1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Wireless USB Host Controller
 4 * UWB Protocol Adaptation Layer (PAL) glue.
 5 *
 6 * Copyright (C) 2008 Cambridge Silicon Radio Ltd.
 7 */
 8#include "wusbhc.h"
 9
10static void wusbhc_channel_changed(struct uwb_pal *pal, int channel)
11{
12	struct wusbhc *wusbhc = container_of(pal, struct wusbhc, pal);
13
14	dev_dbg(wusbhc->dev, "%s: channel = %d\n", __func__, channel);
15	if (channel < 0)
16		wusbhc_stop(wusbhc);
17	else
18		wusbhc_start(wusbhc);
19}
20
21/**
22 * wusbhc_pal_register - register the WUSB HC as a UWB PAL
23 * @wusbhc: the WUSB HC
24 */
25int wusbhc_pal_register(struct wusbhc *wusbhc)
26{
27	uwb_pal_init(&wusbhc->pal);
28
29	wusbhc->pal.name   = "wusbhc";
30	wusbhc->pal.device = wusbhc->usb_hcd.self.controller;
31	wusbhc->pal.rc     = wusbhc->uwb_rc;
32	wusbhc->pal.channel_changed = wusbhc_channel_changed;
33
34	return uwb_pal_register(&wusbhc->pal);
35}
36
37/**
38 * wusbhc_pal_unregister - unregister the WUSB HC as a UWB PAL
39 * @wusbhc: the WUSB HC
40 */
41void wusbhc_pal_unregister(struct wusbhc *wusbhc)
42{
43	if (wusbhc->uwb_rc)
44		uwb_pal_unregister(&wusbhc->pal);
45}