xref: /freebsd/sys/dev/usb/controller/uhci.c (revision 83cadd7dccaa5c7f80a82a8557e1178cd1dc045d)
102ac6454SAndrew Thompson /*-
202ac6454SAndrew Thompson  * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
302ac6454SAndrew Thompson  * Copyright (c) 1998 The NetBSD Foundation, Inc. All rights reserved.
402ac6454SAndrew Thompson  * Copyright (c) 1998 Lennart Augustsson. All rights reserved.
502ac6454SAndrew Thompson  *
602ac6454SAndrew Thompson  * Redistribution and use in source and binary forms, with or without
702ac6454SAndrew Thompson  * modification, are permitted provided that the following conditions
802ac6454SAndrew Thompson  * are met:
902ac6454SAndrew Thompson  * 1. Redistributions of source code must retain the above copyright
1002ac6454SAndrew Thompson  *    notice, this list of conditions and the following disclaimer.
1102ac6454SAndrew Thompson  * 2. Redistributions in binary form must reproduce the above copyright
1202ac6454SAndrew Thompson  *    notice, this list of conditions and the following disclaimer in the
1302ac6454SAndrew Thompson  *    documentation and/or other materials provided with the distribution.
1402ac6454SAndrew Thompson  *
1502ac6454SAndrew Thompson  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1602ac6454SAndrew Thompson  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1702ac6454SAndrew Thompson  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1802ac6454SAndrew Thompson  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1902ac6454SAndrew Thompson  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2002ac6454SAndrew Thompson  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2102ac6454SAndrew Thompson  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2202ac6454SAndrew Thompson  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2302ac6454SAndrew Thompson  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2402ac6454SAndrew Thompson  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2502ac6454SAndrew Thompson  * SUCH DAMAGE.
2602ac6454SAndrew Thompson  */
2702ac6454SAndrew Thompson 
2802ac6454SAndrew Thompson #include <sys/cdefs.h>
2902ac6454SAndrew Thompson __FBSDID("$FreeBSD$");
3002ac6454SAndrew Thompson 
3102ac6454SAndrew Thompson /*
3202ac6454SAndrew Thompson  * USB Universal Host Controller driver.
3302ac6454SAndrew Thompson  * Handles e.g. PIIX3 and PIIX4.
3402ac6454SAndrew Thompson  *
3502ac6454SAndrew Thompson  * UHCI spec: http://developer.intel.com/design/USB/UHCI11D.htm
3602ac6454SAndrew Thompson  * USB spec:  http://www.usb.org/developers/docs/usbspec.zip
3702ac6454SAndrew Thompson  * PIIXn spec: ftp://download.intel.com/design/intarch/datashts/29055002.pdf
3802ac6454SAndrew Thompson  *             ftp://download.intel.com/design/intarch/datashts/29056201.pdf
3902ac6454SAndrew Thompson  */
4002ac6454SAndrew Thompson 
41ed6d949aSAndrew Thompson #include <sys/stdint.h>
42ed6d949aSAndrew Thompson #include <sys/stddef.h>
43ed6d949aSAndrew Thompson #include <sys/param.h>
44ed6d949aSAndrew Thompson #include <sys/queue.h>
45ed6d949aSAndrew Thompson #include <sys/types.h>
46ed6d949aSAndrew Thompson #include <sys/systm.h>
47ed6d949aSAndrew Thompson #include <sys/kernel.h>
48ed6d949aSAndrew Thompson #include <sys/bus.h>
49ed6d949aSAndrew Thompson #include <sys/module.h>
50ed6d949aSAndrew Thompson #include <sys/lock.h>
51ed6d949aSAndrew Thompson #include <sys/mutex.h>
52ed6d949aSAndrew Thompson #include <sys/condvar.h>
53ed6d949aSAndrew Thompson #include <sys/sysctl.h>
54ed6d949aSAndrew Thompson #include <sys/sx.h>
55ed6d949aSAndrew Thompson #include <sys/unistd.h>
56ed6d949aSAndrew Thompson #include <sys/callout.h>
57ed6d949aSAndrew Thompson #include <sys/malloc.h>
58ed6d949aSAndrew Thompson #include <sys/priv.h>
59ed6d949aSAndrew Thompson 
6002ac6454SAndrew Thompson #include <dev/usb/usb.h>
61ed6d949aSAndrew Thompson #include <dev/usb/usbdi.h>
6202ac6454SAndrew Thompson 
6302ac6454SAndrew Thompson #define	USB_DEBUG_VAR uhcidebug
6402ac6454SAndrew Thompson 
6502ac6454SAndrew Thompson #include <dev/usb/usb_core.h>
6602ac6454SAndrew Thompson #include <dev/usb/usb_debug.h>
6702ac6454SAndrew Thompson #include <dev/usb/usb_busdma.h>
6802ac6454SAndrew Thompson #include <dev/usb/usb_process.h>
6902ac6454SAndrew Thompson #include <dev/usb/usb_transfer.h>
7002ac6454SAndrew Thompson #include <dev/usb/usb_device.h>
7102ac6454SAndrew Thompson #include <dev/usb/usb_hub.h>
7202ac6454SAndrew Thompson #include <dev/usb/usb_util.h>
7302ac6454SAndrew Thompson 
7402ac6454SAndrew Thompson #include <dev/usb/usb_controller.h>
7502ac6454SAndrew Thompson #include <dev/usb/usb_bus.h>
7602ac6454SAndrew Thompson #include <dev/usb/controller/uhci.h>
771def609aSAndrew Thompson #include <dev/usb/controller/uhcireg.h>
7802ac6454SAndrew Thompson 
7902ac6454SAndrew Thompson #define	alt_next next
80578d0effSAndrew Thompson #define	UHCI_BUS2SC(bus) \
81578d0effSAndrew Thompson    ((uhci_softc_t *)(((uint8_t *)(bus)) - \
82578d0effSAndrew Thompson     ((uint8_t *)&(((uhci_softc_t *)0)->sc_bus))))
8302ac6454SAndrew Thompson 
84b850ecc1SAndrew Thompson #ifdef USB_DEBUG
8502ac6454SAndrew Thompson static int uhcidebug = 0;
8602ac6454SAndrew Thompson static int uhcinoloop = 0;
8702ac6454SAndrew Thompson 
886472ac3dSEd Schouten static SYSCTL_NODE(_hw_usb, OID_AUTO, uhci, CTLFLAG_RW, 0, "USB uhci");
89*83cadd7dSHans Petter Selasky SYSCTL_INT(_hw_usb_uhci, OID_AUTO, debug, CTLFLAG_RW | CTLFLAG_TUN,
9002ac6454SAndrew Thompson     &uhcidebug, 0, "uhci debug level");
91c13fd8d4SAndrew Thompson TUNABLE_INT("hw.usb.uhci.debug", &uhcidebug);
92*83cadd7dSHans Petter Selasky SYSCTL_INT(_hw_usb_uhci, OID_AUTO, loop, CTLFLAG_RW | CTLFLAG_TUN,
93*83cadd7dSHans Petter Selasky     &uhcinoloop, 0, "uhci noloop");
94c13fd8d4SAndrew Thompson TUNABLE_INT("hw.usb.uhci.loop", &uhcinoloop);
95c13fd8d4SAndrew Thompson 
9602ac6454SAndrew Thompson static void uhci_dumpregs(uhci_softc_t *sc);
9702ac6454SAndrew Thompson static void uhci_dump_tds(uhci_td_t *td);
9802ac6454SAndrew Thompson 
9902ac6454SAndrew Thompson #endif
10002ac6454SAndrew Thompson 
10102ac6454SAndrew Thompson #define	UBARR(sc) bus_space_barrier((sc)->sc_io_tag, (sc)->sc_io_hdl, 0, (sc)->sc_io_size, \
10202ac6454SAndrew Thompson 			BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE)
10302ac6454SAndrew Thompson #define	UWRITE1(sc, r, x) \
10402ac6454SAndrew Thompson  do { UBARR(sc); bus_space_write_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (r), (x)); \
10502ac6454SAndrew Thompson  } while (/*CONSTCOND*/0)
10602ac6454SAndrew Thompson #define	UWRITE2(sc, r, x) \
10702ac6454SAndrew Thompson  do { UBARR(sc); bus_space_write_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (r), (x)); \
10802ac6454SAndrew Thompson  } while (/*CONSTCOND*/0)
10902ac6454SAndrew Thompson #define	UWRITE4(sc, r, x) \
11002ac6454SAndrew Thompson  do { UBARR(sc); bus_space_write_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (r), (x)); \
11102ac6454SAndrew Thompson  } while (/*CONSTCOND*/0)
11202ac6454SAndrew Thompson #define	UREAD1(sc, r) (UBARR(sc), bus_space_read_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (r)))
11302ac6454SAndrew Thompson #define	UREAD2(sc, r) (UBARR(sc), bus_space_read_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (r)))
11402ac6454SAndrew Thompson #define	UREAD4(sc, r) (UBARR(sc), bus_space_read_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (r)))
11502ac6454SAndrew Thompson 
11602ac6454SAndrew Thompson #define	UHCICMD(sc, cmd) UWRITE2(sc, UHCI_CMD, cmd)
11702ac6454SAndrew Thompson #define	UHCISTS(sc) UREAD2(sc, UHCI_STS)
11802ac6454SAndrew Thompson 
11902ac6454SAndrew Thompson #define	UHCI_RESET_TIMEOUT 100		/* ms, reset timeout */
12002ac6454SAndrew Thompson 
12102ac6454SAndrew Thompson #define	UHCI_INTR_ENDPT 1
12202ac6454SAndrew Thompson 
12302ac6454SAndrew Thompson struct uhci_mem_layout {
12402ac6454SAndrew Thompson 
125760bc48eSAndrew Thompson 	struct usb_page_search buf_res;
126760bc48eSAndrew Thompson 	struct usb_page_search fix_res;
12702ac6454SAndrew Thompson 
128760bc48eSAndrew Thompson 	struct usb_page_cache *buf_pc;
129760bc48eSAndrew Thompson 	struct usb_page_cache *fix_pc;
13002ac6454SAndrew Thompson 
13102ac6454SAndrew Thompson 	uint32_t buf_offset;
13202ac6454SAndrew Thompson 
13302ac6454SAndrew Thompson 	uint16_t max_frame_size;
13402ac6454SAndrew Thompson };
13502ac6454SAndrew Thompson 
13602ac6454SAndrew Thompson struct uhci_std_temp {
13702ac6454SAndrew Thompson 
13802ac6454SAndrew Thompson 	struct uhci_mem_layout ml;
13902ac6454SAndrew Thompson 	uhci_td_t *td;
14002ac6454SAndrew Thompson 	uhci_td_t *td_next;
14102ac6454SAndrew Thompson 	uint32_t average;
14202ac6454SAndrew Thompson 	uint32_t td_status;
14302ac6454SAndrew Thompson 	uint32_t td_token;
14402ac6454SAndrew Thompson 	uint32_t len;
14502ac6454SAndrew Thompson 	uint16_t max_frame_size;
14602ac6454SAndrew Thompson 	uint8_t	shortpkt;
14702ac6454SAndrew Thompson 	uint8_t	setup_alt_next;
1480f7d4548SAndrew Thompson 	uint8_t	last_frame;
14902ac6454SAndrew Thompson };
15002ac6454SAndrew Thompson 
151760bc48eSAndrew Thompson extern struct usb_bus_methods uhci_bus_methods;
152760bc48eSAndrew Thompson extern struct usb_pipe_methods uhci_device_bulk_methods;
153760bc48eSAndrew Thompson extern struct usb_pipe_methods uhci_device_ctrl_methods;
154760bc48eSAndrew Thompson extern struct usb_pipe_methods uhci_device_intr_methods;
155760bc48eSAndrew Thompson extern struct usb_pipe_methods uhci_device_isoc_methods;
15602ac6454SAndrew Thompson 
157b9c81a5dSAndrew Thompson static uint8_t	uhci_restart(uhci_softc_t *sc);
158760bc48eSAndrew Thompson static void	uhci_do_poll(struct usb_bus *);
159e0a69b51SAndrew Thompson static void	uhci_device_done(struct usb_xfer *, usb_error_t);
160760bc48eSAndrew Thompson static void	uhci_transfer_intr_enqueue(struct usb_xfer *);
16102ac6454SAndrew Thompson static void	uhci_timeout(void *);
162760bc48eSAndrew Thompson static uint8_t	uhci_check_transfer(struct usb_xfer *);
16339307315SAndrew Thompson static void	uhci_root_intr(uhci_softc_t *sc);
16402ac6454SAndrew Thompson 
16502ac6454SAndrew Thompson void
166e0a69b51SAndrew Thompson uhci_iterate_hw_softc(struct usb_bus *bus, usb_bus_mem_sub_cb_t *cb)
16702ac6454SAndrew Thompson {
16802ac6454SAndrew Thompson 	struct uhci_softc *sc = UHCI_BUS2SC(bus);
16902ac6454SAndrew Thompson 	uint32_t i;
17002ac6454SAndrew Thompson 
17102ac6454SAndrew Thompson 	cb(bus, &sc->sc_hw.pframes_pc, &sc->sc_hw.pframes_pg,
17202ac6454SAndrew Thompson 	    sizeof(uint32_t) * UHCI_FRAMELIST_COUNT, UHCI_FRAMELIST_ALIGN);
17302ac6454SAndrew Thompson 
17402ac6454SAndrew Thompson 	cb(bus, &sc->sc_hw.ls_ctl_start_pc, &sc->sc_hw.ls_ctl_start_pg,
17502ac6454SAndrew Thompson 	    sizeof(uhci_qh_t), UHCI_QH_ALIGN);
17602ac6454SAndrew Thompson 
17702ac6454SAndrew Thompson 	cb(bus, &sc->sc_hw.fs_ctl_start_pc, &sc->sc_hw.fs_ctl_start_pg,
17802ac6454SAndrew Thompson 	    sizeof(uhci_qh_t), UHCI_QH_ALIGN);
17902ac6454SAndrew Thompson 
18002ac6454SAndrew Thompson 	cb(bus, &sc->sc_hw.bulk_start_pc, &sc->sc_hw.bulk_start_pg,
18102ac6454SAndrew Thompson 	    sizeof(uhci_qh_t), UHCI_QH_ALIGN);
18202ac6454SAndrew Thompson 
18302ac6454SAndrew Thompson 	cb(bus, &sc->sc_hw.last_qh_pc, &sc->sc_hw.last_qh_pg,
18402ac6454SAndrew Thompson 	    sizeof(uhci_qh_t), UHCI_QH_ALIGN);
18502ac6454SAndrew Thompson 
18602ac6454SAndrew Thompson 	cb(bus, &sc->sc_hw.last_td_pc, &sc->sc_hw.last_td_pg,
18702ac6454SAndrew Thompson 	    sizeof(uhci_td_t), UHCI_TD_ALIGN);
18802ac6454SAndrew Thompson 
18902ac6454SAndrew Thompson 	for (i = 0; i != UHCI_VFRAMELIST_COUNT; i++) {
19002ac6454SAndrew Thompson 		cb(bus, sc->sc_hw.isoc_start_pc + i,
19102ac6454SAndrew Thompson 		    sc->sc_hw.isoc_start_pg + i,
19202ac6454SAndrew Thompson 		    sizeof(uhci_td_t), UHCI_TD_ALIGN);
19302ac6454SAndrew Thompson 	}
19402ac6454SAndrew Thompson 
19502ac6454SAndrew Thompson 	for (i = 0; i != UHCI_IFRAMELIST_COUNT; i++) {
19602ac6454SAndrew Thompson 		cb(bus, sc->sc_hw.intr_start_pc + i,
19702ac6454SAndrew Thompson 		    sc->sc_hw.intr_start_pg + i,
19802ac6454SAndrew Thompson 		    sizeof(uhci_qh_t), UHCI_QH_ALIGN);
19902ac6454SAndrew Thompson 	}
20002ac6454SAndrew Thompson }
20102ac6454SAndrew Thompson 
20202ac6454SAndrew Thompson static void
203760bc48eSAndrew Thompson uhci_mem_layout_init(struct uhci_mem_layout *ml, struct usb_xfer *xfer)
20402ac6454SAndrew Thompson {
20502ac6454SAndrew Thompson 	ml->buf_pc = xfer->frbuffers + 0;
20602ac6454SAndrew Thompson 	ml->fix_pc = xfer->buf_fixup;
20702ac6454SAndrew Thompson 
20802ac6454SAndrew Thompson 	ml->buf_offset = 0;
20902ac6454SAndrew Thompson 
21002ac6454SAndrew Thompson 	ml->max_frame_size = xfer->max_frame_size;
21102ac6454SAndrew Thompson }
21202ac6454SAndrew Thompson 
21302ac6454SAndrew Thompson static void
21402ac6454SAndrew Thompson uhci_mem_layout_fixup(struct uhci_mem_layout *ml, struct uhci_td *td)
21502ac6454SAndrew Thompson {
216a593f6b8SAndrew Thompson 	usbd_get_page(ml->buf_pc, ml->buf_offset, &ml->buf_res);
21702ac6454SAndrew Thompson 
21802ac6454SAndrew Thompson 	if (ml->buf_res.length < td->len) {
21902ac6454SAndrew Thompson 
22002ac6454SAndrew Thompson 		/* need to do a fixup */
22102ac6454SAndrew Thompson 
222a593f6b8SAndrew Thompson 		usbd_get_page(ml->fix_pc, 0, &ml->fix_res);
22302ac6454SAndrew Thompson 
22402ac6454SAndrew Thompson 		td->td_buffer = htole32(ml->fix_res.physaddr);
22502ac6454SAndrew Thompson 
22602ac6454SAndrew Thompson 		/*
22702ac6454SAndrew Thompson 	         * The UHCI driver cannot handle
22802ac6454SAndrew Thompson 	         * page crossings, so a fixup is
22902ac6454SAndrew Thompson 	         * needed:
23002ac6454SAndrew Thompson 	         *
23102ac6454SAndrew Thompson 	         *  +----+----+ - - -
23202ac6454SAndrew Thompson 	         *  | YYY|Y   |
23302ac6454SAndrew Thompson 	         *  +----+----+ - - -
23402ac6454SAndrew Thompson 	         *     \    \
23502ac6454SAndrew Thompson 	         *      \    \
23602ac6454SAndrew Thompson 	         *       +----+
23702ac6454SAndrew Thompson 	         *       |YYYY|  (fixup)
23802ac6454SAndrew Thompson 	         *       +----+
23902ac6454SAndrew Thompson 	         */
24002ac6454SAndrew Thompson 
24102ac6454SAndrew Thompson 		if ((td->td_token & htole32(UHCI_TD_PID)) ==
24202ac6454SAndrew Thompson 		    htole32(UHCI_TD_PID_IN)) {
24302ac6454SAndrew Thompson 			td->fix_pc = ml->fix_pc;
244a593f6b8SAndrew Thompson 			usb_pc_cpu_invalidate(ml->fix_pc);
24502ac6454SAndrew Thompson 
24602ac6454SAndrew Thompson 		} else {
24702ac6454SAndrew Thompson 			td->fix_pc = NULL;
24802ac6454SAndrew Thompson 
24902ac6454SAndrew Thompson 			/* copy data to fixup location */
25002ac6454SAndrew Thompson 
251a593f6b8SAndrew Thompson 			usbd_copy_out(ml->buf_pc, ml->buf_offset,
25202ac6454SAndrew Thompson 			    ml->fix_res.buffer, td->len);
25302ac6454SAndrew Thompson 
254a593f6b8SAndrew Thompson 			usb_pc_cpu_flush(ml->fix_pc);
25502ac6454SAndrew Thompson 		}
25602ac6454SAndrew Thompson 
25702ac6454SAndrew Thompson 		/* prepare next fixup */
25802ac6454SAndrew Thompson 
25902ac6454SAndrew Thompson 		ml->fix_pc++;
26002ac6454SAndrew Thompson 
26102ac6454SAndrew Thompson 	} else {
26202ac6454SAndrew Thompson 
26302ac6454SAndrew Thompson 		td->td_buffer = htole32(ml->buf_res.physaddr);
26402ac6454SAndrew Thompson 		td->fix_pc = NULL;
26502ac6454SAndrew Thompson 	}
26602ac6454SAndrew Thompson 
26702ac6454SAndrew Thompson 	/* prepare next data location */
26802ac6454SAndrew Thompson 
26902ac6454SAndrew Thompson 	ml->buf_offset += td->len;
27002ac6454SAndrew Thompson }
27102ac6454SAndrew Thompson 
272b9c81a5dSAndrew Thompson /*
273b9c81a5dSAndrew Thompson  * Return values:
274b9c81a5dSAndrew Thompson  * 0: Success
275b9c81a5dSAndrew Thompson  * Else: Failure
276b9c81a5dSAndrew Thompson  */
277b9c81a5dSAndrew Thompson static uint8_t
278b9c81a5dSAndrew Thompson uhci_restart(uhci_softc_t *sc)
279b9c81a5dSAndrew Thompson {
280760bc48eSAndrew Thompson 	struct usb_page_search buf_res;
281b9c81a5dSAndrew Thompson 
282b9c81a5dSAndrew Thompson 	USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
283b9c81a5dSAndrew Thompson 
284b9c81a5dSAndrew Thompson   	if (UREAD2(sc, UHCI_CMD) & UHCI_CMD_RS) {
285b9c81a5dSAndrew Thompson 		DPRINTFN(2, "Already started\n");
286b9c81a5dSAndrew Thompson 		return (0);
287b9c81a5dSAndrew Thompson 	}
288b9c81a5dSAndrew Thompson 
289b9c81a5dSAndrew Thompson 	DPRINTFN(2, "Restarting\n");
290b9c81a5dSAndrew Thompson 
291a593f6b8SAndrew Thompson 	usbd_get_page(&sc->sc_hw.pframes_pc, 0, &buf_res);
292b9c81a5dSAndrew Thompson 
293b9c81a5dSAndrew Thompson 	/* Reload fresh base address */
294b9c81a5dSAndrew Thompson 	UWRITE4(sc, UHCI_FLBASEADDR, buf_res.physaddr);
295b9c81a5dSAndrew Thompson 
296b9c81a5dSAndrew Thompson 	/*
297b9c81a5dSAndrew Thompson 	 * Assume 64 byte packets at frame end and start HC controller:
298b9c81a5dSAndrew Thompson 	 */
299b9c81a5dSAndrew Thompson 	UHCICMD(sc, (UHCI_CMD_MAXP | UHCI_CMD_RS));
300b9c81a5dSAndrew Thompson 
301b9c81a5dSAndrew Thompson 	/* wait 10 milliseconds */
302b9c81a5dSAndrew Thompson 
303a593f6b8SAndrew Thompson 	usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 100);
304b9c81a5dSAndrew Thompson 
305b9c81a5dSAndrew Thompson 	/* check that controller has started */
306b9c81a5dSAndrew Thompson 
307b9c81a5dSAndrew Thompson 	if (UREAD2(sc, UHCI_STS) & UHCI_STS_HCH) {
308b9c81a5dSAndrew Thompson 		DPRINTFN(2, "Failed\n");
309b9c81a5dSAndrew Thompson 		return (1);
310b9c81a5dSAndrew Thompson 	}
311b9c81a5dSAndrew Thompson 	return (0);
312b9c81a5dSAndrew Thompson }
313b9c81a5dSAndrew Thompson 
31402ac6454SAndrew Thompson void
31502ac6454SAndrew Thompson uhci_reset(uhci_softc_t *sc)
31602ac6454SAndrew Thompson {
31702ac6454SAndrew Thompson 	uint16_t n;
31802ac6454SAndrew Thompson 
31902ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
32002ac6454SAndrew Thompson 
32102ac6454SAndrew Thompson 	DPRINTF("resetting the HC\n");
32202ac6454SAndrew Thompson 
32302ac6454SAndrew Thompson 	/* disable interrupts */
32402ac6454SAndrew Thompson 
32502ac6454SAndrew Thompson 	UWRITE2(sc, UHCI_INTR, 0);
32602ac6454SAndrew Thompson 
32702ac6454SAndrew Thompson 	/* global reset */
32802ac6454SAndrew Thompson 
32902ac6454SAndrew Thompson 	UHCICMD(sc, UHCI_CMD_GRESET);
33002ac6454SAndrew Thompson 
33102ac6454SAndrew Thompson 	/* wait */
33202ac6454SAndrew Thompson 
333a593f6b8SAndrew Thompson 	usb_pause_mtx(&sc->sc_bus.bus_mtx,
33402ac6454SAndrew Thompson 	    USB_MS_TO_TICKS(USB_BUS_RESET_DELAY));
33502ac6454SAndrew Thompson 
33602ac6454SAndrew Thompson 	/* terminate all transfers */
33702ac6454SAndrew Thompson 
33802ac6454SAndrew Thompson 	UHCICMD(sc, UHCI_CMD_HCRESET);
33902ac6454SAndrew Thompson 
34002ac6454SAndrew Thompson 	/* the reset bit goes low when the controller is done */
34102ac6454SAndrew Thompson 
34202ac6454SAndrew Thompson 	n = UHCI_RESET_TIMEOUT;
34302ac6454SAndrew Thompson 	while (n--) {
34402ac6454SAndrew Thompson 		/* wait one millisecond */
34502ac6454SAndrew Thompson 
346a593f6b8SAndrew Thompson 		usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 1000);
34702ac6454SAndrew Thompson 
34802ac6454SAndrew Thompson 		if (!(UREAD2(sc, UHCI_CMD) & UHCI_CMD_HCRESET)) {
34902ac6454SAndrew Thompson 			goto done_1;
35002ac6454SAndrew Thompson 		}
35102ac6454SAndrew Thompson 	}
35202ac6454SAndrew Thompson 
35302ac6454SAndrew Thompson 	device_printf(sc->sc_bus.bdev,
35402ac6454SAndrew Thompson 	    "controller did not reset\n");
35502ac6454SAndrew Thompson 
35602ac6454SAndrew Thompson done_1:
35702ac6454SAndrew Thompson 
35802ac6454SAndrew Thompson 	n = 10;
35902ac6454SAndrew Thompson 	while (n--) {
36002ac6454SAndrew Thompson 		/* wait one millisecond */
36102ac6454SAndrew Thompson 
362a593f6b8SAndrew Thompson 		usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 1000);
36302ac6454SAndrew Thompson 
36402ac6454SAndrew Thompson 		/* check if HC is stopped */
36502ac6454SAndrew Thompson 		if (UREAD2(sc, UHCI_STS) & UHCI_STS_HCH) {
36602ac6454SAndrew Thompson 			goto done_2;
36702ac6454SAndrew Thompson 		}
36802ac6454SAndrew Thompson 	}
36902ac6454SAndrew Thompson 
37002ac6454SAndrew Thompson 	device_printf(sc->sc_bus.bdev,
37102ac6454SAndrew Thompson 	    "controller did not stop\n");
37202ac6454SAndrew Thompson 
37302ac6454SAndrew Thompson done_2:
37402ac6454SAndrew Thompson 
3752e141748SHans Petter Selasky 	/* reset frame number */
3762e141748SHans Petter Selasky 	UWRITE2(sc, UHCI_FRNUM, 0);
3772e141748SHans Petter Selasky 	/* set default SOF value */
3782e141748SHans Petter Selasky 	UWRITE1(sc, UHCI_SOF, 0x40);
37939307315SAndrew Thompson 
38039307315SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
38139307315SAndrew Thompson 
38239307315SAndrew Thompson 	/* stop root interrupt */
383a593f6b8SAndrew Thompson 	usb_callout_drain(&sc->sc_root_intr);
38439307315SAndrew Thompson 
38539307315SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
38602ac6454SAndrew Thompson }
38702ac6454SAndrew Thompson 
38802ac6454SAndrew Thompson static void
38902ac6454SAndrew Thompson uhci_start(uhci_softc_t *sc)
39002ac6454SAndrew Thompson {
39102ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
39202ac6454SAndrew Thompson 
39302ac6454SAndrew Thompson 	DPRINTFN(2, "enabling\n");
39402ac6454SAndrew Thompson 
39502ac6454SAndrew Thompson 	/* enable interrupts */
