diff options
Diffstat (limited to 'drivers/chibios/analog.c')
| -rw-r--r-- | drivers/chibios/analog.c | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/drivers/chibios/analog.c b/drivers/chibios/analog.c deleted file mode 100644 index 8c476fcac2..0000000000 --- a/drivers/chibios/analog.c +++ /dev/null @@ -1,321 +0,0 @@ -/* Copyright 2019 Drew Mills - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "quantum.h" -#include "analog.h" -#include <ch.h> -#include <hal.h> - -#if !HAL_USE_ADC -# error "You need to set HAL_USE_ADC to TRUE in your halconf.h to use the ADC." -#endif - -#if !STM32_ADC_USE_ADC1 && !STM32_ADC_USE_ADC2 && !STM32_ADC_USE_ADC3 && !STM32_ADC_USE_ADC4 -# error "You need to set one of the 'STM32_ADC_USE_ADCx' settings to TRUE in your mcuconf.h to use the ADC." -#endif - -#if STM32_ADC_DUAL_MODE -# error "STM32 ADC Dual Mode is not supported at this time." -#endif - -#if STM32_ADCV3_OVERSAMPLING -# error "STM32 ADCV3 Oversampling is not supported at this time." -#endif - -// Otherwise assume V3 -#if defined(STM32F0XX) || defined(STM32L0XX) -# define USE_ADCV1 -#elif defined(STM32F1XX) || defined(STM32F2XX) || defined(STM32F4XX) -# define USE_ADCV2 -#endif - -// BODGE to make v2 look like v1,3 and 4 -#ifdef USE_ADCV2 -# if !defined(ADC_SMPR_SMP_1P5) && defined(ADC_SAMPLE_3) -# define ADC_SMPR_SMP_1P5 ADC_SAMPLE_3 -# define ADC_SMPR_SMP_7P5 ADC_SAMPLE_15 -# define ADC_SMPR_SMP_13P5 ADC_SAMPLE_28 -# define ADC_SMPR_SMP_28P5 ADC_SAMPLE_56 -# define ADC_SMPR_SMP_41P5 ADC_SAMPLE_84 -# define ADC_SMPR_SMP_55P5 ADC_SAMPLE_112 -# define ADC_SMPR_SMP_71P5 ADC_SAMPLE_144 -# define ADC_SMPR_SMP_239P5 ADC_SAMPLE_480 -# endif - -# if !defined(ADC_SMPR_SMP_1P5) && defined(ADC_SAMPLE_1P5) -# define ADC_SMPR_SMP_1P5 ADC_SAMPLE_1P5 -# define ADC_SMPR_SMP_7P5 ADC_SAMPLE_7P5 -# define ADC_SMPR_SMP_13P5 ADC_SAMPLE_13P5 -# define ADC_SMPR_SMP_28P5 ADC_SAMPLE_28P5 -# define ADC_SMPR_SMP_41P5 ADC_SAMPLE_41P5 -# define ADC_SMPR_SMP_55P5 ADC_SAMPLE_55P5 -# define ADC_SMPR_SMP_71P5 ADC_SAMPLE_71P5 -# define ADC_SMPR_SMP_239P5 ADC_SAMPLE_239P5 -# endif - -// we still sample at 12bit, but scale down to the requested bit range -# define ADC_CFGR1_RES_12BIT 12 -# define ADC_CFGR1_RES_10BIT 10 -# define ADC_CFGR1_RES_8BIT 8 -# define ADC_CFGR1_RES_6BIT 6 -#endif - -/* User configurable ADC options */ -#ifndef ADC_COUNT -# if defined(STM32F0XX) || defined(STM32F1XX) || defined(STM32F4XX) -# define ADC_COUNT 1 -# elif defined(STM32F3XX) -# define ADC_COUNT 4 -# else -# error "ADC_COUNT has not been set for this ARM microcontroller." -# endif -#endif - -#ifndef ADC_NUM_CHANNELS -# define ADC_NUM_CHANNELS 1 -#elif ADC_NUM_CHANNELS != 1 -# error "The ARM ADC implementation currently only supports reading one channel at a time." -#endif - -#ifndef ADC_BUFFER_DEPTH -# define ADC_BUFFER_DEPTH 1 -#endif - -// For more sampling rate options, look at hal_adc_lld.h in ChibiOS -#ifndef ADC_SAMPLING_RATE -# define ADC_SAMPLING_RATE ADC_SMPR_SMP_1P5 -#endif - -// Options are 12, 10, 8, and 6 bit. -#ifndef ADC_RESOLUTION -# ifdef ADC_CFGR_RES_10BITS // ADCv3, ADCv4 -# define ADC_RESOLUTION ADC_CFGR_RES_10BITS -# else // ADCv1, ADCv5, or the bodge for ADCv2 above -# define ADC_RESOLUTION ADC_CFGR1_RES_10BIT -# endif -#endif - -static ADCConfig adcCfg = {}; -static adcsample_t sampleBuffer[ADC_NUM_CHANNELS * ADC_BUFFER_DEPTH]; - -// Initialize to max number of ADCs, set to empty object to initialize all to false. -static bool adcInitialized[ADC_COUNT] = {}; - -// TODO: add back TR handling??? -static ADCConversionGroup adcConversionGroup = { - .circular = FALSE, - .num_channels = (uint16_t)(ADC_NUM_CHANNELS), -#if defined(USE_ADCV1) - .cfgr1 = ADC_CFGR1_CONT | ADC_RESOLUTION, - .smpr = ADC_SAMPLING_RATE, -#elif defined(USE_ADCV2) -# if !defined(STM32F1XX) - .cr2 = ADC_CR2_SWSTART, // F103 seem very unhappy with, F401 seems very unhappy without... -# endif - .smpr2 = ADC_SMPR2_SMP_AN0(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN1(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN2(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN3(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN4(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN5(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN6(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN7(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN8(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN9(ADC_SAMPLING_RATE), - .smpr1 = ADC_SMPR1_SMP_AN10(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN11(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN12(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN13(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN14(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN15(ADC_SAMPLING_RATE), -#else - .cfgr = ADC_CFGR_CONT | ADC_RESOLUTION, - .smpr = {ADC_SMPR1_SMP_AN0(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN1(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN2(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN3(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN4(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN5(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN6(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN7(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN8(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN9(ADC_SAMPLING_RATE), ADC_SMPR2_SMP_AN10(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN11(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN12(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN13(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN14(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN15(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN16(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN17(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN18(ADC_SAMPLING_RATE)}, -#endif -}; - -// clang-format off -__attribute__((weak)) adc_mux pinToMux(pin_t pin) { - switch (pin) { -#if defined(STM32F0XX) - case A0: return TO_MUX( ADC_CHSELR_CHSEL0, 0 ); - case A1: return TO_MUX( ADC_CHSELR_CHSEL1, 0 ); - case A2: return TO_MUX( ADC_CHSELR_CHSEL2, 0 ); - case A3: return TO_MUX( ADC_CHSELR_CHSEL3, 0 ); - case A4: return TO_MUX( ADC_CHSELR_CHSEL4, 0 ); - case A5: return TO_MUX( ADC_CHSELR_CHSEL5, 0 ); - case A6: return TO_MUX( ADC_CHSELR_CHSEL6, 0 ); - case A7: return TO_MUX( ADC_CHSELR_CHSEL7, 0 ); - case B0: return TO_MUX( ADC_CHSELR_CHSEL8, 0 ); - case B1: return TO_MUX( ADC_CHSELR_CHSEL9, 