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/* SPDX-License-Identifier: GPL-2.0-only */ /* * tegra30_i2s.h - Definitions for Tegra30 I2S driver * * Copyright (c) 2011,2012, NVIDIA CORPORATION. All rights reserved. */ #ifndef __TEGRA30_I2S_H__ #define __TEGRA30_I2S_H__ #include "tegra_pcm.h" /* Register offsets from TEGRA30_I2S*_BASE */ #define TEGRA30_I2S_CTRL 0x0 #define TEGRA30_I2S_TIMING 0x4 #define TEGRA30_I2S_OFFSET 0x08 #define TEGRA30_I2S_CH_CTRL 0x0c #define TEGRA30_I2S_SLOT_CTRL 0x10 #define TEGRA30_I2S_CIF_RX_CTRL 0x14 #define TEGRA30_I2S_CIF_TX_CTRL 0x18 #define TEGRA30_I2S_FLOWCTL 0x1c #define TEGRA30_I2S_TX_STEP 0x20 #define TEGRA30_I2S_FLOW_STATUS 0x24 #define TEGRA30_I2S_FLOW_TOTAL 0x28 #define TEGRA30_I2S_FLOW_OVER 0x2c #define TEGRA30_I2S_FLOW_UNDER 0x30 #define TEGRA30_I2S_LCOEF_1_4_0 0x34 #define TEGRA30_I2S_LCOEF_1_4_1 0x38 #define TEGRA30_I2S_LCOEF_1_4_2 0x3c #define TEGRA30_I2S_LCOEF_1_4_3 0x40 #define TEGRA30_I2S_LCOEF_1_4_4 0x44 #define TEGRA30_I2S_LCOEF_1_4_5 0x48 #define TEGRA30_I2S_LCOEF_2_4_0 0x4c #define TEGRA30_I2S_LCOEF_2_4_1 0x50 #define TEGRA30_I2S_LCOEF_2_4_2 0x54 /* Fields in TEGRA30_I2S_CTRL */ #define TEGRA30_I2S_CTRL_XFER_EN_TX (1 << 31) #define TEGRA30_I2S_CTRL_XFER_EN_RX (1 << 30) #define TEGRA30_I2S_CTRL_CG_EN (1 << 29) #define TEGRA30_I2S_CTRL_SOFT_RESET (1 << 28) #define TEGRA30_I2S_CTRL_TX_FLOWCTL_EN (1 << 27) #define TEGRA30_I2S_CTRL_OBS_SEL_SHIFT 24 #define TEGRA30_I2S_CTRL_OBS_SEL_MASK (7 << TEGRA30_I2S_CTRL_OBS_SEL_SHIFT) #define TEGRA30_I2S_FRAME_FORMAT_LRCK 0 #define TEGRA30_I2S_FRAME_FORMAT_FSYNC 1 #define TEGRA30_I2S_CTRL_FRAME_FORMAT_SHIFT 12 #define TEGRA30_I2S_CTRL_FRAME_FORMAT_MASK (7 << TEGRA30_I2S_CTRL_FRAME_FORMAT_SHIFT) #define TEGRA30_I2S_CTRL_FRAME_FORMAT_LRCK (TEGRA30_I2S_FRAME_FORMAT_LRCK << TEGRA30_I2S_CTRL_FRAME_FORMAT_SHIFT) #define TEGRA30_I2S_CTRL_FRAME_FORMAT_FSYNC (TEGRA30_I2S_FRAME_FORMAT_FSYNC << TEGRA30_I2S_CTRL_FRAME_FORMAT_SHIFT) #define TEGRA30_I2S_CTRL_MASTER_ENABLE (1 << 10) #define TEGRA30_I2S_LRCK_LEFT_LOW 0 #define TEGRA30_I2S_LRCK_RIGHT_LOW 1 #define TEGRA30_I2S_CTRL_LRCK_SHIFT 9 #define TEGRA30_I2S_CTRL_LRCK_MASK (1 << TEGRA30_I2S_CTRL_LRCK_SHIFT) #define TEGRA30_I2S_CTRL_LRCK_L_LOW (TEGRA30_I2S_LRCK_LEFT_LOW << TEGRA30_I2S_CTRL_LRCK_SHIFT) #define TEGRA30_I2S_CTRL_LRCK_R_LOW (TEGRA30_I2S_LRCK_RIGHT_LOW << TEGRA30_I2S_CTRL_LRCK_SHIFT) #define TEGRA30_I2S_CTRL_LPBK_ENABLE (1 << 8) #define TEGRA30_I2S_BIT_CODE_LINEAR 0 #define TEGRA30_I2S_BIT_CODE_ULAW 1 #define TEGRA30_I2S_BIT_CODE_ALAW 2 #define TEGRA30_I2S_CTRL_BIT_CODE_SHIFT 4 #define TEGRA30_I2S_CTRL_BIT_CODE_MASK (3 << TEGRA30_I2S_CTRL_BIT_CODE_SHIFT) #define TEGRA30_I2S_CTRL_BIT_CODE_LINEAR (TEGRA30_I2S_BIT_CODE_LINEAR << TEGRA30_I2S_CTRL_BIT_CODE_SHIFT) #define TEGRA30_I2S_CTRL_BIT_CODE_ULAW (TEGRA30_I2S_BIT_CODE_ULAW << TEGRA30_I2S_CTRL_BIT_CODE_SHIFT) #define TEGRA30_I2S_CTRL_BIT_CODE_ALAW (TEGRA30_I2S_BIT_CODE_ALAW << TEGRA30_I2S_CTRL_BIT_CODE_SHIFT) #define TEGRA30_I2S_BITS_8 1 #define TEGRA30_I2S_BITS_12 2 #define TEGRA30_I2S_BITS_16 3 #define TEGRA30_I2S_BITS_20 4 #define TEGRA30_I2S_BITS_24 5 #define TEGRA30_I2S_BITS_28 6 #define TEGRA30_I2S_BITS_32 7 /* Sample container size; see {RX,TX}_MASK field in CH_CTRL below */ #define TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT 0 #define TEGRA30_I2S_CTRL_BIT_SIZE_MASK (7 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) #define TEGRA30_I2S_CTRL_BIT_SIZE_8 (TEGRA30_I2S_BITS_8 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) #define TEGRA30_I2S_CTRL_BIT_SIZE_12 (TEGRA30_I2S_BITS_12 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) #define TEGRA30_I2S_CTRL_BIT_SIZE_16 (TEGRA30_I2S_BITS_16 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) #define TEGRA30_I2S_CTRL_BIT_SIZE_20 (TEGRA30_I2S_BITS_20 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) #define TEGRA30_I2S_CTRL_BIT_SIZE_24 (TEGRA30_I2S_BITS_24 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) #define