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bus_managers/fdt: rewrite to support device manager node tree

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* Breaks previous fdt module clients.

Change-Id: I8bfdca40a77c041ddef51488e1995e5d43edb340
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3977
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: Alex von Gluck IV <[email protected]>
This commit is contained in:
X512
2021-08-14 23:57:35 +00:00
committed by Alex von Gluck IV
parent 961c0ecef4
commit f850bba8d0
8 changed files with 494 additions and 792 deletions
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headers/os/drivers/bus/FDT.h
+17 -31
View File
@@ -1,45 +1,31 @@
/*
* Copyright 2014, Ithamar R. Adema <[email protected]>
* All rights reserved. Distributed under the terms of the MIT License.
* Copyright 2020-2021, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _DRIVERS_BUS_FDT_H
#define _DRIVERS_BUS_FDT_H
#include <bus_manager.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <device_manager.h>
typedef int fdt_device_node;
struct fdt_device_info {
const char *compatible;
status_t (*init)(struct fdt_module_info *fdt, fdt_device_node node, void *cookie);
struct fdt_bus;
struct fdt_device;
struct fdt_bus_module_info {
driver_module_info info;
device_node* (*node_by_phandle)(fdt_bus* bus, int phandle);
};
struct fdt_module_info {
bus_manager_info binfo;
// basic call for triggering callbacks for supported devices
// scans the whole FDT tree once and calls the info.init function
// when a matching device is found.
status_t (*setup_devices)(struct fdt_device_info *info, int count, void *cookie);
// map physical "reg" range "index" of node "node", and return the virtual address in '*_address'
// and return the area ID or error if not able to.
area_id (*map_reg_range)(fdt_device_node node, int index, void **_address);
// return entry "index" out of "interrupts" property for node "node", or a negative error code on failure.
int (*get_interrupt)(fdt_device_node node, int index);
struct fdt_device_module_info{
driver_module_info info;
device_node* (*get_bus)(fdt_device* dev);
const char* (*get_name)(fdt_device* dev);
const void* (*get_prop)(fdt_device* dev, const char* name, int* len);
bool (*get_reg)(fdt_device* dev, uint32 ord, uint64* regs, uint64* len);
bool (*get_interrupt)(fdt_device* dev, uint32 ord,
device_node** interruptController, uint64* interrupt);
};
#define B_FDT_MODULE_NAME "bus_managers/fdt/v1"
#ifdef __cplusplus
}
#endif
#endif // _DRIVERS_BUS_FDT_H