601 lines
16 KiB
C
601 lines
16 KiB
C
/****************************************************************************
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* apps/system/nxlooper/nxlooper_main.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 <nuttx/audio/audio.h>
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include <assert.h>
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#include "system/readline.h"
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#include "system/nxlooper.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define NXLOOPER_VER "1.00"
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#ifdef CONFIG_NXLOOPER_INCLUDE_HELP
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# define NXLOOPER_HELP_TEXT(x) x
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#else
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# define NXLOOPER_HELP_TEXT(x)
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#endif
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/****************************************************************************
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* Private Type Declarations
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****************************************************************************/
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typedef int (*nxlooper_func)(FAR struct nxlooper_s *plooper, char *pargs);
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struct mp_cmd_s
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{
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FAR const char *cmd; /* The command text */
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FAR const char *arghelp; /* Text describing the args */
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nxlooper_func pfunc; /* Pointer to command handler */
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FAR const char *help; /* The help text */
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};
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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static int nxlooper_cmd_quit(FAR struct nxlooper_s *plooper, char *parg);
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static int nxlooper_cmd_loopback(FAR struct nxlooper_s *plooper, char *parg);
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#ifdef CONFIG_NXLOOPER_INCLUDE_SYSTEM_RESET
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static int nxlooper_cmd_reset(FAR struct nxlooper_s *plooper, char *parg);
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#endif
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#ifdef CONFIG_NXLOOPER_INCLUDE_PREFERRED_DEVICE
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static int nxlooper_cmd_device(FAR struct nxlooper_s *plooper, char *parg);
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#endif
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#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
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static int nxlooper_cmd_pause(FAR struct nxlooper_s *plooper, char *parg);
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static int nxlooper_cmd_resume(FAR struct nxlooper_s *plooper, char *parg);
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#endif
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#ifndef CONFIG_AUDIO_EXCLUDE_STOP
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static int nxlooper_cmd_stop(FAR struct nxlooper_s *plooper, char *parg);
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#endif
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#ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
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static int nxlooper_cmd_volume(FAR struct nxlooper_s *plooper, char *parg);
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#endif
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#ifdef CONFIG_NXLOOPER_INCLUDE_HELP
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static int nxlooper_cmd_help(FAR struct nxlooper_s *plooper, char *parg);
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static const struct mp_cmd_s g_nxlooper_cmds[] =
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{
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#ifdef CONFIG_NXLOOPER_INCLUDE_PREFERRED_DEVICE
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{
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"device",
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"devfile",
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nxlooper_cmd_device,
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NXLOOPER_HELP_TEXT("Specify a preferred play/record device")
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},
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#endif
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#ifdef CONFIG_NXLOOPER_INCLUDE_HELP
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{
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"h",
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"",
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nxlooper_cmd_help,
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NXLOOPER_HELP_TEXT("Display help for commands")
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},
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{
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"help",
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"",
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nxlooper_cmd_help,
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NXLOOPER_HELP_TEXT("Display help for commands")
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},
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#endif
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{
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"loopback",
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"channels bpsamp samprate format chmap",
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nxlooper_cmd_loopback,
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NXLOOPER_HELP_TEXT("Audio loopback test")
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},
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#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
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{
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"pause",
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"",
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nxlooper_cmd_pause,
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NXLOOPER_HELP_TEXT("Pause loopback")
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},
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#endif
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#ifdef CONFIG_NXLOOPER_INCLUDE_SYSTEM_RESET
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{
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"reset",
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"",
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nxlooper_cmd_reset,
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NXLOOPER_HELP_TEXT("Perform a HW reset")
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},
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#endif
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#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
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{
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"resume",
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"",
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nxlooper_cmd_resume,
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NXLOOPER_HELP_TEXT("Resume loopback")
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},
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#endif
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#ifndef CONFIG_AUDIO_EXCLUDE_STOP
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{
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"stop",
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"",
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nxlooper_cmd_stop,
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NXLOOPER_HELP_TEXT("Stop loopback")
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},
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#endif
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{
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"q",
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"",
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nxlooper_cmd_quit,
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NXLOOPER_HELP_TEXT("Exit NxLooper")
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},
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{
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"quit",
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"",
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nxlooper_cmd_quit,
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NXLOOPER_HELP_TEXT("Exit NxLooper")
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},
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#ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
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{
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"volume",
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"d%",
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nxlooper_cmd_volume,
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NXLOOPER_HELP_TEXT("Set volume to level specified")
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}
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#endif
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};
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static const int g_nxlooper_cmd_count = sizeof(g_nxlooper_cmds) /
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sizeof(struct mp_cmd_s);
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/****************************************************************************
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* Name: nxlooper_cmd_loopback
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*
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* nxlooper_cmd_loop() play and record the raw data file using the nxlooper
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* context.
