254 lines
7.9 KiB
C
254 lines
7.9 KiB
C
/*
|
|
* 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 and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* from: Utah Hdr: dcmreg.h 1.1 90/07/09
|
|
* from: @(#)dcmreg.h 7.4 (Berkeley) 11/4/90
|
|
* $Id: dcmreg.h,v 1.2 1993/08/01 19:24:00 mycroft Exp $
|
|
*/
|
|
|
|
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 */
|
|
struct modemreg {
|
|
u_char pad0;
|
|
volatile u_char mdmin; /* Modem in 8e31 */
|
|
u_char pad1;
|
|
volatile u_char mdmout; /* Modem out 8e33 */
|
|
u_char pad2;
|
|
volatile u_char mdmmsk; /* Modem mask 8e35 */
|
|
} dcm_modem0;
|
|
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 */
|
|
struct modemreg dcm_modem1; /* 638 Modem port1 8e48 */
|
|
struct modemreg dcm_modem2; /* 638 Modem port2 8e4e */
|
|
struct modemreg dcm_modem3; /* 638 Modem port3 8e54 */
|
|
u_char dcm_pad11;
|
|
volatile u_char dcm_modemchng; /* 638 Modem change mask 8e5b */
|
|
u_char dcm_pad12;
|
|
volatile u_char dcm_modemintr; /* 638 Modem interrupt mask 8e5d */
|
|
u_char dcm_pad13[0x82]; /* Undef Shared Ram 8e5e-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)
|