From 7bbdda8009001d66611314e67a3f498d4b412c64 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Date: Thu, 16 Sep 2021 13:32:09 +0300
Subject: [PATCH] ASoC: SOF: probe: Merge and clean up the probe and compress files
Git-commit: 7bbdda8009001d66611314e67a3f498d4b412c64
Patch-mainline: v5.16-rc1
References: jsc#PED-850
The probe debug functionality is implemented via compress support and it
was spread across two set of files:
probe.c/h
compress.c/h
Merge the two files into sof-probes.s/h and clean them up by removing
unused struct definitions, functions. We can also move most of the
functions static as they are only used internally.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20210916103211.1573-5-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
sound/soc/sof/Makefile | 3 +-
sound/soc/sof/compress.c | 152 --------------
sound/soc/sof/compress.h | 19 --
sound/soc/sof/core.c | 2 +-
sound/soc/sof/debug.c | 2 +-
sound/soc/sof/intel/hda-dai.c | 2 +-
sound/soc/sof/pcm.c | 2 +-
sound/soc/sof/probe.c | 290 ---------------------------
sound/soc/sof/probe.h | 85 --------
sound/soc/sof/sof-probes.c | 364 ++++++++++++++++++++++++++++++++++
sound/soc/sof/sof-probes.h | 38 ++++
11 files changed, 408 insertions(+), 551 deletions(-)
delete mode 100644 sound/soc/sof/compress.c
delete mode 100644 sound/soc/sof/compress.h
delete mode 100644 sound/soc/sof/probe.c
delete mode 100644 sound/soc/sof/probe.h
create mode 100644 sound/soc/sof/sof-probes.c
create mode 100644 sound/soc/sof/sof-probes.h
diff --git a/sound/soc/sof/Makefile b/sound/soc/sof/Makefile
index 606d8137cd98..bdea0faac117 100644
--- a/sound/soc/sof/Makefile
+++ b/sound/soc/sof/Makefile
@@ -2,7 +2,8 @@
snd-sof-objs := core.o ops.o loader.o ipc.o pcm.o pm.o debug.o topology.o\
control.o trace.o utils.o sof-audio.o
-snd-sof-$(CONFIG_SND_SOC_SOF_DEBUG_PROBES) += probe.o compress.o
+
+snd-sof-$(CONFIG_SND_SOC_SOF_DEBUG_PROBES) += sof-probes.o
snd-sof-pci-objs := sof-pci-dev.o
snd-sof-acpi-objs := sof-acpi-dev.o
diff --git a/sound/soc/sof/compress.c b/sound/soc/sof/compress.c
deleted file mode 100644
index 3d12851dc6b3..000000000000
--- a/sound/soc/sof/compress.c
+++ /dev/null
@@ -1,152 +0,0 @@
-// SPDX-License-Identifier: (GPL-2.0-only 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"
-
-static 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;
-}
-
-static 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);
-}
-
-static 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;
-}
-
-static 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);
-}
-
-static 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);
-}
-
-struct snd_soc_cdai_ops sof_probe_compr_ops = {
- .startup = sof_probe_compr_open,
- .shutdown = sof_probe_compr_free,
- .set_params = sof_probe_compr_set_params,
- .trigger = sof_probe_compr_trigger,
- .pointer = sof_probe_compr_pointer,
-};
-EXPORT_SYMBOL(sof_probe_compr_ops);
-
-static int sof_probe_compr_copy(struct snd_soc_component *component,
- 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;
-}
-
-const struct snd_compress_ops sof_probe_compressed_ops = {
- .copy = sof_probe_compr_copy,
-};
-EXPORT_SYMBOL(sof_probe_compressed_ops);
diff --git a/sound/soc/sof/compress.h b/sound/soc/sof/compress.h
deleted file mode 100644
index f49b3ddb4403..000000000000
--- a/sound/soc/sof/compress.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0-only 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>
