Capacitive_TP_I2C.c
16.9 KB
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/*****************************************************************************
* Copyright Statement:
* --------------------
* This software is protected by Copyright and the information contained
* herein is confidential. The software may not be copied and the information
* contained herein may not be used or disclosed except with the written
* permission of MediaTek Inc. (C) 2005
*
* BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
* RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
* AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
* NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
* SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
* SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
* THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
* NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
* SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
*
* BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
* LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
* AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
* OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY BUYER TO
* MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
*
* THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
* WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
* LAWS PRINCIPLES. ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING THEREOF AND
* RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN FRANCISCO, CA, UNDER
* THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
*
*****************************************************************************/
/*****************************************************************************
*
* Filename:
* ---------
* Capacitive_TP_ITE_7250AFN.c
*
*
* Description:
* ------------
* Capacitive Touch Panel I2C read/write Driver
*
* Author:
* -------
* -------
*
*============================================================================
* HISTORY
* Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
*------------------------------------------------------------------------------
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* Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
*============================================================================
*****************************************************************************/
#ifdef __CUST_NEW__
#include "kal_release.h"
#include "dcl.h"
#include "Capacitive_TP_I2C.h"
#include "us_timer.h" /* For ust_get_current_time() API*/
kal_bool ctp_i2c_configure_done = KAL_FALSE;
extern const char gpio_ctp_i2c_sda_pin;
extern const char gpio_ctp_i2c_scl_pin;
extern kal_uint32 CTP_DELAY_TIME;
DCL_HANDLE ctp_i2c_handle;
DCL_HANDLE ctp_pmu_handle;
static DCL_HANDLE sda_handle, scl_handle;
//#define CTP_I2C_DELAY \
//{\
// volatile int count=0;\
// for(;count<CTP_DELAY_TIME;count++);\
//}
