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uvscom.c revision 1.28.20.1
      1 /*	$NetBSD: uvscom.c,v 1.28.20.1 2016/09/06 20:33:09 skrll Exp $	*/
      2 /*-
      3  * Copyright (c) 2001-2002, Shunsuke Akiyama <akiyama (at) jp.FreeBSD.org>.
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25  * SUCH DAMAGE.
     26  *
     27  * $FreeBSD: src/sys/dev/usb/uvscom.c,v 1.1 2002/03/18 18:23:39 joe Exp $
     28  */
     29 
     30 /*
     31  * uvscom: SUNTAC Slipper U VS-10U driver.
     32  * Slipper U is a PC card to USB converter for data communication card
     33  * adapter.  It supports DDI Pocket's Air H" C@rd, C@rd H" 64, NTT's P-in,
     34  * P-in m@ater and various data communication card adapters.
     35  */
     36 
     37 #include <sys/cdefs.h>
     38 __KERNEL_RCSID(0, "$NetBSD: uvscom.c,v 1.28.20.1 2016/09/06 20:33:09 skrll Exp $");
     39 
     40 #include <sys/param.h>
     41 #include <sys/systm.h>
     42 #include <sys/kernel.h>
     43 #include <sys/kmem.h>
     44 #include <sys/fcntl.h>
     45 #include <sys/conf.h>
     46 #include <sys/tty.h>
     47 #include <sys/file.h>
     48 #include <sys/ioctl.h>
     49 #include <sys/device.h>
     50 #include <sys/proc.h>
     51 #include <sys/poll.h>
     52 
     53 #include <dev/usb/usb.h>
     54 #include <dev/usb/usbcdc.h>
     55 
     56 #include <dev/usb/usbdi.h>
     57 #include <dev/usb/usbdi_util.h>
     58 #include <dev/usb/usbdevs.h>
     59 #include <dev/usb/usb_quirks.h>
     60 
     61 #include <dev/usb/ucomvar.h>
     62 
     63 #ifdef UVSCOM_DEBUG
     64 static int	uvscomdebug = 1;
     65 
     66 #define DPRINTFN(n, x)  do { \
     67 				if (uvscomdebug > (n)) \
     68 					printf x; \
     69 			} while (0)
     70 #else
     71 #define DPRINTFN(n, x)
     72 #endif
     73 #define DPRINTF(x) DPRINTFN(0, x)
     74 
     75 #define	UVSCOM_CONFIG_INDEX	0
     76 #define	UVSCOM_IFACE_INDEX	0
     77 
     78 #define UVSCOM_INTR_INTERVAL	100	/* mS */
     79 
     80 #define UVSCOM_UNIT_WAIT	5
     81 
     82 /* Request */
     83 #define UVSCOM_SET_SPEED	0x10
     84 #define UVSCOM_LINE_CTL		0x11
     85 #define UVSCOM_SET_PARAM	0x12
     86 #define UVSCOM_READ_STATUS	0xd0
     87 #define UVSCOM_SHUTDOWN		0xe0
     88 
     89 /* UVSCOM_SET_SPEED parameters */
     90 #define UVSCOM_SPEED_150BPS	0x00
     91 #define UVSCOM_SPEED_300BPS	0x01
     92 #define UVSCOM_SPEED_600BPS	0x02
     93 #define UVSCOM_SPEED_1200BPS	0x03
     94 #define UVSCOM_SPEED_2400BPS	0x04
     95 #define UVSCOM_SPEED_4800BPS	0x05
     96 #define UVSCOM_SPEED_9600BPS	0x06
     97 #define UVSCOM_SPEED_19200BPS	0x07
     98 #define UVSCOM_SPEED_38400BPS	0x08
     99 #define UVSCOM_SPEED_57600BPS	0x09
    100 #define UVSCOM_SPEED_115200BPS	0x0a
    101 
    102 /* UVSCOM_LINE_CTL parameters */
    103 #define UVSCOM_BREAK		0x40
    104 #define UVSCOM_RTS		0x02
    105 #define UVSCOM_DTR		0x01
    106 #define UVSCOM_LINE_INIT	0x08
    107 
    108 /* UVSCOM_SET_PARAM parameters */
    109 #define UVSCOM_DATA_MASK	0x03
    110 #define UVSCOM_DATA_BIT_8	0x03
    111 #define UVSCOM_DATA_BIT_7	0x02
    112 #define UVSCOM_DATA_BIT_6	0x01
    113 #define UVSCOM_DATA_BIT_5	0x00
    114 
    115 #define UVSCOM_STOP_MASK	0x04
    116 #define UVSCOM_STOP_BIT_2	0x04
    117 #define UVSCOM_STOP_BIT_1	0x00
