1 files changed, 107 insertions, 0 deletions
diff --git a/sound/soc/amd/yc/acp6x.h b/sound/soc/amd/yc/acp6x.h
new file mode 100644
index 000000000..74b596e68
--- /dev/null
+++ b/sound/soc/amd/yc/acp6x.h
@@ -0,0 +1,107 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * AMD ALSA SoC PDM Driver
+ *
+ * Copyright (C) 2021 Advanced Micro Devices, Inc. All rights reserved.
+ */
+
+#include "acp6x_chip_offset_byte.h"
+
+#define ACP_DEVICE_ID 0x15E2
+#define ACP6x_PHY_BASE_ADDRESS 0x1240000
+#define ACP6x_REG_START		0x1240000
+#define ACP6x_REG_END		0x1250200
+#define ACP6x_DEVS		3
+#define ACP6x_PDM_MODE		1
+
+#define ACP_SOFT_RESET_SOFTRESET_AUDDONE_MASK	0x00010001
+#define ACP_PGFSM_CNTL_POWER_ON_MASK	1
+#define ACP_PGFSM_CNTL_POWER_OFF_MASK	0
+#define ACP_PGFSM_STATUS_MASK		3
+#define ACP_POWERED_ON			0
+#define ACP_POWER_ON_IN_PROGRESS	1
+#define ACP_POWERED_OFF			2
+#define ACP_POWER_OFF_IN_PROGRESS	3
+
+#define ACP_ERROR_MASK 0x20000000
+#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF
+#define PDM_DMA_STAT 0x10
+
+#define PDM_DMA_INTR_MASK	0x10000
+#define ACP_ERROR_STAT	29
+#define PDM_DECIMATION_FACTOR	2
+#define ACP_PDM_CLK_FREQ_MASK	7
+#define ACP_WOV_MISC_CTRL_MASK	0x10
+#define ACP_PDM_ENABLE		1
+#define ACP_PDM_DISABLE		0
+#define ACP_PDM_DMA_EN_STATUS	2
+#define TWO_CH		2
+#define DELAY_US	5
+#define ACP_COUNTER	20000
+
+#define ACP_SRAM_PTE_OFFSET	0x03800000
+#define PAGE_SIZE_4K_ENABLE	2
+#define PDM_PTE_OFFSET		0
+#define PDM_MEM_WINDOW_START	0x4000000
+
+#define CAPTURE_MIN_NUM_PERIODS     4
+#define CAPTURE_MAX_NUM_PERIODS     4
+#define CAPTURE_MAX_PERIOD_SIZE     8192
+#define CAPTURE_MIN_PERIOD_SIZE     4096
+
+#define MAX_BUFFER (CAPTURE_MAX_PERIOD_SIZE * CAPTURE_MAX_NUM_PERIODS)
+#define MIN_BUFFER MAX_BUFFER
+
+/* time in ms for runtime suspend delay */
+#define ACP_SUSPEND_DELAY_MS	2000
+
+enum acp_config {
+	ACP_CONFIG_0 = 0,
+	ACP_CONFIG_1,
+	ACP_CONFIG_2,
+	ACP_CONFIG_3,
+	ACP_CONFIG_4,
+	ACP_CONFIG_5,
+	ACP_CONFIG_6,
+	ACP_CONFIG_7,
+	ACP_CONFIG_8,
+	ACP_CONFIG_9,
+	ACP_CONFIG_10,
+	ACP_CONFIG_11,
+	ACP_CONFIG_12,
+	ACP_CONFIG_13,
+	ACP_CONFIG_14,
+	ACP_CONFIG_15,
+};
+
+struct pdm_dev_data {
+	u32 pdm_irq;
+	void __iomem *acp6x_base;
+	struct snd_pcm_substream *capture_stream;
+};
+
+struct pdm_stream_instance {
+	u16 num_pages;
+	u16 channels;
+	dma_addr_t dma_addr;
+	u64 bytescount;
+	void __iomem *acp6x_base;
+};
+
+union acp_pdm_dma_count {
+	struct {
+	u32 low;
+	u32 high;
+	} bcount;
+	u64 bytescount;
+};
+
+static inline u32 acp6x_readl(void __iomem *base_addr)
+{
+	return readl(base_addr - ACP6x_PHY_BASE_ADDRESS);
+}
+
+static inline void acp6x_writel(u32 val, void __iomem *base_addr)
+{
+	writel(val, base_addr - ACP6x_PHY_BASE_ADDRESS);
+}