mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 19:00:53 +07:00
NFC: st21nfca: Adding P2P support to st21nfca in Initiator & Target mode
Support for Initiator and Target mode with ISO18092 commands support: - ATR_REQ/ATR_RES - PSL_REQ/PSL_RES - DEP_REQ/DEP_RES Work based on net/nfc/digital_dep.c. st21nfca is using: - Gate reader F for P2P in initiator mode. - Gate card F for P2P in target mode. Felica tag and p2p are differentiated with NFCID2. When starting with 01FE it is acting in p2p mode. On complete_target_discovered on ST21NFCA_RF_READER_F_GATE supported_protocols is set to NFC_PROTO_NFC_DEP_MASK for P2P. Tested against: Nexus S, Galaxy S2, Galaxy S3, Galaxy S3 Mini, Nexus 4 & Nexus 5. 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
Samuel Ortiz
parent
d57d74eb76
commit
1892bf844e
@ -4,5 +4,5 @@
|
||||
|
||||
st21nfca_i2c-objs = i2c.o
|
||||
|
||||
obj-$(CONFIG_NFC_ST21NFCA) += st21nfca.o
|
||||
obj-$(CONFIG_NFC_ST21NFCA) += st21nfca.o st21nfca_dep.o
|
||||
obj-$(CONFIG_NFC_ST21NFCA_I2C) += st21nfca_i2c.o
|
||||
|
||||
@ -22,6 +22,7 @@
|
||||
#include <net/nfc/llc.h>
|
||||
|
||||
#include "st21nfca.h"
|
||||
#include "st21nfca_dep.h"
|
||||
|
||||
#define DRIVER_DESC "HCI NFC driver for ST21NFCA"
|
||||
|
||||
@ -73,6 +74,7 @@ static struct nfc_hci_gate st21nfca_gates[] = {
|
||||
{ST21NFCA_RF_READER_F_GATE, NFC_HCI_INVALID_PIPE},
|
||||
{ST21NFCA_RF_READER_14443_3_A_GATE, NFC_HCI_INVALID_PIPE},
|
||||
{ST21NFCA_RF_READER_ISO15693_GATE, NFC_HCI_INVALID_PIPE},
|
||||
{ST21NFCA_RF_CARD_F_GATE, NFC_HCI_INVALID_PIPE},
|
||||
};
|
||||
|
||||
struct st21nfca_pipe_info {
|
||||
@ -300,6 +302,9 @@ static int st21nfca_hci_start_poll(struct nfc_hci_dev *hdev,
|
||||
u32 im_protocols, u32 tm_protocols)
|
||||
{
|
||||
int r;
|
||||
u32 pol_req;
|
||||
u8 param[19];
|
||||
struct sk_buff *datarate_skb;
|
||||
|
||||
pr_info(DRIVER_DESC ": %s protocols 0x%x 0x%x\n",
|
||||
__func__, im_protocols, tm_protocols);
|
||||
@ -332,6 +337,31 @@ static int st21nfca_hci_start_poll(struct nfc_hci_dev *hdev,
|
||||
ST21NFCA_RF_READER_F_GATE);
|
||||
if (r < 0)
|
||||
return r;
|
||||
} else {
|
||||
hdev->gb = nfc_get_local_general_bytes(hdev->ndev,
|
||||
&hdev->gb_len);
|
||||
|
||||
if (hdev->gb == NULL || hdev->gb_len == 0) {
|
||||
im_protocols &= ~NFC_PROTO_NFC_DEP_MASK;
|
||||
tm_protocols &= ~NFC_PROTO_NFC_DEP_MASK;
|
||||
}
|
||||
|
||||
param[0] = ST21NFCA_RF_READER_F_DATARATE_106 |
|
||||
ST21NFCA_RF_READER_F_DATARATE_212 |
|
||||
ST21NFCA_RF_READER_F_DATARATE_424;
|
||||
r = nfc_hci_set_param(hdev, ST21NFCA_RF_READER_F_GATE,
|
||||
ST21NFCA_RF_READER_F_DATARATE,
|
||||
param, 1);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
pol_req =
|
||||
be32_to_cpu(ST21NFCA_RF_READER_F_POL_REQ_DEFAULT);
|
||||
r = nfc_hci_set_param(hdev, ST21NFCA_RF_READER_F_GATE,
|
||||
ST21NFCA_RF_READER_F_POL_REQ,
|
||||
(u8 *) &pol_req, 4);
|
||||
if (r < 0)
|
||||
return r;
|
||||
}
|
||||
|
||||
if ((ST21NFCA_RF_READER_14443_3_A_GATE & im_protocols) == 0) {
|
||||
@ -354,6 +384,95 @@ static int st21nfca_hci_start_poll(struct nfc_hci_dev *hdev,
|
||||
nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE,
|
||||
NFC_HCI_EVT_END_OPERATION, NULL, 0);
|
||||
}
|
||||
|
||||
if (tm_protocols & NFC_PROTO_NFC_DEP_MASK) {
|
||||
r = nfc_hci_get_param(hdev, ST21NFCA_RF_CARD_F_GATE,
|
||||
ST21NFCA_RF_CARD_F_DATARATE,
|
||||
&datarate_skb);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
/* Configure the maximum supported datarate to 424Kbps */
|
||||
if (datarate_skb->len > 0 &&
|
||||
datarate_skb->data[0] !=
|
||||
ST21NFCA_RF_CARD_F_DATARATE_212_424) {
|
||||
param[0] = ST21NFCA_RF_CARD_F_DATARATE_212_424;
|
||||
r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE,
|
||||
ST21NFCA_RF_CARD_F_DATARATE,
|
||||
param, 1);
|
||||
if (r < 0)
|
||||
return r;
|
||||
}
|
||||
|
||||
/*
|
||||
* Configure sens_res
|
||||
*
|
||||
* NFC Forum Digital Spec Table 7:
|
||||
* NFCID1 size: triple (10 bytes)
|
||||
*/
|
||||
param[0] = 0x00;
|
||||
param[1] = 0x08;
|
||||
r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE,
|
||||
ST21NFCA_RF_CARD_F_SENS_RES, param, 2);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
/*
|
||||
* Configure sel_res
|
||||
*
|
||||
* NFC Forum Digistal Spec Table 17:
|
||||
* b3 set to 0b (value b7-b6):
|
||||
