ehci.h revision 198151
1270096Strasz/* $FreeBSD: head/sys/dev/usb/controller/ehci.h 198151 2009-10-15 20:07:08Z thompsa $ */ 2270096Strasz/*- 3270096Strasz * Copyright (c) 2001 The NetBSD Foundation, Inc. 4270096Strasz * All rights reserved. 5270096Strasz * 6270096Strasz * This code is derived from software contributed to The NetBSD Foundation 7270096Strasz * by Lennart Augustsson (lennart@augustsson.net). 8270096Strasz * 9270096Strasz * Redistribution and use in source and binary forms, with or without 10270096Strasz * modification, are permitted provided that the following conditions 11270096Strasz * are met: 12270096Strasz * 1. Redistributions of source code must retain the above copyright 13270096Strasz * notice, this list of conditions and the following disclaimer. 14270096Strasz * 2. Redistributions in binary form must reproduce the above copyright 15270096Strasz * notice, this list of conditions and the following disclaimer in the 16270096Strasz * documentation and/or other materials provided with the distribution. 17270096Strasz * 3. All advertising materials mentioning features or use of this software 18270096Strasz * must display the following acknowledgement: 19270096Strasz * This product includes software developed by the NetBSD 20270096Strasz * Foundation, Inc. and its contributors. 21270096Strasz * 4. Neither the name of The NetBSD Foundation nor the names of its 22270096Strasz * contributors may be used to endorse or promote products derived 23270096Strasz * from this software without specific prior written permission. 24270096Strasz * 25270096Strasz * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26270096Strasz * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27270096Strasz * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28270096Strasz * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29270096Strasz * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30270096Strasz * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31270096Strasz * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38#ifndef _EHCI_H_ 39#define _EHCI_H_ 40 41#define EHCI_MAX_DEVICES MIN(USB_MAX_DEVICES, 128) 42 43/* 44 * Alignment NOTE: structures must be aligned so that the hardware can index 45 * without performing addition. 46 */ 47#define EHCI_FRAMELIST_ALIGN 0x1000 /* bytes */ 48#define EHCI_FRAMELIST_COUNT 1024 /* units */ 49#define EHCI_VIRTUAL_FRAMELIST_COUNT 128 /* units */ 50 51#if ((8*EHCI_VIRTUAL_FRAMELIST_COUNT) < USB_MAX_HS_ISOC_FRAMES_PER_XFER) 52#error "maximum number of high-speed isochronous frames is higher than supported!" 53#endif 54 55#if (EHCI_VIRTUAL_FRAMELIST_COUNT < USB_MAX_FS_ISOC_FRAMES_PER_XFER) 56#error "maximum number of full-speed isochronous frames is higher than supported!" 