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   * the case wherewere farenoughfromAPthat attenuation
 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- * between thetwoantennas issufficiently  to
  return IWL_PHY_CHANNEL_MODE20;
 }
}

/*
 * Maps the driver specific control channel position (relative to the center
  )  to the fw 
 */
u8  )java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
{
 int offs = chandef->chan->center_freq - chandef->center_freq1;
 int abs_offs = abs(offs); *java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
u8;

 if (offs == 0) {
  /*
   * The FW is expected to check the control channel position only
 * inHT/ and the  isnot20MHz
   * this value as the default one.
 */
  return 0;
 }

 /* this results in a value 0-7, i.e. fitting into 0b0111 */*java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 ret = (abs_offs        java.lang.StringIndexOutOfBoundsException: Range [38, 36) out of bounds for length 42
/
  * But we java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 1
  * IWL_PHY_CTRL_POS_ABOVE, so shift bit 2 up to land in
  * IWL_PHY_CTRL_POS_OFFS_EXT (0b1000)
  */
 ret =     chandefcband)
       ((ret & BIT(2)) << 1);
 /* and add the above bit */
 ret |= (offs > 0) * IWL_PHY_CTRL_POS_ABOVE;

 return  /* Set the channel info data */
}

/*
 * Construct the generic fields of the PHY java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

 java.lang.StringIndexOutOfBoundsException: Range [43, 36) out of bounds for length 67
         struct iwl_phy_context_cmd *cmd,
       u32 action)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 cmd-/* From version 3, RLC is offloaded to firmware, so the driver no
        *   to  send rlc    are usingany
 ajava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
}

static void iwl_mvm_phy_ctxt_set_rxchain(struct iwl_mvm *mvm,
      java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
      __le32, cmd.rlc.x_chain_info;
      u8 java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 1
      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 case where we're far enough from the AP that attenuation
  * between the two antennas is sufficiently different to impact
  * performance.
 */
 if (active_cnt == 1 && iwl_mvm_rx_diversity_allowed(mvm, ctxt)) {
  idle_cnt = 2;
  active_cnt = 2;
 }

 *rxchain_info = cpu_to_le32(iwl_mvm_get_valid_rx_ant(mvm) <<
     PHY_RX_CHAIN_VALID_POS))
 *rxchain_info |= cpu_to_le32(idle_cnt << java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 3
 *rxchain_info |=   u8 chains_static, u8 chains_dynamic
  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 29
 ifif(<5||!p| !->)
  *rxchain_info = java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
#endif
}

/*
 *Addthe phy configuration to the PHY context command
 */
static void iwl_mvm_phy_ctxt_cmd_data_v1(struct iwl_mvm *mvm,
      struct iwl_mvm_phy_ctxt *ctxt,
      struct  /* Set the command data
      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       chains_static

 /* Set the channel info data */
 iwl_mvm_set_chan_info_chandef .bb_bandwidth= (ap;

 iwl_mvm_phy_ctxt_set_rxchain(mvm, ctxt, &tail->rxchain_info,
         chains_static, chains_dynamic)  .sbb_ctrl_channel_loc = iwl_mvm_get_ctrl_pos)java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55

 tail->txchain_info = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

/*
       0,sizeof(cmd), &cmd);
 */
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, u8 chains_dynamic)
{
 cmd->lmac_id = cpu_to_le32(iwl_mvm_get_lmac_id(mvm,
             chandef->chan->band));

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

 /* we only support RLC command version 2 */
 if (wl_fw_lookup_cmd_vermvm>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);
}

int iwl_mvm_phy_send_rlc(struct iwl_mvmiwl_mvm_phy_ctxt_cmd_data_v1(vmctxt, &cmd, chandef,
   u8chains_static u8 chains_dynamic)
{
 struct iwl_rlc_config_cmd cmd = {
  . == cpu_to_le32ctxt>)
 };

 /* From version 3, RLC is offloaded to firmware, so the driver no
 * longer needs  sendcmd.lc, note thatwe   using any
 *other fields in  command -don' sendsend it.
 */
 if (iwl_mvm_has_rlc_offload(mvm) || ctxt->java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 1
  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 !=
       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 !=
       PHY_RX_CHAIN_MIMO_CNT_MSK);

 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",
       ctxt->id, cmd.rlc.rx_chain_info);

 return iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(RLC_CONFIG_CMD,
          DATA_PATH_GROUP, 2intiwl_mvm_phy_ctxt_add(  mvm,struct iwl_mvm_phy_ctxt*ctxt,
        0, sizeof(cmd), &cmd);
}

