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/* ne2k-pci.c: A NE2000 clone on PCI bus driver for Linux. */
/*
A Linux device driver for PCI NE2000 clones.
Authors and other copyright holders:
1992-2000 by Donald Becker, NE2000 core and various modifications.
1995-1998 by Paul Gortmaker, core modifications and PCI support.
Copyright 1993 assigned to the United States Government as represented
by the Director, National Security Agency.
This software may be used and distributed according to the terms of
the GNU General Public License (GPL), incorporated herein by reference.
Drivers based on or derived from this code fall under the GPL and must
retain the authorship, copyright and license notice. This file is not
a complete program and may only be used when the entire operating
system is licensed under the GPL.
The author may be reached as becker@scyld.com, or C/O
Scyld Computing Corporation
410 Severn Ave., Suite 210
Annapolis MD 21403
Issues remaining:
People are making PCI ne2000 clones! Oh the horror, the horror...
Limited full-duplex support.
*/
#define DRV_NAME "ne2k-pci"
#define DRV_VERSION "1.03"
#define DRV_RELDATE "9/22/2003"
/* The user-configurable values.
These may be modified when a driver module is loaded.*/
static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */
#define MAX_UNITS 8 /* More are supported, limit only on options */
/* Used to pass the full-duplex flag, etc. */
static int full_duplex[MAX_UNITS];
static int options[MAX_UNITS];
/* Force a non std. amount of memory. Units are 256 byte pages. */
/* #define PACKETBUF_MEMSIZE 0x40 */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>
#include "8390.h"
/* These identify the driver base version and may not be removed. */
static char version[] __devinitdata =
KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " D. Becker/P. Gortmaker\n";
#if defined(__powerpc__)
#define inl_le(addr) le32_to_cpu(inl(addr))
#define inw_le(addr) le16_to_cpu(inw(addr))
#endif
#define PFX DRV_NAME ": "
MODULE_AUTHOR("Donald Becker / Paul Gortmaker");
MODULE_DESCRIPTION("PCI NE2000 clone driver");
MODULE_LICENSE("GPL");
module_param(debug, int, 0);
module_param_array(options, int, NULL, 0);
module_param_array(full_duplex, int, NULL, 0);
MODULE_PARM_DESC(debug, "debug level (1-2)");
MODULE_PARM_DESC(options, "Bit 5: full duplex");
MODULE_PARM_DESC(full_duplex, "full duplex setting(s) (1)");
/* Some defines that people can play with if so inclined. */
/* Use 32 bit data-movement operations instead of 16 bit. */
#define USE_LONGIO
/* Do we implement the read before write bugfix ? */
/* #define NE_RW_BUGFIX */
/* Flags. We rename an existing ei_status field to store flags! */
/* Thus only the low 8 bits are usable for non-init-time flags. */
#define ne2k_flags reg0
enum {
ONLY_16BIT_IO=8, ONLY_32BIT_IO=4, /* Chip can do only 16/32-bit xfers. */
FORCE_FDX=0x20, /* User override. */
REALTEK_FDX=0x40, HOLTEK_FDX=0x80,
STOP_PG_0x60=0x100,
};
enum ne2k_pci_chipsets {
CH_RealTek_RTL_8029 = 0,
CH_Winbond_89C940,
CH_Compex_RL2000,
CH_KTI_ET32P2,
CH_NetVin_NV5000SC,
CH_Via_86C926,
CH_SureCom_NE34,
CH_Winbond_W89C940F,
CH_Holtek_HT80232,
CH_Holtek_HT80229,
CH_Winbond_89C940_8c4a,
};
static struct {
char *name;
int flags;
} pci_clone_list[] __devinitdata = {
{"RealTek RTL-8029", REALTEK_FDX},
{"Winbond 89C940", 0},
{"Compex RL2000", 0},
{"KTI ET32P2", 0},
{"NetVin NV5000SC", 0},
{"Via 86C926", ONLY_16BIT_IO},
{"SureCom NE34", 0},
{"Winbond W89C940F", 0},
{"Holtek HT80232", ONLY_16BIT_IO | HOLTEK_FDX},
{"Holtek HT80229", ONLY_32BIT_IO | HOLTEK_FDX | STOP_PG_0x60 },
{"Winbond W89C940(misprogrammed)", 0},
{NULL,}
};
static struct pci_device_id ne2k_pci_tbl[] = {
{ 0x10ec, 0x8029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RealTek_RTL_8029 },
{ 0x1050, 0x0940, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940 },
{ 0x11f6, 0x1401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Compex_RL2000 },
{ 0x8e2e, 0x3000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_KTI_ET32P2 },
{ 0x4a14, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_NetVin_NV5000SC },
{ 0x1106, 0x0926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Via_86C926 },
{ 0x10bd, 0x0e34, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_SureCom_NE34 },
{ 0x1050, 0x5a5a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_W89C940F },
{ 0x12c3, 0x0058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80232 },
{ 0x12c3, 0x5598, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80229 },
{ 0x8c4a, 0x1980, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940_8c4a },
{ 0, }
};
MODULE_DEVICE_TABLE(pci, ne2k_pci_tbl);
/* ---- No user-serviceable parts below ---- */
#define NE_BASE (dev->base_addr)
#define NE_CMD 0x00
#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */
#define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */
#define NE_IO_EXTENT 0x20
#define NESM_START_PG 0x40 /* First page of TX buffer */
#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */
static int ne2k_pci_open(struct net_device *dev);
static int ne2k_pci_close(struct net_device *dev);
static void ne2k_pci_reset_8390(struct net_device *dev);
static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
int ring_page);
static void ne2k_pci_block_input(struct net_device *dev, int count,
struct sk_buff *skb, int ring_offset);
static void ne2k_pci_block_output(struct net_device *dev, const int count,
const unsigned char *buf, const int start_page);
static const struct ethtool_ops ne2k_pci_ethtool_ops;
/* There is no room in the standard 8390 structure for extra info we need,
so we build a meta/outer-wrapper structure.. */
struct ne2k_pci_card {
struct net_device *dev;
struct pci_dev *pci_dev;
};
/*
NEx000-clone boards have a Station Address (SA) PROM (SAPROM) in the packet
buffer memory space. By-the-spec NE2000 clones have 0x57,0x57 in bytes
0x0e,0x0f of the SAPROM, while other supposed NE2000 clones must be
detected by their SA prefix.
Reading the SAPROM from a word-wide card with the 8390 set in byte-wide
mode results in doubled values, which can be detected and compensated for.
The probe is also responsible for initializing the card and filling
in the 'dev' and 'ei_status' structures.
*/
static const struct net_device_ops ne2k_netdev_ops = {
.ndo_open = ne2k_pci_open,
.ndo_stop = ne2k_pci_close,
.ndo_start_xmit = ei_start_xmit,
.ndo_tx_timeout = ei_tx_timeout,
.ndo_get_stats = ei_get_stats,
.ndo_set_multicast_list = ei_set_multicast_list,
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = eth_change_mtu,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = ei_poll,
#endif
};
static int __devinit ne2k_pci_init_one (struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct net_device *dev;
int i;
unsigned char SA_prom[32];
int start_page, stop_page;
int irq, reg0, chip_idx = ent->driver_data;
static unsigned int fnd_cnt;
long ioaddr;
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