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Introduce new eth_receive routine

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The purpose of this routine is receiving a single network frame, outside of
U-Boot's NetLoop(). Exporting it to standalone programs that run on top of
U-Boot will let them utilise networking facilities. For sending a raw frame
the already existing eth_send() can be used.

The direct consumer of this routine is the newly introduced API layer for
external applications (enabled with CONFIG_API).

Signed-off-by: Rafal Jaworowski <raj@semihalf.com>
Signed-off-by: Piotr Kruszynski <ppk@semihalf.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
This commit is contained in:
Rafal Jaworowski 2007-12-27 18:19:02 +01:00 • committed by Ben Warren
parent 5c740711f0
commit f85b607105
3 changed files with 71 additions and 0 deletions
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10
net/net.c
View file

@ -137,6 +137,9 @@ uchar NetBcastAddr[6] = /* Ethernet bcast address */
{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
uchar NetEtherNullAddr[6] =
{ 0, 0, 0, 0, 0, 0 };
#ifdef CONFIG_API
void (*push_packet)(volatile void *, int len) = 0;
#endif
#if defined(CONFIG_CMD_CDP)
uchar NetCDPAddr[6] = /* Ethernet bcast address */
{ 0x01, 0x00, 0x0c, 0xcc, 0xcc, 0xcc };
@ -1161,6 +1164,13 @@ NetReceive(volatile uchar * inpkt, int len)
if (len < ETHER_HDR_SIZE)
return;
#ifdef CONFIG_API
if (push_packet) {
(*push_packet)(inpkt, len);
return;
}
#endif
#if defined(CONFIG_CMD_CDP)
/* keep track if packet is CDP */
iscdp = memcmp(et->et_dest, NetCDPAddr, 6) == 0;