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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F334R8/stm32f3xx_hal_smbus.c@237:f3da66175598, 2014-06-24 (annotated)

Committer:
mbed_official
Date:
Tue Jun 24 14:45:08 2014 +0100
Revision:
237:f3da66175598
Child:
375:3d36234a1087
Synchronized with git revision 8ef659bca81f12dfc896b5a7af7c2abbd1a1b8b7



Full URL: https://github.com/mbedmicro/mbed/commit/8ef659bca81f12dfc896b5a7af7c2abbd1a1b8b7/



[NUCLEO_F334R8] Add platform files

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 237:f3da66175598 5 * @version V1.0.1
mbed_official 237:f3da66175598 6 * @date 18-June-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 237:f3da66175598 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 237:f3da66175598 135 /** @defgroup SMBUS
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 237:f3da66175598 144 #define TIMING_CLEAR_MASK ((uint32_t)0xF0FFFFFF) /*<! SMBUS TIMING clear register Mask */
mbed_official 237:f3da66175598 145 #define HAL_TIMEOUT_ADDR ((uint32_t)10000) /* 10 s */
mbed_official 237:f3da66175598 146 #define HAL_TIMEOUT_BUSY ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 147 #define HAL_TIMEOUT_DIR ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 148 #define HAL_TIMEOUT_RXNE ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 149 #define HAL_TIMEOUT_STOPF ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 150 #define HAL_TIMEOUT_TC ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 151 #define HAL_TIMEOUT_TCR ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 152 #define HAL_TIMEOUT_TXIS ((uint32_t)25) /* 25 ms */
mbed_official 237:f3da66175598 153 #define MAX_NBYTE_SIZE 255
mbed_official 237:f3da66175598 154
mbed_official 237:f3da66175598 155 /* Private macro -------------------------------------------------------------*/
mbed_official 237:f3da66175598 156 #define __SMBUS_GET_ISR_REG(__HANDLE__) ((__HANDLE__)->Instance->ISR)
mbed_official 237:f3da66175598 157 #define __SMBUS_CHECK_FLAG(__ISR__, __FLAG__) ((((__ISR__) & ((__FLAG__) & SMBUS_FLAG_MASK)) == ((__FLAG__) & SMBUS_FLAG_MASK)))
mbed_official 237:f3da66175598 158
mbed_official 237:f3da66175598 159 /* Private variables ---------------------------------------------------------*/
mbed_official 237:f3da66175598 160 /* Private function prototypes -----------------------------------------------*/
mbed_official 237:f3da66175598 161 static HAL_StatusTypeDef SMBUS_WaitOnFlagUntilTimeout(SMBUS_HandleTypeDef *hsmbus, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
mbed_official 237:f3da66175598 162
mbed_official 237:f3da66175598 163 static HAL_StatusTypeDef SMBUS_Enable_IRQ(SMBUS_HandleTypeDef *hsmbus, uint16_t InterruptRequest);
mbed_official 237:f3da66175598 164 static HAL_StatusTypeDef SMBUS_Disable_IRQ(SMBUS_HandleTypeDef *hsmbus, uint16_t InterruptRequest);
mbed_official 237:f3da66175598 165 static HAL_StatusTypeDef SMBUS_Master_ISR(SMBUS_HandleTypeDef *hsmbus);
mbed_official 237:f3da66175598 166 static HAL_StatusTypeDef SMBUS_Slave_ISR(SMBUS_HandleTypeDef *hsmbus);
mbed_official 237:f3da66175598 167
mbed_official 237:f3da66175598 168 static void SMBUS_TransferConfig(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint8_t Size, uint32_t Mode, uint32_t Request);
mbed_official 237:f3da66175598 169
mbed_official 237:f3da66175598 170 /* Private functions ---------------------------------------------------------*/
mbed_official 237:f3da66175598 171
mbed_official 237:f3da66175598 172 /** @defgroup SMBUS_Private_Functions
mbed_official 237:f3da66175598 173 * @{
mbed_official 237:f3da66175598 174 */
mbed_official 237:f3da66175598 175
mbed_official 237:f3da66175598 176 /** @defgroup HAL_SMBUS_Group1 Initialization and de-initialization functions
mbed_official 237:f3da66175598 177 * @brief Initialization and Configuration functions
mbed_official 237:f3da66175598 178 *
mbed_official 237:f3da66175598 179 @verbatim
mbed_official 237:f3da66175598 180 ===============================================================================
mbed_official 237:f3da66175598 181 ##### Initialization and de-initialization functions #####
mbed_official 237:f3da66175598 182 ===============================================================================
mbed_official 237:f3da66175598 183 [..] This subsection provides a set of functions allowing to initialize and
mbed_official 237:f3da66175598 184 de-initialiaze the SMBUSx peripheral:
mbed_official 237:f3da66175598 185
mbed_official 237:f3da66175598 186 (+) User must Implement HAL_SMBUS_MspInit() function in which he configures
mbed_official 237:f3da66175598 187 all related peripherals resources (CLOCK, GPIO, IT and NVIC ).
mbed_official 237:f3da66175598 188
mbed_official 237:f3da66175598 189 (+) Call the function HAL_SMBUS_Init() to configure the selected device with
mbed_official 237:f3da66175598 190 the selected configuration:
mbed_official 237:f3da66175598 191 (++) Clock Timing
mbed_official 237:f3da66175598 192 (++) Bus Timeout
mbed_official 237:f3da66175598 193 (++) Analog Filer mode
mbed_official 237:f3da66175598 194 (++) Own Address 1
mbed_official 237:f3da66175598 195 (++) Addressing mode (Master, Slave)
mbed_official 237:f3da66175598 196 (++) Dual Addressing mode
mbed_official 237:f3da66175598 197 (++) Own Address 2
mbed_official 237:f3da66175598 198 (++) Own Address 2 Mask
mbed_official 237:f3da66175598 199 (++) General call mode
mbed_official 237:f3da66175598 200 (++) Nostretch mode
mbed_official 237:f3da66175598 201 (++) Packet Error Check mode
mbed_official 237:f3da66175598 202 (++) Peripheral mode
mbed_official 237:f3da66175598 203
mbed_official 237:f3da66175598 204
mbed_official 237:f3da66175598 205 (+) Call the function HAL_SMBUS_DeInit() to restore the default configuration
mbed_official 237:f3da66175598 206 of the selected SMBUSx periperal.
mbed_official 237:f3da66175598 207
mbed_official 237:f3da66175598 208 @endverbatim
mbed_official 237:f3da66175598 209 * @{
mbed_official 237:f3da66175598 210 */
mbed_official 237:f3da66175598 211
mbed_official 237:f3da66175598 212 /**
mbed_official 237:f3da66175598 213 * @brief Initializes the SMBUS according to the specified parameters
mbed_official 237:f3da66175598 214 * in the SMBUS_InitTypeDef and create the associated handle.
mbed_official 237:f3da66175598 215 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 216 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 217 * @retval HAL status
mbed_official 237:f3da66175598 218 */
mbed_official 237:f3da66175598 219 HAL_StatusTypeDef HAL_SMBUS_Init(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 220 {
mbed_official 237:f3da66175598 221 /* Check the SMBUS handle allocation */
mbed_official 237:f3da66175598 222 if(hsmbus == NULL)
mbed_official 237:f3da66175598 223 {
mbed_official 237:f3da66175598 224 return HAL_ERROR;
mbed_official 237:f3da66175598 225 }
mbed_official 237:f3da66175598 226
mbed_official 237:f3da66175598 227 /* Check the parameters */
mbed_official 237:f3da66175598 228 assert_param(IS_SMBUS_ALL_INSTANCE(hsmbus->Instance));
mbed_official 237:f3da66175598 229 assert_param(IS_SMBUS_ANALOG_FILTER(hsmbus->Init.AnalogFilter));
mbed_official 237:f3da66175598 230 assert_param(IS_SMBUS_OWN_ADDRESS1(hsmbus->Init.OwnAddress1));
mbed_official 237:f3da66175598 231 assert_param(IS_SMBUS_ADDRESSING_MODE(hsmbus->Init.AddressingMode));
mbed_official 237:f3da66175598 232 assert_param(IS_SMBUS_DUAL_ADDRESS(hsmbus->Init.DualAddressMode));
mbed_official 237:f3da66175598 233 assert_param(IS_SMBUS_OWN_ADDRESS2(hsmbus->Init.OwnAddress2));
mbed_official 237:f3da66175598 234 assert_param(IS_SMBUS_OWN_ADDRESS2_MASK(hsmbus->Init.OwnAddress2Masks));
mbed_official 237:f3da66175598 235 assert_param(IS_SMBUS_GENERAL_CALL(hsmbus->Init.GeneralCallMode));
mbed_official 237:f3da66175598 236 assert_param(IS_SMBUS_NO_STRETCH(hsmbus->Init.NoStretchMode));
mbed_official 237:f3da66175598 237 assert_param(IS_SMBUS_PEC(hsmbus->Init.PacketErrorCheckMode));
mbed_official 237:f3da66175598 238 assert_param(IS_SMBUS_PERIPHERAL_MODE(hsmbus->Init.PeripheralMode));
mbed_official 237:f3da66175598 239
mbed_official 237:f3da66175598 240 if(hsmbus->State == HAL_SMBUS_STATE_RESET)
mbed_official 237:f3da66175598 241 {
mbed_official 237:f3da66175598 242 /* Init the low level hardware : GPIO, CLOCK, NVIC */
mbed_official 237:f3da66175598 243 HAL_SMBUS_MspInit(hsmbus);
mbed_official 237:f3da66175598 244 }
mbed_official 237:f3da66175598 245
mbed_official 237:f3da66175598 246 hsmbus->State = HAL_SMBUS_STATE_BUSY;
mbed_official 237:f3da66175598 247
mbed_official 237:f3da66175598 248 /* Disable the selected SMBUS peripheral */
mbed_official 237:f3da66175598 249 __HAL_SMBUS_DISABLE(hsmbus);
mbed_official 237:f3da66175598 250
mbed_official 237:f3da66175598 251 /*---------------------------- SMBUSx TIMINGR Configuration ------------------------*/
mbed_official 237:f3da66175598 252 /* Configure SMBUSx: Frequency range */
mbed_official 237:f3da66175598 253 hsmbus->Instance->TIMINGR = hsmbus->Init.Timing & TIMING_CLEAR_MASK;
mbed_official 237:f3da66175598 254
mbed_official 237:f3da66175598 255 /*---------------------------- SMBUSx TIMEOUTR Configuration ------------------------*/
mbed_official 237:f3da66175598 256 /* Configure SMBUSx: Bus Timeout */
mbed_official 237:f3da66175598 257 hsmbus->Instance->TIMEOUTR &= ~I2C_TIMEOUTR_TIMOUTEN;
mbed_official 237:f3da66175598 258 hsmbus->Instance->TIMEOUTR &= ~I2C_TIMEOUTR_TEXTEN;
mbed_official 237:f3da66175598 259 hsmbus->Instance->TIMEOUTR = hsmbus->Init.SMBusTimeout;
mbed_official 237:f3da66175598 260
mbed_official 237:f3da66175598 261 /*---------------------------- SMBUSx OAR1 Configuration -----------------------*/
mbed_official 237:f3da66175598 262 /* Configure SMBUSx: Own Address1 and ack own address1 mode */
mbed_official 237:f3da66175598 263 hsmbus->Instance->OAR1 &= ~I2C_OAR1_OA1EN;
mbed_official 237:f3da66175598 264
mbed_official 237:f3da66175598 265 if(hsmbus->Init.OwnAddress1 != 0)
mbed_official 237:f3da66175598 266 {
mbed_official 237:f3da66175598 267 if(hsmbus->Init.AddressingMode == SMBUS_ADDRESSINGMODE_7BIT)
mbed_official 237:f3da66175598 268 {
mbed_official 237:f3da66175598 269 hsmbus->Instance->OAR1 = (I2C_OAR1_OA1EN | hsmbus->Init.OwnAddress1);
mbed_official 237:f3da66175598 270 }
mbed_official 237:f3da66175598 271 else /* SMBUS_ADDRESSINGMODE_10BIT */
mbed_official 237:f3da66175598 272 {
mbed_official 237:f3da66175598 273 hsmbus->Instance->OAR1 = (I2C_OAR1_OA1EN | I2C_OAR1_OA1MODE | hsmbus->Init.OwnAddress1);
mbed_official 237:f3da66175598 274 }
mbed_official 237:f3da66175598 275 }
mbed_official 237:f3da66175598 276
mbed_official 237:f3da66175598 277 /*---------------------------- SMBUSx CR2 Configuration ------------------------*/
mbed_official 237:f3da66175598 278 /* Configure SMBUSx: Addressing Master mode */
mbed_official 237:f3da66175598 279 if(hsmbus->Init.AddressingMode == SMBUS_ADDRESSINGMODE_10BIT)
mbed_official 237:f3da66175598 280 {
mbed_official 237:f3da66175598 281 hsmbus->Instance->CR2 = (I2C_CR2_ADD10);
mbed_official 237:f3da66175598 282 }
mbed_official 237:f3da66175598 283 /* Enable the AUTOEND by default, and enable NACK (should be disable only during Slave process) */
mbed_official 237:f3da66175598 284 /* AUTOEND and NACK bit will be manage during Transfer process */
mbed_official 237:f3da66175598 285 hsmbus->Instance->CR2 |= (I2C_CR2_AUTOEND | I2C_CR2_NACK);
mbed_official 237:f3da66175598 286
mbed_official 237:f3da66175598 287 /*---------------------------- SMBUSx OAR2 Configuration -----------------------*/
mbed_official 237:f3da66175598 288 /* Configure SMBUSx: Dual mode and Own Address2 */
mbed_official 237:f3da66175598 289 hsmbus->Instance->OAR2 = (hsmbus->Init.DualAddressMode | hsmbus->Init.OwnAddress2 | (hsmbus->Init.OwnAddress2Masks << 8));
mbed_official 237:f3da66175598 290
mbed_official 237:f3da66175598 291 /*---------------------------- SMBUSx CR1 Configuration ------------------------*/
mbed_official 237:f3da66175598 292 /* Configure SMBUSx: Generalcall and NoStretch mode */
mbed_official 237:f3da66175598 293 hsmbus->Instance->CR1 = (hsmbus->Init.GeneralCallMode | hsmbus->Init.NoStretchMode | hsmbus->Init.PacketErrorCheckMode | hsmbus->Init.PeripheralMode | hsmbus->Init.AnalogFilter);
mbed_official 237:f3da66175598 294
mbed_official 237:f3da66175598 295 /* 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 296 if( (hsmbus->Init.PacketErrorCheckMode == SMBUS_PEC_ENABLED)
mbed_official 237:f3da66175598 297 && ( (hsmbus->Init.PeripheralMode == SMBUS_PERIPHERAL_MODE_SMBUS_SLAVE) || (hsmbus->Init.PeripheralMode == SMBUS_PERIPHERAL_MODE_SMBUS_SLAVE_ARP) ) )
mbed_official 237:f3da66175598 298 {
mbed_official 237:f3da66175598 299 hsmbus->Instance->CR1 |= I2C_CR1_SBC;
mbed_official 237:f3da66175598 300 }
mbed_official 237:f3da66175598 301
mbed_official 237:f3da66175598 302 /* Enable the selected SMBUS peripheral */
mbed_official 237:f3da66175598 303 __HAL_SMBUS_ENABLE(hsmbus);
mbed_official 237:f3da66175598 304
mbed_official 237:f3da66175598 305 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 306 hsmbus->PreviousState = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 307 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 308
mbed_official 237:f3da66175598 309 return HAL_OK;
mbed_official 237:f3da66175598 310 }
mbed_official 237:f3da66175598 311
mbed_official 237:f3da66175598 312 /**
mbed_official 237:f3da66175598 313 * @brief DeInitializes the SMBUS peripheral.
