Select one of the symbols to view example projects that use it.
 
Outline
Includes
#include "main.h"
Private variables
audio_flag
file_list
audio_select_mode
audio_demo
audio_state
AUDIO_main_menu
Private function prototypes
AUDIO_MenuProcess()
AUDIO_MenuSelectItem(uint8_t **, uint8_t)
AUDIO_MenuProbeKey(JOYState_TypeDef)
Audio_ChangeSelectMode(AUDIO_DEMO_SelectMode)
Audio_ShowWavFiles()
LCD_ClearTextZone()
Files
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CodeScopeSTM32 Libraries and SamplesDynamicSwitch_StandaloneSrc/audio_menu.c
 
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/** ****************************************************************************** * @file USB_Host/DynamicSwitch_Standalone/Src/audio_menu.c * @author MCD Application Team * @brief This file implements Audio 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" Includes /* Private typedef ----------------------------------------------------------- */ /* Private define ------------------------------------------------------------ */ /* Private macro ------------------------------------------------------------- */ /* Private variables --------------------------------------------------------- */ uint32_t audio_flag = 0; FILELIST_FileTypeDef file_list; extern uint8_t prev_select; AUDIO_DEMO_SelectMode audio_select_mode; AUDIO_DEMO_StateMachine audio_demo; AUDIO_PLAYBACK_StateTypeDef audio_state; uint8_t *AUDIO_main_menu[] = { (uint8_t *) " 1 - Explore audio file ", (uint8_t *) " 2 - Start audio Player ", (uint8_t *) " 3 - Re-Enumerate ", ...}; Private variables /* Private function prototypes ----------------------------------------------- */ static uint8_t Audio_ShowWavFiles(void); static void LCD_ClearTextZone(void); Private function prototypes /* Private functions --------------------------------------------------------- */ /** * @brief Manages Audio Menu Process. * @param None * @retval None *//* ... */ void AUDIO_MenuProcess(void) { switch (audio_demo.state) { case AUDIO_DEMO_IDLE: BSP_LCD_SetTextColor(LCD_COLOR_GREEN); BSP_LCD_DisplayStringAtLine(16, (uint8_t *) " "); BSP_LCD_DisplayStringAtLine(17, (uint8_t *) "Use [Buttons Left/Right] to scroll up/down "); BSP_LCD_DisplayStringAtLine(18, (uint8_t *) "Use [Joystick Up/Down] to scroll audio menu "); BSP_LCD_SetTextColor(LCD_COLOR_WHITE); AUDIO_MenuSelectItem(AUDIO_main_menu, 0); audio_demo.state = AUDIO_DEMO_WAIT; audio_demo.select = 0; break; case AUDIO_DEMO_IDLE: case AUDIO_DEMO_WAIT: if (audio_demo.select != prev_select) { prev_select = audio_demo.select; AUDIO_MenuSelectItem(AUDIO_main_menu, audio_demo.select & 0x7F); /* Handle select item */ if (audio_demo.select & 0x80) { audio_demo.select &= 0x7F; switch (audio_demo.select) { case 0: audio_demo.state = AUDIO_DEMO_EXPLORE; break; case 0: 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; audio_demo.state = AUDIO_DEMO_PLAYBACK; Audio_ChangeSelectMode(AUDIO_PLAYBACK_CONTROL); break; case 1: case 2: audio_demo.state = AUDIO_REENUMERATE; break; case 2: default: break;default }switch (audio_demo.select) { ... } }if (audio_demo.select & 0x80) { ... } }if (audio_demo.select != prev_select) { ... } break; case AUDIO_DEMO_WAIT: case AUDIO_DEMO_EXPLORE: if (Appli_state == APPLICATION_AUDIO) { if (Audio_ShowWavFiles() > 0) { LCD_ErrLog("There is no WAV file on the microSD.\n"); Audio_ChangeSelectMode(AUDIO_SELECT_MENU); }if (Audio_ShowWavFiles() > 0) { ... } else { audio_demo.state = AUDIO_DEMO_WAIT; }else { ... } }if (Appli_state == APPLICATION_AUDIO) { ... } break; case AUDIO_DEMO_EXPLORE: case AUDIO_DEMO_PLAYBACK: if (Appli_state == APPLICATION_AUDIO) { if (audio_state == AUDIO_STATE_IDLE) { /* Start Playing... */ audio_state = AUDIO_STATE_INIT; if (AUDIO_Start(0) == AUDIO_ERROR_IO) { Audio_ChangeSelectMode(AUDIO_SELECT_MENU); }if (AUDIO_Start(0) == AUDIO_ERROR_IO) { ... } 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 { ... } }if (audio_state == AUDIO_STATE_IDLE) { ... } else /* Not idle */ { if (AUDIO_Process() == AUDIO_ERROR_IO) { Audio_ChangeSelectMode(AUDIO_SELECT_MENU); }if (AUDIO_Process() == AUDIO_ERROR_IO) { ... } }else { ... } }if (Appli_state == APPLICATION_AUDIO) { ... } break; case AUDIO_DEMO_PLAYBACK: case AUDIO_REENUMERATE: /* Stop Host */ USBH_Stop(&hUSBHost); /* De-Initialize the Host */ USBH_DeInit(&hUSBHost); /* Start again the host */ USBH_Start(&hUSBHost); audio_demo.state = AUDIO_DEMO_WAIT; break; case AUDIO_REENUMERATE: default: break;default }switch (audio_demo.state) { ... } }{ ... } /** * @brief Manages the menu on the screen. * @param menu: Menu table * @param item: Selected item to be highlighted * @retval None *//* ... */ void AUDIO_MenuSelectItem(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(19, menu[0]); BSP_LCD_SetBackColor(LCD_COLOR_BLUE); BSP_LCD_DisplayStringAtLine(20, menu[1]); BSP_LCD_DisplayStringAtLine(21, menu[2]); break; case 0: case 1: BSP_LCD_SetBackColor(LCD_COLOR_BLUE); BSP_LCD_DisplayStringAtLine(19, menu[0]); BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA); BSP_LCD_DisplayStringAtLine(20, menu[1]); BSP_LCD_SetBackColor(LCD_COLOR_BLUE); BSP_LCD_DisplayStringAtLine(21, menu[2]); break; case 1: case 2: BSP_LCD_SetBackColor(LCD_COLOR_BLUE); BSP_LCD_DisplayStringAtLine(19, menu[0]); BSP_LCD_DisplayStringAtLine(20, menu[1]); BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA); BSP_LCD_DisplayStringAtLine(21, menu[2]); break; case 2: default: BSP_LCD_SetBackColor(LCD_COLOR_BLUE); BSP_LCD_DisplayStringAtLine(19, menu[0]); BSP_LCD_DisplayStringAtLine(20, menu[1]); BSP_LCD_DisplayStringAtLine(21, menu[2]); break;default }switch (item) { ... } BSP_LCD_SetBackColor(LCD_COLOR_BLACK); }{ ... } /** * @brief Probes the Audio joystick state. * @param state: Joystick state * @retval None *//* ... */ void AUDIO_MenuProbeKey(JOYState_TypeDef state) { /* Handle Joystick inputs */ if (audio_select_mode == AUDIO_SELECT_MENU) { /* Handle Menu inputs */ if ((state == JOY_UP) && (audio_demo.select > 0)) { audio_demo.select--; }if ((state == JOY_UP) && (audio_demo.select > 0)) { ... } else if ((audio_demo.select < 2) && (state == JOY_DOWN)) { audio_demo.select++; }else if ((audio_demo.select < 2) && (state == JOY_DOWN)) { ... } else if (state == JOY_SEL) { audio_demo.select |= 0x80; }else if (state == JOY_SEL) { ... } }if (audio_select_mode == AUDIO_SELECT_MENU) { ... } else { AUDIO_PlaybackProbeKey(state); }else { ... } }{ ... } /** * @brief Changes the selection mode. * @param select_mode: Selection mode * @retval None *//* ... */ void Audio_ChangeSelectMode(AUDIO_DEMO_SelectMode select_mode) { if (select_mode == AUDIO_SELECT_MENU) { AUDIO_MenuSelectItem(AUDIO_main_menu, 0x00); LCD_ClearTextZone(); LCD_LOG_UpdateDisplay(); audio_demo.state = AUDIO_DEMO_IDLE; AUDIO_Stop(); }if (select_mode == AUDIO_SELECT_MENU) { ... } else if (select_mode == AUDIO_PLAYBACK_CONTROL) { LCD_ClearTextZone(); AUDIO_MenuSelectItem(AUDIO_main_menu, 0xFF); }else if (select_mode == AUDIO_PLAYBACK_CONTROL) { ... } audio_select_mode = select_mode; audio_demo.select = 0; }{ ... } /** * @brief Shows audio file (*.wav) on the root * @param None * @retval None *//* ... */ static uint8_t Audio_ShowWavFiles(void) { uint8_t i; uint8_t line_idx = 0; if ((FileList.ptr > 0) && (BSP_SD_IsDetected())) { BSP_LCD_SetTextColor(LCD_COLOR_WHITE); LCD_UsrLog("audio file(s) [ROOT]:\n\n"); for (i = 0; i < FileList.ptr; i++) { line_idx++; if (line_idx > 9) { line_idx = 0; LCD_UsrLog("> Press [Key] To Continue.\n"); /* KEY Button in polling */ while (BSP_PB_GetState(BUTTON_KEY) != RESET) { /* Wait for User Input */ }while (BSP_PB_GetState(BUTTON_KEY) != RESET) { ... } }if (line_idx > 9) { ... } LCD_DbgLog(" |__"); LCD_DbgLog((char *)FileList.file[i].name); LCD_DbgLog("\n"); }for (i = 0; i < FileList.ptr; i++) { ... } BSP_LCD_SetTextColor(LCD_COLOR_WHITE); LCD_UsrLog("\nEnd of files list.\n"); return 0; }if ((FileList.ptr > 0) && (BSP_SD_IsDetected())) { ... } else { return 1; }else { ... } }{ ... } /** * @brief Clear the Text Zone * @param None * @retval None *//* ... */ static void LCD_ClearTextZone(void) { uint8_t i = 0; for (i = 0; i < 12; i++) { BSP_LCD_ClearStringLine(i + 3); }for (i = 0; i < 12; i++) { ... } }{ ... }