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8bdb3a2d MJ |
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 */ |