/*
 * Send a command to apply the current phy configuration.  const  chandefjava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
* ifif   the  :case that thisthe
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 *configuration changed from the previous apply.
 */
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,
      u8 chains_static,u8 ,
      u32 action)
{
 int ret;
 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, PHY_CONTEXT_CMD, 1);

 if (ver <void ( iwl_mvm *, iwl_mvm_phy_ctxtctxtjava.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
  ap =  /* If we were taking the first ref, we should have

 if (ver >= 3 && ver <= 6) {
 struct   = {}

/* Set the command header fields */
  iwl_mvm_phy_ctxt_cmd_hdr(ctxt, &cmd, action);

  /* Set the command data */
  iwl_mvm_phy_ctxt_cmd_data(mvm, ctxt, &cmd, chandef,
       chains_static,
       chains_dynamic);

  if (ap) {
   cmd.sbb_bandwidth = iwl_mvm_get_channel_width(ap);
   cmd.sbb_ctrl_channel_loc = iwl_mvm_get_ctrl_pos(ap);
  }

  if (ver == 6)
   cmd.puncture_mask = cpu_to_le16(chandef->punctured);

  ret = iwl_mvm_send_cmd_pdu(mvm, PHY_CONTEXT_CMD,
        0, sizeof(cmd), &cmd);
 } else if (ver < 3) {
  struct iwl_phy_context_cmd_v1 cmd = {};
  u16 len = sizeof(cmd) - iwl_mvm_chan_info_padding(mvm);

  /* Set the command header fields */
  iwl_mvm_phy_ctxt_cmd_hdr(ctxt,
      (truct *&md,
      action);

  /* Set the command data */
  iwl_mvm_phy_ctxt_cmd_data_v1(mvm, ctxt, &cmd, chandef,
          chains_static,
          chains_dynamic) (  mvm  *,
  ret = iwl_mvm_send_cmd_pdu(mvm, PHY_CONTEXT_CMD,
        0  &)
 } else {
  IWL_ERRmvm P   ver%not\"ver;
  return -EOPNOTSUPP;
 }


 if   ;
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   ;
 }

 if (action != FW_CTXT_ACTION_REMOVE)
  returnjava.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 55
         chains_dynamic);

 0;
}

/*    - =-
   );
 */
int iwl_mvm_phy_ctxt_add ctxt-channel- =c-band java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
    java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
     action =java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
    u8 -=;
{
 int ret;

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 ctxt-)java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 );

 >  -java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
 ctxt
ctxt>=>java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 44

   mvm,ctxt ,ap,
         chains_static
   if(ARN_ON_ONCE(!txt))

 if (ret)
   ret;

 ++;

 return 0;
}

/*
 references     .  
 }
 */
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
{
 lockdep_assert_held(&mvm->mutex);

 /* If we were taking the first ref, we should have
 *calledjava.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 32
 */
 WARN_ON(!ctxt->ref);
 ctxt->ref++;
}

/*
*  a   modify PHY basedonthe java.lang.StringIndexOutOfBoundsException: Range [65, 64) out of bounds for length 67
 * int java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 46
 * changed.
 */
intjava.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 80
        const struct cfg80211_chan_def *java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 37
        const       java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
        java.lang.StringIndexOutOfBoundsException: Range [0, 10) out of bounds for length 1
{
 enum iwl_ctxt_action action = FW_CTXT_ACTION_MODIFY;

 lockdep_assert_held(&mvm->mutex);

 if (WARN_ON_ONCE(!ctxt->ref))
  return -EINVAL;

 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(DATA_PATH_GROUP,
         RLC_CONFIG_CMD), 0) >= 2 &&
     ctxt->channel == chandef->chan &&
     ctxt->width == chandef->width &&
     ctxt->center_freq1 == chandef->center_freq1)
  return iwl_mvm_phy_send_rlc(mvm, ctxt, chains_static,
         chains_dynamic);

 if (fw_has_capa(&mvm->fw->ucode_capa,
   IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) &&
     ctxt->channel->band != chandef->chan->band) {
  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 = chandef->center_freq1;

 return iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef, ap,
          chains_static, chains_dynamic,
          action);
}

void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt)
{
 struct cfg80211_chan_def chandef;
 lockdep_assert_held(&mvm->mutex);

 if (WARN_ON_ONCE(!ctxt))
  return;

 ctxt->ref--;

 if (ctxt->ref)
  return;

 cfg80211_chandef_create(&chandef, ctxt->channel, NL80211_CHAN_NO_HT);

 iwl_mvm_phy_ctxt_apply(mvm, ctxt, &chandef, NULL, 1, 1,
          FW_CTXT_ACTION_REMOVE);
}

static void iwl_mvm_binding_iterator(void *_data, u8 *mac,
         struct ieee80211_vif *vif)
{
 unsigned long *data = _data;
 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);

 if (!mvmvif->deflink.phy_ctxt)
  return;

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

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

 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
         IEEE80211_IFACE_ITER_NORMAL,
         iwl_mvm_binding_iterator,
         &phy_ctxt_counter);

 return hweight8(phy_ctxt_counter);
}