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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_smbus.c@634:ac7d6880524d, 2015-09-28 (annotated)

Committer:
mbed_official
Date:
Mon Sep 28 20:15:09 2015 +0100
Revision:
634:ac7d6880524d
Parent:
632:7687fb9c4f91 
Synchronized with git revision 9b7d23d47153c298a6d24de9a415202705889d11



Full URL: https://github.com/mbedmicro/mbed/commit/9b7d23d47153c298a6d24de9a415202705889d11/



Revert "[NUCLEO_F303K8] add support of the STM32F303K8"

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 237:f3da66175598 1 /**
mbed_official 237:f3da66175598 2 ******************************************************************************
mbed_official 237:f3da66175598 3 * @file stm32f3xx_hal_smbus.c
mbed_official 237:f3da66175598 4 * @author MCD Application Team
mbed_official 634:ac7d6880524d 5 * @version V1.1.0
mbed_official 634:ac7d6880524d 6 * @date 12-Sept-2014
mbed_official 237:f3da66175598 7 * @brief SMBUS HAL module driver.
mbed_official 237:f3da66175598 8 *
mbed_official 237:f3da66175598 9 * This file provides firmware functions to manage the following
mbed_official 237:f3da66175598 10 * functionalities of the System Management Bus (SMBus) peripheral,
mbed_official 237:f3da66175598 11 * based on I2C principales of operation :
mbed_official 237:f3da66175598 12 * + Initialization and de-initialization functions
mbed_official 237:f3da66175598 13 * + IO operation functions
mbed_official 237:f3da66175598 14 * + Peripheral State and Errors functions
mbed_official 237:f3da66175598 15 *
mbed_official 237:f3da66175598 16 @verbatim
mbed_official 237:f3da66175598 17 ==============================================================================
mbed_official 237:f3da66175598 18 ##### How to use this driver #####
mbed_official 237:f3da66175598 19 ==============================================================================
mbed_official 237:f3da66175598 20 [..]
mbed_official 237:f3da66175598 21 The SMBUS HAL driver can be used as follows:
mbed_official 237:f3da66175598 22
mbed_official 237:f3da66175598 23 (#) Declare a SMBUS_HandleTypeDef handle structure, for example:
mbed_official 237:f3da66175598 24 SMBUS_HandleTypeDef hsmbus;
mbed_official 237:f3da66175598 25
mbed_official 237:f3da66175598 26 (#)Initialize the SMBUS low level resources by implement the HAL_SMBUS_MspInit ()API:
mbed_official 237:f3da66175598 27 (##) Enable the SMBUSx interface clock
mbed_official 237:f3da66175598 28 (##) SMBUS pins configuration
mbed_official 237:f3da66175598 29 (+++) Enable the clock for the SMBUS GPIOs
mbed_official 237:f3da66175598 30 (+++) Configure SMBUS pins as alternate function open-drain
mbed_official 237:f3da66175598 31 (##) NVIC configuration if you need to use interrupt process
mbed_official 237:f3da66175598 32 (+++) Configure the SMBUSx interrupt priority
mbed_official 237:f3da66175598 33 (+++) Enable the NVIC SMBUS IRQ Channel
mbed_official 237:f3da66175598 34
mbed_official 237:f3da66175598 35 (#) Configure the Communication Clock Timing, Bus Timeout, Own Address1, Master Adressing Mode,
mbed_official 237:f3da66175598 36 Dual Addressing mode, Own Address2, Own Address2 Mask, General call, Nostretch mode,
mbed_official 237:f3da66175598 37 Peripheral mode and Packet Error Check mode in the hsmbus Init structure.
mbed_official 237:f3da66175598 38
mbed_official 237:f3da66175598 39 (#) Initialize the SMBUS registers by calling the HAL_SMBUS_Init() API:
mbed_official 237:f3da66175598 40 (+) These API's configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
mbed_official 237:f3da66175598 41 by calling the customed HAL_SMBUS_MspInit(&hsmbus) API.
mbed_official 237:f3da66175598 42
mbed_official 237:f3da66175598 43 (#) To check if target device is ready for communication, use the function HAL_SMBUS_IsDeviceReady()
mbed_official 237:f3da66175598 44
mbed_official 237:f3da66175598 45 (#) For SMBUS IO operations, only one mode of operations is available within this driver :
mbed_official 237:f3da66175598 46
mbed_official 237:f3da66175598 47 *** Interrupt mode IO operation ***
mbed_official 237:f3da66175598 48 ===================================
mbed_official 237:f3da66175598 49 [..]
mbed_official 237:f3da66175598 50 (+) Transmit in master/host SMBUS mode an amount of data in non blocking mode using HAL_SMBUS_Master_Transmit_IT()
mbed_official 237:f3da66175598 51 (++) At transmission end of transfer HAL_SMBUS_MasterTxCpltCallback is executed and user can
mbed_official 237:f3da66175598 52 add his own code by customization of function pointer HAL_SMBUS_MasterTxCpltCallback
mbed_official 237:f3da66175598 53 (+) Receive in master/host SMBUS mode an amount of data in non blocking mode using HAL_SMBUS_Master_Receive_IT()
mbed_official 237:f3da66175598 54 (++) At reception end of transfer HAL_SMBUS_MasterRxCpltCallback is executed and user can
mbed_official 237:f3da66175598 55 add his own code by customization of function pointer HAL_SMBUS_MasterRxCpltCallback
mbed_official 237:f3da66175598 56 (+) Abort a master/host SMBUS process commnunication with Interrupt using HAL_SMBUS_Master_Abort_IT()
mbed_official 237:f3da66175598 57 (++) The associated previous transfer callback is called at the end of abort process
mbed_official 237:f3da66175598 58 (++) mean HAL_SMBUS_MasterTxCpltCallback in case of previous state was master transmit
mbed_official 237:f3da66175598 59 (++) mean HAL_SMBUS_MasterRxCpltCallback in case of previous state was master receive
mbed_official 237:f3da66175598 60 (+) Enable/disable the Address listen mode in slave/device or host/slave SMBUS mode
mbed_official 237:f3da66175598 61 using HAL_SMBUS_Slave_Listen_IT() HAL_SMBUS_DisableListen_IT()
mbed_official 237:f3da66175598 62 (++) When address slave/device SMBUS match, HAL_SMBUS_SlaveAddrCallback is executed and user can
mbed_official 237:f3da66175598 63 add his own code to check the Address Match Code and the transmission direction request by master/host (Write/Read).
mbed_official 237:f3da66175598 64 (++) At Listen mode end HAL_SMBUS_SlaveListenCpltCallback is executed and user can
mbed_official 237:f3da66175598 65 add his own code by customization of function pointer HAL_SMBUS_SlaveListenCpltCallback
mbed_official 237:f3da66175598 66 (+) Transmit in slave/device SMBUS mode an amount of data in non blocking mode using HAL_SMBUS_Slave_Transmit_IT()
mbed_official 237:f3da66175598 67 (++) At transmission end of transfer HAL_SMBUS_SlaveTxCpltCallback is executed and user can
mbed_official 237:f3da66175598 68 add his own code by customization of function pointer HAL_SMBUS_SlaveTxCpltCallback
mbed_official 237:f3da66175598 69 (+) Receive in slave/device SMBUS mode an amount of data in non blocking mode using HAL_SMBUS_Slave_Receive_IT()
mbed_official 237:f3da66175598 70 (++) At reception end of transfer HAL_SMBUS_SlaveRxCpltCallback is executed and user can
mbed_official 237:f3da66175598 71 add his own code by customization of function pointer HAL_SMBUS_SlaveRxCpltCallback
mbed_official 237:f3da66175598 72 (+) Enable/Disable the SMBUS alert mode using HAL_SMBUS_EnableAlert_IT() HAL_SMBUS_DisableAlert_IT()
mbed_official 237:f3da66175598 73 (++) When SMBUS Alert is generated HAL_SMBUS_ErrorCallback() is executed and user can
mbed_official 237:f3da66175598 74 add his own code by customization of function pointer HAL_SMBUS_ErrorCallback
mbed_official 237:f3da66175598 75 to check the Alert Error Code using function HAL_SMBUS_GetError()
mbed_official 237:f3da66175598 76 (+) Get HAL state machine or error values using HAL_SMBUS_GetState() or HAL_SMBUS_GetError()
mbed_official 237:f3da66175598 77 (+) In case of transfer Error, HAL_SMBUS_ErrorCallback() function is executed and user can
mbed_official 237:f3da66175598 78 add his own code by customization of function pointer HAL_SMBUS_ErrorCallback
mbed_official 237:f3da66175598 79 to check the Error Code using function HAL_SMBUS_GetError()
mbed_official 237:f3da66175598 80
mbed_official 237:f3da66175598 81 *** SMBUS HAL driver macros list ***
mbed_official 237:f3da66175598 82 ==================================
mbed_official 237:f3da66175598 83 [..]
mbed_official 237:f3da66175598 84 Below the list of most used macros in SMBUS HAL driver.
mbed_official 237:f3da66175598 85
mbed_official 237:f3da66175598 86 (+) __HAL_SMBUS_ENABLE: Enable the SMBUS peripheral
mbed_official 237:f3da66175598 87 (+) __HAL_SMBUS_DISABLE: Disable the SMBUS peripheral
mbed_official 237:f3da66175598 88 (+) __HAL_SMBUS_GET_FLAG : Checks whether the specified SMBUS flag is set or not
mbed_official 237:f3da66175598 89 (+) __HAL_SMBUS_CLEAR_FLAG : Clears the specified SMBUS pending flag
mbed_official 237:f3da66175598 90 (+) __HAL_SMBUS_ENABLE_IT: Enables the specified SMBUS interrupt
mbed_official 237:f3da66175598 91 (+) __HAL_SMBUS_DISABLE_IT: Disables the specified SMBUS interrupt
mbed_official 237:f3da66175598 92
mbed_official 237:f3da66175598 93 [..]
mbed_official 237:f3da66175598 94 (@) You can refer to the SMBUS HAL driver header file for more useful macros
mbed_official 237:f3da66175598 95
mbed_official 237:f3da66175598 96
mbed_official 237:f3da66175598 97 @endverbatim
mbed_official 237:f3da66175598 98 ******************************************************************************
mbed_official 237:f3da66175598 99 * @attention
mbed_official 237:f3da66175598 100 *
mbed_official 634:ac7d6880524d 101 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 237:f3da66175598 102 *
mbed_official 237:f3da66175598 103 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 237:f3da66175598 104 * are permitted provided that the following conditions are met:
mbed_official 237:f3da66175598 105 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 237:f3da66175598 106 * this list of conditions and the following disclaimer.
mbed_official 237:f3da66175598 107 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 237:f3da66175598 108 * this list of conditions and the following disclaimer in the documentation
mbed_official 237:f3da66175598 109 * and/or other materials provided with the distribution.
mbed_official 237:f3da66175598 110 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 237:f3da66175598 111 * may be used to endorse or promote products derived from this software
mbed_official 237:f3da66175598 112 * without specific prior written permission.
mbed_official 237:f3da66175598 113 *
mbed_official 237:f3da66175598 114 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 237:f3da66175598 115 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 237:f3da66175598 116 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 237:f3da66175598 117 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 237:f3da66175598 118 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 237:f3da66175598 119 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 237:f3da66175598 120 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 237:f3da66175598 121 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 237:f3da66175598 122 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 237:f3da66175598 123 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 237:f3da66175598 124 *
mbed_official 237:f3da66175598 125 ******************************************************************************
mbed_official 237:f3da66175598 126 */
mbed_official 237:f3da66175598 127
mbed_official 237:f3da66175598 128 /* Includes ------------------------------------------------------------------*/
mbed_official 237:f3da66175598 129 #include "stm32f3xx_hal.h"
mbed_official 237:f3da66175598 130
mbed_official 237:f3da66175598 131 /** @addtogroup STM32F3xx_HAL_Driver
mbed_official 237:f3da66175598 132 * @{
mbed_official 237:f3da66175598 133 */
mbed_official 237:f3da66175598 134
mbed_official 375:3d36234a1087 135 /** @defgroup SMBUS SMBUS HAL module driver
mbed_official 237:f3da66175598 136 * @brief SMBUS HAL module driver
mbed_official 237:f3da66175598 137 * @{
mbed_official 237:f3da66175598 138 */
mbed_official 237:f3da66175598 139
mbed_official 237:f3da66175598 140 #ifdef HAL_SMBUS_MODULE_ENABLED
mbed_official 237:f3da66175598 141
mbed_official 237:f3da66175598 142 /* Private typedef -----------------------------------------------------------*/
mbed_official 237:f3da66175598 143 /* Private define ------------------------------------------------------------*/
mbed_official 375:3d36234a1087 144 /** @defgroup SMBUS_Private_Define SMBUS Private Define
mbed_official 375:3d36234a1087 145 * @{
mbed_official 375:3d36234a1087 146 */
mbed_official 237:f3da66175598 147 #define TIMING_CLEAR_MASK ((uint32_t)0xF0FFFFFF) /*<! SMBUS TIMING clear register Mask */
mbed_official 237:f3da66175598 148 #define HAL_TIMEOUT_ADDR ((uint32_t)10000) /* 10 s */
mbed_official 237:f3da66175598 149 #define HAL_TIMEOUT_BUSY ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 150 #define HAL_TIMEOUT_DIR ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 151 #define HAL_TIMEOUT_RXNE ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 152 #define HAL_TIMEOUT_STOPF ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 153 #define HAL_TIMEOUT_TC ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 154 #define HAL_TIMEOUT_TCR ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 155 #define HAL_TIMEOUT_TXIS ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 156 #define MAX_NBYTE_SIZE 255
mbed_official 375:3d36234a1087 157 /**
mbed_official 375:3d36234a1087 158 * @}
mbed_official 375:3d36234a1087 159 */
mbed_official 237:f3da66175598 160
mbed_official 237:f3da66175598 161 /* Private macro -------------------------------------------------------------*/
mbed_official 375:3d36234a1087 162 /** @defgroup SMBUS_Private_Macro SMBUS Private Macro
mbed_official 375:3d36234a1087 163 * @{
mbed_official 375:3d36234a1087 164 */
mbed_official 237:f3da66175598 165 #define __SMBUS_GET_ISR_REG(__HANDLE__) ((__HANDLE__)->Instance->ISR)
mbed_official 237:f3da66175598 166 #define __SMBUS_CHECK_FLAG(__ISR__, __FLAG__) ((((__ISR__) & ((__FLAG__) & SMBUS_FLAG_MASK)) == ((__FLAG__) & SMBUS_FLAG_MASK)))
mbed_official 375:3d36234a1087 167 /**
mbed_official 375:3d36234a1087 168 * @}
mbed_official 375:3d36234a1087 169 */
mbed_official 237:f3da66175598 170
mbed_official 237:f3da66175598 171 /* Private variables ---------------------------------------------------------*/
mbed_official 237:f3da66175598 172 /* Private function prototypes -----------------------------------------------*/
mbed_official 375:3d36234a1087 173 /** @defgroup SMBUS_Private_Functions SMBUS Private Functions
mbed_official 375:3d36234a1087 174 * @{
mbed_official 375:3d36234a1087 175 */
mbed_official 237:f3da66175598 176 static HAL_StatusTypeDef SMBUS_WaitOnFlagUntilTimeout(SMBUS_HandleTypeDef *hsmbus, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
mbed_official 237:f3da66175598 177
mbed_official 237:f3da66175598 178 static HAL_StatusTypeDef SMBUS_Enable_IRQ(SMBUS_HandleTypeDef *hsmbus, uint16_t InterruptRequest);
mbed_official 237:f3da66175598 179 static HAL_StatusTypeDef SMBUS_Disable_IRQ(SMBUS_HandleTypeDef *hsmbus, uint16_t InterruptRequest);
mbed_official 237:f3da66175598 180 static HAL_StatusTypeDef SMBUS_Master_ISR(SMBUS_HandleTypeDef *hsmbus);
mbed_official 237:f3da66175598 181 static HAL_StatusTypeDef SMBUS_Slave_ISR(SMBUS_HandleTypeDef *hsmbus);
mbed_official 237:f3da66175598 182
mbed_official 237:f3da66175598 183 static void SMBUS_TransferConfig(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint8_t Size, uint32_t Mode, uint32_t Request);
mbed_official 375:3d36234a1087 184 /**
mbed_official 375:3d36234a1087 185 * @}
mbed_official 375:3d36234a1087 186 */
mbed_official 237:f3da66175598 187
mbed_official 375:3d36234a1087 188 /* Exported functions ---------------------------------------------------------*/
mbed_official 237:f3da66175598 189
mbed_official 375:3d36234a1087 190 /** @defgroup SMBUS_Exported_Functions SMBUS Exported Functions
mbed_official 237:f3da66175598 191 * @{
mbed_official 237:f3da66175598 192 */
mbed_official 237:f3da66175598 193
mbed_official 375:3d36234a1087 194 /** @defgroup SMBUS_Exported_Functions_Group1 Initialization and de-initialization functions
mbed_official 237:f3da66175598 195 * @brief Initialization and Configuration functions
mbed_official 237:f3da66175598 196 *
mbed_official 237:f3da66175598 197 @verbatim
mbed_official 237:f3da66175598 198 ===============================================================================
mbed_official 237:f3da66175598 199 ##### Initialization and de-initialization functions #####
mbed_official 237:f3da66175598 200 ===============================================================================
mbed_official 237:f3da66175598 201 [..] This subsection provides a set of functions allowing to initialize and
mbed_official 237:f3da66175598 202 de-initialiaze the SMBUSx peripheral:
mbed_official 237:f3da66175598 203
mbed_official 237:f3da66175598 204 (+) User must Implement HAL_SMBUS_MspInit() function in which he configures
mbed_official 237:f3da66175598 205 all related peripherals resources (CLOCK, GPIO, IT and NVIC ).
