1306 lines
42 KiB
C
1306 lines
42 KiB
C
/**
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* Copyright (c) 2016 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <stdint.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include "nrf.h"
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#include "nrf_drv_usbd.h"
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#include "nrf_drv_clock.h"
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#include "nrf_gpio.h"
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#include "nrf_delay.h"
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#include "nrf_drv_power.h"
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#include "nrf_log.h"
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#include "nrf_log_ctrl.h"
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#include "nrf_log_default_backends.h"
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#include "app_timer.h"
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#include "app_error.h"
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#include "bsp.h"
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#include "bsp_cli.h"
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#include "nrf_cli.h"
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#include "nrf_cli_uart.h"
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/**
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* @brief CLI interface over UART
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*/
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NRF_CLI_UART_DEF(m_cli_uart_transport, 0, 64, 16);
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NRF_CLI_DEF(m_cli_uart,
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"uart_cli:~$ ",
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&m_cli_uart_transport.transport,
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'\r',
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4);
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static bool m_send_flag = 0;
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#define BTN_DATA_SEND 0
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#define BTN_DATA_KEY_RELEASE (bsp_event_t)(BSP_EVENT_KEY_LAST + 1)
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/**
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* @brief Button used to simulate mouse move
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*
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* Every button press would move the cursor one step in the square.
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*/
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#define BTN_MOUSE_MOVE BSP_BOARD_BUTTON_0
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/**
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* @brief Button for system OFF request
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*
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* This button would set the request for system OFF.
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*/
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#define BTN_SYSTEM_OFF BSP_BOARD_BUTTON_1
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/**
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* @brief Configuration status LED
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*
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* This LED would blink quickly (5 Hz) when device is not configured
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* or slowly (1 Hz) when configured and working properly.
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*/
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#define LED_USB_STATUS BSP_BOARD_LED_0
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/**
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* @brief Power detect LED
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*
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* The LED is ON when connection is detected on USB port.
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* It is turned off when connection is removed.
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*/
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#define LED_USB_POWER BSP_BOARD_LED_1
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/**
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* @brief Running LED
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*
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* LED that turns on when program is not sleeping
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*/
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#define LED_RUNNING BSP_BOARD_LED_2
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/**
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* @brief Active LED
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*
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* LED that turns on when program is not in system OFF
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*/
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#define LED_ACTIVE BSP_BOARD_LED_3
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/**
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* @brief Enable power USB detection
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*
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* Configure if example supports USB port connection
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*/
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#ifndef USBD_POWER_DETECTION
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#define USBD_POWER_DETECTION true
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#endif
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/**
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* @brief Startup delay
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*
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* Number of microseconds to start USBD after powering up.
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* Kind of port insert debouncing.
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*/
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#define STARTUP_DELAY 100
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/** Maximum size of the packed transfered by EP0 */
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#define EP0_MAXPACKETSIZE NRF_DRV_USBD_EPSIZE
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/** Device descriptor */
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#define USBD_DEVICE_DESCRIPTOR \
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0x12, /* bLength | size of descriptor */\
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0x01, /* bDescriptorType | descriptor type */\
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0x00, 0x02, /* bcdUSB | USB spec release (ver 2.0) */\
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0x00, /* bDeviceClass ¦ class code (each interface specifies class information) */\
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0x00, /* bDeviceSubClass ¦ device sub-class (must be set to 0 because class code is 0) */\
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0x00, /* bDeviceProtocol | device protocol (no class specific protocol) */\
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EP0_MAXPACKETSIZE, /* bMaxPacketSize0 | maximum packet size (64 bytes) */\
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0x15, 0x19, /* vendor ID (0x1915 Nordic) */\
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0x0A, 0x52, /* product ID (0x520A nRF52 HID mouse on nrf_drv) */\
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0x01, 0x01, /* bcdDevice | final device release number in BCD Format */\
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USBD_STRING_MANUFACTURER_IX, /* iManufacturer | index of manufacturer string */\
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USBD_STRING_PRODUCT_IX, /* iProduct | index of product string */\
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USBD_STRING_SERIAL_IX, /* iSerialNumber | Serial Number string */\
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0x01 /* bNumConfigurations | number of configurations */
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/** Configuration descriptor */
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#define DEVICE_SELF_POWERED 1
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#define REMOTE_WU 1
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#define USBD_CONFIG_DESCRIPTOR_SIZE 9
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#define USBD_CONFIG_DESCRIPTOR_FULL_SIZE (9 + (9 + 9 + 7))
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#define USBD_CONFIG_DESCRIPTOR \
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0x09, /* bLength | length of descriptor */\
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0x02, /* bDescriptorType | descriptor type (CONFIGURATION) */\
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USBD_CONFIG_DESCRIPTOR_FULL_SIZE, 0x00, /* wTotalLength | total length of descriptor(s) */\
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0x01, /* bNumInterfaces */\
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0x01, /* bConfigurationValue */\
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0x00, /* index of string Configuration | configuration string index (not supported) */\
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0x80| (((DEVICE_SELF_POWERED) ? 1U:0U)<<6) | (((REMOTE_WU) ? 1U:0U)<<5), /* bmAttributes */\
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49 /* maximum power in steps of 2mA (98mA) */
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#define USBD_INTERFACE0_DESCRIPTOR \
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0x09, /* bLength */\
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0x04, /* bDescriptorType | descriptor type (INTERFACE) */\
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0x00, /* bInterfaceNumber */\
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0x00, /* bAlternateSetting */\
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0x01, /* bNumEndpoints | number of endpoints (1) */\
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0x03, /* bInterfaceClass | interface class (3..defined by USB spec: HID) */\
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0x00, /* bInterfaceSubClass |interface sub-class (0.. no boot interface) */\
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0x02, /* bInterfaceProtocol | interface protocol (1..defined by USB spec: mouse) */\
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0x00 /* interface string index (not supported) */
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/**