mbed_official 237:f3da66175598 314 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 315 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 316 * @retval HAL status
mbed_official 237:f3da66175598 317 */
mbed_official 237:f3da66175598 318 HAL_StatusTypeDef HAL_SMBUS_DeInit(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 319 {
mbed_official 237:f3da66175598 320 /* Check the SMBUS handle allocation */
mbed_official 237:f3da66175598 321 if(hsmbus == NULL)
mbed_official 237:f3da66175598 322 {
mbed_official 237:f3da66175598 323 return HAL_ERROR;
mbed_official 237:f3da66175598 324 }
mbed_official 237:f3da66175598 325
mbed_official 237:f3da66175598 326 /* Check the parameters */
mbed_official 237:f3da66175598 327 assert_param(IS_SMBUS_ALL_INSTANCE(hsmbus->Instance));
mbed_official 237:f3da66175598 328
mbed_official 237:f3da66175598 329 hsmbus->State = HAL_SMBUS_STATE_BUSY;
mbed_official 237:f3da66175598 330
mbed_official 237:f3da66175598 331 /* Disable the SMBUS Peripheral Clock */
mbed_official 237:f3da66175598 332 __HAL_SMBUS_DISABLE(hsmbus);
mbed_official 237:f3da66175598 333
mbed_official 237:f3da66175598 334 /* DeInit the low level hardware: GPIO, CLOCK, NVIC */
mbed_official 237:f3da66175598 335 HAL_SMBUS_MspDeInit(hsmbus);
mbed_official 237:f3da66175598 336
mbed_official 237:f3da66175598 337 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 338 hsmbus->PreviousState = HAL_SMBUS_STATE_RESET;
mbed_official 237:f3da66175598 339 hsmbus->State = HAL_SMBUS_STATE_RESET;
mbed_official 237:f3da66175598 340
mbed_official 237:f3da66175598 341 /* Release Lock */
mbed_official 237:f3da66175598 342 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 343
mbed_official 237:f3da66175598 344 return HAL_OK;
mbed_official 237:f3da66175598 345 }
mbed_official 237:f3da66175598 346
mbed_official 237:f3da66175598 347 /**
mbed_official 237:f3da66175598 348 * @brief SMBUS MSP Init.
mbed_official 237:f3da66175598 349 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 350 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 351 * @retval None
mbed_official 237:f3da66175598 352 */
mbed_official 237:f3da66175598 353 __weak void HAL_SMBUS_MspInit(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 354 {
mbed_official 237:f3da66175598 355 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 356 the HAL_SMBUS_MspInit could be implemented in the user file
mbed_official 237:f3da66175598 357 */
mbed_official 237:f3da66175598 358 }
mbed_official 237:f3da66175598 359
mbed_official 237:f3da66175598 360 /**
mbed_official 237:f3da66175598 361 * @brief SMBUS MSP DeInit
mbed_official 237:f3da66175598 362 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 363 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 364 * @retval None
mbed_official 237:f3da66175598 365 */
mbed_official 237:f3da66175598 366 __weak void HAL_SMBUS_MspDeInit(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 367 {
mbed_official 237:f3da66175598 368 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 369 the HAL_SMBUS_MspDeInit could be implemented in the user file
mbed_official 237:f3da66175598 370 */
mbed_official 237:f3da66175598 371 }
mbed_official 237:f3da66175598 372
mbed_official 237:f3da66175598 373 /**
mbed_official 237:f3da66175598 374 * @}
mbed_official 237:f3da66175598 375 */
mbed_official 237:f3da66175598 376
mbed_official 237:f3da66175598 377 /** @defgroup HAL_SMBUS_Group2 IO operation functions
mbed_official 237:f3da66175598 378 * @brief Data transfers functions
mbed_official 237:f3da66175598 379 *
mbed_official 237:f3da66175598 380 @verbatim
mbed_official 237:f3da66175598 381 ===============================================================================
mbed_official 237:f3da66175598 382 ##### IO operation functions #####
mbed_official 237:f3da66175598 383 ===============================================================================
mbed_official 237:f3da66175598 384 [..]
mbed_official 237:f3da66175598 385 This subsection provides a set of functions allowing to manage the SMBUS data
mbed_official 237:f3da66175598 386 transfers.
mbed_official 237:f3da66175598 387
mbed_official 237:f3da66175598 388 (#) Blocking mode function to check if device is ready for usage is :
mbed_official 237:f3da66175598 389 (++) HAL_SMBUS_IsDeviceReady()
mbed_official 237:f3da66175598 390
mbed_official 237:f3da66175598 391 (#) There is only one mode of transfer:
mbed_official 237:f3da66175598 392 (++) No-Blocking mode : The communication is performed using Interrupts.
mbed_official 237:f3da66175598 393 These functions return the status of the transfer startup.
mbed_official 237:f3da66175598 394 The end of the data processing will be indicated through the
mbed_official 237:f3da66175598 395 dedicated SMBUS IRQ when using Interrupt mode.
mbed_official 237:f3da66175598 396
mbed_official 237:f3da66175598 397 (#) No-Blocking mode functions with Interrupt are :
mbed_official 237:f3da66175598 398 (++) HAL_SMBUS_Master_Transmit_IT()
mbed_official 237:f3da66175598 399 (++) HAL_SMBUS_Master_Receive_IT()
mbed_official 237:f3da66175598 400 (++) HAL_SMBUS_Slave_Transmit_IT()
mbed_official 237:f3da66175598 401 (++) HAL_SMBUS_Slave_Receive_IT()
mbed_official 237:f3da66175598 402 (++) HAL_SMBUS_Slave_Listen_IT() or alias HAL_SMBUS_EnableListen_IT()
mbed_official 237:f3da66175598 403 (++) HAL_SMBUS_DisableListen_IT()
mbed_official 237:f3da66175598 404 (++) HAL_SMBUS_EnableAlert_IT()
mbed_official 237:f3da66175598 405 (++) HAL_SMBUS_DisableAlert_IT()
mbed_official 237:f3da66175598 406
mbed_official 237:f3da66175598 407 (#) A set of Transfer Complete Callbacks are provided in No_Blocking mode:
mbed_official 237:f3da66175598 408 (++) HAL_SMBUS_MasterTxCpltCallback()
mbed_official 237:f3da66175598 409 (++) HAL_SMBUS_MasterRxCpltCallback()
mbed_official 237:f3da66175598 410 (++) HAL_SMBUS_SlaveTxCpltCallback()
mbed_official 237:f3da66175598 411 (++) HAL_SMBUS_SlaveRxCpltCallback()
mbed_official 237:f3da66175598 412 (++) HAL_SMBUS_SlaveAddrCallback() or alias HAL_SMBUS_AddrCallback()
mbed_official 237:f3da66175598 413 (++) HAL_SMBUS_SlaveListenCpltCallback() or alias HAL_SMBUS_ListenCpltCallback()
mbed_official 237:f3da66175598 414 (++) HAL_SMBUS_ErrorCallback()
mbed_official 237:f3da66175598 415
mbed_official 237:f3da66175598 416 @endverbatim
mbed_official 237:f3da66175598 417 * @{
mbed_official 237:f3da66175598 418 */
mbed_official 237:f3da66175598 419
mbed_official 237:f3da66175598 420 /**
mbed_official 237:f3da66175598 421 * @brief Transmit in master/host SMBUS mode an amount of data in no-blocking mode with Interrupt
mbed_official 237:f3da66175598 422 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 423 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 424 * @param DevAddress: Target device address
mbed_official 237:f3da66175598 425 * @param pData: Pointer to data buffer
mbed_official 237:f3da66175598 426 * @param Size: Amount of data to be sent
mbed_official 237:f3da66175598 427 * @param XferOptions: Options of Transfer, value of @ref SMBUS_XferOptions_definition
mbed_official 237:f3da66175598 428 * @retval HAL status
mbed_official 237:f3da66175598 429 */
mbed_official 237:f3da66175598 430 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 431 {
mbed_official 237:f3da66175598 432 /* Check the parameters */
mbed_official 237:f3da66175598 433 assert_param(IS_SMBUS_TRANSFER_OPTIONS_REQUEST(XferOptions));
mbed_official 237:f3da66175598 434
mbed_official 237:f3da66175598 435 if(hsmbus->State == HAL_SMBUS_STATE_READY)
mbed_official 237:f3da66175598 436 {
mbed_official 237:f3da66175598 437 /* Process Locked */
mbed_official 237:f3da66175598 438 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 439
mbed_official 237:f3da66175598 440 hsmbus->State = HAL_SMBUS_STATE_MASTER_BUSY_TX;
mbed_official 237:f3da66175598 441 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 442 /* Prepare transfer parameters */
mbed_official 237:f3da66175598 443 hsmbus->pBuffPtr = pData;
mbed_official 237:f3da66175598 444 hsmbus->XferCount = Size;
mbed_official 237:f3da66175598 445 hsmbus->XferOptions = XferOptions;
mbed_official 237:f3da66175598 446
mbed_official 237:f3da66175598 447 /* In case of Quick command, remove autoend mode */
mbed_official 237:f3da66175598 448 /* Manage the stop generation by software */
mbed_official 237:f3da66175598 449 if(hsmbus->pBuffPtr == NULL)
mbed_official 237:f3da66175598 450 {
mbed_official 237:f3da66175598 451 hsmbus->XferOptions &= ~SMBUS_AUTOEND_MODE;
mbed_official 237:f3da66175598 452 }
mbed_official 237:f3da66175598 453
mbed_official 237:f3da66175598 454 if(Size > MAX_NBYTE_SIZE)
mbed_official 237:f3da66175598 455 {
mbed_official 237:f3da66175598 456 hsmbus->XferSize = MAX_NBYTE_SIZE;
mbed_official 237:f3da66175598 457 }
mbed_official 237:f3da66175598 458 else
mbed_official 237:f3da66175598 459 {
mbed_official 237:f3da66175598 460 hsmbus->XferSize = Size;
mbed_official 237:f3da66175598 461 }
mbed_official 237:f3da66175598 462
mbed_official 237:f3da66175598 463 /* Send Slave Address */
mbed_official 237:f3da66175598 464 /* Set NBYTES to write and reload if size > MAX_NBYTE_SIZE and generate RESTART */
mbed_official 237:f3da66175598 465 if( (hsmbus->XferSize == MAX_NBYTE_SIZE) && (hsmbus->XferSize < hsmbus->XferCount) )
mbed_official 237:f3da66175598 466 {
mbed_official 237:f3da66175598 467 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE), SMBUS_GENERATE_START_WRITE);
mbed_official 237:f3da66175598 468 }
mbed_official 237:f3da66175598 469 else
mbed_official 237:f3da66175598 470 {
mbed_official 237:f3da66175598 471 /* If transfer direction not change, do not generate Restart Condition */
mbed_official 237:f3da66175598 472 /* Mean Previous state is same as current state */
mbed_official 237:f3da66175598 473 if(hsmbus->PreviousState == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 474 {
mbed_official 237:f3da66175598 475 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 476 }
mbed_official 237:f3da66175598 477 /* Else transfer direction change, so generate Restart with new transfer direction */
mbed_official 237:f3da66175598 478 else
mbed_official 237:f3da66175598 479 {
mbed_official 237:f3da66175598 480 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_GENERATE_START_WRITE);
mbed_official 237:f3da66175598 481 }
mbed_official 237:f3da66175598 482
mbed_official 237:f3da66175598 483 /* 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 484 /* PEC byte is automatically sent by HW block, no need to manage it in Transmit process */
mbed_official 237:f3da66175598 485 if(__HAL_SMBUS_GET_PEC_MODE(hsmbus) != RESET)
mbed_official 237:f3da66175598 486 {
mbed_official 237:f3da66175598 487 hsmbus->XferSize--;
mbed_official 237:f3da66175598 488 hsmbus->XferCount--;
mbed_official 237:f3da66175598 489 }
mbed_official 237:f3da66175598 490 }
mbed_official 237:f3da66175598 491
mbed_official 237:f3da66175598 492 /* Process Unlocked */
mbed_official 237:f3da66175598 493 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 494
mbed_official 237:f3da66175598 495 /* Note : The SMBUS interrupts must be enabled after unlocking current process
mbed_official 237:f3da66175598 496 to avoid the risk of SMBUS interrupt handle execution before current
mbed_official 237:f3da66175598 497 process unlock */
mbed_official 237:f3da66175598 498 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_TX);
mbed_official 237:f3da66175598 499
mbed_official 237:f3da66175598 500 return HAL_OK;
mbed_official 237:f3da66175598 501 }
mbed_official 237:f3da66175598 502 else
mbed_official 237:f3da66175598 503 {
mbed_official 237:f3da66175598 504 return HAL_BUSY;
mbed_official 237:f3da66175598 505 }
mbed_official 237:f3da66175598 506 }
mbed_official 237:f3da66175598 507
mbed_official 237:f3da66175598 508 /**
mbed_official 237:f3da66175598 509 * @brief Receive in master/host SMBUS mode an amount of data in no-blocking mode with Interrupt
mbed_official 237:f3da66175598 510 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 511 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 512 * @param DevAddress: Target device address
mbed_official 237:f3da66175598 513 * @param pData: Pointer to data buffer
mbed_official 237:f3da66175598 514 * @param Size: Amount of data to be sent
mbed_official 237:f3da66175598 515 * @param XferOptions: Options of Transfer, value of @ref SMBUS_XferOptions_definition
mbed_official 237:f3da66175598 516 * @retval HAL status
mbed_official 237:f3da66175598 517 */
mbed_official 237:f3da66175598 518 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 519 {
mbed_official 237:f3da66175598 520 /* Check the parameters */
mbed_official 237:f3da66175598 521 assert_param(IS_SMBUS_TRANSFER_OPTIONS_REQUEST(XferOptions));
mbed_official 237:f3da66175598 522
mbed_official 237:f3da66175598 523 if(hsmbus->State == HAL_SMBUS_STATE_READY)
mbed_official 237:f3da66175598 524 {
mbed_official 237:f3da66175598 525 /* Process Locked */
mbed_official 237:f3da66175598 526 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 527
mbed_official 237:f3da66175598 528 hsmbus->State = HAL_SMBUS_STATE_MASTER_BUSY_RX;
mbed_official 237:f3da66175598 529 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 530
mbed_official 237:f3da66175598 531 /* Prepare transfer parameters */
mbed_official 237:f3da66175598 532 hsmbus->pBuffPtr = pData;
mbed_official 237:f3da66175598 533 hsmbus->XferCount = Size;
mbed_official 237:f3da66175598 534 hsmbus->XferOptions = XferOptions;
mbed_official 237:f3da66175598 535
mbed_official 237:f3da66175598 536 /* In case of Quick command, remove autoend mode */
mbed_official 237:f3da66175598 537 /* Manage the stop generation by software */
mbed_official 237:f3da66175598 538 if(hsmbus->pBuffPtr == NULL)
mbed_official 237:f3da66175598 539 {
mbed_official 237:f3da66175598 540 hsmbus->XferOptions &= ~SMBUS_AUTOEND_MODE;
mbed_official 237:f3da66175598 541 }
mbed_official 237:f3da66175598 542
mbed_official 237:f3da66175598 543 if(Size > MAX_NBYTE_SIZE)
mbed_official 237:f3da66175598 544 {