* - 10b: Configured for NFC-DEP Protocol
|
||||
*/
|
||||
param[0] = 0x40;
|
||||
r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE,
|
||||
ST21NFCA_RF_CARD_F_SEL_RES, param, 1);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
/* Configure NFCID1 Random uid */
|
||||
r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE,
|
||||
ST21NFCA_RF_CARD_F_NFCID1, NULL, 0);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
/* Configure NFCID2_LIST */
|
||||
/* System Code */
|
||||
param[0] = 0x00;
|
||||
param[1] = 0x00;
|
||||
/* NFCID2 */
|
||||
param[2] = 0x01;
|
||||
param[3] = 0xfe;
|
||||
param[4] = 'S';
|
||||
param[5] = 'T';
|
||||
param[6] = 'M';
|
||||
param[7] = 'i';
|
||||
param[8] = 'c';
|
||||
param[9] = 'r';
|
||||
/* 8 byte Pad bytes used for polling respone frame */
|
||||
|
||||
/*
|
||||
* Configuration byte:
|
||||
* - bit 0: define the default NFCID2 entry used when the
|
||||
* system code is equal to 'FFFF'
|
||||
* - bit 1: use a random value for lowest 6 bytes of
|
||||
* NFCID2 value
|
||||
* - bit 2: ignore polling request frame if request code
|
||||
* is equal to '01'
|
||||
* - Other bits are RFU
|
||||
*/
|
||||
param[18] = 0x01;
|
||||
r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE,
|
||||
ST21NFCA_RF_CARD_F_NFCID2_LIST, param,
|
||||
19);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
param[0] = 0x02;
|
||||
r = nfc_hci_set_param(hdev, ST21NFCA_RF_CARD_F_GATE,
|
||||
ST21NFCA_RF_CARD_F_MODE, param, 1);
|
||||
}
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
@ -458,6 +577,26 @@ static int st21nfca_get_iso15693_inventory(struct nfc_hci_dev *hdev,
|
||||
return r;
|
||||
}
|
||||
|
||||
static int st21nfca_hci_dep_link_up(struct nfc_hci_dev *hdev,
|
||||
struct nfc_target *target, u8 comm_mode,
|
||||
u8 *gb, size_t gb_len)
|
||||
{
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
|
||||
info->dep_info.idx = target->idx;
|
||||
return st21nfca_im_send_atr_req(hdev, gb, gb_len);
|
||||
}
|
||||
|
||||
static int st21nfca_hci_dep_link_down(struct nfc_hci_dev *hdev)
|
||||
{
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
|
||||
info->state = ST21NFCA_ST_READY;
|
||||
|
||||
return nfc_hci_send_cmd(hdev, ST21NFCA_DEVICE_MGNT_GATE,
|
||||
ST21NFCA_DM_DISCONNECT, NULL, 0, NULL);
|
||||
}
|
||||
|
||||
static int st21nfca_hci_target_from_gate(struct nfc_hci_dev *hdev, u8 gate,
|
||||
struct nfc_target *target)
|
||||
{
|
||||
@ -512,6 +651,69 @@ static int st21nfca_hci_target_from_gate(struct nfc_hci_dev *hdev, u8 gate,
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int st21nfca_hci_complete_target_discovered(struct nfc_hci_dev *hdev,
|
||||
u8 gate,
|
||||
struct nfc_target *target)
|
||||
{
|
||||
int r;
|
||||
struct sk_buff *nfcid2_skb = NULL, *nfcid1_skb;
|
||||
|
||||
if (gate == ST21NFCA_RF_READER_F_GATE) {
|
||||
r = nfc_hci_get_param(hdev, ST21NFCA_RF_READER_F_GATE,
|
||||
ST21NFCA_RF_READER_F_NFCID2, &nfcid2_skb);
|
||||
if (r < 0)
|
||||
goto exit;
|
||||
|
||||
if (nfcid2_skb->len > NFC_SENSF_RES_MAXSIZE) {
|
||||
r = -EPROTO;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
/*
|
||||
* - After the recepton of polling response for type F frame
|
||||
* at 212 or 424 Kbit/s, NFCID2 registry parameters will be
|
||||
* updated.
|
||||
* - After the reception of SEL_RES with NFCIP-1 compliant bit
|
||||
* set for type A frame NFCID1 will be updated
|
||||
*/
|
||||
if (nfcid2_skb->len > 0) {
|
||||
/* P2P in type F */
|
||||
memcpy(target->sensf_res, nfcid2_skb->data,
|
||||
nfcid2_skb->len);
|
||||
target->sensf_res_len = nfcid2_skb->len;
|
||||
/* NFC Forum Digital Protocol Table 44 */
|
||||
if (target->sensf_res[0] == 0x01 &&
|
||||
target->sensf_res[1] == 0xfe)
|
||||
target->supported_protocols =
|
||||
NFC_PROTO_NFC_DEP_MASK;
|
||||
else
|
||||
target->supported_protocols =
|
||||
NFC_PROTO_FELICA_MASK;
|
||||
} else {
|
||||
/* P2P in type A */
|
||||
r = nfc_hci_get_param(hdev, ST21NFCA_RF_READER_F_GATE,
|
||||
ST21NFCA_RF_READER_F_NFCID1,
|
||||
&nfcid1_skb);
|
||||
if (r < 0)
|
||||
goto exit;
|
||||
|
||||
if (nfcid1_skb->len > NFC_NFCID1_MAXSIZE) {
|
||||
r = -EPROTO;
|
||||
goto exit;
|
||||
}
|
||||
memcpy(target->sensf_res, nfcid1_skb->data,
|
||||
nfcid1_skb->len);
|
||||
target->sensf_res_len = nfcid1_skb->len;
|
||||
