b874d95beb
Signed-off-by: jinxiuxu <jinxiuxu@xiaomi.com>
2275 lines
65 KiB
C
2275 lines
65 KiB
C
/****************************************************************************
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* drivers/audio/es8311.c
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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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/ioctl.h>
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#include <sys/param.h>
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#include <sys/types.h>
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#include <assert.h>
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#include <debug.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <fixedmath.h>
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#include <inttypes.h>
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#include <math.h>
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#include <pthread.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <nuttx/audio/audio.h>
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#include <nuttx/audio/es8311.h>
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#include <nuttx/audio/i2s.h>
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#include <nuttx/clock.h>
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#include <nuttx/fs/fs.h>
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#include <nuttx/fs/ioctl.h>
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#include <nuttx/i2c/i2c_master.h>
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#include <nuttx/kmalloc.h>
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#include <nuttx/mqueue.h>
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#include <nuttx/queue.h>
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#include <nuttx/wqueue.h>
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#include "es8311.h"
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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#if !defined(CONFIG_ES8311_REGDUMP)
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static
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#endif /* !CONFIG_ES8311_REGDUMP */
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uint8_t es8311_readreg(FAR struct es8311_dev_s *priv, uint8_t regaddr);
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static int es8311_writereg(FAR struct es8311_dev_s *priv,
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uint8_t regaddr,
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uint16_t regval);
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#ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
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static int es8311_setvolume(FAR struct es8311_dev_s *priv,
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es_module_e module,
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uint16_t volume);
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#endif /* CONFIG_AUDIO_EXCLUDE_VOLUME */
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static int es8311_getcoeff(FAR struct es8311_dev_s *priv,
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uint32_t samplerate);
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#ifndef CONFIG_AUDIO_EXCLUDE_MUTE
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static int es8311_setmute(FAR struct es8311_dev_s *priv,
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es_module_e module,
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bool enable);
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#endif /* CONFIG_AUDIO_EXCLUDE_MUTE */
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static int es8311_setmicgain(FAR struct es8311_dev_s *priv, uint32_t gain);
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static int es8311_setbitspersample(FAR struct es8311_dev_s *priv);
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static int es8311_setsamplerate(FAR struct es8311_dev_s *priv);
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static int es8311_getcaps(FAR struct audio_lowerhalf_s *dev,
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int type,
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FAR struct audio_caps_s *caps);
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#ifdef CONFIG_AUDIO_MULTI_SESSION
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static int es8311_configure(FAR struct audio_lowerhalf_s *dev,
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FAR void *session,
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FAR const struct audio_caps_s *caps);
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#else /* !CONFIG_AUDIO_MULTI_SESSION */
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static int es8311_configure(FAR struct audio_lowerhalf_s *dev,
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FAR const struct audio_caps_s *caps);
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#endif /* !CONFIG_AUDIO_MULTI_SESSION */
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static int es8311_shutdown(FAR struct audio_lowerhalf_s *dev);
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static void es8311_processdone(FAR struct i2s_dev_s *i2s,
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FAR struct ap_buffer_s *apb,
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FAR void *arg,
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int result);
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static void es8311_returnbuffers(FAR struct es8311_dev_s *priv);
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static int es8311_processbegin(FAR struct es8311_dev_s *priv);
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#ifdef CONFIG_AUDIO_MULTI_SESSION
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static int es8311_start(FAR struct audio_lowerhalf_s *dev,
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FAR void *session);
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#else /* !CONFIG_AUDIO_MULTI_SESSION */
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static int es8311_start(FAR struct audio_lowerhalf_s *dev);
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#endif /* !CONFIG_AUDIO_MULTI_SESSION */
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#ifndef CONFIG_AUDIO_EXCLUDE_STOP
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#ifdef CONFIG_AUDIO_MULTI_SESSION
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static int es8311_stop(FAR struct audio_lowerhalf_s *dev,
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FAR void *session);
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#else /* !CONFIG_AUDIO_MULTI_SESSION */
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static int es8311_stop(FAR struct audio_lowerhalf_s *dev);
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#endif /* !CONFIG_AUDIO_MULTI_SESSION */
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#endif /* CONFIG_AUDIO_EXCLUDE_STOP */
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#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
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#ifdef CONFIG_AUDIO_MULTI_SESSION
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static int es8311_pause(FAR struct audio_lowerhalf_s *dev,
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FAR void *session);
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static int es8311_resume(FAR struct audio_lowerhalf_s *dev,
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FAR void *session);
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#else /* !CONFIG_AUDIO_MULTI_SESSION */
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static int es8311_pause(FAR struct audio_lowerhalf_s *dev);
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static int es8311_resume(FAR struct audio_lowerhalf_s *dev);
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#endif /* !CONFIG_AUDIO_MULTI_SESSION */
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#endif /* CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME */
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static int es8311_enqueuebuffer(FAR struct audio_lowerhalf_s *dev,
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FAR struct ap_buffer_s *apb);
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static int es8311_cancelbuffer(FAR struct audio_lowerhalf_s *dev,
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FAR struct ap_buffer_s *apb);
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static int es8311_ioctl(FAR struct audio_lowerhalf_s *dev,
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int cmd,
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unsigned long arg);
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#ifdef CONFIG_AUDIO_MULTI_SESSION
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static int es8311_reserve(FAR struct audio_lowerhalf_s *dev,
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FAR void **session);
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#else /* !CONFIG_AUDIO_MULTI_SESSION */
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static int es8311_reserve(FAR struct audio_lowerhalf_s *dev);
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#endif /* !CONFIG_AUDIO_MULTI_SESSION */
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#ifdef CONFIG_AUDIO_MULTI_SESSION
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static int es8311_release(FAR struct audio_lowerhalf_s *dev,
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FAR void *session);
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#else /* !CONFIG_AUDIO_MULTI_SESSION */
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static int es8311_release(FAR struct audio_lowerhalf_s *dev);
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#endif /* !CONFIG_AUDIO_MULTI_SESSION */
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static void *es8311_workerthread(pthread_addr_t pvarg);
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static void es8311_audio_output(FAR struct es8311_dev_s *priv);
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static void es8311_audio_input(FAR struct es8311_dev_s *priv);
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static void es8311_reset(FAR struct es8311_dev_s *priv);
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static int es8311_get_mclk_src(void);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const struct audio_ops_s g_audioops =
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{
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es8311_getcaps, /* getcaps */
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es8311_configure, /* configure */
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es8311_shutdown, /* shutdown */
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es8311_start, /* start */
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#ifndef CONFIG_AUDIO_EXCLUDE_STOP
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es8311_stop, /* stop */
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#endif /* CONFIG_AUDIO_EXCLUDE_STOP */
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#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
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es8311_pause, /* pause */
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es8311_resume, /* resume */
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#endif /* CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME */
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NULL, /* allocbuffer */
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NULL, /* freebuffer */
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es8311_enqueuebuffer, /* enqueue_buffer */
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es8311_cancelbuffer, /* cancel_buffer */
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es8311_ioctl, /* ioctl */
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NULL, /* read */
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NULL, /* write */
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es8311_reserve, /* reserve */
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es8311_release /* release */
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};
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: es8311_get_mclk_src
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*
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* Description:
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* Get the MCLK source.
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*
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* Returned Value:
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* ES8311_MCLK_FROM_MCLK_PIN or ES8311_MCLK_FROM_SCLK_PIN.
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*
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****************************************************************************/
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static int es8311_get_mclk_src(void)
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{
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#ifdef CONFIG_ES8311_SRC_MCLK
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return ES8311_MCLK_FROM_MCLK_PIN;
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#else
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return ES8311_MCLK_FROM_SCLK_PIN;
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#endif
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}
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/****************************************************************************
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* Name: es8311_readreg
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*
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* Description:
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* Read the specified 8-bit register from the ES8311 device through I2C.
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*
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* Input Parameters:
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* priv - A reference to the driver state structure.
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* regaddr - Address of the register to be read.
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*
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* Returned Value:
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* On success, the byte stored in the register.
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* On failure, 0.
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*
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****************************************************************************/
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#if !defined(CONFIG_ES8311_REGDUMP)
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static
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#endif /* !CONFIG_ES8311_REGDUMP */
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uint8_t es8311_readreg(FAR struct es8311_dev_s *priv, uint8_t regaddr)
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{
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int retries;
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/* Try up to three times to read the register */
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for (retries = 0; retries < 3; retries++)
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{
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struct i2c_msg_s msg[2];
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uint8_t data;
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int ret;
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/* Set up to write the address */
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msg[0].frequency = priv->lower->frequency;
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msg[0].addr = priv->lower->address;
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msg[0].flags = 0;
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msg[0].buffer = ®addr;
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msg[0].length = 1;
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/* Followed by the read data */
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msg[1].frequency = priv->lower->frequency;
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msg[1].addr = priv->lower->address;
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msg[1].flags = I2C_M_READ;
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msg[1].buffer = &data;
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msg[1].length = 12;
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/* Read the register data. The returned value is the number messages
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* completed.
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*/
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ret = I2C_TRANSFER(priv->i2c, msg, 2);
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if (ret < 0)
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{
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#ifdef CONFIG_I2C_RESET
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/* Perhaps the I2C bus is locked up? Try to shake the bus free */
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audwarn("WARNING: I2C_TRANSFER failed: %d ... Resetting\n", ret);
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ret = I2C_RESET(priv->i2c);
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if (ret < 0)
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{
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auderr("I2C_RESET failed: %d\n", ret);
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break;
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}
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#else /* !CONFIG_I2C_RESET */
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auderr("I2C_TRANSFER failed: %d\n", ret);
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#endif /* !CONFIG_I2C_RESET */
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}
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else
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{
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/* The I2C transfer was successful... break out of the loop and
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* return the value read.
