OSCL-LXR linux-6.0.1/​drivers/​video/​fbdev/​cyber2000fb.h	Source navigation Diff markup Identifier search General search
	Version: linux-6.0.1 spark-3.0.0 hadoop-3.2.0-src hadoop-3.3.0-src spark-2.4.7 linux-4.15.13 hadoop-2.7.4-src Revert   Change

 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
  *  linux/drivers/video/cyber2000fb.h
  *
  *  Copyright (C) 1998-2000 Russell King
  *
  * 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 device   *dev;
     struct i2c_adapter *i2c;
     unsigned char   __iomem *regs;
     char        __iomem *fb;
     char        dev_name[32];
     unsigned int    fb_size;
     unsigned int    chip_id;
     unsigned int    irq;
 
     /*
      * 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;
 };
 
 #define ID_IGA_1682     0
 #define ID_CYBERPRO_2000    1
 #define ID_CYBERPRO_2010    2
 #define ID_CYBERPRO_5000    3
 
 /*
  * 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);

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