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This commit is contained in:
Fred Sundvik 2016-02-20 12:06:23 +02:00
parent 419908e5ef
commit 5a1600e24f
8 changed files with 171 additions and 162 deletions
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77
serial_link/protocol/byte_stuffer.c
View File

@ -32,6 +32,7 @@ SOFTWARE.
// http://www.stuartcheshire.org/papers/COBSforToN.pdf
#define MAX_FRAME_SIZE 1024
#define NUM_LINKS 2
typedef struct byte_stuffer_state {
uint16_t next_zero;
@ -40,70 +41,78 @@ typedef struct byte_stuffer_state {
uint8_t data[MAX_FRAME_SIZE];
}byte_stuffer_state_t;
static byte_stuffer_state_t state;
static byte_stuffer_state_t states[NUM_LINKS];
void init_byte_stuffer(void) {
state.next_zero = 0;
state.data_pos = 0;
state.long_frame = false;
void init_byte_stuffer_state(byte_stuffer_state_t* state) {
state->next_zero = 0;
state->data_pos = 0;
state->long_frame = false;
}
void recv_byte(uint8_t data) {
void init_byte_stuffer(void) {
int i;
for (i=0;i<NUM_LINKS;i++) {
init_byte_stuffer_state(&states[i]);
}
}
void recv_byte(uint8_t link, uint8_t data) {
byte_stuffer_state_t* state = &states[link];
// Start of a new frame
if (state.next_zero == 0) {
state.next_zero = data;
state.long_frame = data == 0xFF;
state.data_pos = 0;
if (state->next_zero == 0) {
state->next_zero = data;
state->long_frame = data == 0xFF;
state->data_pos = 0;
return;
}
state.next_zero--;
state->next_zero--;
if (data == 0) {
if (state.next_zero == 0) {
if (state->next_zero == 0) {
// The frame is completed
if (state.data_pos > 0) {
validator_recv_frame(state.data, state.data_pos);
if (state->data_pos > 0) {
validator_recv_frame(link, state->data, state->data_pos);
}
}
else {
// The frame is invalid, so reset
init_byte_stuffer();
init_byte_stuffer_state(state);
}
}
else {
if (state.data_pos == MAX_FRAME_SIZE) {
if (state->data_pos == MAX_FRAME_SIZE) {
// We exceeded our maximum frame size
// therefore there's nothing else to do than reset to a new frame
state.next_zero = data;
state.long_frame = data == 0xFF;
state.data_pos = 0;
state->next_zero = data;
state->long_frame = data == 0xFF;
state->data_pos = 0;
}
else if (state.next_zero == 0) {
if (state.long_frame) {
else if (state->next_zero == 0) {
if (state->long_frame) {
// This is part of a long frame, so continue
state.next_zero = data;
state.long_frame = data == 0xFF;
state->next_zero = data;
state->long_frame = data == 0xFF;
}
else {
// Special case for zeroes
state.next_zero = data;
state.data[state.data_pos++] = 0;
state->next_zero = data;
state->data[state->data_pos++] = 0;
}
}
else {
state.data[state.data_pos++] = data;
state->data[state->data_pos++] = data;
}
}
}
static void send_block(uint8_t* start, uint8_t* end, uint8_t num_non_zero) {
send_data(&num_non_zero, 1);
static void send_block(uint8_t link, uint8_t* start, uint8_t* end, uint8_t num_non_zero) {
send_data(link, &num_non_zero, 1);
if (end > start) {
send_data(start, end-start);
send_data(link, start, end-start);
}
}
void send_frame(uint8_t* data, uint16_t size) {
void send_frame(uint8_t link, uint8_t* data, uint16_t size) {
const uint8_t zero = 0;
if (size > 0) {
uint16_t num_non_zero = 1;
@ -113,14 +122,14 @@ void send_frame(uint8_t* data, uint16_t size) {
if (num_non_zero == 0xFF) {
// There's more data after big non-zero block
// So send it, and start a new block
send_block(start, data, num_non_zero);
send_block(link, start, data, num_non_zero);
start = data;
num_non_zero = 1;
}
else {
if (*data == 0) {
// A zero encountered, so send the block
send_block(start, data, num_non_zero);
send_block(link, start, data, num_non_zero);
start = data + 1;
num_non_zero = 1;
}
@ -130,7 +139,7 @@ void send_frame(uint8_t* data, uint16_t size) {
++data;
}
}
send_block(start, data, num_non_zero);
send_data(&zero, 1);
send_block(link, start, data, num_non_zero);
send_data(link, &zero, 1);
}
}

