// SPDX-License-Identifier: GPL-2.0
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/******************************************************************************
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*
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* (c) Copyright 2008, RealTEK Technologies Inc. All Rights Reserved.
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*
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* Module: r819xusb_cmdpkt.c
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* (RTL8190 TX/RX command packet handler Source C File)
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*
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* Note: The module is responsible for handling TX and RX command packet.
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* 1. TX : Send set and query configuration command packet.
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* 2. RX : Receive tx feedback, beacon state, query configuration
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* command packet.
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*
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* Function:
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*
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* Export:
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*
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* Abbrev:
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*
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* History:
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*
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* Date Who Remark
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* 05/06/2008 amy Create initial version porting from
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* windows driver.
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*
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******************************************************************************/
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#include "r8192U.h"
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#include "r819xU_cmdpkt.h"
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rt_status SendTxCommandPacket(struct net_device *dev, void *pData, u32 DataLen)
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{
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struct r8192_priv *priv = ieee80211_priv(dev);
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struct sk_buff *skb;
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struct cb_desc *tcb_desc;
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/* Get TCB and local buffer from common pool.
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* (It is shared by CmdQ, MgntQ, and USB coalesce DataQ)
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*/
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skb = dev_alloc_skb(USB_HWDESC_HEADER_LEN + DataLen + 4);
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if (!skb)
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return RT_STATUS_FAILURE;
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memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
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tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
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tcb_desc->queue_index = TXCMD_QUEUE;
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tcb_desc->bCmdOrInit = DESC_PACKET_TYPE_NORMAL;
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tcb_desc->bLastIniPkt = 0;
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skb_reserve(skb, USB_HWDESC_HEADER_LEN);
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skb_put_data(skb, pData, DataLen);
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tcb_desc->txbuf_size = (u16)DataLen;
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if (!priv->ieee80211->check_nic_enough_desc(dev, tcb_desc->queue_index) ||
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(!skb_queue_empty(&priv->ieee80211->skb_waitQ[tcb_desc->queue_index])) ||
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(priv->ieee80211->queue_stop)) {
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RT_TRACE(COMP_FIRMWARE, "=== NULL packet ======> tx full!\n");
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skb_queue_tail(&priv->ieee80211->skb_waitQ[tcb_desc->queue_index], skb);
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} else {
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priv->ieee80211->softmac_hard_start_xmit(skb, dev);
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}
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return RT_STATUS_SUCCESS;
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}
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static void cmpk_count_txstatistic(struct net_device *dev, struct cmd_pkt_tx_feedback *pstx_fb)
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{
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struct r8192_priv *priv = ieee80211_priv(dev);
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#ifdef ENABLE_PS
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RT_RF_POWER_STATE rtState;
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pAdapter->HalFunc.GetHwRegHandler(pAdapter, HW_VAR_RF_STATE,
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(pu1Byte)(&rtState));
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/* When RF is off, we should not count the packet for hw/sw synchronize
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* reason, ie. there may be a duration while sw switch is changed and
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* hw switch is being changed.
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*/
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if (rtState == eRfOff)
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return;
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#endif
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#ifdef TODO
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if (pAdapter->bInHctTest)
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return;
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#endif
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/* We can not know the packet length and transmit type:
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* broadcast or uni or multicast. So the relative statistics
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* must be collected in tx feedback info.
