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883 lines
20 KiB
883 lines
20 KiB
/******************************************************************************
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*
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* Copyright(c) 2019 Realtek Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*****************************************************************************/
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#define _OSDEP_SERVICE_LINUX_C_
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#include <drv_types.h>
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#ifdef DBG_MEMORY_LEAK
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ATOMIC_T _malloc_cnt = ATOMIC_INIT(0);
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ATOMIC_T _malloc_size = ATOMIC_INIT(0);
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#endif /* DBG_MEMORY_LEAK */
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/*
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* Translate the OS dependent @param error_code to OS independent RTW_STATUS_CODE
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* @return: one of RTW_STATUS_CODE
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*/
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inline int RTW_STATUS_CODE(int error_code)
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{
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if (error_code >= 0)
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return _SUCCESS;
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switch (error_code) {
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/* case -ETIMEDOUT: */
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/* return RTW_STATUS_TIMEDOUT; */
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default:
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return _FAIL;
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}
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}
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void _rtw_skb_queue_purge(struct sk_buff_head *list)
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{
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struct sk_buff *skb;
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while ((skb = skb_dequeue(list)) != NULL)
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_rtw_skb_free(skb);
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}
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void _rtw_memcpy(void *dst, const void *src, u32 sz)
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{
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memcpy(dst, src, sz);
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}
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inline void _rtw_memmove(void *dst, const void *src, u32 sz)
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{
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memmove(dst, src, sz);
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}
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int _rtw_memcmp(const void *dst, const void *src, u32 sz)
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{
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/* under Linux/GNU/GLibc, the return value of memcmp for two same mem. chunk is 0 */
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if (!(memcmp(dst, src, sz)))
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return _TRUE;
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else
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return _FALSE;
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}
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void _rtw_memset(void *pbuf, int c, u32 sz)
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{
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memset(pbuf, c, sz);
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}
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void _rtw_init_listhead(_list *list)
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{
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INIT_LIST_HEAD(list);
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}
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/*
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For the following list_xxx operations,
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caller must guarantee the atomic context.
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Otherwise, there will be racing condition.
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*/
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u32 rtw_is_list_empty(_list *phead)
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{
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if (list_empty(phead))
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return _TRUE;
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else
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return _FALSE;
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}
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void rtw_list_insert_head(_list *plist, _list *phead)
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{
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list_add(plist, phead);
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}
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void rtw_list_insert_tail(_list *plist, _list *phead)
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{
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list_add_tail(plist, phead);
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}
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inline void rtw_list_splice(_list *list, _list *head)
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{
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list_splice(list, head);
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}
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inline void rtw_list_splice_init(_list *list, _list *head)
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{
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list_splice_init(list, head);
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}
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inline void rtw_list_splice_tail(_list *list, _list *head)
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{
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 27))
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if (!list_empty(list))
