/******************************************************************************
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*
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* Copyright(c) 2015 - 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 _RTL8822BS_XMIT_C_
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#include <drv_types.h> /* PADAPTER, rtw_xmit.h and etc. */
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#include <hal_data.h> /* HAL_DATA_TYPE */
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#include "../../hal_halmac.h" /* rtw_halmac_sdio_tx_allowed() and etc. */
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#include "../rtl8822b.h" /* rtl8822b_update_txdesc() and etc. */
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|
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static s32 dequeue_writeport(PADAPTER adapter)
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{
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struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
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struct xmit_priv *pxmitpriv = &adapter->xmitpriv;
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struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(adapter);
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struct xmit_buf *pxmitbuf;
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u32 polling_num = 0;
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pxmitbuf = select_and_dequeue_pending_xmitbuf(adapter);
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if (pxmitbuf == NULL)
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return _TRUE;
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/* check if hardware tx fifo page is enough */
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while (rtw_halmac_sdio_tx_allowed(pdvobjpriv, pxmitbuf->pdata, pxmitbuf->len)) {
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if (RTW_CANNOT_RUN(adapter)) {
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RTW_INFO("%s: bSurpriseRemoved(write port)\n", __func__);
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goto free_xmitbuf;
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}
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polling_num++;
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/* Only polling (0x7F / 10) times here, since rtw_halmac_sdio_tx_allowed() has polled 10 times within */
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if (((polling_num % (0x7F / 10))) == 0) {
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enqueue_pending_xmitbuf_to_head(pxmitpriv, pxmitbuf);
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rtw_msleep_os(1);
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return _FALSE;
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}
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}
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#ifdef CONFIG_CHECK_LEAVE_LPS
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#ifdef CONFIG_LPS_CHK_BY_TP
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if (!adapter_to_pwrctl(adapter)->lps_chk_by_tp)
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#endif
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traffic_check_for_leave_lps(adapter, _TRUE, pxmitbuf->agg_num);
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#endif
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rtw_write_port(adapter, 0, pxmitbuf->len, (u8 *)pxmitbuf);
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free_xmitbuf:
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rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
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#ifdef CONFIG_SDIO_TX_TASKLET
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tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
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#endif
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return _FALSE;
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}
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/*
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* Description
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* For MI call.
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*/
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s32 rtl8822bs_dequeue_writeport(PADAPTER adapter)
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{
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return dequeue_writeport(adapter);
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}
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/*
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* Description
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* Transmit xmitbuf to hardware tx fifo
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*
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* Return
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* _SUCCESS ok
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* _FAIL something error
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*/
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s32 rtl8822bs_xmit_buf_handler(PADAPTER adapter)
