gbe.h

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/*
 * include/video/gbe.h -- SGI GBE (Graphics Back End)
 *
 * Copyright (C) 1999 Silicon Graphics, Inc. (Jeffrey Newquist)
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License version 2 as published by the Free Software Foundation.
 */

#ifndef __GBE_H__
#define __GBE_H__

struct sgi_gbe {
    volatile uint32_t ctrlstat; /* general control */
    volatile uint32_t dotclock; /* dot clock PLL control */
    volatile uint32_t i2c;      /* crt I2C control */
    volatile uint32_t sysclk;   /* system clock PLL control */
    volatile uint32_t i2cfp;    /* flat panel I2C control */
    volatile uint32_t id;       /* device id/chip revision */
    volatile uint32_t config;       /* power on configuration [1] */
    volatile uint32_t bist;         /* internal bist status [1] */
    uint32_t _pad0[0x010000/4 - 8];
    volatile uint32_t vt_xy;    /* current dot coords */
    volatile uint32_t vt_xymax; /* maximum dot coords */
    volatile uint32_t vt_vsync; /* vsync on/off */
    volatile uint32_t vt_hsync; /* hsync on/off */
    volatile uint32_t vt_vblank;    /* vblank on/off */
    volatile uint32_t vt_hblank;    /* hblank on/off */
    volatile uint32_t vt_flags; /* polarity of vt signals */
    volatile uint32_t vt_f2rf_lock; /* f2rf & framelck y coord */
    volatile uint32_t vt_intr01;    /* intr 0,1 y coords */
    volatile uint32_t vt_intr23;    /* intr 2,3 y coords */
    volatile uint32_t fp_hdrv;  /* flat panel hdrv on/off */
    volatile uint32_t fp_vdrv;  /* flat panel vdrv on/off */
    volatile uint32_t fp_de;    /* flat panel de on/off */
    volatile uint32_t vt_hpixen;    /* intrnl horiz pixel on/off */
    volatile uint32_t vt_vpixen;    /* intrnl vert pixel on/off */
    volatile uint32_t vt_hcmap; /* cmap write (horiz) */
    volatile uint32_t vt_vcmap; /* cmap write (vert) */
    volatile uint32_t did_start_xy; /* eol/f did/xy reset val */
    volatile uint32_t crs_start_xy; /* eol/f crs/xy reset val */
    volatile uint32_t vc_start_xy;  /* eol/f vc/xy reset val */
    uint32_t _pad1[0xffb0/4];
    volatile uint32_t ovr_width_tile;/*overlay plane ctrl 0 */
    volatile uint32_t ovr_inhwctrl; /* overlay plane ctrl 1 */
    volatile uint32_t ovr_control;  /* overlay plane ctrl 1 */
    uint32_t _pad2[0xfff4/4];
    volatile uint32_t frm_size_tile;/* normal plane ctrl 0 */
    volatile uint32_t frm_size_pixel;/*normal plane ctrl 1 */
    volatile uint32_t frm_inhwctrl; /* normal plane ctrl 2 */
    volatile uint32_t frm_control;  /* normal plane ctrl 3 */
    uint32_t _pad3[0xfff0/4];
    volatile uint32_t did_inhwctrl; /* DID control */
    volatile uint32_t did_control;  /* DID shadow */
    uint32_t _pad4[0x7ff8/4];
    volatile uint32_t mode_regs[32];/* WID table */
    uint32_t _pad5[0x7f80/4];
    volatile uint32_t cmap[6144];   /* color map */
    uint32_t _pad6[0x2000/4];
    volatile uint32_t cm_fifo;  /* color map fifo status */
    uint32_t _pad7[0x7ffc/4];
    volatile uint32_t gmap[256];    /* gamma map */
    uint32_t _pad8[0x7c00/4];
    volatile uint32_t gmap10[1024]; /* gamma map */
    uint32_t _pad9[0x7000/4];
    volatile uint32_t crs_pos;  /* cusror control 0 */
    volatile uint32_t crs_ctl;  /* cusror control 1 */
    volatile uint32_t crs_cmap[3];  /* crs cmap */
    uint32_t _pad10[0x7fec/4];
    volatile uint32_t crs_glyph[64];/* crs glyph */
    uint32_t _pad11[0x7f00/4];
    volatile uint32_t vc_0; /* video capture crtl 0 */
    volatile uint32_t vc_1; /* video capture crtl 1 */
    volatile uint32_t vc_2; /* video capture crtl 2 */
    volatile uint32_t vc_3; /* video capture crtl 3 */
    volatile uint32_t vc_4; /* video capture crtl 4 */
    volatile uint32_t vc_5; /* video capture crtl 5 */
    volatile uint32_t vc_6; /* video capture crtl 6 */
    volatile uint32_t vc_7; /* video capture crtl 7 */
    volatile uint32_t vc_8; /* video capture crtl 8 */
};

