From 3c7089199784e3d53054869108cfa5666b42e7ea Mon Sep 17 00:00:00 2001 From: John Crispin Date: Fri, 3 Aug 2012 10:28:51 +0200 Subject: [PATCH 22/25] owrt dm9000 polling --- drivers/net/ethernet/davicom/dm9000.c | 50 +++++++++++++++++++++++++++----- 1 files changed, 42 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c index f801754..258a0c3 100644 --- a/drivers/net/ethernet/davicom/dm9000.c +++ b/drivers/net/ethernet/davicom/dm9000.c @@ -19,6 +19,7 @@ * Sascha Hauer */ +#define DEBUG #include #include #include @@ -132,6 +133,8 @@ 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; @@ -845,6 +848,8 @@ static void dm9000_timeout(struct net_device *dev) 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); @@ -916,6 +921,12 @@ dm9000_start_xmit(struct sk_buff *skb, struct net_device *dev) /* 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; } @@ -1157,6 +1168,18 @@ static void dm9000_poll_controller(struct net_device *dev) } #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. @@ -1170,14 +1193,15 @@ 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 */ @@ -1186,8 +1210,14 @@ 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; @@ -1195,6 +1225,9 @@ 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; @@ -1392,6 +1425,7 @@ dm9000_probe(struct platform_device *pdev) 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); -- 1.7.9.1