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751 lines
16 KiB
751 lines
16 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* This file is part of wl1271 |
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* |
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* Copyright (C) 2009 Nokia Corporation |
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* |
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* Contact: Luciano Coelho <[email protected]> |
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*/ |
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|
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/slab.h> |
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|
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#include "debug.h" |
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#include "init.h" |
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#include "wl12xx_80211.h" |
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#include "acx.h" |
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#include "cmd.h" |
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#include "tx.h" |
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#include "io.h" |
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#include "hw_ops.h" |
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int wl1271_init_templates_config(struct wl1271 *wl) |
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{ |
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int ret, i; |
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size_t max_size; |
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|
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/* send empty templates for fw memory reservation */ |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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wl->scan_templ_id_2_4, NULL, |
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WL1271_CMD_TEMPL_MAX_SIZE, |
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0, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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wl->scan_templ_id_5, |
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NULL, WL1271_CMD_TEMPL_MAX_SIZE, 0, |
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WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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if (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL) { |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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wl->sched_scan_templ_id_2_4, |
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NULL, |
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WL1271_CMD_TEMPL_MAX_SIZE, |
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0, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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wl->sched_scan_templ_id_5, |
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NULL, |
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WL1271_CMD_TEMPL_MAX_SIZE, |
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0, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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} |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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CMD_TEMPL_NULL_DATA, NULL, |
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sizeof(struct wl12xx_null_data_template), |
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0, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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CMD_TEMPL_PS_POLL, NULL, |
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sizeof(struct wl12xx_ps_poll_template), |
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0, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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CMD_TEMPL_QOS_NULL_DATA, NULL, |
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sizeof |
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(struct ieee80211_qos_hdr), |
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0, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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CMD_TEMPL_PROBE_RESPONSE, NULL, |
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WL1271_CMD_TEMPL_DFLT_SIZE, |
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0, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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CMD_TEMPL_BEACON, NULL, |
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WL1271_CMD_TEMPL_DFLT_SIZE, |
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0, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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max_size = sizeof(struct wl12xx_arp_rsp_template) + |
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WL1271_EXTRA_SPACE_MAX; |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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CMD_TEMPL_ARP_RSP, NULL, |
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max_size, |
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0, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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/* |
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* Put very large empty placeholders for all templates. These |
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* reserve memory for later. |
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*/ |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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CMD_TEMPL_AP_PROBE_RESPONSE, NULL, |
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WL1271_CMD_TEMPL_MAX_SIZE, |
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0, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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CMD_TEMPL_AP_BEACON, NULL, |
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WL1271_CMD_TEMPL_MAX_SIZE, |
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0, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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CMD_TEMPL_DEAUTH_AP, NULL, |
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sizeof |
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(struct wl12xx_disconn_template), |
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0, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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for (i = 0; i < WLCORE_MAX_KLV_TEMPLATES; i++) { |
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ret = wl1271_cmd_template_set(wl, WL12XX_INVALID_ROLE_ID, |
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CMD_TEMPL_KLV, NULL, |
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sizeof(struct ieee80211_qos_hdr), |
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i, WL1271_RATE_AUTOMATIC); |
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if (ret < 0) |
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return ret; |
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} |
