Changeset 953bc1ef in mainline for uspace

Timestamp:

2010-04-29T08:34:29Z (16 years ago)

Author:

Lenka Trochtova <trochtova.lenka@…>

Branches:

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

Children:

cfe7716

Parents:

5af21c5

Message:

introduced an 'interrupt_enable' syscall as a temporary solution for enabling/disabling interrupts

Location:

uspace

Files:

• app/trace/syscalls.c (modified) (1 diff)
• lib/libc/generic/ddi.c (modified) (1 diff)
• lib/libc/include/ddi.h (modified) (1 diff)

uspace/app/trace/syscalls.c

@@ -74 +74 @@
     [SYS_IOSPACE_ENABLE] = { "iospace_enable",          1,      V_ERRNO },
     [SYS_PREEMPT_CONTROL] = { "preempt_control",        1,      V_ERRNO },
+        [SYS_INTERRUPT_ENABLE] = { "interrupt_enable",  2,      V_ERRNO },
 
     [SYS_SYSINFO_VALID] = { "sysinfo_valid",            2,      V_HASH },

uspace/lib/libc/generic/ddi.c

@@ -105 +105 @@
 }
 
+/** Enable/disable interrupt.
+ * 
+ * @param irq the interrupt.
+ * @param enable 1 - enable interrupt, 0 - disable interrupt.
+ * 
+ * @return Zero on success, negative error code otherwise. 
+ */
+int interrupt_enable(int irq, int enable) 
+{
+        return __SYSCALL2(SYS_INTERRUPT_ENABLE, (sysarg_t) irq, (sysarg_t) enable);
+}
+
 /** Enable PIO for specified I/O range.
  *

uspace/lib/libc/include/ddi.h

@@ -43 +43 @@
 extern int preemption_control(int);
 extern int pio_enable(void *, size_t, void **);
+extern int interrupt_enable(int, int);
 
 #endif