target->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
|
||||
}
|
||||
target->hci_reader_gate = ST21NFCA_RF_READER_F_GATE;
|
||||
}
|
||||
r = 1;
|
||||
exit:
|
||||
kfree_skb(nfcid2_skb);
|
||||
return r;
|
||||
}
|
||||
|
||||
#define ST21NFCA_CB_TYPE_READER_ISO15693 1
|
||||
static void st21nfca_hci_data_exchange_cb(void *context, struct sk_buff *skb,
|
||||
int err)
|
||||
@ -548,6 +750,9 @@ static int st21nfca_hci_im_transceive(struct nfc_hci_dev *hdev,
|
||||
|
||||
switch (target->hci_reader_gate) {
|
||||
case ST21NFCA_RF_READER_F_GATE:
|
||||
if (target->supported_protocols == NFC_PROTO_NFC_DEP_MASK)
|
||||
return st21nfca_im_send_dep_req(hdev, skb);
|
||||
|
||||
*skb_push(skb, 1) = 0x1a;
|
||||
return nfc_hci_send_cmd_async(hdev, target->hci_reader_gate,
|
||||
ST21NFCA_WR_XCHG_DATA, skb->data,
|
||||
@ -576,6 +781,11 @@ static int st21nfca_hci_im_transceive(struct nfc_hci_dev *hdev,
|
||||
}
|
||||
}
|
||||
|
||||
static int st21nfca_hci_tm_send(struct nfc_hci_dev *hdev, struct sk_buff *skb)
|
||||
{
|
||||
return st21nfca_tm_send_dep_res(hdev, skb);
|
||||
}
|
||||
|
||||
static int st21nfca_hci_check_presence(struct nfc_hci_dev *hdev,
|
||||
struct nfc_target *target)
|
||||
{
|
||||
@ -601,6 +811,50 @@ static int st21nfca_hci_check_presence(struct nfc_hci_dev *hdev,
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Returns:
|
||||
* <= 0: driver handled the event, skb consumed
|
||||
* 1: driver does not handle the event, please do standard processing
|
||||
*/
|
||||
static int st21nfca_hci_event_received(struct nfc_hci_dev *hdev, u8 gate,
|
||||
u8 event, struct sk_buff *skb)
|
||||
{
|
||||
int r;
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
|
||||
pr_debug("hci event: %d\n", event);
|
||||
|
||||
switch (event) {
|
||||
case ST21NFCA_EVT_CARD_ACTIVATED:
|
||||
if (gate == ST21NFCA_RF_CARD_F_GATE)
|
||||
info->dep_info.curr_nfc_dep_pni = 0;
|
||||
break;
|
||||
case ST21NFCA_EVT_CARD_DEACTIVATED:
|
||||
break;
|
||||
case ST21NFCA_EVT_FIELD_ON:
|
||||
break;
|
||||
case ST21NFCA_EVT_FIELD_OFF:
|
||||
break;
|
||||
case ST21NFCA_EVT_SEND_DATA:
|
||||
if (gate == ST21NFCA_RF_CARD_F_GATE) {
|
||||
r = st21nfca_tm_event_send_data(hdev, skb, gate);
|
||||
if (r < 0)
|
||||
goto exit;
|
||||
return 0;
|
||||
} else {
|
||||
info->dep_info.curr_nfc_dep_pni = 0;
|
||||
return 1;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
return 1;
|
||||
}
|
||||
kfree_skb(skb);
|
||||
return 0;
|
||||
exit:
|
||||
return r;
|
||||
}
|
||||
|
||||
static struct nfc_hci_ops st21nfca_hci_ops = {
|
||||
.open = st21nfca_hci_open,
|
||||
.close = st21nfca_hci_close,
|
||||
@ -609,9 +863,14 @@ static struct nfc_hci_ops st21nfca_hci_ops = {
|
||||
.xmit = st21nfca_hci_xmit,
|
||||
.start_poll = st21nfca_hci_start_poll,
|
||||
.stop_poll = st21nfca_hci_stop_poll,
|
||||
.dep_link_up = st21nfca_hci_dep_link_up,
|
||||
.dep_link_down = st21nfca_hci_dep_link_down,
|
||||
.target_from_gate = st21nfca_hci_target_from_gate,
|
||||
.complete_target_discovered = st21nfca_hci_complete_target_discovered,
|
||||
.im_transceive = st21nfca_hci_im_transceive,
|
||||
.tm_send = st21nfca_hci_tm_send,
|
||||
.check_presence = st21nfca_hci_check_presence,
|
||||
.event_received = st21nfca_hci_event_received,
|
||||
};
|
||||
|
||||
int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops,
|
||||
@ -656,7 +915,8 @@ int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops,
|
||||
NFC_PROTO_FELICA_MASK |
|
||||
NFC_PROTO_ISO14443_MASK |
|
||||
NFC_PROTO_ISO14443_B_MASK |
|
||||
NFC_PROTO_ISO15693_MASK;
|
||||
NFC_PROTO_ISO15693_MASK |
|
||||
NFC_PROTO_NFC_DEP_MASK;
|
||||
|
||||
set_bit(NFC_HCI_QUIRK_SHORT_CLEAR, &quirks);
|
||||
|
||||
@ -679,6 +939,7 @@ int st21nfca_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops,
|
||||
goto err_regdev;
|
||||
|
||||
*hdev = info->hdev;
|
||||
st21nfca_dep_init(info->hdev);
|
||||
|
||||
return 0;
|
||||
|
||||
@ -696,6 +957,7 @@ void st21nfca_hci_remove(struct nfc_hci_dev *hdev)
|
||||
{
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
|
||||
st21nfca_dep_deinit(hdev);
|
||||
nfc_hci_unregister_device(hdev);
|
||||
nfc_hci_free_device(hdev);
|
||||
kfree(info);
|
||||
|
||||
@ -19,6 +19,8 @@
|
||||
|
||||
#include <net/nfc/hci.h>
|
||||
|
||||
#include "st21nfca_dep.h"
|
||||
|
||||
#define HCI_MODE 0
|
||||
|
||||
