/*
 * 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 _TUSB_HID_DEVICE_H_
#define _TUSB_HID_DEVICE_H_

#include "hid.h"

#ifdef __cplusplus
 extern "C" {
#endif

//--------------------------------------------------------------------+
// Class Driver Default Configure & Validation
//--------------------------------------------------------------------+

#if !defined(CFG_TUD_HID_EP_BUFSIZE) & defined(CFG_TUD_HID_BUFSIZE)
  // TODO warn user to use new name later on
  // #warning CFG_TUD_HID_BUFSIZE is renamed to CFG_TUD_HID_EP_BUFSIZE, please update to use the new name
  #define CFG_TUD_HID_EP_BUFSIZE  CFG_TUD_HID_BUFSIZE
#endif

#ifndef CFG_TUD_HID_EP_BUFSIZE
  #define CFG_TUD_HID_EP_BUFSIZE     64
#endif

//--------------------------------------------------------------------+
// Application API (Multiple Instances)
// CFG_TUD_HID > 1
//--------------------------------------------------------------------+

// Check if the interface is ready to use
bool tud_hid_n_ready(uint8_t instance);

// Get interface supported protocol (bInterfaceProtocol) check out hid_interface_protocol_enum_t for possible values
uint8_t tud_hid_n_interface_protocol(uint8_t instance);

// Get current active protocol: HID_PROTOCOL_BOOT (0) or HID_PROTOCOL_REPORT (1)
uint8_t tud_hid_n_get_protocol(uint8_t instance);

// Send report to host
bool tud_hid_n_report(uint8_t instance, uint8_t report_id, void const* report, uint16_t len);

// KEYBOARD: convenient helper to send keyboard report if application
// use template layout report as defined by hid_keyboard_report_t
bool tud_hid_n_keyboard_report(uint8_t instance, uint8_t report_id, uint8_t modifier, uint8_t keycode[6]);

// MOUSE: convenient helper to send mouse report if application
// use template layout report as defined by hid_mouse_report_t
bool tud_hid_n_mouse_report(uint8_t instance, uint8_t report_id, uint8_t buttons, int8_t x, int8_t y, int8_t vertical, int8_t horizontal);

// Gamepad: convenient helper to send gamepad report if application
// use template layout report TUD_HID_REPORT_DESC_GAMEPAD
bool tud_hid_n_gamepad_report(uint8_t instance, uint8_t report_id, int8_t x, int8_t y, int8_t z, int8_t rz, int8_t rx, int8_t ry, uint8_t hat, uint32_t buttons);

//--------------------------------------------------------------------+
// Application API (Single Port)
//--------------------------------------------------------------------+
static inline bool    tud_hid_ready(void);
static inline uint8_t tud_hid_interface_protocol(void);
static inline uint8_t tud_hid_get_protocol(void);
static inline bool    tud_hid_report(uint8_t report_id, void const* report, uint16_t len);
static inline bool    tud_hid_keyboard_report(uint8_t report_id, uint8_t modifier, uint8_t keycode[6]);
static inline bool    tud_hid_mouse_report(uint8_t report_id, uint8_t buttons, int8_t x, int8_t y, int8_t vertical, int8_t horizontal);
static inline bool    tud_hid_gamepad_report(uint8_t report_id, int8_t x, int8_t y, int8_t z, int8_t rz, int8_t rx, int8_t ry, uint8_t hat, uint32_t buttons);

//--------------------------------------------------------------------+
// Callbacks (Weak is optional)
//--------------------------------------------------------------------+

// Invoked when received GET HID REPORT DESCRIPTOR request
// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
uint8_t const * tud_hid_descriptor_report_cb(uint8_t instance);

// Invoked when received GET_REPORT control request
// Application must fill buffer report's content and return its length.
// Return zero will cause the stack to STALL request
uint16_t tud_hid_get_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen);

// Invoked when received SET_REPORT control request or
// received data on OUT endpoint ( Report ID = 0, Type = 0 )
void tud_hid_set_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize);

// Invoked when received SET_PROTOCOL request
// protocol is either HID_PROTOCOL_BOOT (0) or HID_PROTOCOL_REPORT (1)
TU_ATTR_WEAK void tud_hid_set_protocol_cb(uint8_t instance, uint8_t protocol);

