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NFC: nci: Change NCI state machine to LISTEN_ACTIVE

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When receiving an interface activation notification, if
the RF interface is NCI_RF_INTERFACE_NFCEE_DIRECT, we
need to ignore the following parameters and change the NCI
state machine to NCI_LISTEN_ACTIVE. According to the NCI
specification, the parameters should be 0 and shall be
ignored.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Christophe Ricard 2015-02-01 22:26:18 +01:00 committed by Samuel Ortiz
parent a41bb8448e
commit 6095b0f07d
1 changed files with 8 additions and 0 deletions
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8
net/nfc/nci/ntf.c
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@ -541,6 +541,13 @@ static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev,
pr_debug("rf_tech_specific_params_len %d\n",
ntf.rf_tech_specific_params_len);
/* If this contains a value of 0x00 (NFCEE Direct RF
* Interface) then all following parameters SHALL contain a
* value of 0 and SHALL be ignored.
*/
if (ntf.rf_interface == NCI_RF_INTERFACE_NFCEE_DIRECT)
goto listen;
if (ntf.rf_tech_specific_params_len > 0) {
switch (ntf.activation_rf_tech_and_mode) {
case NCI_NFC_A_PASSIVE_POLL_MODE:
@ -653,6 +660,7 @@ static void nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev,
nci_req_complete(ndev, err);
}
} else {
listen:
/* Listen mode */
atomic_set(&ndev->state, NCI_LISTEN_ACTIVE);
if (err == NCI_STATUS_OK &&