pio_rpi_pico.h

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/*
 * Copyright (c) 2023 Tokita, Hiroshi <[email protected]>
 * Copyright (c) 2023 Yonatan Schachter
 * Copyright (c) 2023 Ionut Pavel <[email protected]>
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_DRIVERS_MISC_PIO_PICO_RPI_PIO_PICO_RPI_H_
#define ZEPHYR_DRIVERS_MISC_PIO_PICO_RPI_PIO_PICO_RPI_H_
 
#include <zephyr/devicetree/gpio.h>
 
#include <hardware/pio.h>
 
#define RPI_PICO_PIO_DEFINE_PROGRAM(name, wrap_target, wrap, ...)       \
        static const uint32_t name ## _wrap_target = wrap_target;       \
        static const uint32_t name ## _wrap = wrap;                     \
        static const uint16_t name ## _program_instructions[] = {       \
                __VA_ARGS__                                             \
        };                                                              \
        static const struct pio_program name ## _program = {            \
                .instructions = name ## _program_instructions,          \
                .length = ARRAY_SIZE(name ## _program_instructions),    \
                .origin = -1,                                           \
        }
 
#define RPI_PICO_PIO_GET_WRAP_TARGET(name) name ## _wrap_target
 
#define RPI_PICO_PIO_GET_WRAP(name) name ## _wrap
 
#define RPI_PICO_PIO_GET_PROGRAM(name) &name ## _program
 
#define DT_RPI_PICO_PIO_PIN_BY_NAME(node_id, p_name, p_idx, g_name, g_idx)                      \
        RP2_GET_PIN_NUM(DT_PROP_BY_IDX(                                                         \
                DT_CHILD(DT_PINCTRL_BY_NAME(node_id, p_name, p_idx), g_name), pinmux, g_idx))
 
#define DT_INST_RPI_PICO_PIO_PIN_BY_NAME(inst, p_name, p_idx, g_name, g_idx)                    \
        DT_RPI_PICO_PIO_PIN_BY_NAME(DT_DRV_INST(inst), p_name, p_idx, g_name, g_idx)
 
#define DT_INST_PIO_PIN_BY_NAME(inst, name) \
        DT_PIO_PIN_BY_NAME(DT_DRV_INST(inst), name)
 
PIO pio_rpi_pico_get_pio(const struct device *dev);
 
int pio_rpi_pico_allocate_sm(const struct device *dev, size_t *sm);
 
#endif /* ZEPHYR_DRIVERS_MISC_PIO_PICO_RPI_PIO_PICO_RPI_H_ */