    118 
    119 #define UVSCOM_PARITY_MASK	0x18
    120 #define UVSCOM_PARITY_EVEN	0x18
    121 #if 0
    122 #define UVSCOM_PARITY_UNK	0x10
    123 #endif
    124 #define UVSCOM_PARITY_ODD	0x08
    125 #define UVSCOM_PARITY_NONE	0x00
    126 
    127 /* Status bits */
    128 #define UVSCOM_TXRDY		0x04
    129 #define UVSCOM_RXRDY		0x01
    130 
    131 #define UVSCOM_DCD		0x08
    132 #define UVSCOM_NOCARD		0x04
    133 #define UVSCOM_DSR		0x02
    134 #define UVSCOM_CTS		0x01
    135 #define UVSCOM_USTAT_MASK	(UVSCOM_NOCARD | UVSCOM_DSR | UVSCOM_CTS)
    136 
    137 struct	uvscom_softc {
    138 	device_t		sc_dev;		/* base device */
    139 	struct usbd_device *	sc_udev;	/* USB device */
    140 	struct usbd_interface *	sc_iface;	/* interface */
    141 	int			sc_iface_number;/* interface number */
    142 
    143 	struct usbd_interface *	sc_intr_iface;	/* interrupt interface */
    144 	int			sc_intr_number;	/* interrupt number */
    145 	struct usbd_pipe *	sc_intr_pipe;	/* interrupt pipe */
    146 	u_char			*sc_intr_buf;	/* interrupt buffer */
    147 	int			sc_isize;
    148 
    149 	u_char			sc_dtr;		/* current DTR state */
    150 	u_char			sc_rts;		/* current RTS state */
    151 
    152 	u_char			sc_lsr;		/* Local status register */
    153 	u_char			sc_msr;		/* uvscom status register */
    154 
    155 	uint16_t		sc_lcr;		/* Line control */
    156 	u_char			sc_usr;		/* unit status */
    157 
    158 	device_t		sc_subdev;	/* ucom device */
    159 	u_char			sc_dying;	/* disconnecting */
    160 };
    161 
    162 /*
    163  * These are the maximum number of bytes transferred per frame.
    164  * The output buffer size cannot be increased due to the size encoding.
    165  */
    166 #define UVSCOMIBUFSIZE 512
    167 #define UVSCOMOBUFSIZE 64
    168 
    169 Static	usbd_status uvscom_readstat(struct uvscom_softc *);
    170 Static	usbd_status uvscom_shutdown(struct uvscom_softc *);
    171 Static	usbd_status uvscom_reset(struct uvscom_softc *);
    172 Static	usbd_status uvscom_set_line_coding(struct uvscom_softc *,
    173 					   uint16_t, uint16_t);
    174 Static	usbd_status uvscom_set_line(struct uvscom_softc *, uint16_t);
    175 Static	usbd_status uvscom_set_crtscts(struct uvscom_softc *);
    176 Static	void uvscom_get_status(void *, int, u_char *, u_char *);
    177 Static	void uvscom_dtr(struct uvscom_softc *, int);
    178 Static	void uvscom_rts(struct uvscom_softc *, int);
    179 Static	void uvscom_break(struct uvscom_softc *, int);
    180 
    181 Static	void uvscom_set(void *, int, int, int);
    182 Static	void uvscom_intr(struct usbd_xfer *, void *, usbd_status);
    183 Static	int  uvscom_param(void *, int, struct termios *);
    184 Static	int  uvscom_open(void *, int);
    185 Static	void uvscom_close(void *, int);
    186 
    187 struct ucom_methods uvscom_methods = {
    188 	.ucom_get_status = uvscom_get_status,
    189 	.ucom_set = uvscom_set,
    190 	.ucom_param = uvscom_param,
    191 	.ucom_ioctl = NULL,		/* TODO */
    192 	.ucom_open = uvscom_open,
    193 	.ucom_close = uvscom_close,
    194 	.ucom_read = NULL,
    195 	.ucom_write = NULL
    196 };
    197 
    198 static const struct usb_devno uvscom_devs [] = {
    199 	/* SUNTAC U-Cable type A4 */
    200 	{ USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_AS144L4 },