// Invoked when received SET_IDLE request. return false will stall the request
// - Idle Rate = 0 : only send report if there is changes, i.e skip duplication
// - Idle Rate > 0 : skip duplication, but send at least 1 report every idle rate (in unit of 4 ms).
TU_ATTR_WEAK bool tud_hid_set_idle_cb(uint8_t instance, uint8_t idle_rate);

// Invoked when sent REPORT successfully to host
// Application can use this to send the next report
// Note: For composite reports, report[0] is report ID
TU_ATTR_WEAK void tud_hid_report_complete_cb(uint8_t instance, uint8_t const* report, /*uint16_t*/ uint8_t len );


//--------------------------------------------------------------------+
// Inline Functions
//--------------------------------------------------------------------+
static inline bool tud_hid_ready(void)
{
  return tud_hid_n_ready(0);
}

static inline uint8_t tud_hid_interface_protocol(void)
{
  return tud_hid_n_interface_protocol(0);
}

static inline uint8_t tud_hid_get_protocol(void)
{
  return tud_hid_n_get_protocol(0);
}

static inline bool tud_hid_report(uint8_t report_id, void const* report, uint16_t len)
{
  return tud_hid_n_report(0, report_id, report, len);
}

static inline bool tud_hid_keyboard_report(uint8_t report_id, uint8_t modifier, uint8_t keycode[6])
{
  return tud_hid_n_keyboard_report(0, report_id, modifier, keycode);
}

static inline bool tud_hid_mouse_report(uint8_t report_id, uint8_t buttons, int8_t x, int8_t y, int8_t vertical, int8_t horizontal)
{
  return tud_hid_n_mouse_report(0, report_id, buttons, x, y, vertical, horizontal);
}

static inline bool  tud_hid_gamepad_report(uint8_t report_id, int8_t x, int8_t y, int8_t z, int8_t rz, int8_t rx, int8_t ry, uint8_t hat, uint32_t buttons)
{
  return tud_hid_n_gamepad_report(0, report_id, x, y, z, rz, rx, ry, hat, buttons);
}

/* --------------------------------------------------------------------+
 * HID Report Descriptor Template
 *
 * Convenient for declaring popular HID device (keyboard, mouse, consumer,
 * gamepad etc...). Templates take "HID_REPORT_ID(n)" as input, leave
 * empty if multiple reports is not used
 *
 * - Only 1 report: no parameter
 *      uint8_t const report_desc[] = { TUD_HID_REPORT_DESC_KEYBOARD() };
 *
 * - Multiple Reports: "HID_REPORT_ID(ID)" must be passed to template
 *      uint8_t const report_desc[] =
 *      {
 *          TUD_HID_REPORT_DESC_KEYBOARD( HID_REPORT_ID(1) ) ,
 *          TUD_HID_REPORT_DESC_MOUSE   ( HID_REPORT_ID(2) )
 *      };
 *--------------------------------------------------------------------*/

