* [PATCH v2 0/2] Add MICFIL DAI support @ 2019-01-04 9:17 Cosmin Samoila 2019-01-04 9:17 ` [PATCH v2 1/2] ASoC: micfil: Add bindings for MICFIL DAI Cosmin Samoila 2019-01-04 9:17 ` [PATCH v2 2/2] ASoC: Add MICFIL SoC Digital Audio Interface driver Cosmin Samoila 0 siblings, 2 replies; 5+ messages in thread From: Cosmin Samoila @ 2019-01-04 9:17 UTC (permalink / raw) To: broonie@kernel.org, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, robh@kernel.org, gabrielcsmo@gmail.com Cc: Cosmin Samoila, S.j. Wang, dl-linux-imx PDM is a popular way to deliver audio from microphones to the processor in several applications, such as mobile telephones. However, current digital-audio systems use multibit audio signal (also known as multibit PCM) to represent the signal. For this purpose a set of FIR, CIC or/and Half Band filters are usually implemented on DSPs or software. This block implements the required digital interface to provide a 16-bit audio signal from a PDM microphone bitstream in a configurable output sampling rate. The implementation of this digital interface is based on the application of digital signal processing techniques in hardware. The PDM Microphone Interface architecture was designed to gate saving and minimal power consumption. It implements a bunch of filters to transform a 1-bit PDM bitstream to a 16-bit PCM signal in the audio band. To avoid aliasing frequencies in passband, the overall filter has 80 dB stopband attenuation and passband ripple less than 0.2dB. The whole module is implemented to work in a multichannel mode. All channels have the same configuration but each input channel could be turned on/off independently. Changes since v1: - removed the hwvad support from patches since it is a separate functionality and it needs some design rework. Will address HWVAD in later series of patches after analyzing comunity feedback and design guildlines. - removed clock source choice for clock driver and use the AudioPLL1 as clock source. Having only one clock source it is sufficient for basic functionality. - removed dma-names and status from dt-bindings - changed volume control names and type to S_VALUE Cosmin-Gabriel Samoila (2): ASoC: micfil: Add bindings for MICFIL DAI ASoC: Add MICFIL SoC Digital Audio Interface driver. .../devicetree/bindings/sound/fsl,micfil.txt | 32 + sound/soc/fsl/Kconfig | 9 + sound/soc/fsl/Makefile | 2 + sound/soc/fsl/fsl_micfil.c | 895 +++++++++++++++++++++ sound/soc/fsl/fsl_micfil.h | 283 +++++++ 5 files changed, 1221 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/fsl,micfil.txt create mode 100644 sound/soc/fsl/fsl_micfil.c create mode 100644 sound/soc/fsl/fsl_micfil.h -- 2.7.4 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH v2 1/2] ASoC: micfil: Add bindings for MICFIL DAI 2019-01-04 9:17 [PATCH v2 0/2] Add MICFIL DAI support Cosmin Samoila @ 2019-01-04 9:17 ` Cosmin Samoila 2019-01-07 18:57 ` Applied "ASoC: micfil: Add bindings for MICFIL DAI" to the asoc tree Mark Brown 2019-01-04 9:17 ` [PATCH v2 2/2] ASoC: Add MICFIL SoC Digital Audio Interface driver Cosmin Samoila 1 sibling, 1 reply; 5+ messages in thread From: Cosmin Samoila @ 2019-01-04 9:17 UTC (permalink / raw) To: broonie@kernel.org, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, robh@kernel.org, gabrielcsmo@gmail.com Cc: Cosmin Samoila, S.j. Wang, dl-linux-imx Document the bindings for MICFIL DAI. Signed-off-by: Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com> --- .../devicetree/bindings/sound/fsl,micfil.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/fsl,micfil.txt diff --git a/Documentation/devicetree/bindings/sound/fsl,micfil.txt b/Documentation/devicetree/bindings/sound/fsl,micfil.txt new file mode 100644 index 0000000..53e227b --- /dev/null +++ b/Documentation/devicetree/bindings/sound/fsl,micfil.txt @@ -0,0 +1,32 @@ +NXP MICFIL Digital Audio Interface (MICFIL). + +The MICFIL digital interface provides a 16-bit audio signal from a PDM +microphone bitstream in a configurable output sampling rate. + +Required properties: + + - compatible : Compatible list, contains "fsl,imx8mm-micfil" + + - reg : Offset and length of the register set for the device. + + - interrupts : Contains the micfil interrupts. + + - clocks : Must contain an entry for each entry in clock-names. + + - clock-names : Must include the "ipg_clk" for register access and + "ipg_clk_app" for internal micfil clock. + + - dmas : Generic dma devicetree binding as described in + Documentation/devicetree/bindings/dma/dma.txt. + +Example: +micfil: micfil@30080000 { + compatible = "fsl,imx8mm-micfil"; + reg = <0x0 0x30080000 0x0 0x10000>; + interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk IMX8MM_CLK_PDM_IPG>, + <&clk IMX8MM_CLK_PDM_ROOT>; + clock-names = "ipg_clk", "ipg_clk_app"; + dmas = <&sdma2 24 26 0x80000000>; +}; -- 2.7.4 ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Applied "ASoC: micfil: Add bindings for MICFIL DAI" to the asoc tree 2019-01-04 9:17 ` [PATCH v2 1/2] ASoC: micfil: Add bindings for MICFIL DAI Cosmin Samoila @ 2019-01-07 18:57 ` Mark Brown 0 siblings, 0 replies; 5+ messages in thread From: Mark Brown @ 2019-01-07 18:57 UTC (permalink / raw) Cc: devicetree@vger.kernel.org, alsa-devel, robh@kernel.org, S.j. Wang, broonie@kernel.org, dl-linux-imx, Cosmin-Gabriel Samoila, gabrielcsmo@gmail.com The patch ASoC: micfil: Add bindings for MICFIL DAI has been applied to the asoc tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From e595da28ecc87e7cec2681c01d5970e31153bddd Mon Sep 17 00:00:00 2001 From: Cosmin Samoila <cosmin.samoila@nxp.com> Date: Fri, 4 Jan 2019 09:17:37 +0000 Subject: [PATCH] ASoC: micfil: Add bindings for MICFIL DAI Document the bindings for MICFIL DAI. Signed-off-by: Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org> --- .../devicetree/bindings/sound/fsl,micfil.txt | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/fsl,micfil.txt diff --git a/Documentation/devicetree/bindings/sound/fsl,micfil.txt b/Documentation/devicetree/bindings/sound/fsl,micfil.txt new file mode 100644 index 000000000000..53e227b15277 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/fsl,micfil.txt @@ -0,0 +1,32 @@ +NXP MICFIL Digital Audio Interface (MICFIL). + +The MICFIL digital interface provides a 16-bit audio signal from a PDM +microphone bitstream in a configurable output sampling rate. + +Required properties: + + - compatible : Compatible list, contains "fsl,imx8mm-micfil" + + - reg : Offset and length of the register set for the device. + + - interrupts : Contains the micfil interrupts. + + - clocks : Must contain an entry for each entry in clock-names. + + - clock-names : Must include the "ipg_clk" for register access and + "ipg_clk_app" for internal micfil clock. + + - dmas : Generic dma devicetree binding as described in + Documentation/devicetree/bindings/dma/dma.txt. + +Example: +micfil: micfil@30080000 { + compatible = "fsl,imx8mm-micfil"; + reg = <0x0 0x30080000 0x0 0x10000>; + interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk IMX8MM_CLK_PDM_IPG>, + <&clk IMX8MM_CLK_PDM_ROOT>; + clock-names = "ipg_clk", "ipg_clk_app"; + dmas = <&sdma2 24 26 0x80000000>; +}; -- 2.20.1 ^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH v2 2/2] ASoC: Add MICFIL SoC Digital Audio Interface driver. 2019-01-04 9:17 [PATCH v2 0/2] Add MICFIL DAI support Cosmin Samoila 2019-01-04 9:17 ` [PATCH v2 1/2] ASoC: micfil: Add bindings for MICFIL DAI Cosmin Samoila @ 2019-01-04 9:17 ` Cosmin Samoila 2019-01-07 18:57 ` Applied "ASoC: Add MICFIL SoC Digital Audio Interface driver." to the asoc tree Mark Brown 1 sibling, 1 reply; 5+ messages in thread From: Cosmin Samoila @ 2019-01-04 9:17 UTC (permalink / raw) To: broonie@kernel.org, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, robh@kernel.org, gabrielcsmo@gmail.com Cc: Cosmin Samoila, S.j. Wang, dl-linux-imx Add Digital Audio Interface driver that convers PDM bitstream to PCM format. Features: - Fixed filtering characteristics for audio application. - Full or partial set of channels operation with individual enable control. - Programmable PDM clock generator. - Programmable decimation rate. - 16-bit signed output result. - Overall stopband attenuation more than 80dB. - Overall passband ripple less than 0.2dB. Signed-off-by: Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com> Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> --- sound/soc/fsl/Kconfig | 9 + sound/soc/fsl/Makefile | 2 + sound/soc/fsl/fsl_micfil.c | 826 +++++++++++++++++++++++++++++++++++++++++++++ sound/soc/fsl/fsl_micfil.h | 283 ++++++++++++++++ 4 files changed, 1120 insertions(+) create mode 100644 sound/soc/fsl/fsl_micfil.c create mode 100644 sound/soc/fsl/fsl_micfil.h diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 2e75b5b..7b1d997 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -57,6 +57,15 @@ config SND_SOC_FSL_ESAI This option is only useful for out-of-tree drivers since in-tree drivers select it automatically. +config SND_SOC_FSL_MICFIL + tristate "Pulse Density Modulation Microphone Interface (MICFIL) module support" + select REGMAP_MMIO + select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n + select SND_SOC_GENERIC_DMAENGINE_PCM + help + Say Y if you want to add Pulse Density Modulation microphone + interface (MICFIL) support for NXP. + config SND_SOC_FSL_UTILS tristate diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index de94fa0..3c0ff31 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -19,6 +19,7 @@ snd-soc-fsl-ssi-y := fsl_ssi.o snd-soc-fsl-ssi-$(CONFIG_DEBUG_FS) += fsl_ssi_dbg.o snd-soc-fsl-spdif-objs := fsl_spdif.o snd-soc-fsl-esai-objs := fsl_esai.o +snd-soc-fsl-micfil-objs := fsl_micfil.o snd-soc-fsl-utils-objs := fsl_utils.o snd-soc-fsl-dma-objs := fsl_dma.o obj-$(CONFIG_SND_SOC_FSL_ASOC_CARD) += snd-soc-fsl-asoc-card.o @@ -27,6 +28,7 @@ obj-$(CONFIG_SND_SOC_FSL_SAI) += snd-soc-fsl-sai.o obj-$(CONFIG_SND_SOC_FSL_SSI) += snd-soc-fsl-ssi.o obj-$(CONFIG_SND_SOC_FSL_SPDIF) += snd-soc-fsl-spdif.o obj-$(CONFIG_SND_SOC_FSL_ESAI) += snd-soc-fsl-esai.o +obj-$(CONFIG_SND_SOC_FSL_MICFIL) += snd-soc-fsl-micfil.o obj-$(CONFIG_SND_SOC_FSL_UTILS) += snd-soc-fsl-utils.o obj-$(CONFIG_SND_SOC_POWERPC_DMA) += snd-soc-fsl-dma.o diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c new file mode 100644 index 0000000..40c07e7 --- /dev/null +++ b/sound/soc/fsl/fsl_micfil.c @@ -0,0 +1,826 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright 2018 NXP + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/interrupt.h> +#include <linux/kobject.