    201 	/* SUNTAC U-Cable type D2 */
    202 	{ USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_DS96L },
    203 	/* SUNTAC U-Cable type P1 */
    204 	{ USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_PS64P1 },
    205 	/* SUNTAC Slipper U  */
    206 	{ USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_VS10U },
    207 	/* SUNTAC Ir-Trinity */
    208 	{ USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_IS96U },
    209 };
    210 #define uvscom_lookup(v, p) usb_lookup(uvscom_devs, v, p)
    211 
    212 int uvscom_match(device_t, cfdata_t, void *);
    213 void uvscom_attach(device_t, device_t, void *);
    214 void uvscom_childdet(device_t, device_t);
    215 int uvscom_detach(device_t, int);
    216 int uvscom_activate(device_t, enum devact);
    217 extern struct cfdriver uvscom_cd;
    218 CFATTACH_DECL2_NEW(uvscom, sizeof(struct uvscom_softc), uvscom_match,
    219     uvscom_attach, uvscom_detach, uvscom_activate, NULL, uvscom_childdet);
    220 
    221 int
    222 uvscom_match(device_t parent, cfdata_t match, void *aux)
    223 {
    224 	struct usb_attach_arg *uaa = aux;
    225 
    226 	return uvscom_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ?
    227 		UMATCH_VENDOR_PRODUCT : UMATCH_NONE;
    228 }
    229 
    230 void
    231 uvscom_attach(device_t parent, device_t self, void *aux)
    232 {
    233 	struct uvscom_softc *sc = device_private(self);
    234 	struct usb_attach_arg *uaa = aux;
    235 	struct usbd_device *dev = uaa->uaa_device;
    236 	usb_config_descriptor_t *cdesc;
    237 	usb_interface_descriptor_t *id;
    238 	usb_endpoint_descriptor_t *ed;
    239 	char *devinfop;
    240 	usbd_status err;
    241 	int i;
    242 	struct ucom_attach_args ucaa;
    243 
    244 	aprint_naive("\n");
    245 	aprint_normal("\n");
    246 
    247 	devinfop = usbd_devinfo_alloc(dev, 0);
    248 	aprint_normal_dev(self, "%s\n", devinfop);
    249 	usbd_devinfo_free(devinfop);
    250 
    251 	sc->sc_dev = self;
    252         sc->sc_udev = dev;
    253 
    254 	DPRINTF(("uvscom attach: sc = %p\n", sc));
    255 
    256 	/* initialize endpoints */
    257 	ucaa.ucaa_bulkin = ucaa.ucaa_bulkout = -1;
    258 	sc->sc_intr_number = -1;
    259 	sc->sc_intr_pipe = NULL;
    260 
    261 	/* Move the device into the configured state. */
    262 	err = usbd_set_config_index(dev, UVSCOM_CONFIG_INDEX, 1);
    263 	if (err) {
    264 		aprint_error_dev(self, "failed to set configuration, err=%s\n",
    265 		    usbd_errstr(err));
    266 		sc->sc_dying = 1;
    267 		return;
    268 	}
    269 
    270 	/* get the config descriptor */
    271 	cdesc = usbd_get_config_descriptor(sc->sc_udev);
    272 
    273 	if (cdesc == NULL) {
    274 		aprint_error_dev(self,
    275 		    "failed to get configuration descriptor\n");
    276 		sc->sc_dying = 1;
    277 		return;
    278 	}
    279 
    280 	/* get the common interface */
    281 	err = usbd_device2interface_handle(dev, UVSCOM_IFACE_INDEX,
    282 					   &sc->sc_iface);
    283 	if (err) {
    284 		aprint_error_dev(self, "failed to get interface, err=%s\n",
    285 		    usbd_errstr(err));
    286 		sc->sc_dying = 1;
    287 		return;
    288 	}
    289 
    290 	id = usbd_get_interface_descriptor(sc->sc_iface);
    291 	sc->sc_iface_number = id->bInterfaceNumber;
