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-rw-r--r--sound/soc/amd/yc/acp6x.h107
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);
+}