/**************************************************************************
*
* tlan.c -- Etherboot device driver for the Texas Instruments ThunderLAN
* Written 2003-2003 by Timothy Legge <tlegge@rogers.com>
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Portions of this code (almost all) based on:
* tlan.c: Linux ThunderLan Driver:
*
* by James Banks
*
* (C) 1997-1998 Caldera, Inc.
* (C) 1998 James Banks
* (C) 1999-2001 Torben Mathiasen
* (C) 2002 Samuel Chessman
*
* REVISION HISTORY:
* ================
* v1.0 07-08-2003 timlegge Initial not quite working version
*
* Indent Style: indent -kr -i8
***************************************************************************/
/*
#include <asm/io.h>
#include <asm/types.h>
#include <linux/netdevice.h>
*/
typedef unsigned char u8;
typedef signed char s8;
typedef unsigned short u16;
typedef signed short s16;
typedef unsigned int u32;
typedef signed int s32;
/*****************************************************************
* TLan Definitions
*
****************************************************************/
#define FALSE 0
#define TRUE 1
#define TLAN_MIN_FRAME_SIZE 64
#define TLAN_MAX_FRAME_SIZE 1600
#define TLAN_NUM_RX_LISTS 4
#define TLAN_NUM_TX_LISTS 2
#define TLAN_IGNORE 0
#define TLAN_RECORD 1
/*
#define TLAN_DBG(lvl, format, args...) if (debug&lvl) printf("TLAN: " format, ##args );
*/
#define TLAN_DEBUG_GNRL 0x0001
#define TLAN_DEBUG_TX 0x0002
#define TLAN_DEBUG_RX 0x0004
#define TLAN_DEBUG_LIST 0x0008
#define TLAN_DEBUG_PROBE 0x0010
#define TX_TIMEOUT (10*HZ) /* We need time for auto-neg */
#define MAX_TLAN_BOARDS 8 /* Max number of boards installed at a time */
/*****************************************************************
* Device Identification Definitions
*
****************************************************************/
#define PCI_DEVICE_ID_NETELLIGENT_10_T2 0xB012
#define PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100 0xB030
#ifndef PCI_DEVICE_ID_OLICOM_OC2183
#define PCI_DEVICE_ID_OLICOM_OC2183 0x0013
#endif
#ifndef PCI_DEVICE_ID_OLICOM_OC2325
#define PCI_DEVICE_ID_OLICOM_OC2325 0x0012
#endif
#ifndef PCI_DEVICE_ID_OLICOM_OC2326
#define PCI_DEVICE_ID_OLICOM_OC2326 0x0014
#endif
typedef struct tlan_adapter_entry {
u16 vendorId;
u16 deviceId;
char *deviceLabel;
u32 flags;
u16 addrOfs;
} TLanAdapterEntry;
#define TLAN_ADAPTER_NONE 0x00000000
#define TLAN_ADAPTER_UNMANAGED_PHY 0x00000001
#define TLAN_ADAPTER_BIT_RATE_PHY 0x00000002
#define TLAN_ADAPTER_USE_INTERN_10 0x00000004
#define TLAN_ADAPTER_ACTIVITY_LED 0x00000008
#define TLAN_SPEED_DEFAULT 0
#define TLAN_SPEED_10 10
#define TLAN_SPEED_100 100
#define TLAN_DUPLEX_DEFAULT 0
#define TLAN_DUPLEX_HALF 1
