kernel/drivers/nfc/s3fwrn5/firmware.h

   1 /*
   2  * NCI based driver for Samsung S3FWRN5 NFC chip
   3  *
   4  * Copyright (C) 2015 Samsung Electrnoics
   5  * Robert Baldyga <r.baldyga@samsung.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms and conditions of the GNU General Public License,
   9  * version 2 or later, as published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef __LOCAL_S3FWRN5_FIRMWARE_H_
  21 #define __LOCAL_S3FWRN5_FIRMWARE_H_
  22
  23 /* FW Message Types */
  24 #define S3FWRN5_FW_MSG_CMD                      0x00
  25 #define S3FWRN5_FW_MSG_RSP                      0x01
  26 #define S3FWRN5_FW_MSG_DATA                     0x02
  27
  28 /* FW Return Codes */
  29 #define S3FWRN5_FW_RET_SUCCESS                  0x00
  30 #define S3FWRN5_FW_RET_MESSAGE_TYPE_INVALID     0x01
  31 #define S3FWRN5_FW_RET_COMMAND_INVALID          0x02
  32 #define S3FWRN5_FW_RET_PAGE_DATA_OVERFLOW       0x03
  33 #define S3FWRN5_FW_RET_SECT_DATA_OVERFLOW       0x04
  34 #define S3FWRN5_FW_RET_AUTHENTICATION_FAIL      0x05
  35 #define S3FWRN5_FW_RET_FLASH_OPERATION_FAIL     0x06
  36 #define S3FWRN5_FW_RET_ADDRESS_OUT_OF_RANGE     0x07
  37 #define S3FWRN5_FW_RET_PARAMETER_INVALID        0x08
  38
  39 /* ---- FW Packet structures ---- */
  40 #define S3FWRN5_FW_HDR_SIZE 4
  41
  42 struct s3fwrn5_fw_header {
  43         __u8 type;
  44         __u8 code;
  45         __u16 len;
  46 };
  47
  48 #define S3FWRN5_FW_CMD_RESET                    0x00
  49
  50 #define S3FWRN5_FW_CMD_GET_BOOTINFO             0x01
  51
  52 struct s3fwrn5_fw_cmd_get_bootinfo_rsp {
  53         __u8 hw_version[4];
  54         __u16 sector_size;
  55         __u16 page_size;
  56         __u16 frame_max_size;
  57         __u16 hw_buffer_size;
  58 };
  59
  60 #define S3FWRN5_FW_CMD_ENTER_UPDATE_MODE        0x02
  61
  62 struct s3fwrn5_fw_cmd_enter_updatemode {
  63         __u16 hashcode_size;
  64         __u16 signature_size;
  65 };
  66
  67 #define S3FWRN5_FW_CMD_UPDATE_SECTOR            0x04
  68
  69 struct s3fwrn5_fw_cmd_update_sector {
  70         __u32 base_address;
  71 };
  72
  73 #define S3FWRN5_FW_CMD_COMPLETE_UPDATE_MODE     0x05
  74
  75 struct s3fwrn5_fw_image {
  76         const struct firmware *fw;
  77
  78         char date[13];
  79         u32 version;
  80         const void *sig;
  81         u32 sig_size;
  82         const void *image;
  83         u32 image_sectors;
  84         const void *custom_sig;
  85         u32 custom_sig_size;
  86 };
  87
  88 struct s3fwrn5_fw_info {
  89         struct nci_dev *ndev;
  90         struct s3fwrn5_fw_image fw;
  91         char fw_name[NFC_FIRMWARE_NAME_MAXSIZE + 1];
  92
  93         const void *sig;
  94         u32 sig_size;
  95         u32 sector_size;
  96         u32 base_addr;
  97
  98         struct completion completion;
  99         struct sk_buff *rsp;
 100         char parity;
 101 };
 102
 103 void s3fwrn5_fw_init(struct s3fwrn5_fw_info *fw_info, const char *fw_name);
 104 int s3fwrn5_fw_setup(struct s3fwrn5_fw_info *fw_info);
 105 bool s3fwrn5_fw_check_version(struct s3fwrn5_fw_info *fw_info, u32 version);
 106 int s3fwrn5_fw_download(struct s3fwrn5_fw_info *fw_info);
 107 void s3fwrn5_fw_cleanup(struct s3fwrn5_fw_info *fw_info);
 108
 109 int s3fwrn5_fw_recv_frame(struct nci_dev *ndev, struct sk_buff *skb);
 110
 111 #endif /* __LOCAL_S3FWRN5_FIRMWARE_H_ */