diff options
Diffstat (limited to 'target/linux/lantiq/patches-2.6.32/350-dm9000-polling.patch')
| -rw-r--r-- | target/linux/lantiq/patches-2.6.32/350-dm9000-polling.patch | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-2.6.32/350-dm9000-polling.patch b/target/linux/lantiq/patches-2.6.32/350-dm9000-polling.patch new file mode 100644 index 000000000..9f60f6fee --- /dev/null +++ b/target/linux/lantiq/patches-2.6.32/350-dm9000-polling.patch @@ -0,0 +1,119 @@ +--- a/drivers/net/dm9000.c ++++ b/drivers/net/dm9000.c +@@ -19,6 +19,7 @@ + * Sascha Hauer <s.hauer@pengutronix.de> + */ + ++#define DEBUG + #include <linux/module.h> + #include <linux/ioport.h> + #include <linux/netdevice.h> +@@ -121,6 +122,8 @@ typedef struct board_info { + struct delayed_work phy_poll; + struct net_device *ndev; + ++ struct delayed_work irq_poll; /* for use in irq polling mode */ ++ + spinlock_t lock; + + struct mii_if_info mii; +@@ -790,12 +793,14 @@ static void dm9000_timeout(struct net_de + unsigned long flags; + + /* Save previous register address */ +- reg_save = readb(db->io_addr); + spin_lock_irqsave(&db->lock, flags); ++ reg_save = readb(db->io_addr); + + netif_stop_queue(dev); + dm9000_reset(db); + dm9000_init_dm9000(dev); ++ dm9000_reset(db); ++ dm9000_init_dm9000(dev); + /* We can accept TX packets again */ + dev->trans_start = jiffies; + netif_wake_queue(dev); +@@ -867,6 +872,12 @@ dm9000_start_xmit(struct sk_buff *skb, s + /* free this SKB */ + dev_kfree_skb(skb); + ++ /* directly poll afterwards */ ++ if (dev->irq == -1) { ++ cancel_delayed_work(&db->irq_poll); ++ schedule_delayed_work(&db->irq_poll, 1); ++ } ++ + return NETDEV_TX_OK; + } + +@@ -1073,6 +1084,18 @@ static void dm9000_poll_controller(struc + } + #endif + ++static void dm9000_poll_irq(struct work_struct *w) ++{ ++ struct delayed_work *dw = to_delayed_work(w); ++ board_info_t *db = container_of(dw, board_info_t, irq_poll); ++ struct net_device *ndev = db->ndev; ++ ++ dm9000_interrupt(0, ndev); ++ ++ if (netif_running(ndev)) ++ schedule_delayed_work(&db->irq_poll, HZ /100); ++} ++ + /* + * Open the interface. + * The interface is opened whenever "ifconfig" actives it. +@@ -1086,27 +1109,35 @@ dm9000_open(struct net_device *dev) + if (netif_msg_ifup(db)) + dev_dbg(db->dev, "enabling %s\n", dev->name); + +- /* If there is no IRQ type specified, default to something that +- * may work, and tell the user that this is a problem */ ++ if (dev->irq != -1) { ++ /* If there is no IRQ type specified, default to something that ++ * may work, and tell the user that this is a problem */ + +- if (irqflags == IRQF_TRIGGER_NONE) +- dev_warn(db->dev, "WARNING: no IRQ resource flags set.\n"); ++ if (irqflags == IRQF_TRIGGER_NONE) ++ dev_warn(db->dev, "WARNING: no IRQ resource flags set.\n"); + +- irqflags |= IRQF_SHARED; ++ irqflags |= IRQF_SHARED; + +- if (request_irq(dev->irq, &dm9000_interrupt, irqflags, dev->name, dev)) +- return -EAGAIN; ++ if (request_irq(dev->irq, dm9000_interrupt, irqflags, dev->name, dev)) ++ return -EAGAIN; ++ } + + /* Initialize DM9000 board */ + dm9000_reset(db); + dm9000_init_dm9000(dev); ++ /* workaround: init a second time */ ++ dm9000_reset(db); ++ dm9000_init_dm9000(dev); + + /* Init driver variable */ + db->dbug_cnt = 0; + + mii_check_media(&db->mii, netif_msg_link(db), 1); + netif_start_queue(dev); +- ++ ++ if (dev->irq == -1) ++ schedule_delayed_work(&db->irq_poll, HZ / 100); ++ + dm9000_schedule_poll(db); + + return 0; +@@ -1303,6 +1334,7 @@ dm9000_probe(struct platform_device *pde + mutex_init(&db->addr_lock); + + INIT_DELAYED_WORK(&db->phy_poll, dm9000_poll_work); ++ INIT_DELAYED_WORK(&db->irq_poll, dm9000_poll_irq); + + db->addr_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + db->data_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); |