Home | History | Annotate | Line # | Download | only in usb
uipaq.c revision 1.12.4.1
      1 /*	$NetBSD: uipaq.c,v 1.12.4.1 2008/10/19 22:17:10 haad Exp $	*/
      2 /*	$OpenBSD: uipaq.c,v 1.1 2005/06/17 23:50:33 deraadt Exp $	*/
      3 
      4 /*
      5  * Copyright (c) 2000-2005 The NetBSD Foundation, Inc.
      6  * All rights reserved.
      7  *
      8  * This code is derived from software contributed to The NetBSD Foundation
      9  * by Lennart Augustsson (lennart (at) augustsson.net) at
     10  * Carlstedt Research & Technology.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 /*
     35  * iPAQ driver
     36  *
     37  * 19 July 2003:	Incorporated changes suggested by Sam Lawrance from
     38  * 			the uppc module
     39  *
     40  *
     41  * Contact isis (at) cs.umd.edu if you have any questions/comments about this driver
     42  */
     43 
     44 #include <sys/cdefs.h>
     45 __KERNEL_RCSID(0, "$NetBSD: uipaq.c,v 1.12.4.1 2008/10/19 22:17:10 haad Exp $");
     46 
     47 #include <sys/param.h>
     48 #include <sys/systm.h>
     49 #include <sys/kernel.h>
     50 #include <sys/device.h>
     51 #include <sys/conf.h>
     52 #include <sys/tty.h>
     53 
     54 #include <dev/usb/usb.h>
     55 
     56 #include <dev/usb/usbcdc.h>	/*UCDC_* stuff */
     57 
     58 #include <dev/usb/usbdi.h>
     59 #include <dev/usb/usbdi_util.h>
     60 #include <dev/usb/usbdevs.h>
     61 
     62 #include <dev/usb/ucomvar.h>
     63 
     64 #ifdef UIPAQ_DEBUG
     65 #define DPRINTF(x)	if (uipaqdebug) printf x
     66 #define DPRINTFN(n,x)	if (uipaqdebug>(n)) printf x
     67 int uipaqdebug = 0;
     68 #else
     69 #define DPRINTF(x)
     70 #define DPRINTFN(n,x)
     71 #endif
     72 
     73 #define UIPAQ_CONFIG_NO		1
     74 #define UIPAQ_IFACE_INDEX	0
     75 
     76 #define UIPAQIBUFSIZE 1024
     77 #define UIPAQOBUFSIZE 1024
     78 
     79 struct uipaq_softc {
     80 	USBBASEDEVICE		sc_dev;		/* base device */
     81 	usbd_device_handle	sc_udev;	/* device */
     82 	usbd_interface_handle	sc_iface;	/* interface */
     83 
     84 	device_t		sc_subdev;	/* ucom uses that */
     85 	u_int16_t		sc_lcr;		/* state for DTR/RTS */
     86 
     87 	u_int16_t		sc_flags;
     88 
     89 	u_char			sc_dying;
     90 };
     91 
     92 /* Callback routines */
     93 Static void	uipaq_set(void *, int, int, int);
     94 
     95 
     96 /* Support routines. */
     97 /* based on uppc module by Sam Lawrance */
     98 Static void	uipaq_dtr(struct uipaq_softc *sc, int onoff);
     99 Static void	uipaq_rts(struct uipaq_softc *sc, int onoff);
    100 Static void	uipaq_break(struct uipaq_softc* sc, int onoff);
    101 
    102 
    103 struct ucom_methods uipaq_methods = {
    104 	NULL,
    105 	uipaq_set,
    106 	NULL,
    107 	NULL,
    108 	NULL,	/*open*/
    109 	NULL,	/*close*/
    110 	NULL,
    111 	NULL
    112 };
    113 
    114 struct uipaq_type {
    115 	struct usb_devno	uv_dev;
    116 	u_int16_t		uv_flags;
    117 };
    118 
    119 static const struct uipaq_type uipaq_devs[] = {
