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-rw-r--r--include/linux/usb/ch9.h960
1 files changed, 1 insertions, 959 deletions
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index d1d732c2838d..9c210f2283df 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -29,887 +29,11 @@
29 * someone that the two other points are non-issues for that 29 * someone that the two other points are non-issues for that
30 * particular descriptor type. 30 * particular descriptor type.
31 */ 31 */
32
33#ifndef __LINUX_USB_CH9_H 32#ifndef __LINUX_USB_CH9_H
34#define __LINUX_USB_CH9_H 33#define __LINUX_USB_CH9_H
35 34
36#include <linux/types.h> /* __u8 etc */ 35#include <uapi/linux/usb/ch9.h>
37#include <asm/byteorder.h> /* le16_to_cpu */
38
39/*-------------------------------------------------------------------------*/
40
41/* CONTROL REQUEST SUPPORT */
42
43/*
44 * USB directions
45 *
46 * This bit flag is used in endpoint descriptors' bEndpointAddress field.
47 * It's also one of three fields in control requests bRequestType.
48 */
49#define USB_DIR_OUT 0 /* to device */
50#define USB_DIR_IN 0x80 /* to host */
51
52/*
53 * USB types, the second of three bRequestType fields
54 */
55#define USB_TYPE_MASK (0x03 << 5)
56#define USB_TYPE_STANDARD (0x00 << 5)
57#define USB_TYPE_CLASS (0x01 << 5)
58#define USB_TYPE_VENDOR (0x02 << 5)
59#define USB_TYPE_RESERVED (0x03 << 5)
60
61/*
62 * USB recipients, the third of three bRequestType fields
63 */
64#define USB_RECIP_MASK 0x1f
65#define USB_RECIP_DEVICE 0x00
66#define USB_RECIP_INTERFACE 0x01
67#define USB_RECIP_ENDPOINT 0x02
68#define USB_RECIP_OTHER 0x03
69/* From Wireless USB 1.0 */
70#define USB_RECIP_PORT 0x04
71#define USB_RECIP_RPIPE 0x05
72
73/*
74 * Standard requests, for the bRequest field of a SETUP packet.
75 *
76 * These are qualified by the bRequestType field, so that for example
77 * TYPE_CLASS or TYPE_VENDOR specific feature flags could be retrieved
78 * by a GET_STATUS request.
79 */
80#define USB_REQ_GET_STATUS 0x00
81#define USB_REQ_CLEAR_FEATURE 0x01
82#define USB_REQ_SET_FEATURE 0x03
83#define USB_REQ_SET_ADDRESS 0x05
84#define USB_REQ_GET_DESCRIPTOR 0x06
85#define USB_REQ_SET_DESCRIPTOR 0x07
86#define USB_REQ_GET_CONFIGURATION 0x08
87#define USB_REQ_SET_CONFIGURATION 0x09
88#define USB_REQ_GET_INTERFACE 0x0A
89#define USB_REQ_SET_INTERFACE 0x0B
90#define USB_REQ_SYNCH_FRAME 0x0C
91#define USB_REQ_SET_SEL 0x30
92#define USB_REQ_SET_ISOCH_DELAY 0x31
93
94#define USB_REQ_SET_ENCRYPTION 0x0D /* Wireless USB */
95#define USB_REQ_GET_ENCRYPTION 0x0E
96#define USB_REQ_RPIPE_ABORT 0x0E
97#define USB_REQ_SET_HANDSHAKE 0x0F
98#define USB_REQ_RPIPE_RESET 0x0F
99#define USB_REQ_GET_HANDSHAKE 0x10
100#define USB_REQ_SET_CONNECTION 0x11
101#define USB_REQ_SET_SECURITY_DATA 0x12
102#define USB_REQ_GET_SECURITY_DATA 0x13
103#define USB_REQ_SET_WUSB_DATA 0x14
104#define USB_REQ_LOOPBACK_DATA_WRITE 0x15
105#define USB_REQ_LOOPBACK_DATA_READ 0x16
106#define USB_REQ_SET_INTERFACE_DS 0x17
107
108/* The Link Power Management (LPM) ECN defines USB_REQ_TEST_AND_SET command,
109 * used by hubs to put ports into a new L1 suspend state, except that it
110 * forgot to define its number ...
111 */
112
113/*
114 * USB feature flags are written using USB_REQ_{CLEAR,SET}_FEATURE, and
115 * are read as a bit array returned by USB_REQ_GET_STATUS. (So there
116 * are at most sixteen features of each type.) Hubs may also support a
117 * new USB_REQ_TEST_AND_SET_FEATURE to put ports into L1 suspend.
