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drivers: gpio: mcux: support port_get_direction

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Support querying the direction of GPIO.

Signed-off-by: Christopher Friedt <cfriedt@fb.com>
This commit is contained in:
Christopher Friedt 2022-06-17 11:07:41 -04:00 committed by Carles Cufí
parent 00004fb976
commit f88264d7ca
2 changed files with 26 additions and 3 deletions
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23
drivers/gpio/gpio_mcux.c
View file

@ -261,6 +261,26 @@ static void gpio_mcux_port_isr(const struct device *dev)
gpio_fire_callbacks(&data->callbacks, dev, int_status);
}
#ifdef CONFIG_GPIO_GET_DIRECTION
static int gpio_mcux_port_get_direction(const struct device *dev, gpio_port_pins_t map,
gpio_port_pins_t *inputs, gpio_port_pins_t *outputs)
{
const struct gpio_mcux_config *config = dev->config;
GPIO_Type *gpio_base = config->gpio_base;
map &= config->common.port_pin_mask;
if (inputs != NULL) {
*inputs = map & (~gpio_base->PDDR);
}
if (outputs != NULL) {
*outputs = map & gpio_base->PDDR;
}
return 0;
}
#endif /* CONFIG_GPIO_GET_DIRECTION */
static const struct gpio_driver_api gpio_mcux_driver_api = {
.pin_configure = gpio_mcux_configure,
@ -271,6 +291,9 @@ static const struct gpio_driver_api gpio_mcux_driver_api = {
.port_toggle_bits = gpio_mcux_port_toggle_bits,
.pin_interrupt_configure = gpio_mcux_pin_interrupt_configure,
.manage_callback = gpio_mcux_manage_callback,
#ifdef CONFIG_GPIO_GET_DIRECTION
.port_get_direction = gpio_mcux_port_get_direction,
#endif /* CONFIG_GPIO_GET_DIRECTION */
};
#define GPIO_MCUX_IRQ_INIT(n) \

6
include/zephyr/drivers/gpio.h
View file

@ -564,8 +564,8 @@ __subsystem struct gpio_driver_api {
bool set);
uint32_t (*get_pending_int)(const struct device *dev);
#ifdef CONFIG_GPIO_GET_DIRECTION
int (*port_get_direction)(const struct device *port, gpio_port_pins_t *inputs,
gpio_port_pins_t *outputs);
int (*port_get_direction)(const struct device *port, gpio_port_pins_t map,
gpio_port_pins_t *inputs, gpio_port_pins_t *outputs);
#endif /* CONFIG_GPIO_GET_DIRECTION */
};
@ -777,7 +777,7 @@ __syscall int gpio_port_get_direction(const struct device *port, gpio_port_pins_
#ifdef CONFIG_GPIO_GET_DIRECTION
static inline int z_impl_gpio_port_get_direction(const struct device *port, gpio_port_pins_t map,
gpio_port_pins_t *inputs,
gpio_port_pins_t *outputs);
gpio_port_pins_t *outputs)
{
const struct gpio_driver_api *api = (const struct gpio_driver_api *)port->api;