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Commit 6502fb5d authored by Zwane Mwaikambo's avatar Zwane Mwaikambo Committed by Linus Torvalds
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Add power management support to 3c509 net driver.

parent af5c1040
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Showing with 189 additions and 73 deletions
drivers/net/3c509.c
View file @ 6502fb5d
......@@ -45,11 +45,13 @@
- Reviewed against 1.18 from scyld.com
v1.18a 17Nov2001 Jeff Garzik <jgarzik@mandrakesoft.com>
- ethtool support
v1.18b 1Mar2002 Zwane Mwaikambo <zwane@commfireservices.com>
- Power Management support
*/
#define DRV_NAME "3c509"
#define DRV_VERSION "1.18a"
#define DRV_RELDATE "17Nov2001"
#define DRV_VERSION "1.18b"
#define DRV_RELDATE "1Mar2002"
/* A few values that may be tweaked. */
......@@ -82,8 +84,9 @@ static int max_interrupt_work = 10;
#include <asm/bitops.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <linux/pm.h>
static char versionA[] __initdata = DRV_NAME ".c:" DRV_VERSION " " DRV_RELDATE "becker@scyld.com\n";
static char versionA[] __initdata = DRV_NAME ".c:" DRV_VERSION " " DRV_RELDATE " becker@scyld.com\n";
static char versionB[] __initdata = "http://www.scyld.com/network/3c509.html\n";
#ifdef EL3_DEBUG
......@@ -116,7 +119,8 @@ enum c509cmd {
FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11,
StatsDisable = 22<<11, StopCoax = 23<<11,};
StatsDisable = 22<<11, StopCoax = 23<<11, PowerUp = 27<<11,
PowerDown = 28<<11, PowerAuto = 29<<11};
enum c509status {
IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004,
......@@ -152,6 +156,9 @@ struct el3_private {
int head, size;
struct sk_buff *queue[SKB_QUEUE_SIZE];
char mca_slot;
#ifdef CONFIG_PM
struct pm_dev *pmdev;
#endif
};
static int id_port __initdata = 0x110; /* Start with 0x110 to avoid new sound cards.*/
static struct net_device *el3_root_dev;
......@@ -168,6 +175,13 @@ static int el3_close(struct net_device *dev);
static void set_multicast_list(struct net_device *dev);
static void el3_tx_timeout (struct net_device *dev);
static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
static void el3_down(struct net_device *dev);
static void el3_up(struct net_device *dev);
#ifdef CONFIG_PM
static int el3_suspend(struct pm_dev *pdev);
static int el3_resume(struct pm_dev *pdev);
static int el3_pm_callback(struct pm_dev *pdev, pm_request_t rqst, void *data);
#endif
#ifdef CONFIG_MCA
struct el3_mca_adapters_struct {
......@@ -219,7 +233,7 @@ static u16 el3_isapnp_phys_addr[8][3];
#endif /* __ISAPNP__ */
static int nopnp;
int __init el3_probe(struct net_device *dev)
int __init el3_probe(struct net_device *dev, int card_idx)
{
struct el3_private *lp;
short lrs_state = 0xff, i;
......@@ -525,6 +539,16 @@ int __init el3_probe(struct net_device *dev)
dev->watchdog_timeo = TX_TIMEOUT;
dev->do_ioctl = netdev_ioctl;
#ifdef CONFIG_PM
/* register power management */
lp->pmdev = pm_register(PM_ISA_DEV, card_idx, el3_pm_callback);
if (lp->pmdev) {
struct pm_dev *p;
p = lp->pmdev;
p->data = (struct net_device *)dev;
}
#endif
/* Fill in the generic fields of the device structure. */
ether_setup(dev);
return 0;
......@@ -581,53 +605,7 @@ el3_open(struct net_device *dev)
printk("%s: Opening, IRQ %d status@%x %4.4x.\n", dev->name,
dev->irq, ioaddr + EL3_STATUS, inw(ioaddr + EL3_STATUS));
/* Activate board: this is probably unnecessary. */
outw(0x0001, ioaddr + 4);
/* Set the IRQ line. */
outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ);
/* Set the station address in window 2 each time opened. */
EL3WINDOW(2);
for (i = 0; i < 6; i++)
outb(dev->dev_addr[i], ioaddr + i);
if (dev->if_port == 3)
/* Start the thinnet transceiver. We should really wait 50ms...*/
outw(StartCoax, ioaddr + EL3_CMD);
else if (dev->if_port == 0) {
/* 10baseT interface, enabled link beat and jabber check. */
EL3WINDOW(4);
outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA);
}
/* Switch to the stats window, and clear all stats by reading. */
outw(StatsDisable, ioaddr + EL3_CMD);
EL3WINDOW(6);
for (i = 0; i < 9; i++)
inb(ioaddr + i);
inw(ioaddr + 10);
inw(ioaddr + 12);
/* Switch to register set 1 for normal use. */
EL3WINDOW(1);
/* Accept b-case and phys addr only. */
outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
netif_start_queue(dev);
outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
/* Allow status bits to be seen. */
outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
/* Ack all pending events, and set active indicator mask. */
outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
ioaddr + EL3_CMD);
outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull,
ioaddr + EL3_CMD);
el3_up(dev);
if (el3_debug > 3)
printk("%s: Opened 3c509 IRQ %d status %4.4x.\n",
......@@ -986,23 +964,7 @@ el3_close(struct net_device *dev)
if (el3_debug > 2)
