Merge series "Introduce new SOF helpers" from Daniel Baluta <daniel.baluta@oss.nxp.com>

Daniel Baluta <daniel.baluta@nxp.com>:

From: Daniel Baluta <daniel.baluta@nxp.com>

This patchseries adds new helpers in order to reduce code duplication
and prepare for compress audio support with SOF.

Bud Liviu-Alexandru (1):
  ASoC: SOF: Make Intel IPC stream ops generic

Daniel Baluta (3):
  ASoC: SOF: Introduce snd_sof_mailbox_read / snd_sof_mailbox_write
    callbacks
  ASoC: SOF: imx: Use newly introduced generic IPC stream ops
  ASoC: SOF: Introduce fragment elapsed notification API

 sound/soc/sof/Kconfig                         |  4 ++
 sound/soc/sof/Makefile                        |  3 +-
 sound/soc/sof/compress.c                      | 51 +++++++++++++++++++
 sound/soc/sof/imx/Kconfig                     |  2 +
 sound/soc/sof/imx/imx8.c                      | 39 +++++++-------
 sound/soc/sof/imx/imx8m.c                     | 26 ++++------
 sound/soc/sof/intel/Makefile                  |  3 --
 sound/soc/sof/intel/apl.c                     |  4 ++
 sound/soc/sof/intel/bdw.c                     | 12 +++--
 sound/soc/sof/intel/byt.c                     | 24 ++++++---
 sound/soc/sof/intel/cnl.c                     |  4 ++
 sound/soc/sof/intel/icl.c                     |  4 ++
 sound/soc/sof/intel/pci-tng.c                 | 12 +++--
 sound/soc/sof/intel/tgl.c                     |  4 ++
 sound/soc/sof/ipc.c                           |  6 ++-
 sound/soc/sof/ops.h                           | 15 ++++++
 sound/soc/sof/pcm.c                           |  7 ++-
 sound/soc/sof/sof-audio.h                     | 11 +++-
 sound/soc/sof/sof-priv.h                      | 28 ++++++----
 .../sof/{intel/intel-ipc.c => stream-ipc.c}   | 50 +++++++++---------
 sound/soc/sof/topology.c                      |  6 ++-
 21 files changed, 218 insertions(+), 97 deletions(-)
 create mode 100644 sound/soc/sof/compress.c
 rename sound/soc/sof/{intel/intel-ipc.c => stream-ipc.c} (58%)

--
2.27.0

sound/soc/sof/Kconfig

@@ -46,6 +46,10 @@ config SND_SOC_SOF_OF
 	  required to enable i.MX8 devices.
 	  Say Y if you need this option. If unsure select "N".
 
+config SND_SOC_SOF_COMPRESS
+	tristate
+	select SND_SOC_COMPRESS
+
 config SND_SOC_SOF_DEBUG_PROBES
 	bool "SOF enable data probing"
 	select SND_SOC_COMPRESS

sound/soc/sof/Makefile

 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
 
 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
+		control.o trace.o utils.o sof-audio.o stream-ipc.o
 
 snd-sof-$(CONFIG_SND_SOC_SOF_DEBUG_PROBES) += sof-probes.o
+snd-sof-$(CONFIG_SND_SOC_SOF_COMPRESS) += compress.o
 