57#endif 58 59/* Link types */ 60#define EHCI_LINK_TERMINATE 0x00000001 61#define EHCI_LINK_TYPE(x) ((x) & 0x00000006) 62#define EHCI_LINK_ITD 0x0 63#define EHCI_LINK_QH 0x2 64#define EHCI_LINK_SITD 0x4 65#define EHCI_LINK_FSTN 0x6 66#define EHCI_LINK_ADDR(x) ((x) &~ 0x1f) 67 68/* Structures alignment (bytes) */ 69#define EHCI_ITD_ALIGN 128 70#define EHCI_SITD_ALIGN 64 71#define EHCI_QTD_ALIGN 64 72#define EHCI_QH_ALIGN 128 73#define EHCI_FSTN_ALIGN 32 74/* Data buffers are divided into one or more pages */ 75#define EHCI_PAGE_SIZE 0x1000 76#if ((USB_PAGE_SIZE < EHCI_PAGE_SIZE) || (EHCI_PAGE_SIZE == 0) || \ 77 (USB_PAGE_SIZE < EHCI_ITD_ALIGN) || (EHCI_ITD_ALIGN == 0) || \ 78 (USB_PAGE_SIZE < EHCI_SITD_ALIGN) || (EHCI_SITD_ALIGN == 0) || \ 79 (USB_PAGE_SIZE < EHCI_QTD_ALIGN) || (EHCI_QTD_ALIGN == 0) || \ 80 (USB_PAGE_SIZE < EHCI_QH_ALIGN) || (EHCI_QH_ALIGN == 0) || \ 81 (USB_PAGE_SIZE < EHCI_FSTN_ALIGN) || (EHCI_FSTN_ALIGN == 0)) 82#error "Invalid USB page size!" 83#endif 84 85 86/* 87 * Isochronous Transfer Descriptor. This descriptor is used for high speed 88 * transfers only. 89 */ 90struct ehci_itd { 91 volatile uint32_t itd_next; 92 volatile uint32_t itd_status[8]; 93#define EHCI_ITD_SET_LEN(x) ((x) << 16) 94#define EHCI_ITD_GET_LEN(x) (((x) >> 16) & 0xFFF) 95#define EHCI_ITD_IOC (1 << 15) 96#define EHCI_ITD_SET_PG(x) ((x) << 12) 97#define EHCI_ITD_GET_PG(x) (((x) >> 12) & 0x7) 98#define EHCI_ITD_SET_OFFS(x) (x) 99#define EHCI_ITD_GET_OFFS(x) (((x) >> 0) & 0xFFF) 100#define EHCI_ITD_ACTIVE (1 << 31) 101#define EHCI_ITD_DATABUFERR (1 << 30) 102#define EHCI_ITD_BABBLE (1 << 29) 103#define EHCI_ITD_XACTERR (1 << 28) 104 volatile uint32_t itd_bp[7]; 105 /* itd_bp[0] */ 106#define EHCI_ITD_SET_ADDR(x) (x) 107#define EHCI_ITD_GET_ADDR(x) (((x) >> 0) & 0x7F) 108#define EHCI_ITD_SET_ENDPT(x) ((x) << 8) 109#define EHCI_ITD_GET_ENDPT(x) (((x) >> 8) & 0xF) 110 /* itd_bp[1] */ 111#define EHCI_ITD_SET_DIR_IN (1 << 11) 112#define EHCI_ITD_SET_DIR_OUT (0 << 11) 113#define EHCI_ITD_SET_MPL(x) (x) 114#define EHCI_ITD_GET_MPL(x) (((x) >> 0) & 0x7FF) 115 volatile uint32_t itd_bp_hi[7]; 116/* 117 * Extra information needed: 118 */ 119 uint32_t itd_self; 120 struct ehci_itd *next; 121 struct ehci_itd *prev; 122 struct ehci_itd *obj_next; 123 struct usb_page_cache *page_cache; 124} __aligned(EHCI_ITD_ALIGN); 125 126typedef struct ehci_itd ehci_itd_t; 127 128/* 129 * Split Transaction Isochronous Transfer Descriptor. This descriptor is used 130 * for full speed transfers only. 131 */ 132struct ehci_sitd { 133 volatile uint32_t sitd_next; 134 volatile uint32_t sitd_portaddr; 135#define EHCI_SITD_SET_DIR_OUT (0 << 31) 136#define EHCI_SITD_SET_DIR_IN (1 << 31) 137#define EHCI_SITD_SET_ADDR(x) (x) 138#define EHCI_SITD_GET_ADDR(x) ((x) & 0x7F) 139#define EHCI_SITD_SET_ENDPT(x) ((x) << 8) 140#define EHCI_SITD_GET_ENDPT(x) (((x) >> 8) & 0xF) 141#define EHCI_SITD_GET_DIR(x) ((x) >> 31) 142#define EHCI_SITD_SET_PORT(x) ((x) << 24) 143#define EHCI_SITD_GET_PORT(x) (((x) >> 24) & 0x7F) 