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gnab-rtl8812au/os_dep/osdep_service.c

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2013-11-19 20:24:49 +00:00
/******************************************************************************
*
* Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
*
******************************************************************************/
#define _OSDEP_SERVICE_C_
#include <drv_types.h>
#define RT_TAG '1178'
#ifdef DBG_MEMORY_LEAK
#ifdef PLATFORM_LINUX
atomic_t _malloc_cnt = ATOMIC_INIT(0);
atomic_t _malloc_size = ATOMIC_INIT(0);
#endif
#endif /* DBG_MEMORY_LEAK */
#if defined(PLATFORM_LINUX)
/*
* Translate the OS dependent @param error_code to OS independent RTW_STATUS_CODE
* @return: one of RTW_STATUS_CODE
*/
inline int RTW_STATUS_CODE(int error_code){
if(error_code >=0)
return _SUCCESS;
switch(error_code) {
//case -ETIMEDOUT:
// return RTW_STATUS_TIMEDOUT;
default:
return _FAIL;
}
}
#else
inline int RTW_STATUS_CODE(int error_code){
return error_code;
}
#endif
u32 rtw_atoi(u8* s)
{
int num=0,flag=0;
int i;
for(i=0;i<=strlen(s);i++)
{
if(s[i] >= '0' && s[i] <= '9')
num = num * 10 + s[i] -'0';
else if(s[0] == '-' && i==0)
flag =1;
else
break;
}
if(flag == 1)
num = num * -1;
return(num);
}
inline u8* _rtw_vmalloc(u32 sz)
{
u8 *pbuf;
#ifdef PLATFORM_LINUX
pbuf = vmalloc(sz);
#endif
#ifdef PLATFORM_FREEBSD
pbuf = malloc(sz,M_DEVBUF,M_NOWAIT);
#endif
#ifdef PLATFORM_WINDOWS
NdisAllocateMemoryWithTag(&pbuf,sz, RT_TAG);
#endif
#ifdef DBG_MEMORY_LEAK
#ifdef PLATFORM_LINUX
if ( pbuf != NULL) {
atomic_inc(&_malloc_cnt);
atomic_add(sz, &_malloc_size);
}
#endif
#endif /* DBG_MEMORY_LEAK */
return pbuf;
}
inline u8* _rtw_zvmalloc(u32 sz)
{
u8 *pbuf;
#ifdef PLATFORM_LINUX
pbuf = _rtw_vmalloc(sz);
if (pbuf != NULL)
memset(pbuf, 0, sz);
#endif
#ifdef PLATFORM_FREEBSD
pbuf = malloc(sz,M_DEVBUF,M_ZERO|M_NOWAIT);
#endif
#ifdef PLATFORM_WINDOWS
NdisAllocateMemoryWithTag(&pbuf,sz, RT_TAG);
if (pbuf != NULL)
NdisFillMemory(pbuf, sz, 0);
#endif
return pbuf;
}
inline void _rtw_vmfree(u8 *pbuf, u32 sz)
{
#ifdef PLATFORM_LINUX
vfree(pbuf);
#endif
#ifdef PLATFORM_FREEBSD
free(pbuf,M_DEVBUF);
#endif
#ifdef PLATFORM_WINDOWS
NdisFreeMemory(pbuf,sz, 0);
#endif
#ifdef DBG_MEMORY_LEAK
#ifdef PLATFORM_LINUX
atomic_dec(&_malloc_cnt);
atomic_sub(sz, &_malloc_size);
#endif
#endif /* DBG_MEMORY_LEAK */
}
u8* _rtw_malloc(u32 sz)
{
u8 *pbuf=NULL;
#ifdef PLATFORM_LINUX
#ifdef RTK_DMP_PLATFORM
if(sz > 0x4000)
pbuf = (u8 *)dvr_malloc(sz);
else
#endif
pbuf = kmalloc(sz,in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
#endif
#ifdef PLATFORM_FREEBSD
pbuf = malloc(sz,M_DEVBUF,M_NOWAIT);
#endif
#ifdef PLATFORM_WINDOWS
NdisAllocateMemoryWithTag(&pbuf,sz, RT_TAG);
#endif
#ifdef DBG_MEMORY_LEAK
#ifdef PLATFORM_LINUX
if ( pbuf != NULL) {
atomic_inc(&_malloc_cnt);
atomic_add(sz, &_malloc_size);
}
#endif
#endif /* DBG_MEMORY_LEAK */
return pbuf;
}
u8* _rtw_zmalloc(u32 sz)
{
#ifdef PLATFORM_FREEBSD
return malloc(sz,M_DEVBUF,M_ZERO|M_NOWAIT);
#else // PLATFORM_FREEBSD
u8 *pbuf = _rtw_malloc(sz);
if (pbuf != NULL) {
#ifdef PLATFORM_LINUX
memset(pbuf, 0, sz);
#endif
#ifdef PLATFORM_WINDOWS
NdisFillMemory(pbuf, sz, 0);
#endif
}
return pbuf;
#endif // PLATFORM_FREEBSD
}
void _rtw_mfree(u8 *pbuf, u32 sz)
{
#ifdef PLATFORM_LINUX
#ifdef RTK_DMP_PLATFORM
if(sz > 0x4000)
dvr_free(pbuf);
else
#endif
kfree(pbuf);
#endif
#ifdef PLATFORM_FREEBSD
free(pbuf,M_DEVBUF);
#endif
#ifdef PLATFORM_WINDOWS
NdisFreeMemory(pbuf,sz, 0);
#endif
#ifdef DBG_MEMORY_LEAK
#ifdef PLATFORM_LINUX
atomic_dec(&_malloc_cnt);
atomic_sub(sz, &_malloc_size);
#endif
#endif /* DBG_MEMORY_LEAK */
}
#ifdef DBG_MEM_ALLOC
struct rtw_dbg_mem_stat {
ATOMIC_T vir_alloc; // the memory bytes we allocate now
ATOMIC_T vir_peak; // the peak memory bytes we allocate
ATOMIC_T vir_alloc_err; // the error times we fail to allocate memory
ATOMIC_T phy_alloc;
ATOMIC_T phy_peak;
