Updated all host mode demos and projects to use the EVENT_USB_Host_DeviceEnumerationC...

[pub/USBasp.git] / Demos / Host / LowLevel / AudioOutputHost / AudioOutputHost.c

diff --git a/Demos/Host/LowLevel/AudioOutputHost/AudioOutputHost.c b/Demos/Host/LowLevel/AudioOutputHost/AudioOutputHost.c
index 3f0b4a3..4fdb661 100644 (file)
--- a/Demos/Host/LowLevel/AudioOutputHost/AudioOutputHost.c
+++ b/Demos/Host/LowLevel/AudioOutputHost/AudioOutputHost.c
@@ -50,7 +50,6 @@ int main(void)
 
        for (;;)
        {
-               Audio_Task();
                USB_USBTask();
        }
 }
@@ -100,6 +99,73 @@ void EVENT_USB_Host_DeviceUnattached(void)
  */
 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 {
+       puts_P(PSTR("Getting Config Data.\r\n"));
+
+       uint8_t ErrorCode;
+
+       /* Get and process the configuration descriptor data */
+       if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
+       {
+               if (ErrorCode == ControlError)
+                 puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
+               else
+                 puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
+
+               printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return;
+       }
+
+       /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
+       if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
+       {
+               printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
+                                        " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return;
+       }
+       
+       if ((ErrorCode = USB_Host_SetInterfaceAltSetting(StreamingInterfaceIndex,
+                                                        StreamingInterfaceAltSetting)) != HOST_SENDCONTROL_Successful)
+       {
+               printf_P(PSTR(ESC_FG_RED "Could not set alternative streaming interface setting.\r\n"
+                                        " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return;
+       }
+
+       USB_ControlRequest = (USB_Request_Header_t)
+               {
+                       .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_ENDPOINT),
+                       .bRequest      = AUDIO_REQ_SetCurrent,
+                       .wValue        = (AUDIO_EPCONTROL_SamplingFreq << 8),
+                       .wIndex        = StreamingEndpointAddress,
+                       .wLength       = sizeof(USB_Audio_SampleFreq_t),
+               };
+               
+       USB_Audio_SampleFreq_t SampleRate = AUDIO_SAMPLE_FREQ(48000);
+
+       /* Select the control pipe for the request transfer */
+       Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+       /* Set the sample rate on the streaming interface endpoint */
+       if ((ErrorCode = USB_Host_SendControlRequest(&SampleRate)) != HOST_SENDCONTROL_Successful)
+       {
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               USB_Host_SetDeviceConfiguration(0);
+               return;
+       }
+
+       /* Sample reload timer initialization */
+       TIMSK0  = (1 << OCIE0A);
+       OCR0A   = ((F_CPU / 8 / 48000) - 1);
+       TCCR0A  = (1 << WGM01);  // CTC mode
+       TCCR0B  = (1 << CS01);   // Fcpu/8 speed        
+       
+       puts_P(PSTR("Speaker Enumerated.\r\n"));
        LEDs_SetAllLEDs(LEDMASK_USB_READY);
 }
 
@@ -129,102 +195,6 @@ void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
        LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 }
 
-void Audio_Task(void)
-{
-       uint8_t ErrorCode;
-
-       switch (USB_HostState)
-       {
-               case HOST_STATE_Addressed:
-                       puts_P(PSTR("Getting Config Data.\r\n"));
-
-                       /* Get and process the configuration descriptor data */
-                       if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
-                       {
-                               if (ErrorCode == ControlError)
-                                 puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
-                               else
-                                 puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
-
-                               printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
-
-                               /* Indicate error status */
-                               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
-                               /* Wait until USB device disconnected */
-                               USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                               break;
-                       }
-
-                       /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
-                       if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
-                       {
-                               printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
-                                                        " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
-
-                               /* Indicate error status */
-                               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
-                               /* Wait until USB device disconnected */
-                               USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                               break;
-                       }
-                       
-                       if ((ErrorCode = USB_Host_SetInterfaceAltSetting(StreamingInterfaceIndex,
-                                                                        StreamingInterfaceAltSetting)) != HOST_SENDCONTROL_Successful)
-                       {
-                               printf_P(PSTR(ESC_FG_RED "Could not set alternative streaming interface setting.\r\n"
-                                                        " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
-
-                               /* Indicate error status */
-                               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
-                               /* Wait until USB device disconnected */
-                               USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                               break;
-                       }
-
-                       USB_ControlRequest = (USB_Request_Header_t)
-                               {
-                                       .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_ENDPOINT),
-                                       .bRequest      = AUDIO_REQ_SetCurrent,
-                                       .wValue        = (AUDIO_EPCONTROL_SamplingFreq << 8),
-                                       .wIndex        = StreamingEndpointAddress,
-                                       .wLength       = sizeof(USB_Audio_SampleFreq_t),
-                               };
-                               
-                       USB_Audio_SampleFreq_t SampleRate = AUDIO_SAMPLE_FREQ(48000);
-
-                       /* Select the control pipe for the request transfer */
-                       Pipe_SelectPipe(PIPE_CONTROLPIPE);
-
-                       /* Set the sample rate on the streaming interface endpoint */
-                       if ((ErrorCode = USB_Host_SendControlRequest(&SampleRate)) != HOST_SENDCONTROL_Successful)
-                       {
-                               /* Indicate error status */
-                               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
-                               /* Wait until USB device disconnected */
-                               USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                               break;
-                       }
-       
-                       /* Sample reload timer initialization */
-                       TIMSK0  = (1 << OCIE0A);
-                       OCR0A   = ((F_CPU / 8 / 48000) - 1);
-                       TCCR0A  = (1 << WGM01);  // CTC mode
-                       TCCR0B  = (1 << CS01);   // Fcpu/8 speed        
-                       
-                       puts_P(PSTR("Speaker Enumerated.\r\n"));
-
-                       USB_HostState = HOST_STATE_Configured;
-                       break;
-               case HOST_STATE_Configured:
-                       /* Do nothing - audio stream is handled by the timer interrupt routine */
-                       break;
-       }
-}
-
 /** ISR to handle the reloading of the endpoint with the next sample. */
 ISR(TIMER0_COMPA_vect, ISR_BLOCK)
 {