sound/soc/tegra/tegra30_i2s.h - maze/linux - Git at Google

 /*
  * tegra30_i2s.h - Definitions for Tegra30 I2S driver
  *
  * Copyright (c) 2011,2012, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
  *
  * This program is distributed in the hope 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.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */

 #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	0x7fff
 #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_SLOT_MASK_US << TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOT_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 {
 	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;
 	struct tegra_pcm_dma_params capture_dma_data;
 	enum tegra30_ahub_rxcif playback_i2s_cif;
 	enum tegra30_ahub_txcif playback_fifo_cif;
 	struct tegra_pcm_dma_params playback_dma_data;
 	struct regmap *regmap;
 	u32 reg_ctrl;
 };

 #endif
	/*
	* tegra30_i2s.h - Definitions for Tegra30 I2S driver
	*
	* Copyright (c) 2011,2012, NVIDIA CORPORATION. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms and conditions of the GNU General Public License,
	* version 2, as published by the Free Software Foundation.
	*
	* This program is distributed in the hope 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.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	*/

	#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 0x7fff
	#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_SLOT_MASK_US << TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOT_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 {
	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;
	struct tegra_pcm_dma_params capture_dma_data;
	enum tegra30_ahub_rxcif playback_i2s_cif;
	enum tegra30_ahub_txcif playback_fifo_cif;
	struct tegra_pcm_dma_params playback_dma_data;
	struct regmap *regmap;
	u32 reg_ctrl;
	};

	#endif