /*
  *  linux/drivers/video/cyber2000fb.h
  *
  *  Copyright (C) 1998-2000 Russell King
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
  * Integraphics Cyber2000 frame buffer device
  */

 /*
  * Internal CyberPro sizes and offsets.
  */
 #define MMIO_OFFSET	0x00800000
 #define MMIO_SIZE	0x000c0000

 #define NR_PALETTE	256

 #if defined(DEBUG) && defined(CONFIG_DEBUG_LL)
 static void debug_printf(char *fmt, ...)
 {
 	extern void printascii(const char *);
 	char buffer[128];
 	va_list ap;

 	va_start(ap, fmt);
 	vsprintf(buffer, fmt, ap);
 	va_end(ap);

 	printascii(buffer);
 }
 #else
 #define debug_printf(x...) do { } while (0)
 #endif

 #define RAMDAC_RAMPWRDN		0x01
 #define RAMDAC_DAC8BIT		0x02
 #define RAMDAC_VREFEN		0x04
 #define RAMDAC_BYPASS		0x10
 #define RAMDAC_DACPWRDN		0x40

 #define EXT_CRT_VRTOFL		0x11
 #define EXT_CRT_VRTOFL_LINECOMP10	0x10
 #define EXT_CRT_VRTOFL_INTERLACE	0x20

 #define EXT_CRT_IRQ		0x12
 #define EXT_CRT_IRQ_ENABLE		0x01
 #define EXT_CRT_IRQ_ACT_HIGH		0x04

 #define EXT_CRT_TEST		0x13

 #define EXT_SYNC_CTL		0x16
 #define EXT_SYNC_CTL_HS_NORMAL		0x00
 #define EXT_SYNC_CTL_HS_0		0x01
 #define EXT_SYNC_CTL_HS_1		0x02
 #define EXT_SYNC_CTL_HS_HSVS		0x03
 #define EXT_SYNC_CTL_VS_NORMAL		0x00
 #define EXT_SYNC_CTL_VS_0		0x04
 #define EXT_SYNC_CTL_VS_1		0x08
 #define EXT_SYNC_CTL_VS_COMP		0x0c

 #define EXT_BUS_CTL		0x30
 #define EXT_BUS_CTL_LIN_1MB		0x00
 #define EXT_BUS_CTL_LIN_2MB		0x01
 #define EXT_BUS_CTL_LIN_4MB		0x02
 #define EXT_BUS_CTL_ZEROWAIT		0x04
 #define EXT_BUS_CTL_PCIBURST_WRITE	0x20
 #define EXT_BUS_CTL_PCIBURST_READ	0x80	/* CyberPro 5000 only */

 #define EXT_SEG_WRITE_PTR	0x31
 #define EXT_SEG_READ_PTR	0x32
 #define EXT_BIU_MISC		0x33
 #define EXT_BIU_MISC_LIN_ENABLE		0x01
 #define EXT_BIU_MISC_COP_ENABLE		0x04
 #define EXT_BIU_MISC_COP_BFC		0x08

 #define EXT_FUNC_CTL		0x3c
 #define EXT_FUNC_CTL_EXTREGENBL		0x80	/* enable access to 0xbcxxx		*/

 #define PCI_BM_CTL		0x3e
 #define PCI_BM_CTL_ENABLE		0x01	/* enable bus-master			*/
 #define PCI_BM_CTL_BURST		0x02	/* enable burst				*/
 #define PCI_BM_CTL_BACK2BACK		0x04	/* enable back to back			*/
 #define PCI_BM_CTL_DUMMY		0x08	/* insert dummy cycle			*/

 #define X_V2_VID_MEM_START	0x40
 #define X_V2_VID_SRC_WIDTH	0x43
 #define X_V2_X_START		0x45
 #define X_V2_X_END		0x47
 #define X_V2_Y_START		0x49
 #define X_V2_Y_END		0x4b
 #define X_V2_VID_SRC_WIN_WIDTH	0x4d

 #define Y_V2_DDA_X_INC		0x43
 #define Y_V2_DDA_Y_INC		0x47
 #define Y_V2_VID_FIFO_CTL	0x49
 #define Y_V2_VID_FMT		0x4b
 #define Y_V2_VID_DISP_CTL1	0x4c
 #define Y_V2_VID_FIFO_CTL1	0x4d

 #define J_X2_VID_MEM_START	0x40
 #define J_X2_VID_SRC_WIDTH	0x43
 #define J_X2_X_START		0x47
 #define J_X2_X_END		0x49
 #define J_X2_Y_START		0x4b
 #define J_X2_Y_END		0x4d
 #define J_X2_VID_SRC_WIN_WIDTH	0x4f

 #define K_X2_DDA_X_INIT		0x40
 #define K_X2_DDA_X_INC		0x42
 #define K_X2_DDA_Y_INIT		0x44
 #define K_X2_DDA_Y_INC		0x46
 #define K_X2_VID_FMT		0x48
 #define K_X2_VID_DISP_CTL1	0x49

 #define K_CAP_X2_CTL1		0x49

 #define CURS_H_START		0x50
 #define CURS_H_PRESET		0x52
 #define CURS_V_START		0x53
 #define CURS_V_PRESET		0x55
 #define CURS_CTL		0x56

 #define EXT_ATTRIB_CTL		0x57
 #define EXT_ATTRIB_CTL_EXT		0x01

 #define EXT_OVERSCAN_RED	0x58
 #define EXT_OVERSCAN_GREEN	0x59
 #define EXT_OVERSCAN_BLUE	0x5a

 #define CAP_X_START		0x60
 #define CAP_X_END		0x62
 #define CAP_Y_START		0x64
 #define CAP_Y_END		0x66
 #define CAP_DDA_X_INIT		0x68
 #define CAP_DDA_X_INC		0x6a
 #define CAP_DDA_Y_INIT		0x6c
 #define CAP_DDA_Y_INC		0x6e

 #define EXT_MEM_CTL0		0x70
 #define EXT_MEM_CTL0_7CLK		0x01
 #define EXT_MEM_CTL0_RAS_1		0x02
 #define EXT_MEM_CTL0_RAS2CAS_1		0x04
 #define EXT_MEM_CTL0_MULTCAS		0x08
 #define EXT_MEM_CTL0_ASYM		0x10
 #define EXT_MEM_CTL0_CAS1ON		0x20
 #define EXT_MEM_CTL0_FIFOFLUSH		0x40
 #define EXT_MEM_CTL0_SEQRESET		0x80