    120 	{{ USB_VENDOR_HP, USB_PRODUCT_HP_2215 }, 0 },
    121 	{{ USB_VENDOR_HP, USB_PRODUCT_HP_568J }, 0},
    122 	{{ USB_VENDOR_COMPAQ, USB_PRODUCT_COMPAQ_IPAQPOCKETPC} , 0},
    123 	{{ USB_VENDOR_CASIO, USB_PRODUCT_CASIO_BE300} , 0},
    124 	{{ USB_VENDOR_SHARP, USB_PRODUCT_SHARP_WS007SH} , 0},
    125 	{{ USB_VENDOR_SHARP, USB_PRODUCT_SHARP_WS011SH} , 0}
    126 };
    127 
    128 #define uipaq_lookup(v, p) ((const struct uipaq_type *)usb_lookup(uipaq_devs, v, p))
    129 
    130 int uipaq_match(device_t, cfdata_t, void *);
    131 void uipaq_attach(device_t, device_t, void *);
    132 void uipaq_childdet(device_t, device_t);
    133 int uipaq_detach(device_t, int);
    134 int uipaq_activate(device_t, enum devact);
    135 extern struct cfdriver uipaq_cd;
    136 CFATTACH_DECL2_NEW(uipaq, sizeof(struct uipaq_softc), uipaq_match,
    137     uipaq_attach, uipaq_detach, uipaq_activate, NULL, uipaq_childdet);
    138 
    139 USB_MATCH(uipaq)
    140 {
    141 	USB_MATCH_START(uipaq, uaa);
    142 
    143 	DPRINTFN(20,("uipaq: vendor=0x%x, product=0x%x\n",
    144 	    uaa->vendor, uaa->product));
    145 
    146 	return (uipaq_lookup(uaa->vendor, uaa->product) != NULL ?
    147 	    UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
    148 }
    149 
    150 USB_ATTACH(uipaq)
    151 {
    152 	USB_ATTACH_START(uipaq, sc, uaa);
    153 	usbd_device_handle dev = uaa->device;
    154 	usbd_interface_handle iface;
    155 	usb_interface_descriptor_t *id;
    156 	usb_endpoint_descriptor_t *ed;
    157 	char *devinfop;
    158 	const char *devname = device_xname(self);
    159 	int i;
    160 	usbd_status err;
    161 	struct ucom_attach_args uca;
    162 
    163 	DPRINTFN(10,("\nuipaq_attach: sc=%p\n", sc));
    164 
    165 	sc->sc_dev = self;
    166 
    167 	/* Move the device into the configured state. */
    168 	err = usbd_set_config_no(dev, UIPAQ_CONFIG_NO, 1);
    169 	if (err) {
    170 		aprint_error("\n%s: failed to set configuration, err=%s\n",
    171 		    devname, usbd_errstr(err));
    172 		goto bad;
    173 	}
    174 
    175 	err = usbd_device2interface_handle(dev, UIPAQ_IFACE_INDEX, &iface);
    176 	if (err) {
    177 		aprint_error("\n%s: failed to get interface, err=%s\n",
    178 		    devname, usbd_errstr(err));
    179 		goto bad;
    180 	}
    181 
    182 	devinfop = usbd_devinfo_alloc(dev, 0);
    183 	USB_ATTACH_SETUP;
    184 	aprint_normal_dev(self, "%s\n", devinfop);
    185 	usbd_devinfo_free(devinfop);
    186 
    187 	sc->sc_flags = uipaq_lookup(uaa->vendor, uaa->product)->uv_flags;
    188 
    189 	id = usbd_get_interface_descriptor(iface);
    190 
    191 	sc->sc_udev = dev;
    192 	sc->sc_iface = iface;
    193 
    194 	uca.ibufsize = UIPAQIBUFSIZE;
    195 	uca.obufsize = UIPAQOBUFSIZE;
    196 	uca.ibufsizepad = UIPAQIBUFSIZE;
    197 	uca.opkthdrlen = 0;
    198 	uca.device = dev;
    199 	uca.iface = iface;
    200 	uca.methods = &uipaq_methods;
    201 	uca.arg = sc;
    202 	uca.portno = UCOM_UNK_PORTNO;