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__list_splice(list, head);
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#else
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list_splice_tail(list, head);
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#endif
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}
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inline void rtw_hlist_head_init(rtw_hlist_head *h)
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{
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INIT_HLIST_HEAD(h);
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}
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inline void rtw_hlist_add_head(rtw_hlist_node *n, rtw_hlist_head *h)
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{
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hlist_add_head(n, h);
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}
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inline void rtw_hlist_del(rtw_hlist_node *n)
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{
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hlist_del(n);
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}
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inline void rtw_hlist_add_head_rcu(rtw_hlist_node *n, rtw_hlist_head *h)
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{
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hlist_add_head_rcu(n, h);
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}
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inline void rtw_hlist_del_rcu(rtw_hlist_node *n)
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{
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hlist_del_rcu(n);
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}
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void rtw_init_timer(_timer *ptimer, void *pfunc, void *ctx)
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{
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_init_timer(ptimer, pfunc, ctx);
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}
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systime _rtw_get_current_time(void)
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{
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return jiffies;
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}
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inline u32 _rtw_systime_to_ms(systime stime)
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{
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return jiffies_to_msecs(stime);
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}
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inline u32 _rtw_systime_to_us(systime stime)
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{
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return jiffies_to_usecs(stime);
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}
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inline systime _rtw_ms_to_systime(u32 ms)
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{
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return msecs_to_jiffies(ms);
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}
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inline systime _rtw_us_to_systime(u32 us)
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{
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return usecs_to_jiffies(us);
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}
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inline bool _rtw_time_after(systime a, systime b)
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{
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return time_after(a, b);
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}
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inline bool _rtw_time_after_eq(systime a, systime b)
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{
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return time_after_eq(a, b);
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}
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void rtw_sleep_schedulable(int ms)
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{
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u32 delta;
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delta = (ms * HZ) / 1000; /* (ms) */
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if (delta == 0) {
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delta = 1;/* 1 ms */
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}
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set_current_state(TASK_INTERRUPTIBLE);
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schedule_timeout(delta);
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return;
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}
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void rtw_msleep_os(int ms)
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{
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36))
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if (ms < 20) {
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unsigned long us = ms * 1000UL;
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usleep_range(us, us + 1000UL);
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} else
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#endif
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msleep((unsigned int)ms);
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}
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void rtw_usleep_os(int us)
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{
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/* msleep((unsigned int)us); */
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 36))
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usleep_range(us, us + 1);
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#else
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if (1 < (us / 1000))
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msleep(1);
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else
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msleep((us / 1000) + 1);
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#endif
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}
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#ifdef DBG_DELAY_OS
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void _rtw_mdelay_os(int ms, const char *func, const int line)
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{
