mirror of
https://github.com/Mange/rtl8192eu-linux-driver
synced 2024-11-24 06:25:02 +00:00
123 lines
2.8 KiB
C
123 lines
2.8 KiB
C
|
|
#include <drv_types.h>
|
|
#include <rtw_mem.h>
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("Realtek Wireless Lan Driver");
|
|
MODULE_AUTHOR("Realtek Semiconductor Corp.");
|
|
MODULE_VERSION("DRIVERVERSION");
|
|
|
|
struct sk_buff_head rtk_skb_mem_q;
|
|
struct u8* rtk_buf_mem[NR_RECVBUFF];
|
|
|
|
struct u8 * rtw_get_buf_premem(int index)
|
|
{
|
|
printk("%s, rtk_buf_mem index : %d\n", __func__, index);
|
|
return rtk_buf_mem[index];
|
|
}
|
|
|
|
u16 rtw_rtkm_get_buff_size(void)
|
|
{
|
|
return MAX_RTKM_RECVBUF_SZ;
|
|
}
|
|
EXPORT_SYMBOL(rtw_rtkm_get_buff_size);
|
|
|
|
u8 rtw_rtkm_get_nr_recv_skb(void)
|
|
{
|
|
return MAX_RTKM_NR_PREALLOC_RECV_SKB;
|
|
}
|
|
EXPORT_SYMBOL(rtw_rtkm_get_nr_recv_skb);
|
|
|
|
struct sk_buff *rtw_alloc_skb_premem(u16 in_size)
|
|
{
|
|
struct sk_buff *skb = NULL;
|
|
|
|
if (in_size > MAX_RTKM_RECVBUF_SZ) {
|
|
pr_info("warning %s: driver buffer size(%d) > rtkm buffer size(%d)\n", __func__, in_size, MAX_RTKM_RECVBUF_SZ);
|
|
WARN_ON(1);
|
|
return skb;
|
|
}
|
|
|
|
skb = skb_dequeue(&rtk_skb_mem_q);
|
|
|
|
printk("%s, rtk_skb_mem_q len : %d\n", __func__, skb_queue_len(&rtk_skb_mem_q));
|
|
|
|
return skb;
|
|
}
|
|
EXPORT_SYMBOL(rtw_alloc_skb_premem);
|
|
|
|
int rtw_free_skb_premem(struct sk_buff *pskb)
|
|
{
|
|
if(!pskb)
|
|
return -1;
|
|
|
|
if (skb_queue_len(&rtk_skb_mem_q) >= MAX_RTKM_NR_PREALLOC_RECV_SKB)
|
|
return -1;
|
|
|
|
skb_queue_tail(&rtk_skb_mem_q, pskb);
|
|
|
|
printk("%s, rtk_skb_mem_q len : %d\n", __func__, skb_queue_len(&rtk_skb_mem_q));
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(rtw_free_skb_premem);
|
|
|
|
static int __init rtw_mem_init(void)
|
|
{
|
|
int i;
|
|
SIZE_PTR tmpaddr=0;
|
|
SIZE_PTR alignment=0;
|
|
struct sk_buff *pskb=NULL;
|
|
|
|
printk("%s\n", __func__);
|
|
pr_info("MAX_RTKM_NR_PREALLOC_RECV_SKB: %d\n", MAX_RTKM_NR_PREALLOC_RECV_SKB);
|
|
pr_info("MAX_RTKM_RECVBUF_SZ: %d\n", MAX_RTKM_RECVBUF_SZ);
|
|
|
|
#ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
|
|
for(i=0; i<NR_RECVBUFF; i++)
|
|
|
|
{
|
|
|
|
rtk_buf_mem[i] = usb_buffer_alloc(dev, size, (in_interrupt() ? GFP_ATOMIC : GFP_KERNEL), dma);
|
|
}
|
|
#endif //CONFIG_USE_USB_BUFFER_ALLOC_RX
|
|
|
|
skb_queue_head_init(&rtk_skb_mem_q);
|
|
|
|
for(i=0; i<MAX_RTKM_NR_PREALLOC_RECV_SKB; i++)
|
|
{
|
|
pskb = __dev_alloc_skb(MAX_RTKM_RECVBUF_SZ + RECVBUFF_ALIGN_SZ, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
|
|
if(pskb)
|
|
{
|
|
tmpaddr = (SIZE_PTR)pskb->data;
|
|
alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
|
|
skb_reserve(pskb, (RECVBUFF_ALIGN_SZ - alignment));
|
|
|
|
skb_queue_tail(&rtk_skb_mem_q, pskb);
|
|
}
|
|
else
|
|
{
|
|
printk("%s, alloc skb memory fail!\n", __func__);
|
|
}
|
|
|
|
pskb=NULL;
|
|
}
|
|
|
|
printk("%s, rtk_skb_mem_q len : %d\n", __func__, skb_queue_len(&rtk_skb_mem_q));
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
static void __exit rtw_mem_exit(void)
|
|
{
|
|
if (skb_queue_len(&rtk_skb_mem_q)) {
|
|
printk("%s, rtk_skb_mem_q len : %d\n", __func__, skb_queue_len(&rtk_skb_mem_q));
|
|
}
|
|
|
|
skb_queue_purge(&rtk_skb_mem_q);
|
|
|
|
printk("%s\n", __func__);
|
|
}
|
|
|
|
module_init(rtw_mem_init);
|
|
module_exit(rtw_mem_exit);
|