39602ac6454SAndrew Thompson 
39702ac6454SAndrew Thompson 	UWRITE2(sc, UHCI_INTR,
39802ac6454SAndrew Thompson 	    (UHCI_INTR_TOCRCIE |
39902ac6454SAndrew Thompson 	    UHCI_INTR_RIE |
40002ac6454SAndrew Thompson 	    UHCI_INTR_IOCE |
40102ac6454SAndrew Thompson 	    UHCI_INTR_SPIE));
40202ac6454SAndrew Thompson 
403b9c81a5dSAndrew Thompson 	if (uhci_restart(sc)) {
40402ac6454SAndrew Thompson 		device_printf(sc->sc_bus.bdev,
40502ac6454SAndrew Thompson 		    "cannot start HC controller\n");
406b9c81a5dSAndrew Thompson 	}
40702ac6454SAndrew Thompson 
40839307315SAndrew Thompson 	/* start root interrupt */
40939307315SAndrew Thompson 	uhci_root_intr(sc);
41002ac6454SAndrew Thompson }
41102ac6454SAndrew Thompson 
41202ac6454SAndrew Thompson static struct uhci_qh *
413760bc48eSAndrew Thompson uhci_init_qh(struct usb_page_cache *pc)
41402ac6454SAndrew Thompson {
415760bc48eSAndrew Thompson 	struct usb_page_search buf_res;
41602ac6454SAndrew Thompson 	struct uhci_qh *qh;
41702ac6454SAndrew Thompson 
418a593f6b8SAndrew Thompson 	usbd_get_page(pc, 0, &buf_res);
41902ac6454SAndrew Thompson 
42002ac6454SAndrew Thompson 	qh = buf_res.buffer;
42102ac6454SAndrew Thompson 
42202ac6454SAndrew Thompson 	qh->qh_self =
42302ac6454SAndrew Thompson 	    htole32(buf_res.physaddr) |
42402ac6454SAndrew Thompson 	    htole32(UHCI_PTR_QH);
42502ac6454SAndrew Thompson 
42602ac6454SAndrew Thompson 	qh->page_cache = pc;
42702ac6454SAndrew Thompson 
42802ac6454SAndrew Thompson 	return (qh);
42902ac6454SAndrew Thompson }
43002ac6454SAndrew Thompson 
43102ac6454SAndrew Thompson static struct uhci_td *
432760bc48eSAndrew Thompson uhci_init_td(struct usb_page_cache *pc)
43302ac6454SAndrew Thompson {
434760bc48eSAndrew Thompson 	struct usb_page_search buf_res;
43502ac6454SAndrew Thompson 	struct uhci_td *td;
43602ac6454SAndrew Thompson 
437a593f6b8SAndrew Thompson 	usbd_get_page(pc, 0, &buf_res);
43802ac6454SAndrew Thompson 
43902ac6454SAndrew Thompson 	td = buf_res.buffer;
44002ac6454SAndrew Thompson 
44102ac6454SAndrew Thompson 	td->td_self =
44202ac6454SAndrew Thompson 	    htole32(buf_res.physaddr) |
44302ac6454SAndrew Thompson 	    htole32(UHCI_PTR_TD);
44402ac6454SAndrew Thompson 
44502ac6454SAndrew Thompson 	td->page_cache = pc;
44602ac6454SAndrew Thompson 
44702ac6454SAndrew Thompson 	return (td);
44802ac6454SAndrew Thompson }
44902ac6454SAndrew Thompson 
450e0a69b51SAndrew Thompson usb_error_t
45102ac6454SAndrew Thompson uhci_init(uhci_softc_t *sc)
45202ac6454SAndrew Thompson {
45302ac6454SAndrew Thompson 	uint16_t bit;
45402ac6454SAndrew Thompson 	uint16_t x;
45502ac6454SAndrew Thompson 	uint16_t y;
45602ac6454SAndrew Thompson 
45702ac6454SAndrew Thompson 	DPRINTF("start\n");
45802ac6454SAndrew Thompson 
459a593f6b8SAndrew Thompson 	usb_callout_init_mtx(&sc->sc_root_intr, &sc->sc_bus.bus_mtx, 0);
46039307315SAndrew Thompson 
461b850ecc1SAndrew Thompson #ifdef USB_DEBUG
46202ac6454SAndrew Thompson 	if (uhcidebug > 2) {
46302ac6454SAndrew Thompson 		uhci_dumpregs(sc);
46402ac6454SAndrew Thompson 	}
46502ac6454SAndrew Thompson #endif
46602ac6454SAndrew Thompson 	/*
46702ac6454SAndrew Thompson 	 * Setup QH's
46802ac6454SAndrew Thompson 	 */
46902ac6454SAndrew Thompson 	sc->sc_ls_ctl_p_last =
47002ac6454SAndrew Thompson 	    uhci_init_qh(&sc->sc_hw.ls_ctl_start_pc);
47102ac6454SAndrew Thompson 
47202ac6454SAndrew Thompson 	sc->sc_fs_ctl_p_last =
47302ac6454SAndrew Thompson 	    uhci_init_qh(&sc->sc_hw.fs_ctl_start_pc);
47402ac6454SAndrew Thompson 
47502ac6454SAndrew Thompson 	sc->sc_bulk_p_last =
47602ac6454SAndrew Thompson 	    uhci_init_qh(&sc->sc_hw.bulk_start_pc);
47702ac6454SAndrew Thompson #if 0
47802ac6454SAndrew Thompson 	sc->sc_reclaim_qh_p =
47902ac6454SAndrew Thompson 	    sc->sc_fs_ctl_p_last;
48002ac6454SAndrew Thompson #else
48102ac6454SAndrew Thompson 	/* setup reclaim looping point */
48202ac6454SAndrew Thompson 	sc->sc_reclaim_qh_p =
48302ac6454SAndrew Thompson 	    sc->sc_bulk_p_last;
48402ac6454SAndrew Thompson #endif
48502ac6454SAndrew Thompson 
48602ac6454SAndrew Thompson 	sc->sc_last_qh_p =
48702ac6454SAndrew Thompson 	    uhci_init_qh(&sc->sc_hw.last_qh_pc);
48802ac6454SAndrew Thompson 
48902ac6454SAndrew Thompson 	sc->sc_last_td_p =
49002ac6454SAndrew Thompson 	    uhci_init_td(&sc->sc_hw.last_td_pc);
49102ac6454SAndrew Thompson 
49202ac6454SAndrew Thompson 	for (x = 0; x != UHCI_VFRAMELIST_COUNT; x++) {
49302ac6454SAndrew Thompson 		sc->sc_isoc_p_last[x] =
49402ac6454SAndrew Thompson 		    uhci_init_td(sc->sc_hw.isoc_start_pc + x);
49502ac6454SAndrew Thompson 	}
49602ac6454SAndrew Thompson 
49702ac6454SAndrew Thompson 	for (x = 0; x != UHCI_IFRAMELIST_COUNT; x++) {
49802ac6454SAndrew Thompson 		sc->sc_intr_p_last[x] =
49902ac6454SAndrew Thompson 		    uhci_init_qh(sc->sc_hw.intr_start_pc + x);
50002ac6454SAndrew Thompson 	}
50102ac6454SAndrew Thompson 
50202ac6454SAndrew Thompson 	/*
50302ac6454SAndrew Thompson 	 * the QHs are arranged to give poll intervals that are
50402ac6454SAndrew Thompson 	 * powers of 2 times 1ms
50502ac6454SAndrew Thompson 	 */
50602ac6454SAndrew Thompson 	bit = UHCI_IFRAMELIST_COUNT / 2;
50702ac6454SAndrew Thompson 	while (bit) {
50802ac6454SAndrew Thompson 		x = bit;
50902ac6454SAndrew Thompson 		while (x & bit) {
51002ac6454SAndrew Thompson 			uhci_qh_t *qh_x;
51102ac6454SAndrew Thompson 			uhci_qh_t *qh_y;
51202ac6454SAndrew Thompson 
51302ac6454SAndrew Thompson 			y = (x ^ bit) | (bit / 2);
51402ac6454SAndrew Thompson 
51502ac6454SAndrew Thompson 			/*
51602ac6454SAndrew Thompson 			 * the next QH has half the poll interval
51702ac6454SAndrew Thompson 			 */
51802ac6454SAndrew Thompson 			qh_x = sc->sc_intr_p_last[x];
51902ac6454SAndrew Thompson 			qh_y = sc->sc_intr_p_last[y];
52002ac6454SAndrew Thompson 
52102ac6454SAndrew Thompson 			qh_x->h_next = NULL;
52202ac6454SAndrew Thompson 			qh_x->qh_h_next = qh_y->qh_self;
52302ac6454SAndrew Thompson 			qh_x->e_next = NULL;
52402ac6454SAndrew Thompson 			qh_x->qh_e_next = htole32(UHCI_PTR_T);
52502ac6454SAndrew Thompson 			x++;
52602ac6454SAndrew Thompson 		}
52702ac6454SAndrew Thompson 		bit >>= 1;
52802ac6454SAndrew Thompson 	}
52902ac6454SAndrew Thompson 
53002ac6454SAndrew Thompson 	if (1) {
53102ac6454SAndrew Thompson 		uhci_qh_t *qh_ls;
53202ac6454SAndrew Thompson 		uhci_qh_t *qh_intr;
53302ac6454SAndrew Thompson 
53402ac6454SAndrew Thompson 		qh_ls = sc->sc_ls_ctl_p_last;
53502ac6454SAndrew Thompson 		qh_intr = sc->sc_intr_p_last[0];
53602ac6454SAndrew Thompson 
53702ac6454SAndrew Thompson 		/* start QH for interrupt traffic */
53802ac6454SAndrew Thompson 		qh_intr->h_next = qh_ls;
53902ac6454SAndrew Thompson 		qh_intr->qh_h_next = qh_ls->qh_self;
54002ac6454SAndrew Thompson 		qh_intr->e_next = 0;
54102ac6454SAndrew Thompson 		qh_intr->qh_e_next = htole32(UHCI_PTR_T);
54202ac6454SAndrew Thompson 	}
54302ac6454SAndrew Thompson 	for (x = 0; x != UHCI_VFRAMELIST_COUNT; x++) {
54402ac6454SAndrew Thompson 
54502ac6454SAndrew Thompson 		uhci_td_t *td_x;
54602ac6454SAndrew Thompson 		uhci_qh_t *qh_intr;
54702ac6454SAndrew Thompson 
54802ac6454SAndrew Thompson 		td_x = sc->sc_isoc_p_last[x];
54902ac6454SAndrew Thompson 		qh_intr = sc->sc_intr_p_last[x | (UHCI_IFRAMELIST_COUNT / 2)];
55002ac6454SAndrew Thompson 
55102ac6454SAndrew Thompson 		/* start TD for isochronous traffic */
55202ac6454SAndrew Thompson 		td_x->next = NULL;
55302ac6454SAndrew Thompson 		td_x->td_next = qh_intr->qh_self;
55402ac6454SAndrew Thompson 		td_x->td_status = htole32(UHCI_TD_IOS);
55502ac6454SAndrew Thompson 		td_x->td_token = htole32(0);
55602ac6454SAndrew Thompson 		td_x->td_buffer = htole32(0);
55702ac6454SAndrew Thompson 	}
55802ac6454SAndrew Thompson 
55902ac6454SAndrew Thompson 	if (1) {
56002ac6454SAndrew Thompson 		uhci_qh_t *qh_ls;
56102ac6454SAndrew Thompson 		uhci_qh_t *qh_fs;
56202ac6454SAndrew Thompson 
56302ac6454SAndrew Thompson 		qh_ls = sc->sc_ls_ctl_p_last;
56402ac6454SAndrew Thompson 		qh_fs = sc->sc_fs_ctl_p_last;
56502ac6454SAndrew Thompson 
56602ac6454SAndrew Thompson 		/* start QH where low speed control traffic will be queued */
56702ac6454SAndrew Thompson 		qh_ls->h_next = qh_fs;
56802ac6454SAndrew Thompson 		qh_ls->qh_h_next = qh_fs->qh_self;
56902ac6454SAndrew Thompson 		qh_ls->e_next = 0;
57002ac6454SAndrew Thompson 		qh_ls->qh_e_next = htole32(UHCI_PTR_T);
57102ac6454SAndrew Thompson 	}
57202ac6454SAndrew Thompson 	if (1) {
57302ac6454SAndrew Thompson 		uhci_qh_t *qh_ctl;
57402ac6454SAndrew Thompson 		uhci_qh_t *qh_blk;
57502ac6454SAndrew Thompson 		uhci_qh_t *qh_lst;
57602ac6454SAndrew Thompson 		uhci_td_t *td_lst;
57702ac6454SAndrew Thompson 
57802ac6454SAndrew Thompson 		qh_ctl = sc->sc_fs_ctl_p_last;
57902ac6454SAndrew Thompson 		qh_blk = sc->sc_bulk_p_last;
58002ac6454SAndrew Thompson 
58102ac6454SAndrew Thompson 		/* start QH where full speed control traffic will be queued */
58202ac6454SAndrew Thompson 		qh_ctl->h_next = qh_blk;
58302ac6454SAndrew Thompson 		qh_ctl->qh_h_next = qh_blk->qh_self;
58402ac6454SAndrew Thompson 		qh_ctl->e_next = 0;
58502ac6454SAndrew Thompson 		qh_ctl->qh_e_next = htole32(UHCI_PTR_T);
58602ac6454SAndrew Thompson 
58702ac6454SAndrew Thompson 		qh_lst = sc->sc_last_qh_p;
58802ac6454SAndrew Thompson 
58902ac6454SAndrew Thompson 		/* start QH where bulk traffic will be queued */
59002ac6454SAndrew Thompson 		qh_blk->h_next = qh_lst;
59102ac6454SAndrew Thompson 		qh_blk->qh_h_next = qh_lst->qh_self;
59202ac6454SAndrew Thompson 		qh_blk->e_next = 0;
59302ac6454SAndrew Thompson 		qh_blk->qh_e_next = htole32(UHCI_PTR_T);
59402ac6454SAndrew Thompson 
59502ac6454SAndrew Thompson 		td_lst = sc->sc_last_td_p;
59602ac6454SAndrew Thompson 
59702ac6454SAndrew Thompson 		/* end QH which is used for looping the QHs */
59802ac6454SAndrew Thompson 		qh_lst->h_next = 0;
59902ac6454SAndrew Thompson 		qh_lst->qh_h_next = htole32(UHCI_PTR_T);	/* end of QH chain */
60002ac6454SAndrew Thompson 		qh_lst->e_next = td_lst;
60102ac6454SAndrew Thompson 		qh_lst->qh_e_next = td_lst->td_self;
60202ac6454SAndrew Thompson 
60302ac6454SAndrew Thompson 		/*
60402ac6454SAndrew Thompson 		 * end TD which hangs from the last QH, to avoid a bug in the PIIX
60502ac6454SAndrew Thompson 		 * that makes it run berserk otherwise
60602ac6454SAndrew Thompson 		 */
60702ac6454SAndrew Thompson 		td_lst->next = 0;
60802ac6454SAndrew Thompson 		td_lst->td_next = htole32(UHCI_PTR_T);
60902ac6454SAndrew Thompson 		td_lst->td_status = htole32(0);	/* inactive */
61002ac6454SAndrew Thompson 		td_lst->td_token = htole32(0);
61102ac6454SAndrew Thompson 		td_lst->td_buffer = htole32(0);
61202ac6454SAndrew Thompson 	}
61302ac6454SAndrew Thompson 	if (1) {
614760bc48eSAndrew Thompson 		struct usb_page_search buf_res;
61502ac6454SAndrew Thompson 		uint32_t *pframes;
61602ac6454SAndrew Thompson 
617a593f6b8SAndrew Thompson 		usbd_get_page(&sc->sc_hw.pframes_pc, 0, &buf_res);
61802ac6454SAndrew Thompson 
61902ac6454SAndrew Thompson 		pframes = buf_res.buffer;
62002ac6454SAndrew Thompson 
62102ac6454SAndrew Thompson 
62202ac6454SAndrew Thompson 		/*
62302ac6454SAndrew Thompson 		 * Setup UHCI framelist
62402ac6454SAndrew Thompson 		 *
62502ac6454SAndrew Thompson 		 * Execution order:
62602ac6454SAndrew Thompson 		 *
62702ac6454SAndrew Thompson 		 * pframes -> full speed isochronous -> interrupt QH's -> low
62802ac6454SAndrew Thompson 		 * speed control -> full speed control -> bulk transfers
62902ac6454SAndrew Thompson 		 *
63002ac6454SAndrew Thompson 		 */
63102ac6454SAndrew Thompson 
63202ac6454SAndrew Thompson 		for (x = 0; x != UHCI_FRAMELIST_COUNT; x++) {
63302ac6454SAndrew Thompson 			pframes[x] =
63402ac6454SAndrew Thompson 			    sc->sc_isoc_p_last[x % UHCI_VFRAMELIST_COUNT]->td_self;
63502ac6454SAndrew Thompson 		}
63602ac6454SAndrew Thompson 	}
63702ac6454SAndrew Thompson 	/* flush all cache into memory */
63802ac6454SAndrew Thompson 
639a593f6b8SAndrew Thompson 	usb_bus_mem_flush_all(&sc->sc_bus, &uhci_iterate_hw_softc);
64002ac6454SAndrew Thompson 
64102ac6454SAndrew Thompson 	/* set up the bus struct */
64202ac6454SAndrew Thompson 	sc->sc_bus.methods = &uhci_bus_methods;
64302ac6454SAndrew Thompson 
64402ac6454SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
64502ac6454SAndrew Thompson 	/* reset the controller */
64602ac6454SAndrew Thompson 	uhci_reset(sc);
64702ac6454SAndrew Thompson 
64802ac6454SAndrew Thompson 	/* start the controller */
64902ac6454SAndrew Thompson 	uhci_start(sc);
65002ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
65102ac6454SAndrew Thompson 
65202ac6454SAndrew Thompson 	/* catch lost interrupts */
65302ac6454SAndrew Thompson 	uhci_do_poll(&sc->sc_bus);
65402ac6454SAndrew Thompson 
65502ac6454SAndrew Thompson 	return (0);
65602ac6454SAndrew Thompson }
65702ac6454SAndrew Thompson 
6582e141748SHans Petter Selasky static void
65902ac6454SAndrew Thompson uhci_suspend(uhci_softc_t *sc)
66002ac6454SAndrew Thompson {
661b850ecc1SAndrew Thompson #ifdef USB_DEBUG
66202ac6454SAndrew Thompson 	if (uhcidebug > 2) {
66302ac6454SAndrew Thompson 		uhci_dumpregs(sc);
66402ac6454SAndrew Thompson 	}
66502ac6454SAndrew Thompson #endif
66602ac6454SAndrew Thompson 
6672e141748SHans Petter Selasky 	USB_BUS_LOCK(&sc->sc_bus);
66802ac6454SAndrew Thompson 
66902ac6454SAndrew Thompson 	/* stop the controller */
67002ac6454SAndrew Thompson 
67102ac6454SAndrew Thompson 	uhci_reset(sc);
67202ac6454SAndrew Thompson 
67302ac6454SAndrew Thompson 	/* enter global suspend */
67402ac6454SAndrew Thompson 
67502ac6454SAndrew Thompson 	UHCICMD(sc, UHCI_CMD_EGSM);
67602ac6454SAndrew Thompson 
67702ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
67802ac6454SAndrew Thompson }
67902ac6454SAndrew Thompson 
6802e141748SHans Petter Selasky static void
68102ac6454SAndrew Thompson uhci_resume(uhci_softc_t *sc)
68202ac6454SAndrew Thompson {
68302ac6454SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
68402ac6454SAndrew Thompson 
68502ac6454SAndrew Thompson 	/* reset the controller */
68602ac6454SAndrew Thompson 
68702ac6454SAndrew Thompson 	uhci_reset(sc);
68802ac6454SAndrew Thompson 
68902ac6454SAndrew Thompson 	/* force global resume */
69002ac6454SAndrew Thompson 
69102ac6454SAndrew Thompson 	UHCICMD(sc, UHCI_CMD_FGR);
69202ac6454SAndrew Thompson 
69302ac6454SAndrew Thompson 	/* and start traffic again */
69402ac6454SAndrew Thompson 
69502ac6454SAndrew Thompson 	uhci_start(sc);
69602ac6454SAndrew Thompson 
69702ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
69802ac6454SAndrew Thompson 
6992e141748SHans Petter Selasky #ifdef USB_DEBUG
7002e141748SHans Petter Selasky 	if (uhcidebug > 2)
7012e141748SHans Petter Selasky 		uhci_dumpregs(sc);
7022e141748SHans Petter Selasky #endif
7032e141748SHans Petter Selasky 
70402ac6454SAndrew Thompson 	/* catch lost interrupts */
70502ac6454SAndrew Thompson 	uhci_do_poll(&sc->sc_bus);
70602ac6454SAndrew Thompson }
70702ac6454SAndrew Thompson 
708b850ecc1SAndrew Thompson #ifdef USB_DEBUG
70902ac6454SAndrew Thompson static void
71002ac6454SAndrew Thompson uhci_dumpregs(uhci_softc_t *sc)
71102ac6454SAndrew Thompson {
71202ac6454SAndrew Thompson 	DPRINTFN(0, "%s regs: cmd=%04x, sts=%04x, intr=%04x, frnum=%04x, "
71302ac6454SAndrew Thompson 	    "flbase=%08x, sof=%04x, portsc1=%04x, portsc2=%04x\n",
71402ac6454SAndrew Thompson 	    device_get_nameunit(sc->sc_bus.bdev),
71502ac6454SAndrew Thompson 	    UREAD2(sc, UHCI_CMD),
71602ac6454SAndrew Thompson 	    UREAD2(sc, UHCI_STS),
71702ac6454SAndrew Thompson 	    UREAD2(sc, UHCI_INTR),
71802ac6454SAndrew Thompson 	    UREAD2(sc, UHCI_FRNUM),
71902ac6454SAndrew Thompson 	    UREAD4(sc, UHCI_FLBASEADDR),
72002ac6454SAndrew Thompson 	    UREAD1(sc, UHCI_SOF),
72102ac6454SAndrew Thompson 	    UREAD2(sc, UHCI_PORTSC1),
72202ac6454SAndrew Thompson 	    UREAD2(sc, UHCI_PORTSC2));
72302ac6454SAndrew Thompson }
72402ac6454SAndrew Thompson 
72502ac6454SAndrew Thompson static uint8_t
72602ac6454SAndrew Thompson uhci_dump_td(uhci_td_t *p)
72702ac6454SAndrew Thompson {
72802ac6454SAndrew Thompson 	uint32_t td_next;
72902ac6454SAndrew Thompson 	uint32_t td_status;
73002ac6454SAndrew Thompson 	uint32_t td_token;
73102ac6454SAndrew Thompson 	uint8_t temp;
73202ac6454SAndrew Thompson 
733a593f6b8SAndrew Thompson 	usb_pc_cpu_invalidate(p->page_cache);
73402ac6454SAndrew Thompson 
73502ac6454SAndrew Thompson 	td_next = le32toh(p->td_next);
73602ac6454SAndrew Thompson 	td_status = le32toh(p->td_status);
73702ac6454SAndrew Thompson 	td_token = le32toh(p->td_token);
73802ac6454SAndrew Thompson 
73902ac6454SAndrew Thompson 	/*
74002ac6454SAndrew Thompson 	 * Check whether the link pointer in this TD marks the link pointer
74102ac6454SAndrew Thompson 	 * as end of queue:
74202ac6454SAndrew Thompson 	 */
74302ac6454SAndrew Thompson 	temp = ((td_next & UHCI_PTR_T) || (td_next == 0));
74402ac6454SAndrew Thompson 
74502ac6454SAndrew Thompson 	printf("TD(%p) at 0x%08x = link=0x%08x status=0x%08x "
74602ac6454SAndrew Thompson 	    "token=0x%08x buffer=0x%08x\n",
74702ac6454SAndrew Thompson 	    p,
74802ac6454SAndrew Thompson 	    le32toh(p->td_self),
74902ac6454SAndrew Thompson 	    td_next,
75002ac6454SAndrew Thompson 	    td_status,
75102ac6454SAndrew Thompson 	    td_token,
75202ac6454SAndrew Thompson 	    le32toh(p->td_buffer));
75302ac6454SAndrew Thompson 
75402ac6454SAndrew Thompson 	printf("TD(%p) td_next=%s%s%s td_status=%s%s%s%s%s%s%s%s%s%s%s, errcnt=%d, actlen=%d pid=%02x,"
75502ac6454SAndrew Thompson 	    "addr=%d,endpt=%d,D=%d,maxlen=%d\n",
75602ac6454SAndrew Thompson 	    p,
75702ac6454SAndrew Thompson 	    (td_next & 1) ? "-T" : "",
75802ac6454SAndrew Thompson 	    (td_next & 2) ? "-Q" : "",
75902ac6454SAndrew Thompson 	    (td_next & 4) ? "-VF" : "",
76002ac6454SAndrew Thompson 	    (td_status & UHCI_TD_BITSTUFF) ? "-BITSTUFF" : "",
76102ac6454SAndrew Thompson 	    (td_status & UHCI_TD_CRCTO) ? "-CRCTO" : "",
76202ac6454SAndrew Thompson 	    (td_status & UHCI_TD_NAK) ? "-NAK" : "",
76302ac6454SAndrew Thompson 	    (td_status & UHCI_TD_BABBLE) ? "-BABBLE" : "",
76402ac6454SAndrew Thompson 	    (td_status & UHCI_TD_DBUFFER) ? "-DBUFFER" : "",
76502ac6454SAndrew Thompson 	    (td_status & UHCI_TD_STALLED) ? "-STALLED" : "",
76602ac6454SAndrew Thompson 	    (td_status & UHCI_TD_ACTIVE) ? "-ACTIVE" : "",
76702ac6454SAndrew Thompson 	    (td_status & UHCI_TD_IOC) ? "-IOC" : "",
76802ac6454SAndrew Thompson 	    (td_status & UHCI_TD_IOS) ? "-IOS" : "",
76902ac6454SAndrew Thompson 	    (td_status & UHCI_TD_LS) ? "-LS" : "",
77002ac6454SAndrew Thompson 	    (td_status & UHCI_TD_SPD) ? "-SPD" : "",
77102ac6454SAndrew Thompson 	    UHCI_TD_GET_ERRCNT(td_status),
77202ac6454SAndrew Thompson 	    UHCI_TD_GET_ACTLEN(td_status),
77302ac6454SAndrew Thompson 	    UHCI_TD_GET_PID(td_token),
77402ac6454SAndrew Thompson 	    UHCI_TD_GET_DEVADDR(td_token),
77502ac6454SAndrew Thompson 	    UHCI_TD_GET_ENDPT(td_token),
77602ac6454SAndrew Thompson 	    UHCI_TD_GET_DT(td_token),
77702ac6454SAndrew Thompson 	    UHCI_TD_GET_MAXLEN(td_token));
77802ac6454SAndrew Thompson 
77902ac6454SAndrew Thompson 	return (temp);
78002ac6454SAndrew Thompson }
78102ac6454SAndrew Thompson 
78202ac6454SAndrew Thompson static uint8_t
78302ac6454SAndrew Thompson uhci_dump_qh(uhci_qh_t *sqh)
78402ac6454SAndrew Thompson {
78502ac6454SAndrew Thompson 	uint8_t temp;
78602ac6454SAndrew Thompson 	uint32_t qh_h_next;
78702ac6454SAndrew Thompson 	uint32_t qh_e_next;
78802ac6454SAndrew Thompson 
789a593f6b8SAndrew Thompson 	usb_pc_cpu_invalidate(sqh->page_cache);
79002ac6454SAndrew Thompson 
79102ac6454SAndrew Thompson 	qh_h_next = le32toh(sqh->qh_h_next);
79202ac6454SAndrew Thompson 	qh_e_next = le32toh(sqh->qh_e_next);
79302ac6454SAndrew Thompson 
79402ac6454SAndrew Thompson 	DPRINTFN(0, "QH(%p) at 0x%08x: h_next=0x%08x e_next=0x%08x\n", sqh,
79502ac6454SAndrew Thompson 	    le32toh(sqh->qh_self), qh_h_next, qh_e_next);
79602ac6454SAndrew Thompson 
79702ac6454SAndrew Thompson 	temp = ((((sqh->h_next != NULL) && !(qh_h_next & UHCI_PTR_T)) ? 1 : 0) |
79802ac6454SAndrew Thompson 	    (((sqh->e_next != NULL) && !(qh_e_next & UHCI_PTR_T)) ? 2 : 0));
79902ac6454SAndrew Thompson 
80002ac6454SAndrew Thompson 	return (temp);
80102ac6454SAndrew Thompson }
80202ac6454SAndrew Thompson 
80302ac6454SAndrew Thompson static void
80402ac6454SAndrew Thompson uhci_dump_all(uhci_softc_t *sc)
80502ac6454SAndrew Thompson {
80602ac6454SAndrew Thompson 	uhci_dumpregs(sc);
80702ac6454SAndrew Thompson 	uhci_dump_qh(sc->sc_ls_ctl_p_last);
80802ac6454SAndrew Thompson 	uhci_dump_qh(sc->sc_fs_ctl_p_last);
80902ac6454SAndrew Thompson 	uhci_dump_qh(sc->sc_bulk_p_last);
81002ac6454SAndrew Thompson 	uhci_dump_qh(sc->sc_last_qh_p);
81102ac6454SAndrew Thompson }
81202ac6454SAndrew Thompson 
81302ac6454SAndrew Thompson static void
81402ac6454SAndrew Thompson uhci_dump_tds(uhci_td_t *td)
81502ac6454SAndrew Thompson {
81602ac6454SAndrew Thompson 	for (;
81702ac6454SAndrew Thompson 	    td != NULL;
81802ac6454SAndrew Thompson 	    td = td->obj_next) {
81902ac6454SAndrew Thompson 		if (uhci_dump_td(td)) {
82002ac6454SAndrew Thompson 			break;
82102ac6454SAndrew Thompson 		}
82202ac6454SAndrew Thompson 	}
82302ac6454SAndrew Thompson }
82402ac6454SAndrew Thompson 
82502ac6454SAndrew Thompson #endif
82602ac6454SAndrew Thompson 
82702ac6454SAndrew Thompson /*
82802ac6454SAndrew Thompson  * Let the last QH loop back to the full speed control transfer QH.
