IABSD.fr/src/sys/dev/puc/com_puc.c

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• Author : jsg
  Date : 2021-03-05 13:20:19
  Hash : 42b4ad6c
  Message : ansi

• sys/dev/puc/com_puc.c

• /*	$OpenBSD: com_puc.c,v 1.26 2021/03/05 13:20:19 jsg Exp $	*/
  
  /*
   * Copyright (c) 1997 - 1999, Jason Downs.  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. Neither the name(s) of the author(s) nor the name OpenBSD
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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(S) 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 <sys/param.h>
  #include <sys/systm.h>
  #include <sys/ioctl.h>
  #include <sys/selinfo.h>
  #include <sys/tty.h>
  #include <sys/conf.h>
  #include <sys/uio.h>
  #include <sys/kernel.h>
  #include <sys/syslog.h>
  #include <sys/device.h>
  
  #include <machine/intr.h>
  #include <machine/bus.h>
  
  #include <dev/pci/pucvar.h>
  
  #include "com.h"
  
  #include <dev/ic/comreg.h>
  #include <dev/ic/comvar.h>
  #include <dev/ic/ns16550reg.h>
  
  #define	com_lcr		com_cfcr
  
  int	com_puc_match(struct device *, void *, void *);
  void	com_puc_attach(struct device *, struct device *, void *);
  int	com_puc_detach(struct device *, int);
  
  struct cfattach com_puc_ca = {
  	sizeof(struct com_softc), com_puc_match,
  	com_puc_attach, com_puc_detach, com_activate
  };
  
  int
  com_puc_match(struct device *parent, void *match, void *aux)
  {
  	struct puc_attach_args *pa = aux;
  
  	if (PUC_IS_COM(pa->type))
  		return(1);
  
  	return(0);
  }
  
  void
  com_puc_attach(struct device *parent, struct device *self, void *aux)
  {
  	struct com_softc *sc = (void *)self;
  	struct puc_attach_args *pa = aux;
  	const char *intrstr;
  	int i;
  
  	/* Grab a PCI interrupt. */
  	intrstr = pa->intr_string(pa);
  	sc->sc_ih = pa->intr_establish(pa, IPL_TTY, comintr, sc,
  	    sc->sc_dev.dv_xname);
  	if (sc->sc_ih == NULL) {
  		printf(": couldn't establish interrupt");
  		if (intrstr != NULL)
  			printf(" at %s", intrstr);
  		printf("\n");
  		return;
  	}
  	printf(" %s", intrstr);
  
  	sc->sc_iot = pa->t;
  	sc->sc_ioh = pa->h;
  	sc->sc_iobase = pa->a;
  
  	sc->sc_frequency = COM_FREQ;
  
  	for (i = 0; i < nitems(puc_port_types); i++)
  		if (puc_port_types[i].type == pa->type) {
  			sc->sc_frequency = puc_port_types[i].freq;
  			break;
  		}
  
  	if (pa->type == PUC_PORT_COM_XR17V35X)
  		sc->sc_uarttype = COM_UART_XR17V35X;
  
  	com_attach_subr(sc);
  }
  
  int
  com_puc_detach(struct device *self, int flags)
  {
  	return com_detach(self, flags);
  }