 #define EXT_MEM_CTL1		0x71
 #define EXT_MEM_CTL1_PAR		0x00
 #define EXT_MEM_CTL1_SERPAR		0x01
 #define EXT_MEM_CTL1_SER		0x03
 #define EXT_MEM_CTL1_SYNC		0x04
 #define EXT_MEM_CTL1_VRAM		0x08
 #define EXT_MEM_CTL1_4K_REFRESH		0x10
 #define EXT_MEM_CTL1_256Kx4		0x00
 #define EXT_MEM_CTL1_512Kx8		0x40
 #define EXT_MEM_CTL1_1Mx16		0x60

 #define EXT_MEM_CTL2		0x72
 #define MEM_CTL2_SIZE_1MB		0x00
 #define MEM_CTL2_SIZE_2MB		0x01
 #define MEM_CTL2_SIZE_4MB		0x02
 #define MEM_CTL2_SIZE_MASK		0x03
 #define MEM_CTL2_64BIT			0x04

 #define EXT_HIDDEN_CTL1		0x73

 #define EXT_FIFO_CTL		0x74

 #define EXT_SEQ_MISC		0x77
 #define EXT_SEQ_MISC_8			0x01
 #define EXT_SEQ_MISC_16_RGB565		0x02
 #define EXT_SEQ_MISC_32			0x03
 #define EXT_SEQ_MISC_24_RGB888		0x04
 #define EXT_SEQ_MISC_16_RGB555		0x06
 #define EXT_SEQ_MISC_8_RGB332		0x09
 #define EXT_SEQ_MISC_16_RGB444		0x0a

 #define EXT_HIDDEN_CTL4		0x7a

 #define CURS_MEM_START		0x7e		/* bits 23..12 */

 #define CAP_PIP_X_START		0x80
 #define CAP_PIP_X_END		0x82
 #define CAP_PIP_Y_START		0x84
 #define CAP_PIP_Y_END		0x86

 #define EXT_CAP_CTL1		0x88

 #define EXT_CAP_CTL2		0x89
 #define EXT_CAP_CTL2_ODDFRAMEIRQ	0x01
 #define EXT_CAP_CTL2_ANYFRAMEIRQ	0x02

 #define BM_CTRL0		0x9c
 #define BM_CTRL1		0x9d

 #define EXT_CAP_MODE1		0xa4
 #define EXT_CAP_MODE1_8BIT		0x01	/* enable 8bit capture mode		*/
 #define EXT_CAP_MODE1_CCIR656		0x02	/* CCIR656 mode				*/
 #define EXT_CAP_MODE1_IGNOREVGT		0x04	/* ignore VGT				*/
 #define EXT_CAP_MODE1_ALTFIFO		0x10	/* use alternate FIFO for capture	*/
 #define EXT_CAP_MODE1_SWAPUV		0x20	/* swap UV bytes			*/
 #define EXT_CAP_MODE1_MIRRORY		0x40	/* mirror vertically			*/
 #define EXT_CAP_MODE1_MIRRORX		0x80	/* mirror horizontally			*/

 #define EXT_CAP_MODE2		0xa5
 #define EXT_CAP_MODE2_CCIRINVOE		0x01
 #define EXT_CAP_MODE2_CCIRINVVGT	0x02
 #define EXT_CAP_MODE2_CCIRINVHGT	0x04
 #define EXT_CAP_MODE2_CCIRINVDG		0x08
 #define EXT_CAP_MODE2_DATEND		0x10
 #define EXT_CAP_MODE2_CCIRDGH		0x20
 #define EXT_CAP_MODE2_FIXSONY		0x40
 #define EXT_CAP_MODE2_SYNCFREEZE	0x80

 #define EXT_TV_CTL		0xae

 #define EXT_DCLK_MULT		0xb0
 #define EXT_DCLK_DIV		0xb1
 #define EXT_DCLK_DIV_VFSEL		0x20
 #define EXT_MCLK_MULT		0xb2
 #define EXT_MCLK_DIV		0xb3

 #define EXT_LATCH1		0xb5
 #define EXT_LATCH1_VAFC_EN		0x01	/* enable VAFC				*/

 #define EXT_FEATURE		0xb7
 #define EXT_FEATURE_BUS_MASK		0x07	/* host bus mask			*/
 #define EXT_FEATURE_BUS_PCI		0x00
 #define EXT_FEATURE_BUS_VL_STD		0x04
 #define EXT_FEATURE_BUS_VL_LINEAR	0x05
 #define EXT_FEATURE_1682		0x20	/* IGS 1682 compatibility		*/

 #define EXT_LATCH2		0xb6
 #define EXT_LATCH2_I2C_CLKEN		0x10
 #define EXT_LATCH2_I2C_CLK		0x20
 #define EXT_LATCH2_I2C_DATEN		0x40
 #define EXT_LATCH2_I2C_DAT		0x80

 #define EXT_XT_CTL		0xbe
 #define EXT_XT_CAP16			0x04
 #define EXT_XT_LINEARFB			0x08
 #define EXT_XT_PAL			0x10

 #define EXT_MEM_START		0xc0		/* ext start address 21 bits		*/
 #define HOR_PHASE_SHIFT		0xc2		/* high 3 bits				*/
 #define EXT_SRC_WIDTH		0xc3		/* ext offset phase  10 bits		*/
 #define EXT_SRC_HEIGHT		0xc4		/* high 6 bits				*/
 #define EXT_X_START		0xc5		/* ext->screen, 16 bits			*/
 #define EXT_X_END		0xc7		/* ext->screen, 16 bits			*/
 #define EXT_Y_START		0xc9		/* ext->screen, 16 bits			*/
 #define EXT_Y_END		0xcb		/* ext->screen, 16 bits			*/
 #define EXT_SRC_WIN_WIDTH	0xcd		/* 8 bits				*/
 #define EXT_COLOUR_COMPARE	0xce		/* 24 bits				*/
 #define EXT_DDA_X_INIT		0xd1		/* ext->screen 16 bits			*/
 #define EXT_DDA_X_INC		0xd3		/* ext->screen 16 bits			*/
 #define EXT_DDA_Y_INIT		0xd5		/* ext->screen 16 bits			*/
 #define EXT_DDA_Y_INC		0xd7		/* ext->screen 16 bits			*/

