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eez-flow-template-stm32f746.../Drivers/BSP/STM32746G-Discovery/stm32746g_discovery.c

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/**
******************************************************************************
* @file stm32746g_discovery.c
* @author MCD Application Team
* @brief This file provides a set of firmware functions to manage LEDs,
* push-buttons and COM ports available on STM32746G-Discovery
* board(MB1191) from STMicroelectronics.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Dependencies
- stm32f7xx_hal_cortex.c
- stm32f7xx_hal_gpio.c
- stm32f7xx_hal_uart.c
- stm32f7xx_hal_i2c.c
EndDependencies */
/* Includes ------------------------------------------------------------------*/
#include "stm32746g_discovery.h"
/** @addtogroup BSP
* @{
*/
/** @addtogroup STM32746G_DISCOVERY
* @{
*/
/** @defgroup STM32746G_DISCOVERY_LOW_LEVEL STM32746G_DISCOVERY_LOW_LEVEL
* @{
*/
/** @defgroup STM32746G_DISCOVERY_LOW_LEVEL_Private_TypesDefinitions STM32746G_DISCOVERY_LOW_LEVEL Private Types Definitions
* @{
*/
/**
* @}
*/
/** @defgroup STM32746G_DISCOVERY_LOW_LEVEL_Private_Defines STM32746G_DISCOVERY_LOW_LEVEL Private Defines
* @{
*/
/**
* @brief STM32746G DISCOVERY BSP Driver version number V2.0.2
*/
#define __STM32746G_DISCO_BSP_VERSION_MAIN (0x02) /*!< [31:24] main version */
#define __STM32746G_DISCO_BSP_VERSION_SUB1 (0x00) /*!< [23:16] sub1 version */
#define __STM32746G_DISCO_BSP_VERSION_SUB2 (0x02) /*!< [15:8] sub2 version */
#define __STM32746G_DISCO_BSP_VERSION_RC (0x00) /*!< [7:0] release candidate */
#define __STM32746G_DISCO_BSP_VERSION ((__STM32746G_DISCO_BSP_VERSION_MAIN << 24)\
|(__STM32746G_DISCO_BSP_VERSION_SUB1 << 16)\
|(__STM32746G_DISCO_BSP_VERSION_SUB2 << 8 )\
|(__STM32746G_DISCO_BSP_VERSION_RC))
/**
* @}
*/
/** @defgroup STM32746G_DISCOVERY_LOW_LEVEL_Private_Macros STM32746G_DISCOVERY_LOW_LEVEL Private Macros
* @{
*/
/**
* @}
*/
/** @defgroup STM32746G_DISCOVERY_LOW_LEVEL_Private_Variables STM32746G_DISCOVERY_LOW_LEVEL Private Variables
* @{
*/
const uint32_t GPIO_PIN[LEDn] = {LED1_PIN};
GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {WAKEUP_BUTTON_GPIO_PORT,
TAMPER_BUTTON_GPIO_PORT,
KEY_BUTTON_GPIO_PORT};
const uint16_t BUTTON_PIN[BUTTONn] = {WAKEUP_BUTTON_PIN,
TAMPER_BUTTON_PIN,
KEY_BUTTON_PIN};
const uint16_t BUTTON_IRQn[BUTTONn] = {WAKEUP_BUTTON_EXTI_IRQn,
TAMPER_BUTTON_EXTI_IRQn,
KEY_BUTTON_EXTI_IRQn};
USART_TypeDef* COM_USART[COMn] = {DISCOVERY_COM1};
GPIO_TypeDef* COM_TX_PORT[COMn] = {DISCOVERY_COM1_TX_GPIO_PORT};
GPIO_TypeDef* COM_RX_PORT[COMn] = {DISCOVERY_COM1_RX_GPIO_PORT};
const uint16_t COM_TX_PIN[COMn] = {DISCOVERY_COM1_TX_PIN};
const uint16_t COM_RX_PIN[COMn] = {DISCOVERY_COM1_RX_PIN};
const uint16_t COM_TX_AF[COMn] = {DISCOVERY_COM1_TX_AF};
const uint16_t COM_RX_AF[COMn] = {DISCOVERY_COM1_RX_AF};
static I2C_HandleTypeDef hI2cAudioHandler = {0};
static I2C_HandleTypeDef hI2cExtHandler = {0};