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{
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struct xmit_priv *pxmitpriv;
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u8 queue_empty, queue_pending;
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s32 ret;
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pxmitpriv = &adapter->xmitpriv;
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ret = _rtw_down_sema(&pxmitpriv->xmit_sema);
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if (_FAIL == ret) {
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RTW_ERR("%s: down SdioXmitBufSema fail!\n", __FUNCTION__);
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return _FAIL;
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}
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if (RTW_CANNOT_RUN(adapter)) {
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RTW_DBG(FUNC_ADPT_FMT "- bDriverStopped(%s) bSurpriseRemoved(%s)\n",
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FUNC_ADPT_ARG(adapter),
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rtw_is_drv_stopped(adapter) ? "True" : "False",
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rtw_is_surprise_removed(adapter) ? "True" : "False");
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return _FAIL;
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}
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if (rtw_mi_check_pending_xmitbuf(adapter) == 0)
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return _SUCCESS;
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#ifdef CONFIG_LPS_LCLK
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ret = rtw_register_tx_alive(adapter);
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if (ret != _SUCCESS)
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return _SUCCESS;
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#endif
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do {
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queue_empty = rtw_mi_dequeue_writeport(adapter);
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} while (!queue_empty);
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#ifdef CONFIG_LPS_LCLK
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rtw_unregister_tx_alive(adapter);
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#endif
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return _SUCCESS;
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}
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/*
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* Description:
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* Aggregation packets and send to hardware
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*
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* Return:
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* 0 Success
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* -1 Hardware resource(TX FIFO) not ready
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* -2 Software resource(xmitbuf) not ready
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*/
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static s32 xmit_xmitframes(PADAPTER adapter, struct xmit_priv *pxmitpriv)
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{
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s32 err, ret;
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u32 k = 0;
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u8 max_agg_num;
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struct hw_xmit *hwxmits, *phwxmit;
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u8 no_res, idx, hwentry;
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_irqL irql;
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struct tx_servq *ptxservq;
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_list *sta_plist, *sta_phead, *frame_plist, *frame_phead;
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struct xmit_frame *pxmitframe;
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_queue *pframe_queue;
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struct xmit_buf *pxmitbuf;
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u32 txlen, max_txbuf_len, max_pg_num;
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u32 page_size, desc_size;
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int inx[4];
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u8 pre_qsel = 0xFF, next_qsel = 0xFF;
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u8 single_sta_in_queue = _FALSE;
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err = 0;
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no_res = _FALSE;
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hwxmits = pxmitpriv->hwxmits;
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hwentry = pxmitpriv->hwxmit_entry;
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ptxservq = NULL;
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pxmitframe = NULL;
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pframe_queue = NULL;
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pxmitbuf = NULL;
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max_txbuf_len = MAX_XMITBUF_SZ;
