/* $OpenBSD: mavb.c,v 1.11 2009/11/18 21:13:17 jakemsr Exp $ */ /* * Copyright (c) 2005 Mark Kettenis * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #undef MAVB_DEBUG #ifdef MAVB_DEBUG #define DPRINTF(l,x) do { if (mavb_debug & (l)) printf x; } while (0) #define MAVB_DEBUG_INTR 0x0100 int mavb_debug = ~MAVB_DEBUG_INTR; #else #define DPRINTF(l,x) /* nothing */ #endif /* Repeat delays for volume buttons. */ #define MAVB_VOLUME_BUTTON_REPEAT_DEL1 400 /* 400ms to start repeating */ #define MAVB_VOLUME_BUTTON_REPEAT_DELN 100 /* 100ms between repeats */ /* XXX We need access to some of the MACE ISA registers. */ #define MAVB_ISA_NREGS 0x20 #define MAVB_ISA_RING_SIZE 0x4000 /* Mace ISA DMA ring size. */ #define MAVB_CHAN_RING_SIZE 0x1000 /* DMA buffer size per channel. */ #define MAVB_CHAN_INTR_SIZE 0x0800 /* Interrupt on 50% buffer transfer. */ #define MAVB_CHAN_CHUNK_SIZE 0x0400 /* Move data in 25% buffer chunks. */ /* * AD1843 Mixer. */ enum { AD1843_RECORD_CLASS, AD1843_ADC_SOURCE, /* ADC Source Select */ AD1843_ADC_GAIN, /* ADC Input Gain */ AD1843_ADC_MIC_GAIN, /* ADC Mic Input Gain */ AD1843_INPUT_CLASS, AD1843_DAC1_GAIN, /* DAC1 Analog/Digital Gain/Attenuation */ AD1843_DAC1_MUTE, /* DAC1 Analog Mute */ AD1843_DAC2_GAIN, /* DAC2 Mix Gain */ AD1843_AUX1_GAIN, /* Auxilliary 1 Mix Gain */ AD1843_AUX2_GAIN, /* Auxilliary 2 Mix Gain */ AD1843_AUX3_GAIN, /* Auxilliary 3 Mix Gain */ AD1843_MIC_GAIN, /* Microphone Mix Gain */ AD1843_MONO_GAIN, /* Mono Mix Gain */ AD1843_DAC2_MUTE, /* DAC2 Mix Mute */ AD1843_AUX1_MUTE, /* Auxilliary 1 Mix Mute */ AD1843_AUX2_MUTE, /* Auxilliary 2 Mix Mute */ AD1843_AUX3_MUTE, /* Auxilliary 3 Mix Mute */ AD1843_MIC_MUTE, /* Microphone Mix Mute */ AD1843_MONO_MUTE, /* Mono Mix Mute */ AD1843_SUM_MUTE, /* Sum Mute */ AD1843_OUTPUT_CLASS, AD1843_MNO_MUTE, /* Mono Output Mute */ AD1843_HPO_MUTE /* Headphone Output Mute */ }; /* ADC Source Select. The order matches the hardware bits. */ const char *ad1843_source[] = { AudioNline, AudioNmicrophone, AudioNaux "1", AudioNaux "2", AudioNaux "3", AudioNmono, AudioNdac "1", AudioNdac "2" }; /* Mix Control. The order matches the hardware register numbering. */ const char *ad1843_input[] = { AudioNdac "2", /* AD1843_DAC2__TO_MIXER */ AudioNaux "1", AudioNaux "2", AudioNaux "3", AudioNmicrophone, AudioNmono /* AD1843_MISC_SETTINGS */ }; struct mavb_chan { caddr_t hw_start; caddr_t sw_start; caddr_t sw_end; caddr_t sw_cur; void (*intr)(void *); void *intrarg; u_long rate; u_int format; int blksize; }; struct mavb_softc { struct device sc_dev; bus_space_tag_t sc_st; bus_space_handle_t sc_sh; bus_dma_tag_t sc_dmat; bus_dmamap_t sc_dmamap; /* XXX We need access to some of the MACE ISA registers. */ bus_space_handle_t sc_isash; caddr_t sc_ring; struct mavb_chan play; struct mavb_chan rec; struct timeout sc_volume_button_to; }; typedef u_long ad1843_addr_t; u_int16_t ad1843_reg_read(struct mavb_softc *, ad1843_addr_t); u_int16_t ad1843_reg_write(struct mavb_softc *, ad1843_addr_t, u_int16_t); void ad1843_dump_regs(struct mavb_softc *); int mavb_match(struct device *, void *, void *); void mavb_attach(struct device *, struct device *, void *); struct cfattach mavb_ca = { sizeof(struct mavb_softc), mavb_match, mavb_attach }; struct cfdriver mavb_cd = { NULL, "mavb", DV_DULL }; int mavb_open(void *, int); void mavb_close(void *); int mavb_query_encoding(void *, struct audio_encoding *); int mavb_set_params(void *, int, int, struct audio_params *, struct audio_params *); int mavb_round_blocksize(void *hdl, int bs); int mavb_halt_output(void *); int mavb_halt_input(void *); int mavb_getdev(void *, struct audio_device *); int mavb_set_port(void *, struct mixer_ctrl *); int mavb_get_port(void *, struct mixer_ctrl *); int mavb_query_devinfo(void *, struct mixer_devinfo *); int mavb_get_props(void *); int mavb_trigger_output(void *, void *, void *, int, void (*)(void *), void *, struct audio_params *); int mavb_trigger_input(void *, void *, void *, int, void (*)(void *), void *, struct audio_params *); void mavb_get_default_params(void *, int, struct audio_params *); struct audio_hw_if mavb_sa_hw_if = { mavb_open, mavb_close, 0, mavb_query_encoding, mavb_set_params, mavb_round_blocksize, 0, 0, 0, 0, 0, mavb_halt_output, mavb_halt_input, 0, mavb_getdev, 0, mavb_set_port, mavb_get_port, mavb_query_devinfo, 0, 0, 0, 0, mavb_get_props, mavb_trigger_output, mavb_trigger_input, mavb_get_default_params }; struct audio_device mavb_device = { "A3", "", "mavb" }; int mavb_open(void *hdl, int flags) { return (0); } void mavb_close(void *hdl) { } int mavb_query_encoding(void *hdl, struct audio_encoding *ae) { switch (ae->index) { case 0: /* 8-bit Unsigned Linear PCM. */ strlcpy(ae->name, AudioEulinear, sizeof ae->name); ae->encoding = AUDIO_ENCODING_ULINEAR; ae->precision = 8; ae->flags = 0; break; case 1: /* 16-bit Signed Linear PCM. */ strlcpy(ae->name, AudioEslinear_be, sizeof ae->name); ae->encoding = AUDIO_ENCODING_SLINEAR_BE; ae->precision = 16; ae->flags = 0; break; case 2: /* 8-bit mu-Law Companded. */ strlcpy(ae->name, AudioEmulaw, sizeof ae->name); ae->encoding = AUDIO_ENCODING_ULAW; ae->precision = 8; ae->flags = 0; break; case 3: /* 8-bit A-Law Companded. */ strlcpy(ae->name, AudioEalaw, sizeof ae->name); ae->encoding = AUDIO_ENCODING_ALAW; ae->precision = 8; ae->flags = 0; break; default: return (EINVAL); } return (0); } /* * For some reason SGI has decided to standardize their sound hardware * interfaces on 24-bit PCM even though the AD1843 codec used in the * Moosehead A/V Board only supports 16-bit and 8-bit formats. * Therefore we must convert everything to 24-bit samples only to have * the MACE hardware convert them back into 16-bit samples again. To * complicate matters further, the 24-bit samples are embedded 32-bit * integers. The 8-bit and 16-bit samples are first converted into * 24-bit samples by padding them to the right with zeroes. Then they * are sign-extended into 32-bit integers. This conversion is * conveniently done through the software encoding layer of the high * level audio driver by using the functions below. Conversion of * mu-law and A-law formats is done by the hardware. */ static void linear16_to_linear24_be(void *hdl, u_char *p, int cc) { u_char *q = p; p += cc; q += cc * 2; while ((cc -= 2) >= 0) { q -= 4; q[3] = 0; q[2] = *--p; q[1] = *--p; q[0] = (*p & 0x80) ? 0xff : 0; } } static void linear24_to_linear16_be(void *hdl, u_char *p, int cc) { u_char *q = p; while ((cc -= 4) >= 0) { *q++ = p[1]; *q++ = p[2]; p += 4; } } static void ulinear8_to_ulinear24_be(void *hdl, u_char *p, int cc) { u_char *q = p; p += cc; q += cc * 4; while (--cc >= 0) { q -= 4; q[3] = 0; q[2] = 0; q[1] = *--p; q[0] = (*p & 0x80) ? 0xff : 0; } } static void ulinear24_to_ulinear8_be(void *hdl, u_char *p, int cc) { u_char *q = p; while ((cc -= 4) >= 0) { *q++ = p[1]; p += 4; } } static void linear16_to_linear24_be_mts(void *hdl, u_char *p, int cc) { u_char *q = p; p += cc; q += cc * 4; while ((cc -= 2) >= 0) { q -= 8; q[3] = q[7] = 0; q[2] = q[6] = *--p; q[1] = q[5] = *--p; q[0] = q[4] = (*p & 0x80) ? 0xff : 0; } } static void ulinear8_to_ulinear24_be_mts(void *hdl, u_char *p, int cc) { u_char *q = p; p += cc; q += cc * 8; while (--cc >= 0) { q -= 8; q[3] = q[7] = 0; q[2] = q[6] = 0; q[1] = q[5] = *--p; q[0] = q[4] = (*p & 0x80) ? 0xff : 0; } } void mavb_get_default_params(void *hdl, int mode, struct audio_params *p) { p->sample_rate = 48000; p->encoding = AUDIO_ENCODING_SLINEAR_BE; p->precision = 16; p->channels = 2; p->factor = 2; if (mode == AUMODE_PLAY) p->sw_code = linear16_to_linear24_be; else p->sw_code = linear24_to_linear16_be; } static int mavb_set_play_rate(struct mavb_softc *sc, u_long sample_rate) { if (sample_rate < 4000 || sample_rate > 48000) return (EINVAL); if (sc->play.rate != sample_rate) { ad1843_reg_write(sc, AD1843_CLOCK2_SAMPLE_RATE, sample_rate); sc->play.rate = sample_rate; } return (0); } static int mavb_set_rec_rate(struct mavb_softc *sc, u_long sample_rate) { if (sample_rate < 4000 || sample_rate > 48000) return (EINVAL); if (sc->rec.rate != sample_rate) { ad1843_reg_write(sc, AD1843_CLOCK1_SAMPLE_RATE, sample_rate); sc->rec.rate = sample_rate; } return (0); } static int mavb_get_format(u_int encoding, u_int *format) { switch(encoding) { case AUDIO_ENCODING_ULINEAR_BE: *format = AD1843_PCM8; break; case AUDIO_ENCODING_SLINEAR_BE: *format = AD1843_PCM16; break; case AUDIO_ENCODING_ULAW: *format = AD1843_ULAW; break; case AUDIO_ENCODING_ALAW: *format = AD1843_ALAW; break; default: return (EINVAL); } return (0); } static int mavb_set_play_format(struct mavb_softc *sc, u_int encoding) { u_int16_t value; u_int format; int err; err = mavb_get_format(encoding, &format); if (err) return (err); if (sc->play.format != format) { value = ad1843_reg_read(sc, AD1843_SERIAL_INTERFACE); value &= ~AD1843_DA1F_MASK; value |= (format << AD1843_DA1F_SHIFT); ad1843_reg_write(sc, AD1843_SERIAL_INTERFACE, value); sc->play.format = format; } return (0); } static int mavb_set_rec_format(struct mavb_softc *sc, u_int encoding) { u_int16_t value; u_int format; int err; err = mavb_get_format(encoding, &format); if (err) return (err); if (sc->rec.format != format) { value = ad1843_reg_read(sc, AD1843_SERIAL_INTERFACE); value &= ~(AD1843_ADRF_MASK | AD1843_ADLF_MASK); value |= (format << AD1843_ADRF_SHIFT) | (format << AD1843_ADLF_SHIFT); ad1843_reg_write(sc, AD1843_SERIAL_INTERFACE, value); sc->rec.format = format; } return (0); } int mavb_set_params(void *hdl, int setmode, int usemode, struct audio_params *play, struct audio_params *rec) { struct mavb_softc *sc = (struct mavb_softc *)hdl; int error; DPRINTF(1, ("%s: mavb_set_params: sample=%ld precision=%d " "channels=%d\n", sc->sc_dev.dv_xname, play->sample_rate, play->precision, play->channels)); if (setmode & AUMODE_PLAY) { switch (play->encoding) { case AUDIO_ENCODING_ULAW: case AUDIO_ENCODING_ALAW: case AUDIO_ENCODING_ULINEAR_BE: if (play->precision != 8) return (EINVAL); switch (play->channels) { case 1: play->factor = 8; play->sw_code = ulinear8_to_ulinear24_be_mts; break; case 2: play->factor = 4; play->sw_code = ulinear8_to_ulinear24_be; break; default: return (EINVAL); } break; case AUDIO_ENCODING_SLINEAR_BE: if (play->precision == 16) { switch (play->channels) { case 1: play->factor = 4; play->sw_code = linear16_to_linear24_be_mts; break; case 2: play->factor = 2; play->sw_code = linear16_to_linear24_be; break; default: return (EINVAL); } } else { return (EINVAL); } break; default: return (EINVAL); } error = mavb_set_play_rate(sc, play->sample_rate); if (error) return (error); error = mavb_set_play_format(sc, play->encoding); if (error) return (error); } if (setmode & AUMODE_RECORD) { switch (rec->encoding) { case AUDIO_ENCODING_ULAW: case AUDIO_ENCODING_ALAW: case AUDIO_ENCODING_ULINEAR_BE: if (rec->precision != 8) return (EINVAL); rec->factor = 4; rec->sw_code = ulinear24_to_ulinear8_be; break; case AUDIO_ENCODING_SLINEAR_BE: if (rec->precision == 16) { rec->factor = 2; rec->sw_code = linear24_to_linear16_be; } else { return (EINVAL); } break; default: return (EINVAL); } /* stereo to mono conversions not yet implemented */ rec->channels = 2; error = mavb_set_rec_rate(sc, rec->sample_rate); if (error) return (error); error = mavb_set_rec_format(sc, rec->encoding); if (error) return (error); } return (0); } int mavb_round_blocksize(void *hdl, int bs) { if (bs == 0) bs = MAVB_CHAN_INTR_SIZE; else bs = (bs + MAVB_CHAN_INTR_SIZE - 1) & ~(MAVB_CHAN_INTR_SIZE - 1); return (bs); } int mavb_halt_output(void *hdl) { struct mavb_softc *sc = (struct mavb_softc *)hdl; DPRINTF(1, ("%s: mavb_halt_output called\n", sc->sc_dev.dv_xname)); bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CHANNEL2_CONTROL, 0); return (0); } int mavb_halt_input(void *hdl) { struct mavb_softc *sc = (struct mavb_softc *)hdl; DPRINTF(1, ("%s: mavb_halt_input called\n", sc->sc_dev.dv_xname)); bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CHANNEL1_CONTROL, 0); return (0); } int mavb_getdev(void *hdl, struct audio_device *ret) { *ret = mavb_device; return (0); } int mavb_set_port(void *hdl, struct mixer_ctrl *mc) { struct mavb_softc *sc = (struct mavb_softc *)hdl; u_char left, right; ad1843_addr_t reg; u_int16_t value; DPRINTF(1, ("%s: mavb_set_port: dev=%d\n", sc->sc_dev.dv_xname, mc->dev)); switch (mc->dev) { case AD1843_ADC_SOURCE: value = ad1843_reg_read(sc, AD1843_ADC_SOURCE_GAIN); value &= ~(AD1843_LSS_MASK | AD1843_RSS_MASK); value |= ((mc->un.ord << AD1843_LSS_SHIFT) & AD1843_LSS_MASK); value |= ((mc->un.ord << AD1843_RSS_SHIFT) & AD1843_RSS_MASK); ad1843_reg_write(sc, AD1843_ADC_SOURCE_GAIN, value); break; case AD1843_ADC_GAIN: left = mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT]; right = mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT]; value = ad1843_reg_read(sc, AD1843_ADC_SOURCE_GAIN); value &= ~(AD1843_LIG_MASK | AD1843_RIG_MASK); value |= ((left >> 4) << AD1843_LIG_SHIFT); value |= ((right >> 4) << AD1843_RIG_SHIFT); ad1843_reg_write(sc, AD1843_ADC_SOURCE_GAIN, value); break; case AD1843_ADC_MIC_GAIN: value = ad1843_reg_read(sc, AD1843_ADC_SOURCE_GAIN); if (mc->un.ord == 0) value &= ~(AD1843_LMGE | AD1843_RMGE); else value |= (AD1843_LMGE | AD1843_RMGE); ad1843_reg_write(sc, AD1843_ADC_SOURCE_GAIN, value); break; case