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authorJack Humbert <jack.humb@gmail.com>2017-07-07 15:33:29 -0400
committerGitHub <noreply@github.com>2017-07-07 15:33:29 -0400
commit9de443cbf10ac41bc15762c9c83f138f51dd3b9a (patch)
treed8ddcb428e0b7d9773a1e52c42b60bdca2658beb /lib/lufa/Bootloaders/MassStorage/Descriptors.c
parent88b3d051b21cb1ddacc6353c5d59b19f03f3a242 (diff)
parent1c26468ad5a0701e244c99cbcbc547c93b75d515 (diff)
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Merge pull request #1471 from qmk/lufa_lib
Update LUFA and move it to /lib/lufa
Diffstat (limited to 'lib/lufa/Bootloaders/MassStorage/Descriptors.c')
-rw-r--r--lib/lufa/Bootloaders/MassStorage/Descriptors.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/lib/lufa/Bootloaders/MassStorage/Descriptors.c b/lib/lufa/Bootloaders/MassStorage/Descriptors.c
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+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2017.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2017 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 disclaims 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"
+
+
+/** Device descriptor structure. This descriptor, located in SRAM 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.
+ */
+const USB_Descriptor_Device_t DeviceDescriptor =
+{
+ .Header = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
+
+ .USBSpecification = VERSION_BCD(1,1,0),
+ .Class = USB_CSCP_NoDeviceClass,
+ .SubClass = USB_CSCP_NoDeviceSubclass,
+ .Protocol = USB_CSCP_NoDeviceProtocol,
+
+ .Endpoint0Size = FIXED_CONTROL_ENDPOINT_SIZE,
+
+ .VendorID = 0x03EB,
+ .ProductID = 0x2045,
+ .ReleaseNumber = VERSION_BCD(0,0,1),
+
+ .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.
+ */
+const 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_RESERVED,
+
+ .MaxPowerConsumption = USB_CONFIG_POWER_MA(100)
+ },
+
+ .MS_Interface =
+ {
+ .Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
+
+ .InterfaceNumber = INTERFACE_ID_MassStorage,
+ .AlternateSetting = 0,
+
+ .TotalEndpoints = 2,
+
+ .Class = MS_CSCP_MassStorageClass,
+ .SubClass = MS_CSCP_SCSITransparentSubclass,
+ .Protocol = MS_CSCP_BulkOnlyTransportProtocol,
+
+ .InterfaceStrIndex = NO_DESCRIPTOR
+ },
+
+ .MS_DataInEndpoint =
+ {
+ .Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
+
+ .EndpointAddress = MASS_STORAGE_IN_EPADDR,
+ .Attributes = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
+ .EndpointSize = MASS_STORAGE_IO_EPSIZE,
+ .PollingIntervalMS = 0x05
+ },
+
+ .MS_DataOutEndpoint =
+ {
+ .Header = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
+
+ .EndpointAddress = MASS_STORAGE_OUT_EPADDR,
+ .Attributes = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
+ .EndpointSize = MASS_STORAGE_IO_EPSIZE,
+ .PollingIntervalMS = 0x05
+ }
+};
+
+/** 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 uint16_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);
+ }
+
+ *DescriptorAddress = Address;
+ return Size;
+}
+