v1.5.1
#include "pico.h"#include "hardware/structs/sio.h"#include "hardware/structs/padsbank0.h"#include "hardware/structs/iobank0.h"#include "hardware/irq.h"
Go to the source code of this file.
Macros | |
| #define | PARAM_ASSERTIONS_ENABLED_GPIO 0 |
| #define | GPIO_OUT 1 |
| #define | GPIO_IN 0 |
| #define | GPIO_IRQ_CALLBACK_ORDER_PRIORITY PICO_SHARED_IRQ_HANDLER_LOWEST_ORDER_PRIORITY |
| #define | GPIO_RAW_IRQ_HANDLER_DEFAULT_ORDER_PRIORITY PICO_SHARED_IRQ_HANDLER_DEFAULT_ORDER_PRIORITY |
| #define | PICO_DEBUG_PIN_BASE 19u |
| #define | PICO_DEBUG_PIN_COUNT 3u |
| #define | CU_REGISTER_DEBUG_PINS(...) enum __unused DEBUG_PIN_TYPE { _none = 0, __VA_ARGS__ }; static enum DEBUG_PIN_TYPE __selected_debug_pins; |
| #define | CU_SELECT_DEBUG_PINS(x) static enum DEBUG_PIN_TYPE __selected_debug_pins = (x); |
| #define | DEBUG_PINS_ENABLED(p) (__selected_debug_pins == (p)) |
| #define | DEBUG_PINS_SET(p, v) if (DEBUG_PINS_ENABLED(p)) gpio_set_mask((unsigned)(v)<<PICO_DEBUG_PIN_BASE) |
| #define | DEBUG_PINS_CLR(p, v) if (DEBUG_PINS_ENABLED(p)) gpio_clr_mask((unsigned)(v)<<PICO_DEBUG_PIN_BASE) |
| #define | DEBUG_PINS_XOR(p, v) if (DEBUG_PINS_ENABLED(p)) gpio_xor_mask((unsigned)(v)<<PICO_DEBUG_PIN_BASE) |
Typedefs | |
| typedef void(* | gpio_irq_callback_t) (uint gpio, uint32_t event_mask) |
Enumerations | |
| enum | gpio_function { GPIO_FUNC_XIP = 0 , GPIO_FUNC_SPI = 1 , GPIO_FUNC_UART = 2 , GPIO_FUNC_I2C = 3 , GPIO_FUNC_PWM = 4 , GPIO_FUNC_SIO = 5 , GPIO_FUNC_PIO0 = 6 , GPIO_FUNC_PIO1 = 7 , GPIO_FUNC_GPCK = 8 , GPIO_FUNC_USB = 9 , GPIO_FUNC_NULL = 0x1f } |
| GPIO function definitions for use with function select. More... | |
| enum | gpio_irq_level { GPIO_IRQ_LEVEL_LOW = 0x1u , GPIO_IRQ_LEVEL_HIGH = 0x2u , GPIO_IRQ_EDGE_FALL = 0x4u , GPIO_IRQ_EDGE_RISE = 0x8u } |
| GPIO Interrupt level definitions (GPIO events) More... | |
| enum | gpio_override { GPIO_OVERRIDE_NORMAL = 0 , GPIO_OVERRIDE_INVERT = 1 , GPIO_OVERRIDE_LOW = 2 , GPIO_OVERRIDE_HIGH = 3 } |
| enum | gpio_slew_rate { GPIO_SLEW_RATE_SLOW = 0 , GPIO_SLEW_RATE_FAST = 1 } |
| Slew rate limiting levels for GPIO outputs. More... | |
| enum | gpio_drive_strength { GPIO_DRIVE_STRENGTH_2MA = 0 , GPIO_DRIVE_STRENGTH_4MA = 1 , GPIO_DRIVE_STRENGTH_8MA = 2 , GPIO_DRIVE_STRENGTH_12MA = 3 } |
| Drive strength levels for GPIO outputs. More... | |
Functions | |
| static void | check_gpio_param (__unused uint gpio) |
| void | gpio_set_function (uint gpio, enum gpio_function fn) |
| Select GPIO function. More... | |
| enum gpio_function | gpio_get_function (uint gpio) |
| Determine current GPIO function. More... | |
| void | gpio_set_pulls (uint gpio, bool up, bool down) |
| Select up and down pulls on specific GPIO. More... | |
| static void | gpio_pull_up (uint gpio) |
| Set specified GPIO to be pulled up. More... | |
| static bool | gpio_is_pulled_up (uint gpio) |
| Determine if the specified GPIO is pulled up. More... | |
| static void | gpio_pull_down (uint gpio) |
| Set specified GPIO to be pulled down. More... | |
| static bool | gpio_is_pulled_down (uint gpio) |
| Determine if the specified GPIO is pulled down. More... | |
| static void | gpio_disable_pulls (uint gpio) |
| Disable pulls on specified GPIO. More... | |
| void | gpio_set_irqover (uint gpio, uint value) |
| Set GPIO IRQ override. More... | |
| void | gpio_set_outover (uint gpio, uint value) |
| Set GPIO output override. More... | |
| void | gpio_set_inover (uint gpio, uint value) |
| Select GPIO input override. More... | |
| void | gpio_set_oeover (uint gpio, uint value) |
| Select GPIO output enable override. More... | |
| void | gpio_set_input_enabled (uint gpio, bool enabled) |
| Enable GPIO input. More... | |
| void | gpio_set_input_hysteresis_enabled (uint gpio, bool enabled) |
| Enable/disable GPIO input hysteresis (Schmitt trigger) More... | |
| bool | gpio_is_input_hysteresis_enabled (uint gpio) |
| Determine whether input hysteresis is enabled on a specified GPIO. More... | |
| void | gpio_set_slew_rate (uint gpio, enum gpio_slew_rate slew) |
| Set slew rate for a specified GPIO. More... | |
| enum gpio_slew_rate | gpio_get_slew_rate (uint gpio) |
| Determine current slew rate for a specified GPIO. More... | |
| void | gpio_set_drive_strength (uint gpio, enum gpio_drive_strength drive) |
| Set drive strength for a specified GPIO. More... | |
| enum gpio_drive_strength | gpio_get_drive_strength (uint gpio) |
| Determine current slew rate for a specified GPIO. More... | |