mbed_official 237:f3da66175598 545 hsmbus->XferSize = MAX_NBYTE_SIZE;
mbed_official 237:f3da66175598 546 }
mbed_official 237:f3da66175598 547 else
mbed_official 237:f3da66175598 548 {
mbed_official 237:f3da66175598 549 hsmbus->XferSize = Size;
mbed_official 237:f3da66175598 550 }
mbed_official 237:f3da66175598 551
mbed_official 237:f3da66175598 552 /* Send Slave Address */
mbed_official 237:f3da66175598 553 /* Set NBYTES to write and reload if size > MAX_NBYTE_SIZE and generate RESTART */
mbed_official 237:f3da66175598 554 if( (hsmbus->XferSize == MAX_NBYTE_SIZE) && (hsmbus->XferSize < hsmbus->XferCount) )
mbed_official 237:f3da66175598 555 {
mbed_official 237:f3da66175598 556 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE), SMBUS_GENERATE_START_READ);
mbed_official 237:f3da66175598 557 }
mbed_official 237:f3da66175598 558 else
mbed_official 237:f3da66175598 559 {
mbed_official 237:f3da66175598 560 /* If transfer direction not change, do not generate Restart Condition */
mbed_official 237:f3da66175598 561 /* Mean Previous state is same as current state */
mbed_official 237:f3da66175598 562 if(hsmbus->PreviousState == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 563 {
mbed_official 237:f3da66175598 564 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 565 }
mbed_official 237:f3da66175598 566 /* Else transfer direction change, so generate Restart with new transfer direction */
mbed_official 237:f3da66175598 567 else
mbed_official 237:f3da66175598 568 {
mbed_official 237:f3da66175598 569 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_GENERATE_START_READ);
mbed_official 237:f3da66175598 570 }
mbed_official 237:f3da66175598 571 }
mbed_official 237:f3da66175598 572
mbed_official 237:f3da66175598 573 /* Process Unlocked */
mbed_official 237:f3da66175598 574 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 575
mbed_official 237:f3da66175598 576 /* Note : The SMBUS interrupts must be enabled after unlocking current process
mbed_official 237:f3da66175598 577 to avoid the risk of SMBUS interrupt handle execution before current
mbed_official 237:f3da66175598 578 process unlock */
mbed_official 237:f3da66175598 579 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_RX);
mbed_official 237:f3da66175598 580
mbed_official 237:f3da66175598 581 return HAL_OK;
mbed_official 237:f3da66175598 582 }
mbed_official 237:f3da66175598 583 else
mbed_official 237:f3da66175598 584 {
mbed_official 237:f3da66175598 585 return HAL_BUSY;
mbed_official 237:f3da66175598 586 }
mbed_official 237:f3da66175598 587 }
mbed_official 237:f3da66175598 588
mbed_official 237:f3da66175598 589 /**
mbed_official 237:f3da66175598 590 * @brief Abort a master/host SMBUS process commnunication with Interrupt
mbed_official 237:f3da66175598 591 * @note : This abort can be called only if state is ready
mbed_official 237:f3da66175598 592 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 593 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 594 * @param DevAddress: Target device address
mbed_official 237:f3da66175598 595 * @retval HAL status
mbed_official 237:f3da66175598 596 */
mbed_official 237:f3da66175598 597 HAL_StatusTypeDef HAL_SMBUS_Master_Abort_IT(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress)
mbed_official 237:f3da66175598 598 {
mbed_official 237:f3da66175598 599 if(hsmbus->State == HAL_SMBUS_STATE_READY)
mbed_official 237:f3da66175598 600 {
mbed_official 237:f3da66175598 601 /* Process Locked */
mbed_official 237:f3da66175598 602 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 603
mbed_official 237:f3da66175598 604 /* Keep the same state as previous */
mbed_official 237:f3da66175598 605 /* to perform as well the call of the corresponding end of transfer callback */
mbed_official 237:f3da66175598 606 if(hsmbus->PreviousState == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 607 {
mbed_official 237:f3da66175598 608 hsmbus->State = HAL_SMBUS_STATE_MASTER_BUSY_TX;
mbed_official 237:f3da66175598 609 }
mbed_official 237:f3da66175598 610 else if(hsmbus->PreviousState == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 611 {
mbed_official 237:f3da66175598 612 hsmbus->State = HAL_SMBUS_STATE_MASTER_BUSY_RX;
mbed_official 237:f3da66175598 613 }
mbed_official 237:f3da66175598 614 else
mbed_official 237:f3da66175598 615 {
mbed_official 237:f3da66175598 616 /* Wrong usage of abort function */
mbed_official 237:f3da66175598 617 /* This function should be used only in case of abort monitored by master device */
mbed_official 237:f3da66175598 618 return HAL_ERROR;
mbed_official 237:f3da66175598 619 }
mbed_official 237:f3da66175598 620 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 621
mbed_official 237:f3da66175598 622 /* Set NBYTES to 1 to generate a dummy read on SMBUS peripheral */
mbed_official 237:f3da66175598 623 /* Set AUTOEND mode, this will generate a NACK then STOP condition to abort the current transfer */
mbed_official 237:f3da66175598 624 SMBUS_TransferConfig(hsmbus, DevAddress, 1, SMBUS_AUTOEND_MODE, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 625
mbed_official 237:f3da66175598 626 /* Process Unlocked */
mbed_official 237:f3da66175598 627 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 628
mbed_official 237:f3da66175598 629 /* Note : The SMBUS interrupts must be enabled after unlocking current process
mbed_official 237:f3da66175598 630 to avoid the risk of SMBUS interrupt handle execution before current
mbed_official 237:f3da66175598 631 process unlock */
mbed_official 237:f3da66175598 632 if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 633 {
mbed_official 237:f3da66175598 634 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_TX);
mbed_official 237:f3da66175598 635 }
mbed_official 237:f3da66175598 636 else if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 637 {
mbed_official 237:f3da66175598 638 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_RX);
mbed_official 237:f3da66175598 639 }
mbed_official 237:f3da66175598 640
mbed_official 237:f3da66175598 641 return HAL_OK;
mbed_official 237:f3da66175598 642 }
mbed_official 237:f3da66175598 643 else
mbed_official 237:f3da66175598 644 {
mbed_official 237:f3da66175598 645 return HAL_BUSY;
mbed_official 237:f3da66175598 646 }
mbed_official 237:f3da66175598 647 }
mbed_official 237:f3da66175598 648
mbed_official 237:f3da66175598 649 /**
mbed_official 237:f3da66175598 650 * @brief Transmit in slave/device SMBUS mode an amount of data in no-blocking mode with Interrupt
mbed_official 237:f3da66175598 651 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 652 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 653 * @param pData: Pointer to data buffer
mbed_official 237:f3da66175598 654 * @param Size: Amount of data to be sent
mbed_official 237:f3da66175598 655 * @param XferOptions: Options of Transfer, value of @ref SMBUS_XferOptions_definition
mbed_official 237:f3da66175598 656 * @retval HAL status
mbed_official 237:f3da66175598 657 */
mbed_official 237:f3da66175598 658 HAL_StatusTypeDef HAL_SMBUS_Slave_Transmit_IT(SMBUS_HandleTypeDef *hsmbus, uint8_t *pData, uint16_t Size, uint32_t XferOptions)
mbed_official 237:f3da66175598 659 {
mbed_official 237:f3da66175598 660 /* Check the parameters */
mbed_official 237:f3da66175598 661 assert_param(IS_SMBUS_TRANSFER_OPTIONS_REQUEST(XferOptions));
mbed_official 237:f3da66175598 662
mbed_official 237:f3da66175598 663 if(hsmbus->State == HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 664 {
mbed_official 237:f3da66175598 665 if((pData == NULL) || (Size == 0))
mbed_official 237:f3da66175598 666 {
mbed_official 237:f3da66175598 667 return HAL_ERROR;
mbed_official 237:f3da66175598 668 }
mbed_official 237:f3da66175598 669
mbed_official 237:f3da66175598 670 /* Disable Interrupts, to prevent preemption during treatment in case of multicall */
mbed_official 237:f3da66175598 671 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ADDR | SMBUS_IT_TX);
mbed_official 237:f3da66175598 672
mbed_official 237:f3da66175598 673 /* Process Locked */
mbed_official 237:f3da66175598 674 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 675
mbed_official 237:f3da66175598 676 hsmbus->State |= HAL_SMBUS_STATE_SLAVE_BUSY_TX;
mbed_official 237:f3da66175598 677 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 678
mbed_official 237:f3da66175598 679 /* Enable Address Acknowledge */
mbed_official 237:f3da66175598 680 hsmbus->Instance->CR2 &= ~I2C_CR2_NACK;
mbed_official 237:f3da66175598 681
mbed_official 237:f3da66175598 682 /* Prepare transfer parameters */
mbed_official 237:f3da66175598 683 hsmbus->pBuffPtr = pData;
mbed_official 237:f3da66175598 684 hsmbus->XferSize = Size;
mbed_official 237:f3da66175598 685 hsmbus->XferCount = Size;
mbed_official 237:f3da66175598 686 hsmbus->XferOptions = XferOptions;
mbed_official 237:f3da66175598 687
mbed_official 237:f3da66175598 688 if(Size > MAX_NBYTE_SIZE)
mbed_official 237:f3da66175598 689 {
mbed_official 237:f3da66175598 690 hsmbus->XferSize = MAX_NBYTE_SIZE;
mbed_official 237:f3da66175598 691 }
mbed_official 237:f3da66175598 692 else
mbed_official 237:f3da66175598 693 {
mbed_official 237:f3da66175598 694 hsmbus->XferSize = Size;
mbed_official 237:f3da66175598 695 }
mbed_official 237:f3da66175598 696
mbed_official 237:f3da66175598 697 /* Set NBYTES to write and reload if size > MAX_NBYTE_SIZE and generate RESTART */
mbed_official 237:f3da66175598 698 if( (hsmbus->XferSize == MAX_NBYTE_SIZE) && (hsmbus->XferSize < hsmbus->XferCount) )
mbed_official 237:f3da66175598 699 {
mbed_official 237:f3da66175598 700 SMBUS_TransferConfig(hsmbus,0,hsmbus->XferSize, SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE), SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 701 }
mbed_official 237:f3da66175598 702 else
mbed_official 237:f3da66175598 703 {
mbed_official 237:f3da66175598 704 /* Set NBYTE to transmit */
mbed_official 237:f3da66175598 705 SMBUS_TransferConfig(hsmbus,0,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 706
mbed_official 237:f3da66175598 707 /* If PEC mode is enable, size to transmit should be Size-1 byte, corresponding to PEC byte */
mbed_official 237:f3da66175598 708 /* PEC byte is automatically sent by HW block, no need to manage it in Transmit process */
mbed_official 237:f3da66175598 709 if(__HAL_SMBUS_GET_PEC_MODE(hsmbus) != RESET)
mbed_official 237:f3da66175598 710 {
mbed_official 237:f3da66175598 711 hsmbus->XferSize--;
mbed_official 237:f3da66175598 712 hsmbus->XferCount--;
mbed_official 237:f3da66175598 713 }
mbed_official 237:f3da66175598 714 }
mbed_official 237:f3da66175598 715
mbed_official 237:f3da66175598 716 /* Clear ADDR flag after prepare the transfer parameters */
mbed_official 237:f3da66175598 717 /* This action will generate an acknowledge to the HOST */
mbed_official 237:f3da66175598 718 __HAL_SMBUS_CLEAR_FLAG(hsmbus,SMBUS_FLAG_ADDR);
mbed_official 237:f3da66175598 719
mbed_official 237:f3da66175598 720 /* Process Unlocked */
mbed_official 237:f3da66175598 721 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 722
mbed_official 237:f3da66175598 723 /* Note : The SMBUS interrupts must be enabled after unlocking current process
mbed_official 237:f3da66175598 724 to avoid the risk of SMBUS interrupt handle execution before current
mbed_official 237:f3da66175598 725 process unlock */
mbed_official 237:f3da66175598 726 /* REnable ADDR interrupt */
mbed_official 237:f3da66175598 727 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_TX | SMBUS_IT_ADDR);
mbed_official 237:f3da66175598 728
mbed_official 237:f3da66175598 729 return HAL_OK;
mbed_official 237:f3da66175598 730 }
mbed_official 237:f3da66175598 731 else
mbed_official 237:f3da66175598 732 {
mbed_official 237:f3da66175598 733 return HAL_ERROR;
mbed_official 237:f3da66175598 734 }
mbed_official 237:f3da66175598 735 }
mbed_official 237:f3da66175598 736
mbed_official 237:f3da66175598 737 /**
mbed_official 237:f3da66175598 738 * @brief Receive in slave/device SMBUS mode an amount of data in no-blocking mode with Interrupt
mbed_official 237:f3da66175598 739 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 740 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 741 * @param pData: Pointer to data buffer
mbed_official 237:f3da66175598 742 * @param Size: Amount of data to be sent
mbed_official 237:f3da66175598 743 * @param XferOptions: Options of Transfer, value of @ref SMBUS_XferOptions_definition
mbed_official 237:f3da66175598 744 * @retval HAL status
mbed_official 237:f3da66175598 745 */
mbed_official 237:f3da66175598 746 HAL_StatusTypeDef HAL_SMBUS_Slave_Receive_IT(SMBUS_HandleTypeDef *hsmbus, uint8_t *pData, uint16_t Size, uint32_t XferOptions)
mbed_official 237:f3da66175598 747 {
mbed_official 237:f3da66175598 748 /* Check the parameters */
mbed_official 237:f3da66175598 749 assert_param(IS_SMBUS_TRANSFER_OPTIONS_REQUEST(XferOptions));
mbed_official 237:f3da66175598 750
mbed_official 237:f3da66175598 751 if(hsmbus->State == HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 752 {
mbed_official 237:f3da66175598 753 if((pData == NULL) || (Size == 0))
mbed_official 237:f3da66175598 754 {
mbed_official 237:f3da66175598 755 return HAL_ERROR;
mbed_official 237:f3da66175598 756 }
mbed_official 237:f3da66175598 757
mbed_official 237:f3da66175598 758 /* Disable Interrupts, to prevent preemption during treatment in case of multicall */
mbed_official 237:f3da66175598 759 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ADDR | SMBUS_IT_RX);
mbed_official 237:f3da66175598 760
mbed_official 237:f3da66175598 761 /* Process Locked */
mbed_official 237:f3da66175598 762 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 763
mbed_official 237:f3da66175598 764 hsmbus->State |= HAL_SMBUS_STATE_SLAVE_BUSY_RX;
mbed_official 237:f3da66175598 765 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 766
mbed_official 237:f3da66175598 767 /* Enable Address Acknowledge */
mbed_official 237:f3da66175598 768 hsmbus->Instance->CR2 &= ~I2C_CR2_NACK;
mbed_official 237:f3da66175598 769
