NFC: st21nfca: 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 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_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. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>steinar/wifi_calib_4_9_kernel
Christophe Ricard
Samuel Ortiz
parent
2b6e5bfed0
commit
15d17170b4
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@ -2,7 +2,7 @@
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# Makefile for ST21NFCA HCI based NFC driver
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#
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st21nfca_hci-objs = core.o dep.o se.o
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st21nfca_hci-objs = core.o dep.o se.o vendor_cmds.o
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obj-$(CONFIG_NFC_ST21NFCA) += st21nfca_hci.o
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st21nfca_i2c-objs = i2c.o
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@ -923,6 +923,8 @@ static int st21nfca_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe,
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event, skb);
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case ST21NFCA_APDU_READER_GATE:
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return st21nfca_apdu_reader_event_received(hdev, event, skb);
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case NFC_HCI_LOOPBACK_GATE:
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return st21nfca_hci_loopback_event_received(hdev, event, skb);
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default:
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return 1;
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}
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@ -1024,6 +1026,7 @@ int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops,
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*hdev = info->hdev;
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st21nfca_dep_init(info->hdev);
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st21nfca_se_init(info->hdev);
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st21nfca_vendor_cmds_init(info->hdev);
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return 0;
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@ -167,6 +167,9 @@ int st21nfca_hci_discover_se(struct nfc_hci_dev *hdev)
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struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
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int se_count = 0;
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if (test_bit(ST21NFCA_FACTORY_MODE, &hdev->quirks))
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return 0;
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if (info->se_status->is_uicc_present) {
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nfc_add_se(hdev->ndev, NFC_HCI_UICC_HOST_ID, NFC_SE_UICC);
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se_count++;
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@ -191,7 +194,6 @@ int st21nfca_hci_enable_se(struct nfc_hci_dev *hdev, u32 se_idx)
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* Same for eSE.
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*/
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r = st21nfca_hci_control_se(hdev, se_idx, ST21NFCA_SE_MODE_ON);
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if (r == ST21NFCA_ESE_HOST_ID) {
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st21nfca_se_get_atr(hdev);
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r = nfc_hci_send_event(hdev, ST21NFCA_APDU_READER_GATE,
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@ -66,6 +66,9 @@
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#define ST21NFCA_HCI_MODE 0
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#define ST21NFCA_NUM_DEVICES 256
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#define ST21NFCA_VENDOR_OUI 0x0080E1 /* STMicroelectronics */
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#define ST21NFCA_FACTORY_MODE 2
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struct st21nfca_se_status {
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bool is_ese_present;
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bool is_uicc_present;
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@ -76,6 +79,50 @@ enum st21nfca_state {
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ST21NFCA_ST_READY,
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};
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/**
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* enum nfc_vendor_cmds - supported nfc vendor commands
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*
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* @FACTORY_MODE: Allow to set the driver into a mode where no secure element
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* are activated. It does not consider any NFC_ATTR_VENDOR_DATA.
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* @HCI_CLEAR_ALL_PIPES: Allow to execute a HCI clear all pipes command.
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* It does not consider any NFC_ATTR_VENDOR_DATA.
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* @HCI_DM_PUT_DATA: Allow to configure specific CLF registry as for example
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* RF trimmings or low level drivers configurations (I2C, SPI, SWP).
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* @HCI_DM_UPDATE_AID: Allow to configure an AID routing into the CLF routing
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* table following RF technology, CLF mode or protocol.
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* @HCI_DM_GET_INFO: Allow to retrieve CLF information.
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* @HCI_DM_GET_DATA: Allow to retrieve CLF configurable data such as low
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* level drivers configurations or RF trimmings.
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* @HCI_DM_LOAD: Allow to load a firmware into the CLF. A complete
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* packet can be more than 8KB.
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* @HCI_DM_RESET: Allow to run a CLF reset in order to "commit" CLF
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* configuration changes without CLF power off.
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* @HCI_GET_PARAM: Allow to retrieve an HCI CLF parameter (for example the
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* white list).
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* @HCI_DM_FIELD_GENERATOR: Allow to generate different kind of RF
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* technology. When using this command to anti-collision is done.
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* @HCI_LOOPBACK: Allow to echo a command and test the Dh to CLF
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* connectivity.