ATOMIC_T phy_alloc_err;
ATOMIC_T tx_alloc;
ATOMIC_T tx_peak;
ATOMIC_T tx_alloc_err;
ATOMIC_T rx_alloc;
ATOMIC_T rx_peak;
ATOMIC_T rx_alloc_err;
} rtw_dbg_mem_stat;
void rtw_dump_mem_stat (void)
{
int vir_alloc, vir_peak, vir_alloc_err, phy_alloc, phy_peak, phy_alloc_err;
int tx_alloc, tx_peak, tx_alloc_err, rx_alloc, rx_peak, rx_alloc_err;
vir_alloc=ATOMIC_READ(&rtw_dbg_mem_stat.vir_alloc);
vir_peak=ATOMIC_READ(&rtw_dbg_mem_stat.vir_peak);
vir_alloc_err=ATOMIC_READ(&rtw_dbg_mem_stat.vir_alloc_err);
phy_alloc=ATOMIC_READ(&rtw_dbg_mem_stat.phy_alloc);
phy_peak=ATOMIC_READ(&rtw_dbg_mem_stat.phy_peak);
phy_alloc_err=ATOMIC_READ(&rtw_dbg_mem_stat.phy_alloc_err);
tx_alloc=ATOMIC_READ(&rtw_dbg_mem_stat.tx_alloc);
tx_peak=ATOMIC_READ(&rtw_dbg_mem_stat.tx_peak);
tx_alloc_err=ATOMIC_READ(&rtw_dbg_mem_stat.tx_alloc_err);
rx_alloc=ATOMIC_READ(&rtw_dbg_mem_stat.rx_alloc);
rx_peak=ATOMIC_READ(&rtw_dbg_mem_stat.rx_peak);
rx_alloc_err=ATOMIC_READ(&rtw_dbg_mem_stat.rx_alloc_err);
DBG_871X( "vir_alloc:%d, vir_peak:%d, vir_alloc_err:%d\n"
"phy_alloc:%d, phy_peak:%d, phy_alloc_err:%d\n"
"tx_alloc:%d, tx_peak:%d, tx_alloc_err:%d\n"
"rx_alloc:%d, rx_peak:%d, rx_alloc_err:%d\n"
, vir_alloc, vir_peak, vir_alloc_err
, phy_alloc, phy_peak, phy_alloc_err
, tx_alloc, tx_peak, tx_alloc_err
, rx_alloc, rx_peak, rx_alloc_err
);
}
void rtw_update_mem_stat(u8 flag, u32 sz)
{
static u32 update_time = 0;
int peak, alloc;
if(!update_time) {
ATOMIC_SET(&rtw_dbg_mem_stat.vir_alloc,0);
ATOMIC_SET(&rtw_dbg_mem_stat.vir_peak,0);
ATOMIC_SET(&rtw_dbg_mem_stat.vir_alloc_err,0);
ATOMIC_SET(&rtw_dbg_mem_stat.phy_alloc,0);
ATOMIC_SET(&rtw_dbg_mem_stat.phy_peak,0);
ATOMIC_SET(&rtw_dbg_mem_stat.phy_alloc_err,0);
}
switch(flag) {
case MEM_STAT_VIR_ALLOC_SUCCESS:
alloc = ATOMIC_ADD_RETURN(&rtw_dbg_mem_stat.vir_alloc, sz);
peak=ATOMIC_READ(&rtw_dbg_mem_stat.vir_peak);
if (peak<alloc)
ATOMIC_SET(&rtw_dbg_mem_stat.vir_peak, alloc);
break;
case MEM_STAT_VIR_ALLOC_FAIL:
ATOMIC_INC(&rtw_dbg_mem_stat.vir_alloc_err);
break;
case MEM_STAT_VIR_FREE:
alloc = ATOMIC_SUB_RETURN(&rtw_dbg_mem_stat.vir_alloc, sz);
break;
case MEM_STAT_PHY_ALLOC_SUCCESS:
alloc = ATOMIC_ADD_RETURN(&rtw_dbg_mem_stat.phy_alloc, sz);
peak=ATOMIC_READ(&rtw_dbg_mem_stat.phy_peak);
if (peak<alloc)
ATOMIC_SET(&rtw_dbg_mem_stat.phy_peak, alloc);
break;
case MEM_STAT_PHY_ALLOC_FAIL:
ATOMIC_INC(&rtw_dbg_mem_stat.phy_alloc_err);
break;
case MEM_STAT_PHY_FREE:
alloc = ATOMIC_SUB_RETURN(&rtw_dbg_mem_stat.phy_alloc, sz);
break;
case MEM_STAT_TX_ALLOC_SUCCESS:
alloc = ATOMIC_ADD_RETURN(&rtw_dbg_mem_stat.tx_alloc, sz);
peak=ATOMIC_READ(&rtw_dbg_mem_stat.tx_peak);
if (peak<alloc)
ATOMIC_SET(&rtw_dbg_mem_stat.tx_peak, alloc);
break;
case MEM_STAT_TX_ALLOC_FAIL:
ATOMIC_INC(&rtw_dbg_mem_stat.tx_alloc_err);
break;
case MEM_STAT_TX_FREE:
alloc = ATOMIC_SUB_RETURN(&rtw_dbg_mem_stat.tx_alloc, sz);
break;
case MEM_STAT_RX_ALLOC_SUCCESS:
alloc = ATOMIC_ADD_RETURN(&rtw_dbg_mem_stat.rx_alloc, sz);
peak=ATOMIC_READ(&rtw_dbg_mem_stat.rx_peak);
if (peak<alloc)
ATOMIC_SET(&rtw_dbg_mem_stat.rx_peak, alloc);
break;
case MEM_STAT_RX_ALLOC_FAIL:
ATOMIC_INC(&rtw_dbg_mem_stat.rx_alloc_err);
break;
case MEM_STAT_RX_FREE:
alloc = ATOMIC_SUB_RETURN(&rtw_dbg_mem_stat.rx_alloc, sz);
break;
};
if (rtw_get_passing_time_ms(update_time) > 5000) {
rtw_dump_mem_stat();
update_time=rtw_get_current_time();
}
}
inline u8* dbg_rtw_vmalloc(u32 sz, const char *func, int line)
{
u8 *p;
//DBG_871X("DBG_MEM_ALLOC %s:%d %s(%d)\n", func, line, __FUNCTION__, (sz));
p=_rtw_vmalloc((sz));
rtw_update_mem_stat(
p ? MEM_STAT_VIR_ALLOC_SUCCESS : MEM_STAT_VIR_ALLOC_FAIL
, sz
);
return p;
}
inline u8* dbg_rtw_zvmalloc(u32 sz, const char *func, int line)
{
u8 *p;
//DBG_871X("DBG_MEM_ALLOC %s:%d %s(%d)\n", func, line, __FUNCTION__, (sz));
p=_rtw_zvmalloc((sz));
rtw_update_mem_stat(
p ? MEM_STAT_VIR_ALLOC_SUCCESS : MEM_STAT_VIR_ALLOC_FAIL
, sz
);
return p;
}
