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- /**
- * Copyright (c) 2016 - 2020, 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 "sdk_common.h"
- #if NRF_MODULE_ENABLED(APP_USBD_HID_GENERIC)
- #include <string.h>
- #include "app_usbd_hid_generic.h"
- #include "app_util_platform.h"
- /**
- * @ingroup app_usbd_hid_generic
- *
- * Module with types, definitions and API used by HID generic.
- * @{
- */
- /**
- * @brief Auxiliary function to access HID generic context data.
- *
- * @param[in] p_generic HID generic instance.
- *
- * @return HID generic class instance data context.
- */
- static inline app_usbd_hid_generic_ctx_t *
- hid_generic_ctx_get(app_usbd_hid_generic_t const * p_generic)
- {
- ASSERT(p_generic != NULL);
- ASSERT(p_generic->specific.p_data != NULL);
- return &p_generic->specific.p_data->ctx;
- }
- /**
- * @brief Auxiliary function to access HID generic instance data.
- *
- * @param[in] p_inst Class instance data.
- *
- * @return HID generic class instance data.
- */
- static inline app_usbd_hid_generic_t const *
- hid_generic_get(app_usbd_class_inst_t const * p_inst)
- {
- ASSERT(p_inst != NULL);
- return (app_usbd_hid_generic_t const *)p_inst;
- }
- /**
- * @brief Returns report ID buffer descriptor.
- *
- * @param[in] p_generic Internal HID generic context.
- *
- * @return HID report buffer.
- */
- static inline app_usbd_hid_report_buffer_t *
- hid_generic_rep_buffer_get(app_usbd_hid_generic_t const * p_generic)
- {
- ASSERT(p_generic != NULL);
- app_usbd_hid_inst_t const * p_hinst = &p_generic->specific.inst.hid_inst;
- return app_usbd_hid_rep_buff_in_get(p_hinst);
- }
- /**
- * @brief Auxiliary function to prepare report transfer buffer to next transfer.
- *
- * @param[in] p_generic HID generic instance.
- *
- * @retval true Next transfer required.
- * @retval false Next transfer not required.
- */
- static inline bool hid_generic_transfer_next(app_usbd_hid_generic_t const * p_generic)
- {
- nrf_queue_t const * p_rep_in_queue = p_generic->specific.inst.p_rep_in_queue;
- return !nrf_queue_is_empty(p_rep_in_queue);
- }
- /**
- * @brief Triggers IN endpoint transfer.
- *
- * @param[in] p_generic HID generic instance.
- *
- * @return Standard error code.
- */
- static inline ret_code_t hid_generic_transfer_set(app_usbd_hid_generic_t const * p_generic)
- {
- app_usbd_class_inst_t const * p_inst = (app_usbd_class_inst_t const *)p_generic;
- app_usbd_hid_generic_ctx_t * p_generic_ctx = hid_generic_ctx_get(p_generic);
- nrf_drv_usbd_ep_t ep_addr = app_usbd_hid_epin_addr_get(p_inst);
- app_usbd_hid_state_flag_clr(&p_generic_ctx->hid_ctx,
- APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);
- if (!hid_generic_transfer_next(p_generic))
- {
- return NRF_SUCCESS;
- }
- app_usbd_hid_report_buffer_t * p_rep_buff = hid_generic_rep_buffer_get(p_generic);
- nrf_queue_t const * p_rep_in_queue = p_generic->specific.inst.p_rep_in_queue;
- ret_code_t ret = nrf_queue_pop(p_rep_in_queue, p_rep_buff);
- ASSERT(ret == NRF_SUCCESS);
- NRF_DRV_USBD_TRANSFER_IN(transfer, p_rep_buff->p_buff, p_rep_buff->size);
- CRITICAL_REGION_ENTER();
- ret = app_usbd_ep_transfer(ep_addr, &transfer);
- if (ret == NRF_SUCCESS)
- {
- app_usbd_hid_state_flag_set(&p_generic_ctx->hid_ctx,
- APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);