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/of_platform.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <linux/sysfs.h> +#include <linux/types.h> +#include <sound/dmaengine_pcm.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/tlv.h> +#include <sound/core.h> + +#include "fsl_micfil.h" +#include "imx-pcm.h" + +#define FSL_MICFIL_RATES SNDRV_PCM_RATE_8000_48000 +#define FSL_MICFIL_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) + +struct fsl_micfil { + struct platform_device *pdev; + struct regmap *regmap; + const struct fsl_micfil_soc_data *soc; + struct clk *mclk; + struct snd_dmaengine_dai_dma_data dma_params_rx; + unsigned int dataline; + char name[32]; + int irq[MICFIL_IRQ_LINES]; + unsigned int mclk_streams; + int quality; /*QUALITY 2-0 bits */ + bool slave_mode; + int channel_gain[8]; +}; + +struct fsl_micfil_soc_data { + unsigned int fifos; + unsigned int fifo_depth; + unsigned int dataline; + bool imx; +}; + +static struct fsl_micfil_soc_data fsl_micfil_imx8mm = { + .imx = true, + .fifos = 8, + .fifo_depth = 8, + .dataline = 0xf, +}; + +static const struct of_device_id fsl_micfil_dt_ids[] = { + { .compatible = "fsl,imx8mm-micfil", .data = &fsl_micfil_imx8mm }, + {} +}; +MODULE_DEVICE_TABLE(of, fsl_micfil_dt_ids); + +/* Table 5. Quality Modes + * Medium 0 0 0 + * High 0 0 1 + * Very Low 2 1 0 0 + * Very Low 1 1 0 1 + * Very Low 0 1 1 0 + * Low 1 1 1 + */ +static const char * const micfil_quality_select_texts[] = { + "Medium", "High", + "N/A", "N/A", + "VLow2", "VLow1", + "VLow0", "Low", +}; + +static const struct soc_enum fsl_micfil_quality_enum = + SOC_ENUM_SINGLE(REG_MICFIL_CTRL2, + MICFIL_CTRL2_QSEL_SHIFT, + ARRAY_SIZE(micfil_quality_select_texts), + micfil_quality_select_texts); + +static DECLARE_TLV_DB_SCALE(gain_tlv, 0, 100, 0); + +static const struct snd_kcontrol_new fsl_micfil_snd_controls[] = { + SOC_SINGLE_SX_TLV("CH0 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(0), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH1 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(1), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH2 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(2), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH3 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(3), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH4 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(4), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH5 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(5), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH6 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(6), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH7 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(7), 0xF, 0x7, gain_tlv), + SOC_ENUM_EXT("MICFIL Quality Select", + fsl_micfil_quality_enum, + snd_soc_get_enum_double, snd_soc_put_enum_double), +}; + +static inline int get_pdm_clk(struct fsl_micfil *micfil, + unsigned int rate) +{ + u32 ctrl2_reg; + int qsel, osr; + int bclk; + + regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); + osr = 16 - ((ctrl2_reg & MICFIL_CTRL2_CICOSR_MASK) + >> MICFIL_CTRL2_CICOSR_SHIFT); + + regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); + qsel = ctrl2_reg & MICFIL_CTRL2_QSEL_MASK; + + switch (qsel) { + case MICFIL_HIGH_QUALITY: + bclk = rate * 8 * osr / 2; /* kfactor = 0.5 */ + break; + case MICFIL_MEDIUM_QUALITY: + case MICFIL_VLOW0_QUALITY: + bclk = rate * 4 * osr * 1; /* kfactor = 1 */ + break; + case MICFIL_LOW_QUALITY: + case MICFIL_VLOW1_QUALITY: + bclk = rate * 2 * osr * 2; /* kfactor = 2 */ + break; + case MICFIL_VLOW2_QUALITY: + bclk = rate * osr * 4; /* kfactor = 4 */ + break; + default: + dev_err(&micfil->pdev->dev, + "Please make sure you select a valid quality.\n"); + bclk = -1; + break; + } + + return bclk; +} + +static inline int get_clk_div(struct fsl_micfil *micfil, + unsigned int rate) +{ + u32 ctrl2_reg; + long mclk_rate; + int osr; + int clk_div; + + regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); + osr = 16 - ((ctrl2_reg & MICFIL_CTRL2_CICOSR_MASK) + >> MICFIL_CTRL2_CICOSR_SHIFT); + + mclk_rate = clk_get_rate(micfil->mclk); + + clk_div = mclk_rate / (get_pdm_clk(micfil, rate) * 2); + + return clk_div; +} + +/* The SRES is a self-negated bit which provides the CPU with the + * capability to initialize the PDM Interface module through the + * slave-bus interface. This bit always reads as zero, and this + * bit is only effective when MDIS is cleared + */ +static int fsl_micfil_reset(struct device *dev) +{ + struct fsl_micfil *micfil = dev_get_drvdata(dev); + int ret; + + ret = regmap_update_bits(micfil->regmap, + REG_MICFIL_CTRL1, + MICFIL_CTRL1_MDIS_MASK, + 0); + if (ret) { + dev_err(dev, "failed to clear MDIS bit %d\n", ret); + return ret; + } + + ret = regmap_update_bits(micfil->regmap, + REG_MICFIL_CTRL1, + MICFIL_CTRL1_SRES_MASK, + MICFIL_CTRL1_SRES); + if (ret) { + dev_err(dev, "failed to reset MICFIL: %d\n", ret); + return ret; + } + + return 0; +} + +static int fsl_micfil_set_mclk_rate(struct fsl_micfil *micfil, + unsigned int freq) +{ + struct device *dev = &micfil->pdev->dev; + int ret; + + clk_disable_unprepare(micfil->mclk); + + ret = clk_set_rate(micfil->mclk, freq * 1024); + if (ret) + dev_warn(dev, "failed to set rate (%u): %d\n", + freq * 1024, ret); + + clk_prepare_enable(micfil->mclk); + + return ret; +} + +static int fsl_micfil_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); + + if (!micfil) { + dev_err(dai->dev, + "micfil dai priv_data not set\n"); + return -EINVAL; + } + + return 0; +} + +static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); + struct device *dev = &micfil->pdev->dev; + int ret; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + ret = fsl_micfil_reset(dev); + if (ret) { + dev_err(dev, "failed to soft reset\n"); + return ret; + } + + /* DMA Interrupt Selection - DISEL bits + * 00 - DMA and IRQ disabled + * 01 - DMA req enabled + * 10 - IRQ enabled + * 11 - reserved + */ + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_DISEL_MASK, + (1 << MICFIL_CTRL1_DISEL_SHIFT)); + if (ret) { + dev_err(dev, "failed to update DISEL bits\n"); + return ret; + } + + /* Enable the module */ + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_PDMIEN_MASK, + MICFIL_CTRL1_PDMIEN); + if (ret) { + dev_err(dev, "failed to enable the module\n"); + return ret; + } + + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + /* Disable the module */ + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_PDMIEN_MASK, + 0); + if (ret) { + dev_err(dev, "failed to enable the module\n"); + return ret; + } + + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_DISEL_MASK, + (0 << MICFIL_CTRL1_DISEL_SHIFT)); + if (ret) { + dev_err(dev, "failed to update DISEL bits\n"); + return ret; + } + break; + default: + return -EINVAL; + } + return 0; +} + +static int fsl_set_clock_params(struct device *dev, unsigned int rate) +{ + struct fsl_micfil *micfil = dev_get_drvdata(dev); + int clk_div; + int ret = 0; + + ret = fsl_micfil_set_mclk_rate(micfil, rate); + if (ret < 0) + dev_err(dev, "failed to set mclk[%lu] to rate %u\n", + clk_get_rate(micfil->mclk), rate); + + /* set CICOSR */ + ret |= regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, + MICFIL_CTRL2_CICOSR_MASK, + MICFIL_CTRL2_OSR_DEFAULT); + if (ret) + dev_err(dev, "failed to set CICOSR in reg 0x%X\n", + REG_MICFIL_CTRL2); + + /* set CLK_DIV */ + clk_div = get_clk_div(micfil, rate); + if (clk_div < 0) + ret = -EINVAL; + + ret |= regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, + MICFIL_CTRL2_CLKDIV_MASK, clk_div); + if (ret) + dev_err(dev, "failed to set CLKDIV in reg 0x%X\n", + REG_MICFIL_CTRL2); + + return ret; +} + +static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); + unsigned int channels = params_channels(params); + unsigned int rate = params_rate(params); + struct device *dev = &micfil->pdev->dev; + int ret; + + /* 1. Disable the module */ + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_PDMIEN_MASK, 0); + if (ret) { + dev_err(dev, "failed to disable the module\n"); + return ret; + } + + /* enable channels */ + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, + 0xFF, ((1 << channels) - 1)); + if (ret) { + dev_err(dev, "failed to enable channels %d, reg 0x%X\n", ret, + REG_MICFIL_CTRL1); + return ret; + } + + ret = fsl_set_clock_params(dev, rate); + if (ret < 0) { + dev_err(dev, "Failed to set clock parameters [%d]\n", ret); + return ret; + } + + micfil->dma_params_rx.maxburst = channels * MICFIL_DMA_MAXBURST_RX; + + return 0; +} + +static int fsl_micfil_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, + unsigned int freq, int dir) +{ + struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); + struct device *dev = &micfil->pdev->dev; + + int ret; + + if (!freq) + return 0; + + ret = fsl_micfil_set_mclk_rate(micfil, freq); + if (ret < 0) + dev_err(dev, "failed to set mclk[%lu] to rate %u\n", + clk_get_rate(micfil->mclk), freq); + + return ret; +} + +static struct snd_soc_dai_ops fsl_micfil_dai_ops = { + .startup = fsl_micfil_startup, + .trigger = fsl_micfil_trigger, + .hw_params = fsl_micfil_hw_params, + .set_sysclk = fsl_micfil_set_dai_sysclk, +}; + +static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) +{ + struct fsl_micfil *micfil = dev_get_drvdata(cpu_dai->dev); + struct device *dev = cpu_dai->dev; + unsigned int val; + int ret; + int i; + + /* set qsel to medium */ + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, + MICFIL_CTRL2_QSEL_MASK, MICFIL_MEDIUM_QUALITY); + if (ret) { + dev_err(dev, "failed to set quality mode bits, reg 0x%X\n", + REG_MICFIL_CTRL2); + return ret; + } + + /* set default gain to max_gain */ + regmap_write(micfil->regmap, REG_MICFIL_OUT_CTRL, 0x77777777); + for (i = 0; i < 8; i++) + micfil->channel_gain[i] = 0xF; + + snd_soc_dai_init_dma_data(cpu_dai, NULL, + &micfil->dma_params_rx); + + /* FIFO Watermark Control - FIFOWMK*/ + val = MICFIL_FIFO_CTRL_FIFOWMK(micfil->soc->fifo_depth) - 1; + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_FIFO_CTRL, + MICFIL_FIFO_CTRL_FIFOWMK_MASK, + val); + if (ret) { + dev_err(dev, "failed to set FIFOWMK\n"); + return ret; + } + + snd_soc_dai_set_drvdata(cpu_dai, micfil); + + return 0; +} + +static struct snd_soc_dai_driver fsl_micfil_dai = { + .probe = fsl_micfil_dai_probe, + .capture = { + .stream_name = "CPU-Capture", + .channels_min = 1, + .channels_max = 8, + .rates = FSL_MICFIL_RATES, + .formats = FSL_MICFIL_FORMATS, + }, + .ops = &fsl_micfil_dai_ops, +}; + +static const struct snd_soc_component_driver fsl_micfil_component = { + .name = "fsl-micfil-dai", + .controls = fsl_micfil_snd_controls, + .num_controls = ARRAY_SIZE(fsl_micfil_snd_controls), + +}; + +/* REGMAP */ +static const struct reg_default fsl_micfil_reg_defaults[] = { + {REG_MICFIL_CTRL1, 0x00000000}, + {REG_MICFIL_CTRL2, 0x00000000}, + {REG_MICFIL_STAT, 0x00000000}, + {REG_MICFIL_FIFO_CTRL, 0x00000007}, + {REG_MICFIL_FIFO_STAT, 0x00000000}, + {REG_MICFIL_DATACH0, 0x00000000}, + {REG_MICFIL_DATACH1, 0x00000000}, + {REG_MICFIL_DATACH2, 0x00000000}, + {REG_MICFIL_DATACH3, 0x00000000}, + {REG_MICFIL_DATACH4, 0x00000000}, + {REG_MICFIL_DATACH5, 0x00000000}, + {REG_MICFIL_DATACH6, 0x00000000}, + {REG_MICFIL_DATACH7, 0x00000000}, + {REG_MICFIL_DC_CTRL, 0x00000000}, + {REG_MICFIL_OUT_CTRL, 0x00000000}, + {REG_MICFIL_OUT_STAT, 0x00000000}, + {REG_MICFIL_VAD0_CTRL1, 0x00000000}, + {REG_MICFIL_VAD0_CTRL2, 0x000A0000}, + {REG_MICFIL_VAD0_STAT, 0x00000000}, + {REG_MICFIL_VAD0_SCONFIG, 0x00000000}, + {REG_MICFIL_VAD0_NCONFIG, 0x80000000}, + {REG_MICFIL_VAD0_NDATA, 0x00000000}, + {REG_MICFIL_VAD0_ZCD, 0x00000004}, +}; + +static bool fsl_micfil_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case REG_MICFIL_CTRL1: + case REG_MICFIL_CTRL2: + case REG_MICFIL_STAT: + case REG_MICFIL_FIFO_CTRL: + case REG_MICFIL_FIFO_STAT: + case REG_MICFIL_DATACH0: + case REG_MICFIL_DATACH1: + case REG_MICFIL_DATACH2: + case REG_MICFIL_DATACH3: + case REG_MICFIL_DATACH4: + case REG_MICFIL_DATACH5: + case REG_MICFIL_DATACH6: + case REG_MICFIL_DATACH7: + case REG_MICFIL_DC_CTRL: + case REG_MICFIL_OUT_CTRL: + case REG_MICFIL_OUT_STAT: + case REG_MICFIL_VAD0_CTRL1: + case REG_MICFIL_VAD0_CTRL2: + case REG_MICFIL_VAD0_STAT: + case REG_MICFIL_VAD0_SCONFIG: + case REG_MICFIL_VAD0_NCONFIG: + case REG_MICFIL_VAD0_NDATA: + case REG_MICFIL_VAD0_ZCD: + return true; + default: + return false; + } +} + +static bool fsl_micfil_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case REG_MICFIL_CTRL1: + case REG_MICFIL_CTRL2: + case REG_MICFIL_STAT: /* Write 1 to Clear */ + case REG_MICFIL_FIFO_CTRL: + case REG_MICFIL_FIFO_STAT: /* Write 1 to Clear */ + case REG_MICFIL_DC_CTRL: + case REG_MICFIL_OUT_CTRL: + case REG_MICFIL_OUT_STAT: /* Write 1 to Clear */ + case REG_MICFIL_VAD0_CTRL1: + case REG_MICFIL_VAD0_CTRL2: + case REG_MICFIL_VAD0_STAT: /* Write 1 to Clear */ + case REG_MICFIL_VAD0_SCONFIG: + case REG_MICFIL_VAD0_NCONFIG: + case REG_MICFIL_VAD0_ZCD: + return true; + default: + return false; + } +} + +static bool fsl_micfil_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case REG_MICFIL_STAT: + case REG_MICFIL_DATACH0: + case REG_MICFIL_DATACH1: + case REG_MICFIL_DATACH2: + case REG_MICFIL_DATACH3: + case REG_MICFIL_DATACH4: + case REG_MICFIL_DATACH5: + case REG_MICFIL_DATACH6: + case REG_MICFIL_DATACH7: + case REG_MICFIL_VAD0_STAT: + case REG_MICFIL_VAD0_NDATA: + return true; + default: + return false; + } +} + +static const struct regmap_config fsl_micfil_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + + .max_register = REG_MICFIL_VAD0_ZCD, + .reg_defaults = fsl_micfil_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(fsl_micfil_reg_defaults), + .readable_reg = fsl_micfil_readable_reg, + .volatile_reg = fsl_micfil_volatile_reg, + .writeable_reg = fsl_micfil_writeable_reg, + .cache_type = REGCACHE_RBTREE, +}; + +/* END OF REGMAP */ + +static irqreturn_t micfil_isr(int irq, void *devid) +{ + struct fsl_micfil *micfil = (struct fsl_micfil *)devid; + struct platform_device *pdev = micfil->pdev; + u32 stat_reg; + u32 fifo_stat_reg; + u32 ctrl1_reg; + bool dma_enabled; + int i; + + regmap_read(micfil->regmap, REG_MICFIL_STAT, &stat_reg); + regmap_read(micfil->regmap, REG_MICFIL_CTRL1, &ctrl1_reg); + regmap_read(micfil->regmap, REG_MICFIL_FIFO_STAT, &fifo_stat_reg); + + dma_enabled = MICFIL_DMA_ENABLED(ctrl1_reg); + + /* Channel 0-7 Output Data Flags */ + for (i = 0; i < MICFIL_OUTPUT_CHANNELS; i++) { + if (stat_reg & MICFIL_STAT_CHXF_MASK(i)) + dev_dbg(&pdev->dev, + "Data available in Data Channel %d\n", i); + /* if DMA is not enabled, field must be written with 1 + * to clear + */ + if (!dma_enabled) + regmap_write_bits(micfil->regmap, + REG_MICFIL_STAT, + MICFIL_STAT_CHXF_MASK(i), + 1); + } + + for (i = 0; i < MICFIL_FIFO_NUM; i++) { + if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_OVER_MASK(i)) + dev_dbg(&pdev->dev, + "FIFO Overflow Exception flag for channel %d\n", + i); + + if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_UNDER_MASK(i)) + dev_dbg(&pdev->dev, + "FIFO Underflow Exception flag for channel %d\n", + i); + } + + return IRQ_HANDLED; +} + +static irqreturn_t micfil_err_isr(int irq, void *devid) +{ + struct fsl_micfil *micfil = (struct fsl_micfil *)devid; + struct platform_device *pdev = micfil->pdev; + u32 stat_reg; + + regmap_read(micfil->regmap, REG_MICFIL_STAT, &stat_reg); + + if (stat_reg & MICFIL_STAT_BSY_FIL_MASK) + dev_dbg(&pdev->dev, "isr: Decimation Filter is running\n"); + + if (stat_reg & MICFIL_STAT_FIR_RDY_MASK) + dev_dbg(&pdev->dev, "isr: FIR Filter Data ready\n"); + + if (stat_reg & MICFIL_STAT_LOWFREQF_MASK) { + dev_dbg(&pdev->dev, "isr: ipg_clk_app is too low\n"); + regmap_write_bits(micfil->regmap, REG_MICFIL_STAT, + MICFIL_STAT_LOWFREQF_MASK, 1); + } + + return IRQ_HANDLED; +} + +static int fsl_micfil_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + const struct of_device_id *of_id; + struct fsl_micfil *micfil; + struct resource *res; + void __iomem *regs; + int ret, i; + unsigned long irqflag = 0; + + micfil = devm_kzalloc(&pdev->dev, sizeof(*micfil), GFP_KERNEL); + if (!micfil) + return -ENOMEM; + + micfil->pdev = pdev; + strncpy(micfil->name, np->name, sizeof(micfil->name) - 1); + + of_id = of_match_device(fsl_micfil_dt_ids, &pdev->dev); + if (!of_id || !of_id->data) + return -EINVAL; + + micfil->soc = of_id->data; + + /* ipg_clk is used to control the registers + * ipg_clk_app is used to operate the filter + */ + micfil->mclk = devm_clk_get(&pdev->dev, "ipg_clk_app"); + if (IS_ERR(micfil->mclk)) { + dev_err(&pdev->dev, "failed to get core clock: %ld\n", + PTR_ERR(micfil->mclk)); + return PTR_ERR(micfil->mclk); + } + + /* init regmap */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + micfil->regmap = devm_regmap_init_mmio_clk(&pdev->dev, + "ipg_clk", + regs, + &fsl_micfil_regmap_config); + if (IS_ERR(micfil->regmap)) { + dev_err(&pdev->dev, "failed to init MICFIL regmap: %ld\n", + PTR_ERR(micfil->regmap)); + return PTR_ERR(micfil->regmap); + } + + /* dataline mask for RX */ + ret = of_property_read_u32_index(np, + "fsl,dataline", + 0, + &micfil->dataline); + if (ret) + micfil->dataline = 1; + + if (micfil->dataline & ~micfil->soc->dataline) { + dev_err(&pdev->dev, "dataline setting error, Mask is 0x%X\n", + micfil->soc->dataline); + return -EINVAL; + } + + /* get IRQs */ + for (i = 0; i < MICFIL_IRQ_LINES; i++) { + micfil->irq[i] = platform_get_irq(pdev, i); + dev_err(&pdev->dev, "GET IRQ: %d\n", micfil->irq[i]); + if (micfil->irq[i] < 0) { + dev_err(&pdev->dev, "no irq for node %s\n", pdev->name); + return micfil->irq[i]; + } + } + + if (of_property_read_bool(np, "fsl,shared-interrupt")) + irqflag = IRQF_SHARED; + + /* Digital Microphone interface interrupt - IRQ 109 */ + ret = devm_request_irq(&pdev->dev, micfil->irq[0], + micfil_isr, irqflag, + micfil->name, micfil); + if (ret) { + dev_err(&pdev->dev, "failed to claim mic interface irq %u\n", + micfil->irq[0]); + return ret; + } + + /* Digital Microphone interface error interrupt - IRQ 110 */ + ret = devm_request_irq(&pdev->dev, micfil->irq[1], + micfil_err_isr, irqflag, + micfil->name, micfil); + if (ret) { + dev_err(&pdev->dev, "failed to claim mic interface error irq %u\n", + micfil->irq[1]); + return ret; + } + + micfil->dma_params_rx.chan_name = "rx"; + micfil->dma_params_rx.addr = res->start + REG_MICFIL_DATACH0; + micfil->dma_params_rx.maxburst = MICFIL_DMA_MAXBURST_RX; + + + platform_set_drvdata(pdev, micfil); + + pm_runtime_enable(&pdev->dev); + + ret = devm_snd_soc_register_component(&pdev->dev, &fsl_micfil_component, + &fsl_micfil_dai, 1); + if (ret) { + dev_err(&pdev->dev, "failed to register component %s\n", + fsl_micfil_component.name); + return ret; + } + + ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0); + if (ret) + dev_err(&pdev->dev, "failed to pcm register\n"); + + return ret; +} + +#ifdef CONFIG_PM +static int __maybe_unused fsl_micfil_runtime_suspend(struct device *dev) +{ + struct fsl_micfil *micfil = dev_get_drvdata(dev); + + regcache_cache_only(micfil->regmap, true); + + clk_disable_unprepare(micfil->mclk); + + return 0; +} + +static int __maybe_unused fsl_micfil_runtime_resume(struct device *dev) +{ + struct fsl_micfil *micfil = dev_get_drvdata(dev); + int ret; + + ret = clk_prepare_enable(micfil->mclk); + if (ret < 0) + return ret; + + regcache_cache_only(micfil->regmap, false); + regcache_mark_dirty(micfil->regmap); + regcache_sync(micfil->regmap); + + return 0; +} +#endif /* CONFIG_PM*/ + +#ifdef CONFIG_PM_SLEEP +static int __maybe_unused fsl_micfil_suspend(struct device *dev) +{ + pm_runtime_force_suspend(dev); + + return 0; +} + +static int __maybe_unused fsl_micfil_resume(struct device *dev) +{ + pm_runtime_force_resume(dev); + + return 0; +} +#endif /* CONFIG_PM_SLEEP */ + +static const struct dev_pm_ops fsl_micfil_pm_ops = { + SET_RUNTIME_PM_OPS(fsl_micfil_runtime_suspend, + fsl_micfil_runtime_resume, + NULL) + SET_SYSTEM_SLEEP_PM_OPS(fsl_micfil_suspend, + fsl_micfil_resume) +}; + +static struct platform_driver fsl_micfil_driver = { + .probe = fsl_micfil_probe, + .driver = { + .name = "fsl-micfil-dai", + .pm = &fsl_micfil_pm_ops, + .of_match_table = fsl_micfil_dt_ids, + }, +}; +module_platform_driver(fsl_micfil_driver); + +MODULE_AUTHOR("Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com>"); +MODULE_DESCRIPTION("NXP PDM Microphone Interface (MICFIL) driver"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/fsl/fsl_micfil.h b/sound/soc/fsl/fsl_micfil.h new file mode 100644 index 0000000..bac825c --- /dev/null +++ b/sound/soc/fsl/fsl_micfil.h @@ -0,0 +1,283 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * PDM Microphone Interface for the NXP i.MX SoC + * Copyright 2018 NXP + */ + +#ifndef _FSL_MICFIL_H +#define _FSL_MICFIL_H + +/* MICFIL Register Map */ +#define REG_MICFIL_CTRL1 0x00 +#define REG_MICFIL_CTRL2 0x04 +#define REG_MICFIL_STAT 0x08 +#define