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uplcom.c revision 1.62
      1 /*	$NetBSD: uplcom.c,v 1.62 2008/02/21 04:38:43 rafal Exp $	*/
      2 /*
      3  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      4  * All rights reserved.
      5  *
      6  * This code is derived from software contributed to The NetBSD Foundation
      7  * by Ichiro FUKUHARA (ichiro (at) ichiro.org).
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *        This product includes software developed by the NetBSD
     20  *        Foundation, Inc. and its contributors.
     21  * 4. Neither the name of The NetBSD Foundation nor the names of its
     22  *    contributors may be used to endorse or promote products derived
     23  *    from this software without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     26  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 
     38 /*
     39  * General information: http://www.prolific.com.tw/fr_pl2303.htm
     40  * http://www.hitachi-hitec.com/jyouhou/prolific/2303.pdf
     41  */
     42 
     43 #include <sys/cdefs.h>
     44 __KERNEL_RCSID(0, "$NetBSD: uplcom.c,v 1.62 2008/02/21 04:38:43 rafal Exp $");
     45 
     46 #include <sys/param.h>
     47 #include <sys/systm.h>
     48 #include <sys/kernel.h>
     49 #include <sys/malloc.h>
     50 #include <sys/ioctl.h>
     51 #include <sys/conf.h>
     52 #include <sys/tty.h>
     53 #include <sys/file.h>
     54 #include <sys/select.h>
     55 #include <sys/proc.h>
     56 #include <sys/device.h>
     57 #include <sys/poll.h>
     58 
     59 #include <dev/usb/usb.h>
     60 #include <dev/usb/usbcdc.h>
     61 
     62 #include <dev/usb/usbdi.h>
     63 #include <dev/usb/usbdi_util.h>
     64 #include <dev/usb/usbdevs.h>
     65 #include <dev/usb/usb_quirks.h>
     66 
     67 #include <dev/usb/ucomvar.h>
     68 
     69 #ifdef UPLCOM_DEBUG
     70 #define DPRINTFN(n, x)  if (uplcomdebug > (n)) logprintf x
     71 int	uplcomdebug = 0;
     72 #else
     73 #define DPRINTFN(n, x)
     74 #endif
     75 #define DPRINTF(x) DPRINTFN(0, x)
     76 
     77 #define	UPLCOM_CONFIG_INDEX	0
     78 #define	UPLCOM_IFACE_INDEX	0
     79 #define	UPLCOM_SECOND_IFACE_INDEX	1
     80 
     81 #define	UPLCOM_SET_REQUEST	0x01
     82 #define	UPLCOM_SET_CRTSCTS_0	0x41
     83 #define	UPLCOM_SET_CRTSCTS_HX	0x61
     84 #define RSAQ_STATUS_DSR		0x02
     85 #define RSAQ_STATUS_DCD		0x01
     86 
     87 enum  pl2303_type {
     88 	UPLCOM_TYPE_0,
     89 	UPLCOM_TYPE_HX,
     90 };
     91 
     92 struct	uplcom_softc {
     93 	USBBASEDEVICE		sc_dev;		/* base device */
     94 	usbd_device_handle	sc_udev;	/* USB device */
     95 	usbd_interface_handle	sc_iface;	/* interface */
     96 	int			sc_iface_number;	/* interface number */
     97 
     98 	usbd_interface_handle	sc_intr_iface;	/* interrupt interface */
     99 	int			sc_intr_number;	/* interrupt number */
    100 	usbd_pipe_handle	sc_intr_pipe;	/* interrupt pipe */
    101 	u_char			*sc_intr_buf;	/* interrupt buffer */
    102 	int			sc_isize;
    103 
    104 	usb_cdc_line_state_t	sc_line_state;	/* current line state */
    105 	int			sc_dtr;		/* current DTR state */
    106 	int			sc_rts;		/* current RTS state */
    107 
    108 	device_ptr_t		sc_subdev;	/* ucom device */
    109 
    110 	u_char			sc_dying;	/* disconnecting */
    111 
    112 	u_char			sc_lsr;		/* Local status register */
    113 	u_char			sc_msr;		/* uplcom status register */
    114 
    115 	enum pl2303_type	sc_type;	/* PL2303 chip type */
    116 };
    117 
    118 /*
    119  * These are the maximum number of bytes transferred per frame.
    120  * The output buffer size cannot be increased due to the size encoding.
