/*
dm9000x.c: Version 1.25 04/28/2004
A Davicom DM9000 ISA NIC fast Ethernet driver for Linux.
Copyright (C) 1997 Sten Wang
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
(C)Copyright 1997-1998 DAVICOM Semiconductor,Inc. All Rights Reserved.
V0.11 06/20/2001 REG_0A bit3=1, default enable BP with DA match
06/22/2001 Support DM9801 progrmming
E3: R25 = ((R24 + NF) & 0x00ff) | 0xf000
E4: R25 = ((R24 + NF) & 0x00ff) | 0xc200
R17 = (R17 & 0xfff0) | NF + 3
E5: R25 = ((R24 + NF - 3) & 0x00ff) | 0xc200
R17 = (R17 & 0xfff0) | NF
v1.00 modify by simon 2001.9.5
change for kernel 2.4.x
v1.1 11/09/2001 fix force mode bug
v1.2 03/18/2003 Weilun Huang <weilun_huang@davicom.com.tw>:
Added tx/rx 32 bit mode.
Cleaned up for kernel merge.
v1.21 08/26/2003 Fixed phy reset.
v1.22 09/09/2003 Fixed power-on reset.
09/30/2003 Spenser Tsai
Fixed 32-bit mode bug (Excessive Collision and Late Collision)
v1.23 11/05/2003 Added Auto-MDIX function
v1.24 01/15/2004 Modify Full-Duplex mode
v1.25 04/28/2004 Default Flow control function
v1.26 06/09/2004 Performance raising & reducing amount of interrupt
v1.27 12/07/2012 BY yangjia
*/
//modified by ucdragon_fla,the major to do is configureing cs and interrupt base certian board!
#if defined(MODVERSIONS)
#include <linux/modversions.h>
#endif
#include <linux/config.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/version.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/spinlock.h>
#include <linux/skbuff.h>
#include <linux/ioport.h>
#include <linux/crc32.h>
#include <linux/delay.h>
#include <asm/dma.h>
#include <asm/irq.h>
#include <asm/io.h>
//#include <asm-arm/arch/irqs.h> //--
/* Board/System/Debug information/definition ---------------- */
#define DM9000_ID 0x90000A46
#define DM9000_NCR 0x00
#define DM9000_NSR 0x01
#define DM9000_REG05 0x30 /* SKIP_CRC/SKIP_LONG */
#define DM9000_REG08 0x37
#define DM9000_REG09 0x38
#define DM9000_REG0A 0x29 /* Flow Control Enable */
#define DM9000_GPCR 0x1e /* General purpose control register */
#define DM9000_GPR 0x1f /* General purpose register */
#define DM9000_REGFF 0x83 /* IMR */
#define DM9000_PHY 0x40 /* PHY address 0x01 */
#define DM9000_PKT_MAX 1536 /* Received packet max size */
#define DM9000_PKT_RDY 0x01 /* Packet ready to receive */
//..............................................
#define DM9000_MIN_IO 0x00 //
#define DM9000_MAX_IO 0x70
#define DM9000_IRQ AT91C_ID_IRQ5 //AT91ARM9200 中断30
#define DM9000_BASEADDR 0x70000300
#define DM9000_INT_MII 0x00
#define DM9000_EXT_MII 0x80
#define DM9000_VID_L 0x28
#define DM9000_VID_H 0x29
#define DM9000_PID_L 0x2A
#define DM9000_PID_H 0x2B
#define DM9801_NOISE_FLOOR 0x08
#define DM9802_NOISE_FLOOR 0x05
#define DMFE_SUCC 0
#define MAX_PACKET_SIZE 1514
#define DMFE_MAX_MULTICAST 14
#define DM9000_RX_INTR 0x01
#define DM9000_TX_INTR 0x02
#define DM9000_OVERFLOW_INTR 0x04
#define DM9000_DWORD_MODE 1
#define DM9000_BYTE_MODE 2
#define DM9000_WORD_MODE 0
#define TRUE 1
#define FALSE 0
#define DMFE_TIMER_WUT jiffies+(HZ*2) /* timer wakeup time : 2 second */
#define DMFE_TX_TIMEOUT (HZ*2) /* tx packet time-out time 1.5 s" */
#if defined(AUTOMDIX)
#define DMFE_TIMER_MDIX jiffies+(HZ*1) /* timer wakeup time : 1 second */
#endif
#if defined(DM9000_DEBUG)
#define DMFE_DBUG(dbug_now, msg, vaule)\
if (dmfe_debug||dbug_now) printk(KERN_ERR "dmfe: %s %x\n", msg, vaule)
#else
#define DMFE_DBUG(dbug_now, msg, vaule)\
if (dbug_now) printk(KERN_ERR "dmfe: %s %x\n", msg, vaule)
#endif
enum DM9000_PHY_mode {
DM9000_10MHD = 0,
DM9000_100MHD = 1,
