474 lines
11 KiB
C
474 lines
11 KiB
C
/*
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* Copyright (c) 2001 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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/* $FreeBSD$ */
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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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#if defined(__NetBSD__)
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#include <sys/device.h>
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#include <sys/ioctl.h>
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#elif defined(__FreeBSD__)
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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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#endif
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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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#if __FreeBSD_version >= 500014
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#include <sys/selinfo.h>
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#else
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#include <sys/select.h>
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#endif
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#include <sys/vnode.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 <dev/usb/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) logprintf x
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#define DPRINTFN(n,x) if (ufmdebug>(n)) logprintf 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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#if defined(__NetBSD__) || defined(__OpenBSD__)
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int ufmopen(dev_t, int, int, usb_proc_ptr);
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int ufmclose(dev_t, int, int, usb_proc_ptr);
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int ufmioctl(dev_t, u_long, caddr_t, int, usb_proc_ptr);
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cdev_decl(ufm);
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#elif defined(__FreeBSD__)
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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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#define UFM_CDEV_MAJOR 200
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Static struct cdevsw ufm_cdevsw = {
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ufmopen, ufmclose, noread, nowrite,
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ufmioctl, nopoll, nommap, nostrategy,
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"ufm", UFM_CDEV_MAJOR, nodump, nopsize,
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0,
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#if (__FreeBSD_version < 500014)
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-1
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#endif
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};
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#endif /*defined(__FreeBSD__)*/
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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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USBBASEDEVICE 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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#if defined(__NetBSD__) || defined(__OpenBSD__)
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u_char sc_dying;
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#endif
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};
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#define UFMUNIT(n) (minor(n))
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USB_DECLARE_DRIVER(ufm);
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USB_MATCH(ufm)
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{
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USB_MATCH_START(ufm, uaa);
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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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USB_ATTACH(ufm)
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{
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USB_ATTACH_START(ufm, sc, uaa);
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char devinfo[1024];
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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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#if defined(__NetBSD__) || defined(__OpenBSD__)
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u_int8_t niface;
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#endif
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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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usbd_devinfo(uaa->device, 0, devinfo);
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USB_ATTACH_SETUP;
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printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo);
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sc->sc_udev = udev = uaa->device;
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#if defined(__FreeBSD__)
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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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#elif defined(__NetBSD__) || defined(__OpenBSD__)
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if (!udev) {
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ermsg = "device";
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goto nobulk;
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}
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r = usbd_interface_count(udev, &niface);
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if (r) {
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ermsg = "iface";
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goto nobulk;
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}
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r = usbd_device2interface_handle(udev, 0, &iface);
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if (r) {
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ermsg = "iface";
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goto nobulk;
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}
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sc->sc_iface = iface;
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#endif
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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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#if defined(__FreeBSD__)
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/* XXX no error trapping, no storing of dev_t */
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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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#elif defined(__NetBSD__) || defined(__OpenBSD__)
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usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
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USBDEV(sc->sc_dev));
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#endif
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DPRINTFN(10, ("ufm_attach: %p\n", sc->sc_udev));
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USB_ATTACH_SUCCESS_RETURN;
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nobulk:
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printf("%s: could not find %s\n", USBDEVNAME(sc->sc_dev),ermsg);
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USB_ATTACH_ERROR_RETURN;
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}
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int
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ufmopen(dev_t dev, int flag, int mode, usb_proc_ptr 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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USB_GET_SC_OPEN(ufm, unit, sc);
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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(dev_t dev, int flag, int mode, usb_proc_ptr 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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USB_GET_SC(ufm, unit, sc);
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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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printf("usbd_do_request_flags returned %#x\n", err);
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return (EIO);
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}
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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(dev_t dev, u_long cmd, caddr_t addr, int flag, usb_proc_ptr 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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USB_GET_SC(ufm, unit, sc);
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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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#if defined(__NetBSD__) || defined(__OpenBSD__)
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int
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ufm_activate(device_ptr_t self, enum devact act)
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{
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struct ufm_softc *sc = (struct ufm_softc *)self;
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switch (act) {
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case DVACT_ACTIVATE:
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return (EOPNOTSUPP);
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break;
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case DVACT_DEACTIVATE:
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sc->sc_dying = 1;
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break;
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}
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return (0);
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}
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USB_DETACH(ufm)
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{
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USB_DETACH_START(ufm, sc);
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struct ufm_endpoint *sce;
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int i, dir;
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int s;
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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int maj, mn;
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DPRINTF(("ufm_detach: sc=%p flags=%d\n", sc, flags));
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#elif defined(__FreeBSD__)
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DPRINTF(("ufm_detach: sc=%p\n", sc));
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#endif
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sc->sc_dying = 1;
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s = splusb();
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if (--sc->sc_refcnt >= 0) {
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/* Wait for processes to go away. */
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usb_detach_wait(USBDEV(sc->sc_dev));
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}
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splx(s);
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#if defined(__NetBSD__) || defined(__OpenBSD__)
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/* locate the major number */
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for (maj = 0; maj < nchrdev; maj++)
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if (cdevsw[maj].d_open == ufmopen)
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break;
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/* Nuke the vnodes for any open instances (calls close). */
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mn = self->dv_unit * USB_MAX_ENDPOINTS;
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vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR);
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#elif defined(__FreeBSD__)
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/* XXX not implemented yet */
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#endif
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usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
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USBDEV(sc->sc_dev));
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return (0);
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}
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#endif /* defined(__NetBSD__) || defined(__OpenBSD__) */
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#if defined(__FreeBSD__)
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Static int
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ufm_detach(device_t self)
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{
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DPRINTF(("%s: disconnected\n", USBDEVNAME(self)));
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return 0;
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}
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DRIVER_MODULE(ufm, uhub, ufm_driver, ufm_devclass, usbd_driver_load, 0);
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#endif
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