// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) // // This file is provided under a dual BSD/GPLv2 license. When using or // redistributing this file, you may do so under either license. // // Copyright(c) 2019-2020 Intel Corporation. All rights reserved. // // Author: Cezary Rojewski <cezary.rojewski@intel.com> // #include <sound/soc.h> #include "compress.h" #include "ops.h" #include "probe.h" struct snd_compr_ops sof_probe_compressed_ops = { .copy = sof_probe_compr_copy, }; EXPORT_SYMBOL(sof_probe_compressed_ops); int sof_probe_compr_open(struct snd_compr_stream *cstream, struct snd_soc_dai *dai) { struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(dai->component); int ret; ret = snd_sof_probe_compr_assign(sdev, cstream, dai); if (ret < 0) { dev_err(dai->dev, "Failed to assign probe stream: %d\n", ret); return ret; } sdev->extractor_stream_tag = ret; return 0; } EXPORT_SYMBOL(sof_probe_compr_open); int sof_probe_compr_free(struct snd_compr_stream *cstream, struct snd_soc_dai *dai) { struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(dai->component); struct sof_probe_point_desc *desc; size_t num_desc; int i, ret; /* disconnect all probe points */ ret = sof_ipc_probe_points_info(sdev, &desc, &num_desc); if (ret < 0) { dev_err(dai->dev, "Failed to get probe points: %d\n", ret); goto exit; } for (i = 0; i < num_desc; i++) sof_ipc_probe_points_remove(sdev, &desc[i].buffer_id, 1); kfree(desc); exit: ret = sof_ipc_probe_deinit(sdev); if (ret < 0) dev_err(dai->dev, "Failed to deinit probe: %d\n", ret); sdev->extractor_stream_tag = SOF_PROBE_INVALID_NODE_ID; snd_compr_free_pages(cstream); return snd_sof_probe_compr_free(sdev, cstream, dai); } EXPORT_SYMBOL(sof_probe_compr_free); int sof_probe_compr_set_params(struct snd_compr_stream *cstream, struct snd_compr_params *params, struct snd_soc_dai *dai) { struct snd_compr_runtime *rtd = cstream->runtime; struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(dai->component); int ret; cstream->dma_buffer.dev.type = SNDRV_DMA_TYPE_DEV_SG; cstream->dma_buffer.dev.dev = sdev->dev; ret = snd_compr_malloc_pages(cstream, rtd->buffer_size); if (ret < 0) return ret; ret = snd_sof_probe_compr_set_params(sdev, cstream, params, dai); if (ret < 0) return ret; ret = sof_ipc_probe_init(sdev, sdev->extractor_stream_tag, rtd->dma_bytes); if (ret < 0) { dev_err(dai->dev, "Failed to init probe: %d\n", ret); return ret; } return 0; } EXPORT_SYMBOL(sof_probe_compr_set_params); int sof_probe_compr_trigger(struct snd_compr_stream *cstream, int cmd, struct snd_soc_dai *dai) { struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(dai->component); return snd_sof_probe_compr_trigger(sdev, cstream, cmd, dai); } EXPORT_SYMBOL(sof_probe_compr_trigger); int sof_probe_compr_pointer(struct snd_compr_stream *cstream, struct snd_compr_tstamp *tstamp, struct snd_soc_dai *dai) { struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(dai->component); return snd_sof_probe_compr_pointer(sdev, cstream, tstamp, dai); } EXPORT_SYMBOL(sof_probe_compr_pointer); int sof_probe_compr_copy(struct snd_compr_stream *cstream, char __user *buf, size_t count) { struct snd_compr_runtime *rtd = cstream->runtime; unsigned int offset, n; void *ptr; int ret; if (count > rtd->buffer_size) count = rtd->buffer_size; div_u64_rem(rtd->total_bytes_transferred, rtd->buffer_size, &offset); ptr = rtd->dma_area + offset; n = rtd->buffer_size - offset; if (count < n) { ret = copy_to_user(buf, ptr, count); } else { ret = copy_to_user(buf, ptr, n); ret += copy_to_user(buf + n, rtd->dma_area, count - n); } if (ret) return count - ret; return count; } EXPORT_SYMBOL(sof_probe_compr_copy);