1 /* $NetBSD: deq.c,v 1.12 2017/09/27 22:31:53 macallan 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 1.12 2017/09/27 22:31:53 macallan 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/deqvar.h> 48 49 static void deq_attach(device_t, device_t, void *); 50 static int deq_match(device_t, struct cfdata *, void *); 51 52 CFATTACH_DECL_NEW(deq, sizeof(struct deq_softc), 53 deq_match, deq_attach, NULL, NULL); 54 55 static const char * deq_compats[] = { 56 "deq", 57 "tas3004", 58 "pcm3052", 59 "cs8416", 60 "codec", 61 NULL 62 }; 63 64 int 65 deq_match(device_t parent, struct cfdata *cf, void *aux) 66 { 67 struct i2c_attach_args *ia = aux; 68 69 if (ia->ia_name) { 70 if (ia->ia_ncompat > 0) { 71 if (iic_compat_match(ia, deq_compats)) 72 return 1; 73 } 74 if (strcmp(ia->ia_name, "deq") == 0) 75 return 1; 76 } 77 return 0; 78 } 79 80 void 81 deq_attach(device_t parent, device_t self, void *aux) 82 { 83 struct deq_softc *sc = device_private(self); 84 struct i2c_attach_args *ia = aux; 85 char name[256]; 86 87 sc->sc_dev = self; 88 sc->sc_node = ia->ia_cookie; 89 sc->sc_parent = parent; 90 sc->sc_address = (ia->ia_addr & 0x7f); 91 sc->sc_i2c = ia->ia_tag; 92 if (OF_getprop(sc->sc_node, "compatible", name, 256) <= 0) { 93 /* deq has no 'compatible' on my iBook G4 */ 94 switch (sc->sc_address) { 95 case 0x35: 96 strcpy(name, "tas3004"); 97 break; 98 default: 99 strcpy(name, "unknown"); 100 } 101 } 102 aprint_normal(" Audio Codec (%s)\n", name); 103 } 104