r8192E_cmdpkt.c

Go to the documentation of this file.

/******************************************************************************
 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 * The full GNU General Public License is included in this distribution in the
 * file called LICENSE.
 *
 * Contact Information:
 * wlanfae <[email protected]>
******************************************************************************/

#include "rtl_core.h"
#include "r8192E_hw.h"
#include "r8192E_cmdpkt.h"
/*---------------------------Define Local Constant---------------------------*/
/* Debug constant*/
#define     CMPK_DEBOUNCE_CNT           1
#define     CMPK_PRINT(Address)\
{\
    unsigned char   i;\
    u32 temp[10];\
    \
    memcpy(temp, Address, 40);\
    for (i = 0; i < 40; i += 4)\
        printk(KERN_INFO "\r\n %08x", temp[i]);\
}

/*---------------------------Define functions---------------------------------*/
bool cmpk_message_handle_tx(
    struct net_device *dev,
    u8  *code_virtual_address,
    u32 packettype,
    u32 buffer_len)
{

    bool                rt_status = true;
    struct r8192_priv *priv = rtllib_priv(dev);
    u16             frag_threshold;
    u16             frag_length = 0, frag_offset = 0;
    struct rt_firmware *pfirmware = priv->pFirmware;
    struct sk_buff      *skb;
    unsigned char       *seg_ptr;
    struct cb_desc *tcb_desc;
    u8              bLastIniPkt;

    struct tx_fwinfo_8190pci *pTxFwInfo = NULL;

    RT_TRACE(COMP_CMDPKT, "%s(),buffer_len is %d\n", __func__, buffer_len);
    firmware_init_param(dev);
    frag_threshold = pfirmware->cmdpacket_frag_thresold;

    do {
        if ((buffer_len - frag_offset) > frag_threshold) {
            frag_length = frag_threshold ;
            bLastIniPkt = 0;

        } else {
            frag_length = (u16)(buffer_len - frag_offset);
            bLastIniPkt = 1;
        }

        skb  = dev_alloc_skb(frag_length +
                     priv->rtllib->tx_headroom + 4);

        if (skb == NULL) {
            rt_status = false;
            goto Failed;
        }

        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 = bLastIniPkt;
        tcb_desc->pkt_size = frag_length;

        seg_ptr = skb_put(skb, priv->rtllib->tx_headroom);
        pTxFwInfo = (struct tx_fwinfo_8190pci *)seg_ptr;
        memset(pTxFwInfo, 0, sizeof(struct tx_fwinfo_8190pci));
        memset(pTxFwInfo, 0x12, 8);

        seg_ptr = skb_put(skb, frag_length);
        memcpy(seg_ptr, code_virtual_address, (u32)frag_length);

        priv->rtllib->softmac_hard_start_xmit(skb, dev);

        code_virtual_address += frag_length;
        frag_offset += frag_length;

    } while (frag_offset < buffer_len);

    write_nic_byte(dev, TPPoll, TPPoll_CQ);
Failed:
    return rt_status;
}   /* CMPK_Message_Handle_Tx */

static  void
cmpk_count_txstatistic(
    struct net_device *dev,
    struct cmpk_txfb *pstx_fb)
{
    struct r8192_priv *priv = rtllib_priv(dev);
#ifdef ENABLE_PS
    enum rt_rf_power_state rtState;

    pAdapter->HalFunc.GetHwRegHandler(pAdapter, HW_VAR_RF_STATE,
                      (pu1Byte)(&rtState));

    if (rtState == eRfOff)
        return;
#endif

    if (pstx_fb->tok) {
        priv->stats.txfeedbackok++;
        priv->stats.txoktotal++;
        priv->stats.txokbytestotal += pstx_fb->pkt_length;
        priv->stats.txokinperiod++;

        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;

        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;

}   /* cmpk_CountTxStatistic */



static void cmpk_handle_tx_feedback(struct net_device *dev, u8 *pmsg)
{
    struct r8192_priv *priv = rtllib_priv(dev);
    struct cmpk_txfb rx_tx_fb;  /* */

    priv->stats.txfeedback++;


    memcpy((u8 *)&rx_tx_fb, pmsg, sizeof(struct cmpk_txfb));
    cmpk_count_txstatistic(dev, &rx_tx_fb);

}   /* cmpk_Handle_Tx_Feedback */

static void cmdpkt_beacontimerinterrupt_819xusb(struct net_device *dev)
{
    struct r8192_priv *priv = rtllib_priv(dev);
    u16 tx_rate;

    if ((priv->rtllib->current_network.mode == IEEE_A)  ||
        (priv->rtllib->current_network.mode == IEEE_N_5G) ||
        ((priv->rtllib->current_network.mode == IEEE_N_24G)  &&
        (!priv->rtllib->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");
    }

}

static void cmpk_handle_interrupt_status(struct net_device *dev, u8 *pmsg)
{
    struct cmpk_intr_sta rx_intr_status;    /* */
    struct r8192_priv *priv = rtllib_priv(dev);

