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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
#include <stdio.h>
#include <stdlib.h>
#include "i2ctcpv1.h"
#include "rl.h"
#include "sock.h"
#include "xxd.h"
#include "pb.h"
#include "pb-buf.h"
#include "pb-msg.h"
#include "pb-types.h"
#include "pb-mod.h"
#ifdef DEBUG
bool i2c_dump_send = true;
bool i2c_dump_recv = true;
#else
bool i2c_dump_send = false;
bool i2c_dump_recv = false;
#endif
void i2c_send(uint16_t addr, const char * data, size_t data_size) {
i2ctcp_msg_t msg = {
.addr = addr,
.data = (char *) data,
.length = data_size,
};
char* packed;
size_t size;
if (!i2ctcp_write(&msg, &packed, &size)) return;
sock->send(packed, size);
free(packed);
}
void i2c_dump(const i2ctcp_msg_t * msg) {
pb_buf_t buf = {
.data = (char *) msg->data,
.size = msg->length,
};
pb_msg_t * pb_msg = pb_msg_read(&buf);
// ignore invalid messages
if (msg == NULL) return;
// NOTE: I feel like this check is OK to do because the main controller isn't
// supposed to be written to by I2C controllers that aren't puzzle modules.
// I2C doesn't tell the receiver *who's* currently addressing it, which means
// we have to assume all messages written to the main controller are puzzle
// bus messages, and use the puzzle bus message to get the sender's address.
i2c_addr_t sender, receiver;
sender = receiver = pb_msg->sender;
bool send = sender == PB_MOD_ADDR; // = PB_ADDR_MOD_MAIN
if (send) receiver = msg->addr;
else receiver = PB_MOD_ADDR;
pb_msg_free(pb_msg);
if (send && !i2c_dump_send) return;
if (!send && !i2c_dump_recv) return;
_rl_printf_start();
const char * direction = send ? "send" : "recv";
printf("[I2C %s] 0x%02x -> 0x%02x data(0x%02lx):\n", direction, sender, receiver, msg->length);
xxd(msg->data, msg->length);
_rl_printf_stop();
}
|