- }
- CRITICAL_REGION_EXIT();
- return ret;
- }
- ret_code_t hid_generic_clear_buffer(app_usbd_class_inst_t const * p_inst)
- {
- ASSERT(p_inst != NULL);
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- app_usbd_hid_generic_ctx_t * p_generic_ctx = hid_generic_ctx_get(p_generic);
- app_usbd_hid_report_buffer_t * p_rep_buffer = hid_generic_rep_buffer_get(p_generic);
- nrf_queue_t const * p_rep_in_queue = p_generic->specific.inst.p_rep_in_queue;
- ret_code_t ret = NRF_SUCCESS;
- /* Clear all queued reports */
- while(ret != NRF_ERROR_NOT_FOUND)
- {
- ret = nrf_queue_pop(p_rep_in_queue, p_rep_buffer);
- }
- CRITICAL_REGION_ENTER();
- uint8_t iface_count = app_usbd_class_iface_count_get(p_inst);
- app_usbd_class_iface_conf_t const * p_iface = NULL;
- for (uint8_t i = 0; i < iface_count; ++i)
- {
- p_iface = app_usbd_class_iface_get(p_inst, i);
- uint8_t ep_count = app_usbd_class_iface_ep_count_get(p_iface);
- for (uint8_t j = 0; j < ep_count; ++j)
- {
- /*Abort transfer on every IN endpoint*/
- app_usbd_class_ep_conf_t const * p_ep = app_usbd_class_iface_ep_get(p_iface, j);
- ASSERT(!NRF_USBD_EPISO_CHECK(p_ep->address));
- if (NRF_USBD_EPIN_CHECK(p_ep->address))
- {
- nrf_drv_usbd_ep_abort(p_ep->address);
- }
- }
- }
- app_usbd_hid_state_flag_clr(&p_generic_ctx->hid_ctx, APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);
- CRITICAL_REGION_EXIT();
- return ret;
- }
- ret_code_t app_usbd_hid_generic_in_report_set(app_usbd_hid_generic_t const * p_generic,
- const void * p_buff,
- size_t size)
- {
- app_usbd_hid_generic_ctx_t * p_generic_ctx = hid_generic_ctx_get(p_generic);
- nrf_queue_t const * p_rep_in_queue = p_generic->specific.inst.p_rep_in_queue;
- const app_usbd_hid_report_buffer_t rep_buff = {
- .p_buff = (void *)p_buff,
- .size = size,
- };
- if (nrf_queue_push(p_rep_in_queue, &rep_buff) != NRF_SUCCESS)
- {
- return NRF_ERROR_BUSY;
- }
- ret_code_t ret = NRF_SUCCESS;
- if (app_usbd_hid_trans_required(&p_generic_ctx->hid_ctx) &&
- !p_generic_ctx->hid_ctx.idle_on)
- {
- ret = hid_generic_transfer_set(p_generic);
- }
- return ret;
- }
- ret_code_t app_usbd_hid_generic_idle_report_set(app_usbd_hid_generic_t const * p_generic,
- const void * p_buff,
- size_t size)
- {
- app_usbd_class_inst_t const * p_inst = (app_usbd_class_inst_t const *)p_generic;
- app_usbd_hid_generic_ctx_t * p_generic_ctx = hid_generic_ctx_get(p_generic);
- ret_code_t ret;
- nrf_drv_usbd_ep_t ep_addr = app_usbd_hid_epin_addr_get(p_inst);
- app_usbd_hid_state_flag_clr(&p_generic_ctx->hid_ctx,
- APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);
- NRF_DRV_USBD_TRANSFER_IN(transfer, p_buff, size);
- CRITICAL_REGION_ENTER();
- ret = app_usbd_ep_transfer(ep_addr, &transfer);
- if (ret == NRF_SUCCESS)
- {
- app_usbd_hid_state_flag_set(&p_generic_ctx->hid_ctx,
- APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);
- }
- CRITICAL_REGION_EXIT();
- return ret;
- }
- const void * app_usbd_hid_generic_in_report_get(app_usbd_hid_generic_t const * p_generic,
- size_t * p_size)
- {
- app_usbd_hid_inst_t const * p_hinst = &p_generic->specific.inst.hid_inst;
- *p_size = p_hinst->p_rep_buffer_in->size;
- return p_hinst->p_rep_buffer_in->p_buff;
- }
- const void * app_usbd_hid_generic_out_report_get(app_usbd_hid_generic_t const * p_generic,
