FreeBSD/Linux Kernel Cross Reference
sys/dev/fdt/fdt_common.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2009-2010 The FreeBSD Foundation
      *
      * This software was developed by Semihalf under sponsorship from
      * the FreeBSD Foundation.
      *
      * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    #ifndef _FDT_COMMON_H_
    #define _FDT_COMMON_H_
    
    #include <sys/sysctl.h>
    #include <sys/slicer.h>
    #include <contrib/libfdt/libfdt_env.h>
    #include <dev/ofw/ofw_bus.h>
    
    #define FDT_MEM_REGIONS 16
    
    #define DI_MAX_INTR_NUM 32
    
    struct fdt_sense_level {
            enum intr_trigger       trig;
            enum intr_polarity      pol;
    };
    
    #if defined(__arm__) && !defined(INTRNG)
    typedef int (*fdt_pic_decode_t)(phandle_t, pcell_t *, int *, int *, int *);
    extern fdt_pic_decode_t fdt_pic_table[];
    #endif
    
    #if defined(__arm__) || defined(__powerpc__)
    typedef void (*fdt_fixup_t)(phandle_t);
    struct fdt_fixup_entry {
            char            *model;
            fdt_fixup_t     handler;
    };
    extern struct fdt_fixup_entry fdt_fixup_table[];
    #endif
    
    extern SLIST_HEAD(fdt_ic_list, fdt_ic) fdt_ic_list_head;
    struct fdt_ic {
            SLIST_ENTRY(fdt_ic)     fdt_ics;
            ihandle_t               iph;
            device_t                dev;
    };
    
    extern vm_paddr_t fdt_immr_pa;
    extern vm_offset_t fdt_immr_va;
    extern vm_offset_t fdt_immr_size;
    
    #if defined(FDT_DTB_STATIC)
    extern u_char fdt_static_dtb;
    #endif
    
    SYSCTL_DECL(_hw_fdt);
    
    int fdt_addrsize_cells(phandle_t, int *, int *);
    u_long fdt_data_get(void *, int);
    int fdt_data_to_res(pcell_t *, int, int, u_long *, u_long *);
    phandle_t fdt_find_compatible(phandle_t, const char *, int);
    phandle_t fdt_depth_search_compatible(phandle_t, const char *, int);
    int fdt_get_mem_regions(struct mem_region *, int *, uint64_t *);
    int fdt_get_reserved_mem(struct mem_region *, int *);
    int fdt_get_reserved_regions(struct mem_region *, int *);
    int fdt_get_phyaddr(phandle_t, device_t, int *, void **);
    int fdt_get_range(phandle_t, int, u_long *, u_long *);
    int fdt_immr_addr(vm_offset_t);
    int fdt_regsize(phandle_t, u_long *, u_long *);
    int fdt_is_compatible_strict(phandle_t, const char *);
    int fdt_parent_addr_cells(phandle_t);
    int fdt_get_chosen_bootargs(char *bootargs, size_t max_size);
    
    #endif /* _FDT_COMMON_H_ */

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