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e237e7ae 1/** @file\r
d80ed2a7 2 Definition for the USB mass storage Bulk-Only Transport protocol,\r
3 based on the "Universal Serial Bus Mass Storage Class Bulk-Only\r
4 Transport" Revision 1.0, September 31, 1999.\r
cc5166ff 5\r
39840c50 6Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>\r
cd5ebaa0 7This program and the accompanying materials\r
e237e7ae 8are licensed and made available under the terms and conditions of the BSD License\r
9which accompanies this distribution. The full text of the license may be found at\r
10http://opensource.org/licenses/bsd-license.php\r
11\r
12THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
13WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
14\r
e237e7ae 15**/\r
16\r
17#ifndef _EFI_USBMASS_BOT_H_\r
18#define _EFI_USBMASS_BOT_H_\r
19\r
d80ed2a7 20extern USB_MASS_TRANSPORT mUsbBotTransport;\r
21\r
1ccdbf2a 22//\r
23// Usb Bulk-Only class specfic request\r
24//\r
25#define USB_BOT_RESET_REQUEST 0xFF ///< Bulk-Only Mass Storage Reset\r
26#define USB_BOT_GETLUN_REQUEST 0xFE ///< Get Max Lun\r
27#define USB_BOT_CBW_SIGNATURE 0x43425355 ///< dCBWSignature, tag the packet as CBW\r
28#define USB_BOT_CSW_SIGNATURE 0x53425355 ///< dCSWSignature, tag the packet as CSW\r
29#define USB_BOT_MAX_LUN 0x0F ///< Lun number is from 0 to 15\r
30#define USB_BOT_MAX_CMDLEN 16 ///< Maxium number of command from command set\r
e237e7ae 31\r
1ccdbf2a 32//\r
33// Usb BOT command block status values\r
34//\r
35#define USB_BOT_COMMAND_OK 0x00 ///< Command passed, good status\r
36#define USB_BOT_COMMAND_FAILED 0x01 ///< Command failed\r
37#define USB_BOT_COMMAND_ERROR 0x02 ///< Phase error, need to reset the device\r
e237e7ae 38\r
1ccdbf2a 39//\r
40// Usb Bot retry to get CSW, refers to specification[BOT10-5.3, it says 2 times]\r
41//\r
42#define USB_BOT_RECV_CSW_RETRY 3\r
e237e7ae 43\r
1ccdbf2a 44//\r
45// Usb Bot wait device reset complete, set by experience\r
46// \r
47#define USB_BOT_RESET_DEVICE_STALL (100 * USB_MASS_1_MILLISECOND)\r
48\r
49//\r
50// Usb Bot transport timeout, set by experience\r
51//\r
52#define USB_BOT_SEND_CBW_TIMEOUT (3 * USB_MASS_1_SECOND)\r
53#define USB_BOT_RECV_CSW_TIMEOUT (3 * USB_MASS_1_SECOND)\r
54#define USB_BOT_RESET_DEVICE_TIMEOUT (3 * USB_MASS_1_SECOND)\r
e237e7ae 55\r
e237e7ae 56#pragma pack(1)\r
d80ed2a7 57///\r
58/// The CBW (Command Block Wrapper) structures used by the USB BOT protocol.\r
59///\r
e237e7ae 60typedef struct {\r
61 UINT32 Signature;\r
62 UINT32 Tag;\r
d80ed2a7 63 UINT32 DataLen; ///< Length of data between CBW and CSW\r
64 UINT8 Flag; ///< Bit 7, 0 ~ Data-Out, 1 ~ Data-In\r
65 UINT8 Lun; ///< Lun number. Bits 0~3 are used\r
66 UINT8 CmdLen; ///< Length of the command. Bits 0~4 are used\r
e237e7ae 67 UINT8 CmdBlock[USB_BOT_MAX_CMDLEN];\r
68} USB_BOT_CBW;\r
69\r
d80ed2a7 70///\r
71/// The and CSW (Command Status Wrapper) structures used by the USB BOT protocol.\r
72///\r
e237e7ae 73typedef struct {\r
74 UINT32 Signature;\r
75 UINT32 Tag;\r
76 UINT32 DataResidue;\r
77 UINT8 CmdStatus;\r
78} USB_BOT_CSW;\r
79#pragma pack()\r
80\r
e237e7ae 81typedef struct {\r
d80ed2a7 82 //\r
83 // Put Interface at the first field to make it easy to distinguish BOT/CBI Protocol instance\r
84 //\r
e237e7ae 85 EFI_USB_INTERFACE_DESCRIPTOR Interface;\r
