static void wl1271_sdio_enable_irq_wake(struct wl1271 *wl) { int ret; mmc_pm_flag_t mmcflags; struct ieee80211_hw *hw = wl->hw; struct sdio_func *func = wl_to_func(wl); ret = enable_irq_wake(wl->irq); if (!ret) { wl->irq_wake_enabled = true; device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1); /* if sdio can keep power while host is suspended, enable wow */ mmcflags = sdio_get_host_pm_caps(func); wl1271_debug(DEBUG_SDIO, "sdio PM caps = 0x%x", mmcflags); if (mmcflags & MMC_PM_KEEP_POWER) { hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY; hw->wiphy->wowlan.n_patterns = WL1271_MAX_RX_DATA_FILTERS; hw->wiphy->wowlan.pattern_min_len = 1; hw->wiphy->wowlan.pattern_max_len = WL1271_RX_DATA_FILTER_MAX_PATTERN_SIZE; } } }
static void wl1271_sdio_disable_irq_wake(struct wl1271 *wl) { if (wl->irq_wake_enabled) { device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 0); disable_irq_wake(wl->irq); } }
static irqreturn_t wl1271_hardirq(int irq, void *cookie) { struct wl1271 *wl = cookie; unsigned long flags; wl1271_debug(DEBUG_IRQ, "IRQ"); /* complete the ELP completion */ spin_lock_irqsave(&wl->wl_lock, flags); set_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags); if (wl->elp_compl) { complete(wl->elp_compl); wl->elp_compl = NULL; } if (test_bit(WL1271_FLAG_SUSPENDED, &wl->flags)) { /* don't enqueue a work right now. mark it as pending */ set_bit(WL1271_FLAG_PENDING_WORK, &wl->flags); wl1271_debug(DEBUG_IRQ, "should not enqueue work"); disable_irq_nosync(wl->irq); pm_wakeup_event(wl1271_sdio_wl_to_dev(wl), 0); spin_unlock_irqrestore(&wl->wl_lock, flags); return IRQ_HANDLED; } spin_unlock_irqrestore(&wl->wl_lock, flags); return IRQ_WAKE_THREAD; }
static void __devexit wl1271_remove(struct sdio_func *func) { struct wl1271 *wl = sdio_get_drvdata(func); /* Undo decrement done above in wl1271_probe */ pm_runtime_get_noresume(&func->dev); wl1271_unregister_hw(wl); device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 0); disable_irq_wake(wl->irq); free_irq(wl->irq, wl); wl1271_free_hw(wl); }
static int __devinit wl1271_probe(struct sdio_func *func, const struct sdio_device_id *id) { struct ieee80211_hw *hw; const struct wl12xx_platform_data *wlan_data; struct wl1271 *wl; unsigned long irqflags; mmc_pm_flag_t mmcflags; int ret; /* We are only able to handle the wlan function */ if (func->num != 0x02) return -ENODEV; hw = wl1271_alloc_hw(); if (IS_ERR(hw)) return PTR_ERR(hw); wl = hw->priv; wl->if_priv = func; wl->if_ops = &sdio_ops; /* Grab access to FN0 for ELP reg. */ func->card->quirks |= MMC_QUIRK_LENIENT_FN0; /* Use block mode for transferring over one block size of data */ func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE; wlan_data = wl12xx_get_platform_data(); if (IS_ERR(wlan_data)) { ret = PTR_ERR(wlan_data); wl1271_error("missing wlan platform data: %d", ret); goto out_free; } wl->irq = wlan_data->irq; wl->ref_clock = wlan_data->board_ref_clock; wl->tcxo_clock = wlan_data->board_tcxo_clock; wl->platform_quirks = wlan_data->platform_quirks; if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ) irqflags = IRQF_TRIGGER_RISING; else irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT; ret = request_threaded_irq(wl->irq, wl1271_hardirq, wl1271_irq, irqflags, DRIVER_NAME, wl); if (ret < 0) { wl1271_error("request_irq() failed: %d", ret); goto out_free; } ret = enable_irq_wake(wl->irq); if (!ret) { wl->irq_wake_enabled = true; device_init_wakeup(wl1271_sdio_wl_to_dev(wl), 1); /* if sdio can keep power while host is suspended, enable wow */ mmcflags = sdio_get_host_pm_caps(func); wl1271_debug(DEBUG_SDIO, "sdio PM caps = 0x%x", mmcflags); if (mmcflags & MMC_PM_KEEP_POWER) hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY; } disable_irq(wl->irq); ret = wl1271_init_ieee80211(wl); if (ret) goto out_irq; ret = wl1271_register_hw(wl); if (ret) goto out_irq; sdio_set_drvdata(func, wl); /* Tell PM core that we don't need the card to be powered now */ pm_runtime_put_noidle(&func->dev); return 0; out_irq: free_irq(wl->irq, wl); out_free: wl1271_free_hw(wl); return ret; }