sound/soc/bcm/bcm63xx-i2s.h

   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;
  77         struct resource *r_irq;
  78         struct regmap *regmap_i2s;
  79         struct clk *i2s_clk;
  80         struct snd_pcm_substream        *play_substream;
  81         struct snd_pcm_substream        *capture_substream;
  82         struct i2s_dma_desc *play_dma_desc;
  83         struct i2s_dma_desc *capture_dma_desc;
  84 };
  85
  86 extern int bcm63xx_soc_platform_probe(struct platform_device *pdev,
  87                                       struct bcm_i2s_priv *i2s_priv);
  88 extern int bcm63xx_soc_platform_remove(struct platform_device *pdev);
  89
  90 #endif