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      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