initial commit

usb_device.c

@@ -0,0 +1,64 @@
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "pico/stdlib.h"
+
+#include "tusb.h"
+#include "usb_descriptors.h"
+
+#include "usb_device.h"
+
+void usb_device_init(void) {
+	// run TinyUSB device
+	tusb_rhport_init_t dev_init = {
+		.role = TUSB_ROLE_DEVICE,
+		.speed = TUSB_SPEED_AUTO,
+	};
+	tusb_init(BOARD_TUH_RHPORT, &dev_init);
+}
+
+// Invoked when received SET_REPORT control request or
+// received data on OUT endpoint ( Report ID = 0, Type = 0 )
+void tud_hid_set_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize) {
+	(void) instance;
+	(void) report_id;
+	(void) report_type;
+	(void) buffer;
+	(void) bufsize;
+}
+
+// Invoked when received GET_REPORT control request
+// Application must fill buffer report's content and return its length.
+// Return zero will cause the stack to STALL request
+uint16_t tud_hid_get_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen)
+{
+	(void) instance;
+	(void) report_id;
+	(void) report_type;
+	(void) buffer;
+	(void) reqlen;
+
+	return 0;
+}
+
+// print message to CDC in raw hex
+void cdc_print_hex(uint8_t const* msg, uint16_t msg_len) {
+	char tempbuf[8];
+	size_t count;
+	for (int i=0; i<msg_len; i++) {
+		count=sprintf(tempbuf, "%02X ", msg[i]);
+		tud_cdc_write(tempbuf, count);
+	}
+	tud_cdc_write_str("\n");
+}
+
+// print text message to CDC
+void cdc_print_str(char const* msg, uint16_t msg_len) {
+	tud_cdc_write(msg, msg_len);
+}
+
+void cdc_print_msg(char const* msg) {
+	uint16_t msg_len = strlen(msg);
+	cdc_print_str(msg, msg_len);
+}