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