/*
 * tegra30_ahub.h - Definitions for Tegra30 AHUB 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_AHUB_H__
#define __TEGRA30_AHUB_H__

/* Fields in *_CIF_RX/TX_CTRL; used by AHUB FIFOs, and all other audio modules */

#define TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT      28
#define TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK_US    0xf
#define TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK       (TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK_US << TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT)

#define TEGRA124_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT     24
#define TEGRA124_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK_US   0x3f
#define TEGRA124_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK      (TEGRA124_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK_US << TEGRA124_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT)

/* Channel count minus 1 */
#define TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT      24
#define TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK_US    7
#define TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK       (TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK_US << TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT)

/* Channel count minus 1 */
#define TEGRA124_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT     20
#define TEGRA124_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK_US   0xf
#define TEGRA124_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK      (TEGRA124_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK_US << TEGRA124_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT)

/* Channel count minus 1 */
#define TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT     16
#define TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK_US   7
#define TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK      (TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK_US << TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT)

/* Channel count minus 1 */
#define TEGRA124_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT    16
#define TEGRA124_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK_US  0xf
#define TEGRA124_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK     (TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK_US << TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT)

#define TEGRA30_AUDIOCIF_BITS_4                         0
#define TEGRA30_AUDIOCIF_BITS_8                         1
#define TEGRA30_AUDIOCIF_BITS_12                        2
#define TEGRA30_AUDIOCIF_BITS_16                        3
#define TEGRA30_AUDIOCIF_BITS_20                        4
#define TEGRA30_AUDIOCIF_BITS_24                        5
#define TEGRA30_AUDIOCIF_BITS_28                        6
#define TEGRA30_AUDIOCIF_BITS_32                        7

#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT          12
#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_MASK           (7                        << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_4              (TEGRA30_AUDIOCIF_BITS_4  << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_8              (TEGRA30_AUDIOCIF_BITS_8  << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_12             (TEGRA30_AUDIOCIF_BITS_12 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_16             (TEGRA30_AUDIOCIF_BITS_16 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_20             (TEGRA30_AUDIOCIF_BITS_20 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_24             (TEGRA30_AUDIOCIF_BITS_24 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_28             (TEGRA30_AUDIOCIF_BITS_28 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_32             (TEGRA30_AUDIOCIF_BITS_32 << TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT)

#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT         8
#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_MASK          (7                        << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_4             (TEGRA30_AUDIOCIF_BITS_4  << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_8             (TEGRA30_AUDIOCIF_BITS_8  << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_12            (TEGRA30_AUDIOCIF_BITS_12 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_16            (TEGRA30_AUDIOCIF_BITS_16 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_20            (TEGRA30_AUDIOCIF_BITS_20 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_24            (TEGRA30_AUDIOCIF_BITS_24 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_28            (TEGRA30_AUDIOCIF_BITS_28 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_32            (TEGRA30_AUDIOCIF_BITS_32 << TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT)

#define TEGRA30_AUDIOCIF_EXPAND_ZERO                    0
#define TEGRA30_AUDIOCIF_EXPAND_ONE                     1
#define TEGRA30_AUDIOCIF_EXPAND_LFSR                    2

#define TEGRA30_AUDIOCIF_CTRL_EXPAND_SHIFT              6
#define TEGRA30_AUDIOCIF_CTRL_EXPAND_MASK               (3                            << TEGRA30_AUDIOCIF_CTRL_EXPAND_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_EXPAND_ZERO               (TEGRA30_AUDIOCIF_EXPAND_ZERO << TEGRA30_AUDIOCIF_CTRL_EXPAND_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_EXPAND_ONE                (TEGRA30_AUDIOCIF_EXPAND_ONE  << TEGRA30_AUDIOCIF_CTRL_EXPAND_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_EXPAND_LFSR               (TEGRA30_AUDIOCIF_EXPAND_LFSR << TEGRA30_AUDIOCIF_CTRL_EXPAND_SHIFT)