 #define EXT_VID_FIFO_CTL	0xd9

 #define EXT_VID_FMT		0xdb
 #define EXT_VID_FMT_YUV422		0x00	/* formats - does this cause conversion? */
 #define EXT_VID_FMT_RGB555		0x01
 #define EXT_VID_FMT_RGB565		0x02
 #define EXT_VID_FMT_RGB888_24		0x03
 #define EXT_VID_FMT_RGB888_32		0x04
 #define EXT_VID_FMT_RGB8		0x05
 #define EXT_VID_FMT_RGB4444		0x06
 #define EXT_VID_FMT_RGB8T		0x07
 #define EXT_VID_FMT_DUP_PIX_ZOON	0x08	/* duplicate pixel zoom			*/
 #define EXT_VID_FMT_MOD_3RD_PIX		0x20	/* modify 3rd duplicated pixel		*/
 #define EXT_VID_FMT_DBL_H_PIX		0x40	/* double horiz pixels			*/
 #define EXT_VID_FMT_YUV128		0x80	/* YUV data offset by 128		*/

 #define EXT_VID_DISP_CTL1	0xdc
 #define EXT_VID_DISP_CTL1_INTRAM	0x01	/* video pixels go to internal RAM	*/
 #define EXT_VID_DISP_CTL1_IGNORE_CCOMP	0x02	/* ignore colour compare registers	*/
 #define EXT_VID_DISP_CTL1_NOCLIP	0x04	/* do not clip to 16235,16240		*/
 #define EXT_VID_DISP_CTL1_UV_AVG	0x08	/* U/V data is averaged			*/
 #define EXT_VID_DISP_CTL1_Y128		0x10	/* Y data offset by 128 (if YUV128 set)	*/
 #define EXT_VID_DISP_CTL1_VINTERPOL_OFF	0x20	/* disable vertical interpolation	*/
 #define EXT_VID_DISP_CTL1_FULL_WIN	0x40	/* video out window full		*/
 #define EXT_VID_DISP_CTL1_ENABLE_WINDOW	0x80	/* enable video window			*/

 #define EXT_VID_FIFO_CTL1	0xdd
 #define EXT_VID_FIFO_CTL1_OE_HIGH	0x02
 #define EXT_VID_FIFO_CTL1_INTERLEAVE	0x04	/* enable interleaved memory read	*/

 #define EXT_ROM_UCB4GH		0xe5
 #define EXT_ROM_UCB4GH_FREEZE		0x02	/* capture frozen			*/
 #define EXT_ROM_UCB4GH_ODDFRAME		0x04	/* 1 = odd frame captured		*/
 #define EXT_ROM_UCB4GH_1HL		0x08	/* first horizonal line after VGT falling edge */
 #define EXT_ROM_UCB4GH_ODD		0x10	/* odd frame indicator			*/
 #define EXT_ROM_UCB4GH_INTSTAT		0x20	/* video interrupt			*/

 #define VFAC_CTL1		0xe8
 #define VFAC_CTL1_CAPTURE		0x01	/* capture enable (only when VSYNC high)*/
 #define VFAC_CTL1_VFAC_ENABLE		0x02	/* vfac enable				*/
 #define VFAC_CTL1_FREEZE_CAPTURE	0x04	/* freeze capture			*/
 #define VFAC_CTL1_FREEZE_CAPTURE_SYNC	0x08	/* sync freeze capture			*/
 #define VFAC_CTL1_VALIDFRAME_SRC	0x10	/* select valid frame source		*/
 #define VFAC_CTL1_PHILIPS		0x40	/* select Philips mode			*/
 #define VFAC_CTL1_MODVINTERPOLCLK	0x80	/* modify vertical interpolation clocl	*/

 #define VFAC_CTL2		0xe9
 #define VFAC_CTL2_INVERT_VIDDATAVALID	0x01	/* invert video data valid		*/
 #define VFAC_CTL2_INVERT_GRAPHREADY	0x02	/* invert graphic ready output sig	*/
 #define VFAC_CTL2_INVERT_DATACLK	0x04	/* invert data clock signal		*/
 #define VFAC_CTL2_INVERT_HSYNC		0x08	/* invert hsync input			*/
 #define VFAC_CTL2_INVERT_VSYNC		0x10	/* invert vsync input			*/
 #define VFAC_CTL2_INVERT_FRAME		0x20	/* invert frame odd/even input		*/
 #define VFAC_CTL2_INVERT_BLANK		0x40	/* invert blank output			*/
 #define VFAC_CTL2_INVERT_OVSYNC		0x80	/* invert other vsync input		*/

 #define VFAC_CTL3		0xea
 #define VFAC_CTL3_CAP_LARGE_FIFO	0x01	/* large capture fifo			*/
 #define VFAC_CTL3_CAP_INTERLACE		0x02	/* capture odd and even fields		*/
 #define VFAC_CTL3_CAP_HOLD_4NS		0x00	/* hold capture data for 4ns		*/
 #define VFAC_CTL3_CAP_HOLD_2NS		0x04	/* hold capture data for 2ns		*/
 #define VFAC_CTL3_CAP_HOLD_6NS		0x08	/* hold capture data for 6ns		*/
 #define VFAC_CTL3_CAP_HOLD_0NS		0x0c	/* hold capture data for 0ns		*/
 #define VFAC_CTL3_CHROMAKEY		0x20	/* capture data will be chromakeyed	*/
 #define VFAC_CTL3_CAP_IRQ		0x40	/* enable capture interrupt		*/

 #define CAP_MEM_START		0xeb		/* 18 bits				*/
 #define CAP_MAP_WIDTH		0xed		/* high 6 bits				*/
 #define CAP_PITCH		0xee		/* 8 bits				*/

 #define CAP_CTL_MISC		0xef
 #define CAP_CTL_MISC_HDIV		0x01
 #define CAP_CTL_MISC_HDIV4		0x02
 #define CAP_CTL_MISC_ODDEVEN		0x04
 #define CAP_CTL_MISC_HSYNCDIV2		0x08
 #define CAP_CTL_MISC_SYNCTZHIGH		0x10
 #define CAP_CTL_MISC_SYNCTZOR		0x20
 #define CAP_CTL_MISC_DISPUSED		0x80

 #define REG_BANK		0xfa
 #define REG_BANK_X			0x00
 #define REG_BANK_Y			0x01
 #define REG_BANK_W			0x02
 #define REG_BANK_T			0x03
 #define REG_BANK_J			0x04
 #define REG_BANK_K			0x05

 /*
  * Bus-master
  */
 #define BM_VID_ADDR_LOW		0xbc040
 #define BM_VID_ADDR_HIGH	0xbc044
 #define BM_ADDRESS_LOW		0xbc080
 #define BM_ADDRESS_HIGH		0xbc084
 #define BM_LENGTH		0xbc088
 #define BM_CONTROL		0xbc08c
 #define BM_CONTROL_ENABLE		0x01	/* enable transfer			*/
 #define BM_CONTROL_IRQEN		0x02	/* enable IRQ at end of transfer	*/
 #define BM_CONTROL_INIT			0x04	/* initialise status & count		*/
 #define BM_COUNT		0xbc090		/* read-only				*/