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return 0; |
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} |
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static int wl1271_ap_init_deauth_template(struct wl1271 *wl, |
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struct wl12xx_vif *wlvif) |
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{ |
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struct wl12xx_disconn_template *tmpl; |
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int ret; |
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u32 rate; |
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tmpl = kzalloc(sizeof(*tmpl), GFP_KERNEL); |
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if (!tmpl) { |
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ret = -ENOMEM; |
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goto out; |
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} |
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tmpl->header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
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IEEE80211_STYPE_DEAUTH); |
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rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set); |
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ret = wl1271_cmd_template_set(wl, wlvif->role_id, |
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CMD_TEMPL_DEAUTH_AP, |
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tmpl, sizeof(*tmpl), 0, rate); |
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out: |
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kfree(tmpl); |
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return ret; |
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} |
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static int wl1271_ap_init_null_template(struct wl1271 *wl, |
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struct ieee80211_vif *vif) |
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{ |
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struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); |
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struct ieee80211_hdr_3addr *nullfunc; |
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int ret; |
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u32 rate; |
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nullfunc = kzalloc(sizeof(*nullfunc), GFP_KERNEL); |
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if (!nullfunc) { |
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ret = -ENOMEM; |
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goto out; |
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} |
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nullfunc->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | |
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IEEE80211_STYPE_NULLFUNC | |
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IEEE80211_FCTL_FROMDS); |
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/* nullfunc->addr1 is filled by FW */ |
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memcpy(nullfunc->addr2, vif->addr, ETH_ALEN); |
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memcpy(nullfunc->addr3, vif->addr, ETH_ALEN); |
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rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set); |
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ret = wl1271_cmd_template_set(wl, wlvif->role_id, |
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CMD_TEMPL_NULL_DATA, nullfunc, |
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sizeof(*nullfunc), 0, rate); |
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out: |
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kfree(nullfunc); |
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return ret; |
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} |
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static int wl1271_ap_init_qos_null_template(struct wl1271 *wl, |
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struct ieee80211_vif *vif) |
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{ |
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struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); |
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struct ieee80211_qos_hdr *qosnull; |
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int ret; |
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u32 rate; |
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qosnull = kzalloc(sizeof(*qosnull), GFP_KERNEL); |
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if (!qosnull) { |
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ret = -ENOMEM; |
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goto out; |
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} |
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qosnull->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | |
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IEEE80211_STYPE_QOS_NULLFUNC | |
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IEEE80211_FCTL_FROMDS); |
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/* qosnull->addr1 is filled by FW */ |
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memcpy(qosnull->addr2, vif->addr, ETH_ALEN); |
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memcpy(qosnull->addr3, vif->addr, ETH_ALEN); |
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rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set); |
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ret = wl1271_cmd_template_set(wl, wlvif->role_id, |
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CMD_TEMPL_QOS_NULL_DATA, qosnull, |
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sizeof(*qosnull), 0, rate); |
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out: |
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kfree(qosnull); |
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return ret; |
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} |
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static int wl12xx_init_rx_config(struct wl1271 *wl) |
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{ |
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int ret; |
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ret = wl1271_acx_rx_msdu_life_time(wl); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static int wl12xx_init_phy_vif_config(struct wl1271 *wl, |
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struct wl12xx_vif *wlvif) |
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{ |
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int ret; |
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ret = wl1271_acx_slot(wl, wlvif, DEFAULT_SLOT_TIME); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_acx_service_period_timeout(wl, wlvif); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_acx_rts_threshold(wl, wlvif, wl->hw->wiphy->rts_threshold); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static int wl1271_init_sta_beacon_filter(struct wl1271 *wl, |
