/* * Copyright (c) 2001 M. Warner Losh * All rights reserved. * * 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 AUTHOR 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 AUTHOR 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. * * This code is based on ugen.c and ulpt.c developed by Lennart Augustsson. * This code includes software developed by the NetBSD Foundation, Inc. and * its contributors. */ /* $FreeBSD: src/sys/dev/usb/ufm.c,v 1.1.2.3 2002/11/06 14:41:01 joe Exp $ */ /* $DragonFly: src/sys/dev/usbmisc/ufm/ufm.c,v 1.2 2003/06/17 04:28:32 dillon Exp $ */ #include #include #include #include #if defined(__NetBSD__) #include #include #elif defined(__FreeBSD__) #include #include #include #endif #include #include #include #include #include #include #if __FreeBSD_version >= 500014 #include #else #include #endif #include #include #include #include #include #include #include #include #ifdef USB_DEBUG #define DPRINTF(x) if (ufmdebug) logprintf x #define DPRINTFN(n,x) if (ufmdebug>(n)) logprintf x int ufmdebug = 0; SYSCTL_NODE(_hw_usb, OID_AUTO, ufm, CTLFLAG_RW, 0, "USB ufm"); SYSCTL_INT(_hw_usb_ufm, OID_AUTO, debug, CTLFLAG_RW, &ufmdebug, 0, "ufm debug level"); #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif #if defined(__NetBSD__) || defined(__OpenBSD__) int ufmopen(dev_t, int, int, usb_proc_ptr); int ufmclose(dev_t, int, int, usb_proc_ptr); int ufmioctl(dev_t, u_long, caddr_t, int, usb_proc_ptr); cdev_decl(ufm); #elif defined(__FreeBSD__) d_open_t ufmopen; d_close_t ufmclose; d_ioctl_t ufmioctl; #define UFM_CDEV_MAJOR 200 Static struct cdevsw ufm_cdevsw = { ufmopen, ufmclose, noread, nowrite, ufmioctl, nopoll, nommap, nostrategy, "ufm", UFM_CDEV_MAJOR, nodump, nopsize, 0, #if (__FreeBSD__ < 5) -1 #endif }; #endif /*defined(__FreeBSD__)*/ #define FM_CMD0 0x00 #define FM_CMD_SET_FREQ 0x01 #define FM_CMD2 0x02 struct ufm_softc { USBBASEDEVICE sc_dev; usbd_device_handle sc_udev; usbd_interface_handle sc_iface; int sc_opened; int sc_epaddr; int sc_freq; int sc_refcnt; #if defined(__NetBSD__) || defined(__OpenBSD__) u_char sc_dying; #endif }; #define UFMUNIT(n) (minor(n)) USB_DECLARE_DRIVER(ufm); USB_MATCH(ufm) { USB_MATCH_START(ufm, uaa); usb_device_descriptor_t *dd; DPRINTFN(10,("ufm_match\n")); if (!uaa->iface) return UMATCH_NONE; dd = usbd_get_device_descriptor(uaa->device); if (dd && ((UGETW(dd->idVendor) == USB_VENDOR_CYPRESS && UGETW(dd->idProduct) == USB_PRODUCT_CYPRESS_FMRADIO))) return UMATCH_VENDOR_PRODUCT; else return UMATCH_NONE; } USB_ATTACH(ufm) { USB_ATTACH_START(ufm, sc, uaa); char devinfo[1024]; usb_endpoint_descriptor_t *edesc; usbd_device_handle udev; usbd_interface_handle iface; u_int8_t epcount; #if defined(__NetBSD__) || defined(__OpenBSD__) u_int8_t niface; #endif usbd_status r; char * ermsg = ""; DPRINTFN(10,("ufm_attach: sc=%p\n", sc)); usbd_devinfo(uaa->device, 0, devinfo); USB_ATTACH_SETUP; printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); sc->sc_udev = udev = uaa->device; #if defined(__FreeBSD__) if ((!uaa->device) || (!uaa->iface)) { ermsg = "device or iface"; goto nobulk; } sc->sc_iface = iface = uaa->iface; #elif defined(__NetBSD__) || defined(__OpenBSD__) if (!udev) { ermsg = "device"; goto nobulk; } r = usbd_interface_count(udev, &niface); if (r) { ermsg = "iface"; goto nobulk; } r = usbd_device2interface_handle(udev, 0, &iface); if (r) { ermsg = "iface"; goto nobulk; } sc->sc_iface = iface; #endif sc->sc_opened = 0; sc->sc_refcnt = 0; r = usbd_endpoint_count(iface, &epcount); if (r != USBD_NORMAL_COMPLETION) { ermsg = "endpoints"; goto nobulk; } edesc = usbd_interface2endpoint_descriptor(iface, 0); if (!edesc) { ermsg = "interface endpoint"; goto nobulk; } sc->sc_epaddr = edesc->bEndpointAddress; #if defined(__FreeBSD__) /* XXX no error trapping, no storing of dev_t */ (void) make_dev(&ufm_cdevsw, device_get_unit(self), UID_ROOT, GID_OPERATOR, 0644, "ufm%d", device_get_unit(self)); #elif defined(__NetBSD__) || defined(__OpenBSD__) usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, USBDEV(sc->sc_dev)); #endif DPRINTFN(10, ("ufm_attach: %p\n", sc->sc_udev)); USB_ATTACH_SUCCESS_RETURN; nobulk: printf("%s: could not find %s\n", USBDEVNAME(sc->sc_dev),ermsg); USB_ATTACH_ERROR_RETURN; } int ufmopen(dev_t dev, int flag, int mode, usb_proc_ptr td) { struct ufm_softc *sc; int unit = UFMUNIT(dev); USB_GET_SC_OPEN(ufm, unit, sc); DPRINTFN(5, ("ufmopen: flag=%d, mode=%d, unit=%d\n", flag, mode, unit)); if (sc->sc_opened) return (EBUSY); if ((flag & (FWRITE|FREAD)) != (FWRITE|FREAD)) return (EACCES); sc->sc_opened = 1; return (0); } int