[PATCH] orinoco: reduce differences between PCI drivers, create orinoco_pci.h

Make all Orinoco PCI drivers (orinoco_pci, orinoco_plx, orinoco_tmd and
orinoco_nortel) as similar as possible.  Use the best implementation of
error handling, the best error messages, the best comments.

Put common code to orinoco_pci.h.  For now, it's suspend and resume
functions and function for registering the network device.

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

1 files changed, 43 insertions, 122 deletions

diff --git a/drivers/net/wireless/orinoco_tmd.c b/drivers/net/wireless/orinoco_tmd.c
index b74807d4141..438fe545b18 100644
--- a/drivers/net/wireless/orinoco_tmd.c
+++ b/drivers/net/wireless/orinoco_tmd.c
@@ -1,5 +1,5 @@
 /* orinoco_tmd.c
- * 
+ *
  * Driver for Prism II devices which would usually be driven by orinoco_cs,
  * but are connected to the PCI bus by a TMD7160. 
  *
@@ -29,14 +29,14 @@
 
  * Caution: this is experimental and probably buggy.  For success and
  * failure reports for different cards and adaptors, see
- * orinoco_tmd_pci_id_table near the end of the file.  If you have a
+ * orinoco_tmd_id_table near the end of the file.  If you have a
  * card we don't have the PCI id for, and looks like it should work,
  * drop me mail with the id and "it works"/"it doesn't work".
  *
  * Note: if everything gets detected fine but it doesn't actually send
- * or receive packets, your first port of call should probably be to   
+ * or receive packets, your first port of call should probably be to
  * try newer firmware in the card.  Especially if you're doing Ad-Hoc
- * modes
+ * modes.
  *
  * The actual driving is done by orinoco.c, this is just resource
  * allocation stuff.
@@ -61,32 +61,26 @@
 #include <pcmcia/cisreg.h>
 
 #include "orinoco.h"
+#include "orinoco_pci.h"
 
 #define COR_VALUE	(COR_LEVEL_REQ | COR_FUNC_ENA) /* Enable PC card with interrupt in level trigger */
 #define COR_RESET     (0x80)	/* reset bit in the COR register */
 #define TMD_RESET_TIME	(500)	/* milliseconds */
 
-/* Orinoco TMD specific data */
-struct orinoco_tmd_card {
-	u32 tmd_io;
-};
-
-
 /*
  * Do a soft reset of the card using the Configuration Option Register
  */
 static int orinoco_tmd_cor_reset(struct orinoco_private *priv)
 {
 	hermes_t *hw = &priv->hw;
-	struct orinoco_tmd_card *card = priv->card;
-	u32 addr = card->tmd_io;
+	struct orinoco_pci_card *card = priv->card;
 	unsigned long timeout;
 	u16 reg;
 
-	outb(COR_VALUE | COR_RESET, addr);
+	iowrite8(COR_VALUE | COR_RESET, card->bridge_io);
 	mdelay(1);
 
-	outb(COR_VALUE, addr);
+	iowrite8(COR_VALUE, card->bridge_io);
 	mdelay(1);
 
 	/* Just in case, wait more until the card is no longer busy */
@@ -97,7 +91,7 @@ static int orinoco_tmd_cor_reset(struct orinoco_private *priv)
 		reg = hermes_read_regn(hw, CMD);
 	}
 
-	/* Did we timeout ? */
+	/* Still busy? */
 	if (reg & HERMES_CMD_BUSY) {
 		printk(KERN_ERR PFX "Busy timeout\n");
 		return -ETIMEDOUT;
@@ -110,11 +104,11 @@ static int orinoco_tmd_cor_reset(struct orinoco_private *priv)
 static int orinoco_tmd_init_one(struct pci_dev *pdev,
 				const struct pci_device_id *ent)
 {
-	int err = 0;
-	struct orinoco_private *priv = NULL;
-	struct orinoco_tmd_card *card;
-	struct net_device *dev = NULL;
-	void __iomem *mem;
+	int err;
+	struct orinoco_private *priv;
+	struct orinoco_pci_card *card;
+	struct net_device *dev;
+	void __iomem *hermes_io, *bridge_io;
 
 	err = pci_enable_device(pdev);
 	if (err) {
@@ -123,20 +117,28 @@ static int orinoco_tmd_init_one(struct pci_dev *pdev,
 	}
 
 	err = pci_request_regions(pdev, DRIVER_NAME);
-	if (err != 0) {
+	if (err) {
 		printk(KERN_ERR PFX "Cannot obtain PCI resources\n");
 		goto fail_resources;
 	}
 
