David Howells | 5e1ddb4 | 2012-10-09 09:49:07 +0100 | [diff] [blame] | 1 | /* |
| 2 | * This file holds USB constants and structures that are needed for |
| 3 | * USB device APIs. These are used by the USB device model, which is |
| 4 | * defined in chapter 9 of the USB 2.0 specification and in the |
| 5 | * Wireless USB 1.0 (spread around). Linux has several APIs in C that |
| 6 | * need these: |
| 7 | * |
| 8 | * - the master/host side Linux-USB kernel driver API; |
| 9 | * - the "usbfs" user space API; and |
| 10 | * - the Linux "gadget" slave/device/peripheral side driver API. |
| 11 | * |
| 12 | * USB 2.0 adds an additional "On The Go" (OTG) mode, which lets systems |
| 13 | * act either as a USB master/host or as a USB slave/device. That means |
| 14 | * the master and slave side APIs benefit from working well together. |
| 15 | * |
| 16 | * There's also "Wireless USB", using low power short range radios for |
| 17 | * peripheral interconnection but otherwise building on the USB framework. |
| 18 | * |
| 19 | * Note all descriptors are declared '__attribute__((packed))' so that: |
| 20 | * |
| 21 | * [a] they never get padded, either internally (USB spec writers |
| 22 | * probably handled that) or externally; |
| 23 | * |
| 24 | * [b] so that accessing bigger-than-a-bytes fields will never |
| 25 | * generate bus errors on any platform, even when the location of |
| 26 | * its descriptor inside a bundle isn't "naturally aligned", and |
| 27 | * |
| 28 | * [c] for consistency, removing all doubt even when it appears to |
| 29 | * someone that the two other points are non-issues for that |
| 30 | * particular descriptor type. |
| 31 | */ |
| 32 | |
| 33 | #ifndef _UAPI__LINUX_USB_CH9_H |
| 34 | #define _UAPI__LINUX_USB_CH9_H |
| 35 | |
| 36 | #include <linux/types.h> /* __u8 etc */ |
| 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 |
Huang Rui | 197c58f | 2013-04-08 12:20:49 +0800 | [diff] [blame] | 141 | * See USB 3.0 spec Table 9-7 |
David Howells | 5e1ddb4 | 2012-10-09 09:49:07 +0100 | [diff] [blame] | 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 | /* |
Huang Rui | 197c58f | 2013-04-08 12:20:49 +0800 | [diff] [blame] | 150 | * Suspend Options, Table 9-8 USB 3.0 spec |
David Howells | 5e1ddb4 | 2012-10-09 09:49:07 +0100 | [diff] [blame] | 151 | */ |
| 152 | #define USB_INTRF_FUNC_SUSPEND_LP (1 << (8 + 0)) |
| 153 | #define USB_INTRF_FUNC_SUSPEND_RW (1 << (8 + 1)) |
| 154 | |
Lan Tianyu | 54a3ac0 | 2013-01-24 10:31:28 +0800 | [diff] [blame] | 155 | /* |
| 156 | * Interface status, Figure 9-5 USB 3.0 spec |
| 157 | */ |
| 158 | #define USB_INTRF_STAT_FUNC_RW_CAP 1 |
| 159 | #define USB_INTRF_STAT_FUNC_RW 2 |
| 160 | |
David Howells | 5e1ddb4 | 2012-10-09 09:49:07 +0100 | [diff] [blame] | 161 | #define USB_ENDPOINT_HALT 0 /* IN/OUT will STALL */ |
| 162 | |
| 163 | /* Bit array elements as returned by the USB_REQ_GET_STATUS request. */ |
| 164 | #define USB_DEV_STAT_U1_ENABLED 2 /* transition into U1 state */ |
| 165 | #define USB_DEV_STAT_U2_ENABLED 3 /* transition into U2 state */ |
| 166 | #define USB_DEV_STAT_LTM_ENABLED 4 /* Latency tolerance messages */ |
| 167 | |
| 168 | /** |
| 169 | * struct usb_ctrlrequest - SETUP data for a USB device control request |
| 170 | * @bRequestType: matches the USB bmRequestType field |
| 171 | * @bRequest: matches the USB bRequest field |
| 172 | * @wValue: matches the USB wValue field (le16 byte order) |
| 173 | * @wIndex: matches the USB wIndex field (le16 byte order) |
| 174 | * @wLength: matches the USB wLength field (le16 byte order) |
| 175 | * |
| 176 | * This structure is used to send control requests to a USB device. It matches |
| 177 | * the different fields of the USB 2.0 Spec section 9.3, table 9-2. See the |
| 178 | * USB spec for a fuller description of the different fields, and what they are |
| 179 | * used for. |
| 180 | * |
| 181 | * Note that the driver for any interface can issue control requests. |
| 182 | * For most devices, interfaces don't coordinate with each other, so |
| 183 | * such requests may be made at any time. |
| 184 | */ |
| 185 | struct usb_ctrlrequest { |
| 186 | __u8 bRequestType; |
| 187 | __u8 bRequest; |
| 188 | __le16 wValue; |
| 189 | __le16 wIndex; |
| 190 | __le16 wLength; |
| 191 | } __attribute__ ((packed)); |
| 192 | |
| 193 | /*-------------------------------------------------------------------------*/ |
| 194 | |
| 195 | /* |
| 196 | * STANDARD DESCRIPTORS ... as returned by GET_DESCRIPTOR, or |
| 197 | * (rarely) accepted by SET_DESCRIPTOR. |
| 198 | * |
| 199 | * Note that all multi-byte values here are encoded in little endian |
| 200 | * byte order "on the wire". Within the kernel and when exposed |
| 201 | * through the Linux-USB APIs, they are not converted to cpu byte |
| 202 | * order; it is the responsibility of the client code to do this. |
| 203 | * The single exception is when device and configuration descriptors (but |
| 204 | * not other descriptors) are read from usbfs (i.e. /proc/bus/usb/BBB/DDD); |
