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drivers: gpio_rpi_pico: Add gpio_get_config API

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Implement the `gpio_get_config`

N.b. adding this API results in a new test failure in
`test_gpio_config_trigger`. This suggests that there is some kind of
dependency between this and the now-enabled `pin_get_config` test cases.
Note that this adds a read-only API, it is unlikely to be the cause of
the failure.

Signed-off-by: Andrew Featherstone <andrew.featherstone@gmail.com>
This commit is contained in:
Andrew Featherstone 2025-01-22 21:35:10 +00:00 • committed by Benjamin Cabé
commit 06be6ebf3a
1 changed files with 34 additions and 0 deletions
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34
drivers/gpio/gpio_rpi_pico.c
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@ -96,6 +96,37 @@ static int gpio_rpi_configure(const struct device *dev,
return 0;
}
#ifdef CONFIG_GPIO_GET_CONFIG
static int gpio_rpi_get_config(const struct device *dev, gpio_pin_t pin, gpio_flags_t *flags)
{
struct gpio_rpi_data *data = dev->data;
*flags = 0;
/* RP2xxxx supports Bus Keeper mode where both pull-up and pull-down are enabled. */
if (gpio_is_pulled_up(pin)) {
*flags |= GPIO_PULL_UP;
}
if (gpio_is_pulled_down(pin)) {
*flags |= GPIO_PULL_DOWN;
}
if (gpio_get_dir(pin)) {
*flags |= gpio_get_out_level(pin) ? GPIO_OUTPUT_HIGH : GPIO_OUTPUT_LOW;
if (data->single_ended_mask & BIT(pin)) {
*flags |=
data->open_drain_mask & BIT(pin) ? GPIO_OPEN_DRAIN : GPIO_PUSH_PULL;
}
}
if (pads_bank0_hw->io[pin] & PADS_BANK0_GPIO0_IE_BITS) {
*flags |= GPIO_INPUT;
}
return 0;
}
#endif
static int gpio_rpi_port_get_raw(const struct device *dev, uint32_t *value)
{
*value = gpio_get_all();
@ -235,6 +266,9 @@ static int gpio_rpi_port_get_direction(const struct device *port, gpio_port_pins
static DEVICE_API(gpio, gpio_rpi_driver_api) = {
.pin_configure = gpio_rpi_configure,
#ifdef CONFIG_GPIO_GET_CONFIG
.pin_get_config = gpio_rpi_get_config,
#endif
.port_get_raw = gpio_rpi_port_get_raw,
.port_set_masked_raw = gpio_rpi_port_set_masked_raw,
.port_set_bits_raw = gpio_rpi_port_set_bits_raw,