--- /dev/null
+/*
+ * This file is part of wl1271
+ *
+ * Copyright (C) 2008-2010 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/module.h>
+#include <linux/firmware.h>
+#include <linux/delay.h>
+#include <linux/spi/spi.h>
+#include <linux/crc32.h>
+#include <linux/etherdevice.h>
+#include <linux/vmalloc.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include "wl12xx.h"
+#include "wl12xx_80211.h"
+#include "reg.h"
+#include "io.h"
+#include "event.h"
+#include "tx.h"
+#include "rx.h"
+#include "ps.h"
+#include "init.h"
+#include "debugfs.h"
+#include "cmd.h"
+#include "boot.h"
+#include "testmode.h"
+#include "scan.h"
+
+#define WL1271_BOOT_RETRIES 3
+
+static struct conf_drv_settings default_conf = {
+ .sg = {
+ .params = {
+ [CONF_SG_BT_PER_THRESHOLD] = 7500,
+ [CONF_SG_HV3_MAX_OVERRIDE] = 0,
+ [CONF_SG_BT_NFS_SAMPLE_INTERVAL] = 400,
+ [CONF_SG_BT_LOAD_RATIO] = 50,
+ [CONF_SG_AUTO_PS_MODE] = 1,
+ [CONF_SG_AUTO_SCAN_PROBE_REQ] = 170,
+ [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_HV3] = 50,
+ [CONF_SG_ANTENNA_CONFIGURATION] = 0,
+ [CONF_SG_BEACON_MISS_PERCENT] = 60,
+ [CONF_SG_RATE_ADAPT_THRESH] = 12,
+ [CONF_SG_RATE_ADAPT_SNR] = 0,
+ [CONF_SG_WLAN_PS_BT_ACL_MASTER_MIN_BR] = 10,
+ [CONF_SG_WLAN_PS_BT_ACL_MASTER_MAX_BR] = 30,
+ [CONF_SG_WLAN_PS_MAX_BT_ACL_MASTER_BR] = 8,
+ [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MIN_BR] = 20,
+ [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MAX_BR] = 50,
+ /* Note: with UPSD, this should be 4 */
+ [CONF_SG_WLAN_PS_MAX_BT_ACL_SLAVE_BR] = 8,
+ [CONF_SG_WLAN_PS_BT_ACL_MASTER_MIN_EDR] = 7,
+ [CONF_SG_WLAN_PS_BT_ACL_MASTER_MAX_EDR] = 25,
+ [CONF_SG_WLAN_PS_MAX_BT_ACL_MASTER_EDR] = 20,
+ /* Note: with UPDS, this should be 15 */
+ [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MIN_EDR] = 8,
+ /* Note: with UPDS, this should be 50 */
+ [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MAX_EDR] = 40,
+ /* Note: with UPDS, this should be 10 */
+ [CONF_SG_WLAN_PS_MAX_BT_ACL_SLAVE_EDR] = 20,
+ [CONF_SG_RXT] = 1200,
+ [CONF_SG_TXT] = 1000,
+ [CONF_SG_ADAPTIVE_RXT_TXT] = 1,
+ [CONF_SG_PS_POLL_TIMEOUT] = 10,
+ [CONF_SG_UPSD_TIMEOUT] = 10,
+ [CONF_SG_WLAN_ACTIVE_BT_ACL_MASTER_MIN_EDR] = 7,
+ [CONF_SG_WLAN_ACTIVE_BT_ACL_MASTER_MAX_EDR] = 15,
+ [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_MASTER_EDR] = 15,
+ [CONF_SG_WLAN_ACTIVE_BT_ACL_SLAVE_MIN_EDR] = 8,
+ [CONF_SG_WLAN_ACTIVE_BT_ACL_SLAVE_MAX_EDR] = 20,
+ [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_SLAVE_EDR] = 15,
+ [CONF_SG_WLAN_ACTIVE_BT_ACL_MIN_BR] = 20,
+ [CONF_SG_WLAN_ACTIVE_BT_ACL_MAX_BR] = 50,
+ [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_BR] = 10,
+ [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_HV3] = 200,
+ [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_A2DP] = 800,
+ [CONF_SG_PASSIVE_SCAN_A2DP_BT_TIME] = 75,
+ [CONF_SG_PASSIVE_SCAN_A2DP_WLAN_TIME] = 15,
+ [CONF_SG_HV3_MAX_SERVED] = 6,
+ [CONF_SG_DHCP_TIME] = 5000,
+ [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_A2DP] = 100,
+ },
+ .state = CONF_SG_PROTECTIVE,
+ },
+ .rx = {
+ .rx_msdu_life_time = 512000,
+ .packet_detection_threshold = 0,
+ .ps_poll_timeout = 15,
+ .upsd_timeout = 15,
+ .rts_threshold = 2347,
+ .rx_cca_threshold = 0,
+ .irq_blk_threshold = 0xFFFF,
+ .irq_pkt_threshold = 0,
+ .irq_timeout = 600,
+ .queue_type = CONF_RX_QUEUE_TYPE_LOW_PRIORITY,
+ },
+ .tx = {
+ .tx_energy_detection = 0,
+ .rc_conf = {
+ .enabled_rates = 0,
+ .short_retry_limit = 10,
+ .long_retry_limit = 10,
+ .aflags = 0
+ },
+ .ac_conf_count = 4,
+ .ac_conf = {
+ [CONF_TX_AC_BE] = {
+ .ac = CONF_TX_AC_BE,
+ .cw_min = 15,
+ .cw_max = 63,
+ .aifsn = 3,
+ .tx_op_limit = 0,
+ },
+ [CONF_TX_AC_BK] = {
+ .ac = CONF_TX_AC_BK,
+ .cw_min = 15,
+ .cw_max = 63,
+ .aifsn = 7,
+ .tx_op_limit = 0,
+ },
+ [CONF_TX_AC_VI] = {
+ .ac = CONF_TX_AC_VI,
+ .cw_min = 15,
+ .cw_max = 63,
+ .aifsn = CONF_TX_AIFS_PIFS,
+ .tx_op_limit = 3008,
+ },
+ [CONF_TX_AC_VO] = {
+ .ac = CONF_TX_AC_VO,
+ .cw_min = 15,
+ .cw_max = 63,
+ .aifsn = CONF_TX_AIFS_PIFS,
+ .tx_op_limit = 1504,
+ },
+ },
+ .tid_conf_count = 4,
+ .tid_conf = {
+ [CONF_TX_AC_BE] = {
+ .queue_id = CONF_TX_AC_BE,
+ .channel_type = CONF_CHANNEL_TYPE_EDCF,
+ .tsid = CONF_TX_AC_BE,
+ .ps_scheme = CONF_PS_SCHEME_LEGACY,
+ .ack_policy = CONF_ACK_POLICY_LEGACY,
+ .apsd_conf = {0, 0},
+ },
+ [CONF_TX_AC_BK] = {
+ .queue_id = CONF_TX_AC_BK,
+ .channel_type = CONF_CHANNEL_TYPE_EDCF,
+ .tsid = CONF_TX_AC_BK,
+ .ps_scheme = CONF_PS_SCHEME_LEGACY,
+ .ack_policy = CONF_ACK_POLICY_LEGACY,
+ .apsd_conf = {0, 0},
+ },
+ [CONF_TX_AC_VI] = {
+ .queue_id = CONF_TX_AC_VI,
+ .channel_type = CONF_CHANNEL_TYPE_EDCF,
+ .tsid = CONF_TX_AC_VI,
+ .ps_scheme = CONF_PS_SCHEME_LEGACY,
+ .ack_policy = CONF_ACK_POLICY_LEGACY,
+ .apsd_conf = {0, 0},
+ },
+ [CONF_TX_AC_VO] = {
+ .queue_id = CONF_TX_AC_VO,
+ .channel_type = CONF_CHANNEL_TYPE_EDCF,
+ .tsid = CONF_TX_AC_VO,
+ .ps_scheme = CONF_PS_SCHEME_LEGACY,
+ .ack_policy = CONF_ACK_POLICY_LEGACY,
+ .apsd_conf = {0, 0},
+ },
+ },
+ .frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD,
+ .tx_compl_timeout = 700,
+ .tx_compl_threshold = 4,
+ .basic_rate = CONF_HW_BIT_RATE_1MBPS,
+ .basic_rate_5 = CONF_HW_BIT_RATE_6MBPS,
+ },
+ .conn = {
+ .wake_up_event = CONF_WAKE_UP_EVENT_DTIM,
+ .listen_interval = 1,
+ .bcn_filt_mode = CONF_BCN_FILT_MODE_ENABLED,
+ .bcn_filt_ie_count = 1,
+ .bcn_filt_ie = {
+ [0] = {
+ .ie = WLAN_EID_CHANNEL_SWITCH,
+ .rule = CONF_BCN_RULE_PASS_ON_APPEARANCE,
+ }
+ },
+ .synch_fail_thold = 10,
+ .bss_lose_timeout = 100,
+ .beacon_rx_timeout = 10000,
+ .broadcast_timeout = 20000,
+ .rx_broadcast_in_ps = 1,
+ .ps_poll_threshold = 10,
+ .ps_poll_recovery_period = 700,
+ .bet_enable = CONF_BET_MODE_ENABLE,
+ .bet_max_consecutive = 10,
+ .psm_entry_retries = 5,
+ .psm_entry_nullfunc_retries = 3,
+ .psm_entry_hangover_period = 1,
+ .keep_alive_interval = 55000,
+ .max_listen_interval = 20,
+ },
+ .itrim = {
+ .enable = false,
+ .timeout = 50000,
+ },
+ .pm_config = {
+ .host_clk_settling_time = 5000,
+ .host_fast_wakeup_support = false
+ },
+ .roam_trigger = {
+ .trigger_pacing = 1,
+ .avg_weight_rssi_beacon = 20,
+ .avg_weight_rssi_data = 10,
+ .avg_weight_snr_beacon = 20,
+ .avg_weight_snr_data = 10
+ },
+ .scan = {
+ .min_dwell_time_active = 7500,
+ .max_dwell_time_active = 30000,
+ .min_dwell_time_passive = 30000,
+ .max_dwell_time_passive = 60000,
+ .num_probe_reqs = 2,
+ },
+ .rf = {
+ .tx_per_channel_power_compensation_2 = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ },
+ .tx_per_channel_power_compensation_5 = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ },
+ },
+};
+
+static void __wl1271_op_remove_interface(struct wl1271 *wl);
+
+
+static void wl1271_device_release(struct device *dev)
+{
+
+}
+
+static struct platform_device wl1271_device = {
+ .name = "wl1271",
+ .id = -1,
+
+ /* device model insists to have a release function */
+ .dev = {
+ .release = wl1271_device_release,
+ },
+};
+
+static LIST_HEAD(wl_list);
+
+static int wl1271_dev_notify(struct notifier_block *me, unsigned long what,
+ void *arg)
+{
+ struct net_device *dev = arg;
+ struct wireless_dev *wdev;
+ struct wiphy *wiphy;
+ struct ieee80211_hw *hw;
+ struct wl1271 *wl;
+ struct wl1271 *wl_temp;
+ int ret = 0;
+
+ /* Check that this notification is for us. */
+ if (what != NETDEV_CHANGE)
+ return NOTIFY_DONE;
+
+ wdev = dev->ieee80211_ptr;
+ if (wdev == NULL)
+ return NOTIFY_DONE;
+
+ wiphy = wdev->wiphy;
+ if (wiphy == NULL)
+ return NOTIFY_DONE;
+
+ hw = wiphy_priv(wiphy);
+ if (hw == NULL)
+ return NOTIFY_DONE;
+
+ wl_temp = hw->priv;
+ list_for_each_entry(wl, &wl_list, list) {
+ if (wl == wl_temp)
+ break;
+ }
+ if (wl != wl_temp)
+ return NOTIFY_DONE;
+
+ mutex_lock(&wl->mutex);
+
+ if (wl->state == WL1271_STATE_OFF)
+ goto out;
+
+ if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
+ goto out;
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out;
+
+ if ((dev->operstate == IF_OPER_UP) &&
+ !test_and_set_bit(WL1271_FLAG_STA_STATE_SENT, &wl->flags)) {
+ wl1271_cmd_set_sta_state(wl);
+ wl1271_info("Association completed.");
+ }
+
+ wl1271_ps_elp_sleep(wl);
+
+out:
+ mutex_unlock(&wl->mutex);
+
+ return NOTIFY_OK;
+}
+
+static int wl1271_reg_notify(struct wiphy *wiphy,
+ struct regulatory_request *request)
+{
+ struct ieee80211_supported_band *band;
+ struct ieee80211_channel *ch;
+ int i;
+
+ band = wiphy->bands[IEEE80211_BAND_5GHZ];
+ for (i = 0; i < band->n_channels; i++) {
+ ch = &band->channels[i];
+ if (ch->flags & IEEE80211_CHAN_DISABLED)
+ continue;
+
+ if (ch->flags & IEEE80211_CHAN_RADAR)
+ ch->flags |= IEEE80211_CHAN_NO_IBSS |
+ IEEE80211_CHAN_PASSIVE_SCAN;
+
+ }
+
+ return 0;
+}
+
+static void wl1271_conf_init(struct wl1271 *wl)
+{
+
+ /*
+ * This function applies the default configuration to the driver. This
+ * function is invoked upon driver load (spi probe.)
