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devices: merge to list_head

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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2008-08-31 04:24:55 +02:00
parent ef0255fc75
commit c1de7a6daf
9 changed files with 87 additions and 907 deletions
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1
common/Makefile
View file

@ -37,7 +37,6 @@ COBJS-y += dlmalloc.o
COBJS-y += exports.o
COBJS-y += hush.o
COBJS-y += image.o
COBJS-y += lists.o
COBJS-y += memsize.o
COBJS-y += s_record.o
COBJS-y += serial.o

9
common/cmd_console.c
View file

@ -31,14 +31,17 @@
extern void _do_coninfo (void);
int do_coninfo (cmd_tbl_t * cmd, int flag, int argc, char *argv[])
{
int i, l;
int l;
struct list_head *list = device_get_list();
struct list_head *pos;
device_t *dev;
/* Scan for valid output and input devices */
puts ("List of available devices:\n");
for (i = 1; i <= ListNumItems (devlist); i++) {
device_t *dev = ListGetPtrToItem (devlist, i);
list_for_each(pos, list) {
dev = list_entry(pos, device_t, list);
printf ("%-8s %08x %c%c%c ",
dev->name,

10
common/cmd_terminal.c
View file

@ -27,10 +27,10 @@
#include <common.h>
#include <command.h>
#include <devices.h>
#include <serial.h>
int do_terminal(cmd_tbl_t * cmd, int flag, int argc, char *argv[])
{
int i, l;
int last_tilde = 0;
device_t *dev = NULL;
@ -38,13 +38,7 @@ int do_terminal(cmd_tbl_t * cmd, int flag, int argc, char *argv[])
return -1;
/* Scan for selected output/input device */
for (i = 1; i <= ListNumItems (devlist); i++) {
device_t *tmp = ListGetPtrToItem (devlist, i);
if (!strcmp(tmp->name, argv[1])) {
dev = tmp;
break;
}
}
dev = device_get_by_name(argv[1]);
if (!dev)
return -1;

62
common/console.c
View file

@ -325,9 +325,22 @@ inline void dbg(const char *fmt, ...)
/** U-Boot INIT FUNCTIONS *************************************************/
device_t *search_device (int flags, char *name)
{
device_t *dev;
dev = device_get_by_name(name);
if(dev && (dev->flags & flags))
return dev;
return NULL;
}
int console_assign (int file, char *devname)
{
int flag, i;
int flag;
device_t *dev;
/* Check for valid file */
switch (file) {
@ -344,16 +357,10 @@ int console_assign (int file, char *devname)
/* Check for valid device name */
for (i = 1; i <= ListNumItems (devlist); i++) {
device_t *dev = ListGetPtrToItem (devlist, i);
dev = search_device(flag, devname);
if (strcmp (devname, dev->name) == 0) {
if (dev->flags & flag)
return console_setfile (file, dev);
return -1;
}
}
if(dev)
return console_setfile (file, dev);
return -1;
}
@ -371,27 +378,6 @@ int console_init_f (void)
return (0);
}
#if defined(CFG_CONSOLE_IS_IN_ENV) || defined(CONFIG_SPLASH_SCREEN) || defined(CONFIG_SILENT_CONSOLE)
/* search a device */
device_t *search_device (int flags, char *name)
{
int i, items;
device_t *dev = NULL;
items = ListNumItems (devlist);
if (name == NULL)
return dev;
for (i = 1; i <= items; i++) {
dev = ListGetPtrToItem (devlist, i);
if ((dev->flags & flags) && (strcmp (name, dev->name) == 0)) {
break;
}
}
return dev;
}
#endif /* CFG_CONSOLE_IS_IN_ENV || CONFIG_SPLASH_SCREEN */
#ifdef CFG_CONSOLE_IS_IN_ENV
/* Called after the relocation - use desired console functions */
int console_init_r (void)
@ -488,7 +474,10 @@ int console_init_r (void)
int console_init_r (void)
{
device_t *inputdev = NULL, *outputdev = NULL;
int i, items = ListNumItems (devlist);
int i;
struct list_head *list = device_get_list();
struct list_head *pos;
device_t *dev;
#ifdef CONFIG_SPLASH_SCREEN
/* suppress all output if splash screen is enabled and we have
@ -498,11 +487,8 @@ int console_init_r (void)
#endif
/* Scan devices looking for input and output devices */
for (i = 1;
(i <= items) && ((inputdev == NULL) || (outputdev == NULL));
i++
) {
device_t *dev = ListGetPtrToItem (devlist, i);
list_for_each(pos, list) {
dev = list_entry(pos, device_t, list);
if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
inputdev = dev;
@ -510,6 +496,8 @@ int console_init_r (void)
if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
outputdev = dev;
}
if(inputdev && outputdev)
break;
}
/* Initializes output console first */

