/****************************************************************************** * * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. * * 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. */ #include "xc_private.h" #include #include #include #include int xc_interface_open(void) { int flags, saved_errno; int fd = open("/dev/xen/privcmd", O_RDWR); if ( fd == -1 ) { PERROR("Could not obtain handle on privileged command interface"); return -1; } /* Although we return the file handle as the 'xc handle' the API does not specify / guarentee that this integer is in fact a file handle. Thus we must take responsiblity to ensure it doesn't propagate (ie leak) outside the process */ if ( (flags = fcntl(fd, F_GETFD)) < 0 ) { PERROR("Could not get file handle flags"); goto error; } flags |= FD_CLOEXEC; if ( fcntl(fd, F_SETFD, flags) < 0 ) { PERROR("Could not set file handle flags"); goto error; } return fd; error: saved_errno = errno; close(fd); errno = saved_errno; return -1; } int xc_interface_close(int xc_handle) { return close(xc_handle); } void *xc_map_foreign_batch(int xc_handle, uint32_t dom, int prot, xen_pfn_t *arr, int num) { privcmd_mmapbatch_t ioctlx; void *addr; addr = mmap(NULL, num*PAGE_SIZE, prot, MAP_SHARED, xc_handle, 0); if ( addr == MAP_FAILED ) return NULL; ioctlx.num=num; ioctlx.dom=dom; ioctlx.addr=(unsigned long)addr; ioctlx.arr=arr; if ( ioctl(xc_handle, IOCTL_PRIVCMD_MMAPBATCH, &ioctlx) < 0 ) { int saved_errno = errno; perror("XXXXXXXX"); (void)munmap(addr, num*PAGE_SIZE); errno = saved_errno; return NULL; } return addr; } void *xc_map_foreign_range(int xc_handle, uint32_t dom, int size, int prot, unsigned long mfn) { privcmd_mmap_t ioctlx; privcmd_mmap_entry_t entry; void *addr; addr = mmap(NULL, size, prot, MAP_SHARED, xc_handle, 0); if ( addr == MAP_FAILED ) return NULL; ioctlx.num=1; ioctlx.dom=dom; ioctlx.entry=&entry; entry.va=(unsigned long) addr; entry.mfn=mfn; entry.npages=(size+PAGE_SIZE-1)>>PAGE_SHIFT; if ( ioctl(xc_handle, IOCTL_PRIVCMD_MMAP, &ioctlx) < 0 ) { int saved_errno = errno; (void)munmap(addr, size); errno = saved_errno; return NULL; } return addr; } void *xc_map_foreign_ranges(int xc_handle, uint32_t dom, size_t size, int prot, size_t chunksize, privcmd_mmap_entry_t entries[], int nentries) { privcmd_mmap_t ioctlx; int i, rc; void *addr; addr = mmap(NULL, size, prot, MAP_SHARED, xc_handle, 0); if (addr == MAP_FAILED) goto mmap_failed; for (i = 0; i < nentries; i++) { entries[i].va = (uintptr_t)addr + (i * chunksize); entries[i].npages = chunksize >> PAGE_SHIFT; } ioctlx.num = nentries; ioctlx.dom = dom; ioctlx.entry = entries; rc = ioctl(xc_handle, IOCTL_PRIVCMD_MMAP, &ioctlx); if (rc) goto ioctl_failed; return addr; ioctl_failed: rc = munmap(addr, size); if (rc == -1) ERROR("%s: error in error path\n", __FUNCTION__); mmap_failed: return NULL; } static int do_privcmd(int xc_handle, unsigned int cmd, unsigned long data) { return ioctl(xc_handle, cmd, data); } int do_xen_hypercall(int xc_handle, privcmd_hypercall_t *hypercall) { return do_privcmd(xc_handle, IOCTL_PRIVCMD_HYPERCALL, (unsigned long)hypercall); } int xc_evtchn_open(void) { int fd; if ( (fd = open("/dev/xen/evtchn", O_RDWR)) == -1 ) { PERROR("Could not open event channel interface"); return -1; } return fd; } int xc_evtchn_close(int xce_handle) { return close(xce_handle); } int xc_evtchn_fd(int xce_handle) { return xce_handle; } int xc_evtchn_notify(int xce_handle, evtchn_port_t port) { struct ioctl_evtchn_notify notify; notify.port = port; return ioctl(xce_handle, IOCTL_EVTCHN_NOTIFY, ¬ify); } evtchn_port_or_error_t xc_evtchn_bind_unbound_port(int xce_handle, int domid) { struct ioctl_evtchn_bind_unbound_port bind; bind.remote_domain = domid; return ioctl(xce_handle, IOCTL_EVTCHN_BIND_UNBOUND_PORT, &bind); } evtchn_port_or_error_t xc_evtchn_bind_interdomain(int xce_handle, int domid, evtchn_port_t remote_port) { struct ioctl_evtchn_bind_interdomain bind; bind.remote_domain = domid; bind.remote_port = remote_port; return ioctl(xce_handle, IOCTL_EVTCHN_BIND_INTERDOMAIN, &bind); } evtchn_port_or_error_t xc_evtchn_bind_virq(int xce_handle, unsigned int virq) { struct ioctl_evtchn_bind_virq bind; bind.virq = virq; return ioctl(xce_handle, IOCTL_EVTCHN_BIND_VIRQ, &bind); } int xc_evtchn_unbind(int xce_handle, evtchn_port_t port) { struct ioctl_evtchn_unbind unbind; unbind.port = port; return ioctl(xce_handle, IOCTL_EVTCHN_UNBIND, &unbind); } evtchn_port_or_error_t xc_evtchn_pending(int xce_handle) { evtchn_port_t port; if ( read_exact(xce_handle, (char *)&port, sizeof(port)) == -1 ) return -1; return port; } int xc_evtchn_unmask(int xce_handle, evtchn_port_t port) { return write_exact(xce_handle, (char *)&port, sizeof(port)); } /* Optionally flush file to disk and discard page cache */ void discard_file_cache(int fd, int flush) { // TODO: Implement for Solaris! } grant_entry_v1_t *xc_gnttab_map_table_v1( int xc_handle, int domid, int *gnt_num) { return NULL; } grant_entry_v2_t *xc_gnttab_map_table_v2( int xc_handle, int domid, int *gnt_num) { return NULL; } n99' href='#n99'>99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 
/*
             LUFA Library
     Copyright (C) Dean Camera, 2010.
              