    292 
    293 	/* Find endpoints */
    294 	for (i = 0; i < id->bNumEndpoints; i++) {
    295 		ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
    296 		if (ed == NULL) {
    297 			aprint_error_dev(self,
    298 			    "no endpoint descriptor for %d\n", i);
    299 			sc->sc_dying = 1;
    300 			return;
    301 		}
    302 
    303 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    304 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
    305 			ucaa.ucaa_bulkin = ed->bEndpointAddress;
    306 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
    307 			   UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
    308 			ucaa.ucaa_bulkout = ed->bEndpointAddress;
    309 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    310 			   UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
    311 			sc->sc_intr_number = ed->bEndpointAddress;
    312 			sc->sc_isize = UGETW(ed->wMaxPacketSize);
    313 		}
    314 	}
    315 
    316 	if (ucaa.ucaa_bulkin == -1) {
    317 		aprint_error_dev(self, "Could not find data bulk in\n");
    318 		sc->sc_dying = 1;
    319 		return;
    320 	}
    321 	if (ucaa.ucaa_bulkout == -1) {
    322 		aprint_error_dev(self, "Could not find data bulk out\n");
    323 		sc->sc_dying = 1;
    324 		return;
    325 	}
    326 	if (sc->sc_intr_number == -1) {
    327 		aprint_error_dev(self, "Could not find interrupt in\n");
    328 		sc->sc_dying = 1;
    329 		return;
    330 	}
    331 
    332 	sc->sc_dtr = sc->sc_rts = 0;
    333 	sc->sc_lcr = UVSCOM_LINE_INIT;
    334 
    335 	ucaa.ucaa_portno = UCOM_UNK_PORTNO;
    336 	/* ucaa_bulkin, ucaa_bulkout set above */
    337 	ucaa.ucaa_ibufsize = UVSCOMIBUFSIZE;
    338 	ucaa.ucaa_obufsize = UVSCOMOBUFSIZE;
    339 	ucaa.ucaa_ibufsizepad = UVSCOMIBUFSIZE;
    340 	ucaa.ucaa_opkthdrlen = 0;
    341 	ucaa.ucaa_device = dev;
    342 	ucaa.ucaa_iface = sc->sc_iface;
    343 	ucaa.ucaa_methods = &uvscom_methods;
    344 	ucaa.ucaa_arg = sc;
    345 	ucaa.ucaa_info = NULL;
    346 
    347 	err = uvscom_reset(sc);
    348 
    349 	if (err) {
    350 		aprint_error_dev(self, "reset failed, %s\n", usbd_errstr(err));
    351 		sc->sc_dying = 1;
    352 		return;
    353 	}
    354 
    355 	DPRINTF(("uvscom: in = 0x%x out = 0x%x intr = 0x%x\n",
    356 		 ucaa.ucaa_bulkin, ucaa.ucaa_bulkout, sc->sc_intr_number));
    357 
    358 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev);
    359 
    360 	DPRINTF(("uplcom: in=0x%x out=0x%x intr=0x%x\n",
    361 		ucaa.ucaa_bulkin, ucaa.ucaa_bulkout, sc->sc_intr_number ));
    362 	sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &ucaa,
    363 					    ucomprint, ucomsubmatch);
    364 
    365 	return;
    366 }
    367 
    368 void
    369 uvscom_childdet(device_t self, device_t child)
    370 {
    371 	struct uvscom_softc *sc = device_private(self);
    372 
    373 	KASSERT(sc->sc_subdev == child);
    374 	sc->sc_subdev = NULL;
    375 }
    376 
    377 int
    378 uvscom_detach(device_t self, int flags)
    379 {
    380 	struct uvscom_softc *sc = device_private(self);
    381 	int rv = 0;
    382 
    383 	DPRINTF(("uvscom_detach: sc = %p\n", sc));
    384 
    385 	sc->sc_dying = 1;
    386 
    387 	if (sc->sc_intr_pipe != NULL) {
    388 		usbd_abort_pipe(sc->sc_intr_pipe);
