Embedded Application Programming Interface - picmg

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* Timeout due to clock stretching | EAPI_STATUS_TIMEOUT * startNak | EAPI_STATUS_NOT_FOUND * startNak | EAPI_STATUS_NOT_FOUND * startAckNak | EAPI_STATUS_WRITE_ERROR * ReadBCnt>(RBufLen+1) | EAPI_STATUS_MORE_DATA * Common Error | Common Error Code * Else | EAPI_STATUS_SUCCESS */ EApiStatus_t EAPI_CALLTYPE EApiI2CWriteReadRaw( __IN EApiId_t Id , /* I2C Bus Id */ __IN uint8_t Addr , /* Encoded 7Bit I2C * Device Address */ __INOPT void *pWBuffer , /* Write Data pBuffer */ __IN uint32_t WriteBCnt, /* Number of Bytes to * write plus 1 */ __OUTOPT void *pRBuffer , /* Read Data pBuffer */ __IN uint32_t RBufLen , /* Data pBuffer Length */ __IN uint32_t ReadBCnt /* Number of Bytes to * Read plus 1 */ ); #define EApiI2CWriteRaw(Id, Addr, pBuffer, ByteCnt) \ EApiI2CWriteReadRaw(Id, Addr, pBuffer, ByteCnt, NULL, 0, 0) #define EApiI2CReadRaw(Id, Addr, pBuffer, BufLen, ByteCnt) \ EApiI2CWriteReadRaw(Id, Addr, NULL, 0, pBuffer, BufLen, ByteCnt) #define EAPI_I2C_ENC_10BIT_ADDR(x) EAPI_UINT32_C(((x)&0xFF)|(((x)&0x0300)1)&0x300)) #define EAPI_I2C_IS_10BIT_ADDR(x) (((x)&0xF800)==0xF000) #define EAPI_I2C_IS_7BIT_ADDR(x) (!EAPI_I2C_IS_10BIT_ADDR(x)) /* * I2C Transfer Types * Bits 31 & 30 Selects Command Type * * Transfer Type 1: * Address Format : 7Bit * Command Type : None * Data Direction : Write * StartAckAck Stop * * Transfer Type 2: * Address Format : 7Bit * Command Type : None * Data Direction : Read * StartAckNak Stop * * Transfer Type 3: * Address Format : 7Bit * Command Type : Standard * Data Direction : Write * StartAckAckAck Stop * * Transfer Type 4: * Address Format : 7Bit * Command Type : Standard * Data Direction : Read * StartAckAck * StartAckNak Stop * * Transfer Type 5: * Address Format : 7Bit * Command Type : Extended * Data Direction : Write * StartAckAckAckAck Stop * * Transfer Type 6: * Address Format : 7Bit * Command Type : Extended * Data Direction : Read * StartAckAckAck PICMG® EAPI R1.0, August 8, 2010 page 64 of 83
* StartAckNak Stop * * Transfer Type 7: * Address Format : 10Bit * Command Type : None * Data Direction : Write * StartAckAckAck Stop * * Transfer Type 8: * Address Format : 10Bit * Command Type : None * Data Direction : Read * StartAckAck * StartAckNak Stop * * Transfer Type 9: * Address Format : 10Bit * Command Type : Standard * Data Direction : Write * StartAckAckAckAck Stop * * Transfer Type 10: * Address Format : 10Bit * Command Type : Standard * Data Direction : Read * StartAckAckAck * StartAckNak Stop * * Transfer Type 11: * Address Format : 10Bit * Command Type : Extended * Data Direction : Write * StartAckAckAckAckAck Stop * * Transfer Type 12: * Address Format : 10Bit * Command Type : Extended * Data Direction : Read * StartAckAckAckAck * StartAckNak Stop * */ #define EAPI_I2C_STD_CMD EAPI_UINT32_C(0
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EAPI PICMG EAPI Revision 1.0 August
Page 3 and 4:
10.1 EApi.h .......................
Page 5 and 6:
Revision History Revision Date Acti
Page 7 and 8:
1.2 Intellectual Property The Conso
Page 9 and 10:
1.5 Special Word Usage Mandatory fe
Page 11 and 12:
Term PE PE/COFF PEG PHY PNP PNPID P
Page 13 and 14: 1.7 Applicable Documents and Standa
Page 15 and 16: 2 General COM Express specifi
Page 17 and 18: EAPI_STATUS_INITIALIZED Description
Page 19 and 20: EAPI_STATUS_WRITE_ERROR Description
Page 21 and 22: 4 EAPI Information Functions 4.1 EA
Page 23 and 24: Id Description Units/Format EAPI_ID
Page 25 and 26: 5.2.1 Description Returns current B
Page 27 and 28: 5.5.1 Description Sets the brightne
Page 29 and 30: 6.2.3 Return Status Codes Condition
Page 33 and 34: 7.2 Address Format for the I2C Bus
Page 35 and 36: Transfer Type 10: Address Format :
Page 37 and 38: 7.6.1 Description Universal functio
Page 39 and 40: 7.7.2 Parameters Id __IN See '7.1.1
Page 43 and 44: 8 WATCHDOG After the watchdog timer
Page 45 and 46: 8.2.1 Description Start the watchdo
Page 47 and 48: 9 GPIO Functions COM Express specif
Page 49 and 50: 9.2.1 Description Reads the capabil
Page 51 and 52: 9.4 EApiGPIOSetDirection 9.4.1 Desc
Page 53 and 54: 9.6 EApiGPIOSetLevel 9.6.1 Descript
Page 55 and 56: #ifndef __OUT # define __OUT /* __O
Page 57 and 58: * Use pInputs and pOutputs to corre
Page 59 and 60: ) #define EAPI_CREATE_PNPID(a, b, c
Page 61 and 62: * Condition | Return Values * -----
Page 63: */ /* IDs */ #define EAPI_ID_I2C_EX
Page 67 and 68: * Arbitration Error/Collision Error
Page 69 and 70: * * G P I O * */ /* * * +----------
Page 71 and 72: #define EAPI_GPIO_BITMASK_SELECT 1
Page 73 and 74: 10.2 EApiCOM0.h /* * *+============
Page 75 and 76: #define EAPI_COM0_ID_GPIO_GPO3 EAPI
Page 77 and 78: 12 Standard Data Formats 12.1 Compr
Page 79 and 80: 13 OS Specific Requirements 13.1 Wi
Page 81 and 82: Variable Name SVersion LVersion Man
Page 83: 15 Revision History Revision Date N
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