82902ac6454SAndrew Thompson  * This is what intel calls "bandwidth reclamation" and improves
83002ac6454SAndrew Thompson  * USB performance a lot for some devices.
83102ac6454SAndrew Thompson  * If we are already looping, just count it.
83202ac6454SAndrew Thompson  */
83302ac6454SAndrew Thompson static void
83402ac6454SAndrew Thompson uhci_add_loop(uhci_softc_t *sc)
83502ac6454SAndrew Thompson {
83602ac6454SAndrew Thompson 	struct uhci_qh *qh_lst;
83702ac6454SAndrew Thompson 	struct uhci_qh *qh_rec;
83802ac6454SAndrew Thompson 
839b850ecc1SAndrew Thompson #ifdef USB_DEBUG
84002ac6454SAndrew Thompson 	if (uhcinoloop) {
84102ac6454SAndrew Thompson 		return;
84202ac6454SAndrew Thompson 	}
84302ac6454SAndrew Thompson #endif
84402ac6454SAndrew Thompson 	if (++(sc->sc_loops) == 1) {
84502ac6454SAndrew Thompson 		DPRINTFN(6, "add\n");
84602ac6454SAndrew Thompson 
84702ac6454SAndrew Thompson 		qh_lst = sc->sc_last_qh_p;
84802ac6454SAndrew Thompson 		qh_rec = sc->sc_reclaim_qh_p;
84902ac6454SAndrew Thompson 
85002ac6454SAndrew Thompson 		/* NOTE: we don't loop back the soft pointer */
85102ac6454SAndrew Thompson 
85202ac6454SAndrew Thompson 		qh_lst->qh_h_next = qh_rec->qh_self;
853a593f6b8SAndrew Thompson 		usb_pc_cpu_flush(qh_lst->page_cache);
85402ac6454SAndrew Thompson 	}
85502ac6454SAndrew Thompson }
85602ac6454SAndrew Thompson 
85702ac6454SAndrew Thompson static void
85802ac6454SAndrew Thompson uhci_rem_loop(uhci_softc_t *sc)
85902ac6454SAndrew Thompson {
86002ac6454SAndrew Thompson 	struct uhci_qh *qh_lst;
86102ac6454SAndrew Thompson 
862b850ecc1SAndrew Thompson #ifdef USB_DEBUG
86302ac6454SAndrew Thompson 	if (uhcinoloop) {
86402ac6454SAndrew Thompson 		return;
86502ac6454SAndrew Thompson 	}
86602ac6454SAndrew Thompson #endif
86702ac6454SAndrew Thompson 	if (--(sc->sc_loops) == 0) {
86802ac6454SAndrew Thompson 		DPRINTFN(6, "remove\n");
86902ac6454SAndrew Thompson 
87002ac6454SAndrew Thompson 		qh_lst = sc->sc_last_qh_p;
87102ac6454SAndrew Thompson 		qh_lst->qh_h_next = htole32(UHCI_PTR_T);
872a593f6b8SAndrew Thompson 		usb_pc_cpu_flush(qh_lst->page_cache);
87302ac6454SAndrew Thompson 	}
87402ac6454SAndrew Thompson }
87502ac6454SAndrew Thompson 
87602ac6454SAndrew Thompson static void
877760bc48eSAndrew Thompson uhci_transfer_intr_enqueue(struct usb_xfer *xfer)
87802ac6454SAndrew Thompson {
87902ac6454SAndrew Thompson 	/* check for early completion */
88002ac6454SAndrew Thompson 	if (uhci_check_transfer(xfer)) {
88102ac6454SAndrew Thompson 		return;
88202ac6454SAndrew Thompson 	}
88302ac6454SAndrew Thompson 	/* put transfer on interrupt queue */
884a593f6b8SAndrew Thompson 	usbd_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer);
88502ac6454SAndrew Thompson 
88602ac6454SAndrew Thompson 	/* start timeout, if any */
88702ac6454SAndrew Thompson 	if (xfer->timeout != 0) {
888a593f6b8SAndrew Thompson 		usbd_transfer_timeout_ms(xfer, &uhci_timeout, xfer->timeout);
88902ac6454SAndrew Thompson 	}
89002ac6454SAndrew Thompson }
89102ac6454SAndrew Thompson 
89202ac6454SAndrew Thompson #define	UHCI_APPEND_TD(std,last) (last) = _uhci_append_td(std,last)
89302ac6454SAndrew Thompson static uhci_td_t *
89402ac6454SAndrew Thompson _uhci_append_td(uhci_td_t *std, uhci_td_t *last)
89502ac6454SAndrew Thompson {
89602ac6454SAndrew Thompson 	DPRINTFN(11, "%p to %p\n", std, last);
89702ac6454SAndrew Thompson 
89802ac6454SAndrew Thompson 	/* (sc->sc_bus.mtx) must be locked */
89902ac6454SAndrew Thompson 
90002ac6454SAndrew Thompson 	std->next = last->next;
90102ac6454SAndrew Thompson 	std->td_next = last->td_next;
90202ac6454SAndrew Thompson 
90302ac6454SAndrew Thompson 	std->prev = last;
90402ac6454SAndrew Thompson 
905a593f6b8SAndrew Thompson 	usb_pc_cpu_flush(std->page_cache);
90602ac6454SAndrew Thompson 
90702ac6454SAndrew Thompson 	/*
90802ac6454SAndrew Thompson 	 * the last->next->prev is never followed: std->next->prev = std;
90902ac6454SAndrew Thompson 	 */
91002ac6454SAndrew Thompson 	last->next = std;
91102ac6454SAndrew Thompson 	last->td_next = std->td_self;
91202ac6454SAndrew Thompson 
913a593f6b8SAndrew Thompson 	usb_pc_cpu_flush(last->page_cache);
91402ac6454SAndrew Thompson 
91502ac6454SAndrew Thompson 	return (std);
91602ac6454SAndrew Thompson }
91702ac6454SAndrew Thompson 
91802ac6454SAndrew Thompson #define	UHCI_APPEND_QH(sqh,last) (last) = _uhci_append_qh(sqh,last)
91902ac6454SAndrew Thompson static uhci_qh_t *
92002ac6454SAndrew Thompson _uhci_append_qh(uhci_qh_t *sqh, uhci_qh_t *last)
92102ac6454SAndrew Thompson {
92202ac6454SAndrew Thompson 	DPRINTFN(11, "%p to %p\n", sqh, last);
92302ac6454SAndrew Thompson 
92402ac6454SAndrew Thompson 	if (sqh->h_prev != NULL) {
92502ac6454SAndrew Thompson 		/* should not happen */
92602ac6454SAndrew Thompson 		DPRINTFN(0, "QH already linked!\n");
92702ac6454SAndrew Thompson 		return (last);
92802ac6454SAndrew Thompson 	}
92902ac6454SAndrew Thompson 	/* (sc->sc_bus.mtx) must be locked */
93002ac6454SAndrew Thompson 
93102ac6454SAndrew Thompson 	sqh->h_next = last->h_next;
93202ac6454SAndrew Thompson 	sqh->qh_h_next = last->qh_h_next;
93302ac6454SAndrew Thompson 
93402ac6454SAndrew Thompson 	sqh->h_prev = last;
93502ac6454SAndrew Thompson 
936a593f6b8SAndrew Thompson 	usb_pc_cpu_flush(sqh->page_cache);
93702ac6454SAndrew Thompson 
93802ac6454SAndrew Thompson 	/*
93902ac6454SAndrew Thompson 	 * The "last->h_next->h_prev" is never followed:
94002ac6454SAndrew Thompson 	 *
94102ac6454SAndrew Thompson 	 * "sqh->h_next->h_prev" = sqh;
94202ac6454SAndrew Thompson 	 */
94302ac6454SAndrew Thompson 
94402ac6454SAndrew Thompson 	last->h_next = sqh;
94502ac6454SAndrew Thompson 	last->qh_h_next = sqh->qh_self;
94602ac6454SAndrew Thompson 
947a593f6b8SAndrew Thompson 	usb_pc_cpu_flush(last->page_cache);
94802ac6454SAndrew Thompson 
94902ac6454SAndrew Thompson 	return (sqh);
95002ac6454SAndrew Thompson }
95102ac6454SAndrew Thompson 
95202ac6454SAndrew Thompson /**/
95302ac6454SAndrew Thompson 
95402ac6454SAndrew Thompson #define	UHCI_REMOVE_TD(std,last) (last) = _uhci_remove_td(std,last)
95502ac6454SAndrew Thompson static uhci_td_t *
95602ac6454SAndrew Thompson _uhci_remove_td(uhci_td_t *std, uhci_td_t *last)
95702ac6454SAndrew Thompson {
95802ac6454SAndrew Thompson 	DPRINTFN(11, "%p from %p\n", std, last);
95902ac6454SAndrew Thompson 
96002ac6454SAndrew Thompson 	/* (sc->sc_bus.mtx) must be locked */
96102ac6454SAndrew Thompson 
96202ac6454SAndrew Thompson 	std->prev->next = std->next;
96302ac6454SAndrew Thompson 	std->prev->td_next = std->td_next;
96402ac6454SAndrew Thompson 
965a593f6b8SAndrew Thompson 	usb_pc_cpu_flush(std->prev->page_cache);
96602ac6454SAndrew Thompson 
96702ac6454SAndrew Thompson 	if (std->next) {
96802ac6454SAndrew Thompson 		std->next->prev = std->prev;
969a593f6b8SAndrew Thompson 		usb_pc_cpu_flush(std->next->page_cache);
97002ac6454SAndrew Thompson 	}
97102ac6454SAndrew Thompson 	return ((last == std) ? std->prev : last);
97202ac6454SAndrew Thompson }
97302ac6454SAndrew Thompson 
97402ac6454SAndrew Thompson #define	UHCI_REMOVE_QH(sqh,last) (last) = _uhci_remove_qh(sqh,last)
97502ac6454SAndrew Thompson static uhci_qh_t *
97602ac6454SAndrew Thompson _uhci_remove_qh(uhci_qh_t *sqh, uhci_qh_t *last)
97702ac6454SAndrew Thompson {
97802ac6454SAndrew Thompson 	DPRINTFN(11, "%p from %p\n", sqh, last);
97902ac6454SAndrew Thompson 
98002ac6454SAndrew Thompson 	/* (sc->sc_bus.mtx) must be locked */
98102ac6454SAndrew Thompson 
98202ac6454SAndrew Thompson 	/* only remove if not removed from a queue */
98302ac6454SAndrew Thompson 	if (sqh->h_prev) {
98402ac6454SAndrew Thompson 
98502ac6454SAndrew Thompson 		sqh->h_prev->h_next = sqh->h_next;
98602ac6454SAndrew Thompson 		sqh->h_prev->qh_h_next = sqh->qh_h_next;
98702ac6454SAndrew Thompson 
988a593f6b8SAndrew Thompson 		usb_pc_cpu_flush(sqh->h_prev->page_cache);
98902ac6454SAndrew Thompson 
99002ac6454SAndrew Thompson 		if (sqh->h_next) {
99102ac6454SAndrew Thompson 			sqh->h_next->h_prev = sqh->h_prev;
992a593f6b8SAndrew Thompson 			usb_pc_cpu_flush(sqh->h_next->page_cache);
99302ac6454SAndrew Thompson 		}
99402ac6454SAndrew Thompson 		last = ((last == sqh) ? sqh->h_prev : last);
99502ac6454SAndrew Thompson 
99602ac6454SAndrew Thompson 		sqh->h_prev = 0;
99702ac6454SAndrew Thompson 
998a593f6b8SAndrew Thompson 		usb_pc_cpu_flush(sqh->page_cache);
99902ac6454SAndrew Thompson 	}
100002ac6454SAndrew Thompson 	return (last);
100102ac6454SAndrew Thompson }
100202ac6454SAndrew Thompson 
100302ac6454SAndrew Thompson static void
1004760bc48eSAndrew Thompson uhci_isoc_done(uhci_softc_t *sc, struct usb_xfer *xfer)
100502ac6454SAndrew Thompson {
1006760bc48eSAndrew Thompson 	struct usb_page_search res;
100702ac6454SAndrew Thompson 	uint32_t nframes = xfer->nframes;
100802ac6454SAndrew Thompson 	uint32_t status;
100902ac6454SAndrew Thompson 	uint32_t offset = 0;
101002ac6454SAndrew Thompson 	uint32_t *plen = xfer->frlengths;
101102ac6454SAndrew Thompson 	uint16_t len = 0;
101202ac6454SAndrew Thompson 	uhci_td_t *td = xfer->td_transfer_first;
101302ac6454SAndrew Thompson 	uhci_td_t **pp_last = &sc->sc_isoc_p_last[xfer->qh_pos];
101402ac6454SAndrew Thompson 
1015ae60fdfbSAndrew Thompson 	DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n",
1016ae60fdfbSAndrew Thompson 	    xfer, xfer->endpoint);
101702ac6454SAndrew Thompson 
101802ac6454SAndrew Thompson 	/* sync any DMA memory before doing fixups */
101902ac6454SAndrew Thompson 
1020a593f6b8SAndrew Thompson 	usb_bdma_post_sync(xfer);
102102ac6454SAndrew Thompson 
102202ac6454SAndrew Thompson 	while (nframes--) {
102302ac6454SAndrew Thompson 		if (td == NULL) {
102402ac6454SAndrew Thompson 			panic("%s:%d: out of TD's\n",
102502ac6454SAndrew Thompson 			    __FUNCTION__, __LINE__);
102602ac6454SAndrew Thompson 		}
102702ac6454SAndrew Thompson 		if (pp_last >= &sc->sc_isoc_p_last[UHCI_VFRAMELIST_COUNT]) {
102802ac6454SAndrew Thompson 			pp_last = &sc->sc_isoc_p_last[0];
102902ac6454SAndrew Thompson 		}
1030b850ecc1SAndrew Thompson #ifdef USB_DEBUG
103102ac6454SAndrew Thompson 		if (uhcidebug > 5) {
103202ac6454SAndrew Thompson 			DPRINTF("isoc TD\n");
103302ac6454SAndrew Thompson 			uhci_dump_td(td);
103402ac6454SAndrew Thompson 		}
103502ac6454SAndrew Thompson #endif
1036a593f6b8SAndrew Thompson 		usb_pc_cpu_invalidate(td->page_cache);
103702ac6454SAndrew Thompson 		status = le32toh(td->td_status);
103802ac6454SAndrew Thompson 
103902ac6454SAndrew Thompson 		len = UHCI_TD_GET_ACTLEN(status);
104002ac6454SAndrew Thompson 
104102ac6454SAndrew Thompson 		if (len > *plen) {
104202ac6454SAndrew Thompson 			len = *plen;
104302ac6454SAndrew Thompson 		}
104402ac6454SAndrew Thompson 		if (td->fix_pc) {
104502ac6454SAndrew Thompson 
1046a593f6b8SAndrew Thompson 			usbd_get_page(td->fix_pc, 0, &res);
104702ac6454SAndrew Thompson 
104802ac6454SAndrew Thompson 			/* copy data from fixup location to real location */
104902ac6454SAndrew Thompson 
1050a593f6b8SAndrew Thompson 			usb_pc_cpu_invalidate(td->fix_pc);
105102ac6454SAndrew Thompson 
1052a593f6b8SAndrew Thompson 			usbd_copy_in(xfer->frbuffers, offset,
105302ac6454SAndrew Thompson 			    res.buffer, len);
105402ac6454SAndrew Thompson 		}
105502ac6454SAndrew Thompson 		offset += *plen;
105602ac6454SAndrew Thompson 
105702ac6454SAndrew Thompson 		*plen = len;
105802ac6454SAndrew Thompson 
105902ac6454SAndrew Thompson 		/* remove TD from schedule */
106002ac6454SAndrew Thompson 		UHCI_REMOVE_TD(td, *pp_last);
106102ac6454SAndrew Thompson 
106202ac6454SAndrew Thompson 		pp_last++;
106302ac6454SAndrew Thompson 		plen++;
106402ac6454SAndrew Thompson 		td = td->obj_next;
106502ac6454SAndrew Thompson 	}
106602ac6454SAndrew Thompson 
106702ac6454SAndrew Thompson 	xfer->aframes = xfer->nframes;
106802ac6454SAndrew Thompson }
106902ac6454SAndrew Thompson 
1070e0a69b51SAndrew Thompson static usb_error_t
1071760bc48eSAndrew Thompson uhci_non_isoc_done_sub(struct usb_xfer *xfer)
107202ac6454SAndrew Thompson {
1073760bc48eSAndrew Thompson 	struct usb_page_search res;
107402ac6454SAndrew Thompson 	uhci_td_t *td;
107502ac6454SAndrew Thompson 	uhci_td_t *td_alt_next;
107602ac6454SAndrew Thompson 	uint32_t status;
107702ac6454SAndrew Thompson 	uint32_t token;
107802ac6454SAndrew Thompson 	uint16_t len;
107902ac6454SAndrew Thompson 
108002ac6454SAndrew Thompson 	td = xfer->td_transfer_cache;
108102ac6454SAndrew Thompson 	td_alt_next = td->alt_next;
108202ac6454SAndrew Thompson 
108302ac6454SAndrew Thompson 	if (xfer->aframes != xfer->nframes) {
1084ed6d949aSAndrew Thompson 		usbd_xfer_set_frame_len(xfer, xfer->aframes, 0);
108502ac6454SAndrew Thompson 	}
108602ac6454SAndrew Thompson 	while (1) {
108702ac6454SAndrew Thompson 
1088a593f6b8SAndrew Thompson 		usb_pc_cpu_invalidate(td->page_cache);
108902ac6454SAndrew Thompson 		status = le32toh(td->td_status);
109002ac6454SAndrew Thompson 		token = le32toh(td->td_token);
109102ac6454SAndrew Thompson 
109202ac6454SAndrew Thompson 		/*
109302ac6454SAndrew Thompson 	         * Verify the status and add
109402ac6454SAndrew Thompson 	         * up the actual length:
109502ac6454SAndrew Thompson 	         */
109602ac6454SAndrew Thompson 
109702ac6454SAndrew Thompson 		len = UHCI_TD_GET_ACTLEN(status);
109802ac6454SAndrew Thompson 		if (len > td->len) {
109902ac6454SAndrew Thompson 			/* should not happen */
110002ac6454SAndrew Thompson 			DPRINTF("Invalid status length, "
110102ac6454SAndrew Thompson 			    "0x%04x/0x%04x bytes\n", len, td->len);
110202ac6454SAndrew Thompson 			status |= UHCI_TD_STALLED;
110302ac6454SAndrew Thompson 
110402ac6454SAndrew Thompson 		} else if ((xfer->aframes != xfer->nframes) && (len > 0)) {
110502ac6454SAndrew Thompson 
110602ac6454SAndrew Thompson 			if (td->fix_pc) {
110702ac6454SAndrew Thompson 
1108a593f6b8SAndrew Thompson 				usbd_get_page(td->fix_pc, 0, &res);
110902ac6454SAndrew Thompson 
111002ac6454SAndrew Thompson 				/*
111102ac6454SAndrew Thompson 				 * copy data from fixup location to real
111202ac6454SAndrew Thompson 				 * location
111302ac6454SAndrew Thompson 				 */
111402ac6454SAndrew Thompson 
1115a593f6b8SAndrew Thompson 				usb_pc_cpu_invalidate(td->fix_pc);
111602ac6454SAndrew Thompson 
1117a593f6b8SAndrew Thompson 				usbd_copy_in(xfer->frbuffers + xfer->aframes,
111802ac6454SAndrew Thompson 				    xfer->frlengths[xfer->aframes], res.buffer, len);
111902ac6454SAndrew Thompson 			}
112002ac6454SAndrew Thompson 			/* update actual length */
112102ac6454SAndrew Thompson 
112202ac6454SAndrew Thompson 			xfer->frlengths[xfer->aframes] += len;
112302ac6454SAndrew Thompson 		}
112402ac6454SAndrew Thompson 		/* Check for last transfer */
112502ac6454SAndrew Thompson 		if (((void *)td) == xfer->td_transfer_last) {
112602ac6454SAndrew Thompson 			td = NULL;
112702ac6454SAndrew Thompson 			break;
112802ac6454SAndrew Thompson 		}
112902ac6454SAndrew Thompson 		if (status & UHCI_TD_STALLED) {
113002ac6454SAndrew Thompson 			/* the transfer is finished */
113102ac6454SAndrew Thompson 			td = NULL;
113202ac6454SAndrew Thompson 			break;
113302ac6454SAndrew Thompson 		}
113402ac6454SAndrew Thompson 		/* Check for short transfer */
113502ac6454SAndrew Thompson 		if (len != td->len) {
113602ac6454SAndrew Thompson 			if (xfer->flags_int.short_frames_ok) {
113702ac6454SAndrew Thompson 				/* follow alt next */
113802ac6454SAndrew Thompson 				td = td->alt_next;
113902ac6454SAndrew Thompson 			} else {
114002ac6454SAndrew Thompson 				/* the transfer is finished */
114102ac6454SAndrew Thompson 				td = NULL;
114202ac6454SAndrew Thompson 			}
114302ac6454SAndrew Thompson 			break;
114402ac6454SAndrew Thompson 		}
114502ac6454SAndrew Thompson 		td = td->obj_next;
114602ac6454SAndrew Thompson 
114702ac6454SAndrew Thompson 		if (td->alt_next != td_alt_next) {
114802ac6454SAndrew Thompson 			/* this USB frame is complete */
114902ac6454SAndrew Thompson 			break;
115002ac6454SAndrew Thompson 		}
115102ac6454SAndrew Thompson 	}
115202ac6454SAndrew Thompson 
115302ac6454SAndrew Thompson 	/* update transfer cache */
115402ac6454SAndrew Thompson 
115502ac6454SAndrew Thompson 	xfer->td_transfer_cache = td;
115602ac6454SAndrew Thompson 
115702ac6454SAndrew Thompson 	/* update data toggle */
115802ac6454SAndrew Thompson 
1159ae60fdfbSAndrew Thompson 	xfer->endpoint->toggle_next = (token & UHCI_TD_SET_DT(1)) ? 0 : 1;
116002ac6454SAndrew Thompson 
1161b850ecc1SAndrew Thompson #ifdef USB_DEBUG
116202ac6454SAndrew Thompson 	if (status & UHCI_TD_ERROR) {
116302ac6454SAndrew Thompson 		DPRINTFN(11, "error, addr=%d, endpt=0x%02x, frame=0x%02x "
116402ac6454SAndrew Thompson 		    "status=%s%s%s%s%s%s%s%s%s%s%s\n",
1165ae60fdfbSAndrew Thompson 		    xfer->address, xfer->endpointno, xfer->aframes,
116602ac6454SAndrew Thompson 		    (status & UHCI_TD_BITSTUFF) ? "[BITSTUFF]" : "",
116702ac6454SAndrew Thompson 		    (status & UHCI_TD_CRCTO) ? "[CRCTO]" : "",
116802ac6454SAndrew Thompson 		    (status & UHCI_TD_NAK) ? "[NAK]" : "",
116902ac6454SAndrew Thompson 		    (status & UHCI_TD_BABBLE) ? "[BABBLE]" : "",
117002ac6454SAndrew Thompson 		    (status & UHCI_TD_DBUFFER) ? "[DBUFFER]" : "",
117102ac6454SAndrew Thompson 		    (status & UHCI_TD_STALLED) ? "[STALLED]" : "",
117202ac6454SAndrew Thompson 		    (status & UHCI_TD_ACTIVE) ? "[ACTIVE]" : "[NOT_ACTIVE]",
117302ac6454SAndrew Thompson 		    (status & UHCI_TD_IOC) ? "[IOC]" : "",
117402ac6454SAndrew Thompson 		    (status & UHCI_TD_IOS) ? "[IOS]" : "",
117502ac6454SAndrew Thompson 		    (status & UHCI_TD_LS) ? "[LS]" : "",
117602ac6454SAndrew Thompson 		    (status & UHCI_TD_SPD) ? "[SPD]" : "");
117702ac6454SAndrew Thompson 	}
117802ac6454SAndrew Thompson #endif
117902ac6454SAndrew Thompson 	return (status & UHCI_TD_STALLED) ?
