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libertas: add asynchronous firmware loading capability

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As described at
http://article.gmane.org/gmane.linux.kernel.wireless.general/86084
libertas is taking a long time to load because it loads firmware
during module loading.

Add a new API for interface drivers to load their firmware
asynchronously. The same semantics of the firmware table are followed
like before.

Interface drivers will be converted in follow-up patches, then we can
remove the old, synchronous firmware loading function.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Daniel Drake
2012-04-16 23:53:26 +01:00
committed by John W. Linville
parent 0beecac8ab
commit 534111c78c
4 changed files with 164 additions and 0 deletions
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3
drivers/net/wireless/libertas/main.c
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@@ -878,6 +878,7 @@ static int lbs_init_adapter(struct lbs_private *priv)
priv->is_host_sleep_configured = 0;
priv->is_host_sleep_activated = 0;
init_waitqueue_head(&priv->host_sleep_q);
init_waitqueue_head(&priv->fw_waitq);
mutex_init(&priv->lock);
setup_timer(&priv->command_timer, lbs_cmd_timeout_handler,
@@ -1037,6 +1038,8 @@ void lbs_remove_card(struct lbs_private *priv)
if (priv->wiphy_registered)
lbs_scan_deinit(priv);
lbs_wait_for_firmware_load(priv);
/* worker thread destruction blocks on the in-flight command which
* should have been cleared already in lbs_stop_card().
*/