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-rw-r--r--sound/soc/amd/raven/acp3x.h162
1 files changed, 162 insertions, 0 deletions
diff --git a/sound/soc/amd/raven/acp3x.h b/sound/soc/amd/raven/acp3x.h
new file mode 100644
index 000000000..7702f628e
--- /dev/null
+++ b/sound/soc/amd/raven/acp3x.h
@@ -0,0 +1,162 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * AMD ALSA SoC PCM Driver
+ *
+ * Copyright 2016 Advanced Micro Devices, Inc.
+ */
+
+#include "chip_offset_byte.h"
+#include <sound/pcm.h>
+#define I2S_SP_INSTANCE 0x01
+#define I2S_BT_INSTANCE 0x02
+
+#define TDM_ENABLE 1
+#define TDM_DISABLE 0
+
+#define ACP3x_DEVS 4
+#define ACP3x_PHY_BASE_ADDRESS 0x1240000
+#define ACP3x_I2S_MODE 0
+#define ACP3x_REG_START 0x1240000
+#define ACP3x_REG_END 0x1250200
+#define ACP3x_I2STDM_REG_START 0x1242400
+#define ACP3x_I2STDM_REG_END 0x1242410
+#define ACP3x_BT_TDM_REG_START 0x1242800
+#define ACP3x_BT_TDM_REG_END 0x1242810
+#define I2S_MODE 0x04
+#define I2S_RX_THRESHOLD 27
+#define I2S_TX_THRESHOLD 28
+#define BT_TX_THRESHOLD 26
+#define BT_RX_THRESHOLD 25
+#define ACP_ERR_INTR_MASK 29
+#define ACP3x_POWER_ON 0x00
+#define ACP3x_POWER_ON_IN_PROGRESS 0x01
+#define ACP3x_POWER_OFF 0x02
+#define ACP3x_POWER_OFF_IN_PROGRESS 0x03
+#define ACP3x_SOFT_RESET__SoftResetAudDone_MASK 0x00010001
+
+#define ACP_SRAM_PTE_OFFSET 0x02050000
+#define ACP_SRAM_SP_PB_PTE_OFFSET 0x0
+#define ACP_SRAM_SP_CP_PTE_OFFSET 0x100
+#define ACP_SRAM_BT_PB_PTE_OFFSET 0x200
+#define ACP_SRAM_BT_CP_PTE_OFFSET 0x300
+#define PAGE_SIZE_4K_ENABLE 0x2
+#define I2S_SP_TX_MEM_WINDOW_START 0x4000000
+#define I2S_SP_RX_MEM_WINDOW_START 0x4020000
+#define I2S_BT_TX_MEM_WINDOW_START 0x4040000
+#define I2S_BT_RX_MEM_WINDOW_START 0x4060000
+
+#define SP_PB_FIFO_ADDR_OFFSET 0x500
+#define SP_CAPT_FIFO_ADDR_OFFSET 0x700
+#define BT_PB_FIFO_ADDR_OFFSET 0x900
+#define BT_CAPT_FIFO_ADDR_OFFSET 0xB00
+#define PLAYBACK_MIN_NUM_PERIODS 2
+#define PLAYBACK_MAX_NUM_PERIODS 8
+#define PLAYBACK_MAX_PERIOD_SIZE 8192
+#define PLAYBACK_MIN_PERIOD_SIZE 1024
+#define CAPTURE_MIN_NUM_PERIODS 2
+#define CAPTURE_MAX_NUM_PERIODS 8
+#define CAPTURE_MAX_PERIOD_SIZE 8192
+#define CAPTURE_MIN_PERIOD_SIZE 1024
+
+#define MAX_BUFFER (PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS)
+#define MIN_BUFFER MAX_BUFFER
+#define FIFO_SIZE 0x100
+#define DMA_SIZE 0x40
+#define FRM_LEN 0x100
+
+#define SLOT_WIDTH_8 0x08