// Keyboard Report Descriptor Template
#define TUD_HID_REPORT_DESC_KEYBOARD(...) \
  HID_USAGE_PAGE ( HID_USAGE_PAGE_DESKTOP     )                    ,\
  HID_USAGE      ( HID_USAGE_DESKTOP_KEYBOARD )                    ,\
  HID_COLLECTION ( HID_COLLECTION_APPLICATION )                    ,\
    /* Report ID if any */\
    __VA_ARGS__ \
    /* 8 bits Modifier Keys (Shfit, Control, Alt) */ \
    HID_USAGE_PAGE ( HID_USAGE_PAGE_KEYBOARD )                     ,\
      HID_USAGE_MIN    ( 224                                    )  ,\
      HID_USAGE_MAX    ( 231                                    )  ,\
      HID_LOGICAL_MIN  ( 0                                      )  ,\
      HID_LOGICAL_MAX  ( 1                                      )  ,\
      HID_REPORT_COUNT ( 8                                      )  ,\
      HID_REPORT_SIZE  ( 1                                      )  ,\
      HID_INPUT        ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE )  ,\
      /* 8 bit reserved */ \
      HID_REPORT_COUNT ( 1                                      )  ,\
      HID_REPORT_SIZE  ( 8                                      )  ,\
      HID_INPUT        ( HID_CONSTANT                           )  ,\
    /* Output 5-bit LED Indicator Kana | Compose | ScrollLock | CapsLock | NumLock */ \
    HID_USAGE_PAGE  ( HID_USAGE_PAGE_LED                   )       ,\
      HID_USAGE_MIN    ( 1                                       ) ,\
      HID_USAGE_MAX    ( 5                                       ) ,\
      HID_REPORT_COUNT ( 5                                       ) ,\
      HID_REPORT_SIZE  ( 1                                       ) ,\
      HID_OUTPUT       ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE  ) ,\
      /* led padding */ \
      HID_REPORT_COUNT ( 1                                       ) ,\
      HID_REPORT_SIZE  ( 3                                       ) ,\
      HID_OUTPUT       ( HID_CONSTANT                            ) ,\
    /* 6-byte Keycodes */ \
    HID_USAGE_PAGE ( HID_USAGE_PAGE_KEYBOARD )                     ,\
      HID_USAGE_MIN    ( 0                                   )     ,\
      HID_USAGE_MAX_N  ( 255, 2                              )     ,\
      HID_LOGICAL_MIN  ( 0                                   )     ,\
      HID_LOGICAL_MAX_N( 255, 2                              )     ,\
      HID_REPORT_COUNT ( 6                                   )     ,\
      HID_REPORT_SIZE  ( 8                                   )     ,\
      HID_INPUT        ( HID_DATA | HID_ARRAY | HID_ABSOLUTE )     ,\
  HID_COLLECTION_END \

// Mouse Report Descriptor Template
#define TUD_HID_REPORT_DESC_MOUSE(...) \
  HID_USAGE_PAGE ( HID_USAGE_PAGE_DESKTOP      )                   ,\
  HID_USAGE      ( HID_USAGE_DESKTOP_MOUSE     )                   ,\
  HID_COLLECTION ( HID_COLLECTION_APPLICATION  )                   ,\
    /* Report ID if any */\
    __VA_ARGS__ \
    HID_USAGE      ( HID_USAGE_DESKTOP_POINTER )                   ,\
    HID_COLLECTION ( HID_COLLECTION_PHYSICAL   )                   ,\
      HID_USAGE_PAGE  ( HID_USAGE_PAGE_BUTTON  )                   ,\
        HID_USAGE_MIN   ( 1                                      ) ,\
        HID_USAGE_MAX   ( 5                                      ) ,\
        HID_LOGICAL_MIN ( 0                                      ) ,\
        HID_LOGICAL_MAX ( 1                                      ) ,\
        /* Left, Right, Middle, Backward, Forward buttons */ \
        HID_REPORT_COUNT( 5                                      ) ,\
        HID_REPORT_SIZE ( 1                                      ) ,\
        HID_INPUT       ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ) ,\
        /* 3 bit padding */ \
        HID_REPORT_COUNT( 1                                      ) ,\
        HID_REPORT_SIZE ( 3                                      ) ,\
        HID_INPUT       ( HID_CONSTANT                           ) ,\
      HID_USAGE_PAGE  ( HID_USAGE_PAGE_DESKTOP )                   ,\
        /* X, Y position [-127, 127] */ \
        HID_USAGE       ( HID_USAGE_DESKTOP_X                    ) ,\
        HID_USAGE       ( HID_USAGE_DESKTOP_Y                    ) ,\
        HID_LOGICAL_MIN ( 0x81                                   ) ,\
        HID_LOGICAL_MAX ( 0x7f                                   ) ,\
        HID_REPORT_COUNT( 2                                      ) ,\
        HID_REPORT_SIZE ( 8                                      ) ,\
        HID_INPUT       ( HID_DATA | HID_VARIABLE | HID_RELATIVE ) ,\
        /* Verital wheel scroll [-127, 127] */ \
        HID_USAGE       ( HID_USAGE_DESKTOP_WHEEL                )  ,\
        HID_LOGICAL_MIN ( 0x81                                   )  ,\
        HID_LOGICAL_MAX ( 0x7f                                   )  ,\
        HID_REPORT_COUNT( 1                                      )  ,\
        HID_REPORT_SIZE ( 8                                      )  ,\
        HID_INPUT       ( HID_DATA | HID_VARIABLE | HID_RELATIVE )  ,\
      HID_USAGE_PAGE  ( HID_USAGE_PAGE_CONSUMER ), \
       /* Horizontal wheel scroll [-127, 127] */ \
        HID_USAGE_N     ( HID_USAGE_CONSUMER_AC_PAN, 2           ), \
        HID_LOGICAL_MIN ( 0x81                                   ), \
        HID_LOGICAL_MAX ( 0x7f                                   ), \
        HID_REPORT_COUNT( 1                                      ), \
        HID_REPORT_SIZE ( 8                                      ), \
        HID_INPUT       ( HID_DATA | HID_VARIABLE | HID_RELATIVE ), \
    HID_COLLECTION_END                                            , \
  HID_COLLECTION_END \

