drivers/net/wireless/intel/iwlwifi/mvm/rfi.c

   1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
   2 /*
   3  * Copyright (C) 2020 - 2022 Intel Corporation
   4  */
   5
   6 #include "mvm.h"
   7 #include "fw/api/commands.h"
   8 #include "fw/api/phy-ctxt.h"
   9
  10 /*
  11  * DDR needs frequency in units of 16.666MHz, so provide FW with the
  12  * frequency values in the adjusted format.
  13  */
  14 static const struct iwl_rfi_lut_entry iwl_rfi_table[IWL_RFI_LUT_SIZE] = {
  15         /* frequency 2667MHz */
  16         {cpu_to_le16(160), {50, 58, 60, 62, 64, 52, 54, 56},
  17               {PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,
  18                PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,}},
  19
  20         /* frequency 2933MHz */
  21         {cpu_to_le16(176), {149, 151, 153, 157, 159, 161, 165, 163, 167, 169,
  22                             171, 173, 175},
  23               {PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,
  24                PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,
  25                PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,}},
  26
  27         /* frequency 3200MHz */
  28         {cpu_to_le16(192), {79, 81, 83, 85, 87, 89, 91, 93},
  29               {PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,
  30                PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,}},
  31
  32         /* frequency 3733MHz */
  33         {cpu_to_le16(223), {114, 116, 118, 120, 122, 106, 110, 124, 126},
  34               {PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,
  35                PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,}},
  36
  37         /* frequency 4000MHz */
  38         {cpu_to_le16(240), {114, 151, 155, 157, 159, 161, 165},
  39               {PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,
  40                PHY_BAND_5, PHY_BAND_5,}},
  41
  42         /* frequency 4267MHz */
  43         {cpu_to_le16(256), {79, 83, 85, 87, 89, 91, 93,},
  44                {PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,
  45                 PHY_BAND_6, PHY_BAND_6,}},
  46
  47         /* frequency 4400MHz */
  48         {cpu_to_le16(264), {111, 119, 123, 125, 129, 131, 133, 135, 143,},
  49               {PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,
  50                PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,}},
  51
  52         /* frequency 5200MHz */
  53         {cpu_to_le16(312), {36, 38, 40, 42, 44, 46, 50,},
  54                {PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,
  55                 PHY_BAND_5, PHY_BAND_5,}},
  56
  57         /* frequency 5600MHz */
  58         {cpu_to_le16(336), {106, 110, 112, 114, 116, 118, 120, 122},
  59                {PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,
  60                 PHY_BAND_5, PHY_BAND_5, PHY_BAND_5,}},
  61
  62         /* frequency 6000MHz */
  63         {cpu_to_le16(360), {3, 5, 7, 9, 11, 13, 15,},
  64                {PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,
  65                 PHY_BAND_6, PHY_BAND_6,}},
  66
  67         /* frequency 6400MHz */
  68         {cpu_to_le16(384), {79, 83, 85, 87, 89, 91, 93,},
  69                {PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6, PHY_BAND_6,
  70                 PHY_BAND_6, PHY_BAND_6,}},
  71 };
  72
  73 bool iwl_rfi_supported(struct iwl_mvm *mvm)
  74 {
  75         /* The feature depends on a platform bugfix, so for now
  76          * it's always disabled.
  77          * When the platform support detection is implemented we should
  78          * check FW TLV and platform support instead.
  79          */
  80         return false;
  81 }
  82
  83 int iwl_rfi_send_config_cmd(struct iwl_mvm *mvm, struct iwl_rfi_lut_entry *rfi_table)
  84 {
  85         int ret;
  86         struct iwl_rfi_config_cmd cmd;
  87         struct iwl_host_cmd hcmd = {
  88                 .id = WIDE_ID(SYSTEM_GROUP, RFI_CONFIG_CMD),
  89                 .dataflags[0] = IWL_HCMD_DFL_DUP,
  90                 .data[0] = &cmd,
  91                 .len[0] = sizeof(cmd),
  92         };
  93
  94         if (!iwl_rfi_supported(mvm))
  95                 return -EOPNOTSUPP;
  96
  97         lockdep_assert_held(&mvm->mutex);
  98
  99         /* in case no table is passed, use the default one */
 100         if (!rfi_table) {
 101                 memcpy(cmd.table, iwl_rfi_table, sizeof(cmd.table));
 102         } else {
 103                 memcpy(cmd.table, rfi_table, sizeof(cmd.table));
 104                 /* notify FW the table is not the default one */
 105                 cmd.oem = 1;
 106         }
 107
 108         ret = iwl_mvm_send_cmd(mvm, &hcmd);
 109
 110         if (ret)
 111                 IWL_ERR(mvm, "Failed to send RFI config cmd %d\n", ret);
 112
 113         return ret;
 114 }
 115
 116 struct iwl_rfi_freq_table_resp_cmd *iwl_rfi_get_freq_table(struct iwl_mvm *mvm)
 117 {
 118         struct iwl_rfi_freq_table_resp_cmd *resp;
 119         int resp_size = sizeof(*resp);
 120         int ret;
 121         struct iwl_host_cmd cmd = {
 122                 .id = WIDE_ID(SYSTEM_GROUP, RFI_GET_FREQ_TABLE_CMD),
 123                 .flags = CMD_WANT_SKB,
 124         };
 125
 126         if (!iwl_rfi_supported(mvm))
 127                 return ERR_PTR(-EOPNOTSUPP);
 128
 129         mutex_lock(&mvm->mutex);
 130         ret = iwl_mvm_send_cmd(mvm, &cmd);
 131         mutex_unlock(&mvm->mutex);
 132         if (ret)
 133                 return ERR_PTR(ret);
 134
 135         if (WARN_ON_ONCE(iwl_rx_packet_payload_len(cmd.resp_pkt) !=
 136                          resp_size)) {
 137                 iwl_free_resp(&cmd);
 138                 return ERR_PTR(-EIO);
 139         }
 140
 141         resp = kmemdup(cmd.resp_pkt->data, resp_size, GFP_KERNEL);
 142         iwl_free_resp(&cmd);
 143
 144         if (!resp)
 145                 return ERR_PTR(-ENOMEM);
 146
 147         return resp;
 148 }
 149
 150 void iwl_rfi_deactivate_notif_handler(struct iwl_mvm *mvm,
 151                                       struct iwl_rx_cmd_buffer *rxb)
 152 {
 153         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 154         struct iwl_rfi_deactivate_notif *notif = (void *)pkt->data;
 155
 156         IWL_INFO(mvm, "RFIm is deactivated, reason = %d\n", notif->reason);
 157 }