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rtl00TstMinAmebaV35a/component/common/mbed/targets/hal/rtl8195a/i2c_api.c

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2016-09-23 04:21:45 +00:00
/* mbed Microcontroller Library
*******************************************************************************
* Copyright (c) 2014, Realtek Semiconductor Corp.
* All rights reserved.
*
* This module is a confidential and proprietary property of RealTek and
* possession or use of this module requires written permission of RealTek.
*******************************************************************************
*/
//#include "mbed_assert.h"
#include "objects.h"
#include "PinNames.h"
//#include <osdep_api.h>
#include "hal_i2c.h"
#include "i2c_api.h"
#include "ex_api.h"
#if CONFIG_I2C_EN
//#include "cmsis.h"
#include "pinmap.h"
static const PinMap PinMap_I2C_SDA[] = {
{PD_4, RTL_PIN_PERI(I2C0, 0, S0), RTL_PIN_FUNC(I2C0, S0)},
{PH_1, RTL_PIN_PERI(I2C0, 0, S1), RTL_PIN_FUNC(I2C0, S1)},
{PC_8, RTL_PIN_PERI(I2C0, 0, S2), RTL_PIN_FUNC(I2C0, S2)},
{PE_7, RTL_PIN_PERI(I2C0, 0, S3), RTL_PIN_FUNC(I2C0, S3)},
{PC_4, RTL_PIN_PERI(I2C1, 1, S0), RTL_PIN_FUNC(I2C1, S0)},
{PH_3, RTL_PIN_PERI(I2C1, 1, S1), RTL_PIN_FUNC(I2C1, S1)},
{PD_7, RTL_PIN_PERI(I2C1, 1, S2), RTL_PIN_FUNC(I2C1, S2)},
{PB_7, RTL_PIN_PERI(I2C2, 2, S0), RTL_PIN_FUNC(I2C2, S0)},
{PE_1, RTL_PIN_PERI(I2C2, 2, S1), RTL_PIN_FUNC(I2C2, S1)},
{PC_7, RTL_PIN_PERI(I2C2, 2, S2), RTL_PIN_FUNC(I2C2, S2)},
{PB_3, RTL_PIN_PERI(I2C3, 3, S0), RTL_PIN_FUNC(I2C3, S0)},
{PE_3, RTL_PIN_PERI(I2C3, 3, S1), RTL_PIN_FUNC(I2C3, S1)},
{PE_5, RTL_PIN_PERI(I2C3, 3, S2), RTL_PIN_FUNC(I2C3, S2)},
{PD_9, RTL_PIN_PERI(I2C3, 3, S3), RTL_PIN_FUNC(I2C3, S3)},
{NC, NC, 0}
};
static const PinMap PinMap_I2C_SCL[] = {
{PD_5, RTL_PIN_PERI(I2C0, 0, S0), RTL_PIN_FUNC(I2C0, S0)},
{PH_0, RTL_PIN_PERI(I2C0, 0, S1), RTL_PIN_FUNC(I2C0, S1)},
{PC_9, RTL_PIN_PERI(I2C0, 0, S2), RTL_PIN_FUNC(I2C0, S2)},
{PE_6, RTL_PIN_PERI(I2C0, 0, S3), RTL_PIN_FUNC(I2C0, S3)},
{PC_5, RTL_PIN_PERI(I2C1, 1, S0), RTL_PIN_FUNC(I2C1, S0)},
{PH_2, RTL_PIN_PERI(I2C1, 1, S1), RTL_PIN_FUNC(I2C1, S1)},
{PD_6, RTL_PIN_PERI(I2C1, 1, S2), RTL_PIN_FUNC(I2C1, S2)},
{PB_6, RTL_PIN_PERI(I2C2, 2, S0), RTL_PIN_FUNC(I2C2, S0)},
{PE_0, RTL_PIN_PERI(I2C2, 2, S1), RTL_PIN_FUNC(I2C2, S1)},
{PC_6, RTL_PIN_PERI(I2C2, 2, S2), RTL_PIN_FUNC(I2C2, S2)},
{PB_2, RTL_PIN_PERI(I2C3, 3, S0), RTL_PIN_FUNC(I2C3, S0)},
{PE_2, RTL_PIN_PERI(I2C3, 3, S1), RTL_PIN_FUNC(I2C3, S1)},
{PE_4, RTL_PIN_PERI(I2C3, 3, S2), RTL_PIN_FUNC(I2C3, S2)},
{PD_8, RTL_PIN_PERI(I2C3, 3, S3), RTL_PIN_FUNC(I2C3, S3)},
{NC, NC, 0}
};
static uint16_t i2c_target_addr[4];
static SAL_I2C_TRANSFER_BUF i2ctxtranbuf[4];
