fp@59: /******************************************************************************
fp@59:  *
fp@59:  *  E t h e r C A T _ s i . h
fp@59:  *
fp@59:  *  EtherCAT Slave-Interface.
fp@59:  *
fp@59:  *  $Id$
fp@59:  *
fp@59:  *****************************************************************************/
fp@59: 
fp@77: #include <asm/byteorder.h>
fp@77: 
fp@59: /*****************************************************************************/
fp@59: 
fp@74: // Bitwise read/write macros
fp@59: 
fp@74: #define EC_READ_BIT(PD, CH) (*((uint8_t *) (PD)) >> (CH)) & 0x01)
fp@59: 
fp@74: #define EC_WRITE_BIT(PD, CH, VAL) \
fp@59:     do { \
fp@74:         if (VAL) *((uint8_t *) (PD)) |=  (1 << (CH)); \
fp@74:         else     *((uint8_t *) (PD)) &= ~(1 << (CH)); \
fp@59:     } while (0)
fp@59: 
fp@59: /*****************************************************************************/
fp@59: 
fp@74: // Read macros
fp@71: 
fp@77: #define EC_READ_U8(PD) ((uint8_t) *((uint8_t *) (PD)))
fp@77: #define EC_READ_S8(PD) ((int8_t)  *((uint8_t *) (PD)))
fp@74: 
fp@77: #define EC_READ_U16(PD) ((uint16_t) le16_to_cpup((void *) (PD)))
fp@77: #define EC_READ_S16(PD) ((int16_t)  le16_to_cpup((void *) (PD)))
fp@74: 
fp@77: #define EC_READ_U32(PD) ((uint32_t) le32_to_cpup((void *) (PD)))
fp@77: #define EC_READ_S32(PD) ((int32_t)  le32_to_cpup((void *) (PD)))
fp@67: 
fp@67: /*****************************************************************************/
fp@67: 
fp@74: // Write macros
fp@74: 
fp@74: #define EC_WRITE_U8(PD, VAL) \
fp@59:     do { \
fp@74:         *((uint8_t *)(PD)) = ((uint8_t) (VAL)); \
fp@59:     } while (0)
fp@59: 
fp@74: #define EC_WRITE_S8(PD, VAL) EC_WRITE_U8(PD, VAL)
fp@59: 
fp@74: #define EC_WRITE_U16(PD, VAL) \
fp@74:     do { \
fp@77:         *((uint16_t *) (PD)) = (uint16_t) (VAL); \
fp@77:         cpu_to_le16s(PD); \
fp@74:     } while (0)
fp@67: 
fp@74: #define EC_WRITE_S16(PD, VAL) EC_WRITE_U16(PD, VAL)
fp@67: 
fp@74: #define EC_WRITE_U32(PD, VAL) \
fp@74:     do { \
fp@77:         *((uint32_t *) (PD)) = (uint32_t) (VAL); \
fp@77:         cpu_to_le16s(PD); \
fp@74:     } while (0)
fp@66: 
fp@74: #define EC_WRITE_S32(PD, VAL) EC_WRITE_U32(PD, VAL)
fp@67: 
fp@66: /*****************************************************************************/
fp@66: 
fp@59: /* Emacs-Konfiguration
fp@59: ;;; Local Variables: ***
fp@59: ;;; c-basic-offset:4 ***
fp@59: ;;; End: ***
fp@59: */