118002ac6454SAndrew Thompson 	    USB_ERR_STALLED : USB_ERR_NORMAL_COMPLETION;
118102ac6454SAndrew Thompson }
118202ac6454SAndrew Thompson 
118302ac6454SAndrew Thompson static void
1184760bc48eSAndrew Thompson uhci_non_isoc_done(struct usb_xfer *xfer)
118502ac6454SAndrew Thompson {
1186e0a69b51SAndrew Thompson 	usb_error_t err = 0;
118702ac6454SAndrew Thompson 
1188ae60fdfbSAndrew Thompson 	DPRINTFN(13, "xfer=%p endpoint=%p transfer done\n",
1189ae60fdfbSAndrew Thompson 	    xfer, xfer->endpoint);
119002ac6454SAndrew Thompson 
1191b850ecc1SAndrew Thompson #ifdef USB_DEBUG
119202ac6454SAndrew Thompson 	if (uhcidebug > 10) {
119302ac6454SAndrew Thompson 		uhci_dump_tds(xfer->td_transfer_first);
119402ac6454SAndrew Thompson 	}
119502ac6454SAndrew Thompson #endif
119602ac6454SAndrew Thompson 
119702ac6454SAndrew Thompson 	/* sync any DMA memory before doing fixups */
119802ac6454SAndrew Thompson 
1199a593f6b8SAndrew Thompson 	usb_bdma_post_sync(xfer);
120002ac6454SAndrew Thompson 
120102ac6454SAndrew Thompson 	/* reset scanner */
120202ac6454SAndrew Thompson 
120302ac6454SAndrew Thompson 	xfer->td_transfer_cache = xfer->td_transfer_first;
120402ac6454SAndrew Thompson 
120502ac6454SAndrew Thompson 	if (xfer->flags_int.control_xfr) {
120602ac6454SAndrew Thompson 		if (xfer->flags_int.control_hdr) {
120702ac6454SAndrew Thompson 
120802ac6454SAndrew Thompson 			err = uhci_non_isoc_done_sub(xfer);
120902ac6454SAndrew Thompson 		}
121002ac6454SAndrew Thompson 		xfer->aframes = 1;
121102ac6454SAndrew Thompson 
121202ac6454SAndrew Thompson 		if (xfer->td_transfer_cache == NULL) {
121302ac6454SAndrew Thompson 			goto done;
121402ac6454SAndrew Thompson 		}
121502ac6454SAndrew Thompson 	}
121602ac6454SAndrew Thompson 	while (xfer->aframes != xfer->nframes) {
121702ac6454SAndrew Thompson 
121802ac6454SAndrew Thompson 		err = uhci_non_isoc_done_sub(xfer);
121902ac6454SAndrew Thompson 		xfer->aframes++;
122002ac6454SAndrew Thompson 
122102ac6454SAndrew Thompson 		if (xfer->td_transfer_cache == NULL) {
122202ac6454SAndrew Thompson 			goto done;
122302ac6454SAndrew Thompson 		}
122402ac6454SAndrew Thompson 	}
122502ac6454SAndrew Thompson 
122602ac6454SAndrew Thompson 	if (xfer->flags_int.control_xfr &&
122702ac6454SAndrew Thompson 	    !xfer->flags_int.control_act) {
122802ac6454SAndrew Thompson 
122902ac6454SAndrew Thompson 		err = uhci_non_isoc_done_sub(xfer);
123002ac6454SAndrew Thompson 	}
123102ac6454SAndrew Thompson done:
123202ac6454SAndrew Thompson 	uhci_device_done(xfer, err);
123302ac6454SAndrew Thompson }
123402ac6454SAndrew Thompson 
123502ac6454SAndrew Thompson /*------------------------------------------------------------------------*
123602ac6454SAndrew Thompson  *	uhci_check_transfer_sub
123702ac6454SAndrew Thompson  *
123802ac6454SAndrew Thompson  * The main purpose of this function is to update the data-toggle
123902ac6454SAndrew Thompson  * in case it is wrong.
124002ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
124102ac6454SAndrew Thompson static void
1242760bc48eSAndrew Thompson uhci_check_transfer_sub(struct usb_xfer *xfer)
124302ac6454SAndrew Thompson {
124402ac6454SAndrew Thompson 	uhci_qh_t *qh;
124502ac6454SAndrew Thompson 	uhci_td_t *td;
124602ac6454SAndrew Thompson 	uhci_td_t *td_alt_next;
124702ac6454SAndrew Thompson 
124802ac6454SAndrew Thompson 	uint32_t td_token;
124902ac6454SAndrew Thompson 	uint32_t td_self;
125002ac6454SAndrew Thompson 
125102ac6454SAndrew Thompson 	td = xfer->td_transfer_cache;
125202ac6454SAndrew Thompson 	qh = xfer->qh_start[xfer->flags_int.curr_dma_set];
125302ac6454SAndrew Thompson 
125402ac6454SAndrew Thompson 	td_token = td->obj_next->td_token;
125502ac6454SAndrew Thompson 	td = td->alt_next;
125602ac6454SAndrew Thompson 	xfer->td_transfer_cache = td;
125702ac6454SAndrew Thompson 	td_self = td->td_self;
125802ac6454SAndrew Thompson 	td_alt_next = td->alt_next;
125902ac6454SAndrew Thompson 
12600f7d4548SAndrew Thompson 	if (xfer->flags_int.control_xfr)
12610f7d4548SAndrew Thompson 		goto skip;	/* don't touch the DT value! */
12620f7d4548SAndrew Thompson 
12630f7d4548SAndrew Thompson 	if (!((td->td_token ^ td_token) & htole32(UHCI_TD_SET_DT(1))))
12640f7d4548SAndrew Thompson 		goto skip;	/* data toggle has correct value */
126502ac6454SAndrew Thompson 
126602ac6454SAndrew Thompson 	/*
12670f7d4548SAndrew Thompson 	 * The data toggle is wrong and we need to toggle it !
126802ac6454SAndrew Thompson 	 */
126902ac6454SAndrew Thompson 	while (1) {
127002ac6454SAndrew Thompson 
127102ac6454SAndrew Thompson 		td->td_token ^= htole32(UHCI_TD_SET_DT(1));
1272a593f6b8SAndrew Thompson 		usb_pc_cpu_flush(td->page_cache);
127302ac6454SAndrew Thompson 
127402ac6454SAndrew Thompson 		if (td == xfer->td_transfer_last) {
127502ac6454SAndrew Thompson 			/* last transfer */
127602ac6454SAndrew Thompson 			break;
127702ac6454SAndrew Thompson 		}
127802ac6454SAndrew Thompson 		td = td->obj_next;
127902ac6454SAndrew Thompson 
128002ac6454SAndrew Thompson 		if (td->alt_next != td_alt_next) {
128102ac6454SAndrew Thompson 			/* next frame */
128202ac6454SAndrew Thompson 			break;
128302ac6454SAndrew Thompson 		}
128402ac6454SAndrew Thompson 	}
12850f7d4548SAndrew Thompson skip:
12860f7d4548SAndrew Thompson 
128702ac6454SAndrew Thompson 	/* update the QH */
128802ac6454SAndrew Thompson 	qh->qh_e_next = td_self;
1289a593f6b8SAndrew Thompson 	usb_pc_cpu_flush(qh->page_cache);
129002ac6454SAndrew Thompson 
129102ac6454SAndrew Thompson 	DPRINTFN(13, "xfer=%p following alt next\n", xfer);
129202ac6454SAndrew Thompson }
129302ac6454SAndrew Thompson 
129402ac6454SAndrew Thompson /*------------------------------------------------------------------------*
129502ac6454SAndrew Thompson  *	uhci_check_transfer
129602ac6454SAndrew Thompson  *
129702ac6454SAndrew Thompson  * Return values:
129802ac6454SAndrew Thompson  *    0: USB transfer is not finished
129902ac6454SAndrew Thompson  * Else: USB transfer is finished
130002ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
130102ac6454SAndrew Thompson static uint8_t
1302760bc48eSAndrew Thompson uhci_check_transfer(struct usb_xfer *xfer)
130302ac6454SAndrew Thompson {
130402ac6454SAndrew Thompson 	uint32_t status;
130502ac6454SAndrew Thompson 	uint32_t token;
130602ac6454SAndrew Thompson 	uhci_td_t *td;
130702ac6454SAndrew Thompson 
130802ac6454SAndrew Thompson 	DPRINTFN(16, "xfer=%p checking transfer\n", xfer);
130902ac6454SAndrew Thompson 
1310ae60fdfbSAndrew Thompson 	if (xfer->endpoint->methods == &uhci_device_isoc_methods) {
131102ac6454SAndrew Thompson 		/* isochronous transfer */
131202ac6454SAndrew Thompson 
131302ac6454SAndrew Thompson 		td = xfer->td_transfer_last;
131402ac6454SAndrew Thompson 
1315a593f6b8SAndrew Thompson 		usb_pc_cpu_invalidate(td->page_cache);
131602ac6454SAndrew Thompson 		status = le32toh(td->td_status);
131702ac6454SAndrew Thompson 
131802ac6454SAndrew Thompson 		/* check also if the first is complete */
131902ac6454SAndrew Thompson 
132002ac6454SAndrew Thompson 		td = xfer->td_transfer_first;
132102ac6454SAndrew Thompson 
1322a593f6b8SAndrew Thompson 		usb_pc_cpu_invalidate(td->page_cache);
132302ac6454SAndrew Thompson 		status |= le32toh(td->td_status);
132402ac6454SAndrew Thompson 
132502ac6454SAndrew Thompson 		if (!(status & UHCI_TD_ACTIVE)) {
132602ac6454SAndrew Thompson 			uhci_device_done(xfer, USB_ERR_NORMAL_COMPLETION);
132702ac6454SAndrew Thompson 			goto transferred;
132802ac6454SAndrew Thompson 		}
132902ac6454SAndrew Thompson 	} else {
133002ac6454SAndrew Thompson 		/* non-isochronous transfer */
133102ac6454SAndrew Thompson 
133202ac6454SAndrew Thompson 		/*
133302ac6454SAndrew Thompson 		 * check whether there is an error somewhere
133402ac6454SAndrew Thompson 		 * in the middle, or whether there was a short
133502ac6454SAndrew Thompson 		 * packet (SPD and not ACTIVE)
133602ac6454SAndrew Thompson 		 */
133702ac6454SAndrew Thompson 		td = xfer->td_transfer_cache;
133802ac6454SAndrew Thompson 
133902ac6454SAndrew Thompson 		while (1) {
1340a593f6b8SAndrew Thompson 			usb_pc_cpu_invalidate(td->page_cache);
134102ac6454SAndrew Thompson 			status = le32toh(td->td_status);
134202ac6454SAndrew Thompson 			token = le32toh(td->td_token);
134302ac6454SAndrew Thompson 
134402ac6454SAndrew Thompson 			/*
134502ac6454SAndrew Thompson 			 * if there is an active TD the transfer isn't done
134602ac6454SAndrew Thompson 			 */
134702ac6454SAndrew Thompson 			if (status & UHCI_TD_ACTIVE) {
134802ac6454SAndrew Thompson 				/* update cache */
134902ac6454SAndrew Thompson 				xfer->td_transfer_cache = td;
135002ac6454SAndrew Thompson 				goto done;
135102ac6454SAndrew Thompson 			}
135202ac6454SAndrew Thompson 			/*
135302ac6454SAndrew Thompson 			 * last transfer descriptor makes the transfer done
135402ac6454SAndrew Thompson 			 */
135502ac6454SAndrew Thompson 			if (((void *)td) == xfer->td_transfer_last) {
135602ac6454SAndrew Thompson 				break;
135702ac6454SAndrew Thompson 			}
135802ac6454SAndrew Thompson 			/*
135902ac6454SAndrew Thompson 			 * any kind of error makes the transfer done
136002ac6454SAndrew Thompson 			 */
136102ac6454SAndrew Thompson 			if (status & UHCI_TD_STALLED) {
136202ac6454SAndrew Thompson 				break;
136302ac6454SAndrew Thompson 			}
136402ac6454SAndrew Thompson 			/*
136502ac6454SAndrew Thompson 			 * check if we reached the last packet
136602ac6454SAndrew Thompson 			 * or if there is a short packet:
136702ac6454SAndrew Thompson 			 */
136802ac6454SAndrew Thompson 			if ((td->td_next == htole32(UHCI_PTR_T)) ||
136902ac6454SAndrew Thompson 			    (UHCI_TD_GET_ACTLEN(status) < td->len)) {
137002ac6454SAndrew Thompson 
137102ac6454SAndrew Thompson 				if (xfer->flags_int.short_frames_ok) {
137202ac6454SAndrew Thompson 					/* follow alt next */
137302ac6454SAndrew Thompson 					if (td->alt_next) {
137402ac6454SAndrew Thompson 						/* update cache */
137502ac6454SAndrew Thompson 						xfer->td_transfer_cache = td;
137602ac6454SAndrew Thompson 						uhci_check_transfer_sub(xfer);
137702ac6454SAndrew Thompson 						goto done;
137802ac6454SAndrew Thompson 					}
137902ac6454SAndrew Thompson 				}
138002ac6454SAndrew Thompson 				/* transfer is done */
138102ac6454SAndrew Thompson 				break;
138202ac6454SAndrew Thompson 			}
138302ac6454SAndrew Thompson 			td = td->obj_next;
138402ac6454SAndrew Thompson 		}
138502ac6454SAndrew Thompson 		uhci_non_isoc_done(xfer);
138602ac6454SAndrew Thompson 		goto transferred;
138702ac6454SAndrew Thompson 	}
138802ac6454SAndrew Thompson 
138902ac6454SAndrew Thompson done:
139002ac6454SAndrew Thompson 	DPRINTFN(13, "xfer=%p is still active\n", xfer);
139102ac6454SAndrew Thompson 	return (0);
139202ac6454SAndrew Thompson 
139302ac6454SAndrew Thompson transferred:
139402ac6454SAndrew Thompson 	return (1);
139502ac6454SAndrew Thompson }
139602ac6454SAndrew Thompson 
139702ac6454SAndrew Thompson static void
139802ac6454SAndrew Thompson uhci_interrupt_poll(uhci_softc_t *sc)
139902ac6454SAndrew Thompson {
1400760bc48eSAndrew Thompson 	struct usb_xfer *xfer;
140102ac6454SAndrew Thompson 
140202ac6454SAndrew Thompson repeat:
140302ac6454SAndrew Thompson 	TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
140402ac6454SAndrew Thompson 		/*
140502ac6454SAndrew Thompson 		 * check if transfer is transferred
140602ac6454SAndrew Thompson 		 */
140702ac6454SAndrew Thompson 		if (uhci_check_transfer(xfer)) {
140802ac6454SAndrew Thompson 			/* queue has been modified */
140902ac6454SAndrew Thompson 			goto repeat;
141002ac6454SAndrew Thompson 		}
141102ac6454SAndrew Thompson 	}
141202ac6454SAndrew Thompson }
141302ac6454SAndrew Thompson 
141402ac6454SAndrew Thompson /*------------------------------------------------------------------------*
141502ac6454SAndrew Thompson  *	uhci_interrupt - UHCI interrupt handler
141602ac6454SAndrew Thompson  *
141702ac6454SAndrew Thompson  * NOTE: Do not access "sc->sc_bus.bdev" inside the interrupt handler,
141802ac6454SAndrew Thompson  * hence the interrupt handler will be setup before "sc->sc_bus.bdev"
141902ac6454SAndrew Thompson  * is present !
142002ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
142102ac6454SAndrew Thompson void
142202ac6454SAndrew Thompson uhci_interrupt(uhci_softc_t *sc)
142302ac6454SAndrew Thompson {
142402ac6454SAndrew Thompson 	uint32_t status;
142502ac6454SAndrew Thompson 
142602ac6454SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
142702ac6454SAndrew Thompson 
142802ac6454SAndrew Thompson 	DPRINTFN(16, "real interrupt\n");
142902ac6454SAndrew Thompson 
1430b850ecc1SAndrew Thompson #ifdef USB_DEBUG
143102ac6454SAndrew Thompson 	if (uhcidebug > 15) {
143202ac6454SAndrew Thompson 		uhci_dumpregs(sc);
143302ac6454SAndrew Thompson 	}
143402ac6454SAndrew Thompson #endif
143502ac6454SAndrew Thompson 	status = UREAD2(sc, UHCI_STS) & UHCI_STS_ALLINTRS;
143602ac6454SAndrew Thompson 	if (status == 0) {
143702ac6454SAndrew Thompson 		/* the interrupt was not for us */
143802ac6454SAndrew Thompson 		goto done;
143902ac6454SAndrew Thompson 	}
144002ac6454SAndrew Thompson 	if (status & (UHCI_STS_RD | UHCI_STS_HSE |
144102ac6454SAndrew Thompson 	    UHCI_STS_HCPE | UHCI_STS_HCH)) {
144202ac6454SAndrew Thompson 
144302ac6454SAndrew Thompson 		if (status & UHCI_STS_RD) {
1444b850ecc1SAndrew Thompson #ifdef USB_DEBUG
144502ac6454SAndrew Thompson 			printf("%s: resume detect\n",
144602ac6454SAndrew Thompson 			    __FUNCTION__);
144702ac6454SAndrew Thompson #endif
144802ac6454SAndrew Thompson 		}
144902ac6454SAndrew Thompson 		if (status & UHCI_STS_HSE) {
145002ac6454SAndrew Thompson 			printf("%s: host system error\n",
145102ac6454SAndrew Thompson 			    __FUNCTION__);
145202ac6454SAndrew Thompson 		}
145302ac6454SAndrew Thompson 		if (status & UHCI_STS_HCPE) {
145402ac6454SAndrew Thompson 			printf("%s: host controller process error\n",
145502ac6454SAndrew Thompson 			    __FUNCTION__);
145602ac6454SAndrew Thompson 		}
145702ac6454SAndrew Thompson 		if (status & UHCI_STS_HCH) {
145802ac6454SAndrew Thompson 			/* no acknowledge needed */
145902ac6454SAndrew Thompson 			DPRINTF("%s: host controller halted\n",
146002ac6454SAndrew Thompson 			    __FUNCTION__);
1461b850ecc1SAndrew Thompson #ifdef USB_DEBUG
146202ac6454SAndrew Thompson 			if (uhcidebug > 0) {
146302ac6454SAndrew Thompson 				uhci_dump_all(sc);
146402ac6454SAndrew Thompson 			}
146502ac6454SAndrew Thompson #endif
146602ac6454SAndrew Thompson 		}
146702ac6454SAndrew Thompson 	}
146802ac6454SAndrew Thompson 	/* get acknowledge bits */
146902ac6454SAndrew Thompson 	status &= (UHCI_STS_USBINT |
147002ac6454SAndrew Thompson 	    UHCI_STS_USBEI |
147102ac6454SAndrew Thompson 	    UHCI_STS_RD |
147202ac6454SAndrew Thompson 	    UHCI_STS_HSE |
147302ac6454SAndrew Thompson 	    UHCI_STS_HCPE);
147402ac6454SAndrew Thompson 
147502ac6454SAndrew Thompson 	if (status == 0) {
147602ac6454SAndrew Thompson 		/* nothing to acknowledge */
147702ac6454SAndrew Thompson 		goto done;
147802ac6454SAndrew Thompson 	}
147902ac6454SAndrew Thompson 	/* acknowledge interrupts */
148002ac6454SAndrew Thompson 	UWRITE2(sc, UHCI_STS, status);
148102ac6454SAndrew Thompson 
148202ac6454SAndrew Thompson 	/* poll all the USB transfers */
148302ac6454SAndrew Thompson 	uhci_interrupt_poll(sc);
148402ac6454SAndrew Thompson 
148502ac6454SAndrew Thompson done:
148602ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
148702ac6454SAndrew Thompson }
148802ac6454SAndrew Thompson 
148902ac6454SAndrew Thompson /*
149002ac6454SAndrew Thompson  * called when a request does not complete
149102ac6454SAndrew Thompson  */
149202ac6454SAndrew Thompson static void
149302ac6454SAndrew Thompson uhci_timeout(void *arg)
149402ac6454SAndrew Thompson {
1495760bc48eSAndrew Thompson 	struct usb_xfer *xfer = arg;
149602ac6454SAndrew Thompson 
149702ac6454SAndrew Thompson 	DPRINTF("xfer=%p\n", xfer);
149802ac6454SAndrew Thompson 
149902ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED);
150002ac6454SAndrew Thompson 
150102ac6454SAndrew Thompson 	/* transfer is transferred */
150202ac6454SAndrew Thompson 	uhci_device_done(xfer, USB_ERR_TIMEOUT);
150302ac6454SAndrew Thompson }
150402ac6454SAndrew Thompson 
150502ac6454SAndrew Thompson static void
1506760bc48eSAndrew Thompson uhci_do_poll(struct usb_bus *bus)
150702ac6454SAndrew Thompson {
150802ac6454SAndrew Thompson 	struct uhci_softc *sc = UHCI_BUS2SC(bus);
150902ac6454SAndrew Thompson 
151002ac6454SAndrew Thompson 	USB_BUS_LOCK(&sc->sc_bus);
151102ac6454SAndrew Thompson 	uhci_interrupt_poll(sc);
151202ac6454SAndrew Thompson 	USB_BUS_UNLOCK(&sc->sc_bus);
151302ac6454SAndrew Thompson }
151402ac6454SAndrew Thompson 
151502ac6454SAndrew Thompson static void
151602ac6454SAndrew Thompson uhci_setup_standard_chain_sub(struct uhci_std_temp *temp)
151702ac6454SAndrew Thompson {
151802ac6454SAndrew Thompson 	uhci_td_t *td;
151902ac6454SAndrew Thompson 	uhci_td_t *td_next;
152002ac6454SAndrew Thompson 	uhci_td_t *td_alt_next;
152102ac6454SAndrew Thompson 	uint32_t average;
152202ac6454SAndrew Thompson 	uint32_t len_old;
152302ac6454SAndrew Thompson 	uint8_t shortpkt_old;
152402ac6454SAndrew Thompson 	uint8_t precompute;
152502ac6454SAndrew Thompson 
152602ac6454SAndrew Thompson 	td_alt_next = NULL;
152702ac6454SAndrew Thompson 	shortpkt_old = temp->shortpkt;
152802ac6454SAndrew Thompson 	len_old = temp->len;
152902ac6454SAndrew Thompson 	precompute = 1;
153002ac6454SAndrew Thompson 
153102ac6454SAndrew Thompson 	/* software is used to detect short incoming transfers */
153202ac6454SAndrew Thompson 
153302ac6454SAndrew Thompson 	if ((temp->td_token & htole32(UHCI_TD_PID)) == htole32(UHCI_TD_PID_IN)) {
153402ac6454SAndrew Thompson 		temp->td_status |= htole32(UHCI_TD_SPD);
153502ac6454SAndrew Thompson 	} else {
153602ac6454SAndrew Thompson 		temp->td_status &= ~htole32(UHCI_TD_SPD);
153702ac6454SAndrew Thompson 	}
153802ac6454SAndrew Thompson 
153902ac6454SAndrew Thompson 	temp->ml.buf_offset = 0;
154002ac6454SAndrew Thompson 
154102ac6454SAndrew Thompson restart:
154202ac6454SAndrew Thompson 
154302ac6454SAndrew Thompson 	temp->td_token &= ~htole32(UHCI_TD_SET_MAXLEN(0));
154402ac6454SAndrew Thompson 	temp->td_token |= htole32(UHCI_TD_SET_MAXLEN(temp->average));
154502ac6454SAndrew Thompson 
154602ac6454SAndrew Thompson 	td = temp->td;
154702ac6454SAndrew Thompson 	td_next = temp->td_next;
154802ac6454SAndrew Thompson 
154902ac6454SAndrew Thompson 	while (1) {
155002ac6454SAndrew Thompson 
155102ac6454SAndrew Thompson 		if (temp->len == 0) {
155202ac6454SAndrew Thompson 
155302ac6454SAndrew Thompson 			if (temp->shortpkt) {
155402ac6454SAndrew Thompson 				break;
155502ac6454SAndrew Thompson 			}
155602ac6454SAndrew Thompson 			/* send a Zero Length Packet, ZLP, last */
155702ac6454SAndrew Thompson 
155802ac6454SAndrew Thompson 			temp->shortpkt = 1;
155902ac6454SAndrew Thompson 			temp->td_token |= htole32(UHCI_TD_SET_MAXLEN(0));
156002ac6454SAndrew Thompson 			average = 0;
156102ac6454SAndrew Thompson 
156202ac6454SAndrew Thompson 		} else {
156302ac6454SAndrew Thompson 
156402ac6454SAndrew Thompson 			average = temp->average;
156502ac6454SAndrew Thompson 
156602ac6454SAndrew Thompson 			if (temp->len < average) {
156702ac6454SAndrew Thompson 				temp->shortpkt = 1;
156802ac6454SAndrew Thompson 				temp->td_token &= ~htole32(UHCI_TD_SET_MAXLEN(0));
156902ac6454SAndrew Thompson 				temp->td_token |= htole32(UHCI_TD_SET_MAXLEN(temp->len));
157002ac6454SAndrew Thompson 				average = temp->len;
157102ac6454SAndrew Thompson 			}
157202ac6454SAndrew Thompson 		}
157302ac6454SAndrew Thompson 
157402ac6454SAndrew Thompson 		if (td_next == NULL) {
157502ac6454SAndrew Thompson 			panic("%s: out of UHCI transfer descriptors!", __FUNCTION__);
157602ac6454SAndrew Thompson 		}
157702ac6454SAndrew Thompson 		/* get next TD */
157802ac6454SAndrew Thompson 
157902ac6454SAndrew Thompson 		td = td_next;
158002ac6454SAndrew Thompson 		td_next = td->obj_next;
158102ac6454SAndrew Thompson 
158202ac6454SAndrew Thompson 		/* check if we are pre-computing */
158302ac6454SAndrew Thompson 
158402ac6454SAndrew Thompson 		if (precompute) {
158502ac6454SAndrew Thompson 
158602ac6454SAndrew Thompson 			/* update remaining length */
158702ac6454SAndrew Thompson 
158802ac6454SAndrew Thompson 			temp->len -= average;
158902ac6454SAndrew Thompson 
159002ac6454SAndrew Thompson 			continue;
159102ac6454SAndrew Thompson 		}
159202ac6454SAndrew Thompson 		/* fill out current TD */
159302ac6454SAndrew Thompson 
159402ac6454SAndrew Thompson 		td->td_status = temp->td_status;
159502ac6454SAndrew Thompson 		td->td_token = temp->td_token;
159602ac6454SAndrew Thompson 
159702ac6454SAndrew Thompson 		/* update data toggle */
159802ac6454SAndrew Thompson 
159902ac6454SAndrew Thompson 		temp->td_token ^= htole32(UHCI_TD_SET_DT(1));
160002ac6454SAndrew Thompson 
160102ac6454SAndrew Thompson 		if (average == 0) {
160202ac6454SAndrew Thompson 
160302ac6454SAndrew Thompson 			td->len = 0;
160402ac6454SAndrew Thompson 			td->td_buffer = 0;
160502ac6454SAndrew Thompson 			td->fix_pc = NULL;
160602ac6454SAndrew Thompson 
160702ac6454SAndrew Thompson 		} else {
160802ac6454SAndrew Thompson 
160902ac6454SAndrew Thompson 			/* update remaining length */
161002ac6454SAndrew Thompson 
161102ac6454SAndrew Thompson 			temp->len -= average;
161202ac6454SAndrew Thompson 
161302ac6454SAndrew Thompson 			td->len = average;
161402ac6454SAndrew Thompson 
161502ac6454SAndrew Thompson 			/* fill out buffer pointer and do fixup, if any */
161602ac6454SAndrew Thompson 
161702ac6454SAndrew Thompson 			uhci_mem_layout_fixup(&temp->ml, td);
161802ac6454SAndrew Thompson 		}
161902ac6454SAndrew Thompson 
162002ac6454SAndrew Thompson 		td->alt_next = td_alt_next;
162102ac6454SAndrew Thompson 
162202ac6454SAndrew Thompson 		if ((td_next == td_alt_next) && temp->setup_alt_next) {
162302ac6454SAndrew Thompson 			/* we need to receive these frames one by one ! */
162402ac6454SAndrew Thompson 			td->td_status |= htole32(UHCI_TD_IOC);
162502ac6454SAndrew Thompson 			td->td_next = htole32(UHCI_PTR_T);
162602ac6454SAndrew Thompson 		} else {
162702ac6454SAndrew Thompson 			if (td_next) {
162802ac6454SAndrew Thompson 				/* link the current TD with the next one */
162902ac6454SAndrew Thompson 				td->td_next = td_next->td_self;
163002ac6454SAndrew Thompson 			}
163102ac6454SAndrew Thompson 		}
163202ac6454SAndrew Thompson 
1633a593f6b8SAndrew Thompson 		usb_pc_cpu_flush(td->page_cache);
163402ac6454SAndrew Thompson 	}
163502ac6454SAndrew Thompson 
163602ac6454SAndrew Thompson 	if (precompute) {
163702ac6454SAndrew Thompson 		precompute = 0;
163802ac6454SAndrew Thompson 
163902ac6454SAndrew Thompson 		/* setup alt next pointer, if any */
16400f7d4548SAndrew Thompson 		if (temp->last_frame) {
16410f7d4548SAndrew Thompson 			td_alt_next = NULL;
164202ac6454SAndrew Thompson 		} else {
164302ac6454SAndrew Thompson 			/* we use this field internally */
164402ac6454SAndrew Thompson 			td_alt_next = td_next;
164502ac6454SAndrew Thompson 		}
164602ac6454SAndrew Thompson 
164702ac6454SAndrew Thompson 		/* restore */
164802ac6454SAndrew Thompson 		temp->shortpkt = shortpkt_old;
164902ac6454SAndrew Thompson 		temp->len = len_old;
165002ac6454SAndrew Thompson 		goto restart;