79
common/devices.c
View file

@ -36,7 +36,7 @@
DECLARE_GLOBAL_DATA_PTR;
list_t devlist = 0;
static device_t devs;
device_t *stdio_devices[] = { NULL, NULL, NULL };
char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };
@ -48,18 +48,18 @@ char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };
#ifdef CFG_DEVICE_NULLDEV
void nulldev_putc(const char c)
{
/* nulldev is empty! */
/* nulldev is empty! */
}
void nulldev_puts(const char *s)
{
/* nulldev is empty! */
/* nulldev is empty! */
}
int nulldev_input(void)
{
/* nulldev is empty! */
return 0;
/* nulldev is empty! */
return 0;
}
#endif
@ -108,10 +108,32 @@ static void drv_system_init (void)
* DEVICES
**************************************************************************
*/
struct list_head* device_get_list(void)
{
return &(devs.list);
}
device_t* device_get_by_name(char* name)
{
struct list_head *pos;
device_t *dev;
if(!name)
return NULL;
list_for_each(pos, &(devs.list)) {
dev = list_entry(pos, device_t, list);
if(strcmp(dev->name, name) == 0)
return dev;
}
return NULL;
}
int device_register (device_t * dev)
{
ListInsertItem (devlist, dev, LIST_END);
list_add(&(dev->list), &(devs.list));
return 0;
}
@ -121,20 +143,15 @@ int device_register (device_t * dev)
#ifdef CFG_DEVICE_DEREGISTER
int device_deregister(char *devname)
{
int i,l,dev_index;
device_t *dev = NULL;
int l;
struct list_head *pos;
device_t *dev;
char temp_names[3][8];
dev_index = -1;
for (i=1; i<=ListNumItems(devlist); i++) {
dev = ListGetPtrToItem (devlist, i);
if(strcmp(dev->name,devname)==0) {
dev_index=i;
break;
}
}
if(dev_index<0) /* device not found */
return 0;
dev = device_get_by_name(devname);
if(!dev) /* device not found */
return -1;
/* get stdio devices (ListRemoveItem changes the dev list) */
for (l=0 ; l< MAX_FILES; l++) {
if (stdio_devices[l] == dev) {
@ -145,14 +162,15 @@ int device_deregister(char *devname)
stdio_devices[l]->name,
sizeof(stdio_devices[l]->name));
}
ListRemoveItem(devlist,NULL,dev_index);
list_del(&(dev->list));
/* reassign Device list */
for (i=1; i<=ListNumItems(devlist); i++) {
dev = ListGetPtrToItem (devlist, i);
list_for_each(pos, &(devs.list)) {
dev = list_entry(pos, device_t, list);
for (l=0 ; l< MAX_FILES; l++) {
if(strcmp(dev->name,temp_names[l])==0) {
if(strcmp(dev->name, temp_names[l]) == 0)
stdio_devices[l] = dev;
}
}
}
return 0;
@ -161,7 +179,7 @@ int device_deregister(char *devname)
int devices_init (void)
{
#ifndef CONFIG_ARM /* already relocated for current ARM implementation */
#ifndef CONFIG_ARM /* already relocated for current ARM implementation */
ulong relocation_offset = gd->reloc_off;
int i;
@ -173,12 +191,8 @@ int devices_init (void)
#endif
/* Initialize the list */
devlist = ListCreate (sizeof (device_t));
INIT_LIST_HEAD(&(devs.list));
if (devlist == NULL) {
eputs ("Cannot initialize the list of devices!\n");
return -1;
}
#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
#endif
@ -207,10 +221,3 @@ int devices_init (void)
return (0);
}
int devices_done (void)
{
ListDispose (devlist);
return 0;
}

