1#ifndef _UVESAFB_H 2#define _UVESAFB_H 3 4#include <uapi/video/uvesafb.h> 5 6 7/* VBE CRTC Info Block */ 8struct 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 */ 31struct 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 100struct uvesafb_pal_entry { 101 u_char blue, green, red, pad; 102} __attribute__ ((packed)); 103 104struct uvesafb_ktask { 105 struct uvesafb_task t; 106 void *buf; 107 struct completion *done; 108 u32 ack; 109}; 110 111static int uvesafb_exec(struct uvesafb_ktask *tsk); 112 113#define UVESAFB_EXACT_RES 1 114#define UVESAFB_EXACT_DEPTH 2 115 116struct 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 int mtrr_handle; 138}; 139 140#endif /* _UVESAFB_H */ 141