- size_t * p_size)
- {
- app_usbd_hid_inst_t const * p_hinst = &p_generic->specific.inst.hid_inst;
- *p_size = p_hinst->p_rep_buffer_out->size;
- return p_hinst->p_rep_buffer_out->p_buff;
- }
- const void * app_usbd_hid_generic_feature_report_get(app_usbd_hid_generic_t const * p_generic,
- size_t * p_size)
- {
- app_usbd_hid_inst_t const * p_hinst = &p_generic->specific.inst.hid_inst;
- *p_size = p_hinst->p_rep_buffer_feature->size;
- return p_hinst->p_rep_buffer_feature->p_buff;
- }
- /**
- * @brief @ref app_usbd_hid_interface_t::on_get_report
- */
- static ret_code_t hid_generic_on_get_report(app_usbd_class_inst_t const * p_inst,
- app_usbd_setup_evt_t const * p_setup_ev)
- {
- app_usbd_hid_generic_t const * p_hinst = hid_generic_get(p_inst);
- uint8_t const * p_rep_buffer = NULL;
- size_t buffer_size = 0;
- if (p_setup_ev->setup.wValue.hb == APP_USBD_HID_REPORT_TYPE_INPUT)
- {
- p_rep_buffer = app_usbd_hid_generic_in_report_get(p_hinst, &buffer_size);
- }
- else if (p_setup_ev->setup.wValue.hb == APP_USBD_HID_REPORT_TYPE_OUTPUT)
- {
- p_rep_buffer = app_usbd_hid_generic_out_report_get(p_hinst, &buffer_size);
- }
- else if (p_setup_ev->setup.wValue.hb == APP_USBD_HID_REPORT_TYPE_FEATURE)
- {
- p_rep_buffer = app_usbd_hid_generic_feature_report_get(p_hinst, &buffer_size);
- }
- else
- {
- return NRF_ERROR_NOT_SUPPORTED;
- }
- return app_usbd_core_setup_rsp(&(p_setup_ev->setup), p_rep_buffer, buffer_size);
- }
- static ret_code_t hid_generic_on_set_report_data_cb(nrf_drv_usbd_ep_status_t status,
- void * p_context)
- {
- app_usbd_hid_user_ev_handler_t handler;
- app_usbd_hid_generic_t const * p_generic = (app_usbd_hid_generic_t const *)p_context;
- if (status != NRF_USBD_EP_OK)
- {
- return NRF_ERROR_INTERNAL;
- }
- handler = p_generic->specific.inst.hid_inst.user_event_handler;
- handler((app_usbd_class_inst_t const *)p_generic,
- APP_USBD_HID_USER_EVT_OUT_REPORT_READY);
- return NRF_SUCCESS;
- }
- static ret_code_t hid_generic_on_set_report_feature_data_cb(nrf_drv_usbd_ep_status_t status,
- void * p_context)
- {
- app_usbd_hid_user_ev_handler_t handler;
- app_usbd_hid_generic_t const * p_generic = (app_usbd_hid_generic_t const *)p_context;
- if (status != NRF_USBD_EP_OK)
- {
- return NRF_ERROR_INTERNAL;
- }
- handler = p_generic->specific.inst.hid_inst.user_event_handler;
- handler((app_usbd_class_inst_t const *)p_generic,
- APP_USBD_HID_USER_EVT_FEATURE_REPORT_READY);
- return NRF_SUCCESS;
- }
- /**
- * @brief @ref app_usbd_hid_interface_t::on_set_report
- */
- static ret_code_t hid_generic_on_set_report(app_usbd_class_inst_t const * p_inst,
- app_usbd_setup_evt_t const * p_setup_ev)
- {
- if (p_setup_ev->setup.wValue.hb == APP_USBD_HID_REPORT_TYPE_OUTPUT)
- {
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- /*Request setup data*/
- app_usbd_hid_report_buffer_t const * p_rep_buff;
- p_rep_buff = app_usbd_hid_rep_buff_out_get(&p_generic->specific.inst.hid_inst);
- p_rep_buff->p_buff[0] = p_setup_ev->setup.wValue.lb;
- NRF_DRV_USBD_TRANSFER_OUT(transfer, p_rep_buff->p_buff + 1, p_rep_buff->size - 1);
- ret_code_t ret;
- CRITICAL_REGION_ENTER();
- ret = app_usbd_ep_transfer(NRF_DRV_USBD_EPOUT0, &transfer);
- if (ret == NRF_SUCCESS)
- {
- app_usbd_core_setup_data_handler_desc_t desc = {
