drivers/video/acornfb.h

   1 /*
   2  *  linux/drivers/video/acornfb.h
   3  *
   4  *  Copyright (C) 1998,1999 Russell King
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  *  Frame buffer code for Acorn platforms
  11  */
  12 #if defined(HAS_VIDC20)
  13 #include <asm/hardware/iomd.h>
  14 #define VIDC_PALETTE_SIZE       256
  15 #define VIDC_NAME               "VIDC20"
  16 #elif defined(HAS_VIDC)
  17 #include <asm/hardware/memc.h>
  18 #define VIDC_PALETTE_SIZE       16
  19 #define VIDC_NAME               "VIDC"
  20 #endif
  21
  22 #define EXTEND8(x) ((x)|(x)<<8)
  23 #define EXTEND4(x) ((x)|(x)<<4|(x)<<8|(x)<<12)
  24
  25 struct vidc20_palette {
  26         u_int red:8;
  27         u_int green:8;
  28         u_int blue:8;
  29         u_int ext:4;
  30         u_int unused:4;
  31 };
  32
  33 struct vidc_palette {
  34         u_int red:4;
  35         u_int green:4;
  36         u_int blue:4;
  37         u_int trans:1;
  38         u_int sbz1:13;
  39         u_int reg:4;
  40         u_int sbz2:2;
  41 };
  42
  43 union palette {
  44         struct vidc20_palette   vidc20;
  45         struct vidc_palette     vidc;
  46         u_int   p;
  47 };
  48
  49 struct acornfb_par {
  50         unsigned long   screen_end;
  51         unsigned int    dram_size;
  52         unsigned int    vram_half_sam;
  53         unsigned int    palette_size;
  54           signed int    montype;
  55         unsigned int    using_vram      : 1;
  56         unsigned int    dpms            : 1;
  57
  58         union palette palette[VIDC_PALETTE_SIZE];
  59
  60         union {
  61                 unsigned short cfb16[16];
  62                 unsigned long  cfb32[16];
  63         } cmap;
  64 };
  65
  66 struct vidc_timing {
  67         u_int   h_cycle;
  68         u_int   h_sync_width;
  69         u_int   h_border_start;
  70         u_int   h_display_start;
  71         u_int   h_display_end;
  72         u_int   h_border_end;
  73         u_int   h_interlace;
  74
  75         u_int   v_cycle;
  76         u_int   v_sync_width;
  77         u_int   v_border_start;
  78         u_int   v_display_start;
  79         u_int   v_display_end;
  80         u_int   v_border_end;
  81
  82         u_int   control;
  83
  84         /* VIDC20 only */
  85         u_int   pll_ctl;
  86 };
  87
  88 struct modey_params {
  89         u_int   y_res;
  90         u_int   u_margin;
  91         u_int   b_margin;
  92         u_int   vsync_len;
  93         u_int   vf;
  94 };
  95
  96 struct modex_params {
  97         u_int   x_res;
  98         u_int   l_margin;
  99         u_int   r_margin;
 100         u_int   hsync_len;
 101         u_int   clock;
 102         u_int   hf;
 103         const struct modey_params *modey;
 104 };
 105
 106 #ifdef HAS_VIDC
 107
 108 #define VID_CTL_VS_NVSYNC       (1 << 3)
 109 #define VID_CTL_HS_NHSYNC       (1 << 2)
 110 #define VID_CTL_24MHz           (0)
 111 #define VID_CTL_25MHz           (1)
 112 #define VID_CTL_36MHz           (2)
 113
 114 #define VIDC_CTRL_CSYNC         (1 << 7)
 115 #define VIDC_CTRL_INTERLACE     (1 << 6)
 116 #define VIDC_CTRL_FIFO_0_4      (0 << 4)
 117 #define VIDC_CTRL_FIFO_1_5      (1 << 4)
 118 #define VIDC_CTRL_FIFO_2_6      (2 << 4)
 119 #define VIDC_CTRL_FIFO_3_7      (3 << 4)
