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 as 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@xxxxxx>
---
drivers/nfc/st-nci/Makefile | 2 +-
drivers/nfc/st-nci/core.c | 13 +-
drivers/nfc/st-nci/se.c | 29 ++-
drivers/nfc/st-nci/st-nci.h | 68 ++++++
drivers/nfc/st-nci/vendor_cmds.c | 516 +++++++++++++++++++++++++++++++++++++++
include/net/nfc/nci_core.h | 1 +
6 files changed, 619 insertions(+), 10 deletions(-)
create mode 100644 drivers/nfc/st-nci/vendor_cmds.c
diff --git a/drivers/nfc/st-nci/Makefile b/drivers/nfc/st-nci/Makefile
index 594c63d..ea40ace 100644
--- a/drivers/nfc/st-nci/Makefile
+++ b/drivers/nfc/st-nci/Makefile
@@ -2,7 +2,7 @@
# Makefile for ST21NFCB NCI based NFC driver
#
-st-nci-objs = ndlc.o core.o se.o
+st-nci-objs = ndlc.o core.o se.o vendor_cmds.o
obj-$(CONFIG_NFC_ST_NCI) += st-nci.o
st-nci_i2c-objs = i2c.o
diff --git a/drivers/nfc/st-nci/core.c b/drivers/nfc/st-nci/core.c
index 96997e6..6b083ed 100644
--- a/drivers/nfc/st-nci/core.c
+++ b/drivers/nfc/st-nci/core.c
@@ -152,14 +152,23 @@ int st_nci_probe(struct llt_ndlc *ndlc, int phy_headroom,
nci_set_drvdata(ndlc->ndev, info);
+ r = st_nci_vendor_cmds_init(ndlc->ndev);
+ if (r) {
+ pr_err("Cannot register proprietary vendor cmds\n");
+ goto err_reg_dev;
+ }
+
r = nci_register_device(ndlc->ndev);
if (r) {
pr_err("Cannot register nfc device to nci core\n");
- nci_free_device(ndlc->ndev);
- return r;
+ goto err_reg_dev;
}
return st_nci_se_init(ndlc->ndev);
+
+err_reg_dev:
+ nci_free_device(ndlc->ndev);
+ return r;
}
EXPORT_SYMBOL_GPL(st_nci_probe);
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 @@ struct st_nci_pipe_info {
#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 @@ static struct nci_hci_gate st_nci_gates[] = {
{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 @@ void st_nci_hci_event_received(struct nci_dev *ndev, u8 pipe,
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 @@ EXPORT_SYMBOL_GPL(st_nci_enable_se);
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 @@ static int st_nci_hci_network_init(struct nci_dev *ndev)
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 @@ int st_nci_discover_se(struct nci_dev *ndev)
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 @@ int st_nci_discover_se(struct nci_dev *ndev)
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,
diff --git a/drivers/nfc/st-nci/st-nci.h b/drivers/nfc/st-nci/st-nci.h
index 5d3f4d9..c68d538 100644
--- a/drivers/nfc/st-nci/st-nci.h
+++ b/drivers/nfc/st-nci/st-nci.h
@@ -34,6 +34,11 @@
#define ST_NCI_ESE_MAX_LENGTH 33
#define ST_NCI_HCI_HOST_ID_ESE 0xc0
+#define ST_NCI_DEVICE_MGNT_GATE 0x01
+
+#define ST_NCI_VENDOR_OUI 0x0080E1 /* STMicroelectronics */
+#define ST_NCI_FACTORY_MODE 2
+
struct nci_mode_set_cmd {
u8 cmd_type;
u8 mode;
@@ -60,10 +65,69 @@ struct st_nci_se_info {
void *cb_context;
};
+/**
+ * enum nfc_vendor_cmds - supported nfc vendor commands
+ *
+ * @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 as 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.
