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authorVegard Storheil Eriksen <zyp@jvnv.net>2013-10-26 14:49:39 +0200
committerVegard Storheil Eriksen <zyp@jvnv.net>2013-10-26 14:49:39 +0200
commita827babff1fc873c69ac94fd51dc440842a01699 (patch)
treed8561421b479b23fdf4a032628e01e7f414b7209 /bootloader.cpp
parent5126039a1ca9a7715a06761a714d3e4e9d158e11 (diff)
Added string descriptors.
Diffstat (limited to 'bootloader.cpp')
-rw-r--r--bootloader.cpp71
1 files changed, 70 insertions, 1 deletions
diff --git a/bootloader.cpp b/bootloader.cpp
index 3e0365e..e9faa63 100644
--- a/bootloader.cpp
+++ b/bootloader.cpp
@@ -41,7 +41,7 @@ auto report_desc = pack(
)
);
-auto dev_desc = device_desc(0x200, 0, 0, 0, 64, 0x1d50, 0x6084, 0, 0, 0, 0, 1);
+auto dev_desc = device_desc(0x200, 0, 0, 0, 64, 0x1d50, 0x6084, 0, 1, 2, 3, 1);
auto conf_desc = configuration_desc(1, 1, 0, 0xc0, 0,
// HID interface.
interface_desc(0, 0, 1, 0x03, 0x00, 0x00, 0,
@@ -180,6 +180,75 @@ class HID_bootloader : public USB_HID {
HID_bootloader usb_hid(usb, report_desc_p);
+uint32_t serial_num() {
+ uint32_t* uid = (uint32_t*)0x1ffff7ac;
+
+ return uid[0] * uid[1] * uid[2];
+}
+
+class USB_strings : public USB_class_driver {
+ private:
+ USB_generic& usb;
+
+ public:
+ USB_strings(USB_generic& usbd) : usb(usbd) {
+ usb.register_driver(this);
+ }
+
+ protected:
+ virtual SetupStatus handle_setup(uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, uint16_t wLength) {
+ // Get string descriptor.
+ if(bmRequestType == 0x80 && bRequest == 0x06 && (wValue & 0xff00) == 0x0300) {
+ const void* desc = nullptr;
+ uint16_t buf[9];
+
+ switch(wValue & 0xff) {
+ case 0:
+ desc = u"\u0304\u0409";
+ break;
+
+ case 1:
+ desc = u"\u0308zyp";
+ break;
+
+ case 2:
+ desc = u"\u0322arcin bootloader";
+ break;
+
+ case 3:
+ {
+ buf[0] = 0x0312;
+ uint32_t id = serial_num();
+ for(int i = 8; i > 0; i--) {
+ buf[i] = (id & 0xf) > 9 ? 'A' + (id & 0xf) - 0xa : '0' + (id & 0xf);
+ id >>= 4;
+ }
+ desc = buf;
+ }
+ break;
+ }
+
+ if(!desc) {
+ return SetupStatus::Unhandled;
+ }
+
+ uint8_t len = *(uint8_t*)desc;
+
+ if(len > wLength) {
+ len = wLength;
+ }
+
+ usb.write(0, (uint32_t*)desc, len);
+
+ return SetupStatus::Ok;
+ }
+
+ return SetupStatus::Unhandled;
+ }
+};
+
+USB_strings usb_strings(usb);
+
bool normal_boot() {
// Check if this was a reset-to-bootloader.
if(reset_reason == 0xb007) {