-	mem = pci_iomap(pdev, 2, 0);
-	if (! mem) {
-		err = -ENOMEM;
-		goto fail_iomap;
+	bridge_io = pci_iomap(pdev, 1, 0);
+	if (!bridge_io) {
+		printk(KERN_ERR PFX "Cannot map bridge registers\n");
+		err = -EIO;
+		goto fail_map_bridge;
+	}
+
+	hermes_io = pci_iomap(pdev, 2, 0);
+	if (!hermes_io) {
+		printk(KERN_ERR PFX "Cannot map chipset registers\n");
+		err = -EIO;
+		goto fail_map_hermes;
 	}
 
 	/* Allocate network device */
 	dev = alloc_orinocodev(sizeof(*card), orinoco_tmd_cor_reset);
-	if (! dev) {
+	if (!dev) {
 		printk(KERN_ERR PFX "Cannot allocate network device\n");
 		err = -ENOMEM;
 		goto fail_alloc;
@@ -144,16 +146,11 @@ static int orinoco_tmd_init_one(struct pci_dev *pdev,
 
 	priv = netdev_priv(dev);
 	card = priv->card;
-	card->tmd_io = pci_resource_start(pdev, 1);
-	dev->base_addr = pci_resource_start(pdev, 2);
+	card->bridge_io = bridge_io;
 	SET_MODULE_OWNER(dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
-	hermes_struct_init(&priv->hw, mem, HERMES_16BIT_REGSPACING);
-
-	printk(KERN_DEBUG PFX "Detected Orinoco/Prism2 TMD device "
-	       "at %s irq:%d, io addr:0x%lx\n", pci_name(pdev), pdev->irq,
-	       dev->base_addr);
+	hermes_struct_init(&priv->hw, hermes_io, HERMES_16BIT_REGSPACING);
 
 	err = request_irq(pdev->irq, orinoco_interrupt, SA_SHIRQ,
 			  dev->name, dev);
@@ -162,7 +159,7 @@ static int orinoco_tmd_init_one(struct pci_dev *pdev,
 		err = -EBUSY;
 		goto fail_irq;
 	}
-	dev->irq = pdev->irq;
+	orinoco_pci_setup_netdev(dev, pdev, 2);
 
 	err = orinoco_tmd_cor_reset(priv);
 	if (err) {
@@ -188,9 +185,12 @@ static int orinoco_tmd_init_one(struct pci_dev *pdev,
 	free_orinocodev(dev);
 
  fail_alloc:
-	pci_iounmap(pdev, mem);
+	pci_iounmap(pdev, hermes_io);
 
- fail_iomap:
+ fail_map_hermes:
+	pci_iounmap(pdev, bridge_io);
+
+ fail_map_bridge:
 	pci_release_regions(pdev);
 
  fail_resources:
@@ -203,110 +203,32 @@ static void __devexit orinoco_tmd_remove_one(struct pci_dev *pdev)
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
 	struct orinoco_private *priv = dev->priv;
-
-	BUG_ON(! dev);
+	struct orinoco_pci_card *card = priv->card;
 
 	unregister_netdev(dev);
 	free_irq(dev->irq, dev);
 	pci_set_drvdata(pdev, NULL);
 	free_orinocodev(dev);
 	pci_iounmap(pdev, priv->hw.iobase);
+	pci_iounmap(pdev, card->bridge_io);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
 }
 
-static int orinoco_tmd_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_tmd_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_tmd_pci_id_table[] = {
+static struct pci_device_id orinoco_tmd_id_table[] = {
 	{0x15e8, 0x0131, PCI_ANY_ID, PCI_ANY_ID,},      /* NDC and OEMs, e.g. pheecom */
 	{0,},
 };
 
-MODULE_DEVICE_TABLE(pci, orinoco_tmd_pci_id_table);
+MODULE_DEVICE_TABLE(pci, orinoco_tmd_id_table);
 
 static struct pci_driver orinoco_tmd_driver = {
 	.name		= DRIVER_NAME,
-	.id_table	= orinoco_tmd_pci_id_table,
+	.id_table	= orinoco_tmd_id_table,
 	.probe		= orinoco_tmd_init_one,
 	.remove		= __devexit_p(orinoco_tmd_remove_one),
-	.suspend	= orinoco_tmd_suspend,
-	.resume		= orinoco_tmd_resume,
+	.suspend	= orinoco_pci_suspend,
+	.resume		= orinoco_pci_resume,
 };
 
 static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION
@@ -324,7 +246,6 @@ static int __init orinoco_tmd_init(void)
 static void __exit orinoco_tmd_exit(void)
 {
 	pci_unregister_driver(&orinoco_tmd_driver);
-	ssleep(1);
 }
 
 module_init(orinoco_tmd_init);