69 lines
2.7 KiB
C
69 lines
2.7 KiB
C
|
/*
|
||
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
||
|
|
*
|
||
|
|
* The MIT License (MIT)
|
||
|
|
*
|
||
|
|
* Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
* of this software and associated documentation files (the "Software"), to deal
|
||
|
|
* in the Software without restriction, including without limitation the rights
|
||
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
* copies of the Software, and to permit persons to whom the Software is
|
||
|
|
* furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in
|
||
|
|
* all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
|
* THE SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_RP2PIO_STATEMACHINE_H
|
||
|
|
#define MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_RP2PIO_STATEMACHINE_H
|
||
|
|
|
||
|
|
#include "py/obj.h"
|
||
|
|
|
||
|
|
#include "src/rp2_common/hardware_pio/include/hardware/pio.h"
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
mp_obj_base_t base;
|
||
|
|
uint32_t pins; // Bitmask of what pins this state machine uses.
|
||
|
|
int state_machine;
|
||
|
|
PIO pio;
|
||
|
|
bool in;
|
||
|
|
bool out;
|
||
|
|
uint tx_dreq;
|
||
|
|
uint rx_dreq;
|
||
|
|
bool out_shift_right;
|
||
|
|
bool in_shift_right;
|
||
|
|
uint32_t actual_frequency;
|
||
|
|
} rp2pio_statemachine_obj_t;
|
||
|
|
|
||
|
|
void reset_rp2pio_statemachine(void);
|
||
|
|
|
||
|
|
// Minimal internal version that only fails on pin error (not in use) or full PIO.
|
||
|
|
bool rp2pio_statemachine_construct(rp2pio_statemachine_obj_t *self,
|
||
|
|
const uint16_t* program, size_t program_len,
|
||
|
|
size_t frequency,
|
||
|
|
const uint16_t* init, size_t init_len,
|
||
|
|
const mcu_pin_obj_t * first_out_pin, uint8_t out_pin_count,
|
||
|
|
const mcu_pin_obj_t * first_in_pin, uint8_t in_pin_count,
|
||
|
|
const mcu_pin_obj_t * first_set_pin, uint8_t set_pin_count,
|
||
|
|
const mcu_pin_obj_t * first_sideset_pin, uint8_t sideset_pin_count,
|
||
|
|
uint32_t pins_we_use, bool tx_fifo, bool rx_fifo,
|
||
|
|
bool auto_pull, uint8_t pull_threshold, bool out_shift_right,
|
||
|
|
bool auto_push, uint8_t push_threshold, bool in_shift_right,
|
||
|
|
bool claim_pins);
|
||
|
|
|
||
|
|
void rp2pio_statemachine_deinit(rp2pio_statemachine_obj_t *self, bool leave_pins);
|
||
|
|
|
||
|
|
extern const mp_obj_type_t rp2pio_statemachine_type;
|
||
|
|
|
||
|
|
#endif // MICROPY_INCLUDED_RASPBERRYPI_COMMON_HAL_RP2PIO_STATEMACHINE_H
|