/**
* @brief Enables the touch Panel interrupt.
* @param None
* @retval IOE_OK: if all initializations are OK. Other value if error.
*/
uint8_t IOE_TPITConfig(void)
{
/* Enable the Global interrupt */
IOE_GITCmd(ENABLE);
/* Enable the Global GPIO Interrupt */
IOE_GITConfig((uint8_t)(IOE_GIT_TOUCH | IOE_GIT_FTH | IOE_GIT_FOV), ENABLE);
/* Read the GPIO_IT_STA to clear all pending bits if any */
I2C_ReadDeviceRegister(IOE_REG_GPIO_INT_STA);
/* If all OK return IOE_OK */
return IOE_OK;
}
/**
* @brief Configures The selected interrupts on the IO Expanders.
* @param IOE_ITSRC_Source: the source of the interrupts. Could be one or a
* combination of the following parameters:
* @arg IOE_ITSRC_JOYSTICK: Joystick IO intputs.
* @arg IOE_ITSRC_TSC: Touch Screen interrupts.
* @arg IOE_ITSRC_INMEMS: MEMS interrupt lines.
* @retval IOE_OK: if all initializations are OK. Other value if error.
*/
uint8_t IOE_ITConfig(uint32_t IOE_ITSRC_Source)
{
/* Configure the Interrupt output pin to generate low level (INT_CTRL) */
IOE_ITOutConfig(Polarity_High, Type_Level);
/* Manage the Touch Screen Interrupts */
if (IOE_ITSRC_Source & IOE_ITSRC_TSC) {
/* Enable the Global interrupt */
IOE_GITCmd(IOE_1_ADDR, ENABLE);
/* Enable the Global GPIO Interrupt */
IOE_GITConfig(IOE_1_ADDR, (uint8_t)(IOE_GIT_TOUCH | IOE_GIT_FTH), ENABLE);
/* Read the GPIO_IT_STA to clear all pending bits if any */
I2C_ReadDeviceRegister(IOE_1_ADDR, IOE_REG_GPIO_INT_STA);
}
/* Configure the Interrupt line as EXTI source */
IOE_EXTI_Config();
/* If all OK return IOE_OK */
return IOE_OK;
}
/**
* @brief Configures The selected interrupts on the IO Expanders.
* @param IOE_ITSRC_Source: the source of the interrupts. Could be one or a
* combination of the following parameters:
* @arg IOE_ITSRC_JOYSTICK: Joystick IO interrupts.
* @arg IOE_ITSRC_TSC: Touch Screen interrupts.
* @arg IOE_ITSRC_INMEMS: MEMS interrupt lines.
* @retval IOE_OK: if all initializations are OK. Other value if error.
*/
uint8_t IOE_ITConfig(uint32_t IOE_ITSRC_Source)
{
/* Configure the Interrupt output pin to generate low level (INT_CTRL) */
IOE_ITOutConfig(Polarity_Low, Type_Level);
/* Manage the Joystick Interrupts */
if (IOE_ITSRC_Source & IOE_ITSRC_JOYSTICK)
{
/* Enable the Global interrupt */
IOE_GITCmd(IOE_2_ADDR, ENABLE);
/* Enable the Joystick pins to generate interrupt (GPIO_INT_EN) */
IOE_IOITConfig(IOE_2_ADDR, IOE_JOY_IT, ENABLE);
/* Enable the Global GPIO Interrupt */
IOE_GITConfig(IOE_2_ADDR, IOE_GIT_GPIO, ENABLE);
/* Read the GPIO_IT_STA to clear all pending bits if any */
I2C_ReadDeviceRegister(IOE_2_ADDR, IOE_REG_GPIO_INT_STA);
/* Enable the Joystick pins to generate interrupt */
IOE_IOITConfig(IOE_2_ADDR, IOE_JOY_IT, ENABLE);
/* Read the GPIO_IT_STA to clear all pending bits if any */
I2C_ReadDeviceRegister(IOE_2_ADDR, IOE_REG_GPIO_INT_STA);
}
/* Manage the MEMS Interrupts lines */
if (IOE_ITSRC_Source & IOE_ITSRC_INMEMS)
{
/* Enable the Global interrupt */
IOE_GITCmd(IOE_1_ADDR, ENABLE);
/* Enable the pins to generate interrupt (GPIO_INT_EN) */
IOE_IOITConfig(IOE_1_ADDR, IOE_INMEMS_IT, ENABLE);
/* Enable the Global GPIO Interrupt */
IOE_GITConfig(IOE_1_ADDR, IOE_GIT_GPIO, ENABLE);
/* Read the GPIO_IT_STA to clear all pending bits if any */
I2C_ReadDeviceRegister(IOE_1_ADDR, IOE_REG_GPIO_INT_STA);
/* Enable the pins to generate interrupt */
IOE_IOITConfig(IOE_1_ADDR, IOE_INMEMS_IT, ENABLE);
/* Read the GPIO_IT_STA to clear all pending bits if any */
I2C_ReadDeviceRegister(IOE_1_ADDR, IOE_REG_GPIO_INT_STA);
}
/* Manage the Touch Screen Interrupts */
if (IOE_ITSRC_Source & IOE_ITSRC_TSC)
{
/* Enable the Global interrupt */
IOE_GITCmd(IOE_1_ADDR, ENABLE);
/* Enable the Global GPIO Interrupt */
IOE_GITConfig(IOE_1_ADDR, (uint8_t)(IOE_GIT_TOUCH | IOE_GIT_FTH | IOE_GIT_FOV), ENABLE);
/* Read the GPIO_IT_STA to clear all pending bits if any */
I2C_ReadDeviceRegister(IOE_1_ADDR, IOE_REG_GPIO_INT_STA);
}
/* Configure the Interrupt line as EXTI source */
IOE_EXTI_Config();
/* If all OK return IOE_OK */
return IOE_OK;
}