canserial: Rename canbus.c to canserial.c

Rename the canbus.c code to canserial.c and introduce new wrapper
functions in canbus.c that connect the low-level canbus hardware code
to the high-level canserial.c code.

This is in preparation for adding "usb to canbus bridge mode".

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2022-06-11 19:37:30 -04:00
parent 11828387d9
commit c8cc98ce5d
9 changed files with 389 additions and 336 deletions

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@ -80,8 +80,11 @@ endmenu
# Generic configuration options for CANbus
config CANSERIAL
bool
config CANBUS
bool
default y if CANSERIAL
config CANBUS_FREQUENCY
int "CAN bus speed" if LOW_LEVEL_OPTIONS && CANSERIAL
int "CAN bus speed" if LOW_LEVEL_OPTIONS && CANBUS
default 500000
config CANBUS_FILTER
bool

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@ -1,342 +1,32 @@
// Generic handling of serial over CAN support
// Wrapper functions connecting canserial.c to low-level can hardware
//
// Copyright (C) 2019 Eug Krashtan <eug.krashtan@gmail.com>
// Copyright (C) 2020 Pontus Borg <glpontus@gmail.com>
// Copyright (C) 2021 Kevin O'Connor <kevin@koconnor.net>
// Copyright (C) 2022 Kevin O'Connor <kevin@koconnor.net>
//
// This file may be distributed under the terms of the GNU GPLv3 license.
#include <string.h> // memcpy
#include "board/armcm_reset.h" // try_request_canboot
#include "board/io.h" // readb
#include "board/irq.h" // irq_save
#include "board/misc.h" // console_sendf
#include "canbus.h" // canbus_set_uuid
#include "command.h" // DECL_CONSTANT
#include "fasthash.h" // fasthash64
#include "sched.h" // sched_wake_task
#include "canbus.h" // canbus_send
#include "canserial.h" // canserial_send
#define CANBUS_UUID_LEN 6
int
canserial_send(struct canbus_msg *msg)
{
return canbus_send(msg);
}
// Global storage
static struct canbus_data {
uint32_t assigned_id;
uint8_t uuid[CANBUS_UUID_LEN];
// Tx data
struct task_wake tx_wake;
uint8_t transmit_pos, transmit_max;
// Rx data
struct task_wake rx_wake;
uint8_t receive_pos;
uint32_t admin_pull_pos, admin_push_pos;
// Transfer buffers
struct canbus_msg admin_queue[8];
uint8_t transmit_buf[96];
uint8_t receive_buf[192];
} CanData;
/****************************************************************
* Data transmission over CAN
****************************************************************/
void
canserial_set_filter(uint32_t id)
{
canbus_set_filter(id);
}
void
canbus_notify_tx(void)
{
sched_wake_task(&CanData.tx_wake);
canserial_notify_tx();
}
void
canbus_tx_task(void)
{
if (!sched_check_wake(&CanData.tx_wake))
return;
uint32_t id = CanData.assigned_id;
if (!id) {
CanData.transmit_pos = CanData.transmit_max = 0;
return;
}
struct canbus_msg msg;
msg.id = id + 1;
uint32_t tpos = CanData.transmit_pos, tmax = CanData.transmit_max;
for (;;) {
int avail = tmax - tpos, now = avail > 8 ? 8 : avail;
if (avail <= 0)
break;
msg.dlc = now;
memcpy(msg.data, &CanData.transmit_buf[tpos], now);
int ret = canbus_send(&msg);
if (ret <= 0)
break;
tpos += now;
}
CanData.transmit_pos = tpos;
}
DECL_TASK(canbus_tx_task);
// Encode and transmit a "response" message
void
console_sendf(const struct command_encoder *ce, va_list args)
