1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2024-2025 Intel Corporation 4 */ 5 6 #include <linux/dmi.h> 7 8 #include "fw/regulatory.h" 9 #include "fw/acpi.h" 10 #include "fw/uefi.h" 11 12 #include "regulatory.h" 13 #include "mld.h" 14 #include "hcmd.h" 15 16 void iwl_mld_get_bios_tables(struct iwl_mld *mld) 17 { 18 int ret; 19 20 iwl_acpi_get_guid_lock_status(&mld->fwrt); 21 22 ret = iwl_bios_get_ppag_table(&mld->fwrt); 23 if (ret < 0) { 24 IWL_DEBUG_RADIO(mld, 25 "PPAG BIOS table invalid or unavailable. (%d)\n", 26 ret); 27 } 28 29 ret = iwl_bios_get_wrds_table(&mld->fwrt); 30 if (ret < 0) { 31 IWL_DEBUG_RADIO(mld, 32 "WRDS SAR BIOS table invalid or unavailable. (%d)\n", 33 ret); 34 35 /* If not available, don't fail and don't bother with EWRD and 36 * WGDS 37 */ 38 39 if (!iwl_bios_get_wgds_table(&mld->fwrt)) { 40 /* If basic SAR is not available, we check for WGDS, 41 * which should *not* be available either. If it is 42 * available, issue an error, because we can't use SAR 43 * Geo without basic SAR. 44 */ 45 IWL_ERR(mld, "BIOS contains WGDS but no WRDS\n"); 46 } 47 48 } else { 49 ret = iwl_bios_get_ewrd_table(&mld->fwrt); 50 /* If EWRD is not available, we can still use 51 * WRDS, so don't fail. 52 */ 53 if (ret < 0) 54 IWL_DEBUG_RADIO(mld, 55 "EWRD SAR BIOS table invalid or unavailable. (%d)\n", 56 ret); 57 58 ret = iwl_bios_get_wgds_table(&mld->fwrt); 59 if (ret < 0) 60 IWL_DEBUG_RADIO(mld, 61 "Geo SAR BIOS table invalid or unavailable. (%d)\n", 62 ret); 63 /* we don't fail if the table is not available */ 64 } 65 66 ret = iwl_uefi_get_uats_table(mld->trans, &mld->fwrt); 67 if (ret) 68 IWL_DEBUG_RADIO(mld, "failed to read UATS table (%d)\n", ret); 69 } 70 71 static int iwl_mld_geo_sar_init(struct iwl_mld *mld) 72 { 73 u32 cmd_id = WIDE_ID(PHY_OPS_GROUP, PER_CHAIN_LIMIT_OFFSET_CMD); 74 union iwl_geo_tx_power_profiles_cmd cmd; 75 u16 len; 76 u32 n_bands; 77 __le32 sk = cpu_to_le32(0); 78 int ret; 79 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mld->fw, cmd_id, 80 IWL_FW_CMD_VER_UNKNOWN); 81 82 BUILD_BUG_ON(offsetof(struct iwl_geo_tx_power_profiles_cmd_v4, ops) != 83 offsetof(struct iwl_geo_tx_power_profiles_cmd_v5, ops)); 84 85 cmd.v4.ops = cpu_to_le32(IWL_PER_CHAIN_OFFSET_SET_TABLES); 86 87 /* Only set to South Korea if the table revision is 1 */ 88 if (mld->fwrt.geo_rev == 1) 89 sk = cpu_to_le32(1); 90 91 if (cmd_ver == 5) { 92 len = sizeof(cmd.v5); 93 n_bands = ARRAY_SIZE(cmd.v5.table[0]); 94 cmd.v5.table_revision = sk; 95 } else if (cmd_ver == 4) { 96 len = sizeof(cmd.v4); 97 n_bands = ARRAY_SIZE(cmd.v4.table[0]); 98 cmd.v4.table_revision = sk; 99 } else { 100 return -EOPNOTSUPP; 101 } 102 103 BUILD_BUG_ON(offsetof(struct iwl_geo_tx_power_profiles_cmd_v4, table) != 104 offsetof(struct iwl_geo_tx_power_profiles_cmd_v5, table)); 105 /* the table is at the same position for all versions, so set use v4 */ 106 ret = iwl_sar_geo_fill_table(&mld->fwrt, &cmd.v4.table[0][0], 107 n_bands, BIOS_GEO_MAX_PROFILE_NUM); 108 109 /* It is a valid scenario to not support SAR, or miss wgds table, 110 * but in that case there is no need to send the command. 