diff options
Diffstat (limited to 'sound/soc/omap/sdma-pcm.c')
| -rw-r--r-- | sound/soc/omap/sdma-pcm.c | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/sound/soc/omap/sdma-pcm.c b/sound/soc/omap/sdma-pcm.c deleted file mode 100644 index 21a9c2499d48..000000000000 --- a/sound/soc/omap/sdma-pcm.c +++ /dev/null @@ -1,74 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com - * Author: Peter Ujfalusi <peter.ujfalusi@ti.com> - */ - -#include <linux/device.h> -#include <linux/module.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/soc.h> -#include <sound/dmaengine_pcm.h> -#include <linux/omap-dmaengine.h> - -#include "sdma-pcm.h" - -static const struct snd_pcm_hardware sdma_pcm_hardware = { - .info = SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME | - SNDRV_PCM_INFO_NO_PERIOD_WAKEUP | - SNDRV_PCM_INFO_INTERLEAVED, - .period_bytes_min = 32, - .period_bytes_max = 64 * 1024, - .buffer_bytes_max = 128 * 1024, - .periods_min = 2, - .periods_max = 255, -}; - -static const struct snd_dmaengine_pcm_config sdma_dmaengine_pcm_config = { - .pcm_hardware = &sdma_pcm_hardware, - .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, - .compat_filter_fn = omap_dma_filter_fn, - .prealloc_buffer_size = 128 * 1024, -}; - -int sdma_pcm_platform_register(struct device *dev, - char *txdmachan, char *rxdmachan) -{ - struct snd_dmaengine_pcm_config *config; - unsigned int flags = SND_DMAENGINE_PCM_FLAG_COMPAT; - - /* Standard names for the directions: 'tx' and 'rx' */ - if (!txdmachan && !rxdmachan) - return devm_snd_dmaengine_pcm_register(dev, - &sdma_dmaengine_pcm_config, - flags); - - config = devm_kzalloc(dev, sizeof(*config), GFP_KERNEL); - if (!config) - return -ENOMEM; - - *config = sdma_dmaengine_pcm_config; - - if (!txdmachan || !rxdmachan) { - /* One direction only PCM */ - flags |= SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX; - if (!txdmachan) { - txdmachan = rxdmachan; - rxdmachan = NULL; - } - } - - config->chan_names[0] = txdmachan; - config->chan_names[1] = rxdmachan; - - return devm_snd_dmaengine_pcm_register(dev, config, flags); -} -EXPORT_SYMBOL_GPL(sdma_pcm_platform_register); - -MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>"); -MODULE_DESCRIPTION("sDMA PCM ASoC platform driver"); -MODULE_LICENSE("GPL v2"); |
