l4re-base-25.08.0

src/l4/pkg/drivers/generic/Makefile

@@ -0,0 +1,8 @@
+PKGDIR		?= ..
+L4DIR		?= $(PKGDIR)/../..
+
+TARGET := include src
+
+include $(L4DIR)/mk/subdir.mk
+
+src: include

src/l4/pkg/drivers/generic/include/Makefile

@@ -0,0 +1,4 @@
+PKGDIR	= ../..
+L4DIR	?= $(PKGDIR)/../..
+
+include $(L4DIR)/mk/include.mk

src/l4/pkg/drivers/generic/include/amba.h

@@ -0,0 +1,22 @@
+/*
+ * (c) 2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>
+ *     economic rights: Technische Universität Dresden (Germany)
+ * This file is part of TUD:OS and distributed under the terms of the
+ * GNU Lesser General Public License 2.1.
+ * Please see the COPYING-LGPL-2.1 file for details.
+ */
+#ifndef __ARM_DRIVERS__GENERIC__INCLUDE__AMBA_H__
+#define __ARM_DRIVERS__GENERIC__INCLUDE__AMBA_H__
+
+#include <sys/cdefs.h>
+#include <l4/sys/compiler.h>
+#include <l4/sys/types.h>
+#include <stdint.h>
+
+L4_BEGIN_DECLS
+
+void amba_read_id(l4_addr_t address, uint32_t *periphid, uint32_t *cellid);
+
+L4_END_DECLS
+
+#endif /* ! __ARM_DRIVERS__LCD__INCLUDE__LCD_H__ */

src/l4/pkg/drivers/generic/src/Makefile

@@ -0,0 +1,8 @@
+PKGDIR		?= ../..
+L4DIR		?= $(PKGDIR)/../..
+
+SRC_CC         := amba.cc
+TARGET		= libarm_generic.a
+PC_FILENAME    := libdrivers-generic
+
+include $(L4DIR)/mk/lib.mk

src/l4/pkg/drivers/generic/src/amba.cc

@@ -0,0 +1,19 @@
+
+#include <l4/drivers/io_regblock.h>
+#include <l4/drivers/amba.h>
+
+
+void amba_read_id(l4_addr_t address, uint32_t *periphid, uint32_t *cellid)
+{
+  L4::Io_register_block_mmio b(address);
+
+  *periphid =   ((b.read32( 0) & 0xff) << 0)
+              | ((b.read32( 4) & 0xff) << 8)
+              | ((b.read32( 8) & 0xff) << 16)
+              | ((b.read32(12) & 0xff) << 24);
+
+  *cellid   =   ((b.read32(16) & 0xff) << 0)
+              | ((b.read32(20) & 0xff) << 8)
+              | ((b.read32(24) & 0xff) << 16)
+              | ((b.read32(28) & 0xff) << 24);
+}