144#define EHCI_SITD_SET_HUBA(x) ((x) << 16) 145#define EHCI_SITD_GET_HUBA(x) (((x) >> 16) & 0x7F) 146 volatile uint32_t sitd_mask; 147#define EHCI_SITD_SET_SMASK(x) (x) 148#define EHCI_SITD_SET_CMASK(x) ((x) << 8) 149 volatile uint32_t sitd_status; 150#define EHCI_SITD_COMPLETE_SPLIT (1<<1) 151#define EHCI_SITD_START_SPLIT (0<<1) 152#define EHCI_SITD_MISSED_MICRO_FRAME (1<<2) 153#define EHCI_SITD_XACTERR (1<<3) 154#define EHCI_SITD_BABBLE (1<<4) 155#define EHCI_SITD_DATABUFERR (1<<5) 156#define EHCI_SITD_ERROR (1<<6) 157#define EHCI_SITD_ACTIVE (1<<7) 158#define EHCI_SITD_IOC (1<<31) 159#define EHCI_SITD_SET_LEN(len) ((len)<<16) 160#define EHCI_SITD_GET_LEN(x) (((x)>>16) & 0x3FF) 161 volatile uint32_t sitd_bp[2]; 162 volatile uint32_t sitd_back; 163 volatile uint32_t sitd_bp_hi[2]; 164/* 165 * Extra information needed: 166 */ 167 uint32_t sitd_self; 168 struct ehci_sitd *next; 169 struct ehci_sitd *prev; 170 struct ehci_sitd *obj_next; 171 struct usb_page_cache *page_cache; 172} __aligned(EHCI_SITD_ALIGN); 173 174typedef struct ehci_sitd ehci_sitd_t; 175 176/* Queue Element Transfer Descriptor */ 177struct ehci_qtd { 178 volatile uint32_t qtd_next; 179 volatile uint32_t qtd_altnext; 180 volatile uint32_t qtd_status; 181#define EHCI_QTD_GET_STATUS(x) (((x) >> 0) & 0xff) 182#define EHCI_QTD_SET_STATUS(x) ((x) << 0) 183#define EHCI_QTD_ACTIVE 0x80 184#define EHCI_QTD_HALTED 0x40 185#define EHCI_QTD_BUFERR 0x20 186#define EHCI_QTD_BABBLE 0x10 187#define EHCI_QTD_XACTERR 0x08 188#define EHCI_QTD_MISSEDMICRO 0x04 189#define EHCI_QTD_SPLITXSTATE 0x02 190#define EHCI_QTD_PINGSTATE 0x01 191#define EHCI_QTD_STATERRS 0x74 192#define EHCI_QTD_GET_PID(x) (((x) >> 8) & 0x3) 193#define EHCI_QTD_SET_PID(x) ((x) << 8) 194#define EHCI_QTD_PID_OUT 0x0 195#define EHCI_QTD_PID_IN 0x1 196#define EHCI_QTD_PID_SETUP 0x2 197#define EHCI_QTD_GET_CERR(x) (((x) >> 10) & 0x3) 198#define EHCI_QTD_SET_CERR(x) ((x) << 10) 199#define EHCI_QTD_GET_C_PAGE(x) (((x) >> 12) & 0x7) 200#define EHCI_QTD_SET_C_PAGE(x) ((x) << 12) 201#define EHCI_QTD_GET_IOC(x) (((x) >> 15) & 0x1) 202#define EHCI_QTD_IOC 0x00008000 203#define EHCI_QTD_GET_BYTES(x) (((x) >> 16) & 0x7fff) 204#define EHCI_QTD_SET_BYTES(x) ((x) << 16) 205#define EHCI_QTD_GET_TOGGLE(x) (((x) >> 31) & 0x1) 206#define EHCI_QTD_SET_TOGGLE(x) ((x) << 31) 207#define EHCI_QTD_TOGGLE_MASK 0x80000000 208#define EHCI_QTD_NBUFFERS 5 209#define EHCI_QTD_PAYLOAD_MAX ((EHCI_QTD_NBUFFERS-1)*EHCI_PAGE_SIZE) 210 volatile uint32_t qtd_buffer[EHCI_QTD_NBUFFERS]; 211 volatile uint32_t qtd_buffer_hi[EHCI_QTD_NBUFFERS]; 212/* 213 * Extra information needed: 214 */ 215 struct ehci_qtd *alt_next; 216 struct ehci_qtd *obj_next; 217 struct usb_page_cache *page_cache; 218 uint32_t qtd_self; 219 uint16_t len; 220} __aligned(EHCI_QTD_ALIGN); 221 222typedef struct ehci_qtd ehci_qtd_t; 223 224/* Queue Head Sub Structure */ 225struct ehci_qh_sub { 226 volatile uint32_t qtd_next; 227 volatile uint32_t qtd_altnext; 228 volatile uint32_t qtd_status; 229 volatile uint32_t qtd_buffer[EHCI_QTD_NBUFFERS]; 230 volatile uint32_t qtd_buffer_hi[EHCI_QTD_NBUFFERS]; 231} __aligned(4); 232 233/* Queue Head */ 234struct ehci_qh { 235 volatile uint32_t qh_link; 236 volatile uint32_t qh_endp; 237#define EHCI_QH_GET_ADDR(x) (((x) >> 0) & 0x7f) /* endpoint addr */ 238#define EHCI_QH_SET_ADDR(x) (x) 239#define EHCI_QH_ADDRMASK 0x0000007f 240#define EHCI_QH_GET_INACT(x) (((x) >> 7) & 0x01) /* inactivate on next */ 241#define EHCI_QH_INACT 0x00000080 242#define EHCI_QH_GET_ENDPT(x) (((x) >> 8) & 0x0f) /* endpoint no */ 243#define EHCI_QH_SET_ENDPT(x) ((x) << 8) 244#define EHCI_QH_GET_EPS(x) (((x) >> 12) & 0x03) /* endpoint speed */ 245#define EHCI_QH_SET_EPS(x) ((x) << 12) 246#define EHCI_QH_SPEED_FULL 0x0 247#define EHCI_QH_SPEED_LOW 0x1 248#define EHCI_QH_SPEED_HIGH 0x2 249#define EHCI_QH_GET_DTC(x) (((x) >> 14) & 0x01) /* data toggle control */ 250#define EHCI_QH_DTC 0x00004000 251#define EHCI_QH_GET_HRECL(x) (((x) >> 15) & 0x01) /* head of reclamation */ 252#define EHCI_QH_HRECL 0x00008000 253#define EHCI_QH_GET_MPL(x) (((x) >> 16) & 0x7ff) /* max packet len */ 254#define EHCI_QH_SET_MPL(x) ((x) << 16) 255#define EHCI_QH_MPLMASK 0x07ff0000 256#define EHCI_QH_GET_CTL(x) (((x) >> 27) & 0x01) /* control endpoint */ 257#define EHCI_QH_CTL 0x08000000 258#define EHCI_QH_GET_NRL(x) (((x) >> 28) & 0x0f) /* NAK reload */ 259#define EHCI_QH_SET_NRL(x) ((x) << 28) 260 volatile uint32_t qh_endphub; 261#define EHCI_QH_GET_SMASK(x) (((x) >> 0) & 0xff) /* intr sched mask */ 262#define EHCI_QH_SET_SMASK(x) ((x) << 0) 263#define EHCI_QH_GET_CMASK(x) (((x) >> 8) & 0xff) /* split completion mask */ 264#define EHCI_QH_SET_CMASK(x) ((x) << 8) 265#define EHCI_QH_GET_HUBA(x) (((x) >> 16) & 0x7f) /* hub address */ 266#define EHCI_QH_SET_HUBA(x) ((x) << 16) 267#define EHCI_QH_GET_PORT(x) (((x) >> 23) & 0x7f) /* hub port */ 268#define EHCI_QH_SET_PORT(x) ((x) << 23) 269#define EHCI_QH_GET_MULT(x) (((x) >> 30) & 0x03) /* pipe multiplier */ 270#define EHCI_QH_SET_MULT(x) ((x) << 30) 271 volatile uint32_t qh_curqtd; 272 struct ehci_qh_sub qh_qtd; 273/* 274 * Extra information needed: 275 */ 276 struct ehci_qh *next; 277 struct ehci_qh *prev; 278 struct ehci_qh *obj_next; 279 struct usb_page_cache *page_cache; 280 uint32_t qh_self; 281} __aligned(EHCI_QH_ALIGN); 282 283typedef struct ehci_qh ehci_qh_t; 284 285/* Periodic Frame Span Traversal Node */ 286struct ehci_fstn { 287 volatile uint32_t fstn_link; 288 volatile uint32_t fstn_back; 289} __aligned(EHCI_FSTN_ALIGN); 290 291typedef struct ehci_fstn ehci_fstn_t; 292 293struct ehci_hw_softc { 294 struct usb_page_cache pframes_pc; 295 struct usb_page_cache async_start_pc; 296 struct usb_page_cache intr_start_pc[EHCI_VIRTUAL_FRAMELIST_COUNT]; 297 struct usb_page_cache