Changeset d8a4e79 in mainline

Timestamp:

2012-04-04T20:22:20Z (12 years ago)

Author:

Maurizio Lombardi <m.lombardi85@…>

Branches:

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

Children:

2a4c22d

Parents:

f87ea202

Message:

rtc: Add an option to the default handler to get the status of the clock's battery

Location:

uspace

Files:

• drv/time/cmos-rtc/cmos-regs.h (modified) (1 diff)
• drv/time/cmos-rtc/cmos-rtc.c (modified) (4 diffs)
• lib/c/include/ipc/clock_ctl.h (added)

uspace/drv/time/cmos-rtc/cmos-regs.h

@@ -40 +40 @@
 #define RTC_MASK_BCD    0x04
 
+#define RTC_STATUS_D    0x0D
+#define RTC_BATTERY_OK  0x80
+
 #define RTC_UPDATE      0x0A
 #define RTC_MASK_UPDATE 0x08

uspace/drv/time/cmos-rtc/cmos-rtc.c

@@ -46 +46 @@
 #include <device/hw_res.h>
 #include <devman.h>
+#include <ipc/clock_ctl.h>
 
 #include "cmos-regs.h"
@@ -82 +83 @@
 static int  rtc_register_read(rtc_t *rtc, int reg);
 static int  bcd2dec(int bcd);
+static void rtc_default_handler(ddf_fun_t *fun,
+    ipc_callid_t callid, ipc_call_t *call);
 
 
@@ -114 +117 @@
 
         rtc_dev_ops.interfaces[CLOCK_DEV_IFACE] = &rtc_clock_dev_ops;
-        rtc_dev_ops.default_handler = NULL; /* XXX */
+        rtc_dev_ops.default_handler = &rtc_default_handler;
 }
 
@@ -387 +390 @@
 }
 
+/** Default handler for client requests not handled
+ *  by the standard interface
+ */
+static void
+rtc_default_handler(ddf_fun_t *fun, ipc_callid_t callid, ipc_call_t *call)
+{
+        sysarg_t method = IPC_GET_IMETHOD(*call);
+        rtc_t *rtc = RTC_FROM_FNODE(fun);
+        bool batt_ok;
+
+        switch (method) {
+        case CLOCK_GET_BATTERY_STATUS:
+                batt_ok = !(rtc_register_read(rtc, RTC_STATUS_D) &
+                    RTC_BATTERY_OK);
+                async_answer_1(callid, EOK, batt_ok);
+                break;
+        default:
+                async_answer_0(callid, ENOTSUP);
+        }
+}
+
 /** Open the device
  *