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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 <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
10 lines
227 B
Makefile
10 lines
227 B
Makefile
#
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# Makefile for ST21NFCB NCI based NFC driver
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#
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st21nfcb_nci-objs = ndlc.o st21nfcb.o st21nfcb_se.o
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obj-$(CONFIG_NFC_ST21NFCB) += st21nfcb_nci.o
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st21nfcb_i2c-objs = i2c.o
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obj-$(CONFIG_NFC_ST21NFCB_I2C) += st21nfcb_i2c.o
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