/**
* @brief Initializes the SmartCard mode according to the specified
* parameters in the SMARTCARD_InitTypeDef and create the associated handle .
* @param hsc: pointer to a SMARTCARD_HandleTypeDef structure that contains
* the configuration information for SMARTCARD module.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_SMARTCARD_Init(SMARTCARD_HandleTypeDef *hsc)
{
/* Check the SMARTCARD handle allocation */
if(hsc == NULL)
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_SMARTCARD_INSTANCE(hsc->Instance));
assert_param(IS_SMARTCARD_NACK_STATE(hsc->Init.NACKState));
if(hsc->gState == HAL_SMARTCARD_STATE_RESET)
{
/* Allocate lock resource and initialize it */
hsc->Lock = HAL_UNLOCKED;
/* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */
HAL_SMARTCARD_MspInit(hsc);
}
hsc->gState = HAL_SMARTCARD_STATE_BUSY;
/* Set the Prescaler */
MODIFY_REG(hsc->Instance->GTPR, USART_GTPR_PSC, hsc->Init.Prescaler);
/* Set the Guard Time */
MODIFY_REG(hsc->Instance->GTPR, USART_GTPR_GT, ((hsc->Init.GuardTime)<<8));
/* Set the Smartcard Communication parameters */
SMARTCARD_SetConfig(hsc);
/* In SmartCard mode, the following bits must be kept cleared:
- LINEN bit in the USART_CR2 register
- HDSEL and IREN bits in the USART_CR3 register.*/
hsc->Instance->CR2 &= ~USART_CR2_LINEN;
hsc->Instance->CR3 &= ~(USART_CR3_IREN | USART_CR3_HDSEL);
/* Enable the SMARTCARD Parity Error Interrupt */
__HAL_SMARTCARD_ENABLE_IT(hsc, SMARTCARD_IT_PE);
/* Enable the SMARTCARD Framing Error Interrupt */
__HAL_SMARTCARD_ENABLE_IT(hsc, SMARTCARD_IT_ERR);
/* Enable the Peripheral */
__HAL_SMARTCARD_ENABLE(hsc);
/* Configure the Smartcard NACK state */
MODIFY_REG(hsc->Instance->CR3, USART_CR3_NACK, hsc->Init.NACKState);
/* Enable the SC mode by setting the SCEN bit in the CR3 register */
hsc->Instance->CR3 |= (USART_CR3_SCEN);
/* Initialize the SMARTCARD state*/
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE;
hsc->gState= HAL_SMARTCARD_STATE_READY;
hsc->RxState= HAL_SMARTCARD_STATE_READY;
return HAL_OK;
}
/**
* @brief Initializes the SMARTCARD mode according to the specified
* parameters in the SMARTCARD_InitTypeDef and creates the associated handle .
* @param hsc: SMARTCARD handle
* @retval HAL status
*/
HAL_StatusTypeDef HAL_SMARTCARD_Init(SMARTCARD_HandleTypeDef *hsc)
{
/* Check the SMARTCARD handle allocation */
if(hsc == NULL)
{
return HAL_ERROR;
}
/* Check the USART associated to the SmartCard */
assert_param(IS_SMARTCARD_INSTANCE(hsc->Instance));
if(hsc->State == HAL_SMARTCARD_STATE_RESET)
{
/* Allocate lock resource and initialize it */
hsc->Lock = HAL_UNLOCKED;
/* Init the low level hardware : GPIO, CLOCK, CORTEX */
HAL_SMARTCARD_MspInit(hsc);
}
hsc->State = HAL_SMARTCARD_STATE_BUSY;
/* Disable the Peripheral */
__HAL_SMARTCARD_DISABLE(hsc);
/* Set the SMARTCARD Communication parameters */
SMARTCARD_SetConfig(hsc);
if(hsc->AdvancedInit.AdvFeatureInit != SMARTCARD_ADVFEATURE_NO_INIT)
{
SMARTCARD_AdvFeatureConfig(hsc);
}
/* In SmartCard mode, the following bits must be kept cleared:
- LINEN in the USART_CR2 register,
- HDSEL and IREN bits in the USART_CR3 register.*/
hsc->Instance->CR2 &= ~(USART_CR2_LINEN);
hsc->Instance->CR3 &= ~(USART_CR3_HDSEL | USART_CR3_IREN);
/* set the USART in SMARTCARD mode */
hsc->Instance->CR3 |= USART_CR3_SCEN;
/* Enable the Peripheral */
__HAL_SMARTCARD_ENABLE(hsc);
/* TEACK and/or REACK to check before moving hsc->State to Ready */
return (SMARTCARD_CheckIdleState(hsc));
}
/**
* @brief Initializes the SmartCard mode according to the specified
* parameters in the SMARTCARD_HandleTypeDef and create the associated handle.
* @param hsc: Pointer to a SMARTCARD_HandleTypeDef structure that contains
* the configuration information for the specified SMARTCARD module.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_SMARTCARD_Init(SMARTCARD_HandleTypeDef *hsc)
{
/* Check the SMARTCARD handle allocation */
if(hsc == NULL)
{
return HAL_ERROR;
}
/* Check Wordlength, Parity and Stop bits parameters */
if ( (!(IS_SMARTCARD_WORD_LENGTH(hsc->Init.WordLength)))
||(!(IS_SMARTCARD_STOPBITS(hsc->Init.StopBits)))
||(!(IS_SMARTCARD_PARITY(hsc->Init.Parity))) )
{
return HAL_ERROR;
}
/* Check the parameters */
assert_param(IS_SMARTCARD_INSTANCE(hsc->Instance));
assert_param(IS_SMARTCARD_NACK_STATE(hsc->Init.NACKState));
assert_param(IS_SMARTCARD_PRESCALER(hsc->Init.Prescaler));
if(hsc->State == HAL_SMARTCARD_STATE_RESET)
{
/* Allocate lock resource and initialize it */
hsc->Lock = HAL_UNLOCKED;
/* Init the low level hardware */
HAL_SMARTCARD_MspInit(hsc);
}
hsc->State = HAL_SMARTCARD_STATE_BUSY;
/* Disable the Peripheral */
__HAL_SMARTCARD_DISABLE(hsc);
/* Set the Prescaler */
MODIFY_REG(hsc->Instance->GTPR, USART_GTPR_PSC, hsc->Init.Prescaler);
/* Set the Guard Time */
MODIFY_REG(hsc->Instance->GTPR, USART_GTPR_GT, ((hsc->Init.GuardTime)<<8));
/* Set the Smartcard Communication parameters */
SMARTCARD_SetConfig(hsc);
/* In SmartCard mode, the following bits must be kept cleared:
- LINEN bit in the USART_CR2 register
- HDSEL and IREN bits in the USART_CR3 register.*/
CLEAR_BIT(hsc->Instance->CR2, USART_CR2_LINEN);
CLEAR_BIT(hsc->Instance->CR3, (USART_CR3_IREN | USART_CR3_HDSEL));
/* Enable the Peripharal */
__HAL_SMARTCARD_ENABLE(hsc);
/* Configure the Smartcard NACK state */
MODIFY_REG(hsc->Instance->CR3, USART_CR3_NACK, hsc->Init.NACKState);
/* Enable the SC mode by setting the SCEN bit in the CR3 register */
SET_BIT(hsc->Instance->CR3, USART_CR3_SCEN);
/* Initialize the SMARTCARD state*/
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE;
hsc->State= HAL_SMARTCARD_STATE_READY;
return HAL_OK;
}