cxd56: add initial Nuttx audio driver
Adds an initial Nuttx audio driver supporting the Spresense CXD56. Being a work in progress the driver has a number of limitations: - Audio playback only, no recording yet. - Only 16 bit stereo playback is supported. - In practice only 48kHz playback is supported due to missing SRC. - Configure driver in "Device Drivers --> Audio Device Support".
This commit is contained in:
Tobias Johansson
patacongo
parent
50431e6694
commit
57e8f0451a
@ -27,6 +27,35 @@ if AUDIO_TONE
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endif # AUDIO_TONE
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config AUDIO_CXD56
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bool "CXD56 audio driver"
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default n
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depends on AUDIO
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select AUDIO_DRIVER_SPECIFIC_BUFFERS
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---help---
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Enable support for audio playback using the CXD5247 chip on the
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CXD56 Spresense board.
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if AUDIO_CXD56
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if AUDIO_DRIVER_SPECIFIC_BUFFERS
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config CXD56_AUDIO_NUM_BUFFERS
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int "Number of audio buffers to use"
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default 4
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config CXD56_AUDIO_BUFFER_SIZE
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int "Size of each audio buffer"
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default 4096
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endif # AUDIO_DRIVER_SPECIFIC_BUFFERS
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config CXD56_AUDIO_WORKER_STACKSIZE
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int "Worker thread stack size"
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default 768
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endif # AUDIO_CXD56
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config AUDIO_VS1053
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bool "VS1053 codec chip"
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default n
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@ -39,6 +39,10 @@
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ifeq ($(CONFIG_DRIVERS_AUDIO),y)
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ifeq ($(CONFIG_AUDIO_CXD56),y)
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CSRCS += cxd56.c
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endif
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ifeq ($(CONFIG_AUDIO_VS1053),y)
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CSRCS += vs1053.c
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endif
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2267
drivers/audio/cxd56.c
Normal file
2267
drivers/audio/cxd56.c
Normal file
File diff suppressed because it is too large
Load Diff
271
drivers/audio/cxd56.h
Normal file
271
drivers/audio/cxd56.h
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@ -0,0 +1,271 @@
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/****************************************************************************
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* drivers/audio/cxd56.h
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*
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* Copyright 2019 Sony Semiconductor Solutions Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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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#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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/* 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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/****************************************************************************
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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_STOPPED,
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CXD56_DEV_STATE_STARTING,
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CXD56_DEV_STATE_STARTED,
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CXD56_DEV_STATE_STOPPING,
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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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mqd_t 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 pendingq; /* Queue of pending buffers to be sent */
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struct dq_queue_s runningq; /* Queue of buffers being played */
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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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/* enum cxd56_audio_samp_fmt_e format; */ /* Output bits per sample (16 or 24) */
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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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};
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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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85
include/nuttx/audio/cxd56.h
Normal file
85
include/nuttx/audio/cxd56.h
Normal file
@ -0,0 +1,85 @@
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/****************************************************************************
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* include/nuttx/audio/cxd56.h
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*
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* Copyright 2019 Sony Semiconductor Solutions Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_AUDIO_CXD56_H
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#define __INCLUDE_NUTTX_AUDIO_CXD56_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdint.h>
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#include <stdbool.h>
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#include <nuttx/irq.h>
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#if defined(CONFIG_AUDIO_CXD56) || defined(CONFIG_CXD56_AUDIO)
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/****************************************************************************
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* Public Types
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****************************************************************************/
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struct cxd56_lower_s
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{
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int dma_handle;
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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struct audio_lowerhalf_s;
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FAR struct audio_lowerhalf_s *
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cxd56_initialize(FAR const struct cxd56_lower_s *lower);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* CONFIG_CXD56_AUDIO */
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#endif /* __INCLUDE_NUTTX_AUDIO_CXD56_H */
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