xref: /freebsd/sys/dev/usb/controller/ehci.h (revision 0957b409)
1 /* $FreeBSD$ */
2 /*-
3  * SPDX-License-Identifier: BSD-2-Clause-NetBSD
4  *
5  * Copyright (c) 2001 The NetBSD Foundation, Inc.
6  * All rights reserved.
7  *
8  * This code is derived from software contributed to The NetBSD Foundation
9  * by Lennart Augustsson (lennart@augustsson.net).
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30  * POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #ifndef _EHCI_H_
34 #define	_EHCI_H_
35 
36 #define	EHCI_MAX_DEVICES MIN(USB_MAX_DEVICES, 128)
37 
38 /*
39  * Alignment NOTE: structures must be aligned so that the hardware can index
40  * without performing addition.
41  */
42 #define	EHCI_FRAMELIST_ALIGN          0x1000	/* bytes */
43 #define	EHCI_FRAMELIST_COUNT            1024	/* units */
44 #define	EHCI_VIRTUAL_FRAMELIST_COUNT     128	/* units */
45 
46 #if ((8*EHCI_VIRTUAL_FRAMELIST_COUNT) < USB_MAX_HS_ISOC_FRAMES_PER_XFER)
47 #error "maximum number of high-speed isochronous frames is higher than supported!"
48 #endif
49 
50 #if (EHCI_VIRTUAL_FRAMELIST_COUNT < USB_MAX_FS_ISOC_FRAMES_PER_XFER)
51 #error "maximum number of full-speed isochronous frames is higher than supported!"
52 #endif
53 
54 /* Link types */
55 #define	EHCI_LINK_TERMINATE	0x00000001
56 #define	EHCI_LINK_TYPE(x)	((x) & 0x00000006)
57 #define	EHCI_LINK_ITD		0x0
58 #define	EHCI_LINK_QH		0x2
59 #define	EHCI_LINK_SITD		0x4
60 #define	EHCI_LINK_FSTN		0x6
61 #define	EHCI_LINK_ADDR(x)	((x) &~ 0x1f)
62 
63 /* Structures alignment (bytes) */
64 #define	EHCI_ITD_ALIGN	128
65 #define	EHCI_SITD_ALIGN	64
66 #define	EHCI_QTD_ALIGN	64
67 #define	EHCI_QH_ALIGN	128
68 #define	EHCI_FSTN_ALIGN	32
69 /* Data buffers are divided into one or more pages */
70 #define	EHCI_PAGE_SIZE	0x1000
71 #if	((USB_PAGE_SIZE < EHCI_PAGE_SIZE) || (EHCI_PAGE_SIZE == 0) ||	\
72 	(USB_PAGE_SIZE < EHCI_ITD_ALIGN) || (EHCI_ITD_ALIGN == 0) ||	\
73 	(USB_PAGE_SIZE < EHCI_SITD_ALIGN) || (EHCI_SITD_ALIGN == 0) ||	\
74 	(USB_PAGE_SIZE < EHCI_QTD_ALIGN) || (EHCI_QTD_ALIGN == 0) ||	\
75 	(USB_PAGE_SIZE < EHCI_QH_ALIGN) || (EHCI_QH_ALIGN == 0) ||	\
76 	(USB_PAGE_SIZE < EHCI_FSTN_ALIGN) || (EHCI_FSTN_ALIGN == 0))
77 #error	"Invalid USB page size!"
78 #endif
79 
80 
81 /*
82  * Isochronous Transfer Descriptor.  This descriptor is used for high speed
83  * transfers only.
