The branch main has been updated by avg:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=aa917184a9c04b41e055e13b1ab158dfacca4c66

commit aa917184a9c04b41e055e13b1ab158dfacca4c66
Author:     Oleksandr Tymoshenko <[email protected]>
AuthorDate: 2021-06-04 12:18:06 +0000
Commit:     Andriy Gapon <[email protected]>
CommitDate: 2021-11-06 17:47:10 +0000

    add rk3328_codec and rk_i2s from gonzoua/socaudio
    
    Not sure why these haven't been committed with the rest of the SoC Audio
    project.  They work sufficiently well for me.
    
    Discussed with: manu
    MFC after:      1 month
---
 sys/arm64/rockchip/rk3328_codec.c | 593 ++++++++++++++++++++++++++++++++++
 sys/arm64/rockchip/rk_i2s.c       | 657 ++++++++++++++++++++++++++++++++++++++
 sys/conf/files.arm64              |   2 +
 3 files changed, 1252 insertions(+)

diff --git a/sys/arm64/rockchip/rk3328_codec.c 
b/sys/arm64/rockchip/rk3328_codec.c
new file mode 100644
index 000000000000..940b3b8bb9e8
--- /dev/null
+++ b/sys/arm64/rockchip/rk3328_codec.c
@@ -0,0 +1,593 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2020 Oleksandr Tymoshenko <[email protected]>
+ * Copyright (c) 2018 Jared McNeill <[email protected]>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/rman.h>
+#include <sys/resource.h>
+#include <machine/bus.h>
+
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <dev/extres/clk/clk.h>
+#include <dev/extres/syscon/syscon.h>
+
+#include "syscon_if.h"
+
+#include "opt_snd.h"
+#include <dev/sound/pcm/sound.h>
+#include <dev/sound/fdt/audio_dai.h>
+#include "audio_dai_if.h"
+#include "mixer_if.h"
+
+#define        RKCODEC_MIXER_DEVS              (1 << SOUND_MIXER_VOLUME)
+
+#define        GRF_SOC_CON2                    0x0408
+#define         SOC_CON2_I2S_ACODEC_EN                 (1 << 14)
+#define         SOC_CON2_I2S_ACODEC_EN_MASK            ((1 << 14) << 16)
+#define        GRF_SOC_CON10                   0x0428
+#define         SOC_CON10_GPIOMUT                      (1 << 1)
+#define         SOC_CON10_GPIOMUT_MASK                 ((1 << 1) << 16)
+#define         SOC_CON10_GPIOMUT_EN                   (1 << 0)
+#define         SOC_CON10_GPIOMUT_EN_MASK                      ((1 << 0) << 16)
+
+#define        CODEC_RESET                     0x00
+#define         RESET_DIG_CORE_RST                     (1 << 1)
+#define         RESET_SYS_RST                          (1 << 0)
+#define        CODEC_DAC_INIT_CTRL1            0x0c
+#define         DAC_INIT_CTRL1_DIRECTION_IN            (0 << 5)
+#define         DAC_INIT_CTRL1_DIRECTION_OUT           (1 << 5)
+#define         DAC_INIT_CTRL1_DAC_I2S_MODE_SLAVE      (0 << 4)
+#define         DAC_INIT_CTRL1_DAC_I2S_MODE_MASTER     (1 << 4)
+#define         DAC_INIT_CTRL1_MODE_MASK               (3 << 4)
+#define        CODEC_DAC_INIT_CTRL2            0x10
+#define         DAC_INIT_CTRL2_DAC_VDL_16BITS          (0 << 5)
+#define         DAC_INIT_CTRL2_DAC_VDL_20BITS          (1 << 5)
+#define         DAC_INIT_CTRL2_DAC_VDL_24BITS          (2 << 5)
+#define         DAC_INIT_CTRL2_DAC_VDL_32BITS          (3 << 5)
+#define         DAC_INIT_CTRL2_DAC_VDL_MASK            (3 << 5)
+#define         DAC_INIT_CTRL2_DAC_MODE_RJM            (0 << 3)
+#define         DAC_INIT_CTRL2_DAC_MODE_LJM            (1 << 3)
+#define         DAC_INIT_CTRL2_DAC_MODE_I2S            (2 << 3)
+#define         DAC_INIT_CTRL2_DAC_MODE_PCM            (3 << 3)
+#define         DAC_INIT_CTRL2_DAC_MODE_MASK           (3 << 3)
+#define        CODEC_DAC_INIT_CTRL3            0x14
+#define         DAC_INIT_CTRL3_WL_16BITS               (0 << 2)
+#define         DAC_INIT_CTRL3_WL_20BITS               (1 << 2)
+#define         DAC_INIT_CTRL3_WL_24BITS               (2 << 2)
+#define         DAC_INIT_CTRL3_WL_32BITS               (3 << 2)
+#define         DAC_INIT_CTRL3_WL_MASK                 (3 << 2)
+#define         DAC_INIT_CTRL3_RST_MASK                (1 << 1)
