Changeset 65fb232 in mainline for genarch/src/ofw/ofw.c

Timestamp:

2005-12-30T22:38:23Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

6ccb238

Parents:

80bff342

Message:

sparc64 work.
kconsole support.
Add non-blocking ofw_getchar().

File:

• genarch/src/ofw/ofw.c (modified) (3 diffs)

genarch/src/ofw/ofw.c

@@ -36 +36 @@
 
 phandle ofw_chosen;
+ihandle ofw_stdin;
 ihandle ofw_stdout;
 
@@ -44 +45 @@
                 ofw_done();
         
+        if (ofw_get_property(ofw_chosen, "stdin",  &ofw_stdin, sizeof(ofw_stdin)) <= 0)
+                ofw_stdin = 0;
+                
         if (ofw_get_property(ofw_chosen, "stdout",  &ofw_stdout, sizeof(ofw_stdout)) <= 0)
-                ofw_stdout = 0;
+                ofw_stdout = 0; 
 }
 
@@ -85 +89 @@
 }
 
+/** Read character from OFW's input.
+ *
+ * This call is non-blocking.
+ *
+ * @return 0 if no character was read, character read otherwise.
+ */
+char ofw_getchar(void)
+{
+        char ch;
+
+        if (ofw_stdin == 0)
+                return 0;
+        
+        if (ofw_call("read", 3, 1, ofw_stdin, &ch, 1) == 1)
+                return ch;
+        else
+                return 0;
+}
+
 phandle ofw_find_device(const char *name)
 {