Linux Audio
Check our new training course
Embedded Linux Audio
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89
// SPDX-License-Identifier: GPL-2.0-or-later // linux/sound/soc/bcm/bcm63xx-i2s.h // Copyright (c) 2020 Broadcom Corporation // Author: Kevin-Ke Li <kevin-ke.li@broadcom.com> #ifndef __BCM63XX_I2S_H #define __BCM63XX_I2S_H #define I2S_DESC_FIFO_DEPTH 8 #define I2S_MISC_CFG (0x003C) #define I2S_PAD_LVL_LOOP_DIS_MASK (1 << 2) #define I2S_PAD_LVL_LOOP_DIS_ENABLE I2S_PAD_LVL_LOOP_DIS_MASK #define I2S_TX_ENABLE_MASK (1 << 31) #define I2S_TX_ENABLE I2S_TX_ENABLE_MASK #define I2S_TX_OUT_R (1 << 19) #define I2S_TX_DATA_ALIGNMENT (1 << 2) #define I2S_TX_DATA_ENABLE (1 << 1) #define I2S_TX_CLOCK_ENABLE (1 << 0) #define I2S_TX_DESC_OFF_LEVEL_SHIFT 12 #define I2S_TX_DESC_OFF_LEVEL_MASK (0x0F << I2S_TX_DESC_OFF_LEVEL_SHIFT) #define I2S_TX_DESC_IFF_LEVEL_SHIFT 8 #define I2S_TX_DESC_IFF_LEVEL_MASK (0x0F << I2S_TX_DESC_IFF_LEVEL_SHIFT) #define I2S_TX_DESC_OFF_INTR_EN_MSK (1 << 1) #define I2S_TX_DESC_OFF_INTR_EN I2S_TX_DESC_OFF_INTR_EN_MSK #define I2S_TX_CFG (0x0000) #define I2S_TX_IRQ_CTL (0x0004) #define I2S_TX_IRQ_EN (0x0008) #define I2S_TX_IRQ_IFF_THLD (0x000c) #define I2S_TX_IRQ_OFF_THLD (0x0010) #define I2S_TX_DESC_IFF_ADDR (0x0014) #define I2S_TX_DESC_IFF_LEN (0x0018) #define I2S_TX_DESC_OFF_ADDR (0x001C) #define I2S_TX_DESC_OFF_LEN (0x0020) #define I2S_TX_CFG_2 (0x0024) #define I2S_TX_SLAVE_MODE_SHIFT 13 #define I2S_TX_SLAVE_MODE_MASK (1 << I2S_TX_SLAVE_MODE_SHIFT) #define I2S_TX_SLAVE_MODE I2S_TX_SLAVE_MODE_MASK #define I2S_TX_MASTER_MODE 0 #define I2S_TX_INTR_MASK 0x0F #define I2S_RX_ENABLE_MASK (1 << 31) #define I2S_RX_ENABLE I2S_RX_ENABLE_MASK #define I2S_RX_IN_R (1 << 19) #define I2S_RX_DATA_ALIGNMENT (1 << 2) #define I2S_RX_CLOCK_ENABLE (1 << 0) #define I2S_RX_DESC_OFF_LEVEL_SHIFT 12 #define I2S_RX_DESC_OFF_LEVEL_MASK (0x0F << I2S_RX_DESC_OFF_LEVEL_SHIFT) #define I2S_RX_DESC_IFF_LEVEL_SHIFT 8 #define I2S_RX_DESC_IFF_LEVEL_MASK (0x0F << I2S_RX_DESC_IFF_LEVEL_SHIFT) #define I2S_RX_DESC_OFF_INTR_EN_MSK (1 << 1) #define I2S_RX_DESC_OFF_INTR_EN I2S_RX_DESC_OFF_INTR_EN_MSK #define I2S_RX_CFG (0x0040) /* 20c0 */ #define I2S_RX_IRQ_CTL (0x0044) #define I2S_RX_IRQ_EN (0x0048) #define I2S_RX_IRQ_IFF_THLD (0x004C) #define I2S_RX_IRQ_OFF_THLD (0x0050) #define I2S_RX_DESC_IFF_ADDR (0x0054) #define I2S_RX_DESC_IFF_LEN (0x0058) #define I2S_RX_DESC_OFF_ADDR (0x005C) #define I2S_RX_DESC_OFF_LEN (0x0060) #define I2S_RX_CFG_2 (0x0064) #define I2S_RX_SLAVE_MODE_SHIFT 13 #define I2S_RX_SLAVE_MODE_MASK (1 << I2S_RX_SLAVE_MODE_SHIFT) #define I2S_RX_SLAVE_MODE I2S_RX_SLAVE_MODE_MASK #define I2S_RX_MASTER_MODE 0 #define I2S_RX_INTR_MASK 0x0F #define I2S_REG_MAX 0x007C struct bcm_i2s_priv { struct device *dev; struct regmap *regmap_i2s; struct clk *i2s_clk; struct snd_pcm_substream *play_substream; struct snd_pcm_substream *capture_substream; struct i2s_dma_desc *play_dma_desc; struct i2s_dma_desc *capture_dma_desc; }; extern int bcm63xx_soc_platform_probe(struct platform_device *pdev, struct bcm_i2s_priv *i2s_priv); extern int bcm63xx_soc_platform_remove(struct platform_device *pdev); #endif
