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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [i386/] [i386ex/] [startup/] [bspstart.c] - Blame information for rev 602

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/*
 *  This routine starts the application.  It includes application,
 *  board, and monitor specific initialization and configuration.
 *  The generic CPU dependent initialization has been performed
 *  before this routine is invoked.
 *
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.OARcorp.com/rtems/license.html.
 *
 *  Ported to the i386ex and submitted by:
 *
 *    Erik Ivanenko
 *    University of Toronto
 *    erik.ivanenko@utoronto.ca
 *
 *  $Id: bspstart.c,v 1.2 2001-09-27 11:59:47 chris Exp $
 */
 
void bsp_clean_up(void);
 
#include <bsp.h>
#include <rtems/libio.h>
 
#include <libcsupport.h>
 
/*
 *  The original table from the application and our copy of it with
 *  some changes.
 */
 
extern rtems_configuration_table  Configuration;
rtems_configuration_table  BSP_Configuration;
 
rtems_cpu_table Cpu_table;
 
/*
 *  Tells us where to put the workspace in case remote debugger is present.
 */
 
extern rtems_unsigned32  rdb_start;
 
/*
 *  Use the shared implementations of the following routines
 */
 
void bsp_postdriver_hook(void);
void bsp_libc_init( void *, unsigned32, int );
 
/*
 *  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)
{
    extern int heap_bottom;
    rtems_unsigned32 heap_start;
    rtems_unsigned32 heap_size;
 
    heap_start = (rtems_unsigned32) &heap_bottom;
    if (heap_start & (CPU_ALIGNMENT-1))
      heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
 
    heap_size = BSP_Configuration.work_space_start -(void *) heap_start ;
    heap_size &= 0xfffffff0;  /* keep it as a multiple of 16 bytes */
 
    heap_size &= 0xfffffff0;  /* keep it as a multiple of 16 bytes */
    bsp_libc_init((void *) heap_start, heap_size, 0);
 
 
#ifdef RTEMS_DEBUG
    rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
 
/*
 *  bsp_start
 *
 *  This routine does the bulk of the system initialization.
 */
 
void bsp_start( void )
{
     /*
    *  we do not use the pretasking_hook.
   */
 
  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
  Cpu_table.postdriver_hook = bsp_postdriver_hook;
  Cpu_table.interrupt_table_segment = get_ds();
  Cpu_table.interrupt_table_offset = (void *)Interrupt_descriptor_table;
  /* changed Sept 14 STACK_MINIMUM_SIZE */
  Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
 
#if defined(RTEMS_POSIX_API)
  BSP_Configuration.work_space_size *= 3;
#endif
 
    BSP_Configuration.work_space_start = (void *)
     RAM_END - BSP_Configuration.work_space_size;
#ifdef DEBUG  
  printk("workspace size = 0x%x\nstart = 0x%x, RAM_END = 0x%x\n",BSP_Configuration.work_space_size,  BSP_Configuration.work_space_start, RAM_END );
#endif
 
  /*
   *  Account for the console's resources
   */
 
  /*
   * Init rtems_interrupt_management
   */
  rtems_irq_mngt_init();
}
void bsp_clean_up(void) {
  printk("bsp_cleanup called\n");
}

