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micro_climate/Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_gfxmmu.c

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2024-07-05 03:52:43 +00:00
/**
******************************************************************************
* @file stm32l4xx_hal_gfxmmu.c
* @author MCD Application Team
* @brief This file provides firmware functions to manage the following
* functionalities of the Graphic MMU (GFXMMU) peripheral:
* + Initialization and De-initialization.
* + LUT configuration.
* + Modify physical buffer addresses.
* + Error management.
*
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
@verbatim
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
*** Initialization ***
======================
[..]
(#) As prerequisite, fill in the HAL_GFXMMU_MspInit() :
(++) Enable GFXMMU clock interface with __HAL_RCC_GFXMMU_CLK_ENABLE().
(++) If interrupts are used, enable and configure GFXMMU global
interrupt with HAL_NVIC_SetPriority() and HAL_NVIC_EnableIRQ().
(#) Configure the number of blocks per line, default value, physical
buffer addresses and interrupts using the HAL_GFXMMU_Init() function.
*** LUT configuration ***
=========================
[..]
(#) Use HAL_GFXMMU_DisableLutLines() to deactivate all LUT lines (or a
range of lines).
(#) Use HAL_GFXMMU_ConfigLut() to copy LUT from flash to look up RAM.
(#) Use HAL_GFXMMU_ConfigLutLine() to configure one line of LUT.
*** Modify physical buffer addresses ***
=======================================
[..]
(#) Use HAL_GFXMMU_ModifyBuffers() to modify physical buffer addresses.
*** Error management ***
========================
[..]
(#) If interrupts are used, HAL_GFXMMU_IRQHandler() will be called when
an error occurs. This function will call HAL_GFXMMU_ErrorCallback().
Use HAL_GFXMMU_GetError() to get the error code.
*** De-initialization ***
=========================
[..]
(#) As prerequisite, fill in the HAL_GFXMMU_MspDeInit() :
(++) Disable GFXMMU clock interface with __HAL_RCC_GFXMMU_CLK_ENABLE().
(++) If interrupts has been used, disable GFXMMU global interrupt with
HAL_NVIC_DisableIRQ().
(#) De-initialize GFXMMU using the HAL_GFXMMU_DeInit() function.
*** Callback registration ***
=============================
[..]
The compilation define USE_HAL_GFXMMU_REGISTER_CALLBACKS when set to 1
allows the user to configure dynamically the driver callbacks.
Use functions HAL_GFXMMU_RegisterCallback() to register a user callback.
[..]
Function HAL_GFXMMU_RegisterCallback() allows to register following callbacks:
(+) ErrorCallback : GFXMMU error.
(+) MspInitCallback : GFXMMU MspInit.
(+) MspDeInitCallback : GFXMMU MspDeInit.
[..]
This function takes as parameters the HAL peripheral handle, the callback ID
and a pointer to the user callback function.
[..]
Use function HAL_GFXMMU_UnRegisterCallback() to reset a callback to the default
weak (surcharged) function.
HAL_GFXMMU_UnRegisterCallback() takes as parameters the HAL peripheral handle,
and the callback ID.
[..]
This function allows to reset following callbacks:
(+) ErrorCallback : GFXMMU error.
(+) MspInitCallback : GFXMMU MspInit.
(+) MspDeInitCallback : GFXMMU MspDeInit.
[..]
By default, after the HAL_GFXMMU_Init and if the state is HAL_GFXMMU_STATE_RESET
all callbacks are reset to the corresponding legacy weak (surcharged) functions:
examples HAL_GFXMMU_ErrorCallback().
Exception done for MspInit and MspDeInit callbacks that are respectively
reset to the legacy weak (surcharged) functions in the HAL_GFXMMU_Init
and HAL_GFXMMU_DeInit only when these callbacks are null (not registered beforehand).
If not, MspInit or MspDeInit are not null, the HAL_GFXMMU_Init and HAL_GFXMMU_DeInit
keep and use the user MspInit/MspDeInit callbacks (registered beforehand).
[..]
Callbacks can be registered/unregistered in READY state only.
Exception done for MspInit/MspDeInit callbacks that can be registered/unregistered
in READY or RESET state, thus registered (user) MspInit/DeInit callbacks can be used
during the Init/DeInit.
In that case first register the MspInit/MspDeInit user callbacks
using HAL_GFXMMU_RegisterCallback before calling HAL_GFXMMU_DeInit
or HAL_GFXMMU_Init function.