118 */
119#define USB_DEVICE_SELF_POWERED 0 /* (read only) */
120#define USB_DEVICE_REMOTE_WAKEUP 1 /* dev may initiate wakeup */
121#define USB_DEVICE_TEST_MODE 2 /* (wired high speed only) */
122#define USB_DEVICE_BATTERY 2 /* (wireless) */
123#define USB_DEVICE_B_HNP_ENABLE 3 /* (otg) dev may initiate HNP */
124#define USB_DEVICE_WUSB_DEVICE 3 /* (wireless)*/
125#define USB_DEVICE_A_HNP_SUPPORT 4 /* (otg) RH port supports HNP */
126#define USB_DEVICE_A_ALT_HNP_SUPPORT 5 /* (otg) other RH port does */
127#define USB_DEVICE_DEBUG_MODE 6 /* (special devices only) */
128
129/*
130 * Test Mode Selectors
131 * See USB 2.0 spec Table 9-7
132 */
133#define TEST_J 1
134#define TEST_K 2
135#define TEST_SE0_NAK 3
136#define TEST_PACKET 4
137#define TEST_FORCE_EN 5
138
139/*
140 * New Feature Selectors as added by USB 3.0
141 * See USB 3.0 spec Table 9-6
142 */
143#define USB_DEVICE_U1_ENABLE 48 /* dev may initiate U1 transition */
144#define USB_DEVICE_U2_ENABLE 49 /* dev may initiate U2 transition */
145#define USB_DEVICE_LTM_ENABLE 50 /* dev may send LTM */
146#define USB_INTRF_FUNC_SUSPEND 0 /* function suspend */
147
148#define USB_INTR_FUNC_SUSPEND_OPT_MASK 0xFF00
149/*
150 * Suspend Options, Table 9-7 USB 3.0 spec
151 */
152#define USB_INTRF_FUNC_SUSPEND_LP (1 << (8 + 0))
153#define USB_INTRF_FUNC_SUSPEND_RW (1 << (8 + 1))
154
155#define USB_ENDPOINT_HALT 0 /* IN/OUT will STALL */
156
157/* Bit array elements as returned by the USB_REQ_GET_STATUS request. */
158#define USB_DEV_STAT_U1_ENABLED 2 /* transition into U1 state */
159#define USB_DEV_STAT_U2_ENABLED 3 /* transition into U2 state */
160#define USB_DEV_STAT_LTM_ENABLED 4 /* Latency tolerance messages */
161
162/**
163 * struct usb_ctrlrequest - SETUP data for a USB device control request
164 * @bRequestType: matches the USB bmRequestType field
165 * @bRequest: matches the USB bRequest field
166 * @wValue: matches the USB wValue field (le16 byte order)
167 * @wIndex: matches the USB wIndex field (le16 byte order)
168 * @wLength: matches the USB wLength field (le16 byte order)
169 *
170 * This structure is used to send control requests to a USB device. It matches
171 * the different fields of the USB 2.0 Spec section 9.3, table 9-2. See the
172 * USB spec for a fuller description of the different fields, and what they are
173 * used for.
174 *
175 * Note that the driver for any interface can issue control requests.
176 * For most devices, interfaces don't coordinate with each other, so
177 * such requests may be made at any time.
178 */
179struct usb_ctrlrequest {
180 __u8 bRequestType;
181 __u8 bRequest;
182 __le16 wValue;
183 __le16 wIndex;
184 __le16 wLength;
185} __attribute__ ((packed));
186
187/*-------------------------------------------------------------------------*/
188
189/*
190 * STANDARD DESCRIPTORS ... as returned by GET_DESCRIPTOR, or
191 * (rarely) accepted by SET_DESCRIPTOR.
192 *
193 * Note that all multi-byte values here are encoded in little endian
194 * byte order "on the wire". Within the kernel and when exposed
195 * through the Linux-USB APIs, they are not converted to cpu byte
196 * order; it is the responsibility of the client code to do this.
197 * The single exception is when device and configuration descriptors (but
198 * not other descriptors) are read from usbfs (i.e. /proc/bus/usb/BBB/DDD);
199 * in this case the fields are converted to host endianness by the kernel.
200 */
201
202/*
203 * Descriptor types ... USB 2.0 spec table 9.5
204 */
205#define USB_DT_DEVICE 0x01
206#define USB_DT_CONFIG 0x02
207#define USB_DT_STRING 0x03
208#define USB_DT_INTERFACE 0x04
209#define USB_DT_ENDPOINT 0x05
210#define USB_DT_DEVICE_QUALIFIER 0x06
211#define USB_DT_OTHER_SPEED_CONFIG 0x07
212#define USB_DT_INTERFACE_POWER 0x08
213/* these are from a minor usb 2.0 revision (ECN) */
214#define USB_DT_OTG 0x09
215#define USB_DT_DEBUG 0x0a
216#define USB_DT_INTERFACE_ASSOCIATION 0x0b
217/* these are from the Wireless USB spec */
218#define USB_DT_SECURITY 0x0c
219#define USB_DT_KEY 0x0d
220#define USB_DT_ENCRYPTION_TYPE 0x0e
221#define USB_DT_BOS 0x0f
222#define USB_DT_DEVICE_CAPABILITY 0x10
223#define USB_DT_WIRELESS_ENDPOINT_COMP 0x11
224#define USB_DT_WIRE_ADAPTER 0x21
225#define USB_DT_RPIPE 0x22
226#define USB_DT_CS_RADIO_CONTROL 0x23
227/* From the T10 UAS specification */
228#define USB_DT_PIPE_USAGE 0x24
229/* From the USB 3.0 spec */
230#define USB_DT_SS_ENDPOINT_COMP 0x30
231
232/* Conventional codes for class-specific descriptors. The convention is
233 * defined in the USB "Common Class" Spec (3.11). Individual class specs
234 * are authoritative for their usage, not the "common class" writeup.
