Index: chromeos/compat-wireless/drivers/net/wireless/orinoco/airport.c |
diff --git a/chromeos/compat-wireless/drivers/net/wireless/orinoco/airport.c b/chromeos/compat-wireless/drivers/net/wireless/orinoco/airport.c |
new file mode 100644 |
index 0000000000000000000000000000000000000000..4a0a0e5265c9bc068ee7116a240b5f8fa7560487 |
--- /dev/null |
+++ b/chromeos/compat-wireless/drivers/net/wireless/orinoco/airport.c |
@@ -0,0 +1,268 @@ |
+/* airport.c |
+ * |
+ * A driver for "Hermes" chipset based Apple Airport wireless |
+ * card. |
+ * |
+ * Copyright notice & release notes in file main.c |
+ * |
+ * Note specific to airport stub: |
+ * |
+ * 0.05 : first version of the new split driver |
+ * 0.06 : fix possible hang on powerup, add sleep support |
+ */ |
+ |
+#define DRIVER_NAME "airport" |
+#define PFX DRIVER_NAME ": " |
+ |
+#include <linux/module.h> |
+#include <linux/kernel.h> |
+#include <linux/init.h> |
+#include <linux/delay.h> |
+#include <asm/pmac_feature.h> |
+ |
+#include "orinoco.h" |
+ |
+#define AIRPORT_IO_LEN (0x1000) /* one page */ |
+ |
+struct airport { |
+ struct macio_dev *mdev; |
+ void __iomem *vaddr; |
+ unsigned int irq; |
+ int irq_requested; |
+ int ndev_registered; |
+}; |
+ |
+static int |
+airport_suspend(struct macio_dev *mdev, pm_message_t state) |
+{ |
+ struct orinoco_private *priv = dev_get_drvdata(&mdev->ofdev.dev); |
+ struct net_device *dev = priv->ndev; |
+ struct airport *card = priv->card; |
+ unsigned long flags; |
+ int err; |
+ |
+ printk(KERN_DEBUG "%s: Airport entering sleep mode\n", dev->name); |
+ |
+ err = orinoco_lock(priv, &flags); |
+ if (err) { |
+ printk(KERN_ERR "%s: hw_unavailable on PBOOK_SLEEP_NOW\n", |
+ dev->name); |
+ return 0; |
+ } |
+ |
+ orinoco_down(priv); |
+ orinoco_unlock(priv, &flags); |
+ |
+ disable_irq(card->irq); |
+ pmac_call_feature(PMAC_FTR_AIRPORT_ENABLE, |
+ macio_get_of_node(mdev), 0, 0); |
+ |
+ return 0; |
+} |
+ |
+static int |
+airport_resume(struct macio_dev *mdev) |
+{ |
+ struct orinoco_private *priv = dev_get_drvdata(&mdev->ofdev.dev); |
+ struct net_device *dev = priv->ndev; |
+ struct airport *card = priv->card; |
+ unsigned long flags; |
+ int err; |
+ |
+ printk(KERN_DEBUG "%s: Airport waking up\n", dev->name); |
+ |
+ pmac_call_feature(PMAC_FTR_AIRPORT_ENABLE, |
+ macio_get_of_node(mdev), 0, 1); |
+ msleep(200); |
+ |
+ enable_irq(card->irq); |
+ |
+ priv->hw.ops->lock_irqsave(&priv->lock, &flags); |
+ err = orinoco_up(priv); |
+ priv->hw.ops->unlock_irqrestore(&priv->lock, &flags); |
+ |
+ return err; |
+} |
+ |
+static int |
+airport_detach(struct macio_dev *mdev) |
+{ |
+ struct orinoco_private *priv = dev_get_drvdata(&mdev->ofdev.dev); |
+ struct airport *card = priv->card; |
+ |
+ if (card->ndev_registered) |
+ orinoco_if_del(priv); |
+ card->ndev_registered = 0; |
+ |
+ if (card->irq_requested) |
+ free_irq(card->irq, priv); |
+ card->irq_requested = 0; |
+ |
+ if (card->vaddr) |
+ iounmap(card->vaddr); |
+ card->vaddr = NULL; |
+ |
+ macio_release_resource(mdev, 0); |
+ |
+ pmac_call_feature(PMAC_FTR_AIRPORT_ENABLE, |
+ macio_get_of_node(mdev), 0, 0); |
+ ssleep(1); |
+ |
+ macio_set_drvdata(mdev, NULL); |
+ free_orinocodev(priv); |
+ |
+ return 0; |
+} |
+ |
+static int airport_hard_reset(struct orinoco_private *priv) |
+{ |
+ /* It would be nice to power cycle the Airport for a real hard |
+ * reset, but for some reason although it appears to |
+ * re-initialize properly, it falls in a screaming heap |
+ * shortly afterwards. */ |
+#if 0 |
+ struct airport *card = priv->card; |
+ |
+ /* Vitally important. If we don't do this it seems we get an |
+ * interrupt somewhere during the power cycle, since |