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* HID Table must normally be between Interface and EndPoint Descriptor
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* as written in HID spec§7.1 but it doesn't work with OSR2.1
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*/
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#define USBD_HID0_DESCRIPTOR \
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0x09, /* bLength | length of descriptor (9 bytes) */\
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0x21, /* bHIDDescriptor | descriptor type (HID) */\
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0x11, 0x01, /* HID wBcdHID | Spec version 01.11 */\
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0x00, /* bCountryCode | HW Target country */\
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0x01, /* bNumDescriptors | Number of HID class descriptors to follow */\
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0x22, /* bDescriptorType | Report descriptor type is 0x22 (report) */\
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(uint8_t)(USBD_MOUSE_REPORT_DESCRIPTOR_SIZE), /* Total length of Report descr., low byte */ \
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(uint8_t)(USBD_MOUSE_REPORT_DESCRIPTOR_SIZE / 256) /* Total length of Report descr., high byte */
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#define USBD_ENDPOINT1_DESCRIPTOR \
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0x07, /* bLength | length of descriptor (7 bytes) */\
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0x05, /* bDescriptorType | descriptor type (ENDPOINT) */\
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0x81, /* bEndpointAddress | endpoint address (IN endpoint, endpoint 1) */\
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0x03, /* bmAttributes | endpoint attributes (interrupt) */\
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0x08,0x00, /* bMaxPacketSizeLowByte,bMaxPacketSizeHighByte | maximum packet size (8 bytes) */\
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0x08 /* bInterval | polling interval (10ms) */
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/**
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* String config descriptor
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*/
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#define USBD_STRING_LANG_IX 0x00
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#define USBD_STRING_LANG \
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0x04, /* length of descriptor */\
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0x03, /* descriptor type */\
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0x09, /* */\
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0x04 /* Supported LangID = 0x0409 (US-English) */
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#define USBD_STRING_MANUFACTURER_IX 0x01
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#define USBD_STRING_MANUFACTURER \
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42, /* length of descriptor (? bytes) */\
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0x03, /* descriptor type */\
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'N', 0x00, /* Define Unicode String "Nordic Semiconductor */\
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'o', 0x00, \
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'r', 0x00, \
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'd', 0x00, \
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'i', 0x00, \
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'c', 0x00, \
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' ', 0x00, \
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'S', 0x00, \
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'e', 0x00, \
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'm', 0x00, \
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'i', 0x00, \
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'c', 0x00, \
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'o', 0x00, \
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'n', 0x00, \
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'd', 0x00, \
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'u', 0x00, \
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'c', 0x00, \
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't', 0x00, \
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'o', 0x00, \
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'r', 0x00
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#define USBD_STRING_PRODUCT_IX 0x02
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#define USBD_STRING_PRODUCT \
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72, /* length of descriptor (? bytes) */\
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0x03, /* descriptor type */\
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'n', 0x00, /* generic unicode string for all devices */\
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'R', 0x00, \
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'F', 0x00, \
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'5', 0x00, \
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'2', 0x00, \
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' ', 0x00, \
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'U', 0x00, \
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'S', 0x00, \
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'B', 0x00, \
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' ', 0x00, \
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'H', 0x00, \
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'I', 0x00, \
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'D', 0x00, \
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' ', 0x00, \
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'm', 0x00, \
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'o', 0x00, \
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'u', 0x00, \
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's', 0x00, \
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'e', 0x00, \
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' ', 0x00, \
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'o', 0x00, \
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'n', 0x00, \
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' ', 0x00, \
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'n', 0x00, \
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'r', 0x00, \
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'f', 0x00, \
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'_', 0x00, \
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'd', 0x00, \
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'r', 0x00, \
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'v', 0x00, \
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' ', 0x00, \
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'D', 0x00, \
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'e', 0x00, \
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'm', 0x00, \
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'o', 0x00, \
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#define USBD_STRING_SERIAL_IX 0x00
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#define USBD_MOUSE_REPORT_DESCRIPTOR_SIZE 46
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#define USBD_MOUSE_REPORT_DESCRIPTOR \
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0x05, 0x01, /* usage page (generic desktop). Global item, applies to all subsequent items */\
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0x09, 0x02, /* usage (mouse). Local item */\
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0xA1, 0x01, /* collection (application) */\
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0x09, 0x01, /* usage (pointer) */\
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0xA1, 0x00, /* collection (physical) */\
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0x05, 0x09, /* usage page (buttons). Global item, applies to all subsequent items */\
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0x19, 0x01, /* usage minimum (1) */\
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0x29, 0x08, /* usage maximum (8) */\
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0x15, 0x00, /* logical minimum (0) */\
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0x25, 0x01, /* logical maximum (1) */\
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0x95, 0x08, /* report count (8) */\
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0x75, 0x01, /* report size (1) */\
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0x81, 0x02, /* input (data, var, abs) */\
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0x05, 0x01, /* usage page (generic desktop). Global item, applies to all subsequent items */\
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0x15, 0x81, /* logical minimum (-127) */\
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0x25, 0x7F, /* logical maximum (127) */\
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0x75, 0x08, /* report size (8) */\
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0x09, 0x30, /* usage (X) */\
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0x09, 0x31, /* usage (Y) */\
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0x09, 0x38, /* usage wheel */\
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0x95, 0x03, /* report count (3) */\
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0x81, 0x06, /* input (3 position bytes X, Y & roller) */\
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0xC0, /* end collection */\
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0xC0 /* End Collection */
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static const uint8_t get_descriptor_device[] = {
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USBD_DEVICE_DESCRIPTOR
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};
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static const uint8_t get_descriptor_configuration[] = {
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USBD_CONFIG_DESCRIPTOR,
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USBD_INTERFACE0_DESCRIPTOR,
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USBD_HID0_DESCRIPTOR,
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USBD_ENDPOINT1_DESCRIPTOR
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};
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static const uint8_t get_descriptor_string_lang[] = {
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USBD_STRING_LANG
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};
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static const uint8_t get_descriptor_string_manuf[] = {
