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2008-08-18 Allan Hessenflow <allanh@kallisti.com>

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* shared/clock/clockdrv.c, shared/clock/rtc.c, shared/clock/tod.h,
	shared/console/console.c, shared/timer/timer.c: Removed.
This commit is contained in:
Joel Sherrill
2008-08-18 21:51:37 +00:00
parent c8b1ab96c8
commit c553a23338
6 changed files with 5 additions and 643 deletions
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c/src/lib/libbsp/bfin/ChangeLog
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2008-08-18 Allan Hessenflow <allanh@kallisti.com>
* shared/clock/clockdrv.c, shared/clock/rtc.c, shared/clock/tod.h,
shared/console/console.c, shared/timer/timer.c: Removed.
2008-08-18 Ralf Corsépius <ralf.corsepius@rtems.org>
* shared/clock/tod.h: Add missing prototypes.
c/src/lib/libbsp/bfin/shared/clock/clockdrv.c
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/* Clock Driver for eZKit533.
*
* Instantiate the clock driver shell blackfin core timer.
*
* Copyright (c) 2006 by Atos Automacao Industrial Ltda.
* written by Alain Schaefer <alain.schaefer@easc.ch>
* and Antonio Giovanini <antonio@atos.com.br>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <rtems.h>
#include <bsp.h>
#include <rtems/libio.h>
/*
* If defined, speed up the clock ticks while the idle task is running so
* time spent in the idle task is minimized. This significantly reduces
* the wall time required to execute the RTEMS test suites.
*/
/* #define CLOCK_DRIVER_USE_FAST_IDLE */
#define CLOCK_VECTOR 6
#define Clock_driver_support_install_isr( _new, _old ) \
do { \
_old = (rtems_isr_entry) set_vector( _new, CLOCK_VECTOR, 1 ); \
} while(0)
#define Clock_driver_support_initialize_hardware() \
*((uint32_t*)TCNTL) = TAUTORLD|TMREN|TMPWR; \
*((uint32_t*)TPERIOD) = CCLK / 1000000 * rtems_configuration_get_microseconds_per_tick(); \
*((uint32_t*)TSCALE) = 0; \
do { \
} while (0)
#define Clock_driver_support_at_tick()
#define Clock_driver_support_shutdown_hardware()
#include "../../../shared/clockdrv_shell.c"
c/src/lib/libbsp/bfin/shared/clock/rtc.c
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/* Real Time Clock Driver for eZKit533.
*
* Copyright (c) 2006 by Atos Automacao Industrial Ltda.
* written by Alain Schaefer <alain.schaefer@easc.ch>
* and Antonio Giovanini <antonio@atos.com.br>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <rtems.h>
#include <bsp.h>
#include "tod.h"
#include <rtems/libio.h>
#include <rtems/score/tod.h>
#include <rtems/rtems/types.h>
#define MSK_DAY 0xFFFE0000
#define MSK_HOUR 0x0001F000
#define MSK_MINUTE 0x00000FC0
#define MSK_SECOND 0x0000003F
#define SHF_DAY 17
#define SHF_HOUR 12
#define SHF_MINUTE 6
#define SHF_SECOND 0
/* The following are inside RTEMS -- we are violating visibility!!!
* Perhaps an API could be defined to get days since 1 Jan.