84  */
85 struct ehci_itd {
86 	volatile uint32_t itd_next;
87 	volatile uint32_t itd_status[8];
88 #define	EHCI_ITD_SET_LEN(x)	((x) << 16)
89 #define	EHCI_ITD_GET_LEN(x)	(((x) >> 16) & 0xFFF)
90 #define	EHCI_ITD_IOC		(1 << 15)
91 #define	EHCI_ITD_SET_PG(x)	((x) << 12)
92 #define	EHCI_ITD_GET_PG(x)	(((x) >> 12) & 0x7)
93 #define	EHCI_ITD_SET_OFFS(x)	(x)
94 #define	EHCI_ITD_GET_OFFS(x)	(((x) >> 0) & 0xFFF)
95 #define	EHCI_ITD_ACTIVE		(1U << 31)
96 #define	EHCI_ITD_DATABUFERR	(1 << 30)
97 #define	EHCI_ITD_BABBLE		(1 << 29)
98 #define	EHCI_ITD_XACTERR	(1 << 28)
99 	volatile uint32_t itd_bp[7];
100 	/* itd_bp[0] */
101 #define	EHCI_ITD_SET_ADDR(x)	(x)
102 #define	EHCI_ITD_GET_ADDR(x)	(((x) >> 0) & 0x7F)
103 #define	EHCI_ITD_SET_ENDPT(x)	((x) << 8)
104 #define	EHCI_ITD_GET_ENDPT(x)	(((x) >> 8) & 0xF)
105 	/* itd_bp[1] */
106 #define	EHCI_ITD_SET_DIR_IN	(1 << 11)
107 #define	EHCI_ITD_SET_DIR_OUT	(0 << 11)
108 #define	EHCI_ITD_SET_MPL(x)	(x)
109 #define	EHCI_ITD_GET_MPL(x)	(((x) >> 0) & 0x7FF)
110 	volatile uint32_t itd_bp_hi[7];
111 /*
112  * Extra information needed:
113  */
114 	uint32_t itd_self;
115 	struct ehci_itd *next;
116 	struct ehci_itd *prev;
117 	struct ehci_itd *obj_next;
118 	struct usb_page_cache *page_cache;
119 } __aligned(EHCI_ITD_ALIGN);
120 
121 typedef struct ehci_itd ehci_itd_t;
122 
123 /*
124  * Split Transaction Isochronous Transfer Descriptor.  This descriptor is used
125  * for full speed transfers only.
126  */
127 struct ehci_sitd {
128 	volatile uint32_t sitd_next;
129 	volatile uint32_t sitd_portaddr;
130 #define	EHCI_SITD_SET_DIR_OUT	(0 << 31)
131 #define	EHCI_SITD_SET_DIR_IN	(1U << 31)
132 #define	EHCI_SITD_SET_ADDR(x)	(x)
133 #define	EHCI_SITD_GET_ADDR(x)	((x) & 0x7F)
134 #define	EHCI_SITD_SET_ENDPT(x)	((x) << 8)
135 #define	EHCI_SITD_GET_ENDPT(x)	(((x) >> 8) & 0xF)
136 #define	EHCI_SITD_GET_DIR(x)	((x) >> 31)
137 #define	EHCI_SITD_SET_PORT(x)	((x) << 24)
138 #define	EHCI_SITD_GET_PORT(x)	(((x) >> 24) & 0x7F)
139 #define	EHCI_SITD_SET_HUBA(x)	((x) << 16)
140 #define	EHCI_SITD_GET_HUBA(x)	(((x) >> 16) & 0x7F)
141 	volatile uint32_t sitd_mask;
142 #define	EHCI_SITD_SET_SMASK(x)	(x)
143 #define	EHCI_SITD_SET_CMASK(x)	((x) << 8)
144 	volatile uint32_t sitd_status;
145 #define	EHCI_SITD_COMPLETE_SPLIT	(1<<1)
146 #define	EHCI_SITD_START_SPLIT		(0<<1)
147 #define	EHCI_SITD_MISSED_MICRO_FRAME	(1<<2)
148 #define	EHCI_SITD_XACTERR		(1<<3)
149 #define	EHCI_SITD_BABBLE		(1<<4)
150 #define	EHCI_SITD_DATABUFERR		(1<<5)
151 #define	EHCI_SITD_ERROR			(1<<6)
152 #define	EHCI_SITD_ACTIVE		(1<<7)
153 #define	EHCI_SITD_IOC			(1<<31)
154 #define	EHCI_SITD_SET_LEN(len)		((len)<<16)
155 #define	EHCI_SITD_GET_LEN(x)		(((x)>>16) & 0x3FF)
156 	volatile uint32_t sitd_bp[2];
157 	volatile uint32_t sitd_back;
158 	volatile uint32_t sitd_bp_hi[2];
159 /*
160  * Extra information needed:
161  */
162 	uint32_t sitd_self;