 snd-sof-pci-objs := sof-pci-dev.o
 snd-sof-acpi-objs := sof-acpi-dev.o

sound/soc/sof/compress.c

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// Copyright 2021 NXP
+//
+// Author: Daniel Baluta <daniel.baluta@nxp.com>
+
+#include <sound/soc.h>
+#include <sound/sof.h>
+#include <sound/compress_driver.h>
+#include "sof-audio.h"
+#include "sof-priv.h"
+
+static void snd_sof_compr_fragment_elapsed_work(struct work_struct *work)
+{
+	struct snd_sof_pcm_stream *sps =
+		container_of(work, struct snd_sof_pcm_stream,
+			     period_elapsed_work);
+
+	snd_compr_fragment_elapsed(sps->cstream);
+}
+
+void snd_sof_compr_init_elapsed_work(struct work_struct *work)
+{
+	INIT_WORK(work, snd_sof_compr_fragment_elapsed_work);
+}
+
+/*
+ * sof compr fragment elapse, this could be called in irq thread context
+ */
+void snd_sof_compr_fragment_elapsed(struct snd_compr_stream *cstream)
+{
+	struct snd_soc_component *component;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_sof_pcm *spcm;
+
+	if (!cstream)
+		return;
+
+	rtd = cstream->private_data;
+	component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME);
+
+	spcm = snd_sof_find_spcm_dai(component, rtd);
+	if (!spcm) {
+		dev_err(component->dev,
+			"fragment elapsed called for unknown stream!\n");
+		return;
+	}
+
+	/* use the same workqueue-based solution as for PCM, cf. snd_sof_pcm_elapsed */
+	schedule_work(&spcm->stream[cstream->direction].period_elapsed_work);
+}

sound/soc/sof/imx/Kconfig

@@ -38,6 +38,7 @@ config SND_SOC_SOF_IMX8
 	tristate
 	select SND_SOC_SOF_IMX_COMMON
 	select SND_SOC_SOF_XTENSA
+	select SND_SOC_SOF_COMPRESS
 	help
 	  This option is not user-selectable but automagically handled by
 	  'select' statements at a higher level.
@@ -54,6 +55,7 @@ config SND_SOC_SOF_IMX8M
 	tristate
 	select SND_SOC_SOF_IMX_COMMON
 	select SND_SOC_SOF_XTENSA
+	select SND_SOC_SOF_COMPRESS
 	help
 	  This option is not user-selectable but automagically handled by
 	  'select' statements at a higher level.

sound/soc/sof/imx/imx8.c

@@ -369,21 +369,6 @@ static int imx8_get_bar_index(struct snd_sof_dev *sdev, u32 type)
 	return type;
 }
 
-static int imx8_ipc_msg_data(struct snd_sof_dev *sdev,
-			     struct snd_pcm_substream *substream,
-			     void *p, size_t sz)
-{
-	sof_mailbox_read(sdev, sdev->dsp_box.offset, p, sz);
-	return 0;
-}
-
-static int imx8_ipc_pcm_params(struct snd_sof_dev *sdev,
-			       struct snd_pcm_substream *substream,
-			       const struct sof_ipc_pcm_params_reply *reply)
-{
-	return 0;
-}
-
 static struct snd_soc_dai_driver imx8_dai[] = {
 {
 	.name = "esai0",
@@ -421,14 +406,18 @@ struct snd_sof_dsp_ops sof_imx8_ops = {
 	.block_read	= sof_block_read,
 	.block_write	= sof_block_write,
 
+	/* Mailbox IO */
+	.mailbox_read	= sof_mailbox_read,
+	.mailbox_write	= sof_mailbox_write,
+
 	/* ipc */
 	.send_msg	= imx8_send_msg,
 	.fw_ready	= sof_fw_ready,
 	.get_mailbox_offset	= imx8_get_mailbox_offset,
 	.get_window_offset	= imx8_get_window_offset,
 
-	.ipc_msg_data	= imx8_ipc_msg_data,
-	.ipc_pcm_params	= imx8_ipc_pcm_params,
+	.ipc_msg_data	= sof_ipc_msg_data,
+	.ipc_pcm_params	= sof_ipc_pcm_params,
 
 	/* module loading */
 	.load_module	= snd_sof_parse_module_memcpy,
@@ -440,6 +429,10 @@ struct snd_sof_dsp_ops sof_imx8_ops = {
 	.dbg_dump = imx8_dump,
 	.debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem,
 
+	/* stream callbacks */
+	.pcm_open = sof_stream_pcm_open,
+	.pcm_close = sof_stream_pcm_close,
+
 	/* Firmware ops */
 	.dsp_arch_ops = &sof_xtensa_arch_ops,
 
