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Workaround corrupted USB packets when status shows ready too soon

main
PaulStoffregen 5 anni fa
parent
commit
9026659eaa
4 ha cambiato i file con 4 aggiunte e 0 eliminazioni
  1. +1
    -0
      teensy4/usb_joystick.c
  2. +1
    -0
      teensy4/usb_keyboard.c
  3. +1
    -0
      teensy4/usb_mouse.c
  4. +1
    -0
      teensy4/usb_touch.c

+ 1
- 0
teensy4/usb_joystick.c Vedi File

@@ -95,6 +95,7 @@ int usb_joystick_send()
if (!usb_configuration) return -1;
yield();
}
delayNanoseconds(30); // TODO: why is status ready too soon?
uint8_t *buffer = txbuffer + head * TX_BUFSIZE;
memcpy(buffer, usb_joystick_data, JOYSTICK_SIZE);
usb_prepare_transfer(xfer, buffer, JOYSTICK_SIZE, 0);

+ 1
- 0
teensy4/usb_keyboard.c Vedi File

@@ -544,6 +544,7 @@ static int usb_keyboard_transmit(int endpoint, const uint8_t *data, uint32_t len
if (!usb_configuration) return -1;
yield();
}
delayNanoseconds(30); // min req'd 11 ns, TODO: why is status ready too soon?
uint8_t *buffer = txbuffer + head * TX_BUFSIZE;
memcpy(buffer, data, len);
usb_prepare_transfer(xfer, buffer, len, 0);

+ 1
- 0
teensy4/usb_mouse.c Vedi File

@@ -159,6 +159,7 @@ static int usb_mouse_transmit(const uint8_t *data, uint32_t len)
if (!usb_configuration) return -1;
yield();
}
delayNanoseconds(30); // TODO: why is status ready too soon?
uint8_t *buffer = txbuffer + head * TX_BUFSIZE;
memcpy(buffer, data, len);
usb_prepare_transfer(xfer, buffer, len, 0);

+ 1
- 0
teensy4/usb_touch.c Vedi File

@@ -109,6 +109,7 @@ static int transmit(const uint8_t *data)
if (status & 0x68) {
// TODO: what if status has errors???
}
delayNanoseconds(30); // TODO: is this needed? (probably not)
uint8_t *buffer = txbuffer + head * TX_BUFSIZE;
memcpy(buffer, data, MULTITOUCH_SIZE);
usb_prepare_transfer(xfer, buffer, MULTITOUCH_SIZE, 0);

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