734
common/lists.c
View file

@ -1,734 +0,0 @@
#include <common.h>
#include <malloc.h>
#include <lists.h>
#define MAX(a,b) (((a)>(b)) ? (a) : (b))
#define MIN(a,b) (((a)<(b)) ? (a) : (b))
#define CAT4CHARS(a,b,c,d) ((a<<24) | (b<<16) | (c<<8) | d)
/* increase list size by 10% every time it is full */
#define kDefaultAllocationPercentIncrease 10
/* always increase list size by 4 items when it is full */
#define kDefaultAllocationminNumItemsIncrease 4
/*
* how many items to expand the list by when it becomes full
* = current listSize (in items) + (hiword percent of list size) + loword
*/
#define NUMITEMSPERALLOC(list) MAX(((*list)->listSize * \
((*list)->percentIncrease + 100)) / 100, \
(*list)->minNumItemsIncrease )
#define ITEMPTR(list,item) &(((char *)&(*list)->itemList)[(*(list))->itemSize * (item)])
#define LIST_SIGNATURE CAT4CHARS('L', 'I', 'S', 'T');
#define calloc(size,num) malloc(size*num)
/********************************************************************/
Handle NewHandle (unsigned int numBytes)
{
void *memPtr;
HandleRecord *hanPtr;
memPtr = calloc (numBytes, 1);
hanPtr = (HandleRecord *) calloc (sizeof (HandleRecord), 1);
if (hanPtr && (memPtr || numBytes == 0)) {
hanPtr->ptr = memPtr;
hanPtr->size = numBytes;
return (Handle) hanPtr;
} else {
free (memPtr);
free (hanPtr);
return NULL;
}
}
/********************************************************************/
void DisposeHandle (Handle handle)
{
if (handle) {
free (*handle);
free ((void *) handle);
}
}
/********************************************************************/
unsigned int GetHandleSize (Handle handle)
{
return ((HandleRecord *) handle)->size;
}
/********************************************************************/
int SetHandleSize (Handle handle, unsigned int newSize)
{
HandleRecord *hanRecPtr = (HandleRecord *) handle;
void *newPtr, *oldPtr;
unsigned int oldSize;
oldPtr = hanRecPtr->ptr;
oldSize = hanRecPtr->size;
if (oldSize == newSize)
return 1;
if (oldPtr == NULL) {
newPtr = malloc (newSize);
} else {
newPtr = realloc (oldPtr, newSize);
}
if (newPtr || (newSize == 0)) {
hanRecPtr->ptr = newPtr;
hanRecPtr->size = newSize;
if (newSize > oldSize)
memset ((char *) newPtr + oldSize, 0, newSize - oldSize);
return 1;
} else
return 0;
}
#ifdef CFG_ALL_LIST_FUNCTIONS
/* Used to compare list elements by their raw data contents */
static int ListMemBlockCmp (void *a, void *b, int size)
{
return memcmp (a, b, size);
}
/***************************************************************************/
/*
* Binary search numElements of size elementSize in array for a match
* to the. item. Return the index of the element that matches
* (0 - numElements - 1). If no match is found return the -i-1 where
* i is the index (0 - numElements) where the item should be placed.
* (*theCmp)(a,b) should return <0 if a<b, 0 if a==b, >0 if a>b.
*
* This function is like the C-Library function bsearch() except that
* this function returns the index where the item should be placed if
* it is not found.
*/
int BinSearch ( void *array, int numElements, int elementSize,
void *itemPtr, CompareFunction compareFunction)
{
int low, high, mid, cmp;
void *arrayItemPtr;
for (low = 0, high = numElements - 1, mid = 0, cmp = -1; low <= high;) {
mid = (low + high) >> 1;
arrayItemPtr = (void *) (((char *) array) + (mid * elementSize));
cmp = compareFunction
? compareFunction (itemPtr, arrayItemPtr)
: ListMemBlockCmp (itemPtr, arrayItemPtr, elementSize);
if (cmp == 0) {
return mid;
} else if (cmp < 0) {
high = mid - 1;
} else {
low = mid + 1;
}
}
if (cmp > 0)
mid++;
return -mid - 1;
}
#endif /* CFG_ALL_LIST_FUNCTIONS */
/*******************************************************************************/
/*
* If numNewItems == 0 then expand the list by the number of items
* indicated by its allocation policy.
* If numNewItems > 0 then expand the list by exactly the number of
* items indicated.
* If numNewItems < 0 then expand the list by the absolute value of
* numNewItems plus the number of items indicated by its allocation
* policy.
