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uvscom.c revision 1.18
      1 /*	$NetBSD: uvscom.c,v 1.18 2006/10/12 01:32:00 christos 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 1.18 2006/10/12 01:32:00 christos Exp $");
     39 
     40 #include <sys/param.h>
     41 #include <sys/systm.h>
     42 #include <sys/kernel.h>
     43 #include <sys/malloc.h>
     44 #include <sys/fcntl.h>
     45 #include <sys/conf.h>
     46 #include <sys/tty.h>
     47 #include <sys/file.h>
     48 #if defined(__FreeBSD__)
     49 #include <sys/bus.h>
     50 #include <sys/ioccom.h>
     51 #if __FreeBSD_version >= 500014
     52 #include <sys/selinfo.h>
     53 #else
     54 #include <sys/select.h>
     55 #endif
     56 #else
     57 #include <sys/ioctl.h>
     58 #include <sys/device.h>
     59 #endif
     60 #include <sys/proc.h>
     61 #include <sys/poll.h>
     62 
     63 #include <dev/usb/usb.h>
     64 #include <dev/usb/usbcdc.h>
     65 
     66 #include <dev/usb/usbdi.h>
     67 #include <dev/usb/usbdi_util.h>
     68 #include <dev/usb/usbdevs.h>
     69 #include <dev/usb/usb_quirks.h>
     70 
     71 #include <dev/usb/ucomvar.h>
     72 
     73 #ifdef UVSCOM_DEBUG
     74 static int	uvscomdebug = 1;
     75 
     76 #if defined(__FreeBSD__)
     77 #include <sys/sysctl.h>
     78 
     79 SYSCTL_DECL(_debug_usb);
     80 SYSCTL_INT(_debug_usb, OID_AUTO, uvscom, CTLFLAG_RW,
     81 	   &uvscomdebug, 0, "uvscom debug level");
     82 
     83 #endif
     84 
     85 #define DPRINTFN(n, x)  do { \
     86 				if (uvscomdebug > (n)) \
     87 					logprintf x; \
     88 			} while (0)
     89 #else
     90 #define DPRINTFN(n, x)
     91 #endif
     92 #define DPRINTF(x) DPRINTFN(0, x)
     93 
     94 #if defined(__FreeBSD__)
     95 #define UVSCOM_MODVER		1	/* module version */
     96 #endif
     97 
     98 #define	UVSCOM_CONFIG_INDEX	0
     99 #define	UVSCOM_IFACE_INDEX	0
    100 
    101 #define UVSCOM_INTR_INTERVAL	100	/* mS */
    102 
    103 #define UVSCOM_UNIT_WAIT	5
    104 
    105 /* Request */
    106 #define UVSCOM_SET_SPEED	0x10
    107 #define UVSCOM_LINE_CTL		0x11
    108 #define UVSCOM_SET_PARAM	0x12
    109 #define UVSCOM_READ_STATUS	0xd0
    110 #define UVSCOM_SHUTDOWN		0xe0
    111 
    112 /* UVSCOM_SET_SPEED parameters */
    113 #define UVSCOM_SPEED_150BPS	0x00
    114 #define UVSCOM_SPEED_300BPS	0x01
    115 #define UVSCOM_SPEED_600BPS	0x02
    116 #define UVSCOM_SPEED_1200BPS	0x03
    117 #define UVSCOM_SPEED_2400BPS	0x04
    118 #define UVSCOM_SPEED_4800BPS	0x05
    119 #define UVSCOM_SPEED_9600BPS	0x06
    120 #define UVSCOM_SPEED_19200BPS	0x07
    121 #define UVSCOM_SPEED_38400BPS	0x08
    122 #define UVSCOM_SPEED_57600BPS	0x09
    123 #define UVSCOM_SPEED_115200BPS	0x0a
    124 
    125 /* UVSCOM_LINE_CTL parameters */
    126 #define UVSCOM_BREAK		0x40
    127 #define UVSCOM_RTS		0x02
    128 #define UVSCOM_DTR		0x01
    129 #define UVSCOM_LINE_INIT	0x08
    130 
    131 /* UVSCOM_SET_PARAM parameters */
    132 #define UVSCOM_DATA_MASK	0x03
    133 #define UVSCOM_DATA_BIT_8	0x03
    134 #define UVSCOM_DATA_BIT_7	0x02
    135 #define UVSCOM_DATA_BIT_6	0x01
    136 #define UVSCOM_DATA_BIT_5	0x00
    137 
    138 #define UVSCOM_STOP_MASK	0x04
    139 #define UVSCOM_STOP_BIT_2	0x04
    140 #define UVSCOM_STOP_BIT_1	0x00
    141 
    142 #define UVSCOM_PARITY_MASK	0x18