+#define         DAC_INIT_CTRL3_RST_DIS                 (1 << 1)
+#define         DAC_INIT_CTRL3_DAC_BCP_REVERSAL        (1 << 0)
+#define         DAC_INIT_CTRL3_DAC_BCP_NORMAL          (0 << 0)
+#define         DAC_INIT_CTRL3_DAC_BCP_MASK            (1 << 0)
+#define        CODEC_DAC_PRECHARGE_CTRL        0x88
+#define         DAC_PRECHARGE_CTRL_DAC_CHARGE_PRECHARGE        (1 << 7)
+#define         DAC_PRECHARGE_CTRL_DAC_CHARGE_CURRENT_I        (1 << 0)
+#define         DAC_PRECHARGE_CTRL_DAC_CHARGE_CURRENT_ALL      (0x7f)
+#define        CODEC_DAC_PWR_CTRL              0x8c
+#define         DAC_PWR_CTRL_DAC_PWR                   (1 << 6)
+#define         DAC_PWR_CTRL_DACL_PATH_REFV            (1 << 5)
+#define         DAC_PWR_CTRL_HPOUTL_ZERO_CROSSING      (1 << 4)
+#define         DAC_PWR_CTRL_DACR_PATH_REFV            (1 << 1)
+#define         DAC_PWR_CTRL_HPOUTR_ZERO_CROSSING      (1 << 0)
+#define        CODEC_DAC_CLK_CTRL              0x90
+#define         DAC_CLK_CTRL_DACL_REFV_ON              (1 << 7)
+#define         DAC_CLK_CTRL_DACL_CLK_ON               (1 << 6)
+#define         DAC_CLK_CTRL_DACL_ON                   (1 << 5)
+#define         DAC_CLK_CTRL_DACL_INIT_ON              (1 << 4)
+#define         DAC_CLK_CTRL_DACR_REFV_ON              (1 << 3)
+#define         DAC_CLK_CTRL_DACR_CLK_ON               (1 << 2)
+#define         DAC_CLK_CTRL_DACR_ON                   (1 << 1)
+#define         DAC_CLK_CTRL_DACR_INIT_ON              (1 << 0)
+#define        CODEC_HPMIX_CTRL                0x94
+#define         HPMIX_CTRL_HPMIXL_EN                   (1 << 6)
+#define         HPMIX_CTRL_HPMIXL_INIT_EN              (1 << 5)
+#define         HPMIX_CTRL_HPMIXL_INIT2_EN             (1 << 4)
+#define         HPMIX_CTRL_HPMIXR_EN                   (1 << 2)
+#define         HPMIX_CTRL_HPMIXR_INIT_EN              (1 << 1)
+#define         HPMIX_CTRL_HPMIXR_INIT2_EN             (1 << 0)
+#define        CODEC_DAC_SELECT                0x98
+#define         DAC_SELECT_DACL_SELECT                 (1 << 4)
+#define         DAC_SELECT_DACR_SELECT                 (1 << 0)
+#define        CODEC_HPOUT_CTRL                0x9c
+#define         HPOUT_CTRL_HPOUTL_EN                   (1 << 7)
+#define         HPOUT_CTRL_HPOUTL_INIT_EN              (1 << 6)
+#define         HPOUT_CTRL_HPOUTL_UNMUTE               (1 << 5)
+#define         HPOUT_CTRL_HPOUTR_EN                   (1 << 4)
+#define         HPOUT_CTRL_HPOUTR_INIT_EN              (1 << 3)
+#define         HPOUT_CTRL_HPOUTR_UNMUTE               (1 << 2)
+#define        CODEC_HPOUTL_GAIN_CTRL          0xa0
+#define        CODEC_HPOUTR_GAIN_CTRL          0xa4
+#define        CODEC_HPOUT_POP_CTRL            0xa8
+#define         HPOUT_POP_CTRL_HPOUTR_POP              (1 << 5)
+#define         HPOUT_POP_CTRL_HPOUTR_POP_XCHARGE      (1 << 4)
+#define         HPOUT_POP_CTRL_HPOUTL_POP              (1 << 1)
+#define         HPOUT_POP_CTRL_HPOUTL_POP_XCHARGE      (1 << 0)
+
+#define        DEFAULT_RATE                    (48000 * 256)
+
+static struct ofw_compat_data compat_data[] = {
+       { "rockchip,rk3328-codec",      1},
+       { NULL,                         0 }
+};
+
+struct rkcodec_softc {
+       device_t        dev;
+       struct resource *res;
+       struct mtx      mtx;
+       clk_t           mclk;
+       clk_t           pclk;
+       struct syscon   *grf;
+       u_int   regaddr;        /* address for the sysctl */
+};
+
+#define        RKCODEC_LOCK(sc)                mtx_lock(&(sc)->mtx)
+#define        RKCODEC_UNLOCK(sc)              mtx_unlock(&(sc)->mtx)
+#define        RKCODEC_READ(sc, reg)           bus_read_4((sc)->res, (reg))
+#define        RKCODEC_WRITE(sc, reg, val)     bus_write_4((sc)->res, (reg), 
(val))
+
+static int rkcodec_probe(device_t dev);
+static int rkcodec_attach(device_t dev);
+static int rkcodec_detach(device_t dev);
+
+static void