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RTW_INFO("%s:%d %s(%d)\n", func, line, __FUNCTION__, ms);
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mdelay((unsigned long)ms);
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}
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void _rtw_udelay_os(int us, const char *func, const int line)
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{
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RTW_INFO("%s:%d %s(%d)\n", func, line, __FUNCTION__, us);
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udelay((unsigned long)us);
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}
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#else
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void rtw_mdelay_os(int ms)
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{
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mdelay((unsigned long)ms);
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}
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void rtw_udelay_os(int us)
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{
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udelay((unsigned long)us);
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}
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#endif
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void rtw_yield_os(void)
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{
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yield();
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}
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#define RTW_SUSPEND_LOCK_NAME "rtw_wifi"
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#define RTW_SUSPEND_TRAFFIC_LOCK_NAME "rtw_wifi_traffic"
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#define RTW_SUSPEND_RESUME_LOCK_NAME "rtw_wifi_resume"
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#ifdef CONFIG_WAKELOCK
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static struct wake_lock rtw_suspend_lock;
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static struct wake_lock rtw_suspend_traffic_lock;
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static struct wake_lock rtw_suspend_resume_lock;
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#elif defined(CONFIG_ANDROID_POWER)
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static android_suspend_lock_t rtw_suspend_lock = {
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.name = RTW_SUSPEND_LOCK_NAME
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};
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static android_suspend_lock_t rtw_suspend_traffic_lock = {
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.name = RTW_SUSPEND_TRAFFIC_LOCK_NAME
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};
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static android_suspend_lock_t rtw_suspend_resume_lock = {
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.name = RTW_SUSPEND_RESUME_LOCK_NAME
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};
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#endif
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inline void rtw_suspend_lock_init(void)
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{
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#ifdef CONFIG_WAKELOCK
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wake_lock_init(&rtw_suspend_lock, WAKE_LOCK_SUSPEND, RTW_SUSPEND_LOCK_NAME);
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wake_lock_init(&rtw_suspend_traffic_lock, WAKE_LOCK_SUSPEND, RTW_SUSPEND_TRAFFIC_LOCK_NAME);
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wake_lock_init(&rtw_suspend_resume_lock, WAKE_LOCK_SUSPEND, RTW_SUSPEND_RESUME_LOCK_NAME);
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#elif defined(CONFIG_ANDROID_POWER)
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android_init_suspend_lock(&rtw_suspend_lock);
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android_init_suspend_lock(&rtw_suspend_traffic_lock);
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android_init_suspend_lock(&rtw_suspend_resume_lock);
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#endif
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}
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inline void rtw_suspend_lock_uninit(void)
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{
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#ifdef CONFIG_WAKELOCK
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wake_lock_destroy(&rtw_suspend_lock);
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wake_lock_destroy(&rtw_suspend_traffic_lock);
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wake_lock_destroy(&rtw_suspend_resume_lock);
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#elif defined(CONFIG_ANDROID_POWER)
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android_uninit_suspend_lock(&rtw_suspend_lock);
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android_uninit_suspend_lock(&rtw_suspend_traffic_lock);
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android_uninit_suspend_lock(&rtw_suspend_resume_lock);
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#endif
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}
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inline void rtw_lock_suspend(void)
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{
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#ifdef CONFIG_WAKELOCK
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wake_lock(&rtw_suspend_lock);
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#elif defined(CONFIG_ANDROID_POWER)
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android_lock_suspend(&rtw_suspend_lock);
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#endif
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#if defined(CONFIG_WAKELOCK) || defined(CONFIG_ANDROID_POWER)
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/* RTW_INFO("####%s: suspend_lock_count:%d####\n", __FUNCTION__, rtw_suspend_lock.stat.count); */
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#endif
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}
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inline void rtw_unlock_suspend(void)
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{
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#ifdef CONFIG_WAKELOCK
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wake_unlock(&rtw_suspend_lock);
