diff options
| -rw-r--r-- | Documentation/devicetree/bindings/sound/fsl,amix.txt | 67 | ||||
| -rw-r--r-- | sound/soc/fsl/Kconfig | 9 | ||||
| -rw-r--r-- | sound/soc/fsl/Makefile | 2 | ||||
| -rw-r--r-- | sound/soc/fsl/fsl_amix.c | 451 | ||||
| -rw-r--r-- | sound/soc/fsl/fsl_amix.h | 101 |
5 files changed, 630 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/fsl,amix.txt b/Documentation/devicetree/bindings/sound/fsl,amix.txt new file mode 100644 index 000000000000..d4920e88e466 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/fsl,amix.txt @@ -0,0 +1,67 @@ +NXP Audio Mixer (AMIX). + +The Audio Mixer is a on-chip functional module that allows mixing of two audio +streams into a single audio stream. Audio Mixer has two input serial audio +interfaces. These are driven by two Synchronous Audio interface modules (SAI). +Each input serial interface carries 8 audio channels in its frame in TDM manner. +Mixer mixes audio samples of corresponding channels from two interfaces into a +single sample. Before mixing, audio samples of two inputs can be attenuated +based on configuration. The output of the Audio Mixer is also a serial audio +interface. Like input interfaces it has the same TDM frame format. This output +is used to drive the serial DAC TDM interface of audio codec and also sent to +the external pins along with the receive path of normal audio SAI module for +readback by the CPU. + +The output of Audio mixer can be selected from any of the three streams + - serial audio input 1 + - serial audio input 2 + - Mixed audio + +Mixing operation is independent of audio sample rate but the two audio input +streams must have same audio sample rate with same number of channels in TDM +frame to be eligible for mixing. + +Device driver required properties: +================================= + - compatible : Compatible list, contains "fsl,imx8qm-amix" + + - reg : Offset and length of the register set for the device. + + - clocks : Must contain an entry for each entry in clock-names. + + - clock-names : Must include the "ipg" for register access. + + - power-domains : Must contain the phandle to the AMIX power domain node + +Device driver configuration example: +====================================== + amix: amix@59840000 { + compatible = "fsl,imx8qm-amix"; + reg = <0x0 0x59840000 0x0 0x10000>; + clocks = <&clk IMX8QXP_AUD_AMIX_IPG>; + clock-names = "ipg"; + power-domains = <&pd_amix>; + }; + +Machine driver required properties: +=================================== + - compatible : Compatible list, contains "fsl,imx-audio-amix" + + - model : Short audio card description. + + - dais : Must contain a list of phandles to AMIX connected + DAIs. The current implementation requires two phandles + to SAI interfaces to be provided, the first SAI in the + list being used to route the AMIX output. + + - amix-controller : Must contain the phandle to the AMIX device node. + +Machine driver configuration example: +==================================== + sound-amix-sai { + compatible = "fsl,imx-audio-amix"; + model = "amix-audio-sai"; + dais = <&sai4>, <&sai5>; + amix-controller = <&amix>; + }; + diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index b5f06208464d..430cc9811c60 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -32,6 +32,15 @@ config SND_SOC_FSL_ACM This option is only useful for out-of-tree drivers since in-tree drivers select it automatically. +config SND_SOC_FSL_AMIX + tristate "Audio Mixer (AMIX) module support" + select REGMAP_MMIO + help + Say Y if you want to add Audio Mixer (AMIX) + support for the Freescale CPUs. + This option is only useful for out-of-tree drivers since + in-tree drivers select it automatically. + config SND_SOC_FSL_SSI tristate "Synchronous Serial Interface module (SSI) support" select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index cc04f8a7a12c..e92bf4455452 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_SND_SOC_P1022_RDK) += snd-soc-p1022-rdk.o # Freescale SSI/DMA/SAI/SPDIF Support snd-soc-fsl-acm-objs := fsl_acm.o +snd-soc-fsl-amix-objs := fsl_amix.o snd-soc-fsl-asrc-objs := fsl_asrc.o fsl_asrc_dma.o snd-soc-fsl-dma-workaround-objs := fsl_dma_workaround.o snd-soc-fsl-hifi4-objs := fsl_hifi4.o @@ -26,6 +27,7 @@ snd-soc-fsl-rpmsg-i2s-objs := fsl_rpmsg_i2s.o snd-soc-fsl-hdmi-objs := fsl_hdmi.o snd-soc-fsl-asoc-card-objs := fsl-asoc-card.o obj-$(CONFIG_SND_SOC_FSL_ACM) += snd-soc-fsl-acm.o +obj-$(CONFIG_SND_SOC_FSL_AMIX) += snd-soc-fsl-amix.o obj-$(CONFIG_SND_SOC_FSL_ASRC) += snd-soc-fsl-asrc.o obj-$(CONFIG_SND_SOC_FSL_HIFI4) += snd-soc-fsl-hifi4.o obj-$(CONFIG_SND_SOC_FSL_SAI) += snd-soc-fsl-sai.o diff --git a/sound/soc/fsl/fsl_amix.c b/sound/soc/fsl/fsl_amix.c new file mode 100644 index 000000000000..e9c071603027 --- /dev/null +++ b/sound/soc/fsl/fsl_amix.c @@ -0,0 +1,451 @@ +/* + * NXP AMIX ALSA SoC Digital Audio Interface (DAI) driver + * + * Copyright 2017 NXP + * + * Author: Viorel Suman <viorel.suman@nxp.com> + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include <linux/clk.h> +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/pm_runtime.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> + +#include "fsl_amix.h" + +#define SOC_ENUM_SINGLE_S(xreg, xshift, xtexts) \ + SOC_ENUM_SINGLE(xreg, xshift, ARRAY_SIZE(xtexts), xtexts) + +static const char + *tdm_sel[] = { "TDM1", "TDM2", }, + *mode_sel[] = { "Disabled", "TDM1", "TDM2", "Mixed", }, + *width_sel[] = { "16b", "18b", "20b", "24b", "32b", }, + *pol_sel[] = { "Positive edge", "Negative edge", }, + *endis_sel[] = { "Disabled", "Enabled", }, + *updn_sel[] = { "Downward", "Upward", }, + *mask_sel[] = { "Unmask", "Mask", }; + +static const struct soc_enum fsl_amix_enum[] = { +/* FSL_AMIX_CTR enums */ +SOC_ENUM_SINGLE_S(FSL_AMIX_CTR, FSL_AMIX_CTR_MIXCLK_SHIFT, tdm_sel), +SOC_ENUM_SINGLE_S(FSL_AMIX_CTR, FSL_AMIX_CTR_OUTSRC_SHIFT, mode_sel), +SOC_ENUM_SINGLE_S(FSL_AMIX_CTR, FSL_AMIX_CTR_OUTWIDTH_SHIFT, width_sel), +SOC_ENUM_SINGLE_S(FSL_AMIX_CTR, FSL_AMIX_CTR_OUTCKPOL_SHIFT, pol_sel), +SOC_ENUM_SINGLE_S(FSL_AMIX_CTR, FSL_AMIX_CTR_MASKRTDF_SHIFT, mask_sel), +SOC_ENUM_SINGLE_S(FSL_AMIX_CTR, FSL_AMIX_CTR_MASKCKDF_SHIFT, mask_sel), +SOC_ENUM_SINGLE_S(FSL_AMIX_CTR, FSL_AMIX_CTR_SYNCMODE_SHIFT, endis_sel), +SOC_ENUM_SINGLE_S(FSL_AMIX_CTR, FSL_AMIX_CTR_SYNCSRC_SHIFT, tdm_sel), +/* FSL_AMIX_ATCR0 