+ *
+ * The configuration is stored in a run-time structure in order to
+ * facilitate for run-time adjustment of any of the parameters. Making
+ * changes to the configuration structure will apply the new values on
+ * the next interface up (wl1271_op_start.)
+ */
+
+ /* apply driver default configuration */
+ memcpy(&wl->conf, &default_conf, sizeof(default_conf));
+}
+
+
+static int wl1271_plt_init(struct wl1271 *wl)
+{
+ struct conf_tx_ac_category *conf_ac;
+ struct conf_tx_tid *conf_tid;
+ int ret, i;
+
+ ret = wl1271_cmd_general_parms(wl);
+ if (ret < 0)
+ return ret;
+
+ ret = wl1271_cmd_radio_parms(wl);
+ if (ret < 0)
+ return ret;
+
+ ret = wl1271_cmd_ext_radio_parms(wl);
+ if (ret < 0)
+ return ret;
+
+ ret = wl1271_init_templates_config(wl);
+ if (ret < 0)
+ return ret;
+
+ ret = wl1271_acx_init_mem_config(wl);
+ if (ret < 0)
+ return ret;
+
+ /* 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;
+
+ /* Initialize connection monitoring thresholds */
+ ret = wl1271_acx_conn_monit_params(wl, false);
+ if (ret < 0)
+ goto out_free_memmap;
+
+ /* Bluetooth WLAN coexistence */
+ ret = wl1271_init_pta(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->conf.tx.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 for CAM power saving (ie. always active) */
+ ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
+ if (ret < 0)
+ goto out_free_memmap;
+
+ /* configure PM */
+ ret = wl1271_acx_pm_config(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;
+}
+
+static void wl1271_fw_status(struct wl1271 *wl,
+ struct wl1271_fw_status *status)
+{
+ struct timespec ts;
+ u32 total = 0;
+ int i;
+
+ wl1271_raw_read(wl, FW_STATUS_ADDR, status, sizeof(*status), false);
+
+ wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
+ "drv_rx_counter = %d, tx_results_counter = %d)",
+ status->intr,
+ status->fw_rx_counter,
+ status->drv_rx_counter,
+ status->tx_results_counter);
+
+ /* update number of available TX blocks */
+ for (i = 0; i < NUM_TX_QUEUES; i++) {
+ u32 cnt = le32_to_cpu(status->tx_released_blks[i]) -
+ wl->tx_blocks_freed[i];
+
+ wl->tx_blocks_freed[i] =
+ le32_to_cpu(status->tx_released_blks[i]);
+ wl->tx_blocks_available += cnt;
+ total += cnt;
+ }
+
+ /* if more blocks are available now, tx work can be scheduled */
+ if (total)
+ clear_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags);
+
+ /* update the host-chipset time offset */
+ getnstimeofday(&ts);
+ wl->time_offset = (timespec_to_ns(&ts) >> 10) -
+ (s64)le32_to_cpu(status->fw_localtime);
+}
+
+#define WL1271_IRQ_MAX_LOOPS 10
+
+static void wl1271_irq_work(struct work_struct *work)
+{
+ int ret;
+ u32 intr;
+ int loopcount = WL1271_IRQ_MAX_LOOPS;
+ unsigned long flags;
+ struct wl1271 *wl =
+ container_of(work, struct wl1271, irq_work);
+
+ mutex_lock(&wl->mutex);
+
+ wl1271_debug(DEBUG_IRQ, "IRQ work");
+
+ if (unlikely(wl->state == WL1271_STATE_OFF))
+ goto out;
+
+ ret = wl1271_ps_elp_wakeup(wl, true);
+ if (ret < 0)
+ goto out;
+
+ spin_lock_irqsave(&wl->wl_lock, flags);
+ while (test_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags) && loopcount) {
+ clear_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags);
+ spin_unlock_irqrestore(&wl->wl_lock, flags);
+ loopcount--;
+
+ wl1271_fw_status(wl, wl->fw_status);
+ intr = le32_to_cpu(wl->fw_status->intr);
+ if (!intr) {
+ wl1271_debug(DEBUG_IRQ, "Zero interrupt received.");
+ spin_lock_irqsave(&wl->wl_lock, flags);
+ continue;
+ }
+
+ intr &= WL1271_INTR_MASK;
+
+ if (unlikely(intr & WL1271_ACX_INTR_WATCHDOG)) {
+ wl1271_error("watchdog interrupt received! "
+ "starting recovery.");
+ ieee80211_queue_work(wl->hw, &wl->recovery_work);
+
+ /* restarting the chip. ignore any other interrupt. */
+ goto out;
+ }
+
+ if (intr & WL1271_ACX_INTR_DATA) {
+ wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");
+
+ /* check for tx results */
+ if (wl->fw_status->tx_results_counter !=
+ (wl->tx_results_count & 0xff))
+ wl1271_tx_complete(wl);
+
+ /* Check if any tx blocks were freed */
+ if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
+ wl->tx_queue_count) {
+ /*
+ * In order to avoid starvation of the TX path,
+ * call the work function directly.
