123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613 |
- /**
- * 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_KBD)
- #include <string.h>
- #include "app_usbd_hid_kbd.h"
- #include "app_util_platform.h"
- /**
- * @defgroup app_usbd_hid_kbd_internals USB HID keyboard internals
- * @{
- * @ingroup app_usbd_hid_kbd
- * @internal
- */
- STATIC_ASSERT(sizeof(app_usbd_hid_descriptor_t) == 6);
- /**
- * @brief Auxiliary function to access HID keyboard context data.
- *
- * @param[in] p_inst class instance data.
- *
- * @return HID keyboard instance data context.
- */
- static inline app_usbd_hid_kbd_ctx_t * hid_kbd_ctx_get(app_usbd_hid_kbd_t const * p_kbd)
- {
- ASSERT(p_kbd != NULL);
- ASSERT(p_kbd->specific.p_data != NULL);
- return &p_kbd->specific.p_data->ctx;
- }
- /**
- * @brief Auxiliary function to access HID keyboard instance data.
- *
- * @param[in] p_inst class instance data.
- *
- * @return HID keyboard instance data.
- */
- static inline app_usbd_hid_kbd_t const * hid_kbd_get(app_usbd_class_inst_t const * p_inst)
- {
- ASSERT(p_inst != NULL);
- return (app_usbd_hid_kbd_t const *)p_inst;
- }
- /**
- * @brief Returns keyboard report buffer handle.
- *
- * @param[in] p_kbd HID keyboard instance.
- *
- * @return HID report buffer.
- */
- static inline
- app_usbd_hid_report_buffer_t const * hid_kbd_rep_buffer_get(app_usbd_hid_kbd_t const * p_kbd)
- {
- ASSERT(p_kbd != NULL);
- app_usbd_hid_inst_t const * p_hinst = &p_kbd->specific.inst.hid_inst;
- app_usbd_hid_kbd_ctx_t * p_kbd_ctx = hid_kbd_ctx_get(p_kbd);
- app_usbd_hid_report_buffer_t * p_rep_buff = app_usbd_hid_rep_buff_in_get(p_hinst);
- p_rep_buff->p_buff = p_kbd_ctx->report_buff;
- p_rep_buff->size = sizeof(p_kbd_ctx->report_buff);
- /*Keyboard has only one report input/output report buffer */
- return app_usbd_hid_rep_buff_in_get(p_hinst);
- }
- /**
- * @brief Auxiliary function to prepare report transfer buffer to next transfer.
- *
- * @param[in] p_kbd HID keyboard instance.
- *
- * @retval true Next transfer is required.
- * @retval false Next transfer is not required.
- */
- static inline bool hid_kbd_transfer_next(app_usbd_hid_kbd_t const * p_kbd)
- {
- /*Send report only when state has changed*/
- app_usbd_hid_report_buffer_t const * p_rep_buffer = hid_kbd_rep_buffer_get(p_kbd);
- app_usbd_hid_kbd_ctx_t * p_kbd_ctx = hid_kbd_ctx_get(p_kbd);
- if (memcmp(p_rep_buffer->p_buff, &p_kbd_ctx->rep, p_rep_buffer->size))
- {
- memcpy(p_rep_buffer->p_buff, &p_kbd_ctx->rep, p_rep_buffer->size);
- return true;
- }
- return false;
- }
- /**
- * @brief Triggers IN endpoint transfer.
- *
- * @param[in] p_kbd HID keyboard instance.
- *
- * @return Standard error code.
- */
- static inline ret_code_t hid_kbd_transfer_set(app_usbd_hid_kbd_t const * p_kbd)
- {
- app_usbd_class_inst_t const * p_inst = (app_usbd_class_inst_t const *)p_kbd;
- app_usbd_hid_kbd_ctx_t * p_kbd_ctx = hid_kbd_ctx_get(p_kbd);
- nrf_drv_usbd_ep_t ep_addr = app_usbd_hid_epin_addr_get(p_inst);
- app_usbd_hid_state_flag_clr(&p_kbd_ctx->hid_ctx, APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);
- if (!hid_kbd_transfer_next(p_kbd))
- {
- /* Transfer buffer hasn't changed since last transfer. No need to setup
- * next transfer.
