1 /* $NetBSD: deq.c,v 1.17 2019/09/20 17:25:11 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 1.17 2019/09/20 17:25:11 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 struct device_compatible_entry compat_data[] = { 56 { "deq", 0 }, 57 { "tas3004", 0 }, 58 { "pcm3052", 0 }, 59 { "cs8416", 0 }, 60 { "codec", 0 }, 61 { NULL, 0 } 62 }; 63 64 int 65 deq_match(device_t parent, struct cfdata *cf, void *aux) 66 { 67 struct i2c_attach_args *ia = aux; 68 int match_result; 69 70 if (iic_use_direct_match(ia, cf, compat_data, &match_result)) 71 return match_result; 72 73 /* This driver is direct-config only. */ 74 75 return 0; 76 } 77 78 void 79 deq_attach(device_t parent, device_t self, void *aux) 80 { 81 struct deq_softc *sc = device_private(self); 82 struct i2c_attach_args *ia = aux; 83 char name[256]; 84 85 sc->sc_dev = self; 86 sc->sc_node = ia->ia_cookie; 87 sc->sc_parent = parent; 88 sc->sc_address = ia->ia_addr; 89 sc->sc_i2c = ia->ia_tag; 90 if (OF_getprop(sc->sc_node, "compatible", name, 256) <= 0) { 91 /* deq has no 'compatible' on my iBook G4 or Quicksilver */ 92 switch (sc->sc_address) { 93 case 0x35: 94 strcpy(name, "tas3004"); 95 break; 96 case 0x34: 97 strcpy(name, "tas3001"); 98 break; 99 default: 100 strcpy(name, "unknown"); 101 } 102 } 103 aprint_normal(" Audio Codec (%s)\n", name); 104 } 105