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*/
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if (pstx_fb->tok) {
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priv->stats.txfeedbackok++;
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priv->stats.txoktotal++;
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priv->stats.txokbytestotal += pstx_fb->pkt_length;
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priv->stats.txokinperiod++;
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/* We can not make sure broadcast/multicast or unicast mode. */
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if (pstx_fb->pkt_type == PACKET_MULTICAST) {
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priv->stats.txmulticast++;
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priv->stats.txbytesmulticast += pstx_fb->pkt_length;
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} else if (pstx_fb->pkt_type == PACKET_BROADCAST) {
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priv->stats.txbroadcast++;
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priv->stats.txbytesbroadcast += pstx_fb->pkt_length;
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} else {
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priv->stats.txunicast++;
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priv->stats.txbytesunicast += pstx_fb->pkt_length;
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}
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} else {
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priv->stats.txfeedbackfail++;
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priv->stats.txerrtotal++;
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priv->stats.txerrbytestotal += pstx_fb->pkt_length;
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/* We can not make sure broadcast/multicast or unicast mode. */
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if (pstx_fb->pkt_type == PACKET_MULTICAST)
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priv->stats.txerrmulticast++;
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else if (pstx_fb->pkt_type == PACKET_BROADCAST)
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priv->stats.txerrbroadcast++;
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else
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priv->stats.txerrunicast++;
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}
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priv->stats.txretrycount += pstx_fb->retry_cnt;
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priv->stats.txfeedbackretry += pstx_fb->retry_cnt;
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}
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/*-----------------------------------------------------------------------------
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* Function: cmpk_handle_tx_feedback()
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*
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* Overview: The function is responsible for extract the message inside TX
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* feedbck message from firmware. It will contain dedicated info in
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* ws-06-0063-rtl8190-command-packet-specification.
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* Please refer to chapter "TX Feedback Element".
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* We have to read 20 bytes in the command packet.
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*
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* Input: struct net_device *dev
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* u8 *pmsg - Msg Ptr of the command packet.
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*
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* Output: NONE
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*
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* Return: NONE
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*
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* Revised History:
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* When Who Remark
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* 05/08/2008 amy Create Version 0 porting from windows code.
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*
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*---------------------------------------------------------------------------
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*/
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static void cmpk_handle_tx_feedback(struct net_device *dev, u8 *pmsg)
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{
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struct r8192_priv *priv = ieee80211_priv(dev);
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struct cmd_pkt_tx_feedback rx_tx_fb;
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priv->stats.txfeedback++;
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/* 1. Extract TX feedback info from RFD to temp structure buffer. */
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/* It seems that FW use big endian(MIPS) and DRV use little endian in
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* windows OS. So we have to read the content byte by byte or transfer
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* endian type before copy the message copy.
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*/
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/* Use pointer to transfer structure memory. */
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memcpy((u8 *)&rx_tx_fb, pmsg, sizeof(struct cmd_pkt_tx_feedback));
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/* 2. Use tx feedback info to count TX statistics. */
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cmpk_count_txstatistic(dev, &rx_tx_fb);
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/* Comment previous method for TX statistic function. */
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/* Collect info TX feedback packet to fill TCB. */
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/* We can not know the packet length and transmit type: broadcast or uni
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* or multicast.
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*/
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}
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static void cmdpkt_beacontimerinterrupt_819xusb(struct net_device *dev)
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{
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struct r8192_priv *priv = ieee80211_priv(dev);
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u16 tx_rate;
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/* 87B have to S/W beacon for DTM encryption_cmn. */
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if (priv->ieee80211->current_network.mode == IEEE_A ||
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priv->ieee80211->current_network.mode == IEEE_N_5G ||
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(priv->ieee80211->current_network.mode == IEEE_N_24G &&
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(!priv->ieee80211->pHTInfo->bCurSuppCCK))) {
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tx_rate = 60;
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DMESG("send beacon frame tx rate is 6Mbpm\n");
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} else {
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tx_rate = 10;
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DMESG("send beacon frame tx rate is 1Mbpm\n");
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}
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rtl819xusb_beacon_tx(dev, tx_rate); /* HW Beacon */
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}
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/*-----------------------------------------------------------------------------
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* Function: cmpk_handle_interrupt_status()
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*
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* Overview: The function is responsible for extract the message from
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* firmware. It will contain dedicated info in
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* ws-07-0063-v06-rtl819x-command-packet-specification-070315.doc.
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* Please refer to chapter "Interrupt Status Element".
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*
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* Input: struct net_device *dev
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* u8 *pmsg - Message Pointer of the command packet.
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*
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* Output: NONE
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*
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* Return: NONE
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*
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* Revised History:
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* When Who Remark
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* 05/12/2008 amy Add this for rtl8192 porting from windows code.
