sound/soc/tegra/tegra20_ac97.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * tegra20_ac97.h - Definitions for the Tegra20 AC97 controller driver
   4  *
   5  * Copyright (c) 2012 Lucas Stach <dev@lynxeye.de>
   6  *
   7  * Partly based on code copyright/by:
   8  *
   9  * Copyright (c) 2011,2012 Toradex Inc.
  10  */
  11
  12 #ifndef __TEGRA20_AC97_H__
  13 #define __TEGRA20_AC97_H__
  14
  15 #include "tegra_pcm.h"
  16
  17 #define TEGRA20_AC97_CTRL                               0x00
  18 #define TEGRA20_AC97_CMD                                0x04
  19 #define TEGRA20_AC97_STATUS1                            0x08
  20 /* ... */
  21 #define TEGRA20_AC97_FIFO1_SCR                          0x1c
  22 /* ... */
  23 #define TEGRA20_AC97_FIFO_TX1                           0x40
  24 #define TEGRA20_AC97_FIFO_RX1                           0x80
  25
  26 /* TEGRA20_AC97_CTRL */
  27 #define TEGRA20_AC97_CTRL_STM2_EN                       (1 << 16)
  28 #define TEGRA20_AC97_CTRL_DOUBLE_SAMPLING_EN            (1 << 11)
  29 #define TEGRA20_AC97_CTRL_IO_CNTRL_EN                   (1 << 10)
  30 #define TEGRA20_AC97_CTRL_HSET_DAC_EN                   (1 << 9)
  31 #define TEGRA20_AC97_CTRL_LINE2_DAC_EN                  (1 << 8)
  32 #define TEGRA20_AC97_CTRL_PCM_LFE_EN                    (1 << 7)
  33 #define TEGRA20_AC97_CTRL_PCM_SUR_EN                    (1 << 6)
  34 #define TEGRA20_AC97_CTRL_PCM_CEN_DAC_EN                (1 << 5)
  35 #define TEGRA20_AC97_CTRL_LINE1_DAC_EN                  (1 << 4)
  36 #define TEGRA20_AC97_CTRL_PCM_DAC_EN                    (1 << 3)
  37 #define TEGRA20_AC97_CTRL_COLD_RESET                    (1 << 2)
  38 #define TEGRA20_AC97_CTRL_WARM_RESET                    (1 << 1)
  39 #define TEGRA20_AC97_CTRL_STM_EN                        (1 << 0)
  40
  41 /* TEGRA20_AC97_CMD */
  42 #define TEGRA20_AC97_CMD_CMD_ADDR_SHIFT                 24
  43 #define TEGRA20_AC97_CMD_CMD_ADDR_MASK                  (0xff << TEGRA20_AC97_CMD_CMD_ADDR_SHIFT)
  44 #define TEGRA20_AC97_CMD_CMD_DATA_SHIFT                 8
  45 #define TEGRA20_AC97_CMD_CMD_DATA_MASK                  (0xffff << TEGRA20_AC97_CMD_CMD_DATA_SHIFT)
  46 #define TEGRA20_AC97_CMD_CMD_ID_SHIFT                   2
  47 #define TEGRA20_AC97_CMD_CMD_ID_MASK                    (0x3 << TEGRA20_AC97_CMD_CMD_ID_SHIFT)
  48 #define TEGRA20_AC97_CMD_BUSY                           (1 << 0)
  49
  50 /* TEGRA20_AC97_STATUS1 */
  51 #define TEGRA20_AC97_STATUS1_STA_ADDR1_SHIFT            24
  52 #define TEGRA20_AC97_STATUS1_STA_ADDR1_MASK             (0xff << TEGRA20_AC97_STATUS1_STA_ADDR1_SHIFT)
  53 #define TEGRA20_AC97_STATUS1_STA_DATA1_SHIFT            8
  54 #define TEGRA20_AC97_STATUS1_STA_DATA1_MASK             (0xffff << TEGRA20_AC97_STATUS1_STA_DATA1_SHIFT)
  55 #define TEGRA20_AC97_STATUS1_STA_VALID1                 (1 << 2)
  56 #define TEGRA20_AC97_STATUS1_STANDBY1                   (1 << 1)
  57 #define TEGRA20_AC97_STATUS1_CODEC1_RDY                 (1 << 0)
  58
  59 /* TEGRA20_AC97_FIFO1_SCR */
  60 #define TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_SHIFT          27
  61 #define TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_MASK           (0x1f << TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_SHIFT)
  62 #define TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_SHIFT           22
  63 #define TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_MASK            (0x1f << TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_SHIFT)
  64 #define TEGRA20_AC97_FIFO_SCR_REC_OVERRUN_INT_STA       (1 << 19)
  65 #define TEGRA20_AC97_FIFO_SCR_PB_UNDERRUN_INT_STA       (1 << 18)
  66 #define TEGRA20_AC97_FIFO_SCR_REC_FORCE_MT              (1 << 17)
  67 #define TEGRA20_AC97_FIFO_SCR_PB_FORCE_MT               (1 << 16)
  68 #define TEGRA20_AC97_FIFO_SCR_REC_FULL_EN               (1 << 15)
  69 #define TEGRA20_AC97_FIFO_SCR_REC_3QRT_FULL_EN          (1 << 14)
  70 #define TEGRA20_AC97_FIFO_SCR_REC_QRT_FULL_EN           (1 << 13)
  71 #define TEGRA20_AC97_FIFO_SCR_REC_EMPTY_EN              (1 << 12)
  72 #define TEGRA20_AC97_FIFO_SCR_PB_NOT_FULL_EN            (1 << 11)
  73 #define TEGRA20_AC97_FIFO_SCR_PB_QRT_MT_EN              (1 << 10)
  74 #define TEGRA20_AC97_FIFO_SCR_PB_3QRT_MT_EN             (1 << 9)
  75 #define TEGRA20_AC97_FIFO_SCR_PB_EMPTY_MT_EN            (1 << 8)
  76
  77 struct tegra20_ac97 {
  78         struct clk *clk_ac97;
  79         struct snd_dmaengine_dai_dma_data capture_dma_data;
  80         struct snd_dmaengine_dai_dma_data playback_dma_data;
  81         struct reset_control *reset;
  82         struct regmap *regmap;
  83         int reset_gpio;
  84         int sync_gpio;
  85 };
  86 #endif /* __TEGRA20_AC97_H__ */