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Add master to single slave transport

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This commit is contained in:
Fred Sundvik 2016-02-21 21:47:40 +02:00
parent 7b88b8b7e1
commit 8cbfe79dd9
3 changed files with 48 additions and 0 deletions
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17
serial_link/protocol/transport.c
View file

@ -79,6 +79,9 @@ void transport_recv_frame(uint8_t from, uint8_t* data, uint16_t size) {
start = obj->buffer + LOCAL_OBJECT_SIZE(obj->object_size);
start += (from - 1) * REMOTE_OBJECT_SIZE(obj->object_size);
}
else {
start = obj->buffer + NUM_SLAVES * LOCAL_OBJECT_SIZE(obj->object_size);
}
triple_buffer_object_t* tb = (triple_buffer_object_t*)start;
void* ptr = triple_buffer_begin_write_internal(obj->object_size, tb);
memcpy(ptr, data, size -1);
@ -101,5 +104,19 @@ void update_transport(void) {
router_send_frame(dest, ptr, obj->object_size + 1);
}
}
else {
uint8_t* start = obj->buffer;
int j;
for (j=0;j<NUM_SLAVES;j++) {
triple_buffer_object_t* tb = (triple_buffer_object_t*)start;
uint8_t* ptr = (uint8_t*)triple_buffer_read_internal(obj->object_size + LOCAL_OBJECT_EXTRA, tb);
if (ptr) {
ptr[obj->object_size] = i;
uint8_t dest = j + 1;
router_send_frame(dest, ptr, obj->object_size + 1);
}
start += LOCAL_OBJECT_SIZE(obj->object_size);
}
}
}
}

16
serial_link/protocol/transport.h
View file

@ -94,9 +94,25 @@ typedef struct { \
} \
}; \
type* begin_write_##name(uint8_t slave) { \
remote_object_t* obj = (remote_object_t*)&remote_object_##name; \
uint8_t* start = obj->buffer;\
start += slave * LOCAL_OBJECT_SIZE(obj->object_size); \
triple_buffer_object_t* tb = (triple_buffer_object_t*)start; \
return (type*)triple_buffer_begin_write_internal(sizeof(type) + LOCAL_OBJECT_EXTRA, tb); \
}\
void end_write_##name(uint8_t slave) { \
remote_object_t* obj = (remote_object_t*)&remote_object_##name; \
uint8_t* start = obj->buffer;\
start += slave * LOCAL_OBJECT_SIZE(obj->object_size); \
triple_buffer_object_t* tb = (triple_buffer_object_t*)start; \
triple_buffer_end_write_internal(tb); \
signal_data_written(); \
}\
type* read_##name() { \
remote_object_t* obj = (remote_object_t*)&remote_object_##name; \
uint8_t* start = obj->buffer + NUM_SLAVES * LOCAL_OBJECT_SIZE(obj->object_size);\
triple_buffer_object_t* tb = (triple_buffer_object_t*)start; \
return triple_buffer_read_internal(obj->object_size, tb); \
}
#define SLAVE_TO_MASTER_OBJECT(name, type) \

15
serial_link/tests/transport_tests.c
View file

@ -108,3 +108,18 @@ Ensure(Transport, writes_from_slave_to_master) {
assert_that(obj2, is_not_equal_to(NULL));
assert_that(obj2->test, is_equal_to(7));
}
Ensure(Transport, writes_from_master_to_single_slave) {
update_transport();
test_object1_t* obj = begin_write_master_to_single_slave(3);
obj->test = 7;
expect(signal_data_written);
end_write_master_to_single_slave(3);
expect(router_send_frame,
when(destination, is_equal_to(4)));
update_transport();
transport_recv_frame(0, sent_data, sent_data_size);
test_object1_t* obj2 = read_master_to_single_slave();
assert_that(obj2, is_not_equal_to(NULL));
assert_that(obj2->test, is_equal_to(7));
}