243 lines
7.0 KiB
C
243 lines
7.0 KiB
C
/*-
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* Copyright (c) 2016 Ruslan Bukin <br@bsdpad.com>
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* All rights reserved.
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*
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* This software was developed by SRI International and the University of
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* Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237
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* ("CTSRD"), as part of the DARPA CRASH research programme.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/* Ingenic JZ4780 CODEC. */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/conf.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/resource.h>
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#include <sys/rman.h>
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#include <machine/bus.h>
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#include <dev/fdt/fdt_common.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <mips/ingenic/jz4780_common.h>
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#include <mips/ingenic/jz4780_codec.h>
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struct codec_softc {
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device_t dev;
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struct resource *res[1];
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bus_space_tag_t bst;
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bus_space_handle_t bsh;
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};
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static struct resource_spec codec_spec[] = {
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{ SYS_RES_MEMORY, 0, RF_ACTIVE },
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{ -1, 0 }
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};
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static int codec_probe(device_t dev);
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static int codec_attach(device_t dev);
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static int codec_detach(device_t dev);
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void codec_print_registers(struct codec_softc *sc);
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static int
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codec_write(struct codec_softc *sc, uint32_t reg, uint32_t val)
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{
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uint32_t tmp;
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tmp = (reg << RGADW_RGADDR_S);
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tmp |= (val << RGADW_RGDIN_S);
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tmp |= RGADW_RGWR;
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WRITE4(sc, CODEC_RGADW, tmp);
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while(READ4(sc, CODEC_RGADW) & RGADW_RGWR)
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;
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return (0);
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}
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static int
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codec_read(struct codec_softc *sc, uint32_t reg)
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{
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uint32_t tmp;
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tmp = (reg << RGADW_RGADDR_S);
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WRITE4(sc, CODEC_RGADW, tmp);
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tmp = READ4(sc, CODEC_RGDATA);
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return (tmp);
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}
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void
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codec_print_registers(struct codec_softc *sc)
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{
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printf("codec SR %x\n", codec_read(sc, SR));
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printf("codec SR2 %x\n", codec_read(sc, SR2));
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printf("codec MR %x\n", codec_read(sc, MR));
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printf("codec AICR_DAC %x\n", codec_read(sc, AICR_DAC));
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printf("codec AICR_ADC %x\n", codec_read(sc, AICR_ADC));
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printf("codec CR_LO %x\n", codec_read(sc, CR_LO));
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printf("codec CR_HP %x\n", codec_read(sc, CR_HP));
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printf("codec CR_DMIC %x\n", codec_read(sc, CR_DMIC));
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printf("codec CR_MIC1 %x\n", codec_read(sc, CR_MIC1));
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printf("codec CR_MIC2 %x\n", codec_read(sc, CR_MIC2));
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printf("codec CR_LI1 %x\n", codec_read(sc, CR_LI1));
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printf("codec CR_LI2 %x\n", codec_read(sc, CR_LI2));
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printf("codec CR_DAC %x\n", codec_read(sc, CR_DAC));
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printf("codec CR_ADC %x\n", codec_read(sc, CR_ADC));
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printf("codec CR_MIX %x\n", codec_read(sc, CR_MIX));
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printf("codec DR_MIX %x\n", codec_read(sc, DR_MIX));
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printf("codec CR_VIC %x\n", codec_read(sc, CR_VIC));
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printf("codec CR_CK %x\n", codec_read(sc, CR_CK));
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printf("codec FCR_DAC %x\n", codec_read(sc, FCR_DAC));
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printf("codec FCR_ADC %x\n", codec_read(sc, FCR_ADC));
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printf("codec CR_TIMER_MSB %x\n", codec_read(sc, CR_TIMER_MSB));
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printf("codec CR_TIMER_LSB %x\n", codec_read(sc, CR_TIMER_LSB));
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printf("codec ICR %x\n", codec_read(sc, ICR));
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printf("codec IMR %x\n", codec_read(sc, IMR));
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printf("codec IFR %x\n", codec_read(sc, IFR));
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printf("codec IMR2 %x\n", codec_read(sc, IMR2));
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printf("codec IFR2 %x\n", codec_read(sc, IFR2));
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printf("codec GCR_HPL %x\n", codec_read(sc, GCR_HPL));