165102ac6454SAndrew Thompson 	}
165202ac6454SAndrew Thompson 	temp->td = td;
165302ac6454SAndrew Thompson 	temp->td_next = td_next;
165402ac6454SAndrew Thompson }
165502ac6454SAndrew Thompson 
165602ac6454SAndrew Thompson static uhci_td_t *
1657760bc48eSAndrew Thompson uhci_setup_standard_chain(struct usb_xfer *xfer)
165802ac6454SAndrew Thompson {
165902ac6454SAndrew Thompson 	struct uhci_std_temp temp;
166002ac6454SAndrew Thompson 	uhci_td_t *td;
166102ac6454SAndrew Thompson 	uint32_t x;
166202ac6454SAndrew Thompson 
166302ac6454SAndrew Thompson 	DPRINTFN(9, "addr=%d endpt=%d sumlen=%d speed=%d\n",
1664ae60fdfbSAndrew Thompson 	    xfer->address, UE_GET_ADDR(xfer->endpointno),
1665a593f6b8SAndrew Thompson 	    xfer->sumlen, usbd_get_speed(xfer->xroot->udev));
166602ac6454SAndrew Thompson 
166702ac6454SAndrew Thompson 	temp.average = xfer->max_frame_size;
166802ac6454SAndrew Thompson 	temp.max_frame_size = xfer->max_frame_size;
166902ac6454SAndrew Thompson 
167002ac6454SAndrew Thompson 	/* toggle the DMA set we are using */
167102ac6454SAndrew Thompson 	xfer->flags_int.curr_dma_set ^= 1;
167202ac6454SAndrew Thompson 
167302ac6454SAndrew Thompson 	/* get next DMA set */
167402ac6454SAndrew Thompson 	td = xfer->td_start[xfer->flags_int.curr_dma_set];
167502ac6454SAndrew Thompson 	xfer->td_transfer_first = td;
167602ac6454SAndrew Thompson 	xfer->td_transfer_cache = td;
167702ac6454SAndrew Thompson 
167802ac6454SAndrew Thompson 	temp.td = NULL;
167902ac6454SAndrew Thompson 	temp.td_next = td;
16800f7d4548SAndrew Thompson 	temp.last_frame = 0;
168102ac6454SAndrew Thompson 	temp.setup_alt_next = xfer->flags_int.short_frames_ok;
168202ac6454SAndrew Thompson 
168302ac6454SAndrew Thompson 	uhci_mem_layout_init(&temp.ml, xfer);
168402ac6454SAndrew Thompson 
168502ac6454SAndrew Thompson 	temp.td_status =
168602ac6454SAndrew Thompson 	    htole32(UHCI_TD_ZERO_ACTLEN(UHCI_TD_SET_ERRCNT(3) |
168702ac6454SAndrew Thompson 	    UHCI_TD_ACTIVE));
168802ac6454SAndrew Thompson 
168902ac6454SAndrew Thompson 	if (xfer->xroot->udev->speed == USB_SPEED_LOW) {
169002ac6454SAndrew Thompson 		temp.td_status |= htole32(UHCI_TD_LS);
169102ac6454SAndrew Thompson 	}
169202ac6454SAndrew Thompson 	temp.td_token =
1693ae60fdfbSAndrew Thompson 	    htole32(UHCI_TD_SET_ENDPT(xfer->endpointno) |
169402ac6454SAndrew Thompson 	    UHCI_TD_SET_DEVADDR(xfer->address));
169502ac6454SAndrew Thompson 
1696ae60fdfbSAndrew Thompson 	if (xfer->endpoint->toggle_next) {
169702ac6454SAndrew Thompson 		/* DATA1 is next */
169802ac6454SAndrew Thompson 		temp.td_token |= htole32(UHCI_TD_SET_DT(1));
169902ac6454SAndrew Thompson 	}
170002ac6454SAndrew Thompson 	/* check if we should prepend a setup message */
170102ac6454SAndrew Thompson 
170202ac6454SAndrew Thompson 	if (xfer->flags_int.control_xfr) {
170302ac6454SAndrew Thompson 
170402ac6454SAndrew Thompson 		if (xfer->flags_int.control_hdr) {
170502ac6454SAndrew Thompson 
170602ac6454SAndrew Thompson 			temp.td_token &= htole32(UHCI_TD_SET_DEVADDR(0x7F) |
170702ac6454SAndrew Thompson 			    UHCI_TD_SET_ENDPT(0xF));
170802ac6454SAndrew Thompson 			temp.td_token |= htole32(UHCI_TD_PID_SETUP |
170902ac6454SAndrew Thompson 			    UHCI_TD_SET_DT(0));
171002ac6454SAndrew Thompson 
171102ac6454SAndrew Thompson 			temp.len = xfer->frlengths[0];
171202ac6454SAndrew Thompson 			temp.ml.buf_pc = xfer->frbuffers + 0;
171302ac6454SAndrew Thompson 			temp.shortpkt = temp.len ? 1 : 0;
17140f7d4548SAndrew Thompson 			/* check for last frame */
17150f7d4548SAndrew Thompson 			if (xfer->nframes == 1) {
17160f7d4548SAndrew Thompson 				/* no STATUS stage yet, SETUP is last */
17170f7d4548SAndrew Thompson 				if (xfer->flags_int.control_act) {
17180f7d4548SAndrew Thompson 					temp.last_frame = 1;
17190f7d4548SAndrew Thompson 					temp.setup_alt_next = 0;
17200f7d4548SAndrew Thompson 				}
17210f7d4548SAndrew Thompson 			}
172202ac6454SAndrew Thompson 			uhci_setup_standard_chain_sub(&temp);
172302ac6454SAndrew Thompson 		}
172402ac6454SAndrew Thompson 		x = 1;
172502ac6454SAndrew Thompson 	} else {
172602ac6454SAndrew Thompson 		x = 0;
172702ac6454SAndrew Thompson 	}
172802ac6454SAndrew Thompson 
172902ac6454SAndrew Thompson 	while (x != xfer->nframes) {
173002ac6454SAndrew Thompson 
173102ac6454SAndrew Thompson 		/* DATA0 / DATA1 message */
173202ac6454SAndrew Thompson 
173302ac6454SAndrew Thompson 		temp.len = xfer->frlengths[x];
173402ac6454SAndrew Thompson 		temp.ml.buf_pc = xfer->frbuffers + x;
173502ac6454SAndrew Thompson 
173602ac6454SAndrew Thompson 		x++;
173702ac6454SAndrew Thompson 
173802ac6454SAndrew Thompson 		if (x == xfer->nframes) {
17390f7d4548SAndrew Thompson 			if (xfer->flags_int.control_xfr) {
17400f7d4548SAndrew Thompson 				/* no STATUS stage yet, DATA is last */
17410f7d4548SAndrew Thompson 				if (xfer->flags_int.control_act) {
17420f7d4548SAndrew Thompson 					temp.last_frame = 1;
174302ac6454SAndrew Thompson 					temp.setup_alt_next = 0;
174402ac6454SAndrew Thompson 				}
17450f7d4548SAndrew Thompson 			} else {
17460f7d4548SAndrew Thompson 				temp.last_frame = 1;
17470f7d4548SAndrew Thompson 				temp.setup_alt_next = 0;
17480f7d4548SAndrew Thompson 			}
17490f7d4548SAndrew Thompson 		}
175002ac6454SAndrew Thompson 		/*
175102ac6454SAndrew Thompson 		 * Keep previous data toggle,
175202ac6454SAndrew Thompson 		 * device address and endpoint number:
175302ac6454SAndrew Thompson 		 */
175402ac6454SAndrew Thompson 
175502ac6454SAndrew Thompson 		temp.td_token &= htole32(UHCI_TD_SET_DEVADDR(0x7F) |
175602ac6454SAndrew Thompson 		    UHCI_TD_SET_ENDPT(0xF) |
175702ac6454SAndrew Thompson 		    UHCI_TD_SET_DT(1));
175802ac6454SAndrew Thompson 
175902ac6454SAndrew Thompson 		if (temp.len == 0) {
176002ac6454SAndrew Thompson 
176102ac6454SAndrew Thompson 			/* make sure that we send an USB packet */
176202ac6454SAndrew Thompson 
176302ac6454SAndrew Thompson 			temp.shortpkt = 0;
176402ac6454SAndrew Thompson 
176502ac6454SAndrew Thompson 		} else {
176602ac6454SAndrew Thompson 
176702ac6454SAndrew Thompson 			/* regular data transfer */
176802ac6454SAndrew Thompson 
176902ac6454SAndrew Thompson 			temp.shortpkt = (xfer->flags.force_short_xfer) ? 0 : 1;
177002ac6454SAndrew Thompson 		}
177102ac6454SAndrew Thompson 
177202ac6454SAndrew Thompson 		/* set endpoint direction */
177302ac6454SAndrew Thompson 
177402ac6454SAndrew Thompson 		temp.td_token |=
1775ae60fdfbSAndrew Thompson 		    (UE_GET_DIR(xfer->endpointno) == UE_DIR_IN) ?
177602ac6454SAndrew Thompson 		    htole32(UHCI_TD_PID_IN) :
177702ac6454SAndrew Thompson 		    htole32(UHCI_TD_PID_OUT);
177802ac6454SAndrew Thompson 
177902ac6454SAndrew Thompson 		uhci_setup_standard_chain_sub(&temp);
178002ac6454SAndrew Thompson 	}
178102ac6454SAndrew Thompson 
178202ac6454SAndrew Thompson 	/* check if we should append a status stage */
178302ac6454SAndrew Thompson 
178402ac6454SAndrew Thompson 	if (xfer->flags_int.control_xfr &&
178502ac6454SAndrew Thompson 	    !xfer->flags_int.control_act) {
178602ac6454SAndrew Thompson 
178702ac6454SAndrew Thompson 		/*
178802ac6454SAndrew Thompson 		 * send a DATA1 message and reverse the current endpoint
178902ac6454SAndrew Thompson 		 * direction
179002ac6454SAndrew Thompson 		 */
179102ac6454SAndrew Thompson 
179202ac6454SAndrew Thompson 		temp.td_token &= htole32(UHCI_TD_SET_DEVADDR(0x7F) |
179302ac6454SAndrew Thompson 		    UHCI_TD_SET_ENDPT(0xF) |
179402ac6454SAndrew Thompson 		    UHCI_TD_SET_DT(1));
179502ac6454SAndrew Thompson 		temp.td_token |=
1796ae60fdfbSAndrew Thompson 		    (UE_GET_DIR(xfer->endpointno) == UE_DIR_OUT) ?
179702ac6454SAndrew Thompson 		    htole32(UHCI_TD_PID_IN | UHCI_TD_SET_DT(1)) :
179802ac6454SAndrew Thompson 		    htole32(UHCI_TD_PID_OUT | UHCI_TD_SET_DT(1));
179902ac6454SAndrew Thompson 
180002ac6454SAndrew Thompson 		temp.len = 0;
180102ac6454SAndrew Thompson 		temp.ml.buf_pc = NULL;
180202ac6454SAndrew Thompson 		temp.shortpkt = 0;
18030f7d4548SAndrew Thompson 		temp.last_frame = 1;
18040f7d4548SAndrew Thompson 		temp.setup_alt_next = 0;
180502ac6454SAndrew Thompson 
180602ac6454SAndrew Thompson 		uhci_setup_standard_chain_sub(&temp);
180702ac6454SAndrew Thompson 	}
180802ac6454SAndrew Thompson 	td = temp.td;
180902ac6454SAndrew Thompson 
18100f7d4548SAndrew Thompson 	/* Ensure that last TD is terminating: */
181102ac6454SAndrew Thompson 	td->td_next = htole32(UHCI_PTR_T);
181202ac6454SAndrew Thompson 
181302ac6454SAndrew Thompson 	/* set interrupt bit */
181402ac6454SAndrew Thompson 
181502ac6454SAndrew Thompson 	td->td_status |= htole32(UHCI_TD_IOC);
181602ac6454SAndrew Thompson 
1817a593f6b8SAndrew Thompson 	usb_pc_cpu_flush(td->page_cache);
181802ac6454SAndrew Thompson 
181902ac6454SAndrew Thompson 	/* must have at least one frame! */
182002ac6454SAndrew Thompson 
182102ac6454SAndrew Thompson 	xfer->td_transfer_last = td;
182202ac6454SAndrew Thompson 
1823b850ecc1SAndrew Thompson #ifdef USB_DEBUG
182402ac6454SAndrew Thompson 	if (uhcidebug > 8) {
182502ac6454SAndrew Thompson 		DPRINTF("nexttog=%d; data before transfer:\n",
1826ae60fdfbSAndrew Thompson 		    xfer->endpoint->toggle_next);
182702ac6454SAndrew Thompson 		uhci_dump_tds(xfer->td_transfer_first);
182802ac6454SAndrew Thompson 	}
182902ac6454SAndrew Thompson #endif
183002ac6454SAndrew Thompson 	return (xfer->td_transfer_first);
183102ac6454SAndrew Thompson }
183202ac6454SAndrew Thompson 
183302ac6454SAndrew Thompson /* NOTE: "done" can be run two times in a row,
183402ac6454SAndrew Thompson  * from close and from interrupt
183502ac6454SAndrew Thompson  */
183602ac6454SAndrew Thompson 
183702ac6454SAndrew Thompson static void
1838e0a69b51SAndrew Thompson uhci_device_done(struct usb_xfer *xfer, usb_error_t error)
183902ac6454SAndrew Thompson {
1840ae60fdfbSAndrew Thompson 	struct usb_pipe_methods *methods = xfer->endpoint->methods;
184102ac6454SAndrew Thompson 	uhci_softc_t *sc = UHCI_BUS2SC(xfer->xroot->bus);
184202ac6454SAndrew Thompson 	uhci_qh_t *qh;
184302ac6454SAndrew Thompson 
184402ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
184502ac6454SAndrew Thompson 
1846ae60fdfbSAndrew Thompson 	DPRINTFN(2, "xfer=%p, endpoint=%p, error=%d\n",
1847ae60fdfbSAndrew Thompson 	    xfer, xfer->endpoint, error);
184802ac6454SAndrew Thompson 
184902ac6454SAndrew Thompson 	qh = xfer->qh_start[xfer->flags_int.curr_dma_set];
185002ac6454SAndrew Thompson 	if (qh) {
1851a593f6b8SAndrew Thompson 		usb_pc_cpu_invalidate(qh->page_cache);
185202ac6454SAndrew Thompson 	}
185302ac6454SAndrew Thompson 	if (xfer->flags_int.bandwidth_reclaimed) {
185402ac6454SAndrew Thompson 		xfer->flags_int.bandwidth_reclaimed = 0;
185502ac6454SAndrew Thompson 		uhci_rem_loop(sc);
185602ac6454SAndrew Thompson 	}
185702ac6454SAndrew Thompson 	if (methods == &uhci_device_bulk_methods) {
185802ac6454SAndrew Thompson 		UHCI_REMOVE_QH(qh, sc->sc_bulk_p_last);
185902ac6454SAndrew Thompson 	}
186002ac6454SAndrew Thompson 	if (methods == &uhci_device_ctrl_methods) {
186102ac6454SAndrew Thompson 		if (xfer->xroot->udev->speed == USB_SPEED_LOW) {
186202ac6454SAndrew Thompson 			UHCI_REMOVE_QH(qh, sc->sc_ls_ctl_p_last);
186302ac6454SAndrew Thompson 		} else {
186402ac6454SAndrew Thompson 			UHCI_REMOVE_QH(qh, sc->sc_fs_ctl_p_last);
186502ac6454SAndrew Thompson 		}
186602ac6454SAndrew Thompson 	}
186702ac6454SAndrew Thompson 	if (methods == &uhci_device_intr_methods) {
186802ac6454SAndrew Thompson 		UHCI_REMOVE_QH(qh, sc->sc_intr_p_last[xfer->qh_pos]);
186902ac6454SAndrew Thompson 	}
187002ac6454SAndrew Thompson 	/*
187102ac6454SAndrew Thompson 	 * Only finish isochronous transfers once
187202ac6454SAndrew Thompson 	 * which will update "xfer->frlengths".
187302ac6454SAndrew Thompson 	 */
187402ac6454SAndrew Thompson 	if (xfer->td_transfer_first &&
187502ac6454SAndrew Thompson 	    xfer->td_transfer_last) {
187602ac6454SAndrew Thompson 		if (methods == &uhci_device_isoc_methods) {
187702ac6454SAndrew Thompson 			uhci_isoc_done(sc, xfer);
187802ac6454SAndrew Thompson 		}
187902ac6454SAndrew Thompson 		xfer->td_transfer_first = NULL;
188002ac6454SAndrew Thompson 		xfer->td_transfer_last = NULL;
188102ac6454SAndrew Thompson 	}
188202ac6454SAndrew Thompson 	/* dequeue transfer and start next transfer */
1883a593f6b8SAndrew Thompson 	usbd_transfer_done(xfer, error);
188402ac6454SAndrew Thompson }
188502ac6454SAndrew Thompson 
188602ac6454SAndrew Thompson /*------------------------------------------------------------------------*
188702ac6454SAndrew Thompson  * uhci bulk support
188802ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
188902ac6454SAndrew Thompson static void
1890760bc48eSAndrew Thompson uhci_device_bulk_open(struct usb_xfer *xfer)
189102ac6454SAndrew Thompson {
189202ac6454SAndrew Thompson 	return;
189302ac6454SAndrew Thompson }
189402ac6454SAndrew Thompson 
189502ac6454SAndrew Thompson static void
1896760bc48eSAndrew Thompson uhci_device_bulk_close(struct usb_xfer *xfer)
189702ac6454SAndrew Thompson {
189802ac6454SAndrew Thompson 	uhci_device_done(xfer, USB_ERR_CANCELLED);
189902ac6454SAndrew Thompson }
190002ac6454SAndrew Thompson 
190102ac6454SAndrew Thompson static void
1902760bc48eSAndrew Thompson uhci_device_bulk_enter(struct usb_xfer *xfer)
190302ac6454SAndrew Thompson {
190402ac6454SAndrew Thompson 	return;
190502ac6454SAndrew Thompson }
190602ac6454SAndrew Thompson 
190702ac6454SAndrew Thompson static void
1908760bc48eSAndrew Thompson uhci_device_bulk_start(struct usb_xfer *xfer)
190902ac6454SAndrew Thompson {
191002ac6454SAndrew Thompson 	uhci_softc_t *sc = UHCI_BUS2SC(xfer->xroot->bus);
191102ac6454SAndrew Thompson 	uhci_td_t *td;
191202ac6454SAndrew Thompson 	uhci_qh_t *qh;
191302ac6454SAndrew Thompson 
191402ac6454SAndrew Thompson 	/* setup TD's */
191502ac6454SAndrew Thompson 	td = uhci_setup_standard_chain(xfer);
191602ac6454SAndrew Thompson 
191702ac6454SAndrew Thompson 	/* setup QH */
191802ac6454SAndrew Thompson 	qh = xfer->qh_start[xfer->flags_int.curr_dma_set];
191902ac6454SAndrew Thompson 
192002ac6454SAndrew Thompson 	qh->e_next = td;
192102ac6454SAndrew Thompson 	qh->qh_e_next = td->td_self;
192202ac6454SAndrew Thompson 
1923ec8f3127SAndrew Thompson 	if (xfer->xroot->udev->flags.self_suspended == 0) {
192402ac6454SAndrew Thompson 		UHCI_APPEND_QH(qh, sc->sc_bulk_p_last);
192502ac6454SAndrew Thompson 		uhci_add_loop(sc);
192602ac6454SAndrew Thompson 		xfer->flags_int.bandwidth_reclaimed = 1;
192702ac6454SAndrew Thompson 	} else {
1928a593f6b8SAndrew Thompson 		usb_pc_cpu_flush(qh->page_cache);
192902ac6454SAndrew Thompson 	}
193002ac6454SAndrew Thompson 
193102ac6454SAndrew Thompson 	/* put transfer on interrupt queue */
193202ac6454SAndrew Thompson 	uhci_transfer_intr_enqueue(xfer);
193302ac6454SAndrew Thompson }
193402ac6454SAndrew Thompson 
1935760bc48eSAndrew Thompson struct usb_pipe_methods uhci_device_bulk_methods =
193602ac6454SAndrew Thompson {
193702ac6454SAndrew Thompson 	.open = uhci_device_bulk_open,
193802ac6454SAndrew Thompson 	.close = uhci_device_bulk_close,
193902ac6454SAndrew Thompson 	.enter = uhci_device_bulk_enter,
194002ac6454SAndrew Thompson 	.start = uhci_device_bulk_start,
194102ac6454SAndrew Thompson };
194202ac6454SAndrew Thompson 
194302ac6454SAndrew Thompson /*------------------------------------------------------------------------*
194402ac6454SAndrew Thompson  * uhci control support
194502ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
194602ac6454SAndrew Thompson static void
1947760bc48eSAndrew Thompson uhci_device_ctrl_open(struct usb_xfer *xfer)
194802ac6454SAndrew Thompson {
194902ac6454SAndrew Thompson 	return;
195002ac6454SAndrew Thompson }
195102ac6454SAndrew Thompson 
195202ac6454SAndrew Thompson static void
1953760bc48eSAndrew Thompson uhci_device_ctrl_close(struct usb_xfer *xfer)
195402ac6454SAndrew Thompson {
195502ac6454SAndrew Thompson 	uhci_device_done(xfer, USB_ERR_CANCELLED);
195602ac6454SAndrew Thompson }
195702ac6454SAndrew Thompson 
195802ac6454SAndrew Thompson static void
1959760bc48eSAndrew Thompson uhci_device_ctrl_enter(struct usb_xfer *xfer)
196002ac6454SAndrew Thompson {
196102ac6454SAndrew Thompson 	return;
196202ac6454SAndrew Thompson }
196302ac6454SAndrew Thompson 
196402ac6454SAndrew Thompson static void
1965760bc48eSAndrew Thompson uhci_device_ctrl_start(struct usb_xfer *xfer)
196602ac6454SAndrew Thompson {
196702ac6454SAndrew Thompson 	uhci_softc_t *sc = UHCI_BUS2SC(xfer->xroot->bus);
196802ac6454SAndrew Thompson 	uhci_qh_t *qh;
196902ac6454SAndrew Thompson 	uhci_td_t *td;
197002ac6454SAndrew Thompson 
197102ac6454SAndrew Thompson 	/* setup TD's */
197202ac6454SAndrew Thompson 	td = uhci_setup_standard_chain(xfer);
197302ac6454SAndrew Thompson 
197402ac6454SAndrew Thompson 	/* setup QH */
197502ac6454SAndrew Thompson 	qh = xfer->qh_start[xfer->flags_int.curr_dma_set];
197602ac6454SAndrew Thompson 
197702ac6454SAndrew Thompson 	qh->e_next = td;
197802ac6454SAndrew Thompson 	qh->qh_e_next = td->td_self;
197902ac6454SAndrew Thompson 
198002ac6454SAndrew Thompson 	/*
198102ac6454SAndrew Thompson 	 * NOTE: some devices choke on bandwidth- reclamation for control
198202ac6454SAndrew Thompson 	 * transfers
198302ac6454SAndrew Thompson 	 */
1984ec8f3127SAndrew Thompson 	if (xfer->xroot->udev->flags.self_suspended == 0) {
198502ac6454SAndrew Thompson 		if (xfer->xroot->udev->speed == USB_SPEED_LOW) {
198602ac6454SAndrew Thompson 			UHCI_APPEND_QH(qh, sc->sc_ls_ctl_p_last);
198702ac6454SAndrew Thompson 		} else {
198802ac6454SAndrew Thompson 			UHCI_APPEND_QH(qh, sc->sc_fs_ctl_p_last);
198902ac6454SAndrew Thompson 		}
199002ac6454SAndrew Thompson 	} else {
1991a593f6b8SAndrew Thompson 		usb_pc_cpu_flush(qh->page_cache);
199202ac6454SAndrew Thompson 	}
199302ac6454SAndrew Thompson 	/* put transfer on interrupt queue */
199402ac6454SAndrew Thompson 	uhci_transfer_intr_enqueue(xfer);
199502ac6454SAndrew Thompson }
199602ac6454SAndrew Thompson 
1997760bc48eSAndrew Thompson struct usb_pipe_methods uhci_device_ctrl_methods =
199802ac6454SAndrew Thompson {
199902ac6454SAndrew Thompson 	.open = uhci_device_ctrl_open,
200002ac6454SAndrew Thompson 	.close = uhci_device_ctrl_close,
200102ac6454SAndrew Thompson 	.enter = uhci_device_ctrl_enter,
200202ac6454SAndrew Thompson 	.start = uhci_device_ctrl_start,
200302ac6454SAndrew Thompson };
200402ac6454SAndrew Thompson 
200502ac6454SAndrew Thompson /*------------------------------------------------------------------------*
200602ac6454SAndrew Thompson  * uhci interrupt support
200702ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
200802ac6454SAndrew Thompson static void
2009760bc48eSAndrew Thompson uhci_device_intr_open(struct usb_xfer *xfer)
201002ac6454SAndrew Thompson {
201102ac6454SAndrew Thompson 	uhci_softc_t *sc = UHCI_BUS2SC(xfer->xroot->bus);
201202ac6454SAndrew Thompson 	uint16_t best;
201302ac6454SAndrew Thompson 	uint16_t bit;
201402ac6454SAndrew Thompson 	uint16_t x;
201502ac6454SAndrew Thompson 
201602ac6454SAndrew Thompson 	best = 0;
201702ac6454SAndrew Thompson 	bit = UHCI_IFRAMELIST_COUNT / 2;
201802ac6454SAndrew Thompson 	while (bit) {
201902ac6454SAndrew Thompson 		if (xfer->interval >= bit) {
202002ac6454SAndrew Thompson 			x = bit;
202102ac6454SAndrew Thompson 			best = bit;
202202ac6454SAndrew Thompson 			while (x & bit) {
202302ac6454SAndrew Thompson 				if (sc->sc_intr_stat[x] <
202402ac6454SAndrew Thompson 				    sc->sc_intr_stat[best]) {
202502ac6454SAndrew Thompson 					best = x;
202602ac6454SAndrew Thompson 				}
202702ac6454SAndrew Thompson 				x++;
202802ac6454SAndrew Thompson 			}
202902ac6454SAndrew Thompson 			break;
203002ac6454SAndrew Thompson 		}
203102ac6454SAndrew Thompson 		bit >>= 1;
203202ac6454SAndrew Thompson 	}
203302ac6454SAndrew Thompson 
203402ac6454SAndrew Thompson 	sc->sc_intr_stat[best]++;
203502ac6454SAndrew Thompson 	xfer->qh_pos = best;
203602ac6454SAndrew Thompson 
203702ac6454SAndrew Thompson 	DPRINTFN(3, "best=%d interval=%d\n",
203802ac6454SAndrew Thompson 	    best, xfer->interval);
203902ac6454SAndrew Thompson }
204002ac6454SAndrew Thompson 
204102ac6454SAndrew Thompson static void
2042760bc48eSAndrew Thompson uhci_device_intr_close(struct usb_xfer *xfer)
204302ac6454SAndrew Thompson {
204402ac6454SAndrew Thompson 	uhci_softc_t *sc = UHCI_BUS2SC(xfer->xroot->bus);
204502ac6454SAndrew Thompson 
204602ac6454SAndrew Thompson 	sc->sc_intr_stat[xfer->qh_pos]--;
204702ac6454SAndrew Thompson 
204802ac6454SAndrew Thompson 	uhci_device_done(xfer, USB_ERR_CANCELLED);
204902ac6454SAndrew Thompson }
205002ac6454SAndrew Thompson 
205102ac6454SAndrew Thompson static void
2052760bc48eSAndrew Thompson uhci_device_intr_enter(struct usb_xfer *xfer)
205302ac6454SAndrew Thompson {
205402ac6454SAndrew Thompson 	return;
205502ac6454SAndrew Thompson }
205602ac6454SAndrew Thompson 
205702ac6454SAndrew Thompson static void
2058760bc48eSAndrew Thompson uhci_device_intr_start(struct usb_xfer *xfer)
205902ac6454SAndrew Thompson {
206002ac6454SAndrew Thompson 	uhci_softc_t *sc = UHCI_BUS2SC(xfer->xroot->bus);
206102ac6454SAndrew Thompson 	uhci_qh_t *qh;
206202ac6454SAndrew Thompson 	uhci_td_t *td;
206302ac6454SAndrew Thompson 
206402ac6454SAndrew Thompson 	/* setup TD's */
206502ac6454SAndrew Thompson 	td = uhci_setup_standard_chain(xfer);
206602ac6454SAndrew Thompson 
206702ac6454SAndrew Thompson 	/* setup QH */
206802ac6454SAndrew Thompson 	qh = xfer->qh_start[xfer->flags_int.curr_dma_set];
206902ac6454SAndrew Thompson 
207002ac6454SAndrew Thompson 	qh->e_next = td;
207102ac6454SAndrew Thompson 	qh->qh_e_next = td->td_self;
207202ac6454SAndrew Thompson 
2073ec8f3127SAndrew Thompson 	if (xfer->xroot->udev->flags.self_suspended == 0) {
207402ac6454SAndrew Thompson 		/* enter QHs into the controller data structures */
207502ac6454SAndrew Thompson 		UHCI_APPEND_QH(qh, sc->sc_intr_p_last[xfer->qh_pos]);
207602ac6454SAndrew Thompson 	} else {
2077a593f6b8SAndrew Thompson 		usb_pc_cpu_flush(qh->page_cache);
207802ac6454SAndrew Thompson 	}
207902ac6454SAndrew Thompson 
208002ac6454SAndrew Thompson 	/* put transfer on interrupt queue */
208102ac6454SAndrew Thompson 	uhci_transfer_intr_enqueue(xfer);
208202ac6454SAndrew Thompson }
208302ac6454SAndrew Thompson 
2084760bc48eSAndrew Thompson struct usb_pipe_methods uhci_device_intr_methods =
208502ac6454SAndrew Thompson {
208602ac6454SAndrew Thompson 	.open = uhci_device_intr_open,
208702ac6454SAndrew Thompson 	.close = uhci_device_intr_close,
208802ac6454SAndrew Thompson 	.enter = uhci_device_intr_enter,
208902ac6454SAndrew Thompson 	.start = uhci_device_intr_start,
209002ac6454SAndrew Thompson };
209102ac6454SAndrew Thompson 
209202ac6454SAndrew Thompson /*------------------------------------------------------------------------*
209302ac6454SAndrew Thompson  * uhci isochronous support
209402ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
209502ac6454SAndrew Thompson static void
2096760bc48eSAndrew Thompson uhci_device_isoc_open(struct usb_xfer *xfer)
209702ac6454SAndrew Thompson {
209802ac6454SAndrew Thompson 	uhci_td_t *td;
209902ac6454SAndrew Thompson 	uint32_t td_token;
210002ac6454SAndrew Thompson 	uint8_t ds;
210102ac6454SAndrew Thompson 
210202ac6454SAndrew Thompson 	td_token =
2103ae60fdfbSAndrew Thompson 	    (UE_GET_DIR(xfer->endpointno) == UE_DIR_IN) ?
