[PATCH] orinoco: support PCI suspend/resume for Nortel, PLX and TMD adaptors

Copy PCI suspend/resume functions from orinoco_pci.c.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/drivers/net/wireless/orinoco_plx.c b/drivers/net/wireless/orinoco_plx.c
index 210e73776545..3fe7a2f37896 100644
--- a/drivers/net/wireless/orinoco_plx.c
+++ b/drivers/net/wireless/orinoco_plx.c
@@ -343,6 +343,83 @@ static void __devexit orinoco_plx_remove_one(struct pci_dev *pdev)
 	pci_disable_device(pdev);
 }
 
+static int orinoco_plx_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	struct orinoco_private *priv = netdev_priv(dev);
+	unsigned long flags;
+	int err;
+
+	err = orinoco_lock(priv, &flags);
+	if (err) {
+		printk(KERN_ERR "%s: cannot lock hardware for suspend\n",
+		       dev->name);
+		return err;
+	}
+
+	err = __orinoco_down(dev);
+	if (err)
+		printk(KERN_WARNING "%s: error %d bringing interface down "
+		       "for suspend\n", dev->name, err);
+	
+	netif_device_detach(dev);
+
+	priv->hw_unavailable++;
+	
+	orinoco_unlock(priv, &flags);
+
+	free_irq(pdev->irq, dev);
+	pci_save_state(pdev);
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, PCI_D3hot);
+
+	return 0;
+}
+
+static int orinoco_plx_resume(struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	struct orinoco_private *priv = netdev_priv(dev);
+	unsigned long flags;
+	int err;
+
+	pci_set_power_state(pdev, 0);
+	pci_enable_device(pdev);
+	pci_restore_state(pdev);
+
+	err = request_irq(pdev->irq, orinoco_interrupt, SA_SHIRQ,
+			  dev->name, dev);
+	if (err) {
+		printk(KERN_ERR "%s: cannot re-allocate IRQ on resume\n",
+		       dev->name);
+		pci_disable_device(pdev);
+		return -EBUSY;
+	}
+
+	err = orinoco_reinit_firmware(dev);
+	if (err) {
+		printk(KERN_ERR "%s: error %d re-initializing firmware "
+		       "on resume\n", dev->name, err);
+		return err;
+	}
+
+	spin_lock_irqsave(&priv->lock, flags);
+
+	netif_device_attach(dev);
+
+	priv->hw_unavailable--;
+
+	if (priv->open && (! priv->hw_unavailable)) {
+		err = __orinoco_up(dev);
+		if (err)
+			printk(KERN_ERR "%s: Error %d restarting card on resume\n",
+			       dev->name, err);
+	}
+	
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	return 0;
+}
 
 static struct pci_device_id orinoco_plx_pci_id_table[] = {
 	{0x111a, 0x1023, PCI_ANY_ID, PCI_ANY_ID,},	/* Siemens SpeedStream SS1023 */
@@ -369,6 +446,8 @@ static struct pci_driver orinoco_plx_driver = {
 	.id_table	= orinoco_plx_pci_id_table,
 	.probe		= orinoco_plx_init_one,
 	.remove		= __devexit_p(orinoco_plx_remove_one),
+	.suspend	= orinoco_plx_suspend,
+	.resume		= orinoco_plx_resume,
 };
 
 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION