diff options
-rw-r--r-- | sound/soc/tegra/Kconfig | 9 | ||||
-rw-r--r-- | sound/soc/tegra/Makefile | 2 | ||||
-rw-r--r-- | sound/soc/tegra/tegra210_mvc.c | 645 | ||||
-rw-r--r-- | sound/soc/tegra/tegra210_mvc.h | 117 |
4 files changed, 773 insertions, 0 deletions
diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig index 83c87f35a7d3..b8825e9ca324 100644 --- a/sound/soc/tegra/Kconfig +++ b/sound/soc/tegra/Kconfig @@ -108,6 +108,15 @@ config SND_SOC_TEGRA210_ADMAIF channel. Buffer size is configurable for each ADMAIIF channel. Say Y or M if you want to add support for Tegra210 ADMAIF module. +config SND_SOC_TEGRA210_MVC + tristate "Tegra210 MVC module" + help + Config to enable the digital Master Volume Controller (MVC) which + provides gain or attenuation to a digital signal path. It can be + used in input or output signal path. It can be used either for + per-stream volume control or for master volume control. + Say Y or M if you want to add support for Tegra210 MVC module. + config SND_SOC_TEGRA_AUDIO_GRAPH_CARD tristate "Audio Graph Card based Tegra driver" depends on SND_AUDIO_GRAPH_CARD diff --git a/sound/soc/tegra/Makefile b/sound/soc/tegra/Makefile index e2cec9ae31c9..b58d04104c17 100644 --- a/sound/soc/tegra/Makefile +++ b/sound/soc/tegra/Makefile @@ -13,6 +13,7 @@ snd-soc-tegra210-dmic-objs := tegra210_dmic.o snd-soc-tegra210-i2s-objs := tegra210_i2s.o snd-soc-tegra186-dspk-objs := tegra186_dspk.o snd-soc-tegra210-admaif-objs := tegra210_admaif.o +snd-soc-tegra210-mvc-objs := tegra210_mvc.o obj-$(CONFIG_SND_SOC_TEGRA) += snd-soc-tegra-pcm.o obj-$(CONFIG_SND_SOC_TEGRA20_AC97) += snd-soc-tegra20-ac97.o @@ -26,6 +27,7 @@ obj-$(CONFIG_SND_SOC_TEGRA210_AHUB) += snd-soc-tegra210-ahub.o obj-$(CONFIG_SND_SOC_TEGRA210_I2S) += snd-soc-tegra210-i2s.o obj-$(CONFIG_SND_SOC_TEGRA186_DSPK) += snd-soc-tegra186-dspk.o obj-$(CONFIG_SND_SOC_TEGRA210_ADMAIF) += snd-soc-tegra210-admaif.o +obj-$(CONFIG_SND_SOC_TEGRA210_MVC) += snd-soc-tegra210-mvc.o # Tegra machine Support snd-soc-tegra-wm8903-objs := tegra_wm8903.o diff --git a/sound/soc/tegra/tegra210_mvc.c b/sound/soc/tegra/tegra210_mvc.c new file mode 100644 index 000000000000..3646ce9b0fd1 --- /dev/null +++ b/sound/soc/tegra/tegra210_mvc.c @@ -0,0 +1,645 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// tegra210_mvc.c - Tegra210 MVC driver +// +// Copyright (c) 2021 NVIDIA CORPORATION. All rights reserved. + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include "tegra210_mvc.h" +#include "tegra_cif.h" + +static const struct reg_default tegra210_mvc_reg_defaults[] = { + { TEGRA210_MVC_RX_INT_MASK, 0x00000001}, + { TEGRA210_MVC_RX_CIF_CTRL, 0x00007700}, + { TEGRA210_MVC_TX_INT_MASK, 