Home | History | Annotate | Line # | Download | only in dev
ahci.c revision 1.15
      1 /*	$NetBSD: ahci.c,v 1.15 2018/04/09 16:21:10 jakllsch Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or
      8  * without modification, are permitted provided that the following
      9  * conditions are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above
     13  *    copyright notice, this list of conditions and the following
     14  *    disclaimer in the documentation and/or other materials provided
     15  *    with the distribution.
     16  * 3. The names of the authors may not be used to endorse or promote
     17  *    products derived from this software without specific prior
     18  *    written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY
     21  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
     23  * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS
     24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
     25  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
     27  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
     29  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     30  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
     31  * OF SUCH DAMAGE.
     32  */
     33 /*
     34  * Copyright (c) 2001 The NetBSD Foundation, Inc.
     35  * All rights reserved.
     36  *
     37  * This code is derived from software contributed to The NetBSD Foundation
     38  * by Tetsuya Isaki.
     39  *
     40  * Redistribution and use in source and binary forms, with or without
     41  * modification, are permitted provided that the following conditions
     42  * are met:
     43  * 1. Redistributions of source code must retain the above copyright
     44  *    notice, this list of conditions and the following disclaimer.
     45  * 2. Redistributions in binary form must reproduce the above copyright
     46  *    notice, this list of conditions and the following disclaimer in the
     47  *    documentation and/or other materials provided with the distribution.
     48  *
     49  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     50  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     51  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     52  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     53  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     54  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     55  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     56  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     57  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     58  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     59  * POSSIBILITY OF SUCH DAMAGE.
     60  */
     61 
     62 /*
     63  * !! HIGHLY EXPERIMENTAL CODE !!
     64  */
     65 
     66 #include <sys/cdefs.h>
     67 __KERNEL_RCSID(0, "$NetBSD: ahci.c,v 1.15 2018/04/09 16:21:10 jakllsch Exp $");
     68 
     69 #include <sys/param.h>
     70 #include <sys/systm.h>
     71 #include <sys/kernel.h>
     72 #include <sys/proc.h>
     73 #include <sys/device.h>
     74 #include <sys/kmem.h>
     75 
     76 #include <sys/bus.h>
     77 #include <machine/cpu.h>
     78 
     79 #include <dev/usb/usb.h>
     80 #include <dev/usb/usbdi.h>
     81 #include <dev/usb/usbdivar.h>
     82 #include <dev/usb/usb_mem.h>
     83 #include <dev/usb/usbdevs.h>
     84 #include <dev/usb/usbroothub.h>
     85 
     86 #include <mips/adm5120/include/adm5120reg.h>
     87 #include <mips/adm5120/include/adm5120var.h>
     88 #include <mips/adm5120/include/adm5120_obiovar.h>
     89 
     90 #include <mips/adm5120/dev/ahcireg.h>
     91 #include <mips/adm5120/dev/ahcivar.h>
     92 
     93 static usbd_status	ahci_open(struct usbd_pipe *);
     94 static void		ahci_softintr(void *);
     95 static void		ahci_poll(struct usbd_bus *);
     96 static void		ahci_poll_hub(void *);
     97 static void		ahci_poll_device(void *arg);
     98 static struct usbd_xfer *
     99 			ahci_allocx(struct usbd_bus *, unsigned int);
    100 static void		ahci_freex(struct usbd_bus *, struct usbd_xfer *);
    101 
    102 static void		ahci_get_lock(struct usbd_bus *, kmutex_t **);
    103 static int		ahci_roothub_ctrl(struct usbd_bus *, usb_device_request_t *,
    104     void *, int);
    105 
    106 static usbd_status	ahci_root_intr_transfer(struct usbd_xfer *);
    107 static usbd_status	ahci_root_intr_start(struct usbd_xfer *);
    108 static void		ahci_root_intr_abort(struct usbd_xfer *);
    109 static void		ahci_root_intr_close(struct usbd_pipe *);
    110 static void		ahci_root_intr_done(struct usbd_xfer *);
    111 
    112 static usbd_status	ahci_device_ctrl_transfer(struct usbd_xfer *);
    113 static usbd_status	ahci_device_ctrl_start(struct usbd_xfer *);
    114 static void		ahci_device_ctrl_abort(struct usbd_xfer *);
    115 static void		ahci_device_ctrl_close(struct usbd_pipe *);
    116 static void		ahci_device_ctrl_done(struct usbd_xfer *);
    117 
    118 static usbd_status	ahci_device_intr_transfer(struct usbd_xfer *);
    119 static usbd_status	ahci_device_intr_start(struct usbd_xfer *);
    120 static void		ahci_device_intr_abort(struct usbd_xfer *);
    121 static void		ahci_device_intr_close(struct usbd_pipe *);
    122 static void		ahci_device_intr_done(struct usbd_xfer *);
    123 
    124 static usbd_status	ahci_device_isoc_transfer(struct usbd_xfer *);
    125 static usbd_status	ahci_device_isoc_start(struct usbd_xfer *);
    126 static void		ahci_device_isoc_abort(struct usbd_xfer *);
    127 static void		ahci_device_isoc_close(struct usbd_pipe *);
    128 static void		ahci_device_isoc_done(struct usbd_xfer *);
    129 
    130 static usbd_status	ahci_device_bulk_transfer(struct usbd_xfer *);
    131 static usbd_status	ahci_device_bulk_start(struct usbd_xfer *);
    132 static void		ahci_device_bulk_abort(struct usbd_xfer *);
    133 static void		ahci_device_bulk_close(struct usbd_pipe *);
    134 static void		ahci_device_bulk_done(struct usbd_xfer *);
    135 
    136 static int		ahci_transaction(struct ahci_softc *,
    137 	struct usbd_pipe *, uint8_t, int, u_char *, uint8_t);
    138 static void		ahci_noop(struct usbd_pipe *);
    139 static void		ahci_abort_xfer(struct usbd_xfer *, usbd_status);
    140 static void		ahci_device_clear_toggle(struct usbd_pipe *);
    141 
    142 extern int usbdebug;
    143 extern int uhubdebug;
    144 extern int umassdebug;
    145 int ahci_dummy;
    146 
    147 #define AHCI_DEBUG
    148 
    149 #ifdef AHCI_DEBUG
    150 #define D_TRACE	(0x0001)	/* function trace */
    151 #define D_MSG	(0x0002)	/* debug messages */
    152 #define D_XFER	(0x0004)	/* transfer messages (noisy!) */
    153 #define D_MEM	(0x0008)	/* memory allocation */
    154 
    155 int ahci_debug = 0;
    156 #define DPRINTF(z,x)	if((ahci_debug&(z))!=0)printf x
    157 void		print_req(usb_device_request_t *);
    158 void		print_req_hub(usb_device_request_t *);
    159 void		print_dumpreg(struct ahci_softc *);
    160 void		print_xfer(struct usbd_xfer *);
    161 #else
    162 #define DPRINTF(z,x)
    163 #endif
    164 
    165 
    166 struct usbd_bus_methods ahci_bus_methods = {
    167 	.ubm_open = ahci_open,
    168 	.ubm_softint = ahci_softintr,
    169 	.ubm_dopoll = ahci_poll,
    170 	.ubm_allocx = ahci_allocx,
    171 	.ubm_freex = ahci_freex,
    172 	.ubm_getlock = ahci_get_lock,
    173 	.ubm_rhctrl = ahci_roothub_ctrl,
    174 };
    175 
    176 struct usbd_pipe_methods ahci_root_intr_methods = {
    177 	.upm_transfer = ahci_root_intr_transfer,
    178 	.upm_start = ahci_root_intr_start,
    179 	.upm_abort = ahci_root_intr_abort,
    180 	.upm_close = ahci_root_intr_close,
    181 	.upm_cleartoggle = ahci_noop,
    182 	.upm_done = ahci_root_intr_done,
    183 };
    184 
    185 struct usbd_pipe_methods ahci_device_ctrl_methods = {