@@ -468,14 +461,18 @@ struct snd_sof_dsp_ops sof_imx8x_ops = {
 	.block_read	= sof_block_read,
 	.block_write	= sof_block_write,
 
+	/* Mailbox IO */
+	.mailbox_read	= sof_mailbox_read,
+	.mailbox_write	= sof_mailbox_write,
+
 	/* ipc */
 	.send_msg	= imx8_send_msg,
 	.fw_ready	= sof_fw_ready,
 	.get_mailbox_offset	= imx8_get_mailbox_offset,
 	.get_window_offset	= imx8_get_window_offset,
 
-	.ipc_msg_data	= imx8_ipc_msg_data,
-	.ipc_pcm_params	= imx8_ipc_pcm_params,
+	.ipc_msg_data	= sof_ipc_msg_data,
+	.ipc_pcm_params	= sof_ipc_pcm_params,
 
 	/* module loading */
 	.load_module	= snd_sof_parse_module_memcpy,
@@ -487,6 +484,10 @@ struct snd_sof_dsp_ops sof_imx8x_ops = {
 	.dbg_dump = imx8_dump,
 	.debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem,
 
+	/* stream callbacks */
+	.pcm_open = sof_stream_pcm_open,
+	.pcm_close = sof_stream_pcm_close,
+
 	/* Firmware ops */
 	.dsp_arch_ops = &sof_xtensa_arch_ops,
 

sound/soc/sof/imx/imx8m.c

@@ -232,21 +232,6 @@ static int imx8m_get_bar_index(struct snd_sof_dev *sdev, u32 type)
 	return type;
 }
 
-static int imx8m_ipc_msg_data(struct snd_sof_dev *sdev,
-			      struct snd_pcm_substream *substream,
-			      void *p, size_t sz)
-{
-	sof_mailbox_read(sdev, sdev->dsp_box.offset, p, sz);
-	return 0;
-}
-
-static int imx8m_ipc_pcm_params(struct snd_sof_dev *sdev,
-				struct snd_pcm_substream *substream,
-				const struct sof_ipc_pcm_params_reply *reply)
-{
-	return 0;
-}
-
 static struct snd_soc_dai_driver imx8m_dai[] = {
 {
 	.name = "sai1",
@@ -284,14 +269,18 @@ struct snd_sof_dsp_ops sof_imx8m_ops = {
 	.block_read	= sof_block_read,
 	.block_write	= sof_block_write,
 
+	/* Mailbox IO */
+	.mailbox_read	= sof_mailbox_read,
+	.mailbox_write	= sof_mailbox_write,
+
 	/* ipc */
 	.send_msg	= imx8m_send_msg,
 	.fw_ready	= sof_fw_ready,
 	.get_mailbox_offset	= imx8m_get_mailbox_offset,
 	.get_window_offset	= imx8m_get_window_offset,
 
-	.ipc_msg_data	= imx8m_ipc_msg_data,
-	.ipc_pcm_params	= imx8m_ipc_pcm_params,
+	.ipc_msg_data	= sof_ipc_msg_data,
+	.ipc_pcm_params	= sof_ipc_pcm_params,
 
 	/* module loading */
 	.load_module	= snd_sof_parse_module_memcpy,
@@ -303,6 +292,9 @@ struct snd_sof_dsp_ops sof_imx8m_ops = {
 	.dbg_dump = imx8_dump,
 	.debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem,
 
+	/* stream callbacks */
+	.pcm_open	= sof_stream_pcm_open,
+	.pcm_close	= sof_stream_pcm_close,
 	/* Firmware ops */
 	.dsp_arch_ops = &sof_xtensa_arch_ops,
 

sound/soc/sof/intel/Makefile

@@ -3,8 +3,6 @@
 snd-sof-acpi-intel-byt-objs := byt.o
 snd-sof-acpi-intel-bdw-objs := bdw.o
 
