Patch from Aleksey (Quality Quorum <qqi@world.std.com>):

    1. Finally fixes raw interrupts for pc386
    2. Makes some minor cleanup in console and startup
    3. Makes rtems_termios_dequeue_characters() to return count of
       outstanding chars - it allows to simplify console isrs a little
       bit.
    4. pc386 uart modified to be friendlier to termios parameter changes,
       to have minor performance improvement and to take advantage of
       of above termios modification.

2 files changed, 14 insertions, 13 deletions

diff --git a/c/src/lib/libbsp/i386/shared/irq/idt.c b/c/src/lib/libbsp/i386/shared/irq/idt.c
index 740516b106..5f44bd0d2b 100644
--- a/c/src/lib/libbsp/i386/shared/irq/idt.c
+++ b/c/src/lib/libbsp/i386/shared/irq/idt.c
@@ -47,13 +47,6 @@ rtems_raw_irq_hdl get_hdl_from_vector(rtems_vector_offset index)
     i386_get_info_from_IDTR (&idt_entry_tbl, &limit);
 	
     /* Convert limit into number of entries */
-    limit = (limit + 1) >> 3;
-
-    if(index >= limit) {
-        return 0;
-    }
-	
-    /* Convert limit into number of entries */
     limit = (limit + 1) / sizeof(interrupt_gate_descriptor);
   
     if(index >= limit) {
@@ -279,7 +272,7 @@ int i386_set_gdt_entry (unsigned short segment_selector, unsigned base,
     gdt_entry_tbl[segment_selector].present 		= 1; 	/* not present */
 
     /*
-    return 1;
+     * Now, reload all segment registers so the limit takes effect.
      */
 
     asm volatile( "movw %%ds,%0 ; movw %0,%%ds
diff --git a/c/src/lib/libbsp/i386/shared/irq/irq_init.c b/c/src/lib/libbsp/i386/shared/irq/irq_init.c
index 4199d30488..ee6967d8d9 100644
--- a/c/src/lib/libbsp/i386/shared/irq/irq_init.c
+++ b/c/src/lib/libbsp/i386/shared/irq/irq_init.c
@@ -116,22 +116,30 @@ void  rtems_irq_mngt_init()
 {
     int 			i;
     interrupt_gate_descriptor* 	idt_entry_tbl;
-    unsigned			limit;
+    unsigned int                limit;
     unsigned int 		level;
 
-    i386_get_info_from_IDTR (&idt_entry_tbl, &limit);
-    /* Convert limit into number of entries */
-    limit = (limit + 1) / sizeof(interrupt_gate_descriptor);    
+    i386_get_info_from_IDTR(&idt_entry_tbl, &limit);
+
+    /* Convert into number of entries */
+    limit = (limit + 1)/sizeof(interrupt_gate_descriptor);
+
+    if(limit != IDT_SIZE) {
+       printk("IDT table size mismatch !!! System locked\n");
+       while(1);
+    }
+    
 
     _CPU_ISR_Disable(level);
 
     /*
      * Init the complete IDT vector table with defaultRawIrq value
      */
-    for (i = 0; i < limit; i++) {
+    for (i = 0; i < IDT_SIZE ; i++) {
       idtHdl[i] 	 = defaultRawIrq;
       idtHdl[i].idtIndex = i;
     }
+
     raw_initial_config.idtSize = IDT_SIZE;
     raw_initial_config.defaultRawEntry = defaultRawIrq;
     raw_initial_config.rawIrqHdlTbl = idtHdl;