X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/59c4871f8011247a056f6ca2ca8aca89000e3841..55d7e1e65bccd6b4c44802cf971f39eb05e6e57a:/Projects/LEDNotifier/LEDNotifier.c diff --git a/Projects/LEDNotifier/LEDNotifier.c b/Projects/LEDNotifier/LEDNotifier.c index 5b5390024..da4ee9e5c 100644 --- a/Projects/LEDNotifier/LEDNotifier.c +++ b/Projects/LEDNotifier/LEDNotifier.c @@ -1,167 +1,167 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2010. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2010 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 LEDNotfier project. This file contains the main tasks of - * the demo and is responsible for the initial application hardware configuration. - */ - -#include "LEDNotifier.h" - -/** LUFA CDC Class driver interface configuration and state information. This structure is - * passed to all CDC Class driver functions, so that multiple instances of the same class - * within a device can be differentiated from one another. - */ -USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface = - { - .Config = - { - .ControlInterfaceNumber = 0, - - .DataINEndpointNumber = CDC_TX_EPNUM, - .DataINEndpointSize = CDC_TXRX_EPSIZE, - .DataINEndpointDoubleBank = false, - - .DataOUTEndpointNumber = CDC_RX_EPNUM, - .DataOUTEndpointSize = CDC_TXRX_EPSIZE, - .DataOUTEndpointDoubleBank = false, - - .NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM, - .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE, - .NotificationEndpointDoubleBank = false, - }, - }; - -/** Counter for the software PWM */ -static volatile uint8_t SoftPWM_Count; - -/** Duty cycle for the first software PWM channel */ -static volatile uint8_t SoftPWM_Channel1_Duty; - -/** Duty cycle for the second software PWM channel */ -static volatile uint8_t SoftPWM_Channel2_Duty; - -/** Duty cycle for the third software PWM channel */ -static volatile uint8_t SoftPWM_Channel3_Duty; - - -/** Interrupt handler for managing the software PWM channels for the LEDs */ -ISR(TIMER0_COMPA_vect, ISR_BLOCK) -{ - uint8_t LEDMask = LEDS_ALL_LEDS; - - if (++SoftPWM_Count == 0b00011111) - SoftPWM_Count = 0; - - if (SoftPWM_Count >= SoftPWM_Channel1_Duty) - LEDMask &= ~LEDS_LED1; - - if (SoftPWM_Count >= SoftPWM_Channel2_Duty) - LEDMask &= ~LEDS_LED2; - - if (SoftPWM_Count >= SoftPWM_Channel3_Duty) - LEDMask &= ~LEDS_LED3; - - LEDs_SetAllLEDs(LEDMask); -} - -/** Standard file stream for the CDC interface when set up, so that the virtual CDC COM port can be - * used like any regular character stream in the C APIs - */ -static FILE USBSerialStream; - -/** Main program entry point. This routine contains the overall program flow, including initial - * setup of all components and the main program loop. - */ -int main(void) -{ - SetupHardware(); - - /* Create a regular blocking character stream for the interface so that it can be used with the stdio.h functions */ - CDC_Device_CreateBlockingStream(&VirtualSerial_CDC_Interface, &USBSerialStream); - - sei(); - - for (;;) - { - /* Read in next LED colour command from the host */ - uint8_t ColorUpdate = fgetc(&USBSerialStream); - - /* Top 3 bits select the LED, bottom 5 control the brightness */ - uint8_t Channel = (ColorUpdate & 0b11100000); - uint8_t Duty = (ColorUpdate & 0b00011111); - - if (Channel & (1 << 5)) - SoftPWM_Channel1_Duty = Duty; - - if (Channel & (1 << 6)) - SoftPWM_Channel2_Duty = Duty; - - if (Channel & (1 << 7)) - SoftPWM_Channel3_Duty = Duty; - - CDC_Device_USBTask(&VirtualSerial_CDC_Interface); - 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 */ - LEDs_Init(); - USB_Init(); - - /* Timer Initialization */ - OCR0A = 100; - TCCR0A = (1 << WGM01); - TCCR0B = (1 << CS00); - TIMSK0 = (1 << OCIE0A); -} - -/** Event handler for the library USB Configuration Changed event. */ -void EVENT_USB_Device_ConfigurationChanged(void) -{ - CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface); -} - -/** Event