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#elif defined(CONFIG_ANDROID_POWER)
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android_unlock_suspend(&rtw_suspend_lock);
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#endif
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#if defined(CONFIG_WAKELOCK) || defined(CONFIG_ANDROID_POWER)
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/* RTW_INFO("####%s: suspend_lock_count:%d####\n", __FUNCTION__, rtw_suspend_lock.stat.count); */
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#endif
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}
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inline void rtw_resume_lock_suspend(void)
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{
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#ifdef CONFIG_WAKELOCK
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wake_lock(&rtw_suspend_resume_lock);
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#elif defined(CONFIG_ANDROID_POWER)
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android_lock_suspend(&rtw_suspend_resume_lock);
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#endif
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#if defined(CONFIG_WAKELOCK) || defined(CONFIG_ANDROID_POWER)
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/* RTW_INFO("####%s: suspend_lock_count:%d####\n", __FUNCTION__, rtw_suspend_lock.stat.count); */
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#endif
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}
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inline void rtw_resume_unlock_suspend(void)
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{
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#ifdef CONFIG_WAKELOCK
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wake_unlock(&rtw_suspend_resume_lock);
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#elif defined(CONFIG_ANDROID_POWER)
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android_unlock_suspend(&rtw_suspend_resume_lock);
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#endif
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#if defined(CONFIG_WAKELOCK) || defined(CONFIG_ANDROID_POWER)
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/* RTW_INFO("####%s: suspend_lock_count:%d####\n", __FUNCTION__, rtw_suspend_lock.stat.count); */
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#endif
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}
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inline void rtw_lock_suspend_timeout(u32 timeout_ms)
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{
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#ifdef CONFIG_WAKELOCK
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wake_lock_timeout(&rtw_suspend_lock, rtw_ms_to_systime(timeout_ms));
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#elif defined(CONFIG_ANDROID_POWER)
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android_lock_suspend_auto_expire(&rtw_suspend_lock, rtw_ms_to_systime(timeout_ms));
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#endif
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}
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inline void rtw_lock_traffic_suspend_timeout(u32 timeout_ms)
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{
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#ifdef CONFIG_WAKELOCK
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wake_lock_timeout(&rtw_suspend_traffic_lock, rtw_ms_to_systime(timeout_ms));
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#elif defined(CONFIG_ANDROID_POWER)
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android_lock_suspend_auto_expire(&rtw_suspend_traffic_lock, rtw_ms_to_systime(timeout_ms));
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#endif
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/* RTW_INFO("traffic lock timeout:%d\n", timeout_ms); */
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}
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inline void rtw_set_bit(int nr, unsigned long *addr)
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{
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set_bit(nr, addr);
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}
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inline void rtw_clear_bit(int nr, unsigned long *addr)
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{
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clear_bit(nr, addr);
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}
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inline int rtw_test_and_clear_bit(int nr, unsigned long *addr)
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{
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return test_and_clear_bit(nr, addr);
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}
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inline int rtw_test_and_set_bit(int nr, unsigned long *addr)
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{
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return test_and_set_bit(nr, addr);
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}
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#if !defined(CONFIG_RTW_ANDROID_GKI)
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/*
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* Open a file with the specific @param path, @param flag, @param mode
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* @param fpp the pointer of struct file pointer to get struct file pointer while file opening is success
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* @param path the path of the file to open
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* @param flag file operation flags, please refer to linux document
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* @param mode please refer to linux document
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* @return Linux specific error code
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*/
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static int openFile(struct file **fpp, const char *path, int flag, int mode)
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{
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struct file *fp;
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fp = filp_open(path, flag, mode);
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if (IS_ERR(fp)) {
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*fpp = NULL;