static SAL_I2C_TRANSFER_BUF i2crxtranbuf[4];
extern u32 ConfigDebugErr;
extern u32 ConfigDebuginfo;
void i2c_init(i2c_t *obj, PinName sda, PinName scl) {
uint32_t i2c_sel;
uint32_t i2c_idx;
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_USERCB_ADPT pSalI2CUserCBAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
// Determine the I2C to use
uint32_t i2c_sda = (uint32_t)pinmap_peripheral(sda, PinMap_I2C_SDA);
uint32_t i2c_scl = (uint32_t)pinmap_peripheral(scl, PinMap_I2C_SCL);
ConfigDebugErr &= (~(_DBG_I2C_|_DBG_GDMA_));
ConfigDebugInfo&= (~(_DBG_I2C_|_DBG_GDMA_));
i2c_sel = (uint32_t)pinmap_merge(i2c_sda, i2c_scl);
i2c_idx = RTL_GET_PERI_IDX(i2c_sel);
if (unlikely(i2c_idx == NC)) {
DBG_8195A("%s: Cannot find matched UART\n", __FUNCTION__);
return;
}
//DBG_8195A("i2c_sel:%x\n",i2c_sel);
//DBG_8195A("i2c_idx:%x\n",i2c_idx);
/* Get I2C device handler */
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CUserCBAdpt = (PSAL_I2C_USERCB_ADPT)&(obj->SalI2CUserCBAdpt);
/*To assign the rest pointers*/
pSalI2CMngtAdpt->MstRDCmdCnt = 0;
pSalI2CMngtAdpt->InnerTimeOut = 2000; // inner time-out count, 2000 ms
pSalI2CMngtAdpt->pSalHndPriv = &(obj->SalI2CHndPriv);
pSalI2CMngtAdpt->pSalHndPriv->ppSalI2CHnd = (void**)&(pSalI2CMngtAdpt->pSalHndPriv);
/* To assign the default (ROM) HAL OP initialization function */
#if defined(CONFIG_CHIP_A_CUT) || defined(CONFIG_CHIP_B_CUT) || defined(CONFIG_CHIP_C_CUT)
pSalI2CMngtAdpt->pHalOpInit = HalI2COpInit_Patch;
#elif defined(CONFIG_CHIP_E_CUT)
pSalI2CMngtAdpt->pHalOpInit = HalI2COpInit_V04;
#endif
/* To assign the default (ROM) HAL GDMA OP initialization function */
pSalI2CMngtAdpt->pHalGdmaOpInit = HalGdmaOpInit;
/* To assign the default (ROM) SAL interrupt function */
#if defined(CONFIG_CHIP_A_CUT) || defined(CONFIG_CHIP_B_CUT) || defined(CONFIG_CHIP_C_CUT)
pSalI2CMngtAdpt->pSalIrqFunc = I2CISRHandle_Patch;
#elif defined(CONFIG_CHIP_E_CUT)
pSalI2CMngtAdpt->pSalIrqFunc = I2CISRHandle_V04;
#endif
/* To assign the default (ROM) SAL DMA TX interrupt function */
pSalI2CMngtAdpt->pSalDMATxIrqFunc = I2CTXGDMAISRHandle;
/* To assign the default (ROM) SAL DMA RX interrupt function */
pSalI2CMngtAdpt->pSalDMARxIrqFunc = I2CRXGDMAISRHandle;
pSalI2CMngtAdpt->pHalInitDat = &(obj->HalI2CInitData);
pSalI2CMngtAdpt->pHalOp = &(obj->HalI2COp);
pSalI2CMngtAdpt->pIrqHnd = &(obj->I2CIrqHandleDat);
pSalI2CMngtAdpt->pHalTxGdmaAdp = &(obj->HalI2CTxGdmaAdpt);
pSalI2CMngtAdpt->pHalRxGdmaAdp = &(obj->HalI2CRxGdmaAdpt);
pSalI2CMngtAdpt->pHalGdmaOp = &(obj->HalI2CGdmaOp);
pSalI2CMngtAdpt->pIrqTxGdmaHnd = &(obj->I2CTxGdmaIrqHandleDat);
pSalI2CMngtAdpt->pIrqRxGdmaHnd = &(obj->I2CRxGdmaIrqHandleDat);
pSalI2CMngtAdpt->pUserCB = &(obj->SalI2CUserCB);