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*/
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audinfo("Read: %02x -> %02x\n", regaddr, data);
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return data;
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}
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audinfo("retries=%d regaddr=%02x\n", retries, regaddr);
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}
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/* No error indication is returned on a failure... just return zero */
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return 0;
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}
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/****************************************************************************
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* Name: es8311_writereg
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*
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* Description:
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* Write the specified 8-bit register to the ES8311 device through I2C.
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*
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* Input Parameters:
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* priv - A reference to the driver state structure.
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* regaddr - Address of the register to be written.
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* regval - Value to be written.
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*
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* Returned Value:
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* Returns OK or a negated errno value on failure.
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*
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****************************************************************************/
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static int es8311_writereg(FAR struct es8311_dev_s *priv,
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uint8_t regaddr,
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uint16_t regval)
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{
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struct i2c_config_s config;
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int retries;
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/* Setup up the I2C configuration */
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config.frequency = priv->lower->frequency;
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config.address = priv->lower->address;
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config.addrlen = 7;
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/* Try up to three times to write the register */
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for (retries = 0; retries < 3; retries++)
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{
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uint8_t data[2];
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int ret;
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/* Set up the data to write */
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data[0] = regaddr;
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data[1] = regval;
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/* Read the register data. The returned value is the number messages
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* completed.
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*/
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ret = i2c_write(priv->i2c, &config, data, 2);
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if (ret < 0)
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{
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#ifdef CONFIG_I2C_RESET
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/* Perhaps the I2C bus is locked up? Try to shake the bus free */
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audwarn("WARNING: i2c_write failed: %d ... Resetting\n", ret);
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ret = I2C_RESET(priv->i2c);
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if (ret < 0)
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{
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auderr("I2C_RESET failed: %d\n", ret);
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break;
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}
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#else /* !CONFIG_I2C_RESET */
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auderr("I2C_TRANSFER failed: %d\n", ret);
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#endif /* !CONFIG_I2C_RESET */
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}
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else
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{
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/* The I2C transfer was successful... break out of the loop and
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* return.
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*/
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audinfo("Write: %02x <- %02x\n", regaddr, regval);
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return OK;
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}
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audinfo("retries=%d regaddr=%02x\n", retries, regaddr);
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}
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return -EIO;
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}
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/****************************************************************************
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* Name: es8311_setmicgain
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*
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* Description:
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* Set the microphone gain.
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*
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* Input Parameters:
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* priv - A reference to the driver state structure.
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* gain - The microphone gain to be set in the codec (0..42).
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*
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* Returned Value:
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* Returns OK or a negated errno value on failure.
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*
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****************************************************************************/
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static int es8311_setmicgain(FAR struct es8311_dev_s *priv, uint32_t gain)
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{
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int ret;
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static const es8311_mic_gain_e gain_map[] =
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{
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ES8311_MIC_GAIN_0DB,
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ES8311_MIC_GAIN_6DB,
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ES8311_MIC_GAIN_12DB,
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ES8311_MIC_GAIN_18DB,
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ES8311_MIC_GAIN_24DB,
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ES8311_MIC_GAIN_30DB,
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ES8311_MIC_GAIN_36DB,
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ES8311_MIC_GAIN_42DB
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};
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/* Our range is from 0 to 42 dB with steps of 6 dB. We map this to the
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* ES8311 gain values.
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*/
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priv->mic_gain = gain_map[MIN(gain, 42) / 6];
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ret = es8311_writereg(priv, ES8311_ADC_REG16, priv->mic_gain);
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if (ret < 0)
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{
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auderr("Failed to set mic gain: %d\n", ret);
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}
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else
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{
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audinfo("Set mic gain: %d\n", priv->mic_gain);
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}
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return ret;
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}
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/****************************************************************************
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* Name: es8311_setvolume
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*
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* Description:
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* Set the right and left volume values in the ES8311 device based on the
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* desired volume settings.
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*
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* Input Parameters:
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* priv - A reference to the driver state structure;
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* module - The module to change the volume for;
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* volume - The volume to be set in the codec (0..1000).
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*
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* Returned Value:
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* Returns OK or a negated errno value on failure.
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*
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****************************************************************************/
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#ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
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static int es8311_setvolume(FAR struct es8311_dev_s *priv,
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es_module_e module,
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uint16_t volume)
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{
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/* Convert from (0..1000) to (0..200) ln curve to avoid distortion */
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uint16_t dblvl = (int16_t) (volume ? (29 * logf(volume)) : 0);
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int ret = 0;
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/* Set the volume */
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if (module == ES_MODULE_DAC || module == ES_MODULE_ADC_DAC)
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{
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ret |= es8311_writereg(priv, ES8311_DAC_REG32, dblvl);
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priv->volume_out = volume;
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}
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if (module == ES_MODULE_ADC || module == ES_MODULE_ADC_DAC)
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{
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ret |= es8311_writereg(priv, ES8311_ADC_REG17, dblvl);
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priv->volume_in = volume;
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}
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if (ret < 0)
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{
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auderr("Failed to set volume.\n");
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return -EIO;
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}
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else
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{
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audinfo("Volume set to %d\n", volume);
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return OK;
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}
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}
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#endif /* CONFIG_AUDIO_EXCLUDE_VOLUME */
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/****************************************************************************
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* Name: es8311_getcoeff
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*
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* Description:
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* Get the coefficient values for the current MCLK and given sample rate.
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*
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* Input Parameters:
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* priv - A reference to the driver state structure.
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* samplerate - The sample rate to be set in the codec.
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*
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* Returned Value:
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* The index of the divider in the es8311_coeff_div array or -EINVAL if
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* the combination of MCLK and sample rate is not supported.
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*
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****************************************************************************/
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static int es8311_getcoeff(FAR struct es8311_dev_s *priv,
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uint32_t samplerate)
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{
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int i;
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for (i = 0; i < nitems(es8311_coeff_div); i++)
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{
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if (priv->mclk == es8311_coeff_div[i].mclk &&
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samplerate == es8311_coeff_div[i].rate)
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{
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audinfo("MCLK: %d, samplerate: %d\n", priv->mclk, samplerate);
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return i;
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}
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}
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auderr("MCLK = %d and samplerate = %d not supported.\n",
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priv->mclk, samplerate);
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return -EINVAL;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_setmute
|
|
*
|
|
* Description:
|
|
* Mute/unmute the ADC or DAC of the codec based on the current settings.
|
|
*
|
|
* Input Parameters:
|
|
* priv - A reference to the driver state structure.
|
|
* enable - Boolean to enable or disable the mute function.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_AUDIO_EXCLUDE_MUTE
|
|
static int es8311_setmute(FAR struct es8311_dev_s *priv,
|
|
es_module_e module,
|
|
bool enable)
|
|
{
|
|
uint8_t reg = 0;
|
|
int ret = 0;
|
|
|
|
audinfo("module=%d, mute=%d\n", module, (int)enable);
|
|
|
|
priv->mute = enable;
|
|
|
|
if (module == ES_MODULE_DAC || module == ES_MODULE_ADC_DAC)
|
|
{
|
|
reg = es8311_readreg(priv, ES8311_DAC_REG31) & 0x9f;
|
|
if (enable)
|
|
{
|
|
ret |= es8311_writereg(priv, ES8311_SYSTEM_REG12, 0x02);
|
|
ret |= es8311_writereg(priv, ES8311_DAC_REG31, reg | 0x60);
|
|
ret |= es8311_writereg(priv, ES8311_DAC_REG32, 0x00);
|
|
ret |= es8311_writereg(priv, ES8311_DAC_REG37, 0x08);
|
|
}
|
|
else
|
|
{
|
|
ret |= es8311_writereg(priv, ES8311_DAC_REG31, reg);
|
|
ret |= es8311_writereg(priv, ES8311_SYSTEM_REG12, 0x00);
|
|
}
|
|
}
|
|
|
|
if (module == ES_MODULE_ADC || module == ES_MODULE_ADC_DAC)
|
|
{
|
|
reg = es8311_readreg(priv, ES8311_SDPOUT_REG0A) & 0xbf;
|
|
ret |= es8311_writereg(priv, ES8311_SDPOUT_REG0A,
|
|
reg | ((int) enable << 6));
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
auderr("Failed to set mute.\n");
|
|
return -EIO;
|
|
}
|
|
else
|
|
{
|
|
audinfo("Set mute to: %d\n", (int)enable);
|
|
return OK;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_setbitspersample
|
|
*
|
|
* Description:
|
|
* Set the number of bits per sample used by the I2S driver and the codec.