    186 	.upm_transfer = ahci_device_ctrl_transfer,
    187 	.upm_start = ahci_device_ctrl_start,
    188 	.upm_abort = ahci_device_ctrl_abort,
    189 	.upm_close = ahci_device_ctrl_close,
    190 	.upm_cleartoggle = ahci_noop,
    191 	.upm_done = ahci_device_ctrl_done,
    192 };
    193 
    194 struct usbd_pipe_methods ahci_device_intr_methods = {
    195 	.upm_transfer = ahci_device_intr_transfer,
    196 	.upm_start = ahci_device_intr_start,
    197 	.upm_abort = ahci_device_intr_abort,
    198 	.upm_close = ahci_device_intr_close,
    199 	.upm_cleartoggle = ahci_device_clear_toggle,
    200 	.upm_done = ahci_device_intr_done,
    201 };
    202 
    203 struct usbd_pipe_methods ahci_device_isoc_methods = {
    204 	.upm_transfer = ahci_device_isoc_transfer,
    205 	.upm_start = ahci_device_isoc_start,
    206 	.upm_abort = ahci_device_isoc_abort,
    207 	.upm_close = ahci_device_isoc_close,
    208 	.upm_cleartoggle = ahci_noop,
    209 	.upm_done = ahci_device_isoc_done,
    210 };
    211 
    212 struct usbd_pipe_methods ahci_device_bulk_methods = {
    213 	.upm_transfer = ahci_device_bulk_transfer,
    214 	.upm_start = ahci_device_bulk_start,
    215 	.upm_abort = ahci_device_bulk_abort,
    216 	.upm_close = ahci_device_bulk_close,
    217 	.upm_cleartoggle = ahci_device_clear_toggle,
    218 	.upm_done = ahci_device_bulk_done,
    219 };
    220 
    221 struct ahci_pipe {
    222 	struct usbd_pipe pipe;
    223 	uint32_t toggle;
    224 };
    225 
    226 static int	ahci_match(device_t, cfdata_t, void *);
    227 static void	ahci_attach(device_t, device_t, void *);
    228 
    229 CFATTACH_DECL_NEW(ahci, sizeof(struct ahci_softc),
    230     ahci_match, ahci_attach, NULL, NULL);
    231 
    232 static int
    233 ahci_match(device_t parent, struct cfdata *cf, void *aux)
    234 {
    235 	struct obio_attach_args *aa = aux;
    236 
    237 	if (strcmp(aa->oba_name, cf->cf_name) == 0)
    238 		return 1;
    239 
    240 	return 0;
    241 }
    242 
    243 #define	REG_READ(o)	bus_space_read_4(sc->sc_st, sc->sc_ioh, (o))
    244 #define	REG_WRITE(o,v)	bus_space_write_4(sc->sc_st, sc->sc_ioh, (o),(v))
    245 
    246 /*
    247  * Attach SL11H/SL811HS. Return 0 if success.
    248  */
    249 void
    250 ahci_attach(device_t parent, device_t self, void *aux)
    251 {
    252 	struct obio_attach_args *aa = aux;
    253 	struct ahci_softc *sc = device_private(self);
    254 
    255 	printf("\n");
    256 	sc->sc_dmat = aa->oba_dt;
    257 	sc->sc_st = aa->oba_st;
    258 
    259 	/* Initialize sc */
    260 	sc->sc_bus.ub_revision = USBREV_1_1;
    261 	sc->sc_bus.ub_methods = &ahci_bus_methods;
    262 	sc->sc_bus.ub_pipesize = sizeof(struct ahci_pipe);
    263 	sc->sc_bus.ub_dmatag = sc->sc_dmat;
    264 	sc->sc_bus.ub_usedma = true;
    265 
    266 	/* Map the device. */
    267 	if (bus_space_map(sc->sc_st, aa->oba_addr,
    268 	    512, 0, &sc->sc_ioh) != 0) {
    269 		aprint_error_dev(self, "unable to map device\n");
    270 		return;
    271 	}
    272 
    273 	/* Hook up the interrupt handler. */
    274 	sc->sc_ih = adm5120_intr_establish(aa->oba_irq, INTR_IRQ, ahci_intr, sc);
    275 
    276 	if (sc->sc_ih == NULL) {
    277 		aprint_error_dev(self,
    278 		    "unable to register interrupt handler\n");
    279 		return;
    280 	}
    281 
    282 	SIMPLEQ_INIT(&sc->sc_free_xfers);
    283 
    284 	callout_init(&sc->sc_poll_handle, 0);
    285 
    286 	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_SOFTUSB);
    287 	mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_SCHED /* XXXNH */);
    288 
    289 	REG_WRITE(ADMHCD_REG_INTENABLE, 0); /* disable interrupts */
    290 	REG_WRITE(ADMHCD_REG_CONTROL, ADMHCD_SW_RESET); /* reset */
    291 	delay_ms(10);
    292 	while (REG_READ(ADMHCD_REG_CONTROL) & ADMHCD_SW_RESET)
    293 		delay_ms(1);
    294 
    295 	REG_WRITE(ADMHCD_REG_CONTROL, ADMHCD_HOST_EN);
    296 	REG_WRITE(ADMHCD_REG_HOSTHEAD, 0x00000000);
    297 	REG_WRITE(ADMHCD_REG_FMINTERVAL, 0x20002edf);
    298 	REG_WRITE(ADMHCD_REG_LSTHRESH, 0x628);
    299 	REG_WRITE(ADMHCD_REG_RHDESCR, ADMHCD_NPS | ADMHCD_LPSC);
    300 	REG_WRITE(ADMHCD_REG_HOSTCONTROL, ADMHCD_STATE_OP);
    301 
    302 	REG_WRITE(ADMHCD_REG_INTENABLE, 0); /* XXX: enable interrupts */
    303 
    304 #ifdef USB_DEBUG
    305 	/* usbdebug = 0x7f;
    306 	uhubdebug = 0x7f;
    307 	umassdebug = 0xffffffff; */
    308 #endif
    309 
    310 	/* Attach USB devices */
    311 	sc->sc_child = config_found(self, &sc->sc_bus, usbctlprint);
    312 
    313 }
    314 
    315 int
    316 ahci_intr(void *arg)
    317 {
    318 #if 0
    319 	struct ahci_softc *sc = arg;
    320 	uint8_t r;
    321 #ifdef AHCI_DEBUG
    322 	char bitbuf[256];
    323 #endif
    324 
    325 	r = sl11read(sc, SL11_ISR);
    326 
    327 	sl11write(sc, SL11_ISR, SL11_ISR_DATA | SL11_ISR_SOFTIMER);
    328 
    329 	if ((r & SL11_ISR_RESET)) {
    330 		sc->sc_flags |= AHCDF_RESET;
    331 		sl11write(sc, SL11_ISR, SL11_ISR_RESET);
    332 	}
    333 	if ((r & SL11_ISR_INSERT)) {
    334 		sc->sc_flags |= AHCDF_INSERT;
    335 		sl11write(sc, SL11_ISR, SL11_ISR_INSERT);
    336 	}
    337 
    338 #ifdef AHCI_DEBUG
    339 	snprintb(bitbuf, sizeof(bitbuf),
    340 	    ((sl11read(sc, SL11_CTRL) & SL11_CTRL_SUSPEND)
    341 	    ? "\20\x8""D+\7RESUME\6INSERT\5SOF\4res\3""BABBLE\2USBB\1USBA"
    342 	    : "\20\x8""D+\7RESET\6INSERT\5SOF\4res\3""BABBLE\2USBB\1USBA"),
    343 	    r);
    344 
    345 	DPRINTF(D_XFER, ("I=%s ", bitbuf));
    346 #endif /* AHCI_DEBUG */
    347 #endif
    348 
    349 	return 0;
    350 }
    351 
    352 usbd_status
    353 ahci_open(struct usbd_pipe *pipe)
    354 {
    355 	struct usbd_device *dev = pipe->up_dev;
    356 	struct ahci_pipe *apipe = (struct ahci_pipe *)pipe;
    357 	usb_endpoint_descriptor_t *ed = pipe->up_endpoint->ue_edesc;
    358 	uint8_t rhaddr = dev->ud_bus->ub_rhaddr;
    359 
    360 	DPRINTF(D_TRACE, ("ahci_open(addr=%d,ep=%d,scaddr=%d)",
    361 		dev->ud_addr, ed->bEndpointAddress, rhaddr));
    362 
    363 	apipe->toggle=0;
    364 
    365 	if (dev->ud_addr == rhaddr) {
    366 		switch (ed->bEndpointAddress) {
    367 		case USB_CONTROL_ENDPOINT:
    368 			pipe->up_methods = &roothub_ctrl_methods;
    369 			break;
    370 		case UE_DIR_IN | USBROOTHUB_INTR_ENDPT:
    371 			pipe->up_methods = &ahci_root_intr_methods;
    372 			break;
    373 		default:
    374 			printf("open:endpointErr!\n");
    375 			return USBD_INVAL;
    376 		}
    377 	} else {
    378 		switch (ed->bmAttributes & UE_XFERTYPE) {
    379 		case UE_CONTROL:
    380 			DPRINTF(D_MSG, ("control "));
    381 			pipe->up_methods = &ahci_device_ctrl_methods;
    382 			break;
    383 		case UE_INTERRUPT:
    384 			DPRINTF(D_MSG, ("interrupt "));
    385 			pipe->up_methods = &ahci_device_intr_methods;
    386 			break;
    387 		case UE_ISOCHRONOUS:
    388 			DPRINTF(D_MSG, ("isochronous "));
    389 			pipe->up_methods = &ahci_device_isoc_methods;
    390 			break;
    391 		case UE_BULK:
    392 			DPRINTF(D_MSG, ("bluk "));
    393 			pipe->up_methods = &ahci_device_bulk_methods;
    394 			break;
    395 		}
    396 	}
    397 	return USBD_NORMAL_COMPLETION;
    398 }
    399 
    400 void
    401 ahci_softintr(void *arg)
    402 {
    403 	DPRINTF(D_TRACE, ("%s()", __func__));
    404 }
    405 
    406 void
    407 ahci_poll(struct usbd_bus *bus)
    408 {
    409 	DPRINTF(D_TRACE, ("%s()", __func__));
    410 }
    411 
    412 #define AHCI_BUS2SC(bus)	((bus)->ub_hcpriv)
    413 #define AHCI_PIPE2SC(pipe)	AHCI_BUS2SC((pipe)->up_dev->ud_bus)
    414 #define AHCI_XFER2SC(xfer)	AHCI_BUS2SC((xfer)->ux_bus)
    415 #define AHCI_APIPE2SC(ap)	AHCI_BUS2SC((d)->pipe.up_dev->ud_bus)
    416 
    417 /*
    418  * Emulation of interrupt transfer for status change endpoint
    419  * of root hub.