#define MASK(msb, lsb)      \
    ( (((u32)1<<((msb)-(lsb)+1))-1) << (lsb) )
#define GET(v, msb, lsb)    \
    ( ((u32)(v) & MASK(msb,lsb)) >> (lsb) )
#define SET(v, f, msb, lsb) \
    ( (v) = ((v)&~MASK(msb,lsb)) | (( (u32)(f)<<(lsb) ) & MASK(msb,lsb)) )

#define GET_GBE_FIELD(reg, field, v)        \
    GET((v), GBE_##reg##_##field##_MSB, GBE_##reg##_##field##_LSB)
#define SET_GBE_FIELD(reg, field, v, f)     \
    SET((v), (f), GBE_##reg##_##field##_MSB, GBE_##reg##_##field##_LSB)

/*
 * Bit mask information
 */
#define GBE_CTRLSTAT_CHIPID_MSB      3
#define GBE_CTRLSTAT_CHIPID_LSB      0
#define GBE_CTRLSTAT_SENSE_N_MSB     4
#define GBE_CTRLSTAT_SENSE_N_LSB     4
#define GBE_CTRLSTAT_PCLKSEL_MSB    29
#define GBE_CTRLSTAT_PCLKSEL_LSB    28

#define GBE_DOTCLK_M_MSB         7
#define GBE_DOTCLK_M_LSB         0
#define GBE_DOTCLK_N_MSB        13
#define GBE_DOTCLK_N_LSB         8
#define GBE_DOTCLK_P_MSB        15
#define GBE_DOTCLK_P_LSB        14
#define GBE_DOTCLK_RUN_MSB      20
#define GBE_DOTCLK_RUN_LSB      20

#define GBE_VT_XY_Y_MSB     23
#define GBE_VT_XY_Y_LSB     12
#define GBE_VT_XY_X_MSB     11
#define GBE_VT_XY_X_LSB      0
#define GBE_VT_XY_FREEZE_MSB        31
#define GBE_VT_XY_FREEZE_LSB        31

#define GBE_FP_VDRV_ON_MSB  23
#define GBE_FP_VDRV_ON_LSB  12
#define GBE_FP_VDRV_OFF_MSB 11
#define GBE_FP_VDRV_OFF_LSB 0

#define GBE_FP_HDRV_ON_MSB  23
#define GBE_FP_HDRV_ON_LSB  12
#define GBE_FP_HDRV_OFF_MSB 11
#define GBE_FP_HDRV_OFF_LSB 0

#define GBE_FP_DE_ON_MSB        23
#define GBE_FP_DE_ON_LSB        12
#define GBE_FP_DE_OFF_MSB       11
#define GBE_FP_DE_OFF_LSB       0

#define GBE_VT_VSYNC_VSYNC_ON_MSB   23
#define GBE_VT_VSYNC_VSYNC_ON_LSB   12
#define GBE_VT_VSYNC_VSYNC_OFF_MSB  11
#define GBE_VT_VSYNC_VSYNC_OFF_LSB   0

#define GBE_VT_HSYNC_HSYNC_ON_MSB   23
#define GBE_VT_HSYNC_HSYNC_ON_LSB   12
#define GBE_VT_HSYNC_HSYNC_OFF_MSB  11
#define GBE_VT_HSYNC_HSYNC_OFF_LSB   0

#define GBE_VT_VBLANK_VBLANK_ON_MSB 23
#define GBE_VT_VBLANK_VBLANK_ON_LSB 12
#define GBE_VT_VBLANK_VBLANK_OFF_MSB    11
#define GBE_VT_VBLANK_VBLANK_OFF_LSB     0

#define GBE_VT_HBLANK_HBLANK_ON_MSB 23
#define GBE_VT_HBLANK_HBLANK_ON_LSB 12
#define GBE_VT_HBLANK_HBLANK_OFF_MSB    11
#define GBE_VT_HBLANK_HBLANK_OFF_LSB     0