86 EFI_USB_ENDPOINT_DESCRIPTOR *BulkInEndpoint;\r
87 EFI_USB_ENDPOINT_DESCRIPTOR *BulkOutEndpoint;\r
88 UINT32 CbwTag;\r
89 EFI_USB_IO_PROTOCOL *UsbIo;\r
90} USB_BOT_PROTOCOL;\r
91\r
d80ed2a7 92/**\r
93 Initializes USB BOT protocol.\r
94\r
95 This function initializes the USB mass storage class BOT protocol.\r
96 It will save its context which is a USB_BOT_PROTOCOL structure\r
97 in the Context if Context isn't NULL.\r
98\r
99 @param UsbIo The USB I/O Protocol instance\r
100 @param Context The buffer to save the context to\r
101\r
102 @retval EFI_SUCCESS The device is successfully initialized.\r
103 @retval EFI_UNSUPPORTED The transport protocol doesn't support the device.\r
104 @retval Other The USB BOT initialization fails.\r
105\r
106**/\r
107EFI_STATUS\r
108UsbBotInit (\r
109 IN EFI_USB_IO_PROTOCOL *UsbIo,\r
110 OUT VOID **Context OPTIONAL\r
111 );\r
112\r
113/**\r
114 Call the USB Mass Storage Class BOT protocol to issue\r
115 the command/data/status circle to execute the commands.\r
116\r
117 @param Context The context of the BOT protocol, that is,\r
118 USB_BOT_PROTOCOL\r
119 @param Cmd The high level command\r
120 @param CmdLen The command length\r
121 @param DataDir The direction of the data transfer\r
122 @param Data The buffer to hold data\r
123 @param DataLen The length of the data\r
124 @param Lun The number of logic unit\r
125 @param Timeout The time to wait command\r
126 @param CmdStatus The result of high level command execution\r
127\r
128 @retval EFI_SUCCESS The command is executed successfully.\r
ed356b9e 129 @retval Other Failed to execute command\r
d80ed2a7 130\r
131**/\r
132EFI_STATUS\r
133UsbBotExecCommand (\r
134 IN VOID *Context,\r
135 IN VOID *Cmd,\r
136 IN UINT8 CmdLen,\r
137 IN EFI_USB_DATA_DIRECTION DataDir,\r
138 IN VOID *Data,\r
139 IN UINT32 DataLen,\r
140 IN UINT8 Lun,\r
141 IN UINT32 Timeout,\r
142 OUT UINT32 *CmdStatus\r
143 );\r
144\r
145/**\r
146 Reset the USB mass storage device by BOT protocol.\r
147\r
148 @param Context The context of the BOT protocol, that is,\r
149 USB_BOT_PROTOCOL.\r
150 @param ExtendedVerification If FALSE, just issue Bulk-Only Mass Storage Reset request.\r
151 If TRUE, additionally reset parent hub port.\r
152\r
153 @retval EFI_SUCCESS The device is reset.\r
154 @retval Others Failed to reset the device..\r
155\r
156**/\r
157EFI_STATUS\r
158UsbBotResetDevice (\r
159 IN VOID *Context,\r
160 IN BOOLEAN ExtendedVerification\r
161 );\r
162\r
163/**\r
164 Get the max LUN (Logical Unit Number) of USB mass storage device.\r
165\r
166 @param Context The context of the BOT protocol, that is, USB_BOT_PROTOCOL\r
167 @param MaxLun Return pointer to the max number of LUN. (e.g. MaxLun=1 means LUN0 and\r
168 LUN1 in all.)\r
169\r
170 @retval EFI_SUCCESS Max LUN is got successfully.\r
171 @retval Others Fail to execute this request.\r
172\r
173**/\r
174EFI_STATUS\r
175UsbBotGetMaxLun (\r
176 IN VOID *Context,\r
177 OUT UINT8 *MaxLun\r
178 );\r
179\r
180/**\r
181 Clean up the resource used by this BOT protocol.\r
182\r
183 @param Context The context of the BOT protocol, that is, USB_BOT_PROTOCOL.\r
184\r
185 @retval EFI_SUCCESS The resource is cleaned up.\r
186\r
187**/\r
188EFI_STATUS\r
189UsbBotCleanUp (\r
190 IN VOID *Context\r
191 );\r
192\r
e237e7ae 193#endif\r