0 ); - case C0: return TO_MUX( ADC_CHSELR_CHSEL10, 0 ); - case C1: return TO_MUX( ADC_CHSELR_CHSEL11, 0 ); - case C2: return TO_MUX( ADC_CHSELR_CHSEL12, 0 ); - case C3: return TO_MUX( ADC_CHSELR_CHSEL13, 0 ); - case C4: return TO_MUX( ADC_CHSELR_CHSEL14, 0 ); - case C5: return TO_MUX( ADC_CHSELR_CHSEL15, 0 ); -#elif defined(STM32F3XX) - case A0: return TO_MUX( ADC_CHANNEL_IN1, 0 ); - case A1: return TO_MUX( ADC_CHANNEL_IN2, 0 ); - case A2: return TO_MUX( ADC_CHANNEL_IN3, 0 ); - case A3: return TO_MUX( ADC_CHANNEL_IN4, 0 ); - case A4: return TO_MUX( ADC_CHANNEL_IN1, 1 ); - case A5: return TO_MUX( ADC_CHANNEL_IN2, 1 ); - case A6: return TO_MUX( ADC_CHANNEL_IN3, 1 ); - case A7: return TO_MUX( ADC_CHANNEL_IN4, 1 ); - case B0: return TO_MUX( ADC_CHANNEL_IN12, 2 ); - case B1: return TO_MUX( ADC_CHANNEL_IN1, 2 ); - case B2: return TO_MUX( ADC_CHANNEL_IN12, 1 ); - case B12: return TO_MUX( ADC_CHANNEL_IN3, 3 ); - case B13: return TO_MUX( ADC_CHANNEL_IN5, 2 ); - case B14: return TO_MUX( ADC_CHANNEL_IN4, 3 ); - case B15: return TO_MUX( ADC_CHANNEL_IN5, 3 ); - case C0: return TO_MUX( ADC_CHANNEL_IN6, 0 ); // Can also be ADC2 - case C1: return TO_MUX( ADC_CHANNEL_IN7, 0 ); // Can also be ADC2 - case C2: return TO_MUX( ADC_CHANNEL_IN8, 0 ); // Can also be ADC2 - case C3: return TO_MUX( ADC_CHANNEL_IN9, 0 ); // Can also be ADC2 - case C4: return TO_MUX( ADC_CHANNEL_IN5, 1 ); - case C5: return TO_MUX( ADC_CHANNEL_IN11, 1 ); - case D8: return TO_MUX( ADC_CHANNEL_IN12, 3 ); - case D9: return TO_MUX( ADC_CHANNEL_IN13, 3 ); - case D10: return TO_MUX( ADC_CHANNEL_IN7, 2 ); // Can also be ADC4 - case D11: return TO_MUX( ADC_CHANNEL_IN8, 2 ); // Can also be ADC4 - case D12: return TO_MUX( ADC_CHANNEL_IN9, 2 ); // Can also be ADC4 - case D13: return TO_MUX( ADC_CHANNEL_IN10, 2 ); // Can also be ADC4 - case D14: return TO_MUX( ADC_CHANNEL_IN11, 2 ); // Can also be ADC4 - case E7: return TO_MUX( ADC_CHANNEL_IN13, 2 ); - case E8: return TO_MUX( ADC_CHANNEL_IN6, 2 ); // Can also be ADC4 - case E9: return TO_MUX( ADC_CHANNEL_IN2, 2 ); - case E10: return TO_MUX( ADC_CHANNEL_IN14, 2 ); - case E11: return TO_MUX( ADC_CHANNEL_IN15, 2 ); - case E12: return TO_MUX( ADC_CHANNEL_IN16, 2 ); - case E13: return TO_MUX( ADC_CHANNEL_IN3, 2 ); - case E14: return TO_MUX( ADC_CHANNEL_IN1, 3 ); - case E15: return TO_MUX( ADC_CHANNEL_IN2, 3 ); - case F2: return TO_MUX( ADC_CHANNEL_IN10, 0 ); // Can also be ADC2 - case F4: return TO_MUX( ADC_CHANNEL_IN5, 0 ); -#elif defined(STM32F4XX) - case A0: return TO_MUX( ADC_CHANNEL_IN0, 0 ); - case A1: return TO_MUX( ADC_CHANNEL_IN1, 0 ); - case A2: return TO_MUX( ADC_CHANNEL_IN2, 0 ); - case A3: return TO_MUX( ADC_CHANNEL_IN3, 0 ); - case A4: return TO_MUX( ADC_CHANNEL_IN4, 0 ); - case A5: return TO_MUX( ADC_CHANNEL_IN5, 0 ); - case A6: return TO_MUX( ADC_CHANNEL_IN6, 0 ); - case A7: return TO_MUX( ADC_CHANNEL_IN7, 0 ); - case B0: return TO_MUX( ADC_CHANNEL_IN8, 0 ); - case B1: return TO_MUX( ADC_CHANNEL_IN9, 0 ); - case C0: return TO_MUX( ADC_CHANNEL_IN10, 0 ); - case C1: return TO_MUX( ADC_CHANNEL_IN11, 0 ); - case C2: return TO_MUX( ADC_CHANNEL_IN12, 0 ); - case C3: return TO_MUX( ADC_CHANNEL_IN13, 0 ); - case C4: return TO_MUX( ADC_CHANNEL_IN14, 0 ); - case C5: return