1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
22 #include <sound/soc-dai.h>
26 #define DRV_NAME "acp-pdm"
29 			    struct snd_soc_dai *dai)  in acp_dmic_prepare()  argument
31 	struct acp_stream *stream = substream->runtime->private_data;  in acp_dmic_prepare()
32 	struct device *dev = dai->component->dev;  in acp_dmic_prepare()
38 	writel(PDM_CLK_FREQ_MASK, adata->acp_base + ACP_WOV_CLK_CTRL);  in acp_dmic_prepare()
39 	dmic_ctrl = readl(adata->acp_base + ACP_WOV_MISC_CTRL);  in acp_dmic_prepare()
41 	writel(dmic_ctrl, adata->acp_base + ACP_WOV_MISC_CTRL);  in acp_dmic_prepare()
43 	period_bytes = frames_to_bytes(substream->runtime,  in acp_dmic_prepare()
44 			substream->runtime->period_size);  in acp_dmic_prepare()
45 	size_dmic = frames_to_bytes(substream->runtime,  in acp_dmic_prepare()
46 			substream->runtime->buffer_size);  in acp_dmic_prepare()
48 	physical_addr = stream->reg_offset + MEM_WINDOW_START;  in acp_dmic_prepare()
51 	writel(physical_addr, adata->acp_base + ACP_WOV_RX_RINGBUFADDR);  in acp_dmic_prepare()
52 	writel(size_dmic, adata->acp_base + ACP_WOV_RX_RINGBUFSIZE);  in acp_dmic_prepare()
53 	writel(period_bytes, adata->acp_base + ACP_WOV_RX_INTR_WATERMARK_SIZE);  in acp_dmic_prepare()
54 	writel(0x01, adata->acp_base + ACPAXI2AXI_ATU_CTRL);  in acp_dmic_prepare()
60 				int cmd, struct snd_soc_dai *dai)  in acp_dmic_dai_trigger()  argument
62 	struct device *dev = dai->component->dev;  in acp_dmic_dai_trigger()
71 		dma_enable = readl(adata->acp_base + ACP_WOV_PDM_DMA_ENABLE);  in acp_dmic_dai_trigger()
73 			writel(PDM_ENABLE, adata->acp_base + ACP_WOV_PDM_ENABLE);  in acp_dmic_dai_trigger()
74 			writel(PDM_ENABLE, adata->acp_base + ACP_WOV_PDM_DMA_ENABLE);  in acp_dmic_dai_trigger()
77 		ret = readl_poll_timeout_atomic(adata->acp_base + ACP_WOV_PDM_DMA_ENABLE,  in acp_dmic_dai_trigger()
84 		dma_enable = readl(adata->acp_base + ACP_WOV_PDM_DMA_ENABLE);  in acp_dmic_dai_trigger()
86 			writel(PDM_DISABLE, adata->acp_base + ACP_WOV_PDM_ENABLE);  in acp_dmic_dai_trigger()
87 			writel(PDM_DISABLE, adata->acp_base + ACP_WOV_PDM_DMA_ENABLE);  in acp_dmic_dai_trigger()
91 		ret = readl_poll_timeout_atomic(adata->acp_base + ACP_WOV_PDM_DMA_ENABLE,  in acp_dmic_dai_trigger()
96 		ret = -EINVAL;  in acp_dmic_dai_trigger()
104 			     struct snd_pcm_hw_params *hwparams, struct snd_soc_dai *dai)  in acp_dmic_hwparams()  argument
106 	struct device *dev = dai->component->dev;  in acp_dmic_hwparams()
108 	unsigned int channels, ch_mask;  in acp_dmic_hwparams()  local
110 	channels = params_channels(hwparams);  in acp_dmic_hwparams()
111 	switch (channels) {  in acp_dmic_hwparams()
122 		dev_err(dev, "Invalid channels %d\n", channels);  in acp_dmic_hwparams()
123 		return -EINVAL;  in acp_dmic_hwparams()
126 	adata->ch_mask = ch_mask;  in acp_dmic_hwparams()
128 		dev_err(dai->dev, "Invalid format:%d\n", params_format(hwparams));  in acp_dmic_hwparams()
129 		return -EINVAL;  in acp_dmic_hwparams()
132 	writel(ch_mask, adata->acp_base + ACP_WOV_PDM_NO_OF_CHANNELS);  in acp_dmic_hwparams()
133 	writel(PDM_DEC_64, adata->acp_base + ACP_WOV_PDM_DECIMATION_FACTOR);  in acp_dmic_hwparams()
139 				struct snd_soc_dai *dai)  in acp_dmic_dai_startup()  argument
141 	struct acp_stream *stream = substream->runtime->private_data;  in acp_dmic_dai_startup()
142 	struct device *dev = dai->component->dev;  in acp_dmic_dai_startup()
146 	stream->dai_id = DMIC_INSTANCE;  in acp_dmic_dai_startup()
147 	stream->irq_bit = BIT(PDM_DMA_STAT);  in acp_dmic_dai_startup()
148 	stream->pte_offset = ACP_SRAM_PDM_PTE_OFFSET;  in acp_dmic_dai_startup()
149 	stream->reg_offset = ACP_REGION2_OFFSET;  in acp_dmic_dai_startup()
160 				  struct snd_soc_dai *dai)  in acp_dmic_dai_shutdown()  argument
162 	struct device *dev = dai->component->dev;  in acp_dmic_dai_shutdown()