/* framing in HCI mode */
|
||||
@ -73,7 +75,8 @@ struct st21nfca_hci_info {
|
||||
data_exchange_cb_t async_cb;
|
||||
void *async_cb_context;
|
||||
|
||||
} __packed;
|
||||
struct st21nfca_dep_info dep_info;
|
||||
};
|
||||
|
||||
/* Reader RF commands */
|
||||
#define ST21NFCA_WR_XCHG_DATA 0x10
|
||||
@ -83,5 +86,26 @@ struct st21nfca_hci_info {
|
||||
#define ST21NFCA_RF_READER_F_DATARATE_106 0x01
|
||||
#define ST21NFCA_RF_READER_F_DATARATE_212 0x02
|
||||
#define ST21NFCA_RF_READER_F_DATARATE_424 0x04
|
||||
#define ST21NFCA_RF_READER_F_POL_REQ 0x02
|
||||
#define ST21NFCA_RF_READER_F_POL_REQ_DEFAULT 0xffff0000
|
||||
#define ST21NFCA_RF_READER_F_NFCID2 0x03
|
||||
#define ST21NFCA_RF_READER_F_NFCID1 0x04
|
||||
#define ST21NFCA_RF_READER_F_SENS_RES 0x05
|
||||
|
||||
#define ST21NFCA_RF_CARD_F_GATE 0x24
|
||||
#define ST21NFCA_RF_CARD_F_MODE 0x01
|
||||
#define ST21NFCA_RF_CARD_F_NFCID2_LIST 0x04
|
||||
#define ST21NFCA_RF_CARD_F_NFCID1 0x05
|
||||
#define ST21NFCA_RF_CARD_F_SENS_RES 0x06
|
||||
#define ST21NFCA_RF_CARD_F_SEL_RES 0x07
|
||||
#define ST21NFCA_RF_CARD_F_DATARATE 0x08
|
||||
#define ST21NFCA_RF_CARD_F_DATARATE_106 0x00
|
||||
#define ST21NFCA_RF_CARD_F_DATARATE_212_424 0x01
|
||||
|
||||
#define ST21NFCA_EVT_SEND_DATA 0x10
|
||||
#define ST21NFCA_EVT_FIELD_ON 0x11
|
||||
#define ST21NFCA_EVT_CARD_DEACTIVATED 0x12
|
||||
#define ST21NFCA_EVT_CARD_ACTIVATED 0x13
|
||||
#define ST21NFCA_EVT_FIELD_OFF 0x14
|
||||
|
||||
#endif /* __LOCAL_ST21NFCA_H_ */
|
||||
|
||||
661
drivers/nfc/st21nfca/st21nfca_dep.c
Normal file
661
drivers/nfc/st21nfca/st21nfca_dep.c
Normal file
@ -0,0 +1,661 @@
|
||||
/*
|
||||
* Copyright (C) 2014 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/nfc/hci.h>
|
||||
|
||||
#include "st21nfca.h"
|
||||
#include "st21nfca_dep.h"
|
||||
|
||||
#define ST21NFCA_NFCIP1_INITIATOR 0x00
|
||||
#define ST21NFCA_NFCIP1_REQ 0xd4
|
||||
#define ST21NFCA_NFCIP1_RES 0xd5
|
||||
#define ST21NFCA_NFCIP1_ATR_REQ 0x00
|
||||
#define ST21NFCA_NFCIP1_ATR_RES 0x01
|
||||
#define ST21NFCA_NFCIP1_PSL_REQ 0x04
|
||||
#define ST21NFCA_NFCIP1_PSL_RES 0x05
|
||||
#define ST21NFCA_NFCIP1_DEP_REQ 0x06
|
||||
#define ST21NFCA_NFCIP1_DEP_RES 0x07
|
||||
|
||||
#define ST21NFCA_NFC_DEP_PFB_PNI(pfb) ((pfb) & 0x03)
|
||||
#define ST21NFCA_NFC_DEP_PFB_TYPE(pfb) ((pfb) & 0xE0)
|
||||
#define ST21NFCA_NFC_DEP_PFB_IS_TIMEOUT(pfb) \
|
||||
((pfb) & ST21NFCA_NFC_DEP_PFB_TIMEOUT_BIT)
|
||||
#define ST21NFCA_NFC_DEP_DID_BIT_SET(pfb) ((pfb) & 0x04)
|
||||
#define ST21NFCA_NFC_DEP_NAD_BIT_SET(pfb) ((pfb) & 0x08)
|
||||
#define ST21NFCA_NFC_DEP_PFB_TIMEOUT_BIT 0x10
|
||||
|
||||
#define ST21NFCA_NFC_DEP_PFB_IS_TIMEOUT(pfb) \
|
||||
((pfb) & ST21NFCA_NFC_DEP_PFB_TIMEOUT_BIT)
|
||||
|
||||
#define ST21NFCA_NFC_DEP_PFB_I_PDU 0x00
|
||||
#define ST21NFCA_NFC_DEP_PFB_ACK_NACK_PDU 0x40
|
||||
#define ST21NFCA_NFC_DEP_PFB_SUPERVISOR_PDU 0x80
|
||||
|
||||
#define ST21NFCA_ATR_REQ_MIN_SIZE 17
|
||||
#define ST21NFCA_ATR_REQ_MAX_SIZE 65
|
||||
#define ST21NFCA_LR_BITS_PAYLOAD_SIZE_254B 0x30
|
||||
#define ST21NFCA_GB_BIT 0x02
|
||||
|
||||
#define ST21NFCA_EVT_CARD_F_BITRATE 0x16
|
||||
#define ST21NFCA_EVT_READER_F_BITRATE 0x13
|
||||
#define ST21NFCA_PSL_REQ_SEND_SPEED(brs) (brs & 0x38)
|
||||
#define ST21NFCA_PSL_REQ_RECV_SPEED(brs) (brs & 0x07)
|
||||
#define ST21NFCA_PP2LRI(pp) ((pp & 0x30) >> 4)
|
||||
#define ST21NFCA_CARD_BITRATE_212 0x01
|
||||
#define ST21NFCA_CARD_BITRATE_424 0x02
|
||||
|
||||
#define ST21NFCA_DEFAULT_TIMEOUT 0x0a
|
||||
|
||||
|
||||
#define PROTOCOL_ERR(req) pr_err("%d: ST21NFCA Protocol error: %s\n", \
|
||||
__LINE__, req)
|
||||
|
||||
struct st21nfca_atr_req {
|
||||
u8 length;
|
||||
u8 cmd0;
|
||||
u8 cmd1;
|
||||
u8 nfcid3[NFC_NFCID3_MAXSIZE];
|
||||
u8 did;
|
||||
u8 bsi;
|
||||
u8 bri;
|
||||
u8 ppi;
|
||||
u8 gbi[0];
|
||||
} __packed;
|
||||
|
||||
struct st21nfca_atr_res {
|
||||
u8 length;
|
||||
u8 cmd0;
|
||||
u8 cmd1;
|
||||
u8 nfcid3[NFC_NFCID3_MAXSIZE];
|
||||
u8 did;
|
||||
u8 bsi;
|
||||
u8 bri;
|
||||
u8 to;
|
||||
u8 ppi;
|
||||
u8 gbi[0];
|
||||
} __packed;
|
||||
|
||||
struct st21nfca_psl_req {
|
||||
u8 length;
|
||||
u8 cmd0;
|
||||
u8 cmd1;
|
||||
u8 did;
|
||||
u8 brs;
|
||||
u8 fsl;
|
||||
} __packed;
|
||||
|
||||
struct st21nfca_psl_res {
|
||||
u8 length;
|
||||
u8 cmd0;
|
||||
u8 cmd1;