TEGRA30_I2S_CTRL_BIT_SIZE_28 (TEGRA30_I2S_BITS_28 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) #define TEGRA30_I2S_CTRL_BIT_SIZE_32 (TEGRA30_I2S_BITS_32 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) /* Fields in TEGRA30_I2S_TIMING */ #define TEGRA30_I2S_TIMING_NON_SYM_ENABLE (1 << 12) #define TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT 0 #define TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US 0x7ff #define TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_MASK (TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US << TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT) /* Fields in TEGRA30_I2S_OFFSET */ #define TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_SHIFT 16 #define TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_MASK_US 0x7ff #define TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_MASK (TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_MASK_US << TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_SHIFT) #define TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_SHIFT 0 #define TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_MASK_US 0x7ff #define TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_MASK (TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_MASK_US << TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_SHIFT) /* Fields in TEGRA30_I2S_CH_CTRL */ /* (FSYNC width - 1) in bit clocks */ #define TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_SHIFT 24 #define TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_MASK_US 0xff #define TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_MASK (TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_MASK_US << TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_SHIFT) #define TEGRA30_I2S_HIGHZ_NO 0 #define TEGRA30_I2S_HIGHZ_YES 1 #define TEGRA30_I2S_HIGHZ_ON_HALF_BIT_CLK 2 #define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT 12 #define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_MASK (3 << TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT) #define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_NO (TEGRA30_I2S_HIGHZ_NO << TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT) #define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_YES (TEGRA30_I2S_HIGHZ_YES << TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT) #define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_ON_HALF_BIT_CLK (TEGRA30_I2S_HIGHZ_ON_HALF_BIT_CLK << TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT) #define TEGRA30_I2S_MSB_FIRST 0 #define TEGRA30_I2S_LSB_FIRST 1 #define TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_SHIFT 10 #define TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_MASK (1 << TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_SHIFT) #define TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_MSB_FIRST (TEGRA30_I2S_MSB_FIRST << TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_SHIFT) #define TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_LSB_FIRST (TEGRA30_I2S_LSB_FIRST << TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_SHIFT) #define TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_SHIFT 9 #define TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_MASK (1 << TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_SHIFT) #define TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_MSB_FIRST (TEGRA30_I2S_MSB_FIRST << TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_SHIFT) #define TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_LSB_FIRST (TEGRA30_I2S_LSB_FIRST << TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_SHIFT) #define TEGRA30_I2S_POS_EDGE 0 #define TEGRA30_I2S_NEG_EDGE 1 #define TEGRA30_I2S_CH_CTRL_EGDE_CTRL_SHIFT 8 #define TEGRA30_I2S_CH_CTRL_EGDE_CTRL_MASK (1 << TEGRA30_I2S_CH_CTRL_EGDE_CTRL_SHIFT) #define TEGRA30_I2S_CH_CTRL_EGDE_CTRL_POS_EDGE (TEGRA30_I2S_POS_EDGE << TEGRA30_I2S_CH_CTRL_EGDE_CTRL_SHIFT) #define TEGRA30_I2S_CH_CTRL_EGDE_CTRL_NEG_EDGE (TEGRA30_I2S_NEG_EDGE << TEGRA30_I2S_CH_CTRL_EGDE_CTRL_SHIFT) /* Sample size is # bits from BIT_SIZE minus this field */ #define TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_SHIFT 4 #define TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_MASK_US 7 #define TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_MASK (TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_MASK_US << TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_SHIFT) #define TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_SHIFT 0 #define TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_MASK_US 7 #define TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_MASK (TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_MASK_US << TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_SHIFT) /* Fields in TEGRA30_I2S_SLOT_CTRL */ /* Number of slots in frame, minus 1 */ #define TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_SHIFT 16 #define TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_MASK_US 7 #define TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_MASK (TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_MASK_US << TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_SHIFT) /* TDM mode slot enable bitmask */ #define TEGRA30_I2S_SLOT_CTRL_RX_SLOT_ENABLES_SHIFT 8 #define TEGRA30_I2S_SLOT_CTRL_RX_SLOT_ENABLES_MASK (0xff << TEGRA30_I2S_SLOT_CTRL_RX_SLOT_ENABLES_SHIFT) #define TEGRA30_I2S_SLOT_CTRL_TX_SLOT_ENABLES_SHIFT 0 #define TEGRA30_I2S_SLOT_CTRL_TX_SLOT_ENABLES_MASK (0xff << TEGRA30_I2S_SLOT_CTRL_TX_SLOT_ENABLES_SHIFT) /* Fields in TEGRA30_I2S_CIF_RX_CTRL */ /* Uses field from TEGRA30_AUDIOCIF_CTRL_* in tegra30_ahub.h */ /* Fields in TEGRA30_I2S_CIF_TX_CTRL */ /* Uses field from TEGRA30_AUDIOCIF_CTRL_* in tegra30_ahub.h */ /* Fields in TEGRA30_I2S_FLOWCTL */ #define TEGRA30_I2S_FILTER_LINEAR 0 #define TEGRA30_I2S_FILTER_QUAD 1 #define TEGRA30_I2S_FLOWCTL_FILTER_SHIFT 31 #define TEGRA30_I2S_FLOWCTL_FILTER_MASK (1 << TEGRA30_I2S_FLOWCTL_FILTER_SHIFT) #define TEGRA30_I2S_FLOWCTL_FILTER_LINEAR (TEGRA30_I2S_FILTER_LINEAR << TEGRA30_I2S_FLOWCTL_FILTER_SHIFT) #define TEGRA30_I2S_FLOWCTL_FILTER_QUAD (TEGRA30_I2S_FILTER_QUAD << TEGRA30_I2S_FLOWCTL_FILTER_SHIFT) /* Fields in TEGRA30_I2S_TX_STEP */ #define TEGRA30_I2S_TX_STEP_SHIFT 0 #define TEGRA30_I2S_TX_STEP_MASK_US 0xffff #define TEGRA30_I2S_TX_STEP_MASK (TEGRA30_I2S_TX_STEP_MASK_US << TEGRA30_I2S_TX_STEP_SHIFT) /* Fields in TEGRA30_I2S_FLOW_STATUS */ #define TEGRA30_I2S_FLOW_STATUS_UNDERFLOW (1 << 31) #define TEGRA30_I2S_FLOW_STATUS_OVERFLOW (1 << 30) #define TEGRA30_I2S_FLOW_STATUS_MONITOR_INT_EN (1 << 4) #define TEGRA30_I2S_FLOW_STATUS_COUNTER_CLR (1 << 3) #define TEGRA30_I2S_FLOW_STATUS_MONITOR_CLR (1 << 2) #define TEGRA30_I2S_FLOW_STATUS_COUNTER_EN (1 << 1) #define TEGRA30_I2S_FLOW_STATUS_MONITOR_EN (1 << 0) /* * There are no fields in TEGRA30_I2S_FLOW_TOTAL, TEGRA30_I2S_FLOW_OVER, * TEGRA30_I2S_FLOW_UNDER; they are counters taking the whole register. */ /* Fields in TEGRA30_I2S_LCOEF_* */ #define TEGRA30_I2S_LCOEF_COEF_SHIFT 0 #define TEGRA30_I2S_LCOEF_COEF_MASK_US 0xffff #define TEGRA30_I2S_LCOEF_COEF_MASK (TEGRA30_I2S_LCOEF_COEF_MASK_US << TEGRA30_I2S_LCOEF_COEF_SHIFT) struct tegra30_i2s_soc_data { void (*set_audio_cif)(struct regmap *regmap, unsigned int reg, struct tegra30_ahub_cif_conf *conf); }; struct tegra30_i2s { const struct tegra30_i2s_soc_data *soc_data; struct snd_soc_dai_driver dai; int cif_id; struct clk *clk_i2s; enum tegra30_ahub_txcif capture_i2s_cif; enum tegra30_ahub_rxcif capture_fifo_cif; char capture_dma_chan[8]; struct snd_dmaengine_dai_dma_data capture_dma_data; enum tegra30_ahub_rxcif playback_i2s_cif; enum tegra30_ahub_txcif playback_fifo_cif; char playback_dma_chan[8]; struct snd_dmaengine_dai_dma_data playback_dma_data; struct regmap *regmap; struct snd_dmaengine_pcm_config dma_config; }; #endif