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-rw-r--r--serial_link/protocol/frame_router.c16
-rw-r--r--serial_link/tests/frame_router_tests.c36
2 files changed, 46 insertions, 6 deletions
diff --git a/serial_link/protocol/frame_router.c b/serial_link/protocol/frame_router.c
index c61c50ebd6..890ebbe9ea 100644
--- a/serial_link/protocol/frame_router.c
+++ b/serial_link/protocol/frame_router.c
@@ -33,7 +33,9 @@ void router_set_master(bool master) {
void route_incoming_frame(uint8_t link, uint8_t* data, uint16_t size){
if (is_master) {
- transport_recv_frame(data[size-1], data, size - 1);
+ if (link == DOWN_LINK) {
+ transport_recv_frame(data[size-1], data, size - 1);
+ }
}
else {
if (link == UP_LINK) {
@@ -52,11 +54,15 @@ void route_incoming_frame(uint8_t link, uint8_t* data, uint16_t size){
void router_send_frame(uint8_t destination, uint8_t* data, uint16_t size) {
if (destination == 0) {
- data[size] = 1;
- validator_send_frame(UP_LINK, data, size + 1);
+ if (!is_master) {
+ data[size] = 1;
+ validator_send_frame(UP_LINK, data, size + 1);
+ }
}
else {
- data[size] = destination;
- validator_send_frame(DOWN_LINK, data, size + 1);
+ if (is_master) {
+ data[size] = destination;
+ validator_send_frame(DOWN_LINK, data, size + 1);
+ }
}
}
diff --git a/serial_link/tests/frame_router_tests.c b/serial_link/tests/frame_router_tests.c
index 6b00aca677..0b0ea6e7f4 100644
--- a/serial_link/tests/frame_router_tests.c
+++ b/serial_link/tests/frame_router_tests.c
@@ -174,7 +174,6 @@ Ensure(FrameRouter, first_link_sends_to_master) {
}
Ensure(FrameRouter, second_link_sends_to_master) {
- printf("Second to master start\n");
frame_buffer_t data;
data.data = 0xAB7055BB;
activate_router(2);
@@ -195,3 +194,38 @@ Ensure(FrameRouter, second_link_sends_to_master) {
assert_that(router_buffers[0].send_buffers[DOWN_LINK].sent_data_size, is_equal_to(0));
assert_that(router_buffers[0].send_buffers[UP_LINK].sent_data_size, is_equal_to(0));
}
+
+Ensure(FrameRouter, master_sends_to_master_does_nothing) {
+ frame_buffer_t data;
+ data.data = 0xAB7055BB;
+ activate_router(0);
+ router_send_frame(0, (uint8_t*)&data, 4);
+ assert_that(router_buffers[0].send_buffers[UP_LINK].sent_data_size, is_equal_to(0));
+ assert_that(router_buffers[0].send_buffers[DOWN_LINK].sent_data_size, is_equal_to(0));
+}
+
+Ensure(FrameRouter, link_sends_to_other_link_does_nothing) {
+ frame_buffer_t data;
+ data.data = 0xAB7055BB;
+ activate_router(1);
+ router_send_frame(2, (uint8_t*)&data, 4);
+ assert_that(router_buffers[1].send_buffers[UP_LINK].sent_data_size, is_equal_to(0));
+ assert_that(router_buffers[1].send_buffers[DOWN_LINK].sent_data_size, is_equal_to(0));
+}
+
+Ensure(FrameRouter, master_receives_on_uplink_does_nothing) {
+ frame_buffer_t data;
+ data.data = 0xAB7055BB;
+ activate_router(1);
+ router_send_frame(0, (uint8_t*)&data, 4);
+ assert_that(router_buffers[1].send_buffers[UP_LINK].sent_data_size, is_greater_than(0));
+ assert_that(router_buffers[1].send_buffers[DOWN_LINK].sent_data_size, is_equal_to(0));
+
+ never_expect(transport_recv_frame);
+ activate_router(0);
+ receive_data(UP_LINK,
+ router_buffers[1].send_buffers[UP_LINK].sent_data,
+ router_buffers[1].send_buffers[UP_LINK].sent_data_size);
+ assert_that(router_buffers[0].send_buffers[UP_LINK].sent_data_size, is_equal_to(0));
+ assert_that(router_buffers[0].send_buffers[DOWN_LINK].sent_data_size, is_equal_to(0));
+}