-/*\r
- LUFA Library\r
- Copyright (C) Dean Camera, 2011.\r
-\r
- dean [at] fourwalledcubicle [dot] com\r
- www.lufa-lib.org\r
-*/\r
-\r
-/*\r
- Copyright 2011 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, including all implied warranties of merchantability\r
- and fitness. In no event shall the author be liable for any\r
- special, indirect or consequential damages or any damages\r
- whatsoever resulting from loss of use, data or profits, whether\r
- in an action of contract, negligence or other tortious action,\r
- arising out of or in connection with the use or performance of\r
- this software.\r
-*/\r
-\r
-/** \file\r
- *\r
- * Main source file for the AudioInputHost demo. This file contains the main tasks of\r
- * the demo and is responsible for the initial application hardware configuration.\r
- */\r
-\r
-#include "AudioInputHost.h"\r
-\r
-/** LUFA Audio Class driver interface configuration and state information. This structure is\r
- * passed to all Audio Class driver functions, so that multiple instances of the same class\r
- * within a device can be differentiated from one another.\r
- */\r
-USB_ClassInfo_Audio_Host_t Microphone_Audio_Interface =\r
- {\r
- .Config =\r
- {\r
- .DataINPipeNumber = 1,\r
- },\r
- };\r
-\r
-\r
-/** Main program entry point. This routine configures the hardware required by the application, then\r
- * enters a loop to run the application tasks in sequence.\r
- */\r
-int main(void)\r
-{\r
- SetupHardware();\r
-\r
- puts_P(PSTR(ESC_FG_CYAN "Audio Input Host Demo running.\r\n" ESC_FG_WHITE));\r
-\r
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
- sei();\r
-\r
- for (;;)\r
- {\r
- switch (USB_HostState)\r
- {\r
- case HOST_STATE_Addressed:\r
- LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
-\r
- uint16_t ConfigDescriptorSize;\r
- uint8_t ConfigDescriptorData[512];\r
-\r
- if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,\r
- sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)\r
- {\r
- puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
- break;\r
- }\r
-\r
- if (Audio_Host_ConfigurePipes(&Microphone_Audio_Interface,\r
- ConfigDescriptorSize, ConfigDescriptorData) != AUDIO_ENUMERROR_NoError)\r
- {\r
- puts_P(PSTR("Attached Device Not a Valid Audio Input Device.\r\n"));\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
- break;\r
- }\r
-\r
- if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)\r
- {\r
- puts_P(PSTR("Error Setting Device Configuration.\r\n"));\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
- break;\r
- }\r
-\r
- if (Audio_Host_StartStopStreaming(&Microphone_Audio_Interface, true) != HOST_SENDCONTROL_Successful)\r
- {\r
- puts_P(PSTR("Error Enabling Audio Stream.\r\n"));\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
- break;\r
- }\r
- \r
- USB_Audio_SampleFreq_t SampleRate = AUDIO_SAMPLE_FREQ(48000);\r
- if (Audio_Host_GetSetEndpointProperty(&Microphone_Audio_Interface, Microphone_Audio_Interface.Config.DataINPipeNumber,\r
- AUDIO_REQ_SetCurrent, AUDIO_EPCONTROL_SamplingFreq,\r
- sizeof(SampleRate), &SampleRate) != HOST_SENDCONTROL_Successful)\r
- {\r
- puts_P(PSTR("Error Setting Audio Sampling Frequency.\r\n"));\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
- break; \r
- }\r
-\r
- /* Sample reload timer initialization */\r
- TIMSK0 = (1 << OCIE0A);\r
- OCR0A = ((F_CPU / 8 / 48000) - 1);\r
- TCCR0A = (1 << WGM01); // CTC mode\r
- TCCR0B = (1 << CS01); // Fcpu/8 speed \r
-\r
- /* Set speaker as output */\r
- DDRC |= (1 << 6);\r
-\r
- /* PWM speaker timer initialization */\r
- TCCR3A = ((1 << WGM30) | (1 << COM3A1) | (1 << COM3A0)); // Set on match, clear on TOP\r
- TCCR3B = ((1 << WGM32) | (1 << CS30)); // Fast 8-Bit PWM, F_CPU speed\r
-\r
- puts_P(PSTR("Audio Device Enumerated.\r\n"));\r
- LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
- USB_HostState = HOST_STATE_Configured;\r
- break;\r
- case HOST_STATE_Configured:\r
