| 1 | /*
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| 2 | * This file describes the structure passed from the BootX application
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| 3 | * (for MacOS) when it is used to boot Linux.
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| 4 | *
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| 5 | * Written by Benjamin Herrenschmidt.
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| 6 | *
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| 7 | * Move to LinuxBIOS by LYH [email protected]
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| 8 | *
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| 9 | */
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| 10 |
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| 11 |
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| 12 | #ifndef _BTEXT_H__
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| 13 | #define _BTEXT_H__
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| 14 |
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| 15 | #if 1
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| 16 | #define u32 unsigned int
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| 17 | #define u16 unsigned short
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| 18 | #define u8 unsigned char
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| 19 | #endif
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| 20 |
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| 21 | /* Here are the boot informations that are passed to the bootstrap
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| 22 | * Note that the kernel arguments and the device tree are appended
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| 23 | * at the end of this structure. */
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| 24 | typedef struct boot_infos
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| 25 | {
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| 26 |
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| 27 | /* NEW (vers. 2) this holds the current _logical_ base addr of
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| 28 | the frame buffer (for use by early boot message) */
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| 29 | u8* logicalDisplayBase;
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| 30 |
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| 31 |
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| 32 | /* Some infos about the current MacOS display */
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| 33 | u32 dispDeviceRect[4]; /* left,top,right,bottom */
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| 34 | u32 dispDeviceDepth; /* (8, 16 or 32) */
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| 35 | u8* dispDeviceBase; /* base address (physical) */
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| 36 | u32 dispDeviceRowBytes; /* rowbytes (in bytes) */
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| 37 | u32 dispDeviceColorsOffset; /* Colormap (8 bits only) or 0 (*) */
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| 38 |
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| 39 |
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| 40 | /* The framebuffer size (optional, currently 0) */
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| 41 | u32 frameBufferSize; /* Represents a max size, can be 0. */
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| 42 |
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| 43 |
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| 44 | } boot_infos_t;
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| 45 |
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| 46 | /* (*) The format of the colormap is 256 * 3 * 2 bytes. Each color index is represented
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| 47 | * by 3 short words containing a 16 bits (unsigned) color component.
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| 48 | * Later versions may contain the gamma table for direct-color devices here.
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| 49 | */
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| 50 | #define BOOTX_COLORTABLE_SIZE (256UL*3UL*2UL)
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| 51 |
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| 52 |
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| 53 | /*
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| 54 | * Definitions for using the procedures in btext.c.
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| 55 | *
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| 56 | * Benjamin Herrenschmidt <[email protected]>
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| 57 | */
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| 58 |
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| 59 | extern void btext_clearscreen(void);
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| 60 |
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| 61 | extern boot_infos_t disp_bi;
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| 62 | extern u32 boot_text_mapped;
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| 63 |
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| 64 | void btext_setup_display(u32 width, u32 height, u32 depth, u32 pitch,
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| 65 | unsigned long address);
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| 66 | void map_boot_text(void);
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| 67 |
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| 68 | void btext_drawchar(char c);
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| 69 | void btext_drawstring(const char *str);
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| 70 | void btext_drawhex(u32 v);
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| 71 |
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| 72 | void btext_putc(int c);
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| 73 |
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| 74 | void btext_init(void);
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| 75 |
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| 76 | #endif /* _BTEXT_H */
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