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816 lines
20 KiB
816 lines
20 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* sst_mfld_platform.c - Intel MID Platform driver |
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* |
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* Copyright (C) 2010-2014 Intel Corp |
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* Author: Vinod Koul <[email protected]> |
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* Author: Harsha Priya <[email protected]> |
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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* |
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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*/ |
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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|
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#include <linux/slab.h> |
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#include <linux/io.h> |
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#include <linux/module.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/soc.h> |
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#include <sound/compress_driver.h> |
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#include <asm/platform_sst_audio.h> |
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#include "sst-mfld-platform.h" |
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#include "sst-atom-controls.h" |
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struct sst_device *sst; |
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static DEFINE_MUTEX(sst_lock); |
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int sst_register_dsp(struct sst_device *dev) |
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{ |
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if (WARN_ON(!dev)) |
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return -EINVAL; |
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if (!try_module_get(dev->dev->driver->owner)) |
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return -ENODEV; |
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mutex_lock(&sst_lock); |
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if (sst) { |
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dev_err(dev->dev, "we already have a device %s\n", sst->name); |
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module_put(dev->dev->driver->owner); |
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mutex_unlock(&sst_lock); |
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return -EEXIST; |
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} |
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dev_dbg(dev->dev, "registering device %s\n", dev->name); |
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sst = dev; |
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mutex_unlock(&sst_lock); |
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(sst_register_dsp); |
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int sst_unregister_dsp(struct sst_device *dev) |
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{ |
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if (WARN_ON(!dev)) |
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return -EINVAL; |
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if (dev != sst) |
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return -EINVAL; |
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mutex_lock(&sst_lock); |
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if (!sst) { |
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mutex_unlock(&sst_lock); |
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return -EIO; |
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} |
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module_put(sst->dev->driver->owner); |
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dev_dbg(dev->dev, "unreg %s\n", sst->name); |
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sst = NULL; |
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mutex_unlock(&sst_lock); |
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return 0; |
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} |
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EXPORT_SYMBOL_GPL(sst_unregister_dsp); |
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static const struct snd_pcm_hardware sst_platform_pcm_hw = { |
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.info = (SNDRV_PCM_INFO_INTERLEAVED | |
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SNDRV_PCM_INFO_DOUBLE | |
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SNDRV_PCM_INFO_PAUSE | |
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SNDRV_PCM_INFO_RESUME | |
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SNDRV_PCM_INFO_MMAP| |
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SNDRV_PCM_INFO_MMAP_VALID | |
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SNDRV_PCM_INFO_BLOCK_TRANSFER | |
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SNDRV_PCM_INFO_SYNC_START), |
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.buffer_bytes_max = SST_MAX_BUFFER, |
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.period_bytes_min = SST_MIN_PERIOD_BYTES, |
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.period_bytes_max = SST_MAX_PERIOD_BYTES, |
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.periods_min = SST_MIN_PERIODS, |
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.periods_max = SST_MAX_PERIODS, |
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.fifo_size = SST_FIFO_SIZE, |
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}; |
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static struct sst_dev_stream_map dpcm_strm_map[] = { |
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{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}, /* Reserved, not in use */ |
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{MERR_DPCM_AUDIO, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA1_IN, SST_TASK_ID_MEDIA, 0}, |
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{MERR_DPCM_COMPR, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA0_IN, SST_TASK_ID_MEDIA, 0}, |
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{MERR_DPCM_AUDIO, 0, SNDRV_PCM_STREAM_CAPTURE, PIPE_PCM1_OUT, SST_TASK_ID_MEDIA, 0}, |
