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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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be1df61cf0
This patch implements Audio Mixer CPU DAI driver for NXP iMX8 SOCs. The Audio Mixer is a on-chip functional module that allows mixing of two audio streams into a single audio stream. Audio Mixer datasheet is available here: https://www.nxp.com/docs/en/reference-manual/IMX8DQXPRM.pdf Signed-off-by: Viorel Suman <viorel.suman@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org>
103 lines
4.1 KiB
C
103 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* NXP AUDMIX ALSA SoC Digital Audio Interface (DAI) driver
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*
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* Copyright 2017 NXP
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*/
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#ifndef __FSL_AUDMIX_H
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#define __FSL_AUDMIX_H
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#define FSL_AUDMIX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
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SNDRV_PCM_FMTBIT_S24_LE |\
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SNDRV_PCM_FMTBIT_S32_LE)
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/* AUDMIX Registers */
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#define FSL_AUDMIX_CTR 0x200 /* Control */
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#define FSL_AUDMIX_STR 0x204 /* Status */
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#define FSL_AUDMIX_ATCR0 0x208 /* Attenuation Control */
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#define FSL_AUDMIX_ATIVAL0 0x20c /* Attenuation Initial Value */
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#define FSL_AUDMIX_ATSTPUP0 0x210 /* Attenuation step up factor */
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#define FSL_AUDMIX_ATSTPDN0 0x214 /* Attenuation step down factor */
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#define FSL_AUDMIX_ATSTPTGT0 0x218 /* Attenuation step target */
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#define FSL_AUDMIX_ATTNVAL0 0x21c /* Attenuation Value */
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#define FSL_AUDMIX_ATSTP0 0x220 /* Attenuation step number */
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#define FSL_AUDMIX_ATCR1 0x228 /* Attenuation Control */
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#define FSL_AUDMIX_ATIVAL1 0x22c /* Attenuation Initial Value */
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#define FSL_AUDMIX_ATSTPUP1 0x230 /* Attenuation step up factor */
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#define FSL_AUDMIX_ATSTPDN1 0x234 /* Attenuation step down factor */
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#define FSL_AUDMIX_ATSTPTGT1 0x238 /* Attenuation step target */
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#define FSL_AUDMIX_ATTNVAL1 0x23c /* Attenuation Value */
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#define FSL_AUDMIX_ATSTP1 0x240 /* Attenuation step number */
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/* AUDMIX Control Register */
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#define FSL_AUDMIX_CTR_MIXCLK_SHIFT 0
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#define FSL_AUDMIX_CTR_MIXCLK_MASK BIT(FSL_AUDMIX_CTR_MIXCLK_SHIFT)
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#define FSL_AUDMIX_CTR_MIXCLK(i) ((i) << FSL_AUDMIX_CTR_MIXCLK_SHIFT)
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#define FSL_AUDMIX_CTR_OUTSRC_SHIFT 1
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#define FSL_AUDMIX_CTR_OUTSRC_MASK (0x3 << FSL_AUDMIX_CTR_OUTSRC_SHIFT)
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#define FSL_AUDMIX_CTR_OUTSRC(i) (((i) << FSL_AUDMIX_CTR_OUTSRC_SHIFT)\
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& FSL_AUDMIX_CTR_OUTSRC_MASK)
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#define FSL_AUDMIX_CTR_OUTWIDTH_SHIFT 3
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#define FSL_AUDMIX_CTR_OUTWIDTH_MASK (0x7 << FSL_AUDMIX_CTR_OUTWIDTH_SHIFT)
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#define FSL_AUDMIX_CTR_OUTWIDTH(i) (((i) << FSL_AUDMIX_CTR_OUTWIDTH_SHIFT)\
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& FSL_AUDMIX_CTR_OUTWIDTH_MASK)
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#define FSL_AUDMIX_CTR_OUTCKPOL_SHIFT 6
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#define FSL_AUDMIX_CTR_OUTCKPOL_MASK BIT(FSL_AUDMIX_CTR_OUTCKPOL_SHIFT)