/**
* @}
*/
/** @defgroup STM32746G_DISCOVERY_LOW_LEVEL_Private_FunctionPrototypes STM32746G_DISCOVERY_LOW_LEVEL Private Function Prototypes
* @{
*/
static void I2Cx_MspInit(I2C_HandleTypeDef *i2c_handler);
static void I2Cx_Init(I2C_HandleTypeDef *i2c_handler);
static HAL_StatusTypeDef I2Cx_ReadMultiple(I2C_HandleTypeDef *i2c_handler, uint8_t Addr, uint16_t Reg, uint16_t MemAddSize, uint8_t *Buffer, uint16_t Length);
static HAL_StatusTypeDef I2Cx_WriteMultiple(I2C_HandleTypeDef *i2c_handler, uint8_t Addr, uint16_t Reg, uint16_t MemAddSize, uint8_t *Buffer, uint16_t Length);
static HAL_StatusTypeDef I2Cx_IsDeviceReady(I2C_HandleTypeDef *i2c_handler, uint16_t DevAddress, uint32_t Trials);
static void I2Cx_Error(I2C_HandleTypeDef *i2c_handler, uint8_t Addr);
/* AUDIO IO functions */
void AUDIO_IO_Init(void);
void AUDIO_IO_DeInit(void);
void AUDIO_IO_Write(uint8_t Addr, uint16_t Reg, uint16_t Value);
uint16_t AUDIO_IO_Read(uint8_t Addr, uint16_t Reg);
void AUDIO_IO_Delay(uint32_t Delay);
/* TOUCHSCREEN IO functions */
void TS_IO_Init(void);
void TS_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value);
uint8_t TS_IO_Read(uint8_t Addr, uint8_t Reg);
void TS_IO_Delay(uint32_t Delay);
/* CAMERA IO functions */
void CAMERA_IO_Init(void);
void CAMERA_Delay(uint32_t Delay);
void CAMERA_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value);
uint8_t CAMERA_IO_Read(uint8_t Addr, uint8_t Reg);
/* I2C EEPROM IO function */
void EEPROM_IO_Init(void);
HAL_StatusTypeDef EEPROM_IO_WriteData(uint16_t DevAddress, uint16_t MemAddress, uint8_t* pBuffer, uint32_t BufferSize);
HAL_StatusTypeDef EEPROM_IO_ReadData(uint16_t DevAddress, uint16_t MemAddress, uint8_t* pBuffer, uint32_t BufferSize);
HAL_StatusTypeDef EEPROM_IO_IsDeviceReady(uint16_t DevAddress, uint32_t Trials);
/**
* @}
*/
/** @defgroup STM32746G_DISCOVERY_LOW_LEVEL_Exported_Functions STM32746G_DISCOVERY_LOW_LEVELSTM32746G_DISCOVERY_LOW_LEVEL Exported Functions
* @{
*/
/**
* @brief This method returns the STM32746G DISCOVERY BSP Driver revision
* @retval version: 0xXYZR (8bits for each decimal, R for RC)
*/
uint32_t BSP_GetVersion(void)
{
return __STM32746G_DISCO_BSP_VERSION;
}
/**
* @brief Configures LED on GPIO.
* @param Led: LED to be configured.
* This parameter can be one of the following values:
* @arg LED1
* @retval None
*/
void BSP_LED_Init(Led_TypeDef Led)
{
GPIO_InitTypeDef gpio_init_structure;
GPIO_TypeDef* gpio_led;
if (Led == LED1)
{
gpio_led = LED1_GPIO_PORT;
/* Enable the GPIO_LED clock */
LED1_GPIO_CLK_ENABLE();
/* Configure the GPIO_LED pin */
gpio_init_structure.Pin = GPIO_PIN[Led];
gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP;
gpio_init_structure.Pull = GPIO_PULLUP;
gpio_init_structure.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(gpio_led, &gpio_init_structure);
/* By default, turn off LED */
HAL_GPIO_WritePin(gpio_led, GPIO_PIN[Led], GPIO_PIN_RESET);
}
}
/**
* @brief DeInit LEDs.