pSalI2CMngtAdpt->pDMAConf = &(obj->SalI2CDmaUserDef);
/* Assign the private SAL handle to public SAL handle */
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
/* Assign the internal HAL initial data pointer to the SAL handle */
pSalI2CHND->pInitDat = pSalI2CMngtAdpt->pHalInitDat;
/* Assign the internal user callback pointer to the SAL handle */
pSalI2CHND->pUserCB = pSalI2CMngtAdpt->pUserCB;
/* Assign the internal user define DMA configuration to the SAL handle */
pSalI2CHND->pDMAConf = pSalI2CMngtAdpt->pDMAConf;
/*To assign user callback pointers*/
pSalI2CMngtAdpt->pUserCB->pTXCB = pSalI2CUserCBAdpt;
pSalI2CMngtAdpt->pUserCB->pTXCCB = (pSalI2CUserCBAdpt+1);
pSalI2CMngtAdpt->pUserCB->pRXCB = (pSalI2CUserCBAdpt+2);
pSalI2CMngtAdpt->pUserCB->pRXCCB = (pSalI2CUserCBAdpt+3);
pSalI2CMngtAdpt->pUserCB->pRDREQCB = (pSalI2CUserCBAdpt+4);
pSalI2CMngtAdpt->pUserCB->pERRCB = (pSalI2CUserCBAdpt+5);
pSalI2CMngtAdpt->pUserCB->pDMATXCB = (pSalI2CUserCBAdpt+6);
pSalI2CMngtAdpt->pUserCB->pDMATXCCB = (pSalI2CUserCBAdpt+7);
pSalI2CMngtAdpt->pUserCB->pDMARXCB = (pSalI2CUserCBAdpt+8);
pSalI2CMngtAdpt->pUserCB->pDMARXCCB = (pSalI2CUserCBAdpt+9);
pSalI2CMngtAdpt->pUserCB->pGENCALLCB= (pSalI2CUserCBAdpt+10);
/* Set I2C Device Number */
pSalI2CHND->DevNum = i2c_idx;
/* Load I2C default value */
RtkI2CLoadDefault(pSalI2CHND);
/* Assign I2C Pin Mux */
pSalI2CHND->PinMux = RTL_GET_PERI_SEL(i2c_sel);
pSalI2CHND->OpType = I2C_INTR_TYPE;
pSalI2CHND->I2CMaster = I2C_MASTER_MODE;
pSalI2CHND->I2CSpdMod = I2C_SS_MODE;
pSalI2CHND->I2CClk = 100;
pSalI2CHND->I2CAckAddr = 0;
pSalI2CHND->TimeOut = 300;
pSalI2CHND->AddRtyTimeOut = 3000;
pSalI2CHND->I2CExd |= (I2C_EXD_MTR_ADDR_RTY);
pSalI2CMngtAdpt->InnerTimeOut = pSalI2CHND->TimeOut;
/* Deinit I2C first */
//i2c_reset(obj);
/* Init I2C now */
RtkI2CInitForPS(pSalI2CHND);
}
void i2c_frequency(i2c_t *obj, int hz) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
uint16_t i2c_default_clk = (uint16_t) pSalI2CHND->I2CClk;
uint16_t i2c_user_clk = (uint16_t) (hz/1000);
if (i2c_default_clk != i2c_user_clk) {
/* Deinit I2C first */
i2c_reset(obj);
if (i2c_user_clk <= 100) {
pSalI2CHND->I2CSpdMod = I2C_SS_MODE;
}
else if ((i2c_user_clk > 100) && (i2c_user_clk <= 400)) {
pSalI2CHND->I2CSpdMod = I2C_FS_MODE;
}
else if (i2c_user_clk > 400) {
pSalI2CHND->I2CSpdMod = I2C_HS_MODE;
}
else {
pSalI2CHND->I2CSpdMod = I2C_SS_MODE;
}
/* Load the user defined I2C clock */
pSalI2CHND->I2CClk = i2c_user_clk;
/* Init I2C now */
RtkI2CInitForPS(pSalI2CHND);
}
}
inline int i2c_start(i2c_t *obj) {
return 0;
}
inline int i2c_stop(i2c_t *obj) {
return 0;
}
extern u32
HalDelayUs(
IN u32 us
);
int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
u32 I2CInTOTcnt = 0;