4
serial_link/protocol/byte_stuffer.h
View File

@ -23,5 +23,5 @@ SOFTWARE.
*/
void init_byte_stuffer(void);
void recv_byte(uint8_t data);
void send_frame(uint8_t* data, uint16_t size);
void recv_byte(uint8_t link, uint8_t data);
void send_frame(uint8_t link, uint8_t* data, uint16_t size);

2
serial_link/protocol/frame_router.h
View File

@ -22,4 +22,4 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
void route_incoming_frame(uint8_t* data, uint16_t size);
void route_incoming_frame(uint8_t link, uint8_t* data, uint16_t size);

8
serial_link/protocol/frame_validator.c
View File

@ -102,19 +102,19 @@ static uint32_t crc32_byte(uint8_t *p, uint32_t bytelength)
return (crc ^ 0xffffffff);
}
void validator_recv_frame(uint8_t* data, uint16_t size) {
void validator_recv_frame(uint8_t link, uint8_t* data, uint16_t size) {
if (size > 4) {
uint32_t frame_crc;
memcpy(&frame_crc, data + size -4, 4);
uint32_t expected_crc = crc32_byte(data, size - 4);
if (frame_crc == expected_crc) {
route_incoming_frame(data, size-4);
route_incoming_frame(link, data, size-4);
}
}
}
void validator_send_frame(uint8_t* data, uint16_t size) {
void validator_send_frame(uint8_t link, uint8_t* data, uint16_t size) {
uint32_t crc = crc32_byte(data, size);
memcpy(data + size, &crc, 4);
send_frame(data, size + 4);
send_frame(link, data, size + 4);
}

4
serial_link/protocol/frame_validator.h
View File

@ -22,6 +22,6 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
void validator_recv_frame(uint8_t* data, uint16_t size);
void validator_recv_frame(uint8_t link, uint8_t* data, uint16_t size);
// The buffer pointed to by the data needs 4 additional bytes
void validator_send_frame(uint8_t* data, uint16_t size);
void validator_send_frame(uint8_t link, uint8_t* data, uint16_t size);

2
serial_link/protocol/physical.h
View File

@ -22,4 +22,4 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
void send_data(const uint8_t* data, uint16_t size);
void send_data(uint8_t link, const uint8_t* data, uint16_t size);