#define TEGRA30_AUDIOCIF_STEREO_CONV_CH0                0
#define TEGRA30_AUDIOCIF_STEREO_CONV_CH1                1
#define TEGRA30_AUDIOCIF_STEREO_CONV_AVG                2

#define TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT         4
#define TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_MASK          (3                                << TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_CH0           (TEGRA30_AUDIOCIF_STEREO_CONV_CH0 << TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_CH1           (TEGRA30_AUDIOCIF_STEREO_CONV_CH1 << TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_AVG           (TEGRA30_AUDIOCIF_STEREO_CONV_AVG << TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT)

#define TEGRA30_AUDIOCIF_CTRL_REPLICATE_SHIFT           3

#define TEGRA30_AUDIOCIF_DIRECTION_TX                   0
#define TEGRA30_AUDIOCIF_DIRECTION_RX                   1

#define TEGRA30_AUDIOCIF_CTRL_DIRECTION_SHIFT           2
#define TEGRA30_AUDIOCIF_CTRL_DIRECTION_MASK            (1                             << TEGRA30_AUDIOCIF_CTRL_DIRECTION_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_DIRECTION_TX              (TEGRA30_AUDIOCIF_DIRECTION_TX << TEGRA30_AUDIOCIF_CTRL_DIRECTION_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_DIRECTION_RX              (TEGRA30_AUDIOCIF_DIRECTION_RX << TEGRA30_AUDIOCIF_CTRL_DIRECTION_SHIFT)

#define TEGRA30_AUDIOCIF_TRUNCATE_ROUND                 0
#define TEGRA30_AUDIOCIF_TRUNCATE_CHOP                  1

#define TEGRA30_AUDIOCIF_CTRL_TRUNCATE_SHIFT            1
#define TEGRA30_AUDIOCIF_CTRL_TRUNCATE_MASK             (1                               << TEGRA30_AUDIOCIF_CTRL_TRUNCATE_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_TRUNCATE_ROUND            (TEGRA30_AUDIOCIF_TRUNCATE_ROUND << TEGRA30_AUDIOCIF_CTRL_TRUNCATE_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_TRUNCATE_CHOP             (TEGRA30_AUDIOCIF_TRUNCATE_CHOP  << TEGRA30_AUDIOCIF_CTRL_TRUNCATE_SHIFT)

#define TEGRA30_AUDIOCIF_MONO_CONV_ZERO                 0
#define TEGRA30_AUDIOCIF_MONO_CONV_COPY                 1

#define TEGRA30_AUDIOCIF_CTRL_MONO_CONV_SHIFT           0
#define TEGRA30_AUDIOCIF_CTRL_MONO_CONV_MASK            (1                               << TEGRA30_AUDIOCIF_CTRL_MONO_CONV_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_MONO_CONV_ZERO            (TEGRA30_AUDIOCIF_MONO_CONV_ZERO << TEGRA30_AUDIOCIF_CTRL_MONO_CONV_SHIFT)
#define TEGRA30_AUDIOCIF_CTRL_MONO_CONV_COPY            (TEGRA30_AUDIOCIF_MONO_CONV_COPY << TEGRA30_AUDIOCIF_CTRL_MONO_CONV_SHIFT)

/* Registers within TEGRA30_AUDIO_CLUSTER_BASE */

/* TEGRA30_AHUB_CHANNEL_CTRL */

#define TEGRA30_AHUB_CHANNEL_CTRL                       0x0
#define TEGRA30_AHUB_CHANNEL_CTRL_STRIDE                0x20
#define TEGRA30_AHUB_CHANNEL_CTRL_COUNT                 4
#define TEGRA30_AHUB_CHANNEL_CTRL_TX_EN                 (1 << 31)
#define TEGRA30_AHUB_CHANNEL_CTRL_RX_EN                 (1 << 30)
#define TEGRA30_AHUB_CHANNEL_CTRL_LOOPBACK              (1 << 29)