* @param Led: LED to be configured.
* This parameter can be one of the following values:
* @arg LED1
* @note Led DeInit does not disable the GPIO clock
* @retval None
*/
void BSP_LED_DeInit(Led_TypeDef Led)
{
GPIO_InitTypeDef gpio_init_structure;
GPIO_TypeDef* gpio_led;
if (Led == LED1)
{
gpio_led = LED1_GPIO_PORT;
/* Turn off LED */
HAL_GPIO_WritePin(gpio_led, GPIO_PIN[Led], GPIO_PIN_RESET);
/* Configure the GPIO_LED pin */
gpio_init_structure.Pin = GPIO_PIN[Led];
HAL_GPIO_DeInit(gpio_led, gpio_init_structure.Pin);
}
}
/**
* @brief Turns selected LED On.
* @param Led: LED to be set on
* This parameter can be one of the following values:
* @arg LED1
* @retval None
*/
void BSP_LED_On(Led_TypeDef Led)
{
GPIO_TypeDef* gpio_led;
if (Led == LED1) /* Switch On LED connected to GPIO */
{
gpio_led = LED1_GPIO_PORT;
HAL_GPIO_WritePin(gpio_led, GPIO_PIN[Led], GPIO_PIN_SET);
}
}
/**
* @brief Turns selected LED Off.
* @param Led: LED to be set off
* This parameter can be one of the following values:
* @arg LED1
* @retval None
*/
void BSP_LED_Off(Led_TypeDef Led)
{
GPIO_TypeDef* gpio_led;
if (Led == LED1) /* Switch Off LED connected to GPIO */
{
gpio_led = LED1_GPIO_PORT;
HAL_GPIO_WritePin(gpio_led, GPIO_PIN[Led], GPIO_PIN_RESET);
}
}
/**
* @brief Toggles the selected LED.
* @param Led: LED to be toggled
* This parameter can be one of the following values:
* @arg LED1
* @retval None
*/
void BSP_LED_Toggle(Led_TypeDef Led)
{
GPIO_TypeDef* gpio_led;
if (Led == LED1) /* Toggle LED connected to GPIO */
{
gpio_led = LED1_GPIO_PORT;
HAL_GPIO_TogglePin(gpio_led, GPIO_PIN[Led]);
}
}
/**
* @brief Configures button GPIO and EXTI Line.
* @param Button: Button to be configured
* This parameter can be one of the following values:
* @arg BUTTON_WAKEUP: Wakeup Push Button
* @arg BUTTON_TAMPER: Tamper Push Button
* @arg BUTTON_KEY: Key Push Button
* @param ButtonMode: Button mode
* This parameter can be one of the following values:
* @arg BUTTON_MODE_GPIO: Button will be used as simple IO
* @arg BUTTON_MODE_EXTI: Button will be connected to EXTI line
* with interrupt generation capability
* @note On STM32746G-Discovery board, the three buttons (Wakeup, Tamper and key buttons)
* are mapped on the same push button named "User"
* on the board serigraphy.