enums */ +SOC_ENUM_SINGLE_S(FSL_AMIX_ATCR0, 0, endis_sel), +SOC_ENUM_SINGLE_S(FSL_AMIX_ATCR0, 1, updn_sel), +/* FSL_AMIX_ATCR1 enums */ +SOC_ENUM_SINGLE_S(FSL_AMIX_ATCR1, 0, endis_sel), +SOC_ENUM_SINGLE_S(FSL_AMIX_ATCR1, 1, updn_sel), +}; + +static const struct snd_kcontrol_new fsl_amix_snd_controls[] = { + /* FSL_AMIX_CTR controls */ + SOC_ENUM("Mixing Clock Source", fsl_amix_enum[0]), + SOC_ENUM("Output Source", fsl_amix_enum[1]), + SOC_ENUM("Output Width", fsl_amix_enum[2]), + SOC_ENUM("Output Clock Polarity", fsl_amix_enum[3]), + SOC_ENUM("Frame Rate Diff Error", fsl_amix_enum[4]), + SOC_ENUM("Clock Freq Diff Error", fsl_amix_enum[5]), + SOC_ENUM("Sync Mode Config", fsl_amix_enum[6]), + SOC_ENUM("Sync Mode Clk Source", fsl_amix_enum[7]), + /* TDM1 Attenuation controls */ + SOC_ENUM("TDM1 Attenuation", fsl_amix_enum[8]), + SOC_ENUM("TDM1 Attenuation Direction", fsl_amix_enum[9]), + SOC_SINGLE("TDM1 Attenuation Step Divider", FSL_AMIX_ATCR0, + 2, 0x0fff, 0), + SOC_SINGLE("TDM1 Attenuation Initial Value", FSL_AMIX_ATIVAL0, + 0, 0x3fff, 0), + SOC_SINGLE("TDM1 Attenuation Step Up Factor", FSL_AMIX_ATSTPUP0, + 0, 0x3fff, 0), + SOC_SINGLE("TDM1 Attenuation Step Down Factor", FSL_AMIX_ATSTPDN0, + 0, 0x3fff, 0), + SOC_SINGLE("TDM1 Attenuation Step Target", FSL_AMIX_ATSTPTGT0, + 0, 0x3fff, 0), + /* TDM2 Attenuation controls */ + SOC_ENUM("TDM2 Attenuation", fsl_amix_enum[10]), + SOC_ENUM("TDM2 Attenuation Direction", fsl_amix_enum[11]), + SOC_SINGLE("TDM2 Attenuation Step Divider", FSL_AMIX_ATCR1, + 2, 0x0fff, 0), + SOC_SINGLE("TDM2 Attenuation Initial Value", FSL_AMIX_ATIVAL1, + 0, 0x3fff, 0), + SOC_SINGLE("TDM2 Attenuation Step Up Factor", FSL_AMIX_ATSTPUP1, + 0, 0x3fff, 0), + SOC_SINGLE("TDM2 Attenuation Step Down Factor", FSL_AMIX_ATSTPDN1, + 0, 0x3fff, 0), + SOC_SINGLE("TDM2 Attenuation Step Target", FSL_AMIX_ATSTPTGT1, + 0, 0x3fff, 0), +}; + +struct amix_dais_st { + u8 input; + u8 output; +}; + +static void fsl_amix_get_dais_status(struct snd_soc_pcm_runtime *be_rtd, + struct amix_dais_st *status) +{ + struct snd_soc_dpcm *dpcm; + struct snd_soc_pcm_runtime *fe_rtd = NULL; + struct snd_pcm_substream *fe_ss = NULL; + struct snd_soc_dai *fe_dai, *be_dai = be_rtd->cpu_dai; + int stream = SNDRV_PCM_STREAM_PLAYBACK; + + /* find active frontends for this backend */ + list_for_each_entry(dpcm, &be_rtd->dpcm[stream].fe_clients, list_fe) { + if (dpcm->be != be_rtd) + continue; + + fe_rtd = dpcm->fe; + fe_dai = fe_rtd->cpu_dai; + fe_ss = snd_soc_dpcm_get_substream(fe_rtd, stream); + + if (fe_ss && fe_ss->pcm->device < FSL_AMIX_MAX_DAIS) { + if (fe_dai->playback_active) + status->input |= BIT(fe_ss->pcm->device); + if (fe_dai->capture_active) + status->output |= BIT(fe_ss->pcm->device); + } else if (fe_ss) { + dev_err(be_dai->dev, "Wrong device number: %d\n", + fe_ss->pcm->device); + } + } +} + +static int fsl_amix_update(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *dai = rtd->cpu_dai; + struct fsl_amix *priv = snd_soc_dai_get_drvdata(dai); + u32 mask = 0, ctr = 0, val, old_input; + struct amix_dais_st status = { .input = 0, .output = 0 }; + + fsl_amix_get_dais_status(rtd, &status); + + regmap_read(priv->regmap, FSL_AMIX_CTR, &val); + old_input = ((val & FSL_AMIX_CTR_OUTSRC_MASK) >> FSL_AMIX_CTR_OUTSRC_SHIFT); + + dev_dbg(dai->dev, "old_input=x%08x, input=x%08x\n", old_input, status.input); + + if (old_input == status.input) { + dev_dbg(dai->dev, "State unchanged, input=x%08x\n", status.input); + return 0; + } + + /** + * Mixing clock selection. Make sure the currently selected clock source + * has the TDM enabled. If not, switch clock source to enabled TDM. + */ + switch (status.input) { + case 0: /* Both TDMs are disabled, keep the clock source unchanged */ + case 3: /* Both TDMs are enabled, keep the clock source unchanged */ + break; + case 1: + case 2: + val &= 1; + if (FSL_AMIX_CTR_MIXCLK(status.input) != val) { + mask |= FSL_AMIX_CTR_MIXCLK_MASK; + ctr |= FSL_AMIX_CTR_MIXCLK(status.input); + } + break; + } + + /* Output source selection */ + mask |= FSL_AMIX_CTR_OUTSRC_MASK; + ctr |= FSL_AMIX_CTR_OUTSRC(status.input); + + regmap_update_bits(priv->regmap, FSL_AMIX_CTR, mask, ctr); + + dev_dbg(dai->dev, "Set AMIX_CTR[0x%08x]=0x%08x, in=0x%08x, out=0x%08x\n", + mask, ctr, status.input, status.output); + + return 0; +} + +static int fsl_amix_dai_mute_stream(struct snd_soc_dai *dai, int mute, int stream) +{ + struct snd_soc_card *card = dai->component->card; + struct snd_soc_pcm_runtime *rtd; + + rtd = snd_soc_get_pcm_runtime(card, "HiFi-AMIX-BE"); + + return fsl_amix_update(rtd); +} + +static void fsl_amix_dai_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + + fsl_amix_update(rtd); +} + +static int fsl_amix_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct fsl_amix *priv = snd_soc_dai_get_drvdata(dai); + u32 mask = 0, ctr = 0; + + /* AMIX is working in DSP_A format only */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + break; + default: + return -EINVAL; + } + + /* For playback the AMIX is slave, and for record is master */ + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + case SND_SOC_DAIFMT_CBS_CFS: + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + /* Output data will be written on positive edge of the clock */ + ctr |= FSL_AMIX_CTR_OUTCKPOL(0); + break; + case SND_SOC_DAIFMT_IB_NF: + /* Output data will be written on negative edge of the clock */ + ctr |= FSL_AMIX_CTR_OUTCKPOL(1); + break; + default: + return -EINVAL; + } + + mask |= FSL_AMIX_CTR_OUTCKPOL_MASK; + + return regmap_update_bits(priv->regmap, FSL_AMIX_CTR, mask, ctr); +} + +static struct snd_soc_dai_ops fsl_amix_dai_ops = { + .shutdown = fsl_amix_dai_shutdown, + .mute_stream = fsl_amix_dai_mute_stream, + .set_fmt = fsl_amix_dai_set_fmt, +}; + +static struct snd_soc_dai_driver fsl_amix_dai = { + .playback = { + .stream_name = "AMIX-Playback", + .channels_min = 8, + .channels_max = 8, + .rate_min = 8000, + .rate_max = 96000, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = FSL_AMIX_FORMATS, + }, + .capture = { + .stream_name = "AMIX-Capture", + .channels_min = 8, + .channels_max = 8, + .rate_min = 8000, + .rate_max = 96000, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = FSL_AMIX_FORMATS, + }, + .ops = &fsl_amix_dai_ops, +}; + +static const struct snd_soc_component_driver fsl_amix_component = { + .name = "fsl-amix-dai", + .controls = fsl_amix_snd_controls, + .num_controls = ARRAY_SIZE(fsl_amix_snd_controls), +}; + +static bool fsl_amix_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case FSL_AMIX_CTR: + case FSL_AMIX_STR: + case FSL_AMIX_ATCR0: + case FSL_AMIX_ATIVAL0: + case FSL_AMIX_ATSTPUP0: + case FSL_AMIX_ATSTPDN0: + case FSL_AMIX_ATSTPTGT0: + case FSL_AMIX_ATTNVAL0: + case FSL_AMIX_ATSTP0: + case FSL_AMIX_ATCR1: + case FSL_AMIX_ATIVAL1: + case FSL_AMIX_ATSTPUP1: + case FSL_AMIX_ATSTPDN1: + case FSL_AMIX_ATSTPTGT1: + case FSL_AMIX_ATTNVAL1: + case FSL_AMIX_ATSTP1: + return true; + default: + return false; + } +} + +static bool fsl_amix_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case FSL_AMIX_CTR: + case FSL_AMIX_ATCR0: + case FSL_AMIX_ATIVAL0: + case FSL_AMIX_ATSTPUP0: + case FSL_AMIX_ATSTPDN0: + case FSL_AMIX_ATSTPTGT0: + case FSL_AMIX_ATCR1: + case FSL_AMIX_ATIVAL1: + case FSL_AMIX_ATSTPUP1: + case FSL_AMIX_ATSTPDN1: + case FSL_AMIX_ATSTPTGT1: + return true; + default: + return false; + } +} + +static struct reg_default fsl_amix_reg[] = { + { FSL_AMIX_CTR, 0x00060 }, + { FSL_AMIX_STR, 0x00003 }, + { FSL_AMIX_ATCR0, 0x00000 }, + { FSL_AMIX_ATIVAL0, 0x3FFFF }, + { FSL_AMIX_ATSTPUP0, 0x2AAAA }, + { FSL_AMIX_ATSTPDN0, 0x30000 }, + { FSL_AMIX_ATSTPTGT0, 0x00010 }, + { FSL_AMIX_ATTNVAL0, 0x00000 }, + { FSL_AMIX_ATSTP0, 0x00000 }, + { FSL_AMIX_ATCR1, 0x00000 }, + { FSL_AMIX_ATIVAL1, 0x3FFFF }, + { FSL_AMIX_ATSTPUP1, 0x2AAAA }, + { FSL_AMIX_ATSTPDN1, 0x30000 }, + { FSL_AMIX_ATSTPTGT1, 0x00010 }, + { FSL_AMIX_ATTNVAL1, 0x00000 }, + { FSL_AMIX_ATSTP1, 0x00000 }, +}; + +static const struct regmap_config fsl_amix_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = FSL_AMIX_ATSTP1, + .reg_defaults = fsl_amix_reg, + .num_reg_defaults = ARRAY_SIZE(fsl_amix_reg), + .readable_reg = fsl_amix_readable_reg, + .writeable_reg = fsl_amix_writeable_reg, + .cache_type = REGCACHE_FLAT, +}; + +static int fsl_amix_probe(struct platform_device *pdev) +{ + struct fsl_amix *priv; + struct resource *res; + void __iomem *regs; + int ret; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->pdev = pdev; + + /* Get the addresses */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + priv->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "ipg", regs, + &fsl_amix_regmap_config); + if (IS_ERR(priv->regmap)) { + dev_err(&pdev->dev, "failed to init regmap\n"); + return PTR_ERR(priv->regmap); + } + + priv->ipg_clk = devm_clk_get(&pdev->dev, "ipg"); + if (IS_ERR(priv->ipg_clk)) { + dev_err(&pdev->dev, "failed to