-snd-sof-intel-ipc-objs := intel-ipc.o
-
 snd-sof-intel-hda-common-objs := hda.o hda-loader.o hda-stream.o hda-trace.o \
 				 hda-dsp.o hda-ipc.o hda-ctrl.o hda-pcm.o \
 				 hda-dai.o hda-bus.o \
@@ -18,7 +16,6 @@ snd-sof-intel-atom-objs := atom.o
 obj-$(CONFIG_SND_SOC_SOF_INTEL_ATOM_HIFI_EP) += snd-sof-intel-atom.o
 obj-$(CONFIG_SND_SOC_SOF_BAYTRAIL) += snd-sof-acpi-intel-byt.o
 obj-$(CONFIG_SND_SOC_SOF_BROADWELL) += snd-sof-acpi-intel-bdw.o
-obj-$(CONFIG_SND_SOC_SOF_INTEL_HIFI_EP_IPC) += snd-sof-intel-ipc.o
 obj-$(CONFIG_SND_SOC_SOF_HDA_COMMON) += snd-sof-intel-hda-common.o
 obj-$(CONFIG_SND_SOC_SOF_HDA) += snd-sof-intel-hda.o
 

sound/soc/sof/intel/apl.c

@@ -42,6 +42,10 @@ const struct snd_sof_dsp_ops sof_apl_ops = {
 	.block_read	= sof_block_read,
 	.block_write	= sof_block_write,
 
+	/* Mailbox IO */
+	.mailbox_read	= sof_mailbox_read,
+	.mailbox_write	= sof_mailbox_write,
+
 	/* doorbell */
 	.irq_thread	= hda_dsp_ipc_irq_thread,
 

sound/soc/sof/intel/bdw.c

@@ -616,14 +616,18 @@ static const struct snd_sof_dsp_ops sof_bdw_ops = {
 	.block_read	= sof_block_read,
 	.block_write	= sof_block_write,
 
+	/* Mailbox IO */
+	.mailbox_read	= sof_mailbox_read,
+	.mailbox_write	= sof_mailbox_write,
+
 	/* ipc */
 	.send_msg	= bdw_send_msg,
 	.fw_ready	= sof_fw_ready,
 	.get_mailbox_offset = bdw_get_mailbox_offset,
 	.get_window_offset = bdw_get_window_offset,
 
-	.ipc_msg_data	= intel_ipc_msg_data,
-	.ipc_pcm_params	= intel_ipc_pcm_params,
+	.ipc_msg_data	= sof_ipc_msg_data,
+	.ipc_pcm_params	= sof_ipc_pcm_params,
 
 	/* machine driver */
 	.machine_select = bdw_machine_select,
@@ -638,8 +642,8 @@ static const struct snd_sof_dsp_ops sof_bdw_ops = {
 	.debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem,
 
 	/* stream callbacks */
-	.pcm_open	= intel_pcm_open,
-	.pcm_close	= intel_pcm_close,
+	.pcm_open	= sof_stream_pcm_open,
+	.pcm_close	= sof_stream_pcm_close,
 
 	/* Module loading */
 	.load_module    = snd_sof_parse_module_memcpy,

sound/soc/sof/intel/byt.c

@@ -226,6 +226,10 @@ static const struct snd_sof_dsp_ops sof_byt_ops = {
 	.block_read	= sof_block_read,
 	.block_write	= sof_block_write,
 
+	/* Mailbox IO */
+	.mailbox_read	= sof_mailbox_read,
+	.mailbox_write	= sof_mailbox_write,
+
 	/* doorbell */
 	.irq_handler	= atom_irq_handler,
 	.irq_thread	= atom_irq_thread,
@@ -236,8 +240,8 @@ static const struct snd_sof_dsp_ops sof_byt_ops = {
 	.get_mailbox_offset = atom_get_mailbox_offset,
 	.get_window_offset = atom_get_window_offset,
 
-	.ipc_msg_data	= intel_ipc_msg_data,
-	.ipc_pcm_params	= intel_ipc_pcm_params,
+	.ipc_msg_data	= sof_ipc_msg_data,
+	.ipc_pcm_params	= sof_ipc_pcm_params,
 