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return PTR_ERR(fp);
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} else {
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*fpp = fp;
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return 0;
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}
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}
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/*
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* Close the file with the specific @param fp
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* @param fp the pointer of struct file to close
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* @return always 0
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*/
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static int closeFile(struct file *fp)
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{
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filp_close(fp, NULL);
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return 0;
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}
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static int readFile(struct file *fp, char *buf, int len)
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{
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int rlen = 0, sum = 0;
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 1, 0))
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if (!(fp->f_mode & FMODE_CAN_READ))
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#else
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if (!fp->f_op || !fp->f_op->read)
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#endif
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return -EPERM;
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while (sum < len) {
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0))
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rlen = kernel_read(fp, buf + sum, len - sum, &fp->f_pos);
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#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 1, 0))
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rlen = __vfs_read(fp, buf + sum, len - sum, &fp->f_pos);
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#else
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rlen = fp->f_op->read(fp, buf + sum, len - sum, &fp->f_pos);
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#endif
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if (rlen > 0)
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sum += rlen;
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else if (0 != rlen)
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return rlen;
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else
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break;
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}
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return sum;
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}
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static int writeFile(struct file *fp, char *buf, int len)
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{
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int wlen = 0, sum = 0;
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 1, 0))
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if (!(fp->f_mode & FMODE_CAN_WRITE))
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#else
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if (!fp->f_op || !fp->f_op->write)
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#endif
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return -EPERM;
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while (sum < len) {
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0))
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wlen = kernel_write(fp, buf + sum, len - sum, &fp->f_pos);
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#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 1, 0))
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wlen = __vfs_write(fp, buf + sum, len - sum, &fp->f_pos);
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#else
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wlen = fp->f_op->write(fp, buf + sum, len - sum, &fp->f_pos);
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#endif
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if (wlen > 0)
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sum += wlen;
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else if (0 != wlen)
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return wlen;
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else
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break;
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}
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return sum;
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}
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/*
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* Test if the specifi @param pathname is a direct and readable
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* If readable, @param sz is not used
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* @param pathname the name of the path to test
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* @return Linux specific error code
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*/
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static int isDirReadable(const char *pathname, u32 *sz)
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{
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struct path path;
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int error = 0;
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return kern_path(pathname, LOOKUP_FOLLOW, &path);
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}
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/*
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* Test if the specifi @param path is a file and readable
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* If readable, @param sz is got
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* @param path the path of the file to test
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* @return Linux specific error code
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*/
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static int isFileReadable(const char *path, u32 *sz)
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{
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struct file *fp;
