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tx39uart.c revision 1.4.2.2
      1  1.4.2.2  bouyer /*	$NetBSD: tx39uart.c,v 1.4.2.2 2000/11/20 20:47:35 bouyer Exp $ */
      2  1.4.2.2  bouyer 
      3  1.4.2.2  bouyer /*-
      4  1.4.2.2  bouyer  * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
      5  1.4.2.2  bouyer  * All rights reserved.
      6  1.4.2.2  bouyer  *
      7  1.4.2.2  bouyer  * This code is derived from software contributed to The NetBSD Foundation
      8  1.4.2.2  bouyer  * by UCHIYAMA Yasushi.
      9  1.4.2.2  bouyer  *
     10  1.4.2.2  bouyer  * Redistribution and use in source and binary forms, with or without
     11  1.4.2.2  bouyer  * modification, are permitted provided that the following conditions
     12  1.4.2.2  bouyer  * are met:
     13  1.4.2.2  bouyer  * 1. Redistributions of source code must retain the above copyright
     14  1.4.2.2  bouyer  *    notice, this list of conditions and the following disclaimer.
     15  1.4.2.2  bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.4.2.2  bouyer  *    notice, this list of conditions and the following disclaimer in the
     17  1.4.2.2  bouyer  *    documentation and/or other materials provided with the distribution.
     18  1.4.2.2  bouyer  * 3. All advertising materials mentioning features or use of this software
     19  1.4.2.2  bouyer  *    must display the following acknowledgement:
     20  1.4.2.2  bouyer  *        This product includes software developed by the NetBSD
     21  1.4.2.2  bouyer  *        Foundation, Inc. and its contributors.
     22  1.4.2.2  bouyer  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  1.4.2.2  bouyer  *    contributors may be used to endorse or promote products derived
     24  1.4.2.2  bouyer  *    from this software without specific prior written permission.
     25  1.4.2.2  bouyer  *
     26  1.4.2.2  bouyer  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  1.4.2.2  bouyer  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  1.4.2.2  bouyer  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  1.4.2.2  bouyer  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  1.4.2.2  bouyer  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  1.4.2.2  bouyer  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  1.4.2.2  bouyer  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  1.4.2.2  bouyer  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  1.4.2.2  bouyer  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  1.4.2.2  bouyer  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  1.4.2.2  bouyer  * POSSIBILITY OF SUCH DAMAGE.
     37  1.4.2.2  bouyer  */
     38  1.4.2.2  bouyer #include "opt_tx39_debug.h"
     39  1.4.2.2  bouyer #include "opt_tx39uartdebug.h"
     40  1.4.2.2  bouyer 
     41  1.4.2.2  bouyer #include <sys/param.h>
     42  1.4.2.2  bouyer #include <sys/systm.h>
     43  1.4.2.2  bouyer #include <sys/device.h>
     44  1.4.2.2  bouyer 
     45  1.4.2.2  bouyer #include <machine/bus.h>
     46  1.4.2.2  bouyer #include <machine/intr.h>
     47  1.4.2.2  bouyer 
     48  1.4.2.2  bouyer #include <hpcmips/tx/tx39var.h>
     49  1.4.2.2  bouyer #include <hpcmips/tx/tx39uartvar.h>
     50  1.4.2.2  bouyer 
