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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _UVESAFB_H3#define _UVESAFB_H4 5#include <uapi/video/uvesafb.h>6 7 8/* VBE CRTC Info Block */9struct vbe_crtc_ib {10 u16 horiz_total;11 u16 horiz_start;12 u16 horiz_end;13 u16 vert_total;14 u16 vert_start;15 u16 vert_end;16 u8 flags;17 u32 pixel_clock;18 u16 refresh_rate;19 u8 reserved[40];20} __attribute__ ((packed));21 22#define VBE_MODE_VGACOMPAT 0x2023#define VBE_MODE_COLOR 0x0824#define VBE_MODE_SUPPORTEDHW 0x0125#define VBE_MODE_GRAPHICS 0x1026#define VBE_MODE_LFB 0x8027 28#define VBE_MODE_MASK (VBE_MODE_COLOR | VBE_MODE_SUPPORTEDHW | \29 VBE_MODE_GRAPHICS | VBE_MODE_LFB)30 31/* VBE Mode Info Block */32struct vbe_mode_ib {33 /* for all VBE revisions */34 u16 mode_attr;35 u8 winA_attr;36 u8 winB_attr;37 u16 win_granularity;38 u16 win_size;39 u16 winA_seg;40 u16 winB_seg;41 u32 win_func_ptr;42 u16 bytes_per_scan_line;43 44 /* for VBE 1.2+ */45 u16 x_res;46 u16 y_res;47 u8 x_char_size;48 u8 y_char_size;49 u8 planes;50 u8 bits_per_pixel;51 u8 banks;52 u8 memory_model;53 u8 bank_size;54 u8 image_pages;55 u8 reserved1;56 57 /* Direct color fields for direct/6 and YUV/7 memory models. */58 /* Offsets are bit positions of lsb in the mask. */59 u8 red_len;60 u8 red_off;61 u8 green_len;62 u8 green_off;63 u8 blue_len;64 u8 blue_off;65 u8 rsvd_len;66 u8 rsvd_off;67 u8 direct_color_info; /* direct color mode attributes */68 69 /* for VBE 2.0+ */70 u32 phys_base_ptr;71 u8 reserved2[6];72 73 /* for VBE 3.0+ */74 u16 lin_bytes_per_scan_line;75 u8 bnk_image_pages;76 u8 lin_image_pages;77 u8 lin_red_len;78 u8 lin_red_off;79 u8 lin_green_len;80 u8 lin_green_off;81 u8 lin_blue_len;82 u8 lin_blue_off;83 u8 lin_rsvd_len;84 u8 lin_rsvd_off;85 u32 max_pixel_clock;86 u16 mode_id;87 u8 depth;88} __attribute__ ((packed));89 90#define UVESAFB_DEFAULT_MODE "640x480-16"91 92/* How long to wait for a reply from userspace [ms] */93#define UVESAFB_TIMEOUT 500094 95/* Max number of concurrent tasks */96#define UVESAFB_TASKS_MAX 1697 98#define dac_reg (0x3c8)99#define dac_val (0x3c9)100 101struct uvesafb_pal_entry {102 u_char blue, green, red, pad;103} __attribute__ ((packed));104 105struct uvesafb_ktask {106 struct uvesafb_task t;107 void *buf;108 struct completion *done;109 u32 ack;110};111 112#define UVESAFB_EXACT_RES 1113#define UVESAFB_EXACT_DEPTH 2114 115struct uvesafb_par {116 struct vbe_ib vbe_ib; /* VBE Info Block */117 struct vbe_mode_ib *vbe_modes; /* list of supported VBE modes */118 int vbe_modes_cnt;119 120 u8 nocrtc;121 u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */122 u8 pmi_setpal; /* PMI for palette changes */123 u16 *pmi_base; /* protected mode interface location */124 void *pmi_start;125 void *pmi_pal;126 u8 *vbe_state_orig; /*127 * original hardware state, before the128 * driver was loaded129 */130 u8 *vbe_state_saved; /* state saved by fb_save_state */131 int vbe_state_size;132 atomic_t ref_count;133 134 int mode_idx;135 struct vbe_crtc_ib crtc;136 int mtrr_handle;137};138 139#endif /* _UVESAFB_H */140