    389 		usbd_close_pipe(sc->sc_intr_pipe);
    390 		kmem_free(sc->sc_intr_buf, sc->sc_isize);
    391 		sc->sc_intr_pipe = NULL;
    392 	}
    393 
    394 	sc->sc_dying = 1;
    395 	if (sc->sc_subdev != NULL)
    396 		rv = config_detach(sc->sc_subdev, flags);
    397 
    398 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
    399 
    400 	return rv;
    401 }
    402 
    403 int
    404 uvscom_activate(device_t self, enum devact act)
    405 {
    406 	struct uvscom_softc *sc = device_private(self);
    407 
    408 	switch (act) {
    409 	case DVACT_DEACTIVATE:
    410 		sc->sc_dying = 1;
    411 		return 0;
    412 	default:
    413 		return EOPNOTSUPP;
    414 	}
    415 }
    416 
    417 Static usbd_status
    418 uvscom_readstat(struct uvscom_softc *sc)
    419 {
    420 	usb_device_request_t req;
    421 	usbd_status err;
    422 	uint16_t r;
    423 
    424 	DPRINTF(("%s: send readstat\n", device_xname(sc->sc_dev)));
    425 
    426 	req.bmRequestType = UT_READ_VENDOR_DEVICE;
    427 	req.bRequest = UVSCOM_READ_STATUS;
    428 	USETW(req.wValue, 0);
    429 	USETW(req.wIndex, 0);
    430 	USETW(req.wLength, 2);
    431 
    432 	err = usbd_do_request(sc->sc_udev, &req, &r);
    433 	if (err) {
    434 		aprint_error_dev(sc->sc_dev, "uvscom_readstat: %s\n",
    435 		    usbd_errstr(err));
    436 		return err;
    437 	}
    438 
    439 	DPRINTF(("%s: uvscom_readstat: r = %d\n",
    440 		 device_xname(sc->sc_dev), r));
    441 
    442 	return USBD_NORMAL_COMPLETION;
    443 }
    444 
    445 Static usbd_status
    446 uvscom_shutdown(struct uvscom_softc *sc)
    447 {
    448 	usb_device_request_t req;
    449 	usbd_status err;
    450 
    451 	DPRINTF(("%s: send shutdown\n", device_xname(sc->sc_dev)));
    452 
    453 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    454 	req.bRequest = UVSCOM_SHUTDOWN;
    455 	USETW(req.wValue, 0);
    456 	USETW(req.wIndex, 0);
    457 	USETW(req.wLength, 0);
    458 
    459 	err = usbd_do_request(sc->sc_udev, &req, NULL);
    460 	if (err) {
    461 		aprint_error_dev(sc->sc_dev, "uvscom_shutdown: %s\n",
    462 		   usbd_errstr(err));
    463 		return err;
    464 	}
    465 
    466 	return USBD_NORMAL_COMPLETION;
    467 }
    468 
    469 Static usbd_status
    470 uvscom_reset(struct uvscom_softc *sc)
    471 {
    472 	DPRINTF(("%s: uvscom_reset\n", device_xname(sc->sc_dev)));
    473 
    474 	return USBD_NORMAL_COMPLETION;
    475 }
    476 
    477 Static usbd_status
    478 uvscom_set_crtscts(struct uvscom_softc *sc)
    479 {
    480 	DPRINTF(("%s: uvscom_set_crtscts\n", device_xname(sc->sc_dev)));
    481 
    482 	return USBD_NORMAL_COMPLETION;
    483 }
    484 
    485 Static usbd_status
    486 uvscom_set_line(struct uvscom_softc *sc, uint16_t line)
    487 {
    488 	usb_device_request_t req;
    489 	usbd_status err;
    490 
    491 	DPRINTF(("%s: uvscom_set_line: %04x\n",
    492 		 device_xname(sc->sc_dev), line));
    493 
    494 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    495 	req.bRequest = UVSCOM_LINE_CTL;
    496 	USETW(req.wValue, line);
    497 	USETW(req.wIndex, 0);
    498 	USETW(req.wLength, 0);
    499 
    500 	err = usbd_do_request(sc->sc_udev, &req, NULL);
    501 	if (err) {
    502 		aprint_error_dev(sc->sc_dev, "uvscom_set_line: %s\n",
    503 		    usbd_errstr(err));
