linux/include/net/nfc
Thierry Escande 1a09c56f54 NFC: digital: Add support for NFC DEP Response Waiting Time
When sending an ATR_REQ, the initiator must wait for the ATR_RES at
least 'RWT(nfcdep,activation) + dRWT(nfcdep)' and no more than
'RWT(nfcdep,activation) + dRWT(nfcdep) + dT(nfcdep,initiator)'. This
gives a timeout value between 1237 ms and 1337 ms. This patch defines
DIGITAL_ATR_RES_RWT to 1337 used for the timeout value of ATR_REQ
command.

For other DEP PDUs, the initiator must wait between 'RWT + dRWT(nfcdep)'
and 'RWT + dRWT(nfcdep) + dT(nfcdep,initiator)' where RWT is given by
the following formula: '(256 * 16 / f(c)) * 2^wt' where wt is the value
of the TO field in the ATR_RES response and is in the range between 0
and 14. This patch declares a mapping table for wt values and gives RWT
max values between 100 ms and 5049 ms.

This patch also defines DIGITAL_ATR_RES_TO_WT, the maximum wt value in
target mode, to 8.

Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-07-11 02:01:14 +02:00
..
digital.h NFC: digital: Add support for NFC DEP Response Waiting Time 2016-07-11 02:01:14 +02:00
hci.h NFC: Introduce vendor commands structures 2015-06-09 01:20:19 +02:00
llc.h NFC: hci: delete unused nfc_llc_get_rx_head_tail_room() 2016-07-04 12:14:05 +02:00
nci_core.h nfc: nci: Add nci_nfcc_loopback to the nci core 2016-05-04 01:48:16 +02:00
nci.h NFC: nfcmrvl: add i2c driver 2015-10-27 04:21:14 +01:00
nfc.h nfc: netlink: HCI event connectivity implementation 2015-12-29 19:06:20 +01:00