joybus_target.pio.h

// ---------------------------------------------------------------- //
// This file is autogenerated by pioasm version 2.2.0; do not edit! //
// ---------------------------------------------------------------- //
 
#pragma once
 
#if !PICO_NO_HARDWARE
#include "hardware/pio.h"
#endif
 
// ------------- //
// joybus_target //
// ------------- //
 
#define joybus_target_wrap_target 0
#define joybus_target_wrap 15
#define joybus_target_pio_version 0
 
#define joybus_target_TICKS_PER_BIT 24
 
#define joybus_target_offset_transmit 7u
 
static const uint16_t joybus_target_program_instructions[] = {
            //     .wrap_target
    0xe027, //  0: set    x, 7            side 0
    0x2820, //  1: wait   0 pin, 0        side 0 [8]
    0x4001, //  2: in     pins, 1         side 0
    0x20a0, //  3: wait   1 pin, 0        side 0
    0x0041, //  4: jmp    x--, 1          side 0
    0xc010, //  5: irq    nowait 0 rel    side 0
    0x0000, //  6: jmp    0               side 0
    0x8ba0, //  7: pull   block           side 0 [11]
    0xa542, //  8: nop                    side 0 [5]
    0x7021, //  9: out    x, 1            side 1
    0x142c, // 10: jmp    !x, 12          side 1 [4]
    0x0b0d, // 11: jmp    13              side 0 [11]
    0xbb42, // 12: nop                    side 1 [11]
    0x05e9, // 13: jmp    !osre, 9        side 0 [5]
    0xbb42, // 14: nop                    side 1 [11]
    0xc010, // 15: irq    nowait 0 rel    side 0
            //     .wrap
};
 
#if !PICO_NO_HARDWARE
static const struct pio_program joybus_target_program = {
    .instructions = joybus_target_program_instructions,
    .length = 16,
    .origin = -1,
    .pio_version = joybus_target_pio_version,
#if PICO_PIO_VERSION > 0
    .used_gpio_ranges = 0x0
#endif
};
 
static inline pio_sm_config joybus_target_program_get_default_config(uint offset) {
    pio_sm_config c = pio_get_default_sm_config();
    sm_config_set_wrap(&c, offset + joybus_target_wrap_target, offset + joybus_target_wrap);
    sm_config_set_sideset(&c, 1, false, true);
    return c;
}
 
#include "hardware/clocks.h"
static inline void joybus_target_program_init(PIO pio, uint sm, uint offset, uint pin, uint bus_freq) {
  pio_sm_config c = joybus_target_program_get_default_config(offset);
  // Set pin configuration
  sm_config_set_in_pins(&c, pin);
  sm_config_set_sideset_pins(&c, pin);
  // Auto-pull and auto-push with 8-bit thresholds
  sm_config_set_out_shift(&c, false, true, 8);
  sm_config_set_in_shift(&c, false, true, 8);
  // Set clock divider based on desired bus frequency and internal timing
  float div = (float)clock_get_hz(clk_sys) / (joybus_target_TICKS_PER_BIT * bus_freq);
  sm_config_set_clkdiv(&c, div);
  // Initialize and enable the state machine
  pio_sm_init(pio, sm, offset, &c);
  pio_sm_set_enabled(pio, sm, true);
}
 
#endif