+rkcodec_set_power(struct rkcodec_softc *sc, bool poweron)
+{
+       uint32_t val;
+       val = RKCODEC_READ(sc, CODEC_DAC_PRECHARGE_CTRL);
+       if (poweron)
+               val |= DAC_PRECHARGE_CTRL_DAC_CHARGE_PRECHARGE;
+       else
+               val &= ~(DAC_PRECHARGE_CTRL_DAC_CHARGE_PRECHARGE);
+       RKCODEC_WRITE(sc, CODEC_DAC_PRECHARGE_CTRL, val);
+       DELAY(10);
+       if (poweron)
+               val |= DAC_PRECHARGE_CTRL_DAC_CHARGE_CURRENT_ALL;
+       else
+               val &= ~(DAC_PRECHARGE_CTRL_DAC_CHARGE_CURRENT_ALL);
+       RKCODEC_WRITE(sc, CODEC_DAC_PRECHARGE_CTRL, val);
+
+}
+
+static void
+rkcodec_set_mute(struct rkcodec_softc *sc, bool muted)
+{
+       uint32_t val;
+       val = SOC_CON10_GPIOMUT_MASK;
+       if (!muted)
+               val |= SOC_CON10_GPIOMUT;
+       SYSCON_WRITE_4(sc->grf, GRF_SOC_CON10, val);
+}
+
+static void
+rkcodec_reset(struct rkcodec_softc *sc)
+{
+
+       RKCODEC_WRITE(sc, CODEC_RESET, 0);
+       DELAY(10);
+       RKCODEC_WRITE(sc, CODEC_RESET, RESET_DIG_CORE_RST | RESET_SYS_RST);
+}
+
+static int
+rkcodec_probe(device_t dev)
+{
+       if (!ofw_bus_status_okay(dev))
+               return (ENXIO);
+
+       if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
+               return (ENXIO);
+
+       device_set_desc(dev, "Rockchip RK3328 CODEC");
+       return (BUS_PROBE_DEFAULT);
+}
+
+static int
+rkcodec_attach(device_t dev)
+{
+       struct rkcodec_softc *sc;
+       int error, rid;
+       phandle_t node;
+       uint32_t val;
+
+       sc = device_get_softc(dev);
+       sc->dev = dev;
+
+       mtx_init(&sc->mtx, device_get_nameunit(dev), NULL, MTX_DEF);
+
+       rid = 0;
+       sc->res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
+       if (!sc->res) {
+               device_printf(dev, "could not allocate resource for device\n");
+               error = ENXIO;
+               goto fail;
+       }
+
+       node = ofw_bus_get_node(dev);
+       if (syscon_get_by_ofw_property(dev, node,
+           "rockchip,grf", &sc->grf) != 0) {
+               device_printf(dev, "cannot get rockchip,grf handle\n");
+               return (ENXIO);
+       }
+
+       val = SOC_CON2_I2S_ACODEC_EN_MASK  | (SOC_CON2_I2S_ACODEC_EN << 16);
+       SYSCON_WRITE_4(sc->grf, GRF_SOC_CON2, val);
+
+       val = 0 | (SOC_CON10_GPIOMUT_EN << 16);
+       SYSCON_WRITE_4(sc->grf, GRF_SOC_CON10, val);
+
+       error = clk_get_by_ofw_name(dev, 0, "pclk", &sc->pclk);
+       if (error != 0) {
+               device_printf(dev, "could not get pclk clock\n");
+               goto fail;
+       }
+
+       error = clk_get_by_ofw_name(dev, 0, "mclk", &sc->mclk);
+       if (error != 0) {
+               device_printf(dev, "could not get mclk clock\n");
+               goto fail;
+       }
+
+       error = clk_enable(sc->pclk);
+       if (error != 0) {
+               device_printf(sc->dev, "could not enable pclk clock\n");
+               goto fail;
+       }
+
+       error = clk_enable(sc->mclk);
+       if (error != 0) {
+               device_printf(sc->dev, "could not enable mclk clock\n");
+               goto fail;
+       }
+
+#if 0
+       error = clk_set_freq(sc->mclk, DEFAULT_RATE, 0);
+       if (error != 0) {
+               device_printf(sc->dev, "could not set frequency for mclk 
clock\n");
+               goto fail;
+       }
+#endif
+
+       /* TODO: handle mute-gpios */
+
+       rkcodec_reset(sc);
+       rkcodec_set_power(sc, true);
+
+       val = RKCODEC_READ(sc, CODEC_DAC_PWR_CTRL);
+       val |= DAC_PWR_CTRL_DAC_PWR;
+       RKCODEC_WRITE(sc, CODEC_DAC_PWR_CTRL, val);
+
+       val |= DAC_PWR_CTRL_DACL_PATH_REFV |
+           DAC_PWR_CTRL_DACR_PATH_REFV;
+       RKCODEC_WRITE(sc, CODEC_DAC_PWR_CTRL, val);
+
+       val |= DAC_PWR_CTRL_HPOUTL_ZERO_CROSSING |
+           DAC_PWR_CTRL_HPOUTR_ZERO_CROSSING;
+       RKCODEC_WRITE(sc, CODEC_DAC_PWR_CTRL, val);
+