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{MERR_DPCM_DEEP_BUFFER, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA3_IN, SST_TASK_ID_MEDIA, 0}, |
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}; |
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static int sst_media_digital_mute(struct snd_soc_dai *dai, int mute, int stream) |
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{ |
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return sst_send_pipe_gains(dai, stream, mute); |
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} |
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/* helper functions */ |
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void sst_set_stream_status(struct sst_runtime_stream *stream, |
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int state) |
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{ |
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unsigned long flags; |
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spin_lock_irqsave(&stream->status_lock, flags); |
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stream->stream_status = state; |
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spin_unlock_irqrestore(&stream->status_lock, flags); |
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} |
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static inline int sst_get_stream_status(struct sst_runtime_stream *stream) |
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{ |
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int state; |
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unsigned long flags; |
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spin_lock_irqsave(&stream->status_lock, flags); |
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state = stream->stream_status; |
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spin_unlock_irqrestore(&stream->status_lock, flags); |
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return state; |
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} |
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static void sst_fill_alloc_params(struct snd_pcm_substream *substream, |
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struct snd_sst_alloc_params_ext *alloc_param) |
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{ |
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unsigned int channels; |
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snd_pcm_uframes_t period_size; |
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ssize_t periodbytes; |
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ssize_t buffer_bytes = snd_pcm_lib_buffer_bytes(substream); |
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u32 buffer_addr = virt_to_phys(substream->dma_buffer.area); |
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channels = substream->runtime->channels; |
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period_size = substream->runtime->period_size; |
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periodbytes = samples_to_bytes(substream->runtime, period_size); |
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alloc_param->ring_buf_info[0].addr = buffer_addr; |
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alloc_param->ring_buf_info[0].size = buffer_bytes; |
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alloc_param->sg_count = 1; |
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alloc_param->reserved = 0; |
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alloc_param->frag_size = periodbytes * channels; |
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} |
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static void sst_fill_pcm_params(struct snd_pcm_substream *substream, |
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struct snd_sst_stream_params *param) |
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{ |
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param->uc.pcm_params.num_chan = (u8) substream->runtime->channels; |
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param->uc.pcm_params.pcm_wd_sz = substream->runtime->sample_bits; |
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param->uc.pcm_params.sfreq = substream->runtime->rate; |
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/* PCM stream via ALSA interface */ |
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param->uc.pcm_params.use_offload_path = 0; |
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param->uc.pcm_params.reserved2 = 0; |
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memset(param->uc.pcm_params.channel_map, 0, sizeof(u8)); |
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} |
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static int sst_get_stream_mapping(int dev, int sdev, int dir, |
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struct sst_dev_stream_map *map, int size) |
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{ |
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int i; |
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if (map == NULL) |
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return -EINVAL; |
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/* index 0 is not used in stream map */ |
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for (i = 1; i < size; i++) { |
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if ((map[i].dev_num == dev) && (map[i].direction == dir)) |
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return i; |
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} |
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return 0; |
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} |
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int sst_fill_stream_params(void *substream, |
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const struct sst_data *ctx, struct snd_sst_params *str_params, bool is_compress) |
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{ |
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int map_size; |
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int index; |
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struct sst_dev_stream_map *map; |
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struct snd_pcm_substream *pstream = NULL; |
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struct snd_compr_stream *cstream = NULL; |
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map = ctx->pdata->pdev_strm_map; |
