156 lines
3.3 KiB
C
156 lines
3.3 KiB
C
#include "pico/stdlib.h"
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#include "pico/multicore.h"
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#include "pico/bootrom.h"
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#include "hardware/clocks.h"
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#include "hardware/gpio.h"
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#include "pio_usb.h"
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#include "tusb.h"
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#include "pico/cyw43_arch.h"
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#include "hid_report.h"
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#include "bt_device.h"
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#include "usb_device.h"
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#include "usb_host.h"
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#include "blehid_config.h"
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static void usb_main(void);
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#ifdef BUTTON_PIN
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static absolute_time_t last_button_time;
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static uint32_t last_button_event;
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static void gpio_callback(uint pin, uint32_t events);
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#endif
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// main loop
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int main(void) {
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// for PIO USB, we want clock speed to be multiple of 12MHz
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set_sys_clock_khz(144000, true);
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// need so BTstack can save pairing information to flash
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flash_safe_execute_core_init();
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sleep_ms(10);
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// run BLE on core 1
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multicore_reset_core1();
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multicore_launch_core1(btstack_main);
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// run usb on core 0
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usb_main();
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return 0;
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}
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static void usb_main(void) {
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// setup GPIO button for pair selection
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#ifdef BUTTON_PIN
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gpio_init(BUTTON_PIN);
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gpio_pull_up(BUTTON_PIN);
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gpio_set_irq_enabled_with_callback(BUTTON_PIN, GPIO_IRQ_EDGE_RISE | GPIO_IRQ_EDGE_FALL, true, &gpio_callback);
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#endif
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// init and run usb host
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usb_host_init();
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// init and run usb device
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usb_device_init();
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// set initial state
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bt_state = BT_STATE_ACTIVE;
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device_state = DEVICE_INACTIVE;
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while (true) {
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switch ( host_state ) {
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case HOST_NEW_DESCRIPTOR:
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host_ready();
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break;
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case HOST_START_LISTEN:
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request_hid_reports_all();
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break;
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case HOST_STOP_LISTEN:
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stop_hid_reports_all();
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break;
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case HOST_POLL:
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poll_devices();
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break;
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default:
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break;
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}
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switch ( device_state ) {
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case DEVICE_STOP:
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case DEVICE_START:
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if ( tud_disconnect() ) {
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sleep_ms(10);
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tud_connect();
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}
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if ( device_state == DEVICE_STOP ) {
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device_state = DEVICE_INACTIVE;
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host_state = HOST_STOP_LISTEN;
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} else if (device_state == DEVICE_START ) {
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device_state = DEVICE_ACTIVE;
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if ( num_mounted > 0 ) {
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set_host_poll_interval(1);
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host_state = HOST_START_LISTEN;
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}
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}
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break;
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default:
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break;
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}
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switch ( bt_state ) {
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case BT_STATE_STOP:
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bt_state = BT_STATE_INACTIVE;
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update_desc_hid_report();
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break;
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case BT_STATE_START:
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bt_state = BT_STATE_ACTIVE;
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update_desc_hid_report();
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break;
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default:
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break;
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}
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tuh_task(); // tinyusb host task
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tud_task(); // tinyusb device task
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tud_cdc_write_flush();
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}
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}
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#ifdef BUTTON_PIN
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static void gpio_callback(uint pin, uint32_t events) {
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uint64_t diff = absolute_time_diff_us(last_button_time, get_absolute_time());
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if (pin == BUTTON_PIN && diff >= BUTTON_DEBOUNCE) {
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if (events & GPIO_IRQ_EDGE_FALL) {
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// button pressed
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last_button_time = get_absolute_time();
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} else if (events & GPIO_IRQ_EDGE_RISE) {
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// button released
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if (diff >= BUTTON_LONG_PRESS) {
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//bt_device_command = BT_DEVICE_COMMAND_UNPAIR;
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} else {
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if ( bt_state == BT_STATE_ACTIVE ) {
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bt_state = BT_STATE_STOP;
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} else if ( bt_state == BT_STATE_INACTIVE ) {
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bt_state = BT_STATE_START;
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}
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if ( device_state == DEVICE_ACTIVE ) {
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device_state = DEVICE_STOP;
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} else if ( device_state == DEVICE_INACTIVE ) {
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device_state = DEVICE_START;
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}
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//bt_device_command = BT_DEVICE_COMMAND_SWITCH;
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}
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last_button_time = get_absolute_time();
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}
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}
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}
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#endif
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