1 #ifndef _EPIC100_H_ 2 # define _EPIC100_H_ 3 4 FILE_LICENCE ( GPL2_OR_LATER ); 5 6 #ifndef PCI_VENDOR_SMC 7 # define PCI_VENDOR_SMC 0x10B8 8 #endif 9 10 #ifndef PCI_DEVICE_SMC_EPIC100 11 # define PCI_DEVICE_SMC_EPIC100 0x0005 12 #endif 13 14 #define PCI_DEVICE_ID_NONE 0xFFFF 15 16 /* Offsets to registers (using SMC names). */ 17 enum epic100_registers { 18 COMMAND= 0, /* Control Register */ 19 INTSTAT= 4, /* Interrupt Status */ 20 INTMASK= 8, /* Interrupt Mask */ 21 GENCTL = 0x0C, /* General Control */ 22 NVCTL = 0x10, /* Non Volatile Control */ 23 EECTL = 0x14, /* EEPROM Control */ 24 TEST = 0x1C, /* Test register: marked as reserved (see in source code) */ 25 CRCCNT = 0x20, /* CRC Error Counter */ 26 ALICNT = 0x24, /* Frame Alignment Error Counter */ 27 MPCNT = 0x28, /* Missed Packet Counter */ 28 MMCTL = 0x30, /* MII Management Interface Control */ 29 MMDATA = 0x34, /* MII Management Interface Data */ 30 MIICFG = 0x38, /* MII Configuration */ 31 IPG = 0x3C, /* InterPacket Gap */ 32 LAN0 = 0x40, /* MAC address. (0x40-0x48) */ 33 IDCHK = 0x4C, /* BoardID/ Checksum */ 34 MC0 = 0x50, /* Multicast filter table. (0x50-0x5c) */ 35 RXCON = 0x60, /* Receive Control */ 36 TXCON = 0x70, /* Transmit Control */ 37 TXSTAT = 0x74, /* Transmit Status */ 38 PRCDAR = 0x84, /* PCI Receive Current Descriptor Address */ 39 PRSTAT = 0xA4, /* PCI Receive DMA Status */ 40 PRCPTHR= 0xB0, /* PCI Receive Copy Threshold */ 41 PTCDAR = 0xC4, /* PCI Transmit Current Descriptor Address */ 42 ETHTHR = 0xDC /* Early Transmit Threshold */ 43 }; 44 45 /* Command register (CR_) bits */ 46 #define CR_STOP_RX (0x00000001) 47 #define CR_START_RX (0x00000002) 48 #define CR_QUEUE_TX (0x00000004) 49 #define CR_QUEUE_RX (0x00000008) 50 #define CR_NEXTFRAME (0x00000010) 51 #define CR_STOP_TX_DMA (0x00000020) 52 #define CR_STOP_RX_DMA (0x00000040) 53 #define CR_TX_UGO (0x00000080) 54 55 /* Interrupt register bits. NI means No Interrupt generated */ 56 57 #define INTR_RX_THR_STA (0x00400000) /* rx copy threshold status NI */ 58 #define INTR_RX_BUFF_EMPTY (0x00200000) /* rx buffers empty. NI */ 59 #define INTR_TX_IN_PROG (0x00100000) /* tx copy in progess. NI */ 60 #define INTR_RX_IN_PROG (0x00080000) /* rx copy in progress. NI */ 61 #define INTR_TXIDLE (0x00040000) /* tx idle. NI */ 62 #define INTR_RXIDLE (0x00020000) /* rx idle. NI */ 63 #define INTR_INTR_ACTIVE (0x00010000) /* Interrupt active. NI */ 64 #define INTR_RX_STATUS_OK (0x00008000) /* rx status valid. NI */ 65 #define INTR_PCI_TGT_ABT (0x00004000) /* PCI Target abort */ 66 #define INTR_PCI_MASTER_ABT (0x00002000) /* PCI Master abort */ 67 #define INTR_PCI_PARITY_ERR (0x00001000) /* PCI adress parity error */ 68 #define INTR_PCI_DATA_ERR (0x00000800) /* PCI data parity error */ 69 #define INTR_RX_THR_CROSSED (0x00000400) /* rx copy threshold crossed */ 70 #define INTR_CNTFULL (0x00000200) /* Counter overflow */ 71 #define INTR_TXUNDERRUN (0x00000100) /* tx underrun. */ 72 #define INTR_TXEMPTY (0x00000080) /* tx queue empty */ 73 #define INTR_TX_CH_COMPLETE (0x00000040) /* tx chain complete */ 74 #define INTR_TXDONE (0x00000020) /* tx complete (w or w/o err) */ 75 #define INTR_RXERROR (0x00000010) /* rx error (CRC) */ 76 #define INTR_RXOVERFLOW (0x00000008) /* rx buffer overflow */ 77 #define INTR_RX_QUEUE_EMPTY (0x00000004) /* rx queue empty. */ 78 #define INTR_RXHEADER (0x00000002) /* header copy complete */ 79 #define INTR_RXDONE (0x00000001) /* Receive copy complete */ 80 81 #define INTR_CLEARINTR (0x00007FFF) 82 #define INTR_VALIDBITS (0x007FFFFF) 83 #define INTR_DISABLE (0x00000000) 84 #define INTR_CLEARERRS (0x00007F18) 85 #define INTR_ABNINTR (INTR_CNTFULL | INTR_TXUNDERRUN | INTR_RXOVERFLOW) 86 87 /* General Control (GC_) bits */ 88 89 #define GC_SOFT_RESET (0x00000001) 90 #define GC_INTR_ENABLE (0x00000002) 91 #define GC_SOFT_INTR (0x00000004) 92 #define GC_POWER_DOWN (0x00000008) 93 #define GC_ONE_COPY (0x00000010) 94 #define GC_BIG_ENDIAN (0x00000020) 95 #define GC_RX_PREEMPT_TX (0x00000040) 96 #define GC_TX_PREEMPT_RX (0x00000080) 97 98 /* 99 * Receive FIFO Threshold values 100 * Control the level at which the PCI burst state machine 101 * begins to empty the receive FIFO. Possible values: 0-3 102 * 103 * 0 => 32, 1 => 64, 2 => 96 3 => 128 bytes. 