#define TEGRA30_AHUB_CHANNEL_CTRL_TX_THRESHOLD_SHIFT    16
#define TEGRA30_AHUB_CHANNEL_CTRL_TX_THRESHOLD_MASK_US  0xff
#define TEGRA30_AHUB_CHANNEL_CTRL_TX_THRESHOLD_MASK     (TEGRA30_AHUB_CHANNEL_CTRL_TX_THRESHOLD_MASK_US << TEGRA30_AHUB_CHANNEL_CTRL_TX_THRESHOLD_SHIFT)

#define TEGRA30_AHUB_CHANNEL_CTRL_RX_THRESHOLD_SHIFT    8
#define TEGRA30_AHUB_CHANNEL_CTRL_RX_THRESHOLD_MASK_US  0xff
#define TEGRA30_AHUB_CHANNEL_CTRL_RX_THRESHOLD_MASK     (TEGRA30_AHUB_CHANNEL_CTRL_RX_THRESHOLD_MASK_US << TEGRA30_AHUB_CHANNEL_CTRL_RX_THRESHOLD_SHIFT)

#define TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_EN            (1 << 6)

#define TEGRA30_PACK_8_4                                2
#define TEGRA30_PACK_16                                 3

#define TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_SHIFT         4
#define TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_MASK_US       3
#define TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_MASK          (TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_MASK_US << TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_SHIFT)
#define TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_8_4           (TEGRA30_PACK_8_4                          << TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_SHIFT)
#define TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_16            (TEGRA30_PACK_16                           << TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_SHIFT)

#define TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_EN            (1 << 2)

#define TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_SHIFT         0
#define TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_MASK_US       3
#define TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_MASK          (TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_MASK_US << TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_SHIFT)
#define TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_8_4           (TEGRA30_PACK_8_4                          << TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_SHIFT)
#define TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_16            (TEGRA30_PACK_16                           << TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_SHIFT)

/* TEGRA30_AHUB_CHANNEL_CLEAR */

#define TEGRA30_AHUB_CHANNEL_CLEAR                      0x4
#define TEGRA30_AHUB_CHANNEL_CLEAR_STRIDE               0x20
#define TEGRA30_AHUB_CHANNEL_CLEAR_COUNT                4
#define TEGRA30_AHUB_CHANNEL_CLEAR_TX_SOFT_RESET        (1 << 31)
#define TEGRA30_AHUB_CHANNEL_CLEAR_RX_SOFT_RESET        (1 << 30)

/* TEGRA30_AHUB_CHANNEL_STATUS */

#define TEGRA30_AHUB_CHANNEL_STATUS                     0x8
#define TEGRA30_AHUB_CHANNEL_STATUS_STRIDE              0x20
#define TEGRA30_AHUB_CHANNEL_STATUS_COUNT               4
#define TEGRA30_AHUB_CHANNEL_STATUS_TX_FREE_SHIFT       24
#define TEGRA30_AHUB_CHANNEL_STATUS_TX_FREE_MASK_US     0xff
#define TEGRA30_AHUB_CHANNEL_STATUS_TX_FREE_MASK        (TEGRA30_AHUB_CHANNEL_STATUS_TX_FREE_MASK_US << TEGRA30_AHUB_CHANNEL_STATUS_TX_FREE_SHIFT)
#define TEGRA30_AHUB_CHANNEL_STATUS_RX_FREE_SHIFT       16
#define TEGRA30_AHUB_CHANNEL_STATUS_RX_FREE_MASK_US     0xff
#define TEGRA30_AHUB_CHANNEL_STATUS_RX_FREE_MASK        (TEGRA30_AHUB_CHANNEL_STATUS_RX_FREE_MASK_US << TEGRA30_AHUB_CHANNEL_STATUS_RX_FREE_SHIFT)
#define TEGRA30_AHUB_CHANNEL_STATUS_TX_TRIG             (1 << 1)
#define TEGRA30_AHUB_CHANNEL_STATUS_RX_TRIG             (1 << 0)

/* TEGRA30_AHUB_CHANNEL_TXFIFO */

#define TEGRA30_AHUB_CHANNEL_TXFIFO                     0xc
#define TEGRA30_AHUB_CHANNEL_TXFIFO_STRIDE              0x20
#define TEGRA30_AHUB_CHANNEL_TXFIFO_COUNT               4

