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updated to format of 3.6.0

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This commit is contained in:
Joel Sherrill
1996-10-15 21:39:27 +00:00
parent 6c58b6fea3
commit fe6ef776a7
2 changed files with 103 additions and 43 deletions
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13
c/src/lib/libbsp/i386/i386ex/include/bsp.h
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@@ -21,6 +21,8 @@ extern "C" {
#include <rtems.h>
#include <iosupp.h>
#include <console.h>
#include <clockdrv.h>
/*
* Define the time limits for RTEMS Test Suite test durations.
@@ -88,17 +90,6 @@ extern "C" {
#define Is_rx_ready( _status ) ( (_status) & 0x01 )
/* Timer constants: WE DON'T use THESE */
#define IERA 0x106 /* Interrupt Enable Register A */
#define IMRA 0x112 /* Interrupt Mask Register A */
#define TACR 0x118 /* Timer A Control Register */
#define TADR 0x11e /* Timer A Data Register */
#define IERB 0x108 /* Interrupt Enable Register B */
#define TBCR 0x11a /* Timer B Control Register */
#define TBDR 0x120 /* Timer B Data Register */
/* Structures */
#ifdef F386_INIT

133
c/src/lib/libbsp/i386/i386ex/startup/bspstart.c
View File

@@ -20,14 +20,17 @@
* $Id$
*/
#include <rtems.h>
#include <bsp.h>
#include <rtems/libio.h>
#include <libcsupport.h>
#include <fcntl.h>
#include <stackchk.h>
#include <stdio.h>
#ifdef PRINTON
extern char inbyte(void);
extern void outbyte(char);
#endif
/*
* The original table from the application and our copy of it with
@@ -39,78 +42,145 @@ rtems_configuration_table BSP_Configuration;
rtems_cpu_table Cpu_table;
char *rtems_progname;
/* Initialize whatever libc we are using
* called from postdriver hook
*/
void bsp_libc_init()
{
extern int end;
rtems_unsigned32 heap_start;
heap_start = (rtems_unsigned32) &end;
if (heap_start & (CPU_ALIGNMENT-1))
heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
RTEMS_Malloc_Initialize((void *) heap_start, 64 * 1024, 0);
/*
* Init the RTEMS libio facility to provide UNIX-like system
* calls for use by newlib (ie: provide __open, __close, etc)
* Uses malloc() to get area for the iops, so must be after malloc init
*/
rtems_libio_init();
/*
* Set up for the libc handling.
*/
if (BSP_Configuration.ticks_per_timeslice > 0)
libc_init(1); /* reentrant if possible */
else
libc_init(0); /* non-reentrant */
}
/*
* Function: bsp_pretasking_hook
* Created: 95/03/10
*
* Description:
* BSP pretasking hook. Called just before drivers are initialized.
* Used to setup libc and install any BSP extensions.
*
* NOTES:
* Must not use libc (to do io) from here, since drivers are
* not yet initialized.
*
*/
void
bsp_pretasking_hook(void)
{
bsp_libc_init();
#ifdef STACK_CHECKER_ON
/*
* Initialize the stack bounds checker
* We can either turn it on here or from the app.
*/
#ifdef STACK_CHECKER_ON
Stack_check_Initialize();
#endif
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
extern char inbyte(void);
extern void outbyte(char);
int bsp_start(
/*
* After drivers are setup, register some "filenames"
* and open stdin, stdout, stderr files
*
* Newlib will automatically associate the files with these
* (it hardcodes the numbers)
*/
void
bsp_postdriver_hook(void)
{
int stdin_fd, stdout_fd, stderr_fd;
int error_code;
error_code = 'S' << 24 | 'T' << 16;
if ((stdin_fd = __open("/dev/console", O_RDONLY, 0)) == -1)
rtems_fatal_error_occurred( error_code | 'D' << 8 | '0' );
if ((stdout_fd = __open("/dev/console", O_WRONLY, 0)) == -1)
rtems_fatal_error_occurred( error_code | 'D' << 8 | '1' );
if ((stderr_fd = __open("/dev/console", O_WRONLY, 0)) == -1)
rtems_fatal_error_occurred( error_code | 'D' << 8 | '2' );
if ((stdin_fd != 0) || (stdout_fd != 1) || (stderr_fd != 2))
rtems_fatal_error_occurred( error_code | 'I' << 8 | 'O' );
}
int main(
int argc,
char **argv,
char **environp
)
{
#ifdef PRINTON
#ifdef PRINTON
outbyte('a');
outbyte('b');
outbyte('c');
outbyte ('S');
#endif
if ((argc > 0) && argv && argv[0])
rtems_progname = argv[0];
else
rtems_progname = "RTEMS";
/*
* we do not use the pretasking_hook.
*/
Cpu_table.pretasking_hook = NULL;
Cpu_table.predriver_hook = bsp_libc_init; /* RTEMS resources available */
Cpu_table.postdriver_hook = NULL; /* Call our main() for constructors */
Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */
Cpu_table.predriver_hook = NULL;
Cpu_table.postdriver_hook = bsp_postdriver_hook;
Cpu_table.idle_task = NULL; /* do not override system IDLE task */
Cpu_table.do_zero_of_workspace = TRUE;
Cpu_table.interrupt_table_segment = get_ds();
Cpu_table.interrupt_table_offset = (void *)Interrupt_descriptor_table;
Cpu_table.interrupt_stack_size = 4096;
Cpu_table.extra_system_initialization_stack = 0;
Cpu_table.extra_mpci_receive_server_stack = 0;
/*
* Copy the table
@@ -121,7 +191,6 @@ int bsp_start(
BSP_Configuration.work_space_start = (void *)
RAM_END - BSP_Configuration.work_space_size;
#ifdef SPRINTON
sprintf( x_buffer, "ram end : %u, work_space_size: %d\n",
@@ -135,7 +204,7 @@ int bsp_start(
* Add 1 region for Malloc in libc_low
*/
BSP_Configuration.maximum_regions++;
BSP_Configuration.RTEMS_api_configuration->maximum_regions++;
/*
* Add 1 extension for newlib libc
@@ -155,6 +224,6 @@ int bsp_start(
rtems_initialize_executive( &BSP_Configuration, &Cpu_table );
/* does not return */
/* no cleanup necessary for Force CPU-386 */
/* no cleanup necessary for i386ex */
for (;;); /* was return 0 to go to the debug monitor */
}