* @retval None
*/
void BSP_PB_Init(Button_TypeDef Button, ButtonMode_TypeDef ButtonMode)
{
GPIO_InitTypeDef gpio_init_structure;
/* Enable the BUTTON clock */
BUTTONx_GPIO_CLK_ENABLE(Button);
if(ButtonMode == BUTTON_MODE_GPIO)
{
/* Configure Button pin as input */
gpio_init_structure.Pin = BUTTON_PIN[Button];
gpio_init_structure.Mode = GPIO_MODE_INPUT;
gpio_init_structure.Pull = GPIO_NOPULL;
gpio_init_structure.Speed = GPIO_SPEED_FAST;
HAL_GPIO_Init(BUTTON_PORT[Button], &gpio_init_structure);
}
if(ButtonMode == BUTTON_MODE_EXTI)
{
/* Configure Button pin as input with External interrupt */
gpio_init_structure.Pin = BUTTON_PIN[Button];
gpio_init_structure.Pull = GPIO_NOPULL;
gpio_init_structure.Speed = GPIO_SPEED_FAST;
if(Button != BUTTON_WAKEUP)
{
gpio_init_structure.Mode = GPIO_MODE_IT_FALLING;
}
else
{
gpio_init_structure.Mode = GPIO_MODE_IT_RISING;
}
HAL_GPIO_Init(BUTTON_PORT[Button], &gpio_init_structure);
/* Enable and set Button EXTI Interrupt to the lowest priority */
HAL_NVIC_SetPriority((IRQn_Type)(BUTTON_IRQn[Button]), 0x0F, 0x00);
HAL_NVIC_EnableIRQ((IRQn_Type)(BUTTON_IRQn[Button]));
}
}
/**
* @brief Push Button DeInit.
* @param Button: Button to be configured
* This parameter can be one of the following values:
* @arg BUTTON_WAKEUP: Wakeup Push Button
* @arg BUTTON_TAMPER: Tamper Push Button
* @arg BUTTON_KEY: Key Push Button
* @note On STM32746G-Discovery board, the three buttons (Wakeup, Tamper and key buttons)
* are mapped on the same push button named "User"
* on the board serigraphy.
* @note PB DeInit does not disable the GPIO clock
* @retval None
*/
void BSP_PB_DeInit(Button_TypeDef Button)
{
GPIO_InitTypeDef gpio_init_structure;
gpio_init_structure.Pin = BUTTON_PIN[Button];
HAL_NVIC_DisableIRQ((IRQn_Type)(BUTTON_IRQn[Button]));
HAL_GPIO_DeInit(BUTTON_PORT[Button], gpio_init_structure.Pin);
}
/**
* @brief Returns the selected button state.
* @param Button: Button to be checked
* This parameter can be one of the following values:
* @arg BUTTON_WAKEUP: Wakeup Push Button
* @arg BUTTON_TAMPER: Tamper Push Button
* @arg BUTTON_KEY: Key Push Button
* @note On STM32746G-Discovery board, the three buttons (Wakeup, Tamper and key buttons)
* are mapped on the same push button named "User"
* on the board serigraphy.
* @retval The Button GPIO pin value
*/
uint32_t BSP_PB_GetState(Button_TypeDef Button)
{
return HAL_GPIO_ReadPin(BUTTON_PORT[Button], BUTTON_PIN[Button]);
}
/**
* @brief Configures COM port.
* @param COM: COM port to be configured.
* This parameter can be one of the following values:
* @arg COM1
* @arg COM2
* @param huart: Pointer to a UART_HandleTypeDef structure that contains the
* configuration information for the specified USART peripheral.
* @retval None
*/
void BSP_COM_Init(COM_TypeDef COM, UART_HandleTypeDef *huart)
{
GPIO_InitTypeDef gpio_init_structure;
/* Enable GPIO clock */
DISCOVERY_COMx_TX_GPIO_CLK_ENABLE(COM);
DISCOVERY_COMx_RX_GPIO_CLK_ENABLE(COM);
/* Enable USART clock */
DISCOVERY_COMx_CLK_ENABLE(COM);
/* Configure USART Tx as alternate function */
gpio_init_structure.Pin = COM_TX_PIN[COM];
gpio_init_structure.Mode = GPIO_MODE_AF_PP;
gpio_init_structure.Speed = GPIO_SPEED_FAST;
gpio_init_structure.Pull = GPIO_PULLUP;
gpio_init_structure.Alternate = COM_TX_AF[COM];
HAL_GPIO_Init(COM_TX_PORT[COM], &gpio_init_structure);
/* Configure USART Rx as alternate function */
gpio_init_structure.Pin = COM_RX_PIN[COM];
gpio_init_structure.Mode = GPIO_MODE_AF_PP;
gpio_init_structure.Alternate = COM_RX_AF[COM];
HAL_GPIO_Init(COM_RX_PORT[COM], &gpio_init_structure);
/* USART configuration */
huart->Instance = COM_USART[COM];
HAL_UART_Init(huart);
}
/**
* @brief DeInit COM port.
