mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 20:23:57 +08:00
0b1140782a
This patch makes the needlessly global hplance_{init,cleanup}_module()
static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
237 lines
6.9 KiB
C
237 lines
6.9 KiB
C
/* hplance.c : the Linux/hp300/lance ethernet driver
|
|
*
|
|
* Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
|
|
* Based on the Sun Lance driver and the NetBSD HP Lance driver
|
|
* Uses the generic 7990.c LANCE code.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/string.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/init.h>
|
|
#include <linux/errno.h>
|
|
/* Used for the temporal inet entries and routing */
|
|
#include <linux/socket.h>
|
|
#include <linux/route.h>
|
|
#include <linux/dio.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/skbuff.h>
|
|
|
|
#include <asm/system.h>
|
|
#include <asm/io.h>
|
|
#include <asm/pgtable.h>
|
|
|
|
#include "hplance.h"
|
|
|
|
/* We have 16834 bytes of RAM for the init block and buffers. This places
|
|
* an upper limit on the number of buffers we can use. NetBSD uses 8 Rx
|
|
* buffers and 2 Tx buffers.
|
|
*/
|
|
#define LANCE_LOG_TX_BUFFERS 1
|
|
#define LANCE_LOG_RX_BUFFERS 3
|
|
|
|
#include "7990.h" /* use generic LANCE code */
|
|
|
|
/* Our private data structure */
|
|
struct hplance_private {
|
|
struct lance_private lance;
|
|
};
|
|
|
|
/* function prototypes... This is easy because all the grot is in the
|
|
* generic LANCE support. All we have to support is probing for boards,
|
|
* plus board-specific init, open and close actions.
|
|
* Oh, and we need to tell the generic code how to read and write LANCE registers...
|
|
*/
|
|
static int __devinit hplance_init_one(struct dio_dev *d,
|
|
const struct dio_device_id *ent);
|
|
static void __devinit hplance_init(struct net_device *dev,
|
|
struct dio_dev *d);
|
|
static void __devexit hplance_remove_one(struct dio_dev *d);
|
|
static void hplance_writerap(void *priv, unsigned short value);
|
|
static void hplance_writerdp(void *priv, unsigned short value);
|
|
static unsigned short hplance_readrdp(void *priv);
|
|
static int hplance_open(struct net_device *dev);
|
|
static int hplance_close(struct net_device *dev);
|
|
|
|
static struct dio_device_id hplance_dio_tbl[] = {
|
|
{ DIO_ID_LAN },
|
|
{ 0 }
|
|
};
|
|
|
|
static struct dio_driver hplance_driver = {
|
|
.name = "hplance",
|
|
.id_table = hplance_dio_tbl,
|
|
.probe = hplance_init_one,
|
|
.remove = __devexit_p(hplance_remove_one),
|
|
};
|
|
|
|
/* Find all the HP Lance boards and initialise them... */
|
|
static int __devinit hplance_init_one(struct dio_dev *d,
|
|
const struct dio_device_id *ent)
|
|
{
|
|
struct net_device *dev;
|
|
int err = -ENOMEM;
|
|
int i;
|
|
|
|
dev = alloc_etherdev(sizeof(struct hplance_private));
|
|
if (!dev)
|
|
goto out;
|
|
|
|
err = -EBUSY;
|
|
if (!request_mem_region(dio_resource_start(d),
|
|
dio_resource_len(d), d->name))
|
|
goto out_free_netdev;
|
|
|
|
hplance_init(dev, d);
|
|
err = register_netdev(dev);
|
|
if (err)
|
|
goto out_release_mem_region;
|
|
|
|
dio_set_drvdata(d, dev);
|
|
|
|
printk(KERN_INFO "%s: %s; select code %d, addr %2.2x", dev->name, d->name, d->scode, dev->dev_addr[0]);
|
|
|
|
for (i=1; i<6; i++) {
|
|
printk(":%2.2x", dev->dev_addr[i]);
|
|
}
|
|
|
|
printk(", irq %d\n", d->ipl);
|
|
|
|
return 0;
|
|
|
|
out_release_mem_region:
|
|
release_mem_region(dio_resource_start(d), dio_resource_len(d));
|
|
out_free_netdev:
|
|
free_netdev(dev);
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
static void __devexit hplance_remove_one(struct dio_dev *d)
|
|
{
|
|
struct net_device *dev = dio_get_drvdata(d);
|
|
|
|
unregister_netdev(dev);
|
|
release_mem_region(dio_resource_start(d), dio_resource_len(d));
|
|
free_netdev(dev);
|
|
}
|
|
|
|
/* Initialise a single lance board at the given DIO device */
|
|
static void __init hplance_init(struct net_device *dev, struct dio_dev *d)
|
|
{
|
|
unsigned long va = (d->resource.start + DIO_VIRADDRBASE);
|
|
struct hplance_private *lp;
|
|
int i;
|
|
|
|
/* reset the board */
|
|
out_8(va+DIO_IDOFF, 0xff);
|
|
udelay(100); /* ariba! ariba! udelay! udelay! */
|
|
|
|
/* Fill the dev fields */
|
|
dev->base_addr = va;
|
|
dev->open = &hplance_open;
|
|
dev->stop = &hplance_close;
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
dev->poll_controller = lance_poll;
|
|
#endif
|
|
dev->hard_start_xmit = &lance_start_xmit;
|
|
dev->set_multicast_list = &lance_set_multicast;
|
|
dev->dma = 0;
|
|
|
|
for (i=0; i<6; i++) {
|
|
/* The NVRAM holds our ethernet address, one nibble per byte,
|
|
* at bytes NVRAMOFF+1,3,5,7,9...
