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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 #include <sys/endian.h>
37 
38 #define	EHCI_MAX_DEVICES MIN(USB_MAX_DEVICES, 128)
39 
40 /*
41  * Alignment NOTE: structures must be aligned so that the hardware can index
42  * without performing addition.
43  */
44 #define	EHCI_FRAMELIST_ALIGN          0x1000	/* bytes */
45 #define	EHCI_FRAMELIST_COUNT            1024	/* units */
46 #define	EHCI_VIRTUAL_FRAMELIST_COUNT     128	/* units */
47 
48 #if ((8 * EHCI_VIRTUAL_FRAMELIST_COUNT) < USB_MAX_HS_ISOC_FRAMES_PER_XFER)
49 #error "maximum number of high-speed isochronous frames is higher than supported!"
50 #endif
51 
52 #if (EHCI_VIRTUAL_FRAMELIST_COUNT < USB_MAX_FS_ISOC_FRAMES_PER_XFER)
53 #error "maximum number of full-speed isochronous frames is higher than supported!"
54 #endif
55 
56 /* Link types */
57 #define	EHCI_LINK_TERMINATE	0x00000001
58 #define	EHCI_LINK_TYPE(x)	((x) & 0x00000006)
59 #define	EHCI_LINK_ITD		0x0
60 #define	EHCI_LINK_QH		0x2
61 #define	EHCI_LINK_SITD		0x4
62 #define	EHCI_LINK_FSTN		0x6
63 #define	EHCI_LINK_ADDR(x)	((x) &~ 0x1f)
64 
65 /* Structures alignment (bytes) */
66 #define	EHCI_ITD_ALIGN	128
67 #define	EHCI_SITD_ALIGN	64
68 #define	EHCI_QTD_ALIGN	64
69 #define	EHCI_QH_ALIGN	128
70 #define	EHCI_FSTN_ALIGN	32
71 /* Data buffers are divided into one or more pages */
72 #define	EHCI_PAGE_SIZE	0x1000
73 #if	((USB_PAGE_SIZE < EHCI_PAGE_SIZE) || (EHCI_PAGE_SIZE == 0) ||	\
74 	(USB_PAGE_SIZE < EHCI_ITD_ALIGN) || (EHCI_ITD_ALIGN == 0) ||	\
75 	(USB_PAGE_SIZE < EHCI_SITD_ALIGN) || (EHCI_SITD_ALIGN == 0) ||	\
76 	(USB_PAGE_SIZE < EHCI_QTD_ALIGN) || (EHCI_QTD_ALIGN == 0) ||	\
77 	(USB_PAGE_SIZE < EHCI_QH_ALIGN) || (EHCI_QH_ALIGN == 0) ||	\
78 	(USB_PAGE_SIZE < EHCI_FSTN_ALIGN) || (EHCI_FSTN_ALIGN == 0))
79 #error	"Invalid USB page size!"
80 #endif
81 
82 /*
83  * Isochronous Transfer Descriptor.  This descriptor is used for high speed
84  * transfers only.