    420  */
    421 void
    422 ahci_poll_hub(void *arg)
    423 {
    424 	struct usbd_xfer *xfer = arg;
    425 	struct ahci_softc *sc = AHCI_XFER2SC(xfer);
    426 	u_char *p;
    427 	static int p0_state=0;
    428 	static int p1_state=0;
    429 
    430 	callout_reset(&sc->sc_poll_handle, sc->sc_interval, ahci_poll_hub, xfer);
    431 
    432 	/* USB spec 11.13.3 (p.260) */
    433 	p = KERNADDR(&xfer->ux_dmabuf, 0);
    434 	p[0] = 0;
    435 	if ((REG_READ(ADMHCD_REG_PORTSTATUS0) & ADMHCD_CCS) != p0_state) {
    436 		p[0] = 2;
    437 		DPRINTF(D_TRACE, ("!"));
    438 		p0_state=(REG_READ(ADMHCD_REG_PORTSTATUS0) & ADMHCD_CCS);
    439 	};
    440 	if ((REG_READ(ADMHCD_REG_PORTSTATUS1) & ADMHCD_CCS) != p1_state) {
    441 		p[0] = 2;
    442 		DPRINTF(D_TRACE, ("@"));
    443 		p1_state=(REG_READ(ADMHCD_REG_PORTSTATUS1) & ADMHCD_CCS);
    444 	};
    445 
    446 	/* no change, return NAK */
    447 	if (p[0] == 0)
    448 		return;
    449 
    450 	xfer->ux_actlen = 1;
    451 	xfer->ux_status = USBD_NORMAL_COMPLETION;
    452 	mutex_enter(&sc->sc_lock);
    453 	usb_transfer_complete(xfer);
    454 	mutex_exit(&sc->sc_lock);
    455 }
    456 
    457 struct usbd_xfer *
    458 ahci_allocx(struct usbd_bus *bus, unsigned int nframes)
    459 {
    460 	struct ahci_softc *sc = AHCI_BUS2SC(bus);
    461 	struct usbd_xfer *xfer;
    462 
    463 	DPRINTF(D_MEM, ("SLallocx"));
    464 
    465 	xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers);
    466 	if (xfer) {
    467 		SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, ux_next);
    468 #ifdef DIAGNOSTIC
    469 		if (xfer->ux_state != XFER_FREE) {
    470 			printf("ahci_allocx: xfer=%p not free, 0x%08x\n",
    471 				xfer, xfer->ux_state);
    472 		}
    473 #endif
    474 	} else {
    475 		xfer = kmem_alloc(sizeof(*xfer), KM_SLEEP);
    476 	}
    477 
    478 	memset(xfer, 0, sizeof(*xfer));
    479 #ifdef DIAGNOSTIC
    480 	xfer->ux_state = XFER_BUSY;
    481 #endif
    482 
    483 	return xfer;
    484 }
    485 
    486 void
    487 ahci_freex(struct usbd_bus *bus, struct usbd_xfer *xfer)
    488 {
    489 	struct ahci_softc *sc = AHCI_BUS2SC(bus);
    490 
    491 	DPRINTF(D_MEM, ("SLfreex"));
    492 
    493 #ifdef DIAGNOSTIC
    494 	if (xfer->ux_state != XFER_BUSY) {
    495 		printf("ahci_freex: xfer=%p not busy, 0x%08x\n",
    496 			xfer, xfer->ux_state);
    497 		return;
    498 	}
    499 	xfer->ux_state = XFER_FREE;
    500 #endif
    501 	SIMPLEQ_INSERT_HEAD(&sc->sc_free_xfers, xfer, ux_next);
    502 }
    503 
    504 static void
    505 ahci_get_lock(struct usbd_bus *bus, kmutex_t **lock)
    506 {
    507 	struct ahci_softc *sc = AHCI_BUS2SC(bus);
    508 
    509 	*lock = &sc->sc_lock;
    510 }
    511 
    512 void
    513 ahci_noop(struct usbd_pipe *pipe)
    514 {
    515 	DPRINTF(D_TRACE, ("%s()", __func__));
    516 }
    517 
    518 /*
    519  * Data structures and routines to emulate the root hub.