| 205 | * in this case the fields are converted to host endianness by the kernel. |
| 206 | */ |
| 207 | |
| 208 | /* |
| 209 | * Descriptor types ... USB 2.0 spec table 9.5 |
| 210 | */ |
| 211 | #define USB_DT_DEVICE 0x01 |
| 212 | #define USB_DT_CONFIG 0x02 |
| 213 | #define USB_DT_STRING 0x03 |
| 214 | #define USB_DT_INTERFACE 0x04 |
| 215 | #define USB_DT_ENDPOINT 0x05 |
| 216 | #define USB_DT_DEVICE_QUALIFIER 0x06 |
| 217 | #define USB_DT_OTHER_SPEED_CONFIG 0x07 |
| 218 | #define USB_DT_INTERFACE_POWER 0x08 |
| 219 | /* these are from a minor usb 2.0 revision (ECN) */ |
| 220 | #define USB_DT_OTG 0x09 |
| 221 | #define USB_DT_DEBUG 0x0a |
| 222 | #define USB_DT_INTERFACE_ASSOCIATION 0x0b |
| 223 | /* these are from the Wireless USB spec */ |
| 224 | #define USB_DT_SECURITY 0x0c |
| 225 | #define USB_DT_KEY 0x0d |
| 226 | #define USB_DT_ENCRYPTION_TYPE 0x0e |
| 227 | #define USB_DT_BOS 0x0f |
| 228 | #define USB_DT_DEVICE_CAPABILITY 0x10 |
| 229 | #define USB_DT_WIRELESS_ENDPOINT_COMP 0x11 |
| 230 | #define USB_DT_WIRE_ADAPTER 0x21 |
| 231 | #define USB_DT_RPIPE 0x22 |
| 232 | #define USB_DT_CS_RADIO_CONTROL 0x23 |
| 233 | /* From the T10 UAS specification */ |
| 234 | #define USB_DT_PIPE_USAGE 0x24 |
| 235 | /* From the USB 3.0 spec */ |
| 236 | #define USB_DT_SS_ENDPOINT_COMP 0x30 |
Mathias Nyman | c8b1d89 | 2016-02-12 16:40:12 +0200 | [diff] [blame] | 237 | /* From the USB 3.1 spec */ |
| 238 | #define USB_DT_SSP_ISOC_ENDPOINT_COMP 0x31 |
David Howells | 5e1ddb4 | 2012-10-09 09:49:07 +0100 | [diff] [blame] | 239 | |
| 240 | /* Conventional codes for class-specific descriptors. The convention is |
| 241 | * defined in the USB "Common Class" Spec (3.11). Individual class specs |
| 242 | * are authoritative for their usage, not the "common class" writeup. |
| 243 | */ |
| 244 | #define USB_DT_CS_DEVICE (USB_TYPE_CLASS | USB_DT_DEVICE) |
| 245 | #define USB_DT_CS_CONFIG (USB_TYPE_CLASS | USB_DT_CONFIG) |
| 246 | #define USB_DT_CS_STRING (USB_TYPE_CLASS | USB_DT_STRING) |
| 247 | #define USB_DT_CS_INTERFACE (USB_TYPE_CLASS | USB_DT_INTERFACE) |
| 248 | #define USB_DT_CS_ENDPOINT (USB_TYPE_CLASS | USB_DT_ENDPOINT) |
| 249 | |
| 250 | /* All standard descriptors have these 2 fields at the beginning */ |
| 251 | struct usb_descriptor_header { |
| 252 | __u8 bLength; |
| 253 | __u8 bDescriptorType; |
| 254 | } __attribute__ ((packed)); |
| 255 | |
| 256 | |
| 257 | /*-------------------------------------------------------------------------*/ |
| 258 | |
| 259 | /* USB_DT_DEVICE: Device descriptor */ |
| 260 | struct usb_device_descriptor { |
| 261 | __u8 bLength; |
| 262 | __u8 bDescriptorType; |
| 263 | |
| 264 | __le16 bcdUSB; |
| 265 | __u8 bDeviceClass; |
| 266 | __u8 bDeviceSubClass; |
| 267 | __u8 bDeviceProtocol; |
| 268 | __u8 bMaxPacketSize0; |
| 269 | __le16 idVendor; |
| 270 | __le16 idProduct; |
| 271 | __le16 bcdDevice; |
| 272 | __u8 iManufacturer; |
| 273 | __u8 iProduct; |
| 274 | __u8 iSerialNumber; |
| 275 | __u8 bNumConfigurations; |
| 276 | } __attribute__ ((packed)); |
| 277 | |
| 278 | #define USB_DT_DEVICE_SIZE 18 |
| 279 | |
| 280 | |
| 281 | /* |
| 282 | * Device and/or Interface Class codes |
| 283 | * as found in bDeviceClass or bInterfaceClass |
| 284 | * and defined by www.usb.org documents |
| 285 | */ |
| 286 | #define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */ |
| 287 | #define USB_CLASS_AUDIO 1 |
| 288 | #define USB_CLASS_COMM 2 |
| 289 | #define USB_CLASS_HID 3 |
| 290 | #define USB_CLASS_PHYSICAL 5 |
| 291 | #define USB_CLASS_STILL_IMAGE 6 |
| 292 | #define USB_CLASS_PRINTER 7 |
| 293 | #define USB_CLASS_MASS_STORAGE 8 |
| 294 | #define USB_CLASS_HUB 9 |
| 295 | #define USB_CLASS_CDC_DATA 0x0a |
| 296 | #define USB_CLASS_CSCID 0x0b /* chip+ smart card */ |
| 297 | #define USB_CLASS_CONTENT_SEC 0x0d /* content security */ |
| 298 | #define USB_CLASS_VIDEO 0x0e |
| 299 | #define USB_CLASS_WIRELESS_CONTROLLER 0xe0 |
| 300 | #define USB_CLASS_MISC 0xef |
| 301 | #define USB_CLASS_APP_SPEC 0xfe |
| 302 | #define USB_CLASS_VENDOR_SPEC 0xff |
| 303 | |
| 304 | #define USB_SUBCLASS_VENDOR_SPEC 0xff |
| 305 | |
| 306 | /*-------------------------------------------------------------------------*/ |
| 307 | |
| 308 | /* USB_DT_CONFIG: Configuration descriptor information. |
| 309 | * |
| 310 | * USB_DT_OTHER_SPEED_CONFIG is the same descriptor, except that the |
| 311 | * descriptor type is different. Highspeed-capable devices can look |
| 312 | * different depending on what speed they're currently running. Only |
| 313 | * devices with a USB_DT_DEVICE_QUALIFIER have any OTHER_SPEED_CONFIG |
| 314 | * descriptors. |
| 315 | */ |
| 316 | struct usb_config_descriptor { |
| 317 | __u8 bLength; |
| 318 | __u8 bDescriptorType; |
| 319 | |
| 320 | __le16 wTotalLength; |
| 321 | __u8 bNumInterfaces; |
| 322 | __u8 bConfigurationValue; |
| 323 | __u8 iConfiguration; |
| 324 | __u8 bmAttributes; |
| 325 | __u8 bMaxPower; |
| 326 | } __attribute__ ((packed)); |
| 327 | |
| 328 | #define USB_DT_CONFIG_SIZE 9 |
| 329 | |
