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 * 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) 2012 - 2014 Intel Corporation. All rights reserved. 31 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 32 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 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 66 static void iwl_parse_shared_mem_a000(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 73 if (WARN_ON(lmac_num > ARRAY_SIZE(mem_cfg->lmac_smem))) 74 return; 75 76 fwrt->smem_cfg.num_lmacs = lmac_num; 77 fwrt->smem_cfg.num_txfifo_entries = 78 ARRAY_SIZE(mem_cfg->lmac_smem[0].txfifo_size); 79 fwrt->smem_cfg.rxfifo2_size = le32_to_cpu(mem_cfg->rxfifo2_size); 80 81 for (lmac = 0; lmac < lmac_num; lmac++) { 82 struct iwl_shared_mem_lmac_cfg *lmac_cfg = 83 &mem_cfg->lmac_smem[lmac]; 84 85 for (i = 0; i < ARRAY_SIZE(lmac_cfg->txfifo_size); i++) 86 fwrt->smem_cfg.lmac[lmac].txfifo_size[i] = 87 le32_to_cpu(lmac_cfg->txfifo_size[i]); 88 fwrt->smem_cfg.lmac[lmac].rxfifo1_size = 89 le32_to_cpu(lmac_cfg->rxfifo1_size); 90 } 91 } 92 93 static void iwl_parse_shared_mem(struct iwl_fw_runtime *fwrt, 94 struct iwl_rx_packet *pkt) 95 { 96 struct iwl_shared_mem_cfg_v2 *mem_cfg = (void *)pkt->data; 97 int i; 98 99 fwrt->smem_cfg.num_lmacs = 1; 100 101 fwrt->smem_cfg.num_txfifo_entries = ARRAY_SIZE(mem_cfg->txfifo_size); 102 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) 103 fwrt->smem_cfg.lmac[0].txfifo_size[i] = 104 le32_to_cpu(mem_cfg->txfifo_size[i]); 105 106 fwrt->smem_cfg.lmac[0].rxfifo1_size = 107 le32_to_cpu(mem_cfg->rxfifo_size[0]); 108 fwrt->smem_cfg.rxfifo2_size = le32_to_cpu(mem_cfg->rxfifo_size[1]); 109 110 /* new API has more data, from rxfifo_addr field and on */ 111 if (fw_has_capa(&fwrt->fw->ucode_capa, 112 IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) { 113 BUILD_BUG_ON(sizeof(fwrt->smem_cfg.internal_txfifo_size) != 114 sizeof(mem_cfg->internal_txfifo_size)); 115 116 fwrt->smem_cfg.internal_txfifo_addr = 117 le32_to_cpu(mem_cfg->internal_txfifo_addr); 118 119 for (i = 0; 120 i < ARRAY_SIZE(fwrt->smem_cfg.internal_txfifo_size); 121 i++) 122 fwrt->smem_cfg.internal_txfifo_size[i] = 123 le32_to_cpu(mem_cfg->internal_txfifo_size[i]); 124 } 125 } 126 127 void iwl_get_shared_mem_conf(struct iwl_fw_runtime *fwrt) 128 { 129 struct iwl_host_cmd cmd = { 130 .flags = CMD_WANT_SKB, 131 .data = { NULL, }, 132 .len = { 0, }, 133 }; 134 struct iwl_rx_packet *pkt; 135 136 if (fw_has_capa(&fwrt->fw->ucode_capa, 137 IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) 138 cmd.id = iwl_cmd_id(SHARED_MEM_CFG_CMD, SYSTEM_GROUP, 0); 139 else 140 cmd.id = SHARED_MEM_CFG; 141 142 if (WARN_ON(iwl_trans_send_cmd(fwrt->trans, &cmd))) 143 return; 144 145 pkt = cmd.resp_pkt; 146 if (fwrt->trans->cfg->device_family == IWL_DEVICE_FAMILY_A000) 147 iwl_parse_shared_mem_a000(fwrt, pkt); 148 else 149 iwl_parse_shared_mem(fwrt, pkt); 150 151 IWL_DEBUG_INFO(fwrt, "SHARED MEM CFG: got memory offsets/sizes\n"); 152 153 iwl_free_resp(&cmd); 154 } 155 IWL_EXPORT_SYMBOL(iwl_get_shared_mem_conf); 156