235 */
236#define USB_DT_CS_DEVICE (USB_TYPE_CLASS | USB_DT_DEVICE)
237#define USB_DT_CS_CONFIG (USB_TYPE_CLASS | USB_DT_CONFIG)
238#define USB_DT_CS_STRING (USB_TYPE_CLASS | USB_DT_STRING)
239#define USB_DT_CS_INTERFACE (USB_TYPE_CLASS | USB_DT_INTERFACE)
240#define USB_DT_CS_ENDPOINT (USB_TYPE_CLASS | USB_DT_ENDPOINT)
241
242/* All standard descriptors have these 2 fields at the beginning */
243struct usb_descriptor_header {
244 __u8 bLength;
245 __u8 bDescriptorType;
246} __attribute__ ((packed));
247
248
249/*-------------------------------------------------------------------------*/
250
251/* USB_DT_DEVICE: Device descriptor */
252struct usb_device_descriptor {
253 __u8 bLength;
254 __u8 bDescriptorType;
255
256 __le16 bcdUSB;
257 __u8 bDeviceClass;
258 __u8 bDeviceSubClass;
259 __u8 bDeviceProtocol;
260 __u8 bMaxPacketSize0;
261 __le16 idVendor;
262 __le16 idProduct;
263 __le16 bcdDevice;
264 __u8 iManufacturer;
265 __u8 iProduct;
266 __u8 iSerialNumber;
267 __u8 bNumConfigurations;
268} __attribute__ ((packed));
269
270#define USB_DT_DEVICE_SIZE 18
271
272
273/*
274 * Device and/or Interface Class codes
275 * as found in bDeviceClass or bInterfaceClass
276 * and defined by www.usb.org documents
277 */
278#define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */
279#define USB_CLASS_AUDIO 1
280#define USB_CLASS_COMM 2
281#define USB_CLASS_HID 3
282#define USB_CLASS_PHYSICAL 5
283#define USB_CLASS_STILL_IMAGE 6
284#define USB_CLASS_PRINTER 7
285#define USB_CLASS_MASS_STORAGE 8
286#define USB_CLASS_HUB 9
287#define USB_CLASS_CDC_DATA 0x0a
288#define USB_CLASS_CSCID 0x0b /* chip+ smart card */
289#define USB_CLASS_CONTENT_SEC 0x0d /* content security */
290#define USB_CLASS_VIDEO 0x0e
291#define USB_CLASS_WIRELESS_CONTROLLER 0xe0
292#define USB_CLASS_MISC 0xef
293#define USB_CLASS_APP_SPEC 0xfe
294#define USB_CLASS_VENDOR_SPEC 0xff
295
296#define USB_SUBCLASS_VENDOR_SPEC 0xff
297
298/*-------------------------------------------------------------------------*/
299
300/* USB_DT_CONFIG: Configuration descriptor information.
301 *
302 * USB_DT_OTHER_SPEED_CONFIG is the same descriptor, except that the
303 * descriptor type is different. Highspeed-capable devices can look
304 * different depending on what speed they're currently running. Only
305 * devices with a USB_DT_DEVICE_QUALIFIER have any OTHER_SPEED_CONFIG
306 * descriptors.
307 */
308struct usb_config_descriptor {
309 __u8 bLength;
310 __u8 bDescriptorType;
311
312 __le16 wTotalLength;
313 __u8 bNumInterfaces;
314 __u8 bConfigurationValue;
315 __u8 iConfiguration;
316 __u8 bmAttributes;
317 __u8 bMaxPower;
318} __attribute__ ((packed));
319
320#define USB_DT_CONFIG_SIZE 9
321
322/* from config descriptor bmAttributes */
323#define USB_CONFIG_ATT_ONE (1 << 7) /* must be set */
324#define USB_CONFIG_ATT_SELFPOWER (1 << 6) /* self powered */
325#define USB_CONFIG_ATT_WAKEUP (1 << 5) /* can wakeup */
326#define USB_CONFIG_ATT_BATTERY (1 << 4) /* battery powered */
327
328/*-------------------------------------------------------------------------*/
329
330/* USB_DT_STRING: String descriptor */
331struct usb_string_descriptor {
332 __u8 bLength;
333 __u8 bDescriptorType;
334
335 __le16 wData[1]; /* UTF-16LE encoded */
336} __attribute__ ((packed));
337
338/* note that "string" zero is special, it holds language codes that
339 * the device supports, not Unicode characters.