|
||||
u8 did;
|
||||
} __packed;
|
||||
|
||||
struct st21nfca_dep_req_res {
|
||||
u8 length;
|
||||
u8 cmd0;
|
||||
u8 cmd1;
|
||||
u8 pfb;
|
||||
u8 did;
|
||||
u8 nad;
|
||||
} __packed;
|
||||
|
||||
static void st21nfca_tx_work(struct work_struct *work)
|
||||
{
|
||||
struct st21nfca_hci_info *info = container_of(work,
|
||||
struct st21nfca_hci_info,
|
||||
dep_info.tx_work);
|
||||
|
||||
struct nfc_dev *dev;
|
||||
struct sk_buff *skb;
|
||||
if (info) {
|
||||
dev = info->hdev->ndev;
|
||||
skb = info->dep_info.tx_pending;
|
||||
|
||||
device_lock(&dev->dev);
|
||||
|
||||
nfc_hci_send_cmd_async(info->hdev, ST21NFCA_RF_READER_F_GATE,
|
||||
ST21NFCA_WR_XCHG_DATA,
|
||||
skb->data, skb->len,
|
||||
info->async_cb, info);
|
||||
device_unlock(&dev->dev);
|
||||
kfree_skb(skb);
|
||||
}
|
||||
}
|
||||
|
||||
static void st21nfca_im_send_pdu(struct st21nfca_hci_info *info,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
info->dep_info.tx_pending = skb;
|
||||
schedule_work(&info->dep_info.tx_work);
|
||||
}
|
||||
|
||||
static int st21nfca_tm_send_atr_res(struct nfc_hci_dev *hdev,
|
||||
struct st21nfca_atr_req *atr_req)
|
||||
{
|
||||
struct st21nfca_atr_res *atr_res;
|
||||
struct sk_buff *skb;
|
||||
size_t gb_len;
|
||||
int r;
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
|
||||
gb_len = atr_req->length - sizeof(struct st21nfca_atr_req);
|
||||
skb = alloc_skb(atr_req->length + 1, GFP_KERNEL);
|
||||
if (!skb)
|
||||
return -ENOMEM;
|
||||
|
||||
skb_put(skb, sizeof(struct st21nfca_atr_res));
|
||||
|
||||
atr_res = (struct st21nfca_atr_res *)skb->data;
|
||||
memset(atr_res, 0, sizeof(struct st21nfca_atr_res));
|
||||
|
||||
atr_res->length = atr_req->length + 1;
|
||||
atr_res->cmd0 = ST21NFCA_NFCIP1_RES;
|
||||
atr_res->cmd1 = ST21NFCA_NFCIP1_ATR_RES;
|
||||
|
||||
memcpy(atr_res->nfcid3, atr_req->nfcid3, 6);
|
||||
atr_res->bsi = 0x00;
|
||||
atr_res->bri = 0x00;
|
||||
atr_res->to = ST21NFCA_DEFAULT_TIMEOUT;
|
||||
atr_res->ppi = ST21NFCA_LR_BITS_PAYLOAD_SIZE_254B;
|
||||
|
||||
if (gb_len) {
|
||||
skb_put(skb, gb_len);
|
||||
|
||||
atr_res->ppi |= ST21NFCA_GB_BIT;
|
||||
memcpy(atr_res->gbi, atr_req->gbi, gb_len);
|
||||
r = nfc_set_remote_general_bytes(hdev->ndev, atr_res->gbi,
|
||||
gb_len);
|
||||
if (r < 0)
|
||||
return r;
|
||||
}
|
||||
|
||||
info->dep_info.curr_nfc_dep_pni = 0;
|
||||
|
||||
return nfc_hci_send_event(hdev, ST21NFCA_RF_CARD_F_GATE,
|
||||
ST21NFCA_EVT_SEND_DATA, skb->data, skb->len);
|
||||
}
|
||||
|
||||
static int st21nfca_tm_recv_atr_req(struct nfc_hci_dev *hdev,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
struct st21nfca_atr_req *atr_req;
|
||||
size_t gb_len;
|
||||
int r;
|
||||
|
||||
skb_trim(skb, skb->len - 1);
|
||||
if (IS_ERR(skb)) {
|
||||
r = PTR_ERR(skb);
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (!skb->len) {
|
||||
r = -EIO;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (skb->len < ST21NFCA_ATR_REQ_MIN_SIZE) {
|
||||
r = -EPROTO;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
atr_req = (struct st21nfca_atr_req *)skb->data;
|
||||
|
||||
r = st21nfca_tm_send_atr_res(hdev, atr_req);
|
||||
if (r)
|
||||
goto exit;
|
||||
|
||||
gb_len = skb->len - sizeof(struct st21nfca_atr_req);
|
||||
|
||||
r = nfc_tm_activated(hdev->ndev, NFC_PROTO_NFC_DEP_MASK,
|
||||
NFC_COMM_PASSIVE, atr_req->gbi, gb_len);
|
||||
if (r)
|
||||
goto exit;
|
||||
|
||||
r = 0;
|
||||
|
||||
exit:
|
||||
return r;
|
||||
}
|
||||
|
||||
static int st21nfca_tm_send_psl_res(struct nfc_hci_dev *hdev,
|
||||
struct st21nfca_psl_req *psl_req)
|
||||
{
|
||||
struct st21nfca_psl_res *psl_res;
|
||||
struct sk_buff *skb;
|
||||
u8 bitrate[2] = {0, 0};
|
||||
|
||||
int r;
|
||||
|
||||
skb = alloc_skb(sizeof(struct st21nfca_psl_res), GFP_KERNEL);
|
||||
if (!skb)
|
||||
return -ENOMEM;
|
||||
skb_put(skb, sizeof(struct st21nfca_psl_res));
|
||||
|
||||
psl_res = (struct st21nfca_psl_res *)skb->data;
|
||||
|
||||
psl_res->length = sizeof(struct st21nfca_psl_res);
|
||||
psl_res->cmd0 = ST21NFCA_NFCIP1_RES;
|
||||
psl_res->cmd1 = ST21NFCA_NFCIP1_PSL_RES;
|
||||
psl_res->did = psl_req->did;
|
||||
|
||||
r = nfc_hci_send_event(hdev, ST21NFCA_RF_CARD_F_GATE,
|
||||
ST21NFCA_EVT_SEND_DATA, skb->data, skb->len);
|
||||
|
||||
/*
|
||||
* ST21NFCA only support P2P passive.
