Changeset bda60d9 in mainline for uspace/lib/libc/include/ipc/devman.h

Timestamp:

2010-03-19T14:40:14Z (14 years ago)

Author:

Lenka Trochtova <trochtova.lenka@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d347b53

Parents:

7707954

Message:

adding child device - parts of code

File:

• uspace/lib/libc/include/ipc/devman.h (modified) (1 diff)

uspace/lib/libc/include/ipc/devman.h

@@ -34 +34 @@
 #define LIBC_IPC_DEVMAN_H_
 
+#include <adt/list.h>
 #include <ipc/ipc.h>
+#include <stdlib.h>
+#include <string.h>
 
 #define DEVMAN_NAME_MAXLEN 256
+
+typedef ipcarg_t device_handle_t;
+
+/** Ids of device models used for device-to-driver matching.
+ */
+typedef struct match_id {
+        /** Pointers to next and previous ids.
+         */
+        link_t link;
+        /** Id of device model.
+         */
+        const char *id;
+        /** Relevancy of device-to-driver match.
+         * The higher is the product of scores specified for the device by the bus driver and by the leaf driver,
+         * the more suitable is the leaf driver for handling the device.
+         */
+        unsigned int score;
+} match_id_t;
+
+/** List of ids for matching devices to drivers sorted
+ * according to match scores in descending order.
+ */
+typedef struct match_id_list {
+        link_t ids;
+} match_id_list_t;
+
+
+static inline match_id_t * create_match_id()
+{
+        match_id_t *id = malloc(sizeof(match_id_t));
+        memset(id, 0, sizeof(match_id_t));
+        return id;
+}
+
+static inline void delete_match_id(match_id_t *id)
+{
+        if (id) {
+                if (NULL != id->id) {
+                        free(id->id);
+                }
+                free(id);
+        }
+}
+
+static inline void add_match_id(match_id_list_t *ids, match_id_t *id) 
+{
+        match_id_t *mid = NULL;
+        link_t *link = ids->ids.next;   
+        
+        while (link != &ids->ids) {
+                mid = list_get_instance(link, match_id_t,link);
+                if (mid->score < id->score) {
+                        break;
+                }       
+                link = link->next;
+        }
+        
+        list_insert_before(&id->link, link);    
+}
+
+static inline void clean_match_ids(match_id_list_t *ids)
+{
+        link_t *link = NULL;
+        match_id_t *id;
+        
+        while(!list_empty(&ids->ids)) {
+                link = ids->ids.next;
+                list_remove(link);              
+                id = list_get_instance(link, match_id_t, link);
+                delete_match_id(id);            
+        }       
+}
 
 typedef enum {