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map_size = ctx->pdata->strm_map_size; |
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if (is_compress) |
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cstream = (struct snd_compr_stream *)substream; |
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else |
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pstream = (struct snd_pcm_substream *)substream; |
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str_params->stream_type = SST_STREAM_TYPE_MUSIC; |
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/* For pcm streams */ |
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if (pstream) { |
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index = sst_get_stream_mapping(pstream->pcm->device, |
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pstream->number, pstream->stream, |
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map, map_size); |
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if (index <= 0) |
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return -EINVAL; |
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str_params->stream_id = index; |
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str_params->device_type = map[index].device_id; |
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str_params->task = map[index].task_id; |
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str_params->ops = (u8)pstream->stream; |
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} |
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if (cstream) { |
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index = sst_get_stream_mapping(cstream->device->device, |
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0, cstream->direction, |
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map, map_size); |
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if (index <= 0) |
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return -EINVAL; |
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str_params->stream_id = index; |
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str_params->device_type = map[index].device_id; |
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str_params->task = map[index].task_id; |
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str_params->ops = (u8)cstream->direction; |
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} |
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return 0; |
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} |
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static int sst_platform_alloc_stream(struct snd_pcm_substream *substream, |
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struct snd_soc_dai *dai) |
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{ |
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struct sst_runtime_stream *stream = |
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substream->runtime->private_data; |
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struct snd_sst_stream_params param = {{{0,},},}; |
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struct snd_sst_params str_params = {0}; |
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struct snd_sst_alloc_params_ext alloc_params = {0}; |
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int ret_val = 0; |
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struct sst_data *ctx = snd_soc_dai_get_drvdata(dai); |
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/* set codec params and inform SST driver the same */ |
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sst_fill_pcm_params(substream, ¶m); |
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sst_fill_alloc_params(substream, &alloc_params); |
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substream->runtime->dma_area = substream->dma_buffer.area; |
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str_params.sparams = param; |
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str_params.aparams = alloc_params; |
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str_params.codec = SST_CODEC_TYPE_PCM; |
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/* fill the device type and stream id to pass to SST driver */ |
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ret_val = sst_fill_stream_params(substream, ctx, &str_params, false); |
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if (ret_val < 0) |
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return ret_val; |
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stream->stream_info.str_id = str_params.stream_id; |
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ret_val = stream->ops->open(sst->dev, &str_params); |
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if (ret_val <= 0) |
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return ret_val; |
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return ret_val; |
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} |
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static void sst_period_elapsed(void *arg) |
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{ |
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struct snd_pcm_substream *substream = arg; |
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struct sst_runtime_stream *stream; |
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int status; |
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if (!substream || !substream->runtime) |
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return; |
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stream = substream->runtime->private_data; |
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if (!stream) |
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return; |
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status = sst_get_stream_status(stream); |
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if (status != SST_PLATFORM_RUNNING) |
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return; |
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snd_pcm_period_elapsed(substream); |
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} |
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static int sst_platform_init_stream(struct snd_pcm_substream *substream) |
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{ |
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struct sst_runtime_stream *stream = |
