115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
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/*
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* Copyright (C) 2012-2014, 2018-2021 Intel Corporation
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* Copyright (C) 2013-2015 Intel Mobile Communications GmbH
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* Copyright (C) 2016-2017 Intel Deutschland GmbH
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*/
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#include "iwl-drv.h"
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#include "runtime.h"
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#include "fw/api/commands.h"
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static void iwl_parse_shared_mem_22000(struct iwl_fw_runtime *fwrt,
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struct iwl_rx_packet *pkt)
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{
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struct iwl_shared_mem_cfg *mem_cfg = (void *)pkt->data;
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int i, lmac;
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int lmac_num = le32_to_cpu(mem_cfg->lmac_num);
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u8 api_ver = iwl_fw_lookup_notif_ver(fwrt->fw, SYSTEM_GROUP,
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SHARED_MEM_CFG_CMD, 0);
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if (WARN_ON(lmac_num > ARRAY_SIZE(mem_cfg->lmac_smem)))
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return;
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fwrt->smem_cfg.num_lmacs = lmac_num;
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fwrt->smem_cfg.num_txfifo_entries =
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ARRAY_SIZE(mem_cfg->lmac_smem[0].txfifo_size);
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fwrt->smem_cfg.rxfifo2_size = le32_to_cpu(mem_cfg->rxfifo2_size);
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if (api_ver >= 4 &&
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!WARN_ON_ONCE(iwl_rx_packet_payload_len(pkt) < sizeof(*mem_cfg))) {
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fwrt->smem_cfg.rxfifo2_control_size =
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le32_to_cpu(mem_cfg->rxfifo2_control_size);
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}
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for (lmac = 0; lmac < lmac_num; lmac++) {
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struct iwl_shared_mem_lmac_cfg *lmac_cfg =
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&mem_cfg->lmac_smem[lmac];
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for (i = 0; i < ARRAY_SIZE(lmac_cfg->txfifo_size); i++)
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fwrt->smem_cfg.lmac[lmac].txfifo_size[i] =
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le32_to_cpu(lmac_cfg->txfifo_size[i]);
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fwrt->smem_cfg.lmac[lmac].rxfifo1_size =
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le32_to_cpu(lmac_cfg->rxfifo1_size);
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}
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}
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static void iwl_parse_shared_mem(struct iwl_fw_runtime *fwrt,
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struct iwl_rx_packet *pkt)
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{
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struct iwl_shared_mem_cfg_v2 *mem_cfg = (void *)pkt->data;
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int i;
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fwrt->smem_cfg.num_lmacs = 1;
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fwrt->smem_cfg.num_txfifo_entries = ARRAY_SIZE(mem_cfg->txfifo_size);
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for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++)
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fwrt->smem_cfg.lmac[0].txfifo_size[i] =
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le32_to_cpu(mem_cfg->txfifo_size[i]);
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fwrt->smem_cfg.lmac[0].rxfifo1_size =
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le32_to_cpu(mem_cfg->rxfifo_size[0]);
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fwrt->smem_cfg.rxfifo2_size = le32_to_cpu(mem_cfg->rxfifo_size[1]);
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/* new API has more data, from rxfifo_addr field and on */
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if (fw_has_capa(&fwrt->fw->ucode_capa,
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IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG)) {
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BUILD_BUG_ON(sizeof(fwrt->smem_cfg.internal_txfifo_size) !=
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sizeof(mem_cfg->internal_txfifo_size));
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fwrt->smem_cfg.internal_txfifo_addr =
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le32_to_cpu(mem_cfg->internal_txfifo_addr);
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for (i = 0;
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i < ARRAY_SIZE(fwrt->smem_cfg.internal_txfifo_size);
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i++)
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fwrt->smem_cfg.internal_txfifo_size[i] =
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le32_to_cpu(mem_cfg->internal_txfifo_size[i]);
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}
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}
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void iwl_get_shared_mem_conf(struct iwl_fw_runtime *fwrt)
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{
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struct iwl_host_cmd cmd = {
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.flags = CMD_WANT_SKB,
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.data = { NULL, },
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.len = { 0, },
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};
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struct iwl_rx_packet *pkt;
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int ret;
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if (fw_has_capa(&fwrt->fw->ucode_capa,
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IWL_UCODE_TLV_CAPA_EXTEND_SHARED_MEM_CFG))
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cmd.id = WIDE_ID(SYSTEM_GROUP, SHARED_MEM_CFG_CMD);
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else
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cmd.id = SHARED_MEM_CFG;
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ret = iwl_trans_send_cmd(fwrt->trans, &cmd);
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if (ret) {
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WARN(ret != -ERFKILL,
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"Could not send the SMEM command: %d\n", ret);
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return;
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}
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pkt = cmd.resp_pkt;
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if (fwrt->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000)
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iwl_parse_shared_mem_22000(fwrt, pkt);
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else
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iwl_parse_shared_mem(fwrt, pkt);
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IWL_DEBUG_INFO(fwrt, "SHARED MEM CFG: got memory offsets/sizes\n");
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iwl_free_resp(&cmd);
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}
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IWL_EXPORT_SYMBOL(iwl_get_shared_mem_conf);
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