/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Steve C. Woodford.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef __clmpccvar_h
#define __clmpccvar_h
/* Buffer size for character buffer */
#define CLMPCC_RING_SIZE 512
/* How many channels per chip */
#define CLMPCC_NUM_CHANS 4
/* Reasons for calling the MD code's iack hook function */
#define CLMPCC_IACK_MODEM 0
#define CLMPCC_IACK_RX 1
#define CLMPCC_IACK_TX 2
struct clmpcc_softc;
/*
* Each channel is represented by one of the following structures
*/
struct clmpcc_chan {
struct tty *ch_tty; /* This channel's tty structure */
struct clmpcc_softc *ch_sc; /* Pointer to chip's softc structure */
u_char ch_car; /* Channel number (CD2400_REG_CAR) */
u_char ch_openflags; /* Persistent TIOC flags */
volatile u_short ch_flags; /* Various channel-specific flags */
#define CLMPCC_FLG_IS_CONSOLE 0x0001 /* Channel is system console */
#define CLMPCC_FLG_START_BREAK 0x0002
#define CLMPCC_FLG_END_BREAK 0x0004
#define CLMPCC_FLG_FIFO_CLEAR 0x0008
#define CLMPCC_FLG_UPDATE_PARMS 0x0010
#define CLMPCC_FLG_NEED_INIT 0x0020
u_char ch_tx_done;
u_char ch_control;
/* New port parameters wait here until written by the Tx ISR */
u_char ch_tcor;
u_char ch_tbpr;
u_char ch_rcor;
u_char ch_rbpr;
u_char ch_cor1;
u_char ch_cor2;
u_char ch_cor3;
u_char ch_cor4; /* Current Rx Fifo threshold */
u_char ch_cor5;
u_int8_t *ch_ibuf; /* Start of input ring buffer */
u_int8_t *ch_ibuf_end; /* End of input ring buffer */
u_int8_t *ch_ibuf_rd; /* Input buffer tail (reader) */
u_int8_t *ch_ibuf_wr; /* Input buffer head (writer) */
/*
* The bus/MD-specific attachment code must initialise the
* following fields before calling 'clmpcc_attach_subr()'.
*/
bus_space_tag_t sc_iot; /* Tag for parent bus */
bus_space_handle_t sc_ioh; /* Handle for chip's regs */
void *sc_data; /* MD-specific data */
int sc_clk; /* Clock-rate, in Hz */
struct evcnt *sc_evcnt; /* Parent Event Counter (or NULL) */
u_char sc_vector_base; /* Vector base reg, or 0 for auto */
u_char sc_rpilr; /* Receive Priority Interrupt Level */
u_char sc_tpilr; /* Transmit Priority Interrupt Level */
u_char sc_mpilr; /* Modem Priority Interrupt Level */
int sc_swaprtsdtr; /* Non-zero if RTS and DTR swapped */
u_int sc_byteswap; /* One of the following ... */
#define CLMPCC_BYTESWAP_LOW 0x00 /* *byteswap pin is low */
#define CLMPCC_BYTESWAP_HIGH 0x03 /* *byteswap pin is high */
void *sc_softintr_cookie;
/* Called when an interrupt has to be acknowledged in polled mode. */
void (*sc_iackhook)(struct clmpcc_softc *, int);
/*
* No user-serviceable parts below
*/
struct clmpcc_chan sc_chans[CLMPCC_NUM_CHANS];
};
extern void clmpcc_attach(struct clmpcc_softc *);
extern int clmpcc_cnattach(struct clmpcc_softc *, int, int);
extern int clmpcc_rxintr(void *);
extern int clmpcc_txintr(void *);
extern int clmpcc_mdintr(void *);
extern void clmpcc_softintr(void *);