 	/* machine driver */
 	.machine_select = atom_machine_select,
@@ -252,8 +256,8 @@ static const struct snd_sof_dsp_ops sof_byt_ops = {
 	.debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem,
 
 	/* stream callbacks */
-	.pcm_open	= intel_pcm_open,
-	.pcm_close	= intel_pcm_close,
+	.pcm_open	= sof_stream_pcm_open,
+	.pcm_close	= sof_stream_pcm_close,
 
 	/* module loading */
 	.load_module	= snd_sof_parse_module_memcpy,
@@ -304,6 +308,10 @@ static const struct snd_sof_dsp_ops sof_cht_ops = {
 	.block_read	= sof_block_read,
 	.block_write	= sof_block_write,
 
+	/* Mailbox IO */
+	.mailbox_read	= sof_mailbox_read,
+	.mailbox_write	= sof_mailbox_write,
+
 	/* doorbell */
 	.irq_handler	= atom_irq_handler,
 	.irq_thread	= atom_irq_thread,
@@ -314,8 +322,8 @@ static const struct snd_sof_dsp_ops sof_cht_ops = {
 	.get_mailbox_offset = atom_get_mailbox_offset,
 	.get_window_offset = atom_get_window_offset,
 
-	.ipc_msg_data	= intel_ipc_msg_data,
-	.ipc_pcm_params	= intel_ipc_pcm_params,
+	.ipc_msg_data	= sof_ipc_msg_data,
+	.ipc_pcm_params	= sof_ipc_pcm_params,
 
 	/* machine driver */
 	.machine_select = atom_machine_select,
@@ -330,8 +338,8 @@ static const struct snd_sof_dsp_ops sof_cht_ops = {
 	.debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem,
 
 	/* stream callbacks */
-	.pcm_open	= intel_pcm_open,
-	.pcm_close	= intel_pcm_close,
+	.pcm_open	= sof_stream_pcm_open,
+	.pcm_close	= sof_stream_pcm_close,
 
 	/* module loading */
 	.load_module	= snd_sof_parse_module_memcpy,

sound/soc/sof/intel/cnl.c

@@ -247,6 +247,10 @@ const struct snd_sof_dsp_ops sof_cnl_ops = {
 	.block_read	= sof_block_read,
 	.block_write	= sof_block_write,
 
+	/* Mailbox IO */
+	.mailbox_read	= sof_mailbox_read,
+	.mailbox_write	= sof_mailbox_write,
+
 	/* doorbell */
 	.irq_thread	= cnl_ipc_irq_thread,
 

sound/soc/sof/intel/icl.c

@@ -41,6 +41,10 @@ const struct snd_sof_dsp_ops sof_icl_ops = {
 	.block_read	= sof_block_read,
 	.block_write	= sof_block_write,
 
+	/* Mailbox IO */
+	.mailbox_read	= sof_mailbox_read,
+	.mailbox_write	= sof_mailbox_write,
+
 	/* doorbell */
 	.irq_thread	= cnl_ipc_irq_thread,
 

sound/soc/sof/intel/pci-tng.c

@@ -142,6 +142,10 @@ const struct snd_sof_dsp_ops sof_tng_ops = {
 	.block_read	= sof_block_read,
 	.block_write	= sof_block_write,
 
+	/* Mailbox IO */
+	.mailbox_read	= sof_mailbox_read,
+	.mailbox_write	= sof_mailbox_write,
+
 	/* doorbell */
 	.irq_handler	= atom_irq_handler,
 	.irq_thread	= atom_irq_thread,
@@ -152,8 +156,8 @@ const struct snd_sof_dsp_ops sof_tng_ops = {
 	.get_mailbox_offset = atom_get_mailbox_offset,
 	.get_window_offset = atom_get_window_offset,
 
-	.ipc_msg_data	= intel_ipc_msg_data,
-	.ipc_pcm_params	= intel_ipc_pcm_params,
+	.ipc_msg_data	= sof_ipc_msg_data,
+	.ipc_pcm_params	= sof_ipc_pcm_params,
 