[..]
When the compilation define USE_HAL_GFXMMU_REGISTER_CALLBACKS is set to 0 or
not defined, the callback registering feature is not available
and weak (surcharged) callbacks are used.
@endverbatim
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32l4xx_hal.h"
/** @addtogroup STM32L4xx_HAL_Driver
* @{
*/
#ifdef HAL_GFXMMU_MODULE_ENABLED
#if defined(GFXMMU)
/** @defgroup GFXMMU GFXMMU
* @brief GFXMMU HAL driver module
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define GFXMMU_LUTXL_FVB_OFFSET 8U
#define GFXMMU_LUTXL_LVB_OFFSET 16U
#define GFXMMU_CR_ITS_MASK 0x1FU
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup GFXMMU_Exported_Functions GFXMMU Exported Functions
* @{
*/
/** @defgroup GFXMMU_Exported_Functions_Group1 Initialization and de-initialization functions
* @brief Initialization and de-initialization functions
*
@verbatim
==============================================================================
##### Initialization and de-initialization functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Initialize the GFXMMU.
(+) De-initialize the GFXMMU.
@endverbatim
* @{
*/
/**
* @brief Initialize the GFXMMU according to the specified parameters in the
* GFXMMU_InitTypeDef structure and initialize the associated handle.
* @param hgfxmmu GFXMMU handle.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_GFXMMU_Init(GFXMMU_HandleTypeDef *hgfxmmu)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check GFXMMU handle */
if(hgfxmmu == NULL)
{
status = HAL_ERROR;
}
else
{
/* Check parameters */
assert_param(IS_GFXMMU_ALL_INSTANCE(hgfxmmu->Instance));
assert_param(IS_GFXMMU_BLOCKS_PER_LINE(hgfxmmu->Init.BlocksPerLine));
assert_param(IS_GFXMMU_BUFFER_ADDRESS(hgfxmmu->Init.Buffers.Buf0Address));
assert_param(IS_GFXMMU_BUFFER_ADDRESS(hgfxmmu->Init.Buffers.Buf1Address));
assert_param(IS_GFXMMU_BUFFER_ADDRESS(hgfxmmu->Init.Buffers.Buf2Address));
assert_param(IS_GFXMMU_BUFFER_ADDRESS(hgfxmmu->Init.Buffers.Buf3Address));
assert_param(IS_FUNCTIONAL_STATE(hgfxmmu->Init.Interrupts.Activation));
#if (USE_HAL_GFXMMU_REGISTER_CALLBACKS == 1)
/* Reset callback pointers to the weak predefined callbacks */
hgfxmmu->ErrorCallback = HAL_GFXMMU_ErrorCallback;
/* Call GFXMMU MSP init function */
if(hgfxmmu->MspInitCallback == NULL)
{
hgfxmmu->MspInitCallback = HAL_GFXMMU_MspInit;
}
hgfxmmu->MspInitCallback(hgfxmmu);
#else
/* Call GFXMMU MSP init function */
HAL_GFXMMU_MspInit(hgfxmmu);
#endif
/* Configure blocks per line and interrupts parameters on GFXMMU_CR register */
hgfxmmu->Instance->CR &= ~(GFXMMU_CR_B0OIE | GFXMMU_CR_B1OIE | GFXMMU_CR_B2OIE | GFXMMU_CR_B3OIE |
GFXMMU_CR_AMEIE | GFXMMU_CR_192BM);
hgfxmmu->Instance->CR |= (hgfxmmu->Init.BlocksPerLine);
if(hgfxmmu->Init.Interrupts.Activation == ENABLE)
{
assert_param(IS_GFXMMU_INTERRUPTS(hgfxmmu->Init.Interrupts.UsedInterrupts));
hgfxmmu->Instance->CR |= hgfxmmu->Init.Interrupts.UsedInterrupts;
}
/* Configure default value on GFXMMU_DVR register */
hgfxmmu->Instance->DVR = hgfxmmu->Init.DefaultValue;
/* Configure physical buffer addresses on GFXMMU_BxCR registers */
hgfxmmu->Instance->B0CR = hgfxmmu->Init.Buffers.Buf0Address;
hgfxmmu->Instance->B1CR = hgfxmmu->Init.Buffers.Buf1Address;
hgfxmmu->Instance->B2CR = hgfxmmu->Init.Buffers.Buf2Address;
hgfxmmu->Instance->B3CR = hgfxmmu->Init.Buffers.Buf3Address;
/* Reset GFXMMU error code */
hgfxmmu->ErrorCode = GFXMMU_ERROR_NONE;
/* Set GFXMMU to ready state */
hgfxmmu->State = HAL_GFXMMU_STATE_READY;
}
/* Return function status */
return status;
}
/**
* @brief De-initialize the GFXMMU.
