/**
* @brief User Process
* @param phost: Host Handle
* @param id: Host Library user message ID
* @retval None
*/
static void USBH_UserProcess(USBH_HandleTypeDef *phost, uint8_t id)
{
switch(id)
{
case HOST_USER_SELECT_CONFIGURATION:
break;
case HOST_USER_DISCONNECTION:
Appli_state = APPLICATION_DISCONNECT;
if(USBH_GetActiveClass(phost) == AC_CLASS)
{
Audio_ChangeSelectMode(AUDIO_SELECT_MENU);
}
break;
case HOST_USER_CONNECTION:
break;
case HOST_USER_CLASS_ACTIVE:
switch(USBH_GetActiveClass(phost))
{
case USB_MSC_CLASS:
Appli_state = APPLICATION_MSC;
/* Link the USB disk I/O driver */
FATFS_LinkDriver(&USBH_Driver, USBDISKPath);
break;
case AC_CLASS:
Appli_state = APPLICATION_AUDIO;
/* Init SD Storage */
if (SD_StorageInit() == 0)
{
SD_StorageParse();
}
break;
case USB_HID_CLASS:
Appli_state = APPLICATION_HID;
break;
}
break;
}
}
/**
* @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_8)
{
/* Get the Joystick State */
JoyState = BSP_JOY_GetState();
HAL_Delay(200);
/* Clear joystick interrupt pending bits */
BSP_IO_ITClear();
if(Appli_state == APPLICATION_MSC)
{
MSC_DEMO_ProbeKey(JoyState);
}
else if(Appli_state == APPLICATION_HID)
{
HID_DEMO_ProbeKey(JoyState);
}
else if(Appli_state == APPLICATION_AUDIO)
{
if(audio_select_mode == AUDIO_SELECT_MENU)
{
AUDIO_MenuProbeKey(JoyState);
}
else if(audio_select_mode == AUDIO_PLAYBACK_CONTROL)
{
AUDIO_PlaybackProbeKey(JoyState);
}
}
switch(JoyState)
{
case JOY_LEFT:
LCD_LOG_ScrollBack();
break;
case JOY_RIGHT:
LCD_LOG_ScrollForward();
break;
default:
break;
}
}
if(audio_demo.state == AUDIO_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(audio_select_mode == AUDIO_SELECT_MENU)
{
Audio_ChangeSelectMode(AUDIO_PLAYBACK_CONTROL);
}
else if(audio_select_mode == AUDIO_PLAYBACK_CONTROL)
{
Audio_ChangeSelectMode(AUDIO_SELECT_MENU);
}
}
}
}
/**
* @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_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 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 2:
audio_demo.state = AUDIO_REENUMERATE;
break;
default:
break;
}
}
}
break;
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);
}
else
{
audio_demo.state = AUDIO_DEMO_WAIT;
}
}
break;
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);
}
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)
{
Audio_ChangeSelectMode(AUDIO_SELECT_MENU);
}
}
}
break;
case AUDIO_REENUMERATE:
/* Force Audio Device to re-enumerate */
USBH_ReEnumerate(&hUSBHost);
audio_demo.state = AUDIO_DEMO_WAIT;
break;
default:
break;
}
}