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-rw-r--r--include/linux/usb/cdc.h412
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diff --git a/include/linux/usb/cdc.h b/include/linux/usb/cdc.h
deleted file mode 100644
index 81a927930bfd..000000000000
--- a/include/linux/usb/cdc.h
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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#ifndef __LINUX_USB_CDC_H
10#define __LINUX_USB_CDC_H
11
12#include <linux/types.h>
13
14#define USB_CDC_SUBCLASS_ACM 0x02
15#define USB_CDC_SUBCLASS_ETHERNET 0x06
16#define USB_CDC_SUBCLASS_WHCM 0x08
17#define USB_CDC_SUBCLASS_DMM 0x09
18#define USB_CDC_SUBCLASS_MDLM 0x0a
19#define USB_CDC_SUBCLASS_OBEX 0x0b
20#define USB_CDC_SUBCLASS_EEM 0x0c
21#define USB_CDC_SUBCLASS_NCM 0x0d
22
23#define USB_CDC_PROTO_NONE 0
24
25#define USB_CDC_ACM_PROTO_AT_V25TER 1
26#define USB_CDC_ACM_PROTO_AT_PCCA101 2
27#define USB_CDC_ACM_PROTO_AT_PCCA101_WAKE 3
28#define USB_CDC_ACM_PROTO_AT_GSM 4
29#define USB_CDC_ACM_PROTO_AT_3G 5
30#define USB_CDC_ACM_PROTO_AT_CDMA 6
31#define USB_CDC_ACM_PROTO_VENDOR 0xff
32
33#define USB_CDC_PROTO_EEM 7
34
35#define USB_CDC_NCM_PROTO_NTB 1
36
37/*-------------------------------------------------------------------------*/
38
39/*
40 * Class-Specific descriptors ... there are a couple dozen of them
41 */
42
43#define USB_CDC_HEADER_TYPE 0x00 /* header_desc */
44#define USB_CDC_CALL_MANAGEMENT_TYPE 0x01 /* call_mgmt_descriptor */
45#define USB_CDC_ACM_TYPE 0x02 /* acm_descriptor */
46#define USB_CDC_UNION_TYPE 0x06 /* union_desc */
47#define USB_CDC_COUNTRY_TYPE 0x07
48#define USB_CDC_NETWORK_TERMINAL_TYPE 0x0a /* network_terminal_desc */
49#define USB_CDC_ETHERNET_TYPE 0x0f /* ether_desc */
50#define USB_CDC_WHCM_TYPE 0x11
51#define USB_CDC_MDLM_TYPE 0x12 /* mdlm_desc */
52#define USB_CDC_MDLM_DETAIL_TYPE 0x13 /* mdlm_detail_desc */
53#define USB_CDC_DMM_TYPE 0x14
54#define USB_CDC_OBEX_TYPE 0x15
55#define USB_CDC_NCM_TYPE 0x1a
56
57/* "Header Functional Descriptor" from CDC spec 5.2.3.1 */
58struct usb_cdc_header_desc {
59 __u8 bLength;
60 __u8 bDescriptorType;
61 __u8 bDescriptorSubType;
62
63 __le16 bcdCDC;
64} __attribute__ ((packed));
65
66/* "Call Management Descriptor" from CDC spec 5.2.3.2 */
67struct usb_cdc_call_mgmt_descriptor {
68 __u8 bLength;
69 __u8 bDescriptorType;
70 __u8 bDescriptorSubType;
71
72 __u8 bmCapabilities;
73#define USB_CDC_CALL_MGMT_CAP_CALL_MGMT 0x01
74#define USB_CDC_CALL_MGMT_CAP_DATA_INTF 0x02
75
76 __u8 bDataInterface;
77} __attribute__ ((packed));
78
79/* "Abstract Control Management Descriptor" from CDC spec 5.2.3.3 */
80struct usb_cdc_acm_descriptor {
81 __u8 bLength;
82 __u8 bDescriptorType;
83 __u8 bDescriptorSubType;
84
85 __u8 bmCapabilities;
86} __attribute__ ((packed));
87
88/* capabilities from 5.2.3.3 */
89
90#define USB_CDC_COMM_FEATURE 0x01
91#define USB_CDC_CAP_LINE 0x02
92#define USB_CDC_CAP_BRK 0x04
93#define USB_CDC_CAP_NOTIFY 0x08
94
95/* "Union Functional Descriptor" from CDC spec 5.2.3.8 */