85  */
86 struct ehci_itd {
87 	volatile uint32_t itd_next;
88 	volatile uint32_t itd_status[8];
89 #define	EHCI_ITD_SET_LEN(x)	((x) << 16)
90 #define	EHCI_ITD_GET_LEN(x)	(((x) >> 16) & 0xFFF)
91 #define	EHCI_ITD_IOC		(1 << 15)
92 #define	EHCI_ITD_SET_PG(x)	((x) << 12)
93 #define	EHCI_ITD_GET_PG(x)	(((x) >> 12) & 0x7)
94 #define	EHCI_ITD_SET_OFFS(x)	(x)
95 #define	EHCI_ITD_GET_OFFS(x)	(((x) >> 0) & 0xFFF)
96 #define	EHCI_ITD_ACTIVE		(1U << 31)
97 #define	EHCI_ITD_DATABUFERR	(1 << 30)
98 #define	EHCI_ITD_BABBLE		(1 << 29)
99 #define	EHCI_ITD_XACTERR	(1 << 28)
100 
101 #define	EHCI_ITD_BP_MAX 7
102 	volatile uint32_t itd_bp[EHCI_ITD_BP_MAX];
103 	/* itd_bp[0] */
104 #define	EHCI_ITD_SET_ADDR(x)	(x)
105 #define	EHCI_ITD_GET_ADDR(x)	(((x) >> 0) & 0x7F)
106 #define	EHCI_ITD_SET_ENDPT(x)	((x) << 8)
107 #define	EHCI_ITD_GET_ENDPT(x)	(((x) >> 8) & 0xF)
108 	/* itd_bp[1] */
109 #define	EHCI_ITD_SET_DIR_IN	(1 << 11)
110 #define	EHCI_ITD_SET_DIR_OUT	(0 << 11)
111 #define	EHCI_ITD_SET_MPL(x)	(x)
112 #define	EHCI_ITD_GET_MPL(x)	(((x) >> 0) & 0x7FF)
113 	volatile uint32_t itd_bp_hi[EHCI_ITD_BP_MAX];
114 /*
115  * Extra information needed:
116  */
117 	uint32_t itd_self;
118 	struct ehci_itd *next;
119 	struct ehci_itd *prev;
120 	struct ehci_itd *obj_next;
121 	struct usb_page_cache *page_cache;
122 } __aligned(EHCI_ITD_ALIGN);
123 
124 typedef struct ehci_itd ehci_itd_t;
125 
126 /*
127  * Split Transaction Isochronous Transfer Descriptor.  This descriptor is used
128  * for full speed transfers only.
129  */
130 struct ehci_sitd {
131 	volatile uint32_t sitd_next;
132 	volatile uint32_t sitd_portaddr;
133 #define	EHCI_SITD_SET_DIR_OUT	(0 << 31)
134 #define	EHCI_SITD_SET_DIR_IN	(1U << 31)
135 #define	EHCI_SITD_SET_ADDR(x)	(x)
136 #define	EHCI_SITD_GET_ADDR(x)	((x) & 0x7F)
137 #define	EHCI_SITD_SET_ENDPT(x)	((x) << 8)
138 #define	EHCI_SITD_GET_ENDPT(x)	(((x) >> 8) & 0xF)
139 #define	EHCI_SITD_GET_DIR(x)	((x) >> 31)
140 #define	EHCI_SITD_SET_PORT(x)	((x) << 24)
141 #define	EHCI_SITD_GET_PORT(x)	(((x) >> 24) & 0x7F)
142 #define	EHCI_SITD_SET_HUBA(x)	((x) << 16)
143 #define	EHCI_SITD_GET_HUBA(x)	(((x) >> 16) & 0x7F)
144 	volatile uint32_t sitd_mask;
145 #define	EHCI_SITD_SET_SMASK(x)	(x)
146 #define	EHCI_SITD_SET_CMASK(x)	((x) << 8)
147 	volatile uint32_t sitd_status;
148 #define	EHCI_SITD_COMPLETE_SPLIT	(1<<1)
149 #define	EHCI_SITD_START_SPLIT		(0<<1)
150 #define	EHCI_SITD_MISSED_MICRO_FRAME	(1<<2)
151 #define	EHCI_SITD_XACTERR		(1<<3)
152 #define	EHCI_SITD_BABBLE		(1<<4)
153 #define	EHCI_SITD_DATABUFERR		(1<<5)
154 #define	EHCI_SITD_ERROR			(1<<6)
155 #define	EHCI_SITD_ACTIVE		(1<<7)
156 #define	EHCI_SITD_IOC			(1U<<31)
157 #define	EHCI_SITD_SET_LEN(len)		((len)<<16)
158 #define	EHCI_SITD_GET_LEN(x)		(((x)>>16) & 0x3FF)
159 	volatile uint32_t sitd_bp[2];
160 	volatile uint32_t sitd_back;
161 	volatile uint32_t sitd_bp_hi[2];
162 /*
163  * Extra information needed:
164  */
165 	uint32_t sitd_self;
166 	struct ehci_sitd *next;
167 	struct ehci_sitd *prev;