isoc_hs_start_pc[EHCI_VIRTUAL_FRAMELIST_COUNT]; 298 struct usb_page_cache isoc_fs_start_pc[EHCI_VIRTUAL_FRAMELIST_COUNT]; 299 300 struct usb_page pframes_pg; 301 struct usb_page async_start_pg; 302 struct usb_page intr_start_pg[EHCI_VIRTUAL_FRAMELIST_COUNT]; 303 struct usb_page isoc_hs_start_pg[EHCI_VIRTUAL_FRAMELIST_COUNT]; 304 struct usb_page isoc_fs_start_pg[EHCI_VIRTUAL_FRAMELIST_COUNT]; 305}; 306 307struct ehci_config_desc { 308 struct usb_config_descriptor confd; 309 struct usb_interface_descriptor ifcd; 310 struct usb_endpoint_descriptor endpd; 311} __packed; 312 313union ehci_hub_desc { 314 struct usb_status stat; 315 struct usb_port_status ps; 316 struct usb_hub_descriptor hubd; 317 uint8_t temp[128]; 318}; 319 320typedef struct ehci_softc { 321 struct ehci_hw_softc sc_hw; 322 struct usb_bus sc_bus; /* base device */ 323 struct usb_callout sc_tmo_pcd; 324 union ehci_hub_desc sc_hub_desc; 325 326 struct usb_device *sc_devices[EHCI_MAX_DEVICES]; 327 struct resource *sc_io_res; 328 struct resource *sc_irq_res; 329 struct ehci_qh *sc_async_p_last; 330 struct ehci_qh *sc_intr_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT]; 331 struct ehci_sitd *sc_isoc_fs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT]; 332 struct ehci_itd *sc_isoc_hs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT]; 333 void *sc_intr_hdl; 334 bus_size_t sc_io_size; 335 bus_space_tag_t sc_io_tag; 336 bus_space_handle_t sc_io_hdl; 337 338 uint32_t sc_eintrs; 339 uint32_t sc_cmd; /* shadow of cmd register during 340 * suspend */ 341 342 uint16_t sc_intr_stat[EHCI_VIRTUAL_FRAMELIST_COUNT]; 343 uint16_t sc_id_vendor; /* vendor ID for root hub */ 344 uint16_t sc_flags; /* chip specific flags */ 345#define EHCI_SCFLG_SETMODE 0x0001 /* set bridge mode again after init */ 346#define EHCI_SCFLG_FORCESPEED 0x0002 /* force speed */ 347#define EHCI_SCFLG_NORESTERM 0x0004 /* don't terminate reset sequence */ 348#define EHCI_SCFLG_BIGEDESC 0x0008 /* big-endian byte order descriptors */ 349#define EHCI_SCFLG_BIGEMMIO 0x0010 /* big-endian byte order MMIO */ 350#define EHCI_SCFLG_TT 0x0020 /* transaction translator present */ 351 352 uint8_t sc_offs; /* offset to operational registers */ 353 uint8_t sc_doorbell_disable; /* set on doorbell failure */ 354 uint8_t sc_noport; 355 uint8_t sc_addr; /* device address */ 356 uint8_t sc_conf; /* device configuration */ 357 uint8_t sc_isreset; 358 uint8_t sc_hub_idata[8]; 359 360 char sc_vendor[16]; /* vendor string for root hub */ 361 362} ehci_softc_t; 363 364#define EREAD1(sc, a) bus_space_read_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (a)) 365#define EREAD2(sc, a) bus_space_read_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (a)) 366#define EREAD4(sc, a) bus_space_read_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (a)) 367#define EWRITE1(sc, a, x) \ 368 bus_space_write_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (a), (x)) 