+ */
+ wl1271_tx_work_locked(wl);
+ }
+
+ wl1271_rx(wl, wl->fw_status);
+ }
+
+ if (intr & WL1271_ACX_INTR_EVENT_A) {
+ wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
+ wl1271_event_handle(wl, 0);
+ }
+
+ if (intr & WL1271_ACX_INTR_EVENT_B) {
+ wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
+ wl1271_event_handle(wl, 1);
+ }
+
+ if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
+ wl1271_debug(DEBUG_IRQ,
+ "WL1271_ACX_INTR_INIT_COMPLETE");
+
+ if (intr & WL1271_ACX_INTR_HW_AVAILABLE)
+ wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
+
+ spin_lock_irqsave(&wl->wl_lock, flags);
+ }
+
+ if (test_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags))
+ ieee80211_queue_work(wl->hw, &wl->irq_work);
+ else
+ clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
+ spin_unlock_irqrestore(&wl->wl_lock, flags);
+
+ wl1271_ps_elp_sleep(wl);
+
+out:
+ mutex_unlock(&wl->mutex);
+}
+
+static int wl1271_fetch_firmware(struct wl1271 *wl)
+{
+ const struct firmware *fw;
+ int ret;
+
+ ret = request_firmware(&fw, WL1271_FW_NAME, wl1271_wl_to_dev(wl));
+
+ if (ret < 0) {
+ wl1271_error("could not get firmware: %d", ret);
+ return ret;
+ }
+
+ if (fw->size % 4) {
+ wl1271_error("firmware size is not multiple of 32 bits: %zu",
+ fw->size);
+ ret = -EILSEQ;
+ goto out;
+ }
+
+ wl->fw_len = fw->size;
+ wl->fw = vmalloc(wl->fw_len);
+
+ if (!wl->fw) {
+ wl1271_error("could not allocate memory for the firmware");
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ memcpy(wl->fw, fw->data, wl->fw_len);
+
+ ret = 0;
+
+out:
+ release_firmware(fw);
+
+ return ret;
+}
+
+static int wl1271_fetch_nvs(struct wl1271 *wl)
+{
+ const struct firmware *fw;
+ int ret;
+
+ ret = request_firmware(&fw, WL1271_NVS_NAME, wl1271_wl_to_dev(wl));
+
+ if (ret < 0) {
+ wl1271_error("could not get nvs file: %d", ret);
+ return ret;
+ }
+
+ wl->nvs = kmemdup(fw->data, sizeof(struct wl1271_nvs_file), GFP_KERNEL);
+
+ if (!wl->nvs) {
+ wl1271_error("could not allocate memory for the nvs file");
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ wl->nvs_len = fw->size;
+
+out:
+ release_firmware(fw);
+
+ return ret;
+}
+
+static void wl1271_recovery_work(struct work_struct *work)
+{
+ struct wl1271 *wl =
+ container_of(work, struct wl1271, recovery_work);
+
+ mutex_lock(&wl->mutex);
+
+ if (wl->state != WL1271_STATE_ON)
+ goto out;
+
+ wl1271_info("Hardware recovery in progress.");
+
+ if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
+ ieee80211_connection_loss(wl->vif);
+
+ /* reboot the chipset */
+ __wl1271_op_remove_interface(wl);
+ ieee80211_restart_hw(wl->hw);
+
+out:
+ mutex_unlock(&wl->mutex);
+}
+
+static void wl1271_fw_wakeup(struct wl1271 *wl)
+{
+ u32 elp_reg;
+
+ elp_reg = ELPCTRL_WAKE_UP;
+ wl1271_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
+}
+
+static int wl1271_setup(struct wl1271 *wl)
+{
+ wl->fw_status = kmalloc(sizeof(*wl->fw_status), GFP_KERNEL);
+ if (!wl->fw_status)
+ return -ENOMEM;
+
+ wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
+ if (!wl->tx_res_if) {
+ kfree(wl->fw_status);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static int wl1271_chip_wakeup(struct wl1271 *wl)
+{
+ struct wl1271_partition_set partition;
+ int ret = 0;
+
+ msleep(WL1271_PRE_POWER_ON_SLEEP);
+ ret = wl1271_power_on(wl);
+ if (ret < 0)
+ goto out;
+ msleep(WL1271_POWER_ON_SLEEP);
+ wl1271_io_reset(wl);
+ wl1271_io_init(wl);
+
+ /* We don't need a real memory partition here, because we only want
+ * to use the registers at this point. */
+ memset(&partition, 0, sizeof(partition));
+ partition.reg.start = REGISTERS_BASE;
+ partition.reg.size = REGISTERS_DOWN_SIZE;
+ wl1271_set_partition(wl, &partition);
+
+ /* ELP module wake up */
+ wl1271_fw_wakeup(wl);
+
+ /* whal_FwCtrl_BootSm() */
+
+ /* 0. read chip id from CHIP_ID */
+ wl->chip.id = wl1271_read32(wl, CHIP_ID_B);
+
+ /* 1. check if chip id is valid */
+
+ switch (wl->chip.id) {
+ case CHIP_ID_1271_PG10:
+ wl1271_warning("chip id 0x%x (1271 PG10) support is obsolete",
+ wl->chip.id);
+
+ ret = wl1271_setup(wl);
+ if (ret < 0)
+ goto out;
+ break;
+ case CHIP_ID_1271_PG20:
+ wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
+ wl->chip.id);
+
+ ret = wl1271_setup(wl);
+ if (ret < 0)
+ goto out;
+ break;
+ default:
+ wl1271_warning("unsupported chip id: 0x%x", wl->chip.id);
+ ret = -ENODEV;
+ goto out;
+ }
+
+ if (wl->fw == NULL) {
+ ret = wl1271_fetch_firmware(wl);
+ if (ret < 0)
+ goto out;
+ }
+
+ /* No NVS from netlink, try to get it from the filesystem */
+ if (wl->nvs == NULL) {
+ ret = wl1271_fetch_nvs(wl);
+ if (ret < 0)
+ goto out;
+ }
+
+out:
+ return ret;
+}
+
+int wl1271_plt_start(struct wl1271 *wl)
+{
+ int retries = WL1271_BOOT_RETRIES;
+ int ret;
+
+ mutex_lock(&wl->mutex);
+
+ wl1271_notice("power up");
+
+ if (wl->state != WL1271_STATE_OFF) {
+ wl1271_error("cannot go into PLT state because not "
+ "in off state: %d", wl->state);
+ ret = -EBUSY;
+ goto out;
+ }
+
+ while (retries) {
+ retries--;
+ ret = wl1271_chip_wakeup(wl);
+ if (ret < 0)
+ goto power_off;
+
+ ret = wl1271_boot(wl);
+ if (ret < 0)
+ goto power_off;
+
+ ret = wl1271_plt_init(wl);
+ if (ret < 0)
+ goto irq_disable;
+
+ wl->state = WL1271_STATE_PLT;
+ wl1271_notice("firmware booted in PLT mode (%s)",
+ wl->chip.fw_ver);
+ goto out;
+
+irq_disable:
+ wl1271_disable_interrupts(wl);
+ mutex_unlock(&wl->mutex);
+ /* Unlocking the mutex in the middle of handling is
+ inherently unsafe. In this case we deem it safe to do,
+ because we need to let any possibly pending IRQ out of
+ the system (and while we are WL1271_STATE_OFF the IRQ
+ work function will not do anything.) Also, any other
+ possible concurrent operations will fail due to the
+ current state, hence the wl1271 struct should be safe. */
+ cancel_work_sync(&wl->irq_work);
+ mutex_lock(&wl->mutex);
+power_off:
+ wl1271_power_off(wl);
+ }
+
+ wl1271_error("firmware boot in PLT mode failed despite %d retries",
+ WL1271_BOOT_RETRIES);
+out:
+ mutex_unlock(&wl->mutex);
+
+ return ret;
+}
+
+int wl1271_plt_stop(struct wl1271 *wl)
+{
+ int ret = 0;
+
+ mutex_lock(&wl->mutex);
+
+ wl1271_notice("power down");
+
+ if (wl->state != WL1271_STATE_PLT) {
+ wl1271_error("cannot power down because not in PLT "
+ "state: %d", wl->state);
+ ret = -EBUSY;
+ goto out;
+ }
+
+ wl1271_disable_interrupts(wl);
+ wl1271_power_off(wl);
+
+ wl->state = WL1271_STATE_OFF;
+ wl->rx_counter = 0;
+
+out:
+ mutex_unlock(&wl->mutex);
+
+ cancel_work_sync(&wl->irq_work);
+ cancel_work_sync(&wl->recovery_work);
+
+ return ret;
+}
+
+static int wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+ struct wl1271 *wl = hw->priv;
+ struct ieee80211_conf *conf = &hw->conf;
+ struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
+ struct ieee80211_sta *sta = txinfo->control.sta;
+ unsigned long flags;
+ int q;
+
+ /*
+ * peek into the rates configured in the STA entry.
+ * The rates set after connection stage, The first block only BG sets:
+ * the compare is for bit 0-16 of sta_rate_set. The second block add
+ * HT rates in case of HT supported.
+ */
+ spin_lock_irqsave(&wl->wl_lock, flags);
+ if (sta &&
+ (sta->supp_rates[conf->channel->band] !=
+ (wl->sta_rate_set & HW_BG_RATES_MASK))) {
+ wl->sta_rate_set = sta->supp_rates[conf->channel->band];
+ set_bit(WL1271_FLAG_STA_RATES_CHANGED, &wl->flags);
+ }
+
+#ifdef CONFIG_WL12XX_HT
+ if (sta &&
+ sta->ht_cap.ht_supported &&
+ ((wl->sta_rate_set >> HW_HT_RATES_OFFSET) !=
+ sta->ht_cap.mcs.rx_mask[0])) {
+ /* Clean MCS bits before setting them */
+ wl->sta_rate_set &= HW_BG_RATES_MASK;
+ wl->sta_rate_set |=
+ (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET);
+ set_bit(WL1271_FLAG_STA_RATES_CHANGED, &wl->flags);
+ }
+#endif
+ wl->tx_queue_count++;
+ spin_unlock_irqrestore(&wl->wl_lock, flags);
+
+ /* queue the packet */
+ q = wl1271_tx_get_queue(skb_get_queue_mapping(skb));
+ skb_queue_tail(&wl->tx_queue[q], skb);
+
+ /*
+ * The chip specific setup must run before the first TX packet -
+ * before that, the tx_work will not be initialized!
+ */
+
+ if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags))
+ ieee80211_queue_work(wl->hw, &wl->tx_work);
+
+ /*
+ * The workqueue is slow to process the tx_queue and we need stop
+ * the queue here, otherwise the queue will get too long.
+ */
+ if (wl->tx_queue_count >= WL1271_TX_QUEUE_HIGH_WATERMARK) {
+ wl1271_debug(DEBUG_TX, "op_tx: stopping queues");
+
+ spin_lock_irqsave(&wl->wl_lock, flags);
+ ieee80211_stop_queues(wl->hw);
+ set_bit(WL1271_FLAG_TX_QUEUE_STOPPED, &wl->flags);
+ spin_unlock_irqrestore(&wl->wl_lock, flags);
+ }
+
+ return NETDEV_TX_OK;
+}
+
+static struct notifier_block wl1271_dev_notifier = {
+ .notifier_call = wl1271_dev_notify,
+};
+
+static int wl1271_op_start(struct ieee80211_hw *hw)
+{
+ wl1271_debug(DEBUG_MAC80211, "mac80211 start");
+
+ /*
+ * We have to delay the booting of the hardware because
+ * we need to know the local MAC address before downloading and
+ * initializing the firmware. The MAC address cannot be changed
+ * after boot, and without the proper MAC address, the firmware
+ * will not function properly.
+ *
+ * The MAC address is first known when the corresponding interface
+ * is added. That is where we will initialize the hardware.