163 	struct ehci_sitd *next;
164 	struct ehci_sitd *prev;
165 	struct ehci_sitd *obj_next;
166 	struct usb_page_cache *page_cache;
167 } __aligned(EHCI_SITD_ALIGN);
168 
169 typedef struct ehci_sitd ehci_sitd_t;
170 
171 /* Queue Element Transfer Descriptor */
172 struct ehci_qtd {
173 	volatile uint32_t qtd_next;
174 	volatile uint32_t qtd_altnext;
175 	volatile uint32_t qtd_status;
176 #define	EHCI_QTD_GET_STATUS(x)	(((x) >>  0) & 0xff)
177 #define	EHCI_QTD_SET_STATUS(x)  ((x) << 0)
178 #define	EHCI_QTD_ACTIVE		0x80
179 #define	EHCI_QTD_HALTED		0x40
180 #define	EHCI_QTD_BUFERR		0x20
181 #define	EHCI_QTD_BABBLE		0x10
182 #define	EHCI_QTD_XACTERR	0x08
183 #define	EHCI_QTD_MISSEDMICRO	0x04
184 #define	EHCI_QTD_SPLITXSTATE	0x02
185 #define	EHCI_QTD_PINGSTATE	0x01
186 #define	EHCI_QTD_STATERRS	0x74
187 #define	EHCI_QTD_GET_PID(x)	(((x) >>  8) & 0x3)
188 #define	EHCI_QTD_SET_PID(x)	((x) <<  8)
189 #define	EHCI_QTD_PID_OUT	0x0
190 #define	EHCI_QTD_PID_IN		0x1
191 #define	EHCI_QTD_PID_SETUP	0x2
192 #define	EHCI_QTD_GET_CERR(x)	(((x) >> 10) &  0x3)
193 #define	EHCI_QTD_SET_CERR(x)	((x) << 10)
194 #define	EHCI_QTD_GET_C_PAGE(x)	(((x) >> 12) &  0x7)
195 #define	EHCI_QTD_SET_C_PAGE(x)	((x) << 12)
196 #define	EHCI_QTD_GET_IOC(x)	(((x) >> 15) &  0x1)
197 #define	EHCI_QTD_IOC		0x00008000
198 #define	EHCI_QTD_GET_BYTES(x)	(((x) >> 16) &  0x7fff)
199 #define	EHCI_QTD_SET_BYTES(x)	((x) << 16)
200 #define	EHCI_QTD_GET_TOGGLE(x)	(((x) >> 31) &  0x1)
201 #define	EHCI_QTD_SET_TOGGLE(x)	((x) << 31)
202 #define	EHCI_QTD_TOGGLE_MASK	0x80000000
203 #define	EHCI_QTD_NBUFFERS	5
204 #define	EHCI_QTD_PAYLOAD_MAX ((EHCI_QTD_NBUFFERS-1)*EHCI_PAGE_SIZE)
205 	volatile uint32_t qtd_buffer[EHCI_QTD_NBUFFERS];
206 	volatile uint32_t qtd_buffer_hi[EHCI_QTD_NBUFFERS];
207 /*
208  * Extra information needed:
209  */
210 	struct ehci_qtd *alt_next;
211 	struct ehci_qtd *obj_next;
212 	struct usb_page_cache *page_cache;
213 	uint32_t qtd_self;
214 	uint16_t len;
215 } __aligned(EHCI_QTD_ALIGN);
216 
217 typedef struct ehci_qtd ehci_qtd_t;
218 
219 /* Queue Head Sub Structure */
220 struct ehci_qh_sub {
221 	volatile uint32_t qtd_next;
222 	volatile uint32_t qtd_altnext;
223 	volatile uint32_t qtd_status;
224 	volatile uint32_t qtd_buffer[EHCI_QTD_NBUFFERS];
225 	volatile uint32_t qtd_buffer_hi[EHCI_QTD_NBUFFERS];
226 } __aligned(4);
227 
228 /* Queue Head */
229 struct ehci_qh {
230 	volatile uint32_t qh_link;
231 	volatile uint32_t qh_endp;
232 #define	EHCI_QH_GET_ADDR(x)	(((x) >>  0) & 0x7f)	/* endpoint addr */
233 #define	EHCI_QH_SET_ADDR(x)	(x)
234 #define	EHCI_QH_ADDRMASK	0x0000007f
235 #define	EHCI_QH_GET_INACT(x)	(((x) >>  7) & 0x01)	/* inactivate on next */
236 #define	EHCI_QH_INACT		0x00000080
237 #define	EHCI_QH_GET_ENDPT(x)	(((x) >>  8) & 0x0f)	/* endpoint no */
238 #define	EHCI_QH_SET_ENDPT(x)	((x) <<  8)
239 #define	EHCI_QH_GET_EPS(x)	(((x) >> 12) & 0x03)	/* endpoint speed */
