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1 | #ifndef _UVESAFB_H |
2 | #define _UVESAFB_H |
3 | |
4 | #include <linux/types.h> |
5 | |
6 | struct v86_regs { |
7 | __u32 ebx; |
8 | __u32 ecx; |
9 | __u32 edx; |
10 | __u32 esi; |
11 | __u32 edi; |
12 | __u32 ebp; |
13 | __u32 eax; |
14 | __u32 eip; |
15 | __u32 eflags; |
16 | __u32 esp; |
17 | __u16 cs; |
18 | __u16 ss; |
19 | __u16 es; |
20 | __u16 ds; |
21 | __u16 fs; |
22 | __u16 gs; |
23 | }; |
24 | |
25 | /* Task flags */ |
26 | #define TF_VBEIB 0x01 |
27 | #define TF_BUF_ESDI 0x02 |
28 | #define TF_BUF_ESBX 0x04 |
29 | #define TF_BUF_RET 0x08 |
30 | #define TF_EXIT 0x10 |
31 | |
32 | struct uvesafb_task { |
33 | __u8 flags; |
34 | int buf_len; |
35 | struct v86_regs regs; |
36 | }; |
37 | |
38 | /* Constants for the capabilities field |
39 | * in vbe_ib */ |
40 | #define VBE_CAP_CAN_SWITCH_DAC 0x01 |
41 | #define VBE_CAP_VGACOMPAT 0x02 |
42 | |
43 | /* The VBE Info Block */ |
44 | struct vbe_ib { |
45 | char vbe_signature[4]; |
46 | __u16 vbe_version; |
47 | __u32 oem_string_ptr; |
48 | __u32 capabilities; |
49 | __u32 mode_list_ptr; |
50 | __u16 total_memory; |
51 | __u16 oem_software_rev; |
52 | __u32 oem_vendor_name_ptr; |
53 | __u32 oem_product_name_ptr; |
54 | __u32 oem_product_rev_ptr; |
55 | __u8 reserved[222]; |
56 | char oem_data[256]; |
57 | char misc_data[512]; |
58 | } __attribute__ ((packed)); |
59 | |
60 | #ifdef __KERNEL__ |
61 | |
62 | /* VBE CRTC Info Block */ |
63 | struct vbe_crtc_ib { |
64 | u16 horiz_total; |
65 | u16 horiz_start; |
66 | u16 horiz_end; |
67 | u16 vert_total; |
68 | u16 vert_start; |
69 | u16 vert_end; |
70 | u8 flags; |
71 | u32 pixel_clock; |
72 | u16 refresh_rate; |
73 | u8 reserved[40]; |
74 | } __attribute__ ((packed)); |
75 | |
76 | #define VBE_MODE_VGACOMPAT 0x20 |
77 | #define VBE_MODE_COLOR 0x08 |
78 | #define VBE_MODE_SUPPORTEDHW 0x01 |
79 | #define VBE_MODE_GRAPHICS 0x10 |
80 | #define VBE_MODE_LFB 0x80 |
81 | |
82 | #define VBE_MODE_MASK (VBE_MODE_COLOR | VBE_MODE_SUPPORTEDHW | \ |
83 | VBE_MODE_GRAPHICS | VBE_MODE_LFB) |
84 | |
85 | /* VBE Mode Info Block */ |
86 | struct vbe_mode_ib { |
87 | /* for all VBE revisions */ |
88 | u16 mode_attr; |
89 | u8 winA_attr; |
90 | u8 winB_attr; |
91 | u16 win_granularity; |
92 | u16 win_size; |
93 | u16 winA_seg; |
94 | u16 winB_seg; |
95 | u32 win_func_ptr; |
96 | u16 bytes_per_scan_line; |
97 | |
98 | /* for VBE 1.2+ */ |
99 | u16 x_res; |
100 | u16 y_res; |
101 | u8 x_char_size; |
102 | u8 y_char_size; |
103 | u8 planes; |
104 | u8 bits_per_pixel; |
105 | u8 banks; |
106 | u8 memory_model; |
107 | u8 bank_size; |
108 | u8 image_pages; |
109 | u8 reserved1; |
110 | |
111 | /* Direct color fields for direct/6 and YUV/7 memory models. */ |
112 | /* Offsets are bit positions of lsb in the mask. */ |
113 | u8 red_len; |
114 | u8 red_off; |
115 | u8 green_len; |
116 | u8 green_off; |
117 | u8 blue_len; |
118 | u8 blue_off; |
119 | u8 rsvd_len; |
120 | u8 rsvd_off; |
121 | u8 direct_color_info; /* direct color mode attributes */ |
122 | |
123 | /* for VBE 2.0+ */ |
124 | u32 phys_base_ptr; |
125 | u8 reserved2[6]; |
126 | |
127 | /* for VBE 3.0+ */ |
128 | u16 lin_bytes_per_scan_line; |
129 | u8 bnk_image_pages; |
130 | u8 lin_image_pages; |
131 | u8 lin_red_len; |
132 | u8 lin_red_off; |
133 | u8 lin_green_len; |
134 | u8 lin_green_off; |
135 | u8 lin_blue_len; |
136 | u8 lin_blue_off; |
137 | u8 lin_rsvd_len; |
138 | u8 lin_rsvd_off; |
139 | u32 max_pixel_clock; |
140 | u16 mode_id; |
141 | u8 depth; |
142 | } __attribute__ ((packed)); |
143 | |
144 | #define UVESAFB_DEFAULT_MODE "640x480-16" |
145 | |
146 | /* How long to wait for a reply from userspace [ms] */ |
147 | #define UVESAFB_TIMEOUT 5000 |
148 | |
149 | /* Max number of concurrent tasks */ |
150 | #define UVESAFB_TASKS_MAX 16 |
151 | |
152 | #define dac_reg (0x3c8) |
153 | #define dac_val (0x3c9) |
154 | |
155 | struct uvesafb_pal_entry { |
156 | u_char blue, green, red, pad; |
157 | } __attribute__ ((packed)); |
158 | |
159 | struct uvesafb_ktask { |
160 | struct uvesafb_task t; |
161 | void *buf; |
162 | struct completion *done; |
163 | u32 ack; |
164 | }; |
165 | |
166 | static int uvesafb_exec(struct uvesafb_ktask *tsk); |
167 | |
168 | #define UVESAFB_EXACT_RES 1 |
169 | #define UVESAFB_EXACT_DEPTH 2 |
170 | |
171 | struct uvesafb_par { |
172 | struct vbe_ib vbe_ib; /* VBE Info Block */ |
173 | struct vbe_mode_ib *vbe_modes; /* list of supported VBE modes */ |
174 | int vbe_modes_cnt; |
175 | |
176 | u8 nocrtc; |
177 | u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */ |
178 | u8 pmi_setpal; /* PMI for palette changes */ |
179 | u16 *pmi_base; /* protected mode interface location */ |
180 | void *pmi_start; |
181 | void *pmi_pal; |
182 | u8 *vbe_state_orig; /* |
183 | * original hardware state, before the |
184 | * driver was loaded |
185 | */ |
186 | u8 *vbe_state_saved; /* state saved by fb_save_state */ |
187 | int vbe_state_size; |
188 | atomic_t ref_count; |
189 | |
190 | int mode_idx; |
191 | struct vbe_crtc_ib crtc; |
192 | }; |
193 | |
194 | #endif /* __KERNEL__ */ |
195 | #endif /* _UVESAFB_H */ |
196 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9