inline void dbg_rtw_vmfree(u8 *pbuf, u32 sz, const char *func, int line)
{
//DBG_871X("DBG_MEM_ALLOC %s:%d %s(%p,%d)\n", func, line, __FUNCTION__, (pbuf), (sz));
_rtw_vmfree((pbuf), (sz));
rtw_update_mem_stat(
MEM_STAT_VIR_FREE
, sz
);
}
inline u8* dbg_rtw_malloc(u32 sz, const char *func, int line)
{
u8 *p;
if((sz)>4096)
DBG_871X("DBG_MEM_ALLOC !!!!!!!!!!!!!! %s:%d %s(%d)\n", func, line, __FUNCTION__, (sz));
p=_rtw_malloc((sz));
rtw_update_mem_stat(
p ? MEM_STAT_PHY_ALLOC_SUCCESS : MEM_STAT_PHY_ALLOC_FAIL
, sz
);
return p;
}
inline u8* dbg_rtw_zmalloc(u32 sz, const char *func, int line)
{
u8 *p;
if((sz)>4096)
DBG_871X("DBG_MEM_ALLOC !!!!!!!!!!!!!! %s:%d %s(%d)\n", func, line, __FUNCTION__, (sz));
p = _rtw_zmalloc((sz));
rtw_update_mem_stat(
p ? MEM_STAT_PHY_ALLOC_SUCCESS : MEM_STAT_PHY_ALLOC_FAIL
, sz
);
return p;
}
inline void dbg_rtw_mfree(u8 *pbuf, u32 sz, const char *func, int line)
{
if((sz)>4096)
DBG_871X("DBG_MEM_ALLOC !!!!!!!!!!!!!! %s:%d %s(%p,%d)\n", func, line, __FUNCTION__, (pbuf), (sz));
_rtw_mfree((pbuf), (sz));
rtw_update_mem_stat(
MEM_STAT_PHY_FREE
, sz
);
}
#endif
void* rtw_malloc2d(int h, int w, int size)
{
int j;
void **a = (void **) rtw_zmalloc( h*sizeof(void *) + h*w*size );
if(a == NULL)
{
DBG_871X("%s: alloc memory fail!\n", __FUNCTION__);
return NULL;
}
for( j=0; j<h; j++ )
a[j] = ((char *)(a+h)) + j*w*size;
return a;
}
void rtw_mfree2d(void *pbuf, int h, int w, int size)
{
rtw_mfree((u8 *)pbuf, h*sizeof(void*) + w*h*size);
}
void _rtw_memcpy(void* dst, void* src, u32 sz)
{
#if defined (PLATFORM_LINUX)|| defined (PLATFORM_FREEBSD)
memcpy(dst, src, sz);
#endif
#ifdef PLATFORM_WINDOWS
NdisMoveMemory(dst, src, sz);
#endif
}
int _rtw_memcmp(void *dst, void *src, u32 sz)
{
#if defined (PLATFORM_LINUX)|| defined (PLATFORM_FREEBSD)
//under Linux/GNU/GLibc, the return value of memcmp for two same mem. chunk is 0
if (!(memcmp(dst, src, sz)))
return _TRUE;
else
return _FALSE;
#endif
#ifdef PLATFORM_WINDOWS
//under Windows, the return value of NdisEqualMemory for two same mem. chunk is 1
if (NdisEqualMemory (dst, src, sz))
return _TRUE;
else
return _FALSE;
#endif
}
void _rtw_memset(void *pbuf, int c, u32 sz)
{
#if defined (PLATFORM_LINUX)|| defined (PLATFORM_FREEBSD)
memset(pbuf, c, sz);
#endif
#ifdef PLATFORM_WINDOWS
#if 0
NdisZeroMemory(pbuf, sz);
if (c != 0) memset(pbuf, c, sz);
#else
NdisFillMemory(pbuf, sz, c);
#endif
#endif
}
#ifdef PLATFORM_FREEBSD
static inline void __list_add(_list *pnew, _list *pprev, _list *pnext)
{
pnext->prev = pnew;
pnew->next = pnext;
pnew->prev = pprev;
pprev->next = pnew;
}
//review again
struct sk_buff * dev_alloc_skb(unsigned int size)
{
struct sk_buff *skb=NULL;
u8 *data=NULL;
//skb = (struct sk_buff *)_rtw_zmalloc(sizeof(struct sk_buff)); // for skb->len, etc.
skb = (struct sk_buff *)_rtw_malloc(sizeof(struct sk_buff));
if(!skb)
goto out;
data = _rtw_malloc(size);
if(!data)
goto nodata;
skb->head = (unsigned char*)data;
skb->data = (unsigned char*)data;
skb->tail = (unsigned char*)data;
skb->end = (unsigned char*)data + size;
skb->len = 0;
//printf("%s()-%d: skb=%p, skb->head = %p\n", __FUNCTION__, __LINE__, skb, skb->head);
out:
return skb;
nodata:
_rtw_mfree((u8 *)skb, sizeof(struct sk_buff));
skb = NULL;
goto out;
}
void dev_kfree_skb_any(struct sk_buff *skb)
{
//printf("%s()-%d: skb->head = %p\n", __FUNCTION__, __LINE__, skb->head);
if(skb->head)
_rtw_mfree(skb->head, 0);
//printf("%s()-%d: skb = %p\n", __FUNCTION__, __LINE__, skb);
if(skb)
_rtw_mfree((u8 *)skb, 0);
}
struct sk_buff *skb_clone(const struct sk_buff *skb)
{
return NULL;
}
#endif
void _rtw_init_listhead(_list *list)
{
#ifdef PLATFORM_LINUX
INIT_LIST_HEAD(list);
#endif
#ifdef PLATFORM_FREEBSD
list->next = list;
list->prev = list;
#endif
#ifdef PLATFORM_WINDOWS
NdisInitializeListHead(list);
#endif
}
/*
For the following list_xxx operations,
caller must guarantee the atomic context.
Otherwise, there will be racing condition.