* Returns 1 for success, 0 if out of memory
*/
static int ExpandListSpace (list_t list, int numNewItems)
{
if (numNewItems == 0) {
numNewItems = NUMITEMSPERALLOC (list);
} else if (numNewItems < 0) {
numNewItems = (-numNewItems) + NUMITEMSPERALLOC (list);
}
if (SetHandleSize ((Handle) list,
sizeof (ListStruct) +
((*list)->listSize +
numNewItems) * (*list)->itemSize)) {
(*list)->listSize += numNewItems;
return 1;
} else {
return 0;
}
}
/*******************************/
#ifdef CFG_ALL_LIST_FUNCTIONS
/*
* This function reallocate the list, minus any currently unused
* portion of its allotted memory.
*/
void ListCompact (list_t list)
{
if (!SetHandleSize ((Handle) list,
sizeof (ListStruct) +
(*list)->numItems * (*list)->itemSize)) {
return;
}
(*list)->listSize = (*list)->numItems;
}
#endif /* CFG_ALL_LIST_FUNCTIONS */
/*******************************/
list_t ListCreate (int elementSize)
{
list_t list;
list = (list_t) (NewHandle (sizeof (ListStruct))); /* create empty list */
if (list) {
(*list)->signature = LIST_SIGNATURE;
(*list)->numItems = 0;
(*list)->listSize = 0;
(*list)->itemSize = elementSize;
(*list)->percentIncrease = kDefaultAllocationPercentIncrease;
(*list)->minNumItemsIncrease =
kDefaultAllocationminNumItemsIncrease;
}
return list;
}
/*******************************/
void ListSetAllocationPolicy (list_t list, int minItemsPerAlloc,
int percentIncreasePerAlloc)
{
(*list)->percentIncrease = percentIncreasePerAlloc;
(*list)->minNumItemsIncrease = minItemsPerAlloc;
}
/*******************************/
void ListDispose (list_t list)
{
DisposeHandle ((Handle) list);
}
/*******************************/
#ifdef CFG_ALL_LIST_FUNCTIONS
void ListDisposePtrList (list_t list)
{
int index;
int numItems;
if (list) {
numItems = ListNumItems (list);
for (index = 1; index <= numItems; index++)
free (*(void **) ListGetPtrToItem (list, index));
ListDispose (list);
}
}
/*******************************/
/*
* keeps memory, resets the number of items to 0
*/
void ListClear (list_t list)
{
if (!list)
return;
(*list)->numItems = 0;
}
/*******************************/
/*
* copy is only as large as necessary
*/
list_t ListCopy (list_t originalList)
{
list_t tempList = NULL;
int numItems;
if (!originalList)
return NULL;
tempList = ListCreate ((*originalList)->itemSize);
if (tempList) {
numItems = ListNumItems (originalList);
if (!SetHandleSize ((Handle) tempList,
sizeof (ListStruct) +
numItems * (*tempList)->itemSize)) {
ListDispose (tempList);
return NULL;
}
(*tempList)->numItems = (*originalList)->numItems;
(*tempList)->listSize = (*originalList)->numItems;
(*tempList)->itemSize = (*originalList)->itemSize;
(*tempList)->percentIncrease = (*originalList)->percentIncrease;
(*tempList)->minNumItemsIncrease =
(*originalList)->minNumItemsIncrease;
memcpy (ITEMPTR (tempList, 0), ITEMPTR (originalList, 0),
numItems * (*tempList)->itemSize);
}
return tempList;
}
/********************************/
/*
* list1 = list1 + list2
*/
int ListAppend (list_t list1, list_t list2)
{
int numItemsL1, numItemsL2;
if (!list2)
return 1;
if (!list1)
return 0;
if ((*list1)->itemSize != (*list2)->itemSize)
return 0;
numItemsL1 = ListNumItems (list1);
numItemsL2 = ListNumItems (list2);
if (numItemsL2 == 0)
return 1;
if (!SetHandleSize ((Handle) list1,
sizeof (ListStruct) + (numItemsL1 + numItemsL2) *
(*list1)->itemSize)) {
return 0;
}
(*list1)->numItems = numItemsL1 + numItemsL2;
(*list1)->listSize = numItemsL1 + numItemsL2;
memmove (ITEMPTR (list1, numItemsL1),
ITEMPTR (list2, 0),
numItemsL2 * (*list2)->itemSize);
return 1;
}
#endif /* CFG_ALL_LIST_FUNCTIONS */
/*******************************/
/*
* returns 1 if the item is inserted, returns 0 if out of memory or
* bad arguments were passed.
*/
int ListInsertItem (list_t list, void *ptrToItem, int itemPosition)
{
return ListInsertItems (list, ptrToItem, itemPosition, 1);
}
/*******************************/
int ListInsertItems (list_t list, void *ptrToItems, int firstItemPosition,
int numItemsToInsert)
{
int numItems = (*list)->numItems;
if (firstItemPosition == numItems + 1)
