From 8ae01f7967718ac9ed800a99964f88c0c8b07e11 Mon Sep 17 00:00:00 2001 From: Christophe Ricard Date: Sun, 1 Feb 2015 22:26:15 +0100 Subject: [PATCH] NFC: st21nfcb: Add support for secure element MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The st21nfcb chipset has 3 SWP (Single Wire Protocol) lines and supports up to 3 secure elements (UICC/eSE and µSD in the future). Some st21nfcb firmware does not support the nci command nci_nfcee_mode_set(NCI_NFCEE_DISABLE). For this reason, we assume 2 secures elements are always present (UICC and eSE). They will be added to the SE list once successfully activated and they will be available only after running through enable_se handler or when the poll in listen mode is started. During initialization, the white_list will be always set assuming both UICC & eSE are present. On eSE activation, the ATR bytes are fetched to build the command exchange timeout. The se_io hook will allow to transfer data over SWP. 2 kind of events may appear data is sent over: - ST21NFCB_EVT_TRANSMIT_DATA when receiving an apdu answer - ST21NFCB_EVT_WTX_REQUEST when the secure element needs more time than expected to process a command. If this timeout expires, we send a software reset, and then a hardware one if it still fails. Signed-off-by: Christophe Ricard Signed-off-by: Samuel Ortiz --- Reading git-format-patch failed