Changeset 66b430e in mainline for kernel/arch/ia64/src/drivers/ski.c

Timestamp:

2009-05-07T19:52:24Z (15 years ago)

Author:

Jiri Svoboda <jirik.svoboda@…>

Branches:

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

Children:

046f342

Parents:

386e276

Message:

Kernel Ski driver should pull more keys at a time, similarly to the user-space driver.

File:

• kernel/arch/ia64/src/drivers/ski.c (modified) (2 diffs)

kernel/arch/ia64/src/drivers/ski.c

@@ -45 +45 @@
 #include <arch.h>
 
-#define POLL_INTERVAL  10000  /* 10 ms */
-
-#define SKI_INIT_CONSOLE  20
-#define SKI_GETCHAR       21
-#define SKI_PUTCHAR       31
+enum {
+        /** Interval between polling in microseconds */
+        POLL_INTERVAL =  10000,  /* 0.01 s */
+
+        /** Max. number of characters to pull out at a time */
+        POLL_LIMIT    =     30,
+
+        SKI_INIT_CONSOLE  = 20,
+        SKI_GETCHAR       = 21,
+        SKI_PUTCHAR       = 31
+};
 
 static void ski_putchar(outdev_t *, const wchar_t, bool);
@@ -155 +161 @@
 }
 
-/** Ask keyboard if a key was pressed. */
+/** Ask keyboard if a key was pressed.
+ *
+ * If so, it will repeat and pull up to POLL_LIMIT characters.
+ */
 static void poll_keyboard(ski_instance_t *instance)
 {
+        wchar_t ch;
+        int count;
+
         if (kbd_disabled)
                 return;
-        
-        wchar_t ch = ski_getchar();
-        
-        if (ch != 0)
+
+        count = POLL_LIMIT;
+
+        while (count > 0) {
+                ch = ski_getchar();
+
+                if (ch == '\0')
+                        break;
+
                 indev_push_character(instance->srlnin, ch);
+                --count;
+        }
 }