212
serial_link/tests/byte_stuffer_tests.c
View File

@ -39,34 +39,34 @@ BeforeEach(ByteStuffer) {
}
AfterEach(ByteStuffer) {}
void validator_recv_frame(uint8_t* data, uint16_t size) {
void validator_recv_frame(uint8_t link, uint8_t* data, uint16_t size) {
mock(data, size);
}
void send_data(const uint8_t* data, uint16_t size) {
void send_data(uint8_t link, const uint8_t* data, uint16_t size) {
memcpy(sent_data + sent_data_size, data, size);
sent_data_size += size;
}
Ensure(ByteStuffer, receives_no_frame_for_a_single_zero_byte) {
never_expect(validator_recv_frame);
recv_byte(0);
recv_byte(0, 0);
}
Ensure(ByteStuffer, receives_no_frame_for_a_single_FF_byte) {
never_expect(validator_recv_frame);
recv_byte(0xFF);
recv_byte(0, 0xFF);
}
Ensure(ByteStuffer, receives_no_frame_for_a_single_random_byte) {
never_expect(validator_recv_frame);
recv_byte(0x4A);
recv_byte(0, 0x4A);
}
Ensure(ByteStuffer, receives_no_frame_for_a_zero_length_frame) {
never_expect(validator_recv_frame);
recv_byte(1);
recv_byte(0);
recv_byte(0, 1);
recv_byte(0, 0);
}
Ensure(ByteStuffer, receives_single_byte_valid_frame) {
@ -75,9 +75,9 @@ Ensure(ByteStuffer, receives_single_byte_valid_frame) {
when(size, is_equal_to(1)),
when(data, is_equal_to_contents_of(expected, 1))
);
recv_byte(2);
recv_byte(0x37);
recv_byte(0);
recv_byte(0, 2);
recv_byte(0, 0x37);
recv_byte(0, 0);
}
Ensure(ByteStuffer, receives_three_bytes_valid_frame) {
@ -86,11 +86,11 @@ Ensure(ByteStuffer, receives_three_bytes_valid_frame) {
when(size, is_equal_to(3)),
when(data, is_equal_to_contents_of(expected, 3))
);
recv_byte(4);
recv_byte(0x37);
recv_byte(0x99);
recv_byte(0xFF);
recv_byte(0);
recv_byte(0, 4);
recv_byte(0, 0x37);
recv_byte(0, 0x99);
recv_byte(0, 0xFF);
recv_byte(0, 0);
}
Ensure(ByteStuffer, receives_single_zero_valid_frame) {
@ -99,9 +99,9 @@ Ensure(ByteStuffer, receives_single_zero_valid_frame) {
when(size, is_equal_to(1)),
when(data, is_equal_to_contents_of(expected, 1))
);
recv_byte(1);
recv_byte(1);
recv_byte(0);
recv_byte(0, 1);
recv_byte(0, 1);
recv_byte(0, 0);
}
Ensure(ByteStuffer, receives_valid_frame_with_zeroes) {
@ -110,12 +110,12 @@ Ensure(ByteStuffer, receives_valid_frame_with_zeroes) {
when(size, is_equal_to(4)),
when(data, is_equal_to_contents_of(expected, 4))
);
recv_byte(2);
recv_byte(5);
recv_byte(2);
recv_byte(3);
recv_byte(1);
recv_byte(0);
recv_byte(0, 2);
recv_byte(0, 5);
recv_byte(0, 2);
recv_byte(0, 3);
recv_byte(0, 1);
recv_byte(0, 0);
}
Ensure(ByteStuffer, receives_two_valid_frames) {
@ -129,13 +129,13 @@ Ensure(ByteStuffer, receives_two_valid_frames) {
when(size, is_equal_to(1)),
when(data, is_equal_to_contents_of(expected2, 1))
);
recv_byte(2);
recv_byte(5);
recv_byte(1);
recv_byte(0);
recv_byte(2);
recv_byte(3);
recv_byte(0);
recv_byte(1, 2);
recv_byte(1, 5);
recv_byte(1, 1);
recv_byte(1, 0);
recv_byte(1, 2);
recv_byte(1, 3);
recv_byte(1, 0);
}
Ensure(ByteStuffer, receives_valid_frame_after_unexpected_zero) {
@ -144,13 +144,13 @@ Ensure(ByteStuffer, receives_valid_frame_after_unexpected_zero) {
when(size, is_equal_to(2)),
when(data, is_equal_to_contents_of(expected, 2))
);
recv_byte(3);
recv_byte(1);
recv_byte(0);
recv_byte(3);
recv_byte(5);
recv_byte(7);
recv_byte(0);
recv_byte(1, 3);
recv_byte(1, 1);
recv_byte(1, 0);
recv_byte(1, 3);
recv_byte(1, 5);
recv_byte(1, 7);
recv_byte(1, 0);
}