*/
u32 rtw_is_list_empty(_list *phead)
{
#ifdef PLATFORM_LINUX
if (list_empty(phead))
return _TRUE;
else
return _FALSE;
#endif
#ifdef PLATFORM_FREEBSD
if (phead->next == phead)
return _TRUE;
else
return _FALSE;
#endif
#ifdef PLATFORM_WINDOWS
if (IsListEmpty(phead))
return _TRUE;
else
return _FALSE;
#endif
}
void rtw_list_insert_head(_list *plist, _list *phead)
{
#ifdef PLATFORM_LINUX
list_add(plist, phead);
#endif
#ifdef PLATFORM_FREEBSD
__list_add(plist, phead, phead->next);
#endif
#ifdef PLATFORM_WINDOWS
InsertHeadList(phead, plist);
#endif
}
void rtw_list_insert_tail(_list *plist, _list *phead)
{
#ifdef PLATFORM_LINUX
list_add_tail(plist, phead);
#endif
#ifdef PLATFORM_FREEBSD
__list_add(plist, phead->prev, phead);
#endif
#ifdef PLATFORM_WINDOWS
InsertTailList(phead, plist);
#endif
}
void rtw_init_timer(_timer *ptimer, void *padapter, void *pfunc)
{
_adapter *adapter = (_adapter *)padapter;
#ifdef PLATFORM_LINUX
_init_timer(ptimer, adapter->pnetdev, pfunc, adapter);
#endif
#ifdef PLATFORM_FREEBSD
_init_timer(ptimer, adapter->pifp, pfunc, adapter->mlmepriv.nic_hdl);
#endif
#ifdef PLATFORM_WINDOWS
_init_timer(ptimer, adapter->hndis_adapter, pfunc, adapter->mlmepriv.nic_hdl);
#endif
}
/*
Caller must check if the list is empty before calling rtw_list_delete
*/
void _rtw_init_sema(_sema *sema, int init_val)
{
#ifdef PLATFORM_LINUX
sema_init(sema, init_val);
#endif
#ifdef PLATFORM_FREEBSD
sema_init(sema, init_val, "rtw_drv");
#endif
#ifdef PLATFORM_OS_XP
KeInitializeSemaphore(sema, init_val, SEMA_UPBND); // count=0;
#endif
#ifdef PLATFORM_OS_CE
if(*sema == NULL)
*sema = CreateSemaphore(NULL, init_val, SEMA_UPBND, NULL);
#endif
}
void _rtw_free_sema(_sema *sema)
{
#ifdef PLATFORM_FREEBSD
sema_destroy(sema);
#endif
#ifdef PLATFORM_OS_CE
CloseHandle(*sema);
#endif
}
void _rtw_up_sema(_sema *sema)
{
#ifdef PLATFORM_LINUX
up(sema);
#endif
#ifdef PLATFORM_FREEBSD
sema_post(sema);
#endif
#ifdef PLATFORM_OS_XP
KeReleaseSemaphore(sema, IO_NETWORK_INCREMENT, 1, FALSE );
#endif
#ifdef PLATFORM_OS_CE
ReleaseSemaphore(*sema, 1, NULL );
#endif
}
u32 _rtw_down_sema(_sema *sema)
{
#ifdef PLATFORM_LINUX
if (down_interruptible(sema))
return _FAIL;
else
return _SUCCESS;
#endif
#ifdef PLATFORM_FREEBSD
sema_wait(sema);
return _SUCCESS;
#endif
#ifdef PLATFORM_OS_XP
if(STATUS_SUCCESS == KeWaitForSingleObject(sema, Executive, KernelMode, TRUE, NULL))
return _SUCCESS;
else
return _FAIL;
#endif
#ifdef PLATFORM_OS_CE
if(WAIT_OBJECT_0 == WaitForSingleObject(*sema, INFINITE ))
return _SUCCESS;
else
return _FAIL;
#endif
}
void _rtw_mutex_init(_mutex *pmutex)
{
#ifdef PLATFORM_LINUX
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
mutex_init(pmutex);
#else
init_MUTEX(pmutex);
#endif
#endif
#ifdef PLATFORM_FREEBSD
mtx_init(pmutex, "", NULL, MTX_DEF|MTX_RECURSE);
#endif
#ifdef PLATFORM_OS_XP
KeInitializeMutex(pmutex, 0);
#endif
#ifdef PLATFORM_OS_CE
*pmutex = CreateMutex( NULL, _FALSE, NULL);
#endif
}
void _rtw_mutex_free(_mutex *pmutex);
void _rtw_mutex_free(_mutex *pmutex)
{
#ifdef PLATFORM_LINUX
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
mutex_destroy(pmutex);
#else
#endif
#ifdef PLATFORM_FREEBSD
sema_destroy(pmutex);
#endif
#endif
#ifdef PLATFORM_OS_XP
#endif
#ifdef PLATFORM_OS_CE
#endif
}
void _rtw_spinlock_init(_lock *plock)
{
#ifdef PLATFORM_LINUX
spin_lock_init(plock);
#endif
#ifdef PLATFORM_FREEBSD
mtx_init(plock, "", NULL, MTX_DEF|MTX_RECURSE);
#endif
#ifdef PLATFORM_WINDOWS
NdisAllocateSpinLock(plock);
#endif
}
void _rtw_spinlock_free(_lock *plock)
{
#ifdef PLATFORM_FREEBSD
mtx_destroy(plock);
#endif
#ifdef PLATFORM_WINDOWS
NdisFreeSpinLock(plock);
#endif
}
#ifdef PLATFORM_FREEBSD
extern PADAPTER prtw_lock;
void rtw_mtx_lock(_lock *plock){
if(prtw_lock){
mtx_lock(&prtw_lock->glock);
}
else{
printf("%s prtw_lock==NULL",__FUNCTION__);
}
}
void rtw_mtx_unlock(_lock *plock){
if(prtw_lock){
mtx_unlock(&prtw_lock->glock);
}
else{
printf("%s prtw_lock==NULL",__FUNCTION__);
}
}
#endif //PLATFORM_FREEBSD
void _rtw_spinlock(_lock *plock)
{
#ifdef PLATFORM_LINUX
spin_lock(plock);
#endif
#ifdef PLATFORM_FREEBSD
mtx_lock(plock);
#endif
#ifdef PLATFORM_WINDOWS
NdisAcquireSpinLock(plock);
#endif
}
void _rtw_spinunlock(_lock *plock)
{
#ifdef PLATFORM_LINUX
spin_unlock(plock);
#endif
#ifdef PLATFORM_FREEBSD
mtx_unlock(plock);
#endif
#ifdef PLATFORM_WINDOWS
NdisReleaseSpinLock(plock);
#endif
}
void _rtw_spinlock_ex(_lock *plock)
{
#ifdef PLATFORM_LINUX
spin_lock(plock);
#endif
#ifdef PLATFORM_FREEBSD
mtx_lock(plock);
#endif
#ifdef PLATFORM_WINDOWS
NdisDprAcquireSpinLock(plock);
#endif
}
void _rtw_spinunlock_ex(_lock *plock)
{
#ifdef PLATFORM_LINUX
spin_unlock(plock);
#endif
#ifdef PLATFORM_FREEBSD
mtx_unlock(plock);
#endif
#ifdef PLATFORM_WINDOWS
NdisDprReleaseSpinLock(plock);
#endif
}
void _rtw_init_queue(_queue *pqueue)
{
_rtw_init_listhead(&(pqueue->queue));
_rtw_spinlock_init(&(pqueue->lock));
}
u32 _rtw_queue_empty(_queue *pqueue)
{
return (rtw_is_list_empty(&(pqueue->queue)));
}
u32 rtw_end_of_queue_search(_list *head, _list *plist)
{
if (head == plist)
return _TRUE;
else
return _FALSE;
}
u32 rtw_get_current_time(void)
{
#ifdef PLATFORM_LINUX
return jiffies;
#endif
#ifdef PLATFORM_FREEBSD
struct timeval tvp;
getmicrotime(&tvp);
return tvp.tv_sec;
#endif
#ifdef PLATFORM_WINDOWS