#define TLAN_DUPLEX_FULL 2
/*****************************************************************
* EISA Definitions
*
****************************************************************/
#define EISA_ID 0xc80 /* EISA ID Registers */
#define EISA_ID0 0xc80 /* EISA ID Register 0 */
#define EISA_ID1 0xc81 /* EISA ID Register 1 */
#define EISA_ID2 0xc82 /* EISA ID Register 2 */
#define EISA_ID3 0xc83 /* EISA ID Register 3 */
#define EISA_CR 0xc84 /* EISA Control Register */
#define EISA_REG0 0xc88 /* EISA Configuration Register 0 */
#define EISA_REG1 0xc89 /* EISA Configuration Register 1 */
#define EISA_REG2 0xc8a /* EISA Configuration Register 2 */
#define EISA_REG3 0xc8f /* EISA Configuration Register 3 */
#define EISA_APROM 0xc90 /* Ethernet Address PROM */
/*****************************************************************
* Rx/Tx List Definitions
*
****************************************************************/
#define TLAN_BUFFERS_PER_LIST 10
#define TLAN_LAST_BUFFER 0x80000000
#define TLAN_CSTAT_UNUSED 0x8000
#define TLAN_CSTAT_FRM_CMP 0x4000
#define TLAN_CSTAT_READY 0x3000
#define TLAN_CSTAT_EOC 0x0800
#define TLAN_CSTAT_RX_ERROR 0x0400
#define TLAN_CSTAT_PASS_CRC 0x0200
#define TLAN_CSTAT_DP_PR 0x0100
/*****************************************************************
* PHY definitions
*
****************************************************************/
#define TLAN_PHY_MAX_ADDR 0x1F
#define TLAN_PHY_NONE 0x20
/*****************************************************************
* TLan Driver Timer Definitions
*
****************************************************************/
#define TLAN_TIMER_LINK_BEAT 1
#define TLAN_TIMER_ACTIVITY 2
#define TLAN_TIMER_PHY_PDOWN 3
#define TLAN_TIMER_PHY_PUP 4
#define TLAN_TIMER_PHY_RESET 5
#define TLAN_TIMER_PHY_START_LINK 6
#define TLAN_TIMER_PHY_FINISH_AN 7
#define TLAN_TIMER_FINISH_RESET 8
#define TLAN_TIMER_ACT_DELAY (HZ/10)
/*****************************************************************
* TLan Driver Eeprom Definitions
*
****************************************************************/
#define TLAN_EEPROM_ACK 0
#define TLAN_EEPROM_STOP 1
/*****************************************************************
* Host Register Offsets and Contents
*
****************************************************************/
#define TLAN_HOST_CMD 0x00
#define TLAN_HC_GO 0x80000000
#define TLAN_HC_STOP 0x40000000
#define TLAN_HC_ACK 0x20000000
#define TLAN_HC_CS_MASK 0x1FE00000
#define TLAN_HC_EOC 0x00100000
#define TLAN_HC_RT 0x00080000
#define TLAN_HC_NES 0x00040000
#define TLAN_HC_AD_RST 0x00008000
#define TLAN_HC_LD_TMR 0x00004000
#define TLAN_HC_LD_THR 0x00002000
#define TLAN_HC_REQ_INT 0x00001000
#define TLAN_HC_INT_OFF 0x00000800
