src/main/drivers/adc_impl.h

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #pragma once
  22
  23 #include "drivers/adc.h"
  24 #include "drivers/dma.h"
  25 #include "drivers/io_types.h"
  26 #include "drivers/rcc_types.h"
  27
  28 #if defined(STM32F4) || defined(STM32F7)
  29 #define ADC_TAG_MAP_COUNT 16
  30 #elif defined(STM32H7)
  31 #ifdef USE_ADC_INTERNAL
  32 #define ADC_TAG_MAP_COUNT 30
  33 #else
  34 #define ADC_TAG_MAP_COUNT 28
  35 #endif
  36 #elif defined(STM32F3)
  37 #define ADC_TAG_MAP_COUNT 39
  38 #else
  39 #define ADC_TAG_MAP_COUNT 10
  40 #endif
  41
  42 typedef struct adcTagMap_s {
  43     ioTag_t tag;
  44 #if !defined(STM32F1) // F1 pins have uniform connection to ADC instances
  45     uint8_t devices;
  46 #endif
  47     uint32_t channel;
  48 #if defined(STM32H7)
  49     uint8_t channelOrdinal;
  50 #endif
  51 } adcTagMap_t;
  52
  53 // Encoding for adcTagMap_t.devices
  54
  55 #define ADC_DEVICES_1   (1 << ADCDEV_1)
  56 #define ADC_DEVICES_2   (1 << ADCDEV_2)
  57 #define ADC_DEVICES_3   (1 << ADCDEV_3)
  58 #define ADC_DEVICES_4   (1 << ADCDEV_4)
  59 #define ADC_DEVICES_12  ((1 << ADCDEV_1)|(1 << ADCDEV_2))
  60 #define ADC_DEVICES_34  ((1 << ADCDEV_3)|(1 << ADCDEV_4))
  61 #define ADC_DEVICES_123 ((1 << ADCDEV_1)|(1 << ADCDEV_2)|(1 << ADCDEV_3))
  62
  63 typedef struct adcDevice_s {
  64     ADC_TypeDef* ADCx;
  65     rccPeriphTag_t rccADC;
  66 #if !defined(USE_DMA_SPEC)
  67     dmaResource_t* dmaResource;
  68 #if defined(STM32F4) || defined(STM32F7) || defined(STM32H7)
  69     uint32_t channel;
  70 #endif
  71 #endif // !defined(USE_DMA_SPEC)
  72 #if defined(STM32F7) || defined(STM32H7)
  73     ADC_HandleTypeDef ADCHandle;
  74     DMA_HandleTypeDef DmaHandle;
  75 #endif
  76 #if defined(STM32H7)
  77     uint8_t irq;
  78     uint32_t channelBits;
  79 #endif
  80 } adcDevice_t;
  81
  82 #ifdef USE_ADC_INTERNAL
  83 extern int32_t adcVREFINTCAL;      // ADC value (12-bit) of band gap with Vref = VREFINTCAL_VREF
  84 extern int32_t adcTSCAL1;
  85 extern int32_t adcTSCAL2;
  86 extern int32_t adcTSSlopeK;
  87 #endif
  88
  89 extern const adcDevice_t adcHardware[];
  90 extern const adcTagMap_t adcTagMap[ADC_TAG_MAP_COUNT];
  91 extern adcOperatingConfig_t adcOperatingConfig[ADC_CHANNEL_COUNT];
  92 extern volatile uint16_t adcValues[ADC_CHANNEL_COUNT];
  93
  94 uint8_t adcChannelByTag(ioTag_t ioTag);
  95 ADCDevice adcDeviceByInstance(ADC_TypeDef *instance);
  96 bool adcVerifyPin(ioTag_t tag, ADCDevice device);
  97
  98 // Marshall values in DMA instance/channel based order to adcChannel based order.
  99 // Required for multi DMA instance implementation
 100 void adcGetChannelValues(void);
 101
 102 //
 103 // VREFINT and TEMPSENSOR related definitions
 104 // These are shared among common adc.c and MCU dependent adc_stm32XXX.c
 105 //
 106 #ifdef STM32F7
 107 // STM32F7 HAL library V1.12.0 defines VREFINT and TEMPSENSOR in stm32f7xx_ll_adc.h,
 108 // which is not included from stm32f7xx_hal_adc.h
 109 // We manually copy required lines here.
 110 // XXX V1.14.0 may solve this problem
 111
 112 #define VREFINT_CAL_VREF                   ( 3300U)                    /* Analog voltage reference (Vref+) value with which temperature sensor has been calibrated in production (tolerance: +-10 mV) (unit: mV). */
 113 #define TEMPSENSOR_CAL1_TEMP               (( int32_t)   30)           /* Internal temperature sensor, temperature at which temperature sensor has been calibrated in production for data into TEMPSENSOR_CAL1_ADDR (tolerance: +-5 DegC) (unit: DegC). */
 114 #define TEMPSENSOR_CAL2_TEMP               (( int32_t)  110)           /* Internal temperature sensor, temperature at which temperature sensor has been calibrated in production for data into TEMPSENSOR_CAL2_ADDR (tolerance: +-5 DegC) (unit: DegC). */
 115 #define TEMPSENSOR_CAL_VREFANALOG          ( 3300U)                    /* Analog voltage reference (Vref+) voltage with which temperature sensor has been calibrated in production (+-10 mV) (unit: mV). */
 116
 117 // These addresses are incorrectly defined in stm32f7xx_ll_adc.h
 118 #if defined(STM32F745xx) || defined(STM32F746xx) || defined(STM32F765xx)
 119 // F745xx_F746xx and  F765xx_F767xx_F769xx
 120 #define VREFINT_CAL_ADDR                   ((uint16_t*) (0x1FF0F44A))
 121 #define TEMPSENSOR_CAL1_ADDR               ((uint16_t*) (0x1FF0F44C))
 122 #define TEMPSENSOR_CAL2_ADDR               ((uint16_t*) (0x1FF0F44E))
 123 #elif defined(STM32F722xx)
 124 // F72x_F73x
 125 #define VREFINT_CAL_ADDR                   ((uint16_t*) (0x1FF07A2A))
 126 #define TEMPSENSOR_CAL1_ADDR               ((uint16_t*) (0x1FF07A2C))
 127 #define TEMPSENSOR_CAL2_ADDR               ((uint16_t*) (0x1FF07A2E))
 128 #endif
 129 #endif // STM32F7
 130
 131 #ifdef STM32F4
 132 // STM32F4 stdlib does not define any of these
 133 #define VREFINT_CAL_VREF                   (3300U)
 134 #define TEMPSENSOR_CAL_VREFANALOG          (3300U)
 135 #define TEMPSENSOR_CAL1_TEMP               ((int32_t)  30)
 136 #define TEMPSENSOR_CAL2_TEMP               ((int32_t) 110)
 137 #endif