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#define FSL_AUDMIX_CTR_OUTCKPOL(i) ((i) << FSL_AUDMIX_CTR_OUTCKPOL_SHIFT)
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#define FSL_AUDMIX_CTR_MASKRTDF_SHIFT 7
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#define FSL_AUDMIX_CTR_MASKRTDF_MASK BIT(FSL_AUDMIX_CTR_MASKRTDF_SHIFT)
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#define FSL_AUDMIX_CTR_MASKRTDF(i) ((i) << FSL_AUDMIX_CTR_MASKRTDF_SHIFT)
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#define FSL_AUDMIX_CTR_MASKCKDF_SHIFT 8
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#define FSL_AUDMIX_CTR_MASKCKDF_MASK BIT(FSL_AUDMIX_CTR_MASKCKDF_SHIFT)
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#define FSL_AUDMIX_CTR_MASKCKDF(i) ((i) << FSL_AUDMIX_CTR_MASKCKDF_SHIFT)
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#define FSL_AUDMIX_CTR_SYNCMODE_SHIFT 9
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#define FSL_AUDMIX_CTR_SYNCMODE_MASK BIT(FSL_AUDMIX_CTR_SYNCMODE_SHIFT)
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#define FSL_AUDMIX_CTR_SYNCMODE(i) ((i) << FSL_AUDMIX_CTR_SYNCMODE_SHIFT)
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#define FSL_AUDMIX_CTR_SYNCSRC_SHIFT 10
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#define FSL_AUDMIX_CTR_SYNCSRC_MASK BIT(FSL_AUDMIX_CTR_SYNCSRC_SHIFT)
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#define FSL_AUDMIX_CTR_SYNCSRC(i) ((i) << FSL_AUDMIX_CTR_SYNCSRC_SHIFT)
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/* AUDMIX Status Register */
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#define FSL_AUDMIX_STR_RATEDIFF BIT(0)
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#define FSL_AUDMIX_STR_CLKDIFF BIT(1)
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#define FSL_AUDMIX_STR_MIXSTAT_SHIFT 2
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#define FSL_AUDMIX_STR_MIXSTAT_MASK (0x3 << FSL_AUDMIX_STR_MIXSTAT_SHIFT)
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#define FSL_AUDMIX_STR_MIXSTAT(i) (((i) & FSL_AUDMIX_STR_MIXSTAT_MASK) \
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>> FSL_AUDMIX_STR_MIXSTAT_SHIFT)
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/* AUDMIX Attenuation Control Register */
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#define FSL_AUDMIX_ATCR_AT_EN BIT(0)
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#define FSL_AUDMIX_ATCR_AT_UPDN BIT(1)
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#define FSL_AUDMIX_ATCR_ATSTPDIF_SHIFT 2
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#define FSL_AUDMIX_ATCR_ATSTPDFI_MASK \
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(0xfff << FSL_AUDMIX_ATCR_ATSTPDIF_SHIFT)
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/* AUDMIX Attenuation Initial Value Register */
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#define FSL_AUDMIX_ATIVAL_ATINVAL_MASK 0x3FFFF
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/* AUDMIX Attenuation Step Up Factor Register */
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#define FSL_AUDMIX_ATSTPUP_ATSTEPUP_MASK 0x3FFFF
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/* AUDMIX Attenuation Step Down Factor Register */
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#define FSL_AUDMIX_ATSTPDN_ATSTEPDN_MASK 0x3FFFF
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/* AUDMIX Attenuation Step Target Register */
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#define FSL_AUDMIX_ATSTPTGT_ATSTPTG_MASK 0x3FFFF
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/* AUDMIX Attenuation Value Register */
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#define FSL_AUDMIX_ATTNVAL_ATCURVAL_MASK 0x3FFFF
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/* AUDMIX Attenuation Step Number Register */
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#define FSL_AUDMIX_ATSTP_STPCTR_MASK 0x3FFFF
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#define FSL_AUDMIX_MAX_DAIS 2
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struct fsl_audmix {
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struct platform_device *pdev;
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struct regmap *regmap;
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struct clk *ipg_clk;
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u8 tdms;
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};
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#endif /* __FSL_AUDMIX_H */
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