    504 		return err;
    505 	}
    506 
    507 	return USBD_NORMAL_COMPLETION;
    508 }
    509 
    510 Static usbd_status
    511 uvscom_set_line_coding(struct uvscom_softc *sc, uint16_t lsp, uint16_t ls)
    512 {
    513 	usb_device_request_t req;
    514 	usbd_status err;
    515 
    516 	DPRINTF(("%s: uvscom_set_line_coding: %02x %02x\n",
    517 		 device_xname(sc->sc_dev), lsp, ls));
    518 
    519 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    520 	req.bRequest = UVSCOM_SET_SPEED;
    521 	USETW(req.wValue, lsp);
    522 	USETW(req.wIndex, 0);
    523 	USETW(req.wLength, 0);
    524 
    525 	err = usbd_do_request(sc->sc_udev, &req, NULL);
    526 	if (err) {
    527 		aprint_error_dev(sc->sc_dev, "uvscom_set_line_coding: %s\n",
    528 		   usbd_errstr(err));
    529 		return err;
    530 	}
    531 
    532 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    533 	req.bRequest = UVSCOM_SET_PARAM;
    534 	USETW(req.wValue, ls);
    535 	USETW(req.wIndex, 0);
    536 	USETW(req.wLength, 0);
    537 
    538 	err = usbd_do_request(sc->sc_udev, &req, NULL);
    539 	if (err) {
    540 		aprint_error_dev(sc->sc_dev, "uvscom_set_line_coding: %s\n",
    541 		   usbd_errstr(err));
    542 		return err;
    543 	}
    544 
    545 	return USBD_NORMAL_COMPLETION;
    546 }
    547 
    548 Static void
    549 uvscom_dtr(struct uvscom_softc *sc, int onoff)
    550 {
    551 	DPRINTF(("%s: uvscom_dtr: onoff = %d\n",
    552 		 device_xname(sc->sc_dev), onoff));
    553 
    554 	if (sc->sc_dtr == onoff)
    555 		return;			/* no change */
    556 
    557 	sc->sc_dtr = onoff;
    558 
    559 	if (onoff)
    560 		SET(sc->sc_lcr, UVSCOM_DTR);
    561 	else
    562 		CLR(sc->sc_lcr, UVSCOM_DTR);
    563 
    564 	uvscom_set_line(sc, sc->sc_lcr);
    565 }
    566 
    567 Static void
    568 uvscom_rts(struct uvscom_softc *sc, int onoff)
    569 {
    570 	DPRINTF(("%s: uvscom_rts: onoff = %d\n",
    571 		 device_xname(sc->sc_dev), onoff));
    572 
    573 	if (sc->sc_rts == onoff)
    574 		return;			/* no change */
    575 
    576 	sc->sc_rts = onoff;
    577 
    578 	if (onoff)
    579 		SET(sc->sc_lcr, UVSCOM_RTS);
    580 	else
    581 		CLR(sc->sc_lcr, UVSCOM_RTS);
    582 
    583 	uvscom_set_line(sc, sc->sc_lcr);
    584 }
    585 
    586 Static void
    587 uvscom_break(struct uvscom_softc *sc, int onoff)
    588 {
    589 	DPRINTF(("%s: uvscom_break: onoff = %d\n",
    590 		 device_xname(sc->sc_dev), onoff));
    591 
    592 	if (onoff)
    593 		uvscom_set_line(sc, SET(sc->sc_lcr, UVSCOM_BREAK));
    594 }
    595 
    596 Static void
    597 uvscom_set(void *addr, int portno, int reg, int onoff)
    598 {
    599 	struct uvscom_softc *sc = addr;
    600 
    601 	switch (reg) {
    602 	case UCOM_SET_DTR:
    603 		uvscom_dtr(sc, onoff);
    604 		break;
    605 	case UCOM_SET_RTS:
    606 		uvscom_rts(sc, onoff);
    607 		break;
    608 	case UCOM_SET_BREAK:
    609 		uvscom_break(sc, onoff);
    610 		break;
    611 	default:
    612 		break;
    613 	}
    614 }
    615 
    616 Static int
    617 uvscom_param(void *addr, int portno, struct termios *t)
    618 {
    619 	struct uvscom_softc *sc = addr;
    620 	usbd_status err;
    621 	uint16_t lsp;
    622 	uint16_t ls;
    623 
    624 	DPRINTF(("%s: uvscom_param: sc = %p\n",
