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net/can: add support of iob input 

Signed-off-by: chao an <anchao@xiaomi.com>
This commit is contained in:
chao an 2022-12-07 22:50:20 +08:00 committed by Xiang Xiao
parent d295b4e1f1
commit fc1b71b9a6
1 changed files with 45 additions and 2 deletions
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47
net/can/can_input.c
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@ -132,7 +132,7 @@ const uint8_t len_to_can_dlc[65] =
****************************************************************************/
/****************************************************************************
* Name: can_input
* Name: can_in
*
* Description:
* Handle incoming packet input
@ -151,7 +151,7 @@ const uint8_t len_to_can_dlc[65] =
*
****************************************************************************/
int can_input(struct net_driver_s *dev)
static int can_in(struct net_driver_s *dev)
{
FAR struct can_conn_s *conn = NULL;
int ret = OK;
@ -197,4 +197,47 @@ int can_input(struct net_driver_s *dev)
return ret;
}
/****************************************************************************
* Name: can_input
*
* Description:
* Handle incoming packet input
*
* Input Parameters:
* dev - The device driver structure containing the received packet
*
* Returned Value:
* OK The packet has been processed and can be deleted
* -EAGAIN There is a matching connection, but could not dispatch the packet
* yet. Useful when a packet arrives before a recv call is in
* place.
*
* Assumptions:
* This function can be called from an interrupt.
*
****************************************************************************/
int can_input(FAR struct net_driver_s *dev)
{
FAR uint8_t *buf;
int ret;
if (dev->d_iob != NULL)
{
buf = dev->d_buf;
/* Set the device buffer to l2 */
dev->d_buf = &dev->d_iob->io_data[CONFIG_NET_LL_GUARDSIZE -
NET_LL_HDRLEN(dev)];
ret = can_in(dev);
dev->d_buf = buf;
return ret;
}
return netdev_input(dev, can_in, false);
}
#endif /* CONFIG_NET && CONFIG_NET_CAN */