LARGE_INTEGER SystemTime;
NdisGetCurrentSystemTime(&SystemTime);
return (u32)(SystemTime.LowPart);// count of 100-nanosecond intervals
#endif
}
inline u32 rtw_systime_to_ms(u32 systime)
{
#ifdef PLATFORM_LINUX
return systime * 1000 / HZ;
#endif
#ifdef PLATFORM_FREEBSD
return systime * 1000;
#endif
#ifdef PLATFORM_WINDOWS
return systime / 10000 ;
#endif
}
inline u32 rtw_ms_to_systime(u32 ms)
{
#ifdef PLATFORM_LINUX
return ms * HZ / 1000;
#endif
#ifdef PLATFORM_FREEBSD
return ms /1000;
#endif
#ifdef PLATFORM_WINDOWS
return ms * 10000 ;
#endif
}
// the input parameter start use the same unit as returned by rtw_get_current_time
inline s32 rtw_get_passing_time_ms(u32 start)
{
#ifdef PLATFORM_LINUX
return rtw_systime_to_ms(jiffies-start);
#endif
#ifdef PLATFORM_FREEBSD
return rtw_systime_to_ms(rtw_get_current_time());
#endif
#ifdef PLATFORM_WINDOWS
LARGE_INTEGER SystemTime;
NdisGetCurrentSystemTime(&SystemTime);
return rtw_systime_to_ms((u32)(SystemTime.LowPart) - start) ;
#endif
}
inline s32 rtw_get_time_interval_ms(u32 start, u32 end)
{
#ifdef PLATFORM_LINUX
return rtw_systime_to_ms(end-start);
#endif
#ifdef PLATFORM_FREEBSD
return rtw_systime_to_ms(rtw_get_current_time());
#endif
#ifdef PLATFORM_WINDOWS
return rtw_systime_to_ms(end-start);
#endif
}
void rtw_sleep_schedulable(int ms)
{
#ifdef PLATFORM_LINUX
u32 delta;
delta = (ms * HZ)/1000;//(ms)
if (delta == 0) {
delta = 1;// 1 ms
}
set_current_state(TASK_INTERRUPTIBLE);
if (schedule_timeout(delta) != 0) {
return ;
}
return;
#endif
#ifdef PLATFORM_FREEBSD
DELAY(ms*1000);
return ;
#endif
#ifdef PLATFORM_WINDOWS
NdisMSleep(ms*1000); //(us)*1000=(ms)
#endif
}
void rtw_msleep_os(int ms)
{
#ifdef PLATFORM_LINUX
msleep((unsigned int)ms);
#endif
#ifdef PLATFORM_FREEBSD
//Delay for delay microseconds
DELAY(ms*1000);
return ;
#endif
#ifdef PLATFORM_WINDOWS
NdisMSleep(ms*1000); //(us)*1000=(ms)
#endif
}
void rtw_usleep_os(int us)
{
#ifdef PLATFORM_LINUX
// msleep((unsigned int)us);
if ( 1 < (us/1000) )
msleep(1);
else
msleep( (us/1000) + 1);
#endif
#ifdef PLATFORM_FREEBSD
//Delay for delay microseconds
DELAY(us);
return ;
#endif
#ifdef PLATFORM_WINDOWS
NdisMSleep(us); //(us)
#endif
}
#ifdef DBG_DELAY_OS
void _rtw_mdelay_os(int ms, const char *func, const int line)
{
#if 0
if(ms>10)
DBG_871X("%s:%d %s(%d)\n", func, line, __FUNCTION__, ms);
rtw_msleep_os(ms);
return;
#endif
DBG_871X("%s:%d %s(%d)\n", func, line, __FUNCTION__, ms);
#if defined(PLATFORM_LINUX)
mdelay((unsigned long)ms);
#elif defined(PLATFORM_WINDOWS)
NdisStallExecution(ms*1000); //(us)*1000=(ms)
#endif
}
void _rtw_udelay_os(int us, const char *func, const int line)
{
#if 0
if(us > 1000) {
DBG_871X("%s:%d %s(%d)\n", func, line, __FUNCTION__, us);
rtw_usleep_os(us);
return;
}
#endif
DBG_871X("%s:%d %s(%d)\n", func, line, __FUNCTION__, us);
#if defined(PLATFORM_LINUX)
udelay((unsigned long)us);
#elif defined(PLATFORM_WINDOWS)
NdisStallExecution(us); //(us)
#endif
}
#else
void rtw_mdelay_os(int ms)
{
#ifdef PLATFORM_LINUX
mdelay((unsigned long)ms);
#endif
#ifdef PLATFORM_FREEBSD
DELAY(ms*1000);
return ;
#endif
#ifdef PLATFORM_WINDOWS
NdisStallExecution(ms*1000); //(us)*1000=(ms)
#endif
}
void rtw_udelay_os(int us)
{
#ifdef PLATFORM_LINUX
udelay((unsigned long)us);
#endif
#ifdef PLATFORM_FREEBSD
//Delay for delay microseconds
DELAY(us);
return ;
#endif
#ifdef PLATFORM_WINDOWS
NdisStallExecution(us); //(us)
#endif
}
#endif
void rtw_yield_os()
{
#ifdef PLATFORM_LINUX
yield();
#endif
#ifdef PLATFORM_FREEBSD
yield();
#endif
#ifdef PLATFORM_WINDOWS
SwitchToThread();
#endif
}
#define RTW_SUSPEND_LOCK_NAME "rtw_wifi"
#ifdef CONFIG_WAKELOCK
static struct wake_lock rtw_suspend_lock;
#elif defined(CONFIG_ANDROID_POWER)
static android_suspend_lock_t rtw_suspend_lock ={
.name = RTW_SUSPEND_LOCK_NAME
};
#endif
inline void rtw_suspend_lock_init()
{
#ifdef CONFIG_WAKELOCK
wake_lock_init(&rtw_suspend_lock, WAKE_LOCK_SUSPEND, RTW_SUSPEND_LOCK_NAME);
#elif defined(CONFIG_ANDROID_POWER)
android_init_suspend_lock(&rtw_suspend_lock);
#endif
}
inline void rtw_suspend_lock_uninit()
{
#ifdef CONFIG_WAKELOCK
wake_lock_destroy(&rtw_suspend_lock);
#elif defined(CONFIG_ANDROID_POWER)
android_uninit_suspend_lock(&rtw_suspend_lock);
#endif
}
inline void rtw_lock_suspend()
{
#ifdef CONFIG_WAKELOCK
wake_lock(&rtw_suspend_lock);
#elif defined(CONFIG_ANDROID_POWER)
android_lock_suspend(&rtw_suspend_lock);
#endif
#if defined(CONFIG_WAKELOCK) || defined(CONFIG_ANDROID_POWER)
//DBG_871X("####%s: suspend_lock_count:%d####\n", __FUNCTION__, rtw_suspend_lock.stat.count);
#endif
}
inline void rtw_unlock_suspend()
{
#ifdef CONFIG_WAKELOCK
wake_unlock(&rtw_suspend_lock);
#elif defined(CONFIG_ANDROID_POWER)
android_unlock_suspend(&rtw_suspend_lock);
#endif
#if defined(CONFIG_WAKELOCK) || defined(CONFIG_ANDROID_POWER)
//DBG_871X("####%s: suspend_lock_count:%d####\n", __FUNCTION__, rtw_suspend_lock.stat.count);
#endif
}
#ifdef CONFIG_WOWLAN
inline void rtw_lock_suspend_timeout(long timeout)
{
#ifdef CONFIG_WAKELOCK
wake_lock_timeout(&rtw_suspend_lock, timeout);
#elif defined(CONFIG_ANDROID_POWER)
android_lock_suspend_auto_expire(&rtw_suspend_lock, timeout);
#endif
}
#endif //CONFIG_WOWLAN
inline void ATOMIC_SET(ATOMIC_T *v, int i)
{
#ifdef PLATFORM_LINUX
atomic_set(v,i);
#elif defined(PLATFORM_WINDOWS)
*v=i;// other choice????