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int ret = 0;
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
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mm_segment_t oldfs;
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#endif
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char buf;
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fp = filp_open(path, O_RDONLY, 0);
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if (IS_ERR(fp))
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ret = PTR_ERR(fp);
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else {
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
|
|
oldfs = get_fs();
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 1, 0))
|
|
set_fs(KERNEL_DS);
|
|
#else
|
|
set_fs(get_ds());
|
|
#endif
|
|
#endif
|
|
|
|
if (1 != readFile(fp, &buf, 1))
|
|
ret = PTR_ERR(fp);
|
|
|
|
if (ret == 0 && sz) {
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0))
|
|
*sz = i_size_read(fp->f_path.dentry->d_inode);
|
|
#else
|
|
*sz = i_size_read(fp->f_dentry->d_inode);
|
|
#endif
|
|
}
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
|
|
set_fs(oldfs);
|
|
#endif
|
|
filp_close(fp, NULL);
|
|
}
|
|
return ret;
|
|
}
|
|
#endif /* !defined(CONFIG_RTW_ANDROID_GKI)*/
|
|
|
|
/*
|
|
* Open the file with @param path and retrive the file content into memory starting from @param buf for @param sz at most
|
|
* @param path the path of the file to open and read
|
|
* @param buf the starting address of the buffer to store file content
|
|
* @param sz how many bytes to read at most
|
|
* @return the byte we've read, or Linux specific error code
|
|
*/
|
|
static int retriveFromFile(const char *path, u8 *buf, u32 sz)
|
|
{
|
|
#if defined(CONFIG_RTW_ANDROID_GKI)
|
|
int ret = -EINVAL;
|
|
const struct firmware *fw = NULL;
|
|
char* const delim = "/";
|
|
char *name, *token, *cur, *path_tmp = NULL;
|
|
|
|
|
|
if (path == NULL || buf == NULL) {
|
|
RTW_ERR("%s() NULL pointer\n", __func__);
|
|
goto err;
|
|
}
|
|
|
|
path_tmp = kstrdup(path, GFP_KERNEL);
|
|
if (path_tmp == NULL) {
|
|
RTW_ERR("%s() cannot copy path for parsing file name\n", __func__);
|
|
goto err;
|
|
}
|
|
|
|
/* parsing file name from path */
|
|
cur = path_tmp;
|
|
token = strsep(&cur, delim);
|
|
while (token != NULL) {
|
|
token = strsep(&cur, delim);
|
|
if(token)
|
|
name = token;
|
|
}
|
|
|
|
if (name == NULL) {
|
|
RTW_ERR("%s() parsing file name fail\n", __func__);
|
|
goto err;
|
|
}
|
|
|
|
/* request_firmware() will find file in /vendor/firmware but not in path */
|
|
ret = request_firmware(&fw, name, NULL);
|
|
if (ret == 0) {
|
|
RTW_INFO("%s() Success. retrieve file : %s, file size : %zu\n", __func__, name, fw->size);
|
|
|
|
if ((u32)fw->size < sz) {
|
|
_rtw_memcpy(buf, fw->data, (u32)fw->size);
|
|
ret = (u32)fw->size;
|
|
goto exit;
|
|
} else {
|
|
RTW_ERR("%s() file size : %zu exceed buf size : %u\n", __func__, fw->size, sz);
|
|
ret = -EFBIG;
|
|
goto err;
|
|
}
|
|
} else {
|
|
RTW_ERR("%s() Fail. retrieve file : %s, error : %d\n", __func__, name, ret);
|
|
goto err;
|
|
}
|
|
|
|
|
|
|
|
err:
|
|
RTW_ERR("%s() Fail. retrieve file : %s, error : %d\n", __func__, path, ret);
|
|
exit:
|
|
if (path_tmp)
|
|
kfree(path_tmp);
|
|
if (fw)
|
|
release_firmware(fw);
|
|
return ret;
|
|
#else /* !defined(CONFIG_RTW_ANDROID_GKI) */
|
|
int ret = -1;
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
|
|
mm_segment_t oldfs;
|
|
#endif
|
|
struct file *fp;
|
|
|
|
if (path && buf) {
|
|
ret = openFile(&fp, path, O_RDONLY, 0);
|
|
if (0 == ret) {
|
|
RTW_INFO("%s openFile path:%s fp=%p\n", __FUNCTION__, path , fp);
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
|
|
oldfs = get_fs();
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 1, 0))
|
|
set_fs(KERNEL_DS);
|
|
#else
|
|
set_fs(get_ds());
|
|
#endif
|
|
#endif
|
|
|
|
ret = readFile(fp, buf, sz);
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
|
|
set_fs(oldfs);
|
|
#endif
|
|
closeFile(fp);
|
|
|
|
RTW_INFO("%s readFile, ret:%d\n", __FUNCTION__, ret);
|
|
|
|
} else
|
|
RTW_INFO("%s openFile path:%s Fail, ret:%d\n", __FUNCTION__, path, ret);
|
|
} else {
|
|
RTW_INFO("%s NULL pointer\n", __FUNCTION__);
|
|
ret = -EINVAL;
|
|
}
|
|
return ret;
|
|
#endif /* defined(CONFIG_RTW_ANDROID_GKI) */
|
|
}
|
|
|
|
#if !defined(CONFIG_RTW_ANDROID_GKI)
|
|
/*
|
|
* Open the file with @param path and wirte @param sz byte of data starting from @param buf into the file
|
|
* @param path the path of the file to open and write
|
|
* @param buf the starting address of the data to write into file
|
|
* @param sz how many bytes to write at most
|
|
* @return the byte we've written, or Linux specific error code
|
|
*/
|
|
static int storeToFile(const char *path, u8 *buf, u32 sz)
|
|
{
|
|
int ret = 0;
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
|
|
mm_segment_t oldfs;
|
|
#endif
|
|
struct file *fp;
|
|
|
|
if (path && buf) {
|
|
ret = openFile(&fp, path, O_CREAT | O_WRONLY, 0666);
|
|
if (0 == ret) {
|
|
RTW_INFO("%s openFile path:%s fp=%p\n", __FUNCTION__, path , fp);
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
|
|
oldfs = get_fs();
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 1, 0))
|
|
set_fs(KERNEL_DS);
|
|
#else
|
|
set_fs(get_ds());
|
|
#endif
|
|
#endif
|
|
|
|
ret = writeFile(fp, buf, sz);
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0))
|
|
set_fs(oldfs);
|
|
#endif
|
|
closeFile(fp);
|
|
|
|
RTW_INFO("%s writeFile, ret:%d\n", __FUNCTION__, ret);
|
|
|
|
} else
|
|
RTW_INFO("%s openFile path:%s Fail, ret:%d\n", __FUNCTION__, path, ret);
|
|
} else {
|
|
RTW_INFO("%s NULL pointer\n", __FUNCTION__);
|
|
ret = -EINVAL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Test if the specifi @param path is a direct and readable
|
|
* @param path the path of the direct to test
|
|
* @return _TRUE or _FALSE
|
|
*/
|
|
int rtw_is_dir_readable(const char *path)
|
|
{
|
|
if (isDirReadable(path, NULL) == 0)
|
|
return _TRUE;
|
|
else
|
|
return _FALSE;
|
|
}
|
|
#endif /* !defined(CONFIG_RTW_ANDROID_GKI)*/
|
|
|
|
/*
|
|
* Test if the specifi @param path is a file and readable
|
|
* @param path the path of the file to test
|
|
* @return _TRUE or _FALSE
|
|
*/
|
|
int rtw_is_file_readable(const char *path)
|
|
{
|
|
#if !defined(CONFIG_RTW_ANDROID_GKI)
|
|
if (isFileReadable(path, NULL) == 0)
|
|
return _TRUE;
|
|
else
|
|
return _FALSE;
|
|
#else
|
|
RTW_INFO("%s() Android GKI prohibbit kernel_read, return _TRUE\n", __func__);
|
|
return _TRUE;
|
|
#endif /* !defined(CONFIG_RTW_ANDROID_GKI) */
|
|
}
|
|
|
|
/*
|
|
* Test if the specifi @param path is a file and readable.
