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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/app_usbd.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/app_usbd.h new file mode 100644 index 0000000..f63e63c --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/app_usbd.h @@ -0,0 +1,745 @@ +/** + * 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. + * + */ + +#ifndef APP_USBD_H__ +#define APP_USBD_H__ + +#include "nrf_drv_usbd.h" +#include "app_usbd_types.h" +#include "app_usbd_class_base.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @defgroup app_usbd USB Device high level library + * @ingroup app_common + * + * @brief @tagAPI52840 Module for easy support for any USB device configuration. + * + * This module manages class instances that would create the USB device, + * manages endpoints and interfaces transactions. + * @{ + */ + +/** + * @brief True if SOF timestamping is really provided. + * + * SOF timestamping is really provided if it was requested and if the logger is enabled. + */ +#if ((APP_USBD_CONFIG_SOF_TIMESTAMP_PROVIDE) && (NRF_LOG_ENABLED)) +#define APP_USBD_PROVIDE_SOF_TIMESTAMP 1 +#else +#define APP_USBD_PROVIDE_SOF_TIMESTAMP 0 +#endif + +/** + * @brief SOF event handling modes. + */ +#define APP_USBD_SOF_HANDLING_NORMAL_QUEUE 0 //!< Push SOF events into event queue. +#define APP_USBD_SOF_HANDLING_COMPRESS_QUEUE 1 //!< Compress SOF events. +#define APP_USBD_SOF_HANDLING_INTERRUPT 2 //!< Handle SOF events in interrupt. + +/** + * @brief Configuration passed to @ref app_usbd_init. + */ +typedef struct { +#if (!(APP_USBD_CONFIG_EVENT_QUEUE_ENABLE)) || defined(__SDK_DOXYGEN__) + /** + * @brief User defined event handler. + * + * This function is called on every event from the interrupt. + * It is prepared for external user function that would queue events to be processed + * from the main context. + * It should be used with operating systems with its own implementation of the queue. + * + * @param p_event The event structure pointer. + * + * @note This field is available only when USB internal queue is disabled + * (see @ref APP_USBD_CONFIG_EVENT_QUEUE_ENABLE). + */ + void (*ev_handler)(app_usbd_internal_evt_t const * const p_event); +#endif + +#if (APP_USBD_CONFIG_EVENT_QUEUE_ENABLE) || defined(__SDK_DOXYGEN__) + /** + * @brief User defined event handler. + * + * This function is called on every event from the interrupt. + * + * @param p_event The event structure pointer. + * @param queued The event is visible in the queue. + * If queue conflict is detected the event might not be accessible inside queue + * until all write operations finish. + * See @ref nrf_atfifo for more details. + * + * @note This field is available only when USBD internal queue is configured + * (see @ref APP_USBD_CONFIG_EVENT_QUEUE_ENABLE). + * + * @note If is set to NULL no event would be called from interrupt. + * @note This function is called before event is processed. + * It means that if the event type is @ref APP_USBD_EVT_DRV_SETUP, + * there would not be setup field present in the event structure. + */ + void (*ev_isr_handler)(app_usbd_internal_evt_t const * const p_event, bool queued); +#endif + + /** + * @brief User defined event processor + * + * This function is called while state event is processed. + * + * * @note This field is available only when USBD internal queue is configured + * (see @ref APP_USBD_CONFIG_EVENT_QUEUE_ENABLE). + * + * @param event Event type. + * Only following events are sent into this function: + * - APP_USBD_EVT_DRV_SOF + * - APP_USBD_EVT_DRV_RESET - Note that it also exits suspend + * - APP_USBD_EVT_DRV_SUSPEND + * - APP_USBD_EVT_DRV_RESUME - It is also generated when remote wakeup is generated + * - APP_USBD_EVT_START + * - APP_USBD_EVT_STOP + * - APP_USBD_EVT_STATE_CHANGED + */ + void (*ev_state_proc)(app_usbd_event_type_t event); + + /** + * @brief SOF processing required by the user event processing + * + * This flag would enable SOF processing for the user events regardless of the fact if any + * of the implemented class requires SOF event. + * + * @note SOF event would be enabled anyway if any of the appended class requires SOF processing. + */ + bool enable_sof; +} app_usbd_config_t; + + +#if (APP_USBD_PROVIDE_SOF_TIMESTAMP) || defined(__SDK_DOXYGEN__) +/** + * @brief Timestamp function for the logger. + * + * @return Current frame number taken directly from the last processed SOF. + */ +uint32_t app_usbd_sof_timestamp_get(void); +#endif + +/** + * @brief USB library initialization. + * + * Call this function before any configuration or class attachment. + * USBD peripheral would be ready to accept commands, and library would be ready, + * but it would not be connected to the bus. + * Call @ref app_usbd_enable