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NFC: Initial Secure Element API

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Each NFC adapter can have several links to different secure elements and
that property needs to be exported by the drivers.
A secure element link can be enabled and disabled, and card emulation will
be handled by the currently active one. Otherwise card emulation will be
host implemented.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz
2012-12-19 19:11:32 +01:00
parent 2ad554a502
commit 390a1bd853
11 changed files with 38 additions and 3 deletions
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14
include/uapi/linux/nfc.h
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@@ -67,6 +67,11 @@
* subsequent CONNECT and CC messages.
* If one of the passed parameters is wrong none is set and -EINVAL is
* returned.
* @NFC_CMD_ENABLE_SE: Enable the physical link to a specific secure element.
* Once enabled a secure element will handle card emulation mode, i.e.
* starting a poll from a device which has a secure element enabled means
* we want to do SE based card emulation.
* @NFC_CMD_DISABLE_SE: Disable the physical link to a specific secure element.
*/
enum nfc_commands {
NFC_CMD_UNSPEC,
@@ -86,6 +91,8 @@ enum nfc_commands {
NFC_EVENT_TM_DEACTIVATED,
NFC_CMD_LLC_GET_PARAMS,
NFC_CMD_LLC_SET_PARAMS,
NFC_CMD_ENABLE_SE,
NFC_CMD_DISABLE_SE,
/* private: internal use only */
__NFC_CMD_AFTER_LAST
};
@@ -114,6 +121,7 @@ enum nfc_commands {
* @NFC_ATTR_LLC_PARAM_LTO: Link TimeOut parameter
* @NFC_ATTR_LLC_PARAM_RW: Receive Window size parameter
* @NFC_ATTR_LLC_PARAM_MIUX: MIU eXtension parameter
* @NFC_ATTR_SE: Available Secure Elements
*/
enum nfc_attrs {
NFC_ATTR_UNSPEC,
@@ -134,6 +142,7 @@ enum nfc_attrs {
NFC_ATTR_LLC_PARAM_LTO,
NFC_ATTR_LLC_PARAM_RW,
NFC_ATTR_LLC_PARAM_MIUX,
NFC_ATTR_SE,
/* private: internal use only */
__NFC_ATTR_AFTER_LAST
};
@@ -172,6 +181,11 @@ enum nfc_attrs {
#define NFC_PROTO_NFC_DEP_MASK (1 << NFC_PROTO_NFC_DEP)
#define NFC_PROTO_ISO14443_B_MASK (1 << NFC_PROTO_ISO14443_B)
/* NFC Secure Elements */
#define NFC_SE_NONE 0x0
#define NFC_SE_UICC 0x1
#define NFC_SE_EMBEDDED 0x2
struct sockaddr_nfc {
sa_family_t sa_family;
__u32 dev_idx;