From b5003bc24fecbcdf437ddb7d8ef2b54f3649c6c2 Mon Sep 17 00:00:00 2001
From: Robin Krens <robin@robinkrens.nl>
Date: Wed, 18 May 2022 23:27:04 +0200
Subject: [PATCH] hbc: added stub files

---
 Makefile |  4 ++--
 haptic.c | 27 +++++++++++++++++++++++++++
 haptic.h | 10 ++++++++++
 hbc.c    | 30 +++++++++++++++++++++++++-----
 4 files changed, 64 insertions(+), 7 deletions(-)
 create mode 100644 haptic.c
 create mode 100644 haptic.h

diff --git a/Makefile b/Makefile
index 6b3bf06..f8cbf9e 100644
--- a/Makefile
+++ b/Makefile
@@ -19,10 +19,10 @@ CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
 LDFLAGS = -Wl,-Map,hbc.map
 TARGET_ARCH = -mmcu=$(MCU)
 
-DEPS = 
+DEPS = haptic.h
 
 ODIR = obj
-_OBJ = hbc.o
+_OBJ = hbc.o haptic.o
 OBJ = $(patsubst %, $(ODIR)/%,$(_OBJ))
 
 $(ODIR)/%.o: %.c $(DEPS)
diff --git a/haptic.c b/haptic.c
new file mode 100644
index 0000000..73a87d3
--- /dev/null
+++ b/haptic.c
@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <avr/io.h>
+#include "haptic.h"
+
+void set_lra_as_sensor(void)
+{
+
+}
+
+void set_lra_as_actuator(void)
+{
+
+}
+
+/* play random haptic effect on lra
+ * lra is used as an actuator*/
+void play_haptic(void)
+{
+	int c = CLICK;
+	switch(c) {
+		case CLICK: 
+			break;
+		default: 
+			break;
+	}
+}
diff --git a/haptic.h b/haptic.h
new file mode 100644
index 0000000..ec02bd0
--- /dev/null
+++ b/haptic.h
@@ -0,0 +1,10 @@
+enum {
+	CLICK = 0,
+	DOUBLE_CLICK,
+	SWEEP,
+	BUZZ,
+};
+
+void set_lra_as_sensor(void);
+void set_lra_as_actuator(void);
+void play_haptic(void);
diff --git a/hbc.c b/hbc.c
index 0cca0dc..a0e77e0 100644
--- a/hbc.c
+++ b/hbc.c
@@ -1,14 +1,34 @@
+#include <stdio.h>
+#include <stdlib.h>
 #include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/sleep.h>
+#include <avr/power.h>
 #include <avr/interrupt.h>
+#include <util/delay.h>
+#include "haptic.h"
 
-#include <stdio.h>
-#include <stdlib.h>
+/* wake up on interrupt */
+static void switch_idle(void)
+{
+	sei();
+	set_sleep_mode(SLEEP_MODE_IDLE);
+	sleep_mode();
+}
 
-#include <util/delay.h>
+static void init_board(void)
+{
+	power_adc_disable();
+	wdt_disable();
+	/* enable interal reference for 
+	 * comparator 
+	 * When the bandgap reference is connected to the Analog Comparator (by setting the ACBG bit in ACSR). */
+}
 
-int main(void) {
-	
+int main(void)
+{
 	
+	init_board();	
 	DDRB |= (1 << DDB3);
 	PORTB = (1 << PB3);
 
-- 
2.7.4