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/*
* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*/
#include <common.h>
#include <fdt_decode.h>
#include <lcd.h>
#include <chromeos/common.h>
#include <lzma/LzmaTypes.h>
#include <lzma/LzmaDec.h>
#include <lzma/LzmaTools.h>
/* Import the header files from vboot_reference */
#include <vboot_api.h>
#define PRINT_MAX_ROW 20
#define PRINT_MAX_COL 80
DECLARE_GLOBAL_DATA_PTR;
/* Defined in common/lcd.c */
extern int lcd_display_bitmap (ulong, int, int);
VbError_t VbExDisplayInit(uint32_t *width, uint32_t *height)
{
struct fdt_lcd config;
/* Get LCD details from FDT */
if (fdt_decode_lcd(gd->blob, &config)) {
VBDEBUG("No LCD information in device tree.\n");
return 1;
}
*width = config.width;
*height = config.height;
return VBERROR_SUCCESS;
}
VbError_t VbExDisplayBacklight(uint8_t enable)
{
/* TODO(waihong@chromium.org) Implement it later */
return VBERROR_SUCCESS;
}
/* Print the message on the center of LCD. */
static void print_on_center(const char *message)
{
char result[PRINT_MAX_ROW * (PRINT_MAX_COL + 1) + 1] = "\0";
int i, j, left_space, right_space;
for (i = 0; i < PRINT_MAX_ROW / 2 - 1; i++) {
for (j = 0; j < PRINT_MAX_COL; j++)
strcat(result, ".");
strcat(result, "\n");
}
left_space = (PRINT_MAX_COL - strlen(message)) / 2;
for (i = 0; i < left_space; i++)
strcat(result, ".");
strcat(result, message);
right_space = PRINT_MAX_COL - strlen(message) - left_space;
for (i = 0; i < right_space; i++)
strcat(result, ".");
strcat(result, "\n");
for (i = 0; i < PRINT_MAX_ROW - PRINT_MAX_ROW / 2; i++) {
for (j = 0; j < PRINT_MAX_COL; j++)
strcat(result, ".");
strcat(result, "\n");
}
VbExDisplayDebugInfo(result);
}
VbError_t VbExDisplayScreen(uint32_t screen_type)
{
/*
* Show the debug messages for development. It is a backup method
* when GBB does not contain a full set of bitmaps.
*/
switch (screen_type) {
case VB_SCREEN_BLANK:
print_on_center("");
break;
case VB_SCREEN_DEVELOPER_WARNING:
print_on_center("developer mode warning");
break;
case VB_SCREEN_DEVELOPER_EGG:
print_on_center("easter egg");
break;
case VB_SCREEN_RECOVERY_REMOVE:
print_on_center("remove inserted devices");
break;
case VB_SCREEN_RECOVERY_INSERT:
print_on_center("insert recovery image");
break;
case VB_SCREEN_RECOVERY_NO_GOOD:
print_on_center("insert image invalid");
break;
default:
VBDEBUG("Not a valid screen type: %08x.\n",
screen_type);
return 1;
}
return VBERROR_SUCCESS;
}
static uint8_t *uncompress_lzma(uint8_t *in_addr, SizeT in_size,
SizeT out_size)
{
uint8_t *out_addr = VbExMalloc(out_size);
SizeT lzma_len = out_size;
int ret;
ret = lzmaBuffToBuffDecompress(out_addr, &lzma_len, in_addr, in_size);
if (ret != SZ_OK) {
VbExFree(out_addr);
out_addr = NULL;
}
return out_addr;
}
VbError_t VbExDisplayImage(uint32_t x, uint32_t y, const ImageInfo *info,
const void *buffer)
{
int ret;
uint8_t *raw_data;
switch (info->compression) {
case COMPRESS_NONE:
raw_data = (uint8_t *)buffer;
break;
case COMPRESS_LZMA1:
raw_data = uncompress_lzma((uint8_t *)buffer,
(SizeT)info->compressed_size,
(SizeT)info->original_size);
if (!raw_data) {
VBDEBUG("LZMA decompress failed.\n");
return 1;
}
break;
default:
VBDEBUG("Unsupported compression format: %08x\n",
info->compression);
return 1;
}
ret = lcd_display_bitmap((ulong)raw_data, x, y);
if (info->compression == COMPRESS_LZMA1)
VbExFree(raw_data);
if (ret) {
VBDEBUG("LCD display error.\n");
return 1;
}
return VBERROR_SUCCESS;
}
VbError_t VbExDisplayDebugInfo(const char *info_str)
{
/* Show the debug message on the upper left corner */
console_col = 0;
console_row = 0;
lcd_puts(info_str);
return VBERROR_SUCCESS;
}
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