168 	struct ehci_sitd *obj_next;
169 	struct usb_page_cache *page_cache;
170 } __aligned(EHCI_SITD_ALIGN);
171 
172 typedef struct ehci_sitd ehci_sitd_t;
173 
174 /* Queue Element Transfer Descriptor */
175 struct ehci_qtd {
176 	volatile uint32_t qtd_next;
177 	volatile uint32_t qtd_altnext;
178 	volatile uint32_t qtd_status;
179 #define	EHCI_QTD_GET_STATUS(x)	(((x) >>  0) & 0xff)
180 #define	EHCI_QTD_SET_STATUS(x)  ((x) << 0)
181 #define	EHCI_QTD_ACTIVE		0x80
182 #define	EHCI_QTD_HALTED		0x40
183 #define	EHCI_QTD_BUFERR		0x20
184 #define	EHCI_QTD_BABBLE		0x10
185 #define	EHCI_QTD_XACTERR	0x08
186 #define	EHCI_QTD_MISSEDMICRO	0x04
187 #define	EHCI_QTD_SPLITXSTATE	0x02
188 #define	EHCI_QTD_PINGSTATE	0x01
189 #define	EHCI_QTD_STATERRS	0x74
190 #define	EHCI_QTD_GET_PID(x)	(((x) >>  8) & 0x3)
191 #define	EHCI_QTD_SET_PID(x)	((x) <<  8)
192 #define	EHCI_QTD_PID_OUT	0x0
193 #define	EHCI_QTD_PID_IN		0x1
194 #define	EHCI_QTD_PID_SETUP	0x2
195 #define	EHCI_QTD_GET_CERR(x)	(((x) >> 10) &  0x3)
196 #define	EHCI_QTD_SET_CERR(x)	((x) << 10)
197 #define	EHCI_QTD_GET_C_PAGE(x)	(((x) >> 12) &  0x7)
198 #define	EHCI_QTD_SET_C_PAGE(x)	((x) << 12)
199 #define	EHCI_QTD_GET_IOC(x)	(((x) >> 15) &  0x1)
200 #define	EHCI_QTD_IOC		0x00008000
201 #define	EHCI_QTD_GET_BYTES(x)	(((x) >> 16) &  0x7fff)
202 #define	EHCI_QTD_SET_BYTES(x)	((x) << 16)
203 #define	EHCI_QTD_GET_TOGGLE(x)	(((x) >> 31) &  0x1)
204 #define	EHCI_QTD_SET_TOGGLE(x)	((x) << 31)
205 #define	EHCI_QTD_TOGGLE_MASK	0x80000000
206 #define	EHCI_QTD_NBUFFERS	5
207 #define	EHCI_QTD_PAYLOAD_MAX ((EHCI_QTD_NBUFFERS-1)*EHCI_PAGE_SIZE)
208 	volatile uint32_t qtd_buffer[EHCI_QTD_NBUFFERS];
209 	volatile uint32_t qtd_buffer_hi[EHCI_QTD_NBUFFERS];
210 /*
211  * Extra information needed:
212  */
213 	struct ehci_qtd *alt_next;
214 	struct ehci_qtd *obj_next;
215 	struct usb_page_cache *page_cache;
216 	uint32_t qtd_self;
217 	uint16_t len;
218 } __aligned(EHCI_QTD_ALIGN);
219 
220 typedef struct ehci_qtd ehci_qtd_t;
221 
222 /* Queue Head Sub Structure */
223 struct ehci_qh_sub {
224 	volatile uint32_t qtd_next;
225 	volatile uint32_t qtd_altnext;
226 	volatile uint32_t qtd_status;
227 	volatile uint32_t qtd_buffer[EHCI_QTD_NBUFFERS];
228 	volatile uint32_t qtd_buffer_hi[EHCI_QTD_NBUFFERS];
229 } __aligned(4);
230 
231 /* Queue Head */
232 struct ehci_qh {
233 	volatile uint32_t qh_link;
234 	volatile uint32_t qh_endp;
235 #define	EHCI_QH_GET_ADDR(x)	(((x) >>  0) & 0x7f)	/* endpoint addr */
236 #define	EHCI_QH_SET_ADDR(x)	(x)
237 #define	EHCI_QH_ADDRMASK	0x0000007f
238 #define	EHCI_QH_GET_INACT(x)	(((x) >>  7) & 0x01)	/* inactivate on next */
239 #define	EHCI_QH_INACT		0x00000080
240 #define	EHCI_QH_GET_ENDPT(x)	(((x) >>  8) & 0x0f)	/* endpoint no */
241 #define	EHCI_QH_SET_ENDPT(x)	((x) <<  8)
242 #define	EHCI_QH_GET_EPS(x)	(((x) >> 12) & 0x03)	/* endpoint speed */
243 #define	EHCI_QH_SET_EPS(x)	((x) << 12)
244 #define	EHCI_QH_SPEED_FULL	0x0
245 #define	EHCI_QH_SPEED_LOW	0x1
246 #define	EHCI_QH_SPEED_HIGH	0x2
