Add scanning for ISO18092 tags.

1 files changed, 38 insertions, 6 deletions

diff --git a/main.cpp b/main.cpp
index fbc3e23..8e267bf 100644
--- a/main.cpp
+++ b/main.cpp
@@ -8,6 +8,11 @@
 #include <usb/usb.h>
 #include <usb/descriptor.h>
 
+enum tag_type_t {
+	ISO15693,
+	ISO18092,
+};
+
 auto dev_desc = device_desc(0x200, 0, 0, 0, 64, 0x1d50, 0x60f8, 0, 0, 0, 0, 1);
 auto conf_desc = configuration_desc(2, 1, 0, 0xc0, 0,
 	interface_desc(1, 0, 1, 0xff, 0x00, 0x00, 0,
@@ -175,11 +180,10 @@ int main() {
 	bool cmd_sent = false;
 	uint32_t nfc_delay_until = 0;
 	uint8_t bulk_buf[8];
+	tag_type_t active_type = ISO15693;
 	
 	Time::sleep(1000);
 	
-	cr95hf.send_cmd(0x02, 2, (uint8_t*)"\x01\x05"); // Select ISO 15693
-	cr95hf.get_response(64, buf);
 	
 	kp_cols.set_mode(Pin::Input);
 	kp_cols.set_pull(Pin::PullUp);
@@ -195,8 +199,21 @@ int main() {
 		} else if(!cmd_sent) {
 			led.off();
 			
-			cr95hf.send_cmd(0x04, 3, (uint8_t*)"\x26\x01\x00"); // INVENTORY
+			if(active_type == ISO15693) {
+				cr95hf.send_cmd(0x02, 2, (uint8_t*)"\x01\x05"); // Select ISO 15693
+				cr95hf.get_response(64, buf);
+				
+				cr95hf.send_cmd(0x04, 3, (uint8_t*)"\x26\x01\x00"); // INVENTORY
+				
+			} else if(active_type == ISO18092) {
+				cr95hf.send_cmd(0x02, 2, (uint8_t*)"\x04\x51"); // Select ISO 18092
+				cr95hf.get_response(64, buf);
+				
+				cr95hf.send_cmd(0x04, 5, (uint8_t*)"\x00\xff\xff\x00\x00"); // REQC
+			}
+			
 			cmd_sent = true;
+
 		} else if(!nfc_irq_out.get()) {
 			cr95hf.get_response(64, buf);
 			cmd_sent = false;
@@ -204,10 +221,19 @@ int main() {
 			if(buf[0] == 128 && buf[14] == 0) {
 				led.on();
 				
-				uint8_t* id_raw = &buf[11];
 				uint8_t* id_buf = bulk_buf;
-				for(uint32_t i = 0; i < 8; i++) {
-					*id_buf++ = *id_raw--;
+				
+				if(active_type == ISO15693) {
+					uint8_t* id_raw = &buf[11];
+					for(uint32_t i = 0; i < 8; i++) {
+						*id_buf++ = *id_raw--;
+					}
+				
+				} else if(active_type == ISO18092) {
+					uint8_t* id_raw = &buf[3];
+					for(uint32_t i = 0; i < 8; i++) {
+						*id_buf++ = *id_raw++;
+					}
 				}
 				
 				if(usb.ep_ready(1)) {
@@ -217,6 +243,12 @@ int main() {
 				nfc_delay_until = Time::time() + 5000; // Valid for five seconds.
 			} else {
 				nfc_delay_until = Time::time() + 100; // Retry in 100ms.
+				
+				if(active_type == ISO15693) {
+					active_type = ISO18092;
+				} else {
+					active_type = ISO15693;
+				}
 			}
 		}