 120 #define VIDC_CTRL_1BPP          (0 << 2)
 121 #define VIDC_CTRL_2BPP          (1 << 2)
 122 #define VIDC_CTRL_4BPP          (2 << 2)
 123 #define VIDC_CTRL_8BPP          (3 << 2)
 124 #define VIDC_CTRL_DIV3          (0 << 0)
 125 #define VIDC_CTRL_DIV2          (1 << 0)
 126 #define VIDC_CTRL_DIV1_5        (2 << 0)
 127 #define VIDC_CTRL_DIV1          (3 << 0)
 128
 129 #endif
 130
 131 #ifdef HAS_VIDC20
 132 /*
 133  * VIDC20 registers
 134  */
 135 #define VIDC20_CTRL             0xe0000000
 136 #define VIDC20_CTRL_PIX_VCLK    (0 << 0)
 137 #define VIDC20_CTRL_PIX_HCLK    (1 << 0)
 138 #define VIDC20_CTRL_PIX_RCLK    (2 << 0)
 139 #define VIDC20_CTRL_PIX_CK      (0 << 2)
 140 #define VIDC20_CTRL_PIX_CK2     (1 << 2)
 141 #define VIDC20_CTRL_PIX_CK3     (2 << 2)
 142 #define VIDC20_CTRL_PIX_CK4     (3 << 2)
 143 #define VIDC20_CTRL_PIX_CK5     (4 << 2)
 144 #define VIDC20_CTRL_PIX_CK6     (5 << 2)
 145 #define VIDC20_CTRL_PIX_CK7     (6 << 2)
 146 #define VIDC20_CTRL_PIX_CK8     (7 << 2)
 147 #define VIDC20_CTRL_1BPP        (0 << 5)
 148 #define VIDC20_CTRL_2BPP        (1 << 5)
 149 #define VIDC20_CTRL_4BPP        (2 << 5)
 150 #define VIDC20_CTRL_8BPP        (3 << 5)
 151 #define VIDC20_CTRL_16BPP       (4 << 5)
 152 #define VIDC20_CTRL_32BPP       (6 << 5)
 153 #define VIDC20_CTRL_FIFO_NS     (0 << 8)
 154 #define VIDC20_CTRL_FIFO_4      (1 << 8)
 155 #define VIDC20_CTRL_FIFO_8      (2 << 8)
 156 #define VIDC20_CTRL_FIFO_12     (3 << 8)
 157 #define VIDC20_CTRL_FIFO_16     (4 << 8)
 158 #define VIDC20_CTRL_FIFO_20     (5 << 8)
 159 #define VIDC20_CTRL_FIFO_24     (6 << 8)
 160 #define VIDC20_CTRL_FIFO_28     (7 << 8)
 161 #define VIDC20_CTRL_INT         (1 << 12)
 162 #define VIDC20_CTRL_DUP         (1 << 13)
 163 #define VIDC20_CTRL_PDOWN       (1 << 14)
 164
 165 #define VIDC20_ECTL             0xc0000000
 166 #define VIDC20_ECTL_REG(x)      ((x) & 0xf3)
 167 #define VIDC20_ECTL_ECK         (1 << 2)
 168 #define VIDC20_ECTL_REDPED      (1 << 8)
 169 #define VIDC20_ECTL_GREENPED    (1 << 9)
 170 #define VIDC20_ECTL_BLUEPED     (1 << 10)
 171 #define VIDC20_ECTL_DAC         (1 << 12)
 172 #define VIDC20_ECTL_LCDGS       (1 << 13)
 173 #define VIDC20_ECTL_HRM         (1 << 14)
 174
 175 #define VIDC20_ECTL_HS_MASK     (3 << 16)
 176 #define VIDC20_ECTL_HS_HSYNC    (0 << 16)
 177 #define VIDC20_ECTL_HS_NHSYNC   (1 << 16)
 178 #define VIDC20_ECTL_HS_CSYNC    (2 << 16)
 179 #define VIDC20_ECTL_HS_NCSYNC   (3 << 16)
 180
 181 #define VIDC20_ECTL_VS_MASK     (3 << 18)
 182 #define VIDC20_ECTL_VS_VSYNC    (0 << 18)
 183 #define VIDC20_ECTL_VS_NVSYNC   (1 << 18)
 184 #define VIDC20_ECTL_VS_CSYNC    (2 << 18)
 185 #define VIDC20_ECTL_VS_NCSYNC   (3 << 18)
 186
 187 #define VIDC20_DCTL             0xf0000000
 188 /* 0-9 = number of words in scanline */
 189 #define VIDC20_DCTL_SNA         (1 << 12)
 190 #define VIDC20_DCTL_HDIS        (1 << 13)
 191 #define VIDC20_DCTL_BUS_NS      (0 << 16)
 192 #define VIDC20_DCTL_BUS_D31_0   (1 << 16)
 193 #define VIDC20_DCTL_BUS_D63_32  (2 << 16)
 194 #define VIDC20_DCTL_BUS_D63_0   (3 << 16)
 195 #define VIDC20_DCTL_VRAM_DIS    (0 << 18)
 196 #define VIDC20_DCTL_VRAM_PXCLK  (1 << 18)
 197 #define VIDC20_DCTL_VRAM_PXCLK2 (2 << 18)
 198 #define VIDC20_DCTL_VRAM_PXCLK4 (3 << 18)
 199
 200 #endif