* @param hgfxmmu GFXMMU handle.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_GFXMMU_DeInit(GFXMMU_HandleTypeDef *hgfxmmu)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check GFXMMU handle */
if(hgfxmmu == NULL)
{
status = HAL_ERROR;
}
else
{
/* Check parameters */
assert_param(IS_GFXMMU_ALL_INSTANCE(hgfxmmu->Instance));
/* Disable all interrupts on GFXMMU_CR register */
hgfxmmu->Instance->CR &= ~(GFXMMU_CR_B0OIE | GFXMMU_CR_B1OIE | GFXMMU_CR_B2OIE | GFXMMU_CR_B3OIE |
GFXMMU_CR_AMEIE);
/* Call GFXMMU MSP de-init function */
#if (USE_HAL_GFXMMU_REGISTER_CALLBACKS == 1)
if(hgfxmmu->MspDeInitCallback == NULL)
{
hgfxmmu->MspDeInitCallback = HAL_GFXMMU_MspDeInit;
}
hgfxmmu->MspDeInitCallback(hgfxmmu);
#else
HAL_GFXMMU_MspDeInit(hgfxmmu);
#endif
/* Set GFXMMU to reset state */
hgfxmmu->State = HAL_GFXMMU_STATE_RESET;
}
/* Return function status */
return status;
}
/**
* @brief Initialize the GFXMMU MSP.
* @param hgfxmmu GFXMMU handle.
* @retval None.
*/
__weak void HAL_GFXMMU_MspInit(GFXMMU_HandleTypeDef *hgfxmmu)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hgfxmmu);
/* NOTE : This function should not be modified, when the function is needed,
the HAL_GFXMMU_MspInit could be implemented in the user file.
*/
}
/**
* @brief De-initialize the GFXMMU MSP.
* @param hgfxmmu GFXMMU handle.
* @retval None.
*/
__weak void HAL_GFXMMU_MspDeInit(GFXMMU_HandleTypeDef *hgfxmmu)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hgfxmmu);
/* NOTE : This function should not be modified, when the function is needed,
the HAL_GFXMMU_MspDeInit could be implemented in the user file.
*/
}
#if (USE_HAL_GFXMMU_REGISTER_CALLBACKS == 1)
/**
* @brief Register a user GFXMMU callback
* to be used instead of the weak predefined callback.
* @param hgfxmmu GFXMMU handle.
* @param CallbackID ID of the callback to be registered.
* This parameter can be one of the following values:
* @arg @ref HAL_GFXMMU_ERROR_CB_ID error callback ID.
* @arg @ref HAL_GFXMMU_MSPINIT_CB_ID MSP init callback ID.
* @arg @ref HAL_GFXMMU_MSPDEINIT_CB_ID MSP de-init callback ID.
* @param pCallback pointer to the callback function.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_GFXMMU_RegisterCallback(GFXMMU_HandleTypeDef *hgfxmmu,
HAL_GFXMMU_CallbackIDTypeDef CallbackID,
pGFXMMU_CallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if(pCallback == NULL)
{
/* update the error code */
hgfxmmu->ErrorCode |= GFXMMU_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
}
else
{
if(HAL_GFXMMU_STATE_READY == hgfxmmu->State)
{
switch (CallbackID)
{
case HAL_GFXMMU_ERROR_CB_ID :
hgfxmmu->ErrorCallback = pCallback;
break;
case HAL_GFXMMU_MSPINIT_CB_ID :
hgfxmmu->MspInitCallback = pCallback;
break;
case HAL_GFXMMU_MSPDEINIT_CB_ID :
hgfxmmu->MspDeInitCallback = pCallback;
break;
default :
/* update the error code */
hgfxmmu->ErrorCode |= GFXMMU_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
break;
}
}
else if(HAL_GFXMMU_STATE_RESET == hgfxmmu->State)
{
switch (CallbackID)
{
case HAL_GFXMMU_MSPINIT_CB_ID :
hgfxmmu->MspInitCallback = pCallback;
break;
case HAL_GFXMMU_MSPDEINIT_CB_ID :
hgfxmmu->MspDeInitCallback = pCallback;
break;
default :
/* update the error code */
hgfxmmu->ErrorCode |= GFXMMU_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
break;
}
}
else
{
/* update the error code */
hgfxmmu->ErrorCode |= GFXMMU_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
}
}
return status;
}
/**
* @brief Unregister a user GFXMMU callback.