247 #define	EHCI_QH_GET_DTC(x)	(((x) >> 14) & 0x01)	/* data toggle control */
248 #define	EHCI_QH_DTC		0x00004000
249 #define	EHCI_QH_GET_HRECL(x)	(((x) >> 15) & 0x01)	/* head of reclamation */
250 #define	EHCI_QH_HRECL		0x00008000
251 #define	EHCI_QH_GET_MPL(x)	(((x) >> 16) & 0x7ff)	/* max packet len */
252 #define	EHCI_QH_SET_MPL(x)	((x) << 16)
253 #define	EHCI_QH_MPLMASK		0x07ff0000
254 #define	EHCI_QH_GET_CTL(x)	(((x) >> 27) & 0x01)	/* control endpoint */
255 #define	EHCI_QH_CTL		0x08000000
256 #define	EHCI_QH_GET_NRL(x)	(((x) >> 28) & 0x0f)	/* NAK reload */
257 #define	EHCI_QH_SET_NRL(x)	((x) << 28)
258 	volatile uint32_t qh_endphub;
259 #define	EHCI_QH_GET_SMASK(x)	(((x) >>  0) & 0xff)	/* intr sched mask */
260 #define	EHCI_QH_SET_SMASK(x)	((x) <<  0)
261 #define	EHCI_QH_GET_CMASK(x)	(((x) >>  8) & 0xff)	/* split completion mask */
262 #define	EHCI_QH_SET_CMASK(x)	((x) <<  8)
263 #define	EHCI_QH_GET_HUBA(x)	(((x) >> 16) & 0x7f)	/* hub address */
264 #define	EHCI_QH_SET_HUBA(x)	((x) << 16)
265 #define	EHCI_QH_GET_PORT(x)	(((x) >> 23) & 0x7f)	/* hub port */
266 #define	EHCI_QH_SET_PORT(x)	((x) << 23)
267 #define	EHCI_QH_GET_MULT(x)	(((x) >> 30) & 0x03)	/* pipe multiplier */
268 #define	EHCI_QH_SET_MULT(x)	((x) << 30)
269 	volatile uint32_t qh_curqtd;
270 	struct ehci_qh_sub qh_qtd;
271 /*
272  * Extra information needed:
273  */
274 	struct ehci_qh *next;
275 	struct ehci_qh *prev;
276 	struct ehci_qh *obj_next;
277 	struct usb_page_cache *page_cache;
278 	uint32_t qh_self;
279 } __aligned(EHCI_QH_ALIGN);
280 
281 typedef struct ehci_qh ehci_qh_t;
282 
283 /* Periodic Frame Span Traversal Node */
284 struct ehci_fstn {
285 	volatile uint32_t fstn_link;
286 	volatile uint32_t fstn_back;
287 } __aligned(EHCI_FSTN_ALIGN);
288 
289 typedef struct ehci_fstn ehci_fstn_t;
290 
291 struct ehci_hw_softc {
292 	struct usb_page_cache pframes_pc;
293 	struct usb_page_cache terminate_pc;
294 	struct usb_page_cache async_start_pc;
295 	struct usb_page_cache intr_start_pc[EHCI_VIRTUAL_FRAMELIST_COUNT];
296 	struct usb_page_cache isoc_hs_start_pc[EHCI_VIRTUAL_FRAMELIST_COUNT];
297 	struct usb_page_cache isoc_fs_start_pc[EHCI_VIRTUAL_FRAMELIST_COUNT];
298 
299 	struct usb_page pframes_pg;
300 	struct usb_page terminate_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 
307 struct ehci_config_desc {
308 	struct usb_config_descriptor confd;
309 	struct usb_interface_descriptor ifcd;
310 	struct usb_endpoint_descriptor endpd;
311 } __packed;
312 
313 union 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 
320 typedef struct ehci_softc {
321 	struct ehci_hw_softc sc_hw;
322 	struct usb_bus sc_bus;		/* base device */
323 	struct callout sc_tmo_pcd;
324 	struct callout sc_tmo_poll;
325 	union ehci_hub_desc sc_hub_desc;
326 
327 	struct usb_device *sc_devices[EHCI_MAX_DEVICES];
328 	struct resource *sc_io_res;
329 	struct resource *sc_irq_res;
330 	struct ehci_qh *sc_async_p_last;
331 	struct ehci_qh *sc_intr_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT];
