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-rw-r--r--Demos/Host/Incomplete/AudioOutputHost/AudioOutputHost.c255
1 files changed, 0 insertions, 255 deletions
diff --git a/Demos/Host/Incomplete/AudioOutputHost/AudioOutputHost.c b/Demos/Host/Incomplete/AudioOutputHost/AudioOutputHost.c
deleted file mode 100644
index 15d00c0e1..000000000
--- a/Demos/Host/Incomplete/AudioOutputHost/AudioOutputHost.c
+++ /dev/null
@@ -1,255 +0,0 @@
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2011.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
-
- Permission to use, copy, modify, distribute, and sell this
- software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
- all copies and that both that the copyright notice and this
- permission notice and warranty disclaimer appear in supporting
- documentation, and that the name of the author not be used in
- advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
-
- The author disclaim all warranties with regard to this
- software, including all implied warranties of merchantability
- and fitness. In no event shall the author be liable for any
- special, indirect or consequential damages or any damages
- whatsoever resulting from loss of use, data or profits, whether
- in an action of contract, negligence or other tortious action,
- arising out of or in connection with the use or performance of
- this software.
-*/
-
-/** \file
- *
- * Main source file for the AudioOutputHost demo. This file contains the main tasks of
- * the demo and is responsible for the initial application hardware configuration.
- */
-
-#include "AudioOutputHost.h"
-
-/** Main program entry point. This routine configures the hardware required by the application, then
- * enters a loop to run the application tasks in sequence.
- */
-int main(void)
-{
- SetupHardware();
-
- puts_P(PSTR(ESC_FG_CYAN "Audio Output Host Demo running.\r\n" ESC_FG_WHITE));
-
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
- sei();
-
- for (;;)
- {
- Audio_Task();
- USB_USBTask();
- }
-}
-
-/** Configures the board hardware and chip peripherals for the demo's functionality. */
-void SetupHardware(void)
-{
- /* Disable watchdog if enabled by bootloader/fuses */
- MCUSR &= ~(1 << WDRF);
- wdt_disable();
-
- /* Disable clock division */
- clock_prescale_set(clock_div_1);
-
- /* Hardware Initialization */
- Serial_Init(9600, false);
- Buttons_Init();
- LEDs_Init();
- USB_Init();
-
- /* Create a stdio stream for the serial port for stdin and stdout */
- Serial_CreateStream(NULL);
-}
-
-/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
- * starts the library USB task to begin the enumeration and USB management process.
- */
-void EVENT_USB_Host_DeviceAttached(void)
-{
- puts_P(PSTR(ESC_FG_GREEN "Device Attached.\r\n" ESC_FG_WHITE));
- LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
-}
-
-/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
- * stops the library USB task management process.
- */
-void EVENT_USB_Host_DeviceUnattached(void)
-{
- puts_P(PSTR(ESC_FG_GREEN "Device Unattached.\r\n" ESC_FG_WHITE));
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-}
-
-/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
- * enumerated by the host and is now ready to be used by the application.
- */
-void EVENT_USB_Host_DeviceEnumerationComplete(void)
-{
- LEDs_SetAllLEDs(LEDMASK_USB_READY);
-}
-
-/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
-void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
-{
- USB_Disable();
-
- printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
- " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
-
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
- for(;;);
-}
-
-/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
- * enumerating an attached USB device.
- */
-void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
- const uint8_t SubErrorCode)
-{
- printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
- " -- Error Code %d\r\n"
- " -- Sub Error Code %d\r\n"
- " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
-
- 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)
-{
- uint8_t PrevPipe = Pipe_GetCurrentPipe();
-
- Pipe_SelectPipe(AUDIO_DATA_OUT_PIPE);
- Pipe_Unfreeze();
-
- /* Check if the current pipe can be written to (device ready for more data) */
- if (Pipe_IsOUTReady())
- {
- static uint8_t SquareWaveSampleCount;
- static int16_t CurrentWaveValue;
-
- if (SquareWaveSampleCount++ == 0xFF)
- CurrentWaveValue ^= 0x8000;
-
- /* Only generate audio if the board button is being pressed */
- int16_t Sample_16Bit = (Buttons_GetStatus() & BUTTONS_BUTTON1) ? CurrentWaveValue : 0;
-
- Pipe_Write_16_LE(Sample_16Bit);
- Pipe_Write_16_LE(Sample_16Bit);
-
- if (!(Pipe_IsReadWriteAllowed()))
- Pipe_ClearOUT();
- }
-
- Pipe_Freeze();
- Pipe_SelectPipe(PrevPipe);
-}
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