    203 	uca.info = "Generic";
    204 
    205 /*	err = uipaq_init(sc);
    206 	if (err) {
    207 		printf("%s: init failed, %s\n", USBDEVNAME(sc->sc_dev),
    208 		    usbd_errstr(err));
    209 		goto bad;
    210 	}*/
    211 
    212 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
    213 	    USBDEV(sc->sc_dev));
    214 
    215 	uca.bulkin = uca.bulkout = -1;
    216 	for (i=0; i<id->bNumEndpoints; i++) {
    217 		ed = usbd_interface2endpoint_descriptor(iface, i);
    218 		if (ed == NULL) {
    219 			aprint_error_dev(self,
    220 			    "no endpoint descriptor for %d\n", i);
    221 			goto bad;
    222 		}
    223 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    224 		    (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
    225 			uca.bulkin = ed->bEndpointAddress;
    226 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
    227 		    (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
    228 			uca.bulkout = ed->bEndpointAddress;
    229 		}
    230 	}
    231 	if (uca.bulkin == -1 || uca.bulkout == -1) {
    232 		aprint_error_dev(self, "no proper endpoints found (%d,%d) \n",
    233 		    uca.bulkin, uca.bulkout);
    234 		USB_ATTACH_ERROR_RETURN;
    235 	}
    236 
    237 	sc->sc_subdev = config_found_sm_loc(self, "ucombus", NULL, &uca,
    238 					    ucomprint, ucomsubmatch);
    239 
    240 	USB_ATTACH_SUCCESS_RETURN;
    241 
    242 bad:
    243 	DPRINTF(("uipaq_attach: ATTACH ERROR\n"));
    244 	sc->sc_dying = 1;
    245 	USB_ATTACH_ERROR_RETURN;
    246 }
    247 
    248 
    249 void
    250 uipaq_dtr(struct uipaq_softc* sc, int onoff)
    251 {
    252 	usb_device_request_t req;
    253 	usbd_status err;
    254 	int retries = 3;
    255 
    256 	DPRINTF(("%s: uipaq_dtr: onoff=%x\n", USBDEVNAME(sc->sc_dev), onoff));
    257 
    258 	/* Avoid sending unnecessary requests */
    259 	if (onoff && (sc->sc_lcr & UCDC_LINE_DTR))
    260 		return;
    261 	if (!onoff && !(sc->sc_lcr & UCDC_LINE_DTR))
    262 		return;
    263 
    264 	/* Other parameters depend on reg */
    265 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
    266 	req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
    267 	sc->sc_lcr = onoff ? sc->sc_lcr | UCDC_LINE_DTR : sc->sc_lcr & ~UCDC_LINE_DTR;
    268 	USETW(req.wValue, sc->sc_lcr);
    269 	USETW(req.wIndex, 0x0);
    270 	USETW(req.wLength, 0);
    271 
    272 	/* Fire off the request a few times if necessary */
    273 	while (retries) {
    274 		err = usbd_do_request(sc->sc_udev, &req, NULL);
    275 		if (!err)
    276 			break;
    277 		retries--;
    278 	}
    279 }
    280 
    281 
    282 void
    283 uipaq_rts(struct uipaq_softc* sc, int onoff)
    284 {
    285 	usb_device_request_t req;
    286 	usbd_status err;
    287 	int retries = 3;
    288 
    289 	DPRINTF(("%s: uipaq_rts: onoff=%x\n", USBDEVNAME(sc->sc_dev), onoff));
    290 
    291 	/* Avoid sending unnecessary requests */
    292 	if (onoff && (sc->sc_lcr & UCDC_LINE_RTS)) return;
    293 	if (!onoff && !(sc->sc_lcr & UCDC_LINE_RTS)) return;