    121  */
    122 #define UPLCOMIBUFSIZE 256
    123 #define UPLCOMOBUFSIZE 256
    124 
    125 Static	usbd_status uplcom_reset(struct uplcom_softc *);
    126 Static	usbd_status uplcom_set_line_coding(struct uplcom_softc *sc,
    127 					   usb_cdc_line_state_t *state);
    128 Static	usbd_status uplcom_set_crtscts(struct uplcom_softc *);
    129 Static	void uplcom_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
    130 
    131 Static	void uplcom_set(void *, int, int, int);
    132 Static	void uplcom_dtr(struct uplcom_softc *, int);
    133 Static	void uplcom_rts(struct uplcom_softc *, int);
    134 Static	void uplcom_break(struct uplcom_softc *, int);
    135 Static	void uplcom_set_line_state(struct uplcom_softc *);
    136 Static	void uplcom_get_status(void *, int portno, u_char *lsr, u_char *msr);
    137 #if TODO
    138 Static	int  uplcom_ioctl(void *, int, u_long, void *, int, usb_proc_ptr );
    139 #endif
    140 Static	int  uplcom_param(void *, int, struct termios *);
    141 Static	int  uplcom_open(void *, int);
    142 Static	void uplcom_close(void *, int);
    143 Static usbd_status uplcom_vendor_control_write(usbd_device_handle, u_int16_t, u_int16_t);
    144 
    145 struct	ucom_methods uplcom_methods = {
    146 	uplcom_get_status,
    147 	uplcom_set,
    148 	uplcom_param,
    149 	NULL, /* uplcom_ioctl, TODO */
    150 	uplcom_open,
    151 	uplcom_close,
    152 	NULL,
    153 	NULL,
    154 };
    155 
    156 static const struct uplcom_type {
    157       struct usb_devno uplcom_dev;
    158       int32_t	  release;
    159       enum pl2303_type chiptype;
    160 } uplcom_devs[] = {
    161 	/* I/O DATA USB-RSAQ2 */
    162 	{ { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_RSAQ2 },
    163 		-1, UPLCOM_TYPE_0 },
    164 	/* I/O DATA USB-RSAQ3 */
    165 	{ { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_RSAQ3 },
    166 		-1, UPLCOM_TYPE_HX },
    167 	/* I/O DATA USB-RSAQ */
    168 	{ { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBRSAQ },
    169 		-1, UPLCOM_TYPE_0 },
    170 	/* I/O DATA USB-RSAQ5 */
    171 	{ { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBRSAQ5 },
    172 		-1, UPLCOM_TYPE_HX },
    173 	/* PLANEX USB-RS232 URS-03 */
    174 	{ { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC232A },
    175 		-1, UPLCOM_TYPE_0 },
    176 	/* TrendNet TU-S9 */
    177 	{ { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303 },
    178 		0x400, UPLCOM_TYPE_HX },
    179 	/* ST Lab USB-SERIAL-4 */
    180 	{ { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303 },
    181 		0x300, UPLCOM_TYPE_HX },
    182 	/* IOGEAR/ATEN UC-232A */
    183 	{ { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303 },
    184 		-1, UPLCOM_TYPE_0 },
    185 	/* SMART Technologies USB to serial */
    186 	{ { USB_VENDOR_PROLIFIC2, USB_PRODUCT_PROLIFIC2_PL2303 },
    187 		-1, UPLCOM_TYPE_HX },
    188 	/* IOGEAR/ATENTRIPPLITE */
    189 	{ { USB_VENDOR_TRIPPLITE, USB_PRODUCT_TRIPPLITE_U209 },
    190 		0x300, UPLCOM_TYPE_HX },
    191 	{ { USB_VENDOR_TRIPPLITE, USB_PRODUCT_TRIPPLITE_U209 },
    192 		-1, UPLCOM_TYPE_0 },
    193 	/* ELECOM UC-SGT */
    194 	{ { USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_UCSGT },
    195 		-1, UPLCOM_TYPE_0 },
    196 	/* ELECOM UC-SGT0 */
    197 	{ { USB_VENDOR_ELECOM, USB_PRODUCT_ELECOM_UCSGT0 },
    198 		-1, UPLCOM_TYPE_0 },
    199 	/* Panasonic 50" Touch Panel */
    200 	{ { USB_VENDOR_PANASONIC, USB_PRODUCT_PANASONIC_TYTP50P6S },
    201 		-1, UPLCOM_TYPE_0 },
    202 	/* RATOC REX-USB60 */
    203 	{ { USB_VENDOR_RATOC, USB_PRODUCT_RATOC_REXUSB60 },
    204 		-1, UPLCOM_TYPE_0 },
    205 	/* TDK USB-PHS Adapter UHA6400 */
    206 	{ { USB_VENDOR_TDK, USB_PRODUCT_TDK_UHA6400 },
    207 		-1, UPLCOM_TYPE_0 },
    208 	/* TDK USB-PDC Adapter UPA9664 */
    209 	{ { USB_VENDOR_TDK, USB_PRODUCT_TDK_UPA9664 },
    210 		-1, UPLCOM_TYPE_0 },
