Linux Kernel: sound/soc/tegra/tegra30

Go to the documentation of this file.
 /*
  * 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)
 
 /* 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 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)
 
 #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         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,
                      unsigned long *fiforeg,
                      unsigned long *reqsel);
 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,
                      unsigned long *fiforeg,
                      unsigned long *reqsel);
 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 {
     struct device *dev;
     struct clk *clk_d_audio;
     struct clk *clk_apbif;
     int dma_sel;
     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