{
// Verify space for message
uint32_t tpos = CanData.transmit_pos, tmax = CanData.transmit_max;
if (tpos >= tmax)
CanData.transmit_pos = CanData.transmit_max = tpos = tmax = 0;
uint32_t max_size = ce->max_size;
if (tmax + max_size > sizeof(CanData.transmit_buf)) {
if (tmax + max_size - tpos > sizeof(CanData.transmit_buf))
// Not enough space for message
return;
// Move buffer
tmax -= tpos;
memmove(&CanData.transmit_buf[0], &CanData.transmit_buf[tpos], tmax);
CanData.transmit_pos = tpos = 0;
CanData.transmit_max = tmax;
}
// Generate message
uint32_t msglen = command_encode_and_frame(&CanData.transmit_buf[tmax]
, ce, args);
// Start message transmit
CanData.transmit_max = tmax + msglen;
canbus_notify_tx();
}
/****************************************************************
* CAN "admin" command handling
****************************************************************/
// Available commands and responses
#define CANBUS_CMD_QUERY_UNASSIGNED 0x00
#define CANBUS_CMD_SET_KLIPPER_NODEID 0x01
#define CANBUS_CMD_REQUEST_BOOTLOADER 0x02
#define CANBUS_RESP_NEED_NODEID 0x20
// Helper to verify a UUID in a command matches this chip's UUID
static int
can_check_uuid(struct canbus_msg *msg)
{
return (msg->dlc >= 7
&& memcmp(&msg->data[1], CanData.uuid, sizeof(CanData.uuid)) == 0);
}
// Helpers to encode/decode a CAN identifier to a 1-byte "nodeid"
static int
can_get_nodeid(void)
{
if (!CanData.assigned_id)
return 0;
return (CanData.assigned_id - 0x100) >> 1;
}
static uint32_t
can_decode_nodeid(int nodeid)
{
return (nodeid << 1) + 0x100;
}
static void
can_process_query_unassigned(struct canbus_msg *msg)
{
if (CanData.assigned_id)
return;
struct canbus_msg send;
send.id = CANBUS_ID_ADMIN_RESP;
send.dlc = 8;
send.data[0] = CANBUS_RESP_NEED_NODEID;
memcpy(&send.data[1], CanData.uuid, sizeof(CanData.uuid));
send.data[7] = CANBUS_CMD_SET_KLIPPER_NODEID;
// Send with retry
for (;;) {
int ret = canbus_send(&send);
if (ret >= 0)
return;
}
}
static void
can_id_conflict(void)
{
CanData.assigned_id = 0;
canbus_set_filter(CanData.assigned_id);
shutdown("Another CAN node assigned this ID");
}
static void
can_process_set_klipper_nodeid(struct canbus_msg *msg)
{
if (msg->dlc < 8)
return;
uint32_t newid = can_decode_nodeid(msg->data[7]);
if (can_check_uuid(msg)) {
if (newid != CanData.assigned_id) {
CanData.assigned_id = newid;
canbus_set_filter(CanData.assigned_id);
}
} else if (newid == CanData.assigned_id) {
can_id_conflict();
}
}
static void
can_process_request_bootloader(struct canbus_msg *msg)
{
if (!can_check_uuid(msg))
return;
try_request_canboot();
}
// Handle an "admin" command
static void
can_process_admin(struct canbus_msg *msg)
{
if (!msg->dlc)
return;
switch (msg->data[0]) {
case CANBUS_CMD_QUERY_UNASSIGNED:
can_process_query_unassigned(msg);
break;
case CANBUS_CMD_SET_KLIPPER_NODEID:
can_process_set_klipper_nodeid(msg);
break;
case CANBUS_CMD_REQUEST_BOOTLOADER:
can_process_request_bootloader(msg);
break;
}
}
/****************************************************************
* CAN packet reading
****************************************************************/
static void
canbus_notify_rx(void)
{
sched_wake_task(&CanData.rx_wake);
}
