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sl811hs.c revision 1.3
      1 /*	$NetBSD: sl811hs.c,v 1.3 2003/03/13 06:50:23 bsh Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Tetsuya Isaki.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *      This product includes software developed by the NetBSD
     21  *      Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * ScanLogic SL811HS/T USB Host Controller
     41  */
     42 /*
     43  * !! HIGHLY EXPERIMENTAL CODE !!
     44  */
     45 
     46 #include <sys/cdefs.h>
     47 __KERNEL_RCSID(0, "$NetBSD: sl811hs.c,v 1.3 2003/03/13 06:50:23 bsh Exp $");
     48 
     49 #include "opt_slhci.h"
     50 
     51 #include <sys/param.h>
     52 #include <sys/systm.h>
     53 #include <sys/kernel.h>
     54 #include <sys/proc.h>
     55 #include <sys/device.h>
     56 #include <sys/malloc.h>
     57 
     58 #include <machine/bus.h>
     59 #include <machine/cpu.h>
     60 
     61 #include <dev/usb/usb.h>
     62 #include <dev/usb/usbdi.h>
     63 #include <dev/usb/usbdivar.h>
     64 #include <dev/usb/usb_mem.h>
     65 #include <dev/usb/usbdevs.h>
     66 
     67 #include <dev/ic/sl811hsreg.h>
     68 #include <dev/ic/sl811hsvar.h>
     69 
     70 static inline u_int8_t sl11read(struct slhci_softc *, int);
     71 static inline void     sl11write(struct slhci_softc *, int, u_int8_t);
     72 static inline void sl11read_region(struct slhci_softc *, u_char *, int, int);
     73 static inline void sl11write_region(struct slhci_softc *, int, u_char *, int);
     74 
     75 static void		sl11_reset(struct slhci_softc *);
     76 static void		sl11_speed(struct slhci_softc *);
     77 
     78 static usbd_status	slhci_open(usbd_pipe_handle);
     79 static void		slhci_softintr(void *);
     80 static void		slhci_poll(struct usbd_bus *);
     81 static void		slhci_poll_hub(void *);
     82 static void		slhci_poll_device(void *arg);
     83 static usbd_status	slhci_allocm(struct usbd_bus *, usb_dma_t *, u_int32_t);
     84 static void		slhci_freem(struct usbd_bus *, usb_dma_t *);
     85 static usbd_xfer_handle slhci_allocx(struct usbd_bus *);
     86 static void		slhci_freex(struct usbd_bus *, usbd_xfer_handle);
     87 
     88 static int		slhci_str(usb_string_descriptor_t *, int, char *);
     89 
     90 static usbd_status	slhci_root_ctrl_transfer(usbd_xfer_handle);
     91 static usbd_status	slhci_root_ctrl_start(usbd_xfer_handle);
     92 static void		slhci_root_ctrl_abort(usbd_xfer_handle);
     93 static void		slhci_root_ctrl_close(usbd_pipe_handle);
     94 static void		slhci_root_ctrl_done(usbd_xfer_handle);
     95 
     96 static usbd_status	slhci_root_intr_transfer(usbd_xfer_handle);
     97 static usbd_status	slhci_root_intr_start(usbd_xfer_handle);
     98 static void		slhci_root_intr_abort(usbd_xfer_handle);
     99 static void		slhci_root_intr_close(usbd_pipe_handle);
    100 static void		slhci_root_intr_done(usbd_xfer_handle);
    101 
    102 static usbd_status	slhci_device_ctrl_transfer(usbd_xfer_handle);
    103 static usbd_status	slhci_device_ctrl_start(usbd_xfer_handle);
    104 static void		slhci_device_ctrl_abort(usbd_xfer_handle);
    105 static void		slhci_device_ctrl_close(usbd_pipe_handle);
    106 static void		slhci_device_ctrl_done(usbd_xfer_handle);
    107 
    108 static usbd_status	slhci_device_intr_transfer(usbd_xfer_handle);
    109 static usbd_status	slhci_device_intr_start(usbd_xfer_handle);
    110 static void		slhci_device_intr_abort(usbd_xfer_handle);
    111 static void		slhci_device_intr_close(usbd_pipe_handle);
    112 static void		slhci_device_intr_done(usbd_xfer_handle);
    113 
    114 static usbd_status	slhci_device_isoc_transfer(usbd_xfer_handle);
    115 static usbd_status	slhci_device_isoc_start(usbd_xfer_handle);
    116 static void		slhci_device_isoc_abort(usbd_xfer_handle);
    117 static void		slhci_device_isoc_close(usbd_pipe_handle);
    118 static void		slhci_device_isoc_done(usbd_xfer_handle);
    119 
    120 static usbd_status	slhci_device_bulk_transfer(usbd_xfer_handle);
    121 static usbd_status	slhci_device_bulk_start(usbd_xfer_handle);
    122 static void		slhci_device_bulk_abort(usbd_xfer_handle);
    123 static void		slhci_device_bulk_close(usbd_pipe_handle);
    124 static void		slhci_device_bulk_done(usbd_xfer_handle);
    125 
    126 static int		slhci_transaction(struct slhci_softc *,
    127 	usbd_pipe_handle, u_int8_t, int, u_char *, u_int8_t);
    128 static void		slhci_noop(usbd_pipe_handle);
    129 static void		slhci_abort_xfer(usbd_xfer_handle, usbd_status);
    130 static void		slhci_device_clear_toggle(usbd_pipe_handle);
    131 
    132 extern int usbdebug;
    133 int slhci_dummy;
    134 
    135 /* For root hub */
    136 #define SLHCI_INTR_ENDPT	(1)
    137 
    138 #ifdef SLHCI_DEBUG
    139 #define D_TRACE	(0x0001)	/* function trace */
    140 #define D_MSG	(0x0002)	/* debug messages */
    141 #define D_XFER	(0x0004)	/* transfer messages (noisy!) */
    142 #define D_MEM	(0x0008)	/* memory allocation */
    143 
    144 int slhci_debug = D_MSG | D_XFER;
    145 #define DPRINTF(z,x)	if((slhci_debug&(z))!=0)printf x
    146 void		print_req(usb_device_request_t *);
    147 void		print_req_hub(usb_device_request_t *);
    148 void		print_dumpreg(struct slhci_softc *);
    149 void		print_xfer(usbd_xfer_handle);
    150 #else
    151 #define DPRINTF(z,x)
    152 #endif
    153 
    154 
    155 /* XXX: sync with argument */
    156 static char *sltypestr [] = {
    157 	"SL11H/T",
    158 	"SL811HS/T",
    159 };
    160 
    161 
    162 struct usbd_bus_methods slhci_bus_methods = {
    163 	slhci_open,
    164 	slhci_softintr,
    165 	slhci_poll,
    166 	slhci_allocm,
    167 	slhci_freem,
    168 	slhci_allocx,
    169 	slhci_freex,
    170 };
    171 
    172 struct usbd_pipe_methods slhci_root_ctrl_methods = {
    173 	slhci_root_ctrl_transfer,
    174 	slhci_root_ctrl_start,
    175 	slhci_root_ctrl_abort,
    176 	slhci_root_ctrl_close,
    177 	slhci_noop,
    178 	slhci_root_ctrl_done,
    179 };
    180 
    181 struct usbd_pipe_methods slhci_root_intr_methods = {
    182 	slhci_root_intr_transfer,
    183 	slhci_root_intr_start,
    184 	slhci_root_intr_abort,
    185 	slhci_root_intr_close,
    186 	slhci_noop,
    187 	slhci_root_intr_done,
    188 };
    189 
    190 struct usbd_pipe_methods slhci_device_ctrl_methods = {
    191 	slhci_device_ctrl_transfer,
    192 	slhci_device_ctrl_start,