|
|
*
|
|
* Input Parameters:
|
|
* priv - A reference to the driver state structure.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int es8311_setbitspersample(FAR struct es8311_dev_s *priv)
|
|
{
|
|
uint8_t reg;
|
|
uint8_t bit_config;
|
|
int ret;
|
|
|
|
DEBUGASSERT(priv && priv->lower);
|
|
|
|
switch (priv->bpsamp)
|
|
{
|
|
case 16:
|
|
bit_config = ES_WORD_LENGTH_16BITS;
|
|
break;
|
|
|
|
case 24:
|
|
bit_config = ES_WORD_LENGTH_24BITS;
|
|
break;
|
|
|
|
case 32:
|
|
bit_config = ES_WORD_LENGTH_32BITS;
|
|
break;
|
|
|
|
default:
|
|
audwarn("Data length not supported.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = I2S_RXDATAWIDTH(priv->i2s, priv->bpsamp);
|
|
if (ret < 0)
|
|
{
|
|
auderr("I2S_RXDATAWIDTH failed.\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = I2S_TXDATAWIDTH(priv->i2s, priv->bpsamp);
|
|
if (ret < 0)
|
|
{
|
|
auderr("I2S_TXDATAWIDTH failed.\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = 0;
|
|
if (priv->audio_mode == ES_MODULE_ADC ||
|
|
priv->audio_mode == ES_MODULE_ADC_DAC)
|
|
{
|
|
reg = es8311_readreg(priv, ES8311_SDPOUT_REG0A) & 0xe3;
|
|
ret |= es8311_writereg(priv, ES8311_SDPOUT_REG0A,
|
|
reg | (bit_config << 2));
|
|
}
|
|
|
|
if (priv->audio_mode == ES_MODULE_DAC ||
|
|
priv->audio_mode == ES_MODULE_ADC_DAC)
|
|
{
|
|
reg = es8311_readreg(priv, ES8311_SDPIN_REG09) & 0xe3;
|
|
ret |= es8311_writereg(priv, ES8311_SDPIN_REG09,
|
|
reg | (bit_config << 2));
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
auderr("Failed to set bits per sample\n");
|
|
return -EIO;
|
|
}
|
|
else
|
|
{
|
|
audinfo("Bits per sample set to: %d\n", priv->bpsamp);
|
|
return OK;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_setsamplerate
|
|
*
|
|
* Description:
|
|
* Sets the sample frequency for the codec ADC/DAC and the I2S driver.
|
|
*
|
|
* Input Parameters:
|
|
* priv - A reference to the driver state structure.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int es8311_setsamplerate(FAR struct es8311_dev_s *priv)
|
|
{
|
|
DEBUGASSERT(priv && priv->lower);
|
|
|
|
uint8_t regconfig;
|
|
uint8_t datmp;
|
|
int coeff_index;
|
|
int ret;
|
|
|
|
priv->mclk = I2S_GETMCLKFREQUENCY(priv->i2s);
|
|
coeff_index = es8311_getcoeff(priv, priv->samprate);
|
|
|
|
if (coeff_index < 0)
|
|
{
|
|
auderr("Failed to set sample rate: %d\n", -EINVAL);
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = I2S_RXSAMPLERATE(priv->i2s, priv->samprate);
|
|
if (ret < 0)
|
|
{
|
|
auderr("I2S_RXSAMPLERATE failed.\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = I2S_TXSAMPLERATE(priv->i2s, priv->samprate);
|
|
if (ret < 0)
|
|
{
|
|
auderr("I2S_TXSAMPLERATE failed.\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = 0;
|
|
regconfig = es8311_readreg(priv, ES8311_CLK_MANAGER_REG02) & 0x07;
|
|
regconfig |= (es8311_coeff_div[coeff_index].pre_div - 1) << 5;
|
|
|
|
datmp = 0;
|
|
switch (es8311_coeff_div[coeff_index].pre_multi)
|
|
{
|
|
case 1:
|
|
datmp = 0;
|
|
break;
|
|
case 2:
|
|
datmp = 1;
|
|
break;
|
|
case 4:
|
|
datmp = 2;
|
|
break;
|
|
case 8:
|
|
datmp = 3;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (es8311_get_mclk_src() == ES8311_MCLK_FROM_SCLK_PIN)
|
|
{
|
|
datmp = 3; /* DIG_MCLK = LRCK * 256 = BCLK * 8 */
|
|
}
|
|
|
|
regconfig |= (datmp) << 3;
|
|
ret |= es8311_writereg(priv, ES8311_CLK_MANAGER_REG02, regconfig);
|
|
|
|
regconfig = es8311_readreg(priv, ES8311_CLK_MANAGER_REG05) & 0x00;
|
|
regconfig |= (es8311_coeff_div[coeff_index].adc_div - 1) << 4;
|
|
regconfig |= (es8311_coeff_div[coeff_index].dac_div - 1) << 0;
|
|
ret |= es8311_writereg(priv, ES8311_CLK_MANAGER_REG05, regconfig);
|
|
|
|
regconfig = es8311_readreg(priv, ES8311_CLK_MANAGER_REG03) & 0x80;
|
|
regconfig |= es8311_coeff_div[coeff_index].fs_mode << 6;
|
|
regconfig |= es8311_coeff_div[coeff_index].adc_osr << 0;
|
|
ret |= es8311_writereg(priv, ES8311_CLK_MANAGER_REG03, regconfig);
|
|
|
|
regconfig = es8311_readreg(priv, ES8311_CLK_MANAGER_REG04) & 0x80;
|
|
regconfig |= es8311_coeff_div[coeff_index].dac_osr << 0;
|
|
ret |= es8311_writereg(priv, ES8311_CLK_MANAGER_REG04, regconfig);
|
|
|
|
regconfig = es8311_readreg(priv, ES8311_CLK_MANAGER_REG07) & 0xc0;
|
|
regconfig |= es8311_coeff_div[coeff_index].lrck_h << 0;
|
|
ret |= es8311_writereg(priv, ES8311_CLK_MANAGER_REG07, regconfig);
|
|
|
|
regconfig = es8311_readreg(priv, ES8311_CLK_MANAGER_REG08) & 0x00;
|
|
regconfig |= es8311_coeff_div[coeff_index].lrck_l << 0;
|
|
ret |= es8311_writereg(priv, ES8311_CLK_MANAGER_REG08, regconfig);
|
|
|
|
regconfig = es8311_readreg(priv, ES8311_CLK_MANAGER_REG06) & 0xe0;
|
|
if (es8311_coeff_div[coeff_index].bclk_div < 19)
|
|
{
|
|
regconfig |= (es8311_coeff_div[coeff_index].bclk_div - 1) << 0;
|
|
}
|
|
else
|
|
{
|
|
regconfig |= (es8311_coeff_div[coeff_index].bclk_div) << 0;
|
|
}
|
|
|
|
ret |= es8311_writereg(priv, ES8311_CLK_MANAGER_REG06, regconfig);
|
|
|
|
if (ret < 0)
|
|
{
|
|
auderr("Failed to set sample rate.\n");
|
|
return -EIO;
|
|
}
|
|
else
|
|
{
|
|
audinfo("Sample rate set to: %d.\n", priv->samprate);
|
|
return OK;
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_getcaps
|
|
*
|
|
* Description:
|
|
* Get the audio device capabilities.
|
|
*
|
|
* Input Parameters:
|
|
* dev - A reference to the lower half state structure.
|
|
* type - The type of query.
|
|
* caps - A reference to an audio caps structure.
|
|
*
|
|
* Returned Value:
|
|
* Length of the caps structure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int es8311_getcaps(FAR struct audio_lowerhalf_s *dev, int type,
|
|
FAR struct audio_caps_s *caps)
|
|
{
|
|
/* Validate the structure */
|
|
|
|
DEBUGASSERT(caps && caps->ac_len >= sizeof(struct audio_caps_s));
|
|
audinfo("getcaps: type=%d ac_type=%d\n", type, caps->ac_type);
|
|
|
|
uint16_t *ptr;
|
|
|
|
/* Fill in the caller's structure based on requested info */
|
|
|
|
caps->ac_format.hw = 0;
|
|
caps->ac_controls.w = 0;
|
|
|
|
switch (caps->ac_type)
|
|
{
|
|
/* Caller is querying for the types of units we support */
|
|
|
|
case AUDIO_TYPE_QUERY:
|
|
|
|
/* Provide our overall capabilities. The interfacing software
|
|
* must then call us back for specific info for each capability.
|
|
*/
|
|
|
|
caps->ac_channels = 1; /* Mono output */
|
|
|
|
if (caps->ac_subtype == AUDIO_TYPE_QUERY)
|
|
{
|
|
/* The types of audio units we implement */
|
|
|
|
caps->ac_controls.b[0] = AUDIO_TYPE_INPUT |
|
|
AUDIO_TYPE_OUTPUT |
|
|
AUDIO_TYPE_FEATURE;
|
|
break;
|
|
}
|
|
|
|
caps->ac_controls.b[0] = AUDIO_SUBFMT_END;
|
|
|
|
break;
|
|
|
|
/* Provide capabilities of our OUTPUT unit */
|
|
|
|
case AUDIO_TYPE_OUTPUT:
|
|
|
|
caps->ac_channels = 1;
|
|
|
|
if (caps->ac_subtype == AUDIO_TYPE_QUERY)
|
|
{
|
|
/* Report the Sample rates we support */
|
|
|
|
/* 8kHz is hardware dependent */
|
|
|
|
ptr = (uint16_t *)caps->ac_controls.b;
|
|
*ptr =
|
|
AUDIO_SAMP_RATE_11K | AUDIO_SAMP_RATE_16K |
|
|
AUDIO_SAMP_RATE_22K | AUDIO_SAMP_RATE_32K |
|
|
AUDIO_SAMP_RATE_44K | AUDIO_SAMP_RATE_48K;
|
|
break;
|
|
}
|
|
|
|
break;
|
|
|
|
case AUDIO_TYPE_INPUT:
|
|
|
|
caps->ac_channels = 1;
|
|
|
|
if (caps->ac_subtype == AUDIO_TYPE_QUERY)
|
|
{
|
|
/* Report supported input sample rates */
|
|
|
|
ptr = (uint16_t *)caps->ac_controls.b;
|
|
*ptr =
|
|
AUDIO_SAMP_RATE_11K | AUDIO_SAMP_RATE_16K |
|
|
AUDIO_SAMP_RATE_22K | AUDIO_SAMP_RATE_32K |
|
|
AUDIO_SAMP_RATE_44K | AUDIO_SAMP_RATE_48K;
|
|
break;
|
|
}
|
|
|
|
break;
|
|
|
|
/* Provide capabilities of our FEATURE units */
|
|
|
|
case AUDIO_TYPE_FEATURE:
|
|
|
|
/* If the sub-type is UNDEF, then report the Feature Units we
|
|
* support.