REG_MICFIL_FIFO_CTRL 0x10 +#define REG_MICFIL_FIFO_STAT 0x14 +#define REG_MICFIL_DATACH0 0x24 +#define REG_MICFIL_DATACH1 0x28 +#define REG_MICFIL_DATACH2 0x2C +#define REG_MICFIL_DATACH3 0x30 +#define REG_MICFIL_DATACH4 0x34 +#define REG_MICFIL_DATACH5 0x38 +#define REG_MICFIL_DATACH6 0x3C +#define REG_MICFIL_DATACH7 0x40 +#define REG_MICFIL_DC_CTRL 0x64 +#define REG_MICFIL_OUT_CTRL 0x74 +#define REG_MICFIL_OUT_STAT 0x7C +#define REG_MICFIL_VAD0_CTRL1 0x90 +#define REG_MICFIL_VAD0_CTRL2 0x94 +#define REG_MICFIL_VAD0_STAT 0x98 +#define REG_MICFIL_VAD0_SCONFIG 0x9C +#define REG_MICFIL_VAD0_NCONFIG 0xA0 +#define REG_MICFIL_VAD0_NDATA 0xA4 +#define REG_MICFIL_VAD0_ZCD 0xA8 + +/* MICFIL Control Register 1 -- REG_MICFILL_CTRL1 0x00 */ +#define MICFIL_CTRL1_MDIS_SHIFT 31 +#define MICFIL_CTRL1_MDIS_MASK BIT(MICFIL_CTRL1_MDIS_SHIFT) +#define MICFIL_CTRL1_MDIS BIT(MICFIL_CTRL1_MDIS_SHIFT) +#define MICFIL_CTRL1_DOZEN_SHIFT 30 +#define MICFIL_CTRL1_DOZEN_MASK BIT(MICFIL_CTRL1_DOZEN_SHIFT) +#define MICFIL_CTRL1_DOZEN BIT(MICFIL_CTRL1_DOZEN_SHIFT) +#define MICFIL_CTRL1_PDMIEN_SHIFT 29 +#define MICFIL_CTRL1_PDMIEN_MASK BIT(MICFIL_CTRL1_PDMIEN_SHIFT) +#define MICFIL_CTRL1_PDMIEN BIT(MICFIL_CTRL1_PDMIEN_SHIFT) +#define MICFIL_CTRL1_DBG_SHIFT 28 +#define MICFIL_CTRL1_DBG_MASK BIT(MICFIL_CTRL1_DBG_SHIFT) +#define MICFIL_CTRL1_DBG BIT(MICFIL_CTRL1_DBG_SHIFT) +#define MICFIL_CTRL1_SRES_SHIFT 27 +#define MICFIL_CTRL1_SRES_MASK BIT(MICFIL_CTRL1_SRES_SHIFT) +#define MICFIL_CTRL1_SRES BIT(MICFIL_CTRL1_SRES_SHIFT) +#define MICFIL_CTRL1_DBGE_SHIFT 26 +#define MICFIL_CTRL1_DBGE_MASK BIT(MICFIL_CTRL1_DBGE_SHIFT) +#define MICFIL_CTRL1_DBGE BIT(MICFIL_CTRL1_DBGE_SHIFT) +#define MICFIL_CTRL1_DISEL_SHIFT 24 +#define MICFIL_CTRL1_DISEL_WIDTH 2 +#define MICFIL_CTRL1_DISEL_MASK ((BIT(MICFIL_CTRL1_DISEL_WIDTH) - 1) \ + << MICFIL_CTRL1_DISEL_SHIFT) +#define MICFIL_CTRL1_DISEL(v) (((v) << MICFIL_CTRL1_DISEL_SHIFT) \ + & MICFIL_CTRL1_DISEL_MASK) +#define MICFIL_CTRL1_ERREN_SHIFT 23 +#define MICFIL_CTRL1_ERREN_MASK BIT(MICFIL_CTRL1_ERREN_SHIFT) +#define MICFIL_CTRL1_ERREN BIT(MICFIL_CTRL1_ERREN_SHIFT) +#define MICFIL_CTRL1_CHEN_SHIFT 0 +#define MICFIL_CTRL1_CHEN_WIDTH 8 +#define MICFIL_CTRL1_CHEN_MASK(x) (BIT(x) << MICFIL_CTRL1_CHEN_SHIFT) +#define MICFIL_CTRL1_CHEN(x) (MICFIL_CTRL1_CHEN_MASK(x)) + +/* MICFIL Control Register 2 -- REG_MICFILL_CTRL2 0x04 */ +#define MICFIL_CTRL2_QSEL_SHIFT 25 +#define MICFIL_CTRL2_QSEL_WIDTH 3 +#define MICFIL_CTRL2_QSEL_MASK ((BIT(MICFIL_CTRL2_QSEL_WIDTH) - 1) \ + << MICFIL_CTRL2_QSEL_SHIFT) +#define MICFIL_HIGH_QUALITY BIT(MICFIL_CTRL2_QSEL_SHIFT) +#define MICFIL_MEDIUM_QUALITY (0 << MICFIL_CTRL2_QSEL_SHIFT) +#define MICFIL_LOW_QUALITY (7 << MICFIL_CTRL2_QSEL_SHIFT) +#define MICFIL_VLOW0_QUALITY (6 << MICFIL_CTRL2_QSEL_SHIFT) +#define MICFIL_VLOW1_QUALITY (5 << MICFIL_CTRL2_QSEL_SHIFT) +#define MICFIL_VLOW2_QUALITY (4 << MICFIL_CTRL2_QSEL_SHIFT) + +#define MICFIL_CTRL2_CICOSR_SHIFT 16 +#define MICFIL_CTRL2_CICOSR_WIDTH 4 +#define MICFIL_CTRL2_CICOSR_MASK ((BIT(MICFIL_CTRL2_CICOSR_WIDTH) - 1) \ + << MICFIL_CTRL2_CICOSR_SHIFT) +#define MICFIL_CTRL2_CICOSR(v) (((v) << MICFIL_CTRL2_CICOSR_SHIFT) \ + & MICFIL_CTRL2_CICOSR_MASK) +#define MICFIL_CTRL2_CLKDIV_SHIFT 0 +#define MICFIL_CTRL2_CLKDIV_WIDTH 8 +#define MICFIL_CTRL2_CLKDIV_MASK ((BIT(MICFIL_CTRL2_CLKDIV_WIDTH) - 1) \ + << MICFIL_CTRL2_CLKDIV_SHIFT) +#define MICFIL_CTRL2_CLKDIV(v) (((v) << MICFIL_CTRL2_CLKDIV_SHIFT) \ + & MICFIL_CTRL2_CLKDIV_MASK) + +/* MICFIL Status Register -- REG_MICFIL_STAT 0x08 */ +#define MICFIL_STAT_BSY_FIL_SHIFT 31 +#define MICFIL_STAT_BSY_FIL_MASK BIT(MICFIL_STAT_BSY_FIL_SHIFT) +#define MICFIL_STAT_BSY_FIL BIT(MICFIL_STAT_BSY_FIL_SHIFT) +#define MICFIL_STAT_FIR_RDY_SHIFT 30 +#define MICFIL_STAT_FIR_RDY_MASK BIT(MICFIL_STAT_FIR_RDY_SHIFT) +#define MICFIL_STAT_FIR_RDY BIT(MICFIL_STAT_FIR_RDY_SHIFT) +#define MICFIL_STAT_LOWFREQF_SHIFT 29 +#define MICFIL_STAT_LOWFREQF_MASK BIT(MICFIL_STAT_LOWFREQF_SHIFT) +#define MICFIL_STAT_LOWFREQF BIT(MICFIL_STAT_LOWFREQF_SHIFT) +#define MICFIL_STAT_CHXF_SHIFT(v) (v) +#define MICFIL_STAT_CHXF_MASK(v) BIT(MICFIL_STAT_CHXF_SHIFT(v)) +#define MICFIL_STAT_CHXF(v) BIT(MICFIL_STAT_CHXF_SHIFT(v)) + +/* MICFIL FIFO Control Register -- REG_MICFIL_FIFO_CTRL 0x10 */ +#define MICFIL_FIFO_CTRL_FIFOWMK_SHIFT 0 +#define MICFIL_FIFO_CTRL_FIFOWMK_WIDTH 3 +#define MICFIL_FIFO_CTRL_FIFOWMK_MASK ((BIT(MICFIL_FIFO_CTRL_FIFOWMK_WIDTH) - 1) \ + << MICFIL_FIFO_CTRL_FIFOWMK_SHIFT) +#define MICFIL_FIFO_CTRL_FIFOWMK(v) (((v) << MICFIL_FIFO_CTRL_FIFOWMK_SHIFT) \ + & MICFIL_FIFO_CTRL_FIFOWMK_MASK) + +/* MICFIL FIFO Status Register -- REG_MICFIL_FIFO_STAT 0x14 */ +#define MICFIL_FIFO_STAT_FIFOX_OVER_SHIFT(v) (v) +#define MICFIL_FIFO_STAT_FIFOX_OVER_MASK(v) BIT(MICFIL_FIFO_STAT_FIFOX_OVER_SHIFT(v)) +#define MICFIL_FIFO_STAT_FIFOX_UNDER_SHIFT(v) ((v) + 8) +#define MICFIL_FIFO_STAT_FIFOX_UNDER_MASK(v) BIT(MICFIL_FIFO_STAT_FIFOX_UNDER_SHIFT(v)) + +/* MICFIL HWVAD0 Control 1 Register -- REG_MICFIL_VAD0_CTRL1*/ +#define MICFIL_VAD0_CTRL1_CHSEL_SHIFT 24 +#define MICFIL_VAD0_CTRL1_CHSEL_WIDTH 3 +#define MICFIL_VAD0_CTRL1_CHSEL_MASK ((BIT(MICFIL_VAD0_CTRL1_CHSEL_WIDTH) - 1) \ + << MICFIL_VAD0_CTRL1_CHSEL_SHIFT) +#define MICFIL_VAD0_CTRL1_CHSEL(v) (((v) << MICFIL_VAD0_CTRL1_CHSEL_SHIFT) \ + & MICFIL_VAD0_CTRL1_CHSEL_MASK) +#define MICFIL_VAD0_CTRL1_CICOSR_SHIFT 16 +#define MICFIL_VAD0_CTRL1_CICOSR_WIDTH 4 +#define MICFIL_VAD0_CTRL1_CICOSR_MASK ((BIT(MICFIL_VAD0_CTRL1_CICOSR_WIDTH) - 1) \ + << MICFIL_VAD0_CTRL1_CICOSR_SHIFT) +#define MICFIL_VAD0_CTRL1_CICOSR(v) (((v) << MICFIL_VAD0_CTRL1_CICOSR_SHIFT) \ + & MICFIL_VAD0_CTRL1_CICOSR_MASK) +#define MICFIL_VAD0_CTRL1_INITT_SHIFT 8 +#define MICFIL_VAD0_CTRL1_INITT_WIDTH 5 +#define MICFIL_VAD0_CTRL1_INITT_MASK ((BIT(MICFIL_VAD0_CTRL1_INITT_WIDTH) - 1) \ + << MICFIL_VAD0_CTRL1_INITT_SHIFT) +#define MICFIL_VAD0_CTRL1_INITT(v) (((v) << MICFIL_VAD0_CTRL1_INITT_SHIFT) \ + & MICFIL_VAD0_CTRL1_INITT_MASK) +#define MICFIL_VAD0_CTRL1_ST10_SHIFT 4 +#define MICFIL_VAD0_CTRL1_ST10_MASK BIT(MICFIL_VAD0_CTRL1_ST10_SHIFT) +#define MICFIL_VAD0_CTRL1_ST10 BIT(MICFIL_VAD0_CTRL1_ST10_SHIFT) +#define MICFIL_VAD0_CTRL1_ERIE_SHIFT 3 +#define MICFIL_VAD0_CTRL1_ERIE_MASK BIT(MICFIL_VAD0_CTRL1_ERIE_SHIFT) +#define MICFIL_VAD0_CTRL1_ERIE BIT(MICFIL_VAD0_CTRL1_ERIE_SHIFT) +#define MICFIL_VAD0_CTRL1_IE_SHIFT 2 +#define MICFIL_VAD0_CTRL1_IE_MASK BIT(MICFIL_VAD0_CTRL1_IE_SHIFT) +#define MICFIL_VAD0_CTRL1_IE BIT(MICFIL_VAD0_CTRL1_IE_SHIFT) +#define MICFIL_VAD0_CTRL1_RST_SHIFT 1 +#define MICFIL_VAD0_CTRL1_RST_MASK BIT(MICFIL_VAD0_CTRL1_RST_SHIFT) +#define MICFIL_VAD0_CTRL1_RST BIT(MICFIL_VAD0_CTRL1_RST_SHIFT) +#define MICFIL_VAD0_CTRL1_EN_SHIFT 0 +#define MICFIL_VAD0_CTRL1_EN_MASK BIT(MICFIL_VAD0_CTRL1_EN_SHIFT) +#define MICFIL_VAD0_CTRL1_EN BIT(MICFIL_VAD0_CTRL1_EN_SHIFT) + +/* MICFIL HWVAD0 Control 2 Register -- REG_MICFIL_VAD0_CTRL2*/ +#define MICFIL_VAD0_CTRL2_FRENDIS_SHIFT 31 +#define MICFIL_VAD0_CTRL2_FRENDIS_MASK BIT(MICFIL_VAD0_CTRL2_FRENDIS_SHIFT) +#define MICFIL_VAD0_CTRL2_FRENDIS BIT(MICFIL_VAD0_CTRL2_FRENDIS_SHIFT) +#define MICFIL_VAD0_CTRL2_PREFEN_SHIFT 30 +#define MICFIL_VAD0_CTRL2_PREFEN_MASK BIT(MICFIL_VAD0_CTRL2_PREFEN_SHIFT) +#define MICFIL_VAD0_CTRL2_PREFEN BIT(MICFIL_VAD0_CTRL2_PREFEN_SHIFT) +#define MICFIL_VAD0_CTRL2_FOUTDIS_SHIFT 28 +#define MICFIL_VAD0_CTRL2_FOUTDIS_MASK BIT(MICFIL_VAD0_CTRL2_FOUTDIS_SHIFT) +#define MICFIL_VAD0_CTRL2_FOUTDIS BIT(MICFIL_VAD0_CTRL2_FOUTDIS_SHIFT) +#define MICFIL_VAD0_CTRL2_FRAMET_SHIFT 16 +#define MICFIL_VAD0_CTRL2_FRAMET_WIDTH 6 +#define MICFIL_VAD0_CTRL2_FRAMET_MASK ((BIT(MICFIL_VAD0_CTRL2_FRAMET_WIDTH) - 1) \ + << MICFIL_VAD0_CTRL2_FRAMET_SHIFT) +#define MICFIL_VAD0_CTRL2_FRAMET(v) (((v) << MICFIL_VAD0_CTRL2_FRAMET_SHIFT) \ + & MICFIL_VAD0_CTRL2_FRAMET_MASK) +#define MICFIL_VAD0_CTRL2_INPGAIN_SHIFT 8 +#define MICFIL_VAD0_CTRL2_INPGAIN_WIDTH 4 +#define MICFIL_VAD0_CTRL2_INPGAIN_MASK ((BIT(MICFIL_VAD0_CTRL2_INPGAIN_WIDTH) - 1) \ + << MICFIL_VAD0_CTRL2_INPGAIN_SHIFT) +#define MICFIL_VAD0_CTRL2_INPGAIN(v) (((v) << MICFIL_VAD0_CTRL2_INPGAIN_SHIFT) \ + & MICFIL_VAD0_CTRL2_INPGAIN_MASK) +#define MICFIL_VAD0_CTRL2_HPF_SHIFT 0 +#define MICFIL_VAD0_CTRL2_HPF_WIDTH 2 +#define MICFIL_VAD0_CTRL2_HPF_MASK ((BIT(MICFIL_VAD0_CTRL2_HPF_WIDTH) - 1) \ + << MICFIL_VAD0_CTRL2_HPF_SHIFT) +#define MICFIL_VAD0_CTRL2_HPF(v) (((v) << MICFIL_VAD0_CTRL2_HPF_SHIFT) \ + & MICFIL_VAD0_CTRL2_HPF_MASK) + +/* MICFIL HWVAD0 Signal CONFIG Register -- REG_MICFIL_VAD0_SCONFIG */ +#define MICFIL_VAD0_SCONFIG_SFILEN_SHIFT 31 +#define MICFIL_VAD0_SCONFIG_SFILEN_MASK BIT(MICFIL_VAD0_SCONFIG_SFILEN_SHIFT) +#define MICFIL_VAD0_SCONFIG_SFILEN BIT(MICFIL_VAD0_SCONFIG_SFILEN_SHIFT) +#define MICFIL_VAD0_SCONFIG_SMAXEN_SHIFT 30 +#define MICFIL_VAD0_SCONFIG_SMAXEN_MASK BIT(MICFIL_VAD0_SCONFIG_SMAXEN_SHIFT) +#define MICFIL_VAD0_SCONFIG_SMAXEN BIT(MICFIL_VAD0_SCONFIG_SMAXEN_SHIFT) +#define MICFIL_VAD0_SCONFIG_SGAIN_SHIFT 0 +#define MICFIL_VAD0_SCONFIG_SGAIN_WIDTH 4 +#define MICFIL_VAD0_SCONFIG_SGAIN_MASK ((BIT(MICFIL_VAD0_SCONFIG_SGAIN_WIDTH) - 1) \ + << MICFIL_VAD0_SCONFIG_SGAIN_SHIFT) +#define MICFIL_VAD0_SCONFIG_SGAIN(v) (((v) << MICFIL_VAD0_SCONFIG_SGAIN_SHIFT) \ + & MICFIL_VAD0_SCONFIG_SGAIN_MASK) + +/* MICFIL HWVAD0 Noise CONFIG Register -- REG_MICFIL_VAD0_NCONFIG */ +#define MICFIL_VAD0_NCONFIG_NFILAUT_SHIFT 31 +#define MICFIL_VAD0_NCONFIG_NFILAUT_MASK BIT(MICFIL_VAD0_NCONFIG_NFILAUT_SHIFT) +#define MICFIL_VAD0_NCONFIG_NFILAUT BIT(MICFIL_VAD0_NCONFIG_NFILAUT_SHIFT) +#define MICFIL_VAD0_NCONFIG_NMINEN_SHIFT 30 +#define MICFIL_VAD0_NCONFIG_NMINEN_MASK BIT(MICFIL_VAD0_NCONFIG_NMINEN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NMINEN BIT(MICFIL_VAD0_NCONFIG_NMINEN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NDECEN_SHIFT 29 +#define MICFIL_VAD0_NCONFIG_NDECEN_MASK BIT(MICFIL_VAD0_NCONFIG_NDECEN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NDECEN BIT(MICFIL_VAD0_NCONFIG_NDECEN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NOREN_SHIFT 28 +#define MICFIL_VAD0_NCONFIG_NOREN BIT(MICFIL_VAD0_NCONFIG_NOREN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT 8 +#define MICFIL_VAD0_NCONFIG_NFILADJ_WIDTH 5 +#define MICFIL_VAD0_NCONFIG_NFILADJ_MASK ((BIT(MICFIL_VAD0_NCONFIG_NFILADJ_WIDTH) - 1) \ + << MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT) +#define MICFIL_VAD0_NCONFIG_NFILADJ(v) (((v) << MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT) \ + & MICFIL_VAD0_NCONFIG_NFILADJ_MASK) +#define MICFIL_VAD0_NCONFIG_NGAIN_SHIFT 0 +#define MICFIL_VAD0_NCONFIG_NGAIN_WIDTH 4 +#define MICFIL_VAD0_NCONFIG_NGAIN_MASK ((BIT(MICFIL_VAD0_NCONFIG_NGAIN_WIDTH) - 1) \ + << MICFIL_VAD0_NCONFIG_NGAIN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NGAIN(v) (((v) << MICFIL_VAD0_NCONFIG_NGAIN_SHIFT) \ + & MICFIL_VAD0_NCONFIG_NGAIN_MASK) + +/* MICFIL HWVAD0 Zero-Crossing Detector - REG_MICFIL_VAD0_ZCD */ +#define MICFIL_VAD0_ZCD_ZCDTH_SHIFT 16 +#define MICFIL_VAD0_ZCD_ZCDTH_WIDTH 10 +#define MICFIL_VAD0_ZCD_ZCDTH_MASK ((BIT(MICFIL_VAD0_ZCD_ZCDTH_WIDTH) - 1) \ + << MICFIL_VAD0_ZCD_ZCDTH_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDTH(v) (((v) << MICFIL_VAD0_ZCD_ZCDTH_SHIFT)\ + & MICFIL_VAD0_ZCD_ZCDTH_MASK) +#define MICFIL_VAD0_ZCD_ZCDADJ_SHIFT 8 +#define MICFIL_VAD0_ZCD_ZCDADJ_WIDTH 4 +#define MICFIL_VAD0_ZCD_ZCDADJ_MASK ((BIT(MICFIL_VAD0_ZCD_ZCDADJ_WIDTH) - 1)\ + << MICFIL_VAD0_ZCD_ZCDADJ_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDADJ(v) (((v) << MICFIL_VAD0_ZCD_ZCDADJ_SHIFT)\ + & MICFIL_VAD0_ZCD_ZCDADJ_MASK) +#define MICFIL_VAD0_ZCD_ZCDAND_SHIFT 4 +#define MICFIL_VAD0_ZCD_ZCDAND_MASK BIT(MICFIL_VAD0_ZCD_ZCDAND_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDAND BIT(MICFIL_VAD0_ZCD_ZCDAND_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDAUT_SHIFT 2 +#define MICFIL_VAD0_ZCD_ZCDAUT_MASK BIT(MICFIL_VAD0_ZCD_ZCDAUT_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDAUT BIT(MICFIL_VAD0_ZCD_ZCDAUT_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDEN_SHIFT 0 +#define MICFIL_VAD0_ZCD_ZCDEN_MASK BIT(MICFIL_VAD0_ZCD_ZCDEN_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDEN BIT(MICFIL_VAD0_ZCD_ZCDEN_SHIFT) + +/* MICFIL HWVAD0 Status Register - REG_MICFIL_VAD0_STAT */ +#define MICFIL_VAD0_STAT_INITF_SHIFT 31 +#define MICFIL_VAD0_STAT_INITF_MASK BIT(MICFIL_VAD0_STAT_INITF_SHIFT) +#define MICFIL_VAD0_STAT_INITF BIT(MICFIL_VAD0_STAT_INITF_SHIFT) +#define MICFIL_VAD0_STAT_INSATF_SHIFT 16 +#define MICFIL_VAD0_STAT_INSATF_MASK BIT(MICFIL_VAD0_STAT_INSATF_SHIFT) +#define MICFIL_VAD0_STAT_INSATF BIT(MICFIL_VAD0_STAT_INSATF_SHIFT) +#define MICFIL_VAD0_STAT_EF_SHIFT 15 +#define MICFIL_VAD0_STAT_EF_MASK BIT(MICFIL_VAD0_STAT_EF_SHIFT) +#define MICFIL_VAD0_STAT_EF BIT(MICFIL_VAD0_STAT_EF_SHIFT) +#define MICFIL_VAD0_STAT_IF_SHIFT 0 +#define MICFIL_VAD0_STAT_IF_MASK BIT(MICFIL_VAD0_STAT_IF_SHIFT) +#define MICFIL_VAD0_STAT_IF BIT(MICFIL_VAD0_STAT_IF_SHIFT) + +/* MICFIL Output Control Register */ +#define MICFIL_OUTGAIN_CHX_SHIFT(v) (4 * (v)) + +/* Constants */ +#define MICFIL_DMA_IRQ_DISABLED(v) ((v) & MICFIL_CTRL1_DISEL_MASK) +#define MICFIL_DMA_ENABLED(v) ((0x1 << MICFIL_CTRL1_DISEL_SHIFT) \ + == ((v) & MICFIL_CTRL1_DISEL_MASK)) +#define MICFIL_IRQ_ENABLED(v) ((0x2 << MICFIL_CTRL1_DISEL_SHIFT) \ + == ((v) & MICFIL_CTRL1_DISEL_MASK)) +#define MICFIL_OUTPUT_CHANNELS 8 +#define MICFIL_FIFO_NUM 8 + +#define FIFO_PTRWID 3 +#define FIFO_LEN BIT(FIFO_PTRWID) + +#define MICFIL_IRQ_LINES 2 +#define MICFIL_MAX_RETRY 25 +#define MICFIL_SLEEP_MIN 90000 /* in us */ +#define MICFIL_SLEEP_MAX 100000 /* in us */ +#define MICFIL_DMA_MAXBURST_RX 6 +#define MICFIL_CTRL2_OSR_DEFAULT (0 << MICFIL_CTRL2_CICOSR_SHIFT) + +#endif /* _FSL_MICFIL_H */ -- 2.7.4 ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Applied "ASoC: Add MICFIL SoC Digital Audio Interface driver." to the asoc tree 2019-01-04 9:17 ` [PATCH v2 2/2] ASoC: Add MICFIL SoC Digital Audio Interface driver Cosmin Samoila @ 2019-01-07 18:57 ` Mark Brown 0 siblings, 0 replies; 5+ messages in thread From: Mark Brown @ 2019-01-07 18:57 UTC (permalink / raw) Cc: devicetree@vger.kernel.org, alsa-devel, robh@kernel.org, S.j. Wang, broonie@kernel.org, dl-linux-imx, Cosmin-Gabriel Samoila, gabrielcsmo@gmail.com The patch ASoC: Add MICFIL SoC Digital Audio Interface driver. has been applied to the asoc tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From 47a70e6fc9a80c8d5ef69e978d25582842f9777f Mon Sep 17 00:00:00 2001 From: Cosmin Samoila <cosmin.samoila@nxp.com> Date: Fri, 4 Jan 2019 09:17:38 +0000 Subject: [PATCH] ASoC: Add MICFIL SoC Digital Audio Interface driver. Add Digital Audio Interface driver that convers PDM bitstream to PCM format. Features: - Fixed filtering characteristics for audio application. - Full or partial set of channels operation with individual enable control. - Programmable PDM clock generator. - Programmable decimation rate. - 16-bit signed output result. - Overall stopband attenuation more than 80dB. - Overall passband ripple less than 0.2dB. Signed-off-by: Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com> Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org> --- sound/soc/fsl/Kconfig | 9 + sound/soc/fsl/Makefile | 2 + sound/soc/fsl/fsl_micfil.c | 826 +++++++++++++++++++++++++++++++++++++ sound/soc/fsl/fsl_micfil.h | 283 +++++++++++++ 4 files changed, 1120 insertions(+) create mode 100644 sound/soc/fsl/fsl_micfil.c create mode 100644 sound/soc/fsl/fsl_micfil.h diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 2e75b5bc5f1d..7b1d9970be8b 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -57,6 +57,15 @@ config SND_SOC_FSL_ESAI This option is only useful for out-of-tree drivers since in-tree drivers select it automatically. +config SND_SOC_FSL_MICFIL + tristate "Pulse Density Modulation Microphone Interface (MICFIL) module support" + select REGMAP_MMIO + select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n + select SND_SOC_GENERIC_DMAENGINE_PCM + help + Say Y if you want to add Pulse Density Modulation microphone + interface (MICFIL) support for NXP. + config SND_SOC_FSL_UTILS tristate diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index de94fa057e24..3c0ff315b971 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -19,6 +19,7 @@ snd-soc-fsl-ssi-y := fsl_ssi.o snd-soc-fsl-ssi-$(CONFIG_DEBUG_FS) += fsl_ssi_dbg.o snd-soc-fsl-spdif-objs := fsl_spdif.o snd-soc-fsl-esai-objs := fsl_esai.o +snd-soc-fsl-micfil-objs := fsl_micfil.o snd-soc-fsl-utils-objs := fsl_utils.o snd-soc-fsl-dma-objs := fsl_dma.o obj-$(CONFIG_SND_SOC_FSL_ASOC_CARD) += snd-soc-fsl-asoc-card.o @@ -27,6 +28,7 @@ obj-$(CONFIG_SND_SOC_FSL_SAI) += snd-soc-fsl-sai.o obj-$(CONFIG_SND_SOC_FSL_SSI) += snd-soc-fsl-ssi.o obj-$(CONFIG_SND_SOC_FSL_SPDIF) += snd-soc-fsl-spdif.o obj-$(CONFIG_SND_SOC_FSL_ESAI) += snd-soc-fsl-esai.o +obj-$(CONFIG_SND_SOC_FSL_MICFIL) += snd-soc-fsl-micfil.o obj-$(CONFIG_SND_SOC_FSL_UTILS) += snd-soc-fsl-utils.o obj-$(CONFIG_SND_SOC_POWERPC_DMA) += snd-soc-fsl-dma.o diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c new file mode 100644 index 000000000000..40c07e756481 --- /dev/null +++ b/sound/soc/fsl/fsl_micfil.c @@ -0,0 +1,826 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright 2018 NXP + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/interrupt.h> +#include <linux/kobject.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/of_platform.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <linux/sysfs.h> +#include <linux/types.h> +#include <sound/dmaengine_pcm.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/tlv.h> +#include <sound/core.h> + +#include "fsl_micfil.h" +#include "imx-pcm.h" + +#define FSL_MICFIL_RATES SNDRV_PCM_RATE_8000_48000 +#define FSL_MICFIL_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) + +struct fsl_micfil { + struct platform_device *pdev; + struct regmap *regmap; + const struct fsl_micfil_soc_data *soc; + struct clk *mclk; + struct snd_dmaengine_dai_dma_data dma_params_rx; + unsigned int dataline; + char name[32]; + int irq[MICFIL_IRQ_LINES]; + unsigned int mclk_streams; + int quality; /*QUALITY 2-0 bits */ + bool slave_mode; + int channel_gain[8]; +}; + +struct fsl_micfil_soc_data { + unsigned int fifos; + unsigned int fifo_depth; + unsigned int dataline; + bool imx; +}; + +static struct fsl_micfil_soc_data fsl_micfil_imx8mm = { + .imx = true, + .fifos = 8, + .fifo_depth = 8, + .dataline = 0xf, +}; + +static const struct of_device_id fsl_micfil_dt_ids[] = { + { .compatible = "fsl,imx8mm-micfil", .data = &fsl_micfil_imx8mm }, + {} +}; +MODULE_DEVICE_TABLE(of, fsl_micfil_dt_ids); + +/* Table 5. Quality Modes + * Medium 0 0 0 + * High 0 0 1 + * Very Low 2 1 0 0 + * Very Low 1 1 0 1 + * Very Low 0 1 1 0 + * Low 1 1 1 + */ +static const char * const micfil_quality_select_texts[] = { + "Medium", "High", + "N/A", "N/A", + "VLow2", "VLow1", + "VLow0", "Low", +}; + +static const struct soc_enum fsl_micfil_quality_enum = + SOC_ENUM_SINGLE(REG_MICFIL_CTRL2, + MICFIL_CTRL2_QSEL_SHIFT, + ARRAY_SIZE(micfil_quality_select_texts), + micfil_quality_select_texts); + +static DECLARE_TLV_DB_SCALE(gain_tlv, 0, 100, 0); + +static const struct snd_kcontrol_new fsl_micfil_snd_controls[] = { + SOC_SINGLE_SX_TLV("CH0 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(0), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH1 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(1), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH2 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(2), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH3 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(3), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH4 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(4), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH5 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(5), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH6 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(6), 0xF, 0x7, gain_tlv), + SOC_SINGLE_SX_TLV("CH7 Volume", REG_MICFIL_OUT_CTRL, + MICFIL_OUTGAIN_CHX_SHIFT(7), 0xF, 0x7, gain_tlv), + SOC_ENUM_EXT("MICFIL Quality Select", + fsl_micfil_quality_enum, + snd_soc_get_enum_double, snd_soc_put_enum_double), +}; + +static inline int get_pdm_clk(struct fsl_micfil *micfil, + unsigned int rate) +{ + u32 ctrl2_reg; + int qsel, osr; + int bclk; + + regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); + osr = 16 - ((ctrl2_reg & MICFIL_CTRL2_CICOSR_MASK) + >> MICFIL_CTRL2_CICOSR_SHIFT); + + regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); + qsel = ctrl2_reg & MICFIL_CTRL2_QSEL_MASK; + + switch (qsel) { + case MICFIL_HIGH_QUALITY: + bclk = rate * 8 * osr / 2; /* kfactor = 0.5 */ + break; + case MICFIL_MEDIUM_QUALITY: + case MICFIL_VLOW0_QUALITY: + bclk = rate * 4 * osr * 1; /* kfactor = 1 */ + break; + case MICFIL_LOW_QUALITY: + case MICFIL_VLOW1_QUALITY: + bclk = rate * 2 * osr * 2; /* kfactor = 2 */ + break; + case MICFIL_VLOW2_QUALITY: + bclk = rate * osr * 4; /* kfactor = 4 */ + break; + default: + dev_err(&micfil->pdev->dev, + "Please make sure you select a valid quality.