- */
-
-#ifndef __SOF_COMPRESS_H
-#define __SOF_COMPRESS_H
-
-#include <sound/compress_driver.h>
-
-extern struct snd_soc_cdai_ops sof_probe_compr_ops;
-extern const struct snd_compress_ops sof_probe_compressed_ops;
-
-#endif
diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c
index 6be4f159ee35..b8989f926f8f 100644
--- a/sound/soc/sof/core.c
+++ b/sound/soc/sof/core.c
@@ -15,7 +15,7 @@
#include "sof-priv.h"
#include "ops.h"
#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES)
-#include "probe.h"
+#include "sof-probes.h"
#endif
/* see SOF_DBG_ flags */
diff --git a/sound/soc/sof/debug.c b/sound/soc/sof/debug.c
index af92baacd23e..f37ea1956406 100644
--- a/sound/soc/sof/debug.c
+++ b/sound/soc/sof/debug.c
@@ -20,7 +20,7 @@
#include "ops.h"
#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES)
-#include "probe.h"
+#include "sof-probes.h"
/**
* strsplit_u32 - Split string into sequence of u32 tokens
diff --git a/sound/soc/sof/intel/hda-dai.c b/sound/soc/sof/intel/hda-dai.c
index 46fb8add237e..2f54a659b78a 100644
--- a/sound/soc/sof/intel/hda-dai.c
+++ b/sound/soc/sof/intel/hda-dai.c
@@ -17,7 +17,7 @@
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES)
-#include "../compress.h"
+#include "../sof-probes.h"
#endif
struct hda_pipe_params {
diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c
index 2cfc0e24fec1..b4280459e5db 100644
--- a/sound/soc/sof/pcm.c
+++ b/sound/soc/sof/pcm.c
@@ -17,7 +17,7 @@
#include "sof-audio.h"
#include "ops.h"
#if IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_PROBES)
-#include "compress.h"
+#include "sof-probes.h"
#endif
/* Create DMA buffer page table for DSP */
diff --git a/sound/soc/sof/probe.c b/sound/soc/sof/probe.c
deleted file mode 100644
index 14509f4d3f86..000000000000
--- a/sound/soc/sof/probe.c
+++ /dev/null
@@ -1,290 +0,0 @@
-// SPDX-License-Identifier: (GPL-2.0-only 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 "sof-priv.h"
-#include "probe.h"
-
-/**
- * sof_ipc_probe_init - initialize data probing
- * @sdev: SOF sound device
- * @stream_tag: Extractor stream tag
- * @buffer_size: DMA buffer size to set for extractor
- *
- * Host chooses whether extraction is supported or not by providing
- * valid stream tag to DSP. Once specified, stream described by that
- * tag will be tied to DSP for extraction for the entire lifetime of
- * probe.
- *
- * Probing is initialized only once and each INIT request must be
- * matched by DEINIT call.
- */
-int sof_ipc_probe_init(struct snd_sof_dev *sdev,
- u32 stream_tag, size_t buffer_size)
-{
- struct sof_ipc_probe_dma_add_params *msg;
- struct sof_ipc_reply reply;
- size_t size = struct_size(msg, dma, 1);
- int ret;
-
- msg = kmalloc(size, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
- msg->hdr.size = size;
- msg->hdr.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_INIT;
- msg->num_elems = 1;
- msg->dma[0].stream_tag = stream_tag;
- msg->dma[0].dma_buffer_size = buffer_size;
-
- ret = sof_ipc_tx_message(sdev->ipc, msg->hdr.cmd, msg, msg->hdr.size,
- &reply, sizeof(reply));
- kfree(msg);
- return ret;
-}
-EXPORT_SYMBOL(sof_ipc_probe_init);
-
-/**
- * sof_ipc_probe_deinit - cleanup after data probing
- * @sdev: SOF sound device
- *
- * Host sends DEINIT request to free previously initialized probe
- * on DSP side once it is no longer needed. DEINIT only when there
- * are no probes connected and with all injectors detached.