* @param COM: COM port to be configured.
* This parameter can be one of the following values:
* @arg COM1
* @arg COM2
* @param huart: Pointer to a UART_HandleTypeDef structure that contains the
* configuration information for the specified USART peripheral.
* @retval None
*/
void BSP_COM_DeInit(COM_TypeDef COM, UART_HandleTypeDef *huart)
{
/* USART configuration */
huart->Instance = COM_USART[COM];
HAL_UART_DeInit(huart);
/* Enable USART clock */
DISCOVERY_COMx_CLK_DISABLE(COM);
/* DeInit GPIO pins can be done in the application
(by surcharging this __weak function) */
/* GPIO pins clock, DMA clock can be shut down in the application
by surcharging this __weak function */
}
/*******************************************************************************
BUS OPERATIONS
*******************************************************************************/
/******************************* I2C Routines *********************************/
/**
* @brief Initializes I2C MSP.
* @param i2c_handler : I2C handler
* @retval None
*/
static void I2Cx_MspInit(I2C_HandleTypeDef *i2c_handler)
{
GPIO_InitTypeDef gpio_init_structure;
if (i2c_handler == (I2C_HandleTypeDef*)(&hI2cAudioHandler))
{
/* AUDIO and LCD I2C MSP init */
/*** Configure the GPIOs ***/
/* Enable GPIO clock */
DISCOVERY_AUDIO_I2Cx_SCL_SDA_GPIO_CLK_ENABLE();
/* Configure I2C Tx as alternate function */
gpio_init_structure.Pin = DISCOVERY_AUDIO_I2Cx_SCL_PIN;
gpio_init_structure.Mode = GPIO_MODE_AF_OD;
gpio_init_structure.Pull = GPIO_NOPULL;
gpio_init_structure.Speed = GPIO_SPEED_FAST;
gpio_init_structure.Alternate = DISCOVERY_AUDIO_I2Cx_SCL_SDA_AF;
HAL_GPIO_Init(DISCOVERY_AUDIO_I2Cx_SCL_SDA_GPIO_PORT, &gpio_init_structure);
/* Configure I2C Rx as alternate function */
gpio_init_structure.Pin = DISCOVERY_AUDIO_I2Cx_SDA_PIN;
HAL_GPIO_Init(DISCOVERY_AUDIO_I2Cx_SCL_SDA_GPIO_PORT, &gpio_init_structure);
/*** Configure the I2C peripheral ***/
/* Enable I2C clock */
DISCOVERY_AUDIO_I2Cx_CLK_ENABLE();
/* Force the I2C peripheral clock reset */
DISCOVERY_AUDIO_I2Cx_FORCE_RESET();
/* Release the I2C peripheral clock reset */
DISCOVERY_AUDIO_I2Cx_RELEASE_RESET();
/* Enable and set I2Cx Interrupt to a lower priority */
HAL_NVIC_SetPriority(DISCOVERY_AUDIO_I2Cx_EV_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(DISCOVERY_AUDIO_I2Cx_EV_IRQn);
/* Enable and set I2Cx Interrupt to a lower priority */
HAL_NVIC_SetPriority(DISCOVERY_AUDIO_I2Cx_ER_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(DISCOVERY_AUDIO_I2Cx_ER_IRQn);
}
else
{
/* External, camera and Arduino connector I2C MSP init */
/*** Configure the GPIOs ***/
/* Enable GPIO clock */
DISCOVERY_EXT_I2Cx_SCL_SDA_GPIO_CLK_ENABLE();
/* Configure I2C Tx as alternate function */
gpio_init_structure.Pin = DISCOVERY_EXT_I2Cx_SCL_PIN;
gpio_init_structure.Mode = GPIO_MODE_AF_OD;