#elif defined(PLATFORM_FREEBSD)
atomic_set_int(v,i);
#endif
}
inline int ATOMIC_READ(ATOMIC_T *v)
{
#ifdef PLATFORM_LINUX
return atomic_read(v);
#elif defined(PLATFORM_WINDOWS)
return *v; // other choice????
#elif defined(PLATFORM_FREEBSD)
return atomic_load_acq_32(v);
#endif
}
inline void ATOMIC_ADD(ATOMIC_T *v, int i)
{
#ifdef PLATFORM_LINUX
atomic_add(i,v);
#elif defined(PLATFORM_WINDOWS)
InterlockedAdd(v,i);
#elif defined(PLATFORM_FREEBSD)
atomic_add_int(v,i);
#endif
}
inline void ATOMIC_SUB(ATOMIC_T *v, int i)
{
#ifdef PLATFORM_LINUX
atomic_sub(i,v);
#elif defined(PLATFORM_WINDOWS)
InterlockedAdd(v,-i);
#elif defined(PLATFORM_FREEBSD)
atomic_subtract_int(v,i);
#endif
}
inline void ATOMIC_INC(ATOMIC_T *v)
{
#ifdef PLATFORM_LINUX
atomic_inc(v);
#elif defined(PLATFORM_WINDOWS)
InterlockedIncrement(v);
#elif defined(PLATFORM_FREEBSD)
atomic_add_int(v,1);
#endif
}
inline void ATOMIC_DEC(ATOMIC_T *v)
{
#ifdef PLATFORM_LINUX
atomic_dec(v);
#elif defined(PLATFORM_WINDOWS)
InterlockedDecrement(v);
#elif defined(PLATFORM_FREEBSD)
atomic_subtract_int(v,1);
#endif
}
inline int ATOMIC_ADD_RETURN(ATOMIC_T *v, int i)
{
#ifdef PLATFORM_LINUX
return atomic_add_return(i,v);
#elif defined(PLATFORM_WINDOWS)
return InterlockedAdd(v,i);
#elif defined(PLATFORM_FREEBSD)
atomic_add_int(v,i);
return atomic_load_acq_32(v);
#endif
}
inline int ATOMIC_SUB_RETURN(ATOMIC_T *v, int i)
{
#ifdef PLATFORM_LINUX
return atomic_sub_return(i,v);
#elif defined(PLATFORM_WINDOWS)
return InterlockedAdd(v,-i);
#elif defined(PLATFORM_FREEBSD)
atomic_subtract_int(v,i);
return atomic_load_acq_32(v);
#endif
}
inline int ATOMIC_INC_RETURN(ATOMIC_T *v)
{
#ifdef PLATFORM_LINUX
return atomic_inc_return(v);
#elif defined(PLATFORM_WINDOWS)
return InterlockedIncrement(v);
#elif defined(PLATFORM_FREEBSD)
atomic_add_int(v,1);
return atomic_load_acq_32(v);
#endif
}
inline int ATOMIC_DEC_RETURN(ATOMIC_T *v)
{
#ifdef PLATFORM_LINUX
return atomic_dec_return(v);
#elif defined(PLATFORM_WINDOWS)
return InterlockedDecrement(v);
#elif defined(PLATFORM_FREEBSD)
atomic_subtract_int(v,1);
return atomic_load_acq_32(v);
#endif
}
#ifdef PLATFORM_LINUX
/*
* Open a file with the specific @param path, @param flag, @param mode
* @param fpp the pointer of struct file pointer to get struct file pointer while file opening is success
* @param path the path of the file to open
* @param flag file operation flags, please refer to linux document
* @param mode please refer to linux document
* @return Linux specific error code
*/
static int openFile(struct file **fpp, char *path, int flag, int mode)
{
struct file *fp;
fp=filp_open(path, flag, mode);
if(IS_ERR(fp)) {
*fpp=NULL;
return PTR_ERR(fp);
}
else {
*fpp=fp;
return 0;
}
}
/*
* Close the file with the specific @param fp
* @param fp the pointer of struct file to close
* @return always 0
*/
static int closeFile(struct file *fp)
{
filp_close(fp,NULL);
return 0;
}
static int readFile(struct file *fp,char *buf,int len)
{
int rlen=0, sum=0;
if (!fp->f_op || !fp->f_op->read)
return -EPERM;
while(sum<len) {
rlen=fp->f_op->read(fp,buf+sum,len-sum, &fp->f_pos);
if(rlen>0)
sum+=rlen;
else if(0 != rlen)
return rlen;
else
break;
}
return sum;
}
static int writeFile(struct file *fp,char *buf,int len)
{
int wlen=0, sum=0;
if (!fp->f_op || !fp->f_op->write)
return -EPERM;
while(sum<len) {
wlen=fp->f_op->write(fp,buf+sum,len-sum, &fp->f_pos);
if(wlen>0)
sum+=wlen;
else if(0 != wlen)
return wlen;
else
break;
}
return sum;
}
/*
* Test if the specifi @param path is a file and readable
* @param path the path of the file to test
* @return Linux specific error code
*/
static int isFileReadable(char *path)
{
struct file *fp;
int ret = 0;
mm_segment_t oldfs;
char buf;
fp=filp_open(path, O_RDONLY, 0);
if(IS_ERR(fp)) {
ret = PTR_ERR(fp);
}
else {
oldfs = get_fs(); set_fs(get_ds());
if(1!=readFile(fp, &buf, 1))
ret = PTR_ERR(fp);
set_fs(oldfs);
filp_close(fp,NULL);
}
return ret;
}
/*
* Open the file with @param path and retrive the file content into memory starting from @param buf for @param sz at most
* @param path the path of the file to open and read
* @param buf the starting address of the buffer to store file content
* @param sz how many bytes to read at most
* @return the byte we've read, or Linux specific error code
*/
static int retriveFromFile(char *path, u8* buf, u32 sz)
{
int ret =-1;
mm_segment_t oldfs;
struct file *fp;
if(path && buf) {
if( 0 == (ret=openFile(&fp,path, O_RDONLY, 0)) ){
DBG_871X("%s openFile path:%s fp=%p\n",__FUNCTION__, path ,fp);
oldfs = get_fs(); set_fs(get_ds());
ret=readFile(fp, buf, sz);
set_fs(oldfs);
closeFile(fp);
DBG_871X("%s readFile, ret:%d\n",__FUNCTION__, ret);
} else {
DBG_871X("%s openFile path:%s Fail, ret:%d\n",__FUNCTION__, path, ret);
}
} else {
DBG_871X("%s NULL pointer\n",__FUNCTION__);
ret = -EINVAL;
}
return ret;
}
/*
* Open the file with @param path and wirte @param sz byte of data starting from @param buf into the file