* GFXMMU callback is redirected to the weak predefined callback.
* @param hgfxmmu GFXMMU handle.
* @param CallbackID ID of the callback to be unregistered.
* This parameter can be one of the following values:
* @arg @ref HAL_GFXMMU_ERROR_CB_ID error callback ID.
* @arg @ref HAL_GFXMMU_MSPINIT_CB_ID MSP init callback ID.
* @arg @ref HAL_GFXMMU_MSPDEINIT_CB_ID MSP de-init callback ID.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_GFXMMU_UnRegisterCallback(GFXMMU_HandleTypeDef *hgfxmmu,
HAL_GFXMMU_CallbackIDTypeDef CallbackID)
{
HAL_StatusTypeDef status = HAL_OK;
if(HAL_GFXMMU_STATE_READY == hgfxmmu->State)
{
switch (CallbackID)
{
case HAL_GFXMMU_ERROR_CB_ID :
hgfxmmu->ErrorCallback = HAL_GFXMMU_ErrorCallback;
break;
case HAL_GFXMMU_MSPINIT_CB_ID :
hgfxmmu->MspInitCallback = HAL_GFXMMU_MspInit;
break;
case HAL_GFXMMU_MSPDEINIT_CB_ID :
hgfxmmu->MspDeInitCallback = HAL_GFXMMU_MspDeInit;
break;
default :
/* update the error code */
hgfxmmu->ErrorCode |= GFXMMU_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
break;
}
}
else if(HAL_GFXMMU_STATE_RESET == hgfxmmu->State)
{
switch (CallbackID)
{
case HAL_GFXMMU_MSPINIT_CB_ID :
hgfxmmu->MspInitCallback = HAL_GFXMMU_MspInit;
break;
case HAL_GFXMMU_MSPDEINIT_CB_ID :
hgfxmmu->MspDeInitCallback = HAL_GFXMMU_MspDeInit;
break;
default :
/* update the error code */
hgfxmmu->ErrorCode |= GFXMMU_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
break;
}
}
else
{
/* update the error code */
hgfxmmu->ErrorCode |= GFXMMU_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
}
return status;
}
#endif /* USE_HAL_GFXMMU_REGISTER_CALLBACKS */
/**
* @}
*/
/** @defgroup GFXMMU_Exported_Functions_Group2 Operations functions
* @brief GFXMMU operation functions
*
@verbatim
==============================================================================
##### Operation functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Configure LUT.
(+) Modify physical buffer addresses.
(+) Manage error.
@endverbatim
* @{
*/
/**
* @brief This function allows to copy LUT from flash to look up RAM.
* @param hgfxmmu GFXMMU handle.
* @param FirstLine First line enabled on LUT.
* This parameter must be a number between Min_Data = 0 and Max_Data = 1023.
* @param LinesNumber Number of lines enabled on LUT.
* This parameter must be a number between Min_Data = 1 and Max_Data = 1024.
* @param Address Start address of LUT in flash.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_GFXMMU_ConfigLut(GFXMMU_HandleTypeDef *hgfxmmu,
uint32_t FirstLine,
uint32_t LinesNumber,
uint32_t Address)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_GFXMMU_ALL_INSTANCE(hgfxmmu->Instance));
assert_param(IS_GFXMMU_LUT_LINE(FirstLine));
assert_param(IS_GFXMMU_LUT_LINES_NUMBER(LinesNumber));
/* Check GFXMMU state and coherent parameters */
if((hgfxmmu->State != HAL_GFXMMU_STATE_READY) || ((FirstLine + LinesNumber) > 1024U))
{
status = HAL_ERROR;
}
else
{
uint32_t current_address, current_line, lutxl_address, lutxh_address;
/* Initialize local variables */
current_address = Address;
current_line = 0U;
lutxl_address = (uint32_t) &(hgfxmmu->Instance->LUT[2U * FirstLine]);
lutxh_address = (uint32_t) &(hgfxmmu->Instance->LUT[(2U * FirstLine) + 1U]);
/* Copy LUT from flash to look up RAM */
while(current_line < LinesNumber)
{
*((uint32_t *)lutxl_address) = *((uint32_t *)current_address);
current_address += 4U;
*((uint32_t *)lutxh_address) = *((uint32_t *)current_address);
current_address += 4U;
lutxl_address += 8U;
lutxh_address += 8U;
current_line++;
}
}
/* Return function status */
return status;
}
/**
* @brief This function allows to disable a range of LUT lines.