- */
-int sof_ipc_probe_deinit(struct snd_sof_dev *sdev)
-{
- struct sof_ipc_cmd_hdr msg;
- struct sof_ipc_reply reply;
-
- msg.size = sizeof(msg);
- msg.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_DEINIT;
-
- return sof_ipc_tx_message(sdev->ipc, msg.cmd, &msg, msg.size,
- &reply, sizeof(reply));
-}
-EXPORT_SYMBOL(sof_ipc_probe_deinit);
-
-static int sof_ipc_probe_info(struct snd_sof_dev *sdev, unsigned int cmd,
- void **params, size_t *num_params)
-{
- struct sof_ipc_probe_info_params msg = {{{0}}};
- struct sof_ipc_probe_info_params *reply;
- size_t bytes;
- int ret;
-
- *params = NULL;
- *num_params = 0;
-
- reply = kzalloc(SOF_IPC_MSG_MAX_SIZE, GFP_KERNEL);
- if (!reply)
- return -ENOMEM;
- msg.rhdr.hdr.size = sizeof(msg);
- msg.rhdr.hdr.cmd = SOF_IPC_GLB_PROBE | cmd;
-
- ret = sof_ipc_tx_message(sdev->ipc, msg.rhdr.hdr.cmd, &msg,
- msg.rhdr.hdr.size, reply, SOF_IPC_MSG_MAX_SIZE);
- if (ret < 0 || reply->rhdr.error < 0)
- goto exit;
-
- if (!reply->num_elems)
- goto exit;
-
- if (cmd == SOF_IPC_PROBE_DMA_INFO)
- bytes = sizeof(reply->dma[0]);
- else
- bytes = sizeof(reply->desc[0]);
- bytes *= reply->num_elems;
- *params = kmemdup(&reply->dma[0], bytes, GFP_KERNEL);
- if (!*params) {
- ret = -ENOMEM;
- goto exit;
- }
- *num_params = reply->num_elems;
-
-exit:
- kfree(reply);
- return ret;
-}
-
-/**
- * sof_ipc_probe_dma_info - retrieve list of active injection dmas
- * @sdev: SOF sound device
- * @dma: Returned list of active dmas
- * @num_dma: Returned count of active dmas
- *
- * Host sends DMA_INFO request to obtain list of injection dmas it
- * can use to transfer data over with.
- *
- * Note that list contains only injection dmas as there is only one
- * extractor (dma) and it is always assigned on probing init.
- * DSP knows exactly where data from extraction probes is going to,
- * which is not the case for injection where multiple streams
- * could be engaged.
- */
-int sof_ipc_probe_dma_info(struct snd_sof_dev *sdev,
- struct sof_probe_dma **dma, size_t *num_dma)
-{
- return sof_ipc_probe_info(sdev, SOF_IPC_PROBE_DMA_INFO,
- (void **)dma, num_dma);
-}
-EXPORT_SYMBOL(sof_ipc_probe_dma_info);
-
-/**
- * sof_ipc_probe_dma_add - attach to specified dmas
- * @sdev: SOF sound device
- * @dma: List of streams (dmas) to attach to
- * @num_dma: Number of elements in @dma
- *
- * Contrary to extraction, injection streams are never assigned
- * on init. Before attempting any data injection, host is responsible
- * for specifying streams which will be later used to transfer data
- * to connected probe points.
