8258b792b7
matching (and handling) a whole device and those which match an interface only. This will allow to enforce some rules, eg that the former don't use interface information for matching or that the latter don't modify global device state. The previous way left too much freedom do the drivers which led to inconsistencies and abuse. For now, I've not changed locators and submatch rules, this will happen later. There should not be any change in behaviour, except in the case of some drivers which did behave inconsistently: if_atu, if_axe, uep: matched the configured device in the interface stage, but did configuration again. I've converted them to match in the device stage. ustir, utoppy: matched in the interface stage, but only against vendor/device information, and used any configuration/interface without checking. Changed to match in device stage, and added some simple code to configure and use the first interface. If you have one of those devices, please test!
280 lines
7.2 KiB
C
280 lines
7.2 KiB
C
/* $NetBSD: udsbr.c,v 1.12 2007/03/13 13:51:55 drochner Exp $ */
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/*
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (lennart@augustsson.net).
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Driver for the D-Link DSB-R100 FM radio.
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* I apologize for the magic hex constants, but this is what happens
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* when you have to reverse engineer the driver.
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* Parts of the code borrowed from Linux and parts from Warner Losh's
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* FreeBSD driver.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: udsbr.c,v 1.12 2007/03/13 13:51:55 drochner Exp $");
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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/device.h>
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#include <sys/radioio.h>
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#include <dev/radio_if.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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#ifdef UDSBR_DEBUG
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#define DPRINTF(x) if (udsbrdebug) logprintf x
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#define DPRINTFN(n,x) if (udsbrdebug>(n)) logprintf x
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int udsbrdebug = 0;
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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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#define UDSBR_CONFIG_NO 1
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Static int udsbr_get_info(void *, struct radio_info *);
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Static int udsbr_set_info(void *, struct radio_info *);
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const struct radio_hw_if udsbr_hw_if = {
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NULL, /* open */
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NULL, /* close */
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udsbr_get_info,
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udsbr_set_info,
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NULL
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};
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struct udsbr_softc {
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USBBASEDEVICE sc_dev;
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usbd_device_handle sc_udev;
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char sc_mute;
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char sc_vol;
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u_int32_t sc_freq;
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struct device *sc_child;
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char sc_dying;
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};
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Static int udsbr_req(struct udsbr_softc *sc, int ureq, int value,
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int index);
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Static void udsbr_start(struct udsbr_softc *sc);
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Static void udsbr_stop(struct udsbr_softc *sc);
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Static void udsbr_setfreq(struct udsbr_softc *sc, int freq);
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Static int udsbr_status(struct udsbr_softc *sc);
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USB_DECLARE_DRIVER(udsbr);
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USB_MATCH(udsbr)
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{
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USB_MATCH_START(udsbr, uaa);
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DPRINTFN(50,("udsbr_match\n"));
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if (uaa->vendor != USB_VENDOR_CYPRESS ||
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uaa->product != USB_PRODUCT_CYPRESS_FMRADIO)
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return (UMATCH_NONE);
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return (UMATCH_VENDOR_PRODUCT);
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}
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USB_ATTACH(udsbr)
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{
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USB_ATTACH_START(udsbr, sc, uaa);
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usbd_device_handle dev = uaa->device;
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char *devinfop;
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usbd_status err;
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DPRINTFN(10,("udsbr_attach: sc=%p\n", sc));
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devinfop = usbd_devinfo_alloc(dev, 0);
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USB_ATTACH_SETUP;
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printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfop);
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usbd_devinfo_free(devinfop);
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err = usbd_set_config_no(dev, UDSBR_CONFIG_NO, 1);
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if (err) {
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printf("%s: setting config no failed\n",
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USBDEVNAME(sc->sc_dev));
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USB_ATTACH_ERROR_RETURN;
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}
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sc->sc_udev = dev;
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DPRINTFN(10, ("udsbr_attach: %p\n", sc->sc_udev));
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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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sc->sc_child = radio_attach_mi(&udsbr_hw_if, sc, USBDEV(sc->sc_dev));
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USB_ATTACH_SUCCESS_RETURN;
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}
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USB_DETACH(udsbr)
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{
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USB_DETACH_START(udsbr, sc);
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int rv = 0;
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if (sc->sc_child != NULL)
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rv = config_detach(sc->sc_child, flags);
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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 (rv);
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}
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int
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udsbr_activate(device_ptr_t self, enum devact act)
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{
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struct udsbr_softc *sc = (struct udsbr_softc *)self;
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int rv = 0;
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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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if (sc->sc_child != NULL)
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rv = config_deactivate(sc->sc_child);
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break;
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}
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return (rv);
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}
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int
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udsbr_req(struct udsbr_softc *sc, int ureq, int value, int index)
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{
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usb_device_request_t req;
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usbd_status err;
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u_char data;
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DPRINTFN(1,("udsbr_req: ureq=0x%02x value=0x%04x index=0x%04x\n",
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ureq, value, index));
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req.bmRequestType = UT_READ_VENDOR_DEVICE;
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req.bRequest = ureq;
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USETW(req.wValue, value);
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USETW(req.wIndex, index);
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USETW(req.wLength, 1);
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err = usbd_do_request(sc->sc_udev, &req, &data);
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if (err) {
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printf("%s: request failed err=%d\n", USBDEVNAME(sc->sc_dev),
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err);
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}
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return !(data & 1);
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}
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void
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udsbr_start(struct udsbr_softc *sc)
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{
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(void)udsbr_req(sc, 0x00, 0x0000, 0x00c7);
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(void)udsbr_req(sc, 0x02, 0x0001, 0x0000);
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}
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void
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udsbr_stop(struct udsbr_softc *sc)
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{
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(void)udsbr_req(sc, 0x00, 0x0016, 0x001c);
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(void)udsbr_req(sc, 0x02, 0x0000, 0x0000);
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}
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void
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udsbr_setfreq(struct udsbr_softc *sc, int freq)
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{
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DPRINTF(("udsbr_setfreq: setfreq=%d\n", freq));
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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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freq = (freq * 1000 + 10700001) / 12500;
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(void)udsbr_req(sc, 0x01, (freq >> 8) & 0xff, freq & 0xff);
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(void)udsbr_req(sc, 0x00, 0x0096, 0x00b7);
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usbd_delay_ms(sc->sc_udev, 240); /* wait for signal to settle */
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}
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int
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udsbr_status(struct udsbr_softc *sc)
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{
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return (udsbr_req(sc, 0x00, 0x0000, 0x0024));
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}
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int
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udsbr_get_info(void *v, struct radio_info *ri)
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{
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struct udsbr_softc *sc = v;
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ri->mute = sc->sc_mute;
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ri->volume = sc->sc_vol ? 255 : 0;
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ri->caps = RADIO_CAPS_DETECT_STEREO;
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ri->rfreq = 0;
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ri->lock = 0;
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ri->freq = sc->sc_freq;
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ri->info = udsbr_status(sc) ? RADIO_INFO_STEREO : 0;
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return (0);
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}
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int
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udsbr_set_info(void *v, struct radio_info *ri)
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{
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struct udsbr_softc *sc = v;
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sc->sc_mute = ri->mute != 0;
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sc->sc_vol = ri->volume != 0;
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sc->sc_freq = ri->freq;
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udsbr_setfreq(sc, sc->sc_freq);
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if (sc->sc_mute || sc->sc_vol == 0)
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udsbr_stop(sc);
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else
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udsbr_start(sc);
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return (0);
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}
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