ca971bbfd8
This patch changes the top-level directory layout as a preparatory step for improving the tools for managing 3rd-party source codes. The rationale is described in the issue referenced below. Issue #1082
104 lines
2.4 KiB
C
104 lines
2.4 KiB
C
/*
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* \brief L4Re functions needed by L4Linux
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* \author Stefan Kalkowski
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* \date 2011-03-17
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*/
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/*
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* Copyright (C) 2011-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _L4__IO__IO_H_
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#define _L4__IO__IO_H_
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#include <l4/sys/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum l4io_resource_types_t {
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L4IO_RESOURCE_INVALID = 0,
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L4IO_RESOURCE_IRQ,
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L4IO_RESOURCE_MEM,
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L4IO_RESOURCE_PORT,
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L4IO_RESOURCE_ANY = ~0
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};
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/**
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* Flags for 'l4io_request_iomem'
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*
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* These flags are specified by 'map_dma_mem' in 'arch-arm/mach_setup.c'.
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*/
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enum {
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L4IO_MEM_NONCACHED = 1 << 0,
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L4IO_MEM_EAGER_MAP = 1 << 1
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};
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typedef l4_mword_t l4io_device_handle_t;
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typedef int l4io_resource_handle_t;
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typedef l4_addr_t l4vbus_paddr_t;
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typedef struct {
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int type;
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char name[64];
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unsigned num_resources;
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unsigned flags;
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} l4io_device_t;
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typedef struct {
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l4_uint16_t type;
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l4_uint16_t flags;
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l4_addr_t start;
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l4_addr_t end;
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} l4io_resource_t;
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l4io_device_handle_t l4io_get_root_device(void);
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L4_CV int L4_EXPORT
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l4io_iterate_devices(l4io_device_handle_t *devhandle,
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l4io_device_t *dev, l4io_resource_handle_t *reshandle);
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L4_CV int L4_EXPORT
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l4io_lookup_resource(l4io_device_handle_t devhandle,
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enum l4io_resource_types_t type,
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l4io_resource_handle_t *reshandle,
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l4io_resource_t *res);
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L4_CV long L4_EXPORT
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l4io_request_ioport(unsigned portnum, unsigned len);
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L4_CV long L4_EXPORT
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l4io_request_iomem_region(l4_addr_t phys, l4_addr_t virt,
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unsigned long size, int flags);
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L4_CV long L4_EXPORT
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l4io_search_iomem_region(l4_addr_t phys, l4_addr_t size,
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l4_addr_t *rstart, l4_addr_t *rsize);
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L4_CV long L4_EXPORT
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l4io_request_iomem(l4_addr_t phys, unsigned long size, int flags,
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l4_addr_t *virt);
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L4_CV long L4_EXPORT
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l4io_release_iomem(l4_addr_t virt, unsigned long size);
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L4_CV long L4_EXPORT
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l4io_request_irq(int irqnum, l4_cap_idx_t irqcap);
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L4_CV long L4_EXPORT
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l4io_release_irq(int irqnum, l4_cap_idx_t irq_cap);
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L4_CV int L4_EXPORT
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l4io_has_resource(enum l4io_resource_types_t type,
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l4vbus_paddr_t start, l4vbus_paddr_t end);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _L4__IO__IO_H_ */
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