    211 	/* Sony Ericsson USB Cable */
    212 	{ { USB_VENDOR_SUSTEEN, USB_PRODUCT_SUSTEEN_DCU10 },
    213 		-1, UPLCOM_TYPE_0 },
    214 	/* SOURCENEXT KeikaiDenwa 8 */
    215 	{ { USB_VENDOR_SOURCENEXT, USB_PRODUCT_SOURCENEXT_KEIKAI8 },
    216 		-1, UPLCOM_TYPE_0 },
    217 	/* SOURCENEXT KeikaiDenwa 8 with charger */
    218 	{ { USB_VENDOR_SOURCENEXT, USB_PRODUCT_SOURCENEXT_KEIKAI8_CHG },
    219 		-1, UPLCOM_TYPE_0 },
    220 	/* HAL Corporation Crossam2+USB */
    221 	{ { USB_VENDOR_HAL, USB_PRODUCT_HAL_IMR001 },
    222 		-1, UPLCOM_TYPE_0 },
    223 	/* Sitecom USB to serial cable */
    224 	{ { USB_VENDOR_SITECOM, USB_PRODUCT_SITECOM_CN104 },
    225 		-1, UPLCOM_TYPE_0 },
    226 	/* Pharos USB GPS - Microsoft version */
    227 	{ { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303X },
    228 		-1, UPLCOM_TYPE_0 },
    229 	/* Willcom WS002IN (DD) */
    230 	{ { USB_VENDOR_NETINDEX, USB_PRODUCT_NETINDEX_WS002IN },
    231 		-1, UPLCOM_TYPE_HX },
    232 };
    233 #define uplcom_lookup(v, p) usb_lookup(uplcom_devs, v, p)
    234 
    235 int uplcom_match(device_t, struct cfdata *, void *);
    236 void uplcom_attach(device_t, device_t, void *);
    237 void uplcom_childdet(device_t, device_t);
    238 int uplcom_detach(device_t, int);
    239 int uplcom_activate(device_t, enum devact);
    240 extern struct cfdriver uplcom_cd;
    241 CFATTACH_DECL2(uplcom, sizeof(struct uplcom_softc), uplcom_match,
    242     uplcom_attach, uplcom_detach, uplcom_activate, NULL, uplcom_childdet);
    243 
    244 USB_MATCH(uplcom)
    245 {
    246 	USB_MATCH_START(uplcom, uaa);
    247 
    248 	return (uplcom_lookup(uaa->vendor, uaa->product) != NULL ?
    249 		UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
    250 }
    251 
    252 USB_ATTACH(uplcom)
    253 {
    254 	USB_ATTACH_START(uplcom, sc, uaa);
    255 	usbd_device_handle dev = uaa->device;
    256 	usb_config_descriptor_t *cdesc;
    257 	usb_interface_descriptor_t *id;
    258 	usb_endpoint_descriptor_t *ed;
    259 	char *devinfop;
    260 	char *devname = USBDEVNAME(sc->sc_dev);
    261 	usbd_status err;
    262 	int i;
    263 	struct ucom_attach_args uca;
    264 
    265 	devinfop = usbd_devinfo_alloc(dev, 0);
    266 	USB_ATTACH_SETUP;
    267 	printf("%s: %s\n", devname, devinfop);
    268 	usbd_devinfo_free(devinfop);
    269 
    270         sc->sc_udev = dev;
    271 
    272 	DPRINTF(("\n\nuplcom attach: sc=%p\n", sc));
    273 
    274 	/* initialize endpoints */
    275 	uca.bulkin = uca.bulkout = -1;
    276 	sc->sc_intr_number = -1;
    277 	sc->sc_intr_pipe = NULL;
    278 
    279 	/* Move the device into the configured state. */
    280 	err = usbd_set_config_index(dev, UPLCOM_CONFIG_INDEX, 1);
    281 	if (err) {
    282 		printf("\n%s: failed to set configuration, err=%s\n",
    283 			devname, usbd_errstr(err));
    284 		sc->sc_dying = 1;
    285 		USB_ATTACH_ERROR_RETURN;
    286 	}
    287 
    288 	/* determine chip type */
    289 	for (i = 0; uplcom_devs[i].uplcom_dev.ud_vendor != 0; i++) {
    290 		if (uplcom_devs[i].uplcom_dev.ud_vendor == uaa->vendor &&
    291 		    uplcom_devs[i].uplcom_dev.ud_product == uaa->product &&
    292 		    (uplcom_devs[i].release == uaa->release ||
    293 		    uplcom_devs[i].release == -1)) {
    294 			sc->sc_type = uplcom_devs[i].chiptype;
    295 			break;
    296 		}
    297 	}
    298 
    299 #ifdef USB_DEBUG
    300 	/* print the chip type */
    301 	if (sc->sc_type == UPLCOM_TYPE_HX) {
    302 		DPRINTF(("uplcom_attach: chiptype HX\n"));
    303 	} else {
    304 		DPRINTF(("uplcom_attach: chiptype 0\n"));
    305 	}
    306 #endif
    307 
    308 	/* Move the device into the configured state. */
    309 	err = usbd_set_config_index(dev, UPLCOM_CONFIG_INDEX, 1);
    310 	if (err) {
    311 		printf("%s: failed to set configuration: %s\n",
    312 			devname, usbd_errstr(err));