mbed_official 237:f3da66175598 206
mbed_official 237:f3da66175598 207 (+) Call the function HAL_SMBUS_Init() to configure the selected device with
mbed_official 237:f3da66175598 208 the selected configuration:
mbed_official 237:f3da66175598 209 (++) Clock Timing
mbed_official 237:f3da66175598 210 (++) Bus Timeout
mbed_official 237:f3da66175598 211 (++) Analog Filer mode
mbed_official 237:f3da66175598 212 (++) Own Address 1
mbed_official 237:f3da66175598 213 (++) Addressing mode (Master, Slave)
mbed_official 237:f3da66175598 214 (++) Dual Addressing mode
mbed_official 237:f3da66175598 215 (++) Own Address 2
mbed_official 237:f3da66175598 216 (++) Own Address 2 Mask
mbed_official 237:f3da66175598 217 (++) General call mode
mbed_official 237:f3da66175598 218 (++) Nostretch mode
mbed_official 237:f3da66175598 219 (++) Packet Error Check mode
mbed_official 237:f3da66175598 220 (++) Peripheral mode
mbed_official 237:f3da66175598 221
mbed_official 237:f3da66175598 222
mbed_official 237:f3da66175598 223 (+) Call the function HAL_SMBUS_DeInit() to restore the default configuration
mbed_official 237:f3da66175598 224 of the selected SMBUSx periperal.
mbed_official 237:f3da66175598 225
mbed_official 237:f3da66175598 226 @endverbatim
mbed_official 237:f3da66175598 227 * @{
mbed_official 237:f3da66175598 228 */
mbed_official 237:f3da66175598 229
mbed_official 237:f3da66175598 230 /**
mbed_official 237:f3da66175598 231 * @brief Initializes the SMBUS according to the specified parameters
mbed_official 237:f3da66175598 232 * in the SMBUS_InitTypeDef and create the associated handle.
mbed_official 237:f3da66175598 233 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 234 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 235 * @retval HAL status
mbed_official 237:f3da66175598 236 */
mbed_official 237:f3da66175598 237 HAL_StatusTypeDef HAL_SMBUS_Init(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 238 {
mbed_official 237:f3da66175598 239 /* Check the SMBUS handle allocation */
mbed_official 634:ac7d6880524d 240 if(hsmbus == HAL_NULL)
mbed_official 237:f3da66175598 241 {
mbed_official 237:f3da66175598 242 return HAL_ERROR;
mbed_official 237:f3da66175598 243 }
mbed_official 237:f3da66175598 244
mbed_official 237:f3da66175598 245 /* Check the parameters */
mbed_official 237:f3da66175598 246 assert_param(IS_SMBUS_ALL_INSTANCE(hsmbus->Instance));
mbed_official 237:f3da66175598 247 assert_param(IS_SMBUS_ANALOG_FILTER(hsmbus->Init.AnalogFilter));
mbed_official 237:f3da66175598 248 assert_param(IS_SMBUS_OWN_ADDRESS1(hsmbus->Init.OwnAddress1));
mbed_official 237:f3da66175598 249 assert_param(IS_SMBUS_ADDRESSING_MODE(hsmbus->Init.AddressingMode));
mbed_official 237:f3da66175598 250 assert_param(IS_SMBUS_DUAL_ADDRESS(hsmbus->Init.DualAddressMode));
mbed_official 237:f3da66175598 251 assert_param(IS_SMBUS_OWN_ADDRESS2(hsmbus->Init.OwnAddress2));
mbed_official 237:f3da66175598 252 assert_param(IS_SMBUS_OWN_ADDRESS2_MASK(hsmbus->Init.OwnAddress2Masks));
mbed_official 237:f3da66175598 253 assert_param(IS_SMBUS_GENERAL_CALL(hsmbus->Init.GeneralCallMode));
mbed_official 237:f3da66175598 254 assert_param(IS_SMBUS_NO_STRETCH(hsmbus->Init.NoStretchMode));
mbed_official 237:f3da66175598 255 assert_param(IS_SMBUS_PEC(hsmbus->Init.PacketErrorCheckMode));
mbed_official 237:f3da66175598 256 assert_param(IS_SMBUS_PERIPHERAL_MODE(hsmbus->Init.PeripheralMode));
mbed_official 237:f3da66175598 257
mbed_official 237:f3da66175598 258 if(hsmbus->State == HAL_SMBUS_STATE_RESET)
mbed_official 237:f3da66175598 259 {
mbed_official 237:f3da66175598 260 /* Init the low level hardware : GPIO, CLOCK, NVIC */
mbed_official 237:f3da66175598 261 HAL_SMBUS_MspInit(hsmbus);
mbed_official 237:f3da66175598 262 }
mbed_official 237:f3da66175598 263
mbed_official 237:f3da66175598 264 hsmbus->State = HAL_SMBUS_STATE_BUSY;
mbed_official 237:f3da66175598 265
mbed_official 237:f3da66175598 266 /* Disable the selected SMBUS peripheral */
mbed_official 237:f3da66175598 267 __HAL_SMBUS_DISABLE(hsmbus);
mbed_official 237:f3da66175598 268
mbed_official 237:f3da66175598 269 /*---------------------------- SMBUSx TIMINGR Configuration ------------------------*/
mbed_official 237:f3da66175598 270 /* Configure SMBUSx: Frequency range */
mbed_official 237:f3da66175598 271 hsmbus->Instance->TIMINGR = hsmbus->Init.Timing & TIMING_CLEAR_MASK;
mbed_official 237:f3da66175598 272
mbed_official 237:f3da66175598 273 /*---------------------------- SMBUSx TIMEOUTR Configuration ------------------------*/
mbed_official 237:f3da66175598 274 /* Configure SMBUSx: Bus Timeout */
mbed_official 237:f3da66175598 275 hsmbus->Instance->TIMEOUTR &= ~I2C_TIMEOUTR_TIMOUTEN;
mbed_official 237:f3da66175598 276 hsmbus->Instance->TIMEOUTR &= ~I2C_TIMEOUTR_TEXTEN;
mbed_official 237:f3da66175598 277 hsmbus->Instance->TIMEOUTR = hsmbus->Init.SMBusTimeout;
mbed_official 237:f3da66175598 278
mbed_official 237:f3da66175598 279 /*---------------------------- SMBUSx OAR1 Configuration -----------------------*/
mbed_official 237:f3da66175598 280 /* Configure SMBUSx: Own Address1 and ack own address1 mode */
mbed_official 237:f3da66175598 281 hsmbus->Instance->OAR1 &= ~I2C_OAR1_OA1EN;
mbed_official 237:f3da66175598 282
mbed_official 237:f3da66175598 283 if(hsmbus->Init.OwnAddress1 != 0)
mbed_official 237:f3da66175598 284 {
mbed_official 237:f3da66175598 285 if(hsmbus->Init.AddressingMode == SMBUS_ADDRESSINGMODE_7BIT)
mbed_official 237:f3da66175598 286 {
mbed_official 237:f3da66175598 287 hsmbus->Instance->OAR1 = (I2C_OAR1_OA1EN | hsmbus->Init.OwnAddress1);
mbed_official 237:f3da66175598 288 }
mbed_official 237:f3da66175598 289 else /* SMBUS_ADDRESSINGMODE_10BIT */
mbed_official 237:f3da66175598 290 {
mbed_official 237:f3da66175598 291 hsmbus->Instance->OAR1 = (I2C_OAR1_OA1EN | I2C_OAR1_OA1MODE | hsmbus->Init.OwnAddress1);
mbed_official 237:f3da66175598 292 }
mbed_official 237:f3da66175598 293 }
mbed_official 237:f3da66175598 294
mbed_official 237:f3da66175598 295 /*---------------------------- SMBUSx CR2 Configuration ------------------------*/
mbed_official 237:f3da66175598 296 /* Configure SMBUSx: Addressing Master mode */
mbed_official 237:f3da66175598 297 if(hsmbus->Init.AddressingMode == SMBUS_ADDRESSINGMODE_10BIT)
mbed_official 237:f3da66175598 298 {
mbed_official 237:f3da66175598 299 hsmbus->Instance->CR2 = (I2C_CR2_ADD10);
mbed_official 237:f3da66175598 300 }
mbed_official 237:f3da66175598 301 /* Enable the AUTOEND by default, and enable NACK (should be disable only during Slave process) */
mbed_official 237:f3da66175598 302 /* AUTOEND and NACK bit will be manage during Transfer process */
mbed_official 237:f3da66175598 303 hsmbus->Instance->CR2 |= (I2C_CR2_AUTOEND | I2C_CR2_NACK);
mbed_official 237:f3da66175598 304
mbed_official 237:f3da66175598 305 /*---------------------------- SMBUSx OAR2 Configuration -----------------------*/
mbed_official 237:f3da66175598 306 /* Configure SMBUSx: Dual mode and Own Address2 */
mbed_official 237:f3da66175598 307 hsmbus->Instance->OAR2 = (hsmbus->Init.DualAddressMode | hsmbus->Init.OwnAddress2 | (hsmbus->Init.OwnAddress2Masks << 8));
mbed_official 237:f3da66175598 308
mbed_official 237:f3da66175598 309 /*---------------------------- SMBUSx CR1 Configuration ------------------------*/
mbed_official 237:f3da66175598 310 /* Configure SMBUSx: Generalcall and NoStretch mode */
mbed_official 237:f3da66175598 311 hsmbus->Instance->CR1 = (hsmbus->Init.GeneralCallMode | hsmbus->Init.NoStretchMode | hsmbus->Init.PacketErrorCheckMode | hsmbus->Init.PeripheralMode | hsmbus->Init.AnalogFilter);
mbed_official 237:f3da66175598 312
mbed_official 237:f3da66175598 313 /* Enable Slave Byte Control only in case of Packet Error Check is enabled and SMBUS Peripheral is set in Slave mode */
mbed_official 237:f3da66175598 314 if( (hsmbus->Init.PacketErrorCheckMode == SMBUS_PEC_ENABLED)
mbed_official 237:f3da66175598 315 && ( (hsmbus->Init.PeripheralMode == SMBUS_PERIPHERAL_MODE_SMBUS_SLAVE) || (hsmbus->Init.PeripheralMode == SMBUS_PERIPHERAL_MODE_SMBUS_SLAVE_ARP) ) )
mbed_official 237:f3da66175598 316 {
mbed_official 237:f3da66175598 317 hsmbus->Instance->CR1 |= I2C_CR1_SBC;
mbed_official 237:f3da66175598 318 }
mbed_official 237:f3da66175598 319
mbed_official 237:f3da66175598 320 /* Enable the selected SMBUS peripheral */
mbed_official 237:f3da66175598 321 __HAL_SMBUS_ENABLE(hsmbus);
mbed_official 237:f3da66175598 322
mbed_official 237:f3da66175598 323 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 324 hsmbus->PreviousState = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 325 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 326
mbed_official 237:f3da66175598 327 return HAL_OK;
mbed_official 237:f3da66175598 328 }
mbed_official 237:f3da66175598 329
mbed_official 237:f3da66175598 330 /**
mbed_official 237:f3da66175598 331 * @brief DeInitializes the SMBUS peripheral.
mbed_official 237:f3da66175598 332 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 333 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 334 * @retval HAL status
mbed_official 237:f3da66175598 335 */
mbed_official 237:f3da66175598 336 HAL_StatusTypeDef HAL_SMBUS_DeInit(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 337 {
mbed_official 237:f3da66175598 338 /* Check the SMBUS handle allocation */
mbed_official 634:ac7d6880524d 339 if(hsmbus == HAL_NULL)
mbed_official 237:f3da66175598 340 {
mbed_official 237:f3da66175598 341 return HAL_ERROR;
mbed_official 237:f3da66175598 342 }
mbed_official 237:f3da66175598 343
mbed_official 237:f3da66175598 344 /* Check the parameters */
mbed_official 237:f3da66175598 345 assert_param(IS_SMBUS_ALL_INSTANCE(hsmbus->Instance));
mbed_official 237:f3da66175598 346
mbed_official 237:f3da66175598 347 hsmbus->State = HAL_SMBUS_STATE_BUSY;
mbed_official 237:f3da66175598 348
mbed_official 237:f3da66175598 349 /* Disable the SMBUS Peripheral Clock */
mbed_official 237:f3da66175598 350 __HAL_SMBUS_DISABLE(hsmbus);
mbed_official 237:f3da66175598 351
mbed_official 237:f3da66175598 352 /* DeInit the low level hardware: GPIO, CLOCK, NVIC */
mbed_official 237:f3da66175598 353 HAL_SMBUS_MspDeInit(hsmbus);
mbed_official 237:f3da66175598 354
mbed_official 237:f3da66175598 355 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 356 hsmbus->PreviousState = HAL_SMBUS_STATE_RESET;
mbed_official 237:f3da66175598 357 hsmbus->State = HAL_SMBUS_STATE_RESET;
mbed_official 237:f3da66175598 358
mbed_official 237:f3da66175598 359 /* Release Lock */
mbed_official 237:f3da66175598 360 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 361
mbed_official 237:f3da66175598 362 return HAL_OK;
mbed_official 237:f3da66175598 363 }
mbed_official 237:f3da66175598 364
mbed_official 237:f3da66175598 365 /**
mbed_official 237:f3da66175598 366 * @brief SMBUS MSP Init.
mbed_official 237:f3da66175598 367 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 368 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 369 * @retval None
mbed_official 237:f3da66175598 370 */
mbed_official 237:f3da66175598 371 __weak void HAL_SMBUS_MspInit(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 372 {
mbed_official 237:f3da66175598 373 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 374 the HAL_SMBUS_MspInit could be implemented in the user file
mbed_official 237:f3da66175598 375 */
mbed_official 237:f3da66175598 376 }
mbed_official 237:f3da66175598 377
mbed_official 237:f3da66175598 378 /**
mbed_official 237:f3da66175598 379 * @brief SMBUS MSP DeInit
mbed_official 237:f3da66175598 380 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 381 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 382 * @retval None
mbed_official 237:f3da66175598 383 */
mbed_official 237:f3da66175598 384 __weak void HAL_SMBUS_MspDeInit(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 385 {
mbed_official 237:f3da66175598 386 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 387 the HAL_SMBUS_MspDeInit could be implemented in the user file
mbed_official 237:f3da66175598 388 */
mbed_official 237:f3da66175598 389 }
mbed_official 237:f3da66175598 390
mbed_official 237:f3da66175598 391 /**
mbed_official 237:f3da66175598 392 * @}
mbed_official 237:f3da66175598 393 */
mbed_official 237:f3da66175598 394
mbed_official 375:3d36234a1087 395 /** @defgroup SMBUS_Exported_Functions_Group2 Input and Output operation functions
mbed_official 237:f3da66175598 396 * @brief Data transfers functions
mbed_official 237:f3da66175598 397 *
mbed_official 237:f3da66175598 398 @verbatim
mbed_official 237:f3da66175598 399 ===============================================================================
mbed_official 237:f3da66175598 400 ##### IO operation functions #####
mbed_official 237:f3da66175598 401 ===============================================================================
mbed_official 237:f3da66175598 402 [..]
mbed_official 237:f3da66175598 403 This subsection provides a set of functions allowing to manage the SMBUS data
mbed_official 237:f3da66175598 404 transfers.
mbed_official 237:f3da66175598 405
mbed_official 237:f3da66175598 406 (#) Blocking mode function to check if device is ready for usage is :
mbed_official 237:f3da66175598 407 (++) HAL_SMBUS_IsDeviceReady()
mbed_official 237:f3da66175598 408
mbed_official 237:f3da66175598 409 (#) There is only one mode of transfer:
mbed_official 237:f3da66175598 410 (++) No-Blocking mode : The communication is performed using Interrupts.
mbed_official 237:f3da66175598 411 These functions return the status of the transfer startup.
mbed_official 237:f3da66175598 412 The end of the data processing will be indicated through the
mbed_official 237:f3da66175598 413 dedicated SMBUS IRQ when using Interrupt mode.
