twi: Update, 95% functional master code

[simavr] / simavr / sim / avr_twi.h

diff --git a/simavr/sim/avr_twi.h b/simavr/sim/avr_twi.h
index 7dfef64..21c3687 100644 (file)
--- a/simavr/sim/avr_twi.h
+++ b/simavr/sim/avr_twi.h
@@ -93,4 +93,22 @@ avr_twi_init(
                avr_t * avr,
                avr_twi_t * port);
 
+/*
+ * Create a message value for twi incuding the 'msg' bitfield,
+ * 'addr' and data. This value is what is sent as the IRQ value
+ */
+static inline uint32_t
+avr_twi_irq_msg(
+               uint8_t msg,
+               uint8_t addr,
+               uint8_t data)
+{
+       avr_twi_msg_irq_t _msg = {
+                       .u.twi.msg = msg,
+                       .u.twi.addr = addr,
+                       .u.twi.data = data,
+       };
+       return _msg.u.v;
+}
+
 #endif /* AVR_TWI_H_ */