+ */
+
+ return 0;
+}
+
+static void wl1271_op_stop(struct ieee80211_hw *hw)
+{
+ wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
+}
+
+static int wl1271_op_add_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct wl1271 *wl = hw->priv;
+ struct wiphy *wiphy = hw->wiphy;
+ int retries = WL1271_BOOT_RETRIES;
+ int ret = 0;
+ bool booted = false;
+
+ wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
+ vif->type, vif->addr);
+
+ mutex_lock(&wl->mutex);
+ if (wl->vif) {
+ wl1271_debug(DEBUG_MAC80211,
+ "multiple vifs are not supported yet");
+ ret = -EBUSY;
+ goto out;
+ }
+
+ switch (vif->type) {
+ case NL80211_IFTYPE_STATION:
+ wl->bss_type = BSS_TYPE_STA_BSS;
+ wl->set_bss_type = BSS_TYPE_STA_BSS;
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ wl->bss_type = BSS_TYPE_IBSS;
+ wl->set_bss_type = BSS_TYPE_STA_BSS;
+ break;
+ default:
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
+
+ if (wl->state != WL1271_STATE_OFF) {
+ wl1271_error("cannot start because not in off state: %d",
+ wl->state);
+ ret = -EBUSY;
+ goto out;
+ }
+
+ while (retries) {
+ retries--;
+ ret = wl1271_chip_wakeup(wl);
+ if (ret < 0)
+ goto power_off;
+
+ ret = wl1271_boot(wl);
+ if (ret < 0)
+ goto power_off;
+
+ ret = wl1271_hw_init(wl);
+ if (ret < 0)
+ goto irq_disable;
+
+ booted = true;
+ break;
+
+irq_disable:
+ wl1271_disable_interrupts(wl);
+ mutex_unlock(&wl->mutex);
+ /* Unlocking the mutex in the middle of handling is
+ inherently unsafe. In this case we deem it safe to do,
+ because we need to let any possibly pending IRQ out of
+ the system (and while we are WL1271_STATE_OFF the IRQ
+ work function will not do anything.) Also, any other
+ possible concurrent operations will fail due to the
+ current state, hence the wl1271 struct should be safe. */
+ cancel_work_sync(&wl->irq_work);
+ mutex_lock(&wl->mutex);
+power_off:
+ wl1271_power_off(wl);
+ }
+
+ if (!booted) {
+ wl1271_error("firmware boot failed despite %d retries",
+ WL1271_BOOT_RETRIES);
+ goto out;
+ }
+
+ wl->vif = vif;
+ wl->state = WL1271_STATE_ON;
+ wl1271_info("firmware booted (%s)", wl->chip.fw_ver);
+
+ /* update hw/fw version info in wiphy struct */
+ wiphy->hw_version = wl->chip.id;
+ strncpy(wiphy->fw_version, wl->chip.fw_ver,
+ sizeof(wiphy->fw_version));
+
+ /*
+ * Now we know if 11a is supported (info from the NVS), so disable
+ * 11a channels if not supported
+ */
+ if (!wl->enable_11a)
+ wiphy->bands[IEEE80211_BAND_5GHZ]->n_channels = 0;
+
+ wl1271_debug(DEBUG_MAC80211, "11a is %ssupported",
+ wl->enable_11a ? "" : "not ");
+
+out:
+ mutex_unlock(&wl->mutex);
+
+ if (!ret)
+ list_add(&wl->list, &wl_list);
+
+ return ret;
+}
+
+static void __wl1271_op_remove_interface(struct wl1271 *wl)
+{
+ int i;
+
+ wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
+
+ wl1271_info("down");
+
+ list_del(&wl->list);
+
+ WARN_ON(wl->state != WL1271_STATE_ON);
+
+ /* enable dyn ps just in case (if left on due to fw crash etc) */
+ if (wl->bss_type == BSS_TYPE_STA_BSS)
+ ieee80211_enable_dyn_ps(wl->vif);
+
+ if (wl->scan.state != WL1271_SCAN_STATE_IDLE) {
+ wl->scan.state = WL1271_SCAN_STATE_IDLE;
+ kfree(wl->scan.scanned_ch);
+ wl->scan.scanned_ch = NULL;
+ wl->scan.req = NULL;
+ ieee80211_scan_completed(wl->hw, true);
+ }
+
+ wl->state = WL1271_STATE_OFF;
+
+ wl1271_disable_interrupts(wl);
+
+ mutex_unlock(&wl->mutex);
+
+ cancel_delayed_work_sync(&wl->scan_complete_work);
+ cancel_work_sync(&wl->irq_work);
+ cancel_work_sync(&wl->tx_work);
+ cancel_delayed_work_sync(&wl->pspoll_work);
+ cancel_delayed_work_sync(&wl->elp_work);
+
+ mutex_lock(&wl->mutex);
+
+ /* let's notify MAC80211 about the remaining pending TX frames */
+ wl1271_tx_reset(wl);
+ wl1271_power_off(wl);
+
+ memset(wl->bssid, 0, ETH_ALEN);
+ memset(wl->ssid, 0, IW_ESSID_MAX_SIZE + 1);
+ wl->ssid_len = 0;
+ wl->bss_type = MAX_BSS_TYPE;
+ wl->set_bss_type = MAX_BSS_TYPE;
+ wl->band = IEEE80211_BAND_2GHZ;
+
+ wl->rx_counter = 0;
+ wl->psm_entry_retry = 0;
+ wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
+ wl->tx_blocks_available = 0;
+ wl->tx_results_count = 0;
+ wl->tx_packets_count = 0;
+ wl->tx_security_last_seq = 0;
+ wl->tx_security_seq = 0;
+ wl->time_offset = 0;
+ wl->session_counter = 0;
+ wl->rate_set = CONF_TX_RATE_MASK_BASIC;
+ wl->sta_rate_set = 0;
+ wl->flags = 0;
+ wl->vif = NULL;
+ wl->filters = 0;
+
+ for (i = 0; i < NUM_TX_QUEUES; i++)
+ wl->tx_blocks_freed[i] = 0;
+
+ wl1271_debugfs_reset(wl);
+
+ kfree(wl->fw_status);
+ wl->fw_status = NULL;
+ kfree(wl->tx_res_if);
+ wl->tx_res_if = NULL;
+ kfree(wl->target_mem_map);
+ wl->target_mem_map = NULL;
+}
+
+static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct wl1271 *wl = hw->priv;
+
+ mutex_lock(&wl->mutex);
+ /*
+ * wl->vif can be null here if someone shuts down the interface
+ * just when hardware recovery has been started.
+ */
+ if (wl->vif) {
+ WARN_ON(wl->vif != vif);
+ __wl1271_op_remove_interface(wl);
+ }
+
+ mutex_unlock(&wl->mutex);
+ cancel_work_sync(&wl->recovery_work);
+}
+
+static void wl1271_configure_filters(struct wl1271 *wl, unsigned int filters)
+{
+ wl->rx_config = WL1271_DEFAULT_RX_CONFIG;
+ wl->rx_filter = WL1271_DEFAULT_RX_FILTER;
+
+ /* combine requested filters with current filter config */
+ filters = wl->filters | filters;
+
+ wl1271_debug(DEBUG_FILTERS, "RX filters set: ");
+
+ if (filters & FIF_PROMISC_IN_BSS) {
+ wl1271_debug(DEBUG_FILTERS, " - FIF_PROMISC_IN_BSS");
+ wl->rx_config &= ~CFG_UNI_FILTER_EN;
+ wl->rx_config |= CFG_BSSID_FILTER_EN;
+ }
+ if (filters & FIF_BCN_PRBRESP_PROMISC) {
+ wl1271_debug(DEBUG_FILTERS, " - FIF_BCN_PRBRESP_PROMISC");
+ wl->rx_config &= ~CFG_BSSID_FILTER_EN;
+ wl->rx_config &= ~CFG_SSID_FILTER_EN;
+ }
+ if (filters & FIF_OTHER_BSS) {
+ wl1271_debug(DEBUG_FILTERS, " - FIF_OTHER_BSS");
+ wl->rx_config &= ~CFG_BSSID_FILTER_EN;
+ }
+ if (filters & FIF_CONTROL) {
+ wl1271_debug(DEBUG_FILTERS, " - FIF_CONTROL");
+ wl->rx_filter |= CFG_RX_CTL_EN;
+ }
+ if (filters & FIF_FCSFAIL) {
+ wl1271_debug(DEBUG_FILTERS, " - FIF_FCSFAIL");
+ wl->rx_filter |= CFG_RX_FCS_ERROR;
+ }
+}
+
+static int wl1271_dummy_join(struct wl1271 *wl)
+{
+ int ret = 0;
+ /* we need to use a dummy BSSID for now */
+ static const u8 dummy_bssid[ETH_ALEN] = { 0x0b, 0xad, 0xde,
+ 0xad, 0xbe, 0xef };
+
+ memcpy(wl->bssid, dummy_bssid, ETH_ALEN);
+
+ /* pass through frames from all BSS */
+ wl1271_configure_filters(wl, FIF_OTHER_BSS);
+
+ ret = wl1271_cmd_join(wl, wl->set_bss_type);
+ if (ret < 0)
+ goto out;
+
+ set_bit(WL1271_FLAG_JOINED, &wl->flags);
+
+out:
+ return ret;
+}
+
+static int wl1271_join(struct wl1271 *wl, bool set_assoc)
+{
+ int ret;
+
+ /*
+ * One of the side effects of the JOIN command is that is clears
+ * WPA/WPA2 keys from the chipset. Performing a JOIN while associated
+ * to a WPA/WPA2 access point will therefore kill the data-path.
+ * Currently there is no supported scenario for JOIN during
+ * association - if it becomes a supported scenario, the WPA/WPA2 keys
+ * must be handled somehow.
+ *
+ */
+ if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
+ wl1271_info("JOIN while associated.");
+
+ if (set_assoc)
+ set_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
+
+ ret = wl1271_cmd_join(wl, wl->set_bss_type);
+ if (ret < 0)
+ goto out;
+
+ set_bit(WL1271_FLAG_JOINED, &wl->flags);
+
+ if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
+ goto out;
+
+ /*
+ * The join command disable the keep-alive mode, shut down its process,
+ * and also clear the template config, so we need to reset it all after
+ * the join. The acx_aid starts the keep-alive process, and the order
+ * of the commands below is relevant.