|
|
*/
|
|
dev->dev_addr[i] = ((in_8(va + HPLANCE_NVRAMOFF + i*4 + 1) & 0xF) << 4)
|
|
| (in_8(va + HPLANCE_NVRAMOFF + i*4 + 3) & 0xF);
|
|
}
|
|
|
|
lp = netdev_priv(dev);
|
|
lp->lance.name = (char*)d->name; /* discards const, shut up gcc */
|
|
lp->lance.base = va;
|
|
lp->lance.init_block = (struct lance_init_block *)(va + HPLANCE_MEMOFF); /* CPU addr */
|
|
lp->lance.lance_init_block = NULL; /* LANCE addr of same RAM */
|
|
lp->lance.busmaster_regval = LE_C3_BSWP; /* we're bigendian */
|
|
lp->lance.irq = d->ipl;
|
|
lp->lance.writerap = hplance_writerap;
|
|
lp->lance.writerdp = hplance_writerdp;
|
|
lp->lance.readrdp = hplance_readrdp;
|
|
lp->lance.lance_log_rx_bufs = LANCE_LOG_RX_BUFFERS;
|
|
lp->lance.lance_log_tx_bufs = LANCE_LOG_TX_BUFFERS;
|
|
lp->lance.rx_ring_mod_mask = RX_RING_MOD_MASK;
|
|
lp->lance.tx_ring_mod_mask = TX_RING_MOD_MASK;
|
|
}
|
|
|
|
/* This is disgusting. We have to check the DIO status register for ack every
|
|
* time we read or write the LANCE registers.
|
|
*/
|
|
static void hplance_writerap(void *priv, unsigned short value)
|
|
{
|
|
struct lance_private *lp = (struct lance_private *)priv;
|
|
do {
|
|
out_be16(lp->base + HPLANCE_REGOFF + LANCE_RAP, value);
|
|
} while ((in_8(lp->base + HPLANCE_STATUS) & LE_ACK) == 0);
|
|
}
|
|
|
|
static void hplance_writerdp(void *priv, unsigned short value)
|
|
{
|
|
struct lance_private *lp = (struct lance_private *)priv;
|
|
do {
|
|
out_be16(lp->base + HPLANCE_REGOFF + LANCE_RDP, value);
|
|
} while ((in_8(lp->base + HPLANCE_STATUS) & LE_ACK) == 0);
|
|
}
|
|
|
|
static unsigned short hplance_readrdp(void *priv)
|
|
{
|
|
struct lance_private *lp = (struct lance_private *)priv;
|
|
__u16 value;
|
|
do {
|
|
value = in_be16(lp->base + HPLANCE_REGOFF + LANCE_RDP);
|
|
} while ((in_8(lp->base + HPLANCE_STATUS) & LE_ACK) == 0);
|
|
return value;
|
|
}
|
|
|
|
static int hplance_open(struct net_device *dev)
|
|
{
|
|
int status;
|
|
struct lance_private *lp = netdev_priv(dev);
|
|
|
|
status = lance_open(dev); /* call generic lance open code */
|
|
if (status)
|
|
return status;
|
|
/* enable interrupts at board level. */
|
|
out_8(lp->base + HPLANCE_STATUS, LE_IE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hplance_close(struct net_device *dev)
|
|
{
|
|
struct lance_private *lp = netdev_priv(dev);
|
|
|
|
out_8(lp->base + HPLANCE_STATUS, 0); /* disable interrupts at boardlevel */
|
|
lance_close(dev);
|
|
return 0;
|
|
}
|
|
|
|
static int __init hplance_init_module(void)
|
|
{
|
|
return dio_register_driver(&hplance_driver);
|
|
}
|
|
|
|
static void __exit hplance_cleanup_module(void)
|
|
{
|
|
dio_unregister_driver(&hplance_driver);
|
|
}
|
|
|
|
module_init(hplance_init_module);
|
|
module_exit(hplance_cleanup_module);
|
|
|
|
MODULE_LICENSE("GPL");
|