OV7670 Support
Fork of BSP_DISCO_F746NG by
Diff: Drivers/BSP/STM32746G-Discovery/stm32746g_discovery.c
- Revision:
- 6:e1d9da7fe856
- Child:
- 8:ff634d7a9d9f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Drivers/BSP/STM32746G-Discovery/stm32746g_discovery.c Thu Nov 10 09:57:11 2016 +0100 @@ -0,0 +1,902 @@ +/** + ****************************************************************************** + * @file stm32746g_discovery.c + * @author MCD Application Team + * @version V1.1.1 + * @date 02-June-2016 + * @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>© 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. + * + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32746g_discovery.h" + +void wait_ms(int ms); // MBED to replace HAL_Delay function + +/** @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 V1.1.1 + */ +#define __STM32746G_DISCO_BSP_VERSION_MAIN (0x01) /*!< [31:24] main version */ +#define __STM32746G_DISCO_BSP_VERSION_SUB1 (0x01) /*!< [23:16] sub1 version */ +#define __STM32746G_DISCO_BSP_VERSION_SUB2 (0x01) /*!< [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 == DISCO_LED1) // MBED + { + 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 == DISCO_LED1) // MBED + { + 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 == DISCO_LED1) /* Switch On LED connected to GPIO */ // MBED + { + 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 == DISCO_LED1) /* Switch Off LED connected to GPIO */ // MBED + { + 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 == DISCO_LED1) /* Toggle LED connected to GPIO */ // MBED + { + 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); // MBED + wait_ms(Delay); // MBED +} + +/********************************* 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); // MBED + wait_ms(Delay); // MBED +} + +/******************************** 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); // MBED + wait_ms(Delay); // MBED +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/