u32 InTimeoutCount = 0;
u32 InStartCount = 0;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
if (i2c_target_addr[pSalI2CHND->DevNum] != address) {
/* Deinit I2C first */
i2c_reset(obj);
/* Load the user defined I2C target slave address */
i2c_target_addr[pSalI2CHND->DevNum] = address;
pSalI2CHND->I2CAckAddr = address;
/* Init I2C now */
RtkI2CInitForPS(pSalI2CHND);
}
/* Check if the it's the last byte or not */
pSalI2CHND->I2CExd &= (~I2C_EXD_MTR_HOLD_BUS);
if (!stop) {
pSalI2CHND->I2CExd |= I2C_EXD_MTR_HOLD_BUS;
}
pSalI2CHND->pRXBuf = &i2crxtranbuf[pSalI2CHND->DevNum];
pSalI2CHND->pRXBuf->DataLen = length;
pSalI2CHND->pRXBuf->TargetAddr= pSalI2CHND->I2CAckAddr;
pSalI2CHND->pRXBuf->RegAddr = 0;
pSalI2CHND->pRXBuf->pDataBuf = (u8 *)data;
if (RtkI2CReceive(pSalI2CHND) != HAL_OK) {
length = length - pSalI2CHND->pRXBuf->DataLen;
return ((int)length);
}
else {
//DBG_8195A(">\n");
/* Calculate user time out parameters */
I2CInTOTcnt = 300;
if ((I2CInTOTcnt != 0) && (I2CInTOTcnt != I2C_TIMEOOUT_ENDLESS)) {
InTimeoutCount = (I2CInTOTcnt*1000/TIMER_TICK_US);
InStartCount = HalTimerOp.HalTimerReadCount(1);
}
while((pSalI2CHND->DevSts != I2C_STS_IDLE) &&
(pSalI2CHND->DevSts != I2C_STS_ERROR) &&
(pSalI2CHND->DevSts != I2C_STS_TIMEOUT)) {
/* Time-Out check */
if (InTimeoutCount > 0) {
if (HAL_TIMEOUT == I2CIsTimeout(InStartCount, InTimeoutCount)) {
pSalI2CHND->DevSts = I2C_STS_TIMEOUT;
pSalI2CHND->ErrType = I2C_ERR_RX_ADD_TO;
/* DeInit I2C, Init I2C */
//RtkI2CDeInit(pSalI2CHND);
//HalDelayUs(1000);
//RtkI2CInit(pSalI2CHND);
return ((int)(length));
}
}
else {
if (I2CInTOTcnt == 0) {
pSalI2CHND->DevSts = I2C_STS_TIMEOUT;
pSalI2CHND->ErrType = I2C_ERR_RX_ADD_TO;
/* DeInit I2C, Init I2C */
//RtkI2CDeInit(pSalI2CHND);
//RtkI2CInit(pSalI2CHND);
return ((int)(length));
}
}
}
//DBG_8195A("<\n");
if (pSalI2CHND->DevSts != I2C_STS_TIMEOUT)
return ((int)(length - pSalI2CHND->pRXBuf->DataLen));
else
return ((int)(length));
}
}
int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
u32 I2CInTOTcnt = 0;
u32 InTimeoutCount = 0;
u32 InStartCount = 0;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
if (i2c_target_addr[pSalI2CHND->DevNum] != address) {
/* Deinit I2C first */
i2c_reset(obj);
/* Load the user defined I2C target slave address */
i2c_target_addr[pSalI2CHND->DevNum] = address;
pSalI2CHND->I2CAckAddr = address;
/* Init I2C now */
RtkI2CInitForPS(pSalI2CHND);
}
/* Check if the it's the last byte or not */
pSalI2CHND->I2CExd &= (~I2C_EXD_MTR_HOLD_BUS);
if (!stop) {
pSalI2CHND->I2CExd |= I2C_EXD_MTR_HOLD_BUS;
}
pSalI2CHND->pTXBuf = &i2ctxtranbuf[pSalI2CHND->DevNum];
pSalI2CHND->pTXBuf->DataLen = length;
pSalI2CHND->pTXBuf->TargetAddr= pSalI2CHND->I2CAckAddr;