DECL_CONSTANT("RECEIVE_WINDOW", ARRAY_SIZE(CanData.receive_buf));
// Handle incoming data (called from IRQ handler)
void
canbus_process_data(struct canbus_msg *msg)
{
uint32_t id = msg->id;
if (CanData.assigned_id && id == CanData.assigned_id) {
// Add to incoming data buffer
int rpos = CanData.receive_pos;
uint32_t len = CANMSG_DATA_LEN(msg);
if (len > sizeof(CanData.receive_buf) - rpos)
len = sizeof(CanData.receive_buf) - rpos;
memcpy(&CanData.receive_buf[rpos], msg->data, len);
CanData.receive_pos = rpos + len;
canbus_notify_rx();
} else if (id == CANBUS_ID_ADMIN
|| (CanData.assigned_id && id == CanData.assigned_id + 1)) {
// Add to admin command queue
uint32_t pushp = CanData.admin_push_pos;
if (pushp >= CanData.admin_pull_pos + ARRAY_SIZE(CanData.admin_queue))
// No space - drop message
return;
uint32_t pos = pushp % ARRAY_SIZE(CanData.admin_queue);
memcpy(&CanData.admin_queue[pos], msg, sizeof(*msg));
CanData.admin_push_pos = pushp + 1;
canbus_notify_rx();
}
canserial_process_data(msg);
}
// Remove from the receive buffer the given number of bytes
static void
console_pop_input(int len)
{
int copied = 0;
for (;;) {
int rpos = readb(&CanData.receive_pos);
int needcopy = rpos - len;
if (needcopy) {
memmove(&CanData.receive_buf[copied]
, &CanData.receive_buf[copied + len], needcopy - copied);
copied = needcopy;
canbus_notify_rx();
}
irqstatus_t flag = irq_save();
if (rpos != readb(&CanData.receive_pos)) {
// Raced with irq handler - retry
irq_restore(flag);
continue;
}
CanData.receive_pos = needcopy;
irq_restore(flag);
break;
}
}
// Task to process incoming commands and admin messages
void
canbus_rx_task(void)
{
if (!sched_check_wake(&CanData.rx_wake))
return;
// Process pending admin messages
for (;;) {
uint32_t pushp = readl(&CanData.admin_push_pos);
uint32_t pullp = CanData.admin_pull_pos;
if (pushp == pullp)
break;
uint32_t pos = pullp % ARRAY_SIZE(CanData.admin_queue);
struct canbus_msg *msg = &CanData.admin_queue[pos];
uint32_t id = msg->id;
if (CanData.assigned_id && id == CanData.assigned_id + 1)
can_id_conflict();
else if (id == CANBUS_ID_ADMIN)
can_process_admin(msg);
CanData.admin_pull_pos = pullp + 1;
}
// Check for a complete message block and process it
uint_fast8_t rpos = readb(&CanData.receive_pos), pop_count;
int ret = command_find_block(CanData.receive_buf, rpos, &pop_count);
if (ret > 0)
command_dispatch(CanData.receive_buf, pop_count);
if (ret) {
console_pop_input(pop_count);
if (ret > 0)
command_send_ack();
}
}
DECL_TASK(canbus_rx_task);
/****************************************************************
* Setup and shutdown
****************************************************************/
void
command_get_canbus_id(uint32_t *args)
{
sendf("canbus_id canbus_uuid=%.*s canbus_nodeid=%u"
, sizeof(CanData.uuid), CanData.uuid, can_get_nodeid());
}
DECL_COMMAND_FLAGS(command_get_canbus_id, HF_IN_SHUTDOWN, "get_canbus_id");
void
canbus_set_uuid(uint8_t *raw_uuid, uint32_t raw_uuid_len)
{
uint64_t hash = fasthash64(raw_uuid, raw_uuid_len, 0xA16231A7);
memcpy(CanData.uuid, &hash, sizeof(CanData.uuid));
canbus_notify_rx();
}
void
canbus_shutdown(void)
{
canbus_notify_tx();
canbus_notify_rx();
}
DECL_SHUTDOWN(canbus_shutdown);

