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-rw-r--r--sound/soc/sof/intel/hda-loader.c13
-rw-r--r--sound/soc/sof/intel/hda.c120
-rw-r--r--sound/soc/sof/intel/hda.h44
3 files changed, 177 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda-loader.c b/sound/soc/sof/intel/hda-loader.c
index 0633b76dab49..2ae94ea53122 100644
--- a/sound/soc/sof/intel/hda-loader.c
+++ b/sound/soc/sof/intel/hda-loader.c
@@ -399,6 +399,19 @@ int hda_dsp_pre_fw_run(struct snd_sof_dev *sdev)
/* post fw run operations */
int hda_dsp_post_fw_run(struct snd_sof_dev *sdev)
{
+ int ret;
+
+ if (sdev->first_boot) {
+ ret = hda_sdw_startup(sdev);
+ if (ret < 0) {
+ dev_err(sdev->dev,
+ "error: could not startup SoundWire links\n");
+ return ret;
+ }
+ }
+
+ hda_sdw_int_enable(sdev, true);
+
/* re-enable clock gating and power gating */
return hda_dsp_ctrl_clock_power_gating(sdev, true);
}
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index ee1edb53840c..c1fe94800da1 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -18,7 +18,9 @@
#include <sound/hdaudio_ext.h>
#include <sound/hda_register.h>
+#include <linux/acpi.h>
#include <linux/module.h>
+#include <linux/soundwire/sdw_intel.h>
#include <sound/intel-nhlt.h>
#include <sound/sof.h>
#include <sound/sof/xtensa.h>
@@ -34,6 +36,98 @@
#define EXCEPT_MAX_HDR_SIZE 0x400
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)
+
+void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable)
+{
+ sdw_intel_enable_irq(sdev->bar[HDA_DSP_BAR], enable);
+}
+
+static int hda_sdw_acpi_scan(struct snd_sof_dev *sdev)
+{
+ struct sof_intel_hda_dev *hdev;
+ acpi_handle handle;
+ int ret;
+
+ handle = ACPI_HANDLE(sdev->dev);
+
+ /* save ACPI info for the probe step */
+ hdev = sdev->pdata->hw_pdata;
+
+ ret = sdw_intel_acpi_scan(handle, &hdev->info);
+ if (ret < 0) {
+ dev_err(sdev->dev, "%s failed\n", __func__);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int hda_sdw_probe(struct snd_sof_dev *sdev)
+{
+ struct sof_intel_hda_dev *hdev;
+ struct sdw_intel_res res;
+ acpi_handle handle;
+ void *sdw;
+
+ handle = ACPI_HANDLE(sdev->dev);
+
+ hdev = sdev->pdata->hw_pdata;
+
+ memset(&res, 0, sizeof(res));
+
+ res.mmio_base = sdev->bar[HDA_DSP_BAR];
+ res.irq = sdev->ipc_irq;
+ res.handle = hdev->info.handle;
+ res.parent = sdev->dev;
+
+ /*
+ * ops and arg fields are not populated for now,
+ * they will be needed when the DAI callbacks are
+ * provided
+ */
+
+ /* we could filter links here if needed, e.g for quirks */
+ res.count = hdev->info.count;
+ res.link_mask = hdev->info.link_mask;
+
+ sdw = sdw_intel_probe(&res);
+ if (!sdw) {
+ dev_err(sdev->dev, "error: SoundWire probe failed\n");
+ return -EINVAL;
+ }
+
+ /* save context */
+ hdev->sdw = sdw;
+
+ return 0;
+}
+
+int hda_sdw_startup(struct snd_sof_dev *sdev)
+{
+ struct sof_intel_hda_dev *hdev;
+
+ hdev = sdev->pdata->hw_pdata;
+
+ return sdw_intel_startup(hdev->sdw);
+}
+
+static int hda_sdw_exit(struct snd_sof_dev *sdev)
+{
+ struct sof_intel_hda_dev *hdev;
+
+ hdev = sdev->pdata->hw_pdata;
+
+ hda_sdw_int_enable(sdev, false);
+
+ if (hdev->sdw)
+ sdw_intel_exit(hdev->sdw);
+ hdev->sdw = NULL;
+
+ return 0;
+}
+#endif
+
/*
* Debug
*/
@@ -346,9 +440,12 @@ static const char *fixup_tplg_name(struct snd_sof_dev *sdev,
static int hda_init_caps(struct snd_sof_dev *sdev)
{
struct hdac_bus *bus = sof_to_bus(sdev);
+ struct snd_sof_pdata *pdata = sdev->pdata;
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
struct hdac_ext_link *hlink;
#endif
+ struct sof_intel_hda_dev *hdev = pdata->hw_pdata;
+ u32 link_mask;
int ret = 0;
device_disable_async_suspend(bus->dev);
@@ -365,6 +462,27 @@ static int hda_init_caps(struct snd_sof_dev *sdev)
return ret;
}
+ /* scan SoundWire capabilities exposed by DSDT */
+ ret = hda_sdw_acpi_scan(sdev);
+ if (ret < 0) {
+ dev_err(sdev->dev, "error: SoundWire ACPI scan error\n");
+ return ret;
+ }
+
+ link_mask = hdev->info.link_mask;
+ if (!link_mask) {
+ /*
+ * probe/allocated SoundWire resources.
