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/**
******************************************************************************
* @file USB_Host/MTP_Standalone/Src/menu.c
* @author MCD Application Team
* @brief This file implements Menu Functions
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
MTP_DEMO_StateMachine mtp_demo;
uint8_t prev_select = 0;
MTP_DEMO_SelectMode mtp_select_mode;
AUDIO_PLAYBACK_StateTypeDef audio_state;
uint8_t *MTP_main_menu[] =
{
(uint8_t *)" 1 - Explore audio file ",
(uint8_t *)" 2 - Start audio Player ",
(uint8_t *)" 3 - Re-Enumerate ",
};
/* Private function prototypes -----------------------------------------------*/
static void MTP_SelectItem(uint8_t **menu, uint8_t item);
static void MTP_MenuProbeKey(JOYState_TypeDef state);
static void MTP_ChangeSelectMode(MTP_DEMO_SelectMode select_mode);
static void LCD_ClearTextZone(void);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Demo state machine.
* @param None
* @retval None
*/
void MTP_MenuInit(void)
{
mtp_demo.state = MTP_DEMO_IDLE;
mtp_select_mode = MTP_SELECT_MENU;
MTP_SelectItem(MTP_main_menu, 0);
}
/**
* @brief Manages MTP Menu Process.
* @param None
* @retval None
*/
void MTP_MenuProcess(void)
{
switch(mtp_demo.state)
{
case MTP_DEMO_IDLE:
MTP_SelectItem(MTP_main_menu, 0);
mtp_demo.state = MTP_DEMO_WAIT;
mtp_demo.select = 0;
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAtLine(15, (uint8_t *)"Use [Joystick Left/Right] to scroll up/down");
BSP_LCD_DisplayStringAtLine(16, (uint8_t *)"Use [Joystick Up/Down] to scroll MTP menu");
break;
case MTP_DEMO_WAIT:
if(mtp_demo.select != prev_select)
{
prev_select = mtp_demo.select;
MTP_SelectItem(MTP_main_menu, mtp_demo.select & 0x7F);
/* Handle select item */
if(mtp_demo.select & 0x80)
{
switch(mtp_demo.select & 0x7F)
{
case 0:
mtp_demo.state = MTP_DEMO_EXPLORE;
break;
case 1:
/* Display HMI messages */
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAtLine(14, (uint8_t *)" ");
BSP_LCD_DisplayStringAtLine(15, (uint8_t *)" ");
BSP_LCD_DisplayStringAtLine(16, (uint8_t *)"Use [User Key] To Stop and return from player");
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
/* Set PLAYBACK state and start playing 1st file */
audio_state = AUDIO_STATE_IDLE;
mtp_demo.state = MTP_DEMO_PLAYBACK;
MTP_ChangeSelectMode(MTP_PLAYBACK_CONTROL);
break;
case 2:
mtp_demo.state = MTP_REENUMERATE;
break;
default:
break;
}
}
}
break;
case MTP_DEMO_EXPLORE:
if(Appli_state == APPLICATION_READY)
{
if(MTP_Init() == 0)
{
if(MTP_ExploreWavFile() > 0)
{
LCD_ErrLog("There is no WAV file on the microSD.\n" );
MTP_ChangeSelectMode(MTP_SELECT_MENU);
mtp_demo.state = MTP_DEMO_IDLE;
}
else
{
mtp_demo.state = MTP_DEMO_WAIT;
}
}
}
else
{
mtp_demo.state = MTP_DEMO_WAIT;
}
break;
case MTP_DEMO_PLAYBACK:
if(Appli_state == APPLICATION_READY)
{
if(MTP_Init() == 0)
{
if(audio_state == AUDIO_STATE_IDLE)
{
/* Start Playing */
audio_state = AUDIO_STATE_INIT;
if(AUDIO_Start(0) == AUDIO_ERROR_IO)
{
MTP_ChangeSelectMode(MTP_SELECT_MENU);
mtp_demo.state = MTP_DEMO_IDLE;
}
else
{
BSP_LCD_SetTextColor(LCD_COLOR_YELLOW);
BSP_LCD_DisplayStringAtLine(10, (uint8_t *)"[ UP ] : Volume +");
BSP_LCD_DisplayStringAtLine(11, (uint8_t *)"[ DOWN ] : Volume -");
BSP_LCD_DisplayStringAtLine(12, (uint8_t *)"[ LEFT ] : Previous");
BSP_LCD_DisplayStringAtLine(13, (uint8_t *)"[ RIGHT ] : Next");
BSP_LCD_DisplayStringAtLine(14, (uint8_t *)"[ SEL ] : Pause/Resume");
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
}
}
else /* Not idle */
{
if(AUDIO_Process() == AUDIO_ERROR_IO)
{
MTP_ChangeSelectMode(MTP_SELECT_MENU);
mtp_demo.state = MTP_DEMO_IDLE;
}
}
}
}
else
{
mtp_demo.state = MTP_DEMO_WAIT;
}
break;
case MTP_REENUMERATE:
/* Force MTP Device to re-enumerate */
USBH_ReEnumerate(&hUSBHost);
mtp_demo.state = MTP_DEMO_WAIT;
break;
default:
break;
}
if(Appli_state == APPLICATION_DISCONNECT)
{
Appli_state = APPLICATION_IDLE;
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
MTP_ChangeSelectMode(MTP_SELECT_MENU);
}
mtp_demo.select &= 0x7F;
}
/**
* @brief Manages the menu on the screen.
