1 files changed, 198 insertions, 0 deletions

diff --git a/arch/arm/mach-rpc/include/mach/uncompress.h b/arch/arm/mach-rpc/include/mach/uncompress.h
new file mode 100644
index 00000000000..baa9c866d7b
--- /dev/null
+++ b/arch/arm/mach-rpc/include/mach/uncompress.h
@@ -0,0 +1,198 @@
+/*
+ *  arch/arm/mach-rpc/include/mach/uncompress.h
+ *
+ *  Copyright (C) 1996 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#define VIDMEM ((char *)SCREEN_START)
+ 
+#include <mach/hardware.h>
+#include <asm/io.h>
+#include <asm/setup.h>
+#include <asm/page.h>
+
+int video_size_row;
+unsigned char bytes_per_char_h;
+extern unsigned long con_charconvtable[256];
+
+struct param_struct {
+        unsigned long page_size;
+        unsigned long nr_pages;
+        unsigned long ramdisk_size;
+        unsigned long mountrootrdonly;
+        unsigned long rootdev;
+        unsigned long video_num_cols;
+        unsigned long video_num_rows;
+        unsigned long video_x;
+        unsigned long video_y;
+        unsigned long memc_control_reg;
+        unsigned char sounddefault;
+        unsigned char adfsdrives;
+        unsigned char bytes_per_char_h;
+        unsigned char bytes_per_char_v;
+        unsigned long unused[256/4-11];
+};
+
+static const unsigned long palette_4[16] = {
+        0x00000000,
+        0x000000cc,
+        0x0000cc00,             /* Green   */
+        0x0000cccc,             /* Yellow  */
+        0x00cc0000,             /* Blue    */
+        0x00cc00cc,             /* Magenta */
+        0x00cccc00,             /* Cyan    */
+        0x00cccccc,             /* White   */
+        0x00000000,
+        0x000000ff,
+        0x0000ff00,
+        0x0000ffff,
+        0x00ff0000,
+        0x00ff00ff,
+        0x00ffff00,
+        0x00ffffff
+};
+
+#define palette_setpixel(p)     *(unsigned long *)(IO_START+0x00400000) = 0x10000000|((p) & 255)
+#define palette_write(v)        *(unsigned long *)(IO_START+0x00400000) = 0x00000000|((v) & 0x00ffffff)
+
+/*
+ * params_phys is a linker defined symbol - see
+ * arch/arm/boot/compressed/Makefile
+ */
+extern __attribute__((pure)) struct param_struct *params(void);
+#define params (params())
+
+#ifndef STANDALONE_DEBUG 
+static unsigned long video_num_cols;
+static unsigned long video_num_rows;
+static unsigned long video_x;
+static unsigned long video_y;
+static unsigned char bytes_per_char_v;
+static int white;
+
+/*
+ * This does not append a newline
+ */
+static void putc(int c)
+{
+        extern void ll_write_char(char *, char c, char white);
+        int x,y;
+        char *ptr;
+
+        x = video_x;
+        y = video_y;
+
+        if (c == '\n') {
+                if (++y >= video_num_rows)
+                        y--;
+        } else if (c == '\r') {
+                x = 0;
+        } else {
+                ptr = VIDMEM + ((y*video_num_cols*bytes_per_char_v+x)*bytes_per_char_h);
+                ll_write_char(ptr, c, white);
+                if (++x >= video_num_cols) {
+                        x = 0;
+                        if ( ++y >= video_num_rows ) {
+                                y--;
+                        }
+                }
+        }
+
+        video_x = x;
+        video_y = y;
+}
+
+static inline void flush(void)
+{
+}
+
+static void error(char *x);
+
+/*
+ * Setup for decompression
+ */
+static void arch_decomp_setup(void)
+{
+        int i;
+        struct tag *t = (struct tag *)params;
+        unsigned int nr_pages = 0, page_size = PAGE_SIZE;
+
+        if (t->hdr.tag == ATAG_CORE)
+        {
+                for (; t->hdr.size; t = tag_next(t))
+                {
+                        if (t->hdr.tag == ATAG_VIDEOTEXT)
+                        {
+                                video_num_rows = t->u.videotext.video_lines;
+                                video_num_cols = t->u.videotext.video_cols;
+                                bytes_per_char_h = t->u.videotext.video_points;
+                                bytes_per_char_v = t->u.videotext.video_points;
+                                video_x = t->u.videotext.x;
+                                video_y = t->u.videotext.y;
+                        }
+
+                        if (t->hdr.tag == ATAG_MEM)
+                        {
+                                page_size = PAGE_SIZE;
+                                nr_pages += (t->u.mem.size / PAGE_SIZE);
+                        }
+                }
+        }
+        else
+        {
+                nr_pages = params->nr_pages;
+                page_size = params->page_size;
+                video_num_rows = params->video_num_rows;
+                video_num_cols = params->video_num_cols;
+                video_x = params->video_x;
+                video_y = params->video_y;
+                bytes_per_char_h = params->bytes_per_char_h;
+                bytes_per_char_v = params->bytes_per_char_v;
+        }
+
+        video_size_row = video_num_cols * bytes_per_char_h;
+        
+        if (bytes_per_char_h == 4)
+                for (i = 0; i < 256; i++)
+                        con_charconvtable[i] =
+                                (i & 128 ? 1 << 0  : 0) |
+                                (i & 64  ? 1 << 4  : 0) |
+                                (i & 32  ? 1 << 8  : 0) |
+                                (i & 16  ? 1 << 12 : 0) |
+                                (i & 8   ? 1 << 16 : 0) |
+                                (i & 4   ? 1 << 20 : 0) |
+                                (i & 2   ? 1 << 24 : 0) |
+                                (i & 1   ? 1 << 28 : 0);
+        else
+                for (i = 0; i < 16; i++)
+                        con_charconvtable[i] =
+                                (i & 8   ? 1 << 0  : 0) |
+                                (i & 4   ? 1 << 8  : 0) |
+                                (i & 2   ? 1 << 16 : 0) |
+                                (i & 1   ? 1 << 24 : 0);
+
+
+        palette_setpixel(0);
+        if (bytes_per_char_h == 1) {
+                palette_write (0);
+                palette_write (0x00ffffff);
+                for (i = 2; i < 256; i++)
+                        palette_write (0);
+                white = 1;
+        } else {
+                for (i = 0; i < 256; i++)
+                        palette_write (i < 16 ? palette_4[i] : 0);
+                white = 7;
+        }
+
+        if (nr_pages * page_size < 4096*1024) error("<4M of mem\n");
+}
+#endif
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_wdog()