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