X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fnfc%2Fst21nfca%2Fst21nfca_dep.c;fp=kernel%2Fdrivers%2Fnfc%2Fst21nfca%2Fst21nfca_dep.c;h=0000000000000000000000000000000000000000;hb=e09b41010ba33a20a87472ee821fa407a5b8da36;hp=8882181d65de7c71c3f5940d9aee422d5a57ecd1;hpb=f93b97fd65072de626c074dbe099a1fff05ce060;p=kvmfornfv.git
diff --git a/kernel/drivers/nfc/st21nfca/st21nfca_dep.c b/kernel/drivers/nfc/st21nfca/st21nfca_dep.c
deleted file mode 100644
index 8882181d6..000000000
--- a/kernel/drivers/nfc/st21nfca/st21nfca_dep.c
+++ /dev/null
@@ -1,689 +0,0 @@
-/*
- * 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 .
- */
-
-#include
-
-#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_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
-
-#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;
-
- r = nfc_hci_send_event(hdev, ST21NFCA_RF_CARD_F_GATE,
- ST21NFCA_EVT_SEND_DATA, skb->data, skb->len);
- kfree_skb(skb);
- return r;
-}
-
-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 (!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;
-
- if (atr_req->length < sizeof(struct st21nfca_atr_req)) {
- r = -EPROTO;
- goto exit;
- }
-
- 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);
- if (r < 0)
- goto error;
-
- /*
- * 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 */
- r = nfc_hci_send_event(hdev, ST21NFCA_RF_CARD_F_GATE,
- ST21NFCA_EVT_CARD_F_BITRATE, bitrate, 2);
-error:
- kfree_skb(skb);
- return r;
-}
-
-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 (!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);
-
- 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;
- }
-
- skb_pull(skb, size);
-
- return nfc_tm_data_received(hdev->ndev, skb);
-exit:
- return r;
-}
-
-static int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev,
- struct sk_buff *skb)
-{
- 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;
-}
-
-/*
- * Returns:
- * <= 0: driver handled the event, skb consumed
- * 1: driver does not handle the event, please do standard processing
- */
-int st21nfca_dep_event_received(struct nfc_hci_dev *hdev,
- u8 event, struct sk_buff *skb)
-{
- int r = 0;
- struct st21nfca_hci_info *info = nfc_hci_get_clientdata(hdev);
-
- pr_debug("dep event: %d\n", event);
-
- switch (event) {
- case ST21NFCA_EVT_CARD_ACTIVATED:
- 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:
- r = st21nfca_tm_event_send_data(hdev, skb);
- if (r < 0)
- return r;
- return 0;
- default:
- return 1;
- }
- kfree_skb(skb);
- return r;
-}
-EXPORT_SYMBOL(st21nfca_dep_event_received);
-
-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);
-}
-
-#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 (!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:
- 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_len > 0)
- 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 (!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:
- 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);