* @param path the path of the file to open and write
* @param buf the starting address of the data to write into file
* @param sz how many bytes to write at most
* @return the byte we've written, or Linux specific error code
*/
static int storeToFile(char *path, u8* buf, u32 sz)
{
int ret =0;
mm_segment_t oldfs;
struct file *fp;
if(path && buf) {
if( 0 == (ret=openFile(&fp, path, O_CREAT|O_WRONLY, 0666)) ) {
DBG_871X("%s openFile path:%s fp=%p\n",__FUNCTION__, path ,fp);
oldfs = get_fs(); set_fs(get_ds());
ret=writeFile(fp, buf, sz);
set_fs(oldfs);
closeFile(fp);
DBG_871X("%s writeFile, ret:%d\n",__FUNCTION__, ret);
} else {
DBG_871X("%s openFile path:%s Fail, ret:%d\n",__FUNCTION__, path, ret);
}
} else {
DBG_871X("%s NULL pointer\n",__FUNCTION__);
ret = -EINVAL;
}
return ret;
}
#endif //PLATFORM_LINUX
/*
* Test if the specifi @param path is a file and readable
* @param path the path of the file to test
* @return _TRUE or _FALSE
*/
int rtw_is_file_readable(char *path)
{
#ifdef PLATFORM_LINUX
if(isFileReadable(path) == 0)
return _TRUE;
else
return _FALSE;
#else
//Todo...
return _FALSE;
#endif
}
/*
* Open the file with @param path and retrive the file content into memory starting from @param buf for @param sz at most
* @param path the path of the file to open and read
* @param buf the starting address of the buffer to store file content
* @param sz how many bytes to read at most
* @return the byte we've read
*/
int rtw_retrive_from_file(char *path, u8* buf, u32 sz)
{
#ifdef PLATFORM_LINUX
int ret =retriveFromFile(path, buf, sz);
return ret>=0?ret:0;
#else
//Todo...
return 0;
#endif
}
/*
* Open the file with @param path and wirte @param sz byte of data starting from @param buf into the file
* @param path the path of the file to open and write
* @param buf the starting address of the data to write into file
* @param sz how many bytes to write at most
* @return the byte we've written
*/
int rtw_store_to_file(char *path, u8* buf, u32 sz)
{
#ifdef PLATFORM_LINUX
int ret =storeToFile(path, buf, sz);
return ret>=0?ret:0;
#else
//Todo...
return 0;
#endif
}
#ifdef PLATFORM_LINUX
struct net_device *rtw_alloc_etherdev_with_old_priv(int sizeof_priv, void *old_priv)
{
struct net_device *pnetdev;
struct rtw_netdev_priv_indicator *pnpi;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
pnetdev = alloc_etherdev_mq(sizeof(struct rtw_netdev_priv_indicator), 4);
#else
pnetdev = alloc_etherdev(sizeof(struct rtw_netdev_priv_indicator));
#endif
if (!pnetdev)
goto RETURN;
pnpi = netdev_priv(pnetdev);
pnpi->priv=old_priv;
pnpi->sizeof_priv=sizeof_priv;
RETURN:
return pnetdev;
}
struct net_device *rtw_alloc_etherdev(int sizeof_priv)
{
struct net_device *pnetdev;
struct rtw_netdev_priv_indicator *pnpi;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
pnetdev = alloc_etherdev_mq(sizeof(struct rtw_netdev_priv_indicator), 4);
#else
pnetdev = alloc_etherdev(sizeof(struct rtw_netdev_priv_indicator));
#endif
if (!pnetdev)
goto RETURN;
pnpi = netdev_priv(pnetdev);
pnpi->priv = rtw_zvmalloc(sizeof_priv);
if (!pnpi->priv) {
free_netdev(pnetdev);
pnetdev = NULL;
goto RETURN;
}
pnpi->sizeof_priv=sizeof_priv;
RETURN:
return pnetdev;
}
void rtw_free_netdev(struct net_device * netdev)
{
struct rtw_netdev_priv_indicator *pnpi;
if(!netdev)
goto RETURN;
pnpi = netdev_priv(netdev);
if(!pnpi->priv)
goto RETURN;
rtw_vmfree(pnpi->priv, pnpi->sizeof_priv);
free_netdev(netdev);
RETURN:
return;
}
/*
* Jeff: this function should be called under ioctl (rtnl_lock is accquired) while
* LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)
*/
int rtw_change_ifname(_adapter *padapter, const char *ifname)
{
struct net_device *pnetdev;
struct net_device *cur_pnetdev = padapter->pnetdev;
struct rereg_nd_name_data *rereg_priv;
int ret;
if(!padapter)
goto error;
rereg_priv = &padapter->rereg_nd_name_priv;
//free the old_pnetdev
if(rereg_priv->old_pnetdev) {
free_netdev(rereg_priv->old_pnetdev);
rereg_priv->old_pnetdev = NULL;
}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26))
if(!rtnl_is_locked())
unregister_netdev(cur_pnetdev);
else
#endif
unregister_netdevice(cur_pnetdev);
rtw_proc_remove_one(cur_pnetdev);
rereg_priv->old_pnetdev=cur_pnetdev;
pnetdev = rtw_init_netdev(padapter);
if (!pnetdev) {
ret = -1;
goto error;
}
SET_NETDEV_DEV(pnetdev, dvobj_to_dev(adapter_to_dvobj(padapter)));
rtw_init_netdev_name(pnetdev, ifname);
_rtw_memcpy(pnetdev->dev_addr, padapter->eeprompriv.mac_addr, ETH_ALEN);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26))
if(!rtnl_is_locked())
ret = register_netdev(pnetdev);
else
#endif
ret = register_netdevice(pnetdev);
if ( ret != 0) {
RT_TRACE(_module_hci_intfs_c_,_drv_err_,("register_netdev() failed\n"));
goto error;
}
rtw_proc_init_one(pnetdev);
return 0;
error:
return -1;
}
#endif
#ifdef PLATFORM_FREEBSD
/*
* Copy a buffer from userspace and write into kernel address
* space.
