1 /* $NetBSD: tx39uart.c,v 1.15 2012/10/27 17:17:54 chs 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 1.15 2012/10/27 17:17:54 chs 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(device_t, cfdata_t, void *); 50 void tx39uart_attach(device_t, device_t, void *); 51 int tx39uart_print(void *, const char *); 52 int tx39uart_search(device_t, cfdata_t, const int *, void *); 53 54 struct tx39uart_softc { 55 tx_chipset_tag_t sc_tc; 56 int sc_enabled; 57 }; 58 59 CFATTACH_DECL_NEW(tx39uart, sizeof(struct tx39uart_softc), 60 tx39uart_match, tx39uart_attach, NULL, NULL); 61 62 int 63 tx39uart_match(device_t parent, cfdata_t cf, void *aux) 64 { 65 return ATTACH_LAST; 66 } 67 68 void 69 tx39uart_attach(device_t parent, device_t self, void *aux) 70 { 71 struct txsim_attach_args *ta = aux; 72 struct tx39uart_softc *sc = device_private(self); 73 tx_chipset_tag_t tc; 74 75 printf("\n"); 76 sc->sc_tc = tc = ta->ta_tc; 77 78 config_search_ia(tx39uart_search, self, "txcomif", tx39uart_print); 79 } 80 81 int 82 tx39uart_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux) 83 { 84 struct tx39uart_softc *sc = device_private(parent); 85 struct tx39uart_attach_args ua; 86 87 ua.ua_tc = sc->sc_tc; 88 ua.ua_slot = cf->cf_loc[TXCOMIFCF_SLOT]; 89 90 if (ua.ua_slot == TXCOMIFCF_SLOT_DEFAULT) { 91 printf("tx39uart_search: wildcarded slot, skipping\n"); 92 return 0; 93 } 94 95 if (!(sc->sc_enabled & (1 << ua.ua_slot)) && /* not attached slot */ 96 config_match(parent, cf, &ua)) { 97 config_attach(parent, cf, &ua, tx39uart_print); 98 sc->sc_enabled |= (1 << ua.ua_slot); 99 } 100 101 return 0; 102 } 103 104 int 105 tx39uart_print(void *aux, const char *pnp) 106 { 107 struct tx39uart_attach_args *ua = aux; 108 109 aprint_normal(" slot %d", ua->ua_slot); 110 111 return QUIET; 112 } 113