diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/dm9000.c | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c index 5fddc0ff8878..1d92ddd1ec35 100644 --- a/drivers/net/dm9000.c +++ b/drivers/net/dm9000.c @@ -48,6 +48,10 @@ * net_device_stats * * introduced tx_timeout function * * reworked locking + * + * 01-Jul-2005 Ben Dooks <ben@simtec.co.uk> + * * fixed spinlock call without pointer + * * ensure spinlock is initialised */ #include <linux/module.h> @@ -322,7 +326,7 @@ static void dm9000_timeout(struct net_device *dev) /* Save previous register address */ reg_save = readb(db->io_addr); - spin_lock_irqsave(db->lock,flags); + spin_lock_irqsave(&db->lock,flags); netif_stop_queue(dev); dm9000_reset(db); @@ -333,7 +337,7 @@ static void dm9000_timeout(struct net_device *dev) /* Restore previous register address */ writeb(reg_save, db->io_addr); - spin_unlock_irqrestore(db->lock,flags); + spin_unlock_irqrestore(&db->lock,flags); } @@ -405,6 +409,8 @@ dm9000_probe(struct device *dev) db = (struct board_info *) ndev->priv; memset(db, 0, sizeof (*db)); + spin_lock_init(&db->lock); + if (pdev->num_resources < 2) { ret = -ENODEV; goto out; @@ -612,7 +618,7 @@ dm9000_open(struct net_device *dev) /* set and active a timer process */ init_timer(&db->timer); - db->timer.expires = DM9000_TIMER_WUT * 2; + db->timer.expires = DM9000_TIMER_WUT; db->timer.data = (unsigned long) dev; db->timer.function = &dm9000_timer; add_timer(&db->timer); @@ -864,21 +870,11 @@ dm9000_timer(unsigned long data) { struct net_device *dev = (struct net_device *) data; board_info_t *db = (board_info_t *) dev->priv; - u8 reg_save; - unsigned long flags; PRINTK3("dm9000_timer()\n"); - spin_lock_irqsave(db->lock,flags); - /* Save previous register address */ - reg_save = readb(db->io_addr); - mii_check_media(&db->mii, netif_msg_link(db), 0); - /* Restore previous register address */ - writeb(reg_save, db->io_addr); - spin_unlock_irqrestore(db->lock,flags); - /* Set timer again */ db->timer.expires = DM9000_TIMER_WUT; add_timer(&db->timer); @@ -1098,9 +1094,14 @@ dm9000_phy_read(struct net_device *dev, int phy_reg_unused, int reg) { board_info_t *db = (board_info_t *) dev->priv; unsigned long flags; + unsigned int reg_save; int ret; spin_lock_irqsave(&db->lock,flags); + + /* Save previous register address */ + reg_save = readb(db->io_addr); + /* Fill the phyxcer register into REG_0C */ iow(db, DM9000_EPAR, DM9000_PHY | reg); @@ -1111,6 +1112,9 @@ dm9000_phy_read(struct net_device *dev, int phy_reg_unused, int reg) /* The read data keeps on REG_0D & REG_0E */ ret = (ior(db, DM9000_EPDRH) << 8) | ior(db, DM9000_EPDRL); + /* restore the previous address */ + writeb(reg_save, db->io_addr); + spin_unlock_irqrestore(&db->lock,flags); return ret; @@ -1124,9 +1128,13 @@ dm9000_phy_write(struct net_device *dev, int phyaddr_unused, int reg, int value) { board_info_t *db = (board_info_t *) dev->priv; unsigned long flags; + unsigned long reg_save; spin_lock_irqsave(&db->lock,flags); + /* Save previous register address */ + reg_save = readb(db->io_addr); + /* Fill the phyxcer register into REG_0C */ iow(db, DM9000_EPAR, DM9000_PHY | reg); @@ -1138,6 +1146,9 @@ dm9000_phy_write(struct net_device *dev, int phyaddr_unused, int reg, int value) udelay(500); /* Wait write complete */ iow(db, DM9000_EPCR, 0x0); /* Clear phyxcer write command */ + /* restore the previous address */ + writeb(reg_save, db->io_addr); + spin_unlock_irqrestore(&db->lock,flags); } |