111 */ 112 if (ret) 113 return 0; 114 115 return iwl_mld_send_cmd_pdu(mld, cmd_id, &cmd, len); 116 } 117 118 int iwl_mld_config_sar_profile(struct iwl_mld *mld, int prof_a, int prof_b) 119 { 120 u32 cmd_id = REDUCE_TX_POWER_CMD; 121 struct iwl_dev_tx_power_cmd cmd = { 122 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_CHAINS), 123 }; 124 __le16 *per_chain; 125 int ret; 126 u16 len = sizeof(cmd.common); 127 u32 n_subbands; 128 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mld->fw, cmd_id, 129 IWL_FW_CMD_VER_UNKNOWN); 130 131 if (cmd_ver == 10) { 132 len += sizeof(cmd.v10); 133 n_subbands = IWL_NUM_SUB_BANDS_V2; 134 per_chain = &cmd.v10.per_chain[0][0][0]; 135 cmd.v10.flags = 136 cpu_to_le32(mld->fwrt.reduced_power_flags); 137 } else if (cmd_ver == 9) { 138 len += sizeof(cmd.v9); 139 n_subbands = IWL_NUM_SUB_BANDS_V1; 140 per_chain = &cmd.v9.per_chain[0][0]; 141 } else { 142 return -EOPNOTSUPP; 143 } 144 145 /* TODO: CDB - support IWL_NUM_CHAIN_TABLES_V2 */ 146 ret = iwl_sar_fill_profile(&mld->fwrt, per_chain, 147 IWL_NUM_CHAIN_TABLES, 148 n_subbands, prof_a, prof_b); 149 /* return on error or if the profile is disabled (positive number) */ 150 if (ret) 151 return ret; 152 153 return iwl_mld_send_cmd_pdu(mld, cmd_id, &cmd, len); 154 } 155 156 int iwl_mld_init_sar(struct iwl_mld *mld) 157 { 158 int chain_a_prof = 1; 159 int chain_b_prof = 1; 160 int ret; 161 162 /* If no profile was chosen by the user yet, choose profile 1 (WRDS) as 163 * default for both chains 164 */ 165 if (mld->fwrt.sar_chain_a_profile && mld->fwrt.sar_chain_b_profile) { 166 chain_a_prof = mld->fwrt.sar_chain_a_profile; 167 chain_b_prof = mld->fwrt.sar_chain_b_profile; 168 } 169 170 ret = iwl_mld_config_sar_profile(mld, chain_a_prof, chain_b_prof); 171 if (ret < 0) 172 return ret; 173 174 if (ret) 175 return 0; 176 177 return iwl_mld_geo_sar_init(mld); 178 } 179 180 int iwl_mld_init_sgom(struct iwl_mld *mld) 181 { 182 int ret; 183 struct iwl_host_cmd cmd = { 184 .id = WIDE_ID(REGULATORY_AND_NVM_GROUP, 185 SAR_OFFSET_MAPPING_TABLE_CMD), 186 .data[0] = &mld->fwrt.sgom_table, 187 .len[0] = sizeof(mld->fwrt.sgom_table), 188 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 189 }; 190 191 if (!mld->fwrt.sgom_enabled) { 192 IWL_DEBUG_RADIO(mld, "SGOM table is disabled\n"); 193 return 0; 194 } 195 196 ret = iwl_mld_send_cmd(mld, &cmd); 197 if (ret) 198 IWL_ERR(mld, 199 "failed to send SAR_OFFSET_MAPPING_CMD (%d)\n", ret); 200 201 return ret; 202 } 203 204 static int iwl_mld_ppag_send_cmd(struct iwl_mld *mld) 205 { 206 union iwl_ppag_table_cmd cmd = {}; 207 int ret, len; 208 209 ret = iwl_fill_ppag_table(&mld->fwrt, &cmd, &len); 210 /* Not supporting PPAG table is a valid scenario */ 211 if (ret < 0) 212 return 0; 213 214 IWL_DEBUG_RADIO(mld, "Sending PER_PLATFORM_ANT_GAIN_CMD\n"); 215 ret = iwl_mld_send_cmd_pdu(mld, WIDE_ID(PHY_OPS_GROUP, 216 PER_PLATFORM_ANT_GAIN_CMD), 217 &cmd, len); 218 if (ret < 0) 219 IWL_ERR(mld, "failed to send PER_PLATFORM_ANT_GAIN_CMD (%d)\n", 220 ret); 221 222 return ret; 223 } 224 225 int iwl_mld_init_ppag(struct iwl_mld *mld) 226 { 227 /* no need to read the table, done in INIT stage */ 228 229 if (!(iwl_is_ppag_approved(&mld->fwrt))) 230 return 0; 231 232 return iwl_mld_ppag_send_cmd(mld); 233 } 234 235 void iwl_mld_configure_lari(struct iwl_mld *mld) 236 { 237 struct iwl_fw_runtime *fwrt = &mld->fwrt; 238 struct iwl_lari_config_change_cmd cmd = { 239 .config_bitmap = iwl_get_lari_config_bitmap(fwrt), 240 }; 241 int ret; 242 u32 value; 243 244 ret = iwl_bios_get_dsm(fwrt, DSM_FUNC_11AX_ENABLEMENT, &value); 245 if (!ret) 246 cmd.oem_11ax_allow_bitmap = cpu_to_le32(value); 247 248 ret = iwl_bios_get_dsm(fwrt, DSM_FUNC_ENABLE_UNII4_CHAN, &value); 249 if (!ret) 250 cmd.oem_unii4_allow_bitmap = 251 cpu_to_le32(value &= DSM_UNII4_ALLOW_BITMAP); 252 253 ret = iwl_bios_get_dsm(fwrt, DSM_FUNC_ACTIVATE_CHANNEL, &value); 254 if (!ret) 255 cmd.chan_state_active_bitmap = cpu_to_le32(value); 256 257 ret = iwl_bios_get_dsm(fwrt, DSM_FUNC_ENABLE_6E, &value); 258 if (!ret) 259 cmd.oem_uhb_allow_bitmap = cpu_to_le32(value); 260 261 ret = iwl_bios_get_dsm(fwrt, DSM_FUNC_FORCE_DISABLE_CHANNELS, &value); 262 if (!ret) 263 cmd.force_disable_channels_bitmap = cpu_to_le32(value); 264 265 ret = iwl_bios_get_dsm(fwrt, DSM_FUNC_ENERGY_DETECTION_THRESHOLD, 266 &value); 267 if (!ret) 268 cmd.edt_bitmap = cpu_to_le32(value); 269 270 ret = iwl_bios_get_wbem(fwrt, &value); 271 if (!ret) 272 cmd.oem_320mhz_allow_bitmap = cpu_to_le32(value); 273 274 ret = iwl_bios_get_dsm(fwrt, DSM_FUNC_ENABLE_11BE, &value); 275 if (!ret) 276 cmd.oem_11be_allow_bitmap = cpu_to_le32(value); 277 278 if (!cmd.config_bitmap && 279 !cmd.oem_uhb_allow_bitmap && 280 !cmd.oem_11ax_allow_bitmap && 281 !cmd.oem_unii4_allow_bitmap && 282 !cmd.chan_state_active_bitmap && 283 !cmd.force_disable_channels_bitmap && 284 !cmd.edt_bitmap && 285 !cmd.oem_320mhz_allow_bitmap && 286 !cmd.oem_11be_allow_bitmap) 287 return; 288 289 IWL_DEBUG_RADIO(mld, 290 "sending LARI_CONFIG_CHANGE, config_bitmap=0x%x, oem_11ax_allow_bitmap=0x%x\n", 291 le32_to_cpu(cmd.config_bitmap), 292 le32_to_cpu(cmd.oem_11ax_allow_bitmap)); 293 IWL_DEBUG_RADIO(mld, 294 "sending LARI_CONFIG_CHANGE, oem_unii4_allow_bitmap=0x%x, chan_state_active_bitmap=0x%x\n", 295 le32_to_cpu(cmd.oem_unii4_allow_bitmap), 296 le32_to_cpu(cmd.chan_state_active_bitmap)); 297 IWL_DEBUG_RADIO(mld, 298 "sending LARI_CONFIG_CHANGE, oem_uhb_allow_bitmap=0x%x, force_disable_channels_bitmap=0x%x\n", 299 le32_to_cpu(cmd.oem_uhb_allow_bitmap), 300 le32_to_cpu(cmd.force_disable_channels_bitmap)); 301 IWL_DEBUG_RADIO(mld, 302 "sending