0x00000001}, + { TEGRA210_MVC_TX_CIF_CTRL, 0x00007700}, + { TEGRA210_MVC_CG, 0x1}, + { TEGRA210_MVC_CTRL, TEGRA210_MVC_CTRL_DEFAULT}, + { TEGRA210_MVC_INIT_VOL, 0x00800000}, + { TEGRA210_MVC_TARGET_VOL, 0x00800000}, + { TEGRA210_MVC_DURATION, 0x000012c0}, + { TEGRA210_MVC_DURATION_INV, 0x0006d3a0}, + { TEGRA210_MVC_POLY_N1, 0x0000007d}, + { TEGRA210_MVC_POLY_N2, 0x00000271}, + { TEGRA210_MVC_PEAK_CTRL, 0x000012c0}, + { TEGRA210_MVC_CFG_RAM_CTRL, 0x00004000}, +}; + +static const struct tegra210_mvc_gain_params gain_params = { + .poly_coeff = { 23738319, 659403, -3680, + 15546680, 2530732, -120985, + 12048422, 5527252, -785042 }, + .poly_n1 = 16, + .poly_n2 = 63, + .duration = 150, + .duration_inv = 14316558, +}; + +static int __maybe_unused tegra210_mvc_runtime_suspend(struct device *dev) +{ + struct tegra210_mvc *mvc = dev_get_drvdata(dev); + + regmap_read(mvc->regmap, TEGRA210_MVC_CTRL, &(mvc->ctrl_value)); + + regcache_cache_only(mvc->regmap, true); + regcache_mark_dirty(mvc->regmap); + + return 0; +} + +static int __maybe_unused tegra210_mvc_runtime_resume(struct device *dev) +{ + struct tegra210_mvc *mvc = dev_get_drvdata(dev); + + regcache_cache_only(mvc->regmap, false); + regcache_sync(mvc->regmap); + + regmap_write(mvc->regmap, TEGRA210_MVC_CTRL, mvc->ctrl_value); + regmap_update_bits(mvc->regmap, + TEGRA210_MVC_SWITCH, + TEGRA210_MVC_VOLUME_SWITCH_MASK, + TEGRA210_MVC_VOLUME_SWITCH_TRIGGER); + + return 0; +} + +static void tegra210_mvc_write_ram(struct regmap *regmap) +{ + int i; + + regmap_write(regmap, TEGRA210_MVC_CFG_RAM_CTRL, + TEGRA210_MVC_CFG_RAM_CTRL_SEQ_ACCESS_EN | + TEGRA210_MVC_CFG_RAM_CTRL_ADDR_INIT_EN | + TEGRA210_MVC_CFG_RAM_CTRL_RW_WRITE); + + for (i = 0; i < NUM_GAIN_POLY_COEFFS; i++) + regmap_write(regmap, TEGRA210_MVC_CFG_RAM_DATA, + gain_params.poly_coeff[i]); +} + +static void tegra210_mvc_conv_vol(struct tegra210_mvc *mvc, u8 chan, s32 val) +{ + /* + * Volume control read from mixer control is with + * 100x scaling; for CURVE_POLY the reg range + * is 0-100 (linear, Q24) and for CURVE_LINEAR + * it is -120dB to +40dB (Q8) + */ + if (mvc->curve_type == CURVE_POLY) { + if (val > 10000) + val = 10000; + mvc->volume[chan] = ((val * (1<<8)) / 100) << 16; + } else { + val -= 12000; + mvc->volume[chan] = (val * (1<<8)) / 100; + } +} + +static int tegra210_mvc_get_mute(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt); + u8 mute_mask; + u32 val; + + pm_runtime_get_sync(cmpnt->dev); + regmap_read(mvc->regmap, TEGRA210_MVC_CTRL, &val); + pm_runtime_put(cmpnt->dev); + + mute_mask = (val >> TEGRA210_MVC_MUTE_SHIFT) & + TEGRA210_MUTE_MASK_EN; + + ucontrol->value.integer.value[0] = mute_mask; + + return 0; +} + +static int tegra210_mvc_put_mute(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt); + unsigned int value; + u8 mute_mask; + int err; + + pm_runtime_get_sync(cmpnt->dev); + + /* Check if VOLUME_SWITCH is triggered */ + err = regmap_read_poll_timeout(mvc->regmap, TEGRA210_MVC_SWITCH, + value, !