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/***************************************************************************
* Copyright (C) 02/2021 by Olaf Rempel *
* razzor@kopf-tisch.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; version 2 of the License, *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <avr/pgmspace.h>
#include <LUFA/Drivers/USB/USB.h>
#include "event.h"
#include "ledfade.h"
#include "pwm.h"
#include "usbcdc.h"
/* *********************************************************************** */
#define CDC_NOTIFICATION_EPADDR (ENDPOINT_DIR_IN | 2)
#define CDC_TX_EPADDR (ENDPOINT_DIR_IN | 3)
#define CDC_RX_EPADDR (ENDPOINT_DIR_OUT | 4)
#define CDC_NOTIFICATION_EPSIZE 8
#define CDC_TXRX_EPSIZE 16
typedef struct
{
USB_Descriptor_Configuration_Header_t Config;
// CDC Control Interface
USB_Descriptor_Interface_t CDC_CCI_Interface;
USB_CDC_Descriptor_FunctionalHeader_t CDC_Functional_Header;
USB_CDC_Descriptor_FunctionalACM_t CDC_Functional_ACM;
USB_CDC_Descriptor_FunctionalUnion_t CDC_Functional_Union;
USB_Descriptor_Endpoint_t CDC_NotificationEndpoint;
// CDC Data Interface
USB_Descriptor_Interface_t CDC_DCI_Interface;
USB_Descriptor_Endpoint_t CDC_DataOutEndpoint;
USB_Descriptor_Endpoint_t CDC_DataInEndpoint;
} USB_Descriptor_Configuration_t;
enum InterfaceDescriptors_t
{
INTERFACE_ID_CDC_CCI = 0,
INTERFACE_ID_CDC_DCI = 1,
};
enum StringDescriptors_t
{
STRING_ID_Language = 0,
STRING_ID_Manufacturer = 1,
STRING_ID_Product = 2,
};
/* *********************************************************************** */
const USB_Descriptor_Device_t PROGMEM DeviceDescriptor =
{
.Header = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
.USBSpecification = VERSION_BCD(1,1,0),
.Class = CDC_CSCP_CDCClass,
.SubClass = CDC_CSCP_NoSpecificSubclass,
.Protocol = CDC_CSCP_NoSpecificProtocol,
.Endpoint0Size = FIXED_CONTROL_ENDPOINT_SIZE,
.VendorID = 0x03EB,
.ProductID = 0x2044,
.ReleaseNumber = VERSION_BCD(0,0,1),
.ManufacturerStrIndex = STRING_ID_Manufacturer,
.ProductStrIndex = STRING_ID_Product,
.SerialNumStrIndex = USE_INTERNAL_SERIAL,
.NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS
};
const USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
{
.Config =
{
.Header = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},
.TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t),
.TotalInterfaces = 2,
.ConfigurationNumber = 1,
.ConfigurationStrIndex = NO_DESCRIPTOR,
.ConfigAttributes = (USB_CONFIG_ATTR_RESERVED | USB_CONFIG_ATTR_SELFPOWERED),
.MaxPowerConsumption = USB_CONFIG_POWER_MA(100)
},
.CDC_CCI_Interface =
{
.Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
.InterfaceNumber = INTERFACE_ID_CDC_CCI,
.AlternateSetting = 0,
.TotalEndpoints = 1,
.Class = CDC_CSCP_CDCClass,
.SubClass = CDC_CSCP_ACMSubclass,
.Protocol = CDC_CSCP_ATCommandProtocol,
.InterfaceStrIndex = NO_DESCRIPTOR
},
.CDC_Functional_Header =
{
.Header = {.Size = sizeof(USB_CDC_Descriptor_FunctionalHeader_t), .Type = CDC_DTYPE_CSInterface},
.Subtype = CDC_DSUBTYPE_CSInterface_Header,
.CDCSpecification = VERSION_BCD(1,1,0),
},
.CDC_Functional_ACM =
{
.Header = {.Size = sizeof(USB_CDC_Descriptor_FunctionalACM_t), .Type = CDC_DTYPE_CSInterface},
.Subtype = CDC_DSUBTYPE_CSInterface_ACM,
.Capabilities = 0x06,
},
.CDC_Functional_Union =
{
.Header = {.Size = sizeof(USB_CDC_Descriptor_FunctionalUnion_t), .Type = CDC_DTYPE_CSInterface},
.Subtype = CDC_DSUBTYPE_CSInterface_Union,
.MasterInterfaceNumber = INTERFACE_ID_CDC_CCI,
.SlaveInterfaceNumber = INTERFACE_ID_CDC_DCI,
},
.CDC_NotificationEndpoint =
{
.Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
.EndpointAddress = CDC_NOTIFICATION_EPADDR,
.Attributes = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
.EndpointSize = CDC_NOTIFICATION_EPSIZE,
.PollingIntervalMS = 0xFF
},
.CDC_DCI_Interface =
{
.Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
.InterfaceNumber = INTERFACE_ID_CDC_DCI,
.AlternateSetting = 0,
.TotalEndpoints = 2,
.Class = CDC_CSCP_CDCDataClass,
.SubClass = CDC_CSCP_NoDataSubclass,
