treewide: remove redundant IS_ERR() before error code check

[linux/fpc-iii.git] / sound / soc / tegra / tegra20_spdif.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * tegra20_spdif.h - Definitions for Tegra20 SPDIF driver
 *
 * Author: Stephen Warren <swarren@nvidia.com>
 * Copyright (C) 2011 - NVIDIA, Inc.
 *
 * Based on code copyright/by:
 * Copyright (c) 2008-2009, NVIDIA Corporation
 */

#ifndef __TEGRA20_SPDIF_H__
#define __TEGRA20_SPDIF_H__

#include "tegra_pcm.h"

/* Offsets from TEGRA20_SPDIF_BASE */

#define TEGRA20_SPDIF_CTRL                                      0x0
#define TEGRA20_SPDIF_STATUS                                    0x4
#define TEGRA20_SPDIF_STROBE_CTRL                               0x8
#define TEGRA20_SPDIF_DATA_FIFO_CSR                             0x0C
#define TEGRA20_SPDIF_DATA_OUT                                  0x40
#define TEGRA20_SPDIF_DATA_IN                                   0x80
#define TEGRA20_SPDIF_CH_STA_RX_A                               0x100
#define TEGRA20_SPDIF_CH_STA_RX_B                               0x104
#define TEGRA20_SPDIF_CH_STA_RX_C                               0x108
#define TEGRA20_SPDIF_CH_STA_RX_D                               0x10C
#define TEGRA20_SPDIF_CH_STA_RX_E                               0x110
#define TEGRA20_SPDIF_CH_STA_RX_F                               0x114
#define TEGRA20_SPDIF_CH_STA_TX_A                               0x140
#define TEGRA20_SPDIF_CH_STA_TX_B                               0x144
#define TEGRA20_SPDIF_CH_STA_TX_C                               0x148
#define TEGRA20_SPDIF_CH_STA_TX_D                               0x14C
#define TEGRA20_SPDIF_CH_STA_TX_E                               0x150
#define TEGRA20_SPDIF_CH_STA_TX_F                               0x154
#define TEGRA20_SPDIF_USR_STA_RX_A                              0x180
#define TEGRA20_SPDIF_USR_DAT_TX_A                              0x1C0

/* Fields in TEGRA20_SPDIF_CTRL */

/* Start capturing from 0=right, 1=left channel */
#define TEGRA20_SPDIF_CTRL_CAP_LC                               (1 << 30)

/* SPDIF receiver(RX) enable */
#define TEGRA20_SPDIF_CTRL_RX_EN                                (1 << 29)

/* SPDIF Transmitter(TX) enable */
#define TEGRA20_SPDIF_CTRL_TX_EN                                (1 << 28)

/* Transmit Channel status */
#define TEGRA20_SPDIF_CTRL_TC_EN                                (1 << 27)

/* Transmit user Data */
#define TEGRA20_SPDIF_CTRL_TU_EN                                (1 << 26)

/* Interrupt on transmit error */
#define TEGRA20_SPDIF_CTRL_IE_TXE                               (1 << 25)

/* Interrupt on receive error */
#define TEGRA20_SPDIF_CTRL_IE_RXE                               (1 << 24)

/* Interrupt on invalid preamble */
#define TEGRA20_SPDIF_CTRL_IE_P                                 (1 << 23)

/* Interrupt on "B" preamble */
#define TEGRA20_SPDIF_CTRL_IE_B                                 (1 << 22)

/* Interrupt when block of channel status received */
#define TEGRA20_SPDIF_CTRL_IE_C                                 (1 << 21)

/* Interrupt when a valid information unit (IU) is received */
#define TEGRA20_SPDIF_CTRL_IE_U                                 (1 << 20)

/* Interrupt when RX user FIFO attention level is reached */
#define TEGRA20_SPDIF_CTRL_QE_RU                                (1 << 19)

/* Interrupt when TX user FIFO attention level is reached */
#define TEGRA20_SPDIF_CTRL_QE_TU                                (1 << 18)

/* Interrupt when RX data FIFO attention level is reached */
#define TEGRA20_SPDIF_CTRL_QE_RX                                (1 << 17)

/* Interrupt when TX data FIFO attention level is reached */
#define TEGRA20_SPDIF_CTRL_QE_TX                                (1 << 16)

/* Loopback test mode enable */
#define TEGRA20_SPDIF_CTRL_LBK_EN                               (1 << 15)

