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Diffstat (limited to 'lib/lufa/Demos/Device/LowLevel/Keyboard/Descriptors.c')
| -rw-r--r-- | lib/lufa/Demos/Device/LowLevel/Keyboard/Descriptors.c | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/lib/lufa/Demos/Device/LowLevel/Keyboard/Descriptors.c b/lib/lufa/Demos/Device/LowLevel/Keyboard/Descriptors.c new file mode 100644 index 000000000..d0e5bc445 --- /dev/null +++ b/lib/lufa/Demos/Device/LowLevel/Keyboard/Descriptors.c | |||
| @@ -0,0 +1,255 @@ | |||
| 1 | /* | ||
| 2 | LUFA Library | ||
| 3 | Copyright (C) Dean Camera, 2017. | ||
| 4 | |||
| 5 | dean [at] fourwalledcubicle [dot] com | ||
| 6 | www.lufa-lib.org | ||
| 7 | */ | ||
| 8 | |||
| 9 | /* | ||
| 10 | Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) | ||
| 11 | Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com) | ||
| 12 | |||
| 13 | Permission to use, copy, modify, distribute, and sell this | ||
| 14 | software and its documentation for any purpose is hereby granted | ||
| 15 | without fee, provided that the above copyright notice appear in | ||
| 16 | all copies and that both that the copyright notice and this | ||
| 17 | permission notice and warranty disclaimer appear in supporting | ||
| 18 | documentation, and that the name of the author not be used in | ||
| 19 | advertising or publicity pertaining to distribution of the | ||
| 20 | software without specific, written prior permission. | ||
| 21 | |||
| 22 | The author disclaims all warranties with regard to this | ||
| 23 | software, including all implied warranties of merchantability | ||
| 24 | and fitness. In no event shall the author be liable for any | ||
| 25 | special, indirect or consequential damages or any damages | ||
| 26 | whatsoever resulting from loss of use, data or profits, whether | ||
| 27 | in an action of contract, negligence or other tortious action, | ||
| 28 | arising out of or in connection with the use or performance of | ||
| 29 | this software. | ||
| 30 | */ | ||
| 31 | |||
| 32 | /** \file | ||
| 33 | * | ||
| 34 | * USB Device Descriptors, for library use when in USB device mode. Descriptors are special | ||
| 35 | * computer-readable structures which the host requests upon device enumeration, to determine | ||
| 36 | * the device's capabilities and functions. | ||
| 37 | */ | ||
| 38 | |||
| 39 | #include "Descriptors.h" | ||
| 40 | |||
| 41 | /** HID class report descriptor. This is a special descriptor constructed with values from the | ||
| 42 | * USBIF HID class specification to describe the reports and capabilities of the HID device. This | ||
| 43 | * descriptor is parsed by the host and its contents used to determine what data (and in what encoding) | ||
| 44 | * the device will send, and what it may be sent back from the host. Refer to the HID specification for | ||
| 45 | * more details on HID report descriptors. | ||
| 46 | */ | ||
| 47 | const USB_Descriptor_HIDReport_Datatype_t PROGMEM KeyboardReport[] = | ||
| 48 | { | ||
| 49 | HID_RI_USAGE_PAGE(8, 0x01), /* Generic Desktop */ | ||
| 50 | HID_RI_USAGE(8, 0x06), /* Keyboard */ | ||
| 51 | HID_RI_COLLECTION(8, 0x01), /* Application */ | ||
| 52 | HID_RI_USAGE_PAGE(8, 0x07), /* Key Codes */ | ||
| 53 | HID_RI_USAGE_MINIMUM(8, 0xE0), /* Keyboard Left Control */ | ||
| 54 | HID_RI_USAGE_MAXIMUM(8, 0xE7), /* Keyboard Right GUI */ | ||
| 55 | HID_RI_LOGICAL_MINIMUM(8, 0x00), | ||
| 56 | HID_RI_LOGICAL_MAXIMUM(8, 0x01), | ||
| 57 | HID_RI_REPORT_SIZE(8, 0x01), | ||
| 58 | HID_RI_REPORT_COUNT(8, 0x08), | ||
| 59 | HID_RI_INPUT(8, HID_IOF_DATA | HID_IOF_VARIABLE | HID_IOF_ABSOLUTE), | ||
| 60 | HID_RI_REPORT_COUNT(8, 0x01), | ||
| 61 | HID_RI_REPORT_SIZE(8, 0x08), | ||
| 62 | HID_RI_INPUT(8, HID_IOF_CONSTANT), | ||
| 63 | HID_RI_USAGE_PAGE(8, 0x08), /* LEDs */ | ||
| 64 | HID_RI_USAGE_MINIMUM(8, 0x01), /* Num Lock */ | ||
| 65 | HID_RI_USAGE_MAXIMUM(8, 0x05), /* Kana */ | ||
| 66 | HID_RI_REPORT_COUNT(8, 0x05), | ||
| 67 | HID_RI_REPORT_SIZE(8, 0x01), | ||
| 68 | HID_RI_OUTPUT(8, HID_IOF_DATA | HID_IOF_VARIABLE | HID_IOF_ABSOLUTE | HID_IOF_NON_VOLATILE), | ||