*/
extern const uint16_t _TOD_Days_to_date[2][13];
/*
* Prototypes and routines used below
*/
int Leap_years_until_now (int year);
void Init_RTC(void)
{
*((uint16_t*)RTC_PREN) = 0x0001; /* Enable Prescaler */
}
rtems_device_driver rtc_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor_arg,
void *arg
)
{
rtems_status_code status;
/*
* Register and initialize the primary RTC's
*/
status = rtems_io_register_name( "/dev/rtc", major, 0 );
if (status != RTEMS_SUCCESSFUL) {
rtems_fatal_error_occurred(status);
}
Init_RTC();
setRealTimeToRTEMS();
return RTEMS_SUCCESSFUL;
}
/*
* Read time from RTEMS' clock manager and set it to RTC
*/
void setRealTimeFromRTEMS (void)
{
rtems_time_of_day time_buffer;
rtems_status_code status;
status = rtems_clock_get( RTEMS_CLOCK_GET_TOD, &time_buffer );
if (status == RTEMS_SUCCESSFUL){
setRealTime(&time_buffer);
}
}
/*
* Read real time from RTC and set it to RTEMS' clock manager
*/
void setRealTimeToRTEMS (void)
{
rtems_time_of_day time_buffer;
getRealTime(&time_buffer);
rtems_clock_set( &time_buffer );
}
/*
* Set the RTC time
*/
int setRealTime(
rtems_time_of_day *tod
)
{
uint32_t days;
rtems_time_of_day tod_temp;
tod_temp = *tod;
days = (tod_temp.year - TOD_BASE_YEAR) * 365 + \
_TOD_Days_to_date[0][tod_temp.month] + tod_temp.day - 1;
if (tod_temp.month < 3)
days += Leap_years_until_now (tod_temp.year - 1);
else
days += Leap_years_until_now (tod_temp.year);
*((uint32_t*)RTC_STAT) = (days << SHF_DAY)|
(tod_temp.hour << SHF_HOUR)|
(tod_temp.minute << SHF_MINUTE)|
tod_temp.second;
return 0;
}
/*
* Get the time from the RTC.
*/
void getRealTime(
rtems_time_of_day *tod
)
{
uint32_t days, rtc_reg;
rtems_time_of_day tod_temp;
int n, Leap_year;
rtc_reg = *((uint32_t*)RTC_STAT);
days = (rtc_reg >> SHF_DAY) + 1;
/* finding year */
tod_temp.year = days/365 + TOD_BASE_YEAR;
if (days%365 > Leap_years_until_now (tod_temp.year - 1)) {
days = (days%365) - Leap_years_until_now (tod_temp.year - 1);
} else {
tod_temp.year--;
days = (days%365) + 365 - Leap_years_until_now (tod_temp.year - 1);
}
/* finding month and day */
Leap_year = (((!(tod_temp.year%4)) && (tod_temp.year%100)) ||
(!(tod_temp.year%400)))?1:0;
for (n=1; n<=12; n++) {
if (days <= _TOD_Days_to_date[Leap_year][n+1]) {
tod_temp.month = n;
tod_temp.day = days - _TOD_Days_to_date[Leap_year][n];
break;
}
}
tod_temp.hour = (rtc_reg & MSK_HOUR) >> SHF_HOUR;
tod_temp.minute = (rtc_reg & MSK_MINUTE) >> SHF_MINUTE;
tod_temp.second = (rtc_reg & MSK_SECOND);
tod_temp.ticks = 0;
*tod = tod_temp;
}
/*
* Return the difference between RTC and RTEMS' clock manager time in minutes.
* If the difference is greater than 1 day, this returns 9999.
*/
int checkRealTime (void)
{
rtems_time_of_day rtems_tod;
rtems_time_of_day rtc_tod;
uint32_t rtems_time;
uint32_t rtc_time;
rtems_clock_get( RTEMS_CLOCK_GET_TOD, &rtems_tod );
getRealTime ( &rtc_tod );
rtems_time = _TOD_To_seconds( &rtems_tod );
rtc_time = _TOD_To_seconds( &rtc_tod );
return rtems_time - rtc_time;
}
int Leap_years_until_now (int year)
{
return ((year/4 - year/100 + year/400) -
((TOD_BASE_YEAR - 1)/4 - (TOD_BASE_YEAR - 1)/100 +
(TOD_BASE_YEAR - 1)/400));
}
c/src/lib/libbsp/bfin/shared/clock/tod.h
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/* tod.h
*
* Real Time Clock definitions for eZKit533.
*
* Copyright (c) 2006 by Atos Automacao Industrial Ltda.