- * */
- return NRF_SUCCESS;
- }
- app_usbd_hid_report_buffer_t const * p_rep_buffer = hid_kbd_rep_buffer_get(p_kbd);
- NRF_DRV_USBD_TRANSFER_IN(transfer, p_rep_buffer->p_buff, p_rep_buffer->size);
- ret_code_t ret;
- CRITICAL_REGION_ENTER();
- ret = app_usbd_ep_transfer(ep_addr, &transfer);
- if (ret == NRF_SUCCESS)
- {
- app_usbd_hid_state_flag_set(&p_kbd_ctx->hid_ctx, APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);
- }
- CRITICAL_REGION_EXIT();
- return ret;
- }
- ret_code_t app_usbd_hid_kbd_modifier_state_set(app_usbd_hid_kbd_t const * p_kbd,
- app_usbd_hid_kbd_modifier_t modifier,
- bool state)
- {
- app_usbd_hid_kbd_ctx_t * p_kbd_ctx = hid_kbd_ctx_get(p_kbd);
- bool actual_state = (p_kbd_ctx->rep.modifier & modifier) != 0;
- if (actual_state == state)
- {
- /*Modifier has already the same state*/
- return NRF_SUCCESS;
- }
- app_usbd_hid_access_lock(&p_kbd_ctx->hid_ctx);
- if (state)
- {
- p_kbd_ctx->rep.modifier |= modifier;
- }
- else
- {
- p_kbd_ctx->rep.modifier &= ~modifier;
- }
- app_usbd_hid_access_unlock(&p_kbd_ctx->hid_ctx);
- if (app_usbd_hid_trans_required(&p_kbd_ctx->hid_ctx))
- {
- /*New transfer need to be triggered*/
- return hid_kbd_transfer_set(p_kbd);
- }
- return NRF_SUCCESS;
- }
- ret_code_t app_usbd_hid_kbd_key_control(app_usbd_hid_kbd_t const * p_kbd,
- app_usbd_hid_kbd_codes_t key,
- bool press)
- {
- app_usbd_hid_kbd_ctx_t * p_kbd_ctx = hid_kbd_ctx_get(p_kbd);
- uint8_t * destination = NULL;
- if (press)
- {
- for (size_t i = 0; i < ARRAY_SIZE(p_kbd_ctx->rep.key_table); ++i)
- {
- if (p_kbd_ctx->rep.key_table[i] == key)
- {
- /*Already pressed*/
- return NRF_SUCCESS;
- }
- if ((destination == NULL) && (p_kbd_ctx->rep.key_table[i] == 0))
- {
- destination = &p_kbd_ctx->rep.key_table[i];
- }
- }
- if (destination == NULL)
- {
- return NRF_ERROR_BUSY;
- }
- }
- else
- {
- /*Find if key is pressed*/
- for (size_t i = 0; i < ARRAY_SIZE(p_kbd_ctx->rep.key_table); ++i)
- {
- if (p_kbd_ctx->rep.key_table[i] == key)
- {
- destination = &p_kbd_ctx->rep.key_table[i];
- break;
- }
- }
- if (destination == NULL)
- {
- /*Key hasn't been pressed*/
- return NRF_SUCCESS;
- }
- }
- /*Save destination*/
- app_usbd_hid_access_lock(&p_kbd_ctx->hid_ctx);
- *destination = press ? key : 0;
- app_usbd_hid_access_unlock(&p_kbd_ctx->hid_ctx);
- if (app_usbd_hid_trans_required(&p_kbd_ctx->hid_ctx))
- {
- /*New transfer need to be triggered*/
- return hid_kbd_transfer_set(p_kbd);
- }
- return NRF_SUCCESS;
- }
- bool app_usbd_hid_kbd_led_state_get(app_usbd_hid_kbd_t const * p_kbd,
- app_usbd_hid_kbd_led_t led)
- {
- app_usbd_hid_kbd_ctx_t * p_kbd_ctx = hid_kbd_ctx_get(p_kbd);
- return (p_kbd_ctx->leds_state & led) != 0;
- }
