summaryrefslogtreecommitdiffstats
path: root/include/net/nfc/nci.h
diff options
context:
space:
mode:
authorEric Lapuyade <eric.lapuyade@linux.intel.com>2013-09-05 11:02:21 +0200
committerSamuel Ortiz <sameo@linux.intel.com>2013-09-25 01:35:41 +0200
commitfa544fff62aeeb0cf8008c61077aae10fb1407a9 (patch)
tree42e24efbcaca24ad48bde91259696649388483d3 /include/net/nfc/nci.h
parent08f13acff960d6c95a371f67ab98785aa9969179 (diff)
downloadblackbird-op-linux-fa544fff62aeeb0cf8008c61077aae10fb1407a9.tar.gz
blackbird-op-linux-fa544fff62aeeb0cf8008c61077aae10fb1407a9.zip
NFC: NCI: Simplify NCI SPI to become a simple framing/checking layer
NCI SPI layer should not manage the nci dev, this is the job of the nci chipset driver. This layer should be limited to frame/deframe nci packets, and optionnaly check integrity (crc) and manage the ack/nak protocol. The NCI SPI must not be mixed up with an NCI dev. spi_[dev|device] are therefore renamed to a simple spi for more clarity. The header and crc sizes are moved to nci.h so that drivers can use them to reserve space in outgoing skbs. nci_spi_send() is exported to be accessible by drivers. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include/net/nfc/nci.h')
-rw-r--r--include/net/nfc/nci.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/net/nfc/nci.h b/include/net/nfc/nci.h
index 88785e5c6b2c..e5aa5acafea0 100644
--- a/include/net/nfc/nci.h
+++ b/include/net/nfc/nci.h
@@ -166,6 +166,10 @@
#define NCI_GID_NFCEE_MGMT 0x2
#define NCI_GID_PROPRIETARY 0xf
+/* ----- NCI over SPI head/crc(tail) room needed for outgoing frames ----- */
+#define NCI_SPI_HDR_LEN 4
+#define NCI_SPI_CRC_LEN 2
+
/* ---- NCI Packet structures ---- */
#define NCI_CTRL_HDR_SIZE 3
#define NCI_DATA_HDR_SIZE 3
OpenPOWER on IntegriCloud