| 69 | HID_RI_REPORT_COUNT(8, 0x01), | ||
| 70 | HID_RI_REPORT_SIZE(8, 0x03), | ||
| 71 | HID_RI_OUTPUT(8, HID_IOF_CONSTANT), | ||
| 72 | HID_RI_LOGICAL_MINIMUM(8, 0x00), | ||
| 73 | HID_RI_LOGICAL_MAXIMUM(8, 0x65), | ||
| 74 | HID_RI_USAGE_PAGE(8, 0x07), /* Keyboard */ | ||
| 75 | HID_RI_USAGE_MINIMUM(8, 0x00), /* Reserved (no event indicated) */ | ||
| 76 | HID_RI_USAGE_MAXIMUM(8, 0x65), /* Keyboard Application */ | ||
| 77 | HID_RI_REPORT_COUNT(8, 0x06), | ||
| 78 | HID_RI_REPORT_SIZE(8, 0x08), | ||
| 79 | HID_RI_INPUT(8, HID_IOF_DATA | HID_IOF_ARRAY | HID_IOF_ABSOLUTE), | ||
| 80 | HID_RI_END_COLLECTION(0), | ||
| 81 | }; | ||
| 82 | |||
| 83 | /** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall | ||
| 84 | * device characteristics, including the supported USB version, control endpoint size and the | ||
| 85 | * number of device configurations. The descriptor is read out by the USB host when the enumeration | ||
| 86 | * process begins. | ||
| 87 | */ | ||
| 88 | const USB_Descriptor_Device_t PROGMEM DeviceDescriptor = | ||
| 89 | { | ||
| 90 | .Header = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device}, | ||
| 91 | |||
| 92 | .USBSpecification = VERSION_BCD(1,1,0), | ||
| 93 | .Class = USB_CSCP_NoDeviceClass, | ||
| 94 | .SubClass = USB_CSCP_NoDeviceSubclass, | ||
| 95 | .Protocol = USB_CSCP_NoDeviceProtocol, | ||
| 96 | |||
| 97 | .Endpoint0Size = FIXED_CONTROL_ENDPOINT_SIZE, | ||
| 98 | |||
| 99 | .VendorID = 0x03EB, | ||
| 100 | .ProductID = 0x2042, | ||
| 101 | .ReleaseNumber = VERSION_BCD(0,0,1), | ||
| 102 | |||
| 103 | .ManufacturerStrIndex = STRING_ID_Manufacturer, | ||
| 104 | .ProductStrIndex = STRING_ID_Product, | ||
| 105 | .SerialNumStrIndex = NO_DESCRIPTOR, | ||
| 106 | |||
| 107 | .NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS | ||
| 108 | }; | ||
| 109 | |||
| 110 | /** Configuration descriptor structure. This descriptor, located in FLASH memory, describes the usage | ||
| 111 | * of the device in one of its supported configurations, including information about any device interfaces | ||
| 112 | * and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting | ||
| 113 | * a configuration so that the host may correctly communicate with the USB device. | ||
| 114 | */ | ||
| 115 | const USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor = | ||
| 116 | { | ||
| 117 | .Config = | ||
| 118 | { | ||
| 119 | .Header = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration}, | ||
| 120 | |||
| 121 | .TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t), | ||
| 122 | .TotalInterfaces = 1, | ||
| 123 | |||
| 124 | .ConfigurationNumber = 1, | ||
| 125 | .ConfigurationStrIndex = NO_DESCRIPTOR, | ||
| 126 | |||
| 127 | .ConfigAttributes = (USB_CONFIG_ATTR_RESERVED | USB_CONFIG_ATTR_SELFPOWERED), | ||
| 128 | |||
| 129 | .MaxPowerConsumption = USB_CONFIG_POWER_MA(100) | ||
| 130 | }, | ||
| 131 | |||
| 132 | .HID_Interface = | ||
| 133 | { | ||
| 134 | .Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface}, | ||
| 135 | |||
| 136 | .InterfaceNumber = INTERFACE_ID_Keyboard, | ||
| 137 | .AlternateSetting = 0x00, | ||
| 138 | |||
| 139 | .TotalEndpoints = 2, | ||
| 140 | |||
| 141 | .Class = HID_CSCP_HIDClass, | ||
| 142 | .SubClass = HID_CSCP_BootSubclass, | ||
| 143 | .Protocol = HID_CSCP_KeyboardBootProtocol, | ||
| 144 | |||
| 145 | .InterfaceStrIndex = NO_DESCRIPTOR | ||
| 146 | }, | ||
| 147 | |||
| 148 | .HID_KeyboardHID = | ||
| 149 | { | ||
| 150 | .Header = {.Size = sizeof(USB_HID_Descriptor_HID_t), .Type = HID_DTYPE_HID}, | ||
| 151 | |||
| 152 | .HIDSpec = VERSION_BCD(1,1,1), | ||
| 153 | .CountryCode = 0x00, | ||
| 154 | .TotalReportDescriptors = 1, | ||
| 155 | .HIDReportType = HID_DTYPE_Report, | ||
| 156 | .HIDReportLength = sizeof(KeyboardReport) | ||
| 157 | }, | ||
| 158 | |||
| 159 | .HID_ReportINEndpoint = | ||
| 160 | { | ||
| 161 | .Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint}, | ||
| 162 | |||
| 163 | .EndpointAddress = KEYBOARD_IN_EPADDR, | ||
