projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 59ee2361 TE |
1 | /* |
| 2 | * NFC Digital Protocol stack | |
| 3 | * Copyright (c) 2013, Intel Corporation. | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify it | |
| 6 | * under the terms and conditions of the GNU General Public License, | |
| 7 | * version 2, as published by the Free Software Foundation. | |
| 8 | * | |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT | |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 12 | * more details. | |
| 13 | * | |
| 14 | */ | |
| 15 | ||
| 16 | #include "digital.h" | |
| 17 | ||
| 18 | #define DIGITAL_CMD_SENS_REQ 0x26 | |
| 19 | #define DIGITAL_CMD_ALL_REQ 0x52 | |
| 20 | #define DIGITAL_CMD_SEL_REQ_CL1 0x93 | |
| 21 | #define DIGITAL_CMD_SEL_REQ_CL2 0x95 | |
| 22 | #define DIGITAL_CMD_SEL_REQ_CL3 0x97 | |
| 23 | ||
| 24 | #define DIGITAL_SDD_REQ_SEL_PAR 0x20 | |
| 25 | ||
| 26 | #define DIGITAL_SDD_RES_CT 0x88 | |
| 27 | #define DIGITAL_SDD_RES_LEN 5 | |
| 28 | ||
| 29 | static void digital_in_recv_sens_res(struct nfc_digital_dev *ddev, void *arg, | |
| 30 | struct sk_buff *resp) | |
| 31 | { | |
| 32 | if (!IS_ERR(resp)) | |
| 33 | dev_kfree_skb(resp); | |
| 34 | ||
| 35 | digital_poll_next_tech(ddev); | |
| 36 | } | |
| 37 | ||
| 38 | int digital_in_send_sens_req(struct nfc_digital_dev *ddev, u8 rf_tech) | |
| 39 | { | |
| 40 | struct sk_buff *skb; | |
| 41 | int rc; | |
| 42 | ||
| 43 | rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, | |
| 44 | NFC_DIGITAL_RF_TECH_106A); | |
| 45 | if (rc) | |
| 46 | return rc; | |
| 47 | ||
| 48 | rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING, | |
| 49 | NFC_DIGITAL_FRAMING_NFCA_SHORT); | |
| 50 | if (rc) | |
| 51 | return rc; | |
| 52 | ||
| 53 | skb = digital_skb_alloc(ddev, 1); | |
| 54 | if (!skb) | |
| 55 | return -ENOMEM; | |
| 56 | ||
| 57 | *skb_put(skb, sizeof(u8)) = DIGITAL_CMD_SENS_REQ; | |
| 58 | ||
| 59 | rc = digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sens_res, NULL); | |
| 60 | if (rc) | |
| 61 | kfree_skb(skb); | |
| 62 | ||
| 63 | return rc; | |
| 64 | } |