From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- drivers/staging/rtl8192u/r819xU_cmdpkt.c | 571 +++++++++++++++++++++++++++++++ 1 file changed, 571 insertions(+) create mode 100644 drivers/staging/rtl8192u/r819xU_cmdpkt.c (limited to 'drivers/staging/rtl8192u/r819xU_cmdpkt.c') diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.c b/drivers/staging/rtl8192u/r819xU_cmdpkt.c new file mode 100644 index 000000000..545f49ec9 --- /dev/null +++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.c @@ -0,0 +1,571 @@ +/****************************************************************************** + * + * (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; + cb_desc *tcb_desc; + unsigned char *ptr_buf; + + /* 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 = (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); + ptr_buf = skb_put(skb, DataLen); + memcpy(ptr_buf, 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] & 0x80000000) >> 31; + 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. If is 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. */ + +} -- cgit v1.2.3-54-g00ecf