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*
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*---------------------------------------------------------------------------
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*/
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static void cmpk_handle_interrupt_status(struct net_device *dev, u8 *pmsg)
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{
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struct cmd_pkt_interrupt_status rx_intr_status; /* */
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struct r8192_priv *priv = ieee80211_priv(dev);
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DMESG("---> cmpk_Handle_Interrupt_Status()\n");
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/* 1. Extract TX feedback info from RFD to temp structure buffer. */
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/* It seems that FW use big endian(MIPS) and DRV use little endian in
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* windows OS. So we have to read the content byte by byte or transfer
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* endian type before copy the message copy.
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*/
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rx_intr_status.length = pmsg[1];
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if (rx_intr_status.length != (sizeof(struct cmd_pkt_interrupt_status) - 2)) {
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DMESG("cmpk_Handle_Interrupt_Status: wrong length!\n");
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return;
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}
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/* Statistics of beacon for ad-hoc mode. */
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if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) {
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/* 2 maybe need endian transform? */
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rx_intr_status.interrupt_status = *((u32 *)(pmsg + 4));
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DMESG("interrupt status = 0x%x\n",
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rx_intr_status.interrupt_status);
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if (rx_intr_status.interrupt_status & ISR_TX_BCN_OK) {
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priv->ieee80211->bibsscoordinator = true;
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priv->stats.txbeaconokint++;
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} else if (rx_intr_status.interrupt_status & ISR_TX_BCN_ERR) {
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priv->ieee80211->bibsscoordinator = false;
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priv->stats.txbeaconerr++;
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}
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if (rx_intr_status.interrupt_status & ISR_BCN_TIMER_INTR)
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cmdpkt_beacontimerinterrupt_819xusb(dev);
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}
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/* Other information in interrupt status we need? */
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DMESG("<---- cmpk_handle_interrupt_status()\n");
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}
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/*-----------------------------------------------------------------------------
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* Function: cmpk_handle_query_config_rx()
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*
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* Overview: The function is responsible for extract the message from
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* firmware. It will contain dedicated info in
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* ws-06-0063-rtl8190-command-packet-specification. Please
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* refer to chapter "Beacon State Element".
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*
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* Input: u8 *pmsg - Message Pointer of the command packet.
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*
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* Output: NONE
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*
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* Return: NONE
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*
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* Revised History:
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* When Who Remark
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* 05/12/2008 amy Create Version 0 porting from windows code.
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*
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*---------------------------------------------------------------------------
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*/
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static void cmpk_handle_query_config_rx(struct net_device *dev, u8 *pmsg)
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{
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struct cmpk_query_cfg rx_query_cfg;
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/* 1. Extract TX feedback info from RFD to temp structure buffer. */
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/* It seems that FW use big endian(MIPS) and DRV use little endian in
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* windows OS. So we have to read the content byte by byte or transfer
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* endian type before copy the message copy.
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*/
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rx_query_cfg.cfg_action = (pmsg[4] & 0x80) >> 7;
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rx_query_cfg.cfg_type = (pmsg[4] & 0x60) >> 5;
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rx_query_cfg.cfg_size = (pmsg[4] & 0x18) >> 3;
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rx_query_cfg.cfg_page = (pmsg[6] & 0x0F) >> 0;
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rx_query_cfg.cfg_offset = pmsg[7];
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rx_query_cfg.value = (pmsg[8] << 24) | (pmsg[9] << 16) |
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(pmsg[10] << 8) | (pmsg[11] << 0);
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rx_query_cfg.mask = (pmsg[12] << 24) | (pmsg[13] << 16) |
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(pmsg[14] << 8) | (pmsg[15] << 0);
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}
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/*-----------------------------------------------------------------------------
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* Function: cmpk_count_tx_status()
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*
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* Overview: Count aggregated tx status from firmwar of one type rx command
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* packet element id = RX_TX_STATUS.
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*
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* Input: NONE
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*
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* Output: NONE
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*
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* Return: NONE
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*
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* Revised History:
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* When Who Remark
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* 05/12/2008 amy Create Version 0 porting from windows code.