    143 #define UVSCOM_PARITY_EVEN	0x18
    144 #if 0
    145 #define UVSCOM_PARITY_UNK	0x10
    146 #endif
    147 #define UVSCOM_PARITY_ODD	0x08
    148 #define UVSCOM_PARITY_NONE	0x00
    149 
    150 /* Status bits */
    151 #define UVSCOM_TXRDY		0x04
    152 #define UVSCOM_RXRDY		0x01
    153 
    154 #define UVSCOM_DCD		0x08
    155 #define UVSCOM_NOCARD		0x04
    156 #define UVSCOM_DSR		0x02
    157 #define UVSCOM_CTS		0x01
    158 #define UVSCOM_USTAT_MASK	(UVSCOM_NOCARD | UVSCOM_DSR | UVSCOM_CTS)
    159 
    160 struct	uvscom_softc {
    161 	USBBASEDEVICE		sc_dev;		/* base device */
    162 	usbd_device_handle	sc_udev;	/* USB device */
    163 	usbd_interface_handle	sc_iface;	/* interface */
    164 	int			sc_iface_number;/* interface number */
    165 
    166 	usbd_interface_handle	sc_intr_iface;	/* interrupt interface */
    167 	int			sc_intr_number;	/* interrupt number */
    168 	usbd_pipe_handle	sc_intr_pipe;	/* interrupt pipe */
    169 	u_char			*sc_intr_buf;	/* interrupt buffer */
    170 	int			sc_isize;
    171 
    172 	u_char			sc_dtr;		/* current DTR state */
    173 	u_char			sc_rts;		/* current RTS state */
    174 
    175 	u_char			sc_lsr;		/* Local status register */
    176 	u_char			sc_msr;		/* uvscom status register */
    177 
    178 	uint16_t		sc_lcr;		/* Line control */
    179 	u_char			sc_usr;		/* unit status */
    180 
    181 	device_ptr_t		sc_subdev;	/* ucom device */
    182 	u_char			sc_dying;	/* disconnecting */
    183 };
    184 
    185 /*
    186  * These are the maximum number of bytes transferred per frame.
    187  * The output buffer size cannot be increased due to the size encoding.
    188  */
    189 #define UVSCOMIBUFSIZE 512
    190 #define UVSCOMOBUFSIZE 64
    191 
    192 Static	usbd_status uvscom_readstat(struct uvscom_softc *);
    193 Static	usbd_status uvscom_shutdown(struct uvscom_softc *);
    194 Static	usbd_status uvscom_reset(struct uvscom_softc *);
    195 Static	usbd_status uvscom_set_line_coding(struct uvscom_softc *,
    196 					   uint16_t, uint16_t);
    197 Static	usbd_status uvscom_set_line(struct uvscom_softc *, uint16_t);
    198 Static	usbd_status uvscom_set_crtscts(struct uvscom_softc *);
    199 Static	void uvscom_get_status(void *, int, u_char *, u_char *);
    200 Static	void uvscom_dtr(struct uvscom_softc *, int);
    201 Static	void uvscom_rts(struct uvscom_softc *, int);
    202 Static	void uvscom_break(struct uvscom_softc *, int);
    203 
    204 Static	void uvscom_set(void *, int, int, int);
    205 Static	void uvscom_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
    206 Static	int  uvscom_param(void *, int, struct termios *);
    207 Static	int  uvscom_open(void *, int);
    208 Static	void uvscom_close(void *, int);
    209 
    210 struct ucom_methods uvscom_methods = {
    211 	uvscom_get_status,
    212 	uvscom_set,
    213 	uvscom_param,
    214 	NULL, /* uvscom_ioctl, TODO */
    215 	uvscom_open,
    216 	uvscom_close,
    217 	NULL,
    218 	NULL
    219 };
    220 
    221 static const struct usb_devno uvscom_devs [] = {
    222 	/* SUNTAC U-Cable type A4 */
    223 	{ USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_AS144L4 },
    224 	/* SUNTAC U-Cable type D2 */
    225 	{ USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_DS96L },
    226 	/* SUNTAC U-Cable type P1 */