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USBD_STRING_MANUFACTURER
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};
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static const uint8_t get_descriptor_string_prod[] = {
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USBD_STRING_PRODUCT
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};
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static const uint8_t get_descriptor_report_interface_0[] = {
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USBD_MOUSE_REPORT_DESCRIPTOR
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};
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static const uint8_t get_config_resp_configured[] = {1};
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static const uint8_t get_config_resp_unconfigured[] = {0};
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static const uint8_t get_status_device_resp_nrwu[] = {
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((DEVICE_SELF_POWERED) ? 1 : 0), //LSB first: self-powered, no remoteWk
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0
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};
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static const uint8_t get_status_device_resp_rwu[] = {
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((DEVICE_SELF_POWERED) ? 1 : 0) | 2, //LSB first: self-powered, remoteWk
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0
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};
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static const uint8_t get_status_interface_resp[] = {0, 0};
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static const uint8_t get_status_ep_halted_resp[] = {1, 0};
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static const uint8_t get_status_ep_active_resp[] = {0, 0};
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#define GET_CONFIG_DESC_SIZE sizeof(get_descriptor_configuration)
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#define GET_INTERFACE_DESC_SIZE 9
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#define GET_HID_DESC_SIZE 9
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#define GET_ENDPOINT_DESC_SIZE 7
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#define get_descriptor_interface_0 \
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&get_descriptor_configuration[9]
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#define get_descriptor_hid_0 \
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&get_descriptor_configuration[9+GET_INTERFACE_DESC_SIZE]
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#define get_descriptor_endpoint_1 \
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&get_descriptor_configuration[9+GET_INTERFACE_DESC_SIZE+GET_HID_DESC_SIZE]
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/**
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* @brief USB configured flag
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*
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* The flag that is used to mark the fact that USB is configured and ready
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* to transmit data
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*/
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static volatile bool m_usbd_configured = false;
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/**
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* @brief USB suspended
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*
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* The flag that is used to mark the fact that USB is suspended and requires wake up
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* if new data is available.
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*
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* @note This variable is changed from the main loop.
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*/
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static bool m_usbd_suspended = false;
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/**
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* @brief Mark the fact if remote wake up is enabled
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*
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* The internal flag that marks if host enabled the remote wake up functionality in this device.
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*/
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static
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#if REMOTE_WU
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volatile // Disallow optimization only if Remote wakeup is enabled
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#endif
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bool m_usbd_rwu_enabled = false;
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/**
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* @brief Current mouse position
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*
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* The index of current mouse position that would be changed to real offset.
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*/
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static volatile uint8_t m_mouse_position = 0;
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/**
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* @brief The flag for mouse position send pending
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*
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* Setting this flag means that USB endpoint is busy by sending
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* last mouse position.
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*/
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static volatile bool m_send_mouse_position = false;
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/**
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* @brief The requested suspend state
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*
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* The currently requested suspend state based on the events
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* received from USBD library.
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* If the value here is different than the @ref m_usbd_suspended
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* the state changing would be processed inside main loop.
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*/
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static volatile bool m_usbd_suspend_state_req = false;
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/**
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* @brief System OFF request flag
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*
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* This flag is used in button event processing and marks the fact that
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* system OFF should be activated from main loop.
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*/
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static volatile bool m_system_off_req = false;
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/**
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* @brief Setup all the endpoints for selected configuration
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*
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* Function sets all the endpoints for specific configuration.
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*
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* @note
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* Setting the configuration index 0 means technically disabling the HID interface.
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* Such configuration should be set when device is starting or USB reset is detected.
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*
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* @param index Configuration index
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*
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* @retval NRF_ERROR_INVALID_PARAM Invalid configuration
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* @retval NRF_SUCCESS Configuration successfully set
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*/
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static ret_code_t ep_configuration(uint8_t index)
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{
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if ( index == 1 )
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{
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nrf_drv_usbd_ep_dtoggle_clear(NRF_DRV_USBD_EPIN1);
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nrf_drv_usbd_ep_stall_clear(NRF_DRV_USBD_EPIN1);
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nrf_drv_usbd_ep_enable(NRF_DRV_USBD_EPIN1);
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m_usbd_configured = true;
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nrf_drv_usbd_setup_clear();
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}
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else if ( index == 0 )
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{
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nrf_drv_usbd_ep_disable(NRF_DRV_USBD_EPIN1);
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m_usbd_configured = false;
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nrf_drv_usbd_setup_clear();
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}
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else
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{
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return NRF_ERROR_INVALID_PARAM;
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}
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return NRF_SUCCESS;
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}
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/**
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* @name Processing setup requests
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*
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* @{
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*/
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/**
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* @brief Respond on ep 0
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*
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* Auxiliary function for sending respond on endpoint 0
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* @param[in] p_setup Pointer to setup data from current setup request.