    DMESG("---> cmpk_Handle_Interrupt_Status()\n");


    rx_intr_status.length = pmsg[1];
    if (rx_intr_status.length != (sizeof(struct cmpk_intr_sta) - 2)) {
        DMESG("cmpk_Handle_Interrupt_Status: wrong length!\n");
        return;
    }


    if (priv->rtllib->iw_mode == IW_MODE_ADHOC) {
        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->rtllib->bibsscoordinator = true;
            priv->stats.txbeaconokint++;
        } else if (rx_intr_status.interrupt_status & ISR_TxBcnErr) {
            priv->rtllib->bibsscoordinator = false;
            priv->stats.txbeaconerr++;
        }

        if (rx_intr_status.interrupt_status & ISR_BcnTimerIntr)
            cmdpkt_beacontimerinterrupt_819xusb(dev);
    }

    DMESG("<---- cmpk_handle_interrupt_status()\n");

}   /* cmpk_handle_interrupt_status */


static  void cmpk_handle_query_config_rx(struct net_device *dev, u8 *pmsg)
{
    cmpk_query_cfg_t    rx_query_cfg;   /* */


    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);

}   /* cmpk_Handle_Query_Config_Rx */


static void cmpk_count_tx_status(struct net_device *dev,
                 struct cmpk_tx_status *pstx_status)
{
    struct r8192_priv *priv = rtllib_priv(dev);

#ifdef ENABLE_PS

    enum rt_rf_power_state rtstate;

    pAdapter->HalFunc.GetHwRegHandler(pAdapter, HW_VAR_RF_STATE,
                      (pu1Byte)(&rtState));

    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;
}   /* cmpk_CountTxStatus */



static  void cmpk_handle_tx_status(struct net_device *dev, u8 *pmsg)
{
    struct cmpk_tx_status rx_tx_sts;    /* */

    memcpy((void *)&rx_tx_sts, (void *)pmsg, sizeof(struct cmpk_tx_status));
    cmpk_count_tx_status(dev, &rx_tx_sts);
}

static  void cmpk_handle_tx_rate_history(struct net_device *dev, u8 *pmsg)
{
    struct cmpk_tx_rahis *ptxrate;
    u8 i, j;
    u16             length = sizeof(struct cmpk_tx_rahis);
    u32 *ptemp;
    struct r8192_priv *priv = rtllib_priv(dev);


#ifdef ENABLE_PS
    pAdapter->HalFunc.GetHwRegHandler(pAdapter, HW_VAR_RF_STATE,
                     (pu1Byte)(&rtState));

    if (rtState == eRfOff)
        return;
#endif

    ptemp = (u32 *)pmsg;

    for (i = 0; i < (length / 4); i++) {
        u16  temp1, temp2;

        temp1 = ptemp[i] & 0x0000FFFF;
        temp2 = ptemp[i] >> 16;
        ptemp[i] = (temp1 << 16) | temp2;
    }

    ptxrate = (struct cmpk_tx_rahis *)pmsg;

    if (ptxrate == NULL)
        return;

    for (i = 0; i < 16; i++) {
        if (i < 4)
            priv->stats.txrate.cck[i] += ptxrate->cck[i];

        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];
    }

}


u32 cmpk_message_handle_rx(struct net_device *dev,
               struct rtllib_rx_stats *pstats)
{
    int         total_length;
    u8          cmd_length, exe_cnt = 0;
    u8          element_id;
    u8          *pcmd_buff;

    RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx()\n");

    if (pstats == NULL) {
        /* Print error message. */
        /*RT_TRACE(COMP_SEND, DebugLevel,
                ("\n\r[CMPK]-->Err queue id or pointer"));*/
        return 0;
    }

    total_length = pstats->Length;

    pcmd_buff = pstats->virtual_address;

    element_id = pcmd_buff[0];

    while (total_length > 0 || exe_cnt++ > 100) {
        element_id = pcmd_buff[0];

        switch (element_id) {
        case RX_TX_FEEDBACK:
            RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
                 "RX_TX_FEEDBACK\n");
            cmpk_handle_tx_feedback(dev, pcmd_buff);
            cmd_length = CMPK_RX_TX_FB_SIZE;
            break;
        case RX_INTERRUPT_STATUS:
            RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
                 "RX_INTERRUPT_STATUS\n");
            cmpk_handle_interrupt_status(dev, pcmd_buff);
            cmd_length = sizeof(struct cmpk_intr_sta);
            break;
        case BOTH_QUERY_CONFIG:
            RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
                 "BOTH_QUERY_CONFIG\n");
            cmpk_handle_query_config_rx(dev, pcmd_buff);
            cmd_length = CMPK_BOTH_QUERY_CONFIG_SIZE;
            break;
        case RX_TX_STATUS:
            RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
                 "RX_TX_STATUS\n");
            cmpk_handle_tx_status(dev, pcmd_buff);
            cmd_length = CMPK_RX_TX_STS_SIZE;
            break;
        case RX_TX_PER_PKT_FEEDBACK:
            RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
                 "RX_TX_PER_PKT_FEEDBACK\n");
            cmd_length = CMPK_RX_TX_FB_SIZE;
            break;
        case RX_TX_RATE_HISTORY:
            RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
                 "RX_TX_HISTORY\n");
            cmpk_handle_tx_rate_history(dev, pcmd_buff);
            cmd_length = CMPK_TX_RAHIS_SIZE;
            break;
        default:

            RT_TRACE(COMP_CMDPKT, "---->cmpk_message_handle_rx():"
                 "unknow CMD Element\n");
            return 1;
        }

        total_length -= cmd_length;
        pcmd_buff    += cmd_length;
    }
    return  1;
}