ufmclose(dev_t dev, int flag, int mode, usb_proc_ptr td) { struct ufm_softc *sc; int unit = UFMUNIT(dev); USB_GET_SC(ufm, unit, sc); DPRINTFN(5, ("ufmclose: flag=%d, mode=%d, unit=%d\n", flag, mode, unit)); sc->sc_opened = 0; sc->sc_refcnt = 0; return 0; } static int ufm_do_req(struct ufm_softc *sc, u_int8_t reqtype, u_int8_t request, u_int16_t value, u_int16_t index, u_int8_t len, void *retbuf) { int s; usb_device_request_t req; usbd_status err; s = splusb(); req.bmRequestType = reqtype; req.bRequest = request; USETW(req.wValue, value); USETW(req.wIndex, index); USETW(req.wLength, len); err = usbd_do_request_flags(sc->sc_udev, &req, retbuf, 0, NULL); splx(s); if (err) { printf("usbd_do_request_flags returned %#x\n", err); return (EIO); } return (0); } static int ufm_set_freq(struct ufm_softc *sc, caddr_t addr) { int freq = *(int *)addr; u_int8_t ret; /* * Freq now is in Hz. We need to convert it to the frequency * that the radio wants. This frequency is 10.7MHz above * the actual frequency. We then need to convert to * units of 12.5kHz. We add one to the IFM to make rounding * easier. */ sc->sc_freq = freq; freq = (freq + 10700001) / 12500; /* This appears to set the frequency */ if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD_SET_FREQ, freq >> 8, freq, 1, &ret) != 0) return (EIO); /* Not sure what this does */ if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD0, 0x96, 0xb7, 1, &ret) != 0) return (EIO); return (0); } static int ufm_get_freq(struct ufm_softc *sc, caddr_t addr) { int *valp = (int *)addr; *valp = sc->sc_freq; return (0); } static int ufm_start(struct ufm_softc *sc, caddr_t addr) { u_int8_t ret; if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD0, 0x00, 0xc7, 1, &ret)) return (EIO); if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD2, 0x01, 0x00, 1, &ret)) return (EIO); if (ret & 0x1) return (EIO); return (0); } static int ufm_stop(struct ufm_softc *sc, caddr_t addr) { u_int8_t ret; if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD0, 0x16, 0x1C, 1, &ret)) return (EIO); if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD2, 0x00, 0x00, 1, &ret)) return (EIO); return (0); } static int ufm_get_stat(struct ufm_softc *sc, caddr_t addr) { u_int8_t ret; /* * Note, there's a 240ms settle time before the status * will be valid, so tsleep that amount. hz/4 is a good * approximation of that. Since this is a short sleep * we don't try to catch any signals to keep things * simple. */ tsleep(sc, 0, "ufmwait", hz/4); if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD0, 0x00, 0x24, 1, &ret)) return (EIO); *(int *)addr = ret; return (0); } int ufmioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, usb_proc_ptr td) { struct ufm_softc *sc; int unit = UFMUNIT(dev); int error = 0; USB_GET_SC(ufm, unit, sc); switch (cmd) { case FM_SET_FREQ: error = ufm_set_freq(sc, addr); break; case FM_GET_FREQ: error = ufm_get_freq(sc, addr); break; case FM_START: error = ufm_start(sc, addr); break; case FM_STOP: error = ufm_stop(sc, addr); break; case FM_GET_STAT: error = ufm_get_stat(sc, addr); break; default: return ENOTTY; break; } return error; } #if defined(__NetBSD__) || defined(__OpenBSD__) int ufm_activate(device_ptr_t self, enum devact act) { struct ufm_softc *sc = (struct ufm_softc *)self; switch (act) { case DVACT_ACTIVATE: return (EOPNOTSUPP); break; case DVACT_DEACTIVATE: sc->sc_dying = 1; break; } return (0); } USB_DETACH(ufm) { USB_DETACH_START(ufm, sc); struct ufm_endpoint *sce; int i, dir; int s; #if defined(__NetBSD__) || defined(__OpenBSD__) int maj, mn; DPRINTF(("ufm_detach: sc=%p flags=%d\n", sc, flags)); #elif defined(__FreeBSD__) DPRINTF(("ufm_detach: sc=%p\n", sc)); #endif sc->sc_dying = 1; s = splusb(); if (--sc->sc_refcnt >= 0) { /* Wait for processes to go away. */ usb_detach_wait(USBDEV(sc->sc_dev)); } splx(s); #if defined(__NetBSD__) || defined(__OpenBSD__) /* locate the major number */ for (maj = 0; maj < nchrdev; maj++) if (cdevsw[maj].d_open == ufmopen) break; /* Nuke the vnodes for any open instances (calls close). */ mn = self->dv_unit * USB_MAX_ENDPOINTS; vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); #elif defined(__FreeBSD__) /* XXX not implemented yet */ #endif usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, USBDEV(sc->sc_dev)); return (0); } #endif /* defined(__NetBSD__) || defined(__OpenBSD__) */ #if defined(__FreeBSD__) Static int ufm_detach(device_t self) { DPRINTF(("%s: disconnected\n", USBDEVNAME(self))); return 0; } DRIVER_MODULE(ufm, uhub, ufm_driver, ufm_devclass, usbd_driver_load, 0); #endif