340 */
341
342/*-------------------------------------------------------------------------*/
343
344/* USB_DT_INTERFACE: Interface descriptor */
345struct usb_interface_descriptor {
346 __u8 bLength;
347 __u8 bDescriptorType;
348
349 __u8 bInterfaceNumber;
350 __u8 bAlternateSetting;
351 __u8 bNumEndpoints;
352 __u8 bInterfaceClass;
353 __u8 bInterfaceSubClass;
354 __u8 bInterfaceProtocol;
355 __u8 iInterface;
356} __attribute__ ((packed));
357
358#define USB_DT_INTERFACE_SIZE 9
359
360/*-------------------------------------------------------------------------*/
361
362/* USB_DT_ENDPOINT: Endpoint descriptor */
363struct usb_endpoint_descriptor {
364 __u8 bLength;
365 __u8 bDescriptorType;
366
367 __u8 bEndpointAddress;
368 __u8 bmAttributes;
369 __le16 wMaxPacketSize;
370 __u8 bInterval;
371
372 /* NOTE: these two are _only_ in audio endpoints. */
373 /* use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof. */
374 __u8 bRefresh;
375 __u8 bSynchAddress;
376} __attribute__ ((packed));
377
378#define USB_DT_ENDPOINT_SIZE 7
379#define USB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */
380
381
382/*
383 * Endpoints
384 */
385#define USB_ENDPOINT_NUMBER_MASK 0x0f /* in bEndpointAddress */
386#define USB_ENDPOINT_DIR_MASK 0x80
387
388#define USB_ENDPOINT_XFERTYPE_MASK 0x03 /* in bmAttributes */
389#define USB_ENDPOINT_XFER_CONTROL 0
390#define USB_ENDPOINT_XFER_ISOC 1
391#define USB_ENDPOINT_XFER_BULK 2
392#define USB_ENDPOINT_XFER_INT 3
393#define USB_ENDPOINT_MAX_ADJUSTABLE 0x80
394
395/* The USB 3.0 spec redefines bits 5:4 of bmAttributes as interrupt ep type. */
396#define USB_ENDPOINT_INTRTYPE 0x30
397#define USB_ENDPOINT_INTR_PERIODIC (0 << 4)
398#define USB_ENDPOINT_INTR_NOTIFICATION (1 << 4)
399
400#define USB_ENDPOINT_SYNCTYPE 0x0c
401#define USB_ENDPOINT_SYNC_NONE (0 << 2)
402#define USB_ENDPOINT_SYNC_ASYNC (1 << 2)
403#define USB_ENDPOINT_SYNC_ADAPTIVE (2 << 2)
404#define USB_ENDPOINT_SYNC_SYNC (3 << 2)
405
406#define USB_ENDPOINT_USAGE_MASK 0x30
407#define USB_ENDPOINT_USAGE_DATA 0x00
408#define USB_ENDPOINT_USAGE_FEEDBACK 0x10
409#define USB_ENDPOINT_USAGE_IMPLICIT_FB 0x20 /* Implicit feedback Data endpoint */
410
411/*-------------------------------------------------------------------------*/
412
413/**
414 * usb_endpoint_num - get the endpoint's number
415 * @epd: endpoint to be checked
416 *
417 * Returns @epd's number: 0 to 15.
418 */
419static inline int usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
420{
421 return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
422}
423
424/**
425 * usb_endpoint_type - get the endpoint's transfer type
426 * @epd: endpoint to be checked
427 *
428 * Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according
429 * to @epd's transfer type.
430 */
431static inline int usb_endpoint_type(const struct usb_endpoint_descriptor *epd)
432{
433 return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
434}
435
436/**
437 * usb_endpoint_dir_in - check if the endpoint has IN direction
438 * @epd: endpoint to be checked
439 *
440 * Returns true if the endpoint is of type IN, otherwise it returns false.
441 */
442static inline int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd)
443{
444 return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN);
445}
446
447/**
448 * usb_endpoint_dir_out - check if the endpoint has OUT direction
449 * @epd: endpoint to be checked
450 *
451 * Returns true if the endpoint is of type OUT, otherwise it returns false.
452 */
453static inline int usb_endpoint_dir_out(
454 const struct usb_endpoint_descriptor *epd)
455{
456 return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
457}
458
459/**
460 * usb_endpoint_xfer_bulk - check if the endpoint has bulk transfer type
461 * @epd: endpoint to be checked
462 *
463 * Returns true if the endpoint is of type bulk, otherwise it returns false.
464 */
465static inline int usb_endpoint_xfer_bulk(
466 const struct usb_endpoint_descriptor *epd)
467{
468 return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
469 USB_ENDPOINT_XFER_BULK);
470}
471
472/**
473 * usb_endpoint_xfer_control - check if the endpoint has control transfer type
474 * @epd: endpoint to be checked
475 *
476 * Returns true if the endpoint is of type control, otherwise it returns false.