mbed_official 237:f3da66175598 414
mbed_official 237:f3da66175598 415 (#) No-Blocking mode functions with Interrupt are :
mbed_official 237:f3da66175598 416 (++) HAL_SMBUS_Master_Transmit_IT()
mbed_official 237:f3da66175598 417 (++) HAL_SMBUS_Master_Receive_IT()
mbed_official 237:f3da66175598 418 (++) HAL_SMBUS_Slave_Transmit_IT()
mbed_official 237:f3da66175598 419 (++) HAL_SMBUS_Slave_Receive_IT()
mbed_official 237:f3da66175598 420 (++) HAL_SMBUS_Slave_Listen_IT() or alias HAL_SMBUS_EnableListen_IT()
mbed_official 237:f3da66175598 421 (++) HAL_SMBUS_DisableListen_IT()
mbed_official 237:f3da66175598 422 (++) HAL_SMBUS_EnableAlert_IT()
mbed_official 237:f3da66175598 423 (++) HAL_SMBUS_DisableAlert_IT()
mbed_official 237:f3da66175598 424
mbed_official 237:f3da66175598 425 (#) A set of Transfer Complete Callbacks are provided in No_Blocking mode:
mbed_official 237:f3da66175598 426 (++) HAL_SMBUS_MasterTxCpltCallback()
mbed_official 237:f3da66175598 427 (++) HAL_SMBUS_MasterRxCpltCallback()
mbed_official 237:f3da66175598 428 (++) HAL_SMBUS_SlaveTxCpltCallback()
mbed_official 237:f3da66175598 429 (++) HAL_SMBUS_SlaveRxCpltCallback()
mbed_official 237:f3da66175598 430 (++) HAL_SMBUS_SlaveAddrCallback() or alias HAL_SMBUS_AddrCallback()
mbed_official 237:f3da66175598 431 (++) HAL_SMBUS_SlaveListenCpltCallback() or alias HAL_SMBUS_ListenCpltCallback()
mbed_official 237:f3da66175598 432 (++) HAL_SMBUS_ErrorCallback()
mbed_official 237:f3da66175598 433
mbed_official 237:f3da66175598 434 @endverbatim
mbed_official 237:f3da66175598 435 * @{
mbed_official 237:f3da66175598 436 */
mbed_official 237:f3da66175598 437
mbed_official 375:3d36234a1087 438 /** @defgroup Non-Blocking_mode_Interrupt Non-Blocking mode Interrupt
mbed_official 375:3d36234a1087 439 * @{
mbed_official 375:3d36234a1087 440 */
mbed_official 375:3d36234a1087 441
mbed_official 237:f3da66175598 442 /**
mbed_official 237:f3da66175598 443 * @brief Transmit in master/host SMBUS mode an amount of data in no-blocking mode with Interrupt
mbed_official 237:f3da66175598 444 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 445 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 446 * @param DevAddress: Target device address
mbed_official 237:f3da66175598 447 * @param pData: Pointer to data buffer
mbed_official 237:f3da66175598 448 * @param Size: Amount of data to be sent
mbed_official 237:f3da66175598 449 * @param XferOptions: Options of Transfer, value of @ref SMBUS_XferOptions_definition
mbed_official 237:f3da66175598 450 * @retval HAL status
mbed_official 237:f3da66175598 451 */
mbed_official 237:f3da66175598 452 HAL_StatusTypeDef HAL_SMBUS_Master_Transmit_IT(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions)
mbed_official 237:f3da66175598 453 {
mbed_official 237:f3da66175598 454 /* Check the parameters */
mbed_official 237:f3da66175598 455 assert_param(IS_SMBUS_TRANSFER_OPTIONS_REQUEST(XferOptions));
mbed_official 237:f3da66175598 456
mbed_official 237:f3da66175598 457 if(hsmbus->State == HAL_SMBUS_STATE_READY)
mbed_official 237:f3da66175598 458 {
mbed_official 237:f3da66175598 459 /* Process Locked */
mbed_official 237:f3da66175598 460 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 461
mbed_official 237:f3da66175598 462 hsmbus->State = HAL_SMBUS_STATE_MASTER_BUSY_TX;
mbed_official 237:f3da66175598 463 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 464 /* Prepare transfer parameters */
mbed_official 237:f3da66175598 465 hsmbus->pBuffPtr = pData;
mbed_official 237:f3da66175598 466 hsmbus->XferCount = Size;
mbed_official 237:f3da66175598 467 hsmbus->XferOptions = XferOptions;
mbed_official 237:f3da66175598 468
mbed_official 237:f3da66175598 469 /* In case of Quick command, remove autoend mode */
mbed_official 237:f3da66175598 470 /* Manage the stop generation by software */
mbed_official 634:ac7d6880524d 471 if(hsmbus->pBuffPtr == HAL_NULL)
mbed_official 237:f3da66175598 472 {
mbed_official 237:f3da66175598 473 hsmbus->XferOptions &= ~SMBUS_AUTOEND_MODE;
mbed_official 237:f3da66175598 474 }
mbed_official 237:f3da66175598 475
mbed_official 237:f3da66175598 476 if(Size > MAX_NBYTE_SIZE)
mbed_official 237:f3da66175598 477 {
mbed_official 237:f3da66175598 478 hsmbus->XferSize = MAX_NBYTE_SIZE;
mbed_official 237:f3da66175598 479 }
mbed_official 237:f3da66175598 480 else
mbed_official 237:f3da66175598 481 {
mbed_official 237:f3da66175598 482 hsmbus->XferSize = Size;
mbed_official 237:f3da66175598 483 }
mbed_official 237:f3da66175598 484
mbed_official 237:f3da66175598 485 /* Send Slave Address */
mbed_official 237:f3da66175598 486 /* Set NBYTES to write and reload if size > MAX_NBYTE_SIZE and generate RESTART */
mbed_official 237:f3da66175598 487 if( (hsmbus->XferSize == MAX_NBYTE_SIZE) && (hsmbus->XferSize < hsmbus->XferCount) )
mbed_official 237:f3da66175598 488 {
mbed_official 237:f3da66175598 489 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE), SMBUS_GENERATE_START_WRITE);
mbed_official 237:f3da66175598 490 }
mbed_official 237:f3da66175598 491 else
mbed_official 237:f3da66175598 492 {
mbed_official 237:f3da66175598 493 /* If transfer direction not change, do not generate Restart Condition */
mbed_official 237:f3da66175598 494 /* Mean Previous state is same as current state */
mbed_official 237:f3da66175598 495 if(hsmbus->PreviousState == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 496 {
mbed_official 237:f3da66175598 497 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 498 }
mbed_official 237:f3da66175598 499 /* Else transfer direction change, so generate Restart with new transfer direction */
mbed_official 237:f3da66175598 500 else
mbed_official 237:f3da66175598 501 {
mbed_official 237:f3da66175598 502 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_GENERATE_START_WRITE);
mbed_official 237:f3da66175598 503 }
mbed_official 237:f3da66175598 504
mbed_official 237:f3da66175598 505 /* If PEC mode is enable, size to transmit manage by SW part should be Size-1 byte, corresponding to PEC byte */
mbed_official 237:f3da66175598 506 /* PEC byte is automatically sent by HW block, no need to manage it in Transmit process */
mbed_official 237:f3da66175598 507 if(__HAL_SMBUS_GET_PEC_MODE(hsmbus) != RESET)
mbed_official 237:f3da66175598 508 {
mbed_official 237:f3da66175598 509 hsmbus->XferSize--;
mbed_official 237:f3da66175598 510 hsmbus->XferCount--;
mbed_official 237:f3da66175598 511 }
mbed_official 237:f3da66175598 512 }
mbed_official 237:f3da66175598 513
mbed_official 237:f3da66175598 514 /* Process Unlocked */
mbed_official 237:f3da66175598 515 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 516
mbed_official 237:f3da66175598 517 /* Note : The SMBUS interrupts must be enabled after unlocking current process
mbed_official 237:f3da66175598 518 to avoid the risk of SMBUS interrupt handle execution before current
mbed_official 237:f3da66175598 519 process unlock */
mbed_official 237:f3da66175598 520 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_TX);
mbed_official 237:f3da66175598 521
mbed_official 237:f3da66175598 522 return HAL_OK;
mbed_official 237:f3da66175598 523 }
mbed_official 237:f3da66175598 524 else
mbed_official 237:f3da66175598 525 {
mbed_official 237:f3da66175598 526 return HAL_BUSY;
mbed_official 237:f3da66175598 527 }
mbed_official 237:f3da66175598 528 }
mbed_official 237:f3da66175598 529
mbed_official 237:f3da66175598 530 /**
mbed_official 237:f3da66175598 531 * @brief Receive in master/host SMBUS mode an amount of data in no-blocking mode with Interrupt
mbed_official 237:f3da66175598 532 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 533 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 534 * @param DevAddress: Target device address
mbed_official 237:f3da66175598 535 * @param pData: Pointer to data buffer
mbed_official 237:f3da66175598 536 * @param Size: Amount of data to be sent
mbed_official 237:f3da66175598 537 * @param XferOptions: Options of Transfer, value of @ref SMBUS_XferOptions_definition
mbed_official 237:f3da66175598 538 * @retval HAL status
mbed_official 237:f3da66175598 539 */
mbed_official 237:f3da66175598 540 HAL_StatusTypeDef HAL_SMBUS_Master_Receive_IT(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions)
mbed_official 237:f3da66175598 541 {
mbed_official 237:f3da66175598 542 /* Check the parameters */
mbed_official 237:f3da66175598 543 assert_param(IS_SMBUS_TRANSFER_OPTIONS_REQUEST(XferOptions));
mbed_official 237:f3da66175598 544
mbed_official 237:f3da66175598 545 if(hsmbus->State == HAL_SMBUS_STATE_READY)
mbed_official 237:f3da66175598 546 {
mbed_official 237:f3da66175598 547 /* Process Locked */
mbed_official 237:f3da66175598 548 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 549
mbed_official 237:f3da66175598 550 hsmbus->State = HAL_SMBUS_STATE_MASTER_BUSY_RX;
mbed_official 237:f3da66175598 551 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 552
mbed_official 237:f3da66175598 553 /* Prepare transfer parameters */
mbed_official 237:f3da66175598 554 hsmbus->pBuffPtr = pData;
mbed_official 237:f3da66175598 555 hsmbus->XferCount = Size;
mbed_official 237:f3da66175598 556 hsmbus->XferOptions = XferOptions;
mbed_official 237:f3da66175598 557
mbed_official 237:f3da66175598 558 /* In case of Quick command, remove autoend mode */
mbed_official 237:f3da66175598 559 /* Manage the stop generation by software */
mbed_official 634:ac7d6880524d 560 if(hsmbus->pBuffPtr == HAL_NULL)
mbed_official 237:f3da66175598 561 {
mbed_official 237:f3da66175598 562 hsmbus->XferOptions &= ~SMBUS_AUTOEND_MODE;
mbed_official 237:f3da66175598 563 }
mbed_official 237:f3da66175598 564
mbed_official 237:f3da66175598 565 if(Size > MAX_NBYTE_SIZE)
mbed_official 237:f3da66175598 566 {
mbed_official 237:f3da66175598 567 hsmbus->XferSize = MAX_NBYTE_SIZE;
mbed_official 237:f3da66175598 568 }
mbed_official 237:f3da66175598 569 else
mbed_official 237:f3da66175598 570 {
mbed_official 237:f3da66175598 571 hsmbus->XferSize = Size;
mbed_official 237:f3da66175598 572 }
mbed_official 237:f3da66175598 573
mbed_official 237:f3da66175598 574 /* Send Slave Address */
mbed_official 237:f3da66175598 575 /* Set NBYTES to write and reload if size > MAX_NBYTE_SIZE and generate RESTART */
mbed_official 237:f3da66175598 576 if( (hsmbus->XferSize == MAX_NBYTE_SIZE) && (hsmbus->XferSize < hsmbus->XferCount) )
mbed_official 237:f3da66175598 577 {
mbed_official 237:f3da66175598 578 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE), SMBUS_GENERATE_START_READ);
mbed_official 237:f3da66175598 579 }
mbed_official 237:f3da66175598 580 else
mbed_official 237:f3da66175598 581 {
mbed_official 237:f3da66175598 582 /* If transfer direction not change, do not generate Restart Condition */
mbed_official 237:f3da66175598 583 /* Mean Previous state is same as current state */
mbed_official 237:f3da66175598 584 if(hsmbus->PreviousState == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 585 {
mbed_official 237:f3da66175598 586 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 587 }
mbed_official 237:f3da66175598 588 /* Else transfer direction change, so generate Restart with new transfer direction */
mbed_official 237:f3da66175598 589 else
mbed_official 237:f3da66175598 590 {
mbed_official 237:f3da66175598 591 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_GENERATE_START_READ);
mbed_official 237:f3da66175598 592 }
mbed_official 237:f3da66175598 593 }
mbed_official 237:f3da66175598 594
mbed_official 237:f3da66175598 595 /* Process Unlocked */
mbed_official 237:f3da66175598 596 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 597
mbed_official 237:f3da66175598 598 /* Note : The SMBUS interrupts must be enabled after unlocking current process
mbed_official 237:f3da66175598 599 to avoid the risk of SMBUS interrupt handle execution before current
mbed_official 237:f3da66175598 600 process unlock */
mbed_official 237:f3da66175598 601 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_RX);
mbed_official 237:f3da66175598 602
mbed_official 237:f3da66175598 603 return HAL_OK;
mbed_official 237:f3da66175598 604 }
mbed_official 237:f3da66175598 605 else
mbed_official 237:f3da66175598 606 {
mbed_official 237:f3da66175598 607 return HAL_BUSY;
mbed_official 237:f3da66175598 608 }
mbed_official 237:f3da66175598 609 }
mbed_official 237:f3da66175598 610
mbed_official 237:f3da66175598 611 /**
mbed_official 237:f3da66175598 612 * @brief Abort a master/host SMBUS process commnunication with Interrupt
mbed_official 237:f3da66175598 613 * @note : This abort can be called only if state is ready
mbed_official 237:f3da66175598 614 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 615 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 616 * @param DevAddress: Target device address
mbed_official 237:f3da66175598 617 * @retval HAL status
mbed_official 237:f3da66175598 618 */
mbed_official 237:f3da66175598 619 HAL_StatusTypeDef HAL_SMBUS_Master_Abort_IT(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress)
mbed_official 237:f3da66175598 620 {
mbed_official 237:f3da66175598 621 if(hsmbus->State == HAL_SMBUS_STATE_READY)
mbed_official 237:f3da66175598 622 {
mbed_official 237:f3da66175598 623 /* Process Locked */
mbed_official 237:f3da66175598 624 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 625
mbed_official 237:f3da66175598 626 /* Keep the same state as previous */
mbed_official 237:f3da66175598 627 /* to perform as well the call of the corresponding end of transfer callback */
mbed_official 237:f3da66175598 628 if(hsmbus->PreviousState == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 629 {
mbed_official 237:f3da66175598 630 hsmbus->State = HAL_SMBUS_STATE_MASTER_BUSY_TX;
mbed_official 237:f3da66175598 631 }
mbed_official 237:f3da66175598 632 else if(hsmbus->PreviousState == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 633 {
mbed_official 237:f3da66175598 634 hsmbus->State = HAL_SMBUS_STATE_MASTER_BUSY_RX;
mbed_official 237:f3da66175598 635 }
mbed_official 237:f3da66175598 636 else
mbed_official 237:f3da66175598 637 {
mbed_official 237:f3da66175598 638 /* Wrong usage of abort function */
mbed_official 237:f3da66175598 639 /* This function should be used only in case of abort monitored by master device */
mbed_official 237:f3da66175598 640 return HAL_ERROR;
mbed_official 237:f3da66175598 641 }
mbed_official 237:f3da66175598 642 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 643
mbed_official 237:f3da66175598 644 /* Set NBYTES to 1 to generate a dummy read on SMBUS peripheral */
mbed_official 237:f3da66175598 645 /* Set AUTOEND mode, this will generate a NACK then STOP condition to abort the current transfer */
mbed_official 237:f3da66175598 646 SMBUS_TransferConfig(hsmbus, DevAddress, 1, SMBUS_AUTOEND_MODE, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 647
mbed_official 237:f3da66175598 648 /* Process Unlocked */
mbed_official 237:f3da66175598 649 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 650
mbed_official 237:f3da66175598 651 /* Note : The SMBUS interrupts must be enabled after unlocking current process
mbed_official 237:f3da66175598 652 to avoid the risk of SMBUS interrupt handle execution before current
mbed_official 237:f3da66175598 653 process unlock */
mbed_official 237:f3da66175598 654 if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 655 {
mbed_official 237:f3da66175598 656 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_TX);
mbed_official 237:f3da66175598 657 }
mbed_official 237:f3da66175598 658 else if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 659 {
mbed_official 237:f3da66175598 660 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_RX);
mbed_official 237:f3da66175598 661 }
mbed_official 237:f3da66175598 662
mbed_official 237:f3da66175598 663 return HAL_OK;
mbed_official 237:f3da66175598 664 }
mbed_official 237:f3da66175598 665 else
mbed_official 237:f3da66175598 666 {
mbed_official 237:f3da66175598 667 return HAL_BUSY;