    313 		sc->sc_dying = 1;
    314 		USB_ATTACH_ERROR_RETURN;
    315 	}
    316 
    317 	/* get the config descriptor */
    318 	cdesc = usbd_get_config_descriptor(sc->sc_udev);
    319 
    320 	if (cdesc == NULL) {
    321 		printf("%s: failed to get configuration descriptor\n",
    322 			USBDEVNAME(sc->sc_dev));
    323 		sc->sc_dying = 1;
    324 		USB_ATTACH_ERROR_RETURN;
    325 	}
    326 
    327 	/* get the (first/common) interface */
    328 	err = usbd_device2interface_handle(dev, UPLCOM_IFACE_INDEX,
    329 							&sc->sc_iface);
    330 	if (err) {
    331 		printf("\n%s: failed to get interface, err=%s\n",
    332 			devname, usbd_errstr(err));
    333 		sc->sc_dying = 1;
    334 		USB_ATTACH_ERROR_RETURN;
    335 	}
    336 
    337 	/* Find the interrupt endpoints */
    338 
    339 	id = usbd_get_interface_descriptor(sc->sc_iface);
    340 	sc->sc_iface_number = id->bInterfaceNumber;
    341 
    342 	for (i = 0; i < id->bNumEndpoints; i++) {
    343 		ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
    344 		if (ed == NULL) {
    345 			printf("%s: no endpoint descriptor for %d\n",
    346 				USBDEVNAME(sc->sc_dev), i);
    347 			sc->sc_dying = 1;
    348 			USB_ATTACH_ERROR_RETURN;
    349 		}
    350 
    351 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    352 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
    353 			sc->sc_intr_number = ed->bEndpointAddress;
    354 			sc->sc_isize = UGETW(ed->wMaxPacketSize);
    355 		}
    356 	}
    357 
    358 	if (sc->sc_intr_number== -1) {
    359 		printf("%s: Could not find interrupt in\n",
    360 			USBDEVNAME(sc->sc_dev));
    361 		sc->sc_dying = 1;
    362 		USB_ATTACH_ERROR_RETURN;
    363 	}
    364 
    365 	/* keep interface for interrupt */
    366 	sc->sc_intr_iface = sc->sc_iface;
    367 
    368 	/*
    369 	 * USB-RSAQ1 has two interface
    370 	 *
    371 	 *  USB-RSAQ1       | USB-RSAQ2
    372  	 * -----------------+-----------------
    373 	 * Interface 0      |Interface 0
    374 	 *  Interrupt(0x81) | Interrupt(0x81)
    375 	 * -----------------+ BulkIN(0x02)
    376 	 * Interface 1	    | BulkOUT(0x83)
    377 	 *   BulkIN(0x02)   |
    378 	 *   BulkOUT(0x83)  |
    379 	 */
    380 	if (cdesc->bNumInterface == 2) {
    381 		err = usbd_device2interface_handle(dev,
    382 				UPLCOM_SECOND_IFACE_INDEX, &sc->sc_iface);
    383 		if (err) {
    384 			printf("\n%s: failed to get second interface, err=%s\n",
    385 							devname, usbd_errstr(err));
    386 			sc->sc_dying = 1;
    387 			USB_ATTACH_ERROR_RETURN;
    388 		}
    389 	}
    390 
    391 	/* Find the bulk{in,out} endpoints */
    392 
    393 	id = usbd_get_interface_descriptor(sc->sc_iface);
    394 	sc->sc_iface_number = id->bInterfaceNumber;
    395 
    396 	for (i = 0; i < id->bNumEndpoints; i++) {
    397 		ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
    398 		if (ed == NULL) {
    399 			printf("%s: no endpoint descriptor for %d\n",
    400 				USBDEVNAME(sc->sc_dev), i);
    401 			sc->sc_dying = 1;
    402 			USB_ATTACH_ERROR_RETURN;
    403 		}
    404 
    405 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    406 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
    407 			uca.bulkin = ed->bEndpointAddress;
    408 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
    409 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
    410 			uca.bulkout = ed->bEndpointAddress;
    411 		}
    412 	}
    413 
    414 	if (uca.bulkin == -1) {
    415 		printf("%s: Could not find data bulk in\n",
    416 			USBDEVNAME(sc->sc_dev));
    417 		sc->sc_dying = 1;
    418 		USB_ATTACH_ERROR_RETURN;
    419 	}
    420 
    421 	if (uca.bulkout == -1) {
    422 		printf("%s: Could not find data bulk out\n",
    423 			USBDEVNAME(sc->sc_dev));
    424 		sc->sc_dying = 1;
    425 		USB_ATTACH_ERROR_RETURN;
    426 	}
    427 
    428 	sc->sc_dtr = sc->sc_rts = -1;
