diff options
Diffstat (limited to '')
-rw-r--r-- | sound/soc/sof/intel/intel-ipc.c | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/sound/soc/sof/intel/intel-ipc.c b/sound/soc/sof/intel/intel-ipc.c deleted file mode 100644 index e935f70d611b..000000000000 --- a/sound/soc/sof/intel/intel-ipc.c +++ /dev/null @@ -1,92 +0,0 @@ -// 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 Intel Corporation. All rights reserved. -// -// Authors: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> - -/* Intel-specific SOF IPC code */ - -#include <linux/device.h> -#include <linux/export.h> -#include <linux/module.h> -#include <linux/types.h> - -#include <sound/pcm.h> -#include <sound/sof/stream.h> - -#include "../ops.h" -#include "../sof-priv.h" - -struct intel_stream { - size_t posn_offset; -}; - -/* Mailbox-based Intel IPC implementation */ -void intel_ipc_msg_data(struct snd_sof_dev *sdev, - struct snd_pcm_substream *substream, - void *p, size_t sz) -{ - if (!substream || !sdev->stream_box.size) { - sof_mailbox_read(sdev, sdev->dsp_box.offset, p, sz); - } else { - struct intel_stream *stream = substream->runtime->private_data; - - /* The stream might already be closed */ - if (stream) - sof_mailbox_read(sdev, stream->posn_offset, p, sz); - } -} -EXPORT_SYMBOL_NS(intel_ipc_msg_data, SND_SOC_SOF_INTEL_HIFI_EP_IPC); - -int intel_ipc_pcm_params(struct snd_sof_dev *sdev, - struct snd_pcm_substream *substream, - const struct sof_ipc_pcm_params_reply *reply) -{ - struct intel_stream *stream = substream->runtime->private_data; - size_t posn_offset = reply->posn_offset; - - /* check if offset is overflow or it is not aligned */ - if (posn_offset > sdev->stream_box.size || - posn_offset % sizeof(struct sof_ipc_stream_posn) != 0) - return -EINVAL; - - stream->posn_offset = sdev->stream_box.offset + posn_offset; - - dev_dbg(sdev->dev, "pcm: stream dir %d, posn mailbox offset is %zu", - substream->stream, stream->posn_offset); - - return 0; -} -EXPORT_SYMBOL_NS(intel_ipc_pcm_params, SND_SOC_SOF_INTEL_HIFI_EP_IPC); - -int intel_pcm_open(struct snd_sof_dev *sdev, - struct snd_pcm_substream *substream) -{ - struct intel_stream *stream = kmalloc(sizeof(*stream), GFP_KERNEL); - - if (!stream) - return -ENOMEM; - - /* binding pcm substream to hda stream */ - substream->runtime->private_data = stream; - - return 0; -} -EXPORT_SYMBOL_NS(intel_pcm_open, SND_SOC_SOF_INTEL_HIFI_EP_IPC); - -int intel_pcm_close(struct snd_sof_dev *sdev, - struct snd_pcm_substream *substream) -{ - struct intel_stream *stream = substream->runtime->private_data; - - substream->runtime->private_data = NULL; - kfree(stream); - - return 0; -} -EXPORT_SYMBOL_NS(intel_pcm_close, SND_SOC_SOF_INTEL_HIFI_EP_IPC); - -MODULE_LICENSE("Dual BSD/GPL"); |