diff options
Diffstat (limited to 'drivers/net/wireless/wl12xx/init.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/init.c | 723 |
1 files changed, 723 insertions, 0 deletions
diff --git a/drivers/net/wireless/wl12xx/init.c b/drivers/net/wireless/wl12xx/init.c new file mode 100644 index 00000000000..a8f4f156c05 --- /dev/null +++ b/drivers/net/wireless/wl12xx/init.c @@ -0,0 +1,723 @@ +/* + * This file is part of wl1271 + * + * Copyright (C) 2009 Nokia Corporation + * + * Contact: Luciano Coelho <luciano.coelho@nokia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> + +#include "init.h" +#include "wl12xx_80211.h" +#include "acx.h" +#include "cmd.h" +#include "reg.h" +#include "tx.h" +#include "io.h" + +int wl1271_sta_init_templates_config(struct wl1271 *wl) +{ + int ret, i; + + /* send empty templates for fw memory reservation */ + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4, NULL, + WL1271_CMD_TEMPL_MAX_SIZE, + 0, WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5, + NULL, WL1271_CMD_TEMPL_MAX_SIZE, 0, + WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, NULL, + sizeof(struct wl12xx_null_data_template), + 0, WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_PS_POLL, NULL, + sizeof(struct wl12xx_ps_poll_template), + 0, WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, NULL, + sizeof + (struct wl12xx_qos_null_data_template), + 0, WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_PROBE_RESPONSE, NULL, + sizeof + (struct wl12xx_probe_resp_template), + 0, WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_BEACON, NULL, + sizeof + (struct wl12xx_beacon_template), + 0, WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_ARP_RSP, NULL, + sizeof + (struct wl12xx_arp_rsp_template), + 0, WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + for (i = 0; i < CMD_TEMPL_KLV_IDX_MAX; i++) { + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_KLV, NULL, + WL1271_CMD_TEMPL_MAX_SIZE, i, + WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + } + + return 0; +} + +static int wl1271_ap_init_deauth_template(struct wl1271 *wl) +{ + struct wl12xx_disconn_template *tmpl; + int ret; + + tmpl = kzalloc(sizeof(*tmpl), GFP_KERNEL); + if (!tmpl) { + ret = -ENOMEM; + goto out; + } + + tmpl->header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | + IEEE80211_STYPE_DEAUTH); + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_DEAUTH_AP, + tmpl, sizeof(*tmpl), 0, + wl1271_tx_min_rate_get(wl)); + +out: + kfree(tmpl); + return ret; +} + +static int wl1271_ap_init_null_template(struct wl1271 *wl) +{ + struct ieee80211_hdr_3addr *nullfunc; + int ret; + + nullfunc = kzalloc(sizeof(*nullfunc), GFP_KERNEL); + if (!nullfunc) { + ret = -ENOMEM; + goto out; + } + + nullfunc->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | + IEEE80211_STYPE_NULLFUNC | + IEEE80211_FCTL_FROMDS); + + /* nullfunc->addr1 is filled by FW */ + + memcpy(nullfunc->addr2, wl->mac_addr, ETH_ALEN); + memcpy(nullfunc->addr3, wl->mac_addr, ETH_ALEN); + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, nullfunc, + sizeof(*nullfunc), 0, + wl1271_tx_min_rate_get(wl)); + +out: + kfree(nullfunc); + return ret; +} + +static int wl1271_ap_init_qos_null_template(struct wl1271 *wl) +{ + struct ieee80211_qos_hdr *qosnull; + int ret; + + qosnull = kzalloc(sizeof(*qosnull), GFP_KERNEL); + if (!qosnull) { + ret = -ENOMEM; + goto out; + } + + qosnull->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | + IEEE80211_STYPE_QOS_NULLFUNC | + IEEE80211_FCTL_FROMDS); + + /* qosnull->addr1 is filled by FW */ + + memcpy(qosnull->addr2, wl->mac_addr, ETH_ALEN); + memcpy(qosnull->addr3, wl->mac_addr, ETH_ALEN); + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, qosnull, + sizeof(*qosnull), 0, + wl1271_tx_min_rate_get(wl)); + +out: + kfree(qosnull); + return ret; +} + +static int wl1271_ap_init_templates_config(struct wl1271 *wl) +{ + int ret; + + /* + * Put very large empty placeholders for all templates. These + * reserve memory for later. + */ + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_AP_PROBE_RESPONSE, NULL, + sizeof + (struct wl12xx_probe_resp_template), + 0, WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_AP_BEACON, NULL, + sizeof + (struct wl12xx_beacon_template), + 0, WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_DEAUTH_AP, NULL, + sizeof + (struct wl12xx_disconn_template), + 0, WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_NULL_DATA, NULL, + sizeof(struct wl12xx_null_data_template), + 0, WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + ret = wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, NULL, + sizeof + (struct wl12xx_qos_null_data_template), + 0, WL1271_RATE_AUTOMATIC); + if (ret < 0) + return ret; + + return 0; +} + +static int wl1271_init_rx_config(struct wl1271 *wl, u32 config, u32 filter) +{ + int ret; + + ret = wl1271_acx_rx_msdu_life_time(wl); + if (ret < 0) + return ret; + + ret = wl1271_acx_rx_config(wl, config, filter); + if (ret < 0) + return ret; + + return 0; +} + +int wl1271_init_phy_config(struct wl1271 *wl) +{ + int ret; + + ret = wl1271_acx_pd_threshold(wl); + if (ret < 0) + return ret; + + ret = wl1271_acx_slot(wl, DEFAULT_SLOT_TIME); + if (ret < 0) + return ret; + + ret = wl1271_acx_service_period_timeout(wl); + if (ret < 0) + return ret; + + ret = wl1271_acx_rts_threshold(wl, wl->hw->wiphy->rts_threshold); + if (ret < 0) + return ret; + + return 0; +} + +static int wl1271_init_beacon_filter(struct wl1271 *wl) +{ + int ret; + + /* disable beacon filtering at this stage */ + ret = wl1271_acx_beacon_filter_opt(wl, false); + if (ret < 0) + return ret; + + ret = wl1271_acx_beacon_filter_table(wl); + if (ret < 0) + return ret; + + return 0; +} + +int wl1271_init_pta(struct wl1271 *wl) +{ + int ret; + + if (wl->bss_type == BSS_TYPE_AP_BSS) + ret = wl1271_acx_ap_sg_cfg(wl); + else + ret = wl1271_acx_sta_sg_cfg(wl); + if (ret < 0) + return ret; + + ret = wl1271_acx_sg_enable(wl, wl->sg_enabled); + if (ret < 0) + return ret; + + return 0; +} + +int wl1271_init_energy_detection(struct wl1271 *wl) +{ + int ret; + + ret = wl1271_acx_cca_threshold(wl); + if (ret < 0) + return ret; + + return 0; +} + +static int wl1271_init_beacon_broadcast(struct wl1271 *wl) +{ + int ret; + + ret = wl1271_acx_bcn_dtim_options(wl); + if (ret < 0) + return ret; + + return 0; +} + +static int wl1271_sta_hw_init(struct wl1271 *wl) +{ + int ret; + + if (wl->chip.id != CHIP_ID_1283_PG20) { + ret = wl1271_cmd_ext_radio_parms(wl); + if (ret < 0) + return ret; + } + + /* PS config */ + ret = wl1271_acx_config_ps(wl); + if (ret < 0) + return ret; + + ret = wl1271_sta_init_templates_config(wl); + if (ret < 0) + return ret; + + ret = wl1271_acx_group_address_tbl(wl, true, NULL, 0); + if (ret < 0) + return ret; + + /* Initialize connection monitoring thresholds */ + ret = wl1271_acx_conn_monit_params(wl, false); + if (ret < 0) + return ret; + + /* Beacon filtering */ + ret = wl1271_init_beacon_filter(wl); + if (ret < 0) + return ret; + + /* FM WLAN coexistence */ + ret = wl1271_acx_fm_coex(wl); + if (ret < 0) + return ret; + + /* Beacons and broadcast settings */ + ret = wl1271_init_beacon_broadcast(wl); + if (ret < 0) + return ret; + + /* Configure for ELP power saving */ + ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_ELP); + if (ret < 0) + return ret; + + /* Configure rssi/snr averaging weights */ + ret = wl1271_acx_rssi_snr_avg_weights(wl); + if (ret < 0) + return ret; + + ret = wl1271_acx_sta_rate_policies(wl); + if (ret < 0) + return ret; + + ret = wl1271_acx_sta_mem_cfg(wl); + if (ret < 0) + return ret; + + return 0; +} + +static int wl1271_sta_hw_init_post_mem(struct wl1271 *wl) +{ + int ret, i; + + ret = wl1271_cmd_set_sta_default_wep_key(wl, wl->default_key); + if (ret < 0) { + wl1271_warning("couldn't set default key"); + return ret; + } + + /* disable all keep-alive templates */ + for (i = 0; i < CMD_TEMPL_KLV_IDX_MAX; i++) { + ret = wl1271_acx_keep_alive_config(wl, i, + ACX_KEEP_ALIVE_TPL_INVALID); + if (ret < 0) + return ret; + } + + /* disable the keep-alive feature */ + ret = wl1271_acx_keep_alive_mode(wl, false); + if (ret < 0) + return ret; + + return 0; +} + +static int wl1271_ap_hw_init(struct wl1271 *wl) +{ + int ret; + + ret = wl1271_ap_init_templates_config(wl); + if (ret < 0) + return ret; + + /* Configure for power always on */ + ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM); + if (ret < 0) + return ret; + + ret = wl1271_init_ap_rates(wl); + if (ret < 0) + return ret; + + ret = wl1271_acx_max_tx_retry(wl); + if (ret < 0) + return ret; + + ret = wl1271_acx_ap_mem_cfg(wl); + if (ret < 0) + return ret; + + return 0; +} + +int wl1271_ap_init_templates(struct wl1271 *wl) +{ + int ret; + + ret = wl1271_ap_init_deauth_template(wl); + if (ret < 0) + return ret; + + ret = wl1271_ap_init_null_template(wl); + if (ret < 0) + return ret; + + ret = wl1271_ap_init_qos_null_template(wl); + if (ret < 0) + return ret; + + /* + * when operating as AP we want to receive external beacons for + * configuring ERP protection. + */ + ret = wl1271_acx_set_ap_beacon_filter(wl, false); + if (ret < 0) + return ret; + + return 0; +} + +static int wl1271_ap_hw_init_post_mem(struct wl1271 *wl) +{ + return wl1271_ap_init_templates(wl); +} + +int wl1271_init_ap_rates(struct wl1271 *wl) +{ + int i, ret; + struct conf_tx_rate_class rc; + u32 supported_rates; + + wl1271_debug(DEBUG_AP, "AP basic rate set: 0x%x", wl->basic_rate_set); + + if (wl->basic_rate_set == 0) + return -EINVAL; + + rc.enabled_rates = wl->basic_rate_set; + rc.long_retry_limit = 10; + rc.short_retry_limit = 10; + rc.aflags = 0; + ret = wl1271_acx_ap_rate_policy(wl, &rc, ACX_TX_AP_MODE_MGMT_RATE); + if (ret < 0) + return ret; + + /* use the min basic rate for AP broadcast/multicast */ + rc.enabled_rates = wl1271_tx_min_rate_get(wl); + rc.short_retry_limit = 10; + rc.long_retry_limit = 10; + rc.aflags = 0; + ret = wl1271_acx_ap_rate_policy(wl, &rc, ACX_TX_AP_MODE_BCST_RATE); + if (ret < 0) + return ret; + + /* + * If the basic rates contain OFDM rates, use OFDM only + * rates for unicast TX as well. Else use all supported rates. + */ + if ((wl->basic_rate_set & CONF_TX_OFDM_RATES)) + supported_rates = CONF_TX_OFDM_RATES; + else + supported_rates = CONF_TX_AP_ENABLED_RATES; + + /* configure unicast TX rate classes */ + for (i = 0; i < wl->conf.tx.ac_conf_count; i++) { + rc.enabled_rates = supported_rates; + rc.short_retry_limit = 