    429 	uca.portno = UCOM_UNK_PORTNO;
    430 	/* bulkin, bulkout set above */
    431 	uca.ibufsize = UPLCOMIBUFSIZE;
    432 	uca.obufsize = UPLCOMOBUFSIZE;
    433 	uca.ibufsizepad = UPLCOMIBUFSIZE;
    434 	uca.opkthdrlen = 0;
    435 	uca.device = dev;
    436 	uca.iface = sc->sc_iface;
    437 	uca.methods = &uplcom_methods;
    438 	uca.arg = sc;
    439 	uca.info = NULL;
    440 
    441 	err = uplcom_reset(sc);
    442 
    443 	if (err) {
    444 		printf("%s: reset failed, %s\n", USBDEVNAME(sc->sc_dev),
    445 			usbd_errstr(err));
    446 		sc->sc_dying = 1;
    447 		USB_ATTACH_ERROR_RETURN;
    448 	}
    449 
    450 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
    451 			   USBDEV(sc->sc_dev));
    452 
    453 	DPRINTF(("uplcom: in=0x%x out=0x%x intr=0x%x\n",
    454 			uca.bulkin, uca.bulkout, sc->sc_intr_number ));
    455 	sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca,
    456 					    ucomprint, ucomsubmatch);
    457 
    458 	USB_ATTACH_SUCCESS_RETURN;
    459 }
    460 
    461 void
    462 uplcom_childdet(device_t self, device_t child)
    463 {
    464 	struct uplcom_softc *sc = device_private(self);
    465 
    466 	KASSERT(sc->sc_subdev == child);
    467 	sc->sc_subdev = NULL;
    468 }
    469 
    470 USB_DETACH(uplcom)
    471 {
    472 	USB_DETACH_START(uplcom, sc);
    473 	int rv = 0;
    474 
    475 	DPRINTF(("uplcom_detach: sc=%p flags=%d\n", sc, flags));
    476 
    477         if (sc->sc_intr_pipe != NULL) {
    478                 usbd_abort_pipe(sc->sc_intr_pipe);
    479                 usbd_close_pipe(sc->sc_intr_pipe);
    480 		free(sc->sc_intr_buf, M_USBDEV);
    481                 sc->sc_intr_pipe = NULL;
    482         }
    483 
    484 	sc->sc_dying = 1;
    485 	if (sc->sc_subdev != NULL)
    486 		rv = config_detach(sc->sc_subdev, flags);
    487 
    488 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
    489 			   USBDEV(sc->sc_dev));
    490 
    491 	return (rv);
    492 }
    493 
    494 int
    495 uplcom_activate(device_t self, enum devact act)
    496 {
    497 	struct uplcom_softc *sc = device_private(self);
    498 	int rv = 0;
    499 
    500 	switch (act) {
    501 	case DVACT_ACTIVATE:
    502 		return (EOPNOTSUPP);
    503 
    504 	case DVACT_DEACTIVATE:
    505 		if (sc->sc_subdev != NULL)
    506 			rv = config_deactivate(sc->sc_subdev);
    507 		sc->sc_dying = 1;
    508 		break;
    509 	}
    510 	return (rv);
    511 }
    512 
    513 usbd_status
    514 uplcom_reset(struct uplcom_softc *sc)
    515 {
    516         usb_device_request_t req;
    517 	usbd_status err;
    518 
    519         req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    520         req.bRequest = UPLCOM_SET_REQUEST;
    521         USETW(req.wValue, 0);
    522         USETW(req.wIndex, sc->sc_iface_number);
    523         USETW(req.wLength, 0);
    524 
    525         err = usbd_do_request(sc->sc_udev, &req, 0);
    526 	if (err)
    527 		return (EIO);
    528 
    529 	return (0);
    530 }
    531 
    532 struct pl2303x_init {
    533 	uint8_t		req_type;
    534 	uint8_t		request;
    535 	uint16_t	value;
    536 	uint16_t	index;
    537 	uint16_t	length;
    538 };
    539 
    540 static const struct pl2303x_init pl2303x[] = {
    541 	{ UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8484,    0, 0 },
    542 	{ UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404,    0, 0 },
    543 	{ UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8484,    0, 0 },
    544 	{ UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8383,    0, 0 },
    545 	{ UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8484,    0, 0 },
    546 	{ UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 0x0404,    1, 0 },
    547 	{ UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8484,    0, 0 },
    548 	{ UT_READ_VENDOR_DEVICE,  UPLCOM_SET_REQUEST, 0x8383,    0, 0 },
