97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
/* $NetBSD: epcomvar.h,v 1.7 2012/10/27 17:17:37 chs Exp $ */
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/*-
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* Copyright (c) 2004 Jesse Off
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef _EPCOMVAR_H_
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#define _EPCOMVAR_H_
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/* Hardware flag masks */
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#define COM_HW_NOIEN 0x01
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#define COM_HW_DEV_OK 0x20
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#define COM_HW_CONSOLE 0x40
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#define COM_HW_KGDB 0x80
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#define RX_TTY_BLOCKED 0x01
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#define RX_TTY_OVERFLOWED 0x02
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#define RX_IBUF_BLOCKED 0x04
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#define RX_IBUF_OVERFLOWED 0x08
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#define RX_ANY_BLOCK 0x0f
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#define EPCOM_RING_SIZE 2048
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struct epcom_softc {
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device_t sc_dev;
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bus_addr_t sc_hwbase;
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bus_space_tag_t sc_iot;
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bus_space_handle_t sc_ioh;
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void *sc_si;
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struct tty *sc_tty;
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u_char *sc_rbuf, *sc_ebuf;
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u_char *sc_tba;
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u_int sc_tbc;
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u_char *volatile sc_rbget,
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*volatile sc_rbput;
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volatile u_int sc_rbavail;
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/* status flags */
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int sc_hwflags, sc_swflags;
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volatile u_int sc_rx_flags,
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sc_tx_busy,
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sc_tx_done,
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sc_tx_stopped,
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sc_st_check,
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sc_rx_ready;
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/* control registers */
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u_int sc_lcrlo;
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u_int sc_lcrmid;
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u_int sc_lcrhi;
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u_int sc_ctrl;
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/* power management hooks */
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int (*enable)(struct epcom_softc *);
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int (*disable)(struct epcom_softc *);
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int enabled;
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#ifdef RND_COM
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krndsource_t rnd_source;
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#endif
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};
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void epcom_attach_subr(struct epcom_softc *);
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int epcomintr(void* arg);
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int epcomcnattach(bus_space_tag_t, bus_addr_t, bus_space_handle_t,
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int, tcflag_t);
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#endif /* _EPCOMVAR_H_ */
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