| 330 | /* from config descriptor bmAttributes */ |
| 331 | #define USB_CONFIG_ATT_ONE (1 << 7) /* must be set */ |
| 332 | #define USB_CONFIG_ATT_SELFPOWER (1 << 6) /* self powered */ |
| 333 | #define USB_CONFIG_ATT_WAKEUP (1 << 5) /* can wakeup */ |
| 334 | #define USB_CONFIG_ATT_BATTERY (1 << 4) /* battery powered */ |
| 335 | |
| 336 | /*-------------------------------------------------------------------------*/ |
| 337 | |
| 338 | /* USB_DT_STRING: String descriptor */ |
| 339 | struct usb_string_descriptor { |
| 340 | __u8 bLength; |
| 341 | __u8 bDescriptorType; |
| 342 | |
| 343 | __le16 wData[1]; /* UTF-16LE encoded */ |
| 344 | } __attribute__ ((packed)); |
| 345 | |
| 346 | /* note that "string" zero is special, it holds language codes that |
| 347 | * the device supports, not Unicode characters. |
| 348 | */ |
| 349 | |
| 350 | /*-------------------------------------------------------------------------*/ |
| 351 | |
| 352 | /* USB_DT_INTERFACE: Interface descriptor */ |
| 353 | struct usb_interface_descriptor { |
| 354 | __u8 bLength; |
| 355 | __u8 bDescriptorType; |
| 356 | |
| 357 | __u8 bInterfaceNumber; |
| 358 | __u8 bAlternateSetting; |
| 359 | __u8 bNumEndpoints; |
| 360 | __u8 bInterfaceClass; |
| 361 | __u8 bInterfaceSubClass; |
| 362 | __u8 bInterfaceProtocol; |
| 363 | __u8 iInterface; |
| 364 | } __attribute__ ((packed)); |
| 365 | |
| 366 | #define USB_DT_INTERFACE_SIZE 9 |
| 367 | |
| 368 | /*-------------------------------------------------------------------------*/ |
| 369 | |
| 370 | /* USB_DT_ENDPOINT: Endpoint descriptor */ |
| 371 | struct usb_endpoint_descriptor { |
| 372 | __u8 bLength; |
| 373 | __u8 bDescriptorType; |
| 374 | |
| 375 | __u8 bEndpointAddress; |
| 376 | __u8 bmAttributes; |
| 377 | __le16 wMaxPacketSize; |
| 378 | __u8 bInterval; |
| 379 | |
| 380 | /* NOTE: these two are _only_ in audio endpoints. */ |
| 381 | /* use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof. */ |
| 382 | __u8 bRefresh; |
| 383 | __u8 bSynchAddress; |
| 384 | } __attribute__ ((packed)); |
| 385 | |
| 386 | #define USB_DT_ENDPOINT_SIZE 7 |
| 387 | #define USB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */ |
| 388 | |
| 389 | |
| 390 | /* |
| 391 | * Endpoints |
| 392 | */ |
| 393 | #define USB_ENDPOINT_NUMBER_MASK 0x0f /* in bEndpointAddress */ |
| 394 | #define USB_ENDPOINT_DIR_MASK 0x80 |
| 395 | |
| 396 | #define USB_ENDPOINT_XFERTYPE_MASK 0x03 /* in bmAttributes */ |
| 397 | #define USB_ENDPOINT_XFER_CONTROL 0 |
| 398 | #define USB_ENDPOINT_XFER_ISOC 1 |
| 399 | #define USB_ENDPOINT_XFER_BULK 2 |
| 400 | #define USB_ENDPOINT_XFER_INT 3 |
| 401 | #define USB_ENDPOINT_MAX_ADJUSTABLE 0x80 |
| 402 | |
| 403 | /* The USB 3.0 spec redefines bits 5:4 of bmAttributes as interrupt ep type. */ |
| 404 | #define USB_ENDPOINT_INTRTYPE 0x30 |
| 405 | #define USB_ENDPOINT_INTR_PERIODIC (0 << 4) |
| 406 | #define USB_ENDPOINT_INTR_NOTIFICATION (1 << 4) |
| 407 | |
| 408 | #define USB_ENDPOINT_SYNCTYPE 0x0c |
| 409 | #define USB_ENDPOINT_SYNC_NONE (0 << 2) |
| 410 | #define USB_ENDPOINT_SYNC_ASYNC (1 << 2) |
| 411 | #define USB_ENDPOINT_SYNC_ADAPTIVE (2 << 2) |
| 412 | #define USB_ENDPOINT_SYNC_SYNC (3 << 2) |
| 413 | |
| 414 | #define USB_ENDPOINT_USAGE_MASK 0x30 |
| 415 | #define USB_ENDPOINT_USAGE_DATA 0x00 |
| 416 | #define USB_ENDPOINT_USAGE_FEEDBACK 0x10 |
| 417 | #define USB_ENDPOINT_USAGE_IMPLICIT_FB 0x20 /* Implicit feedback Data endpoint */ |
| 418 | |
| 419 | /*-------------------------------------------------------------------------*/ |
| 420 | |
| 421 | /** |
| 422 | * usb_endpoint_num - get the endpoint's number |
| 423 | * @epd: endpoint to be checked |
| 424 | * |
| 425 | * Returns @epd's number: 0 to 15. |
| 426 | */ |
| 427 | static inline int usb_endpoint_num(const struct usb_endpoint_descriptor *epd) |
| 428 | { |
| 429 | return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; |
| 430 | } |
| 431 | |
| 432 | /** |
| 433 | * usb_endpoint_type - get the endpoint's transfer type |
| 434 | * @epd: endpoint to be checked |
| 435 | * |
| 436 | * Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according |
| 437 | * to @epd's transfer type. |
| 438 | */ |
| 439 | static inline int usb_endpoint_type(const struct usb_endpoint_descriptor *epd) |
| 440 | { |
| 441 | return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; |
| 442 | } |
| 443 | |
| 444 | /** |
| 445 | * usb_endpoint_dir_in - check if the endpoint has IN direction |
| 446 | * @epd: endpoint to be checked |
| 447 | * |
| 448 | * Returns true if the endpoint is of type IN, otherwise it returns false. |
| 449 | */ |
| 450 | static inline int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd) |
| 451 | { |
| 452 | return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN); |
| 453 | } |
| 454 | |
| 455 | /** |
| 456 | * usb_endpoint_dir_out - check if the endpoint has OUT direction |
| 457 | * @epd: endpoint to be checked |
| 458 | * |
| 459 | * Returns true if the endpoint is of type OUT, otherwise it returns false. |
| 460 | */ |
