2 * Copyright (c) 2010 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include <bcmendian.h>
26 #include <wl_export.h>
27 #include <wlc_event.h>
31 #include <wlc_mac80211.h>
36 /* Local prototypes */
37 static void wlc_timer_cb(void *arg);
39 /* Private data structures */
48 struct wl_timer *timer;
50 uint8 event_inds_mask[ROUNDUP(WLC_E_LAST, NBBY) / NBBY];
56 wlc_eventq_t *BCMATTACHFN(wlc_eventq_attach) (wlc_pub_t * pub,
57 struct wlc_info * wlc, void *wl,
61 eq = (wlc_eventq_t *) MALLOC(pub->osh, sizeof(wlc_eventq_t));
65 bzero(eq, sizeof(wlc_eventq_t));
72 if (!(eq->timer = wl_init_timer(eq->wl, wlc_timer_cb, eq, "eventq"))) {
73 WL_ERROR(("wl%d: wlc_eventq_attach: timer failed\n",
75 MFREE(eq->pub->osh, eq, sizeof(wlc_eventq_t));
82 int BCMATTACHFN(wlc_eventq_detach) (wlc_eventq_t * eq) {
83 /* Clean up pending events */
88 wl_del_timer(eq->wl, eq->timer);
91 wl_free_timer(eq->wl, eq->timer);
95 ASSERT(wlc_eventq_avail(eq) == FALSE);
96 MFREE(eq->pub->osh, eq, sizeof(wlc_eventq_t));
100 int BCMUNINITFN(wlc_eventq_down) (wlc_eventq_t * eq) {
102 if (eq->tpending && !eq->workpending) {
103 if (!wl_del_timer(eq->wl, eq->timer))
106 ASSERT(wlc_eventq_avail(eq) == TRUE);
107 ASSERT(eq->workpending == FALSE);
108 eq->workpending = TRUE;
112 ASSERT(eq->workpending == TRUE);
113 eq->workpending = FALSE;
114 eq->tpending = FALSE;
116 ASSERT(eq->workpending || wlc_eventq_avail(eq) == FALSE);
121 wlc_event_t *wlc_event_alloc(wlc_eventq_t * eq)
125 e = MALLOC(eq->pub->osh, sizeof(wlc_event_t));
130 bzero(e, sizeof(wlc_event_t));
134 void wlc_event_free(wlc_eventq_t * eq, wlc_event_t * e)
136 ASSERT(e->data == NULL);
137 ASSERT(e->next == NULL);
138 MFREE(eq->pub->osh, e, sizeof(wlc_event_t));
141 void wlc_eventq_enq(wlc_eventq_t * eq, wlc_event_t * e)
143 ASSERT(e->next == NULL);
150 eq->head = eq->tail = e;
154 /* Use a zero-delay timer to trigger
155 * delayed processing of the event.
157 wl_add_timer(eq->wl, eq->timer, 0, 0);
161 wlc_event_t *wlc_eventq_deq(wlc_eventq_t * eq)
170 if (eq->head == NULL)
176 wlc_event_t *wlc_eventq_next(wlc_eventq_t * eq, wlc_event_t * e)
181 for (etmp = eq->head; etmp; etmp = etmp->next) {
185 ASSERT(etmp != NULL);
191 int wlc_eventq_cnt(wlc_eventq_t * eq)
196 for (etmp = eq->head; etmp; etmp = etmp->next)
202 bool wlc_eventq_avail(wlc_eventq_t * eq)
204 return (eq->head != NULL);
210 static void wlc_timer_cb(void *arg)
212 struct wlc_eventq *eq = (struct wlc_eventq *)arg;
214 ASSERT(eq->tpending == TRUE);
215 ASSERT(wlc_eventq_avail(eq) == TRUE);
216 ASSERT(eq->workpending == FALSE);
217 eq->workpending = TRUE;
222 ASSERT(wlc_eventq_avail(eq) == FALSE);
223 ASSERT(eq->tpending == TRUE);
224 eq->workpending = FALSE;
225 eq->tpending = FALSE;