- */
-int sof_ipc_probe_dma_add(struct snd_sof_dev *sdev,
- struct sof_probe_dma *dma, size_t num_dma)
-{
- struct sof_ipc_probe_dma_add_params *msg;
- struct sof_ipc_reply reply;
- size_t size = struct_size(msg, dma, num_dma);
- int ret;
-
- msg = kmalloc(size, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
- msg->hdr.size = size;
- msg->num_elems = num_dma;
- msg->hdr.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_DMA_ADD;
- memcpy(&msg->dma[0], dma, size - sizeof(*msg));
-
- ret = sof_ipc_tx_message(sdev->ipc, msg->hdr.cmd, msg, msg->hdr.size,
- &reply, sizeof(reply));
- kfree(msg);
- return ret;
-}
-EXPORT_SYMBOL(sof_ipc_probe_dma_add);
-
-/**
- * sof_ipc_probe_dma_remove - detach from specified dmas
- * @sdev: SOF sound device
- * @stream_tag: List of stream tags to detach from
- * @num_stream_tag: Number of elements in @stream_tag
- *
- * Host sends DMA_REMOVE request to free previously attached stream
- * from being occupied for injection. Each detach operation should
- * match equivalent DMA_ADD. Detach only when all probes tied to
- * given stream have been disconnected.
- */
-int sof_ipc_probe_dma_remove(struct snd_sof_dev *sdev,
- unsigned int *stream_tag, size_t num_stream_tag)
-{
- struct sof_ipc_probe_dma_remove_params *msg;
- struct sof_ipc_reply reply;
- size_t size = struct_size(msg, stream_tag, num_stream_tag);
- int ret;
-
- msg = kmalloc(size, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
- msg->hdr.size = size;
- msg->num_elems = num_stream_tag;
- msg->hdr.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_DMA_REMOVE;
- memcpy(&msg->stream_tag[0], stream_tag, size - sizeof(*msg));
-
- ret = sof_ipc_tx_message(sdev->ipc, msg->hdr.cmd, msg, msg->hdr.size,
- &reply, sizeof(reply));
- kfree(msg);
- return ret;
-}
-EXPORT_SYMBOL(sof_ipc_probe_dma_remove);
-
-/**
- * sof_ipc_probe_points_info - retrieve list of active probe points
- * @sdev: SOF sound device
- * @desc: Returned list of active probes
- * @num_desc: Returned count of active probes
- *
- * Host sends PROBE_POINT_INFO request to obtain list of active probe
- * points, valid for disconnection when given probe is no longer
- * required.
- */
-int sof_ipc_probe_points_info(struct snd_sof_dev *sdev,
- struct sof_probe_point_desc **desc, size_t *num_desc)
-{
- return sof_ipc_probe_info(sdev, SOF_IPC_PROBE_POINT_INFO,
- (void **)desc, num_desc);
-}
-EXPORT_SYMBOL(sof_ipc_probe_points_info);
-
-/**
- * sof_ipc_probe_points_add - connect specified probes
- * @sdev: SOF sound device
- * @desc: List of probe points to connect
- * @num_desc: Number of elements in @desc
- *
- * Dynamically connects to provided set of endpoints. Immediately
- * after connection is established, host must be prepared to
- * transfer data from or to target stream given the probing purpose.
- *
- * Each probe point should be removed using PROBE_POINT_REMOVE
- * request when no longer needed.
- */
-int sof_ipc_probe_points_add(struct snd_sof_dev *sdev,
- struct sof_probe_point_desc *desc, size_t num_desc)
-{
- struct sof_ipc_probe_point_add_params *msg;
- struct sof_ipc_reply reply;
- size_t size = struct_size(msg, desc, num_desc);
- int ret;
-
- msg = kmalloc(size, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
- msg->hdr.size = size;
- msg->num_elems = num_desc;
- msg->hdr.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_POINT_ADD;
- memcpy(&msg->desc[0], desc, size - sizeof(*msg));
-
- ret = sof_ipc_tx_message(sdev->ipc, msg->hdr.cmd, msg, msg->hdr.size,
- &reply, sizeof(reply));
- kfree(msg);
- return ret;
-}
-EXPORT_SYMBOL(sof_ipc_probe_points_add);
-
-/**
- * sof_ipc_probe_points_remove - disconnect specified probes
- * @sdev: SOF sound device
- * @buffer_id: List of probe points to disconnect
- * @num_buffer_id: Number of elements in @desc
- *
- * Removes previously connected probes from list of active probe
- * points and frees all resources on DSP side.
