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Diffstat (limited to 'Bootloaders/HID/Descriptors.c')
| -rw-r--r-- | Bootloaders/HID/Descriptors.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/Bootloaders/HID/Descriptors.c b/Bootloaders/HID/Descriptors.c new file mode 100644 index 000000000..0a63b7925 --- /dev/null +++ b/Bootloaders/HID/Descriptors.c @@ -0,0 +1,186 @@ +/*
+ 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
+ *
+ * USB Device Descriptors, for library use when in USB device mode. Descriptors are special
+ * computer-readable structures which the host requests upon device enumeration, to determine
+ * the device's capabilities and functions.
+ */
+
+#include "Descriptors.h"
+
+/** HID class report descriptor. This is a special descriptor constructed with values from the
+ * USBIF HID class specification to describe the reports and capabilities of the HID device. This
+ * descriptor is parsed by the host and its contents used to determine what data (and in what encoding)
+ * the device will send, and what it may be sent back from the host. Refer to the HID specification for
+ * more details on HID report descriptors.
+ */
+USB_Descriptor_HIDReport_Datatype_t HIDReport[] =
+{
+ HID_RI_USAGE_PAGE(16, 0xFF00), /* Vendor Page 1 */
+ HID_RI_USAGE(8, 0x01), /* Vendor Usage 1 */
+ HID_RI_COLLECTION(8, 0x01), /* Vendor Usage 1 */
+ HID_RI_USAGE(8, 0x03), /* Vendor Usage 3 */
+ HID_RI_LOGICAL_MINIMUM(8, 0x00),
+ HID_RI_LOGICAL_MAXIMUM(8, 0xFF),
+ HID_RI_REPORT_SIZE(8, 0x08),
+ HID_RI_REPORT_COUNT(16, (sizeof(uint16_t) + SPM_PAGESIZE)),
+ HID_RI_OUTPUT(8, HID_IOF_DATA | HID_IOF_VARIABLE | HID_IOF_ABSOLUTE | HID_IOF_NON_VOLATILE),
+ HID_RI_END_COLLECTION(0),
+};
+
+/** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall
+ * device characteristics, including the supported USB version, control endpoint size and the
+ * number of device configurations. The descriptor is read out by the USB host when the enumeration
+ * process begins.
+ */
+USB_Descriptor_Device_t DeviceDescriptor =
+{
+ .Header = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
+
+ .USBSpecification = VERSION_BCD(01.10),
+ .Class = USB_CSCP_NoDeviceClass,
+ .SubClass = USB_CSCP_NoDeviceSubclass,
+ .Protocol = USB_CSCP_NoDeviceProtocol,
+
+ .Endpoint0Size = FIXED_CONTROL_ENDPOINT_SIZE,
+
+ .VendorID = 0x03EB,
+ .ProductID = 0x2067,
+ .ReleaseNumber = VERSION_BCD(00.01),
+
+ .ManufacturerStrIndex = NO_DESCRIPTOR,
+ .ProductStrIndex = NO_DESCRIPTOR,
+ .SerialNumStrIndex = NO_DESCRIPTOR,
+
+ .NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS
+};
+
+/** Configuration descriptor structure. This descriptor, located in FLASH memory, describes the usage
+ * of the device in one of its supported configurations, including information about any device interfaces
+ * and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting
+ * a configuration so that the host may correctly communicate with the USB device.
+ */
+USB_Descriptor_Configuration_t ConfigurationDescriptor =
+{
+ .Config =
+ {
+ .Header = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},
+
+ .TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t),
+ .TotalInterfaces = 1,
+
+ .ConfigurationNumber = 1,
+ .ConfigurationStrIndex = NO_DESCRIPTOR,
+
+ .ConfigAttributes = USB_CONFIG_ATTR_BUSPOWERED,
+
+ .MaxPowerConsumption = USB_CONFIG_POWER_MA(100)
+ },
+
+ .HID_Interface =
+ {
+ .Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
+
+ .InterfaceNumber = 0x00,
+ .AlternateSetting = 0x00,
+
+ .TotalEndpoints = 1,
+
+ .Class = HID_CSCP_HIDClass,
+ .SubClass = HID_CSCP_NonBootSubclass,
+ .Protocol = HID_CSCP_NonBootProtocol,
+
+ .InterfaceStrIndex = NO_DESCRIPTOR
+ },
+
+ .HID_VendorHID =
+ {
+ .Header = {.Size = sizeof(USB_HID_Descriptor_HID_t), .Type = HID_DTYPE_HID},
+
+ .HIDSpec = VERSION_BCD(01.11),
+ .CountryCode = 0x00,
+ .TotalReportDescriptors = 1,
+ .HIDReportType = HID_DTYPE_Report,
+ .HIDReportLength = sizeof(HIDReport)
+ },
+
+ .HID_ReportINEndpoint =
+ {
+ .Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
+
+ .EndpointAddress = (ENDPOINT_DESCRIPTOR_DIR_IN | HID_IN_EPNUM),
+ .Attributes = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
+ .EndpointSize = HID_IN_EPSIZE,
+ .PollingIntervalMS = 0x01
+ },
+};
+
+/** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"
+ * documentation) by the application code so that the address and size of a requested descriptor can be given
+ * to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function
+ * is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the
+ * USB host.
+ */
+uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
+ const uint8_t wIndex,
+ const void** const DescriptorAddress)
+{
+ const uint8_t DescriptorType = (wValue >> 8);
+
+ const void* Address = NULL;
+ uint16_t Size = NO_DESCRIPTOR;
+
+ /* If/Else If chain compiles slightly smaller than a switch case */
+ if (DescriptorType == DTYPE_Device)
+ {
+ Address = &DeviceDescriptor;
+ Size = sizeof(USB_Descriptor_Device_t);
+ }
+ else if (DescriptorType == DTYPE_Configuration)
+ {
+ Address = &ConfigurationDescriptor;
+ Size = sizeof(USB_Descriptor_Configuration_t);
+ }
+ else if (DescriptorType == HID_DTYPE_HID)
+ {
+ Address = &ConfigurationDescriptor.HID_VendorHID;
+ Size = sizeof(USB_HID_Descriptor_HID_t);
+ }
+ else
+ {
+ Address = &HIDReport;
+ Size = sizeof(HIDReport);
+ }
+
+ *DescriptorAddress = Address;
+ return Size;
+}
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