to enable USBD communication with the host. + * + * @param p_config Configuration. NULL pointer might be passed here and default + * configuration will be applied then. + */ +ret_code_t app_usbd_init(app_usbd_config_t const * p_config); + +/** + * @brief USB library un-initialization + * + * @note Currently not supported + */ +ret_code_t app_usbd_uninit(void); + +#if (APP_USBD_CONFIG_POWER_EVENTS_PROCESS) || defined(__SDK_DOXYGEN__) +/** + * @brief Function to start USB related power events processing + * + * This function should be called after @ref app_usbd_init and after all the + * required classes were appended (@ref app_usbd_class_append). + * + * @retval NRF_SUCCESS Power events successfully initialized + * @retval NRF_ERROR_INVALID_STATE The state of the driver does not allow to enable + * the power events processing. + */ +ret_code_t app_usbd_power_events_enable(void); +#endif + +/** + * @brief Enable USBD + * + * USBD is enabled. + * Since now the high frequency clock may be requested when USB RESET would be detected. + */ +void app_usbd_enable(void); + +/** + * @brief Disable USBD + * + * Disabled USDB peripheral cannot be accessed but also stops requesting + * High Frequency clock and releases power regulator. + * + * @note This function cannot be called when USB is started. Stop it first. + */ +void app_usbd_disable(void); + +/** + * @brief Request USBD to start + * + * The function sends start request to the event queue. + * If the queue is enabled (@ref APP_USBD_CONFIG_EVENT_QUEUE_ENABLE) it would be processed + * when the queue is processed. + * If queue is disabled it would be processed immediately inside this function. + * It means that if queue is disabled this function cannot be called from interrupt with priority + * higher than USB interrupt. + * + * When start is processed it would: + * 1. Start library. + * 2. Enable interrupts. + * 3. Enable USB pull-ups. + * + * @note + * In some specific circumstances the library can be left not started and this function would + * silently exit. + * This may happen if some glitches appears on USB power line or if the plug was disconnected before + * whole starting process finishes. + * User would get the event from POWER peripheral then. + * Also no @ref APP_USBD_EVT_STARTED event would be generated to the classes and user event handler. + * For the safe code it is recommended to wait for @ref APP_USBD_EVT_STARTED event if anything + * has to be initialized after USB driver is started (just before enabling the interrupts). + * If library is properly started the @ref APP_USBD_EVT_STARTED event passed to the user handler + * from this function body. + */ +void app_usbd_start(void); + +/** + * @brief Stop USB to work + * + * The function sends stop request to the event queue. + * If the queue is enabled (@ref APP_USBD_CONFIG_EVENT_QUEUE_ENABLE) it would be processed + * when the queue is processed. + * If queue is disabled it would be processed immediately inside this function. + * It means that if queue is disabled this function cannot be called from interrupt with priority + * higher than USB interrupt. + * + * When the event is processed interrupts and USB pull-ups are disabled. + * The peripheral itself is left enabled so it can be programmed, + * but a HOST sees it as a peripheral disconnection. + * + * @note + * If the library is not started when this function is called it exits silently - also + * no @ref APP_USBD_EVT_STOPPED is generated. + */ +void app_usbd_stop(void); + +/** + * @brief Request library to suspend + * + * This function send suspend request to the event queue. + * + * @note This function should only be called after @ref APP_USBD_EVT_DRV_SUSPEND os received. + * Internal suspend request processing would give no effect if the bus is not in suspend state. + */ +void app_usbd_suspend_req(void); + +/** + * @brief Request library to wake-up + * + * This function send wakeup request to the event queue. + * + * @note Calling this function does not mean that peripheral is active - the wakeup request is sent + * into message queue and needs to be processed. + * + * @retval true Wakeup generation has been started. + * @retval false No wakeup would be generated becouse it is disabled by the host. + */ +bool app_usbd_wakeup_req(void); + +/** + * @brief Get information whether there is an active connection. + * + * Function to check if the communication with the bus is possible. + * + * @retval true The bus is active. + * @retval false There is no connection or bus is suspended. + */ +bool app_usbd_active_check(void); + +/** + * @brief USBD event processor + * + * Function to be called on each event to be processed by the library. + */ +void app_usbd_event_execute(app_usbd_internal_evt_t const * const p_event); + + +#if (APP_USBD_CONFIG_EVENT_QUEUE_ENABLE) || defined(__SDK_DOXYGEN__) +/** + * @brief Function that process events from the queue + * + * @note This function calls @ref app_usbd_event_execute internally. + * + * @retval true Event was processed + * @retval false The event queue is empty + */ +bool app_usbd_event_queue_process(void); +#endif + +/** + * @brief Add class instance + * + * This function connects given instance into internal class instance chain and + * into all required endpoints. + * The instance event handler would be connected into endpoint by default, + * but this can be overwritten by @ref app_usbd_ep_handler_set. + * + * After successful attachment @ref APP_USBD_EVT_INST_APPEND would be passed to class instance. + * + * @note This function can only be called after USBD library is initialized but still disabled. + * Assertion would be generated otherwise. + * + * @param[in,out] p_cinst Instance to connect. Chain data would be written into writable instance data. + */ +ret_code_t app_usbd_class_append(app_usbd_class_inst_t const * p_cinst); + +/** + * @brief Remove class instance + * + * Instance is removed from instance chain. + * Instance and event handlers are removed also from endpoints. + * Endpoints used by by the class instance are left disabled. + * + * @note This function can only be called after USBD library is initialized but still disabled. + * Assertion would be generated otherwise. + * + * @param p_cinst Instance pointer to remove. + * + * @retval NRF_SUCCESS Instance successfully removed. + * @retval NRF_ERROR_NOT_FOUND Instance not found in the instance chain. + */ +ret_code_t app_usbd_class_remove(app_usbd_class_inst_t const * p_cinst); + +/** + * @brief Remove all class instances + * + * This function basically calls @ref app_usbd_class_remove + * on instances chain as long as there is any element left. + * + * @note This function can only be called after USBD library is initialized but still disabled. + * Assertion would be generated otherwise. + * + * @sa app_usbd_class_remove + * + * @return Is should always return @ref NRF_SUCCESS. + * Any error value returned would mean there is an error inside the library. + */ +ret_code_t app_usbd_class_remove_all(void); + +/** + * @brief Change endpoint handler + * + * This function may be called for the endpoint only if the class instance is + * already properly attached by the @ref app_usbd_class_append function. + * + * The endpoint event handler function can be only overwritten by the class instance + * that was connected into the endpoint. + * + * @note This function can only be called after USBD library is initialized but still disabled. + * Assertion would be generated otherwise. + * + * @param[in] p_cinst Instance of a class that wish to set new event handler. + * It has to match currently configured instance for the selected endpoint. + * In other situation error would be returned. + * @param[in] ep Endpoint address to configure. + * @param[in] handler Event handler function to set. + * + * @retval NRF_SUCCESS New handler successfully set + * @retval NRF_ERROR_INVALID_PARAM p_cinst is not the same as currently set for the endpoint + */ +ret_code_t app_usbd_ep_handler_set(app_usbd_class_inst_t const * p_cinst, + nrf_drv_usbd_ep_t ep, + app_usbd_ep_event_handler_t handler); + +/** + * @brief Register class instance as the one that requires SOF events + * + * This function should be called in reaction on APP_USBD_EVT_INST_APPEND event. + * Connect the class instance to the list of instances that requires SOF processing. + * If none of the appended instances requires SOF event - it is disabled. + * + * @param p_cinst Instance that requires SOF event. + * + * @retval NRF_SUCCESS Instance linked into SOF processing list. + * + * @sa app_usbd_class_sof_unregister + */ +ret_code_t app_usbd_class_sof_register(app_usbd_class_inst_t const * p_cinst); + +/** + * @brief Unregister class instance from SOF processing instances list + * + * Every class that calls @ref app_usbd_class_sof_register have to call also unregistering function + * in reaction to @ref APP_USBD_EVT_INST_REMOVE event. + * + * @param p_cinst Instance to be unregistered from SOF event processing list. + * + * @retval NRF_SUCCESS Instance linked into SOF processing list. + * @retval NRF_ERROR_NOT_FOUND Instance not found in the SOF processing list. + * + * @sa app_usbd_class_sof_register + */ +ret_code_t app_usbd_class_sof_unregister(app_usbd_class_inst_t const * p_cinst); + +/** + * @brief Register class on remote wake-up feature + * + * @param[in] p_inst Instance of the class + * + * @retval NRF_SUCCESS Instance that requires remote wake-up registered + */ +ret_code_t app_usbd_class_rwu_register(app_usbd_class_inst_t