312 lines
11 KiB
C
312 lines
11 KiB
C
/***************************************************************************
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* Copyright (C) 02/2021 by Olaf Rempel *
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* razzor@kopf-tisch.de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; version 2 of the License, *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <avr/pgmspace.h>
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#include <LUFA/Drivers/USB/USB.h>
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#include "event.h"
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#include "ledfade.h"
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#include "pwm.h"
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#include "usbcdc.h"
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/* *********************************************************************** */
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#define CDC_NOTIFICATION_EPADDR (ENDPOINT_DIR_IN | 2)
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#define CDC_TX_EPADDR (ENDPOINT_DIR_IN | 3)
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#define CDC_RX_EPADDR (ENDPOINT_DIR_OUT | 4)
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#define CDC_NOTIFICATION_EPSIZE 8
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#define CDC_TXRX_EPSIZE 16
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typedef struct
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{
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USB_Descriptor_Configuration_Header_t Config;
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// CDC Control Interface
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USB_Descriptor_Interface_t CDC_CCI_Interface;
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USB_CDC_Descriptor_FunctionalHeader_t CDC_Functional_Header;
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USB_CDC_Descriptor_FunctionalACM_t CDC_Functional_ACM;
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USB_CDC_Descriptor_FunctionalUnion_t CDC_Functional_Union;
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USB_Descriptor_Endpoint_t CDC_NotificationEndpoint;
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// CDC Data Interface
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USB_Descriptor_Interface_t CDC_DCI_Interface;
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USB_Descriptor_Endpoint_t CDC_DataOutEndpoint;
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USB_Descriptor_Endpoint_t CDC_DataInEndpoint;
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} USB_Descriptor_Configuration_t;
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enum InterfaceDescriptors_t
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{
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INTERFACE_ID_CDC_CCI = 0,
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INTERFACE_ID_CDC_DCI = 1,
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};
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enum StringDescriptors_t
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{
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STRING_ID_Language = 0,
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STRING_ID_Manufacturer = 1,
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STRING_ID_Product = 2,
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};
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/* *********************************************************************** */
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const USB_Descriptor_Device_t PROGMEM DeviceDescriptor =
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{
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.Header = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
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.USBSpecification = VERSION_BCD(1,1,0),
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.Class = CDC_CSCP_CDCClass,
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.SubClass = CDC_CSCP_NoSpecificSubclass,
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.Protocol = CDC_CSCP_NoSpecificProtocol,
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.Endpoint0Size = FIXED_CONTROL_ENDPOINT_SIZE,
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.VendorID = 0x03EB,
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.ProductID = 0x2044,
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.ReleaseNumber = VERSION_BCD(0,0,1),
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.ManufacturerStrIndex = STRING_ID_Manufacturer,
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.ProductStrIndex = STRING_ID_Product,
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.SerialNumStrIndex = USE_INTERNAL_SERIAL,
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.NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS
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};
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const USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
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{
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.Config =
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{
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.Header = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},
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.TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t),
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.TotalInterfaces = 2,
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.ConfigurationNumber = 1,
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.ConfigurationStrIndex = NO_DESCRIPTOR,
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.ConfigAttributes = (USB_CONFIG_ATTR_RESERVED | USB_CONFIG_ATTR_SELFPOWERED),
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.MaxPowerConsumption = USB_CONFIG_POWER_MA(100)
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},
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.CDC_CCI_Interface =
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{
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.Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
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.InterfaceNumber = INTERFACE_ID_CDC_CCI,
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.AlternateSetting = 0,
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.TotalEndpoints = 1,
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.Class = CDC_CSCP_CDCClass,
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.SubClass = CDC_CSCP_ACMSubclass,
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.Protocol = CDC_CSCP_ATCommandProtocol,
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.InterfaceStrIndex = NO_DESCRIPTOR
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},
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.CDC_Functional_Header =
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{
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.Header = {.Size = sizeof(USB_CDC_Descriptor_FunctionalHeader_t), .Type = CDC_DTYPE_CSInterface},
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.Subtype = CDC_DSUBTYPE_CSInterface_Header,
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.CDCSpecification = VERSION_BCD(1,1,0),
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},
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.CDC_Functional_ACM =
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{
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.Header = {.Size = sizeof(USB_CDC_Descriptor_FunctionalACM_t), .Type = CDC_DTYPE_CSInterface},
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.Subtype = CDC_DSUBTYPE_CSInterface_ACM,
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.Capabilities = 0x06,
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},
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.CDC_Functional_Union =
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{
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.Header = {.Size = sizeof(USB_CDC_Descriptor_FunctionalUnion_t), .Type = CDC_DTYPE_CSInterface},
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.Subtype = CDC_DSUBTYPE_CSInterface_Union,
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.MasterInterfaceNumber = INTERFACE_ID_CDC_CCI,
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.SlaveInterfaceNumber = INTERFACE_ID_CDC_DCI,
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},
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.CDC_NotificationEndpoint =
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{
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.Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
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.EndpointAddress = CDC_NOTIFICATION_EPADDR,
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.Attributes = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
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.EndpointSize = CDC_NOTIFICATION_EPSIZE,
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.PollingIntervalMS = 0xFF
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},
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.CDC_DCI_Interface =
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{
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.Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
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.InterfaceNumber = INTERFACE_ID_CDC_DCI,
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.AlternateSetting = 0,
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.TotalEndpoints = 2,
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.Class = CDC_CSCP_CDCDataClass,
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.SubClass = CDC_CSCP_NoDataSubclass,
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.Protocol = CDC_CSCP_NoDataProtocol,
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.InterfaceStrIndex = NO_DESCRIPTOR
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},
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.CDC_DataOutEndpoint =
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{
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.Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
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.EndpointAddress = CDC_RX_EPADDR,