    520  */
    521 
    522 static int
    523 ahci_roothub_ctrl(struct usbd_bus *bus, usb_device_request_t *req,
    524     void *buf, int buflen)
    525 {
    526 	struct ahci_softc *sc = AHCI_BUS2SC(bus);
    527 	uint16_t len, value, index;
    528 	usb_port_status_t ps;
    529 	int totlen = 0;
    530 	int status;
    531 
    532 	DPRINTF(D_TRACE, ("SLRCstart "));
    533 
    534 	len = UGETW(req->wLength);
    535 	value = UGETW(req->wValue);
    536 	index = UGETW(req->wIndex);
    537 
    538 #define C(x,y) ((x) | ((y) << 8))
    539 	switch (C(req->bRequest, req->bmRequestType)) {
    540 	case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE):
    541 		switch (value) {
    542 #define sd ((usb_string_descriptor_t *)buf)
    543 		case C(2, UDESC_STRING):
    544 			/* Product */
    545 			totlen = usb_makestrdesc(sd, len, "ADM5120 root hub");
    546 			break;
    547 		default:
    548 			printf("unknownGetDescriptor=%x", value);
    549 			/* FALLTHROUGH */
    550 		case C(0, UDESC_DEVICE):
    551 		case C(1, UDESC_STRING):
    552 			/* default from usbroothub */
    553 			return buflen;
    554 		}
    555 		break;
    556 	/*
    557 	 * Hub specific requests
    558 	 */
    559 	case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE):
    560 		/* Clear Hub Feature, 11.16.2.1, not supported */
    561 		DPRINTF(D_MSG, ("ClearHubFeature not supported\n"));
    562 		break;
    563 	case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER):
    564 
    565 #define WPS(x) REG_WRITE(ADMHCD_REG_PORTSTATUS0+(index-1)*4, (x))
    566 		/* Clear Port Feature, 11.16.2.2 */
    567 		if (index != 1 && index != 2 ) {
    568 			return -1;
    569 		}
    570 		switch (value) {
    571 		case UHF_PORT_POWER:
    572 			DPRINTF(D_MSG, ("POWER_OFF "));
    573 			WPS(ADMHCD_LSDA);
    574 			break;
    575 		case UHF_PORT_SUSPEND:
    576 			DPRINTF(D_MSG, ("SUSPEND "));
    577 			WPS(ADMHCD_POCI);
    578 			break;
    579 		case UHF_PORT_ENABLE:
    580 			DPRINTF(D_MSG, ("ENABLE "));
    581 			WPS(ADMHCD_CCS);
    582 			break;
    583 		case UHF_C_PORT_CONNECTION:
    584 			WPS(ADMHCD_CSC);
    585 			break;
    586 		case UHF_C_PORT_RESET:
    587 			WPS(ADMHCD_PRSC);
    588 			break;
    589 		case UHF_C_PORT_SUSPEND:
    590 			WPS(ADMHCD_PSSC);
    591 			break;
    592 		case UHF_C_PORT_ENABLE:
    593 			WPS(ADMHCD_PESC);
    594 			break;
    595 		case UHF_C_PORT_OVER_CURRENT:
    596 			WPS(ADMHCD_OCIC);
    597 			break;
    598 		default:
    599 			printf("ClrPortFeatERR:value=0x%x ", value);
    600 			return -1;
    601 		}
    602 		//DPRINTF(D_XFER, ("CH=%04x ", sc->sc_change));
    603 #undef WPS
    604 		break;
    605 	case C(UR_GET_BUS_STATE, UT_READ_CLASS_OTHER):
    606 		/* Get Bus State, 11.16.2.3, not supported */
    607 		/* shall return a STALL... */
    608 		break;
    609 	case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE):
    610 		/* Get Hub Descriptor, 11.16.2.4 */
    611 		DPRINTF(D_MSG, ("UR_GET_DESCRIPTOR RCD"));
    612 		if ((value&0xff) != 0) {
    613 			return -1;
    614 		}
    615 		usb_hub_descriptor_t hubd;
    616 
    617 		totlen = min(buflen, sizeof(hubd));
    618 		memcpy(&hubd, buf, totlen);
    619 		hubd.bNbrPorts = 2;
    620 		USETW(hubd.wHubCharacteristics, 0);
    621 		hubd.bPwrOn2PwrGood = 0;
    622 		memcpy(buf, &hubd, totlen);
    623 		break;
    624 	case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE):
    625 		/* Get Hub Status, 11.16.2.5 */
    626 		DPRINTF(D_MSG, ("UR_GET_STATUS RCD"));
    627 		if (len != 4) {
    628 			return -1;
    629 		}
    630 		memset(buf, 0, len);
    631 		totlen = len;
    632 		break;
    633 	case C(UR_GET_STATUS, UT_READ_CLASS_OTHER):
    634 		/* Get Port Status, 11.16.2.6 */
    635 		if ((index != 1 && index != 2)  || len != 4) {
    636 			printf("index=%d,len=%d ", index, len);
    637 			return -1;
    638 		}
    639 		status = REG_READ(ADMHCD_REG_PORTSTATUS0+(index-1)*4);
    640 		DPRINTF(D_MSG, ("UR_GET_STATUS RCO=%x ", status));
    641 
    642 		//DPRINTF(D_XFER, ("ST=%04x,CH=%04x ", status, sc->sc_change));
    643 		USETW(ps.wPortStatus, status  & (UPS_CURRENT_CONNECT_STATUS|UPS_PORT_ENABLED|UPS_SUSPEND|UPS_OVERCURRENT_INDICATOR|UPS_RESET|UPS_PORT_POWER|UPS_LOW_SPEED));
    644 		USETW(ps.wPortChange, (status>>16) & (UPS_C_CONNECT_STATUS|UPS_C_PORT_ENABLED|UPS_C_SUSPEND|UPS_C_OVERCURRENT_INDICATOR|UPS_C_PORT_RESET));
    645 		totlen = min(len, sizeof(ps));
    646 		memcpy(buf, &ps, totlen);
    647 		break;
    648 	case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE):
    649 		/* Set Hub Descriptor, 11.16.2.7, not supported */
    650 		/* STALL ? */
    651 		return -1;
    652 	case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE):
    653 		/* Set Hub Feature, 11.16.2.8, not supported */
    654 		break;
    655 	case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER):
    656 #define WPS(x) REG_WRITE(ADMHCD_REG_PORTSTATUS0+(index-1)*4, (x))
    657 		/* Set Port Feature, 11.16.2.9 */
    658 		if ((index != 1) && (index !=2)) {
    659 			printf("index=%d ", index);
    660 			return -1;
    661 		}
    662 		switch (value) {
    663 		case UHF_PORT_RESET:
    664 			DPRINTF(D_MSG, ("PORT_RESET "));
    665 			WPS(ADMHCD_PRS);
    666 			break;
    667 		case UHF_PORT_POWER:
    668 			DPRINTF(D_MSG, ("PORT_POWER "));
    669 			WPS(ADMHCD_PPS);
    670 			break;
    671 		case UHF_PORT_ENABLE:
    672 			DPRINTF(D_MSG, ("PORT_ENABLE "));
    673 			WPS(ADMHCD_PES);
    674 			break;
    675 		default:
    676 			printf("SetPortFeatERR=0x%x ", value);
    677 			return -1;
    678 		}
    679 #undef WPS
    680 		break;
    681 	default:
    682 		DPRINTF(D_MSG, ("ioerr(UR=%02x,UT=%02x) ",
    683 			req->bRequest, req->bmRequestType));
    684 		/* default from usbroothub */
    685 		return buflen;
    686 	}
    687 
    688 	return totlen;
    689 }
    690 
    691 static usbd_status
    692 ahci_root_intr_transfer(struct usbd_xfer *xfer)
    693 {
    694 	struct ahci_softc *sc = AHCI_XFER2SC(xfer);
    695 	usbd_status error;
    696 
    697 	DPRINTF(D_TRACE, ("SLRItransfer "));
    698 
    699 	/* Insert last in queue */
    700 	mutex_enter(&sc->sc_lock);
    701 	error = usb_insert_transfer(xfer);
    702 	mutex_exit(&sc->sc_lock);
    703 	if (error)
    704 		return error;
    705 
    706 	/*
    707 	 * Pipe isn't running (otherwise error would be USBD_INPROG),
    708 	 * start first.
