LXR linux/drivers/nfc/nxp-nci/nxp-nci.h

   1/*
   2 * Copyright (C) 2014  NXP Semiconductors  All rights reserved.
   3 *
   4 * Authors: Clément Perrochaud <clement.perrochaud@nxp.com>
   5 *
   6 * Derived from PN544 device driver:
   7 * Copyright (C) 2012  Intel Corporation. All rights reserved.
   8 *
   9 * This program is free software; you can redistribute it and/or modify it
  10 * under the terms and conditions of the GNU General Public License,
  11 * version 2, as published by the Free Software Foundation.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, see <http://www.gnu.org/licenses/>.
  20*/
  21
  22#ifndef __LOCAL_NXP_NCI_H_
  23#define __LOCAL_NXP_NCI_H_
  24
  25#include <linux/completion.h>
  26#include <linux/firmware.h>
  27#include <linux/nfc.h>
  28#include <linux/platform_data/nxp-nci.h>
  29
  30#include <net/nfc/nci_core.h>
  31
  32#define NXP_NCI_FW_HDR_LEN      2
  33#define NXP_NCI_FW_CRC_LEN      2
  34
  35#define NXP_NCI_FW_FRAME_LEN_MASK       0x03FF
  36
  37enum nxp_nci_mode {
  38        NXP_NCI_MODE_COLD,
  39        NXP_NCI_MODE_NCI,
  40        NXP_NCI_MODE_FW
  41};
  42
  43struct nxp_nci_phy_ops {
  44        int (*set_mode)(void *id, enum nxp_nci_mode mode);
  45        int (*write)(void *id, struct sk_buff *skb);
  46};
  47
  48struct nxp_nci_fw_info {
  49        char name[NFC_FIRMWARE_NAME_MAXSIZE + 1];
  50        const struct firmware *fw;
  51
  52        size_t size;
  53        size_t written;
  54
  55        const u8 *data;
  56        size_t frame_size;
  57
  58        struct work_struct work;
  59        struct completion cmd_completion;
  60
  61        int cmd_result;
  62};
  63
  64struct nxp_nci_info {
  65        struct nci_dev *ndev;
  66        void *phy_id;
  67        struct device *pdev;
  68
  69        enum nxp_nci_mode mode;
  70
  71        const struct nxp_nci_phy_ops *phy_ops;
  72        unsigned int max_payload;
  73
  74        struct mutex info_lock;
  75
  76        struct nxp_nci_fw_info fw_info;
  77};
  78
  79int nxp_nci_fw_download(struct nci_dev *ndev, const char *firmware_name);
  80void nxp_nci_fw_work(struct work_struct *work);
  81void nxp_nci_fw_recv_frame(struct nci_dev *ndev, struct sk_buff *skb);
  82void nxp_nci_fw_work_complete(struct nxp_nci_info *info, int result);
  83
  84int nxp_nci_probe(void *phy_id, struct device *pdev,
  85                  const struct nxp_nci_phy_ops *phy_ops,
  86                  unsigned int max_payload,
  87                  struct nci_dev **ndev);
  88void nxp_nci_remove(struct nci_dev *ndev);
  89
  90#endif /* __LOCAL_NXP_NCI_H_ */
  91