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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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/* * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005. */
#include <stdio.h>#include <string.h>#include <stdlib.h>#include <stdint.h>#include <stdbool.h>#include <stdarg.h>#include <assert.h>#include <ctype.h>#include <errno.h>#include <unistd.h>#include <inttypes.h>
#include <libfdt_env.h>#include <fdt.h>
#include "util.h"
#ifdef DEBUG#define debug(...) printf(__VA_ARGS__)#else#define debug(...)#endif
#define DEFAULT_FDT_VERSION 17
/* * Command line options */extern int quiet; /* Level of quietness */extern unsigned int reservenum; /* Number of memory reservation slots */extern int minsize; /* Minimum blob size */extern int padsize; /* Additional padding to blob */extern int alignsize; /* Additional padding to blob according to the alignsize */extern int phandle_format; /* Use linux,phandle or phandle properties */extern int generate_symbols; /* generate symbols for nodes with labels */extern int generate_fixups; /* generate fixups */extern int auto_label_aliases; /* auto generate labels -> aliases */extern int annotate; /* annotate .dts with input source location */
#define PHANDLE_LEGACY 0x1#define PHANDLE_EPAPR 0x2#define PHANDLE_BOTH 0x3
typedef uint32_t cell_t;
static inline bool phandle_is_valid(cell_t phandle){ return phandle != 0 && phandle != ~0U;}
static inline uint16_t dtb_ld16(const void *p){ const uint8_t *bp = (const uint8_t *)p;
return ((uint16_t)bp[0] << 8) | bp[1];}
static inline uint32_t dtb_ld32(const void *p){ const uint8_t *bp = (const uint8_t *)p;
return ((uint32_t)bp[0] << 24) | ((uint32_t)bp[1] << 16) | ((uint32_t)bp[2] << 8) | bp[3];}
static inline uint64_t dtb_ld64(const void *p){ const uint8_t *bp = (const uint8_t *)p;
return ((uint64_t)bp[0] << 56) | ((uint64_t)bp[1] << 48) | ((uint64_t)bp[2] << 40) | ((uint64_t)bp[3] << 32) | ((uint64_t)bp[4] << 24) | ((uint64_t)bp[5] << 16) | ((uint64_t)bp[6] << 8) | bp[7];}
#define streq(a, b) (strcmp((a), (b)) == 0)#define strstarts(s, prefix) (strncmp((s), (prefix), strlen(prefix)) == 0)#define strprefixeq(a, n, b) (strlen(b) == (n) && (memcmp(a, b, n) == 0))static inline bool strends(const char *str, const char *suffix){ unsigned int len, suffix_len;
len = strlen(str); suffix_len = strlen(suffix); if (len < suffix_len) return false; return streq(str + len - suffix_len, suffix);}
#define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1))
/* Data blobs */enum markertype { TYPE_NONE, REF_PHANDLE, REF_PATH, LABEL, TYPE_UINT8, TYPE_UINT16, TYPE_UINT32, TYPE_UINT64, TYPE_STRING,};
static inline bool is_type_marker(enum markertype type){ return type >= TYPE_UINT8;}
extern const char *markername(enum markertype markertype);
struct marker { enum markertype type; unsigned int offset; char *ref; struct marker *next;};
struct data { unsigned int len; char *val; struct marker *markers;};
#define empty_data ((struct data){ 0 /* 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))
static inline struct marker *next_type_marker(struct marker *m){ for_each_marker(m) if (is_type_marker(m->type)) break; return m;}
static inline size_t type_marker_length(struct marker *m){ struct marker *next = next_type_marker(m->next);
if (next) return next->offset - m->offset; return 0;}
void data_free(struct data d);
struct data data_grow_for(struct data d, unsigned 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_integer(struct data d, uint64_t word, int bits);struct data data_append_re(struct data d, uint64_t address, uint64_t size);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_insert_data(struct data d, struct marker *m, struct data old);
struct marker *alloc_marker(unsigned int offset, enum markertype type, char *ref);struct data data_add_marker(struct data d, enum markertype type, char *ref);
bool data_is_one_string(struct data d);
/* DT constraints */
#define MAX_PROPNAME_LEN 31#define MAX_NODENAME_LEN 31
/* Live trees */struct label { bool deleted; char *label; struct label *next;};
struct bus_type { const char *name;};
struct property { bool deleted; char *name; struct data val;
struct property *next;
struct label *labels; struct srcpos *srcpos;};
struct node { bool deleted; char *name; struct property *proplist; struct node *children;