gpio_init_structure.Pull = GPIO_NOPULL;
gpio_init_structure.Speed = GPIO_SPEED_FAST;
gpio_init_structure.Alternate = DISCOVERY_EXT_I2Cx_SCL_SDA_AF;
HAL_GPIO_Init(DISCOVERY_EXT_I2Cx_SCL_SDA_GPIO_PORT, &gpio_init_structure);
/* Configure I2C Rx as alternate function */
gpio_init_structure.Pin = DISCOVERY_EXT_I2Cx_SDA_PIN;
HAL_GPIO_Init(DISCOVERY_EXT_I2Cx_SCL_SDA_GPIO_PORT, &gpio_init_structure);
/*** Configure the I2C peripheral ***/
/* Enable I2C clock */
DISCOVERY_EXT_I2Cx_CLK_ENABLE();
/* Force the I2C peripheral clock reset */
DISCOVERY_EXT_I2Cx_FORCE_RESET();
/* Release the I2C peripheral clock reset */
DISCOVERY_EXT_I2Cx_RELEASE_RESET();
/* Enable and set I2Cx Interrupt to a lower priority */
HAL_NVIC_SetPriority(DISCOVERY_EXT_I2Cx_EV_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(DISCOVERY_EXT_I2Cx_EV_IRQn);
/* Enable and set I2Cx Interrupt to a lower priority */
HAL_NVIC_SetPriority(DISCOVERY_EXT_I2Cx_ER_IRQn, 0x0F, 0);
HAL_NVIC_EnableIRQ(DISCOVERY_EXT_I2Cx_ER_IRQn);
}
}
/**
* @brief Initializes I2C HAL.
* @param i2c_handler : I2C handler
* @retval None
*/
static void I2Cx_Init(I2C_HandleTypeDef *i2c_handler)
{
if(HAL_I2C_GetState(i2c_handler) == HAL_I2C_STATE_RESET)
{
if (i2c_handler == (I2C_HandleTypeDef*)(&hI2cAudioHandler))
{
/* Audio and LCD I2C configuration */
i2c_handler->Instance = DISCOVERY_AUDIO_I2Cx;
}
else
{
/* External, camera and Arduino connector I2C configuration */
i2c_handler->Instance = DISCOVERY_EXT_I2Cx;
}
i2c_handler->Init.Timing = DISCOVERY_I2Cx_TIMING;
i2c_handler->Init.OwnAddress1 = 0;
i2c_handler->Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
i2c_handler->Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
i2c_handler->Init.OwnAddress2 = 0;
i2c_handler->Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
i2c_handler->Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
/* Init the I2C */
I2Cx_MspInit(i2c_handler);
HAL_I2C_Init(i2c_handler);
}
}
/**
* @brief Reads multiple data.
* @param i2c_handler : I2C handler
* @param Addr: I2C address
* @param Reg: Reg address
* @param MemAddress: Memory address
* @param Buffer: Pointer to data buffer
* @param Length: Length of the data
* @retval Number of read data
*/
static HAL_StatusTypeDef I2Cx_ReadMultiple(I2C_HandleTypeDef *i2c_handler,
uint8_t Addr,
uint16_t Reg,
uint16_t MemAddress,
uint8_t *Buffer,
uint16_t Length)
{
HAL_StatusTypeDef status = HAL_OK;
status = HAL_I2C_Mem_Read(i2c_handler, Addr, (uint16_t)Reg, MemAddress, Buffer, Length, 1000);
/* Check the communication status */
if(status != HAL_OK)
{
/* I2C error occurred */
I2Cx_Error(i2c_handler, Addr);
}
return status;
}
/**
* @brief Writes a value in a register of the device through BUS in using DMA mode.
* @param i2c_handler : I2C handler
* @param Addr: Device address on BUS Bus.