 /*
  * TV registers
  */
 #define TV_VBLANK_EVEN_START	0xbe43c
 #define TV_VBLANK_EVEN_END	0xbe440
 #define TV_VBLANK_ODD_START	0xbe444
 #define TV_VBLANK_ODD_END	0xbe448
 #define TV_SYNC_YGAIN		0xbe44c
 #define TV_UV_GAIN		0xbe450
 #define TV_PED_UVDET		0xbe454
 #define TV_UV_BURST_AMP		0xbe458
 #define TV_HSYNC_START		0xbe45c
 #define TV_HSYNC_END		0xbe460
 #define TV_Y_DELAY1		0xbe464
 #define TV_Y_DELAY2		0xbe468
 #define TV_UV_DELAY1		0xbe46c
 #define TV_BURST_START		0xbe470
 #define TV_BURST_END		0xbe474
 #define TV_HBLANK_START		0xbe478
 #define TV_HBLANK_END		0xbe47c
 #define TV_PED_EVEN_START	0xbe480
 #define TV_PED_EVEN_END		0xbe484
 #define TV_PED_ODD_START	0xbe488
 #define TV_PED_ODD_END		0xbe48c
 #define TV_VSYNC_EVEN_START	0xbe490
 #define TV_VSYNC_EVEN_END	0xbe494
 #define TV_VSYNC_ODD_START	0xbe498
 #define TV_VSYNC_ODD_END	0xbe49c
 #define TV_SCFL			0xbe4a0
 #define TV_SCFH			0xbe4a4
 #define TV_SCP			0xbe4a8
 #define TV_DELAYBYPASS		0xbe4b4
 #define TV_EQL_END		0xbe4bc
 #define TV_SERR_START		0xbe4c0
 #define TV_SERR_END		0xbe4c4
 #define TV_CTL			0xbe4dc	/* reflects a previous register- MVFCLR, MVPCLR etc P241*/
 #define TV_VSYNC_VGA_HS		0xbe4e8
 #define TV_FLICK_XMIN		0xbe514
 #define TV_FLICK_XMAX		0xbe518
 #define TV_FLICK_YMIN		0xbe51c
 #define TV_FLICK_YMAX		0xbe520

 /*
  * Graphics Co-processor
  */
 #define CO_REG_CONTROL		0xbf011
 #define CO_CTRL_BUSY			0x80
 #define CO_CTRL_CMDFULL			0x04
 #define CO_CTRL_FIFOEMPTY		0x02
 #define CO_CTRL_READY			0x01

 #define CO_REG_SRC_WIDTH	0xbf018
 #define CO_REG_PIXFMT		0xbf01c
 #define CO_PIXFMT_32BPP			0x03
 #define CO_PIXFMT_24BPP			0x02
 #define CO_PIXFMT_16BPP			0x01
 #define CO_PIXFMT_8BPP			0x00

 #define CO_REG_FGMIX		0xbf048
 #define CO_FG_MIX_ZERO			0x00
 #define CO_FG_MIX_SRC_AND_DST		0x01
 #define CO_FG_MIX_SRC_AND_NDST		0x02
 #define CO_FG_MIX_SRC			0x03
 #define CO_FG_MIX_NSRC_AND_DST		0x04
 #define CO_FG_MIX_DST			0x05
 #define CO_FG_MIX_SRC_XOR_DST		0x06
 #define CO_FG_MIX_SRC_OR_DST		0x07
 #define CO_FG_MIX_NSRC_AND_NDST		0x08
 #define CO_FG_MIX_SRC_XOR_NDST		0x09
 #define CO_FG_MIX_NDST			0x0a
 #define CO_FG_MIX_SRC_OR_NDST		0x0b
 #define CO_FG_MIX_NSRC			0x0c
 #define CO_FG_MIX_NSRC_OR_DST		0x0d
 #define CO_FG_MIX_NSRC_OR_NDST		0x0e
 #define CO_FG_MIX_ONES			0x0f

 #define CO_REG_FGCOLOUR		0xbf058
 #define CO_REG_BGCOLOUR		0xbf05c
 #define CO_REG_PIXWIDTH		0xbf060
 #define CO_REG_PIXHEIGHT	0xbf062
 #define CO_REG_X_PHASE		0xbf078
 #define CO_REG_CMD_L		0xbf07c
 #define CO_CMD_L_PATTERN_FGCOL		0x8000
 #define CO_CMD_L_INC_LEFT		0x0004
 #define CO_CMD_L_INC_UP			0x0002

 #define CO_REG_CMD_H		0xbf07e
 #define CO_CMD_H_BGSRCMAP		0x8000	/* otherwise bg colour */
 #define CO_CMD_H_FGSRCMAP		0x2000	/* otherwise fg colour */
 #define CO_CMD_H_BLITTER		0x0800

 #define CO_REG_SRC1_PTR		0xbf170
 #define CO_REG_SRC2_PTR		0xbf174
 #define CO_REG_DEST_PTR		0xbf178
 #define CO_REG_DEST_WIDTH	0xbf218

 /*
  * Private structure
  */
 struct cfb_info;

 struct cyberpro_info {
 	struct pci_dev	*dev;
 	struct i2c_adapter *i2c;
 	unsigned char	__iomem *regs;
 	char		__iomem *fb;
 	char		dev_name[32];
 	unsigned int	fb_size;
 	unsigned int	chip_id;

 	/*
 	 * The following is a pointer to be passed into the
 	 * functions below.  The modules outside the main
 	 * cyber2000fb.c driver have no knowledge as to what
 	 * is within this structure.
 	 */
 	struct cfb_info *info;

 	/*
 	 * Use these to enable the BM or TV registers.  In an SMP
 	 * environment, these two function pointers should only be
 	 * called from the module_init() or module_exit()
 	 * functions.
 	 */
 	void (*enable_extregs)(struct cfb_info *);
 	void (*disable_extregs)(struct cfb_info *);
 };

 #define ID_IGA_1682		0
 #define ID_CYBERPRO_2000	1
 #define ID_CYBERPRO_2010	2
 #define ID_CYBERPRO_5000	3

 struct fb_var_screeninfo;

