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1.1 root 1: /*
2: * This file describes the structure passed from the BootX application
3: * (for MacOS) when it is used to boot Linux.
4: *
5: * Written by Benjamin Herrenschmidt.
6: *
7: * Move to LinuxBIOS by LYH [email protected]
8: *
9: */
10:
11:
12: #ifndef _BTEXT_H__
13: #define _BTEXT_H__
14:
15: #if 1
16: #define u32 unsigned int
17: #define u16 unsigned short
18: #define u8 unsigned char
19: #endif
20:
21: /* Here are the boot informations that are passed to the bootstrap
22: * Note that the kernel arguments and the device tree are appended
23: * at the end of this structure. */
24: typedef struct boot_infos
25: {
26:
27: /* NEW (vers. 2) this holds the current _logical_ base addr of
28: the frame buffer (for use by early boot message) */
29: u8* logicalDisplayBase;
30:
31:
32: /* Some infos about the current MacOS display */
33: u32 dispDeviceRect[4]; /* left,top,right,bottom */
34: u32 dispDeviceDepth; /* (8, 16 or 32) */
35: u32 dispDeviceBase; /* base address (physical) */
36: u32 dispDeviceRowBytes; /* rowbytes (in bytes) */
37: u32 dispDeviceColorsOffset; /* Colormap (8 bits only) or 0 (*) */
38:
39:
40: /* The framebuffer size (optional, currently 0) */
41: u32 frameBufferSize; /* Represents a max size, can be 0. */
42:
43:
44: } boot_infos_t;
45:
46: /* (*) The format of the colormap is 256 * 3 * 2 bytes. Each color index is represented
47: * by 3 short words containing a 16 bits (unsigned) color component.
48: * Later versions may contain the gamma table for direct-color devices here.
49: */
50: #define BOOTX_COLORTABLE_SIZE (256UL*3UL*2UL)
51:
52:
53: /*
54: * Definitions for using the procedures in btext.c.
55: *
56: * Benjamin Herrenschmidt <[email protected]>
57: */
58:
59: extern boot_infos_t disp_bi;
60: extern u32 boot_text_mapped;
61:
62: #endif /* _BTEXT_H */
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