[ramdisk] add cvitek pre-built ramdisk

Change-Id: Ic7d2046a23358129eaf621b5558984a64fa7361d

ramdisk/initramfs/glibc_riscv64/usr/include/linux/adb.h

@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * Definitions for ADB (Apple Desktop Bus) support.
+ */
+#ifndef __ADB_H
+#define __ADB_H
+
+/* ADB commands */
+#define ADB_BUSRESET		0
+#define ADB_FLUSH(id)		(0x01 | ((id) << 4))
+#define ADB_WRITEREG(id, reg)	(0x08 | (reg) | ((id) << 4))
+#define ADB_READREG(id, reg)	(0x0C | (reg) | ((id) << 4))
+
+/* ADB default device IDs (upper 4 bits of ADB command byte) */
+#define ADB_DONGLE	1	/* "software execution control" devices */
+#define ADB_KEYBOARD	2
+#define ADB_MOUSE	3
+#define ADB_TABLET	4
+#define ADB_MODEM	5
+#define ADB_MISC	7	/* maybe a monitor */
+
+#define ADB_RET_OK	0
+#define ADB_RET_TIMEOUT	3
+
+/* The kind of ADB request. The controller may emulate some
+   or all of those CUDA/PMU packet kinds */
+#define ADB_PACKET	0
+#define CUDA_PACKET	1
+#define ERROR_PACKET	2
+#define TIMER_PACKET	3
+#define POWER_PACKET	4
+#define MACIIC_PACKET	5
+#define PMU_PACKET	6
+#define ADB_QUERY	7
+
+/* ADB queries */
+
+/* ADB_QUERY_GETDEVINFO
+ * Query ADB slot for device presence
+ * data[2] = id, rep[0] = orig addr, rep[1] = handler_id
+ */
+#define ADB_QUERY_GETDEVINFO	1
+
+
+#endif /* __ADB_H */