2104ae60fdfbSAndrew Thompson 	    UHCI_TD_IN(0, xfer->endpointno, xfer->address, 0) :
2105ae60fdfbSAndrew Thompson 	    UHCI_TD_OUT(0, xfer->endpointno, xfer->address, 0);
210602ac6454SAndrew Thompson 
210702ac6454SAndrew Thompson 	td_token = htole32(td_token);
210802ac6454SAndrew Thompson 
210902ac6454SAndrew Thompson 	/* initialize all TD's */
211002ac6454SAndrew Thompson 
211102ac6454SAndrew Thompson 	for (ds = 0; ds != 2; ds++) {
211202ac6454SAndrew Thompson 
211302ac6454SAndrew Thompson 		for (td = xfer->td_start[ds]; td; td = td->obj_next) {
211402ac6454SAndrew Thompson 
211502ac6454SAndrew Thompson 			/* mark TD as inactive */
211602ac6454SAndrew Thompson 			td->td_status = htole32(UHCI_TD_IOS);
211702ac6454SAndrew Thompson 			td->td_token = td_token;
211802ac6454SAndrew Thompson 
2119a593f6b8SAndrew Thompson 			usb_pc_cpu_flush(td->page_cache);
212002ac6454SAndrew Thompson 		}
212102ac6454SAndrew Thompson 	}
212202ac6454SAndrew Thompson }
212302ac6454SAndrew Thompson 
212402ac6454SAndrew Thompson static void
2125760bc48eSAndrew Thompson uhci_device_isoc_close(struct usb_xfer *xfer)
212602ac6454SAndrew Thompson {
212702ac6454SAndrew Thompson 	uhci_device_done(xfer, USB_ERR_CANCELLED);
212802ac6454SAndrew Thompson }
212902ac6454SAndrew Thompson 
213002ac6454SAndrew Thompson static void
2131760bc48eSAndrew Thompson uhci_device_isoc_enter(struct usb_xfer *xfer)
213202ac6454SAndrew Thompson {
213302ac6454SAndrew Thompson 	struct uhci_mem_layout ml;
213402ac6454SAndrew Thompson 	uhci_softc_t *sc = UHCI_BUS2SC(xfer->xroot->bus);
213502ac6454SAndrew Thompson 	uint32_t nframes;
213602ac6454SAndrew Thompson 	uint32_t temp;
213702ac6454SAndrew Thompson 	uint32_t *plen;
213802ac6454SAndrew Thompson 
2139b850ecc1SAndrew Thompson #ifdef USB_DEBUG
214002ac6454SAndrew Thompson 	uint8_t once = 1;
214102ac6454SAndrew Thompson 
214202ac6454SAndrew Thompson #endif
214302ac6454SAndrew Thompson 	uhci_td_t *td;
214402ac6454SAndrew Thompson 	uhci_td_t *td_last = NULL;
214502ac6454SAndrew Thompson 	uhci_td_t **pp_last;
214602ac6454SAndrew Thompson 
214702ac6454SAndrew Thompson 	DPRINTFN(6, "xfer=%p next=%d nframes=%d\n",
2148ae60fdfbSAndrew Thompson 	    xfer, xfer->endpoint->isoc_next, xfer->nframes);
214902ac6454SAndrew Thompson 
215002ac6454SAndrew Thompson 	nframes = UREAD2(sc, UHCI_FRNUM);
215102ac6454SAndrew Thompson 
2152ae60fdfbSAndrew Thompson 	temp = (nframes - xfer->endpoint->isoc_next) &
215302ac6454SAndrew Thompson 	    (UHCI_VFRAMELIST_COUNT - 1);
215402ac6454SAndrew Thompson 
2155ae60fdfbSAndrew Thompson 	if ((xfer->endpoint->is_synced == 0) ||
215602ac6454SAndrew Thompson 	    (temp < xfer->nframes)) {
215702ac6454SAndrew Thompson 		/*
215802ac6454SAndrew Thompson 		 * If there is data underflow or the pipe queue is empty we
215902ac6454SAndrew Thompson 		 * schedule the transfer a few frames ahead of the current
216002ac6454SAndrew Thompson 		 * frame position. Else two isochronous transfers might
216102ac6454SAndrew Thompson 		 * overlap.
216202ac6454SAndrew Thompson 		 */
2163ae60fdfbSAndrew Thompson 		xfer->endpoint->isoc_next = (nframes + 3) & (UHCI_VFRAMELIST_COUNT - 1);
2164ae60fdfbSAndrew Thompson 		xfer->endpoint->is_synced = 1;
2165ae60fdfbSAndrew Thompson 		DPRINTFN(3, "start next=%d\n", xfer->endpoint->isoc_next);
216602ac6454SAndrew Thompson 	}
216702ac6454SAndrew Thompson 	/*
216802ac6454SAndrew Thompson 	 * compute how many milliseconds the insertion is ahead of the
216902ac6454SAndrew Thompson 	 * current frame position:
217002ac6454SAndrew Thompson 	 */
2171ae60fdfbSAndrew Thompson 	temp = (xfer->endpoint->isoc_next - nframes) &
217202ac6454SAndrew Thompson 	    (UHCI_VFRAMELIST_COUNT - 1);
217302ac6454SAndrew Thompson 
217402ac6454SAndrew Thompson 	/*
217502ac6454SAndrew Thompson 	 * pre-compute when the isochronous transfer will be finished:
217602ac6454SAndrew Thompson 	 */
217702ac6454SAndrew Thompson 	xfer->isoc_time_complete =
2178a593f6b8SAndrew Thompson 	    usb_isoc_time_expand(&sc->sc_bus, nframes) + temp +
217902ac6454SAndrew Thompson 	    xfer->nframes;
218002ac6454SAndrew Thompson 
218102ac6454SAndrew Thompson 	/* get the real number of frames */
218202ac6454SAndrew Thompson 
218302ac6454SAndrew Thompson 	nframes = xfer->nframes;
218402ac6454SAndrew Thompson 
218502ac6454SAndrew Thompson 	uhci_mem_layout_init(&ml, xfer);
218602ac6454SAndrew Thompson 
218702ac6454SAndrew Thompson 	plen = xfer->frlengths;
218802ac6454SAndrew Thompson 
218902ac6454SAndrew Thompson 	/* toggle the DMA set we are using */
219002ac6454SAndrew Thompson 	xfer->flags_int.curr_dma_set ^= 1;
219102ac6454SAndrew Thompson 
219202ac6454SAndrew Thompson 	/* get next DMA set */
219302ac6454SAndrew Thompson 	td = xfer->td_start[xfer->flags_int.curr_dma_set];
219402ac6454SAndrew Thompson 	xfer->td_transfer_first = td;
219502ac6454SAndrew Thompson 
2196ae60fdfbSAndrew Thompson 	pp_last = &sc->sc_isoc_p_last[xfer->endpoint->isoc_next];
219702ac6454SAndrew Thompson 
219802ac6454SAndrew Thompson 	/* store starting position */
219902ac6454SAndrew Thompson 
2200ae60fdfbSAndrew Thompson 	xfer->qh_pos = xfer->endpoint->isoc_next;
220102ac6454SAndrew Thompson 
220202ac6454SAndrew Thompson 	while (nframes--) {
220302ac6454SAndrew Thompson 		if (td == NULL) {
220402ac6454SAndrew Thompson 			panic("%s:%d: out of TD's\n",
220502ac6454SAndrew Thompson 			    __FUNCTION__, __LINE__);
220602ac6454SAndrew Thompson 		}
220702ac6454SAndrew Thompson 		if (pp_last >= &sc->sc_isoc_p_last[UHCI_VFRAMELIST_COUNT]) {
220802ac6454SAndrew Thompson 			pp_last = &sc->sc_isoc_p_last[0];
220902ac6454SAndrew Thompson 		}
221002ac6454SAndrew Thompson 		if (*plen > xfer->max_frame_size) {
2211b850ecc1SAndrew Thompson #ifdef USB_DEBUG
221202ac6454SAndrew Thompson 			if (once) {
221302ac6454SAndrew Thompson 				once = 0;
221402ac6454SAndrew Thompson 				printf("%s: frame length(%d) exceeds %d "
221502ac6454SAndrew Thompson 				    "bytes (frame truncated)\n",
221602ac6454SAndrew Thompson 				    __FUNCTION__, *plen,
221702ac6454SAndrew Thompson 				    xfer->max_frame_size);
221802ac6454SAndrew Thompson 			}
221902ac6454SAndrew Thompson #endif
222002ac6454SAndrew Thompson 			*plen = xfer->max_frame_size;
222102ac6454SAndrew Thompson 		}
222202ac6454SAndrew Thompson 		/* reuse td_token from last transfer */
222302ac6454SAndrew Thompson 
222402ac6454SAndrew Thompson 		td->td_token &= htole32(~UHCI_TD_MAXLEN_MASK);
222502ac6454SAndrew Thompson 		td->td_token |= htole32(UHCI_TD_SET_MAXLEN(*plen));
222602ac6454SAndrew Thompson 
222702ac6454SAndrew Thompson 		td->len = *plen;
222802ac6454SAndrew Thompson 
222902ac6454SAndrew Thompson 		if (td->len == 0) {
223002ac6454SAndrew Thompson 			/*
223102ac6454SAndrew Thompson 			 * Do not call "uhci_mem_layout_fixup()" when the
223202ac6454SAndrew Thompson 			 * length is zero!
223302ac6454SAndrew Thompson 			 */
223402ac6454SAndrew Thompson 			td->td_buffer = 0;
223502ac6454SAndrew Thompson 			td->fix_pc = NULL;
223602ac6454SAndrew Thompson 
223702ac6454SAndrew Thompson 		} else {
223802ac6454SAndrew Thompson 
223902ac6454SAndrew Thompson 			/* fill out buffer pointer and do fixup, if any */
224002ac6454SAndrew Thompson 
224102ac6454SAndrew Thompson 			uhci_mem_layout_fixup(&ml, td);
224202ac6454SAndrew Thompson 
224302ac6454SAndrew Thompson 		}
224402ac6454SAndrew Thompson 
224502ac6454SAndrew Thompson 		/* update status */
224602ac6454SAndrew Thompson 		if (nframes == 0) {
224702ac6454SAndrew Thompson 			td->td_status = htole32
224802ac6454SAndrew Thompson 			    (UHCI_TD_ZERO_ACTLEN
224902ac6454SAndrew Thompson 			    (UHCI_TD_SET_ERRCNT(0) |
225002ac6454SAndrew Thompson 			    UHCI_TD_ACTIVE |
225102ac6454SAndrew Thompson 			    UHCI_TD_IOS |
225202ac6454SAndrew Thompson 			    UHCI_TD_IOC));
225302ac6454SAndrew Thompson 		} else {
225402ac6454SAndrew Thompson 			td->td_status = htole32
225502ac6454SAndrew Thompson 			    (UHCI_TD_ZERO_ACTLEN
225602ac6454SAndrew Thompson 			    (UHCI_TD_SET_ERRCNT(0) |
225702ac6454SAndrew Thompson 			    UHCI_TD_ACTIVE |
225802ac6454SAndrew Thompson 			    UHCI_TD_IOS));
225902ac6454SAndrew Thompson 		}
226002ac6454SAndrew Thompson 
2261a593f6b8SAndrew Thompson 		usb_pc_cpu_flush(td->page_cache);
226202ac6454SAndrew Thompson 
2263b850ecc1SAndrew Thompson #ifdef USB_DEBUG
226402ac6454SAndrew Thompson 		if (uhcidebug > 5) {
226502ac6454SAndrew Thompson 			DPRINTF("TD %d\n", nframes);
226602ac6454SAndrew Thompson 			uhci_dump_td(td);
226702ac6454SAndrew Thompson 		}
226802ac6454SAndrew Thompson #endif
226902ac6454SAndrew Thompson 		/* insert TD into schedule */
227002ac6454SAndrew Thompson 		UHCI_APPEND_TD(td, *pp_last);
227102ac6454SAndrew Thompson 		pp_last++;
227202ac6454SAndrew Thompson 
227302ac6454SAndrew Thompson 		plen++;
227402ac6454SAndrew Thompson 		td_last = td;
227502ac6454SAndrew Thompson 		td = td->obj_next;
227602ac6454SAndrew Thompson 	}
227702ac6454SAndrew Thompson 
227802ac6454SAndrew Thompson 	xfer->td_transfer_last = td_last;
227902ac6454SAndrew Thompson 
228002ac6454SAndrew Thompson 	/* update isoc_next */
2281ae60fdfbSAndrew Thompson 	xfer->endpoint->isoc_next = (pp_last - &sc->sc_isoc_p_last[0]) &
228202ac6454SAndrew Thompson 	    (UHCI_VFRAMELIST_COUNT - 1);
228302ac6454SAndrew Thompson }
228402ac6454SAndrew Thompson 
228502ac6454SAndrew Thompson static void
2286760bc48eSAndrew Thompson uhci_device_isoc_start(struct usb_xfer *xfer)
228702ac6454SAndrew Thompson {
228802ac6454SAndrew Thompson 	/* put transfer on interrupt queue */
228902ac6454SAndrew Thompson 	uhci_transfer_intr_enqueue(xfer);
229002ac6454SAndrew Thompson }
229102ac6454SAndrew Thompson 
2292760bc48eSAndrew Thompson struct usb_pipe_methods uhci_device_isoc_methods =
229302ac6454SAndrew Thompson {
229402ac6454SAndrew Thompson 	.open = uhci_device_isoc_open,
229502ac6454SAndrew Thompson 	.close = uhci_device_isoc_close,
229602ac6454SAndrew Thompson 	.enter = uhci_device_isoc_enter,
229702ac6454SAndrew Thompson 	.start = uhci_device_isoc_start,
229802ac6454SAndrew Thompson };
229902ac6454SAndrew Thompson 
230002ac6454SAndrew Thompson /*------------------------------------------------------------------------*
230102ac6454SAndrew Thompson  * uhci root control support
230202ac6454SAndrew Thompson  *------------------------------------------------------------------------*
230339307315SAndrew Thompson  * Simulate a hardware hub by handling all the necessary requests.
230402ac6454SAndrew Thompson  *------------------------------------------------------------------------*/
230502ac6454SAndrew Thompson 
230602ac6454SAndrew Thompson static const
2307760bc48eSAndrew Thompson struct usb_device_descriptor uhci_devd =
230802ac6454SAndrew Thompson {
2309760bc48eSAndrew Thompson 	sizeof(struct usb_device_descriptor),
231002ac6454SAndrew Thompson 	UDESC_DEVICE,			/* type */
231102ac6454SAndrew Thompson 	{0x00, 0x01},			/* USB version */
231202ac6454SAndrew Thompson 	UDCLASS_HUB,			/* class */
231302ac6454SAndrew Thompson 	UDSUBCLASS_HUB,			/* subclass */
231402ac6454SAndrew Thompson 	UDPROTO_FSHUB,			/* protocol */
231502ac6454SAndrew Thompson 	64,				/* max packet */
231602ac6454SAndrew Thompson 	{0}, {0}, {0x00, 0x01},		/* device id */
231702ac6454SAndrew Thompson 	1, 2, 0,			/* string indicies */
231802ac6454SAndrew Thompson 	1				/* # of configurations */
231902ac6454SAndrew Thompson };
232002ac6454SAndrew Thompson 
232102ac6454SAndrew Thompson static const struct uhci_config_desc uhci_confd = {
232202ac6454SAndrew Thompson 	.confd = {
2323760bc48eSAndrew Thompson 		.bLength = sizeof(struct usb_config_descriptor),
232402ac6454SAndrew Thompson 		.bDescriptorType = UDESC_CONFIG,
232502ac6454SAndrew Thompson 		.wTotalLength[0] = sizeof(uhci_confd),
232602ac6454SAndrew Thompson 		.bNumInterface = 1,
232702ac6454SAndrew Thompson 		.bConfigurationValue = 1,
232802ac6454SAndrew Thompson 		.iConfiguration = 0,
232902ac6454SAndrew Thompson 		.bmAttributes = UC_SELF_POWERED,
233002ac6454SAndrew Thompson 		.bMaxPower = 0		/* max power */
233102ac6454SAndrew Thompson 	},
233202ac6454SAndrew Thompson 	.ifcd = {
2333760bc48eSAndrew Thompson 		.bLength = sizeof(struct usb_interface_descriptor),
233402ac6454SAndrew Thompson 		.bDescriptorType = UDESC_INTERFACE,
233502ac6454SAndrew Thompson 		.bNumEndpoints = 1,
233602ac6454SAndrew Thompson 		.bInterfaceClass = UICLASS_HUB,
233702ac6454SAndrew Thompson 		.bInterfaceSubClass = UISUBCLASS_HUB,
233802ac6454SAndrew Thompson 		.bInterfaceProtocol = UIPROTO_FSHUB,
233902ac6454SAndrew Thompson 	},
234002ac6454SAndrew Thompson 	.endpd = {
2341760bc48eSAndrew Thompson 		.bLength = sizeof(struct usb_endpoint_descriptor),
234202ac6454SAndrew Thompson 		.bDescriptorType = UDESC_ENDPOINT,
234302ac6454SAndrew Thompson 		.bEndpointAddress = UE_DIR_IN | UHCI_INTR_ENDPT,
234402ac6454SAndrew Thompson 		.bmAttributes = UE_INTERRUPT,
234502ac6454SAndrew Thompson 		.wMaxPacketSize[0] = 8,	/* max packet (63 ports) */
234602ac6454SAndrew Thompson 		.bInterval = 255,
234702ac6454SAndrew Thompson 	},
234802ac6454SAndrew Thompson };
234902ac6454SAndrew Thompson 
235002ac6454SAndrew Thompson static const
2351760bc48eSAndrew Thompson struct usb_hub_descriptor_min uhci_hubd_piix =
235202ac6454SAndrew Thompson {
23536d917491SHans Petter Selasky 	.bDescLength = sizeof(uhci_hubd_piix),
23546d917491SHans Petter Selasky 	.bDescriptorType = UDESC_HUB,
23556d917491SHans Petter Selasky 	.bNbrPorts = 2,
23566d917491SHans Petter Selasky 	.wHubCharacteristics = {UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL, 0},
23576d917491SHans Petter Selasky 	.bPwrOn2PwrGood = 50,
235802ac6454SAndrew Thompson };
235902ac6454SAndrew Thompson 
236002ac6454SAndrew Thompson /*
236102ac6454SAndrew Thompson  * The USB hub protocol requires that SET_FEATURE(PORT_RESET) also
236202ac6454SAndrew Thompson  * enables the port, and also states that SET_FEATURE(PORT_ENABLE)
236302ac6454SAndrew Thompson  * should not be used by the USB subsystem.  As we cannot issue a
236402ac6454SAndrew Thompson  * SET_FEATURE(PORT_ENABLE) externally, we must ensure that the port
236502ac6454SAndrew Thompson  * will be enabled as part of the reset.
236602ac6454SAndrew Thompson  *
236702ac6454SAndrew Thompson  * On the VT83C572, the port cannot be successfully enabled until the
236802ac6454SAndrew Thompson  * outstanding "port enable change" and "connection status change"
236902ac6454SAndrew Thompson  * events have been reset.
237002ac6454SAndrew Thompson  */
2371e0a69b51SAndrew Thompson static usb_error_t
23724a35cda7SAndrew Thompson uhci_portreset(uhci_softc_t *sc, uint16_t index)
237302ac6454SAndrew Thompson {
237402ac6454SAndrew Thompson 	uint16_t port;
237502ac6454SAndrew Thompson 	uint16_t x;
237602ac6454SAndrew Thompson 	uint8_t lim;
237702ac6454SAndrew Thompson 
237802ac6454SAndrew Thompson 	if (index == 1)
237902ac6454SAndrew Thompson 		port = UHCI_PORTSC1;
238002ac6454SAndrew Thompson 	else if (index == 2)
238102ac6454SAndrew Thompson 		port = UHCI_PORTSC2;
238202ac6454SAndrew Thompson 	else
238302ac6454SAndrew Thompson 		return (USB_ERR_IOERROR);
238402ac6454SAndrew Thompson 
238502ac6454SAndrew Thompson 	/*
238602ac6454SAndrew Thompson 	 * Before we do anything, turn on SOF messages on the USB
238702ac6454SAndrew Thompson 	 * BUS. Some USB devices do not cope without them!
238802ac6454SAndrew Thompson 	 */
2389b9c81a5dSAndrew Thompson 	uhci_restart(sc);
239002ac6454SAndrew Thompson 
239102ac6454SAndrew Thompson 	x = URWMASK(UREAD2(sc, port));
239202ac6454SAndrew Thompson 	UWRITE2(sc, port, x | UHCI_PORTSC_PR);
239302ac6454SAndrew Thompson 
2394a593f6b8SAndrew Thompson 	usb_pause_mtx(&sc->sc_bus.bus_mtx,
239537506412SHans Petter Selasky 	    USB_MS_TO_TICKS(usb_port_root_reset_delay));
239602ac6454SAndrew Thompson 
239702ac6454SAndrew Thompson 	DPRINTFN(4, "uhci port %d reset, status0 = 0x%04x\n",
239802ac6454SAndrew Thompson 	    index, UREAD2(sc, port));
239902ac6454SAndrew Thompson 
240002ac6454SAndrew Thompson 	x = URWMASK(UREAD2(sc, port));
240102ac6454SAndrew Thompson 	UWRITE2(sc, port, x & ~UHCI_PORTSC_PR);
240202ac6454SAndrew Thompson 
240302ac6454SAndrew Thompson 
240402ac6454SAndrew Thompson 	mtx_unlock(&sc->sc_bus.bus_mtx);
240502ac6454SAndrew Thompson 
240602ac6454SAndrew Thompson 	/*
240702ac6454SAndrew Thompson 	 * This delay needs to be exactly 100us, else some USB devices
240802ac6454SAndrew Thompson 	 * fail to attach!
240902ac6454SAndrew Thompson 	 */
241002ac6454SAndrew Thompson 	DELAY(100);
241102ac6454SAndrew Thompson 
241202ac6454SAndrew Thompson 	mtx_lock(&sc->sc_bus.bus_mtx);
241302ac6454SAndrew Thompson 
241402ac6454SAndrew Thompson 	DPRINTFN(4, "uhci port %d reset, status1 = 0x%04x\n",
241502ac6454SAndrew Thompson 	    index, UREAD2(sc, port));
241602ac6454SAndrew Thompson 
241702ac6454SAndrew Thompson 	x = URWMASK(UREAD2(sc, port));
241802ac6454SAndrew Thompson 	UWRITE2(sc, port, x | UHCI_PORTSC_PE);
241902ac6454SAndrew Thompson 
242002ac6454SAndrew Thompson 	for (lim = 0; lim < 12; lim++) {
242102ac6454SAndrew Thompson 
2422a593f6b8SAndrew Thompson 		usb_pause_mtx(&sc->sc_bus.bus_mtx,
242337506412SHans Petter Selasky 		    USB_MS_TO_TICKS(usb_port_reset_delay));
242402ac6454SAndrew Thompson 
242502ac6454SAndrew Thompson 		x = UREAD2(sc, port);
242602ac6454SAndrew Thompson 
242702ac6454SAndrew Thompson 		DPRINTFN(4, "uhci port %d iteration %u, status = 0x%04x\n",
242802ac6454SAndrew Thompson 		    index, lim, x);
242902ac6454SAndrew Thompson 
243002ac6454SAndrew Thompson 		if (!(x & UHCI_PORTSC_CCS)) {
243102ac6454SAndrew Thompson 			/*
243202ac6454SAndrew Thompson 			 * No device is connected (or was disconnected
243302ac6454SAndrew Thompson 			 * during reset).  Consider the port reset.
