2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2001 M. Warner Losh <imp@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions, and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * This code is based on ugen.c and ulpt.c developed by Lennart Augustsson.
28 * This code includes software developed by the NetBSD Foundation, Inc. and
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
36 #include <sys/stdint.h>
37 #include <sys/stddef.h>
38 #include <sys/param.h>
39 #include <sys/queue.h>
40 #include <sys/types.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
44 #include <sys/module.h>
46 #include <sys/mutex.h>
47 #include <sys/condvar.h>
48 #include <sys/sysctl.h>
50 #include <sys/unistd.h>
51 #include <sys/callout.h>
52 #include <sys/malloc.h>
55 #include <sys/fcntl.h>
57 #include <dev/usb/usb.h>
58 #include <dev/usb/usbdi.h>
61 #define USB_DEBUG_VAR usb_debug
62 #include <dev/usb/usb_debug.h>
64 #include <dev/usb/ufm_ioctl.h>
67 #define UFM_CMD_SET_FREQ 0x01
71 struct usb_fifo_sc sc_fifo;
74 struct usb_device *sc_udev;
84 static device_probe_t ufm_probe;
85 static device_attach_t ufm_attach;
86 static device_detach_t ufm_detach;
88 static usb_fifo_ioctl_t ufm_ioctl;
90 static struct usb_fifo_methods ufm_fifo_methods = {
91 .f_ioctl = &ufm_ioctl,
95 static int ufm_do_req(struct ufm_softc *, uint8_t, uint16_t, uint16_t,
97 static int ufm_set_freq(struct ufm_softc *, void *);
98 static int ufm_get_freq(struct ufm_softc *, void *);
99 static int ufm_start(struct ufm_softc *, void *);
100 static int ufm_stop(struct ufm_softc *, void *);
101 static int ufm_get_stat(struct ufm_softc *, void *);
103 static devclass_t ufm_devclass;
105 static device_method_t ufm_methods[] = {
106 DEVMETHOD(device_probe, ufm_probe),
107 DEVMETHOD(device_attach, ufm_attach),
108 DEVMETHOD(device_detach, ufm_detach),
113 static driver_t ufm_driver = {
115 .methods = ufm_methods,
116 .size = sizeof(struct ufm_softc),
119 static const STRUCT_USB_HOST_ID ufm_devs[] = {
120 {USB_VPI(USB_VENDOR_CYPRESS, USB_PRODUCT_CYPRESS_FMRADIO, 0)},
123 DRIVER_MODULE(ufm, uhub, ufm_driver, ufm_devclass, NULL, 0);
124 MODULE_DEPEND(ufm, usb, 1, 1, 1);
125 MODULE_VERSION(ufm, 1);
126 USB_PNP_HOST_INFO(ufm_devs);
129 ufm_probe(device_t dev)
131 struct usb_attach_arg *uaa = device_get_ivars(dev);
133 if (uaa->usb_mode != USB_MODE_HOST)
135 if (uaa->info.bConfigIndex != 0)
137 if (uaa->info.bIfaceIndex != 0)
140 return (usbd_lookup_id_by_uaa(ufm_devs, sizeof(ufm_devs), uaa));
144 ufm_attach(device_t dev)
146 struct usb_attach_arg *uaa = device_get_ivars(dev);
147 struct ufm_softc *sc = device_get_softc(dev);
150 sc->sc_udev = uaa->device;
151 sc->sc_unit = device_get_unit(dev);
153 snprintf(sc->sc_name, sizeof(sc->sc_name), "%s",
154 device_get_nameunit(dev));
156 mtx_init(&sc->sc_mtx, "ufm lock", NULL, MTX_DEF | MTX_RECURSE);
158 device_set_usb_desc(dev);
160 error = usb_fifo_attach(uaa->device, sc, &sc->sc_mtx,
161 &ufm_fifo_methods, &sc->sc_fifo,
162 device_get_unit(dev), -1, uaa->info.bIfaceIndex,
163 UID_ROOT, GID_OPERATOR, 0644);
167 return (0); /* success */
175 ufm_detach(device_t dev)
177 struct ufm_softc *sc = device_get_softc(dev);
179 usb_fifo_detach(&sc->sc_fifo);
181 mtx_destroy(&sc->sc_mtx);
187 ufm_do_req(struct ufm_softc *sc, uint8_t request,
188 uint16_t value, uint16_t index, uint8_t *retbuf)
192 struct usb_device_request req;
195 req.bmRequestType = UT_READ_VENDOR_DEVICE;
196 req.bRequest = request;
197 USETW(req.wValue, value);
198 USETW(req.wIndex, index);
199 USETW(req.wLength, 1);
201 error = usbd_do_request(sc->sc_udev, NULL, &req, buf);
213 ufm_set_freq(struct ufm_softc *sc, void *addr)
215 int freq = *(int *)addr;
218 * Freq now is in Hz. We need to convert it to the frequency
219 * that the radio wants. This frequency is 10.7MHz above
220 * the actual frequency. We then need to convert to
221 * units of 12.5kHz. We add one to the IFM to make rounding
224 mtx_lock(&sc->sc_mtx);
226 mtx_unlock(&sc->sc_mtx);
228 freq = (freq + 10700001) / 12500;
230 /* This appears to set the frequency */
231 if (ufm_do_req(sc, UFM_CMD_SET_FREQ,
232 freq >> 8, freq, NULL) != 0) {
235 /* Not sure what this does */
236 if (ufm_do_req(sc, UFM_CMD0,
237 0x96, 0xb7, NULL) != 0) {
244 ufm_get_freq(struct ufm_softc *sc, void *addr)
246 int *valp = (int *)addr;
248 mtx_lock(&sc->sc_mtx);
250 mtx_unlock(&sc->sc_mtx);
255 ufm_start(struct ufm_softc *sc, void *addr)
259 if (ufm_do_req(sc, UFM_CMD0,
263 if (ufm_do_req(sc, UFM_CMD2,
274 ufm_stop(struct ufm_softc *sc, void *addr)
276 if (ufm_do_req(sc, UFM_CMD0,
280 if (ufm_do_req(sc, UFM_CMD2,
288 ufm_get_stat(struct ufm_softc *sc, void *addr)
293 * Note, there's a 240ms settle time before the status
294 * will be valid, so sleep that amount.
296 usb_pause_mtx(NULL, hz / 4);
298 if (ufm_do_req(sc, UFM_CMD0,
308 ufm_ioctl(struct usb_fifo *fifo, u_long cmd, void *addr,
311 struct ufm_softc *sc = usb_fifo_softc(fifo);
314 if ((fflags & (FWRITE | FREAD)) != (FWRITE | FREAD)) {
320 error = ufm_set_freq(sc, addr);
323 error = ufm_get_freq(sc, addr);
326 error = ufm_start(sc, addr);
329 error = ufm_stop(sc, addr);
332 error = ufm_get_stat(sc, addr);