const * const p_inst); + +/** + * @brief Unregister class from remote wake-up feature + * + * @param[in] p_inst Instance of the class + * + * @retval NRF_SUCCESS Instance that requires remote wake-up removed + */ +ret_code_t app_usbd_class_rwu_unregister(app_usbd_class_inst_t const * const p_inst); + +/** + * @brief Check if there is any class with remote wakeup + * + * The function checks internal registered class with remote wakeup counter. + * + * @sa app_usbd_class_rwu_register, app_usbd_class_rwu_unregister + * + * @retval true The remote wakeup functionality is required by some class instance + * @retval false There is no class instance that requires wakeup functionality + */ +bool app_usbd_class_rwu_enabled_check(void); + +/** + * @brief Find a specified descriptor + * + * @param[in] p_cinst Class instance + * @param[in] desc_type Descriptor type @ref app_usbd_descriptor_t + * @param[in] desc_index Descriptor index + * @param[out] p_desc Pointer to escriptor + * @param[out] p_desc_len Length of descriptor + * + * @return Standard error code @ref ret_code_t + * @retval NRF_SUCCESS descriptor successfully found + * @retval NRF_ERROR_NOT_FOUND descriptor not found + * */ +ret_code_t app_usbd_class_descriptor_find(app_usbd_class_inst_t const * const p_cinst, + uint8_t desc_type, + uint8_t desc_index, + uint8_t * p_desc, + size_t * p_desc_len); + +/** + * @brief Standard set interface request handle + * + * This function should be called when processing SET_INTERFACE request. + * + * @param[in] p_cinst Instance of a class + * @param[in] iface Interface number + * + * @return Standard error code + * + * @note Selected interface to reset has to be part of given class. + * In other case + * */ +ret_code_t app_usbd_interface_ep_reset(app_usbd_class_inst_t const * const p_cinst, + uint8_t iface); + + +/** + * @brief Enable selected endpoint + * + * Selected endpoint is enabled and cleared. + * + * @param ep Endpoint number + */ +void app_usbd_ep_enable(nrf_drv_usbd_ep_t ep); + +/** + * @brief Disable selected endpoint + * + * @param ep Endpoint number + */ +void app_usbd_ep_disable(nrf_drv_usbd_ep_t ep); + +/** + * @name Iterate through classes lists + * + * Functions that helps to iterate through internally chained classes. + * @{ + */ + /** + * @brief Get first class instance in the list + * + * Get first instance from the list of active class instances. + * That instance may be used then in @ref app_usbd_class_next_get function. + * + * @return First instance in the list or NULL if there are no instances available. + */ + app_usbd_class_inst_t const * app_usbd_class_first_get(void); + + /** + * @brief Get next instance in the list + * + * Get the next instance from the list of active instances. + * Used to iterate through all instances. + * + * @param[in] p_cinst The current instance from with next one is required. + * + * @return Next instance to the given one or NULL if there is no more instances in the list. + */ + static inline app_usbd_class_inst_t const * app_usbd_class_next_get( + app_usbd_class_inst_t const * const p_cinst) + { + ASSERT(NULL != p_cinst); + return app_usbd_class_data_access(p_cinst)->p_next; + } + + /** + * @brief Get first instance in SOF list + * + * Start iteration through the list of instances that requires SOF event processing. + * + * @return First instance in the list or NULL if the list is empty + * + * @sa app_usbd_class_first_get + */ + app_usbd_class_inst_t const * app_usbd_class_sof_first_get(void); + + /** + * @brief Get next instance in the SOF list + * + * Get the next instance from the list of instances requiring SOF event processing. + * Used to iterate through all SOF instances. + * + * @param p_cinst The current instance from with next one is required. + * + * @return Next instance to the given one or NULL if there is no more instances in the list. + */ + static inline app_usbd_class_inst_t const * app_usbd_class_sof_next_get( + app_usbd_class_inst_t const * const p_cinst) + { + ASSERT(NULL != p_cinst); + return app_usbd_class_data_access(p_cinst)->p_sof_next; + } +/** @} */ + +/** + * @brief Search for selected interface + * + * Function searches for the given interface number and returns the class that contains it. + * Optionally it can return interface index inside class instance. + * + * @param[in] iface Interface number + * @param[out] p_iface_idx Pointer to a variable that would hold interface index inside returned + * class instance. + * + * @return Pointer to the class structure that cointain given interface or NULL if not found. + */ +app_usbd_class_inst_t const * app_usbd_iface_find(uint8_t iface, uint8_t * p_iface_idx); + + +/** + * @name Communicate with interfaces, endpoints and instances inside usbd