477 */
478static inline int usb_endpoint_xfer_control(
479 const struct usb_endpoint_descriptor *epd)
480{
481 return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
482 USB_ENDPOINT_XFER_CONTROL);
483}
484
485/**
486 * usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type
487 * @epd: endpoint to be checked
488 *
489 * Returns true if the endpoint is of type interrupt, otherwise it returns
490 * false.
491 */
492static inline int usb_endpoint_xfer_int(
493 const struct usb_endpoint_descriptor *epd)
494{
495 return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
496 USB_ENDPOINT_XFER_INT);
497}
498
499/**
500 * usb_endpoint_xfer_isoc - check if the endpoint has isochronous transfer type
501 * @epd: endpoint to be checked
502 *
503 * Returns true if the endpoint is of type isochronous, otherwise it returns
504 * false.
505 */
506static inline int usb_endpoint_xfer_isoc(
507 const struct usb_endpoint_descriptor *epd)
508{
509 return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
510 USB_ENDPOINT_XFER_ISOC);
511}
512
513/**
514 * usb_endpoint_is_bulk_in - check if the endpoint is bulk IN
515 * @epd: endpoint to be checked
516 *
517 * Returns true if the endpoint has bulk transfer type and IN direction,
518 * otherwise it returns false.
519 */
520static inline int usb_endpoint_is_bulk_in(
521 const struct usb_endpoint_descriptor *epd)
522{
523 return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd);
524}
525
526/**
527 * usb_endpoint_is_bulk_out - check if the endpoint is bulk OUT
528 * @epd: endpoint to be checked
529 *
530 * Returns true if the endpoint has bulk transfer type and OUT direction,
531 * otherwise it returns false.
532 */
533static inline int usb_endpoint_is_bulk_out(
534 const struct usb_endpoint_descriptor *epd)
535{
536 return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd);
537}
538
539/**
540 * usb_endpoint_is_int_in - check if the endpoint is interrupt IN
541 * @epd: endpoint to be checked
542 *
543 * Returns true if the endpoint has interrupt transfer type and IN direction,
544 * otherwise it returns false.
545 */
546static inline int usb_endpoint_is_int_in(
547 const struct usb_endpoint_descriptor *epd)
548{
549 return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd);
550}
551
552/**
553 * usb_endpoint_is_int_out - check if the endpoint is interrupt OUT
554 * @epd: endpoint to be checked
555 *
556 * Returns true if the endpoint has interrupt transfer type and OUT direction,
557 * otherwise it returns false.
558 */
559static inline int usb_endpoint_is_int_out(
560 const struct usb_endpoint_descriptor *epd)
561{
562 return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd);
563}
564
565/**
566 * usb_endpoint_is_isoc_in - check if the endpoint is isochronous IN
567 * @epd: endpoint to be checked
568 *
569 * Returns true if the endpoint has isochronous transfer type and IN direction,
570 * otherwise it returns false.
571 */
572static inline int usb_endpoint_is_isoc_in(
573 const struct usb_endpoint_descriptor *epd)
574{
575 return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd);
576}
577
578/**
579 * usb_endpoint_is_isoc_out - check if the endpoint is isochronous OUT
580 * @epd: endpoint to be checked
581 *
582 * Returns true if the endpoint has isochronous transfer type and OUT direction,
583 * otherwise it returns false.
584 */
585static inline int usb_endpoint_is_isoc_out(
586 const struct usb_endpoint_descriptor *epd)
587{
588 return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd);
589}
590
591/**
592 * usb_endpoint_maxp - get endpoint's max packet size
593 * @epd: endpoint to be checked
594 *
595 * Returns @epd's max packet
596 */
597static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd)
598{
599 return __le16_to_cpu(epd->wMaxPacketSize);
600}
601
602static inline int usb_endpoint_interrupt_type(
603 const struct usb_endpoint_descriptor *epd)
604{
605 return epd->bmAttributes & USB_ENDPOINT_INTRTYPE;
606}
607
608/*-------------------------------------------------------------------------*/
609
610/* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */
611struct usb_ss_ep_comp_descriptor {
612 __u8 bLength;
613 __u8 bDescriptorType;
614
615 __u8 bMaxBurst;
616 __u8 bmAttributes;
617 __le16 wBytesPerInterval;