(value & TEGRA210_MVC_VOLUME_SWITCH_MASK), + 10, 10000); + if (err < 0) + goto end; + + mute_mask = ucontrol->value.integer.value[0]; + + err = regmap_update_bits(mvc->regmap, mc->reg, + TEGRA210_MVC_MUTE_MASK, + mute_mask << TEGRA210_MVC_MUTE_SHIFT); + if (err < 0) + goto end; + + return 1; + +end: + pm_runtime_put(cmpnt->dev); + return err; +} + +static int tegra210_mvc_get_vol(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt); + u8 chan = (mc->reg - TEGRA210_MVC_TARGET_VOL) / REG_SIZE; + s32 val = mvc->volume[chan]; + + if (mvc->curve_type == CURVE_POLY) { + val = ((val >> 16) * 100) >> 8; + } else { + val = (val * 100) >> 8; + val += 12000; + } + + ucontrol->value.integer.value[0] = val; + + return 0; +} + +static int tegra210_mvc_put_vol(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt); + unsigned int reg = mc->reg; + unsigned int value; + u8 chan; + int err; + + pm_runtime_get_sync(cmpnt->dev); + + /* Check if VOLUME_SWITCH is triggered */ + err = regmap_read_poll_timeout(mvc->regmap, TEGRA210_MVC_SWITCH, + value, !(value & TEGRA210_MVC_VOLUME_SWITCH_MASK), + 10, 10000); + if (err < 0) + goto end; + + chan = (reg - TEGRA210_MVC_TARGET_VOL) / REG_SIZE; + + tegra210_mvc_conv_vol(mvc, chan, + ucontrol->value.integer.value[0]); + + /* Configure init volume same as target volume */ + regmap_write(mvc->regmap, + TEGRA210_MVC_REG_OFFSET(TEGRA210_MVC_INIT_VOL, chan), + mvc->volume[chan]); + + regmap_write(mvc->regmap, reg, mvc->volume[chan]); + + regmap_update_bits(mvc->regmap, TEGRA210_MVC_SWITCH, + TEGRA210_MVC_VOLUME_SWITCH_MASK, + TEGRA210_MVC_VOLUME_SWITCH_TRIGGER); + + return 1; + +end: + pm_runtime_put(cmpnt->dev); + return err; +} + +static void tegra210_mvc_reset_vol_settings(struct tegra210_mvc *mvc, + struct device *dev) +{ + int i; + + /* Change volume to default init for new curve type */ + if (mvc->curve_type == CURVE_POLY) { + for (i = 0; i < TEGRA210_MVC_MAX_CHAN_COUNT; i++) + mvc->volume[i] = TEGRA210_MVC_INIT_VOL_DEFAULT_POLY; + } else { + for (i = 0; i < TEGRA210_MVC_MAX_CHAN_COUNT; i++) + mvc->volume[i] = TEGRA210_MVC_INIT_VOL_DEFAULT_LINEAR; + } + + pm_runtime_get_sync(dev); + + /* Program curve type */ + regmap_update_bits(mvc->regmap, TEGRA210_MVC_CTRL, + TEGRA210_MVC_CURVE_TYPE_MASK, + mvc->curve_type << + TEGRA210_MVC_CURVE_TYPE_SHIFT); + + /* Init volume for all channels */ + for (i = 0; i < TEGRA210_MVC_MAX_CHAN_COUNT; i++) { + regmap_write(mvc->regmap, + TEGRA210_MVC_REG_OFFSET(TEGRA210_MVC_INIT_VOL, i), + mvc->volume[i]); + regmap_write(mvc->regmap, + TEGRA210_MVC_REG_OFFSET(TEGRA210_MVC_TARGET_VOL, i), + mvc->volume[i]); + } + + /* Trigger volume switch */ + regmap_update_bits(mvc->regmap, TEGRA210_MVC_SWITCH, + TEGRA210_MVC_VOLUME_SWITCH_MASK, + TEGRA210_MVC_VOLUME_SWITCH_TRIGGER); + + pm_runtime_put(dev); +} + +static int tegra210_mvc_get_curve_type(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt); + + ucontrol->value.integer.value[0] = mvc->curve_type; + + return 0; +} + +static int tegra210_mvc_put_curve_type(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct tegra210_mvc *mvc = snd_soc_component_get_drvdata(cmpnt); + int value; + + regmap_read(mvc->regmap, TEGRA210_MVC_ENABLE, &value); + if (value & TEGRA210_MVC_EN) { + dev_err(cmpnt->dev, + "Curve type can't be set when MVC is running\n"); + return -EINVAL; + } + + if (mvc->curve_type == ucontrol->value.integer.value[0]) + return 0; + + mvc->curve_type = ucontrol->value.integer.value[0]; + + tegra210_mvc_reset_vol_settings(mvc, cmpnt->dev); + + return 1; +} + +static int tegra210_mvc_set_audio_cif(struct tegra210_mvc *mvc, + struct snd_pcm_hw_params *params, + unsigned int reg) +{ + unsigned int channels, audio_bits; + struct tegra_cif_conf cif_conf; + + memset(&cif_conf, 0, sizeof(struct tegra_cif_conf)); + + channels = params_channels(params); + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + audio_bits = TEGRA_ACIF_BITS_16; + break; + case SNDRV_PCM_FORMAT_S32_LE: + audio_bits = TEGRA_ACIF_BITS_32; + break; + default: + return -EINVAL; + } + + cif_conf.audio_ch = channels; + cif_conf.client_ch = channels; + cif_conf.audio_bits = audio_bits; + cif_conf.client_bits = audio_bits; + + tegra_set_cif(mvc->regmap, reg, &cif_conf); + + return 0; +} + +static int tegra210_mvc_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct device *dev = dai->dev; + struct tegra210_mvc *mvc = snd_soc_dai_get_drvdata(dai); + int err, val; + + /* + * Soft Reset: Below performs module soft reset which clears + * all FSM logic, flushes flow control of FIFO and resets the + * state register. It also brings module back to disabled + * state (without flushing the data in the pipe). + */ + regmap_write(mvc->regmap, TEGRA210_MVC_SOFT_RESET, 1); + + err = regmap_read_poll_timeout(mvc->regmap, TEGRA210_MVC_SOFT_RESET, + val, !val, 10, 10000); + if (err < 0) { + dev_err(dev, "SW reset failed, err = %d\n", err); + return err; + } + + /* Set RX CIF */ + err = tegra210_mvc_set_audio_cif(mvc, params, TEGRA210_MVC_RX_CIF_CTRL); + if (err) { + dev_err(dev, "Can't set MVC RX CIF: %d\n", err); + return err; + } + + /* Set TX CIF */ + err = tegra210_mvc_set_audio_cif(mvc, params, TEGRA210_MVC_TX_CIF_CTRL); + if (err) { + dev_err(dev, "Can't set MVC TX CIF: %d\n", err); + return err; + } + + tegra210_mvc_write_ram(mvc->regmap); + + /* Program poly_n1, poly_n2, duration */ + regmap_write(mvc->regmap, TEGRA210_MVC_POLY_N1, gain_params.poly_n1); + regmap_write(mvc->regmap, TEGRA210_MVC_POLY_N2, gain_params.poly_n2); + regmap_write(mvc->regmap, TEGRA210_MVC_DURATION, gain_params.duration); + + /* Program duration_inv */ + regmap_write(mvc->regmap, TEGRA210_MVC_DURATION_INV, + gain_params.duration_inv); + + return 0; +} + +static struct snd_soc_dai_ops tegra210_mvc_dai_ops = { + .hw_params = tegra210_mvc_hw_params, +}; + +static const char * const tegra210_mvc_curve_type_text[] = { + "Poly", + "Linear", +}; + +static const struct soc_enum tegra210_mvc_curve_type_ctrl = + SOC_ENUM_SINGLE_EXT(2, tegra210_mvc_curve_type_text); + +#define TEGRA210_MVC_VOL_CTRL(chan) \ + SOC_SINGLE_EXT("Channel" #chan " Volume", \ + TEGRA210_MVC_REG_OFFSET(TEGRA210_MVC_TARGET_VOL, \ + (chan - 1)), \ + 0, 16000, 0, tegra210_mvc_get_vol, \ + tegra210_mvc_put_vol) + +static const struct snd_kcontrol_new tegra210_mvc_vol_ctrl[] = { + /* Per channel volume control */ + TEGRA210_MVC_VOL_CTRL(1), + TEGRA210_MVC_VOL_CTRL(2), + TEGRA210_MVC_VOL_CTRL(3), + TEGRA210_MVC_VOL_CTRL(4), + TEGRA210_MVC_VOL_CTRL(5), + TEGRA210_MVC_VOL_CTRL(6), + TEGRA210_MVC_VOL_CTRL(7), + TEGRA210_MVC_VOL_CTRL(8), + + /* Per channel mute */ + SOC_SINGLE_EXT("Per Chan Mute Mask", + TEGRA210_MVC_CTRL, 0, TEGRA210_MUTE_MASK_EN, 0, + tegra210_mvc_get_mute, tegra210_mvc_put_mute), + + SOC_ENUM_EXT("Curve Type", tegra210_mvc_curve_type_ctrl, + tegra210_mvc_get_curve_type, tegra210_mvc_put_curve_type), +}; + +static struct snd_soc_dai_driver tegra210_mvc_dais[] = { + /* Input */ + { + .name = "MVC-RX-CIF", + .playback = { + .stream_name = "RX-CIF-Playback", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, + .capture = { + .stream_name = "RX-CIF-Capture", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, + }, + + /* Output */ + { + .name = "MVC-TX-CIF", + .playback = { + .stream_name = "TX-CIF-Playback", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, + .capture = { + .stream_name = "TX-CIF-Capture", + .channels_min = 1, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_S16_LE | + SNDRV_PCM_FMTBIT_S32_LE, + }, + .ops = &tegra210_mvc_dai_ops, + } +}; + +static const struct snd_soc_dapm_widget tegra210_mvc_widgets[] = { + SND_SOC_DAPM_AIF_IN("RX", NULL, 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_OUT("TX", NULL, 0, TEGRA210_MVC_ENABLE, + TEGRA210_MVC_EN_SHIFT, 0), +}; + +#define MVC_ROUTES(sname) \ + { "RX XBAR-" sname, NULL, "XBAR-TX" }, \ + { "RX-CIF-" sname, NULL, "RX