    227 	{ USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_PS64P1 },
    228 	/* SUNTAC Slipper U  */
    229 	{ USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_VS10U },
    230 	/* SUNTAC Ir-Trinity */
    231 	{ USB_VENDOR_SUNTAC, USB_PRODUCT_SUNTAC_IS96U },
    232 };
    233 #define uvscom_lookup(v, p) usb_lookup(uvscom_devs, v, p)
    234 
    235 USB_DECLARE_DRIVER(uvscom);
    236 
    237 #ifdef __FreeBSD__
    238 Static device_probe_t uvscom_match;
    239 Static device_attach_t uvscom_attach;
    240 Static device_detach_t uvscom_detach;
    241 
    242 Static device_method_t uvscom_methods[] = {
    243 	/* Device interface */
    244 	DEVMETHOD(device_probe, uvscom_match),
    245 	DEVMETHOD(device_attach, uvscom_attach),
    246 	DEVMETHOD(device_detach, uvscom_detach),
    247 	{ 0, 0 }
    248 };
    249 
    250 Static driver_t uvscom_driver = {
    251 	"usio",
    252 	uvscom_methods,
    253 	sizeof (struct uvscom_softc)
    254 };
    255 
    256 DRIVER_MODULE(uvscom, uhub, uvscom_driver, ucom_devclass, usbd_driver_load, 0);
    257 MODULE_DEPEND(uvscom, ucom, UCOM_MINVER, UCOM_PREFVER, UCOM_MAXVER);
    258 MODULE_VERSION(uvscom, UVSCOM_MODVER);
    259 #endif
    260 
    261 USB_MATCH(uvscom)
    262 {
    263 	USB_MATCH_START(uvscom, uaa);
    264 
    265 	if (uaa->iface != NULL)
    266 		return (UMATCH_NONE);
    267 
    268 	return (uvscom_lookup(uaa->vendor, uaa->product) != NULL ?
    269 		UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
    270 }
    271 
    272 USB_ATTACH(uvscom)
    273 {
    274 	USB_ATTACH_START(uvscom, sc, uaa);
    275 	usbd_device_handle dev = uaa->device;
    276 	usb_config_descriptor_t *cdesc;
    277 	usb_interface_descriptor_t *id;
    278 	usb_endpoint_descriptor_t *ed;
    279 	char *devinfop;
    280 	const char *devname = USBDEVNAME(sc->sc_dev);
    281 	usbd_status err;
    282 	int i;
    283 	struct ucom_attach_args uca;
    284 
    285 	devinfop = usbd_devinfo_alloc(dev, 0);
    286         USB_ATTACH_SETUP;
    287         printf("%s: %s\n", devname, devinfop);
    288 	usbd_devinfo_free(devinfop);
    289 
    290         sc->sc_udev = dev;
    291 
    292 	DPRINTF(("uvscom attach: sc = %p\n", sc));
    293 
    294 	/* initialize endpoints */
    295 	uca.bulkin = uca.bulkout = -1;
    296 	sc->sc_intr_number = -1;
    297 	sc->sc_intr_pipe = NULL;
    298 
    299 	/* Move the device into the configured state. */
    300 	err = usbd_set_config_index(dev, UVSCOM_CONFIG_INDEX, 1);
    301 	if (err) {
    302 		printf("%s: failed to set configuration, err=%s\n",
    303 			devname, usbd_errstr(err));
    304 		sc->sc_dying = 1;
    305 		USB_ATTACH_ERROR_RETURN;
    306 	}
    307 
    308 	/* get the config descriptor */
    309 	cdesc = usbd_get_config_descriptor(sc->sc_udev);
    310 
    311 	if (cdesc == NULL) {
    312 		printf("%s: failed to get configuration descriptor\n",
    313 			USBDEVNAME(sc->sc_dev));
    314 		sc->sc_dying = 1;
    315 		USB_ATTACH_ERROR_RETURN;
    316 	}
    317 
    318 	/* get the common interface */
    319 	err = usbd_device2interface_handle(dev, UVSCOM_IFACE_INDEX,
    320 					   &sc->sc_iface);
    321 	if (err) {
    322 		printf("%s: failed to get interface, err=%s\n",
    323 			devname, usbd_errstr(err));
    324 		sc->sc_dying = 1;
    325 		USB_ATTACH_ERROR_RETURN;
    326 	}
    327 