mbed_official 237:f3da66175598 770 /* Prepare transfer parameters */
mbed_official 237:f3da66175598 771 hsmbus->pBuffPtr = pData;
mbed_official 237:f3da66175598 772 hsmbus->XferSize = Size;
mbed_official 237:f3da66175598 773 hsmbus->XferCount = Size;
mbed_official 237:f3da66175598 774 hsmbus->XferOptions = XferOptions;
mbed_official 237:f3da66175598 775
mbed_official 237:f3da66175598 776 /* Set NBYTE to receive */
mbed_official 237:f3da66175598 777 /* If XferSize equal "1", or XferSize equal "2" with PEC requested (mean 1 data byte + 1 PEC byte */
mbed_official 237:f3da66175598 778 /* no need to set RELOAD bit mode, a ACK will be automatically generated in that case */
mbed_official 237:f3da66175598 779 /* else need to set RELOAD bit mode to generate an automatic ACK at each byte Received */
mbed_official 237:f3da66175598 780 /* This RELOAD bit will be reset for last BYTE to be receive in SMBUS_Slave_ISR */
mbed_official 237:f3da66175598 781 if((hsmbus->XferSize == 1) || ((hsmbus->XferSize == 2) && (__HAL_SMBUS_GET_PEC_MODE(hsmbus) != RESET)))
mbed_official 237:f3da66175598 782 {
mbed_official 237:f3da66175598 783 SMBUS_TransferConfig(hsmbus,0,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 784 }
mbed_official 237:f3da66175598 785 else
mbed_official 237:f3da66175598 786 {
mbed_official 237:f3da66175598 787 SMBUS_TransferConfig(hsmbus,0, 1, hsmbus->XferOptions | SMBUS_RELOAD_MODE, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 788 }
mbed_official 237:f3da66175598 789
mbed_official 237:f3da66175598 790 /* Clear ADDR flag after prepare the transfer parameters */
mbed_official 237:f3da66175598 791 /* This action will generate an acknowledge to the HOST */
mbed_official 237:f3da66175598 792 __HAL_SMBUS_CLEAR_FLAG(hsmbus,SMBUS_FLAG_ADDR);
mbed_official 237:f3da66175598 793
mbed_official 237:f3da66175598 794 /* Process Unlocked */
mbed_official 237:f3da66175598 795 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 796
mbed_official 237:f3da66175598 797 /* Note : The SMBUS interrupts must be enabled after unlocking current process
mbed_official 237:f3da66175598 798 to avoid the risk of SMBUS interrupt handle execution before current
mbed_official 237:f3da66175598 799 process unlock */
mbed_official 237:f3da66175598 800 /* REnable ADDR interrupt */
mbed_official 237:f3da66175598 801 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_RX | SMBUS_IT_ADDR);
mbed_official 237:f3da66175598 802
mbed_official 237:f3da66175598 803 return HAL_OK;
mbed_official 237:f3da66175598 804 }
mbed_official 237:f3da66175598 805 else
mbed_official 237:f3da66175598 806 {
mbed_official 237:f3da66175598 807 return HAL_ERROR;
mbed_official 237:f3da66175598 808 }
mbed_official 237:f3da66175598 809 }
mbed_official 237:f3da66175598 810
mbed_official 237:f3da66175598 811 /**
mbed_official 237:f3da66175598 812 * @brief This function enable the Address listen mode
mbed_official 237:f3da66175598 813 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 814 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 815 * @retval HAL status
mbed_official 237:f3da66175598 816 */
mbed_official 237:f3da66175598 817 HAL_StatusTypeDef HAL_SMBUS_Slave_Listen_IT(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 818 {
mbed_official 237:f3da66175598 819 hsmbus->State = HAL_SMBUS_STATE_LISTEN;
mbed_official 237:f3da66175598 820
mbed_official 237:f3da66175598 821 /* Enable the Address Match interrupt */
mbed_official 237:f3da66175598 822 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_ADDR);
mbed_official 237:f3da66175598 823
mbed_official 237:f3da66175598 824 return HAL_OK;
mbed_official 237:f3da66175598 825 }
mbed_official 237:f3da66175598 826
mbed_official 237:f3da66175598 827 /**
mbed_official 237:f3da66175598 828 * @brief This function disable the Address listen mode
mbed_official 237:f3da66175598 829 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 830 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 831 * @retval HAL status
mbed_official 237:f3da66175598 832 */
mbed_official 237:f3da66175598 833 HAL_StatusTypeDef HAL_SMBUS_DisableListen_IT(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 834 {
mbed_official 237:f3da66175598 835 /* Disable Address listen mode only if a transfer is not ongoing */
mbed_official 237:f3da66175598 836 if(hsmbus->State == HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 837 {
mbed_official 237:f3da66175598 838 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 839
mbed_official 237:f3da66175598 840 /* Disable the Address Match interrupt */
mbed_official 237:f3da66175598 841 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ADDR);
mbed_official 237:f3da66175598 842
mbed_official 237:f3da66175598 843 return HAL_OK;
mbed_official 237:f3da66175598 844 }
mbed_official 237:f3da66175598 845 else
mbed_official 237:f3da66175598 846 {
mbed_official 237:f3da66175598 847 return HAL_BUSY;
mbed_official 237:f3da66175598 848 }
mbed_official 237:f3da66175598 849 }
mbed_official 237:f3da66175598 850
mbed_official 237:f3da66175598 851 /**
mbed_official 237:f3da66175598 852 * @brief This function enable the SMBUS alert mode.
mbed_official 237:f3da66175598 853 * @param hsmbus : pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 854 * the configuration information for the specified SMBUSx peripheral.
mbed_official 237:f3da66175598 855 * @retval HAL status
mbed_official 237:f3da66175598 856 */
mbed_official 237:f3da66175598 857 HAL_StatusTypeDef HAL_SMBUS_EnableAlert_IT(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 858 {
mbed_official 237:f3da66175598 859 /* Enable SMBus alert */
mbed_official 237:f3da66175598 860 hsmbus->Instance->CR1 |= I2C_CR1_ALERTEN;
mbed_official 237:f3da66175598 861
mbed_official 237:f3da66175598 862 /* Clear ALERT flag */
mbed_official 237:f3da66175598 863 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_ALERT);
mbed_official 237:f3da66175598 864
mbed_official 237:f3da66175598 865 /* Enable Alert Interrupt */
mbed_official 237:f3da66175598 866 SMBUS_Enable_IRQ(hsmbus, SMBUS_IT_ALERT);
mbed_official 237:f3da66175598 867
mbed_official 237:f3da66175598 868 return HAL_OK;
mbed_official 237:f3da66175598 869 }
mbed_official 237:f3da66175598 870 /**
mbed_official 237:f3da66175598 871 * @brief This function disable the SMBUS alert mode.
mbed_official 237:f3da66175598 872 * @param hsmbus : pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 873 * the configuration information for the specified SMBUSx peripheral.
mbed_official 237:f3da66175598 874 * @retval HAL status
mbed_official 237:f3da66175598 875 */
mbed_official 237:f3da66175598 876 HAL_StatusTypeDef HAL_SMBUS_DisableAlert_IT(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 877 {
mbed_official 237:f3da66175598 878 /* Enable SMBus alert */
mbed_official 237:f3da66175598 879 hsmbus->Instance->CR1 &= ~I2C_CR1_ALERTEN;
mbed_official 237:f3da66175598 880
mbed_official 237:f3da66175598 881 /* Disable Alert Interrupt */
mbed_official 237:f3da66175598 882 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ALERT);
mbed_official 237:f3da66175598 883
mbed_official 237:f3da66175598 884 return HAL_OK;
mbed_official 237:f3da66175598 885 }
mbed_official 237:f3da66175598 886 /**
mbed_official 237:f3da66175598 887 * @brief Checks if target device is ready for communication.
mbed_official 237:f3da66175598 888 * @note This function is used with Memory devices
mbed_official 237:f3da66175598 889 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 890 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 891 * @param DevAddress: Target device address
mbed_official 237:f3da66175598 892 * @param Trials: Number of trials
mbed_official 237:f3da66175598 893 * @param Timeout: Timeout duration
mbed_official 237:f3da66175598 894 * @retval HAL status
mbed_official 237:f3da66175598 895 */
mbed_official 237:f3da66175598 896 HAL_StatusTypeDef HAL_SMBUS_IsDeviceReady(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout)
mbed_official 237:f3da66175598 897 {
mbed_official 237:f3da66175598 898 uint32_t tickstart = 0;
mbed_official 237:f3da66175598 899
mbed_official 237:f3da66175598 900 __IO uint32_t SMBUS_Trials = 0;
mbed_official 237:f3da66175598 901
mbed_official 237:f3da66175598 902 if(hsmbus->State == HAL_SMBUS_STATE_READY)
mbed_official 237:f3da66175598 903 {
mbed_official 237:f3da66175598 904 if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_BUSY) != RESET)
mbed_official 237:f3da66175598 905 {
mbed_official 237:f3da66175598 906 return HAL_BUSY;
mbed_official 237:f3da66175598 907 }
mbed_official 237:f3da66175598 908
mbed_official 237:f3da66175598 909 /* Process Locked */
mbed_official 237:f3da66175598 910 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 911
mbed_official 237:f3da66175598 912 hsmbus->State = HAL_SMBUS_STATE_BUSY;
mbed_official 237:f3da66175598 913 hsmbus->ErrorCode = HAL_SMBUS_ERROR_NONE;
mbed_official 237:f3da66175598 914
mbed_official 237:f3da66175598 915 do
mbed_official 237:f3da66175598 916 {
mbed_official 237:f3da66175598 917 /* Generate Start */
mbed_official 237:f3da66175598 918 hsmbus->Instance->CR2 = __HAL_SMBUS_GENERATE_START(hsmbus->Init.AddressingMode,DevAddress);
mbed_official 237:f3da66175598 919
mbed_official 237:f3da66175598 920 /* No need to Check TC flag, with AUTOEND mode the stop is automatically generated */
mbed_official 237:f3da66175598 921 /* Wait until STOPF flag is set or a NACK flag is set*/
mbed_official 237:f3da66175598 922 tickstart = HAL_GetTick();
mbed_official 237:f3da66175598 923 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 924 {
mbed_official 237:f3da66175598 925 if(Timeout != HAL_MAX_DELAY)
mbed_official 237:f3da66175598 926 {
mbed_official 237:f3da66175598 927 if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
mbed_official 237:f3da66175598 928 {
mbed_official 237:f3da66175598 929 /* Device is ready */
mbed_official 237:f3da66175598 930 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 931
mbed_official 237:f3da66175598 932 /* Process Unlocked */
mbed_official 237:f3da66175598 933 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 934 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 935 }
mbed_official 237:f3da66175598 936 }
mbed_official 237:f3da66175598 937 }
mbed_official 237:f3da66175598 938
mbed_official 237:f3da66175598 939 /* Check if the NACKF flag has not been set */
mbed_official 237:f3da66175598 940 if (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_AF) == RESET)
mbed_official 237:f3da66175598 941 {
mbed_official 237:f3da66175598 942 /* Wait until STOPF flag is reset */
mbed_official 237:f3da66175598 943 if(SMBUS_WaitOnFlagUntilTimeout(hsmbus, SMBUS_FLAG_STOPF, RESET, Timeout) != HAL_OK)
mbed_official 237:f3da66175598 944 {
mbed_official 237:f3da66175598 945 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 946 }
mbed_official 237:f3da66175598 947
mbed_official 237:f3da66175598 948 /* Clear STOP Flag */
mbed_official 237:f3da66175598 949 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF);
mbed_official 237:f3da66175598 950
mbed_official 237:f3da66175598 951 /* Device is ready */
mbed_official 237:f3da66175598 952 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 953
mbed_official 237:f3da66175598 954 /* Process Unlocked */
mbed_official 237:f3da66175598 955 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 956
mbed_official 237:f3da66175598 957 return HAL_OK;
mbed_official 237:f3da66175598 958 }
mbed_official 237:f3da66175598 959 else
mbed_official 237:f3da66175598 960 {
mbed_official 237:f3da66175598 961 /* Wait until STOPF flag is reset */
mbed_official 237:f3da66175598 962 if(SMBUS_WaitOnFlagUntilTimeout(hsmbus, SMBUS_FLAG_STOPF, RESET, Timeout) != HAL_OK)
mbed_official 237:f3da66175598 963 {
mbed_official 237:f3da66175598 964 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 965 }
mbed_official 237:f3da66175598 966
mbed_official 237:f3da66175598 967 /* Clear NACK Flag */
mbed_official 237:f3da66175598 968 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_AF);
mbed_official 237:f3da66175598 969
mbed_official 237:f3da66175598 970 /* Clear STOP Flag, auto generated with autoend*/
mbed_official 237:f3da66175598 971 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF);
mbed_official 237:f3da66175598 972 }
mbed_official 237:f3da66175598 973
mbed_official 237:f3da66175598 974 /* Check if the maximum allowed number of trials has been reached */
mbed_official 237:f3da66175598 975 if (SMBUS_Trials++ == Trials)
mbed_official 237:f3da66175598 976 {
mbed_official 237:f3da66175598 977 /* Generate Stop */
mbed_official 237:f3da66175598 978 hsmbus->Instance->CR2 |= I2C_CR2_STOP;
mbed_official 237:f3da66175598 979
mbed_official 237:f3da66175598 980 /* Wait until STOPF flag is reset */
mbed_official 237:f3da66175598 981 if(SMBUS_WaitOnFlagUntilTimeout(hsmbus, SMBUS_FLAG_STOPF, RESET, Timeout) != HAL_OK)
mbed_official 237:f3da66175598 982 {
mbed_official 237:f3da66175598 983 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 984 }
mbed_official 237:f3da66175598 985
mbed_official 237:f3da66175598 986 /* Clear STOP Flag */
mbed_official 237:f3da66175598 987 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF);
mbed_official 237:f3da66175598 988 }
mbed_official 237:f3da66175598 989 }while(SMBUS_Trials < Trials);
mbed_official 237:f3da66175598 990
mbed_official 237:f3da66175598 991 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 992
mbed_official 237:f3da66175598 993 /* Process Unlocked */
mbed_official 237:f3da66175598 994 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 995
mbed_official 237:f3da66175598 996 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 997 }
mbed_official 237:f3da66175598 998 else
mbed_official 237:f3da66175598 999 {
mbed_official 237:f3da66175598 1000 return HAL_BUSY;
mbed_official 237:f3da66175598 1001 }
mbed_official 237:f3da66175598 1002 }
mbed_official 237:f3da66175598 1003
mbed_official 237:f3da66175598 1004 /**
mbed_official 237:f3da66175598 1005 * @brief This function handles SMBUS event interrupt request.
