From a38dd9dda55edde763faecbf4f18970b7682cce8 Mon Sep 17 00:00:00 2001
From: tmk <hasu@tmk-kbd.com>
Date: Thu, 11 May 2017 00:59:20 +0900
Subject: [PATCH] usb_usb: Add Makefiles

---
 converter/usb_usb/Makefile.8mhz  | 5 +++++
 converter/usb_usb/Makefile.debug | 6 ++++++
 converter/usb_usb/main.cpp       | 4 ++++
 converter/usb_usb/usb_usb.cpp    | 1 +
 4 files changed, 16 insertions(+)
 create mode 100644 converter/usb_usb/Makefile.8mhz
 create mode 100644 converter/usb_usb/Makefile.debug

diff --git a/converter/usb_usb/Makefile.8mhz b/converter/usb_usb/Makefile.8mhz
new file mode 100644
index 00000000..845a02be
--- /dev/null
+++ b/converter/usb_usb/Makefile.8mhz
@@ -0,0 +1,5 @@
+F_CPU = 8000000
+F_USB = 16000000
+UNIMAP_ENABLE = yes
+KEYMAP_SECTION_ENABLE = yes
+include Makefile
diff --git a/converter/usb_usb/Makefile.debug b/converter/usb_usb/Makefile.debug
new file mode 100644
index 00000000..e229cd78
--- /dev/null
+++ b/converter/usb_usb/Makefile.debug
@@ -0,0 +1,6 @@
+TARGET = usb_usb_debug
+UNIMAP_ENABLE = yes
+#KEYMAP_SECTION_ENABLE = yes
+#LUFA_DEBUG = yes
+OPT_DEFS += -DDEBUG_USB_HOST
+include Makefile
diff --git a/converter/usb_usb/main.cpp b/converter/usb_usb/main.cpp
index 2d9f5602..76e88922 100644
--- a/converter/usb_usb/main.cpp
+++ b/converter/usb_usb/main.cpp
@@ -42,7 +42,11 @@ static void LUFA_setup(void)
     wdt_disable();
 
     /* Disable clock division */
+#if (F_CPU == 8000000)
+    clock_prescale_set(clock_div_2);    // 16MHz crystal divided by 2
+#else
     clock_prescale_set(clock_div_1);
+#endif
 
     // Leonardo needs. Without this USB device is not recognized.
     USB_Disable();
diff --git a/converter/usb_usb/usb_usb.cpp b/converter/usb_usb/usb_usb.cpp
index 26721de0..be690ffc 100644
--- a/converter/usb_usb/usb_usb.cpp
+++ b/converter/usb_usb/usb_usb.cpp
@@ -160,6 +160,7 @@ uint8_t matrix_scan(void) {
 
         // restore LED state when keyboard comes up
         if (usb_state == USB_STATE_RUNNING) {
+            dprintf("speed: %s\n", usb_host.getVbusState()==FSHOST ? "full" : "low");
             keyboard_set_leds(host_keyboard_leds());
         }
     }
-- 
2.46.2