AD1843_DAC1_GAIN: left = AUDIO_MAX_GAIN - mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT]; right = AUDIO_MAX_GAIN - mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT]; value = ad1843_reg_read(sc, AD1843_DAC1_ANALOG_GAIN); value &= ~(AD1843_LDA1G_MASK | AD1843_RDA1G_MASK); value |= ((left >> 2) << AD1843_LDA1G_SHIFT); value |= ((right >> 2) << AD1843_RDA1G_SHIFT); ad1843_reg_write(sc, AD1843_DAC1_ANALOG_GAIN, value); break; case AD1843_DAC1_MUTE: value = ad1843_reg_read(sc, AD1843_DAC1_ANALOG_GAIN); if (mc->un.ord == 0) value &= ~(AD1843_LDA1GM | AD1843_RDA1GM); else value |= (AD1843_LDA1GM | AD1843_RDA1GM); ad1843_reg_write(sc, AD1843_DAC1_ANALOG_GAIN, value); break; case AD1843_DAC2_GAIN: case AD1843_AUX1_GAIN: case AD1843_AUX2_GAIN: case AD1843_AUX3_GAIN: case AD1843_MIC_GAIN: left = AUDIO_MAX_GAIN - mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT]; right = AUDIO_MAX_GAIN - mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT]; reg = AD1843_DAC2_TO_MIXER + mc->dev - AD1843_DAC2_GAIN; value = ad1843_reg_read(sc, reg); value &= ~(AD1843_LD2M_MASK | AD1843_RD2M_MASK); value |= ((left >> 3) << AD1843_LD2M_SHIFT); value |= ((right >> 3) << AD1843_RD2M_SHIFT); ad1843_reg_write(sc, reg, value); break; case AD1843_MONO_GAIN: left = AUDIO_MAX_GAIN - mc->un.value.level[AUDIO_MIXER_LEVEL_MONO]; value = ad1843_reg_read(sc, AD1843_MISC_SETTINGS); value &= ~AD1843_MNM_MASK; value |= ((left >> 3) << AD1843_MNM_SHIFT); ad1843_reg_write(sc, AD1843_MISC_SETTINGS, value); break; case AD1843_DAC2_MUTE: case AD1843_AUX1_MUTE: case AD1843_AUX2_MUTE: case AD1843_AUX3_MUTE: case AD1843_MIC_MUTE: case AD1843_MONO_MUTE: /* matches left channel */ reg = AD1843_DAC2_TO_MIXER + mc->dev - AD1843_DAC2_MUTE; value = ad1843_reg_read(sc, reg); if (mc->un.ord == 0) value &= ~(AD1843_LD2MM | AD1843_RD2MM); else value |= (AD1843_LD2MM | AD1843_RD2MM); ad1843_reg_write(sc, reg, value); break; case AD1843_SUM_MUTE: value = ad1843_reg_read(sc, AD1843_MISC_SETTINGS); if (mc->un.ord == 0) value &= ~AD1843_SUMM; else value |= AD1843_SUMM; ad1843_reg_write(sc, AD1843_MISC_SETTINGS, value); break; case AD1843_MNO_MUTE: value = ad1843_reg_read(sc, AD1843_MISC_SETTINGS); if (mc->un.ord == 0) value &= ~AD1843_MNOM; else value |= AD1843_MNOM; ad1843_reg_write(sc, AD1843_MISC_SETTINGS, value); break; case AD1843_HPO_MUTE: value = ad1843_reg_read(sc, AD1843_MISC_SETTINGS); if (mc->un.ord == 0) value &= ~AD1843_HPOM; else value |= AD1843_HPOM; ad1843_reg_write(sc, AD1843_MISC_SETTINGS, value); value = ad1843_reg_read(sc, AD1843_MISC_SETTINGS); break; default: return (EINVAL); } return (0); } int mavb_get_port(void *hdl, struct mixer_ctrl *mc) { struct mavb_softc *sc = (struct mavb_softc *)hdl; u_char left, right; ad1843_addr_t reg; u_int16_t value; DPRINTF(1, ("%s: mavb_get_port: dev=%d\n", sc->sc_dev.dv_xname, mc->dev)); switch (mc->dev) { case AD1843_ADC_SOURCE: value = ad1843_reg_read(sc, AD1843_ADC_SOURCE_GAIN); mc->un.ord = (value & AD1843_LSS_MASK) >> AD1843_LSS_SHIFT; break; case AD1843_ADC_GAIN: value = ad1843_reg_read(sc, AD1843_ADC_SOURCE_GAIN); left = (value & AD1843_LIG_MASK) >> AD1843_LIG_SHIFT; right = (value & AD1843_RIG_MASK) >> AD1843_RIG_SHIFT; mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = (left << 4) | left; mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = (right << 4) | right; break; case AD1843_ADC_MIC_GAIN: value = ad1843_reg_read(sc, AD1843_ADC_SOURCE_GAIN); mc->un.ord = (value & AD1843_LMGE) ? 1 : 0; break; case AD1843_DAC1_GAIN: value = ad1843_reg_read(sc, AD1843_DAC1_ANALOG_GAIN); left = (value & AD1843_LDA1G_MASK) >> AD1843_LDA1G_SHIFT; right = (value & AD1843_RDA1G_MASK) >> AD1843_RDA1G_SHIFT; mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = AUDIO_MAX_GAIN - (left << 2); mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = AUDIO_MAX_GAIN - (right << 2); break; case AD1843_DAC1_MUTE: value = ad1843_reg_read(sc, AD1843_DAC1_ANALOG_GAIN); mc->un.ord = (value & AD1843_LDA1GM) ? 