 	/* machine driver */
 	.machine_select = atom_machine_select,
@@ -168,8 +172,8 @@ const struct snd_sof_dsp_ops sof_tng_ops = {
 	.debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem,
 
 	/* stream callbacks */
-	.pcm_open	= intel_pcm_open,
-	.pcm_close	= intel_pcm_close,
+	.pcm_open	= sof_stream_pcm_open,
+	.pcm_close	= sof_stream_pcm_close,
 
 	/* module loading */
 	.load_module	= snd_sof_parse_module_memcpy,

sound/soc/sof/intel/tgl.c

@@ -37,6 +37,10 @@ const struct snd_sof_dsp_ops sof_tgl_ops = {
 	.block_read	= sof_block_read,
 	.block_write	= sof_block_write,
 
+	/* Mailbox IO */
+	.mailbox_read	= sof_mailbox_read,
+	.mailbox_write	= sof_mailbox_write,
+
 	/* doorbell */
 	.irq_thread	= cnl_ipc_irq_thread,
 

sound/soc/sof/ipc.c

@@ -545,8 +545,10 @@ static void ipc_period_elapsed(struct snd_sof_dev *sdev, u32 msg_id)
 
 	memcpy(&stream->posn, &posn, sizeof(posn));
 
-	/* only inform ALSA for period_wakeup mode */
-	if (!stream->substream->runtime->no_period_wakeup)
+	if (spcm->pcm.compress)
+		snd_sof_compr_fragment_elapsed(stream->cstream);
+	else if (!stream->substream->runtime->no_period_wakeup)
+		/* only inform ALSA for period_wakeup mode */
 		snd_sof_pcm_period_elapsed(stream->substream);
 }
 

sound/soc/sof/ops.h

@@ -312,6 +312,21 @@ static inline int snd_sof_dsp_block_write(struct snd_sof_dev *sdev,
 	return sof_ops(sdev)->block_write(sdev, blk_type, offset, src, bytes);
 }
 
+/* mailbox IO */
+static inline void snd_sof_dsp_mailbox_read(struct snd_sof_dev *sdev,
+					    u32 offset, void *dest, size_t bytes)
+{
+	if (sof_ops(sdev)->mailbox_read)
+		sof_ops(sdev)->mailbox_read(sdev, offset, dest, bytes);
+}
+
+static inline void snd_sof_dsp_mailbox_write(struct snd_sof_dev *sdev,
+					     u32 offset, void *src, size_t bytes)
+{
+	if (sof_ops(sdev)->mailbox_write)
+		sof_ops(sdev)->mailbox_write(sdev, offset, src, bytes);
+}
+
 /* ipc */
 static inline int snd_sof_dsp_send_msg(struct snd_sof_dev *sdev,
 				       struct snd_sof_ipc_msg *msg)

sound/soc/sof/pcm.c

@@ -57,7 +57,7 @@ static int sof_pcm_dsp_params(struct snd_sof_pcm *spcm, struct snd_pcm_substream
 /*
  * sof pcm period elapse work
  */
-void snd_sof_pcm_period_elapsed_work(struct work_struct *work)
+static void snd_sof_pcm_period_elapsed_work(struct work_struct *work)
 {
 	struct snd_sof_pcm_stream *sps =
 		container_of(work, struct snd_sof_pcm_stream,
@@ -66,6 +66,11 @@ void snd_sof_pcm_period_elapsed_work(struct work_struct *work)
 	snd_pcm_period_elapsed(sps->substream);
 }
 
