/************************************************************************** * * tlan.c -- Etherboot device driver for the Texas Instruments ThunderLAN * Written 2003-2003 by Timothy Legge * * 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 #include #include */ 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. */ 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 */ 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 */ 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 */ 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)); } 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)); } 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 inline void TLan_ClearBit(u8 bit, u16 port) { outb_p(inb_p(port) & ~bit, port); } inline int TLan_GetBit(u8 bit, u16 port) { return ((int) (inb_p(port) & bit)); } 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 */ 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 */ 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 ) ) ) 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 */