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max_agg_num = 0xFF;
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rtw_halmac_get_oqt_size(adapter_to_dvobj(adapter), &max_agg_num);
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rtw_hal_get_def_var(adapter, HAL_DEF_TX_PAGE_SIZE, &page_size);
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desc_size = rtl8822b_get_tx_desc_size(adapter);
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if (adapter->registrypriv.wifi_spec == 1) {
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for (idx = 0; idx < 4; idx++)
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inx[idx] = pxmitpriv->wmm_para_seq[idx];
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} else {
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inx[0] = 0;
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inx[1] = 1;
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inx[2] = 2;
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inx[3] = 3;
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}
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/* 0(VO), 1(VI), 2(BE), 3(BK) */
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for (idx = 0; idx < hwentry; idx++) {
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phwxmit = hwxmits + inx[idx];
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if ((check_pending_xmitbuf(pxmitpriv) == _TRUE)
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&& (adapter->mlmepriv.LinkDetectInfo.bHigherBusyTxTraffic == _TRUE)) {
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if ((phwxmit->accnt > 0) && (phwxmit->accnt < 5)) {
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err = -2;
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break;
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}
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}
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rtw_halmac_get_tx_queue_page_num(adapter_to_dvobj(adapter), inx[idx], &max_pg_num);
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_enter_critical_bh(&pxmitpriv->lock, &irql);
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sta_phead = get_list_head(phwxmit->sta_queue);
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sta_plist = get_next(sta_phead);
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/*
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* Because stop_sta_xmit may delete sta_plist at any time,
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* so we should add lock here, or while loop can not exit
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*/
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single_sta_in_queue = rtw_end_of_queue_search(sta_phead, get_next(sta_plist));
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while (rtw_end_of_queue_search(sta_phead, sta_plist) == _FALSE) {
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ptxservq = LIST_CONTAINOR(sta_plist, struct tx_servq, tx_pending);
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sta_plist = get_next(sta_plist);
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#ifdef DBG_XMIT_BUF
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RTW_INFO("%s idx:%d hwxmit_pkt_num:%d ptxservq_pkt_num:%d\n", __FUNCTION__, idx, phwxmit->accnt, ptxservq->qcnt);
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RTW_INFO("%s free_xmit_extbuf_cnt=%d free_xmitbuf_cnt=%d free_xmitframe_cnt=%d\n",
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__FUNCTION__, pxmitpriv->free_xmit_extbuf_cnt, pxmitpriv->free_xmitbuf_cnt,
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pxmitpriv->free_xmitframe_cnt);
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#endif
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pframe_queue = &ptxservq->sta_pending;
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frame_phead = get_list_head(pframe_queue);
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while (rtw_is_list_empty(frame_phead) == _FALSE) {
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frame_plist = get_next(frame_phead);
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pxmitframe = LIST_CONTAINOR(frame_plist, struct xmit_frame, list);
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/* check xmit_buf size enough or not */
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txlen = desc_size + rtw_wlan_pkt_size(pxmitframe);
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next_qsel = pxmitframe->attrib.qsel;
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if ((NULL == pxmitbuf)
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|| ((_RND(pxmitbuf->len, 8) + txlen) > max_txbuf_len)
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|| ((pxmitbuf->pg_num + PageNum(txlen, page_size)) > max_pg_num)
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|| (k == max_agg_num)
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|| ((k != 0) && (_FAIL == rtw_hal_busagg_qsel_check(adapter, pre_qsel, next_qsel)))) {
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if (pxmitbuf) {
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if (pxmitbuf->len > 0 && pxmitbuf->priv_data) {