+void snd_sof_pcm_init_elapsed_work(struct work_struct *work)
+{
+	 INIT_WORK(work, snd_sof_pcm_period_elapsed_work);
+}
+
 /*
  * sof pcm period elapse, this could be called at irq thread context.
  */

sound/soc/sof/sof-audio.h

@@ -36,6 +36,7 @@ struct snd_sof_pcm_stream {
 	struct snd_dma_buffer page_table;
 	struct sof_ipc_stream_posn posn;
 	struct snd_pcm_substream *substream;
+	struct snd_compr_stream *cstream;
 	struct work_struct period_elapsed_work;
 	struct snd_soc_dapm_widget_list *list; /* list of connected DAPM widgets */
 	bool d0i3_compatible; /* DSP can be in D0I3 when this pcm is opened */
@@ -231,7 +232,15 @@ struct snd_sof_pcm *snd_sof_find_spcm_pcm_id(struct snd_soc_component *scomp,
 const struct sof_ipc_pipe_new *snd_sof_pipeline_find(struct snd_sof_dev *sdev,
 						     int pipeline_id);
 void snd_sof_pcm_period_elapsed(struct snd_pcm_substream *substream);
-void snd_sof_pcm_period_elapsed_work(struct work_struct *work);
+void snd_sof_pcm_init_elapsed_work(struct work_struct *work);
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_COMPRESS)
+void snd_sof_compr_fragment_elapsed(struct snd_compr_stream *cstream);
+void snd_sof_compr_init_elapsed_work(struct work_struct *work);
+#else
+static inline void snd_sof_compr_fragment_elapsed(struct snd_compr_stream *cstream) { }
+static inline void snd_sof_compr_init_elapsed_work(struct work_struct *work) { }
+#endif
 
 /*
  * Mixer IPC

sound/soc/sof/sof-priv.h

@@ -154,6 +154,14 @@ struct snd_sof_dsp_ops {
 			   enum snd_sof_fw_blk_type type, u32 offset,
 			   void *src, size_t size); /* mandatory */
 
+	/* Mailbox IO */
+	void (*mailbox_read)(struct snd_sof_dev *sof_dev,
+			     u32 offset, void *dest,
+			     size_t size); /* optional */
+	void (*mailbox_write)(struct snd_sof_dev *sof_dev,
+			      u32 offset, void *src,
+			      size_t size); /* optional */
+
 	/* doorbell */
 	irqreturn_t (*irq_handler)(int irq, void *context); /* optional */
 	irqreturn_t (*irq_thread)(int irq, void *context); /* optional */
@@ -592,17 +600,17 @@ int sof_block_read(struct snd_sof_dev *sdev, enum snd_sof_fw_blk_type blk_type,
 
 int sof_fw_ready(struct snd_sof_dev *sdev, u32 msg_id);
 
-int intel_ipc_msg_data(struct snd_sof_dev *sdev,
+int sof_ipc_msg_data(struct snd_sof_dev *sdev,
+		     struct snd_pcm_substream *substream,
+		     void *p, size_t sz);
+int sof_ipc_pcm_params(struct snd_sof_dev *sdev,
 		       struct snd_pcm_substream *substream,
-		       void *p, size_t sz);
-int intel_ipc_pcm_params(struct snd_sof_dev *sdev,
-			 struct snd_pcm_substream *substream,
-			 const struct sof_ipc_pcm_params_reply *reply);
-
-int intel_pcm_open(struct snd_sof_dev *sdev,
-		   struct snd_pcm_substream *substream);
-int intel_pcm_close(struct snd_sof_dev *sdev,
-		    struct snd_pcm_substream *substream);
+		       const struct sof_ipc_pcm_params_reply *reply);
+
+int sof_stream_pcm_open(struct snd_sof_dev *sdev,
+			struct snd_pcm_substream *substream);
+int sof_stream_pcm_close(struct snd_sof_dev *sdev,
+			 struct snd_pcm_substream *substream);
 
 int sof_machine_check(struct snd_sof_dev *sdev);
 #endif

sound/soc/sof/intel/intel-ipc.c → sound/soc/sof/stream-ipc.c

@@ -7,7 +7,7 @@
 //
 // Authors: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
 
-/* Intel-specific SOF IPC code */
+/* Generic SOF IPC code */
 
 #include <linux/device.h>
 #include <linux/export.h>
@@ -17,39 +17,39 @@
 #include <sound/pcm.h>
 #include <sound/sof/stream.h>
 
-#include "../ops.h"
-#include "../sof-priv.h"
+#include "ops.h"
+#include "sof-priv.h"
 