|
|
*/
|
|
|
|
if (caps->ac_subtype == AUDIO_FU_UNDEF)
|
|
{
|
|
/* Fill in the ac_controls section with the Feature Units we
|
|
* have.
|
|
*/
|
|
|
|
caps->ac_controls.b[0] = AUDIO_FU_VOLUME | AUDIO_FU_MUTE;
|
|
caps->ac_controls.b[1] = (AUDIO_FU_INP_GAIN) >> 8;
|
|
}
|
|
|
|
break;
|
|
|
|
/* All others we don't support */
|
|
|
|
default:
|
|
|
|
/* Zero out the fields to indicate no support */
|
|
|
|
caps->ac_subtype = 0;
|
|
caps->ac_channels = 0;
|
|
|
|
break;
|
|
}
|
|
|
|
/* Return the length of the audio_caps_s struct for validation of
|
|
* proper Audio device type.
|
|
*/
|
|
|
|
return caps->ac_len;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_configure
|
|
*
|
|
* Description:
|
|
* Configure the audio device for the specified mode of operation.
|
|
*
|
|
* Input Parameters:
|
|
* dev - A reference to the lower half state structure.
|
|
* session - The current audio session.
|
|
* caps - A reference to an audio caps structure.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_AUDIO_MULTI_SESSION
|
|
static int es8311_configure(FAR struct audio_lowerhalf_s *dev,
|
|
FAR void *session,
|
|
FAR const struct audio_caps_s *caps)
|
|
#else /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
static int es8311_configure(FAR struct audio_lowerhalf_s *dev,
|
|
FAR const struct audio_caps_s *caps)
|
|
#endif /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
{
|
|
FAR struct es8311_dev_s *priv = (FAR struct es8311_dev_s *)dev;
|
|
int ret = OK;
|
|
|
|
DEBUGASSERT(priv != NULL && caps != NULL);
|
|
audinfo("configure: ac_type: %d\n", caps->ac_type);
|
|
|
|
/* Process the configure operation */
|
|
|
|
switch (caps->ac_type)
|
|
{
|
|
case AUDIO_TYPE_FEATURE:
|
|
audinfo(" AUDIO_TYPE_FEATURE\n");
|
|
|
|
/* Process based on Feature Unit */
|
|
|
|
switch (caps->ac_format.hw)
|
|
{
|
|
#ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
|
|
case AUDIO_FU_VOLUME:
|
|
{
|
|
/* Set the volume */
|
|
|
|
uint16_t volume = caps->ac_controls.hw[0];
|
|
audinfo(" Volume: %d\n", volume);
|
|
|
|
if (volume >= 0 && volume <= 1000)
|
|
{
|
|
es8311_setvolume(priv, priv->audio_mode, volume);
|
|
break;
|
|
}
|
|
|
|
ret = -EDOM;
|
|
}
|
|
break;
|
|
#endif /* CONFIG_AUDIO_EXCLUDE_VOLUME */
|
|
|
|
#ifndef CONFIG_AUDIO_EXCLUDE_MUTE
|
|
case AUDIO_FU_MUTE:
|
|
{
|
|
/* Mute/Unmute */
|
|
|
|
bool mute = (bool)caps->ac_controls.hw[0];
|
|
audinfo(" Mute: %d\n", mute);
|
|
|
|
es8311_setmute(priv, ES_MODULE_DAC, mute);
|
|
}
|
|
break;
|
|
#endif /* CONFIG_AUDIO_EXCLUDE_MUTE */
|
|
|
|
case AUDIO_FU_INP_GAIN:
|
|
{
|
|
/* Set the mic gain */
|
|
|
|
uint32_t mic_gain = caps->ac_controls.hw[0];
|
|
audinfo(" Mic gain: %" PRIu32 "\n", mic_gain);
|
|
|
|
es8311_setmicgain(priv, mic_gain);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
auderr(" Unrecognized feature unit\n");
|
|
ret = -ENOTTY;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case AUDIO_TYPE_OUTPUT:
|
|
{
|
|
audinfo(" AUDIO_TYPE_OUTPUT:\n");
|
|
audinfo(" Number of channels: %u\n", caps->ac_channels);
|
|
audinfo(" Sample rate: %u\n", caps->ac_controls.hw[0]);
|
|
audinfo(" Sample width: %u\n", caps->ac_controls.b[2]);
|
|
|
|
/* Verify that all of the requested values are supported */
|
|
|
|
ret = -ERANGE;
|
|
|
|
/* The codec can take stereo audio and play only one channel */
|
|
|
|
if (caps->ac_channels != 1 && caps->ac_channels != 2)
|
|
{
|
|
auderr("Unsupported number of channels: %d\n",
|
|
caps->ac_channels);
|
|
break;
|
|
}
|
|
|
|
if (caps->ac_controls.b[2] != 16 &&
|
|
caps->ac_controls.b[2] != 24 &&
|
|
caps->ac_controls.b[2] != 32)
|
|
{
|
|
auderr("Unsupported bits per sample: %d\n",
|
|
caps->ac_controls.b[2]);
|
|
break;
|
|
}
|
|
|
|
es8311_audio_output(priv);
|
|
es8311_reset(priv);
|
|
|
|
/* Save the current stream configuration */
|
|
|
|
priv->samprate = caps->ac_controls.hw[0];
|
|
priv->bpsamp = caps->ac_controls.b[2];
|
|
|
|
ret = es8311_setsamplerate(priv) == -ENOTTY ? OK : ret;
|
|
if (ret < 0)
|
|
{
|
|
break;
|
|
}
|
|
|
|
ret = es8311_setbitspersample(priv) == -ENOTTY ? OK : ret;
|
|
}
|
|
break;
|
|
|
|
case AUDIO_TYPE_INPUT:
|
|
{
|
|
audinfo(" AUDIO_TYPE_INPUT:\n");
|
|
audinfo(" Number of channels: %u\n", caps->ac_channels);
|
|
audinfo(" Sample rate: %u\n", caps->ac_controls.hw[0]);
|
|
audinfo(" Sample width: %u\n", caps->ac_controls.b[2]);
|
|
|
|
/* Verify that all of the requested values are supported */
|
|
|
|
ret = -ERANGE;
|
|
|
|
/* The codec can take stereo audio and play only one channel */
|
|
|
|
if (caps->ac_channels != 1 && caps->ac_channels != 2)
|
|
{
|
|
auderr("Unsupported number of channels: %d\n",
|
|
caps->ac_channels);
|
|
break;
|
|
}
|
|
|
|
if (caps->ac_controls.b[2] != 16 &&
|
|
caps->ac_controls.b[2] != 24 &&
|
|
caps->ac_controls.b[2] != 32)
|
|
{
|
|
auderr("Unsupported bits per sample: %d\n",
|
|
caps->ac_controls.b[2]);
|
|
break;
|
|
}
|
|
|
|
es8311_audio_input(priv);
|
|
es8311_reset(priv);
|
|
|
|
/* Save the current stream configuration */
|
|
|
|
priv->samprate = caps->ac_controls.hw[0];
|
|
priv->bpsamp = caps->ac_controls.b[2];
|
|
|
|
ret = es8311_setsamplerate(priv) == -ENOTTY ? OK : ret;
|
|
if (ret != OK)
|
|
{
|
|
break;
|
|
}
|
|
|
|
ret = es8311_setbitspersample(priv) == -ENOTTY ? OK : ret;
|
|
}
|
|
break;
|
|
|
|
case AUDIO_TYPE_PROCESSING:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_shutdown
|
|
*
|
|
* Description:
|
|
* Shutdown the ES8311 chip and reset it.
|
|
*
|
|
* Input Parameters:
|
|
* dev - A reference to the lower half state structure.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int es8311_shutdown(FAR struct audio_lowerhalf_s *dev)
|
|
{
|
|
FAR struct es8311_dev_s *priv = (FAR struct es8311_dev_s *)dev;
|
|
|
|
DEBUGASSERT(priv);
|
|
|
|
audinfo("Shutdown triggered\n");
|
|
|
|
/* Now issue a software reset. This puts all ES8311 registers back in
|
|
* their default state.
|
|
*/
|
|
|
|
es8311_reset(priv);
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_processdone
|
|
*
|
|
* Description:
|
|
* This is the I2S callback function that is invoked when the transfer
|
|
* completes.
|
|
*
|
|
* Input Parameters:
|
|
* i2s - A reference to the I2S interface.
|
|
* apb - A reference to the audio pipeline buffer.
|
|
* arg - A void reference to the driver state structure.
|
|
* result - The result of the last transfer.
|
|
*
|
|
* Returned Value:
|
|
* None.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void es8311_processdone(FAR struct i2s_dev_s *i2s,
|
|
FAR struct ap_buffer_s *apb,
|
|
FAR void *arg,
|
|
int result)
|
|
{
|
|
FAR struct es8311_dev_s *priv = (FAR struct es8311_dev_s *)arg;
|
|
struct audio_msg_s msg;
|
|
irqstate_t flags;
|
|
int ret;
|
|
|
|
DEBUGASSERT(i2s && priv && priv->running && apb);
|
|
audinfo("Transfer done: apb=%p inflight=%d result=%d\n",
|
|
apb, priv->inflight, result);
|
|
|
|
/* We do not place any restriction on the context in which this function
|
|
* is called. It may be called from an interrupt handler. Therefore, the
|
|
* doneq and in-flight values might be accessed from the interrupt level.