- .handler = hid_generic_on_set_report_data_cb,
- .p_context = (void *)p_generic
- };
- ret = app_usbd_core_setup_data_handler_set(NRF_DRV_USBD_EPOUT0, &desc);
- }
- CRITICAL_REGION_EXIT();
- return ret;
- }
- else if (p_setup_ev->setup.wValue.hb == APP_USBD_HID_REPORT_TYPE_FEATURE)
- {
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- /*Request setup data*/
- app_usbd_hid_report_buffer_t const * p_rep_buff;
- p_rep_buff = app_usbd_hid_rep_buff_feature_get(&p_generic->specific.inst.hid_inst);
- NRF_DRV_USBD_TRANSFER_OUT(transfer, p_rep_buff->p_buff, p_rep_buff->size);
- ret_code_t ret;
- CRITICAL_REGION_ENTER();
- ret = app_usbd_ep_transfer(NRF_DRV_USBD_EPOUT0, &transfer);
- if (ret == NRF_SUCCESS)
- {
- app_usbd_core_setup_data_handler_desc_t desc = {
- .handler = hid_generic_on_set_report_feature_data_cb,
- .p_context = (void *)p_generic
- };
- ret = app_usbd_core_setup_data_handler_set(NRF_DRV_USBD_EPOUT0, &desc);
- }
- CRITICAL_REGION_EXIT();
- return ret;
- }
- return NRF_ERROR_NOT_SUPPORTED;
- }
- /**
- * @brief @ref app_usbd_hid_interface_t::ep_transfer_in
- */
- static ret_code_t hid_generic_ep_transfer_in(app_usbd_class_inst_t const * p_inst)
- {
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- app_usbd_hid_generic_ctx_t * p_generic_ctx = hid_generic_ctx_get(p_generic);
- nrf_queue_t const * p_rep_in_queue = p_generic->specific.inst.p_rep_in_queue;
- if (nrf_queue_is_empty(p_rep_in_queue))
- {
- app_usbd_hid_state_flag_clr(&p_generic_ctx->hid_ctx,
- APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);
- return NRF_SUCCESS;
- }
- /* Get next report to send */
- return hid_generic_transfer_set((app_usbd_hid_generic_t const *)p_inst);
- }
- /**
- * @brief @ref app_usbd_hid_interface_t::ep_transfer_out
- */
- static ret_code_t hid_generic_ep_transfer_out(app_usbd_class_inst_t const * p_inst)
- {
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- nrf_drv_usbd_ep_t ep_addr = app_usbd_hid_epout_addr_get(p_inst);
- /*Request setup data*/
- app_usbd_hid_report_buffer_t const * p_rep_buff;
- p_rep_buff = app_usbd_hid_rep_buff_out_get(&p_generic->specific.inst.hid_inst);
- NRF_DRV_USBD_TRANSFER_OUT(transfer, p_rep_buff->p_buff, p_rep_buff->size);
- return app_usbd_ep_transfer(ep_addr, &transfer);
- }
- /**
- * @brief @ref app_usbd_class_interface_t::event_handler
- */
- static ret_code_t hid_generic_event_handler(app_usbd_class_inst_t const * p_inst,
- app_usbd_complex_evt_t const * p_event)
- {
- ASSERT(p_inst != NULL);
- ASSERT(p_event != NULL);
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- app_usbd_hid_inst_t const * p_hinst = &p_generic->specific.inst.hid_inst;
- app_usbd_hid_generic_ctx_t * p_generic_ctx = hid_generic_ctx_get(p_generic);
- app_usbd_hid_ctx_t * p_hid_ctx = &p_generic_ctx->hid_ctx;
- /*Try handle event by generic HID event handler*/
- return app_usbd_hid_event_handler(p_inst, p_hinst, p_hid_ctx, p_event);
- }
- static uint8_t hid_generic_get_class_descriptors_count(app_usbd_class_inst_t const * p_inst)
- {
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- app_usbd_hid_inst_t const * p_hinst = &p_generic->specific.inst.hid_inst;
- return p_hinst->subclass_desc_count;
- }
- static app_usbd_descriptor_t hid_generic_get_class_descriptors_type(
- app_usbd_class_inst_t const * p_inst,
