altos: add GCC/SDCC compat macros, init_stack, save_context and GCC stdio hooks

More arch-indepdency bits.

GCC stdio is different from SDCC, so create suitable code in
avr/ao_avr_stdio.c

Create macros to initialize the task stack frame and save the task
context.

Add GCC/SDCC type definition compatibility macros

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/src/avr/ao_pins.h b/src/avr/ao_pins.h
new file mode 100644
index 00000000..ef41b59c
--- /dev/null
+++ b/src/avr/ao_pins.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright © 2011 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#ifndef _AO_PINS_H_
+#define _AO_PINS_H_
+
+#ifdef AVR_DEMO
+	#define AO_LED_RED		(1<<7)
+	#define LEDS_AVAILABLE		(AO_LED_RED)
+	#define USE_SERIAL_STDIN	1
+	#define HAS_USB			0
+	#define PACKET_HAS_SLAVE	0
+	#define HAS_SERIAL_1		1
+	#define HAS_BEEP		0
+#endif
+
+#endif /* _AO_PINS_H_ */