  dean [at] fourwalledcubicle [dot] com
      www.fourwalledcubicle.com
*/

/*
  Copyright 2010  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"

/* On some devices, there is a factory set internal serial number which can be automatically sent to the host as
 * the device's serial number when the Device Descriptor's .SerialNumStrIndex entry is set to USE_INTERNAL_SERIAL.
 * This allows the host to track a device across insertions on different ports, allowing them to retain allocated
 * resources like COM port numbers and drivers. On demos using this feature, give a warning on unsupported devices
 * so that the user can supply their own serial number descriptor instead or remove the USE_INTERNAL_SERIAL value
 * from the Device Descriptor (forcing the host to generate a serial number for each device from the VID, PID and
 * port location).
 */
#if (USE_INTERNAL_SERIAL == NO_DESCRIPTOR)
	#warning USE_INTERNAL_SERIAL is not available on this AVR - please manually construct a device serial descriptor.
#endif

/** 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 PROGMEM DeviceDescriptor =
{
	.Header                 = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},

	.USBSpecification       = VERSION_BCD(01.10),
	.Class                  = 0x02,
	.SubClass               = 0x00,
	.Protocol               = 0x00,

	.Endpoint0Size          = FIXED_CONTROL_ENDPOINT_SIZE,

	.VendorID               = 0x03EB,
	.ProductID              = 0x2044,
	.ReleaseNumber          = 0x0000,

	.ManufacturerStrIndex   = 0x01,
	.ProductStrIndex        = 0x02,
	.SerialNumStrIndex      = USE_INTERNAL_SERIAL,

	.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 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_BUSPOWERED | USB_CONFIG_ATTR_SELFPOWERED),
			
			.MaxPowerConsumption    = USB_CONFIG_POWER_MA(100)
		},
		
	.CCI_Interface = 
		{
			.Header                 = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},

			.InterfaceNumber        = 0,
			.AlternateSetting       = 0,
			
			.TotalEndpoints         = 1,
			
			.Class                  = 0x02,
			.SubClass               = 0x02,
			.Protocol               = 0x01,
			
			.InterfaceStrIndex      = NO_DESCRIPTOR
		},

	.CDC_Functional_IntHeader = 
		{
			.Header                 = {.Size = sizeof(CDC_FUNCTIONAL_DESCRIPTOR(2)), .Type = 0x24},
			.SubType                = 0x00,
			