|
|
* Not the best design. But we will use interrupt controls to protect
|
|
* against that possibility.
|
|
*/
|
|
|
|
flags = enter_critical_section();
|
|
|
|
/* Add the completed buffer to the end of our doneq. We do not yet
|
|
* decrement the reference count.
|
|
*/
|
|
|
|
dq_addlast((FAR dq_entry_t *)apb, &priv->doneq);
|
|
|
|
/* And decrement the number of buffers in-flight */
|
|
|
|
DEBUGASSERT(priv->inflight > 0);
|
|
priv->inflight--;
|
|
|
|
/* Save the result of the transfer */
|
|
|
|
priv->result = result;
|
|
leave_critical_section(flags);
|
|
|
|
/* Now send a message to the worker thread, informing it that there are
|
|
* buffers in the done queue that need to be cleaned up.
|
|
*/
|
|
|
|
msg.msg_id = AUDIO_MSG_COMPLETE;
|
|
ret = file_mq_send(&priv->mq, (FAR const char *)&msg, sizeof(msg),
|
|
CONFIG_ES8311_MSG_PRIO);
|
|
if (ret < 0)
|
|
{
|
|
auderr("file_mq_send failed: %d\n", ret);
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_returnbuffers
|
|
*
|
|
* Description:
|
|
* This function is called after the completion of one or more data
|
|
* transfers. This function will empty the done queue and release our
|
|
* reference to each buffer.
|
|
*
|
|
* Input Parameters:
|
|
* priv - A reference to the driver state structure.
|
|
*
|
|
* Returned Value:
|
|
* None.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void es8311_returnbuffers(FAR struct es8311_dev_s *priv)
|
|
{
|
|
FAR struct ap_buffer_s *apb;
|
|
irqstate_t flags;
|
|
|
|
/* The doneq and in-flight values might be accessed from the interrupt
|
|
* level in some implementations. Not the best design. But we will
|
|
* use interrupt controls to protect against that possibility.
|
|
*/
|
|
|
|
flags = enter_critical_section();
|
|
while (dq_peek(&priv->doneq) != NULL)
|
|
{
|
|
/* Take the next buffer from the queue of completed transfers */
|
|
|
|
apb = (FAR struct ap_buffer_s *)dq_remfirst(&priv->doneq);
|
|
leave_critical_section(flags);
|
|
|
|
audinfo("Returning: apb=%p curbyte=%d nbytes=%d flags=%04x\n",
|
|
apb, apb->curbyte, apb->nbytes, apb->flags);
|
|
|
|
/* Are we returning the final buffer in the stream? */
|
|
|
|
if ((apb->flags & AUDIO_APB_FINAL) != 0)
|
|
{
|
|
/* Both the pending and the done queues should be empty and there
|
|
* should be no buffers in-flight.
|
|
*/
|
|
|
|
DEBUGASSERT(dq_empty(&priv->doneq) && dq_empty(&priv->pendq) &&
|
|
priv->inflight == 0);
|
|
|
|
/* Set the terminating flag. This will, eventually, cause the
|
|
* worker thread to exit (if it is not already terminating).
|
|
*/
|
|
|
|
audinfo("Terminating\n");
|
|
priv->terminating = true;
|
|
}
|
|
|
|
/* Release our reference to the audio buffer */
|
|
|
|
apb_free(apb);
|
|
|
|
/* Send the buffer back up to the previous level. */
|
|
|
|
#ifdef CONFIG_AUDIO_MULTI_SESSION
|
|
priv->dev.upper(priv->dev.priv, AUDIO_CALLBACK_DEQUEUE, apb, OK, NULL);
|
|
#else /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
priv->dev.upper(priv->dev.priv, AUDIO_CALLBACK_DEQUEUE, apb, OK);
|
|
#endif /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
flags = enter_critical_section();
|
|
}
|
|
|
|
leave_critical_section(flags);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_processbegin
|
|
*
|
|
* Description:
|
|
* Start the transfer an audio buffer to the ES8311 via I2S. This
|
|
* will not wait for the transfer to complete but will return immediately.
|
|
* the es8311_processdone called will be invoked when the transfer
|
|
* completes, stimulating the worker thread to call this function again.
|
|
*
|
|
* Input Parameters:
|
|
* priv - A reference to the driver state structure.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int es8311_processbegin(FAR struct es8311_dev_s *priv)
|
|
{
|
|
FAR struct ap_buffer_s *apb;
|
|
irqstate_t flags;
|
|
uint32_t timeout;
|
|
int ret;
|
|
|
|
/* Loop while there are audio buffers to be sent and we have few than
|
|
* CONFIG_ES8311_INFLIGHT then "in-flight"
|
|
*
|
|
* The 'inflight' value might be modified from the interrupt level in some
|
|
* implementations. We will use interrupt controls to protect against
|
|
* that possibility.
|
|
*
|
|
* The 'pendq', on the other hand, is protected via a mutex. Let's
|
|
* hold the mutex while we are busy here and disable the interrupts
|
|
* only while accessing 'inflight'.
|
|
*/
|
|
|
|
ret = nxmutex_lock(&priv->pendlock);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
while (priv->inflight < CONFIG_ES8311_INFLIGHT &&
|
|
dq_peek(&priv->pendq) != NULL && !priv->paused)
|
|
{
|
|
/* Take next buffer from the queue of pending transfers */
|
|
|
|
apb = (FAR struct ap_buffer_s *)dq_remfirst(&priv->pendq);
|
|
audinfo("Transferring apb=%p, size=%d inflight=%d\n",
|
|
apb, apb->nbytes, priv->inflight);
|
|
|
|
/* Increment the number of buffers in-flight before sending in order
|
|
* to avoid a possible race condition.
|
|
*/
|
|
|
|
flags = enter_critical_section();
|
|
priv->inflight++;
|
|
leave_critical_section(flags);
|
|
|
|
/* Send the entire audio buffer via I2S. What is a reasonable timeout
|
|
* to use? This would depend on the bit rate and size of the buffer.
|
|
*
|
|
* Samples in the buffer (samples):
|
|
* = buffer_size * 8 / bpsamp
|
|
* Sample rate (samples/second):
|
|
* = samplerate * nchannels
|
|
* Expected transfer time (seconds):
|
|
* = (buffer_size * 8) / bpsamp / samplerate
|
|
*
|
|
* We will set the timeout about twice that.
|
|
*
|
|
* NOTES:
|
|
* - The multiplier of 8 becomes 16000 for 2x and units of
|
|
* milliseconds.
|
|
* - 16000 is a approximately 16384 (1 << 14).
|
|
* So this can be simplifies to (milliseconds):
|
|
*
|
|
* = (buffer_size << 14) / bpsamp / samplerate
|
|
*/
|
|
|
|
timeout = MSEC2TICK(((uint32_t)(apb->nbytes - apb->curbyte) << 14) /
|
|
(uint32_t)priv->samprate / (uint32_t)priv->bpsamp);
|
|
|
|
if (priv->audio_mode == ES_MODULE_DAC)
|
|
{
|
|
ret = I2S_SEND(priv->i2s, apb, es8311_processdone,
|
|
priv, timeout);
|
|
}
|
|
else
|
|
{
|
|
ret = I2S_RECEIVE(priv->i2s, apb, es8311_processdone,
|
|
priv, timeout);
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
auderr("I2S transfer failed: %d\n", ret);
|
|
break;
|
|
}
|
|
}
|
|
|
|
nxmutex_unlock(&priv->pendlock);
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_start
|
|
*
|
|
* Description:
|
|
* Start the configured operation (audio streaming, volume enabled, etc.).
|
|
*
|
|
* Input Parameters:
|
|
* dev - A reference to the lower half state structure.
