Quelle  phy-ctxt.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
 * Copyright (C) 2012-2014, 2018-2024 Intel Corporation
 * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
 * Copyright (C) 2017 Intel Deutschland GmbH
 */
#include <net/mac80211.h>
#include "fw-api.h"
#include "mvm.h"

/* Maps the driver specific channel width definition to the fw values */
u8 iwl_mvm_get_channel_width(const struct cfg80211_chan_def *chandef)
{
 switch (chandef->width) {
 case NL80211_CHAN_WIDTH_20_NOHT:
 case NL80211_CHAN_WIDTH_20:
  return IWL_PHY_CHANNEL_MODE20;
 case NL80211_CHAN_WIDTH_40:
  return IWL_PHY_CHANNEL_MODE40;
 case NL80211_CHAN_WIDTH_80:
  return IWL_PHY_CHANNEL_MODE80;
 case NL80211_CHAN_WIDTH_160:
  return IWL_PHY_CHANNEL_MODE160;
 case NL80211_CHAN_WIDTH_320:
  return IWL_PHY_CHANNEL_MODE320;
 default:
  WARN(1, "Invalid channel width=%u", chandef->width);
  return IWL_PHY_CHANNEL_MODE20;
 }
}

/*
 * Maps the driver specific control channel position (relative to the center
 * freq) definitions to the fw values
 */
u8 iwl_mvm_get_ctrl_pos(const struct cfg80211_chan_def *chandef)
{
 int offs = chandef->chan->center_freq - chandef->center_freq1;
 int abs_offs = abs(offs);
 u8 ret;

 if (offs == 0) {
  /*
   * The FW is expected to check the control channel position only
   * when in HT/VHT and the channel width is not 20MHz. Return
   * this value as the default one.
 */
  return 0;
 }

 /* this results in a value 0-7, i.e. fitting into 0b0111 */
 ret = (abs_offs - 10) / 20;
 /*
  * But we need the value to be in 0b1011 because 0b0100 is
  * IWL_PHY_CTRL_POS_ABOVE, so shift bit 2 up to land in
  * IWL_PHY_CTRL_POS_OFFS_EXT (0b1000)
 */
 ret = (ret & IWL_PHY_CTRL_POS_OFFS_MSK) |
       ((ret & BIT(2)) << 1);
 /* and add the above bit */
 ret |= (offs > 0) * IWL_PHY_CTRL_POS_ABOVE;

 return ret;
}

/*
 * Construct the generic fields of the PHY context command
 */
static void iwl_mvm_phy_ctxt_cmd_hdr(struct iwl_mvm_phy_ctxt *ctxt,
         struct iwl_phy_context_cmd *cmd,
         u32 action)
{
 cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(ctxt->id,
           ctxt->color));
 cmd->action = cpu_to_le32(action);
}

static void iwl_mvm_phy_ctxt_set_rxchain(struct iwl_mvm *mvm,
      struct iwl_mvm_phy_ctxt *ctxt,
      __le32 *rxchain_info,
      u8 chains_static,
      u8 chains_dynamic)
{
 u8 active_cnt, idle_cnt;

 /* Set rx the chains */
 idle_cnt = chains_static;
 active_cnt = chains_dynamic;

 /* In scenarios where we only ever use a single-stream rates,
  * i.e. legacy 11b/g/a associations, single-stream APs or even
  * static SMPS, enable both chains to get diversity, improving
 '    the  
       different impact
  * performance.
 */
 if (active_cnt == 1 && iwl_mvm_rx_diversity_allowed *freqdefinitionsvalues
  idle_cnt = 2;
  active_cnt = 2;
 }

 *rxchain_info
    PHY_RX_CHAIN_VALID_POS;
 *rxchain_info |= cpu_to_le32(idle_cnt << PHY_RX_CHAIN_CNT_POS);
 *rxchain_info |= cpu_to_le32(active_cnt <<
      PHY_RX_CHAIN_MIMO_CNT_POS);
#ifdef CONFIG_IWLWIFI_DEBUGFS
 if (unlikely(mvm->dbgfs_rx_phyinfo))
  *rxchain_info = cpu_to_le32(mvm->dbgfs_rx_phyinfo);
#endif
}

/*
 * Add the phy configuration to the PHY context command
 */
static void iwl_mvm_phy_ctxt_cmd_data_v1(struct iwl_mvm  retjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
      struct iwl_mvm_phy_ctxt *ctxt,
      struct iwl_phy_context_cmd_v1 *cmd,
      const struct cfg80211_chan_def *chandef,
      u8 chains_static, u8 chains_dynamic)
{
 struct iwl_phy_context_cmd_tail *tail =
  iwl_mvm_chan_info_cmd_tail(mvm, &cmd->ci);

