diff options
Diffstat (limited to 'drivers/net/ethernet/davicom/dm9000.c')
| -rw-r--r-- | drivers/net/ethernet/davicom/dm9000.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c index a10671ecbf81..a34f9fcc3992 100644 --- a/drivers/net/ethernet/davicom/dm9000.c +++ b/drivers/net/ethernet/davicom/dm9000.c @@ -882,6 +882,18 @@ dm9000_hash_table(struct net_device *dev) spin_unlock_irqrestore(&db->lock, flags); } +static void +dm9000_mask_interrupts(board_info_t *db) +{ + iow(db, DM9000_IMR, IMR_PAR); +} + +static void +dm9000_unmask_interrupts(board_info_t *db) +{ + iow(db, DM9000_IMR, db->imr_all); +} + /* * Initialize dm9000 board */ @@ -895,6 +907,7 @@ dm9000_init_dm9000(struct net_device *dev) dm9000_dbg(db, 1, "entering %s\n", __func__); dm9000_reset(db); + dm9000_mask_interrupts(db); /* I/O mode */ db->io_mode = ior(db, DM9000_ISR) >> 6; /* ISR bit7:6 keeps I/O mode */ @@ -943,9 +956,6 @@ dm9000_init_dm9000(struct net_device *dev) db->imr_all = imr; - /* Enable TX/RX interrupt mask */ - iow(db, DM9000_IMR, imr); - /* Init Driver variable */ db->tx_pkt_cnt = 0; db->queue_pkt_len = 0; @@ -965,6 +975,7 @@ static void dm9000_timeout(struct net_device *dev) netif_stop_queue(dev); dm9000_init_dm9000(dev); + dm9000_unmask_interrupts(db); /* We can accept TX packets again */ dev->trans_start = jiffies; /* prevent tx timeout */ netif_wake_queue(dev); @@ -1194,9 +1205,7 @@ static irqreturn_t dm9000_interrupt(int irq, void *dev_id) /* Save previous register address */ reg_save = readb(db->io_addr); - /* Disable all interrupts */ - iow(db, DM9000_IMR, IMR_PAR); - + dm9000_mask_interrupts(db); /* Got DM9000 interrupt status */ int_status = ior(db, DM9000_ISR); /* Got ISR */ iow(db, DM9000_ISR, int_status); /* Clear ISR status */ @@ -1219,9 +1228,7 @@ static irqreturn_t dm9000_interrupt(int irq, void *dev_id) } } - /* Re-enable interrupt mask */ - iow(db, DM9000_IMR, db->imr_all); - + dm9000_unmask_interrupts(db); /* Restore previous register address */ writeb(reg_save, db->io_addr); @@ -1309,6 +1316,10 @@ dm9000_open(struct net_device *dev) if (request_irq(dev->irq, dm9000_interrupt, irqflags, dev->name, dev)) return -EAGAIN; + /* Now that we have an interrupt handler hooked up we can unmask + * our interrupts + */ + dm9000_unmask_interrupts(db); /* Init driver variable */ db->dbug_cnt = 0; @@ -1329,7 +1340,7 @@ dm9000_shutdown(struct net_device *dev) /* RESET device */ dm9000_phy_write(dev, 0, MII_BMCR, BMCR_RESET); /* PHY RESET */ iow(db, DM9000_GPR, 0x01); /* Power-Down PHY */ - iow(db, DM9000_IMR, IMR_PAR); /* Disable all interrupt */ + dm9000_mask_interrupts(db); iow(db, DM9000_RCR, 0x00); /* Disable RX */ } @@ -1694,6 +1705,7 @@ dm9000_drv_resume(struct device *dev) * the device was powered off it is in a known state */ if (!db->wake_state) { dm9000_init_dm9000(ndev); + dm9000_unmask_interrupts(db); } netif_device_attach(ndev); |