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305 lines
8.4 KiB
305 lines
8.4 KiB
/**
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* \file
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*
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* \brief SAM USB device HAL
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*
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* Copyright (C) 2015 Atmel Corporation. All rights reserved.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, 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,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of Atmel may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* 4. This software may only be redistributed and used in connection with an
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* Atmel microcontroller product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* \asf_license_stop
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*
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*/
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#ifndef _HAL_USB_DEVICE_H_INCLUDED
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#define _HAL_USB_DEVICE_H_INCLUDED
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#include <hpl_usb_device.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \addtogroup doc_driver_hal_usb_device
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*
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* @{
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*/
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/** USB device endpoint status structure. */
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struct usb_d_ep_status {
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/** Endpoint address, including direction. */
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uint8_t ep;
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/** Endpoint transfer status code that triggers the callback.
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* \ref usb_xfer_code. */
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uint8_t code;
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/** Endpoint error, if \c code is \ref USB_TRANS_ERROR. */
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uint8_t error;
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/** Transfer state, \ref usb_ep_state. */
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uint8_t state;
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/** Transfer count. */
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uint32_t count;
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/** Transfer size. */
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uint32_t size;
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};
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/** Prototype function for callback that is invoked on USB device SOF. */
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typedef void (*usb_d_sof_cb_t)(void);
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/** Prototype function for callback that is invoked on USB device events. */
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typedef void (*usb_d_event_cb_t)(const enum usb_event event, const uint32_t param);
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/** USB device callbacks. */
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struct usb_d_callbacks {
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/** Callback that is invoked on SOF. */
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usb_d_sof_cb_t sof;
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/** Callback that is invoked on USB RESET/WAKEUP/RESUME/SUSPEND. */
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usb_d_event_cb_t event;
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};
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/** Callback that is invoked when setup packet is received.
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* Return \c true if request has been handled, or control endpoint will
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* stall IN/OUT transactions.
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*/
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typedef bool (*usb_d_ep_cb_setup_t)(const uint8_t ep, const uint8_t *req);
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/** Callback that is invoked when buffer is done without error, but last packet
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* is full size packet without ZLP.
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* Return \c true if more data has been requested.
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*/
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typedef bool (*usb_d_ep_cb_more_t)(const uint8_t ep, const uint32_t count);
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/** Callback that is invoked when all data is finished, including background
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* transfer, or error happens.
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* In control transfer data stage, return value is checked,
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* return \c false if no error happens.
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*/
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typedef bool (*usb_d_ep_cb_xfer_t)(const uint8_t ep, const enum usb_xfer_code code, void *param);
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/**
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* \brief Initialize the USB device driver
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* \return Operation status.
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* \retval 0 Success.
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* \retval <0 Error code.
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*/
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int32_t usb_d_init(void);
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/**
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* \brief Deinitialize the USB device driver
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*/
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void usb_d_deinit(void);
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/**
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* \brief Register the USB device callback
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* \param[in] type The callback type to register.
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* \param[in] func The callback function, NULL to disable callback.
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*/
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void usb_d_register_callback(const enum usb_d_cb_type type, const FUNC_PTR func);
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/**
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* \brief Enable the USB device driver
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* \return Operation status.
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* \retval 0 Success.
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* \retval <0 Error code.
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*/
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int32_t usb_d_enable(void);
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/**
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* \brief Disable the USB device driver
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*/
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void usb_d_disable(void);
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/**
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* \brief Attach the USB device
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*/
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void usb_d_attach(void);
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/**
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* \brief Detach the USB device
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*/
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void usb_d_detach(void);
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/**
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* \brief Retrieve current USB working speed.
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* \return USB Speed. See \ref usb_speed.
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*/
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enum usb_speed usb_d_get_speed(void);
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/**
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* \brief Retrieve current USB frame number.
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* \return Frame number.
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*/
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uint16_t usb_d_get_frame_num(void);
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/**
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* \brief Retrieve current USB micro frame number.
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* \return Micro frame number inside a frame (0~7).
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* 0 if not available (not HS).
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*/
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uint8_t usb_d_get_uframe_num(void);
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/**
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* \brief Set the USB address that is used.