mbed_official 237:f3da66175598 668 }
mbed_official 237:f3da66175598 669 }
mbed_official 237:f3da66175598 670
mbed_official 237:f3da66175598 671 /**
mbed_official 237:f3da66175598 672 * @brief Transmit in slave/device SMBUS mode an amount of data in no-blocking mode with Interrupt
mbed_official 237:f3da66175598 673 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 674 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 675 * @param pData: Pointer to data buffer
mbed_official 237:f3da66175598 676 * @param Size: Amount of data to be sent
mbed_official 237:f3da66175598 677 * @param XferOptions: Options of Transfer, value of @ref SMBUS_XferOptions_definition
mbed_official 237:f3da66175598 678 * @retval HAL status
mbed_official 237:f3da66175598 679 */
mbed_official 237:f3da66175598 680 HAL_StatusTypeDef HAL_SMBUS_Slave_Transmit_IT(SMBUS_HandleTypeDef *hsmbus, uint8_t *pData, uint16_t Size, uint32_t XferOptions)
mbed_official 237:f3da66175598 681 {
mbed_official 237:f3da66175598 682 /* Check the parameters */
mbed_official 237:f3da66175598 683 assert_param(IS_SMBUS_TRANSFER_OPTIONS_REQUEST(XferOptions));
mbed_official 237:f3da66175598 684
mbed_official 237:f3da66175598 685 if(hsmbus->State == HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 686 {
mbed_official 634:ac7d6880524d 687 if((pData == HAL_NULL) || (Size == 0))
mbed_official 237:f3da66175598 688 {
mbed_official 237:f3da66175598 689 return HAL_ERROR;
mbed_official 237:f3da66175598 690 }
mbed_official 237:f3da66175598 691
mbed_official 237:f3da66175598 692 /* Disable Interrupts, to prevent preemption during treatment in case of multicall */
mbed_official 237:f3da66175598 693 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ADDR | SMBUS_IT_TX);
mbed_official 237:f3da66175598 694
mbed_official 237:f3da66175598 695 /* Process Locked */
mbed_official 237:f3da66175598 696 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 697
mbed_official 237:f3da66175598 698 hsmbus->State |= HAL_SMBUS_STATE_SLAVE_BUSY_TX;
mbed_official 237:f3da66175598 699 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 700
mbed_official 375:3d36234a1087 701 /* Set SBC bit to manage Acknowledge at each bit */
mbed_official 375:3d36234a1087 702 hsmbus->Instance->CR1 |= I2C_CR1_SBC;
mbed_official 375:3d36234a1087 703
mbed_official 237:f3da66175598 704 /* Enable Address Acknowledge */
mbed_official 237:f3da66175598 705 hsmbus->Instance->CR2 &= ~I2C_CR2_NACK;
mbed_official 237:f3da66175598 706
mbed_official 237:f3da66175598 707 /* Prepare transfer parameters */
mbed_official 237:f3da66175598 708 hsmbus->pBuffPtr = pData;
mbed_official 237:f3da66175598 709 hsmbus->XferSize = Size;
mbed_official 237:f3da66175598 710 hsmbus->XferCount = Size;
mbed_official 237:f3da66175598 711 hsmbus->XferOptions = XferOptions;
mbed_official 237:f3da66175598 712
mbed_official 237:f3da66175598 713 if(Size > MAX_NBYTE_SIZE)
mbed_official 237:f3da66175598 714 {
mbed_official 237:f3da66175598 715 hsmbus->XferSize = MAX_NBYTE_SIZE;
mbed_official 237:f3da66175598 716 }
mbed_official 237:f3da66175598 717 else
mbed_official 237:f3da66175598 718 {
mbed_official 237:f3da66175598 719 hsmbus->XferSize = Size;
mbed_official 237:f3da66175598 720 }
mbed_official 237:f3da66175598 721
mbed_official 237:f3da66175598 722 /* Set NBYTES to write and reload if size > MAX_NBYTE_SIZE and generate RESTART */
mbed_official 237:f3da66175598 723 if( (hsmbus->XferSize == MAX_NBYTE_SIZE) && (hsmbus->XferSize < hsmbus->XferCount) )
mbed_official 237:f3da66175598 724 {
mbed_official 237:f3da66175598 725 SMBUS_TransferConfig(hsmbus,0,hsmbus->XferSize, SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE), SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 726 }
mbed_official 237:f3da66175598 727 else
mbed_official 237:f3da66175598 728 {
mbed_official 237:f3da66175598 729 /* Set NBYTE to transmit */
mbed_official 237:f3da66175598 730 SMBUS_TransferConfig(hsmbus,0,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 731
mbed_official 237:f3da66175598 732 /* If PEC mode is enable, size to transmit should be Size-1 byte, corresponding to PEC byte */
mbed_official 237:f3da66175598 733 /* PEC byte is automatically sent by HW block, no need to manage it in Transmit process */
mbed_official 237:f3da66175598 734 if(__HAL_SMBUS_GET_PEC_MODE(hsmbus) != RESET)
mbed_official 237:f3da66175598 735 {
mbed_official 237:f3da66175598 736 hsmbus->XferSize--;
mbed_official 237:f3da66175598 737 hsmbus->XferCount--;
mbed_official 237:f3da66175598 738 }
mbed_official 237:f3da66175598 739 }
mbed_official 237:f3da66175598 740
mbed_official 237:f3da66175598 741 /* Clear ADDR flag after prepare the transfer parameters */
mbed_official 237:f3da66175598 742 /* This action will generate an acknowledge to the HOST */
mbed_official 237:f3da66175598 743 __HAL_SMBUS_CLEAR_FLAG(hsmbus,SMBUS_FLAG_ADDR);
mbed_official 237:f3da66175598 744
mbed_official 237:f3da66175598 745 /* Process Unlocked */
mbed_official 237:f3da66175598 746 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 747
mbed_official 237:f3da66175598 748 /* Note : The SMBUS interrupts must be enabled after unlocking current process
mbed_official 237:f3da66175598 749 to avoid the risk of SMBUS interrupt handle execution before current
mbed_official 237:f3da66175598 750 process unlock */
mbed_official 237:f3da66175598 751 /* REnable ADDR interrupt */
mbed_official 237:f3da66175598 752 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_TX | SMBUS_IT_ADDR);
mbed_official 237:f3da66175598 753
mbed_official 237:f3da66175598 754 return HAL_OK;
mbed_official 237:f3da66175598 755 }
mbed_official 237:f3da66175598 756 else
mbed_official 237:f3da66175598 757 {
mbed_official 237:f3da66175598 758 return HAL_ERROR;
mbed_official 237:f3da66175598 759 }
mbed_official 237:f3da66175598 760 }
mbed_official 237:f3da66175598 761
mbed_official 237:f3da66175598 762 /**
mbed_official 237:f3da66175598 763 * @brief Receive in slave/device SMBUS mode an amount of data in no-blocking mode with Interrupt
mbed_official 237:f3da66175598 764 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 765 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 766 * @param pData: Pointer to data buffer
mbed_official 237:f3da66175598 767 * @param Size: Amount of data to be sent
mbed_official 237:f3da66175598 768 * @param XferOptions: Options of Transfer, value of @ref SMBUS_XferOptions_definition
mbed_official 237:f3da66175598 769 * @retval HAL status
mbed_official 237:f3da66175598 770 */
mbed_official 237:f3da66175598 771 HAL_StatusTypeDef HAL_SMBUS_Slave_Receive_IT(SMBUS_HandleTypeDef *hsmbus, uint8_t *pData, uint16_t Size, uint32_t XferOptions)
mbed_official 237:f3da66175598 772 {
mbed_official 237:f3da66175598 773 /* Check the parameters */
mbed_official 237:f3da66175598 774 assert_param(IS_SMBUS_TRANSFER_OPTIONS_REQUEST(XferOptions));
mbed_official 237:f3da66175598 775
mbed_official 237:f3da66175598 776 if(hsmbus->State == HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 777 {
mbed_official 634:ac7d6880524d 778 if((pData == HAL_NULL) || (Size == 0))
mbed_official 237:f3da66175598 779 {
mbed_official 237:f3da66175598 780 return HAL_ERROR;
mbed_official 237:f3da66175598 781 }
mbed_official 237:f3da66175598 782
mbed_official 237:f3da66175598 783 /* Disable Interrupts, to prevent preemption during treatment in case of multicall */
mbed_official 237:f3da66175598 784 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ADDR | SMBUS_IT_RX);
mbed_official 237:f3da66175598 785
mbed_official 237:f3da66175598 786 /* Process Locked */
mbed_official 237:f3da66175598 787 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 788
mbed_official 237:f3da66175598 789 hsmbus->State |= HAL_SMBUS_STATE_SLAVE_BUSY_RX;
mbed_official 237:f3da66175598 790 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 791
mbed_official 375:3d36234a1087 792 /* Set SBC bit to manage Acknowledge at each bit */
mbed_official 375:3d36234a1087 793 hsmbus->Instance->CR1 |= I2C_CR1_SBC;
mbed_official 375:3d36234a1087 794
mbed_official 237:f3da66175598 795 /* Enable Address Acknowledge */
mbed_official 237:f3da66175598 796 hsmbus->Instance->CR2 &= ~I2C_CR2_NACK;
mbed_official 237:f3da66175598 797
mbed_official 237:f3da66175598 798 /* Prepare transfer parameters */
mbed_official 237:f3da66175598 799 hsmbus->pBuffPtr = pData;
mbed_official 237:f3da66175598 800 hsmbus->XferSize = Size;
mbed_official 237:f3da66175598 801 hsmbus->XferCount = Size;
mbed_official 237:f3da66175598 802 hsmbus->XferOptions = XferOptions;
mbed_official 237:f3da66175598 803
mbed_official 237:f3da66175598 804 /* Set NBYTE to receive */
mbed_official 237:f3da66175598 805 /* If XferSize equal "1", or XferSize equal "2" with PEC requested (mean 1 data byte + 1 PEC byte */
mbed_official 237:f3da66175598 806 /* no need to set RELOAD bit mode, a ACK will be automatically generated in that case */
mbed_official 237:f3da66175598 807 /* else need to set RELOAD bit mode to generate an automatic ACK at each byte Received */
mbed_official 237:f3da66175598 808 /* This RELOAD bit will be reset for last BYTE to be receive in SMBUS_Slave_ISR */
mbed_official 237:f3da66175598 809 if((hsmbus->XferSize == 1) || ((hsmbus->XferSize == 2) && (__HAL_SMBUS_GET_PEC_MODE(hsmbus) != RESET)))
mbed_official 237:f3da66175598 810 {
mbed_official 237:f3da66175598 811 SMBUS_TransferConfig(hsmbus,0,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 812 }
mbed_official 237:f3da66175598 813 else
mbed_official 237:f3da66175598 814 {
mbed_official 237:f3da66175598 815 SMBUS_TransferConfig(hsmbus,0, 1, hsmbus->XferOptions | SMBUS_RELOAD_MODE, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 816 }
mbed_official 237:f3da66175598 817
mbed_official 237:f3da66175598 818 /* Clear ADDR flag after prepare the transfer parameters */
mbed_official 237:f3da66175598 819 /* This action will generate an acknowledge to the HOST */
mbed_official 237:f3da66175598 820 __HAL_SMBUS_CLEAR_FLAG(hsmbus,SMBUS_FLAG_ADDR);
mbed_official 237:f3da66175598 821
mbed_official 237:f3da66175598 822 /* Process Unlocked */
mbed_official 237:f3da66175598 823 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 824
mbed_official 237:f3da66175598 825 /* Note : The SMBUS interrupts must be enabled after unlocking current process
mbed_official 237:f3da66175598 826 to avoid the risk of SMBUS interrupt handle execution before current
mbed_official 237:f3da66175598 827 process unlock */
mbed_official 237:f3da66175598 828 /* REnable ADDR interrupt */
mbed_official 237:f3da66175598 829 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_RX | SMBUS_IT_ADDR);
mbed_official 237:f3da66175598 830
mbed_official 237:f3da66175598 831 return HAL_OK;
mbed_official 237:f3da66175598 832 }
mbed_official 237:f3da66175598 833 else
mbed_official 237:f3da66175598 834 {
mbed_official 237:f3da66175598 835 return HAL_ERROR;
mbed_official 237:f3da66175598 836 }
mbed_official 237:f3da66175598 837 }
mbed_official 237:f3da66175598 838
mbed_official 237:f3da66175598 839 /**
mbed_official 237:f3da66175598 840 * @brief This function enable the Address listen mode
mbed_official 237:f3da66175598 841 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 842 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 843 * @retval HAL status
mbed_official 237:f3da66175598 844 */
mbed_official 237:f3da66175598 845 HAL_StatusTypeDef HAL_SMBUS_Slave_Listen_IT(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 846 {
mbed_official 237:f3da66175598 847 hsmbus->State = HAL_SMBUS_STATE_LISTEN;
mbed_official 237:f3da66175598 848
mbed_official 237:f3da66175598 849 /* Enable the Address Match interrupt */
mbed_official 237:f3da66175598 850 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_ADDR);
mbed_official 237:f3da66175598 851
mbed_official 237:f3da66175598 852 return HAL_OK;
mbed_official 237:f3da66175598 853 }
mbed_official 237:f3da66175598 854
mbed_official 237:f3da66175598 855 /**
mbed_official 237:f3da66175598 856 * @brief This function disable the Address listen mode
mbed_official 237:f3da66175598 857 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 858 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 859 * @retval HAL status
mbed_official 237:f3da66175598 860 */
mbed_official 237:f3da66175598 861 HAL_StatusTypeDef HAL_SMBUS_DisableListen_IT(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 862 {
mbed_official 237:f3da66175598 863 /* Disable Address listen mode only if a transfer is not ongoing */
mbed_official 237:f3da66175598 864 if(hsmbus->State == HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 865 {
mbed_official 237:f3da66175598 866 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 867
mbed_official 237:f3da66175598 868 /* Disable the Address Match interrupt */
mbed_official 237:f3da66175598 869 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ADDR);
mbed_official 237:f3da66175598 870
mbed_official 237:f3da66175598 871 return HAL_OK;
mbed_official 237:f3da66175598 872 }
mbed_official 237:f3da66175598 873 else
mbed_official 237:f3da66175598 874 {
mbed_official 237:f3da66175598 875 return HAL_BUSY;
mbed_official 237:f3da66175598 876 }
mbed_official 237:f3da66175598 877 }
mbed_official 237:f3da66175598 878
mbed_official 237:f3da66175598 879 /**
mbed_official 237:f3da66175598 880 * @brief This function enable the SMBUS alert mode.
mbed_official 237:f3da66175598 881 * @param hsmbus : pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 882 * the configuration information for the specified SMBUSx peripheral.
mbed_official 237:f3da66175598 883 * @retval HAL status
mbed_official 237:f3da66175598 884 */
mbed_official 237:f3da66175598 885 HAL_StatusTypeDef HAL_SMBUS_EnableAlert_IT(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 886 {
mbed_official 237:f3da66175598 887 /* Enable SMBus alert */
mbed_official 237:f3da66175598 888 hsmbus->Instance->CR1 |= I2C_CR1_ALERTEN;
mbed_official 237:f3da66175598 889
mbed_official 237:f3da66175598 890 /* Clear ALERT flag */
mbed_official 237:f3da66175598 891 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_ALERT);
mbed_official 237:f3da66175598 892
mbed_official 237:f3da66175598 893 /* Enable Alert Interrupt */
mbed_official 237:f3da66175598 894 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_ALERT);
mbed_official 237:f3da66175598 895
mbed_official 237:f3da66175598 896 return HAL_OK;
mbed_official 237:f3da66175598 897 }
mbed_official 237:f3da66175598 898 /**
mbed_official 237:f3da66175598 899 * @brief This function disable the SMBUS alert mode.
mbed_official 237:f3da66175598 900 * @param hsmbus : pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 901 * the configuration information for the specified SMBUSx peripheral.
mbed_official 237:f3da66175598 902 * @retval HAL status
mbed_official 237:f3da66175598 903 */
mbed_official 237:f3da66175598 904 HAL_StatusTypeDef HAL_SMBUS_DisableAlert_IT(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 905 {
mbed_official 237:f3da66175598 906 /* Enable SMBus alert */
mbed_official 237:f3da66175598 907 hsmbus->Instance->CR1 &= ~I2C_CR1_ALERTEN;
mbed_official 237:f3da66175598 908
mbed_official 237:f3da66175598 909 /* Disable Alert Interrupt */
mbed_official 237:f3da66175598 910 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ALERT);
mbed_official 237:f3da66175598 911
mbed_official 237:f3da66175598 912 return HAL_OK;
mbed_official 237:f3da66175598 913 }
mbed_official 375:3d36234a1087 914
mbed_official 375:3d36234a1087 915 /**
mbed_official 375:3d36234a1087 916 * @}
mbed_official 375:3d36234a1087 917 */
mbed_official 375:3d36234a1087 918
mbed_official 375:3d36234a1087 919 /** @defgroup Blocking_mode_Polling Blocking mode Polling
mbed_official 375:3d36234a1087 920 * @{
mbed_official 375:3d36234a1087 921 */
mbed_official 237:f3da66175598 922 /**
mbed_official 237:f3da66175598 923 * @brief Checks if target device is ready for communication.
