Hello All,
I'm updating an application for the nRF52840 that requires it to enumerate and act as joystick. I'm able to run the HID generic example in SDK15.2 on the BMD340 dev board and I used that as a starting point to modify. The device seems to enumerate correctly and is detected as a game controller, however none of the button presses are updating the values on the host (PC) side.
I have attached the main.c file and will try also provide relevant snippets in the post.
The descriptor looks like so, I tried changing it so that all report sizes were 16 bits to see if that was the issue, but it did not help:
/**
* @brief Example of USB HID mouse report descriptor for n button mouse.
*
* @param bcnt Button count. Allowed values from 1 to 8.
*/
#define APP_USBD_HID_STICK_REPORT_DSC() { \
0x05, 0x01, /* USAGE_PAGE (Generic Desktop)*/ \
0x09, 0x04, /* USAGE (Joystick)*/ \
0xa1, 0x01, /* COLLECTION (Application)*/ \
0xa1, 0x02, /* COLLECTION (Logical)*/ \
0x85, 0x01, /* REPORT_ID (1)*/ \
0x09, 0x30, /* USAGE (X)*/ \
0x09, 0x31, /* USAGE (Y)*/ \
0x16, 0x80, 0xf3, /* LOGICAL_MINIMUM (-3200)*/ \
0x26, 0x80, 0x0c, /* LOGICAL_MAXIMUM (3200)*/ \
0x75, 0x10, /* REPORT_SIZE (16)*/ \
0x95, 0x02, /* REPORT_COUNT (2)*/ \
0x81, 0x02, /* INPUT (Data,Var,Abs)*/ \
0x09, 0x32, /* USAGE (Z)*/ \
0x16, 0xe0, 0xfc, /* LOGICAL_MINIMUM (-800)*/ \
0x26, 0x20, 0x03, /* LOGICAL_MAXIMUM (800)*/ \
0x75, 0x10, /* REPORT_SIZE (16)*/ \
0x95, 0x01, /* REPORT_COUNT (1)*/ \
0x81, 0x02, /* INPUT (Data,Var,Abs)*/ \
0x09, 0x35, /* USAGE (Rz)*/ \
0x16, 0x6a, 0xff, /* LOGICAL_MINIMUM (-150)*/ \
0x26, 0x96, 0x00, /* LOGICAL_MAXIMUM (150)*/ \
0x75, 0x10, /* REPORT_SIZE (16)*/ \
0x95, 0x01, /* REPORT_COUNT (1)*/ \
0x81, 0x02, /* INPUT (Data,Var,Abs)*/ \
0xc0, /* END_COLLECTION*/ \
0xa1, 0x02, /* COLLECTION (Logical)*/ \
0x85, 0x02, /* REPORT_ID (2)*/ \
0x05, 0x09, /* USAGE_PAGE (Button)*/ \
0x19, 0x01, /* USAGE_MINIMUM (Button 1)*/ \
0x29, 0x08, /* USAGE_MAXIMUM (Button 8)*/ \
0x95, 0x08, /* REPORT_COUNT (8)*/ \
0x75, 0x01, /* REPORT_SIZE (1)*/ \
0x15, 0x00, /* LOGICAL_MINIMUM (0)*/ \
0x25, 0x01, /* LOGICAL_MAXIMUM (1)*/ \
0x81, 0x02, /* INPUT (Data,Var,Abs)*/ \
0xc0, /* END_COLLECTION*/ \
0xc0 /* END_COLLECTION*/ \
}
The process state function and defines:
/* HID report layout */
#define HID_X_IDX 0 /**< X offset position */
#define HID_Y_IDX 1 /**< Y offset position */
#define HID_Z_IDX 2 /**< Y offset position */
#define HID_YAW_IDX 3 /**< Y offset position */
#define HID_BTN_IDX 4 /**< Button bit mask position */
#define HID_REP_SIZE 9 /**< The size of the report in int8_t bytes*/
/**
* @brief Number of reports defined in report descriptor.