library + * + * @{ + */ + + /** + * @brief Call interface event handler + * + * Call event handler for selected interface. + * @param[in,out] p_class_inst Class instance that holds selected interface + * @param[in] iface_idx Index of the interface in class structure + * @param[in] p_event Event structure to be processed + * + * @return Operation status + */ + ret_code_t app_usbd_iface_call( + app_usbd_class_inst_t const * const p_class_inst, + uint8_t iface_idx, + app_usbd_complex_evt_t const * const p_event); + + /** + * @brief Call endpoint event handler + * + * Call event handler for the selected endpoint. + * @param[in] ep Endpoint number + * @param[in] p_event Event structure to send + * + * @return Operation status + */ + ret_code_t app_usbd_ep_call(nrf_drv_usbd_ep_t ep, app_usbd_complex_evt_t const * const p_event); + + /** + * @brief Auxiliary function that process event by every instance in the list + * + * This function ignores the result of called handler. + * + * @param p_event Event to pass to every instance + */ + void app_usbd_all_call(app_usbd_complex_evt_t const * const p_event); + + /** + * @brief Call interface event handlers and stop when served + * + * Call event handlers from instances as long as we get result different than @ref NRF_ERROR_NOT_SUPPORTED + * @param[in] p_event Event structure to send + * + * @return Operation status or @ref NRF_ERROR_NOT_SUPPORTED if none of instances in the list can support given event. + */ + ret_code_t app_usbd_all_until_served_call(app_usbd_complex_evt_t const * const p_event); +/** @} */ + +/** + * @brief Endpoint transfer + * + * @param ep Endpoint number + * @param p_transfer Description of the transfer to be performed. + * The direction of the transfer is determined by the + * endpoint number. + * + * @retval NRF_ERROR_INVALID_STATE The state of the USB device does not allow + * data transfer on the endpoint. + * @return Values returned by @ref nrf_drv_usbd_ep_transfer + * + * @sa app_usbd_ep_handled_transfer + */ +ret_code_t app_usbd_ep_transfer( + nrf_drv_usbd_ep_t ep, + nrf_drv_usbd_transfer_t const * const p_transfer); + +/** + * @brief Set up an endpoint handled transfer. + * + * Configures a transfer handled by the feedback function. + * + * @param ep Endpoint number. + * @param p_handler Function called when the next chunk of data is requested. + * + * @retval NRF_ERROR_INVALID_STATE The state of the USB device does not allow + * data transfer on the endpoint. + * @return Values returned by @ref nrf_drv_usbd_ep_handled_transfer. + */ +ret_code_t app_usbd_ep_handled_transfer( + nrf_drv_usbd_ep_t ep, + nrf_drv_usbd_handler_desc_t const * const p_handler); + + +/** + * @brief Select interface + * + * Select the given interface. + * This function calls class interface selection function or default + * interface selection function. + * + * After calling this function interface should be functional. + * + * @param[in,out] p_inst Instance of the class + * @param[in] iface_idx Index of the interface inside class structure + * @param[in] alternate Alternate setting that should be selected + * + * @return Standard Error code + */ +ret_code_t app_usbd_iface_select( + app_usbd_class_inst_t const * const p_inst, + uint8_t iface_idx, + uint8_t alternate); + + +/** + * @brief Deselect interface + * + * Disable the given interface. + * This function calls class interface deselection function or + * default interface selection function. + * + * After calling this function all the endpoints from the interface + * have to be disabled. + * + * @param[in,out] p_inst Instance of the class + * @param[in] iface_idx Index of the interface inside class structure + */ +void app_usbd_iface_deselect( + app_usbd_class_inst_t const * const p_inst, + uint8_t iface_idx); + +/** + * @brief Get selected interface + * + * Function retieves currently selected interface. + * If the class contains @ref app_usbd_class_methods_t::iface_selection_get it is called. + * It it does not contain this function this function would return default, 0 value. + * + * @param[in] p_inst Instance of the class + * @param[in] iface_idx Index of the interface inside class structure + * + * @return Selected alternate interface setting + */ +uint8_t app_usbd_iface_selection_get( + app_usbd_class_inst_t const * const p_inst, + uint8_t iface_idx); + +/** + * @brief Select alternate configuration 0 for all interfaces + * + * Auxiliary function that clears settings for all interfaces leaving them enabled. + */ +void app_usbd_all_iface_select_0(void); + +/** + * @brief Deselect all interfaces + * + * Auxiliary function to disable all interfaces. + */ +void app_usbd_all_iface_deselect(void); + +/** @} */ + +#ifdef __cplusplus +} +#endif + +#endif /* APP_USBD_H__ */ |