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Reverted Endpoint/Pipe non-sequential configuration hack, placed restriction on the configuration order instead to ensure maximum reliability.

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Altered all low level device and host mode demos to ensure that endpoints and pipes are configured in ascending order properly.

Rewrote all low level host mode demos' configuration descriptor parser code to ensure that pipes are enumerated in ascending order, and to ensure maximum compatibility with devices.

Incremented all device mode demo's device descriptor revision numbers to ensure that any descriptor changes are re-fetched on machines which have enumerated previous versions.
This commit is contained in:
Dean Camera 2010-09-30 06:23:38 +00:00
parent a509729b2d
commit 158afe9109
106 changed files with 838 additions and 796 deletions
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64
Demos/Host/LowLevel/MouseHostWithParser/ConfigDescriptor.c
View file

@ -50,6 +50,8 @@ uint8_t ProcessConfigurationDescriptor(void)
uint8_t ConfigDescriptorData[512];
void* CurrConfigLocation = ConfigDescriptorData;
uint16_t CurrConfigBytesRem;
USB_Descriptor_Endpoint_t* DataINEndpoint = NULL;
/* Retrieve the entire configuration descriptor into the allocated buffer */
switch (USB_Host_GetDeviceConfigDescriptor(1, &CurrConfigBytesRem, ConfigDescriptorData, sizeof(ConfigDescriptorData)))
@ -63,40 +65,64 @@ uint8_t ProcessConfigurationDescriptor(void)
default:
return ControlError;
}
/* Get the mouse interface from the configuration descriptor */
/* Get the first HID interface from the configuration descriptor */
if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
DComp_NextMouseInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Descriptor not found, error out */
return NoHIDInterfaceFound;
return NoCompatibleInterfaceFound;
}
/* Get the mouse interface's HID descriptor */
/* Get the HID descriptor from the configuration descriptor */
if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
DComp_NextHID) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Descriptor not found, error out */
return NoHIDDescriptorFound;
return NoCompatibleInterfaceFound;
}
/* Save the HID report size for later use */
HIDReportSize = DESCRIPTOR_CAST(CurrConfigLocation, USB_Descriptor_HID_t).HIDReportLength;
/* Get the mouse interface's data endpoint descriptor */
if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
DComp_NextMouseInterfaceDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
while (!(DataINEndpoint))
{
/* Descriptor not found, error out */
return NoEndpointFound;
/* Get the next HID interface's data endpoint descriptor */
if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
DComp_NextMouseInterfaceDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Get the next HID interface from the configuration descriptor */
if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
DComp_NextMouseInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Descriptor not found, error out */
return NoCompatibleInterfaceFound;
}
/* Get the HID descriptor from the configuration descriptor */
if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
DComp_NextHID) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Descriptor not found, error out */
return NoCompatibleInterfaceFound;
}
/* Save the HID report size for later use */
HIDReportSize = DESCRIPTOR_CAST(CurrConfigLocation, USB_Descriptor_HID_t).HIDReportLength;
}
/* Retrieve the endpoint address from the endpoint descriptor */
USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Endpoint_t);
/* If the endpoint is a IN type endpoint */
if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
DataINEndpoint = EndpointData;
}
/* Retrieve the endpoint address from the endpoint descriptor */
USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(CurrConfigLocation, USB_Descriptor_Endpoint_t);
/* Configure the mouse data pipe */
Pipe_ConfigurePipe(MOUSE_DATAPIPE, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN,
EndpointData->EndpointAddress, EndpointData->EndpointSize, PIPE_BANK_SINGLE);
/* Configure the HID data IN pipe */
Pipe_ConfigurePipe(MOUSE_DATA_IN_PIPE, EP_TYPE_INTERRUPT, PIPE_TOKEN_IN,
DataINEndpoint->EndpointAddress, DataINEndpoint->EndpointSize, PIPE_BANK_SINGLE);
Pipe_SetInterruptPeriod(DataINEndpoint->PollingIntervalMS);
/* Valid data found, return success */
return SuccessfulConfigRead;

7
Demos/Host/LowLevel/MouseHostWithParser/ConfigDescriptor.h
View file

@ -53,6 +53,9 @@
/** Descriptor header type constant for a HID report descriptor. */
#define DTYPE_Report 0x22
/** Pipe number for the mouse report data pipe. */
#define MOUSE_DATA_IN_PIPE 1
/* Enums: */
/** Enum for the possible return codes of the \ref ProcessConfigurationDescriptor() function. */
@ -62,9 +65,7 @@
ControlError = 1, /**< A control request to the device failed to complete successfully */
DescriptorTooLarge = 2, /**< The device's Configuration Descriptor is too large to process */
InvalidConfigDataReturned = 3, /**< The device returned an invalid Configuration Descriptor */
NoHIDInterfaceFound = 4, /**< A compatible HID interface was not found in the device's Configuration Descriptor */
NoHIDDescriptorFound = 5, /**< A compatible HID descriptor was not found in the device's HID interface */
NoEndpointFound = 5, /**< A compatible HID IN endpoint was not found in the device's HID interface */
NoCompatibleInterfaceFound = 4, /**< A compatible interface with the required endpoints was not found */
};
/* Function Prototypes: */

2
Demos/Host/LowLevel/MouseHostWithParser/MouseHostWithParser.c
View file

@ -212,7 +212,7 @@ void Mouse_HID_Task(void)
break;
case HOST_STATE_Configured:
/* Select and unfreeze mouse data pipe */
Pipe_SelectPipe(MOUSE_DATAPIPE);
Pipe_SelectPipe(MOUSE_DATA_IN_PIPE);
Pipe_Unfreeze();
/* Check to see if a packet has been received */

3
Demos/Host/LowLevel/MouseHostWithParser/MouseHostWithParser.h
View file

@ -54,9 +54,6 @@
#include "HIDReport.h"
/* Macros: */
/** Pipe number for the mouse report data pipe. */
#define MOUSE_DATAPIPE 1
/** LED mask for the library LED driver, to indicate that the USB interface is not ready. */
#define LEDMASK_USB_NOTREADY LEDS_LED1