- /* Do nothing - audio stream is handled by the timer interrupt routine */\r
- break;\r
- }\r
-\r
- Audio_Host_USBTask(&Microphone_Audio_Interface);\r
- USB_USBTask();\r
- }\r
-}\r
-\r
-/** ISR to handle the reloading of the PWM timer with the next sample. */\r
-ISR(TIMER0_COMPA_vect, ISR_BLOCK)\r
-{\r
- uint8_t PrevPipe = Pipe_GetCurrentPipe();\r
-\r
- /* Check that the USB bus is ready for the next sample to read */\r
- if (Audio_Host_IsSampleReceived(&Microphone_Audio_Interface))\r
- {\r
- /* Retrieve the signed 16-bit audio sample, convert to 8-bit */\r
- int8_t Sample_8Bit = (Audio_Host_ReadSample16(&Microphone_Audio_Interface) >> 8);\r
-\r
- /* Load the sample into the PWM timer channel */\r
- OCR3A = (Sample_8Bit ^ (1 << 7));\r
-\r
- uint8_t LEDMask = LEDS_NO_LEDS;\r
-\r
- /* Turn on LEDs as the sample amplitude increases */\r
- if (Sample_8Bit > 16)\r
- LEDMask = (LEDS_LED1 | LEDS_LED2 | LEDS_LED3 | LEDS_LED4);\r
- else if (Sample_8Bit > 8)\r
- LEDMask = (LEDS_LED1 | LEDS_LED2 | LEDS_LED3);\r
- else if (Sample_8Bit > 4)\r
- LEDMask = (LEDS_LED1 | LEDS_LED2);\r
- else if (Sample_8Bit > 2)\r
- LEDMask = (LEDS_LED1);\r
-\r
- LEDs_SetAllLEDs(LEDMask);\r
- }\r
- \r
- Pipe_SelectPipe(PrevPipe);\r
-}\r
-\r
-/** Configures the board hardware and chip peripherals for the demo's functionality. */\r
-void SetupHardware(void)\r
-{\r
- /* Disable watchdog if enabled by bootloader/fuses */\r
- MCUSR &= ~(1 << WDRF);\r
- wdt_disable();\r
-\r
- /* Disable clock division */\r
- clock_prescale_set(clock_div_1);\r
-\r
- /* Hardware Initialization */\r
- Serial_Init(9600, false);\r
- LEDs_Init();\r
- USB_Init();\r
-\r
- /* Create a stdio stream for the serial port for stdin and stdout */\r
- Serial_CreateStream(NULL);\r
-}\r
-\r
-/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and\r
- * starts the library USB task to begin the enumeration and USB management process.\r
- */\r
-void EVENT_USB_Host_DeviceAttached(void)\r
-{\r
- puts_P(PSTR("Device Attached.\r\n"));\r
- LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);\r
-}\r
-\r
-/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and\r
- * stops the library USB task management process.\r
- */\r
-void EVENT_USB_Host_DeviceUnattached(void)\r
-{\r
- puts_P(PSTR("\r\nDevice Unattached.\r\n"));\r
- LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);\r
-}\r
-\r
-/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully\r
- * enumerated by the host and is now ready to be used by the application.\r
- */\r
-void EVENT_USB_Host_DeviceEnumerationComplete(void)\r
-{\r
- LEDs_SetAllLEDs(LEDMASK_USB_READY);\r
-}\r
-\r
-/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */\r
-void EVENT_USB_Host_HostError(const uint8_t ErrorCode)\r
-{\r
- USB_Disable();\r
-\r
- printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"\r
- " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);\r
-\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
- for(;;);\r
-}\r
-\r
-/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while\r
- * enumerating an attached USB device.\r
- */\r
-void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,\r
- const uint8_t SubErrorCode)\r
-{\r
- printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"\r
- " -- Error Code %d\r\n"\r
- " -- Sub Error Code %d\r\n"\r
- " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);\r
-\r
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);\r
-}\r
-\r
+/*
+ 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 AudioInputHost demo. This file contains the main tasks of
+ * the demo and is responsible for the initial application hardware configuration.
+ */
+
+#include "AudioInputHost.h"
+
+/** LUFA Audio Class driver interface configuration and state information. This structure is
+ * passed to all Audio Class driver functions, so that multiple instances of the same class
+ * within a device can be differentiated from one another.
