1 /* $NetBSD: tx39uart.c,v 1.8 2002/10/02 05:26:51 thorpej 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 CFATTACH_DECL(tx39uart, sizeof(struct tx39uart_softc), 65 tx39uart_match, tx39uart_attach, NULL, NULL); 66 67 int 68 tx39uart_match(struct device *parent, struct cfdata *cf, void *aux) 69 { 70 return ATTACH_LAST; 71 } 72 73 void 74 tx39uart_attach(struct device *parent, struct device *self, void *aux) 75 { 76 struct txsim_attach_args *ta = aux; 77 struct tx39uart_softc *sc = (void *)self; 78 tx_chipset_tag_t tc; 79 80 printf("\n"); 81 sc->sc_tc = tc = ta->ta_tc; 82 83 config_search(tx39uart_search, self, tx39uart_print); 84 } 85 86 int 87 tx39uart_search(struct device *parent, struct cfdata *cf, void *aux) 88 { 89 struct tx39uart_softc *sc = (void *)parent; 90 struct tx39uart_attach_args ua; 91 92 ua.ua_tc = sc->sc_tc; 93 ua.ua_slot = cf->cf_loc[TXCOMIFCF_SLOT]; 94 95 if (ua.ua_slot == TXCOMIFCF_SLOT_DEFAULT) { 96 printf("tx39uart_search: wildcarded slot, skipping\n"); 97 return 0; 98 } 99 100 if (!(sc->sc_enabled & (1 << ua.ua_slot)) && /* not attached slot */ 101 config_match(parent, cf, &ua)) { 102 config_attach(parent, cf, &ua, tx39uart_print); 103 sc->sc_enabled |= (1 << ua.ua_slot); 104 } 105 106 return 0; 107 } 108 109 int 110 tx39uart_print(void *aux, const char *pnp) 111 { 112 struct tx39uart_attach_args *ua = aux; 113 114 printf(" slot %d", ua->ua_slot); 115 116 return QUIET; 117 } 118