316 lines
10 KiB
C
316 lines
10 KiB
C
/****************************************************************************
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* drivers/audio/cxd56.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __DRIVERS_AUDIO_CXD56_H
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#define __DRIVERS_AUDIO_CXD56_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <pthread.h>
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#include <mqueue.h>
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#include <nuttx/audio/audio.h>
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#include <nuttx/config.h>
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#include <nuttx/compiler.h>
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#include <nuttx/fs/ioctl.h>
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#include <nuttx/spinlock.h>
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#ifdef CONFIG_AUDIO
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifndef CONFIG_CXD56_AUDIO_WORKER_STACKSIZE
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# define CONFIG_CXD56_AUDIO_WORKER_STACKSIZE 768
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#endif
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#ifndef CONFIG_CXD56_MSG_PRIO
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# define CONFIG_CXD56_MSG_PRIO 1
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#endif
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#ifdef CONFIG_CXD56_AUDIO_I2S_DEVICE_1_MASTER
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# define CXD56_I2S1_MODE 0 /* Master */
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#else
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# define CXD56_I2S1_MODE 1 /* Slave */
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#endif
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#ifdef CONFIG_CXD56_AUDIO_I2S_FORMAT_1_LEFT
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# define CXD56_I2S1_FORMAT 1 /* Left */
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#else
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# define CXD56_I2S1_FORMAT 0 /* Normal */
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#endif
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#ifdef CONFIG_CXD56_AUDIO_I2S_BYPASS_MODE_1_ENABLE
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# define CXD56_I2S1_BYPASS 0 /* Disable */
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#else
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# define CXD56_I2S1_BYPASS 1 /* Enable */
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#endif
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/* I2S data rate of I2S1 */
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#if defined(CONFIG_CXD56_I2S0)
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# define CXD56_I2S1_DATA_RATE CONFIG_CXD56_AUDIO_I2S_RATE_1
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#else
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# define CXD56_I2S1_DATA_RATE 0
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#endif
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#define CXD56_XTAL_24_576MHZ 0
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#define CXD56_XTAL_49_152MHZ 1
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#ifdef CONFIG_CXD56_AUDIO_XTAL_SEL_49_152MHZ
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# define CXD56_AUDIO_MCLK CXD56_XTAL_49_152MHZ
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#else
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# define CXD56_AUDIO_MCLK CXD56_XTAL_24_576MHZ
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#endif
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/* Drive strength levels */
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#define CXD56_DS_WEAKEST 1
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#define CXD56_DS_WEAKER 2
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#define CXD56_DS_STRONGER 3
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#define CXD56_DS_STRONGEST 4
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/* Drive strength of global pin output-A */
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#if defined(CONFIG_CXD56_AUDIO_GPO_A_WEAKEST)
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# define CXD56_GPO_A_DS CXD56_DS_WEAKEST
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#elif defined(CONFIG_CXD56_AUDIO_GPO_A_WEAKER)
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# define CXD56_GPO_A_DS CXD56_DS_WEAKER
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#elif defined(CONFIG_CXD56_AUDIO_GPO_A_STRONGER)
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# define CXD56_GPO_A_DS CXD56_DS_STRONGER
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#else
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# define CXD56_GPO_A_DS CXD56_DS_STRONGEST
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#endif
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/* Drive strength of D/A converted data */
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#if defined(CONFIG_CXD56_AUDIO_DA_DATA_WEAKEST)
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# define CXD56_DA_DS CXD56_DS_WEAKEST
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#elif defined(CONFIG_CXD56_AUDIO_DA_DATA_WEAKER)
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# define CXD56_DA_DS CXD56_DS_WEAKER
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#elif defined(CONFIG_CXD56_AUDIO_DA_DATA_STRONGER)
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# define CXD56_DA_DS CXD56_DS_STRONGER
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#else
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# define CXD56_DA_DS CXD56_DS_STRONGEST
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#endif
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/* Drive strength of digital mic clock */
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#if defined(CONFIG_CXD56_AUDIO_CLKOUT_DMIC_WEAKEST)
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# define CXD56_DMIC_CLK_DS CXD56_DS_WEAKEST
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#elif defined(CONFIG_CXD56_AUDIO_CLKOUT_DMIC_WEAKER)
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# define CXD56_DMIC_CLK_DS CXD56_DS_WEAKER
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#elif defined(CONFIG_CXD56_AUDIO_CLKOUT_DMIC_STRONGER)
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# define CXD56_DMIC_CLK_DS CXD56_DS_STRONGER