* @param Reg: The target register address to write
* @param MemAddress: Memory address
* @param Buffer: The target register value to be written
* @param Length: buffer size to be written
* @retval HAL status
*/
static HAL_StatusTypeDef I2Cx_WriteMultiple(I2C_HandleTypeDef *i2c_handler,
uint8_t Addr,
uint16_t Reg,
uint16_t MemAddress,
uint8_t *Buffer,
uint16_t Length)
{
HAL_StatusTypeDef status = HAL_OK;
status = HAL_I2C_Mem_Write(i2c_handler, Addr, (uint16_t)Reg, MemAddress, Buffer, Length, 1000);
/* Check the communication status */
if(status != HAL_OK)
{
/* Re-Initiaize the I2C Bus */
I2Cx_Error(i2c_handler, Addr);
}
return status;
}
/**
* @brief Checks if target device is ready for communication.
* @note This function is used with Memory devices
* @param i2c_handler : I2C handler
* @param DevAddress: Target device address
* @param Trials: Number of trials
* @retval HAL status
*/
static HAL_StatusTypeDef I2Cx_IsDeviceReady(I2C_HandleTypeDef *i2c_handler, uint16_t DevAddress, uint32_t Trials)
{
return (HAL_I2C_IsDeviceReady(i2c_handler, DevAddress, Trials, 1000));
}
/**
* @brief Manages error callback by re-initializing I2C.
* @param i2c_handler : I2C handler
* @param Addr: I2C Address
* @retval None
*/
static void I2Cx_Error(I2C_HandleTypeDef *i2c_handler, uint8_t Addr)
{
/* De-initialize the I2C communication bus */
HAL_I2C_DeInit(i2c_handler);
/* Re-Initialize the I2C communication bus */
I2Cx_Init(i2c_handler);
}
/*******************************************************************************
LINK OPERATIONS
*******************************************************************************/
/********************************* LINK AUDIO *********************************/
/**
* @brief Initializes Audio low level.
* @retval None
*/
void AUDIO_IO_Init(void)
{
I2Cx_Init(&hI2cAudioHandler);
}
/**
* @brief Deinitializes Audio low level.
* @retval None
*/
void AUDIO_IO_DeInit(void)
{
}
/**
* @brief Writes a single data.
* @param Addr: I2C address
* @param Reg: Reg address
* @param Value: Data to be written
* @retval None
*/
void AUDIO_IO_Write(uint8_t Addr, uint16_t Reg, uint16_t Value)
{
uint16_t tmp = Value;
Value = ((uint16_t)(tmp >> 8) & 0x00FF);
Value |= ((uint16_t)(tmp << 8)& 0xFF00);
I2Cx_WriteMultiple(&hI2cAudioHandler, Addr, Reg, I2C_MEMADD_SIZE_16BIT,(uint8_t*)&Value, 2);
}
/**
* @brief Reads a single data.
* @param Addr: I2C address
* @param Reg: Reg address
* @retval Data to be read
*/
uint16_t AUDIO_IO_Read(uint8_t Addr, uint16_t Reg)
{
uint16_t read_value = 0, tmp = 0;
I2Cx_ReadMultiple(&hI2cAudioHandler, Addr, Reg, I2C_MEMADD_SIZE_16BIT, (uint8_t*)&read_value, 2);
tmp = ((uint16_t)(read_value >> 8) & 0x00FF);
tmp |= ((uint16_t)(read_value << 8)& 0xFF00);
read_value = tmp;
return read_value;
}
/**
* @brief AUDIO Codec delay
* @param Delay: Delay in ms
* @retval None
*/
void AUDIO_IO_Delay(uint32_t Delay)
{
HAL_Delay(Delay);
}
/********************************* LINK CAMERA ********************************/
/**
* @brief Initializes Camera low level.
* @retval None
*/
void CAMERA_IO_Init(void)
{
I2Cx_Init(&hI2cExtHandler);
}
/**
* @brief Camera writes single data.
* @param Addr: I2C address
* @param Reg: Register address
* @param Value: Data to be written
* @retval None
*/
void CAMERA_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value)
{
I2Cx_WriteMultiple(&hI2cExtHandler, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT,(uint8_t*)&Value, 1);
}
/**
* @brief Camera reads single data.