#define TLAN_HC_INT_ON 0x00000400
#define TLAN_HC_AC_MASK 0x000000FF
#define TLAN_CH_PARM 0x04
#define TLAN_DIO_ADR 0x08
#define TLAN_DA_ADR_INC 0x8000
#define TLAN_DA_RAM_ADR 0x4000
#define TLAN_HOST_INT 0x0A
#define TLAN_HI_IV_MASK 0x1FE0
#define TLAN_HI_IT_MASK 0x001C
#define TLAN_DIO_DATA 0x0C
/* ThunderLAN Internal Register DIO Offsets */
#define TLAN_NET_CMD 0x00
#define TLAN_NET_CMD_NRESET 0x80
#define TLAN_NET_CMD_NWRAP 0x40
#define TLAN_NET_CMD_CSF 0x20
#define TLAN_NET_CMD_CAF 0x10
#define TLAN_NET_CMD_NOBRX 0x08
#define TLAN_NET_CMD_DUPLEX 0x04
#define TLAN_NET_CMD_TRFRAM 0x02
#define TLAN_NET_CMD_TXPACE 0x01
#define TLAN_NET_SIO 0x01
#define TLAN_NET_SIO_MINTEN 0x80
#define TLAN_NET_SIO_ECLOK 0x40
#define TLAN_NET_SIO_ETXEN 0x20
#define TLAN_NET_SIO_EDATA 0x10
#define TLAN_NET_SIO_NMRST 0x08
#define TLAN_NET_SIO_MCLK 0x04
#define TLAN_NET_SIO_MTXEN 0x02
#define TLAN_NET_SIO_MDATA 0x01
#define TLAN_NET_STS 0x02
#define TLAN_NET_STS_MIRQ 0x80
#define TLAN_NET_STS_HBEAT 0x40
#define TLAN_NET_STS_TXSTOP 0x20
#define TLAN_NET_STS_RXSTOP 0x10
#define TLAN_NET_STS_RSRVD 0x0F
#define TLAN_NET_MASK 0x03
#define TLAN_NET_MASK_MASK7 0x80
#define TLAN_NET_MASK_MASK6 0x40
#define TLAN_NET_MASK_MASK5 0x20
#define TLAN_NET_MASK_MASK4 0x10
#define TLAN_NET_MASK_RSRVD 0x0F
#define TLAN_NET_CONFIG 0x04
#define TLAN_NET_CFG_RCLK 0x8000
#define TLAN_NET_CFG_TCLK 0x4000
#define TLAN_NET_CFG_BIT 0x2000
#define TLAN_NET_CFG_RXCRC 0x1000
#define TLAN_NET_CFG_PEF 0x0800
#define TLAN_NET_CFG_1FRAG 0x0400
#define TLAN_NET_CFG_1CHAN 0x0200
#define TLAN_NET_CFG_MTEST 0x0100
#define TLAN_NET_CFG_PHY_EN 0x0080
#define TLAN_NET_CFG_MSMASK 0x007F
#define TLAN_MAN_TEST 0x06
#define TLAN_DEF_VENDOR_ID 0x08
#define TLAN_DEF_DEVICE_ID 0x0A
#define TLAN_DEF_REVISION 0x0C
#define TLAN_DEF_SUBCLASS 0x0D
#define TLAN_DEF_MIN_LAT 0x0E
#define TLAN_DEF_MAX_LAT 0x0F
#define TLAN_AREG_0 0x10
#define TLAN_AREG_1 0x16
#define TLAN_AREG_2 0x1C
#define TLAN_AREG_3 0x22
#define TLAN_HASH_1 0x28
#define TLAN_HASH_2 0x2C
#define TLAN_GOOD_TX_FRMS 0x30
#define TLAN_TX_UNDERUNS 0x33
#define TLAN_GOOD_RX_FRMS 0x34
#define TLAN_RX_OVERRUNS 0x37
#define TLAN_DEFERRED_TX 0x38
#define TLAN_CRC_ERRORS 0x3A
#define TLAN_CODE_ERRORS 0x3B
#define TLAN_MULTICOL_FRMS 0x3C
#define TLAN_SINGLECOL_FRMS 0x3E
#define TLAN_EXCESSCOL_FRMS 0x40
#define TLAN_LATE_COLS 0x41
#define TLAN_CARRIER_LOSS 0x42
#define TLAN_ACOMMIT 0x43
#define TLAN_LED_REG 0x44
#define TLAN_LED_ACT 0x10
#define TLAN_LED_LINK 0x01
#define TLAN_BSIZE_REG 0x45
#define TLAN_MAX_RX 0x46
#define TLAN_INT_DIS 0x48
#define TLAN_ID_TX_EOC 0x04
#define TLAN_ID_RX_EOF 0x02
#define TLAN_ID_RX_EOC 0x01
/* ThunderLAN Interrupt Codes */
