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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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ecba655bf5
Besides S24_LE and S32_LE, the IEC958_SUBFRAME_LE format is also supported by this HDMI audio interface. Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Link: https://patch.msgid.link/20251021090933.3470495-1-shengjiu.wang@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright 2020 NXP
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*/
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#ifndef _FSL_AUD2HTX_H
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#define _FSL_AUD2HTX_H
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#define FSL_AUD2HTX_FORMATS (SNDRV_PCM_FMTBIT_S24_LE | \
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SNDRV_PCM_FMTBIT_S32_LE | \
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SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
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/* AUD2HTX Register Map */
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#define AUD2HTX_CTRL 0x0 /* AUD2HTX Control Register */
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#define AUD2HTX_CTRL_EXT 0x4 /* AUD2HTX Control Extended Register */
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#define AUD2HTX_WR 0x8 /* AUD2HTX Write Register */
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#define AUD2HTX_STATUS 0xC /* AUD2HTX Status Register */
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#define AUD2HTX_IRQ_NOMASK 0x10 /* AUD2HTX Nonmasked Interrupt Flags Register */
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#define AUD2HTX_IRQ_MASKED 0x14 /* AUD2HTX Masked Interrupt Flags Register */
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#define AUD2HTX_IRQ_MASK 0x18 /* AUD2HTX IRQ Masks Register */
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/* AUD2HTX Control Register */
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#define AUD2HTX_CTRL_EN BIT(0)
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/* AUD2HTX Control Extended Register */
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#define AUD2HTX_CTRE_DE BIT(0)
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#define AUD2HTX_CTRE_DT_SHIFT 0x1
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#define AUD2HTX_CTRE_DT_WIDTH 0x2
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#define AUD2HTX_CTRE_DT_MASK ((BIT(AUD2HTX_CTRE_DT_WIDTH) - 1) \
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<< AUD2HTX_CTRE_DT_SHIFT)
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#define AUD2HTX_CTRE_WL_SHIFT 16
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#define AUD2HTX_CTRE_WL_WIDTH 5
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#define AUD2HTX_CTRE_WL_MASK ((BIT(AUD2HTX_CTRE_WL_WIDTH) - 1) \
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<< AUD2HTX_CTRE_WL_SHIFT)
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#define AUD2HTX_CTRE_WH_SHIFT 24
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#define AUD2HTX_CTRE_WH_WIDTH 5
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#define AUD2HTX_CTRE_WH_MASK ((BIT(AUD2HTX_CTRE_WH_WIDTH) - 1) \
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<< AUD2HTX_CTRE_WH_SHIFT)
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/* AUD2HTX IRQ Masks Register */
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#define AUD2HTX_WM_HIGH_IRQ_MASK BIT(2)
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#define AUD2HTX_WM_LOW_IRQ_MASK BIT(1)
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#define AUD2HTX_OVF_MASK BIT(0)
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#define AUD2HTX_FIFO_DEPTH 0x20
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#define AUD2HTX_WTMK_LOW 0x10
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#define AUD2HTX_WTMK_HIGH 0x10
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#define AUD2HTX_MAXBURST 0x10
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/**
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* fsl_aud2htx: AUD2HTX private data
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*
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* @pdev: platform device pointer
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* @regmap: regmap handler
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* @bus_clk: clock source to access register
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* @dma_params_rx: DMA parameters for receive channel
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* @dma_params_tx: DMA parameters for transmit channel
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*/
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struct fsl_aud2htx {
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struct platform_device *pdev;
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struct regmap *regmap;
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struct clk *bus_clk;
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struct snd_dmaengine_dai_dma_data dma_params_rx;
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struct snd_dmaengine_dai_dma_data dma_params_tx;
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};
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#endif /* _FSL_AUD2HTX_H */
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