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@ -3,9 +3,6 @@
#include <stdint.h> // uint32_t
#define CANBUS_ID_ADMIN 0x3f0
#define CANBUS_ID_ADMIN_RESP 0x3f1
struct canbus_msg {
uint32_t id;
uint32_t dlc;
@ -27,6 +24,5 @@ void canbus_set_filter(uint32_t id);
// canbus.c
void canbus_notify_tx(void);
void canbus_process_data(struct canbus_msg *msg);
void canbus_set_uuid(uint8_t *raw_uuid, uint32_t raw_uuid_len);
#endif // canbus.h

343
src/generic/canserial.c Normal file
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@ -0,0 +1,343 @@
// Generic handling of serial over CAN support
//
// Copyright (C) 2019 Eug Krashtan <eug.krashtan@gmail.com>
// Copyright (C) 2020 Pontus Borg <glpontus@gmail.com>
// Copyright (C) 2021 Kevin O'Connor <kevin@koconnor.net>
//
// This file may be distributed under the terms of the GNU GPLv3 license.
#include <string.h> // memcpy
#include "board/armcm_reset.h" // try_request_canboot
#include "board/io.h" // readb
#include "board/irq.h" // irq_save
#include "board/misc.h" // console_sendf
#include "canbus.h" // canbus_set_uuid
#include "canserial.h" // canserial_notify_tx
#include "command.h" // DECL_CONSTANT
#include "fasthash.h" // fasthash64
#include "sched.h" // sched_wake_task
#define CANBUS_UUID_LEN 6
// Global storage
static struct canbus_data {
uint32_t assigned_id;
uint8_t uuid[CANBUS_UUID_LEN];
// Tx data
struct task_wake tx_wake;
uint8_t transmit_pos, transmit_max;
// Rx data
struct task_wake rx_wake;
uint8_t receive_pos;
uint32_t admin_pull_pos, admin_push_pos;
// Transfer buffers
struct canbus_msg admin_queue[8];
uint8_t transmit_buf[96];
uint8_t receive_buf[192];
} CanData;
/****************************************************************
* Data transmission over CAN
****************************************************************/
void
canserial_notify_tx(void)
{
sched_wake_task(&CanData.tx_wake);
}
void
canserial_tx_task(void)
{
if (!sched_check_wake(&CanData.tx_wake))
return;
uint32_t id = CanData.assigned_id;
if (!id) {
CanData.transmit_pos = CanData.transmit_max = 0;
return;
}
struct canbus_msg msg;
msg.id = id + 1;
uint32_t tpos = CanData.transmit_pos, tmax = CanData.transmit_max;
for (;;) {
int avail = tmax - tpos, now = avail > 8 ? 8 : avail;
if (avail <= 0)
break;
msg.dlc = now;
memcpy(msg.data, &CanData.transmit_buf[tpos], now);
int ret = canserial_send(&msg);
if (ret <= 0)
break;
tpos += now;
}
CanData.transmit_pos = tpos;
}
DECL_TASK(canserial_tx_task);
// Encode and transmit a "response" message
void
console_sendf(const struct command_encoder *ce, va_list args)
{
// Verify space for message
uint32_t tpos = CanData.transmit_pos, tmax = CanData.transmit_max;
if (tpos >= tmax)
CanData.transmit_pos = CanData.transmit_max = tpos = tmax = 0;
uint32_t max_size = ce->max_size;
if (tmax + max_size > sizeof(CanData.transmit_buf)) {
if (tmax + max_size - tpos > sizeof(CanData.transmit_buf))
// Not enough space for message
return;
// Move buffer
tmax -= tpos;
memmove(&CanData.transmit_buf[0], &CanData.transmit_buf[tpos], tmax);
CanData.transmit_pos = tpos = 0;
CanData.transmit_max = tmax;
}
// Generate message
uint32_t msglen = command_encode_and_frame(&CanData.transmit_buf[tmax]
, ce, args);
// Start message transmit
CanData.transmit_max = tmax + msglen;
canserial_notify_tx();
}
/****************************************************************
* CAN "admin" command handling
****************************************************************/
// Available commands and responses
#define CANBUS_CMD_QUERY_UNASSIGNED 0x00
#define CANBUS_CMD_SET_KLIPPER_NODEID 0x01
#define CANBUS_CMD_REQUEST_BOOTLOADER 0x02
#define CANBUS_RESP_NEED_NODEID 0x20
// Helper to verify a UUID in a command matches this chip's UUID
static int
can_check_uuid(struct canbus_msg *msg)
{
return (msg->dlc >= 7
&& memcmp(&msg->data[1], CanData.uuid, sizeof(CanData.uuid)) == 0);
}
// Helpers to encode/decode a CAN identifier to a 1-byte "nodeid"
static int
can_get_nodeid(void)
{
if (!CanData.assigned_id)
return 0;
return (CanData.assigned_id - 0x100) >> 1;
}
static uint32_t
can_decode_nodeid(int nodeid)
{
return (nodeid << 1) + 0x100;
}
static void
can_process_query_unassigned(struct canbus_msg *msg)
{
if (CanData.assigned_id)
return;
struct canbus_msg send;
send.id = CANBUS_ID_ADMIN_RESP;
send.dlc = 8;
send.data[0] = CANBUS_RESP_NEED_NODEID;
memcpy(&send.data[1], CanData.uuid, sizeof(CanData.uuid));
send.data[7] = CANBUS_CMD_SET_KLIPPER_NODEID;
// Send with retry
for (;;) {
