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- /*
- * 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 $Hdr: dcmreg.h 1.1 90/07/09$
- *
- * @(#)dcmreg.h 7.4 (Berkeley) 11/4/90
- */
-
- 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 */
- 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)
-