96struct usb_cdc_union_desc {
97 __u8 bLength;
98 __u8 bDescriptorType;
99 __u8 bDescriptorSubType;
100
101 __u8 bMasterInterface0;
102 __u8 bSlaveInterface0;
103 /* ... and there could be other slave interfaces */
104} __attribute__ ((packed));
105
106/* "Country Selection Functional Descriptor" from CDC spec 5.2.3.9 */
107struct usb_cdc_country_functional_desc {
108 __u8 bLength;
109 __u8 bDescriptorType;
110 __u8 bDescriptorSubType;
111
112 __u8 iCountryCodeRelDate;
113 __le16 wCountyCode0;
114 /* ... and there can be a lot of country codes */
115} __attribute__ ((packed));
116
117/* "Network Channel Terminal Functional Descriptor" from CDC spec 5.2.3.11 */
118struct usb_cdc_network_terminal_desc {
119 __u8 bLength;
120 __u8 bDescriptorType;
121 __u8 bDescriptorSubType;
122
123 __u8 bEntityId;
124 __u8 iName;
125 __u8 bChannelIndex;
126 __u8 bPhysicalInterface;
127} __attribute__ ((packed));
128
129/* "Ethernet Networking Functional Descriptor" from CDC spec 5.2.3.16 */
130struct usb_cdc_ether_desc {
131 __u8 bLength;
132 __u8 bDescriptorType;
133 __u8 bDescriptorSubType;
134
135 __u8 iMACAddress;
136 __le32 bmEthernetStatistics;
137 __le16 wMaxSegmentSize;
138 __le16 wNumberMCFilters;
139 __u8 bNumberPowerFilters;
140} __attribute__ ((packed));
141
142/* "Telephone Control Model Functional Descriptor" from CDC WMC spec 6.3..3 */
143struct usb_cdc_dmm_desc {
144 __u8 bFunctionLength;
145 __u8 bDescriptorType;
146 __u8 bDescriptorSubtype;
147 __u16 bcdVersion;
148 __le16 wMaxCommand;
149} __attribute__ ((packed));
150
151/* "MDLM Functional Descriptor" from CDC WMC spec 6.7.2.3 */
152struct usb_cdc_mdlm_desc {
153 __u8 bLength;
154 __u8 bDescriptorType;
155 __u8 bDescriptorSubType;
156
157 __le16 bcdVersion;
158 __u8 bGUID[16];
159} __attribute__ ((packed));
160
161/* "MDLM Detail Functional Descriptor" from CDC WMC spec 6.7.2.4 */
162struct usb_cdc_mdlm_detail_desc {
163 __u8 bLength;
164 __u8 bDescriptorType;
165 __u8 bDescriptorSubType;
166
167 /* type is associated with mdlm_desc.bGUID */
168 __u8 bGuidDescriptorType;
169 __u8 bDetailData[0];
170} __attribute__ ((packed));
171
172/* "OBEX Control Model Functional Descriptor" */
173struct usb_cdc_obex_desc {
174 __u8 bLength;
175 __u8 bDescriptorType;
176 __u8 bDescriptorSubType;
177
178 __le16 bcdVersion;
179} __attribute__ ((packed));
180
181/* "NCM Control Model Functional Descriptor" */
182struct usb_cdc_ncm_desc {
183 __u8 bLength;
184 __u8 bDescriptorType;
185 __u8 bDescriptorSubType;
186
187 __le16 bcdNcmVersion;
188 __u8 bmNetworkCapabilities;
189} __attribute__ ((packed));
190/*-------------------------------------------------------------------------*/
191
192/*
193 * Class-Specific Control Requests (6.2)
194 *
195 * section 3.6.2.1 table 4 has the ACM profile, for modems.
196 * section 3.8.2 table 10 has the ethernet profile.
197 *
198 * Microsoft's RNDIS stack for Ethernet is a vendor-specific CDC ACM variant,
199 * heavily dependent on the encapsulated (proprietary) command mechanism.