|
||||
* PSL_REQ BRS value != 0 has only a meaning to
|
||||
* change technology to type F.
|
||||
* We change to BITRATE 424Kbits.
|
||||
* In other case switch to BITRATE 106Kbits.
|
||||
*/
|
||||
if (ST21NFCA_PSL_REQ_SEND_SPEED(psl_req->brs) &&
|
||||
ST21NFCA_PSL_REQ_RECV_SPEED(psl_req->brs)) {
|
||||
bitrate[0] = ST21NFCA_CARD_BITRATE_424;
|
||||
bitrate[1] = ST21NFCA_CARD_BITRATE_424;
|
||||
}
|
||||
|
||||
/* Send an event to change bitrate change event to card f */
|
||||
return nfc_hci_send_event(hdev, ST21NFCA_RF_CARD_F_GATE,
|
||||
ST21NFCA_EVT_CARD_F_BITRATE, bitrate, 2);
|
||||
}
|
||||
|
||||
static int st21nfca_tm_recv_psl_req(struct nfc_hci_dev *hdev,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
struct st21nfca_psl_req *psl_req;
|
||||
int r;
|
||||
|
||||
skb_trim(skb, skb->len - 1);
|
||||
if (IS_ERR(skb)) {
|
||||
r = PTR_ERR(skb);
|
||||
skb = NULL;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (!skb->len) {
|
||||
r = -EIO;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
psl_req = (struct st21nfca_psl_req *)skb->data;
|
||||
|
||||
if (skb->len < sizeof(struct st21nfca_psl_req)) {
|
||||
r = -EIO;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
r = st21nfca_tm_send_psl_res(hdev, psl_req);
|
||||
exit:
|
||||
return r;
|
||||
}
|
||||
|
||||
int st21nfca_tm_send_dep_res(struct nfc_hci_dev *hdev, struct sk_buff *skb)
|
||||
{
|
||||
int r;
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
|
||||
*skb_push(skb, 1) = info->dep_info.curr_nfc_dep_pni;
|
||||
*skb_push(skb, 1) = ST21NFCA_NFCIP1_DEP_RES;
|
||||
*skb_push(skb, 1) = ST21NFCA_NFCIP1_RES;
|
||||
*skb_push(skb, 1) = skb->len;
|
||||
|
||||
r = nfc_hci_send_event(hdev, ST21NFCA_RF_CARD_F_GATE,
|
||||
ST21NFCA_EVT_SEND_DATA, skb->data, skb->len);
|
||||
kfree_skb(skb);
|
||||
|
||||
return r;
|
||||
}
|
||||
EXPORT_SYMBOL(st21nfca_tm_send_dep_res);
|
||||
|
||||
static int st21nfca_tm_recv_dep_req(struct nfc_hci_dev *hdev,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
struct st21nfca_dep_req_res *dep_req;
|
||||
u8 size;
|
||||
int r;
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
|
||||
skb_trim(skb, skb->len - 1);
|
||||
if (IS_ERR(skb)) {
|
||||
r = PTR_ERR(skb);
|
||||
skb = NULL;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
size = 4;
|
||||
|
||||
dep_req = (struct st21nfca_dep_req_res *)skb->data;
|
||||
if (skb->len < size) {
|
||||
r = -EIO;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (ST21NFCA_NFC_DEP_DID_BIT_SET(dep_req->pfb))
|
||||
size++;
|
||||
if (ST21NFCA_NFC_DEP_NAD_BIT_SET(dep_req->pfb))
|
||||
size++;
|
||||
|
||||
if (skb->len < size) {
|
||||
r = -EIO;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
/* Receiving DEP_REQ - Decoding */
|
||||
switch (ST21NFCA_NFC_DEP_PFB_TYPE(dep_req->pfb)) {
|
||||
case ST21NFCA_NFC_DEP_PFB_I_PDU:
|
||||
info->dep_info.curr_nfc_dep_pni =
|
||||
ST21NFCA_NFC_DEP_PFB_PNI(dep_req->pfb);
|
||||
break;
|
||||
case ST21NFCA_NFC_DEP_PFB_ACK_NACK_PDU:
|
||||
pr_err("Received a ACK/NACK PDU\n");
|
||||
break;
|
||||
case ST21NFCA_NFC_DEP_PFB_SUPERVISOR_PDU:
|
||||
pr_err("Received a SUPERVISOR PDU\n");
|
||||
break;
|
||||
}
|
||||
|
||||
if (IS_ERR(skb)) {
|
||||
r = PTR_ERR(skb);
|
||||
skb = NULL;
|
||||
goto exit;
|
||||
}
|
||||
|
||||
skb_pull(skb, size);
|
||||
|
||||
return nfc_tm_data_received(hdev->ndev, skb);
|
||||
exit:
|
||||
return r;
|
||||
}
|
||||
|
||||
int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev, struct sk_buff *skb,
|
||||
u8 gate)
|
||||
{
|
||||
u8 cmd0, cmd1;
|
||||
int r;
|
||||
|
||||
cmd0 = skb->data[1];
|
||||
switch (cmd0) {
|
||||
case ST21NFCA_NFCIP1_REQ:
|
||||
cmd1 = skb->data[2];
|
||||
switch (cmd1) {
|
||||
case ST21NFCA_NFCIP1_ATR_REQ:
|
||||
r = st21nfca_tm_recv_atr_req(hdev, skb);
|
||||
break;
|
||||
case ST21NFCA_NFCIP1_PSL_REQ:
|
||||
r = st21nfca_tm_recv_psl_req(hdev, skb);
|
||||
break;
|
||||
case ST21NFCA_NFCIP1_DEP_REQ:
|
||||
r = st21nfca_tm_recv_dep_req(hdev, skb);
|
||||
break;
|
||||
default:
|
||||
return 1;
|
||||
}
|
||||
default:
|
||||
return 1;
|
||||
}
|
||||
return r;
|
||||
}
|
||||
EXPORT_SYMBOL(st21nfca_tm_event_send_data);
|
||||
|
||||
static void st21nfca_im_send_psl_req(struct nfc_hci_dev *hdev, u8 did, u8 bsi,
|
||||
u8 bri, u8 lri)
|
||||
{
|
||||
struct sk_buff *skb;
|
||||
