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/*
* The MIT License (MIT)
*
* Copyright (c) 2019 Ha Thach (tinyusb.org)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* This file is part of the TinyUSB stack.
*/
#ifndef USBD_PVT_H_
#define USBD_PVT_H_
#include "osal/osal.h"
#include "common/tusb_fifo.h"
#ifdef __cplusplus
extern "C" {
#endif
//--------------------------------------------------------------------+
// Class Driver API
//--------------------------------------------------------------------+
typedef struct
{
#if CFG_TUSB_DEBUG >= 2
char const* name;
#endif
void (* init ) (void);
void (* reset ) (uint8_t rhport);
uint16_t (* open ) (uint8_t rhport, tusb_desc_interface_t const * desc_intf, uint16_t max_len);
bool (* control_xfer_cb ) (uint8_t rhport, uint8_t stage, tusb_control_request_t const * request);
bool (* xfer_cb ) (uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
void (* sof ) (uint8_t rhport); /* optional */
} usbd_class_driver_t;
// Invoked when initializing device stack to get additional class drivers.
// Can optionally implemented by application to extend/overwrite class driver support.
// Note: The drivers array must be accessible at all time when stack is active
usbd_class_driver_t const* usbd_app_driver_get_cb(uint8_t* driver_count) TU_ATTR_WEAK;
typedef bool (*usbd_control_xfer_cb_t)(uint8_t rhport, uint8_t stage, tusb_control_request_t const * request);
//--------------------------------------------------------------------+
// USBD Endpoint API
//--------------------------------------------------------------------+
// Open an endpoint
bool usbd_edpt_open(uint8_t rhport, tusb_desc_endpoint_t const * desc_ep);
// Close an endpoint
void usbd_edpt_close(uint8_t rhport, uint8_t ep_addr);
// Submit a usb transfer
bool usbd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes);
// Submit a usb ISO transfer by use of a FIFO (ring buffer) - all bytes in FIFO get transmitted
bool usbd_edpt_xfer_fifo(uint8_t rhport, uint8_t ep_addr, tu_fifo_t * ff, uint16_t total_bytes);
// Claim an endpoint before submitting a transfer.
// If caller does not make any transfer, it must release endpoint for others.
bool usbd_edpt_claim(uint8_t rhport, uint8_t ep_addr);
// Release an endpoint without submitting a transfer
bool usbd_edpt_release(uint8_t rhport, uint8_t ep_addr);
// Check if endpoint transferring is complete
bool usbd_edpt_busy(uint8_t rhport, uint8_t ep_addr);
// Stall endpoint
void usbd_edpt_stall(uint8_t rhport, uint8_t ep_addr);
// Clear stalled endpoint
void usbd_edpt_clear_stall(uint8_t rhport, uint8_t ep_addr);
// Check if endpoint is stalled
bool usbd_edpt_stalled(uint8_t rhport, uint8_t ep_addr);
TU_ATTR_ALWAYS_INLINE static inline
bool usbd_edpt_ready(uint8_t rhport, uint8_t ep_addr)
{
return !usbd_edpt_busy(rhport, ep_addr) && !usbd_edpt_stalled(rhport, ep_addr);
}
/*------------------------------------------------------------------*/
/* Helper
*------------------------------------------------------------------*/
bool usbd_open_edpt_pair(uint8_t rhport, uint8_t const* p_desc, uint8_t ep_count, uint8_t xfer_type, uint8_t* ep_out, uint8_t* ep_in);
void usbd_defer_func( osal_task_func_t func, void* param, bool in_isr );
#ifdef __cplusplus
}
#endif
#endif /* USBD_PVT_H_ */
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