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|
* It would be used to calculate the size of data to send.
|
|
* @param[in] p_data Pointer to the data to send.
|
|
* @param[in] size Number of bytes to send.
|
|
* @note Data pointed by p_data has to be available till the USBD_EVT_BUFREADY event.
|
|
*/
|
|
static void respond_setup_data(
|
|
nrf_drv_usbd_setup_t const * const p_setup,
|
|
void const * p_data, size_t size)
|
|
{
|
|
/* Check the size against required response size */
|
|
if (size > p_setup->wLength)
|
|
{
|
|
size = p_setup->wLength;
|
|
}
|
|
ret_code_t ret;
|
|
nrf_drv_usbd_transfer_t transfer =
|
|
{
|
|
.p_data = {.tx = p_data},
|
|
.size = size
|
|
};
|
|
ret = nrf_drv_usbd_ep_transfer(NRF_DRV_USBD_EPIN0, &transfer);
|
|
if (ret != NRF_SUCCESS)
|
|
{
|
|
NRF_LOG_ERROR("Transfer starting failed: %d", (uint32_t)ret);
|
|
}
|
|
ASSERT(ret == NRF_SUCCESS);
|
|
UNUSED_VARIABLE(ret);
|
|
}
|
|
|
|
|
|
/** React to GetStatus */
|
|
static void usbd_setup_GetStatus(nrf_drv_usbd_setup_t const * const p_setup)
|
|
{
|
|
switch (p_setup->bmRequestType)
|
|
{
|
|
case 0x80: // Device
|
|
if (((p_setup->wIndex) & 0xff) == 0)
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
m_usbd_rwu_enabled ? get_status_device_resp_rwu : get_status_device_resp_nrwu,
|
|
sizeof(get_status_device_resp_nrwu));
|
|
return;
|
|
}
|
|
break;
|
|
case 0x81: // Interface
|
|
if (m_usbd_configured) // Respond only if configured
|
|
{
|
|
if (((p_setup->wIndex) & 0xff) == 0) // Only interface 0 supported
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_status_interface_resp,
|
|
sizeof(get_status_interface_resp));
|
|
return;
|
|
}
|
|
}
|
|
break;
|
|
case 0x82: // Endpoint
|
|
if (((p_setup->wIndex) & 0xff) == 0) // Endpoint 0
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_status_ep_active_resp,
|
|
sizeof(get_status_ep_active_resp));
|
|
return;
|
|
}
|
|
if (m_usbd_configured) // Other endpoints responds if configured
|
|
{
|
|
if (((p_setup->wIndex) & 0xff) == NRF_DRV_USBD_EPIN1)
|
|
{
|
|
if (nrf_drv_usbd_ep_stall_check(NRF_DRV_USBD_EPIN1))
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_status_ep_halted_resp,
|
|
sizeof(get_status_ep_halted_resp));
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_status_ep_active_resp,
|
|
sizeof(get_status_ep_active_resp));
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break; // Just go to stall
|
|
}
|
|
NRF_LOG_ERROR("Unknown status: 0x%2x", p_setup->bmRequestType);
|
|
nrf_drv_usbd_setup_stall();
|
|
}
|
|
|
|
static void usbd_setup_ClearFeature(nrf_drv_usbd_setup_t const * const p_setup)
|
|
{
|
|
if ((p_setup->bmRequestType) == 0x02) // standard request, recipient=endpoint
|
|
{
|
|
if ((p_setup->wValue) == 0)
|
|
{
|
|
if ((p_setup->wIndex) == NRF_DRV_USBD_EPIN1)
|
|
{
|
|
nrf_drv_usbd_ep_stall_clear(NRF_DRV_USBD_EPIN1);
|
|
nrf_drv_usbd_setup_clear();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
else if ((p_setup->bmRequestType) == 0x0) // standard request, recipient=device
|
|
{
|
|
if (REMOTE_WU)
|
|
{
|
|
if ((p_setup->wValue) == 1) // Feature Wakeup
|
|
{
|
|
m_usbd_rwu_enabled = false;
|
|
nrf_drv_usbd_setup_clear();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
NRF_LOG_ERROR("Unknown feature to clear");
|
|
nrf_drv_usbd_setup_stall();
|
|
}
|
|
|
|
static void usbd_setup_SetFeature(nrf_drv_usbd_setup_t const * const p_setup)
|
|
{
|
|
if ((p_setup->bmRequestType) == 0x02) // standard request, recipient=endpoint
|
|
{
|
|
if ((p_setup->wValue) == 0) // Feature HALT
|
|
{
|
|
if ((p_setup->wIndex) == NRF_DRV_USBD_EPIN1)
|
|
{
|
|
nrf_drv_usbd_ep_stall(NRF_DRV_USBD_EPIN1);
|
|
nrf_drv_usbd_setup_clear();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
else if ((p_setup->bmRequestType) == 0x0) // standard request, recipient=device
|
|
{
|
|
if (REMOTE_WU)
|
|
{
|
|
if ((p_setup->wValue) == 1) // Feature Wakeup
|
|
{
|
|
m_usbd_rwu_enabled = true;
|
|
nrf_drv_usbd_setup_clear();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
NRF_LOG_ERROR("Unknown feature to set");
|
|
nrf_drv_usbd_setup_stall();
|
|
}
|
|
|
|
static void usbd_setup_GetDescriptor(nrf_drv_usbd_setup_t const * const p_setup)
|
|
{
|
|
//determine which descriptor has been asked for
|
|
switch ((p_setup->wValue) >> 8)
|
|
{
|
|
case 1: // Device
|
|
if ((p_setup->bmRequestType) == 0x80)
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_descriptor_device,
|
|
sizeof(get_descriptor_device));
|
|
return;
|
|
}
|
|
break;
|
|
case 2: // Configuration
|
|
if ((p_setup->bmRequestType) == 0x80)
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_descriptor_configuration,
|
|
GET_CONFIG_DESC_SIZE);
|
|
return;
|
|
}
|
|
break;
|
|
case 3: // String
|
|
if ((p_setup->bmRequestType) == 0x80)
|
|
{
|
|
// Select the string
|
|
switch ((p_setup->wValue) & 0xFF)
|
|
{
|
|
case USBD_STRING_LANG_IX:
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_descriptor_string_lang,
|
|
sizeof(get_descriptor_string_lang));
|
|
return;
|
|
case USBD_STRING_MANUFACTURER_IX:
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_descriptor_string_manuf,
|
|
sizeof(get_descriptor_string_manuf));
|
|
return;
|
|
case USBD_STRING_PRODUCT_IX:
|
|
respond_setup_data(p_setup,
|
|
get_descriptor_string_prod,
|
|
sizeof(get_descriptor_string_prod));
|
|
return;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case 4: // Interface
|
|
if ((p_setup->bmRequestType) == 0x80)
|
|
{
|
|
// Which interface?
