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Date: Wed, 25 Apr 2007 01:54:50 +0900 (JST)
From: Atsushi Nemoto <anemo@....ocn.ne.jp>
To: linux-mips@...ux-mips.org
Cc: netdev@...r.kernel.org, jeff@...zik.org, ralf@...ux-mips.org,
sshtylyov@...mvista.com, akpm@...ux-foundation.org
Subject: [PATCH 1/3] ne: Add platform_driver
Currently ne.c has some codes to support RBTX49XX boards but it is not
complete. Instead of adding more hacks to fix it, this patch add an
generic platform_driver interface to the driver and let RBTX49XX use
it. This is a first step.
* Add platform_driver interface to ne driver.
(Existing legacy ports did not covered by this ne_driver for now)
* Make ioaddr 'unsigned long'.
* Move a printk down to show dev->name assigned in register_netdev.
Signed-off-by: Atsushi Nemoto <anemo@....ocn.ne.jp>
---
drivers/net/ne.c | 103 +++++++++++++++++++++++++++++++++++++++++++++++++----
1 files changed, 95 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ne.c b/drivers/net/ne.c
index a5c4199..b8a181f 100644
--- a/drivers/net/ne.c
+++ b/drivers/net/ne.c
@@ -51,6 +51,7 @@ static const char version2[] =
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/jiffies.h>
+#include <linux/platform_device.h>
#include <asm/system.h>
#include <asm/io.h>
@@ -146,7 +147,7 @@ bad_clone_list[] __initdata = {
# define DCR_VAL 0x49
#endif
-static int ne_probe1(struct net_device *dev, int ioaddr);
+static int ne_probe1(struct net_device *dev, unsigned long ioaddr);
static int ne_probe_isapnp(struct net_device *dev);
static int ne_open(struct net_device *dev);
@@ -184,7 +185,7 @@ static void ne_block_output(struct net_device *dev, const int count,
static int __init do_ne_probe(struct net_device *dev)
{
- unsigned int base_addr = dev->base_addr;
+ unsigned long base_addr = dev->base_addr;
#ifndef MODULE
int orig_irq = dev->irq;
#endif
@@ -285,7 +286,7 @@ static int __init ne_probe_isapnp(struct net_device *dev)
return -ENODEV;
}
-static int __init ne_probe1(struct net_device *dev, int ioaddr)
+static int __init ne_probe1(struct net_device *dev, unsigned long ioaddr)
{
int i;
unsigned char SA_prom[32];
@@ -324,7 +325,7 @@ static int __init ne_probe1(struct net_device *dev, int ioaddr)
if (ei_debug && version_printed++ == 0)
printk(KERN_INFO "%s" KERN_INFO "%s", version1, version2);
- printk(KERN_INFO "NE*000 ethercard probe at %#3x:", ioaddr);
+ printk(KERN_INFO "NE*000 ethercard probe at %#3lx:", ioaddr);
/* A user with a poor card that fails to ack the reset, or that
does not have a valid 0x57,0x57 signature can still use this
@@ -516,8 +517,7 @@ static int __init ne_probe1(struct net_device *dev, int ioaddr)
}
#endif
- printk("\n%s: %s found at %#x, using IRQ %d.\n",
- dev->name, name, ioaddr, dev->irq);
+ printk("\n");
ei_status.name = name;
ei_status.tx_start_page = start_page;
@@ -547,6 +547,8 @@ static int __init ne_probe1(struct net_device *dev, int ioaddr)
ret = register_netdev(dev);
if (ret)
goto out_irq;
+ printk(KERN_INFO "%s: %s found at %#lx, using IRQ %d.\n",
+ dev->name, name, ioaddr, dev->irq);
return 0;
out_irq:
@@ -807,6 +809,86 @@ retry:
return;
}
+static int __init ne_drv_probe(struct platform_device *pdev)
+{
+ struct net_device *dev;
+ struct resource *res;
+ int err, irq;
+
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ irq = platform_get_irq(pdev, 0);
+ if (!res || irq < 0)
+ return -ENODEV;
+
+ dev = alloc_ei_netdev();
+ if (!dev)
+ return -ENOMEM;
+ dev->irq = irq;
+ dev->base_addr = res->start;
+ err = do_ne_probe(dev);
+ if (err) {
+ free_netdev(dev);
+ return err;
+ }
+ platform_set_drvdata(pdev, dev);
+ return 0;
+}
+
+static int __exit ne_drv_remove(struct platform_device *pdev)
+{
+ struct net_device *dev = platform_get_drvdata(pdev);
+
+ unregister_netdev(dev);
+ free_irq(dev->irq, dev);
+ release_region(dev->base_addr, NE_IO_EXTENT);
+ free_netdev(dev);
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int ne_drv_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct net_device *dev = platform_get_drvdata(pdev);
+
+ if (netif_running(dev))
+ netif_device_detach(dev);
+ return 0;
+}
+
+static int ne_drv_resume(struct platform_device *pdev)
+{
+ struct net_device *dev = platform_get_drvdata(pdev);
+
+ if (netif_running(dev)) {
+ ne_reset_8390(dev);
+ NS8390_init(dev, 1);
+ netif_device_attach(dev);
+ }
+ return 0;
+}
+#endif
+
+static struct platform_driver ne_driver = {
+ .remove = __exit_p(ne_drv_remove),
+#ifdef CONFIG_PM
+ .suspend = ne_drv_suspend,
+ .resume = ne_drv_resume,
+#endif
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init ne_init(void)
+{
+ return platform_driver_probe(&ne_driver, ne_drv_probe);
+}
+
+static void __exit ne_exit(void)
+{
+ platform_driver_unregister(&ne_driver);
+}
#ifdef MODULE
#define MAX_NE_CARDS 4 /* Max number of NE cards per module */
@@ -832,6 +914,7 @@ ISA device autoprobes on a running machine are not recommended anyway. */
int __init init_module(void)
{
int this_dev, found = 0;
+ int plat_found = !ne_init();
for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) {
struct net_device *dev = alloc_ei_netdev();
@@ -845,7 +928,7 @@ int __init init_module(void)
continue;
}
free_netdev(dev);
- if (found)
+ if (found || plat_found)
break;
if (io[this_dev] != 0)
printk(KERN_WARNING "ne.c: No NE*000 card found at i/o = %#x\n", io[this_dev]);
@@ -853,7 +936,7 @@ int __init init_module(void)
printk(KERN_NOTICE "ne.c: You must supply \"io=0xNNN\" value(s) for ISA cards.\n");
return -ENXIO;
}
- if (found)
+ if (found || plat_found)
return 0;
return -ENODEV;
}
@@ -871,6 +954,7 @@ void __exit cleanup_module(void)
{
int this_dev;
+ ne_exit();
for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) {
struct net_device *dev = dev_ne[this_dev];
if (dev) {
@@ -880,4 +964,7 @@ void __exit cleanup_module(void)
}
}
}
+#else /* MODULE */
+module_init(ne_init);
+module_exit(ne_exit);
#endif /* MODULE */
-
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