Split higher level parallel port programmer code off from ppi.c into

its own file par.c, leaving low level parallel port accessor routines
in ppi.c to help with portability.  Change the programmer type to
'PAR' now instead of 'PPI' - 'PAR' represents the parallel port
programmer type.

Be more liberal with 'static' function declarations within the
programmer implimentation files - these functions should never be
called directly - always use the programmer function references.

There are still a few places in 'main.c' that directly reference the
parallel programmer explicitly (par_getpinmask).  These should be
fixed somehow.

Axe a few unused functions.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@190 81a1dc3b-b13d-400b-aceb-764788c761c2

ppi.h

@@ -24,10 +24,15 @@
 
 #include "config.h"
 
+/*
+ * PPI registers
+ */
+enum {
+  PPIDATA,
+  PPICTRL,
+  PPISTATUS
+};
 
-void ppi_initpgm        (PROGRAMMER * pgm);
-
-int ppi_getpinmask(int pin);
 
 #if !defined(ppi_claim)
 #  define ppi_claim(pgm)
@@ -37,6 +42,22 @@ int ppi_getpinmask(int pin);
 #  define ppi_release(pgm)
 #endif
 
+int ppi_get       (int fd, int reg, int bit);
+
+int ppi_set       (int fd, int reg, int bit);
+
+int ppi_clr       (int fd, int reg, int bit);
+
+int ppi_getall    (int fd, int reg);
+
+int ppi_setall    (int fd, int reg, int val);
+
+int ppi_toggle    (int fd, int reg, int bit);
+
+int ppi_open      (char * port);
+
+void ppi_close    (int fd);
+
 #endif