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 000000000000..a8f4f156c055
--- /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;
+}