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/*
* Copyright (c) 2022 OpenLuat & AirM2M
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "user.h"
#define SAMPLE_PER_CH (15)
#if 0
typedef struct
{
uint32_t Data[SAMPLE_PER_CH];
}Channel_DataStruct;
typedef struct
{
Channel_DataStruct ChannelData[ADC_CHANNEL_MAX];
uint32_t Ctrl;
uint8_t Enable[ADC_CHANNEL_MAX];
uint8_t CurChannel;
}ADC_CtrlStruct;
static ADC_CtrlStruct prvADC;
static void __FUNC_IN_RAM__ ADC_IrqHandle(int32_t IrqLine, void *pData)
{
int i;
uint8_t NextChannel;
ADC0->ADC_CR1 = 0;
{
for(i = 0; i < SAMPLE_PER_CH; i++)
{
prvADC.ChannelData[prvADC.CurChannel].Data[i] = ADC0->ADC_DATA & 0x0fff;
}
if (prvADC.CurChannel == (ADC_CHANNEL_MAX - 1))
{
NextChannel = 0;
}
else
{
NextChannel = prvADC.CurChannel + 1;
}
prvADC.CurChannel = 0;
for(i = NextChannel; i < ADC_CHANNEL_MAX; i++)
{
if (prvADC.Enable[i])
{
prvADC.CurChannel = i;
break;
}
}
ADC0->ADC_FIFO = 3;
ADC0->ADC_CR1 = 0x060 | prvADC.Ctrl | prvADC.CurChannel;
}
}
void ADC_GlobalInit(void)
{
int i;
// for(i = 0; i < ADC_CHANNEL_MAX;i++)
// {
// prvADC.Enable[i] = 1;
// }
prvADC.Enable[0] = 1;
prvADC.Ctrl = 2 << 3;
ADC0->ADC_FIFO_THR = SAMPLE_PER_CH - 1;
ADC0->ADC_FIFO = 3;
ADC0->ADC_CR2 &= ~(1 << 14);
ADC0->ADC_CR2 &= ~(1 << 13);
ISR_SetHandler(ADC0_IRQn, ADC_IrqHandle, NULL);
#ifdef __BUILD_OS___
ISR_SetPriority(ADC0_IRQn, configLIBRARY_LOWEST_INTERRUPT_PRIORITY);
#else
ISR_SetPriority(ADC0_IRQn, 6);
#endif
ISR_OnOff(ADC0_IRQn, 1);
ADC0->ADC_CR1 = 0x060 | prvADC.Ctrl | prvADC.CurChannel;
}
void ADC_SetSpeed(uint8_t Level)
{
prvADC.Ctrl = Level << 3;
}
void ADC_IntelResistance(uint8_t OnOff)
{
if (OnOff)
{
ADC0->ADC_CR2 |= (1 << 13);
}
else
{
ADC0->ADC_CR2 &= ~(1 << 13);
}
}
void ADC_ChannelOnOff(uint8_t Channel, uint8_t OnOff)
{
if (!Channel) return;
int i;
ISR_OnOff(ADC0_IRQn, 0);
prvADC.Enable[Channel] = OnOff;
ISR_OnOff(ADC0_IRQn, 1);
}
uint32_t ADC_GetChannelValue(uint8_t Channel)
{
uint32_t total= 0;
uint32_t value = 0;
uint32_t max = 0;
uint32_t min = 0xffff;
uint32_t i;
uint32_t Data[SAMPLE_PER_CH];
ISR_OnOff(ADC0_IRQn, 0);
memcpy(&Data[10], &prvADC.ChannelData[Channel].Data[10], (SAMPLE_PER_CH - 10) * sizeof(uint32_t));
ISR_OnOff(ADC0_IRQn, 1);
for (i = 10; i < SAMPLE_PER_CH; i++)
{
// DBG("%d,%d", i, Data[i]);
value = Data[i];
if(max < value)
max = value;
if(min > value)
min = value;
total += value;
}
return ((total - max) -min)/(SAMPLE_PER_CH-12);
}
uint32_t ADC_GetChannelValueBlock(uint8_t Channel)
{
}
#else
typedef struct
{
uint32_t Data[SAMPLE_PER_CH];
volatile uint8_t Done;
}ADC_CtrlStruct;
static ADC_CtrlStruct prvADC;
static void ADC_IrqHandle(int32_t IrqLine, void *pData)
{
int i;
ADC0->ADC_CR1 = 0;
prvADC.Done = 1;
for(i = 0; i < SAMPLE_PER_CH; i++)
{
prvADC.Data[i] = ADC0->ADC_DATA & 0x0fff;
}
ADC0->ADC_FIFO = 3;
}
void ADC_GlobalInit(void)
{
int i;
ADC0->ADC_FIFO_THR = SAMPLE_PER_CH - 1;
ADC0->ADC_FIFO = 3;
ADC0->ADC_CR2 &= ~(1 << 14);
ADC0->ADC_CR2 &= ~(1 << 13);
ADC0->ADC_CR1 = 0;
ISR_SetHandler(ADC0_IRQn, ADC_IrqHandle, NULL);
#ifdef __BUILD_OS___
ISR_SetPriority(ADC0_IRQn, configLIBRARY_LOWEST_INTERRUPT_PRIORITY - 1);
#else
ISR_SetPriority(ADC0_IRQn, 6);
#endif
ISR_OnOff(ADC0_IRQn, 0);
}
void ADC_IntelResistance(uint8_t OnOff)
{
if (OnOff)
{
ADC0->ADC_CR2 |= (1 << 13);
}
else
{
ADC0->ADC_CR2 &= ~(1 << 13);
}
}
void ADC_ChannelOnOff(uint8_t Channel, uint8_t OnOff)
{
}
uint32_t ADC_GetChannelValue(uint8_t Channel)
{
uint32_t total= 0;
uint32_t value = 0;
uint32_t max = 0;
uint32_t min = 0x0fff;
uint32_t i;
ADC0->ADC_FIFO = 3;
prvADC.Done = 0;
ISR_OnOff(ADC0_IRQn, 1);
ADC0->ADC_CR1 = 0x060 | Channel;
while(!prvADC.Done){;}
for (i = 10; i < SAMPLE_PER_CH; i++)
{
// DBG("%d,%d", i, prvADC.Data[i]);
value = prvADC.Data[i];
if(max < value)
max = value;
if(min > value)
min = value;
total += value;
}
ADC0->ADC_CR1 = 0;
return ((total - max) -min)/(SAMPLE_PER_CH-12);
}
#endif
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