/* TEGRA30_AHUB_CHANNEL_RXFIFO */

#define TEGRA30_AHUB_CHANNEL_RXFIFO                     0x10
#define TEGRA30_AHUB_CHANNEL_RXFIFO_STRIDE              0x20
#define TEGRA30_AHUB_CHANNEL_RXFIFO_COUNT               4

/* TEGRA30_AHUB_CIF_TX_CTRL */

#define TEGRA30_AHUB_CIF_TX_CTRL                        0x14
#define TEGRA30_AHUB_CIF_TX_CTRL_STRIDE                 0x20
#define TEGRA30_AHUB_CIF_TX_CTRL_COUNT                  4
/* Uses field from TEGRA30_AUDIOCIF_CTRL_* */

/* TEGRA30_AHUB_CIF_RX_CTRL */

#define TEGRA30_AHUB_CIF_RX_CTRL                        0x18
#define TEGRA30_AHUB_CIF_RX_CTRL_STRIDE                 0x20
#define TEGRA30_AHUB_CIF_RX_CTRL_COUNT                  4
/* Uses field from TEGRA30_AUDIOCIF_CTRL_* */

/* TEGRA30_AHUB_CONFIG_LINK_CTRL */

#define TEGRA30_AHUB_CONFIG_LINK_CTRL                                   0x80
#define TEGRA30_AHUB_CONFIG_LINK_CTRL_MASTER_FIFO_FULL_CNT_SHIFT        28
#define TEGRA30_AHUB_CONFIG_LINK_CTRL_MASTER_FIFO_FULL_CNT_MASK_US      0xf
#define TEGRA30_AHUB_CONFIG_LINK_CTRL_MASTER_FIFO_FULL_CNT_MASK         (TEGRA30_AHUB_CONFIG_LINK_CTRL_MASTER_FIFO_FULL_CNT_MASK_US << TEGRA30_AHUB_CONFIG_LINK_CTRL_MASTER_FIFO_FULL_CNT_SHIFT)
#define TEGRA30_AHUB_CONFIG_LINK_CTRL_TIMEOUT_CNT_SHIFT                 16
#define TEGRA30_AHUB_CONFIG_LINK_CTRL_TIMEOUT_CNT_MASK_US               0xfff
#define TEGRA30_AHUB_CONFIG_LINK_CTRL_TIMEOUT_CNT_MASK                  (TEGRA30_AHUB_CONFIG_LINK_CTRL_TIMEOUT_CNT_MASK_US << TEGRA30_AHUB_CONFIG_LINK_CTRL_TIMEOUT_CNT_SHIFT)
#define TEGRA30_AHUB_CONFIG_LINK_CTRL_IDLE_CNT_SHIFT                    4
#define TEGRA30_AHUB_CONFIG_LINK_CTRL_IDLE_CNT_MASK_US                  0xfff
#define TEGRA30_AHUB_CONFIG_LINK_CTRL_IDLE_CNT_MASK                     (TEGRA30_AHUB_CONFIG_LINK_CTRL_IDLE_CNT_MASK_US << TEGRA30_AHUB_CONFIG_LINK_CTRL_IDLE_CNT_SHIFT)
#define TEGRA30_AHUB_CONFIG_LINK_CTRL_CG_EN                             (1 << 2)
#define TEGRA30_AHUB_CONFIG_LINK_CTRL_CLEAR_TIMEOUT_CNTR                (1 << 1)
#define TEGRA30_AHUB_CONFIG_LINK_CTRL_SOFT_RESET                        (1 << 0)

/* TEGRA30_AHUB_MISC_CTRL */

#define TEGRA30_AHUB_MISC_CTRL                          0x84
#define TEGRA30_AHUB_MISC_CTRL_AUDIO_ACTIVE             (1 << 31)
#define TEGRA30_AHUB_MISC_CTRL_AUDIO_CG_EN              (1 << 8)
#define TEGRA30_AHUB_MISC_CTRL_AUDIO_OBS_SEL_SHIFT      0
#define TEGRA30_AHUB_MISC_CTRL_AUDIO_OBS_SEL_MASK       (0x1f << TEGRA30_AHUB_MISC_CTRL_AUDIO_OBS_SEL_SHIFT)

