/* $NetBSD: uhidev.c,v 1.45 2009/11/12 19:58:27 dyoung 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. * * 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 __KERNEL_RCSID(0, "$NetBSD: uhidev.c,v 1.45 2009/11/12 19:58:27 dyoung Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* Report descriptor for broken Wacom Graphire */ #include #include "locators.h" #ifdef UHIDEV_DEBUG #define DPRINTF(x) if (uhidevdebug) logprintf x #define DPRINTFN(n,x) if (uhidevdebug>(n)) logprintf x 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 *, int); Static int uhidevprint(void *, const char *); int uhidev_match(device_t, cfdata_t, void *); void uhidev_attach(device_t, device_t, void *); void uhidev_childdet(device_t, device_t); int uhidev_detach(device_t, int); int uhidev_activate(device_t, enum devact); extern struct cfdriver uhidev_cd; CFATTACH_DECL2_NEW(uhidev, sizeof(struct uhidev_softc), uhidev_match, uhidev_attach, uhidev_detach, uhidev_activate, NULL, uhidev_childdet); USB_MATCH(uhidev) { USB_IFMATCH_START(uhidev, uaa); if (uaa->class != UICLASS_HID) return (UMATCH_NONE); if (usbd_get_quirks(uaa->device)->uq_flags & UQ_HID_IGNORE) return (UMATCH_NONE); return (UMATCH_IFACECLASS_GENERIC); } USB_ATTACH(uhidev) { USB_IFATTACH_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; device_t dev; struct uhidev *csc; int maxinpktsize, size, nrepid, repid, repsz; int *repsizes; int i; void *desc; const void *descptr; usbd_status err; char *devinfop; int locs[UHIDBUSCF_NLOCS]; sc->sc_dev = self; sc->sc_udev = uaa->device; sc->sc_iface = iface; aprint_naive("\n"); aprint_normal("\n"); id = usbd_get_interface_descriptor(iface); devinfop = usbd_devinfo_alloc(uaa->device, 0); aprint_normal_dev(self, "%s, iclass %d/%d\n", devinfop, id->bInterfaceClass, id->bInterfaceSubClass); usbd_devinfo_free(devinfop); if (!pmf_device_register(self, NULL, NULL)) aprint_error_dev(self, "couldn't establish power handler\n"); (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 maxinpktsize = 0; sc->sc_iep_addr = sc->sc_oep_addr = -1; for (i = 0; i < id->bNumEndpoints; i++) { ed = usbd_interface2endpoint_descriptor(iface, i); if (ed == NULL) { aprint_error_dev(self, "could not read endpoint descriptor\n"); 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) { maxinpktsize = UGETW(ed->wMaxPacketSize); sc->sc_iep_addr = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { sc->sc_oep_addr = ed->bEndpointAddress; } else { aprint_verbose_dev(self, "endpoint %d: ignored\n", i); } } /* * Check that we found an input interrupt endpoint. The output interrupt * endpoint is optional */ if (sc->sc_iep_addr == -1) { aprint_error_dev(self, "no input interrupt endpoint\n"); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } /* 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_GRAPHIRE3_6X8: case USB_PRODUCT_WACOM_GRAPHIRE4_4X5: /* The 6x8 too? */ /* * The Graphire3 needs 0x0202 to be written to * feature report ID 2 before it'll start * returning digitizer data. */ 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) { aprint_error_dev(self, "no report descriptor\n"); sc->sc_dying = 1; USB_ATTACH_ERROR_RETURN; } if (uaa->vendor == USB_VENDOR_HOSIDEN && uaa->product == USB_PRODUCT_HOSIDEN_PPP) { static uByte reportbuf[] = { 1 }; /* * This device was sold by Konami with its ParaParaParadise * game for PlayStation2. It needs to be "turned on" * before it will send any reports. */ usbd_set_report(uaa->iface, UHID_FEATURE_REPORT, 0, &reportbuf, sizeof reportbuf); } 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) aprint_normal_dev(self, "%d report ids\n", nrepid); nrepid++; repsizes = malloc(nrepid * sizeof(*repsizes), M_TEMP, M_NOWAIT); if (repsizes == NULL) goto nomem; sc->sc_subdevs = malloc(nrepid * sizeof(device_t), M_USBDEV, M_NOWAIT | M_ZERO); if (sc->sc_subdevs == NULL) { free(repsizes, M_TEMP); nomem: aprint_error_dev(self, "no memory\n"); USB_ATTACH_ERROR_RETURN; } /* Just request max packet size for the interrupt pipe */ sc->sc_isize = maxinpktsize; sc->sc_nrepid = nrepid; 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; } 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; locs[UHIDBUSCF_REPORTID] = repid; dev = config_found_sm_loc(self, "uhidbus", locs, &uha, uhidevprint, config_stdsubmatch); sc->sc_subdevs[repid] = dev; if (dev != NULL) { csc = device_private(dev); csc->sc_in_rep_size = repsizes[repid]; #ifdef DIAGNOSTIC DPRINTF(("uhidev_match: repid=%d dev=%p\n", repid, dev)); if (csc->sc_intr == NULL) { free(repsizes, M_TEMP); aprint_error_dev(self, "sc_intr == NULL\n"); USB_ATTACH_ERROR_RETURN; } #endif #if NRND > 0 rnd_attach_source(&csc->rnd_source, USBDEVNAME(dev), RND_TYPE_TTY, 0); #endif } } } free(repsizes, M_TEMP); 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) aprint_normal("uhid at %s", pnp); if (uha->reportid != 0) aprint_normal(" reportid %d", uha->reportid); return (UNCONF); } int uhidev_activate(device_t self, enum devact act) { struct uhidev_softc *sc = device_private(self); switch (act) { case DVACT_DEACTIVATE: sc->sc_dying = 1; return 0; default: return EOPNOTSUPP; } } void uhidev_childdet(device_t self, device_t child) { int i; struct uhidev_softc *sc = device_private(self); for (i = 0; i < sc->sc_nrepid; i++) { if (sc->sc_subdevs[i] == child) break; } KASSERT(i < sc->sc_nrepid); sc->sc_subdevs[i] = NULL; } USB_DETACH(uhidev) { USB_DETACH_START(uhidev, sc); int i, rv; #if NRND > 0 struct uhidev *csc; #endif DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags)); sc->sc_dying = 1; if (sc->sc_ipipe != NULL) usbd_abort_pipe(sc->sc_ipipe); 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) { #if NRND > 0 csc = device_private(sc->sc_subdevs[i]); rnd_detach_source(&csc->rnd_source); #endif rv |= config_detach(sc->sc_subdevs[i], flags); } } usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, USBDEV(sc->sc_dev)); pmf_device_deregister(self); return (rv); } void uhidev_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) { struct uhidev_softc *sc = addr; device_t cdev; 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_ipipe); 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; } cdev = sc->sc_subdevs[rep]; if (!cdev) return; scd = device_private(cdev); DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n", rep, scd, scd ? scd->sc_state : 0)); if (!(scd->sc_state & UHIDEV_OPEN)) return; 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); return; } #if NRND > 0 rnd_add_uint32(&scd->rnd_source, (uintptr_t)(sc->sc_ibuf)); #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; int error; 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 input interrupt pipe. */ DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize, sc->sc_iep_addr)); err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_iep_addr, USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_ibuf, sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL); if (err != USBD_NORMAL_COMPLETION) { DPRINTF(("uhidopen: usbd_open_pipe_intr failed, " "error=%d\n", err)); error = EIO; goto out1; } /* * Set up output interrupt pipe if an output interrupt endpoint * exists. */ if (sc->sc_oep_addr != -1) { DPRINTF(("uhidev_open: oep=0x%02x\n", sc->sc_oep_addr)); err = usbd_open_pipe(sc->sc_iface, sc->sc_oep_addr, 0, &sc->sc_opipe); if (err != USBD_NORMAL_COMPLETION) { DPRINTF(("uhidev_open: usbd_open_pipe failed, " "error=%d\n", err)); error = EIO; goto out2; } DPRINTF(("uhidev_open: sc->sc_opipe=%p\n", sc->sc_opipe)); sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev); if (sc->sc_oxfer == NULL) { DPRINTF(("uhidev_open: couldn't allocate an xfer\n")); error = ENOMEM; goto out3; } } return (0); out3: /* Abort output pipe */ usbd_close_pipe(sc->sc_opipe); out2: /* Abort input pipe */ usbd_close_pipe(sc->sc_ipipe); out1: DPRINTF(("uhidev_open: failed in someway")); free(sc->sc_ibuf, M_USBDEV); scd->sc_state &= ~UHIDEV_OPEN; sc->sc_refcnt = 0; sc->sc_ipipe = NULL; sc->sc_opipe = NULL; sc->sc_oxfer = NULL; return error; } 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")); if (sc->sc_oxfer != NULL) usbd_free_xfer(sc->sc_oxfer); /* Disable interrupts. */ if (sc->sc_opipe != NULL) { usbd_abort_pipe(sc->sc_opipe); usbd_close_pipe(sc->sc_opipe); sc->sc_opipe = NULL; } if (sc->sc_ipipe != NULL) { usbd_abort_pipe(sc->sc_ipipe); usbd_close_pipe(sc->sc_ipipe); sc->sc_ipipe = 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, buf, 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); } usbd_status uhidev_write(struct uhidev_softc *sc, void *data, int len) { DPRINTF(("uhidev_write: data=%p, len=%d\n", data, len)); if (sc->sc_opipe == NULL) return USBD_INVAL; #ifdef UHIDEV_DEBUG if (uhidevdebug > 50) { u_int32_t i; u_int8_t *d = data; DPRINTF(("uhidev_write: data =")); for (i = 0; i < len; i++) DPRINTF((" %02x", d[i])); DPRINTF(("\n")); } #endif return usbd_intr_transfer(sc->sc_oxfer, sc->sc_opipe, 0, USBD_NO_TIMEOUT, data, &len, "uhidevwi"); }