/* * Copyright (c) 1988 University of Utah. * Copyright (c) 1982, 1986, 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * Redistribution is only permitted until one year after the first shipment * of 4.4BSD by the Regents. Otherwise, redistribution and use in source and * binary forms are permitted provided that: (1) source distributions retain * this entire copyright notice and comment, and (2) distributions including * binaries display the following acknowledgement: This product includes * software developed by the University of California, Berkeley and its * contributors'' in the documentation or other materials provided with the * distribution and in all advertising materials mentioning features or use * of this software. Neither the name of the University nor the names of * its contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * from: Utah $Hdr: dcmreg.h 1.3 89/08/23$ * * @(#)dcmreg.h 7.3 (Berkeley) 6/22/90 */ struct dcmdevice { /* host address, only odd bytes addressed */ u_char dcm_pad0; volatile u_char dcm_rsid; /* Reset / ID 0001 */ u_char dcm_pad1; volatile u_char dcm_ic; /* Interrupt control register 0003 */ u_char dcm_pad2; volatile u_char dcm_sem; /* Semaphore register 0005 */ u_char dcm_pad3[0x7ffa]; /* Unaddressable 0006-7fff */ u_char dcm_pad4; volatile u_char dcm_iir; /* Interrupt ident register 8001 */ u_char dcm_pad5; volatile u_char dcm_cr; /* Command register 8003 */ u_char dcm_pad6[0x3fc]; /* Card scratch 8004-83ff */ struct dcmrfifo { u_char ptr_pad1; volatile u_char data_char; u_char ptr_pad2; volatile u_char data_stat; } dcm_rfifos[4][0x80]; /* Receive queues 8400 */ struct { u_char ptr_pad1; volatile u_char data_data; } dcm_bmap[0x100]; /* Bitmap table 8c00 */ struct { u_char ptr_pad; volatile u_char ptr; } dcm_rhead[4]; /* Fifo head - receive 8e00 */ struct { u_char ptr_pad; volatile u_char ptr; } dcm_rtail[4]; /* Fifo tail - receive 8e08 */ struct { u_char ptr_pad; volatile u_char ptr; } dcm_thead[4]; /* Fifo head - transmit 8e10 */ struct { u_char ptr_pad; volatile u_char ptr; } dcm_ttail[4]; /* Fifo tail - transmit 8e18 */ struct { u_char pad1; volatile u_char dcm_conf; u_char pad2; volatile u_char dcm_baud; } dcm_data[4]; /* Configuration registers 8e20 */ u_char dcm_pad7; volatile u_char dcm_mdmin; /* Modem in 8e31 */ u_char dcm_pad8; volatile u_char dcm_mdmout; /* Modem out 8e33 */ u_char dcm_pad9; volatile u_char dcm_mdmmsk; /* Modem mask 8e35 */ struct { u_char pad1; volatile u_char dcm_data; } dcm_cmdtab[4]; /* Command tables 8e36 */ struct { u_char pad1; volatile u_char dcm_data; } dcm_icrtab[4]; /* Interrupt data 8e3e */ u_char dcm_pad10; volatile u_char dcm_stcon; /* Self test condition 8e47 */ u_char dcm_pad11[0x98]; /* Undef SR regs 8e48-8edf */ struct dcmtfifo { u_char ptr_pad1; volatile u_char data_char; } dcm_tfifos[4][0x10]; /* Transmit queues 8ee0 */ }; /* * Overlay structure for port specific queue "registers". * Starts at offset 0x8E00+(port*2). */ struct dcmpreg { u_char pad0; /* +00 */ volatile u_char r_head; /* +01 */ u_char pad1[7]; /* +02 */ volatile u_char