| 461 | static inline int usb_endpoint_dir_out( |
| 462 | const struct usb_endpoint_descriptor *epd) |
| 463 | { |
| 464 | return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT); |
| 465 | } |
| 466 | |
| 467 | /** |
| 468 | * usb_endpoint_xfer_bulk - check if the endpoint has bulk transfer type |
| 469 | * @epd: endpoint to be checked |
| 470 | * |
| 471 | * Returns true if the endpoint is of type bulk, otherwise it returns false. |
| 472 | */ |
| 473 | static inline int usb_endpoint_xfer_bulk( |
| 474 | const struct usb_endpoint_descriptor *epd) |
| 475 | { |
| 476 | return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == |
| 477 | USB_ENDPOINT_XFER_BULK); |
| 478 | } |
| 479 | |
| 480 | /** |
| 481 | * usb_endpoint_xfer_control - check if the endpoint has control transfer type |
| 482 | * @epd: endpoint to be checked |
| 483 | * |
| 484 | * Returns true if the endpoint is of type control, otherwise it returns false. |
| 485 | */ |
| 486 | static inline int usb_endpoint_xfer_control( |
| 487 | const struct usb_endpoint_descriptor *epd) |
| 488 | { |
| 489 | return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == |
| 490 | USB_ENDPOINT_XFER_CONTROL); |
| 491 | } |
| 492 | |
| 493 | /** |
| 494 | * usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type |
| 495 | * @epd: endpoint to be checked |
| 496 | * |
| 497 | * Returns true if the endpoint is of type interrupt, otherwise it returns |
| 498 | * false. |
| 499 | */ |
| 500 | static inline int usb_endpoint_xfer_int( |
| 501 | const struct usb_endpoint_descriptor *epd) |
| 502 | { |
| 503 | return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == |
| 504 | USB_ENDPOINT_XFER_INT); |
| 505 | } |
| 506 | |
| 507 | /** |
| 508 | * usb_endpoint_xfer_isoc - check if the endpoint has isochronous transfer type |
| 509 | * @epd: endpoint to be checked |
| 510 | * |
| 511 | * Returns true if the endpoint is of type isochronous, otherwise it returns |
| 512 | * false. |
| 513 | */ |
| 514 | static inline int usb_endpoint_xfer_isoc( |
| 515 | const struct usb_endpoint_descriptor *epd) |
| 516 | { |
| 517 | return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == |
| 518 | USB_ENDPOINT_XFER_ISOC); |
| 519 | } |
| 520 | |
| 521 | /** |
| 522 | * usb_endpoint_is_bulk_in - check if the endpoint is bulk IN |
| 523 | * @epd: endpoint to be checked |
| 524 | * |
| 525 | * Returns true if the endpoint has bulk transfer type and IN direction, |
| 526 | * otherwise it returns false. |
| 527 | */ |
| 528 | static inline int usb_endpoint_is_bulk_in( |
| 529 | const struct usb_endpoint_descriptor *epd) |
| 530 | { |
| 531 | return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd); |
| 532 | } |
| 533 | |
| 534 | /** |
| 535 | * usb_endpoint_is_bulk_out - check if the endpoint is bulk OUT |
| 536 | * @epd: endpoint to be checked |
| 537 | * |
| 538 | * Returns true if the endpoint has bulk transfer type and OUT direction, |
| 539 | * otherwise it returns false. |
| 540 | */ |
| 541 | static inline int usb_endpoint_is_bulk_out( |
| 542 | const struct usb_endpoint_descriptor *epd) |
| 543 | { |
| 544 | return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd); |
| 545 | } |
| 546 | |
| 547 | /** |
| 548 | * usb_endpoint_is_int_in - check if the endpoint is interrupt IN |
| 549 | * @epd: endpoint to be checked |
| 550 | * |
| 551 | * Returns true if the endpoint has interrupt transfer type and IN direction, |
| 552 | * otherwise it returns false. |
| 553 | */ |
| 554 | static inline int usb_endpoint_is_int_in( |
| 555 | const struct usb_endpoint_descriptor *epd) |
| 556 | { |
| 557 | return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd); |
| 558 | } |
| 559 | |
| 560 | /** |
| 561 | * usb_endpoint_is_int_out - check if the endpoint is interrupt OUT |
| 562 | * @epd: endpoint to be checked |
| 563 | * |
| 564 | * Returns true if the endpoint has interrupt transfer type and OUT direction, |
| 565 | * otherwise it returns false. |
| 566 | */ |
| 567 | static inline int usb_endpoint_is_int_out( |
| 568 | const struct usb_endpoint_descriptor *epd) |
| 569 | { |
| 570 | return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd); |
| 571 | } |
| 572 | |
| 573 | /** |
| 574 | * usb_endpoint_is_isoc_in - check if the endpoint is isochronous IN |
| 575 | * @epd: endpoint to be checked |
| 576 | * |
| 577 | * Returns true if the endpoint has isochronous transfer type and IN direction, |
| 578 | * otherwise it returns false. |
| 579 | */ |
| 580 | static inline int usb_endpoint_is_isoc_in( |
| 581 | const struct usb_endpoint_descriptor *epd) |
| 582 | { |
| 583 | return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd); |
| 584 | } |
| 585 | |
| 586 | /** |
| 587 | * usb_endpoint_is_isoc_out - check if the endpoint is isochronous OUT |
| 588 | * @epd: endpoint to be checked |
| 589 | * |
| 590 | * Returns true if the endpoint has isochronous transfer type and OUT direction, |
| 591 | * otherwise it returns false. |
| 592 | */ |
| 593 | static inline int usb_endpoint_is_isoc_out( |