    193 	slhci_device_ctrl_abort,
    194 	slhci_device_ctrl_close,
    195 	slhci_noop,
    196 	slhci_device_ctrl_done,
    197 };
    198 
    199 struct usbd_pipe_methods slhci_device_intr_methods = {
    200 	slhci_device_intr_transfer,
    201 	slhci_device_intr_start,
    202 	slhci_device_intr_abort,
    203 	slhci_device_intr_close,
    204 	slhci_device_clear_toggle,
    205 	slhci_device_intr_done,
    206 };
    207 
    208 struct usbd_pipe_methods slhci_device_isoc_methods = {
    209 	slhci_device_isoc_transfer,
    210 	slhci_device_isoc_start,
    211 	slhci_device_isoc_abort,
    212 	slhci_device_isoc_close,
    213 	slhci_noop,
    214 	slhci_device_isoc_done,
    215 };
    216 
    217 struct usbd_pipe_methods slhci_device_bulk_methods = {
    218 	slhci_device_bulk_transfer,
    219 	slhci_device_bulk_start,
    220 	slhci_device_bulk_abort,
    221 	slhci_device_bulk_close,
    222 	slhci_noop,
    223 	slhci_device_bulk_done,
    224 };
    225 
    226 struct slhci_pipe {
    227 	struct usbd_pipe pipe;
    228 };
    229 
    230 
    231 /*
    232  * SL811HS Register read/write routine
    233  */
    234 static inline u_int8_t
    235 sl11read(struct slhci_softc *sc, int reg)
    236 {
    237 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, SL11_IDX_ADDR, reg);
    238 	return bus_space_read_1(sc->sc_iot, sc->sc_ioh, SL11_IDX_DATA);
    239 }
    240 
    241 static inline void
    242 sl11write(struct slhci_softc *sc, int reg, u_int8_t data)
    243 {
    244 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, SL11_IDX_ADDR, reg);
    245 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, SL11_IDX_DATA, data);
    246 }
    247 
    248 static inline void
    249 sl11read_region(struct slhci_softc *sc, u_char *buf, int reg, int len)
    250 {
    251 	int i;
    252 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, SL11_IDX_ADDR, reg);
    253 	for (i = 0; i < len; i++)
    254 		buf[i] = bus_space_read_1(sc->sc_iot, sc->sc_ioh, SL11_IDX_DATA);
    255 }
    256 
    257 static inline void
    258 sl11write_region(struct slhci_softc *sc, int reg, u_char *buf, int len)
    259 {
    260 	int i;
    261 	bus_space_write_1(sc->sc_iot, sc->sc_ioh, SL11_IDX_ADDR, reg);
    262 	for (i = 0; i < len; i++)
    263 		bus_space_write_1(sc->sc_iot, sc->sc_ioh, SL11_IDX_DATA, buf[i]);
    264 }
    265 
    266 /*
    267  * USB bus reset. From sl811hs_appnote.pdf, p22
    268  */
    269 static void
    270 sl11_reset(struct slhci_softc *sc)
    271 {
    272 	u_int8_t r;
    273 
    274 	DPRINTF(D_TRACE, ("%s() ", __FUNCTION__));
    275 	r = sl11read(sc, SL11_CTRL);
    276 	sl11write(sc, SL11_CTRL, r | SL11_CTRL_RESETENGINE);
    277 	delay_ms(250);
    278 	sl11write(sc, SL11_CTRL, r | SL11_CTRL_RESETENGINE | SL11_CTRL_SUSPEND);
    279 	delay_ms(150);
    280 	sl11write(sc, SL11_CTRL, r | SL11_CTRL_RESETENGINE);
    281 	delay_ms(10);
    282 	sl11write(sc, SL11_CTRL, r);
    283 }
    284 
    285 /*
    286  * Detect the speed of attached device.
    287  */
    288 static void
    289 sl11_speed(struct slhci_softc *sc)
    290 {
    291 	u_int8_t r;
    292 
    293 	sl11write(sc, SL11_ISR, 0xff);
    294 	r = sl11read(sc, SL11_ISR);
    295 	if ((r & SL11_ISR_RESET)) {
    296 		DPRINTF(D_MSG, ("NC "));
    297 		sl11write(sc, SL11_ISR, SL11_ISR_RESET);
    298 		sc->sc_connect = 0;
    299 	}
    300 
    301 	if ((sl11read(sc, SL11_ISR) & SL11_ISR_RESET)) {
    302 		sl11write(sc, SL11_ISR, 0xff);
    303 	} else {
    304 		u_int8_t pol = 0, ctrl = 0;
    305 
    306 		sc->sc_connect = 1;
    307 		if (r & SL11_ISR_DATA) {
    308 			DPRINTF(D_MSG, ("FS "));
    309 			pol  = 0;
    310 			ctrl = SL11_CTRL_EOF2;
    311 			sc->sc_fullspeed = 1;
    312 		} else {
    313 			DPRINTF(D_MSG, ("LS "));
    314 			pol  = SL811_CSOF_POLARITY;
    315 			ctrl = SL11_CTRL_LOWSPEED;
    316 			sc->sc_fullspeed = 0;
    317 		}
    318 		sl11write(sc, SL811_CSOF, pol | SL811_CSOF_MASTER | 0x2e);
    319 		sl11write(sc, SL11_DATA, 0xe0);
    320 		sl11write(sc, SL11_CTRL, ctrl | SL11_CTRL_ENABLESOF);
    321 	}
    322 
    323 	sl11write(sc, SL11_E0PID,  (SL11_PID_SOF << 4) + 0);
    324 	sl11write(sc, SL11_E0DEV,  0);
    325 	sl11write(sc, SL11_E0CTRL, SL11_EPCTRL_ARM);
    326 	delay_ms(30);
    327 }
    328 
    329 /*
    330  * If detect some known controller, return the type.
    331  * If does not, return -1.
    332  */
    333 int
    334 sl811hs_find(struct slhci_softc *sc)
    335 {
    336 	int rev;
    337 
    338 	sc->sc_sltype = -1;
    339 	rev = sl11read(sc, SL11_REV) >> 4;
    340 	if (rev >= SLTYPE_SL11H && rev <= SLTYPE_SL811HS_R14)
    341 		sc->sc_sltype = rev;
    342 	return sc->sc_sltype;
    343 }
    344 
    345 /*
    346  * Attach SL11H/SL811HS. Return 0 if success.
    347  */
    348 int
    349 slhci_attach(struct slhci_softc *sc, struct device *self)
    350 {
    351 	int rev;
    352 
    353 	/* Detect and check the controller type */
    354 	rev = sl811hs_find(sc);
    355 	if (rev == -1)
    356 		return -1;
    357 
    358 	printf("%s: ScanLogic %s USB Host Controller",
    359 		sc->sc_bus.bdev.dv_xname, sltypestr[(rev > 0)]);
    360 	switch (rev) {
    361 	case SLTYPE_SL11H:
    362 		break;
    363 	case SLTYPE_SL811HS_R12:
    364 		printf(" (rev 1.2)");
    365 		break;
    366 	case SLTYPE_SL811HS_R14:
    367 		printf(" (rev 1.4)");
    368 		break;
    369 	default:
    370 		printf(" (unknown revision)");
    371 		break;
    372 	}
    373 	printf("\n");
    374 
    375 	/* Initialize sc */
    376 	sc->sc_bus.usbrev = USBREV_1_1;
    377 	sc->sc_bus.methods = &slhci_bus_methods;
    378 	sc->sc_bus.pipe_size = sizeof(struct slhci_pipe);
    379 	sc->sc_bus.dmatag = sc->sc_dmat;
    380 
    381 	SIMPLEQ_INIT(&sc->sc_free_xfers);
    382 
    383 	usb_callout_init(sc->sc_poll_handle);
    384 
    385 	/* Initialize controller */
    386 	sl11write(sc, SL811_CSOF, SL811_CSOF_MASTER | 0x2e);
    387 	sl11write(sc, SL11_ISR, 0xff);
    388 
    389 	/* Disable interrupt, then wait 40msec */
    390 	sl11write(sc, SL11_IER, 0x00);
    391 	delay_ms(40);
    392 
    393 	/* Reset USB engine */
    394 	sl11write(sc, SL11_CTRL, SL11_CTRL_RESETENGINE | SL11_CTRL_SUSPEND);
    395 	delay_ms(40);
    396 	sl11write(sc, SL11_CTRL, 0x00);
    397 	delay_ms(10);
    398 
    399 	/* USB Bus reset for GET_PORT_STATUS */
    400 	sl11_reset(sc);
    401 
    402 	/* Enable interrupt */
