You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
41 lines
1.2 KiB
41 lines
1.2 KiB
#pragma once
|
|
|
|
#include "opendbc/safety/safety_declarations.h"
|
|
#include "opendbc/safety/modes/defaults.h"
|
|
|
|
static bool elm327_tx_hook(const CANPacket_t *to_send) {
|
|
const int GM_CAMERA_DIAG_ADDR = 0x24B;
|
|
|
|
bool tx = true;
|
|
int addr = GET_ADDR(to_send);
|
|
int len = GET_LEN(to_send);
|
|
|
|
// All ISO 15765-4 messages must be 8 bytes long
|
|
if (len != 8) {
|
|
tx = false;
|
|
}
|
|
|
|
// Check valid 29 bit send addresses for ISO 15765-4
|
|
// Check valid 11 bit send addresses for ISO 15765-4
|
|
if ((addr != 0x18DB33F1) && ((addr & 0x1FFF00FF) != 0x18DA00F1) &&
|
|
((addr & 0x1FFFFF00) != 0x600) && ((addr & 0x1FFFFF00) != 0x700) &&
|
|
(addr != GM_CAMERA_DIAG_ADDR)) {
|
|
tx = false;
|
|
}
|
|
|
|
// GM camera uses non-standard diagnostic address, this has no control message address collisions
|
|
if ((addr == GM_CAMERA_DIAG_ADDR) && (len == 8)) {
|
|
// Only allow known frame types for ISO 15765-2
|
|
if ((GET_BYTE(to_send, 0) & 0xF0U) > 0x30U) {
|
|
tx = false;
|
|
}
|
|
}
|
|
return tx;
|
|
}
|
|
|
|
// If current_board->has_obd and safety_param == 0, bus 1 is multiplexed to the OBD-II port
|
|
const safety_hooks elm327_hooks = {
|
|
.init = nooutput_init,
|
|
.rx = default_rx_hook,
|
|
.tx = elm327_tx_hook,
|
|
};
|
|
|