lld_eic.c

本程序为ST公司开发的源代码

/*____________________________________________________________________________
| FILE:         lld_eic.c
| PROJECT:      OS20_ACCORDO+
| SW-COMPONENT: 
|_____________________________________________________________________________
| DESCRIPTION:  Eic functions
|_____________________________________________________________________________
| COPYRIGHT:    (c) 2005 STMicroelectronics, Arzano (ITALY)
| HISTORY:
| Date      | Modification               					| Author
|_____________________________________________________________________________
| $Date: 2007/05/02 12:32:16 $  | Initial revision							    | $Author: belardi $
|____________________________________________________________________________*/

#include "lld_eic.h"
#include "interrup.h"

#include "os_task_profiling.h"

#ifdef __cplusplus
extern "C" {
#endif



/************************************************************************
|defines and macros (scope: module-local)
|-----------------------------------------------------------------------*/
#define INT_EN             1

#define EIC_CHANNEL_NUM	   32

#define DEFAULT_ISR			&DefaultISRRoutine

#define CHANNEL_00         0		// IRQ_EXT0/IRQ_EXT1/IRQ_EXT2/IRQ_EXT3
#define CHANNEL_01         1		// IRQ_EXT4/IRQ_EXT5/IRQ_EXT6/IRQ_EXT7
#define CHANNEL_02         2		// IRQ_EXT8
#define CHANNEL_03         3		// GND
#define CHANNEL_04         4		// IRQ_WAKEUP
#define CHANNEL_05         5		// IRQ_RCCU
#define CHANNEL_06         6		// IRQ_BSPI
#define CHANNEL_07         7		// IRQ_UART0
#define CHANNEL_08         8		// IRQ_UART1
#define CHANNEL_09         9		// IRQ_I2C0_ITDDC
#define CHANNEL_10         10		// IRQ_I2C0_ITERR
#define CHANNEL_11         11		// IRQ_I2C1_ITDDC
#define CHANNEL_12         12		// IRQ_I2C1_ITERR
#define CHANNEL_13         13		// GND
#define CHANNEL_14         14		// GND
#define CHANNEL_15         15		// IRQ_SRC_OFL or IRQ_SRC_UFL
#define CHANNEL_16         16		// IRQ_SRC_DRF
#define CHANNEL_17         17		// IRQ_SRC_DRE
#define CHANNEL_18         18		// IRQ_DMA_INTR
#define CHANNEL_19         19		// IRQ_DMA_INTR0
#define CHANNEL_20         20		// IRQ_DMA_INTR1
#define CHANNEL_21         21		// GND
#define CHANNEL_22         22		// GND
#define CHANNEL_23         23		// GND
#define CHANNEL_24         24		// GND
#define CHANNEL_25         25		// GND
#define CHANNEL_26         26		// GND
#define CHANNEL_27         27		// GND
#define CHANNEL_28         28		// GND
#define CHANNEL_29         29		// IRQ_EFT0
#define CHANNEL_30         30		// IRQ_EFT1
#define CHANNEL_31         31		// IRQ_WDG

extern tVoid REENT_CONTEXT_RESTORE(void);

//#define INT_INTERRUPT_RESTORE() REENT_CONTEXT_RESTORE()

/************************************************************************
|typedefs (scope: module-local)
|-----------------------------------------------------------------------*/
typedef struct 
{
   tU32 SIPL:4;
   tU32 RESERVED:12;
   tU32 SIV:16;
} trSir;

typedef struct
{					
  tU32 IER_00:1;
  tU32 IER_01:1;
  tU32 IER_02:1;
  tU32 IER_03:1;
  tU32 IER_04:1;
  tU32 IER_05:1;
  tU32 IER_06:1;
  tU32 IER_07:1;
  tU32 IER_08:1;
  tU32 IER_09:1;
  tU32 IER_10:1;
  tU32 IER_11:1;
  tU32 IER_12:1;
  tU32 IER_13:1;
  tU32 IER_14:1;
  tU32 IER_15:1;
  tU32 IER_16:1;
  tU32 IER_17:1;
  tU32 IER_18:1;
  tU32 IER_19:1;
  tU32 IER_20:1;
  tU32 IER_21:1;
  tU32 IER_22:1;
  tU32 IER_23:1;
  tU32 IER_24:1;
  tU32 IER_25:1;
  tU32 IER_26:1;
  tU32 IER_27:1;
  tU32 IER_28:1;
  tU32 IER_29:1;
  tU32 IER_30:1;
  tU32 IER_31:1;
} IER0Ty;