    403 	sl11write(sc, SL11_IER, SL11_IER_INSERT);
    404 	/* x68k Nereid USB controller needs it */
    405 	if (sc->sc_enable_intr)
    406 		sc->sc_enable_intr(sc->sc_arg, INTR_ON);
    407 
    408 #ifdef USB_DEBUG
    409 	usbdebug = 0;
    410 #endif
    411 
    412 	/* Attach USB devices */
    413 	sc->sc_child = config_found(self, &sc->sc_bus, usbctlprint);
    414 
    415 	return 0;
    416 }
    417 
    418 int
    419 slhci_intr(void *arg)
    420 {
    421 	struct slhci_softc *sc = arg;
    422 	u_int8_t r;
    423 #ifdef SLHCI_DEBUG
    424 	char bitbuf[256];
    425 #endif
    426 
    427 	r = sl11read(sc, SL11_ISR);
    428 
    429 	sl11write(sc, SL11_ISR, SL11_ISR_DATA | SL11_ISR_SOFTIMER);
    430 
    431 	if ((r & SL11_ISR_RESET)) {
    432 		sc->sc_flags |= SLF_RESET;
    433 		sl11write(sc, SL11_ISR, SL11_ISR_RESET);
    434 	}
    435 	if ((r & SL11_ISR_INSERT)) {
    436 		sc->sc_flags |= SLF_INSERT;
    437 		sl11write(sc, SL11_ISR, SL11_ISR_INSERT);
    438 	}
    439 
    440 #ifdef SLHCI_DEBUG
    441 	bitmask_snprintf(r,
    442 		(sl11read(sc, SL11_CTRL) & SL11_CTRL_SUSPEND)
    443 		? "\20\x8""D+\7RESUME\6INSERT\5SOF\4res\3""BABBLE\2USBB\1USBA"
    444 		: "\20\x8""D+\7RESET\6INSERT\5SOF\4res\3""BABBLE\2USBB\1USBA",
    445 		bitbuf, sizeof(bitbuf));
    446 	DPRINTF(D_XFER, ("I=%s ", bitbuf));
    447 #endif /* SLHCI_DEBUG */
    448 
    449 	return 0;
    450 }
    451 
    452 usbd_status
    453 slhci_open(usbd_pipe_handle pipe)
    454 {
    455 	usbd_device_handle dev = pipe->device;
    456 	struct slhci_softc *sc = (struct slhci_softc *)dev->bus;
    457 	usb_endpoint_descriptor_t *ed = pipe->endpoint->edesc;
    458 
    459 	DPRINTF(D_TRACE, ("slhci_open(addr=%d,ep=%d,scaddr=%d)",
    460 		dev->address, ed->bEndpointAddress, sc->sc_addr));
    461 
    462 	if (dev->address == sc->sc_addr) {
    463 		switch (ed->bEndpointAddress) {
    464 		case USB_CONTROL_ENDPOINT:
    465 			pipe->methods = &slhci_root_ctrl_methods;
    466 			break;
    467 		case UE_DIR_IN | SLHCI_INTR_ENDPT:
    468 			pipe->methods = &slhci_root_intr_methods;
    469 			break;
    470 		default:
    471 			printf("open:endpointErr!\n");
    472 			return USBD_INVAL;
    473 		}
    474 	} else {
    475 		switch (ed->bmAttributes & UE_XFERTYPE) {
    476 		case UE_CONTROL:
    477 			DPRINTF(D_MSG, ("control "));
    478 			pipe->methods = &slhci_device_ctrl_methods;
    479 			break;
    480 		case UE_INTERRUPT:
    481 			DPRINTF(D_MSG, ("interrupt "));
    482 			pipe->methods = &slhci_device_intr_methods;
    483 			break;
    484 		case UE_ISOCHRONOUS:
    485 			DPRINTF(D_MSG, ("isochronous "));
    486 			pipe->methods = &slhci_device_isoc_methods;
    487 			break;
    488 		case UE_BULK:
    489 			DPRINTF(D_MSG, ("bluk "));
    490 			pipe->methods = &slhci_device_bulk_methods;
    491 			break;
    492 		}
    493 	}
    494 	return USBD_NORMAL_COMPLETION;
    495 }
    496 
    497 void
    498 slhci_softintr(void *arg)
    499 {
    500 	DPRINTF(D_TRACE, ("%s()", __FUNCTION__));
    501 }
    502 
    503 void
    504 slhci_poll(struct usbd_bus *bus)
    505 {
    506 	DPRINTF(D_TRACE, ("%s()", __FUNCTION__));
    507 }
    508 
    509 /*
    510  * Emulation of interrupt transfer for status change endpoint
    511  * of root hub.
    512  */
    513 void
    514 slhci_poll_hub(void *arg)
    515 {
    516 	usbd_xfer_handle xfer = arg;
    517 	usbd_pipe_handle pipe = xfer->pipe;
    518 	struct slhci_softc *sc = (struct slhci_softc *)pipe->device->bus;
    519 	int s;
    520 	u_char *p;
    521 
    522 	usb_callout(sc->sc_poll_handle, sc->sc_interval, slhci_poll_hub, xfer);
    523 
    524 	/* USB spec 11.13.3 (p.260) */
    525 	p = KERNADDR(&xfer->dmabuf, 0);
    526 	p[0] = 0;
    527 	if ((sc->sc_flags & (SLF_INSERT | SLF_RESET))) {
    528 		p[0] = 2;
    529 		DPRINTF(D_TRACE, ("!"));
    530 	}
    531 
    532 	/* no change, return NAK */
    533 	if (p[0] == 0)
    534 		return;
    535 
    536 	xfer->actlen = 1;
    537 	xfer->status = USBD_NORMAL_COMPLETION;
    538 	s = splusb();
    539 	xfer->device->bus->intr_context++;
    540 	usb_transfer_complete(xfer);
    541 	xfer->device->bus->intr_context--;
    542 	splx(s);
    543 }
    544 
    545 usbd_status
    546 slhci_allocm(struct usbd_bus *bus, usb_dma_t *dma, u_int32_t size)
    547 {
    548 	struct slhci_softc *sc = (struct slhci_softc *)bus;
    549 
    550 	DPRINTF(D_MEM, ("SLallocm"));
    551 	return usb_allocmem(&sc->sc_bus, size, 0, dma);
    552 }
    553 
    554 void
    555 slhci_freem(struct usbd_bus *bus, usb_dma_t *dma)
    556 {
    557 	struct slhci_softc *sc = (struct slhci_softc *)bus;
    558 
    559 	DPRINTF(D_MEM, ("SLfreem"));
    560 	usb_freemem(&sc->sc_bus, dma);
    561 }
    562 
    563 usbd_xfer_handle
    564 slhci_allocx(struct usbd_bus *bus)
    565 {
    566 	struct slhci_softc *sc = (struct slhci_softc *)bus;
    567 	usbd_xfer_handle xfer;
    568 
    569 	DPRINTF(D_MEM, ("SLallocx"));
    570 
    571 	xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers);
    572 	if (xfer) {
    573 		SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next);
    574 #ifdef DIAGNOSTIC
    575 		if (xfer->busy_free != XFER_FREE) {
    576 			printf("slhci_allocx: xfer=%p not free, 0x%08x\n",
    577 				xfer, xfer->busy_free);
    578 		}
    579 #endif
    580 	} else {
    581 		xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT);
    582 	}
    583 
    584 	if (xfer) {
    585 		memset(xfer, 0, sizeof(*xfer));
    586 #ifdef DIAGNOSTIC
    587 		xfer->busy_free = XFER_BUSY;
    588 #endif
    589 	}
    590 
    591 	return xfer;
    592 }
    593 
    594 void
    595 slhci_freex(struct usbd_bus *bus, usbd_xfer_handle xfer)
    596 {
    597 	struct slhci_softc *sc = (struct slhci_softc *)bus;
    598 
    599 	DPRINTF(D_MEM, ("SLfreex"));
    600 
    601 #ifdef DIAGNOSTIC
    602 	if (xfer->busy_free != XFER_BUSY) {
    603 		printf("slhci_freex: xfer=%p not busy, 0x%08x\n",
    604 			xfer, xfer->busy_free);
    605 		return;
    606 	}
    607 	xfer->busy_free = XFER_FREE;
    608 #endif
    609 	SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, next);
    610 }
    611 
    612 void
    613 slhci_noop(usbd_pipe_handle pipe)
    614 {
    615 	DPRINTF(D_TRACE, ("%s()", __FUNCTION__));
    616 }
    617 
    618 /*
    619  * Data structures and routines to emulate the root hub.
