1 /* $OpenBSD: onyx.c,v 1.12 2016/09/19 06:46:43 ratchov 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_match(struct device *, void *, void *); 71 void onyx_attach(struct device *, struct device *, void *); 72 void onyx_defer(struct device *); 73 void onyx_set_volume(struct onyx_softc *, int, int); 74 75 struct cfattach onyx_ca = { 76 sizeof(struct onyx_softc), onyx_match, onyx_attach 77 }; 78 79 struct cfdriver onyx_cd = { 80 NULL, "onyx", DV_DULL 81 }; 82 83 struct audio_hw_if onyx_hw_if = { 84 i2s_open, 85 i2s_close, 86 i2s_set_params, 87 i2s_round_blocksize, 88 NULL, 89 NULL, 90 NULL, 91 NULL, 92 NULL, 93 i2s_halt_output, 94 i2s_halt_input, 95 NULL, 96 NULL, 97 i2s_set_port, 98 i2s_get_port, 99 i2s_query_devinfo, 100 i2s_allocm, 101 NULL, 102 i2s_round_buffersize, 103 i2s_get_props, 104 i2s_trigger_output, 105 i2s_trigger_input 106 }; 107 108 int 109 onyx_match(struct device *parent, void *match, void *aux) 110 { 111 struct confargs *ca = aux; 112 int soundbus, soundchip, soundcodec; 113 int32_t layout = 0; 114 115 if (strcmp(ca->ca_name, "i2s") != 0) 116 return (0); 117 118 if ((soundbus = OF_child(ca->ca_node)) == 0 || 119 (soundchip = OF_child(soundbus)) == 0) 120 return (0); 121 122 if (OF_getprop(soundchip, "platform-onyx-codec-ref", 123 &soundcodec, sizeof soundcodec) == sizeof soundcodec) 124 return (1); 125 126 /* 127 * Apple really messed up. First and second generation iMac 128 * G5 (PowerMac8,1 and PowerMac8,2) have a "deq" i2c device 129 * listed in the OF device tree, which is a telltale sign of 130 * snapper(4). But in reality that chip isn't there. So we 131 * match on "layout-id" instead. 132 */ 133 if (OF_getprop(soundchip, "layout-id", &layout, sizeof layout) && 134 (layout == 0x2d || layout == 0x56)) 135 return (1); 136 137 return (0); 138 } 139 140 void 141 onyx_attach(struct device *parent, struct device *self, void *aux) 142 { 143 struct onyx_softc *sc = (struct onyx_softc *)self; 144 145 sc->sc_setvolume = onyx_set_volume; 146 147 i2s_attach(parent, sc, aux); 148 config_defer(self, onyx_defer); 149 } 150 151 void 152 onyx_defer(struct device *dev) 153 { 154 struct onyx_softc *sc = (struct onyx_softc *)dev; 155 struct device *dv; 156 157 TAILQ_FOREACH(dv, &alldevs, dv_list) 158 if (strcmp(dv->dv_cfdata->cf_driver->cd_name, "kiic") == 0 && 159 strcmp(dv->dv_parent->dv_cfdata->cf_driver->cd_name, "macobio") == 0) 160 sc->sc_i2c = dv; 161 if (sc->sc_i2c == NULL) { 162 printf("%s: unable to find i2c\n", sc->sc_dev.dv_xname); 163 return; 164 } 165 166 /* XXX If i2c has failed to attach, what should we do? */ 167 168 audio_attach_mi(&onyx_hw_if, sc, &sc->sc_dev); 169 170 deq_reset(sc); 171 onyx_set_volume(sc, 192, 192); 172 } 173 174 void 175 onyx_set_volume(struct onyx_softc *sc, int left, int right) 176 { 177 u_int8_t data; 178 179 sc->sc_vol_l = left; 180 sc->sc_vol_r = right; 181 182 kiic_setmode(sc->sc_i2c, I2C_STDSUBMODE, 0); 183 data = 128 + (left >> 1); 184 kiic_write(sc->sc_i2c, PCM3052_I2C_ADDR, 185 PCM3052_REG_LEFT_VOLUME, &data, 1); 186 data = 128 + (right >> 1); 187 kiic_write(sc->sc_i2c, PCM3052_I2C_ADDR, 188 PCM3052_REG_RIGHT_VOLUME, &data, 1); 189 } 190