1 /* $OpenBSD: onyx.c,v 1.9 2008/10/29 00:04:14 jakemsr Exp $ */ 2 3 /*- 4 * Copyright (c) 2005 Tsubai Masanari. All rights reserved. 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 * http://focus.ti.com/docs/prod/folders/print/pcm3052.html 31 * 32 * Datasheet is available from 33 * http://focus.ti.com/docs/prod/folders/print/pcm3052a.html 34 */ 35 36 #include <sys/param.h> 37 #include <sys/audioio.h> 38 #include <sys/device.h> 39 #include <sys/systm.h> 40 41 #include <dev/audio_if.h> 42 #include <dev/ofw/openfirm.h> 43 #include <macppc/dev/dbdma.h> 44 45 #include <machine/autoconf.h> 46 47 #include <macppc/dev/i2svar.h> 48 #include <macppc/dev/kiicvar.h> 49 50 #ifdef ONYX_DEBUG 51 # define DPRINTF printf 52 #else 53 # define DPRINTF while (0) printf 54 #endif 55 56 /* XXX */ 57 #define PCM3052_I2C_ADDR 0x8c 58 59 /* PCM3052 registers */ 60 #define PCM3052_REG_LEFT_VOLUME 0x41 61 #define PCM3052_REG_RIGHT_VOLUME 0x42 62 63 /* XXX */ 64 #define onyx_softc i2s_softc 65 66 /* XXX */ 67 void kiic_setmode(struct kiic_softc *, u_int, u_int); 68 int kiic_write(struct device *, int, int, const void *, int); 69 70 int onyx_getdev(void *, struct audio_device *); 71 int onyx_match(struct device *, void *, void *); 72 void onyx_attach(struct device *, struct device *, void *); 73 void onyx_defer(struct device *); 74 void onyx_set_volume(struct onyx_softc *, int, int); 75 void onyx_get_default_params(void *, int, struct audio_params *); 76 77 struct cfattach onyx_ca = { 78 sizeof(struct onyx_softc), onyx_match, onyx_attach 79 }; 80 81 struct cfdriver onyx_cd = { 82 NULL, "onyx", DV_DULL 83 }; 84 85 struct audio_hw_if onyx_hw_if = { 86 i2s_open, 87 i2s_close, 88 NULL, 89 i2s_query_encoding, 90 i2s_set_params, 91 i2s_round_blocksize, 92 NULL, 93 NULL, 94 NULL, 95 NULL, 96 NULL, 97 i2s_halt_output, 98 i2s_halt_input, 99 NULL, 100 onyx_getdev, 101 NULL, 102 i2s_set_port, 103 i2s_get_port, 104 i2s_query_devinfo, 105 i2s_allocm, 106 NULL, 107 i2s_round_buffersize, 108 i2s_mappage, 109 i2s_get_props, 110 i2s_trigger_output, 111 i2s_trigger_input, 112 onyx_get_default_params 113 }; 114 115 struct audio_device onyx_device = { 116 "ONYX", 117 "", 118 "onyx" 119 }; 120 121 int 122 onyx_match(struct device *parent, void *match, void *aux) 123 { 124 struct confargs *ca = aux; 125 int soundbus, soundchip, soundcodec; 126 int32_t layout = 0; 127 128 if (strcmp(ca->ca_name, "i2s") != 0) 129 return (0); 130 131 if ((soundbus = OF_child(ca->ca_node)) == 0 || 132 (soundchip = OF_child(soundbus)) == 0) 133 return (0); 134 135 if (OF_getprop(soundchip, "platform-onyx-codec-ref", 136 &soundcodec, sizeof soundcodec) == sizeof soundcodec) 137 return (1); 138 139 /* 140 * Apple really messed up. First and second generation iMac 141 * G5 (PowerMac8,1 and PowerMac8,2) have a "deq" i2c device 142 * listed in the OF device tree, which is a telltale sign of 143 * snapper(4). But in reality that chip isn't there. So we 144 * match on "layout-id" instead. 145 */ 146 if (OF_getprop(soundchip, "layout-id", &layout, sizeof layout) && 147 (layout == 0x2d || layout == 0x56)) 148 return (1); 149 150 return (0); 151 } 152 153 void 154 onyx_attach(struct device *parent, struct device *self, void *aux) 155 { 156 struct onyx_softc *sc = (struct onyx_softc *)self; 157 158 sc->sc_setvolume = onyx_set_volume; 159 160 i2s_attach(parent, sc, aux); 161 config_defer(self, onyx_defer); 162 } 163 164 void 165 onyx_defer(struct device *dev) 166 { 167 struct onyx_softc *sc = (struct onyx_softc *)dev; 168 struct device *dv; 169 170 TAILQ_FOREACH(dv, &alldevs, dv_list) 171 if (strncmp(dv->dv_xname, "kiic", 4) == 0 && 172 strncmp(dv->dv_parent->dv_xname, "macobio", 7) == 0) 173 sc->sc_i2c = dv; 174 if (sc->sc_i2c == NULL) { 175 printf("%s: unable to find i2c\n", sc->sc_dev.dv_xname); 176 return; 177 } 178 179 /* XXX If i2c has failed to attach, what should we do? */ 180 181 audio_attach_mi(&onyx_hw_if, sc, &sc->sc_dev); 182 183 deq_reset(sc); 184 onyx_set_volume(sc, 192, 192); 185 } 186 187 int 188 onyx_getdev(void *h, struct audio_device *retp) 189 { 190 *retp = onyx_device; 191 return (0); 192 } 193 194 void 195 onyx_set_volume(struct onyx_softc *sc, int left, int right) 196 { 197 u_int8_t data; 198 199 sc->sc_vol_l = left; 200 sc->sc_vol_r = right; 201 202 kiic_setmode(sc->sc_i2c, I2C_STDSUBMODE, 0); 203 data = 128 + (left >> 1); 204 kiic_write(sc->sc_i2c, PCM3052_I2C_ADDR, 205 PCM3052_REG_LEFT_VOLUME, &data, 1); 206 data = 128 + (right >> 1); 207 kiic_write(sc->sc_i2c, PCM3052_I2C_ADDR, 208 PCM3052_REG_RIGHT_VOLUME, &data, 1); 209 } 210 211 void 212 onyx_get_default_params(void *addr, int mode, struct audio_params *params) 213 { 214 i2s_get_default_params(params); 215 } 216