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90 lines
3.0 KiB
C
90 lines
3.0 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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// linux/sound/soc/bcm/bcm63xx-i2s.h
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// Copyright (c) 2020 Broadcom Corporation
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// Author: Kevin-Ke Li <kevin-ke.li@broadcom.com>
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#ifndef __BCM63XX_I2S_H
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#define __BCM63XX_I2S_H
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#define I2S_DESC_FIFO_DEPTH 8
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#define I2S_MISC_CFG (0x003C)
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#define I2S_PAD_LVL_LOOP_DIS_MASK (1 << 2)
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#define I2S_PAD_LVL_LOOP_DIS_ENABLE I2S_PAD_LVL_LOOP_DIS_MASK
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#define I2S_TX_ENABLE_MASK (1 << 31)
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#define I2S_TX_ENABLE I2S_TX_ENABLE_MASK
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#define I2S_TX_OUT_R (1 << 19)
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#define I2S_TX_DATA_ALIGNMENT (1 << 2)
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#define I2S_TX_DATA_ENABLE (1 << 1)
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#define I2S_TX_CLOCK_ENABLE (1 << 0)
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#define I2S_TX_DESC_OFF_LEVEL_SHIFT 12
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#define I2S_TX_DESC_OFF_LEVEL_MASK (0x0F << I2S_TX_DESC_OFF_LEVEL_SHIFT)
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#define I2S_TX_DESC_IFF_LEVEL_SHIFT 8
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#define I2S_TX_DESC_IFF_LEVEL_MASK (0x0F << I2S_TX_DESC_IFF_LEVEL_SHIFT)
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#define I2S_TX_DESC_OFF_INTR_EN_MSK (1 << 1)
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#define I2S_TX_DESC_OFF_INTR_EN I2S_TX_DESC_OFF_INTR_EN_MSK
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#define I2S_TX_CFG (0x0000)
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#define I2S_TX_IRQ_CTL (0x0004)
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#define I2S_TX_IRQ_EN (0x0008)
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#define I2S_TX_IRQ_IFF_THLD (0x000c)
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#define I2S_TX_IRQ_OFF_THLD (0x0010)
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#define I2S_TX_DESC_IFF_ADDR (0x0014)
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#define I2S_TX_DESC_IFF_LEN (0x0018)
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#define I2S_TX_DESC_OFF_ADDR (0x001C)
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#define I2S_TX_DESC_OFF_LEN (0x0020)
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#define I2S_TX_CFG_2 (0x0024)
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#define I2S_TX_SLAVE_MODE_SHIFT 13
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#define I2S_TX_SLAVE_MODE_MASK (1 << I2S_TX_SLAVE_MODE_SHIFT)
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#define I2S_TX_SLAVE_MODE I2S_TX_SLAVE_MODE_MASK
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#define I2S_TX_MASTER_MODE 0
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#define I2S_TX_INTR_MASK 0x0F
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#define I2S_RX_ENABLE_MASK (1 << 31)
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#define I2S_RX_ENABLE I2S_RX_ENABLE_MASK
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#define I2S_RX_IN_R (1 << 19)
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#define I2S_RX_DATA_ALIGNMENT (1 << 2)
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#define I2S_RX_CLOCK_ENABLE (1 << 0)
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#define I2S_RX_DESC_OFF_LEVEL_SHIFT 12
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#define I2S_RX_DESC_OFF_LEVEL_MASK (0x0F << I2S_RX_DESC_OFF_LEVEL_SHIFT)
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#define I2S_RX_DESC_IFF_LEVEL_SHIFT 8
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#define I2S_RX_DESC_IFF_LEVEL_MASK (0x0F << I2S_RX_DESC_IFF_LEVEL_SHIFT)
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#define I2S_RX_DESC_OFF_INTR_EN_MSK (1 << 1)
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#define I2S_RX_DESC_OFF_INTR_EN I2S_RX_DESC_OFF_INTR_EN_MSK
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#define I2S_RX_CFG (0x0040) /* 20c0 */
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#define I2S_RX_IRQ_CTL (0x0044)
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#define I2S_RX_IRQ_EN (0x0048)
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#define I2S_RX_IRQ_IFF_THLD (0x004C)
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#define I2S_RX_IRQ_OFF_THLD (0x0050)
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#define I2S_RX_DESC_IFF_ADDR (0x0054)
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#define I2S_RX_DESC_IFF_LEN (0x0058)
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#define I2S_RX_DESC_OFF_ADDR (0x005C)
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#define I2S_RX_DESC_OFF_LEN (0x0060)
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#define I2S_RX_CFG_2 (0x0064)
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#define I2S_RX_SLAVE_MODE_SHIFT 13
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#define I2S_RX_SLAVE_MODE_MASK (1 << I2S_RX_SLAVE_MODE_SHIFT)
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#define I2S_RX_SLAVE_MODE I2S_RX_SLAVE_MODE_MASK
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#define I2S_RX_MASTER_MODE 0
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#define I2S_RX_INTR_MASK 0x0F
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#define I2S_REG_MAX 0x007C
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struct bcm_i2s_priv {
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struct device *dev;
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struct regmap *regmap_i2s;
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struct clk *i2s_clk;
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struct snd_pcm_substream *play_substream;
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struct snd_pcm_substream *capture_substream;
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struct i2s_dma_desc *play_dma_desc;
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struct i2s_dma_desc *capture_dma_desc;
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};
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extern int bcm63xx_soc_platform_probe(struct platform_device *pdev,
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struct bcm_i2s_priv *i2s_priv);
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extern int bcm63xx_soc_platform_remove(struct platform_device *pdev);
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#endif
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