| Michal Januszewski | 8bdb3a2 | 2007-10-16 01:28:26 -0700 | [diff] [blame] | 1 | #ifndef _UVESAFB_H |
| 2 | #define _UVESAFB_H |
| 3 | |
| 4 | struct v86_regs { |
| 5 | __u32 ebx; |
| 6 | __u32 ecx; |
| 7 | __u32 edx; |
| 8 | __u32 esi; |
| 9 | __u32 edi; |
| 10 | __u32 ebp; |
| 11 | __u32 eax; |
| 12 | __u32 eip; |
| 13 | __u32 eflags; |
| 14 | __u32 esp; |
| 15 | __u16 cs; |
| 16 | __u16 ss; |
| 17 | __u16 es; |
| 18 | __u16 ds; |
| 19 | __u16 fs; |
| 20 | __u16 gs; |
| 21 | }; |
| 22 | |
| 23 | /* Task flags */ |
| 24 | #define TF_VBEIB 0x01 |
| 25 | #define TF_BUF_ESDI 0x02 |
| 26 | #define TF_BUF_ESBX 0x04 |
| 27 | #define TF_BUF_RET 0x08 |
| 28 | #define TF_EXIT 0x10 |
| 29 | |
| 30 | struct uvesafb_task { |
| 31 | __u8 flags; |
| 32 | int buf_len; |
| 33 | struct v86_regs regs; |
| 34 | }; |
| 35 | |
| 36 | /* Constants for the capabilities field |
| 37 | * in vbe_ib */ |
| 38 | #define VBE_CAP_CAN_SWITCH_DAC 0x01 |
| 39 | #define VBE_CAP_VGACOMPAT 0x02 |
| 40 | |
| 41 | /* The VBE Info Block */ |
| 42 | struct vbe_ib { |
| 43 | char vbe_signature[4]; |
| 44 | __u16 vbe_version; |
| 45 | __u32 oem_string_ptr; |
| 46 | __u32 capabilities; |
| 47 | __u32 mode_list_ptr; |
| 48 | __u16 total_memory; |
| 49 | __u16 oem_software_rev; |
| 50 | __u32 oem_vendor_name_ptr; |
| 51 | __u32 oem_product_name_ptr; |
| 52 | __u32 oem_product_rev_ptr; |
| 53 | __u8 reserved[222]; |
| 54 | char oem_data[256]; |
| 55 | char misc_data[512]; |
| 56 | } __attribute__ ((packed)); |
| 57 | |
| 58 | #ifdef __KERNEL__ |
| 59 | |
| 60 | /* VBE CRTC Info Block */ |
| 61 | struct vbe_crtc_ib { |
| 62 | u16 horiz_total; |
| 63 | u16 horiz_start; |
| 64 | u16 horiz_end; |
| 65 | u16 vert_total; |
| 66 | u16 vert_start; |
| 67 | u16 vert_end; |
| 68 | u8 flags; |
| 69 | u32 pixel_clock; |
| 70 | u16 refresh_rate; |
| 71 | u8 reserved[40]; |
| 72 | } __attribute__ ((packed)); |
| 73 | |
| 74 | #define VBE_MODE_VGACOMPAT 0x20 |
| 75 | #define VBE_MODE_COLOR 0x08 |
| 76 | #define VBE_MODE_SUPPORTEDHW 0x01 |
| 77 | #define VBE_MODE_GRAPHICS 0x10 |
| 78 | #define VBE_MODE_LFB 0x80 |
| 79 | |
| 80 | #define VBE_MODE_MASK (VBE_MODE_COLOR | VBE_MODE_SUPPORTEDHW | \ |
| 81 | VBE_MODE_GRAPHICS | VBE_MODE_LFB) |
| 82 | |
| 83 | /* VBE Mode Info Block */ |
| 84 | struct vbe_mode_ib { |
| 85 | /* for all VBE revisions */ |
| 86 | u16 mode_attr; |
| 87 | u8 winA_attr; |
| 88 | u8 winB_attr; |
| 89 | u16 win_granularity; |
| 90 | u16 win_size; |
| 91 | u16 winA_seg; |
| 92 | u16 winB_seg; |
| 93 | u32 win_func_ptr; |
| 94 | u16 bytes_per_scan_line; |
| 95 | |
| 96 | /* for VBE 1.2+ */ |
| 97 | u16 x_res; |
| 98 | u16 y_res; |
| 99 | u8 x_char_size; |
| 100 | u8 y_char_size; |
| 101 | u8 planes; |
| 102 | u8 bits_per_pixel; |
