#include <linux/module.h>
#include <linux/init.h>
-#include <linux/config.h>
#include <linux/mii.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#define DRV_NAME "at91_ether"
#define DRV_VERSION "1.0"
-static struct net_device *at91_dev;
-static struct clk *ether_clk;
+#define LINK_POLL_INTERVAL (HZ)
/* ..................................................................... */
* MAC accordingly.
* If no link or auto-negotiation is busy, then no changes are made.
*/
-static void update_linkspeed(struct net_device *dev)
+static void update_linkspeed(struct net_device *dev, int silent)
{
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
unsigned int bmsr, bmcr, lpa, mac_cfg;
unsigned int speed, duplex;
if (!mii_link_ok(&lp->mii)) { /* no link */
netif_carrier_off(dev);
- printk(KERN_INFO "%s: Link down.\n", dev->name);
+ if (!silent)
+ printk(KERN_INFO "%s: Link down.\n", dev->name);
return;
}
}
at91_emac_write(AT91_EMAC_CFG, mac_cfg);
- printk(KERN_INFO "%s: Link now %i-%s\n", dev->name, speed, (duplex == DUPLEX_FULL) ? "FullDuplex" : "HalfDuplex");
+ if (!silent)
+ printk(KERN_INFO "%s: Link now %i-%s\n", dev->name, speed, (duplex == DUPLEX_FULL) ? "FullDuplex" : "HalfDuplex");
netif_carrier_on(dev);
}
/*
* Handle interrupts from the PHY
*/
-static irqreturn_t at91ether_phy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t at91ether_phy_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
unsigned int phy;
/*
goto done;
}
- update_linkspeed(dev);
+ update_linkspeed(dev, 0);
done:
disable_mdi();
*/
static void enable_phyirq(struct net_device *dev)
{
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
unsigned int dsintr, irq_number;
int status;
- if (lp->phy_type == MII_RTL8201_ID) /* RTL8201 does not have an interrupt */
- return;
- if (lp->phy_type == MII_DP83847_ID) /* DP83847 does not have an interrupt */
- return;
- if (lp->phy_type == MII_AC101L_ID) /* AC101L interrupt not supported yet */
+ irq_number = lp->board_data.phy_irq_pin;
+ if (!irq_number) {
+ /*
+ * PHY doesn't have an IRQ pin (RTL8201, DP83847, AC101L),
+ * or board does not have it connected.
+ */
+ mod_timer(&lp->check_timer, jiffies + LINK_POLL_INTERVAL);
return;
+ }
- irq_number = lp->board_data.phy_irq_pin;
status = request_irq(irq_number, at91ether_phy_interrupt, 0, dev->name, dev);
if (status) {
printk(KERN_ERR "at91_ether: PHY IRQ %d request failed - status %d!\n", irq_number, status);
*/
static void disable_phyirq(struct net_device *dev)
{
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
unsigned int dsintr;
unsigned int irq_number;
- if (lp->phy_type == MII_RTL8201_ID) /* RTL8201 does not have an interrupt */
- return;
- if (lp->phy_type == MII_DP83847_ID) /* DP83847 does not have an interrupt */
- return;
- if (lp->phy_type == MII_AC101L_ID) /* AC101L interrupt not supported yet */
+ irq_number = lp->board_data.phy_irq_pin;
+ if (!irq_number) {
+ del_timer_sync(&lp->check_timer);
return;
+ }
spin_lock_irq(&lp->lock);
enable_mdi();
disable_mdi();
spin_unlock_irq(&lp->lock);
- irq_number = lp->board_data.phy_irq_pin;
free_irq(irq_number, dev); /* Free interrupt handler */
}
#if 0
static void reset_phy(struct net_device *dev)
{
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
unsigned int bmcr;
spin_lock_irq(&lp->lock);
}
#endif
+static void at91ether_check_link(unsigned long dev_id)
+{
+ struct net_device *dev = (struct net_device *) dev_id;
+ struct at91_private *lp = netdev_priv(dev);
+
+ enable_mdi();
+ update_linkspeed(dev, 1);
+ disable_mdi();
+
+ mod_timer(&lp->check_timer, jiffies + LINK_POLL_INTERVAL);
+}
+
/* ......................... ADDRESS MANAGEMENT ........................ */
/*
hash_index |= (bitval << j);
}
- return hash_index;
+ return hash_index;
}
/*
at91_emac_write(AT91_EMAC_CFG, cfg);
}
-
/* ......................... ETHTOOL SUPPORT ........................... */