+ */
+enum nfc_vendor_cmds {
+ FACTORY_MODE,
+ HCI_CLEAR_ALL_PIPES,
+ HCI_DM_PUT_DATA,
+ HCI_DM_UPDATE_AID,
+ HCI_DM_GET_INFO,
+ HCI_DM_GET_DATA,
+ HCI_DM_DIRECT_LOAD,
+ HCI_DM_RESET,
+ HCI_GET_PARAM,
+ HCI_DM_FIELD_GENERATOR,
+ HCI_LOOPBACK,
+ HCI_DM_FWUPD_START,
+ HCI_DM_FWUPD_END,
+ HCI_DM_VDC_MEASUREMENT_VALUE,
+ HCI_DM_VDC_VALUE_COMPARISON,
+ MANUFACTURER_SPECIFIC,
+};
+
+struct st_nci_vendor_info {
+ struct completion req_completion;
+ struct sk_buff *rx_skb;
+};
+
struct st_nci_info {
struct llt_ndlc *ndlc;
unsigned long flags;
struct st_nci_se_info se_info;
+ struct st_nci_vendor_info vendor_info;
};
void st_nci_remove(struct nci_dev *ndev);
@@ -85,4 +149,8 @@ void st_nci_hci_event_received(struct nci_dev *ndev, u8 pipe,
void st_nci_hci_cmd_received(struct nci_dev *ndev, u8 pipe, u8 cmd,
struct sk_buff *skb);
+void st_nci_hci_loopback_event_received(struct nci_dev *ndev, u8 event,
+ struct sk_buff *skb);
+int st_nci_vendor_cmds_init(struct nci_dev *ndev);
+
#endif /* __LOCAL_ST_NCI_H_ */
diff --git a/drivers/nfc/st-nci/vendor_cmds.c b/drivers/nfc/st-nci/vendor_cmds.c
new file mode 100644
index 0000000..b5debce
--- /dev/null
+++ b/drivers/nfc/st-nci/vendor_cmds.c
@@ -0,0 +1,516 @@
+/*
+ * Proprietary commands extension for STMicroelectronics NFC NCI Chip
+ *
+ * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <net/genetlink.h>
+#include <linux/module.h>
+#include <linux/nfc.h>
+#include <linux/delay.h>
+#include <net/nfc/nci_core.h>
+
+#include "st-nci.h"
+
+#define ST_NCI_HCI_DM_GETDATA 0x10
+#define ST_NCI_HCI_DM_PUTDATA 0x11
+#define ST_NCI_HCI_DM_LOAD 0x12
+#define ST_NCI_HCI_DM_GETINFO 0x13
+#define ST_NCI_HCI_DM_FWUPD_START 0x14
+#define ST_NCI_HCI_DM_FWUPD_STOP 0x15
+#define ST_NCI_HCI_DM_UPDATE_AID 0x20
+#define ST_NCI_HCI_DM_RESET 0x3e
+
+#define ST_NCI_HCI_DM_FIELD_GENERATOR 0x32
+#define ST_NCI_HCI_DM_VDC_MEASUREMENT_VALUE 0x33
+#define ST_NCI_HCI_DM_VDC_VALUE_COMPARISON 0x34
+
+#define ST_NCI_FACTORY_MODE_ON 1
+#define ST_NCI_FACTORY_MODE_OFF 0
+
+#define ST_NCI_EVT_POST_DATA 0x02
+
+struct get_param_data {
+ u8 gate;
+ u8 data;
+} __packed;
+
+static int st_nci_factory_mode(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+ struct st_nci_info *info = nci_get_drvdata(ndev);
+
+ if (data_len != 1)
+ return -EINVAL;
+
+ pr_debug("factory mode: %x\n", ((u8 *)data)[0]);
+
+ switch (((u8 *)data)[0]) {
+ case ST_NCI_FACTORY_MODE_ON:
+ test_and_set_bit(ST_NCI_FACTORY_MODE, &info->flags);
+ break;
+ case ST_NCI_FACTORY_MODE_OFF:
+ clear_bit(ST_NCI_FACTORY_MODE, &info->flags);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int st_nci_hci_clear_all_pipes(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ return nci_hci_clear_all_pipes(ndev);
+}
+
+static int st_nci_hci_dm_put_data(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ return nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
+ ST_NCI_HCI_DM_PUTDATA, data,
+ data_len, NULL);
+}
+
+static int st_nci_hci_dm_update_aid(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ return nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
+ ST_NCI_HCI_DM_UPDATE_AID, data, data_len, NULL);
+}
+
+static int st_nci_hci_dm_get_info(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ int r;
+ struct sk_buff *msg, *skb;
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE, ST_NCI_HCI_DM_GETINFO,
+ data, data_len, &skb);
+ if (r)
+ goto exit;
+
+ msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
+ HCI_DM_GET_INFO, skb->len);
+ if (!msg) {
+ r = -ENOMEM;
+ goto free_skb;
+ }
+
+ if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
+ kfree_skb(msg);
+ r = -ENOBUFS;
+ goto free_skb;
+ }
+
+ r = nfc_vendor_cmd_reply(msg);
+
+free_skb:
+ kfree_skb(skb);
+exit:
+ return r;
+}
+
+static int st_nci_hci_dm_get_data(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ int r;
+ struct sk_buff *msg, *skb;
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE, ST_NCI_HCI_DM_GETDATA,
+ data, data_len, &skb);
+ if (r)
+ goto exit;
+
+ msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
+ HCI_DM_GET_DATA, skb->len);
+ if (!msg) {
+ r = -ENOMEM;
+ goto free_skb;
+ }