    549 	{ UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST,      0,    1, 0 },
    550 	{ UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST,      1,    0, 0 },
    551 	{ UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST,      2, 0x44, 0 }
    552 };
    553 #define N_PL2302X_INIT  (sizeof(pl2303x)/sizeof(pl2303x[0]))
    554 
    555 static usbd_status
    556 uplcom_pl2303x_init(struct uplcom_softc *sc)
    557 {
    558 	usb_device_request_t req;
    559 	usbd_status err;
    560 	int i;
    561 
    562 	for (i = 0; i < N_PL2302X_INIT; i++) {
    563 		req.bmRequestType = pl2303x[i].req_type;
    564 		req.bRequest = pl2303x[i].request;
    565 		USETW(req.wValue, pl2303x[i].value);
    566 		USETW(req.wIndex, pl2303x[i].index);
    567 		USETW(req.wLength, pl2303x[i].length);
    568 
    569 		err = usbd_do_request(sc->sc_udev, &req, 0);
    570 		if (err) {
    571 			printf("%s: uplcom_pl2303x_init failed: %s\n",
    572 				USBDEVNAME(sc->sc_dev), usbd_errstr(err));
    573 			return (EIO);
    574 		}
    575 	}
    576 
    577 	return (0);
    578 }
    579 
    580 void
    581 uplcom_set_line_state(struct uplcom_softc *sc)
    582 {
    583 	usb_device_request_t req;
    584 	int ls;
    585 
    586 	/* make sure we have initialized state for sc_dtr and sc_rts */
    587 	if (sc->sc_dtr == -1)
    588 		sc->sc_dtr = 0;
    589 	if (sc->sc_rts == -1)
    590 		sc->sc_rts = 0;
    591 
    592 	ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) |
    593 		(sc->sc_rts ? UCDC_LINE_RTS : 0);
    594 
    595 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
    596 	req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
    597 	USETW(req.wValue, ls);
    598 	USETW(req.wIndex, sc->sc_iface_number);
    599 	USETW(req.wLength, 0);
    600 
    601 	(void)usbd_do_request(sc->sc_udev, &req, 0);
    602 }
    603 
    604 void
    605 uplcom_set(void *addr, int portno, int reg, int onoff)
    606 {
    607 	struct uplcom_softc *sc = addr;
    608 
    609 	switch (reg) {
    610 	case UCOM_SET_DTR:
    611 		uplcom_dtr(sc, onoff);
    612 		break;
    613 	case UCOM_SET_RTS:
    614 		uplcom_rts(sc, onoff);
    615 		break;
    616 	case UCOM_SET_BREAK:
    617 		uplcom_break(sc, onoff);
    618 		break;
    619 	default:
    620 		break;
    621 	}
    622 }
    623 
    624 void
    625 uplcom_dtr(struct uplcom_softc *sc, int onoff)
    626 {
    627 
    628 	DPRINTF(("uplcom_dtr: onoff=%d\n", onoff));
    629 
    630 	if (sc->sc_dtr != -1 && !sc->sc_dtr == !onoff)
    631 		return;
    632 
    633 	sc->sc_dtr = !!onoff;
    634 
    635 	uplcom_set_line_state(sc);
    636 }
    637 
    638 void
    639 uplcom_rts(struct uplcom_softc *sc, int onoff)
    640 {
    641 	DPRINTF(("uplcom_rts: onoff=%d\n", onoff));
    642 
    643 	if (sc->sc_rts != -1 && !sc->sc_rts == !onoff)
    644 		return;
    645 
    646 	sc->sc_rts = !!onoff;
    647 
    648 	uplcom_set_line_state(sc);
    649 }
    650 
    651 void
    652 uplcom_break(struct uplcom_softc *sc, int onoff)
    653 {
    654 	usb_device_request_t req;
    655 
    656 	DPRINTF(("uplcom_break: onoff=%d\n", onoff));
    657 
    658 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
    659 	req.bRequest = UCDC_SEND_BREAK;
    660 	USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
    661 	USETW(req.wIndex, sc->sc_iface_number);
    662 	USETW(req.wLength, 0);
    663 
    664 	(void)usbd_do_request(sc->sc_udev, &req, 0);
    665 }
    666 
    667 usbd_status
    668 uplcom_set_crtscts(struct uplcom_softc *sc)
    669 {
    670 	usb_device_request_t req;
    671 	usbd_status err;
    672 
    673 	DPRINTF(("uplcom_set_crtscts: on\n"));
    674 
    675 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    676 	req.bRequest = UPLCOM_SET_REQUEST;
    677 	USETW(req.wValue, 0);
    678 	if (sc->sc_type == UPLCOM_TYPE_HX)