|
|
if ((((p_setup->wValue) & 0xFF) == 0))
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_descriptor_interface_0,
|
|
GET_INTERFACE_DESC_SIZE);
|
|
return;
|
|
}
|
|
}
|
|
break;
|
|
case 5: // Endpoint
|
|
if ((p_setup->bmRequestType) == 0x80)
|
|
{
|
|
// Which endpoint?
|
|
if (((p_setup->wValue) & 0xFF) == 1)
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_descriptor_endpoint_1,
|
|
GET_ENDPOINT_DESC_SIZE);
|
|
return;
|
|
}
|
|
}
|
|
break;
|
|
case 0x21: // HID
|
|
if ((p_setup->bmRequestType) == 0x81)
|
|
{
|
|
// Which interface
|
|
if (((p_setup->wValue) & 0xFF) == 0)
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_descriptor_hid_0,
|
|
GET_HID_DESC_SIZE);
|
|
return;
|
|
}
|
|
}
|
|
break;
|
|
case 0x22: // HID report
|
|
if ((p_setup->bmRequestType) == 0x81)
|
|
{
|
|
// Which interface?
|
|
if (((p_setup->wValue) & 0xFF) == 0)
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_descriptor_report_interface_0,
|
|
sizeof(get_descriptor_report_interface_0));
|
|
return;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break; // Not supported - go to stall
|
|
}
|
|
|
|
NRF_LOG_ERROR("Unknown descriptor requested: 0x%2x, type: 0x%2x or value: 0x%2x",
|
|
p_setup->wValue >> 8,
|
|
p_setup->bmRequestType,
|
|
p_setup->wValue & 0xFF);
|
|
nrf_drv_usbd_setup_stall();
|
|
}
|
|
|
|
static void usbd_setup_GetConfig(nrf_drv_usbd_setup_t const * const p_setup)
|
|
{
|
|
if (m_usbd_configured)
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_config_resp_configured,
|
|
sizeof(get_config_resp_configured));
|
|
}
|
|
else
|
|
{
|
|
respond_setup_data(
|
|
p_setup,
|
|
get_config_resp_unconfigured,
|
|
sizeof(get_config_resp_unconfigured));
|
|
}
|
|
}
|
|
|
|
static void usbd_setup_SetConfig(nrf_drv_usbd_setup_t const * const p_setup)
|
|
{
|
|
if ((p_setup->bmRequestType) == 0x00)
|
|
{
|
|
// accept only 0 and 1
|
|
if (((p_setup->wIndex) == 0) && ((p_setup->wLength) == 0) &&
|
|
((p_setup->wValue) <= UINT8_MAX))
|
|
{
|
|
if (NRF_SUCCESS == ep_configuration((uint8_t)(p_setup->wValue)))
|
|
{
|
|
nrf_drv_usbd_setup_clear();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
NRF_LOG_ERROR("Wrong configuration: Index: 0x%2x, Value: 0x%2x.",
|
|
p_setup->wIndex,
|
|
p_setup->wValue);
|
|
nrf_drv_usbd_setup_stall();
|
|
}
|
|
|
|
static void usbd_setup_SetIdle(nrf_drv_usbd_setup_t const * const p_setup)
|
|
{
|
|
if (p_setup->bmRequestType == 0x21)
|
|
{
|
|
//accept any value
|
|
nrf_drv_usbd_setup_clear();
|
|
return;
|
|
}
|
|
NRF_LOG_ERROR("Set Idle wrong type: 0x%2x.", p_setup->bmRequestType);
|
|
nrf_drv_usbd_setup_stall();
|
|
}
|
|
|
|
static void usbd_setup_SetInterface(
|
|
nrf_drv_usbd_setup_t const * const p_setup)
|
|
{
|
|
//no alternate setting is supported - STALL always
|
|
NRF_LOG_ERROR("No alternate interfaces supported.");
|
|
nrf_drv_usbd_setup_stall();
|
|
}
|
|
|
|
static void usbd_setup_SetProtocol(
|
|
nrf_drv_usbd_setup_t const * const p_setup)
|
|
{
|
|
if (p_setup->bmRequestType == 0x21)
|
|
{
|
|
//accept any value
|
|
nrf_drv_usbd_setup_clear();
|
|
return;
|
|
}
|
|
NRF_LOG_ERROR("Set Protocol wrong type: 0x%2x.", p_setup->bmRequestType);
|
|
nrf_drv_usbd_setup_stall();
|
|
}
|
|
|
|
/** @} */ /* End of processing setup requests functions */
|
|
|
|
|
|
static void usbd_event_handler(nrf_drv_usbd_evt_t const * const p_event)
|
|
{
|
|
switch (p_event->type)
|
|
{
|
|
case NRF_DRV_USBD_EVT_SUSPEND:
|
|
NRF_LOG_INFO("SUSPEND state detected");
|
|
m_usbd_suspend_state_req = true;
|
|
break;
|
|
case NRF_DRV_USBD_EVT_RESUME:
|
|
NRF_LOG_INFO("RESUMING from suspend");
|
|
m_usbd_suspend_state_req = false;
|
|
break;
|
|
case NRF_DRV_USBD_EVT_WUREQ:
|
|
NRF_LOG_INFO("RemoteWU initiated");
|
|
m_usbd_suspend_state_req = false;
|
|
break;
|
|
case NRF_DRV_USBD_EVT_RESET:
|
|
{
|
|
ret_code_t ret = ep_configuration(0);
|
|
ASSERT(ret == NRF_SUCCESS);
|
|
UNUSED_VARIABLE(ret);
|
|
m_usbd_suspend_state_req = false;
|
|
break;
|
|
}
|
|
case NRF_DRV_USBD_EVT_SOF:
|
|
{
|
|
static uint32_t cycle = 0;
|
|
++cycle;
|
|
if ((cycle % (m_usbd_configured ? 500 : 100)) == 0)
|
|
{
|
|
bsp_board_led_invert(LED_USB_STATUS);
|
|
}
|
|
break;
|
|
}
|
|
case NRF_DRV_USBD_EVT_EPTRANSFER:
|
|
if (NRF_DRV_USBD_EPIN1 == p_event->data.eptransfer.ep)
|
|
{
|
|
m_send_mouse_position = false;
|
|
}
|
|
else
|
|
if (NRF_DRV_USBD_EPIN0 == p_event->data.eptransfer.ep)
|
|
{
|
|
if (NRF_USBD_EP_OK == p_event->data.eptransfer.status)
|
|
{
|
|
/* Transfer ok - allow status stage */
|
|
nrf_drv_usbd_setup_clear();
|
|
}
|
|
else if (NRF_USBD_EP_ABORTED == p_event->data.eptransfer.status)
|
|
{
|
|
/* Just ignore */
|
|
NRF_LOG_INFO("Transfer aborted event on EPIN0");
|
|
}
|
|
else
|
|
{
|
|
NRF_LOG_ERROR("Transfer failed on EPIN0: %d", p_event->data.eptransfer.status);
|
|
nrf_drv_usbd_setup_stall();
|
|
}
|
|
}
|
|
else
|
|
if (NRF_DRV_USBD_EPOUT0 == p_event->data.eptransfer.ep)
|
|
{
|
|
/* NOTE: No EPOUT0 data transfers are used.
|
|
* The code is here as a pattern how to support such a transfer. */
|
|
if (NRF_USBD_EP_OK == p_event->data.eptransfer.status)
|
|
{
|
|
/* Transfer ok - allow status stage */
|
|
nrf_drv_usbd_setup_clear();
|
|
}
|
|
else if (NRF_USBD_EP_ABORTED == p_event->data.eptransfer.status)
|
|
{
|
|
/* Just ignore */
|
|
NRF_LOG_INFO("Transfer aborted event on EPOUT0");
|
|
}
|
|
else
|
|
{
|
|
NRF_LOG_ERROR("Transfer failed on EPOUT0: %d", p_event->data.eptransfer.status);
|
|
nrf_drv_usbd_setup_stall();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Nothing to do */
|
|
}
|
|
break;
|
|
case NRF_DRV_USBD_EVT_SETUP:
|
|
{
|
|
nrf_drv_usbd_setup_t setup;
|
|
nrf_drv_usbd_setup_get(&setup);
|
|
switch (setup.bRequest)
|
|
{
|
|
case 0x00: // GetStatus
|
|
usbd_setup_GetStatus(&setup);
|
|
break;
|
|
case 0x01: // CleartFeature
|
|
usbd_setup_ClearFeature(&setup);
|
|
break;
|
|
case 0x03: // SetFeature
|
|
usbd_setup_SetFeature(&setup);
|
|
break;
|
|
case 0x05: // SetAddress
|
|
//nothing to do, handled by hardware; but don't STALL
|
|
break;
|
|
case 0x06: // GetDescriptor
|
|
usbd_setup_GetDescriptor(&setup);
|
|
break;
|
|
case 0x08: // GetConfig
|
|
usbd_setup_GetConfig(&setup);
|
|
break;
|
|
case 0x09: // SetConfig
|
|
usbd_setup_SetConfig(&setup);
|
|
break;
|
|
//HID class
|
|
case 0x0A: // SetIdle
|
|
usbd_setup_SetIdle(&setup);
|
|
break;
|
|
case 0x0B: // SetProtocol or SetInterface
|
|
if (setup.bmRequestType == 0x01) // standard request, recipient=interface
|
|
{
|
|
usbd_setup_SetInterface(&setup);
|
|
}
|
|
else if (setup.bmRequestType == 0x21) // class request, recipient=interface
|
|
{
|
|
usbd_setup_SetProtocol(&setup);
|
|
}
|
|
else
|
|
{
|
|
NRF_LOG_ERROR("Command 0xB. Unknown request: 0x%2x", setup.bmRequestType);
|
|
nrf_drv_usbd_setup_stall();
|
|
}
|
|
break;
|
|
default:
|
|
NRF_LOG_ERROR("Unknown request: 0x%2x", setup.bRequest);
|
|
nrf_drv_usbd_setup_stall();
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
static void move_mouse_pointer(void)
|
|
{
|
|
static uint32_t databuffer;
|
|
|
|
if (!m_usbd_configured)
