Add LUFA-side channel open/close routines, add signalling handlers for the creation...

[pub/USBasp.git] / Demos / Device / ClassDriver / AudioInput / AudioInput.c

diff --git a/Demos/Device/ClassDriver/AudioInput/AudioInput.c b/Demos/Device/ClassDriver/AudioInput/AudioInput.c
index af0f6d2..22d0173 100644 (file)
--- a/Demos/Device/ClassDriver/AudioInput/AudioInput.c
+++ b/Demos/Device/ClassDriver/AudioInput/AudioInput.c
@@ -1,21 +1,21 @@
 /*\r
              LUFA Library\r
 /*\r
              LUFA Library\r

-     Copyright (C) Dean Camera, 2009.\r
+     Copyright (C) Dean Camera, 2010.\r

               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r
               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r

-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
-  Permission to use, copy, modify, and distribute this software\r
-  and its documentation for any purpose and without fee is hereby\r
-  granted, provided that the above copyright notice appear in all\r
-  copies and that both that the copyright notice and this\r
-  permission notice and warranty disclaimer appear in supporting\r
-  documentation, and that the name of the author not be used in\r
-  advertising or publicity pertaining to distribution of the\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+  Permission to use, copy, modify, distribute, and sell this \r
+  software and its documentation for any purpose is hereby granted\r
+  without fee, provided that the above copyright notice appear in \r
+  all copies and that both that the copyright notice and this\r
+  permission notice and warranty disclaimer appear in supporting \r
+  documentation, and that the name of the author not be used in \r
+  advertising or publicity pertaining to distribution of the \r

   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r
   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r


@@ -49,11 +49,6 @@ USB_ClassInfo_Audio_Device_t Microphone_Audio_Interface =
                                .DataINEndpointNumber     = AUDIO_STREAM_EPNUM,\r
                                .DataINEndpointSize       = AUDIO_STREAM_EPSIZE,\r
                        },\r
                                .DataINEndpointNumber     = AUDIO_STREAM_EPNUM,\r
                                .DataINEndpointSize       = AUDIO_STREAM_EPSIZE,\r
                        },\r

-               \r
-               .State =\r
-                       {\r
-                               // Leave all state values to their defaults\r
-                       }\r

        };\r
 \r
 /** Main program entry point. This routine contains the overall program flow, including initial\r
        };\r
 \r
 /** Main program entry point. This routine contains the overall program flow, including initial\r


@@ -67,8 +62,7 @@ int main(void)
        \r
        for (;;)\r
        {\r
        \r
        for (;;)\r
        {\r

-               if (Microphone_Audio_Interface.State.InterfaceEnabled)\r
-                 ProcessNextSample();\r
+               ProcessNextSample();\r

 \r
                Audio_Device_USBTask(&Microphone_Audio_Interface);\r
                USB_USBTask();\r
 \r
                Audio_Device_USBTask(&Microphone_Audio_Interface);\r
                USB_USBTask();\r


@@ -92,7 +86,7 @@ void SetupHardware(void)
        ADC_SetupChannel(MIC_IN_ADC_CHANNEL);\r
        \r
        /* Start the ADC conversion in free running mode */\r
        ADC_SetupChannel(MIC_IN_ADC_CHANNEL);\r
        \r
        /* Start the ADC conversion in free running mode */\r

-       ADC_StartReading(ADC_REFERENCE_AVCC | ADC_RIGHT_ADJUSTED | MIC_IN_ADC_CHANNEL);\r
+       ADC_StartReading(ADC_REFERENCE_AVCC | ADC_RIGHT_ADJUSTED | MIC_IN_ADC_MUX_MASK);\r

 }\r
 \r
 /** Processes the next audio sample by reading the last ADC conversion and writing it to the audio\r
 }\r
 \r
 /** Processes the next audio sample by reading the last ADC conversion and writing it to the audio\r


@@ -100,6 +94,7 @@ void SetupHardware(void)
  */\r
 void ProcessNextSample(void)\r
 {\r
  */\r
 void ProcessNextSample(void)\r
 {\r

