/* * Copyright (c) 2019-2025 Allwinner Technology Co., Ltd. ALL rights reserved. * * Allwinner is a trademark of Allwinner Technology Co.,Ltd., registered in * the the people's Republic of China and other countries. * All Allwinner Technology Co.,Ltd. trademarks are used with permission. * * DISCLAIMER * THIRD PARTY LICENCES MAY BE REQUIRED TO IMPLEMENT THE SOLUTION/PRODUCT. * IF YOU NEED TO INTEGRATE THIRD PARTY’S TECHNOLOGY (SONY, DTS, DOLBY, AVS OR MPEGLA, ETC.) * IN ALLWINNERS’SDK OR PRODUCTS, YOU SHALL BE SOLELY RESPONSIBLE TO OBTAIN * ALL APPROPRIATELY REQUIRED THIRD PARTY LICENCES. * ALLWINNER SHALL HAVE NO WARRANTY, INDEMNITY OR OTHER OBLIGATIONS WITH RESPECT TO MATTERS * COVERED UNDER ANY REQUIRED THIRD PARTY LICENSE. * YOU ARE SOLELY RESPONSIBLE FOR YOUR USAGE OF THIRD PARTY’S TECHNOLOGY. * * * THIS SOFTWARE IS PROVIDED BY ALLWINNER"AS IS" AND TO THE MAXIMUM EXTENT * PERMITTED BY LAW, ALLWINNER EXPRESSLY DISCLAIMS ALL WARRANTIES OF ANY KIND, * WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING WITHOUT LIMITATION REGARDING * THE TITLE, NON-INFRINGEMENT, ACCURACY, CONDITION, COMPLETENESS, PERFORMANCE * OR MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * IN NO EVENT SHALL ALLWINNER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS, OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef __SOUND_DMA_H #define __SOUND_DMA_H #include "snd_core.h" #include int snd_dmaengine_pcm_open_request_chan(struct snd_pcm_substream *substream); snd_pcm_uframes_t snd_dmaengine_pcm_pointer(struct snd_pcm_substream *substream); int snd_dmaengine_pcm_close_release_chan(struct snd_pcm_substream *substream); int snd_dmaengine_pcm_trigger(struct snd_pcm_substream *substream, int cmd); int snd_hwparams_to_dma_slave_config(const struct snd_pcm_substream *substream, const struct snd_pcm_hw_params *params, struct dma_slave_config *slave_config); struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream); #endif /* __SOUND_DMA_H */