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/* bsdl.c - BSDL file handler for the advanced JTAG bridge
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/* bsdl.c - BSDL file handler for the advanced JTAG bridge
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Copyright(C) 2008 Nathan Yawn
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Copyright(C) 2008 - 2010 Nathan Yawn
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This program is free software; you can redistribute it and/or modify
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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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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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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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(at your option) any later version.
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#include <sys/types.h>
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#include <sys/types.h>
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#include <string.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdio.h>
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#include <dirent.h>
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#include <dirent.h>
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#include <stdlib.h>
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#include <errno.h>
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#include "bsdl.h"
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#include "bsdl.h"
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#include "bsdl_parse.h"
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#include "bsdl_parse.h"
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#define debug(...) //fprintf(stderr, __VA_ARGS__ )
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#define debug(...) //fprintf(stderr, __VA_ARGS__ )
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// Globals to hold BSDL info
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// Globals to hold BSDL info
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static bsdlinfo *bsdl_head = NULL;
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static bsdlinfo *bsdl_head = NULL;
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static bsdlinfo *bsdl_tail = NULL;
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static bsdlinfo *bsdl_tail = NULL;
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static bsdlinfo *bsdl_last = NULL; // optimization: pointer to the last struct we used (not necessarily the last in the linked list)
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static bsdlinfo *bsdl_last = NULL; // optimization: pointer to the last struct we used (not necessarily the last in the linked list)
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// Scratchpad for full pathname
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int bsdl_scratchpad_size = 0;
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char *bsdl_scratchpad = NULL;
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// Prototypes for local functions
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// Prototypes for local functions
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bsdlinfo *get_bsdl_info(uint32_t idcode);
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bsdlinfo *get_bsdl_info(uint32_t idcode);
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bsdl_dirs[0] = strdup("/opt/bsdl");
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bsdl_dirs[0] = strdup("/opt/bsdl");
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bsdl_dirs[1] = strdup("/usr/share/bsdl");
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bsdl_dirs[1] = strdup("/usr/share/bsdl");
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bsdl_dirs[2] = strdup("~/.bsdl");
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bsdl_dirs[2] = strdup("~/.bsdl");
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bsdl_dirs[3] = strdup(".");
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bsdl_dirs[3] = strdup(".");
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bsdl_current_dir = 3;
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bsdl_current_dir = 3;
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bsdl_scratchpad = (char *) malloc(64);
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bsdl_scratchpad_size = 64;
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}
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}
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void bsdl_add_directory(const char *dirname)
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void bsdl_add_directory(const char *dirname)
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{
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{
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if(bsdl_current_dir >= (MAX_BSDL_DIRS-1)) {
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if(bsdl_current_dir >= (MAX_BSDL_DIRS-1)) {
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if(bsdl_current_dir < 0)
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if(bsdl_current_dir < 0)
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return NULL; // There are no more directories to check
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return NULL; // There are no more directories to check
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debug("Trying BSDL dir \'%s\'\n", bsdl_dirs[bsdl_current_dir]);
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debug("Trying BSDL dir \'%s\'\n", bsdl_dirs[bsdl_current_dir]);
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bsdl_open_dir = opendir(bsdl_dirs[bsdl_current_dir]);
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bsdl_open_dir = opendir(bsdl_dirs[bsdl_current_dir]);
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if((bsdl_open_dir == NULL) && (bsdl_current_dir > 2)) // Don't warn if default dirs not found
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if((bsdl_open_dir == NULL) && (bsdl_current_dir > 2)) // Don't warn if default dirs not found
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printf("Warning: unable to open BSDL directory \'%s\'\n", bsdl_dirs[bsdl_current_dir]);
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printf("Warning: unable to open BSDL directory \'%s\': %s\n", bsdl_dirs[bsdl_current_dir], strerror(errno));
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bsdl_current_dir--;
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bsdl_current_dir--;
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direntry = NULL;
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direntry = NULL;
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}
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}
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// Find a BSDL file
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// Find a BSDL file
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do
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do
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{
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{
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direntry = readdir(bsdl_open_dir);
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direntry = readdir(bsdl_open_dir);
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if(direntry == NULL)
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if(direntry == NULL)
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{ // We've exhausted this directory
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{ // We've exhausted this directory
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debug("Next bsdl directory\n");
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closedir(bsdl_open_dir);
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closedir(bsdl_open_dir);
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bsdl_open_dir = NULL;
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bsdl_open_dir = NULL;
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break;
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break;
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}
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}
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while(1);
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while(1);
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if(direntry == NULL) // We need a new directory
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if(direntry == NULL) // We need a new directory
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continue;
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continue;
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// Make sure we can hold the full path
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if((strlen(direntry->d_name) + strlen(bsdl_dirs[bsdl_current_dir+1])+1) >= bsdl_scratchpad_size)
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{
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char *tmp = (char *) realloc(bsdl_scratchpad, (bsdl_scratchpad_size*2));
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if(tmp != NULL)
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{
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debug("Extending bsdl scratchpad to size %i", bsdl_scratchpad_size);
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bsdl_scratchpad_size *= 2;
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bsdl_scratchpad = tmp;
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}
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else
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{
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fprintf(stderr, "Warning: failed to reallocate BSDL scratchpad to size %i", bsdl_scratchpad_size*2);
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continue;
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}
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}
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strcpy(bsdl_scratchpad, bsdl_dirs[bsdl_current_dir+1]);
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strcat(bsdl_scratchpad, "/");
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strcat(bsdl_scratchpad, direntry->d_name);
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// Parse the BSDL file we found
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// Parse the BSDL file we found
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debug("Parsing file \'%s\'\n", direntry->d_name);
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debug("Parsing file \'%s\'\n", bsdl_scratchpad);
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ptr = parse_extract_values(direntry->d_name);
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ptr = parse_extract_values(bsdl_scratchpad);
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// If we got good data...
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// If we got good data...
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if(ptr != NULL)
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if(ptr != NULL)
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{
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{
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// Store the values...
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// Store the values...
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