xref: /openbmc/u-boot/drivers/usb/gadget/f_thor.h (revision ed36323f)
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