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#else
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# define CXD56_DMIC_CLK_DS CXD56_DS_STRONGEST
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#endif
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/* Drive strength of master clock */
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#if defined(CONFIG_CXD56_AUDIO_MCLKOUT_WEAKEST)
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# define CXD56_MCLKOUT_DS CXD56_DS_WEAKEST
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#elif defined(CONFIG_CXD56_AUDIO_MCLKOUT_WEAKER)
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# define CXD56_MCLKOUT_DS CXD56_DS_WEAKER
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#elif defined(CONFIG_CXD56_AUDIO_MCLKOUT_STRONGER)
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# define CXD56_MCLKOUT_DS CXD56_DS_STRONGER
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#else
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# define CXD56_MCLKOUT_DS CXD56_DS_STRONGEST
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#endif
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/* Speaker time split on drive */
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#if defined(CONFIG_CXD56_AUDIO_SP_SPLIT_LONGEST)
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# define CXD56_SP_SPLIT_ON 4
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#elif defined(CONFIG_CXD56_AUDIO_SP_SPLIT_LONG)
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# define CXD56_SP_SPLIT_ON 3
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#elif defined(CONFIG_CXD56_AUDIO_SP_SPLIT_SHORT)
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# define CXD56_SP_SPLIT_ON 2
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#else
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# define CXD56_SP_SPLIT_ON 1
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#endif
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/* Speaker drive mode */
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#if defined(CONFIG_CXD56_AUDIO_SP_DRV_LINEOUT)
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# define CXD56_SP_DRIVER 0
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#elif defined(CONFIG_CXD56_AUDIO_SP_DRV_1DRIVERT)
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# define CXD56_SP_DRIVER 1
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#elif defined(CONFIG_CXD56_AUDIO_SP_DRV_2DRIVERT)
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# define CXD56_SP_DRIVER 2
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#else
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# define CXD56_SP_DRIVER 3
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#endif
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/* Mic bias voltage select */
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#define CXD56_MIC_BIAS_20V 1
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#define CXD56_MIC_BIAS_28V 2
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#if defined(CONFIG_CXD56_AUDIO_MICBIAS_20V)
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# define CXD56_MIC_BIAS CXD56_MIC_BIAS_20V
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#else
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# define CXD56_MIC_BIAS CXD56_MIC_BIAS_28V
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#endif
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/* Mic select */
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#define CXD56_AUDIO_CFG_MIC CONFIG_CXD56_AUDIO_MIC_CHANNEL_SEL
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/* Mic boot wait time */
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#if defined(CONFIG_CXD56_AUDIO_MIC_BOOT_WAIT)
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#define CXD56_MIC_BOOT_WAIT CONFIG_CXD56_AUDIO_MIC_BOOT_WAIT
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#else
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#define CXD56_MIC_BOOT_WAIT 1100
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#endif
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/* CIC filter input path */
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#define CXD56_AUDIO_CFG_CIC_IN_SEL_NONE 0
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#define CXD56_AUDIO_CFG_CIC_IN_SEL_CXD 1
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#define CXD56_AUDIO_CFG_CIC_IN_SEL_DMICIF 2
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#if defined(CONFIG_CXD56_AUDIO_CIC_IN_SEL_CXD)
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# define CXD56_AUDIO_CFG_CIC_IN CXD56_AUDIO_CFG_CIC_IN_SEL_CXD
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#elif defined (CONFIG_CXD56_AUDIO_CIC_IN_SEL_DMIC)
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# define CXD56_AUDIO_CFG_CIC_IN CXD56_AUDIO_CFG_CIC_IN_SEL_DMICIF
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#else
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# define CXD56_AUDIO_CFG_CIC_IN CXD56_AUDIO_CFG_CIC_IN_SEL_NONE
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#endif
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/* DMA format */
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#define CXD56_DMA_FORMAT_LR 0
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#define CXD56_DMA_FORMAT_RL 1
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#if defined(CONFIG_CXD56_AUDIO_DMA_DATA_FORMAT_LR)
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# define CXD56_DMA_FORMAT CXD56_DMA_FORMAT_LR
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#else
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# define CXD56_DMA_FORMAT CXD56_DMA_FORMAT_RL
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#endif
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/* Audio buffer configuration */
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#ifndef CONFIG_CXD56_AUDIO_BUFFER_SIZE
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# define CONFIG_CXD56_AUDIO_BUFFER_SIZE 4096
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#endif
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#ifndef CONFIG_CXD56_AUDIO_NUM_BUFFERS
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# define CONFIG_CXD56_AUDIO_NUM_BUFFERS 4
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#endif
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/* Queue helpers */
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#define dq_get(q) (dq_remfirst(q))