332 	struct ehci_sitd *sc_isoc_fs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT];
333 	struct ehci_itd *sc_isoc_hs_p_last[EHCI_VIRTUAL_FRAMELIST_COUNT];
334 	void   *sc_intr_hdl;
335 	bus_size_t sc_io_size;
336 	bus_space_tag_t sc_io_tag;
337 	bus_space_handle_t sc_io_hdl;
338 
339 	uint32_t sc_terminate_self;	/* TD short packet termination pointer */
340 	uint32_t sc_eintrs; /* Interrupt mask */
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_NORESTERM	0x0004	/* don't terminate reset sequence */
346 #define	EHCI_SCFLG_BIGEDESC	0x0008	/* big-endian byte order descriptors */
347 #define	EHCI_SCFLG_TT		0x0020	/* transaction translator present */
348 #define	EHCI_SCFLG_LOSTINTRBUG	0x0040	/* workaround for VIA / ATI chipsets */
349 #define	EHCI_SCFLG_IAADBUG	0x0080	/* workaround for nVidia chipsets */
350 #define	EHCI_SCFLG_DONTRESET	0x0100	/* don't reset ctrl. in ehci_init() */
351 #define	EHCI_SCFLG_DONEINIT	0x1000	/* ehci_init() has been called. */
352 
353 	uint8_t	sc_offs;		/* offset to operational registers */
354 	uint8_t	sc_doorbell_disable;	/* set on doorbell failure */
355 	uint8_t	sc_noport;
356 	uint8_t	sc_addr;		/* device address */
357 	uint8_t	sc_conf;		/* device configuration */
358 	uint8_t	sc_isreset;
359 	uint8_t	sc_hub_idata[8];
360 
361 	char	sc_vendor[16];		/* vendor string for root hub */
362 
363 	void	(*sc_vendor_post_reset)(struct ehci_softc *sc);
364 	uint16_t (*sc_vendor_get_port_speed)(struct ehci_softc *sc, uint16_t index);
365 } ehci_softc_t;
366 
367 #define	EREAD1(sc, a)	bus_space_read_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (a))
368 #define	EREAD2(sc, a)	bus_space_read_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (a))
369 #define	EREAD4(sc, a)	bus_space_read_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (a))
370 #define	EWRITE1(sc, a, x)						\
371 	    bus_space_write_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (a), (x))
372 #define	EWRITE2(sc, a, x)						\
373 	    bus_space_write_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (a), (x))
374 #define	EWRITE4(sc, a, x)						\
375 	    bus_space_write_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (a), (x))
376 #define	EOREAD1(sc, a)							\
377 	    bus_space_read_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a))
378 #define	EOREAD2(sc, a)							\
379 	    bus_space_read_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a))
380 #define	EOREAD4(sc, a)							\
381 	    bus_space_read_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a))
382 #define	EOWRITE1(sc, a, x)						\
383 	    bus_space_write_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a), (x))
384 #define	EOWRITE2(sc, a, x)						\
385 	    bus_space_write_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a), (x))
386 #define	EOWRITE4(sc, a, x)						\
387 	    bus_space_write_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (sc)->sc_offs+(a), (x))
388 
389 #ifdef USB_EHCI_BIG_ENDIAN_DESC
390 /*
391  * Handle byte order conversion between host and ``host controller''.