    679 		USETW(req.wIndex, UPLCOM_SET_CRTSCTS_HX);
    680 	else
    681 		USETW(req.wIndex, UPLCOM_SET_CRTSCTS_0);
    682 	USETW(req.wLength, 0);
    683 
    684 	err = usbd_do_request(sc->sc_udev, &req, 0);
    685 	if (err) {
    686 		DPRINTF(("uplcom_set_crtscts: failed, err=%s\n",
    687 			usbd_errstr(err)));
    688 		return (err);
    689 	}
    690 
    691 	return (USBD_NORMAL_COMPLETION);
    692 }
    693 
    694 usbd_status
    695 uplcom_set_line_coding(struct uplcom_softc *sc, usb_cdc_line_state_t *state)
    696 {
    697 	usb_device_request_t req;
    698 	usbd_status err;
    699 
    700 	DPRINTF(("uplcom_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n",
    701 		UGETDW(state->dwDTERate), state->bCharFormat,
    702 		state->bParityType, state->bDataBits));
    703 
    704 	if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) {
    705 		DPRINTF(("uplcom_set_line_coding: already set\n"));
    706 		return (USBD_NORMAL_COMPLETION);
    707 	}
    708 
    709 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
    710 	req.bRequest = UCDC_SET_LINE_CODING;
    711 	USETW(req.wValue, 0);
    712 	USETW(req.wIndex, sc->sc_iface_number);
    713 	USETW(req.wLength, UCDC_LINE_STATE_LENGTH);
    714 
    715 	err = usbd_do_request(sc->sc_udev, &req, state);
    716 	if (err) {
    717 		DPRINTF(("uplcom_set_line_coding: failed, err=%s\n",
    718 			usbd_errstr(err)));
    719 		return (err);
    720 	}
    721 
    722 	sc->sc_line_state = *state;
    723 
    724 	return (USBD_NORMAL_COMPLETION);
    725 }
    726 
    727 int
    728 uplcom_param(void *addr, int portno, struct termios *t)
    729 {
    730 	struct uplcom_softc *sc = addr;
    731 	usbd_status err;
    732 	usb_cdc_line_state_t ls;
    733 
    734 	DPRINTF(("uplcom_param: sc=%p\n", sc));
    735 
    736 	USETDW(ls.dwDTERate, t->c_ospeed);
    737 	if (ISSET(t->c_cflag, CSTOPB))
    738 		ls.bCharFormat = UCDC_STOP_BIT_2;
    739 	else
    740 		ls.bCharFormat = UCDC_STOP_BIT_1;
    741 	if (ISSET(t->c_cflag, PARENB)) {
    742 		if (ISSET(t->c_cflag, PARODD))
    743 			ls.bParityType = UCDC_PARITY_ODD;
    744 		else
    745 			ls.bParityType = UCDC_PARITY_EVEN;
    746 	} else
    747 		ls.bParityType = UCDC_PARITY_NONE;
    748 	switch (ISSET(t->c_cflag, CSIZE)) {
    749 	case CS5:
    750 		ls.bDataBits = 5;
    751 		break;
    752 	case CS6:
    753 		ls.bDataBits = 6;
    754 		break;
    755 	case CS7:
    756 		ls.bDataBits = 7;
    757 		break;
    758 	case CS8:
    759 		ls.bDataBits = 8;
    760 		break;
    761 	}
    762 
    763 	err = uplcom_set_line_coding(sc, &ls);
    764 	if (err) {
    765 		DPRINTF(("uplcom_param: err=%s\n", usbd_errstr(err)));
    766 		return (EIO);
    767 	}
    768 
    769 	if (ISSET(t->c_cflag, CRTSCTS))
    770 		uplcom_set_crtscts(sc);
    771 
    772 	if (sc->sc_rts == -1 || sc->sc_dtr == -1)
    773 		uplcom_set_line_state(sc);
    774 
    775 	if (err) {
    776 		DPRINTF(("uplcom_param: err=%s\n", usbd_errstr(err)));
    777 		return (EIO);
    778 	}
    779 
    780 	return (0);
    781 }
    782 
    783 Static usbd_status
    784 uplcom_vendor_control_write(usbd_device_handle dev, u_int16_t value, u_int16_t index)
    785 {
    786 	usb_device_request_t req;
    787 	usbd_status err;
    788 
    789 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    790 	req.bRequest = UPLCOM_SET_REQUEST;
    791 	USETW(req.wValue, value);
    792 	USETW(req.wIndex, index);
    793 	USETW(req.wLength, 0);
    794 
    795 	err = usbd_do_request(dev, &req, NULL);
    796 
    797 	if (err) {
    798 		DPRINTF(("uplcom_open: vendor write failed, err=%s (%d)\n",
    799 			    usbd_errstr(err), err));
    800 	}
    801 
    802 	return err;
    803 }
    804 
    805 int
    806 uplcom_open(void *addr, int portno)
    807 {
    808 	struct uplcom_softc *sc = addr;
    809 	usbd_status err;
    810 
