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NFC: st-nci: Add support for proprietary commands

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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>
This commit is contained in:
Christophe Ricard
2015-10-25 22:54:36 +01:00
committed by Samuel Ortiz
parent ba723199d1
commit b1fa4dc4ff
6 changed files with 619 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/nfc/st-nci/Makefile
View File

@@ -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

13
drivers/nfc/st-nci/core.c
View File

@@ -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);

29
drivers/nfc/st-nci/se.c
View File

@@ -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,

68
drivers/nfc/st-nci/st-nci.h
View File

@@ -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_ */

516
drivers/nfc/st-nci/vendor_cmds.c Normal file
View File

File diff suppressed because it is too large Load Diff

1
include/net/nfc/nci_core.h
View File

@@ -128,6 +128,7 @@ 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