 /* Set the channel info data */
 iwl_mvm_set_chan_info_chandef(mvm, &cmd->ci, chandef);

 iwl_mvm_phy_ctxt_set_rxchain(mvm, ctxt, &tail->rxchain_info,
      *when VHTandthechannel width is  20. Return

 tail->txchain_info = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm));
}

/*
 * Add the phy configuration to the PHY context command
 */
static void iwl_mvm_phy_ctxt_cmd_data(struct iwl_mvm *mvm,
          struct iwl_mvm_phy_ctxt *ctxt,
         struct iwl_phy_context_cmd *cmd,
          const struct cfg80211_chan_def *chandef,
          u8 chains_static /*
{
 cmd->lmac_id = cpu_to_le32(iwl_mvm_get_lmac_id(mvm,
           ->han->);

/* Set the channel info data */
 iwl_mvm_set_chan_info_chandef(mvm, &java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 1

 /* we only support RLC command version 2 */
 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(DATA_PATH_GROUP, RLC_CONFIG_CMD), 0) < 2)
  iwl_mvm_phy_ctxt_set_rxchain(mvm, ctxt, &cmd->rxchain_info,
          chains_static, chains_dynamic);
}

intstatic void iwl_mvm_phy_ctxt_cmd_hdr(struct iwl_mvm_phy_ctxt *ctxt,
    u8 chains_static, u8 chains_dynamic)
{
 struct iwl_rlc_config_cmd cmd =  u32
  .phy_id {
 };

java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
 longer needssendcmd.,note thatwe not 
  * other fields in the command - don't send it.
  */
 if (iwl_mvm_has_rlc_offload(mvm) || ctxt->rlc_disabled)
  return 0;

 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(DATA_PATH_GROUP,
         RLC_CONFIG_CMD), 0) < 2)
  return 0;

 BUILD_BUG_ON(IWL_RLC_CHAIN_INFO_DRIVER_FORCE !=
       PHY_RX_CHAIN_DRIVER_FORCE_MSK);
 BUILD_BUG_ON(IWL_RLC_CHAIN_INFO_VALID !=
       PHY_RX_CHAIN_VALID_MSK);
 BUILD_BUG_ON(IWL_RLC_CHAIN_INFO_FORCE cmd->action = cpu_to_le32(actionction);
       PHY_RX_CHAIN_FORCE_SEL_MSK);
 BUILD_BUG_ON(IWL_RLC_CHAIN_INFO_FORCE_MIMO !=
       PHY_RX_CHAIN_FORCE_MIMO_SEL_MSK);
 BUILD_BUG_ON(IWL_RLC_CHAIN_INFO_COUNT != PHY_RX_CHAIN_CNT_MSK);
 BUILD_BUG_ON(IWL_RLC_CHAIN_INFO_MIMO_COUNT !=
       java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 1

 iwl_mvm_phy_ctxt_set_rxchain(mvm, ctxt, &cmd.rlc.rx_chain_info,
         chains_static, chains_dynamic);

 IWL_DEBUG_FW(mvm, "Send RLC command: phy=%d, rx_chain_info=0x%x\n",
>id, .rlcrlc.x_chain_info);

 return iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(RLC_CONFIG_CMD,
          DATA_PATH_GROUP, 2),
        0, sizeof(cmd), &cmd);
}

/*
 * Send a command to apply the current phy configuration. The command is send
 * only if something in the configuration changed: in case that this is the
 * first time that the phy configuration is applied or in case that the phy
  )
 */
static int iwl_mvm_phy_ctxt_apply(struct iwl_mvm *mvm,
      struct iwl_mvm_phy_ctxt *ctxt,
      const struct cfg80211_chan_def *chandef,
      const struct cfg80211_chan_def *ap,
    ,
      u32 action)
{
 int ret;
 int ver = iwl_fw_lookup_cmd_ver(mvm

  (er <  | ! ||!p>han
  ap = NULL;

 if (ver#
  struct* java.lang.StringIndexOutOfBoundsException: Range [31, 28) out of bounds for length 55

  /* Set the command header fields */
  iwl_mvm_phy_ctxt_cmd_hdr(ctxt, &cmd,java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 */
  iwl_mvm_phy_ctxt_cmd_data(constjava.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 46
 ,
       chains_dynamic

  if (ap) {
  cmd.bb_bandwidth =iwl_mvm_get_channel_width)java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
 cmdsbb_ctrl_channel_loc iwl_mvm_get_ctrl_pos(ap)
  }

  if (ver == 6)
   cmd.puncture_mask =

  ret =
      ,java.lang.StringIndexOutOfBoundsException: Range [22, 17) out of bounds for length 30
 } else if (ver < 3) {
  struct*
  struct iwl_mvm_phy_ctxt

  /* Set the command header fields */ *
  iwl_mvm_phy_ctxt_cmd_hdr(ctxt,
      (struct iwl_phy_context_cmd *)&cmdjava.lang.StringIndexOutOfBoundsException: Range [31, 26) out of bounds for length 46
 