+       val = RKCODEC_READ(sc, CODEC_HPOUT_POP_CTRL);
+       val |= HPOUT_POP_CTRL_HPOUTR_POP | HPOUT_POP_CTRL_HPOUTL_POP;
+       val &= ~(HPOUT_POP_CTRL_HPOUTR_POP_XCHARGE | 
HPOUT_POP_CTRL_HPOUTL_POP_XCHARGE);
+       RKCODEC_WRITE(sc, CODEC_HPOUT_POP_CTRL, val);
+
+       val = RKCODEC_READ(sc, CODEC_HPMIX_CTRL);
+       val |= HPMIX_CTRL_HPMIXL_EN | HPMIX_CTRL_HPMIXR_EN;
+       RKCODEC_WRITE(sc, CODEC_HPMIX_CTRL, val);
+
+       val |= HPMIX_CTRL_HPMIXL_INIT_EN | HPMIX_CTRL_HPMIXR_INIT_EN;
+       RKCODEC_WRITE(sc, CODEC_HPMIX_CTRL, val);
+
+       val = RKCODEC_READ(sc, CODEC_HPOUT_CTRL);
+       val |= HPOUT_CTRL_HPOUTL_EN | HPOUT_CTRL_HPOUTR_EN;
+       RKCODEC_WRITE(sc, CODEC_HPOUT_CTRL, val);
+
+       val |= HPOUT_CTRL_HPOUTL_INIT_EN | HPOUT_CTRL_HPOUTR_INIT_EN;
+       RKCODEC_WRITE(sc, CODEC_HPOUT_CTRL, val);
+
+       val = RKCODEC_READ(sc, CODEC_DAC_CLK_CTRL);
+       val |= DAC_CLK_CTRL_DACL_REFV_ON | DAC_CLK_CTRL_DACR_REFV_ON;
+       RKCODEC_WRITE(sc, CODEC_DAC_CLK_CTRL, val);
+
+       val |= DAC_CLK_CTRL_DACL_CLK_ON | DAC_CLK_CTRL_DACR_CLK_ON;
+       RKCODEC_WRITE(sc, CODEC_DAC_CLK_CTRL, val);
+
+       val |= DAC_CLK_CTRL_DACL_ON | DAC_CLK_CTRL_DACR_ON;
+       RKCODEC_WRITE(sc, CODEC_DAC_CLK_CTRL, val);
+
+       val |= DAC_CLK_CTRL_DACL_INIT_ON | DAC_CLK_CTRL_DACR_INIT_ON;
+       RKCODEC_WRITE(sc, CODEC_DAC_CLK_CTRL, val);
+
+       val = RKCODEC_READ(sc, CODEC_DAC_SELECT);
+       val |= DAC_SELECT_DACL_SELECT | DAC_SELECT_DACR_SELECT;
+       RKCODEC_WRITE(sc, CODEC_DAC_SELECT, val);
+
+       val = RKCODEC_READ(sc, CODEC_HPMIX_CTRL);
+       val |= HPMIX_CTRL_HPMIXL_INIT2_EN | HPMIX_CTRL_HPMIXR_INIT2_EN;
+       RKCODEC_WRITE(sc, CODEC_HPMIX_CTRL, val);
+
+       val = RKCODEC_READ(sc, CODEC_HPOUT_CTRL);
+       val |= HPOUT_CTRL_HPOUTL_UNMUTE | HPOUT_CTRL_HPOUTR_UNMUTE;
+       RKCODEC_WRITE(sc, CODEC_HPOUT_CTRL, val);
+
+       RKCODEC_WRITE(sc, CODEC_HPOUTL_GAIN_CTRL, 0x1f);
+       RKCODEC_WRITE(sc, CODEC_HPOUTR_GAIN_CTRL, 0x1f);
+
+       rkcodec_set_mute(sc, false);
+
+       node = ofw_bus_get_node(dev);
+       OF_device_register_xref(OF_xref_from_node(node), dev);
+
+       return (0);
+
+fail:
+       rkcodec_detach(dev);
+       return (error);
+}
+
+static int
+rkcodec_detach(device_t dev)
+{
+       struct rkcodec_softc *sc;
+
+       sc = device_get_softc(dev);
+
+       if (sc->res)
+               bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->res);
+       mtx_destroy(&sc->mtx);
+
+       return (0);
+}
+
+static int
+rkcodec_mixer_init(struct snd_mixer *m)
+{
+
+       mix_setdevs(m, RKCODEC_MIXER_DEVS);
+
+       return (0);
+}
+
+static int
+rkcodec_mixer_uninit(struct snd_mixer *m)
+{
+
+       return (0);
+}
+
+static int
+rkcodec_mixer_reinit(struct snd_mixer *m)
+{
+
+       return (0);
+}
+
+static int
+rkcodec_mixer_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned 
right)
+{
+       struct rkcodec_softc *sc;
+       struct mtx *mixer_lock;
+       uint8_t do_unlock;
+
+       sc = device_get_softc(mix_getdevinfo(m));
+       mixer_lock = mixer_get_lock(m);
+
+       if (mtx_owned(mixer_lock)) {
+               do_unlock = 0;
+       } else {
+               do_unlock = 1;
+               mtx_lock(mixer_lock);
+       }
+
+       right = left;
+
+       RKCODEC_LOCK(sc);
+       switch(dev) {
+       case SOUND_MIXER_VOLUME:
+               printf("[%s] %s:%d\n", __func__, __FILE__, __LINE__);
+               break;
+
+       case SOUND_MIXER_MIC:
+               printf("[%s] %s:%d\n", __func__, __FILE__, __LINE__);
+               break;
+       default:
+               break;
+       }
+       RKCODEC_UNLOCK(sc);
+
+       if (do_unlock) {
+               mtx_unlock(mixer_lock);
+       }
+
+       return (left | (right << 8));
+}
+
+static unsigned
+rkcodec_mixer_setrecsrc(struct snd_mixer *m, unsigned src)
+{
+
+       return (0);
+}
+
+static kobj_method_t rkcodec_mixer_methods[] = {
