Annotation of sys/arch/macppc/dev/onyx.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: onyx.c,v 1.7 2007/04/23 16:27:20 deraadt 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:
! 76: struct cfattach onyx_ca = {
! 77: sizeof(struct onyx_softc), onyx_match, onyx_attach
! 78: };
! 79:
! 80: struct cfdriver onyx_cd = {
! 81: NULL, "onyx", DV_DULL
! 82: };
! 83:
! 84: struct audio_hw_if onyx_hw_if = {
! 85: i2s_open,
! 86: i2s_close,
! 87: NULL,
! 88: i2s_query_encoding,
! 89: i2s_set_params,
! 90: i2s_round_blocksize,
! 91: NULL,
! 92: NULL,
! 93: NULL,
! 94: NULL,
! 95: NULL,
! 96: i2s_halt_output,
! 97: i2s_halt_input,
! 98: NULL,
! 99: onyx_getdev,
! 100: NULL,
! 101: i2s_set_port,
! 102: i2s_get_port,
! 103: i2s_query_devinfo,
! 104: i2s_allocm,
! 105: NULL,
! 106: i2s_round_buffersize,
! 107: i2s_mappage,
! 108: i2s_get_props,
! 109: i2s_trigger_output,
! 110: i2s_trigger_input,
! 111: };
! 112:
! 113: struct audio_device onyx_device = {
! 114: "ONYX",
! 115: "",
! 116: "onyx"
! 117: };
! 118:
! 119: int
! 120: onyx_match(struct device *parent, void *match, void *aux)
! 121: {
! 122: struct confargs *ca = aux;
! 123: int soundbus, soundchip, soundcodec;
! 124: int32_t layout = 0;
! 125:
! 126: if (strcmp(ca->ca_name, "i2s") != 0)
! 127: return (0);
! 128:
! 129: if ((soundbus = OF_child(ca->ca_node)) == 0 ||
! 130: (soundchip = OF_child(soundbus)) == 0)
! 131: return (0);
! 132:
! 133: if (OF_getprop(soundchip, "platform-onyx-codec-ref",
! 134: &soundcodec, sizeof soundcodec) == sizeof soundcodec)
! 135: return (1);
! 136:
! 137: /*
! 138: * Apple really messed up. First and second generation iMac
! 139: * G5 (PowerMac8,1 and PowerMac8,2) have a "deq" i2c device
! 140: * listed in the OF device tree, which is a telltale sign of
! 141: * snapper(4). But in reality that chip isn't there. So we
! 142: * match on "layout-id" instead.
! 143: */
! 144: if (OF_getprop(soundchip, "layout-id", &layout, sizeof layout) &&
! 145: (layout == 0x2d || layout == 0x56))
! 146: return (1);
! 147:
! 148: return (0);
! 149: }
! 150:
! 151: void
! 152: onyx_attach(struct device *parent, struct device *self, void *aux)
! 153: {
! 154: struct onyx_softc *sc = (struct onyx_softc *)self;
! 155:
! 156: sc->sc_setvolume = onyx_set_volume;
! 157:
! 158: i2s_attach(parent, sc, aux);
! 159: config_defer(self, onyx_defer);
! 160: }
! 161:
! 162: void
! 163: onyx_defer(struct device *dev)
! 164: {
! 165: struct onyx_softc *sc = (struct onyx_softc *)dev;
! 166: struct device *dv;
! 167:
! 168: TAILQ_FOREACH(dv, &alldevs, dv_list)
! 169: if (strncmp(dv->dv_xname, "kiic", 4) == 0 &&
! 170: strncmp(dv->dv_parent->dv_xname, "macobio", 7) == 0)
! 171: sc->sc_i2c = dv;
! 172: if (sc->sc_i2c == NULL) {
! 173: printf("%s: unable to find i2c\n", sc->sc_dev.dv_xname);
! 174: return;
! 175: }
! 176:
! 177: /* XXX If i2c has failed to attach, what should we do? */
! 178:
! 179: audio_attach_mi(&onyx_hw_if, sc, &sc->sc_dev);
! 180:
! 181: deq_reset(sc);
! 182: onyx_set_volume(sc, 192, 192);
! 183: }
! 184:
! 185: int
! 186: onyx_getdev(void *h, struct audio_device *retp)
! 187: {
! 188: *retp = onyx_device;
! 189: return (0);
! 190: }
! 191:
! 192: void
! 193: onyx_set_volume(struct onyx_softc *sc, int left, int right)
! 194: {
! 195: u_int8_t data;
! 196:
! 197: sc->sc_vol_l = left;
! 198: sc->sc_vol_r = right;
! 199:
! 200: kiic_setmode(sc->sc_i2c, I2C_STDSUBMODE, 0);
! 201: data = 128 + (left >> 1);
! 202: kiic_write(sc->sc_i2c, PCM3052_I2C_ADDR,
! 203: PCM3052_REG_LEFT_VOLUME, &data, 1);
! 204: data = 128 + (right >> 1);
! 205: kiic_write(sc->sc_i2c, PCM3052_I2C_ADDR,
! 206: PCM3052_REG_RIGHT_VOLUME, &data, 1);
! 207: }
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