struct st21nfca_psl_req *psl_req;
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
|
||||
skb =
|
||||
alloc_skb(sizeof(struct st21nfca_psl_req) + 1, GFP_KERNEL);
|
||||
if (!skb)
|
||||
return;
|
||||
skb_reserve(skb, 1);
|
||||
|
||||
skb_put(skb, sizeof(struct st21nfca_psl_req));
|
||||
psl_req = (struct st21nfca_psl_req *) skb->data;
|
||||
|
||||
psl_req->length = sizeof(struct st21nfca_psl_req);
|
||||
psl_req->cmd0 = ST21NFCA_NFCIP1_REQ;
|
||||
psl_req->cmd1 = ST21NFCA_NFCIP1_PSL_REQ;
|
||||
psl_req->did = did;
|
||||
psl_req->brs = (0x30 & bsi << 4) | (bri & 0x03);
|
||||
psl_req->fsl = lri;
|
||||
|
||||
*skb_push(skb, 1) = info->dep_info.to | 0x10;
|
||||
|
||||
st21nfca_im_send_pdu(info, skb);
|
||||
|
||||
kfree_skb(skb);
|
||||
}
|
||||
|
||||
#define ST21NFCA_CB_TYPE_READER_F 1
|
||||
static void st21nfca_im_recv_atr_res_cb(void *context, struct sk_buff *skb,
|
||||
int err)
|
||||
{
|
||||
struct st21nfca_hci_info *info = context;
|
||||
struct st21nfca_atr_res *atr_res;
|
||||
int r;
|
||||
|
||||
if (err != 0)
|
||||
return;
|
||||
|
||||
if (IS_ERR(skb))
|
||||
return;
|
||||
|
||||
switch (info->async_cb_type) {
|
||||
case ST21NFCA_CB_TYPE_READER_F:
|
||||
skb_trim(skb, skb->len - 1);
|
||||
atr_res = (struct st21nfca_atr_res *)skb->data;
|
||||
r = nfc_set_remote_general_bytes(info->hdev->ndev,
|
||||
atr_res->gbi,
|
||||
skb->len - sizeof(struct st21nfca_atr_res));
|
||||
if (r < 0)
|
||||
return;
|
||||
|
||||
if (atr_res->to >= 0x0e)
|
||||
info->dep_info.to = 0x0e;
|
||||
else
|
||||
info->dep_info.to = atr_res->to + 1;
|
||||
|
||||
info->dep_info.to |= 0x10;
|
||||
|
||||
r = nfc_dep_link_is_up(info->hdev->ndev, info->dep_info.idx,
|
||||
NFC_COMM_PASSIVE, NFC_RF_INITIATOR);
|
||||
if (r < 0)
|
||||
return;
|
||||
|
||||
info->dep_info.curr_nfc_dep_pni = 0;
|
||||
if (ST21NFCA_PP2LRI(atr_res->ppi) != info->dep_info.lri)
|
||||
st21nfca_im_send_psl_req(info->hdev, atr_res->did,
|
||||
atr_res->bsi, atr_res->bri,
|
||||
ST21NFCA_PP2LRI(atr_res->ppi));
|
||||
break;
|
||||
default:
|
||||
if (err == 0)
|
||||
kfree_skb(skb);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
int st21nfca_im_send_atr_req(struct nfc_hci_dev *hdev, u8 *gb, size_t gb_len)
|
||||
{
|
||||
struct sk_buff *skb;
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
struct st21nfca_atr_req *atr_req;
|
||||
struct nfc_target *target;
|
||||
uint size;
|
||||
|
||||
info->dep_info.to = ST21NFCA_DEFAULT_TIMEOUT;
|
||||
size = ST21NFCA_ATR_REQ_MIN_SIZE + gb_len;
|
||||
if (size > ST21NFCA_ATR_REQ_MAX_SIZE) {
|
||||
PROTOCOL_ERR("14.6.1.1");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
skb =
|
||||
alloc_skb(sizeof(struct st21nfca_atr_req) + gb_len + 1, GFP_KERNEL);
|
||||
if (!skb)
|
||||
return -ENOMEM;
|
||||
|
||||
skb_reserve(skb, 1);
|
||||
|
||||
skb_put(skb, sizeof(struct st21nfca_atr_req));
|
||||
|
||||
atr_req = (struct st21nfca_atr_req *)skb->data;
|
||||
memset(atr_req, 0, sizeof(struct st21nfca_atr_req));
|
||||
|
||||
atr_req->cmd0 = ST21NFCA_NFCIP1_REQ;
|
||||
atr_req->cmd1 = ST21NFCA_NFCIP1_ATR_REQ;
|
||||
memset(atr_req->nfcid3, 0, NFC_NFCID3_MAXSIZE);
|
||||
target = hdev->ndev->targets;
|
||||
|
||||
if (target->sensf_res)
|
||||
memcpy(atr_req->nfcid3, target->sensf_res,
|
||||
target->sensf_res_len);
|
||||
else
|
||||
get_random_bytes(atr_req->nfcid3, NFC_NFCID3_MAXSIZE);
|
||||
|
||||
atr_req->did = 0x0;
|
||||
|
||||
atr_req->bsi = 0x00;
|
||||
atr_req->bri = 0x00;
|
||||
atr_req->ppi = ST21NFCA_LR_BITS_PAYLOAD_SIZE_254B;
|
||||
if (gb_len) {
|
||||
atr_req->ppi |= ST21NFCA_GB_BIT;
|
||||
memcpy(skb_put(skb, gb_len), gb, gb_len);
|
||||
}
|
||||
atr_req->length = sizeof(struct st21nfca_atr_req) + hdev->gb_len;
|
||||
|
||||
*skb_push(skb, 1) = info->dep_info.to | 0x10; /* timeout */
|
||||
|
||||
info->async_cb_type = ST21NFCA_CB_TYPE_READER_F;
|
||||
info->async_cb_context = info;
|
||||
info->async_cb = st21nfca_im_recv_atr_res_cb;
|
||||
info->dep_info.bri = atr_req->bri;
|
||||
info->dep_info.bsi = atr_req->bsi;
|
||||
info->dep_info.lri = ST21NFCA_PP2LRI(atr_req->ppi);
|
||||
|
||||
return nfc_hci_send_cmd_async(hdev, ST21NFCA_RF_READER_F_GATE,
|
||||
ST21NFCA_WR_XCHG_DATA, skb->data,
|
||||
skb->len, info->async_cb, info);
|
||||
}
|
||||
EXPORT_SYMBOL(st21nfca_im_send_atr_req);
|
||||
|
||||
