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BSD 4_3_Reno release
[unix-history] / usr / src / sys / hpdev / dcmreg.h
/*
* 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)
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.