| 594 | const struct usb_endpoint_descriptor *epd) |
| 595 | { |
| 596 | return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd); |
| 597 | } |
| 598 | |
| 599 | /** |
| 600 | * usb_endpoint_maxp - get endpoint's max packet size |
| 601 | * @epd: endpoint to be checked |
| 602 | * |
| 603 | * Returns @epd's max packet |
| 604 | */ |
| 605 | static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd) |
| 606 | { |
| 607 | return __le16_to_cpu(epd->wMaxPacketSize); |
| 608 | } |
| 609 | |
| 610 | static inline int usb_endpoint_interrupt_type( |
| 611 | const struct usb_endpoint_descriptor *epd) |
| 612 | { |
| 613 | return epd->bmAttributes & USB_ENDPOINT_INTRTYPE; |
| 614 | } |
| 615 | |
| 616 | /*-------------------------------------------------------------------------*/ |
| 617 | |
Mathias Nyman | c8b1d89 | 2016-02-12 16:40:12 +0200 | [diff] [blame] | 618 | /* USB_DT_SSP_ISOC_ENDPOINT_COMP: SuperSpeedPlus Isochronous Endpoint Companion |
| 619 | * descriptor |
| 620 | */ |
| 621 | struct usb_ssp_isoc_ep_comp_descriptor { |
| 622 | __u8 bLength; |
| 623 | __u8 bDescriptorType; |
| 624 | __le16 wReseved; |
| 625 | __le32 dwBytesPerInterval; |
| 626 | } __attribute__ ((packed)); |
| 627 | |
| 628 | #define USB_DT_SSP_ISOC_EP_COMP_SIZE 8 |
| 629 | |
| 630 | /*-------------------------------------------------------------------------*/ |
| 631 | |
David Howells | 5e1ddb4 | 2012-10-09 09:49:07 +0100 | [diff] [blame] | 632 | /* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */ |
| 633 | struct usb_ss_ep_comp_descriptor { |
| 634 | __u8 bLength; |
| 635 | __u8 bDescriptorType; |
| 636 | |
| 637 | __u8 bMaxBurst; |
| 638 | __u8 bmAttributes; |
| 639 | __le16 wBytesPerInterval; |
| 640 | } __attribute__ ((packed)); |
| 641 | |
| 642 | #define USB_DT_SS_EP_COMP_SIZE 6 |
| 643 | |
| 644 | /* Bits 4:0 of bmAttributes if this is a bulk endpoint */ |
| 645 | static inline int |
| 646 | usb_ss_max_streams(const struct usb_ss_ep_comp_descriptor *comp) |
| 647 | { |
| 648 | int max_streams; |
| 649 | |
| 650 | if (!comp) |
| 651 | return 0; |
| 652 | |
| 653 | max_streams = comp->bmAttributes & 0x1f; |
| 654 | |
| 655 | if (!max_streams) |
| 656 | return 0; |
| 657 | |
| 658 | max_streams = 1 << max_streams; |
| 659 | |
| 660 | return max_streams; |
| 661 | } |
| 662 | |
| 663 | /* Bits 1:0 of bmAttributes if this is an isoc endpoint */ |
| 664 | #define USB_SS_MULT(p) (1 + ((p) & 0x3)) |
Mathias Nyman | c8b1d89 | 2016-02-12 16:40:12 +0200 | [diff] [blame] | 665 | /* Bit 7 of bmAttributes if a SSP isoc endpoint companion descriptor exists */ |
| 666 | #define USB_SS_SSP_ISOC_COMP(p) ((p) & (1 << 7)) |
David Howells | 5e1ddb4 | 2012-10-09 09:49:07 +0100 | [diff] [blame] | 667 | |
| 668 | /*-------------------------------------------------------------------------*/ |
| 669 | |
| 670 | /* USB_DT_DEVICE_QUALIFIER: Device Qualifier descriptor */ |
| 671 | struct usb_qualifier_descriptor { |
| 672 | __u8 bLength; |
| 673 | __u8 bDescriptorType; |
| 674 | |
| 675 | __le16 bcdUSB; |
| 676 | __u8 bDeviceClass; |
| 677 | __u8 bDeviceSubClass; |
| 678 | __u8 bDeviceProtocol; |
| 679 | __u8 bMaxPacketSize0; |
| 680 | __u8 bNumConfigurations; |
| 681 | __u8 bRESERVED; |
| 682 | } __attribute__ ((packed)); |
| 683 | |
| 684 | |
| 685 | /*-------------------------------------------------------------------------*/ |
| 686 | |
| 687 | /* USB_DT_OTG (from OTG 1.0a supplement) */ |
| 688 | struct usb_otg_descriptor { |
| 689 | __u8 bLength; |
| 690 | __u8 bDescriptorType; |
| 691 | |
| 692 | __u8 bmAttributes; /* support for HNP, SRP, etc */ |
| 693 | } __attribute__ ((packed)); |
| 694 | |
Macpaul Lin | 8486a0bb | 2015-07-09 15:18:38 +0800 | [diff] [blame] | 695 | /* USB_DT_OTG (from OTG 2.0 supplement) */ |
| 696 | struct usb_otg20_descriptor { |
| 697 | __u8 bLength; |
| 698 | __u8 bDescriptorType; |
| 699 | |
| 700 | __u8 bmAttributes; /* support for HNP, SRP and ADP, etc */ |
| 701 | __le16 bcdOTG; /* OTG and EH supplement release number |
| 702 | * in binary-coded decimal(i.e. 2.0 is 0200H) |
| 703 | */ |
| 704 | } __attribute__ ((packed)); |
| 705 | |
David Howells | 5e1ddb4 | 2012-10-09 09:49:07 +0100 | [diff] [blame] | 706 | /* from usb_otg_descriptor.bmAttributes */ |
| 707 | #define USB_OTG_SRP (1 << 0) |
| 708 | #define USB_OTG_HNP (1 << 1) /* swap host/device roles */ |
Macpaul Lin | 5d701ce | 2015-07-09 15:18:39 +0800 | [diff] [blame] | 709 | #define USB_OTG_ADP (1 << 2) /* support ADP */ |
David Howells | 5e1ddb4 | 2012-10-09 09:49:07 +0100 | [diff] [blame] | 710 | |
Li Jun | 346dbc6 | 2016-02-19 10:04:41 +0800 | [diff] [blame] | 711 | #define OTG_STS_SELECTOR 0xF000 /* OTG status selector */ |
David Howells | 5e1ddb4 | 2012-10-09 09:49:07 +0100 | [diff] [blame] | 712 | /*-------------------------------------------------------------------------*/ |
| 713 | |
| 714 | /* USB_DT_DEBUG: for special highspeed devices, replacing serial console */ |
| 715 | struct usb_debug_descriptor { |
| 716 | __u8 bLength; |
| 717 | __u8 bDescriptorType; |
| 718 | |
| 719 | /* bulk endpoints with 8 byte maxpacket */ |