- const void * app_usbd_hid_kbd_in_report_get(app_usbd_hid_kbd_t const * p_kbd,
- size_t * p_size)
- {
- app_usbd_hid_inst_t const * p_kinst = &p_kbd->specific.inst.hid_inst;
- *p_size = p_kinst->p_rep_buffer_in->size;
- return p_kinst->p_rep_buffer_in->p_buff;
- }
- const void * app_usbd_hid_kbd_out_report_get(app_usbd_hid_kbd_t const * p_kbd,
- size_t * p_size)
- {
- app_usbd_hid_inst_t const * p_kinst = &p_kbd->specific.inst.hid_inst;
- *p_size = p_kinst->p_rep_buffer_out->size;
- return p_kinst->p_rep_buffer_out->p_buff;
- }
- /**
- * @brief @ref app_usbd_hid_interface_t::on_get_report
- */
- static ret_code_t hid_kbd_on_get_report(app_usbd_class_inst_t const * p_inst,
- app_usbd_setup_evt_t const * p_setup_ev)
- {
- app_usbd_hid_kbd_t const * p_kinst = hid_kbd_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_kbd_in_report_get(p_kinst, &buffer_size);
- }
- else if (p_setup_ev->setup.wValue.hb == APP_USBD_HID_REPORT_TYPE_OUTPUT)
- {
- p_rep_buffer = app_usbd_hid_kbd_out_report_get(p_kinst, &buffer_size);
- }
- else
- {
- return NRF_ERROR_NOT_SUPPORTED;
- }
- /* Return LEDs state (only the second byte) */
- return app_usbd_core_setup_rsp(&(p_setup_ev->setup), p_rep_buffer + 1, buffer_size - 1);
- }
- static ret_code_t hid_kbd_on_set_report_data_cb(nrf_drv_usbd_ep_status_t status, void * p_context)
- {
- if (status != NRF_USBD_EP_OK)
- {
- return NRF_ERROR_INTERNAL;
- }
- app_usbd_hid_kbd_t const * p_kbd = p_context;
- app_usbd_hid_report_buffer_t const * p_rep_buff;
- p_rep_buff = app_usbd_hid_rep_buff_out_get(&p_kbd->specific.inst.hid_inst);
- /*Update LEDs state*/
- app_usbd_hid_kbd_ctx_t * p_kbd_ctx = hid_kbd_ctx_get(p_kbd);
- p_kbd_ctx->leds_state = p_rep_buff->p_buff[1];
- app_usbd_hid_user_ev_handler_t handler = p_kbd->specific.inst.hid_inst.user_event_handler;
- handler((app_usbd_class_inst_t const *)(p_kbd), APP_USBD_HID_USER_EVT_OUT_REPORT_READY);
- return NRF_SUCCESS;
- }
- /**
- * @brief @ref app_usbd_hid_interface_t::hid_kbd_on_set_report
- */
- static ret_code_t hid_kbd_on_set_report(app_usbd_class_inst_t const * p_inst,
- app_usbd_setup_evt_t const * p_setup_ev)
- {
- app_usbd_hid_kbd_t const * p_kbd = hid_kbd_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_kbd->specific.inst.hid_inst);
- p_rep_buff->p_buff[0] = 0;
- 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_kbd_on_set_report_data_cb,
- .p_context = (app_usbd_hid_kbd_t *)p_kbd
- };
- ret = app_usbd_core_setup_data_handler_set(NRF_DRV_USBD_EPOUT0, &desc);
- }
- CRITICAL_REGION_EXIT();
- return ret;
- }
- /**
- * @brief @ref app_usbd_hid_interface_t::hid_kbd_ep_transfer_in
- */
- static ret_code_t hid_kbd_ep_transfer_in(app_usbd_class_inst_t const * p_inst)
- {
- return hid_kbd_transfer_set((app_usbd_hid_kbd_t const *)p_inst);