mbed_official 237:f3da66175598 1006 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1007 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1008 * @retval None
mbed_official 237:f3da66175598 1009 */
mbed_official 237:f3da66175598 1010 void HAL_SMBUS_EV_IRQHandler(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1011 {
mbed_official 237:f3da66175598 1012 uint32_t tmpisrvalue = 0;
mbed_official 237:f3da66175598 1013
mbed_official 237:f3da66175598 1014 /* Use a local variable to store the current ISR flags */
mbed_official 237:f3da66175598 1015 /* This action will avoid a wrong treatment due to ISR flags change during interrupt handler */
mbed_official 237:f3da66175598 1016 tmpisrvalue = __SMBUS_GET_ISR_REG(hsmbus);
mbed_official 237:f3da66175598 1017
mbed_official 237:f3da66175598 1018 /* SMBUS in mode Transmitter ---------------------------------------------------*/
mbed_official 237:f3da66175598 1019 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 1020 {
mbed_official 237:f3da66175598 1021 /* Slave mode selected */
mbed_official 237:f3da66175598 1022 if ((hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_TX) == HAL_SMBUS_STATE_SLAVE_BUSY_TX)
mbed_official 237:f3da66175598 1023 {
mbed_official 237:f3da66175598 1024 SMBUS_Slave_ISR(hsmbus);
mbed_official 237:f3da66175598 1025 }
mbed_official 237:f3da66175598 1026 /* Master mode selected */
mbed_official 237:f3da66175598 1027 else if((hsmbus->State & HAL_SMBUS_STATE_MASTER_BUSY_TX) == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 1028 {
mbed_official 237:f3da66175598 1029 SMBUS_Master_ISR(hsmbus);
mbed_official 237:f3da66175598 1030 }
mbed_official 237:f3da66175598 1031 }
mbed_official 237:f3da66175598 1032
mbed_official 237:f3da66175598 1033 /* SMBUS in mode Receiver ----------------------------------------------------*/
mbed_official 237:f3da66175598 1034 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 1035 {
mbed_official 237:f3da66175598 1036 /* Slave mode selected */
mbed_official 237:f3da66175598 1037 if ((hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_RX) == HAL_SMBUS_STATE_SLAVE_BUSY_RX)
mbed_official 237:f3da66175598 1038 {
mbed_official 237:f3da66175598 1039 SMBUS_Slave_ISR(hsmbus);
mbed_official 237:f3da66175598 1040 }
mbed_official 237:f3da66175598 1041 /* Master mode selected */
mbed_official 237:f3da66175598 1042 else if((hsmbus->State & HAL_SMBUS_STATE_MASTER_BUSY_RX) == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 1043 {
mbed_official 237:f3da66175598 1044 SMBUS_Master_ISR(hsmbus);
mbed_official 237:f3da66175598 1045 }
mbed_official 237:f3da66175598 1046 }
mbed_official 237:f3da66175598 1047
mbed_official 237:f3da66175598 1048 /* SMBUS in mode Listener Only --------------------------------------------------*/
mbed_official 237:f3da66175598 1049 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 1050 && ((__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 1051 {
mbed_official 237:f3da66175598 1052 if (hsmbus->State == HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 1053 {
mbed_official 237:f3da66175598 1054 SMBUS_Slave_ISR(hsmbus);
mbed_official 237:f3da66175598 1055 }
mbed_official 237:f3da66175598 1056 }
mbed_official 237:f3da66175598 1057 }
mbed_official 237:f3da66175598 1058
mbed_official 237:f3da66175598 1059 /**
mbed_official 237:f3da66175598 1060 * @brief This function handles SMBUS error interrupt request.
mbed_official 237:f3da66175598 1061 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1062 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1063 * @retval None
mbed_official 237:f3da66175598 1064 */
mbed_official 237:f3da66175598 1065 void HAL_SMBUS_ER_IRQHandler(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1066 {
mbed_official 237:f3da66175598 1067 /* SMBUS Bus error interrupt occurred ------------------------------------*/
mbed_official 237:f3da66175598 1068 if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_BERR) != RESET) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ERRI) != RESET))
mbed_official 237:f3da66175598 1069 {
mbed_official 237:f3da66175598 1070 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_BERR;
mbed_official 237:f3da66175598 1071
mbed_official 237:f3da66175598 1072 /* Clear BERR flag */
mbed_official 237:f3da66175598 1073 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_BERR);
mbed_official 237:f3da66175598 1074 }
mbed_official 237:f3da66175598 1075
mbed_official 237:f3da66175598 1076 /* SMBUS Over-Run/Under-Run interrupt occurred ----------------------------------------*/
mbed_official 237:f3da66175598 1077 if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_OVR) != RESET) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ERRI) != RESET))
mbed_official 237:f3da66175598 1078 {
mbed_official 237:f3da66175598 1079 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_OVR;
mbed_official 237:f3da66175598 1080
mbed_official 237:f3da66175598 1081 /* Clear OVR flag */
mbed_official 237:f3da66175598 1082 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_OVR);
mbed_official 237:f3da66175598 1083 }
mbed_official 237:f3da66175598 1084
mbed_official 237:f3da66175598 1085 /* SMBUS Arbitration Loss error interrupt occurred ------------------------------------*/
mbed_official 237:f3da66175598 1086 if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_ARLO) != RESET) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ERRI) != RESET))
mbed_official 237:f3da66175598 1087 {
mbed_official 237:f3da66175598 1088 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_ARLO;
mbed_official 237:f3da66175598 1089
mbed_official 237:f3da66175598 1090 /* Clear ARLO flag */
mbed_official 237:f3da66175598 1091 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_ARLO);
mbed_official 237:f3da66175598 1092 }
mbed_official 237:f3da66175598 1093
mbed_official 237:f3da66175598 1094 /* SMBUS Timeout error interrupt occurred ---------------------------------------------*/
mbed_official 237:f3da66175598 1095 if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TIMEOUT) != RESET) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ERRI) != RESET))
mbed_official 237:f3da66175598 1096 {
mbed_official 237:f3da66175598 1097 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_BUSTIMEOUT;
mbed_official 237:f3da66175598 1098
mbed_official 237:f3da66175598 1099 /* Clear TIMEOUT flag */
mbed_official 237:f3da66175598 1100 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_TIMEOUT);
mbed_official 237:f3da66175598 1101 }
mbed_official 237:f3da66175598 1102
mbed_official 237:f3da66175598 1103 /* SMBUS Alert error interrupt occurred -----------------------------------------------*/
mbed_official 237:f3da66175598 1104 if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_ALERT) != RESET) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ERRI) != RESET))
mbed_official 237:f3da66175598 1105 {
mbed_official 237:f3da66175598 1106 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_ALERT;
mbed_official 237:f3da66175598 1107
mbed_official 237:f3da66175598 1108 /* Clear ALERT flag */
mbed_official 237:f3da66175598 1109 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_ALERT);
mbed_official 237:f3da66175598 1110 }
mbed_official 237:f3da66175598 1111
mbed_official 237:f3da66175598 1112 /* SMBUS Packet Error Check error interrupt occurred ----------------------------------*/
mbed_official 237:f3da66175598 1113 if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_PECERR) != RESET) && (__HAL_SMBUS_GET_IT_SOURCE(hsmbus, SMBUS_IT_ERRI) != RESET))
mbed_official 237:f3da66175598 1114 {
mbed_official 237:f3da66175598 1115 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_PECERR;
mbed_official 237:f3da66175598 1116
mbed_official 237:f3da66175598 1117 /* Clear PEC error flag */
mbed_official 237:f3da66175598 1118 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_PECERR);
mbed_official 237:f3da66175598 1119 }
mbed_official 237:f3da66175598 1120
mbed_official 237:f3da66175598 1121 /* Call the Error Callback in case of Error detected */
mbed_official 237:f3da66175598 1122 if((hsmbus->ErrorCode != HAL_SMBUS_ERROR_NONE)&&(hsmbus->ErrorCode != HAL_SMBUS_ERROR_ACKF))
mbed_official 237:f3da66175598 1123 {
mbed_official 237:f3da66175598 1124 /* Do not Reset the the HAL state in case of ALERT error */
mbed_official 237:f3da66175598 1125 if((hsmbus->ErrorCode & HAL_SMBUS_ERROR_ALERT) != HAL_SMBUS_ERROR_ALERT)
mbed_official 237:f3da66175598 1126 {
mbed_official 237:f3da66175598 1127 /* Reset only HAL_SMBUS_STATE_SLAVE_BUSY_XX and HAL_SMBUS_STATE_MASTER_BUSY_XX */
mbed_official 237:f3da66175598 1128 /* keep HAL_SMBUS_STATE_LISTEN if set */
mbed_official 237:f3da66175598 1129 hsmbus->State &= ~((uint32_t)(HAL_SMBUS_STATE_MASTER_BUSY_RX | HAL_SMBUS_STATE_MASTER_BUSY_TX | HAL_SMBUS_STATE_SLAVE_BUSY_RX | HAL_SMBUS_STATE_SLAVE_BUSY_TX));
mbed_official 237:f3da66175598 1130 }
mbed_official 237:f3da66175598 1131
mbed_official 237:f3da66175598 1132 /* Call the Error callback to prevent upper layer */
mbed_official 237:f3da66175598 1133 HAL_SMBUS_ErrorCallback(hsmbus);
mbed_official 237:f3da66175598 1134 }
mbed_official 237:f3da66175598 1135 }
mbed_official 237:f3da66175598 1136
mbed_official 237:f3da66175598 1137 /**
mbed_official 237:f3da66175598 1138 * @brief Master Tx Transfer completed callbacks.
mbed_official 237:f3da66175598 1139 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1140 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1141 * @retval None
mbed_official 237:f3da66175598 1142 */
mbed_official 237:f3da66175598 1143 __weak void HAL_SMBUS_MasterTxCpltCallback(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1144 {
mbed_official 237:f3da66175598 1145 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1146 the HAL_SMBUS_TxCpltCallback could be implemented in the user file
mbed_official 237:f3da66175598 1147 */
mbed_official 237:f3da66175598 1148 }
mbed_official 237:f3da66175598 1149
mbed_official 237:f3da66175598 1150 /**
mbed_official 237:f3da66175598 1151 * @brief Master Rx Transfer completed callbacks.
mbed_official 237:f3da66175598 1152 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1153 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1154 * @retval None
mbed_official 237:f3da66175598 1155 */
mbed_official 237:f3da66175598 1156 __weak void HAL_SMBUS_MasterRxCpltCallback(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1157 {
mbed_official 237:f3da66175598 1158 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1159 the HAL_SMBUS_TxCpltCallback could be implemented in the user file
mbed_official 237:f3da66175598 1160 */
mbed_official 237:f3da66175598 1161 }
mbed_official 237:f3da66175598 1162
mbed_official 237:f3da66175598 1163 /** @brief Slave Tx Transfer completed callbacks.
mbed_official 237:f3da66175598 1164 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1165 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1166 * @retval None
mbed_official 237:f3da66175598 1167 */
mbed_official 237:f3da66175598 1168 __weak void HAL_SMBUS_SlaveTxCpltCallback(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1169 {
mbed_official 237:f3da66175598 1170 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1171 the HAL_SMBUS_TxCpltCallback could be implemented in the user file
mbed_official 237:f3da66175598 1172 */
mbed_official 237:f3da66175598 1173 }
mbed_official 237:f3da66175598 1174
mbed_official 237:f3da66175598 1175 /**
mbed_official 237:f3da66175598 1176 * @brief Slave Rx Transfer completed callbacks.
mbed_official 237:f3da66175598 1177 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1178 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1179 * @retval None
mbed_official 237:f3da66175598 1180 */
mbed_official 237:f3da66175598 1181 __weak void HAL_SMBUS_SlaveRxCpltCallback(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1182 {
mbed_official 237:f3da66175598 1183 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1184 the HAL_SMBUS_TxCpltCallback could be implemented in the user file
mbed_official 237:f3da66175598 1185 */
mbed_official 237:f3da66175598 1186 }
mbed_official 237:f3da66175598 1187
mbed_official 237:f3da66175598 1188 /**
mbed_official 237:f3da66175598 1189 * @brief Slave Address Match callbacks.
mbed_official 237:f3da66175598 1190 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1191 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1192 * @param TransferDirection: Master request Transfer Direction (Write/Read)
mbed_official 237:f3da66175598 1193 * @param AddrMatchCode: Address Match Code
mbed_official 237:f3da66175598 1194 * @retval None
mbed_official 237:f3da66175598 1195 */
mbed_official 237:f3da66175598 1196 __weak void HAL_SMBUS_SlaveAddrCallback(SMBUS_HandleTypeDef *hsmbus, uint8_t TransferDirection, uint16_t AddrMatchCode)
mbed_official 237:f3da66175598 1197 {
mbed_official 237:f3da66175598 1198 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1199 the HAL_SMBUS_SlaveAddrCallback could be implemented in the user file
mbed_official 237:f3da66175598 1200 */
mbed_official 237:f3da66175598 1201 }
mbed_official 237:f3da66175598 1202
mbed_official 237:f3da66175598 1203 /**
mbed_official 237:f3da66175598 1204 * @brief Listen Complete callbacks.
mbed_official 237:f3da66175598 1205 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1206 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1207 * @retval None
mbed_official 237:f3da66175598 1208 */
mbed_official 237:f3da66175598 1209 __weak void HAL_SMBUS_SlaveListenCpltCallback(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1210 {
mbed_official 237:f3da66175598 1211 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1212 the HAL_SMBUS_SlaveListenCpltCallback could be implemented in the user file
mbed_official 237:f3da66175598 1213 */
mbed_official 237:f3da66175598 1214 }
mbed_official 237:f3da66175598 1215
mbed_official 237:f3da66175598 1216 /**
mbed_official 237:f3da66175598 1217 * @brief SMBUS error callbacks.
mbed_official 237:f3da66175598 1218 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1219 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1220 * @retval None
mbed_official 237:f3da66175598 1221 */
mbed_official 237:f3da66175598 1222 __weak void HAL_SMBUS_ErrorCallback(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1223 {
mbed_official 237:f3da66175598 1224 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 1225 the HAL_SMBUS_ErrorCallback could be implemented in the user file
mbed_official 237:f3da66175598 1226 */
mbed_official 237:f3da66175598 1227 }
mbed_official 237:f3da66175598 1228
mbed_official 237:f3da66175598 1229 /**
mbed_official 237:f3da66175598 1230 * @}
mbed_official 237:f3da66175598 1231 */
mbed_official 237:f3da66175598 1232
mbed_official 237:f3da66175598 1233 /** @defgroup HAL_SMBUS_Group3 Peripheral State and Errors functions
mbed_official 237:f3da66175598 1234 * @brief Peripheral State and Errors functions
mbed_official 237:f3da66175598 1235 *
mbed_official 237:f3da66175598 1236 @verbatim
mbed_official 237:f3da66175598 1237 ===============================================================================
mbed_official 237:f3da66175598 1238 ##### Peripheral State and Errors functions #####
mbed_official 237:f3da66175598 1239 ===============================================================================
mbed_official 237:f3da66175598 1240 [..]
mbed_official 237:f3da66175598 1241 This subsection permit to get in run-time the status of the peripheral
mbed_official 237:f3da66175598 1242 and the data flow.
mbed_official 237:f3da66175598 1243
mbed_official 237:f3da66175598 1244 @endverbatim
mbed_official 237:f3da66175598 1245 * @{
mbed_official 237:f3da66175598 1246 */
mbed_official 237:f3da66175598 1247
mbed_official 237:f3da66175598 1248 /**
mbed_official 237:f3da66175598 1249 * @brief Returns the SMBUS state.