pSalI2CHND->pTXBuf->RegAddr = 0;
pSalI2CHND->pTXBuf->pDataBuf = (u8 *)data;
if (RtkI2CSend(pSalI2CHND) != HAL_OK) {
length = length - pSalI2CHND->pTXBuf->DataLen;
return ((int)length);
}
else {
//DBG_8195A("(\n");
/* Calculate user time out parameters */
I2CInTOTcnt = 300;
if ((I2CInTOTcnt != 0) && (I2CInTOTcnt != I2C_TIMEOOUT_ENDLESS)) {
InTimeoutCount = (I2CInTOTcnt*1000/TIMER_TICK_US);
InStartCount = HalTimerOp.HalTimerReadCount(1);
}
while((pSalI2CHND->DevSts != I2C_STS_IDLE) &&
(pSalI2CHND->DevSts != I2C_STS_ERROR) &&
(pSalI2CHND->DevSts != I2C_STS_TIMEOUT)) {
/* Time-Out check */
if (InTimeoutCount > 0) {
if (HAL_TIMEOUT == I2CIsTimeout(InStartCount, InTimeoutCount)) {
pSalI2CHND->DevSts = I2C_STS_TIMEOUT;
pSalI2CHND->ErrType = I2C_ERR_TX_ADD_TO;
/* DeInit I2C, Init I2C */
//RtkI2CDeInit(pSalI2CHND);
//RtkI2CInit(pSalI2CHND);
return ((int)(length));
}
}
else {
if (I2CInTOTcnt == 0) {
pSalI2CHND->DevSts = I2C_STS_TIMEOUT;
pSalI2CHND->ErrType = I2C_ERR_TX_ADD_TO;
/* DeInit I2C, Init I2C */
//RtkI2CDeInit(pSalI2CHND);
//RtkI2CInit(pSalI2CHND);
return ((int)(length));
}
}
}
if (pSalI2CHND->DevSts != I2C_STS_TIMEOUT)
return ((int)(length - pSalI2CHND->pTXBuf->DataLen));
else
return ((int)(length));
}
}
int i2c_byte_read(i2c_t *obj, int last) {
uint8_t i2cdatlocal;
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
/* Check if the it's the last byte or not */
pSalI2CHND->I2CExd &= (~I2C_EXD_MTR_HOLD_BUS);
if (!last) {
pSalI2CHND->I2CExd |= I2C_EXD_MTR_HOLD_BUS;
}
pSalI2CHND->pRXBuf = &i2crxtranbuf[pSalI2CHND->DevNum];
pSalI2CHND->pRXBuf->DataLen = 1;
pSalI2CHND->pRXBuf->TargetAddr= pSalI2CHND->I2CAckAddr;
pSalI2CHND->pRXBuf->RegAddr = 0;
pSalI2CHND->pRXBuf->pDataBuf = &i2cdatlocal;
RtkI2CReceive(pSalI2CHND);
return (int)i2cdatlocal;
}
int i2c_byte_write(i2c_t *obj, int data) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
pSalI2CHND->I2CExd &= (~I2C_EXD_MTR_HOLD_BUS);
pSalI2CHND->I2CExd |= I2C_EXD_MTR_HOLD_BUS;
pSalI2CHND->pTXBuf = &i2ctxtranbuf[pSalI2CHND->DevNum];
pSalI2CHND->pTXBuf->DataLen = 1;
pSalI2CHND->pTXBuf->TargetAddr= pSalI2CHND->I2CAckAddr;
pSalI2CHND->pTXBuf->RegAddr = 0;
pSalI2CHND->pTXBuf->pDataBuf = (unsigned char*)&data;
if (RtkI2CSend(pSalI2CHND) != HAL_OK) {
return 0;
}
return 1;
}
void i2c_reset(i2c_t *obj) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
/* Deinit I2C directly */
RtkI2CDeInitForPS(pSalI2CHND);
}
void i2c_restart_enable(i2c_t *obj) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
uint32_t i2clocaltmp;
uint8_t i2cen;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
i2cen = pSalI2CHND->pInitDat->I2CEn;
if (i2cen == I2C_ENABLE) {
pSalI2CHND->pInitDat->I2CEn = I2C_DISABLE;