#define CTP_I2C_DELAY ctp_i2c_udelay(CTP_DELAY_TIME);
void ctp_i2c_udelay(kal_uint32 delay)
{
kal_uint32 ust = 0, ust1 = 0; //ust_get_current_time
kal_uint32 count = 0;
kal_uint32 break_count = 0;
if(delay > 4615) //longer than 1 tick
{
kal_sleep_task(delay/4615);
delay = delay%4615;
}
ust = ust_get_current_time();
do{
ust1 = ust_get_current_time();
if(ust1 != ust)
count++;
else
break_count++;
ust = ust1;
}while((count < delay) && (break_count < 0xFFFFFF));
}
void ctp_i2c_configure(kal_uint32 slave_addr, kal_uint32 speed)
{
I2C_CONFIG_T cfg;
if(gpio_ctp_i2c_sda_pin == 0xFF) // HW I2C
{
if(!ctp_i2c_configure_done)
{
ctp_i2c_handle = DclSI2C_Open(DCL_I2C, DCL_I2C_OWNER_TP);
}
cfg.eOwner = DCL_I2C_OWNER_TP;
cfg.fgGetHandleWait = KAL_TRUE;
cfg.u1SlaveAddress = slave_addr;
cfg.u1DelayLen = 0;
cfg.eTransactionMode = DCL_I2C_TRANSACTION_FAST_MODE;
cfg.u4FastModeSpeed = speed;
cfg.u4HSModeSpeed = 0;
cfg.fgEnableDMA = KAL_FALSE;
DclSI2C_Configure(ctp_i2c_handle, (DCL_CONFIGURE_T *)&cfg);
}
else
{
sda_handle = DclGPIO_Open(DCL_GPIO, gpio_ctp_i2c_sda_pin);
scl_handle = DclGPIO_Open(DCL_GPIO, gpio_ctp_i2c_scl_pin);
DclGPIO_Control(sda_handle, GPIO_CMD_SET_MODE_0, NULL);
DclGPIO_Control(scl_handle, GPIO_CMD_SET_MODE_0, NULL);
DclGPIO_Control(scl_handle, GPIO_CMD_SET_DIR_OUT, NULL);
}
ctp_i2c_configure_done = KAL_TRUE;
}
void ctp_i2c_power_on(kal_bool ON, kal_uint32 ldo, kal_uint32 ldo_volt)
{
PMU_CTRL_LDO_BUCK_SET_VOLTAGE_EN pmu_ldo_voltage_en;
PMU_CTRL_LDO_BUCK_SET_EN pmu_ldo_en;
if(PMU_LDO_BUCK_MAX == ldo) //don't need to turn on any LDO
return;
if (ctp_pmu_handle==DCL_HANDLE_NONE)
ctp_pmu_handle = DclPMU_Open(DCL_PMU, FLAGS_NONE);
if( ON && (ldo_volt != 0) )
{
pmu_ldo_voltage_en.mod = (PMU_LDO_BUCK_LIST_ENUM)ldo;
pmu_ldo_voltage_en.voltage = (PMU_VOLTAGE_ENUM)ldo_volt;
DclPMU_Control(ctp_pmu_handle, LDO_BUCK_SET_VOLTAGE_EN,(DCL_CTRL_DATA_T *)& pmu_ldo_voltage_en);
}
else if( ON && (ldo_volt == 0) )
{
pmu_ldo_en.mod = (PMU_LDO_BUCK_LIST_ENUM)ldo;
pmu_ldo_en.enable = KAL_TRUE;
DclPMU_Control(ctp_pmu_handle, LDO_BUCK_SET_EN,(DCL_CTRL_DATA_T *)&pmu_ldo_en);
}
else
{
pmu_ldo_en.mod = (PMU_LDO_BUCK_LIST_ENUM)ldo;
pmu_ldo_en.enable = KAL_FALSE;
DclPMU_Control(ctp_pmu_handle, LDO_BUCK_SET_EN,(DCL_CTRL_DATA_T *)&pmu_ldo_en);
}
}
// Start bit of I2C waveform
void ctp_i2c_start(void)
{
if(gpio_ctp_i2c_sda_pin == 0xFF) // HW I2C
{
}
else
{
DclGPIO_Control(scl_handle, GPIO_CMD_SET_DIR_OUT, NULL);
DclGPIO_Control(sda_handle, GPIO_CMD_WRITE_HIGH, NULL);
DclGPIO_Control(sda_handle, GPIO_CMD_SET_DIR_OUT, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_HIGH, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(sda_handle, GPIO_CMD_WRITE_LOW, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_HIGH, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(sda_handle, GPIO_CMD_WRITE_LOW, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_LOW, NULL);
CTP_I2C_DELAY;
}
}
// Stop bit of I2C waveform
void ctp_i2c_stop(void)
{
