/*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Tim L. Tucker * * %sccs.include.noredist.c% * * @(#)if_wereg.h 5.1 (Berkeley) 04/22/90 */ /* * Western Digital 8003 ethernet/starlan adapter */ /* * Memory Select Register (MSR) */ union wd_mem_sel { struct memory_decode { u_char msd_addr:6, /* Memory decode bits */ msd_enable:1, /* Memory (RAM) enable */ msd_reset:1; /* Software reset */ } msd_decode; #define ms_addr msd_decode.msd_addr #define ms_enable msd_decode.msd_enable #define ms_reset msd_decode.msd_reset u_char ms_byte; /* entire byte */ }; /* * receive ring discriptor * * The National Semiconductor NS32490 Network interface controller uses * the following receive ring headers. The way this works is that the * memory on the interface card is chopped up into 256 bytes blocks. * A contiuguous portion of those blocks are marked for receive packets * by setting start and end block #'s in the NIC. For each packet that * is put into the receive ring, one of these headers (4 bytes each) is * tacked onto the front. */ struct wd_ring { struct wdr_status { /* received packet status */ u_char rs_prx:1, /* packet received intack */ rs_crc:1, /* crc error */ rs_fae:1, /* frame alignment error */ rs_fo:1, /* fifo overrun */ rs_mpa:1, /* packet received intack */ rs_phy:1, /* packet received intack */ rs_dis:1, /* packet received intack */ rs_dfr:1; /* packet received intack */ } wd_rcv_status; /* received packet status */ u_char wd_next_packet; /* pointer to next packet */ u_short wd_count; /* bytes in packet (length + 4) */ }; /* * Command word definition */ union wd_command { struct command_decode { u_char csd_stp:1, /* STOP! */ csd_sta:1, /* START! */ csd_txp:1, /* Transmit packet */ csd_rd:3, /* Remote DMA command */ csd_ps:2; /* Page select */ } csd_decode; #define cs_stp csd_decode.csd_stp #define cs_sta csd_decode.csd_sta #define cs_txp csd_decode.csd_txp #define cs_rd csd_decode.csd_rd #define cs_ps csd_decode.csd_ps u_char cs_byte; /* entire command byte */ }; /* * Interrupt status definition */ union wd_interrupt { struct interrupt_decode { u_char isd_prx:1, /* Packet received */ isd_ptx:1, /* Packet transmitted */ isd_rxe:1, /* Receive error */ isd_txe:1, /* Transmit error */ isd_ovw:1, /* Overwrite warning */ isd_cnt:1, /* Counter overflow */ isd_rdc:1, /* Remote DMA complete */ isd_rst:1; /* Reset status */ } isd_decode; #define is_prx isd_decode.isd_prx #define is_ptx isd_decode.isd_ptx #define is_rxe isd_decode.isd_rxe #define is_txe isd_decode.isd_txe #define is_ovw isd_decode.isd_ovw #define is_cnt isd_decode.isd_cnt #define is_rdc isd_decode.isd_rdc #define is_rst isd_decode.isd_rst u_char is_byte; /* entire interrupt byte */ }; /* * Status word definition (transmit) */ union wdt_status { struct tstat { u_char tsd_ptx:1, /* Packet transmitted intack */ tsd_dfr:1, /* Non deferred transmition */ tsd_col:1, /* Transmit Collided */ tsd_abt:1, /* Transmit Aborted (coll > 16) */ tsd_crs:1, /* Carrier Sense Lost */ tsd_fu:1, /* Fifo Underrun */ tsd_chd:1, /* CD Heartbeat */ tsd_owc:1; /* Out of Window Collision */ } tsd_decode; #define ts_ptx tsd_decode.tsd_ptx #define ts_dfr tsd_decode.tsd_dfr #define ts_col tsd_decode.tsd_col #define ts_abt tsd_decode.tsd_abt #define ts_crs tsd_decode.tsd_crs #define ts_fu tsd_decode.tsd_fu #define ts_chd tsd_decode.tsd_chd #define ts_owc tsd_decode.tsd_owc u_char ts_byte; /* entire transmit byte */ }; /* * General constant definitions */ #define WD_STARLAN 0x02 /* WD8003S Identification */ #define WD_ETHER 0x03 /* WD8003E Identification */ #define WD_CHECKSUM 0xFF /* Checksum byte */ #define WD_PAGE_SIZE 256 /* Size of RAM pages in bytes */ #define WD_TXBUF_SIZE 6 /* Size of TX buffer in pages */ #define WD_ROM_OFFSET 8 /* i/o base offset to ROM */ #define WD_IO_PORTS 32 /* # of i/o addresses used */ #define WD_NIC_OFFSET 16 /* i/o base offset to NIC */ /* * Page register offset values */ #define WD_P0_COMMAND 0x00 /* Command register */ #define WD_P0_PSTART 0x01 /* Page Start register */ #define WD_P0_PSTOP 0x02 /* Page Stop register */ #define WD_P0_BNRY 0x03 /* Boundary Pointer */ #define WD_P0_TSR 0x04 /* Transmit Status (read-only) */ #define WD_P0_TPSR WD_P0_TSR /* Transmit Page (write-only) */ #define WD_P0_TBCR0 0x05 /* Transmit Byte count, low WO */ #define WD_P0_TBCR1 0x06 /* Transmit Byte count, high WO */ #define WD_P0_ISR 0x07 /* Interrupt status register */ #define WD_P0_RBCR0 0x0A /* Remote byte count low WO */ #define WD_P0_RBCR1 0x0B /* Remote byte count high WO */ #define WD_P0_RSR 0x0C /* Receive status RO */ #define WD_P0_RCR WD_P0_RSR /* Receive configuration WO */ #define WD_P0_TCR 0x0D /* Transmit configuration WO */ #define WD_P0_DCR 0x0E /* Data configuration WO */ #define WD_P0_IMR 0x0F /* Interrupt masks WO */ #define WD_P1_COMMAND 0x00 /* Command register */ #define WD_P1_PAR0 0x01 /* Physical address register 0 */ #define WD_P1_PAR1 0x02 /* Physical address register 1 */ #define WD_P1_PAR2 0x03 /* Physical address register 2 */ #define WD_P1_PAR3 0x04 /* Physical address register 3 */ #define WD_P1_PAR4 0x05 /* Physical address register 4 */ #define WD_P1_PAR5 0x06 /* Physical address register 5 */ #define WD_P1_CURR 0x07 /* Current page (receive unit) */ #define WD_P1_MAR0 0x08 /* Multicast address register 0 */ /* * Configuration constants (receive unit) */ #define WD_R_SEP 0x01 /* Save error packets */ #define WD_R_AR 0x02 /* Accept Runt packets */ #define WD_R_AB 0x04 /* Accept Broadcast packets */ #define WD_R_AM 0x08 /* Accept Multicast packets */ #define WD_R_PRO 0x10 /* Promiscuous physical */ #define WD_R_MON 0x20 /* Monitor mode */ #define WD_R_RES1 0x40 /* reserved... */ #define WD_R_RES2 0x80 /* reserved... */ #define WD_R_CONFIG (WD_R_AB) /* * Configuration constants (transmit unit) */ #define WD_T_CRC 0x01 /* Inhibit CRC */ #define WD_T_LB0 0x02 /* Encoded Loopback Control */ #define WD_T_LB1 0x04 /* Encoded Loopback Control */ #define WD_T_ATD 0x08 /* Auto Transmit Disable */ #define WD_T_OFST 0x10 /* Collision Offset Enable */ #define WD_T_RES1 0x20 /* reserved... */ #define WD_T_RES2 0x40 /* reserved... */ #define WD_T_RES3 0x80 /* reserved... */ #define WD_T_CONFIG (0) /* * Configuration constants (data unit) */ #define WD_D_WTS 0x01 /* Word Transfer Select */ #define WD_D_BOS 0x02 /* Byte Order Select */ #define WD_D_LAS 0x04 /* Long Address Select */ #define WD_D_BMS 0x08 /* Burst Mode Select */ #define WD_D_AR 0x10 /* Autoinitialize Remote */ #define WD_D_FT0 0x20 /* Fifo Threshold Select */ #define WD_D_FT1 0x40 /* Fifo Threshold Select */ #define WD_D_RES 0x80 /* reserved... */ #define WD_D_CONFIG (WD_D_FT1|WD_D_BMS) /* * Configuration constants (interrupt mask register) */ #define WD_I_PRXE 0x01 /* Packet received enable */ #define WD_I_PTXE 0x02 /* Packet transmitted enable */ #define WD_I_RXEE 0x04 /* Receive error enable */ #define WD_I_TXEE 0x08 /* Transmit error enable */ #define WD_I_OVWE 0x10 /* Overwrite warning enable */ #define WD_I_CNTE 0x20 /* Counter overflow enable */ #define WD_I_RDCE 0x40 /* Dma complete enable */ #define WD_I_RES 0x80 /* reserved... */ #define WD_I_CONFIG (WD_I_PRXE|WD_I_PTXE|WD_I_RXEE|WD_I_TXEE)