    620  */
    621 usb_device_descriptor_t slhci_devd = {
    622 	USB_DEVICE_DESCRIPTOR_SIZE,
    623 	UDESC_DEVICE,		/* type */
    624 	{0x01, 0x01},			/* USB version */
    625 	UDCLASS_HUB,		/* class */
    626 	UDSUBCLASS_HUB,		/* subclass */
    627 	0,			/* protocol */
    628 	64,			/* max packet */
    629 	{USB_VENDOR_SCANLOGIC & 0xff,	/* vendor ID (low)  */
    630 	 USB_VENDOR_SCANLOGIC >> 8  },	/* vendor ID (high) */
    631 	{0} /* ? */,		/* product ID */
    632 	{0},			/* device */
    633 	1,			/* index to manufacturer */
    634 	2,			/* index to product */
    635 	0,			/* index to serial number */
    636 	1			/* number of configurations */
    637 };
    638 
    639 usb_config_descriptor_t slhci_confd = {
    640 	USB_CONFIG_DESCRIPTOR_SIZE,
    641 	UDESC_CONFIG,
    642 	{USB_CONFIG_DESCRIPTOR_SIZE +
    643 	 USB_INTERFACE_DESCRIPTOR_SIZE +
    644 	 USB_ENDPOINT_DESCRIPTOR_SIZE},
    645 	1,			/* number of interfaces */
    646 	1,			/* configuration value */
    647 	0,			/* index to configuration */
    648 	UC_SELF_POWERED,	/* attributes */
    649 	15			/* max current is 30mA... */
    650 };
    651 
    652 usb_interface_descriptor_t slhci_ifcd = {
    653 	USB_INTERFACE_DESCRIPTOR_SIZE,
    654 	UDESC_INTERFACE,
    655 	0,			/* interface number */
    656 	0,			/* alternate setting */
    657 	1,			/* number of endpoint */
    658 	UICLASS_HUB,		/* class */
    659 	UISUBCLASS_HUB,		/* subclass */
    660 	0,			/* protocol */
    661 	0			/* index to interface */
    662 };
    663 
    664 usb_endpoint_descriptor_t slhci_endpd = {
    665 	USB_ENDPOINT_DESCRIPTOR_SIZE,
    666 	UDESC_ENDPOINT,
    667 	UE_DIR_IN | SLHCI_INTR_ENDPT,	/* endpoint address */
    668 	UE_INTERRUPT,		/* attributes */
    669 	{8},			/* max packet size */
    670 	255			/* interval */
    671 };
    672 
    673 usb_hub_descriptor_t slhci_hubd = {
    674 	USB_HUB_DESCRIPTOR_SIZE,
    675 	UDESC_HUB,
    676 	1,			/* number of ports */
    677 	{UHD_PWR_INDIVIDUAL | UHD_OC_NONE, 0},	/* hub characteristics */
    678 	20 /* ? */,		/* 5:power on to power good */
    679 	50,			/* 6:maximum current */
    680 	{ 0x00 },		/* both ports are removable */
    681 	{ 0x00 }		/* port power control mask */
    682 };
    683 
    684 static int
    685 slhci_str(usb_string_descriptor_t *p, int l, char *s)
    686 {
    687 	int i;
    688 
    689 	if (l == 0)
    690 		return 0;
    691 	p->bLength = 2 * strlen(s) + 2;
    692 	if (l == 1)
    693 		return 1;
    694 	p->bDescriptorType = UDESC_STRING;
    695 	l -= 2;
    696 	for (i = 0; s[i] && l > 1; i++, l -= 2)
    697 		USETW2(p->bString[i], 0, s[i]);
    698 	return 2 * i + 2;
    699 }
    700 
    701 usbd_status
    702 slhci_root_ctrl_transfer(usbd_xfer_handle xfer)
    703 {
    704 	usbd_status error;
    705 
    706 	DPRINTF(D_TRACE, ("SLRCtrans "));
    707 
    708 	/* Insert last in queue */
    709 	error = usb_insert_transfer(xfer);
    710 	if (error) {
    711 		DPRINTF(D_MSG, ("usb_insert_transfer returns err! "));
    712 		return error;
    713 	}
    714 
    715 	/*
    716 	 * Pipe isn't running (otherwise error would be USBD_INPROG),
    717 	 * so start it first.
    718 	 */
    719 	return slhci_root_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue));
    720 }
    721 
    722 usbd_status
    723 slhci_root_ctrl_start(usbd_xfer_handle xfer)
    724 {
    725 	struct slhci_softc *sc = (struct slhci_softc *)xfer->pipe->device->bus;
    726 	usb_device_request_t *req;
    727 	int len, value, index, l, s, status;
    728 	int totlen = 0;
    729 	void *buf = NULL;
    730 	usb_port_status_t ps;
    731 	usbd_status error;
    732 	char slbuf[50];
    733 	u_int8_t r;
    734 
    735 	DPRINTF(D_TRACE, ("SLRCstart "));
    736 
    737 	req = &xfer->request;
    738 
    739 	len = UGETW(req->wLength);
    740 	value = UGETW(req->wValue);
    741 	index = UGETW(req->wIndex);
    742 
    743 	if (len)
    744 		buf = KERNADDR(&xfer->dmabuf, 0);
    745 
    746 #ifdef SLHCI_DEBUG
    747 	if ((slhci_debug & D_TRACE))
    748 		print_req_hub(req);
    749 #endif
    750 
    751 #define C(x,y) ((x) | ((y) << 8))
    752 	switch (C(req->bRequest, req->bmRequestType)) {
    753 	case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE):
    754 	case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE):
    755 	case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT):
    756 		DPRINTF(D_MSG, ("UR_CLEAR_FEATURE "));
    757 		break;
    758 	case C(UR_GET_CONFIG, UT_READ_DEVICE):
    759 		DPRINTF(D_MSG, ("UR_GET_CONFIG "));
    760 		if (len > 0) {
    761 			*(u_int8_t *)buf = sc->sc_conf;
    762 			totlen = 1;
    763 		}
    764 		break;
    765 	case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE):
    766 		switch (value >> 8) {
    767 		case UDESC_DEVICE:
    768 			DPRINTF(D_MSG, ("UDESC_DEVICE "));
    769 			if ((value & 0xff) != 0) {
    770 				error = USBD_IOERROR;
    771 				goto ret;
    772 			}
    773 			totlen = l = min(len, USB_DEVICE_DESCRIPTOR_SIZE);
    774 			memcpy(buf, &slhci_devd, l);
    775 			break;
    776 		case UDESC_CONFIG:
    777 			DPRINTF(D_MSG, ("UDESC_CONFIG "));
    778 			if ((value & 0xff) != 0) {
    779 				error = USBD_IOERROR;
    780 				goto ret;
    781 			}
    782 			totlen = l = min(len, USB_CONFIG_DESCRIPTOR_SIZE);
    783 			memcpy(buf, &slhci_confd, l);
    784 			buf = (char *)buf + l;
    785 			len -= l;
    786 
    787 			l = min(len, USB_INTERFACE_DESCRIPTOR_SIZE);
    788 			totlen += l;
    789 			memcpy(buf, &slhci_ifcd, l);
    790 			buf = (char *)buf + l;
    791 			len -= l;
    792 
    793 			l = min(len, USB_ENDPOINT_DESCRIPTOR_SIZE);
    794 			totlen += l;
    795 			memcpy(buf, &slhci_endpd, l);
    796 			break;
    797 		case UDESC_STRING:
    798 			DPRINTF(D_MSG, ("UDESC_STR "));
    799 			if (len == 0)
    800 				break;
    801 			*(u_int8_t *)buf = 0;
    802 			totlen = 1;
    803 			switch (value & 0xff) {
    804 			case 0:
    805 				break;
    806 			case 1:	/* Vendor */
    807 				totlen = slhci_str(buf, len, "ScanLogic");
