From 9a7be0aeace0beb9daf032243ca9abf43c3268bb Mon Sep 17 00:00:00 2001
From: Vegard Storheil Eriksen <zyp@jvnv.net>
Date: Fri, 20 Sep 2019 17:57:40 +0200
Subject: Added HID interface.

---
 main.cpp | 46 +++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 43 insertions(+), 3 deletions(-)

diff --git a/main.cpp b/main.cpp
index 9aae4ee..ced6660 100644
--- a/main.cpp
+++ b/main.cpp
@@ -8,6 +8,7 @@
 #include <spi/spi.h>
 #include <usb/usb.h>
 #include <usb/descriptor.h>
+#include <usb/hid.h>
 
 const uint8_t fw_version = 1;
 
@@ -25,10 +26,37 @@ enum tag_type_t {
 	ISO18092,
 };
 
+auto report_desc = pack(
+	usage_page(0xffca),
+	usage(0x01),
+	collection(Collection::Application,
+		// ISO 15693
+		report_id(1),
+		usage_page(0xffca),
+		usage(0x41),
+		logical_minimum(0),
+		logical_maximum(255),
+		report_size(8),
+		report_count(8),
+		input(0x02),
+		
+		// ISO 18092
+		report_id(2),
+		usage_page(0xffca),
+		usage(0x42),
+		logical_minimum(0),
+		logical_maximum(255),
+		report_size(8),
+		report_count(8),
+		input(0x02)
+	)
+);
+
 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,
-		endpoint_desc(0x81, 0x02, 64, 0)
+	interface_desc(1, 0, 1, 0x03, 0x00, 0x00, 0,
+		hid_desc(0x111, 0, 1, 0x22, sizeof(report_desc)),
+		endpoint_desc(0x81, 0x03, 64, 0)
 	),
 	interface_desc(2, 0, 1, 0xff, 0x00, 0x00, 0,
 		endpoint_desc(0x82, 0x03, 64, 0)
@@ -37,6 +65,7 @@ auto conf_desc = configuration_desc(2, 1, 0, 0xc0, 0,
 
 desc_t dev_desc_p = {sizeof(dev_desc), (void*)&dev_desc};
 desc_t conf_desc_p = {sizeof(conf_desc), (void*)&conf_desc};
+desc_t report_desc_p = {sizeof(report_desc), (void*)&report_desc};
 
 USB_l0 usb(USB, dev_desc_p, conf_desc_p);
 
@@ -103,6 +132,14 @@ class CR95HF {
 
 CR95HF cr95hf(SPI1, nfc_ss);
 
+class HID_NFC : public USB_HID {
+	public:
+		HID_NFC(USB_generic& usbd, desc_t rdesc) : USB_HID(usbd, rdesc, 1, 1, 64) {}
+};
+
+HID_NFC hid_nfc(usb, report_desc_p);
+
+/*
 class USB_NFC : public USB_class_driver {
 	private:
 		USB_generic& usb;
@@ -121,6 +158,7 @@ class USB_NFC : public USB_class_driver {
 };
 
 USB_NFC usb_nfc(usb);
+*/
 
 class USB_keypad : public USB_class_driver {
 	private:
@@ -237,7 +275,7 @@ int main() {
 	uint8_t buf[64];
 	bool cmd_sent = false;
 	uint32_t nfc_delay_until = 0;
-	uint8_t bulk_buf[8];
+	uint8_t bulk_buf[9];
 	tag_type_t active_type = ISO15693;
 	
 	Time::sleep(1000);
@@ -282,12 +320,14 @@ int main() {
 				uint8_t* id_buf = bulk_buf;
 				
 				if(active_type == ISO15693) {
+					*id_buf++ = 1;
 					uint8_t* id_raw = &buf[11];
 					for(uint32_t i = 0; i < 8; i++) {
 						*id_buf++ = *id_raw--;
 					}
 				
 				} else if(active_type == ISO18092) {
+					*id_buf++ = 2;
 					uint8_t* id_raw = &buf[3];
 					for(uint32_t i = 0; i < 8; i++) {
 						*id_buf++ = *id_raw++;
-- 
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