firstItemPosition = LIST_END;
else if (firstItemPosition > numItems)
return 0;
if ((*list)->numItems >= (*list)->listSize) {
if (!ExpandListSpace (list, -numItemsToInsert))
return 0;
}
if (firstItemPosition == LIST_START) {
if (numItems == 0) {
/* special case for empty list */
firstItemPosition = LIST_END;
} else {
firstItemPosition = 1;
}
}
if (firstItemPosition == LIST_END) { /* add at the end of the list */
if (ptrToItems)
memcpy (ITEMPTR (list, numItems), ptrToItems,
(*list)->itemSize * numItemsToInsert);
else
memset (ITEMPTR (list, numItems), 0,
(*list)->itemSize * numItemsToInsert);
(*list)->numItems += numItemsToInsert;
} else { /* move part of list up to make room for new item */
memmove (ITEMPTR (list, firstItemPosition - 1 + numItemsToInsert),
ITEMPTR (list, firstItemPosition - 1),
(numItems + 1 - firstItemPosition) * (*list)->itemSize);
if (ptrToItems)
memmove (ITEMPTR (list, firstItemPosition - 1), ptrToItems,
(*list)->itemSize * numItemsToInsert);
else
memset (ITEMPTR (list, firstItemPosition - 1), 0,
(*list)->itemSize * numItemsToInsert);
(*list)->numItems += numItemsToInsert;
}
return 1;
}
#ifdef CFG_ALL_LIST_FUNCTIONS
/*******************************/
int ListEqual (list_t list1, list_t list2)
{
if (list1 == list2)
return 1;
if (list1 == NULL || list2 == NULL)
return 0;
if ((*list1)->itemSize == (*list1)->itemSize) {
if ((*list1)->numItems == (*list2)->numItems) {
return (memcmp (ITEMPTR (list1, 0), ITEMPTR (list2, 0),
(*list1)->itemSize * (*list1)->numItems) == 0);
}
}
return 0;
}
/*******************************/
/*
* The item pointed to by ptrToItem is copied over the current item
* at itemPosition
*/
void ListReplaceItem (list_t list, void *ptrToItem, int itemPosition)
{
ListReplaceItems (list, ptrToItem, itemPosition, 1);
}
/*******************************/
/*
* The item pointed to by ptrToItems is copied over the current item
* at itemPosition
*/
void ListReplaceItems ( list_t list, void *ptrToItems,
int firstItemPosition, int numItemsToReplace)
{
if (firstItemPosition == LIST_END)
firstItemPosition = (*list)->numItems;
else if (firstItemPosition == LIST_START)
firstItemPosition = 1;
memmove (ITEMPTR (list, firstItemPosition - 1), ptrToItems,
(*list)->itemSize * numItemsToReplace);
}
/*******************************/
void ListGetItem (list_t list, void *itemDestination, int itemPosition)
{
ListGetItems (list, itemDestination, itemPosition, 1);
}
#endif /* CFG_ALL_LIST_FUNCTIONS */
/*******************************/
#if defined(CFG_ALL_LIST_FUNCTIONS) || defined(CFG_DEVICE_DEREGISTER)
void ListRemoveItem (list_t list, void *itemDestination, int itemPosition)
{
ListRemoveItems (list, itemDestination, itemPosition, 1);
}
/*******************************/
void ListRemoveItems (list_t list, void *itemsDestination,
int firstItemPosition, int numItemsToRemove)
{
int firstItemAfterChunk, numToMove;
if (firstItemPosition == LIST_START)
firstItemPosition = 1;
else if (firstItemPosition == LIST_END)
firstItemPosition = (*list)->numItems;
if (itemsDestination != NULL)
memcpy (itemsDestination, ITEMPTR (list, firstItemPosition - 1),
(*list)->itemSize * numItemsToRemove);
firstItemAfterChunk = firstItemPosition + numItemsToRemove;
numToMove = (*list)->numItems - (firstItemAfterChunk - 1);
if (numToMove > 0) {
/*
* move part of list down to cover hole left by removed item
*/
memmove (ITEMPTR (list, firstItemPosition - 1),
ITEMPTR (list, firstItemAfterChunk - 1),
(*list)->itemSize * numToMove);
}
(*list)->numItems -= numItemsToRemove;
}
#endif /* CFG_ALL_LIST_FUNCTIONS || CFG_DEVICE_DEREGISTER */
/*******************************/
void ListGetItems (list_t list, void *itemsDestination,
int firstItemPosition, int numItemsToGet)
{
if (firstItemPosition == LIST_START)
firstItemPosition = 1;
else if (firstItemPosition == LIST_END)
firstItemPosition = (*list)->numItems;
memcpy (itemsDestination,
ITEMPTR (list, firstItemPosition - 1),
(*list)->itemSize * numItemsToGet);
}
/*******************************/
/*
* Returns a pointer to the item at itemPosition. returns null if an