// Consumer Control Report Descriptor Template
#define TUD_HID_REPORT_DESC_CONSUMER(...) \
  HID_USAGE_PAGE ( HID_USAGE_PAGE_CONSUMER    )              ,\
  HID_USAGE      ( HID_USAGE_CONSUMER_CONTROL )              ,\
  HID_COLLECTION ( HID_COLLECTION_APPLICATION )              ,\
    /* Report ID if any */\
    __VA_ARGS__ \
    HID_LOGICAL_MIN  ( 0x00                                ) ,\
    HID_LOGICAL_MAX_N( 0x03FF, 2                           ) ,\
    HID_USAGE_MIN    ( 0x00                                ) ,\
    HID_USAGE_MAX_N  ( 0x03FF, 2                           ) ,\
    HID_REPORT_COUNT ( 1                                   ) ,\
    HID_REPORT_SIZE  ( 16                                  ) ,\
    HID_INPUT        ( HID_DATA | HID_ARRAY | HID_ABSOLUTE ) ,\
  HID_COLLECTION_END \

/* System Control Report Descriptor Template
 * 0x00 - do nothing
 * 0x01 - Power Off
 * 0x02 - Standby
 * 0x03 - Wake Host
 */
#define TUD_HID_REPORT_DESC_SYSTEM_CONTROL(...) \
  HID_USAGE_PAGE ( HID_USAGE_PAGE_DESKTOP           )        ,\
  HID_USAGE      ( HID_USAGE_DESKTOP_SYSTEM_CONTROL )        ,\
  HID_COLLECTION ( HID_COLLECTION_APPLICATION       )        ,\
    /* Report ID if any */\
    __VA_ARGS__ \
    /* 2 bit system power control */ \
    HID_LOGICAL_MIN  ( 1                                   ) ,\
    HID_LOGICAL_MAX  ( 3                                   ) ,\
    HID_REPORT_COUNT ( 1                                   ) ,\
    HID_REPORT_SIZE  ( 2                                   ) ,\
    HID_USAGE        ( HID_USAGE_DESKTOP_SYSTEM_POWER_DOWN ) ,\
    HID_USAGE        ( HID_USAGE_DESKTOP_SYSTEM_SLEEP      ) ,\
    HID_USAGE        ( HID_USAGE_DESKTOP_SYSTEM_WAKE_UP    ) ,\
    HID_INPUT        ( HID_DATA | HID_ARRAY | HID_ABSOLUTE ) ,\
    /* 6 bit padding */ \
    HID_REPORT_COUNT ( 1                                   ) ,\
    HID_REPORT_SIZE  ( 6                                   ) ,\
    HID_INPUT        ( HID_CONSTANT                        ) ,\
  HID_COLLECTION_END \

