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1da177e4 LT |
1 | /* |
2 | * USB Communications Device Class (CDC) definitions | |
3 | * | |
4 | * CDC says how to talk to lots of different types of network adapters, | |
5 | * notably ethernet adapters and various modems. It's used mostly with | |
6 | * firmware based USB peripherals. | |
7 | */ | |
8 | ||
9 | #define USB_CDC_SUBCLASS_ACM 0x02 | |
10 | #define USB_CDC_SUBCLASS_ETHERNET 0x06 | |
11 | #define USB_CDC_SUBCLASS_WHCM 0x08 | |
12 | #define USB_CDC_SUBCLASS_DMM 0x09 | |
13 | #define USB_CDC_SUBCLASS_MDLM 0x0a | |
14 | #define USB_CDC_SUBCLASS_OBEX 0x0b | |
15 | ||
16 | #define USB_CDC_PROTO_NONE 0 | |
17 | ||
18 | #define USB_CDC_ACM_PROTO_AT_V25TER 1 | |
19 | #define USB_CDC_ACM_PROTO_AT_PCCA101 2 | |
20 | #define USB_CDC_ACM_PROTO_AT_PCCA101_WAKE 3 | |
21 | #define USB_CDC_ACM_PROTO_AT_GSM 4 | |
22 | #define USB_CDC_ACM_PROTO_AT_3G 5 | |
23 | #define USB_CDC_ACM_PROTO_AT_CDMA 6 | |
24 | #define USB_CDC_ACM_PROTO_VENDOR 0xff | |
25 | ||
26 | /*-------------------------------------------------------------------------*/ | |
27 | ||
28 | /* | |
29 | * Class-Specific descriptors ... there are a couple dozen of them | |
30 | */ | |
31 | ||
32 | #define USB_CDC_HEADER_TYPE 0x00 /* header_desc */ | |
33 | #define USB_CDC_CALL_MANAGEMENT_TYPE 0x01 /* call_mgmt_descriptor */ | |
34 | #define USB_CDC_ACM_TYPE 0x02 /* acm_descriptor */ | |
35 | #define USB_CDC_UNION_TYPE 0x06 /* union_desc */ | |
36 | #define USB_CDC_COUNTRY_TYPE 0x07 | |
00ab997d | 37 | #define USB_CDC_NETWORK_TERMINAL_TYPE 0x0a /* network_terminal_desc */ |
1da177e4 LT |
38 | #define USB_CDC_ETHERNET_TYPE 0x0f /* ether_desc */ |
39 | #define USB_CDC_WHCM_TYPE 0x11 | |
40 | #define USB_CDC_MDLM_TYPE 0x12 /* mdlm_desc */ | |
41 | #define USB_CDC_MDLM_DETAIL_TYPE 0x13 /* mdlm_detail_desc */ | |
42 | #define USB_CDC_DMM_TYPE 0x14 | |
43 | #define USB_CDC_OBEX_TYPE 0x15 | |
44 | ||
45 | /* "Header Functional Descriptor" from CDC spec 5.2.3.1 */ | |
46 | struct usb_cdc_header_desc { | |
47 | __u8 bLength; | |
48 | __u8 bDescriptorType; | |
49 | __u8 bDescriptorSubType; | |
50 | ||
51 | __le16 bcdCDC; | |
52 | } __attribute__ ((packed)); | |
53 | ||
54 | /* "Call Management Descriptor" from CDC spec 5.2.3.2 */ | |
55 | struct usb_cdc_call_mgmt_descriptor { | |
56 | __u8 bLength; | |
57 | __u8 bDescriptorType; | |
58 | __u8 bDescriptorSubType; | |
59 | ||
60 | __u8 bmCapabilities; | |
61 | #define USB_CDC_CALL_MGMT_CAP_CALL_MGMT 0x01 | |
62 | #define USB_CDC_CALL_MGMT_CAP_DATA_INTF 0x02 | |
63 | ||
64 | __u8 bDataInterface; | |
65 | } __attribute__ ((packed)); | |
66 | ||
67 | /* "Abstract Control Management Descriptor" from CDC spec 5.2.3.3 */ | |
68 | struct usb_cdc_acm_descriptor { | |
69 | __u8 bLength; | |
70 | __u8 bDescriptorType; | |
71 | __u8 bDescriptorSubType; | |
72 | ||
73 | __u8 bmCapabilities; | |
74 | } __attribute__ ((packed)); | |
75 | ||
76 | /* "Union Functional Descriptor" from CDC spec 5.2.3.8 */ | |
77 | struct usb_cdc_union_desc { | |
78 | __u8 bLength; | |
79 | __u8 bDescriptorType; | |
80 | __u8 bDescriptorSubType; | |
81 | ||
82 | __u8 bMasterInterface0; | |
83 | __u8 bSlaveInterface0; | |
84 | /* ... and there could be other slave interfaces */ | |
85 | } __attribute__ ((packed)); | |
86 | ||
00ab997d DB |
87 | /* "Network Channel Terminal Functional Descriptor" from CDC spec 5.2.3.11 */ |
88 | struct usb_cdc_network_terminal_desc { | |
89 | __u8 bLength; | |
90 | __u8 bDescriptorType; | |
91 | __u8 bDescriptorSubType; | |
92 | ||
93 | __u8 bEntityId; | |
94 | __u8 iName; | |
95 | __u8 bChannelIndex; | |
96 | __u8 bPhysicalInterface; | |
97 | } __attribute__ ((packed)); | |
98 | ||
1da177e4 LT |
99 | /* "Ethernet Networking Functional Descriptor" from CDC spec 5.2.3.16 */ |
100 | struct usb_cdc_ether_desc { | |
101 | __u8 bLength; | |
102 | __u8 bDescriptorType; | |
103 | __u8 bDescriptorSubType; | |
104 | ||
105 | __u8 iMACAddress; | |
