3975e3a1ea
new USB2 stack will fully replace this for 8.0. Remove kernel modules, a subsequent commit will update conf/files. Unhook usbdevs from the build.
377 lines
8.6 KiB
C
377 lines
8.6 KiB
C
/*-
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* Copyright (c) 2001-2007 M. Warner Losh
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This code is based on ugen.c and ulpt.c developed by Lennart Augustsson.
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* This code includes software developed by the NetBSD Foundation, Inc. and
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* its contributors.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/ioccom.h>
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#include <sys/fcntl.h>
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#include <sys/filio.h>
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#include <sys/conf.h>
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#include <sys/uio.h>
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#include <sys/tty.h>
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#include <sys/file.h>
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#include <sys/selinfo.h>
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#include <sys/poll.h>
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#include <sys/sysctl.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdi_util.h>
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#include "usbdevs.h"
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#include <dev/usb/dsbr100io.h>
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#ifdef USB_DEBUG
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#define DPRINTF(x) if (ufmdebug) printf x
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#define DPRINTFN(n,x) if (ufmdebug>(n)) printf x
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int ufmdebug = 0;
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SYSCTL_NODE(_hw_usb, OID_AUTO, ufm, CTLFLAG_RW, 0, "USB ufm");
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SYSCTL_INT(_hw_usb_ufm, OID_AUTO, debug, CTLFLAG_RW,
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&ufmdebug, 0, "ufm debug level");
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n,x)
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#endif
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d_open_t ufmopen;
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d_close_t ufmclose;
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d_ioctl_t ufmioctl;
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static struct cdevsw ufm_cdevsw = {
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.d_version = D_VERSION,
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.d_flags = D_NEEDGIANT,
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.d_open = ufmopen,
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.d_close = ufmclose,
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.d_ioctl = ufmioctl,
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.d_name = "ufm",
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};
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#define FM_CMD0 0x00
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#define FM_CMD_SET_FREQ 0x01
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#define FM_CMD2 0x02
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struct ufm_softc {
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device_t sc_dev;
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usbd_device_handle sc_udev;
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usbd_interface_handle sc_iface;
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int sc_opened;
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int sc_epaddr;
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int sc_freq;
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int sc_refcnt;
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};
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#define UFMUNIT(n) (dev2unit(n))
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static device_probe_t ufm_match;
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static device_attach_t ufm_attach;
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static device_detach_t ufm_detach;
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static device_method_t ufm_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, ufm_match),
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DEVMETHOD(device_attach, ufm_attach),
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DEVMETHOD(device_detach, ufm_detach),
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{ 0, 0 }
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};
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static driver_t ufm_driver = {
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"ufm",
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ufm_methods,
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sizeof(struct ufm_softc)
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};
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static devclass_t ufm_devclass;
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static int
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ufm_match(device_t self)
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{
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struct usb_attach_arg *uaa = device_get_ivars(self);
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usb_device_descriptor_t *dd;
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DPRINTFN(10,("ufm_match\n"));
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if (!uaa->iface)
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return UMATCH_NONE;
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dd = usbd_get_device_descriptor(uaa->device);
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if (dd &&
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((UGETW(dd->idVendor) == USB_VENDOR_CYPRESS &&
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UGETW(dd->idProduct) == USB_PRODUCT_CYPRESS_FMRADIO)))
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return UMATCH_VENDOR_PRODUCT;
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else
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return UMATCH_NONE;
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}
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static int
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ufm_attach(device_t self)
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{
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struct ufm_softc *sc = device_get_softc(self);
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struct usb_attach_arg *uaa = device_get_ivars(self);
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usb_endpoint_descriptor_t *edesc;
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usbd_device_handle udev;
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usbd_interface_handle iface;
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u_int8_t epcount;
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usbd_status r;
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char * ermsg = "<none>";
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DPRINTFN(10,("ufm_attach: sc=%p\n", sc));
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sc->sc_dev = self;
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sc->sc_udev = udev = uaa->device;
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if ((!uaa->device) || (!uaa->iface)) {
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ermsg = "device or iface";
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goto nobulk;
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}
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sc->sc_iface = iface = uaa->iface;
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sc->sc_opened = 0;
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sc->sc_refcnt = 0;
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r = usbd_endpoint_count(iface, &epcount);
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if (r != USBD_NORMAL_COMPLETION) {
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ermsg = "endpoints";
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goto nobulk;
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}
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edesc = usbd_interface2endpoint_descriptor(iface, 0);
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if (!edesc) {
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ermsg = "interface endpoint";
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goto nobulk;
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}
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sc->sc_epaddr = edesc->bEndpointAddress;
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/* XXX no error trapping, no storing of struct cdev **/
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(void) make_dev(&ufm_cdevsw, device_get_unit(self),
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UID_ROOT, GID_OPERATOR,
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0644, "ufm%d", device_get_unit(self));
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DPRINTFN(10, ("ufm_attach: %p\n", sc->sc_udev));
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return 0;
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nobulk:
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device_printf(sc->sc_dev, "could not find %s\n", ermsg);
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return ENXIO;
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}
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int
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ufmopen(struct cdev *dev, int flag, int mode, struct thread *td)
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{
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struct ufm_softc *sc;
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int unit = UFMUNIT(dev);
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sc = devclass_get_softc(ufm_devclass, unit);
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if (sc == NULL)
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return (ENXIO);
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DPRINTFN(5, ("ufmopen: flag=%d, mode=%d, unit=%d\n",
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flag, mode, unit));
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if (sc->sc_opened)
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return (EBUSY);
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if ((flag & (FWRITE|FREAD)) != (FWRITE|FREAD))
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return (EACCES);
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sc->sc_opened = 1;
