diff options
Diffstat (limited to 'drivers/staging/r8188eu/os_dep/osdep_service.c')
| -rw-r--r-- | drivers/staging/r8188eu/os_dep/osdep_service.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/drivers/staging/r8188eu/os_dep/osdep_service.c b/drivers/staging/r8188eu/os_dep/osdep_service.c deleted file mode 100644 index 88271f956b52..000000000000 --- a/drivers/staging/r8188eu/os_dep/osdep_service.c +++ /dev/null @@ -1,227 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* Copyright(c) 2007 - 2012 Realtek Corporation. */ - -#define _OSDEP_SERVICE_C_ - -#include "../include/osdep_service.h" -#include "../include/drv_types.h" -#include "../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; -} - -void *rtw_malloc2d(int h, int w, int size) -{ - int j; - - void **a = kzalloc(h * sizeof(void *) + h * w * size, GFP_KERNEL); - if (!a) - return NULL; - - for (j = 0; j < h; j++) - a[j] = ((char *)(a + h)) + j * w * size; - - return a; -} - -/* -For the following list_xxx operations, -caller must guarantee the atomic context. -Otherwise, there will be racing condition. -*/ -/* -Caller must check if the list is empty before calling rtw_list_delete -*/ - -static const struct device_type wlan_type = { - .name = "wlan", -}; - -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) - return NULL; - - pnetdev->dev.type = &wlan_type; - pnpi = netdev_priv(pnetdev); - pnpi->priv = old_priv; - pnpi->sizeof_priv = sizeof_priv; - - return pnetdev; -} - -struct net_device *rtw_alloc_etherdev(int sizeof_priv) -{ - struct net_device *pnetdev; - struct rtw_netdev_priv_indicator *pnpi; - - pnetdev = alloc_etherdev_mq(sizeof(struct rtw_netdev_priv_indicator), 4); - if (!pnetdev) - return NULL; - - pnpi = netdev_priv(pnetdev); - - pnpi->priv = vzalloc(sizeof_priv); - if (!pnpi->priv) { - free_netdev(pnetdev); - return NULL; - } - - pnpi->sizeof_priv = sizeof_priv; - - return pnetdev; -} - -void rtw_free_netdev(struct net_device *netdev) -{ - struct rtw_netdev_priv_indicator *pnpi; - - pnpi = netdev_priv(netdev); - - vfree(pnpi->priv); - free_netdev(netdev); -} - -int rtw_change_ifname(struct adapter *padapter, const char *ifname) -{ - struct net_device *pnetdev; - struct net_device *cur_pnetdev; - struct rereg_nd_name_data *rereg_priv; - int ret; - - if (!padapter) - goto error; - - cur_pnetdev = padapter->pnetdev; - rereg_priv = &padapter->rereg_nd_name_priv; - - /* free the old_pnetdev */ - if (rereg_priv->old_pnetdev) { - free_netdev(rereg_priv->old_pnetdev); - rereg_priv->old_pnetdev = NULL; - } - - if (!rtnl_is_locked()) - unregister_netdev(cur_pnetdev); - else - unregister_netdevice(cur_pnetdev); - - rereg_priv->old_pnetdev = cur_pnetdev; - - pnetdev = rtw_init_netdev(padapter); - if (!pnetdev) { - ret = -1; - goto error; - } - - SET_NETDEV_DEV(pnetdev, dvobj_to_dev(adapter_to_dvobj(padapter))); - - rtw_init_netdev_name(pnetdev, ifname); - - eth_hw_addr_set(pnetdev, padapter->eeprompriv.mac_addr); - - if (!rtnl_is_locked()) - ret = register_netdev(pnetdev); - else - ret = register_netdevice(pnetdev); - if (ret != 0) - goto error; - - return 0; -error: - return -1; -} - -void rtw_buf_update(u8 **buf, u32 *buf_len, u8 *src, u32 src_len) -{ - u32 dup_len = 0; - u8 *ori = NULL; - u8 *dup = NULL; - - if (!buf || !buf_len) - return; - - if (!src || !src_len) - goto keep_ori; - - /* duplicate src */ - dup = kmalloc(src_len, GFP_ATOMIC); - if (dup) { - dup_len = src_len; - memcpy(dup, src, dup_len); - } - -keep_ori: - ori = *buf; - - /* replace buf with dup */ - *buf_len = 0; - *buf = dup; - *buf_len = dup_len; - - /* free ori */ - kfree(ori); -} - -/** - * rtw_cbuf_empty - test if cbuf is empty - * @cbuf: pointer of struct rtw_cbuf - * - * Returns: true if cbuf is empty - */ -inline bool rtw_cbuf_empty(struct rtw_cbuf *cbuf) -{ - return cbuf->write == cbuf->read; -} - -/** - * rtw_cbuf_pop - pop a pointer from cbuf - * @cbuf: pointer of struct rtw_cbuf - * - * Lock free operation, be careful of the use scheme - * Returns: pointer popped out - */ -void *rtw_cbuf_pop(struct rtw_cbuf *cbuf) -{ - void *buf; - if (rtw_cbuf_empty(cbuf)) - return NULL; - - buf = cbuf->bufs[cbuf->read]; - cbuf->read = (cbuf->read + 1) % cbuf->size; - - return buf; -} - -/** - * rtw_cbuf_alloc - allocate a rtw_cbuf with given size and do initialization - * @size: size of pointer - * - * Returns: pointer of srtuct rtw_cbuf, NULL for allocation failure - */ -struct rtw_cbuf *rtw_cbuf_alloc(u32 size) -{ - struct rtw_cbuf *cbuf; - - cbuf = kmalloc(struct_size(cbuf, bufs, size), GFP_KERNEL); - - if (cbuf) { - cbuf->write = 0; - cbuf->read = 0; - cbuf->size = size; - } - return cbuf; -} |