if(gpio_ctp_i2c_sda_pin == 0xFF) // HW I2C
{
}
else
{
DclGPIO_Control(scl_handle, GPIO_CMD_SET_DIR_OUT, NULL);
DclGPIO_Control(sda_handle, GPIO_CMD_WRITE_LOW, NULL);
DclGPIO_Control(sda_handle, GPIO_CMD_SET_DIR_OUT, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_HIGH, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(sda_handle, GPIO_CMD_WRITE_HIGH, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_HIGH, NULL);
CTP_I2C_DELAY;
}
}
// Send one byte from host to client
// return CTP_I2C_ACK or CTP_I2C_NAK
kal_bool ctp_i2c_send_byte(kal_uint8 ucData)
{
//kal_bool bRet;
int i;
kal_bool ret;
kal_uint8 ucMask;
DCL_STATUS status = STATUS_INVALID_OPERATION;
GPIO_CTRL_READ_T sda_read;
I2C_CTRL_CONT_WRITE_T write;
if(gpio_ctp_i2c_sda_pin == 0xFF) // HW I2C
{
if(ctp_i2c_configure_done)
{
write.pu1Data = &ucData;
write.u4DataLen = 1;
write.u4TransferNum = 1;
status = DclSI2C_Control(ctp_i2c_handle, I2C_CMD_CONT_WRITE, (DCL_CTRL_DATA_T *)&write);
}
ret = (status == STATUS_OK)?KAL_TRUE:KAL_FALSE;
}
else
{
DclGPIO_Control(sda_handle, GPIO_CMD_SET_DIR_OUT, NULL);
DclGPIO_Control(scl_handle, GPIO_CMD_SET_DIR_OUT, NULL);
for(i = 0, ucMask = 0x80; i < 8; i++, ucMask >>= 1)
{
if(ucData & ucMask)
DclGPIO_Control(sda_handle, GPIO_CMD_WRITE_HIGH, NULL);
else
DclGPIO_Control(sda_handle, GPIO_CMD_WRITE_LOW, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_HIGH, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_LOW, NULL);
CTP_I2C_DELAY;
}
DclGPIO_Control(sda_handle, GPIO_CMD_SET_DIR_IN, NULL);
DclGPIO_Control(sda_handle, GPIO_CMD_READ, (DCL_CTRL_DATA_T *)&sda_read);
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_HIGH, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_LOW, NULL);
CTP_I2C_DELAY;
ret = (sda_read.u1IOData == GPIO_IO_LOW)?(kal_bool)CTP_I2C_ACK:(kal_bool)CTP_I2C_NAK;
}
return ret;
}
// Receive one byte form client to host
kal_uint8 ctp_i2c_receive_byte(kal_bool bAck)
{
kal_uint8 ucRet = 0;
int i;
I2C_CTRL_CONT_READ_T read;
GPIO_CTRL_READ_T sda_read;
DCL_STATUS status;
if(gpio_ctp_i2c_sda_pin == 0xFF) // HW I2C
{
if(ctp_i2c_configure_done)
{
read.pu1Data = &ucRet;
read.u4DataLen = 1;
read.u4TransferNum = 1;
status = DclSI2C_Control(ctp_i2c_handle, I2C_CMD_CONT_READ, (DCL_CTRL_DATA_T *)&read);
if(status != STATUS_OK)
return 0;
}
}
else
{
#if defined(__CTP_GOODIX_GT818_TRUE_MULTIPLE__)
DclGPIO_Control(sda_handle, GPIO_CMD_SET_DIR_IN, NULL);
for(i = 7; i >= 0; i--)
{
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_HIGH, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(sda_handle, GPIO_CMD_READ, (DCL_CTRL_DATA_T *)&sda_read);
ucRet |= sda_read.u1IOData << i;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_LOW, NULL);
CTP_I2C_DELAY;
}
if(bAck == CTP_I2C_ACK)
DclGPIO_Control(sda_handle, GPIO_CMD_WRITE_LOW, NULL);
else
DclGPIO_Control(sda_handle, GPIO_CMD_WRITE_HIGH, NULL);
DclGPIO_Control(sda_handle, GPIO_CMD_SET_DIR_OUT, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_HIGH, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_LOW, NULL);