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*/
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enum nfc_vendor_cmds {
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FACTORY_MODE,
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HCI_CLEAR_ALL_PIPES,
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HCI_DM_PUT_DATA,
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HCI_DM_UPDATE_AID,
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HCI_DM_GET_INFO,
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HCI_DM_GET_DATA,
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HCI_DM_LOAD,
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HCI_DM_RESET,
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HCI_GET_PARAM,
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HCI_DM_FIELD_GENERATOR,
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HCI_LOOPBACK,
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};
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struct st21nfca_vendor_info {
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struct completion req_completion;
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struct sk_buff *rx_skb;
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};
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struct st21nfca_dep_info {
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struct sk_buff *tx_pending;
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struct work_struct tx_work;
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@ -124,12 +171,13 @@ struct st21nfca_hci_info {
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struct st21nfca_dep_info dep_info;
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struct st21nfca_se_info se_info;
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struct st21nfca_vendor_info vendor_info;
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};
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int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops,
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char *llc_name, int phy_headroom, int phy_tailroom,
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int phy_payload, struct nfc_hci_dev **hdev,
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struct st21nfca_se_status *se_status);
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struct st21nfca_se_status *se_status);
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void st21nfca_hci_remove(struct nfc_hci_dev *hdev);
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int st21nfca_dep_event_received(struct nfc_hci_dev *hdev,
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@ -156,4 +204,8 @@ int st21nfca_hci_se_io(struct nfc_hci_dev *hdev, u32 se_idx,
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void st21nfca_se_init(struct nfc_hci_dev *hdev);
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void st21nfca_se_deinit(struct nfc_hci_dev *hdev);
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int st21nfca_hci_loopback_event_received(struct nfc_hci_dev *ndev, u8 event,
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struct sk_buff *skb);
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int st21nfca_vendor_cmds_init(struct nfc_hci_dev *ndev);
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#endif /* __LOCAL_ST21NFCA_H_ */
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@ -0,0 +1,375 @@
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/*
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* Proprietary commands extension for STMicroelectronics NFC Chip
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*
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* Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <net/genetlink.h>
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#include <linux/module.h>
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#include <linux/nfc.h>
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#include <net/nfc/hci.h>
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#include <net/nfc/llc.h>
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#include "st21nfca.h"
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#define ST21NFCA_HCI_DM_GETDATA 0x10
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#define ST21NFCA_HCI_DM_PUTDATA 0x11
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#define ST21NFCA_HCI_DM_LOAD 0x12
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#define ST21NFCA_HCI_DM_GETINFO 0x13
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#define ST21NFCA_HCI_DM_UPDATE_AID 0x20
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#define ST21NFCA_HCI_DM_RESET 0x3e
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#define ST21NFCA_HCI_DM_FIELD_GENERATOR 0x32
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#define ST21NFCA_FACTORY_MODE_ON 1
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#define ST21NFCA_FACTORY_MODE_OFF 0
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#define ST21NFCA_EVT_POST_DATA 0x02
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struct get_param_data {
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u8 gate;
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u8 data;
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} __packed;
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static int st21nfca_factory_mode(struct nfc_dev *dev, void *data,
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size_t data_len)
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{
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struct nfc_hci_dev *hdev = nfc_get_drvdata(dev);
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if (data_len != 1)
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return -EINVAL;
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pr_debug("factory mode: %x\n", ((u8 *)data)[0]);
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switch (((u8 *)data)[0]) {
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case ST21NFCA_FACTORY_MODE_ON:
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test_and_set_bit(ST21NFCA_FACTORY_MODE, &hdev->quirks);
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break;
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case ST21NFCA_FACTORY_MODE_OFF:
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clear_bit(ST21NFCA_FACTORY_MODE, &hdev->quirks);
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int st21nfca_hci_clear_all_pipes(struct nfc_dev *dev, void *data,
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size_t data_len)
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{
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struct nfc_hci_dev *hdev = nfc_get_drvdata(dev);
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return nfc_hci_disconnect_all_gates(hdev);
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}
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static int st21nfca_hci_dm_put_data(struct nfc_dev *dev, void *data,
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size_t data_len)
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{
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struct nfc_hci_dev *hdev = nfc_get_drvdata(dev);
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return nfc_hci_send_cmd(hdev, ST21NFCA_DEVICE_MGNT_GATE,
