diff options
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/cfg80211.c | 31 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/cfg80211.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/core.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/debug.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath6kl/sdio.c | 64 |
5 files changed, 90 insertions, 8 deletions
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c index 01e83c92c198..5dab4f20146a 100644 --- a/drivers/net/wireless/ath/ath6kl/cfg80211.c +++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c @@ -1674,6 +1674,28 @@ int ath6kl_cfg80211_suspend(struct ath6kl *ar, ar->state = ATH6KL_STATE_DEEPSLEEP; break; + + case ATH6KL_CFG_SUSPEND_CUTPOWER: + if (ar->state == ATH6KL_STATE_OFF) { + ath6kl_dbg(ATH6KL_DBG_SUSPEND, + "suspend hw off, no action for cutpower\n"); + break; + } + + ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n"); + + ret = ath6kl_init_hw_stop(ar); + if (ret) { + ath6kl_warn("failed to stop hw during suspend: %d\n", + ret); + } + + ar->state = ATH6KL_STATE_CUTPOWER; + + break; + + default: + break; } return 0; @@ -1698,6 +1720,15 @@ int ath6kl_cfg80211_resume(struct ath6kl *ar) break; + case ATH6KL_STATE_CUTPOWER: + ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n"); + + ret = ath6kl_init_hw_start(ar); + if (ret) { + ath6kl_warn("Failed to boot hw in resume: %d\n", ret); + return ret; + } + default: break; } diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.h b/drivers/net/wireless/ath/ath6kl/cfg80211.h index 3630c5e62b5f..72eadf823e0c 100644 --- a/drivers/net/wireless/ath/ath6kl/cfg80211.h +++ b/drivers/net/wireless/ath/ath6kl/cfg80211.h @@ -19,6 +19,7 @@ enum ath6kl_cfg_suspend_mode { ATH6KL_CFG_SUSPEND_DEEPSLEEP, + ATH6KL_CFG_SUSPEND_CUTPOWER, }; struct net_device *ath6kl_interface_add(struct ath6kl *ar, char *name, diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h index 6613248ffd21..f301c32a2dd8 100644 --- a/drivers/net/wireless/ath/ath6kl/core.h +++ b/drivers/net/wireless/ath/ath6kl/core.h @@ -454,6 +454,7 @@ enum ath6kl_state { ATH6KL_STATE_OFF, ATH6KL_STATE_ON, ATH6KL_STATE_DEEPSLEEP, + ATH6KL_STATE_CUTPOWER, }; struct ath6kl { diff --git a/drivers/net/wireless/ath/ath6kl/debug.h b/drivers/net/wireless/ath/ath6kl/debug.h index 491485e95850..c24d120615ad 100644 --- a/drivers/net/wireless/ath/ath6kl/debug.h +++ b/drivers/net/wireless/ath/ath6kl/debug.h @@ -40,6 +40,7 @@ enum ATH6K_DEBUG_MASK { ATH6KL_DBG_SDIO_DUMP = BIT(17), ATH6KL_DBG_BOOT = BIT(18), /* driver init and fw boot */ ATH6KL_DBG_WMI_DUMP = BIT(19), + ATH6KL_DBG_SUSPEND = BIT(20), ATH6KL_DBG_ANY = 0xffffffff /* enable all logs */ }; diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c index b02ecea0cc0d..ccb888b41c46 100644 --- a/drivers/net/wireless/ath/ath6kl/sdio.c +++ b/drivers/net/wireless/ath/ath6kl/sdio.c @@ -782,12 +782,11 @@ static int ath6kl_sdio_suspend(struct ath6kl *ar) flags = sdio_get_host_pm_caps(func); + ath6kl_dbg(ATH6KL_DBG_SUSPEND, "sdio suspend pm_caps 0x%x\n", flags); + if (!(flags & MMC_PM_KEEP_POWER)) { - /* as host doesn't support keep power we need to bail out */ - ath6kl_dbg(ATH6KL_DBG_SDIO, - "func %d doesn't support MMC_PM_KEEP_POWER\n", - func->num); - return -EINVAL; + /* as host doesn't support keep power we need to cut power */ + return ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_CUTPOWER); } ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); @@ -797,13 +796,30 @@ static int ath6kl_sdio_suspend(struct ath6kl *ar) return ret; } - ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_DEEPSLEEP); - - return 0; + return ath6kl_cfg80211_suspend(ar, ATH6KL_CFG_SUSPEND_DEEPSLEEP); } static int ath6kl_sdio_resume(struct ath6kl *ar) { + switch (ar->state) { + case ATH6KL_STATE_OFF: + case ATH6KL_STATE_CUTPOWER: + ath6kl_dbg(ATH6KL_DBG_SUSPEND, + "sdio resume configuring sdio\n"); + + /* need to set sdio settings after power is cut from sdio */ + ath6kl_sdio_config(ar); + break; + + case ATH6KL_STATE_ON: + /* we shouldn't be on this state during resume */ + WARN_ON(1); + break; + + case ATH6KL_STATE_DEEPSLEEP: + break; + } + ath6kl_cfg80211_resume(ar); return 0; @@ -858,6 +874,37 @@ static const struct ath6kl_hif_ops ath6kl_sdio_ops = { .stop = ath6kl_sdio_stop, }; +#ifdef CONFIG_PM_SLEEP + +/* + * Empty handlers so that mmc subsystem doesn't remove us entirely during + * suspend. We instead follow cfg80211 suspend/resume handlers. + */ +static int ath6kl_sdio_pm_suspend(struct device *device) +{ + ath6kl_dbg(ATH6KL_DBG_SUSPEND, "sdio pm suspend\n"); + + return 0; +} + +static int ath6kl_sdio_pm_resume(struct device *device) +{ + ath6kl_dbg(ATH6KL_DBG_SUSPEND, "sdio pm resume\n"); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(ath6kl_sdio_pm_ops, ath6kl_sdio_pm_suspend, + ath6kl_sdio_pm_resume); + +#define ATH6KL_SDIO_PM_OPS (&ath6kl_sdio_pm_ops) + +#else + +#define ATH6KL_SDIO_PM_OPS NULL + +#endif /* CONFIG_PM_SLEEP */ + static int ath6kl_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id) { @@ -969,6 +1016,7 @@ static struct sdio_driver ath6kl_sdio_driver = { .id_table = ath6kl_sdio_devices, .probe = ath6kl_sdio_probe, .remove = ath6kl_sdio_remove, + .drv.pm = ATH6KL_SDIO_PM_OPS, }; static int __init ath6kl_sdio_init(void) |