1 : 0; break; case AD1843_DAC2_GAIN: case AD1843_AUX1_GAIN: case AD1843_AUX2_GAIN: case AD1843_AUX3_GAIN: case AD1843_MIC_GAIN: reg = AD1843_DAC2_TO_MIXER + mc->dev - AD1843_DAC2_GAIN; value = ad1843_reg_read(sc, reg); left = (value & AD1843_LD2M_MASK) >> AD1843_LD2M_SHIFT; right = (value & AD1843_RD2M_MASK) >> AD1843_RD2M_SHIFT; mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = AUDIO_MAX_GAIN - (left << 3); mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = AUDIO_MAX_GAIN - (right << 3); break; case AD1843_MONO_GAIN: if (mc->un.value.num_channels != 1) return (EINVAL); value = ad1843_reg_read(sc, AD1843_MISC_SETTINGS); left = (value & AD1843_MNM_MASK) >> AD1843_MNM_SHIFT; mc->un.value.level[AUDIO_MIXER_LEVEL_MONO] = AUDIO_MAX_GAIN - (left << 3); break; case AD1843_DAC2_MUTE: case AD1843_AUX1_MUTE: case AD1843_AUX2_MUTE: case AD1843_AUX3_MUTE: case AD1843_MIC_MUTE: case AD1843_MONO_MUTE: /* matches left channel */ reg = AD1843_DAC2_TO_MIXER + mc->dev - AD1843_DAC2_MUTE; value = ad1843_reg_read(sc, reg); mc->un.ord = (value & AD1843_LD2MM) ? 1 : 0; break; case AD1843_SUM_MUTE: value = ad1843_reg_read(sc, AD1843_MISC_SETTINGS); mc->un.ord = (value & AD1843_SUMM) ? 1 : 0; break; case AD1843_MNO_MUTE: value = ad1843_reg_read(sc, AD1843_MISC_SETTINGS); mc->un.ord = (value & AD1843_MNOM) ? 1 : 0; break; case AD1843_HPO_MUTE: value = ad1843_reg_read(sc, AD1843_MISC_SETTINGS); mc->un.ord = (value & AD1843_HPOM) ? 1 : 0; break; default: return (EINVAL); } return (0); } int mavb_query_devinfo(void *hdl, struct mixer_devinfo *di) { int i; di->prev = di->next = AUDIO_MIXER_LAST; switch (di->index) { case AD1843_RECORD_CLASS: di->type = AUDIO_MIXER_CLASS; di->mixer_class = AD1843_RECORD_CLASS; strlcpy(di->label.name, AudioCrecord, sizeof di->label.name); break; case AD1843_ADC_SOURCE: di->type = AUDIO_MIXER_ENUM; di->mixer_class = AD1843_RECORD_CLASS; di->next = AD1843_ADC_GAIN; strlcpy(di->label.name, AudioNsource, sizeof di->label.name); di->un.e.num_mem = sizeof ad1843_source / sizeof ad1843_source[1]; for (i = 0; i < di->un.e.num_mem; i++) { strlcpy(di->un.e.member[i].label.name, ad1843_source[i], sizeof di->un.e.member[0].label.name); di->un.e.member[i].ord = i; } break; case AD1843_ADC_GAIN: di->type = AUDIO_MIXER_VALUE; di->mixer_class = AD1843_RECORD_CLASS; di->prev = AD1843_ADC_SOURCE; strlcpy(di->label.name, AudioNvolume, sizeof di->label.name); di->un.v.num_channels = 2; strlcpy(di->un.v.units.name, AudioNvolume, sizeof di->un.v.units.name); break; case AD1843_ADC_MIC_GAIN: di->type = AUDIO_MIXER_ENUM; di->mixer_class = AD1843_RECORD_CLASS; strlcpy(di->label.name, AudioNmicrophone "." AudioNpreamp, sizeof di->label.name); di->un.e.num_mem = 2; strlcpy(di->un.e.member[0].label.name, AudioNoff, sizeof di->un.e.member[0].label.name); di->un.e.member[0].ord = 0; strlcpy(di->un.e.member[1].label.name, AudioNon, sizeof di->un.e.member[1].label.name); di->un.e.member[1].ord = 1; break; case AD1843_INPUT_CLASS: di->type = AUDIO_MIXER_CLASS; di->mixer_class = AD1843_INPUT_CLASS; strlcpy(di->label.name, AudioCinputs, sizeof di->label.name); break; case AD1843_DAC1_GAIN: di->type = AUDIO_MIXER_VALUE; di->mixer_class = AD1843_INPUT_CLASS; di->next = AD1843_DAC1_MUTE; strlcpy(di->label.name, AudioNdac "1", sizeof di->label.name); di->un.v.num_channels = 2; strlcpy(di->un.v.units.name, AudioNvolume, sizeof di->un.v.units.name); break; case AD1843_DAC1_MUTE: di->type = AUDIO_MIXER_ENUM; di->mixer_class = AD1843_INPUT_CLASS; di->prev = AD1843_DAC1_GAIN; strlcpy(di->label.name, AudioNmute, sizeof di->label.name); di->un.e.num_mem = 2; strlcpy(di->un.e.member[0].label.name, AudioNoff, sizeof di->un.e.member[0].label.name); di->un.e.member[0].ord = 0; strlcpy(di->un.e.member[1].label.name, AudioNon, sizeof di->un.e.member[1].label.name); di->un.e.member[1].ord = 1; break; case AD1843_DAC2_GAIN: case AD1843_AUX1_GAIN: case AD1843_AUX2_GAIN: case AD1843_AUX3_GAIN: case AD1843_MIC_GAIN: case AD1843_MONO_GAIN: di->type = AUDIO_MIXER_VALUE; di->mixer_class = AD1843_INPUT_CLASS; di->next = di->index + AD1843_DAC2_MUTE - AD1843_DAC2_GAIN; strlcpy(di->label.name, ad1843_input[di->index - AD1843_DAC2_GAIN], sizeof di->label.name); if (di->index == AD1843_MONO_GAIN) di->un.v.num_channels = 1; else di->un.v.num_channels = 2; strlcpy(di->un.v.units.name, AudioNvolume, sizeof di->un.v.units.name); break; case AD1843_DAC2_MUTE: case AD1843_AUX1_MUTE: case AD1843_AUX2_MUTE: case AD1843_AUX3_MUTE: case AD1843_MIC_MUTE: case AD1843_MONO_MUTE: di->type = AUDIO_MIXER_ENUM; di->mixer_class = AD1843_INPUT_CLASS; di->prev = di->index + AD1843_DAC2_GAIN - AD1843_DAC2_MUTE; strlcpy(di->label.name, AudioNmute, sizeof di->label.name); di->un.e.num_mem = 2; strlcpy(di->un.e.member[0].label.name, AudioNoff, sizeof di->un.e.member[0].label.name); di->un.e.member[0].ord = 0; strlcpy(di->un.e.member[1].label.name, AudioNon, sizeof