CTP_I2C_DELAY;
#else
DclGPIO_Control(sda_handle, GPIO_CMD_SET_DIR_IN, NULL);
DclGPIO_Control(scl_handle, GPIO_CMD_SET_DIR_OUT, NULL);
for(i = 7; i >= 0; i--)
{
DclGPIO_Control(sda_handle, GPIO_CMD_READ, (DCL_CTRL_DATA_T *)&sda_read);
ucRet |= sda_read.u1IOData << i;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_HIGH, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_LOW, NULL);
CTP_I2C_DELAY;
}
DclGPIO_Control(sda_handle, GPIO_CMD_SET_DIR_OUT, NULL);
if(bAck)
DclGPIO_Control(sda_handle, GPIO_CMD_WRITE_HIGH, NULL);
else
DclGPIO_Control(sda_handle, GPIO_CMD_WRITE_LOW, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_HIGH, NULL);
CTP_I2C_DELAY;
DclGPIO_Control(scl_handle, GPIO_CMD_WRITE_LOW, NULL);
CTP_I2C_DELAY;
#endif
}
return ucRet;
}
// I2C send data fuction
// return success: KAL_TRUE fail:KAL_FALSE
kal_bool ctp_i2c_send(kal_uint8 ucDeviceAddr, kal_uint8 ucBufferIndex, kal_uint8* pucData, kal_uint32 unDataLength)
{
kal_uint32 i;
kal_uint8 write_buf[9];
kal_bool bRet = KAL_TRUE;
I2C_CTRL_CONT_WRITE_T write;
DCL_STATUS status;
if(gpio_ctp_i2c_sda_pin == 0xFF) // HW I2C
{
if(ctp_i2c_configure_done)
{
write_buf[0] = ucBufferIndex;
for(i=0;i<unDataLength;i++)
{
write_buf[i+1] = *(pucData+i);
}
write.pu1Data = write_buf;
write.u4DataLen = unDataLength+1;
write.u4TransferNum = 1;
status = DclSI2C_Control(ctp_i2c_handle, I2C_CMD_CONT_WRITE, (DCL_CTRL_DATA_T *)&write);
if(status != STATUS_OK)
return KAL_FALSE;
}
}
else
{
ctp_i2c_start();
if(ctp_i2c_send_byte(ucDeviceAddr & 0xFE) == CTP_I2C_ACK)
{
if(ctp_i2c_send_byte(ucBufferIndex) == CTP_I2C_ACK)
{
for(i = 0; i < unDataLength; i++)
{
if(ctp_i2c_send_byte(pucData[i]) == CTP_I2C_NAK)
{
bRet = KAL_FALSE;
break;
}
}
}
else
{
bRet = KAL_FALSE;
}
}
else
{
bRet = KAL_FALSE;
}
ctp_i2c_stop();
}
return bRet;
}
kal_bool ctp_i2c_send_ext(kal_uint8 ucDeviceAddr, kal_uint16 ucBufferIndex, kal_uint8* pucData, kal_uint32 unDataLength)
{
kal_uint32 i;
kal_uint8 write_buf[10];
kal_bool bRet = KAL_TRUE;
I2C_CTRL_CONT_WRITE_T write;
DCL_STATUS status;
kal_uint8 addr_h = ( ucBufferIndex >> 8 )& 0xFF;
kal_uint8 addr_l = ucBufferIndex&0xFF;
kal_uint32 offset = 0;
kal_uint8 pkt_len;
if(gpio_ctp_i2c_sda_pin == 0xFF) // HW I2C
{
if(ctp_i2c_configure_done)
{
while ( offset <= unDataLength )
{
write_buf[0] = ((ucBufferIndex + offset)>>8)&0xFF;
write_buf[1] = (ucBufferIndex + offset)&0xFF;
if ( unDataLength - offset > 6 )
{
pkt_len = 6;
}
else
{
pkt_len = unDataLength - offset;
}
memcpy( &write_buf[2], &pucData[offset], pkt_len );
offset += pkt_len;
write.pu1Data = write_buf;
write.u4DataLen = pkt_len+2;
write.u4TransferNum = 1;
status = DclSI2C_Control(ctp_i2c_handle, I2C_CMD_CONT_WRITE, (DCL_CTRL_DATA_T *)&write);
if(status != STATUS_OK)
return KAL_FALSE;
if ( offset == unDataLength )
break;
}
}
}
else
{
ctp_i2c_start();
if(ctp_i2c_send_byte(ucDeviceAddr & 0xFE) == CTP_I2C_ACK)
{
if ( (ctp_i2c_send_byte(addr_h) == CTP_I2C_ACK) &&