200 */
201
202#define USB_CDC_SEND_ENCAPSULATED_COMMAND 0x00
203#define USB_CDC_GET_ENCAPSULATED_RESPONSE 0x01
204#define USB_CDC_REQ_SET_LINE_CODING 0x20
205#define USB_CDC_REQ_GET_LINE_CODING 0x21
206#define USB_CDC_REQ_SET_CONTROL_LINE_STATE 0x22
207#define USB_CDC_REQ_SEND_BREAK 0x23
208#define USB_CDC_SET_ETHERNET_MULTICAST_FILTERS 0x40
209#define USB_CDC_SET_ETHERNET_PM_PATTERN_FILTER 0x41
210#define USB_CDC_GET_ETHERNET_PM_PATTERN_FILTER 0x42
211#define USB_CDC_SET_ETHERNET_PACKET_FILTER 0x43
212#define USB_CDC_GET_ETHERNET_STATISTIC 0x44
213#define USB_CDC_GET_NTB_PARAMETERS 0x80
214#define USB_CDC_GET_NET_ADDRESS 0x81
215#define USB_CDC_SET_NET_ADDRESS 0x82
216#define USB_CDC_GET_NTB_FORMAT 0x83
217#define USB_CDC_SET_NTB_FORMAT 0x84
218#define USB_CDC_GET_NTB_INPUT_SIZE 0x85
219#define USB_CDC_SET_NTB_INPUT_SIZE 0x86
220#define USB_CDC_GET_MAX_DATAGRAM_SIZE 0x87
221#define USB_CDC_SET_MAX_DATAGRAM_SIZE 0x88
222#define USB_CDC_GET_CRC_MODE 0x89
223#define USB_CDC_SET_CRC_MODE 0x8a
224
225/* Line Coding Structure from CDC spec 6.2.13 */
226struct usb_cdc_line_coding {
227 __le32 dwDTERate;
228 __u8 bCharFormat;
229#define USB_CDC_1_STOP_BITS 0
230#define USB_CDC_1_5_STOP_BITS 1
231#define USB_CDC_2_STOP_BITS 2
232
233 __u8 bParityType;
234#define USB_CDC_NO_PARITY 0
235#define USB_CDC_ODD_PARITY 1
236#define USB_CDC_EVEN_PARITY 2
237#define USB_CDC_MARK_PARITY 3
238#define USB_CDC_SPACE_PARITY 4
239
240 __u8 bDataBits;
241} __attribute__ ((packed));
242
243/* table 62; bits in multicast filter */
244#define USB_CDC_PACKET_TYPE_PROMISCUOUS (1 << 0)
245#define USB_CDC_PACKET_TYPE_ALL_MULTICAST (1 << 1) /* no filter */
246#define USB_CDC_PACKET_TYPE_DIRECTED (1 << 2)
247#define USB_CDC_PACKET_TYPE_BROADCAST (1 << 3)
248#define USB_CDC_PACKET_TYPE_MULTICAST (1 << 4) /* filtered */
249
250
251/*-------------------------------------------------------------------------*/
252
253/*
254 * Class-Specific Notifications (6.3) sent by interrupt transfers
255 *
256 * section 3.8.2 table 11 of the CDC spec lists Ethernet notifications
257 * section 3.6.2.1 table 5 specifies ACM notifications, accepted by RNDIS
258 * RNDIS also defines its own bit-incompatible notifications
259 */
260
261#define USB_CDC_NOTIFY_NETWORK_CONNECTION 0x00
262#define USB_CDC_NOTIFY_RESPONSE_AVAILABLE 0x01
263#define USB_CDC_NOTIFY_SERIAL_STATE 0x20
264#define USB_CDC_NOTIFY_SPEED_CHANGE 0x2a
265
266struct usb_cdc_notification {
267 __u8 bmRequestType;
268 __u8 bNotificationType;
269 __le16 wValue;
270 __le16 wIndex;
271 __le16 wLength;
272} __attribute__ ((packed));
273
274struct usb_cdc_speed_change {
275 __le32 DLBitRRate; /* contains the downlink bit rate (IN pipe) */
276 __le32 ULBitRate; /* contains the uplink bit rate (OUT pipe) */
277} __attribute__ ((packed));
278
279/*-------------------------------------------------------------------------*/
280
281/*
282 * Class Specific structures and constants
283 *
284 * CDC NCM NTB parameters structure, CDC NCM subclass 6.2.1
285 *
286 */
287
288struct usb_cdc_ncm_ntb_parameters {
289 __le16 wLength;
290 __le16 bmNtbFormatsSupported;
291 __le32 dwNtbInMaxSize;
292 __le16 wNdpInDivisor;
293 __le16 wNdpInPayloadRemainder;
294 __le16 wNdpInAlignment;
295 __le16 wPadding1;
296 __le32 dwNtbOutMaxSize;
297 __le16 wNdpOutDivisor;
298 __le16 wNdpOutPayloadRemainder;
299 __le16 wNdpOutAlignment;
300 __le16 wNtbOutMaxDatagrams;
301} __attribute__ ((packed));
302
303/*
304 * CDC NCM transfer headers, CDC NCM subclass 3.2
305 */
