1 /* $NetBSD: uep.c,v 1.1 2004/05/24 23:48:36 tsarna Exp $ */ 2 3 /* 4 * Copyright (c) 2004 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Tyler C. Sarna (tsarna@netbsd.org). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: uep.c,v 1.1 2004/05/24 23:48:36 tsarna Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/malloc.h> 46 #include <sys/device.h> 47 #include <sys/ioctl.h> 48 #include <sys/vnode.h> 49 50 #include <dev/usb/usb.h> 51 #include <dev/usb/usbdi.h> 52 #include <dev/usb/usbdi_util.h> 53 #include <dev/usb/usbdevs.h> 54 #include <dev/usb/usb_quirks.h> 55 56 #include <dev/wscons/wsconsio.h> 57 #include <dev/wscons/wsmousevar.h> 58 59 struct uep_softc { 60 USBBASEDEVICE sc_dev; 61 usbd_device_handle sc_udev; /* device */ 62 usbd_interface_handle sc_iface; /* interface */ 63 int sc_iface_number; 64 65 int sc_intr_number; /* interrupt number */ 66 usbd_pipe_handle sc_intr_pipe; /* interrupt pipe */ 67 u_char *sc_ibuf; 68 int sc_isize; 69 70 device_ptr_t sc_wsmousedev; /* wsmouse device */ 71 72 u_char sc_enabled; 73 u_char sc_dying; 74 }; 75 76 Static void uep_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 77 78 Static int uep_enable(void *); 79 Static void uep_disable(void *); 80 Static int uep_ioctl(void *, u_long, caddr_t, int, usb_proc_ptr); 81 82 const struct wsmouse_accessops uep_accessops = { 83 uep_enable, 84 uep_ioctl, 85 uep_disable, 86 }; 87 88 USB_DECLARE_DRIVER(uep); 89 90 USB_MATCH(uep) 91 { 92 USB_MATCH_START(uep, uaa); 93 94 if (uaa->iface == NULL) 95 return UMATCH_NONE; 96 97 if ((uaa->vendor == USB_VENDOR_EGALAX) && ( 98 (uaa->product == USB_PRODUCT_EGALAX_TPANEL) 99 || (uaa->product == USB_PRODUCT_EGALAX_TPANEL2) 100 )) 101 return UMATCH_VENDOR_PRODUCT; 102 103 if ((uaa->vendor == USB_VENDOR_EGALAX2) 104 && (uaa->product == USB_PRODUCT_EGALAX2_TPANEL)) 105 return UMATCH_VENDOR_PRODUCT; 106 107 108 return UMATCH_NONE; 109 } 110 111 USB_ATTACH(uep) 112 { 113 USB_ATTACH_START(uep, sc, uaa); 114 usbd_device_handle dev = uaa->device; 115 usb_config_descriptor_t *cdesc; 116 usb_interface_descriptor_t *id; 117 usb_endpoint_descriptor_t *ed; 118 struct wsmousedev_attach_args a; 119 char devinfo[1024]; 120 usbd_status err; 121 int i, found; 122 123 usbd_devinfo(dev, 0, devinfo, sizeof(devinfo)); 124 125 USB_ATTACH_SETUP; 126 127 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 128 129 sc->sc_udev = dev; 130 sc->sc_intr_number = -1; 131 sc->sc_intr_pipe = NULL; 132 sc->sc_enabled = sc->sc_isize = 0; 133 134 /* Move the device into the configured state. */ 135 err = usbd_set_config_index(dev, 0, 1); 136 if (err) { 137 printf("\n%s: failed to set configuration, err=%s\n", 138 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 139 sc->sc_dying = 1; 140 USB_ATTACH_ERROR_RETURN; 141 } 142 143 /* get the config descriptor */ 144 cdesc = usbd_get_config_descriptor(sc->sc_udev); 145 if (cdesc == NULL) { 146 printf("%s: failed to get configuration descriptor\n", 147 USBDEVNAME(sc->sc_dev)); 148 sc->sc_dying = 1; 149 USB_ATTACH_ERROR_RETURN; 150 } 151 152 /* get the interface */ 153 err = usbd_device2interface_handle(dev, 0, &sc->sc_iface); 154 if (err) { 155 printf("\n%s: failed to get interface, err=%s\n", 156 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 157 sc->sc_dying = 1; 158 USB_ATTACH_ERROR_RETURN; 159 } 160 161 /* Find the interrupt endpoint */ 162 id = usbd_get_interface_descriptor(sc->sc_iface); 163 sc->sc_iface_number = id->bInterfaceNumber; 164 found = 0; 165 166 for (i = 0; i < id->bNumEndpoints; i++) { 167 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 168 if (ed == NULL) { 169 printf("%s: no endpoint descriptor for %d\n", 170 USBDEVNAME(sc->sc_dev), i); 171 sc->sc_dying = 1; 172 USB_ATTACH_ERROR_RETURN; 173 } 174 175 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 176 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 177 sc->sc_intr_number = ed->bEndpointAddress; 