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- add missing image handling files 

git-svn-id: svn://svn.berlios.de/openocd/trunk@156 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
drath 2007-05-29 12:04:20 +00:00
parent 237e894805
commit cbefac0be0
2 changed files with 419 additions and 0 deletions
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340
src/target/image.c Normal file
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/***************************************************************************
* Copyright (C) 2007 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include "image.h"
#include "types.h"
#include "replacements.h"
#include "log.h"
#include "fileio.h"
#include "target.h"
int image_ihex_buffer_complete(image_t *image)
{
image_ihex_t *ihex = image->type_private;
fileio_t *fileio = &ihex->fileio;
u32 raw_bytes_read, raw_bytes;
int retval;
u32 full_address = image->base_address;
char *buffer = malloc(ihex->raw_size);
u32 cooked_bytes = 0x0;
ihex->raw_size = fileio->size;
ihex->buffer = malloc(ihex->raw_size >> 1);
if ((retval = fileio_read(fileio, ihex->raw_size, (u8*)buffer, &raw_bytes_read)) != ERROR_OK)
{
free(buffer);
ERROR("failed buffering IHEX file, read failed");
return ERROR_FILEIO_OPERATION_FAILED;
}
if (raw_bytes_read != ihex->raw_size)
{
free(buffer);
ERROR("failed buffering complete IHEX file, only partially read");
return ERROR_FILEIO_OPERATION_FAILED;
}
image->size = 0x0;
raw_bytes = 0x0;
while (raw_bytes < raw_bytes_read)
{
u32 count;
u32 address;
u32 record_type;
u32 checksum;
if (sscanf(&buffer[raw_bytes], ":%2x%4x%2x", &count, &address, &record_type) != 3)
{
return ERROR_IMAGE_FORMAT_ERROR;
}
raw_bytes += 9;
if (record_type == 0)
{
if ((full_address & 0xffff) != address)
{
free(buffer);
ERROR("can't handle non-linear IHEX file");
return ERROR_IMAGE_FORMAT_ERROR;
}
while (count-- > 0)
{
sscanf(&buffer[raw_bytes], "%2hhx", &ihex->buffer[cooked_bytes]);
raw_bytes += 2;
cooked_bytes += 1;
full_address++;
}
}
else if (record_type == 1)
{
free(buffer);
image->size = cooked_bytes;
return ERROR_OK;
}
else if (record_type == 4)
{
u16 upper_address;
sscanf(&buffer[raw_bytes], "%4hx", &upper_address);
raw_bytes += 4;
if ((full_address >> 16) != upper_address)
{
free(buffer);
ERROR("can't handle non-linear IHEX file");
return ERROR_IMAGE_FORMAT_ERROR;
}
}
else if (record_type == 5)
{
u32 start_address;
sscanf(&buffer[raw_bytes], "%8x", &start_address);
raw_bytes += 8;
image->start_address_set = 1;
image->start_address = be_to_h_u32((u8*)&start_address);
}
else
{
free(buffer);
ERROR("unhandled IHEX record type: %i", record_type);
return ERROR_IMAGE_FORMAT_ERROR;
}
sscanf(&buffer[raw_bytes], "%2x", &checksum);
raw_bytes += 2;
/* consume new-line character(s) */
if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r'))
raw_bytes++;
if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r'))
raw_bytes++;
}
free(buffer);
ERROR("premature end of IHEX file, no end-of-file record found");
return ERROR_IMAGE_FORMAT_ERROR;
}
int image_open(image_t *image, void *source, enum fileio_access access)
{
int retval = ERROR_OK;
if (image->type == IMAGE_BINARY)
{
image_binary_t *image_binary;
char *url = source;
image_binary = image->type_private = malloc(sizeof(image_binary_t));
if ((retval = fileio_open(&image_binary->fileio, url, access, FILEIO_BINARY)) != ERROR_OK)
{
strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING);
ERROR(image->error_str);
return retval;
}
if (access == FILEIO_WRITE)
image->size = 0;
else
image->size = image_binary->fileio.size;
return ERROR_OK;
}
else if (image->type == IMAGE_IHEX)
{
image_ihex_t *image_ihex;
char *url = source;
if (access != FILEIO_READ)
{
snprintf(image->error_str, IMAGE_MAX_ERROR_STRING,
"can't open IHEX file for writing");
ERROR(image->error_str);
return ERROR_FILEIO_ACCESS_NOT_SUPPORTED;
}
image_ihex = image->type_private = malloc(sizeof(image_ihex_t));
if ((retval = fileio_open(&image_ihex->fileio, url, FILEIO_READ, FILEIO_TEXT)) != ERROR_OK)
{
strncpy(image->error_str, image_ihex->fileio.error_str, IMAGE_MAX_ERROR_STRING);
ERROR(image->error_str);
return retval;
}
image_ihex->position = 0;
image_ihex->raw_size = image_ihex->fileio.size;
if ((retval = image_ihex_buffer_complete(image)) != ERROR_OK)
{
snprintf(image->error_str, IMAGE_MAX_ERROR_STRING,