mbed_official 237:f3da66175598 924 * @note This function is used with Memory devices
mbed_official 237:f3da66175598 925 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 926 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 927 * @param DevAddress: Target device address
mbed_official 237:f3da66175598 928 * @param Trials: Number of trials
mbed_official 237:f3da66175598 929 * @param Timeout: Timeout duration
mbed_official 237:f3da66175598 930 * @retval HAL status
mbed_official 237:f3da66175598 931 */
mbed_official 237:f3da66175598 932 HAL_StatusTypeDef HAL_SMBUS_IsDeviceReady(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout)
mbed_official 237:f3da66175598 933 {
mbed_official 237:f3da66175598 934 uint32_t tickstart = 0;
mbed_official 237:f3da66175598 935
mbed_official 237:f3da66175598 936 __IO uint32_t SMBUS_Trials = 0;
mbed_official 237:f3da66175598 937
mbed_official 237:f3da66175598 938 if(hsmbus->State == HAL_SMBUS_STATE_READY)
mbed_official 237:f3da66175598 939 {
mbed_official 237:f3da66175598 940 if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_BUSY) != RESET)
mbed_official 237:f3da66175598 941 {
mbed_official 237:f3da66175598 942 return HAL_BUSY;
mbed_official 237:f3da66175598 943 }
mbed_official 237:f3da66175598 944
mbed_official 237:f3da66175598 945 /* Process Locked */
mbed_official 237:f3da66175598 946 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 947
mbed_official 237:f3da66175598 948 hsmbus->State = HAL_SMBUS_STATE_BUSY;
mbed_official 237:f3da66175598 949 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 950
mbed_official 237:f3da66175598 951 do
mbed_official 237:f3da66175598 952 {
mbed_official 237:f3da66175598 953 /* Generate Start */
mbed_official 237:f3da66175598 954 hsmbus->Instance->CR2 = __HAL_SMBUS_GENERATE_START(hsmbus->Init.AddressingMode,DevAddress);
mbed_official 237:f3da66175598 955
mbed_official 237:f3da66175598 956 /* No need to Check TC flag, with AUTOEND mode the stop is automatically generated */
mbed_official 237:f3da66175598 957 /* Wait until STOPF flag is set or a NACK flag is set*/
mbed_official 237:f3da66175598 958 tickstart = HAL_GetTick();
mbed_official 237:f3da66175598 959 while((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_STOPF) == RESET) && (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_AF) == RESET) && (hsmbus->State != HAL_SMBUS_STATE_TIMEOUT))
mbed_official 237:f3da66175598 960 {
mbed_official 237:f3da66175598 961 if(Timeout != HAL_MAX_DELAY)
mbed_official 237:f3da66175598 962 {
mbed_official 237:f3da66175598 963 if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
mbed_official 237:f3da66175598 964 {
mbed_official 237:f3da66175598 965 /* Device is ready */
mbed_official 237:f3da66175598 966 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 967
mbed_official 237:f3da66175598 968 /* Process Unlocked */
mbed_official 237:f3da66175598 969 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 970 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 971 }
mbed_official 237:f3da66175598 972 }
mbed_official 237:f3da66175598 973 }
mbed_official 237:f3da66175598 974
mbed_official 237:f3da66175598 975 /* Check if the NACKF flag has not been set */
mbed_official 237:f3da66175598 976 if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_AF) == RESET)
mbed_official 237:f3da66175598 977 {
mbed_official 237:f3da66175598 978 /* Wait until STOPF flag is reset */
mbed_official 237:f3da66175598 979 if(SMBUS_WaitOnFlagUntilTimeout(hsmbus, SMBUS_FLAG_STOPF, RESET, Timeout) != HAL_OK)
mbed_official 237:f3da66175598 980 {
mbed_official 237:f3da66175598 981 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 982 }
mbed_official 237:f3da66175598 983
mbed_official 237:f3da66175598 984 /* Clear STOP Flag */
mbed_official 237:f3da66175598 985 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF);
mbed_official 237:f3da66175598 986
mbed_official 237:f3da66175598 987 /* Device is ready */
mbed_official 237:f3da66175598 988 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 989
mbed_official 237:f3da66175598 990 /* Process Unlocked */
mbed_official 237:f3da66175598 991 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 992
mbed_official 237:f3da66175598 993 return HAL_OK;
mbed_official 237:f3da66175598 994 }
mbed_official 237:f3da66175598 995 else
mbed_official 237:f3da66175598 996 {
mbed_official 237:f3da66175598 997 /* Wait until STOPF flag is reset */
mbed_official 237:f3da66175598 998 if(SMBUS_WaitOnFlagUntilTimeout(hsmbus, SMBUS_FLAG_STOPF, RESET, Timeout) != HAL_OK)
mbed_official 237:f3da66175598 999 {
mbed_official 237:f3da66175598 1000 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 1001 }
mbed_official 237:f3da66175598 1002
mbed_official 237:f3da66175598 1003 /* Clear NACK Flag */
mbed_official 237:f3da66175598 1004 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_AF);
mbed_official 237:f3da66175598 1005
mbed_official 237:f3da66175598 1006 /* Clear STOP Flag, auto generated with autoend*/
mbed_official 237:f3da66175598 1007 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF);
mbed_official 237:f3da66175598 1008 }
mbed_official 237:f3da66175598 1009
mbed_official 237:f3da66175598 1010 /* Check if the maximum allowed number of trials has been reached */
mbed_official 237:f3da66175598 1011 if (SMBUS_Trials++ == Trials)
mbed_official 237:f3da66175598 1012 {
mbed_official 237:f3da66175598 1013 /* Generate Stop */
mbed_official 237:f3da66175598 1014 hsmbus->Instance->CR2 |= I2C_CR2_STOP;
mbed_official 237:f3da66175598 1015
mbed_official 237:f3da66175598 1016 /* Wait until STOPF flag is reset */
mbed_official 237:f3da66175598 1017 if(SMBUS_WaitOnFlagUntilTimeout(hsmbus, SMBUS_FLAG_STOPF, RESET, Timeout) != HAL_OK)
mbed_official 237:f3da66175598 1018 {
mbed_official 237:f3da66175598 1019 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 1020 }
mbed_official 237:f3da66175598 1021
mbed_official 237:f3da66175598 1022 /* Clear STOP Flag */
mbed_official 237:f3da66175598 1023 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF);
mbed_official 237:f3da66175598 1024 }
mbed_official 237:f3da66175598 1025 }while(SMBUS_Trials < Trials);
mbed_official 237:f3da66175598 1026
mbed_official 237:f3da66175598 1027 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1028
mbed_official 237:f3da66175598 1029 /* Process Unlocked */
mbed_official 237:f3da66175598 1030 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1031
mbed_official 237:f3da66175598 1032 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 1033 }
mbed_official 237:f3da66175598 1034 else
mbed_official 237:f3da66175598 1035 {
mbed_official 237:f3da66175598 1036 return HAL_BUSY;
mbed_official 237:f3da66175598 1037 }
mbed_official 237:f3da66175598 1038 }
mbed_official 375:3d36234a1087 1039 /**
mbed_official 375:3d36234a1087 1040 * @}
mbed_official 375:3d36234a1087 1041 */
mbed_official 375:3d36234a1087 1042
mbed_official 375:3d36234a1087 1043 /** @defgroup IRQ_Handler_and_Callbacks IRQ Handler and Callbacks
mbed_official 375:3d36234a1087 1044 * @{
mbed_official 375:3d36234a1087 1045 */
mbed_official 237:f3da66175598 1046
mbed_official 237:f3da66175598 1047 /**
mbed_official 237:f3da66175598 1048 * @brief This function handles SMBUS event interrupt request.
mbed_official 237:f3da66175598 1049 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1050 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1051 * @retval None
mbed_official 237:f3da66175598 1052 */
mbed_official 237:f3da66175598 1053 void HAL_SMBUS_EV_IRQHandler(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1054 {
mbed_official 237:f3da66175598 1055 uint32_t tmpisrvalue = 0;
mbed_official 237:f3da66175598 1056
mbed_official 237:f3da66175598 1057 /* Use a local variable to store the current ISR flags */
mbed_official 237:f3da66175598 1058 /* This action will avoid a wrong treatment due to ISR flags change during interrupt handler */
mbed_official 237:f3da66175598 1059 tmpisrvalue = __SMBUS_GET_ISR_REG(hsmbus);
mbed_official 237:f3da66175598 1060
mbed_official 237:f3da66175598 1061 /* SMBUS in mode Transmitter ---------------------------------------------------*/
mbed_official 237:f3da66175598 1062 if (((__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_TXIS) != RESET) || (__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_TCR) != RESET) || (__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_TC) != RESET) || (__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_STOPF) != RESET) || (__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_AF) != RESET)) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, (SMBUS_IT_TCI| SMBUS_IT_STOPI| SMBUS_IT_NACKI | SMBUS_IT_TXI)) != RESET))
mbed_official 237:f3da66175598 1063 {
mbed_official 237:f3da66175598 1064 /* Slave mode selected */
mbed_official 237:f3da66175598 1065 if ((hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_TX) == HAL_SMBUS_STATE_SLAVE_BUSY_TX)
mbed_official 237:f3da66175598 1066 {
mbed_official 237:f3da66175598 1067 SMBUS_Slave_ISR(hsmbus);
mbed_official 237:f3da66175598 1068 }
mbed_official 237:f3da66175598 1069 /* Master mode selected */
mbed_official 237:f3da66175598 1070 else if((hsmbus->State & HAL_SMBUS_STATE_MASTER_BUSY_TX) == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 1071 {
mbed_official 237:f3da66175598 1072 SMBUS_Master_ISR(hsmbus);
mbed_official 237:f3da66175598 1073 }
mbed_official 237:f3da66175598 1074 }
mbed_official 237:f3da66175598 1075
mbed_official 237:f3da66175598 1076 /* SMBUS in mode Receiver ----------------------------------------------------*/
mbed_official 237:f3da66175598 1077 if (((__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_RXNE) != RESET) || (__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_TCR) != RESET) || (__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_TC) != RESET) || (__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_STOPF) != RESET) || (__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_AF) != RESET)) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, (SMBUS_IT_TCI| SMBUS_IT_STOPI| SMBUS_IT_NACKI | SMBUS_IT_RXI)) != RESET))
mbed_official 237:f3da66175598 1078 {
mbed_official 237:f3da66175598 1079 /* Slave mode selected */
mbed_official 237:f3da66175598 1080 if ((hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_RX) == HAL_SMBUS_STATE_SLAVE_BUSY_RX)
mbed_official 237:f3da66175598 1081 {
mbed_official 237:f3da66175598 1082 SMBUS_Slave_ISR(hsmbus);
mbed_official 237:f3da66175598 1083 }
mbed_official 237:f3da66175598 1084 /* Master mode selected */
mbed_official 237:f3da66175598 1085 else if((hsmbus->State & HAL_SMBUS_STATE_MASTER_BUSY_RX) == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 1086 {
mbed_official 237:f3da66175598 1087 SMBUS_Master_ISR(hsmbus);
mbed_official 237:f3da66175598 1088 }
mbed_official 237:f3da66175598 1089 }
mbed_official 237:f3da66175598 1090
mbed_official 237:f3da66175598 1091 /* SMBUS in mode Listener Only --------------------------------------------------*/
mbed_official 237:f3da66175598 1092 if (((__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_ADDR) != RESET) || (__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_STOPF) != RESET) || (__SMBUS_CHECK_FLAG(tmpisrvalue, SMBUS_FLAG_AF) != RESET))
mbed_official 237:f3da66175598 1093 && ((__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ADDRI) != RESET) || (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_STOPI) != RESET) || (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_NACKI) != RESET)))
mbed_official 237:f3da66175598 1094 {
mbed_official 237:f3da66175598 1095 if (hsmbus->State == HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 1096 {
mbed_official 237:f3da66175598 1097 SMBUS_Slave_ISR(hsmbus);
mbed_official 237:f3da66175598 1098 }
mbed_official 237:f3da66175598 1099 }
mbed_official 237:f3da66175598 1100 }
mbed_official 237:f3da66175598 1101
mbed_official 237:f3da66175598 1102 /**
mbed_official 237:f3da66175598 1103 * @brief This function handles SMBUS error interrupt request.
mbed_official 237:f3da66175598 1104 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1105 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1106 * @retval None
mbed_official 237:f3da66175598 1107 */
mbed_official 237:f3da66175598 1108 void HAL_SMBUS_ER_IRQHandler(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1109 {
mbed_official 237:f3da66175598 1110 /* SMBUS Bus error interrupt occurred ------------------------------------*/
mbed_official 237:f3da66175598 1111 if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_BERR) != RESET) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ERRI) != RESET))
mbed_official 237:f3da66175598 1112 {
mbed_official 237:f3da66175598 1113 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_BERR;
mbed_official 237:f3da66175598 1114
mbed_official 237:f3da66175598 1115 /* Clear BERR flag */
mbed_official 237:f3da66175598 1116 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_BERR);
mbed_official 237:f3da66175598 1117 }
mbed_official 237:f3da66175598 1118
mbed_official 237:f3da66175598 1119 /* SMBUS Over-Run/Under-Run interrupt occurred ----------------------------------------*/
mbed_official 237:f3da66175598 1120 if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_OVR) != RESET) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ERRI) != RESET))
mbed_official 237:f3da66175598 1121 {
mbed_official 237:f3da66175598 1122 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_OVR;
mbed_official 237:f3da66175598 1123
mbed_official 237:f3da66175598 1124 /* Clear OVR flag */
mbed_official 237:f3da66175598 1125 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_OVR);
mbed_official 237:f3da66175598 1126 }
mbed_official 237:f3da66175598 1127
mbed_official 237:f3da66175598 1128 /* SMBUS Arbitration Loss error interrupt occurred ------------------------------------*/
mbed_official 237:f3da66175598 1129 if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_ARLO) != RESET) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ERRI) != RESET))
mbed_official 237:f3da66175598 1130 {
mbed_official 237:f3da66175598 1131 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_ARLO;
mbed_official 237:f3da66175598 1132
mbed_official 237:f3da66175598 1133 /* Clear ARLO flag */
mbed_official 237:f3da66175598 1134 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_ARLO);
mbed_official 237:f3da66175598 1135 }
mbed_official 237:f3da66175598 1136
mbed_official 237:f3da66175598 1137 /* SMBUS Timeout error interrupt occurred ---------------------------------------------*/
mbed_official 237:f3da66175598 1138 if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TIMEOUT) != RESET) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ERRI) != RESET))
mbed_official 237:f3da66175598 1139 {
mbed_official 237:f3da66175598 1140 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_BUSTIMEOUT;
mbed_official 237:f3da66175598 1141
mbed_official 237:f3da66175598 1142 /* Clear TIMEOUT flag */
mbed_official 237:f3da66175598 1143 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_TIMEOUT);
mbed_official 237:f3da66175598 1144 }
mbed_official 237:f3da66175598 1145
mbed_official 237:f3da66175598 1146 /* SMBUS Alert error interrupt occurred -----------------------------------------------*/
mbed_official 237:f3da66175598 1147 if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_ALERT) != RESET) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ERRI) != RESET))
mbed_official 237:f3da66175598 1148 {
mbed_official 237:f3da66175598 1149 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_ALERT;
mbed_official 237:f3da66175598 1150
mbed_official 237:f3da66175598 1151 /* Clear ALERT flag */
mbed_official 237:f3da66175598 1152 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_ALERT);
mbed_official 237:f3da66175598 1153 }
mbed_official 237:f3da66175598 1154
mbed_official 237:f3da66175598 1155 /* SMBUS Packet Error Check error interrupt occurred ----------------------------------*/
mbed_official 237:f3da66175598 1156 if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_PECERR) != RESET) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ERRI) != RESET))
mbed_official 237:f3da66175598 1157 {
mbed_official 237:f3da66175598 1158 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_PECERR;
mbed_official 237:f3da66175598 1159
mbed_official 237:f3da66175598 1160 /* Clear PEC error flag */
mbed_official 237:f3da66175598 1161 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_PECERR);
mbed_official 237:f3da66175598 1162 }
mbed_official 237:f3da66175598 1163
mbed_official 237:f3da66175598 1164 /* Call the Error Callback in case of Error detected */
mbed_official 237:f3da66175598 1165 if((hsmbus->ErrorCode != HAL_SMBUS_ERROR_NONE)&&(hsmbus->ErrorCode != HAL_SMBUS_ERROR_ACKF))
mbed_official 237:f3da66175598 1166 {
mbed_official 237:f3da66175598 1167 /* Do not Reset the the HAL state in case of ALERT error */
mbed_official 237:f3da66175598 1168 if((hsmbus->ErrorCode & HAL_SMBUS_ERROR_ALERT) != HAL_SMBUS_ERROR_ALERT)
mbed_official 237:f3da66175598 1169 {
mbed_official 375:3d36234a1087 1170 if(((hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_TX) == HAL_SMBUS_STATE_SLAVE_BUSY_TX)
mbed_official 375:3d36234a1087 1171 || ((hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_RX) == HAL_SMBUS_STATE_SLAVE_BUSY_RX))
mbed_official 375:3d36234a1087 1172 {
mbed_official 375:3d36234a1087 1173 /* Reset only HAL_SMBUS_STATE_SLAVE_BUSY_XX */
mbed_official 375:3d36234a1087 1174 /* keep HAL_SMBUS_STATE_LISTEN if set */
mbed_official 375:3d36234a1087 1175 hsmbus->PreviousState = HAL_SMBUS_STATE_READY;
mbed_official 375:3d36234a1087 1176 hsmbus->State = HAL_SMBUS_STATE_LISTEN;
mbed_official 375:3d36234a1087 1177 }
mbed_official 237:f3da66175598 1178 }
mbed_official 237:f3da66175598 1179
mbed_official 237:f3da66175598 1180 /* Call the Error callback to prevent upper layer */
mbed_official 237:f3da66175598 1181 HAL_SMBUS_ErrorCallback(hsmbus);
mbed_official 237:f3da66175598 1182 }
mbed_official 237:f3da66175598 1183 }
mbed_official 237:f3da66175598 1184
mbed_official 237:f3da66175598 1185 /**
mbed_official 237:f3da66175598 1186 * @brief Master Tx Transfer completed callbacks.