* @param menu: Menu table
* @param item: Selected item to be highlighted
* @retval None
*/
static void MTP_SelectItem(uint8_t **menu, uint8_t item)
{
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
switch(item)
{
case 0:
BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA);
BSP_LCD_DisplayStringAtLine(17, menu [0]);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(18, menu [1]);
BSP_LCD_DisplayStringAtLine(19, menu [2]);
break;
case 1:
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(17, menu [0]);
BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA);
BSP_LCD_DisplayStringAtLine(18, menu [1]);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(19, menu [2]);
break;
case 2:
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(17, menu [0]);
BSP_LCD_DisplayStringAtLine(18, menu [1]);
BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA);
BSP_LCD_DisplayStringAtLine(19, menu [2]);
break;
default:
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(17, menu [0]);
BSP_LCD_DisplayStringAtLine(18, menu [1]);
BSP_LCD_DisplayStringAtLine(19, menu [2]);
break;
}
BSP_LCD_SetBackColor(LCD_COLOR_BLACK);
}
/**
* @brief Probes the MTP joystick state.
* @param state: Joystick state
* @retval None
*/
static void MTP_MenuProbeKey(JOYState_TypeDef state)
{
/* Handle Menu inputs */
if((state == JOY_UP) && (mtp_demo.select > 0))
{
mtp_demo.select--;
}
else if((state == JOY_DOWN) && (mtp_demo.select < 2))
{
mtp_demo.select++;
}
else if(state == JOY_SEL)
{
if(USBH_MTP_IsReady(&hUSBHost) > 0)
{
mtp_demo.select |= 0x80;
}
}
}
/**
* @brief EXTI line detection callbacks.
* @param GPIO_Pin: Specifies the pins connected EXTI line
* @retval None
*/
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
static JOYState_TypeDef JoyState = JOY_NONE;
static uint32_t debounce_time = 0;
if(GPIO_Pin == GPIO_PIN_2)
{
/* Get the Joystick State */
JoyState = BSP_JOY_GetState();
/* Clear joystick interrupt pending bits */
BSP_IO_ITClear(JOY_ALL_PINS);
if(mtp_select_mode == MTP_SELECT_MENU)
{
MTP_MenuProbeKey(JoyState);
switch(JoyState)
{
case JOY_LEFT:
LCD_LOG_ScrollBack();
break;
case JOY_RIGHT:
LCD_LOG_ScrollForward();
break;
default:
break;
}
}
else if(mtp_select_mode == MTP_PLAYBACK_CONTROL)
{
AUDIO_PlaybackProbeKey(JoyState);
}
}
if(mtp_demo.state == MTP_DEMO_PLAYBACK)
{
if(GPIO_Pin == KEY_BUTTON_PIN)
{
/* Prevent debounce effect for user key */
if((HAL_GetTick() - debounce_time) > 50)
{
debounce_time = HAL_GetTick();
}
else
{
return;
}
/* Change the selection type */
if(mtp_select_mode == MTP_SELECT_MENU)
{
MTP_ChangeSelectMode(MTP_PLAYBACK_CONTROL);
}
else if(mtp_select_mode == MTP_PLAYBACK_CONTROL)
{
AUDIO_Stop();
}
}
}
}
/**
* @brief Changes the selection mode.
* @param select_mode: Selection mode
* @retval None
*/
static void MTP_ChangeSelectMode(MTP_DEMO_SelectMode select_mode)
{
if(select_mode == MTP_SELECT_MENU)
{
MTP_SelectItem(MTP_main_menu, 0x00);
LCD_ClearTextZone();
LCD_LOG_UpdateDisplay();
}
else if(select_mode == MTP_PLAYBACK_CONTROL)
{
LCD_ClearTextZone();
MTP_SelectItem(MTP_main_menu, 0xFF);
}
mtp_select_mode = select_mode;
mtp_demo.select = 0;
}
/**
* @brief Clears the text zone.
* @param None
* @retval None
*/
static void LCD_ClearTextZone(void)
{
uint8_t i = 0;
for(i= 0; i < 13; i++)
{
BSP_LCD_ClearStringLine(i + 3);
}
}
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