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add support for multichannel and CAN-FD #139

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add support for multichannel and CAN-FD #139

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marckleinebudde
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@marckleinebudde marckleinebudde commented Nov 17, 2022 •
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This PR should add multichannel and CAN-FD support. Currently it's WIP.

ryedwards
ryedwards reviewed Nov 17, 2022
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src/main.c Outdated Show resolved Hide resolved
src/main.c Outdated
struct gs_host_frame *msgbuf = calloc(CAN_QUEUE_SIZE, sizeof(struct gs_host_frame));
assert_basic(msgbuf);
can_init(channel, CAN_INTERFACE);
can_disable(channel);

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Should we come up with a better way of handling the init? Rather have some type of indexed table with [channel][CAN_INTERFACE] instead of having to add defines here for each new channel.

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You mean a read only array of structs, with a struct describing the HW configuration of a single channel. Sounds good. Which information do we need per channel?

src/usbd_gs_can.c Show resolved Hide resolved
src/usbd_gs_can.c
memcpy(&param_u32, hcan->ep0_buf, sizeof(param_u32));
if (set_term(req->wValue, param_u32) == GS_CAN_TERMINATION_UNSUPPORTED) {
USBD_CtlError(pdev, req);
}
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Termination GPIO is channel based. Should we stub that out here as part of the multichannel change?

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Should come after we thought about per channel configuration.

@marckleinebudde marckleinebudde force-pushed the multichannel branch 3 times, most recently from d1e0c57 to 203cfac Compare November 20, 2022 19:34
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It's not yet stable, canfdtest -vg can0 stops after some minutes.

ryedwards
ryedwards reviewed Nov 20, 2022
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include/can-common.h Outdated Show resolved Hide resolved
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marckleinebudde commented Nov 20, 2022 •
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changes:

  • renamed can-common.* to can_common.*

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marckleinebudde commented Nov 20, 2022 •
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changes:

  • fixed includes

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changes:

  • import latest struct gs_host_frame with flex arrays from Linux kernel
  • USB: add some support for CAN-FD

@marckleinebudde marckleinebudde changed the title add support for multichannel add support for multichannel and CAN-FD Nov 21, 2022
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marckleinebudde commented Dec 5, 2022 •
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FYI: @lichtfeind will now work on STM32G0 support.

ryedwards
ryedwards reviewed Dec 5, 2022
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include/usbd_gs_can.h Outdated Show resolved Hide resolved
@marckleinebudde marckleinebudde force-pushed the multichannel branch 4 times, most recently from 015b9a7 to eef6f97 Compare December 5, 2022 21:19
@marckleinebudde marckleinebudde mentioned this pull request Dec 15, 2022
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@lichtfeind lichtfeind mentioned this pull request Dec 15, 2022
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@marckleinebudde marckleinebudde force-pushed the multichannel branch 3 times, most recently from 99d5695 to 7f6a8b2 Compare January 16, 2023 17:07
@marckleinebudde marckleinebudde force-pushed the multichannel branch 4 times, most recently from a8a5d83 to 48b2f1d Compare June 10, 2024 09:51
lichtfeind and others added 18 commits June 10, 2024 12:01
@lichtfeind @marckleinebudde
board: legacy: introduce legacy boards and move CAN_INTERFACE to it
a17e381
@lichtfeind @marckleinebudde
board: legacy: add support for PHY power switching
3ef5ef6
@lichtfeind @marckleinebudde
board: legacy: PHY power switching: add silent pin support
dbeffb6
@marckleinebudde
board: legacy: legacy_phy_power_set: turn on silent mode during shutdown
6722baa
@lichtfeind @marckleinebudde
board: legacy: add GPIO setup
2b00879
@marckleinebudde
termination: pass can_data_t instead of only the channel number
d08e6a3
@lichtfeind @marckleinebudde
board: legacy: add support for termination_set
7fffb6e
@marckleinebudde
CMakeLists.txt: switch on STM32G0B1
e240d81
@ghent360 @marckleinebudde
re-work the led config
d238c03
@marckleinebudde
boards: move LED config from config.h -> board files
aef7489
@marckleinebudde
cmake: sort TGTxxx_LIST alphabetically
ff06b71
@marckleinebudde
config: sort STM32F042 devices alphabetically
fd7be8a
@marckleinebudde
config: sort STM32F072 devices alphabetically
bb4cf89
@marckleinebudde
config: sort STM32F407 devices alphabetically
a7e1116
@marckleinebudde
config: sort STM32G0B1 devices alphabetically
3765fa4
@marckleinebudde
boards: add NUCLEO-G0B1RE
c9ddf81
@lichtfeind @marckleinebudde
boards: add CandleLightFD
6c53ee4
@intive-hubert-denkmair @marckleinebudde
boards: add intive GmbH 2C2L-USB
267022a
IvoBCD
IvoBCD reviewed Jun 12, 2024
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src/boards/g0b1-nucleo_g0b1re.c
HAL_GPIO_Init(LEDRX_GPIO_Port, &GPIO_InitStruct);

/* FDCAN */

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FWIW - To get this to work with Adafruit "CAN Pal" TJA1051T/3 breakout board( https://www.adafruit.com/product/5708 ) , I needed to connected the transceiver silent (SLNT) pin to GND.

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In your board file you can implement the struct BoardConfig::phy_power_set callback and pull the transceiver's silent pin into the correct direction depending on the value of the enable parameter.

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@marckleinebudde, is CANFD fully supported on G0 based devices ? I have recently purchased candleLight FD from linux automation and im looking for something that works out the box.

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@marckleinebudde, is CANFD fully supported on G0 based devices ? I have recently purchased candleLight FD from linux automation and im looking for something that works out the box.

The device comes pre-flashed with a working firmware.

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