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*
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****************************************************************************/
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static int nxlooper_cmd_loopback(FAR struct nxlooper_s *plooper, char *parg)
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{
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int ret;
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int format = AUDIO_FMT_UNDEF;
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int channels = 0;
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int bpsamp = 0;
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int samprate = 0;
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int chmap = 0;
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sscanf(parg, "%d %d %d %d %d", &channels, &bpsamp,
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&samprate, &chmap, &format);
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if (format == AUDIO_FMT_UNDEF)
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{
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format = AUDIO_FMT_PCM;
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}
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/* Try to loopback raw data with settings specified */
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ret = nxlooper_loopback(plooper, format, channels, bpsamp,
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samprate, chmap);
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/* nxlooper_loopraw returned values:
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*
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* OK Loopback is being run
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* -EBUSY The media device is busy
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* -ENOSYS The audio format is not unsupported
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* -ENODEV No audio device suitable to play and record the media type
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*/
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switch (-ret)
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{
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case OK:
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break;
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case ENODEV:
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printf("No suitable Audio Device found\n");
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break;
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case EBUSY:
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printf("Audio device busy\n");
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break;
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case ENOSYS:
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printf("Unknown audio format\n");
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break;
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default:
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printf("Error loopback test: %d\n", -ret);
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break;
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}
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return ret;
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}
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/****************************************************************************
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* Name: nxlooper_cmd_volume
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*
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* nxlooper_cmd_volume() sets the volume level.
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*
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****************************************************************************/
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#ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
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static int nxlooper_cmd_volume(FAR struct nxlooper_s *plooper, char *parg)
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{
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uint16_t percent;
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/* If no arg given, then print current volume */
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if (parg == NULL || *parg == '\0')
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{
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printf("volume: %d\n", plooper->volume / 10);
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}
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else
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{
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/* Get the percentage value from the argument */
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percent = (uint16_t)(strtof(parg, NULL) * 10.0f);
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return nxlooper_setvolume(plooper, percent);
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}
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return OK;
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}
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#endif
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/****************************************************************************
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* Name: nxlooper_cmd_reset
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*
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* nxlooper_cmd_reset() performs a HW reset of all the audio devices.
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*
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****************************************************************************/
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#ifdef CONFIG_NXLOOPER_INCLUDE_SYSTEM_RESET
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static int nxlooper_cmd_reset(FAR struct nxlooper_s *plooper, char *parg)
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{
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return nxlooper_systemreset(plooper);
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}
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#endif
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/****************************************************************************
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* Name: nxlooper_cmd_stop
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*
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* nxlooper_cmd_stop() stops loopback
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* context.
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*
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****************************************************************************/
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#ifndef CONFIG_AUDIO_EXCLUDE_STOP
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static int nxlooper_cmd_stop(FAR struct nxlooper_s *plooper, char *parg)
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{
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/* Stop the loopback */
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return nxlooper_stop(plooper);
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}
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#endif
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/****************************************************************************
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* Name: nxlooper_cmd_pause
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*
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* nxlooper_cmd_pause() pauses loopback
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* context.
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*
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****************************************************************************/
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#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
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static int nxlooper_cmd_pause(FAR struct nxlooper_s *plooper, char *parg)
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{
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/* Pause the loopback */
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return nxlooper_pause(plooper);
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}
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#endif
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/****************************************************************************
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* Name: nxlooper_cmd_resume
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*
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* nxlooper_cmd_resume() resumes loopback
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* context.
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*
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****************************************************************************/
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#ifndef CONFIG_AUDIO_EXCLUDE_PAUSE_RESUME
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static int nxlooper_cmd_resume(FAR struct nxlooper_s *plooper, char *parg)
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{
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/* Resume the loopback */
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return nxlooper_resume(plooper);
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}
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#endif
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/****************************************************************************
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* Name: nxlooper_cmd_device
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*
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* nxlooper_cmd_device() sets the preferred audio device for loopback
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*
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****************************************************************************/
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#ifdef CONFIG_NXLOOPER_INCLUDE_PREFERRED_DEVICE
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static int nxlooper_cmd_device(FAR struct nxlooper_s *plooper, char *parg)
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{
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int ret;
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char path[PATH_MAX];
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/* First try to open the file directly */
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ret = nxlooper_setdevice(plooper, parg);
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if (ret == -ENOENT)
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{
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/* Append the /dev/audio path and try again */
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#ifdef CONFIG_AUDIO_CUSTOM_DEV_PATH
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#ifdef CONFIG_AUDIO_DEV_ROOT
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snprintf(path, sizeof(path), "/dev/%s", parg);
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#else
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snprintf(path, sizeof(path), CONFIG_AUDIO_DEV_PATH "/%s", parg);
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#endif
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#else
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snprintf(path, sizeof(path), "/dev/audio/%s", parg);
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#endif
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ret = nxlooper_setdevice(plooper, path);
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}
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/* Test if the device file exists */
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if (ret == -ENOENT)
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{
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/* Device doesn't exit. Report error */
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printf("Device %s not found\n", parg);
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return ret;
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}
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/* Test if is is an audio device */
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if (ret == -ENODEV)
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{
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printf("Device %s is not an audio device\n", parg);
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return ret;
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}
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if (ret < 0)
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{
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return ret;
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}
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/* Device set successfully */
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return OK;
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}
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#endif /* CONFIG_NXLOOPER_INCLUDE_PREFERRED_DEVICE */
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/****************************************************************************
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* Name: nxlooper_cmd_quit
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*
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* nxlooper_cmd_quit() terminates the application
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****************************************************************************/
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static int nxlooper_cmd_quit(FAR struct nxlooper_s *plooper, char *parg)
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{
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/* Stop the loopback if any */
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#ifndef CONFIG_AUDIO_EXCLUDE_STOP
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return nxlooper_stop(plooper);
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#endif
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return OK;
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}
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/****************************************************************************
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* Name: nxlooper_cmd_help
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*
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* nxlooper_cmd_help() displays the application's help information on
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* supported commands and command syntax.