/*
 * Pack data mode:
 * 0 = Single data (16 bit needs to be  padded to match the
 *     interface data bit size).
 * 1 = Packeted left/right channel data into a single word.
 */
#define TEGRA20_SPDIF_CTRL_PACK                                 (1 << 14)

/*
 * 00 = 16bit data
 * 01 = 20bit data
 * 10 = 24bit data
 * 11 = raw data
 */
#define TEGRA20_SPDIF_BIT_MODE_16BIT                            0
#define TEGRA20_SPDIF_BIT_MODE_20BIT                            1
#define TEGRA20_SPDIF_BIT_MODE_24BIT                            2
#define TEGRA20_SPDIF_BIT_MODE_RAW                              3

#define TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT                       12
#define TEGRA20_SPDIF_CTRL_BIT_MODE_MASK                        (3                            << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT)
#define TEGRA20_SPDIF_CTRL_BIT_MODE_16BIT                       (TEGRA20_SPDIF_BIT_MODE_16BIT << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT)
#define TEGRA20_SPDIF_CTRL_BIT_MODE_20BIT                       (TEGRA20_SPDIF_BIT_MODE_20BIT << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT)
#define TEGRA20_SPDIF_CTRL_BIT_MODE_24BIT                       (TEGRA20_SPDIF_BIT_MODE_24BIT << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT)
#define TEGRA20_SPDIF_CTRL_BIT_MODE_RAW                         (TEGRA20_SPDIF_BIT_MODE_RAW   << TEGRA20_SPDIF_CTRL_BIT_MODE_SHIFT)

/* Fields in TEGRA20_SPDIF_STATUS */

/*
 * Note: IS_P, IS_B, IS_C, and IS_U are sticky bits. Software must
 * write a 1 to the corresponding bit location to clear the status.
 */

/*
 * Receiver(RX) shifter is busy receiving data.
 * This bit is asserted when the receiver first locked onto the
 * preamble of the data stream after RX_EN is asserted. This bit is
 * deasserted when either,
 * (a) the end of a frame is reached after RX_EN is deeasserted, or
 * (b) the SPDIF data stream becomes inactive.
 */
#define TEGRA20_SPDIF_STATUS_RX_BSY                             (1 << 29)

/*
 * Transmitter(TX) shifter is busy transmitting data.
 * This bit is asserted when TX_EN is asserted.
 * This bit is deasserted when the end of a frame is reached after
 * TX_EN is deasserted.
 */
#define TEGRA20_SPDIF_STATUS_TX_BSY                             (1 << 28)

/*
 * TX is busy shifting out channel status.
 * This bit is asserted when both TX_EN and TC_EN are asserted and
 * data from CH_STA_TX_A register is loaded into the internal shifter.
 * This bit is deasserted when either,
 * (a) the end of a frame is reached after TX_EN is deasserted, or
 * (b) CH_STA_TX_F register is loaded into the internal shifter.
 */
#define TEGRA20_SPDIF_STATUS_TC_BSY                             (1 << 27)

/*
 * TX User data FIFO busy.
 * This bit is asserted when TX_EN and TXU_EN are asserted and
 * there's data in the TX user FIFO.  This bit is deassert when either,
 * (a) the end of a frame is reached after TX_EN is deasserted, or
 * (b) there's no data left in the TX user FIFO.
 */
#define TEGRA20_SPDIF_STATUS_TU_BSY                             (1 << 26)

/* TX FIFO Underrun error status */
#define TEGRA20_SPDIF_STATUS_TX_ERR                             (1 << 25)

/* RX FIFO Overrun error status */
#define TEGRA20_SPDIF_STATUS_RX_ERR                             (1 << 24)

/* Preamble status: 0=Preamble OK, 1=bad/missing preamble */
#define TEGRA20_SPDIF_STATUS_IS_P                               (1 << 23)

/* B-preamble detection status: 0=not detected, 1=B-preamble detected */
#define TEGRA20_SPDIF_STATUS_IS_B                               (1 << 22)

/*
 * RX channel block data receive status:
 * 0=entire block not recieved yet.
 * 1=received entire block of channel status,
 */
#define TEGRA20_SPDIF_STATUS_IS_C                               (1 << 21)