.Protocol = CDC_CSCP_NoDataProtocol,
.InterfaceStrIndex = NO_DESCRIPTOR
},
.CDC_DataOutEndpoint =
{
.Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
.EndpointAddress = CDC_RX_EPADDR,
.Attributes = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
.EndpointSize = CDC_TXRX_EPSIZE,
.PollingIntervalMS = 0x05
},
.CDC_DataInEndpoint =
{
.Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
.EndpointAddress = CDC_TX_EPADDR,
.Attributes = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
.EndpointSize = CDC_TXRX_EPSIZE,
.PollingIntervalMS = 0x05
}
};
const USB_Descriptor_String_t PROGMEM LanguageString = USB_STRING_DESCRIPTOR_ARRAY(LANGUAGE_ID_ENG);
const USB_Descriptor_String_t PROGMEM ManufacturerString = USB_STRING_DESCRIPTOR(L"LUFA Library");
const USB_Descriptor_String_t PROGMEM ProductString = USB_STRING_DESCRIPTOR(L"LUFA CDC Demo");
uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
const uint16_t wIndex,
const void** const DescriptorAddress)
{
const uint8_t DescriptorType = (wValue >> 8);
const uint8_t DescriptorNumber = (wValue & 0xFF);
const void* Address = NULL;
uint16_t Size = NO_DESCRIPTOR;
switch (DescriptorType)
{
case DTYPE_Device:
Address = &DeviceDescriptor;
Size = sizeof(USB_Descriptor_Device_t);
break;
case DTYPE_Configuration:
Address = &ConfigurationDescriptor;
Size = sizeof(USB_Descriptor_Configuration_t);
break;
case DTYPE_String:
switch (DescriptorNumber)
{
case STRING_ID_Language:
Address = &LanguageString;
Size = pgm_read_byte(&LanguageString.Header.Size);
break;
case STRING_ID_Manufacturer:
Address = &ManufacturerString;
Size = pgm_read_byte(&ManufacturerString.Header.Size);
break;
case STRING_ID_Product:
Address = &ProductString;
Size = pgm_read_byte(&ProductString.Header.Size);
break;
}
break;
}
*DescriptorAddress = Address;
return Size;
}
USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
{
.Config =
{
.ControlInterfaceNumber = INTERFACE_ID_CDC_CCI,
.DataINEndpoint =
{
.Address = CDC_TX_EPADDR,
.Size = CDC_TXRX_EPSIZE,
.Banks = 1,
},
.DataOUTEndpoint =
{
.Address = CDC_RX_EPADDR,
.Size = CDC_TXRX_EPSIZE,
.Banks = 1,
},
.NotificationEndpoint =
{
.Address = CDC_NOTIFICATION_EPADDR,
.Size = CDC_NOTIFICATION_EPSIZE,
.Banks = 1,
},
},
};
/*
void EVENT_USB_Device_Connect(void)
{
}
void EVENT_USB_Device_Disconnect(void)
{
}
*/
void EVENT_USB_Device_ConfigurationChanged(void)
{
CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface);
}
void EVENT_USB_Device_ControlRequest(void)
{
CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);
}
/*
void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
{
}
void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
{
}
*/
void usbcdc_event_handler(event_entry_t * p_event)
{
if ((p_event->type == EVENT_TYPE_LEDFADE_STATUS) &&
(p_event->num == EVENT_NUM_LED_CH0)
)
{
if (USB_DeviceState == DEVICE_STATE_Configured)
{
CDC_Device_SendByte(&VirtualSerial_CDC_Interface, '!');
}
}
}
void usbcdc_task(void)
{
CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
USB_USBTask();
if (CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface))
{
uint8_t cmd = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
switch (cmd)
{
/* turn off fan */
case '0':
event_queue(EVENT_TYPE_PWM_VALUE, EVENT_NUM_PWM_CH2, 0x00);
break;
/* turn on fan, ~50% (12V) */
case '1':
event_queue(EVENT_TYPE_PWM_VALUE, EVENT_NUM_PWM_CH2, 0x58);
break;
/* turn on fan, ~75% (18V) */
case '2':
event_queue(EVENT_TYPE_PWM_VALUE, EVENT_NUM_PWM_CH2, 0xC0);
break;
/* turn on fan, 100% (24V) */
case '3':
event_queue(EVENT_TYPE_PWM_VALUE, EVENT_NUM_PWM_CH2, 0xFF);
break;
/* turn off LEDs */
case 'a':
event_queue(EVENT_TYPE_LEDFADE_VALUE, EVENT_NUM_LED_CH0, 0);
break;
/* turn on LEDs */
case 'b':
event_queue(EVENT_TYPE_LEDFADE_VALUE, EVENT_NUM_LED_CH0, 0x50);
break;
/* turn on LEDs */
case 'c':
event_queue(EVENT_TYPE_LEDFADE_VALUE, EVENT_NUM_LED_CH0, 0x70);
break;
/* turn on LEDs, 100% */
case 'd':
event_queue(EVENT_TYPE_LEDFADE_VALUE, EVENT_NUM_LED_CH0, 0x80);
break;
}
}
}
void usbcdc_init(void)
{
USB_Init();
}