10; + rc.long_retry_limit = 10; + rc.aflags = 0; + ret = wl1271_acx_ap_rate_policy(wl, &rc, i); + if (ret < 0) + return ret; + } + + return 0; +} + +static void wl1271_check_ba_support(struct wl1271 *wl) +{ + /* validate FW cose ver x.x.x.50-60.x */ + if ((wl->chip.fw_ver[3] >= WL12XX_BA_SUPPORT_FW_COST_VER2_START) && + (wl->chip.fw_ver[3] < WL12XX_BA_SUPPORT_FW_COST_VER2_END)) { + wl->ba_support = true; + return; + } + + wl->ba_support = false; +} + +static int wl1271_set_ba_policies(struct wl1271 *wl) +{ + u8 tid_index; + int ret = 0; + + /* Reset the BA RX indicators */ + wl->ba_rx_bitmap = 0; + + /* validate that FW support BA */ + wl1271_check_ba_support(wl); + + if (wl->ba_support) + /* 802.11n initiator BA session setting */ + for (tid_index = 0; tid_index < CONF_TX_MAX_TID_COUNT; + ++tid_index) { + ret = wl1271_acx_set_ba_session(wl, WLAN_BACK_INITIATOR, + tid_index, true); + if (ret < 0) + break; + } + + return ret; +} + +int wl1271_chip_specific_init(struct wl1271 *wl) +{ + int ret = 0; + + if (wl->chip.id == CHIP_ID_1283_PG20) { + u32 host_cfg_bitmap = HOST_IF_CFG_RX_FIFO_ENABLE; + + if (wl->quirks & WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT) + /* Enable SDIO padding */ + host_cfg_bitmap |= HOST_IF_CFG_TX_PAD_TO_SDIO_BLK; + + /* Must be before wl1271_acx_init_mem_config() */ + ret = wl1271_acx_host_if_cfg_bitmap(wl, host_cfg_bitmap); + if (ret < 0) + goto out; + } +out: + return ret; +} + + +int wl1271_hw_init(struct wl1271 *wl) +{ + struct conf_tx_ac_category *conf_ac; + struct conf_tx_tid *conf_tid; + int ret, i; + bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS); + + if (wl->chip.id == CHIP_ID_1283_PG20) + ret = wl128x_cmd_general_parms(wl); + else + ret = wl1271_cmd_general_parms(wl); + if (ret < 0) + return ret; + + if (wl->chip.id == CHIP_ID_1283_PG20) + ret = wl128x_cmd_radio_parms(wl); + else + ret = wl1271_cmd_radio_parms(wl); + if (ret < 0) + return ret; + + /* Chip-specific init */ + ret = wl1271_chip_specific_init(wl); + if (ret < 0) + return ret; + + /* Mode specific init */ + if (is_ap) + ret = wl1271_ap_hw_init(wl); + else + ret = wl1271_sta_hw_init(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 = wl1271_init_rx_config(wl, + RX_CFG_PROMISCUOUS | RX_CFG_TSF, + RX_FILTER_OPTION_DEF); + /* RX_CONFIG_OPTION_ANY_DST_ANY_BSS, + RX_FILTER_OPTION_FILTER_ALL); */ + if (ret < 0) + goto out_free_memmap; + + /* PHY layer config */ + ret = wl1271_init_phy_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; + + /* 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, conf_ac->ac, conf_ac->cw_min, + conf_ac->cw_max, conf_ac->aifsn, + conf_ac->tx_op_limit); + if (ret < 0) + goto out_free_memmap; + + conf_tid = &wl->conf.tx.tid_conf[i]; + ret = wl1271_acx_tid_cfg(wl, 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) + goto out_free_memmap; + } + + /* Enable data path */ + ret = wl1271_cmd_data_path(wl, 1); + if (ret < 0) + goto out_free_memmap; + + /* Configure HW encryption */ + ret = wl1271_acx_feature_cfg(wl); + if (ret < 0) + goto out_free_memmap; + + /* configure PM */ + ret = wl1271_acx_pm_config(wl); + if (ret < 0) + goto out_free_memmap; + + /* Mode specific init - post mem init */ + if (is_ap) + ret = wl1271_ap_hw_init_post_mem(wl); + else + ret = wl1271_sta_hw_init_post_mem(wl); + + if (ret < 0) + goto out_free_memmap; + + /* Configure initiator BA sessions policies */ + ret = wl1271_set_ba_policies(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; +} |