int ret = canserial_send(&send);
if (ret >= 0)
return;
}
}
static void
can_id_conflict(void)
{
CanData.assigned_id = 0;
canserial_set_filter(CanData.assigned_id);
shutdown("Another CAN node assigned this ID");
}
static void
can_process_set_klipper_nodeid(struct canbus_msg *msg)
{
if (msg->dlc < 8)
return;
uint32_t newid = can_decode_nodeid(msg->data[7]);
if (can_check_uuid(msg)) {
if (newid != CanData.assigned_id) {
CanData.assigned_id = newid;
canserial_set_filter(CanData.assigned_id);
}
} else if (newid == CanData.assigned_id) {
can_id_conflict();
}
}
static void
can_process_request_bootloader(struct canbus_msg *msg)
{
if (!can_check_uuid(msg))
return;
try_request_canboot();
}
// Handle an "admin" command
static void
can_process_admin(struct canbus_msg *msg)
{
if (!msg->dlc)
return;
switch (msg->data[0]) {
case CANBUS_CMD_QUERY_UNASSIGNED:
can_process_query_unassigned(msg);
break;
case CANBUS_CMD_SET_KLIPPER_NODEID:
can_process_set_klipper_nodeid(msg);
break;
case CANBUS_CMD_REQUEST_BOOTLOADER:
can_process_request_bootloader(msg);
break;
}
}
/****************************************************************
* CAN packet reading
****************************************************************/
static void
canserial_notify_rx(void)
{
sched_wake_task(&CanData.rx_wake);
}
DECL_CONSTANT("RECEIVE_WINDOW", ARRAY_SIZE(CanData.receive_buf));
// Handle incoming data (called from IRQ handler)
void
canserial_process_data(struct canbus_msg *msg)
{
uint32_t id = msg->id;
if (CanData.assigned_id && id == CanData.assigned_id) {
// Add to incoming data buffer
int rpos = CanData.receive_pos;
uint32_t len = CANMSG_DATA_LEN(msg);
if (len > sizeof(CanData.receive_buf) - rpos)
len = sizeof(CanData.receive_buf) - rpos;
memcpy(&CanData.receive_buf[rpos], msg->data, len);
CanData.receive_pos = rpos + len;
canserial_notify_rx();
} else if (id == CANBUS_ID_ADMIN
|| (CanData.assigned_id && id == CanData.assigned_id + 1)) {
// Add to admin command queue
uint32_t pushp = CanData.admin_push_pos;
if (pushp >= CanData.admin_pull_pos + ARRAY_SIZE(CanData.admin_queue))
// No space - drop message
return;
uint32_t pos = pushp % ARRAY_SIZE(CanData.admin_queue);
memcpy(&CanData.admin_queue[pos], msg, sizeof(*msg));
CanData.admin_push_pos = pushp + 1;
canserial_notify_rx();
}
}
// Remove from the receive buffer the given number of bytes
static void
console_pop_input(int len)
{
int copied = 0;
for (;;) {
int rpos = readb(&CanData.receive_pos);
int needcopy = rpos - len;
if (needcopy) {
memmove(&CanData.receive_buf[copied]
, &CanData.receive_buf[copied + len], needcopy - copied);
copied = needcopy;
canserial_notify_rx();
}
irqstatus_t flag = irq_save();
if (rpos != readb(&CanData.receive_pos)) {
// Raced with irq handler - retry
irq_restore(flag);
continue;
}
CanData.receive_pos = needcopy;
irq_restore(flag);
break;
}
}
// Task to process incoming commands and admin messages
void
canserial_rx_task(void)
{
if (!sched_check_wake(&CanData.rx_wake))
return;
// Process pending admin messages
for (;;) {
uint32_t pushp = readl(&CanData.admin_push_pos);
uint32_t pullp = CanData.admin_pull_pos;
if (pushp == pullp)
break;
uint32_t pos = pullp % ARRAY_SIZE(CanData.admin_queue);
struct canbus_msg *msg = &CanData.admin_queue[pos];
uint32_t id = msg->id;
if (CanData.assigned_id && id == CanData.assigned_id + 1)
can_id_conflict();
else if (id == CANBUS_ID_ADMIN)
can_process_admin(msg);
CanData.admin_pull_pos = pullp + 1;
}
// Check for a complete message block and process it
uint_fast8_t rpos = readb(&CanData.receive_pos), pop_count;
int ret = command_find_block(CanData.receive_buf, rpos, &pop_count);
if (ret > 0)
command_dispatch(CanData.receive_buf, pop_count);
if (ret) {
console_pop_input(pop_count);
if (ret > 0)
command_send_ack();
}
}
DECL_TASK(canserial_rx_task);
/****************************************************************
* Setup and shutdown
****************************************************************/
void
command_get_canbus_id(uint32_t *args)
{
sendf("canbus_id canbus_uuid=%.*s canbus_nodeid=%u"
, sizeof(CanData.uuid), CanData.uuid, can_get_nodeid());
}
DECL_COMMAND_FLAGS(command_get_canbus_id, HF_IN_SHUTDOWN, "get_canbus_id");
void
canserial_set_uuid(uint8_t *raw_uuid, uint32_t raw_uuid_len)
{
uint64_t hash = fasthash64(raw_uuid, raw_uuid_len, 0xA16231A7);
memcpy(CanData.uuid, &hash, sizeof(CanData.uuid));
canserial_notify_rx();
}
void
canserial_shutdown(void)
{
canserial_notify_tx();
canserial_notify_rx();
}
DECL_SHUTDOWN(canserial_shutdown);