    625 		 device_xname(sc->sc_dev), sc));
    626 
    627 	ls = 0;
    628 
    629 	switch (t->c_ospeed) {
    630 	case B150:
    631 		lsp = UVSCOM_SPEED_150BPS;
    632 		break;
    633 	case B300:
    634 		lsp = UVSCOM_SPEED_300BPS;
    635 		break;
    636 	case B600:
    637 		lsp = UVSCOM_SPEED_600BPS;
    638 		break;
    639 	case B1200:
    640 		lsp = UVSCOM_SPEED_1200BPS;
    641 		break;
    642 	case B2400:
    643 		lsp = UVSCOM_SPEED_2400BPS;
    644 		break;
    645 	case B4800:
    646 		lsp = UVSCOM_SPEED_4800BPS;
    647 		break;
    648 	case B9600:
    649 		lsp = UVSCOM_SPEED_9600BPS;
    650 		break;
    651 	case B19200:
    652 		lsp = UVSCOM_SPEED_19200BPS;
    653 		break;
    654 	case B38400:
    655 		lsp = UVSCOM_SPEED_38400BPS;
    656 		break;
    657 	case B57600:
    658 		lsp = UVSCOM_SPEED_57600BPS;
    659 		break;
    660 	case B115200:
    661 		lsp = UVSCOM_SPEED_115200BPS;
    662 		break;
    663 	default:
    664 		return EIO;
    665 	}
    666 
    667 	if (ISSET(t->c_cflag, CSTOPB))
    668 		SET(ls, UVSCOM_STOP_BIT_2);
    669 	else
    670 		SET(ls, UVSCOM_STOP_BIT_1);
    671 
    672 	if (ISSET(t->c_cflag, PARENB)) {
    673 		if (ISSET(t->c_cflag, PARODD))
    674 			SET(ls, UVSCOM_PARITY_ODD);
    675 		else
    676 			SET(ls, UVSCOM_PARITY_EVEN);
    677 	} else
    678 		SET(ls, UVSCOM_PARITY_NONE);
    679 
    680 	switch (ISSET(t->c_cflag, CSIZE)) {
    681 	case CS5:
    682 		SET(ls, UVSCOM_DATA_BIT_5);
    683 		break;
    684 	case CS6:
    685 		SET(ls, UVSCOM_DATA_BIT_6);
    686 		break;
    687 	case CS7:
    688 		SET(ls, UVSCOM_DATA_BIT_7);
    689 		break;
    690 	case CS8:
    691 		SET(ls, UVSCOM_DATA_BIT_8);
    692 		break;
    693 	default:
    694 		return EIO;
    695 	}
    696 
    697 	err = uvscom_set_line_coding(sc, lsp, ls);
    698 	if (err)
    699 		return EIO;
    700 
    701 	if (ISSET(t->c_cflag, CRTSCTS)) {
    702 		err = uvscom_set_crtscts(sc);
    703 		if (err)
    704 			return EIO;
    705 	}
    706 
    707 	return 0;
    708 }
    709 
    710 Static int
    711 uvscom_open(void *addr, int portno)
    712 {
    713 	struct uvscom_softc *sc = addr;
    714 	int err;
    715 	int i;
    716 
    717 	if (sc->sc_dying)
    718 		return EIO;
    719 
    720 	DPRINTF(("uvscom_open: sc = %p\n", sc));
    721 
    722 	if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) {
    723 		DPRINTF(("uvscom_open: open interrupt pipe.\n"));
    724 
    725 		sc->sc_usr = 0;		/* clear unit status */
    726 
    727 		err = uvscom_readstat(sc);
    728 		if (err) {
    729 			DPRINTF(("%s: uvscom_open: readstat faild\n",
    730 				 device_xname(sc->sc_dev)));
    731 			return EIO;
    732 		}
    733 
    734 		sc->sc_intr_buf = kmem_alloc(sc->sc_isize, KM_SLEEP);
    735 		err = usbd_open_pipe_intr(sc->sc_iface,
    736 					  sc->sc_intr_number,
    737 					  USBD_SHORT_XFER_OK,
    738 					  &sc->sc_intr_pipe,
    739 					  sc,
    740 					  sc->sc_intr_buf,
    741 					  sc->sc_isize,
    742 					  uvscom_intr,
    743 					  UVSCOM_INTR_INTERVAL);
    744 		if (err) {
    745 			aprint_error_dev(sc->sc_dev,
    746 			    "cannot open interrupt pipe (addr %d)\n",
    747 				 sc->sc_intr_number);
    748 			return EIO;
    749 		}
    750 	} else {