mbed_official 237:f3da66175598 1187 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1188 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1189 * @retval None
mbed_official 237:f3da66175598 1190 */
mbed_official 237:f3da66175598 1191 __weak void HAL_SMBUS_MasterTxCpltCallback(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1192 {
mbed_official 237:f3da66175598 1193 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1194 the HAL_SMBUS_TxCpltCallback could be implemented in the user file
mbed_official 237:f3da66175598 1195 */
mbed_official 237:f3da66175598 1196 }
mbed_official 237:f3da66175598 1197
mbed_official 237:f3da66175598 1198 /**
mbed_official 237:f3da66175598 1199 * @brief Master Rx Transfer completed callbacks.
mbed_official 237:f3da66175598 1200 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1201 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1202 * @retval None
mbed_official 237:f3da66175598 1203 */
mbed_official 237:f3da66175598 1204 __weak void HAL_SMBUS_MasterRxCpltCallback(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1205 {
mbed_official 237:f3da66175598 1206 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1207 the HAL_SMBUS_TxCpltCallback could be implemented in the user file
mbed_official 237:f3da66175598 1208 */
mbed_official 237:f3da66175598 1209 }
mbed_official 237:f3da66175598 1210
mbed_official 237:f3da66175598 1211 /** @brief Slave Tx Transfer completed callbacks.
mbed_official 237:f3da66175598 1212 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1213 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1214 * @retval None
mbed_official 237:f3da66175598 1215 */
mbed_official 237:f3da66175598 1216 __weak void HAL_SMBUS_SlaveTxCpltCallback(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1217 {
mbed_official 237:f3da66175598 1218 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1219 the HAL_SMBUS_TxCpltCallback could be implemented in the user file
mbed_official 237:f3da66175598 1220 */
mbed_official 237:f3da66175598 1221 }
mbed_official 237:f3da66175598 1222
mbed_official 237:f3da66175598 1223 /**
mbed_official 237:f3da66175598 1224 * @brief Slave Rx Transfer completed callbacks.
mbed_official 237:f3da66175598 1225 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1226 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1227 * @retval None
mbed_official 237:f3da66175598 1228 */
mbed_official 237:f3da66175598 1229 __weak void HAL_SMBUS_SlaveRxCpltCallback(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1230 {
mbed_official 237:f3da66175598 1231 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1232 the HAL_SMBUS_TxCpltCallback could be implemented in the user file
mbed_official 237:f3da66175598 1233 */
mbed_official 237:f3da66175598 1234 }
mbed_official 237:f3da66175598 1235
mbed_official 237:f3da66175598 1236 /**
mbed_official 237:f3da66175598 1237 * @brief Slave Address Match callbacks.
mbed_official 237:f3da66175598 1238 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1239 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1240 * @param TransferDirection: Master request Transfer Direction (Write/Read)
mbed_official 237:f3da66175598 1241 * @param AddrMatchCode: Address Match Code
mbed_official 237:f3da66175598 1242 * @retval None
mbed_official 237:f3da66175598 1243 */
mbed_official 237:f3da66175598 1244 __weak void HAL_SMBUS_SlaveAddrCallback(SMBUS_HandleTypeDef *hsmbus, uint8_t TransferDirection, uint16_t AddrMatchCode)
mbed_official 237:f3da66175598 1245 {
mbed_official 237:f3da66175598 1246 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1247 the HAL_SMBUS_SlaveAddrCallback could be implemented in the user file
mbed_official 237:f3da66175598 1248 */
mbed_official 237:f3da66175598 1249 }
mbed_official 237:f3da66175598 1250
mbed_official 237:f3da66175598 1251 /**
mbed_official 237:f3da66175598 1252 * @brief Listen Complete callbacks.
mbed_official 237:f3da66175598 1253 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1254 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1255 * @retval None
mbed_official 237:f3da66175598 1256 */
mbed_official 237:f3da66175598 1257 __weak void HAL_SMBUS_SlaveListenCpltCallback(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1258 {
mbed_official 237:f3da66175598 1259 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1260 the HAL_SMBUS_SlaveListenCpltCallback could be implemented in the user file
mbed_official 237:f3da66175598 1261 */
mbed_official 237:f3da66175598 1262 }
mbed_official 237:f3da66175598 1263
mbed_official 237:f3da66175598 1264 /**
mbed_official 237:f3da66175598 1265 * @brief SMBUS error callbacks.
mbed_official 237:f3da66175598 1266 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1267 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1268 * @retval None
mbed_official 237:f3da66175598 1269 */
mbed_official 237:f3da66175598 1270 __weak void HAL_SMBUS_ErrorCallback(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1271 {
mbed_official 237:f3da66175598 1272 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1273 the HAL_SMBUS_ErrorCallback could be implemented in the user file
mbed_official 237:f3da66175598 1274 */
mbed_official 237:f3da66175598 1275 }
mbed_official 237:f3da66175598 1276
mbed_official 237:f3da66175598 1277 /**
mbed_official 237:f3da66175598 1278 * @}
mbed_official 237:f3da66175598 1279 */
mbed_official 237:f3da66175598 1280
mbed_official 375:3d36234a1087 1281 /**
mbed_official 375:3d36234a1087 1282 * @}
mbed_official 375:3d36234a1087 1283 */
mbed_official 375:3d36234a1087 1284
mbed_official 375:3d36234a1087 1285 /** @defgroup SMBUS_Exported_Functions_Group3 Peripheral State and Errors functions
mbed_official 237:f3da66175598 1286 * @brief Peripheral State and Errors functions
mbed_official 237:f3da66175598 1287 *
mbed_official 237:f3da66175598 1288 @verbatim
mbed_official 237:f3da66175598 1289 ===============================================================================
mbed_official 237:f3da66175598 1290 ##### Peripheral State and Errors functions #####
mbed_official 237:f3da66175598 1291 ===============================================================================
mbed_official 237:f3da66175598 1292 [..]
mbed_official 237:f3da66175598 1293 This subsection permit to get in run-time the status of the peripheral
mbed_official 237:f3da66175598 1294 and the data flow.
mbed_official 237:f3da66175598 1295
mbed_official 237:f3da66175598 1296 @endverbatim
mbed_official 237:f3da66175598 1297 * @{
mbed_official 237:f3da66175598 1298 */
mbed_official 237:f3da66175598 1299
mbed_official 237:f3da66175598 1300 /**
mbed_official 237:f3da66175598 1301 * @brief Returns the SMBUS state.
mbed_official 237:f3da66175598 1302 * @param hsmbus : SMBUS handle
mbed_official 237:f3da66175598 1303 * @retval HAL state
mbed_official 237:f3da66175598 1304 */
mbed_official 237:f3da66175598 1305 HAL_SMBUS_StateTypeDef HAL_SMBUS_GetState(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1306 {
mbed_official 237:f3da66175598 1307 return hsmbus->State;
mbed_official 237:f3da66175598 1308 }
mbed_official 237:f3da66175598 1309
mbed_official 237:f3da66175598 1310 /**
mbed_official 237:f3da66175598 1311 * @brief Return the SMBUS error code
mbed_official 237:f3da66175598 1312 * @param hsmbus : pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1313 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1314 * @retval SMBUS Error Code
mbed_official 237:f3da66175598 1315 */
mbed_official 237:f3da66175598 1316 uint32_t HAL_SMBUS_GetError(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1317 {
mbed_official 237:f3da66175598 1318 return hsmbus->ErrorCode;
mbed_official 237:f3da66175598 1319 }
mbed_official 237:f3da66175598 1320
mbed_official 237:f3da66175598 1321 /**
mbed_official 237:f3da66175598 1322 * @}
mbed_official 237:f3da66175598 1323 */
mbed_official 237:f3da66175598 1324
mbed_official 237:f3da66175598 1325 /**
mbed_official 375:3d36234a1087 1326 * @}
mbed_official 375:3d36234a1087 1327 */
mbed_official 375:3d36234a1087 1328
mbed_official 375:3d36234a1087 1329 /** @addtogroup SMBUS_Private_Functions SMBUS Private Functions
mbed_official 375:3d36234a1087 1330 * @brief Data transfers Private functions
mbed_official 375:3d36234a1087 1331 * @{
mbed_official 375:3d36234a1087 1332 */
mbed_official 375:3d36234a1087 1333
mbed_official 375:3d36234a1087 1334 /**
mbed_official 237:f3da66175598 1335 * @brief Interrupt Sub-Routine which handle the Interrupt Flags Master Mode
mbed_official 237:f3da66175598 1336 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1337 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1338 * @retval HAL status
mbed_official 237:f3da66175598 1339 */
mbed_official 237:f3da66175598 1340 static HAL_StatusTypeDef SMBUS_Master_ISR(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1341 {
mbed_official 237:f3da66175598 1342 uint16_t DevAddress;
mbed_official 237:f3da66175598 1343
mbed_official 237:f3da66175598 1344 /* Process Locked */
mbed_official 237:f3da66175598 1345 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 1346
mbed_official 237:f3da66175598 1347 if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_AF) != RESET)
mbed_official 237:f3da66175598 1348 {
mbed_official 237:f3da66175598 1349 /* Clear NACK Flag */
mbed_official 237:f3da66175598 1350 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_AF);
mbed_official 237:f3da66175598 1351
mbed_official 237:f3da66175598 1352 /* Set corresponding Error Code */
mbed_official 237:f3da66175598 1353 /* No need to generate STOP, it is automatically done */
mbed_official 237:f3da66175598 1354 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_ACKF;
mbed_official 237:f3da66175598 1355
mbed_official 237:f3da66175598 1356 /* Process Unlocked */
mbed_official 237:f3da66175598 1357 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1358
mbed_official 237:f3da66175598 1359 /* Call the Error callback to prevent upper layer */
mbed_official 237:f3da66175598 1360 HAL_SMBUS_ErrorCallback(hsmbus);
mbed_official 237:f3da66175598 1361 }
mbed_official 237:f3da66175598 1362 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_STOPF) != RESET)
mbed_official 237:f3da66175598 1363 {
mbed_official 237:f3da66175598 1364
mbed_official 237:f3da66175598 1365 /* Call the corresponding callback to inform upper layer of End of Transfer */
mbed_official 237:f3da66175598 1366 if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 1367 {
mbed_official 237:f3da66175598 1368 /* Disable Interrupt */
mbed_official 237:f3da66175598 1369 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_TX);
mbed_official 237:f3da66175598 1370
mbed_official 237:f3da66175598 1371 /* Clear STOP Flag */
mbed_official 237:f3da66175598 1372 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF);
mbed_official 237:f3da66175598 1373
mbed_official 237:f3da66175598 1374 /* Clear Configuration Register 2 */
mbed_official 237:f3da66175598 1375 __HAL_SMBUS_RESET_CR2(hsmbus);
mbed_official 237:f3da66175598 1376
mbed_official 237:f3da66175598 1377 /* Flush remaining data in Fifo register in case of error occurs before TXEmpty */
mbed_official 237:f3da66175598 1378 /* Disable the selected SMBUS peripheral */
mbed_official 237:f3da66175598 1379 __HAL_SMBUS_DISABLE(hsmbus);
mbed_official 237:f3da66175598 1380
mbed_official 237:f3da66175598 1381 hsmbus->PreviousState = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1382 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1383
mbed_official 237:f3da66175598 1384 /* Process Unlocked */
mbed_official 237:f3da66175598 1385 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1386
mbed_official 237:f3da66175598 1387 /* REenable the selected SMBUS peripheral */
mbed_official 237:f3da66175598 1388 __HAL_SMBUS_ENABLE(hsmbus);
mbed_official 237:f3da66175598 1389
mbed_official 237:f3da66175598 1390 HAL_SMBUS_MasterTxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1391 }
mbed_official 237:f3da66175598 1392 else if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 1393 {
mbed_official 237:f3da66175598 1394 /* Disable Interrupt */
mbed_official 237:f3da66175598 1395 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX);
mbed_official 237:f3da66175598 1396
mbed_official 237:f3da66175598 1397 /* Clear STOP Flag */
mbed_official 237:f3da66175598 1398 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF);
mbed_official 237:f3da66175598 1399
mbed_official 237:f3da66175598 1400 /* Clear Configuration Register 2 */
mbed_official 237:f3da66175598 1401 __HAL_SMBUS_RESET_CR2(hsmbus);
mbed_official 237:f3da66175598 1402
mbed_official 237:f3da66175598 1403 hsmbus->PreviousState = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1404 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1405
mbed_official 237:f3da66175598 1406 /* Process Unlocked */
mbed_official 237:f3da66175598 1407 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1408
mbed_official 237:f3da66175598 1409 HAL_SMBUS_MasterRxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1410 }
mbed_official 237:f3da66175598 1411 }
mbed_official 237:f3da66175598 1412 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_RXNE) != RESET)
mbed_official 237:f3da66175598 1413 {
mbed_official 237:f3da66175598 1414 /* Read data from RXDR */
mbed_official 237:f3da66175598 1415 (*hsmbus->pBuffPtr++) = hsmbus->Instance->RXDR;
mbed_official 237:f3da66175598 1416 hsmbus->XferSize--;
mbed_official 237:f3da66175598 1417 hsmbus->XferCount--;
mbed_official 237:f3da66175598 1418 }
mbed_official 237:f3da66175598 1419 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TXIS) != RESET)
mbed_official 237:f3da66175598 1420 {
mbed_official 237:f3da66175598 1421 /* Write data to TXDR */
mbed_official 237:f3da66175598 1422 hsmbus->Instance->TXDR = (*hsmbus->pBuffPtr++);
mbed_official 237:f3da66175598 1423 hsmbus->XferSize--;
mbed_official 237:f3da66175598 1424 hsmbus->XferCount--;
mbed_official 237:f3da66175598 1425 }
mbed_official 237:f3da66175598 1426 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TCR) != RESET)
mbed_official 237:f3da66175598 1427 {
mbed_official 237:f3da66175598 1428 if((hsmbus->XferSize == 0)&&(hsmbus->XferCount!=0))
mbed_official 237:f3da66175598 1429 {
mbed_official 237:f3da66175598 1430 DevAddress = (hsmbus->Instance->CR2 & I2C_CR2_SADD);
mbed_official 237:f3da66175598 1431
mbed_official 237:f3da66175598 1432 if(hsmbus->XferCount > MAX_NBYTE_SIZE)
mbed_official 237:f3da66175598 1433 {
mbed_official 237:f3da66175598 1434 SMBUS_TransferConfig(hsmbus, DevAddress, MAX_NBYTE_SIZE, (SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE)), SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 1435 hsmbus->XferSize = MAX_NBYTE_SIZE;
mbed_official 237:f3da66175598 1436 }
mbed_official 237:f3da66175598 1437 else
mbed_official 237:f3da66175598 1438 {
mbed_official 237:f3da66175598 1439 hsmbus->XferSize = hsmbus->XferCount;
mbed_official 237:f3da66175598 1440 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 1441 /* If PEC mode is enable, size to transmit should be Size-1 byte, corresponding to PEC byte */
mbed_official 237:f3da66175598 1442 /* PEC byte is automatically sent by HW block, no need to manage it in Transmit process */
mbed_official 237:f3da66175598 1443 if(__HAL_SMBUS_GET_PEC_MODE(hsmbus) != RESET)
mbed_official 237:f3da66175598 1444 {
mbed_official 237:f3da66175598 1445 hsmbus->XferSize--;
mbed_official 237:f3da66175598 1446 hsmbus->XferCount--;
mbed_official 237:f3da66175598 1447 }
mbed_official 237:f3da66175598 1448 }
mbed_official 237:f3da66175598 1449 }
mbed_official 237:f3da66175598 1450 else if((hsmbus->XferSize == 0)&&(hsmbus->XferCount==0))
mbed_official 237:f3da66175598 1451 {
mbed_official 237:f3da66175598 1452 /* Call TxCpltCallback if no stop mode is set */
mbed_official 237:f3da66175598 1453 if(__HAL_SMBUS_GET_STOP_MODE(hsmbus) != SMBUS_AUTOEND_MODE)
mbed_official 237:f3da66175598 1454 {
mbed_official 237:f3da66175598 1455 /* Call the corresponding callback to inform upper layer of End of Transfer */
mbed_official 237:f3da66175598 1456 if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 1457 {
mbed_official 237:f3da66175598 1458 /* Disable Interrupt */
mbed_official 237:f3da66175598 1459 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_TX);
mbed_official 237:f3da66175598 1460 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1461 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1462
mbed_official 237:f3da66175598 1463 /* Process Unlocked */
mbed_official 237:f3da66175598 1464 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1465
mbed_official 237:f3da66175598 1466 HAL_SMBUS_MasterTxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1467 }
mbed_official 237:f3da66175598 1468 else if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 1469 {
mbed_official 237:f3da66175598 1470 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX);
mbed_official 237:f3da66175598 1471 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1472 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1473