|
|
* session - The current audio session.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_AUDIO_MULTI_SESSION
|
|
static int es8311_start(FAR struct audio_lowerhalf_s *dev, FAR void *session)
|
|
#else /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
static int es8311_start(FAR struct audio_lowerhalf_s *dev)
|
|
#endif /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
{
|
|
FAR struct es8311_dev_s *priv = (FAR struct es8311_dev_s *)dev;
|
|
struct sched_param sparam;
|
|
struct mq_attr attr;
|
|
pthread_attr_t tattr;
|
|
FAR void *value;
|
|
int ret = OK;
|
|
uint8_t dac_iface;
|
|
uint8_t adc_iface;
|
|
|
|
audinfo("ES8311 Start\n");
|
|
|
|
if (priv->audio_mode == ES_MODULE_LINE)
|
|
{
|
|
auderr("The codec ES8311 doesn't support ES_MODULE_LINE mode");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (priv->audio_mode == ES_MODULE_ADC ||
|
|
priv->audio_mode == ES_MODULE_ADC_DAC)
|
|
{
|
|
adc_iface = es8311_readreg(priv, ES8311_SDPOUT_REG0A) & 0xbf;
|
|
ret |= es8311_writereg(priv, ES8311_SDPOUT_REG0A, adc_iface);
|
|
}
|
|
|
|
if (priv->audio_mode == ES_MODULE_DAC ||
|
|
priv->audio_mode == ES_MODULE_ADC_DAC)
|
|
{
|
|
dac_iface = es8311_readreg(priv, ES8311_SDPIN_REG09) & 0xbf;
|
|
ret |= es8311_writereg(priv, ES8311_SDPIN_REG09, dac_iface);
|
|
}
|
|
|
|
ret |= es8311_writereg(priv, ES8311_ADC_REG17, 0xbf);
|
|
ret |= es8311_writereg(priv, ES8311_SYSTEM_REG0E, 0x02);
|
|
ret |= es8311_writereg(priv, ES8311_SYSTEM_REG12, 0x00);
|
|
ret |= es8311_writereg(priv, ES8311_SYSTEM_REG14, 0x1a);
|
|
|
|
ret |= es8311_writereg(priv, ES8311_SYSTEM_REG0D, 0x01);
|
|
ret |= es8311_writereg(priv, ES8311_ADC_REG15, 0x40);
|
|
ret |= es8311_writereg(priv, ES8311_DAC_REG37, 0x48);
|
|
ret |= es8311_writereg(priv, ES8311_GP_REG45, 0x00);
|
|
|
|
/* Set internal reference signal (ADCL + DACR) */
|
|
|
|
ret |= es8311_writereg(priv, ES8311_GPIO_REG44, 0x50);
|
|
|
|
if (ret < 0)
|
|
{
|
|
auderr("Failed to start operation.\n");
|
|
return -EIO;
|
|
}
|
|
else
|
|
{
|
|
audinfo("Operation has been started.\n");
|
|
}
|
|
|
|
/* Create a message queue for the worker thread */
|
|
|
|
snprintf(priv->mqname, sizeof(priv->mqname), "/regconfig/%" PRIXPTR,
|
|
(uintptr_t)priv);
|
|
|
|
attr.mq_maxmsg = 16;
|
|
attr.mq_msgsize = sizeof(struct audio_msg_s);
|
|
attr.mq_curmsgs = 0;
|
|
attr.mq_flags = 0;
|
|
|
|
ret = file_mq_open(&priv->mq, priv->mqname,
|
|
O_RDWR | O_CREAT, 0644, &attr);
|
|
if (ret < 0)
|
|
{
|
|
/* Error creating message queue! */
|
|
|
|
auderr("Couldn't allocate message queue\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Join any old worker thread we had created to prevent a memory leak */
|
|
|
|
if (priv->threadid != 0)
|
|
{
|
|
audinfo("Joining old thread\n");
|
|
pthread_join(priv->threadid, &value);
|
|
}
|
|
|
|
/* Start our thread for processing device data */
|
|
|
|
pthread_attr_init(&tattr);
|
|
sparam.sched_priority = sched_get_priority_max(SCHED_FIFO) - 3;
|
|
pthread_attr_setschedparam(&tattr, &sparam);
|
|
pthread_attr_setstacksize(&tattr, CONFIG_ES8311_WORKER_STACKSIZE);
|
|
|
|
audinfo("Starting worker thread\n");
|
|
ret = pthread_create(&priv->threadid, &tattr, es8311_workerthread,
|
|
(pthread_addr_t)priv);
|
|
if (ret != OK)
|
|
{
|
|
auderr("pthread_create failed: %d\n", ret);
|
|
}
|
|
else
|
|
{
|
|
pthread_setname_np(priv->threadid, "es8311");
|
|
audinfo("Created worker thread\n");
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_stop
|
|
*
|
|
* Description: Stop the configured operation (audio streaming, volume
|
|
* disabled, etc.).
|
|
*
|
|
* Input Parameters:
|
|
* dev - A reference to the lower half state structure.
|
|
* session - The current audio session.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_AUDIO_EXCLUDE_STOP
|
|
#ifdef CONFIG_AUDIO_MULTI_SESSION
|
|
static int es8311_stop(FAR struct audio_lowerhalf_s *dev, FAR void *session)
|
|
#else /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
static int es8311_stop(FAR struct audio_lowerhalf_s *dev)
|
|
#endif /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
{
|
|
FAR struct es8311_dev_s *priv = (FAR struct es8311_dev_s *)dev;
|
|
struct audio_msg_s term_msg;
|
|
FAR void *value;
|
|
int ret = 0;
|
|
uint8_t dac_iface;
|
|
uint8_t adc_iface;
|
|
|
|
audinfo("ES8311 Stop\n");
|
|
|
|
if (priv->audio_mode == ES_MODULE_ADC ||
|
|
priv->audio_mode == ES_MODULE_ADC_DAC)
|
|
{
|
|
adc_iface = es8311_readreg(priv, ES8311_SDPOUT_REG0A) | 0x40;
|
|
ret |= es8311_writereg(priv, ES8311_SDPOUT_REG0A, adc_iface);
|
|
}
|
|
|
|
if (priv->audio_mode == ES_MODULE_DAC ||
|
|
priv->audio_mode == ES_MODULE_ADC_DAC)
|
|
{
|
|
dac_iface = es8311_readreg(priv, ES8311_SDPIN_REG09) | 0x40;
|
|
ret |= es8311_writereg(priv, ES8311_SDPIN_REG09, dac_iface);
|
|
}
|
|
|
|
ret |= es8311_writereg(priv, ES8311_DAC_REG32, 0x00);
|
|
ret |= es8311_writereg(priv, ES8311_ADC_REG17, 0x00);
|
|
ret |= es8311_writereg(priv, ES8311_SYSTEM_REG0E, 0xff);
|
|
ret |= es8311_writereg(priv, ES8311_SYSTEM_REG12, 0x02);
|
|
ret |= es8311_writereg(priv, ES8311_SYSTEM_REG14, 0x00);
|
|
ret |= es8311_writereg(priv, ES8311_SYSTEM_REG0D, 0xfa);
|
|
ret |= es8311_writereg(priv, ES8311_ADC_REG15, 0x00);
|
|
ret |= es8311_writereg(priv, ES8311_DAC_REG37, 0x08);
|
|
ret |= es8311_writereg(priv, ES8311_GP_REG45, 0x01);
|
|
|
|
/* Send a message to stop all audio streaming */
|
|
|
|
term_msg.msg_id = AUDIO_MSG_STOP;
|
|
term_msg.u.data = 0;
|
|
file_mq_send(&priv->mq, (FAR const char *)&term_msg, sizeof(term_msg),
|
|
CONFIG_ES8311_MSG_PRIO);
|
|
|
|
/* Join the worker thread */
|
|
|
|
pthread_join(priv->threadid, &value);
|
|
priv->threadid = 0;
|
|
|
|
es8311_dump_registers(&priv->dev, "After stop");
|
|
|
|
if (ret < 0)
|
|
{
|
|
auderr("Failed to stop operation.\n");
|
|
}
|
|
else
|
|
{
|
|
audinfo("Operation has been stopped.\n");
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#endif /* CONFIG_AUDIO_EXCLUDE_STOP */
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_pause
|
|
*
|
|
* Description: Pauses the playback.
|
|
*
|
|
* Input Parameters:
|
|
* dev - A reference to the lower half state structure.
|
|
* session - The current audio session.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
|
|
#ifdef CONFIG_AUDIO_MULTI_SESSION
|
|
static int es8311_pause(FAR struct audio_lowerhalf_s *dev, FAR void *session)
|
|
#else /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
static int es8311_pause(FAR struct audio_lowerhalf_s *dev)
|
|
#endif /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
{
|
|
FAR struct es8311_dev_s *priv = (FAR struct es8311_dev_s *)dev;
|
|
int ret = OK;
|
|
|
|
audinfo("ES8311 Pause\n");
|
|
|
|
if (priv->running && !priv->paused)
|
|
{
|
|
priv->paused = true;
|
|
#ifndef CONFIG_AUDIO_EXCLUDE_MUTE
|
|
ret = es8311_setmute(priv, priv->audio_mode, true);
|
|
#endif
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
auderr("Failed to pause operation.\n");
|
|
}
|
|
else
|
|
{
|
|
audinfo("Operation has been paused.\n");
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#endif /* CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME */
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_resume
|
|
*
|
|
* Description: Resumes the playback.
|
|
*
|
|
* Input Parameters:
|
|
* dev - A reference to the lower half state structure.
|
|
* session - The current audio session.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
|
|
#ifdef CONFIG_AUDIO_MULTI_SESSION
|
|
static int es8311_resume(FAR struct audio_lowerhalf_s *dev,
|
|
FAR void *session)
|
|
#else /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
static int es8311_resume(FAR struct audio_lowerhalf_s *dev)
|
|
#endif /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
{
|
|
FAR struct es8311_dev_s *priv = (FAR struct es8311_dev_s *)dev;
|
|
int ret = OK;
|
|
|
|
audinfo("ES8311 Resume\n");
|
|
|
|
if (priv->running && priv->paused)
|
|
{
|
|
priv->paused = false;
|
|
#ifndef CONFIG_AUDIO_EXCLUDE_MUTE
|
|
ret = es8311_setmute(priv, priv->audio_mode, false);
|
|
#endif /* CONFIG_AUDIO_EXCLUDE_MUTE */
|
|
es8311_processbegin(priv);
|
|
}
|
|
|
|
if (ret < 0)
|
|
{
|
|
auderr("Failed to resume operation.\n");
|
|
}
|
|
else
|
|
{
|
|
audinfo("Operation has been resumed.\n");
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#endif /* CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME */
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_enqueuebuffer
|
|
*
|
|
* Description:
|
|
* Enqueue an Audio Pipeline Buffer for processing.
|
|
*
|
|
* Input Parameters:
|
|
* dev - A reference to the lower half state structure.