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*
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*---------------------------------------------------------------------------
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*/
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static void cmpk_count_tx_status(struct net_device *dev,
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cmpk_tx_status_t *pstx_status)
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{
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struct r8192_priv *priv = ieee80211_priv(dev);
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#ifdef ENABLE_PS
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RT_RF_POWER_STATE rtstate;
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pAdapter->HalFunc.GetHwRegHandler(pAdapter, HW_VAR_RF_STATE,
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(pu1Byte)(&rtState));
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/* When RF is off, we should not count the packet for hw/sw synchronize
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* reason, ie. there may be a duration while sw switch is changed and
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* hw switch is being changed.
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*/
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if (rtState == eRfOff)
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return;
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#endif
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priv->stats.txfeedbackok += pstx_status->txok;
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priv->stats.txoktotal += pstx_status->txok;
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priv->stats.txfeedbackfail += pstx_status->txfail;
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priv->stats.txerrtotal += pstx_status->txfail;
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priv->stats.txretrycount += pstx_status->txretry;
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priv->stats.txfeedbackretry += pstx_status->txretry;
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priv->stats.txmulticast += pstx_status->txmcok;
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priv->stats.txbroadcast += pstx_status->txbcok;
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priv->stats.txunicast += pstx_status->txucok;
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priv->stats.txerrmulticast += pstx_status->txmcfail;
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priv->stats.txerrbroadcast += pstx_status->txbcfail;
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priv->stats.txerrunicast += pstx_status->txucfail;
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priv->stats.txbytesmulticast += pstx_status->txmclength;
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priv->stats.txbytesbroadcast += pstx_status->txbclength;
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priv->stats.txbytesunicast += pstx_status->txuclength;
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priv->stats.last_packet_rate = pstx_status->rate;
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}
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/*-----------------------------------------------------------------------------
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* Function: cmpk_handle_tx_status()
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*
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* Overview: Firmware add a new tx feedback status to reduce rx command
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* packet buffer operation load.
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*
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* Input: NONE
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*
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* Output: NONE
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*
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* Return: NONE
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*
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* Revised History:
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* When Who Remark
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* 05/12/2008 amy Create Version 0 porting from windows code.
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*
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*---------------------------------------------------------------------------
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*/
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static void cmpk_handle_tx_status(struct net_device *dev, u8 *pmsg)
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{
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cmpk_tx_status_t rx_tx_sts;
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memcpy((void *)&rx_tx_sts, (void *)pmsg, sizeof(cmpk_tx_status_t));
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/* 2. Use tx feedback info to count TX statistics. */
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cmpk_count_tx_status(dev, &rx_tx_sts);
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}
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/*-----------------------------------------------------------------------------
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* Function: cmpk_handle_tx_rate_history()
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*
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* Overview: Firmware add a new tx rate history
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*
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* Input: NONE
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*
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* Output: NONE
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*
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* Return: NONE
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*
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* Revised History:
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* When Who Remark
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* 05/12/2008 amy Create Version 0 porting from windows code.
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*
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*---------------------------------------------------------------------------
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*/
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static void cmpk_handle_tx_rate_history(struct net_device *dev, u8 *pmsg)
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{
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cmpk_tx_rahis_t *ptxrate;
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u8 i, j;
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u16 length = sizeof(cmpk_tx_rahis_t);
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u32 *ptemp;
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struct r8192_priv *priv = ieee80211_priv(dev);
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#ifdef ENABLE_PS
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pAdapter->HalFunc.GetHwRegHandler(pAdapter, HW_VAR_RF_STATE,
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(pu1Byte)(&rtState));
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/* When RF is off, we should not count the packet for hw/sw synchronize
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* reason, ie. there may be a duration while sw switch is changed and
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* hw switch is being changed.
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*/
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if (rtState == eRfOff)
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return;
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#endif
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ptemp = (u32 *)pmsg;
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/* Do endian transfer to word alignment(16 bits) for windows system.