|
|
return;
|
|
if (!m_send_mouse_position)
|
|
{
|
|
switch (m_mouse_position & 0x3)
|
|
{
|
|
case 0:
|
|
/* X = 10, rest all are unchanged */
|
|
databuffer = 0x00000A00;
|
|
break;
|
|
case 1:
|
|
/* Y = 10, rest all are unchanged */
|
|
databuffer = 0x000A0000;
|
|
break;
|
|
case 2:
|
|
/* X = -10, rest all are unchanged */
|
|
databuffer = 0x0000F600;
|
|
break;
|
|
case 3:
|
|
/* Y = -10, rest all are unchanged */
|
|
databuffer = 0x00F60000;
|
|
break;
|
|
}
|
|
m_mouse_position++;
|
|
|
|
/* Send data */
|
|
static const nrf_drv_usbd_transfer_t transfer =
|
|
{
|
|
.p_data = {.tx = &databuffer},
|
|
.size = sizeof(databuffer)
|
|
};
|
|
m_send_mouse_position = true;
|
|
UNUSED_RETURN_VALUE(nrf_drv_usbd_ep_transfer(
|
|
NRF_DRV_USBD_EPIN1,
|
|
&transfer));
|
|
}
|
|
}
|
|
|
|
static void power_usb_event_handler(nrf_drv_power_usb_evt_t event)
|
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{
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switch (event)
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{
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case NRF_DRV_POWER_USB_EVT_DETECTED:
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NRF_LOG_INFO("USB power detected");
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if (!nrf_drv_usbd_is_enabled())
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{
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nrf_drv_usbd_enable();
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}
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break;
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case NRF_DRV_POWER_USB_EVT_REMOVED:
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NRF_LOG_INFO("USB power removed");
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m_usbd_configured = false;
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m_send_mouse_position = false;
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if (nrf_drv_usbd_is_started())
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{
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nrf_drv_usbd_stop();
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}
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if (nrf_drv_usbd_is_enabled())
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{
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nrf_drv_usbd_disable();
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}
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/* Turn OFF LEDs */
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bsp_board_led_off(LED_USB_STATUS);
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bsp_board_led_off(LED_USB_POWER);
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break;
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case NRF_DRV_POWER_USB_EVT_READY:
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NRF_LOG_INFO("USB ready");
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bsp_board_led_on(LED_USB_POWER);
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if (!nrf_drv_usbd_is_started())
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{
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nrf_drv_usbd_start(true);
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}
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break;
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default:
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ASSERT(false);
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}
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}
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static void bsp_evt_handler(bsp_event_t evt)
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{
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switch ((unsigned int)evt)
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{
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case BSP_EVENT_SYSOFF:
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{
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m_system_off_req = true;
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break;
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}
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case CONCAT_2(BSP_EVENT_KEY_, BTN_DATA_SEND):
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{
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m_send_flag = 1;
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break;
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}
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case BTN_DATA_KEY_RELEASE:
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{
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m_send_flag = 0;
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break;
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}
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default:
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return;
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}
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}
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static void init_power_clock(void)
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{
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ret_code_t ret;
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/* Initializing power and clock */
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ret = nrf_drv_clock_init();
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APP_ERROR_CHECK(ret);
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ret = nrf_drv_power_init(NULL);
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APP_ERROR_CHECK(ret);
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nrf_drv_clock_hfclk_request(NULL);
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nrf_drv_clock_lfclk_request(NULL);
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while (!(nrf_drv_clock_hfclk_is_running() &&
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nrf_drv_clock_lfclk_is_running()))
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{
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/* Just waiting */
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}
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ret = app_timer_init();
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APP_ERROR_CHECK(ret);
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/* Avoid warnings if assertion is disabled */
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UNUSED_VARIABLE(ret);
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}
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static void init_bsp(void)
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{
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ret_code_t ret;
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ret = bsp_init(BSP_INIT_BUTTONS, bsp_evt_handler);
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APP_ERROR_CHECK(ret);