#define GBE_VT_FLAGS_F2RF_HIGH_MSB   6
#define GBE_VT_FLAGS_F2RF_HIGH_LSB   6
#define GBE_VT_FLAGS_SYNC_LOW_MSB    5
#define GBE_VT_FLAGS_SYNC_LOW_LSB    5
#define GBE_VT_FLAGS_SYNC_HIGH_MSB   4
#define GBE_VT_FLAGS_SYNC_HIGH_LSB   4
#define GBE_VT_FLAGS_HDRV_LOW_MSB    3
#define GBE_VT_FLAGS_HDRV_LOW_LSB    3
#define GBE_VT_FLAGS_HDRV_INVERT_MSB     2
#define GBE_VT_FLAGS_HDRV_INVERT_LSB     2
#define GBE_VT_FLAGS_VDRV_LOW_MSB    1
#define GBE_VT_FLAGS_VDRV_LOW_LSB    1
#define GBE_VT_FLAGS_VDRV_INVERT_MSB     0
#define GBE_VT_FLAGS_VDRV_INVERT_LSB     0

#define GBE_VT_VCMAP_VCMAP_ON_MSB   23
#define GBE_VT_VCMAP_VCMAP_ON_LSB   12
#define GBE_VT_VCMAP_VCMAP_OFF_MSB  11
#define GBE_VT_VCMAP_VCMAP_OFF_LSB   0

#define GBE_VT_HCMAP_HCMAP_ON_MSB   23
#define GBE_VT_HCMAP_HCMAP_ON_LSB   12
#define GBE_VT_HCMAP_HCMAP_OFF_MSB  11
#define GBE_VT_HCMAP_HCMAP_OFF_LSB   0

#define GBE_VT_XYMAX_MAXX_MSB   11
#define GBE_VT_XYMAX_MAXX_LSB    0
#define GBE_VT_XYMAX_MAXY_MSB   23
#define GBE_VT_XYMAX_MAXY_LSB   12

#define GBE_VT_HPIXEN_HPIXEN_ON_MSB 23
#define GBE_VT_HPIXEN_HPIXEN_ON_LSB 12
#define GBE_VT_HPIXEN_HPIXEN_OFF_MSB    11
#define GBE_VT_HPIXEN_HPIXEN_OFF_LSB     0

#define GBE_VT_VPIXEN_VPIXEN_ON_MSB 23
#define GBE_VT_VPIXEN_VPIXEN_ON_LSB 12
#define GBE_VT_VPIXEN_VPIXEN_OFF_MSB    11
#define GBE_VT_VPIXEN_VPIXEN_OFF_LSB     0

#define GBE_OVR_CONTROL_OVR_DMA_ENABLE_MSB   0
#define GBE_OVR_CONTROL_OVR_DMA_ENABLE_LSB   0

#define GBE_OVR_INHWCTRL_OVR_DMA_ENABLE_MSB  0
#define GBE_OVR_INHWCTRL_OVR_DMA_ENABLE_LSB  0

#define GBE_OVR_WIDTH_TILE_OVR_FIFO_RESET_MSB   13
#define GBE_OVR_WIDTH_TILE_OVR_FIFO_RESET_LSB   13

#define GBE_FRM_CONTROL_FRM_DMA_ENABLE_MSB   0
#define GBE_FRM_CONTROL_FRM_DMA_ENABLE_LSB   0
#define GBE_FRM_CONTROL_FRM_TILE_PTR_MSB    31
#define GBE_FRM_CONTROL_FRM_TILE_PTR_LSB     9
#define GBE_FRM_CONTROL_FRM_LINEAR_MSB       1
#define GBE_FRM_CONTROL_FRM_LINEAR_LSB       1

#define GBE_FRM_INHWCTRL_FRM_DMA_ENABLE_MSB  0
#define GBE_FRM_INHWCTRL_FRM_DMA_ENABLE_LSB  0

#define GBE_FRM_SIZE_TILE_FRM_WIDTH_TILE_MSB    12
#define GBE_FRM_SIZE_TILE_FRM_WIDTH_TILE_LSB     5
#define GBE_FRM_SIZE_TILE_FRM_RHS_MSB        4
#define GBE_FRM_SIZE_TILE_FRM_RHS_LSB        0
#define GBE_FRM_SIZE_TILE_FRM_DEPTH_MSB     14
#define GBE_FRM_SIZE_TILE_FRM_DEPTH_LSB     13
#define GBE_FRM_SIZE_TILE_FRM_FIFO_RESET_MSB    15
#define GBE_FRM_SIZE_TILE_FRM_FIFO_RESET_LSB    15