"failed buffering IHEX image, check daemon output for additional information");
ERROR(image->error_str);
fileio_close(&image_ihex->fileio);
return retval;
}
}
else if (image->type == IMAGE_MEMORY)
{
image_memory_t *image_memory;
target_t *target = source;
image_memory = image->type_private = malloc(sizeof(image_memory_t));
image_memory->target = target;
}
return retval;
};
int image_read(image_t *image, u32 size, u8 *buffer, u32 *size_read)
{
int retval;
if (image->type == IMAGE_BINARY)
{
image_binary_t *image_binary = image->type_private;
if ((retval = fileio_read(&image_binary->fileio, size, buffer, size_read)) != ERROR_OK)
{
strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING);
return retval;
}
}
else if (image->type == IMAGE_IHEX)
{
image_ihex_t *image_ihex = image->type_private;
if ((image_ihex->position + size) > image->size)
{
/* don't read past the end of the file */
size = (image->size - image_ihex->position);
}
memcpy(buffer, image_ihex->buffer + image_ihex->position, size);
image_ihex->position += size;
*size_read = size;
image->error_str[0] = '\0';
return ERROR_OK;
}
else if (image->type == IMAGE_MEMORY)
{
/* TODO: handle target memory pseudo image */
}
return ERROR_OK;
}
int image_write(image_t *image, u32 size, u8 *buffer, u32 *size_written)
{
int retval = ERROR_FILEIO_OPERATION_NOT_SUPPORTED;
if (image->type == IMAGE_BINARY)
{
image_binary_t *image_binary = image->type_private;
if ((retval = fileio_write(&image_binary->fileio, size, buffer, size_written)) != ERROR_OK)
{
strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING);
return retval;
}
}
else if (image->type == IMAGE_IHEX)
{
return ERROR_FILEIO_OPERATION_NOT_SUPPORTED;
}
else if (image->type == IMAGE_MEMORY)
{
/* TODO: handle target memory pseudo image */
}
if (retval != ERROR_OK)
return retval;
image->size += size;
return ERROR_OK;
}
int image_close(image_t *image)
{
if (image->type == IMAGE_BINARY)
{
image_binary_t *image_binary = image->type_private;
fileio_close(&image_binary->fileio);
}
else if (image->type == IMAGE_IHEX)
{
image_ihex_t *image_ihex = image->type_private;
fileio_close(&image_ihex->fileio);
if (image_ihex->buffer)
free(image_ihex->buffer);
}
else if (image->type == IMAGE_MEMORY)
{
/* do nothing for now */
}
free(image->type_private);
return ERROR_OK;
}
int identify_image_type(image_type_t *type, char *type_string)
{
if (type_string)
{
if (!strcmp(type_string, "bin"))
{
*type = IMAGE_BINARY;
}
else if (!strcmp(type_string, "ihex"))
{
*type = IMAGE_IHEX;
}
else
{
return ERROR_IMAGE_TYPE_UNKNOWN;
}
}
else
{
*type = IMAGE_BINARY;
}
return ERROR_OK;
}

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/***************************************************************************
* Copyright (C) 2007 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef IMAGE_H
#define IMAGE_H
#include "fileio.h"
#include "target.h"
#define IMAGE_MAX_ERROR_STRING (128)
typedef enum image_type
{
IMAGE_BINARY, /* plain binary */
IMAGE_IHEX, /* intel hex-record format */
IMAGE_MEMORY, /* target-memory pseudo-image */
/*
* Possible future enhancements:
* IMAGE_ELF,
* IMAGE_SRECORD,
*/
} image_type_t;
typedef struct image_s
{
image_type_t type; /* image type (plain, ihex, ...) */
void *type_private; /* type private data */
int base_address_set; /* whether the image start address has been set */
u32 base_address; /* base address of image in target memory */
int start_address_set; /* whether the image has a start address (entry point) associated */
u32 start_address; /* start address, if one is set */
u32 size; /* image size in byte */
char error_str[IMAGE_MAX_ERROR_STRING];
} image_t;
typedef struct image_binary_s
{
fileio_t fileio;
} image_binary_t;
typedef struct image_ihex_s
{
fileio_t fileio;
u32 position;
u32 raw_size;
u8 *buffer;
} image_ihex_t;
typedef struct image_memory_s
{
target_t *target;
} image_memory_t;
extern int image_open(image_t *image, void *source, enum fileio_access access);
extern int image_read(image_t *image, u32 size, u8 *buffer, u32 *size_written);
extern int image_write(image_t *image, u32 size, u8 *buffer, u32 *size_written);
extern int image_close(image_t *image);
extern int identify_image_type(image_type_t *type, char *type_string);
#define ERROR_IMAGE_FORMAT_ERROR (-1400)
#define ERROR_IMAGE_TYPE_UNKNOWN (-1401)
#endif /* IMAGE_H */