    709 	 */
    710 	return ahci_root_intr_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue));
    711 }
    712 
    713 static usbd_status
    714 ahci_root_intr_start(struct usbd_xfer *xfer)
    715 {
    716 	struct ahci_softc *sc = AHCI_XFER2SC(xfer);
    717 
    718 	DPRINTF(D_TRACE, ("SLRIstart "));
    719 
    720 	sc->sc_interval = MS_TO_TICKS(xfer->ux_pipe->up_endpoint->ue_edesc->bInterval);
    721 	callout_reset(&sc->sc_poll_handle, sc->sc_interval, ahci_poll_hub, xfer);
    722 	sc->sc_intr_xfer = xfer;
    723 	return USBD_IN_PROGRESS;
    724 }
    725 
    726 static void
    727 ahci_root_intr_abort(struct usbd_xfer *xfer)
    728 {
    729 	DPRINTF(D_TRACE, ("SLRIabort "));
    730 }
    731 
    732 static void
    733 ahci_root_intr_close(struct usbd_pipe *pipe)
    734 {
    735 	struct ahci_softc *sc = AHCI_PIPE2SC(pipe);
    736 
    737 	DPRINTF(D_TRACE, ("SLRIclose "));
    738 
    739 	callout_stop(&sc->sc_poll_handle);
    740 	sc->sc_intr_xfer = NULL;
    741 }
    742 
    743 static void
    744 ahci_root_intr_done(struct usbd_xfer *xfer)
    745 {
    746 	//DPRINTF(D_XFER, ("RIdn "));
    747 }
    748 
    749 static usbd_status
    750 ahci_device_ctrl_transfer(struct usbd_xfer *xfer)
    751 {
    752 	struct ahci_softc *sc = AHCI_XFER2SC(xfer);
    753 	usbd_status error;
    754 
    755 	DPRINTF(D_TRACE, ("C"));
    756 
    757 	mutex_enter(&sc->sc_lock);
    758 	error = usb_insert_transfer(xfer);
    759 	mutex_exit(&sc->sc_lock);
    760 	if (error)
    761 		return error;
    762 
    763 	return ahci_device_ctrl_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue));
    764 }
    765 
    766 static usbd_status
    767 ahci_device_ctrl_start(struct usbd_xfer *xfer)
    768 {
    769 	usbd_status status =  USBD_NORMAL_COMPLETION;
    770 	int s, err;
    771 	static struct admhcd_ed ep_v __attribute__((aligned(16))), *ep;
    772 	static struct admhcd_td td_v[4] __attribute__((aligned(16))), *td, *td1, *td2, *td3;
    773 	static usb_dma_t reqdma;
    774 	struct usbd_pipe *pipe = xfer->ux_pipe;
    775 	usb_device_request_t *req = &xfer->ux_request;
    776 	struct ahci_softc *sc = AHCI_XFER2SC(xfer);
    777 	int len, isread;
    778 
    779 
    780 #if 0
    781 	struct ahci_pipe *apipe = (struct ahci_pipe *)xfer->ux_pipe;
    782 #endif
    783 	mutex_enter(&sc->sc_lock);
    784 /*	printf("ctrl_start>>>\n"); */
    785 
    786 #ifdef DIAGNOSTIC
    787 	if (!(xfer->ux_rqflags & URQ_REQUEST)) {
    788 		/* XXX panic */
    789 		printf("ahci_device_ctrl_transfer: not a request\n");
    790 		return USBD_INVAL;
    791 	}
    792 #endif
    793 
    794 #define KSEG1ADDR(x) (0xa0000000 | (((uint32_t)x) & 0x1fffffff))
    795 	DPRINTF(D_TRACE, ("st "));
    796 	if (!ep) {
    797 		ep = (struct admhcd_ed *)KSEG1ADDR(&ep_v);
    798 		td = (struct admhcd_td *)KSEG1ADDR(&td_v[0]);
    799 		td1 = (struct admhcd_td *)KSEG1ADDR(&td_v[1]);
    800 		td2 = (struct admhcd_td *)KSEG1ADDR(&td_v[2]);
    801 		td3 = (struct admhcd_td *)KSEG1ADDR(&td_v[3]);
    802 		err = usb_allocmem(&sc->sc_bus,
    803 			sizeof(usb_device_request_t),
    804 			0, &reqdma);
    805 		if (err)
    806 			return USBD_NOMEM;
    807 
    808 		/* printf("ep: %p\n",ep); */
    809 	};
    810 
    811 	ep->control =  pipe->up_dev->ud_addr | \
    812 		((pipe->up_dev->ud_speed==USB_SPEED_FULL)?ADMHCD_ED_SPEED:0) | \
    813 		((UGETW(pipe->up_endpoint->ue_edesc->wMaxPacketSize))<<ADMHCD_ED_MAXSHIFT);
    814 	memcpy(KERNADDR(&reqdma, 0), req, sizeof *req);
    815 /* 	printf("status: %x\n",REG_READ(ADMHCD_REG_PORTSTATUS0));
    816 	printf("ep_control: %x\n",ep->control);
    817 	printf("speed: %x\n",pipe->up_dev->ud_speed);
    818 	printf("req: %p\n",req);
    819 	printf("dmabuf: %p\n",xfer->ux_dmabuf.block); */
    820 
    821 	isread = req->bmRequestType & UT_READ;
    822 	len = UGETW(req->wLength);
    823 
    824 	ep->next = ep;
    825 
    826 	td->buffer = DMAADDR(&reqdma,0) | 0xa0000000;
    827 	td->buflen=sizeof(*req);
    828 	td->control=ADMHCD_TD_SETUP | ADMHCD_TD_DATA0 | ADMHCD_TD_OWN;
    829 
    830 	if (len) {
    831 		td->next = td1;
    832 
    833 		td1->buffer = DMAADDR(&xfer->ux_dmabuf,0) | 0xa0000000;
    834 		td1->buflen = len;
    835 		td1->next = td2;
    836 		td1->control= (isread?ADMHCD_TD_IN:ADMHCD_TD_OUT) | ADMHCD_TD_DATA1 | ADMHCD_TD_R | ADMHCD_TD_OWN;
    837 	} else {
    838 		td1->control = 0;
    839 		td->next = td2;
    840 	};
    841 
    842 	td2->buffer = 0;
    843 	td2->buflen= 0;
    844 	td2->next = td3;
    845 	td2->control = (isread?ADMHCD_TD_OUT:ADMHCD_TD_IN) | ADMHCD_TD_DATA1 | ADMHCD_TD_OWN;
    846 
    847 	td3->buffer = 0;
    848 	td3->buflen= 0;
    849 	td3->next = 0;
    850 	td3->control = 0;
    851 
    852 	ep->head = td;
    853 	ep->tail = td3;
    854 /*
    855 	printf("ep: %p\n",ep);
    856 	printf("ep->next: %p\n",ep->next);
    857 	printf("ep->head: %p\n",ep->head);
    858 	printf("ep->tail: %p\n",ep->tail);
    859 	printf("td: %p\n",td);
    860 	printf("td->next: %p\n",td->next);
    861 	printf("td->buffer: %x\n",td->buffer);
    862 	printf("td->buflen: %x\n",td->buflen);
    863 	printf("td1: %p\n",td1);
    864 	printf("td1->next: %p\n",td1->next);
    865 	printf("td2: %p\n",td2);
    866 	printf("td2->next: %p\n",td2->next);
    867 	printf("td3: %p\n",td3);
    868 	printf("td3->next: %p\n",td3->next);
    869 */
    870 
    871 	REG_WRITE(ADMHCD_REG_HOSTHEAD, (uint32_t)ep);
    872 	REG_WRITE(ADMHCD_REG_HOSTCONTROL, ADMHCD_STATE_OP | ADMHCD_DMA_EN);
    873 /*	printf("1: %x %x %x %x\n", ep->control, td->control, td1->control, td2->control); */
    874 	s=100;
    875 	while (s--) {
    876 		delay_ms(10);
    877 /*                printf("%x %x %x %x\n", ep->control, td->control, td1->control, td2->control);*/
    878 		status = USBD_TIMEOUT;
    879 		if (td->control & ADMHCD_TD_OWN) continue;
    880 
    881 		err = (td->control & ADMHCD_TD_ERRMASK)>>ADMHCD_TD_ERRSHIFT;
    882 		if (err) {
    883 			status = USBD_IOERROR;
    884 			break;
    885 		};
    886 
    887 		status = USBD_TIMEOUT;
    888 		if (td1->control & ADMHCD_TD_OWN) continue;
    889 		err = (td1->control & ADMHCD_TD_ERRMASK)>>ADMHCD_TD_ERRSHIFT;
    890 		if (err) {
    891 			status = USBD_IOERROR;
    892 			break;
    893 		};
    894 
    895 		status = USBD_TIMEOUT;
    896 		if (td2->control & ADMHCD_TD_OWN) continue;
    897 		err = (td2->control & ADMHCD_TD_ERRMASK)>>ADMHCD_TD_ERRSHIFT;
