/* $NetBSD: scnvar.h,v 1.2 1996/12/23 08:37:11 matthias Exp $ */ /* * Copyright (c) 1996 Phil Budne. * Copyright (c) 1993 Philip A. Nelson. * All rights reserved. * * 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 Philip A. Nelson. * 4. The name of Philip A. Nelson may not be used to endorse or promote * products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY PHILIP NELSON ``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 PHILIP NELSON 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. * * scnvar.h: definitions for pc532 2681/2692 duart driver */ /* Constants. */ #ifdef COMDEF_SPEED #undef TTYDEF_SPEED #define TTYDEF_SPEED COMDEF_SPEED /* default baud rate */ #endif #define SCN_FIRST_ADR 0x28000000 /* address of first RS232 port */ #define SCN_FIRST_MAP_ADR 0xFFC80000 /* mapped address of first port */ #define SCN_SIZE 0x8 /* address space for port */ #define SCN_CONSOLE 0 /* minor number of console */ #define SCN_CON_MAP_STAT 0xFFC80001 /* raw addresses for console */ #define SCN_CON_MAP_DATA 0xFFC80003 /* Mapped .... */ #define SCN_CON_MAP_ISR 0xFFC80005 #define SCN_CON_STAT 0x28000001 /* raw addresses for console */ #define SCN_CON_DATA 0x28000003 /* Unmapped .... */ #define SCN_CON_ISR 0x28000005 /* output port bits */ #define OP_RTSA OP_OP0 #define OP_RTSB OP_OP1 #define OP_DTRA OP_OP2 #define OP_DTRB OP_OP3 /* OP4-7 not connected */ /* input port bits */ #define IP_CTSA IP_IP0 #define IP_CTSB IP_IP1 #define IP_DCDB IP_IP2 #define IP_DCDA IP_IP3 /* IP4-6 not connected */ #define ACR_DELTA_CTSA ACR_DELTA_IP0 #define ACR_DELTA_CTSB ACR_DELTA_IP1 #define ACR_DELTA_DCDB ACR_DELTA_IP2 #define ACR_DELTA_DCDA ACR_DELTA_IP3 #define IPCR_CTSA IPCR_IP0 #define IPCR_CTSB IPCR_IP1 #define IPCR_DCDB IPCR_IP2 #define IPCR_DCDA IPCR_IP3 #define IPCR_DELTA_CTSA IPCR_DELTA_IP0 #define IPCR_DELTA_CTSB IPCR_DELTA_IP1 #define IPCR_DELTA_DCDB IPCR_DELTA_IP2 #define IPCR_DELTA_DCDA IPCR_DELTA_IP3 #define SP_GRP0 0x00 #define SP_GRP1 0x10 #define SP_BOTH 0x20 #define SCN_OP_BIS(SC,VAL) ((SC)->duart->base[DU_OPSET] = (VAL)) #define SCN_OP_BIC(SC,VAL) ((SC)->duart->base[DU_OPCLR] = (VAL)) #define SCN_DCD(SC) (((SC)->duart->base[DU_IP] & (SC)->sc_ip_dcd) == 0) /* pc532 duarts are auto-sized to byte-wide */ #define CH_SZ 8 #define DUART_SZ 16 #define SCN_REG(n) (n) /* n'th reg at n'th byte!! */ /* The DUART description struct; for data common to both channels */ struct duart_info { volatile u_char *base; int i_speed[2], o_speed[2]; /* Channel A and B speeds. */ char i_code[2], o_code[2]; /* Channel A and B speeds. */ char speed_grp; /* BRG speed group */ char acr_bits; /* ACR bits 0-6 */ char imr_int_bits; /* IMR bits current set. */ char opcr_bits; /* OPCR bits to set */ char hwflags; #define SCN_HW_2692 1 #define SCN_HW_26C92 2 }; #define SCN_RING_BITS 9 /* 512 byte buffers */ #define SCN_RING_SIZE (1<> 2)) /* scn channel state */ struct scn_softc { struct device scn_dev; struct tty *scn_tty; /* XXXPLB: prefix with scn_; */ int unit; /* unit number of this line (base 0) */ struct duart_info *duart; /* pointer to duart struct */ volatile u_char *chbase; /* per-channel registers (CH_xxx) */ u_char lstatus; /* last line status (sr) */ u_char scn_swflags; /* from config / TIOCxFLAGS */ #define SCN_SW_SOFTCAR 0x01 #define SCN_SW_CLOCAL 0x02 #define SCN_SW_CRTSCTS 0x04 #define SCN_SW_MDMBUF 0x08 /* not implemented */ /* I wish there was a TS_DIALOUT flag! */ u_char scn_dialout; /* set if open for dialout */ #define SCN_DIALOUT(SCN) ((SCN)->scn_dialout) #define SCN_SETDIALOUT(SCN) (SCN)->scn_dialout = 1 #define SCN_CLRDIALOUT(SCN) (SCN)->scn_dialout = 0 /* bits in input port register */ u_char sc_ip_dcd; u_char sc_ip_cts; /* bits in output port registers */ u_char sc_op_rts; u_char sc_op_dtr; /* interrupt mask bits */ u_char sc_tx_int; /* error counts */ u_long framing_errors; /* NYI */ u_long overrun_errors; u_long parity_errors; /* NYI */ u_long break_interrupts; /* NYI */ /* ring buffer for rxrdy interrupt */ u_int sc_rbget; /* ring buffer `get' index */ volatile u_int sc_rbput; /* ring buffer `put' index */ int sc_rbhiwat; short sc_rbuf[SCN_RING_SIZE]; /* status + data */ long sc_fotime; /* last fifo overrun message */ long sc_rotime; /* last ring overrun message */ u_long ring_overruns; /* number of ring buffer overruns */ /* Flags to communicate with scntty_softint() */ volatile char sc_rx_blocked; /* input block at ring */ };