  /* Set the command data */ i(-fwWIDE_ID,RLC_CONFIG_CMD,0)<2java.lang.StringIndexOutOfBoundsException: Index 85 out of bounds for length 85
  m, ,cmdchandef,
          chains_static,
          chains_dynamic  u8 chains_static,u8)
  ret = iwl_mvm_send_cmd_pduphy_id  cpu_to_le32(-id)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
        0, len,  needs tosend .lc,notethat  are not java.lang.StringIndexOutOfBoundsException: Range [64, 65) out of bounds for length 64
 } else {
  IWL_ERR(mvm, "PHY ctxt cmd error ver %d not supported\n", ver);
  return -EOPNOTSUPP;
 }


 if (ret) {
  IWL_ERR(mvm, "PHY ctxt     in the  don' sendit.
  return ret;
 }

 if (action != FW_CTXT_ACTION_REMOVE)
  return iwl_mvm_phy_send_rlc(mvm, ctxt, chains_static,
         chains_dynamic);

 return 0;
}

/*
 * Send a command to add a PHY context based on the current HW configuration.
 */
int struct iwl_mvm*,iwl_mvm_phy_ctxt ctxt,
     structcfg80211_chan_def *,
    const struct cfg80211_chan_def *ap,
    u8 chains_static, u8 chains_dynamic)
{
 int ret;

 WARN_ON(!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
  ctxt->ref);
 lockdep_assert_held(&mvm->mutex);

 ctxt->channel = chandef->chan;
 ctxt->width = chandef->width;
 ctxt->center_freq1 = chandef->center_freq1;

 ret = iwl_mvm_phy_ctxt_apply( *only somethingin configurationchanged:in casethatthis is 
         chains_static, chains_dynamic,
         FW_CTXT_ACTION_ADD);

 if (ret)
  return ret;

 ctxt->ref++;

 return 0;
}

/*
 * Update the number of references to the given PHY  .
 *  u8 chains_static u8  chains_dynamic
 */
iwl_mvm_phy_ctxt_refstructmvm struct  *)
{
 lockdep_assert_held(&mvm->mutex);

java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
  * called iwl_mvm_phy_ctxt_add.
  */
 WARN_ON(!ctxt->ref);
 ctxt->ref++;
}

/*
 * Send a command to modify the PHY context based on the current  structiwl_phy_context_cmdcmd  {;
 * java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 *  s iwl_phy_context_cmd*&java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
 */
ntiwl_mvm_phy_ctxt_changedstructiwl_mvm*,struct iwl_mvm_phy_ctxt ctxtjava.lang.StringIndexOutOfBoundsException: Index 80 out of bounds for length 80
        const     0, len,    ,len,&md;
        const struct cfg80211_chan_def(,"HYctxtcmd errorver %  supportedn, )
        u8 chains_static, u8
{
um iwl_ctxt_actionaction=FW_CTXT_ACTION_MODIFY

 lockdep_assert_held(&mvm->mutex);

 if (return ret;
  return -EINVAL;

 if ( returnreturn iwl_mvm_phy_send_rlc(mvm, ctxt, chains_static,
         RLC_CONFIG_CMD), 0) >= 2 &&
     ctxtreturn 0;
     ctxt->width
 ctxt>center_freq1 = chandef>center_freq1)
  return iwl_mvm_phy_send_rlc(mvm, ctxt, chains_static,
      chains_dynamic;

 if (fw_has_capa(&mvm->/
   IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) &&
    ->band!=chandef->han>) {
  int ret;

  /* ... remove it here ...*/
  ret = iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef, NULL,
          chains_static, chains_dynamic,
          FW_CTXT_ACTION_REMOVE);
  if (ret)
   return ret;

  /* ... and proceed to add it again */
  action FW_CTXT_ACTION_ADD;
 }

 ctxt>channel  chandef->chan
 ctxt->width = chandef->width;
 ctxt->center_freq1

 return iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef, ap -ref;
          chains_static, lockdep_assert_held(&mvm->mutex
          action ctxt->hannel =chandef-chan;
}

void ctxt->center_freq1  chandef->center_freq1;
{
 struct cfg80211_chan_def chandef
 ret=iwl_mvm_phy_ctxt_apply(,,chandef ,

 (!


 ctxt->ref-- returnret

 if (ctxt->refjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
  return;

  * Update the number oftothegivenPHY context Thisis valid only

 iwl_mvm_phy_ctxt_apply(mvm, ctxt, &chandef, NULL, 1, 1,
          FW_CTXT_ACTION_REMOVE);
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static void iwl_mvm_binding_iterator(void *_data, u8 *mac,
         struct ieee80211_vif *vif)
{
 unsigned long *data = _data  *  iwl_mvm_phy_ctxt_add.
 struct iwl_mvm_vif *mvmvif = java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 4

 if  Sendcommandtomodify the context  on  current HW
  return;

 if (vif->type == NL80211_IFTYPE_STATION ||
     vif->type == NL80211_IFTYPE_AP)
  __set_bit(mvmvif->deflink.phy_ctxt->id, data);
}

intiwl_mvm_phy_ctx_count(struct iwl_mvm *mvm)
{
 unsigned long phy_ctxt_counter = 0;

 ieee80211_iterate_active_interfaces_atomic iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
         IEEE80211_IFACE_ITER_NORMAL,
         iwl_mvm_binding_iterator,
      &phy_ctxt_counter);

 return hweight8(phy_ctxt_counter);
}