240 #define	EHCI_QH_SET_EPS(x)	((x) << 12)
241 #define	EHCI_QH_SPEED_FULL	0x0
242 #define	EHCI_QH_SPEED_LOW	0x1
243 #define	EHCI_QH_SPEED_HIGH	0x2
244 #define	EHCI_QH_GET_DTC(x)	(((x) >> 14) & 0x01)	/* data toggle control */
245 #define	EHCI_QH_DTC		0x00004000
246 #define	EHCI_QH_GET_HRECL(x)	(((x) >> 15) & 0x01)	/* head of reclamation */
247 #define	EHCI_QH_HRECL		0x00008000
248 #define	EHCI_QH_GET_MPL(x)	(((x) >> 16) & 0x7ff)	/* max packet len */
249 #define	EHCI_QH_SET_MPL(x)	((x) << 16)
250 #define	EHCI_QH_MPLMASK		0x07ff0000
251 #define	EHCI_QH_GET_CTL(x)	(((x) >> 27) & 0x01)	/* control endpoint */
252 #define	EHCI_QH_CTL		0x08000000
253 #define	EHCI_QH_GET_NRL(x)	(((x) >> 28) & 0x0f)	/* NAK reload */
254 #define	EHCI_QH_SET_NRL(x)	((x) << 28)
255 	volatile uint32_t qh_endphub;
256 #define	EHCI_QH_GET_SMASK(x)	(((x) >>  0) & 0xff)	/* intr sched mask */
257 #define	EHCI_QH_SET_SMASK(x)	((x) <<  0)
258 #define	EHCI_QH_GET_CMASK(x)	(((x) >>  8) & 0xff)	/* split completion mask */
259 #define	EHCI_QH_SET_CMASK(x)	((x) <<  8)
260 #define	EHCI_QH_GET_HUBA(x)	(((x) >> 16) & 0x7f)	/* hub address */
261 #define	EHCI_QH_SET_HUBA(x)	((x) << 16)
262 #define	EHCI_QH_GET_PORT(x)	(((x) >> 23) & 0x7f)	/* hub port */
263 #define	EHCI_QH_SET_PORT(x)	((x) << 23)
264 #define	EHCI_QH_GET_MULT(x)	(((x) >> 30) & 0x03)	/* pipe multiplier */
265 #define	EHCI_QH_SET_MULT(x)	((x) << 30)
266 	volatile uint32_t qh_curqtd;
267 	struct ehci_qh_sub qh_qtd;
268 /*
269  * Extra information needed:
270  */
271 	struct ehci_qh *next;
272 	struct ehci_qh *prev;
273 	struct ehci_qh *obj_next;
274 	struct usb_page_cache *page_cache;
275 	uint32_t qh_self;
276 } __aligned(EHCI_QH_ALIGN);
277 
278 typedef struct ehci_qh ehci_qh_t;
279 
280 /* Periodic Frame Span Traversal Node */
281 struct ehci_fstn {
282 	volatile uint32_t fstn_link;
283 	volatile uint32_t fstn_back;
284 } __aligned(EHCI_FSTN_ALIGN);
285 
286 typedef struct ehci_fstn ehci_fstn_t;
287 
288 struct ehci_hw_softc {
289 	struct usb_page_cache pframes_pc;
290 	struct usb_page_cache terminate_pc;
291 	struct usb_page_cache async_start_pc;
292 	struct usb_page_cache intr_start_pc[EHCI_VIRTUAL_FRAMELIST_COUNT];
293 	struct usb_page_cache isoc_hs_start_pc[EHCI_VIRTUAL_FRAMELIST_COUNT];
294 	struct usb_page_cache isoc_fs_start_pc[EHCI_VIRTUAL_FRAMELIST_COUNT];
295 
296 	struct usb_page pframes_pg;
297 	struct usb_page terminate_pg;
298 	struct usb_page async_start_pg;
299 	struct usb_page intr_start_pg[EHCI_VIRTUAL_FRAMELIST_COUNT];
300 	struct usb_page isoc_hs_start_pg[EHCI_VIRTUAL_FRAMELIST_COUNT];
301 	struct usb_page isoc_fs_start_pg[EHCI_VIRTUAL_FRAMELIST_COUNT];
302 };
303 
304 struct ehci_config_desc {
305 	struct usb_config_descriptor confd;
306 	struct usb_interface_descriptor ifcd;
307 	struct usb_endpoint_descriptor endpd;
308 } __packed;
309 
310 union ehci_hub_desc {
