src/main/drivers/stm32f7xx_ll_ex.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 "stm32f7xx.h"
  24 #include "common/utils.h"
  25
  26 #define DMA_STREAM_MASK 0xFFU
  27
  28 __STATIC_INLINE DMA_TypeDef *LL_EX_DMA_Stream_to_DMA(DMA_Stream_TypeDef *DMAx_Streamy)
  29 {
  30         // clear stream address
  31         return (DMA_TypeDef *) (((uint32_t) DMAx_Streamy) & ((uint32_t) ~DMA_STREAM_MASK));
  32 }
  33
  34 __STATIC_INLINE uint32_t LL_EX_DMA_Stream_to_Stream(DMA_Stream_TypeDef *DMAx_Streamy)
  35 {
  36         STATIC_ASSERT(DMA1_Stream0_BASE - DMA1_BASE == sizeof(DMA_TypeDef), DMA_TypeDef_has_padding);
  37         STATIC_ASSERT(DMA1_Stream1_BASE - DMA1_Stream0_BASE == sizeof(DMA_Stream_TypeDef), DMA_Stream_TypeDef_has_padding);
  38
  39         const size_t firstStreamOffset = sizeof(DMA_TypeDef);
  40         const size_t streamSize = sizeof(DMA_Stream_TypeDef);
  41
  42         return (((uint32_t) DMAx_Streamy & DMA_STREAM_MASK) - firstStreamOffset) / streamSize;
  43 }
  44
  45 #undef DMA_STREAM_MASK
  46
  47 __STATIC_INLINE uint32_t LL_EX_DMA_Init(DMA_Stream_TypeDef *DMAx_Streamy, LL_DMA_InitTypeDef *DMA_InitStruct)
  48 {
  49         DMA_TypeDef *DMA = LL_EX_DMA_Stream_to_DMA(DMAx_Streamy);
  50         const uint32_t Stream = LL_EX_DMA_Stream_to_Stream(DMAx_Streamy);
  51
  52         return LL_DMA_Init(DMA, Stream, DMA_InitStruct);
  53 }
  54
  55 __STATIC_INLINE uint32_t LL_EX_DMA_DeInit(DMA_Stream_TypeDef *DMAx_Streamy)
  56 {
  57         DMA_TypeDef *DMA = LL_EX_DMA_Stream_to_DMA(DMAx_Streamy);
  58         const uint32_t Stream = LL_EX_DMA_Stream_to_Stream(DMAx_Streamy);
  59
  60         return LL_DMA_DeInit(DMA, Stream);
  61 }
  62
  63 __STATIC_INLINE void LL_EX_DMA_SetChannelSelection(DMA_Stream_TypeDef *DMAx_Streamy, uint32_t Channel)
  64 {
  65         MODIFY_REG(DMAx_Streamy->CR, DMA_SxCR_CHSEL, Channel);
  66 }
  67
  68 __STATIC_INLINE void LL_EX_DMA_EnableResource(DMA_Stream_TypeDef *DMAx_Streamy)
  69 {
  70         SET_BIT(DMAx_Streamy->CR, DMA_SxCR_EN);
  71 }
  72
  73 __STATIC_INLINE void LL_EX_DMA_DisableResource(DMA_Stream_TypeDef *DMAx_Streamy)
  74 {
  75         CLEAR_BIT(DMAx_Streamy->CR, DMA_SxCR_EN);
  76 }
  77
  78 __STATIC_INLINE void LL_EX_DMA_EnableIT_TC(DMA_Stream_TypeDef *DMAx_Streamy)
  79 {
  80         SET_BIT(DMAx_Streamy->CR, DMA_SxCR_TCIE);
  81 }
  82
  83 __STATIC_INLINE void LL_EX_DMA_SetDataLength(DMA_Stream_TypeDef* DMAx_Streamy, uint32_t NbData)
  84 {
  85         MODIFY_REG(DMAx_Streamy->NDTR, DMA_SxNDT, NbData);
  86 }
  87
  88 __STATIC_INLINE uint32_t LL_EX_DMA_GetDataLength(DMA_Stream_TypeDef* DMAx_Streamy)
  89 {
  90     DMA_TypeDef *DMA = LL_EX_DMA_Stream_to_DMA(DMAx_Streamy);
  91         const uint32_t Stream = LL_EX_DMA_Stream_to_Stream(DMAx_Streamy);
  92     return LL_DMA_GetDataLength(DMA, Stream);
  93 }
  94
  95 __STATIC_INLINE void LL_EX_TIM_EnableIT(TIM_TypeDef *TIMx, uint32_t Sources)
  96 {
  97         SET_BIT(TIMx->DIER, Sources);
  98 }
  99
 100 __STATIC_INLINE void LL_EX_TIM_DisableIT(TIM_TypeDef *TIMx, uint32_t Sources)
 101 {
 102         CLEAR_BIT(TIMx->DIER, Sources);
 103 }
 104
 105 __STATIC_INLINE void LL_EX_TIM_CC_EnableNChannel(TIM_TypeDef *TIMx, uint32_t Channel)
 106 {
 107         LL_TIM_CC_EnableChannel(TIMx, 4 * Channel);
 108 }