(ctp_i2c_send_byte(addr_l) == CTP_I2C_ACK) )
{
for(i = 0; i < unDataLength; i++)
{
if(ctp_i2c_send_byte(pucData[i]) == CTP_I2C_NAK)
{
bRet = KAL_FALSE;
break;
}
}
}
else
{
bRet = KAL_FALSE;
}
}
else
{
bRet = KAL_FALSE;
}
ctp_i2c_stop();
}
return bRet;
}
// I2C receive data function
kal_bool ctp_i2c_receive(kal_uint8 ucDeviceAddr, kal_uint8 ucBufferIndex, kal_uint8* pucData, kal_uint32 unDataLength)
{
kal_uint32 i;
DCL_STATUS dcl_i2c_ret;
kal_bool bRet = KAL_TRUE;
I2C_CTRL_WRITE_AND_READE_T write_read;
if(gpio_ctp_i2c_sda_pin == 0xFF) // HW I2C
{
if(ctp_i2c_configure_done)
{
write_read.pu1InData = pucData;
write_read.u4InDataLen = unDataLength;
write_read.pu1OutData = &ucBufferIndex;
write_read.u4OutDataLen = 1;
dcl_i2c_ret = DclSI2C_Control(ctp_i2c_handle, I2C_CMD_WRITE_AND_READ, (DCL_CTRL_DATA_T *)&write_read);
if(dcl_i2c_ret != STATUS_OK)
{
bRet = KAL_FALSE;
}
}
}
else
{
ctp_i2c_start();
if(ctp_i2c_send_byte(ucDeviceAddr & 0xFE) == CTP_I2C_ACK)
{
if(ctp_i2c_send_byte(ucBufferIndex) == CTP_I2C_ACK)
{
ctp_i2c_start();
if(ctp_i2c_send_byte(ucDeviceAddr | 0x01) == CTP_I2C_ACK)
{
for(i = 0; i < unDataLength - 1; i++)
{
pucData[i] = ctp_i2c_receive_byte((kal_bool)CTP_I2C_ACK);
}
pucData[unDataLength - 1] = ctp_i2c_receive_byte((kal_bool)CTP_I2C_NAK);
}
else
{
bRet = KAL_FALSE;
}
}
else
{
bRet = KAL_FALSE;
}
}
else
{
bRet = KAL_FALSE;
}
ctp_i2c_stop();
}
return bRet;
}
// I2C receive data function
kal_bool ctp_i2c_receive_ext(kal_uint8 ucDeviceAddr, kal_uint16 ucBufferIndex, kal_uint8* pucData, kal_uint32 unDataLength)
{
kal_uint32 i;
kal_bool bRet = KAL_TRUE;
I2C_CTRL_WRITE_AND_READE_T write_read;
kal_uint8 write_buf[2];
kal_uint16 reg_addr = ucBufferIndex;
kal_uint32 offset = 0;
kal_uint8 pkt_len;
kal_uint8 addr_h = ( ucBufferIndex >> 8 )& 0xFF;
kal_uint8 addr_l = ucBufferIndex&0xFF;
if(gpio_ctp_i2c_sda_pin == 0xFF) // HW I2C
{
if(ctp_i2c_configure_done)
{
while ( offset < unDataLength )
{
write_buf[0] = ( reg_addr >> 8 )& 0xFF;
write_buf[1] = reg_addr&0xFF;
if ( unDataLength - offset > 8 )
{
pkt_len = 8;
}
else
{
pkt_len = unDataLength - offset;
}
write_read.pu1InData = pucData + offset;
write_read.u4InDataLen = pkt_len;
write_read.pu1OutData = write_buf;
write_read.u4OutDataLen = 2;
DclSI2C_Control(ctp_i2c_handle, I2C_CMD_WRITE_AND_READ, (DCL_CTRL_DATA_T *)&write_read);
offset += pkt_len;
reg_addr = ucBufferIndex + offset;
}
}
}
else
{
ctp_i2c_start();
if(ctp_i2c_send_byte(ucDeviceAddr & 0xFE) == CTP_I2C_ACK)
{
if ( (ctp_i2c_send_byte(addr_h) == CTP_I2C_ACK) &&
(ctp_i2c_send_byte(addr_l) == CTP_I2C_ACK) )
{
ctp_i2c_start();
if(ctp_i2c_send_byte(ucDeviceAddr | 0x01) == CTP_I2C_ACK)
{
for(i = 0; i < unDataLength - 1; i++)
{
pucData[i] = ctp_i2c_receive_byte((kal_bool)CTP_I2C_ACK);
}
pucData[unDataLength - 1] = ctp_i2c_receive_byte((kal_bool)CTP_I2C_NAK);
}
else
{
bRet = KAL_FALSE;
}
}
else
{
bRet = KAL_FALSE;
}
}
else
{
bRet = KAL_FALSE;
}
ctp_i2c_stop();
}
return bRet;
}
#endif //#ifdef __CUST_NEW__