/* TEGRA30_AHUB_APBDMA_LIVE_STATUS */

#define TEGRA30_AHUB_APBDMA_LIVE_STATUS                         0x88
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_RX_CIF_FIFO_FULL    (1 << 31)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_TX_CIF_FIFO_FULL    (1 << 30)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_RX_CIF_FIFO_FULL    (1 << 29)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_TX_CIF_FIFO_FULL    (1 << 28)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_RX_CIF_FIFO_FULL    (1 << 27)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_TX_CIF_FIFO_FULL    (1 << 26)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_RX_CIF_FIFO_FULL    (1 << 25)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_TX_CIF_FIFO_FULL    (1 << 24)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_RX_CIF_FIFO_EMPTY   (1 << 23)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_TX_CIF_FIFO_EMPTY   (1 << 22)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_RX_CIF_FIFO_EMPTY   (1 << 21)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_TX_CIF_FIFO_EMPTY   (1 << 20)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_RX_CIF_FIFO_EMPTY   (1 << 19)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_TX_CIF_FIFO_EMPTY   (1 << 18)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_RX_CIF_FIFO_EMPTY   (1 << 17)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_TX_CIF_FIFO_EMPTY   (1 << 16)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_RX_DMA_FIFO_FULL    (1 << 15)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_TX_DMA_FIFO_FULL    (1 << 14)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_RX_DMA_FIFO_FULL    (1 << 13)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_TX_DMA_FIFO_FULL    (1 << 12)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_RX_DMA_FIFO_FULL    (1 << 11)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_TX_DMA_FIFO_FULL    (1 << 10)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_RX_DMA_FIFO_FULL    (1 << 9)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_TX_DMA_FIFO_FULL    (1 << 8)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_RX_DMA_FIFO_EMPTY   (1 << 7)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH3_TX_DMA_FIFO_EMPTY   (1 << 6)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_RX_DMA_FIFO_EMPTY   (1 << 5)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH2_TX_DMA_FIFO_EMPTY   (1 << 4)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_RX_DMA_FIFO_EMPTY   (1 << 3)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH1_TX_DMA_FIFO_EMPTY   (1 << 2)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_RX_DMA_FIFO_EMPTY   (1 << 1)
#define TEGRA30_AHUB_APBDMA_LIVE_STATUS_CH0_TX_DMA_FIFO_EMPTY   (1 << 0)

/* TEGRA30_AHUB_I2S_LIVE_STATUS */

#define TEGRA30_AHUB_I2S_LIVE_STATUS                            0x8c
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S4_RX_FIFO_FULL          (1 << 29)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S4_TX_FIFO_FULL          (1 << 28)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S3_RX_FIFO_FULL          (1 << 27)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S3_TX_FIFO_FULL          (1 << 26)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S2_RX_FIFO_FULL          (1 << 25)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S2_TX_FIFO_FULL          (1 << 24)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S1_RX_FIFO_FULL          (1 << 23)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S1_TX_FIFO_FULL          (1 << 22)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S0_RX_FIFO_FULL          (1 << 21)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S0_TX_FIFO_FULL          (1 << 20)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S4_RX_FIFO_ENABLED       (1 << 19)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S4_TX_FIFO_ENABLED       (1 << 18)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S3_RX_FIFO_ENABLED       (1 << 17)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S3_TX_FIFO_ENABLED       (1 << 16)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S2_RX_FIFO_ENABLED       (1 << 15)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S2_TX_FIFO_ENABLED       (1 << 14)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S1_RX_FIFO_ENABLED       (1 << 13)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S1_TX_FIFO_ENABLED       (1 << 12)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S0_RX_FIFO_ENABLED       (1 << 11)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S0_TX_FIFO_ENABLED       (1 << 10)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S4_RX_FIFO_EMPTY         (1 << 9)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S4_TX_FIFO_EMPTY         (1 << 8)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S3_RX_FIFO_EMPTY         (1 << 7)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S3_TX_FIFO_EMPTY         (1 << 6)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S2_RX_FIFO_EMPTY         (1 << 5)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S2_TX_FIFO_EMPTY         (1 << 4)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S1_RX_FIFO_EMPTY         (1 << 3)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S1_TX_FIFO_EMPTY         (1 << 2)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S0_RX_FIFO_EMPTY         (1 << 1)
#define TEGRA30_AHUB_I2S_LIVE_STATUS_I2S0_TX_FIFO_EMPTY         (1 << 0)

