1 /* $NetBSD: gftty_mainbus.c,v 1.2 2024/01/06 17:52:43 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2023, 2024 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 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: gftty_mainbus.c,v 1.2 2024/01/06 17:52:43 thorpej Exp $"); 34 35 #include <sys/types.h> 36 #include <sys/bus.h> 37 #include <sys/device.h> 38 #include <sys/intr.h> 39 #include <sys/systm.h> 40 41 #include <virt68k/dev/mainbusvar.h> 42 43 #include <dev/goldfish/gfttyvar.h> 44 45 static const struct device_compatible_entry compat_data[] = { 46 { .compat = "google,goldfish-tty" }, 47 DEVICE_COMPAT_EOL 48 }; 49 50 51 static int 52 gftty_mainbus_match(device_t parent, cfdata_t cf, void *aux) 53 { 54 struct mainbus_attach_args * const ma = aux; 55 56 return mainbus_compatible_match(ma, compat_data); 57 } 58 59 static void 60 gftty_mainbus_attach(device_t parent, device_t self, void *aux) 61 { 62 struct gftty_softc * const sc = device_private(self); 63 struct mainbus_attach_args * const ma = aux; 64 char strbuf[INTR_STRING_BUFSIZE]; 65 66 sc->sc_dev = self; 67 68 if (! gftty_is_console(sc)) { 69 bus_space_handle_t bsh; 70 71 if (bus_space_map(ma->ma_st, ma->ma_addr, ma->ma_size, 0, 72 &bsh) != 0) { 73 aprint_error(": couldn't map registers\n"); 74 return; 75 } 76 gftty_alloc_config(sc, ma->ma_st, bsh); 77 } 78 79 sc->sc_dmat = ma->ma_dmat; 80 81 gftty_attach(sc); 82 if (sc->sc_tty != NULL) { 83 /* Attach was successful. Set up interrupt. */ 84 sc->sc_ih = intr_establish(gftty_intr, sc, 85 ma->ma_irq, IPL_TTY, 0); 86 if (sc->sc_ih == NULL) { 87 aprint_error_dev(self, 88 "couldn't install interrupt handler\n"); 89 return; 90 } 91 aprint_normal_dev(self, "interrupting at %s\n", 92 intr_string(sc->sc_ih, strbuf, sizeof(strbuf))); 93 } 94 } 95 96 CFATTACH_DECL_NEW(gftty_mainbus, sizeof(struct gftty_softc), 97 gftty_mainbus_match, gftty_mainbus_attach, NULL, NULL); 98