- uint8_t desc_num)
- {
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- app_usbd_hid_inst_t const * p_hinst = &p_generic->specific.inst.hid_inst;
- return p_hinst->p_subclass_desc[desc_num]->type;
- }
- static size_t hid_generic_get_class_descriptors_length(app_usbd_class_inst_t const * p_inst,
- uint8_t desc_num)
- {
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- app_usbd_hid_inst_t const * p_hinst = &p_generic->specific.inst.hid_inst;
- return p_hinst->p_subclass_desc[desc_num]->size;
- }
- static const uint8_t * hid_generic_get_class_descriptors_data(app_usbd_class_inst_t const * p_inst,
- uint8_t desc_num,
- uint32_t cur_byte)
- {
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- app_usbd_hid_inst_t const * p_hinst = &p_generic->specific.inst.hid_inst;
- const uint8_t * p_byte = &p_hinst->p_subclass_desc[desc_num]->p_data[cur_byte];
- return p_byte;
- }
- /**
- * @brief @ref app_usbd_class_interface_t::feed_descriptors
- */
- static bool hid_generic_feed_descriptors(app_usbd_class_descriptor_ctx_t * p_ctx,
- app_usbd_class_inst_t const * p_inst,
- uint8_t * p_buff,
- size_t max_size)
- {
- static uint8_t ifaces = 0;
- ifaces = app_usbd_class_iface_count_get(p_inst);
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- APP_USBD_CLASS_DESCRIPTOR_BEGIN(p_ctx, p_buff, max_size);
- static uint8_t i = 0;
- for (i = 0; i < ifaces; i++)
- {
- /* INTERFACE DESCRIPTOR */
- APP_USBD_CLASS_DESCRIPTOR_WRITE(0x09); // bLength
- APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_DESCRIPTOR_INTERFACE); // bDescriptorType = Interface
- static app_usbd_class_iface_conf_t const * p_cur_iface = NULL;
- p_cur_iface = app_usbd_class_iface_get(p_inst, i);
- APP_USBD_CLASS_DESCRIPTOR_WRITE(app_usbd_class_iface_number_get(p_cur_iface)); // bInterfaceNumber
- APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // bAlternateSetting
- APP_USBD_CLASS_DESCRIPTOR_WRITE(app_usbd_class_iface_ep_count_get(p_cur_iface)); // bNumEndpoints
- APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_HID_CLASS); // bInterfaceClass = HID
- APP_USBD_CLASS_DESCRIPTOR_WRITE(p_generic->specific.inst.hid_inst.subclass_boot); // bInterfaceSubclass (Boot Interface)
- APP_USBD_CLASS_DESCRIPTOR_WRITE(p_generic->specific.inst.hid_inst.protocol); // bInterfaceProtocol
- APP_USBD_CLASS_DESCRIPTOR_WRITE(0x00); // iInterface
- /* HID DESCRIPTOR */
- APP_USBD_CLASS_DESCRIPTOR_WRITE(0x09); // bLength
- APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_HID_DESCRIPTOR_HID); // bDescriptorType = HID
- APP_USBD_CLASS_DESCRIPTOR_WRITE(LSB_16(APP_USBD_HID_BCD_VER)); // bcdHID LSB
- APP_USBD_CLASS_DESCRIPTOR_WRITE(MSB_16(APP_USBD_HID_BCD_VER)); // bcdHID MSB
- APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_HID_COUNTRY_NOT_SUPPORTED); // bCountryCode
- APP_USBD_CLASS_DESCRIPTOR_WRITE(hid_generic_get_class_descriptors_count(p_inst)); // bNumDescriptors
- static uint8_t class_desc_cnt = 0;
- class_desc_cnt = hid_generic_get_class_descriptors_count(p_inst);
- static uint8_t j = 0;
- static uint16_t class_desc_len = 0;
- for (j = 0; j < class_desc_cnt; j++)
- {
- APP_USBD_CLASS_DESCRIPTOR_WRITE(hid_generic_get_class_descriptors_type(p_inst, j)); // bDescriptorType
- class_desc_len = hid_generic_get_class_descriptors_length(p_inst, j);