Line No.	Rev	Author	Line
1	30	unneback	`/*`
2			`* This routine starts the application. It includes application,`
3			`* board, and monitor specific initialization and configuration.`
4			`* The generic CPU dependent initialization has been performed`
5			`* before this routine is invoked.`
6			`*`
7			`* COPYRIGHT (c) 1989-1999.`
8			`* On-Line Applications Research Corporation (OAR).`
9			`*`
10			`* The license and distribution terms for this file may be`
11			`* found in the file LICENSE in this distribution or at`
12			`* http://www.OARcorp.com/rtems/license.html.`
13			`*`
14			`* Ported to the i386ex and submitted by:`
15			`*`
16			`* Erik Ivanenko`
17			`* University of Toronto`
18			`* erik.ivanenko@utoronto.ca`
19			`*`
20			`* $Id: bspstart.c,v 1.2 2001-09-27 11:59:47 chris Exp $`
21			`*/`
22
23			`void bsp_clean_up(void);`
24
25			`#include <bsp.h>`
26			`#include <rtems/libio.h>`
27
28			`#include <libcsupport.h>`
29
30			`/*`
31			`* The original table from the application and our copy of it with`
32			`* some changes.`
33			`*/`
34
35			`extern rtems_configuration_table Configuration;`
36			`rtems_configuration_table BSP_Configuration;`
37
38			`rtems_cpu_table Cpu_table;`
39
40			`/*`
41			`* Tells us where to put the workspace in case remote debugger is present.`
42			`*/`
43
44			`extern rtems_unsigned32 rdb_start;`
45
46			`/*`
47			`* Use the shared implementations of the following routines`
48			`*/`
49
50			`void bsp_postdriver_hook(void);`
51			`void bsp_libc_init( void *, unsigned32, int );`
52
53			`/*`
54			`* Function: bsp_pretasking_hook`
55			`* Created: 95/03/10`
56			`*`
57			`* Description:`
58			`* BSP pretasking hook. Called just before drivers are initialized.`
59			`* Used to setup libc and install any BSP extensions.`
60			`*`
61			`* NOTES:`
62			`* Must not use libc (to do io) from here, since drivers are`
63			`* not yet initialized.`
64			`*`
65			`*/`
66
67			`void bsp_pretasking_hook(void)`
68			`{`
69			`extern int heap_bottom;`
70			`rtems_unsigned32 heap_start;`
71			`rtems_unsigned32 heap_size;`
72
73			`heap_start = (rtems_unsigned32) &heap_bottom;`
74			`if (heap_start & (CPU_ALIGNMENT-1))`
75			`heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);`
76
77			`heap_size = BSP_Configuration.work_space_start -(void *) heap_start ;`
78			`heap_size &= 0xfffffff0; /* keep it as a multiple of 16 bytes */`
79
80			`heap_size &= 0xfffffff0; /* keep it as a multiple of 16 bytes */`
81			`bsp_libc_init((void *) heap_start, heap_size, 0);`
82
83
84			`#ifdef RTEMS_DEBUG`
85			`rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );`
86			`#endif`
87			`}`
88
89			`/*`
90			`* bsp_start`
91			`*`
92			`* This routine does the bulk of the system initialization.`
93			`*/`
94
95			`void bsp_start( void )`
96			`{`
97			`/*`
98			`* we do not use the pretasking_hook.`
99			`*/`
100
101			`Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */`
102			`Cpu_table.postdriver_hook = bsp_postdriver_hook;`
103			`Cpu_table.interrupt_table_segment = get_ds();`
104			`Cpu_table.interrupt_table_offset = (void *)Interrupt_descriptor_table;`
105			`/* changed Sept 14 STACK_MINIMUM_SIZE */`
106			`Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;`
107
108			`#if defined(RTEMS_POSIX_API)`
109			`BSP_Configuration.work_space_size *= 3;`
110			`#endif`
111
112			`BSP_Configuration.work_space_start = (void *)`
113			`RAM_END - BSP_Configuration.work_space_size;`
114			`#ifdef DEBUG`
115			`printk("workspace size = 0x%x\nstart = 0x%x, RAM_END = 0x%x\n",BSP_Configuration.work_space_size, BSP_Configuration.work_space_start, RAM_END );`
116			`#endif`
117
118			`/*`
119			`* Account for the console's resources`
120			`*/`
121
122			`/*`
123			`* Init rtems_interrupt_management`
124			`*/`
125			`rtems_irq_mngt_init();`
126			`}`
127			`void bsp_clean_up(void) {`
128			`printk("bsp_cleanup called\n");`
129			`}`

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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [i386/] [i386ex/] [startup/] [bspstart.c] - Blame information for rev 602