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authorDean Camera <dean@fourwalledcubicle.com>2009-09-01 13:57:47 +0000
committerDean Camera <dean@fourwalledcubicle.com>2009-09-01 13:57:47 +0000
commit113df4878b305759df30f4f0d434830fba3fc57f (patch)
treecf9e65e17f73ba9b651a0eb1f55d68d094a3c87c /Projects
parent0e2ffebb82af721299f2df9089f66f9da68e1e1e (diff)
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Fix up MissileLauncher demo's ConfigurationDescriptor.c so that it uses the new USB_GetDeviceConfigDescriptor() function parameters.
Diffstat (limited to 'Projects')
-rw-r--r--Projects/MissileLauncher/ConfigDescriptor.c37
1 files changed, 16 insertions, 21 deletions
diff --git a/Projects/MissileLauncher/ConfigDescriptor.c b/Projects/MissileLauncher/ConfigDescriptor.c
index 405daa4fe..0a50beb57 100644
--- a/Projects/MissileLauncher/ConfigDescriptor.c
+++ b/Projects/MissileLauncher/ConfigDescriptor.c
@@ -47,31 +47,26 @@
*/
uint8_t ProcessConfigurationDescriptor(void)
{
- uint8_t* ConfigDescriptorData;
- uint16_t ConfigDescriptorSize;
-
+ uint8_t ConfigDescriptorData[512];
+ uint8_t* CurrConfigLocation = ConfigDescriptorData;
+ uint16_t CurrConfigBytesRem;
uint8_t FoundEndpoints = 0;
-
- /* Get Configuration Descriptor size from the device */
- if (USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful)
- return ControlError;
-
- /* Ensure that the Configuration Descriptor isn't too large */
- if (ConfigDescriptorSize > MAX_CONFIG_DESCRIPTOR_SIZE)
- return DescriptorTooLarge;
-
- /* Allocate enough memory for the entire config descriptor */
- ConfigDescriptorData = alloca(ConfigDescriptorSize);
/* Retrieve the entire configuration descriptor into the allocated buffer */
- USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData);
-
- /* Validate returned data - ensure first entry is a configuration header descriptor */
- if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
- return InvalidConfigDataReturned;
+ switch (USB_GetDeviceConfigDescriptor(1, &CurrConfigBytesRem, ConfigDescriptorData, sizeof(ConfigDescriptorData)))
+ {
+ case HOST_GETCONFIG_Successful:
+ break;
+ case HOST_GETCONFIG_InvalidData:
+ return InvalidConfigDataReturned;
+ case HOST_GETCONFIG_BuffOverflow:
+ return DescriptorTooLarge;
+ default:
+ return ControlError;
+ }
/* Get the HID interface from the configuration descriptor */
- if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
+ if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
DComp_NextHIDInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Descriptor not found, error out */
@@ -81,7 +76,7 @@ uint8_t ProcessConfigurationDescriptor(void)
while (FoundEndpoints != ((1 << HID_DATA_IN_PIPE) | (1 << HID_DATA_OUT_PIPE)))
{
/* Get the next HID interface's data endpoint descriptor */
- if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
+ if (USB_GetNextDescriptorComp(&CurrConfigBytesRem, &CurrConfigLocation,
DComp_NextInterfaceHIDDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Not all HID devices have an OUT endpoint - if we've reached the end of the HID descriptor