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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>
#ifdef CONFIG_LCD
#include <lcd.h>
#endif
#ifdef CONFIG_CFB_CONSOLE
#include <video.h>
#endif
#include <chromeos/common.h>
#include <lzma/LzmaTypes.h>
#include <lzma/LzmaDec.h>
#include <lzma/LzmaTools.h>
#define PRINT_MAX_ROW 20
#define PRINT_MAX_COL 80
DECLARE_GLOBAL_DATA_PTR;
struct display_callbacks {
int (*dc_get_pixel_width) (void);
int (*dc_get_pixel_height) (void);
int (*dc_get_screen_columns) (void);
int (*dc_get_screen_rows) (void);
void (*dc_position_cursor) (unsigned col, unsigned row);
void (*dc_puts) (const char *s);
int (*dc_display_bitmap) (ulong, int, int);
int (*dc_display_clear) (void);
};
static struct display_callbacks display_callbacks_ = {
#ifdef CONFIG_LCD
.dc_get_pixel_width = lcd_get_pixel_width,
.dc_get_pixel_height = lcd_get_pixel_height,
.dc_get_screen_columns = lcd_get_screen_columns,
.dc_get_screen_rows = lcd_get_screen_rows,
.dc_position_cursor = lcd_position_cursor,
.dc_puts = lcd_puts,
.dc_display_bitmap = lcd_display_bitmap,
.dc_display_clear = lcd_clear,
#else
.dc_get_pixel_width = video_get_pixel_width,
.dc_get_pixel_height = video_get_pixel_height,
.dc_get_screen_columns = video_get_screen_columns,
.dc_get_screen_rows = video_get_screen_rows,
.dc_position_cursor = video_position_cursor,
.dc_puts = video_puts,
.dc_display_bitmap = video_display_bitmap,
.dc_display_clear = video_clear
#endif
};
VbError_t VbExDisplayInit(uint32_t *width, uint32_t *height)
{
*width = display_callbacks_.dc_get_pixel_width();
*height = display_callbacks_.dc_get_pixel_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)
{
int i, room_before_text;
int screen_size = display_callbacks_.dc_get_screen_columns() *
display_callbacks_.dc_get_screen_rows();
int text_length = strlen(message);
room_before_text = (screen_size - text_length) / 2;
display_callbacks_.dc_position_cursor(0, 0);
for (i = 0; i < room_before_text; i++)
display_callbacks_.dc_puts(".");
display_callbacks_.dc_puts(message);
for (i = i + text_length; i < screen_size; i++)
display_callbacks_.dc_puts(".");
}
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:
/* clear the screen */
display_clear();
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 = display_callbacks_.dc_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)
{
display_callbacks_.dc_position_cursor(0, 0);
display_callbacks_.dc_puts(info_str);
return VBERROR_SUCCESS;
}
/* this function is not technically part of the vboot interface */
int display_clear(void)
{
return display_callbacks_.dc_display_clear();
}
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