46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
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/*
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* Copyright 2014, Ithamar R. Adema <ithamar@upgrade-android.com>
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* All rights reserved. Distributed under the terms of the MIT License.
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*/
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#ifndef _DRIVERS_BUS_FDT_H
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#define _DRIVERS_BUS_FDT_H
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#include <bus_manager.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef int fdt_device_node;
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struct fdt_device_info {
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const char *compatible;
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status_t (*init)(struct fdt_module_info *fdt, fdt_device_node node, void *cookie);
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};
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struct fdt_module_info {
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bus_manager_info binfo;
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// basic call for triggering callbacks for supported devices
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// scans the whole FDT tree once and calls the info.init function
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// when a matching device is found.
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status_t (*setup_devices)(struct fdt_device_info *info, int count, void *cookie);
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// map physical "reg" range "index" of node "node", and return the virtual address in '*_address'
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// and return the area ID or error if not able to.
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area_id (*map_reg_range)(fdt_device_node node, int index, void **_address);
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// return entry "index" out of "interrupts" property for node "node", or a negative error code on failure.
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int (*get_interrupt)(fdt_device_node node, int index);
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};
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#define B_FDT_MODULE_NAME "bus_managers/fdt/v1"
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#ifdef __cplusplus
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}
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#endif
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#endif // _DRIVERS_BUS_FDT_H
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