#define TLAN_INT_NUMBER_OF_INTS 8
#define TLAN_INT_NONE 0x0000
#define TLAN_INT_TX_EOF 0x0001
#define TLAN_INT_STAT_OVERFLOW 0x0002
#define TLAN_INT_RX_EOF 0x0003
#define TLAN_INT_DUMMY 0x0004
#define TLAN_INT_TX_EOC 0x0005
#define TLAN_INT_STATUS_CHECK 0x0006
#define TLAN_INT_RX_EOC 0x0007
/* ThunderLAN MII Registers */
/* Generic MII/PHY Registers */
#define MII_GEN_CTL 0x00
#define MII_GC_RESET 0x8000
#define MII_GC_LOOPBK 0x4000
#define MII_GC_SPEEDSEL 0x2000
#define MII_GC_AUTOENB 0x1000
#define MII_GC_PDOWN 0x0800
#define MII_GC_ISOLATE 0x0400
#define MII_GC_AUTORSRT 0x0200
#define MII_GC_DUPLEX 0x0100
#define MII_GC_COLTEST 0x0080
#define MII_GC_RESERVED 0x007F
#define MII_GEN_STS 0x01
#define MII_GS_100BT4 0x8000
#define MII_GS_100BTXFD 0x4000
#define MII_GS_100BTXHD 0x2000
#define MII_GS_10BTFD 0x1000
#define MII_GS_10BTHD 0x0800
#define MII_GS_RESERVED 0x07C0
#define MII_GS_AUTOCMPLT 0x0020
#define MII_GS_RFLT 0x0010
#define MII_GS_AUTONEG 0x0008
#define MII_GS_LINK 0x0004
#define MII_GS_JABBER 0x0002
#define MII_GS_EXTCAP 0x0001
#define MII_GEN_ID_HI 0x02
#define MII_GEN_ID_LO 0x03
#define MII_GIL_OUI 0xFC00
#define MII_GIL_MODEL 0x03F0
#define MII_GIL_REVISION 0x000F
#define MII_AN_ADV 0x04
#define MII_AN_LPA 0x05
#define MII_AN_EXP 0x06
/* ThunderLAN Specific MII/PHY Registers */
#define TLAN_TLPHY_ID 0x10
#define TLAN_TLPHY_CTL 0x11
#define TLAN_TC_IGLINK 0x8000
#define TLAN_TC_SWAPOL 0x4000
#define TLAN_TC_AUISEL 0x2000
#define TLAN_TC_SQEEN 0x1000
#define TLAN_TC_MTEST 0x0800
#define TLAN_TC_RESERVED 0x07F8
#define TLAN_TC_NFEW 0x0004
#define TLAN_TC_INTEN 0x0002
#define TLAN_TC_TINT 0x0001
#define TLAN_TLPHY_STS 0x12
#define TLAN_TS_MINT 0x8000
#define TLAN_TS_PHOK 0x4000
#define TLAN_TS_POLOK 0x2000
#define TLAN_TS_TPENERGY 0x1000
#define TLAN_TS_RESERVED 0x0FFF
#define TLAN_TLPHY_PAR 0x19
#define TLAN_PHY_CIM_STAT 0x0020
#define TLAN_PHY_SPEED_100 0x0040
#define TLAN_PHY_DUPLEX_FULL 0x0080
#define TLAN_PHY_AN_EN_STAT 0x0400
/* National Sem. & Level1 PHY id's */
#define NAT_SEM_ID1 0x2000
#define NAT_SEM_ID2 0x5C01
#define LEVEL1_ID1 0x7810
#define LEVEL1_ID2 0x0000
#define CIRC_INC( a, b ) if ( ++a >= b ) a = 0
/* Routines to access internal registers. */
static inline u8 TLan_DioRead8(u16 base_addr, u16 internal_addr)
{
outw(internal_addr, base_addr + TLAN_DIO_ADR);
return (inb((base_addr + TLAN_DIO_DATA) + (internal_addr & 0x3)));
} /* TLan_DioRead8 */
static inline u16 TLan_DioRead16(u16 base_addr, u16 internal_addr)
{
outw(internal_addr, base_addr + TLAN_DIO_ADR);
return (inw((base_addr + TLAN_DIO_DATA) + (internal_addr & 0x2)));
} /* TLan_DioRead16 */
static inline u32 TLan_DioRead32(u16 base_addr, u16 internal_addr)