di->un.e.member[1].label.name); di->un.e.member[1].ord = 1; break; case AD1843_SUM_MUTE: di->type = AUDIO_MIXER_ENUM; di->mixer_class = AD1843_INPUT_CLASS; strlcpy(di->label.name, "sum." AudioNmute, sizeof di->label.name); di->un.e.num_mem = 2; strlcpy(di->un.e.member[0].label.name, AudioNoff, sizeof di->un.e.member[0].label.name); di->un.e.member[0].ord = 0; strlcpy(di->un.e.member[1].label.name, AudioNon, sizeof di->un.e.member[1].label.name); di->un.e.member[1].ord = 1; break; case AD1843_OUTPUT_CLASS: di->type = AUDIO_MIXER_CLASS; di->mixer_class = AD1843_OUTPUT_CLASS; strlcpy(di->label.name, AudioCoutputs, sizeof di->label.name); break; case AD1843_MNO_MUTE: di->type = AUDIO_MIXER_ENUM; di->mixer_class = AD1843_OUTPUT_CLASS; strlcpy(di->label.name, AudioNmono "." AudioNmute, sizeof di->label.name); di->un.e.num_mem = 2; strlcpy(di->un.e.member[0].label.name, AudioNoff, sizeof di->un.e.member[0].label.name); di->un.e.member[0].ord = 0; strlcpy(di->un.e.member[1].label.name, AudioNon, sizeof di->un.e.member[1].label.name); di->un.e.member[1].ord = 1; break; case AD1843_HPO_MUTE: di->type = AUDIO_MIXER_ENUM; di->mixer_class = AD1843_OUTPUT_CLASS; strlcpy(di->label.name, AudioNheadphone "." AudioNmute, sizeof di->label.name); di->un.e.num_mem = 2; strlcpy(di->un.e.member[0].label.name, AudioNoff, sizeof di->un.e.member[0].label.name); di->un.e.member[0].ord = 0; strlcpy(di->un.e.member[1].label.name, AudioNon, sizeof di->un.e.member[1].label.name); di->un.e.member[1].ord = 1; break; default: return (EINVAL); } return (0); } int mavb_get_props(void *hdl) { return (AUDIO_PROP_FULLDUPLEX | AUDIO_PROP_INDEPENDENT); } static void mavb_dma_output(struct mavb_softc *sc) { bus_space_tag_t st = sc->sc_st; bus_space_handle_t sh = sc->sc_sh; u_int64_t write_ptr; caddr_t src, dst, end; int count; write_ptr = bus_space_read_8(st, sh, MAVB_CHANNEL2_WRITE_PTR); end = sc->play.hw_start + MAVB_CHAN_RING_SIZE; dst = sc->play.hw_start + write_ptr; src = sc->play.sw_cur; if (write_ptr % MAVB_CHAN_CHUNK_SIZE) { printf("%s: write_ptr=%d\n", sc->sc_dev.dv_xname, write_ptr); return; } if ((src - sc->play.sw_start) % MAVB_CHAN_CHUNK_SIZE) { printf("%s: src=%d\n", sc->sc_dev.dv_xname, src - sc->play.sw_start); return; } count = MAVB_CHAN_INTR_SIZE / MAVB_CHAN_CHUNK_SIZE; while (--count >= 0) { memcpy(dst, src, MAVB_CHAN_CHUNK_SIZE); dst += MAVB_CHAN_CHUNK_SIZE; src += MAVB_CHAN_CHUNK_SIZE; if (dst >= end) dst = sc->play.hw_start; if (src >= sc->play.sw_end) src = sc->play.sw_start; if (!((src - sc->play.sw_start) % sc->play.blksize)) { if (sc->play.intr) sc->play.intr(sc->play.intrarg); } } write_ptr = dst - sc->play.hw_start; bus_space_write_8(st, sh, MAVB_CHANNEL2_WRITE_PTR, write_ptr); sc->play.sw_cur = src; } static void mavb_dma_input(struct mavb_softc *sc) { bus_space_tag_t st = sc->sc_st; bus_space_handle_t sh = sc->sc_sh; u_int64_t read_ptr; caddr_t src, dst, end; int count; read_ptr = bus_space_read_8(st, sh, MAVB_CHANNEL1_READ_PTR); end = sc->rec.hw_start + MAVB_CHAN_RING_SIZE; src = sc->rec.hw_start + read_ptr; dst = sc->rec.sw_cur; if (read_ptr % MAVB_CHAN_CHUNK_SIZE) { printf("%s: read_ptr=%d\n", sc->sc_dev.dv_xname, read_ptr); return; } if ((dst - sc->rec.sw_start) % MAVB_CHAN_CHUNK_SIZE) { printf("%s: dst=%d\n", sc->sc_dev.dv_xname, dst - sc->rec.sw_start); return; } count = MAVB_CHAN_INTR_SIZE / MAVB_CHAN_CHUNK_SIZE; while (--count >= 0) { memcpy(dst, src, MAVB_CHAN_CHUNK_SIZE); dst += MAVB_CHAN_CHUNK_SIZE; src += MAVB_CHAN_CHUNK_SIZE; if (src >= end) src = sc->rec.hw_start; if (dst >= sc->rec.sw_end) dst = sc->rec.sw_start; if (!((dst - sc->rec.sw_start) % sc->rec.blksize)) { if (sc->rec.intr) sc->rec.intr(sc->rec.intrarg); } } read_ptr = src - sc->rec.hw_start; bus_space_write_8(st, sh, MAVB_CHANNEL1_READ_PTR, read_ptr); sc->rec.sw_cur = dst; } int mavb_trigger_output(void *hdl, void *start, void *end, int blksize, void (*intr)(void *), void *intrarg, struct audio_params *param) { struct mavb_softc *sc = (struct mavb_softc *)hdl; DPRINTF(1, ("%s: mavb_trigger_output: start=%p end=%p " "blksize=%d intr=%p(%p)\n", sc->sc_dev.dv_xname, start, end, blksize, intr, intrarg)); sc->play.blksize = blksize; sc->play.intr = intr; sc->play.intrarg = intrarg; sc->play.sw_start = sc->play.sw_cur = start; sc->play.sw_end = end; bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CHANNEL2_CONTROL, MAVB_CHANNEL_RESET); delay(1000); bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CHANNEL2_CONTROL, 