+#define SLOT_WIDTH_16 0x10
+#define SLOT_WIDTH_24 0x18
+#define SLOT_WIDTH_32 0x20
+#define ACP_PGFSM_CNTL_POWER_ON_MASK 0x01
+#define ACP_PGFSM_CNTL_POWER_OFF_MASK 0x00
+#define ACP_PGFSM_STATUS_MASK 0x03
+#define ACP_POWERED_ON 0x00
+#define ACP_POWER_ON_IN_PROGRESS 0x01
+#define ACP_POWERED_OFF 0x02
+#define ACP_POWER_OFF_IN_PROGRESS 0x03
+
+#define ACP3x_ITER_IRER_SAMP_LEN_MASK 0x38
+#define ACP_EXT_INTR_STAT_CLEAR_MASK 0xFFFFFFFF
+
+struct acp3x_platform_info {
+ u16 play_i2s_instance;
+ u16 cap_i2s_instance;
+ u16 capture_channel;
+};
+
+struct i2s_dev_data {
+ bool tdm_mode;
+ int i2s_irq;
+ u16 i2s_instance;
+ u32 tdm_fmt;
+ u32 substream_type;
+ void __iomem *acp3x_base;
+ struct snd_pcm_substream *play_stream;
+ struct snd_pcm_substream *capture_stream;
+ struct snd_pcm_substream *i2ssp_play_stream;
+ struct snd_pcm_substream *i2ssp_capture_stream;
+};
+
+struct i2s_stream_instance {
+ u16 num_pages;
+ u16 i2s_instance;
+ u16 capture_channel;
+ u16 direction;
+ u16 channels;
+ u32 xfer_resolution;
+ u32 val;
+ dma_addr_t dma_addr;
+ u64 bytescount;
+ void __iomem *acp3x_base;
+};
+
+static inline u32 rv_readl(void __iomem *base_addr)
+{
+ return readl(base_addr - ACP3x_PHY_BASE_ADDRESS);
+}
+
+static inline void rv_writel(u32 val, void __iomem *base_addr)
+{
+ writel(val, base_addr - ACP3x_PHY_BASE_ADDRESS);
+}
+
+static inline u64 acp_get_byte_count(struct i2s_stream_instance *rtd,
+ int direction)
+{
+ u64 byte_count;
+
+ if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
+ switch (rtd->i2s_instance) {
+ case I2S_BT_INSTANCE:
+ byte_count = rv_readl(rtd->acp3x_base +
+ mmACP_BT_TX_LINEARPOSITIONCNTR_HIGH);
+ byte_count |= rv_readl(rtd->acp3x_base +
+ mmACP_BT_TX_LINEARPOSITIONCNTR_LOW);
+ break;
+ case I2S_SP_INSTANCE:
+ default:
+ byte_count = rv_readl(rtd->acp3x_base +
+ mmACP_I2S_TX_LINEARPOSITIONCNTR_HIGH);
+ byte_count |= rv_readl(rtd->acp3x_base +
+ mmACP_I2S_TX_LINEARPOSITIONCNTR_LOW);
+ }
+
+ } else {
+ switch (rtd->i2s_instance) {
+ case I2S_BT_INSTANCE:
+ byte_count = rv_readl(rtd->acp3x_base +
+ mmACP_BT_RX_LINEARPOSITIONCNTR_HIGH);
+ byte_count |= rv_readl(rtd->acp3x_base +
+ mmACP_BT_RX_LINEARPOSITIONCNTR_LOW);
+ break;
+ case I2S_SP_INSTANCE:
+ default:
+ byte_count = rv_readl(rtd->acp3x_base +
+ mmACP_I2S_RX_LINEARPOSITIONCNTR_HIGH);
+ byte_count |= rv_readl(rtd->acp3x_base +
+ mmACP_I2S_RX_LINEARPOSITIONCNTR_LOW);
+ }
+ }
+ return byte_count;
+}