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Remove compiler warnings.

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Richard Barry 2009-08-09 12:10:34 +00:00
parent e9830a7ee3
commit 790bacc8f2
3 changed files with 72 additions and 69 deletions
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71
Demo/CORTEX_LPC1768_GCC_Rowley/LPCUSB/usbstdreq.c
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@ -1,5 +1,5 @@
/*
LPCUSB, an USB device driver for LPC microcontrollers
LPCUSB, an USB device driver for LPC microcontrollers
Copyright (C) 2006 Bertrik Sikken (bertrik@sikken.nl)
Redistribution and use in source and binary forms, with or without
@ -16,7 +16,7 @@
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
@ -28,11 +28,11 @@
/** @file
Standard request handler.
This modules handles the 'chapter 9' processing, specifically the
standard device requests in table 9-3 from the universal serial bus
specification revision 2.0
Specific types of devices may specify additional requests (for example
HID devices add a GET_DESCRIPTOR request for interfaces), but they
will not be part of this module.
@ -40,7 +40,7 @@
@todo some requests have to return a request error if device not configured:
@todo GET_INTERFACE, GET_STATUS, SET_INTERFACE, SYNCH_FRAME
@todo this applies to the following if endpoint != 0:
@todo SET_FEATURE, GET_FEATURE
@todo SET_FEATURE, GET_FEATURE
*/
#include "usbdebug.h"
@ -52,11 +52,11 @@
/* general descriptor field offsets */
#define DESC_bLength 0 /**< length offset */
#define DESC_bDescriptorType 1 /**< descriptor type offset */
#define DESC_bDescriptorType 1 /**< descriptor type offset */
/* config descriptor field offsets */
#define CONF_DESC_wTotalLength 2 /**< total length offset */
#define CONF_DESC_bConfigurationValue 5 /**< configuration value offset */
#define CONF_DESC_bConfigurationValue 5 /**< configuration value offset */
#define CONF_DESC_bmAttributes 7 /**< configuration characteristics */
/* interface descriptor field offsets */
@ -90,12 +90,12 @@ void USBRegisterDescriptors(const unsigned char *pabDescriptors)
/**
Parses the list of installed USB descriptors and attempts to find
the specified USB descriptor.
@param [in] wTypeIndex Type and index of the descriptor
@param [in] wLangID Language ID of the descriptor (currently unused)
@param [out] *piLen Descriptor length
@param [out] *ppbData Descriptor data
@return TRUE if the descriptor was found, FALSE otherwise
*/
BOOL USBGetDescriptor(unsigned short wTypeIndex, unsigned short wLangID, int *piLen, unsigned char **ppbData)
@ -103,15 +103,16 @@ BOOL USBGetDescriptor(unsigned short wTypeIndex, unsigned short wLangID, int *pi
unsigned char bType, bIndex;
unsigned char *pab;
int iCurIndex;
( void ) wLangID;
ASSERT(pabDescrip != NULL);
bType = GET_DESC_TYPE(wTypeIndex);
bIndex = GET_DESC_INDEX(wTypeIndex);
pab = (unsigned char *)pabDescrip;
iCurIndex = 0;
while (pab[DESC_bLength] != 0) {
if (pab[DESC_bDescriptorType] == bType) {
if (iCurIndex == bIndex) {
@ -144,12 +145,12 @@ BOOL USBGetDescriptor(unsigned short wTypeIndex, unsigned short wLangID, int *pi
Configures the device according to the specified configuration index and
alternate setting by parsing the installed USB descriptor list.
A configuration index of 0 unconfigures the device.
@param [in] bConfigIndex Configuration index
@param [in] bAltSetting Alternate setting number
@todo function always returns TRUE, add stricter checking?
@return TRUE if successfully configured, FALSE otherwise
*/
static BOOL USBSetConfiguration(unsigned char bConfigIndex, unsigned char bAltSetting)
@ -158,7 +159,7 @@ static BOOL USBSetConfiguration(unsigned char bConfigIndex, unsigned char bAltSe
unsigned char bCurConfig, bCurAltSetting;
unsigned char bEP;
unsigned short wMaxPktSize;
ASSERT(pabDescrip != NULL);
if (bConfigIndex == 0) {
@ -203,7 +204,7 @@ static BOOL USBSetConfiguration(unsigned char bConfigIndex, unsigned char bAltSe
// skip to next descriptor
pab += pab[DESC_bLength];
}
// configure device
USBHwConfigDevice(TRUE);
}
@ -214,7 +215,7 @@ static BOOL USBSetConfiguration(unsigned char bConfigIndex, unsigned char bAltSe
/**
Local function to handle a standard device request
@param [in] pSetup The setup packet
@param [in,out] *piLen Pointer to data length
@param [in,out] ppbData Data buffer.
