diff options
Diffstat (limited to 'target/linux/lantiq/patches/204-owrt-dm9000-polling.patch')
| -rw-r--r-- | target/linux/lantiq/patches/204-owrt-dm9000-polling.patch | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches/204-owrt-dm9000-polling.patch b/target/linux/lantiq/patches/204-owrt-dm9000-polling.patch new file mode 100644 index 0000000000..11fa5396a5 --- /dev/null +++ b/target/linux/lantiq/patches/204-owrt-dm9000-polling.patch @@ -0,0 +1,117 @@ +--- 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> +@@ -126,6 +127,8 @@ 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; +@@ -839,6 +842,8 @@ static void dm9000_timeout(struct net_de + 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; /* prevent tx timeout */ + netif_wake_queue(dev); +@@ -910,6 +915,12 @@ 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; + } + +@@ -1151,6 +1162,18 @@ 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. +@@ -1164,14 +1187,15 @@ 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"); +- +- irqflags |= IRQF_SHARED; ++ if (irqflags == IRQF_TRIGGER_NONE) ++ dev_warn(db->dev, "WARNING: no IRQ resource flags set.\n"); + ++ irqflags |= IRQF_SHARED; ++ } + /* GPIO0 on pre-activate PHY, Reg 1F is not set by reset */ + iow(db, DM9000_GPR, 0); /* REG_1F bit0 activate phyxcer */ + mdelay(1); /* delay needs by DM9000B */ +@@ -1180,8 +1204,14 @@ dm9000_open(struct net_device *dev) + dm9000_reset(db); + dm9000_init_dm9000(dev); + +- if (request_irq(dev->irq, dm9000_interrupt, irqflags, dev->name, dev)) +- return -EAGAIN; ++ /* testing: init a second time */ ++ dm9000_reset(db); ++ dm9000_init_dm9000(dev); ++ ++ if (dev->irq != -1) { ++ if (request_irq(dev->irq, dm9000_interrupt, irqflags, dev->name, dev)) ++ return -EAGAIN; ++ } + + /* Init driver variable */ + db->dbug_cnt = 0; +@@ -1189,6 +1219,9 @@ dm9000_open(struct net_device *dev) + 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; +@@ -1386,6 +1419,7 @@ 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); |