/*
 * Copyright (C) OpenTX
 *
 * Based on code named
 *   th9x - http://code.google.com/p/th9x
 *   er9x - http://code.google.com/p/er9x
 *   gruvin9x - http://code.google.com/p/gruvin9x
 *
 * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#pragma once

#include <inttypes.h>
#include "dataconstants.h"

// Device (destination) address
#define GHST_ADDR_RADIO                 0x80    // phase 1
#define GHST_ADDR_MODULE_SYM            0x81    // symmetrical, 400k pulses, 400k telemetry
#define GHST_ADDR_MODULE_ASYM           0x88    // asymmetrical, 400k pulses, 115k telemetry
#define GHST_ADDR_FC                    0x82
#define GHST_ADDR_GOGGLES               0x83    // phase 2
#define GHST_ADDR_5G_TXCTRL             0x84	// phase 3
#define GHST_ADDR_5G_TWRSCAN            0x85
#define GHST_ADDR_5G_RLY                0x86

#define GHST_UL_RC_CHANS_HS4_5TO8	0x10	// High Speed 4 channel (12 bits), plus CH5-8 (8 bits)
#define GHST_UL_RC_CHANS_HS4_9TO12	0x11	// High Speed 4 channel (12 bits), plus CH9-12 (8 bits)
#define GHST_UL_RC_CHANS_HS4_13TO16	0x12	// High Speed 4 channel (12 bits), plus CH13-16 (8 bits)
#define GHST_UL_RC_CHANS_SIZE           12      // 1 (type) + 10 (data) + 1 (crc)
#define GHST_UL_MENU_CTRL               0x13

#define GHST_DL_OPENTX_SYNC		0x20
#define GHST_DL_LINK_STAT               0x21
#define GHST_DL_VTX_STAT                0x22
#define GHST_DL_PACK_STAT               0x23
#define GHST_DL_MENU_DESC               0x24
#define GHST_DL_GPS_PRIMARY             0x25
#define GHST_DL_GPS_SECONDARY           0x26

#define GHST_RC_CTR_VAL_12BIT		0x7C0   // 0x3e0 << 1
#define GHST_RC_CTR_VAL_8BIT		0x7C

#define GHST_CH_BITS_12                 12
#define GHST_CH_BITS_8                  8

enum GhstPowerMode
{
  GHST_PWR_16UW =   0,
  GHST_PWR_100UW =  1,
  GHST_PWR_1MW =    2,
  GHST_PWR_25MW =   3,
  GHST_PWR_100MW =  4,
  GHST_PWR_200MW =  5,
  GHST_PWR_350MW =  6,
  GHST_PWR_500MW =  7,
  GHST_PWR_600MW =  8,
  GHST_PWR_1W =     9,
  GHST_PWR_1_5W =   10,
  GHST_PWR_2W =     11,
  GHST_PWR_3W =     12,
  GHST_PWR_4W =     13,
  GHST_PWR_COUNT
};

enum GhstRFProfile
{
  GHST_RF_PROFILE_Auto        = 0,
  GHST_RF_PROFILE_Normal      = 1,
  GHST_RF_PROFILE_Race        = 2,
  GHST_RF_PROFILE_PureRace    = 3,
  GHST_RF_PROFILE_LongRange   = 4,
  GHST_RF_PROFILE_Reserved    = 5,
  GHST_RF_PROFILE_Race2       = 6,
  GHST_RF_PROFILE_PureRace2   = 7,
  GHST_RF_PROFILE_MAX = GHST_RF_PROFILE_PureRace2,
  GHST_RF_PROFILE_COUNT
};

enum GhstVtxBand
{
  GHST_VTX_BAND_Unknown     = 0,
  GHST_VTX_BAND_Irc         = 1,
  GHST_VTX_BAND_Race        = 2,
  GHST_VTX_BAND_BandE       = 3,
  GHST_VTX_BAND_BandB       = 4,
  GHST_VTX_BAND_BandA       = 5,
  GHST_VTX_BAND_MAX = GHST_VTX_BAND_BandA,
  GHST_VTX_BAND_COUNT
};

void processGhostTelemetryData(uint8_t data);
void ghostSetDefault(int index, uint8_t id, uint8_t subId);

#if SPORT_MAX_BAUDRATE < 400000
// For radios which can't support telemetry at high rates, offer baud rate choices
// (modified vs. unmodified radios)

constexpr uint16_t BRR_400K = PERI1_FREQUENCY / 400000;
constexpr uint16_t BRR_115K = PERI1_FREQUENCY / 115200;

enum GhostTelemetryBaudrates
{
  GHST_TELEMETRY_RATE_400K,
  GHST_TELEMETRY_RATE_115K
};
#endif
#define GHOST_BAUDRATE       400000
#define GHOST_PERIOD         4

enum GhostLineFlags
{
  GHST_LINE_FLAGS_NONE = 0x00,
  GHST_LINE_FLAGS_LABEL_SELECT = 0x01,
  GHST_LINE_FLAGS_VALUE_SELECT = 0x02,
  GHST_LINE_FLAGS_VALUE_EDIT = 0x04,
};

enum GhostButtons
{
  GHST_BTN_NONE = 0x00,
  GHST_BTN_JOYPRESS = 0X01,
  GHST_BTN_JOYUP = 0X02,
  GHST_BTN_JOYDOWN = 0X04,
  GHST_BTN_JOYLEFT = 0X08,
  GHST_BTN_JOYRIGHT = 0X10,
  GHST_BTN_BIND = 0X20			// future, for no-UI Ghost
};

enum GhostMenuControl
{
  GHST_MENU_CTRL_NONE = 0X00,
  GHST_MENU_CTRL_OPEN = 0X01,
  GHST_MENU_CTRL_CLOSE = 0X02,
  GHST_MENU_CTRL_REDRAW = 0X04,
};

enum GhostMenuStatus
{
  GHST_MENU_STATUS_UNOPENED = 0x00,
  GHST_MENU_STATUS_OPENED = 0x01,
  GHST_MENU_STATUS_CLOSING = 0x02,
};

enum GhostFrames
{
  GHST_FRAME_CHANNEL,
  GHST_MENU_CONTROL
};

constexpr uint8_t GHST_MENU_LINES = 6;
constexpr uint8_t GHST_MENU_CHARS = 20;

// GHST_DL_MENU_DESC (27 bytes)
struct GhostMenuFrame
{
  uint8_t address;
  uint8_t length ;
  uint8_t packetId;
  uint8_t menuStatus;    // GhostMenuStatus
  uint8_t lineFlags;     // GhostLineFlags
  uint8_t lineIndex;     // 0 = first line
  unsigned char menuText[GHST_MENU_CHARS];
  uint8_t crc;
};

struct GhostMenuData
{
  uint8_t menuStatus;    // Update Line, Clear Menu, etc.
  uint8_t lineFlags;     // Carat states, Inverse, Bold for each of Menu Label, and Value
  uint8_t splitLine;     // Store beginning of Value substring
  char menuText[GHST_MENU_CHARS + 1];
};