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 - 2019 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 - 2019 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:
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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
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57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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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 int ret;
138
139 if (fw_has_capa(&fwrt->fw->ucode_capa,
140 IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG))
141 cmd.id = iwl_cmd_id(SHARED_MEM_CFG_CMD, SYSTEM_GROUP, 0);
142 else
143 cmd.id = SHARED_MEM_CFG;
144
145 ret = iwl_trans_send_cmd(fwrt->trans, &cmd);
146
147 if (ret) {
148 WARN(ret != -ERFKILL,
149 "Could not send the SMEM command: %d\n", ret);
150 return;
151 }
152
153 pkt = cmd.resp_pkt;
154 if (fwrt->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000)
155 iwl_parse_shared_mem_22000(fwrt, pkt);
156 else
157 iwl_parse_shared_mem(fwrt, pkt);
158
159 IWL_DEBUG_INFO(fwrt, "SHARED MEM CFG: got memory offsets/sizes\n");
160
161 iwl_free_resp(&cmd);
162 }
163 IWL_EXPORT_SYMBOL(iwl_get_shared_mem_conf);