- add missing image handling files
git-svn-id: svn://svn.berlios.de/openocd/trunk@156 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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drath
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237e894805
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cbefac0be0
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/***************************************************************************
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* Copyright (C) 2007 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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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 as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include "image.h"
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#include "types.h"
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#include "replacements.h"
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#include "log.h"
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#include "fileio.h"
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#include "target.h"
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int image_ihex_buffer_complete(image_t *image)
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{
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image_ihex_t *ihex = image->type_private;
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fileio_t *fileio = &ihex->fileio;
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u32 raw_bytes_read, raw_bytes;
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int retval;
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u32 full_address = image->base_address;
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char *buffer = malloc(ihex->raw_size);
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u32 cooked_bytes = 0x0;
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ihex->raw_size = fileio->size;
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ihex->buffer = malloc(ihex->raw_size >> 1);
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if ((retval = fileio_read(fileio, ihex->raw_size, (u8*)buffer, &raw_bytes_read)) != ERROR_OK)
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{
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free(buffer);
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ERROR("failed buffering IHEX file, read failed");
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return ERROR_FILEIO_OPERATION_FAILED;
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}
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if (raw_bytes_read != ihex->raw_size)
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{
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free(buffer);
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ERROR("failed buffering complete IHEX file, only partially read");
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return ERROR_FILEIO_OPERATION_FAILED;
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}
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image->size = 0x0;
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raw_bytes = 0x0;
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while (raw_bytes < raw_bytes_read)
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{
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u32 count;
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u32 address;
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u32 record_type;
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u32 checksum;
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if (sscanf(&buffer[raw_bytes], ":%2x%4x%2x", &count, &address, &record_type) != 3)
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{
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return ERROR_IMAGE_FORMAT_ERROR;
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}
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raw_bytes += 9;
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if (record_type == 0)
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{
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if ((full_address & 0xffff) != address)
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{
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free(buffer);
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ERROR("can't handle non-linear IHEX file");
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return ERROR_IMAGE_FORMAT_ERROR;
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}
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while (count-- > 0)
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{
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sscanf(&buffer[raw_bytes], "%2hhx", &ihex->buffer[cooked_bytes]);
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raw_bytes += 2;
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cooked_bytes += 1;
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full_address++;
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}
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}
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else if (record_type == 1)
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{
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free(buffer);
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image->size = cooked_bytes;
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return ERROR_OK;
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}
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else if (record_type == 4)
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{
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u16 upper_address;
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sscanf(&buffer[raw_bytes], "%4hx", &upper_address);
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raw_bytes += 4;
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if ((full_address >> 16) != upper_address)
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{
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free(buffer);
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ERROR("can't handle non-linear IHEX file");
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return ERROR_IMAGE_FORMAT_ERROR;
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}
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}
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else if (record_type == 5)
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{
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u32 start_address;
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sscanf(&buffer[raw_bytes], "%8x", &start_address);
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raw_bytes += 8;
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image->start_address_set = 1;
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image->start_address = be_to_h_u32((u8*)&start_address);
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}
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else
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{
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free(buffer);
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ERROR("unhandled IHEX record type: %i", record_type);
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return ERROR_IMAGE_FORMAT_ERROR;
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}
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sscanf(&buffer[raw_bytes], "%2x", &checksum);
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raw_bytes += 2;
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/* consume new-line character(s) */
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if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r'))
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raw_bytes++;
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if ((buffer[raw_bytes] == '\n') || (buffer[raw_bytes] == '\r'))
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raw_bytes++;
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}
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free(buffer);
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ERROR("premature end of IHEX file, no end-of-file record found");
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return ERROR_IMAGE_FORMAT_ERROR;
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}
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int image_open(image_t *image, void *source, enum fileio_access access)
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{
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int retval = ERROR_OK;
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if (image->type == IMAGE_BINARY)
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{
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image_binary_t *image_binary;
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char *url = source;
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image_binary = image->type_private = malloc(sizeof(image_binary_t));
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if ((retval = fileio_open(&image_binary->fileio, url, access, FILEIO_BINARY)) != ERROR_OK)
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{
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strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING);
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ERROR(image->error_str);
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return retval;
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}
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if (access == FILEIO_WRITE)
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image->size = 0;
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else
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image->size = image_binary->fileio.size;
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return ERROR_OK;
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}
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else if (image->type == IMAGE_IHEX)
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{
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image_ihex_t *image_ihex;
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char *url = source;
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if (access != FILEIO_READ)
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{
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snprintf(image->error_str, IMAGE_MAX_ERROR_STRING,
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"can't open IHEX file for writing");
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ERROR(image->error_str);
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return ERROR_FILEIO_ACCESS_NOT_SUPPORTED;
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}
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image_ihex = image->type_private = malloc(sizeof(image_ihex_t));
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if ((retval = fileio_open(&image_ihex->fileio, url, FILEIO_READ, FILEIO_TEXT)) != ERROR_OK)
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{
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strncpy(image->error_str, image_ihex->fileio.error_str, IMAGE_MAX_ERROR_STRING);
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ERROR(image->error_str);
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return retval;
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}
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image_ihex->position = 0;
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image_ihex->raw_size = image_ihex->fileio.size;
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if ((retval = image_ihex_buffer_complete(image)) != ERROR_OK)
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{
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snprintf(image->error_str, IMAGE_MAX_ERROR_STRING,
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"failed buffering IHEX image, check daemon output for additional information");
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ERROR(image->error_str);
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fileio_close(&image_ihex->fileio);
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return retval;
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}
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}
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else if (image->type == IMAGE_MEMORY)
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{
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image_memory_t *image_memory;