* written by Alain Schaefer <alain.schaefer@easc.ch>
* and Antonio Giovanini <antonio@atos.com.br>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifndef TOD_H
#define TOD_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* Set the RTC.
*/
int setRealTime(
rtems_time_of_day *tod
);
/*
* Get the time from the RTC.
*/
void getRealTime(
rtems_time_of_day *tod
);
/*
* Read real time from RTC and set it to RTEMS' clock manager
*/
void setRealTimeToRTEMS(void);
/*
* Read time from RTEMS' clock manager and set it to RTC
*/
void setRealTimeFromRTEMS(void);
/*
* Return the difference between RTC and RTEMS' clock manager time in minutes.
* If the difference is greater than 1 day, this returns 9999.
*/
int checkRealTime(void);
#ifdef __cplusplus
}
#endif
#endif
c/src/lib/libbsp/bfin/shared/console/console.c
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/* Console Driver for eZKit533
*
* Copyright (c) 2006 by Atos Automacao Industrial Ltda.
* written by Alain Schaefer <alain.schaefer@easc.ch>
* and Antonio Giovanini <antonio@atos.com.br>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <bsp.h>
#include <rtems/libio.h>
#include <stdlib.h>
#include <assert.h>
/*
* console_outbyte_polled
*
* This routine transmits a character using polling.
*/
void console_outbyte_polled(int port, char ch);
/* body is in console-io.c */
/*
* console_inbyte_nonblocking
*
* This routine polls for a character.
*/
int console_inbyte_nonblocking( int port );
/* body is in console-io.c */
/*
*
* This routine initialize uart hardware
*/
void console_initialize_hardware(void);
/* body is in console-io.c */
/*
* Interrupt driven console IO
*/
#if (CONSOLE_USE_INTERRUPTS)
/*
* Buffers between task and ISRs
*/
#include <rtems/ringbuf.h>
void *console_termios_data[ 1 ];
/*
* console_initialize_interrupts
*
* This routine initializes the console's receive and transmit
* ring buffers and loads the appropriate vectors to handle the interrupts.
*
* Input parameters: NONE
*
* Output parameters: NONE
*
* Return values: NONE
*/
void console_initialize_interrupts( void );
/* body is in console-io.c */
/*
* console_outbyte_interrupt
*
* This routine transmits a character out.
*
* Input parameters:
* port - port to transmit character to
* ch - character to be transmitted
*
* Output parameters: NONE
*
* Return values: NONE
*/
void console_outbyte_interrupt(int port, char ch);
#endif /* CONSOLE_USE_INTERRUPTS */
/*
* Console Termios Support Entry Points
*
*/
int console_write_support (int minor, const char *buf, int len)
{
int nwrite = 0;
while (nwrite < len) {
#if (CONSOLE_USE_INTERRUPTS)
console_outbyte_interrupt( minor, *buf++ );
#else
console_outbyte_polled( minor, *buf++ );
#endif
nwrite++;
}
return nwrite;
}
/*
* Console Device Driver Entry Points
*
*/
rtems_device_driver console_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
void *arg
)
{
rtems_status_code status;
rtems_termios_initialize();
/*
* Register Device Names
*/
status = rtems_io_register_name( "/dev/console", major, 0 );
if (status != RTEMS_SUCCESSFUL)
rtems_fatal_error_occurred(status);
/*
* Initialize Hardware
*/
#if (CONSOLE_USE_INTERRUPTS)
console_initialize_interrupts();
#endif
console_initialize_hardware();
return RTEMS_SUCCESSFUL;
}
rtems_device_driver console_open(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
rtems_status_code sc;
#if (CONSOLE_USE_INTERRUPTS)
rtems_libio_open_close_args_t *args = arg;
static const rtems_termios_callbacks intrCallbacks = {
NULL, /* firstOpen */
NULL, /* lastClose */
NULL, /* pollRead */