|
|
* If readable, @param sz is got
|
|
* @param path the path of the file to test
|
|
* @return _TRUE or _FALSE
|
|
*/
|
|
int rtw_is_file_readable_with_size(const char *path, u32 *sz)
|
|
{
|
|
#if !defined(CONFIG_RTW_ANDROID_GKI)
|
|
if (isFileReadable(path, sz) == 0)
|
|
return _TRUE;
|
|
else
|
|
return _FALSE;
|
|
#else
|
|
RTW_INFO("%s() Android GKI prohibbit kernel_read, return _TRUE\n", __func__);
|
|
*sz = 0;
|
|
return _TRUE;
|
|
#endif /* !defined(CONFIG_RTW_ANDROID_GKI) */
|
|
}
|
|
|
|
|
|
/*
|
|
* Open the file with @param path and retrive the file content into memory starting from @param buf for @param sz at most
|
|
* @param path the path of the file to open and read
|
|
* @param buf the starting address of the buffer to store file content
|
|
* @param sz how many bytes to read at most
|
|
* @return the byte we've read
|
|
*/
|
|
int rtw_retrieve_from_file(const char *path, u8 *buf, u32 sz)
|
|
{
|
|
int ret = retriveFromFile(path, buf, sz);
|
|
return ret >= 0 ? ret : 0;
|
|
}
|
|
|
|
#if !defined(CONFIG_RTW_ANDROID_GKI)
|
|
/*
|
|
* Open the file with @param path and wirte @param sz byte of data starting from @param buf into the file
|
|
* @param path the path of the file to open and write
|
|
* @param buf the starting address of the data to write into file
|
|
* @param sz how many bytes to write at most
|
|
* @return the byte we've written
|
|
*/
|
|
int rtw_store_to_file(const char *path, u8 *buf, u32 sz)
|
|
{
|
|
int ret = storeToFile(path, buf, sz);
|
|
return ret >= 0 ? ret : 0;
|
|
}
|
|
#endif /* !defined(CONFIG_RTW_ANDROID_GKI) */
|
|
|
|
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;
|
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
|
|
pnetdev = alloc_etherdev_mq(sizeof(struct rtw_netdev_priv_indicator), 4);
|
|
#else
|
|
pnetdev = alloc_etherdev(sizeof(struct rtw_netdev_priv_indicator));
|
|
#endif
|
|
if (!pnetdev)
|
|
goto RETURN;
|
|
|
|
pnpi = netdev_priv(pnetdev);
|
|
pnpi->priv = old_priv;
|
|
pnpi->sizeof_priv = sizeof_priv;
|
|
|
|
RETURN:
|
|
return pnetdev;
|
|
}
|
|
|
|
struct net_device *rtw_alloc_etherdev(int sizeof_priv)
|
|
{
|
|
struct net_device *pnetdev;
|
|
struct rtw_netdev_priv_indicator *pnpi;
|
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35))
|
|
pnetdev = alloc_etherdev_mq(sizeof(struct rtw_netdev_priv_indicator), 4);
|
|
#else
|
|
pnetdev = alloc_etherdev(sizeof(struct rtw_netdev_priv_indicator));
|
|
#endif
|
|
if (!pnetdev)
|
|
goto RETURN;
|
|
|
|
pnpi = netdev_priv(pnetdev);
|
|
|
|
pnpi->priv = rtw_zvmalloc(sizeof_priv);
|
|
if (!pnpi->priv) {
|
|
free_netdev(pnetdev);
|
|
pnetdev = NULL;
|
|
goto RETURN;
|
|
}
|
|
|
|
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;
|
|
|
|
free_netdev(netdev);
|
|
|
|
RETURN:
|
|
return;
|
|
}
|
|
|
|
#ifdef CONFIG_PLATFORM_SPRD
|
|
#ifdef do_div
|
|
#undef do_div
|
|
#endif
|
|
#include <asm-generic/div64.h>
|
|
#endif
|
|
|
|
u64 rtw_modular64(u64 x, u64 y)
|
|
{
|
|
return do_div(x, y);
|
|
}
|
|
|
|
u64 rtw_division64(u64 x, u64 y)
|
|
{
|
|
do_div(x, y);
|
|
return x;
|
|
}
|
|
|
|
inline u32 rtw_random32(void)
|
|
{
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0))
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0))
|
|
return get_random_u32();
|
|
#else
|
|
return prandom_u32();
|
|
#endif
|
|
#elif (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 18))
|
|
u32 random_int;
|
|
get_random_bytes(&random_int , 4);
|
|
return random_int;
|
|
#else
|
|
return random32();
|
|
#endif
|
|
}
|