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struct wl12xx_vif *wlvif) |
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{ |
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int ret; |
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ret = wl1271_acx_beacon_filter_table(wl, wlvif); |
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if (ret < 0) |
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return ret; |
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/* disable beacon filtering until we get the first beacon */ |
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ret = wl1271_acx_beacon_filter_opt(wl, wlvif, false); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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int wl1271_init_pta(struct wl1271 *wl) |
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{ |
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int ret; |
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ret = wl12xx_acx_sg_cfg(wl); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_acx_sg_enable(wl, wl->sg_enabled); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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int wl1271_init_energy_detection(struct wl1271 *wl) |
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{ |
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int ret; |
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ret = wl1271_acx_cca_threshold(wl); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static int wl1271_init_beacon_broadcast(struct wl1271 *wl, |
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struct wl12xx_vif *wlvif) |
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{ |
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int ret; |
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ret = wl1271_acx_bcn_dtim_options(wl, wlvif); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static int wl12xx_init_fwlog(struct wl1271 *wl) |
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{ |
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int ret; |
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if (wl->quirks & WLCORE_QUIRK_FWLOG_NOT_IMPLEMENTED) |
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return 0; |
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ret = wl12xx_cmd_config_fwlog(wl); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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/* generic sta initialization (non vif-specific) */ |
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int wl1271_sta_hw_init(struct wl1271 *wl, struct wl12xx_vif *wlvif) |
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{ |
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int ret; |
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/* PS config */ |
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ret = wl12xx_acx_config_ps(wl, wlvif); |
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if (ret < 0) |
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return ret; |
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/* FM WLAN coexistence */ |
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ret = wl1271_acx_fm_coex(wl); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_acx_sta_rate_policies(wl, wlvif); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static int wl1271_sta_hw_init_post_mem(struct wl1271 *wl, |
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struct ieee80211_vif *vif) |
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{ |
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struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); |
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int ret; |
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/* disable the keep-alive feature */ |
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ret = wl1271_acx_keep_alive_mode(wl, wlvif, false); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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/* generic ap initialization (non vif-specific) */ |
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static int wl1271_ap_hw_init(struct wl1271 *wl, struct wl12xx_vif *wlvif) |
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{ |
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int ret; |
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ret = wl1271_init_ap_rates(wl, wlvif); |
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if (ret < 0) |
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return ret; |
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/* configure AP sleep, if enabled */ |
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ret = wlcore_hw_ap_sleep(wl); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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int wl1271_ap_init_templates(struct wl1271 *wl, struct ieee80211_vif *vif) |
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{ |
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struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); |
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int ret; |
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ret = wl1271_ap_init_deauth_template(wl, wlvif); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_ap_init_null_template(wl, vif); |
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if (ret < 0) |
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return ret; |
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ret = wl1271_ap_init_qos_null_template(wl, vif); |
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if (ret < 0) |
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return ret; |
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/* |
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* when operating as AP we want to receive external beacons for |
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* configuring ERP protection. |
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*/ |
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ret = wl1271_acx_beacon_filter_opt(wl, wlvif, false); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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static int wl1271_ap_hw_init_post_mem(struct wl1271 *wl, |
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struct ieee80211_vif *vif) |
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{ |
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return wl1271_ap_init_templates(wl, vif); |
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} |
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int wl1271_init_ap_rates(struct wl1271 *wl, struct wl12xx_vif *wlvif) |
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{ |
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int i, ret; |
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struct conf_tx_rate_class rc; |
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u32 supported_rates; |
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wl1271_debug(DEBUG_AP, "AP basic rate set: 0x%x", |
