Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / staging / rtl8188eu / os_dep / osdep_service.c

diff --git a/kernel/drivers/staging/rtl8188eu/os_dep/osdep_service.c b/kernel/drivers/staging/rtl8188eu/os_dep/osdep_service.c
new file mode 100644 (file)
index 0000000..abcb3a8
--- /dev/null
+++ b/kernel/drivers/staging/rtl8188eu/os_dep/osdep_service.c
@@ -0,0 +1,165 @@
+/******************************************************************************
+ *
+ * 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 <osdep_service.h>
+#include <osdep_intf.h>
+#include <drv_types.h>
+#include <recv_osdep.h>
+#include <linux/vmalloc.h>
+#include <rtw_ioctl_set.h>
+
+/*
+* 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;
+       return _FAIL;
+}
+
+u8 *_rtw_malloc(u32 sz)
+{
+       u8      *pbuf = NULL;
+
+       pbuf = kmalloc(sz, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
+       return pbuf;
+}
+
+void *rtw_malloc2d(int h, int w, int size)
+{
+       int j;
+
+       void **a = kzalloc(h*sizeof(void *) + h*w*size, GFP_KERNEL);
+       if (a == NULL) {
+               pr_info("%s: alloc memory fail!\n", __func__);
+               return NULL;
+       }
+
+       for (j = 0; j < h; j++)
+               a[j] = ((char *)(a+h)) + j*w*size;
+
+       return a;
+}
+
+u32 _rtw_down_sema(struct semaphore *sema)
+{
+       if (down_interruptible(sema))
+               return _FAIL;
+       else
+               return _SUCCESS;
+}
+
+void   _rtw_init_queue(struct __queue *pqueue)
+{
+       INIT_LIST_HEAD(&(pqueue->queue));
+       spin_lock_init(&(pqueue->lock));
+}
+
+/*  the input parameter start must be in jiffies */
+inline s32 rtw_get_passing_time_ms(u32 start)
+{
+       return jiffies_to_msecs(jiffies-start);
+}
+
+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;
+
+       pnetdev = alloc_etherdev_mq(sizeof(struct rtw_netdev_priv_indicator), 4);
+       if (!pnetdev)
+               goto RETURN;
+
+       pnpi = netdev_priv(pnetdev);
+       pnpi->priv = old_priv;
+       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;
+
+       vfree(pnpi->priv);
+       free_netdev(netdev);
+
+RETURN:
+       return;
+}
+
+u64 rtw_modular64(u64 x, u64 y)
+{
+       return do_div(x, y);
+}
+
+void rtw_buf_free(u8 **buf, u32 *buf_len)
+{
+       *buf_len = 0;
+       kfree(*buf);
+       *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;
+               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 */
+       kfree(ori);
+}