// Gamepad Report Descriptor Template
// with 32 buttons, 2 joysticks and 1 hat/dpad with following layout
// | X | Y | Z | Rz | Rx | Ry (1 byte each) | hat/DPAD (1 byte) | Button Map (4 bytes) |
#define TUD_HID_REPORT_DESC_GAMEPAD(...) \
  HID_USAGE_PAGE ( HID_USAGE_PAGE_DESKTOP     )                 ,\
  HID_USAGE      ( HID_USAGE_DESKTOP_GAMEPAD  )                 ,\
  HID_COLLECTION ( HID_COLLECTION_APPLICATION )                 ,\
    /* Report ID if any */\
    __VA_ARGS__ \
    /* 8 bit X, Y, Z, Rz, Rx, Ry (min -127, max 127 ) */ \
    HID_USAGE_PAGE     ( HID_USAGE_PAGE_DESKTOP                 ) ,\
    HID_USAGE          ( HID_USAGE_DESKTOP_X                    ) ,\
    HID_USAGE          ( HID_USAGE_DESKTOP_Y                    ) ,\
    HID_USAGE          ( HID_USAGE_DESKTOP_Z                    ) ,\
    HID_USAGE          ( HID_USAGE_DESKTOP_RZ                   ) ,\
    HID_USAGE          ( HID_USAGE_DESKTOP_RX                   ) ,\
    HID_USAGE          ( HID_USAGE_DESKTOP_RY                   ) ,\
    HID_LOGICAL_MIN    ( 0x81                                   ) ,\
    HID_LOGICAL_MAX    ( 0x7f                                   ) ,\
    HID_REPORT_COUNT   ( 6                                      ) ,\
    HID_REPORT_SIZE    ( 8                                      ) ,\
    HID_INPUT          ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ) ,\
    /* 8 bit DPad/Hat Button Map  */ \
    HID_USAGE_PAGE     ( HID_USAGE_PAGE_DESKTOP                 ) ,\
    HID_USAGE          ( HID_USAGE_DESKTOP_HAT_SWITCH           ) ,\
    HID_LOGICAL_MIN    ( 1                                      ) ,\
    HID_LOGICAL_MAX    ( 8                                      ) ,\
    HID_PHYSICAL_MIN   ( 0                                      ) ,\
    HID_PHYSICAL_MAX_N ( 315, 2                                 ) ,\
    HID_REPORT_COUNT   ( 1                                      ) ,\
    HID_REPORT_SIZE    ( 8                                      ) ,\
    HID_INPUT          ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ) ,\
    /* 32 bit Button Map */ \
    HID_USAGE_PAGE     ( HID_USAGE_PAGE_BUTTON                  ) ,\
    HID_USAGE_MIN      ( 1                                      ) ,\
    HID_USAGE_MAX      ( 32                                     ) ,\
    HID_LOGICAL_MIN    ( 0                                      ) ,\
    HID_LOGICAL_MAX    ( 1                                      ) ,\
    HID_REPORT_COUNT   ( 32                                     ) ,\
    HID_REPORT_SIZE    ( 1                                      ) ,\
    HID_INPUT          ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ) ,\
  HID_COLLECTION_END \

// HID Generic Input & Output
// - 1st parameter is report size (mandatory)
// - 2nd parameter is report id HID_REPORT_ID(n) (optional)
#define TUD_HID_REPORT_DESC_GENERIC_INOUT(report_size, ...) \
    HID_USAGE_PAGE_N ( HID_USAGE_PAGE_VENDOR, 2   ),\
    HID_USAGE        ( 0x01                       ),\
    HID_COLLECTION   ( HID_COLLECTION_APPLICATION ),\
      /* Report ID if any */\
      __VA_ARGS__ \
      /* Input */ \
      HID_USAGE       ( 0x02                                   ),\
      HID_LOGICAL_MIN ( 0x00                                   ),\
      HID_LOGICAL_MAX_N ( 0xff, 2                              ),\
      HID_REPORT_SIZE ( 8                                      ),\
      HID_REPORT_COUNT( report_size                            ),\
      HID_INPUT       ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE ),\
      /* Output */ \
      HID_USAGE       ( 0x03                                    ),\
      HID_LOGICAL_MIN ( 0x00                                    ),\
      HID_LOGICAL_MAX_N ( 0xff, 2                               ),\
      HID_REPORT_SIZE ( 8                                       ),\
      HID_REPORT_COUNT( report_size                             ),\
      HID_OUTPUT      ( HID_DATA | HID_VARIABLE | HID_ABSOLUTE  ),\
    HID_COLLECTION_END \

//--------------------------------------------------------------------+
// Internal Class Driver API
//--------------------------------------------------------------------+
void     hidd_init            (void);
void     hidd_reset           (uint8_t rhport);
uint16_t hidd_open            (uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len);
bool     hidd_control_xfer_cb (uint8_t rhport, uint8_t stage, tusb_control_request_t const * request);
bool     hidd_xfer_cb         (uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);

#ifdef __cplusplus
 }
#endif

#endif /* _TUSB_HID_DEVICE_H_ */
