h3n3/klipper
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

rp2040: Initial support for CANbus

Browse Source 
Add support for CANbus on the rp2040 using the can2040 "software
canbus" implementation.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2022-05-23 01:04:32 -04:00
parent f10fd7c2fa
commit a831254e83
4 changed files with 104 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
src/rp2040/chipid.c
View File

@@ -4,11 +4,10 @@
//
// This file may be distributed under the terms of the GNU GPLv3 license.
#define CHIP_UID_LEN 8
#include <string.h> // memcpy
#include "autoconf.h" // CONFIG_USB_SERIAL_NUMBER_CHIPID
#include "board/irq.h" // irq_disable, irq_enable
#include "board/canserial.h" // canserial_set_uuid
#include "generic/usb_cdc.h" // usb_fill_serial
#include "generic/usbstd.h" // usb_string_descriptor
#include "sched.h" // DECL_INIT
@@ -16,6 +15,8 @@
#include "hardware/structs/ssi.h" // ssi_hw
#include "internal.h"
#define CHIP_UID_LEN 8
static struct {
struct usb_string_descriptor desc;
uint16_t data[CHIP_UID_LEN * 2];
@@ -120,13 +121,15 @@ read_unique_id(uint8_t *out)
void
chipid_init(void)
{
if (!CONFIG_USB_SERIAL_NUMBER_CHIPID)
if (!(CONFIG_USB_SERIAL_NUMBER_CHIPID || CONFIG_CANBUS))
return;
uint8_t data[8] = {0};
read_unique_id(data);
usb_fill_serial(&cdc_chipid.desc, ARRAY_SIZE(cdc_chipid.data)
, data);
if (CONFIG_USB_SERIAL_NUMBER_CHIPID)
usb_fill_serial(&cdc_chipid.desc, ARRAY_SIZE(cdc_chipid.data), data);
if (CONFIG_CANBUS)
canserial_set_uuid(data, CHIP_UID_LEN);
}
DECL_INIT(chipid_init);