/*!
\brief set GPIO mode
\param[in] gpio_periph: GPIOx(x = A,B,C,F)
only one parameter can be selected which is shown as below:
\arg GPIOx(x = A,B,C,F)
\param[in] mode: gpio pin mode
\arg GPIO_MODE_INPUT: input mode
\arg GPIO_MODE_OUTPUT: output mode
\arg GPIO_MODE_AF: alternate function mode
\arg GPIO_MODE_ANALOG: analog mode
\param[in] pull_up_down: gpio pin with pull-up or pull-down resistor
\arg GPIO_PUPD_NONE: floating mode, no pull-up and pull-down resistors
\arg GPIO_PUPD_PULLUP: with pull-up resistor
\arg GPIO_PUPD_PULLDOWN:with pull-down resistor
\param[in] pin: GPIO pin
one or more parameters can be selected which are shown as below:
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_mode_set(uint32_t gpio_periph, uint32_t mode, uint32_t pull_up_down, uint32_t pin)
{
uint16_t i;
uint32_t ctl, pupd;
ctl = GPIO_CTL(gpio_periph);
pupd = GPIO_PUD(gpio_periph);
for(i = 0U;i < 16U;i++){
if((1U << i) & pin){
/* clear the specified pin mode bits */
ctl &= ~GPIO_MODE_MASK(i);
/* set the specified pin mode bits */
ctl |= GPIO_MODE_SET(i, mode);
/* clear the specified pin pupd bits */
pupd &= ~GPIO_PUPD_MASK(i);
/* set the specified pin pupd bits */
pupd |= GPIO_PUPD_SET(i, pull_up_down);
}
}
GPIO_CTL(gpio_periph) = ctl;
GPIO_PUD(gpio_periph) = pupd;
}
/*conf_data = 0~3*/
void GPIO_ModeSetup(kal_uint16 pin, kal_uint16 conf_dada)
{
kal_uint16 modeno;
kal_uint16 remainder;
modeno = pin/8;
remainder = pin % 8;
#if defined(MT6226)|| defined(MT6227)
if(pin>=56)/*special case */
{
DRV_WriteReg(GPIO_MODE8_CLR,(0x0003 << (remainder*2)));
DRV_WriteReg(GPIO_MODE8_SET,(conf_dada << (remainder*2)));
return;
}
#endif
DRV_WriteReg(GPIO_MODE_CLR(modeno),(0x0003 << (remainder*2)));
DRV_WriteReg(GPIO_MODE_SET(modeno),(conf_dada << (remainder*2)));
}
/*!
\brief set GPIO output mode
\param[in] port
\arg GPIOx(x = A,B,C,D,F)
\param[in] mode
\arg GPIO_MODE_INPUT: input mode
\arg GPIO_MODE_OUTPUT: output mode
\arg GPIO_MODE_AF: alternate function mode
\arg GPIO_MODE_ANALOG: analog mode
\param[in] pull_up_down
\arg GPIO_PUPD_NONE: without weak pull-up and pull-down resistors
\arg GPIO_PUPD_PULLUP: with weak pull-up resistors
\arg GPIO_PUPD_PULLDOWN:with weak pull-down resistors
\param[in] pin
\arg GPIO_PIN_x(x=0..15), GPIO_PIN_ALL
\param[out] none
\retval none
*/
void gpio_mode_set(uint32_t port, uint8_t mode, uint8_t pull_up_down,uint16_t pin)
{
uint16_t i;
uint32_t ctl, pupd;
ctl = GPIO_CTL(port);
pupd = GPIO_PUD(port);
for (i = 0; i < 16; i++){
if (!((1 << i) & pin)){
continue;
}
/* clear the specified pin mode bits */
ctl &= ~GPIO_MODE_MASK(i);
ctl |= GPIO_MODE_SET(i, mode);
/* clear the specified pin pupd bits */
pupd &= ~GPIO_PUPD_MASK(i);
pupd |= GPIO_PUPD_SET(i, pull_up_down);
}
GPIO_CTL(port) = ctl;
GPIO_PUD(port) = pupd;
}
// Set the direction, mode and pull-up for a set of GPIO pins on a given GPIO port
// input:
// GPIOx - pointer to a GPIO peripheral handle
// Mode - pin mode (one of GPIO_Mode_xx values)
// PUPD - pull-up configuration (one of GPIO_PUPD_xx values)
// Pins - set of pins (ORed combination of GPIO_Pin_X values)
void GPIO_set_mode(GPIO_TypeDef *GPIOx, GPIOMode_TypeDef Mode, GPIOPUPD_TypeDef PUPD, uint16_t Pins) {
uint16_t pin = 0;
uint32_t MODER = GPIOx->MODER;
uint32_t PUPDR = GPIOx->PUPDR;
// Set the configuration only for the pins mentioned in Pins parameter
while (pin < 16) {
if ((1 << pin) & Pins) {
// Pin mode
MODER &= ~GPIO_MODE_MSK(pin);
MODER |= GPIO_MODE_SET(pin, Mode);
// Pull-up configuration
PUPDR &= ~GPIO_PUPD_MSK(pin);
PUPDR |= GPIO_PUPD_SET(pin, PUPD);
}
pin++;
}
// Write new values of the mode and pull-up/pull-down control registers
GPIOx->MODER = MODER;
GPIOx->PUPDR = PUPDR;
}