    294 
    295 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
    296 	req.bRequest = UCDC_SET_CONTROL_LINE_STATE;
    297 	sc->sc_lcr = onoff ? sc->sc_lcr | UCDC_LINE_RTS : sc->sc_lcr & ~UCDC_LINE_RTS;
    298 	USETW(req.wValue, sc->sc_lcr);
    299 	USETW(req.wIndex, 0x0);
    300 	USETW(req.wLength, 0);
    301 
    302 	while (retries) {
    303 		err = usbd_do_request(sc->sc_udev, &req, NULL);
    304 		if (!err)
    305 			break;
    306 		retries--;
    307 	}
    308 }
    309 
    310 
    311 void
    312 uipaq_break(struct uipaq_softc* sc, int onoff)
    313 {
    314 	usb_device_request_t req;
    315 	usbd_status err;
    316 	int retries = 3;
    317 
    318 	DPRINTF(("%s: uipaq_break: onoff=%x\n", USBDEVNAME(sc->sc_dev), onoff));
    319 
    320 	req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
    321 	req.bRequest = UCDC_SEND_BREAK;
    322 
    323 	USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF);
    324 	USETW(req.wIndex, 0x0);
    325 	USETW(req.wLength, 0);
    326 
    327 	while (retries) {
    328 		err = usbd_do_request(sc->sc_udev, &req, NULL);
    329 		if (!err)
    330 			break;
    331 		retries--;
    332 	}
    333 }
    334 
    335 
    336 void
    337 uipaq_set(void *addr, int portno, int reg, int onoff)
    338 {
    339 	struct uipaq_softc* sc = addr;
    340 
    341 	switch (reg) {
    342 	case UCOM_SET_DTR:
    343 		uipaq_dtr(addr, onoff);
    344 		break;
    345 	case UCOM_SET_RTS:
    346 		uipaq_rts(addr, onoff);
    347 		break;
    348 	case UCOM_SET_BREAK:
    349 		uipaq_break(addr, onoff);
    350 		break;
    351 	default:
    352 		aprint_error_dev(sc->sc_dev,
    353 		    "unhandled set request: reg=%x onoff=%x\n", reg, onoff);
    354 		return;
    355 	}
    356 }
    357 
    358 
    359 int
    360 uipaq_activate(device_t self, enum devact act)
    361 {
    362 	struct uipaq_softc *sc = device_private(self);
    363 	int rv = 0;
    364 
    365 	switch (act) {
    366 	case DVACT_ACTIVATE:
    367 		return (EOPNOTSUPP);
    368 		break;
    369 
    370 	case DVACT_DEACTIVATE:
    371 		if (sc->sc_subdev != NULL)
    372 			rv = config_deactivate(sc->sc_subdev);
    373 		sc->sc_dying = 1;
    374 		break;
    375 	}
    376 	return (rv);
    377 }
    378 
    379 void
    380 uipaq_childdet(device_t self, device_t child)
    381 {
    382 	struct uipaq_softc *sc = device_private(self);
    383 
    384 	KASSERT(sc->sc_subdev == child);
    385 	sc->sc_subdev = NULL;
    386 }
    387 
    388 int
    389 uipaq_detach(device_t self, int flags)
    390 {
    391 	struct uipaq_softc *sc = device_private(self);
    392 	int rv = 0;
    393 
    394 	DPRINTF(("uipaq_detach: sc=%p flags=%d\n", sc, flags));
    395 	sc->sc_dying = 1;
    396 	if (sc->sc_subdev != NULL)
    397 		rv |= config_detach(sc->sc_subdev, flags);
    398 
    399 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
    400 	    USBDEV(sc->sc_dev));
    401 
    402 	return (rv);
    403 }
    404 
    405