URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [m68k/] [mvme147s/] [shmsupp/] [getcfg.c] - Blame information for rev 690

Go to most recent revision | Details | Compare with Previous | View Log


/*  void Shm_Get_configuration( localnode, &shmcfg )
 *
 *  This routine initializes, if necessary, and returns a pointer
 *  to the Shared Memory Configuration Table for the MVME147.
 *
 *  INPUT PARAMETERS:
 *    localnode - local node number
 *    shmcfg    - address of pointer to SHM Config Table
 *
 *  OUTPUT PARAMETERS:
 *    *shmcfg   - pointer to SHM Config Table
 *
 *  NOTES:  The SIGLP interrupt on the MVME147 is used as an interprocessor
 *          interrupt.
 *
 *  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.
 *
 *  MVME147 port for TNI - Telecom Bretagne
 *  by Dominique LE CAMPION (Dominique.LECAMPION@enst-bretagne.fr)
 *  June 1996
 *
 *  $Id: getcfg.c,v 1.2 2001-09-27 12:00:17 chris Exp $
 */
 
#include <bsp.h>
#include <rtems.h>
#include "shm_driver.h"
 
#define INTERRUPT 1                   /* MVME147 target supports both */
#define POLLING   0                   /* polling and interrupt modes  */
 
shm_config_table BSP_shm_cfgtbl;
 
rtems_unsigned32 *BSP_int_address()
{
  rtems_unsigned32 id, offset;
 
  id      = (rtems_unsigned32) vme_lcsr->gcsr_base_address;
  offset  = (id << 4) & 0xF0;
  offset |= 0xffff0003; /* points to GCSR global 1 */
  return( (rtems_unsigned32 * ) offset );
}
 
void Shm_Get_configuration(
  rtems_unsigned32   localnode,
  shm_config_table **shmcfg
)
{
  /* A shared mem space has bee left between RAM_END and DRAM_END
   on the first node*/
  if (localnode == 1)
    BSP_shm_cfgtbl.base       = (vol_u32 *) RAM_END;
  else
    BSP_shm_cfgtbl.base       = (vol_u32 *) (DRAM_END + RAM_END);
 
  BSP_shm_cfgtbl.length       = DRAM_END - RAM_END;
  BSP_shm_cfgtbl.format       = SHM_BIG;
 
  BSP_shm_cfgtbl.cause_intr   = Shm_Cause_interrupt;
 
#ifdef NEUTRAL_BIG
  BSP_shm_cfgtbl.convert      = NULL_CONVERT;
#else
  BSP_shm_cfgtbl.convert      = CPU_swap_u32;
#endif
 
#if (POLLING==1)
  BSP_shm_cfgtbl.poll_intr    = POLLED_MODE;
  BSP_shm_cfgtbl.Intr.address = NO_INTERRUPT;
  BSP_shm_cfgtbl.Intr.value   = NO_INTERRUPT;
  BSP_shm_cfgtbl.Intr.length  = NO_INTERRUPT;
#else
  BSP_shm_cfgtbl.poll_intr    = INTR_MODE;
  BSP_shm_cfgtbl.Intr.address = BSP_int_address(); /* GCSR global 1 */
  BSP_shm_cfgtbl.Intr.value   = 0x01; /* SIGLP */
  BSP_shm_cfgtbl.Intr.length  = BYTE;
#endif
 
  *shmcfg = &BSP_shm_cfgtbl;
 
}

Line No.	Rev	Author	Line
1	30	unneback	`/* void Shm_Get_configuration( localnode, &shmcfg )`
2			`*`
3			`* This routine initializes, if necessary, and returns a pointer`
4			`* to the Shared Memory Configuration Table for the MVME147.`
5			`*`
6			`* INPUT PARAMETERS:`
7			`* localnode - local node number`
8			`* shmcfg - address of pointer to SHM Config Table`
9			`*`
10			`* OUTPUT PARAMETERS:`
11			`* *shmcfg - pointer to SHM Config Table`
12			`*`
13			`* NOTES: The SIGLP interrupt on the MVME147 is used as an interprocessor`
14			`* interrupt.`
15			`*`
16			`* COPYRIGHT (c) 1989-1999.`
17			`* On-Line Applications Research Corporation (OAR).`
18			`*`
19			`* The license and distribution terms for this file may be`
20			`* found in the file LICENSE in this distribution or at`
21			`* http://www.OARcorp.com/rtems/license.html.`
22			`*`
23			`* MVME147 port for TNI - Telecom Bretagne`
24			`* by Dominique LE CAMPION (Dominique.LECAMPION@enst-bretagne.fr)`
25			`* June 1996`
26			`*`
27			`* $Id: getcfg.c,v 1.2 2001-09-27 12:00:17 chris Exp $`
28			`*/`
29
30			`#include <bsp.h>`
31			`#include <rtems.h>`
32			`#include "shm_driver.h"`
33
34			`#define INTERRUPT 1 /* MVME147 target supports both */`
35			`#define POLLING 0 /* polling and interrupt modes */`
36
37			`shm_config_table BSP_shm_cfgtbl;`
38
39			`rtems_unsigned32 *BSP_int_address()`
40			`{`
41			`rtems_unsigned32 id, offset;`
42
43			`id = (rtems_unsigned32) vme_lcsr->gcsr_base_address;`
44			`offset = (id << 4) & 0xF0;`
45			`offset \|= 0xffff0003; /* points to GCSR global 1 */`
46			`return( (rtems_unsigned32 * ) offset );`
47			`}`
48
49			`void Shm_Get_configuration(`
50			`rtems_unsigned32 localnode,`
51			`shm_config_table **shmcfg`
52			`)`
53			`{`
54			`/* A shared mem space has bee left between RAM_END and DRAM_END`
55			`on the first node*/`
56			`if (localnode == 1)`
57			`BSP_shm_cfgtbl.base = (vol_u32 *) RAM_END;`
58			`else`
59			`BSP_shm_cfgtbl.base = (vol_u32 *) (DRAM_END + RAM_END);`
60
61			`BSP_shm_cfgtbl.length = DRAM_END - RAM_END;`
62			`BSP_shm_cfgtbl.format = SHM_BIG;`
63
64			`BSP_shm_cfgtbl.cause_intr = Shm_Cause_interrupt;`
65
66			`#ifdef NEUTRAL_BIG`
67			`BSP_shm_cfgtbl.convert = NULL_CONVERT;`
68			`#else`
69			`BSP_shm_cfgtbl.convert = CPU_swap_u32;`
70			`#endif`
71
72			`#if (POLLING==1)`
73			`BSP_shm_cfgtbl.poll_intr = POLLED_MODE;`
74			`BSP_shm_cfgtbl.Intr.address = NO_INTERRUPT;`
75			`BSP_shm_cfgtbl.Intr.value = NO_INTERRUPT;`
76			`BSP_shm_cfgtbl.Intr.length = NO_INTERRUPT;`
77			`#else`
78			`BSP_shm_cfgtbl.poll_intr = INTR_MODE;`
79			`BSP_shm_cfgtbl.Intr.address = BSP_int_address(); /* GCSR global 1 */`
80			`BSP_shm_cfgtbl.Intr.value = 0x01; /* SIGLP */`
81			`BSP_shm_cfgtbl.Intr.length = BYTE;`
82			`#endif`
83
84			`*shmcfg = &BSP_shm_cfgtbl;`
85
86			`}`

Browse

Tools

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [m68k/] [mvme147s/] [shmsupp/] [getcfg.c] - Blame information for rev 690