    808 				break;
    809 			case 2:	/* Product */
    810 				sprintf(slbuf, "%s root hub", sltypestr[sc->sc_sltype]);
    811 				totlen = slhci_str(buf, len, slbuf);
    812 				break;
    813 			default:
    814 				printf("strerr%d ", value & 0xff);
    815 				break;
    816 			}
    817 			break;
    818 		default:
    819 			printf("unknownGetDescriptor=%x", value);
    820 			error = USBD_IOERROR;
    821 			break;
    822 		}
    823 		break;
    824 	case C(UR_GET_INTERFACE, UT_READ_INTERFACE):
    825 		/* Get Interface, 9.4.4 */
    826 		if (len > 0) {
    827 			*(u_int8_t *)buf = 0;
    828 			totlen = 1;
    829 		}
    830 		break;
    831 	case C(UR_GET_STATUS, UT_READ_DEVICE):
    832 		/* Get Status from device, 9.4.5 */
    833 		if (len > 1) {
    834 			USETW(((usb_status_t *)buf)->wStatus, UDS_SELF_POWERED);
    835 			totlen = 2;
    836 		}
    837 		break;
    838 	case C(UR_GET_STATUS, UT_READ_INTERFACE):
    839 	case C(UR_GET_STATUS, UT_READ_ENDPOINT):
    840 		/* Get Status from interface, endpoint, 9.4.5 */
    841 		if (len > 1) {
    842 			USETW(((usb_status_t *)buf)->wStatus, 0);
    843 			totlen = 2;
    844 		}
    845 		break;
    846 	case C(UR_SET_ADDRESS, UT_WRITE_DEVICE):
    847 		/* Set Address, 9.4.6 */
    848 		DPRINTF(D_MSG, ("UR_SET_ADDRESS "));
    849 		if (value >= USB_MAX_DEVICES) {
    850 			error = USBD_IOERROR;
    851 			goto ret;
    852 		}
    853 		sc->sc_addr = value;
    854 		break;
    855 	case C(UR_SET_CONFIG, UT_WRITE_DEVICE):
    856 		/* Set Configuration, 9.4.7 */
    857 		DPRINTF(D_MSG, ("UR_SET_CONFIG "));
    858 		if (value != 0 && value != 1) {
    859 			error = USBD_IOERROR;
    860 			goto ret;
    861 		}
    862 		sc->sc_conf = value;
    863 		break;
    864 	case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE):
    865 		/* Set Descriptor, 9.4.8, not supported */
    866 		DPRINTF(D_MSG, ("UR_SET_DESCRIPTOR,WRITE_DEVICE not supported\n"));
    867 		break;
    868 	case C(UR_SET_FEATURE, UT_WRITE_DEVICE):
    869 	case C(UR_SET_FEATURE, UT_WRITE_INTERFACE):
    870 	case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT):
    871 		/* Set Feature, 9.4.9, not supported */
    872 		DPRINTF(D_MSG, ("UR_SET_FEATURE not supported\n"));
    873 		error = USBD_IOERROR;
    874 		break;
    875 	case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE):
    876 		/* Set Interface, 9.4.10, not supported */
    877 		break;
    878 	case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT):
    879 		/* Synch Frame, 9.4.11, not supported */
    880 		break;
    881 
    882 	/*
    883 	 * Hub specific requests
    884 	 */
    885 	case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE):
    886 		/* Clear Hub Feature, 11.16.2.1, not supported */
    887 		DPRINTF(D_MSG, ("ClearHubFeature not supported\n"));
    888 		break;
    889 	case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER):
    890 		/* Clear Port Feature, 11.16.2.2 */
    891 		if (index != 1) {
    892 			error = USBD_IOERROR;
    893 			goto ret;
    894 		}
    895 		switch (value) {
    896 		case UHF_PORT_POWER:
    897 			DPRINTF(D_MSG, ("POWER_OFF "));
    898 			sc->sc_powerstat = POWER_OFF;
    899 			/* x68k Nereid USB controller needs it */
    900 			if (sc->sc_enable_power)
    901 				sc->sc_enable_power(sc, sc->sc_powerstat);
    902 			break;
    903 		case UHF_PORT_SUSPEND:
    904 			DPRINTF(D_MSG, ("SUSPEND "));
    905 			sl11write(sc, SL11_CTRL,
    906 				sl11read(sc, SL11_CTRL) & ~SL11_CTRL_SUSPEND);
    907 			break;
    908 		case UHF_C_PORT_CONNECTION:
    909 			sc->sc_change &= ~UPS_C_CONNECT_STATUS;
    910 			break;
    911 		case UHF_C_PORT_RESET:
    912 			sc->sc_change &= ~UPS_C_PORT_RESET;
    913 			break;
    914 		case UHF_PORT_ENABLE:
    915 			break;
    916 		case UHF_C_PORT_SUSPEND:
    917 		case UHF_C_PORT_ENABLE:
    918 		case UHF_C_PORT_OVER_CURRENT:
    919 		default:
    920 			printf("ClrPortFeatERR:value=0x%x ", value);
    921 			error = USBD_IOERROR;
    922 			break;
    923 		}
    924 		//DPRINTF(D_XFER, ("CH=%04x ", sc->sc_change));
    925 		break;
    926 	case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER):
    927 		/* Get Bus State, 11.16.2.3, not supported */
    928 		/* shall return a STALL... */
    929 		break;
    930 	case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE):
    931 		/* Get Hub Descriptor, 11.16.2.4 */
    932 		if (value != 0) {
    933 			error = USBD_IOERROR;
    934 			goto ret;
    935 		}
    936 		l = min(len, USB_HUB_DESCRIPTOR_SIZE);
    937 		totlen = l;
    938 		memcpy(buf, &slhci_hubd, l);
    939 		break;
    940 	case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE):
    941 		/* Get Hub Status, 11.16.2.5 */
    942 		DPRINTF(D_MSG, ("UR_GET_STATUS RCD"));
    943 		if (len != 4) {
    944 			error = USBD_IOERROR;
    945 			goto ret;
    946 		}
    947 		memset(buf, 0, len);
    948 		totlen = len;
    949 		break;
    950 	case C(UR_GET_STATUS, UT_READ_CLASS_OTHER):
    951 		/* Get Port Status, 11.16.2.6 */
    952 		if (index != 1 || len != 4) {
    953 			printf("index=%d,len=%d ", index, len);
    954 			error = USBD_IOERROR;
    955 			goto ret;
    956 		}
    957 		/*
    958 		 * change
    959 		 * o port is always enabled.
    960 		 * o cannot detect over current.
    961 		 */
    962 		s = splusb();
    963 		sc->sc_change &= ~(UPS_C_CONNECT_STATUS | UPS_C_PORT_RESET);
    964 		if ((sc->sc_flags & SLF_INSERT)) {
    965 			sc->sc_flags &= ~SLF_INSERT;
    966 			sc->sc_change |= UPS_C_CONNECT_STATUS;
    967 		}
    968 		if ((sc->sc_flags & SLF_RESET)) {
    969 			sc->sc_flags &= ~SLF_RESET;
    970 			sc->sc_change |= UPS_C_PORT_RESET;
    971 		}
    972 		splx(s);
    973 		/*
    974 		 * XXX It can recognize that device is detached,
    975 		 * while there is sl11_speed() here.
    976 		 */
    977 		if (sc->sc_change)
    978 			sl11_speed(sc);
    979 		/*
    980 		 * status
    981 		 * o port is always enabled.
    982 		 * o cannot detect over current.
