NFC: st-nci: Add support for proprietary commands
Add support for proprietary commands useful mainly for
factory testings. Here is a list:
- FACTORY_MODE: Allow to set the driver into a mode where
no secure element are activated. It does not consider any
NFC_ATTR_VENDOR_DATA.
- HCI_CLEAR_ALL_PIPES: Allow to execute a HCI clear all pipes
command. It does not consider any NFC_ATTR_VENDOR_DATA.
- HCI_DM_PUT_DATA: Allow to configure specific CLF registry
like for example RF trimmings or low level drivers
configurations (I2C, SPI, SWP).
- HCI_DM_UPDATE_AID: Allow to configure an AID routing into the
CLF routing table following RF technology, CLF mode or protocol.
- HCI_DM_GET_INFO: Allow to retrieve CLF information.
- HCI_DM_GET_DATA: Allow to retrieve CLF configurable data such as
low level drivers configurations or RF trimmings.
- HCI_DM_DIRECT_LOAD: Allow to load a firmware into the CLF.
A complete packet can be more than 8KB.
- HCI_DM_RESET: Allow to run a CLF reset in order to "commit" CLF
configuration changes without CLF power off.
- HCI_GET_PARAM: Allow to retrieve an HCI CLF parameter (for example
the white list).
- HCI_DM_FIELD_GENERATOR: Allow to generate different kind of RF
technology. When using this command to anti-collision is done.
- HCI_LOOPBACK: Allow to echo a command and test the Dh to CLF
connectivity.
- HCI_DM_VDC_MEASUREMENT_VALUE: Allow to measure the field applied
on the CLF antenna. A value between 0 and 0x0f is returned. 0 is
maximum.
- HCI_DM_FWUPD_START: Allow to put CLF into firmware update mode.
It is a specific CLF command as there is no GPIO for this.
- HCI_DM_FWUPD_END: Allow to complete firmware update.
- HCI_DM_VDC_VALUE_COMPARISON: Allow to compare the field applied
on the CLF antenna to a reference value.
- MANUFACTURER_SPECIFIC: Allow to retrieve manufacturer specific data
received during a NCI_CORE_INIT_CMD.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/nfc/st-nci/se.c b/drivers/nfc/st-nci/se.c
index 4c98346..7ec4dba 100644
--- a/drivers/nfc/st-nci/se.c
+++ b/drivers/nfc/st-nci/se.c
@@ -39,7 +39,6 @@
#define ST_NCI_ESE_HOST_ID 0xc0
/* Gates */
-#define ST_NCI_DEVICE_MGNT_GATE 0x01
#define ST_NCI_APDU_READER_GATE 0xf0
#define ST_NCI_CONNECTIVITY_GATE 0x41
@@ -114,6 +113,8 @@
{NCI_HCI_IDENTITY_MGMT_GATE, NCI_HCI_INVALID_PIPE,
ST_NCI_HOST_CONTROLLER_ID},
+ {NCI_HCI_LOOPBACK_GATE, NCI_HCI_INVALID_PIPE,
+ ST_NCI_HOST_CONTROLLER_ID},
/* Secure element pipes are created by secure element host */
{ST_NCI_CONNECTIVITY_GATE, NCI_HCI_DO_NOT_OPEN_PIPE,
@@ -376,8 +377,10 @@
st_nci_hci_apdu_reader_event_received(ndev, event, skb);
break;
case ST_NCI_CONNECTIVITY_GATE:
- st_nci_hci_connectivity_event_received(ndev, host, event,
- skb);
+ st_nci_hci_connectivity_event_received(ndev, host, event, skb);
+ break;
+ case NCI_HCI_LOOPBACK_GATE:
+ st_nci_hci_loopback_event_received(ndev, event, skb);
break;
}
}
@@ -509,6 +512,7 @@
static int st_nci_hci_network_init(struct nci_dev *ndev)
{
+ struct st_nci_info *info = nci_get_drvdata(ndev);
struct core_conn_create_dest_spec_params *dest_params;
struct dest_spec_params spec_params;
struct nci_conn_info *conn_info;
@@ -561,10 +565,17 @@
if (r != NCI_HCI_ANY_OK)
goto free_dest_params;
- r = nci_nfcee_mode_set(ndev, ndev->hci_dev->conn_info->id,
- NCI_NFCEE_ENABLE);
- if (r != NCI_STATUS_OK)
- goto free_dest_params;
+ /*
+ * In factory mode, we prevent secure elements activation
+ * by disabling nfcee on the current HCI connection id.
+ * HCI will be used here only for proprietary commands.
+ */
+ if (test_bit(ST_NCI_FACTORY_MODE, &info->flags))
+ r = nci_nfcee_mode_set(ndev, ndev->hci_dev->conn_info->id,
+ NCI_NFCEE_DISABLE);
+ else
+ r = nci_nfcee_mode_set(ndev, ndev->hci_dev->conn_info->id,
+ NCI_NFCEE_ENABLE);
free_dest_params:
kfree(dest_params);
@@ -578,6 +589,7 @@
u8 param[2];
int r;
int se_count = 0;
+ struct st_nci_info *info = nci_get_drvdata(ndev);
pr_debug("st_nci_discover_se\n");
@@ -585,6 +597,9 @@
if (r != 0)
return r;
+ if (test_bit(ST_NCI_FACTORY_MODE, &info->flags))
+ return 0;
+
param[0] = ST_NCI_UICC_HOST_ID;
param[1] = ST_NCI_HCI_HOST_ID_ESE;
r = nci_hci_set_param(ndev, NCI_HCI_ADMIN_GATE,