1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
22 #include <sound/soc-dai.h>
26 #define DRV_NAME "acp-pdm"
41 			    struct snd_soc_dai *dai)  in acp_dmic_prepare()  argument
43 	struct acp_stream *stream = substream->runtime->private_data;  in acp_dmic_prepare()
44 	struct device *dev = dai->component->dev;  in acp_dmic_prepare()
50 	writel(PDM_CLK_FREQ_MASK, adata->acp_base + ACP_WOV_CLK_CTRL);  in acp_dmic_prepare()
51 	dmic_ctrl = readl(adata->acp_base + ACP_WOV_MISC_CTRL);  in acp_dmic_prepare()
53 	writel(dmic_ctrl, adata->acp_base + ACP_WOV_MISC_CTRL);  in acp_dmic_prepare()
55 	period_bytes = frames_to_bytes(substream->runtime,  in acp_dmic_prepare()
56 			substream->runtime->period_size);  in acp_dmic_prepare()
57 	size_dmic = frames_to_bytes(substream->runtime,  in acp_dmic_prepare()
58 			substream->runtime->buffer_size);  in acp_dmic_prepare()
60 	physical_addr = stream->reg_offset + MEM_WINDOW_START;  in acp_dmic_prepare()
63 	writel(physical_addr, adata->acp_base + ACP_WOV_RX_RINGBUFADDR);  in acp_dmic_prepare()
64 	writel(size_dmic, adata->acp_base + ACP_WOV_RX_RINGBUFSIZE);  in acp_dmic_prepare()
65 	writel(period_bytes, adata->acp_base + ACP_WOV_RX_INTR_WATERMARK_SIZE);  in acp_dmic_prepare()
66 	writel(0x01, adata->acp_base + ACPAXI2AXI_ATU_CTRL);  in acp_dmic_prepare()
72 				int cmd, struct snd_soc_dai *dai)  in acp_dmic_dai_trigger()  argument
74 	struct device *dev = dai->component->dev;  in acp_dmic_dai_trigger()
83 		dma_enable = readl(adata->acp_base + ACP_WOV_PDM_DMA_ENABLE);  in acp_dmic_dai_trigger()
85 			writel(PDM_ENABLE, adata->acp_base + ACP_WOV_PDM_ENABLE);  in acp_dmic_dai_trigger()
86 			writel(PDM_ENABLE, adata->acp_base + ACP_WOV_PDM_DMA_ENABLE);  in acp_dmic_dai_trigger()
89 		ret = readl_poll_timeout_atomic(adata->acp_base + ACP_WOV_PDM_DMA_ENABLE,  in acp_dmic_dai_trigger()
96 		dma_enable = readl(adata->acp_base + ACP_WOV_PDM_DMA_ENABLE);  in acp_dmic_dai_trigger()
98 			writel(PDM_DISABLE, adata->acp_base + ACP_WOV_PDM_ENABLE);  in acp_dmic_dai_trigger()
99 			writel(PDM_DISABLE, adata->acp_base + ACP_WOV_PDM_DMA_ENABLE);  in acp_dmic_dai_trigger()
103 		ret = readl_poll_timeout_atomic(adata->acp_base + ACP_WOV_PDM_DMA_ENABLE,  in acp_dmic_dai_trigger()
108 		ret = -EINVAL;  in acp_dmic_dai_trigger()
116 			     struct snd_pcm_hw_params *hwparams, struct snd_soc_dai *dai)  in acp_dmic_hwparams()  argument
118 	struct device *dev = dai->component->dev;  in acp_dmic_hwparams()
120 	unsigned int channels, ch_mask;  in acp_dmic_hwparams()  local
122 	channels = params_channels(hwparams);  in acp_dmic_hwparams()
123 	switch (channels) {  in acp_dmic_hwparams()
134 		dev_err(dev, "Invalid channels %d\n", channels);  in acp_dmic_hwparams()
135 		return -EINVAL;  in acp_dmic_hwparams()
139 		dev_err(dai->dev, "Invalid format:%d\n", params_format(hwparams));  in acp_dmic_hwparams()
140 		return -EINVAL;  in acp_dmic_hwparams()
143 	writel(ch_mask, adata->acp_base + ACP_WOV_PDM_NO_OF_CHANNELS);  in acp_dmic_hwparams()
144 	writel(PDM_DEC_64, adata->acp_base + ACP_WOV_PDM_DECIMATION_FACTOR);  in acp_dmic_hwparams()
150 				struct snd_soc_dai *dai)  in acp_dmic_dai_startup()  argument
152 	struct acp_stream *stream = substream->runtime->private_data;  in acp_dmic_dai_startup()
153 	struct device *dev = dai->component->dev;  in acp_dmic_dai_startup()
157 	stream->dai_id = DMIC_INSTANCE;  in acp_dmic_dai_startup()
158 	stream->irq_bit = BIT(PDM_DMA_STAT);  in acp_dmic_dai_startup()
159 	stream->pte_offset = ACP_SRAM_PDM_PTE_OFFSET;  in acp_dmic_dai_startup()
160 	stream->reg_offset = ACP_REGION2_OFFSET;  in acp_dmic_dai_startup()
171 				  struct snd_soc_dai *dai)  in acp_dmic_dai_shutdown()  argument
173 	struct device *dev = dai->component->dev;  in acp_dmic_dai_shutdown()