    983 		 */
    984 		status = 0;
    985 		if (sc->sc_connect)
    986 			status |= UPS_CURRENT_CONNECT_STATUS | UPS_PORT_ENABLED;
    987 		r = sl11read(sc, SL11_CTRL);
    988 		if (r & SL11_CTRL_SUSPEND)
    989 			status |= UPS_SUSPEND;
    990 		if (sc->sc_powerstat)
    991 			status |= UPS_PORT_POWER;
    992 		if (!sc->sc_fullspeed)
    993 			status |= UPS_LOW_SPEED;
    994 
    995 		//DPRINTF(D_XFER, ("ST=%04x,CH=%04x ", status, sc->sc_change));
    996 		USETW(ps.wPortStatus, status);
    997 		USETW(ps.wPortChange, sc->sc_change);
    998 		l = min(len, sizeof(ps));
    999 		memcpy(buf, &ps, l);
   1000 		totlen = l;
   1001 		break;
   1002 	case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE):
   1003 		/* Set Hub Descriptor, 11.16.2.7, not supported */
   1004 		/* STALL ? */
   1005 		error = USBD_IOERROR;
   1006 		break;
   1007 	case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE):
   1008 		/* Set Hub Feature, 11.16.2.8, not supported */
   1009 		break;
   1010 	case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER):
   1011 		/* Set Port Feature, 11.16.2.9 */
   1012 		if (index != 1) {
   1013 			printf("index=%d ", index);
   1014 			error = USBD_IOERROR;
   1015 			goto ret;
   1016 		}
   1017 		switch (value) {
   1018 		case UHF_PORT_RESET:
   1019 			DPRINTF(D_MSG, ("PORT_RESET "));
   1020 			sl11_reset(sc);
   1021 			sl11_speed(sc);
   1022 			sc->sc_change = 0;
   1023 			break;
   1024 		case UHF_PORT_POWER:
   1025 			DPRINTF(D_MSG, ("PORT_POWER "));
   1026 			sc->sc_powerstat = POWER_ON;
   1027 			/* x68k Nereid USB controller needs it */
   1028 			if (sc->sc_enable_power)
   1029 				sc->sc_enable_power(sc, sc->sc_powerstat);
   1030 			delay_ms(25);
   1031 			break;
   1032 		default:
   1033 			printf("SetPortFeatERR=0x%x ", value);
   1034 			error = USBD_IOERROR;
   1035 			break;
   1036 		}
   1037 		break;
   1038 	default:
   1039 		DPRINTF(D_MSG, ("ioerr(UR=%02x,UT=%02x) ",
   1040 			req->bRequest, req->bmRequestType));
   1041 		error = USBD_IOERROR;
   1042 		goto ret;
   1043 	}
   1044 	xfer->actlen = totlen;
   1045 	error = USBD_NORMAL_COMPLETION;
   1046  ret:
   1047 	xfer->status = error;
   1048 	s = splusb();
   1049 	usb_transfer_complete(xfer);
   1050 	splx(s);
   1051 	return USBD_IN_PROGRESS;
   1052 }
   1053 
   1054 void
   1055 slhci_root_ctrl_abort(usbd_xfer_handle xfer)
   1056 {
   1057 	DPRINTF(D_TRACE, ("SLRCabort "));
   1058 }
   1059 
   1060 void
   1061 slhci_root_ctrl_close(usbd_pipe_handle pipe)
   1062 {
   1063 	DPRINTF(D_TRACE, ("SLRCclose "));
   1064 }
   1065 
   1066 void
   1067 slhci_root_ctrl_done(usbd_xfer_handle xfer)
   1068 {
   1069 	DPRINTF(D_TRACE, ("SLRCdone\n"));
   1070 }
   1071 
   1072 static usbd_status
   1073 slhci_root_intr_transfer(usbd_xfer_handle xfer)
   1074 {
   1075 	usbd_status error;
   1076 
   1077 	DPRINTF(D_TRACE, ("SLRItransfer "));
   1078 
   1079 	/* Insert last in queue */
   1080 	error = usb_insert_transfer(xfer);
   1081 	if (error)
   1082 		return error;
   1083 
   1084 	/*
   1085 	 * Pipe isn't running (otherwise error would be USBD_INPROG),
   1086 	 * start first.
   1087 	 */
   1088 	return slhci_root_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue));
   1089 }
   1090 
   1091 static usbd_status
   1092 slhci_root_intr_start(usbd_xfer_handle xfer)
   1093 {
   1094 	usbd_pipe_handle pipe = xfer->pipe;
   1095 	struct slhci_softc *sc = (struct slhci_softc *)pipe->device->bus;
   1096 
   1097 	DPRINTF(D_TRACE, ("SLRIstart "));
   1098 
   1099 	sc->sc_interval = MS_TO_TICKS(xfer->pipe->endpoint->edesc->bInterval);
   1100 	usb_callout(sc->sc_poll_handle, sc->sc_interval, slhci_poll_hub, xfer);
   1101 	sc->sc_intr_xfer = xfer;
   1102 	return USBD_IN_PROGRESS;
   1103 }
   1104 
   1105 static void
   1106 slhci_root_intr_abort(usbd_xfer_handle xfer)
   1107 {
   1108 	DPRINTF(D_TRACE, ("SLRIabort "));
   1109 }
   1110 
   1111 static void
   1112 slhci_root_intr_close(usbd_pipe_handle pipe)
   1113 {
   1114 	struct slhci_softc *sc = (struct slhci_softc *)pipe->device->bus;
   1115 
   1116 	DPRINTF(D_TRACE, ("SLRIclose "));
   1117 
   1118 	usb_uncallout(sc->sc_poll_handle, slhci_poll_hub, sc->sc_intr_xfer);
   1119 	sc->sc_intr_xfer = NULL;
   1120 }
   1121 
   1122 static void
   1123 slhci_root_intr_done(usbd_xfer_handle xfer)
   1124 {
   1125 	//DPRINTF(D_XFER, ("RIdn "));
   1126 }
   1127 
   1128 static usbd_status
   1129 slhci_device_ctrl_transfer(usbd_xfer_handle xfer)
   1130 {
   1131 	usbd_status error;
   1132 
   1133 	DPRINTF(D_TRACE, ("C"));
   1134 
   1135 	error = usb_insert_transfer(xfer);
   1136 	if (error)
   1137 		return error;
   1138 
   1139 	return slhci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->pipe->queue));
   1140 }
   1141 
   1142 static usbd_status
   1143 slhci_device_ctrl_start(usbd_xfer_handle xfer)
   1144 {
   1145 	usb_device_request_t *req = &xfer->request;
   1146 	usbd_pipe_handle pipe = xfer->pipe;
   1147 	struct slhci_softc *sc = (struct slhci_softc *)pipe->device->bus;
   1148 	usbd_status status =  USBD_NORMAL_COMPLETION;
   1149 	void *buf;
   1150 	int pid = SL11_PID_OUT;
   1151 	int len, actlen, size;
   1152 	int s;
   1153 	u_int8_t toggle = 0;
   1154 
   1155 	DPRINTF(D_TRACE, ("st "));
   1156 #ifdef SLHCI_DEBUG
   1157 	if ((slhci_debug & D_TRACE))
   1158 		print_req_hub(req);
   1159 #endif
   1160 
   1161 	/* SETUP transaction */
   1162 	if (slhci_transaction(sc, pipe, SL11_PID_SETUP,
   1163 			sizeof(*req), (u_char*)req, toggle) == -1) {
   1164 		status = USBD_IOERROR;
   1165 		goto ret;
   1166 	}
   1167 	toggle ^= SL11_EPCTRL_DATATOGGLE;
   1168 
   1169 	/* DATA transaction */
   1170 	actlen = 0;
   1171 	len = UGETW(req->wLength);
   1172 	if (len) {
   1173 		buf = KERNADDR(&xfer->dmabuf, 0);
   1174 		if (req->bmRequestType & UT_READ)
   1175 			pid = SL11_PID_IN;
   1176 		for (; actlen < len; ) {
   1177 			size = min(len - actlen, 8/* Minimum size */);
   1178 			if (slhci_transaction(sc, pipe, pid, size, buf, toggle) == -1)
   1179 				break;
   1180 			toggle ^= SL11_EPCTRL_DATATOGGLE;
   1181 			(u_char*)buf += size;
   1182 			actlen += size;
   1183 		}