- }
- /**
- * @brief @ref app_usbd_class_interface_t::event_handler
- */
- static ret_code_t hid_kbd_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_kbd_t const * p_kbd = hid_kbd_get(p_inst);
- app_usbd_hid_inst_t const * p_hinst = &p_kbd->specific.inst.hid_inst;
- app_usbd_hid_kbd_ctx_t * p_kbd_ctx = hid_kbd_ctx_get(p_kbd);
- app_usbd_hid_ctx_t * p_hid_ctx = &p_kbd_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);
- }
- ret_code_t hid_kbd_clear_buffer(app_usbd_class_inst_t const * p_inst)
- {
- ASSERT(p_inst != NULL);
- app_usbd_hid_kbd_t const * p_kbd = hid_kbd_get(p_inst);
- app_usbd_hid_kbd_ctx_t * p_kbd_ctx = hid_kbd_ctx_get(p_kbd);
- app_usbd_hid_report_buffer_t const * p_rep_buffer = hid_kbd_rep_buffer_get(p_kbd);
- memset(p_rep_buffer->p_buff, 0, p_rep_buffer->size);
- memset(p_kbd_ctx->report_buff, 0, p_rep_buffer->size);
- memset(&p_kbd_ctx->rep, 0, p_rep_buffer->size);
-
- CRITICAL_REGION_ENTER();
-
-
- nrf_drv_usbd_ep_t ep_addr = app_usbd_hid_epin_addr_get(p_inst);
- ASSERT(!NRF_USBD_EPISO_CHECK(ep_addr));
- if (NRF_USBD_EPIN_CHECK(ep_addr))
- {
- nrf_drv_usbd_ep_abort(ep_addr);
- }
- app_usbd_hid_state_flag_clr(&p_kbd_ctx->hid_ctx, APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);
- CRITICAL_REGION_EXIT();
-
- return NRF_SUCCESS;
- }
- static uint8_t hid_kbd_get_class_descriptors_count(app_usbd_class_inst_t const * p_inst)
- {
- app_usbd_hid_kbd_t const * p_kbd = hid_kbd_get(p_inst);
- app_usbd_hid_inst_t const * p_hinst = &p_kbd->specific.inst.hid_inst;
- return p_hinst->subclass_desc_count;
- }
- static app_usbd_descriptor_t hid_kbd_get_class_descriptors_type(
- app_usbd_class_inst_t const * p_inst,
- uint8_t desc_num)
- {
- app_usbd_hid_kbd_t const * p_kbd = hid_kbd_get(p_inst);
- app_usbd_hid_inst_t const * p_hinst = &p_kbd->specific.inst.hid_inst;
- return p_hinst->p_subclass_desc[desc_num]->type;
- }
- static size_t hid_kbd_get_class_descriptors_length(app_usbd_class_inst_t const * p_inst,
- uint8_t desc_num)
- {
- app_usbd_hid_kbd_t const * p_kbd = hid_kbd_get(p_inst);
- app_usbd_hid_inst_t const * p_hinst = &p_kbd->specific.inst.hid_inst;
- return p_hinst->p_subclass_desc[desc_num]->size;
- }
- static const uint8_t * hid_kbd_get_class_descriptors_data(app_usbd_class_inst_t const * p_inst,
- uint8_t desc_num,
- uint32_t cur_byte)
- {
- app_usbd_hid_kbd_t const * p_kbd = hid_kbd_get(p_inst);
- app_usbd_hid_inst_t const * p_hinst = &p_kbd->specific.inst.hid_inst;
- const uint8_t * p_byte = &p_hinst->p_subclass_desc[desc_num]->p_data[cur_byte];
- return p_byte;
- }
- static bool hid_kbd_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_kbd_t const * p_kbd = hid_kbd_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_kbd->specific.inst.hid_inst.subclass_boot); // bInterfaceSubclass (Boot Interface)
