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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> |
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| .. | ||
| microread | ||
| nfcmrvl | ||
| pn544 | ||
| st21nfca | ||
| st21nfcb | ||
| Kconfig | ||
| Makefile | ||
| mei_phy.c | ||
| mei_phy.h | ||
| nfcsim.c | ||
| nfcwilink.c | ||
| pn533.c | ||
| port100.c | ||
| trf7970a.c | ||