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/*
* The MIT License (MIT)
*
* Copyright (c) 2020 Jerzy Kasenberg
*
* 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 _TUSB_BTH_DEVICE_H_
#define _TUSB_BTH_DEVICE_H_
#include <common/tusb_common.h>
#include <device/usbd.h>
//--------------------------------------------------------------------+
// Class Driver Configuration
//--------------------------------------------------------------------+
#ifndef CFG_TUD_BTH_EVENT_EPSIZE
#define CFG_TUD_BTH_EVENT_EPSIZE 16
#endif
#ifndef CFG_TUD_BTH_DATA_EPSIZE
#define CFG_TUD_BTH_DATA_EPSIZE 64
#endif
typedef struct TU_ATTR_PACKED
{
uint16_t op_code;
uint8_t param_length;
uint8_t param[255];
} bt_hci_cmd_t;
#ifdef __cplusplus
extern "C" {
#endif
//--------------------------------------------------------------------+
// Application Callback API (weak is optional)
//--------------------------------------------------------------------+
// Invoked when HCI command was received over USB from Bluetooth host.
// Detailed format is described in Bluetooth core specification Vol 2,
// Part E, 5.4.1.
// Length of the command is from 3 bytes (2 bytes for OpCode,
// 1 byte for parameter total length) to 258.
TU_ATTR_WEAK void tud_bt_hci_cmd_cb(void *hci_cmd, size_t cmd_len);
// Invoked when ACL data was received over USB from Bluetooth host.
// Detailed format is described in Bluetooth core specification Vol 2,
// Part E, 5.4.2.
// Length is from 4 bytes, (12 bits for Handle, 4 bits for flags
// and 16 bits for data total length) to endpoint size.
TU_ATTR_WEAK void tud_bt_acl_data_received_cb(void *acl_data, uint16_t data_len);
// Called when event sent with tud_bt_event_send() was delivered to BT stack.
// Controller can release/reuse buffer with Event packet at this point.
TU_ATTR_WEAK void tud_bt_event_sent_cb(uint16_t sent_bytes);
// Called when ACL data that was sent with tud_bt_acl_data_send()
// was delivered to BT stack.
// Controller can release/reuse buffer with ACL packet at this point.
TU_ATTR_WEAK void tud_bt_acl_data_sent_cb(uint16_t sent_bytes);
// Bluetooth controller calls this function when it wants to send even packet
// as described in Bluetooth core specification Vol 2, Part E, 5.4.4.
// Event has at least 2 bytes, first is Event code second contains parameter
// total length. Controller can release/reuse event memory after
// tud_bt_event_sent_cb() is called.
bool tud_bt_event_send(void *event, uint16_t event_len);
// Bluetooth controller calls this to send ACL data packet
// as described in Bluetooth core specification Vol 2, Part E, 5.4.2
// Minimum length is 4 bytes, (12 bits for Handle, 4 bits for flags
// and 16 bits for data total length). Upper limit is not limited
// to endpoint size since buffer is allocate by controller
// and must not be reused till tud_bt_acl_data_sent_cb() is called.
bool tud_bt_acl_data_send(void *acl_data, uint16_t data_len);
//--------------------------------------------------------------------+
// Internal Class Driver API
//--------------------------------------------------------------------+
void btd_init (void);
void btd_reset (uint8_t rhport);
uint16_t btd_open (uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len);
bool btd_control_xfer_cb (uint8_t rhport, uint8_t stage, tusb_control_request_t const *request);
bool btd_xfer_cb (uint8_t rhport, uint8_t edpt_addr, xfer_result_t result, uint32_t xferred_bytes);
#ifdef __cplusplus
}
#endif
#endif /* _TUSB_BTH_DEVICE_H_ */
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