get ipg clock\n"); + return PTR_ERR(priv->ipg_clk); + } + + platform_set_drvdata(pdev, priv); + pm_runtime_enable(&pdev->dev); + + ret = devm_snd_soc_register_component(&pdev->dev, &fsl_amix_component, + &fsl_amix_dai, 1); + if (ret) { + dev_err(&pdev->dev, "failed to register ASoC DAI\n"); + return ret; + } + + return 0; +} + +#ifdef CONFIG_PM +static int fsl_amix_runtime_resume(struct device *dev) +{ + struct fsl_amix *priv = dev_get_drvdata(dev); + + return clk_prepare_enable(priv->ipg_clk); +} + +static int fsl_amix_runtime_suspend(struct device *dev) +{ + struct fsl_amix *priv = dev_get_drvdata(dev); + + clk_disable_unprepare(priv->ipg_clk); + + return 0; +} +#endif /* CONFIG_PM */ + +#ifdef CONFIG_PM_SLEEP +static int fsl_amix_suspend(struct device *dev) +{ + struct fsl_amix *priv = dev_get_drvdata(dev); + + regcache_cache_only(priv->regmap, true); + regcache_mark_dirty(priv->regmap); + + return 0; +} + +static int fsl_amix_resume(struct device *dev) +{ + struct fsl_amix *priv = dev_get_drvdata(dev); + + regcache_cache_only(priv->regmap, false); + regcache_sync(priv->regmap); + + return 0; +} +#endif /* CONFIG_PM_SLEEP */ + +static const struct dev_pm_ops fsl_amix_pm = { + SET_RUNTIME_PM_OPS(fsl_amix_runtime_suspend, fsl_amix_runtime_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(fsl_amix_suspend, fsl_amix_resume) +}; + +static const struct of_device_id fsl_amix_ids[] = { + { .compatible = "fsl,imx8qm-amix", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, fsl_amix_ids); + +static struct platform_driver fsl_amix_driver = { + .probe = fsl_amix_probe, + .driver = { + .name = "fsl-amix", + .of_match_table = fsl_amix_ids, + .pm = &fsl_amix_pm, + }, +}; +module_platform_driver(fsl_amix_driver); + +MODULE_DESCRIPTION("NXP AMIX ASoC DAI driver"); +MODULE_AUTHOR("Viorel Suman <viorel.suman@nxp.com>"); +MODULE_ALIAS("platform:fsl-amix"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/fsl/fsl_amix.h b/sound/soc/fsl/fsl_amix.h new file mode 100644 index 000000000000..1c91516ff439 --- /dev/null +++ b/sound/soc/fsl/fsl_amix.h @@ -0,0 +1,101 @@ +/* + * Copyright 2017 NXP Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __FSL_AMIX_H +#define __FSL_AMIX_H + +#define FSL_AMIX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ + SNDRV_PCM_FMTBIT_S24_LE |\ + SNDRV_PCM_FMTBIT_S32_LE) +/* AMIX Registers */ +#define FSL_AMIX_CTR 0x200 /* Control */ +#define FSL_AMIX_STR 0x204 /* Status */ + +#define FSL_AMIX_ATCR0 0x208 /* Attenuation Control */ +#define FSL_AMIX_ATIVAL0 0x20c /* Attenuation Initial Value */ +#define FSL_AMIX_ATSTPUP0 0x210 /* Attenuation step up factor */ +#define FSL_AMIX_ATSTPDN0 0x214 /* Attenuation step down factor */ +#define FSL_AMIX_ATSTPTGT0 0x218 /* Attenuation step target */ +#define FSL_AMIX_ATTNVAL0 0x21c /* Attenuation Value */ +#define FSL_AMIX_ATSTP0 0x220 /* Attenuation step number */ + +#define FSL_AMIX_ATCR1 0x228 /* Attenuation Control */ +#define FSL_AMIX_ATIVAL1 0x22c /* Attenuation Initial Value */ +#define FSL_AMIX_ATSTPUP1 0x230 /* Attenuation