618} __attribute__ ((packed));
619
620#define USB_DT_SS_EP_COMP_SIZE 6
621
622/* Bits 4:0 of bmAttributes if this is a bulk endpoint */
623static inline int
624usb_ss_max_streams(const struct usb_ss_ep_comp_descriptor *comp)
625{
626 int max_streams;
627
628 if (!comp)
629 return 0;
630
631 max_streams = comp->bmAttributes & 0x1f;
632
633 if (!max_streams)
634 return 0;
635
636 max_streams = 1 << max_streams;
637
638 return max_streams;
639}
640
641/* Bits 1:0 of bmAttributes if this is an isoc endpoint */
642#define USB_SS_MULT(p) (1 + ((p) & 0x3))
643
644/*-------------------------------------------------------------------------*/
645
646/* USB_DT_DEVICE_QUALIFIER: Device Qualifier descriptor */
647struct usb_qualifier_descriptor {
648 __u8 bLength;
649 __u8 bDescriptorType;
650
651 __le16 bcdUSB;
652 __u8 bDeviceClass;
653 __u8 bDeviceSubClass;
654 __u8 bDeviceProtocol;
655 __u8 bMaxPacketSize0;
656 __u8 bNumConfigurations;
657 __u8 bRESERVED;
658} __attribute__ ((packed));
659
660
661/*-------------------------------------------------------------------------*/
662
663/* USB_DT_OTG (from OTG 1.0a supplement) */
664struct usb_otg_descriptor {
665 __u8 bLength;
666 __u8 bDescriptorType;
667
668 __u8 bmAttributes; /* support for HNP, SRP, etc */
669} __attribute__ ((packed));
670
671/* from usb_otg_descriptor.bmAttributes */
672#define USB_OTG_SRP (1 << 0)
673#define USB_OTG_HNP (1 << 1) /* swap host/device roles */
674
675/*-------------------------------------------------------------------------*/
676
677/* USB_DT_DEBUG: for special highspeed devices, replacing serial console */
678struct usb_debug_descriptor {
679 __u8 bLength;
680 __u8 bDescriptorType;
681
682 /* bulk endpoints with 8 byte maxpacket */
683 __u8 bDebugInEndpoint;
684 __u8 bDebugOutEndpoint;
685} __attribute__((packed));
686
687/*-------------------------------------------------------------------------*/
688
689/* USB_DT_INTERFACE_ASSOCIATION: groups interfaces */
690struct usb_interface_assoc_descriptor {
691 __u8 bLength;
692 __u8 bDescriptorType;
693
694 __u8 bFirstInterface;
695 __u8 bInterfaceCount;
696 __u8 bFunctionClass;
697 __u8 bFunctionSubClass;
698 __u8 bFunctionProtocol;
699 __u8 iFunction;
700} __attribute__ ((packed));
701
702
703/*-------------------------------------------------------------------------*/
704
705/* USB_DT_SECURITY: group of wireless security descriptors, including
706 * encryption types available for setting up a CC/association.
707 */
708struct usb_security_descriptor {
709 __u8 bLength;
710 __u8 bDescriptorType;
711
712 __le16 wTotalLength;
713 __u8 bNumEncryptionTypes;
714} __attribute__((packed));
715
716/*-------------------------------------------------------------------------*/
717
718/* USB_DT_KEY: used with {GET,SET}_SECURITY_DATA; only public keys
719 * may be retrieved.
720 */
721struct usb_key_descriptor {
722 __u8 bLength;
723 __u8 bDescriptorType;
724
725 __u8 tTKID[3];
726 __u8 bReserved;
727 __u8 bKeyData[0];
728} __attribute__((packed));
729
730/*-------------------------------------------------------------------------*/
731
732/* USB_DT_ENCRYPTION_TYPE: bundled in DT_SECURITY groups */
733struct usb_encryption_descriptor {
734 __u8 bLength;
735 __u8 bDescriptorType;
736
737 __u8 bEncryptionType;
738#define USB_ENC_TYPE_UNSECURE 0
739#define USB_ENC_TYPE_WIRED 1 /* non-wireless mode */
740#define USB_ENC_TYPE_CCM_1 2 /* aes128/cbc session */
741#define USB_ENC_TYPE_RSA_1 3 /* rsa3072/sha1 auth */
742 __u8 bEncryptionValue; /* use in SET_ENCRYPTION */
743 __u8 bAuthKeyIndex;
744} __attribute__((packed));
745
746
747/*-------------------------------------------------------------------------*/
748
749/* USB_DT_BOS: group of device-level capabilities */
750struct usb_bos_descriptor {
751 __u8 bLength;
752 __u8 bDescriptorType;
753
754 __le16 wTotalLength;
755 __u8 bNumDeviceCaps;
756} __attribute__((packed));
757
758#define USB_DT_BOS_SIZE 5
759/*-------------------------------------------------------------------------*/
760
761/* USB_DT_DEVICE_CAPABILITY: grouped with BOS */
762struct usb_dev_cap_header {
763 __u8 bLength;
764 __u8 bDescriptorType;
765 __u8 bDevCapabilityType;
766} __attribute__((packed));
767
768#define USB_CAP_TYPE_WIRELESS_USB 1
769
