Small updates.

tmk_core/protocol/chibios/README.md

@@ -8,16 +8,17 @@ Also pay attention to `-O0` (enabled for debugging); for deployment use `-O2`.
 - USB string descriptors are a mess. I did not find a way to cleanly generate the right structures from actual strings, so the definitions in individual keyboards' `config.h` are ugly as heck.
 - There are some random constants left so far, e.g. 5ms sleep between calling `keyboard_task` in `main.c`. There should be no such in `usb_main.c`. Everything is based on timers/interrupts/kernel scheduling (well except `keyboard_task`), so no periodically called things (again, except `keyboard_task`, which is just how TMK is designed).
 - It is easy to add some code for testing (e.g. blink LED, do stuff on button press, etc...) - just create another thread in `main.c`, it will run independently of the keyboard business.
+- Jumping to bootloader works, but it is not entirely pleasant, since it is very much MCU dependent. So, one needs to dig out the right address to jump to, and pass it to the compiler in the `Makefile`. Also, a patch to upstream ChibiOS is needed (supplied), because it `ResetHandler` needs adjusting.
 - The USB stack works pretty completely; however there are bits of other TMK stuff that are not done yet:
 
 ### Immediate todo
 
-- suspend / sleep led
+- suspend
+- sleep led
 
 ### Missing / not working (TMK vs ChibiOS bits)
 
 - eeprom / bootmagic (will be chip dependent)
-- bootloader jump (chip dependent)
 
 ### Tried with
 

tmk_core/protocol/chibios/usb_main.c

@@ -20,6 +20,11 @@
 
 #include "usb_main.h"
 
+#include "debug.h"
+#ifdef SLEEP_LED_ENABLE
+#include "sleep_led.h"
+#endif
+
 /* ---------------------------------------------------------
  *       Global interface variables and declarations
  * ---------------------------------------------------------
@@ -752,6 +757,7 @@ static const USBEndpointConfig nkro_ep_config = {
 static void usb_event_cb(USBDriver *usbp, usbevent_t event) {
   switch(event) {
   case USB_EVENT_RESET:
+    //TODO: from ISR! print("[R]");
     return;
 
   case USB_EVENT_ADDRESS:
@@ -778,9 +784,21 @@ static void usb_event_cb(USBDriver *usbp, usbevent_t event) {
     return;
 
   case USB_EVENT_SUSPEND:
+    //TODO: from ISR! print("[S]");
+    //TODO: signal suspend?
+#ifdef SLEEP_LED_ENABLE
+    sleep_led_enable();
+#endif /* SLEEP_LED_ENABLE */
     return;
 
   case USB_EVENT_WAKEUP:
+    //TODO: from ISR! print("[W]");
+    //TODO: suspend_wakeup_init();
+#ifdef SLEEP_LED_ENABLE
+    sleep_led_disable();
+    // NOTE: converters may not accept this
+    led_set(host_keyboard_leds());
+#endif /* SLEEP_LED_ENABLE */
     return;
 
   case USB_EVENT_STALLED: