Changeset 6b329749 in mainline

Timestamp:

2012-03-30T13:24:02Z (12 years ago)

Author:

Maurizio Lombardi <m.lombardi85@…>

Branches:

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

Children:

0b8a3e7

Parents:

a31ca11f

Message:

RTC: add a fibril mutex to synchronize the access to the real time clock and
initialize it in the rtc_dev_add function.

File:

• uspace/drv/time/rtc.c (modified) (3 diffs)

uspace/drv/time/rtc.c

@@ -42 +42 @@
 #include <ddf/log.h>
 #include <ops/clock.h>
+#include <fibril_synch.h>
 
 #define NAME "RTC"
@@ -80 +81 @@
         /** DDF function node */
         ddf_fun_t *fun;
+        /** The fibril mutex for synchronizing the access to the device */
+        fibril_mutex_t mutex;
 } rtc_t;
 
@@ -117 +120 @@
 rtc_dev_add(ddf_dev_t *dev)
 {
+        rtc_t *rtc;
+
+        ddf_msg(LVL_DEBUG, "rtc_dev_add %s (handle = %d)",
+            dev->name, (int) dev->handle);
+
+        rtc = ddf_dev_data_alloc(dev, sizeof(rtc_t));
+        if (!rtc)
+                return ENOMEM;
+
+        rtc->dev = dev;
+        fibril_mutex_initialize(&rtc->mutex);
+
         return EOK;
 }