311 	struct usb_status stat;
312 	struct usb_port_status ps;
313 	struct usb_hub_descriptor hubd;
314 	uint8_t	temp[128];
315 };
316 
317 typedef struct ehci_softc {
318 	struct ehci_hw_softc sc_hw;
319 	struct usb_bus sc_bus;		/* base device */
320 	struct usb_callout sc_tmo_pcd;
321 	struct usb_callout sc_tmo_poll;
322 	union ehci_hub_desc sc_hub_desc;
323 
324 	struct usb_device *sc_devices[EHCI_MAX_DEVICES];
325 	struct resource *sc_io_res;
326 	struct resource *sc_irq_res;
327 	struct ehci_qh *sc_async_p_last;
328 	struct ehci_qh *sc_intr_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT];
329 	struct ehci_sitd *sc_isoc_fs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT];
330 	struct ehci_itd *sc_isoc_hs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT];
331 	void   *sc_intr_hdl;
332 	bus_size_t sc_io_size;
333 	bus_space_tag_t sc_io_tag;
334 	bus_space_handle_t sc_io_hdl;
335 
336 	uint32_t sc_terminate_self;	/* TD short packet termination pointer */
337 	uint32_t sc_eintrs;
338 
339 	uint16_t sc_intr_stat[EHCI_VIRTUAL_FRAMELIST_COUNT];
340 	uint16_t sc_id_vendor;		/* vendor ID for root hub */
341 	uint16_t sc_flags;		/* chip specific flags */
342 #define	EHCI_SCFLG_NORESTERM	0x0004	/* don't terminate reset sequence */
343 #define	EHCI_SCFLG_BIGEDESC	0x0008	/* big-endian byte order descriptors */
344 #define	EHCI_SCFLG_TT		0x0020	/* transaction translator present */
345 #define	EHCI_SCFLG_LOSTINTRBUG	0x0040	/* workaround for VIA / ATI chipsets */
346 #define	EHCI_SCFLG_IAADBUG	0x0080	/* workaround for nVidia chipsets */
347 #define	EHCI_SCFLG_DONTRESET	0x0100	/* don't reset ctrl. in ehci_init() */
348 #define	EHCI_SCFLG_DONEINIT	0x1000	/* ehci_init() has been called. */
349 
350 	uint8_t	sc_offs;		/* offset to operational registers */
351 	uint8_t	sc_doorbell_disable;	/* set on doorbell failure */
352 	uint8_t	sc_noport;
353 	uint8_t	sc_addr;		/* device address */
354 	uint8_t	sc_conf;		/* device configuration */
355 	uint8_t	sc_isreset;
356 	uint8_t	sc_hub_idata[8];
357 
358 	char	sc_vendor[16];		/* vendor string for root hub */
359 
360 	void	(*sc_vendor_post_reset)(struct ehci_softc *sc);
361 	uint16_t (*sc_vendor_get_port_speed)(struct ehci_softc *sc,
362 	    uint16_t index);
363 
364 } ehci_softc_t;
365 
366 #define	EREAD1(sc, a)	bus_space_read_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (a))
367 #define	EREAD2(sc, a)	bus_space_read_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (a))
368 #define	EREAD4(sc, a)	bus_space_read_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (a))
369 #define	EWRITE1(sc, a, x)						\
370 	    bus_space_write_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (a), (x))
371 #define	EWRITE2(sc, a, x)						\
372 	    bus_space_write_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (a), (x))
373 #define	EWRITE4(sc, a, x)						\
