mirror of
https://github.com/dschmenk/apple2pi.git
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111 lines
3.0 KiB
C
111 lines
3.0 KiB
C
/*
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MIT License
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Copyright (c) 2022 Oliver Schmidt (https://a2retro.de/)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include <stdio.h>
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#include "pico/printf.h"
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#include "pico/stdlib.h"
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#include "pico/multicore.h"
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#ifdef RASPBERRYPI_PICO_W
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#include "pico/cyw43_arch.h"
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#endif
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#include "bus.pio.h"
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#include "board.h"
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#ifdef TRACE
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void uart_printf(uart_inst_t *uart, const char *format, ...) {
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static char buffer[0x100];
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va_list va;
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va_start(va, format);
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vsnprintf(buffer, sizeof(buffer), format, va);
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va_end(va);
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buffer[0xFF] = '\0';
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uart_puts(uart, buffer);
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}
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#endif
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void res_callback(uint gpio, uint32_t events) {
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}
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void main(void) {
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multicore_launch_core1(board);
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#ifdef RASPBERRYPI_PICO_W
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cyw43_arch_init();
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#else
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gpio_init(PICO_DEFAULT_LED_PIN);
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gpio_set_dir(PICO_DEFAULT_LED_PIN, GPIO_OUT);
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#endif
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gpio_init(gpio_irq);
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gpio_pull_up(gpio_irq);
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gpio_init(gpio_res);
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gpio_set_irq_enabled_with_callback(gpio_res, GPIO_IRQ_EDGE_RISE, true, &res_callback);
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stdio_init_all();
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stdio_set_translate_crlf(&stdio_usb, false);
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#ifdef TRACE
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uart_init(uart0, 115200);
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uart_set_translate_crlf(uart0, true);
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gpio_set_function(0, GPIO_FUNC_UART);
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gpio_set_function(1, GPIO_FUNC_UART);
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#endif
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while (true) {
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if (multicore_fifo_rvalid()) {
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uint32_t data = multicore_fifo_pop_blocking();
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putchar(data);
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#ifdef TRACE
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uart_printf(uart0, "> %02X\n", data);
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#endif
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}
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if (multicore_fifo_wready()) {
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int data = getchar_timeout_us(0);
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if (data != PICO_ERROR_TIMEOUT) {
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multicore_fifo_push_blocking(data);
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#ifdef TRACE
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uart_printf(uart0, "< %02X\n", data);
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#endif
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}
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}
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#ifdef RASPBERRYPI_PICO_W
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static bool last_active;
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if (active != last_active) {
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cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, active);
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last_active = active;
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}
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#else
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gpio_put(PICO_DEFAULT_LED_PIN, active);
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#endif
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}
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}
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