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return (0);
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}
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int
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ufmclose(struct cdev *dev, int flag, int mode, struct thread *td)
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{
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struct ufm_softc *sc;
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int unit = UFMUNIT(dev);
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sc = devclass_get_softc(ufm_devclass, unit);
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DPRINTFN(5, ("ufmclose: flag=%d, mode=%d, unit=%d\n", flag, mode, unit));
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sc->sc_opened = 0;
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sc->sc_refcnt = 0;
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return 0;
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}
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static int
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ufm_do_req(struct ufm_softc *sc, u_int8_t reqtype, u_int8_t request,
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u_int16_t value, u_int16_t index, u_int8_t len, void *retbuf)
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{
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int s;
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usb_device_request_t req;
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usbd_status err;
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s = splusb();
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req.bmRequestType = reqtype;
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req.bRequest = request;
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USETW(req.wValue, value);
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USETW(req.wIndex, index);
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USETW(req.wLength, len);
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err = usbd_do_request_flags(sc->sc_udev, &req, retbuf, 0, NULL,
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USBD_DEFAULT_TIMEOUT);
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splx(s);
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if (err)
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return (EIO);
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return (0);
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}
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static int
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ufm_set_freq(struct ufm_softc *sc, caddr_t addr)
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{
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int freq = *(int *)addr;
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u_int8_t ret;
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/*
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* Freq now is in Hz. We need to convert it to the frequency
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* that the radio wants. This frequency is 10.7MHz above
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* the actual frequency. We then need to convert to
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* units of 12.5kHz. We add one to the IFM to make rounding
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* easier.
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*/
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sc->sc_freq = freq;
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freq = (freq + 10700001) / 12500;
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/* This appears to set the frequency */
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if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD_SET_FREQ, freq >> 8,
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freq, 1, &ret) != 0)
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return (EIO);
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/* Not sure what this does */
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if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD0, 0x96, 0xb7, 1,
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&ret) != 0)
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return (EIO);
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return (0);
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}
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static int
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ufm_get_freq(struct ufm_softc *sc, caddr_t addr)
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{
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int *valp = (int *)addr;
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*valp = sc->sc_freq;
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return (0);
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}
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static int
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ufm_start(struct ufm_softc *sc, caddr_t addr)
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{
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u_int8_t ret;
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if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD0, 0x00, 0xc7,
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1, &ret))
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return (EIO);
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if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD2, 0x01, 0x00,
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1, &ret))
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return (EIO);
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if (ret & 0x1)
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return (EIO);
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return (0);
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}
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static int
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ufm_stop(struct ufm_softc *sc, caddr_t addr)
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{
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u_int8_t ret;
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if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD0, 0x16, 0x1C,
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1, &ret))
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return (EIO);
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if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD2, 0x00, 0x00,
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1, &ret))
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return (EIO);
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return (0);
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}
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static int
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ufm_get_stat(struct ufm_softc *sc, caddr_t addr)
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{
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u_int8_t ret;
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/*
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* Note, there's a 240ms settle time before the status
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* will be valid, so tsleep that amount. hz/4 is a good
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* approximation of that. Since this is a short sleep
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* we don't try to catch any signals to keep things
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* simple.
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*/
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tsleep(sc, 0, "ufmwait", hz/4);
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if (ufm_do_req(sc, UT_READ_VENDOR_DEVICE, FM_CMD0, 0x00, 0x24,
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1, &ret))
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return (EIO);
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*(int *)addr = ret;
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return (0);
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}
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int
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ufmioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
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{
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struct ufm_softc *sc;
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int unit = UFMUNIT(dev);
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int error = 0;
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sc = devclass_get_softc(ufm_devclass, unit);
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switch (cmd) {
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case FM_SET_FREQ:
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error = ufm_set_freq(sc, addr);
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break;
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case FM_GET_FREQ:
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error = ufm_get_freq(sc, addr);
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break;
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case FM_START:
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error = ufm_start(sc, addr);
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break;
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case FM_STOP:
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error = ufm_stop(sc, addr);
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break;
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case FM_GET_STAT:
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error = ufm_get_stat(sc, addr);
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break;
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default:
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return ENOTTY;
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break;
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}
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return error;
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}
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static int
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ufm_detach(device_t self)
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{
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return 0;
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}
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MODULE_DEPEND(ufm, usb, 1, 1, 1);
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DRIVER_MODULE(ufm, uhub, ufm_driver, ufm_devclass, usbd_driver_load, 0);
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