    898 		if (err) {
    899 			status = USBD_IOERROR;
    900 		};
    901 		status = USBD_NORMAL_COMPLETION;
    902 		break;
    903 
    904 	};
    905 	REG_WRITE(ADMHCD_REG_HOSTCONTROL, ADMHCD_STATE_OP);
    906 
    907 	xfer->ux_actlen = len;
    908 	xfer->ux_status = status;
    909 
    910 /* 	printf("ctrl_start<<<\n"); */
    911 
    912 	usb_transfer_complete(xfer);
    913 	mutex_exit(&sc->sc_lock);
    914 	return USBD_NORMAL_COMPLETION;
    915 }
    916 
    917 static void
    918 ahci_device_ctrl_abort(struct usbd_xfer *xfer)
    919 {
    920 	DPRINTF(D_TRACE, ("Cab "));
    921 	ahci_abort_xfer(xfer, USBD_CANCELLED);
    922 }
    923 
    924 static void
    925 ahci_device_ctrl_close(struct usbd_pipe *pipe)
    926 {
    927 	DPRINTF(D_TRACE, ("Ccl "));
    928 }
    929 
    930 static void
    931 ahci_device_ctrl_done(struct usbd_xfer *xfer)
    932 {
    933 	DPRINTF(D_TRACE, ("Cdn "));
    934 }
    935 
    936 static usbd_status
    937 ahci_device_intr_transfer(struct usbd_xfer *xfer)
    938 {
    939 	struct ahci_softc *sc = AHCI_XFER2SC(xfer);
    940 	usbd_status error;
    941 
    942 	DPRINTF(D_TRACE, ("INTRtrans "));
    943 
    944 	mutex_enter(&sc->sc_lock);
    945 	error = usb_insert_transfer(xfer);
    946 	mutex_exit(&sc->sc_lock);
    947 	if (error)
    948 		return error;
    949 
    950 	return ahci_device_intr_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue));
    951 }
    952 
    953 static usbd_status
    954 ahci_device_intr_start(struct usbd_xfer *xfer)
    955 {
    956 	struct usbd_pipe *pipe = xfer->ux_pipe;
    957 	struct ahci_xfer *sx;
    958 
    959 	DPRINTF(D_TRACE, ("INTRstart "));
    960 
    961 	sx = kmem_intr_alloc(sizeof(*sx), KM_NOSLEEP);
    962 	if (sx == NULL)
    963 		goto reterr;
    964 	memset(sx, 0, sizeof(*sx));
    965 	sx->sx_xfer = xfer;
    966 	xfer->ux_hcpriv = sx;
    967 
    968 	/* initialize callout */
    969 	callout_init(&sx->sx_callout_t, 0);
    970 	callout_reset(&sx->sx_callout_t,
    971 		MS_TO_TICKS(pipe->up_endpoint->ue_edesc->bInterval),
    972 		ahci_poll_device, sx);
    973 
    974 	/* ACK */
    975 	return USBD_IN_PROGRESS;
    976 
    977  reterr:
    978 	return USBD_IOERROR;
    979 }
    980 
    981 static void
    982 ahci_poll_device(void *arg)
    983 {
    984 	struct ahci_xfer *sx = (struct ahci_xfer *)arg;
    985 	struct usbd_xfer *xfer = sx->sx_xfer;
    986 	struct usbd_pipe *pipe = xfer->ux_pipe;
    987 	struct ahci_softc *sc = AHCI_XFER2SC(xfer);
    988 	void *buf;
    989 	int pid;
    990 	int r;
    991 
    992 	DPRINTF(D_TRACE, ("pldev"));
    993 
    994 	callout_reset(&sx->sx_callout_t,
    995 		MS_TO_TICKS(pipe->up_endpoint->ue_edesc->bInterval),
    996 		ahci_poll_device, sx);
    997 
    998 	/* interrupt transfer */
    999 	pid = (UE_GET_DIR(pipe->up_endpoint->ue_edesc->bEndpointAddress) == UE_DIR_IN)
   1000 	    ? ADMHCD_TD_IN : ADMHCD_TD_OUT;
   1001 	buf = KERNADDR(&xfer->ux_dmabuf, 0);
   1002 
   1003 	r = ahci_transaction(sc, pipe, pid, xfer->ux_length, buf, 0/*toggle*/);
   1004 	if (r < 0) {
   1005 		DPRINTF(D_MSG, ("%s error", __func__));
   1006 		return;
   1007 	}
   1008 	/* no change, return NAK */
   1009 	if (r == 0)
   1010 		return;
   1011 
   1012 	xfer->ux_status = USBD_NORMAL_COMPLETION;
   1013 	mutex_enter(&sc->sc_lock);
   1014 	usb_transfer_complete(xfer);
   1015 	mutex_exit(&sc->sc_lock);
   1016 }
   1017 
   1018 static void
   1019 ahci_device_intr_abort(struct usbd_xfer *xfer)
   1020 {
   1021 	struct ahci_xfer *sx;
   1022 
   1023 	DPRINTF(D_TRACE, ("INTRabort "));
   1024 
   1025 	sx = xfer->ux_hcpriv;
   1026 	if (sx) {
   1027 		callout_stop(&sx->sx_callout_t);
   1028 		kmem_intr_free(sx, sizeof(*sx));
   1029 		xfer->ux_hcpriv = NULL;
   1030 	} else {
   1031 		printf("%s: sx == NULL!\n", __func__);
   1032 	}
   1033 	ahci_abort_xfer(xfer, USBD_CANCELLED);
   1034 }
   1035 
   1036 static void
   1037 ahci_device_intr_close(struct usbd_pipe *pipe)
   1038 {
   1039 	DPRINTF(D_TRACE, ("INTRclose "));
   1040 }
   1041 
   1042 static void
   1043 ahci_device_intr_done(struct usbd_xfer *xfer)
   1044 {
   1045 	DPRINTF(D_TRACE, ("INTRdone "));
   1046 }
   1047 
   1048 static usbd_status
   1049 ahci_device_isoc_transfer(struct usbd_xfer *xfer)
   1050 {
   1051 	DPRINTF(D_TRACE, ("S"));
   1052 	return USBD_NORMAL_COMPLETION;
   1053 }
   1054 
   1055 static usbd_status
   1056 ahci_device_isoc_start(struct usbd_xfer *xfer)
   1057 {
   1058 	DPRINTF(D_TRACE, ("st "));
   1059 	return USBD_NORMAL_COMPLETION;
   1060 }
   1061 
   1062 static void
   1063 ahci_device_isoc_abort(struct usbd_xfer *xfer)
   1064 {
   1065 	DPRINTF(D_TRACE, ("Sab "));
   1066 }
   1067 
   1068 static void
   1069 ahci_device_isoc_close(struct usbd_pipe *pipe)
   1070 {
   1071 	DPRINTF(D_TRACE, ("Scl "));
   1072 }
   1073 
   1074 static void
   1075 ahci_device_isoc_done(struct usbd_xfer *xfer)
   1076 {
   1077 	DPRINTF(D_TRACE, ("Sdn "));
   1078 }
   1079 
   1080 static usbd_status
   1081 ahci_device_bulk_transfer(struct usbd_xfer *xfer)
   1082 {
   1083 	struct ahci_softc *sc = AHCI_XFER2SC(xfer);
   1084 	usbd_status error;
   1085 
   1086 	DPRINTF(D_TRACE, ("B"));
   1087 
   1088 	mutex_enter(&sc->sc_lock);
   1089 	error = usb_insert_transfer(xfer);
   1090 	mutex_exit(&sc->sc_lock);
   1091 	if (error)
   1092 		return error;
   1093 
   1094 	return ahci_device_bulk_start(SIMPLEQ_FIRST(&xfer->ux_pipe->up_queue));
   1095 }
   1096 
   1097 static usbd_status
   1098 ahci_device_bulk_start(struct usbd_xfer *xfer)
   1099 {
   1100 #define NBULK_TDS 32
   1101 	static volatile int level = 0;
   1102 	usbd_status status =  USBD_NORMAL_COMPLETION;
   1103 	int s, err;
   1104 	static struct admhcd_ed ep_v __attribute__((aligned(16))), *ep;
   1105 	static struct admhcd_td td_v[NBULK_TDS] __attribute__((aligned(16))), *td[NBULK_TDS];
   1106 	struct usbd_pipe *pipe = xfer->ux_pipe;
   1107 	struct ahci_softc *sc = AHCI_XFER2SC(xfer);
   1108 	int endpt, i, len, tlen, segs, offset, isread, toggle, short_ok;
   1109 	struct ahci_pipe *apipe = (struct ahci_pipe *)xfer->ux_pipe;
   1110 
   1111 #define KSEG1ADDR(x) (0xa0000000 | (((uint32_t)x) & 0x1fffffff))
   1112 	DPRINTF(D_TRACE, ("st "));
   1113 
   1114 #ifdef DIAGNOSTIC
   1115 	if (xfer->ux_rqflags & URQ_REQUEST) {
   1116 		/* XXX panic */
   1117 		printf("ohci_device_bulk_start: a request\n");
   1118 		return USBD_INVAL;