   1184 	}
   1185 	xfer->actlen = actlen;
   1186 
   1187 	/* ACK (status) */
   1188 	if (pid == SL11_PID_IN)
   1189 		pid = SL11_PID_OUT;
   1190 	else
   1191 		pid = SL11_PID_IN;
   1192 	if (slhci_transaction(sc, pipe, pid, 0, NULL, toggle) == -1)
   1193 		status = USBD_IOERROR;
   1194 
   1195  ret:
   1196 	xfer->status = status;
   1197 
   1198 #ifdef SLHCI_DEBUG
   1199 	if((slhci_debug & D_TRACE) && UGETW(req->wLength) > 0){
   1200 		int i;
   1201 		for(i=0; i < UGETW(req->wLength); i++)
   1202 			printf("%02x", *(unsigned char*)(KERNADDR(&xfer->dmabuf, i)));
   1203 		printf(" ");
   1204 	}
   1205 #endif
   1206 	s = splusb();
   1207 	usb_transfer_complete(xfer);
   1208 	splx(s);
   1209 	return USBD_IN_PROGRESS;
   1210 }
   1211 
   1212 static void
   1213 slhci_device_ctrl_abort(usbd_xfer_handle xfer)
   1214 {
   1215 	DPRINTF(D_TRACE, ("Cab "));
   1216 	slhci_abort_xfer(xfer, USBD_CANCELLED);
   1217 }
   1218 
   1219 static void
   1220 slhci_device_ctrl_close(usbd_pipe_handle pipe)
   1221 {
   1222 	DPRINTF(D_TRACE, ("Ccl "));
   1223 }
   1224 
   1225 static void
   1226 slhci_device_ctrl_done(usbd_xfer_handle xfer)
   1227 {
   1228 	DPRINTF(D_TRACE, ("Cdn "));
   1229 }
   1230 
   1231 static usbd_status
   1232 slhci_device_intr_transfer(usbd_xfer_handle xfer)
   1233 {
   1234 	usbd_status error;
   1235 
   1236 	DPRINTF(D_TRACE, ("INTRtrans "));
   1237 
   1238 	error = usb_insert_transfer(xfer);
   1239 	if (error)
   1240 		return error;
   1241 
   1242 	return slhci_device_intr_start(SIMPLEQ_FIRST(&xfer->pipe->queue));
   1243 }
   1244 
   1245 static usbd_status
   1246 slhci_device_intr_start(usbd_xfer_handle xfer)
   1247 {
   1248 	usbd_pipe_handle pipe = xfer->pipe;
   1249 	struct slhci_xfer *sx;
   1250 
   1251 	DPRINTF(D_TRACE, ("INTRstart "));
   1252 
   1253 	sx = malloc(sizeof(*sx), M_USB, M_NOWAIT);
   1254 	if (sx == NULL)
   1255 		goto reterr;
   1256 	memset(sx, 0, sizeof(*sx));
   1257 	sx->sx_xfer  = xfer;
   1258 	xfer->hcpriv = sx;
   1259 
   1260 	/* initialize callout */
   1261 	usb_callout_init(sx->sx_callout_t);
   1262 	usb_callout(sx->sx_callout_t,
   1263 		MS_TO_TICKS(pipe->endpoint->edesc->bInterval),
   1264 		slhci_poll_device, sx);
   1265 
   1266 	/* ACK */
   1267 	return USBD_IN_PROGRESS;
   1268 
   1269  reterr:
   1270 	return USBD_IOERROR;
   1271 }
   1272 
   1273 static void
   1274 slhci_poll_device(void *arg)
   1275 {
   1276 	struct slhci_xfer *sx = (struct slhci_xfer *)arg;
   1277 	usbd_xfer_handle xfer = sx->sx_xfer;
   1278 	usbd_pipe_handle pipe = xfer->pipe;
   1279 	struct slhci_softc *sc = (struct slhci_softc *)pipe->device->bus;
   1280 	void *buf;
   1281 	int pid;
   1282 	int r;
   1283 	int s;
   1284 
   1285 	DPRINTF(D_TRACE, ("pldev"));
   1286 
   1287 	usb_callout(sx->sx_callout_t,
   1288 		MS_TO_TICKS(pipe->endpoint->edesc->bInterval),
   1289 		slhci_poll_device, sx);
   1290 
   1291 	/* interrupt transfer */
   1292 	pid = (UE_GET_DIR(pipe->endpoint->edesc->bEndpointAddress) == UE_DIR_IN)
   1293 	    ? SL11_PID_IN : SL11_PID_OUT;
   1294 	buf = KERNADDR(&xfer->dmabuf, 0);
   1295 
   1296 	r = slhci_transaction(sc, pipe, pid, xfer->length, buf, 0/*toggle*/);
   1297 	if (r < 0) {
   1298 		DPRINTF(D_MSG, ("%s error", __FUNCTION__));
   1299 		return;
   1300 	}
   1301 	/* no change, return NAK */
   1302 	if (r == 0)
   1303 		return;
   1304 
   1305 	xfer->status = USBD_NORMAL_COMPLETION;
   1306 	s = splusb();
   1307 	xfer->device->bus->intr_context++;
   1308 	usb_transfer_complete(xfer);
   1309 	xfer->device->bus->intr_context--;
   1310 	splx(s);
   1311 }
   1312 
   1313 static void
   1314 slhci_device_intr_abort(usbd_xfer_handle xfer)
   1315 {
   1316 	struct slhci_xfer *sx;
   1317 
   1318 	DPRINTF(D_TRACE, ("INTRabort "));
   1319 
   1320 	sx = xfer->hcpriv;
   1321 	if (sx) {
   1322 		usb_uncallout(sx->sx_callout_t, slhci_poll_device, sx);
   1323 		free(sx, M_USB);
   1324 		xfer->hcpriv = NULL;
   1325 	} else {
   1326 		printf("%s: sx == NULL!\n", __FUNCTION__);
   1327 	}
   1328 	slhci_abort_xfer(xfer, USBD_CANCELLED);
   1329 }
   1330 
   1331 static void
   1332 slhci_device_intr_close(usbd_pipe_handle pipe)
   1333 {
   1334 	DPRINTF(D_TRACE, ("INTRclose "));
   1335 }
   1336 
   1337 static void
   1338 slhci_device_intr_done(usbd_xfer_handle xfer)
   1339 {
   1340 	DPRINTF(D_TRACE, ("INTRdone "));
   1341 }
   1342 
   1343 static usbd_status
   1344 slhci_device_isoc_transfer(usbd_xfer_handle xfer)
   1345 {
   1346 	DPRINTF(D_TRACE, ("S"));
   1347 	return USBD_NORMAL_COMPLETION;
   1348 }
   1349 
   1350 static usbd_status
   1351 slhci_device_isoc_start(usbd_xfer_handle xfer)
   1352 {
   1353 	DPRINTF(D_TRACE, ("st "));
   1354 	return USBD_NORMAL_COMPLETION;
   1355 }
   1356 
   1357 static void
   1358 slhci_device_isoc_abort(usbd_xfer_handle xfer)
   1359 {
   1360 	DPRINTF(D_TRACE, ("Sab "));
   1361 }
   1362 
   1363 static void
   1364 slhci_device_isoc_close(usbd_pipe_handle pipe)
   1365 {
   1366 	DPRINTF(D_TRACE, ("Scl "));
   1367 }
   1368 
   1369 static void
   1370 slhci_device_isoc_done(usbd_xfer_handle xfer)
   1371 {
   1372 	DPRINTF(D_TRACE, ("Sdn "));
   1373 }
   1374 
   1375 static usbd_status
   1376 slhci_device_bulk_transfer(usbd_xfer_handle xfer)
   1377 {
   1378 	DPRINTF(D_TRACE, ("B"));
   1379 	return USBD_NORMAL_COMPLETION;
   1380 }
   1381 
   1382 static usbd_status
   1383 slhci_device_bulk_start(usbd_xfer_handle xfer)
   1384 {
   1385 	DPRINTF(D_TRACE, ("st "));
   1386 	return USBD_NORMAL_COMPLETION;
   1387 }
   1388 
   1389 static void
   1390 slhci_device_bulk_abort(usbd_xfer_handle xfer)
   1391 {
   1392 	DPRINTF(D_TRACE, ("Bab "));
   1393 }
   1394 
   1395 static void
   1396 slhci_device_bulk_close(usbd_pipe_handle pipe)
   1397 {
   1398 	DPRINTF(D_TRACE, ("Bcl "));
   1399 }
   1400 
   1401 static void
   1402 slhci_device_bulk_done(usbd_xfer_handle xfer)
   1403 {
   1404 	DPRINTF(D_TRACE, ("Bdn "));
   1405 }
   1406 
   1407 #define DATA0_RD	(0x03)
   1408 #define DATA0_WR	(0x07)
   1409 #define SLHCI_TIMEOUT	(5000)
   1410 
   1411 /*
   1412  * Do a transaction.
   1413  * return 1 if ACK, 0 if NAK, -1 if error.