    751 		DPRINTF(("uvscom_open: did not open interrupt pipe.\n"));
    752 	}
    753 
    754 	if ((sc->sc_usr & UVSCOM_USTAT_MASK) == 0) {
    755 		/* unit is not ready */
    756 
    757 		for (i = UVSCOM_UNIT_WAIT; i > 0; --i) {
    758 			tsleep(&err, TTIPRI, "uvsop", hz);	/* XXX */
    759 			if (ISSET(sc->sc_usr, UVSCOM_USTAT_MASK))
    760 				break;
    761 		}
    762 		if (i == 0) {
    763 			DPRINTF(("%s: unit is not ready\n",
    764 				 device_xname(sc->sc_dev)));
    765 			return EIO;
    766 		}
    767 
    768 		/* check PC card was inserted */
    769 		if (ISSET(sc->sc_usr, UVSCOM_NOCARD)) {
    770 			DPRINTF(("%s: no card\n",
    771 				 device_xname(sc->sc_dev)));
    772 			return EIO;
    773 		}
    774 	}
    775 
    776 	return 0;
    777 }
    778 
    779 Static void
    780 uvscom_close(void *addr, int portno)
    781 {
    782 	struct uvscom_softc *sc = addr;
    783 	int err;
    784 
    785 	if (sc->sc_dying)
    786 		return;
    787 
    788 	DPRINTF(("uvscom_close: close\n"));
    789 
    790 	uvscom_shutdown(sc);
    791 
    792 	if (sc->sc_intr_pipe != NULL) {
    793 		err = usbd_abort_pipe(sc->sc_intr_pipe);
    794 		if (err)
    795 			aprint_error_dev(sc->sc_dev,
    796 			    "abort interrupt pipe failed: %s\n",
    797 			    usbd_errstr(err));
    798 		err = usbd_close_pipe(sc->sc_intr_pipe);
    799 		if (err)
    800 			aprint_error_dev(sc->sc_dev,
    801 			    "lose interrupt pipe failed: %s\n",
    802 			    usbd_errstr(err));
    803 		kmem_free(sc->sc_intr_buf, sc->sc_isize);
    804 		sc->sc_intr_pipe = NULL;
    805 	}
    806 }
    807 
    808 Static void
    809 uvscom_intr(struct usbd_xfer *xfer, void *priv,
    810     usbd_status status)
    811 {
    812 	struct uvscom_softc *sc = priv;
    813 	u_char *buf = sc->sc_intr_buf;
    814 	u_char pstatus;
    815 
    816 	if (sc->sc_dying)
    817 		return;
    818 
    819 	if (status != USBD_NORMAL_COMPLETION) {
    820 		if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
    821 			return;
    822 
    823 		aprint_error_dev(sc->sc_dev,
    824 		    "uvscom_intr: abnormal status: %s\n",
    825 		    usbd_errstr(status));
    826 		usbd_clear_endpoint_stall_async(sc->sc_intr_pipe);
    827 		return;
    828 	}
    829 
    830 	DPRINTFN(2, ("%s: uvscom status = %02x %02x\n",
    831 		 device_xname(sc->sc_dev), buf[0], buf[1]));
    832 
    833 	sc->sc_lsr = sc->sc_msr = 0;
    834 	sc->sc_usr = buf[1];
    835 
    836 	pstatus = buf[0];
    837 	if (ISSET(pstatus, UVSCOM_TXRDY))
    838 		SET(sc->sc_lsr, ULSR_TXRDY);
    839 	if (ISSET(pstatus, UVSCOM_RXRDY))
    840 		SET(sc->sc_lsr, ULSR_RXRDY);
    841 
    842 	pstatus = buf[1];
    843 	if (ISSET(pstatus, UVSCOM_CTS))
    844 		SET(sc->sc_msr, UMSR_CTS);
    845 	if (ISSET(pstatus, UVSCOM_DSR))
    846 		SET(sc->sc_msr, UMSR_DSR);
    847 	if (ISSET(pstatus, UVSCOM_DCD))
    848 		SET(sc->sc_msr, UMSR_DCD);
    849 
    850 	ucom_status_change(device_private(sc->sc_subdev));
    851 }
    852 
    853 Static void
    854 uvscom_get_status(void *addr, int portno, u_char *lsr, u_char *msr)
    855 {
    856 	struct uvscom_softc *sc = addr;
    857 
    858 	if (lsr != NULL)
    859 		*lsr = sc->sc_lsr;
    860 	if (msr != NULL)
    861 		*msr = sc->sc_msr;
    862 }
    863 
    864