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ret = bsp_event_to_button_action_assign(
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BTN_SYSTEM_OFF,
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BSP_BUTTON_ACTION_RELEASE,
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BSP_EVENT_SYSOFF);
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APP_ERROR_CHECK(ret);
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ret = bsp_event_to_button_action_assign(BTN_DATA_SEND,
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BSP_BUTTON_ACTION_RELEASE,
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BTN_DATA_KEY_RELEASE);
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APP_ERROR_CHECK(ret);
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/* Avoid warnings if assertion is disabled */
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UNUSED_VARIABLE(ret);
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}
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static void init_cli(void)
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{
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ret_code_t ret;
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ret = bsp_cli_init(bsp_evt_handler);
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APP_ERROR_CHECK(ret);
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nrf_drv_uart_config_t uart_config = NRF_DRV_UART_DEFAULT_CONFIG;
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uart_config.pseltxd = TX_PIN_NUMBER;
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uart_config.pselrxd = RX_PIN_NUMBER;
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uart_config.hwfc = NRF_UART_HWFC_DISABLED;
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ret = nrf_cli_init(&m_cli_uart, &uart_config, true, true, NRF_LOG_SEVERITY_INFO);
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APP_ERROR_CHECK(ret);
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ret = nrf_cli_start(&m_cli_uart);
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APP_ERROR_CHECK(ret);
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}
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static void log_resetreason(void)
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{
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/* Reset reason */
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uint32_t rr = nrf_power_resetreas_get();
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NRF_LOG_INFO("Reset reasons:");
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if (0 == rr)
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{
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NRF_LOG_INFO("- NONE");
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}
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if (0 != (rr & NRF_POWER_RESETREAS_RESETPIN_MASK))
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{
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NRF_LOG_INFO("- RESETPIN");
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}
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if (0 != (rr & NRF_POWER_RESETREAS_DOG_MASK ))
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{
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NRF_LOG_INFO("- DOG");
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}
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if (0 != (rr & NRF_POWER_RESETREAS_SREQ_MASK ))
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{
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NRF_LOG_INFO("- SREQ");
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}
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if (0 != (rr & NRF_POWER_RESETREAS_LOCKUP_MASK ))
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{
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NRF_LOG_INFO("- LOCKUP");
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}
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if (0 != (rr & NRF_POWER_RESETREAS_OFF_MASK ))
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{
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NRF_LOG_INFO("- OFF");
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}
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#if defined(NRF_POWER_RESETREAS_LPCOMP_MASK)
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if (0 != (rr & NRF_POWER_RESETREAS_LPCOMP_MASK ))
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{
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NRF_LOG_INFO("- LPCOMP");
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}
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#endif
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if (0 != (rr & NRF_POWER_RESETREAS_DIF_MASK ))
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{
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NRF_LOG_INFO("- DIF");
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}
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#if defined(NRF_POWER_RESETREAS_NFC_MASK)
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if (0 != (rr & NRF_POWER_RESETREAS_NFC_MASK ))
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{
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NRF_LOG_INFO("- NFC");
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}
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#endif
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if (0 != (rr & NRF_POWER_RESETREAS_VBUS_MASK ))
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{
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NRF_LOG_INFO("- VBUS");
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}
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}
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int main(void)
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{
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ret_code_t ret;
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UNUSED_RETURN_VALUE(NRF_LOG_INIT(NULL));
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init_power_clock();
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init_bsp();
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init_cli();
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NRF_LOG_INFO("USDB example started.");
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log_resetreason();
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nrf_power_resetreas_clear(nrf_power_resetreas_get());
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/* USB work starts right here */
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ret = nrf_drv_usbd_init(usbd_event_handler);
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APP_ERROR_CHECK(ret);
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/* Configure selected size of the packed on EP0 */
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nrf_drv_usbd_ep_max_packet_size_set(NRF_DRV_USBD_EPOUT0, EP0_MAXPACKETSIZE);
