qcacmn: Add context parameter to qdf_ini_parse()

In order to avoid global state, add a context parameter to
qdf_ini_parse. This parameter will get passed back to consumers via
the existing callbacks.

Change-Id: Icd74a58815701b4603924838bb84c7956058da6b
CRs-Fixed: 2194517

qdf/inc/qdf_parse.h

@@ -17,7 +17,7 @@
  */
 
 /**
- * DOC: Thin filesystem API abstractions
+ * DOC: Text parsing related abstractions, not related to a specific type
  */
 
 #ifndef __QDF_PARSE_H
@@ -25,15 +25,21 @@
 
 #include "qdf_status.h"
 
+typedef QDF_STATUS (*qdf_ini_section_cb)(void *context, const char *name);
+typedef QDF_STATUS (*qdf_ini_item_cb)(void *context,
+				      const char *key,
+				      const char *value);
+
 /**
- * cfg_ini_parse() - parse an ini file
+ * qdf_ini_parse() - parse an ini file
  * @ini_path: The full file path of the ini file to parse
+ * @context: The caller supplied context to pass into callbacks
  * @item_cb: Ini item (key/value pair) handler callback function
  *	Return QDF_STATUS_SUCCESS to continue parsing, else to abort
  * @section_cb: Ini section header handler callback function
  *	Return QDF_STATUS_SUCCESS to continue parsing, else to abort
  *
- * The *.ini file format is a simple format consiting of a list of key/value
+ * The *.ini file format is a simple format consisting of a list of key/value
  * pairs (items), separated by an '=' character. Comments are initiated with
  * a '#' character. Sections are also supported, using '[' and ']' around the
  * section name. e.g.
@@ -50,9 +56,8 @@
  * Return: QDF_STATUS
  */
 QDF_STATUS
-qdf_ini_parse(const char *ini_path,
-	      QDF_STATUS (*item_cb)(const char *key, const char *value),
-	      QDF_STATUS (*section_cb)(const char *name));
+qdf_ini_parse(const char *ini_path, void *context,
+	      qdf_ini_item_cb item_cb, qdf_ini_section_cb section_cb);
 
 #endif /* __QDF_PARSE_H */
 

qdf/src/qdf_parse.c

@@ -24,10 +24,8 @@
 #include "qdf_trace.h"
 #include "qdf_types.h"
 
-QDF_STATUS
-qdf_ini_parse(const char *ini_path,
-	      QDF_STATUS (*item_cb)(const char *key, const char *value),
-	      QDF_STATUS (*section_cb)(const char *name))
+QDF_STATUS qdf_ini_parse(const char *ini_path, void *context,
+			 qdf_ini_item_cb item_cb, qdf_ini_section_cb section_cb)
 {
 	QDF_STATUS status;
 	char *fbuf;
@@ -98,7 +96,7 @@ qdf_ini_parse(const char *ini_path,
 		 *	3) a line containing whitespace
 		 */
 		if (value) {
-			status = item_cb(key, value);
+			status = item_cb(context, key, value);
 			if (QDF_IS_STATUS_ERROR(status))
 				goto free_fbuf;
 		} else if (key[0] == '[') {
@@ -108,7 +106,7 @@ qdf_ini_parse(const char *ini_path,
 				qdf_err("Invalid *.ini syntax '%s'", key);
 			} else {
 				key[len - 1] = '\0';
-				status = section_cb(key + 1);
+				status = section_cb(context, key + 1);
 				if (QDF_IS_STATUS_ERROR(status))
 					goto free_fbuf;
 			}