167 lines
4.9 KiB
C
167 lines
4.9 KiB
C
/* $NetBSD: comvar.h,v 1.51 2006/03/05 17:33:33 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1996 Christopher G. Demetriou. 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 Christopher G. Demetriou
|
|
* for the NetBSD Project.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*/
|
|
|
|
#include "rnd.h"
|
|
#include "opt_multiprocessor.h"
|
|
#include "opt_lockdebug.h"
|
|
#include "opt_com.h"
|
|
#include "opt_kgdb.h"
|
|
|
|
#if NRND > 0 && defined(RND_COM)
|
|
#include <sys/rnd.h>
|
|
#endif
|
|
|
|
#include <sys/callout.h>
|
|
#include <sys/timepps.h>
|
|
#include <sys/lock.h>
|
|
|
|
int comcnattach(bus_space_tag_t, bus_addr_t, int, int, int, tcflag_t);
|
|
|
|
#ifdef KGDB
|
|
int com_kgdb_attach(bus_space_tag_t, bus_addr_t, int, int, int, tcflag_t);
|
|
#endif
|
|
|
|
int com_is_console(bus_space_tag_t, bus_addr_t, bus_space_handle_t *);
|
|
|
|
/* Hardware flag masks */
|
|
#define COM_HW_NOIEN 0x01
|
|
#define COM_HW_FIFO 0x02
|
|
/* 0x04 free for use */
|
|
#define COM_HW_FLOW 0x08
|
|
#define COM_HW_DEV_OK 0x20
|
|
#define COM_HW_CONSOLE 0x40
|
|
#define COM_HW_KGDB 0x80
|
|
#define COM_HW_TXFIFO_DISABLE 0x100
|
|
#define COM_HW_NO_TXPRELOAD 0x200
|
|
|
|
/* Buffer size for character buffer */
|
|
#define COM_RING_SIZE 2048
|
|
|
|
struct com_softc {
|
|
struct device sc_dev;
|
|
void *sc_si;
|
|
struct tty *sc_tty;
|
|
|
|
struct callout sc_diag_callout;
|
|
|
|
bus_addr_t sc_iobase; /* XXX ISA-centric name */
|
|
int sc_frequency;
|
|
|
|
bus_space_tag_t sc_iot;
|
|
bus_space_handle_t sc_ioh;
|
|
bus_space_handle_t sc_hayespioh;
|
|
|
|
u_int sc_overflows,
|
|
sc_floods,
|
|
sc_errors;
|
|
|
|
int sc_hwflags,
|
|
sc_swflags;
|
|
u_int sc_fifolen;
|
|
|
|
u_int sc_r_hiwat,
|
|
sc_r_lowat;
|
|
u_char *volatile sc_rbget,
|
|
*volatile sc_rbput;
|
|
volatile u_int sc_rbavail;
|
|
u_char *sc_rbuf,
|
|
*sc_ebuf;
|
|
|
|
u_char *sc_tba;
|
|
u_int sc_tbc,
|
|
sc_heldtbc;
|
|
|
|
volatile u_char sc_rx_flags,
|
|
#define RX_TTY_BLOCKED 0x01
|
|
#define RX_TTY_OVERFLOWED 0x02
|
|
#define RX_IBUF_BLOCKED 0x04
|
|
#define RX_IBUF_OVERFLOWED 0x08
|
|
#define RX_ANY_BLOCK 0x0f
|
|
sc_tx_busy,
|
|
sc_tx_done,
|
|
sc_tx_stopped,
|
|
sc_st_check,
|
|
sc_rx_ready;
|
|
|
|
volatile u_char sc_heldchange;
|
|
volatile u_char sc_msr, sc_msr_delta, sc_msr_mask, sc_mcr,
|
|
sc_mcr_active, sc_lcr, sc_ier, sc_fifo, sc_dlbl, sc_dlbh, sc_efr;
|
|
u_char sc_mcr_dtr, sc_mcr_rts, sc_msr_cts, sc_msr_dcd;
|
|
|
|
#ifdef COM_HAYESP
|
|
u_char sc_prescaler;
|
|
#endif
|
|
|
|
/*
|
|
* There are a great many almost-ns16550-compatible UARTs out
|
|
* there, which have minor differences. The type field here
|
|
* lets us distinguish between them.
|
|
*/
|
|
int sc_type;
|
|
#define COM_TYPE_NORMAL 0 /* normal 16x50 */
|
|
#define COM_TYPE_HAYESP 1 /* Hayes ESP modem */
|
|
#define COM_TYPE_PXA2x0 2 /* Intel PXA2x0 processor built-in */
|
|
#define COM_TYPE_AU1x00 3 /* AMD/Alchemy Au1x000 proc. built-in */
|
|
|
|
/* power management hooks */
|
|
int (*enable)(struct com_softc *);
|
|
void (*disable)(struct com_softc *);
|
|
int enabled;
|
|
|
|
/* PPS signal on DCD, with or without inkernel clock disciplining */
|
|
u_char sc_ppsmask; /* pps signal mask */
|
|
u_char sc_ppsassert; /* pps leading edge */
|
|
u_char sc_ppsclear; /* pps trailing edge */
|
|
pps_info_t ppsinfo;
|
|
pps_params_t ppsparam;
|
|
|
|
#if NRND > 0 && defined(RND_COM)
|
|
rndsource_element_t rnd_source;
|
|
#endif
|
|
struct simplelock sc_lock;
|
|
};
|
|
|
|
int comprobe1(bus_space_tag_t, bus_space_handle_t);
|
|
int comintr(void *);
|
|
void com_attach_subr(struct com_softc *);
|
|
int com_detach(struct device *, int);
|
|
int com_activate(struct device *, enum devact);
|
|
|
|
#ifndef __HAVE_GENERIC_SOFT_INTERRUPTS
|
|
#ifdef __NO_SOFT_SERIAL_INTERRUPT
|
|
#define IPL_SERIAL IPL_TTY
|
|
#define splserial() spltty()
|
|
#define IPL_SOFTSERIAL IPL_TTY
|
|
#define splsoftserial() spltty()
|
|
#endif
|
|
#endif
|