lld_gpio.h

本程序为ST公司开发的源代码

/*____________________________________________________________________________
| FILE:         lld_gpio.h
| PROJECT:      OS20_ACCORDO+
| SW-COMPONENT: 
|_____________________________________________________________________________
| DESCRIPTION:  Low level driver for General Purpose I/O Ports          
|_____________________________________________________________________________
| COPYRIGHT:    (c) 2005 STMicroelectronics, Arzano (ITALY)
| HISTORY:
| Date      | Modification               						| Author
|_____________________________________________________________________________
| 05.10.27  | Initial revision        							| M. De Martino
|____________________________________________________________________________*/

#include "macro.h"
#include "types.h"

#ifndef _LLD_GPIO_H_
#define _LLD_GPIO_H_

#ifdef __cplusplus
extern "C" {
#endif

/************************************************************************
| defines
|-----------------------------------------------------------------------*/
#define GPIO_PORT_NUM			2
#define GPIO_PIN_NUM			15

/************************************************************************
| typedefs 
|-----------------------------------------------------------------------*/
 /* gpio identificator */
typedef enum
{
	GPIO_A,
	GPIO_B
} GPIO_ID;

typedef enum GPIO_pinTy
{
	GPIO_PIN_00 = 0x0001,
	GPIO_PIN_01 = 0x0002,
	GPIO_PIN_02 = 0x0004,
	GPIO_PIN_03 = 0x0008,
	GPIO_PIN_04 = 0x0010,
	GPIO_PIN_05 = 0x0020,
	GPIO_PIN_06 = 0x0040,
	GPIO_PIN_07 = 0x0080,
	GPIO_PIN_08 = 0x0100,
	GPIO_PIN_09 = 0x0200,
	GPIO_PIN_10 = 0x0400,
	GPIO_PIN_11 = 0x0800,
	GPIO_PIN_12 = 0x1000,
	GPIO_PIN_13 = 0x2000,
	GPIO_PIN_14 = 0x4000,
	GPIO_PIN_15 = 0x8000	
} GPIO_pinTy;

typedef enum GPIO_portTy
{
	GPIO_PORT_A = 0,
	GPIO_PORT_B = 1
} GPIO_portTy;
	
/* Following structure has HALFWORD(16) access */
typedef struct rGpio
{ 
   struct
   {                                     
      tU16 C00:1;
      tU16 C01:1;
      tU16 C02:1;
      tU16 C03:1;
      tU16 C04:1;
      tU16 C05:1;
      tU16 C06:1;
      tU16 C07:1;
      tU16 C08:1;
      tU16 C09:1;
      tU16 C010:1;
      tU16 C011:1;
      tU16 C012:1;
      tU16 C013:1;
      tU16 C014:1;
      tU16 C015:1;
   } Pc0;						/* addr offset = 0x00 */
   
   intra16;

   struct
   {                                     
      tU16 C10:1;
      tU16 C11:1;
      tU16 C12:1;
      tU16 C13:1;
      tU16 C14:1;
      tU16 C15:1;
      tU16 C16:1;
      tU16 C17:1;
      tU16 C18:1;
      tU16 C19:1;
      tU16 C110:1;
      tU16 C111:1;
      tU16 C112:1;
      tU16 C113:1;
      tU16 C114:1;
      tU16 C115:1;
   } Pc1;						/* addr offset = 0x04 */
   
   intra16;

   struct
   {                                     
      tU16 C20:1;
      tU16 C21:1;
      tU16 C22:1;
      tU16 C23:1;
      tU16 C24:1;
      tU16 C25:1;
      tU16 C26:1;
      tU16 C27:1;
      tU16 C28:1;
      tU16 C29:1;
      tU16 C210:1;
      tU16 C211:1;
      tU16 C212:1;
      tU16 C213:1;
      tU16 C214:1;
      tU16 C215:1;
   } Pc2;						/* addr offset = 0x08 */
   
   intra16;

   struct
   {                                     
      tU16 D0:1;
      tU16 D1:1;
      tU16 D2:1;
      tU16 D3:1;
      tU16 D4:1;
      tU16 D5:1;
      tU16 D6:1;
      tU16 D7:1;
      tU16 D8:1;
      tU16 D9:1;
      tU16 D10:1;
      tU16 D11:1;
      tU16 D12:1;
      tU16 D13:1;
      tU16 D14:1;
      tU16 D15:1;
   } Pd;						/* addr offset = 0x0C */

} rGpio;
	
/************************************************************************
| variable definitions (from .c)
|-----------------------------------------------------------------------*/
extern volatile rGpio GpioA;

extern volatile rGpio GpioB;

/************************************************************************ 
| function prototypes
|-----------------------------------------------------------------------*/
__inline static tVoid LLD_GPIO_PortAToggle (GPIO_pinTy pin)
{
   wr16_reg (GpioA, Pd, (rd16_reg (GpioA, Pd) ^ pin));
}

__inline static tVoid LLD_GPIO_PortBToggle (GPIO_pinTy pin)
{
   wr16_reg (GpioB, Pd, (rd16_reg (GpioB, Pd) ^ pin));
}

__inline static tU16 LLD_GPIO_PortADirectRead (tVoid)
{
	return rd16_reg (GpioA, Pd);
}

__inline static tU16 LLD_GPIO_PortBDirectRead (tVoid)
{
	return rd16_reg (GpioB, Pd);
}

__inline static tVoid LLD_GPIO_PortADirectWrite (tU16 data)
{
	 wr16_reg (GpioA, Pd, data);
}

__inline static tVoid LLD_GPIO_PortBDirectWrite (tU16 data)
{
	 wr16_reg (GpioB, Pd, data);
}

extern tVoid LLD_GPIO_SetPPOutput(GPIO_ID id, tU8 u8Pin);
extern tVoid LLD_GPIO_SetODOutput(GPIO_ID id, tU8 u8Pin);
extern tVoid LLD_GPIO_SetAFPPOutput(GPIO_ID id, tU8 u8Pin);
extern tVoid LLD_GPIO_SetAFODOutput(GPIO_ID id, tU8 u8Pin);
extern tVoid LLD_GPIO_SetInput(GPIO_ID id, tU8 u8Pin);
extern tVoid LLD_GPIO_SetInput2(GPIO_ID id, tU8 u8Pin);
extern tVoid LLD_GPIO_SetBiDirect(GPIO_ID id, tU8 u8Pin);
extern tVoid LLD_GPIO_SetHiZ(GPIO_ID id, tU8 u8Pin);

extern tU8   LLD_GPIO_GetState(GPIO_ID id, tU8 u8Pin);

extern tVoid LLD_GPIO_SetStateHigh(GPIO_ID id, tU8 u8Pin);
extern tVoid LLD_GPIO_SetStateLow(GPIO_ID id, tU8 u8Pin);
extern tVoid LLD_GPIO_SetStateToggle(GPIO_ID id, tU8 u8Pin);

extern tVoid LLD_GPIO_AFToGpioSwitch(tU8 u8Pin);
extern tVoid LLD_GPIO_GpioToAFSwitch(tU8 u8Pin);

#ifdef __cplusplus
}
#endif

#endif  /* _LLD_GPIO_H_ */

/* End of file */