+ */
+ ret = wl1271_acx_keep_alive_mode(wl, true);
+ if (ret < 0)
+ goto out;
+
+ ret = wl1271_acx_aid(wl, wl->aid);
+ if (ret < 0)
+ goto out;
+
+ ret = wl1271_cmd_build_klv_null_data(wl);
+ if (ret < 0)
+ goto out;
+
+ ret = wl1271_acx_keep_alive_config(wl, CMD_TEMPL_KLV_IDX_NULL_DATA,
+ ACX_KEEP_ALIVE_TPL_VALID);
+ if (ret < 0)
+ goto out;
+
+out:
+ return ret;
+}
+
+static int wl1271_unjoin(struct wl1271 *wl)
+{
+ int ret;
+
+ /* to stop listening to a channel, we disconnect */
+ ret = wl1271_cmd_disconnect(wl);
+ if (ret < 0)
+ goto out;
+
+ clear_bit(WL1271_FLAG_JOINED, &wl->flags);
+ memset(wl->bssid, 0, ETH_ALEN);
+
+ /* stop filterting packets based on bssid */
+ wl1271_configure_filters(wl, FIF_OTHER_BSS);
+
+out:
+ return ret;
+}
+
+static void wl1271_set_band_rate(struct wl1271 *wl)
+{
+ if (wl->band == IEEE80211_BAND_2GHZ)
+ wl->basic_rate_set = wl->conf.tx.basic_rate;
+ else
+ wl->basic_rate_set = wl->conf.tx.basic_rate_5;
+}
+
+static u32 wl1271_min_rate_get(struct wl1271 *wl)
+{
+ int i;
+ u32 rate = 0;
+
+ if (!wl->basic_rate_set) {
+ WARN_ON(1);
+ wl->basic_rate_set = wl->conf.tx.basic_rate;
+ }
+
+ for (i = 0; !rate; i++) {
+ if ((wl->basic_rate_set >> i) & 0x1)
+ rate = 1 << i;
+ }
+
+ return rate;
+}
+
+static int wl1271_handle_idle(struct wl1271 *wl, bool idle)
+{
+ int ret;
+
+ if (idle) {
+ if (test_bit(WL1271_FLAG_JOINED, &wl->flags)) {
+ ret = wl1271_unjoin(wl);
+ if (ret < 0)
+ goto out;
+ }
+ wl->rate_set = wl1271_min_rate_get(wl);
+ wl->sta_rate_set = 0;
+ ret = wl1271_acx_rate_policies(wl);
+ if (ret < 0)
+ goto out;
+ ret = wl1271_acx_keep_alive_config(
+ wl, CMD_TEMPL_KLV_IDX_NULL_DATA,
+ ACX_KEEP_ALIVE_TPL_INVALID);
+ if (ret < 0)
+ goto out;
+ set_bit(WL1271_FLAG_IDLE, &wl->flags);
+ } else {
+ /* increment the session counter */
+ wl->session_counter++;
+ if (wl->session_counter >= SESSION_COUNTER_MAX)
+ wl->session_counter = 0;
+ ret = wl1271_dummy_join(wl);
+ if (ret < 0)
+ goto out;
+ clear_bit(WL1271_FLAG_IDLE, &wl->flags);
+ }
+
+out:
+ return ret;
+}
+
+static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
+{
+ struct wl1271 *wl = hw->priv;
+ struct ieee80211_conf *conf = &hw->conf;
+ int channel, ret = 0;
+
+ channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
+
+ wl1271_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d %s",
+ channel,
+ conf->flags & IEEE80211_CONF_PS ? "on" : "off",
+ conf->power_level,
+ conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use");
+
+ /*
+ * mac80211 will go to idle nearly immediately after transmitting some
+ * frames, such as the deauth. To make sure those frames reach the air,
+ * wait here until the TX queue is fully flushed.
+ */
+ if ((changed & IEEE80211_CONF_CHANGE_IDLE) &&
+ (conf->flags & IEEE80211_CONF_IDLE))
+ wl1271_tx_flush(wl);
+
+ mutex_lock(&wl->mutex);
+
+ if (unlikely(wl->state == WL1271_STATE_OFF)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out;
+
+ /* if the channel changes while joined, join again */
+ if (changed & IEEE80211_CONF_CHANGE_CHANNEL &&
+ ((wl->band != conf->channel->band) ||
+ (wl->channel != channel))) {
+ wl->band = conf->channel->band;
+ wl->channel = channel;
+
+ /*
+ * FIXME: the mac80211 should really provide a fixed rate
+ * to use here. for now, just use the smallest possible rate
+ * for the band as a fixed rate for association frames and
+ * other control messages.
+ */
+ if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
+ wl1271_set_band_rate(wl);
+
+ wl->basic_rate = wl1271_min_rate_get(wl);
+ ret = wl1271_acx_rate_policies(wl);
+ if (ret < 0)
+ wl1271_warning("rate policy for update channel "
+ "failed %d", ret);
+
+ if (test_bit(WL1271_FLAG_JOINED, &wl->flags)) {
+ ret = wl1271_join(wl, false);
+ if (ret < 0)
+ wl1271_warning("cmd join to update channel "
+ "failed %d", ret);
+ }
+ }
+
+ if (changed & IEEE80211_CONF_CHANGE_IDLE) {
+ ret = wl1271_handle_idle(wl, conf->flags & IEEE80211_CONF_IDLE);
+ if (ret < 0)
+ wl1271_warning("idle mode change failed %d", ret);
+ }
+
+ /*
+ * if mac80211 changes the PSM mode, make sure the mode is not
+ * incorrectly changed after the pspoll failure active window.
+ */
+ if (changed & IEEE80211_CONF_CHANGE_PS)
+ clear_bit(WL1271_FLAG_PSPOLL_FAILURE, &wl->flags);
+
+ if (conf->flags & IEEE80211_CONF_PS &&
+ !test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
+ set_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
+
+ /*
+ * We enter PSM only if we're already associated.
+ * If we're not, we'll enter it when joining an SSID,
+ * through the bss_info_changed() hook.
+ */
+ if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
+ wl1271_debug(DEBUG_PSM, "psm enabled");
+ ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
+ wl->basic_rate, true);
+ }
+ } else if (!(conf->flags & IEEE80211_CONF_PS) &&
+ test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
+ wl1271_debug(DEBUG_PSM, "psm disabled");
+
+ clear_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
+
+ if (test_bit(WL1271_FLAG_PSM, &wl->flags))
+ ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
+ wl->basic_rate, true);
+ }
+
+ if (conf->power_level != wl->power_level) {
+ ret = wl1271_acx_tx_power(wl, conf->power_level);
+ if (ret < 0)
+ goto out_sleep;
+
+ wl->power_level = conf->power_level;
+ }
+
+out_sleep:
+ wl1271_ps_elp_sleep(wl);
+
+out:
+ mutex_unlock(&wl->mutex);
+
+ return ret;
+}
+
+struct wl1271_filter_params {
+ bool enabled;
+ int mc_list_length;
+ u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
+};
+
+static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
+ struct netdev_hw_addr_list *mc_list)
+{
+ struct wl1271_filter_params *fp;
+ struct netdev_hw_addr *ha;
+ struct wl1271 *wl = hw->priv;
+
+ if (unlikely(wl->state == WL1271_STATE_OFF))
+ return 0;
+
+ fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
+ if (!fp) {
+ wl1271_error("Out of memory setting filters.");
+ return 0;
+ }
+
+ /* update multicast filtering parameters */
+ fp->mc_list_length = 0;
+ if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) {
+ fp->enabled = false;
+ } else {
+ fp->enabled = true;
+ netdev_hw_addr_list_for_each(ha, mc_list) {
+ memcpy(fp->mc_list[fp->mc_list_length],
+ ha->addr, ETH_ALEN);
+ fp->mc_list_length++;
+ }
+ }
+
+ return (u64)(unsigned long)fp;
+}
+
+#define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
+ FIF_ALLMULTI | \
+ FIF_FCSFAIL | \
+ FIF_BCN_PRBRESP_PROMISC | \
+ FIF_CONTROL | \
+ FIF_OTHER_BSS)
+
+static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed,
+ unsigned int *total, u64 multicast)
+{
+ struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
+ struct wl1271 *wl = hw->priv;
+ int ret;
+
+ wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter");
+
+ mutex_lock(&wl->mutex);
+
+ *total &= WL1271_SUPPORTED_FILTERS;
+ changed &= WL1271_SUPPORTED_FILTERS;
+
+ if (unlikely(wl->state == WL1271_STATE_OFF))
+ goto out;
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out;
+
+
+ if (*total & FIF_ALLMULTI)
+ ret = wl1271_acx_group_address_tbl(wl, false, NULL, 0);
+ else if (fp)
+ ret = wl1271_acx_group_address_tbl(wl, fp->enabled,
+ fp->mc_list,
+ fp->mc_list_length);
+ if (ret < 0)
+ goto out_sleep;
+
+ /* determine, whether supported filter values have changed */
+ if (changed == 0)
+ goto out_sleep;
+
+ /* configure filters */
+ wl->filters = *total;
+ wl1271_configure_filters(wl, 0);
+
+ /* apply configured filters */
+ ret = wl1271_acx_rx_config(wl, wl->rx_config, wl->rx_filter);
+ if (ret < 0)
+ goto out_sleep;
+
+out_sleep:
+ wl1271_ps_elp_sleep(wl);
+
+out:
+ mutex_unlock(&wl->mutex);
+ kfree(fp);
+}
+
+static int wl1271_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key_conf)
+{
+ struct wl1271 *wl = hw->priv;
+ const u8 *addr;
+ int ret;
+ u32 tx_seq_32 = 0;
+ u16 tx_seq_16 = 0;
+ u8 key_type;
+
+ static const u8 bcast_addr[ETH_ALEN] =
+ { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+
+ wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
+
+ addr = sta ? sta->addr : bcast_addr;
+
+ wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd);
+ wl1271_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN);
+ wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
+ key_conf->cipher, key_conf->keyidx,
+ key_conf->keylen, key_conf->flags);
+ wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
+
+ if (is_zero_ether_addr(addr)) {
+ /* We dont support TX only encryption */
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ mutex_lock(&wl->mutex);
+
+ if (unlikely(wl->state == WL1271_STATE_OFF)) {
+ ret = -EAGAIN;
+ goto out_unlock;
+ }
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out_unlock;
+
+ switch (key_conf->cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ key_type = KEY_WEP;
+
+ key_conf->hw_key_idx = key_conf->keyidx;
+ break;
+ case WLAN_CIPHER_SUITE_TKIP:
+ key_type = KEY_TKIP;
+
+ key_conf->hw_key_idx = key_conf->keyidx;
+ tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
+ tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
+ break;
+ case WLAN_CIPHER_SUITE_CCMP:
+ key_type = KEY_AES;
+
+ key_conf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+ tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
+ tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
+ break;
+ case WL1271_CIPHER_SUITE_GEM:
+ key_type = KEY_GEM;
+ tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
+ tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
+ break;
+ default:
+ wl1271_error("Unknown key algo 0x%x", key_conf->cipher);
+
+ ret = -EOPNOTSUPP;
+ goto out_sleep;
+ }
+
+ switch (cmd) {
+ case SET_KEY:
+ ret = wl1271_cmd_set_key(wl, KEY_ADD_OR_REPLACE,
+ key_conf->keyidx, key_type,
+ key_conf->keylen, key_conf->key,
+ addr, tx_seq_32, tx_seq_16);
+ if (ret < 0) {
+ wl1271_error("Could not add or replace key");
+ goto out_sleep;
+ }
+
+ /* the default WEP key needs to be configured at least once */
+ if (key_type == KEY_WEP) {
+ ret = wl1271_cmd_set_default_wep_key(wl,
+ wl->default_key);
+ if (ret < 0)
+ goto out_sleep;
+ }
+ break;
+
+ case DISABLE_KEY:
+ /* The wl1271 does not allow to remove unicast keys - they
+ will be cleared automatically on next CMD_JOIN. Ignore the
+ request silently, as we dont want the mac80211 to emit
+ an error message. */
+ if (!is_broadcast_ether_addr(addr))
+ break;
+
+ ret = wl1271_cmd_set_key(wl, KEY_REMOVE,
+ key_conf->keyidx, key_type,
+ key_conf->keylen, key_conf->key,
+ addr, 0, 0);
+ if (ret < 0) {
+ wl1271_error("Could not remove key");
+ goto out_sleep;
+ }
+ break;
+
+ default:
+ wl1271_error("Unsupported key cmd 0x%x", cmd);
+ ret = -EOPNOTSUPP;
+ break;
+ }
+
+out_sleep:
+ wl1271_ps_elp_sleep(wl);
+
+out_unlock:
+ mutex_unlock(&wl->mutex);
+
+out:
+ return ret;
+}
+
+static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct cfg80211_scan_request *req)
+{
+ struct wl1271 *wl = hw->priv;
+ int ret;
+ u8 *ssid = NULL;
+ size_t len = 0;
+
+ wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
+
+ if (req->n_ssids) {
+ ssid = req->ssids[0].ssid;
+ len = req->ssids[0].ssid_len;
+ }
+
+ mutex_lock(&wl->mutex);
+
+ if (wl->state == WL1271_STATE_OFF) {
+ /*
+ * We cannot return -EBUSY here because cfg80211 will expect
+ * a call to ieee80211_scan_completed if we do - in this case
+ * there won't be any call.