* errors occurred.
*/
void *ListGetPtrToItem (list_t list, int itemPosition)
{
if (itemPosition == LIST_START)
itemPosition = 1;
else if (itemPosition == LIST_END)
itemPosition = (*list)->numItems;
return ITEMPTR (list, itemPosition - 1);
}
/*******************************/
/*
* returns a pointer the lists data (abstraction violation for
* optimization)
*/
void *ListGetDataPtr (list_t list)
{
return &((*list)->itemList[0]);
}
/********************************/
#ifdef CFG_ALL_LIST_FUNCTIONS
int ListApplyToEach (list_t list, int ascending,
ListApplicationFunc funcToApply,
void *callbackData)
{
int result = 0, index;
if (!list || !funcToApply)
goto Error;
if (ascending) {
for (index = 1; index <= ListNumItems (list); index++) {
result = funcToApply (index,
ListGetPtrToItem (list, index),
callbackData);
if (result < 0)
goto Error;
}
} else {
for (index = ListNumItems (list);
index > 0 && index <= ListNumItems (list);
index--) {
result = funcToApply (index,
ListGetPtrToItem (list, index),
callbackData);
if (result < 0)
goto Error;
}
}
Error:
return result;
}
#endif /* CFG_ALL_LIST_FUNCTIONS */
/********************************/
int ListGetItemSize (list_t list)
{
return (*list)->itemSize;
}
/********************************/
int ListNumItems (list_t list)
{
return (*list)->numItems;
}
/*******************************/
#ifdef CFG_ALL_LIST_FUNCTIONS
void ListRemoveDuplicates (list_t list, CompareFunction compareFunction)
{
int numItems, index, startIndexForFind, duplicatesIndex;
numItems = ListNumItems (list);
for (index = 1; index < numItems; index++) {
startIndexForFind = index + 1;
while (startIndexForFind <= numItems) {
duplicatesIndex =
ListFindItem (list,
ListGetPtrToItem (list, index),
startIndexForFind,
compareFunction);
if (duplicatesIndex > 0) {
ListRemoveItem (list, NULL, duplicatesIndex);
numItems--;
startIndexForFind = duplicatesIndex;
} else {
break;
}
}
}
}
/*******************************/
/*******************************/
int ListFindItem (list_t list, void *ptrToItem, int startingPosition,
CompareFunction compareFunction)
{
int numItems, size, index, cmp;
void *listItemPtr;
if ((numItems = (*list)->numItems) == 0)
return 0;
size = (*list)->itemSize;
if (startingPosition == LIST_START)
startingPosition = 1;
else if (startingPosition == LIST_END)
startingPosition = numItems;
for (index = startingPosition; index <= numItems; index++) {
listItemPtr = ITEMPTR (list, index - 1);
cmp = compareFunction
? compareFunction (ptrToItem, listItemPtr)
: ListMemBlockCmp (ptrToItem, listItemPtr, size);
if (cmp == 0)
return index;
}
return 0;
}
/*******************************/
int ShortCompare (void *a, void *b)
{
if (*(short *) a < *(short *) b)
return -1;
if (*(short *) a > *(short *) b)
return 1;
return 0;
}
/*******************************/
int IntCompare (void *a, void *b)
{
if (*(int *) a < *(int *) b)
return -1;
if (*(int *) a > *(int *) b)
return 1;
return 0;
}
/*******************************/
int CStringCompare (void *a, void *b)
{
return strcmp (*(char **) a, *(char **) b);
}
/*******************************/
int ListBinSearch (list_t list, void *ptrToItem,
CompareFunction compareFunction)
{
int index;
index = BinSearch (ITEMPTR (list, 0),
(int) (*list)->numItems,
(int) (*list)->itemSize, ptrToItem,
compareFunction);
if (index >= 0)
index++; /* lists start from 1 */
else
index = 0; /* item not found */
return index;
}
/**************************************************************************/
/*
* Reserves memory for numItems in the list. If it succeeds then
* numItems items can be inserted without possibility of an out of
* memory error (useful to simplify error recovery in complex
* functions). Returns 1 if success, 0 if out of memory.
*/
int ListPreAllocate (list_t list, int numItems)
{
if ((*list)->listSize - (*list)->numItems < numItems) {
return ExpandListSpace (list,
numItems - ((*list)->listSize -
(*list)->numItems));
} else {
return 1; /* enough items are already pre-allocated */
}
}
#endif /* CFG_ALL_LIST_FUNCTIONS */