*/
#define REPORT_IN_QUEUE_SIZE 1
static void hid_generic_stick_process_state(void)
{
if (m_report_pending)
return;
if ((m_joystick_state.acc_x != 0) ||
(m_joystick_state.acc_y != 0) ||
(m_joystick_state.acc_z != 0) ||
(m_joystick_state.acc_yaw != 0) ||
(m_joystick_state.btn_aux != m_joystick_state.last_btn_aux) ||
(m_joystick_state.btn_rth != m_joystick_state.last_btn_rth))
{
ret_code_t ret;
static int8_t report[HID_REP_SIZE];
/* We have some status changed that we need to transfer */
report[HID_X_IDX*2] = (int8_t)((hid_acc_for_report_get(m_joystick_state.acc_x) >> 8) & 0xff);
report[(HID_X_IDX*2)+1] = (int8_t)(hid_acc_for_report_get(m_joystick_state.acc_x) & 0xff);
report[HID_Y_IDX*2] = (int8_t)((hid_acc_for_report_get(m_joystick_state.acc_y) >> 8) & 0xff);
report[(HID_Y_IDX*2)+1] = (int8_t)(hid_acc_for_report_get(m_joystick_state.acc_y) & 0xff);
report[HID_Z_IDX*2] = (int8_t)((hid_acc_for_report_get(m_joystick_state.acc_z) >> 8) & 0xff);
report[(HID_Z_IDX*2)+1] = (int8_t)(hid_acc_for_report_get(m_joystick_state.acc_z) & 0xff);
report[HID_YAW_IDX*2] = (int8_t)((hid_acc_for_report_get(m_joystick_state.acc_yaw) >> 8) & 0xff);
report[(HID_YAW_IDX*2)+1] = (int8_t)(hid_acc_for_report_get(m_joystick_state.acc_yaw) & 0xff);
report[HID_BTN_IDX] = (int8_t)hid_acc_for_report_get(m_joystick_state.btn_rth) | (int8_t)hid_acc_for_report_get(m_joystick_state.btn_aux);
/* Start the transfer */
ret = app_usbd_hid_generic_in_report_set(
&m_app_hid_generic,
report,
sizeof(report));
if (ret == NRF_SUCCESS)
{
m_report_pending = true;
}
}
}
The PC recognizes all the axis:
but pressing the buttons on the dev board does not change the outputs, buttons or axis. I don't see any failed transfer on wireshark or the like.
Any ideas? Thank you for your time and I will answer any questions I can.
/**
* Copyright (c) 2017 - 2018, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#include "nrf.h"
#include "app_util_platform.h"
#include "nrf_drv_usbd.h"
#include "nrf_drv_clock.h"
#include "nrf_gpio.h"
#include "nrf_drv_power.h"
#include "app_timer.h"
#include "app_usbd.h"
#include "app_usbd_core.h"
#include "app_usbd_hid_generic.h"
#include "app_usbd_hid_mouse.h"
#include "app_usbd_hid_kbd.h"
#include "app_error.h"
#include "bsp.h"
#include "bsp_cli.h"
#include "nrf_cli.h"
#include "nrf_cli_uart.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
/**
* @brief CLI interface over UART
*/
NRF_CLI_UART_DEF(m_cli_uart_transport, 0, 64, 16);
NRF_CLI_DEF(m_cli_uart,
"uart_cli:~$ ",
&m_cli_uart_transport.transport,
'\r',
4);
/**
* @brief Enable USB power detection
*/
#ifndef USBD_POWER_DETECTION
#define USBD_POWER_DETECTION true
#endif
/**
* @brief HID generic class interface number.
* */
#define HID_GENERIC_INTERFACE 0
/**
* @brief HID generic class endpoint number.
* */
#define HID_GENERIC_EPIN NRF_DRV_USBD_EPIN1
/**
* @brief Mouse speed (value sent via HID when board button is pressed).