Ensure(ByteStuffer, receives_valid_frame_after_unexpected_non_zero) {
@ -159,14 +159,14 @@ Ensure(ByteStuffer, receives_valid_frame_after_unexpected_non_zero) {
when(size, is_equal_to(2)),
when(data, is_equal_to_contents_of(expected, 2))
);
recv_byte(2);
recv_byte(9);
recv_byte(4); // This should have been zero
recv_byte(0);
recv_byte(3);
recv_byte(5);
recv_byte(7);
recv_byte(0);
recv_byte(0, 2);
recv_byte(0, 9);
recv_byte(0, 4); // This should have been zero
recv_byte(0, 0);
recv_byte(0, 3);
recv_byte(0, 5);
recv_byte(0, 7);
recv_byte(0, 0);
}
Ensure(ByteStuffer, receives_a_valid_frame_with_over254_non_zeroes_and_then_end_of_frame) {
@ -179,11 +179,11 @@ Ensure(ByteStuffer, receives_a_valid_frame_with_over254_non_zeroes_and_then_end_
when(size, is_equal_to(254)),
when(data, is_equal_to_contents_of(expected, 254))
);
recv_byte(0xFF);
recv_byte(0, 0xFF);
for (i=0;i<254;i++) {
recv_byte(i+1);
recv_byte(0, i+1);
}
recv_byte(0);
recv_byte(0, 0);
}
Ensure(ByteStuffer, receives_a_valid_frame_with_over254_non_zeroes_next_byte_is_non_zero) {
@ -197,13 +197,13 @@ Ensure(ByteStuffer, receives_a_valid_frame_with_over254_non_zeroes_next_byte_is_
when(size, is_equal_to(255)),
when(data, is_equal_to_contents_of(expected, 255))
);
recv_byte(0xFF);
recv_byte(0, 0xFF);
for (i=0;i<254;i++) {
recv_byte(i+1);
recv_byte(0, i+1);
}
recv_byte(2);
recv_byte(7);
recv_byte(0);
recv_byte(0, 2);
recv_byte(0, 7);
recv_byte(0, 0);
}
Ensure(ByteStuffer, receives_a_valid_frame_with_over254_non_zeroes_next_byte_is_zero) {
@ -217,13 +217,13 @@ Ensure(ByteStuffer, receives_a_valid_frame_with_over254_non_zeroes_next_byte_is_
when(size, is_equal_to(255)),
when(data, is_equal_to_contents_of(expected, 255))
);
recv_byte(0xFF);
recv_byte(0, 0xFF);
for (i=0;i<254;i++) {
recv_byte(i+1);
recv_byte(0, i+1);
}
recv_byte(1);
recv_byte(1);
recv_byte(0);
recv_byte(0, 1);
recv_byte(0, 1);
recv_byte(0, 0);
}
Ensure(ByteStuffer, receives_two_long_frames_and_some_more) {
@ -242,23 +242,23 @@ Ensure(ByteStuffer, receives_two_long_frames_and_some_more) {
when(size, is_equal_to(515)),
when(data, is_equal_to_contents_of(expected, 510))
);
recv_byte(0xFF);
recv_byte(0, 0xFF);
for (i=0;i<254;i++) {
recv_byte(i+1);
recv_byte(0, i+1);
}
recv_byte(0xFF);
recv_byte(0, 0xFF);
for (i=0;i<254;i++) {
recv_byte(i+1);
recv_byte(0, i+1);
}
recv_byte(8);
recv_byte(1);
recv_byte(2);
recv_byte(3);
recv_byte(4);
recv_byte(5);
recv_byte(6);
recv_byte(7);
recv_byte(0);
recv_byte(0, 8);
recv_byte(0, 1);
recv_byte(0, 2);
recv_byte(0, 3);
recv_byte(0, 4);
recv_byte(0, 5);
recv_byte(0, 6);
recv_byte(0, 7);
recv_byte(0, 0);
}
Ensure(ByteStuffer, receives_an_all_zeros_frame_that_is_maximum_size) {
@ -268,23 +268,23 @@ Ensure(ByteStuffer, receives_an_all_zeros_frame_that_is_maximum_size) {
when(data, is_equal_to_contents_of(expected, MAX_FRAME_SIZE))
);
int i;
recv_byte(1);
recv_byte(0, 1);
for(i=0;i<MAX_FRAME_SIZE;i++) {
recv_byte(1);
recv_byte(0, 1);
}
recv_byte(0);
recv_byte(0, 0);
}
Ensure(ByteStuffer, doesnt_recv_a_frame_thats_too_long_all_zeroes) {
uint8_t expected[1] = {0};
never_expect(validator_recv_frame);
int i;
recv_byte(1);
recv_byte(0, 1);
for(i=0;i<MAX_FRAME_SIZE;i++) {
recv_byte(1);
recv_byte(0, 1);
}
recv_byte(1);
recv_byte(0);
recv_byte(0, 1);
recv_byte(0, 0);
}
Ensure(ByteStuffer, received_frame_is_aborted_when_its_too_long) {
