///////////////////////////////////////////////////////////////////////////////////////////////
//
// void gpio_pin_dir_output(gpio_pin_id_t gpio_pin_id, uint8_t gpio_pin_config_options)
//
// Description:
// Configures a GPIO pin as an output
//
// Parameters:
// gpio_pin_id_t gpio_pin_id - ID of the GPIO pin to be configured as an output
// uint8_t gpio_pin_config_options - GPIO pin configuration options
//
// Return value:
// None
//
///////////////////////////////////////////////////////////////////////////////////////////////
void gpio_pin_dir_output(gpio_pin_id_t gpio_pin_id, uint8_t gpio_pin_config_options)
{
//Process the request based on the pin block
if(gpio_pin_id <= GPIO_PIN_ID_P0_7)
{
//Set up the options (other than the actual direction) for the pin here
P0CON = ((gpio_pin_id % 8) & PXCON_BIT_ADDR_MASK) | (gpio_pin_config_options & PXCON_PINMODE_MASK);
gpio_pins_dir_output(P0DIR, (1 << (gpio_pin_id % 8)));
}
else if(gpio_pin_id <= GPIO_PIN_ID_P1_7)
{
//Set up the options (other than the actual direction) for the pin here
P1CON = ((gpio_pin_id % 8) & PXCON_BIT_ADDR_MASK) | (gpio_pin_config_options & PXCON_PINMODE_MASK);
gpio_pins_dir_output(P1DIR, (1 << (gpio_pin_id % 8)));
}
else if(gpio_pin_id <= GPIO_PIN_ID_P2_7)
{
//Set up the options (other than the actual direction) for the pin here
P2CON = ((gpio_pin_id % 8) & PXCON_BIT_ADDR_MASK) | (gpio_pin_config_options & PXCON_PINMODE_MASK);
gpio_pins_dir_output(P2DIR, (1 << (gpio_pin_id % 8)));
}
else if(gpio_pin_id <= GPIO_PIN_ID_P3_6)
{
//Set up the options (other than the actual direction) for the pin here
P3CON = ((gpio_pin_id % 8) & PXCON_BIT_ADDR_MASK) | (gpio_pin_config_options & PXCON_PINMODE_MASK);
gpio_pins_dir_output(P3DIR, (1 << (gpio_pin_id % 8)));
}
}
///////////////////////////////////////////////////////////////////////////////////////////////
//
// void gpio_pin_configure(gpio_pin_id_t gpio_pin_id, unsigned char gpio_pin_config_options)
//
// Description:
// Configures a GPIO pin
//
// Parameters:
// gpio_pin_id_t gpio_pin_id - ID of the GPIO pin to be configured
// unsigned char gpio_pin_config_options - ADC configuration options
//
// Return value:
// None
//
///////////////////////////////////////////////////////////////////////////////////////////////
void gpio_pin_configure(gpio_pin_id_t gpio_pin_id, unsigned char gpio_pin_config_options)
{
//Process the request based on the pin block
if(gpio_pin_id <= GPIO_PIN_ID_P0_7)
{
//The pin is in P0, so now check if the request is for input or output direction
if(gpio_pin_config_options & GPIO_PIN_CONFIG_OPTION_DIR_OUTPUT)
{
//The request was output, so now check if the pin value should be cleared or set
if(gpio_pin_config_options & GPIO_PIN_CONFIG_OPTION_OUTPUT_VAL_SET)
{
gpio_pins_val_set(P0, (1 << (gpio_pin_id % 8)));
}
else
{
gpio_pins_val_clear(P0, (1 << (gpio_pin_id % 8)));
}
//Set up the options (other than the actual direction) for the pin here
P0CON = ((gpio_pin_id % 8) & PXCON_BIT_ADDR_MASK) |
(gpio_pin_config_options & PXCON_PINMODE_MASK);
//Finally, set up the GPIO pin as an output
gpio_pins_dir_output(P0DIR, (1 << (gpio_pin_id % 8)));
}
else
{
//The request was input, so set up the options (other than the actual direction) for the pin here
P0CON = ((gpio_pin_id % 8) & PXCON_BIT_ADDR_MASK) |
PXCON_IN_OUT |
(gpio_pin_config_options & PXCON_PINMODE_MASK);
//Finally, set up the GPIO pin as an input
gpio_pins_dir_input(P0DIR, (1 << (gpio_pin_id % 8)));
}
}
else if(gpio_pin_id <= GPIO_PIN_ID_P1_7)
{
//The pin is in P1, so now check if the request is for input or output direction
if(gpio_pin_config_options & GPIO_PIN_CONFIG_OPTION_DIR_OUTPUT)
{
//The request was output, so now check if the pin value should be cleared or set
if(gpio_pin_config_options & GPIO_PIN_CONFIG_OPTION_OUTPUT_VAL_SET)
{
gpio_pins_val_set(P1, (1 << (gpio_pin_id % 8)));
}
else
{
gpio_pins_val_clear(P1, (1 << (gpio_pin_id % 8)));
}
//Set up the options (other than the actual direction) for the pin here
P1CON = ((gpio_pin_id % 8) & PXCON_BIT_ADDR_MASK) |
(gpio_pin_config_options & PXCON_PINMODE_MASK);
//Finally, set up the GPIO pin as an input
gpio_pins_dir_output(P1DIR, (1 << (gpio_pin_id % 8)));
}
else
{
//The request was input, so set up the options (other than the actual direction) for the pin here
P1CON = ((gpio_pin_id % 8) & PXCON_BIT_ADDR_MASK) |
PXCON_IN_OUT |
(gpio_pin_config_options & PXCON_PINMODE_MASK);
//Finally, set up the GPIO pin as an input
gpio_pins_dir_input(P1DIR, (1 << (gpio_pin_id % 8)));
}
}
else if(gpio_pin_id <= GPIO_PIN_ID_P2_6)
{
//The pin is in P2 (keep in mind there is no P2.7 on any part), so now check if the request is for input or output direction
if(gpio_pin_config_options & GPIO_PIN_CONFIG_OPTION_DIR_OUTPUT)
{
//The request was output, so now check if the pin value should be cleared or set
if(gpio_pin_config_options & GPIO_PIN_CONFIG_OPTION_OUTPUT_VAL_SET)
{
gpio_pins_val_set(P2, (1 << (gpio_pin_id % 8)));
}
else
{
gpio_pins_val_clear(P2, (1 << (gpio_pin_id % 8)));
}
//Set up the options (other than the actual direction) for the pin here
P2CON = ((gpio_pin_id % 8) & PXCON_BIT_ADDR_MASK) |
(gpio_pin_config_options & PXCON_PINMODE_MASK);
//Finally, set up the GPIO pin as an input
gpio_pins_dir_output(P2DIR, (1 << (gpio_pin_id % 8)));
}
else
{
//The request was input, so set up the options (other than the actual direction) for the pin here
P2CON = ((gpio_pin_id % 8) & PXCON_BIT_ADDR_MASK) |
PXCON_IN_OUT |
(gpio_pin_config_options & PXCON_PINMODE_MASK);
//Finally, set up the GPIO pin as an input
gpio_pins_dir_input(P2DIR, (1 << (gpio_pin_id % 8)));
}
}
}
