/* $OpenBSD: uhidev.c,v 1.16 2006/06/23 06:27:11 miod Exp $ */ /* $NetBSD: uhidev.c,v 1.14 2003/03/11 16:44:00 augustss Exp $ */ /* * Copyright (c) 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson (lennart@augustsson.net) at * Carlstedt Research & Technology. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* Report descriptor for broken Wacom Graphire */ #include #ifdef UHIDEV_DEBUG #define DPRINTF(x) do { if (uhidevdebug) logprintf x; } while (0) #define DPRINTFN(n,x) do { if (uhidevdebug>(n)) logprintf x; } while (0) int uhidevdebug = 0; #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif Static void uhidev_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); Static int uhidev_maxrepid(void *buf, int len); Static int uhidevprint(void *aux, const char *pnp); #if defined(__NetBSD__) Static int uhidevsubmatch(struct device *parent, struct cfdata *cf, void *aux); #else Static int uhidevsubmatch(struct device *parent, void *cf, void *aux); #endif USB_DECLARE_DRIVER(uhidev); USB_MATCH(uhidev) { USB_MATCH_START(uhidev, uaa); usb_interface_descriptor_t *id; if (uaa->iface == NULL) return (UMATCH_NONE); id = usbd_get_interface_descriptor(uaa->iface); if (id == NULL || id->bInterfaceClass != UICLASS_HID) return (UMATCH_NONE); if (usbd_get_quirks(uaa->device)->uq_flags & UQ_BAD_HID) return (UMATCH_NONE); if (uaa->matchlvl) return (uaa->matchlvl); #ifdef __macppc__ /* * Some Apple laptops have USB phantom devices which match * the ADB devices. We want to ignore them to avoid * confusing users, as the real hardware underneath is adb * and has already attached. */ if (uaa->vendor == USB_VENDOR_APPLE && uaa->product == USB_PRODUCT_APPLE_ADB) return (UMATCH_NONE); #endif return (UMATCH_IFACECLASS_GENERIC); } USB_ATTACH(uhidev) { USB_ATTACH_START(uhidev, sc, uaa); usbd_interface_handle iface = uaa->iface; usb_interface_descriptor_t *id; usb_endpoint_descriptor_t *ed; struct uhidev_attach_arg uha; struct uhidev *dev; int size, nrepid, repid, repsz; int repsizes[256]; void *desc; const void *descptr; usbd_status err; char *devinfop; sc->sc_udev = uaa->device; sc->sc_iface = iface; id = usbd_get_interface_descriptor(iface); devinfop = usbd_devinfo_alloc(uaa->device, 0); USB_ATTACH_SETUP; printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), devinfop, id->bInterfaceClass, id->bInterfaceSubClass); usbd_devinfo_free(devinfop); (void)usbd_set_idle(iface, 0, 0); #if 0 qflags = usbd_get_quirks(sc->sc_udev)->uq_flags; if ((qflags & UQ_NO_SET_PROTO) == 0 && id->bInterfaceSubClass != UISUBCLASS_BOOT) (void)usbd_set_protocol(iface, 1); #endif ed = usbd_interface2endpoint_descriptor(iface, 0); if (ed == NULL) { printf("%s: could not read endpoint descriptor\n", USBDEVNAME(sc->sc_dev)); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } DPRINTFN(10,("uhidev_attach: bLength=%d bDescriptorType=%d " "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d" " bInterval=%d\n", ed->bLength, ed->bDescriptorType, ed->bEndpointAddress & UE_ADDR, UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out", ed->bmAttributes & UE_XFERTYPE, UGETW(ed->wMaxPacketSize), ed->bInterval)); if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN || (ed->bmAttributes & UE_XFERTYPE) != UE_INTERRUPT) { printf("%s: unexpected endpoint\n", USBDEVNAME(sc->sc_dev)); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } sc->sc_ep_addr = ed->bEndpointAddress; /* XXX need to extend this */ descptr = NULL; if (uaa->vendor == USB_VENDOR_WACOM) { static uByte reportbuf[] = {2, 2, 2}; /* The report descriptor for the Wacom Graphire is broken. */ switch (uaa->product) { case USB_PRODUCT_WACOM_GRAPHIRE: size = sizeof uhid_graphire_report_descr; descptr = uhid_graphire_report_descr; break; case USB_PRODUCT_WACOM_GRAPHIRE3_4X5: case USB_PRODUCT_WACOM_GRAPHIRE4_4X5: usbd_set_report(uaa->iface, UHID_FEATURE_REPORT, 2, &reportbuf, sizeof