console_write_support, /* write */
NULL, /* setAttributes */
NULL, /* stopRemoteTx */
NULL, /* startRemoteTx */
0 /* outputUsesInterrupts */
};
#else
static const rtems_termios_callbacks pollCallbacks = {
NULL, /* firstOpen */
NULL, /* lastClose */
console_inbyte_nonblocking, /* pollRead */
console_write_support, /* write */
NULL, /* setAttributes */
NULL, /* stopRemoteTx */
NULL, /* startRemoteTx */
0 /* outputUsesInterrupts */
};
#endif
assert( minor <= 1 );
if ( minor > 2 )
return RTEMS_INVALID_NUMBER;
#if (CONSOLE_USE_INTERRUPTS)
sc = rtems_termios_open (major, minor, arg, &intrCallbacks);
console_termios_data[ minor ] = args->iop->data1;
#else
sc = rtems_termios_open (major, minor, arg, &pollCallbacks);
#endif
return RTEMS_SUCCESSFUL;
}
rtems_device_driver console_close(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_close (arg);
}
rtems_device_driver console_read(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_read (arg);
}
rtems_device_driver console_write(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_write (arg);
}
rtems_device_driver console_control(
rtems_device_major_number major,
rtems_device_minor_number minor,
void * arg
)
{
return rtems_termios_ioctl (arg);
}
c/src/lib/libbsp/bfin/shared/timer/timer.c
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/* bspstart.c for eZKit533
*
* This file manages the benchmark timer used by the RTEMS Timing Test
* Suite. Each measured time period is demarcated by calls to
* Timer_initialize() and Read_timer(). Read_timer() usually returns
* the number of microseconds since Timer_initialize() exitted.
*
* Copyright (c) 2006 by Atos Automacao Industrial Ltda.
* written by Alain Schaefer <alain.schaefer@easc.ch>
* and Antonio Giovanini <antonio@atos.com.br>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <rtems.h>
#include <bsp.h>
uint32_t Timer_interrupts;
rtems_boolean Timer_driver_Find_average_overhead;
/*
* Timer_initialize
*
* Blackfin processor has a counter for clock cycles.
*/
void Timer_initialize( void )
{
/*reset counters*/
asm ("R2 = 0;");
asm ("CYCLES = R2;");
asm ("CYCLES2 = R2;");
/*start counters*/
asm ("R2 = SYSCFG;");
asm ("BITSET(R2,1);");
asm ("SYSCFG = R2");
}
/*
* The following controls the behavior of Read_timer().
*
* AVG_OVEREHAD is the overhead for starting and stopping the timer. It
* is usually deducted from the number returned.
*
* LEAST_VALID is the lowest number this routine should trust. Numbers
* below this are "noise" and zero is returned.
*/
#define AVG_OVERHEAD 0 /* It typically takes X.X microseconds */
/* (Y countdowns) to start/stop the timer. */
/* This value is in microseconds. */
#define LEAST_VALID 1 /* Don't trust a clicks value lower than this */
int Read_timer( void )
{
uint32_t clicks;
uint32_t total;
register uint32_t cycles asm ("R2");
/* stop counter */
asm("R2 = SYSCFG;");
asm("BITCLR(R2,1);");
asm("SYSCFG = R2;");
asm("R2 = CYCLES;");
clicks = cycles; /* Clock cycles */
/* converting to microseconds */
total = clicks / (CCLK/1000000);
if ( Timer_driver_Find_average_overhead == 1 )
return total; /* in XXX microsecond units */
else {
if ( total < LEAST_VALID )
return 0; /* below timer resolution */
/*
* Somehow convert total into microseconds
*/
return (total - AVG_OVERHEAD);
}
}
/*
* Empty function call used in loops to measure basic cost of looping
* in Timing Test Suite.
*/
rtems_status_code Empty_function( void )
{
return RTEMS_SUCCESSFUL;
}
void Set_find_average_overhead(
rtems_boolean find_flag
)
{
Timer_driver_Find_average_overhead = find_flag;
}