diff options
Diffstat (limited to 'drivers/net/wireless/orinoco/orinoco.c')
| -rw-r--r-- | drivers/net/wireless/orinoco/orinoco.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/net/wireless/orinoco/orinoco.c b/drivers/net/wireless/orinoco/orinoco.c index 09eec7f620b..171bfa03868 100644 --- a/drivers/net/wireless/orinoco/orinoco.c +++ b/drivers/net/wireless/orinoco/orinoco.c @@ -84,6 +84,7 @@ #include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/firmware.h> +#include <linux/suspend.h> #include <linux/if_arp.h> #include <linux/wireless.h> #include <linux/ieee80211.h> @@ -712,6 +713,7 @@ static int orinoco_download(struct orinoco_private *priv) return err; } +#if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP) static void orinoco_cache_fw(struct orinoco_private *priv, int ap) { const struct firmware *fw_entry = NULL; @@ -745,6 +747,10 @@ static void orinoco_uncache_fw(struct orinoco_private *priv) priv->cached_pri_fw = NULL; priv->cached_fw = NULL; } +#else +#define orinoco_cache_fw(priv, ap) +#define orinoco_uncache_fw(priv) +#endif /********************************************************************/ /* Device methods */ @@ -3100,6 +3106,50 @@ irqreturn_t orinoco_interrupt(int irq, void *dev_id) } /********************************************************************/ +/* Power management */ +/********************************************************************/ +#if defined(CONFIG_PM_SLEEP) && !defined(CONFIG_HERMES_CACHE_FW_ON_INIT) +static int orinoco_pm_notifier(struct notifier_block *notifier, + unsigned long pm_event, + void *unused) +{ + struct orinoco_private *priv = container_of(notifier, + struct orinoco_private, + pm_notifier); + + /* All we need to do is cache the firmware before suspend, and + * release it when we come out. + * + * Only need to do this if we're downloading firmware. */ + if (!priv->do_fw_download) + return NOTIFY_DONE; + + switch (pm_event) { + case PM_HIBERNATION_PREPARE: + case PM_SUSPEND_PREPARE: + orinoco_cache_fw(priv, 0); + break; + + case PM_POST_RESTORE: + /* Restore from hibernation failed. We need to clean + * up in exactly the same way, so fall through. */ + case PM_POST_HIBERNATION: + case PM_POST_SUSPEND: + orinoco_uncache_fw(priv); + break; + + case PM_RESTORE_PREPARE: + default: + break; + } + + return NOTIFY_DONE; +} +#else /* !PM_SLEEP || HERMES_CACHE_FW_ON_INIT */ +#define orinoco_pm_notifier NULL +#endif + +/********************************************************************/ /* Initialization */ /********************************************************************/ @@ -3342,7 +3392,9 @@ static int orinoco_init(struct net_device *dev) } if (priv->do_fw_download) { +#ifdef CONFIG_HERMES_CACHE_FW_ON_INIT orinoco_cache_fw(priv, 0); +#endif err = orinoco_download(priv); if (err) @@ -3583,6 +3635,10 @@ struct net_device priv->cached_pri_fw = NULL; priv->cached_fw = NULL; + /* Register PM notifiers */ + priv->pm_notifier.notifier_call = orinoco_pm_notifier; + register_pm_notifier(&priv->pm_notifier); + return dev; } @@ -3595,6 +3651,7 @@ void free_orinocodev(struct net_device *dev) * emptying the list */ tasklet_kill(&priv->rx_tasklet); + unregister_pm_notifier(&priv->pm_notifier); orinoco_uncache_fw(priv); priv->wpa_ie_len = 0; |