306
307#define USB_CDC_NCM_NTH16_SIGN 0x484D434E /* NCMH */
308#define USB_CDC_NCM_NTH32_SIGN 0x686D636E /* ncmh */
309
310struct usb_cdc_ncm_nth16 {
311 __le32 dwSignature;
312 __le16 wHeaderLength;
313 __le16 wSequence;
314 __le16 wBlockLength;
315 __le16 wNdpIndex;
316} __attribute__ ((packed));
317
318struct usb_cdc_ncm_nth32 {
319 __le32 dwSignature;
320 __le16 wHeaderLength;
321 __le16 wSequence;
322 __le32 dwBlockLength;
323 __le32 dwNdpIndex;
324} __attribute__ ((packed));
325
326/*
327 * CDC NCM datagram pointers, CDC NCM subclass 3.3
328 */
329
330#define USB_CDC_NCM_NDP16_CRC_SIGN 0x314D434E /* NCM1 */
331#define USB_CDC_NCM_NDP16_NOCRC_SIGN 0x304D434E /* NCM0 */
332#define USB_CDC_NCM_NDP32_CRC_SIGN 0x316D636E /* ncm1 */
333#define USB_CDC_NCM_NDP32_NOCRC_SIGN 0x306D636E /* ncm0 */
334
335/* 16-bit NCM Datagram Pointer Entry */
336struct usb_cdc_ncm_dpe16 {
337 __le16 wDatagramIndex;
338 __le16 wDatagramLength;
339} __attribute__((__packed__));
340
341/* 16-bit NCM Datagram Pointer Table */
342struct usb_cdc_ncm_ndp16 {
343 __le32 dwSignature;
344 __le16 wLength;
345 __le16 wNextNdpIndex;
346 struct usb_cdc_ncm_dpe16 dpe16[0];
347} __attribute__ ((packed));
348
349/* 32-bit NCM Datagram Pointer Entry */
350struct usb_cdc_ncm_dpe32 {
351 __le32 dwDatagramIndex;
352 __le32 dwDatagramLength;
353} __attribute__((__packed__));
354
355/* 32-bit NCM Datagram Pointer Table */
356struct usb_cdc_ncm_ndp32 {
357 __le32 dwSignature;
358 __le16 wLength;
359 __le16 wReserved6;
360 __le32 dwNextNdpIndex;
361 __le32 dwReserved12;
362 struct usb_cdc_ncm_dpe32 dpe32[0];
363} __attribute__ ((packed));
364
365/* CDC NCM subclass 3.2.1 and 3.2.2 */
366#define USB_CDC_NCM_NDP16_INDEX_MIN 0x000C
367#define USB_CDC_NCM_NDP32_INDEX_MIN 0x0010
368
369/* CDC NCM subclass 3.3.3 Datagram Formatting */
370#define USB_CDC_NCM_DATAGRAM_FORMAT_CRC 0x30
371#define USB_CDC_NCM_DATAGRAM_FORMAT_NOCRC 0X31
372
373/* CDC NCM subclass 4.2 NCM Communications Interface Protocol Code */
374#define USB_CDC_NCM_PROTO_CODE_NO_ENCAP_COMMANDS 0x00
375#define USB_CDC_NCM_PROTO_CODE_EXTERN_PROTO 0xFE
376
377/* CDC NCM subclass 5.2.1 NCM Functional Descriptor, bmNetworkCapabilities */
378#define USB_CDC_NCM_NCAP_ETH_FILTER (1 << 0)
379#define USB_CDC_NCM_NCAP_NET_ADDRESS (1 << 1)
380#define USB_CDC_NCM_NCAP_ENCAP_COMMAND (1 << 2)
381#define USB_CDC_NCM_NCAP_MAX_DATAGRAM_SIZE (1 << 3)
382#define USB_CDC_NCM_NCAP_CRC_MODE (1 << 4)
383#define USB_CDC_NCM_NCAP_NTB_INPUT_SIZE (1 << 5)
384
385/* CDC NCM subclass Table 6-3: NTB Parameter Structure */
386#define USB_CDC_NCM_NTB16_SUPPORTED (1 << 0)
387#define USB_CDC_NCM_NTB32_SUPPORTED (1 << 1)
388
389/* CDC NCM subclass Table 6-3: NTB Parameter Structure */
390#define USB_CDC_NCM_NDP_ALIGN_MIN_SIZE 0x04
391#define USB_CDC_NCM_NTB_MAX_LENGTH 0x1C
392
393/* CDC NCM subclass 6.2.5 SetNtbFormat */
394#define USB_CDC_NCM_NTB16_FORMAT 0x00
395#define USB_CDC_NCM_NTB32_FORMAT 0x01
396
397/* CDC NCM subclass 6.2.7 SetNtbInputSize */
398#define USB_CDC_NCM_NTB_MIN_IN_SIZE 2048
399#define USB_CDC_NCM_NTB_MIN_OUT_SIZE 2048
400
401/* NTB Input Size Structure */
402struct usb_cdc_ncm_ndp_input_size {
403 __le32 dwNtbInMaxSize;
404 __le16 wNtbInMaxDatagrams;
405 __le16 wReserved;
406} __attribute__ ((packed));
407
408/* CDC NCM subclass 6.2.11 SetCrcMode */
409#define USB_CDC_NCM_CRC_NOT_APPENDED 0x00
410#define USB_CDC_NCM_CRC_APPENDED 0x01
411
412#endif /* __LINUX_USB_CDC_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-11-24 02:01:13 -0500