+
+ if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
+ kfree_skb(msg);
+ r = -ENOBUFS;
+ goto free_skb;
+ }
+
+ r = nfc_vendor_cmd_reply(msg);
+
+free_skb:
+ kfree_skb(skb);
+exit:
+ return r;
+}
+
+static int st_nci_hci_dm_fwupd_start(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ int r;
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ dev->fw_download_in_progress = true;
+ r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
+ ST_NCI_HCI_DM_FWUPD_START, data, data_len, NULL);
+ if (r)
+ dev->fw_download_in_progress = false;
+
+ return r;
+}
+
+static int st_nci_hci_dm_fwupd_end(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ return nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
+ ST_NCI_HCI_DM_FWUPD_STOP, data, data_len, NULL);
+}
+
+static int st_nci_hci_dm_direct_load(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ if (dev->fw_download_in_progress) {
+ dev->fw_download_in_progress = false;
+ return nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
+ ST_NCI_HCI_DM_LOAD, data, data_len, NULL);
+ }
+ return -EPROTO;
+}
+
+static int st_nci_hci_dm_reset(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
+ ST_NCI_HCI_DM_RESET, data, data_len, NULL);
+ msleep(200);
+
+ return 0;
+}
+
+static int st_nci_hci_get_param(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ int r;
+ struct sk_buff *msg, *skb;
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+ struct get_param_data *param = (struct get_param_data *)data;
+
+ if (data_len < sizeof(struct get_param_data))
+ return -EPROTO;
+
+ r = nci_hci_get_param(ndev, param->gate, param->data, &skb);
+ if (r)
+ goto exit;
+
+ msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
+ HCI_GET_PARAM, skb->len);
+ if (!msg) {
+ r = -ENOMEM;
+ goto free_skb;
+ }
+
+ if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
+ kfree_skb(msg);
+ r = -ENOBUFS;
+ goto free_skb;
+ }
+
+ r = nfc_vendor_cmd_reply(msg);
+
+free_skb:
+ kfree_skb(skb);
+exit:
+ return r;
+}
+
+static int st_nci_hci_dm_field_generator(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ return nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
+ ST_NCI_HCI_DM_FIELD_GENERATOR, data, data_len, NULL);
+}
+
+static int st_nci_hci_dm_vdc_measurement_value(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ int r;
+ struct sk_buff *msg, *skb;
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ if (data_len != 4)
+ return -EPROTO;
+
+ r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
+ ST_NCI_HCI_DM_VDC_MEASUREMENT_VALUE,
+ data, data_len, &skb);
+ if (r)
+ goto exit;
+
+ msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
+ HCI_DM_VDC_MEASUREMENT_VALUE, skb->len);
+ if (!msg) {
+ r = -ENOMEM;
+ goto free_skb;
+ }
+
+ if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
+ kfree_skb(msg);
+ r = -ENOBUFS;
+ goto free_skb;
+ }
+
+ r = nfc_vendor_cmd_reply(msg);
+
+free_skb:
+ kfree_skb(skb);
+exit:
+ return r;
+}
+
+static int st_nci_hci_dm_vdc_value_comparison(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ int r;
+ struct sk_buff *msg, *skb;
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ if (data_len != 2)
+ return -EPROTO;
+
+ r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
+ ST_NCI_HCI_DM_VDC_VALUE_COMPARISON,
+ data, data_len, &skb);
+ if (r)
+ goto exit;
+
+ msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
+ HCI_DM_VDC_VALUE_COMPARISON, skb->len);
+ if (!msg) {
+ r = -ENOMEM;
+ goto free_skb;
+ }
+
+ if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
+ kfree_skb(msg);
+ r = -ENOBUFS;
+ goto free_skb;
+ }
+
+ r = nfc_vendor_cmd_reply(msg);
+
+free_skb:
+ kfree_skb(skb);
+exit:
+ return r;
+}
+
+void st_nci_hci_loopback_event_received(struct nci_dev *ndev, u8 event,
+ struct sk_buff *skb)
+{
+ struct st_nci_info *info = nci_get_drvdata(ndev);
+
+ switch (event) {
+ case ST_NCI_EVT_POST_DATA:
+ info->vendor_info.rx_skb = skb;
+ break;
+ default:
+ nfc_err(&ndev->nfc_dev->dev, "Unexpected event on loopback gate\n");
+ }
+ complete(&info->vendor_info.req_completion);
+}
+EXPORT_SYMBOL(st_nci_hci_loopback_event_received);
+
