drivers/usb/gadget/f_thor.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * f_thor.h - USB TIZEN THOR - internal gadget definitions
   4  *
   5  * Copyright (C) 2013 Samsung Electronics
   6  * Lukasz Majewski  <l.majewski@samsung.com>
   7  */
   8
   9 #ifndef _USB_THOR_H_
  10 #define _USB_THOR_H_
  11
  12 #include <linux/compiler.h>
  13 #include <linux/sizes.h>
  14
  15 /* THOR Composite Gadget */
  16 #define STRING_MANUFACTURER_IDX 0
  17 #define STRING_PRODUCT_IDX              1
  18 #define STRING_SERIAL_IDX               2
  19
  20 /* ********************************************************** */
  21 /*                   THOR protocol definitions                */
  22 /* ********************************************************** */
  23
  24 /*
  25  * Attribute Vendor descriptor - necessary to prevent ZLP transmission
  26  * from Windows XP HOST PC
  27  */
  28 struct usb_cdc_attribute_vendor_descriptor {
  29         __u8 bLength;
  30         __u8 bDescriptorType;
  31         __u8 bDescriptorSubType;
  32         __u16 DAUType;
  33         __u16 DAULength;
  34         __u8 DAUValue;
  35 } __packed;
  36
  37 #define VER_PROTOCOL_MAJOR      5
  38 #define VER_PROTOCOL_MINOR      0
  39
  40 enum rqt {
  41         RQT_INFO = 200,
  42         RQT_CMD,
  43         RQT_DL,
  44         RQT_UL,
  45 };
  46
  47 enum rqt_data {
  48         /* RQT_INFO */
  49         RQT_INFO_VER_PROTOCOL = 1,
  50         RQT_INIT_VER_HW,
  51         RQT_INIT_VER_BOOT,
  52         RQT_INIT_VER_KERNEL,
  53         RQT_INIT_VER_PLATFORM,
  54         RQT_INIT_VER_CSC,
  55
  56         /* RQT_CMD */
  57         RQT_CMD_REBOOT = 1,
  58         RQT_CMD_POWEROFF,
  59         RQT_CMD_EFSCLEAR,
  60
  61         /* RQT_DL */
  62         RQT_DL_INIT = 1,
  63         RQT_DL_FILE_INFO,
  64         RQT_DL_FILE_START,
  65         RQT_DL_FILE_END,
  66         RQT_DL_EXIT,
  67
  68         /* RQT_UL */
  69         RQT_UL_INIT = 1,
  70         RQT_UL_START,
  71         RQT_UL_END,
  72         RQT_UL_EXIT,
  73 };
  74
  75 struct rqt_box {                /* total: 256B */
  76         s32 rqt;                /* request id */
  77         s32 rqt_data;           /* request data id */
  78         s32 int_data[14];       /* int data */
  79         char str_data[5][32];   /* string data */
  80         char md5[32];           /* md5 checksum */
  81 } __packed;
  82
  83 struct rsp_box {                /* total: 128B */
  84         s32 rsp;                /* response id (= request id) */
  85         s32 rsp_data;           /* response data id */
  86         s32 ack;                /* ack */
  87         s32 int_data[5];        /* int data */
  88         char str_data[3][32];   /* string data */
  89 } __packed;
  90
  91 struct data_rsp_box {           /* total: 8B */
  92         s32 ack;                /* response id (= request id) */
  93         s32 count;              /* response data id */
  94 } __packed;
  95
  96 enum {
  97         FILE_TYPE_NORMAL,
  98         FILE_TYPE_PIT,
  99 };
 100
 101 struct thor_dev {
 102         struct usb_gadget *gadget;
 103         struct usb_request *req; /* EP0 -> control responses */
 104
 105         /* IN/OUT EP's and correspoinding requests */
 106         struct usb_ep *in_ep, *out_ep, *int_ep;
 107         struct usb_request *in_req, *out_req;
 108
 109         /* Control flow variables */
 110         unsigned char configuration_done;
 111         unsigned char rxdata;
 112         unsigned char txdata;
 113 };
 114
 115 struct f_thor {
 116         struct usb_function usb_function;
 117         struct thor_dev *dev;
 118 };
 119
 120 #define F_NAME_BUF_SIZE 32
 121 #define THOR_PACKET_SIZE SZ_1M      /* 1 MiB */
 122 #define THOR_STORE_UNIT_SIZE SZ_32M /* 32 MiB */
 123 #ifdef CONFIG_THOR_RESET_OFF
 124 #define RESET_DONE 0xFFFFFFFF
 125 #endif
 126 #endif /* _USB_THOR_H_ */