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substream->runtime->private_data; |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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int ret_val; |
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dev_dbg(rtd->dev, "setting buffer ptr param\n"); |
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sst_set_stream_status(stream, SST_PLATFORM_INIT); |
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stream->stream_info.period_elapsed = sst_period_elapsed; |
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stream->stream_info.arg = substream; |
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stream->stream_info.buffer_ptr = 0; |
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stream->stream_info.sfreq = substream->runtime->rate; |
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ret_val = stream->ops->stream_init(sst->dev, &stream->stream_info); |
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if (ret_val) |
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dev_err(rtd->dev, "control_set ret error %d\n", ret_val); |
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return ret_val; |
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} |
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static int power_up_sst(struct sst_runtime_stream *stream) |
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{ |
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return stream->ops->power(sst->dev, true); |
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} |
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static void power_down_sst(struct sst_runtime_stream *stream) |
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{ |
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stream->ops->power(sst->dev, false); |
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} |
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static int sst_media_open(struct snd_pcm_substream *substream, |
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struct snd_soc_dai *dai) |
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{ |
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int ret_val = 0; |
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struct snd_pcm_runtime *runtime = substream->runtime; |
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struct sst_runtime_stream *stream; |
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stream = kzalloc(sizeof(*stream), GFP_KERNEL); |
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if (!stream) |
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return -ENOMEM; |
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spin_lock_init(&stream->status_lock); |
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/* get the sst ops */ |
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mutex_lock(&sst_lock); |
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if (!sst || |
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!try_module_get(sst->dev->driver->owner)) { |
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dev_err(dai->dev, "no device available to run\n"); |
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ret_val = -ENODEV; |
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goto out_ops; |
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} |
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stream->ops = sst->ops; |
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mutex_unlock(&sst_lock); |
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stream->stream_info.str_id = 0; |
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stream->stream_info.arg = substream; |
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/* allocate memory for SST API set */ |
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runtime->private_data = stream; |
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ret_val = power_up_sst(stream); |
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if (ret_val < 0) |
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goto out_power_up; |
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/* |
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* Make sure the period to be multiple of 1ms to align the |
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* design of firmware. Apply same rule to buffer size to make |
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* sure alsa could always find a value for period size |
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* regardless the buffer size given by user space. |
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*/ |
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snd_pcm_hw_constraint_step(substream->runtime, 0, |
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SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 48); |
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snd_pcm_hw_constraint_step(substream->runtime, 0, |
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SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 48); |
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/* Make sure, that the period size is always even */ |
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snd_pcm_hw_constraint_step(substream->runtime, 0, |
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SNDRV_PCM_HW_PARAM_PERIODS, 2); |
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return snd_pcm_hw_constraint_integer(runtime, |
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SNDRV_PCM_HW_PARAM_PERIODS); |
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out_ops: |
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mutex_unlock(&sst_lock); |
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out_power_up: |
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kfree(stream); |
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return ret_val; |
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} |
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static void sst_media_close(struct snd_pcm_substream *substream, |
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struct snd_soc_dai *dai) |
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{ |
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struct sst_runtime_stream *stream; |
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int str_id; |
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stream = substream->runtime->private_data; |
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power_down_sst(stream); |