- */
-int sof_ipc_probe_points_remove(struct snd_sof_dev *sdev,
- unsigned int *buffer_id, size_t num_buffer_id)
-{
- struct sof_ipc_probe_point_remove_params *msg;
- struct sof_ipc_reply reply;
- size_t size = struct_size(msg, buffer_id, num_buffer_id);
- int ret;
-
- msg = kmalloc(size, GFP_KERNEL);
- if (!msg)
- return -ENOMEM;
- msg->hdr.size = size;
- msg->num_elems = num_buffer_id;
- msg->hdr.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_POINT_REMOVE;
- memcpy(&msg->buffer_id[0], buffer_id, size - sizeof(*msg));
-
- ret = sof_ipc_tx_message(sdev->ipc, msg->hdr.cmd, msg, msg->hdr.size,
- &reply, sizeof(reply));
- kfree(msg);
- return ret;
-}
-EXPORT_SYMBOL(sof_ipc_probe_points_remove);
diff --git a/sound/soc/sof/probe.h b/sound/soc/sof/probe.h
deleted file mode 100644
index 5e159ab239fa..000000000000
--- a/sound/soc/sof/probe.h
+++ /dev/null
@@ -1,85 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0-only 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>
- */
-
-#ifndef __SOF_PROBE_H
-#define __SOF_PROBE_H
-
-#include <sound/sof/header.h>
-
-struct snd_sof_dev;
-
-#define SOF_PROBE_INVALID_NODE_ID UINT_MAX
-
-struct sof_probe_dma {
- unsigned int stream_tag;
- unsigned int dma_buffer_size;
-} __packed;
-
-enum sof_connection_purpose {
- SOF_CONNECTION_PURPOSE_EXTRACT = 1,
- SOF_CONNECTION_PURPOSE_INJECT,
-};
-
-struct sof_probe_point_desc {
- unsigned int buffer_id;
- unsigned int purpose;
- unsigned int stream_tag;
-} __packed;
-
-struct sof_ipc_probe_dma_add_params {
- struct sof_ipc_cmd_hdr hdr;
- unsigned int num_elems;
- struct sof_probe_dma dma[];
-} __packed;
-
-struct sof_ipc_probe_info_params {
- struct sof_ipc_reply rhdr;
- unsigned int num_elems;
- union {
- struct sof_probe_dma dma[0];
- struct sof_probe_point_desc desc[0];
- };
-} __packed;
-
-struct sof_ipc_probe_dma_remove_params {
- struct sof_ipc_cmd_hdr hdr;
- unsigned int num_elems;
- unsigned int stream_tag[];
-} __packed;
-
-struct sof_ipc_probe_point_add_params {
- struct sof_ipc_cmd_hdr hdr;
- unsigned int num_elems;
- struct sof_probe_point_desc desc[];
-} __packed;
-
-struct sof_ipc_probe_point_remove_params {
- struct sof_ipc_cmd_hdr hdr;
- unsigned int num_elems;
- unsigned int buffer_id[];
-} __packed;
-
-int sof_ipc_probe_init(struct snd_sof_dev *sdev,
- u32 stream_tag, size_t buffer_size);
-int sof_ipc_probe_deinit(struct snd_sof_dev *sdev);
-int sof_ipc_probe_dma_info(struct snd_sof_dev *sdev,
- struct sof_probe_dma **dma, size_t *num_dma);
-int sof_ipc_probe_dma_add(struct snd_sof_dev *sdev,
- struct sof_probe_dma *dma, size_t num_dma);
-int sof_ipc_probe_dma_remove(struct snd_sof_dev *sdev,
- unsigned int *stream_tag, size_t num_stream_tag);
-int sof_ipc_probe_points_info(struct snd_sof_dev *sdev,
- struct sof_probe_point_desc **desc, size_t *num_desc);
-int sof_ipc_probe_points_add(struct snd_sof_dev *sdev,
- struct sof_probe_point_desc *desc, size_t num_desc);
-int sof_ipc_probe_points_remove(struct snd_sof_dev *sdev,
- unsigned int *buffer_id, size_t num_buffer_id);
-
-#endif
diff --git a/sound/soc/sof/sof-probes.c b/sound/soc/sof/sof-probes.c
new file mode 100644
index 000000000000..e394fc524445
--- /dev/null
+++ b/sound/soc/sof/sof-probes.c
@@ -0,0 +1,364 @@
+// SPDX-License-Identifier: (GPL-2.0-only 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) 2019-2021 Intel Corporation. All rights reserved.
