summaryrefslogtreecommitdiff
path: root/robot/sercomm.c
blob: 59b0f5ab16198669111735d4a5ecadcec1877a6e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
#include <stdlib.h>
#include <string.h>

#include "bin.h"
#include "orangutan_shim.h"
#include "sercomm.h"

w2_s_bin *g_w2_sercomm_buffer[W2_SERCOMM_BUFFER_SIZE] = {};
uint8_t g_w2_sercomm_index							  = 0;
uint8_t g_w2_sercomm_offset							  = 0;
uint8_t g_w2_sercomm_buffer_full					  = 0;

void w2_sercomm_main() {
#ifdef W2_SIM
	simprintfunc("w2_sercomm_main", "");
#endif
	// send data
	while (g_w2_sercomm_offset != g_w2_sercomm_index) {
		w2_s_bin *data = g_w2_sercomm_buffer[g_w2_sercomm_offset];
		char *data_cast = malloc(data->bytes);
		memcpy(data_cast, data->data, data->bytes);
		serial_send(data_cast, data->bytes);
		g_w2_sercomm_offset = (g_w2_sercomm_offset + 1) % W2_SERCOMM_BUFFER_SIZE;
	}
}

void w2_sercomm_append_msg(w2_s_bin *data) {
#ifdef W2_SIM
	simprintfunc("w2_sercomm_append_msg", "");
#endif
	uint8_t next_index		 = (g_w2_sercomm_index + 1) % W2_SERCOMM_BUFFER_SIZE;
	g_w2_sercomm_buffer_full = next_index == g_w2_sercomm_offset;
	free(g_w2_sercomm_buffer[g_w2_sercomm_index]);
	w2_s_bin *data_copy = malloc(sizeof(w2_s_bin) + sizeof(uint8_t) * data->bytes);
	memcpy(&data_copy->data, data->data, data->bytes);
	data_copy->bytes = data->bytes;
	g_w2_sercomm_buffer[g_w2_sercomm_index] = data_copy;
	if (g_w2_sercomm_buffer_full) return;
	g_w2_sercomm_index = next_index;
}