/* RX User Data Valid flag:  1=valid IU detected, 0 = no IU detected. */
#define TEGRA20_SPDIF_STATUS_IS_U                               (1 << 20)

/*
 * RX User FIFO Status:
 * 1=attention level reached, 0=attention level not reached.
 */
#define TEGRA20_SPDIF_STATUS_QS_RU                              (1 << 19)

/*
 * TX User FIFO Status:
 * 1=attention level reached, 0=attention level not reached.
 */
#define TEGRA20_SPDIF_STATUS_QS_TU                              (1 << 18)

/*
 * RX Data FIFO Status:
 * 1=attention level reached, 0=attention level not reached.
 */
#define TEGRA20_SPDIF_STATUS_QS_RX                              (1 << 17)

/*
 * TX Data FIFO Status:
 * 1=attention level reached, 0=attention level not reached.
 */
#define TEGRA20_SPDIF_STATUS_QS_TX                              (1 << 16)

/* Fields in TEGRA20_SPDIF_STROBE_CTRL */

/*
 * Indicates the approximate number of detected SPDIFIN clocks within a
 * bi-phase period.
 */
#define TEGRA20_SPDIF_STROBE_CTRL_PERIOD_SHIFT                  16
#define TEGRA20_SPDIF_STROBE_CTRL_PERIOD_MASK                   (0xff << TEGRA20_SPDIF_STROBE_CTRL_PERIOD_SHIFT)

/* Data strobe mode: 0=Auto-locked 1=Manual locked */
#define TEGRA20_SPDIF_STROBE_CTRL_STROBE                        (1 << 15)

/*
 * Manual data strobe time within the bi-phase clock period (in terms of
 * the number of over-sampling clocks).
 */
#define TEGRA20_SPDIF_STROBE_CTRL_DATA_STROBES_SHIFT            8
#define TEGRA20_SPDIF_STROBE_CTRL_DATA_STROBES_MASK             (0x1f << TEGRA20_SPDIF_STROBE_CTRL_DATA_STROBES_SHIFT)

/*
 * Manual SPDIFIN bi-phase clock period (in terms of the number of
 * over-sampling clocks).
 */
#define TEGRA20_SPDIF_STROBE_CTRL_CLOCK_PERIOD_SHIFT            0
#define TEGRA20_SPDIF_STROBE_CTRL_CLOCK_PERIOD_MASK             (0x3f << TEGRA20_SPDIF_STROBE_CTRL_CLOCK_PERIOD_SHIFT)

/* Fields in SPDIF_DATA_FIFO_CSR */

/* Clear Receiver User FIFO (RX USR.FIFO) */
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_CLR                      (1 << 31)

#define TEGRA20_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT                   0
#define TEGRA20_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS                  1
#define TEGRA20_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS                2
#define TEGRA20_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS                 3

/* RU FIFO attention level */
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT            29
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_MASK             \
                (0x3                                      << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU1_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT    << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU2_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS   << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU3_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_RU4_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS  << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_ATN_LVL_SHIFT)

/* Number of RX USR.FIFO levels with valid data. */
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_SHIFT         24
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_MASK          (0x1f << TEGRA20_SPDIF_DATA_FIFO_CSR_RU_FULL_COUNT_SHIFT)

/* Clear Transmitter User FIFO (TX USR.FIFO) */
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_CLR                      (1 << 23)

/* TU FIFO attention level */
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT            21
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_MASK             \
                (0x3                                      << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU1_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_U_ONE_SLOT    << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU2_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_U_TWO_SLOTS   << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU3_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_U_THREE_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_TU4_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_U_FOUR_SLOTS  << TEGRA20_SPDIF_DATA_FIFO_CSR_TU_ATN_LVL_SHIFT)

/* Number of TX USR.FIFO levels that could be filled. */
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_SHIFT        16
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_MASK         (0x1f << SPDIF_DATA_FIFO_CSR_TU_EMPTY_COUNT_SHIFT)

/* Clear Receiver Data FIFO (RX DATA.FIFO) */
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_CLR                      (1 << 15)

#define TEGRA20_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT                   0
#define TEGRA20_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS                 1
#define TEGRA20_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS                2
#define TEGRA20_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS               3

/* RU FIFO attention level */
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT            13
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_MASK             \
                (0x3                                       << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU1_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT     << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU4_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS   << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU8_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS  << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_RU12_WORD_FULL   \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_ATN_LVL_SHIFT)