pSalI2CMngtAdpt->pHalOp->HalI2CEnable(pSalI2CHND->pInitDat);
}
i2clocaltmp = HalI2CRead32(pSalI2CHND->DevNum, REG_DW_I2C_IC_CON);
i2clocaltmp |= BIT_IC_CON_IC_RESTART_EN;
HalI2CWrite32(pSalI2CHND->DevNum, REG_DW_I2C_IC_CON, i2clocaltmp);
if (i2cen == I2C_ENABLE) {
pSalI2CHND->pInitDat->I2CEn = I2C_ENABLE;
pSalI2CMngtAdpt->pHalOp->HalI2CEnable(pSalI2CHND->pInitDat);
}
pSalI2CHND->pInitDat->I2CReSTR = I2C_ENABLE;
}
void i2c_restart_disable(i2c_t *obj) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
uint32_t i2clocaltmp;
uint8_t i2cen;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
i2cen = pSalI2CHND->pInitDat->I2CEn;
if (i2cen == I2C_ENABLE) {
pSalI2CHND->pInitDat->I2CEn = I2C_DISABLE;
pSalI2CMngtAdpt->pHalOp->HalI2CEnable(pSalI2CHND->pInitDat);
}
i2clocaltmp = HalI2CRead32(pSalI2CHND->DevNum, REG_DW_I2C_IC_CON);
i2clocaltmp &= (~BIT_IC_CON_IC_RESTART_EN);
HalI2CWrite32(pSalI2CHND->DevNum, REG_DW_I2C_IC_CON, i2clocaltmp);
if (i2cen == I2C_ENABLE) {
pSalI2CHND->pInitDat->I2CEn = I2C_ENABLE;
pSalI2CMngtAdpt->pHalOp->HalI2CEnable(pSalI2CHND->pInitDat);
}
pSalI2CHND->pInitDat->I2CReSTR = I2C_DISABLE;
}
void i2c_set_user_callback(i2c_t *obj, I2CCallback i2ccb, void(*i2c_callback)(void *)) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
if ((i2ccb >= I2C_TX_COMPLETE) && (i2ccb <= I2C_ERR_OCCURRED)) {
switch (i2ccb) {
case I2C_TX_COMPLETE:
pSalI2CHND->pUserCB->pTXCCB->USERCB = i2c_callback;
break;
case I2C_RX_COMPLETE:
pSalI2CHND->pUserCB->pRXCCB->USERCB = i2c_callback;
break;
case I2C_RD_REQ_COMMAND:
pSalI2CHND->pUserCB->pRDREQCB->USERCB = i2c_callback;
break;
case I2C_ERR_OCCURRED:
pSalI2CHND->pUserCB->pERRCB->USERCB = i2c_callback;
break;
default:
break;
}
}
}
void i2c_clear_user_callback(i2c_t *obj, I2CCallback i2ccb) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
if ((i2ccb >= I2C_TX_COMPLETE) && (i2ccb <= I2C_ERR_OCCURRED)) {
switch (i2ccb) {
case I2C_TX_COMPLETE:
pSalI2CHND->pUserCB->pTXCCB = NULL;
break;
case I2C_RX_COMPLETE:
pSalI2CHND->pUserCB->pRXCCB = NULL;
break;
case I2C_ERR_OCCURRED:
pSalI2CHND->pUserCB->pERRCB = NULL;
break;
default:
break;
}
}
}
int i2c_enable_control(i2c_t *obj, int enable) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
pSalI2CHND->pInitDat->I2CEn = enable;
pSalI2CMngtAdpt->pHalOp->HalI2CEnable(pSalI2CHND->pInitDat);
}
#if DEVICE_I2CSLAVE
void i2c_slave_address(i2c_t *obj, int idx, uint32_t address, uint32_t mask) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
uint16_t i2c_default_addr = (uint16_t) pSalI2CHND->I2CAckAddr;
uint16_t i2c_user_addr = (uint16_t) address;
if (i2c_default_addr != i2c_user_addr) {
/* Deinit I2C first */
i2c_reset(obj);
/* Load the user defined I2C clock */