reportbuf); size = sizeof uhid_graphire3_4x5_report_descr; descptr = uhid_graphire3_4x5_report_descr; break; default: /* Keep descriptor */ break; } } if (descptr) { desc = malloc(size, M_USBDEV, M_NOWAIT); if (desc == NULL) err = USBD_NOMEM; else { err = USBD_NORMAL_COMPLETION; memcpy(desc, descptr, size); } } else { desc = NULL; err = usbd_read_report_desc(uaa->iface, &desc, &size, M_USBDEV); } if (err) { printf("%s: no report descriptor\n", USBDEVNAME(sc->sc_dev)); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } sc->sc_repdesc = desc; sc->sc_repdesc_size = size; uha.uaa = uaa; nrepid = uhidev_maxrepid(desc, size); if (nrepid < 0) USB_ATTACH_SUCCESS_RETURN; if (nrepid > 0) printf("%s: %d report ids\n", USBDEVNAME(sc->sc_dev), nrepid); nrepid++; sc->sc_subdevs = malloc(nrepid * sizeof(device_ptr_t), M_USBDEV, M_NOWAIT); bzero(sc->sc_subdevs, nrepid * sizeof(device_ptr_t)); if (sc->sc_subdevs == NULL) { printf("%s: no memory\n", USBDEVNAME(sc->sc_dev)); USB_ATTACH_ERROR_RETURN; } sc->sc_nrepid = nrepid; sc->sc_isize = 0; usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, USBDEV(sc->sc_dev)); for (repid = 0; repid < nrepid; repid++) { repsz = hid_report_size(desc, size, hid_input, repid); DPRINTF(("uhidev_match: repid=%d, repsz=%d\n", repid, repsz)); repsizes[repid] = repsz; if (repsz > 0) { if (repsz > sc->sc_isize) sc->sc_isize = repsz; } } sc->sc_isize += nrepid != 1; /* space for report ID */ DPRINTF(("uhidev_attach: isize=%d\n", sc->sc_isize)); uha.parent = sc; for (repid = 0; repid < nrepid; repid++) { DPRINTF(("uhidev_match: try repid=%d\n", repid)); if (hid_report_size(desc, size, hid_input, repid) == 0 && hid_report_size(desc, size, hid_output, repid) == 0 && hid_report_size(desc, size, hid_feature, repid) == 0) { ; /* already NULL in sc->sc_subdevs[repid] */ } else { uha.reportid = repid; dev = (struct uhidev *)config_found_sm(self, &uha, uhidevprint, uhidevsubmatch); sc->sc_subdevs[repid] = dev; if (dev != NULL) { dev->sc_in_rep_size = repsizes[repid]; #ifdef DIAGNOSTIC DPRINTF(("uhidev_match: repid=%d dev=%p\n", repid, dev)); if (dev->sc_intr == NULL) { printf("%s: sc_intr == NULL\n", USBDEVNAME(sc->sc_dev)); USB_ATTACH_ERROR_RETURN; } #endif } } } USB_ATTACH_SUCCESS_RETURN; } int uhidev_maxrepid(void *buf, int len) { struct hid_data *d; struct hid_item h; int maxid; maxid = -1; h.report_ID = 0; for (d = hid_start_parse(buf, len, hid_none); hid_get_item(d, &h); ) if (h.report_ID > maxid) maxid = h.report_ID; hid_end_parse(d); return (maxid); } int uhidevprint(void *aux, const char *pnp) { struct uhidev_attach_arg *uha = aux; if (pnp) printf("uhid at %s", pnp); if (uha->reportid != 0) printf(" reportid %d", uha->reportid); return (UNCONF); } #if defined(__NetBSD__) Static int uhidevsubmatch(struct device *parent, struct cfdata *cf, void *aux) #else Static int uhidevsubmatch(struct device *parent, void *match, void *aux) #endif { struct uhidev_attach_arg *uha = aux; #if defined(__OpenBSD__) struct cfdata *cf = match; #endif if (cf->uhidevcf_reportid != UHIDEV_UNK_REPORTID && cf->uhidevcf_reportid != uha->reportid) return (0); if (cf->uhidevcf_reportid == uha->reportid) uha->matchlvl = UMATCH_VENDOR_PRODUCT; else uha->matchlvl = 0; return ((*cf->cf_attach->ca_match)(parent, cf, aux)); } int uhidev_activate(device_ptr_t self, enum devact act) { struct uhidev_softc *sc = (struct uhidev_softc *)self; int i, rv = 0; switch (act) { case DVACT_ACTIVATE: break; case DVACT_DEACTIVATE: for (i = 0; i < sc->sc_nrepid; i++) if (sc->sc_subdevs[i] != NULL) rv |= config_deactivate( &sc->sc_subdevs[i]->sc_dev); sc->sc_dying = 1; break; } return (rv); } USB_DETACH(uhidev) { USB_DETACH_START(uhidev, sc); int i, rv; DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags)); sc->sc_dying = 1; if (sc->sc_intrpipe != NULL) usbd_abort_pipe(sc->sc_intrpipe); if (sc->sc_repdesc != NULL) free(sc->sc_repdesc, M_USBDEV); rv = 0; for (i = 0; i < sc->sc_nrepid; i++) { if (sc->sc_subdevs[i] != NULL) { rv |= config_detach(&sc->sc_subdevs[i]->sc_dev, flags); sc->sc_subdevs[i] = NULL; } } usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, USBDEV(sc->sc_dev)); return (rv); } void uhidev_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) { struct uhidev_softc *sc = addr; struct uhidev *scd; u_char *p; u_int rep; u_int32_t cc; usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL); #ifdef UHIDEV_DEBUG if (uhidevdebug > 5) { u_int32_t i; DPRINTF(("uhidev_intr: status=%d cc=%d\n", status, cc)); DPRINTF(("uhidev_intr: data =")); for (i = 0; i < cc; i++) DPRINTF((" %02x", sc->sc_ibuf[i])); DPRINTF(("\n")); } #endif if (status == USBD_CANCELLED) return; if (status != USBD_NORMAL_COMPLETION) { DPRINTF(("%s: interrupt status=%d\n", USBDEVNAME(sc->sc_dev), status)); usbd_clear_endpoint_stall_async(sc->sc_intrpipe); return; } p = sc->sc_ibuf; if (sc->sc_nrepid != 1) rep = *p++, cc--; else rep = 0; if (rep >= sc->sc_nrepid) { printf("uhidev_intr: bad repid %d\n", rep); return; } scd = sc->sc_subdevs[rep]; DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n", rep, scd, scd ? scd->sc_state : 0)); if (scd == NULL || !(scd->sc_state & UHIDEV_OPEN)) return; #ifdef DIAGNOSTIC if (scd->sc_in_rep_size != cc) printf("%s: bad input length %d != %d\n",USBDEVNAME(sc->sc_dev), scd->sc_in_rep_size, cc); #endif scd->sc_intr(scd, p, cc); } void uhidev_get_report_desc(struct uhidev_softc *sc, void **desc, int *size) { *desc = sc->sc_repdesc; *size = sc->sc_repdesc_size; } int uhidev_open(struct uhidev *scd) { struct uhidev_softc *sc = scd->sc_parent; usbd_status err; DPRINTF(("uhidev_open: open pipe, state=%d refcnt=%d\n", scd->sc_state, sc->sc_refcnt)); if (scd->sc_state & UHIDEV_OPEN) return (EBUSY); scd->sc_state |= UHIDEV_OPEN; if (sc->sc_refcnt++) return (0); if (sc->sc_isize == 0) return (0); sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); /* Set up interrupt pipe. */ DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize, sc->sc_ep_addr)); err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr, USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc, sc->sc_ibuf, sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL); if (err) { DPRINTF(("uhidopen: usbd_open_pipe_intr failed, " "error=%d\n",err)); free(sc->sc_ibuf, M_USBDEV); scd->sc_state &= ~UHIDEV_OPEN; sc->sc_refcnt = 0; sc->sc_intrpipe = NULL; return (EIO); } return (0); } void uhidev_close(struct uhidev *scd) { struct uhidev_softc *sc = scd->sc_parent; if (!(scd->sc_state & UHIDEV_OPEN)) return; scd->sc_state &= ~UHIDEV_OPEN; if (--sc->sc_refcnt) return; DPRINTF(("uhidev_close: close pipe\n")); /* Disable interrupts. */ if (sc->sc_intrpipe != NULL) { usbd_abort_pipe(sc->sc_intrpipe); usbd_close_pipe(sc->sc_intrpipe); sc->sc_intrpipe = NULL; } if (sc->sc_ibuf != NULL) { free(sc->sc_ibuf, M_USBDEV); sc->sc_ibuf = NULL; } } usbd_status uhidev_set_report(struct uhidev *scd, int type, void *data, int len) { char *buf; usbd_status retstat; if (scd->sc_report_id == 0) return usbd_set_report(scd->sc_parent->sc_iface, type, scd->sc_report_id, data, len); buf = malloc(len + 1, M_TEMP, M_WAITOK); buf[0] = scd->sc_report_id; memcpy(buf+1, data, len); retstat = usbd_set_report(scd->sc_parent->sc_iface, type, scd->sc_report_id, data, len + 1); free(buf, M_TEMP); return retstat; } void uhidev_set_report_async(struct uhidev *scd, int type, void *data, int len) { /* XXX */ char buf[100]; if (scd->sc_report_id) { buf[0] = scd->sc_report_id; memcpy(buf+1, data, len); len++; data = buf; } usbd_set_report_async(scd->sc_parent->sc_iface, type, scd->sc_report_id, data, len); } usbd_status uhidev_get_report(struct uhidev *scd, int type, void *data, int len) { return usbd_get_report(scd->sc_parent->sc_iface, type, scd->sc_report_id, data, len); }