* */
#define CONFIG_MOUSE_MOVE_SPEED (3)
#define CONFIG_STICK_MOVE_SPEED (140)
/**
* @brief Mouse move repeat time in milliseconds
*/
#define CONFIG_MOUSE_MOVE_TIME_MS (5)
/* GPIO used as LED & buttons in this example */
#define LED_USB_START (BSP_BOARD_LED_0)
#define LED_HID_REP_IN (BSP_BOARD_LED_2)
#define BTN_JOYSTICK_X_POS 0
#define BTN_JOYSTICK_Y_POS 1
#define BTN_JOYSTICK_RTH 2
#define BTN_JOYSTICK_AUX 3
/**
* @brief Left button mask in buttons report
*/
//#define HID_BTN_LEFT_MASK (1U << 0)
#define HID_BTN_RTH_MASK (1U << 0)
/**
* @brief Right button mask in buttons report
*/
//#define HID_BTN_RIGHT_MASK (1U << 1)
#define HID_BTN_AUX_MASK (1U << 1)
/* HID report layout */
#define HID_X_IDX 0 /**< X offset position */
#define HID_Y_IDX 1 /**< Y offset position */
#define HID_Z_IDX 2 /**< Y offset position */
#define HID_YAW_IDX 3 /**< Y offset position */
#define HID_BTN_IDX 4 /**< Button bit mask position */
#define HID_REP_SIZE 9 /**< The size of the report in int8_t bytes*/
/**
* @brief Number of reports defined in report descriptor.
*/
#define REPORT_IN_QUEUE_SIZE 1
/**
* @brief Size of maximum output report. HID generic class will reserve
* this buffer size + 1 memory space.
*
* Maximum value of this define is 63 bytes. Library automatically adds
* one byte for report ID. This means that output report size is limited
* to 64 bytes.
*/
#define REPORT_OUT_MAXSIZE 0
/**
* @brief HID generic class endpoints count.
* */
#define HID_GENERIC_EP_COUNT 1 //just one endpoint
/**
* @brief List of HID generic class endpoints.
* */
#define ENDPOINT_LIST() \
( \
HID_GENERIC_EPIN \
)
#define STICK_MAX 300
#define STICK_MIN -300
/**
* @brief Example of USB HID mouse report descriptor for n button mouse.
*
* @param bcnt Button count. Allowed values from 1 to 8.
*/
#define APP_USBD_HID_STICK_REPORT_DSC() { \
0x05, 0x01, /* USAGE_PAGE (Generic Desktop)*/ \
0x09, 0x04, /* USAGE (Joystick)*/ \
0xa1, 0x01, /* COLLECTION (Application)*/ \
0xa1, 0x02, /* COLLECTION (Logical)*/ \
0x85, 0x01, /* REPORT_ID (1)*/ \
0x09, 0x30, /* USAGE (X)*/ \
0x09, 0x31, /* USAGE (Y)*/ \
0x16, 0x80, 0xf3, /* LOGICAL_MINIMUM (-3200)*/ \
0x26, 0x80, 0x0c, /* LOGICAL_MAXIMUM (3200)*/ \
0x75, 0x10, /* REPORT_SIZE (16)*/ \
0x95, 0x02, /* REPORT_COUNT (2)*/ \
0x81, 0x02, /* INPUT (Data,Var,Abs)*/ \
0x09, 0x32, /* USAGE (Z)*/ \
0x16, 0xe0, 0xfc, /* LOGICAL_MINIMUM (-800)*/ \
0x26, 0x20, 0x03, /* LOGICAL_MAXIMUM (800)*/ \
0x75, 0x10, /* REPORT_SIZE (16)*/ \
0x95, 0x01, /* REPORT_COUNT (1)*/ \
0x81, 0x02, /* INPUT (Data,Var,Abs)*/ \
0x09, 0x35, /* USAGE (Rz)*/ \
0x16, 0x6a, 0xff, /* LOGICAL_MINIMUM (-150)*/ \
0x26, 0x96, 0x00, /* LOGICAL_MAXIMUM (150)*/ \
0x75, 0x10, /* REPORT_SIZE (16)*/ \
0x95, 0x01, /* REPORT_COUNT (1)*/ \
0x81, 0x02, /* INPUT (Data,Var,Abs)*/ \
0xc0, /* END_COLLECTION*/ \
0xa1, 0x02, /* COLLECTION (Logical)*/ \
0x85, 0x02, /* REPORT_ID (2)*/ \
0x05, 0x09, /* USAGE_PAGE (Button)*/ \
0x19, 0x01, /* USAGE_MINIMUM (Button 1)*/ \
0x29, 0x08, /* USAGE_MAXIMUM (Button 8)*/ \
0x95, 0x08, /* REPORT_COUNT (8)*/ \
