| // 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); |