+       KOBJMETHOD(mixer_init,          rkcodec_mixer_init),
+       KOBJMETHOD(mixer_uninit,        rkcodec_mixer_uninit),
+       KOBJMETHOD(mixer_reinit,        rkcodec_mixer_reinit),
+       KOBJMETHOD(mixer_set,           rkcodec_mixer_set),
+       KOBJMETHOD(mixer_setrecsrc,     rkcodec_mixer_setrecsrc),
+       KOBJMETHOD_END
+};
+
+MIXER_DECLARE(rkcodec_mixer);
+
+static int
+rkcodec_dai_init(device_t dev, uint32_t format)
+{
+       struct rkcodec_softc *sc;
+       int fmt, pol, clk;
+       uint32_t ctrl1, ctrl2, ctrl3;
+
+       sc = device_get_softc(dev);
+
+       fmt = AUDIO_DAI_FORMAT_FORMAT(format);
+       pol = AUDIO_DAI_FORMAT_POLARITY(format);
+       clk = AUDIO_DAI_FORMAT_CLOCK(format);
+
+       ctrl1 = RKCODEC_READ(sc, CODEC_DAC_INIT_CTRL1);
+       ctrl2 = RKCODEC_READ(sc, CODEC_DAC_INIT_CTRL2);
+       ctrl3 = RKCODEC_READ(sc, CODEC_DAC_INIT_CTRL3);
+
+       ctrl3 &= ~(DAC_INIT_CTRL3_DAC_BCP_MASK);
+       switch (pol) {
+       case AUDIO_DAI_POLARITY_IB_NF:
+               ctrl3 |= DAC_INIT_CTRL3_DAC_BCP_REVERSAL;
+               break;
+       case AUDIO_DAI_POLARITY_NB_NF:
+               ctrl3 |= DAC_INIT_CTRL3_DAC_BCP_NORMAL;
+               break;
+       default:
+               return (EINVAL);
+       }
+
+       ctrl1 &= ~(DAC_INIT_CTRL1_MODE_MASK);
+       switch (clk) {
+       case AUDIO_DAI_CLOCK_CBM_CFM:
+               ctrl1 |= DAC_INIT_CTRL1_DIRECTION_OUT |
+                   DAC_INIT_CTRL1_DAC_I2S_MODE_SLAVE;
+               break;
+       case AUDIO_DAI_CLOCK_CBS_CFS:
+               ctrl1 |= DAC_INIT_CTRL1_DIRECTION_IN |
+                   DAC_INIT_CTRL1_DAC_I2S_MODE_SLAVE;
+               break;
+       default:
+               return (EINVAL);
+       }
+
+       ctrl2 &= ~(DAC_INIT_CTRL2_DAC_VDL_MASK | DAC_INIT_CTRL2_DAC_MODE_MASK);
+       ctrl2 |= DAC_INIT_CTRL2_DAC_VDL_16BITS;
+       ctrl3 &= ~(DAC_INIT_CTRL3_WL_MASK);
+       ctrl3 |= DAC_INIT_CTRL3_WL_32BITS;
+       switch (fmt) {
+       case AUDIO_DAI_FORMAT_I2S:
+               ctrl2 |= DAC_INIT_CTRL2_DAC_MODE_I2S;
+               break;
+       case AUDIO_DAI_FORMAT_LJ:
+               ctrl2 |= DAC_INIT_CTRL2_DAC_MODE_LJM;
+               break;
+       case AUDIO_DAI_FORMAT_RJ:
+               ctrl2 |= DAC_INIT_CTRL2_DAC_MODE_RJM;
+               break;
+       default:
+               return EINVAL;
+       }
+
+       ctrl3 &= ~(DAC_INIT_CTRL3_RST_MASK);
+       ctrl3 |= DAC_INIT_CTRL3_RST_DIS;
+
+       RKCODEC_WRITE(sc, CODEC_DAC_INIT_CTRL1, ctrl1);
+       RKCODEC_WRITE(sc, CODEC_DAC_INIT_CTRL2, ctrl2);
+       RKCODEC_WRITE(sc, CODEC_DAC_INIT_CTRL3, ctrl3);
+
+       return (0);
+}
+
+static int
+rkcodec_dai_trigger(device_t dev, int go, int pcm_dir)
+{
+       // struct rkcodec_softc         *sc = device_get_softc(dev);
+
+       if ((pcm_dir != PCMDIR_PLAY) && (pcm_dir != PCMDIR_REC))
+               return (EINVAL);
+
+       switch (go) {
+       case PCMTRIG_START:
+               if (pcm_dir == PCMDIR_PLAY) {
+                       printf("[%s] %s:%d\n", __func__, __FILE__, __LINE__);
+               }
+               else if (pcm_dir == PCMDIR_REC) {
+                       printf("[%s] %s:%d\n", __func__, __FILE__, __LINE__);
+               }
+               break;
+
+       case PCMTRIG_STOP:
+       case PCMTRIG_ABORT:
+               if (pcm_dir == PCMDIR_PLAY) {
+                       printf("[%s] %s:%d\n", __func__, __FILE__, __LINE__);
+               }
+               else if (pcm_dir == PCMDIR_REC) {
+                       printf("[%s] %s:%d\n", __func__, __FILE__, __LINE__);
+               }
+               break;
+       }
+
+       return (0);
+}
+
+static int
+rkcodec_dai_setup_mixer(device_t dev, device_t pcmdev)
+{
+
+       mixer_init(pcmdev, &rkcodec_mixer_class, dev);
+
+       return (0);
+}
+
+static device_method_t rkcodec_methods[] = {
+       /* Device interface */
