idp/clock/ckinit.c: Fix warnings

c/src/lib/libbsp/m68k/idp/clock/ckinit.c

@@ -1,6 +1,4 @@
-/*  Clock_init()
- *
- *
+/*
  *  This is modified by Doug McBride to get it to work for the MC68EC040
  *  IDP board.  The below comments are kept to show that some prior work
  *  was done in the area and the modifications performed was application
@@ -8,11 +6,9 @@
  *
  *  This routine initializes the mc68230 on the MC68EC040 board.
  *  The tick frequency is 40 milliseconds.
- *
- *  Input parameters:  NONE
- *
- *  Output parameters:  NONE
- *
+ */
+
+/*
  *  COPYRIGHT (c) 1989-1999.
  *  On-Line Applications Research Corporation (OAR).
  *
@@ -37,13 +33,6 @@ void Disable_clock(void);
 
 void Clock_exit( void );
 
-/*
- * These are set by clock driver during its init
- */
-
-rtems_device_major_number rtems_clock_major = ~0;
-rtems_device_minor_number rtems_clock_minor;
-
 /*
  *  ISR Handler
  *
@@ -51,27 +40,27 @@ rtems_device_minor_number rtems_clock_minor;
  * ((1ms * 6.5 MHz) / 2^5) = 203.125) where 6.5 MHz is the clock rate of the
  * MC68230, 2^5 is the prescaler factor, and 1ms is the common interrupt
  * interval for the Clock_isr routine.
+ *
  * Therefore, 203 (decimal) is the number to program into the CPRH-L registers
  * of the MC68230 for countdown.  However, I have found that 193 instead of
  * 203 provides greater accuracy -- why?  The crystal should be more accurate
  * than that
  */
-
-rtems_isr Clock_isr(
+static rtems_isr Clock_isr(
   rtems_vector_number vector
 )
 {
   Clock_driver_ticks += 1;
   /* acknowledge interrupt
-  	MC68230_TSR = 1; */
+  MC68230_TSR = 1; */
   MC68230_WRITE (MC68230_TSR, 1);
 
   if ( Clock_isrs == 1 ) {
     rtems_clock_tick();
-	/* Cast to an integer so that 68EC040 IDP which doesn't have an FPU doesn't
-	   have a heart attack -- if you use newlib1.6 or greater and get
-	   libgcc.a for gcc with software floating point support, this is not
-	   a problem */
+    /* Cast to an integer so that 68EC040 IDP which doesn't have an FPU doesn't
+       have a heart attack -- if you use newlib1.6 or greater and get
+       libgcc.a for gcc with software floating point support, this is not
+       a problem */
     Clock_isrs =
       (int)(rtems_configuration_get_microseconds_per_tick() / 1000);
   }
@@ -81,11 +70,11 @@ rtems_isr Clock_isr(
 
 void Disable_clock(void)
 {
-	/* Disable timer */
-	MC68230_WRITE (MC68230_TCR, 0x00);
+    /* Disable timer */
+    MC68230_WRITE (MC68230_TCR, 0x00);
 }
 
-void Install_clock(
+static void Install_clock(
   rtems_isr_entry clock_isr )
 {
   Clock_driver_ticks = 0;
@@ -104,15 +93,15 @@ void Install_clock(
   MC68230_WRITE (MC68230_TIVR, CLOCK_VECTOR);
 
   /* Set CPRH through CPRL to 193 (not 203) decimal for countdown--see ckisr.c
-  	CPRH = 0x00;
-  	CPRM = 0x00;
-  	CPRL = 0xC1; */
+      CPRH = 0x00;
+      CPRM = 0x00;
+      CPRL = 0xC1; */
   MC68230_WRITE (MC68230_CPRH, 0x00);
   MC68230_WRITE (MC68230_CPRM, 0x00);
   MC68230_WRITE (MC68230_CPRL, 0xC1);
 
   /* Enable timer and use it as an external periodic interrupt generator
-  	MC68230_TCR = 0xA1; */
+     MC68230_TCR = 0xA1; */
 /*    led_putnum('a'); * for debugging purposes */
   MC68230_WRITE (MC68230_TCR, 0xA1);
 
@@ -128,8 +117,8 @@ void Clock_exit( void )
   uint8_t         data;
 
   /* disable timer
-  	data = TCR;
-  	TCR = (data & 0xFE); */
+     data = TCR;
+     TCR = (data & 0xFE); */
   MC68230_READ (MC68230_TCR, data);
   MC68230_WRITE (MC68230_TCR, (data & 0xFE));
 
@@ -144,12 +133,5 @@ rtems_device_driver Clock_initialize(
 {
   Install_clock( Clock_isr );
 
-  /*
-   * make major/minor avail to others such as shared memory driver
-   */
-
-  rtems_clock_major = major;
-  rtems_clock_minor = minor;
-
   return RTEMS_SUCCESSFUL;
 }