1 /* $NetBSD: tx39uart.c,v 1.5 2002/01/29 18:53:18 uch Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include "opt_tx39uart_debug.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/device.h> 44 45 #include <machine/bus.h> 46 #include <machine/intr.h> 47 48 #include <hpcmips/tx/tx39var.h> 49 #include <hpcmips/tx/tx39uartvar.h> 50 51 #include "locators.h" 52 53 int tx39uart_match(struct device *, struct cfdata *, void *); 54 void tx39uart_attach(struct device *, struct device *, void *); 55 int tx39uart_print(void *, const char *); 56 int tx39uart_search(struct device *, struct cfdata *, void *); 57 58 struct tx39uart_softc { 59 struct device sc_dev; 60 tx_chipset_tag_t sc_tc; 61 int sc_enabled; 62 }; 63 64 struct cfattach tx39uart_ca = { 65 sizeof(struct tx39uart_softc), tx39uart_match, tx39uart_attach 66 }; 67 68 int 69 tx39uart_match(struct device *parent, struct cfdata *cf, void *aux) 70 { 71 return ATTACH_LAST; 72 } 73 74 void 75 tx39uart_attach(struct device *parent, struct device *self, void *aux) 76 { 77 struct txsim_attach_args *ta = aux; 78 struct tx39uart_softc *sc = (void *)self; 79 tx_chipset_tag_t tc; 80 81 printf("\n"); 82 sc->sc_tc = tc = ta->ta_tc; 83 84 config_search(tx39uart_search, self, tx39uart_print); 85 } 86 87 int 88 tx39uart_search(struct device *parent, struct cfdata *cf, void *aux) 89 { 90 struct tx39uart_softc *sc = (void *)parent; 91 struct tx39uart_attach_args ua; 92 93 ua.ua_tc = sc->sc_tc; 94 ua.ua_slot = cf->cf_loc[TXCOMIFCF_SLOT]; 95 96 if (ua.ua_slot == TXCOMIFCF_SLOT_DEFAULT) { 97 printf("tx39uart_search: wildcarded slot, skipping\n"); 98 return 0; 99 } 100 101 if (!(sc->sc_enabled & (1 << ua.ua_slot)) && /* not attached slot */ 102 (*cf->cf_attach->ca_match)(parent, cf, &ua)) { 103 config_attach(parent, cf, &ua, tx39uart_print); 104 sc->sc_enabled |= (1 << ua.ua_slot); 105 } 106 107 return 0; 108 } 109 110 int 111 tx39uart_print(void *aux, const char *pnp) 112 { 113 struct tx39uart_attach_args *ua = aux; 114 115 printf(" slot %d", ua->ua_slot); 116 117 return QUIET; 118 } 119