Merge git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

[sfrench/cifs-2.6.git] / drivers / net / macsonic.c

diff --git a/drivers/net/macsonic.c b/drivers/net/macsonic.c
index 393d995f19199cb573b53854e604c62e2c082350..e9ecdbf352ae36b8096eeb9c3abd1cbd1049dfe2 100644 (file)
--- a/drivers/net/macsonic.c
+++ b/drivers/net/macsonic.c
@@ -49,6 +49,7 @@
 #include <linux/skbuff.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/bitrev.h>
 
 #include <asm/bootinfo.h>
 #include <asm/system.h>
@@ -121,16 +122,52 @@ enum macsonic_type {
  * For reversing the PROM address
  */
 
-static unsigned char nibbletab[] = {0, 8, 4, 12, 2, 10, 6, 14,
-                                   1, 9, 5, 13, 3, 11, 7, 15};
-
 static inline void bit_reverse_addr(unsigned char addr[6])
 {
        int i;
 
        for(i = 0; i < 6; i++)
-               addr[i] = ((nibbletab[addr[i] & 0xf] << 4) |
-                          nibbletab[(addr[i] >> 4) &0xf]);
+               addr[i] = bitrev8(addr[i]);
+}
+
+static irqreturn_t macsonic_interrupt(int irq, void *dev_id)
+{
+       irqreturn_t result;
+       unsigned long flags;
+
+       local_irq_save(flags);
+       result = sonic_interrupt(irq, dev_id);
+       local_irq_restore(flags);
+       return result;
+}
+
+static int macsonic_open(struct net_device* dev)
+{
+       if (request_irq(dev->irq, &sonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) {
+               printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
+               return -EAGAIN;
+       }
+       /* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes
+        * in at priority level 3. However, we sometimes get the level 2 inter-
+        * rupt as well, which must prevent re-entrance of the sonic handler.
+        */
+       if (dev->irq == IRQ_AUTO_3)
+               if (request_irq(IRQ_NUBUS_9, &macsonic_interrupt, IRQ_FLG_FAST, "sonic", dev)) {
+                       printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, IRQ_NUBUS_9);
+                       free_irq(dev->irq, dev);
+                       return -EAGAIN;
+               }
+       return sonic_open(dev);
+}
+
+static int macsonic_close(struct net_device* dev)
+{
+       int err;
+       err = sonic_close(dev);
+       free_irq(dev->irq, dev);
+       if (dev->irq == IRQ_AUTO_3)
+               free_irq(IRQ_NUBUS_9, dev);
+       return err;
 }
 
 int __init macsonic_init(struct net_device* dev)
@@ -163,8 +200,8 @@ int __init macsonic_init(struct net_device* dev)
        lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
                             * SONIC_BUS_SCALE(lp->dma_bitmode));
 
-       dev->open = sonic_open;
-       dev->stop = sonic_close;
+       dev->open = macsonic_open;
+       dev->stop = macsonic_close;
        dev->hard_start_xmit = sonic_send_packet;
        dev->get_stats = sonic_get_stats;
        dev->set_multicast_list = &sonic_multicast_list;
@@ -405,7 +442,7 @@ int __init macsonic_ident(struct nubus_dev* ndev)
            ndev->dr_sw == NUBUS_DRSW_DAYNA)
                return MACSONIC_DAYNA;
 
-       if (ndev->dr_hw == NUBUS_DRHW_SONIC_LC &&
+       if (ndev->dr_hw == NUBUS_DRHW_APPLE_SONIC_LC &&
            ndev->dr_sw == 0) { /* huh? */
                return MACSONIC_APPLE16;
        }
@@ -525,7 +562,7 @@ int __init mac_nubus_sonic_probe(struct net_device* dev)
        return macsonic_init(dev);
 }
 
-static int __init mac_sonic_probe(struct platform_device *device)
+static int __init mac_sonic_probe(struct platform_device *pdev)
 {
        struct net_device *dev;
        struct sonic_local *lp;
@@ -537,8 +574,8 @@ static int __init mac_sonic_probe(struct platform_device *device)
                return -ENOMEM;
 
        lp = netdev_priv(dev);
-       lp->device = &device->dev;
-       SET_NETDEV_DEV(dev, &device->dev);
+       lp->device = &pdev->dev;
+       SET_NETDEV_DEV(dev, &pdev->dev);
        SET_MODULE_OWNER(dev);
 
        /* This will catch fatal stuff like -ENOMEM as well as success */
@@ -575,19 +612,17 @@ MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
 module_param(sonic_debug, int, 0);
 MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
 
-#define SONIC_IRQ_FLAG IRQ_FLG_FAST
-
 #include "sonic.c"
 
-static int __devexit mac_sonic_device_remove (struct platform_device *device)
+static int __devexit mac_sonic_device_remove (struct platform_device *pdev)
 {
-       struct net_device *dev = platform_get_drvdata(device);
+       struct net_device *dev = platform_get_drvdata(pdev);
        struct sonic_local* lp = netdev_priv(dev);
 
-       unregister_netdev (dev);
+       unregister_netdev(dev);
        dma_free_coherent(lp->device, SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
                          lp->descriptors, lp->descriptors_laddr);
-       free_netdev (dev);
+       free_netdev(dev);
 
        return 0;
 }
@@ -610,9 +645,8 @@ static int __init mac_sonic_init_module(void)
        }
 
        mac_sonic_device = platform_device_alloc(mac_sonic_string, 0);
-       if (!mac_sonic_device) {
+       if (!mac_sonic_device)
                goto out_unregister;
-       }
 
        if (platform_device_add(mac_sonic_device)) {
                platform_device_put(mac_sonic_device);