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str_id = stream->stream_info.str_id; |
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if (str_id) |
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stream->ops->close(sst->dev, str_id); |
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module_put(sst->dev->driver->owner); |
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kfree(stream); |
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} |
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static int sst_media_prepare(struct snd_pcm_substream *substream, |
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struct snd_soc_dai *dai) |
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{ |
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struct sst_runtime_stream *stream; |
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int ret_val, str_id; |
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stream = substream->runtime->private_data; |
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str_id = stream->stream_info.str_id; |
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if (stream->stream_info.str_id) { |
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ret_val = stream->ops->stream_drop(sst->dev, str_id); |
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return ret_val; |
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} |
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ret_val = sst_platform_alloc_stream(substream, dai); |
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if (ret_val <= 0) |
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return ret_val; |
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snprintf(substream->pcm->id, sizeof(substream->pcm->id), |
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"%d", stream->stream_info.str_id); |
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ret_val = sst_platform_init_stream(substream); |
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if (ret_val) |
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return ret_val; |
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substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER; |
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return 0; |
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} |
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static int sst_enable_ssp(struct snd_pcm_substream *substream, |
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struct snd_soc_dai *dai) |
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{ |
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int ret = 0; |
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if (!snd_soc_dai_active(dai)) { |
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ret = sst_handle_vb_timer(dai, true); |
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sst_fill_ssp_defaults(dai); |
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} |
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return ret; |
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} |
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static int sst_be_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params, |
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struct snd_soc_dai *dai) |
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{ |
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int ret = 0; |
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if (snd_soc_dai_active(dai) == 1) |
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ret = send_ssp_cmd(dai, dai->name, 1); |
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return ret; |
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} |
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static int sst_set_format(struct snd_soc_dai *dai, unsigned int fmt) |
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{ |
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int ret = 0; |
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if (!snd_soc_dai_active(dai)) |
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return 0; |
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ret = sst_fill_ssp_config(dai, fmt); |
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if (ret < 0) |
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dev_err(dai->dev, "sst_set_format failed..\n"); |
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return ret; |
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} |
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static int sst_platform_set_ssp_slot(struct snd_soc_dai *dai, |
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unsigned int tx_mask, unsigned int rx_mask, |
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int slots, int slot_width) { |
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int ret = 0; |
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if (!snd_soc_dai_active(dai)) |
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return ret; |
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ret = sst_fill_ssp_slot(dai, tx_mask, rx_mask, slots, slot_width); |
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if (ret < 0) |
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dev_err(dai->dev, "sst_fill_ssp_slot failed..%d\n", ret); |
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return ret; |
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} |
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static void sst_disable_ssp(struct snd_pcm_substream *substream, |
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struct snd_soc_dai *dai) |
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{ |
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if (!snd_soc_dai_active(dai)) { |
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send_ssp_cmd(dai, dai->name, 0); |
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sst_handle_vb_timer(dai, false); |
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} |
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} |
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static const struct snd_soc_dai_ops sst_media_dai_ops = { |
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.startup = sst_media_open, |
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.shutdown = sst_media_close, |
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.prepare = sst_media_prepare, |