			.Data                   = {0x01, 0x10}
		},

	.CDC_Functional_CallManagement = 
		{
			.Header                 = {.Size = sizeof(CDC_FUNCTIONAL_DESCRIPTOR(2)), .Type = 0x24},
			.SubType                = 0x01,
			
			.Data                   = {0x03, 0x01}
		},

	.CDC_Functional_AbstractControlManagement = 
		{
			.Header                 = {.Size = sizeof(CDC_FUNCTIONAL_DESCRIPTOR(1)), .Type = 0x24},
			.SubType                = 0x02,
			
			.Data                   = {0x06}
		},
		
	.CDC_Functional_Union = 
		{
			.Header                 = {.Size = sizeof(CDC_FUNCTIONAL_DESCRIPTOR(2)), .Type = 0x24},
			.SubType                = 0x06,
			
			.Data                   = {0x00, 0x01}
		},

	.ManagementEndpoint = 
		{
			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
			
			.EndpointAddress        = (ENDPOINT_DESCRIPTOR_DIR_IN | CDC_NOTIFICATION_EPNUM),
			.Attributes             = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
			.EndpointSize           = CDC_NOTIFICATION_EPSIZE,
			.PollingIntervalMS      = 0xFF
		},

	.DCI_Interface = 
		{
			.Header                 = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},

			.InterfaceNumber        = 1,
			.AlternateSetting       = 0,
			
			.TotalEndpoints         = 2,
				
			.Class                  = 0x0A,
			.SubClass               = 0x00,
			.Protocol               = 0x00,
				
			.InterfaceStrIndex      = NO_DESCRIPTOR
		},

	.DataOutEndpoint = 
		{
			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
			
			.EndpointAddress        = (ENDPOINT_DESCRIPTOR_DIR_OUT | CDC_RX_EPNUM),
			.Attributes             = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
			.EndpointSize           = CDC_TXRX_EPSIZE,
			.PollingIntervalMS      = 0x00
		},
		
	.DataInEndpoint = 
		{
			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
			
			.EndpointAddress        = (ENDPOINT_DESCRIPTOR_DIR_IN | CDC_TX_EPNUM),
			.Attributes             = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
			.EndpointSize           = CDC_TXRX_EPSIZE,
			.PollingIntervalMS      = 0x00
		}
};

/** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests
 *  the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate
 *  via the language ID table available at USB.org what languages the device supports for its string descriptors.
 */
USB_Descriptor_String_t PROGMEM LanguageString =
{
	.Header                 = {.Size = USB_STRING_LEN(1), .Type = DTYPE_String},

	.UnicodeString          = {LANGUAGE_ID_ENG}
};

/** Manufacturer descriptor string. This is a Unicode string containing the manufacturer's details in human readable
 *  form, and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
 *  Descriptor.
 */
USB_Descriptor_String_t PROGMEM ManufacturerString =
{
	.Header                 = {.Size = USB_STRING_LEN(11), .Type = DTYPE_String},

	.UnicodeString          = L"Dean Camera"
};

/** Product descriptor string. This is a Unicode string containing the product's details in human readable form,
 *  and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
 *  Descriptor.
 */
USB_Descriptor_String_t PROGMEM ProductString =
{
	.Header                 = {.Size = USB_STRING_LEN(12), .Type = DTYPE_String},

	.UnicodeString          = L"LED Notifier"
};

/** 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, void** const DescriptorAddress)
{
	const uint8_t  DescriptorType   = (wValue >> 8);
	const uint8_t  DescriptorNumber = (wValue & 0xFF);

	void*          Address = NULL;
	uint16_t       Size    = NO_DESCRIPTOR;

	switch (DescriptorType)
	{
		case DTYPE_Device:
			Address = (void*)&DeviceDescriptor;
			Size    = sizeof(USB_Descriptor_Device_t);
			break;
		case DTYPE_Configuration: 
			Address = (void*)&ConfigurationDescriptor;
			Size    = sizeof(USB_Descriptor_Configuration_t);
			break;
		case DTYPE_String: 
			switch (DescriptorNumber)
			{
				case 0x00: 
					Address = (void*)&LanguageString;
					Size    = pgm_read_byte(&LanguageString.Header.Size);
					break;
				case 0x01: 
					Address = (void*)&ManufacturerString;
					Size    = pgm_read_byte(&ManufacturerString.Header.Size);
					break;
				case 0x02: 
					Address = (void*)&ProductString;
					Size    = pgm_read_byte(&ProductString.Header.Size);
					break;
			}
			
			break;
	}
	
	*DescriptorAddress = Address;
	return Size;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-11 10:00:24 +0000