\n"); + bclk = -1; + break; + } + + return bclk; +} + +static inline int get_clk_div(struct fsl_micfil *micfil, + unsigned int rate) +{ + u32 ctrl2_reg; + long mclk_rate; + int osr; + int clk_div; + + regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); + osr = 16 - ((ctrl2_reg & MICFIL_CTRL2_CICOSR_MASK) + >> MICFIL_CTRL2_CICOSR_SHIFT); + + mclk_rate = clk_get_rate(micfil->mclk); + + clk_div = mclk_rate / (get_pdm_clk(micfil, rate) * 2); + + return clk_div; +} + +/* The SRES is a self-negated bit which provides the CPU with the + * capability to initialize the PDM Interface module through the + * slave-bus interface. This bit always reads as zero, and this + * bit is only effective when MDIS is cleared + */ +static int fsl_micfil_reset(struct device *dev) +{ + struct fsl_micfil *micfil = dev_get_drvdata(dev); + int ret; + + ret = regmap_update_bits(micfil->regmap, + REG_MICFIL_CTRL1, + MICFIL_CTRL1_MDIS_MASK, + 0); + if (ret) { + dev_err(dev, "failed to clear MDIS bit %d\n", ret); + return ret; + } + + ret = regmap_update_bits(micfil->regmap, + REG_MICFIL_CTRL1, + MICFIL_CTRL1_SRES_MASK, + MICFIL_CTRL1_SRES); + if (ret) { + dev_err(dev, "failed to reset MICFIL: %d\n", ret); + return ret; + } + + return 0; +} + +static int fsl_micfil_set_mclk_rate(struct fsl_micfil *micfil, + unsigned int freq) +{ + struct device *dev = &micfil->pdev->dev; + int ret; + + clk_disable_unprepare(micfil->mclk); + + ret = clk_set_rate(micfil->mclk, freq * 1024); + if (ret) + dev_warn(dev, "failed to set rate (%u): %d\n", + freq * 1024, ret); + + clk_prepare_enable(micfil->mclk); + + return ret; +} + +static int fsl_micfil_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); + + if (!micfil) { + dev_err(dai->dev, + "micfil dai priv_data not set\n"); + return -EINVAL; + } + + return 0; +} + +static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); + struct device *dev = &micfil->pdev->dev; + int ret; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + ret = fsl_micfil_reset(dev); + if (ret) { + dev_err(dev, "failed to soft reset\n"); + return ret; + } + + /* DMA Interrupt Selection - DISEL bits + * 00 - DMA and IRQ disabled + * 01 - DMA req enabled + * 10 - IRQ enabled + * 11 - reserved + */ + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_DISEL_MASK, + (1 << MICFIL_CTRL1_DISEL_SHIFT)); + if (ret) { + dev_err(dev, "failed to update DISEL bits\n"); + return ret; + } + + /* Enable the module */ + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_PDMIEN_MASK, + MICFIL_CTRL1_PDMIEN); + if (ret) { + dev_err(dev, "failed to enable the module\n"); + return ret; + } + + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + /* Disable the module */ + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_PDMIEN_MASK, + 0); + if (ret) { + dev_err(dev, "failed to enable the module\n"); + return ret; + } + + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_DISEL_MASK, + (0 << MICFIL_CTRL1_DISEL_SHIFT)); + if (ret) { + dev_err(dev, "failed to update DISEL bits\n"); + return ret; + } + break; + default: + return -EINVAL; + } + return 0; +} + +static int fsl_set_clock_params(struct device *dev, unsigned int rate) +{ + struct fsl_micfil *micfil = dev_get_drvdata(dev); + int clk_div; + int ret = 0; + + ret = fsl_micfil_set_mclk_rate(micfil, rate); + if (ret < 0) + dev_err(dev, "failed to set mclk[%lu] to rate %u\n", + clk_get_rate(micfil->mclk), rate); + + /* set CICOSR */ + ret |= regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, + MICFIL_CTRL2_CICOSR_MASK, + MICFIL_CTRL2_OSR_DEFAULT); + if (ret) + dev_err(dev, "failed to set CICOSR in reg 0x%X\n", + REG_MICFIL_CTRL2); + + /* set CLK_DIV */ + clk_div = get_clk_div(micfil, rate); + if (clk_div < 0) + ret = -EINVAL; + + ret |= regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, + MICFIL_CTRL2_CLKDIV_MASK, clk_div); + if (ret) + dev_err(dev, "failed to set CLKDIV in reg 0x%X\n", + REG_MICFIL_CTRL2); + + return ret; +} + +static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); + unsigned int channels = params_channels(params); + unsigned int rate = params_rate(params); + struct device *dev = &micfil->pdev->dev; + int ret; + + /* 1. Disable the module */ + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_PDMIEN_MASK, 0); + if (ret) { + dev_err(dev, "failed to disable the module\n"); + return ret; + } + + /* enable channels */ + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, + 0xFF, ((1 << channels) - 1)); + if (ret) { + dev_err(dev, "failed to enable channels %d, reg 0x%X\n", ret, + REG_MICFIL_CTRL1); + return ret; + } + + ret = fsl_set_clock_params(dev, rate); + if (ret < 0) { + dev_err(dev, "Failed to set clock parameters [%d]\n", ret); + return ret; + } + + micfil->dma_params_rx.maxburst = channels * MICFIL_DMA_MAXBURST_RX; + + return 0; +} + +static int fsl_micfil_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, + unsigned int freq, int dir) +{ + struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); + struct device *dev = &micfil->pdev->dev; + + int ret; + + if (!freq) + return 0; + + ret = fsl_micfil_set_mclk_rate(micfil, freq); + if (ret < 0) + dev_err(dev, "failed to set mclk[%lu] to rate %u\n", + clk_get_rate(micfil->mclk), freq); + + return ret; +} + +static struct snd_soc_dai_ops fsl_micfil_dai_ops = { + .startup = fsl_micfil_startup, + .trigger = fsl_micfil_trigger, + .hw_params = fsl_micfil_hw_params, + .set_sysclk = fsl_micfil_set_dai_sysclk, +}; + +static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) +{ + struct fsl_micfil *micfil = dev_get_drvdata(cpu_dai->dev); + struct device *dev = cpu_dai->dev; + unsigned int val; + int ret; + int i; + + /* set qsel to medium */ + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, + MICFIL_CTRL2_QSEL_MASK, MICFIL_MEDIUM_QUALITY); + if (ret) { + dev_err(dev, "failed to set quality mode bits, reg 0x%X\n", + REG_MICFIL_CTRL2); + return ret; + } + + /* set default gain to max_gain */ + regmap_write(micfil->regmap, REG_MICFIL_OUT_CTRL, 0x77777777); + for (i = 0; i < 8; i++) + micfil->channel_gain[i] = 0xF; + + snd_soc_dai_init_dma_data(cpu_dai, NULL, + &micfil->dma_params_rx); + + /* FIFO Watermark Control - FIFOWMK*/ + val = MICFIL_FIFO_CTRL_FIFOWMK(micfil->soc->fifo_depth) - 1; + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_FIFO_CTRL, + MICFIL_FIFO_CTRL_FIFOWMK_MASK, + val); + if (ret) { + dev_err(dev, "failed to set FIFOWMK\n"); + return ret; + } + + snd_soc_dai_set_drvdata(cpu_dai, micfil); + + return 0; +} + +static struct snd_soc_dai_driver fsl_micfil_dai = { + .probe = fsl_micfil_dai_probe, + .capture = { + .stream_name = "CPU-Capture", + .channels_min = 1, + .channels_max = 8, + .rates = FSL_MICFIL_RATES, + .formats = FSL_MICFIL_FORMATS, + }, + .ops = &fsl_micfil_dai_ops, +}; + +static const struct snd_soc_component_driver fsl_micfil_component = { + .name = "fsl-micfil-dai", + .controls = fsl_micfil_snd_controls, + .num_controls = ARRAY_SIZE(fsl_micfil_snd_controls), + +}; + +/* REGMAP */ +static const struct reg_default fsl_micfil_reg_defaults[] = { + {REG_MICFIL_CTRL1, 0x00000000}, + {REG_MICFIL_CTRL2, 0x00000000}, + {REG_MICFIL_STAT, 0x00000000}, + {REG_MICFIL_FIFO_CTRL, 0x00000007}, + {REG_MICFIL_FIFO_STAT, 0x00000000}, + {REG_MICFIL_DATACH0, 0x00000000}, + {REG_MICFIL_DATACH1, 0x00000000}, + {REG_MICFIL_DATACH2, 0x00000000}, + {REG_MICFIL_DATACH3, 0x00000000}, + {REG_MICFIL_DATACH4, 0x00000000}, + {REG_MICFIL_DATACH5, 0x00000000}, + {REG_MICFIL_DATACH6, 0x00000000}, + {REG_MICFIL_DATACH7, 0x00000000}, + {REG_MICFIL_DC_CTRL, 0x00000000}, + {REG_MICFIL_OUT_CTRL, 0x00000000}, + {REG_MICFIL_OUT_STAT, 0x00000000}, + {REG_MICFIL_VAD0_CTRL1, 0x00000000}, + {REG_MICFIL_VAD0_CTRL2, 0x000A0000}, + {REG_MICFIL_VAD0_STAT, 0x00000000}, + {REG_MICFIL_VAD0_SCONFIG, 0x00000000}, + {REG_MICFIL_VAD0_NCONFIG, 0x80000000}, + {REG_MICFIL_VAD0_NDATA, 0x00000000}, + {REG_MICFIL_VAD0_ZCD, 0x00000004}, +}; + +static bool fsl_micfil_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case REG_MICFIL_CTRL1: + case REG_MICFIL_CTRL2: + case REG_MICFIL_STAT: + case REG_MICFIL_FIFO_CTRL: + case REG_MICFIL_FIFO_STAT: + case REG_MICFIL_DATACH0: + case REG_MICFIL_DATACH1: + case REG_MICFIL_DATACH2: + case REG_MICFIL_DATACH3: + case REG_MICFIL_DATACH4: + case REG_MICFIL_DATACH5: + case REG_MICFIL_DATACH6: + case REG_MICFIL_DATACH7: + case REG_MICFIL_DC_CTRL: + case REG_MICFIL_OUT_CTRL: + case REG_MICFIL_OUT_STAT: + case REG_MICFIL_VAD0_CTRL1: + case REG_MICFIL_VAD0_CTRL2: + case REG_MICFIL_VAD0_STAT: + case REG_MICFIL_VAD0_SCONFIG: + case REG_MICFIL_VAD0_NCONFIG: + case REG_MICFIL_VAD0_NDATA: + case REG_MICFIL_VAD0_ZCD: + return true; + default: + return false; + } +} + +static bool fsl_micfil_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case REG_MICFIL_CTRL1: + case REG_MICFIL_CTRL2: + case REG_MICFIL_STAT: /* Write 1 to Clear */ + case REG_MICFIL_FIFO_CTRL: + case REG_MICFIL_FIFO_STAT: /* Write 1 to Clear */ + case REG_MICFIL_DC_CTRL: + case REG_MICFIL_OUT_CTRL: + case REG_MICFIL_OUT_STAT: /* Write 1 to Clear */ + case REG_MICFIL_VAD0_CTRL1: + case REG_MICFIL_VAD0_CTRL2: + case REG_MICFIL_VAD0_STAT: /* Write 1 to Clear */ + case REG_MICFIL_VAD0_SCONFIG: + case REG_MICFIL_VAD0_NCONFIG: + case REG_MICFIL_VAD0_ZCD: + return true; + default: + return false; + } +} + +static bool fsl_micfil_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case REG_MICFIL_STAT: + case REG_MICFIL_DATACH0: + case REG_MICFIL_DATACH1: + case REG_MICFIL_DATACH2: + case REG_MICFIL_DATACH3: + case REG_MICFIL_DATACH4: + case REG_MICFIL_DATACH5: + case REG_MICFIL_DATACH6: + case REG_MICFIL_DATACH7: + case REG_MICFIL_VAD0_STAT: + case REG_MICFIL_VAD0_NDATA: + return true; + default: + return false; + } +} + +static const struct regmap_config fsl_micfil_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + + .max_register = REG_MICFIL_VAD0_ZCD, + .reg_defaults = fsl_micfil_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(fsl_micfil_reg_defaults), + .readable_reg = fsl_micfil_readable_reg, + .volatile_reg = fsl_micfil_volatile_reg, + .writeable_reg = fsl_micfil_writeable_reg, + .cache_type = REGCACHE_RBTREE, +}; + +/* END OF REGMAP */ + +static irqreturn_t micfil_isr(int irq, void *devid) +{ + struct fsl_micfil *micfil = (struct fsl_micfil *)devid; + struct platform_device *pdev = micfil->pdev; + u32 stat_reg; + u32 fifo_stat_reg; + u32 ctrl1_reg; + bool dma_enabled; + int i; + + regmap_read(micfil->regmap, REG_MICFIL_STAT, &stat_reg); + regmap_read(micfil->regmap, REG_MICFIL_CTRL1, &ctrl1_reg); + regmap_read(micfil->regmap, REG_MICFIL_FIFO_STAT, &fifo_stat_reg); + + dma_enabled = MICFIL_DMA_ENABLED(ctrl1_reg); + + /* Channel 0-7 Output Data Flags */ + for (i = 0; i < MICFIL_OUTPUT_CHANNELS; i++) { + if (stat_reg & MICFIL_STAT_CHXF_MASK(i)) + dev_dbg(&pdev->dev, + "Data available in Data Channel %d\n", i); + /* if DMA is not enabled, field must be written with 1 + * to clear + */ + if (!dma_enabled) + regmap_write_bits(micfil->regmap, + REG_MICFIL_STAT, + MICFIL_STAT_CHXF_MASK(i), + 1); + } + + for (i = 0; i < MICFIL_FIFO_NUM; i++) { + if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_OVER_MASK(i)) + dev_dbg(&pdev->dev, + "FIFO Overflow Exception flag for channel %d\n", + i); + + if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_UNDER_MASK(i)) + dev_dbg(&pdev->dev, + "FIFO Underflow Exception flag for channel %d\n", + i); + } + + return IRQ_HANDLED; +} + +static irqreturn_t micfil_err_isr(int irq, void *devid) +{ + struct fsl_micfil *micfil = (struct fsl_micfil *)devid; + struct platform_device *pdev = micfil->pdev; + u32 stat_reg; + + regmap_read(micfil->regmap, REG_MICFIL_STAT, &stat_reg); + + if (stat_reg & MICFIL_STAT_BSY_FIL_MASK) + dev_dbg(&pdev->dev, "isr: Decimation Filter is running\n"); + + if (stat_reg & MICFIL_STAT_FIR_RDY_MASK) + dev_dbg(&pdev->dev, "isr: FIR Filter Data ready\n"); + + if (stat_reg & MICFIL_STAT_LOWFREQF_MASK) { + dev_dbg(&pdev->dev, "isr: ipg_clk_app is too low\n"); + regmap_write_bits(micfil->regmap, REG_MICFIL_STAT, + MICFIL_STAT_LOWFREQF_MASK, 1); + } + + return IRQ_HANDLED; +} + +static int fsl_micfil_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + const struct of_device_id *of_id; + struct fsl_micfil *micfil; + struct resource *res; + void __iomem *regs; + int ret, i; + unsigned long irqflag = 0; + + micfil = devm_kzalloc(&pdev->dev, sizeof(*micfil), GFP_KERNEL); + if (!micfil) + return -ENOMEM; + + micfil->pdev = pdev; + strncpy(micfil->name, np->name, sizeof(micfil->name) - 1); + + of_id = of_match_device(fsl_micfil_dt_ids, &pdev->dev); + if (!of_id || !of_id->data) + return -EINVAL; + + micfil->soc = of_id->data; + + /* ipg_clk is used to control the registers + * ipg_clk_app is used to operate the filter + */ + micfil->mclk = devm_clk_get(&pdev->dev, "ipg_clk_app"); + if (IS_ERR(micfil->mclk)) { + dev_err(&pdev->dev, "failed to get core clock: %ld\n", + PTR_ERR(micfil->mclk)); + return PTR_ERR(micfil->mclk); + } + + /* init regmap */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + micfil->regmap = devm_regmap_init_mmio_clk(&pdev->dev, + "ipg_clk", + regs, + &fsl_micfil_regmap_config); + if (IS_ERR(micfil->regmap)) { + dev_err(&pdev->dev, "failed to init MICFIL regmap: %ld\n", + PTR_ERR(micfil->regmap)); + return PTR_ERR(micfil->regmap); + } + + /* dataline mask for RX */ + ret = of_property_read_u32_index(np, + "fsl,dataline", + 0, + &micfil->dataline); + if (ret) + micfil->dataline = 1; + + if (micfil->dataline & ~micfil->soc->dataline) { + dev_err(&pdev->dev, "dataline setting error, Mask is 0x%X\n", + micfil->soc->dataline); + return -EINVAL; + } + + /* get IRQs */ + for (i = 0; i < MICFIL_IRQ_LINES; i++) { + micfil->irq[i] = platform_get_irq(pdev, i); + dev_err(&pdev->dev, "GET IRQ: %d\n", micfil->irq[i]); + if (micfil->irq[i] < 0) { + dev_err(&pdev->dev, "no irq for node %s\n", pdev->name); + return micfil->irq[i]; + } + } + + if (of_property_read_bool(np, "fsl,shared-interrupt")) + irqflag = IRQF_SHARED; + + /* Digital Microphone interface interrupt - IRQ 109 */ + ret = devm_request_irq(&pdev->dev, micfil->irq[0], + micfil_isr, irqflag, + micfil->name, micfil); + if (ret) { + dev_err(&pdev->dev, "failed to claim mic interface irq %u\n", + micfil->irq[0]); + return ret; + } + + /* Digital Microphone interface error interrupt - IRQ 110 */ + ret = devm_request_irq(&pdev->dev, micfil->irq[1], + micfil_err_isr, irqflag, + micfil->name, micfil); + if (ret) { + dev_err(&pdev->dev, "failed to claim mic interface error irq %u\n", + micfil->irq[1]); + return ret; + } + + micfil->dma_params_rx.chan_name = "rx"; + micfil->dma_params_rx.addr = res->start + REG_MICFIL_DATACH0; + micfil->dma_params_rx.maxburst = MICFIL_DMA_MAXBURST_RX; + + + platform_set_drvdata(pdev, micfil); + + pm_runtime_enable(&pdev->dev); + + ret = devm_snd_soc_register_component(&pdev->dev, &fsl_micfil_component, + &fsl_micfil_dai, 1); + if (ret) { + dev_err(&pdev->dev, "failed to register component %s\n", + fsl_micfil_component.name); + return ret; + } + + ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0); + if (ret) + dev_err(&pdev->dev, "failed to pcm register\n"); + + return ret; +} + +#ifdef CONFIG_PM +static int __maybe_unused fsl_micfil_runtime_suspend(struct device *dev) +{ + struct fsl_micfil *micfil = dev_get_drvdata(dev); + + regcache_cache_only(micfil->regmap, true); + + clk_disable_unprepare(micfil->mclk); + + return 0; +} + +static int __maybe_unused fsl_micfil_runtime_resume(struct device *dev) +{ + struct fsl_micfil *micfil = dev_get_drvdata(dev); + int ret; + + ret = clk_prepare_enable(micfil->mclk); + if (ret < 0) + return ret; + + regcache_cache_only(micfil->regmap, false); + regcache_mark_dirty(micfil->regmap); + regcache_sync(micfil->regmap); + + return 0; +} +#endif /* CONFIG_PM*/ + +#ifdef CONFIG_PM_SLEEP +static int __maybe_unused fsl_micfil_suspend(struct device *dev) +{ + pm_runtime_force_suspend(dev); + + return 0; +} + +static int __maybe_unused fsl_micfil_resume(struct device *dev) +{ + pm_runtime_force_resume(dev); + + return 0; +} +#endif /* CONFIG_PM_SLEEP */ + +static const struct dev_pm_ops fsl_micfil_pm_ops = { + SET_RUNTIME_PM_OPS(fsl_micfil_runtime_suspend, + fsl_micfil_runtime_resume, + NULL) + SET_SYSTEM_SLEEP_PM_OPS(fsl_micfil_suspend, + fsl_micfil_resume) +}; + +static struct platform_driver fsl_micfil_driver = { + .probe = fsl_micfil_probe, + .driver = { + .name = "fsl-micfil-dai", + .pm = &fsl_micfil_pm_ops, + .of_match_table = fsl_micfil_dt_ids, + }, +}; +module_platform_driver(fsl_micfil_driver); + +MODULE_AUTHOR("Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com>"); +MODULE_DESCRIPTION("NXP PDM Microphone Interface (MICFIL) driver"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/fsl/fsl_micfil.h b/sound/soc/fsl/fsl_micfil.h new file mode 100644 index 000000000000..bac825c3135a --- /dev/null +++ b/sound/soc/fsl/fsl_micfil.h @@ -0,0 +1,283 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * PDM Microphone Interface for the NXP i.MX SoC + * Copyright 2018 NXP + */ + +#ifndef _FSL_MICFIL_H +#define _FSL_MICFIL_H + +/* MICFIL Register Map */ +#define REG_MICFIL_CTRL1 0x00 +#define REG_MICFIL_CTRL2 0x04 +#define REG_MICFIL_STAT 0x08 +#define REG_MICFIL_FIFO_CTRL 0x10 +#define REG_MICFIL_FIFO_STAT 0x14 +#define REG_MICFIL_DATACH0 0x24 +#define REG_MICFIL_DATACH1 0x28 +#define REG_MICFIL_DATACH2 0x2C +#define REG_MICFIL_DATACH3 0x30 +#define REG_MICFIL_DATACH4 0x34 +#define REG_MICFIL_DATACH5 0x38 +#define REG_MICFIL_DATACH6 0x3C +#define REG_MICFIL_DATACH7 0x40 +#define REG_MICFIL_DC_CTRL 0x64 +#define REG_MICFIL_OUT_CTRL 0x74 +#define REG_MICFIL_OUT_STAT 0x7C +#define REG_MICFIL_VAD0_CTRL1 0x90 +#define REG_MICFIL_VAD0_CTRL2 0x94 +#define REG_MICFIL_VAD0_STAT 0x98 +#define REG_MICFIL_VAD0_SCONFIG 0x9C +#define REG_MICFIL_VAD0_NCONFIG 0xA0 +#define REG_MICFIL_VAD0_NDATA 0xA4 +#define REG_MICFIL_VAD0_ZCD 0xA8 + +/* MICFIL Control Register 1 -- REG_MICFILL_CTRL1 0x00 */ +#define MICFIL_CTRL1_MDIS_SHIFT 31 +#define MICFIL_CTRL1_MDIS_MASK BIT(MICFIL_CTRL1_MDIS_SHIFT) +#define MICFIL_CTRL1_MDIS BIT(MICFIL_CTRL1_MDIS_SHIFT) +#define MICFIL_CTRL1_DOZEN_SHIFT 30 +#define MICFIL_CTRL1_DOZEN_MASK BIT(MICFIL_CTRL1_DOZEN_SHIFT) +#define MICFIL_CTRL1_DOZEN BIT(MICFIL_CTRL1_DOZEN_SHIFT) +#define MICFIL_CTRL1_PDMIEN_SHIFT 29 +#define MICFIL_CTRL1_PDMIEN_MASK BIT(MICFIL_CTRL1_PDMIEN_SHIFT) +#define MICFIL_CTRL1_PDMIEN BIT(MICFIL_CTRL1_PDMIEN_SHIFT) +#define MICFIL_CTRL1_DBG_SHIFT 28 +#define MICFIL_CTRL1_DBG_MASK BIT(MICFIL_CTRL1_DBG_SHIFT) +#define MICFIL_CTRL1_DBG BIT(MICFIL_CTRL1_DBG_SHIFT) +#define MICFIL_CTRL1_SRES_SHIFT 27 +#define MICFIL_CTRL1_SRES_MASK BIT(MICFIL_CTRL1_SRES_SHIFT) +#define MICFIL_CTRL1_SRES BIT(MICFIL_CTRL1_SRES_SHIFT) +#define MICFIL_CTRL1_DBGE_SHIFT 26 +#define MICFIL_CTRL1_DBGE_MASK BIT(MICFIL_CTRL1_DBGE_SHIFT) +#define MICFIL_CTRL1_DBGE BIT(MICFIL_CTRL1_DBGE_SHIFT) +#define MICFIL_CTRL1_DISEL_SHIFT 24 +#define MICFIL_CTRL1_DISEL_WIDTH 2 +#define MICFIL_CTRL1_DISEL_MASK ((BIT(MICFIL_CTRL1_DISEL_WIDTH) - 1) \ + << MICFIL_CTRL1_DISEL_SHIFT) +#define MICFIL_CTRL1_DISEL(v) (((v) << MICFIL_CTRL1_DISEL_SHIFT) \ + & MICFIL_CTRL1_DISEL_MASK) +#define MICFIL_CTRL1_ERREN_SHIFT 23 +#define MICFIL_CTRL1_ERREN_MASK BIT(MICFIL_CTRL1_ERREN_SHIFT) +#define MICFIL_CTRL1_ERREN BIT(MICFIL_CTRL1_ERREN_SHIFT) +#define MICFIL_CTRL1_CHEN_SHIFT 0 +#define MICFIL_CTRL1_CHEN_WIDTH 8 +#define MICFIL_CTRL1_CHEN_MASK(x) (BIT(x) << MICFIL_CTRL1_CHEN_SHIFT) +#define MICFIL_CTRL1_CHEN(x) (MICFIL_CTRL1_CHEN_MASK(x)) + +/* MICFIL Control Register 2 -- REG_MICFILL_CTRL2 0x04 */ +#define MICFIL_CTRL2_QSEL_SHIFT 25 +#define MICFIL_CTRL2_QSEL_WIDTH 3 +#define MICFIL_CTRL2_QSEL_MASK ((BIT(MICFIL_CTRL2_QSEL_WIDTH) - 1) \ + << MICFIL_CTRL2_QSEL_SHIFT) +#define MICFIL_HIGH_QUALITY BIT(MICFIL_CTRL2_QSEL_SHIFT) +#define MICFIL_MEDIUM_QUALITY (0 << MICFIL_CTRL2_QSEL_SHIFT) +#define MICFIL_LOW_QUALITY (7 << MICFIL_CTRL2_QSEL_SHIFT) +#define MICFIL_VLOW0_QUALITY (6 << MICFIL_CTRL2_QSEL_SHIFT) +#define MICFIL_VLOW1_QUALITY (5 << MICFIL_CTRL2_QSEL_SHIFT) +#define MICFIL_VLOW2_QUALITY (4 << MICFIL_CTRL2_QSEL_SHIFT) + +#define MICFIL_CTRL2_CICOSR_SHIFT 16 +#define MICFIL_CTRL2_CICOSR_WIDTH 4 +#define MICFIL_CTRL2_CICOSR_MASK ((BIT(MICFIL_CTRL2_CICOSR_WIDTH) - 1) \ + << MICFIL_CTRL2_CICOSR_SHIFT) +#define MICFIL_CTRL2_CICOSR(v) (((v) << MICFIL_CTRL2_CICOSR_SHIFT) \ + & MICFIL_CTRL2_CICOSR_MASK) +#define MICFIL_CTRL2_CLKDIV_SHIFT 0 +#define MICFIL_CTRL2_CLKDIV_WIDTH 8 +#define MICFIL_CTRL2_CLKDIV_MASK ((BIT(MICFIL_CTRL2_CLKDIV_WIDTH) - 1) \ + << MICFIL_CTRL2_CLKDIV_SHIFT) +#define MICFIL_CTRL2_CLKDIV(v) (((v) << MICFIL_CTRL2_CLKDIV_SHIFT) \ + & MICFIL_CTRL2_CLKDIV_MASK) + +/* MICFIL Status Register -- REG_MICFIL_STAT 0x08 */ +#define MICFIL_STAT_BSY_FIL_SHIFT 31 +#define MICFIL_STAT_BSY_FIL_MASK BIT(MICFIL_STAT_BSY_FIL_SHIFT) +#define MICFIL_STAT_BSY_FIL BIT(MICFIL_STAT_BSY_FIL_SHIFT) +#define MICFIL_STAT_FIR_RDY_SHIFT 30 +#define MICFIL_STAT_FIR_RDY_MASK BIT(MICFIL_STAT_FIR_RDY_SHIFT) +#define MICFIL_STAT_FIR_RDY