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wlvif->basic_rate_set); |
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if (wlvif->basic_rate_set == 0) |
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return -EINVAL; |
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rc.enabled_rates = wlvif->basic_rate_set; |
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rc.long_retry_limit = 10; |
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rc.short_retry_limit = 10; |
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rc.aflags = 0; |
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ret = wl1271_acx_ap_rate_policy(wl, &rc, wlvif->ap.mgmt_rate_idx); |
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if (ret < 0) |
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return ret; |
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/* use the min basic rate for AP broadcast/multicast */ |
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rc.enabled_rates = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set); |
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rc.short_retry_limit = 10; |
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rc.long_retry_limit = 10; |
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rc.aflags = 0; |
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ret = wl1271_acx_ap_rate_policy(wl, &rc, wlvif->ap.bcast_rate_idx); |
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if (ret < 0) |
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return ret; |
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/* |
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* If the basic rates contain OFDM rates, use OFDM only |
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* rates for unicast TX as well. Else use all supported rates. |
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*/ |
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if (wl->ofdm_only_ap && (wlvif->basic_rate_set & CONF_TX_OFDM_RATES)) |
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supported_rates = CONF_TX_OFDM_RATES; |
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else |
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supported_rates = CONF_TX_ENABLED_RATES; |
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|
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/* unconditionally enable HT rates */ |
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supported_rates |= CONF_TX_MCS_RATES; |
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|
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/* get extra MIMO or wide-chan rates where the HW supports it */ |
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supported_rates |= wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif); |
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|
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/* configure unicast TX rate classes */ |
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for (i = 0; i < wl->conf.tx.ac_conf_count; i++) { |
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rc.enabled_rates = supported_rates; |
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rc.short_retry_limit = 10; |
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rc.long_retry_limit = 10; |
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rc.aflags = 0; |
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ret = wl1271_acx_ap_rate_policy(wl, &rc, |
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wlvif->ap.ucast_rate_idx[i]); |
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if (ret < 0) |
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return ret; |
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} |
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return 0; |
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} |
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static int wl1271_set_ba_policies(struct wl1271 *wl, struct wl12xx_vif *wlvif) |
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{ |
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/* Reset the BA RX indicators */ |
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wlvif->ba_allowed = true; |
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wl->ba_rx_session_count = 0; |
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|
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/* BA is supported in STA/AP modes */ |
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if (wlvif->bss_type != BSS_TYPE_AP_BSS && |
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wlvif->bss_type != BSS_TYPE_STA_BSS) { |
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wlvif->ba_support = false; |
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return 0; |
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} |
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wlvif->ba_support = true; |
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|
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/* 802.11n initiator BA session setting */ |
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return wl12xx_acx_set_ba_initiator_policy(wl, wlvif); |
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} |
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|
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/* vif-specifc initialization */ |
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static int wl12xx_init_sta_role(struct wl1271 *wl, struct wl12xx_vif *wlvif) |
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{ |
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int ret; |
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ret = wl1271_acx_group_address_tbl(wl, wlvif, true, NULL, 0); |
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if (ret < 0) |
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return ret; |
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|
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/* Initialize connection monitoring thresholds */ |
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ret = wl1271_acx_conn_monit_params(wl, wlvif, false); |
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if (ret < 0) |
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return ret; |
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|
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/* Beacon filtering */ |
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ret = wl1271_init_sta_beacon_filter(wl, wlvif); |
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if (ret < 0) |
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return ret; |
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|
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/* Beacons and broadcast settings */ |
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ret = wl1271_init_beacon_broadcast(wl, wlvif); |
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if (ret < 0) |
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return ret; |
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|