+ */
+ ret = -EAGAIN;
+ goto out;
+ }
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out;
+
+ ret = wl1271_scan(hw->priv, ssid, len, req);
+
+ wl1271_ps_elp_sleep(wl);
+
+out:
+ mutex_unlock(&wl->mutex);
+
+ return ret;
+}
+
+static int wl1271_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
+{
+ struct wl1271 *wl = hw->priv;
+ int ret = 0;
+
+ mutex_lock(&wl->mutex);
+
+ if (unlikely(wl->state == WL1271_STATE_OFF)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out;
+
+ ret = wl1271_acx_frag_threshold(wl, (u16)value);
+ if (ret < 0)
+ wl1271_warning("wl1271_op_set_frag_threshold failed: %d", ret);
+
+ wl1271_ps_elp_sleep(wl);
+
+out:
+ mutex_unlock(&wl->mutex);
+
+ return ret;
+}
+
+static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+{
+ struct wl1271 *wl = hw->priv;
+ int ret = 0;
+
+ mutex_lock(&wl->mutex);
+
+ if (unlikely(wl->state == WL1271_STATE_OFF)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out;
+
+ ret = wl1271_acx_rts_threshold(wl, (u16) value);
+ if (ret < 0)
+ wl1271_warning("wl1271_op_set_rts_threshold failed: %d", ret);
+
+ wl1271_ps_elp_sleep(wl);
+
+out:
+ mutex_unlock(&wl->mutex);
+
+ return ret;
+}
+
+static void wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *skb,
+ int offset)
+{
+ u8 *ptr = skb->data + offset;
+
+ /* find the location of the ssid in the beacon */
+ while (ptr < skb->data + skb->len) {
+ if (ptr[0] == WLAN_EID_SSID) {
+ wl->ssid_len = ptr[1];
+ memcpy(wl->ssid, ptr+2, wl->ssid_len);
+ return;
+ }
+ ptr += (ptr[1] + 2);
+ }
+ wl1271_error("No SSID in IEs!\n");
+}
+
+static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *bss_conf,
+ u32 changed)
+{
+ enum wl1271_cmd_ps_mode mode;
+ struct wl1271 *wl = hw->priv;
+ struct ieee80211_sta *sta = ieee80211_find_sta(vif, bss_conf->bssid);
+ bool do_join = false;
+ bool set_assoc = false;
+ int ret;
+
+ wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed");
+
+ mutex_lock(&wl->mutex);
+
+ if (unlikely(wl->state == WL1271_STATE_OFF))
+ goto out;
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out;
+
+ if ((changed & BSS_CHANGED_BEACON_INT) &&
+ (wl->bss_type == BSS_TYPE_IBSS)) {
+ wl1271_debug(DEBUG_ADHOC, "ad-hoc beacon interval updated: %d",
+ bss_conf->beacon_int);
+
+ wl->beacon_int = bss_conf->beacon_int;
+ do_join = true;
+ }
+
+ if ((changed & BSS_CHANGED_BEACON) &&
+ (wl->bss_type == BSS_TYPE_IBSS)) {
+ struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
+
+ wl1271_debug(DEBUG_ADHOC, "ad-hoc beacon updated");
+
+ if (beacon) {
+ struct ieee80211_hdr *hdr;
+ int ieoffset = offsetof(struct ieee80211_mgmt,
+ u.beacon.variable);
+
+ wl1271_ssid_set(wl, beacon, ieoffset);
+
+ ret = wl1271_cmd_template_set(wl, CMD_TEMPL_BEACON,
+ beacon->data,
+ beacon->len, 0,
+ wl1271_min_rate_get(wl));
+
+ if (ret < 0) {
+ dev_kfree_skb(beacon);
+ goto out_sleep;
+ }
+
+ hdr = (struct ieee80211_hdr *) beacon->data;
+ hdr->frame_control = cpu_to_le16(
+ IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_PROBE_RESP);
+
+ ret = wl1271_cmd_template_set(wl,
+ CMD_TEMPL_PROBE_RESPONSE,
+ beacon->data,
+ beacon->len, 0,
+ wl1271_min_rate_get(wl));
+ dev_kfree_skb(beacon);
+ if (ret < 0)
+ goto out_sleep;
+
+ /* Need to update the SSID (for filtering etc) */
+ do_join = true;
+ }
+ }
+
+ if ((changed & BSS_CHANGED_BEACON_ENABLED) &&
+ (wl->bss_type == BSS_TYPE_IBSS)) {
+ wl1271_debug(DEBUG_ADHOC, "ad-hoc beaconing: %s",
+ bss_conf->enable_beacon ? "enabled" : "disabled");
+
+ if (bss_conf->enable_beacon)
+ wl->set_bss_type = BSS_TYPE_IBSS;
+ else
+ wl->set_bss_type = BSS_TYPE_STA_BSS;
+ do_join = true;
+ }
+
+ if (changed & BSS_CHANGED_CQM) {
+ bool enable = false;
+ if (bss_conf->cqm_rssi_thold)
+ enable = true;
+ ret = wl1271_acx_rssi_snr_trigger(wl, enable,
+ bss_conf->cqm_rssi_thold,
+ bss_conf->cqm_rssi_hyst);
+ if (ret < 0)
+ goto out;
+ wl->rssi_thold = bss_conf->cqm_rssi_thold;
+ }
+
+ if ((changed & BSS_CHANGED_BSSID) &&
+ /*
+ * Now we know the correct bssid, so we send a new join command
+ * and enable the BSSID filter
+ */
+ memcmp(wl->bssid, bss_conf->bssid, ETH_ALEN)) {
+ memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN);
+
+ ret = wl1271_cmd_build_null_data(wl);
+ if (ret < 0)
+ goto out_sleep;
+
+ ret = wl1271_build_qos_null_data(wl);
+ if (ret < 0)
+ goto out_sleep;
+
+ /* filter out all packets not from this BSSID */
+ wl1271_configure_filters(wl, 0);
+
+ /* Need to update the BSSID (for filtering etc) */
+ do_join = true;
+ }
+
+ if (changed & BSS_CHANGED_ASSOC) {
+ if (bss_conf->assoc) {
+ u32 rates;
+ int ieoffset;
+ wl->aid = bss_conf->aid;
+ set_assoc = true;
+
+ wl->ps_poll_failures = 0;
+
+ /*
+ * use basic rates from AP, and determine lowest rate
+ * to use with control frames.
+ */
+ rates = bss_conf->basic_rates;
+ wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl,
+ rates);
+ wl->basic_rate = wl1271_min_rate_get(wl);
+ ret = wl1271_acx_rate_policies(wl);
+ if (ret < 0)
+ goto out_sleep;
+
+ /*
+ * with wl1271, we don't need to update the
+ * beacon_int and dtim_period, because the firmware
+ * updates it by itself when the first beacon is
+ * received after a join.
+ */
+ ret = wl1271_cmd_build_ps_poll(wl, wl->aid);
+ if (ret < 0)
+ goto out_sleep;
+
+ /*
+ * Get a template for hardware connection maintenance
+ */
+ dev_kfree_skb(wl->probereq);
+ wl->probereq = wl1271_cmd_build_ap_probe_req(wl, NULL);
+ ieoffset = offsetof(struct ieee80211_mgmt,
+ u.probe_req.variable);
+ wl1271_ssid_set(wl, wl->probereq, ieoffset);
+
+ /* enable the connection monitoring feature */
+ ret = wl1271_acx_conn_monit_params(wl, true);
+ if (ret < 0)
+ goto out_sleep;
+
+ /* If we want to go in PSM but we're not there yet */
+ if (test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags) &&
+ !test_bit(WL1271_FLAG_PSM, &wl->flags)) {
+ mode = STATION_POWER_SAVE_MODE;
+ ret = wl1271_ps_set_mode(wl, mode,
+ wl->basic_rate,
+ true);
+ if (ret < 0)
+ goto out_sleep;
+ }
+ } else {
+ /* use defaults when not associated */
+ clear_bit(WL1271_FLAG_STA_STATE_SENT, &wl->flags);
+ clear_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
+ wl->aid = 0;
+
+ /* free probe-request template */
+ dev_kfree_skb(wl->probereq);
+ wl->probereq = NULL;
+
+ /* re-enable dynamic ps - just in case */
+ ieee80211_enable_dyn_ps(wl->vif);
+
+ /* revert back to minimum rates for the current band */
+ wl1271_set_band_rate(wl);
+ wl->basic_rate = wl1271_min_rate_get(wl);
+ ret = wl1271_acx_rate_policies(wl);
+ if (ret < 0)
+ goto out_sleep;
+
+ /* disable connection monitor features */
+ ret = wl1271_acx_conn_monit_params(wl, false);
+
+ /* Disable the keep-alive feature */
+ ret = wl1271_acx_keep_alive_mode(wl, false);
+ if (ret < 0)
+ goto out_sleep;
+
+ /* restore the bssid filter and go to dummy bssid */
+ wl1271_unjoin(wl);
+ wl1271_dummy_join(wl);
+ }
+
+ }
+
+ if (changed & BSS_CHANGED_ERP_SLOT) {
+ if (bss_conf->use_short_slot)
+ ret = wl1271_acx_slot(wl, SLOT_TIME_SHORT);
+ else
+ ret = wl1271_acx_slot(wl, SLOT_TIME_LONG);
+ if (ret < 0) {
+ wl1271_warning("Set slot time failed %d", ret);
+ goto out_sleep;
+ }
+ }
+
+ if (changed & BSS_CHANGED_ERP_PREAMBLE) {
+ if (bss_conf->use_short_preamble)
+ wl1271_acx_set_preamble(wl, ACX_PREAMBLE_SHORT);
+ else
+ wl1271_acx_set_preamble(wl, ACX_PREAMBLE_LONG);
+ }
+
+ if (changed & BSS_CHANGED_ERP_CTS_PROT) {
+ if (bss_conf->use_cts_prot)
+ ret = wl1271_acx_cts_protect(wl, CTSPROTECT_ENABLE);
+ else
+ ret = wl1271_acx_cts_protect(wl, CTSPROTECT_DISABLE);
+ if (ret < 0) {
+ wl1271_warning("Set ctsprotect failed %d", ret);
+ goto out_sleep;
+ }
+ }
+
+ /*
+ * Takes care of: New association with HT enable,
+ * HT information change in beacon.
