forked from Imagelibrary/rtems
2008-09-30 Ralf Corsepius <ralf.corsepius@rtems.org>
* clockdrv_shell.c: Empty file. Add warning to not use this file. * clock_driver_simidle.c: include clockdrv_shell.h.
This commit is contained in:
@@ -1,3 +1,8 @@
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2008-09-30 Ralf Corsepius <ralf.corsepius@rtems.org>
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* clockdrv_shell.c: Empty file. Add warning to not use this file.
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* clock_driver_simidle.c: include clockdrv_shell.h.
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2008-09-30 Ralf Corsepius <ralf.corsepius@rtems.org>
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* clockdrv_shell.h: New (Copied from clockdrv_shell.c).
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@@ -28,7 +28,7 @@ volatile bool clock_driver_enabled;
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clock_driver_enabled = false; \
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} while (0)
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#include "clockdrv_shell.c"
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#include "clockdrv_shell.h"
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/*
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* Since there is no interrupt on this simulator, let's just
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@@ -11,219 +11,6 @@
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* $Id$
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*/
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#include <stdlib.h>
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#warning "Including obsolete file clockdrv_shell.c; include clockdrv_shell.h, instead"
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#include <bsp.h>
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#if defined(CLOCK_DRIVER_USE_FAST_IDLE) && defined(CLOCK_DRIVER_ISRS_PER_TICK)
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#error "clockdrv_shell.c: fast idle and N ISRs per tick is not supported"
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#endif
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/*
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* This method is rarely used so default it.
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*/
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#ifndef Clock_driver_support_find_timer
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#define Clock_driver_support_find_timer()
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#endif
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/*
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* ISRs until next clock tick
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*/
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#ifdef CLOCK_DRIVER_ISRS_PER_TICK
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volatile uint32_t Clock_driver_isrs;
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#endif
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/*
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* Clock ticks since initialization
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*/
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volatile uint32_t Clock_driver_ticks;
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/*
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* ISR formerly installed.
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*/
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rtems_isr_entry Old_ticker;
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void Clock_exit( void );
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/*
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* Major and minor number.
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*/
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rtems_device_major_number rtems_clock_major = UINT32_MAX;
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rtems_device_minor_number rtems_clock_minor;
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/*
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* Clock_isr
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*
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* This is the clock tick interrupt handler.
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*
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* Input parameters:
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* vector - vector number
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*
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* Output parameters: NONE
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*
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* Return values: NONE
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*
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*/
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rtems_isr Clock_isr(
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rtems_vector_number vector
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)
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{
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/*
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* Accurate count of ISRs
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*/
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Clock_driver_ticks += 1;
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#ifdef CLOCK_DRIVER_USE_FAST_IDLE
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do {
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rtems_clock_tick();
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} while ( _Thread_Executing == _Thread_Idle &&
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_Thread_Heir == _Thread_Executing);
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Clock_driver_support_at_tick();
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return;
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#else
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/*
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* Do the hardware specific per-tick action.
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*
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* The counter/timer may or may not be set to automatically reload.
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*/
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Clock_driver_support_at_tick();
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#ifdef CLOCK_DRIVER_ISRS_PER_TICK
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/*
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* The driver is multiple ISRs per clock tick.
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*/
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if ( !Clock_driver_isrs ) {
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rtems_clock_tick();
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Clock_driver_isrs = CLOCK_DRIVER_ISRS_PER_TICK;
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}
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Clock_driver_isrs--;
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#else
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/*
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* The driver is one ISR per clock tick.
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*/
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rtems_clock_tick();
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#endif
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#endif
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}
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/*
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* Install_clock
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*
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* This routine actually performs the hardware initialization for the clock.
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*
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* Input parameters:
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* clock_isr - clock interrupt service routine entry point
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*
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* Output parameters: NONE
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*
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* Return values: NONE
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*
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*/
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static void Install_clock(
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rtems_isr_entry clock_isr
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)
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{
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Clock_driver_ticks = 0;
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/*
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* Find timer -- some BSPs search buses for hardware timer
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*/
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Clock_driver_support_find_timer();
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/*
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* Install vector
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*/
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Clock_driver_support_install_isr( clock_isr, Old_ticker );
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#if defined(Clock_driver_nanoseconds_since_last_tick)
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rtems_clock_set_nanoseconds_extension(
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Clock_driver_nanoseconds_since_last_tick
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);
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#endif
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/*
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* Now initialize the hardware that is the source of the tick ISR.
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*/
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Clock_driver_support_initialize_hardware();
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atexit( Clock_exit );
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}
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/*
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* Clock_exit
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*
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* This routine allows the clock driver to exit by masking the interrupt and
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* disabling the clock's counter.
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*
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* Input parameters: NONE
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*
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* Output parameters: NONE
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*
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* Return values: NONE
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*
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*/
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void Clock_exit( void )
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{
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Clock_driver_support_shutdown_hardware();
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/* do not restore old vector */
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}
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/*
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* Clock_initialize
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*
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* This routine initializes the clock driver.
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*
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* Input parameters:
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* major - clock device major number
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* minor - clock device minor number
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* parg - pointer to optional device driver arguments
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*
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* Output parameters: NONE
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*
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* Return values:
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* rtems_device_driver status code
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*/
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rtems_device_driver Clock_initialize(
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rtems_device_major_number major,
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rtems_device_minor_number minor,
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void *pargp
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)
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{
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Install_clock( Clock_isr );
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/*
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* make major/minor avail to others such as shared memory driver
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*/
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rtems_clock_major = major;
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rtems_clock_minor = minor;
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/*
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* If we are counting ISRs per tick, then initialize the counter.
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*/
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#ifdef CLOCK_DRIVER_ISRS_PER_TICK
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Clock_driver_isrs = CLOCK_DRIVER_ISRS_PER_TICK;
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#endif
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return RTEMS_SUCCESSFUL;
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}
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#include "clockdrv_shell.h"
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