0x75, 0x01, /* REPORT_SIZE (1)*/ \
0x15, 0x00, /* LOGICAL_MINIMUM (0)*/ \
0x25, 0x01, /* LOGICAL_MAXIMUM (1)*/ \
0x81, 0x02, /* INPUT (Data,Var,Abs)*/ \
0xc0, /* END_COLLECTION*/ \
0xc0 /* END_COLLECTION*/ \
}
/**
* @brief Additional key release events
*
* This example needs to process release events of used buttons
*/
enum {
BSP_USER_EVENT_RELEASE_0 = BSP_EVENT_KEY_LAST + 1, /**< Button 0 released */
BSP_USER_EVENT_RELEASE_1, /**< Button 1 released */
BSP_USER_EVENT_RELEASE_2, /**< Button 2 released */
BSP_USER_EVENT_RELEASE_3, /**< Button 3 released */
BSP_USER_EVENT_RELEASE_4, /**< Button 4 released */
BSP_USER_EVENT_RELEASE_5, /**< Button 5 released */
BSP_USER_EVENT_RELEASE_6, /**< Button 6 released */
BSP_USER_EVENT_RELEASE_7, /**< Button 7 released */
};
/**
* @brief HID generic stick action types
*/
typedef enum {
HID_GENERIC_STICK_X,
HID_GENERIC_STICK_Y,
HID_GENERIC_STICK_Z,
HID_GENERIC_STICK_YAW,
HID_GENERIC_STICK_BTN_RTH,
HID_GENERIC_STICK_BTN_AUX,
} hid_generic_stick_action_t;
/**
* @brief User event handler.
* */
static void hid_user_ev_handler(app_usbd_class_inst_t const * p_inst,
app_usbd_hid_user_event_t event);
/**
* @brief Reuse HID mouse report descriptor for HID generic class
*/
APP_USBD_HID_GENERIC_SUBCLASS_REPORT_DESC(stick_desc,APP_USBD_HID_STICK_REPORT_DSC());
static const app_usbd_hid_subclass_desc_t * reps[] = {&stick_desc};
/*lint -save -e26 -e64 -e123 -e505 -e651*/
/**
* @brief Global HID generic instance
*/
APP_USBD_HID_GENERIC_GLOBAL_DEF(m_app_hid_generic,
HID_GENERIC_INTERFACE,
hid_user_ev_handler,
ENDPOINT_LIST(),
reps,
REPORT_IN_QUEUE_SIZE,
REPORT_OUT_MAXSIZE,
APP_USBD_HID_SUBCLASS_NONE,
APP_USBD_HID_PROTO_GENERIC);
/*lint -restore*/
/**
* @brief joystick state
*
* Current joystick status
*/
struct
{
int16_t acc_x; /**< Accumulated x state */
int16_t acc_y; /**< Accumulated y state */
int16_t acc_z; /**< Accumulated z state */
int16_t acc_yaw; /**< Accumulated yaw state */
uint8_t btn_rth; /**< Current btn state */
uint8_t btn_aux; /**< Current btn state */
uint8_t last_btn_rth; /**< Last transfered button state */
uint8_t last_btn_aux; /**< Last transfered button state */
}m_joystick_state;
/**
* @brief Mark the ongoing transmission
*
* Marks that the report buffer is busy and cannot be used until transmission finishes
* or invalidates (by USB reset or suspend event).
*/
static bool m_report_pending;
/**
* @brief Timer to repeat mouse move
*/
APP_TIMER_DEF(m_stick_move_timer);
/**
* @brief Get maximal allowed accumulated value
*
* Function gets maximal value from the accumulated input.
* @sa m_mouse_state::acc_x, m_mouse_state::acc_y
*/
static int16_t hid_acc_for_report_get(int16_t acc)
{
if(acc > STICK_MAX)
{
return STICK_MAX;
}
else if(acc < STICK_MIN)
{
return STICK_MIN;
}
else
{
return (int16_t)(acc);
}
}
/**
* @brief Internal function that process state
*
* This function checks current mouse state and tries to send
* new report if required.
* If report sending was successful it clears accumulated positions
* and mark last button state that was transfered.