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printf("codec GCR_HPR %x\n", codec_read(sc, GCR_HPR));
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printf("codec GCR_LIBYL %x\n", codec_read(sc, GCR_LIBYL));
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printf("codec GCR_LIBYR %x\n", codec_read(sc, GCR_LIBYR));
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printf("codec GCR_DACL %x\n", codec_read(sc, GCR_DACL));
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printf("codec GCR_DACR %x\n", codec_read(sc, GCR_DACR));
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printf("codec GCR_MIC1 %x\n", codec_read(sc, GCR_MIC1));
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printf("codec GCR_MIC2 %x\n", codec_read(sc, GCR_MIC2));
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printf("codec GCR_ADCL %x\n", codec_read(sc, GCR_ADCL));
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printf("codec GCR_ADCR %x\n", codec_read(sc, GCR_ADCR));
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printf("codec GCR_MIXDACL %x\n", codec_read(sc, GCR_MIXDACL));
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printf("codec GCR_MIXDACR %x\n", codec_read(sc, GCR_MIXDACR));
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printf("codec GCR_MIXADCL %x\n", codec_read(sc, GCR_MIXADCL));
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printf("codec GCR_MIXADCR %x\n", codec_read(sc, GCR_MIXADCR));
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printf("codec CR_ADC_AGC %x\n", codec_read(sc, CR_ADC_AGC));
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printf("codec DR_ADC_AGC %x\n", codec_read(sc, DR_ADC_AGC));
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}
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static int
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codec_probe(device_t dev)
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{
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if (!ofw_bus_status_okay(dev))
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return (ENXIO);
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if (!ofw_bus_is_compatible(dev, "ingenic,jz4780-codec"))
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return (ENXIO);
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device_set_desc(dev, "Ingenic JZ4780 CODEC");
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return (BUS_PROBE_DEFAULT);
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}
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static int
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codec_attach(device_t dev)
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{
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struct codec_softc *sc;
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uint8_t reg;
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sc = device_get_softc(dev);
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sc->dev = dev;
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if (bus_alloc_resources(dev, codec_spec, sc->res)) {
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device_printf(dev, "could not allocate resources for device\n");
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return (ENXIO);
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}
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/* Memory interface */
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sc->bst = rman_get_bustag(sc->res[0]);
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sc->bsh = rman_get_bushandle(sc->res[0]);
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/* Initialize codec. */
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reg = codec_read(sc, CR_VIC);
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reg &= ~(VIC_SB_SLEEP | VIC_SB);
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codec_write(sc, CR_VIC, reg);
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reg = codec_read(sc, CR_DAC);
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reg &= ~(DAC_SB | DAC_MUTE);
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codec_write(sc, CR_DAC, reg);
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/* I2S, 16-bit, 96 kHz. */
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reg = codec_read(sc, AICR_DAC);
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reg &= ~(AICR_DAC_SB | DAC_ADWL_M);
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reg |= DAC_ADWL_16;
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reg &= ~(AUDIOIF_M);
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reg |= AUDIOIF_I2S;
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codec_write(sc, AICR_DAC, reg);
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reg = FCR_DAC_96;
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codec_write(sc, FCR_DAC, reg);
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/* Unmute headphones. */
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reg = codec_read(sc, CR_HP);
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reg &= ~(HP_SB | HP_MUTE);
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codec_write(sc, CR_HP, 0);
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return (0);
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}
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static int
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codec_detach(device_t dev)
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{
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struct codec_softc *sc;
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sc = device_get_softc(dev);
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bus_release_resources(dev, codec_spec, sc->res);
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return (0);
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}
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static device_method_t codec_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, codec_probe),
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DEVMETHOD(device_attach, codec_attach),
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DEVMETHOD(device_detach, codec_detach),
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DEVMETHOD_END
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};
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static driver_t codec_driver = {
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"codec",
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codec_methods,
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sizeof(struct codec_softc),
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};
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static devclass_t codec_devclass;
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DRIVER_MODULE(codec, simplebus, codec_driver, codec_devclass, 0, 0);
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