step up factor */ +#define FSL_AMIX_ATSTPDN1 0x234 /* Attenuation step down factor */ +#define FSL_AMIX_ATSTPTGT1 0x238 /* Attenuation step target */ +#define FSL_AMIX_ATTNVAL1 0x23c /* Attenuation Value */ +#define FSL_AMIX_ATSTP1 0x240 /* Attenuation step number */ + +/* AMIX Control Register */ +#define FSL_AMIX_CTR_MIXCLK_SHIFT 0 +#define FSL_AMIX_CTR_MIXCLK_MASK (1 << FSL_AMIX_CTR_MIXCLK_SHIFT) +#define FSL_AMIX_CTR_MIXCLK(i) (i - 1) +#define FSL_AMIX_CTR_OUTSRC_SHIFT 1 +#define FSL_AMIX_CTR_OUTSRC_MASK (0x3 << FSL_AMIX_CTR_OUTSRC_SHIFT) +#define FSL_AMIX_CTR_OUTSRC(i) ((i << FSL_AMIX_CTR_OUTSRC_SHIFT) \ + & FSL_AMIX_CTR_OUTSRC_MASK) +#define FSL_AMIX_CTR_OUTWIDTH_SHIFT 3 +#define FSL_AMIX_CTR_OUTWIDTH_MASK (0x7 << FSL_AMIX_CTR_OUTWIDTH_SHIFT) +#define FSL_AMIX_CTR_OUTWIDTH(i) ((i << FSL_AMIX_CTR_OUTWIDTH_SHIFT) \ + & FSL_AMIX_CTR_OUTWIDTH_MASK) +#define FSL_AMIX_CTR_OUTCKPOL_SHIFT 6 +#define FSL_AMIX_CTR_OUTCKPOL_MASK (1 << FSL_AMIX_CTR_OUTCKPOL_SHIFT) +#define FSL_AMIX_CTR_OUTCKPOL(i) (i << FSL_AMIX_CTR_OUTCKPOL_SHIFT) +#define FSL_AMIX_CTR_MASKRTDF_SHIFT 7 +#define FSL_AMIX_CTR_MASKRTDF_MASK (1 << FSL_AMIX_CTR_MASKRTDF_SHIFT) +#define FSL_AMIX_CTR_MASKRTDF(i) (i << FSL_AMIX_CTR_MASKRTDF_SHIFT) +#define FSL_AMIX_CTR_MASKCKDF_SHIFT 8 +#define FSL_AMIX_CTR_MASKCKDF_MASK (1 << FSL_AMIX_CTR_MASKCKDF_SHIFT) +#define FSL_AMIX_CTR_MASKCKDF(i) (i << FSL_AMIX_CTR_MASKCKDF_SHIFT) +#define FSL_AMIX_CTR_SYNCMODE_SHIFT 9 +#define FSL_AMIX_CTR_SYNCMODE_MASK (1 << FSL_AMIX_CTR_SYNCMODE_SHIFT) +#define FSL_AMIX_CTR_SYNCMODE(i) (i << FSL_AMIX_CTR_SYNCMODE_SHIFT) +#define FSL_AMIX_CTR_SYNCSRC_SHIFT 10 +#define FSL_AMIX_CTR_SYNCSRC_MASK (1 << FSL_AMIX_CTR_SYNCSRC_SHIFT) +#define FSL_AMIX_CTR_SYNCSRC(i) (i << FSL_AMIX_CTR_SYNCSRC_SHIFT) + +/* AMIX Status Register */ +#define FSL_AMIX_STR_RATEDIFF BIT(0) +#define FSL_AMIX_STR_CLKDIFF BIT(1) +#define FSL_AMIX_STR_MIXSTAT_SHIFT 2 +#define FSL_AMIX_STR_MIXSTAT_MASK (0x3 << FSL_AMIX_STR_MIXSTAT_SHIFT) +#define FSL_AMIX_STR_MIXSTAT(i) ((i & FSL_AMIX_STR_MIXSTAT_MASK) \ + >> FSL_AMIX_STR_MIXSTAT_SHIFT) +/* AMIX Attenuation Control Register */ +#define FSL_AMIX_ATCR_AT_EN BIT(0) +#define FSL_AMIX_ATCR_AT_UPDN BIT(1) +#define FSL_AMIX_ATCR_ATSTPDIF_SHIFT 2 +#define FSL_AMIX_ATCR_ATSTPDFI_MASK (0xfff << FSL_AMIX_ATCR_ATSTPDIF_SHIFT) + +/* AMIX Attenuation Initial Value Register */ +#define FSL_AMIX_ATIVAL_ATINVAL_MASK 0x3FFFF + +/* AMIX Attenuation Step Up Factor Register */ +#define FSL_AMIX_ATSTPUP_ATSTEPUP_MASK 0x3FFFF + +/* AMIX Attenuation Step Down Factor Register */ +#define FSL_AMIX_ATSTPDN_ATSTEPDN_MASK 0x3FFFF + +/* AMIX Attenuation Step Target Register */ +#define FSL_AMIX_ATSTPTGT_ATSTPTG_MASK 0x3FFFF + +/* AMIX Attenuation Value Register */ +#define FSL_AMIX_ATTNVAL_ATCURVAL_MASK 0x3FFFF + +/* AMIX Attenuation Step Number Register */ +#define FSL_AMIX_ATSTP_STPCTR_MASK 0x3FFFF + +#define FSL_AMIX_MAX_DAIS 2 +struct fsl_amix { + struct platform_device *pdev; + struct regmap *regmap; + struct clk *ipg_clk; +}; + +#endif /* __FSL_AMIX_H */ |