#ifndef _DTC_H #define _DTC_H /* * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005. * * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA */ #include <stdio.h> #include <string.h> #include <stdlib.h> #include <stdint.h> #include <stdarg.h> #include <assert.h> #include <ctype.h> #include <errno.h> #include <unistd.h> #include <libfdt_env.h> #include <fdt.h> #define DEFAULT_FDT_VERSION 17 /* * Command line options */ extern int quiet; /* Level of quietness */ extern int reservenum; /* Number of memory reservation slots */ extern int minsize; /* Minimum blob size */ extern int padsize; /* Additional padding to blob */ static inline void __attribute__((noreturn)) die(char * str, ...) { va_list ap; va_start(ap, str); fprintf(stderr, "FATAL ERROR: "); vfprintf(stderr, str, ap); exit(1); } static inline void *xmalloc(size_t len) { void *new = malloc(len); if (! new) die("malloc() failed\n"); return new; } static inline void *xrealloc(void *p, size_t len) { void *new = realloc(p, len); if (! new) die("realloc() failed (len=%d)\n", len); return new; } typedef uint32_t cell_t; #define streq(a, b) (strcmp((a), (b)) == 0) #define strneq(a, b, n) (strncmp((a), (b), (n)) == 0) #define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) /* Data blobs */ enum markertype { REF_PHANDLE, REF_PATH, LABEL, }; struct marker { enum markertype type; int offset; char *ref; struct marker *next; }; struct data { int len; char *val; struct marker *markers; }; #define empty_data ((struct data){ /* all .members = 0 or NULL */ }) #define for_each_marker(m) \ for (; (m); (m) = (m)->next) #define for_each_marker_of_type(m, t) \ for_each_marker(m) \ if ((m)->type == (t)) void data_free(struct data d); struct data data_grow_for(struct data d, int xlen); struct data data_copy_mem(const char *mem, int len); struct data data_copy_escape_string(const char *s, int len); struct data data_copy_file(FILE *f, size_t len); struct data data_append_data(struct data d, const void *p, int len); struct data data_insert_at_marker(struct data d, struct marker *m, const void *p, int len); struct data data_merge(struct data d1, struct data d2); struct data data_append_cell(struct data d, cell_t word); struct data data_append_re(struct data d, const struct fdt_reserve_entry *re); struct data data_append_addr(struct data d, uint64_t addr); struct data data_append_byte(struct data d, uint8_t byte); struct data data_append_zeroes(struct data d, int len); struct data data_append_align(struct data d, int align); struct data data_add_marker(struct data d, enum markertype type, char *ref); int data_is_one_string(struct data d); /* DT constraints */ #define MAX_PROPNAME_LEN 31 #define MAX_NODENAME_LEN 31 /* Live trees */ struct property { char *name; struct data val; struct property *next; char *label; }; struct node { char *name; struct property *proplist; struct node *children; struct node *parent; struct node *next_sibling; char *fullpath; int basenamelen; cell_t phandle; int addr_cells, size_cells; char *label; }; #define for_each_property(n, p) \ for ((p) = (n)->proplist; (p); (p) = (p)->next) #define for_each_child(n, c) \ for ((c) = (n)->children; (c); (c) = (c)->next_sibling) struct property *build_property(char *name, struct data val, char *label); struct property *chain_property(struct property *first, struct property *list); struct property *reverse_properties(struct property *first); struct node *build_node(struct property *proplist, struct node *children); struct node *name_node(struct node *node, char *name, char *label); struct node *chain_node(struct node *first, struct node *list); void add_property(struct node *node, struct property *prop); void add_child(struct node *parent, struct node *child); const char *get_unitname(struct node *node); struct property *get_property(struct node *node, const char *propname); cell_t propval_cell(struct property *prop); struct node *get_subnode(struct node *node, const char *nodename); struct node *get_node_by_path(struct node *tree, const char *path); struct node *get_node_by_label(struct node *tree, const char *label); struct node *get_node_by_phandle(struct node *tree, cell_t phandle); struct node *get_node_by_ref(struct node *tree, const char *ref); cell_t get_node_phandle(struct node *root, struct node *node); /* Boot info (tree plus memreserve information */ struct reserve_info { struct fdt_reserve_entry re; struct reserve_info *next; char *label; }; struct reserve_info *build_reserve_entry(uint64_t start, uint64_t len, char *label); struct reserve_info *chain_reserve_entry(struct reserve_info *first, struct reserve_info *list); struct reserve_info *add_reserve_entry(struct reserve_info *list, struct reserve_info *new); struct boot_info { struct reserve_info *reservelist; struct node *dt; /* the device tree */ uint32_t boot_cpuid_phys; }; struct boot_info *build_boot_info(struct reserve_info *reservelist, struct node *tree, uint32_t boot_cpuid_phys); /* Checks */ void process_checks(int force, struct boot_info *bi); /* Flattened trees */ void dt_to_blob(FILE *f, struct boot_info *bi, int version); void dt_to_asm(FILE *f, struct boot_info *bi, int version); struct boot_info *dt_from_blob(const char *fname); /* Tree source */ void dt_to_source(FILE *f, struct boot_info *bi); struct boot_info *dt_from_source(const char *f); /* FS trees */ struct boot_info *dt_from_fs(const char *dirname); /* misc */ char *join_path(const char *path, const char *name); #endif /* _DTC_H */