/* Number of RX DATA.FIFO levels with valid data. */
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_SHIFT         8
#define TEGRA20_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_MASK          (0x1f << TEGRA20_SPDIF_DATA_FIFO_CSR_RX_FULL_COUNT_SHIFT)

/* Clear Transmitter Data FIFO (TX DATA.FIFO) */
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_CLR                      (1 << 7)

/* TU FIFO attention level */
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT            5
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_MASK             \
                (0x3                                       << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU1_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_D_ONE_SLOT     << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU4_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_D_FOUR_SLOTS   << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU8_WORD_FULL    \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_D_EIGHT_SLOTS  << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_TU12_WORD_FULL   \
                (TEGRA20_SPDIF_FIFO_ATN_LVL_D_TWELVE_SLOTS << TEGRA20_SPDIF_DATA_FIFO_CSR_TX_ATN_LVL_SHIFT)

/* Number of TX DATA.FIFO levels that could be filled. */
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_SHIFT        0
#define TEGRA20_SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_MASK         (0x1f << SPDIF_DATA_FIFO_CSR_TX_EMPTY_COUNT_SHIFT)

/* Fields in TEGRA20_SPDIF_DATA_OUT */

/*
 * This register has 5 different formats:
 * 16-bit        (BIT_MODE=00, PACK=0)
 * 20-bit        (BIT_MODE=01, PACK=0)
 * 24-bit        (BIT_MODE=10, PACK=0)
 * raw           (BIT_MODE=11, PACK=0)
 * 16-bit packed (BIT_MODE=00, PACK=1)
 */

#define TEGRA20_SPDIF_DATA_OUT_DATA_16_SHIFT                    0
#define TEGRA20_SPDIF_DATA_OUT_DATA_16_MASK                     (0xffff << TEGRA20_SPDIF_DATA_OUT_DATA_16_SHIFT)

#define TEGRA20_SPDIF_DATA_OUT_DATA_20_SHIFT                    0
#define TEGRA20_SPDIF_DATA_OUT_DATA_20_MASK                     (0xfffff << TEGRA20_SPDIF_DATA_OUT_DATA_20_SHIFT)

#define TEGRA20_SPDIF_DATA_OUT_DATA_24_SHIFT                    0
#define TEGRA20_SPDIF_DATA_OUT_DATA_24_MASK                     (0xffffff << TEGRA20_SPDIF_DATA_OUT_DATA_24_SHIFT)

#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_P                       (1 << 31)
#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_C                       (1 << 30)
#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_U                       (1 << 29)
#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_V                       (1 << 28)

#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_DATA_SHIFT              8
#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_DATA_MASK               (0xfffff << TEGRA20_SPDIF_DATA_OUT_DATA_RAW_DATA_SHIFT)

#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_AUX_SHIFT               4
#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_AUX_MASK                (0xf << TEGRA20_SPDIF_DATA_OUT_DATA_RAW_AUX_SHIFT)

#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_SHIFT          0
#define TEGRA20_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_MASK           (0xf << TEGRA20_SPDIF_DATA_OUT_DATA_RAW_PREAMBLE_SHIFT)

#define TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_SHIFT       16
#define TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_MASK        (0xffff << TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_RIGHT_SHIFT)

#define TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_SHIFT        0
#define TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_MASK         (0xffff << TEGRA20_SPDIF_DATA_OUT_DATA_16_PACKED_LEFT_SHIFT)

/* Fields in TEGRA20_SPDIF_DATA_IN */

/*
 * This register has 5 different formats:
 * 16-bit        (BIT_MODE=00, PACK=0)
 * 20-bit        (BIT_MODE=01, PACK=0)
 * 24-bit        (BIT_MODE=10, PACK=0)
 * raw           (BIT_MODE=11, PACK=0)
 * 16-bit packed (BIT_MODE=00, PACK=1)
 *
 * Bits 31:24 are common to all modes except 16-bit packed
 */

#define TEGRA20_SPDIF_DATA_IN_DATA_P                            (1 << 31)
#define TEGRA20_SPDIF_DATA_IN_DATA_C                            (1 << 30)
#define TEGRA20_SPDIF_DATA_IN_DATA_U                            (1 << 29)
#define TEGRA20_SPDIF_DATA_IN_DATA_V                            (1 << 28)