-
static int mdio_read(struct net_device *dev, int phy_id, int location)
{
unsigned int value;
static int at91ether_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
int ret;
spin_lock_irq(&lp->lock);
static int at91ether_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
int ret;
spin_lock_irq(&lp->lock);
static int at91ether_nwayreset(struct net_device *dev)
{
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
int ret;
spin_lock_irq(&lp->lock);
strlcpy(info->bus_info, dev->class_dev.dev->bus_id, sizeof(info->bus_info));
}
-static struct ethtool_ops at91ether_ethtool_ops = {
+static const struct ethtool_ops at91ether_ethtool_ops = {
.get_settings = at91ether_get_settings,
.set_settings = at91ether_set_settings,
.get_drvinfo = at91ether_get_drvinfo,
.get_link = ethtool_op_get_link,
};
+static int at91ether_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct at91_private *lp = netdev_priv(dev);
+ int res;
+
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ spin_lock_irq(&lp->lock);
+ enable_mdi();
+ res = generic_mii_ioctl(&lp->mii, if_mii(rq), cmd, NULL);
+ disable_mdi();
+ spin_unlock_irq(&lp->lock);
+
+ return res;
+}
/* ................................ MAC ................................ */
*/
static void at91ether_start(struct net_device *dev)
{
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
struct recv_desc_bufs *dlist, *dlist_phys;
int i;
unsigned long ctl;
*/
static int at91ether_open(struct net_device *dev)
{
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
unsigned long ctl;
- if (!is_valid_ether_addr(dev->dev_addr))
- return -EADDRNOTAVAIL;
+ if (!is_valid_ether_addr(dev->dev_addr))
+ return -EADDRNOTAVAIL;
- clk_enable(ether_clk); /* Re-enable Peripheral clock */
+ clk_enable(lp->ether_clk); /* Re-enable Peripheral clock */
/* Clear internal statistics */
ctl = at91_emac_read(AT91_EMAC_CTL);
/* Determine current link speed */
spin_lock_irq(&lp->lock);
enable_mdi();
- update_linkspeed(dev);
+ update_linkspeed(dev, 0);
disable_mdi();
spin_unlock_irq(&lp->lock);
*/
static int at91ether_close(struct net_device *dev)
{
+ struct at91_private *lp = netdev_priv(dev);
unsigned long ctl;
/* Disable Receiver and Transmitter */
netif_stop_queue(dev);
- clk_disable(ether_clk); /* Disable Peripheral clock */
+ clk_disable(lp->ether_clk); /* Disable Peripheral clock */
return 0;
}
*/
static int at91ether_tx(struct sk_buff *skb, struct net_device *dev)
{
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
if (at91_emac_read(AT91_EMAC_TSR) & AT91_EMAC_TSR_BNQ) {
netif_stop_queue(dev);
*/
static struct net_device_stats *at91ether_stats(struct net_device *dev)
{
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
int ale, lenerr, seqe, lcol, ecol;
if (netif_running(dev)) {
*/
static void at91ether_rx(struct net_device *dev)
{
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
struct recv_desc_bufs *dlist;
unsigned char *p_recv;
struct sk_buff *skb;
while (dlist->descriptors[lp->rxBuffIndex].addr & EMAC_DESC_DONE) {
p_recv = dlist->recv_buf[lp->rxBuffIndex];
pktlen = dlist->descriptors[lp->rxBuffIndex].size & 0x7ff; /* Length of frame including FCS */
- skb = alloc_skb(pktlen + 2, GFP_ATOMIC);
+ skb = dev_alloc_skb(pktlen + 2);
if (skb != NULL) {
skb_reserve(skb, 2);
memcpy(skb_put(skb, pktlen), p_recv, pktlen);
skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
- skb->len = pktlen;
dev->last_rx = jiffies;
lp->stats.rx_bytes += pktlen;
netif_rx(skb);
/*
* MAC interrupt handler
*/
-static irqreturn_t at91ether_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t at91ether_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *) dev_id;
- struct at91_private *lp = (struct at91_private *) dev->priv;
+ struct at91_private *lp = netdev_priv(dev);
unsigned long intstatus, ctl;
/* MAC Interrupt Status register indicates what interrupts are pending.
