diff options
Diffstat (limited to 'c/src/lib/libcpu/mips/clock/ckinit.c')
| -rw-r--r-- | c/src/lib/libcpu/mips/clock/ckinit.c | 61 |
1 files changed, 15 insertions, 46 deletions
diff --git a/c/src/lib/libcpu/mips/clock/ckinit.c b/c/src/lib/libcpu/mips/clock/ckinit.c index 711b41cd09..315226362e 100644 --- a/c/src/lib/libcpu/mips/clock/ckinit.c +++ b/c/src/lib/libcpu/mips/clock/ckinit.c @@ -1,7 +1,8 @@ -/* ckinit.c - * +/* * This file contains the clock driver initialization for the IDT 4650. - * + */ + +/* * Author: Craig Lebakken <craigl@transition.com> * * COPYRIGHT (c) 1996 by Transition Networks Inc. @@ -30,15 +31,12 @@ /* * Rather than deleting this, it is commented out to (hopefully) help * the submitter send updates. - * - * static char _sccsid[] = "@(#)ckinit.c 08/20/96 1.3\n"; */ - #include <stdlib.h> #include <rtems.h> -#include <rtems/libio.h> +#include <rtems/clockdrv.h> #define EXT_INT5 0x8000 /* external interrupt 5 */ @@ -49,15 +47,10 @@ extern uint32_t bsp_clicks_per_microsecond; /* to avoid including the bsp */ mips_isr_entry set_vector( rtems_isr_entry, rtems_vector_number, int ); -void Clock_exit( void ); -rtems_isr Clock_isr( rtems_vector_number vector ); - - /* * The interrupt vector number associated with the clock tick device * driver. */ - #define CLOCK_VECTOR_MASK EXT_INT5 #define CLOCK_VECTOR 0x7 @@ -65,7 +58,6 @@ rtems_isr Clock_isr( rtems_vector_number vector ); * Clock_driver_ticks is a monotonically increasing counter of the * number of clock ticks since the driver was initialized. */ - volatile uint32_t Clock_driver_ticks; /* @@ -75,42 +67,30 @@ volatile uint32_t Clock_driver_ticks; * length of time between the user configured microseconds per tick * has passed. */ - uint32_t Clock_isrs; /* ISRs until next tick */ /* - * These are set by clock driver during its init - */ - -rtems_device_major_number rtems_clock_major = ~0; -rtems_device_minor_number rtems_clock_minor; - -/* * The previous ISR on this clock tick interrupt vector. */ - rtems_isr_entry Old_ticker; -void Clock_exit( void ); - static uint32_t mips_timer_rate = 0; /* * Isr Handler */ - -rtems_isr Clock_isr( +static rtems_isr Clock_isr( rtems_vector_number vector ) { /* - * bump the number of clock driver ticks since initialization - * - * determine if it is time to announce the passing of tick as configured - * to RTEMS through the rtems_clock_tick directive - * - * perform any timer dependent tasks - */ + * bump the number of clock driver ticks since initialization + * + * determine if it is time to announce the passing of tick as configured + * to RTEMS through the rtems_clock_tick directive + * + * perform any timer dependent tasks + */ /* refresh the internal CPU timer */ mips_set_timer( mips_timer_rate ); @@ -140,8 +120,7 @@ rtems_isr User_Clock_isr( * Install a clock tick handleR and reprograms the chip. This * is used to initially establish the clock tick. */ - -void Install_clock( +static void Install_clock( rtems_isr_entry clock_isr ) { @@ -153,10 +132,10 @@ void Install_clock( Clock_isrs = rtems_configuration_get_milliseconds_per_tick(); Old_ticker = (rtems_isr_entry) set_vector( clock_isr, CLOCK_VECTOR, 1 ); + /* * Hardware specific initialize goes here */ - mips_timer_rate = rtems_configuration_get_microseconds_per_tick() * bsp_clicks_per_microsecond; mips_set_timer( mips_timer_rate ); @@ -165,14 +144,12 @@ void Install_clock( /* * Schedule the clock cleanup routine to execute if the application exits. */ - atexit( Clock_exit ); } /* * Clean up before the application exits */ - void Clock_exit( void ) { /* mips: turn off the timer interrupts */ @@ -184,7 +161,6 @@ void Clock_exit( void ) * * Device driver entry point for clock tick driver initialization. */ - rtems_device_driver Clock_initialize( rtems_device_major_number major, rtems_device_minor_number minor, @@ -193,12 +169,5 @@ 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; } |