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* You must do different endian transfer for linux and MAC OS
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*/
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for (i = 0; i < (length/4); i++) {
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u16 temp1, temp2;
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temp1 = ptemp[i] & 0x0000FFFF;
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temp2 = ptemp[i] >> 16;
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ptemp[i] = (temp1 << 16) | temp2;
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}
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ptxrate = (cmpk_tx_rahis_t *)pmsg;
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if (!ptxrate)
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return;
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for (i = 0; i < 16; i++) {
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/* Collect CCK rate packet num */
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if (i < 4)
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priv->stats.txrate.cck[i] += ptxrate->cck[i];
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/* Collect OFDM rate packet num */
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if (i < 8)
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priv->stats.txrate.ofdm[i] += ptxrate->ofdm[i];
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for (j = 0; j < 4; j++)
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priv->stats.txrate.ht_mcs[j][i] += ptxrate->ht_mcs[j][i];
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}
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}
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/*-----------------------------------------------------------------------------
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* Function: cmpk_message_handle_rx()
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*
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* Overview: In the function, we will capture different RX command packet
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* info. Every RX command packet element has different message
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* length and meaning in content. We only support three type of RX
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* command packet now. Please refer to document
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* ws-06-0063-rtl8190-command-packet-specification.
|
*
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* Input: NONE
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*
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* Output: NONE
|
*
|
* Return: NONE
|
*
|
* Revised History:
|
* When Who Remark
|
* 05/06/2008 amy Create Version 0 porting from windows code.
|
*
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*---------------------------------------------------------------------------
|
*/
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u32 cmpk_message_handle_rx(struct net_device *dev,
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struct ieee80211_rx_stats *pstats)
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{
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int total_length;
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u8 cmd_length, exe_cnt = 0;
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u8 element_id;
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u8 *pcmd_buff;
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|
/* 0. Check inpt arguments. It is a command queue message or
|
* pointer is null.
|
*/
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if (!pstats)
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return 0; /* This is not a command packet. */
|
|
/* 1. Read received command packet message length from RFD. */
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total_length = pstats->Length;
|
|
/* 2. Read virtual address from RFD. */
|
pcmd_buff = pstats->virtual_address;
|
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/* 3. Read command packet element id and length. */
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element_id = pcmd_buff[0];
|
|
/* 4. Check every received command packet content according to different
|
* element type. Because FW may aggregate RX command packet to
|
* minimize transmit time between DRV and FW.
|
*/
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/* Add a counter to prevent the lock in the loop from being held too
|
* long
|
*/
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while (total_length > 0 && exe_cnt++ < 100) {
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/* We support aggregation of different cmd in the same packet */
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element_id = pcmd_buff[0];
|
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switch (element_id) {
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case RX_TX_FEEDBACK:
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cmpk_handle_tx_feedback(dev, pcmd_buff);
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cmd_length = CMPK_RX_TX_FB_SIZE;
|
break;
|
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case RX_INTERRUPT_STATUS:
|
cmpk_handle_interrupt_status(dev, pcmd_buff);
|
cmd_length = sizeof(struct cmd_pkt_interrupt_status);
|
break;
|
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case BOTH_QUERY_CONFIG:
|
cmpk_handle_query_config_rx(dev, pcmd_buff);
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cmd_length = CMPK_BOTH_QUERY_CONFIG_SIZE;
|
break;
|
|
case RX_TX_STATUS:
|
cmpk_handle_tx_status(dev, pcmd_buff);
|
cmd_length = CMPK_RX_TX_STS_SIZE;
|
break;
|
|
case RX_TX_PER_PKT_FEEDBACK:
|
/* You must at lease add a switch case element here,
|
* Otherwise, we will jump to default case.
|
*/
|
cmd_length = CMPK_RX_TX_FB_SIZE;
|
break;
|
|
case RX_TX_RATE_HISTORY:
|
cmpk_handle_tx_rate_history(dev, pcmd_buff);
|
cmd_length = CMPK_TX_RAHIS_SIZE;
|
break;
|
|
default:
|
|
RT_TRACE(COMP_ERR, "---->%s():unknown CMD Element\n",
|
__func__);
|
return 1; /* This is a command packet. */
|
}
|
|
total_length -= cmd_length;
|
pcmd_buff += cmd_length;
|
}
|
return 1; /* This is a command packet. */
|
}
|