*/
static void hid_generic_stick_process_state(void)
{
if (m_report_pending)
return;
if ((m_joystick_state.acc_x != 0) ||
(m_joystick_state.acc_y != 0) ||
(m_joystick_state.acc_z != 0) ||
(m_joystick_state.acc_yaw != 0) ||
(m_joystick_state.btn_aux != m_joystick_state.last_btn_aux) ||
(m_joystick_state.btn_rth != m_joystick_state.last_btn_rth))
{
ret_code_t ret;
static int8_t report[HID_REP_SIZE];
/* We have some status changed that we need to transfer */
report[HID_X_IDX*2] = (int8_t)((hid_acc_for_report_get(m_joystick_state.acc_x) >> 8) & 0xff);
report[(HID_X_IDX*2)+1] = (int8_t)(hid_acc_for_report_get(m_joystick_state.acc_x) & 0xff);
report[HID_Y_IDX*2] = (int8_t)((hid_acc_for_report_get(m_joystick_state.acc_y) >> 8) & 0xff);
report[(HID_Y_IDX*2)+1] = (int8_t)(hid_acc_for_report_get(m_joystick_state.acc_y) & 0xff);
report[HID_Z_IDX*2] = (int8_t)((hid_acc_for_report_get(m_joystick_state.acc_z) >> 8) & 0xff);
report[(HID_Z_IDX*2)+1] = (int8_t)(hid_acc_for_report_get(m_joystick_state.acc_z) & 0xff);
report[HID_YAW_IDX*2] = (int8_t)((hid_acc_for_report_get(m_joystick_state.acc_yaw) >> 8) & 0xff);
report[(HID_YAW_IDX*2)+1] = (int8_t)(hid_acc_for_report_get(m_joystick_state.acc_yaw) & 0xff);
report[HID_BTN_IDX] = (int8_t)hid_acc_for_report_get(m_joystick_state.btn_rth) | (int8_t)hid_acc_for_report_get(m_joystick_state.btn_aux);
/* Start the transfer */
ret = app_usbd_hid_generic_in_report_set(
&m_app_hid_generic,
report,
sizeof(report));
if (ret == NRF_SUCCESS)
{
m_report_pending = true;
// m_joystick_state.last_btn_rth = (int16_t)(report[HID_BTN_1_IDX]);
// m_joystick_state.last_btn_aux = (int16_t)(report[HID_BTN_2_IDX]);
// CRITICAL_REGION_ENTER();
// /* This part of the code can fail if interrupted by BSP keys processing.
// * Lock interrupts to be safe */
// m_joystick_state.acc_x -= (int16_t)report[HID_X_IDX];
// m_joystick_state.acc_y -= (int16_t)report[HID_Y_IDX];
// m_joystick_state.acc_z -= (int16_t)report[HID_Z_IDX];
// m_joystick_state.acc_yaw -= (int16_t)report[HID_YAW_IDX];
// CRITICAL_REGION_EXIT();
}
}
}
/**
* @brief HID generic IN report send handling
* */
static void hid_generic_stick_action(hid_generic_stick_action_t action, int8_t param)
{
CRITICAL_REGION_ENTER();
/*
* Update mouse state
*/
switch (action)
{
case HID_GENERIC_STICK_X:
m_joystick_state.acc_x += param;
break;
case HID_GENERIC_STICK_Y:
m_joystick_state.acc_y += param;
break;
case HID_GENERIC_STICK_Z:
m_joystick_state.acc_z += param;
break;
case HID_GENERIC_STICK_YAW:
m_joystick_state.acc_yaw += param;
break;
case HID_GENERIC_STICK_BTN_RTH:
if(param == 1)
{
m_joystick_state.btn_rth = HID_BTN_RTH_MASK;
}
else
{
m_joystick_state.btn_rth = 0;
}
break;
case HID_GENERIC_STICK_BTN_AUX:
if(param == 1)
{
m_joystick_state.btn_aux = HID_BTN_AUX_MASK;
}
else
{
m_joystick_state.btn_aux = 0;
}
break;
}
CRITICAL_REGION_EXIT();
}
/**
* @brief Class specific event handler.
*
* @param p_inst Class instance.
* @param event Class specific event.