    328 	id = usbd_get_interface_descriptor(sc->sc_iface);
    329 	sc->sc_iface_number = id->bInterfaceNumber;
    330 
    331 	/* Find endpoints */
    332 	for (i = 0; i < id->bNumEndpoints; i++) {
    333 		ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
    334 		if (ed == NULL) {
    335 			printf("%s: no endpoint descriptor for %d\n",
    336 				USBDEVNAME(sc->sc_dev), i);
    337 			sc->sc_dying = 1;
    338 			USB_ATTACH_ERROR_RETURN;
    339 		}
    340 
    341 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    342 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
    343 			uca.bulkin = ed->bEndpointAddress;
    344 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
    345 			   UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
    346 			uca.bulkout = ed->bEndpointAddress;
    347 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    348 			   UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
    349 			sc->sc_intr_number = ed->bEndpointAddress;
    350 			sc->sc_isize = UGETW(ed->wMaxPacketSize);
    351 		}
    352 	}
    353 
    354 	if (uca.bulkin == -1) {
    355 		printf("%s: Could not find data bulk in\n",
    356 			USBDEVNAME(sc->sc_dev));
    357 		sc->sc_dying = 1;
    358 		USB_ATTACH_ERROR_RETURN;
    359 	}
    360 	if (uca.bulkout == -1) {
    361 		printf("%s: Could not find data bulk out\n",
    362 			USBDEVNAME(sc->sc_dev));
    363 		sc->sc_dying = 1;
    364 		USB_ATTACH_ERROR_RETURN;
    365 	}
    366 	if (sc->sc_intr_number == -1) {
    367 		printf("%s: Could not find interrupt in\n",
    368 			USBDEVNAME(sc->sc_dev));
    369 		sc->sc_dying = 1;
    370 		USB_ATTACH_ERROR_RETURN;
    371 	}
    372 
    373 	sc->sc_dtr = sc->sc_rts = 0;
    374 	sc->sc_lcr = UVSCOM_LINE_INIT;
    375 
    376 	uca.portno = UCOM_UNK_PORTNO;
    377 	/* bulkin, bulkout set above */
    378 	uca.ibufsize = UVSCOMIBUFSIZE;
    379 	uca.obufsize = UVSCOMOBUFSIZE;
    380 	uca.ibufsizepad = UVSCOMIBUFSIZE;
    381 	uca.opkthdrlen = 0;
    382 	uca.device = dev;
    383 	uca.iface = sc->sc_iface;
    384 	uca.methods = &uvscom_methods;
    385 	uca.arg = sc;
    386 	uca.info = NULL;
    387 
    388 	err = uvscom_reset(sc);
    389 
    390 	if (err) {
    391 		printf("%s: reset failed, %s\n", USBDEVNAME(sc->sc_dev),
    392 			usbd_errstr(err));
    393 		sc->sc_dying = 1;
    394 		USB_ATTACH_ERROR_RETURN;
    395 	}
    396 
    397 	DPRINTF(("uvscom: in = 0x%x out = 0x%x intr = 0x%x\n",
    398 		 uca.bulkin, uca.bulkout, sc->sc_intr_number));
    399 
    400 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
    401 			   USBDEV(sc->sc_dev));
    402 
    403 	DPRINTF(("uplcom: in=0x%x out=0x%x intr=0x%x\n",
    404 			uca.bulkin, uca.bulkout, sc->sc_intr_number ));
    405 	sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca,
    406 					    ucomprint, ucomsubmatch);
    407 
    408 	USB_ATTACH_SUCCESS_RETURN;
    409 }
    410 
    411 USB_DETACH(uvscom)
    412 {
    413 	USB_DETACH_START(uvscom, sc);
    414 	int rv = 0;
    415 
    416 	DPRINTF(("uvscom_detach: sc = %p\n", sc));
    417 
    418 	sc->sc_dying = 1;
    419 
    420 	if (sc->sc_intr_pipe != NULL) {
    421 		usbd_abort_pipe(sc->sc_intr_pipe);
    422 		usbd_close_pipe(sc->sc_intr_pipe);
    423 		free(sc->sc_intr_buf, M_USBDEV);
    424 		sc->sc_intr_pipe = NULL;
    425 	}
    426 
    427 	sc->sc_dying = 1;