178 sc->sc_isize = UGETW(ed->wMaxPacketSize); 179 } 180 } 181 182 if (sc->sc_intr_number== -1) { 183 printf("%s: Could not find interrupt in\n", 184 USBDEVNAME(sc->sc_dev)); 185 sc->sc_dying = 1; 186 USB_ATTACH_ERROR_RETURN; 187 } 188 189 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 190 USBDEV(sc->sc_dev)); 191 192 a.accessops = &uep_accessops; 193 a.accesscookie = sc; 194 195 sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint); 196 197 USB_ATTACH_SUCCESS_RETURN; 198 } 199 200 USB_DETACH(uep) 201 { 202 USB_DETACH_START(uep, sc); 203 int rv = 0; 204 205 if (sc->sc_intr_pipe != NULL) { 206 usbd_abort_pipe(sc->sc_intr_pipe); 207 usbd_close_pipe(sc->sc_intr_pipe); 208 sc->sc_intr_pipe = NULL; 209 } 210 211 sc->sc_dying = 1; 212 213 if (sc->sc_wsmousedev != NULL) { 214 rv = config_detach(sc->sc_wsmousedev, flags); 215 sc->sc_wsmousedev = NULL; 216 } 217 218 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 219 USBDEV(sc->sc_dev)); 220 221 return rv; 222 } 223 224 int 225 uep_activate(device_ptr_t self, enum devact act) 226 { 227 struct uep_softc *sc = (struct uep_softc *)self; 228 int rv = 0; 229 230 switch (act) { 231 case DVACT_ACTIVATE: 232 return EOPNOTSUPP; 233 234 case DVACT_DEACTIVATE: 235 if (sc->sc_wsmousedev != NULL) 236 rv = config_deactivate(sc->sc_wsmousedev); 237 sc->sc_dying = 1; 238 break; 239 } 240 241 return rv; 242 } 243 244 Static int 245 uep_enable(void *v) 246 { 247 struct uep_softc *sc = v; 248 int err; 249 250 if (sc->sc_dying) 251 return EIO; 252 253 if (sc->sc_enabled) 254 return EBUSY; 255 256 if (sc->sc_isize == 0) 257 return 0; 258 sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 259 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_intr_number, 260 USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc, sc->sc_ibuf, 261 sc->sc_isize, uep_intr, USBD_DEFAULT_INTERVAL); 262 if (err) { 263 free(sc->sc_ibuf, M_USBDEV); 264 sc->sc_intr_pipe = NULL; 265 return EIO; 266 } 267 268 sc->sc_enabled = 1; 269 270 return 0; 271 } 272 273 Static void 274 uep_disable(void *v) 275 { 276 struct uep_softc *sc = v; 277 278 if (!sc->sc_enabled) { 279 printf("uep_disable: already disabled!\n"); 280 return; 281 } 282 283 /* Disable interrupts. */ 284 if (sc->sc_intr_pipe != NULL) { 285 usbd_abort_pipe(sc->sc_intr_pipe); 286 usbd_close_pipe(sc->sc_intr_pipe); 287 sc->sc_intr_pipe = NULL; 288 } 289 290 if (sc->sc_ibuf != NULL) { 291 free(sc->sc_ibuf, M_USBDEV); 292 sc->sc_ibuf = NULL; 293 } 294 295 sc->sc_enabled = 0; 296 } 297 298 Static int 299 uep_ioctl(void *v, u_long cmd, caddr_t data, int flag, usb_proc_ptr p) 300 { 301 switch (cmd) { 302 case WSMOUSEIO_GTYPE: 303 *(u_int *)data = WSMOUSE_TYPE_TPANEL; 304 return (0); 305 } 306 307 return EPASSTHROUGH; 308 } 309 310 void 311 uep_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) 312 { 313 struct uep_softc *sc = addr; 314 u_char *p = sc->sc_ibuf; 315 u_int32_t len; 316 int x = 0, y = 0, s; 317 318 usbd_get_xfer_status(xfer, NULL, NULL, &len, NULL); 319 320 if (status == USBD_CANCELLED) 321 return; 322 323 if (status != USBD_NORMAL_COMPLETION) { 324 printf("%s: status %d\n", USBDEVNAME(sc->sc_dev), status); 325 usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); 326 return; 327 } 328 329 if (len != 5) { 330 #if 0 331 printf("%s: bad input length %d != %d\n", 332 USBDEVNAME(sc->sc_dev), len, sc->sc_isize); 333 #endif 334 return; 335 } 336 337 if ((p[0] & 0xFE) != 0x80) { 338 printf("%s: bad input packet format\n", USBDEVNAME(sc->sc_dev)); 339 return; 340 } 341 342 if (sc->sc_wsmousedev != NULL) { 343 x = (p[3] << 7) | p[4]; 344 y = (p[1] << 7) | p[2]; 345 346 #if 0 347 printf("%s: b=%d x=%d y=%d\n", USBDEVNAME(sc->sc_dev), 348 p[0] & 0x01, x, y); 349 #endif 350 351 s = spltty(); 352 wsmouse_input(sc->sc_wsmousedev, p[0] & 0x01, x, y, 0, 353 WSMOUSE_INPUT_ABSOLUTE_X | WSMOUSE_INPUT_ABSOLUTE_Y); 354 splx(s); 355 } 356 } 357