projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 8af00d48 EL |
1 | /* |
| 2 | * nop (passthrough) Link Layer Control | |
| 3 | * | |
| 4 | * Copyright (C) 2012 Intel Corporation. All rights reserved. | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify it | |
| 7 | * under the terms and conditions of the GNU General Public License, | |
| 8 | * version 2, as published by the Free Software Foundation. | |
| 9 | * | |
| 10 | * This program is distributed in the hope that it will be useful, | |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | * GNU General Public License for more details. | |
| 14 | * | |
| 15 | * You should have received a copy of the GNU General Public License | |
| 98b32dec | 16 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
| 8af00d48 EL |
17 | */ |
| 18 | ||
| 19 | #include <linux/types.h> | |
| 8af00d48 EL |
20 | |
| 21 | #include "llc.h" | |
| 22 | ||
| 23 | struct llc_nop { | |
| 24 | struct nfc_hci_dev *hdev; | |
| 25 | xmit_to_drv_t xmit_to_drv; | |
| 26 | rcv_to_hci_t rcv_to_hci; | |
| 27 | int tx_headroom; | |
| 28 | int tx_tailroom; | |
| 29 | llc_failure_t llc_failure; | |
| 30 | }; | |
| 31 | ||
| 32 | static void *llc_nop_init(struct nfc_hci_dev *hdev, xmit_to_drv_t xmit_to_drv, | |
| 33 | rcv_to_hci_t rcv_to_hci, int tx_headroom, | |
| 34 | int tx_tailroom, int *rx_headroom, int *rx_tailroom, | |
| 35 | llc_failure_t llc_failure) | |
| 36 | { | |
| 37 | struct llc_nop *llc_nop; | |
| 38 | ||
| 39 | *rx_headroom = 0; | |
| 40 | *rx_tailroom = 0; | |
| 41 | ||
| 42 | llc_nop = kzalloc(sizeof(struct llc_nop), GFP_KERNEL); | |
| 43 | if (llc_nop == NULL) | |
| 44 | return NULL; | |
| 45 | ||
| 46 | llc_nop->hdev = hdev; | |
| 47 | llc_nop->xmit_to_drv = xmit_to_drv; | |
| 48 | llc_nop->rcv_to_hci = rcv_to_hci; | |
| 49 | llc_nop->tx_headroom = tx_headroom; | |
| 50 | llc_nop->tx_tailroom = tx_tailroom; | |
| 51 | llc_nop->llc_failure = llc_failure; | |
| 52 | ||
| 53 | return llc_nop; | |
| 54 | } | |
| 55 | ||
| 56 | static void llc_nop_deinit(struct nfc_llc *llc) | |
| 57 | { | |
| 58 | kfree(nfc_llc_get_data(llc)); | |
| 59 | } | |
| 60 | ||
| 61 | static int llc_nop_start(struct nfc_llc *llc) | |
| 62 | { | |
| 63 | return 0; | |
| 64 | } | |
| 65 | ||
| 66 | static int llc_nop_stop(struct nfc_llc *llc) | |
| 67 | { | |
| 68 | return 0; | |
| 69 | } | |
| 70 | ||
| 71 | static void llc_nop_rcv_from_drv(struct nfc_llc *llc, struct sk_buff *skb) | |
| 72 | { | |
| 73 | struct llc_nop *llc_nop = nfc_llc_get_data(llc); | |
| 74 | ||
| 75 | llc_nop->rcv_to_hci(llc_nop->hdev, skb); | |
| 76 | } | |
| 77 | ||
| 78 | static int llc_nop_xmit_from_hci(struct nfc_llc *llc, struct sk_buff *skb) | |
| 79 | { | |
| 80 | struct llc_nop *llc_nop = nfc_llc_get_data(llc); | |
| 81 | ||
| 82 | return llc_nop->xmit_to_drv(llc_nop->hdev, skb); | |
| 83 | } | |
| 84 | ||
| 85 | static struct nfc_llc_ops llc_nop_ops = { | |
| 86 | .init = llc_nop_init, | |
| 87 | .deinit = llc_nop_deinit, | |
| 88 | .start = llc_nop_start, | |
| 89 | .stop = llc_nop_stop, | |
| 90 | .rcv_from_drv = llc_nop_rcv_from_drv, | |
| 91 | .xmit_from_hci = llc_nop_xmit_from_hci, | |
| 92 | }; | |
| 93 | ||
| a7d0281b | 94 | int nfc_llc_nop_register(void) |
| 8af00d48 EL |
95 | { |
| 96 | return nfc_llc_register(LLC_NOP_NAME, &llc_nop_ops); | |
| 97 | } |