243402ac6454SAndrew Thompson 			 * The delay must be long enough to ensure on
243502ac6454SAndrew Thompson 			 * the initial iteration that the device
243602ac6454SAndrew Thompson 			 * connection will have been registered.  50ms
243702ac6454SAndrew Thompson 			 * appears to be sufficient, but 20ms is not.
243802ac6454SAndrew Thompson 			 */
243902ac6454SAndrew Thompson 			DPRINTFN(4, "uhci port %d loop %u, device detached\n",
244002ac6454SAndrew Thompson 			    index, lim);
244102ac6454SAndrew Thompson 			goto done;
244202ac6454SAndrew Thompson 		}
244302ac6454SAndrew Thompson 		if (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)) {
244402ac6454SAndrew Thompson 			/*
244502ac6454SAndrew Thompson 			 * Port enabled changed and/or connection
244602ac6454SAndrew Thompson 			 * status changed were set.  Reset either or
244702ac6454SAndrew Thompson 			 * both raised flags (by writing a 1 to that
244802ac6454SAndrew Thompson 			 * bit), and wait again for state to settle.
244902ac6454SAndrew Thompson 			 */
245002ac6454SAndrew Thompson 			UWRITE2(sc, port, URWMASK(x) |
245102ac6454SAndrew Thompson 			    (x & (UHCI_PORTSC_POEDC | UHCI_PORTSC_CSC)));
245202ac6454SAndrew Thompson 			continue;
245302ac6454SAndrew Thompson 		}
245402ac6454SAndrew Thompson 		if (x & UHCI_PORTSC_PE) {
245502ac6454SAndrew Thompson 			/* port is enabled */
245602ac6454SAndrew Thompson 			goto done;
245702ac6454SAndrew Thompson 		}
245802ac6454SAndrew Thompson 		UWRITE2(sc, port, URWMASK(x) | UHCI_PORTSC_PE);
245902ac6454SAndrew Thompson 	}
246002ac6454SAndrew Thompson 
246102ac6454SAndrew Thompson 	DPRINTFN(2, "uhci port %d reset timed out\n", index);
246202ac6454SAndrew Thompson 	return (USB_ERR_TIMEOUT);
246302ac6454SAndrew Thompson 
246402ac6454SAndrew Thompson done:
246502ac6454SAndrew Thompson 	DPRINTFN(4, "uhci port %d reset, status2 = 0x%04x\n",
246602ac6454SAndrew Thompson 	    index, UREAD2(sc, port));
246702ac6454SAndrew Thompson 
246802ac6454SAndrew Thompson 	sc->sc_isreset = 1;
246902ac6454SAndrew Thompson 	return (USB_ERR_NORMAL_COMPLETION);
247002ac6454SAndrew Thompson }
247102ac6454SAndrew Thompson 
2472e0a69b51SAndrew Thompson static usb_error_t
2473760bc48eSAndrew Thompson uhci_roothub_exec(struct usb_device *udev,
2474760bc48eSAndrew Thompson     struct usb_device_request *req, const void **pptr, uint16_t *plength)
247502ac6454SAndrew Thompson {
2476459d369eSAndrew Thompson 	uhci_softc_t *sc = UHCI_BUS2SC(udev->bus);
2477459d369eSAndrew Thompson 	const void *ptr;
2478459d369eSAndrew Thompson 	const char *str_ptr;
247902ac6454SAndrew Thompson 	uint16_t x;
248002ac6454SAndrew Thompson 	uint16_t port;
248102ac6454SAndrew Thompson 	uint16_t value;
248202ac6454SAndrew Thompson 	uint16_t index;
248302ac6454SAndrew Thompson 	uint16_t status;
248402ac6454SAndrew Thompson 	uint16_t change;
2485459d369eSAndrew Thompson 	uint16_t len;
2486e0a69b51SAndrew Thompson 	usb_error_t err;
248702ac6454SAndrew Thompson 
248802ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
248902ac6454SAndrew Thompson 
249002ac6454SAndrew Thompson 	/* buffer reset */
2491459d369eSAndrew Thompson 	ptr = (const void *)&sc->sc_hub_desc.temp;
2492459d369eSAndrew Thompson 	len = 0;
2493459d369eSAndrew Thompson 	err = 0;
249402ac6454SAndrew Thompson 
2495459d369eSAndrew Thompson 	value = UGETW(req->wValue);
2496459d369eSAndrew Thompson 	index = UGETW(req->wIndex);
249702ac6454SAndrew Thompson 
249802ac6454SAndrew Thompson 	DPRINTFN(3, "type=0x%02x request=0x%02x wLen=0x%04x "
249902ac6454SAndrew Thompson 	    "wValue=0x%04x wIndex=0x%04x\n",
2500459d369eSAndrew Thompson 	    req->bmRequestType, req->bRequest,
2501459d369eSAndrew Thompson 	    UGETW(req->wLength), value, index);
250202ac6454SAndrew Thompson 
250302ac6454SAndrew Thompson #define	C(x,y) ((x) | ((y) << 8))
2504459d369eSAndrew Thompson 	switch (C(req->bRequest, req->bmRequestType)) {
250502ac6454SAndrew Thompson 	case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE):
250602ac6454SAndrew Thompson 	case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE):
250702ac6454SAndrew Thompson 	case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT):
250802ac6454SAndrew Thompson 		/*
250902ac6454SAndrew Thompson 		 * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops
251002ac6454SAndrew Thompson 		 * for the integrated root hub.
251102ac6454SAndrew Thompson 		 */
251202ac6454SAndrew Thompson 		break;
251302ac6454SAndrew Thompson 	case C(UR_GET_CONFIG, UT_READ_DEVICE):
2514459d369eSAndrew Thompson 		len = 1;
251502ac6454SAndrew Thompson 		sc->sc_hub_desc.temp[0] = sc->sc_conf;
251602ac6454SAndrew Thompson 		break;
251702ac6454SAndrew Thompson 	case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE):
251802ac6454SAndrew Thompson 		switch (value >> 8) {
251902ac6454SAndrew Thompson 		case UDESC_DEVICE:
252002ac6454SAndrew Thompson 			if ((value & 0xff) != 0) {
2521459d369eSAndrew Thompson 				err = USB_ERR_IOERROR;
252202ac6454SAndrew Thompson 				goto done;
252302ac6454SAndrew Thompson 			}
2524459d369eSAndrew Thompson 			len = sizeof(uhci_devd);
2525459d369eSAndrew Thompson 			ptr = (const void *)&uhci_devd;
252602ac6454SAndrew Thompson 			break;
252702ac6454SAndrew Thompson 
252802ac6454SAndrew Thompson 		case UDESC_CONFIG:
252902ac6454SAndrew Thompson 			if ((value & 0xff) != 0) {
2530459d369eSAndrew Thompson 				err = USB_ERR_IOERROR;
253102ac6454SAndrew Thompson 				goto done;
253202ac6454SAndrew Thompson 			}
2533459d369eSAndrew Thompson 			len = sizeof(uhci_confd);
2534459d369eSAndrew Thompson 			ptr = (const void *)&uhci_confd;
253502ac6454SAndrew Thompson 			break;
253602ac6454SAndrew Thompson 
253702ac6454SAndrew Thompson 		case UDESC_STRING:
253802ac6454SAndrew Thompson 			switch (value & 0xff) {
253902ac6454SAndrew Thompson 			case 0:	/* Language table */
2540459d369eSAndrew Thompson 				str_ptr = "\001";
254102ac6454SAndrew Thompson 				break;
254202ac6454SAndrew Thompson 
254302ac6454SAndrew Thompson 			case 1:	/* Vendor */
2544459d369eSAndrew Thompson 				str_ptr = sc->sc_vendor;
254502ac6454SAndrew Thompson 				break;
254602ac6454SAndrew Thompson 
254702ac6454SAndrew Thompson 			case 2:	/* Product */
2548459d369eSAndrew Thompson 				str_ptr = "UHCI root HUB";
254902ac6454SAndrew Thompson 				break;
255002ac6454SAndrew Thompson 
255102ac6454SAndrew Thompson 			default:
2552459d369eSAndrew Thompson 				str_ptr = "";
255302ac6454SAndrew Thompson 				break;
255402ac6454SAndrew Thompson 			}
255502ac6454SAndrew Thompson 
2556a593f6b8SAndrew Thompson 			len = usb_make_str_desc
255702ac6454SAndrew Thompson 			    (sc->sc_hub_desc.temp,
255802ac6454SAndrew Thompson 			    sizeof(sc->sc_hub_desc.temp),
2559459d369eSAndrew Thompson 			    str_ptr);
256002ac6454SAndrew Thompson 			break;
256102ac6454SAndrew Thompson 
256202ac6454SAndrew Thompson 		default:
2563459d369eSAndrew Thompson 			err = USB_ERR_IOERROR;
256402ac6454SAndrew Thompson 			goto done;
256502ac6454SAndrew Thompson 		}
256602ac6454SAndrew Thompson 		break;
256702ac6454SAndrew Thompson 	case C(UR_GET_INTERFACE, UT_READ_INTERFACE):
2568459d369eSAndrew Thompson 		len = 1;
256902ac6454SAndrew Thompson 		sc->sc_hub_desc.temp[0] = 0;
257002ac6454SAndrew Thompson 		break;
257102ac6454SAndrew Thompson 	case C(UR_GET_STATUS, UT_READ_DEVICE):
2572459d369eSAndrew Thompson 		len = 2;
257302ac6454SAndrew Thompson 		USETW(sc->sc_hub_desc.stat.wStatus, UDS_SELF_POWERED);
257402ac6454SAndrew Thompson 		break;
257502ac6454SAndrew Thompson 	case C(UR_GET_STATUS, UT_READ_INTERFACE):
257602ac6454SAndrew Thompson 	case C(UR_GET_STATUS, UT_READ_ENDPOINT):
2577459d369eSAndrew Thompson 		len = 2;
257802ac6454SAndrew Thompson 		USETW(sc->sc_hub_desc.stat.wStatus, 0);
257902ac6454SAndrew Thompson 		break;
258002ac6454SAndrew Thompson 	case C(UR_SET_ADDRESS, UT_WRITE_DEVICE):
2581ab42e8b2SAndrew Thompson 		if (value >= UHCI_MAX_DEVICES) {
2582459d369eSAndrew Thompson 			err = USB_ERR_IOERROR;
258302ac6454SAndrew Thompson 			goto done;
258402ac6454SAndrew Thompson 		}
258502ac6454SAndrew Thompson 		sc->sc_addr = value;
258602ac6454SAndrew Thompson 		break;
258702ac6454SAndrew Thompson 	case C(UR_SET_CONFIG, UT_WRITE_DEVICE):
258802ac6454SAndrew Thompson 		if ((value != 0) && (value != 1)) {
2589459d369eSAndrew Thompson 			err = USB_ERR_IOERROR;
259002ac6454SAndrew Thompson 			goto done;
259102ac6454SAndrew Thompson 		}
259202ac6454SAndrew Thompson 		sc->sc_conf = value;
259302ac6454SAndrew Thompson 		break;
259402ac6454SAndrew Thompson 	case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE):
259502ac6454SAndrew Thompson 		break;
259602ac6454SAndrew Thompson 	case C(UR_SET_FEATURE, UT_WRITE_DEVICE):
259702ac6454SAndrew Thompson 	case C(UR_SET_FEATURE, UT_WRITE_INTERFACE):
259802ac6454SAndrew Thompson 	case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT):
2599459d369eSAndrew Thompson 		err = USB_ERR_IOERROR;
260002ac6454SAndrew Thompson 		goto done;
260102ac6454SAndrew Thompson 	case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE):
260202ac6454SAndrew Thompson 		break;
260302ac6454SAndrew Thompson 	case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT):
260402ac6454SAndrew Thompson 		break;
260502ac6454SAndrew Thompson 		/* Hub requests */
260602ac6454SAndrew Thompson 	case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE):
260702ac6454SAndrew Thompson 		break;
260802ac6454SAndrew Thompson 	case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER):
260902ac6454SAndrew Thompson 		DPRINTFN(4, "UR_CLEAR_PORT_FEATURE "
261002ac6454SAndrew Thompson 		    "port=%d feature=%d\n",
261102ac6454SAndrew Thompson 		    index, value);
261202ac6454SAndrew Thompson 		if (index == 1)
261302ac6454SAndrew Thompson 			port = UHCI_PORTSC1;
261402ac6454SAndrew Thompson 		else if (index == 2)
261502ac6454SAndrew Thompson 			port = UHCI_PORTSC2;
261602ac6454SAndrew Thompson 		else {
2617459d369eSAndrew Thompson 			err = USB_ERR_IOERROR;
261802ac6454SAndrew Thompson 			goto done;
261902ac6454SAndrew Thompson 		}
262002ac6454SAndrew Thompson 		switch (value) {
262102ac6454SAndrew Thompson 		case UHF_PORT_ENABLE:
262202ac6454SAndrew Thompson 			x = URWMASK(UREAD2(sc, port));
262302ac6454SAndrew Thompson 			UWRITE2(sc, port, x & ~UHCI_PORTSC_PE);
262402ac6454SAndrew Thompson 			break;
262502ac6454SAndrew Thompson 		case UHF_PORT_SUSPEND:
262602ac6454SAndrew Thompson 			x = URWMASK(UREAD2(sc, port));
262702ac6454SAndrew Thompson 			UWRITE2(sc, port, x & ~(UHCI_PORTSC_SUSP));
262802ac6454SAndrew Thompson 			break;
262902ac6454SAndrew Thompson 		case UHF_PORT_RESET:
263002ac6454SAndrew Thompson 			x = URWMASK(UREAD2(sc, port));
263102ac6454SAndrew Thompson 			UWRITE2(sc, port, x & ~UHCI_PORTSC_PR);
263202ac6454SAndrew Thompson 			break;
263302ac6454SAndrew Thompson 		case UHF_C_PORT_CONNECTION:
263402ac6454SAndrew Thompson 			x = URWMASK(UREAD2(sc, port));
263502ac6454SAndrew Thompson 			UWRITE2(sc, port, x | UHCI_PORTSC_CSC);
263602ac6454SAndrew Thompson 			break;
263702ac6454SAndrew Thompson 		case UHF_C_PORT_ENABLE:
263802ac6454SAndrew Thompson 			x = URWMASK(UREAD2(sc, port));
263902ac6454SAndrew Thompson 			UWRITE2(sc, port, x | UHCI_PORTSC_POEDC);
264002ac6454SAndrew Thompson 			break;
264102ac6454SAndrew Thompson 		case UHF_C_PORT_OVER_CURRENT:
264202ac6454SAndrew Thompson 			x = URWMASK(UREAD2(sc, port));
264302ac6454SAndrew Thompson 			UWRITE2(sc, port, x | UHCI_PORTSC_OCIC);
264402ac6454SAndrew Thompson 			break;
264502ac6454SAndrew Thompson 		case UHF_C_PORT_RESET:
264602ac6454SAndrew Thompson 			sc->sc_isreset = 0;
2647459d369eSAndrew Thompson 			err = USB_ERR_NORMAL_COMPLETION;
264802ac6454SAndrew Thompson 			goto done;
264902ac6454SAndrew Thompson 		case UHF_C_PORT_SUSPEND:
265002ac6454SAndrew Thompson 			sc->sc_isresumed &= ~(1 << index);
265102ac6454SAndrew Thompson 			break;
265202ac6454SAndrew Thompson 		case UHF_PORT_CONNECTION:
265302ac6454SAndrew Thompson 		case UHF_PORT_OVER_CURRENT:
265402ac6454SAndrew Thompson 		case UHF_PORT_POWER:
265502ac6454SAndrew Thompson 		case UHF_PORT_LOW_SPEED:
265602ac6454SAndrew Thompson 		default:
2657459d369eSAndrew Thompson 			err = USB_ERR_IOERROR;
265802ac6454SAndrew Thompson 			goto done;
265902ac6454SAndrew Thompson 		}
266002ac6454SAndrew Thompson 		break;
266102ac6454SAndrew Thompson 	case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER):
266202ac6454SAndrew Thompson 		if (index == 1)
266302ac6454SAndrew Thompson 			port = UHCI_PORTSC1;
266402ac6454SAndrew Thompson 		else if (index == 2)
266502ac6454SAndrew Thompson 			port = UHCI_PORTSC2;
266602ac6454SAndrew Thompson 		else {
2667459d369eSAndrew Thompson 			err = USB_ERR_IOERROR;
266802ac6454SAndrew Thompson 			goto done;
266902ac6454SAndrew Thompson 		}
2670459d369eSAndrew Thompson 		len = 1;
267102ac6454SAndrew Thompson 		sc->sc_hub_desc.temp[0] =
267202ac6454SAndrew Thompson 		    ((UREAD2(sc, port) & UHCI_PORTSC_LS) >>
267302ac6454SAndrew Thompson 		    UHCI_PORTSC_LS_SHIFT);
267402ac6454SAndrew Thompson 		break;
267502ac6454SAndrew Thompson 	case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE):
267602ac6454SAndrew Thompson 		if ((value & 0xff) != 0) {
2677459d369eSAndrew Thompson 			err = USB_ERR_IOERROR;
267802ac6454SAndrew Thompson 			goto done;
267902ac6454SAndrew Thompson 		}
2680459d369eSAndrew Thompson 		len = sizeof(uhci_hubd_piix);
2681459d369eSAndrew Thompson 		ptr = (const void *)&uhci_hubd_piix;
268202ac6454SAndrew Thompson 		break;
268302ac6454SAndrew Thompson 	case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE):
2684459d369eSAndrew Thompson 		len = 16;
2685271ae033SHans Petter Selasky 		memset(sc->sc_hub_desc.temp, 0, 16);
268602ac6454SAndrew Thompson 		break;
268702ac6454SAndrew Thompson 	case C(UR_GET_STATUS, UT_READ_CLASS_OTHER):
268802ac6454SAndrew Thompson 		if (index == 1)
268902ac6454SAndrew Thompson 			port = UHCI_PORTSC1;
269002ac6454SAndrew Thompson 		else if (index == 2)
269102ac6454SAndrew Thompson 			port = UHCI_PORTSC2;
269202ac6454SAndrew Thompson 		else {
2693459d369eSAndrew Thompson 			err = USB_ERR_IOERROR;
269402ac6454SAndrew Thompson 			goto done;
269502ac6454SAndrew Thompson 		}
269602ac6454SAndrew Thompson 		x = UREAD2(sc, port);
269702ac6454SAndrew Thompson 		status = change = 0;
269802ac6454SAndrew Thompson 		if (x & UHCI_PORTSC_CCS)
269902ac6454SAndrew Thompson 			status |= UPS_CURRENT_CONNECT_STATUS;
270002ac6454SAndrew Thompson 		if (x & UHCI_PORTSC_CSC)
270102ac6454SAndrew Thompson 			change |= UPS_C_CONNECT_STATUS;
270202ac6454SAndrew Thompson 		if (x & UHCI_PORTSC_PE)
270302ac6454SAndrew Thompson 			status |= UPS_PORT_ENABLED;
270402ac6454SAndrew Thompson 		if (x & UHCI_PORTSC_POEDC)
270502ac6454SAndrew Thompson 			change |= UPS_C_PORT_ENABLED;
270602ac6454SAndrew Thompson 		if (x & UHCI_PORTSC_OCI)
270702ac6454SAndrew Thompson 			status |= UPS_OVERCURRENT_INDICATOR;
270802ac6454SAndrew Thompson 		if (x & UHCI_PORTSC_OCIC)
270902ac6454SAndrew Thompson 			change |= UPS_C_OVERCURRENT_INDICATOR;
271002ac6454SAndrew Thompson 		if (x & UHCI_PORTSC_LSDA)
271102ac6454SAndrew Thompson 			status |= UPS_LOW_SPEED;
271202ac6454SAndrew Thompson 		if ((x & UHCI_PORTSC_PE) && (x & UHCI_PORTSC_RD)) {
271302ac6454SAndrew Thompson 			/* need to do a write back */
271402ac6454SAndrew Thompson 			UWRITE2(sc, port, URWMASK(x));
271502ac6454SAndrew Thompson 
271602ac6454SAndrew Thompson 			/* wait 20ms for resume sequence to complete */
2717a593f6b8SAndrew Thompson 			usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 50);
271802ac6454SAndrew Thompson 
271902ac6454SAndrew Thompson 			/* clear suspend and resume detect */
272002ac6454SAndrew Thompson 			UWRITE2(sc, port, URWMASK(x) & ~(UHCI_PORTSC_RD |
272102ac6454SAndrew Thompson 			    UHCI_PORTSC_SUSP));
272202ac6454SAndrew Thompson 
272302ac6454SAndrew Thompson 			/* wait a little bit */
2724a593f6b8SAndrew Thompson 			usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 500);
272502ac6454SAndrew Thompson 
272602ac6454SAndrew Thompson 			sc->sc_isresumed |= (1 << index);
272702ac6454SAndrew Thompson 
272802ac6454SAndrew Thompson 		} else if (x & UHCI_PORTSC_SUSP) {
272902ac6454SAndrew Thompson 			status |= UPS_SUSPEND;
273002ac6454SAndrew Thompson 		}
273102ac6454SAndrew Thompson 		status |= UPS_PORT_POWER;
273202ac6454SAndrew Thompson 		if (sc->sc_isresumed & (1 << index))
273302ac6454SAndrew Thompson 			change |= UPS_C_SUSPEND;
273402ac6454SAndrew Thompson 		if (sc->sc_isreset)
273502ac6454SAndrew Thompson 			change |= UPS_C_PORT_RESET;
273602ac6454SAndrew Thompson 		USETW(sc->sc_hub_desc.ps.wPortStatus, status);
273702ac6454SAndrew Thompson 		USETW(sc->sc_hub_desc.ps.wPortChange, change);
2738459d369eSAndrew Thompson 		len = sizeof(sc->sc_hub_desc.ps);
273902ac6454SAndrew Thompson 		break;
274002ac6454SAndrew Thompson 	case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE):
2741459d369eSAndrew Thompson 		err = USB_ERR_IOERROR;
274202ac6454SAndrew Thompson 		goto done;
274302ac6454SAndrew Thompson 	case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE):
274402ac6454SAndrew Thompson 		break;
274502ac6454SAndrew Thompson 	case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER):
274602ac6454SAndrew Thompson 		if (index == 1)
274702ac6454SAndrew Thompson 			port = UHCI_PORTSC1;
274802ac6454SAndrew Thompson 		else if (index == 2)
274902ac6454SAndrew Thompson 			port = UHCI_PORTSC2;
275002ac6454SAndrew Thompson 		else {
2751459d369eSAndrew Thompson 			err = USB_ERR_IOERROR;
275202ac6454SAndrew Thompson 			goto done;
275302ac6454SAndrew Thompson 		}
275402ac6454SAndrew Thompson 		switch (value) {
275502ac6454SAndrew Thompson 		case UHF_PORT_ENABLE:
275602ac6454SAndrew Thompson 			x = URWMASK(UREAD2(sc, port));
275702ac6454SAndrew Thompson 			UWRITE2(sc, port, x | UHCI_PORTSC_PE);
275802ac6454SAndrew Thompson 			break;
275902ac6454SAndrew Thompson 		case UHF_PORT_SUSPEND:
276002ac6454SAndrew Thompson 			x = URWMASK(UREAD2(sc, port));
276102ac6454SAndrew Thompson 			UWRITE2(sc, port, x | UHCI_PORTSC_SUSP);
276202ac6454SAndrew Thompson 			break;
276302ac6454SAndrew Thompson 		case UHF_PORT_RESET:
2764459d369eSAndrew Thompson 			err = uhci_portreset(sc, index);
276502ac6454SAndrew Thompson 			goto done;
276602ac6454SAndrew Thompson 		case UHF_PORT_POWER:
276702ac6454SAndrew Thompson 			/* pretend we turned on power */
2768459d369eSAndrew Thompson 			err = USB_ERR_NORMAL_COMPLETION;
276902ac6454SAndrew Thompson 			goto done;
277002ac6454SAndrew Thompson 		case UHF_C_PORT_CONNECTION:
277102ac6454SAndrew Thompson 		case UHF_C_PORT_ENABLE:
277202ac6454SAndrew Thompson 		case UHF_C_PORT_OVER_CURRENT:
277302ac6454SAndrew Thompson 		case UHF_PORT_CONNECTION:
277402ac6454SAndrew Thompson 		case UHF_PORT_OVER_CURRENT:
277502ac6454SAndrew Thompson 		case UHF_PORT_LOW_SPEED:
277602ac6454SAndrew Thompson 		case UHF_C_PORT_SUSPEND:
277702ac6454SAndrew Thompson 		case UHF_C_PORT_RESET:
277802ac6454SAndrew Thompson 		default:
2779459d369eSAndrew Thompson 			err = USB_ERR_IOERROR;
278002ac6454SAndrew Thompson 			goto done;
278102ac6454SAndrew Thompson 		}
278202ac6454SAndrew Thompson 		break;
278302ac6454SAndrew Thompson 	default:
2784459d369eSAndrew Thompson 		err = USB_ERR_IOERROR;
278502ac6454SAndrew Thompson 		goto done;
278602ac6454SAndrew Thompson 	}
278702ac6454SAndrew Thompson done:
2788459d369eSAndrew Thompson 	*plength = len;
2789459d369eSAndrew Thompson 	*pptr = ptr;
2790459d369eSAndrew Thompson 	return (err);
279102ac6454SAndrew Thompson }
279202ac6454SAndrew Thompson 
279302ac6454SAndrew Thompson /*
279439307315SAndrew Thompson  * This routine is executed periodically and simulates interrupts from
279539307315SAndrew Thompson  * the root controller interrupt pipe for port status change:
279602ac6454SAndrew Thompson  */
279702ac6454SAndrew Thompson static void
279839307315SAndrew Thompson uhci_root_intr(uhci_softc_t *sc)
279902ac6454SAndrew Thompson {
280002ac6454SAndrew Thompson 	DPRINTFN(21, "\n");
280102ac6454SAndrew Thompson 
280202ac6454SAndrew Thompson 	USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
280302ac6454SAndrew Thompson 
280402ac6454SAndrew Thompson 	sc->sc_hub_idata[0] = 0;
280502ac6454SAndrew Thompson 
280602ac6454SAndrew Thompson 	if (UREAD2(sc, UHCI_PORTSC1) & (UHCI_PORTSC_CSC |
280702ac6454SAndrew Thompson 	    UHCI_PORTSC_OCIC | UHCI_PORTSC_RD)) {
280802ac6454SAndrew Thompson 		sc->sc_hub_idata[0] |= 1 << 1;
280902ac6454SAndrew Thompson 	}
281002ac6454SAndrew Thompson 	if (UREAD2(sc, UHCI_PORTSC2) & (UHCI_PORTSC_CSC |
281102ac6454SAndrew Thompson 	    UHCI_PORTSC_OCIC | UHCI_PORTSC_RD)) {
281202ac6454SAndrew Thompson 		sc->sc_hub_idata[0] |= 1 << 2;
281302ac6454SAndrew Thompson 	}
281402ac6454SAndrew Thompson 
281539307315SAndrew Thompson 	/* restart timer */
2816a593f6b8SAndrew Thompson 	usb_callout_reset(&sc->sc_root_intr, hz,
281739307315SAndrew Thompson 	    (void *)&uhci_root_intr, sc);
281839307315SAndrew Thompson 
281939307315SAndrew Thompson 	if (sc->sc_hub_idata[0] != 0) {
282039307315SAndrew Thompson 		uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata,
282139307315SAndrew Thompson 		    sizeof(sc->sc_hub_idata));
282239307315SAndrew Thompson 	}
282339307315SAndrew Thompson }
282402ac6454SAndrew Thompson 
282502ac6454SAndrew Thompson static void
2826760bc48eSAndrew Thompson uhci_xfer_setup(struct usb_setup_params *parm)
282702ac6454SAndrew Thompson {
2828760bc48eSAndrew Thompson 	struct usb_page_search page_info;
2829760bc48eSAndrew Thompson 	struct usb_page_cache *pc;
283002ac6454SAndrew Thompson 	uhci_softc_t *sc;
2831760bc48eSAndrew Thompson 	struct usb_xfer *xfer;
283202ac6454SAndrew Thompson 	void *last_obj;
283302ac6454SAndrew Thompson 	uint32_t ntd;
283402ac6454SAndrew Thompson 	uint32_t nqh;
283502ac6454SAndrew Thompson 	uint32_t nfixup;
283602ac6454SAndrew Thompson 	uint32_t n;
283702ac6454SAndrew Thompson 	uint16_t align;
283802ac6454SAndrew Thompson 
283902ac6454SAndrew Thompson 	sc = UHCI_BUS2SC(parm->udev->bus);
284002ac6454SAndrew Thompson 	xfer = parm->curr_xfer;
284102ac6454SAndrew Thompson 
284202ac6454SAndrew Thompson 	parm->hc_max_packet_size = 0x500;
284302ac6454SAndrew Thompson 	parm->hc_max_packet_count = 1;
284402ac6454SAndrew Thompson 	parm->hc_max_frame_size = 0x500;
284502ac6454SAndrew Thompson 
284602ac6454SAndrew Thompson 	/*
284702ac6454SAndrew Thompson 	 * compute ntd and nqh
284802ac6454SAndrew Thompson 	 */
284902ac6454SAndrew Thompson 	if (parm->methods == &uhci_device_ctrl_methods) {
285002ac6454SAndrew Thompson 		xfer->flags_int.bdma_enable = 1;
285102ac6454SAndrew Thompson 		xfer->flags_int.bdma_no_post_sync = 1;
285202ac6454SAndrew Thompson 
2853a593f6b8SAndrew Thompson 		usbd_transfer_setup_sub(parm);
285402ac6454SAndrew Thompson 
285502ac6454SAndrew Thompson 		/* see EHCI HC driver for proof of "ntd" formula */
285602ac6454SAndrew Thompson 
285702ac6454SAndrew Thompson 		nqh = 1;
285802ac6454SAndrew Thompson 		ntd = ((2 * xfer->nframes) + 1	/* STATUS */
285902ac6454SAndrew Thompson 		    + (xfer->max_data_length / xfer->max_frame_size));
286002ac6454SAndrew Thompson 
286102ac6454SAndrew Thompson 	} else if (parm->methods == &uhci_device_bulk_methods) {
286202ac6454SAndrew Thompson 		xfer->flags_int.bdma_enable = 1;
286302ac6454SAndrew Thompson 		xfer->flags_int.bdma_no_post_sync = 1;
286402ac6454SAndrew Thompson 
2865a593f6b8SAndrew Thompson 		usbd_transfer_setup_sub(parm);
286602ac6454SAndrew Thompson 
286702ac6454SAndrew Thompson 		nqh = 1;
286802ac6454SAndrew Thompson 		ntd = ((2 * xfer->nframes)
286902ac6454SAndrew Thompson 		    + (xfer->max_data_length / xfer->max_frame_size));
287002ac6454SAndrew Thompson 
287102ac6454SAndrew Thompson 	} else if (parm->methods == &uhci_device_intr_methods) {
287202ac6454SAndrew Thompson 		xfer->flags_int.bdma_enable = 1;
287302ac6454SAndrew Thompson 		xfer->flags_int.bdma_no_post_sync = 1;
287402ac6454SAndrew Thompson 
2875a593f6b8SAndrew Thompson 		usbd_transfer_setup_sub(parm);
287602ac6454SAndrew Thompson 
287702ac6454SAndrew Thompson 		nqh = 1;
287802ac6454SAndrew Thompson 		ntd = ((2 * xfer->nframes)
287902ac6454SAndrew Thompson 		    + (xfer->max_data_length / xfer->max_frame_size));
288002ac6454SAndrew Thompson 
288102ac6454SAndrew Thompson 	} else if (parm->methods == &uhci_device_isoc_methods) {
288202ac6454SAndrew Thompson 		xfer->flags_int.bdma_enable = 1;
288302ac6454SAndrew Thompson 		xfer->flags_int.bdma_no_post_sync = 1;
288402ac6454SAndrew Thompson 
2885a593f6b8SAndrew Thompson 		usbd_transfer_setup_sub(parm);
288602ac6454SAndrew Thompson 
288702ac6454SAndrew Thompson 		nqh = 0;
288802ac6454SAndrew Thompson 		ntd = xfer->nframes;
288902ac6454SAndrew Thompson 
289002ac6454SAndrew Thompson 	} else {
289102ac6454SAndrew Thompson 
2892a593f6b8SAndrew Thompson 		usbd_transfer_setup_sub(parm);
289302ac6454SAndrew Thompson 
289402ac6454SAndrew Thompson 		nqh = 0;
289502ac6454SAndrew Thompson 		ntd = 0;
289602ac6454SAndrew Thompson 	}
289702ac6454SAndrew Thompson 
289802ac6454SAndrew Thompson 	if (parm->err) {
289902ac6454SAndrew Thompson 		return;
290002ac6454SAndrew Thompson 	}
290102ac6454SAndrew Thompson 	/*
290202ac6454SAndrew Thompson 	 * NOTE: the UHCI controller requires that
290302ac6454SAndrew Thompson 	 * every packet must be contiguous on
290402ac6454SAndrew Thompson 	 * the same USB memory page !
