UHSDR/UHSDR-active-devel/mchf-eclipse/drivers/ui/encoder/ui_rotary.c

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2022-11-08 16:13:55 +01:00
/* -*- mode: c; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4; coding: utf-8 -*- */
/************************************************************************************
** **
** mcHF QRP Transceiver **
** K Atanassov - M0NKA 2014 **
** **
**---------------------------------------------------------------------------------**
** **
** File name: **
** Description: **
** Last Modified: **
** Licence: GNU GPLv3 **
************************************************************************************/
// Common
#include "uhsdr_board.h"
#include "ui_driver.h"
#include "stdlib.h"
#include "ui_rotary.h"
#include "tim.h"
// ------------------------------------------------
// Encoder 1-4 Array
__IO EncoderSelection encSel[4];
typedef struct
{
GPIO_TypeDef* pio;
uint16_t pin;
uint8_t af;
} pin_t;
typedef struct {
TIM_TypeDef* tim;
TIM_HandleTypeDef * htim;
pin_t pin[2];
} encoder_io_t;
const encoder_io_t encoderIO[4] =
{
{
.tim = TIM3,
.htim = &htim3,
.pin =
{
{ ENC_ONE_CH1_PIO, ENC_ONE_CH1, GPIO_AF2_TIM3 } ,
{ ENC_ONE_CH2_PIO, ENC_ONE_CH2, GPIO_AF2_TIM3 }
}
},
{
.tim = TIM4,
.htim = &htim4,
.pin =
{
{ ENC_TWO_CH1_PIO, ENC_TWO_CH1, GPIO_AF2_TIM4 } ,
{ ENC_TWO_CH2_PIO, ENC_TWO_CH2, GPIO_AF2_TIM4 }
}
},
{
.tim = TIM5,
.htim = &htim5,
.pin =
{
{ ENC_THREE_CH1_PIO, ENC_THREE_CH1, GPIO_AF2_TIM5 } ,
{ ENC_THREE_CH2_PIO, ENC_THREE_CH2, GPIO_AF2_TIM5 }
}
},
{
.tim = TIM8,
.htim = &htim8,
.pin =
{
{ FREQ_ENC_CH1_PIO, FREQ_ENC_CH1, GPIO_AF3_TIM8 } ,
{ FREQ_ENC_CH2_PIO, FREQ_ENC_CH2, GPIO_AF3_TIM8 }
}
}
};
void UiRotaryEncoderInit(uint8_t id)
{
const encoder_io_t* encIO = &encoderIO[id];
// Init encoder one
encSel[id].value_old = 0;
encSel[id].value_new = ENCODER_RANGE;
encSel[id].de_detent = 0;
encSel[id].tim = encIO->tim;
HAL_TIM_Encoder_Start(encIO->htim, TIM_CHANNEL_1 | TIM_CHANNEL_2);
#if 0
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
GPIO_InitStructure.Pull = GPIO_PULLUP;
for (uint32_t pinIdx = 0; pinIdx < 2; pinIdx++)
{
GPIO_InitStructure.Alternate = encIO->pin[pinIdx].af;
GPIO_InitStructure.Pin = encIO->pin[pinIdx].pin;
GPIO_Init(encIO->pin[pinIdx].pio, &GPIO_InitStructure);
}
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_TimeBaseStructure.TIM_Period = (ENCODER_RANGE/ENCODER_LOG_D) + (ENCODER_FLICKR_BAND*2); // range + 3 + 3
TIM_TimeBaseStructure.TIM_Prescaler = 0;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_EncoderInterfaceConfig(encIO->tim,TIM_EncoderMode_TI12,TIM_ICPolarity_Falling,TIM_ICPolarity_Falling);
TIM_TimeBaseInit(encIO->tim, &TIM_TimeBaseStructure);
TIM_Cmd(encIO->tim, ENABLE);
#endif
}
//*----------------------------------------------------------------------------
//* Function Name : UiRotaryFreqEncoderInit
//* Object :
//* Input Parameters :
//* Output Parameters :
//* Functions called :
//*----------------------------------------------------------------------------
void UiRotaryFreqEncoderInit(void)
{
///RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM8, ENABLE);
UiRotaryEncoderInit(ENCFREQ);
}
//*----------------------------------------------------------------------------
//* Function Name : UiRotaryEncoderOneInit
//* Object : audio gain
//* Input Parameters :
//* Output Parameters :
//* Functions called :
//*----------------------------------------------------------------------------
void UiRotaryEncoderOneInit(void)
{
///RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