@ -226,7 +227,7 @@ static BOOL HandleStdDeviceReq(TSetupPacket *pSetup, int *piLen, unsigned char *
unsigned char *pbData = *ppbData;
switch (pSetup->bRequest) {
case REQ_GET_STATUS:
// bit 0: self-powered
// bit 1: remote wakeup = not supported
@ -234,7 +235,7 @@ static BOOL HandleStdDeviceReq(TSetupPacket *pSetup, int *piLen, unsigned char *
pbData[1] = 0;
*piLen = 2;
break;
case REQ_SET_ADDRESS:
USBHwSetAddress(pSetup->wValue);
break;
@ -255,7 +256,7 @@ static BOOL HandleStdDeviceReq(TSetupPacket *pSetup, int *piLen, unsigned char *
return FALSE;
}
// configuration successful, update current configuration
bConfiguration = pSetup->wValue & 0xFF;
bConfiguration = pSetup->wValue & 0xFF;
break;
case REQ_CLEAR_FEATURE:
@ -276,14 +277,14 @@ static BOOL HandleStdDeviceReq(TSetupPacket *pSetup, int *piLen, unsigned char *
DBG("Illegal device req %d\n", pSetup->bRequest);
return FALSE;
}
return TRUE;
}
/**
Local function to handle a standard interface request
@param [in] pSetup The setup packet
@param [in,out] *piLen Pointer to data length
@param [in] ppbData Data buffer.
@ -307,13 +308,13 @@ static BOOL HandleStdInterfaceReq(TSetupPacket *pSetup, int *piLen, unsigned cha
case REQ_SET_FEATURE:
// not defined for interface
return FALSE;
case REQ_GET_INTERFACE: // TODO use bNumInterfaces
// there is only one interface, return n-1 (= 0)
pbData[0] = 0;
*piLen = 1;
break;
case REQ_SET_INTERFACE: // TODO use bNumInterfaces
// there is only one interface (= 0)
if (pSetup->wValue != 0) {
@ -333,7 +334,7 @@ static BOOL HandleStdInterfaceReq(TSetupPacket *pSetup, int *piLen, unsigned cha
/**
Local function to handle a standard endpoint request
@param [in] pSetup The setup packet
@param [in,out] *piLen Pointer to data length
@param [in] ppbData Data buffer.
@ -351,7 +352,7 @@ static BOOL HandleStdEndPointReq(TSetupPacket *pSetup, int *piLen, unsigned char
pbData[1] = 0;
*piLen = 2;
break;
case REQ_CLEAR_FEATURE:
if (pSetup->wValue == FEA_ENDPOINT_HALT) {
// clear HALT by unstalling
@ -360,7 +361,7 @@ static BOOL HandleStdEndPointReq(TSetupPacket *pSetup, int *piLen, unsigned char
}
// only ENDPOINT_HALT defined for endpoints
return FALSE;
case REQ_SET_FEATURE:
if (pSetup->wValue == FEA_ENDPOINT_HALT) {
// set HALT by stalling
@ -378,16 +379,16 @@ static BOOL HandleStdEndPointReq(TSetupPacket *pSetup, int *piLen, unsigned char
DBG("Illegal EP req %d\n", pSetup->bRequest);
return FALSE;
}
return TRUE;
}
/**
Default handler for standard ('chapter 9') requests
If a custom request handler was installed, this handler is called first.
@param [in] pSetup The setup packet
@param [in,out] *piLen Pointer to data length
@param [in] ppbData Data buffer.
@ -400,7 +401,7 @@ BOOL USBHandleStandardRequest(TSetupPacket *pSetup, int *piLen, unsigned char **
if ((pfnHandleCustomReq != NULL) && pfnHandleCustomReq(pSetup, piLen, ppbData)) {
return TRUE;
}
switch (REQTYPE_GET_RECIP(pSetup->bmRequestType)) {
case REQTYPE_RECIP_DEVICE: return HandleStdDeviceReq(pSetup, piLen, ppbData);
case REQTYPE_RECIP_INTERFACE: return HandleStdInterfaceReq(pSetup, piLen, ppbData);
@ -412,15 +413,15 @@ BOOL USBHandleStandardRequest(TSetupPacket *pSetup, int *piLen, unsigned char **
/**
Registers a callback for custom device requests
In USBHandleStandardRequest, the custom request handler gets a first
chance at handling the request before it is handed over to the 'chapter 9'
request handler.
This can be used for example in HID devices, where a REQ_GET_DESCRIPTOR
request is sent to an interface, which is not covered by the 'chapter 9'
specification.
@param [in] pfnHandler Callback function pointer
*/
void USBRegisterCustomReqHandler(TFnHandleRequest *pfnHandler)