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.Attributes = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
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.EndpointSize = CDC_TXRX_EPSIZE,
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.PollingIntervalMS = 0x05
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},
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.CDC_DataInEndpoint =
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{
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.Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
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.EndpointAddress = CDC_TX_EPADDR,
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.Attributes = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
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.EndpointSize = CDC_TXRX_EPSIZE,
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.PollingIntervalMS = 0x05
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}
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};
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const USB_Descriptor_String_t PROGMEM LanguageString = USB_STRING_DESCRIPTOR_ARRAY(LANGUAGE_ID_ENG);
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const USB_Descriptor_String_t PROGMEM ManufacturerString = USB_STRING_DESCRIPTOR(L"LUFA Library");
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const USB_Descriptor_String_t PROGMEM ProductString = USB_STRING_DESCRIPTOR(L"LUFA CDC Demo");
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uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
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const uint16_t wIndex,
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const void** const DescriptorAddress)
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{
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const uint8_t DescriptorType = (wValue >> 8);
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const uint8_t DescriptorNumber = (wValue & 0xFF);
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const void* Address = NULL;
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uint16_t Size = NO_DESCRIPTOR;
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switch (DescriptorType)
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{
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case DTYPE_Device:
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Address = &DeviceDescriptor;
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Size = sizeof(USB_Descriptor_Device_t);
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break;
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case DTYPE_Configuration:
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Address = &ConfigurationDescriptor;
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Size = sizeof(USB_Descriptor_Configuration_t);
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break;
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case DTYPE_String:
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switch (DescriptorNumber)
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{
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case STRING_ID_Language:
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Address = &LanguageString;
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Size = pgm_read_byte(&LanguageString.Header.Size);
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break;
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case STRING_ID_Manufacturer:
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Address = &ManufacturerString;
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Size = pgm_read_byte(&ManufacturerString.Header.Size);
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break;
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case STRING_ID_Product:
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Address = &ProductString;
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Size = pgm_read_byte(&ProductString.Header.Size);
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break;
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}
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break;
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}
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*DescriptorAddress = Address;
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return Size;
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}
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USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
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{
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.Config =
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{
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.ControlInterfaceNumber = INTERFACE_ID_CDC_CCI,
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.DataINEndpoint =
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{
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.Address = CDC_TX_EPADDR,
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.Size = CDC_TXRX_EPSIZE,
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.Banks = 1,
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},
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.DataOUTEndpoint =
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{
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.Address = CDC_RX_EPADDR,
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.Size = CDC_TXRX_EPSIZE,
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.Banks = 1,
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},
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.NotificationEndpoint =
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{
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.Address = CDC_NOTIFICATION_EPADDR,
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.Size = CDC_NOTIFICATION_EPSIZE,
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.Banks = 1,
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},
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},
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};
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/*
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void EVENT_USB_Device_Connect(void)
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{
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}
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void EVENT_USB_Device_Disconnect(void)
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{
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}
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*/
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void EVENT_USB_Device_ConfigurationChanged(void)
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{
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CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface);
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}
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void EVENT_USB_Device_ControlRequest(void)
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{
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CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);
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}
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/*
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void EVENT_CDC_Device_LineEncodingChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
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{
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}
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void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo)
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{
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}
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*/
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void usbcdc_event_handler(event_entry_t * p_event)
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{
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if ((p_event->type == EVENT_TYPE_LEDFADE_STATUS) &&
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(p_event->num == EVENT_NUM_LED_CH0)
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)
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{
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if (USB_DeviceState == DEVICE_STATE_Configured)
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{
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CDC_Device_SendByte(&VirtualSerial_CDC_Interface, '!');
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}
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}
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}
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void usbcdc_task(void)
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{
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CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
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USB_USBTask();
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if (CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface))
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{
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uint8_t cmd = CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);
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uint16_t value = 0;
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if ((cmd >= '1') && (cmd <= '8'))
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{
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value = ((cmd - '0') * 0x2000) -1;
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}
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event_queue(EVENT_TYPE_PWM_VALUE,
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EVENT_NUM_PWM_CH2,
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value);
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}
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}
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void usbcdc_init(void)
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{
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USB_Init();
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}
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