mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
![Lee Jones](/assets/img/avatar_default.png)
Fixes the following W=1 kernel build warning(s): drivers/staging/rtl8192u/r819xU_cmdpkt.c: In function ‘cmpk_handle_query_config_rx’: drivers/staging/rtl8192u/r819xU_cmdpkt.c:274:24: warning: variable ‘rx_query_cfg’ set but not used [-Wunused-but-set-variable] Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Michael Straube <straube.linux@gmail.com> Cc: linux-staging@lists.linux.dev Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210414181129.1628598-7-lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
508 lines
15 KiB
C
508 lines
15 KiB
C
// 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;
|
|
}
|
|
|
|
static void cmpk_count_txstatistic(struct net_device *dev, struct cmd_pkt_tx_feedback *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);
|
|
struct cmd_pkt_tx_feedback 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(struct cmd_pkt_tx_feedback));
|
|
/* 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)
|
|
{
|
|
struct cmd_pkt_interrupt_status 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(struct cmd_pkt_interrupt_status) - 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_TX_BCN_OK) {
|
|
priv->ieee80211->bibsscoordinator = true;
|
|
priv->stats.txbeaconokint++;
|
|
} else if (rx_intr_status.interrupt_status & ISR_TX_BCN_ERR) {
|
|
priv->ieee80211->bibsscoordinator = false;
|
|
priv->stats.txbeaconerr++;
|
|
}
|
|
|
|
if (rx_intr_status.interrupt_status & ISR_BCN_TIMER_INTR)
|
|
cmdpkt_beacontimerinterrupt_819xusb(dev);
|
|
}
|
|
|
|
/* Other information in interrupt status we need? */
|
|
|
|
DMESG("<---- cmpk_handle_interrupt_status()\n");
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------------
|
|
* 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)
|
|
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)
|
|
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(struct cmd_pkt_interrupt_status);
|
|
break;
|
|
|
|
case BOTH_QUERY_CONFIG:
|
|
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. */
|
|
}
|