    428 	if (sc->sc_subdev != NULL) {
    429 		rv = config_detach(sc->sc_subdev, flags);
    430 		sc->sc_subdev = NULL;
    431 	}
    432 
    433 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
    434 			   USBDEV(sc->sc_dev));
    435 
    436 	return (rv);
    437 }
    438 
    439 int
    440 uvscom_activate(device_ptr_t self, enum devact act)
    441 {
    442 	struct uvscom_softc *sc = (struct uvscom_softc *)self;
    443 	int rv = 0;
    444 
    445 	switch (act) {
    446 	case DVACT_ACTIVATE:
    447 		return (EOPNOTSUPP);
    448 
    449 	case DVACT_DEACTIVATE:
    450 		if (sc->sc_subdev != NULL)
    451 			rv = config_deactivate(sc->sc_subdev);
    452 		sc->sc_dying = 1;
    453 		break;
    454 	}
    455 	return (rv);
    456 }
    457 
    458 Static usbd_status
    459 uvscom_readstat(struct uvscom_softc *sc)
    460 {
    461 	usb_device_request_t req;
    462 	usbd_status err;
    463 	uint16_t r;
    464 
    465 	DPRINTF(("%s: send readstat\n", USBDEVNAME(sc->sc_dev)));
    466 
    467 	req.bmRequestType = UT_READ_VENDOR_DEVICE;
    468 	req.bRequest = UVSCOM_READ_STATUS;
    469 	USETW(req.wValue, 0);
    470 	USETW(req.wIndex, 0);
    471 	USETW(req.wLength, 2);
    472 
    473 	err = usbd_do_request(sc->sc_udev, &req, &r);
    474 	if (err) {
    475 		printf("%s: uvscom_readstat: %s\n",
    476 		       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
    477 		return (err);
    478 	}
    479 
    480 	DPRINTF(("%s: uvscom_readstat: r = %d\n",
    481 		 USBDEVNAME(sc->sc_dev), r));
    482 
    483 	return (USBD_NORMAL_COMPLETION);
    484 }
    485 
    486 Static usbd_status
    487 uvscom_shutdown(struct uvscom_softc *sc)
    488 {
    489 	usb_device_request_t req;
    490 	usbd_status err;
    491 
    492 	DPRINTF(("%s: send shutdown\n", USBDEVNAME(sc->sc_dev)));
    493 
    494 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    495 	req.bRequest = UVSCOM_SHUTDOWN;
    496 	USETW(req.wValue, 0);
    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 		printf("%s: uvscom_shutdown: %s\n",
    503 		       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
    504 		return (err);
    505 	}
    506 
    507 	return (USBD_NORMAL_COMPLETION);
    508 }
    509 
    510 Static usbd_status
    511 uvscom_reset(struct uvscom_softc *sc __unused)
    512 {
    513 	DPRINTF(("%s: uvscom_reset\n", USBDEVNAME(sc->sc_dev)));
    514 
    515 	return (USBD_NORMAL_COMPLETION);
    516 }
    517 
    518 Static usbd_status
    519 uvscom_set_crtscts(struct uvscom_softc *sc __unused)
    520 {
    521 	DPRINTF(("%s: uvscom_set_crtscts\n", USBDEVNAME(sc->sc_dev)));
    522 
    523 	return (USBD_NORMAL_COMPLETION);
    524 }
    525 
    526 Static usbd_status
    527 uvscom_set_line(struct uvscom_softc *sc, uint16_t line)
    528 {
    529 	usb_device_request_t req;
    530 	usbd_status err;
    531 
    532 	DPRINTF(("%s: uvscom_set_line: %04x\n",
    533 		 USBDEVNAME(sc->sc_dev), line));
    534 
    535 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    536 	req.bRequest = UVSCOM_LINE_CTL;
    537 	USETW(req.wValue, line);
    538 	USETW(req.wIndex, 0);
    539 	USETW(req.wLength, 0);
    540 
    541 	err = usbd_do_request(sc->sc_udev, &req, NULL);
    542 	if (err) {
    543 		printf("%s: uvscom_set_line: %s\n",
    544 		       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