+static int st_nci_hci_loopback(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ int r;
+ struct sk_buff *msg;
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+ struct st_nci_info *info = nci_get_drvdata(ndev);
+
+ if (data_len <= 0)
+ return -EPROTO;
+
+ reinit_completion(&info->vendor_info.req_completion);
+ info->vendor_info.rx_skb = NULL;
+
+ r = nci_hci_send_event(ndev, NCI_HCI_LOOPBACK_GATE,
+ ST_NCI_EVT_POST_DATA, data, data_len);
+ if (r != data_len) {
+ r = -EPROTO;
+ goto exit;
+ }
+
+ wait_for_completion_interruptible(&info->vendor_info.req_completion);
+
+ if (!info->vendor_info.rx_skb ||
+ info->vendor_info.rx_skb->len != data_len) {
+ r = -EPROTO;
+ goto exit;
+ }
+
+ msg = nfc_vendor_cmd_alloc_reply_skb(ndev->nfc_dev,
+ ST_NCI_VENDOR_OUI,
+ HCI_LOOPBACK,
+ info->vendor_info.rx_skb->len);
+ if (!msg) {
+ r = -ENOMEM;
+ goto free_skb;
+ }
+
+ if (nla_put(msg, NFC_ATTR_VENDOR_DATA, info->vendor_info.rx_skb->len,
+ info->vendor_info.rx_skb->data)) {
+ kfree_skb(msg);
+ r = -ENOBUFS;
+ goto free_skb;
+ }
+
+ r = nfc_vendor_cmd_reply(msg);
+free_skb:
+ kfree_skb(info->vendor_info.rx_skb);
+exit:
+ return r;
+}
+
+static int st_nci_manufacturer_specific(struct nfc_dev *dev, void *data,
+ size_t data_len)
+{
+ struct sk_buff *msg;
+ struct nci_dev *ndev = nfc_get_drvdata(dev);
+
+ msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST_NCI_VENDOR_OUI,
+ MANUFACTURER_SPECIFIC,
+ sizeof(ndev->manufact_specific_info));
+ if (!msg)
+ return -ENOMEM;
+
+ if (nla_put(msg, NFC_ATTR_VENDOR_DATA, sizeof(ndev->manufact_specific_info),
+ &ndev->manufact_specific_info)) {
+ kfree_skb(msg);
+ return -ENOBUFS;
+ }
+
+ return nfc_vendor_cmd_reply(msg);
+}
+
+static struct nfc_vendor_cmd st_nci_vendor_cmds[] = {
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = FACTORY_MODE,
+ .doit = st_nci_factory_mode,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_CLEAR_ALL_PIPES,
+ .doit = st_nci_hci_clear_all_pipes,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_DM_PUT_DATA,
+ .doit = st_nci_hci_dm_put_data,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_DM_UPDATE_AID,
+ .doit = st_nci_hci_dm_update_aid,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_DM_GET_INFO,
+ .doit = st_nci_hci_dm_get_info,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_DM_GET_DATA,
+ .doit = st_nci_hci_dm_get_data,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_DM_DIRECT_LOAD,
+ .doit = st_nci_hci_dm_direct_load,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_DM_RESET,
+ .doit = st_nci_hci_dm_reset,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_GET_PARAM,
+ .doit = st_nci_hci_get_param,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_DM_FIELD_GENERATOR,
+ .doit = st_nci_hci_dm_field_generator,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_DM_FWUPD_START,
+ .doit = st_nci_hci_dm_fwupd_start,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_DM_FWUPD_END,
+ .doit = st_nci_hci_dm_fwupd_end,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_LOOPBACK,
+ .doit = st_nci_hci_loopback,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_DM_VDC_MEASUREMENT_VALUE,
+ .doit = st_nci_hci_dm_vdc_measurement_value,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = HCI_DM_VDC_VALUE_COMPARISON,
+ .doit = st_nci_hci_dm_vdc_value_comparison,
+ },
+ {
+ .vendor_id = ST_NCI_VENDOR_OUI,
+ .subcmd = MANUFACTURER_SPECIFIC,
+ .doit = st_nci_manufacturer_specific,
+ },
+};
+
+int st_nci_vendor_cmds_init(struct nci_dev *ndev)
+{
+ struct st_nci_info *info = nci_get_drvdata(ndev);
+
+ init_completion(&info->vendor_info.req_completion);
+ return nfc_set_vendor_cmds(ndev->nfc_dev, st_nci_vendor_cmds,
+ sizeof(st_nci_vendor_cmds));
+}
+EXPORT_SYMBOL(st_nci_vendor_cmds_init);
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 377f3de..591338f 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -125,6 +125,7 @@ struct nci_conn_info {
/* Gates */
#define NCI_HCI_ADMIN_GATE 0x00
+#define NCI_HCI_LOOPBACK_GATE 0x04
#define NCI_HCI_IDENTITY_MGMT_GATE 0x05
#define NCI_HCI_LINK_MGMT_GATE 0x06
--
2.1.4
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