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ST21NFCA_HCI_DM_PUTDATA, data,
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data_len, NULL);
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}
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static int st21nfca_hci_dm_update_aid(struct nfc_dev *dev, void *data,
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size_t data_len)
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{
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struct nfc_hci_dev *hdev = nfc_get_drvdata(dev);
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return nfc_hci_send_cmd(hdev, ST21NFCA_DEVICE_MGNT_GATE,
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ST21NFCA_HCI_DM_UPDATE_AID, data, data_len, NULL);
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}
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static int st21nfca_hci_dm_get_info(struct nfc_dev *dev, void *data,
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size_t data_len)
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{
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int r;
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struct sk_buff *msg, *skb;
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struct nfc_hci_dev *hdev = nfc_get_drvdata(dev);
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r = nfc_hci_send_cmd(hdev,
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ST21NFCA_DEVICE_MGNT_GATE,
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ST21NFCA_HCI_DM_GETINFO,
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data, data_len, &skb);
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if (r)
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goto exit;
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msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST21NFCA_VENDOR_OUI,
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HCI_DM_GET_INFO, skb->len);
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if (!msg) {
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r = -ENOMEM;
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goto free_skb;
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}
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if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
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kfree_skb(msg);
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r = -ENOBUFS;
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goto free_skb;
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}
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r = nfc_vendor_cmd_reply(msg);
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free_skb:
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kfree_skb(skb);
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exit:
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return r;
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}
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static int st21nfca_hci_dm_get_data(struct nfc_dev *dev, void *data,
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size_t data_len)
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{
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int r;
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struct sk_buff *msg, *skb;
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struct nfc_hci_dev *hdev = nfc_get_drvdata(dev);
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r = nfc_hci_send_cmd(hdev,
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ST21NFCA_DEVICE_MGNT_GATE,
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ST21NFCA_HCI_DM_GETDATA,
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data, data_len, &skb);
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if (r)
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goto exit;
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msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST21NFCA_VENDOR_OUI,
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HCI_DM_GET_DATA, skb->len);
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if (!msg) {
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r = -ENOMEM;
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goto free_skb;
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}
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if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
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kfree_skb(msg);
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r = -ENOBUFS;
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goto free_skb;
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}
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r = nfc_vendor_cmd_reply(msg);
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free_skb:
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kfree_skb(skb);
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exit:
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return r;
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}
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static int st21nfca_hci_dm_load(struct nfc_dev *dev, void *data,
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size_t data_len)
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{
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struct nfc_hci_dev *hdev = nfc_get_drvdata(dev);
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return nfc_hci_send_cmd(hdev, ST21NFCA_DEVICE_MGNT_GATE,
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ST21NFCA_HCI_DM_LOAD, data, data_len, NULL);
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}
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static int st21nfca_hci_dm_reset(struct nfc_dev *dev, void *data,
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size_t data_len)
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{
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int r;
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struct nfc_hci_dev *hdev = nfc_get_drvdata(dev);
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r = nfc_hci_send_cmd_async(hdev, ST21NFCA_DEVICE_MGNT_GATE,
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ST21NFCA_HCI_DM_RESET, data, data_len, NULL, NULL);
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if (r < 0)
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return r;
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r = nfc_llc_stop(hdev->llc);
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if (r < 0)
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return r;
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return nfc_llc_start(hdev->llc);
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}
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static int st21nfca_hci_get_param(struct nfc_dev *dev, void *data,
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size_t data_len)
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{
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int r;
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struct sk_buff *msg, *skb;
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struct nfc_hci_dev *hdev = nfc_get_drvdata(dev);
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struct get_param_data *param = (struct get_param_data *)data;