UiRotaryEncoderInit(ENC1);
}
//*----------------------------------------------------------------------------
//* Function Name : UiRotaryEncoderTwoInit
//* Object : rfgain
//* Input Parameters :
//* Output Parameters :
//* Functions called :
//*----------------------------------------------------------------------------
void UiRotaryEncoderTwoInit(void)
{
///RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
UiRotaryEncoderInit(ENC2);
}
//*----------------------------------------------------------------------------
//* Function Name : UiRotaryEncoderThreeInit
//* Object :
//* Input Parameters :
//* Output Parameters :
//* Functions called :
//*----------------------------------------------------------------------------
void UiRotaryEncoderThreeInit(void)
{
///RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE);
UiRotaryEncoderInit(ENC3);
}
int UiDriverEncoderRead(const uint32_t encId)
{
bool no_change = false;
int pot_diff = 0;
int32_t delta;
if (encId < ENC_MAX)
{
encSel[encId].value_new = encSel[encId].tim->CNT;
if (encSel[encId].value_old != encSel[encId].value_new)
{
//checking for the overflow/underflow crossing
delta=encSel[encId].value_new - encSel[encId].value_old;
if(delta>(ENCODER_RANGE/2))
{
delta-=ENCODER_RANGE+1;
}
else if(delta<-(ENCODER_RANGE/2))
{
delta+=ENCODER_RANGE+1;
}
}
else
{
no_change = true;
}
// SW de-detent routine
//left this code but think that it is useless because in our encoders (detent count)=(steps per rotation). 03.06.2018 SP9BSL
if (no_change == false)
{
encSel[encId].de_detent+=abs(delta);// corrected detent behaviour
// double counts are now processed - not count lost!
if (encSel[encId].de_detent < USE_DETENTED_VALUE)
{
encSel[encId].value_old = encSel[encId].value_new; // update and skip
no_change = true;
}
else
{
encSel[encId].de_detent = 0;
}
}
// Encoder value to difference
if (no_change == false)
{
pot_diff = delta;
encSel[encId].value_old = encSel[encId].value_new;
}
}
// encoders reverse
// if(((ts.expflags1 & EXPFLAGS1_ENC123_REVERSE) && (encId < 3)) || ((ts.expflags1 & EXPFLAGS1_ENC4_REVERSE) && (encId == 3)))
if(((ts.expflags1 & EXPFLAGS1_ENC1_REVERSE) && (encId == 0)) ||
((ts.expflags2 & EXPFLAGS2_ENC2_REVERSE) && (encId == 1)) ||
((ts.expflags2 & EXPFLAGS2_ENC3_REVERSE) && (encId == 2)) ||
((ts.expflags1 & EXPFLAGS1_ENC4_REVERSE) && (encId == 3)))
{
pot_diff = -pot_diff;
}
return pot_diff;
}
//left for some time only for reference.
/*
int UiDriverEncoderRead(const uint32_t encId)
{
bool no_change = false;
int pot_diff = 0;
if (encId < ENC_MAX)
{
encSel[encId].value_new = encSel[encId].tim->CNT;
// Ignore lower value flickr
if (encSel[encId].value_new < ENCODER_FLICKR_BAND)
{
no_change = true;
}
else if (encSel[encId].value_new >
(ENCODER_RANGE / ENCODER_LOG_D) + ENCODER_FLICKR_BAND)
{
no_change = true;
}
else if (encSel[encId].value_old == encSel[encId].value_new)
{
no_change = true;
}
// SW de-detent routine
if (no_change == false)
{
encSel[encId].de_detent+=abs(encSel[encId].value_new - encSel[encId].value_old);// corrected detent behaviour
// double counts are now processed - not count lost!
if (encSel[encId].de_detent < USE_DETENTED_VALUE)
{
encSel[encId].value_old = encSel[encId].value_new; // update and skip
no_change = true;
}
else
{
encSel[encId].de_detent = 0;
}
}
// Encoder value to difference
if (no_change == false)
{
pot_diff = encSel[encId].value_new - encSel[encId].value_old;
encSel[encId].value_old = encSel[encId].value_new;
}
}
return pot_diff;
}
*/