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-rw-r--r--include/display.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/include/display.h b/include/display.h
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+++ b/include/display.h
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+/*
+ * Copyright 2014 Google Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _DISPLAY_H
+#define _DISPLAY_H
+
+struct udevice;
+struct display_timing;
+
+/**
+ * Display uclass platform data for each device
+ *
+ * @source_id: ID for the source of the display data, typically a video
+ * controller
+ * @src_dev: Source device providing the video
+ */
+struct display_plat {
+ int source_id;
+ struct udevice *src_dev;
+};
+
+/**
+ * display_read_timing() - Read timing information from EDID
+ *
+ * @dev: Device to read from
+ * @return 0 if OK, -ve on error
+ */
+int display_read_timing(struct udevice *dev, struct display_timing *timing);
+
+/**
+ * display_port_enable() - Enable a display port device
+ *
+ * @dev: Device to enable
+ * @panel_bpp: Number of bits per pixel for panel
+ * @timing: Display timings
+ * @return 0 if OK, -ve on error
+ */
+int display_enable(struct udevice *dev, int panel_bpp,
+ const struct display_timing *timing);
+
+struct dm_display_ops {
+ /**
+ * read_edid() - Read information from EDID
+ *
+ * @dev: Device to read from
+ * @buf: Buffer to read into (should be EDID_SIZE bytes)
+ * @buf_size: Buffer size (should be EDID_SIZE)
+ * @return number of bytes read, <=0 for error
+ */
+ int (*read_edid)(struct udevice *dev, u8 *buf, int buf_size);
+
+ /**
+ * enable() - Enable the display port device
+ *
+ * @dev: Device to enable
+ * @panel_bpp: Number of bits per pixel for panel
+ * @timing: Display timings
+ * @return 0 if OK, -ve on error
+ */
+ int (*enable)(struct udevice *dev, int panel_bpp,
+ const struct display_timing *timing);
+};
+
+#define display_get_ops(dev) ((struct dm_display_ops *)(dev)->driver->ops)
+
+#endif