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if (data_len < sizeof(struct get_param_data))
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return -EPROTO;
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r = nfc_hci_get_param(hdev, param->gate, param->data, &skb);
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if (r)
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goto exit;
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msg = nfc_vendor_cmd_alloc_reply_skb(dev, ST21NFCA_VENDOR_OUI,
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HCI_GET_PARAM, skb->len);
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if (!msg) {
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r = -ENOMEM;
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goto free_skb;
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}
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if (nla_put(msg, NFC_ATTR_VENDOR_DATA, skb->len, skb->data)) {
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kfree_skb(msg);
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r = -ENOBUFS;
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goto free_skb;
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}
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r = nfc_vendor_cmd_reply(msg);
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free_skb:
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kfree_skb(skb);
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exit:
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return r;
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}
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static int st21nfca_hci_dm_field_generator(struct nfc_dev *dev, void *data,
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size_t data_len)
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{
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struct nfc_hci_dev *hdev = nfc_get_drvdata(dev);
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return nfc_hci_send_cmd(hdev,
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ST21NFCA_DEVICE_MGNT_GATE,
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ST21NFCA_HCI_DM_FIELD_GENERATOR,
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data, data_len, NULL);
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}
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int st21nfca_hci_loopback_event_received(struct nfc_hci_dev *hdev, u8 event,
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struct sk_buff *skb)
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{
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struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
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switch (event) {
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case ST21NFCA_EVT_POST_DATA:
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info->vendor_info.rx_skb = skb;
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break;
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default:
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nfc_err(&hdev->ndev->dev, "Unexpected event on loopback gate\n");
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}
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complete(&info->vendor_info.req_completion);
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return 0;
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}
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EXPORT_SYMBOL(st21nfca_hci_loopback_event_received);
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static int st21nfca_hci_loopback(struct nfc_dev *dev, void *data,
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size_t data_len)
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{
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int r;
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struct sk_buff *msg;
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struct nfc_hci_dev *hdev = nfc_get_drvdata(dev);
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struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
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if (data_len <= 0)
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return -EPROTO;
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reinit_completion(&info->vendor_info.req_completion);
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info->vendor_info.rx_skb = NULL;
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r = nfc_hci_send_event(hdev, NFC_HCI_LOOPBACK_GATE,
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ST21NFCA_EVT_POST_DATA, data, data_len);
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if (r < 0) {
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r = -EPROTO;
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goto exit;
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}
|
||||
|
||||
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(hdev->ndev,
|
||||
ST21NFCA_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 struct nfc_vendor_cmd st21nfca_vendor_cmds[] = {
|
||||
{
|
||||
.vendor_id = ST21NFCA_VENDOR_OUI,
|
||||
.subcmd = FACTORY_MODE,
|
||||
.doit = st21nfca_factory_mode,
|
||||
},
|
||||
{
|
||||
.vendor_id = ST21NFCA_VENDOR_OUI,
|
||||
.subcmd = HCI_CLEAR_ALL_PIPES,
|
||||
.doit = st21nfca_hci_clear_all_pipes,
|
||||
},
|
||||
{
|
||||
.vendor_id = ST21NFCA_VENDOR_OUI,
|
||||
.subcmd = HCI_DM_PUT_DATA,
|
||||
.doit = st21nfca_hci_dm_put_data,
|
||||
},
|
||||
{
|
||||
.vendor_id = ST21NFCA_VENDOR_OUI,
|
||||
.subcmd = HCI_DM_UPDATE_AID,
|
||||
.doit = st21nfca_hci_dm_update_aid,
|
||||
},
|
||||
{
|
||||
.vendor_id = ST21NFCA_VENDOR_OUI,
|
||||
.subcmd = HCI_DM_GET_INFO,
|
||||
.doit = st21nfca_hci_dm_get_info,
|
||||
},
|
||||
{
|
||||
.vendor_id = ST21NFCA_VENDOR_OUI,
|
||||
.subcmd = HCI_DM_GET_DATA,
|
||||
.doit = st21nfca_hci_dm_get_data,
|
||||
},
|
||||
{
|
||||
.vendor_id = ST21NFCA_VENDOR_OUI,
|
||||
.subcmd = HCI_DM_LOAD,
|
||||
.doit = st21nfca_hci_dm_load,
|
||||
},
|
||||
{
|
||||
.vendor_id = ST21NFCA_VENDOR_OUI,
|
||||
.subcmd = HCI_DM_RESET,
|
||||
.doit = st21nfca_hci_dm_reset,
|
||||
},
|
||||
{
|
||||
.vendor_id = ST21NFCA_VENDOR_OUI,
|
||||
.subcmd = HCI_GET_PARAM,
|
||||
.doit = st21nfca_hci_get_param,
|
||||
},
|
||||
{
|
||||
.vendor_id = ST21NFCA_VENDOR_OUI,
|
||||
.subcmd = HCI_DM_FIELD_GENERATOR,
|
||||
.doit = st21nfca_hci_dm_field_generator,
|
||||
},
|
||||
{
|
||||
.vendor_id = ST21NFCA_VENDOR_OUI,
|
||||
.subcmd = HCI_LOOPBACK,
|
||||
.doit = st21nfca_hci_loopback,
|
||||
},
|
||||
};
|
||||
|
||||
int st21nfca_vendor_cmds_init(struct nfc_hci_dev *hdev)
|
||||
{
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
|
||||
init_completion(&info->vendor_info.req_completion);
|
||||
return nfc_set_vendor_cmds(hdev->ndev, st21nfca_vendor_cmds,
|
||||
sizeof(st21nfca_vendor_cmds));
|
||||
}
|
||||
EXPORT_SYMBOL(st21nfca_vendor_cmds_init);
|
||||
|
|
@ -144,11 +144,13 @@ inline int nfc_llc_start(struct nfc_llc *llc)
|
|||
{
|
||||
return llc->ops->start(llc);
|
||||
}
|
||||
EXPORT_SYMBOL(nfc_llc_start);
|
||||
|
||||
inline int nfc_llc_stop(struct nfc_llc *llc)
|
||||
{
|
||||
return llc->ops->stop(llc);
|
||||
}
|
||||
EXPORT_SYMBOL(nfc_llc_stop);
|
||||
|
||||
inline void nfc_llc_rcv_from_drv(struct nfc_llc *llc, struct sk_buff *skb)
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in New Issue