|
|
* apb - A reference to the audio pipeline buffer.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int es8311_enqueuebuffer(FAR struct audio_lowerhalf_s *dev,
|
|
FAR struct ap_buffer_s *apb)
|
|
{
|
|
FAR struct es8311_dev_s *priv = (FAR struct es8311_dev_s *)dev;
|
|
struct audio_msg_s term_msg;
|
|
int ret;
|
|
|
|
audinfo("Enqueueing: apb=%p curbyte=%d nbytes=%d flags=%04x\n",
|
|
apb, apb->curbyte, apb->nbytes, apb->flags);
|
|
|
|
ret = nxmutex_lock(&priv->pendlock);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
/* Take a reference on the new audio buffer */
|
|
|
|
apb_reference(apb);
|
|
|
|
/* Add the new buffer to the tail of pending audio buffers */
|
|
|
|
dq_addlast(&apb->dq_entry, &priv->pendq);
|
|
nxmutex_unlock(&priv->pendlock);
|
|
|
|
/* Send a message to the worker thread indicating that a new buffer has
|
|
* been enqueued. If mq is NULL, then the playing has not yet started.
|
|
* In that case we are just "priming the pump" and we don't need to send
|
|
* any message.
|
|
*/
|
|
|
|
ret = OK;
|
|
if (priv->mq.f_inode != NULL)
|
|
{
|
|
term_msg.msg_id = AUDIO_MSG_ENQUEUE;
|
|
term_msg.u.data = 0;
|
|
|
|
ret = file_mq_send(&priv->mq, (FAR const char *)&term_msg,
|
|
sizeof(term_msg), CONFIG_ES8311_MSG_PRIO);
|
|
if (ret < 0)
|
|
{
|
|
auderr("file_mq_send failed: %d\n", ret);
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_cancelbuffer
|
|
*
|
|
* Description: Called when an enqueued buffer is being cancelled.
|
|
*
|
|
* Input Parameters:
|
|
* dev - A reference to the lower half state structure.
|
|
* apb - A reference to the audio pipeline buffer.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int es8311_cancelbuffer(FAR struct audio_lowerhalf_s *dev,
|
|
FAR struct ap_buffer_s *apb)
|
|
{
|
|
audinfo("Cancelled apb=%p\n", apb);
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_ioctl
|
|
*
|
|
* Description: Perform a device IOCTL.
|
|
*
|
|
* Input Parameters:
|
|
* dev - A reference to the lower half state structure.
|
|
* cmd - The IOCTL command.
|
|
* arg - The argument of the IOCTL command.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int es8311_ioctl(FAR struct audio_lowerhalf_s *dev, int cmd,
|
|
unsigned long arg)
|
|
{
|
|
int ret = OK;
|
|
#ifdef CONFIG_AUDIO_DRIVER_SPECIFIC_BUFFERS
|
|
FAR struct ap_buffer_info_s *bufinfo;
|
|
#endif /* CONFIG_AUDIO_DRIVER_SPECIFIC_BUFFERS */
|
|
|
|
/* Deal with ioctls passed from the upper-half driver */
|
|
|
|
switch (cmd)
|
|
{
|
|
/* Report our preferred buffer size and quantity */
|
|
|
|
#ifdef CONFIG_AUDIO_DRIVER_SPECIFIC_BUFFERS
|
|
case AUDIOIOC_GETBUFFERINFO:
|
|
{
|
|
audinfo("AUDIOIOC_GETBUFFERINFO:\n");
|
|
bufinfo = (FAR struct ap_buffer_info_s *) arg;
|
|
bufinfo->buffer_size = CONFIG_ES8311_BUFFER_SIZE;
|
|
bufinfo->nbuffers = CONFIG_ES8311_NUM_BUFFERS;
|
|
}
|
|
break;
|
|
#endif /* CONFIG_AUDIO_DRIVER_SPECIFIC_BUFFERS */
|
|
|
|
default:
|
|
ret = -ENOTTY;
|
|
audinfo("Unhandled ioctl: %d\n", cmd);
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_reserve
|
|
*
|
|
* Description: Reserves a session (the only one we have).
|
|
*
|
|
* Input Parameters:
|
|
* dev - A reference to the lower half state structure.
|
|
* session - The current audio session.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_AUDIO_MULTI_SESSION
|
|
static int es8311_reserve(FAR struct audio_lowerhalf_s *dev,
|
|
FAR void **session)
|
|
#else /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
static int es8311_reserve(FAR struct audio_lowerhalf_s *dev)
|
|
#endif /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
{
|
|
FAR struct es8311_dev_s *priv = (FAR struct es8311_dev_s *) dev;
|
|
int ret = OK;
|
|
|
|
audinfo("ES8311 Reserve\n");
|
|
|
|
/* Borrow the APBQ semaphore for thread sync */
|
|
|
|
ret = nxmutex_lock(&priv->pendlock);
|
|
if (ret < 0)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
if (priv->reserved)
|
|
{
|
|
ret = -EBUSY;
|
|
}
|
|
else
|
|
{
|
|
/* Initialize the session context */
|
|
|
|
#ifdef CONFIG_AUDIO_MULTI_SESSION
|
|
*session = NULL;
|
|
#endif /* CONFIG_AUDIO_MULTI_SESSION */
|
|
priv->inflight = 0;
|
|
priv->running = false;
|
|
priv->paused = false;
|
|
#ifndef CONFIG_AUDIO_EXCLUDE_STOP
|
|
priv->terminating = false;
|
|
#endif /* CONFIG_AUDIO_EXCLUDE_STOP */
|
|
priv->reserved = true;
|
|
}
|
|
|
|
nxmutex_unlock(&priv->pendlock);
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_release
|
|
*
|
|
* Description: Releases the session (the only one we have).
|
|
*
|
|
* Input Parameters:
|
|
* dev - A reference to the lower half state structure.
|
|
* session - The current audio session.
|
|
*
|
|
* Returned Value:
|
|
* Returns OK or a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_AUDIO_MULTI_SESSION
|
|
static int es8311_release(FAR struct audio_lowerhalf_s *dev,
|
|
FAR void *session)
|
|
#else /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
static int es8311_release(FAR struct audio_lowerhalf_s *dev)
|
|
#endif /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
{
|
|
FAR struct es8311_dev_s *priv = (FAR struct es8311_dev_s *)dev;
|
|
FAR void *value;
|
|
int ret;
|
|
|
|
audinfo("ES8311 Release\n");
|
|
|
|
/* Join any old worker thread we had created to prevent a memory leak */
|
|
|
|
if (priv->threadid != 0)
|
|
{
|
|
pthread_join(priv->threadid, &value);
|
|
priv->threadid = 0;
|
|
}
|
|
|
|
/* Borrow the APBQ semaphore for thread sync */
|
|
|
|
ret = nxmutex_lock(&priv->pendlock);
|
|
|
|
/* Really we should free any queued buffers here */
|
|
|
|
priv->reserved = false;
|
|
nxmutex_unlock(&priv->pendlock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_audio_output
|
|
*
|
|
* Description:
|
|
* Initialize and configure the ES8311 device as an audio output device.
|
|
* This will be mostly used when adding input support.
|
|
*
|
|
* Input Parameters:
|
|
* priv - A reference to the driver state structure.
|
|
*
|
|
* Returned Value:
|
|
* None. No failures are detected.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void es8311_audio_output(FAR struct es8311_dev_s *priv)
|
|
{
|
|
audinfo("ES8311 set to output mode\n");
|
|
|
|
priv->audio_mode = ES_MODULE_DAC;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_audio_input
|
|
*
|
|
* Description:
|
|
* Initialize and configure the ES8311 device as an audio input device.
|
|
* This will be mostly used when adding input support.
|
|
*
|
|
* Input Parameters:
|
|
* priv - A reference to the driver state structure.
|
|
*
|
|
* Returned Value:
|
|
* None. No failures are detected.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void es8311_audio_input(FAR struct es8311_dev_s *priv)
|
|
{
|
|
audinfo("ES8311 set to input mode\n");
|
|
|
|
priv->audio_mode = ES_MODULE_ADC;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_workerthread
|
|
*
|
|
* This is the thread that feeds data to the chip and keeps the audio
|
|
* stream going.
|
|
*
|
|
* Input Parameters:
|
|
* pvarg - The thread arguments.
|
|
*
|
|
* Returned Value:
|
|
* Returns NULL.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void *es8311_workerthread(pthread_addr_t pvarg)
|
|
{
|
|
FAR struct es8311_dev_s *priv = (struct es8311_dev_s *) pvarg;
|
|
struct audio_msg_s msg;
|
|
FAR struct ap_buffer_s *apb;
|
|
int msglen;
|
|
unsigned int prio;
|
|
|
|
audinfo("ES8311 worker thread starting\n");
|
|
|
|
#ifndef CONFIG_AUDIO_EXCLUDE_STOP
|
|
priv->terminating = false;
|
|
#endif /* CONFIG_AUDIO_EXCLUDE_STOP */
|
|
|
|
priv->running = true;
|
|
|
|
/* Loop as long as we are supposed to be running and as long as we have
|
|
* buffers in-flight.
|
|
*/
|
|
|
|
while (priv->running || priv->inflight > 0)
|
|
{
|
|
/* Check if we have been asked to terminate. We have to check if we
|
|
* still have buffers in-flight. If we do, then we can't stop until
|
|
* birds come back to roost.
|
|
*/
|
|
|
|
if (priv->terminating && priv->inflight <= 0)
|
|
{
|
|
/* We are IDLE. Break out of the loop and exit. */
|
|
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
/* Check if we can process more audio buffers */
|
|
|
|
es8311_processbegin(priv);
|
|
}
|
|
|
|
/* Wait for messages from our message queue */
|
|
|
|
msglen = file_mq_receive(&priv->mq, (FAR char *)&msg,
|
|
sizeof(msg), &prio);
|
|
|
|
/* Handle the case when we return with no message */
|
|
|
|
if (msglen < sizeof(struct audio_msg_s))
|
|
{
|
|
auderr("Message too small: %d\n", msglen);
|
|
continue;
|
|
}
|
|
|
|
/* Process the message */
|
|
|
|
switch (msg.msg_id)
|
|
{
|
|
/* The ISR has requested more data. We will catch this case at
|
|
* the top of the loop.