+       /* Check if the sample reload timer period has elapsed, and that the USB bus is ready for a new sample */\r

        if ((TIFR0 & (1 << OCF0A)) && Audio_Device_IsReadyForNextSample(&Microphone_Audio_Interface))\r
        {\r
                TIFR0 |= (1 << OCF0A);\r
        if ((TIFR0 & (1 << OCF0A)) && Audio_Device_IsReadyForNextSample(&Microphone_Audio_Interface))\r
        {\r
                TIFR0 |= (1 << OCF0A);\r


@@ -107,28 +102,28 @@ void ProcessNextSample(void)
                /* Audio sample is ADC value scaled to fit the entire range */\r
                int16_t AudioSample = ((SAMPLE_MAX_RANGE / ADC_MAX_RANGE) * ADC_GetResult());\r
                \r
                /* Audio sample is ADC value scaled to fit the entire range */\r
                int16_t AudioSample = ((SAMPLE_MAX_RANGE / ADC_MAX_RANGE) * ADC_GetResult());\r
                \r

-#if defined(MICROPHONE_BIASED_TO_HALF_RAIL)\r
+               #if defined(MICROPHONE_BIASED_TO_HALF_RAIL)\r

                /* Microphone is biased to half rail voltage, subtract the bias from the sample value */\r
                /* Microphone is biased to half rail voltage, subtract the bias from the sample value */\r

-               AudioSample -= (SAMPLE_MAX_RANGE / 2));\r
-#endif\r
+               AudioSample -= (SAMPLE_MAX_RANGE / 2);\r
+               #endif\r

 \r
 \r

-               Audio_Device_WriteSample16(AudioSample);\r
+               Audio_Device_WriteSample16(&Microphone_Audio_Interface, AudioSample);\r

        }\r
 }\r
 \r
 /** Event handler for the library USB Connection event. */\r
        }\r
 }\r
 \r
 /** Event handler for the library USB Connection event. */\r

-void EVENT_USB_Connect(void)\r
+void EVENT_USB_Device_Connect(void)\r

 {\r
        LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
 \r
        /* Sample reload timer initialization */\r
 {\r
        LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
 \r
        /* Sample reload timer initialization */\r

-       OCR0A   = (F_CPU / AUDIO_SAMPLE_FREQUENCY) - 1;\r
+       OCR0A   = (F_CPU / 8 / AUDIO_SAMPLE_FREQUENCY) - 1;\r

        TCCR0A  = (1 << WGM01);  // CTC mode\r
        TCCR0A  = (1 << WGM01);  // CTC mode\r

-       TCCR0B  = (1 << CS00);   // Fcpu speed\r
+       TCCR0B  = (1 << CS01);   // Fcpu/8 speed\r

 }\r
 \r
 /** Event handler for the library USB Disconnection event. */\r
 }\r
 \r
 /** Event handler for the library USB Disconnection event. */\r

-void EVENT_USB_Disconnect(void)\r
+void EVENT_USB_Device_Disconnect(void)\r

 {\r
        /* Stop the sample reload timer */\r
        TCCR0B = 0;\r
 {\r
        /* Stop the sample reload timer */\r
        TCCR0B = 0;\r


@@ -137,7 +132,7 @@ void EVENT_USB_Disconnect(void)
 }\r
 \r
 /** Event handler for the library USB Configuration Changed event. */\r
 }\r
 \r
 /** Event handler for the library USB Configuration Changed event. */\r

-void EVENT_USB_ConfigurationChanged(void)\r
+void EVENT_USB_Device_ConfigurationChanged(void)\r

 {\r
        LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
        \r
 {\r
        LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
        \r


@@ -145,8 +140,8 @@ void EVENT_USB_ConfigurationChanged(void)
          LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
 }\r
 \r
          LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
 }\r
 \r

-/** Event handler for the library USB Unhandled Control Packet event. */\r
-void EVENT_USB_UnhandledControlPacket(void)\r
+/** Event handler for the library USB Unhandled Control Request event. */\r
+void EVENT_USB_Device_UnhandledControlRequest(void)\r

 {\r
 {\r

-       Audio_Device_ProcessControlPacket(&Microphone_Audio_Interface);\r
+       Audio_Device_ProcessControlRequest(&Microphone_Audio_Interface);\r

 }\r
 }\r