65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
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/*
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* NFC Digital Protocol stack
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* Copyright (c) 2013, Intel Corporation.
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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 it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*/
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#include "digital.h"
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#define DIGITAL_CMD_SENS_REQ 0x26
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#define DIGITAL_CMD_ALL_REQ 0x52
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#define DIGITAL_CMD_SEL_REQ_CL1 0x93
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#define DIGITAL_CMD_SEL_REQ_CL2 0x95
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#define DIGITAL_CMD_SEL_REQ_CL3 0x97
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#define DIGITAL_SDD_REQ_SEL_PAR 0x20
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#define DIGITAL_SDD_RES_CT 0x88
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#define DIGITAL_SDD_RES_LEN 5
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static void digital_in_recv_sens_res(struct nfc_digital_dev *ddev, void *arg,
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struct sk_buff *resp)
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{
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if (!IS_ERR(resp))
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dev_kfree_skb(resp);
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digital_poll_next_tech(ddev);
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}
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int digital_in_send_sens_req(struct nfc_digital_dev *ddev, u8 rf_tech)
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{
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struct sk_buff *skb;
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int rc;
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rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH,
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NFC_DIGITAL_RF_TECH_106A);
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if (rc)
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return rc;
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rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
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NFC_DIGITAL_FRAMING_NFCA_SHORT);
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if (rc)
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return rc;
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skb = digital_skb_alloc(ddev, 1);
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if (!skb)
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return -ENOMEM;
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*skb_put(skb, sizeof(u8)) = DIGITAL_CMD_SENS_REQ;
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rc = digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sens_res, NULL);
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if (rc)
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kfree_skb(skb);
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return rc;
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}
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