if (intstatus & AT91_EMAC_RCOM) /* Receive complete */
at91ether_rx(dev);
- if (intstatus & AT91_EMAC_TCOM) { /* Transmit complete */
+ if (intstatus & AT91_EMAC_TCOM) { /* Transmit complete */
/* The TCOM bit is set even if the transmission failed. */
if (intstatus & (AT91_EMAC_TUND | AT91_EMAC_RTRY))
lp->stats.tx_errors += 1;
return IRQ_HANDLED;
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void at91ether_poll_controller(struct net_device *dev)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ at91ether_interrupt(dev->irq, dev);
+ local_irq_restore(flags);
+}
+#endif
+
/*
* Initialize the ethernet interface
*/
-static int __init at91ether_setup(unsigned long phy_type, unsigned short phy_address, struct platform_device *pdev)
+static int __init at91ether_setup(unsigned long phy_type, unsigned short phy_address,
+ struct platform_device *pdev, struct clk *ether_clk)
{
struct at91_eth_data *board_data = pdev->dev.platform_data;
struct net_device *dev;
unsigned int val;
int res;
- if (at91_dev) /* already initialized */
- return 0;
-
dev = alloc_etherdev(sizeof(struct at91_private));
if (!dev)
return -ENOMEM;
dev->base_addr = AT91_VA_BASE_EMAC;
- dev->irq = AT91_ID_EMAC;
+ dev->irq = AT91RM9200_ID_EMAC;
SET_MODULE_OWNER(dev);
/* Install the interrupt handler */
}
/* Allocate memory for DMA Receive descriptors */
- lp = (struct at91_private *)dev->priv;
+ lp = netdev_priv(dev);
lp->dlist = (struct recv_desc_bufs *) dma_alloc_coherent(NULL, sizeof(struct recv_desc_bufs), (dma_addr_t *) &lp->dlist_phys, GFP_KERNEL);
if (lp->dlist == NULL) {
free_irq(dev->irq, dev);
return -ENOMEM;
}
lp->board_data = *board_data;
+ lp->ether_clk = ether_clk;
platform_set_drvdata(pdev, dev);
spin_lock_init(&lp->lock);
dev->set_multicast_list = at91ether_set_rx_mode;
dev->set_mac_address = set_mac_address;
dev->ethtool_ops = &at91ether_ethtool_ops;
+ dev->do_ioctl = at91ether_ioctl;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = at91ether_poll_controller;
+#endif
SET_NETDEV_DEV(dev, &pdev->dev);
lp->mii.dev = dev; /* Support for ethtool */
lp->mii.mdio_read = mdio_read;
lp->mii.mdio_write = mdio_write;
+ lp->mii.phy_id = phy_address;
+ lp->mii.phy_id_mask = 0x1f;
+ lp->mii.reg_num_mask = 0x1f;
lp->phy_type = phy_type; /* Type of PHY connected */
lp->phy_address = phy_address; /* MDI address of PHY */
dma_free_coherent(NULL, sizeof(struct recv_desc_bufs), lp->dlist, (dma_addr_t)lp->dlist_phys);
return res;
}
- at91_dev = dev;
/* Determine current link speed */
spin_lock_irq(&lp->lock);
enable_mdi();
- update_linkspeed(dev);
+ update_linkspeed(dev, 0);
disable_mdi();
spin_unlock_irq(&lp->lock);
netif_carrier_off(dev); /* will be enabled in open() */
+ /* If board has no PHY IRQ, use a timer to poll the PHY */
+ if (!lp->board_data.phy_irq_pin) {
+ init_timer(&lp->check_timer);
+ lp->check_timer.data = (unsigned long)dev;
+ lp->check_timer.function = at91ether_check_link;
+ }
+
/* Display ethernet banner */
printk(KERN_INFO "%s: AT91 ethernet at 0x%08x int=%d %s%s (%02x:%02x:%02x:%02x:%02x:%02x)\n",
