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| author | Eric Lapuyade <eric.lapuyade@linux.intel.com> | 2013-09-05 11:02:21 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2013-09-25 01:35:41 +0200 |
| commit | fa544fff62aeeb0cf8008c61077aae10fb1407a9 (patch) | |
| tree | 42e24efbcaca24ad48bde91259696649388483d3 /include/net/nfc/nci.h | |
| parent | 08f13acff960d6c95a371f67ab98785aa9969179 (diff) | |
| download | op-kernel-dev-fa544fff62aeeb0cf8008c61077aae10fb1407a9.zip op-kernel-dev-fa544fff62aeeb0cf8008c61077aae10fb1407a9.tar.gz | |
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.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/net/nfc/nci.h b/include/net/nfc/nci.h index 88785e5..e5aa5ac 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 |