+// Author: Cezary Rojewski <cezary.rojewski@intel.com>
+//
+
+#include <sound/soc.h>
+#include "ops.h"
+#include "sof-priv.h"
+#include "sof-probes.h"
+
+struct sof_probe_dma {
+ unsigned int stream_tag;
+ unsigned int dma_buffer_size;
+} __packed;
+
+struct sof_ipc_probe_dma_add_params {
+ struct sof_ipc_cmd_hdr hdr;
+ unsigned int num_elems;
+ struct sof_probe_dma dma[];
+} __packed;
+
+struct sof_ipc_probe_info_params {
+ struct sof_ipc_reply rhdr;
+ unsigned int num_elems;
+ union {
+ struct sof_probe_dma dma[0];
+ struct sof_probe_point_desc desc[0];
+ };
+} __packed;
+
+struct sof_ipc_probe_point_add_params {
+ struct sof_ipc_cmd_hdr hdr;
+ unsigned int num_elems;
+ struct sof_probe_point_desc desc[];
+} __packed;
+
+struct sof_ipc_probe_point_remove_params {
+ struct sof_ipc_cmd_hdr hdr;
+ unsigned int num_elems;
+ unsigned int buffer_id[];
+} __packed;
+
+/**
+ * sof_ipc_probe_init - initialize data probing
+ * @sdev: SOF sound device
+ * @stream_tag: Extractor stream tag
+ * @buffer_size: DMA buffer size to set for extractor
+ *
+ * Host chooses whether extraction is supported or not by providing
+ * valid stream tag to DSP. Once specified, stream described by that
+ * tag will be tied to DSP for extraction for the entire lifetime of
+ * probe.
+ *
+ * Probing is initialized only once and each INIT request must be
+ * matched by DEINIT call.
+ */
+static int sof_ipc_probe_init(struct snd_sof_dev *sdev, u32 stream_tag,
+ size_t buffer_size)
+{
+ struct sof_ipc_probe_dma_add_params *msg;
+ struct sof_ipc_reply reply;
+ size_t size = struct_size(msg, dma, 1);
+ int ret;
+
+ msg = kmalloc(size, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+ msg->hdr.size = size;
+ msg->hdr.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_INIT;
+ msg->num_elems = 1;
+ msg->dma[0].stream_tag = stream_tag;
+ msg->dma[0].dma_buffer_size = buffer_size;
+
+ ret = sof_ipc_tx_message(sdev->ipc, msg->hdr.cmd, msg, msg->hdr.size,
+ &reply, sizeof(reply));
+ kfree(msg);
+ return ret;
+}
+
+/**
+ * sof_ipc_probe_deinit - cleanup after data probing
+ * @sdev: SOF sound device
+ *
+ * Host sends DEINIT request to free previously initialized probe
+ * on DSP side once it is no longer needed. DEINIT only when there
+ * are no probes connected and with all injectors detached.