 /*
  * Note! Writing to the Cyber20x0 registers from an interrupt
  * routine is definitely a bad idea atm.
  */
 int cyber2000fb_attach(struct cyberpro_info *info, int idx);
 void cyber2000fb_detach(int idx);
 void cyber2000fb_enable_extregs(struct cfb_info *cfb);
 void cyber2000fb_disable_extregs(struct cfb_info *cfb);
 void cyber2000fb_get_fb_var(struct cfb_info *cfb, struct fb_var_screeninfo *var);
	/*
	* linux/drivers/video/cyber2000fb.h
	*
	* Copyright (C) 1998-2000 Russell King
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*
	* Integraphics Cyber2000 frame buffer device
	*/

	/*
	* Internal CyberPro sizes and offsets.
	*/
	#define MMIO_OFFSET 0x00800000
	#define MMIO_SIZE 0x000c0000

	#define NR_PALETTE 256

	#if defined(DEBUG) && defined(CONFIG_DEBUG_LL)
	static void debug_printf(char *fmt, ...)
	{
	extern void printascii(const char *);
	char buffer[128];
	va_list ap;

	va_start(ap, fmt);
	vsprintf(buffer, fmt, ap);
	va_end(ap);

	printascii(buffer);
	}
	#else
	#define debug_printf(x...) do { } while (0)
	#endif

	#define RAMDAC_RAMPWRDN 0x01
	#define RAMDAC_DAC8BIT 0x02
	#define RAMDAC_VREFEN 0x04
	#define RAMDAC_BYPASS 0x10
	#define RAMDAC_DACPWRDN 0x40

	#define EXT_CRT_VRTOFL 0x11
	#define EXT_CRT_VRTOFL_LINECOMP10 0x10
	#define EXT_CRT_VRTOFL_INTERLACE 0x20

	#define EXT_CRT_IRQ 0x12
	#define EXT_CRT_IRQ_ENABLE 0x01
	#define EXT_CRT_IRQ_ACT_HIGH 0x04

	#define EXT_CRT_TEST 0x13

	#define EXT_SYNC_CTL 0x16
	#define EXT_SYNC_CTL_HS_NORMAL 0x00
	#define EXT_SYNC_CTL_HS_0 0x01
	#define EXT_SYNC_CTL_HS_1 0x02
	#define EXT_SYNC_CTL_HS_HSVS 0x03
	#define EXT_SYNC_CTL_VS_NORMAL 0x00
	#define EXT_SYNC_CTL_VS_0 0x04
	#define EXT_SYNC_CTL_VS_1 0x08
	#define EXT_SYNC_CTL_VS_COMP 0x0c

	#define EXT_BUS_CTL 0x30
	#define EXT_BUS_CTL_LIN_1MB 0x00
	#define EXT_BUS_CTL_LIN_2MB 0x01
	#define EXT_BUS_CTL_LIN_4MB 0x02
	#define EXT_BUS_CTL_ZEROWAIT 0x04
	#define EXT_BUS_CTL_PCIBURST_WRITE 0x20
	#define EXT_BUS_CTL_PCIBURST_READ 0x80 /* CyberPro 5000 only */

	#define EXT_SEG_WRITE_PTR 0x31
	#define EXT_SEG_READ_PTR 0x32
	#define EXT_BIU_MISC 0x33
	#define EXT_BIU_MISC_LIN_ENABLE 0x01
	#define EXT_BIU_MISC_COP_ENABLE 0x04
	#define EXT_BIU_MISC_COP_BFC 0x08

	#define EXT_FUNC_CTL 0x3c
	#define EXT_FUNC_CTL_EXTREGENBL 0x80 /* enable access to 0xbcxxx */

	#define PCI_BM_CTL 0x3e
	#define PCI_BM_CTL_ENABLE 0x01 /* enable bus-master */
	#define PCI_BM_CTL_BURST 0x02 /* enable burst */
	#define PCI_BM_CTL_BACK2BACK 0x04 /* enable back to back */
	#define PCI_BM_CTL_DUMMY 0x08 /* insert dummy cycle */

	#define X_V2_VID_MEM_START 0x40
	#define X_V2_VID_SRC_WIDTH 0x43
	#define X_V2_X_START 0x45
	#define X_V2_X_END 0x47
	#define X_V2_Y_START 0x49
	#define X_V2_Y_END 0x4b
	#define X_V2_VID_SRC_WIN_WIDTH 0x4d

	#define Y_V2_DDA_X_INC 0x43
	#define Y_V2_DDA_Y_INC 0x47
	#define Y_V2_VID_FIFO_CTL 0x49
	#define Y_V2_VID_FMT 0x4b
	#define Y_V2_VID_DISP_CTL1 0x4c
	#define Y_V2_VID_FIFO_CTL1 0x4d

	#define J_X2_VID_MEM_START 0x40
	#define J_X2_VID_SRC_WIDTH 0x43
	#define J_X2_X_START 0x47
	#define J_X2_X_END 0x49
	#define J_X2_Y_START 0x4b
	#define J_X2_Y_END 0x4d
	#define J_X2_VID_SRC_WIN_WIDTH 0x4f

	#define K_X2_DDA_X_INIT 0x40
	#define K_X2_DDA_X_INC 0x42
	#define K_X2_DDA_Y_INIT 0x44
	#define K_X2_DDA_Y_INC 0x46
	#define K_X2_VID_FMT 0x48
	#define K_X2_VID_DISP_CTL1 0x49

	#define K_CAP_X2_CTL1 0x49

	#define CURS_H_START 0x50
	#define CURS_H_PRESET 0x52
	#define CURS_V_START 0x53
	#define CURS_V_PRESET 0x55
	#define CURS_CTL 0x56

	#define EXT_ATTRIB_CTL 0x57
	#define EXT_ATTRIB_CTL_EXT 0x01

	#define EXT_OVERSCAN_RED 0x58
	#define EXT_OVERSCAN_GREEN 0x59
	#define EXT_OVERSCAN_BLUE 0x5a

	#define CAP_X_START 0x60
	#define CAP_X_END 0x62
	#define CAP_Y_START 0x64
	#define CAP_Y_END 0x66
	#define CAP_DDA_X_INIT 0x68
	#define CAP_DDA_X_INC 0x6a
	#define CAP_DDA_Y_INIT 0x6c
	#define CAP_DDA_Y_INC 0x6e

	#define EXT_MEM_CTL0 0x70
	#define EXT_MEM_CTL0_7CLK 0x01
	#define EXT_MEM_CTL0_RAS_1 0x02
	#define EXT_MEM_CTL0_RAS2CAS_1 0x04
	#define EXT_MEM_CTL0_MULTCAS 0x08
	#define EXT_MEM_CTL0_ASYM 0x10
	#define EXT_MEM_CTL0_CAS1ON 0x20
	#define EXT_MEM_CTL0_FIFOFLUSH 0x40
	#define EXT_MEM_CTL0_SEQRESET 0x80