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#define dq_put(q,n) (dq_addlast((dq_entry_t*)n,(q)))
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#define dq_put_back(q,n) (dq_addfirst((dq_entry_t*)n,(q)))
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#define dq_clear(q) \
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do \
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{ \
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dq_remlast(q); \
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} \
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while (!dq_empty(q))
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/****************************************************************************
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* Public Types
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****************************************************************************/
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enum cxd56_dmahandle_e
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{
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CXD56_AUDIO_DMA_MIC,
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CXD56_AUDIO_DMA_I2S0_DOWN,
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CXD56_AUDIO_DMA_COUNT
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};
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typedef enum cxd56_dmahandle_e cxd56_dmahandle_t;
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enum cxd56_devstate_e
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{
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CXD56_DEV_STATE_OFF,
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CXD56_DEV_STATE_PAUSED,
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CXD56_DEV_STATE_BUFFERING,
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CXD56_DEV_STATE_STARTED,
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CXD56_DEV_STATE_STOPPED
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};
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struct cxd56_dev_s
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{
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/* We are an audio lower half driver (We are also the upper "half" of
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* the CS43L22 driver with respect to the board lower half driver).
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*
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* Terminology:
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* Our "lower" half audio instances will be called dev for the publicly
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* visible version and "priv" for the version that only this driver
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* knows. From the point of view of this driver, it is the board lower
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* "half" that is referred to as "lower".
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*/
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struct audio_lowerhalf_s dev; /* CXD56 audio lower half (this device) */
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/* Our specific driver data goes here */
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const FAR struct cxd56_lower_s *lower; /* Pointer to the board lower functions */
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enum cxd56_devstate_e state; /* Driver state */
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enum cxd56_dmahandle_e dma_handle; /* DMA handle */
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struct file mq; /* Message queue for receiving messages */
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char mqname[16]; /* Our message queue name */
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pthread_t threadid; /* ID of our thread */
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sem_t pendsem; /* Protect pendq */
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struct dq_queue_s up_pendq; /* Pending buffers from app to process */
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struct dq_queue_s up_runq; /* Buffers from app being played */
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#ifdef CONFIG_AUDIO_CXD56_SRC
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struct dq_queue_s down_pendq; /* Pending SRC buffers to be DMA'd */
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struct dq_queue_s down_runq; /* SRC buffers being processed */
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struct dq_queue_s down_doneq; /* Done SRC buffers to be re-used */
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#endif
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uint16_t samplerate; /* Sample rate */
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#ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
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int16_t volume; /* Output volume {0..63} */
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#endif /* CONFIG_AUDIO_EXCLUDE_VOLUME */
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uint8_t channels; /* Number of channels (1..8) */
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uint16_t mic_gain; /* Mic gain */
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uint64_t mic_boot_start; /* Mic startup wait time */
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uint8_t bitwidth; /* Bits per sample (16 or 24) */
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bool muted; /* True: Output is muted */
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bool running; /* True: Worker thread is running */
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bool paused; /* True: Playing is paused */
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#ifndef CONFIG_AUDIO_EXCLUDE_STOP
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bool terminating; /* True: Stop requested */
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#endif
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bool reserved; /* True: Device is reserved */
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volatile int result; /* The result of the last transfer */
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spinlock_t lock; /* Spinlock for SMP */
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#endif /* CONFIG_AUDIO */
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#endif /* __DRIVERS_AUDIO_CXD56_H */
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