770struct usb_wireless_cap_descriptor { /* Ultra Wide Band */
771 __u8 bLength;
772 __u8 bDescriptorType;
773 __u8 bDevCapabilityType;
774
775 __u8 bmAttributes;
776#define USB_WIRELESS_P2P_DRD (1 << 1)
777#define USB_WIRELESS_BEACON_MASK (3 << 2)
778#define USB_WIRELESS_BEACON_SELF (1 << 2)
779#define USB_WIRELESS_BEACON_DIRECTED (2 << 2)
780#define USB_WIRELESS_BEACON_NONE (3 << 2)
781 __le16 wPHYRates; /* bit rates, Mbps */
782#define USB_WIRELESS_PHY_53 (1 << 0) /* always set */
783#define USB_WIRELESS_PHY_80 (1 << 1)
784#define USB_WIRELESS_PHY_107 (1 << 2) /* always set */
785#define USB_WIRELESS_PHY_160 (1 << 3)
786#define USB_WIRELESS_PHY_200 (1 << 4) /* always set */
787#define USB_WIRELESS_PHY_320 (1 << 5)
788#define USB_WIRELESS_PHY_400 (1 << 6)
789#define USB_WIRELESS_PHY_480 (1 << 7)
790 __u8 bmTFITXPowerInfo; /* TFI power levels */
791 __u8 bmFFITXPowerInfo; /* FFI power levels */
792 __le16 bmBandGroup;
793 __u8 bReserved;
794} __attribute__((packed));
795
796/* USB 2.0 Extension descriptor */
797#define USB_CAP_TYPE_EXT 2
798
799struct usb_ext_cap_descriptor { /* Link Power Management */
800 __u8 bLength;
801 __u8 bDescriptorType;
802 __u8 bDevCapabilityType;
803 __le32 bmAttributes;
804#define USB_LPM_SUPPORT (1 << 1) /* supports LPM */
805#define USB_BESL_SUPPORT (1 << 2) /* supports BESL */
806#define USB_BESL_BASELINE_VALID (1 << 3) /* Baseline BESL valid*/
807#define USB_BESL_DEEP_VALID (1 << 4) /* Deep BESL valid */
808#define USB_GET_BESL_BASELINE(p) (((p) & (0xf << 8)) >> 8)
809#define USB_GET_BESL_DEEP(p) (((p) & (0xf << 12)) >> 12)
810} __attribute__((packed));
811
812#define USB_DT_USB_EXT_CAP_SIZE 7
813
814/*
815 * SuperSpeed USB Capability descriptor: Defines the set of SuperSpeed USB
816 * specific device level capabilities
817 */
818#define USB_SS_CAP_TYPE 3
819struct usb_ss_cap_descriptor { /* Link Power Management */
820 __u8 bLength;
821 __u8 bDescriptorType;
822 __u8 bDevCapabilityType;
823 __u8 bmAttributes;
824#define USB_LTM_SUPPORT (1 << 1) /* supports LTM */
825 __le16 wSpeedSupported;
826#define USB_LOW_SPEED_OPERATION (1) /* Low speed operation */
827#define USB_FULL_SPEED_OPERATION (1 << 1) /* Full speed operation */
828#define USB_HIGH_SPEED_OPERATION (1 << 2) /* High speed operation */
829#define USB_5GBPS_OPERATION (1 << 3) /* Operation at 5Gbps */
830 __u8 bFunctionalitySupport;
831 __u8 bU1devExitLat;
832 __le16 bU2DevExitLat;
833} __attribute__((packed));
834
835#define USB_DT_USB_SS_CAP_SIZE 10
836
837/*
838 * Container ID Capability descriptor: Defines the instance unique ID used to
839 * identify the instance across all operating modes
840 */
841#define CONTAINER_ID_TYPE 4
842struct usb_ss_container_id_descriptor {
843 __u8 bLength;
844 __u8 bDescriptorType;
845 __u8 bDevCapabilityType;
846 __u8 bReserved;
847 __u8 ContainerID[16]; /* 128-bit number */
848} __attribute__((packed));
849
850#define USB_DT_USB_SS_CONTN_ID_SIZE 20
851/*-------------------------------------------------------------------------*/
852
853/* USB_DT_WIRELESS_ENDPOINT_COMP: companion descriptor associated with
854 * each endpoint descriptor for a wireless device
855 */
856struct usb_wireless_ep_comp_descriptor {
857 __u8 bLength;
858 __u8 bDescriptorType;
859
860 __u8 bMaxBurst;
861 __u8 bMaxSequence;
862 __le16 wMaxStreamDelay;
863 __le16 wOverTheAirPacketSize;
864 __u8 bOverTheAirInterval;
865 __u8 bmCompAttributes;
866#define USB_ENDPOINT_SWITCH_MASK 0x03 /* in bmCompAttributes */
867#define USB_ENDPOINT_SWITCH_NO 0
868#define USB_ENDPOINT_SWITCH_SWITCH 1
869#define USB_ENDPOINT_SWITCH_SCALE 2
870} __attribute__((packed));
871
872/*-------------------------------------------------------------------------*/
873
874/* USB_REQ_SET_HANDSHAKE is a four-way handshake used between a wireless
875 * host and a device for connection set up, mutual authentication, and
876 * exchanging short lived session keys. The handshake depends on a CC.
877 */
878struct usb_handshake {
879 __u8 bMessageNumber;
880 __u8 bStatus;
881 __u8 tTKID[3];
882 __u8 bReserved;
883 __u8 CDID[16];
884 __u8 nonce[16];
885 __u8 MIC[8];
886} __attribute__((packed));
887
888/*-------------------------------------------------------------------------*/
889
890/* USB_REQ_SET_CONNECTION modifies or revokes a connection context (CC).
