1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/gpu/drm/apple/dcp.h b/drivers/gpu/drm/apple/dcp.h
new file mode 100644
index 000000000000..60e9bcfa4714
--- /dev/null
+++ b/drivers/gpu/drm/apple/dcp.h
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/* Copyright 2021 Alyssa Rosenzweig <alyssa@rosenzweig.io> */
+
+#ifndef __APPLE_DCP_H__
+#define __APPLE_DCP_H__
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_fourcc.h>
+
+#include "dcp-internal.h"
+#include "parser.h"
+
+struct apple_crtc {
+	struct drm_crtc base;
+	struct drm_pending_vblank_event *event;
+	bool vsync_disabled;
+
+	/* Reference to the DCP device owning this CRTC */
+	struct platform_device *dcp;
+};
+
+#define to_apple_crtc(x) container_of(x, struct apple_crtc, base)
+
+void dcp_hotplug(struct work_struct *work);
+
+struct apple_connector {
+	struct drm_connector base;
+	bool connected;
+
+	struct platform_device *dcp;
+
+	/* Workqueue for sending hotplug events to the associated device */
+	struct work_struct hotplug_wq;
+};
+
+#define to_apple_connector(x) container_of(x, struct apple_connector, base)
+
+void dcp_poweroff(struct platform_device *pdev);
+void dcp_poweron(struct platform_device *pdev);
+int dcp_crtc_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *state);
+void dcp_link(struct platform_device *pdev, struct apple_crtc *apple,
+	      struct apple_connector *connector);
+int dcp_start(struct platform_device *pdev);
+void dcp_flush(struct drm_crtc *crtc, struct drm_atomic_state *state);
+bool dcp_is_initialized(struct platform_device *pdev);
+void apple_crtc_vblank(struct apple_crtc *apple);
+void dcp_drm_crtc_vblank(struct apple_crtc *crtc);
+int dcp_get_modes(struct drm_connector *connector);
+int dcp_mode_valid(struct drm_connector *connector,
+		   struct drm_display_mode *mode);
+void dcp_set_dimensions(struct apple_dcp *dcp);
+void dcp_send_message(struct apple_dcp *dcp, u8 endpoint, u64 message);
+
+int iomfb_start_rtkit(struct apple_dcp *dcp);
+void iomfb_shutdown(struct apple_dcp *dcp);
+/* rtkit message handler for IOMFB messages */
+void iomfb_recv_msg(struct apple_dcp *dcp, u64 message);
+
+#endif