@ -294,23 +294,23 @@ Ensure(ByteStuffer, received_frame_is_aborted_when_its_too_long) {
when(data, is_equal_to_contents_of(expected, 1))
);
int i;
recv_byte(1);
recv_byte(0, 1);
for(i=0;i<MAX_FRAME_SIZE;i++) {
recv_byte(1);
recv_byte(0, 1);
}
recv_byte(2);
recv_byte(1);
recv_byte(0);
recv_byte(0, 2);
recv_byte(0, 1);
recv_byte(0, 0);
}
Ensure(ByteStuffer, does_nothing_when_sending_zero_size_frame) {
assert_that(sent_data_size, is_equal_to(0));
send_frame(NULL, 0);
send_frame(0, NULL, 0);
}
Ensure(ByteStuffer, send_one_byte_frame) {
uint8_t data[] = {5};
send_frame(data, 1);
send_frame(1, data, 1);
uint8_t expected[] = {2, 5, 0};
assert_that(sent_data_size, is_equal_to(sizeof(expected)));
assert_that(sent_data, is_equal_to_contents_of(expected, sizeof(expected)));
@ -318,7 +318,7 @@ Ensure(ByteStuffer, send_one_byte_frame) {
Ensure(ByteStuffer, sends_two_byte_frame) {
uint8_t data[] = {5, 0x77};
send_frame(data, 2);
send_frame(0, data, 2);
uint8_t expected[] = {3, 5, 0x77, 0};
assert_that(sent_data_size, is_equal_to(sizeof(expected)));
assert_that(sent_data, is_equal_to_contents_of(expected, sizeof(expected)));
@ -326,7 +326,7 @@ Ensure(ByteStuffer, sends_two_byte_frame) {
Ensure(ByteStuffer, sends_one_byte_frame_with_zero) {
uint8_t data[] = {0};
send_frame(data, 1);
send_frame(0, data, 1);
uint8_t expected[] = {1, 1, 0};
assert_that(sent_data_size, is_equal_to(sizeof(expected)));
assert_that(sent_data, is_equal_to_contents_of(expected, sizeof(expected)));
@ -334,7 +334,7 @@ Ensure(ByteStuffer, sends_one_byte_frame_with_zero) {
Ensure(ByteStuffer, sends_two_byte_frame_starting_with_zero) {
uint8_t data[] = {0, 9};
send_frame(data, 2);
send_frame(1, data, 2);
uint8_t expected[] = {1, 2, 9, 0};
assert_that(sent_data_size, is_equal_to(sizeof(expected)));
assert_that(sent_data, is_equal_to_contents_of(expected, sizeof(expected)));
@ -342,7 +342,7 @@ Ensure(ByteStuffer, sends_two_byte_frame_starting_with_zero) {
Ensure(ByteStuffer, sends_two_byte_frame_starting_with_non_zero) {
uint8_t data[] = {9, 0};
send_frame(data, 2);
send_frame(1, data, 2);
uint8_t expected[] = {2, 9, 1, 0};
assert_that(sent_data_size, is_equal_to(sizeof(expected)));
assert_that(sent_data, is_equal_to_contents_of(expected, sizeof(expected)));
@ -350,7 +350,7 @@ Ensure(ByteStuffer, sends_two_byte_frame_starting_with_non_zero) {
Ensure(ByteStuffer, sends_three_byte_frame_zero_in_the_middle) {
uint8_t data[] = {9, 0, 0x68};
send_frame(data, 3);
send_frame(0, data, 3);
uint8_t expected[] = {2, 9, 2, 0x68, 0};
assert_that(sent_data_size, is_equal_to(sizeof(expected)));
assert_that(sent_data, is_equal_to_contents_of(expected, sizeof(expected)));
@ -358,7 +358,7 @@ Ensure(ByteStuffer, sends_three_byte_frame_zero_in_the_middle) {
Ensure(ByteStuffer, sends_three_byte_frame_data_in_the_middle) {
uint8_t data[] = {0, 0x55, 0};
send_frame(data, 3);
send_frame(0, data, 3);
uint8_t expected[] = {1, 2, 0x55, 1, 0};
assert_that(sent_data_size, is_equal_to(sizeof(expected)));
assert_that(sent_data, is_equal_to_contents_of(expected, sizeof(expected)));
@ -366,7 +366,7 @@ Ensure(ByteStuffer, sends_three_byte_frame_data_in_the_middle) {
Ensure(ByteStuffer, sends_three_byte_frame_with_all_zeroes) {
uint8_t data[] = {0, 0, 0};
send_frame(data, 3);
send_frame(0, data, 3);
uint8_t expected[] = {1, 1, 1, 1, 0};
