GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
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+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2012,2015 Stephen Warren
+ */
+
+#ifndef _BCM2835_MSG_H
+#define _BCM2835_MSG_H
+
+/**
+ * bcm2835_power_on_module() - power on an SoC module
+ *
+ * @module: ID of module to power on (BCM2835_MBOX_POWER_DEVID_...)
+ * @return 0 if OK, -EIO on error
+ */
+int bcm2835_power_on_module(u32 module);
+
+/**
+ * bcm2835_get_mmc_clock() - get the frequency of the MMC clock
+ *
+ * @clock_id: ID of clock to get frequency for
+ * @return clock frequency, or -ve on error
+ */
+int bcm2835_get_mmc_clock(u32 clock_id);
+
+/**
+ * bcm2835_get_video_size() - get the current display size
+ *
+ * @widthp: Returns the width in pixels
+ * @heightp: Returns the height in pixels
+ * @return 0 if OK, -ve on error
+ */
+int bcm2835_get_video_size(int *widthp, int *heightp);
+
+/**
+ * bcm2835_set_video_params() - set the video parameters
+ *
+ * @widthp: Video width to request (returns the actual width selected)
+ * @heightp: Video height to request (returns the actual height selected)
+ * @depth_bpp: Requested bit depth
+ * @pixel_order: Pixel order to use (BCM2835_MBOX_PIXEL_ORDER_...)
+ * @alpha_mode: Alpha transparency mode to use (BCM2835_MBOX_ALPHA_MODE_...)
+ * @fb_basep: Returns base address of frame buffer
+ * @fb_sizep: Returns size of frame buffer
+ * @pitchp: Returns number of bytes in each frame buffer line
+ * @return 0 if OK, -ve on error
+ */
+int bcm2835_set_video_params(int *widthp, int *heightp, int depth_bpp,
+			     int pixel_order, int alpha_mode, ulong *fb_basep,
+			     ulong *fb_sizep, int *pitchp);
+
+#endif