src/main/drivers/rcc.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 "rcc_types.h"
  24
  25 enum rcc_reg {
  26     RCC_EMPTY = 0,   // make sure that default value (0) does not enable anything
  27 #ifdef STM32H7
  28     RCC_AHB,
  29     RCC_APB2,
  30     RCC_APB1L,
  31     RCC_APB1H,
  32     RCC_AHB1,
  33     RCC_AHB2,
  34     RCC_AHB3,
  35     RCC_APB3,
  36     RCC_AHB4,
  37     RCC_APB4,
  38 #elif defined(STM32F7)
  39     RCC_AHB2,
  40     RCC_APB2,
  41     RCC_APB1,
  42     RCC_AHB1,
  43 #elif defined(STM32G4)
  44     RCC_AHB2,
  45     RCC_APB2,
  46     RCC_APB11,
  47     RCC_APB12,
  48     RCC_AHB1,
  49 #else
  50     RCC_AHB,
  51     RCC_APB2,
  52     RCC_APB1,
  53     RCC_AHB1,
  54 #endif
  55 };
  56
  57 #define RCC_ENCODE(reg, mask) (((reg) << 5) | LOG2_32BIT(mask))
  58 #define RCC_AHB(periph) RCC_ENCODE(RCC_AHB, RCC_AHBENR_ ## periph ## EN)
  59 #define RCC_APB2(periph) RCC_ENCODE(RCC_APB2, RCC_APB2ENR_ ## periph ## EN)
  60 #define RCC_APB1(periph) RCC_ENCODE(RCC_APB1, RCC_APB1ENR_ ## periph ## EN)
  61 #define RCC_AHB1(periph) RCC_ENCODE(RCC_AHB1, RCC_AHB1ENR_ ## periph ## EN)
  62
  63 #ifdef STM32H7
  64 #define RCC_AHB2(periph) RCC_ENCODE(RCC_AHB2, RCC_AHB2ENR_ ## periph ## EN)
  65 #define RCC_AHB3(periph) RCC_ENCODE(RCC_AHB3, RCC_AHB3ENR_ ## periph ## EN)
  66 #define RCC_APB3(periph) RCC_ENCODE(RCC_APB3, RCC_APB3ENR_ ## periph ## EN)
  67 #define RCC_AHB4(periph) RCC_ENCODE(RCC_AHB4, RCC_AHB4ENR_ ## periph ## EN)
  68 #define RCC_APB4(periph) RCC_ENCODE(RCC_APB4, RCC_APB4ENR_ ## periph ## EN)
  69 #undef  RCC_APB1
  70 #define RCC_APB1L(periph) RCC_ENCODE(RCC_APB1L, RCC_APB1LENR_ ## periph ## EN)
  71 #define RCC_APB1H(periph) RCC_ENCODE(RCC_APB1H, RCC_APB1HENR_ ## periph ## EN)
  72 #endif
  73
  74 #ifdef STM32G4
  75 #undef  RCC_APB1
  76 #define RCC_APB11(periph) RCC_ENCODE(RCC_APB11, RCC_APB1ENR1_ ## periph ## EN)
  77 #define RCC_APB12(periph) RCC_ENCODE(RCC_APB12, RCC_APB1ENR2_ ## periph ## EN)
  78 #define RCC_AHB1(periph) RCC_ENCODE(RCC_AHB1, RCC_AHB1ENR_ ## periph ## EN)
  79 #define RCC_AHB2(periph) RCC_ENCODE(RCC_AHB2, RCC_AHB2ENR_ ## periph ## EN)
  80 #endif
  81
  82 #ifdef STM32F7
  83 #define RCC_AHB1(periph) RCC_ENCODE(RCC_AHB1, RCC_AHB1ENR_ ## periph ## EN)
  84 #define RCC_AHB2(periph) RCC_ENCODE(RCC_AHB2, RCC_AHB2ENR_ ## periph ## EN)
  85 #define RCC_APB1(periph) RCC_ENCODE(RCC_APB1, RCC_APB1ENR_ ## periph ## EN)
  86 #define RCC_APB2(periph) RCC_ENCODE(RCC_APB2, RCC_APB2ENR_ ## periph ## EN)
  87 #endif
  88
  89 void RCC_ClockCmd(rccPeriphTag_t periphTag, FunctionalState NewState);
  90 void RCC_ResetCmd(rccPeriphTag_t periphTag, FunctionalState NewState);