+ */
+static int sof_ipc_probe_deinit(struct snd_sof_dev *sdev)
+{
+ struct sof_ipc_cmd_hdr msg;
+ struct sof_ipc_reply reply;
+
+ msg.size = sizeof(msg);
+ msg.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_DEINIT;
+
+ return sof_ipc_tx_message(sdev->ipc, msg.cmd, &msg, msg.size,
+ &reply, sizeof(reply));
+}
+
+static int sof_ipc_probe_info(struct snd_sof_dev *sdev, unsigned int cmd,
+ void **params, size_t *num_params)
+{
+ struct sof_ipc_probe_info_params msg = {{{0}}};
+ struct sof_ipc_probe_info_params *reply;
+ size_t bytes;
+ int ret;
+
+ *params = NULL;
+ *num_params = 0;
+
+ reply = kzalloc(SOF_IPC_MSG_MAX_SIZE, GFP_KERNEL);
+ if (!reply)
+ return -ENOMEM;
+ msg.rhdr.hdr.size = sizeof(msg);
+ msg.rhdr.hdr.cmd = SOF_IPC_GLB_PROBE | cmd;
+
+ ret = sof_ipc_tx_message(sdev->ipc, msg.rhdr.hdr.cmd, &msg,
+ msg.rhdr.hdr.size, reply, SOF_IPC_MSG_MAX_SIZE);
+ if (ret < 0 || reply->rhdr.error < 0)
+ goto exit;
+
+ if (!reply->num_elems)
+ goto exit;
+
+ if (cmd == SOF_IPC_PROBE_DMA_INFO)
+ bytes = sizeof(reply->dma[0]);
+ else
+ bytes = sizeof(reply->desc[0]);
+ bytes *= reply->num_elems;
+ *params = kmemdup(&reply->dma[0], bytes, GFP_KERNEL);
+ if (!*params) {
+ ret = -ENOMEM;
+ goto exit;
+ }
+ *num_params = reply->num_elems;
+
+exit:
+ kfree(reply);
+ return ret;
+}
+
+/**
+ * sof_ipc_probe_points_info - retrieve list of active probe points
+ * @sdev: SOF sound device
+ * @desc: Returned list of active probes
+ * @num_desc: Returned count of active probes
+ *
+ * Host sends PROBE_POINT_INFO request to obtain list of active probe
+ * points, valid for disconnection when given probe is no longer
+ * required.
+ */
+int sof_ipc_probe_points_info(struct snd_sof_dev *sdev,
+ struct sof_probe_point_desc **desc,
+ size_t *num_desc)
+{
+ return sof_ipc_probe_info(sdev, SOF_IPC_PROBE_POINT_INFO,
+ (void **)desc, num_desc);
+}
+EXPORT_SYMBOL(sof_ipc_probe_points_info);
+
+/**
+ * sof_ipc_probe_points_add - connect specified probes
+ * @sdev: SOF sound device
+ * @desc: List of probe points to connect
+ * @num_desc: Number of elements in @desc
+ *
+ * Dynamically connects to provided set of endpoints. Immediately
+ * after connection is established, host must be prepared to
+ * transfer data from or to target stream given the probing purpose.
+ *
+ * Each probe point should be removed using PROBE_POINT_REMOVE
+ * request when no longer needed.
+ */
+int sof_ipc_probe_points_add(struct snd_sof_dev *sdev,
+ struct sof_probe_point_desc *desc, size_t num_desc)
+{
+ struct sof_ipc_probe_point_add_params *msg;
+ struct sof_ipc_reply reply;
+ size_t size = struct_size(msg, desc, num_desc);
+ int ret;
+
+ msg = kmalloc(size, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+ msg->hdr.size = size;
+ msg->num_elems = num_desc;
+ msg->hdr.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_POINT_ADD;
+ memcpy(&msg->desc[0], desc, size - sizeof(*msg));
+
+ ret = sof_ipc_tx_message(sdev->ipc, msg->hdr.cmd, msg, msg->hdr.size,
+ &reply, sizeof(reply));
+ kfree(msg);
+ return ret;
+}
+EXPORT_SYMBOL(sof_ipc_probe_points_add);
+
+/**
+ * sof_ipc_probe_points_remove - disconnect specified probes
+ * @sdev: SOF sound device
+ * @buffer_id: List of probe points to disconnect
+ * @num_buffer_id: Number of elements in @desc
+ *
+ * Removes previously connected probes from list of active probe
+ * points and frees all resources on DSP side.