* @param Addr: I2C address
* @param Reg: Register address
* @retval Read data
*/
uint8_t CAMERA_IO_Read(uint8_t Addr, uint8_t Reg)
{
uint8_t read_value = 0;
I2Cx_ReadMultiple(&hI2cExtHandler, Addr, Reg, I2C_MEMADD_SIZE_8BIT, (uint8_t*)&read_value, 1);
return read_value;
}
/**
* @brief Camera delay
* @param Delay: Delay in ms
* @retval None
*/
void CAMERA_Delay(uint32_t Delay)
{
HAL_Delay(Delay);
}
/******************************** LINK I2C EEPROM *****************************/
/**
* @brief Initializes peripherals used by the I2C EEPROM driver.
* @retval None
*/
void EEPROM_IO_Init(void)
{
I2Cx_Init(&hI2cExtHandler);
}
/**
* @brief Write data to I2C EEPROM driver in using DMA channel.
* @param DevAddress: Target device address
* @param MemAddress: Internal memory address
* @param pBuffer: Pointer to data buffer
* @param BufferSize: Amount of data to be sent
* @retval HAL status
*/
HAL_StatusTypeDef EEPROM_IO_WriteData(uint16_t DevAddress, uint16_t MemAddress, uint8_t* pBuffer, uint32_t BufferSize)
{
return (I2Cx_WriteMultiple(&hI2cExtHandler, DevAddress, MemAddress, I2C_MEMADD_SIZE_16BIT, pBuffer, BufferSize));
}
/**
* @brief Read data from I2C EEPROM driver in using DMA channel.
* @param DevAddress: Target device address
* @param MemAddress: Internal memory address
* @param pBuffer: Pointer to data buffer
* @param BufferSize: Amount of data to be read
* @retval HAL status
*/
HAL_StatusTypeDef EEPROM_IO_ReadData(uint16_t DevAddress, uint16_t MemAddress, uint8_t* pBuffer, uint32_t BufferSize)
{
return (I2Cx_ReadMultiple(&hI2cExtHandler, DevAddress, MemAddress, I2C_MEMADD_SIZE_16BIT, pBuffer, BufferSize));
}
/**
* @brief Checks if target device is ready for communication.
* @note This function is used with Memory devices
* @param DevAddress: Target device address
* @param Trials: Number of trials
* @retval HAL status
*/
HAL_StatusTypeDef EEPROM_IO_IsDeviceReady(uint16_t DevAddress, uint32_t Trials)
{
return (I2Cx_IsDeviceReady(&hI2cExtHandler, DevAddress, Trials));
}
/********************************* LINK TOUCHSCREEN *********************************/
/**
* @brief Initializes Touchscreen low level.
* @retval None
*/
void TS_IO_Init(void)
{
I2Cx_Init(&hI2cAudioHandler);
}
/**
* @brief Writes a single data.
* @param Addr: I2C address
* @param Reg: Reg address
* @param Value: Data to be written
* @retval None
*/
void TS_IO_Write(uint8_t Addr, uint8_t Reg, uint8_t Value)
{
I2Cx_WriteMultiple(&hI2cAudioHandler, Addr, (uint16_t)Reg, I2C_MEMADD_SIZE_8BIT,(uint8_t*)&Value, 1);
}
/**
* @brief Reads a single data.
* @param Addr: I2C address
* @param Reg: Reg address
* @retval Data to be read
*/
uint8_t TS_IO_Read(uint8_t Addr, uint8_t Reg)
{
uint8_t read_value = 0;
I2Cx_ReadMultiple(&hI2cAudioHandler, Addr, Reg, I2C_MEMADD_SIZE_8BIT, (uint8_t*)&read_value, 1);
return read_value;
}
/**
* @brief TS delay
* @param Delay: Delay in ms
* @retval None
*/
void TS_IO_Delay(uint32_t Delay)
{
HAL_Delay(Delay);
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/