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struct xmit_frame *pframe;
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pframe = (struct xmit_frame *)pxmitbuf->priv_data;
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pframe->agg_num = k;
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pxmitbuf->agg_num = k;
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rtl8822b_update_txdesc(pframe, pframe->buf_addr);
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rtw_free_xmitframe(pxmitpriv, pframe);
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pxmitbuf->priv_data = NULL;
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enqueue_pending_xmitbuf(pxmitpriv, pxmitbuf);
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if (single_sta_in_queue == _FALSE) {
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/* break the loop in case there is more than one sta in this ac queue */
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pxmitbuf = NULL;
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err = -3;
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break;
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}
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} else
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rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
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}
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pxmitbuf = rtw_alloc_xmitbuf(pxmitpriv);
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if (pxmitbuf == NULL) {
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#if 0
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RTW_ERR("%s: xmit_buf is not enough!\n", __FUNCTION__);
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#endif
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err = -2;
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#ifdef CONFIG_SDIO_TX_ENABLE_AVAL_INT
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_rtw_up_sema(&GET_PRIMARY_ADAPTER(adapter)->xmitpriv.xmit_sema);
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#endif /* CONFIG_SDIO_TX_ENABLE_AVAL_INT */
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break;
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}
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k = 0;
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}
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/* ok to send, remove frame from queue */
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#ifdef CONFIG_AP_MODE
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if (MLME_IS_AP(adapter) || MLME_IS_MESH(adapter)) {
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if ((pxmitframe->attrib.psta->state & WIFI_SLEEP_STATE)
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&& (pxmitframe->attrib.triggered == 0)) {
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RTW_INFO("%s: one not triggered pkt in queue when this STA sleep, break and goto next sta\n", __FUNCTION__);
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break;
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}
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}
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#endif
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rtw_list_delete(&pxmitframe->list);
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ptxservq->qcnt--;
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phwxmit->accnt--;
|
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if (k == 0) {
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pxmitbuf->ff_hwaddr = rtw_get_ff_hwaddr(pxmitframe);
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pxmitbuf->priv_data = (u8 *)pxmitframe;
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}
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/* coalesce the xmitframe to xmitbuf */
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pxmitframe->pxmitbuf = pxmitbuf;
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pxmitframe->buf_addr = pxmitbuf->ptail;
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ret = rtw_xmitframe_coalesce(adapter, pxmitframe->pkt, pxmitframe);
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if (ret == _FAIL) {
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RTW_ERR("%s: coalesce FAIL!", __FUNCTION__);
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/* Todo: error handler */
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} else {
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k++;
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if (k != 1)
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rtl8822b_update_txdesc(pxmitframe, pxmitframe->buf_addr);
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rtw_count_tx_stats(adapter, pxmitframe, pxmitframe->attrib.last_txcmdsz);
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pre_qsel = pxmitframe->attrib.qsel;
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txlen = desc_size + pxmitframe->attrib.last_txcmdsz;
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pxmitframe->pg_num = PageNum(txlen, page_size);
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pxmitbuf->pg_num += pxmitframe->pg_num;
