1 /* 2 * eexpress.h: Intel EtherExpress16 defines 3 */ 4 5 /* 6 * EtherExpress card register addresses 7 * as offsets from the base IO region (dev->base_addr) 8 */ 9 10 #define DATAPORT 0x0000 11 #define WRITE_PTR 0x0002 12 #define READ_PTR 0x0004 13 #define SIGNAL_CA 0x0006 14 #define SET_IRQ 0x0007 15 #define SM_PTR 0x0008 16 #define MEM_Dec 0x000a 17 #define MEM_Ctrl 0x000b 18 #define MEM_Page_Ctrl 0x000c 19 #define Config 0x000d 20 #define EEPROM_Ctrl 0x000e 21 #define ID_PORT 0x000f 22 #define MEM_ECtrl 0x000f 23 24 /* 25 * card register defines 26 */ 27 28 /* SET_IRQ */ 29 #define SIRQ_en 0x08 30 #define SIRQ_dis 0x00 31 32 /* EEPROM_Ctrl */ 33 #define EC_Clk 0x01 34 #define EC_CS 0x02 35 #define EC_Wr 0x04 36 #define EC_Rd 0x08 37 #define ASIC_RST 0x40 38 #define i586_RST 0x80 39 40 #define eeprom_delay() { udelay(40); } 41 42 /* 43 * i82586 Memory Configuration 44 */ 45 46 /* (System Configuration Pointer) System start up block, read after 586_RST */ 47 #define SCP_START 0xfff6 48 49 /* Intermediate System Configuration Pointer */ 50 #define ISCP_START 0x0000 51 52 /* System Command Block */ 53 #define SCB_START 0x0008 54 55 /* Start of buffer region. Everything before this is used for control 56 * structures and the CU configuration program. The memory layout is 57 * determined in eexp_hw_probe(), once we know how much memory is 58 * available on the card. 59 */ 60 61 #define TX_BUF_START 0x0100 62 63 #define TX_BUF_SIZE ((24+ETH_FRAME_LEN+31)&~0x1f) 64 #define RX_BUF_SIZE ((32+ETH_FRAME_LEN+31)&~0x1f) 65 66 /* 67 * SCB defines 68 */ 69 70 /* these functions take the SCB status word and test the relevant status bit */ 71 #define SCB_complete(s) (((s) & 0x8000) != 0) 72 #define SCB_rxdframe(s) (((s) & 0x4000) != 0) 73 #define SCB_CUdead(s) (((s) & 0x2000) != 0) 74 #define SCB_RUdead(s) (((s) & 0x1000) != 0) 75 #define SCB_ack(s) ((s) & 0xf000) 76 77 /* Command unit status: 0=idle, 1=suspended, 2=active */ 78 #define SCB_CUstat(s) (((s)&0x0300)>>8) 79 80 /* Receive unit status: 0=idle, 1=suspended, 2=out of resources, 4=ready */ 81 #define SCB_RUstat(s) (((s)&0x0070)>>4) 82 83 /* SCB commands */ 84 #define SCB_CUnop 0x0000 85 #define SCB_CUstart 0x0100 86 #define SCB_CUresume 0x0200 87 #define SCB_CUsuspend 0x0300 88 #define SCB_CUabort 0x0400 89 #define SCB_resetchip 0x0080 90 91 #define SCB_RUnop 0x0000 92 #define SCB_RUstart 0x0010 93 #define SCB_RUresume 0x0020 94 #define SCB_RUsuspend 0x0030 95 #define SCB_RUabort 0x0040 96 97 /* 98 * Command block defines 99 */ 100 101 #define Stat_Done(s) (((s) & 0x8000) != 0) 102 #define Stat_Busy(s) (((s) & 0x4000) != 0) 103 #define Stat_OK(s) (((s) & 0x2000) != 0) 104 #define Stat_Abort(s) (((s) & 0x1000) != 0) 105 #define Stat_STFail (((s) & 0x0800) != 0) 106 #define Stat_TNoCar(s) (((s) & 0x0400) != 0) 107 #define Stat_TNoCTS(s) (((s) & 0x0200) != 0) 108 #define Stat_TNoDMA(s) (((s) & 0x0100) != 0) 109 #define Stat_TDefer(s) (((s) & 0x0080) != 0) 110 #define Stat_TColl(s) (((s) & 0x0040) != 0) 111 #define Stat_TXColl(s) (((s) & 0x0020) != 0) 112 #define Stat_NoColl(s) ((s) & 0x000f) 113 114 /* Cmd_END will end AFTER the command if this is the first 115 * command block after an SCB_CUstart, but BEFORE the command 116 * for all subsequent commands. Best strategy is to place 117 * Cmd_INT on the last command in the sequence, followed by a 118 * dummy Cmd_Nop with Cmd_END after this. 119 */ 120 121 #define Cmd_END 0x8000 122 #define Cmd_SUS 0x4000 123 #define Cmd_INT 0x2000 124 125 #define Cmd_Nop 0x0000 126 #define Cmd_SetAddr 0x0001 127 #define Cmd_Config 0x0002 128 #define Cmd_MCast 0x0003 129 #define Cmd_Xmit 0x0004 130 #define Cmd_TDR 0x0005 131 #define Cmd_Dump 0x0006 132 #define Cmd_Diag 0x0007 133 134 135 /* 136 * Frame Descriptor (Receive block) defines 137 */ 138 139 #define FD_Done(s) (((s) & 0x8000) != 0) 140 #define FD_Busy(s) (((s) & 0x4000) != 0) 141 #define FD_OK(s) (((s) & 0x2000) != 0) 142 143 #define FD_CRC(s) (((s) & 0x0800) != 0) 144 #define FD_Align(s) (((s) & 0x0400) != 0) 145 #define FD_Resrc(s) (((s) & 0x0200) != 0) 146 #define FD_DMA(s) (((s) & 0x0100) != 0) 147 #define FD_Short(s) (((s) & 0x0080) != 0) 148 #define FD_NoEOF(s) (((s) & 0x0040) != 0) 149 150 struct rfd_header { 151 volatile unsigned long flags; 152 volatile unsigned short link; 153 volatile unsigned short rbd_offset; 154 volatile unsigned short dstaddr1; 155 volatile unsigned short dstaddr2; 156 volatile unsigned short dstaddr3; 157 volatile unsigned short srcaddr1; 158 volatile unsigned short srcaddr2; 159 volatile unsigned short srcaddr3; 160 volatile unsigned short length; 161 162 /* This is actually a Receive Buffer Descriptor. The way we 163 * arrange memory means that an RBD always follows the RFD that 164 * points to it, so they might as well be in the same structure. 165 */ 166 volatile unsigned short actual_count; 167 volatile unsigned short next_rbd; 168 volatile unsigned short buf_addr1; 169 volatile unsigned short buf_addr2; 170 volatile unsigned short size; 171 }; 172 173 /* Returned data from the Time Domain Reflectometer */ 174 175 #define TDR_LINKOK (1<<15) 176 #define TDR_XCVRPROBLEM (1<<14) 177 #define TDR_OPEN (1<<13) 178 #define TDR_SHORT (1<<12) 179 #define TDR_TIME 0x7ff 180