pSalI2CHND->I2CAckAddr = i2c_user_addr;
/* Init I2C now */
RtkI2CInitForPS(pSalI2CHND);
}
}
void i2c_slave_mode(i2c_t *obj, int enable_slave) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
/* Deinit I2C first */
i2c_reset(obj);
/* Load the user defined I2C clock */
pSalI2CHND->I2CMaster = I2C_MASTER_MODE;
if (enable_slave)
pSalI2CHND->I2CMaster = I2C_SLAVE_MODE;
/* Init I2C now */
RtkI2CInitForPS(pSalI2CHND);
}
// See I2CSlave.h
#define NoData 0 // the slave has not been addressed
#define ReadAddressed 1 // the master has requested a read from this slave (slave = transmitter)
#define WriteGeneral 2 // the master is writing to all slave
#define WriteAddressed 3 // the master is writing to this slave (slave = receiver)
int i2c_slave_receive(i2c_t *obj) {
int i2cslvrevsts = NoData;
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
i2cslvrevsts = RtkSalI2CSts(pSalI2CHND);
return i2cslvrevsts;
}
int i2c_slave_read(i2c_t *obj, char *data, int length) {
u32 I2CInTOTcnt = 0;
u32 InTimeoutCount = 0;
u32 InStartCount = 0;
//uint8_t i2cdatlocal;
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
pSalI2CHND->pRXBuf = &i2crxtranbuf[pSalI2CHND->DevNum];
pSalI2CHND->pRXBuf->DataLen = length;
pSalI2CHND->pRXBuf->pDataBuf = (u8 *)data;
if (RtkI2CReceive(pSalI2CHND) != HAL_OK) {
return 0; //error
}
else {
/* Calculate user time out parameters */
I2CInTOTcnt = 300;
if ((I2CInTOTcnt != 0) && (I2CInTOTcnt != I2C_TIMEOOUT_ENDLESS)) {
InTimeoutCount = (I2CInTOTcnt*1000/TIMER_TICK_US);
InStartCount = HalTimerOp.HalTimerReadCount(1);
}
while((pSalI2CHND->DevSts != I2C_STS_IDLE) &&
(pSalI2CHND->DevSts != I2C_STS_ERROR) &&
(pSalI2CHND->DevSts != I2C_STS_TIMEOUT)) {
/* Time-Out check */
if (InTimeoutCount > 0) {
if (HAL_TIMEOUT == I2CIsTimeout(InStartCount, InTimeoutCount)) {
pSalI2CHND->DevSts = I2C_STS_TIMEOUT;
pSalI2CHND->ErrType = I2C_ERR_RX_ADD_TO;
return ((int)(length));
}
}
else {
if (I2CInTOTcnt == 0) {
pSalI2CHND->DevSts = I2C_STS_TIMEOUT;
pSalI2CHND->ErrType = I2C_ERR_RX_ADD_TO;
return ((int)(length));
}
}
}
if (pSalI2CHND->DevSts != I2C_STS_TIMEOUT)
return ((int)(length - pSalI2CHND->pTXBuf->DataLen));
else
return ((int)(length));
}
}
int i2c_slave_write(i2c_t *obj, const char *data, int length) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
pSalI2CHND->pTXBuf = &i2ctxtranbuf[pSalI2CHND->DevNum];
pSalI2CHND->pTXBuf->DataLen = length;
//obj->i2c->pTXBuf->TargetAddr= obj->i2c->I2CAckAddr;
//obj->i2c->pTXBuf->RegAddr = 0;
pSalI2CHND->pTXBuf->pDataBuf = (u8 *)data;
if (RtkI2CSend(pSalI2CHND) != HAL_OK) {
return 0; //error
}
return 1;
}
/** \brief Description of i2c_slave_set_for_rd_req
*
* i2c_slave_set_for_rd_req is used to set/clear i2c slave RD_REQ interrupt mask.