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target_t *target = source;
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image_memory = image->type_private = malloc(sizeof(image_memory_t));
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image_memory->target = target;
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}
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return retval;
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};
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int image_read(image_t *image, u32 size, u8 *buffer, u32 *size_read)
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{
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int retval;
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if (image->type == IMAGE_BINARY)
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{
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image_binary_t *image_binary = image->type_private;
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if ((retval = fileio_read(&image_binary->fileio, size, buffer, size_read)) != ERROR_OK)
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{
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strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING);
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return retval;
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}
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}
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else if (image->type == IMAGE_IHEX)
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{
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image_ihex_t *image_ihex = image->type_private;
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if ((image_ihex->position + size) > image->size)
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{
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/* don't read past the end of the file */
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size = (image->size - image_ihex->position);
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}
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memcpy(buffer, image_ihex->buffer + image_ihex->position, size);
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image_ihex->position += size;
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*size_read = size;
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image->error_str[0] = '\0';
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return ERROR_OK;
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}
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else if (image->type == IMAGE_MEMORY)
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{
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/* TODO: handle target memory pseudo image */
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}
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return ERROR_OK;
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}
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int image_write(image_t *image, u32 size, u8 *buffer, u32 *size_written)
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{
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int retval = ERROR_FILEIO_OPERATION_NOT_SUPPORTED;
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if (image->type == IMAGE_BINARY)
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{
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image_binary_t *image_binary = image->type_private;
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if ((retval = fileio_write(&image_binary->fileio, size, buffer, size_written)) != ERROR_OK)
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{
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strncpy(image->error_str, image_binary->fileio.error_str, IMAGE_MAX_ERROR_STRING);
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return retval;
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}
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}
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else if (image->type == IMAGE_IHEX)
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{
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return ERROR_FILEIO_OPERATION_NOT_SUPPORTED;
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}
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else if (image->type == IMAGE_MEMORY)
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{
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/* TODO: handle target memory pseudo image */
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}
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if (retval != ERROR_OK)
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return retval;
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image->size += size;
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return ERROR_OK;
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}
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int image_close(image_t *image)
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{
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if (image->type == IMAGE_BINARY)
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{
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image_binary_t *image_binary = image->type_private;
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fileio_close(&image_binary->fileio);
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}
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else if (image->type == IMAGE_IHEX)
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{
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image_ihex_t *image_ihex = image->type_private;
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fileio_close(&image_ihex->fileio);
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if (image_ihex->buffer)
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free(image_ihex->buffer);
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}
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else if (image->type == IMAGE_MEMORY)
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{
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/* do nothing for now */
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}
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free(image->type_private);
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return ERROR_OK;
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}
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int identify_image_type(image_type_t *type, char *type_string)
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{
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if (type_string)
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{
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if (!strcmp(type_string, "bin"))
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{
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*type = IMAGE_BINARY;
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}
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else if (!strcmp(type_string, "ihex"))
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{
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*type = IMAGE_IHEX;
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}
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else
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{
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return ERROR_IMAGE_TYPE_UNKNOWN;
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}
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}
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else
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{
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*type = IMAGE_BINARY;
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}
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return ERROR_OK;
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}
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@ -0,0 +1,79 @@
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/***************************************************************************
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* Copyright (C) 2007 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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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 as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef IMAGE_H
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#define IMAGE_H
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#include "fileio.h"
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#include "target.h"
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#define IMAGE_MAX_ERROR_STRING (128)
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typedef enum image_type
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{
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IMAGE_BINARY, /* plain binary */
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IMAGE_IHEX, /* intel hex-record format */
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IMAGE_MEMORY, /* target-memory pseudo-image */
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/*
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* Possible future enhancements:
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* IMAGE_ELF,
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* IMAGE_SRECORD,
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*/
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} image_type_t;
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typedef struct image_s
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{
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image_type_t type; /* image type (plain, ihex, ...) */
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void *type_private; /* type private data */
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int base_address_set; /* whether the image start address has been set */
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u32 base_address; /* base address of image in target memory */
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int start_address_set; /* whether the image has a start address (entry point) associated */
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u32 start_address; /* start address, if one is set */
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u32 size; /* image size in byte */
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char error_str[IMAGE_MAX_ERROR_STRING];
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} image_t;
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typedef struct image_binary_s
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{
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fileio_t fileio;
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} image_binary_t;
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typedef struct image_ihex_s
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{
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fileio_t fileio;
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u32 position;
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u32 raw_size;
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u8 *buffer;
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} image_ihex_t;
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typedef struct image_memory_s
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{
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target_t *target;
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} image_memory_t;
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extern int image_open(image_t *image, void *source, enum fileio_access access);
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extern int image_read(image_t *image, u32 size, u8 *buffer, u32 *size_written);
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extern int image_write(image_t *image, u32 size, u8 *buffer, u32 *size_written);
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extern int image_close(image_t *image);
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extern int identify_image_type(image_type_t *type, char *type_string);
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#define ERROR_IMAGE_FORMAT_ERROR (-1400)
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#define ERROR_IMAGE_TYPE_UNKNOWN (-1401)
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#endif /* IMAGE_H */
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