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nrf_drv_usbd_ep_max_packet_size_set(NRF_DRV_USBD_EPIN0, EP0_MAXPACKETSIZE);
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/* Configure LED and button */
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bsp_board_init(BSP_INIT_LEDS);
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bsp_board_led_on(LED_RUNNING);
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bsp_board_led_on(LED_ACTIVE);
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if (USBD_POWER_DETECTION)
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{
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static const nrf_drv_power_usbevt_config_t config =
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{
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.handler = power_usb_event_handler
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};
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ret = nrf_drv_power_usbevt_init(&config);
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APP_ERROR_CHECK(ret);
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}
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else
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{
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NRF_LOG_INFO("No USB power detection enabled\r\nStarting USB now");
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nrf_delay_us(STARTUP_DELAY);
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if (!nrf_drv_usbd_is_enabled())
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{
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nrf_drv_usbd_enable();
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ret = ep_configuration(0);
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APP_ERROR_CHECK(ret);
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}
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/* Wait for regulator power up */
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while (NRF_DRV_POWER_USB_STATE_CONNECTED
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==
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nrf_drv_power_usbstatus_get())
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{
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/* Just waiting */
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}
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if (NRF_DRV_POWER_USB_STATE_READY == nrf_drv_power_usbstatus_get())
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{
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if (!nrf_drv_usbd_is_started())
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{
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nrf_drv_usbd_start(true);
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}
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}
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else
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{
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nrf_drv_usbd_disable();
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}
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}
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while (true)
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{
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if (m_system_off_req)
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{
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NRF_LOG_INFO("Going to system OFF");
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NRF_LOG_FLUSH();
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bsp_board_led_off(LED_RUNNING);
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bsp_board_led_off(LED_ACTIVE);
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nrf_power_system_off();
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}
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if (m_usbd_suspended != m_usbd_suspend_state_req)
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{
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if (m_usbd_suspend_state_req)
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{
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m_usbd_suspended = nrf_drv_usbd_suspend();
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if (m_usbd_suspended)
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{
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bsp_board_leds_off();
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}
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}
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else
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{
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m_usbd_suspended = false;
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}
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}
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if (m_usbd_configured)
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{
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if (m_send_flag)
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{
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if (m_usbd_suspended)
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{
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if (m_usbd_rwu_enabled)
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{
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UNUSED_RETURN_VALUE(nrf_drv_usbd_wakeup_req());
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}
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}
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else
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{
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NRF_LOG_INFO(" TX pointer");
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move_mouse_pointer();
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}
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}
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}
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nrf_cli_process(&m_cli_uart);
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UNUSED_RETURN_VALUE(NRF_LOG_PROCESS());
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bsp_board_led_off(LED_RUNNING);
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/* Even if we miss an event enabling USB,
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* USB event would wake us up. */
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__WFE();
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/* Clear SEV flag if CPU was woken up by event */
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__SEV();
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__WFE();
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bsp_board_led_on(LED_RUNNING);
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}
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}
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