XBAR-" sname }, \ + { "RX", NULL, "RX-CIF-" sname }, \ + { "TX-CIF-" sname, NULL, "TX" }, \ + { "TX XBAR-" sname, NULL, "TX-CIF-" sname }, \ + { "XBAR-RX", NULL, "TX XBAR-" sname } + +static const struct snd_soc_dapm_route tegra210_mvc_routes[] = { + { "TX", NULL, "RX" }, + MVC_ROUTES("Playback"), + MVC_ROUTES("Capture"), +}; + +static const struct snd_soc_component_driver tegra210_mvc_cmpnt = { + .dapm_widgets = tegra210_mvc_widgets, + .num_dapm_widgets = ARRAY_SIZE(tegra210_mvc_widgets), + .dapm_routes = tegra210_mvc_routes, + .num_dapm_routes = ARRAY_SIZE(tegra210_mvc_routes), + .controls = tegra210_mvc_vol_ctrl, + .num_controls = ARRAY_SIZE(tegra210_mvc_vol_ctrl), +}; + +static bool tegra210_mvc_rd_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA210_MVC_RX_STATUS ... TEGRA210_MVC_CONFIG_ERR_TYPE: + return true; + default: + return false; + }; +} + +static bool tegra210_mvc_wr_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA210_MVC_RX_INT_MASK ... TEGRA210_MVC_RX_CIF_CTRL: + case TEGRA210_MVC_TX_INT_MASK ... TEGRA210_MVC_TX_CIF_CTRL: + case TEGRA210_MVC_ENABLE ... TEGRA210_MVC_CG: + case TEGRA210_MVC_CTRL ... TEGRA210_MVC_CFG_RAM_DATA: + return true; + default: + return false; + } +} + +static bool tegra210_mvc_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA210_MVC_RX_STATUS: + case TEGRA210_MVC_RX_INT_STATUS: + case TEGRA210_MVC_RX_INT_SET: + + case TEGRA210_MVC_TX_STATUS: + case TEGRA210_MVC_TX_INT_STATUS: + case TEGRA210_MVC_TX_INT_SET: + + case TEGRA210_MVC_SOFT_RESET: + case TEGRA210_MVC_STATUS: + case TEGRA210_MVC_INT_STATUS: + case TEGRA210_MVC_SWITCH: + case TEGRA210_MVC_CFG_RAM_CTRL: + case TEGRA210_MVC_CFG_RAM_DATA: + case TEGRA210_MVC_PEAK_VALUE: + case TEGRA210_MVC_CTRL: + return true; + default: + return false; + } +} + +static const struct regmap_config tegra210_mvc_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = TEGRA210_MVC_CONFIG_ERR_TYPE, + .writeable_reg = tegra210_mvc_wr_reg, + .readable_reg = tegra210_mvc_rd_reg, + .volatile_reg = tegra210_mvc_volatile_reg, + .reg_defaults = tegra210_mvc_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(tegra210_mvc_reg_defaults), + .cache_type = REGCACHE_FLAT, +}; + +static const struct of_device_id tegra210_mvc_of_match[] = { + { .compatible = "nvidia,tegra210-mvc" }, + {}, +}; +MODULE_DEVICE_TABLE(of, tegra210_mvc_of_match); + +static int tegra210_mvc_platform_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct tegra210_mvc *mvc; + void __iomem *regs; + int err; + + mvc = devm_kzalloc(dev, sizeof(*mvc), GFP_KERNEL); + if (!mvc) + return -ENOMEM; + + dev_set_drvdata(dev, mvc); + + mvc->curve_type = CURVE_LINEAR; + mvc->ctrl_value = TEGRA210_MVC_CTRL_DEFAULT; + + regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + mvc->regmap = devm_regmap_init_mmio(dev, regs, + &tegra210_mvc_regmap_config); + if (IS_ERR(mvc->regmap)) { + dev_err(dev, "regmap init failed\n"); + return PTR_ERR(mvc->regmap); + } + + regcache_cache_only(mvc->regmap, true); + + err = devm_snd_soc_register_component(dev, &tegra210_mvc_cmpnt, + tegra210_mvc_dais, + ARRAY_SIZE(tegra210_mvc_dais)); + if (err) { + dev_err(dev, "can't register MVC component, err: %d\n", err); + return err; + } + + pm_runtime_enable(dev); + + tegra210_mvc_reset_vol_settings(mvc, &pdev->dev); + + return 0; +} + +static int tegra210_mvc_platform_remove(struct platform_device *pdev) +{ + pm_runtime_disable(&pdev->dev); + + return 0; +} + +static const struct dev_pm_ops tegra210_mvc_pm_ops = { + SET_RUNTIME_PM_OPS(tegra210_mvc_runtime_suspend, + tegra210_mvc_runtime_resume, NULL) + SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) +}; + +static struct platform_driver tegra210_mvc_driver = { + .driver = { + .name = "tegra210-mvc", + .of_match_table = tegra210_mvc_of_match, + .pm = &tegra210_mvc_pm_ops, + }, + .probe = tegra210_mvc_platform_probe, + .remove = tegra210_mvc_platform_remove, +}; +module_platform_driver(tegra210_mvc_driver) + +MODULE_AUTHOR("Arun Shamanna Lakshmi <aruns@nvidia.com>"); +MODULE_DESCRIPTION("Tegra210 MVC ASoC driver"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/tegra/tegra210_mvc.h b/sound/soc/tegra/tegra210_mvc.h new file mode 100644 index 000000000000..def29c4c7257 --- /dev/null +++ b/sound/soc/tegra/tegra210_mvc.h @@ -0,0 +1,117 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * tegra210_mvc.h - Definitions for Tegra210 MVC driver + * + * Copyright (c) 2021 NVIDIA CORPORATION. All rights reserved. + * + */ + +#ifndef __TEGRA210_MVC_H__ +#define __TEGRA210_MVC_H__ + +/* + * MVC_RX registers are with respect to XBAR. + * The data comes from XBAR to MVC. + */ +#define TEGRA210_MVC_RX_STATUS 0x0c +#define TEGRA210_MVC_RX_INT_STATUS 0x10 +#define TEGRA210_MVC_RX_INT_MASK 0x14 +#define TEGRA210_MVC_RX_INT_SET 0x18 +#define TEGRA210_MVC_RX_INT_CLEAR 0x1c +#define TEGRA210_MVC_RX_CIF_CTRL 0x20 + +/* + * MVC_TX registers are with respect to XBAR. + * The data goes out of MVC. + */ +#define TEGRA210_MVC_TX_STATUS 0x4c +#define TEGRA210_MVC_TX_INT_STATUS 0x50 +#define TEGRA210_MVC_TX_INT_MASK 0x54 +#define TEGRA210_MVC_TX_INT_SET 0x58 +#define TEGRA210_MVC_TX_INT_CLEAR 0x5c +#define TEGRA210_MVC_TX_CIF_CTRL 0x60 + +/* Register offsets from TEGRA210_MVC*_BASE */ +#define TEGRA210_MVC_ENABLE 0x80 +#define TEGRA210_MVC_SOFT_RESET 0x84 +#define TEGRA210_MVC_CG 0x88 +#define TEGRA210_MVC_STATUS 0x90 +#define TEGRA210_MVC_INT_STATUS 0x94 +#define