dev->name, (uint) dev->base_addr, dev->irq,
dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
if ((phy_type == MII_DM9161_ID) || (lp->phy_type == MII_DM9161A_ID))
- printk(KERN_INFO "%s: Davicom 9196 PHY %s\n", dev->name, (lp->phy_media == PORT_FIBRE) ? "(Fiber)" : "(Copper)");
+ printk(KERN_INFO "%s: Davicom 9161 PHY %s\n", dev->name, (lp->phy_media == PORT_FIBRE) ? "(Fiber)" : "(Copper)");
else if (phy_type == MII_LXT971A_ID)
printk(KERN_INFO "%s: Intel LXT971A PHY\n", dev->name);
else if (phy_type == MII_RTL8201_ID)
int detected = -1;
unsigned long phy_id;
unsigned short phy_address = 0;
+ struct clk *ether_clk;
ether_clk = clk_get(&pdev->dev, "ether_clk");
- if (!ether_clk) {
+ if (IS_ERR(ether_clk)) {
printk(KERN_ERR "at91_ether: no clock defined\n");
return -ENODEV;
}
case MII_DP83847_ID: /* National Semiconductor DP83847: */
case MII_AC101L_ID: /* Altima AC101L: PHY_ID1 = 0x22, PHY_ID2 = 0x5520 */
case MII_KS8721_ID: /* Micrel KS8721: PHY_ID1 = 0x22, PHY_ID2 = 0x1610 */
- detected = at91ether_setup(phy_id, phy_address, pdev);
+ detected = at91ether_setup(phy_id, phy_address, pdev, ether_clk);
break;
}
static int __devexit at91ether_remove(struct platform_device *pdev)
{
- struct at91_private *lp = (struct at91_private *) at91_dev->priv;
+ struct net_device *dev = platform_get_drvdata(pdev);
+ struct at91_private *lp = netdev_priv(dev);
- unregister_netdev(at91_dev);
- free_irq(at91_dev->irq, at91_dev);
+ unregister_netdev(dev);
+ free_irq(dev->irq, dev);
dma_free_coherent(NULL, sizeof(struct recv_desc_bufs), lp->dlist, (dma_addr_t)lp->dlist_phys);
- clk_put(ether_clk);
+ clk_put(lp->ether_clk);
- free_netdev(at91_dev);
- at91_dev = NULL;
+ platform_set_drvdata(pdev, NULL);
+ free_netdev(dev);
return 0;
}
+#ifdef CONFIG_PM
+
+static int at91ether_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+ struct net_device *net_dev = platform_get_drvdata(pdev);
+ struct at91_private *lp = netdev_priv(net_dev);
+ int phy_irq = lp->board_data.phy_irq_pin;
+
+ if (netif_running(net_dev)) {
+ if (phy_irq)
+ disable_irq(phy_irq);
+
+ netif_stop_queue(net_dev);
+ netif_device_detach(net_dev);
+
+ clk_disable(lp->ether_clk);
+ }
+ return 0;
+}
+
+static int at91ether_resume(struct platform_device *pdev)
+{
+ struct net_device *net_dev = platform_get_drvdata(pdev);
+ struct at91_private *lp = netdev_priv(net_dev);
+ int phy_irq = lp->board_data.phy_irq_pin;
+
+ if (netif_running(net_dev)) {
+ clk_enable(lp->ether_clk);
+
+ netif_device_attach(net_dev);
+ netif_start_queue(net_dev);
+
+ if (phy_irq)
+ enable_irq(phy_irq);
+ }
+ return 0;
+}
+
+#else
+#define at91ether_suspend NULL
+#define at91ether_resume NULL
+#endif
+
static struct platform_driver at91ether_driver = {
.probe = at91ether_probe,
.remove = __devexit_p(at91ether_remove),
- /* FIXME: support suspend and resume */
+ .suspend = at91ether_suspend,
+ .resume = at91ether_resume,
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
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