| void | gpio_set_irq_enabled (uint gpio, uint32_t event_mask, bool enabled) |
| Enable or disable specific interrupt events for specified GPIO. More... | |
| void | gpio_set_irq_callback (gpio_irq_callback_t callback) |
| Set the generic callback used for GPIO IRQ events for the current core. More... | |
| void | gpio_set_irq_enabled_with_callback (uint gpio, uint32_t event_mask, bool enabled, gpio_irq_callback_t callback) |
| Convenience function which performs multiple GPIO IRQ related initializations. More... | |
| void | gpio_set_dormant_irq_enabled (uint gpio, uint32_t event_mask, bool enabled) |
| Enable dormant wake up interrupt for specified GPIO and events. More... | |
| static uint32_t | gpio_get_irq_event_mask (uint gpio) |
| Return the current interrupt status (pending events) for the given GPIO. More... | |
| void | gpio_acknowledge_irq (uint gpio, uint32_t event_mask) |
| Acknowledge a GPIO interrupt for the specified events on the calling core. More... | |
| void | gpio_add_raw_irq_handler_with_order_priority_masked (uint gpio_mask, irq_handler_t handler, uint8_t order_priority) |
| Adds a raw GPIO IRQ handler for the specified GPIOs on the current core. More... | |
| static void | gpio_add_raw_irq_handler_with_order_priority (uint gpio, irq_handler_t handler, uint8_t order_priority) |
| Adds a raw GPIO IRQ handler for a specific GPIO on the current core. More... | |
| void | gpio_add_raw_irq_handler_masked (uint gpio_mask, irq_handler_t handler) |
| Adds a raw GPIO IRQ handler for the specified GPIOs on the current core. More... | |
| static void | gpio_add_raw_irq_handler (uint gpio, irq_handler_t handler) |
| Adds a raw GPIO IRQ handler for a specific GPIO on the current core. More... | |
| void | gpio_remove_raw_irq_handler_masked (uint gpio_mask, irq_handler_t handler) |
| Removes a raw GPIO IRQ handler for the specified GPIOs on the current core. More... | |
| static void | gpio_remove_raw_irq_handler (uint gpio, irq_handler_t handler) |
| Removes a raw GPIO IRQ handler for the specified GPIO on the current core. More... | |
| void | gpio_init (uint gpio) |
| Initialise a GPIO for (enabled I/O and set func to GPIO_FUNC_SIO) More... | |
| void | gpio_deinit (uint gpio) |
| Resets a GPIO back to the NULL function, i.e. disables it. More... | |
| void | gpio_init_mask (uint gpio_mask) |
| Initialise multiple GPIOs (enabled I/O and set func to GPIO_FUNC_SIO) More... | |
| static bool | gpio_get (uint gpio) |
| Get state of a single specified GPIO. More... | |
| static uint32_t | gpio_get_all (void) |
| Get raw value of all GPIOs. More... | |
| static void | gpio_set_mask (uint32_t mask) |
| Drive high every GPIO appearing in mask. More... | |
| static void | gpio_clr_mask (uint32_t mask) |
| Drive low every GPIO appearing in mask. More... | |
| static void | gpio_xor_mask (uint32_t mask) |
| Toggle every GPIO appearing in mask. More... | |
| static void | gpio_put_masked (uint32_t mask, uint32_t value) |
| Drive GPIO high/low depending on parameters. More... | |
| static void | gpio_put_all (uint32_t value) |
| Drive all pins simultaneously. More... | |
| static void | gpio_put (uint gpio, bool value) |
| Drive a single GPIO high/low. More... | |
| static bool | gpio_get_out_level (uint gpio) |
| Determine whether a GPIO is currently driven high or low. More... | |
| static void | gpio_set_dir_out_masked (uint32_t mask) |
| Set a number of GPIOs to output. More... | |
| static void | gpio_set_dir_in_masked (uint32_t mask) |
| Set a number of GPIOs to input. More... | |
| static void | gpio_set_dir_masked (uint32_t mask, uint32_t value) |
| Set multiple GPIO directions. More... | |
| static void | gpio_set_dir_all_bits (uint32_t values) |
| Set direction of all pins simultaneously. More... | |
| static void | gpio_set_dir (uint gpio, bool out) |
| Set a single GPIO direction. More... | |
| static bool | gpio_is_dir_out (uint gpio) |
| Check if a specific GPIO direction is OUT. More... | |
| static uint | gpio_get_dir (uint gpio) |
| Get a specific GPIO direction. More... | |
| void | gpio_debug_pins_init (void) |
| enum gpio_override |
| Enumerator | |
|---|---|
| GPIO_OVERRIDE_NORMAL | peripheral signal selected via gpio_set_function |
| GPIO_OVERRIDE_INVERT | invert peripheral signal selected via gpio_set_function |
| GPIO_OVERRIDE_LOW | drive low/disable output |
| GPIO_OVERRIDE_HIGH | drive high/enable output |