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/* Configure rssi/snr averaging weights */ |
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ret = wl1271_acx_rssi_snr_avg_weights(wl, wlvif); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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/* vif-specific initialization */ |
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static int wl12xx_init_ap_role(struct wl1271 *wl, struct wl12xx_vif *wlvif) |
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{ |
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int ret; |
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ret = wl1271_acx_ap_max_tx_retry(wl, wlvif); |
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if (ret < 0) |
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return ret; |
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|
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/* initialize Tx power */ |
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ret = wl1271_acx_tx_power(wl, wlvif, wlvif->power_level); |
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if (ret < 0) |
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return ret; |
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|
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if (wl->radar_debug_mode) |
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wlcore_cmd_generic_cfg(wl, wlvif, |
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WLCORE_CFG_FEATURE_RADAR_DEBUG, |
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wl->radar_debug_mode, 0); |
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|
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return 0; |
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} |
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int wl1271_init_vif_specific(struct wl1271 *wl, struct ieee80211_vif *vif) |
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{ |
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struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif); |
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struct conf_tx_ac_category *conf_ac; |
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struct conf_tx_tid *conf_tid; |
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bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS); |
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int ret, i; |
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|
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/* consider all existing roles before configuring psm. */ |
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|
|
if (wl->ap_count == 0 && is_ap) { /* first AP */ |
|
ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_ELP); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* unmask ap events */ |
|
wl->event_mask |= wl->ap_event_mask; |
|
ret = wl1271_event_unmask(wl); |
|
if (ret < 0) |
|
return ret; |
|
/* first STA, no APs */ |
|
} else if (wl->sta_count == 0 && wl->ap_count == 0 && !is_ap) { |
|
u8 sta_auth = wl->conf.conn.sta_sleep_auth; |
|
/* Configure for power according to debugfs */ |
|
if (sta_auth != WL1271_PSM_ILLEGAL) |
|
ret = wl1271_acx_sleep_auth(wl, sta_auth); |
|
/* Configure for ELP power saving */ |
|
else |
|
ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_ELP); |
|
|
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
/* Mode specific init */ |
|
if (is_ap) { |
|
ret = wl1271_ap_hw_init(wl, wlvif); |
|
if (ret < 0) |
|
return ret; |
|
|
|
ret = wl12xx_init_ap_role(wl, wlvif); |
|
if (ret < 0) |
|
return ret; |
|
} else { |
|
ret = wl1271_sta_hw_init(wl, wlvif); |
|
if (ret < 0) |
|
return ret; |
|
|
|
ret = wl12xx_init_sta_role(wl, wlvif); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
wl12xx_init_phy_vif_config(wl, wlvif); |
|
|
|
/* Default TID/AC configuration */ |
|
BUG_ON(wl->conf.tx.tid_conf_count != wl->conf.tx.ac_conf_count); |
|
for (i = 0; i < wl->conf.tx.tid_conf_count; i++) { |
|
conf_ac = &wl->conf.tx.ac_conf[i]; |
|
ret = wl1271_acx_ac_cfg(wl, wlvif, conf_ac->ac, |
|
conf_ac->cw_min, conf_ac->cw_max, |
|
conf_ac->aifsn, conf_ac->tx_op_limit); |
|
if (ret < 0) |
|
return ret; |
|
|
|
conf_tid = &wl->conf.tx.tid_conf[i]; |
|
ret = wl1271_acx_tid_cfg(wl, wlvif, |
|
conf_tid->queue_id, |
|
conf_tid->channel_type, |
|
conf_tid->tsid, |
|
conf_tid->ps_scheme, |
|
conf_tid->ack_policy, |
|
conf_tid->apsd_conf[0], |
|
conf_tid->apsd_conf[1]); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
/* Configure HW encryption */ |
|
ret = wl1271_acx_feature_cfg(wl, wlvif); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* Mode specific init - post mem init */ |
|
if (is_ap) |
|
ret = wl1271_ap_hw_init_post_mem(wl, vif); |
|
else |
|
ret = wl1271_sta_hw_init_post_mem(wl, vif); |
|
|
|
if (ret < 0) |
|
return ret; |
|
|
|
/* Configure initiator BA sessions policies */ |
|
ret = wl1271_set_ba_policies(wl, wlvif); |
|
if (ret < 0) |
|
return ret; |
|
|
|
ret = wlcore_hw_init_vif(wl, wlvif); |
|
if (ret < 0) |
|
return ret; |
|
|
|
return 0; |
|
} |
|
|
|
int wl1271_hw_init(struct wl1271 *wl) |
|
{ |
|
int ret; |
|
|
|
/* Chip-specific hw init */ |
|
ret = wl->ops->hw_init(wl); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* Init templates */ |
|
ret = wl1271_init_templates_config(wl); |
|
if (ret < 0) |
|
return ret; |
|
|
|
ret = wl12xx_acx_mem_cfg(wl); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* Configure the FW logger */ |
|
ret = wl12xx_init_fwlog(wl); |
|
if (ret < 0) |
|
return ret; |
|
|
|
ret = wlcore_cmd_regdomain_config_locked(wl); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* Bluetooth WLAN coexistence */ |
|
ret = wl1271_init_pta(wl); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* Default memory configuration */ |
|
ret = wl1271_acx_init_mem_config(wl); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* RX config */ |
|
ret = wl12xx_init_rx_config(wl); |
|
if (ret < 0) |
|
goto out_free_memmap; |
|
|
|
ret = wl1271_acx_dco_itrim_params(wl); |
|
if (ret < 0) |
|
goto out_free_memmap; |
|
|
|
/* Configure TX patch complete interrupt behavior */ |
|
ret = wl1271_acx_tx_config_options(wl); |
|
if (ret < 0) |
|
goto out_free_memmap; |
|
|
|
/* RX complete interrupt pacing */ |
|
ret = wl1271_acx_init_rx_interrupt(wl); |
|
if (ret < 0) |
|
goto out_free_memmap; |
|
|
|
/* Energy detection */ |
|
ret = wl1271_init_energy_detection(wl); |
|
if (ret < 0) |
|
goto out_free_memmap; |
|
|
|
/* Default fragmentation threshold */ |
|
ret = wl1271_acx_frag_threshold(wl, wl->hw->wiphy->frag_threshold); |
|
if (ret < 0) |
|
goto out_free_memmap; |
|
|
|
/* Enable data path */ |
|
ret = wl1271_cmd_data_path(wl, 1); |
|
if (ret < 0) |
|
goto out_free_memmap; |
|
|
|
/* configure PM */ |
|
ret = wl1271_acx_pm_config(wl); |
|
if (ret < 0) |
|
goto out_free_memmap; |
|
|
|
ret = wl12xx_acx_set_rate_mgmt_params(wl); |
|
if (ret < 0) |
|
goto out_free_memmap; |
|
|
|
/* configure hangover */ |
|
ret = wl12xx_acx_config_hangover(wl); |
|
if (ret < 0) |
|
goto out_free_memmap; |
|
|
|
return 0; |
|
|
|
out_free_memmap: |
|
kfree(wl->target_mem_map); |
|
wl->target_mem_map = NULL; |
|
|
|
return ret; |
|
}
|
|
|