FiiO M3K/X1000: add USB support

This only required a minor patch to the usb-designware driver due
to DMA requiring physical addresses -- on the X1000, these differ
from virtual addresses so we have to do the usual conversion.

Both the mass storage and HID drivers work, but there are a few
issues so this can't be considered 100% stable yet.

- Mass storage might not be detected properly on insertion,
  and USB has to be replugged before it shows up
- HID driver may occasionally panic or hang the machine

Change-Id: Ia3ce7591d5928ec7cbca7953abfef01bdbd873ef

1 files changed, 10 insertions, 2 deletions

diff --git a/firmware/export/config/fiiom3k.h b/firmware/export/config/fiiom3k.h
index 115532dc39..eec1de6740 100644
--- a/firmware/export/config/fiiom3k.h
+++ b/firmware/export/config/fiiom3k.h
@@ -101,9 +101,17 @@
 #define BATTERY_CAPACITY_INC     0
 #define BATTERY_TYPES_COUNT      1
 
-/* USB is still TODO. */
+/* USB support */
 #ifndef SIMULATOR
-#define USB_NONE
+#define CONFIG_USBOTG USBOTG_DESIGNWARE
+#define USB_DW_TURNAROUND 5
+#define HAVE_USBSTACK
+#define USB_VENDOR_ID 0x2972
+#define USB_PRODUCT_ID 0x0003
+#define USB_DEVBSS_ATTR __attribute__((aligned(32)))
+#define HAVE_USB_POWER
+#define HAVE_USB_CHARGING_ENABLE
+#define HAVE_BOOTLOADER_USB_MODE
 #endif
 
 /* Rockbox capabilities */