* @param hgfxmmu GFXMMU handle.
* @param FirstLine First line to disable on LUT.
* This parameter must be a number between Min_Data = 0 and Max_Data = 1023.
* @param LinesNumber Number of lines to disable on LUT.
* This parameter must be a number between Min_Data = 1 and Max_Data = 1024.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_GFXMMU_DisableLutLines(GFXMMU_HandleTypeDef *hgfxmmu,
uint32_t FirstLine,
uint32_t LinesNumber)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_GFXMMU_ALL_INSTANCE(hgfxmmu->Instance));
assert_param(IS_GFXMMU_LUT_LINE(FirstLine));
assert_param(IS_GFXMMU_LUT_LINES_NUMBER(LinesNumber));
/* Check GFXMMU state and coherent parameters */
if((hgfxmmu->State != HAL_GFXMMU_STATE_READY) || ((FirstLine + LinesNumber) > 1024U))
{
status = HAL_ERROR;
}
else
{
uint32_t current_line, lutxl_address, lutxh_address;
/* Initialize local variables */
current_line = 0U;
lutxl_address = (uint32_t) &(hgfxmmu->Instance->LUT[2U * FirstLine]);
lutxh_address = (uint32_t) &(hgfxmmu->Instance->LUT[(2U * FirstLine) + 1U]);
/* Disable LUT lines */
while(current_line < LinesNumber)
{
*((uint32_t *)lutxl_address) = 0U;
*((uint32_t *)lutxh_address) = 0U;
lutxl_address += 8U;
lutxh_address += 8U;
current_line++;
}
}
/* Return function status */
return status;
}
/**
* @brief This function allows to configure one line of LUT.
* @param hgfxmmu GFXMMU handle.
* @param lutLine LUT line parameters.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_GFXMMU_ConfigLutLine(GFXMMU_HandleTypeDef *hgfxmmu, GFXMMU_LutLineTypeDef *lutLine)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_GFXMMU_ALL_INSTANCE(hgfxmmu->Instance));
assert_param(IS_GFXMMU_LUT_LINE(lutLine->LineNumber));
assert_param(IS_GFXMMU_LUT_LINE_STATUS(lutLine->LineStatus));
assert_param(IS_GFXMMU_LUT_BLOCK(lutLine->FirstVisibleBlock));
assert_param(IS_GFXMMU_LUT_BLOCK(lutLine->LastVisibleBlock));
assert_param(IS_GFXMMU_LUT_LINE_OFFSET(lutLine->LineOffset));
/* Check GFXMMU state */
if(hgfxmmu->State != HAL_GFXMMU_STATE_READY)
{
status = HAL_ERROR;
}
else
{
uint32_t lutxl_address, lutxh_address;
/* Initialize local variables */
lutxl_address = (uint32_t) &(hgfxmmu->Instance->LUT[2U * lutLine->LineNumber]);
lutxh_address = (uint32_t) &(hgfxmmu->Instance->LUT[(2U * lutLine->LineNumber) + 1U]);
/* Configure LUT line */
if(lutLine->LineStatus == GFXMMU_LUT_LINE_ENABLE)
{
/* Enable and configure LUT line */
*((uint32_t *)lutxl_address) = (lutLine->LineStatus |
(lutLine->FirstVisibleBlock << GFXMMU_LUTXL_FVB_OFFSET) |
(lutLine->LastVisibleBlock << GFXMMU_LUTXL_LVB_OFFSET));
*((uint32_t *)lutxh_address) = (uint32_t) lutLine->LineOffset;
}
else
{
/* Disable LUT line */
*((uint32_t *)lutxl_address) = 0U;
*((uint32_t *)lutxh_address) = 0U;
}
}
/* Return function status */
return status;
}
/**
* @brief This function allows to modify physical buffer addresses.
* @param hgfxmmu GFXMMU handle.
* @param Buffers Buffers parameters.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_GFXMMU_ModifyBuffers(GFXMMU_HandleTypeDef *hgfxmmu, GFXMMU_BuffersTypeDef *Buffers)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_GFXMMU_ALL_INSTANCE(hgfxmmu->Instance));
assert_param(IS_GFXMMU_BUFFER_ADDRESS(Buffers->Buf0Address));
assert_param(IS_GFXMMU_BUFFER_ADDRESS(Buffers->Buf1Address));
assert_param(IS_GFXMMU_BUFFER_ADDRESS(Buffers->Buf2Address));
assert_param(IS_GFXMMU_BUFFER_ADDRESS(Buffers->Buf3Address));
/* Check GFXMMU state */
if(hgfxmmu->State != HAL_GFXMMU_STATE_READY)
{
status = HAL_ERROR;
}
else
{
/* Modify physical buffer addresses on GFXMMU_BxCR registers */
hgfxmmu->Instance->B0CR = Buffers->Buf0Address;
hgfxmmu->Instance->B1CR = Buffers->Buf1Address;
hgfxmmu->Instance->B2CR = Buffers->Buf2Address;
hgfxmmu->Instance->B3CR = Buffers->Buf3Address;
}
/* Return function status */
return status;
}
/**
* @brief This function handles the GFXMMU interrupts.
* @param hgfxmmu GFXMMU handle.
* @retval None.
*/
void HAL_GFXMMU_IRQHandler(GFXMMU_HandleTypeDef *hgfxmmu)
{
uint32_t flags, interrupts, error;
/* Read current flags and interrupts and determine which error occurs */
flags = hgfxmmu->Instance->SR;
interrupts = (hgfxmmu->Instance->CR & GFXMMU_CR_ITS_MASK);
error = (flags & interrupts);
if(error != 0U)
{
/* Clear flags on GFXMMU_FCR register */
hgfxmmu->Instance->FCR = error;
/* Update GFXMMU error code */
hgfxmmu->ErrorCode |= error;
/* Call GFXMMU error callback */
#if (USE_HAL_GFXMMU_REGISTER_CALLBACKS == 1)
hgfxmmu->ErrorCallback(hgfxmmu);
#else
HAL_GFXMMU_ErrorCallback(hgfxmmu);
#endif
}
}
/**
* @brief Error callback.
* @param hgfxmmu GFXMMU handle.
* @retval None.
*/
__weak void HAL_GFXMMU_ErrorCallback(GFXMMU_HandleTypeDef *hgfxmmu)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hgfxmmu);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_GFXMMU_ErrorCallback could be implemented in the user file.
*/
}
/**
* @}
*/
/** @defgroup GFXMMU_Exported_Functions_Group3 State functions
* @brief GFXMMU state functions
*
@verbatim
==============================================================================
##### State functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Get GFXMMU handle state.
(+) Get GFXMMU error code.
@endverbatim
* @{
*/
/**
* @brief This function allows to get the current GFXMMU handle state.
* @param hgfxmmu GFXMMU handle.
* @retval GFXMMU state.
*/
HAL_GFXMMU_StateTypeDef HAL_GFXMMU_GetState(GFXMMU_HandleTypeDef *hgfxmmu)
{
/* Return GFXMMU handle state */
return hgfxmmu->State;
}
/**
* @brief This function allows to get the current GFXMMU error code.
* @param hgfxmmu GFXMMU handle.
* @retval GFXMMU error code.
*/
uint32_t HAL_GFXMMU_GetError(GFXMMU_HandleTypeDef *hgfxmmu)
{
uint32_t error_code;
/* Enter in critical section */
__disable_irq();
/* Store and reset GFXMMU error code */
error_code = hgfxmmu->ErrorCode;
hgfxmmu->ErrorCode = GFXMMU_ERROR_NONE;
/* Exit from critical section */
__enable_irq();
/* Return GFXMMU error code */
return error_code;
}
/**
* @}
*/
/**
* @}
*/
/* End of exported functions -------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/* End of private functions --------------------------------------------------*/
/**
* @}
*/
#endif /* GFXMMU */
#endif /* HAL_GFXMMU_MODULE_ENABLED */
/**
* @}
*/