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