+ */
+USB_ClassInfo_Audio_Host_t Microphone_Audio_Interface =
+ {
+ .Config =
+ {
+ .DataINPipeNumber = 1,
+ },
+ };
+
+
+/** 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 Input Host Demo running.\r\n" ESC_FG_WHITE));
+
+ LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+ sei();
+
+ for (;;)
+ {
+ switch (USB_HostState)
+ {
+ case HOST_STATE_Addressed:
+ LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+
+ uint16_t ConfigDescriptorSize;
+ uint8_t ConfigDescriptorData[512];
+
+ if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
+ sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
+ {
+ puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ USB_HostState = HOST_STATE_WaitForDeviceRemoval;
+ break;
+ }
+
+ if (Audio_Host_ConfigurePipes(&Microphone_Audio_Interface,
+ ConfigDescriptorSize, ConfigDescriptorData) != AUDIO_ENUMERROR_NoError)
+ {
+ puts_P(PSTR("Attached Device Not a Valid Audio Input Device.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ USB_HostState = HOST_STATE_WaitForDeviceRemoval;
+ break;
+ }
+
+ if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
+ {
+ puts_P(PSTR("Error Setting Device Configuration.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ USB_HostState = HOST_STATE_WaitForDeviceRemoval;
+ break;
+ }
+
+ if (Audio_Host_StartStopStreaming(&Microphone_Audio_Interface, true) != HOST_SENDCONTROL_Successful)
+ {
+ puts_P(PSTR("Error Enabling Audio Stream.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ USB_HostState = HOST_STATE_WaitForDeviceRemoval;
+ break;
+ }
+
+ USB_Audio_SampleFreq_t SampleRate = AUDIO_SAMPLE_FREQ(48000);
+ if (Audio_Host_GetSetEndpointProperty(&Microphone_Audio_Interface, Microphone_Audio_Interface.Config.DataINPipeNumber,
+ AUDIO_REQ_SetCurrent, AUDIO_EPCONTROL_SamplingFreq,
+ sizeof(SampleRate), &SampleRate) != HOST_SENDCONTROL_Successful)
+ {
+ puts_P(PSTR("Error Setting Audio Sampling Frequency.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ 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
+
+ /* Set speaker as output */
+ DDRC |= (1 << 6);
+
+ /* PWM speaker timer initialization */
+ TCCR3A = ((1 << WGM30) | (1 << COM3A1) | (1 << COM3A0)); // Set on match, clear on TOP
+ TCCR3B = ((1 << WGM32) | (1 << CS30)); // Fast 8-Bit PWM, F_CPU speed
+
+ puts_P(PSTR("Audio Device Enumerated.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_READY);
+ USB_HostState = HOST_STATE_Configured;
+ break;
+ case HOST_STATE_Configured:
+ /* Do nothing - audio stream is handled by the timer interrupt routine */
+ break;
+ }
+
+ Audio_Host_USBTask(&Microphone_Audio_Interface);
+ USB_USBTask();
+ }
+}
+
+/** ISR to handle the reloading of the PWM timer with the next sample. */
+ISR(TIMER0_COMPA_vect, ISR_BLOCK)
+{
+ uint8_t PrevPipe = Pipe_GetCurrentPipe();
+
+ /* Check that the USB bus is ready for the next sample to read */
+ if (Audio_Host_IsSampleReceived(&Microphone_Audio_Interface))
+ {
+ /* Retrieve the signed 16-bit audio sample, convert to 8-bit */
+ int8_t Sample_8Bit = (Audio_Host_ReadSample16(&Microphone_Audio_Interface) >> 8);
+
+ /* Load the sample into the PWM timer channel */
+ OCR3A = (Sample_8Bit ^ (1 << 7));
+
+ uint8_t LEDMask = LEDS_NO_LEDS;
+
+ /* Turn on LEDs as the sample amplitude increases */
+ if (Sample_8Bit > 16)
+ LEDMask = (LEDS_LED1 | LEDS_LED2 | LEDS_LED3 | LEDS_LED4);
+ else if (Sample_8Bit > 8)
+ LEDMask = (LEDS_LED1 | LEDS_LED2 | LEDS_LED3);
+ else if (Sample_8Bit > 4)
+ LEDMask = (LEDS_LED1 | LEDS_LED2);
+ else if (Sample_8Bit > 2)
+ LEDMask = (LEDS_LED1);
+
+ LEDs_SetAllLEDs(LEDMask);
+ }
+
+ Pipe_SelectPipe(PrevPipe);
+}
+
+/** 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);
+ 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("Device Attached.\r\n"));
+ 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("\r\nDevice Unattached.\r\n"));
+ 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);
+}
+
projects / pub / USBasp.git / blobdiff