TEGRA210_MVC_CTRL 0xa8 +#define TEGRA210_MVC_SWITCH 0xac +#define TEGRA210_MVC_INIT_VOL 0xb0 +#define TEGRA210_MVC_TARGET_VOL 0xd0 +#define TEGRA210_MVC_DURATION 0xf0 +#define TEGRA210_MVC_DURATION_INV 0xf4 +#define TEGRA210_MVC_POLY_N1 0xf8 +#define TEGRA210_MVC_POLY_N2 0xfc +#define TEGRA210_MVC_PEAK_CTRL 0x100 +#define TEGRA210_MVC_CFG_RAM_CTRL 0x104 +#define TEGRA210_MVC_CFG_RAM_DATA 0x108 +#define TEGRA210_MVC_PEAK_VALUE 0x10c +#define TEGRA210_MVC_CONFIG_ERR_TYPE 0x12c + +/* Fields in TEGRA210_MVC_ENABLE */ +#define TEGRA210_MVC_EN_SHIFT 0 +#define TEGRA210_MVC_EN (1 << TEGRA210_MVC_EN_SHIFT) + +#define TEGRA210_MVC_MUTE_SHIFT 8 +#define TEGRA210_MUTE_MASK_EN 0xff +#define TEGRA210_MVC_MUTE_MASK (TEGRA210_MUTE_MASK_EN << TEGRA210_MVC_MUTE_SHIFT) +#define TEGRA210_MVC_MUTE_EN (TEGRA210_MUTE_MASK_EN << TEGRA210_MVC_MUTE_SHIFT) + +#define TEGRA210_MVC_PER_CHAN_CTRL_EN_SHIFT 30 +#define TEGRA210_MVC_PER_CHAN_CTRL_EN_MASK (1 << TEGRA210_MVC_PER_CHAN_CTRL_EN_SHIFT) +#define TEGRA210_MVC_PER_CHAN_CTRL_EN (1 << TEGRA210_MVC_PER_CHAN_CTRL_EN_SHIFT) + +#define TEGRA210_MVC_CURVE_TYPE_SHIFT 1 +#define TEGRA210_MVC_CURVE_TYPE_MASK (1 << TEGRA210_MVC_CURVE_TYPE_SHIFT) + +#define TEGRA210_MVC_VOLUME_SWITCH_SHIFT 2 +#define TEGRA210_MVC_VOLUME_SWITCH_MASK (1 << TEGRA210_MVC_VOLUME_SWITCH_SHIFT) +#define TEGRA210_MVC_VOLUME_SWITCH_TRIGGER (1 << TEGRA210_MVC_VOLUME_SWITCH_SHIFT) +#define TEGRA210_MVC_CTRL_DEFAULT 0x40000003 + +#define TEGRA210_MVC_INIT_VOL_DEFAULT_POLY 0x01000000 +#define TEGRA210_MVC_INIT_VOL_DEFAULT_LINEAR 0x00000000 + +/* Fields in TEGRA210_MVC ram ctrl */ +#define TEGRA210_MVC_CFG_RAM_CTRL_RW_SHIFT 14 +#define TEGRA210_MVC_CFG_RAM_CTRL_RW_WRITE (1 << TEGRA210_MVC_CFG_RAM_CTRL_RW_SHIFT) + +#define TEGRA210_MVC_CFG_RAM_CTRL_ADDR_INIT_EN_SHIFT 13 +#define TEGRA210_MVC_CFG_RAM_CTRL_ADDR_INIT_EN (1 << TEGRA210_MVC_CFG_RAM_CTRL_ADDR_INIT_EN_SHIFT) + +#define TEGRA210_MVC_CFG_RAM_CTRL_SEQ_ACCESS_EN_SHIFT 12 +#define TEGRA210_MVC_CFG_RAM_CTRL_SEQ_ACCESS_EN (1 << TEGRA210_MVC_CFG_RAM_CTRL_SEQ_ACCESS_EN_SHIFT) + +#define TEGRA210_MVC_CFG_RAM_CTRL_ADDR_SHIFT 0 +#define TEGRA210_MVC_CFG_RAM_CTRL_ADDR_MASK (0x1ff << TEGRA210_MVC_CFG_RAM_CTRL_ADDR_SHIFT) + +#define REG_SIZE 4 +#define TEGRA210_MVC_MAX_CHAN_COUNT 8 +#define TEGRA210_MVC_REG_OFFSET(reg, i) (reg + (REG_SIZE * i)) + +#define NUM_GAIN_POLY_COEFFS 9 + +enum { + CURVE_POLY, + CURVE_LINEAR, +}; + +struct tegra210_mvc_gain_params { + int poly_coeff[NUM_GAIN_POLY_COEFFS]; + int poly_n1; + int poly_n2; + int duration; + int duration_inv; +}; + +struct tegra210_mvc { + int volume[TEGRA210_MVC_MAX_CHAN_COUNT]; + unsigned int curve_type; + unsigned int ctrl_value; + struct regmap *regmap; +}; + +#endif |