src/platform/APM32/apm32f4xx_ddl_ex.h

   1 /*
   2  * This file is part of Betaflight.
   3  *
   4  * Betaflight is free software. You can redistribute this software
   5  * and/or modify this software under the terms of the GNU General
   6  * Public License as published by the Free Software Foundation,
   7  * either version 3 of the License, or (at your option) any later
   8  * version.
   9  *
  10  * Betaflight is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  *
  14  * See the GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this software.
  18  *
  19  * If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #pragma once
  23
  24 #include "apm32f4xx.h"
  25 #include "common/utils.h"
  26
  27 // XXX Followings are straight copy of stm32f7xx_ll_ex.h.
  28 // XXX Consider consolidation when LL-DShot is stable.
  29
  30 __STATIC_INLINE void DDL_EX_TMR_DisableIT(TMR_TypeDef *TMRx, uint32_t Sources)
  31 {
  32     CLEAR_BIT(TMRx->DIEN, Sources);
  33 }
  34 __STATIC_INLINE void DDL_EX_TMR_EnableIT(TMR_TypeDef *TMRx, uint32_t Sources)
  35 {
  36     SET_BIT(TMRx->DIEN, Sources);
  37 }
  38 __STATIC_INLINE uint32_t DDL_EX_DMA_Stream_to_Stream(DMA_Stream_TypeDef *DMAx_Streamy)
  39 {
  40     STATIC_ASSERT(DMA1_Stream0_BASE - DMA1_BASE == sizeof(DMA_TypeDef), DMA_TypeDef_has_padding);
  41     STATIC_ASSERT(DMA1_Stream1_BASE - DMA1_Stream0_BASE == sizeof(DMA_Stream_TypeDef), DMA_Stream_TypeDef_has_padding);
  42
  43     const size_t firstStreamOffset = sizeof(DMA_TypeDef);
  44     const size_t streamSize = sizeof(DMA_Stream_TypeDef);
  45
  46     return (((uint32_t) DMAx_Streamy & 0XFF) - firstStreamOffset) / streamSize;
  47 }
  48 __STATIC_INLINE DMA_TypeDef *DDL_EX_DMA_Stream_to_DMA(DMA_Stream_TypeDef *DMAx_Streamy)
  49 {
  50     // clear stream address
  51     return (DMA_TypeDef *) (((uint32_t) DMAx_Streamy) & ((uint32_t) ~0XFF));
  52 }
  53 __STATIC_INLINE uint32_t DDL_EX_DMA_DeInit(DMA_Stream_TypeDef *DMAx_Streamy)
  54 {
  55     DMA_TypeDef *DMA = DDL_EX_DMA_Stream_to_DMA(DMAx_Streamy);
  56     const uint32_t Stream = DDL_EX_DMA_Stream_to_Stream(DMAx_Streamy);
  57
  58     return DDL_DMA_DeInit(DMA, Stream);
  59 }
  60 __STATIC_INLINE uint32_t DDL_EX_DMA_Init(DMA_Stream_TypeDef *DMAx_Streamy, DDL_DMA_InitTypeDef *DMA_InitStruct)
  61 {
  62     DMA_TypeDef *DMA = DDL_EX_DMA_Stream_to_DMA(DMAx_Streamy);
  63     const uint32_t Stream = DDL_EX_DMA_Stream_to_Stream(DMAx_Streamy);
  64
  65     return DDL_DMA_Init(DMA, Stream, DMA_InitStruct);
  66 }
  67 __STATIC_INLINE void DDL_EX_DMA_SetDataLength(DMA_Stream_TypeDef* DMAx_Streamy, uint32_t NbData)
  68 {
  69     MODIFY_REG(DMAx_Streamy->NDATA, DMA_NDATAx, NbData);
  70 }
  71
  72 __STATIC_INLINE uint32_t DDL_EX_DMA_GetDataLength(DMA_Stream_TypeDef* DMAx_Streamy)
  73 {
  74     DMA_TypeDef *DMA = DDL_EX_DMA_Stream_to_DMA(DMAx_Streamy);
  75     const uint32_t Stream = DDL_EX_DMA_Stream_to_Stream(DMAx_Streamy);
  76
  77     return DDL_DMA_GetDataLength(DMA, Stream);
  78 }
  79
  80 __STATIC_INLINE void DDL_EX_DMA_EnableResource(DMA_Stream_TypeDef *DMAx_Streamy)
  81 {
  82     SET_BIT(DMAx_Streamy->SCFG, DMA_SCFGx_EN);
  83 }
  84 __STATIC_INLINE void DDL_EX_DMA_DisableResource(DMA_Stream_TypeDef *DMAx_Streamy)
  85 {
  86     CLEAR_BIT(DMAx_Streamy->SCFG, DMA_SCFGx_EN);
  87 }
  88
  89 __STATIC_INLINE void DDL_EX_DMA_EnableIT_TC(DMA_Stream_TypeDef *DMAx_Streamy)
  90 {
  91     SET_BIT(DMAx_Streamy->SCFG, DMA_SCFGx_TXCIEN);
  92 }
  93
  94 __STATIC_INLINE void DDL_EX_TMR_CC_EnableNChannel(TMR_TypeDef *TMRx, uint32_t Channel)
  95 {
  96     DDL_TMR_CC_EnableChannel(TMRx, 4 * Channel);
  97 }