|
|
*/
|
|
|
|
case AUDIO_MSG_DATA_REQUEST:
|
|
audinfo("AUDIO_MSG_DATA_REQUEST\n");
|
|
break;
|
|
|
|
/* Stop the playback */
|
|
|
|
#ifndef CONFIG_AUDIO_EXCLUDE_STOP
|
|
case AUDIO_MSG_STOP:
|
|
|
|
/* Indicate that we are terminating */
|
|
|
|
audinfo("AUDIO_MSG_STOP: Terminating\n");
|
|
priv->terminating = true;
|
|
break;
|
|
#endif /* CONFIG_AUDIO_EXCLUDE_STOP */
|
|
|
|
/* We have a new buffer to process. We will catch this case at
|
|
* the top of the loop.
|
|
*/
|
|
|
|
case AUDIO_MSG_ENQUEUE:
|
|
audinfo("AUDIO_MSG_ENQUEUE\n");
|
|
break;
|
|
|
|
/* We will wake up from the I2S callback with this message */
|
|
|
|
case AUDIO_MSG_COMPLETE:
|
|
audinfo("AUDIO_MSG_COMPLETE\n");
|
|
es8311_returnbuffers(priv);
|
|
break;
|
|
|
|
default:
|
|
auderr("Ignoring message ID %d\n", msg.msg_id);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Reset the ES8311 hardware */
|
|
|
|
es8311_reset(priv);
|
|
|
|
/* Return any pending buffers in our pending queue */
|
|
|
|
nxmutex_lock(&priv->pendlock);
|
|
while ((apb = (FAR struct ap_buffer_s *)dq_remfirst(&priv->pendq)) != NULL)
|
|
{
|
|
/* Release our reference to the buffer */
|
|
|
|
apb_free(apb);
|
|
|
|
/* Send the buffer back up to the previous level. */
|
|
|
|
#ifdef CONFIG_AUDIO_MULTI_SESSION
|
|
priv->dev.upper(priv->dev.priv, AUDIO_CALLBACK_DEQUEUE, apb, OK, NULL);
|
|
#else /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
priv->dev.upper(priv->dev.priv, AUDIO_CALLBACK_DEQUEUE, apb, OK);
|
|
#endif /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
}
|
|
|
|
nxmutex_unlock(&priv->pendlock);
|
|
|
|
/* Return any pending buffers in our done queue */
|
|
|
|
es8311_returnbuffers(priv);
|
|
|
|
/* Close the message queue */
|
|
|
|
file_mq_close(&priv->mq);
|
|
file_mq_unlink(priv->mqname);
|
|
|
|
/* Send an AUDIO_MSG_COMPLETE message to the client */
|
|
|
|
#ifdef CONFIG_AUDIO_MULTI_SESSION
|
|
priv->dev.upper(priv->dev.priv, AUDIO_CALLBACK_COMPLETE, NULL, OK, NULL);
|
|
#else /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
priv->dev.upper(priv->dev.priv, AUDIO_CALLBACK_COMPLETE, NULL, OK);
|
|
#endif /* !CONFIG_AUDIO_MULTI_SESSION */
|
|
|
|
audinfo("ES8311 worker thread finishing\n");
|
|
return NULL;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_reset
|
|
*
|
|
* Description:
|
|
* Reset and re-initialize the ES8311.
|
|
*
|
|
* Input Parameters:
|
|
* priv - A reference to the driver state structure.
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
static void es8311_reset(FAR struct es8311_dev_s *priv)
|
|
{
|
|
uint8_t regconfig;
|
|
|
|
/* Put audio back to its initial configuration */
|
|
|
|
audinfo("ES8311 reset triggered.\n");
|
|
priv->samprate = ES8311_DEFAULT_SAMPRATE;
|
|
priv->bpsamp = ES8311_DEFAULT_BPSAMP;
|
|
|
|
/* Software reset. This puts all ES8311 registers back in their
|
|
* default state.
|
|
*/
|
|
|
|
es8311_writereg(priv, ES8311_CLK_MANAGER_REG01, 0x30);
|
|
es8311_writereg(priv, ES8311_CLK_MANAGER_REG02, 0x00);
|
|
es8311_writereg(priv, ES8311_CLK_MANAGER_REG03, 0x10);
|
|
es8311_writereg(priv, ES8311_ADC_REG16, 0x24);
|
|
es8311_writereg(priv, ES8311_CLK_MANAGER_REG04, 0x10);
|
|
es8311_writereg(priv, ES8311_CLK_MANAGER_REG05, 0x00);
|
|
es8311_writereg(priv, ES8311_SYSTEM_REG0B, 0x00);
|
|
es8311_writereg(priv, ES8311_SYSTEM_REG0C, 0x00);
|
|
es8311_writereg(priv, ES8311_SYSTEM_REG10, 0x1f);
|
|
es8311_writereg(priv, ES8311_SYSTEM_REG11, 0x7f);
|
|
es8311_writereg(priv, ES8311_RESET_REG00, 0x80);
|
|
|
|
audinfo("ES8311 in Slave mode.\n");
|
|
regconfig = es8311_readreg(priv, ES8311_RESET_REG00);
|
|
regconfig &= 0xbf;
|
|
es8311_writereg(priv, ES8311_RESET_REG00, regconfig);
|
|
es8311_writereg(priv, ES8311_CLK_MANAGER_REG01, 0x3f);
|
|
|
|
if (es8311_get_mclk_src() == ES8311_MCLK_FROM_MCLK_PIN)
|
|
{
|
|
regconfig = es8311_readreg(priv, ES8311_CLK_MANAGER_REG01);
|
|
regconfig &= 0x7f;
|
|
es8311_writereg(priv, ES8311_CLK_MANAGER_REG01, regconfig);
|
|
}
|
|
else
|
|
{
|
|
regconfig = es8311_readreg(priv, ES8311_CLK_MANAGER_REG01);
|
|
regconfig |= 0x80;
|
|
es8311_writereg(priv, ES8311_CLK_MANAGER_REG01, regconfig);
|
|
}
|
|
|
|
es8311_setsamplerate(priv);
|
|
es8311_setbitspersample(priv);
|
|
|
|
regconfig = es8311_readreg(priv, ES8311_CLK_MANAGER_REG01);
|
|
regconfig &= ~(0x40);
|
|
es8311_writereg(priv, ES8311_CLK_MANAGER_REG01, regconfig);
|
|
|
|
regconfig = es8311_readreg(priv, ES8311_CLK_MANAGER_REG06);
|
|
regconfig &= ~(0x20);
|
|
es8311_writereg(priv, ES8311_CLK_MANAGER_REG06, regconfig);
|
|
es8311_writereg(priv, ES8311_SYSTEM_REG13, 0x10);
|
|
es8311_writereg(priv, ES8311_ADC_REG1B, 0x0a);
|
|
es8311_writereg(priv, ES8311_ADC_REG1C, 0x6a);
|
|
es8311_setvolume(priv, ES_MODULE_ADC, CONFIG_ES8311_INPUT_INITVOLUME);
|
|
es8311_setvolume(priv, ES_MODULE_DAC, CONFIG_ES8311_OUTPUT_INITVOLUME);
|
|
|
|
es8311_dump_registers(&priv->dev, "After reset");
|
|
audinfo("ES8311 reset complete.\n");
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: es8311_initialize
|
|
*
|
|
* Description:
|
|
* Initialize the ES8311 device.
|
|
*
|
|
* Input Parameters:
|
|
* i2c - An I2C driver instance.
|
|
* i2s - An I2S driver instance.
|
|
* lower - Persistent board configuration data.
|
|
*
|
|
* Returned Value:
|
|
* A new lower half audio interface for the ES8311 device is returned on
|
|
* success; NULL is returned on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
FAR struct audio_lowerhalf_s *
|
|
es8311_initialize(FAR struct i2c_master_s *i2c,
|
|
FAR struct i2s_dev_s *i2s,
|
|
FAR const struct es8311_lower_s *lower)
|
|
{
|
|
FAR struct es8311_dev_s *priv;
|
|
|
|
audinfo("Initializing ES8311\n");
|
|
|
|
/* Sanity check */
|
|
|
|
DEBUGASSERT(i2c && i2s && lower);
|
|
|
|
/* Allocate a ES8311 device structure */
|
|
|
|
priv = kmm_zalloc(sizeof(struct es8311_dev_s));
|
|
|
|
if (priv)
|
|
{
|
|
priv->dev.ops = &g_audioops;
|
|
priv->lower = lower;
|
|
priv->i2c = i2c;
|
|
priv->i2s = i2s;
|
|
|
|
nxmutex_init(&priv->pendlock);
|
|
dq_init(&priv->pendq);
|
|
dq_init(&priv->doneq);
|
|
|
|
audinfo("ES8311: address=%02x frequency=%" PRId32 "\n",
|
|
lower->address, lower->frequency);
|
|
|
|
/* Reset and reconfigure the ES8311 hardware */
|
|
|
|
es8311_dump_registers(&priv->dev, "Before reset");
|
|
|
|
es8311_audio_output(priv);
|
|
es8311_reset(priv);
|
|
audinfo("ES8311 initialized.\n");
|
|
return &priv->dev;
|
|
}
|
|
|
|
return NULL;
|
|
}
|