Merge tag 'sound-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "The most significant changes at this cycle are the Sound Open Firmware
  support from Intel for the common DSP framework along with its support
  for Intel platforms. It's a door opened to a real "free" firmware (in
  the sense of FOSS), and other parties show interests in it.

  In addition to SOF, we've got a bunch of updates and fixes as usual.
  Some highlights are below.

  ALSA core:
   - Cleanups and fixes in ALSA timer code to cover some races spotted
     by syzkaller
   - Cleanups and fixes in ALSA sequencer code to cover some races,
     again unsurprisingly, spotted by syzkaller
   - Optimize the common page allocation helper with alloc_pages_exact()

  ASoC:
   - Add SOF core support, as well as Intel SOF platform support
   - Generic card driver improvements: support for MCLK/sample rate
     ratio and pin switches
   - A big set of improvements to TLV320AIC32x4 drivers
   - New drivers for Freescale audio mixers, several Intel machines,
     several Mediatek machines, Meson G12A, Spreadtrum compressed audio
     and DMA devices

  HD-audio:
   - A few Realtek codec fixes for reducing pop noises
   - Quirks for Chromebooks
   - Workaround for faulty connection report on AMD/Nvidia HDMI

  Others:
   - A quirk for Focusrite Scarlett Solo USB-audio
   - Add support for MOTU 8pre FireWire
   - 24bit sample format support in aloop
   - GUS patch format support (finally, over a decade) in native emux
     synth code"

* tag 'sound-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (375 commits)
  ASoC: SOF: Fix unused variable warnings
  ALSA: line6: toneport: Fix broken usage of timer for delayed execution
  ALSA: aica: Fix a long-time build breakage
  ALSA: hda/realtek - Support low power consumption for ALC256
  ASoC: stm32: i2s: update pcm hardware constraints
  ASoC: codec: hdac_hdmi: no checking monitor in hw_params
  ASoC: mediatek: mt6358: save PGA for mixer control
  ASoC: mediatek: mt6358: save output volume for mixer controls
  ASoC: mediatek: mt6358: initialize setting when ramping volume
  ASoC: SOF: core: fix undefined nocodec reference
  ASoC: SOF: xtensa: fix undefined references
  ASoC: SOF: Propagate sof_get_ctrl_copy_params() error properly
  ALSA: hdea/realtek - Headset fixup for System76 Gazelle (gaze14)
  ALSA: hda/intel: add CometLake PCI IDs
  ALSA: hda/realtek - Support low power consumption for ALC295
  ASoC: rockchip: Fix an uninitialized variable compile warning
  ASoC: SOF: Fix a compile warning with CONFIG_PCI=n
  ASoC: da7219: Fix a compile warning at CONFIG_COMMON_CLK=n
  ASoC: sound/soc/sof/: fix kconfig dependency warning
  ASoC: stm32: spdifrx: change trace level on iec control
  ...

1 files changed, 94 insertions, 0 deletions

diff --git a/sound/soc/sof/intel/hda-trace.c b/sound/soc/sof/intel/hda-trace.c
new file mode 100644
index 000000000000..33b23bd6a01e
--- /dev/null
+++ b/sound/soc/sof/intel/hda-trace.c
@@ -0,0 +1,94 @@
+// 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) 2018 Intel Corporation. All rights reserved.
+//
+// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
+//	    Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
+//	    Rander Wang <rander.wang@intel.com>
+//          Keyon Jie <yang.jie@linux.intel.com>
+//
+
+/*
+ * Hardware interface for generic Intel audio DSP HDA IP
+ */
+
+#include <sound/hdaudio_ext.h>
+#include "../ops.h"
+#include "hda.h"
+
+static int hda_dsp_trace_prepare(struct snd_sof_dev *sdev)
+{
+	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
+	struct hdac_ext_stream *stream = hda->dtrace_stream;
+	struct hdac_stream *hstream = &stream->hstream;
+	struct snd_dma_buffer *dmab = &sdev->dmatb;
+	int ret;
+
+	hstream->period_bytes = 0;/* initialize period_bytes */
+	hstream->bufsize = sdev->dmatb.bytes;
+
+	ret = hda_dsp_stream_hw_params(sdev, stream, dmab, NULL);
+	if (ret < 0)
+		dev_err(sdev->dev, "error: hdac prepare failed: %x\n", ret);
+
+	return ret;
+}
+
+int hda_dsp_trace_init(struct snd_sof_dev *sdev, u32 *stream_tag)
+{
+	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
+	int ret;
+
+	hda->dtrace_stream = hda_dsp_stream_get(sdev,
+						SNDRV_PCM_STREAM_CAPTURE);
+
+	if (!hda->dtrace_stream) {
+		dev_err(sdev->dev,
+			"error: no available capture stream for DMA trace\n");
+		return -ENODEV;
+	}
+
+	*stream_tag = hda->dtrace_stream->hstream.stream_tag;
+
+	/*
+	 * initialize capture stream, set BDL address and return corresponding
+	 * stream tag which will be sent to the firmware by IPC message.
+	 */
+	ret = hda_dsp_trace_prepare(sdev);
+	if (ret < 0) {
+		dev_err(sdev->dev, "error: hdac trace init failed: %x\n", ret);
+		hda_dsp_stream_put(sdev, SNDRV_PCM_STREAM_CAPTURE, *stream_tag);
+		hda->dtrace_stream = NULL;
+		*stream_tag = 0;
+	}
+
+	return ret;
+}
+
+int hda_dsp_trace_release(struct snd_sof_dev *sdev)
+{
+	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
+	struct hdac_stream *hstream;
+
+	if (hda->dtrace_stream) {
+		hstream = &hda->dtrace_stream->hstream;
+		hda_dsp_stream_put(sdev,
+				   SNDRV_PCM_STREAM_CAPTURE,
+				   hstream->stream_tag);
+		hda->dtrace_stream = NULL;
+		return 0;
+	}
+
+	dev_dbg(sdev->dev, "DMA trace stream is not opened!\n");
+	return -ENODEV;
+}
+
+int hda_dsp_trace_trigger(struct snd_sof_dev *sdev, int cmd)
+{
+	struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
+
+	return hda_dsp_stream_trigger(sdev, hda->dtrace_stream, cmd);
+}