[Intel-gfx] [RFC PATCH v2 5/8] drm/i915: Add support for audio driver notifications
Jerome Anand
jerome.anand at intel.com
Sat Oct 1 00:22:39 UTC 2016
Notifiations like mode change, hot plug and edid to
the audio driver are added. This is inturn used by the
audio driver for its functionality.
A new interface file capturing the notifications needed by the
audio driver is added
Signed-off-by: Jerome Anand <jerome.anand at intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 3 +++
drivers/gpu/drm/i915/intel_audio.c | 8 ++++++
drivers/gpu/drm/i915/intel_hdmi.c | 18 ++++++++++++-
drivers/gpu/drm/i915/intel_lpe_audio.c | 49 ++++++++++++++++++++++++++++++++++
include/drm/intel_lpe_audio.h | 1 +
5 files changed, 78 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 399a8ee..51a6d71 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3597,6 +3597,9 @@ int intel_lpe_audio_setup(struct drm_i915_private *dev_priv);
void intel_lpe_audio_teardown(struct drm_i915_private *dev_priv);
void intel_lpe_audio_irq_handler(struct drm_i915_private *dev_priv);
int intel_lpe_audio_detect(struct drm_i915_private *dev_priv);
+void intel_lpe_audio_notify(struct drm_i915_private *dev_priv,
+ void *eld, int port, int tmds_clk_speed,
+ bool connected);
/* intel_i2c.c */
extern int intel_setup_gmbus(struct drm_device *dev);
diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index 9583f43..61a9a98 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -24,6 +24,7 @@
#include <linux/kernel.h>
#include <linux/component.h>
#include <drm/i915_component.h>
+#include <drm/intel_lpe_audio.h>
#include "intel_drv.h"
#include <drm/drmP.h>
@@ -528,6 +529,10 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder)
if (acomp && acomp->audio_ops && acomp->audio_ops->pin_eld_notify)
acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr,
(int) port, (int) pipe);
+
+ if (IS_LPE_AUDIO_ENABLED(dev_priv))
+ intel_lpe_audio_notify(dev_priv, connector->eld, port,
+ crtc->config->port_clock, true);
}
/**
@@ -561,6 +566,9 @@ void intel_audio_codec_disable(struct intel_encoder *intel_encoder)
if (acomp && acomp->audio_ops && acomp->audio_ops->pin_eld_notify)
acomp->audio_ops->pin_eld_notify(acomp->audio_ops->audio_ptr,
(int) port, (int) pipe);
+
+ if (IS_LPE_AUDIO_ENABLED(dev_priv))
+ intel_lpe_audio_notify(dev_priv, NULL, port, 0, true);
}
/**
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 8d46f58..0e20788 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -36,6 +36,7 @@
#include <drm/drm_edid.h>
#include "intel_drv.h"
#include <drm/i915_drm.h>
+#include <drm/intel_lpe_audio.h>
#include "i915_drv.h"
static struct drm_device *intel_hdmi_to_dev(struct intel_hdmi *intel_hdmi)
@@ -1501,9 +1502,24 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
hdmi_to_dig_port(intel_hdmi)->base.type = INTEL_OUTPUT_HDMI;
status = connector_status_connected;
- } else
+
+ i915_enable_hdmi_audio_int(dev_priv);
+
+ if (IS_LPE_AUDIO_ENABLED(dev_priv))
+ intel_lpe_audio_notify(dev_priv,
+ connector->eld, 0,
+ 0, true);
+ } else {
status = connector_status_disconnected;
+ i915_disable_hdmi_audio_int(dev_priv);
+
+ if (IS_LPE_AUDIO_ENABLED(dev_priv))
+ intel_lpe_audio_notify(dev_priv,
+ NULL, 0,
+ 0, false);
+ }
+
intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS);
return status;
diff --git a/drivers/gpu/drm/i915/intel_lpe_audio.c b/drivers/gpu/drm/i915/intel_lpe_audio.c
index acfe22f..28266e4 100644
--- a/drivers/gpu/drm/i915/intel_lpe_audio.c
+++ b/drivers/gpu/drm/i915/intel_lpe_audio.c
@@ -355,3 +355,52 @@ void intel_lpe_audio_teardown(struct drm_i915_private *dev_priv)
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
}
+
+
+/**
+ * intel_lpe_audio_notify() - notify lpe audio event
+ * audio driver and i915
+ * @dev_priv: the i915 drm device private data
+ * @eld : ELD data
+ * @port: port id
+ * @tmds_clk_speed: tmds clock frequency in Hz
+ * @connected: hdmi connected/disconnected
+ *
+ * Notify lpe audio driver of eld change.
+ */
+void intel_lpe_audio_notify(struct drm_i915_private *dev_priv,
+ void *eld, int port, int tmds_clk_speed,
+ bool connected)
+{
+ unsigned long irq_flags;
+
+ if (IS_LPE_AUDIO_ENABLED(dev_priv)) {
+ struct intel_hdmi_lpe_audio_pdata *pdata = dev_get_platdata(
+ &(dev_priv->lpe_audio.platdev->dev));
+
+ if (pdata) {
+ spin_lock_irqsave(&pdata->lpe_audio_slock,
+ irq_flags);
+
+ if (eld != NULL) {
+ memcpy(pdata->eld.eld_data, eld,
+ HDMI_MAX_ELD_BYTES);
+ pdata->eld.port_id = port;
+
+ if (tmds_clk_speed)
+ pdata->tmds_clock_speed =
+ tmds_clk_speed;
+ }
+ pdata->hdmi_connected = connected;
+ if (pdata->notify_audio_lpe)
+ pdata->notify_audio_lpe(
+ (eld != NULL) ? &pdata->eld : NULL);
+ else
+ pdata->notify_pending = true;
+
+ spin_unlock_irqrestore(&pdata->lpe_audio_slock,
+ irq_flags);
+ } else
+ DRM_DEBUG_DRIVER("no audio notification\n");
+ }
+}
diff --git a/include/drm/intel_lpe_audio.h b/include/drm/intel_lpe_audio.h
index a64c449..952de05 100644
--- a/include/drm/intel_lpe_audio.h
+++ b/include/drm/intel_lpe_audio.h
@@ -25,6 +25,7 @@
#define _INTEL_LPE_AUDIO_H_
#include <linux/types.h>
+#include <linux/spinlock_types.h>
#define HDMI_MAX_ELD_BYTES 128
--
2.9.3
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