+       DEVMETHOD(device_probe,         rkcodec_probe),
+       DEVMETHOD(device_attach,        rkcodec_attach),
+       DEVMETHOD(device_detach,        rkcodec_detach),
+
+       DEVMETHOD(audio_dai_init,       rkcodec_dai_init),
+       DEVMETHOD(audio_dai_setup_mixer,        rkcodec_dai_setup_mixer),
+       DEVMETHOD(audio_dai_trigger,    rkcodec_dai_trigger),
+
+       DEVMETHOD_END
+};
+
+static driver_t rkcodec_driver = {
+       "rk3328codec",
+       rkcodec_methods,
+       sizeof(struct rkcodec_softc),
+};
+
+static devclass_t rkcodec_devclass;
+
+DRIVER_MODULE(rkcodec, simplebus, rkcodec_driver, rkcodec_devclass, 0, 0);
+SIMPLEBUS_PNP_INFO(compat_data);
diff --git a/sys/arm64/rockchip/rk_i2s.c b/sys/arm64/rockchip/rk_i2s.c
new file mode 100644
index 000000000000..8f53d8581d5c
--- /dev/null
+++ b/sys/arm64/rockchip/rk_i2s.c
@@ -0,0 +1,657 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2019 Oleksandr Tymoshenko <[email protected]>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/rman.h>
+#include <sys/resource.h>
+#include <machine/bus.h>
+
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <dev/extres/clk/clk.h>
+#include <dev/extres/hwreset/hwreset.h>
+#include <dev/extres/syscon/syscon.h>
+
+#include "syscon_if.h"
+
+#include "opt_snd.h"
+#include <dev/sound/pcm/sound.h>
+#include <dev/sound/fdt/audio_dai.h>
+#include "audio_dai_if.h"
+
+#define        AUDIO_BUFFER_SIZE       48000 * 4
+
+#define        I2S_TXCR        0x0000
+#define                I2S_CSR_2               (0 << 15)
+#define                I2S_CSR_4               (1 << 15)
+#define                I2S_CSR_6               (2 << 15)
+#define                I2S_CSR_8               (3 << 15)
+#define                I2S_TXCR_IBM_NORMAL     (0 << 9)
+#define                I2S_TXCR_IBM_LJ         (1 << 9)
+#define                I2S_TXCR_IBM_RJ         (2 << 9)
+#define                I2S_TXCR_PBM_NODELAY    (0 << 7)
+#define                I2S_TXCR_PBM_1          (1 << 7)
+#define                I2S_TXCR_PBM_2          (2 << 7)
+#define                I2S_TXCR_PBM_3          (3 << 7)
+#define                I2S_TXCR_TFS_I2S        (0 << 5)
+#define                I2S_TXCR_TFS_PCM        (1 << 5)
+#define                I2S_TXCR_VDW_16         (0xf << 0)
+#define        I2S_RXCR        0x0004
+#define                I2S_RXCR_IBM_NORMAL     (0 << 9)
+#define                I2S_RXCR_IBM_LJ         (1 << 9)
+#define                I2S_RXCR_IBM_RJ         (2 << 9)
+#define                I2S_RXCR_PBM_NODELAY    (0 << 7)
+#define                I2S_RXCR_PBM_1          (1 << 7)
+#define                I2S_RXCR_PBM_2          (2 << 7)
+#define                I2S_RXCR_PBM_3          (3 << 7)
+#define                I2S_RXCR_TFS_I2S        (0 << 5)
+#define                I2S_RXCR_TFS_PCM        (1 << 5)
+#define                I2S_RXCR_VDW_16         (0xf << 0)
+#define        I2S_CKR         0x0008
+#define                I2S_CKR_MSS_MASK        (1 << 27)
+#define                I2S_CKR_MSS_MASTER      (0 << 27)
+#define                I2S_CKR_MSS_SLAVE       (1 << 27)
+#define                I2S_CKR_CKP             (1 << 26)
+#define                I2S_CKR_MDIV(n)         (((n) - 1) << 16)
+#define                I2S_CKR_MDIV_MASK       (0xff << 16)
+#define                I2S_CKR_RSD(n)          (((n) - 1) << 8)
+#define                I2S_CKR_RSD_MASK        (0xff << 8)
+#define                I2S_CKR_TSD(n)          (((n) - 1) << 0)
+#define                I2S_CKR_TSD_MASK        (0xff << 0)
+#define        I2S_TXFIFOLR    0x000c
+#define                TXFIFO0LR_MASK          0x3f
+#define        I2S_DMACR       0x0010
+#define                I2S_DMACR_RDE_ENABLE    (1 << 24)
+#define                I2S_DMACR_RDL(n)        ((n) << 16)
+#define                I2S_DMACR_TDE_ENABLE    (1 << 8)
+#define                I2S_DMACR_TDL(n)        ((n) << 0)
+#define        I2S_INTCR       0x0014