{
outw(internal_addr, base_addr + TLAN_DIO_ADR);
return (inl(base_addr + TLAN_DIO_DATA));
} /* TLan_DioRead32 */
static inline void TLan_DioWrite8(u16 base_addr, u16 internal_addr, u8 data)
{
outw(internal_addr, base_addr + TLAN_DIO_ADR);
outb(data, base_addr + TLAN_DIO_DATA + (internal_addr & 0x3));
}
static inline void TLan_DioWrite16(u16 base_addr, u16 internal_addr, u16 data)
{
outw(internal_addr, base_addr + TLAN_DIO_ADR);
outw(data, base_addr + TLAN_DIO_DATA + (internal_addr & 0x2));
}
static inline void TLan_DioWrite32(u16 base_addr, u16 internal_addr, u32 data)
{
outw(internal_addr, base_addr + TLAN_DIO_ADR);
outl(data, base_addr + TLAN_DIO_DATA + (internal_addr & 0x2));
}
#if 0
static inline void TLan_ClearBit(u8 bit, u16 port)
{
outb_p(inb_p(port) & ~bit, port);
}
static inline int TLan_GetBit(u8 bit, u16 port)
{
return ((int) (inb_p(port) & bit));
}
static inline void TLan_SetBit(u8 bit, u16 port)
{
outb_p(inb_p(port) | bit, port);
}
#endif
#define TLan_ClearBit( bit, port ) outb_p(inb_p(port) & ~bit, port)
#define TLan_GetBit( bit, port ) ((int) (inb_p(port) & bit))
#define TLan_SetBit( bit, port ) outb_p(inb_p(port) | bit, port)
#ifdef I_LIKE_A_FAST_HASH_FUNCTION
/* given 6 bytes, view them as 8 6-bit numbers and return the XOR of those */
/* the code below is about seven times as fast as the original code */
static inline u32 TLan_HashFunc(u8 * a)
{
u8 hash;
hash = (a[0] ^ a[3]); /* & 077 */
hash ^= ((a[0] ^ a[3]) >> 6); /* & 003 */
hash ^= ((a[1] ^ a[4]) << 2); /* & 074 */
hash ^= ((a[1] ^ a[4]) >> 4); /* & 017 */
hash ^= ((a[2] ^ a[5]) << 4); /* & 060 */
hash ^= ((a[2] ^ a[5]) >> 2); /* & 077 */
return (hash & 077);
}
#else /* original code */
static inline u32 xor(u32 a, u32 b)
{
return ((a && !b) || (!a && b));
}
#define XOR8( a, b, c, d, e, f, g, h ) xor( a, xor( b, xor( c, xor( d, xor( e, xor( f, xor( g, h ) ) ) ) ) ) )
#define DA( a, bit ) ( ( (u8) a[bit/8] ) & ( (u8) ( 1 << bit%8 ) ) )
static inline u32 TLan_HashFunc(u8 * a)
{
u32 hash;
hash =
XOR8(DA(a, 0), DA(a, 6), DA(a, 12), DA(a, 18), DA(a, 24),
DA(a, 30), DA(a, 36), DA(a, 42));
hash |=
XOR8(DA(a, 1), DA(a, 7), DA(a, 13), DA(a, 19), DA(a, 25),
DA(a, 31), DA(a, 37), DA(a, 43)) << 1;
hash |=
XOR8(DA(a, 2), DA(a, 8), DA(a, 14), DA(a, 20), DA(a, 26),
DA(a, 32), DA(a, 38), DA(a, 44)) << 2;
hash |=
XOR8(DA(a, 3), DA(a, 9), DA(a, 15), DA(a, 21), DA(a, 27),
DA(a, 33), DA(a, 39), DA(a, 45)) << 3;
hash |=
XOR8(DA(a, 4), DA(a, 10), DA(a, 16), DA(a, 22), DA(a, 28),
DA(a, 34), DA(a, 40), DA(a, 46)) << 4;
hash |=
XOR8(DA(a, 5), DA(a, 11), DA(a, 17), DA(a, 23), DA(a, 29),
DA(a, 35), DA(a, 41), DA(a, 47)) << 5;
return hash;
}
#endif /* I_LIKE_A_FAST_HASH_FUNCTION */