-struct intel_stream {
+struct sof_stream {
 	size_t posn_offset;
 };
 
-/* Mailbox-based Intel IPC implementation */
-int intel_ipc_msg_data(struct snd_sof_dev *sdev,
-		       struct snd_pcm_substream *substream,
-		       void *p, size_t sz)
+/* Mailbox-based Generic IPC implementation */
+int sof_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);
+		snd_sof_dsp_mailbox_read(sdev, sdev->dsp_box.offset, p, sz);
 	} else {
-		struct intel_stream *stream = substream->runtime->private_data;
+		struct sof_stream *stream = substream->runtime->private_data;
 
 		/* The stream might already be closed */
 		if (!stream)
 			return -ESTRPIPE;
 
-		sof_mailbox_read(sdev, stream->posn_offset, p, sz);
+		snd_sof_dsp_mailbox_read(sdev, stream->posn_offset, p, sz);
 	}
 
 	return 0;
 }
-EXPORT_SYMBOL_NS(intel_ipc_msg_data, SND_SOC_SOF_INTEL_HIFI_EP_IPC);
+EXPORT_SYMBOL(sof_ipc_msg_data);
 
-int intel_ipc_pcm_params(struct snd_sof_dev *sdev,
-			 struct snd_pcm_substream *substream,
-			 const struct sof_ipc_pcm_params_reply *reply)
+int sof_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;
+	struct sof_stream *stream = substream->runtime->private_data;
 	size_t posn_offset = reply->posn_offset;
 
 	/* check if offset is overflow or it is not aligned */
@@ -64,12 +64,12 @@ int intel_ipc_pcm_params(struct snd_sof_dev *sdev,
 
 	return 0;
 }
-EXPORT_SYMBOL_NS(intel_ipc_pcm_params, SND_SOC_SOF_INTEL_HIFI_EP_IPC);
+EXPORT_SYMBOL(sof_ipc_pcm_params);
 
-int intel_pcm_open(struct snd_sof_dev *sdev,
-		   struct snd_pcm_substream *substream)
+int sof_stream_pcm_open(struct snd_sof_dev *sdev,
+			struct snd_pcm_substream *substream)
 {
-	struct intel_stream *stream = kmalloc(sizeof(*stream), GFP_KERNEL);
+	struct sof_stream *stream = kmalloc(sizeof(*stream), GFP_KERNEL);
 
 	if (!stream)
 		return -ENOMEM;
@@ -86,18 +86,18 @@ int intel_pcm_open(struct snd_sof_dev *sdev,
 
 	return 0;
 }
-EXPORT_SYMBOL_NS(intel_pcm_open, SND_SOC_SOF_INTEL_HIFI_EP_IPC);
+EXPORT_SYMBOL(sof_stream_pcm_open);
 
-int intel_pcm_close(struct snd_sof_dev *sdev,
-		    struct snd_pcm_substream *substream)
+int sof_stream_pcm_close(struct snd_sof_dev *sdev,
+			 struct snd_pcm_substream *substream)
 {
-	struct intel_stream *stream = substream->runtime->private_data;
+	struct sof_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);
+EXPORT_SYMBOL(sof_stream_pcm_close);
 
 MODULE_LICENSE("Dual BSD/GPL");

sound/soc/sof/topology.c

@@ -2601,8 +2601,10 @@ static int sof_dai_load(struct snd_soc_component *scomp, int index,
 
 	for_each_pcm_streams(stream) {
 		spcm->stream[stream].comp_id = COMP_ID_UNASSIGNED;
-		INIT_WORK(&spcm->stream[stream].period_elapsed_work,
-			  snd_sof_pcm_period_elapsed_work);
+		if (pcm->compress)
+			snd_sof_compr_init_elapsed_work(&spcm->stream[stream].period_elapsed_work);
+		else
+			snd_sof_pcm_init_elapsed_work(&spcm->stream[stream].period_elapsed_work);
 	}
 
 	spcm->pcm = *pcm;