105 lines
3.5 KiB
C
105 lines
3.5 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include <string.h>
|
|
|
|
#include "common-hal/usb_hid/Device.h"
|
|
|
|
#include "py/runtime.h"
|
|
#include "shared-bindings/microcontroller/__init__.h"
|
|
#include "shared-bindings/usb_hid/Device.h"
|
|
#include "genhdr/autogen_usb_descriptor.h"
|
|
|
|
#include "tick.h"
|
|
|
|
#include "usb/class/hid/device/hiddf_generic.h"
|
|
|
|
static uint32_t usb_hid_send_report(usb_hid_device_obj_t *self, uint8_t* report, uint8_t len) {
|
|
|
|
int32_t status;
|
|
|
|
// Don't get stuck if USB fails in some way; timeout after a while.
|
|
uint64_t end_ticks = ticks_ms + 2000;
|
|
|
|
while (ticks_ms < end_ticks) {
|
|
status = usb_d_ep_get_status(self->endpoint, NULL);
|
|
if (status == USB_BUSY) {
|
|
continue;
|
|
}
|
|
if (status == USB_OK) {
|
|
break;
|
|
}
|
|
// Some error. Give up.
|
|
return status;
|
|
}
|
|
|
|
// Copy the data only when endpoint is ready to send. The previous
|
|
// buffer load gets zero'd out when transaction completes, so if
|
|
// you copy before it's ready, only zeros will get sent.
|
|
|
|
// Prefix with a report id if one is supplied
|
|
if (self->report_id > 0) {
|
|
self->report_buffer[0] = self->report_id;
|
|
memcpy(&(self->report_buffer[1]), report, len);
|
|
} else {
|
|
memcpy(self->report_buffer, report, len);
|
|
}
|
|
|
|
return hiddf_generic_write(self->report_buffer, self->report_length);
|
|
}
|
|
|
|
void common_hal_usb_hid_device_send_report(usb_hid_device_obj_t *self, uint8_t* report, uint8_t len) {
|
|
if (len != self->report_length) {
|
|
mp_raise_ValueError_varg("Buffer incorrect size. Should be %d bytes.", self->report_length);
|
|
}
|
|
int32_t status = usb_hid_send_report(self, report, len);
|
|
if (status != ERR_NONE) {
|
|
mp_raise_msg(&mp_type_OSError, status == USB_BUSY ? "USB Busy" : "USB Error");
|
|
}
|
|
}
|
|
|
|
uint8_t common_hal_usb_hid_device_get_usage_page(usb_hid_device_obj_t *self) {
|
|
return self->usage_page;
|
|
}
|
|
|
|
uint8_t common_hal_usb_hid_device_get_usage(usb_hid_device_obj_t *self) {
|
|
return self->usage;
|
|
}
|
|
|
|
|
|
void usb_hid_init() {
|
|
}
|
|
|
|
void usb_hid_reset() {
|
|
// We don't actually reset. We just set a report that is empty to prevent
|
|
// long keypresses and such.
|
|
uint8_t report[USB_HID_MAX_REPORT_LENGTH] = {0};
|
|
|
|
for (size_t i = 0; i < USB_HID_NUM_DEVICES; i++) {
|
|
usb_hid_send_report(&usb_hid_devices[i], report, usb_hid_devices[i].report_length);
|
|
}
|
|
}
|