19
src/generic/canserial.h Normal file
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@ -0,0 +1,19 @@
#ifndef __CANSERIAL_H__
#define __CANSERIAL_H__
#include <stdint.h> // uint32_t
#define CANBUS_ID_ADMIN 0x3f0
#define CANBUS_ID_ADMIN_RESP 0x3f1
// callbacks provided by board specific code
struct canbus_msg;
int canserial_send(struct canbus_msg *msg);
void canserial_set_filter(uint32_t id);
// canserial.c
void canserial_notify_tx(void);
void canserial_process_data(struct canbus_msg *msg);
void canserial_set_uuid(uint8_t *raw_uuid, uint32_t raw_uuid_len);
#endif // canbus.h

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@ -59,10 +59,10 @@ serial-src-$(CONFIG_MACH_STM32F0) := stm32/stm32f0_serial.c
serial-src-$(CONFIG_MACH_STM32G0) := stm32/stm32f0_serial.c
serial-src-$(CONFIG_MACH_STM32H7) := stm32/stm32h7_serial.c
src-$(CONFIG_SERIAL) += $(serial-src-y) generic/serial_irq.c
canbus-src-y := generic/canbus.c ../lib/fast-hash/fasthash.c
canbus-src-y := generic/canserial.c ../lib/fast-hash/fasthash.c
canbus-src-$(CONFIG_HAVE_STM32_CANBUS) += stm32/can.c
canbus-src-$(CONFIG_HAVE_STM32_FDCANBUS) += stm32/fdcan.c
src-$(CONFIG_CANSERIAL) += $(canbus-src-y) stm32/chipid.c
src-$(CONFIG_CANSERIAL) += $(canbus-src-y) generic/canbus.c stm32/chipid.c
src-$(CONFIG_HAVE_GPIO_HARD_PWM) += stm32/hard_pwm.c
# Binary output file rules

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@ -12,6 +12,7 @@
#include "command.h" // DECL_CONSTANT_STR
#include "generic/armcm_boot.h" // armcm_enable_irq
#include "generic/canbus.h" // canbus_notify_tx
#include "generic/canserial.h" // CANBUS_ID_ADMIN
#include "internal.h" // enable_pclock
#include "sched.h" // DECL_INIT

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@ -4,7 +4,7 @@
//
// This file may be distributed under the terms of the GNU GPLv3 license.
#include "generic/canbus.h" // canbus_set_uuid
#include "generic/canserial.h" // canserial_set_uuid
#include "generic/usb_cdc.h" // usb_fill_serial
#include "generic/usbstd.h" // usb_string_descriptor
#include "internal.h" // UID_BASE
@ -29,7 +29,7 @@ chipid_init(void)
if (CONFIG_USB_SERIAL_NUMBER_CHIPID)
usb_fill_serial(&cdc_chipid.desc, ARRAY_SIZE(cdc_chipid.data)
, (void*)UID_BASE);
if (CONFIG_CANSERIAL)
canbus_set_uuid((void*)UID_BASE, CHIP_UID_LEN);
if (CONFIG_CANBUS)
canserial_set_uuid((void*)UID_BASE, CHIP_UID_LEN);
}
DECL_INIT(chipid_init);

View File

@ -12,6 +12,7 @@
#include "command.h" // DECL_CONSTANT_STR
#include "generic/armcm_boot.h" // armcm_enable_irq
#include "generic/canbus.h" // canbus_notify_tx
#include "generic/canserial.h" // CANBUS_ID_ADMIN
#include "generic/serial_irq.h" // serial_rx_byte
#include "internal.h" // enable_pclock
#include "sched.h" // DECL_INIT