tdfx.h

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#ifndef _TDFX_H
#define _TDFX_H

#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>

/* membase0 register offsets */
#define STATUS      0x00
#define PCIINIT0    0x04
#define SIPMONITOR  0x08
#define LFBMEMORYCONFIG 0x0c
#define MISCINIT0   0x10
#define MISCINIT1   0x14
#define DRAMINIT0   0x18
#define DRAMINIT1   0x1c
#define AGPINIT     0x20
#define TMUGBEINIT  0x24
#define VGAINIT0    0x28
#define VGAINIT1    0x2c
#define DRAMCOMMAND 0x30
#define DRAMDATA    0x34
/* reserved 0x38 */
/* reserved 0x3c */
#define PLLCTRL0    0x40
#define PLLCTRL1    0x44
#define PLLCTRL2    0x48
#define DACMODE     0x4c
#define DACADDR     0x50
#define DACDATA     0x54
#define RGBMAXDELTA 0x58
#define VIDPROCCFG  0x5c
#define HWCURPATADDR    0x60
#define HWCURLOC    0x64
#define HWCURC0     0x68
#define HWCURC1     0x6c
#define VIDINFORMAT 0x70
#define VIDINSTATUS 0x74
#define VIDSERPARPORT   0x78
#define VIDINXDELTA 0x7c
#define VIDININITERR    0x80
#define VIDINYDELTA 0x84
#define VIDPIXBUFTHOLD  0x88
#define VIDCHRMIN   0x8c
#define VIDCHRMAX   0x90
#define VIDCURLIN   0x94
#define VIDSCREENSIZE   0x98
#define VIDOVRSTARTCRD  0x9c
#define VIDOVRENDCRD    0xa0
#define VIDOVRDUDX  0xa4
#define VIDOVRDUDXOFF   0xa8
#define VIDOVRDVDY  0xac
/* ... */
#define VIDOVRDVDYOFF   0xe0
#define VIDDESKSTART    0xe4
#define VIDDESKSTRIDE   0xe8
#define VIDINADDR0  0xec
#define VIDINADDR1  0xf0
#define VIDINADDR2  0xf4
#define VIDINSTRIDE 0xf8
#define VIDCUROVRSTART  0xfc

#define INTCTRL     (0x00100000 + 0x04)
#define CLIP0MIN    (0x00100000 + 0x08)
#define CLIP0MAX    (0x00100000 + 0x0c)
#define DSTBASE     (0x00100000 + 0x10)
#define DSTFORMAT   (0x00100000 + 0x14)
#define SRCBASE     (0x00100000 + 0x34)
#define COMMANDEXTRA_2D (0x00100000 + 0x38)
#define CLIP1MIN    (0x00100000 + 0x4c)
#define CLIP1MAX    (0x00100000 + 0x50)
#define SRCFORMAT   (0x00100000 + 0x54)
#define SRCSIZE     (0x00100000 + 0x58)
#define SRCXY       (0x00100000 + 0x5c)
#define COLORBACK   (0x00100000 + 0x60)
#define COLORFORE   (0x00100000 + 0x64)
#define DSTSIZE     (0x00100000 + 0x68)
#define DSTXY       (0x00100000 + 0x6c)
#define COMMAND_2D  (0x00100000 + 0x70)
#define LAUNCH_2D   (0x00100000 + 0x80)

#define COMMAND_3D  (0x00200000 + 0x120)

/* register bitfields (not all, only as needed) */

/* COMMAND_2D reg. values */
#define TDFX_ROP_COPY       0xcc    /* src */
#define TDFX_ROP_INVERT     0x55    /* NOT dst */
#define TDFX_ROP_XOR        0x66    /* src XOR dst */

#define AUTOINC_DSTX            BIT(10)
#define AUTOINC_DSTY            BIT(11)
#define COMMAND_2D_FILLRECT     0x05
#define COMMAND_2D_S2S_BITBLT       0x01    /* screen to screen */
#define COMMAND_2D_H2S_BITBLT       0x03    /* host to screen */