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****************************************************************************/
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#ifdef CONFIG_NXLOOPER_INCLUDE_HELP
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static int nxlooper_cmd_help(FAR struct nxlooper_s *plooper, char *parg)
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{
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int len;
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int maxlen = 0;
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int x;
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int c;
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/* Calculate length of longest cmd + arghelp */
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for (x = 0; x < g_nxlooper_cmd_count; x++)
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{
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len = strlen(g_nxlooper_cmds[x].cmd) +
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strlen(g_nxlooper_cmds[x].arghelp);
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if (len > maxlen)
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{
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maxlen = len;
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}
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}
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printf("NxLooper commands\n================\n");
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for (x = 0; x < g_nxlooper_cmd_count; x++)
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{
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/* Print the command and it's arguments */
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printf(" %s %s", g_nxlooper_cmds[x].cmd, g_nxlooper_cmds[x].arghelp);
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/* Calculate number of spaces to print before the help text */
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len = maxlen - (strlen(g_nxlooper_cmds[x].cmd) +
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strlen(g_nxlooper_cmds[x].arghelp));
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for (c = 0; c < len; c++)
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{
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printf(" ");
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}
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printf(" : %s\n", g_nxlooper_cmds[x].help);
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}
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return OK;
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxlooper
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*
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* nxlooper() reads in commands from the console using the readline
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* system add-in and impalements a command-line based media loop
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* tester that uses the NuttX audio system to record and then play
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* raw data from the lower audio driver. Commands are provided for
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* setting volume, base and other audio features, as well as for
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* pausing and stopping the test.
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*
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* Input Parameters:
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* buf - The user allocated buffer to be filled.
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* buflen - the size of the buffer.
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* instream - The stream to read characters from
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* outstream - The stream to each characters to.
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*
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* Returned values:
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* On success, the (positive) number of bytes transferred is returned.
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* EOF is returned to indicate either an end of file condition or a
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* failure.
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*
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****************************************************************************/
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int main(int argc, FAR char *argv[])
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{
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char buffer[CONFIG_NSH_LINELEN];
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int len;
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int x;
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int running;
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FAR char *cmd;
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FAR char *arg;
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FAR struct nxlooper_s *plooper;
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printf("NxLooper version " NXLOOPER_VER "\n");
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printf("h for commands, q to exit\n");
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printf("\n");
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/* Initialize our NxLooper context */
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plooper = nxlooper_create();
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if (plooper == NULL)
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{
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printf("Error: Out of RAM\n");
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return -ENOMEM;
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}
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/* Loop until the user exits */
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running = TRUE;
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while (running)
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{
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/* Print a prompt */
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printf("nxlooper> ");
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fflush(stdout);
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/* Read a line from the terminal */
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len = readline_stream(buffer, sizeof(buffer),
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stdin, stdout);
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if (len > 0)
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{
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buffer[len] = '\0';
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if (strncmp(buffer, "!", 1) != 0)
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{
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/* nxlooper command */
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if (buffer[len - 1] == '\n')
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{
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buffer[len - 1] = '\0';
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}
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/* Parse the command from the argument */
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cmd = strtok_r(buffer, " \n", &arg);
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if (cmd == NULL)
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{
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continue;
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}
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/* Find the command in our cmd array */
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for (x = 0; x < g_nxlooper_cmd_count; x++)
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{
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if (strcmp(cmd, g_nxlooper_cmds[x].cmd) == 0)
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{
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/* Command found. Call it's handler if not NULL */
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if (g_nxlooper_cmds[x].pfunc != NULL)
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{
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g_nxlooper_cmds[x].pfunc(plooper, arg);
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}
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/* Test if it is a quit command */
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if (g_nxlooper_cmds[x].pfunc == nxlooper_cmd_quit)
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{
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running = FALSE;
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}
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#ifdef CONFIG_SYSTEM_SYSTEM
|
|
/* Transfer nuttx shell */
|
|
|
|
system(buffer + 1);
|
|
#else
|
|
printf("%s: unknown nxlooper command\n", buffer);
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Release the NxLooper context */
|
|
|
|
nxlooper_release(plooper);
|
|
|
|
return OK;
|
|
}
|