mirror of
https://github.com/apache/nuttx.git
synced 2026-05-12 01:42:49 +08:00
Piyush Patle
0dccc8ba21
debug.h is a NuttX-specific, non-POSIX header. Placing it in the top-level include/ directory creates naming conflicts with external projects that define their own debug.h. This commit moves the canonical header to include/nuttx/debug.h, following the NuttX convention for non-POSIX/non-standard headers, and updates all in-tree references. A backward-compatibility shim is left at include/debug.h that emits a deprecation #warning and re-includes <nuttx/debug.h>, allowing out-of-tree code to continue building while migrating. Signed-off-by: Piyush Patle <piyushpatle228@gmail.com>
144 lines
4.2 KiB
C
144 lines
4.2 KiB
C
/****************************************************************************
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* libs/libc/audio/lib_buffer.c
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*
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* SPDX-License-Identifier: Apache-2.0
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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/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <errno.h>
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#include <nuttx/debug.h>
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#include <nuttx/audio/audio.h>
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#include <nuttx/usb/audio.h>
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#include "libc.h"
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#if defined(CONFIG_AUDIO)
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: apb_alloc
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*
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* Allocate an Audio Pipeline Buffer for use in the Audio sub-system. This
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* will perform the actual allocate based on buffer data format, number of
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* channels, etc. and prepare the buffer for consumption.
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*
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****************************************************************************/
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int apb_alloc(FAR struct audio_buf_desc_s *bufdesc)
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{
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uint32_t bufsize;
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int ret;
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struct ap_buffer_s *apb;
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DEBUGASSERT(bufdesc->u.pbuffer != NULL);
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/* Perform a user mode allocation */
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bufsize = sizeof(struct ap_buffer_s) + bufdesc->numbytes;
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apb = lib_umalloc(bufsize);
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*bufdesc->u.pbuffer = apb;
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/* Test if the allocation was successful or not */
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if (*bufdesc->u.pbuffer == NULL)
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{
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ret = -ENOMEM;
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}
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else
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{
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/* Populate the buffer contents */
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memset(apb, 0, bufsize);
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apb->i.channels = 1;
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apb->crefs = 1;
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apb->nmaxbytes = bufdesc->numbytes;
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apb->nbytes = 0;
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apb->flags = 0;
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apb->samp = (FAR uint8_t *)(apb + 1);
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#ifdef CONFIG_AUDIO_MULTI_SESSION
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apb->session = bufdesc->session;
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#endif
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nxmutex_init(&apb->lock);
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ret = sizeof(struct audio_buf_desc_s);
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}
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return ret;
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}
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/****************************************************************************
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* Name: apb_free
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*
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* Free's a previously allocated or referenced Audio Pipeline Buffer
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*
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****************************************************************************/
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void apb_free(FAR struct ap_buffer_s *apb)
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{
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int refcount;
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/* Perform a reference count decrement and possibly release the memory */
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nxmutex_lock(&apb->lock);
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refcount = apb->crefs--;
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nxmutex_unlock(&apb->lock);
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if (refcount <= 1)
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{
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audinfo("Freeing %p\n", apb);
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nxmutex_destroy(&apb->lock);
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lib_ufree(apb);
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}
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}
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/****************************************************************************
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* Name: apb_reference
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*
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* Claim a reference to an Audio Pipeline Buffer. Each call to apb_reference
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* will increment the reference count and must have a matching apb_free
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* call. When the refcount decrements to zero, the buffer will be freed.
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*
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****************************************************************************/
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void apb_reference(FAR struct ap_buffer_s *apb)
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{
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/* Do we need any thread protection here? Almost certainly... */
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nxmutex_lock(&apb->lock);
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apb->crefs++;
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nxmutex_unlock(&apb->lock);
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}
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#endif /* CONFIG_AUDIO */
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