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* NFC: Call llcp_add_header properly when sending LLCP DM or DISCSamuel Ortiz2012-04-12
| | | | | | | dsap and ssap were swapped when sending DN or DISC. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Fix LLCP TLV building routineSamuel Ortiz2012-04-12
| | | | | | | The if logic could lead to zero length TLVs. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: No need to apply twice the modulo op to LLCP's recv_nSamuel Ortiz2012-04-12
| | | | | | | recv_n is set properly when receiving an HDLC frame. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Dump LLCP framesSamuel Ortiz2012-04-12
| | | | | | | At KERN_DEBUG level. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Fix the LLCP Tx fragmentation loopSamuel Ortiz2012-04-11
| | | | | | Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: LLCP code identation fixesSamuel Ortiz2012-03-06
| | | | | Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Fix LLCP sockets releasing pathSamuel Ortiz2012-03-06
| | | | | | | | | | | The socket local pointer needs to be set to NULL when the adapter is removed or the MAC goes down. If the socket release code is called after such an event, the socket reference count still needs to be decreased in order for the socket to eventually be freed. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Remove the rf mode parameter from the DEP link up routineSamuel Ortiz2012-03-06
| | | | | | | | | When calling nfc_dep_link_up, we implicitely are in initiator mode. Which means we also can provide the general bytes as a function argument, as all drivers will eventually request them. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: SN is not an invalid GT valueSamuel Ortiz2012-03-06
| | | | | | | | We just don't do anything with it when parsing the general bytes. We handle it from the CONNECT reception code. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Unlink LLCP child sockets from llcp_sock_releaseSamuel Ortiz2012-03-06
| | | | | | | | The parent socket (the bound one) could be freed before its children, so we should unlink the children without trying to reach it through the parent. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Fragment LLCP I framesSamuel Ortiz2012-03-06
| | | | | | | | Based on the receiver MIU, we have to fragment the frame to be transmitted. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Set MIU and RW values from CONNECT and CC LLCP framesSamuel Ortiz2012-03-06
| | | | | | | | We use the maximum values for the LLCP Maximum Information Unit and Receive Window Size. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Send LLCP RR frames to acknowledge received I framesSamuel Ortiz2012-03-06
| | | | | | | | In order to acknowledge an I frame, we have to either queue pending local I frames or queue a receiver ready frame. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Set the right LLCP N(R) value for I framesSamuel Ortiz2012-03-06
| | | | | Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Clear LLCP SDPs whan MAC goes downSamuel Ortiz2012-03-06
| | | | | Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Fix bitops usage in LLCPSamuel Ortiz2012-03-06
| | | | | Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: LLCP socket sendmsg implemetationSamuel Ortiz2012-03-06
| | | | | Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Handle Receiver Not Ready LLCP frameSamuel Ortiz2012-03-06
| | | | | Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Factorize the I frame queueing routineSamuel Ortiz2012-03-06
| | | | | | | This one will be called from the I frame command sending. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: use kfree_skb() for sk_buffsDan Carpenter2011-12-19
| | | | | | | | | This is a struct sk_buff pointer and it should be freed with kfree_skb() instead of kfree(). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: double unlock in nfc_llcp_recv_connect()Dan Carpenter2011-12-19
| | | | | | | | | We unlock inside the if block on the other side of this if else statement. It could result in calling mutex_unlock() twice. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Initial LLCP supportSamuel Ortiz2011-12-14
This patch is an initial implementation for the NFC Logical Link Control protocol. It's also known as NFC peer to peer mode. This is a basic implementation as it lacks SDP (services Discovery Protocol), frames aggregation support, and frame rejecion parsing. Follow up patches will implement those missing features. This code has been tested against a Nexus S phone implementing LLCP 1.0. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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