* */
static void hid_user_ev_handler(app_usbd_class_inst_t const * p_inst,
app_usbd_hid_user_event_t event)
{
switch (event)
{
case APP_USBD_HID_USER_EVT_OUT_REPORT_READY:
{
/* No output report defined for this example.*/
ASSERT(0);
break;
}
case APP_USBD_HID_USER_EVT_IN_REPORT_DONE:
{
m_report_pending = false;
hid_generic_stick_process_state();
bsp_board_led_invert(LED_HID_REP_IN);
break;
}
case APP_USBD_HID_USER_EVT_SET_BOOT_PROTO:
{
UNUSED_RETURN_VALUE(hid_generic_clear_buffer(p_inst));
NRF_LOG_INFO("SET_BOOT_PROTO");
break;
}
case APP_USBD_HID_USER_EVT_SET_REPORT_PROTO:
{
UNUSED_RETURN_VALUE(hid_generic_clear_buffer(p_inst));
NRF_LOG_INFO("SET_REPORT_PROTO");
break;
}
default:
break;
}
}
/**
* @brief USBD library specific event handler.
*
* @param event USBD library event.
* */
static void usbd_user_ev_handler(app_usbd_event_type_t event)
{
switch (event)
{
case APP_USBD_EVT_DRV_SOF:
break;
case APP_USBD_EVT_DRV_RESET:
m_report_pending = false;
break;
case APP_USBD_EVT_DRV_SUSPEND:
m_report_pending = false;
app_usbd_suspend_req(); // Allow the library to put the peripheral into sleep mode
bsp_board_leds_off();
break;
case APP_USBD_EVT_DRV_RESUME:
m_report_pending = false;
bsp_board_led_on(LED_USB_START);
break;
case APP_USBD_EVT_STARTED:
m_report_pending = false;
bsp_board_led_on(LED_USB_START);
break;
case APP_USBD_EVT_STOPPED:
app_usbd_disable();
bsp_board_leds_off();
break;
case APP_USBD_EVT_POWER_DETECTED:
NRF_LOG_INFO("USB power detected");
if (!nrf_drv_usbd_is_enabled())
{
app_usbd_enable();
}
break;
case APP_USBD_EVT_POWER_REMOVED:
NRF_LOG_INFO("USB power removed");
app_usbd_stop();
break;
case APP_USBD_EVT_POWER_READY:
NRF_LOG_INFO("USB ready");
app_usbd_start();
break;
default:
break;
}
}
static void stick_move_timer_handler(void * p_context)
{
UNUSED_PARAMETER(p_context);
bool used = false;
if (bsp_button_is_pressed(BTN_JOYSTICK_X_POS))
{
hid_generic_stick_action(HID_GENERIC_STICK_X, CONFIG_STICK_MOVE_SPEED);
used = true;
}
if (bsp_button_is_pressed(BTN_JOYSTICK_Y_POS))
{
hid_generic_stick_action(HID_GENERIC_STICK_Y, CONFIG_STICK_MOVE_SPEED);
used = true;
}
if(!used)
{
UNUSED_RETURN_VALUE(app_timer_stop(m_stick_move_timer));
}
}
static void bsp_event_callback(bsp_event_t ev)
{
switch ((unsigned int)ev)
{
case CONCAT_2(BSP_EVENT_KEY_, BTN_JOYSTICK_X_POS):
hid_generic_stick_action(HID_GENERIC_STICK_X, CONFIG_STICK_MOVE_SPEED);
UNUSED_RETURN_VALUE(app_timer_start(m_stick_move_timer, APP_TIMER_TICKS(CONFIG_MOUSE_MOVE_TIME_MS), NULL));
break;
case CONCAT_2(BSP_EVENT_KEY_, BTN_JOYSTICK_Y_POS):
hid_generic_stick_action(HID_GENERIC_STICK_Y, CONFIG_STICK_MOVE_SPEED);
UNUSED_RETURN_VALUE(app_timer_start(m_stick_move_timer, APP_TIMER_TICKS(CONFIG_MOUSE_MOVE_TIME_MS), NULL));
break;
case CONCAT_2(BSP_EVENT_KEY_, BTN_JOYSTICK_RTH):
hid_generic_stick_action(HID_GENERIC_STICK_BTN_RTH, 1);
break;
case CONCAT_2(BSP_USER_EVENT_RELEASE_, BTN_JOYSTICK_RTH):
hid_generic_stick_action(HID_GENERIC_STICK_BTN_RTH, -1);
break;