printk("%s: Shutting down ethercard.\n", dev->name);
netif_stop_queue(dev);
/* Turn off statistics ASAP. We update lp->stats below. */
outw(StatsDisable, ioaddr + EL3_CMD);
/* Disable the receiver and transmitter. */
outw(RxDisable, ioaddr + EL3_CMD);
outw(TxDisable, ioaddr + EL3_CMD);
if (dev->if_port == 3)
/* Turn off thinnet power. Green! */
outw(StopCoax, ioaddr + EL3_CMD);
else if (dev->if_port == 0) {
/* Disable link beat and jabber, if_port may change ere next open(). */
EL3WINDOW(4);
outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA);
}
el3_down(dev);
free_irq(dev->irq, dev);
/* Switching back to window 0 disables the IRQ. */
......@@ -1010,7 +972,6 @@ el3_close(struct net_device *dev)
/* But we explicitly zero the IRQ line select anyway. */
outw(0x0f00, ioaddr + WN0_IRQ);
update_stats(dev);
return 0;
}
......@@ -1092,7 +1053,157 @@ static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
return rc;
}
static void el3_down(struct net_device *dev)
{
int ioaddr = dev->base_addr;
netif_stop_queue(dev);
/* Turn off statistics ASAP. We update lp->stats below. */
outw(StatsDisable, ioaddr + EL3_CMD);
/* Disable the receiver and transmitter. */
outw(RxDisable, ioaddr + EL3_CMD);
outw(TxDisable, ioaddr + EL3_CMD);
if (dev->if_port == 3)
/* Turn off thinnet power. Green! */
outw(StopCoax, ioaddr + EL3_CMD);
else if (dev->if_port == 0) {
/* Disable link beat and jabber, if_port may change ere next open(). */
EL3WINDOW(4);
outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA);
}
outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
update_stats(dev);
}
static void el3_up(struct net_device *dev)
{
int i;
int ioaddr = dev->base_addr;
/* Activating the board required and does no harm otherwise */
outw(0x0001, ioaddr + 4);
/* Set the IRQ line. */
outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ);
/* Set the station address in window 2 each time opened. */
EL3WINDOW(2);
for (i = 0; i < 6; i++)
outb(dev->dev_addr[i], ioaddr + i);
if (dev->if_port == 3)
/* Start the thinnet transceiver. We should really wait 50ms...*/
outw(StartCoax, ioaddr + EL3_CMD);
else if (dev->if_port == 0) {
/* 10baseT interface, enabled link beat and jabber check. */
EL3WINDOW(4);
outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA);
}
/* Switch to the stats window, and clear all stats by reading. */
outw(StatsDisable, ioaddr + EL3_CMD);
EL3WINDOW(6);
for (i = 0; i < 9; i++)
inb(ioaddr + i);
inw(ioaddr + 10);
inw(ioaddr + 12);
/* Switch to register set 1 for normal use. */
EL3WINDOW(1);
/* Accept b-case and phys addr only. */
outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
/* Allow status bits to be seen. */
outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
/* Ack all pending events, and set active indicator mask. */
outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
ioaddr + EL3_CMD);
outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull,
ioaddr + EL3_CMD);
netif_start_queue(dev);
}
/* Power Management support functions */
#ifdef CONFIG_PM
static int el3_suspend(struct pm_dev *pdev)
{
unsigned long flags;
struct net_device *dev;
struct el3_private *lp;
int ioaddr;
if (!pdev && !pdev->data)
return -EINVAL;
dev = (struct net_device *)pdev->data;
lp = (struct el3_private *)dev->priv;
ioaddr = dev->base_addr;
spin_lock_irqsave(&lp->lock, flags);
if (netif_running(dev))
netif_device_detach(dev);
el3_down(dev);
outw(PowerDown, ioaddr + EL3_CMD);
spin_unlock_irqrestore(&lp->lock, flags);
return 0;
}
static int el3_resume(struct pm_dev *pdev)
{
unsigned long flags;
struct net_device *dev;
struct el3_private *lp;
int ioaddr;
if (!pdev && !pdev->data)
return -EINVAL;
dev = (struct net_device *)pdev->data;
lp = (struct el3_private *)dev->priv;
ioaddr = dev->base_addr;
spin_lock_irqsave(&lp->lock, flags);
outw(PowerUp, ioaddr + EL3_CMD);
el3_up(dev);
if (netif_running(dev))
netif_device_attach(dev);
spin_unlock_irqrestore(&lp->lock, flags);
return 0;
}
static int el3_pm_callback(struct pm_dev *pdev, pm_request_t rqst, void *data)
{
switch (rqst) {
case PM_SUSPEND:
return el3_suspend(pdev);
case PM_RESUME:
return el3_resume(pdev);
}
return 0;
}
#endif /* CONFIG_PM */
#ifdef MODULE
/* Parameters that may be passed into the module. */
static int debug = -1;
......@@ -1122,7 +1233,7 @@ init_module(void)
el3_debug = debug;
el3_root_dev = NULL;
while (el3_probe(0) == 0) {
while (el3_probe(0, el3_cards) == 0) {
if (irq[el3_cards] > 1)
el3_root_dev->irq = irq[el3_cards];
if (xcvr[el3_cards] >= 0)
......@@ -1144,7 +1255,12 @@ cleanup_module(void)
#ifdef CONFIG_MCA
if(lp->mca_slot!=-1)
mca_mark_as_unused(lp->mca_slot);
#endif
#endif
#ifdef CONFIG_PM
if (lp->pmdev)
pm_unregister(lp->pmdev);
#endif
next_dev = lp->next_dev;
unregister_netdev(el3_root_dev);
release_region(el3_root_dev->base_addr, EL3_IO_EXTENT);
......
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