diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/fw/smem.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/smem.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/smem.c b/drivers/net/wireless/intel/iwlwifi/fw/smem.c new file mode 100644 index 000000000..557ee47bf --- /dev/null +++ b/drivers/net/wireless/intel/iwlwifi/fw/smem.c @@ -0,0 +1,163 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. + * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH + * Copyright(c) 2016 - 2017 Intel Deutschland GmbH + * Copyright(c) 2018 - 2019 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution + * in the file called COPYING. + * + * Contact Information: + * Intel Linux Wireless <linuxwifi@intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. + * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH + * Copyright(c) 2016 - 2017 Intel Deutschland GmbH + * Copyright(c) 2018 - 2019 Intel Corporation + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ +#include "iwl-drv.h" +#include "runtime.h" +#include "fw/api/commands.h" + +static void iwl_parse_shared_mem_22000(struct iwl_fw_runtime *fwrt, + struct iwl_rx_packet *pkt) +{ + struct iwl_shared_mem_cfg *mem_cfg = (void *)pkt->data; + int i, lmac; + int lmac_num = le32_to_cpu(mem_cfg->lmac_num); + + if (WARN_ON(lmac_num > ARRAY_SIZE(mem_cfg->lmac_smem))) + return; + + fwrt->smem_cfg.num_lmacs = lmac_num; + fwrt->smem_cfg.num_txfifo_entries = + ARRAY_SIZE(mem_cfg->lmac_smem[0].txfifo_size); + fwrt->smem_cfg.rxfifo2_size = le32_to_cpu(mem_cfg->rxfifo2_size); + + for (lmac = 0; lmac < lmac_num; lmac++) { + struct iwl_shared_mem_lmac_cfg *lmac_cfg = + &mem_cfg->lmac_smem[lmac]; + + for (i = 0; i < ARRAY_SIZE(lmac_cfg->txfifo_size); i++) + fwrt->smem_cfg.lmac[lmac].txfifo_size[i] = + le32_to_cpu(lmac_cfg->txfifo_size[i]); + fwrt->smem_cfg.lmac[lmac].rxfifo1_size = + le32_to_cpu(lmac_cfg->rxfifo1_size); + } +} + +static void iwl_parse_shared_mem(struct iwl_fw_runtime *fwrt, + struct iwl_rx_packet *pkt) +{ + struct iwl_shared_mem_cfg_v2 *mem_cfg = (void *)pkt->data; + int i; + + fwrt->smem_cfg.num_lmacs = 1; + + fwrt->smem_cfg.num_txfifo_entries = ARRAY_SIZE(mem_cfg->txfifo_size); + for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) + fwrt->smem_cfg.lmac[0].txfifo_size[i] = + le32_to_cpu(mem_cfg->txfifo_size[i]); + + fwrt->smem_cfg.lmac[0].rxfifo1_size = + le32_to_cpu(mem_cfg->rxfifo_size[0]); + fwrt->smem_cfg.rxfifo2_size = le32_to_cpu(mem_cfg->rxfifo_size[1]); + + /* new API has more data, from rxfifo_addr field and on */ + if (fw_has_capa(&fwrt->fw->ucode_capa, + IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) { + BUILD_BUG_ON(sizeof(fwrt->smem_cfg.internal_txfifo_size) != + sizeof(mem_cfg->internal_txfifo_size)); + + fwrt->smem_cfg.internal_txfifo_addr = + le32_to_cpu(mem_cfg->internal_txfifo_addr); + + for (i = 0; + i < ARRAY_SIZE(fwrt->smem_cfg.internal_txfifo_size); + i++) + fwrt->smem_cfg.internal_txfifo_size[i] = + le32_to_cpu(mem_cfg->internal_txfifo_size[i]); + } +} + +void iwl_get_shared_mem_conf(struct iwl_fw_runtime *fwrt) +{ + struct iwl_host_cmd cmd = { + .flags = CMD_WANT_SKB, + .data = { NULL, }, + .len = { 0, }, + }; + struct iwl_rx_packet *pkt; + int ret; + + if (fw_has_capa(&fwrt->fw->ucode_capa, + IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) + cmd.id = iwl_cmd_id(SHARED_MEM_CFG_CMD, SYSTEM_GROUP, 0); + else + cmd.id = SHARED_MEM_CFG; + + ret = iwl_trans_send_cmd(fwrt->trans, &cmd); + + if (ret) { + WARN(ret != -ERFKILL, + "Could not send the SMEM command: %d\n", ret); + return; + } + + pkt = cmd.resp_pkt; + if (fwrt->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22000) + iwl_parse_shared_mem_22000(fwrt, pkt); + else + iwl_parse_shared_mem(fwrt, pkt); + + IWL_DEBUG_INFO(fwrt, "SHARED MEM CFG: got memory offsets/sizes\n"); + + iwl_free_resp(&cmd); +} +IWL_EXPORT_SYMBOL(iwl_get_shared_mem_conf); |