106 | __le32 bmEthernetStatistics; | |
107 | __le16 wMaxSegmentSize; | |
108 | __le16 wNumberMCFilters; | |
109 | __u8 bNumberPowerFilters; | |
110 | } __attribute__ ((packed)); | |
111 | ||
112 | /* "MDLM Functional Descriptor" from CDC WMC spec 6.7.2.3 */ | |
113 | struct usb_cdc_mdlm_desc { | |
114 | __u8 bLength; | |
115 | __u8 bDescriptorType; | |
116 | __u8 bDescriptorSubType; | |
117 | ||
118 | __le16 bcdVersion; | |
119 | __u8 bGUID[16]; | |
120 | } __attribute__ ((packed)); | |
121 | ||
122 | /* "MDLM Detail Functional Descriptor" from CDC WMC spec 6.7.2.4 */ | |
123 | struct usb_cdc_mdlm_detail_desc { | |
124 | __u8 bLength; | |
125 | __u8 bDescriptorType; | |
126 | __u8 bDescriptorSubType; | |
127 | ||
128 | /* type is associated with mdlm_desc.bGUID */ | |
129 | __u8 bGuidDescriptorType; | |
84d79cb8 | 130 | __u8 bDetailData[0]; |
1da177e4 LT |
131 | } __attribute__ ((packed)); |
132 | ||
133 | /*-------------------------------------------------------------------------*/ | |
134 | ||
135 | /* | |
136 | * Class-Specific Control Requests (6.2) | |
137 | * | |
138 | * section 3.6.2.1 table 4 has the ACM profile, for modems. | |
139 | * section 3.8.2 table 10 has the ethernet profile. | |
140 | * | |
141 | * Microsoft's RNDIS stack for Ethernet is a vendor-specific CDC ACM variant, | |
142 | * heavily dependent on the encapsulated (proprietary) command mechanism. | |
143 | */ | |
144 | ||
145 | #define USB_CDC_SEND_ENCAPSULATED_COMMAND 0x00 | |
146 | #define USB_CDC_GET_ENCAPSULATED_RESPONSE 0x01 | |
147 | #define USB_CDC_REQ_SET_LINE_CODING 0x20 | |
148 | #define USB_CDC_REQ_GET_LINE_CODING 0x21 | |
149 | #define USB_CDC_REQ_SET_CONTROL_LINE_STATE 0x22 | |
150 | #define USB_CDC_REQ_SEND_BREAK 0x23 | |
151 | #define USB_CDC_SET_ETHERNET_MULTICAST_FILTERS 0x40 | |
152 | #define USB_CDC_SET_ETHERNET_PM_PATTERN_FILTER 0x41 | |
153 | #define USB_CDC_GET_ETHERNET_PM_PATTERN_FILTER 0x42 | |
154 | #define USB_CDC_SET_ETHERNET_PACKET_FILTER 0x43 | |
155 | #define USB_CDC_GET_ETHERNET_STATISTIC 0x44 | |
156 | ||
157 | /* Line Coding Structure from CDC spec 6.2.13 */ | |
158 | struct usb_cdc_line_coding { | |
159 | __le32 dwDTERate; | |
160 | __u8 bCharFormat; | |
161 | #define USB_CDC_1_STOP_BITS 0 | |
162 | #define USB_CDC_1_5_STOP_BITS 1 | |
163 | #define USB_CDC_2_STOP_BITS 2 | |
164 | ||
165 | __u8 bParityType; | |
166 | #define USB_CDC_NO_PARITY 0 | |
167 | #define USB_CDC_ODD_PARITY 1 | |
168 | #define USB_CDC_EVEN_PARITY 2 | |
169 | #define USB_CDC_MARK_PARITY 3 | |
170 | #define USB_CDC_SPACE_PARITY 4 | |
171 | ||
172 | __u8 bDataBits; | |
173 | } __attribute__ ((packed)); | |
174 | ||
175 | /* table 62; bits in multicast filter */ | |
176 | #define USB_CDC_PACKET_TYPE_PROMISCUOUS (1 << 0) | |
177 | #define USB_CDC_PACKET_TYPE_ALL_MULTICAST (1 << 1) /* no filter */ | |
178 | #define USB_CDC_PACKET_TYPE_DIRECTED (1 << 2) | |
179 | #define USB_CDC_PACKET_TYPE_BROADCAST (1 << 3) | |
180 | #define USB_CDC_PACKET_TYPE_MULTICAST (1 << 4) /* filtered */ | |
181 | ||
182 | ||
183 | /*-------------------------------------------------------------------------*/ | |
184 | ||
185 | /* | |
186 | * Class-Specific Notifications (6.3) sent by interrupt transfers | |
187 | * | |
188 | * section 3.8.2 table 11 of the CDC spec lists Ethernet notifications | |
189 | * section 3.6.2.1 table 5 specifies ACM notifications, accepted by RNDIS | |
190 | * RNDIS also defines its own bit-incompatible notifications | |
191 | */ | |
192 | ||
193 | #define USB_CDC_NOTIFY_NETWORK_CONNECTION 0x00 | |
194 | #define USB_CDC_NOTIFY_RESPONSE_AVAILABLE 0x01 | |
195 | #define USB_CDC_NOTIFY_SERIAL_STATE 0x20 | |
196 | #define USB_CDC_NOTIFY_SPEED_CHANGE 0x2a | |
197 | ||
198 | struct usb_cdc_notification { | |
199 | __u8 bmRequestType; | |
200 | __u8 bNotificationType; | |
201 | __le16 wValue; | |
202 | __le16 wIndex; | |
203 | __le16 wLength; | |
204 | } __attribute__ ((packed)); | |
205 |