mbed_official 237:f3da66175598 1250 * @param hsmbus : SMBUS handle
mbed_official 237:f3da66175598 1251 * @retval HAL state
mbed_official 237:f3da66175598 1252 */
mbed_official 237:f3da66175598 1253 HAL_SMBUS_StateTypeDef HAL_SMBUS_GetState(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1254 {
mbed_official 237:f3da66175598 1255 return hsmbus->State;
mbed_official 237:f3da66175598 1256 }
mbed_official 237:f3da66175598 1257
mbed_official 237:f3da66175598 1258 /**
mbed_official 237:f3da66175598 1259 * @brief Return the SMBUS error code
mbed_official 237:f3da66175598 1260 * @param hsmbus : pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1261 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1262 * @retval SMBUS Error Code
mbed_official 237:f3da66175598 1263 */
mbed_official 237:f3da66175598 1264 uint32_t HAL_SMBUS_GetError(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1265 {
mbed_official 237:f3da66175598 1266 return hsmbus->ErrorCode;
mbed_official 237:f3da66175598 1267 }
mbed_official 237:f3da66175598 1268
mbed_official 237:f3da66175598 1269 /**
mbed_official 237:f3da66175598 1270 * @}
mbed_official 237:f3da66175598 1271 */
mbed_official 237:f3da66175598 1272
mbed_official 237:f3da66175598 1273 /**
mbed_official 237:f3da66175598 1274 * @brief Interrupt Sub-Routine which handle the Interrupt Flags Master Mode
mbed_official 237:f3da66175598 1275 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1276 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1277 * @retval HAL status
mbed_official 237:f3da66175598 1278 */
mbed_official 237:f3da66175598 1279 static HAL_StatusTypeDef SMBUS_Master_ISR(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1280 {
mbed_official 237:f3da66175598 1281 uint16_t DevAddress;
mbed_official 237:f3da66175598 1282
mbed_official 237:f3da66175598 1283 /* Process Locked */
mbed_official 237:f3da66175598 1284 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 1285
mbed_official 237:f3da66175598 1286 if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_AF) != RESET)
mbed_official 237:f3da66175598 1287 {
mbed_official 237:f3da66175598 1288 /* Clear NACK Flag */
mbed_official 237:f3da66175598 1289 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_AF);
mbed_official 237:f3da66175598 1290
mbed_official 237:f3da66175598 1291 /* Set corresponding Error Code */
mbed_official 237:f3da66175598 1292 /* No need to generate STOP, it is automatically done */
mbed_official 237:f3da66175598 1293 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_ACKF;
mbed_official 237:f3da66175598 1294
mbed_official 237:f3da66175598 1295 /* Process Unlocked */
mbed_official 237:f3da66175598 1296 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1297
mbed_official 237:f3da66175598 1298 /* Call the Error callback to prevent upper layer */
mbed_official 237:f3da66175598 1299 HAL_SMBUS_ErrorCallback(hsmbus);
mbed_official 237:f3da66175598 1300 }
mbed_official 237:f3da66175598 1301 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_STOPF) != RESET)
mbed_official 237:f3da66175598 1302 {
mbed_official 237:f3da66175598 1303
mbed_official 237:f3da66175598 1304 /* Call the corresponding callback to inform upper layer of End of Transfer */
mbed_official 237:f3da66175598 1305 if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 1306 {
mbed_official 237:f3da66175598 1307 /* Disable Interrupt */
mbed_official 237:f3da66175598 1308 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_TX);
mbed_official 237:f3da66175598 1309
mbed_official 237:f3da66175598 1310 /* Clear STOP Flag */
mbed_official 237:f3da66175598 1311 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF);
mbed_official 237:f3da66175598 1312
mbed_official 237:f3da66175598 1313 /* Clear Configuration Register 2 */
mbed_official 237:f3da66175598 1314 __HAL_SMBUS_RESET_CR2(hsmbus);
mbed_official 237:f3da66175598 1315
mbed_official 237:f3da66175598 1316 /* Flush remaining data in Fifo register in case of error occurs before TXEmpty */
mbed_official 237:f3da66175598 1317 /* Disable the selected SMBUS peripheral */
mbed_official 237:f3da66175598 1318 __HAL_SMBUS_DISABLE(hsmbus);
mbed_official 237:f3da66175598 1319
mbed_official 237:f3da66175598 1320 hsmbus->PreviousState = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1321 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1322
mbed_official 237:f3da66175598 1323 /* Process Unlocked */
mbed_official 237:f3da66175598 1324 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1325
mbed_official 237:f3da66175598 1326 /* REenable the selected SMBUS peripheral */
mbed_official 237:f3da66175598 1327 __HAL_SMBUS_ENABLE(hsmbus);
mbed_official 237:f3da66175598 1328
mbed_official 237:f3da66175598 1329 HAL_SMBUS_MasterTxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1330 }
mbed_official 237:f3da66175598 1331 else if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 1332 {
mbed_official 237:f3da66175598 1333 /* Disable Interrupt */
mbed_official 237:f3da66175598 1334 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX);
mbed_official 237:f3da66175598 1335
mbed_official 237:f3da66175598 1336 /* Clear STOP Flag */
mbed_official 237:f3da66175598 1337 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF);
mbed_official 237:f3da66175598 1338
mbed_official 237:f3da66175598 1339 /* Clear Configuration Register 2 */
mbed_official 237:f3da66175598 1340 __HAL_SMBUS_RESET_CR2(hsmbus);
mbed_official 237:f3da66175598 1341
mbed_official 237:f3da66175598 1342 hsmbus->PreviousState = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1343 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1344
mbed_official 237:f3da66175598 1345 /* Process Unlocked */
mbed_official 237:f3da66175598 1346 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1347
mbed_official 237:f3da66175598 1348 HAL_SMBUS_MasterRxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1349 }
mbed_official 237:f3da66175598 1350 }
mbed_official 237:f3da66175598 1351 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_RXNE) != RESET)
mbed_official 237:f3da66175598 1352 {
mbed_official 237:f3da66175598 1353 /* Read data from RXDR */
mbed_official 237:f3da66175598 1354 (*hsmbus->pBuffPtr++) = hsmbus->Instance->RXDR;
mbed_official 237:f3da66175598 1355 hsmbus->XferSize--;
mbed_official 237:f3da66175598 1356 hsmbus->XferCount--;
mbed_official 237:f3da66175598 1357 }
mbed_official 237:f3da66175598 1358 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TXIS) != RESET)
mbed_official 237:f3da66175598 1359 {
mbed_official 237:f3da66175598 1360 /* Write data to TXDR */
mbed_official 237:f3da66175598 1361 hsmbus->Instance->TXDR = (*hsmbus->pBuffPtr++);
mbed_official 237:f3da66175598 1362 hsmbus->XferSize--;
mbed_official 237:f3da66175598 1363 hsmbus->XferCount--;
mbed_official 237:f3da66175598 1364 }
mbed_official 237:f3da66175598 1365 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TCR) != RESET)
mbed_official 237:f3da66175598 1366 {
mbed_official 237:f3da66175598 1367 if((hsmbus->XferSize == 0)&&(hsmbus->XferCount!=0))
mbed_official 237:f3da66175598 1368 {
mbed_official 237:f3da66175598 1369 DevAddress = (hsmbus->Instance->CR2 & I2C_CR2_SADD);
mbed_official 237:f3da66175598 1370
mbed_official 237:f3da66175598 1371 if(hsmbus->XferCount > MAX_NBYTE_SIZE)
mbed_official 237:f3da66175598 1372 {
mbed_official 237:f3da66175598 1373 SMBUS_TransferConfig(hsmbus, DevAddress, MAX_NBYTE_SIZE, (SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE)), SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 1374 hsmbus->XferSize = MAX_NBYTE_SIZE;
mbed_official 237:f3da66175598 1375 }
mbed_official 237:f3da66175598 1376 else
mbed_official 237:f3da66175598 1377 {
mbed_official 237:f3da66175598 1378 hsmbus->XferSize = hsmbus->XferCount;
mbed_official 237:f3da66175598 1379 SMBUS_TransferConfig(hsmbus,DevAddress,hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 1380 /* If PEC mode is enable, size to transmit should be Size-1 byte, corresponding to PEC byte */
mbed_official 237:f3da66175598 1381 /* PEC byte is automatically sent by HW block, no need to manage it in Transmit process */
mbed_official 237:f3da66175598 1382 if(__HAL_SMBUS_GET_PEC_MODE(hsmbus) != RESET)
mbed_official 237:f3da66175598 1383 {
mbed_official 237:f3da66175598 1384 hsmbus->XferSize--;
mbed_official 237:f3da66175598 1385 hsmbus->XferCount--;
mbed_official 237:f3da66175598 1386 }
mbed_official 237:f3da66175598 1387 }
mbed_official 237:f3da66175598 1388 }
mbed_official 237:f3da66175598 1389 else if((hsmbus->XferSize == 0)&&(hsmbus->XferCount==0))
mbed_official 237:f3da66175598 1390 {
mbed_official 237:f3da66175598 1391 /* Call TxCpltCallback if no stop mode is set */
mbed_official 237:f3da66175598 1392 if(__HAL_SMBUS_GET_STOP_MODE(hsmbus) != SMBUS_AUTOEND_MODE)
mbed_official 237:f3da66175598 1393 {
mbed_official 237:f3da66175598 1394 /* Call the corresponding callback to inform upper layer of End of Transfer */
mbed_official 237:f3da66175598 1395 if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 1396 {
mbed_official 237:f3da66175598 1397 /* Disable Interrupt */
mbed_official 237:f3da66175598 1398 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_TX);
mbed_official 237:f3da66175598 1399 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1400 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1401
mbed_official 237:f3da66175598 1402 /* Process Unlocked */
mbed_official 237:f3da66175598 1403 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1404
mbed_official 237:f3da66175598 1405 HAL_SMBUS_MasterTxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1406 }
mbed_official 237:f3da66175598 1407 else if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 1408 {
mbed_official 237:f3da66175598 1409 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX);
mbed_official 237:f3da66175598 1410 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1411 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1412
mbed_official 237:f3da66175598 1413 /* Process Unlocked */
mbed_official 237:f3da66175598 1414 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1415
mbed_official 237:f3da66175598 1416 HAL_SMBUS_MasterRxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1417 }
mbed_official 237:f3da66175598 1418 }
mbed_official 237:f3da66175598 1419 }
mbed_official 237:f3da66175598 1420 }
mbed_official 237:f3da66175598 1421 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TC) != RESET)
mbed_official 237:f3da66175598 1422 {
mbed_official 237:f3da66175598 1423 if(hsmbus->XferCount == 0)
mbed_official 237:f3da66175598 1424 {
mbed_official 237:f3da66175598 1425 /* Specific use case for Quick command */
mbed_official 237:f3da66175598 1426 if(hsmbus->pBuffPtr == NULL)
mbed_official 237:f3da66175598 1427 {
mbed_official 237:f3da66175598 1428 /* Generate a Stop command */
mbed_official 237:f3da66175598 1429 hsmbus->Instance->CR2 |= I2C_CR2_STOP;
mbed_official 237:f3da66175598 1430 }
mbed_official 237:f3da66175598 1431 /* Call TxCpltCallback if no stop mode is set */
mbed_official 237:f3da66175598 1432 else if(__HAL_SMBUS_GET_STOP_MODE(hsmbus) != SMBUS_AUTOEND_MODE)
mbed_official 237:f3da66175598 1433 {
mbed_official 237:f3da66175598 1434 /* No Generate Stop, to permit restart mode */
mbed_official 237:f3da66175598 1435 /* The stop will be done at the end of transfer, when SMBUS_AUTOEND_MODE enable */
mbed_official 237:f3da66175598 1436
mbed_official 237:f3da66175598 1437 /* Call the corresponding callback to inform upper layer of End of Transfer */
mbed_official 237:f3da66175598 1438 if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_TX)
mbed_official 237:f3da66175598 1439 {
mbed_official 237:f3da66175598 1440 /* Disable Interrupt */
mbed_official 237:f3da66175598 1441 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_TX);
mbed_official 237:f3da66175598 1442 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1443 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1444
mbed_official 237:f3da66175598 1445 /* Process Unlocked */
mbed_official 237:f3da66175598 1446 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1447
mbed_official 237:f3da66175598 1448 HAL_SMBUS_MasterTxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1449 }
mbed_official 237:f3da66175598 1450 else if(hsmbus->State == HAL_SMBUS_STATE_MASTER_BUSY_RX)
mbed_official 237:f3da66175598 1451 {
mbed_official 237:f3da66175598 1452 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX);
mbed_official 237:f3da66175598 1453 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1454 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1455
mbed_official 237:f3da66175598 1456 /* Process Unlocked */
mbed_official 237:f3da66175598 1457 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1458
mbed_official 237:f3da66175598 1459 HAL_SMBUS_MasterRxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1460 }
mbed_official 237:f3da66175598 1461 }
mbed_official 237:f3da66175598 1462 }
mbed_official 237:f3da66175598 1463 }
mbed_official 237:f3da66175598 1464
mbed_official 237:f3da66175598 1465 /* Process Unlocked */
mbed_official 237:f3da66175598 1466 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1467
mbed_official 237:f3da66175598 1468 return HAL_OK;
mbed_official 237:f3da66175598 1469 }
mbed_official 237:f3da66175598 1470 /**
mbed_official 237:f3da66175598 1471 * @brief Interrupt Sub-Routine which handle the Interrupt Flags Slave Mode
mbed_official 237:f3da66175598 1472 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1473 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1474 * @retval HAL status
mbed_official 237:f3da66175598 1475 */
mbed_official 237:f3da66175598 1476 static HAL_StatusTypeDef SMBUS_Slave_ISR(SMBUS_HandleTypeDef *hsmbus)
mbed_official 237:f3da66175598 1477 {
mbed_official 237:f3da66175598 1478 uint8_t TransferDirection = 0;
mbed_official 237:f3da66175598 1479 uint16_t SlaveAddrCode = 0;
mbed_official 237:f3da66175598 1480
mbed_official 237:f3da66175598 1481 /* Process Locked */
mbed_official 237:f3da66175598 1482 __HAL_LOCK(hsmbus);
mbed_official 237:f3da66175598 1483
mbed_official 237:f3da66175598 1484 if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_AF) != RESET)
mbed_official 237:f3da66175598 1485 {
mbed_official 237:f3da66175598 1486 /* Check that SMBUS transfer finished */
mbed_official 237:f3da66175598 1487 /* if yes, normal usecase, a NACK is sent by the HOST when Transfer is finished */
mbed_official 237:f3da66175598 1488 /* Mean XferCount == 0*/
mbed_official 237:f3da66175598 1489 /* So clear Flag NACKF only */
mbed_official 237:f3da66175598 1490 if(hsmbus->XferCount == 0)
mbed_official 237:f3da66175598 1491 {
mbed_official 237:f3da66175598 1492 /* Clear NACK Flag */