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pxmitbuf->ptail += _RND(txlen, 8); /* round to 8 bytes alignment */
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pxmitbuf->len = _RND(pxmitbuf->len, 8) + txlen;
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}
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if (k != 1)
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rtw_free_xmitframe(pxmitpriv, pxmitframe);
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pxmitframe = NULL;
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}
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#if 0
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/* dump xmit_buf to hw tx fifo */
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if (pxmitbuf && (pxmitbuf->len > 0)) {
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struct xmit_frame *pframe;
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|
RTW_INFO("STA pxmitbuf->len=%d enqueue\n", pxmitbuf->len);
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pframe = (struct xmit_frame *)pxmitbuf->priv_data;
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pframe->agg_num = k;
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pxmitbuf->agg_num = k;
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rtl8822b_update_txdesc(pframe, pframe->buf_addr);
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rtw_free_xmitframe(pxmitpriv, pframe);
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pxmitbuf->priv_data = NULL;
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enqueue_pending_xmitbuf(pxmitpriv, pxmitbuf);
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|
pxmitbuf = NULL;
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}
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#endif
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if (_rtw_queue_empty(pframe_queue) == _TRUE)
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rtw_list_delete(&ptxservq->tx_pending);
|
else if (err == -3) {
|
/* Re-arrange the order of stations in this ac queue to balance the service for these stations */
|
rtw_list_delete(&ptxservq->tx_pending);
|
rtw_list_insert_tail(&ptxservq->tx_pending, get_list_head(phwxmit->sta_queue));
|
err = 0;
|
}
|
|
if (err)
|
break;
|
}
|
_exit_critical_bh(&pxmitpriv->lock, &irql);
|
|
/* dump xmit_buf to hw tx fifo */
|
if (pxmitbuf) {
|
if (pxmitbuf->len > 0) {
|
struct xmit_frame *pframe;
|
|
pframe = (struct xmit_frame *)pxmitbuf->priv_data;
|
pframe->agg_num = k;
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pxmitbuf->agg_num = k;
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rtl8822b_update_txdesc(pframe, pframe->buf_addr);
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rtw_free_xmitframe(pxmitpriv, pframe);
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pxmitbuf->priv_data = NULL;
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enqueue_pending_xmitbuf(pxmitpriv, pxmitbuf);
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rtw_yield_os();
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} else
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rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
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pxmitbuf = NULL;
|
}
|
|
if (err == -2)
|
break;
|
}
|
|
return err;
|
}
|
|
/*
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* Description
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* Transmit xmitframe from queue
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*
|
* Return
|
* _SUCCESS ok
|
* _FAIL something error
|
*/
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static s32 xmit_handler(PADAPTER adapter)
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{
|
struct xmit_priv *pxmitpriv;
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s32 ret;
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_irqL irql;
|
|
|
pxmitpriv = &adapter->xmitpriv;
|
|
ret = _rtw_down_sema(&pxmitpriv->SdioXmitSema);
|
if (_FAIL == ret) {
|
RTW_ERR("%s: down sema fail!\n", __FUNCTION__);
|
return _FAIL;
|
}
|
|
next:
|
if (RTW_CANNOT_RUN(adapter)) {
|
RTW_DBG(FUNC_ADPT_FMT "- bDriverStopped(%s) bSurpriseRemoved(%s)\n",
|
FUNC_ADPT_ARG(adapter),
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rtw_is_drv_stopped(adapter) ? "True" : "False",
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rtw_is_surprise_removed(adapter) ? "True" : "False");
|
return _FAIL;
|
}
|
|
_enter_critical_bh(&pxmitpriv->lock, &irql);
|
ret = rtw_txframes_pending(adapter);
|
_exit_critical_bh(&pxmitpriv->lock, &irql);
|
/* All queues are empty! */
|
if (!ret)
|
return _SUCCESS;
|
|
/* Dequeue frame and write to hardware */
|
ret = xmit_xmitframes(adapter, pxmitpriv);
|
if (ret == -2) {
|
_rtw_up_sema(&pxmitpriv->SdioXmitSema);
|
/*
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* here sleep 1ms will cause big TP loss of TX
|
* from 50+ to 40+
|
*/
|
if (adapter->registrypriv.wifi_spec)
|
rtw_msleep_os(1);
|
else
|
#ifdef CONFIG_REDUCE_TX_CPU_LOADING
|
rtw_msleep_os(1);
|
#else
|
#ifdef RTW_XMIT_THREAD_HIGH_PRIORITY_AGG
|
rtw_usleep_os(10);
|
#else
|
rtw_yield_os();
|
#endif
|
#endif
|
goto next;
|
}
|
|
return _SUCCESS;
|
}
|
|
thread_return rtl8822bs_xmit_thread(thread_context context)
|
{
|
