diff options
Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1251_event.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl1251_event.c | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1251_event.c b/drivers/net/wireless/wl12xx/wl1251_event.c index 020d764f9c13..54223556b308 100644 --- a/drivers/net/wireless/wl12xx/wl1251_event.c +++ b/drivers/net/wireless/wl12xx/wl1251_event.c @@ -4,8 +4,6 @@ * Copyright (c) 1998-2007 Texas Instruments Incorporated * Copyright (C) 2008 Nokia Corporation * - * Contact: Kalle Valo <kalle.valo@nokia.com> - * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. @@ -36,9 +34,7 @@ static int wl1251_event_scan_complete(struct wl1251 *wl, mbox->scheduled_scan_channels); if (wl->scanning) { - mutex_unlock(&wl->mutex); ieee80211_scan_completed(wl->hw, false); - mutex_lock(&wl->mutex); wl1251_debug(DEBUG_MAC80211, "mac80211 hw scan completed"); wl->scanning = false; } @@ -97,6 +93,35 @@ static int wl1251_event_process(struct wl1251 *wl, struct event_mailbox *mbox) return 0; } +/* + * Poll the mailbox event field until any of the bits in the mask is set or a + * timeout occurs (WL1251_EVENT_TIMEOUT in msecs) + */ +int wl1251_event_wait(struct wl1251 *wl, u32 mask, int timeout_ms) +{ + u32 events_vector, event; + unsigned long timeout; + + timeout = jiffies + msecs_to_jiffies(timeout_ms); + + do { + if (time_after(jiffies, timeout)) + return -ETIMEDOUT; + + msleep(1); + + /* read from both event fields */ + wl1251_mem_read(wl, wl->mbox_ptr[0], &events_vector, + sizeof(events_vector)); + event = events_vector & mask; + wl1251_mem_read(wl, wl->mbox_ptr[1], &events_vector, + sizeof(events_vector)); + event |= events_vector & mask; + } while (!event); + + return 0; +} + int wl1251_event_unmask(struct wl1251 *wl) { int ret; |