LARI_CONFIG_CHANGE, edt_bitmap=0x%x, oem_320mhz_allow_bitmap=0x%x\n", 303 le32_to_cpu(cmd.edt_bitmap), 304 le32_to_cpu(cmd.oem_320mhz_allow_bitmap)); 305 IWL_DEBUG_RADIO(mld, 306 "sending LARI_CONFIG_CHANGE, oem_11be_allow_bitmap=0x%x\n", 307 le32_to_cpu(cmd.oem_11be_allow_bitmap)); 308 309 ret = iwl_mld_send_cmd_pdu(mld, WIDE_ID(REGULATORY_AND_NVM_GROUP, 310 LARI_CONFIG_CHANGE), &cmd); 311 if (ret) 312 IWL_DEBUG_RADIO(mld, 313 "Failed to send LARI_CONFIG_CHANGE (%d)\n", 314 ret); 315 } 316 317 void iwl_mld_init_uats(struct iwl_mld *mld) 318 { 319 int ret; 320 struct iwl_host_cmd cmd = { 321 .id = WIDE_ID(REGULATORY_AND_NVM_GROUP, 322 MCC_ALLOWED_AP_TYPE_CMD), 323 .data[0] = &mld->fwrt.uats_table, 324 .len[0] = sizeof(mld->fwrt.uats_table), 325 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 326 }; 327 328 if (!mld->fwrt.uats_valid) 329 return; 330 331 ret = iwl_mld_send_cmd(mld, &cmd); 332 if (ret) 333 IWL_ERR(mld, "failed to send MCC_ALLOWED_AP_TYPE_CMD (%d)\n", 334 ret); 335 } 336 337 void iwl_mld_init_tas(struct iwl_mld *mld) 338 { 339 int ret; 340 struct iwl_tas_data data = {}; 341 struct iwl_tas_config_cmd cmd = {}; 342 u32 cmd_id = WIDE_ID(REGULATORY_AND_NVM_GROUP, TAS_CONFIG); 343 344 BUILD_BUG_ON(ARRAY_SIZE(data.block_list_array) != 345 IWL_WTAS_BLACK_LIST_MAX); 346 BUILD_BUG_ON(ARRAY_SIZE(cmd.block_list_array) != 347 IWL_WTAS_BLACK_LIST_MAX); 348 349 if (!fw_has_capa(&mld->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TAS_CFG)) { 350 IWL_DEBUG_RADIO(mld, "TAS not enabled in FW\n"); 351 return; 352 } 353 354 ret = iwl_bios_get_tas_table(&mld->fwrt, &data); 355 if (ret < 0) { 356 IWL_DEBUG_RADIO(mld, 357 "TAS table invalid or unavailable. (%d)\n", 358 ret); 359 return; 360 } 361 362 if (!iwl_is_tas_approved()) { 363 IWL_DEBUG_RADIO(mld, 364 "System vendor '%s' is not in the approved list, disabling TAS in US and Canada.\n", 365 dmi_get_system_info(DMI_SYS_VENDOR) ?: "<unknown>"); 366 if ((!iwl_add_mcc_to_tas_block_list(data.block_list_array, 367 &data.block_list_size, 368 IWL_MCC_US)) || 369 (!iwl_add_mcc_to_tas_block_list(data.block_list_array, 370 &data.block_list_size, 371 IWL_MCC_CANADA))) { 372 IWL_DEBUG_RADIO(mld, 373 "Unable to add US/Canada to TAS block list, disabling TAS\n"); 374 return; 375 } 376 } else { 377 IWL_DEBUG_RADIO(mld, 378 "System vendor '%s' is in the approved list.\n", 379 dmi_get_system_info(DMI_SYS_VENDOR) ?: "<unknown>"); 380 } 381 382 cmd.block_list_size = cpu_to_le16(data.block_list_size); 383 for (u8 i = 0; i < data.block_list_size; i++) 384 cmd.block_list_array[i] = 385 cpu_to_le16(data.block_list_array[i]); 386 cmd.tas_config_info.table_source = data.table_source; 387 cmd.tas_config_info.table_revision = data.table_revision; 388 cmd.tas_config_info.value = cpu_to_le32(data.tas_selection); 389 390 ret = iwl_mld_send_cmd_pdu(mld, cmd_id, &cmd); 391 if (ret) 392 IWL_DEBUG_RADIO(mld, "failed to send TAS_CONFIG (%d)\n", ret); 393 } 394