| 164 | .Attributes = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA), | ||
| 165 | .EndpointSize = KEYBOARD_EPSIZE, | ||
| 166 | .PollingIntervalMS = 0x05 | ||
| 167 | }, | ||
| 168 | |||
| 169 | .HID_ReportOUTEndpoint = | ||
| 170 | { | ||
| 171 | .Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint}, | ||
| 172 | |||
| 173 | .EndpointAddress = KEYBOARD_OUT_EPADDR, | ||
| 174 | .Attributes = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA), | ||
| 175 | .EndpointSize = KEYBOARD_EPSIZE, | ||
| 176 | .PollingIntervalMS = 0x05 | ||
| 177 | } | ||
| 178 | }; | ||
| 179 | |||
| 180 | /** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests | ||
| 181 | * the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate | ||
| 182 | * via the language ID table available at USB.org what languages the device supports for its string descriptors. | ||
| 183 | */ | ||
| 184 | const USB_Descriptor_String_t PROGMEM LanguageString = USB_STRING_DESCRIPTOR_ARRAY(LANGUAGE_ID_ENG); | ||
| 185 | |||
| 186 | /** Manufacturer descriptor string. This is a Unicode string containing the manufacturer's details in human readable | ||
| 187 | * form, and is read out upon request by the host when the appropriate string ID is requested, listed in the Device | ||
| 188 | * Descriptor. | ||
| 189 | */ | ||
| 190 | const USB_Descriptor_String_t PROGMEM ManufacturerString = USB_STRING_DESCRIPTOR(L"Dean Camera"); | ||
| 191 | |||
| 192 | /** Product descriptor string. This is a Unicode string containing the product's details in human readable form, | ||
| 193 | * and is read out upon request by the host when the appropriate string ID is requested, listed in the Device | ||
| 194 | * Descriptor. | ||
| 195 | */ | ||
| 196 | const USB_Descriptor_String_t PROGMEM ProductString = USB_STRING_DESCRIPTOR(L"LUFA Keyboard Demo"); | ||
| 197 | |||
| 198 | /** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors" | ||
| 199 | * documentation) by the application code so that the address and size of a requested descriptor can be given | ||
| 200 | * to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function | ||
| 201 | * is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the | ||
| 202 | * USB host. | ||
| 203 | */ | ||
| 204 | uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, | ||
| 205 | const uint16_t wIndex, | ||
| 206 | const void** const DescriptorAddress) | ||
| 207 | { | ||
| 208 | const uint8_t DescriptorType = (wValue >> 8); | ||
| 209 | const uint8_t DescriptorNumber = (wValue & 0xFF); | ||
| 210 | |||
| 211 | const void* Address = NULL; | ||
| 212 | uint16_t Size = NO_DESCRIPTOR; | ||
| 213 | |||
| 214 | switch (DescriptorType) | ||
| 215 | { | ||
| 216 | case DTYPE_Device: | ||
| 217 | Address = &DeviceDescriptor; | ||
| 218 | Size = sizeof(USB_Descriptor_Device_t); | ||
| 219 | break; | ||
| 220 | case DTYPE_Configuration: | ||
| 221 | Address = &ConfigurationDescriptor; | ||
| 222 | Size = sizeof(USB_Descriptor_Configuration_t); | ||
| 223 | break; | ||
| 224 | case DTYPE_String: | ||
| 225 | switch (DescriptorNumber) | ||
| 226 | { | ||
| 227 | case STRING_ID_Language: | ||
| 228 | Address = &LanguageString; | ||
| 229 | Size = pgm_read_byte(&LanguageString.Header.Size); | ||
| 230 | break; | ||
| 231 | case STRING_ID_Manufacturer: | ||
| 232 | Address = &ManufacturerString; | ||
| 233 | Size = pgm_read_byte(&ManufacturerString.Header.Size); | ||
| 234 | break; | ||
| 235 | case STRING_ID_Product: | ||
| 236 | Address = &ProductString; | ||
| 237 | Size = pgm_read_byte(&ProductString.Header.Size); | ||
| 238 | break; | ||
| 239 | } | ||
| 240 | |||
| 241 | break; | ||
| 242 | case HID_DTYPE_HID: | ||
| 243 | Address = &ConfigurationDescriptor.HID_KeyboardHID; | ||
| 244 | Size = sizeof(USB_HID_Descriptor_HID_t); | ||
| 245 | break; | ||
| 246 | case HID_DTYPE_Report: | ||
| 247 | Address = &KeyboardReport; | ||
| 248 | Size = sizeof(KeyboardReport); | ||
| 249 | break; | ||
| 250 | } | ||
| 251 | |||
| 252 | *DescriptorAddress = Address; | ||
| 253 | return Size; | ||
| 254 | } | ||
| 255 | |||