    811 	if (sc->sc_dying)
    812 		return (EIO);
    813 
    814 	DPRINTF(("uplcom_open: sc=%p\n", sc));
    815 
    816 	/* Some unknown device frobbing. */
    817 	if (sc->sc_type == UPLCOM_TYPE_HX)
    818 		uplcom_vendor_control_write(sc->sc_udev, 2, 0x44);
    819 	else
    820 		uplcom_vendor_control_write(sc->sc_udev, 2, 0x24);
    821 
    822 	if (sc->sc_intr_number != -1 && sc->sc_intr_pipe == NULL) {
    823 		sc->sc_intr_buf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
    824 		err = usbd_open_pipe_intr(sc->sc_intr_iface, sc->sc_intr_number,
    825 			USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc,
    826 			sc->sc_intr_buf, sc->sc_isize,
    827 			uplcom_intr, USBD_DEFAULT_INTERVAL);
    828 		if (err) {
    829 			DPRINTF(("%s: cannot open interrupt pipe (addr %d)\n",
    830 				USBDEVNAME(sc->sc_dev), sc->sc_intr_number));
    831 					return (EIO);
    832 		}
    833 	}
    834 
    835 	if (sc->sc_type == UPLCOM_TYPE_HX)
    836 		return (uplcom_pl2303x_init(sc));
    837 
    838 	return (0);
    839 }
    840 
    841 void
    842 uplcom_close(void *addr, int portno)
    843 {
    844 	struct uplcom_softc *sc = addr;
    845 	int err;
    846 
    847 	if (sc->sc_dying)
    848 		return;
    849 
    850 	DPRINTF(("uplcom_close: close\n"));
    851 
    852 	if (sc->sc_intr_pipe != NULL) {
    853 		err = usbd_abort_pipe(sc->sc_intr_pipe);
    854 		if (err)
    855 			printf("%s: abort interrupt pipe failed: %s\n",
    856 				USBDEVNAME(sc->sc_dev), usbd_errstr(err));
    857 		err = usbd_close_pipe(sc->sc_intr_pipe);
    858 		if (err)
    859 			printf("%s: close interrupt pipe failed: %s\n",
    860 				USBDEVNAME(sc->sc_dev), usbd_errstr(err));
    861 		free(sc->sc_intr_buf, M_USBDEV);
    862 		sc->sc_intr_pipe = NULL;
    863 	}
    864 }
    865 
    866 void
    867 uplcom_intr(usbd_xfer_handle xfer, usbd_private_handle priv,
    868     usbd_status status)
    869 {
    870 	struct uplcom_softc *sc = priv;
    871 	u_char *buf = sc->sc_intr_buf;
    872 	u_char pstatus;
    873 
    874 	if (sc->sc_dying)
    875 		return;
    876 
    877 	if (status != USBD_NORMAL_COMPLETION) {
    878 		if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
    879 			return;
    880 
    881 		DPRINTF(("%s: abnormal status: %s\n", USBDEVNAME(sc->sc_dev),
    882 			usbd_errstr(status)));
    883 		usbd_clear_endpoint_stall_async(sc->sc_intr_pipe);
    884 		return;
    885 	}
    886 
    887 	DPRINTF(("%s: uplcom status = %02x\n", USBDEVNAME(sc->sc_dev), buf[8]));
    888 
    889 	sc->sc_lsr = sc->sc_msr = 0;
    890 	pstatus = buf[8];
    891 	if (ISSET(pstatus, RSAQ_STATUS_DSR))
    892 		sc->sc_msr |= UMSR_DSR;
    893 	if (ISSET(pstatus, RSAQ_STATUS_DCD))
    894 		sc->sc_msr |= UMSR_DCD;
    895 	ucom_status_change((struct ucom_softc *) sc->sc_subdev);
    896 }
    897 
    898 void
    899 uplcom_get_status(void *addr, int portno, u_char *lsr, u_char *msr)
    900 {
    901 	struct uplcom_softc *sc = addr;
    902 
    903 	DPRINTF(("uplcom_get_status:\n"));
    904 
    905 	if (lsr != NULL)
    906 		*lsr = sc->sc_lsr;
    907 	if (msr != NULL)
    908 		*msr = sc->sc_msr;
    909 }
    910 
    911 #if TODO
    912 int
    913 uplcom_ioctl(void *addr, int portno, u_long cmd, void *data, int flag,
    914 	     usb_proc_ptr p)
    915 {
    916 	struct uplcom_softc *sc = addr;
    917 	int error = 0;
    918 
    919 	if (sc->sc_dying)
    920 		return (EIO);
    921 
    922 	DPRINTF(("uplcom_ioctl: cmd=0x%08lx\n", cmd));
    923 
    924 	switch (cmd) {
    925 	case TIOCNOTTY:
    926 	case TIOCMGET:
    927 	case TIOCMSET:
    928 	case USB_GET_CM_OVER_DATA:
    929 	case USB_SET_CM_OVER_DATA:
    930 		break;
    931 
    932 	default:
    933 		DPRINTF(("uplcom_ioctl: unknown\n"));
    934 		error = ENOTTY;
    935 		break;
    936 	}
    937 
    938 	return (error);
    939 }
    940 #endif
    941