	#define EXT_MEM_CTL1 0x71
	#define EXT_MEM_CTL1_PAR 0x00
	#define EXT_MEM_CTL1_SERPAR 0x01
	#define EXT_MEM_CTL1_SER 0x03
	#define EXT_MEM_CTL1_SYNC 0x04
	#define EXT_MEM_CTL1_VRAM 0x08
	#define EXT_MEM_CTL1_4K_REFRESH 0x10
	#define EXT_MEM_CTL1_256Kx4 0x00
	#define EXT_MEM_CTL1_512Kx8 0x40
	#define EXT_MEM_CTL1_1Mx16 0x60

	#define EXT_MEM_CTL2 0x72
	#define MEM_CTL2_SIZE_1MB 0x00
	#define MEM_CTL2_SIZE_2MB 0x01
	#define MEM_CTL2_SIZE_4MB 0x02
	#define MEM_CTL2_SIZE_MASK 0x03
	#define MEM_CTL2_64BIT 0x04

	#define EXT_HIDDEN_CTL1 0x73

	#define EXT_FIFO_CTL 0x74

	#define EXT_SEQ_MISC 0x77
	#define EXT_SEQ_MISC_8 0x01
	#define EXT_SEQ_MISC_16_RGB565 0x02
	#define EXT_SEQ_MISC_32 0x03
	#define EXT_SEQ_MISC_24_RGB888 0x04
	#define EXT_SEQ_MISC_16_RGB555 0x06
	#define EXT_SEQ_MISC_8_RGB332 0x09
	#define EXT_SEQ_MISC_16_RGB444 0x0a

	#define EXT_HIDDEN_CTL4 0x7a

	#define CURS_MEM_START 0x7e /* bits 23..12 */

	#define CAP_PIP_X_START 0x80
	#define CAP_PIP_X_END 0x82
	#define CAP_PIP_Y_START 0x84
	#define CAP_PIP_Y_END 0x86

	#define EXT_CAP_CTL1 0x88

	#define EXT_CAP_CTL2 0x89
	#define EXT_CAP_CTL2_ODDFRAMEIRQ 0x01
	#define EXT_CAP_CTL2_ANYFRAMEIRQ 0x02

	#define BM_CTRL0 0x9c
	#define BM_CTRL1 0x9d

	#define EXT_CAP_MODE1 0xa4
	#define EXT_CAP_MODE1_8BIT 0x01 /* enable 8bit capture mode */
	#define EXT_CAP_MODE1_CCIR656 0x02 /* CCIR656 mode */
	#define EXT_CAP_MODE1_IGNOREVGT 0x04 /* ignore VGT */
	#define EXT_CAP_MODE1_ALTFIFO 0x10 /* use alternate FIFO for capture */
	#define EXT_CAP_MODE1_SWAPUV 0x20 /* swap UV bytes */
	#define EXT_CAP_MODE1_MIRRORY 0x40 /* mirror vertically */
	#define EXT_CAP_MODE1_MIRRORX 0x80 /* mirror horizontally */

	#define EXT_CAP_MODE2 0xa5
	#define EXT_CAP_MODE2_CCIRINVOE 0x01
	#define EXT_CAP_MODE2_CCIRINVVGT 0x02
	#define EXT_CAP_MODE2_CCIRINVHGT 0x04
	#define EXT_CAP_MODE2_CCIRINVDG 0x08
	#define EXT_CAP_MODE2_DATEND 0x10
	#define EXT_CAP_MODE2_CCIRDGH 0x20
	#define EXT_CAP_MODE2_FIXSONY 0x40
	#define EXT_CAP_MODE2_SYNCFREEZE 0x80

	#define EXT_TV_CTL 0xae

	#define EXT_DCLK_MULT 0xb0
	#define EXT_DCLK_DIV 0xb1
	#define EXT_DCLK_DIV_VFSEL 0x20
	#define EXT_MCLK_MULT 0xb2
	#define EXT_MCLK_DIV 0xb3

	#define EXT_LATCH1 0xb5
	#define EXT_LATCH1_VAFC_EN 0x01 /* enable VAFC */

	#define EXT_FEATURE 0xb7
	#define EXT_FEATURE_BUS_MASK 0x07 /* host bus mask */
	#define EXT_FEATURE_BUS_PCI 0x00
	#define EXT_FEATURE_BUS_VL_STD 0x04
	#define EXT_FEATURE_BUS_VL_LINEAR 0x05
	#define EXT_FEATURE_1682 0x20 /* IGS 1682 compatibility */

	#define EXT_LATCH2 0xb6
	#define EXT_LATCH2_I2C_CLKEN 0x10
	#define EXT_LATCH2_I2C_CLK 0x20
	#define EXT_LATCH2_I2C_DATEN 0x40
	#define EXT_LATCH2_I2C_DAT 0x80

	#define EXT_XT_CTL 0xbe
	#define EXT_XT_CAP16 0x04
	#define EXT_XT_LINEARFB 0x08
	#define EXT_XT_PAL 0x10

	#define EXT_MEM_START 0xc0 /* ext start address 21 bits */
	#define HOR_PHASE_SHIFT 0xc2 /* high 3 bits */
	#define EXT_SRC_WIDTH 0xc3 /* ext offset phase 10 bits */
	#define EXT_SRC_HEIGHT 0xc4 /* high 6 bits */
	#define EXT_X_START 0xc5 /* ext->screen, 16 bits */
	#define EXT_X_END 0xc7 /* ext->screen, 16 bits */
	#define EXT_Y_START 0xc9 /* ext->screen, 16 bits */
	#define EXT_Y_END 0xcb /* ext->screen, 16 bits */
	#define EXT_SRC_WIN_WIDTH 0xcd /* 8 bits */
	#define EXT_COLOUR_COMPARE 0xce /* 24 bits */
	#define EXT_DDA_X_INIT 0xd1 /* ext->screen 16 bits */
	#define EXT_DDA_X_INC 0xd3 /* ext->screen 16 bits */
	#define EXT_DDA_Y_INIT 0xd5 /* ext->screen 16 bits */
	#define EXT_DDA_Y_INC 0xd7 /* ext->screen 16 bits */