392  * Typically the latter is little-endian but some controllers require
393  * big-endian in which case we may need to manually swap.
394  */
395 static __inline uint32_t
htohc32(const struct ehci_softc * sc,const uint32_t v)396 htohc32(const struct ehci_softc *sc, const uint32_t v)
397 {
398 	return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? htobe32(v) : htole32(v);
399 }
400 
401 static __inline uint16_t
htohc16(const struct ehci_softc * sc,const uint16_t v)402 htohc16(const struct ehci_softc *sc, const uint16_t v)
403 {
404 	return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? htobe16(v) : htole16(v);
405 }
406 
407 static __inline uint32_t
hc32toh(const struct ehci_softc * sc,const uint32_t v)408 hc32toh(const struct ehci_softc *sc, const uint32_t v)
409 {
410 	return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? be32toh(v) : le32toh(v);
411 }
412 
413 static __inline uint16_t
hc16toh(const struct ehci_softc * sc,const uint16_t v)414 hc16toh(const struct ehci_softc *sc, const uint16_t v)
415 {
416 	return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? be16toh(v) : le16toh(v);
417 }
418 #else
419 /*
420  * Normal little-endian only conversion routines.
421  */
422 static __inline uint32_t
htohc32(const struct ehci_softc * sc,const uint32_t v)423 htohc32(const struct ehci_softc *sc, const uint32_t v)
424 {
425 	return htole32(v);
426 }
427 
428 static __inline uint16_t
htohc16(const struct ehci_softc * sc,const uint16_t v)429 htohc16(const struct ehci_softc *sc, const uint16_t v)
430 {
431 	return htole16(v);
432 }
433 
434 static __inline uint32_t
hc32toh(const struct ehci_softc * sc,const uint32_t v)435 hc32toh(const struct ehci_softc *sc, const uint32_t v)
436 {
437 	return le32toh(v);
438 }
439 
440 static __inline uint16_t
hc16toh(const struct ehci_softc * sc,const uint16_t v)441 hc16toh(const struct ehci_softc *sc, const uint16_t v)
442 {
443 	return le16toh(v);
444 }
445 #endif
446 
447 usb_bus_mem_cb_t ehci_iterate_hw_softc;
448 
449 usb_error_t ehci_reset(ehci_softc_t *sc);
450 usb_error_t ehci_init(ehci_softc_t *sc);
451 void	ehci_detach(struct ehci_softc *sc);
452 void	ehci_interrupt(unsigned int irq, ehci_softc_t *sc);
453 uint16_t ehci_get_port_speed_portsc(struct ehci_softc *sc, uint16_t index);
454 uint16_t ehci_get_port_speed_hostc(struct ehci_softc *sc, uint16_t index);
455 
456 #endif					/* _EHCI_H_ */
457