mbed_official 237:f3da66175598 1493 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_AF);
mbed_official 237:f3da66175598 1494
mbed_official 237:f3da66175598 1495 /* Process Unlocked */
mbed_official 237:f3da66175598 1496 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1497 }
mbed_official 237:f3da66175598 1498 else
mbed_official 237:f3da66175598 1499 {
mbed_official 237:f3da66175598 1500 /* if no, error usecase, a Non-Acknowledge of last Data is generated by the HOST*/
mbed_official 237:f3da66175598 1501 /* Clear NACK Flag */
mbed_official 237:f3da66175598 1502 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_AF);
mbed_official 237:f3da66175598 1503
mbed_official 237:f3da66175598 1504 /* Set HAL State to "Idle" State, mean to LISTEN state */
mbed_official 237:f3da66175598 1505 /* So reset Slave Busy state */
mbed_official 237:f3da66175598 1506 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1507 hsmbus->State &= ~((uint32_t)HAL_SMBUS_STATE_SLAVE_BUSY_TX);
mbed_official 237:f3da66175598 1508 hsmbus->State &= ~((uint32_t)HAL_SMBUS_STATE_SLAVE_BUSY_RX);
mbed_official 237:f3da66175598 1509
mbed_official 237:f3da66175598 1510 /* Disable RX/TX Interrupts, keep only ADDR Interrupt */
mbed_official 237:f3da66175598 1511 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX | SMBUS_IT_TX);
mbed_official 237:f3da66175598 1512
mbed_official 237:f3da66175598 1513 /* Set ErrorCode corresponding to a Non-Acknowledge */
mbed_official 237:f3da66175598 1514 hsmbus->ErrorCode |= HAL_SMBUS_ERROR_ACKF;
mbed_official 237:f3da66175598 1515
mbed_official 237:f3da66175598 1516 /* Process Unlocked */
mbed_official 237:f3da66175598 1517 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1518
mbed_official 237:f3da66175598 1519 /* Call the Error callback to prevent upper layer */
mbed_official 237:f3da66175598 1520 HAL_SMBUS_ErrorCallback(hsmbus);
mbed_official 237:f3da66175598 1521 }
mbed_official 237:f3da66175598 1522 }
mbed_official 237:f3da66175598 1523 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_ADDR) != RESET)
mbed_official 237:f3da66175598 1524 {
mbed_official 237:f3da66175598 1525 TransferDirection = __HAL_SMBUS_GET_DIR(hsmbus);
mbed_official 237:f3da66175598 1526 SlaveAddrCode = __HAL_SMBUS_GET_ADDR_MATCH(hsmbus);
mbed_official 237:f3da66175598 1527
mbed_official 237:f3da66175598 1528 /* Disable ADDR interrupt to prevent multiple ADDRInterrupt*/
mbed_official 237:f3da66175598 1529 /* Other ADDRInterrupt will be treat in next Listen usecase */
mbed_official 237:f3da66175598 1530 __HAL_SMBUS_DISABLE_IT(hsmbus, SMBUS_IT_ADDRI);
mbed_official 237:f3da66175598 1531
mbed_official 237:f3da66175598 1532 /* Process Unlocked */
mbed_official 237:f3da66175598 1533 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1534
mbed_official 237:f3da66175598 1535 /* Call Slave Addr callback */
mbed_official 237:f3da66175598 1536 HAL_SMBUS_SlaveAddrCallback(hsmbus, TransferDirection, SlaveAddrCode);
mbed_official 237:f3da66175598 1537 }
mbed_official 237:f3da66175598 1538 else if((__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_RXNE) != RESET) || (__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TCR) != RESET))
mbed_official 237:f3da66175598 1539 {
mbed_official 237:f3da66175598 1540 if( (hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_RX) == HAL_SMBUS_STATE_SLAVE_BUSY_RX)
mbed_official 237:f3da66175598 1541 {
mbed_official 237:f3da66175598 1542 /* Read data from RXDR */
mbed_official 237:f3da66175598 1543 (*hsmbus->pBuffPtr++) = hsmbus->Instance->RXDR;
mbed_official 237:f3da66175598 1544 hsmbus->XferSize--;
mbed_official 237:f3da66175598 1545 hsmbus->XferCount--;
mbed_official 237:f3da66175598 1546
mbed_official 237:f3da66175598 1547 if(hsmbus->XferCount == 1)
mbed_official 237:f3da66175598 1548 {
mbed_official 237:f3da66175598 1549 /* Receive last Byte, can be PEC byte in case of PEC BYTE enabled */
mbed_official 237:f3da66175598 1550 /* or only the last Byte of Transfer */
mbed_official 237:f3da66175598 1551 /* So reset the RELOAD bit mode */
mbed_official 237:f3da66175598 1552 hsmbus->XferOptions &= ~SMBUS_RELOAD_MODE;
mbed_official 237:f3da66175598 1553 SMBUS_TransferConfig(hsmbus,0 ,1 , hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 1554 }
mbed_official 237:f3da66175598 1555 else if(hsmbus->XferCount == 0)
mbed_official 237:f3da66175598 1556 {
mbed_official 237:f3da66175598 1557 /* Last Byte is received, disable Interrupt */
mbed_official 237:f3da66175598 1558 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX);
mbed_official 237:f3da66175598 1559
mbed_official 237:f3da66175598 1560 /* Remove HAL_SMBUS_STATE_SLAVE_BUSY_RX, keep only HAL_SMBUS_STATE_LISTEN */
mbed_official 237:f3da66175598 1561 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1562 hsmbus->State &= ~((uint32_t)HAL_SMBUS_STATE_SLAVE_BUSY_RX);
mbed_official 237:f3da66175598 1563
mbed_official 237:f3da66175598 1564 /* Process Unlocked */
mbed_official 237:f3da66175598 1565 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1566
mbed_official 237:f3da66175598 1567 /* Call the Rx complete callback to inform upper layer of the end of receive process */
mbed_official 237:f3da66175598 1568 HAL_SMBUS_SlaveRxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1569 }
mbed_official 237:f3da66175598 1570 else
mbed_official 237:f3da66175598 1571 {
mbed_official 237:f3da66175598 1572 /* Set Reload for next Bytes */
mbed_official 237:f3da66175598 1573 SMBUS_TransferConfig(hsmbus,0, 1, SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE), SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 1574
mbed_official 237:f3da66175598 1575 /* Ack last Byte Read */
mbed_official 237:f3da66175598 1576 hsmbus->Instance->CR2 &= ~I2C_CR2_NACK;
mbed_official 237:f3da66175598 1577 }
mbed_official 237:f3da66175598 1578 }
mbed_official 237:f3da66175598 1579 else if( (hsmbus->State & HAL_SMBUS_STATE_SLAVE_BUSY_TX) == HAL_SMBUS_STATE_SLAVE_BUSY_TX)
mbed_official 237:f3da66175598 1580 {
mbed_official 237:f3da66175598 1581 if((hsmbus->XferSize == 0)&&(hsmbus->XferCount!=0))
mbed_official 237:f3da66175598 1582 {
mbed_official 237:f3da66175598 1583 if(hsmbus->XferCount > MAX_NBYTE_SIZE)
mbed_official 237:f3da66175598 1584 {
mbed_official 237:f3da66175598 1585 SMBUS_TransferConfig(hsmbus, 0, MAX_NBYTE_SIZE, (SMBUS_RELOAD_MODE | (hsmbus->XferOptions & SMBUS_SENDPEC_MODE)), SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 1586 hsmbus->XferSize = MAX_NBYTE_SIZE;
mbed_official 237:f3da66175598 1587 }
mbed_official 237:f3da66175598 1588 else
mbed_official 237:f3da66175598 1589 {
mbed_official 237:f3da66175598 1590 hsmbus->XferSize = hsmbus->XferCount;
mbed_official 237:f3da66175598 1591 SMBUS_TransferConfig(hsmbus, 0, hsmbus->XferSize, hsmbus->XferOptions, SMBUS_NO_STARTSTOP);
mbed_official 237:f3da66175598 1592 /* If PEC mode is enable, size to transmit should be Size-1 byte, corresponding to PEC byte */
mbed_official 237:f3da66175598 1593 /* PEC byte is automatically sent by HW block, no need to manage it in Transmit process */
mbed_official 237:f3da66175598 1594 if(__HAL_SMBUS_GET_PEC_MODE(hsmbus) != RESET)
mbed_official 237:f3da66175598 1595 {
mbed_official 237:f3da66175598 1596 hsmbus->XferSize--;
mbed_official 237:f3da66175598 1597 hsmbus->XferCount--;
mbed_official 237:f3da66175598 1598 }
mbed_official 237:f3da66175598 1599 }
mbed_official 237:f3da66175598 1600 }
mbed_official 237:f3da66175598 1601 }
mbed_official 237:f3da66175598 1602 }
mbed_official 237:f3da66175598 1603 else if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_TXIS) != RESET)
mbed_official 237:f3da66175598 1604 {
mbed_official 237:f3da66175598 1605 /* Write data to TXDR only if XferCount not reach "0" */
mbed_official 237:f3da66175598 1606 /* A TXIS flag can be set, during STOP treatment */
mbed_official 237:f3da66175598 1607 /* Check if all Datas have already been sent */
mbed_official 237:f3da66175598 1608 /* If it is the case, this last write in TXDR is not sent, correspond to a dummy TXIS event */
mbed_official 237:f3da66175598 1609 if(hsmbus->XferCount > 0)
mbed_official 237:f3da66175598 1610 {
mbed_official 237:f3da66175598 1611 /* Write data to TXDR */
mbed_official 237:f3da66175598 1612 hsmbus->Instance->TXDR = (*hsmbus->pBuffPtr++);
mbed_official 237:f3da66175598 1613 hsmbus->XferCount--;
mbed_official 237:f3da66175598 1614 hsmbus->XferSize--;
mbed_official 237:f3da66175598 1615 }
mbed_official 237:f3da66175598 1616
mbed_official 237:f3da66175598 1617 if(hsmbus->XferCount == 0)
mbed_official 237:f3da66175598 1618 {
mbed_official 237:f3da66175598 1619 /* Last Byte is Transmitted */
mbed_official 237:f3da66175598 1620 /* Remove HAL_SMBUS_STATE_SLAVE_BUSY_TX, keep only HAL_SMBUS_STATE_LISTEN */
mbed_official 237:f3da66175598 1621 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_TX);
mbed_official 237:f3da66175598 1622 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1623 hsmbus->State &= ~((uint32_t)HAL_SMBUS_STATE_SLAVE_BUSY_TX);
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 Tx complete callback to inform upper layer of the end of transmit process */
mbed_official 237:f3da66175598 1629 HAL_SMBUS_SlaveTxCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1630 }
mbed_official 237:f3da66175598 1631 }
mbed_official 237:f3da66175598 1632
mbed_official 237:f3da66175598 1633 /* Check if STOPF is set */
mbed_official 237:f3da66175598 1634 if(__HAL_SMBUS_GET_FLAG(hsmbus, SMBUS_FLAG_STOPF) != RESET)
mbed_official 237:f3da66175598 1635 {
mbed_official 237:f3da66175598 1636 if((hsmbus->State & HAL_SMBUS_STATE_LISTEN) == HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 1637 {
mbed_official 237:f3da66175598 1638 /* Disable RX and TX Interrupts */
mbed_official 237:f3da66175598 1639 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_RX | SMBUS_IT_TX);
mbed_official 237:f3da66175598 1640
mbed_official 237:f3da66175598 1641 /* Disable ADDR Interrupt */
mbed_official 237:f3da66175598 1642 SMBUS_Disable_IRQ(hsmbus, SMBUS_IT_ADDR);
mbed_official 237:f3da66175598 1643
mbed_official 237:f3da66175598 1644 /* Disable Address Acknowledge */
mbed_official 237:f3da66175598 1645 hsmbus->Instance->CR2 |= I2C_CR2_NACK;
mbed_official 237:f3da66175598 1646
mbed_official 237:f3da66175598 1647 /* Clear Configuration Register 2 */
mbed_official 237:f3da66175598 1648 __HAL_SMBUS_RESET_CR2(hsmbus);
mbed_official 237:f3da66175598 1649
mbed_official 237:f3da66175598 1650 /* Clear STOP Flag */
mbed_official 237:f3da66175598 1651 __HAL_SMBUS_CLEAR_FLAG(hsmbus, SMBUS_FLAG_STOPF);
mbed_official 237:f3da66175598 1652
mbed_official 237:f3da66175598 1653 /* Clear ADDR flag */
mbed_official 237:f3da66175598 1654 __HAL_SMBUS_CLEAR_FLAG(hsmbus,SMBUS_FLAG_ADDR);
mbed_official 237:f3da66175598 1655
mbed_official 237:f3da66175598 1656 hsmbus->XferOptions = 0;
mbed_official 237:f3da66175598 1657 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1658 hsmbus->State = HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1659
mbed_official 237:f3da66175598 1660 /* Process Unlocked */
mbed_official 237:f3da66175598 1661 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1662
mbed_official 237:f3da66175598 1663 /* Call the Listen Complete callback, to prevent upper layer of the end of Listen usecase */
mbed_official 237:f3da66175598 1664 HAL_SMBUS_SlaveListenCpltCallback(hsmbus);
mbed_official 237:f3da66175598 1665 }
mbed_official 237:f3da66175598 1666 }
mbed_official 237:f3da66175598 1667
mbed_official 237:f3da66175598 1668 /* Process Unlocked */
mbed_official 237:f3da66175598 1669 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1670
mbed_official 237:f3da66175598 1671 return HAL_OK;
mbed_official 237:f3da66175598 1672 }
mbed_official 237:f3da66175598 1673 /**
mbed_official 237:f3da66175598 1674 * @brief Manage the enabling of Interrupts
mbed_official 237:f3da66175598 1675 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1676 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1677 * @param InterruptRequest : Value of @ref SMBUS_Interrupt_configuration_definition.
mbed_official 237:f3da66175598 1678 * @retval HAL status
mbed_official 237:f3da66175598 1679 */
mbed_official 237:f3da66175598 1680 static HAL_StatusTypeDef SMBUS_Enable_IRQ(SMBUS_HandleTypeDef *hsmbus, uint16_t InterruptRequest)
mbed_official 237:f3da66175598 1681 {
mbed_official 237:f3da66175598 1682 uint32_t tmpisr = 0;
mbed_official 237:f3da66175598 1683
mbed_official 237:f3da66175598 1684 if((InterruptRequest & SMBUS_IT_ALERT) == SMBUS_IT_ALERT)
mbed_official 237:f3da66175598 1685 {
mbed_official 237:f3da66175598 1686 /* Enable ERR interrupt */
mbed_official 237:f3da66175598 1687 tmpisr |= SMBUS_IT_ERRI;
mbed_official 237:f3da66175598 1688 }
mbed_official 237:f3da66175598 1689
mbed_official 237:f3da66175598 1690 if((InterruptRequest & SMBUS_IT_ADDR) == SMBUS_IT_ADDR)
mbed_official 237:f3da66175598 1691 {
mbed_official 237:f3da66175598 1692 /* Enable ADDR, STOP interrupt */
mbed_official 237:f3da66175598 1693 tmpisr |= SMBUS_IT_ADDRI | SMBUS_IT_STOPI | SMBUS_IT_NACKI | SMBUS_IT_ERRI;
mbed_official 237:f3da66175598 1694 }
mbed_official 237:f3da66175598 1695
mbed_official 237:f3da66175598 1696 if((InterruptRequest & SMBUS_IT_TX) == SMBUS_IT_TX)
mbed_official 237:f3da66175598 1697 {
mbed_official 237:f3da66175598 1698 /* Enable ERR, TC, STOP, NACK, RXI interrupt */
mbed_official 237:f3da66175598 1699 tmpisr |= SMBUS_IT_ERRI | SMBUS_IT_TCI | SMBUS_IT_STOPI | SMBUS_IT_NACKI | SMBUS_IT_TXI;
mbed_official 237:f3da66175598 1700 }
mbed_official 237:f3da66175598 1701
mbed_official 237:f3da66175598 1702 if((InterruptRequest & SMBUS_IT_RX) == SMBUS_IT_RX)
mbed_official 237:f3da66175598 1703 {
mbed_official 237:f3da66175598 1704 /* Enable ERR, TC, STOP, NACK, TXI interrupt */
mbed_official 237:f3da66175598 1705 tmpisr |= SMBUS_IT_ERRI | SMBUS_IT_TCI | SMBUS_IT_STOPI | SMBUS_IT_NACKI | SMBUS_IT_RXI;
mbed_official 237:f3da66175598 1706 }
mbed_official 237:f3da66175598 1707
mbed_official 237:f3da66175598 1708 /* Enable interrupts only at the end */
mbed_official 237:f3da66175598 1709 /* to avoid the risk of SMBUS interrupt handle execution before */
mbed_official 237:f3da66175598 1710 /* all interrupts requested done */
mbed_official 237:f3da66175598 1711 __HAL_SMBUS_ENABLE_IT(hsmbus, tmpisr);
mbed_official 237:f3da66175598 1712
mbed_official 237:f3da66175598 1713 return HAL_OK;
mbed_official 237:f3da66175598 1714 }
mbed_official 237:f3da66175598 1715 /**
mbed_official 237:f3da66175598 1716 * @brief Manage the disabling of Interrupts
mbed_official 237:f3da66175598 1717 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1718 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1719 * @param InterruptRequest : Value of @ref SMBUS_Interrupt_configuration_definition.