    545 		return (err);
    546 	}
    547 
    548 	return (USBD_NORMAL_COMPLETION);
    549 }
    550 
    551 Static usbd_status
    552 uvscom_set_line_coding(struct uvscom_softc *sc, uint16_t lsp, uint16_t ls)
    553 {
    554 	usb_device_request_t req;
    555 	usbd_status err;
    556 
    557 	DPRINTF(("%s: uvscom_set_line_coding: %02x %02x\n",
    558 		 USBDEVNAME(sc->sc_dev), lsp, ls));
    559 
    560 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    561 	req.bRequest = UVSCOM_SET_SPEED;
    562 	USETW(req.wValue, lsp);
    563 	USETW(req.wIndex, 0);
    564 	USETW(req.wLength, 0);
    565 
    566 	err = usbd_do_request(sc->sc_udev, &req, NULL);
    567 	if (err) {
    568 		printf("%s: uvscom_set_line_coding: %s\n",
    569 		       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
    570 		return (err);
    571 	}
    572 
    573 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    574 	req.bRequest = UVSCOM_SET_PARAM;
    575 	USETW(req.wValue, ls);
    576 	USETW(req.wIndex, 0);
    577 	USETW(req.wLength, 0);
    578 
    579 	err = usbd_do_request(sc->sc_udev, &req, NULL);
    580 	if (err) {
    581 		printf("%s: uvscom_set_line_coding: %s\n",
    582 		       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
    583 		return (err);
    584 	}
    585 
    586 	return (USBD_NORMAL_COMPLETION);
    587 }
    588 
    589 Static void
    590 uvscom_dtr(struct uvscom_softc *sc, int onoff)
    591 {
    592 	DPRINTF(("%s: uvscom_dtr: onoff = %d\n",
    593 		 USBDEVNAME(sc->sc_dev), onoff));
    594 
    595 	if (sc->sc_dtr == onoff)
    596 		return;			/* no change */
    597 
    598 	sc->sc_dtr = onoff;
    599 
    600 	if (onoff)
    601 		SET(sc->sc_lcr, UVSCOM_DTR);
    602 	else
    603 		CLR(sc->sc_lcr, UVSCOM_DTR);
    604 
    605 	uvscom_set_line(sc, sc->sc_lcr);
    606 }
    607 
    608 Static void
    609 uvscom_rts(struct uvscom_softc *sc, int onoff)
    610 {
    611 	DPRINTF(("%s: uvscom_rts: onoff = %d\n",
    612 		 USBDEVNAME(sc->sc_dev), onoff));
    613 
    614 	if (sc->sc_rts == onoff)
    615 		return;			/* no change */
    616 
    617 	sc->sc_rts = onoff;
    618 
    619 	if (onoff)
    620 		SET(sc->sc_lcr, UVSCOM_RTS);
    621 	else
    622 		CLR(sc->sc_lcr, UVSCOM_RTS);
    623 
    624 	uvscom_set_line(sc, sc->sc_lcr);
    625 }
    626 
    627 Static void
    628 uvscom_break(struct uvscom_softc *sc, int onoff)
    629 {
    630 	DPRINTF(("%s: uvscom_break: onoff = %d\n",
    631 		 USBDEVNAME(sc->sc_dev), onoff));
    632 
    633 	if (onoff)
    634 		uvscom_set_line(sc, SET(sc->sc_lcr, UVSCOM_BREAK));
    635 }
    636 
    637 Static void
    638 uvscom_set(void *addr, int portno __unused, int reg, int onoff)
    639 {
    640 	struct uvscom_softc *sc = addr;
    641 
    642 	switch (reg) {
    643 	case UCOM_SET_DTR:
    644 		uvscom_dtr(sc, onoff);
    645 		break;
    646 	case UCOM_SET_RTS:
    647 		uvscom_rts(sc, onoff);
    648 		break;
    649 	case UCOM_SET_BREAK:
    650 		uvscom_break(sc, onoff);
    651 		break;
    652 	default:
    653 		break;
    654 	}
    655 }
    656 
    657 Static int
    658 uvscom_param(void *addr, int portno __unused, struct termios *t)
    659 {
    660 	struct uvscom_softc *sc = addr;
    661 	usbd_status err;
    662 	uint16_t lsp;
    663 	uint16_t ls;
    664 