+ */
+int sof_ipc_probe_points_remove(struct snd_sof_dev *sdev,
+ unsigned int *buffer_id, size_t num_buffer_id)
+{
+ struct sof_ipc_probe_point_remove_params *msg;
+ struct sof_ipc_reply reply;
+ size_t size = struct_size(msg, buffer_id, num_buffer_id);
+ int ret;
+
+ msg = kmalloc(size, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+ msg->hdr.size = size;
+ msg->num_elems = num_buffer_id;
+ msg->hdr.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_POINT_REMOVE;
+ memcpy(&msg->buffer_id[0], buffer_id, size - sizeof(*msg));
+
+ ret = sof_ipc_tx_message(sdev->ipc, msg->hdr.cmd, msg, msg->hdr.size,
+ &reply, sizeof(reply));
+ kfree(msg);
+ return ret;
+}
+EXPORT_SYMBOL(sof_ipc_probe_points_remove);
+
+static 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;
+}
+
+static 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);
+}
+
+static int sof_probe_compr_set_params(struct snd_compr_stream *cstream,
+ struct snd_compr_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(dai->component);
+ struct snd_compr_runtime *rtd = cstream->runtime;
+ 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;
+}
+
+static 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);
+}
+
+static 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);
+}
+
+struct snd_soc_cdai_ops sof_probe_compr_ops = {
+ .startup = sof_probe_compr_open,
+ .shutdown = sof_probe_compr_free,
+ .set_params = sof_probe_compr_set_params,
+ .trigger = sof_probe_compr_trigger,
+ .pointer = sof_probe_compr_pointer,
+};
+EXPORT_SYMBOL(sof_probe_compr_ops);
+
+static int sof_probe_compr_copy(struct snd_soc_component *component,
+ 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;
+}
+
+const struct snd_compress_ops sof_probe_compressed_ops = {
+ .copy = sof_probe_compr_copy,
+};
+EXPORT_SYMBOL(sof_probe_compressed_ops);
diff --git a/sound/soc/sof/sof-probes.h b/sound/soc/sof/sof-probes.h
new file mode 100644
index 000000000000..35e1dd8d9e03
--- /dev/null
+++ b/sound/soc/sof/sof-probes.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: (GPL-2.0-only 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) 2019-2021 Intel Corporation. All rights reserved.
+ * Author: Cezary Rojewski <cezary.rojewski@intel.com>
+ */
+
+#ifndef __SOF_PROBES_H
+#define __SOF_PROBES_H
+
+#include <sound/compress_driver.h>
+#include <sound/sof/header.h>
+
+struct snd_sof_dev;
+
+#define SOF_PROBE_INVALID_NODE_ID UINT_MAX
+
+struct sof_probe_point_desc {
+ unsigned int buffer_id;
+ unsigned int purpose;
+ unsigned int stream_tag;
+} __packed;
+
+int sof_ipc_probe_points_info(struct snd_sof_dev *sdev,
+ struct sof_probe_point_desc **desc,
+ size_t *num_desc);
+int sof_ipc_probe_points_add(struct snd_sof_dev *sdev,
+ struct sof_probe_point_desc *desc,
+ size_t num_desc);
+int sof_ipc_probe_points_remove(struct snd_sof_dev *sdev,
+ unsigned int *buffer_id, size_t num_buffer_id);
+
+extern struct snd_soc_cdai_ops sof_probe_compr_ops;
+extern const struct snd_compress_ops sof_probe_compressed_ops;
+
+#endif
--
2.35.3