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.mute_stream = sst_media_digital_mute, |
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}; |
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static const struct snd_soc_dai_ops sst_compr_dai_ops = { |
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.mute_stream = sst_media_digital_mute, |
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}; |
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static const struct snd_soc_dai_ops sst_be_dai_ops = { |
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.startup = sst_enable_ssp, |
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.hw_params = sst_be_hw_params, |
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.set_fmt = sst_set_format, |
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.set_tdm_slot = sst_platform_set_ssp_slot, |
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.shutdown = sst_disable_ssp, |
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}; |
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static struct snd_soc_dai_driver sst_platform_dai[] = { |
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{ |
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.name = "media-cpu-dai", |
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.ops = &sst_media_dai_ops, |
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.playback = { |
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.stream_name = "Headset Playback", |
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.channels_min = SST_STEREO, |
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.channels_max = SST_STEREO, |
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.rates = SNDRV_PCM_RATE_48000, |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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}, |
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.capture = { |
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.stream_name = "Headset Capture", |
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.channels_min = 1, |
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.channels_max = 2, |
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.rates = SNDRV_PCM_RATE_48000, |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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}, |
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}, |
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{ |
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.name = "deepbuffer-cpu-dai", |
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.ops = &sst_media_dai_ops, |
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.playback = { |
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.stream_name = "Deepbuffer Playback", |
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.channels_min = SST_STEREO, |
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.channels_max = SST_STEREO, |
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.rates = SNDRV_PCM_RATE_48000, |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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}, |
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}, |
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{ |
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.name = "compress-cpu-dai", |
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.compress_new = snd_soc_new_compress, |
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.ops = &sst_compr_dai_ops, |
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.playback = { |
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.stream_name = "Compress Playback", |
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.channels_min = 1, |
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}, |
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}, |
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/* BE CPU Dais */ |
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{ |
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.name = "ssp0-port", |
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.ops = &sst_be_dai_ops, |
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.playback = { |
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.stream_name = "ssp0 Tx", |
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.channels_min = SST_STEREO, |
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.channels_max = SST_STEREO, |
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.rates = SNDRV_PCM_RATE_48000, |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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}, |
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.capture = { |
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.stream_name = "ssp0 Rx", |
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.channels_min = SST_STEREO, |
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.channels_max = SST_STEREO, |
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.rates = SNDRV_PCM_RATE_48000, |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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}, |
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}, |
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{ |
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.name = "ssp1-port", |
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.ops = &sst_be_dai_ops, |
|
.playback = { |
|
.stream_name = "ssp1 Tx", |
|
.channels_min = SST_STEREO, |
|
.channels_max = SST_STEREO, |
|
.rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_48000, |
|
.formats = SNDRV_PCM_FMTBIT_S16_LE, |
|
}, |
|
.capture = { |
|
.stream_name = "ssp1 Rx", |
|
.channels_min = SST_STEREO, |
|
.channels_max = SST_STEREO, |
|
.rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_48000, |
|
.formats = SNDRV_PCM_FMTBIT_S16_LE, |
|
}, |
|
}, |
|
{ |
|
.name = "ssp2-port", |
|
.ops = &sst_be_dai_ops, |
|
.playback = { |
|
.stream_name = "ssp2 Tx", |
|
.channels_min = SST_STEREO, |
|
.channels_max = SST_STEREO, |
|
.rates = SNDRV_PCM_RATE_48000, |
|
.formats = SNDRV_PCM_FMTBIT_S16_LE, |
|
}, |
|
.capture = { |
|
.stream_name = "ssp2 Rx", |
|
.channels_min = SST_STEREO, |
|
.channels_max = SST_STEREO, |
|
.rates = SNDRV_PCM_RATE_48000, |
|
.formats = SNDRV_PCM_FMTBIT_S16_LE, |
|
}, |
|
}, |
|
}; |
|
|
|
static int sst_soc_open(struct snd_soc_component *component, |
|
struct snd_pcm_substream *substream) |
|
{ |
|
struct snd_pcm_runtime *runtime; |
|
|
|