| 720 | __u8 bDebugInEndpoint; |
| 721 | __u8 bDebugOutEndpoint; |
| 722 | } __attribute__((packed)); |
| 723 | |
| 724 | /*-------------------------------------------------------------------------*/ |
| 725 | |
| 726 | /* USB_DT_INTERFACE_ASSOCIATION: groups interfaces */ |
| 727 | struct usb_interface_assoc_descriptor { |
| 728 | __u8 bLength; |
| 729 | __u8 bDescriptorType; |
| 730 | |
| 731 | __u8 bFirstInterface; |
| 732 | __u8 bInterfaceCount; |
| 733 | __u8 bFunctionClass; |
| 734 | __u8 bFunctionSubClass; |
| 735 | __u8 bFunctionProtocol; |
| 736 | __u8 iFunction; |
| 737 | } __attribute__ ((packed)); |
| 738 | |
| 739 | |
| 740 | /*-------------------------------------------------------------------------*/ |
| 741 | |
| 742 | /* USB_DT_SECURITY: group of wireless security descriptors, including |
| 743 | * encryption types available for setting up a CC/association. |
| 744 | */ |
| 745 | struct usb_security_descriptor { |
| 746 | __u8 bLength; |
| 747 | __u8 bDescriptorType; |
| 748 | |
| 749 | __le16 wTotalLength; |
| 750 | __u8 bNumEncryptionTypes; |
| 751 | } __attribute__((packed)); |
| 752 | |
| 753 | /*-------------------------------------------------------------------------*/ |
| 754 | |
| 755 | /* USB_DT_KEY: used with {GET,SET}_SECURITY_DATA; only public keys |
| 756 | * may be retrieved. |
| 757 | */ |
| 758 | struct usb_key_descriptor { |
| 759 | __u8 bLength; |
| 760 | __u8 bDescriptorType; |
| 761 | |
| 762 | __u8 tTKID[3]; |
| 763 | __u8 bReserved; |
| 764 | __u8 bKeyData[0]; |
| 765 | } __attribute__((packed)); |
| 766 | |
| 767 | /*-------------------------------------------------------------------------*/ |
| 768 | |
| 769 | /* USB_DT_ENCRYPTION_TYPE: bundled in DT_SECURITY groups */ |
| 770 | struct usb_encryption_descriptor { |
| 771 | __u8 bLength; |
| 772 | __u8 bDescriptorType; |
| 773 | |
| 774 | __u8 bEncryptionType; |
| 775 | #define USB_ENC_TYPE_UNSECURE 0 |
| 776 | #define USB_ENC_TYPE_WIRED 1 /* non-wireless mode */ |
| 777 | #define USB_ENC_TYPE_CCM_1 2 /* aes128/cbc session */ |
| 778 | #define USB_ENC_TYPE_RSA_1 3 /* rsa3072/sha1 auth */ |
| 779 | __u8 bEncryptionValue; /* use in SET_ENCRYPTION */ |
| 780 | __u8 bAuthKeyIndex; |
| 781 | } __attribute__((packed)); |
| 782 | |
| 783 | |
| 784 | /*-------------------------------------------------------------------------*/ |
| 785 | |
| 786 | /* USB_DT_BOS: group of device-level capabilities */ |
| 787 | struct usb_bos_descriptor { |
| 788 | __u8 bLength; |
| 789 | __u8 bDescriptorType; |
| 790 | |
| 791 | __le16 wTotalLength; |
| 792 | __u8 bNumDeviceCaps; |
| 793 | } __attribute__((packed)); |
| 794 | |
| 795 | #define USB_DT_BOS_SIZE 5 |
| 796 | /*-------------------------------------------------------------------------*/ |
| 797 | |
| 798 | /* USB_DT_DEVICE_CAPABILITY: grouped with BOS */ |
| 799 | struct usb_dev_cap_header { |
| 800 | __u8 bLength; |
| 801 | __u8 bDescriptorType; |
| 802 | __u8 bDevCapabilityType; |
| 803 | } __attribute__((packed)); |
| 804 | |
| 805 | #define USB_CAP_TYPE_WIRELESS_USB 1 |
| 806 | |
| 807 | struct usb_wireless_cap_descriptor { /* Ultra Wide Band */ |
| 808 | __u8 bLength; |
| 809 | __u8 bDescriptorType; |
| 810 | __u8 bDevCapabilityType; |
| 811 | |
| 812 | __u8 bmAttributes; |
| 813 | #define USB_WIRELESS_P2P_DRD (1 << 1) |
| 814 | #define USB_WIRELESS_BEACON_MASK (3 << 2) |
| 815 | #define USB_WIRELESS_BEACON_SELF (1 << 2) |
| 816 | #define USB_WIRELESS_BEACON_DIRECTED (2 << 2) |
| 817 | #define USB_WIRELESS_BEACON_NONE (3 << 2) |
| 818 | __le16 wPHYRates; /* bit rates, Mbps */ |
| 819 | #define USB_WIRELESS_PHY_53 (1 << 0) /* always set */ |
| 820 | #define USB_WIRELESS_PHY_80 (1 << 1) |
| 821 | #define USB_WIRELESS_PHY_107 (1 << 2) /* always set */ |
| 822 | #define USB_WIRELESS_PHY_160 (1 << 3) |
| 823 | #define USB_WIRELESS_PHY_200 (1 << 4) /* always set */ |
| 824 | #define USB_WIRELESS_PHY_320 (1 << 5) |
| 825 | #define USB_WIRELESS_PHY_400 (1 << 6) |
| 826 | #define USB_WIRELESS_PHY_480 (1 << 7) |
| 827 | __u8 bmTFITXPowerInfo; /* TFI power levels */ |
| 828 | __u8 bmFFITXPowerInfo; /* FFI power levels */ |
| 829 | __le16 bmBandGroup; |
| 830 | __u8 bReserved; |
| 831 | } __attribute__((packed)); |
| 832 | |
| 833 | /* USB 2.0 Extension descriptor */ |
| 834 | #define USB_CAP_TYPE_EXT 2 |
| 835 | |
| 836 | struct usb_ext_cap_descriptor { /* Link Power Management */ |
| 837 | __u8 bLength; |
| 838 | __u8 bDescriptorType; |
| 839 | __u8 bDevCapabilityType; |
| 840 | __le32 bmAttributes; |
| 841 | #define USB_LPM_SUPPORT (1 << 1) /* supports LPM */ |
| 842 | #define USB_BESL_SUPPORT (1 << 2) /* supports BESL */ |
| 843 | #define USB_BESL_BASELINE_VALID (1 << 3) /* Baseline BESL valid*/ |
| 844 | #define USB_BESL_DEEP_VALID (1 << 4) /* Deep BESL valid */ |
| 845 | #define USB_GET_BESL_BASELINE(p) (((p) & (0xf << 8)) >> 8) |
| 846 | #define USB_GET_BESL_DEEP(p) (((p) & (0xf << 12)) >> 12) |
| 847 | } __attribute__((packed)); |
| 848 | |
| 849 | #define USB_DT_USB_EXT_CAP_SIZE 7 |
| 850 | |
| 851 | /* |