+ */
+ if (sta &&
+ (changed & BSS_CHANGED_HT) &&
+ (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
+ ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, true);
+ if (ret < 0) {
+ wl1271_warning("Set ht cap true failed %d", ret);
+ goto out_sleep;
+ }
+ ret = wl1271_acx_set_ht_information(wl,
+ bss_conf->ht_operation_mode);
+ if (ret < 0) {
+ wl1271_warning("Set ht information failed %d", ret);
+ goto out_sleep;
+ }
+ }
+ /*
+ * Takes care of: New association without HT,
+ * Disassociation.
+ */
+ else if (sta && (changed & BSS_CHANGED_ASSOC)) {
+ ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, false);
+ if (ret < 0) {
+ wl1271_warning("Set ht cap false failed %d", ret);
+ goto out_sleep;
+ }
+ }
+
+ if (changed & BSS_CHANGED_ARP_FILTER) {
+ __be32 addr = bss_conf->arp_addr_list[0];
+ WARN_ON(wl->bss_type != BSS_TYPE_STA_BSS);
+
+ if (bss_conf->arp_addr_cnt == 1 &&
+ bss_conf->arp_filter_enabled) {
+ /*
+ * The template should have been configured only upon
+ * association. however, it seems that the correct ip
+ * isn't being set (when sending), so we have to
+ * reconfigure the template upon every ip change.
+ */
+ ret = wl1271_cmd_build_arp_rsp(wl, addr);
+ if (ret < 0) {
+ wl1271_warning("build arp rsp failed: %d", ret);
+ goto out_sleep;
+ }
+
+ ret = wl1271_acx_arp_ip_filter(wl,
+ (ACX_ARP_FILTER_ARP_FILTERING |
+ ACX_ARP_FILTER_AUTO_ARP),
+ addr);
+ } else
+ ret = wl1271_acx_arp_ip_filter(wl, 0, addr);
+
+ if (ret < 0)
+ goto out_sleep;
+ }
+
+ if (do_join) {
+ ret = wl1271_join(wl, set_assoc);
+ if (ret < 0) {
+ wl1271_warning("cmd join failed %d", ret);
+ goto out_sleep;
+ }
+ }
+
+out_sleep:
+ wl1271_ps_elp_sleep(wl);
+
+out:
+ mutex_unlock(&wl->mutex);
+}
+
+static int wl1271_op_conf_tx(struct ieee80211_hw *hw, u16 queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ struct wl1271 *wl = hw->priv;
+ u8 ps_scheme;
+ int ret;
+
+ mutex_lock(&wl->mutex);
+
+ wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
+
+ if (unlikely(wl->state == WL1271_STATE_OFF)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out;
+
+ /* the txop is confed in units of 32us by the mac80211, we need us */
+ ret = wl1271_acx_ac_cfg(wl, wl1271_tx_get_queue(queue),
+ params->cw_min, params->cw_max,
+ params->aifs, params->txop << 5);
+ if (ret < 0)
+ goto out_sleep;
+
+ if (params->uapsd)
+ ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
+ else
+ ps_scheme = CONF_PS_SCHEME_LEGACY;
+
+ ret = wl1271_acx_tid_cfg(wl, wl1271_tx_get_queue(queue),
+ CONF_CHANNEL_TYPE_EDCF,
+ wl1271_tx_get_queue(queue),
+ ps_scheme, CONF_ACK_POLICY_LEGACY, 0, 0);
+ if (ret < 0)
+ goto out_sleep;
+
+out_sleep:
+ wl1271_ps_elp_sleep(wl);
+
+out:
+ mutex_unlock(&wl->mutex);
+
+ return ret;
+}
+
+static u64 wl1271_op_get_tsf(struct ieee80211_hw *hw)
+{
+
+ struct wl1271 *wl = hw->priv;
+ u64 mactime = ULLONG_MAX;
+ int ret;
+
+ wl1271_debug(DEBUG_MAC80211, "mac80211 get tsf");
+
+ mutex_lock(&wl->mutex);
+
+ if (unlikely(wl->state == WL1271_STATE_OFF))
+ goto out;
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out;
+
+ ret = wl1271_acx_tsf_info(wl, &mactime);
+ if (ret < 0)
+ goto out_sleep;
+
+out_sleep:
+ wl1271_ps_elp_sleep(wl);
+
+out:
+ mutex_unlock(&wl->mutex);
+ return mactime;
+}
+
+static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
+ struct survey_info *survey)
+{
+ struct wl1271 *wl = hw->priv;
+ struct ieee80211_conf *conf = &hw->conf;
+
+ if (idx != 0)
+ return -ENOENT;
+
+ survey->channel = conf->channel;
+ survey->filled = SURVEY_INFO_NOISE_DBM;
+ survey->noise = wl->noise;
+
+ return 0;
+}
+
+/* can't be const, mac80211 writes to this */
+static struct ieee80211_rate wl1271_rates[] = {
+ { .bitrate = 10,
+ .hw_value = CONF_HW_BIT_RATE_1MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
+ { .bitrate = 20,
+ .hw_value = CONF_HW_BIT_RATE_2MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+ { .bitrate = 55,
+ .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+ { .bitrate = 110,
+ .hw_value = CONF_HW_BIT_RATE_11MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+ { .bitrate = 60,
+ .hw_value = CONF_HW_BIT_RATE_6MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
+ { .bitrate = 90,
+ .hw_value = CONF_HW_BIT_RATE_9MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
+ { .bitrate = 120,
+ .hw_value = CONF_HW_BIT_RATE_12MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
+ { .bitrate = 180,
+ .hw_value = CONF_HW_BIT_RATE_18MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
+ { .bitrate = 240,
+ .hw_value = CONF_HW_BIT_RATE_24MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
+ { .bitrate = 360,
+ .hw_value = CONF_HW_BIT_RATE_36MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
+ { .bitrate = 480,
+ .hw_value = CONF_HW_BIT_RATE_48MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
+ { .bitrate = 540,
+ .hw_value = CONF_HW_BIT_RATE_54MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
+};
+
+/* can't be const, mac80211 writes to this */
+static struct ieee80211_channel wl1271_channels[] = {
+ { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
+ { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
+ { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
+ { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
+ { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
+ { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
+ { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
+ { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
+ { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
+ { .hw_value = 10, .center_freq = 2457, .max_power = 25 },
+ { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
+ { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
+ { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
+};
+
+/* mapping to indexes for wl1271_rates */
+static const u8 wl1271_rate_to_idx_2ghz[] = {
+ /* MCS rates are used only with 11n */
+ 7, /* CONF_HW_RXTX_RATE_MCS7 */
+ 6, /* CONF_HW_RXTX_RATE_MCS6 */
+ 5, /* CONF_HW_RXTX_RATE_MCS5 */
+ 4, /* CONF_HW_RXTX_RATE_MCS4 */
+ 3, /* CONF_HW_RXTX_RATE_MCS3 */
+ 2, /* CONF_HW_RXTX_RATE_MCS2 */
+ 1, /* CONF_HW_RXTX_RATE_MCS1 */
+ 0, /* CONF_HW_RXTX_RATE_MCS0 */
+
+ 11, /* CONF_HW_RXTX_RATE_54 */
+ 10, /* CONF_HW_RXTX_RATE_48 */
+ 9, /* CONF_HW_RXTX_RATE_36 */
+ 8, /* CONF_HW_RXTX_RATE_24 */
+
+ /* TI-specific rate */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
+
+ 7, /* CONF_HW_RXTX_RATE_18 */
+ 6, /* CONF_HW_RXTX_RATE_12 */
+ 3, /* CONF_HW_RXTX_RATE_11 */
+ 5, /* CONF_HW_RXTX_RATE_9 */
+ 4, /* CONF_HW_RXTX_RATE_6 */
+ 2, /* CONF_HW_RXTX_RATE_5_5 */
+ 1, /* CONF_HW_RXTX_RATE_2 */
+ 0 /* CONF_HW_RXTX_RATE_1 */
+};
+
+/* 11n STA capabilities */
+#define HW_RX_HIGHEST_RATE 72
+
+#ifdef CONFIG_WL12XX_HT
+#define WL12XX_HT_CAP { \
+ .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20, \
+ .ht_supported = true, \
+ .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K, \
+ .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, \
+ .mcs = { \
+ .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, \
+ .rx_highest = cpu_to_le16(HW_RX_HIGHEST_RATE), \
+ .tx_params = IEEE80211_HT_MCS_TX_DEFINED, \
+ }, \
+}
+#else
+#define WL12XX_HT_CAP { \
+ .ht_supported = false, \
+}
+#endif
+
+/* can't be const, mac80211 writes to this */
+static struct ieee80211_supported_band wl1271_band_2ghz = {
+ .channels = wl1271_channels,
+ .n_channels = ARRAY_SIZE(wl1271_channels),
+ .bitrates = wl1271_rates,
+ .n_bitrates = ARRAY_SIZE(wl1271_rates),
+ .ht_cap = WL12XX_HT_CAP,
+};
+
+/* 5 GHz data rates for WL1273 */
+static struct ieee80211_rate wl1271_rates_5ghz[] = {
+ { .bitrate = 60,
+ .hw_value = CONF_HW_BIT_RATE_6MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
+ { .bitrate = 90,
+ .hw_value = CONF_HW_BIT_RATE_9MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
+ { .bitrate = 120,
+ .hw_value = CONF_HW_BIT_RATE_12MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