	#define EXT_VID_FIFO_CTL 0xd9

	#define EXT_VID_FMT 0xdb
	#define EXT_VID_FMT_YUV422 0x00 /* formats - does this cause conversion? */
	#define EXT_VID_FMT_RGB555 0x01
	#define EXT_VID_FMT_RGB565 0x02
	#define EXT_VID_FMT_RGB888_24 0x03
	#define EXT_VID_FMT_RGB888_32 0x04
	#define EXT_VID_FMT_RGB8 0x05
	#define EXT_VID_FMT_RGB4444 0x06
	#define EXT_VID_FMT_RGB8T 0x07
	#define EXT_VID_FMT_DUP_PIX_ZOON 0x08 /* duplicate pixel zoom */
	#define EXT_VID_FMT_MOD_3RD_PIX 0x20 /* modify 3rd duplicated pixel */
	#define EXT_VID_FMT_DBL_H_PIX 0x40 /* double horiz pixels */
	#define EXT_VID_FMT_YUV128 0x80 /* YUV data offset by 128 */

	#define EXT_VID_DISP_CTL1 0xdc
	#define EXT_VID_DISP_CTL1_INTRAM 0x01 /* video pixels go to internal RAM */
	#define EXT_VID_DISP_CTL1_IGNORE_CCOMP 0x02 /* ignore colour compare registers */
	#define EXT_VID_DISP_CTL1_NOCLIP 0x04 /* do not clip to 16235,16240 */
	#define EXT_VID_DISP_CTL1_UV_AVG 0x08 /* U/V data is averaged */
	#define EXT_VID_DISP_CTL1_Y128 0x10 /* Y data offset by 128 (if YUV128 set) */
	#define EXT_VID_DISP_CTL1_VINTERPOL_OFF 0x20 /* disable vertical interpolation */
	#define EXT_VID_DISP_CTL1_FULL_WIN 0x40 /* video out window full */
	#define EXT_VID_DISP_CTL1_ENABLE_WINDOW 0x80 /* enable video window */

	#define EXT_VID_FIFO_CTL1 0xdd
	#define EXT_VID_FIFO_CTL1_OE_HIGH 0x02
	#define EXT_VID_FIFO_CTL1_INTERLEAVE 0x04 /* enable interleaved memory read */

	#define EXT_ROM_UCB4GH 0xe5
	#define EXT_ROM_UCB4GH_FREEZE 0x02 /* capture frozen */
	#define EXT_ROM_UCB4GH_ODDFRAME 0x04 /* 1 = odd frame captured */
	#define EXT_ROM_UCB4GH_1HL 0x08 /* first horizonal line after VGT falling edge */
	#define EXT_ROM_UCB4GH_ODD 0x10 /* odd frame indicator */
	#define EXT_ROM_UCB4GH_INTSTAT 0x20 /* video interrupt */

	#define VFAC_CTL1 0xe8
	#define VFAC_CTL1_CAPTURE 0x01 /* capture enable (only when VSYNC high)*/
	#define VFAC_CTL1_VFAC_ENABLE 0x02 /* vfac enable */
	#define VFAC_CTL1_FREEZE_CAPTURE 0x04 /* freeze capture */
	#define VFAC_CTL1_FREEZE_CAPTURE_SYNC 0x08 /* sync freeze capture */
	#define VFAC_CTL1_VALIDFRAME_SRC 0x10 /* select valid frame source */
	#define VFAC_CTL1_PHILIPS 0x40 /* select Philips mode */
	#define VFAC_CTL1_MODVINTERPOLCLK 0x80 /* modify vertical interpolation clocl */

	#define VFAC_CTL2 0xe9
	#define VFAC_CTL2_INVERT_VIDDATAVALID 0x01 /* invert video data valid */
	#define VFAC_CTL2_INVERT_GRAPHREADY 0x02 /* invert graphic ready output sig */
	#define VFAC_CTL2_INVERT_DATACLK 0x04 /* invert data clock signal */
	#define VFAC_CTL2_INVERT_HSYNC 0x08 /* invert hsync input */
	#define VFAC_CTL2_INVERT_VSYNC 0x10 /* invert vsync input */
	#define VFAC_CTL2_INVERT_FRAME 0x20 /* invert frame odd/even input */
	#define VFAC_CTL2_INVERT_BLANK 0x40 /* invert blank output */
	#define VFAC_CTL2_INVERT_OVSYNC 0x80 /* invert other vsync input */

	#define VFAC_CTL3 0xea
	#define VFAC_CTL3_CAP_LARGE_FIFO 0x01 /* large capture fifo */
	#define VFAC_CTL3_CAP_INTERLACE 0x02 /* capture odd and even fields */
	#define VFAC_CTL3_CAP_HOLD_4NS 0x00 /* hold capture data for 4ns */
	#define VFAC_CTL3_CAP_HOLD_2NS 0x04 /* hold capture data for 2ns */
	#define VFAC_CTL3_CAP_HOLD_6NS 0x08 /* hold capture data for 6ns */
	#define VFAC_CTL3_CAP_HOLD_0NS 0x0c /* hold capture data for 0ns */
	#define VFAC_CTL3_CHROMAKEY 0x20 /* capture data will be chromakeyed */
	#define VFAC_CTL3_CAP_IRQ 0x40 /* enable capture interrupt */

	#define CAP_MEM_START 0xeb /* 18 bits */
	#define CAP_MAP_WIDTH 0xed /* high 6 bits */
	#define CAP_PITCH 0xee /* 8 bits */

	#define CAP_CTL_MISC 0xef
	#define CAP_CTL_MISC_HDIV 0x01
	#define CAP_CTL_MISC_HDIV4 0x02
	#define CAP_CTL_MISC_ODDEVEN 0x04
	#define CAP_CTL_MISC_HSYNCDIV2 0x08
	#define CAP_CTL_MISC_SYNCTZHIGH 0x10
	#define CAP_CTL_MISC_SYNCTZOR 0x20
	#define CAP_CTL_MISC_DISPUSED 0x80

	#define REG_BANK 0xfa
	#define REG_BANK_X 0x00
	#define REG_BANK_Y 0x01
	#define REG_BANK_W 0x02
	#define REG_BANK_T 0x03
	#define REG_BANK_J 0x04
	#define REG_BANK_K 0x05

	/*
	* Bus-master
	*/
	#define BM_VID_ADDR_LOW 0xbc040
	#define BM_VID_ADDR_HIGH 0xbc044
	#define BM_ADDRESS_LOW 0xbc080
	#define BM_ADDRESS_HIGH 0xbc084
	#define BM_LENGTH 0xbc088
	#define BM_CONTROL 0xbc08c
	#define BM_CONTROL_ENABLE 0x01 /* enable transfer */
	#define BM_CONTROL_IRQEN 0x02 /* enable IRQ at end of transfer */
	#define BM_CONTROL_INIT 0x04 /* initialise status & count */
	#define BM_COUNT 0xbc090 /* read-only */