290502ac6454SAndrew Thompson 	 */
290602ac6454SAndrew Thompson 	nfixup = (parm->bufsize / USB_PAGE_SIZE) + 1;
290702ac6454SAndrew Thompson 
290802ac6454SAndrew Thompson 	/*
290902ac6454SAndrew Thompson 	 * Compute a suitable power of two alignment
291002ac6454SAndrew Thompson 	 * for our "max_frame_size" fixup buffer(s):
291102ac6454SAndrew Thompson 	 */
291202ac6454SAndrew Thompson 	align = xfer->max_frame_size;
291302ac6454SAndrew Thompson 	n = 0;
291402ac6454SAndrew Thompson 	while (align) {
291502ac6454SAndrew Thompson 		align >>= 1;
291602ac6454SAndrew Thompson 		n++;
291702ac6454SAndrew Thompson 	}
291802ac6454SAndrew Thompson 
291902ac6454SAndrew Thompson 	/* check for power of two */
292002ac6454SAndrew Thompson 	if (!(xfer->max_frame_size &
292102ac6454SAndrew Thompson 	    (xfer->max_frame_size - 1))) {
292202ac6454SAndrew Thompson 		n--;
292302ac6454SAndrew Thompson 	}
292402ac6454SAndrew Thompson 	/*
292502ac6454SAndrew Thompson 	 * We don't allow alignments of
292602ac6454SAndrew Thompson 	 * less than 8 bytes:
292702ac6454SAndrew Thompson 	 *
292802ac6454SAndrew Thompson 	 * NOTE: Allocating using an aligment
292902ac6454SAndrew Thompson 	 * of 1 byte has special meaning!
293002ac6454SAndrew Thompson 	 */
293102ac6454SAndrew Thompson 	if (n < 3) {
293202ac6454SAndrew Thompson 		n = 3;
293302ac6454SAndrew Thompson 	}
293402ac6454SAndrew Thompson 	align = (1 << n);
293502ac6454SAndrew Thompson 
2936a593f6b8SAndrew Thompson 	if (usbd_transfer_setup_sub_malloc(
293702ac6454SAndrew Thompson 	    parm, &pc, xfer->max_frame_size,
293802ac6454SAndrew Thompson 	    align, nfixup)) {
293902ac6454SAndrew Thompson 		parm->err = USB_ERR_NOMEM;
294002ac6454SAndrew Thompson 		return;
294102ac6454SAndrew Thompson 	}
294202ac6454SAndrew Thompson 	xfer->buf_fixup = pc;
294302ac6454SAndrew Thompson 
294402ac6454SAndrew Thompson alloc_dma_set:
294502ac6454SAndrew Thompson 
294602ac6454SAndrew Thompson 	if (parm->err) {
294702ac6454SAndrew Thompson 		return;
294802ac6454SAndrew Thompson 	}
294902ac6454SAndrew Thompson 	last_obj = NULL;
295002ac6454SAndrew Thompson 
2951a593f6b8SAndrew Thompson 	if (usbd_transfer_setup_sub_malloc(
295202ac6454SAndrew Thompson 	    parm, &pc, sizeof(uhci_td_t),
295302ac6454SAndrew Thompson 	    UHCI_TD_ALIGN, ntd)) {
295402ac6454SAndrew Thompson 		parm->err = USB_ERR_NOMEM;
295502ac6454SAndrew Thompson 		return;
295602ac6454SAndrew Thompson 	}
295702ac6454SAndrew Thompson 	if (parm->buf) {
295802ac6454SAndrew Thompson 		for (n = 0; n != ntd; n++) {
295902ac6454SAndrew Thompson 			uhci_td_t *td;
296002ac6454SAndrew Thompson 
2961a593f6b8SAndrew Thompson 			usbd_get_page(pc + n, 0, &page_info);
296202ac6454SAndrew Thompson 
296302ac6454SAndrew Thompson 			td = page_info.buffer;
296402ac6454SAndrew Thompson 
296502ac6454SAndrew Thompson 			/* init TD */
296602ac6454SAndrew Thompson 			if ((parm->methods == &uhci_device_bulk_methods) ||
296702ac6454SAndrew Thompson 			    (parm->methods == &uhci_device_ctrl_methods) ||
296802ac6454SAndrew Thompson 			    (parm->methods == &uhci_device_intr_methods)) {
296902ac6454SAndrew Thompson 				/* set depth first bit */
297002ac6454SAndrew Thompson 				td->td_self = htole32(page_info.physaddr |
297102ac6454SAndrew Thompson 				    UHCI_PTR_TD | UHCI_PTR_VF);
297202ac6454SAndrew Thompson 			} else {
297302ac6454SAndrew Thompson 				td->td_self = htole32(page_info.physaddr |
297402ac6454SAndrew Thompson 				    UHCI_PTR_TD);
297502ac6454SAndrew Thompson 			}
297602ac6454SAndrew Thompson 
297702ac6454SAndrew Thompson 			td->obj_next = last_obj;
297802ac6454SAndrew Thompson 			td->page_cache = pc + n;
297902ac6454SAndrew Thompson 
298002ac6454SAndrew Thompson 			last_obj = td;
298102ac6454SAndrew Thompson 
2982a593f6b8SAndrew Thompson 			usb_pc_cpu_flush(pc + n);
298302ac6454SAndrew Thompson 		}
298402ac6454SAndrew Thompson 	}
298502ac6454SAndrew Thompson 	xfer->td_start[xfer->flags_int.curr_dma_set] = last_obj;
298602ac6454SAndrew Thompson 
298702ac6454SAndrew Thompson 	last_obj = NULL;
298802ac6454SAndrew Thompson 
2989a593f6b8SAndrew Thompson 	if (usbd_transfer_setup_sub_malloc(
299002ac6454SAndrew Thompson 	    parm, &pc, sizeof(uhci_qh_t),
299102ac6454SAndrew Thompson 	    UHCI_QH_ALIGN, nqh)) {
299202ac6454SAndrew Thompson 		parm->err = USB_ERR_NOMEM;
299302ac6454SAndrew Thompson 		return;
299402ac6454SAndrew Thompson 	}
299502ac6454SAndrew Thompson 	if (parm->buf) {
299602ac6454SAndrew Thompson 		for (n = 0; n != nqh; n++) {
299702ac6454SAndrew Thompson 			uhci_qh_t *qh;
299802ac6454SAndrew Thompson 
2999a593f6b8SAndrew Thompson 			usbd_get_page(pc + n, 0, &page_info);
300002ac6454SAndrew Thompson 
300102ac6454SAndrew Thompson 			qh = page_info.buffer;
300202ac6454SAndrew Thompson 
300302ac6454SAndrew Thompson 			/* init QH */
300402ac6454SAndrew Thompson 			qh->qh_self = htole32(page_info.physaddr | UHCI_PTR_QH);
300502ac6454SAndrew Thompson 			qh->obj_next = last_obj;
300602ac6454SAndrew Thompson 			qh->page_cache = pc + n;
300702ac6454SAndrew Thompson 
300802ac6454SAndrew Thompson 			last_obj = qh;
300902ac6454SAndrew Thompson 
3010a593f6b8SAndrew Thompson 			usb_pc_cpu_flush(pc + n);
301102ac6454SAndrew Thompson 		}
301202ac6454SAndrew Thompson 	}
301302ac6454SAndrew Thompson 	xfer->qh_start[xfer->flags_int.curr_dma_set] = last_obj;
301402ac6454SAndrew Thompson 
301502ac6454SAndrew Thompson 	if (!xfer->flags_int.curr_dma_set) {
301602ac6454SAndrew Thompson 		xfer->flags_int.curr_dma_set = 1;
301702ac6454SAndrew Thompson 		goto alloc_dma_set;
301802ac6454SAndrew Thompson 	}
301902ac6454SAndrew Thompson }
302002ac6454SAndrew Thompson 
302102ac6454SAndrew Thompson static void
3022ae60fdfbSAndrew Thompson uhci_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc,
3023ae60fdfbSAndrew Thompson     struct usb_endpoint *ep)
302402ac6454SAndrew Thompson {
302502ac6454SAndrew Thompson 	uhci_softc_t *sc = UHCI_BUS2SC(udev->bus);
302602ac6454SAndrew Thompson 
3027ae60fdfbSAndrew Thompson 	DPRINTFN(2, "endpoint=%p, addr=%d, endpt=%d, mode=%d (%d)\n",
3028ae60fdfbSAndrew Thompson 	    ep, udev->address,
3029f29a0724SAndrew Thompson 	    edesc->bEndpointAddress, udev->flags.usb_mode,
303002ac6454SAndrew Thompson 	    sc->sc_addr);
303102ac6454SAndrew Thompson 
303239307315SAndrew Thompson 	if (udev->device_index != sc->sc_addr) {
303302ac6454SAndrew Thompson 		switch (edesc->bmAttributes & UE_XFERTYPE) {
303402ac6454SAndrew Thompson 		case UE_CONTROL:
3035ae60fdfbSAndrew Thompson 			ep->methods = &uhci_device_ctrl_methods;
303602ac6454SAndrew Thompson 			break;
303702ac6454SAndrew Thompson 		case UE_INTERRUPT:
3038ae60fdfbSAndrew Thompson 			ep->methods = &uhci_device_intr_methods;
303902ac6454SAndrew Thompson 			break;
304002ac6454SAndrew Thompson 		case UE_ISOCHRONOUS:
304102ac6454SAndrew Thompson 			if (udev->speed == USB_SPEED_FULL) {
3042ae60fdfbSAndrew Thompson 				ep->methods = &uhci_device_isoc_methods;
304302ac6454SAndrew Thompson 			}
304402ac6454SAndrew Thompson 			break;
304502ac6454SAndrew Thompson 		case UE_BULK:
3046ae60fdfbSAndrew Thompson 			ep->methods = &uhci_device_bulk_methods;
304702ac6454SAndrew Thompson 			break;
304802ac6454SAndrew Thompson 		default:
304902ac6454SAndrew Thompson 			/* do nothing */
305002ac6454SAndrew Thompson 			break;
305102ac6454SAndrew Thompson 		}
305202ac6454SAndrew Thompson 	}
305302ac6454SAndrew Thompson }
305402ac6454SAndrew Thompson 
305502ac6454SAndrew Thompson static void
3056760bc48eSAndrew Thompson uhci_xfer_unsetup(struct usb_xfer *xfer)
305702ac6454SAndrew Thompson {
305802ac6454SAndrew Thompson 	return;
305902ac6454SAndrew Thompson }
306002ac6454SAndrew Thompson 
306102ac6454SAndrew Thompson static void
3062527aa7b2SAndrew Thompson uhci_get_dma_delay(struct usb_device *udev, uint32_t *pus)
306302ac6454SAndrew Thompson {
306402ac6454SAndrew Thompson 	/*
306502ac6454SAndrew Thompson 	 * Wait until hardware has finished any possible use of the
306602ac6454SAndrew Thompson 	 * transfer descriptor(s) and QH
306702ac6454SAndrew Thompson 	 */
306802ac6454SAndrew Thompson 	*pus = (1125);			/* microseconds */
306902ac6454SAndrew Thompson }
307002ac6454SAndrew Thompson 
307102ac6454SAndrew Thompson static void
3072760bc48eSAndrew Thompson uhci_device_resume(struct usb_device *udev)
307302ac6454SAndrew Thompson {
307402ac6454SAndrew Thompson 	struct uhci_softc *sc = UHCI_BUS2SC(udev->bus);
3075760bc48eSAndrew Thompson 	struct usb_xfer *xfer;
3076760bc48eSAndrew Thompson 	struct usb_pipe_methods *methods;
307702ac6454SAndrew Thompson 	uhci_qh_t *qh;
307802ac6454SAndrew Thompson 
307902ac6454SAndrew Thompson 	DPRINTF("\n");
308002ac6454SAndrew Thompson 
308102ac6454SAndrew Thompson 	USB_BUS_LOCK(udev->bus);
308202ac6454SAndrew Thompson 
308302ac6454SAndrew Thompson 	TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
308402ac6454SAndrew Thompson 
308502ac6454SAndrew Thompson 		if (xfer->xroot->udev == udev) {
308602ac6454SAndrew Thompson 
3087ae60fdfbSAndrew Thompson 			methods = xfer->endpoint->methods;
308802ac6454SAndrew Thompson 			qh = xfer->qh_start[xfer->flags_int.curr_dma_set];
308902ac6454SAndrew Thompson 
309002ac6454SAndrew Thompson 			if (methods == &uhci_device_bulk_methods) {
309102ac6454SAndrew Thompson 				UHCI_APPEND_QH(qh, sc->sc_bulk_p_last);
309202ac6454SAndrew Thompson 				uhci_add_loop(sc);
309302ac6454SAndrew Thompson 				xfer->flags_int.bandwidth_reclaimed = 1;
309402ac6454SAndrew Thompson 			}
309502ac6454SAndrew Thompson 			if (methods == &uhci_device_ctrl_methods) {
309602ac6454SAndrew Thompson 				if (xfer->xroot->udev->speed == USB_SPEED_LOW) {
309702ac6454SAndrew Thompson 					UHCI_APPEND_QH(qh, sc->sc_ls_ctl_p_last);
309802ac6454SAndrew Thompson 				} else {
309902ac6454SAndrew Thompson 					UHCI_APPEND_QH(qh, sc->sc_fs_ctl_p_last);
310002ac6454SAndrew Thompson 				}
310102ac6454SAndrew Thompson 			}
310202ac6454SAndrew Thompson 			if (methods == &uhci_device_intr_methods) {
310302ac6454SAndrew Thompson 				UHCI_APPEND_QH(qh, sc->sc_intr_p_last[xfer->qh_pos]);
310402ac6454SAndrew Thompson 			}
310502ac6454SAndrew Thompson 		}
310602ac6454SAndrew Thompson 	}
310702ac6454SAndrew Thompson 
310802ac6454SAndrew Thompson 	USB_BUS_UNLOCK(udev->bus);
310902ac6454SAndrew Thompson 
311002ac6454SAndrew Thompson 	return;
311102ac6454SAndrew Thompson }
311202ac6454SAndrew Thompson 
311302ac6454SAndrew Thompson static void
3114760bc48eSAndrew Thompson uhci_device_suspend(struct usb_device *udev)
311502ac6454SAndrew Thompson {
311602ac6454SAndrew Thompson 	struct uhci_softc *sc = UHCI_BUS2SC(udev->bus);
3117760bc48eSAndrew Thompson 	struct usb_xfer *xfer;
3118760bc48eSAndrew Thompson 	struct usb_pipe_methods *methods;
311902ac6454SAndrew Thompson 	uhci_qh_t *qh;
312002ac6454SAndrew Thompson 
312102ac6454SAndrew Thompson 	DPRINTF("\n");
312202ac6454SAndrew Thompson 
312302ac6454SAndrew Thompson 	USB_BUS_LOCK(udev->bus);
312402ac6454SAndrew Thompson 
312502ac6454SAndrew Thompson 	TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
312602ac6454SAndrew Thompson 
312702ac6454SAndrew Thompson 		if (xfer->xroot->udev == udev) {
312802ac6454SAndrew Thompson 
3129ae60fdfbSAndrew Thompson 			methods = xfer->endpoint->methods;
313002ac6454SAndrew Thompson 			qh = xfer->qh_start[xfer->flags_int.curr_dma_set];
313102ac6454SAndrew Thompson 
313202ac6454SAndrew Thompson 			if (xfer->flags_int.bandwidth_reclaimed) {
313302ac6454SAndrew Thompson 				xfer->flags_int.bandwidth_reclaimed = 0;
313402ac6454SAndrew Thompson 				uhci_rem_loop(sc);
313502ac6454SAndrew Thompson 			}
313602ac6454SAndrew Thompson 			if (methods == &uhci_device_bulk_methods) {
313702ac6454SAndrew Thompson 				UHCI_REMOVE_QH(qh, sc->sc_bulk_p_last);
313802ac6454SAndrew Thompson 			}
313902ac6454SAndrew Thompson 			if (methods == &uhci_device_ctrl_methods) {
314002ac6454SAndrew Thompson 				if (xfer->xroot->udev->speed == USB_SPEED_LOW) {
314102ac6454SAndrew Thompson 					UHCI_REMOVE_QH(qh, sc->sc_ls_ctl_p_last);
314202ac6454SAndrew Thompson 				} else {
314302ac6454SAndrew Thompson 					UHCI_REMOVE_QH(qh, sc->sc_fs_ctl_p_last);
314402ac6454SAndrew Thompson 				}
314502ac6454SAndrew Thompson 			}
314602ac6454SAndrew Thompson 			if (methods == &uhci_device_intr_methods) {
314702ac6454SAndrew Thompson 				UHCI_REMOVE_QH(qh, sc->sc_intr_p_last[xfer->qh_pos]);
314802ac6454SAndrew Thompson 			}
314902ac6454SAndrew Thompson 		}
315002ac6454SAndrew Thompson 	}
315102ac6454SAndrew Thompson 
315202ac6454SAndrew Thompson 	USB_BUS_UNLOCK(udev->bus);
315302ac6454SAndrew Thompson 
315402ac6454SAndrew Thompson 	return;
315502ac6454SAndrew Thompson }
315602ac6454SAndrew Thompson 
315702ac6454SAndrew Thompson static void
31582e141748SHans Petter Selasky uhci_set_hw_power_sleep(struct usb_bus *bus, uint32_t state)
31592e141748SHans Petter Selasky {
31602e141748SHans Petter Selasky 	struct uhci_softc *sc = UHCI_BUS2SC(bus);
31612e141748SHans Petter Selasky 
31622e141748SHans Petter Selasky 	switch (state) {
31632e141748SHans Petter Selasky 	case USB_HW_POWER_SUSPEND:
31642e141748SHans Petter Selasky 	case USB_HW_POWER_SHUTDOWN:
31652e141748SHans Petter Selasky 		uhci_suspend(sc);
31662e141748SHans Petter Selasky 		break;
31672e141748SHans Petter Selasky 	case USB_HW_POWER_RESUME:
31682e141748SHans Petter Selasky 		uhci_resume(sc);
31692e141748SHans Petter Selasky 		break;
31702e141748SHans Petter Selasky 	default:
31712e141748SHans Petter Selasky 		break;
31722e141748SHans Petter Selasky 	}
31732e141748SHans Petter Selasky }
31742e141748SHans Petter Selasky 
31752e141748SHans Petter Selasky static void
3176760bc48eSAndrew Thompson uhci_set_hw_power(struct usb_bus *bus)
317702ac6454SAndrew Thompson {
317802ac6454SAndrew Thompson 	struct uhci_softc *sc = UHCI_BUS2SC(bus);
317902ac6454SAndrew Thompson 	uint32_t flags;
318002ac6454SAndrew Thompson 
318102ac6454SAndrew Thompson 	DPRINTF("\n");
318202ac6454SAndrew Thompson 
318302ac6454SAndrew Thompson 	USB_BUS_LOCK(bus);
318402ac6454SAndrew Thompson 
318502ac6454SAndrew Thompson 	flags = bus->hw_power_state;
318602ac6454SAndrew Thompson 
318702ac6454SAndrew Thompson 	/*
318802ac6454SAndrew Thompson 	 * WARNING: Some FULL speed USB devices require periodic SOF
318902ac6454SAndrew Thompson 	 * messages! If any USB devices are connected through the
319002ac6454SAndrew Thompson 	 * UHCI, power save will be disabled!
319102ac6454SAndrew Thompson 	 */
319202ac6454SAndrew Thompson 	if (flags & (USB_HW_POWER_CONTROL |
319302ac6454SAndrew Thompson 	    USB_HW_POWER_NON_ROOT_HUB |
319402ac6454SAndrew Thompson 	    USB_HW_POWER_BULK |
319502ac6454SAndrew Thompson 	    USB_HW_POWER_INTERRUPT |
319602ac6454SAndrew Thompson 	    USB_HW_POWER_ISOC)) {
319702ac6454SAndrew Thompson 		DPRINTF("Some USB transfer is "
3198b9c81a5dSAndrew Thompson 		    "active on unit %u.\n",
319902ac6454SAndrew Thompson 		    device_get_unit(sc->sc_bus.bdev));
3200b9c81a5dSAndrew Thompson 		uhci_restart(sc);
320102ac6454SAndrew Thompson 	} else {
3202b9c81a5dSAndrew Thompson 		DPRINTF("Power save on unit %u.\n",
320302ac6454SAndrew Thompson 		    device_get_unit(sc->sc_bus.bdev));
320402ac6454SAndrew Thompson 		UHCICMD(sc, UHCI_CMD_MAXP);
320502ac6454SAndrew Thompson 	}
320602ac6454SAndrew Thompson 
320702ac6454SAndrew Thompson 	USB_BUS_UNLOCK(bus);
320802ac6454SAndrew Thompson 
320902ac6454SAndrew Thompson 	return;
321002ac6454SAndrew Thompson }
321102ac6454SAndrew Thompson 
321202ac6454SAndrew Thompson 
3213760bc48eSAndrew Thompson struct usb_bus_methods uhci_bus_methods =
321402ac6454SAndrew Thompson {
3215ae60fdfbSAndrew Thompson 	.endpoint_init = uhci_ep_init,
321602ac6454SAndrew Thompson 	.xfer_setup = uhci_xfer_setup,
321702ac6454SAndrew Thompson 	.xfer_unsetup = uhci_xfer_unsetup,
321802ac6454SAndrew Thompson 	.get_dma_delay = uhci_get_dma_delay,
321902ac6454SAndrew Thompson 	.device_resume = uhci_device_resume,
322002ac6454SAndrew Thompson 	.device_suspend = uhci_device_suspend,
322102ac6454SAndrew Thompson 	.set_hw_power = uhci_set_hw_power,
32222e141748SHans Petter Selasky 	.set_hw_power_sleep = uhci_set_hw_power_sleep,
322339307315SAndrew Thompson 	.roothub_exec = uhci_roothub_exec,
3224dddb25f9SAlfred Perlstein 	.xfer_poll = uhci_do_poll,
322502ac6454SAndrew Thompson };
3226