   1119 	}
   1120 #endif
   1121 
   1122 	mutex_enter(&sc->sc_lock);
   1123 	level++;
   1124 /* 	printf("bulk_start>>>\n"); */
   1125 
   1126 	if (!ep) {
   1127 		ep = (struct admhcd_ed *)KSEG1ADDR(&ep_v);
   1128 		for (i=0; i<NBULK_TDS; i++) {
   1129 			td[i] = (struct admhcd_td *)KSEG1ADDR(&td_v[i]);
   1130 		};
   1131 /*		printf("ep: %p\n",ep);*/
   1132 	};
   1133 	if (apipe->toggle == 0) {
   1134 		toggle = ADMHCD_TD_DATA0;
   1135 	} else {
   1136 		toggle = apipe->toggle;
   1137 	};
   1138 
   1139 	endpt = pipe->up_endpoint->ue_edesc->bEndpointAddress;
   1140 	ep->control = pipe->up_dev->ud_addr | ((endpt & 0xf) << ADMHCD_ED_EPSHIFT)|\
   1141 		((pipe->up_dev->ud_speed==USB_SPEED_FULL)?ADMHCD_ED_SPEED:0) | \
   1142 		((UGETW(pipe->up_endpoint->ue_edesc->wMaxPacketSize))<<ADMHCD_ED_MAXSHIFT);
   1143 
   1144 	short_ok = xfer->ux_flags & USBD_SHORT_XFER_OK?ADMHCD_TD_R:0;
   1145 /*	printf("level: %d\n",level);
   1146 	printf("short_xfer: %x\n",short_ok);
   1147 	printf("ep_control: %x\n",ep->control);
   1148 	printf("speed: %x\n",pipe->up_dev->ud_speed);
   1149 	printf("dmabuf: %p\n",xfer->ux_dmabuf.block); */
   1150 
   1151 	isread = UE_GET_DIR(endpt) == UE_DIR_IN;
   1152 	len = xfer->ux_length;
   1153 
   1154 	ep->next = ep;
   1155 
   1156 	i = 0;
   1157 	offset = 0;
   1158 	while ((len>0) || (i==0)) {
   1159 		tlen = min(len,4096);
   1160 		td[i]->buffer = DMAADDR(&xfer->ux_dmabuf,offset) | 0xa0000000;
   1161 		td[i]->buflen=tlen;
   1162 		td[i]->control=(isread?ADMHCD_TD_IN:ADMHCD_TD_OUT) | toggle | ADMHCD_TD_OWN | short_ok;
   1163 		td[i]->len=tlen;
   1164 		toggle = ADMHCD_TD_TOGGLE;
   1165 		len -= tlen;
   1166 		offset += tlen;
   1167 		td[i]->next = td[i+1];
   1168 		i++;
   1169 	};
   1170 
   1171 	td[i]->buffer = 0;
   1172 	td[i]->buflen = 0;
   1173 	td[i]->control = 0;
   1174 	td[i]->next = 0;
   1175 
   1176 	ep->head = td[0];
   1177 	ep->tail = td[i];
   1178 	segs = i;
   1179 	len = 0;
   1180 
   1181 /*	printf("segs: %d\n",segs);
   1182 	printf("ep: %p\n",ep);
   1183 	printf("ep->control: %x\n",ep->control);
   1184 	printf("ep->next: %p\n",ep->next);
   1185 	printf("ep->head: %p\n",ep->head);
   1186 	printf("ep->tail: %p\n",ep->tail);
   1187 	for (i=0; i<segs; i++) {
   1188 		printf("td[%d]: %p\n",i,td[i]);
   1189 		printf("td[%d]->control: %x\n",i,td[i]->control);
   1190 		printf("td[%d]->next: %p\n",i,td[i]->next);
   1191 		printf("td[%d]->buffer: %x\n",i,td[i]->buffer);
   1192 		printf("td[%d]->buflen: %x\n",i,td[i]->buflen);
   1193 	}; */
   1194 
   1195 	REG_WRITE(ADMHCD_REG_HOSTHEAD, (uint32_t)ep);
   1196 	REG_WRITE(ADMHCD_REG_HOSTCONTROL, ADMHCD_STATE_OP | ADMHCD_DMA_EN);
   1197 	i = 0;
   1198 /*	printf("1: %x %d %x %x\n", ep->control, i, td[i]->control, td[i]->buflen); */
   1199 	s=100;
   1200 	err = 0;
   1201 	while (s--) {
   1202 /*                printf("%x %d %x %x\n", ep->control, i, td[i]->control, td[i]->buflen); */
   1203 		status = USBD_TIMEOUT;
   1204 		if (td[i]->control & ADMHCD_TD_OWN) {
   1205 			delay_ms(3);
   1206 			continue;
   1207 		};
   1208 
   1209 		len += td[i]->len - td[i]->buflen;
   1210 
   1211 		err = (td[i]->control & ADMHCD_TD_ERRMASK)>>ADMHCD_TD_ERRSHIFT;
   1212 		if (err) {
   1213 			status = USBD_IOERROR;
   1214 			break;
   1215 		};
   1216 
   1217 		i++;
   1218 		if (i==segs) {
   1219 			status = USBD_NORMAL_COMPLETION;
   1220 			break;
   1221 		};
   1222 
   1223 	};
   1224 	REG_WRITE(ADMHCD_REG_HOSTCONTROL, ADMHCD_STATE_OP);
   1225 
   1226 	apipe->toggle = ((uint32_t)ep->head & 2)?ADMHCD_TD_DATA1:ADMHCD_TD_DATA0;
   1227 /*	printf("bulk_transfer_done: status: %x, err: %x, len: %x, toggle: %x\n", status,err,len,apipe->toggle); */
   1228 
   1229 	if (short_ok && (err == 0x9 || err == 0xd)) {
   1230 /*		printf("bulk_transfer_done: short_transfer fix\n"); */
   1231 		status = USBD_NORMAL_COMPLETION;
   1232 	};
   1233 	xfer->ux_actlen = len;
   1234 	xfer->ux_status = status;
   1235 
   1236 	level--;
   1237 /*	printf("bulk_start<<<\n"); */
   1238 
   1239 	usb_transfer_complete(xfer);
   1240 	mutex_exit(&sc->sc_lock);
   1241 
   1242 	return USBD_NORMAL_COMPLETION;
   1243 }
   1244 
   1245 static void
   1246 ahci_device_bulk_abort(struct usbd_xfer *xfer)
   1247 {
   1248 	DPRINTF(D_TRACE, ("Bab "));
   1249 	ahci_abort_xfer(xfer, USBD_CANCELLED);
   1250 }
   1251 
   1252 static void
   1253 ahci_device_bulk_close(struct usbd_pipe *pipe)
   1254 {
   1255 	DPRINTF(D_TRACE, ("Bcl "));
   1256 }
   1257 
   1258 static void
   1259 ahci_device_bulk_done(struct usbd_xfer *xfer)
   1260 {
   1261 	DPRINTF(D_TRACE, ("Bdn "));
   1262 }
   1263 
   1264 #define DATA0_RD	(0x03)
   1265 #define DATA0_WR	(0x07)
   1266 #define AHCI_TIMEOUT	(5000)
   1267 
   1268 /*
   1269  * Do a transaction.
   1270  * return 1 if ACK, 0 if NAK, -1 if error.
   1271  */
   1272 static int
   1273 ahci_transaction(struct ahci_softc *sc, struct usbd_pipe *pipe,
   1274 	uint8_t pid, int len, u_char *buf, uint8_t toggle)
   1275 {
   1276 	return -1;
   1277 #if 0
   1278 #ifdef AHCI_DEBUG
   1279 	char str[64];
   1280 	int i;
   1281 #endif
   1282 	int timeout;
   1283 	int ls_via_hub = 0;
   1284 	int pl;
   1285 	uint8_t isr;
   1286 	uint8_t result = 0;
   1287 	uint8_t devaddr = pipe->up_dev->ud_addr;
   1288 	uint8_t endpointaddr = pipe->up_endpoint->ue_edesc->bEndpointAddress;
   1289 	uint8_t endpoint;
   1290 	uint8_t cmd = DATA0_RD;
   1291 
   1292 	endpoint = UE_GET_ADDR(endpointaddr);
   1293 	DPRINTF(D_XFER, ("\n(%x,%d%s%d,%d) ",
   1294 		pid, len, (pid == SL11_PID_IN) ? "<-" : "->", devaddr, endpoint));
   1295 
   1296 	/* Set registers */
   1297 	sl11write(sc, SL11_E0ADDR, 0x40);
   1298 	sl11write(sc, SL11_E0LEN,  len);
   1299 	sl11write(sc, SL11_E0PID,  (pid << 4) + endpoint);
   1300 	sl11write(sc, SL11_E0DEV,  devaddr);
   1301 
   1302 	/* Set buffer unless PID_IN */
   1303 	if (pid != SL11_PID_IN) {
   1304 		if (len > 0)
   1305 			sl11write_region(sc, 0x40, buf, len);
   1306 		cmd = DATA0_WR;
   1307 	}
   1308 
   1309 	/* timing ? */
   1310 	pl = (len >> 3) + 3;
   1311 
   1312 	/* Low speed device via HUB */
   1313 	/* XXX does not work... */
   1314 	if ((sc->sc_fullspeed) && pipe->up_dev->ud_speed == USB_SPEED_LOW) {
   1315 		pl = len + 16;
   1316 		cmd |= SL11_EPCTRL_PREAMBLE;
   1317 
   1318 		/*
   1319 		 * SL811HS/T rev 1.2 has a bug, when it got PID_IN
   1320 		 * from LowSpeed device via HUB.