/* TEGRA30_AHUB_DAM0_LIVE_STATUS */

#define TEGRA30_AHUB_DAM_LIVE_STATUS                            0x90
#define TEGRA30_AHUB_DAM_LIVE_STATUS_STRIDE                     0x8
#define TEGRA30_AHUB_DAM_LIVE_STATUS_COUNT                      3
#define TEGRA30_AHUB_DAM_LIVE_STATUS_TX_ENABLED                 (1 << 26)
#define TEGRA30_AHUB_DAM_LIVE_STATUS_RX1_ENABLED                (1 << 25)
#define TEGRA30_AHUB_DAM_LIVE_STATUS_RX0_ENABLED                (1 << 24)
#define TEGRA30_AHUB_DAM_LIVE_STATUS_TXFIFO_FULL                (1 << 15)
#define TEGRA30_AHUB_DAM_LIVE_STATUS_RX1FIFO_FULL               (1 << 9)
#define TEGRA30_AHUB_DAM_LIVE_STATUS_RX0FIFO_FULL               (1 << 8)
#define TEGRA30_AHUB_DAM_LIVE_STATUS_TXFIFO_EMPTY               (1 << 7)
#define TEGRA30_AHUB_DAM_LIVE_STATUS_RX1FIFO_EMPTY              (1 << 1)
#define TEGRA30_AHUB_DAM_LIVE_STATUS_RX0FIFO_EMPTY              (1 << 0)

/* TEGRA30_AHUB_SPDIF_LIVE_STATUS */

#define TEGRA30_AHUB_SPDIF_LIVE_STATUS                          0xa8
#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_USER_TX_ENABLED          (1 << 11)
#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_USER_RX_ENABLED          (1 << 10)
#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_DATA_TX_ENABLED          (1 << 9)
#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_DATA_RX_ENABLED          (1 << 8)
#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_USER_TXFIFO_FULL         (1 << 7)
#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_USER_RXFIFO_FULL         (1 << 6)
#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_DATA_TXFIFO_FULL         (1 << 5)
#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_DATA_RXFIFO_FULL         (1 << 4)
#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_USER_TXFIFO_EMPTY        (1 << 3)
#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_USER_RXFIFO_EMPTY        (1 << 2)
#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_DATA_TXFIFO_EMPTY        (1 << 1)
#define TEGRA30_AHUB_SPDIF_LIVE_STATUS_DATA_RXFIFO_EMPTY        (1 << 0)

