| Kevin Li | 88eb404 | 2020-03-12 15:32:41 -0700 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 2 | // linux/sound/soc/bcm/bcm63xx-i2s.h |
| 3 | // Copyright (c) 2020 Broadcom Corporation |
| 4 | // Author: Kevin-Ke Li <kevin-ke.li@broadcom.com> |
| 5 | |
| 6 | #ifndef __BCM63XX_I2S_H |
| 7 | #define __BCM63XX_I2S_H |
| 8 | |
| 9 | #define I2S_DESC_FIFO_DEPTH 8 |
| 10 | #define I2S_MISC_CFG (0x003C) |
| 11 | #define I2S_PAD_LVL_LOOP_DIS_MASK (1 << 2) |
| 12 | #define I2S_PAD_LVL_LOOP_DIS_ENABLE I2S_PAD_LVL_LOOP_DIS_MASK |
| 13 | |
| 14 | #define I2S_TX_ENABLE_MASK (1 << 31) |
| 15 | #define I2S_TX_ENABLE I2S_TX_ENABLE_MASK |
| 16 | #define I2S_TX_OUT_R (1 << 19) |
| 17 | #define I2S_TX_DATA_ALIGNMENT (1 << 2) |
| 18 | #define I2S_TX_DATA_ENABLE (1 << 1) |
| 19 | #define I2S_TX_CLOCK_ENABLE (1 << 0) |
| 20 | |
| 21 | #define I2S_TX_DESC_OFF_LEVEL_SHIFT 12 |
| 22 | #define I2S_TX_DESC_OFF_LEVEL_MASK (0x0F << I2S_TX_DESC_OFF_LEVEL_SHIFT) |
| 23 | #define I2S_TX_DESC_IFF_LEVEL_SHIFT 8 |
| 24 | #define I2S_TX_DESC_IFF_LEVEL_MASK (0x0F << I2S_TX_DESC_IFF_LEVEL_SHIFT) |
| 25 | #define I2S_TX_DESC_OFF_INTR_EN_MSK (1 << 1) |
| 26 | #define I2S_TX_DESC_OFF_INTR_EN I2S_TX_DESC_OFF_INTR_EN_MSK |
| 27 | |
| 28 | #define I2S_TX_CFG (0x0000) |
| 29 | #define I2S_TX_IRQ_CTL (0x0004) |
| 30 | #define I2S_TX_IRQ_EN (0x0008) |
| 31 | #define I2S_TX_IRQ_IFF_THLD (0x000c) |
| 32 | #define I2S_TX_IRQ_OFF_THLD (0x0010) |
| 33 | #define I2S_TX_DESC_IFF_ADDR (0x0014) |
| 34 | #define I2S_TX_DESC_IFF_LEN (0x0018) |
| 35 | #define I2S_TX_DESC_OFF_ADDR (0x001C) |
| 36 | #define I2S_TX_DESC_OFF_LEN (0x0020) |
| 37 | #define I2S_TX_CFG_2 (0x0024) |
| 38 | #define I2S_TX_SLAVE_MODE_SHIFT 13 |
| 39 | #define I2S_TX_SLAVE_MODE_MASK (1 << I2S_TX_SLAVE_MODE_SHIFT) |
| 40 | #define I2S_TX_SLAVE_MODE I2S_TX_SLAVE_MODE_MASK |
| 41 | #define I2S_TX_MASTER_MODE 0 |
| 42 | #define I2S_TX_INTR_MASK 0x0F |
| 43 | |
| 44 | #define I2S_RX_ENABLE_MASK (1 << 31) |
| 45 | #define I2S_RX_ENABLE I2S_RX_ENABLE_MASK |
| 46 | #define I2S_RX_IN_R (1 << 19) |
| 47 | #define I2S_RX_DATA_ALIGNMENT (1 << 2) |
| 48 | #define I2S_RX_CLOCK_ENABLE (1 << 0) |
| 49 | |
| 50 | #define I2S_RX_DESC_OFF_LEVEL_SHIFT 12 |
| 51 | #define I2S_RX_DESC_OFF_LEVEL_MASK (0x0F << I2S_RX_DESC_OFF_LEVEL_SHIFT) |
| 52 | #define I2S_RX_DESC_IFF_LEVEL_SHIFT 8 |
| 53 | #define I2S_RX_DESC_IFF_LEVEL_MASK (0x0F << I2S_RX_DESC_IFF_LEVEL_SHIFT) |
| 54 | #define I2S_RX_DESC_OFF_INTR_EN_MSK (1 << 1) |
| 55 | #define I2S_RX_DESC_OFF_INTR_EN I2S_RX_DESC_OFF_INTR_EN_MSK |
| 56 | |
| 57 | #define I2S_RX_CFG (0x0040) /* 20c0 */ |
| 58 | #define I2S_RX_IRQ_CTL (0x0044) |
| 59 | #define I2S_RX_IRQ_EN (0x0048) |
| 60 | #define I2S_RX_IRQ_IFF_THLD (0x004C) |
| 61 | #define I2S_RX_IRQ_OFF_THLD (0x0050) |
| 62 | #define I2S_RX_DESC_IFF_ADDR (0x0054) |
| 63 | #define I2S_RX_DESC_IFF_LEN (0x0058) |
| 64 | #define I2S_RX_DESC_OFF_ADDR (0x005C) |
| 65 | #define I2S_RX_DESC_OFF_LEN (0x0060) |
| 66 | #define I2S_RX_CFG_2 (0x0064) |
| 67 | #define I2S_RX_SLAVE_MODE_SHIFT 13 |
| 68 | #define I2S_RX_SLAVE_MODE_MASK (1 << I2S_RX_SLAVE_MODE_SHIFT) |
| 69 | #define I2S_RX_SLAVE_MODE I2S_RX_SLAVE_MODE_MASK |
| 70 | #define I2S_RX_MASTER_MODE 0 |
| 71 | #define I2S_RX_INTR_MASK 0x0F |
| 72 | |
| 73 | #define I2S_REG_MAX 0x007C |
| 74 | |
| 75 | struct bcm_i2s_priv { |
| 76 | struct device *dev; |
| Kevin Li | 88eb404 | 2020-03-12 15:32:41 -0700 | [diff] [blame] | 77 | struct regmap *regmap_i2s; |
| 78 | struct clk *i2s_clk; |
| 79 | struct snd_pcm_substream *play_substream; |
| 80 | struct snd_pcm_substream *capture_substream; |
| 81 | struct i2s_dma_desc *play_dma_desc; |
| 82 | struct i2s_dma_desc *capture_dma_desc; |
| 83 | }; |
| 84 | |
| 85 | extern int bcm63xx_soc_platform_probe(struct platform_device *pdev, |
| 86 | struct bcm_i2s_priv *i2s_priv); |
| 87 | extern int bcm63xx_soc_platform_remove(struct platform_device *pdev); |
| 88 | |
| 89 | #endif |