/* WORD(32) access */
typedef struct rEic
{
   struct
   {			         
      tU32 IRQ_EN:1;
      tU32 FIQ_EN:1;
      tU32 RESERVED:30;
   } ICR;					/* addr offset = 0x0 */

   struct
   {			         
      tU32 CIC:5;
      tU32 RESERVED:27;
   } CICR;					/* addr offset = 0x4 */
 
   struct
   {			         
      tU32 CIP:4;
      tU32 RESERVED:28;
   } CIPR;					/* addr offset = 0x8 */
 
   gap(6);

   struct
   {			         
      tU32 JUMP_OFFSET:16;
      tU32 JUMP_INSTR:16;
   } IVR;					/* addr offset = 0x18 */
 
   struct
   {			         
      tU32 FIE:2;
      tU32 FIP:2;
      tU32 RESERVED:28;
   } FIR;					/* addr offset = 0x1C*/

   IER0Ty IER0;					/* addr offset = 0x20 */

   gap(14);
 
   struct
   {
      tU32 IPR_00:1;
      tU32 IPR_01:1;
      tU32 IPR_02:1;
      tU32 IPR_03:1;
      tU32 IPR_04:1;
      tU32 IPR_05:1;
      tU32 IPR_06:1;
      tU32 IPR_07:1;
      tU32 IPR_08:1;
      tU32 IPR_09:1;
      tU32 IPR_10:1;
      tU32 IPR_11:1;
      tU32 IPR_12:1;
      tU32 IPR_13:1;
      tU32 IPR_14:1;
      tU32 IPR_15:1;
      tU32 IPR_16:1;
      tU32 IPR_17:1;
      tU32 IPR_18:1;
      tU32 IPR_19:1;
      tU32 IPR_20:1;
      tU32 IPR_21:1;
      tU32 IPR_22:1;
      tU32 IPR_23:1;
      tU32 IPR_24:1;
      tU32 IPR_25:1;
      tU32 IPR_26:1;
      tU32 IPR_27:1;
      tU32 IPR_28:1;
      tU32 IPR_29:1;
      tU32 IPR_30:1;
      tU32 IPR_31:1;
   } IPR0; 					/* addr offset = 0x40 */
 
   gap(14);				 
 
   trSir rSIR[32];	 	 	/* addr offset = 0x60 + 4*(0<=k<=31) */
} rEic;

typedef struct 
{
		unsigned int R0;
		unsigned int R1;
		unsigned int R2;
		unsigned int R3;
		unsigned int R4;
		unsigned int R5;
		unsigned int R6;
		unsigned int R7;
		unsigned int R8;
		unsigned int R9;
		unsigned int R10;
		unsigned int R11;
		unsigned int R12;
		unsigned int StackPointer;
		unsigned int InstrAddress;
		unsigned int ExceptedModePSR;
		unsigned int ExceptionModePSR; 
} Exception_t;

tVoid DefaultISRRoutine (void);

/************************************************************************
| variable definition (scope: global)
|-----------------------------------------------------------------------*/

/************************************************************************
| variable definition (scope: module-local)
|-----------------------------------------------------------------------*/
/* Place Eic pheripheral according to scatter file */
#pragma arm section zidata = "Eic_map"
	volatile rEic Eic;
	
#pragma arm section zidata

/* here the temporary already sorted Exception Information is stored by Assembler Handler */
Exception_t ExceptionData = {0,0,0,0,0,0,0,0,0,0,0,0,0,0};

DevISRInfo	ISRInfoVect[EIC_CHANNEL_NUM]=
{ 
						DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,
						DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,
						DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,
						DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,
						DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,
						DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,
						DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,
						DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR,DEFAULT_ISR
};

void DefaultISRRoutine (void) {}

/************************************************************************
|function prototype (scope: module-local)
|-----------------------------------------------------------------------*/
//static void NotUsedChannel (void);

/************************************************************************
|function implementation (scope: module-local)
|-----------------------------------------------------------------------*/
/************************************************************************
*                                                                       *
* FUNCTION                                                              *
*                                                                       *
*      NotUsedChannel                                                   *
*                                                                       *
* DESCRIPTION                                                           *
*      Stub function to init interrupt handler pointer                  *
*                                                                       *
* CALLS                                                                 *
*                                                                       *
*      None                                                             *
*                                                                       *
* INPUTS                                                                *
*                                                                       *
*      None                                                             *
*                                                                       *
* OUTPUTS                                                               *
*                                                                       *
*      None                                                             *
************************************************************************/
//static void NotUsedChannel (void) {}

/************************************************************************
|function prototype (scope: IRQ)
|-----------------------------------------------------------------------*/
/************************************************************************
*                                                                       *
* FUNCTIONS                                                             *
*      ISR_HandlerServe                                                 *
*                                                                       *
* DESCRIPTION                                                           *
*      ISR routines simply calling interrupt handler pointer            *
*                                                                       *
* CALLS                                                                 *
*      None                                                             *
*                                                                       *
* INPUTS                                                                *
*      None                                                             *
*                                                                       *
* OUTPUTS                                                               *
*      None                                                             *
*                                                                       *
************************************************************************/

// [RB] this function contains __asm instructions which cannot
// be compiled in Thumb mode
#pragma PUSH
#pragma ARM