include/video/uvesafb.h

   1 #ifndef _UVESAFB_H
   2 #define _UVESAFB_H
   3
   4 #include <uapi/video/uvesafb.h>
   5
   6
   7 /* VBE CRTC Info Block */
   8 struct vbe_crtc_ib {
   9         u16 horiz_total;
  10         u16 horiz_start;
  11         u16 horiz_end;
  12         u16 vert_total;
  13         u16 vert_start;
  14         u16 vert_end;
  15         u8  flags;
  16         u32 pixel_clock;
  17         u16 refresh_rate;
  18         u8  reserved[40];
  19 } __attribute__ ((packed));
  20
  21 #define VBE_MODE_VGACOMPAT      0x20
  22 #define VBE_MODE_COLOR          0x08
  23 #define VBE_MODE_SUPPORTEDHW    0x01
  24 #define VBE_MODE_GRAPHICS       0x10
  25 #define VBE_MODE_LFB            0x80
  26
  27 #define VBE_MODE_MASK           (VBE_MODE_COLOR | VBE_MODE_SUPPORTEDHW | \
  28                                 VBE_MODE_GRAPHICS | VBE_MODE_LFB)
  29
  30 /* VBE Mode Info Block */
  31 struct vbe_mode_ib {
  32         /* for all VBE revisions */
  33         u16 mode_attr;
  34         u8  winA_attr;
  35         u8  winB_attr;
  36         u16 win_granularity;
  37         u16 win_size;
  38         u16 winA_seg;
  39         u16 winB_seg;
  40         u32 win_func_ptr;
  41         u16 bytes_per_scan_line;
  42
  43         /* for VBE 1.2+ */
  44         u16 x_res;
  45         u16 y_res;
  46         u8  x_char_size;
  47         u8  y_char_size;
  48         u8  planes;
  49         u8  bits_per_pixel;
  50         u8  banks;
  51         u8  memory_model;
  52         u8  bank_size;
  53         u8  image_pages;
  54         u8  reserved1;
  55
  56         /* Direct color fields for direct/6 and YUV/7 memory models. */
  57         /* Offsets are bit positions of lsb in the mask. */
  58         u8  red_len;
  59         u8  red_off;
  60         u8  green_len;
  61         u8  green_off;
  62         u8  blue_len;
  63         u8  blue_off;
  64         u8  rsvd_len;
  65         u8  rsvd_off;
  66         u8  direct_color_info;  /* direct color mode attributes */
  67
  68         /* for VBE 2.0+ */
  69         u32 phys_base_ptr;
  70         u8  reserved2[6];
  71
  72         /* for VBE 3.0+ */
  73         u16 lin_bytes_per_scan_line;
  74         u8  bnk_image_pages;
  75         u8  lin_image_pages;
  76         u8  lin_red_len;
  77         u8  lin_red_off;
  78         u8  lin_green_len;
  79         u8  lin_green_off;
  80         u8  lin_blue_len;
  81         u8  lin_blue_off;
  82         u8  lin_rsvd_len;
  83         u8  lin_rsvd_off;
  84         u32 max_pixel_clock;
  85         u16 mode_id;
  86         u8  depth;
  87 } __attribute__ ((packed));
  88
  89 #define UVESAFB_DEFAULT_MODE "640x480-16"
  90
  91 /* How long to wait for a reply from userspace [ms] */
  92 #define UVESAFB_TIMEOUT 5000
  93
  94 /* Max number of concurrent tasks */
  95 #define UVESAFB_TASKS_MAX 16
  96
  97 #define dac_reg (0x3c8)
  98 #define dac_val (0x3c9)
  99
 100 struct uvesafb_pal_entry {
 101         u_char blue, green, red, pad;
 102 } __attribute__ ((packed));
 103
 104 struct uvesafb_ktask {
 105         struct uvesafb_task t;
 106         void *buf;
 107         struct completion *done;
 108         u32 ack;
 109 };
 110
 111 static int uvesafb_exec(struct uvesafb_ktask *tsk);
 112
 113 #define UVESAFB_EXACT_RES       1
 114 #define UVESAFB_EXACT_DEPTH     2
 115
 116 struct uvesafb_par {
 117         struct vbe_ib vbe_ib;           /* VBE Info Block */
 118         struct vbe_mode_ib *vbe_modes;  /* list of supported VBE modes */
 119         int vbe_modes_cnt;
 120
 121         u8 nocrtc;
 122         u8 ypan;                        /* 0 - nothing, 1 - ypan, 2 - ywrap */
 123         u8 pmi_setpal;                  /* PMI for palette changes */
 124         u16 *pmi_base;                  /* protected mode interface location */
 125         void *pmi_start;
 126         void *pmi_pal;
 127         u8 *vbe_state_orig;             /*
 128                                          * original hardware state, before the
 129                                          * driver was loaded
 130                                          */
 131         u8 *vbe_state_saved;            /* state saved by fb_save_state */
 132         int vbe_state_size;
 133         atomic_t ref_count;
 134
 135         int mode_idx;
 136         struct vbe_crtc_ib crtc;
 137 };
 138
 139 #endif /* _UVESAFB_H */