14
common/usb_kbd.c
View file

@ -152,7 +152,7 @@ static int usb_kbd_probe(struct usb_device *dev, unsigned int ifnum);
/* search for keyboard and register it if found */
int drv_usb_kbd_init(void)
{
int error,i,index;
int error,i;
device_t usb_kbd_dev,*old_dev;
struct usb_device *dev;
char *stdinname = getenv ("stdin");
@ -166,13 +166,11 @@ int drv_usb_kbd_init(void)
if(usb_kbd_probe(dev,0)==1) { /* Ok, we found a keyboard */
/* check, if it is already registered */
USB_KBD_PRINTF("USB KBD found set up device.\n");
for (index=1; index<=ListNumItems(devlist); index++) {
old_dev = ListGetPtrToItem(devlist, index);
if(strcmp(old_dev->name,DEVNAME)==0) {
/* ok, already registered, just return ok */
USB_KBD_PRINTF("USB KBD is already registered.\n");
return 1;
}
old_dev = device_get_by_name(DEVNAME);
if(old_dev) {
/* ok, already registered, just return ok */
USB_KBD_PRINTF("USB KBD is already registered.\n");
return 1;
}
/* register the keyboard */
USB_KBD_PRINTF("USB KBD register.\n");

8
include/devices.h
View file

@ -21,7 +21,7 @@
* MA 02111-1307 USA
*/
#include <lists.h>
#include <linux/list.h>
#ifndef _DEVICES_H_
#define _DEVICES_H_
@ -59,6 +59,7 @@ typedef struct {
/* Other functions */
void *priv; /* Private extensions */
struct list_head list;
} device_t;
/*
@ -82,7 +83,6 @@ typedef struct {
/*
* VARIABLES
*/
extern list_t devlist;
extern device_t *stdio_devices[];
extern char *stdio_names[MAX_FILES];
@ -91,8 +91,10 @@ extern char *stdio_names[MAX_FILES];
*/
int device_register (device_t * dev);
int devices_init (void);
int devices_done (void);
int device_deregister(char *devname);
struct list_head* device_get_list(void);
device_t* device_get_by_name(char* name);
#ifdef CONFIG_LCD
int drv_lcd_init (void);
#endif