891 * A CC may also be set up using non-wireless secure channels (including
892 * wired USB!), and some devices may support CCs with multiple hosts.
893 */
894struct usb_connection_context {
895 __u8 CHID[16]; /* persistent host id */
896 __u8 CDID[16]; /* device id (unique w/in host context) */
897 __u8 CK[16]; /* connection key */
898} __attribute__((packed));
899
900/*-------------------------------------------------------------------------*/
901 36
902/* USB 2.0 defines three speeds, here's how Linux identifies them */
903
904enum usb_device_speed {
905 USB_SPEED_UNKNOWN = 0, /* enumerating */
906 USB_SPEED_LOW, USB_SPEED_FULL, /* usb 1.1 */
907 USB_SPEED_HIGH, /* usb 2.0 */
908 USB_SPEED_WIRELESS, /* wireless (usb 2.5) */
909 USB_SPEED_SUPER, /* usb 3.0 */
910};
911
912#ifdef __KERNEL__
913 37
914/** 38/**
915 * usb_speed_string() - Returns human readable-name of the speed. 39 * usb_speed_string() - Returns human readable-name of the speed.
@@ -919,86 +43,4 @@ enum usb_device_speed {
919 */ 43 */
920extern const char *usb_speed_string(enum usb_device_speed speed); 44extern const char *usb_speed_string(enum usb_device_speed speed);
921 45
922#endif
923
924enum usb_device_state {
925 /* NOTATTACHED isn't in the USB spec, and this state acts
926 * the same as ATTACHED ... but it's clearer this way.
927 */
928 USB_STATE_NOTATTACHED = 0,
929
930 /* chapter 9 and authentication (wireless) device states */
931 USB_STATE_ATTACHED,
932 USB_STATE_POWERED, /* wired */
933 USB_STATE_RECONNECTING, /* auth */
934 USB_STATE_UNAUTHENTICATED, /* auth */
935 USB_STATE_DEFAULT, /* limited function */
936 USB_STATE_ADDRESS,
937 USB_STATE_CONFIGURED, /* most functions */
938
939 USB_STATE_SUSPENDED
940
941 /* NOTE: there are actually four different SUSPENDED
942 * states, returning to POWERED, DEFAULT, ADDRESS, or
943 * CONFIGURED respectively when SOF tokens flow again.
944 * At this level there's no difference between L1 and L2
945 * suspend states. (L2 being original USB 1.1 suspend.)
946 */
947};
948
949enum usb3_link_state {
950 USB3_LPM_U0 = 0,
951 USB3_LPM_U1,
952 USB3_LPM_U2,
953 USB3_LPM_U3
954};
955
956/*
957 * A U1 timeout of 0x0 means the parent hub will reject any transitions to U1.
958 * 0xff means the parent hub will accept transitions to U1, but will not
959 * initiate a transition.
960 *
961 * A U1 timeout of 0x1 to 0x7F also causes the hub to initiate a transition to
962 * U1 after that many microseconds. Timeouts of 0x80 to 0xFE are reserved
963 * values.
964 *
965 * A U2 timeout of 0x0 means the parent hub will reject any transitions to U2.
966 * 0xff means the parent hub will accept transitions to U2, but will not
967 * initiate a transition.
968 *
969 * A U2 timeout of 0x1 to 0xFE also causes the hub to initiate a transition to
970 * U2 after N*256 microseconds. Therefore a U2 timeout value of 0x1 means a U2
971 * idle timer of 256 microseconds, 0x2 means 512 microseconds, 0xFE means
972 * 65.024ms.
973 */
974#define USB3_LPM_DISABLED 0x0
975#define USB3_LPM_U1_MAX_TIMEOUT 0x7F
976#define USB3_LPM_U2_MAX_TIMEOUT 0xFE
977#define USB3_LPM_DEVICE_INITIATED 0xFF
978
979struct usb_set_sel_req {
980 __u8 u1_sel;
981 __u8 u1_pel;
982 __le16 u2_sel;
983 __le16 u2_pel;
984} __attribute__ ((packed));
985
986/*
987 * The Set System Exit Latency control transfer provides one byte each for
988 * U1 SEL and U1 PEL, so the max exit latency is 0xFF. U2 SEL and U2 PEL each
989 * are two bytes long.
990 */
991#define USB3_LPM_MAX_U1_SEL_PEL 0xFF
992#define USB3_LPM_MAX_U2_SEL_PEL 0xFFFF
993
994/*-------------------------------------------------------------------------*/
995
996/*
997 * As per USB compliance update, a device that is actively drawing
998 * more than 100mA from USB must report itself as bus-powered in
999 * the GetStatus(DEVICE) call.
1000 * http://compliance.usb.org/index.asp?UpdateFile=Electrical&Format=Standard#34
1001 */
1002#define USB_SELF_POWER_VBUS_MAX_DRAW 100
1003
1004#endif /* __LINUX_USB_CH9_H */ 46#endif /* __LINUX_USB_CH9_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-11-24 22:45:10 -0500