| 852 | * SuperSpeed USB Capability descriptor: Defines the set of SuperSpeed USB |
| 853 | * specific device level capabilities |
| 854 | */ |
| 855 | #define USB_SS_CAP_TYPE 3 |
| 856 | struct usb_ss_cap_descriptor { /* Link Power Management */ |
| 857 | __u8 bLength; |
| 858 | __u8 bDescriptorType; |
| 859 | __u8 bDevCapabilityType; |
| 860 | __u8 bmAttributes; |
| 861 | #define USB_LTM_SUPPORT (1 << 1) /* supports LTM */ |
| 862 | __le16 wSpeedSupported; |
| 863 | #define USB_LOW_SPEED_OPERATION (1) /* Low speed operation */ |
| 864 | #define USB_FULL_SPEED_OPERATION (1 << 1) /* Full speed operation */ |
| 865 | #define USB_HIGH_SPEED_OPERATION (1 << 2) /* High speed operation */ |
| 866 | #define USB_5GBPS_OPERATION (1 << 3) /* Operation at 5Gbps */ |
| 867 | __u8 bFunctionalitySupport; |
| 868 | __u8 bU1devExitLat; |
| 869 | __le16 bU2DevExitLat; |
| 870 | } __attribute__((packed)); |
| 871 | |
| 872 | #define USB_DT_USB_SS_CAP_SIZE 10 |
| 873 | |
| 874 | /* |
| 875 | * Container ID Capability descriptor: Defines the instance unique ID used to |
| 876 | * identify the instance across all operating modes |
| 877 | */ |
| 878 | #define CONTAINER_ID_TYPE 4 |
| 879 | struct usb_ss_container_id_descriptor { |
| 880 | __u8 bLength; |
| 881 | __u8 bDescriptorType; |
| 882 | __u8 bDevCapabilityType; |
| 883 | __u8 bReserved; |
| 884 | __u8 ContainerID[16]; /* 128-bit number */ |
| 885 | } __attribute__((packed)); |
| 886 | |
| 887 | #define USB_DT_USB_SS_CONTN_ID_SIZE 20 |
Mathias Nyman | 90ec924 | 2015-10-01 18:40:32 +0300 | [diff] [blame] | 888 | |
| 889 | /* |
| 890 | * SuperSpeed Plus USB Capability descriptor: Defines the set of |
| 891 | * SuperSpeed Plus USB specific device level capabilities |
| 892 | */ |
| 893 | #define USB_SSP_CAP_TYPE 0xa |
| 894 | struct usb_ssp_cap_descriptor { |
| 895 | __u8 bLength; |
| 896 | __u8 bDescriptorType; |
| 897 | __u8 bDevCapabilityType; |
| 898 | __u8 bReserved; |
| 899 | __le32 bmAttributes; |
| 900 | #define USB_SSP_SUBLINK_SPEED_ATTRIBS (0x1f << 0) /* sublink speed entries */ |
| 901 | #define USB_SSP_SUBLINK_SPEED_IDS (0xf << 5) /* speed ID entries */ |
John Youn | 743bc4b | 2016-03-28 16:12:21 -0700 | [diff] [blame] | 902 | __le16 wFunctionalitySupport; |
Mathias Nyman | 90ec924 | 2015-10-01 18:40:32 +0300 | [diff] [blame] | 903 | #define USB_SSP_MIN_SUBLINK_SPEED_ATTRIBUTE_ID (0xf) |
| 904 | #define USB_SSP_MIN_RX_LANE_COUNT (0xf << 8) |
| 905 | #define USB_SSP_MIN_TX_LANE_COUNT (0xf << 12) |
| 906 | __le16 wReserved; |
| 907 | __le32 bmSublinkSpeedAttr[1]; /* list of sublink speed attrib entries */ |
| 908 | #define USB_SSP_SUBLINK_SPEED_SSID (0xf) /* sublink speed ID */ |
| 909 | #define USB_SSP_SUBLINK_SPEED_LSE (0x3 << 4) /* Lanespeed exponent */ |
| 910 | #define USB_SSP_SUBLINK_SPEED_ST (0x3 << 6) /* Sublink type */ |
| 911 | #define USB_SSP_SUBLINK_SPEED_RSVD (0x3f << 8) /* Reserved */ |
| 912 | #define USB_SSP_SUBLINK_SPEED_LP (0x3 << 14) /* Link protocol */ |
| 913 | #define USB_SSP_SUBLINK_SPEED_LSM (0xff << 16) /* Lanespeed mantissa */ |
| 914 | } __attribute__((packed)); |
| 915 | |
Mathias Nyman | faee822 | 2016-02-12 16:40:14 +0200 | [diff] [blame] | 916 | /* |
| 917 | * Precision time measurement capability descriptor: advertised by devices and |
| 918 | * hubs that support PTM |
| 919 | */ |
| 920 | #define USB_PTM_CAP_TYPE 0xb |
| 921 | struct usb_ptm_cap_descriptor { |
| 922 | __u8 bLength; |
| 923 | __u8 bDescriptorType; |
| 924 | __u8 bDevCapabilityType; |
| 925 | } __attribute__((packed)); |
Mathias Nyman | 90ec924 | 2015-10-01 18:40:32 +0300 | [diff] [blame] | 926 | |
John Youn | 446fa3a | 2016-02-05 17:05:12 -0800 | [diff] [blame] | 927 | /* |
| 928 | * The size of the descriptor for the Sublink Speed Attribute Count |
| 929 | * (SSAC) specified in bmAttributes[4:0]. |
| 930 | */ |
| 931 | #define USB_DT_USB_SSP_CAP_SIZE(ssac) (16 + ssac * 4) |
| 932 | |
David Howells | 5e1ddb4 | 2012-10-09 09:49:07 +0100 | [diff] [blame] | 933 | /*-------------------------------------------------------------------------*/ |
| 934 | |
| 935 | /* USB_DT_WIRELESS_ENDPOINT_COMP: companion descriptor associated with |
| 936 | * each endpoint descriptor for a wireless device |
| 937 | */ |
| 938 | struct usb_wireless_ep_comp_descriptor { |
| 939 | __u8 bLength; |
| 940 | __u8 bDescriptorType; |
| 941 | |
| 942 | __u8 bMaxBurst; |
| 943 | __u8 bMaxSequence; |
| 944 | __le16 wMaxStreamDelay; |
| 945 | __le16 wOverTheAirPacketSize; |
| 946 | __u8 bOverTheAirInterval; |
| 947 | __u8 bmCompAttributes; |
| 948 | #define USB_ENDPOINT_SWITCH_MASK 0x03 /* in bmCompAttributes */ |
| 949 | #define USB_ENDPOINT_SWITCH_NO 0 |
| 950 | #define USB_ENDPOINT_SWITCH_SWITCH 1 |
| 951 | #define USB_ENDPOINT_SWITCH_SCALE 2 |
| 952 | } __attribute__((packed)); |
| 953 | |
| 954 | /*-------------------------------------------------------------------------*/ |
| 955 | |
| 956 | /* USB_REQ_SET_HANDSHAKE is a four-way handshake used between a wireless |
| 957 | * host and a device for connection set up, mutual authentication, and |