77
include/lists.h
View file

@ -1,77 +0,0 @@
#ifndef _LISTS_H_
#define _LISTS_H_
#define LIST_START -1 /* Handy Constants that substitute for item positions */
#define LIST_END 0 /* END_OF_LIST means one past current length of list when */
/* inserting. Otherwise it refers the last item in the list. */
typedef struct
{
void *ptr;
unsigned int size;
} HandleRecord;
typedef void **Handle;
typedef int (*CompareFunction)(void *data1, void *data2) ;
typedef struct ListStructTag
{
int signature; /* debugging aid */
int percentIncrease; /* %of current size to increase by when list is out of space */
int minNumItemsIncrease; /* fixed number of items to increase by when list is out of space */
int listSize; /* number of items than can fit in the currently allocated memory */
int itemSize; /* the size of each item in the list (same for every item) */
int numItems; /* number of items currently in the list */
unsigned char itemList[1]; /* resizable array of list elements */
} ListStruct;
typedef struct ListStructTag **list_t; /* The list abstract data type */
typedef int ( * ListApplicationFunc)(int index, void *ptrToItem, void *callbackData);
/* Basic List Operations */
list_t ListCreate(int elementSize);
int ListNumItems(list_t list);
int ListInsertItem(list_t list, void *ptrToItem, int itemPosition);
int ListInsertItems(list_t list, void *ptrToItems, int firstItemPosition, int numItemsToInsert);
void ListDispose(list_t list);
void *ListGetPtrToItem(list_t list, int itemPosition);
void ListRemoveItem(list_t list, void *itemDestination, int itemPosition);
void ListRemoveItems(list_t list, void *itemsDestination, int firstItemPosition, int numItemsToRemove);
#if 0 /* rarely ever used; kept here for reference just in case ... */
void ListDisposePtrList(list_t list);
void ListGetItem(list_t list, void *itemDestination, int itemPosition);
void ListReplaceItem(list_t list, void *ptrToItem, int itemPosition);
void ListRemoveItem(list_t list, void *itemDestination, int itemPosition);
void ListGetItems(list_t list, void *itemsDestination, int firstItemPosition, int numItemsToGet);
void ListReplaceItems(list_t list, void *ptrToItems, int firstItemPosition, int numItemsToReplace);
void ListRemoveItems(list_t list, void *itemsDestination, int firstItemPosition, int numItemsToRemove);
list_t ListCopy(list_t originalList);
int ListAppend(list_t list1, list_t list2);
void ListClear(list_t list);
int ListEqual(list_t list1, list_t list2);
int ListInsertInOrder(list_t list, void *ptrToItem, CompareFunction compareFunction);
void *ListGetDataPtr(list_t list);
int ListApplyToEach(list_t list, int ascending, ListApplicationFunc funcToApply, void *callbackData);
/* List Searching and Sorting */
int ListFindItem(list_t list, void *ptrToItem, int startingPosition, CompareFunction compareFunction);
void ListRemoveDuplicates(list_t list, CompareFunction compareFunction);
int ListBinSearch(list_t list, void *itemPtr, CompareFunction compareFunction);
void ListQuickSort(list_t list, CompareFunction compareFunction);
void ListHeapSort(list_t list, CompareFunction compareFunction);
void ListInsertionSort(list_t list, CompareFunction compareFunction);
int ListIsSorted(list_t list, CompareFunction compareFunction);
/* Advanced List Functions */
void ListSetAllocationPolicy(list_t list, int minItemsPerAlloc, int percentIncreasePerAlloc);
void ListCompact(list_t list);
int ListPreAllocate(list_t list, int numItems);
int ListGetItemSize(list_t list);
int GetIntListFromParmInfo(va_list parmInfo, int numIntegers, list_t *integerList);
int ListInsertAfterItem(list_t list, void *ptrToItem, void *ptrToItemToInsertAfter, CompareFunction compareFunction);
int ListInsertBeforeItem(list_t list, void *ptrToItem, void *ptrToItemToInsertBefore, CompareFunction compareFunction);
#endif /* 0 */
#endif /* _LISTS_H_ */