[PATCH]: libgloss port for 68hc11/68hc12

[Stephane Carrez <stcarrez at nerim dot fr>]

Hi!

This is the libgloss port for 68HC11/68HC12, posted some months ago,
(See http://sources.redhat.com/ml/newlib/2001/msg00525.html)
and with new license (same as other libgloss files).

Can you integrate this patch ?

Thanks,
	Stephane

2002-07-16  Stephane Carrez  <stcarrez@nerim.fr>

	* README: Mention 68HC11/68HC12 support.
	* configure.in: Recognize m6811-elf and m6812-elf.
	* m68hc11/Makefile.in: New file.
	* m68hc11/configure.in: New file.
	* m68hc11/configure: New file.
	* m68hc11/sci-inout.S: New file for 68hc11/68hc12 sio.

diff -Nrup --exclude=Makefile.in --exclude=configure --exclude=CVS newlib-main/libgloss/README newlib-main-integrate/libgloss/README
--- newlib-main/libgloss/README	Fri Mar 17 23:48:49 2000
+++ newlib-main-integrate/libgloss/README	Wed Jul 17 00:28:02 2002
@@ -1,5 +1,6 @@
 sparc	- Fujitsu Sparclite board. Works on the ex930, ex931, ex933
 hp74x	- Hewlett Packard HP742 board. Also some support for the hp743.
+m68hc11 - Motorola 68HC11 or 68HC12 support.
 m68k	- Motorola MVME135 and IDP board. For CPU32 systems.
 pa	- WinBond and Oki boards with a PA.
 mips	- R3000 support. Array Tech LSI33k based RAID disk controller.
diff -Nrup --exclude=Makefile.in --exclude=configure --exclude=CVS newlib-main/libgloss/configure.in newlib-main-integrate/libgloss/configure.in
--- newlib-main/libgloss/configure.in	Tue Jun 18 23:41:22 2002
+++ newlib-main-integrate/libgloss/configure.in	Sat Jul 13 15:23:34 2002
@@ -34,6 +34,9 @@ case "${target}" in
   m32r-*-*)
 	configdirs="${configdirs} m32r testsuite"
 	;;
+  m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
+	configdirs="m68hc11 testsuite"
+	;;
   m68*-*-*)
 	configdirs="${configdirs} m68k testsuite"
 	;;
diff -Nrup --exclude=Makefile.in --exclude=configure --exclude=CVS newlib-main/libgloss/m68hc11/configure.in newlib-main-integrate/libgloss/m68hc11/configure.in
--- newlib-main/libgloss/m68hc11/configure.in	Thu Jan  1 01:00:00 1970
+++ newlib-main-integrate/libgloss/m68hc11/configure.in	Sat Jul 13 15:23:34 2002
@@ -0,0 +1,91 @@
+dnl Process this file with autoconf to produce a configure script.
+AC_PREREQ(2.5)dnl
+AC_INIT(sci-inout.S)
+
+if test "${enable_shared}" = "yes" ; then
+    echo "Shared libraries not supported for cross compiling, ignored"
+fi
+
+if test "$srcdir" = "." ; then
+  if test "${with_target_subdir}" != "." ; then
+    libgloss_topdir="${srcdir}/${with_multisrctop}../../.."
+  else
+    libgloss_topdir="${srcdir}/${with_multisrctop}../.."
+  fi
+else
+  libgloss_topdir="${srcdir}/../.."
+fi
+AC_CONFIG_AUX_DIR($libgloss_topdir)
+
+AC_CANONICAL_SYSTEM
+AC_ARG_PROGRAM
+
+AC_PROG_INSTALL
+
+# FIXME: We temporarily define our own version of AC_PROG_CC.  This is
+# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We
+# are probably using a cross compiler, which will not be able to fully
+# link an executable.  This should really be fixed in autoconf
+# itself.
+
+AC_DEFUN(LIB_AC_PROG_CC,
+[AC_BEFORE([$0], [AC_PROG_CPP])dnl
+AC_CHECK_PROG(CC, gcc, gcc)
+if test -z "$CC"; then
+  AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
+  test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
+fi
+
+AC_PROG_CC_GNU
+
+if test $ac_cv_prog_gcc = yes; then
