Ignore:
Timestamp:
Sep 11, 1995, 7:35:39 PM (26 years ago)
Author:
Joel Sherrill <joel.sherrill@…>
Branches:
4.10, 4.11, 4.8, 4.9, 5, master
Children:
ced11f99
Parents:
5072b07
Message:

The word "RTEMS" almost completely removed from the core.

Configuration Table Template file added and all tests
modified to use this. All gvar.h and conftbl.h files
removed from test directories.

Configuration parameter maximum_devices added.

Core semaphore and mutex handlers added and RTEMS API Semaphore
Manager updated to reflect this.

Initialization sequence changed to invoke API specific initialization
routines. Initialization tasks table now owned by RTEMS Tasks Manager.

Added user extension for post-switch.

Utilized user extensions to implement API specific functionality
like signal dispatching.

Added extensions to the System Initialization Thread so that an
API can register a function to be invoked while the system
is being initialized. These are largely equivalent to the
pre-driver and post-driver hooks.

Added the Modules file oar-go32_p5, modified oar-go32, and modified
the file make/custom/go32.cfg to look at an environment varable which
determines what CPU model is being used.

All BSPs updated to reflect named devices and clock driver's IOCTL
used by the Shared Memory Driver. Also merged clock isr into
main file and removed ckisr.c where possible.

Updated spsize to reflect new and moved variables.

Makefiles for the executive source and include files updated to show
break down of files into Core, RTEMS API, and Neither.

Header and inline files installed into subdirectory based on whether
logically in the Core or a part of the RTEMS API.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • c/src/lib/libbsp/m68k/mvme136/clock/ckinit.c

    r5072b07 r3a4ae6c  
    2121#include <stdlib.h>
    2222
    23 #include <rtems.h>
    2423#include <bsp.h>
    25 #include <clockdrv.h>
     24#include <rtems/libio.h>
    2625#include <z8036.h>
    2726
     
    3635                                    /*   and trigger countdown */
    3736
     37#define TIMER        0xfffb0000
     38#define RELOAD       0x24            /* clr IP & IUS,allow countdown */
     39 
     40#define CLOCK_VECTOR 66
     41
    3842rtems_unsigned32 Clock_isrs;        /* ISRs until next tick */
    39 volatile rtems_unsigned32 Clock_driver_ticks;
    40                                     /* ticks since initialization */
     43
     44volatile rtems_unsigned32 Clock_driver_ticks; /* ticks since initialization */
     45
    4146rtems_isr_entry  Old_ticker;
    4247
    43 rtems_device_driver Clock_initialize(
    44   rtems_device_major_number major,
    45   rtems_device_minor_number minor,
    46   void *pargp,
    47   rtems_id tid,
    48   rtems_unsigned32 *rval
     48void Clock_exit( void );
     49
     50/*
     51 * These are set by clock driver during its init
     52 */
     53 
     54rtems_device_major_number rtems_clock_major = ~0;
     55rtems_device_minor_number rtems_clock_minor;
     56 
     57/*
     58 *  ISR Handler
     59 */
     60 
     61rtems_isr Clock_isr(
     62  rtems_vector_number vector
    4963)
    5064{
    51   Install_clock( Clock_isr );
    52 }
     65  Clock_driver_ticks += 1;
     66  ((volatile struct z8036_map *) TIMER)->CT1_CMD_STATUS = RELOAD;
    5367
    54 void ReInstall_clock(
    55   rtems_isr_entry clock_isr
    56 )
    57 {
    58   rtems_unsigned32 isrlevel;
    59 
    60   rtems_interrupt_disable( isrlevel );
    61    (void) set_vector( clock_isr, 66, 1 );
    62   rtems_interrupt_enable( isrlevel );
     68  if ( Clock_isrs == 1 ) {
     69    rtems_clock_tick();
     70    Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000;
     71  }
     72  else
     73    Clock_isrs -= 1;
    6374}
    6475
     
    7384
    7485  if ( BSP_Configuration.ticks_per_timeslice ) {
    75     Old_ticker = (rtems_isr_entry) set_vector( clock_isr, 66, 1 );
     86    Old_ticker = (rtems_isr_entry) set_vector( clock_isr, CLOCK_VECTOR, 1 );
    7687    timer = (struct z8036_map *) 0xfffb0000;
    7788    timer->MASTER_INTR        = MICRVAL;
    7889    timer->CT1_MODE_SPEC      = T1MSRVAL;
    7990
    80   *((rtems_unsigned16 *)0xfffb0016) = MS_COUNT;  /* write countdown value */
    81 /*
    82     timer->CT1_TIME_CONST_MSB = (MS_COUNT >> 8);
    83     timer->CT1_TIME_CONST_LSB = (MS_COUNT &  0xff);
    84 */
     91    *((rtems_unsigned16 *)0xfffb0016) = MS_COUNT;  /* write countdown value */
     92
     93    /*
     94     *  timer->CT1_TIME_CONST_MSB = (MS_COUNT >> 8);
     95     *  timer->CT1_TIME_CONST_LSB = (MS_COUNT &  0xff);
     96     */
     97
    8598    timer->MASTER_CFG         = MCCRVAL;
    8699    timer->CT1_CMD_STATUS     = T1CSRVAL;
    87100
    88 /*
    89  * Enable interrupt via VME interrupt mask register
    90  */
     101    /*
     102     * Enable interrupt via VME interrupt mask register
     103     */
    91104    (*(rtems_unsigned8 *)0xfffb0038) &= 0xfd;
    92 
    93105
    94106    atexit( Clock_exit );
    95107  }
    96108
     109}
     110
     111void ReInstall_clock(
     112  rtems_isr_entry clock_isr
     113)
     114{
     115  rtems_unsigned32 isrlevel;
     116
     117  rtems_interrupt_disable( isrlevel );
     118   (void) set_vector( clock_isr, CLOCK_VECTOR, 1 );
     119  rtems_interrupt_enable( isrlevel );
    97120}
    98121
     
    110133  }
    111134}
     135
     136rtems_device_driver Clock_initialize(
     137  rtems_device_major_number major,
     138  rtems_device_minor_number minor,
     139  void *pargp
     140)
     141{
     142  Install_clock( Clock_isr );
     143
     144  /*
     145   * make major/minor avail to others such as shared memory driver
     146   */
     147
     148  rtems_clock_major = major;
     149  rtems_clock_minor = minor;
     150 
     151  return RTEMS_SUCCESSFUL;
     152}
     153
     154rtems_device_driver Clock_control(
     155  rtems_device_major_number major,
     156  rtems_device_minor_number minor,
     157  void *pargp
     158)
     159{
     160    rtems_libio_ioctl_args_t *args = pargp;
     161 
     162    if (args == 0)
     163        goto done;
     164 
     165    /*
     166     * This is hokey, but until we get a defined interface
     167     * to do this, it will just be this simple...
     168     */
     169 
     170    if (args->command == rtems_build_name('I', 'S', 'R', ' '))
     171    {
     172        Clock_isr(CLOCK_VECTOR);
     173    }
     174    else if (args->command == rtems_build_name('N', 'E', 'W', ' '))
     175    {
     176        ReInstall_clock(args->buffer);
     177    }
     178 
     179done:
     180    return RTEMS_SUCCESSFUL;
     181}
     182
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