DM9000_10MFD = 4,
DM9000_100MFD = 5,
DM9000_AUTO = 8,
DM9000_1M_HPNA = 0x10
};
enum DM9000_NIC_TYPE {
FASTETHER_NIC = 0,
HOMERUN_NIC = 1,
LONGRUN_NIC = 2
};
// Active operation mode - Spenser 10/6
enum DM9000_OP_mode {
OP_10MHD = 1,
OP_10MFD = 2,
OP_100MHD = 4,
OP_100MFD = 8
};
enum DM9000_SF_mode {
VLAN_Enable = 1,
FlowControl = 2,
TxPausePacket = 4
};
/* Structure/enum declaration ------------------------------- */
typedef struct board_info {
u32 runt_length_counter; /* counter: RX length < 64byte */
u32 long_length_counter; /* counter: RX length > 1514byte */
u32 reset_counter; /* counter: RESET */
u32 reset_tx_timeout; /* RESET caused by TX Timeout */
u32 reset_rx_status; /* RESET caused by RX Statsus wrong */
u32 ioaddr; /* Register I/O base address */
u32 io_data; /* Data I/O address */
u16 irq; /* IRQ */
u16 tx_pkt_cnt;
u16 sent_pkt_len, queue_pkt_len;
u16 queue_start_addr;
u16 dbug_cnt;
u16 Preg0;
u16 Preg4;
u8 reg0, reg5, reg8, reg9, rega; /* registers saved */
u8 op_mode; /* PHY operation mode */
// u8 active_op_mode; // Real PHY operation mode -Spenser 10/6
u8 io_mode; /* 0:word, 2:byte */
u8 phy_addr;
u8 link_failed; /* Ever link failed */
u8 nsr; /* Network Status Register */
u8 link_status; /* Detect link state */
u8 mdix; /* MDIX */
u8 device_wait_reset; /* device state */
u8 nic_type; /* NIC type */
u8 ncr;
struct timer_list timer, mdix_timer;
struct net_device_stats stats;
// unsigned char srom[128];
spinlock_t lock;
} board_info_t;
/* Global variable declaration ----------------------------- */
#ifdef DM9000_DEBUG
static int dmfe_debug = 1;
#endif // DM9000_DEBUG
static struct net_device *dmfe_dev = NULL;
/* For module input parameter */
#ifdef MODULE
static int debug = 0;
static int mode = DM9000_AUTO;
#endif//MODULE
static int media_mode = DM9000_AUTO;
static u8 nfloor = 0;
static u8 reg5 = DM9000_REG05;
static u8 reg8 = DM9000_REG08;
static u8 reg9 = DM9000_REG09;
static u8 rega = DM9000_REG0A;
//static u8 irqline = 3;
static u32 tintrflag = 0;
static u32 rxintrflag = 0;
/* function declaration ------------------------------------- */
int dmfe_probe(struct net_device *);
static int dmfe_open(struct net_device *);
static int dmfe_start_xmit(struct sk_buff *, struct net_device *);
static void dmfe_tx_done(unsigned long);
static void dmfe_packet_receive(unsigned long);
static int dmfe_stop(struct net_device *);
static struct net_device_stats *dmfe_get_stats(struct net_device *);
static int dmfe_do_ioctl(struct net_device *, struct ifreq *, int);
static void dmfe_interrupt(int, void *, struct pt_regs *);
static void dmfe_timer(unsigned long);
static void dmfe_init_dm9000(struct net_device *);
//static void dmfe_reset_dm9000(struct net_device *);
static unsigned long cal_CRC(unsigned char *, unsigned int, u8);
static u8 ior(board_info_t *, int);
static void iow(board_info_t *, int, u8);
static u16 phy_read(board_info_t *, int);
static void phy_write(board_info_t *, int, u16);
//static u16 read_srom_word(board_info_t *, int);
static void dm9000_hash_table(struct net_device *);
static void dm9000_set_initialize_exterior_bus();
#if defined(AUTOMDIX)
static void dmfe_mdix_timer(unsigned long);
#endif
#if 0 /* comment by mhfan */
DECLARE_TASKLET(dmfe_rx_tasklet, dmfe_packet_receive, 0);
DECLARE_TASKLET(dmfe_tx_tasklet, dmfe_tx_done, 0);
#endif /* comment by mhfan */
/***************************自定义的函数********************/
/***************************by yangjia********************/
#define SMC_CS6_ADDR 0xFFFFFF88
static void dm9000_set_i