BIT(MICFIL_STAT_FIR_RDY_SHIFT) +#define MICFIL_STAT_LOWFREQF_SHIFT 29 +#define MICFIL_STAT_LOWFREQF_MASK BIT(MICFIL_STAT_LOWFREQF_SHIFT) +#define MICFIL_STAT_LOWFREQF BIT(MICFIL_STAT_LOWFREQF_SHIFT) +#define MICFIL_STAT_CHXF_SHIFT(v) (v) +#define MICFIL_STAT_CHXF_MASK(v) BIT(MICFIL_STAT_CHXF_SHIFT(v)) +#define MICFIL_STAT_CHXF(v) BIT(MICFIL_STAT_CHXF_SHIFT(v)) + +/* MICFIL FIFO Control Register -- REG_MICFIL_FIFO_CTRL 0x10 */ +#define MICFIL_FIFO_CTRL_FIFOWMK_SHIFT 0 +#define MICFIL_FIFO_CTRL_FIFOWMK_WIDTH 3 +#define MICFIL_FIFO_CTRL_FIFOWMK_MASK ((BIT(MICFIL_FIFO_CTRL_FIFOWMK_WIDTH) - 1) \ + << MICFIL_FIFO_CTRL_FIFOWMK_SHIFT) +#define MICFIL_FIFO_CTRL_FIFOWMK(v) (((v) << MICFIL_FIFO_CTRL_FIFOWMK_SHIFT) \ + & MICFIL_FIFO_CTRL_FIFOWMK_MASK) + +/* MICFIL FIFO Status Register -- REG_MICFIL_FIFO_STAT 0x14 */ +#define MICFIL_FIFO_STAT_FIFOX_OVER_SHIFT(v) (v) +#define MICFIL_FIFO_STAT_FIFOX_OVER_MASK(v) BIT(MICFIL_FIFO_STAT_FIFOX_OVER_SHIFT(v)) +#define MICFIL_FIFO_STAT_FIFOX_UNDER_SHIFT(v) ((v) + 8) +#define MICFIL_FIFO_STAT_FIFOX_UNDER_MASK(v) BIT(MICFIL_FIFO_STAT_FIFOX_UNDER_SHIFT(v)) + +/* MICFIL HWVAD0 Control 1 Register -- REG_MICFIL_VAD0_CTRL1*/ +#define MICFIL_VAD0_CTRL1_CHSEL_SHIFT 24 +#define MICFIL_VAD0_CTRL1_CHSEL_WIDTH 3 +#define MICFIL_VAD0_CTRL1_CHSEL_MASK ((BIT(MICFIL_VAD0_CTRL1_CHSEL_WIDTH) - 1) \ + << MICFIL_VAD0_CTRL1_CHSEL_SHIFT) +#define MICFIL_VAD0_CTRL1_CHSEL(v) (((v) << MICFIL_VAD0_CTRL1_CHSEL_SHIFT) \ + & MICFIL_VAD0_CTRL1_CHSEL_MASK) +#define MICFIL_VAD0_CTRL1_CICOSR_SHIFT 16 +#define MICFIL_VAD0_CTRL1_CICOSR_WIDTH 4 +#define MICFIL_VAD0_CTRL1_CICOSR_MASK ((BIT(MICFIL_VAD0_CTRL1_CICOSR_WIDTH) - 1) \ + << MICFIL_VAD0_CTRL1_CICOSR_SHIFT) +#define MICFIL_VAD0_CTRL1_CICOSR(v) (((v) << MICFIL_VAD0_CTRL1_CICOSR_SHIFT) \ + & MICFIL_VAD0_CTRL1_CICOSR_MASK) +#define MICFIL_VAD0_CTRL1_INITT_SHIFT 8 +#define MICFIL_VAD0_CTRL1_INITT_WIDTH 5 +#define MICFIL_VAD0_CTRL1_INITT_MASK ((BIT(MICFIL_VAD0_CTRL1_INITT_WIDTH) - 1) \ + << MICFIL_VAD0_CTRL1_INITT_SHIFT) +#define MICFIL_VAD0_CTRL1_INITT(v) (((v) << MICFIL_VAD0_CTRL1_INITT_SHIFT) \ + & MICFIL_VAD0_CTRL1_INITT_MASK) +#define MICFIL_VAD0_CTRL1_ST10_SHIFT 4 +#define MICFIL_VAD0_CTRL1_ST10_MASK BIT(MICFIL_VAD0_CTRL1_ST10_SHIFT) +#define MICFIL_VAD0_CTRL1_ST10 BIT(MICFIL_VAD0_CTRL1_ST10_SHIFT) +#define MICFIL_VAD0_CTRL1_ERIE_SHIFT 3 +#define MICFIL_VAD0_CTRL1_ERIE_MASK BIT(MICFIL_VAD0_CTRL1_ERIE_SHIFT) +#define MICFIL_VAD0_CTRL1_ERIE BIT(MICFIL_VAD0_CTRL1_ERIE_SHIFT) +#define MICFIL_VAD0_CTRL1_IE_SHIFT 2 +#define MICFIL_VAD0_CTRL1_IE_MASK BIT(MICFIL_VAD0_CTRL1_IE_SHIFT) +#define MICFIL_VAD0_CTRL1_IE BIT(MICFIL_VAD0_CTRL1_IE_SHIFT) +#define MICFIL_VAD0_CTRL1_RST_SHIFT 1 +#define MICFIL_VAD0_CTRL1_RST_MASK BIT(MICFIL_VAD0_CTRL1_RST_SHIFT) +#define MICFIL_VAD0_CTRL1_RST BIT(MICFIL_VAD0_CTRL1_RST_SHIFT) +#define MICFIL_VAD0_CTRL1_EN_SHIFT 0 +#define MICFIL_VAD0_CTRL1_EN_MASK BIT(MICFIL_VAD0_CTRL1_EN_SHIFT) +#define MICFIL_VAD0_CTRL1_EN BIT(MICFIL_VAD0_CTRL1_EN_SHIFT) + +/* MICFIL HWVAD0 Control 2 Register -- REG_MICFIL_VAD0_CTRL2*/ +#define MICFIL_VAD0_CTRL2_FRENDIS_SHIFT 31 +#define MICFIL_VAD0_CTRL2_FRENDIS_MASK BIT(MICFIL_VAD0_CTRL2_FRENDIS_SHIFT) +#define MICFIL_VAD0_CTRL2_FRENDIS BIT(MICFIL_VAD0_CTRL2_FRENDIS_SHIFT) +#define MICFIL_VAD0_CTRL2_PREFEN_SHIFT 30 +#define MICFIL_VAD0_CTRL2_PREFEN_MASK BIT(MICFIL_VAD0_CTRL2_PREFEN_SHIFT) +#define MICFIL_VAD0_CTRL2_PREFEN BIT(MICFIL_VAD0_CTRL2_PREFEN_SHIFT) +#define MICFIL_VAD0_CTRL2_FOUTDIS_SHIFT 28 +#define MICFIL_VAD0_CTRL2_FOUTDIS_MASK BIT(MICFIL_VAD0_CTRL2_FOUTDIS_SHIFT) +#define MICFIL_VAD0_CTRL2_FOUTDIS BIT(MICFIL_VAD0_CTRL2_FOUTDIS_SHIFT) +#define MICFIL_VAD0_CTRL2_FRAMET_SHIFT 16 +#define MICFIL_VAD0_CTRL2_FRAMET_WIDTH 6 +#define MICFIL_VAD0_CTRL2_FRAMET_MASK ((BIT(MICFIL_VAD0_CTRL2_FRAMET_WIDTH) - 1) \ + << MICFIL_VAD0_CTRL2_FRAMET_SHIFT) +#define MICFIL_VAD0_CTRL2_FRAMET(v) (((v) << MICFIL_VAD0_CTRL2_FRAMET_SHIFT) \ + & MICFIL_VAD0_CTRL2_FRAMET_MASK) +#define MICFIL_VAD0_CTRL2_INPGAIN_SHIFT 8 +#define MICFIL_VAD0_CTRL2_INPGAIN_WIDTH 4 +#define MICFIL_VAD0_CTRL2_INPGAIN_MASK ((BIT(MICFIL_VAD0_CTRL2_INPGAIN_WIDTH) - 1) \ + << MICFIL_VAD0_CTRL2_INPGAIN_SHIFT) +#define MICFIL_VAD0_CTRL2_INPGAIN(v) (((v) << MICFIL_VAD0_CTRL2_INPGAIN_SHIFT) \ + & MICFIL_VAD0_CTRL2_INPGAIN_MASK) +#define MICFIL_VAD0_CTRL2_HPF_SHIFT 0 +#define MICFIL_VAD0_CTRL2_HPF_WIDTH 2 +#define MICFIL_VAD0_CTRL2_HPF_MASK ((BIT(MICFIL_VAD0_CTRL2_HPF_WIDTH) - 1) \ + << MICFIL_VAD0_CTRL2_HPF_SHIFT) +#define MICFIL_VAD0_CTRL2_HPF(v) (((v) << MICFIL_VAD0_CTRL2_HPF_SHIFT) \ + & MICFIL_VAD0_CTRL2_HPF_MASK) + +/* MICFIL HWVAD0 Signal CONFIG Register -- REG_MICFIL_VAD0_SCONFIG */ +#define MICFIL_VAD0_SCONFIG_SFILEN_SHIFT 31 +#define MICFIL_VAD0_SCONFIG_SFILEN_MASK BIT(MICFIL_VAD0_SCONFIG_SFILEN_SHIFT) +#define MICFIL_VAD0_SCONFIG_SFILEN BIT(MICFIL_VAD0_SCONFIG_SFILEN_SHIFT) +#define MICFIL_VAD0_SCONFIG_SMAXEN_SHIFT 30 +#define MICFIL_VAD0_SCONFIG_SMAXEN_MASK BIT(MICFIL_VAD0_SCONFIG_SMAXEN_SHIFT) +#define MICFIL_VAD0_SCONFIG_SMAXEN BIT(MICFIL_VAD0_SCONFIG_SMAXEN_SHIFT) +#define MICFIL_VAD0_SCONFIG_SGAIN_SHIFT 0 +#define MICFIL_VAD0_SCONFIG_SGAIN_WIDTH 4 +#define MICFIL_VAD0_SCONFIG_SGAIN_MASK ((BIT(MICFIL_VAD0_SCONFIG_SGAIN_WIDTH) - 1) \ + << MICFIL_VAD0_SCONFIG_SGAIN_SHIFT) +#define MICFIL_VAD0_SCONFIG_SGAIN(v) (((v) << MICFIL_VAD0_SCONFIG_SGAIN_SHIFT) \ + & MICFIL_VAD0_SCONFIG_SGAIN_MASK) + +/* MICFIL HWVAD0 Noise CONFIG Register -- REG_MICFIL_VAD0_NCONFIG */ +#define MICFIL_VAD0_NCONFIG_NFILAUT_SHIFT 31 +#define MICFIL_VAD0_NCONFIG_NFILAUT_MASK BIT(MICFIL_VAD0_NCONFIG_NFILAUT_SHIFT) +#define MICFIL_VAD0_NCONFIG_NFILAUT BIT(MICFIL_VAD0_NCONFIG_NFILAUT_SHIFT) +#define MICFIL_VAD0_NCONFIG_NMINEN_SHIFT 30 +#define MICFIL_VAD0_NCONFIG_NMINEN_MASK BIT(MICFIL_VAD0_NCONFIG_NMINEN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NMINEN BIT(MICFIL_VAD0_NCONFIG_NMINEN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NDECEN_SHIFT 29 +#define MICFIL_VAD0_NCONFIG_NDECEN_MASK BIT(MICFIL_VAD0_NCONFIG_NDECEN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NDECEN BIT(MICFIL_VAD0_NCONFIG_NDECEN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NOREN_SHIFT 28 +#define MICFIL_VAD0_NCONFIG_NOREN BIT(MICFIL_VAD0_NCONFIG_NOREN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT 8 +#define MICFIL_VAD0_NCONFIG_NFILADJ_WIDTH 5 +#define MICFIL_VAD0_NCONFIG_NFILADJ_MASK ((BIT(MICFIL_VAD0_NCONFIG_NFILADJ_WIDTH) - 1) \ + << MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT) +#define MICFIL_VAD0_NCONFIG_NFILADJ(v) (((v) << MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT) \ + & MICFIL_VAD0_NCONFIG_NFILADJ_MASK) +#define MICFIL_VAD0_NCONFIG_NGAIN_SHIFT 0 +#define MICFIL_VAD0_NCONFIG_NGAIN_WIDTH 4 +#define MICFIL_VAD0_NCONFIG_NGAIN_MASK ((BIT(MICFIL_VAD0_NCONFIG_NGAIN_WIDTH) - 1) \ + << MICFIL_VAD0_NCONFIG_NGAIN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NGAIN(v) (((v) << MICFIL_VAD0_NCONFIG_NGAIN_SHIFT) \ + & MICFIL_VAD0_NCONFIG_NGAIN_MASK) + +/* MICFIL HWVAD0 Zero-Crossing Detector - REG_MICFIL_VAD0_ZCD */ +#define MICFIL_VAD0_ZCD_ZCDTH_SHIFT 16 +#define MICFIL_VAD0_ZCD_ZCDTH_WIDTH 10 +#define MICFIL_VAD0_ZCD_ZCDTH_MASK ((BIT(MICFIL_VAD0_ZCD_ZCDTH_WIDTH) - 1) \ + << MICFIL_VAD0_ZCD_ZCDTH_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDTH(v) (((v) << MICFIL_VAD0_ZCD_ZCDTH_SHIFT)\ + & MICFIL_VAD0_ZCD_ZCDTH_MASK) +#define MICFIL_VAD0_ZCD_ZCDADJ_SHIFT 8 +#define MICFIL_VAD0_ZCD_ZCDADJ_WIDTH 4 +#define MICFIL_VAD0_ZCD_ZCDADJ_MASK ((BIT(MICFIL_VAD0_ZCD_ZCDADJ_WIDTH) - 1)\ + << MICFIL_VAD0_ZCD_ZCDADJ_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDADJ(v) (((v) << MICFIL_VAD0_ZCD_ZCDADJ_SHIFT)\ + & MICFIL_VAD0_ZCD_ZCDADJ_MASK) +#define MICFIL_VAD0_ZCD_ZCDAND_SHIFT 4 +#define MICFIL_VAD0_ZCD_ZCDAND_MASK BIT(MICFIL_VAD0_ZCD_ZCDAND_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDAND BIT(MICFIL_VAD0_ZCD_ZCDAND_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDAUT_SHIFT 2 +#define MICFIL_VAD0_ZCD_ZCDAUT_MASK BIT(MICFIL_VAD0_ZCD_ZCDAUT_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDAUT BIT(MICFIL_VAD0_ZCD_ZCDAUT_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDEN_SHIFT 0 +#define MICFIL_VAD0_ZCD_ZCDEN_MASK BIT(MICFIL_VAD0_ZCD_ZCDEN_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDEN BIT(MICFIL_VAD0_ZCD_ZCDEN_SHIFT) + +/* MICFIL HWVAD0 Status Register - REG_MICFIL_VAD0_STAT */ +#define MICFIL_VAD0_STAT_INITF_SHIFT 31 +#define MICFIL_VAD0_STAT_INITF_MASK BIT(MICFIL_VAD0_STAT_INITF_SHIFT) +#define MICFIL_VAD0_STAT_INITF BIT(MICFIL_VAD0_STAT_INITF_SHIFT) +#define MICFIL_VAD0_STAT_INSATF_SHIFT 16 +#define MICFIL_VAD0_STAT_INSATF_MASK BIT(MICFIL_VAD0_STAT_INSATF_SHIFT) +#define MICFIL_VAD0_STAT_INSATF BIT(MICFIL_VAD0_STAT_INSATF_SHIFT) +#define MICFIL_VAD0_STAT_EF_SHIFT 15 +#define MICFIL_VAD0_STAT_EF_MASK BIT(MICFIL_VAD0_STAT_EF_SHIFT) +#define MICFIL_VAD0_STAT_EF BIT(MICFIL_VAD0_STAT_EF_SHIFT) +#define MICFIL_VAD0_STAT_IF_SHIFT 0 +#define MICFIL_VAD0_STAT_IF_MASK BIT(MICFIL_VAD0_STAT_IF_SHIFT) +#define MICFIL_VAD0_STAT_IF BIT(MICFIL_VAD0_STAT_IF_SHIFT) + +/* MICFIL Output Control Register */ +#define MICFIL_OUTGAIN_CHX_SHIFT(v) (4 * (v)) + +/* Constants */ +#define MICFIL_DMA_IRQ_DISABLED(v) ((v) & MICFIL_CTRL1_DISEL_MASK) +#define MICFIL_DMA_ENABLED(v) ((0x1 << MICFIL_CTRL1_DISEL_SHIFT) \ + == ((v) & MICFIL_CTRL1_DISEL_MASK)) +#define MICFIL_IRQ_ENABLED(v) ((0x2 << MICFIL_CTRL1_DISEL_SHIFT) \ + == ((v) & MICFIL_CTRL1_DISEL_MASK)) +#define MICFIL_OUTPUT_CHANNELS 8 +#define MICFIL_FIFO_NUM 8 + +#define FIFO_PTRWID 3 +#define FIFO_LEN BIT(FIFO_PTRWID) + +#define MICFIL_IRQ_LINES 2 +#define MICFIL_MAX_RETRY 25 +#define MICFIL_SLEEP_MIN 90000 /* in us */ +#define MICFIL_SLEEP_MAX 100000 /* in us */ +#define MICFIL_DMA_MAXBURST_RX 6 +#define MICFIL_CTRL2_OSR_DEFAULT (0 << MICFIL_CTRL2_CICOSR_SHIFT) + +#endif /* _FSL_MICFIL_H */ -- 2.20.1 ^ permalink raw reply related [flat|nested] 5+ messages in thread
end of thread, other threads:[~2019-01-07 18:57 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2019-01-04 9:17 [PATCH v2 0/2] Add MICFIL DAI support Cosmin Samoila 2019-01-04 9:17 ` [PATCH v2 1/2] ASoC: micfil: Add bindings for MICFIL DAI Cosmin Samoila 2019-01-07 18:57 ` Applied "ASoC: micfil: Add bindings for MICFIL DAI" to the asoc tree Mark Brown 2019-01-04 9:17 ` [PATCH v2 2/2] ASoC: Add MICFIL SoC Digital Audio Interface driver Cosmin Samoila 2019-01-07 18:57 ` Applied "ASoC: Add MICFIL SoC Digital Audio Interface driver." to the asoc tree Mark Brown
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