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
  37 enum nxp_nci_mode {
  38         NXP_NCI_MODE_COLD,
  39         NXP_NCI_MODE_NCI,
  40         NXP_NCI_MODE_FW
  41 };
  42
  43 struct 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
  48 struct 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
  64 struct 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
  79 int nxp_nci_fw_download(struct nci_dev *ndev, const char *firmware_name);
  80 void nxp_nci_fw_work(struct work_struct *work);
  81 void nxp_nci_fw_recv_frame(struct nci_dev *ndev, struct sk_buff *skb);
  82 void nxp_nci_fw_work_complete(struct nxp_nci_info *info, int result);
  83
  84 int 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);
  88 void nxp_nci_remove(struct nci_dev *ndev);
  89
  90 #endif /* __LOCAL_NXP_NCI_H_ */