/* APIs visible to the driver */
void
BMIInit(void)
{
bmiDone = false;
pendingEventsFuncCheck = false;
/*
* On some platforms, it's not possible to DMA to a static variable
* in a device driver (e.g. Linux loadable driver module).
* So we need to A_MALLOC space for "command credits" and for commands.
*
* Note: implicitly relies on A_MALLOC to provide a buffer that is
* suitable for DMA (or PIO). This buffer will be passed down the
* bus stack.
*/
if (!pBMICmdCredits) {
pBMICmdCredits = (u32 *)A_MALLOC_NOWAIT(4);
A_ASSERT(pBMICmdCredits);
}
if (!pBMICmdBuf) {
pBMICmdBuf = (u8 *)A_MALLOC_NOWAIT(MAX_BMI_CMDBUF_SZ);
A_ASSERT(pBMICmdBuf);
}
A_REGISTER_MODULE_DEBUG_INFO(bmi);
}
/* Update the buffer alone, not the entire node.
* This involves,
* 1) Freeing the buffer alone.
* 2) Allocating a new buffer
* 3) Update the node timestamp with the current time.
*/
A_STATUS
wlan_node_buf_update(struct ieee80211_node_table *nt, bss_t *ni, A_UINT32 len)
{
IEEE80211_NODE_LOCK(nt);
/* Free the ni_buf alone.
*/
if (ni->ni_buf != NULL) {
A_FREE(ni->ni_buf);
ni->ni_buf = NULL;
}
/* Allocate ni_buf for the new length.
*/
if (len) {
ni->ni_buf = A_MALLOC_NOWAIT(len);
if (ni->ni_buf == NULL) {
IEEE80211_NODE_UNLOCK(nt);
return A_ERROR;
} else {
A_MEMZERO(ni->ni_buf, len);
}
}
/* Update the Node's timestamp.
*/
wlan_node_update_timestamp(nt, ni);
IEEE80211_NODE_UNLOCK(nt);
return A_OK;
}
bss_t *
wlan_node_alloc(struct ieee80211_node_table *nt, int wh_size)
{
bss_t *ni;
ni = A_MALLOC_NOWAIT(sizeof(bss_t));
count_node++;
if (ni != NULL) {
A_MEMZERO(ni, sizeof(bss_t));
if (wh_size)
{
ni->ni_buf = A_MALLOC_NOWAIT(wh_size);
if (ni->ni_buf == NULL) {
printk("Out of memory in ar6003 Driver with scan count at %d\n", count_node);
A_FREE_NOWAIT(ni);
ni = NULL;
return ni;
} else {
A_MEMZERO(ni->ni_buf, wh_size);
}
}
} else {
printk("Out of memory in ar6003 Driver with scan count at %d\n", count_node);
return ni;
}
/* Make sure our lists are clean */
ni->ni_list_next = NULL;
ni->ni_list_prev = NULL;
ni->ni_hash_next = NULL;
ni->ni_hash_prev = NULL;
//
// ni_scangen never initialized before and during suspend/resume of winmobile,
// that some junk has been stored in this, due to this scan list didn't properly updated
//
ni->ni_scangen = 0;
#ifdef OS_ROAM_MANAGEMENT
ni->ni_si_gen = 0;
#endif
return ni;
}
bss_t *
wlan_node_alloc(struct ieee80211_node_table *nt, int wh_size)
{
bss_t *ni;
ni = A_MALLOC_NOWAIT(sizeof(bss_t));
if (ni != NULL) {
if (wh_size)
{
ni->ni_buf = A_MALLOC_NOWAIT(wh_size);
if (ni->ni_buf == NULL) {
A_FREE(ni);
ni = NULL;
return ni;
}
}
} else {
return ni;
}
/* Make sure our lists are clean */
ni->ni_list_next = NULL;
ni->ni_list_prev = NULL;
ni->ni_hash_next = NULL;
ni->ni_hash_prev = NULL;
/* */
/* ni_scangen never initialized before and during suspend/resume of winmobile, */
/* that some junk has been stored in this, due to this scan list didn't properly updated */
/* */
ni->ni_scangen = 0;
#ifdef OS_ROAM_MANAGEMENT
ni->ni_si_gen = 0;
#endif
return ni;
}