#define COMMAND_3D_NOP          0x00
#define STATUS_RETRACE          BIT(6)
#define STATUS_BUSY         BIT(9)
#define MISCINIT1_CLUT_INV      BIT(0)
#define MISCINIT1_2DBLOCK_DIS       BIT(15)
#define DRAMINIT0_SGRAM_NUM     BIT(26)
#define DRAMINIT0_SGRAM_TYPE        BIT(27)
#define DRAMINIT0_SGRAM_TYPE_MASK       (BIT(27) | BIT(28) | BIT(29))
#define DRAMINIT0_SGRAM_TYPE_SHIFT      27
#define DRAMINIT1_MEM_SDRAM     BIT(30)
#define VGAINIT0_VGA_DISABLE        BIT(0)
#define VGAINIT0_EXT_TIMING     BIT(1)
#define VGAINIT0_8BIT_DAC       BIT(2)
#define VGAINIT0_EXT_ENABLE     BIT(6)
#define VGAINIT0_WAKEUP_3C3     BIT(8)
#define VGAINIT0_LEGACY_DISABLE     BIT(9)
#define VGAINIT0_ALT_READBACK       BIT(10)
#define VGAINIT0_FAST_BLINK     BIT(11)
#define VGAINIT0_EXTSHIFTOUT        BIT(12)
#define VGAINIT0_DECODE_3C6     BIT(13)
#define VGAINIT0_SGRAM_HBLANK_DISABLE   BIT(22)
#define VGAINIT1_MASK           0x1fffff
#define VIDCFG_VIDPROC_ENABLE       BIT(0)
#define VIDCFG_CURS_X11         BIT(1)
#define VIDCFG_INTERLACE        BIT(3)
#define VIDCFG_HALF_MODE        BIT(4)
#define VIDCFG_DESK_ENABLE      BIT(7)
#define VIDCFG_CLUT_BYPASS      BIT(10)
#define VIDCFG_2X           BIT(26)
#define VIDCFG_HWCURSOR_ENABLE      BIT(27)
#define VIDCFG_PIXFMT_SHIFT             18
#define DACMODE_2X          BIT(0)

/* I2C bit locations in the VIDSERPARPORT register */
#define DDC_ENAB    0x00040000
#define DDC_SCL_OUT 0x00080000
#define DDC_SDA_OUT 0x00100000
#define DDC_SCL_IN  0x00200000
#define DDC_SDA_IN  0x00400000
#define I2C_ENAB    0x00800000
#define I2C_SCL_OUT 0x01000000
#define I2C_SDA_OUT 0x02000000
#define I2C_SCL_IN  0x04000000
#define I2C_SDA_IN  0x08000000

/* VGA rubbish, need to change this for multihead support */
#define MISC_W      0x3c2
#define MISC_R      0x3cc
#define SEQ_I       0x3c4
#define SEQ_D       0x3c5
#define CRT_I       0x3d4
#define CRT_D       0x3d5
#define ATT_IW      0x3c0
#define IS1_R       0x3da
#define GRA_I       0x3ce
#define GRA_D       0x3cf

#ifdef __KERNEL__

struct banshee_reg {
    /* VGA rubbish */
    unsigned char att[21];
    unsigned char crt[25];
    unsigned char gra[9];
    unsigned char misc[1];
    unsigned char seq[5];

    /* Banshee extensions */
    unsigned char ext[2];
    unsigned long vidcfg;
    unsigned long vidpll;
    unsigned long mempll;
    unsigned long gfxpll;
    unsigned long dacmode;
    unsigned long vgainit0;
    unsigned long vgainit1;
    unsigned long screensize;
    unsigned long stride;
    unsigned long cursloc;
    unsigned long curspataddr;
    unsigned long cursc0;
    unsigned long cursc1;
    unsigned long startaddr;
    unsigned long clip0min;
    unsigned long clip0max;
    unsigned long clip1min;
    unsigned long clip1max;
    unsigned long miscinit0;
};

struct tdfx_par;

struct tdfxfb_i2c_chan {
    struct tdfx_par *par;
    struct i2c_adapter adapter;
    struct i2c_algo_bit_data algo;
};

struct tdfx_par {
    u32 max_pixclock;
    u32 palette[16];
    void __iomem *regbase_virt;
    unsigned long iobase;
    int mtrr_handle;
#ifdef CONFIG_FB_3DFX_I2C
    struct tdfxfb_i2c_chan chan[2];
#endif
};

#endif  /* __KERNEL__ */

#endif  /* _TDFX_H */