- APP_USBD_CLASS_DESCRIPTOR_WRITE(LSB_16(class_desc_len)); // wDescriptorLength LSB
- APP_USBD_CLASS_DESCRIPTOR_WRITE(MSB_16(class_desc_len)); // wDescriptorLength MSB
- }
- static uint8_t endpoints = 0;
- endpoints = app_usbd_class_iface_ep_count_get(p_cur_iface);
- for (j = 0; j < endpoints; j++)
- {
- /* ENDPOINT DESCRIPTOR */
- APP_USBD_CLASS_DESCRIPTOR_WRITE(0x07); // bLength
- APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_DESCRIPTOR_ENDPOINT); // bDescriptorType = Endpoint
- static app_usbd_class_ep_conf_t const * p_cur_ep = NULL;
- p_cur_ep = app_usbd_class_iface_ep_get(p_cur_iface, j);
- APP_USBD_CLASS_DESCRIPTOR_WRITE(app_usbd_class_ep_address_get(p_cur_ep)); // bEndpointAddress
- APP_USBD_CLASS_DESCRIPTOR_WRITE(APP_USBD_DESCRIPTOR_EP_ATTR_TYPE_INTERRUPT); // bmAttributes
- APP_USBD_CLASS_DESCRIPTOR_WRITE(LSB_16(NRF_DRV_USBD_EPSIZE)); // wMaxPacketSize LSB
- APP_USBD_CLASS_DESCRIPTOR_WRITE(MSB_16(NRF_DRV_USBD_EPSIZE)); // wMaxPacketSize MSB
- APP_USBD_CLASS_DESCRIPTOR_WRITE(p_generic->specific.inst.hid_inst.p_ep_interval[j]); // bInterval
- }
- }
- APP_USBD_CLASS_DESCRIPTOR_END();
- }
- ret_code_t hid_generic_on_set_protocol(app_usbd_hid_generic_t const * p_generic, app_usbd_hid_user_event_t ev)
- {
- app_usbd_hid_generic_ctx_t * p_generic_ctx = hid_generic_ctx_get(p_generic);
- if (ev == APP_USBD_HID_USER_EVT_SET_BOOT_PROTO)
- {
- p_generic_ctx->hid_ctx.selected_protocol = APP_USBD_HID_PROTO_BOOT;
- }
- else if (ev == APP_USBD_HID_USER_EVT_SET_REPORT_PROTO)
- {
- p_generic_ctx->hid_ctx.selected_protocol = APP_USBD_HID_PROTO_REPORT;
- }
- else
- {
- return NRF_ERROR_NOT_SUPPORTED;
- }
- return NRF_SUCCESS;
- }
- ret_code_t hid_generic_idle_handler_set(app_usbd_class_inst_t const * p_inst,
- app_usbd_hid_idle_handler_t handler)
- {
- ASSERT(handler != NULL);
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- app_usbd_hid_generic_ctx_t * p_generic_ctx = hid_generic_ctx_get(p_generic);
- p_generic_ctx->hid_ctx.idle_handler = handler;
- return NRF_SUCCESS;
- }
- static ret_code_t hid_generic_on_idle(app_usbd_class_inst_t const * p_inst, uint8_t report_id)
- {
- app_usbd_hid_generic_t const * p_generic = hid_generic_get(p_inst);
- app_usbd_hid_generic_ctx_t * p_generic_ctx = hid_generic_ctx_get(p_generic);
-
- if(p_generic_ctx->hid_ctx.idle_handler != NULL)
- {
- return p_generic_ctx->hid_ctx.idle_handler(p_inst, report_id);
- }
- else
- {
- return NRF_ERROR_NOT_SUPPORTED;
- }
- }
- /** @} */
- const app_usbd_hid_methods_t app_usbd_hid_generic_methods = {
- .on_get_report = hid_generic_on_get_report,
- .on_set_report = hid_generic_on_set_report,
- .ep_transfer_in = hid_generic_ep_transfer_in,
- .ep_transfer_out = hid_generic_ep_transfer_out,
- .subclass_count = hid_generic_get_class_descriptors_count,
- .subclass_length = hid_generic_get_class_descriptors_length,
- .subclass_data = hid_generic_get_class_descriptors_data,
- .on_idle = hid_generic_on_idle,
- .set_idle_handler = hid_generic_idle_handler_set,
- };
- const app_usbd_class_methods_t app_usbd_generic_class_methods = {
- .event_handler = hid_generic_event_handler,
- .feed_descriptors = hid_generic_feed_descriptors,
- };
- #endif //NRF_MODULE_ENABLED(APP_USBD_HID_GENERIC)
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