assert_that(sent_data_size, is_equal_to(sizeof(expected)));
assert_that(sent_data, is_equal_to_contents_of(expected, sizeof(expected)));
@ -378,7 +378,7 @@ Ensure(ByteStuffer, sends_frame_with_254_non_zeroes) {
for(i=0;i<254;i++) {
data[i] = i + 1;
}
send_frame(data, 254);
send_frame(0, data, 254);
uint8_t expected[256];
expected[0] = 0xFF;
for(i=1;i<255;i++) {
@ -395,7 +395,7 @@ Ensure(ByteStuffer, sends_frame_with_255_non_zeroes) {
for(i=0;i<255;i++) {
data[i] = i + 1;
}
send_frame(data, 255);
send_frame(0, data, 255);
uint8_t expected[258];
expected[0] = 0xFF;
for(i=1;i<255;i++) {
@ -415,7 +415,7 @@ Ensure(ByteStuffer, sends_frame_with_254_non_zeroes_followed_by_zero) {
data[i] = i + 1;
}
data[255] = 0;
send_frame(data, 255);
send_frame(0, data, 255);
uint8_t expected[258];
expected[0] = 0xFF;
for(i=1;i<255;i++) {
@ -430,27 +430,27 @@ Ensure(ByteStuffer, sends_frame_with_254_non_zeroes_followed_by_zero) {
Ensure(ByteStuffer, sends_and_receives_full_roundtrip_small_packet) {
uint8_t original_data[] = { 1, 2, 3};
send_frame(original_data, sizeof(original_data));
send_frame(0, original_data, sizeof(original_data));
expect(validator_recv_frame,
when(size, is_equal_to(sizeof(original_data))),
when(data, is_equal_to_contents_of(original_data, sizeof(original_data)))
);
int i;
for(i=0;i<sent_data_size;i++) {
recv_byte(sent_data[i]);
recv_byte(1, sent_data[i]);
}
}
Ensure(ByteStuffer, sends_and_receives_full_roundtrip_small_packet_with_zeros) {
uint8_t original_data[] = { 1, 0, 3, 0, 0, 9};
send_frame(original_data, sizeof(original_data));
send_frame(1, original_data, sizeof(original_data));
expect(validator_recv_frame,
when(size, is_equal_to(sizeof(original_data))),
when(data, is_equal_to_contents_of(original_data, sizeof(original_data)))
);
int i;
for(i=0;i<sent_data_size;i++) {
recv_byte(sent_data[i]);
recv_byte(0, sent_data[i]);
}
}
@ -460,13 +460,13 @@ Ensure(ByteStuffer, sends_and_receives_full_roundtrip_254_bytes) {
for(i=0;i<254;i++) {
original_data[i] = i + 1;
}
send_frame(original_data, sizeof(original_data));
send_frame(0, original_data, sizeof(original_data));
expect(validator_recv_frame,
when(size, is_equal_to(sizeof(original_data))),
when(data, is_equal_to_contents_of(original_data, sizeof(original_data)))
);
for(i=0;i<sent_data_size;i++) {
recv_byte(sent_data[i]);
recv_byte(1, sent_data[i]);
}
}
@ -478,13 +478,13 @@ Ensure(ByteStuffer, sends_and_receives_full_roundtrip_256_bytes) {
}
original_data[254] = 22;
original_data[255] = 23;
send_frame(original_data, sizeof(original_data));
send_frame(0, original_data, sizeof(original_data));
expect(validator_recv_frame,
when(size, is_equal_to(sizeof(original_data))),
when(data, is_equal_to_contents_of(original_data, sizeof(original_data)))
);
for(i=0;i<sent_data_size;i++) {
recv_byte(sent_data[i]);
recv_byte(1, sent_data[i]);
}
}
@ -495,12 +495,12 @@ Ensure(ByteStuffer, sends_and_receives_full_roundtrip_254_bytes_and_then_zero) {
original_data[i] = i + 1;
}
original_data[254] = 0;
send_frame(original_data, sizeof(original_data));
send_frame(0, original_data, sizeof(original_data));
expect(validator_recv_frame,
when(size, is_equal_to(sizeof(original_data))),
when(data, is_equal_to_contents_of(original_data, sizeof(original_data)))
);
for(i=0;i<sent_data_size;i++) {
recv_byte(sent_data[i]);
recv_byte(1, sent_data[i]);
}
}

