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kernel/linux-rt-4.4.41/sound/soc/tegra/tegra20_ac97.h 3.69 KB
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  /*
   * tegra20_ac97.h - Definitions for the Tegra20 AC97 controller driver
   *
   * Copyright (c) 2012 Lucas Stach <dev@lynxeye.de>
   *
   * Partly based on code copyright/by:
   *
   * Copyright (c) 2011,2012 Toradex Inc.
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * version 2 as published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * General Public License for more details.
   *
   */
  
  #ifndef __TEGRA20_AC97_H__
  #define __TEGRA20_AC97_H__
  
  #include "tegra_pcm.h"
  
  #define TEGRA20_AC97_CTRL				0x00
  #define TEGRA20_AC97_CMD				0x04
  #define TEGRA20_AC97_STATUS1				0x08
  /* ... */
  #define TEGRA20_AC97_FIFO1_SCR				0x1c
  /* ... */
  #define TEGRA20_AC97_FIFO_TX1				0x40
  #define TEGRA20_AC97_FIFO_RX1				0x80
  
  /* TEGRA20_AC97_CTRL */
  #define TEGRA20_AC97_CTRL_STM2_EN			(1 << 16)
  #define TEGRA20_AC97_CTRL_DOUBLE_SAMPLING_EN		(1 << 11)
  #define TEGRA20_AC97_CTRL_IO_CNTRL_EN			(1 << 10)
  #define TEGRA20_AC97_CTRL_HSET_DAC_EN			(1 << 9)
  #define TEGRA20_AC97_CTRL_LINE2_DAC_EN			(1 << 8)
  #define TEGRA20_AC97_CTRL_PCM_LFE_EN			(1 << 7)
  #define TEGRA20_AC97_CTRL_PCM_SUR_EN			(1 << 6)
  #define TEGRA20_AC97_CTRL_PCM_CEN_DAC_EN		(1 << 5)
  #define TEGRA20_AC97_CTRL_LINE1_DAC_EN			(1 << 4)
  #define TEGRA20_AC97_CTRL_PCM_DAC_EN			(1 << 3)
  #define TEGRA20_AC97_CTRL_COLD_RESET			(1 << 2)
  #define TEGRA20_AC97_CTRL_WARM_RESET			(1 << 1)
  #define TEGRA20_AC97_CTRL_STM_EN			(1 << 0)
  
  /* TEGRA20_AC97_CMD */
  #define TEGRA20_AC97_CMD_CMD_ADDR_SHIFT			24
  #define TEGRA20_AC97_CMD_CMD_ADDR_MASK			(0xff << TEGRA20_AC97_CMD_CMD_ADDR_SHIFT)
  #define TEGRA20_AC97_CMD_CMD_DATA_SHIFT			8
  #define TEGRA20_AC97_CMD_CMD_DATA_MASK			(0xffff << TEGRA20_AC97_CMD_CMD_DATA_SHIFT)
  #define TEGRA20_AC97_CMD_CMD_ID_SHIFT			2
  #define TEGRA20_AC97_CMD_CMD_ID_MASK			(0x3 << TEGRA20_AC97_CMD_CMD_ID_SHIFT)
  #define TEGRA20_AC97_CMD_BUSY				(1 << 0)
  
  /* TEGRA20_AC97_STATUS1 */
  #define TEGRA20_AC97_STATUS1_STA_ADDR1_SHIFT		24
  #define TEGRA20_AC97_STATUS1_STA_ADDR1_MASK		(0xff << TEGRA20_AC97_STATUS1_STA_ADDR1_SHIFT)
  #define TEGRA20_AC97_STATUS1_STA_DATA1_SHIFT		8
  #define TEGRA20_AC97_STATUS1_STA_DATA1_MASK		(0xffff << TEGRA20_AC97_STATUS1_STA_DATA1_SHIFT)
  #define TEGRA20_AC97_STATUS1_STA_VALID1			(1 << 2)
  #define TEGRA20_AC97_STATUS1_STANDBY1			(1 << 1)
  #define TEGRA20_AC97_STATUS1_CODEC1_RDY			(1 << 0)
  
  /* TEGRA20_AC97_FIFO1_SCR */
  #define TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_SHIFT		27
  #define TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_MASK		(0x1f << TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_SHIFT)
  #define TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_SHIFT		22
  #define TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_MASK		(0x1f << TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_SHIFT)
  #define TEGRA20_AC97_FIFO_SCR_REC_OVERRUN_INT_STA	(1 << 19)
  #define TEGRA20_AC97_FIFO_SCR_PB_UNDERRUN_INT_STA	(1 << 18)
  #define TEGRA20_AC97_FIFO_SCR_REC_FORCE_MT		(1 << 17)
  #define TEGRA20_AC97_FIFO_SCR_PB_FORCE_MT		(1 << 16)
  #define TEGRA20_AC97_FIFO_SCR_REC_FULL_EN		(1 << 15)
  #define TEGRA20_AC97_FIFO_SCR_REC_3QRT_FULL_EN		(1 << 14)
  #define TEGRA20_AC97_FIFO_SCR_REC_QRT_FULL_EN		(1 << 13)
  #define TEGRA20_AC97_FIFO_SCR_REC_EMPTY_EN		(1 << 12)
  #define TEGRA20_AC97_FIFO_SCR_PB_NOT_FULL_EN		(1 << 11)
  #define TEGRA20_AC97_FIFO_SCR_PB_QRT_MT_EN		(1 << 10)
  #define TEGRA20_AC97_FIFO_SCR_PB_3QRT_MT_EN		(1 << 9)
  #define TEGRA20_AC97_FIFO_SCR_PB_EMPTY_MT_EN		(1 << 8)
  
  struct tegra20_ac97 {
  	struct clk *clk_ac97;
  	struct snd_dmaengine_dai_dma_data capture_dma_data;
  	struct snd_dmaengine_dai_dma_data playback_dma_data;
  	struct regmap *regmap;
  	int reset_gpio;
  	int sync_gpio;
  };
  #endif /* __TEGRA20_AC97_H__ */