1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2017
*
* Eddie Cai <eddie.cai.linux@gmail.com>
*/
#ifndef _F_ROCKUSB_H_
#define _F_ROCKUSB_H_
#include <blk.h>
#define ROCKUSB_VERSION "0.1"
#define ROCKUSB_INTERFACE_CLASS 0xff
#define ROCKUSB_INTERFACE_SUB_CLASS 0x06
#define ROCKUSB_INTERFACE_PROTOCOL 0x05
#define RX_ENDPOINT_MAXIMUM_PACKET_SIZE_2_0 0x0200
#define RX_ENDPOINT_MAXIMUM_PACKET_SIZE_1_1 0x0040
#define TX_ENDPOINT_MAXIMUM_PACKET_SIZE 0x0040
#define EP_BUFFER_SIZE 4096
/*
* EP_BUFFER_SIZE must always be an integral multiple of maxpacket size
* (64 or 512 or 1024), else we break on certain controllers like DWC3
* that expect bulk OUT requests to be divisible by maxpacket size.
*/
#define RKUSB_BUF_SIZE EP_BUFFER_SIZE * 2
#define RKUSB_STATUS_IDLE 0
#define RKUSB_STATUS_CMD 1
#define RKUSB_STATUS_RXDATA 2
#define RKUSB_STATUS_TXDATA 3
#define RKUSB_STATUS_CSW 4
#define RKUSB_STATUS_RXDATA_PREPARE 5
#define RKUSB_STATUS_TXDATA_PREPARE 6
enum rkusb_command {
K_FW_TEST_UNIT_READY = 0x00,
K_FW_READ_FLASH_ID = 0x01,
K_FW_SET_DEVICE_ID = 0x02,
K_FW_TEST_BAD_BLOCK = 0x03,
K_FW_READ_10 = 0x04,
K_FW_WRITE_10 = 0x05,
K_FW_ERASE_10 = 0x06,
K_FW_WRITE_SPARE = 0x07,
K_FW_READ_SPARE = 0x08,
K_FW_ERASE_10_FORCE = 0x0b,
K_FW_GET_VERSION = 0x0c,
K_FW_LBA_READ_10 = 0x14,
K_FW_LBA_WRITE_10 = 0x15,
K_FW_ERASE_SYS_DISK = 0x16,
K_FW_SDRAM_READ_10 = 0x17,
K_FW_SDRAM_WRITE_10 = 0x18,
K_FW_SDRAM_EXECUTE = 0x19,
K_FW_READ_FLASH_INFO = 0x1A,
K_FW_GET_CHIP_VER = 0x1B,
K_FW_LOW_FORMAT = 0x1C,
K_FW_SET_RESET_FLAG = 0x1E,
K_FW_SPI_READ_10 = 0x21,
K_FW_SPI_WRITE_10 = 0x22,
K_FW_SESSION = 0X30,
K_FW_RESET = 0xff,
};
#define CBW_DIRECTION_OUT 0x00
#define CBW_DIRECTION_IN 0x80
struct cmd_dispatch_info {
enum rkusb_command cmd;
/* call back function to handle rockusb command */
void (*cb)(struct usb_ep *ep, struct usb_request *req);
};
/* Bulk-only data structures */
/* Command Block Wrapper */
struct fsg_bulk_cb_wrap {
__le32 signature; /* Contains 'USBC' */
u32 tag; /* Unique per command id */
__le32 data_transfer_length; /* Size of the data */
u8 flags; /* Direction in bit 7 */
u8 lun; /* lun (normally 0) */
u8 length; /* Of the CDB, <= MAX_COMMAND_SIZE */
u8 CDB[16]; /* Command Data Block */
};
#define USB_BULK_CB_WRAP_LEN 31
#define USB_BULK_CB_SIG 0x43425355 /* Spells out USBC */
#define USB_BULK_IN_FLAG 0x80
/* Command status Wrapper */
struct bulk_cs_wrap {
__le32 signature; /* Should = 'USBS' */
u32 tag; /* Same as original command */
__le32 residue; /* Amount not transferred */
u8 status; /* See below */
};
#define USB_BULK_CS_WRAP_LEN 13
#define USB_BULK_CS_SIG 0x53425355 /* Spells out 'USBS' */
#define USB_STATUS_PASS 0
#define USB_STATUS_FAIL 1
#define USB_STATUS_PHASE_ERROR 2
#define CSW_GOOD 0x00
#define CSW_FAIL 0x01
struct f_rockusb {
struct usb_function usb_function;
struct usb_ep *in_ep, *out_ep;
struct usb_request *in_req, *out_req;
char *dev_type;
unsigned int dev_index;
unsigned int tag;
unsigned int lba;
unsigned int dl_size;
unsigned int dl_bytes;
struct blk_desc *desc;
int reboot_flag;
void *buf;
void *buf_head;
};
/* init rockusb device, tell rockusb which device you want to read/write*/
void rockusb_dev_init(char *dev_type, int dev_index);
#endif /* _F_ROCKUSB_H_ */
|
