ARM: add ISA support code

src/add-ons/kernel/bus_managers/isa/arch/arm/Jamfile

@@ -0,0 +1,12 @@
+SubDir HAIKU_TOP src add-ons kernel bus_managers isa arch arm ;
+
+SubDirHdrs [ FDirName $(SUBDIR) $(DOTDOT) $(DOTDOT) ] ;
+
+UsePrivateHeaders kernel [ FDirName kernel arch arm ] ;
+UsePrivateHeaders [ FDirName kernel boot platform $(TARGET_BOOT_PLATFORM) ] ;
+
+KernelStaticLibrary isa_arch_bus_manager : 
+	isa_dma.c
+	isa_controller.c
+	;
+

src/add-ons/kernel/bus_managers/isa/arch/arm/isa_controller.c

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+/*
+ * Copyright 2007 Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ *
+ * arch-specific config manager
+ *
+ * Authors (in chronological order):
+ *              François Revol ([email protected])
+ */
+
+#include <KernelExport.h>
+#include "ISA.h"
+#include "arch_cpu.h"
+#include "isa_arch.h"
+
+//#define TRACE_ISA
+#ifdef TRACE_ISA
+#       define TRACE(x) dprintf x
+#else
+#       define TRACE(x) ;
+#endif
+
+
+uint8
+arch_isa_read_io_8(int mapped_io_addr)
+{
+	uint8 value = in8(mapped_io_addr);
+
+	TRACE(("isa_read8(%x->%x)\n", mapped_io_addr, value));
+
+	return value;
+}
+
+
+void
+arch_isa_write_io_8(int mapped_io_addr, uint8 value)
+{
+	TRACE(("isa_write8(%x->%x)\n", value, mapped_io_addr));
+
+	out8(value, mapped_io_addr);
+}
+
+
+uint16
+arch_isa_read_io_16(int mapped_io_addr)
+{
+	return in16(mapped_io_addr);
+}
+
+
+void
+arch_isa_write_io_16(int mapped_io_addr, uint16 value)
+{
+	out16(value, mapped_io_addr);
+}
+
+
+uint32
+arch_isa_read_io_32(int mapped_io_addr)
+{
+	return in32(mapped_io_addr);
+}
+
+
+void
+arch_isa_write_io_32(int mapped_io_addr, uint32 value)
+{
+	out32(value, mapped_io_addr);
+}
+
+
+void *
+arch_isa_ram_address(const void *physical_address_in_system_memory)
+{
+	// this is what the BeOS kernel does
+	return (void *)physical_address_in_system_memory;
+}
+
+
+status_t
+arch_isa_init(void)
+{
+	return B_OK;
+}

src/add-ons/kernel/bus_managers/isa/arch/arm/isa_dma.c

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+/*
+ * Copyright 2007 Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ *
+ * arch-specific config manager
+ *
+ * Authors (in chronological order):
+ *              François Revol ([email protected])
+ */
+
+#include <KernelExport.h>
+#include "ISA.h"
+#include "arch_cpu.h"
+#include "isa_arch.h"
+
+
+status_t
+arch_start_isa_dma(long channel, void *buf, long transfer_count,
+	uchar mode, uchar e_mode)
+{
+	// ToDo: implement this?!
+	return B_NOT_ALLOWED;
+}
+
+