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  • kernel/generic/include/sysinfo/sysinfo.h

    rd99c1d2 re1b6742  
    3939#include <str.h>
    4040
     41/** Framebuffer info exported flags */
    4142extern bool fb_exported;
    4243
    43 typedef union sysinfo_item_val {
    44         unative_t val;
    45         void *fn;
     44/** Item value type
     45 *
     46 */
     47typedef enum {
     48        SYSINFO_VAL_UNDEFINED = 0,     /**< Undefined value */
     49        SYSINFO_VAL_VAL = 1,           /**< Constant numeric value */
     50        SYSINFO_VAL_DATA = 2,          /**< Constant binary data */
     51        SYSINFO_VAL_FUNCTION_VAL = 3,  /**< Generated numeric value */
     52        SYSINFO_VAL_FUNCTION_DATA = 4  /**< Generated binary data */
     53} sysinfo_item_val_type_t;
     54
     55/** Subtree type
     56 *
     57 */
     58typedef enum {
     59        SYSINFO_SUBTREE_NONE = 0,     /**< No subtree (leaf item) */
     60        SYSINFO_SUBTREE_TABLE = 1,    /**< Fixed subtree */
     61        SYSINFO_SUBTREE_FUNCTION = 2  /**< Generated subtree */
     62} sysinfo_subtree_type_t;
     63
     64struct sysinfo_item;
     65
     66/** Gerated numeric value function */
     67typedef unative_t (*sysinfo_fn_val_t)(struct sysinfo_item *);
     68
     69/** Generated binary data function */
     70typedef void *(*sysinfo_fn_data_t)(struct sysinfo_item *, size_t *, bool);
     71
     72/** Sysinfo item binary data
     73 *
     74 */
     75typedef struct {
     76        void *data;   /**< Data */
     77        size_t size;  /**< Size (bytes) */
     78} sysinfo_data_t;
     79
     80/** Sysinfo item value (union)
     81 *
     82 */
     83typedef union {
     84        unative_t val;              /**< Constant numberic value */
     85        sysinfo_fn_val_t fn_val;    /**< Generated numeric value function */
     86        sysinfo_fn_data_t fn_data;  /**< Generated binary data function */
     87        sysinfo_data_t data;        /**< Constant binary data */
    4688} sysinfo_item_val_t;
    4789
     90/** Sysinfo return holder
     91 *
     92 * This structure is generated from the constant
     93 * items or by the generating functions. Note that
     94 * the validity of the data is limited by the scope
     95 * of single sysinfo invocation guarded by sysinfo_lock.
     96 *
     97 */
     98typedef struct {
     99        sysinfo_item_val_type_t tag;  /**< Return value type */
     100        union {
     101                unative_t val;            /**< Numberic value */
     102                sysinfo_data_t data;      /**< Binary data */
     103        };
     104} sysinfo_return_t;
     105
     106/** Generated subtree function */
     107typedef sysinfo_return_t (*sysinfo_fn_subtree_t)(const char *, bool);
     108
     109/** Sysinfo subtree (union)
     110 *
     111 */
     112typedef union {
     113        struct sysinfo_item *table;     /**< Fixed subtree (list of subitems) */
     114        sysinfo_fn_subtree_t get_data;  /**< Generated subtree function */
     115} sysinfo_subtree_t;
     116
     117/** Sysinfo item
     118 *
     119 */
    48120typedef struct sysinfo_item {
    49         char *name;
    50         union {
    51                 unative_t val;
    52                 void *fn;
    53         } val;
    54 
    55         union {
    56                 struct sysinfo_item *table;
    57                 void *fn;
    58         } subinfo;
    59 
    60         struct sysinfo_item *next;
    61         int val_type;
    62         int subinfo_type;
     121        char *name;                           /**< Item name */
     122       
     123        sysinfo_item_val_type_t val_type;     /**< Item value type */
     124        sysinfo_item_val_t val;               /**< Item value */
     125       
     126        sysinfo_subtree_type_t subtree_type;  /**< Subtree type */
     127        sysinfo_subtree_t subtree;            /**< Subtree */
     128       
     129        struct sysinfo_item *next;            /**< Sibling item */
    63130} sysinfo_item_t;
    64131
    65 #define SYSINFO_VAL_VAL        0
    66 #define SYSINFO_VAL_FUNCTION   1
    67 #define SYSINFO_VAL_UNDEFINED  U_SPECIAL
     132extern void sysinfo_set_item_val(const char *, sysinfo_item_t **, unative_t);
     133extern void sysinfo_set_item_data(const char *, sysinfo_item_t **, void *,
     134    size_t);
     135extern void sysinfo_set_item_fn_val(const char *, sysinfo_item_t **,
     136    sysinfo_fn_val_t);
     137extern void sysinfo_set_item_fn_data(const char *, sysinfo_item_t **,
     138    sysinfo_fn_data_t);
     139extern void sysinfo_set_item_undefined(const char *, sysinfo_item_t **);
    68140
    69 #define SYSINFO_SUBINFO_NONE      0
    70 #define SYSINFO_SUBINFO_TABLE     1
    71 #define SYSINFO_SUBINFO_FUNCTION  2
     141extern void sysinfo_set_subtree_fn(const char *, sysinfo_item_t **,
     142    sysinfo_fn_subtree_t);
    72143
    73 typedef unative_t (*sysinfo_val_fn_t)(sysinfo_item_t *root);
    74 typedef unative_t (*sysinfo_subinfo_fn_t)(const char *subname);
     144extern void sysinfo_init(void);
     145extern void sysinfo_dump(sysinfo_item_t *);
    75146
    76 typedef struct sysinfo_rettype {
    77         unative_t val;
    78         unative_t valid;
    79 } sysinfo_rettype_t;
    80 
    81 void sysinfo_set_item_val(const char *name, sysinfo_item_t **root, unative_t val);
    82 void sysinfo_dump(sysinfo_item_t **root, int depth);
    83 void sysinfo_set_item_function(const char *name, sysinfo_item_t **root, sysinfo_val_fn_t fn);
    84 void sysinfo_set_item_undefined(const char *name, sysinfo_item_t **root);
    85 
    86 sysinfo_rettype_t sysinfo_get_val(const char *name, sysinfo_item_t **root);
    87 
    88 unative_t sys_sysinfo_valid(unative_t ptr, unative_t len);
    89 unative_t sys_sysinfo_value(unative_t ptr, unative_t len);
     147extern unative_t sys_sysinfo_get_tag(void *, size_t);
     148extern unative_t sys_sysinfo_get_value(void *, size_t, void *);
     149extern unative_t sys_sysinfo_get_data_size(void *, size_t, void *);
     150extern unative_t sys_sysinfo_get_data(void *, size_t, void *, size_t);
    90151
    91152#endif
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