0); /* Fill first 25% of buffer with silence. */ bzero(sc->play.hw_start, MAVB_CHAN_CHUNK_SIZE); bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CHANNEL2_WRITE_PTR, MAVB_CHAN_CHUNK_SIZE); /* Fill next 50% of buffer with audio data. */ mavb_dma_output(sc); /* The buffer is now 75% full. Start DMA and get interrupts * when the buffer is 25% full. The interrupt handler fills * in 50% of the buffer size, putting it back to 75% full. */ bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CHANNEL2_CONTROL, MAVB_CHANNEL_DMA_ENABLE | MAVB_CHANNEL_INT_25); return (0); } int mavb_trigger_input(void *hdl, void *start, void *end, int blksize, void (*intr)(void *), void *intrarg, struct audio_params *param) { struct mavb_softc *sc = (struct mavb_softc *)hdl; DPRINTF(1, ("%s: mavb_trigger_output: start=%p end=%p " "blksize=%d intr=%p(%p)\n", sc->sc_dev.dv_xname, start, end, blksize, intr, intrarg)); sc->rec.blksize = blksize; sc->rec.intr = intr; sc->rec.intrarg = intrarg; sc->rec.sw_start = sc->rec.sw_cur = start; sc->rec.sw_end = end; bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CHANNEL1_CONTROL, MAVB_CHANNEL_RESET); delay(1000); bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CHANNEL1_CONTROL, 0); bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CHANNEL1_CONTROL, MAVB_CHANNEL_DMA_ENABLE | MAVB_CHANNEL_INT_50); return (0); } static void mavb_button_repeat(void *hdl) { struct mavb_softc *sc = (struct mavb_softc *)hdl; u_int64_t intmask, control; u_int16_t value, left, right; DPRINTF(1, ("%s: mavb_repeat called\n", sc->sc_dev.dv_xname)); #define MAVB_CONTROL_VOLUME_BUTTONS \ (MAVB_CONTROL_VOLUME_BUTTON_UP | MAVB_CONTROL_VOLUME_BUTTON_DOWN) control = bus_space_read_8(sc->sc_st, sc->sc_sh, MAVB_CONTROL); if (control & MAVB_CONTROL_VOLUME_BUTTONS) { value = ad1843_reg_read(sc, AD1843_DAC1_ANALOG_GAIN); left = (value & AD1843_LDA1G_MASK) >> AD1843_LDA1G_SHIFT; right = (value & AD1843_RDA1G_MASK) >> AD1843_RDA1G_SHIFT; if (control & MAVB_CONTROL_VOLUME_BUTTON_UP) { control &= ~MAVB_CONTROL_VOLUME_BUTTON_UP; if (left > 0) left--; /* attenuation! */ if (right > 0) right--; } if (control & MAVB_CONTROL_VOLUME_BUTTON_DOWN) { control &= ~MAVB_CONTROL_VOLUME_BUTTON_DOWN; if (left < 63) left++; if (right < 63) right++; } bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CONTROL, control); value &= ~(AD1843_LDA1G_MASK | AD1843_RDA1G_MASK); value |= (left << AD1843_LDA1G_SHIFT); value |= (right << AD1843_RDA1G_SHIFT); ad1843_reg_write(sc, AD1843_DAC1_ANALOG_GAIN, value); timeout_add(&sc->sc_volume_button_to, (hz * MAVB_VOLUME_BUTTON_REPEAT_DELN) / 1000); } else { /* Enable volume button interrupts again. */ intmask = bus_space_read_8(sc->sc_st, sc->sc_isash, MACE_ISA_INT_MASK); bus_space_write_8(sc->sc_st, sc->sc_isash, MACE_ISA_INT_MASK, intmask | MACE_ISA_INT_AUDIO_SC); } } static int mavb_intr(void *arg) { struct mavb_softc *sc = arg; u_int64_t intstat, intmask; intstat = bus_space_read_8(sc->sc_st, sc->sc_isash, MACE_ISA_INT_STAT); DPRINTF(MAVB_DEBUG_INTR, ("%s: mavb_intr: intstat = 0x%lx\n", sc->sc_dev.dv_xname, intstat)); if (intstat & MACE_ISA_INT_AUDIO_SC) { /* Disable volume button interrupts. */ intmask = bus_space_read_8(sc->sc_st, sc->sc_isash, MACE_ISA_INT_MASK); bus_space_write_8(sc->sc_st, sc->sc_isash, MACE_ISA_INT_MASK, intmask & ~MACE_ISA_INT_AUDIO_SC); timeout_add(&sc->sc_volume_button_to, (hz * MAVB_VOLUME_BUTTON_REPEAT_DEL1) / 1000); } if (intstat & MACE_ISA_INT_AUDIO_DMA1) mavb_dma_input(sc); if (intstat & MACE_ISA_INT_AUDIO_DMA2) mavb_dma_output(sc); return 1; } int mavb_match(struct device *parent, void *match, void *aux) { struct macebus_attach_args *maa = aux; bus_space_handle_t ioh; u_int64_t control; if (bus_space_map(maa->maa_iot, maa->maa_baseaddr, MAVB_NREGS, 0, &ioh) != 0) return (0); control = bus_space_read_8(maa->maa_iot, ioh, MAVB_CONTROL); bus_space_unmap(maa->maa_iot, ioh, MAVB_NREGS); return ((control & MAVB_CONTROL_CODEC_PRESENT) != 0); } void mavb_attach(struct device *parent, struct device *self, void *aux) { struct mavb_softc *sc = (void *)self; struct macebus_attach_args *maa = aux; bus_dma_segment_t seg; u_int16_t value; int rseg; sc->sc_st = maa->maa_iot; if (bus_space_map(sc->sc_st, maa->maa_baseaddr, MAVB_NREGS, 0, &sc->sc_sh) != 0) { printf(": can't map i/o space\n"); return; } /* XXX We need access to some of the MACE ISA registers. */ extern bus_space_handle_t