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      1 /* $NetBSD: iic_eumb.c,v 1.20 2022/07/22 23:43:24 thorpej Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2010,2011 Frank Wille.
      5  * All rights reserved.
      6  *
      7  * Written by Frank Wille for The NetBSD Project.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28  * POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 __KERNEL_RCSID(0, "$NetBSD: iic_eumb.c,v 1.20 2022/07/22 23:43:24 thorpej Exp $");
     33 
     34 #include <sys/param.h>
     35 #include <sys/device.h>
     36 
     37 #include <sys/bus.h>
     38 #include <dev/i2c/motoi2cvar.h>
     39 #include <sandpoint/sandpoint/eumbvar.h>
     40 
     41 static int  iic_eumb_match(device_t, cfdata_t, void *);
     42 static void iic_eumb_attach(device_t, device_t, void *);
     43 
     44 CFATTACH_DECL_NEW(iic_eumb, sizeof(struct motoi2c_softc),
     45     iic_eumb_match, iic_eumb_attach, NULL, NULL);
     46 
     47 static int found;
     48 
     49 static int
     50 iic_eumb_match(device_t parent, cfdata_t cf, void *aux)
     51 {
     52 
     53 	return found == 0;
     54 }
     55 
     56 static void
     57 iic_eumb_attach(device_t parent, device_t self, void *aux)
     58 {
     59 	struct motoi2c_softc *sc = device_private(self);
     60 	struct eumb_attach_args *eaa = aux;
     61 	bus_space_handle_t ioh;
     62 
     63 	sc->sc_dev = self;
     64 	found = 1;
     65 
     66 	aprint_naive("\n");
     67 	aprint_normal("\n");
     68 
     69 	/*
     70 	 * map EUMB registers and attach MI motoi2c with default settings
     71 	 */
     72 	bus_space_map(eaa->eumb_bt, 0x3000, 0x20, 0, &ioh);
     73 	sc->sc_iot = eaa->eumb_bt;
     74 	sc->sc_ioh = ioh;
     75 	motoi2c_attach(sc, NULL);
     76 }
     77