handler for the library USB Unhandled Control Request event. */ -void EVENT_USB_Device_UnhandledControlRequest(void) -{ - CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface); -} +/* + LUFA Library + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2010 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 LEDNotfier project. This file contains the main tasks of + * the demo and is responsible for the initial application hardware configuration. + */ + +#include "LEDNotifier.h" + +/** LUFA CDC Class driver interface configuration and state information. This structure is + * passed to all CDC Class driver functions, so that multiple instances of the same class + * within a device can be differentiated from one another. + */ +USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface = + { + .Config = + { + .ControlInterfaceNumber = 0, + + .DataINEndpointNumber = CDC_TX_EPNUM, + .DataINEndpointSize = CDC_TXRX_EPSIZE, + .DataINEndpointDoubleBank = false, + + .DataOUTEndpointNumber = CDC_RX_EPNUM, + .DataOUTEndpointSize = CDC_TXRX_EPSIZE, + .DataOUTEndpointDoubleBank = false, + + .NotificationEndpointNumber = CDC_NOTIFICATION_EPNUM, + .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE, + .NotificationEndpointDoubleBank = false, + }, + }; + +/** Counter for the software PWM */ +static volatile uint8_t SoftPWM_Count; + +/** Duty cycle for the first software PWM channel */ +static volatile uint8_t SoftPWM_Channel1_Duty; + +/** Duty cycle for the second software PWM channel */ +static volatile uint8_t SoftPWM_Channel2_Duty; + +/** Duty cycle for the third software PWM channel */ +static volatile uint8_t SoftPWM_Channel3_Duty; + + +/** Interrupt handler for managing the software PWM channels for the LEDs */ +ISR(TIMER0_COMPA_vect, ISR_BLOCK) +{ + uint8_t LEDMask = LEDS_ALL_LEDS; + + if (++SoftPWM_Count == 0b00011111) + SoftPWM_Count = 0; + + if (SoftPWM_Count >= SoftPWM_Channel1_Duty) + LEDMask &= ~LEDS_LED1; + + if (SoftPWM_Count >= SoftPWM_Channel2_Duty) + LEDMask &= ~LEDS_LED2; + + if (SoftPWM_Count >= SoftPWM_Channel3_Duty) + LEDMask &= ~LEDS_LED3; + + LEDs_SetAllLEDs(LEDMask); +} + +/** Standard file stream for the CDC interface when set up, so that the virtual CDC COM port can be + * used like any regular character stream in the C APIs + */ +static FILE USBSerialStream; + +/** Main program entry point. This routine contains the overall program flow, including initial + * setup of all components and the main program loop. + */ +int main(void) +{ + SetupHardware(); + + /* Create a regular blocking character stream for the interface so that it can be used with the stdio.h functions */ + CDC_Device_CreateBlockingStream(&VirtualSerial_CDC_Interface, &USBSerialStream); + + sei(); + + for (;;) + { + /* Read in next LED colour command from the host */ + uint8_t ColorUpdate = fgetc(&USBSerialStream); + + /* Top 3 bits select the LED, bottom 5 control the brightness */ + uint8_t Channel = (ColorUpdate & 0b11100000); + uint8_t Duty = (ColorUpdate & 0b00011111); + + if (Channel & (1 << 5)) + SoftPWM_Channel1_Duty = Duty; + + if (Channel & (1 << 6)) + SoftPWM_Channel2_Duty = Duty; + + if (Channel & (1 << 7)) + SoftPWM_Channel3_Duty = Duty; + + CDC_Device_USBTask(&VirtualSerial_CDC_Interface); + 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 */ + LEDs_Init(); + USB_Init(); + + /* Timer Initialization */ + OCR0A = 100; + TCCR0A = (1 << WGM01); + TCCR0B = (1 << CS00); + TIMSK0 = (1 << OCIE0A); +} + +/** Event handler for the library USB Configuration Changed event. */ +void EVENT_USB_Device_ConfigurationChanged(void) +{ + CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface); +} + +/** Event handler for the library USB Unhandled Control Request event. */ +void EVENT_USB_Device_UnhandledControlRequest(void) +{ + CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface); +}