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backends/kms: Implement privacy screen handling and setting

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Privacy screen events on connector are handled as notification events
that won't cause any monitors reconfiguration but will emit monitors
changed on DBus, so that the new value can be fetched.

We monitor the hardware state so that we can also handle the case of
devices with hw-switchers only.

In case a software state is available it means we can also support
changing the state, and if so expose the state as unlocked.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1952>
This commit is contained in:
Marco Trevisan (Treviño)
2021-03-22 01:27:39 +01:00
committed by Marge Bot
parent 4b0a10c562
commit 47d7bc7a13
12 changed files with 302 additions and 3 deletions
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48
src/backends/native/meta-output-kms.c
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@ -29,6 +29,7 @@
#include <string.h>
#include "backends/meta-crtc.h"
#include "backends/native/meta-kms.h"
#include "backends/native/meta-kms-connector.h"
#include "backends/native/meta-kms-device.h"
#include "backends/native/meta-kms-mode.h"
@ -96,6 +97,47 @@ meta_output_kms_set_underscan (MetaOutputKms *output_kms,
}
}
static MetaPrivacyScreenState
meta_output_kms_get_privacy_screen_state (MetaOutput *output)
{
MetaOutputKms *output_kms = META_OUTPUT_KMS (output);
const MetaKmsConnectorState *connector_state;
connector_state =
meta_kms_connector_get_current_state (output_kms->kms_connector);
return connector_state->privacy_screen_state;
}
static gboolean
meta_output_kms_set_privacy_screen_enabled (MetaOutput *output,
gboolean enabled,
GError **error)
{
MetaGpu *gpu;
MetaKms *kms;
MetaKmsDevice *kms_device;
MetaKmsUpdate *kms_update;
MetaOutputKms *output_kms = META_OUTPUT_KMS (output);
MetaKmsConnector *connector = meta_output_kms_get_kms_connector (output_kms);
if (!meta_kms_connector_is_privacy_screen_supported (connector))
{
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
"No privacy screen support");
return FALSE;
}
gpu = meta_output_get_gpu (META_OUTPUT (output_kms));
kms_device = meta_gpu_kms_get_kms_device (META_GPU_KMS (gpu));
kms = meta_kms_device_get_kms (kms_device);
kms_update = meta_kms_ensure_pending_update (kms, kms_device);
meta_kms_update_set_privacy_screen (kms_update, connector, enabled);
return TRUE;
}
uint32_t
meta_output_kms_get_connector_id (MetaOutputKms *output_kms)
{
@ -425,6 +467,12 @@ static void
meta_output_kms_class_init (MetaOutputKmsClass *klass)
{
MetaOutputNativeClass *output_native_class = META_OUTPUT_NATIVE_CLASS (klass);
MetaOutputClass *output_class = META_OUTPUT_CLASS (klass);
output_class->get_privacy_screen_state =
meta_output_kms_get_privacy_screen_state;
output_class->set_privacy_screen_enabled =
meta_output_kms_set_privacy_screen_enabled;
output_native_class->read_edid = meta_output_kms_read_edid;
}