diff options
| author | Oliver Hartkopp <socketcan@hartkopp.net> | 2020-11-11 12:59:23 +0300 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2020-11-20 14:05:14 +0300 |
| commit | 4c01fc87675e6974d42383eba9a043123d8e13c3 (patch) | |
| tree | 5e720f890a9f4fcbde754ba967facc101ba02857 /drivers/net/can/usb/gs_usb.c | |
| parent | e8e73562ce0b24d691ad35df3de34b324248458f (diff) | |
| download | linux-4c01fc87675e6974d42383eba9a043123d8e13c3.tar.xz | |
can: drivers: add len8_dlc support for various CAN adapters
Support the Classical CAN raw DLC functionality to send and receive DLC values
from 9 .. 15 on various Classical CAN capable CAN network drivers:
- sja1000
- gs_usb
- pcan_usb
- pcan_usb_fd
- usb_8dev
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/r/20201111095923.2535-1-socketcan@hartkopp.net
[mkl: usb_8dev: changed indention]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/usb/gs_usb.c')
| -rw-r--r-- | drivers/net/can/usb/gs_usb.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c index d6a68b7046eb..b3431c3feba1 100644 --- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -331,7 +331,7 @@ static void gs_usb_receive_bulk_callback(struct urb *urb) cf->can_id = hf->can_id; - cf->len = can_cc_dlc2len(hf->can_dlc); + can_frame_set_cc_len(cf, hf->can_dlc, dev->can.ctrlmode); memcpy(cf->data, hf->data, 8); /* ERROR frames tell us information about the controller */ @@ -504,7 +504,8 @@ static netdev_tx_t gs_can_start_xmit(struct sk_buff *skb, cf = (struct can_frame *)skb->data; hf->can_id = cf->can_id; - hf->can_dlc = cf->len; + hf->can_dlc = can_get_cc_dlc(cf, dev->can.ctrlmode); + memcpy(hf->data, cf->data, cf->len); usb_fill_bulk_urb(urb, dev->udev, @@ -858,7 +859,7 @@ static struct gs_can *gs_make_candev(unsigned int channel, dev->can.bittiming_const = &dev->bt_const; dev->can.do_set_bittiming = gs_usb_set_bittiming; - dev->can.ctrlmode_supported = 0; + dev->can.ctrlmode_supported = CAN_CTRLMODE_CC_LEN8_DLC; if (bt_const->feature & GS_CAN_FEATURE_LISTEN_ONLY) dev->can.ctrlmode_supported |= CAN_CTRLMODE_LISTENONLY; |