369#define EWRITE2(sc, a, x) \ 370 bus_space_write_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (a), (x)) 371#define EWRITE4(sc, a, x) \ 372 bus_space_write_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (a), (x)) 373#define EOREAD1(sc, a) \ 374 bus_space_read_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a)) 375#define EOREAD2(sc, a) \ 376 bus_space_read_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a)) 377#define EOREAD4(sc, a) \ 378 bus_space_read_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a)) 379#define EOWRITE1(sc, a, x) \ 380 bus_space_write_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a), (x)) 381#define EOWRITE2(sc, a, x) \ 382 bus_space_write_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a), (x)) 383#define EOWRITE4(sc, a, x) \ 384 bus_space_write_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a), (x)) 385 386#ifdef USB_EHCI_BIG_ENDIAN_DESC 387/* 388 * Handle byte order conversion between host and ``host controller''. 389 * Typically the latter is little-endian but some controllers require 390 * big-endian in which case we may need to manually swap. 391 */ 392static __inline uint32_t 393htohc32(const struct ehci_softc *sc, const uint32_t v) 394{ 395 return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? htobe32(v) : htole32(v); 396} 397 398static __inline uint16_t 399htohc16(const struct ehci_softc *sc, const uint16_t v) 400{ 401 return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? htobe16(v) : htole16(v); 402} 403 404static __inline uint32_t 405hc32toh(const struct ehci_softc *sc, const uint32_t v) 406{ 407 return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? be32toh(v) : le32toh(v); 408} 409 410static __inline uint16_t 411hc16toh(const struct ehci_softc *sc, const uint16_t v) 412{ 413 return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? be16toh(v) : le16toh(v); 414} 415#else 416/* 417 * Normal little-endian only conversion routines. 418 */ 419static __inline uint32_t 420htohc32(const struct ehci_softc *sc, const uint32_t v) 421{ 422 return htole32(v); 423} 424 425static __inline uint16_t 426htohc16(const struct ehci_softc *sc, const uint16_t v) 427{ 428 return htole16(v); 429} 430 431static __inline uint32_t 432hc32toh(const struct ehci_softc *sc, const uint32_t v) 433{ 434 return le32toh(v); 435} 436 437static __inline uint16_t 438hc16toh(const struct ehci_softc *sc, const uint16_t v) 439{ 440 return le16toh(v); 441} 442#endif 443 444usb_bus_mem_cb_t ehci_iterate_hw_softc; 445 446usb_error_t ehci_reset(ehci_softc_t *sc); 447usb_error_t ehci_init(ehci_softc_t *sc); 448void ehci_detach(struct ehci_softc *sc); 449void ehci_suspend(struct ehci_softc *sc); 450void ehci_resume(struct ehci_softc *sc); 451void ehci_shutdown(ehci_softc_t *sc); 452void ehci_interrupt(ehci_softc_t *sc); 453 454#endif /* _EHCI_H_ */ 455