104 */ 105 #define GC_RX_FIFO_THR_32 (0x00000000) 106 #define GC_RX_FIFO_THR_64 (0x00000100) 107 #define GC_RX_FIFO_THR_96 (0x00000200) 108 #define GC_RX_FIFO_THR_128 (0x00000300) 109 110 /* Memory Read Control (MRC_) values */ 111 #define GC_MRC_MEM_READ (0x00000000) 112 #define GC_MRC_READ_MULT (0x00000400) 113 #define GC_MRC_READ_LINE (0x00000800) 114 115 #define GC_SOFTBIT0 (0x00001000) 116 #define GC_SOFTBIT1 (0x00002000) 117 #define GC_RESET_PHY (0x00004000) 118 119 /* Definitions of the Receive Control (RC_) register bits */ 120 121 #define RC_SAVE_ERRORED_PKT (0x00000001) 122 #define RC_SAVE_RUNT_FRAMES (0x00000002) 123 #define RC_RCV_BROADCAST (0x00000004) 124 #define RC_RCV_MULTICAST (0x00000008) 125 #define RC_RCV_INVERSE_PKT (0x00000010) 126 #define RC_PROMISCUOUS_MODE (0x00000020) 127 #define RC_MONITOR_MODE (0x00000040) 128 #define RC_EARLY_RCV_ENABLE (0x00000080) 129 130 /* description of the rx descriptors control bits */ 131 #define RD_FRAGLIST (0x0001) /* Desc points to a fragment list */ 132 #define RD_LLFORM (0x0002) /* Frag list format */ 133 #define RD_HDR_CPY (0x0004) /* Desc used for header copy */ 134 135 /* Definition of the Transmit CONTROL (TC) register bits */ 136 137 #define TC_EARLY_TX_ENABLE (0x00000001) 138 139 /* Loopback Mode (LM_) Select valuesbits */ 140 #define TC_LM_NORMAL (0x00000000) 141 #define TC_LM_INTERNAL (0x00000002) 142 #define TC_LM_EXTERNAL (0x00000004) 143 #define TC_LM_FULL_DPX (0x00000006) 144 145 #define TX_SLOT_TIME (0x00000078) 146 147 /* Bytes transferred to chip before transmission starts. */ 148 #define TX_FIFO_THRESH 128 /* Rounded down to 4 byte units. */ 149 150 /* description of rx descriptors status bits */ 151 #define RRING_PKT_INTACT (0x0001) 152 #define RRING_ALIGN_ERR (0x0002) 153 #define RRING_CRC_ERR (0x0004) 154 #define RRING_MISSED_PKT (0x0008) 155 #define RRING_MULTICAST (0x0010) 156 #define RRING_BROADCAST (0x0020) 157 #define RRING_RECEIVER_DISABLE (0x0040) 158 #define RRING_STATUS_VALID (0x1000) 159 #define RRING_FRAGLIST_ERR (0x2000) 160 #define RRING_HDR_COPIED (0x4000) 161 #define RRING_OWN (0x8000) 162 163 /* error summary */ 164 #define RRING_ERROR (RRING_ALIGN_ERR|RRING_CRC_ERR) 165 166 /* description of tx descriptors status bits */ 167 #define TRING_PKT_INTACT (0x0001) /* pkt transmitted. */ 168 #define TRING_PKT_NONDEFER (0x0002) /* pkt xmitted w/o deferring */ 169 #define TRING_COLL (0x0004) /* pkt xmitted w collisions */ 170 #define TRING_CARR (0x0008) /* carrier sense lost */ 171 #define TRING_UNDERRUN (0x0010) /* DMA underrun */ 172 #define TRING_HB_COLL (0x0020) /* Collision detect Heartbeat */ 173 #define TRING_WIN_COLL (0x0040) /* out of window collision */ 174 #define TRING_DEFERRED (0x0080) /* Deferring */ 175 #define TRING_COLL_COUNT (0x0F00) /* collision counter (mask) */ 176 #define TRING_COLL_EXCESS (0x1000) /* tx aborted: excessive colls */ 177 #define TRING_OWN (0x8000) /* desc ownership bit */ 178 179 /* error summary */ 180 #define TRING_ABORT (TRING_COLL_EXCESS|TRING_WIN_COLL|TRING_UNDERRUN) 181 #define TRING_ERROR (TRING_DEFERRED|TRING_WIN_COLL|TRING_UNDERRUN|TRING_CARR/*|TRING_COLL*/ ) 182 183 /* description of the tx descriptors control bits */ 184 #define TD_FRAGLIST (0x0001) /* Desc points to a fragment list */ 185 #define TD_LLFORM (0x0002) /* Frag list format */ 186 #define TD_IAF (0x0004) /* Generate Interrupt after tx */ 187 #define TD_NOCRC (0x0008) /* No CRC generated */ 188 #define TD_LASTDESC (0x0010) /* Last desc for this frame */ 189 190 #endif /* _EPIC100_H_ */ 191