#define TEGRA20_SPDIF_DATA_IN_DATA_PREAMBLE_SHIFT               24
#define TEGRA20_SPDIF_DATA_IN_DATA_PREAMBLE_MASK                (0xf << TEGRA20_SPDIF_DATA_IN_DATA_PREAMBLE_SHIFT)

#define TEGRA20_SPDIF_DATA_IN_DATA_16_SHIFT                     0
#define TEGRA20_SPDIF_DATA_IN_DATA_16_MASK                      (0xffff << TEGRA20_SPDIF_DATA_IN_DATA_16_SHIFT)

#define TEGRA20_SPDIF_DATA_IN_DATA_20_SHIFT                     0
#define TEGRA20_SPDIF_DATA_IN_DATA_20_MASK                      (0xfffff << TEGRA20_SPDIF_DATA_IN_DATA_20_SHIFT)

#define TEGRA20_SPDIF_DATA_IN_DATA_24_SHIFT                     0
#define TEGRA20_SPDIF_DATA_IN_DATA_24_MASK                      (0xffffff << TEGRA20_SPDIF_DATA_IN_DATA_24_SHIFT)

#define TEGRA20_SPDIF_DATA_IN_DATA_RAW_DATA_SHIFT               8
#define TEGRA20_SPDIF_DATA_IN_DATA_RAW_DATA_MASK                (0xfffff << TEGRA20_SPDIF_DATA_IN_DATA_RAW_DATA_SHIFT)

#define TEGRA20_SPDIF_DATA_IN_DATA_RAW_AUX_SHIFT                4
#define TEGRA20_SPDIF_DATA_IN_DATA_RAW_AUX_MASK                 (0xf << TEGRA20_SPDIF_DATA_IN_DATA_RAW_AUX_SHIFT)

#define TEGRA20_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_SHIFT           0
#define TEGRA20_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_MASK            (0xf << TEGRA20_SPDIF_DATA_IN_DATA_RAW_PREAMBLE_SHIFT)

#define TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_SHIFT        16
#define TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_MASK         (0xffff << TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_RIGHT_SHIFT)

#define TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_SHIFT         0
#define TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_MASK          (0xffff << TEGRA20_SPDIF_DATA_IN_DATA_16_PACKED_LEFT_SHIFT)

/* Fields in TEGRA20_SPDIF_CH_STA_RX_A */
/* Fields in TEGRA20_SPDIF_CH_STA_RX_B */
/* Fields in TEGRA20_SPDIF_CH_STA_RX_C */
/* Fields in TEGRA20_SPDIF_CH_STA_RX_D */
/* Fields in TEGRA20_SPDIF_CH_STA_RX_E */
/* Fields in TEGRA20_SPDIF_CH_STA_RX_F */

/*
 * The 6-word receive channel data page buffer holds a block (192 frames) of
 * channel status information. The order of receive is from LSB to MSB
 * bit, and from CH_STA_RX_A to CH_STA_RX_F then back to CH_STA_RX_A.
 */

/* Fields in TEGRA20_SPDIF_CH_STA_TX_A */
/* Fields in TEGRA20_SPDIF_CH_STA_TX_B */
/* Fields in TEGRA20_SPDIF_CH_STA_TX_C */
/* Fields in TEGRA20_SPDIF_CH_STA_TX_D */
/* Fields in TEGRA20_SPDIF_CH_STA_TX_E */
/* Fields in TEGRA20_SPDIF_CH_STA_TX_F */

/*
 * The 6-word transmit channel data page buffer holds a block (192 frames) of
 * channel status information. The order of transmission is from LSB to MSB
 * bit, and from CH_STA_TX_A to CH_STA_TX_F then back to CH_STA_TX_A.
 */

/* Fields in TEGRA20_SPDIF_USR_STA_RX_A */

/*
 * This 4-word deep FIFO receives user FIFO field information. The order of
 * receive is from LSB to MSB bit.
 */

/* Fields in TEGRA20_SPDIF_USR_DAT_TX_A */

/*
 * This 4-word deep FIFO transmits user FIFO field information. The order of
 * transmission is from LSB to MSB bit.
 */

struct tegra20_spdif {
        struct clk *clk_spdif_out;
        struct snd_dmaengine_dai_dma_data capture_dma_data;
        struct snd_dmaengine_dai_dma_data playback_dma_data;
        struct regmap *regmap;
};

#endif