1 /* $NetBSD: tx39uart.c,v 1.14 2008/04/28 20:23:22 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: tx39uart.c,v 1.14 2008/04/28 20:23:22 martin Exp $"); 34 35 #include "opt_tx39uart_debug.h" 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 41 #include <machine/bus.h> 42 #include <machine/intr.h> 43 44 #include <hpcmips/tx/tx39var.h> 45 #include <hpcmips/tx/tx39uartvar.h> 46 47 #include "locators.h" 48 49 int tx39uart_match(struct device *, struct cfdata *, void *); 50 void tx39uart_attach(struct device *, struct device *, void *); 51 int tx39uart_print(void *, const char *); 52 int tx39uart_search(struct device *, struct cfdata *, 53 const int *, void *); 54 55 struct tx39uart_softc { 56 struct device sc_dev; 57 tx_chipset_tag_t sc_tc; 58 int sc_enabled; 59 }; 60 61 CFATTACH_DECL(tx39uart, sizeof(struct tx39uart_softc), 62 tx39uart_match, tx39uart_attach, NULL, NULL); 63 64 int 65 tx39uart_match(struct device *parent, struct cfdata *cf, void *aux) 66 { 67 return ATTACH_LAST; 68 } 69 70 void 71 tx39uart_attach(struct device *parent, struct device *self, void *aux) 72 { 73 struct txsim_attach_args *ta = aux; 74 struct tx39uart_softc *sc = (void *)self; 75 tx_chipset_tag_t tc; 76 77 printf("\n"); 78 sc->sc_tc = tc = ta->ta_tc; 79 80 config_search_ia(tx39uart_search, self, "txcomif", tx39uart_print); 81 } 82 83 int 84 tx39uart_search(struct device *parent, struct cfdata *cf, 85 const int *ldesc, void *aux) 86 { 87 struct tx39uart_softc *sc = (void *)parent; 88 struct tx39uart_attach_args ua; 89 90 ua.ua_tc = sc->sc_tc; 91 ua.ua_slot = cf->cf_loc[TXCOMIFCF_SLOT]; 92 93 if (ua.ua_slot == TXCOMIFCF_SLOT_DEFAULT) { 94 printf("tx39uart_search: wildcarded slot, skipping\n"); 95 return 0; 96 } 97 98 if (!(sc->sc_enabled & (1 << ua.ua_slot)) && /* not attached slot */ 99 config_match(parent, cf, &ua)) { 100 config_attach(parent, cf, &ua, tx39uart_print); 101 sc->sc_enabled |= (1 << ua.ua_slot); 102 } 103 104 return 0; 105 } 106 107 int 108 tx39uart_print(void *aux, const char *pnp) 109 { 110 struct tx39uart_attach_args *ua = aux; 111 112 aprint_normal(" slot %d", ua->ua_slot); 113 114 return QUIET; 115 } 116