+#define                I2S_INTCR_RFT(n)        (((n) - 1) << 20)
+#define                I2S_INTCR_TFT(n)        (((n) - 1) << 4)
+#define                I2S_INTCR_RXFIE         (1 << 16)
+#define                I2S_INTCR_TXUIC         (1 << 2)
+#define                I2S_INTCR_TXEIE         (1 << 0)
+#define        I2S_INTSR       0x0018
+#define                I2S_INTSR_RXFI          (1 << 16)
+#define                I2S_INTSR_TXUI          (1 << 1)
+#define                I2S_INTSR_TXEI          (1 << 0)
+#define        I2S_XFER        0x001c
+#define                I2S_XFER_RXS_START      (1 << 1)
+#define                I2S_XFER_TXS_START      (1 << 0)
+#define        I2S_CLR         0x0020
+#define                I2S_CLR_RXC             (1 << 1)
+#define                I2S_CLR_TXC             (1 << 0)
+#define        I2S_TXDR        0x0024
+#define        I2S_RXDR        0x0028
+#define        I2S_RXFIFOLR    0x002c
+#define                RXFIFO0LR_MASK          0x3f
+
+/* syscon */
+#define        GRF_SOC_CON8                    0xe220
+#define        I2S_IO_DIRECTION_MASK           7
+#define        I2S_IO_DIRECTION_SHIFT          11
+#define        I2S_IO_8CH_OUT_2CH_IN           0
+#define        I2S_IO_6CH_OUT_4CH_IN           4
+#define        I2S_IO_4CH_OUT_6CH_IN           6
+#define        I2S_IO_2CH_OUT_8CH_IN           7
+
+#define DIV_ROUND_CLOSEST(n,d)  (((n) + (d) / 2) / (d))
+
+#define        RK_I2S_SAMPLING_RATE    48000
+#define        FIFO_SIZE       32
+
+static struct ofw_compat_data compat_data[] = {
+       { "rockchip,rk3066-i2s",                1 },
+       { "rockchip,rk3399-i2s",                1 },
+       { NULL,                                 0 }
+};
+
+static struct resource_spec rk_i2s_spec[] = {
+       { SYS_RES_MEMORY,       0,      RF_ACTIVE },
+       { SYS_RES_IRQ,          0,      RF_ACTIVE | RF_SHAREABLE },
+       { -1, 0 }
+};
+
+struct rk_i2s_softc {
+       device_t        dev;
+       struct resource *res[2];
+       struct mtx      mtx;
+       clk_t           clk;
+       clk_t           hclk;
+       void *          intrhand;
+       struct syscon   *grf;
+       /* pointers to playback/capture buffers */
+       uint32_t        play_ptr;
+       uint32_t        rec_ptr;
+};
+
+#define        RK_I2S_LOCK(sc)                 mtx_lock(&(sc)->mtx)
+#define        RK_I2S_UNLOCK(sc)               mtx_unlock(&(sc)->mtx)
+#define        RK_I2S_READ_4(sc, reg)          bus_read_4((sc)->res[0], (reg))
+#define        RK_I2S_WRITE_4(sc, reg, val)    bus_write_4((sc)->res[0], 
(reg), (val))
+
+static int rk_i2s_probe(device_t dev);
+static int rk_i2s_attach(device_t dev);
+static int rk_i2s_detach(device_t dev);
+
+static uint32_t sc_fmt[] = {
+       SND_FORMAT(AFMT_S16_LE, 2, 0),
+       0
+};
+static struct pcmchan_caps rk_i2s_caps = {RK_I2S_SAMPLING_RATE, 
RK_I2S_SAMPLING_RATE, sc_fmt, 0};
+
+
+static int
+rk_i2s_init(struct rk_i2s_softc *sc)
+{
+       uint32_t val;
+       int error;
+
+       clk_set_freq(sc->clk, RK_I2S_SAMPLING_RATE * 256,
+           CLK_SET_ROUND_DOWN);
+       error = clk_enable(sc->clk);
+       if (error != 0) {
+               device_printf(sc->dev, "cannot enable i2s_clk clock\n");
+               return (ENXIO);
+       }
+
+       val = I2S_INTCR_TFT(FIFO_SIZE/2);
+       val |= I2S_INTCR_RFT(FIFO_SIZE/2);
+       RK_I2S_WRITE_4(sc, I2S_INTCR, val);
+
+       if (sc->grf) {
+               val = (I2S_IO_2CH_OUT_8CH_IN << I2S_IO_DIRECTION_SHIFT);
+               val |= (I2S_IO_DIRECTION_MASK << I2S_IO_DIRECTION_SHIFT) << 16;
+               SYSCON_WRITE_4(sc->grf, GRF_SOC_CON8, val);
+
+               #if 0
+               // HACK: enable IO domain
+               val = (1 << 1);
+               val |= (1 << 1) << 16;
+               SYSCON_WRITE_4(sc->grf, 0xe640, val);
+               #endif
+       }
+
+       RK_I2S_WRITE_4(sc, I2S_XFER, 0);
+
+       return (0);