- APP_USBD_CLASS_DESCRIPTOR_WRITE(p_kbd->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_kbd_get_class_descriptors_count(p_inst)); // bNumDescriptors
- static uint8_t class_desc_cnt = 0;
- class_desc_cnt = hid_kbd_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_kbd_get_class_descriptors_type(p_inst, j)); // bDescriptorType
- class_desc_len = hid_kbd_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_kbd->specific.inst.hid_inst.p_ep_interval[j]); // bInterval
- }
- }
- APP_USBD_CLASS_DESCRIPTOR_END();
- }
- ret_code_t hid_kbd_on_set_protocol(app_usbd_hid_kbd_t const * p_kbd, app_usbd_hid_user_event_t ev)
- {
- app_usbd_hid_kbd_ctx_t * p_kbd_ctx = hid_kbd_ctx_get(p_kbd);
- if (ev == APP_USBD_HID_USER_EVT_SET_BOOT_PROTO)
- {
- p_kbd_ctx->hid_ctx.selected_protocol = APP_USBD_HID_PROTO_BOOT;
- }
- else if (ev == APP_USBD_HID_USER_EVT_SET_REPORT_PROTO)
- {
- p_kbd_ctx->hid_ctx.selected_protocol = APP_USBD_HID_PROTO_REPORT;
- }
- else
- {
- return NRF_ERROR_NOT_SUPPORTED;
- }
- return NRF_SUCCESS;
- }
- static ret_code_t hid_kbd_on_idle(app_usbd_class_inst_t const * p_inst, uint8_t report_id)
- {
- UNUSED_PARAMETER(report_id);
- app_usbd_hid_kbd_t const * p_kbd = (app_usbd_hid_kbd_t const *)p_inst;
- app_usbd_hid_kbd_ctx_t * p_kbd_ctx = hid_kbd_ctx_get(p_kbd);
- nrf_drv_usbd_ep_t ep_addr = app_usbd_hid_epin_addr_get(p_inst);
- app_usbd_hid_state_flag_clr(&p_kbd_ctx->hid_ctx, APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);
- app_usbd_hid_report_buffer_t const * p_rep_buffer = hid_kbd_rep_buffer_get(p_kbd);
- NRF_DRV_USBD_TRANSFER_IN(transfer, p_rep_buffer->p_buff, p_rep_buffer->size);
- UNUSED_RETURN_VALUE(hid_kbd_transfer_next(p_kbd));
- ret_code_t ret;
- CRITICAL_REGION_ENTER();
- ret = app_usbd_ep_transfer(ep_addr, &transfer);
- if (ret == NRF_SUCCESS)
- {
- app_usbd_hid_state_flag_set(&p_kbd_ctx->hid_ctx, APP_USBD_HID_STATE_FLAG_TRANS_IN_PROGRESS);
- }
- CRITICAL_REGION_EXIT();
-
- return NRF_SUCCESS;
- }
- /** @} */
- const app_usbd_hid_methods_t app_usbd_hid_kbd_methods = {
- .on_get_report = hid_kbd_on_get_report,
- .on_set_report = hid_kbd_on_set_report,
- .ep_transfer_in = hid_kbd_ep_transfer_in,
- .ep_transfer_out = NULL,
- .subclass_count = hid_kbd_get_class_descriptors_count,
- .subclass_length = hid_kbd_get_class_descriptors_length,
- .subclass_data = hid_kbd_get_class_descriptors_data,
- .on_idle = hid_kbd_on_idle,
- };
- const app_usbd_class_methods_t app_usbd_hid_kbd_class_methods = {
- .event_handler = hid_kbd_event_handler,
- .feed_descriptors = hid_kbd_feed_descriptors,
- };
- #endif //NRF_MODULE_ENABLED(APP_USBD_HID_KBD)
|