| 958 | * exchanging short lived session keys. The handshake depends on a CC. |
| 959 | */ |
| 960 | struct usb_handshake { |
| 961 | __u8 bMessageNumber; |
| 962 | __u8 bStatus; |
| 963 | __u8 tTKID[3]; |
| 964 | __u8 bReserved; |
| 965 | __u8 CDID[16]; |
| 966 | __u8 nonce[16]; |
| 967 | __u8 MIC[8]; |
| 968 | } __attribute__((packed)); |
| 969 | |
| 970 | /*-------------------------------------------------------------------------*/ |
| 971 | |
| 972 | /* USB_REQ_SET_CONNECTION modifies or revokes a connection context (CC). |
| 973 | * A CC may also be set up using non-wireless secure channels (including |
| 974 | * wired USB!), and some devices may support CCs with multiple hosts. |
| 975 | */ |
| 976 | struct usb_connection_context { |
| 977 | __u8 CHID[16]; /* persistent host id */ |
| 978 | __u8 CDID[16]; /* device id (unique w/in host context) */ |
| 979 | __u8 CK[16]; /* connection key */ |
| 980 | } __attribute__((packed)); |
| 981 | |
| 982 | /*-------------------------------------------------------------------------*/ |
| 983 | |
| 984 | /* USB 2.0 defines three speeds, here's how Linux identifies them */ |
| 985 | |
| 986 | enum usb_device_speed { |
| 987 | USB_SPEED_UNKNOWN = 0, /* enumerating */ |
| 988 | USB_SPEED_LOW, USB_SPEED_FULL, /* usb 1.1 */ |
| 989 | USB_SPEED_HIGH, /* usb 2.0 */ |
| 990 | USB_SPEED_WIRELESS, /* wireless (usb 2.5) */ |
| 991 | USB_SPEED_SUPER, /* usb 3.0 */ |
Mathias Nyman | 8a1b272 | 2015-12-10 09:59:25 +0200 | [diff] [blame] | 992 | USB_SPEED_SUPER_PLUS, /* usb 3.1 */ |
David Howells | 5e1ddb4 | 2012-10-09 09:49:07 +0100 | [diff] [blame] | 993 | }; |
| 994 | |
| 995 | |
| 996 | enum usb_device_state { |
| 997 | /* NOTATTACHED isn't in the USB spec, and this state acts |
| 998 | * the same as ATTACHED ... but it's clearer this way. |
| 999 | */ |
| 1000 | USB_STATE_NOTATTACHED = 0, |
| 1001 | |
| 1002 | /* chapter 9 and authentication (wireless) device states */ |
| 1003 | USB_STATE_ATTACHED, |
| 1004 | USB_STATE_POWERED, /* wired */ |
| 1005 | USB_STATE_RECONNECTING, /* auth */ |
| 1006 | USB_STATE_UNAUTHENTICATED, /* auth */ |
| 1007 | USB_STATE_DEFAULT, /* limited function */ |
| 1008 | USB_STATE_ADDRESS, |
| 1009 | USB_STATE_CONFIGURED, /* most functions */ |
| 1010 | |
| 1011 | USB_STATE_SUSPENDED |
| 1012 | |
| 1013 | /* NOTE: there are actually four different SUSPENDED |
| 1014 | * states, returning to POWERED, DEFAULT, ADDRESS, or |
| 1015 | * CONFIGURED respectively when SOF tokens flow again. |
| 1016 | * At this level there's no difference between L1 and L2 |
| 1017 | * suspend states. (L2 being original USB 1.1 suspend.) |
| 1018 | */ |
| 1019 | }; |
| 1020 | |
| 1021 | enum usb3_link_state { |
| 1022 | USB3_LPM_U0 = 0, |
| 1023 | USB3_LPM_U1, |
| 1024 | USB3_LPM_U2, |
| 1025 | USB3_LPM_U3 |
| 1026 | }; |
| 1027 | |
| 1028 | /* |
| 1029 | * A U1 timeout of 0x0 means the parent hub will reject any transitions to U1. |
| 1030 | * 0xff means the parent hub will accept transitions to U1, but will not |
| 1031 | * initiate a transition. |
| 1032 | * |
| 1033 | * A U1 timeout of 0x1 to 0x7F also causes the hub to initiate a transition to |
| 1034 | * U1 after that many microseconds. Timeouts of 0x80 to 0xFE are reserved |
| 1035 | * values. |
| 1036 | * |
| 1037 | * A U2 timeout of 0x0 means the parent hub will reject any transitions to U2. |
| 1038 | * 0xff means the parent hub will accept transitions to U2, but will not |
| 1039 | * initiate a transition. |
| 1040 | * |
| 1041 | * A U2 timeout of 0x1 to 0xFE also causes the hub to initiate a transition to |
| 1042 | * U2 after N*256 microseconds. Therefore a U2 timeout value of 0x1 means a U2 |
| 1043 | * idle timer of 256 microseconds, 0x2 means 512 microseconds, 0xFE means |
| 1044 | * 65.024ms. |
| 1045 | */ |
| 1046 | #define USB3_LPM_DISABLED 0x0 |
| 1047 | #define USB3_LPM_U1_MAX_TIMEOUT 0x7F |
| 1048 | #define USB3_LPM_U2_MAX_TIMEOUT 0xFE |
| 1049 | #define USB3_LPM_DEVICE_INITIATED 0xFF |
| 1050 | |
| 1051 | struct usb_set_sel_req { |
| 1052 | __u8 u1_sel; |
| 1053 | __u8 u1_pel; |
| 1054 | __le16 u2_sel; |
| 1055 | __le16 u2_pel; |
| 1056 | } __attribute__ ((packed)); |
| 1057 | |
| 1058 | /* |
| 1059 | * The Set System Exit Latency control transfer provides one byte each for |
| 1060 | * U1 SEL and U1 PEL, so the max exit latency is 0xFF. U2 SEL and U2 PEL each |
| 1061 | * are two bytes long. |
| 1062 | */ |
| 1063 | #define USB3_LPM_MAX_U1_SEL_PEL 0xFF |
| 1064 | #define USB3_LPM_MAX_U2_SEL_PEL 0xFFFF |
| 1065 | |
| 1066 | /*-------------------------------------------------------------------------*/ |
| 1067 | |
| 1068 | /* |
| 1069 | * As per USB compliance update, a device that is actively drawing |
| 1070 | * more than 100mA from USB must report itself as bus-powered in |
| 1071 | * the GetStatus(DEVICE) call. |
| 1072 | * http://compliance.usb.org/index.asp?UpdateFile=Electrical&Format=Standard#34 |
| 1073 | */ |
| 1074 | #define USB_SELF_POWER_VBUS_MAX_DRAW 100 |
| 1075 | |
| 1076 | #endif /* _UAPI__LINUX_USB_CH9_H */ |