patch #9816: Implement new programmer type: linuxspi

* linuxspi.c: (New file.)
* linuxspi.h: (New file.)
* Makefile.am: Add new files
* configure.ac: Add "linuxspi" --enable option
* avrdude.conf.in: Add "linuxspi" programmer template
* pgm_type.c: Include linuxspi programmer
* doc/avrdude.texi: Document new programmer
* avrdude.1: (Dito.)

Submitted by Ralf Ramsauer



git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1447 81a1dc3b-b13d-400b-aceb-764788c761c2

configure.ac

@@ -336,6 +336,18 @@ AC_ARG_ENABLE(
 		esac],
 	[enabled_linuxgpio=no])	
 
+AC_ARG_ENABLE(
+	[linuxspi],
+	AC_HELP_STRING(
+		[--enable-linuxspi],
+		[Enable the Linux SPIDEV interface programmer type]),
+	[case "${enableval}" in
+		yes) enabled_linuxspi=yes ;;
+		no)  enabled_linuxspi=no ;;
+		*)   AC_MSG_ERROR(bad value ${enableval} for enable-linuxspi option) ;;
+		esac],
+	[enabled_linuxspi=no])
+
 DIST_SUBDIRS_AC='doc windows'
 
 if test "$enabled_doc" = "yes"; then
@@ -413,6 +425,14 @@ else
 fi
 
 
+if test "$enabled_linuxspi" = "yes"; then
+	AC_DEFINE(HAVE_LINUXSPI, 1, [Linux SPI support enabled])
+	confsubst="$confsubst -e /^@HAVE_LINUXSPI_/d"
+else
+	confsubst="$confsubst -e /^@HAVE_LINUXSPI_BEGIN@/,/^@HAVE_LINUXSPI_END@/d"
+fi
+
+
 # If we are compiling with gcc, enable all warning and make warnings errors.
 if test "$GCC" = yes; then
     ENABLE_WARNINGS="-Wall"
@@ -590,3 +610,9 @@ else
    echo "DISABLED   linuxgpio"
 fi
 
+if test x$enabled_linuxspi = xyes; then
+   echo "ENABLED    linuxspi"
+else
+   echo "DISABLED   linuxspi"
+fi
+