   1414  */
   1415 static int
   1416 slhci_transaction(struct slhci_softc *sc, usbd_pipe_handle pipe,
   1417 	u_int8_t pid, int len, u_char *buf, u_int8_t toggle)
   1418 {
   1419 #ifdef SLHCI_DEBUG
   1420 	char str[64];
   1421 	int i;
   1422 #endif
   1423 	int timeout;
   1424 	int ls_via_hub = 0;
   1425 	int pl;
   1426 	u_int8_t isr;
   1427 	u_int8_t result = 0;
   1428 	u_int8_t devaddr = pipe->device->address;
   1429 	u_int8_t endpointaddr = pipe->endpoint->edesc->bEndpointAddress;
   1430 	u_int8_t endpoint;
   1431 	u_int8_t cmd = DATA0_RD;
   1432 
   1433 	endpoint = UE_GET_ADDR(endpointaddr);
   1434 	DPRINTF(D_XFER, ("\n(%x,%d%s%d,%d) ",
   1435 		pid, len, (pid == SL11_PID_IN) ? "<-" : "->", devaddr, endpoint));
   1436 
   1437 	/* Set registers */
   1438 	sl11write(sc, SL11_E0ADDR, 0x40);
   1439 	sl11write(sc, SL11_E0LEN,  len);
   1440 	sl11write(sc, SL11_E0PID,  (pid << 4) + endpoint);
   1441 	sl11write(sc, SL11_E0DEV,  devaddr);
   1442 
   1443 	/* Set buffer unless PID_IN */
   1444 	if (pid != SL11_PID_IN) {
   1445 		if (len > 0)
   1446 			sl11write_region(sc, 0x40, buf, len);
   1447 		cmd = DATA0_WR;
   1448 	}
   1449 
   1450 	/* timing ? */
   1451 	pl = (len >> 3) + 3;
   1452 
   1453 	/* Low speed device via HUB */
   1454 	/* XXX does not work... */
   1455 	if ((sc->sc_fullspeed) && pipe->device->speed == USB_SPEED_LOW) {
   1456 		pl = len + 16;
   1457 		cmd |= SL11_EPCTRL_PREAMBLE;
   1458 
   1459 		/*
   1460 		 * SL811HS/T rev 1.2 has a bug, when it got PID_IN
   1461 		 * from LowSpeed device via HUB.
   1462 		 */
   1463 		if (sc->sc_sltype == SLTYPE_SL811HS_R12 && pid == SL11_PID_IN) {
   1464 			ls_via_hub = 1;
   1465 			DPRINTF(D_MSG, ("LSvH "));
   1466 		}
   1467 	}
   1468 
   1469 	/* timing ? */
   1470 	if (sl11read(sc, SL811_CSOF) <= (u_int8_t)pl)
   1471 		cmd |= SL11_EPCTRL_SOF;
   1472 
   1473 	/* Transfer */
   1474 	sl11write(sc, SL11_ISR, 0xff);
   1475 	sl11write(sc, SL11_E0CTRL, cmd | toggle);
   1476 
   1477 	/* Polling */
   1478 	for (timeout = SLHCI_TIMEOUT; timeout; timeout--) {
   1479 		isr = sl11read(sc, SL11_ISR);
   1480 		if ((isr & SL11_ISR_USBA))
   1481 			break;
   1482 	}
   1483 
   1484 	/* Check result status */
   1485 	result = sl11read(sc, SL11_E0STAT);
   1486 	if (!(result & SL11_EPSTAT_NAK) && ls_via_hub) {
   1487 		/* Resend PID_IN within 20usec */
   1488 		sl11write(sc, SL11_ISR, 0xff);
   1489 		sl11write(sc, SL11_E0CTRL, SL11_EPCTRL_ARM);
   1490 	}
   1491 
   1492 	sl11write(sc, SL11_ISR, 0xff);
   1493 
   1494 	DPRINTF(D_XFER, ("t=%d i=%x ", SLHCI_TIMEOUT - timeout, isr));
   1495 #if SLHCI_DEBUG
   1496 	bitmask_snprintf(result,
   1497 		"\20\x8STALL\7NAK\6OV\5SETUP\4DATA1\3TIMEOUT\2ERR\1ACK",
   1498 		str, sizeof(str));
   1499 	DPRINTF(D_XFER, ("STAT=%s ", str));
   1500 #endif
   1501 
   1502 	if ((result & SL11_EPSTAT_ERROR))
   1503 		return -1;
   1504 
   1505 	if ((result & SL11_EPSTAT_NAK))
   1506 		return 0;
   1507 
   1508 	/* Read buffer if PID_IN */
   1509 	if (pid == SL11_PID_IN && len > 0) {
   1510 		sl11read_region(sc, buf, 0x40, len);
   1511 #if SLHCI_DEBUG
   1512 		for (i = 0; i < len; i++)
   1513 			DPRINTF(D_XFER, ("%02X ", buf[i]));
   1514 #endif
   1515 	}
   1516 
   1517 	return 1;
   1518 }
   1519 
   1520 void
   1521 slhci_abort_xfer(usbd_xfer_handle xfer, usbd_status status)
   1522 {
   1523 	xfer->status = status;
   1524 	usb_transfer_complete(xfer);
   1525 }
   1526 
   1527 void
   1528 slhci_device_clear_toggle(usbd_pipe_handle pipe)
   1529 {
   1530 	DPRINTF(D_TRACE, ("SLdevice_clear_toggle "));
   1531 }
   1532 
   1533 #ifdef SLHCI_DEBUG
   1534 void
   1535 print_req(usb_device_request_t *r)
   1536 {
   1537 	char *xmes[]={
   1538 		"GETSTAT",
   1539 		"CLRFEAT",
   1540 		"res",
   1541 		"SETFEAT",
   1542 		"res",
   1543 		"SETADDR",
   1544 		"GETDESC",
   1545 		"SETDESC",
   1546 		"GETCONF",
   1547 		"SETCONF",
   1548 		"GETIN/F",
   1549 		"SETIN/F",
   1550 		"SYNC_FR"
   1551 	};
   1552 	int req, type, value, index, len;
   1553 
   1554 	req   = r->bRequest;
   1555 	type  = r->bmRequestType;
   1556 	value = UGETW(r->wValue);
   1557 	index = UGETW(r->wIndex);
   1558 	len   = UGETW(r->wLength);
   1559 
   1560 	printf("%x,%s,v=%d,i=%d,l=%d ",
   1561 		type, xmes[req], value, index, len);
   1562 }
   1563 
   1564 void
   1565 print_req_hub(usb_device_request_t *r)
   1566 {
   1567 	struct {
   1568 		int req;
   1569 		int type;
   1570 		char *str;
   1571 	} conf[] = {
   1572 		{ 1, 0x20, "ClrHubFeat"  },
   1573 		{ 1, 0x23, "ClrPortFeat" },
   1574 		{ 2, 0xa3, "GetBusState" },
   1575 		{ 6, 0xa0, "GetHubDesc"  },
   1576 		{ 0, 0xa0, "GetHubStat"  },
   1577 		{ 0, 0xa3, "GetPortStat" },
   1578 		{ 7, 0x20, "SetHubDesc"  },
   1579 		{ 3, 0x20, "SetHubFeat"  },
   1580 		{ 3, 0x23, "SetPortFeat" },
   1581 		{-1, 0, NULL},
   1582 	};
   1583 	int i;
   1584 	int value, index, len;
   1585 
   1586 	value = UGETW(r->wValue);
   1587 	index = UGETW(r->wIndex);
   1588 	len   = UGETW(r->wLength);
   1589 	for (i = 0; ; i++) {
   1590 		if (conf[i].req == -1 )
   1591 			return print_req(r);
   1592 		if (r->bmRequestType == conf[i].type && r->bRequest == conf[i].req) {
   1593 			printf("%s", conf[i].str);
   1594 			break;
   1595 		}
   1596 	}
   1597 	printf(",v=%d,i=%d,l=%d ", value, index, len);
   1598 }
   1599 
   1600 void
   1601 print_dumpreg(struct slhci_softc *sc)
   1602 {
   1603 	printf("00=%02x,01=%02x,02=%02x,03=%02x,04=%02x,"
   1604 	       "08=%02x,09=%02x,0A=%02x,0B=%02x,0C=%02x,",
   1605 		sl11read(sc, 0),  sl11read(sc, 1),
   1606 		sl11read(sc, 2),  sl11read(sc, 3),
   1607 		sl11read(sc, 4),  sl11read(sc, 8),
   1608 		sl11read(sc, 9),  sl11read(sc, 10),
   1609 		sl11read(sc, 11), sl11read(sc, 12)
   1610 	);
   1611 	printf("CR1=%02x,IER=%02x,0D=%02x,0E=%02x,0F=%02x ",
   1612 		sl11read(sc, 5), sl11read(sc, 6),
   1613 		sl11read(sc, 13), sl11read(sc, 14), sl11read(sc, 15)
   1614 	);
   1615 }
   1616 
   1617 void
   1618 print_xfer(usbd_xfer_handle xfer)
   1619 {
   1620 	printf("xfer: length=%d, actlen=%d, flags=%x, timeout=%d,",
   1621 		xfer->length, xfer->actlen, xfer->flags, xfer->timeout);
   1622 	printf("request{ ");
   1623 	print_req_hub(&xfer->request);
   1624 	printf("} ");
   1625 }
   1626 #endif /* SLHCI_DEBUG */
   1627