/* TEGRA30_AHUB_I2S_INT_MASK */

#define TEGRA30_AHUB_I2S_INT_MASK                               0xb0

/* TEGRA30_AHUB_DAM_INT_MASK */

#define TEGRA30_AHUB_DAM_INT_MASK                               0xb4

/* TEGRA30_AHUB_SPDIF_INT_MASK */

#define TEGRA30_AHUB_SPDIF_INT_MASK                             0xbc

/* TEGRA30_AHUB_APBIF_INT_MASK */

#define TEGRA30_AHUB_APBIF_INT_MASK                             0xc0

/* TEGRA30_AHUB_I2S_INT_STATUS */

#define TEGRA30_AHUB_I2S_INT_STATUS                             0xc8

/* TEGRA30_AHUB_DAM_INT_STATUS */

#define TEGRA30_AHUB_DAM_INT_STATUS                             0xcc

/* TEGRA30_AHUB_SPDIF_INT_STATUS */

#define TEGRA30_AHUB_SPDIF_INT_STATUS                           0xd4

/* TEGRA30_AHUB_APBIF_INT_STATUS */

#define TEGRA30_AHUB_APBIF_INT_STATUS                           0xd8

/* TEGRA30_AHUB_I2S_INT_SOURCE */

#define TEGRA30_AHUB_I2S_INT_SOURCE                             0xe0

/* TEGRA30_AHUB_DAM_INT_SOURCE */

#define TEGRA30_AHUB_DAM_INT_SOURCE                             0xe4

/* TEGRA30_AHUB_SPDIF_INT_SOURCE */

#define TEGRA30_AHUB_SPDIF_INT_SOURCE                           0xec

/* TEGRA30_AHUB_APBIF_INT_SOURCE */

#define TEGRA30_AHUB_APBIF_INT_SOURCE                           0xf0

/* TEGRA30_AHUB_I2S_INT_SET */

#define TEGRA30_AHUB_I2S_INT_SET                                0xf8

/* TEGRA30_AHUB_DAM_INT_SET */

#define TEGRA30_AHUB_DAM_INT_SET                                0xfc

/* TEGRA30_AHUB_SPDIF_INT_SET */

#define TEGRA30_AHUB_SPDIF_INT_SET                              0x100

/* TEGRA30_AHUB_APBIF_INT_SET */

#define TEGRA30_AHUB_APBIF_INT_SET                              0x104

/* Registers within TEGRA30_AHUB_BASE */

#define TEGRA30_AHUB_AUDIO_RX                                   0x0
#define TEGRA30_AHUB_AUDIO_RX_STRIDE                            0x4
#define TEGRA30_AHUB_AUDIO_RX_COUNT                             17
/* This register repeats once for each entry in enum tegra30_ahub_rxcif */
/* The fields in this register are 1 bit per entry in tegra30_ahub_txcif */

/*
 * Terminology:
 * AHUB: Audio Hub; a cross-bar switch between the audio devices: DMA FIFOs,
 *       I2S controllers, SPDIF controllers, and DAMs.
 * XBAR: The core cross-bar component of the AHUB.
 * CIF:  Client Interface; the HW module connecting an audio device to the
 *       XBAR.
 * DAM:  Digital Audio Mixer: A HW module that mixes multiple audio streams,
 *       possibly including sample-rate conversion.
 *
 * Each TX CIF transmits data into the XBAR. Each RX CIF can receive audio
 * transmitted by a particular TX CIF.
 *
 * This driver is currently very simplistic; many HW features are not
 * exposed; DAMs are not supported, only 16-bit stereo audio is supported,
 * etc.
 */

enum tegra30_ahub_txcif {
        TEGRA30_AHUB_TXCIF_APBIF_TX0,
        TEGRA30_AHUB_TXCIF_APBIF_TX1,
        TEGRA30_AHUB_TXCIF_APBIF_TX2,
        TEGRA30_AHUB_TXCIF_APBIF_TX3,
        TEGRA30_AHUB_TXCIF_I2S0_TX0,
        TEGRA30_AHUB_TXCIF_I2S1_TX0,
        TEGRA30_AHUB_TXCIF_I2S2_TX0,
        TEGRA30_AHUB_TXCIF_I2S3_TX0,
        TEGRA30_AHUB_TXCIF_I2S4_TX0,
        TEGRA30_AHUB_TXCIF_DAM0_TX0,
        TEGRA30_AHUB_TXCIF_DAM1_TX0,
        TEGRA30_AHUB_TXCIF_DAM2_TX0,
        TEGRA30_AHUB_TXCIF_SPDIF_TX0,
        TEGRA30_AHUB_TXCIF_SPDIF_TX1,
};

