/*
 * SPDX-FileCopyrightText: Copyright (c) 2021, Ha Thach (tinyusb.org)
 * SPDX-License-Identifier: MIT
 *
 * This file is part of the TinyUSB stack.
 */

#ifndef TUSB_USBH_PVT_H_
#define TUSB_USBH_PVT_H_

#include "osal/osal.h"
#include "common/tusb_fifo.h"
#include "common/tusb_private.h"

#ifdef __cplusplus
 extern "C" {
#endif

#define TU_LOG_USBH(...)      TU_LOG(CFG_TUH_LOG_LEVEL, __VA_ARGS__)
#define TU_LOG_MEM_USBH(...)  TU_LOG_MEM(CFG_TUH_LOG_LEVEL, __VA_ARGS__)
#define TU_LOG_BUF_USBH(...)  TU_LOG_BUF(CFG_TUH_LOG_LEVEL, __VA_ARGS__)
#define TU_LOG_INT_USBH(...)  TU_LOG_INT(CFG_TUH_LOG_LEVEL, __VA_ARGS__)
#define TU_LOG_HEX_USBH(...)  TU_LOG_HEX(CFG_TUH_LOG_LEVEL, __VA_ARGS__)

//--------------------------------------------------------------------+
// Class Driver API
//--------------------------------------------------------------------+
typedef struct {
   const char *name;
   bool (*const init)(void);
   bool (*const deinit)(void);
   uint16_t (*const open)(uint8_t rhport, uint8_t dev_addr, const tusb_desc_interface_t *itf_desc, uint16_t max_len);
   bool (*const set_config)(uint8_t dev_addr, uint8_t itf_num);
   bool (*const xfer_cb)(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
   void (*const close)(uint8_t dev_addr);
 } usbh_class_driver_t;

// Invoked when initializing host stack to get additional class drivers.
// Can be implemented by application to extend/overwrite class driver support.
// Note: The drivers array must be accessible at all time when stack is active
usbh_class_driver_t const* usbh_app_driver_get_cb(uint8_t* driver_count);

// Call by class driver to tell USBH that it has complete the enumeration
void usbh_driver_set_config_complete(uint8_t dev_addr, uint8_t itf_num);

uint8_t usbh_get_rhport(uint8_t daddr);

uint8_t* usbh_get_enum_buf(void);

void usbh_int_set(bool enabled);

// Invoke this function later in tuh_task() by putting it into task queue
void usbh_defer_func(osal_task_func_t func, void *param, bool in_isr);

// Schedules a function to be called after certain time asynchronously
bool usbh_defer_func_ms_async(uint32_t ms, tusb_defer_func_t func, uintptr_t param);

void usbh_spin_lock(bool in_isr);
void usbh_spin_unlock(bool in_isr);

//--------------------------------------------------------------------+
// USBH Endpoint API
//--------------------------------------------------------------------+

// Submit a usb transfer with callback support, require CFG_TUH_API_EDPT_XFER
bool usbh_edpt_xfer_with_callback(uint8_t dev_addr, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes,
                                  tuh_xfer_cb_t complete_cb, uintptr_t user_data);

TU_ATTR_ALWAYS_INLINE static inline
bool usbh_edpt_xfer(uint8_t dev_addr, uint8_t ep_addr, uint8_t * buffer, uint16_t total_bytes) {
  return usbh_edpt_xfer_with_callback(dev_addr, ep_addr, buffer, total_bytes, NULL, 0);
}

// Claim an endpoint before submitting a transfer.
// If caller does not make any transfer, it must release endpoint for others.
bool usbh_edpt_claim(uint8_t dev_addr, uint8_t ep_addr);

// Release claimed endpoint without submitting a transfer
bool usbh_edpt_release(uint8_t dev_addr, uint8_t ep_addr);

// Check if endpoint transferring is complete
bool usbh_edpt_busy(uint8_t dev_addr, uint8_t ep_addr);

#ifdef __cplusplus
 }
#endif

#endif