    665 	DPRINTF(("%s: uvscom_param: sc = %p\n",
    666 		 USBDEVNAME(sc->sc_dev), sc));
    667 
    668 	ls = 0;
    669 
    670 	switch (t->c_ospeed) {
    671 	case B150:
    672 		lsp = UVSCOM_SPEED_150BPS;
    673 		break;
    674 	case B300:
    675 		lsp = UVSCOM_SPEED_300BPS;
    676 		break;
    677 	case B600:
    678 		lsp = UVSCOM_SPEED_600BPS;
    679 		break;
    680 	case B1200:
    681 		lsp = UVSCOM_SPEED_1200BPS;
    682 		break;
    683 	case B2400:
    684 		lsp = UVSCOM_SPEED_2400BPS;
    685 		break;
    686 	case B4800:
    687 		lsp = UVSCOM_SPEED_4800BPS;
    688 		break;
    689 	case B9600:
    690 		lsp = UVSCOM_SPEED_9600BPS;
    691 		break;
    692 	case B19200:
    693 		lsp = UVSCOM_SPEED_19200BPS;
    694 		break;
    695 	case B38400:
    696 		lsp = UVSCOM_SPEED_38400BPS;
    697 		break;
    698 	case B57600:
    699 		lsp = UVSCOM_SPEED_57600BPS;
    700 		break;
    701 	case B115200:
    702 		lsp = UVSCOM_SPEED_115200BPS;
    703 		break;
    704 	default:
    705 		return (EIO);
    706 	}
    707 
    708 	if (ISSET(t->c_cflag, CSTOPB))
    709 		SET(ls, UVSCOM_STOP_BIT_2);
    710 	else
    711 		SET(ls, UVSCOM_STOP_BIT_1);
    712 
    713 	if (ISSET(t->c_cflag, PARENB)) {
    714 		if (ISSET(t->c_cflag, PARODD))
    715 			SET(ls, UVSCOM_PARITY_ODD);
    716 		else
    717 			SET(ls, UVSCOM_PARITY_EVEN);
    718 	} else
    719 		SET(ls, UVSCOM_PARITY_NONE);
    720 
    721 	switch (ISSET(t->c_cflag, CSIZE)) {
    722 	case CS5:
    723 		SET(ls, UVSCOM_DATA_BIT_5);
    724 		break;
    725 	case CS6:
    726 		SET(ls, UVSCOM_DATA_BIT_6);
    727 		break;
    728 	case CS7:
    729 		SET(ls, UVSCOM_DATA_BIT_7);
    730 		break;
    731 	case CS8:
    732 		SET(ls, UVSCOM_DATA_BIT_8);
    733 		break;
    734 	default:
    735 		return (EIO);
    736 	}
    737 
    738 	err = uvscom_set_line_coding(sc, lsp, ls);
    739 	if (err)
    740 		return (EIO);
    741 
    742 	if (ISSET(t->c_cflag, CRTSCTS)) {
    743 		err = uvscom_set_crtscts(sc);
    744 		if (err)
    745 			return (EIO);
    746 	}
    747 
    748 	return (0);
    749 }
    750 
    751 Static int
    752 uvscom_open(void *addr, int portno __unused)
    753 {
    754 	struct uvscom_softc *sc = addr;
    755 	int err;
    756 	int i;
    757 
    758 	if (sc->sc_dying)
    759 		return (EIO);
    760 
    761 	DPRINTF(("uvscom_open: sc = %p\n", sc));
    762 
    763 	if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) {
    764 		DPRINTF(("uvscom_open: open interrupt pipe.\n"));
    765 
    766 		sc->sc_usr = 0;		/* clear unit status */
    767 
    768 		err = uvscom_readstat(sc);
    769 		if (err) {
    770 			DPRINTF(("%s: uvscom_open: readstat faild\n",
    771 				 USBDEVNAME(sc->sc_dev)));
    772 			return (EIO);
    773 		}
    774 
    775 		sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
    776 		err = usbd_open_pipe_intr(sc->sc_iface,
    777 					  sc->sc_intr_number,
    778 					  USBD_SHORT_XFER_OK,
    779 					  &sc->sc_intr_pipe,
    780 					  sc,
    781 					  sc->sc_intr_buf,
    782 					  sc->sc_isize,
    783 					  uvscom_intr,
    784 					  UVSCOM_INTR_INTERVAL);
    785 		if (err) {
    786 			printf("%s: cannot open interrupt pipe (addr %d)\n",
    787 				 USBDEVNAME(sc->sc_dev),
    788 				 sc->sc_intr_number);
    789 			return (EIO);
    790 		}
    791 	} else {
