diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/asp2/bcmasp.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/asp2/bcmasp.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp.c b/drivers/net/ethernet/broadcom/asp2/bcmasp.c index 83494641b545..894c14dca911 100644 --- a/drivers/net/ethernet/broadcom/asp2/bcmasp.c +++ b/drivers/net/ethernet/broadcom/asp2/bcmasp.c @@ -436,6 +436,135 @@ void bcmasp_core_clock_set_intf(struct bcmasp_intf *intf, bool en) spin_unlock_irqrestore(&priv->clk_lock, flags); } +static irqreturn_t bcmasp_isr_wol(int irq, void *data) +{ + struct bcmasp_priv *priv = data; + u32 status; + + /* No L3 IRQ, so we good */ + if (priv->wol_irq <= 0) + goto irq_handled; + + status = wakeup_intr2_core_rl(priv, ASP_WAKEUP_INTR2_STATUS) & + ~wakeup_intr2_core_rl(priv, ASP_WAKEUP_INTR2_MASK_STATUS); + wakeup_intr2_core_wl(priv, status, ASP_WAKEUP_INTR2_CLEAR); + +irq_handled: + pm_wakeup_event(&priv->pdev->dev, 0); + return IRQ_HANDLED; +} + +static int bcmasp_get_and_request_irq(struct bcmasp_priv *priv, int i) +{ + struct platform_device *pdev = priv->pdev; + int irq, ret; + + irq = platform_get_irq_optional(pdev, i); + if (irq < 0) + return irq; + + ret = devm_request_irq(&pdev->dev, irq, bcmasp_isr_wol, 0, + pdev->name, priv); + if (ret) + return ret; + + return irq; +} + +static void bcmasp_init_wol_shared(struct bcmasp_priv *priv) +{ + struct platform_device *pdev = priv->pdev; + struct device *dev = &pdev->dev; + int irq; + + irq = bcmasp_get_and_request_irq(priv, 1); + if (irq < 0) { + dev_warn(dev, "Failed to init WoL irq: %d\n", irq); + return; + } + + priv->wol_irq = irq; + priv->wol_irq_enabled_mask = 0; + device_set_wakeup_capable(&pdev->dev, 1); +} + +static void bcmasp_enable_wol_shared(struct bcmasp_intf *intf, bool en) +{ + struct bcmasp_priv *priv = intf->parent; + struct device *dev = &priv->pdev->dev; + + if (en) { + if (priv->wol_irq_enabled_mask) { + set_bit(intf->port, &priv->wol_irq_enabled_mask); + return; + } + + /* First enable */ + set_bit(intf->port, &priv->wol_irq_enabled_mask); + enable_irq_wake(priv->wol_irq); + device_set_wakeup_enable(dev, 1); + } else { + if (!priv->wol_irq_enabled_mask) + return; + + clear_bit(intf->port, &priv->wol_irq_enabled_mask); + if (priv->wol_irq_enabled_mask) + return; + + /* Last disable */ + disable_irq_wake(priv->wol_irq); + device_set_wakeup_enable(dev, 0); + } +} + +static void bcmasp_wol_irq_destroy_shared(struct bcmasp_priv *priv) +{ + if (priv->wol_irq > 0) + free_irq(priv->wol_irq, priv); +} + +static void bcmasp_init_wol_per_intf(struct bcmasp_priv *priv) +{ + struct platform_device *pdev = priv->pdev; + struct device *dev = &pdev->dev; + struct bcmasp_intf *intf; + int irq; + + list_for_each_entry(intf, &priv->intfs, list) { + irq = bcmasp_get_and_request_irq(priv, intf->port + 1); + if (irq < 0) { + dev_warn(dev, "Failed to init WoL irq(port %d): %d\n", + intf->port, irq); + continue; + } + + intf->wol_irq = irq; + intf->wol_irq_enabled = false; + device_set_wakeup_capable(&pdev->dev, 1); + } +} + +static void bcmasp_enable_wol_per_intf(struct bcmasp_intf *intf, bool en) +{ + struct device *dev = &intf->parent->pdev->dev; + + if (en ^ intf->wol_irq_enabled) + irq_set_irq_wake(intf->wol_irq, en); + + intf->wol_irq_enabled = en; + device_set_wakeup_enable(dev, en); +} + +static void bcmasp_wol_irq_destroy_per_intf(struct bcmasp_priv *priv) +{ + struct bcmasp_intf *intf; + + list_for_each_entry(intf, &priv->intfs, list) { + if (intf->wol_irq > 0) + free_irq(intf->wol_irq, priv); + } +} + static struct bcmasp_hw_info v20_hw_info = { .rx_ctrl_flush = ASP_RX_CTRL_FLUSH, .umac2fb = UMAC2FB_OFFSET, @@ -445,6 +574,9 @@ static struct bcmasp_hw_info v20_hw_info = { }; static const struct bcmasp_plat_data v20_plat_data = { + .init_wol = bcmasp_init_wol_per_intf, + .enable_wol = bcmasp_enable_wol_per_intf, + .destroy_wol = bcmasp_wol_irq_destroy_per_intf, .hw_info = &v20_hw_info, }; @@ -458,6 +590,9 @@ static struct bcmasp_hw_info v21_hw_info = { }; static const struct bcmasp_plat_data v21_plat_data = { + .init_wol = bcmasp_init_wol_shared, + .enable_wol = bcmasp_enable_wol_shared, + .destroy_wol = bcmasp_wol_irq_destroy_shared, .hw_info = &v21_hw_info, }; @@ -521,12 +656,16 @@ static int bcmasp_probe(struct platform_device *pdev) priv->pdev = pdev; spin_lock_init(&priv->mda_lock); spin_lock_init(&priv->clk_lock); + mutex_init(&priv->wol_lock); INIT_LIST_HEAD(&priv->intfs); pdata = device_get_match_data(&pdev->dev); if (!pdata) return dev_err_probe(dev, -EINVAL, "unable to find platform data\n"); + priv->init_wol = pdata->init_wol; + priv->enable_wol = pdata->enable_wol; + priv->destroy_wol = pdata->destroy_wol; priv->hw_info = pdata->hw_info; /* Enable all clocks to ensure successful probing */ @@ -570,6 +709,9 @@ static int bcmasp_probe(struct platform_device *pdev) i++; } + /* Check and enable WoL */ + priv->init_wol(priv); + /* Drop the clock reference count now and let ndo_open()/ndo_close() * manage it for us from now on. */ @@ -585,6 +727,7 @@ static int bcmasp_probe(struct platform_device *pdev) if (ret) { netdev_err(intf->ndev, "failed to register net_device: %d\n", ret); + priv->destroy_wol(priv); bcmasp_remove_intfs(priv); goto of_put_exit; } @@ -605,6 +748,7 @@ static int bcmasp_remove(struct platform_device *pdev) if (!priv) return 0; + priv->destroy_wol(priv); bcmasp_remove_intfs(priv); return 0; |