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  1. 29 Jan, 2015 6 commits
  3. 28 Jan, 2015 30 commits
  5. 27 Jan, 2015 4 commits
    • Robert Dolca's avatar
      NFC: PN544: GPIO access that may sleep · 75dda421
      Robert Dolca authored 
      gpio_set_value was replaced with gpio_set_value_cansleep in order
to allow GPIO access that may sleep. This is particularelly useful
when GPIO is accessed using busses like I2C, SPI, USB
Signed-off-by: default avatarRobert Dolca <robert.dolca@intel.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
      75dda421
    • Christophe Ricard's avatar
      NFC: dts: st21nfca: Document ese-present & uicc-present DTS property · 3b060532
      Christophe Ricard authored 
      On st21nfca, the mechanism to enable a secure element needs to add 2
properties in order manage the SWP line correctly.

Document ese-present and uicc-present properties.
Signed-off-by: default avatarChristophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
      3b060532
    • Christophe Ricard's avatar
      NFC: st21nfca: Adding support for secure element · 2130fb97
      Christophe Ricard authored 
      st21nfca has 1 physical SWP line and can support up to 2 secure elements
(UICC & eSE) thanks to an external switch managed with a gpio.

The platform integrator needs to specify thanks to 2 initialization
properties, uicc-present and ese-present, if it is suppose to have uicc
and/or ese. Of course if the platform does not have an external switch,
only one kind of secure element can be supported. Those parameters are
under platform integrator responsibilities.

During initialization, the white_list will be set according to those
parameters.

The discovery_se function will assume a secure element is physically
present according to uicc-present and ese-present values and will add it
to the secure element list. On ese activation, the atr is retrieved to
calculate a command exchange timeout based on the first atr(TB) value.

The se_io will allow to transfer data over SWP. 2 kind of events may appear
after a data is sent over:
- ST21NFCA_EVT_TRANSMIT_DATA when receiving an apdu answer
- ST21NFCA_EVT_WTX_REQUEST when the secure element needs more time than
expected to compute a command. If this timeout expired, a first recovery
tentative consist to send a simple software reset proprietary command.
If this tentative still fail, a second recovery tentative consist to send
a hardware reset proprietary command.
This function is only relevant for eSE like secure element.

This patch also change the way a pipe is referenced. There can be
different pipe connected to the same gate with different host destination
(ex: CONNECTIVITY). In order to keep host information every pipe are
reference with a tuple (gate, host). In order to reduce changes, we are
keeping unchanged the way a gate is addressed on the Terminal Host.
However, this is working because we consider the apdu reader gate is only
present on the eSE slot also the connectivity gate cannot give a reliable
value; it will give the latest stored pipe value.
Signed-off-by: default avatarChristophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
      2130fb97
    • Christophe Ricard's avatar
      NFC: hci: Remove nfc_hci_pipe2gate function · ec14b6c9
      Christophe Ricard authored 
      With the newly introduced pipes table hci_dev fields,
the nfc_hci_pipe2gate routine is no longer needed.
Signed-off-by: default avatarChristophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
      ec14b6c9
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