Add port name defaults to the config file instead of hard-coding.

This adds 'default_parallel' and 'default_serial' keywords to the
grammar, which take quoted string arguments.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@214 81a1dc3b-b13d-400b-aceb-764788c761c2

avrdude.conf.sample

@@ -169,6 +169,13 @@
 #define AT89S52	    0xE1
 
 
+#
+# Overall avrdude defaults
+#
+default_parallel = "/dev/ppi0";
+default_serial   = "/dev/cuaa0";
+
+
 #
 # PROGRAMMER DEFINITIONS
 #

config.c

@@ -30,6 +30,9 @@
 #include "config.h"
 #include "config_gram.h"
 
+char default_parallel[PATH_MAX];
+char default_serial[PATH_MAX];
+
 char string_buf[MAX_STR_CONST];
 char *string_buf_ptr;
 

config.h

@@ -53,6 +53,10 @@ extern int          lineno;
 extern char       * infile;
 extern LISTID       string_list;
 extern LISTID       number_list;
+extern char         default_parallel[];
+extern char         default_serial[];
+
+
 
 #if !defined(HAS_YYSTYPE)
 #define YYSTYPE struct token_t *

config_gram.y

@@ -67,6 +67,8 @@ static int parse_cmdbits(OPCODE * op);
 %token K_BUFF
 %token K_CHIP_ERASE_DELAY
 %token K_DEDICATED
+%token K_DEFAULT_PARALLEL
+%token K_DEFAULT_SERIAL
 %token K_DESC
 %token K_DEVICECODE
 %token K_EEPROM
@@ -126,7 +128,20 @@ config :
 
 def :
   prog_def TKN_SEMI |
-  part_def TKN_SEMI
+
+  part_def TKN_SEMI |
+
+  K_DEFAULT_PARALLEL TKN_EQUAL TKN_STRING TKN_SEMI {
+    strncpy(default_parallel, $3->value.string, PATH_MAX);
+    default_parallel[PATH_MAX-1] = 0;
+    free_token($3);
+  } |
+
+  K_DEFAULT_SERIAL TKN_EQUAL TKN_STRING TKN_SEMI {
+    strncpy(default_serial, $3->value.string, PATH_MAX);
+    default_serial[PATH_MAX-1] = 0;
+    free_token($3);
+  }
 ;
 
 

lexer.l

@@ -121,6 +121,8 @@ bs2              { yylval=NULL; return K_BS2; }
 buff             { yylval=NULL; return K_BUFF; }
 chip_erase_delay { yylval=NULL; return K_CHIP_ERASE_DELAY; }
 desc             { yylval=NULL; return K_DESC; }
+default_parallel { yylval=NULL; return K_DEFAULT_PARALLEL; }
+default_serial   { yylval=NULL; return K_DEFAULT_SERIAL; }
 devicecode       { yylval=NULL; return K_DEVICECODE; }
 eeprom           { yylval=NULL; return K_EEPROM; }
 errled           { yylval=NULL; return K_ERRLED; }

main.c

@@ -86,9 +86,6 @@
 #include "term.h"
 
 
-#define DEFAULT_PARALLEL "/dev/ppi0"
-#define DEFAULT_SERIAL   "/dev/cuaa0"
-
 char * version      = "3.1.0";
 
 int    verbose;     /* verbose output */
@@ -308,11 +305,14 @@ int main(int argc, char * argv [])
   else
     progname = argv[0];
 
+  default_parallel[0] = 0;
+  default_serial[0]   = 0;
+
   init_config();
 
   partdesc      = NULL;
   readorwrite   = 0;
-  port          = DEFAULT_PARALLEL;
+  port          = default_parallel;
   outputf       = NULL;
   inputf        = NULL;
   doread        = 1;
@@ -381,8 +381,8 @@ int main(int argc, char * argv [])
       case 'c': /* pin configuration */
         pinconfig = optarg;
         if (strcmp(pinconfig, "stk500") == 0) {
-          if (port == DEFAULT_PARALLEL) {
+          if (port == default_parallel) {
-            port = DEFAULT_SERIAL;
+            port = default_serial;
           }
         }
         break;
@@ -613,6 +613,19 @@ int main(int argc, char * argv [])
   /*
    * open the programmer
    */
+  if (port[0] == 0) {
+    fprintf(stderr, "\n%s: no port has been specified on the command or the "
+            "config file\n", 
+            progname);
+    fprintf(stderr, "%sSpecify a port using the -P option and try again\n\n",
+            progbuf);
+    exit(1);
+  }
+
+  if (verbose) {
+    fprintf(stderr, "%sUsing Port            : %s\n", progbuf, port);
+  }
+
   pgm->open(pgm, port);
 
   if (verbose) {