mbed_official 237:f3da66175598 1720 * @retval HAL status
mbed_official 237:f3da66175598 1721 */
mbed_official 237:f3da66175598 1722 static HAL_StatusTypeDef SMBUS_Disable_IRQ(SMBUS_HandleTypeDef *hsmbus, uint16_t InterruptRequest)
mbed_official 237:f3da66175598 1723 {
mbed_official 237:f3da66175598 1724 uint32_t tmpisr = 0;
mbed_official 237:f3da66175598 1725
mbed_official 237:f3da66175598 1726 if( ((InterruptRequest & SMBUS_IT_ALERT) == SMBUS_IT_ALERT) && (hsmbus->State == HAL_SMBUS_STATE_READY) )
mbed_official 237:f3da66175598 1727 {
mbed_official 237:f3da66175598 1728 /* Disable ERR interrupt */
mbed_official 237:f3da66175598 1729 tmpisr |= SMBUS_IT_ERRI;
mbed_official 237:f3da66175598 1730 }
mbed_official 237:f3da66175598 1731
mbed_official 237:f3da66175598 1732 if((InterruptRequest & SMBUS_IT_TX) == SMBUS_IT_TX)
mbed_official 237:f3da66175598 1733 {
mbed_official 237:f3da66175598 1734 /* Disable TC, STOP, NACK, TXI interrupt */
mbed_official 237:f3da66175598 1735 tmpisr |= SMBUS_IT_TCI | SMBUS_IT_TXI;
mbed_official 237:f3da66175598 1736
mbed_official 237:f3da66175598 1737 if((__HAL_SMBUS_GET_ALERT_ENABLED(hsmbus) == RESET)
mbed_official 237:f3da66175598 1738 && ((hsmbus->State & HAL_SMBUS_STATE_LISTEN) != HAL_SMBUS_STATE_LISTEN))
mbed_official 237:f3da66175598 1739 {
mbed_official 237:f3da66175598 1740 /* Disable ERR interrupt */
mbed_official 237:f3da66175598 1741 tmpisr |= SMBUS_IT_ERRI;
mbed_official 237:f3da66175598 1742 }
mbed_official 237:f3da66175598 1743
mbed_official 237:f3da66175598 1744 if((hsmbus->State & HAL_SMBUS_STATE_LISTEN) != HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 1745 {
mbed_official 237:f3da66175598 1746 /* Disable STOPI, NACKI */
mbed_official 237:f3da66175598 1747 tmpisr |= SMBUS_IT_STOPI | SMBUS_IT_NACKI;
mbed_official 237:f3da66175598 1748 }
mbed_official 237:f3da66175598 1749 }
mbed_official 237:f3da66175598 1750
mbed_official 237:f3da66175598 1751 if((InterruptRequest & SMBUS_IT_RX) == SMBUS_IT_RX)
mbed_official 237:f3da66175598 1752 {
mbed_official 237:f3da66175598 1753 /* Disable TC, STOP, NACK, RXI interrupt */
mbed_official 237:f3da66175598 1754 tmpisr |= SMBUS_IT_TCI | SMBUS_IT_RXI;
mbed_official 237:f3da66175598 1755
mbed_official 237:f3da66175598 1756 if((__HAL_SMBUS_GET_ALERT_ENABLED(hsmbus) == RESET)
mbed_official 237:f3da66175598 1757 && ((hsmbus->State & HAL_SMBUS_STATE_LISTEN) != HAL_SMBUS_STATE_LISTEN))
mbed_official 237:f3da66175598 1758 {
mbed_official 237:f3da66175598 1759 /* Disable ERR interrupt */
mbed_official 237:f3da66175598 1760 tmpisr |= SMBUS_IT_ERRI;
mbed_official 237:f3da66175598 1761 }
mbed_official 237:f3da66175598 1762
mbed_official 237:f3da66175598 1763 if((hsmbus->State & HAL_SMBUS_STATE_LISTEN) != HAL_SMBUS_STATE_LISTEN)
mbed_official 237:f3da66175598 1764 {
mbed_official 237:f3da66175598 1765 /* Disable STOPI, NACKI */
mbed_official 237:f3da66175598 1766 tmpisr |= SMBUS_IT_STOPI | SMBUS_IT_NACKI;
mbed_official 237:f3da66175598 1767 }
mbed_official 237:f3da66175598 1768 }
mbed_official 237:f3da66175598 1769
mbed_official 237:f3da66175598 1770 if((InterruptRequest & SMBUS_IT_ADDR) == SMBUS_IT_ADDR)
mbed_official 237:f3da66175598 1771 {
mbed_official 237:f3da66175598 1772 /* Enable ADDR, STOP interrupt */
mbed_official 237:f3da66175598 1773 tmpisr |= SMBUS_IT_ADDRI | SMBUS_IT_STOPI | SMBUS_IT_NACKI;
mbed_official 237:f3da66175598 1774
mbed_official 237:f3da66175598 1775 if(__HAL_SMBUS_GET_ALERT_ENABLED(hsmbus) == RESET)
mbed_official 237:f3da66175598 1776 {
mbed_official 237:f3da66175598 1777 /* Disable ERR interrupt */
mbed_official 237:f3da66175598 1778 tmpisr |= SMBUS_IT_ERRI;
mbed_official 237:f3da66175598 1779 }
mbed_official 237:f3da66175598 1780 }
mbed_official 237:f3da66175598 1781
mbed_official 237:f3da66175598 1782 /* Disable interrupts only at the end */
mbed_official 237:f3da66175598 1783 /* to avoid a breaking situation like at "t" time */
mbed_official 237:f3da66175598 1784 /* all disable interrupts request are not done */
mbed_official 237:f3da66175598 1785 __HAL_SMBUS_DISABLE_IT(hsmbus, tmpisr);
mbed_official 237:f3da66175598 1786
mbed_official 237:f3da66175598 1787 return HAL_OK;
mbed_official 237:f3da66175598 1788 }
mbed_official 237:f3da66175598 1789 /**
mbed_official 237:f3da66175598 1790 * @brief This function handles SMBUS Communication Timeout.
mbed_official 237:f3da66175598 1791 * @param hsmbus : Pointer to a SMBUS_HandleTypeDef structure that contains
mbed_official 237:f3da66175598 1792 * the configuration information for the specified SMBUS.
mbed_official 237:f3da66175598 1793 * @param Flag: specifies the SMBUS flag to check.
mbed_official 237:f3da66175598 1794 * @param Status: The new Flag status (SET or RESET).
mbed_official 237:f3da66175598 1795 * @param Timeout: Timeout duration
mbed_official 237:f3da66175598 1796 * @retval HAL status
mbed_official 237:f3da66175598 1797 */
mbed_official 237:f3da66175598 1798 static HAL_StatusTypeDef SMBUS_WaitOnFlagUntilTimeout(SMBUS_HandleTypeDef *hsmbus, uint32_t Flag, FlagStatus Status, uint32_t Timeout)
mbed_official 237:f3da66175598 1799 {
mbed_official 237:f3da66175598 1800 uint32_t tickstart = HAL_GetTick();
mbed_official 237:f3da66175598 1801
mbed_official 237:f3da66175598 1802 /* Wait until flag is set */
mbed_official 237:f3da66175598 1803 if(Status == RESET)
mbed_official 237:f3da66175598 1804 {
mbed_official 237:f3da66175598 1805 while(__HAL_SMBUS_GET_FLAG(hsmbus, Flag) == RESET)
mbed_official 237:f3da66175598 1806 {
mbed_official 237:f3da66175598 1807 /* Check for the Timeout */
mbed_official 237:f3da66175598 1808 if(Timeout != HAL_MAX_DELAY)
mbed_official 237:f3da66175598 1809 {
mbed_official 237:f3da66175598 1810 if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
mbed_official 237:f3da66175598 1811 {
mbed_official 237:f3da66175598 1812 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1813 hsmbus->State= HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1814
mbed_official 237:f3da66175598 1815 /* Process Unlocked */
mbed_official 237:f3da66175598 1816 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1817
mbed_official 237:f3da66175598 1818 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 1819 }
mbed_official 237:f3da66175598 1820 }
mbed_official 237:f3da66175598 1821 }
mbed_official 237:f3da66175598 1822 }
mbed_official 237:f3da66175598 1823 else
mbed_official 237:f3da66175598 1824 {
mbed_official 237:f3da66175598 1825 while(__HAL_SMBUS_GET_FLAG(hsmbus, Flag) != RESET)
mbed_official 237:f3da66175598 1826 {
mbed_official 237:f3da66175598 1827 /* Check for the Timeout */
mbed_official 237:f3da66175598 1828 if(Timeout != HAL_MAX_DELAY)
mbed_official 237:f3da66175598 1829 {
mbed_official 237:f3da66175598 1830 if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
mbed_official 237:f3da66175598 1831 {
mbed_official 237:f3da66175598 1832 hsmbus->PreviousState = hsmbus->State;
mbed_official 237:f3da66175598 1833 hsmbus->State= HAL_SMBUS_STATE_READY;
mbed_official 237:f3da66175598 1834
mbed_official 237:f3da66175598 1835 /* Process Unlocked */
mbed_official 237:f3da66175598 1836 __HAL_UNLOCK(hsmbus);
mbed_official 237:f3da66175598 1837
mbed_official 237:f3da66175598 1838 return HAL_TIMEOUT;
mbed_official 237:f3da66175598 1839 }
mbed_official 237:f3da66175598 1840 }
mbed_official 237:f3da66175598 1841 }
mbed_official 237:f3da66175598 1842 }
mbed_official 237:f3da66175598 1843 return HAL_OK;
mbed_official 237:f3da66175598 1844 }
mbed_official 237:f3da66175598 1845
mbed_official 237:f3da66175598 1846 /**
mbed_official 237:f3da66175598 1847 * @brief Handles SMBUSx communication when starting transfer or during transfer (TC or TCR flag are set).
mbed_official 237:f3da66175598 1848 * @param hsmbus: SMBUS handle.
mbed_official 237:f3da66175598 1849 * @param DevAddress: specifies the slave address to be programmed.
mbed_official 237:f3da66175598 1850 * @param Size: specifies the number of bytes to be programmed.
mbed_official 237:f3da66175598 1851 * This parameter must be a value between 0 and 255.
mbed_official 237:f3da66175598 1852 * @param Mode: new state of the SMBUS START condition generation.
mbed_official 237:f3da66175598 1853 * This parameter can be one or a combination of the following values:
mbed_official 237:f3da66175598 1854 * @arg SMBUS_NO_MODE: No specific mode enabled.
mbed_official 237:f3da66175598 1855 * @arg SMBUS_RELOAD_MODE: Enable Reload mode.
mbed_official 237:f3da66175598 1856 * @arg SMBUS_AUTOEND_MODE: Enable Automatic end mode.
mbed_official 237:f3da66175598 1857 * @arg SMBUS_SOFTEND_MODE: Enable Software end mode and Reload mode.
mbed_official 237:f3da66175598 1858 * @param Request: new state of the SMBUS START condition generation.
mbed_official 237:f3da66175598 1859 * This parameter can be one of the following values:
mbed_official 237:f3da66175598 1860 * @arg SMBUS_NO_STARTSTOP: Don't Generate stop and start condition.
mbed_official 237:f3da66175598 1861 * @arg SMBUS_GENERATE_STOP: Generate stop condition (Size should be set to 0).
mbed_official 237:f3da66175598 1862 * @arg SMBUS_GENERATE_START_READ: Generate Restart for read request.
mbed_official 237:f3da66175598 1863 * @arg SMBUS_GENERATE_START_WRITE: Generate Restart for write request.
mbed_official 237:f3da66175598 1864 * @retval None
mbed_official 237:f3da66175598 1865 */
mbed_official 237:f3da66175598 1866 static void SMBUS_TransferConfig(SMBUS_HandleTypeDef *hsmbus, uint16_t DevAddress, uint8_t Size, uint32_t Mode, uint32_t Request)
mbed_official 237:f3da66175598 1867 {
mbed_official 237:f3da66175598 1868 uint32_t tmpreg = 0;
mbed_official 237:f3da66175598 1869
mbed_official 237:f3da66175598 1870 /* Check the parameters */
mbed_official 237:f3da66175598 1871 assert_param(IS_SMBUS_ALL_INSTANCE(hsmbus->Instance));
mbed_official 237:f3da66175598 1872 assert_param(IS_SMBUS_TRANSFER_MODE(Mode));
mbed_official 237:f3da66175598 1873 assert_param(IS_SMBUS_TRANSFER_REQUEST(Request));
mbed_official 237:f3da66175598 1874
mbed_official 237:f3da66175598 1875 /* Get the CR2 register value */
mbed_official 237:f3da66175598 1876 tmpreg = hsmbus->Instance->CR2;
mbed_official 237:f3da66175598 1877
mbed_official 237:f3da66175598 1878 /* clear tmpreg specific bits */
mbed_official 237:f3da66175598 1879 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 1880
mbed_official 237:f3da66175598 1881 /* update tmpreg */
mbed_official 237:f3da66175598 1882 tmpreg |= (uint32_t)(((uint32_t)DevAddress & I2C_CR2_SADD) | (((uint32_t)Size << 16 ) & I2C_CR2_NBYTES) | \
mbed_official 237:f3da66175598 1883 (uint32_t)Mode | (uint32_t)Request);
mbed_official 237:f3da66175598 1884
mbed_official 237:f3da66175598 1885 /* update CR2 register */
mbed_official 237:f3da66175598 1886 hsmbus->Instance->CR2 = tmpreg;
mbed_official 237:f3da66175598 1887 }
mbed_official 237:f3da66175598 1888
mbed_official 237:f3da66175598 1889 /**
mbed_official 237:f3da66175598 1890 * @}
mbed_official 237:f3da66175598 1891 */
mbed_official 237:f3da66175598 1892
mbed_official 237:f3da66175598 1893 #endif /* HAL_SMBUS_MODULE_ENABLED */
mbed_official 237:f3da66175598 1894 /**
mbed_official 237:f3da66175598 1895 * @}
mbed_official 237:f3da66175598 1896 */
mbed_official 237:f3da66175598 1897
mbed_official 237:f3da66175598 1898 /**
mbed_official 237:f3da66175598 1899 * @}
mbed_official 237:f3da66175598 1900 */
mbed_official 237:f3da66175598 1901
mbed_official 237:f3da66175598 1902 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/