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path: root/drivers/staging/rtl8192u/r819xU_cmdpkt.c
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Diffstat (limited to 'drivers/staging/rtl8192u/r819xU_cmdpkt.c')
-rw-r--r--drivers/staging/rtl8192u/r819xU_cmdpkt.c571
1 files changed, 571 insertions, 0 deletions
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. */
+
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-04 17:23:10 +0000