if (substream->pcm->internal) |
|
return 0; |
|
|
|
runtime = substream->runtime; |
|
runtime->hw = sst_platform_pcm_hw; |
|
return 0; |
|
} |
|
|
|
static int sst_soc_trigger(struct snd_soc_component *component, |
|
struct snd_pcm_substream *substream, int cmd) |
|
{ |
|
int ret_val = 0, str_id; |
|
struct sst_runtime_stream *stream; |
|
int status; |
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
|
|
|
dev_dbg(rtd->dev, "%s called\n", __func__); |
|
if (substream->pcm->internal) |
|
return 0; |
|
stream = substream->runtime->private_data; |
|
str_id = stream->stream_info.str_id; |
|
switch (cmd) { |
|
case SNDRV_PCM_TRIGGER_START: |
|
dev_dbg(rtd->dev, "sst: Trigger Start\n"); |
|
status = SST_PLATFORM_RUNNING; |
|
stream->stream_info.arg = substream; |
|
ret_val = stream->ops->stream_start(sst->dev, str_id); |
|
break; |
|
case SNDRV_PCM_TRIGGER_STOP: |
|
dev_dbg(rtd->dev, "sst: in stop\n"); |
|
status = SST_PLATFORM_DROPPED; |
|
ret_val = stream->ops->stream_drop(sst->dev, str_id); |
|
break; |
|
case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
|
case SNDRV_PCM_TRIGGER_SUSPEND: |
|
dev_dbg(rtd->dev, "sst: in pause\n"); |
|
status = SST_PLATFORM_PAUSED; |
|
ret_val = stream->ops->stream_pause(sst->dev, str_id); |
|
break; |
|
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
|
case SNDRV_PCM_TRIGGER_RESUME: |
|
dev_dbg(rtd->dev, "sst: in pause release\n"); |
|
status = SST_PLATFORM_RUNNING; |
|
ret_val = stream->ops->stream_pause_release(sst->dev, str_id); |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
if (!ret_val) |
|
sst_set_stream_status(stream, status); |
|
|
|
return ret_val; |
|
} |
|
|
|
|
|
static snd_pcm_uframes_t sst_soc_pointer(struct snd_soc_component *component, |
|
struct snd_pcm_substream *substream) |
|
{ |
|
struct sst_runtime_stream *stream; |
|
int ret_val, status; |
|
struct pcm_stream_info *str_info; |
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
|
|
|
stream = substream->runtime->private_data; |
|
status = sst_get_stream_status(stream); |
|
if (status == SST_PLATFORM_INIT) |
|
return 0; |
|
str_info = &stream->stream_info; |
|
ret_val = stream->ops->stream_read_tstamp(sst->dev, str_info); |
|
if (ret_val) { |
|
dev_err(rtd->dev, "sst: error code = %d\n", ret_val); |
|
return ret_val; |
|
} |
|
substream->runtime->delay = str_info->pcm_delay; |
|
return str_info->buffer_ptr; |
|
} |
|
|
|
static int sst_soc_pcm_new(struct snd_soc_component *component, |
|
struct snd_soc_pcm_runtime *rtd) |
|
{ |
|
struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0); |
|
struct snd_pcm *pcm = rtd->pcm; |
|
|
|
if (dai->driver->playback.channels_min || |
|
dai->driver->capture.channels_min) { |
|
snd_pcm_set_managed_buffer_all(pcm, |
|
SNDRV_DMA_TYPE_CONTINUOUS, |
|
snd_dma_continuous_data(GFP_DMA), |
|
SST_MIN_BUFFER, SST_MAX_BUFFER); |
|
} |
|
return 0; |
|
} |
|
|
|
static int sst_soc_probe(struct snd_soc_component *component) |
|
{ |
|
struct sst_data *drv = dev_get_drvdata(component->dev); |
|
|
|
drv->soc_card = component->card; |
|
return sst_dsp_init_v2_dpcm(component); |
|
} |
|
|
|
static void sst_soc_remove(struct snd_soc_component *component) |
|
{ |
|
struct sst_data *drv = dev_get_drvdata(component->dev); |
|
|
|
drv->soc_card = NULL; |
|
} |
|
|
|
static const struct snd_soc_component_driver sst_soc_platform_drv = { |
|
.name = DRV_NAME, |
|
.probe = sst_soc_probe, |
|
.remove = sst_soc_remove, |
|
.open = sst_soc_open, |
|
.trigger = sst_soc_trigger, |
|
.pointer = sst_soc_pointer, |
|
.compress_ops = &sst_platform_compress_ops, |
|
.pcm_construct = sst_soc_pcm_new, |
|
}; |
|
|
|
static int sst_platform_probe(struct platform_device *pdev) |
|
{ |
|
struct sst_data *drv; |
|
int ret; |
|
struct sst_platform_data *pdata; |
|
|
|
drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); |
|
if (drv == NULL) { |
|
return -ENOMEM; |
|
} |
|
|
|
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); |
|
if (pdata == NULL) { |
|
return -ENOMEM; |
|
} |
|
|
|
pdata->pdev_strm_map = dpcm_strm_map; |
|
pdata->strm_map_size = ARRAY_SIZE(dpcm_strm_map); |
|
drv->pdata = pdata; |
|
drv->pdev = pdev; |
|
mutex_init(&drv->lock); |
|
dev_set_drvdata(&pdev->dev, drv); |
|
|
|
ret = devm_snd_soc_register_component(&pdev->dev, &sst_soc_platform_drv, |
|
sst_platform_dai, ARRAY_SIZE(sst_platform_dai)); |
|
if (ret) |
|
dev_err(&pdev->dev, "registering cpu dais failed\n"); |
|
|
|
return ret; |
|
} |
|
|
|
static int sst_platform_remove(struct platform_device *pdev) |
|
{ |
|
dev_dbg(&pdev->dev, "sst_platform_remove success\n"); |
|
return 0; |
|
} |
|
|
|
#ifdef CONFIG_PM_SLEEP |
|
|
|
static int sst_soc_prepare(struct device *dev) |
|
{ |
|
struct sst_data *drv = dev_get_drvdata(dev); |
|
struct snd_soc_pcm_runtime *rtd; |
|
|
|
if (!drv->soc_card) |
|
return 0; |
|
|
|
/* suspend all pcms first */ |
|
snd_soc_suspend(drv->soc_card->dev); |
|
snd_soc_poweroff(drv->soc_card->dev); |
|
|
|
/* set the SSPs to idle */ |
|
for_each_card_rtds(drv->soc_card, rtd) { |
|
struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0); |
|
|
|
if (snd_soc_dai_active(dai)) { |
|
send_ssp_cmd(dai, dai->name, 0); |
|
sst_handle_vb_timer(dai, false); |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void sst_soc_complete(struct device *dev) |
|
{ |
|
struct sst_data *drv = dev_get_drvdata(dev); |
|
struct snd_soc_pcm_runtime *rtd; |
|
|
|
if (!drv->soc_card) |
|
return; |
|
|
|
/* restart SSPs */ |
|
for_each_card_rtds(drv->soc_card, rtd) { |
|
struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0); |
|
|
|
if (snd_soc_dai_active(dai)) { |
|
sst_handle_vb_timer(dai, true); |
|
send_ssp_cmd(dai, dai->name, 1); |
|
} |
|
} |
|
snd_soc_resume(drv->soc_card->dev); |
|
} |
|
|
|
#else |
|
|
|
#define sst_soc_prepare NULL |
|
#define sst_soc_complete NULL |
|
|
|
#endif |
|
|
|
|
|
static const struct dev_pm_ops sst_platform_pm = { |
|
.prepare = sst_soc_prepare, |
|
.complete = sst_soc_complete, |
|
}; |
|
|
|
static struct platform_driver sst_platform_driver = { |
|
.driver = { |
|
.name = "sst-mfld-platform", |
|
.pm = &sst_platform_pm, |
|
}, |
|
.probe = sst_platform_probe, |
|
.remove = sst_platform_remove, |
|
}; |
|
|
|
module_platform_driver(sst_platform_driver); |
|
|
|
MODULE_DESCRIPTION("ASoC Intel(R) MID Platform driver"); |
|
MODULE_AUTHOR("Vinod Koul <[email protected]>"); |
|
MODULE_AUTHOR("Harsha Priya <[email protected]>"); |
|
MODULE_LICENSE("GPL v2"); |
|
MODULE_ALIAS("platform:sst-atom-hifi2-platform"); |
|
MODULE_ALIAS("platform:sst-mfld-platform");
|
|
|