*
* This emulation just calls the FreeBSD copyin function (to
* copy data from user space buffer into a kernel space buffer)
* and is designed to be used with the above io_write_wrapper.
*
* This function should return the number of bytes not copied.
* I.e. success results in a zero value.
* Negative error values are not returned.
*/
unsigned long
copy_from_user(void *to, const void *from, unsigned long n)
{
if ( copyin(from, to, n) != 0 ) {
/* Any errors will be treated as a failure
to copy any of the requested bytes */
return n;
}
return 0;
}
unsigned long
copy_to_user(void *to, const void *from, unsigned long n)
{
if ( copyout(from, to, n) != 0 ) {
/* Any errors will be treated as a failure
to copy any of the requested bytes */
return n;
}
return 0;
}
/*
* The usb_register and usb_deregister functions are used to register
* usb drivers with the usb subsystem. In this compatibility layer
* emulation a list of drivers (struct usb_driver) is maintained
* and is used for probing/attaching etc.
*
* usb_register and usb_deregister simply call these functions.
*/
int
usb_register(struct usb_driver *driver)
{
rtw_usb_linux_register(driver);
return 0;
}
int
usb_deregister(struct usb_driver *driver)
{
rtw_usb_linux_deregister(driver);
return 0;
}
void module_init_exit_wrapper(void *arg)
{
int (*func)(void) = arg;
func();
return;
}
#endif //PLATFORM_FREEBSD
#ifdef CONFIG_PLATFORM_SPRD
#ifdef do_div
#undef do_div
#endif
#include <asm-generic/div64.h>
#endif
u64 rtw_modular64(u64 x, u64 y)
{
#ifdef PLATFORM_LINUX
return do_div(x, y);
#elif defined(PLATFORM_WINDOWS)
return (x % y);
#elif defined(PLATFORM_FREEBSD)
return (x %y);
#endif
}
u64 rtw_division64(u64 x, u64 y)
{
#ifdef PLATFORM_LINUX
do_div(x, y);
return x;
#elif defined(PLATFORM_WINDOWS)
return (x / y);
#elif defined(PLATFORM_FREEBSD)
return (x / y);
#endif
}
void rtw_buf_free(u8 **buf, u32 *buf_len)
{
u32 ori_len;
if (!buf || !buf_len)
return;
ori_len = *buf_len;
if (*buf) {
*buf_len = 0;
_rtw_mfree(*buf, *buf_len);
*buf = NULL;
}
}
void rtw_buf_update(u8 **buf, u32 *buf_len, u8 *src, u32 src_len)
{
u32 ori_len = 0, dup_len = 0;
u8 *ori = NULL;
u8 *dup = NULL;
if (!buf || !buf_len)
return;
if (!src || !src_len)
goto keep_ori;
/* duplicate src */
dup = rtw_malloc(src_len);
if (dup) {
dup_len = src_len;
_rtw_memcpy(dup, src, dup_len);
}
keep_ori:
ori = *buf;
ori_len = *buf_len;
/* replace buf with dup */
*buf_len = 0;
*buf = dup;
*buf_len = dup_len;
/* free ori */
if (ori && ori_len > 0)
_rtw_mfree(ori, ori_len);
}
/**
* rtw_cbuf_full - test if cbuf is full
* @cbuf: pointer of struct rtw_cbuf
*
* Returns: _TRUE if cbuf is full
*/
inline bool rtw_cbuf_full(struct rtw_cbuf *cbuf)
{
return (cbuf->write == cbuf->read-1)? _TRUE : _FALSE;
}
/**
* rtw_cbuf_empty - test if cbuf is empty
* @cbuf: pointer of struct rtw_cbuf
*
* Returns: _TRUE if cbuf is empty
*/
inline bool rtw_cbuf_empty(struct rtw_cbuf *cbuf)
{
return (cbuf->write == cbuf->read)? _TRUE : _FALSE;
}
/**
* rtw_cbuf_push - push a pointer into cbuf
* @cbuf: pointer of struct rtw_cbuf
* @buf: pointer to push in
*
* Lock free operation, be careful of the use scheme
* Returns: _TRUE push success
*/
bool rtw_cbuf_push(struct rtw_cbuf *cbuf, void *buf)
{
if (rtw_cbuf_full(cbuf))
return _FAIL;
if (0)
DBG_871X("%s on %u\n", __func__, cbuf->write);
cbuf->bufs[cbuf->write] = buf;
cbuf->write = (cbuf->write+1)%cbuf->size;
return _SUCCESS;
}
/**
* rtw_cbuf_pop - pop a pointer from cbuf
* @cbuf: pointer of struct rtw_cbuf
*
* Lock free operation, be careful of the use scheme
* Returns: pointer popped out
*/
void *rtw_cbuf_pop(struct rtw_cbuf *cbuf)
{
void *buf;
if (rtw_cbuf_empty(cbuf))
return NULL;
if (0)
DBG_871X("%s on %u\n", __func__, cbuf->read);
buf = cbuf->bufs[cbuf->read];
cbuf->read = (cbuf->read+1)%cbuf->size;
return buf;
}
/**
* rtw_cbuf_alloc - allocte a rtw_cbuf with given size and do initialization
* @size: size of pointer
*
* Returns: pointer of srtuct rtw_cbuf, NULL for allocation failure
*/
struct rtw_cbuf *rtw_cbuf_alloc(u32 size)
{
struct rtw_cbuf *cbuf;
cbuf = (struct rtw_cbuf *)rtw_malloc(sizeof(*cbuf) + sizeof(void*)*size);
if (cbuf) {
cbuf->write = cbuf->read = 0;
cbuf->size = size;
}
return cbuf;
}
/**
* rtw_cbuf_free - free the given rtw_cbuf
* @cbuf: pointer of struct rtw_cbuf to free
*/
void rtw_cbuf_free(struct rtw_cbuf *cbuf)
{
rtw_mfree((u8*)cbuf, sizeof(*cbuf) + sizeof(void*)*cbuf->size);
}
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