enum tegra30_ahub_rxcif {
        TEGRA30_AHUB_RXCIF_APBIF_RX0,
        TEGRA30_AHUB_RXCIF_APBIF_RX1,
        TEGRA30_AHUB_RXcIF_APBIF_RX2,
        TEGRA30_AHUB_RXCIF_APBIF_RX3,
        TEGRA30_AHUB_RXCIF_I2S0_RX0,
        TEGRA30_AHUB_RXCIF_I2S1_RX0,
        TEGRA30_AHUB_RXCIF_I2S2_RX0,
        TEGRA30_AHUB_RXCIF_I2S3_RX0,
        TEGRA30_AHUB_RXCIF_I2S4_RX0,
        TEGRA30_AHUB_RXCIF_DAM0_RX0,
        TEGRA30_AHUB_RXCIF_DAM0_RX1,
        TEGRA30_AHUB_RXCIF_DAM1_RX0,
        TEGRA30_AHUB_RXCIF_DAM2_RX1,
        TEGRA30_AHUB_RXCIF_DAM3_RX0,
        TEGRA30_AHUB_RXCIF_DAM3_RX1,
        TEGRA30_AHUB_RXCIF_SPDIF_RX0,
        TEGRA30_AHUB_RXCIF_SPDIF_RX1,
};

extern int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif,
                                         char *dmachan, int dmachan_len,
                                         dma_addr_t *fiforeg);
extern int tegra30_ahub_enable_rx_fifo(enum tegra30_ahub_rxcif rxcif);
extern int tegra30_ahub_disable_rx_fifo(enum tegra30_ahub_rxcif rxcif);
extern int tegra30_ahub_free_rx_fifo(enum tegra30_ahub_rxcif rxcif);

extern int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif,
                                         char *dmachan, int dmachan_len,
                                         dma_addr_t *fiforeg);
extern int tegra30_ahub_enable_tx_fifo(enum tegra30_ahub_txcif txcif);
extern int tegra30_ahub_disable_tx_fifo(enum tegra30_ahub_txcif txcif);
extern int tegra30_ahub_free_tx_fifo(enum tegra30_ahub_txcif txcif);

extern int tegra30_ahub_set_rx_cif_source(enum tegra30_ahub_rxcif rxcif,
                                          enum tegra30_ahub_txcif txcif);
extern int tegra30_ahub_unset_rx_cif_source(enum tegra30_ahub_rxcif rxcif);

struct tegra30_ahub_cif_conf {
        unsigned int threshold;
        unsigned int audio_channels;
        unsigned int client_channels;
        unsigned int audio_bits;
        unsigned int client_bits;
        unsigned int expand;
        unsigned int stereo_conv;
        unsigned int replicate;
        unsigned int direction;
        unsigned int truncate;
        unsigned int mono_conv;
};

void tegra30_ahub_set_cif(struct regmap *regmap, unsigned int reg,
                          struct tegra30_ahub_cif_conf *conf);
void tegra124_ahub_set_cif(struct regmap *regmap, unsigned int reg,
                           struct tegra30_ahub_cif_conf *conf);

struct tegra30_ahub_soc_data {
        u32 mod_list_mask;
        void (*set_audio_cif)(struct regmap *regmap,
                              unsigned int reg,
                              struct tegra30_ahub_cif_conf *conf);
        /*
         * FIXME: There are many more differences in HW, such as:
         * - More APBIF channels.
         * - Extra separate chunks of register address space to represent
         *   the extra APBIF channels.
         * - More units connected to the AHUB, so that tegra30_ahub_[rt]xcif
         *   need expansion, coupled with there being more defined bits in
         *   the AHUB routing registers.
         * However, the driver doesn't support those new features yet, so we
         * don't represent them here yet.
         */
};

struct tegra30_ahub {
        const struct tegra30_ahub_soc_data *soc_data;
        struct device *dev;
        struct clk *clk_d_audio;
        struct clk *clk_apbif;
        resource_size_t apbif_addr;
        struct regmap *regmap_apbif;
        struct regmap *regmap_ahub;
        DECLARE_BITMAP(rx_usage, TEGRA30_AHUB_CHANNEL_CTRL_COUNT);
        DECLARE_BITMAP(tx_usage, TEGRA30_AHUB_CHANNEL_CTRL_COUNT);
};

#endif