#define GBE_FRM_SIZE_PIXEL_FB_HEIGHT_PIX_MSB    31
#define GBE_FRM_SIZE_PIXEL_FB_HEIGHT_PIX_LSB    16

#define GBE_DID_CONTROL_DID_DMA_ENABLE_MSB   0
#define GBE_DID_CONTROL_DID_DMA_ENABLE_LSB   0
#define GBE_DID_INHWCTRL_DID_DMA_ENABLE_MSB  0
#define GBE_DID_INHWCTRL_DID_DMA_ENABLE_LSB  0

#define GBE_DID_START_XY_DID_STARTY_MSB     23
#define GBE_DID_START_XY_DID_STARTY_LSB     12
#define GBE_DID_START_XY_DID_STARTX_MSB     11
#define GBE_DID_START_XY_DID_STARTX_LSB      0

#define GBE_CRS_START_XY_CRS_STARTY_MSB     23
#define GBE_CRS_START_XY_CRS_STARTY_LSB     12
#define GBE_CRS_START_XY_CRS_STARTX_MSB     11
#define GBE_CRS_START_XY_CRS_STARTX_LSB      0

#define GBE_WID_AUX_MSB     12
#define GBE_WID_AUX_LSB     11
#define GBE_WID_GAMMA_MSB   10
#define GBE_WID_GAMMA_LSB   10
#define GBE_WID_CM_MSB       9
#define GBE_WID_CM_LSB       5
#define GBE_WID_TYP_MSB      4
#define GBE_WID_TYP_LSB      2
#define GBE_WID_BUF_MSB      1
#define GBE_WID_BUF_LSB      0

#define GBE_VC_START_XY_VC_STARTY_MSB   23
#define GBE_VC_START_XY_VC_STARTY_LSB   12
#define GBE_VC_START_XY_VC_STARTX_MSB   11
#define GBE_VC_START_XY_VC_STARTX_LSB    0

/* Constants */

#define GBE_FRM_DEPTH_8     0
#define GBE_FRM_DEPTH_16    1
#define GBE_FRM_DEPTH_32    2

#define GBE_CMODE_I8        0
#define GBE_CMODE_I12       1
#define GBE_CMODE_RG3B2     2
#define GBE_CMODE_RGB4      3
#define GBE_CMODE_ARGB5     4
#define GBE_CMODE_RGB8      5
#define GBE_CMODE_RGBA5     6
#define GBE_CMODE_RGB10     7

#define GBE_BMODE_BOTH      3

#define GBE_CRS_MAGIC       54
#define GBE_PIXEN_MAGIC_ON  19
#define GBE_PIXEN_MAGIC_OFF  2

#define GBE_TLB_SIZE        128

/* [1] - only GBE revision 2 and later */

/*
 * Video Timing Data Structure
 */

struct gbe_timing_info {
    int flags;
    short width;        /* Monitor resolution */
    short height;
    int fields_sec;     /* fields/sec  (Hz -3 dec. places */
    int cfreq;      /* pixel clock frequency (MHz -3 dec. places) */
    short htotal;       /* Horizontal total pixels */
    short hblank_start; /* Horizontal blank start */
    short hblank_end;   /* Horizontal blank end */
    short hsync_start;  /* Horizontal sync start */
    short hsync_end;    /* Horizontal sync end */
    short vtotal;       /* Vertical total lines */
    short vblank_start; /* Vertical blank start */
    short vblank_end;   /* Vertical blank end */
    short vsync_start;  /* Vertical sync start */
    short vsync_end;    /* Vertical sync end */
    short pll_m;        /* PLL M parameter */
    short pll_n;        /* PLL P parameter */
    short pll_p;        /* PLL N parameter */
};

/* Defines for gbe_vof_info_t flags */

#define GBE_VOF_UNKNOWNMON  1
#define GBE_VOF_STEREO      2
#define GBE_VOF_DO_GENSYNC  4   /* enable incoming sync */
#define GBE_VOF_SYNC_ON_GREEN   8   /* sync on green */
#define GBE_VOF_FLATPANEL   0x1000  /* FLATPANEL Timing */
#define GBE_VOF_MAGICKEY    0x2000  /* Backdoor key */

#endif      /* ! __GBE_H__ */