static void st21nfca_im_recv_dep_res_cb(void *context, struct sk_buff *skb,
|
||||
int err)
|
||||
{
|
||||
struct st21nfca_hci_info *info = context;
|
||||
struct st21nfca_dep_req_res *dep_res;
|
||||
|
||||
int size;
|
||||
|
||||
if (err != 0)
|
||||
return;
|
||||
|
||||
if (IS_ERR(skb))
|
||||
return;
|
||||
|
||||
switch (info->async_cb_type) {
|
||||
case ST21NFCA_CB_TYPE_READER_F:
|
||||
dep_res = (struct st21nfca_dep_req_res *)skb->data;
|
||||
|
||||
size = 3;
|
||||
if (skb->len < size)
|
||||
goto exit;
|
||||
|
||||
if (ST21NFCA_NFC_DEP_DID_BIT_SET(dep_res->pfb))
|
||||
size++;
|
||||
if (ST21NFCA_NFC_DEP_NAD_BIT_SET(dep_res->pfb))
|
||||
size++;
|
||||
|
||||
if (skb->len < size)
|
||||
goto exit;
|
||||
|
||||
skb_trim(skb, skb->len - 1);
|
||||
|
||||
/* Receiving DEP_REQ - Decoding */
|
||||
switch (ST21NFCA_NFC_DEP_PFB_TYPE(dep_res->pfb)) {
|
||||
case ST21NFCA_NFC_DEP_PFB_ACK_NACK_PDU:
|
||||
pr_err("Received a ACK/NACK PDU\n");
|
||||
case ST21NFCA_NFC_DEP_PFB_I_PDU:
|
||||
info->dep_info.curr_nfc_dep_pni =
|
||||
ST21NFCA_NFC_DEP_PFB_PNI(dep_res->pfb + 1);
|
||||
size++;
|
||||
skb_pull(skb, size);
|
||||
nfc_tm_data_received(info->hdev->ndev, skb);
|
||||
break;
|
||||
case ST21NFCA_NFC_DEP_PFB_SUPERVISOR_PDU:
|
||||
pr_err("Received a SUPERVISOR PDU\n");
|
||||
skb_pull(skb, size);
|
||||
*skb_push(skb, 1) = ST21NFCA_NFCIP1_DEP_REQ;
|
||||
*skb_push(skb, 1) = ST21NFCA_NFCIP1_REQ;
|
||||
*skb_push(skb, 1) = skb->len;
|
||||
*skb_push(skb, 1) = info->dep_info.to | 0x10;
|
||||
|
||||
st21nfca_im_send_pdu(info, skb);
|
||||
break;
|
||||
}
|
||||
|
||||
return;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
exit:
|
||||
if (err == 0)
|
||||
kfree_skb(skb);
|
||||
}
|
||||
|
||||
int st21nfca_im_send_dep_req(struct nfc_hci_dev *hdev, struct sk_buff *skb)
|
||||
{
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
|
||||
info->async_cb_type = ST21NFCA_CB_TYPE_READER_F;
|
||||
info->async_cb_context = info;
|
||||
info->async_cb = st21nfca_im_recv_dep_res_cb;
|
||||
|
||||
*skb_push(skb, 1) = info->dep_info.curr_nfc_dep_pni;
|
||||
*skb_push(skb, 1) = ST21NFCA_NFCIP1_DEP_REQ;
|
||||
*skb_push(skb, 1) = ST21NFCA_NFCIP1_REQ;
|
||||
*skb_push(skb, 1) = skb->len;
|
||||
|
||||
*skb_push(skb, 1) = info->dep_info.to | 0x10;
|
||||
|
||||
return nfc_hci_send_cmd_async(hdev, ST21NFCA_RF_READER_F_GATE,
|
||||
ST21NFCA_WR_XCHG_DATA,
|
||||
skb->data, skb->len,
|
||||
info->async_cb, info);
|
||||
}
|
||||
EXPORT_SYMBOL(st21nfca_im_send_dep_req);
|
||||
|
||||
void st21nfca_dep_init(struct nfc_hci_dev *hdev)
|
||||
{
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
|
||||
INIT_WORK(&info->dep_info.tx_work, st21nfca_tx_work);
|
||||
info->dep_info.curr_nfc_dep_pni = 0;
|
||||
info->dep_info.idx = 0;
|
||||
info->dep_info.to = ST21NFCA_DEFAULT_TIMEOUT;
|
||||
}
|
||||
EXPORT_SYMBOL(st21nfca_dep_init);
|
||||
|
||||
void st21nfca_dep_deinit(struct nfc_hci_dev *hdev)
|
||||
{
|
||||
struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
|
||||
|
||||
cancel_work_sync(&info->dep_info.tx_work);
|
||||
}
|
||||
EXPORT_SYMBOL(st21nfca_dep_deinit);
|
||||
43
drivers/nfc/st21nfca/st21nfca_dep.h
Normal file
43
drivers/nfc/st21nfca/st21nfca_dep.h
Normal file
@ -0,0 +1,43 @@
|
||||
/*
|
||||
* Copyright (C) 2014 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/>.
|
||||
*/
|
||||
|
||||
#ifndef __ST21NFCA_DEP_H
|
||||
#define __ST21NFCA_DEP_H
|
||||
|
||||
#include <linux/skbuff.h>
|
||||
#include <linux/workqueue.h>
|
||||
|
||||
struct st21nfca_dep_info {
|
||||
struct sk_buff *tx_pending;
|
||||
struct work_struct tx_work;
|
||||
u8 curr_nfc_dep_pni;
|
||||
u32 idx;
|
||||
u8 to;
|
||||
u8 did;
|
||||
u8 bsi;
|
||||
u8 bri;
|
||||
u8 lri;
|
||||
} __packed;
|
||||
|
||||
int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev, struct sk_buff *skb,
|
||||
u8 gate);
|
||||
int st21nfca_tm_send_dep_res(struct nfc_hci_dev *hdev, struct sk_buff *skb);
|
||||
|
||||
int st21nfca_im_send_atr_req(struct nfc_hci_dev *hdev, u8 *gb, size_t gb_len);
|
||||
int st21nfca_im_send_dep_req(struct nfc_hci_dev *hdev, struct sk_buff *skb);
|
||||
void st21nfca_dep_init(struct nfc_hci_dev *hdev);
|
||||
void st21nfca_dep_deinit(struct nfc_hci_dev *hdev);
|
||||
#endif /* __ST21NFCA_DEP_H */
|
||||
Loading…
Reference in New Issue
Block a user