   1321 		 */
   1322 		if (sc->sc_sltype == SLTYPE_SL811HS_R12 && pid == SL11_PID_IN) {
   1323 			ls_via_hub = 1;
   1324 			DPRINTF(D_MSG, ("LSvH "));
   1325 		}
   1326 	}
   1327 
   1328 	/* timing ? */
   1329 	if (sl11read(sc, SL811_CSOF) <= (uint8_t)pl)
   1330 		cmd |= SL11_EPCTRL_SOF;
   1331 
   1332 	/* Transfer */
   1333 	sl11write(sc, SL11_ISR, 0xff);
   1334 	sl11write(sc, SL11_E0CTRL, cmd | toggle);
   1335 
   1336 	/* Polling */
   1337 	for (timeout = AHCI_TIMEOUT; timeout; timeout--) {
   1338 		isr = sl11read(sc, SL11_ISR);
   1339 		if ((isr & SL11_ISR_USBA))
   1340 			break;
   1341 	}
   1342 
   1343 	/* Check result status */
   1344 	result = sl11read(sc, SL11_E0STAT);
   1345 	if (!(result & SL11_EPSTAT_NAK) && ls_via_hub) {
   1346 		/* Resend PID_IN within 20usec */
   1347 		sl11write(sc, SL11_ISR, 0xff);
   1348 		sl11write(sc, SL11_E0CTRL, SL11_EPCTRL_ARM);
   1349 	}
   1350 
   1351 	sl11write(sc, SL11_ISR, 0xff);
   1352 
   1353 	DPRINTF(D_XFER, ("t=%d i=%x ", AHCI_TIMEOUT - timeout, isr));
   1354 #if AHCI_DEBUG
   1355 	snprintb(str, sizeof(str),
   1356 	    "\20\x8STALL\7NAK\6OV\5SETUP\4DATA1\3TIMEOUT\2ERR\1ACK", result);
   1357 	DPRINTF(D_XFER, ("STAT=%s ", str));
   1358 #endif
   1359 
   1360 	if ((result & SL11_EPSTAT_ERROR))
   1361 		return -1;
   1362 
   1363 	if ((result & SL11_EPSTAT_NAK))
   1364 		return 0;
   1365 
   1366 	/* Read buffer if PID_IN */
   1367 	if (pid == SL11_PID_IN && len > 0) {
   1368 		sl11read_region(sc, buf, 0x40, len);
   1369 #if AHCI_DEBUG
   1370 		for (i = 0; i < len; i++)
   1371 			DPRINTF(D_XFER, ("%02X ", buf[i]));
   1372 #endif
   1373 	}
   1374 
   1375 	return 1;
   1376 #endif
   1377 }
   1378 
   1379 void
   1380 ahci_abort_xfer(struct usbd_xfer *xfer, usbd_status status)
   1381 {
   1382 	xfer->ux_status = status;
   1383 	usb_transfer_complete(xfer);
   1384 }
   1385 
   1386 void
   1387 ahci_device_clear_toggle(struct usbd_pipe *pipe)
   1388 {
   1389 	struct ahci_pipe *apipe = (struct ahci_pipe *)pipe;
   1390 	apipe->toggle = 0;
   1391 }
   1392 
   1393 #ifdef AHCI_DEBUG
   1394 void
   1395 print_req(usb_device_request_t *r)
   1396 {
   1397 	const char *xmes[]={
   1398 		"GETSTAT",
   1399 		"CLRFEAT",
   1400 		"res",
   1401 		"SETFEAT",
   1402 		"res",
   1403 		"SETADDR",
   1404 		"GETDESC",
   1405 		"SETDESC",
   1406 		"GETCONF",
   1407 		"SETCONF",
   1408 		"GETIN/F",
   1409 		"SETIN/F",
   1410 		"SYNC_FR"
   1411 	};
   1412 	int req, type, value, index, len;
   1413 
   1414 	req   = r->bRequest;
   1415 	type  = r->bmRequestType;
   1416 	value = UGETW(r->wValue);
   1417 	index = UGETW(r->wIndex);
   1418 	len   = UGETW(r->wLength);
   1419 
   1420 	printf("%x,%s,v=%d,i=%d,l=%d ",
   1421 		type, xmes[req], value, index, len);
   1422 }
   1423 
   1424 void
   1425 print_req_hub(usb_device_request_t *r)
   1426 {
   1427 	struct {
   1428 		int req;
   1429 		int type;
   1430 		const char *str;
   1431 	} conf[] = {
   1432 		{ 1, 0x20, "ClrHubFeat"  },
   1433 		{ 1, 0x23, "ClrPortFeat" },
   1434 		{ 2, 0xa3, "GetBusState" },
   1435 		{ 6, 0xa0, "GetHubDesc"  },
   1436 		{ 0, 0xa0, "GetHubStat"  },
   1437 		{ 0, 0xa3, "GetPortStat" },
   1438 		{ 7, 0x20, "SetHubDesc"  },
   1439 		{ 3, 0x20, "SetHubFeat"  },
   1440 		{ 3, 0x23, "SetPortFeat" },
   1441 		{-1, 0, NULL},
   1442 	};
   1443 	int i;
   1444 	int value, index, len;
   1445 
   1446 	value = UGETW(r->wValue);
   1447 	index = UGETW(r->wIndex);
   1448 	len   = UGETW(r->wLength);
   1449 	for (i = 0; ; i++) {
   1450 		if (conf[i].req == -1 )
   1451 			return print_req(r);
   1452 		if (r->bmRequestType == conf[i].type && r->bRequest == conf[i].req) {
   1453 			printf("%s", conf[i].str);
   1454 			break;
   1455 		}
   1456 	}
   1457 	printf(",v=%d,i=%d,l=%d ", value, index, len);
   1458 }
   1459 
   1460 void
   1461 print_dumpreg(struct ahci_softc *sc)
   1462 {
   1463 #if 0
   1464 	printf("00=%02x,01=%02x,02=%02x,03=%02x,04=%02x,"
   1465 	       "08=%02x,09=%02x,0A=%02x,0B=%02x,0C=%02x,",
   1466 		sl11read(sc, 0),  sl11read(sc, 1),
   1467 		sl11read(sc, 2),  sl11read(sc, 3),
   1468 		sl11read(sc, 4),  sl11read(sc, 8),
   1469 		sl11read(sc, 9),  sl11read(sc, 10),
   1470 		sl11read(sc, 11), sl11read(sc, 12)
   1471 	);
   1472 	printf("CR1=%02x,IER=%02x,0D=%02x,0E=%02x,0F=%02x ",
   1473 		sl11read(sc, 5), sl11read(sc, 6),
   1474 		sl11read(sc, 13), sl11read(sc, 14), sl11read(sc, 15)
   1475 	);
   1476 #endif
   1477 }
   1478 
   1479 void
   1480 print_xfer(struct usbd_xfer *xfer)
   1481 {
   1482 	printf("xfer: length=%d, actlen=%d, flags=%x, timeout=%d,",
   1483 		xfer->ux_length, xfer->ux_actlen, xfer->ux_flags, xfer->ux_timeout);
   1484 	printf("request{ ");
   1485 	print_req_hub(&xfer->ux_request);
   1486 	printf("} ");
   1487 }
   1488 #endif /* AHCI_DEBUG */
   1489