case CONCAT_2(BSP_EVENT_KEY_, BTN_JOYSTICK_AUX):
hid_generic_stick_action(HID_GENERIC_STICK_BTN_AUX, 1);
break;
case CONCAT_2(BSP_USER_EVENT_RELEASE_, BTN_JOYSTICK_AUX):
hid_generic_stick_action(HID_GENERIC_STICK_BTN_AUX, -1);
break;
default:
return; // no implementation needed
}
}
/**
* @brief Auxiliary internal macro
*
* Macro used only in @ref init_bsp to simplify the configuration
*/
#define INIT_BSP_ASSIGN_RELEASE_ACTION(btn) \
APP_ERROR_CHECK( \
bsp_event_to_button_action_assign( \
btn, \
BSP_BUTTON_ACTION_RELEASE, \
(bsp_event_t)CONCAT_2(BSP_USER_EVENT_RELEASE_, btn)) \
)
static void init_bsp(void)
{
ret_code_t ret;
ret = bsp_init(BSP_INIT_BUTTONS, bsp_event_callback);
APP_ERROR_CHECK(ret);
INIT_BSP_ASSIGN_RELEASE_ACTION(BTN_JOYSTICK_RTH );
INIT_BSP_ASSIGN_RELEASE_ACTION(BTN_JOYSTICK_AUX);
/* Configure LEDs */
bsp_board_init(BSP_INIT_LEDS);
}
static void init_cli(void)
{
ret_code_t ret;
ret = bsp_cli_init(bsp_event_callback);
APP_ERROR_CHECK(ret);
nrf_drv_uart_config_t uart_config = NRF_DRV_UART_DEFAULT_CONFIG;
uart_config.pseltxd = TX_PIN_NUMBER;
uart_config.pselrxd = RX_PIN_NUMBER;
uart_config.hwfc = NRF_UART_HWFC_DISABLED;
ret = nrf_cli_init(&m_cli_uart, &uart_config, true, true, NRF_LOG_SEVERITY_INFO);
APP_ERROR_CHECK(ret);
ret = nrf_cli_start(&m_cli_uart);
APP_ERROR_CHECK(ret);
}
static ret_code_t idle_handle(app_usbd_class_inst_t const * p_inst, uint8_t report_id)
{
switch (report_id)
{
case 0:
{
uint8_t report[] = {0xBE, 0xEF};
return app_usbd_hid_generic_idle_report_set(
&m_app_hid_generic,
report,
sizeof(report));
}
default:
return NRF_ERROR_NOT_SUPPORTED;
}
}
int main(void)
{
ret_code_t ret;
static const app_usbd_config_t usbd_config = {
.ev_state_proc = usbd_user_ev_handler
};
ret = NRF_LOG_INIT(NULL);
APP_ERROR_CHECK(ret);
ret = nrf_drv_clock_init();
APP_ERROR_CHECK(ret);
nrf_drv_clock_lfclk_request(NULL);
while(!nrf_drv_clock_lfclk_is_running())
{
/* Just waiting */
}
ret = app_timer_init();
APP_ERROR_CHECK(ret);
// ret = app_timer_create(&m_stick_move_timer, APP_TIMER_MODE_REPEATED, stick_move_timer_handler);
// APP_ERROR_CHECK(ret);
init_bsp();
init_cli();
NRF_LOG_INFO("Hello USB!");
ret = app_usbd_init(&usbd_config);
APP_ERROR_CHECK(ret);
NRF_LOG_INFO("USBD HID generic example started.");
app_usbd_class_inst_t const * class_inst_generic;
class_inst_generic = app_usbd_hid_generic_class_inst_get(&m_app_hid_generic);
ret = hid_generic_idle_handler_set(class_inst_generic, idle_handle);
APP_ERROR_CHECK(ret);
ret = app_usbd_class_append(class_inst_generic);
APP_ERROR_CHECK(ret);
if (USBD_POWER_DETECTION)
{
ret = app_usbd_power_events_enable();
APP_ERROR_CHECK(ret);
}
else
{
NRF_LOG_INFO("No USB power detection enabled\r\nStarting USB now");
app_usbd_enable();
app_usbd_start();
}
while (true)
{
while (app_usbd_event_queue_process())
{
/* Nothing to do */
}
hid_generic_stick_process_state();
nrf_cli_process(&m_cli_uart);
UNUSED_RETURN_VALUE(NRF_LOG_PROCESS());
/* Sleep CPU only if there was no interrupt since last loop processing */
__WFE();
}
}
