1/****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 9 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 10 * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * The full GNU General Public License is included in this distribution 22 * in the file called COPYING. 23 * 24 * Contact Information: 25 * Intel Linux Wireless <linuxwifi@intel.com> 26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 27 * 28 * BSD LICENSE 29 * 30 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 31 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 32 * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation 33 * All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 39 * * Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * * Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in 43 * the documentation and/or other materials provided with the 44 * distribution. 45 * * Neither the name Intel Corporation nor the names of its 46 * contributors may be used to endorse or promote products derived 47 * from this software without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 50 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 51 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 52 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 53 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 54 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 55 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 * 61 *****************************************************************************/ 62#include "iwl-drv.h" 63#include "runtime.h" 64#include "fw/api/commands.h" 65 66static void iwl_parse_shared_mem_22000(struct iwl_fw_runtime *fwrt, 67 struct iwl_rx_packet *pkt) 68{ 69 struct iwl_shared_mem_cfg *mem_cfg = (void *)pkt->data; 70 int i, lmac; 71 int lmac_num = le32_to_cpu(mem_cfg->lmac_num); 72 u8 api_ver = iwl_fw_lookup_notif_ver(fwrt->fw, SYSTEM_GROUP, 73 SHARED_MEM_CFG_CMD, 0); 74 75 if (WARN_ON(lmac_num > ARRAY_SIZE(mem_cfg->lmac_smem))) 76 return; 77 78 fwrt->smem_cfg.num_lmacs = lmac_num; 79 fwrt->smem_cfg.num_txfifo_entries = 80 ARRAY_SIZE(mem_cfg->lmac_smem[0].txfifo_size); 81 fwrt->smem_cfg.rxfifo2_size = le32_to_cpu(mem_cfg->rxfifo2_size); 82 83 if (api_ver >= 4 && 84 !WARN_ON_ONCE(iwl_rx_packet_payload_len(pkt) < sizeof(*mem_cfg))) { 85 fwrt->smem_cfg.rxfifo2_control_size = 86 le32_to_cpu(mem_cfg->rxfifo2_control_size); 87 } 88 89 for (lmac = 0; lmac < lmac_num; lmac++) { 90 struct iwl_shared_mem_lmac_cfg *lmac_cfg = 91 &mem_cfg->lmac_smem[lmac]; 92 93 for (i = 0; i < ARRAY_SIZE(lmac_cfg->txfifo_size); i++) 94 fwrt->smem_cfg.lmac[lmac].txfifo_size[i] = 95 le32_to_cpu(lmac_cfg->txfifo_size[i]); 96 fwrt->smem_cfg.lmac[lmac].rxfifo1_size = 97 le32_to_cpu(lmac_cfg->rxfifo1_size); 98 } 99} 100 101static void iwl_parse_shared_mem(struct iwl_fw_runtime *fwrt, 102 struct iwl_rx_packet *pkt) 103{ 104 struct iwl_shared_mem_cfg_v2 *mem_cfg = (void *)pkt->data; 105 int i; 106 107 fwrt->smem_cfg.num_lmacs = 1; 108 109 fwrt->smem_cfg.num_txfifo_entries = ARRAY_SIZE(mem_cfg->txfifo_size); 110 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) 111 fwrt->smem_cfg.lmac[0].txfifo_size[i] = 112 le32_to_cpu(mem_cfg->txfifo_size[i]); 113 114 fwrt->smem_cfg.lmac[0].rxfifo1_size = 115 le32_to_cpu(mem_cfg->rxfifo_size[0]); 116 fwrt->smem_cfg.rxfifo2_size = le32_to_cpu(mem_cfg->rxfifo_size[1]); 117 118 /* new API has more data, from rxfifo_addr field and on */ 119 if (fw_has_capa(&fwrt->fw->ucode_capa, 120 IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) { 121 BUILD_BUG_ON(sizeof(fwrt->smem_cfg.internal_txfifo_size) != 122 sizeof(mem_cfg->internal_txfifo_size)); 123 124 fwrt->smem_cfg.internal_txfifo_addr = 125 le32_to_cpu(mem_cfg->internal_txfifo_addr); 126 127 for (i = 0; 128 i < ARRAY_SIZE(fwrt->smem_cfg.internal_txfifo_size); 129 i++) 130 fwrt->smem_cfg.internal_txfifo_size[i] = 131 le32_to_cpu(mem_cfg->internal_txfifo_size[i]); 132 } 133} 134 135void iwl_get_shared_mem_conf(struct iwl_fw_runtime *fwrt) 136{ 137 struct iwl_host_cmd cmd = { 138 .flags = CMD_WANT_SKB, 139 .data = { NULL, }, 140 .len = { 0, }, 141 }; 142 struct iwl_rx_packet *pkt; 143 int ret; 144 145 if (fw_has_capa(&fwrt->fw->ucode_capa, 146 IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) 147 cmd.id = iwl_cmd_id(SHARED_MEM_CFG_CMD, SYSTEM_GROUP, 0); 148 else 149 cmd.id = SHARED_MEM_CFG; 150 151 ret = iwl_trans_send_cmd(fwrt->trans, &cmd); 152 153 if (ret) { 154 WARN(ret != -ERFKILL, 155 "Could not send the SMEM command: %d\n", ret); 156 return; 157 } 158 159 pkt = cmd.resp_pkt; 160 if (fwrt->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) 161 iwl_parse_shared_mem_22000(fwrt, pkt); 162 else 163 iwl_parse_shared_mem(fwrt, pkt); 164 165 IWL_DEBUG_INFO(fwrt, "SHARED MEM CFG: got memory offsets/sizes\n"); 166 167 iwl_free_resp(&cmd); 168} 169IWL_EXPORT_SYMBOL(iwl_get_shared_mem_conf); 170