+  GCC=yes
+dnl Check whether -g works, even if CFLAGS is set, in case the package
+dnl plays around with CFLAGS (such as to build both debugging and
+dnl normal versions of a library), tasteless as that idea is.
+  ac_test_CFLAGS="${CFLAGS+set}"
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS=
+  AC_PROG_CC_G
+  if test "$ac_test_CFLAGS" = set; then
+    CFLAGS="$ac_save_CFLAGS"
+  elif test $ac_cv_prog_cc_g = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-O2"
+  fi
+else
+  GCC=
+  test "${CFLAGS+set}" = set || CFLAGS="-g"
+fi
+])
+
+LIB_AC_PROG_CC
+
+AS=${AS-as}
+AC_SUBST(AS)
+AR=${AR-ar}
+AC_SUBST(AR)
+LD=${LD-ld}
+AC_SUBST(LD)
+AC_PROG_RANLIB
+
+host_makefile_frag=${srcdir}/../config/default.mh
+
+dnl We have to assign the same value to other variables because autoconf
+dnl doesn't provide a mechanism to substitute a replacement keyword with
+dnl arbitrary data or pathnames.
+dnl
+host_makefile_frag_path=$host_makefile_frag
+AC_SUBST(host_makefile_frag_path)
+AC_SUBST_FILE(host_makefile_frag)
+
+AC_OUTPUT(Makefile,
+. ${libgloss_topdir}/config-ml.in,
+srcdir=${srcdir}
+target=${target}
+ac_configure_args="${ac_configure_args} --enable-multilib"
+CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+libgloss_topdir=${libgloss_topdir}
+)
+
diff -Nrup --exclude=Makefile.in --exclude=configure --exclude=CVS newlib-main/libgloss/m68hc11/sci-inout.S newlib-main-integrate/libgloss/m68hc11/sci-inout.S
--- newlib-main/libgloss/m68hc11/sci-inout.S	Thu Jan  1 01:00:00 1970
+++ newlib-main-integrate/libgloss/m68hc11/sci-inout.S	Sat Jul 13 15:23:34 2002
@@ -0,0 +1,134 @@
+/* M68HC11/M68HC12 serial line operations
+ * Copyright (C) 1999, 2001 Stephane Carrez (stcarrez@nerim.fr)	
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#ifdef mc68hc12
+	SC0CR1 = 0xC2
+	SC0CR2 = 0xC3
+	SC0SR1 = 0xC4
+	SC0DRL = 0xC7
+	SC0BD  = 0xC0
+
+	.sect .data
+	.globl _m68hc12_ports
+_m68hc12_ports:	.word	0
+
+	.sect .text
+	.globl outbyte
+;;;
+;;; int outbyte(char c);
+;;;
+;;; B :	Character to send
+;;; 
+outbyte:
+	bsr	_sci_init
+L1:
+	ldaa	SC0SR1,x
+	bge	L1
+	stab	SC0DRL,x
+	ldab	SC0CR2,x
+	orab	#0x8
+	stab	SC0CR2,x
+	rts
+
+	.sect .text
+	.globl inbyte
+;;;
+;;; char inbyte(void);
+;;; 
+inbyte:
+	bsr	_sci_init
+	ldaa	SC0SR1,x
+	bita	#0x20
+	beq	inbyte
+	ldab	SC0CR2,x
+	rts
+
+	.globl _sci_init
+	.sect .text
+_sci_init:
+	ldx	_m68hc12_ports
+	beq	do_init
+	dex
+	rts
+do_init:
+	ldx	#0x1
+	stx	_m68hc12_ports
+	dex
+	ldd	#26
+	std	SC0BD,x
+	ldaa	#0
+	staa	SC0CR1,x
+	ldaa	#0xC
+	staa	SC0CR2,x
+	rts
+#else	
+	BAUD = 0x2b
+	SCCR1= 0x2c
+	SCCR2= 0x2d
+	SCSR = 0x2e
+	SCDR = 0x2f
+
+	.sect .data
+	.globl _m68hc11_ports
+_m68hc11_ports:	.word	0
+
+	.sect .text
+	.globl outbyte
+;;;
+;;; int outbyte(char c);
+;;;
+;;; B :	Character to send
+;;; 
+outbyte:
+	bsr	_sci_init
+L1:
+	ldaa	SCSR,x
+	bge	L1
+	stab	SCDR,x
+	ldab	SCCR2,x
+	orab	#0x8
+	stab	SCCR2,x
+	rts
+
+	.sect .text
+	.globl inbyte
+;;;
+;;; char inbyte(void);
+;;; 
+inbyte:
+	bsr	_sci_init
+	ldaa	SCSR,x
+	bita	#0x20
+	beq	inbyte
+	ldab	SCDR,x
+	rts
+
+	.globl _sci_init
+	.sect .text
+_sci_init:
+	ldx	_m68hc11_ports
+	beq	do_init
+	rts
+do_init:
+	ldx	#0x1000
+	stx	_m68hc11_ports
+	ldaa	#0x30
+	staa	BAUD,x
+	clra
+	staa	SCCR1,x
+	ldaa	#0xC
+	staa	SCCR2,x
+	rts
+
+#endif