+ * hw_unavailable is already set it doesn't get ACKed, we get |
+ * into an interrupt loop and the PMU decides to turn us |
+ * off. */ |
+ disable_irq(card->irq); |
+ |
+ pmac_call_feature(PMAC_FTR_AIRPORT_ENABLE, |
+ macio_get_of_node(card->mdev), 0, 0); |
+ ssleep(1); |
+ pmac_call_feature(PMAC_FTR_AIRPORT_ENABLE, |
+ macio_get_of_node(card->mdev), 0, 1); |
+ ssleep(1); |
+ |
+ enable_irq(card->irq); |
+ ssleep(1); |
+#endif |
+ |
+ return 0; |
+} |
+ |
+static int |
+airport_attach(struct macio_dev *mdev, const struct of_device_id *match) |
+{ |
+ struct orinoco_private *priv; |
+ struct airport *card; |
+ unsigned long phys_addr; |
+ hermes_t *hw; |
+ |
+ if (macio_resource_count(mdev) < 1 || macio_irq_count(mdev) < 1) { |
+ printk(KERN_ERR PFX "Wrong interrupt/addresses in OF tree\n"); |
+ return -ENODEV; |
+ } |
+ |
+ /* Allocate space for private device-specific data */ |
+ priv = alloc_orinocodev(sizeof(*card), &mdev->ofdev.dev, |
+ airport_hard_reset, NULL); |
+ if (!priv) { |
+ printk(KERN_ERR PFX "Cannot allocate network device\n"); |
+ return -ENODEV; |
+ } |
+ card = priv->card; |
+ |
+ hw = &priv->hw; |
+ card->mdev = mdev; |
+ |
+ if (macio_request_resource(mdev, 0, DRIVER_NAME)) { |
+ printk(KERN_ERR PFX "can't request IO resource !\n"); |
+ free_orinocodev(priv); |
+ return -EBUSY; |
+ } |
+ |
+ macio_set_drvdata(mdev, priv); |
+ |
+ /* Setup interrupts & base address */ |
+ card->irq = macio_irq(mdev, 0); |
+ phys_addr = macio_resource_start(mdev, 0); /* Physical address */ |
+ printk(KERN_DEBUG PFX "Physical address %lx\n", phys_addr); |
+ card->vaddr = ioremap(phys_addr, AIRPORT_IO_LEN); |
+ if (!card->vaddr) { |
+ printk(KERN_ERR PFX "ioremap() failed\n"); |
+ goto failed; |
+ } |
+ |
+ hermes_struct_init(hw, card->vaddr, HERMES_16BIT_REGSPACING); |
+ |
+ /* Power up card */ |
+ pmac_call_feature(PMAC_FTR_AIRPORT_ENABLE, |
+ macio_get_of_node(mdev), 0, 1); |
+ ssleep(1); |
+ |
+ /* Reset it before we get the interrupt */ |
+ hw->ops->init(hw); |
+ |
+ if (request_irq(card->irq, orinoco_interrupt, 0, DRIVER_NAME, priv)) { |
+ printk(KERN_ERR PFX "Couldn't get IRQ %d\n", card->irq); |
+ goto failed; |
+ } |
+ card->irq_requested = 1; |
+ |
+ /* Initialise the main driver */ |
+ if (orinoco_init(priv) != 0) { |
+ printk(KERN_ERR PFX "orinoco_init() failed\n"); |
+ goto failed; |
+ } |
+ |
+ /* Register an interface with the stack */ |
+ if (orinoco_if_add(priv, phys_addr, card->irq, NULL) != 0) { |
+ printk(KERN_ERR PFX "orinoco_if_add() failed\n"); |
+ goto failed; |
+ } |
+ card->ndev_registered = 1; |
+ return 0; |
+ failed: |
+ airport_detach(mdev); |
+ return -ENODEV; |
+} /* airport_attach */ |
+ |
+ |
+static char version[] __initdata = DRIVER_NAME " " DRIVER_VERSION |
+ " (Benjamin Herrenschmidt <benh@kernel.crashing.org>)"; |
+MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>"); |
+MODULE_DESCRIPTION("Driver for the Apple Airport wireless card."); |
+MODULE_LICENSE("Dual MPL/GPL"); |
+ |
+static struct of_device_id airport_match[] = |
+{ |
+ { |
+ .name = "radio", |
+ }, |
+ {}, |
+}; |
+ |
+MODULE_DEVICE_TABLE(of, airport_match); |
+ |
+static struct macio_driver airport_driver = { |
+ .driver = { |
+ .name = DRIVER_NAME, |
+ .owner = THIS_MODULE, |
+ .of_match_table = airport_match, |
+ }, |
+ .probe = airport_attach, |
+ .remove = airport_detach, |
+ .suspend = airport_suspend, |
+ .resume = airport_resume, |
+}; |
+ |
+static int __init |
+init_airport(void) |
+{ |
+ printk(KERN_DEBUG "%s\n", version); |
+ |
+ return macio_register_driver(&airport_driver); |
+} |
+ |
+static void __exit |
+exit_airport(void) |
+{ |
+ macio_unregister_driver(&airport_driver); |
+} |
+ |
+module_init(init_airport); |
+module_exit(exit_airport); |