struct node *parent; struct node *next_sibling;
char *fullpath; size_t basenamelen;
cell_t phandle; int addr_cells, size_cells;
struct label *labels; const struct bus_type *bus; struct srcpos *srcpos;
bool omit_if_unused, is_referenced;};
#define for_each_label_withdel(l0, l) \ for ((l) = (l0); (l); (l) = (l)->next)
#define for_each_label(l0, l) \ for_each_label_withdel(l0, l) \ if (!(l)->deleted)
#define for_each_property_withdel(n, p) \ for ((p) = (n)->proplist; (p); (p) = (p)->next)
#define for_each_property(n, p) \ for_each_property_withdel(n, p) \ if (!(p)->deleted)
#define for_each_child_withdel(n, c) \ for ((c) = (n)->children; (c); (c) = (c)->next_sibling)
#define for_each_child(n, c) \ for_each_child_withdel(n, c) \ if (!(c)->deleted)
void add_label(struct label **labels, char *label);void delete_labels(struct label **labels);
struct property *build_property(const char *name, struct data val, struct srcpos *srcpos);struct property *build_property_delete(const char *name);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 srcpos *srcpos);struct node *build_node_delete(struct srcpos *srcpos);struct node *name_node(struct node *node, const char *name);struct node *omit_node_if_unused(struct node *node);struct node *reference_node(struct node *node);struct node *chain_node(struct node *first, struct node *list);struct node *merge_nodes(struct node *old_node, struct node *new_node);struct node *add_orphan_node(struct node *old_node, struct node *new_node, char *ref);
void add_property(struct node *node, struct property *prop);void delete_property_by_name(struct node *node, char *name);void delete_property(struct property *prop);void add_child(struct node *parent, struct node *child);void delete_node_by_name(struct node *parent, char *name);void delete_node(struct node *node);void append_to_property(struct node *node, char *name, const void *data, int len, enum markertype type);
const char *get_unitname(struct node *node);struct property *get_property(struct node *node, const char *propname);cell_t propval_cell(struct property *prop);cell_t propval_cell_n(struct property *prop, unsigned int n);struct property *get_property_by_label(struct node *tree, const char *label, struct node **node);struct marker *get_marker_label(struct node *tree, const char *label, struct node **node, 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);
uint32_t guess_boot_cpuid(struct node *tree);
/* Boot info (tree plus memreserve information */
struct reserve_info { uint64_t address, size;
struct reserve_info *next;
struct label *labels;};
struct reserve_info *build_reserve_entry(uint64_t start, uint64_t len);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 dt_info { unsigned int dtsflags; struct reserve_info *reservelist; uint32_t boot_cpuid_phys; struct node *dt; /* the device tree */ const char *outname; /* filename being written to, "-" for stdout */};
/* DTS version flags definitions */#define DTSF_V1 0x0001 /* /dts-v1/ */#define DTSF_PLUGIN 0x0002 /* /plugin/ */
struct dt_info *build_dt_info(unsigned int dtsflags, struct reserve_info *reservelist, struct node *tree, uint32_t boot_cpuid_phys);void sort_tree(struct dt_info *dti);void generate_labels_from_tree(struct dt_info *dti, const char *name);void generate_label_tree(struct dt_info *dti, const char *name, bool allocph);void generate_fixups_tree(struct dt_info *dti, const char *name);void fixup_phandles(struct dt_info *dti, const char *name);void generate_local_fixups_tree(struct dt_info *dti, const char *name);void local_fixup_phandles(struct dt_info *dti, const char *name);
/* Checks */
void parse_checks_option(bool warn, bool error, const char *arg);void process_checks(bool force, struct dt_info *dti);
/* Flattened trees */
void dt_to_blob(FILE *f, struct dt_info *dti, int version);void dt_to_asm(FILE *f, struct dt_info *dti, int version);
struct dt_info *dt_from_blob(const char *fname);
/* Tree source */
void property_add_marker(struct property *prop, enum markertype type, unsigned int offset, char *ref);void add_phandle_marker(struct dt_info *dti, struct property *prop, unsigned int offset);void dt_to_source(FILE *f, struct dt_info *dti);struct dt_info *dt_from_source(const char *f);
/* YAML source */
void dt_to_yaml(FILE *f, struct dt_info *dti);
/* FS trees */
struct dt_info *dt_from_fs(const char *dirname);
#endif /* DTC_H */