| 103 | u8 banks; |
| 104 | u8 memory_model; |
| 105 | u8 bank_size; |
| 106 | u8 image_pages; |
| 107 | u8 reserved1; |
| 108 | |
| 109 | /* Direct color fields for direct/6 and YUV/7 memory models. */ |
| 110 | /* Offsets are bit positions of lsb in the mask. */ |
| 111 | u8 red_len; |
| 112 | u8 red_off; |
| 113 | u8 green_len; |
| 114 | u8 green_off; |
| 115 | u8 blue_len; |
| 116 | u8 blue_off; |
| 117 | u8 rsvd_len; |
| 118 | u8 rsvd_off; |
| 119 | u8 direct_color_info; /* direct color mode attributes */ |
| 120 | |
| 121 | /* for VBE 2.0+ */ |
| 122 | u32 phys_base_ptr; |
| 123 | u8 reserved2[6]; |
| 124 | |
| 125 | /* for VBE 3.0+ */ |
| 126 | u16 lin_bytes_per_scan_line; |
| 127 | u8 bnk_image_pages; |
| 128 | u8 lin_image_pages; |
| 129 | u8 lin_red_len; |
| 130 | u8 lin_red_off; |
| 131 | u8 lin_green_len; |
| 132 | u8 lin_green_off; |
| 133 | u8 lin_blue_len; |
| 134 | u8 lin_blue_off; |
| 135 | u8 lin_rsvd_len; |
| 136 | u8 lin_rsvd_off; |
| 137 | u32 max_pixel_clock; |
| 138 | u16 mode_id; |
| 139 | u8 depth; |
| 140 | } __attribute__ ((packed)); |
| 141 | |
| 142 | #define UVESAFB_DEFAULT_MODE "640x480-16" |
| 143 | |
| 144 | /* How long to wait for a reply from userspace [ms] */ |
| 145 | #define UVESAFB_TIMEOUT 5000 |
| 146 | |
| 147 | /* Max number of concurrent tasks */ |
| 148 | #define UVESAFB_TASKS_MAX 16 |
| 149 | |
| 150 | #define dac_reg (0x3c8) |
| 151 | #define dac_val (0x3c9) |
| 152 | |
| 153 | struct uvesafb_pal_entry { |
| 154 | u_char blue, green, red, pad; |
| 155 | } __attribute__ ((packed)); |
| 156 | |
| 157 | struct uvesafb_ktask { |
| 158 | struct uvesafb_task t; |
| 159 | void *buf; |
| 160 | struct completion *done; |
| 161 | u32 ack; |
| 162 | }; |
| 163 | |
| 164 | static int uvesafb_exec(struct uvesafb_ktask *tsk); |
| 165 | |
| 166 | #define UVESAFB_EXACT_RES 1 |
| 167 | #define UVESAFB_EXACT_DEPTH 2 |
| 168 | |
| 169 | struct uvesafb_par { |
| 170 | struct vbe_ib vbe_ib; /* VBE Info Block */ |
| 171 | struct vbe_mode_ib *vbe_modes; /* list of supported VBE modes */ |
| 172 | int vbe_modes_cnt; |
| 173 | |
| 174 | u8 nocrtc; |
| 175 | u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */ |
| 176 | u8 pmi_setpal; /* PMI for palette changes */ |
| 177 | u16 *pmi_base; /* protected mode interface location */ |
| 178 | void *pmi_start; |
| 179 | void *pmi_pal; |
| 180 | u8 *vbe_state_orig; /* |
| 181 | * original hardware state, before the |
| 182 | * driver was loaded |
| 183 | */ |
| 184 | u8 *vbe_state_saved; /* state saved by fb_save_state */ |
| 185 | int vbe_state_size; |
| 186 | atomic_t ref_count; |
| 187 | |
| 188 | int mode_idx; |
| 189 | struct vbe_crtc_ib crtc; |
| 190 | }; |
| 191 | |
| 192 | #endif /* __KERNEL__ */ |
| 193 | #endif /* _UVESAFB_H */ |