mace_h; bus_space_subregion(sc->sc_st, mace_h, 0, MAVB_ISA_NREGS, &sc->sc_isash); /* Set up DMA structures. */ sc->sc_dmat = maa->maa_dmat; if (bus_dmamap_create(sc->sc_dmat, MAVB_ISA_RING_SIZE, 1, MAVB_ISA_RING_SIZE, 0, 0, &sc->sc_dmamap)) { printf(": can't create MACE ISA DMA map\n"); return; } if (bus_dmamem_alloc(sc->sc_dmat, MAVB_ISA_RING_SIZE, MACE_ISA_RING_ALIGN, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT)) { printf(": can't allocate ring buffer\n"); return; } if (bus_dmamem_map(sc->sc_dmat, &seg, rseg, MAVB_ISA_RING_SIZE, &sc->sc_ring, BUS_DMA_COHERENT)) { printf(": can't map ring buffer\n"); return; } if (bus_dmamap_load(sc->sc_dmat, sc->sc_dmamap, sc->sc_ring, MAVB_ISA_RING_SIZE, NULL, BUS_DMA_NOWAIT)) { printf(": can't load MACE ISA DMA map\n"); return; } sc->rec.hw_start = sc->sc_ring; sc->play.hw_start = sc->sc_ring + MAVB_CHAN_RING_SIZE; bus_space_write_8(sc->sc_st, sc->sc_isash, MACE_ISA_RING_BASE, sc->sc_dmamap->dm_segs[0].ds_addr); /* Establish interrupt. */ macebus_intr_establish(maa->maa_intr, maa->maa_mace_intr, IST_EDGE, IPL_AUDIO, mavb_intr, sc, sc->sc_dev.dv_xname); /* 2. Assert the RESET signal. */ bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CONTROL, MAVB_CONTROL_RESET); delay(1); /* at least 100 ns */ /* 3. Deassert the RESET signal and enter a wait period to allow the AD1843 internal clocks and the external crystal oscillator to stabilize. */ bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CONTROL, 0); delay(800); /* typically 400 us to 800 us */ if (ad1843_reg_read(sc, AD1843_CODEC_STATUS) & AD1843_INIT) { printf(": codec not ready\n"); return; } /* 4. Put the conversion sources into standby. */ value = ad1843_reg_read(sc, AD1843_FUNDAMENTAL_SETTINGS); ad1843_reg_write(sc, AD1843_FUNDAMENTAL_SETTINGS, value & ~AD1843_PDNI); delay (500000); /* approximately 474 ms */ if (ad1843_reg_read(sc, AD1843_CODEC_STATUS) & AD1843_PDNO) { printf(": can't power up conversion resources\n"); return; } /* 5. Power up the clock generators and enable clock output pins. */ value = ad1843_reg_read(sc, AD1843_FUNDAMENTAL_SETTINGS); ad1843_reg_write(sc, AD1843_FUNDAMENTAL_SETTINGS, value | AD1843_C1EN | AD1843_C2EN); /* 6. Configure conversion resources while they are in standby. */ value = ad1843_reg_read(sc, AD1843_SERIAL_INTERFACE); ad1843_reg_write(sc, AD1843_SERIAL_INTERFACE, value | AD1843_ADTLK); value = ad1843_reg_read(sc, AD1843_CHANNEL_SAMPLE_RATE); ad1843_reg_write(sc, AD1843_CHANNEL_SAMPLE_RATE, value | (2 << AD1843_DA1C_SHIFT) | (1 << AD1843_ADRC_SHIFT) | (1 << AD1843_ADLC_SHIFT)); /* 7. Enable conversion resources. */ value = ad1843_reg_read(sc, AD1843_CHANNEL_POWER_DOWN); ad1843_reg_write(sc, AD1843_CHANNEL_POWER_DOWN, value | (AD1843_DA1EN | AD1843_ANAEN | AD1843_AAMEN | AD1843_ADREN | AD1843_ADLEN)); /* 8. Configure conversion resources while they are enabled. */ value = ad1843_reg_read(sc, AD1843_DAC1_ANALOG_GAIN); ad1843_reg_write(sc, AD1843_DAC1_ANALOG_GAIN, value & ~(AD1843_LDA1GM | AD1843_RDA1GM)); value = ad1843_reg_read(sc, AD1843_DAC1_DIGITAL_GAIN); ad1843_reg_write(sc, AD1843_DAC1_DIGITAL_GAIN, value & ~(AD1843_LDA1AM | AD1843_RDA1AM)); value = ad1843_reg_read(sc, AD1843_MISC_SETTINGS); ad1843_reg_write(sc, AD1843_MISC_SETTINGS, value & ~(AD1843_HPOM | AD1843_MNOM)); value = ad1843_reg_read(sc, AD1843_CODEC_STATUS); printf(": AD1843 rev %d\n", (u_int)value & AD1843_REVISION_MASK); sc->play.rate = sc->rec.rate = 48000; sc->play.format = sc->rec.format = AD1843_PCM8; timeout_set(&sc->sc_volume_button_to, mavb_button_repeat, sc); audio_attach_mi(&mavb_sa_hw_if, sc, &sc->sc_dev); return; } u_int16_t ad1843_reg_read(struct mavb_softc *sc, ad1843_addr_t addr) { bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CODEC_CONTROL, (addr & MAVB_CODEC_ADDRESS_MASK) << MAVB_CODEC_ADDRESS_SHIFT | MAVB_CODEC_READ); delay(200); return bus_space_read_8(sc->sc_st, sc->sc_sh, MAVB_CODEC_STATUS); } u_int16_t ad1843_reg_write(struct mavb_softc *sc, ad1843_addr_t addr, u_int16_t value) { bus_space_write_8(sc->sc_st, sc->sc_sh, MAVB_CODEC_CONTROL, (addr & MAVB_CODEC_ADDRESS_MASK) << MAVB_CODEC_ADDRESS_SHIFT | (value & MAVB_CODEC_WORD_MASK) << MAVB_CODEC_WORD_SHIFT); delay(200); return bus_space_read_8(sc->sc_st, sc->sc_sh, MAVB_CODEC_STATUS); } void ad1843_dump_regs(struct mavb_softc *sc) { u_int16_t addr; for (addr = 0; addr < AD1843_NREGS; addr++) printf("%d: 0x%04x\n", addr, ad1843_reg_read(sc, addr)); }