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Fix for issue 439. UDP API changed to derive from Stream. The old sendPacket and readPacket calls have been removed, and replaced with Stream-derived alternatives which provide more commonality with other communications classes and to allow both buffered and full-packet-at-a-time uses. Also includes the introduction of an IPAddress class to make passing them around easier (and require fewer pointers to be exposed)

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This commit is contained in:
amcewen
2011-01-10 14:54:29 +00:00
parent 5009fc15fa
commit 88e858f6e3
11 changed files with 359 additions and 120 deletions
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55
libraries/Ethernet/utility/socket.cpp
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@ -344,3 +344,58 @@ uint16_t igmpsend(SOCKET s, const uint8_t * buf, uint16_t len)
return ret;
}
uint16_t bufferData(SOCKET s, uint16_t offset, const uint8_t* buf, uint16_t len)
{
uint16_t ret =0;
if (len > W5100.getTXFreeSize(s))
{
ret = W5100.getTXFreeSize(s); // check size not to exceed MAX size.
}
else
{
ret = len;
}
W5100.send_data_processing_offset(s, offset, buf, ret);
return ret;
}
int startUDP(SOCKET s, uint8_t* addr, uint16_t port)
{
if
(
((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && (addr[3] == 0x00)) ||
((port == 0x00))
)
{
return 0;
}
else
{
W5100.writeSnDIPR(s, addr);
W5100.writeSnDPORT(s, port);
return 1;
}
}
int sendUDP(SOCKET s)
{
W5100.execCmdSn(s, Sock_SEND);
/* +2008.01 bj */
while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK )
{
if (W5100.readSnIR(s) & SnIR::TIMEOUT)
{
/* +2008.01 [bj]: clear interrupt */
W5100.writeSnIR(s, (SnIR::SEND_OK|SnIR::TIMEOUT));
return 0;
}
}
/* +2008.01 bj */
W5100.writeSnIR(s, SnIR::SEND_OK);
/* Sent ok */
return 1;
}