// SPDX-License-Identifier: GPL-2.0
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/******************************************************************************
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*
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* Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
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*
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******************************************************************************/
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#define _OSDEP_SERVICE_C_
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#include <osdep_service.h>
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#include <osdep_intf.h>
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#include <drv_types.h>
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#include <recv_osdep.h>
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#include <linux/vmalloc.h>
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#include <rtw_ioctl_set.h>
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u8 *_rtw_malloc(u32 sz)
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{
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return kmalloc(sz, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
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}
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void *rtw_malloc2d(int h, int w, int size)
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{
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int j;
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void **a = kzalloc(h * sizeof(void *) + h * w * size, GFP_KERNEL);
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if (!a)
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goto out;
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for (j = 0; j < h; j++)
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a[j] = ((char *)(a + h)) + j * w * size;
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out:
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return a;
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}
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void _rtw_init_queue(struct __queue *pqueue)
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{
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INIT_LIST_HEAD(&pqueue->queue);
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spin_lock_init(&pqueue->lock);
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}
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struct net_device *rtw_alloc_etherdev_with_old_priv(void *old_priv)
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{
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struct net_device *pnetdev;
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struct rtw_netdev_priv_indicator *pnpi;
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pnetdev = alloc_etherdev_mq(sizeof(struct rtw_netdev_priv_indicator), 4);
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if (!pnetdev)
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goto RETURN;
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pnpi = netdev_priv(pnetdev);
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pnpi->priv = old_priv;
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RETURN:
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return pnetdev;
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}
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void rtw_free_netdev(struct net_device *netdev)
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{
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struct rtw_netdev_priv_indicator *pnpi;
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if (!netdev)
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goto RETURN;
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pnpi = netdev_priv(netdev);
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if (!pnpi->priv)
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goto RETURN;
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vfree(pnpi->priv);
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free_netdev(netdev);
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RETURN:
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return;
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}
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u64 rtw_modular64(u64 x, u64 y)
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{
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return do_div(x, y);
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}
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void rtw_buf_free(u8 **buf, u32 *buf_len)
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{
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*buf_len = 0;
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kfree(*buf);
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*buf = NULL;
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}
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void rtw_buf_update(u8 **buf, u32 *buf_len, u8 *src, u32 src_len)
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{
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u32 dup_len = 0;
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u8 *ori = NULL;
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u8 *dup = NULL;
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if (!buf || !buf_len)
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return;
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if (!src || !src_len)
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goto keep_ori;
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/* duplicate src */
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dup = rtw_malloc(src_len);
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if (dup) {
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dup_len = src_len;
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memcpy(dup, src, dup_len);
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}
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keep_ori:
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ori = *buf;
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/* replace buf with dup */
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*buf_len = 0;
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*buf = dup;
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*buf_len = dup_len;
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/* free ori */
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kfree(ori);
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}
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