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rtl8188EUS: Initial addition of files in branch v5.2.2.4

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Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
This commit is contained in:
Larry Finger 2018-10-14 19:07:45 -05:00
parent 77471b4361
commit 6fa9ed423c
541 changed files with 393757 additions and 85553 deletions
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114
core/rtw_mem.c Normal file
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#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);