1 /* $NetBSD: deq.c,v 1.8 2010/12/20 00:25:37 matt Exp $ */ 2 3 /*- 4 * Copyright (C) 2005 Michael Lorenz 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * a dummy device to attach to OF's deq node marking the TAS3004 audio mixer / 31 * equalizer chip, needed by snapper 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: deq.c,v 1.8 2010/12/20 00:25:37 matt Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/device.h> 41 #include <sys/malloc.h> 42 43 #include <dev/ofw/openfirm.h> 44 #include <dev/i2c/i2cvar.h> 45 46 #include <machine/autoconf.h> 47 #include <macppc/dev/ki2cvar.h> 48 #include <macppc/dev/deqvar.h> 49 50 static void deq_attach(device_t, device_t, void *); 51 static int deq_match(device_t, struct cfdata *, void *); 52 53 CFATTACH_DECL_NEW(deq, sizeof(struct deq_softc), 54 deq_match, deq_attach, NULL, NULL); 55 56 int 57 deq_match(device_t parent, struct cfdata *cf, void *aux) 58 { 59 struct ki2c_confargs *ka = aux; 60 char buf[32]; 61 62 if (strcmp(ka->ka_name, "deq") == 0) { 63 if (OF_getprop(ka->ka_node, "i2c-address", buf, sizeof(buf))) 64 return 1; 65 } else if (strcmp(ka->ka_name, "codec") == 0) { 66 if (OF_getprop(ka->ka_node, "compatible", buf, sizeof(buf))) 67 if (strcmp(buf, "tas3004") == 0) 68 return 1; 69 } 70 return 0; 71 } 72 73 void 74 deq_attach(device_t parent, device_t self, void *aux) 75 { 76 struct deq_softc *sc = device_private(self); 77 struct ki2c_confargs *ka = aux; 78 int node; 79 80 sc->sc_dev = self; 81 node = ka->ka_node; 82 sc->sc_node = node; 83 sc->sc_parent = parent; 84 sc->sc_address = ka->ka_addr & 0xfe; 85 sc->sc_i2c = ka->ka_tag; 86 aprint_normal(" Apple Digital Equalizer, addr 0x%x\n", sc->sc_address); 87 } 88