Changeset 0b99e40 in mainline for ns/ns.c

Timestamp:

2006-05-28T18:22:10Z (19 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

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

Children:

2d1fde3b

Parents:

7f5b37a

Message:

Rough implementation of gettimeofday.
IPC_M_RECV_AS doesn't allow us to specify additional user parametrs. That
doesn't seem to be very configurable :-/

File:

• ns/ns.c (modified) (3 diffs)

ns/ns.c

@@ -41 +41 @@
 #include <libadt/list.h>
 #include <libadt/hash_table.h>
+#include <sysinfo.h>
+#include <ddi.h>
+#include <as.h>
 
 #define NAME    "NS"
@@ -73 +76 @@
 
 int static ping_phone;
+
+static void get_realtime_as(ipc_callid_t callid, ipc_call_t *call)
+{
+        static void *addr = NULL;
+        void *ph_addr;
+
+        if (IPC_GET_ARG3(*call) != (AS_AREA_READ | AS_AREA_CACHEABLE)) {
+                ipc_answer_fast(callid, EPERM, 0, 0);
+                return;
+        }
+        if (!addr) {
+                ph_addr = (void *)sysinfo_value("clock.faddr");
+                if (!ph_addr) {
+                        ipc_answer_fast(callid, ENOENT, 0, 0);
+                        return;
+                }
+                addr = (void *)(200*1024*1024); /* TODO: intelligent freemem space */
+                map_physmem(task_get_id(), ph_addr, addr, 1,
+                            AS_AREA_READ | AS_AREA_CACHEABLE);
+        }
+        ipc_answer_fast(callid, 0, (ipcarg_t)addr, 0);
+}
 
 int main(int argc, char **argv)
@@ -103 +128 @@
 //                              printf("Failed answer: %d\n", retval);
                         continue;
-                        break;
+                case IPC_M_AS_AREA_RECV:
+                        get_realtime_as(callid, &call);
+                        continue;
                 case IPC_M_INTERRUPT:
-//                      printf("GOT INTERRUPT: %c\n", IPC_GET_ARG2(call));
                         break;
                 case IPC_M_PHONE_HUNGUP:
-//                      printf("Phone hung up.\n");
                         retval = 0;
                         break;