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Add master to slave transport

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This commit is contained in:
Fred Sundvik 2016-02-21 21:04:42 +02:00
parent fe1db50fc3
commit 415ab91c9d
3 changed files with 69 additions and 8 deletions
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31
serial_link/protocol/transport.c
View file

@ -23,18 +23,43 @@ SOFTWARE.
*/
#include "protocol/transport.h"
#include "protocol/frame_router.h"
#include "protocol/triple_buffered_object.h"
static remote_object_t* remote_objects;
static remote_object_t** remote_objects;
static uint32_t num_remote_objects;
void init_transport(remote_object_t* _remote_objects, uint32_t _num_remote_objects) {
void init_transport(remote_object_t** _remote_objects, uint32_t _num_remote_objects) {
remote_objects = _remote_objects;
num_remote_objects = _num_remote_objects;
}
void transport_recv_frame(uint8_t from, uint8_t* data, uint16_t size) {
uint8_t id = data[size-1];
remote_object_t* obj = remote_objects[id];
if (obj->object_type == MASTER_TO_ALL_SLAVES) {
uint8_t* start = obj->buffer + 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);
triple_buffer_end_write_internal(tb);
}
}
uint32_t transport_send_frame(uint8_t to, uint8_t* data, uint16_t size) {
}
void update_transport(void) {
int i;
for(i=0;i<num_remote_objects;i++) {
remote_object_t* obj = remote_objects[i];
if (obj->object_type == MASTER_TO_ALL_SLAVES) {
triple_buffer_object_t* tb = (triple_buffer_object_t*)obj->buffer;
uint8_t* ptr = (uint8_t*)triple_buffer_read_internal(obj->object_size + LOCAL_OBJECT_EXTRA, tb);
if (ptr) {
ptr[obj->object_size] = i;
router_send_frame(0xFF, ptr, obj->object_size + 1);
}
}
}
}

18
serial_link/protocol/transport.h
View file

@ -68,9 +68,21 @@ typedef struct { \
} \
}; \
type* begin_write_##name(void) { \
remote_object_t* obj = (remote_object_t*)&remote_object_##name; \
triple_buffer_object_t* tb = (triple_buffer_object_t*)obj->buffer; \
return (type*)triple_buffer_begin_write_internal(sizeof(type) + LOCAL_OBJECT_EXTRA, tb); \
}\
void end_write_##name(void) { \
remote_object_t* obj = (remote_object_t*)&remote_object_##name; \
triple_buffer_object_t* tb = (triple_buffer_object_t*)obj->buffer; \
triple_buffer_end_write_internal(tb); \
signal_data_written(); \
}\
type* read_##name(void) { \
remote_object_t* obj = (remote_object_t*)&remote_object_##name; \
uint8_t* start = obj->buffer + 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 MASTER_TO_SINGLE_SLAVE_OBJECT(name, type) \
@ -103,11 +115,9 @@ typedef struct { \
#define REMOTE_OBJECT(name) (remote_object_t*)&remote_object_##name
void init_transport(remote_object_t* remote_objects, uint32_t num_remote_objects);
void init_transport(remote_object_t** remote_objects, uint32_t num_remote_objects);
void transport_recv_frame(uint8_t from, uint8_t* data, uint16_t size);
uint32_t transport_send_frame(uint8_t to, uint8_t* data, uint16_t size);
void transport_register_master_remote_object(uint8_t id, void* ptr, uint16_t size);
void transport_register_slave_remote_object(uint8_t id, void* ptr, uint16_t size);
void update_transport(void);
#endif

28
serial_link/tests/transport_tests.c
View file

@ -25,11 +25,21 @@ SOFTWARE.
#include <cgreen/cgreen.h>
#include <cgreen/mocks.h>
#include "protocol/transport.c"
#include "protocol/triple_buffered_object.c"
void signal_data_written(void) {
mock();
}
static uint8_t sent_data[2048];
static uint16_t sent_data_size;
void router_send_frame(uint8_t destination, uint8_t* data, uint16_t size) {
mock(destination);
memcpy(sent_data + sent_data_size, data, size);
sent_data_size += size;
}
typedef struct {
uint32_t test;
} test_object1_t;
@ -51,7 +61,8 @@ remote_object_t* test_remote_objects[] = {
Describe(Transport);
BeforeEach(Transport) {
init_transport(remote_objects, sizeof(remote_objects) / sizeof(remote_object_t));
init_transport(test_remote_objects, sizeof(test_remote_objects) / sizeof(remote_object_t*));
sent_data_size = 0;
}
AfterEach(Transport) {}
@ -66,3 +77,18 @@ Ensure(Transport, write_to_local_signals_an_event) {
expect(signal_data_written);
end_write_master_to_single_slave(1);
}
Ensure(Transport, writes_from_master_to_all_slaves) {
update_transport();
test_object1_t* obj = begin_write_master_to_slave();
obj->test = 5;
expect(signal_data_written);
end_write_master_to_slave();
expect(router_send_frame,
when(destination, is_equal_to(0xFF)));
update_transport();
transport_recv_frame(0, sent_data, sent_data_size);
test_object1_t* obj2 = read_master_to_slave();
assert_that(obj2, is_not_equal_to(NULL));
assert_that(obj2->test, is_equal_to(5));
}