1 files changed, 72 insertions, 0 deletions
diff --git a/src/include/console/btext.h b/src/include/console/btext.h
new file mode 100644
index 0000000000..d184a4bf35
--- /dev/null
+++ b/src/include/console/btext.h
@@ -0,0 +1,72 @@
+/*
+ * This file describes the structure passed from the BootX application
+ * (for MacOS) when it is used to boot Linux.
+ *
+ * Written by Benjamin Herrenschmidt.
+ *  
+ * Move to LinuxBIOS by LYH  yhlu@tyan.com
+ *
+ */
+
+
+#ifndef _BTEXT_H__
+#define _BTEXT_H__
+
+#define u32 uint32_t
+#define u16 uint16_t
+#define u8 uint8_t
+
+/* Here are the boot informations that are passed to the bootstrap
+ * Note that the kernel arguments and the device tree are appended
+ * at the end of this structure. */
+typedef struct boot_infos
+{
+
+    /* NEW (vers. 2) this holds the current _logical_ base addr of
+       the frame buffer (for use by early boot message) */
+    u8*       logicalDisplayBase;
+
+
+    /* Some infos about the current MacOS display */
+    u32       dispDeviceRect[4];       /* left,top,right,bottom */
+    u32       dispDeviceDepth;         /* (8, 16 or 32) */
+    u8*       dispDeviceBase;          /* base address (physical) */
+    u32       dispDeviceRowBytes;      /* rowbytes (in bytes) */
+    u32       dispDeviceColorsOffset;  /* Colormap (8 bits only) or 0 (*) */
+
+
+    /* The framebuffer size (optional, currently 0) */
+    u32       frameBufferSize;         /* Represents a max size, can be 0. */
+
+
+} boot_infos_t;
+
+/* (*) The format of the colormap is 256 * 3 * 2 bytes. Each color index is represented
+ * by 3 short words containing a 16 bits (unsigned) color component.
+ * Later versions may contain the gamma table for direct-color devices here.
+ */
+#define BOOTX_COLORTABLE_SIZE    (256UL*3UL*2UL)
+
+
+/*
+ * Definitions for using the procedures in btext.c.
+ *
+ * Benjamin Herrenschmidt <benh@kernel.crashing.org>
+ */
+
+extern void btext_clearscreen(void);
+
+extern boot_infos_t disp_bi;
+extern u32 boot_text_mapped;
+
+void btext_setup_display(u32 width, u32 height, u32 depth, u32 pitch,
+			 unsigned long address);
+void map_boot_text(void);
+void btext_update_display(unsigned long phys, u32 width, u32 height,
+			  u32 depth, u32 pitch);
+
+void btext_drawchar(char c);
+void btext_drawstring(const char *str);
+void btext_drawhex(u32 v);
+
+#endif /* _BTEXT_H */