TO_MUX( ADC_CHANNEL_IN15, 0 ); -# if STM32_ADC_USE_ADC3 - case F3: return TO_MUX( ADC_CHANNEL_IN9, 2 ); - case F4: return TO_MUX( ADC_CHANNEL_IN14, 2 ); - case F5: return TO_MUX( ADC_CHANNEL_IN15, 2 ); - case F6: return TO_MUX( ADC_CHANNEL_IN4, 2 ); - case F7: return TO_MUX( ADC_CHANNEL_IN5, 2 ); - case F8: return TO_MUX( ADC_CHANNEL_IN6, 2 ); - case F9: return TO_MUX( ADC_CHANNEL_IN7, 2 ); - case F10: return TO_MUX( ADC_CHANNEL_IN8, 2 ); -# endif -#elif defined(STM32F1XX) - case A0: return TO_MUX( ADC_CHANNEL_IN0, 0 ); - case A1: return TO_MUX( ADC_CHANNEL_IN1, 0 ); - case A2: return TO_MUX( ADC_CHANNEL_IN2, 0 ); - case A3: return TO_MUX( ADC_CHANNEL_IN3, 0 ); - case A4: return TO_MUX( ADC_CHANNEL_IN4, 0 ); - case A5: return TO_MUX( ADC_CHANNEL_IN5, 0 ); - case A6: return TO_MUX( ADC_CHANNEL_IN6, 0 ); - case A7: return TO_MUX( ADC_CHANNEL_IN7, 0 ); - case B0: return TO_MUX( ADC_CHANNEL_IN8, 0 ); - case B1: return TO_MUX( ADC_CHANNEL_IN9, 0 ); - case C0: return TO_MUX( ADC_CHANNEL_IN10, 0 ); - case C1: return TO_MUX( ADC_CHANNEL_IN11, 0 ); - case C2: return TO_MUX( ADC_CHANNEL_IN12, 0 ); - case C3: return TO_MUX( ADC_CHANNEL_IN13, 0 ); - case C4: return TO_MUX( ADC_CHANNEL_IN14, 0 ); - case C5: return TO_MUX( ADC_CHANNEL_IN15, 0 ); - // STM32F103x[C-G] in 144-pin packages also have analog inputs on F6...F10, but they are on ADC3, and the - // ChibiOS ADC driver for STM32F1xx currently supports only ADC1, therefore these pins are not usable. -#endif - } - - // return an adc that would never be used so intToADCDriver will bail out - return TO_MUX(0, 0xFF); -} -// clang-format on - -static inline ADCDriver* intToADCDriver(uint8_t adcInt) { - switch (adcInt) { -#if STM32_ADC_USE_ADC1 - case 0: - return &ADCD1; -#endif -#if STM32_ADC_USE_ADC2 - case 1: - return &ADCD2; -#endif -#if STM32_ADC_USE_ADC3 - case 2: - return &ADCD3; -#endif -#if STM32_ADC_USE_ADC4 - case 3: - return &ADCD4; -#endif - } - - return NULL; -} - -static inline void manageAdcInitializationDriver(uint8_t adc, ADCDriver* adcDriver) { - if (!adcInitialized[adc]) { - adcStart(adcDriver, &adcCfg); - adcInitialized[adc] = true; - } -} - -int16_t analogReadPin(pin_t pin) { - palSetLineMode(pin, PAL_MODE_INPUT_ANALOG); - - return adc_read(pinToMux(pin)); -} - -int16_t analogReadPinAdc(pin_t pin, uint8_t adc) { - palSetLineMode(pin, PAL_MODE_INPUT_ANALOG); - - adc_mux target = pinToMux(pin); - target.adc = adc; - return adc_read(target); -} - -int16_t adc_read(adc_mux mux) { -#if defined(USE_ADCV1) - // TODO: fix previous assumption of only 1 input... - adcConversionGroup.chselr = 1 << mux.input; /*no macro to convert N to ADC_CHSELR_CHSEL1*/ -#elif defined(USE_ADCV2) - adcConversionGroup.sqr3 = ADC_SQR3_SQ1_N(mux.input); -#else - adcConversionGroup.sqr[0] = ADC_SQR1_SQ1_N(mux.input); -#endif - - ADCDriver* targetDriver = intToADCDriver(mux.adc); - if (!targetDriver) { - return 0; - } - - manageAdcInitializationDriver(mux.adc, targetDriver); - if (adcConvert(targetDriver, &adcConversionGroup, &sampleBuffer[0], ADC_BUFFER_DEPTH) != MSG_OK) { - return 0; - } - -#ifdef USE_ADCV2 - // fake 12-bit -> N-bit scale - return (*sampleBuffer) >> (12 - ADC_RESOLUTION); -#else - // already handled as part of adcConvert - return *sampleBuffer; -#endif -} |