1 /* $NetBSD: flipper.c,v 1.1 2012/11/08 18:30:21 rkujawa Exp $ */ 2 3 /*- 4 * Copyright (c) 2012 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Radoslaw Kujawa. 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 /* Driver for Individual Computers Delfina Flipper / Petsoff Delfina 1200. 33 * 34 * TODO: 35 * - linux-style /dev/dsp56k interface 36 * - audio 37 * - firmware 38 * - interrupts: caa->cp_intr_establish(dspintr, sc); 39 */ 40 41 #include <sys/cdefs.h> 42 43 #include <sys/param.h> 44 #include <sys/device.h> 45 46 #include <sys/bus.h> 47 48 #include <amiga/clockport/clockportvar.h> 49 50 #include <amiga/clockport/flipperreg.h> 51 #include <amiga/clockport/flippervar.h> 52 53 #define FLIPPER_DEBUG 1 54 55 static int flipper_probe(device_t, cfdata_t , void *); 56 static void flipper_attach(device_t, device_t, void *); 57 58 CFATTACH_DECL_NEW(flipper, sizeof(struct flipper_softc), 59 flipper_probe, flipper_attach, NULL, NULL); 60 61 static int 62 flipper_probe(device_t parent, cfdata_t cf, void *aux) 63 { 64 struct clockport_attach_args *caa = aux; 65 uint8_t delfinaver; 66 bus_space_handle_t ioh; 67 68 bus_space_map(caa->cp_iot, 0, FLIPPER_REGSIZE, 0, &ioh); 69 70 delfinaver = bus_space_read_1(caa->cp_iot, ioh, FLIPPER_HOSTCTL); 71 #ifdef FLIPPER_DEBUG 72 aprint_normal("flipper: hostctl probe read %x\n", delfinaver); 73 #endif /* FLIPPER_DEBUG */ 74 75 bus_space_unmap(caa->cp_iot, ioh, FLIPPER_REGSIZE); 76 77 if ((delfinaver == 0xB5) || (delfinaver == 0xB6)) 78 return 1; 79 80 return 0; 81 } 82 83 static void 84 flipper_attach(device_t parent, device_t self, void *aux) 85 { 86 struct flipper_softc *sc = device_private(self); 87 struct clockport_attach_args *caa = aux; 88 sc->sc_dev = self; 89 sc->sc_iot = caa->cp_iot; 90 91 if (bus_space_map(sc->sc_iot, 0, FLIPPER_REGSIZE, 0, &sc->sc_ioh)) { 92 aprint_normal("can't map the bus space\n"); 93 return; 94 } 95 96 sc->sc_delfinaver = bus_space_read_1(sc->sc_iot, sc->sc_ioh, 97 FLIPPER_HOSTCTL); 98 99 switch (sc->sc_delfinaver) { 100 case DELFINA_FLIPPER: 101 aprint_normal(": Individual Computers Delfina Flipper\n"); 102 break; 103 case DELFINA_1200: 104 aprint_normal(": Petsoff Delfina 1200\n"); 105 break; 106 default: 107 aprint_normal(": unknown model\n"); 108 return; 109 } 110 111 /* reset the board */ 112 bus_space_write_1(sc->sc_iot, sc->sc_ioh, FLIPPER_HOSTCTL, 113 FLIPPER_HOSTCTL_RESET | FLIPPER_HOSTCTL_IRQDIS); 114 delay(10000); 115 bus_space_write_1(sc->sc_iot, sc->sc_ioh, FLIPPER_HOSTCTL, 116 FLIPPER_HOSTCTL_IRQDIS); /* leave interrupts disabled for now */ 117 118 /* attach dsp56k, audio, etc. */ 119 } 120 121