s32 ret;
|
PADAPTER adapter;
|
struct xmit_priv *pxmitpriv;
|
u8 thread_name[20] = {0};
|
#ifdef RTW_XMIT_THREAD_HIGH_PRIORITY_AGG
|
#ifdef PLATFORM_LINUX
|
struct sched_param param = { .sched_priority = 1 };
|
|
sched_setscheduler(current, SCHED_FIFO, ¶m);
|
#endif /* PLATFORM_LINUX */
|
#endif /* RTW_XMIT_THREAD_HIGH_PRIORITY_AGG */
|
|
|
ret = _SUCCESS;
|
adapter = (PADAPTER)context;
|
pxmitpriv = &adapter->xmitpriv;
|
|
rtw_sprintf(thread_name, 20, "RTWHALXT-"ADPT_FMT, ADPT_ARG(adapter));
|
thread_enter(thread_name);
|
|
RTW_INFO("start "FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(adapter));
|
|
do {
|
ret = xmit_handler(adapter);
|
flush_signals_thread();
|
} while (_SUCCESS == ret);
|
|
RTW_INFO(FUNC_ADPT_FMT " Exit\n", FUNC_ADPT_ARG(adapter));
|
|
rtw_thread_wait_stop();
|
|
return 0;
|
}
|
|
/*
|
* Description:
|
* Transmit manage frame
|
*
|
* Return:
|
* _SUCCESS ok or enqueue
|
* _FAIL fail
|
*/
|
s32 rtl8822bs_mgnt_xmit(PADAPTER adapter, struct xmit_frame *pmgntframe)
|
{
|
s32 ret = _SUCCESS;
|
struct dvobj_priv *pdvobjpriv;
|
struct xmit_priv *pxmitpriv;
|
struct pkt_attrib *pattrib;
|
struct xmit_buf *pxmitbuf;
|
u32 page_size, desc_size;
|
u16 subtype;
|
u8 *pframe;
|
|
|
pdvobjpriv = adapter_to_dvobj(adapter);
|
pxmitpriv = &adapter->xmitpriv;
|
pattrib = &pmgntframe->attrib;
|
pxmitbuf = pmgntframe->pxmitbuf;
|
rtw_hal_get_def_var(adapter, HAL_DEF_TX_PAGE_SIZE, &page_size);
|
desc_size = rtl8822b_get_tx_desc_size(adapter);
|
|
rtl8822b_update_txdesc(pmgntframe, pmgntframe->buf_addr);
|
|
pxmitbuf->len = desc_size + pattrib->last_txcmdsz;
|
pxmitbuf->pg_num = PageNum(pxmitbuf->len, page_size);
|
pxmitbuf->ptail = pmgntframe->buf_addr + pxmitbuf->len;
|
|
pframe = pmgntframe->buf_addr + desc_size;
|
subtype = get_frame_sub_type(pframe);
|
|
rtw_count_tx_stats(adapter, pmgntframe, pattrib->last_txcmdsz);
|
|
rtw_free_xmitframe(pxmitpriv, pmgntframe);
|
pxmitbuf->priv_data = NULL;
|
|
if (subtype == WIFI_BEACON) {
|
/* dump beacon directly */
|
ret = rtw_write_port(adapter, 0, pxmitbuf->len, (u8 *)pxmitbuf);
|
if (ret != _SUCCESS)
|
rtw_sctx_done_err(&pxmitbuf->sctx, RTW_SCTX_DONE_WRITE_PORT_ERR);
|
|
rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
|
} else
|
enqueue_pending_xmitbuf(pxmitpriv, pxmitbuf);
|
|
return ret;
|
}
|
|
/*
|
* Description:
|
* Enqueue xmitframe
|
*
|
* Return:
|
* _TRUE enqueue ok
|
* _FALSE fail
|
*/
|
s32 rtl8822bs_hal_xmit_enqueue(PADAPTER adapter, struct xmit_frame *pxmitframe)
|
{
|
struct xmit_priv *pxmitpriv;
|
s32 ret;
|
|
|
pxmitpriv = &adapter->xmitpriv;
|
|
ret = rtw_xmitframe_enqueue(adapter, pxmitframe);
|
if (ret != _SUCCESS) {
|
rtw_free_xmitframe(pxmitpriv, pxmitframe);
|
pxmitpriv->tx_drop++;
|
return _FALSE;
|
}
|
|
#ifdef CONFIG_SDIO_TX_TASKLET
|
tasklet_hi_schedule(&pxmitpriv->xmit_tasklet);
|
#else /* !CONFIG_SDIO_TX_TASKLET */
|
_rtw_up_sema(&pxmitpriv->SdioXmitSema);
|
#endif /* !CONFIG_SDIO_TX_TASKLET */
|
|
return _TRUE;
|
}
|
|
/*
|
* Description:
|
* Handle xmitframe(packet) come from rtw_xmit()
|
*
|
* Return:
|
* _TRUE handle packet directly, maybe ok or drop
|
* _FALSE enqueue, temporary can't transmit packets to hardware
|
*/
|
s32 rtl8822bs_hal_xmit(PADAPTER adapter, struct xmit_frame *pxmitframe)
|
{
|
struct xmit_priv *pxmitpriv;
|
_irqL irql;
|
s32 ret;
|
|
|
pxmitpriv = &adapter->xmitpriv;
|
|
#ifdef CONFIG_80211N_HT
|
if ((pxmitframe->frame_tag == DATA_FRAMETAG)
|
&& (pxmitframe->attrib.ether_type != 0x0806)
|
&& (pxmitframe->attrib.ether_type != 0x888e)
|
&& (pxmitframe->attrib.dhcp_pkt != 1)) {
|
if (adapter->mlmepriv.LinkDetectInfo.bBusyTraffic == _TRUE)
|
rtw_issue_addbareq_cmd(adapter, pxmitframe);
|
}
|
#endif /* CONFIG_80211N_HT */
|
|
_enter_critical_bh(&pxmitpriv->lock, &irql);
|
ret = rtl8822bs_hal_xmit_enqueue(adapter, pxmitframe);
|
_exit_critical_bh(&pxmitpriv->lock, &irql);
|
if (ret != _TRUE) {
|
RTW_INFO("%s: enqueue xmitframe FAIL!\n", __FUNCTION__);
|
return _TRUE;
|
}
|
|
return _FALSE;
|
}
|
|
/*
|
* Return
|
* _SUCCESS start thread ok
|
* _FAIL start thread fail
|
*
|
*/
|
s32 rtl8822bs_init_xmit_priv(PADAPTER adapter)
|
{
|
struct xmit_priv *xmitpriv;
|
|
|
xmitpriv = &adapter->xmitpriv;
|
|
_rtw_init_sema(&xmitpriv->SdioXmitSema, 0);
|
rtl8822b_init_xmit_priv(adapter);
|
return _SUCCESS;
|
}
|
|
void rtl8822bs_free_xmit_priv(PADAPTER adapter)
|
{
|
struct xmit_priv *pxmitpriv;
|
struct xmit_buf *pxmitbuf;
|
_queue *pqueue;
|
_list *plist, *phead;
|
_list tmplist;
|
_irqL irql;
|
|
|
pxmitpriv = &adapter->xmitpriv;
|
pqueue = &pxmitpriv->pending_xmitbuf_queue;
|
phead = get_list_head(pqueue);
|
_rtw_init_listhead(&tmplist);
|
|
_enter_critical_bh(&pqueue->lock, &irql);
|
if (_rtw_queue_empty(pqueue) == _FALSE) {
|
/*
|
* Insert tmplist to end of queue, and delete phead
|
* then tmplist become head of queue.
|
*/
|
rtw_list_insert_tail(&tmplist, phead);
|
rtw_list_delete(phead);
|
}
|
_exit_critical_bh(&pqueue->lock, &irql);
|
|
phead = &tmplist;
|
while (rtw_is_list_empty(phead) == _FALSE) {
|
plist = get_next(phead);
|
rtw_list_delete(plist);
|
|
pxmitbuf = LIST_CONTAINOR(plist, struct xmit_buf, list);
|
rtw_free_xmitframe(pxmitpriv, (struct xmit_frame *)pxmitbuf->priv_data);
|
pxmitbuf->priv_data = NULL;
|
rtw_free_xmitbuf(pxmitpriv, pxmitbuf);
|
}
|
}
|