     51  1.4.2.2  bouyer #include "locators.h"
     52  1.4.2.2  bouyer 
     53  1.4.2.2  bouyer int	tx39uart_match(struct device *, struct cfdata *, void *);
     54  1.4.2.2  bouyer void	tx39uart_attach(struct device *, struct device *, void *);
     55  1.4.2.2  bouyer int	tx39uart_print(void *, const char *);
     56  1.4.2.2  bouyer int	tx39uart_search(struct device *, struct cfdata *, void *);
     57  1.4.2.2  bouyer 
     58  1.4.2.2  bouyer struct tx39uart_softc {
     59  1.4.2.2  bouyer 	struct	device sc_dev;
     60  1.4.2.2  bouyer 	tx_chipset_tag_t sc_tc;
     61  1.4.2.2  bouyer 	int sc_enabled;
     62  1.4.2.2  bouyer };
     63  1.4.2.2  bouyer 
     64  1.4.2.2  bouyer struct cfattach tx39uart_ca = {
     65  1.4.2.2  bouyer 	sizeof(struct tx39uart_softc), tx39uart_match, tx39uart_attach
     66  1.4.2.2  bouyer };
     67  1.4.2.2  bouyer 
     68  1.4.2.2  bouyer int
     69  1.4.2.2  bouyer tx39uart_match(struct device *parent, struct cfdata *cf, void *aux)
     70  1.4.2.2  bouyer {
     71  1.4.2.2  bouyer 	return ATTACH_LAST;
     72  1.4.2.2  bouyer }
     73  1.4.2.2  bouyer 
     74  1.4.2.2  bouyer void
     75  1.4.2.2  bouyer tx39uart_attach(struct device *parent, struct device *self, void *aux)
     76  1.4.2.2  bouyer {
     77  1.4.2.2  bouyer 	struct txsim_attach_args *ta = aux;
     78  1.4.2.2  bouyer 	struct tx39uart_softc *sc = (void *)self;
     79  1.4.2.2  bouyer 	tx_chipset_tag_t tc;
     80  1.4.2.2  bouyer 
     81  1.4.2.2  bouyer 	printf("\n");
     82  1.4.2.2  bouyer 	sc->sc_tc = tc = ta->ta_tc;
     83  1.4.2.2  bouyer 
     84  1.4.2.2  bouyer 	config_search(tx39uart_search, self, tx39uart_print);
     85  1.4.2.2  bouyer }
     86  1.4.2.2  bouyer 
     87  1.4.2.2  bouyer int
     88  1.4.2.2  bouyer tx39uart_search(struct device *parent, struct cfdata *cf, void *aux)
     89  1.4.2.2  bouyer {
     90  1.4.2.2  bouyer 	struct tx39uart_softc *sc = (void *)parent;
     91  1.4.2.2  bouyer 	struct tx39uart_attach_args ua;
     92  1.4.2.2  bouyer 
     93  1.4.2.2  bouyer 	ua.ua_tc	= sc->sc_tc;
     94  1.4.2.2  bouyer 	ua.ua_slot	= cf->cf_loc[TXCOMIFCF_SLOT];
     95  1.4.2.2  bouyer 
     96  1.4.2.2  bouyer 	if (ua.ua_slot == TXCOMIFCF_SLOT_DEFAULT) {
     97  1.4.2.2  bouyer 		printf("tx39uart_search: wildcarded slot, skipping\n");
     98  1.4.2.2  bouyer 		return 0;
     99  1.4.2.2  bouyer 	}
    100  1.4.2.2  bouyer 
    101  1.4.2.2  bouyer 	if (!(sc->sc_enabled & (1 << ua.ua_slot)) && /* not attached slot */
    102  1.4.2.2  bouyer 	    (*cf->cf_attach->ca_match)(parent, cf, &ua)) {
    103  1.4.2.2  bouyer 		config_attach(parent, cf, &ua, tx39uart_print);
    104  1.4.2.2  bouyer 		sc->sc_enabled |= (1 << ua.ua_slot);
    105  1.4.2.2  bouyer 	}
    106  1.4.2.2  bouyer 
    107  1.4.2.2  bouyer 	return 0;
    108  1.4.2.2  bouyer }
    109  1.4.2.2  bouyer 
    110  1.4.2.2  bouyer int
    111  1.4.2.2  bouyer tx39uart_print(void *aux, const char *pnp)
    112  1.4.2.2  bouyer {
    113  1.4.2.2  bouyer 	struct tx39uart_attach_args *ua = aux;
    114  1.4.2.2  bouyer 
    115  1.4.2.2  bouyer 	printf(" slot %d", ua->ua_slot);
    116  1.4.2.2  bouyer 
    117  1.4.2.2  bouyer 	return QUIET;
    118  1.4.2.2  bouyer }
    119