24
serial_link/tests/frame_validator_tests.c
View File

@ -26,11 +26,11 @@ SOFTWARE.
#include <cgreen/mocks.h>
#include "protocol/frame_validator.c"
void route_incoming_frame(uint8_t* data, uint16_t size) {
void route_incoming_frame(uint8_t link, uint8_t* data, uint16_t size) {
mock(data, size);
}
void send_frame(uint8_t* data, uint16_t size) {
void send_frame(uint8_t link, uint8_t* data, uint16_t size) {
mock(data, size);
}
@ -41,10 +41,10 @@ AfterEach(FrameValidator) {}
Ensure(FrameValidator, doesnt_validate_frames_under_5_bytes) {
never_expect(route_incoming_frame);
uint8_t data[] = {1, 2};
validator_recv_frame(0, 1);
validator_recv_frame(data, 2);
validator_recv_frame(data, 3);
validator_recv_frame(data, 4);
validator_recv_frame(0, 0, 1);
validator_recv_frame(0, data, 2);
validator_recv_frame(0, data, 3);
validator_recv_frame(0, data, 4);
}
Ensure(FrameValidator, validates_one_byte_frame_with_correct_crc) {
@ -53,13 +53,13 @@ Ensure(FrameValidator, validates_one_byte_frame_with_correct_crc) {
when(size, is_equal_to(1)),
when(data, is_equal_to_contents_of(data, 1))
);
validator_recv_frame(data, 5);
validator_recv_frame(0, data, 5);
}
Ensure(FrameValidator, does_not_validate_one_byte_frame_with_incorrect_crc) {
uint8_t data[] = {0x44, 0, 0, 0, 0};
never_expect(route_incoming_frame);
validator_recv_frame(data, 5);
validator_recv_frame(1, data, 5);
}
Ensure(FrameValidator, validates_four_byte_frame_with_correct_crc) {
@ -68,7 +68,7 @@ Ensure(FrameValidator, validates_four_byte_frame_with_correct_crc) {
when(size, is_equal_to(4)),
when(data, is_equal_to_contents_of(data, 4))
);
validator_recv_frame(data, 8);
validator_recv_frame(1, data, 8);
}
Ensure(FrameValidator, validates_five_byte_frame_with_correct_crc) {
@ -77,7 +77,7 @@ Ensure(FrameValidator, validates_five_byte_frame_with_correct_crc) {
when(size, is_equal_to(5)),
when(data, is_equal_to_contents_of(data, 5))
);
validator_recv_frame(data, 9);
validator_recv_frame(0, data, 9);
}
Ensure(FrameValidator, sends_one_byte_with_correct_crc) {
@ -87,7 +87,7 @@ Ensure(FrameValidator, sends_one_byte_with_correct_crc) {
when(size, is_equal_to(sizeof(expected))),
when(data, is_equal_to_contents_of(expected, sizeof(expected)))
);
validator_send_frame(original, 1);
validator_send_frame(0, original, 1);
}
Ensure(FrameValidator, sends_five_bytes_with_correct_crc) {
@ -97,5 +97,5 @@ Ensure(FrameValidator, sends_five_bytes_with_correct_crc) {
when(size, is_equal_to(sizeof(expected))),
when(data, is_equal_to_contents_of(expected, sizeof(expected)))
);
validator_send_frame(original, 5);
validator_send_frame(0, original, 5);
}