374 	    bus_space_write_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (a), (x))
375 #define	EOREAD1(sc, a)							\
376 	    bus_space_read_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a))
377 #define	EOREAD2(sc, a)							\
378 	    bus_space_read_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a))
379 #define	EOREAD4(sc, a)							\
380 	    bus_space_read_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a))
381 #define	EOWRITE1(sc, a, x)						\
382 	    bus_space_write_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a), (x))
383 #define	EOWRITE2(sc, a, x)						\
384 	    bus_space_write_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a), (x))
385 #define	EOWRITE4(sc, a, x)						\
386 	    bus_space_write_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a), (x))
387 
388 #ifdef USB_EHCI_BIG_ENDIAN_DESC
389 /*
390  * Handle byte order conversion between host and ``host controller''.
391  * Typically the latter is little-endian but some controllers require
392  * big-endian in which case we may need to manually swap.
393  */
394 static __inline uint32_t
395 htohc32(const struct ehci_softc *sc, const uint32_t v)
396 {
397 	return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? htobe32(v) : htole32(v);
398 }
399 
400 static __inline uint16_t
401 htohc16(const struct ehci_softc *sc, const uint16_t v)
402 {
403 	return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? htobe16(v) : htole16(v);
404 }
405 
406 static __inline uint32_t
407 hc32toh(const struct ehci_softc *sc, const uint32_t v)
408 {
409 	return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? be32toh(v) : le32toh(v);
410 }
411 
412 static __inline uint16_t
413 hc16toh(const struct ehci_softc *sc, const uint16_t v)
414 {
415 	return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? be16toh(v) : le16toh(v);
416 }
417 #else
418 /*
419  * Normal little-endian only conversion routines.
420  */
421 static __inline uint32_t
422 htohc32(const struct ehci_softc *sc, const uint32_t v)
423 {
424 	return htole32(v);
425 }
426 
427 static __inline uint16_t
428 htohc16(const struct ehci_softc *sc, const uint16_t v)
429 {
430 	return htole16(v);
431 }
432 
433 static __inline uint32_t
434 hc32toh(const struct ehci_softc *sc, const uint32_t v)
435 {
436 	return le32toh(v);
437 }
438 
439 static __inline uint16_t
440 hc16toh(const struct ehci_softc *sc, const uint16_t v)
441 {
442 	return le16toh(v);
443 }
444 #endif
445 
446 usb_bus_mem_cb_t ehci_iterate_hw_softc;
447 
448 usb_error_t ehci_reset(ehci_softc_t *sc);
449 usb_error_t ehci_init(ehci_softc_t *sc);
450 void	ehci_detach(struct ehci_softc *sc);
451 void	ehci_interrupt(ehci_softc_t *sc);
452 uint16_t ehci_get_port_speed_portsc(struct ehci_softc *sc, uint16_t index);
453 uint16_t ehci_get_port_speed_hostc(struct ehci_softc *sc, uint16_t index);
454 
455 #endif					/* _EHCI_H_ */
456