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 */
28struct 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
40enum rqt {
41	RQT_INFO = 200,
42	RQT_CMD,
43	RQT_DL,
44	RQT_UL,
45};
46
47enum 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
75struct 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
83struct 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
91struct data_rsp_box {		/* total: 8B */
92	s32 ack;		/* response id (= request id) */
93	s32 count;		/* response data id */
94} __packed;
95
96enum {
97	FILE_TYPE_NORMAL,
98	FILE_TYPE_PIT,
99};
100
101struct 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
115struct 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_ */
127