| /************************************************************************** |
| * |
| * 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 |
| ***************************************************************************/ |
| |
| FILE_LICENCE ( GPL2_OR_LATER ); |
| |
| /***************************************************************** |
| * 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 */ |
| |
| /* 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 */ |