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* \param[in] addr The address to set.
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*/
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void usb_d_set_address(const uint8_t addr);
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/**
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* \brief Send remote wakeup to host
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* \return Operation status.
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*/
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void usb_d_send_remotewakeup(void);
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/**
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* \brief Initialize the endpoint 0.
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*
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* Note that endpoint 0 must be initialized as control endpoint.
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*
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* \param[in] max_pkt_size Max. packet size of EP0.
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* \return Operation status.
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* \retval 0 Success.
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* \retval <0 Error code.
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*/
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int32_t usb_d_ep0_init(const uint8_t max_pkt_size);
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/**
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* \brief Initialize the endpoint.
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*
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* \param[in] ep The endpoint address.
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* \param[in] attr The endpoint attributes.
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* \param[in] max_pkt_size Max. packet size of EP0.
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* \return Operation status.
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* \retval 0 Success.
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* \retval <0 Error code.
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*/
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int32_t usb_d_ep_init(const uint8_t ep, const uint8_t attr, const uint16_t max_pkt_size);
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/**
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* \brief Disable and deinitialize the endpoint.
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* \param[in] ep The endpoint address to deinitialize.
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*/
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void usb_d_ep_deinit(const uint8_t ep);
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/**
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* \brief Register the USB device endpoint callback on initialized endpoint.
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*
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* \param[in] ep The endpoint address.
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* \param[in] type The callback type to register.
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* \param[in] func The callback function, NULL to disable callback.
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*/
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void usb_d_ep_register_callback(const uint8_t ep, const enum usb_d_ep_cb_type type, const FUNC_PTR func);
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/**
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* \brief Enabled the initialized endpoint.
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*
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* Setup request will be monitored after enabling a control endpoint.
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*
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* \param[in] ep The endpoint address.
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* \return Operation status.
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* \retval 0 Success.
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* \retval <0 Error code.
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*/
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int32_t usb_d_ep_enable(const uint8_t ep);
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/**
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* \brief Disable the initialized endpoint.
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* \param[in] ep The endpoint address.
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*/
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void usb_d_ep_disable(const uint8_t ep);
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/**
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* \brief Get request data pointer to access received setup request packet
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* \param[in] ep The endpoint address.
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* \return Pointer to the request data.
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* \retval NULL The endpoint is not a control endpoint.
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*/
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uint8_t *usb_d_ep_get_req(const uint8_t ep);
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/**
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* \brief Endpoint transfer.
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*
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* For control endpoints, start the transfer according to the direction in the bmRequest
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* type, and finish with STATUS stage.
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* For non-control endpoints, the transfer will be unique direction. Defined by
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* bit 8 of the endpoint address.
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*
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* \param[in] xfer Pointer to the transfer description.
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* \return Operation status.
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* \retval 0 Success.
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* \retval <0 Error code.
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*/
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int32_t usb_d_ep_transfer(const struct usb_d_transfer *xfer);
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/**
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* \brief Abort an on-going transfer on a specific endpoint.
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*
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* \param[in] ep The endpoint address.
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*/
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void usb_d_ep_abort(const uint8_t ep);
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/**
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* \brief Retrieve the endpoint status.
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*
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* \param[in] ep The endpoint address.
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* \param[out] stat Pointer to the buffer to fill the status description.
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*
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* \return Endpoint status.
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* \retval 1 Busy.
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* \retval 0 Idle.
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* \retval <0 Error code.
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*/
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int32_t usb_d_ep_get_status(const uint8_t ep, struct usb_d_ep_status *stat);
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/**
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* \brief Endpoint halt control.
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*
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* \param[in] ep The endpoint address.
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* \param[in] ctrl Control code (SET/CLEAR/GET).
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*
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* \return Operation status or HALT state (if \c ctrl is \ref USB_EP_HALT_GET).
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*/
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int32_t usb_d_ep_halt(const uint8_t ep, const enum usb_ep_halt_ctrl ctrl);
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/** \brief Retrieve the current driver version
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*
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* \return Current driver version.
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*/
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uint32_t usb_d_get_version(void);
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/**@}*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* _HAL_USB_DEVICE_H_INCLUDED */
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