a081568d70
As per the corresponding change to the serial drivers, arrange for ARM decompressors to give CRLF. Move the common putstr code into misc.c such that machines only need to supply "putc" and "flush" functions. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
157 lines
3.5 KiB
C
157 lines
3.5 KiB
C
/*
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* linux/include/asm-arm/arch-rpc/uncompress.h
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*
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* Copyright (C) 1996 Russell King
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#define VIDMEM ((char *)SCREEN_START)
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#include <asm/hardware.h>
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#include <asm/io.h>
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int video_num_columns, video_num_lines, video_size_row;
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int white, bytes_per_char_h;
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extern unsigned long con_charconvtable[256];
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struct param_struct {
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unsigned long page_size;
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unsigned long nr_pages;
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unsigned long ramdisk_size;
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unsigned long mountrootrdonly;
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unsigned long rootdev;
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unsigned long video_num_cols;
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unsigned long video_num_rows;
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unsigned long video_x;
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unsigned long video_y;
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unsigned long memc_control_reg;
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unsigned char sounddefault;
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unsigned char adfsdrives;
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unsigned char bytes_per_char_h;
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unsigned char bytes_per_char_v;
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unsigned long unused[256/4-11];
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};
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static const unsigned long palette_4[16] = {
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0x00000000,
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0x000000cc,
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0x0000cc00, /* Green */
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0x0000cccc, /* Yellow */
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0x00cc0000, /* Blue */
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0x00cc00cc, /* Magenta */
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0x00cccc00, /* Cyan */
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0x00cccccc, /* White */
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0x00000000,
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0x000000ff,
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0x0000ff00,
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0x0000ffff,
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0x00ff0000,
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0x00ff00ff,
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0x00ffff00,
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0x00ffffff
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};
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#define palette_setpixel(p) *(unsigned long *)(IO_START+0x00400000) = 0x10000000|((p) & 255)
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#define palette_write(v) *(unsigned long *)(IO_START+0x00400000) = 0x00000000|((v) & 0x00ffffff)
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/*
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* params_phys is a linker defined symbol - see
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* arch/arm/boot/compressed/Makefile
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*/
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extern __attribute__((pure)) struct param_struct *params(void);
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#define params (params())
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#ifndef STANDALONE_DEBUG
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/*
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* This does not append a newline
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*/
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static void putc(int c)
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{
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extern void ll_write_char(char *, char c, char white);
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int x,y;
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char *ptr;
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x = params->video_x;
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y = params->video_y;
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if (c == '\n') {
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if (++y >= video_num_lines)
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y--;
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} else if (c == '\r') {
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x = 0;
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} else {
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ptr = VIDMEM + ((y*video_num_columns*params->bytes_per_char_v+x)*bytes_per_char_h);
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ll_write_char(ptr, c, white);
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if (++x >= video_num_columns) {
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x = 0;
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if ( ++y >= video_num_lines ) {
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y--;
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}
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}
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}
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params->video_x = x;
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params->video_y = y;
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}
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static inline void flush(void)
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{
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}
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static void error(char *x);
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/*
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* Setup for decompression
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*/
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static void arch_decomp_setup(void)
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{
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int i;
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video_num_lines = params->video_num_rows;
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video_num_columns = params->video_num_cols;
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bytes_per_char_h = params->bytes_per_char_h;
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video_size_row = video_num_columns * bytes_per_char_h;
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if (bytes_per_char_h == 4)
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for (i = 0; i < 256; i++)
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con_charconvtable[i] =
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(i & 128 ? 1 << 0 : 0) |
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(i & 64 ? 1 << 4 : 0) |
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(i & 32 ? 1 << 8 : 0) |
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(i & 16 ? 1 << 12 : 0) |
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(i & 8 ? 1 << 16 : 0) |
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(i & 4 ? 1 << 20 : 0) |
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(i & 2 ? 1 << 24 : 0) |
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(i & 1 ? 1 << 28 : 0);
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else
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for (i = 0; i < 16; i++)
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con_charconvtable[i] =
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(i & 8 ? 1 << 0 : 0) |
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(i & 4 ? 1 << 8 : 0) |
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(i & 2 ? 1 << 16 : 0) |
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(i & 1 ? 1 << 24 : 0);
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palette_setpixel(0);
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if (bytes_per_char_h == 1) {
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palette_write (0);
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palette_write (0x00ffffff);
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for (i = 2; i < 256; i++)
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palette_write (0);
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white = 1;
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} else {
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for (i = 0; i < 256; i++)
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palette_write (i < 16 ? palette_4[i] : 0);
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white = 7;
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}
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if (params->nr_pages * params->page_size < 4096*1024) error("<4M of mem\n");
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}
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#endif
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/*
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* nothing to do
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*/
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#define arch_decomp_wdog()
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