	/*
	* TV registers
	*/
	#define TV_VBLANK_EVEN_START 0xbe43c
	#define TV_VBLANK_EVEN_END 0xbe440
	#define TV_VBLANK_ODD_START 0xbe444
	#define TV_VBLANK_ODD_END 0xbe448
	#define TV_SYNC_YGAIN 0xbe44c
	#define TV_UV_GAIN 0xbe450
	#define TV_PED_UVDET 0xbe454
	#define TV_UV_BURST_AMP 0xbe458
	#define TV_HSYNC_START 0xbe45c
	#define TV_HSYNC_END 0xbe460
	#define TV_Y_DELAY1 0xbe464
	#define TV_Y_DELAY2 0xbe468
	#define TV_UV_DELAY1 0xbe46c
	#define TV_BURST_START 0xbe470
	#define TV_BURST_END 0xbe474
	#define TV_HBLANK_START 0xbe478
	#define TV_HBLANK_END 0xbe47c
	#define TV_PED_EVEN_START 0xbe480
	#define TV_PED_EVEN_END 0xbe484
	#define TV_PED_ODD_START 0xbe488
	#define TV_PED_ODD_END 0xbe48c
	#define TV_VSYNC_EVEN_START 0xbe490
	#define TV_VSYNC_EVEN_END 0xbe494
	#define TV_VSYNC_ODD_START 0xbe498
	#define TV_VSYNC_ODD_END 0xbe49c
	#define TV_SCFL 0xbe4a0
	#define TV_SCFH 0xbe4a4
	#define TV_SCP 0xbe4a8
	#define TV_DELAYBYPASS 0xbe4b4
	#define TV_EQL_END 0xbe4bc
	#define TV_SERR_START 0xbe4c0
	#define TV_SERR_END 0xbe4c4
	#define TV_CTL 0xbe4dc /* reflects a previous register- MVFCLR, MVPCLR etc P241*/
	#define TV_VSYNC_VGA_HS 0xbe4e8
	#define TV_FLICK_XMIN 0xbe514
	#define TV_FLICK_XMAX 0xbe518
	#define TV_FLICK_YMIN 0xbe51c
	#define TV_FLICK_YMAX 0xbe520

	/*
	* Graphics Co-processor
	*/
	#define CO_REG_CONTROL 0xbf011
	#define CO_CTRL_BUSY 0x80
	#define CO_CTRL_CMDFULL 0x04
	#define CO_CTRL_FIFOEMPTY 0x02
	#define CO_CTRL_READY 0x01

	#define CO_REG_SRC_WIDTH 0xbf018
	#define CO_REG_PIXFMT 0xbf01c
	#define CO_PIXFMT_32BPP 0x03
	#define CO_PIXFMT_24BPP 0x02
	#define CO_PIXFMT_16BPP 0x01
	#define CO_PIXFMT_8BPP 0x00

	#define CO_REG_FGMIX 0xbf048
	#define CO_FG_MIX_ZERO 0x00
	#define CO_FG_MIX_SRC_AND_DST 0x01
	#define CO_FG_MIX_SRC_AND_NDST 0x02
	#define CO_FG_MIX_SRC 0x03
	#define CO_FG_MIX_NSRC_AND_DST 0x04
	#define CO_FG_MIX_DST 0x05
	#define CO_FG_MIX_SRC_XOR_DST 0x06
	#define CO_FG_MIX_SRC_OR_DST 0x07
	#define CO_FG_MIX_NSRC_AND_NDST 0x08
	#define CO_FG_MIX_SRC_XOR_NDST 0x09
	#define CO_FG_MIX_NDST 0x0a
	#define CO_FG_MIX_SRC_OR_NDST 0x0b
	#define CO_FG_MIX_NSRC 0x0c
	#define CO_FG_MIX_NSRC_OR_DST 0x0d
	#define CO_FG_MIX_NSRC_OR_NDST 0x0e
	#define CO_FG_MIX_ONES 0x0f

	#define CO_REG_FGCOLOUR 0xbf058
	#define CO_REG_BGCOLOUR 0xbf05c
	#define CO_REG_PIXWIDTH 0xbf060
	#define CO_REG_PIXHEIGHT 0xbf062
	#define CO_REG_X_PHASE 0xbf078
	#define CO_REG_CMD_L 0xbf07c
	#define CO_CMD_L_PATTERN_FGCOL 0x8000
	#define CO_CMD_L_INC_LEFT 0x0004
	#define CO_CMD_L_INC_UP 0x0002

	#define CO_REG_CMD_H 0xbf07e
	#define CO_CMD_H_BGSRCMAP 0x8000 /* otherwise bg colour */
	#define CO_CMD_H_FGSRCMAP 0x2000 /* otherwise fg colour */
	#define CO_CMD_H_BLITTER 0x0800

	#define CO_REG_SRC1_PTR 0xbf170
	#define CO_REG_SRC2_PTR 0xbf174
	#define CO_REG_DEST_PTR 0xbf178
	#define CO_REG_DEST_WIDTH 0xbf218

	/*
	* Private structure
	*/
	struct cfb_info;

	struct cyberpro_info {
	struct pci_dev *dev;
	struct i2c_adapter *i2c;
	unsigned char __iomem *regs;
	char __iomem *fb;
	char dev_name[32];
	unsigned int fb_size;
	unsigned int chip_id;

	/*
	* The following is a pointer to be passed into the
	* functions below. The modules outside the main
	* cyber2000fb.c driver have no knowledge as to what
	* is within this structure.
	*/
	struct cfb_info *info;

	/*
	* Use these to enable the BM or TV registers. In an SMP
	* environment, these two function pointers should only be
	* called from the module_init() or module_exit()
	* functions.
	*/
	void (enable_extregs)(struct cfb_info );
	void (disable_extregs)(struct cfb_info );
	};

	#define ID_IGA_1682 0
	#define ID_CYBERPRO_2000 1
	#define ID_CYBERPRO_2010 2
	#define ID_CYBERPRO_5000 3

	struct fb_var_screeninfo;

	/*
	* Note! Writing to the Cyber20x0 registers from an interrupt
	* routine is definitely a bad idea atm.
	*/
	int cyber2000fb_attach(struct cyberpro_info *info, int idx);
	void cyber2000fb_detach(int idx);
	void cyber2000fb_enable_extregs(struct cfb_info *cfb);
	void cyber2000fb_disable_extregs(struct cfb_info *cfb);
	void cyber2000fb_get_fb_var(struct cfb_info cfb, struct fb_var_screeninfo var);