    792 		DPRINTF(("uvscom_open: did not open interrupt pipe.\n"));
    793 	}
    794 
    795 	if ((sc->sc_usr & UVSCOM_USTAT_MASK) == 0) {
    796 		/* unit is not ready */
    797 
    798 		for (i = UVSCOM_UNIT_WAIT; i > 0; --i) {
    799 			tsleep(&err, TTIPRI, "uvsop", hz);	/* XXX */
    800 			if (ISSET(sc->sc_usr, UVSCOM_USTAT_MASK))
    801 				break;
    802 		}
    803 		if (i == 0) {
    804 			DPRINTF(("%s: unit is not ready\n",
    805 				 USBDEVNAME(sc->sc_dev)));
    806 			return (EIO);
    807 		}
    808 
    809 		/* check PC card was inserted */
    810 		if (ISSET(sc->sc_usr, UVSCOM_NOCARD)) {
    811 			DPRINTF(("%s: no card\n",
    812 				 USBDEVNAME(sc->sc_dev)));
    813 			return (EIO);
    814 		}
    815 	}
    816 
    817 	return (0);
    818 }
    819 
    820 Static void
    821 uvscom_close(void *addr, int portno __unused)
    822 {
    823 	struct uvscom_softc *sc = addr;
    824 	int err;
    825 
    826 	if (sc->sc_dying)
    827 		return;
    828 
    829 	DPRINTF(("uvscom_close: close\n"));
    830 
    831 	uvscom_shutdown(sc);
    832 
    833 	if (sc->sc_intr_pipe != NULL) {
    834 		err = usbd_abort_pipe(sc->sc_intr_pipe);
    835 		if (err)
    836 			printf("%s: abort interrupt pipe failed: %s\n",
    837 				USBDEVNAME(sc->sc_dev),
    838 					   usbd_errstr(err));
    839 		err = usbd_close_pipe(sc->sc_intr_pipe);
    840 		if (err)
    841 			printf("%s: close interrupt pipe failed: %s\n",
    842 				USBDEVNAME(sc->sc_dev),
    843 					   usbd_errstr(err));
    844 		free(sc->sc_intr_buf, M_USBDEV);
    845 		sc->sc_intr_pipe = NULL;
    846 	}
    847 }
    848 
    849 Static void
    850 uvscom_intr(usbd_xfer_handle xfer __unused, usbd_private_handle priv,
    851     usbd_status status)
    852 {
    853 	struct uvscom_softc *sc = priv;
    854 	u_char *buf = sc->sc_intr_buf;
    855 	u_char pstatus;
    856 
    857 	if (sc->sc_dying)
    858 		return;
    859 
    860 	if (status != USBD_NORMAL_COMPLETION) {
    861 		if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
    862 			return;
    863 
    864 		printf("%s: uvscom_intr: abnormal status: %s\n",
    865 			USBDEVNAME(sc->sc_dev),
    866 			usbd_errstr(status));
    867 		usbd_clear_endpoint_stall_async(sc->sc_intr_pipe);
    868 		return;
    869 	}
    870 
    871 	DPRINTFN(2, ("%s: uvscom status = %02x %02x\n",
    872 		 USBDEVNAME(sc->sc_dev), buf[0], buf[1]));
    873 
    874 	sc->sc_lsr = sc->sc_msr = 0;
    875 	sc->sc_usr = buf[1];
    876 
    877 	pstatus = buf[0];
    878 	if (ISSET(pstatus, UVSCOM_TXRDY))
    879 		SET(sc->sc_lsr, ULSR_TXRDY);
    880 	if (ISSET(pstatus, UVSCOM_RXRDY))
    881 		SET(sc->sc_lsr, ULSR_RXRDY);
    882 
    883 	pstatus = buf[1];
    884 	if (ISSET(pstatus, UVSCOM_CTS))
    885 		SET(sc->sc_msr, UMSR_CTS);
    886 	if (ISSET(pstatus, UVSCOM_DSR))
    887 		SET(sc->sc_msr, UMSR_DSR);
    888 	if (ISSET(pstatus, UVSCOM_DCD))
    889 		SET(sc->sc_msr, UMSR_DCD);
    890 
    891 	ucom_status_change((struct ucom_softc *) sc->sc_subdev);
    892 }
    893 
    894 Static void
    895 uvscom_get_status(void *addr, int portno __unused, u_char *lsr, u_char *msr)
    896 {
    897 	struct uvscom_softc *sc = addr;
    898 
    899 	if (lsr != NULL)
    900 		*lsr = sc->sc_lsr;
    901 	if (msr != NULL)
    902 		*msr = sc->sc_msr;
    903 }
    904 
    905