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

source/bootloader/u-boot-2020.01/drivers/video/rockchip/rk_hdmi.h

@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2017 Theobroma Systems Design und Consulting GmbH
+ */
+
+#ifndef __RK_HDMI_H__
+#define __RK_HDMI_H__
+
+struct rkhdmi_driverdata {
+	/* configuration */
+	u8 i2c_clk_high;
+	u8 i2c_clk_low;
+	const char * const *regulator_names;
+	u32 regulator_names_cnt;
+	/* setters/getters */
+	int (*set_input_vop)(struct udevice *dev);
+	int (*clk_config)(struct udevice *dev);
+};
+
+struct rk_hdmi_priv {
+	struct dw_hdmi hdmi;
+	void *grf;
+};
+
+/**
+ * rk_hdmi_read_edid() - read the attached HDMI/DVI monitor's EDID
+ *
+ * N.B.: The buffer should be large enough to hold 2 EDID blocks, as
+ *       this function calls dw_hdmi_read_edid, which ignores buf_size
+ *       argument and assumes that there's always enough space for 2
+ *       EDID blocks.
+ *
+ * @dev:	device
+ * @buf:	output buffer for the EDID
+ * @buf_size:	number of bytes in the buffer
+ * @return number of bytes read if OK, -ve if something went wrong
+ */
+int rk_hdmi_read_edid(struct udevice *dev, u8 *buf, int buf_size);
+
+/**
+ * rk_hdmi_probe_regulators() - probe (autoset + enable) regulators
+ *
+ * Probes a list of regulators by performing autoset and enable
+ * operations on them.  The list of regulators is an array of string
+ * pointers and any individual regulator-probe may fail without
+ * counting as an error.
+ *
+ * @dev:	device
+ * @names:	array of string-pointers to regulator names to probe
+ * @cnt:	number of elements in the 'names' array
+ */
+void rk_hdmi_probe_regulators(struct udevice *dev,
+			      const char * const *names, int cnt);
+/**
+ * rk_hdmi_ofdata_to_platdata() - common ofdata_to_platdata implementation
+ *
+ * @dev:	device
+ * @return 0 if OK, -ve if something went wrong
+ */
+int rk_hdmi_ofdata_to_platdata(struct udevice *dev);
+
+/**
+ * rk_hdmi_probe() - common probe implementation
+ *
+ * Performs the following, common initialisation steps:
+ * 1. checks for HPD (i.e. a HDMI monitor being attached)
+ * 2. initialises the Designware HDMI core
+ * 3. initialises the Designware HDMI PHY
+ *
+ * @dev:	device
+ * @return 0 if OK, -ve if something went wrong
+ */
+int rk_hdmi_probe(struct udevice *dev);
+
+#endif