+}
+
+static int
+rk_i2s_probe(device_t dev)
+{
+       if (!ofw_bus_status_okay(dev))
+               return (ENXIO);
+
+       if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
+               return (ENXIO);
+
+       device_set_desc(dev, "Rockchip I2S");
+       return (BUS_PROBE_DEFAULT);
+}
+
+static int
+rk_i2s_attach(device_t dev)
+{
+       struct rk_i2s_softc *sc;
+       int error;
+       phandle_t node;
+
+       sc = device_get_softc(dev);
+       sc->dev = dev;
+
+       mtx_init(&sc->mtx, device_get_nameunit(dev), NULL, MTX_DEF);
+
+       if (bus_alloc_resources(dev, rk_i2s_spec, sc->res) != 0) {
+               device_printf(dev, "cannot allocate resources for device\n");
+               error = ENXIO;
+               goto fail;
+       }
+
+       error = clk_get_by_ofw_name(dev, 0, "i2s_hclk", &sc->hclk);
+       if (error != 0) {
+               device_printf(dev, "cannot get i2s_hclk clock\n");
+               goto fail;
+       }
+
+       error = clk_get_by_ofw_name(dev, 0, "i2s_clk", &sc->clk);
+       if (error != 0) {
+               device_printf(dev, "cannot get i2s_clk clock\n");
+               goto fail;
+       }
+
+       /* Activate the module clock. */
+       error = clk_enable(sc->hclk);
+       if (error != 0) {
+               device_printf(dev, "cannot enable i2s_hclk clock\n");
+               goto fail;
+       }
+
+       node = ofw_bus_get_node(dev);
+       if (OF_hasprop(node, "rockchip,grf") &&
+           syscon_get_by_ofw_property(dev, node,
+           "rockchip,grf", &sc->grf) != 0) {
+               device_printf(dev, "cannot get grf driver handle\n");
+               return (ENXIO);
+       }
+
+       rk_i2s_init(sc);
+
+       OF_device_register_xref(OF_xref_from_node(node), dev);
+
+       return (0);
+
+fail:
+       rk_i2s_detach(dev);
+       return (error);
+}
+
+static int
+rk_i2s_detach(device_t dev)
+{
+       struct rk_i2s_softc *i2s;
+
+       i2s = device_get_softc(dev);
+
+       if (i2s->hclk != NULL)
+               clk_release(i2s->hclk);
+       if (i2s->clk)
+               clk_release(i2s->clk);
+
+       if (i2s->intrhand != NULL)
+               bus_teardown_intr(i2s->dev, i2s->res[1], i2s->intrhand);
+
+       bus_release_resources(dev, rk_i2s_spec, i2s->res);
+       mtx_destroy(&i2s->mtx);
+
+       return (0);
+}
+
+static int
+rk_i2s_dai_init(device_t dev, uint32_t format)
+{
+       uint32_t val, txcr, rxcr;
+       struct rk_i2s_softc *sc;
+       int fmt, pol, clk;
+
+       sc = device_get_softc(dev);
+
+       fmt = AUDIO_DAI_FORMAT_FORMAT(format);
+       pol = AUDIO_DAI_FORMAT_POLARITY(format);
+       clk = AUDIO_DAI_FORMAT_CLOCK(format);
+
+       /* Set format */
+       val = RK_I2S_READ_4(sc, I2S_CKR);
+
+       val &= ~(I2S_CKR_MSS_MASK);
+       switch (clk) {
+       case AUDIO_DAI_CLOCK_CBM_CFM:
+               val |= I2S_CKR_MSS_MASTER;
+               break;
+       case AUDIO_DAI_CLOCK_CBS_CFS:
+               val |= I2S_CKR_MSS_SLAVE;
+               break;
+       default:
+               return (EINVAL);
+       }
+
+       switch (pol) {
+       case AUDIO_DAI_POLARITY_IB_NF:
+               val |= I2S_CKR_CKP;
+               break;
+       case AUDIO_DAI_POLARITY_NB_NF:
+               val &= ~I2S_CKR_CKP;
+               break;
+       default:
+               return (EINVAL);
+       }
+
+       RK_I2S_WRITE_4(sc, I2S_CKR, val);
+
+       txcr = I2S_TXCR_VDW_16 | I2S_CSR_2;
+       rxcr = I2S_RXCR_VDW_16 | I2S_CSR_2;
+
+       switch (fmt) {
+       case AUDIO_DAI_FORMAT_I2S:
+               txcr |= I2S_TXCR_IBM_NORMAL;
+               rxcr |= I2S_RXCR_IBM_NORMAL;
+               break;
+       case AUDIO_DAI_FORMAT_LJ:
+               txcr |= I2S_TXCR_IBM_LJ;
+               rxcr |= I2S_RXCR_IBM_LJ;
+               break;
+       case AUDIO_DAI_FORMAT_RJ:
*** 314 LINES SKIPPED ***

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