* If RD_REQ interrupt is set, slave could invoke read request callback when it gets
* a read command from other i2c master.
*
* \param i2c_t *obj : i2c object
* \param int set : set or clear for read request. Once it's set, i2c would invoke read request callback when a
* read command is sent to it.
* \return result
*/
int i2c_slave_set_for_rd_req(i2c_t *obj, int set) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
PHAL_I2C_INIT_DAT pHalI2CInitDat = NULL;
PHAL_I2C_OP pHalI2COP = NULL;
u32 I2CLocalTemp;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
pHalI2CInitDat = pSalI2CMngtAdpt->pHalInitDat;
pHalI2COP = pSalI2CMngtAdpt->pHalOp;
I2CLocalTemp = pHalI2COP->HalI2CReadReg(pHalI2CInitDat, REG_DW_I2C_IC_INTR_MASK);
if (set) {
I2CLocalTemp |= BIT_IC_INTR_MASK_M_RD_REQ;
} else {
I2CLocalTemp &= (~BIT_IC_INTR_MASK_M_RD_REQ);
}
pHalI2CInitDat->I2CIntrMSK = I2CLocalTemp;
pHalI2COP->HalI2CIntrCtrl(pHalI2CInitDat);
return 1;
}
/** \brief Description of i2c_slave_set_for_data_nak
*
* i2c_slave_set_for_data_nak is used to set/clear i2c slave NAK or ACK data part in transfer.
*
* \param i2c_t *obj : i2c object
* \param int set : set or clear for data NAK.
* \return result
*/
int i2c_slave_set_for_data_nak(i2c_t *obj, int set_nak) {
PSAL_I2C_MNGT_ADPT pSalI2CMngtAdpt = NULL;
PSAL_I2C_HND pSalI2CHND = NULL;
PHAL_I2C_INIT_DAT pHalI2CInitDat = NULL;
PHAL_I2C_OP pHalI2COP = NULL;
u32 I2CLocalTemp;
pSalI2CMngtAdpt = &(obj->SalI2CMngtAdpt);
pSalI2CHND = &(pSalI2CMngtAdpt->pSalHndPriv->SalI2CHndPriv);
pHalI2CInitDat = pSalI2CMngtAdpt->pHalInitDat;
pHalI2COP = pSalI2CMngtAdpt->pHalOp;
I2CLocalTemp = pHalI2COP->HalI2CReadReg(pHalI2CInitDat, REG_DW_I2C_IC_STATUS);
//if (set_nak) {
while (BIT_IC_STATUS_SLV_ACTIVITY & I2CLocalTemp) {
I2CLocalTemp = pHalI2COP->HalI2CReadReg(pHalI2CInitDat, REG_DW_I2C_IC_STATUS);
}
//}
HAL_I2C_WRITE32(pSalI2CHND->DevNum, REG_DW_I2C_IC_SLV_DATA_NACK_ONLY, set_nak);
}
#endif // CONFIG_I2C_SLAVE_EN
#endif // CONFIG_I2C_EN
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