mbed_official 237:f3da66175598 1474 /* Process Unlocked */
mbed_official 237:f3da66175598 1475 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1476
mbed_official 237:f3da66175598 1477 HAL_SMBUS_MasterRxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1478 }
mbed_official 237:f3da66175598 1479 }
mbed_official 237:f3da66175598 1480 }
mbed_official 237:f3da66175598 1481 }
mbed_official 237:f3da66175598 1482 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TC) != RESET)
mbed_official 237:f3da66175598 1483 {
mbed_official 237:f3da66175598 1484 if(hsmbus->XferCount == 0)
mbed_official 237:f3da66175598 1485 {
mbed_official 237:f3da66175598 1486 /* Specific use case for Quick command */
mbed_official 634:ac7d6880524d 1487 if(hsmbus->pBuffPtr == HAL_NULL)
mbed_official 237:f3da66175598 1488 {
mbed_official 237:f3da66175598 1489 /* Generate a Stop command */
mbed_official 237:f3da66175598 1490 hsmbus->Instance->CR2 |= I2C_CR2_STOP;
mbed_official 237:f3da66175598 1491 }
mbed_official 237:f3da66175598 1492 /* Call TxCpltCallback if no stop mode is set */
mbed_official 237:f3da66175598 1493 else if(__HAL_SMBUS_GET_STOP_MODE(hsmbus) != SMBUS_AUTOEND_MODE)
mbed_official 237:f3da66175598 1494 {
mbed_official 237:f3da66175598 1495 /* No Generate Stop, to permit restart mode */
mbed_official 237:f3da66175598 1496 /* The stop will be done at the end of transfer, when SMBUS_AUTOEND_MODE enable */
mbed_official 237:f3da66175598 1497
mbed_official 237:f3da66175598 1498 /* Call the corresponding callback to inform upper layer of End of Transfer */
mbed_official 237:f3da66175598 1499 if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 1500 {
mbed_official 237:f3da66175598 1501 /* Disable Interrupt */
mbed_official 237:f3da66175598 1502 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_TX);
mbed_official 237:f3da66175598 1503 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1504 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1505
mbed_official 237:f3da66175598 1506 /* Process Unlocked */
mbed_official 237:f3da66175598 1507 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1508
mbed_official 237:f3da66175598 1509 HAL_SMBUS_MasterTxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1510 }
mbed_official 237:f3da66175598 1511 else if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 1512 {
mbed_official 237:f3da66175598 1513 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX);
mbed_official 237:f3da66175598 1514 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1515 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1516
mbed_official 237:f3da66175598 1517 /* Process Unlocked */
mbed_official 237:f3da66175598 1518 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1519
mbed_official 237:f3da66175598 1520 HAL_SMBUS_MasterRxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1521 }
mbed_official 237:f3da66175598 1522 }
mbed_official 237:f3da66175598 1523 }
mbed_official 237:f3da66175598 1524 }
mbed_official 237:f3da66175598 1525
mbed_official 237:f3da66175598 1526 /* Process Unlocked */
mbed_official 237:f3da66175598 1527 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1528
mbed_official 237:f3da66175598 1529 return HAL_OK;
mbed_official 237:f3da66175598 1530 }
mbed_official 237:f3da66175598 1531 /**
mbed_official 237:f3da66175598 1532 * @brief Interrupt Sub-Routine which handle the Interrupt Flags Slave Mode
mbed_official 237:f3da66175598 1533 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1534 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1535 * @retval HAL status
mbed_official 237:f3da66175598 1536 */
mbed_official 237:f3da66175598 1537 static HAL_StatusTypeDef SMBUS_Slave_ISR(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1538 {
mbed_official 237:f3da66175598 1539 uint8_t TransferDirection = 0;
mbed_official 237:f3da66175598 1540 uint16_t SlaveAddrCode = 0;
mbed_official 237:f3da66175598 1541
mbed_official 237:f3da66175598 1542 /* Process Locked */
mbed_official 237:f3da66175598 1543 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 1544
mbed_official 237:f3da66175598 1545 if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_AF) != RESET)
mbed_official 237:f3da66175598 1546 {
mbed_official 237:f3da66175598 1547 /* Check that SMBUS transfer finished */
mbed_official 237:f3da66175598 1548 /* if yes, normal usecase, a NACK is sent by the HOST when Transfer is finished */
mbed_official 237:f3da66175598 1549 /* Mean XferCount == 0*/
mbed_official 237:f3da66175598 1550 /* So clear Flag NACKF only */
mbed_official 237:f3da66175598 1551 if(hsmbus->XferCount == 0)
mbed_official 237:f3da66175598 1552 {
mbed_official 237:f3da66175598 1553 /* Clear NACK Flag */
mbed_official 237:f3da66175598 1554 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_AF);
mbed_official 237:f3da66175598 1555
mbed_official 237:f3da66175598 1556 /* Process Unlocked */
mbed_official 237:f3da66175598 1557 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1558 }
mbed_official 237:f3da66175598 1559 else
mbed_official 237:f3da66175598 1560 {
mbed_official 237:f3da66175598 1561 /* if no, error usecase, a Non-Acknowledge of last Data is generated by the HOST*/
mbed_official 237:f3da66175598 1562 /* Clear NACK Flag */
mbed_official 237:f3da66175598 1563 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_AF);
mbed_official 237:f3da66175598 1564
mbed_official 237:f3da66175598 1565 /* Set HAL State to "Idle" State, mean to LISTEN state */
mbed_official 237:f3da66175598 1566 /* So reset Slave Busy state */
mbed_official 237:f3da66175598 1567 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1568 hsmbus->State &= ~((uint32_t)HAL_SMBUS_STATE_SLAVE_BUSY_TX);
mbed_official 237:f3da66175598 1569 hsmbus->State &= ~((uint32_t)HAL_SMBUS_STATE_SLAVE_BUSY_RX);
mbed_official 237:f3da66175598 1570
mbed_official 237:f3da66175598 1571 /* Disable RX/TX Interrupts, keep only ADDR Interrupt */
mbed_official 237:f3da66175598 1572 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX | SMBUS_IT_TX);
mbed_official 375:3d36234a1087 1573
mbed_official 237:f3da66175598 1574 /* Set ErrorCode corresponding to a Non-Acknowledge */
mbed_official 237:f3da66175598 1575 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_ACKF;
mbed_official 237:f3da66175598 1576
mbed_official 237:f3da66175598 1577 /* Process Unlocked */
mbed_official 237:f3da66175598 1578 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1579
mbed_official 237:f3da66175598 1580 /* Call the Error callback to prevent upper layer */
mbed_official 237:f3da66175598 1581 HAL_SMBUS_ErrorCallback(hsmbus);
mbed_official 237:f3da66175598 1582 }
mbed_official 237:f3da66175598 1583 }
mbed_official 237:f3da66175598 1584 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_ADDR) != RESET)
mbed_official 237:f3da66175598 1585 {
mbed_official 237:f3da66175598 1586 TransferDirection = __HAL_SMBUS_GET_DIR(hsmbus);
mbed_official 237:f3da66175598 1587 SlaveAddrCode = __HAL_SMBUS_GET_ADDR_MATCH(hsmbus);
mbed_official 237:f3da66175598 1588
mbed_official 237:f3da66175598 1589 /* Disable ADDR interrupt to prevent multiple ADDRInterrupt*/
mbed_official 237:f3da66175598 1590 /* Other ADDRInterrupt will be treat in next Listen usecase */
mbed_official 237:f3da66175598 1591 __HAL_SMBUS_DISABLE_IT(hsmbus, SMBUS_IT_ADDRI);
mbed_official 237:f3da66175598 1592
mbed_official 237:f3da66175598 1593 /* Process Unlocked */
mbed_official 237:f3da66175598 1594 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1595
mbed_official 237:f3da66175598 1596 /* Call Slave Addr callback */
mbed_official 237:f3da66175598 1597 HAL_SMBUS_SlaveAddrCallback(hsmbus, TransferDirection, SlaveAddrCode);
mbed_official 237:f3da66175598 1598 }
mbed_official 237:f3da66175598 1599 else if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_RXNE) != RESET) || (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TCR) != RESET))
mbed_official 237:f3da66175598 1600 {
mbed_official 237:f3da66175598 1601 if( (hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_RX) == HAL_SMBUS_STATE_SLAVE_BUSY_RX)
mbed_official 237:f3da66175598 1602 {
mbed_official 237:f3da66175598 1603 /* Read data from RXDR */
mbed_official 237:f3da66175598 1604 (*hsmbus->pBuffPtr++) = hsmbus->Instance->RXDR;
mbed_official 237:f3da66175598 1605 hsmbus->XferSize--;
mbed_official 237:f3da66175598 1606 hsmbus->XferCount--;
mbed_official 237:f3da66175598 1607
mbed_official 237:f3da66175598 1608 if(hsmbus->XferCount == 1)
mbed_official 237:f3da66175598 1609 {
mbed_official 237:f3da66175598 1610 /* Receive last Byte, can be PEC byte in case of PEC BYTE enabled */
mbed_official 237:f3da66175598 1611 /* or only the last Byte of Transfer */
mbed_official 237:f3da66175598 1612 /* So reset the RELOAD bit mode */
mbed_official 237:f3da66175598 1613 hsmbus->XferOptions &= ~SMBUS_RELOAD_MODE;
mbed_official 237:f3da66175598 1614 SMBUS_TransferConfig(hsmbus,0 ,1 , hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 1615 }
mbed_official 237:f3da66175598 1616 else if(hsmbus->XferCount == 0)
mbed_official 237:f3da66175598 1617 {
mbed_official 237:f3da66175598 1618 /* Last Byte is received, disable Interrupt */
mbed_official 237:f3da66175598 1619 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX);
mbed_official 237:f3da66175598 1620
mbed_official 237:f3da66175598 1621 /* Remove HAL_SMBUS_STATE_SLAVE_BUSY_RX, keep only HAL_SMBUS_STATE_LISTEN */
mbed_official 237:f3da66175598 1622 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1623 hsmbus->State &= ~((uint32_t)HAL_SMBUS_STATE_SLAVE_BUSY_RX);
mbed_official 237:f3da66175598 1624
mbed_official 237:f3da66175598 1625 /* Process Unlocked */
mbed_official 237:f3da66175598 1626 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1627
mbed_official 237:f3da66175598 1628 /* Call the Rx complete callback to inform upper layer of the end of receive process */
mbed_official 237:f3da66175598 1629 HAL_SMBUS_SlaveRxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1630 }
mbed_official 237:f3da66175598 1631 else
mbed_official 237:f3da66175598 1632 {
mbed_official 237:f3da66175598 1633 /* Set Reload for next Bytes */
mbed_official 237:f3da66175598 1634 SMBUS_TransferConfig(hsmbus,0, 1, SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE), SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 1635
mbed_official 237:f3da66175598 1636 /* Ack last Byte Read */
mbed_official 237:f3da66175598 1637 hsmbus->Instance->CR2 &= ~I2C_CR2_NACK;
mbed_official 237:f3da66175598 1638 }
mbed_official 237:f3da66175598 1639 }
mbed_official 237:f3da66175598 1640 else if( (hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_TX) == HAL_SMBUS_STATE_SLAVE_BUSY_TX)
mbed_official 237:f3da66175598 1641 {
mbed_official 237:f3da66175598 1642 if((hsmbus->XferSize == 0)&&(hsmbus->XferCount!=0))
mbed_official 237:f3da66175598 1643 {
mbed_official 237:f3da66175598 1644 if(hsmbus->XferCount > MAX_NBYTE_SIZE)
mbed_official 237:f3da66175598 1645 {
mbed_official 237:f3da66175598 1646 SMBUS_TransferConfig(hsmbus, 0, MAX_NBYTE_SIZE, (SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE)), SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 1647 hsmbus->XferSize = MAX_NBYTE_SIZE;
mbed_official 237:f3da66175598 1648 }
mbed_official 237:f3da66175598 1649 else
mbed_official 237:f3da66175598 1650 {
mbed_official 237:f3da66175598 1651 hsmbus->XferSize = hsmbus->XferCount;
mbed_official 237:f3da66175598 1652 SMBUS_TransferConfig(hsmbus, 0, hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 1653 /* If PEC mode is enable, size to transmit should be Size-1 byte, corresponding to PEC byte */
mbed_official 237:f3da66175598 1654 /* PEC byte is automatically sent by HW block, no need to manage it in Transmit process */
mbed_official 237:f3da66175598 1655 if(__HAL_SMBUS_GET_PEC_MODE(hsmbus) != RESET)
mbed_official 237:f3da66175598 1656 {
mbed_official 237:f3da66175598 1657 hsmbus->XferSize--;
mbed_official 237:f3da66175598 1658 hsmbus->XferCount--;
mbed_official 237:f3da66175598 1659 }
mbed_official 237:f3da66175598 1660 }
mbed_official 237:f3da66175598 1661 }
mbed_official 237:f3da66175598 1662 }
mbed_official 237:f3da66175598 1663 }
mbed_official 237:f3da66175598 1664 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TXIS) != RESET)
mbed_official 237:f3da66175598 1665 {
mbed_official 237:f3da66175598 1666 /* Write data to TXDR only if XferCount not reach "0" */
mbed_official 237:f3da66175598 1667 /* A TXIS flag can be set, during STOP treatment */
mbed_official 237:f3da66175598 1668 /* Check if all Datas have already been sent */
mbed_official 237:f3da66175598 1669 /* If it is the case, this last write in TXDR is not sent, correspond to a dummy TXIS event */
mbed_official 237:f3da66175598 1670 if(hsmbus->XferCount > 0)
mbed_official 237:f3da66175598 1671 {
mbed_official 237:f3da66175598 1672 /* Write data to TXDR */
mbed_official 237:f3da66175598 1673 hsmbus->Instance->TXDR = (*hsmbus->pBuffPtr++);
mbed_official 237:f3da66175598 1674 hsmbus->XferCount--;
mbed_official 237:f3da66175598 1675 hsmbus->XferSize--;
mbed_official 237:f3da66175598 1676 }
mbed_official 237:f3da66175598 1677
mbed_official 237:f3da66175598 1678 if(hsmbus->XferCount == 0)
mbed_official 237:f3da66175598 1679 {
mbed_official 237:f3da66175598 1680 /* Last Byte is Transmitted */
mbed_official 237:f3da66175598 1681 /* Remove HAL_SMBUS_STATE_SLAVE_BUSY_TX, keep only HAL_SMBUS_STATE_LISTEN */
mbed_official 237:f3da66175598 1682 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_TX);
mbed_official 237:f3da66175598 1683 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1684 hsmbus->State &= ~((uint32_t)HAL_SMBUS_STATE_SLAVE_BUSY_TX);
mbed_official 237:f3da66175598 1685
mbed_official 237:f3da66175598 1686 /* Process Unlocked */
mbed_official 237:f3da66175598 1687 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1688
mbed_official 237:f3da66175598 1689 /* Call the Tx complete callback to inform upper layer of the end of transmit process */
mbed_official 237:f3da66175598 1690 HAL_SMBUS_SlaveTxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1691 }
mbed_official 237:f3da66175598 1692 }
mbed_official 237:f3da66175598 1693
mbed_official 237:f3da66175598 1694 /* Check if STOPF is set */
mbed_official 237:f3da66175598 1695 if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_STOPF) != RESET)
mbed_official 237:f3da66175598 1696 {
mbed_official 237:f3da66175598 1697 if((hsmbus->State & HAL_SMBUS_STATE_LISTEN) == HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 1698 {
mbed_official 237:f3da66175598 1699 /* Disable RX and TX Interrupts */
mbed_official 237:f3da66175598 1700 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX | SMBUS_IT_TX);
mbed_official 237:f3da66175598 1701
mbed_official 237:f3da66175598 1702 /* Disable ADDR Interrupt */
mbed_official 237:f3da66175598 1703 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ADDR);
mbed_official 237:f3da66175598 1704
mbed_official 237:f3da66175598 1705 /* Disable Address Acknowledge */
mbed_official 237:f3da66175598 1706 hsmbus->Instance->CR2 |= I2C_CR2_NACK;
mbed_official 237:f3da66175598 1707
mbed_official 237:f3da66175598 1708 /* Clear Configuration Register 2 */
mbed_official 237:f3da66175598 1709 __HAL_SMBUS_RESET_CR2(hsmbus);
mbed_official 237:f3da66175598 1710
mbed_official 237:f3da66175598 1711 /* Clear STOP Flag */
mbed_official 237:f3da66175598 1712 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF);
mbed_official 237:f3da66175598 1713
mbed_official 237:f3da66175598 1714 /* Clear ADDR flag */
mbed_official 237:f3da66175598 1715 __HAL_SMBUS_CLEAR_FLAG(hsmbus,SMBUS_FLAG_ADDR);
mbed_official 237:f3da66175598 1716
mbed_official 237:f3da66175598 1717 hsmbus->XferOptions = 0;
mbed_official 237:f3da66175598 1718 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1719 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1720
mbed_official 237:f3da66175598 1721 /* Process Unlocked */
mbed_official 237:f3da66175598 1722 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1723
mbed_official 237:f3da66175598 1724 /* Call the Listen Complete callback, to prevent upper layer of the end of Listen usecase */
mbed_official 237:f3da66175598 1725 HAL_SMBUS_SlaveListenCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1726 }
mbed_official 237:f3da66175598 1727 }
mbed_official 237:f3da66175598 1728
mbed_official 237:f3da66175598 1729 /* Process Unlocked */
mbed_official 237:f3da66175598 1730 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1731
mbed_official 237:f3da66175598 1732 return HAL_OK;
mbed_official 237:f3da66175598 1733 }
mbed_official 237:f3da66175598 1734 /**
mbed_official 237:f3da66175598 1735 * @brief Manage the enabling of Interrupts
mbed_official 237:f3da66175598 1736 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1737 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1738 * @param InterruptRequest : Value of @ref SMBUS_Interrupt_configuration_definition.