+ * The hardware configuration takes place in hda_sdw_startup
+ * after power rails are enabled.
+ */
+ ret = hda_sdw_probe(sdev);
+ if (ret < 0) {
+ dev_err(sdev->dev, "error: SoundWire probe error\n");
+ return ret;
+ }
+ }
+
#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA)
if (bus->mlcap)
snd_hdac_ext_bus_get_ml_capabilities(bus);
@@ -622,6 +740,8 @@ int hda_dsp_remove(struct snd_sof_dev *sdev)
snd_hdac_ext_bus_device_remove(bus);
#endif
+ hda_sdw_exit(sdev);
+
if (!IS_ERR_OR_NULL(hda->dmic_dev))
platform_device_unregister(hda->dmic_dev);
diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h
index 2a57fc9f3e58..928a3432e9e6 100644
--- a/sound/soc/sof/intel/hda.h
+++ b/sound/soc/sof/intel/hda.h
@@ -11,6 +11,8 @@
#ifndef __SOF_INTEL_HDA_H
#define __SOF_INTEL_HDA_H
+#include <linux/soundwire/sdw.h>
+#include <linux/soundwire/sdw_intel.h>
#include <sound/compress_driver.h>
#include <sound/hda_codec.h>
#include <sound/hdaudio_ext.h>
@@ -436,6 +438,12 @@ struct sof_intel_hda_dev {
/* delayed work to enter D0I3 opportunistically */
struct delayed_work d0i3_work;
+
+ /* ACPI information stored between scan and probe steps */
+ struct sdw_intel_acpi_info info;
+
+ /* sdw context allocated by SoundWire driver */
+ struct sdw_intel_ctx *sdw;
};
static inline struct hdac_bus *sof_to_bus(struct snd_sof_dev *s)
@@ -654,6 +662,42 @@ int hda_dsp_trace_init(struct snd_sof_dev *sdev, u32 *stream_tag);
int hda_dsp_trace_release(struct snd_sof_dev *sdev);
int hda_dsp_trace_trigger(struct snd_sof_dev *sdev, int cmd);
+/*
+ * SoundWire support
+ */
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)
+
+int hda_sdw_startup(struct snd_sof_dev *sdev);
+void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable);
+
+#else
+
+static inline int hda_sdw_acpi_scan(struct snd_sof_dev *sdev)
+{
+ return 0;
+}
+
+static inline int hda_sdw_probe(struct snd_sof_dev *sdev)
+{
+ return 0;
+}
+
+static inline int hda_sdw_startup(struct snd_sof_dev *sdev)
+{
+ return 0;
+}
+
+static inline int hda_sdw_exit(struct snd_sof_dev *sdev)
+{
+ return 0;
+}
+
+static inline void hda_sdw_int_enable(struct snd_sof_dev *sdev, bool enable)
+{
+}
+
+#endif
+
/* common dai driver */
extern struct snd_soc_dai_driver skl_dai[];
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-01 21:29:28 +0000