/* SPDX-License-Identifier: GPL-2.0-only */ /* * tegra20_i2s.h - Definitions for Tegra20 I2S driver * * Author: Stephen Warren <swarren@nvidia.com> * Copyright (C) 2010,2012 - NVIDIA, Inc. * * Based on code copyright/by: * * Copyright (c) 2009-2010, NVIDIA Corporation. * Scott Peterson <speterson@nvidia.com> * * Copyright (C) 2010 Google, Inc. * Iliyan Malchev <malchev@google.com> */ #ifndef __TEGRA20_I2S_H__ #define __TEGRA20_I2S_H__ #include "tegra_pcm.h" /* Register offsets from TEGRA20_I2S1_BASE and TEGRA20_I2S2_BASE */ #define TEGRA20_I2S_CTRL 0x00 #define TEGRA20_I2S_STATUS 0x04 #define TEGRA20_I2S_TIMING 0x08 #define TEGRA20_I2S_FIFO_SCR 0x0c #define TEGRA20_I2S_PCM_CTRL 0x10 #define TEGRA20_I2S_NW_CTRL 0x14 #define TEGRA20_I2S_TDM_CTRL 0x20 #define TEGRA20_I2S_TDM_TX_RX_CTRL 0x24 #define TEGRA20_I2S_FIFO1 0x40 #define TEGRA20_I2S_FIFO2 0x80 /* Fields in TEGRA20_I2S_CTRL */ #define TEGRA20_I2S_CTRL_FIFO2_TX_ENABLE (1 << 30) #define TEGRA20_I2S_CTRL_FIFO1_ENABLE (1 << 29) #define TEGRA20_I2S_CTRL_FIFO2_ENABLE (1 << 28) #define TEGRA20_I2S_CTRL_FIFO1_RX_ENABLE (1 << 27) #define TEGRA20_I2S_CTRL_FIFO_LPBK_ENABLE (1 << 26) #define TEGRA20_I2S_CTRL_MASTER_ENABLE (1 << 25) #define TEGRA20_I2S_LRCK_LEFT_LOW 0 #define TEGRA20_I2S_LRCK_RIGHT_LOW 1 #define TEGRA20_I2S_CTRL_LRCK_SHIFT 24 #define TEGRA20_I2S_CTRL_LRCK_MASK (1 << TEGRA20_I2S_CTRL_LRCK_SHIFT) #define TEGRA20_I2S_CTRL_LRCK_L_LOW (TEGRA20_I2S_LRCK_LEFT_LOW << TEGRA20_I2S_CTRL_LRCK_SHIFT) #define TEGRA20_I2S_CTRL_LRCK_R_LOW (TEGRA20_I2S_LRCK_RIGHT_LOW << TEGRA20_I2S_CTRL_LRCK_SHIFT) #define TEGRA20_I2S_BIT_FORMAT_I2S 0 #define TEGRA20_I2S_BIT_FORMAT_RJM 1 #define TEGRA20_I2S_BIT_FORMAT_LJM 2 #define TEGRA20_I2S_BIT_FORMAT_DSP 3 #define TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT 10 #define TEGRA20_I2S_CTRL_BIT_FORMAT_MASK (3 << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT) #define TEGRA20_I2S_CTRL_BIT_FORMAT_I2S (TEGRA20_I2S_BIT_FORMAT_I2S << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT) #define TEGRA20_I2S_CTRL_BIT_FORMAT_RJM (TEGRA20_I2S_BIT_FORMAT_RJM << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT) #define TEGRA20_I2S_CTRL_BIT_FORMAT_LJM (TEGRA20_I2S_BIT_FORMAT_LJM << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT) #define TEGRA20_I2S_CTRL_BIT_FORMAT_DSP (TEGRA20_I2S_BIT_FORMAT_DSP << TEGRA20_I2S_CTRL_BIT_FORMAT_SHIFT) #define TEGRA20_I2S_BIT_SIZE_16 0 #define TEGRA20_I2S_BIT_SIZE_20 1 #define TEGRA20_I2S_BIT_SIZE_24 2 #define TEGRA20_I2S_BIT_SIZE_32 3 #define TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT 8 #define TEGRA20_I2S_CTRL_BIT_SIZE_MASK (3 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT) #define TEGRA20_I2S_CTRL_BIT_SIZE_16 (TEGRA20_I2S_BIT_SIZE_16 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT) #define TEGRA20_I2S_CTRL_BIT_SIZE_20 (TEGRA20_I2S_BIT_SIZE_20 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT) #define TEGRA20_I2S_CTRL_BIT_SIZE_24 (TEGRA20_I2S_BIT_SIZE_24 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT) #define TEGRA20_I2S_CTRL_BIT_SIZE_32 (TEGRA20_I2S_BIT_SIZE_32 << TEGRA20_I2S_CTRL_BIT_SIZE_SHIFT) #define TEGRA20_I2S_FIFO_16_LSB 0 #define TEGRA20_I2S_FIFO_20_LSB 1 #define TEGRA20_I2S_FIFO_24_LSB 2 #define TEGRA20_I2S_FIFO_32 3 #define TEGRA20_I2S_FIFO_PACKED 7 #define TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT 4 #define TEGRA20_I2S_CTRL_FIFO_FORMAT_MASK (7 << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT) #define TEGRA20_I2S_CTRL_FIFO_FORMAT_16_LSB (TEGRA20_I2S_FIFO_16_LSB << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT) #define TEGRA20_I2S_CTRL_FIFO_FORMAT_20_LSB (TEGRA20_I2S_FIFO_20_LSB << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT) #define TEGRA20_I2S_CTRL_FIFO_FORMAT_24_LSB (TEGRA20_I2S_FIFO_24_LSB << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT) #define TEGRA20_I2S_CTRL_FIFO_FORMAT_32 (TEGRA20_I2S_FIFO_32 << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT) #define TEGRA20_I2S_CTRL_FIFO_FORMAT_PACKED (TEGRA20_I2S_FIFO_PACKED << TEGRA20_I2S_CTRL_FIFO_FORMAT_SHIFT) #define TEGRA20_I2S_CTRL_IE_FIFO1_ERR (1 << 3) #define TEGRA20_I2S_CTRL_IE_FIFO2_ERR (1 << 2) #define TEGRA20_I2S_CTRL_QE_FIFO1 (1 << 1) #define TEGRA20_I2S_CTRL_QE_FIFO2 (1 << 0) /* Fields in TEGRA20_I2S_STATUS */ #define TEGRA20_I2S_STATUS_FIFO1_RDY (1 << 31) #define TEGRA20_I2S_STATUS_FIFO2_RDY (1 << 30) #define TEGRA20_I2S_STATUS_FIFO1_BSY (1 << 29) #define TEGRA20_I2S_STATUS_FIFO2_BSY (1 << 28) #define TEGRA20_I2S_STATUS_FIFO1_ERR (1 << 3) #define TEGRA20_I2S_STATUS_FIFO2_ERR (1 << 2) #define TEGRA20_I2S_STATUS_QS_FIFO1 (1 << 1) #define TEGRA20_I2S_STATUS_QS_FIFO2 (1 << 0) /* Fields in TEGRA20_I2S_TIMING */ #define TEGRA20_I2S_TIMING_NON_SYM_ENABLE (1 << 12) #define TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT 0 #define TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US 0x7ff #define TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_MASK (TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US << TEGRA20_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT) /* Fields in TEGRA20_I2S_FIFO_SCR */ #define TEGRA20_I2S_FIFO_SCR_FIFO2_FULL_EMPTY_COUNT_SHIFT 24 #define TEGRA20_I2S_FIFO_SCR_FIFO1_FULL_EMPTY_COUNT_SHIFT 16 #define TEGRA20_I2S_FIFO_SCR_FIFO_FULL_EMPTY_COUNT_MASK 0x3f #define TEGRA20_I2S_FIFO_SCR_FIFO2_CLR (1 << 12) #define TEGRA20_I2S_FIFO_SCR_FIFO1_CLR (1 << 8) #define TEGRA20_I2S_FIFO_ATN_LVL_ONE_SLOT 0 #define TEGRA20_I2S_FIFO_ATN_LVL_FOUR_SLOTS 1 #define TEGRA20_I2S_FIFO_ATN_LVL_EIGHT_SLOTS 2 #define TEGRA20_I2S_FIFO_ATN_LVL_TWELVE_SLOTS 3 #define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT 4 #define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_MASK (3 << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) #define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_ONE_SLOT (TEGRA20_I2S_FIFO_ATN_LVL_ONE_SLOT << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) #define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_FOUR_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_FOUR_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) #define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_EIGHT_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_EIGHT_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) #define TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_TWELVE_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_TWELVE_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO2_ATN_LVL_SHIFT) #define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT 0 #define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_MASK (3 << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) #define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_ONE_SLOT (TEGRA20_I2S_FIFO_ATN_LVL_ONE_SLOT << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) #define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_FOUR_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_FOUR_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) #define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_EIGHT_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_EIGHT_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) #define TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_TWELVE_SLOTS (TEGRA20_I2S_FIFO_ATN_LVL_TWELVE_SLOTS << TEGRA20_I2S_FIFO_SCR_FIFO1_ATN_LVL_SHIFT) struct tegra20_i2s { struct snd_soc_dai_driver dai; struct clk *clk_i2s; struct snd_dmaengine_dai_dma_data capture_dma_data; struct snd_dmaengine_dai_dma_data playback_dma_data; struct regmap *regmap; struct reset_control *reset; }; #endif