mbed_official 237:f3da66175598 1739 * @retval HAL status
mbed_official 237:f3da66175598 1740 */
mbed_official 237:f3da66175598 1741 static HAL_StatusTypeDef SMBUS_Enable_IRQ(SMBUS_HandleTypeDef *hsmbus, uint16_t InterruptRequest)
mbed_official 237:f3da66175598 1742 {
mbed_official 237:f3da66175598 1743 uint32_t tmpisr = 0;
mbed_official 237:f3da66175598 1744
mbed_official 237:f3da66175598 1745 if((InterruptRequest & SMBUS_IT_ALERT) == SMBUS_IT_ALERT)
mbed_official 237:f3da66175598 1746 {
mbed_official 237:f3da66175598 1747 /* Enable ERR interrupt */
mbed_official 237:f3da66175598 1748 tmpisr |= SMBUS_IT_ERRI;
mbed_official 237:f3da66175598 1749 }
mbed_official 237:f3da66175598 1750
mbed_official 237:f3da66175598 1751 if((InterruptRequest & SMBUS_IT_ADDR) == SMBUS_IT_ADDR)
mbed_official 237:f3da66175598 1752 {
mbed_official 237:f3da66175598 1753 /* Enable ADDR, STOP interrupt */
mbed_official 237:f3da66175598 1754 tmpisr |= SMBUS_IT_ADDRI | SMBUS_IT_STOPI | SMBUS_IT_NACKI | SMBUS_IT_ERRI;
mbed_official 237:f3da66175598 1755 }
mbed_official 237:f3da66175598 1756
mbed_official 237:f3da66175598 1757 if((InterruptRequest & SMBUS_IT_TX) == SMBUS_IT_TX)
mbed_official 237:f3da66175598 1758 {
mbed_official 237:f3da66175598 1759 /* Enable ERR, TC, STOP, NACK, RXI interrupt */
mbed_official 237:f3da66175598 1760 tmpisr |= SMBUS_IT_ERRI | SMBUS_IT_TCI | SMBUS_IT_STOPI | SMBUS_IT_NACKI | SMBUS_IT_TXI;
mbed_official 237:f3da66175598 1761 }
mbed_official 237:f3da66175598 1762
mbed_official 237:f3da66175598 1763 if((InterruptRequest & SMBUS_IT_RX) == SMBUS_IT_RX)
mbed_official 237:f3da66175598 1764 {
mbed_official 237:f3da66175598 1765 /* Enable ERR, TC, STOP, NACK, TXI interrupt */
mbed_official 237:f3da66175598 1766 tmpisr |= SMBUS_IT_ERRI | SMBUS_IT_TCI | SMBUS_IT_STOPI | SMBUS_IT_NACKI | SMBUS_IT_RXI;
mbed_official 237:f3da66175598 1767 }
mbed_official 237:f3da66175598 1768
mbed_official 237:f3da66175598 1769 /* Enable interrupts only at the end */
mbed_official 237:f3da66175598 1770 /* to avoid the risk of SMBUS interrupt handle execution before */
mbed_official 237:f3da66175598 1771 /* all interrupts requested done */
mbed_official 237:f3da66175598 1772 __HAL_SMBUS_ENABLE_IT(hsmbus, tmpisr);
mbed_official 237:f3da66175598 1773
mbed_official 237:f3da66175598 1774 return HAL_OK;
mbed_official 237:f3da66175598 1775 }
mbed_official 237:f3da66175598 1776 /**
mbed_official 237:f3da66175598 1777 * @brief Manage the disabling of Interrupts
mbed_official 237:f3da66175598 1778 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1779 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1780 * @param InterruptRequest : Value of @ref SMBUS_Interrupt_configuration_definition.
mbed_official 237:f3da66175598 1781 * @retval HAL status
mbed_official 237:f3da66175598 1782 */
mbed_official 237:f3da66175598 1783 static HAL_StatusTypeDef SMBUS_Disable_IRQ(SMBUS_HandleTypeDef *hsmbus, uint16_t InterruptRequest)
mbed_official 237:f3da66175598 1784 {
mbed_official 237:f3da66175598 1785 uint32_t tmpisr = 0;
mbed_official 237:f3da66175598 1786
mbed_official 237:f3da66175598 1787 if( ((InterruptRequest & SMBUS_IT_ALERT) == SMBUS_IT_ALERT) && (hsmbus->State == HAL_SMBUS_STATE_READY) )
mbed_official 237:f3da66175598 1788 {
mbed_official 237:f3da66175598 1789 /* Disable ERR interrupt */
mbed_official 237:f3da66175598 1790 tmpisr |= SMBUS_IT_ERRI;
mbed_official 237:f3da66175598 1791 }
mbed_official 237:f3da66175598 1792
mbed_official 237:f3da66175598 1793 if((InterruptRequest & SMBUS_IT_TX) == SMBUS_IT_TX)
mbed_official 237:f3da66175598 1794 {
mbed_official 237:f3da66175598 1795 /* Disable TC, STOP, NACK, TXI interrupt */
mbed_official 237:f3da66175598 1796 tmpisr |= SMBUS_IT_TCI | SMBUS_IT_TXI;
mbed_official 237:f3da66175598 1797
mbed_official 237:f3da66175598 1798 if((__HAL_SMBUS_GET_ALERT_ENABLED(hsmbus) == RESET)
mbed_official 237:f3da66175598 1799 && ((hsmbus->State & HAL_SMBUS_STATE_LISTEN) != HAL_SMBUS_STATE_LISTEN))
mbed_official 237:f3da66175598 1800 {
mbed_official 237:f3da66175598 1801 /* Disable ERR interrupt */
mbed_official 237:f3da66175598 1802 tmpisr |= SMBUS_IT_ERRI;
mbed_official 237:f3da66175598 1803 }
mbed_official 237:f3da66175598 1804
mbed_official 237:f3da66175598 1805 if((hsmbus->State & HAL_SMBUS_STATE_LISTEN) != HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 1806 {
mbed_official 237:f3da66175598 1807 /* Disable STOPI, NACKI */
mbed_official 237:f3da66175598 1808 tmpisr |= SMBUS_IT_STOPI | SMBUS_IT_NACKI;
mbed_official 237:f3da66175598 1809 }
mbed_official 237:f3da66175598 1810 }
mbed_official 237:f3da66175598 1811
mbed_official 237:f3da66175598 1812 if((InterruptRequest & SMBUS_IT_RX) == SMBUS_IT_RX)
mbed_official 237:f3da66175598 1813 {
mbed_official 237:f3da66175598 1814 /* Disable TC, STOP, NACK, RXI interrupt */
mbed_official 237:f3da66175598 1815 tmpisr |= SMBUS_IT_TCI | SMBUS_IT_RXI;
mbed_official 237:f3da66175598 1816
mbed_official 237:f3da66175598 1817 if((__HAL_SMBUS_GET_ALERT_ENABLED(hsmbus) == RESET)
mbed_official 237:f3da66175598 1818 && ((hsmbus->State & HAL_SMBUS_STATE_LISTEN) != HAL_SMBUS_STATE_LISTEN))
mbed_official 237:f3da66175598 1819 {
mbed_official 237:f3da66175598 1820 /* Disable ERR interrupt */
mbed_official 237:f3da66175598 1821 tmpisr |= SMBUS_IT_ERRI;
mbed_official 237:f3da66175598 1822 }
mbed_official 237:f3da66175598 1823
mbed_official 237:f3da66175598 1824 if((hsmbus->State & HAL_SMBUS_STATE_LISTEN) != HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 1825 {
mbed_official 237:f3da66175598 1826 /* Disable STOPI, NACKI */
mbed_official 237:f3da66175598 1827 tmpisr |= SMBUS_IT_STOPI | SMBUS_IT_NACKI;
mbed_official 237:f3da66175598 1828 }
mbed_official 237:f3da66175598 1829 }
mbed_official 237:f3da66175598 1830
mbed_official 237:f3da66175598 1831 if((InterruptRequest & SMBUS_IT_ADDR) == SMBUS_IT_ADDR)
mbed_official 237:f3da66175598 1832 {
mbed_official 237:f3da66175598 1833 /* Enable ADDR, STOP interrupt */
mbed_official 237:f3da66175598 1834 tmpisr |= SMBUS_IT_ADDRI | SMBUS_IT_STOPI | SMBUS_IT_NACKI;
mbed_official 237:f3da66175598 1835
mbed_official 237:f3da66175598 1836 if(__HAL_SMBUS_GET_ALERT_ENABLED(hsmbus) == RESET)
mbed_official 237:f3da66175598 1837 {
mbed_official 237:f3da66175598 1838 /* Disable ERR interrupt */
mbed_official 237:f3da66175598 1839 tmpisr |= SMBUS_IT_ERRI;
mbed_official 237:f3da66175598 1840 }
mbed_official 237:f3da66175598 1841 }
mbed_official 237:f3da66175598 1842
mbed_official 237:f3da66175598 1843 /* Disable interrupts only at the end */
mbed_official 237:f3da66175598 1844 /* to avoid a breaking situation like at "t" time */
mbed_official 237:f3da66175598 1845 /* all disable interrupts request are not done */
mbed_official 237:f3da66175598 1846 __HAL_SMBUS_DISABLE_IT(hsmbus, tmpisr);
mbed_official 237:f3da66175598 1847
mbed_official 237:f3da66175598 1848 return HAL_OK;
mbed_official 237:f3da66175598 1849 }
mbed_official 237:f3da66175598 1850 /**
mbed_official 237:f3da66175598 1851 * @brief This function handles SMBUS Communication Timeout.
mbed_official 237:f3da66175598 1852 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1853 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1854 * @param Flag: specifies the SMBUS flag to check.
mbed_official 237:f3da66175598 1855 * @param Status: The new Flag status (SET or RESET).
mbed_official 237:f3da66175598 1856 * @param Timeout: Timeout duration
mbed_official 237:f3da66175598 1857 * @retval HAL status
mbed_official 237:f3da66175598 1858 */
mbed_official 237:f3da66175598 1859 static HAL_StatusTypeDef SMBUS_WaitOnFlagUntilTimeout(SMBUS_HandleTypeDef *hsmbus, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
mbed_official 237:f3da66175598 1860 {
mbed_official 237:f3da66175598 1861 uint32_t tickstart = HAL_GetTick();
mbed_official 237:f3da66175598 1862
mbed_official 237:f3da66175598 1863 /* Wait until flag is set */
mbed_official 237:f3da66175598 1864 if(Status == RESET)
mbed_official 237:f3da66175598 1865 {
mbed_official 237:f3da66175598 1866 while(__HAL_SMBUS_GET_FLAG(hsmbus, Flag) == RESET)
mbed_official 237:f3da66175598 1867 {
mbed_official 237:f3da66175598 1868 /* Check for the Timeout */
mbed_official 237:f3da66175598 1869 if(Timeout != HAL_MAX_DELAY)
mbed_official 237:f3da66175598 1870 {
mbed_official 237:f3da66175598 1871 if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
mbed_official 237:f3da66175598 1872 {
mbed_official 237:f3da66175598 1873 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1874 hsmbus->State= HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1875
mbed_official 237:f3da66175598 1876 /* Process Unlocked */
mbed_official 237:f3da66175598 1877 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1878
mbed_official 237:f3da66175598 1879 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 1880 }
mbed_official 237:f3da66175598 1881 }
mbed_official 237:f3da66175598 1882 }
mbed_official 237:f3da66175598 1883 }
mbed_official 237:f3da66175598 1884 else
mbed_official 237:f3da66175598 1885 {
mbed_official 237:f3da66175598 1886 while(__HAL_SMBUS_GET_FLAG(hsmbus, Flag) != RESET)
mbed_official 237:f3da66175598 1887 {
mbed_official 237:f3da66175598 1888 /* Check for the Timeout */
mbed_official 237:f3da66175598 1889 if(Timeout != HAL_MAX_DELAY)
mbed_official 237:f3da66175598 1890 {
mbed_official 237:f3da66175598 1891 if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
mbed_official 237:f3da66175598 1892 {
mbed_official 237:f3da66175598 1893 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1894 hsmbus->State= HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1895
mbed_official 237:f3da66175598 1896 /* Process Unlocked */
mbed_official 237:f3da66175598 1897 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1898
mbed_official 237:f3da66175598 1899 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 1900 }
mbed_official 237:f3da66175598 1901 }
mbed_official 237:f3da66175598 1902 }
mbed_official 237:f3da66175598 1903 }
mbed_official 237:f3da66175598 1904 return HAL_OK;
mbed_official 237:f3da66175598 1905 }
mbed_official 237:f3da66175598 1906
mbed_official 237:f3da66175598 1907 /**
mbed_official 237:f3da66175598 1908 * @brief Handles SMBUSx communication when starting transfer or during transfer (TC or TCR flag are set).
mbed_official 237:f3da66175598 1909 * @param hsmbus: SMBUS handle.
mbed_official 237:f3da66175598 1910 * @param DevAddress: specifies the slave address to be programmed.
mbed_official 237:f3da66175598 1911 * @param Size: specifies the number of bytes to be programmed.
mbed_official 237:f3da66175598 1912 * This parameter must be a value between 0 and 255.
mbed_official 237:f3da66175598 1913 * @param Mode: new state of the SMBUS START condition generation.
mbed_official 237:f3da66175598 1914 * This parameter can be one or a combination of the following values:
mbed_official 237:f3da66175598 1915 * @arg SMBUS_NO_MODE: No specific mode enabled.
mbed_official 237:f3da66175598 1916 * @arg SMBUS_RELOAD_MODE: Enable Reload mode.
mbed_official 237:f3da66175598 1917 * @arg SMBUS_AUTOEND_MODE: Enable Automatic end mode.
mbed_official 237:f3da66175598 1918 * @arg SMBUS_SOFTEND_MODE: Enable Software end mode and Reload mode.
mbed_official 237:f3da66175598 1919 * @param Request: new state of the SMBUS START condition generation.
mbed_official 237:f3da66175598 1920 * This parameter can be one of the following values:
mbed_official 237:f3da66175598 1921 * @arg SMBUS_NO_STARTSTOP: Don't Generate stop and start condition.
mbed_official 237:f3da66175598 1922 * @arg SMBUS_GENERATE_STOP: Generate stop condition (Size should be set to 0).
mbed_official 237:f3da66175598 1923 * @arg SMBUS_GENERATE_START_READ: Generate Restart for read request.
mbed_official 237:f3da66175598 1924 * @arg SMBUS_GENERATE_START_WRITE: Generate Restart for write request.
mbed_official 237:f3da66175598 1925 * @retval None
mbed_official 237:f3da66175598 1926 */
mbed_official 237:f3da66175598 1927 static void SMBUS_TransferConfig(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint8_t Size, uint32_t Mode, uint32_t Request)
mbed_official 237:f3da66175598 1928 {
mbed_official 237:f3da66175598 1929 uint32_t tmpreg = 0;
mbed_official 237:f3da66175598 1930
mbed_official 237:f3da66175598 1931 /* Check the parameters */
mbed_official 237:f3da66175598 1932 assert_param(IS_SMBUS_ALL_INSTANCE(hsmbus->Instance));
mbed_official 237:f3da66175598 1933 assert_param(IS_SMBUS_TRANSFER_MODE(Mode));
mbed_official 237:f3da66175598 1934 assert_param(IS_SMBUS_TRANSFER_REQUEST(Request));
mbed_official 237:f3da66175598 1935
mbed_official 237:f3da66175598 1936 /* Get the CR2 register value */
mbed_official 237:f3da66175598 1937 tmpreg = hsmbus->Instance->CR2;
mbed_official 237:f3da66175598 1938
mbed_official 237:f3da66175598 1939 /* clear tmpreg specific bits */
mbed_official 237:f3da66175598 1940 tmpreg &= (uint32_t)~((uint32_t)(I2C_CR2_SADD | I2C_CR2_NBYTES | I2C_CR2_RELOAD | I2C_CR2_AUTOEND | I2C_CR2_RD_WRN | I2C_CR2_START | I2C_CR2_STOP | I2C_CR2_PECBYTE));
mbed_official 237:f3da66175598 1941
mbed_official 237:f3da66175598 1942 /* update tmpreg */
mbed_official 237:f3da66175598 1943 tmpreg |= (uint32_t)(((uint32_t)DevAddress & I2C_CR2_SADD) | (((uint32_t)Size << 16 ) & I2C_CR2_NBYTES) | \
mbed_official 237:f3da66175598 1944 (uint32_t)Mode | (uint32_t)Request);
mbed_official 237:f3da66175598 1945
mbed_official 237:f3da66175598 1946 /* update CR2 register */
mbed_official 237:f3da66175598 1947 hsmbus->Instance->CR2 = tmpreg;
mbed_official 237:f3da66175598 1948 }
mbed_official 237:f3da66175598 1949 /**
mbed_official 237:f3da66175598 1950 * @}
mbed_official 237:f3da66175598 1951 */
mbed_official 237:f3da66175598 1952
mbed_official 237:f3da66175598 1953 #endif /* HAL_SMBUS_MODULE_ENABLED */
mbed_official 237:f3da66175598 1954 /**
mbed_official 237:f3da66175598 1955 * @}
mbed_official 237:f3da66175598 1956 */
mbed_official 237:f3da66175598 1957
mbed_official 237:f3da66175598 1958 /**
mbed_official 237:f3da66175598 1959 * @}
mbed_official 237:f3da66175598 1960 */
mbed_official 237:f3da66175598 1961
mbed_official 237:f3da66175598 1962 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/