mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-24 19:16:45 +07:00
8ae01f7967
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> |
||
|---|---|---|
| .. | ||
| i2c.c | ||
| Kconfig | ||
| Makefile | ||
| ndlc.c | ||
| ndlc.h | ||
| st21nfcb_se.c | ||
| st21nfcb_se.h | ||
| st21nfcb.c | ||
| st21nfcb.h | ||