r_tail; /* +09 */ u_char pad2[7]; /* +0A */ volatile u_char t_head; /* +11 */ u_char pad3[7]; /* +12 */ volatile u_char t_tail; /* +19 */ }; #define dcm_preg(d, p) ((struct dcmpreg *)((u_int)(d)+0x8e00+(p)*2)) /* interface reset/id */ #define DCMCON 0x80 /* REMOTE/LOCAL switch, read */ #define DCMID 0x5 /* hardwired card id, read */ #define DCMRS 0x80 /* software reset, write */ /* interrupt control */ #define DCMIPL(x) ((((x) >> 4) & 3) + 3) /* interupt level, read */ #define IC_IR 0x40 /* interupt request, read */ #define IC_IE 0x80 /* interupt enable, write */ #define IC_ID 0x00 /* interupt disable, write */ /* Semaphore control */ #define SEM_BSY 0x80 /* read */ #define SEM_CLR 0xFF /* write */ #define SEM_LOCK(dcm) while ((dcm)->dcm_sem & SEM_BSY) #define SEM_UNLOCK(dcm) (dcm)->dcm_sem = SEM_CLR /* command register */ #define CR_PORT0 0x1 #define CR_PORT1 0x2 #define CR_PORT2 0x4 #define CR_PORT3 0x8 #define CR_MODM 0x10 /* change modem output lines */ #define CR_TIMER 0x20 /* 16ms interrupt timer toggle */ #define CR_SELFT 0x40 /* run self test */ #define CR_MASK 0x7f /* interrupt ident register */ #define IIR_PORT0 0x1 #define IIR_PORT1 0x2 #define IIR_PORT2 0x4 #define IIR_PORT3 0x8 #define IIR_SELFT 0x10 /* self test completed */ #define IIR_MODM 0x20 /* change in modem input lines */ #define IIR_TIMEO 0x40 /* Time out */ #define IIR_MASK 0x7f /* self test cond reg */ #define ST_OK 0xe0 /* Line configuration register */ #define LC_PNO 0x00 #define LC_PODD 0x01 #define LC_PEVEN 0x02 #define LC_PMSK 0x03 #define LC_1STOP 0x00 #define LC_1HSTOP 0x04 #define LC_2STOP 0x08 #define LC_STOPMSK 0x0b #define LC_8BITS 0x30 #define LC_7BITS 0x20 #define LC_6BITS 0x10 #define LC_5BITS 0x00 #define LC_BITMSK 0x30 /* baud reg */ #define BR_0 0x00 #define BR_50 0x01 #define BR_75 0x02 #define BR_110 0x03 #define BR_134 0x04 #define BR_150 0x05 #define BR_300 0x06 #define BR_600 0x07 #define BR_900 0x08 #define BR_1200 0x09 #define BR_1800 0x0a #define BR_2400 0x0b #define BR_3600 0x0c #define BR_4800 0x0d #define BR_7200 0x0e #define BR_9600 0x0f #define BR_19200 0x10 #define BR_38400 0x11 /* modem input register */ #define MI_CTS 0x08 #define MI_DM 0x04 #define MI_CD 0x02 #define MI_RI 0x01 /* modem output register */ #define MO_SR 0x04 #define MO_DTR 0x02 #define MO_RTS 0x01 #define MO_ON ((MO_DTR) | (MO_RTS)) #define MO_OFF 0x00 /* cmd-tab values, write */ #define CT_CON 0x1 /* configuration change */ #define CT_TX 0x2 /* transmit buffer not empty */ #define CT_BRK 0x4 /* toggle BREAK */ /* icr-tab values, read */ #define IT_TX 0x1 /* transmit buffer empty */ #define IT_SPEC 0x2 /* special character received */ /* data errors */ #define RD_OVF 0x08 #define RD_BD 0x10 #define RD_PE 0x20 #define RD_OE 0x40 #define RD_FE 0x80 #define RD_MASK 0xf8 /* Transmit/Receive masks */ #define TX_MASK 0x0f #define RX_MASK 0xff /* * WARNING: Serial console is assumed to be the lowest select-code card * and that card must be logical unit 0 in the kernel. Also, CONUNIT must * be 1, the port affected by the REMOTE/LOCAL switch. */ #define CONUNIT (1)