+ { .bitrate = 180,
+ .hw_value = CONF_HW_BIT_RATE_18MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
+ { .bitrate = 240,
+ .hw_value = CONF_HW_BIT_RATE_24MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
+ { .bitrate = 360,
+ .hw_value = CONF_HW_BIT_RATE_36MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
+ { .bitrate = 480,
+ .hw_value = CONF_HW_BIT_RATE_48MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
+ { .bitrate = 540,
+ .hw_value = CONF_HW_BIT_RATE_54MBPS,
+ .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
+};
+
+/* 5 GHz band channels for WL1273 */
+static struct ieee80211_channel wl1271_channels_5ghz[] = {
+ { .hw_value = 7, .center_freq = 5035},
+ { .hw_value = 8, .center_freq = 5040},
+ { .hw_value = 9, .center_freq = 5045},
+ { .hw_value = 11, .center_freq = 5055},
+ { .hw_value = 12, .center_freq = 5060},
+ { .hw_value = 16, .center_freq = 5080},
+ { .hw_value = 34, .center_freq = 5170},
+ { .hw_value = 36, .center_freq = 5180},
+ { .hw_value = 38, .center_freq = 5190},
+ { .hw_value = 40, .center_freq = 5200},
+ { .hw_value = 42, .center_freq = 5210},
+ { .hw_value = 44, .center_freq = 5220},
+ { .hw_value = 46, .center_freq = 5230},
+ { .hw_value = 48, .center_freq = 5240},
+ { .hw_value = 52, .center_freq = 5260},
+ { .hw_value = 56, .center_freq = 5280},
+ { .hw_value = 60, .center_freq = 5300},
+ { .hw_value = 64, .center_freq = 5320},
+ { .hw_value = 100, .center_freq = 5500},
+ { .hw_value = 104, .center_freq = 5520},
+ { .hw_value = 108, .center_freq = 5540},
+ { .hw_value = 112, .center_freq = 5560},
+ { .hw_value = 116, .center_freq = 5580},
+ { .hw_value = 120, .center_freq = 5600},
+ { .hw_value = 124, .center_freq = 5620},
+ { .hw_value = 128, .center_freq = 5640},
+ { .hw_value = 132, .center_freq = 5660},
+ { .hw_value = 136, .center_freq = 5680},
+ { .hw_value = 140, .center_freq = 5700},
+ { .hw_value = 149, .center_freq = 5745},
+ { .hw_value = 153, .center_freq = 5765},
+ { .hw_value = 157, .center_freq = 5785},
+ { .hw_value = 161, .center_freq = 5805},
+ { .hw_value = 165, .center_freq = 5825},
+};
+
+/* mapping to indexes for wl1271_rates_5ghz */
+static const u8 wl1271_rate_to_idx_5ghz[] = {
+ /* MCS rates are used only with 11n */
+ 7, /* CONF_HW_RXTX_RATE_MCS7 */
+ 6, /* CONF_HW_RXTX_RATE_MCS6 */
+ 5, /* CONF_HW_RXTX_RATE_MCS5 */
+ 4, /* CONF_HW_RXTX_RATE_MCS4 */
+ 3, /* CONF_HW_RXTX_RATE_MCS3 */
+ 2, /* CONF_HW_RXTX_RATE_MCS2 */
+ 1, /* CONF_HW_RXTX_RATE_MCS1 */
+ 0, /* CONF_HW_RXTX_RATE_MCS0 */
+
+ 7, /* CONF_HW_RXTX_RATE_54 */
+ 6, /* CONF_HW_RXTX_RATE_48 */
+ 5, /* CONF_HW_RXTX_RATE_36 */
+ 4, /* CONF_HW_RXTX_RATE_24 */
+
+ /* TI-specific rate */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
+
+ 3, /* CONF_HW_RXTX_RATE_18 */
+ 2, /* CONF_HW_RXTX_RATE_12 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_11 */
+ 1, /* CONF_HW_RXTX_RATE_9 */
+ 0, /* CONF_HW_RXTX_RATE_6 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_5_5 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_2 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED /* CONF_HW_RXTX_RATE_1 */
+};
+
+static struct ieee80211_supported_band wl1271_band_5ghz = {
+ .channels = wl1271_channels_5ghz,
+ .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
+ .bitrates = wl1271_rates_5ghz,
+ .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
+ .ht_cap = WL12XX_HT_CAP,
+};
+
+static const u8 *wl1271_band_rate_to_idx[] = {
+ [IEEE80211_BAND_2GHZ] = wl1271_rate_to_idx_2ghz,
+ [IEEE80211_BAND_5GHZ] = wl1271_rate_to_idx_5ghz
+};
+
+static const struct ieee80211_ops wl1271_ops = {
+ .start = wl1271_op_start,
+ .stop = wl1271_op_stop,
+ .add_interface = wl1271_op_add_interface,
+ .remove_interface = wl1271_op_remove_interface,
+ .config = wl1271_op_config,
+ .prepare_multicast = wl1271_op_prepare_multicast,
+ .configure_filter = wl1271_op_configure_filter,
+ .tx = wl1271_op_tx,
+ .set_key = wl1271_op_set_key,
+ .hw_scan = wl1271_op_hw_scan,
+ .bss_info_changed = wl1271_op_bss_info_changed,
+ .set_frag_threshold = wl1271_op_set_frag_threshold,
+ .set_rts_threshold = wl1271_op_set_rts_threshold,
+ .conf_tx = wl1271_op_conf_tx,
+ .get_tsf = wl1271_op_get_tsf,
+ .get_survey = wl1271_op_get_survey,
+ CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
+};
+
+
+u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band)
+{
+ u8 idx;
+
+ BUG_ON(band >= sizeof(wl1271_band_rate_to_idx)/sizeof(u8 *));
+
+ if (unlikely(rate >= CONF_HW_RXTX_RATE_MAX)) {
+ wl1271_error("Illegal RX rate from HW: %d", rate);
+ return 0;
+ }
+
+ idx = wl1271_band_rate_to_idx[band][rate];
+ if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
+ wl1271_error("Unsupported RX rate from HW: %d", rate);
+ return 0;
+ }
+
+ return idx;
+}
+
+static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct wl1271 *wl = dev_get_drvdata(dev);
+ ssize_t len;
+
+ len = PAGE_SIZE;
+
+ mutex_lock(&wl->mutex);
+ len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
+ wl->sg_enabled);
+ mutex_unlock(&wl->mutex);
+
+ return len;
+
+}
+
+static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct wl1271 *wl = dev_get_drvdata(dev);
+ unsigned long res;
+ int ret;
+
+ ret = strict_strtoul(buf, 10, &res);
+
+ if (ret < 0) {
+ wl1271_warning("incorrect value written to bt_coex_mode");
+ return count;
+ }
+
+ mutex_lock(&wl->mutex);
+
+ res = !!res;
+
+ if (res == wl->sg_enabled)
+ goto out;
+
+ wl->sg_enabled = res;
+
+ if (wl->state == WL1271_STATE_OFF)
+ goto out;
+
+ ret = wl1271_ps_elp_wakeup(wl, false);
+ if (ret < 0)
+ goto out;
+
+ wl1271_acx_sg_enable(wl, wl->sg_enabled);
+ wl1271_ps_elp_sleep(wl);
+
+ out:
+ mutex_unlock(&wl->mutex);
+ return count;
+}
+
+static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
+ wl1271_sysfs_show_bt_coex_state,
+ wl1271_sysfs_store_bt_coex_state);
+
+static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct wl1271 *wl = dev_get_drvdata(dev);
+ ssize_t len;
+
+ len = PAGE_SIZE;
+
+ mutex_lock(&wl->mutex);
+ if (wl->hw_pg_ver >= 0)
+ len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
+ else
+ len = snprintf(buf, len, "n/a\n");
+ mutex_unlock(&wl->mutex);
+
+ return len;
+}
+
+static DEVICE_ATTR(hw_pg_ver, S_IRUGO | S_IWUSR,
+ wl1271_sysfs_show_hw_pg_ver, NULL);
+
+int wl1271_register_hw(struct wl1271 *wl)
+{
+ int ret;
+
+ if (wl->mac80211_registered)
+ return 0;
+
+ SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
+
+ ret = ieee80211_register_hw(wl->hw);
+ if (ret < 0) {
+ wl1271_error("unable to register mac80211 hw: %d", ret);
+ return ret;
+ }
+
+ wl->mac80211_registered = true;
+
+ wl1271_debugfs_init(wl);
+
+ register_netdevice_notifier(&wl1271_dev_notifier);
+
+ wl1271_notice("loaded");
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(wl1271_register_hw);
+
+void wl1271_unregister_hw(struct wl1271 *wl)
+{
+ unregister_netdevice_notifier(&wl1271_dev_notifier);
+ ieee80211_unregister_hw(wl->hw);
+ wl->mac80211_registered = false;
+
+}
+EXPORT_SYMBOL_GPL(wl1271_unregister_hw);
+
+int wl1271_init_ieee80211(struct wl1271 *wl)
+{
+ static const u32 cipher_suites[] = {
+ WLAN_CIPHER_SUITE_WEP40,
+ WLAN_CIPHER_SUITE_WEP104,
+ WLAN_CIPHER_SUITE_TKIP,
+ WLAN_CIPHER_SUITE_CCMP,
+ WL1271_CIPHER_SUITE_GEM,
+ };
+
+ /* The tx descriptor buffer and the TKIP space. */
+ wl->hw->extra_tx_headroom = WL1271_TKIP_IV_SPACE +
+ sizeof(struct wl1271_tx_hw_descr);
+
+ /* unit us */
+ /* FIXME: find a proper value */
+ wl->hw->channel_change_time = 10000;
+ wl->hw->max_listen_interval = wl->conf.conn.max_listen_interval;
+
+ wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
+ IEEE80211_HW_BEACON_FILTER |
+ IEEE80211_HW_SUPPORTS_PS |
+ IEEE80211_HW_SUPPORTS_UAPSD |
+ IEEE80211_HW_HAS_RATE_CONTROL |
+ IEEE80211_HW_CONNECTION_MONITOR |
+ IEEE80211_HW_SUPPORTS_CQM_RSSI;
+
+ wl->hw->wiphy->cipher_suites = cipher_suites;
+ wl->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
+
+ wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_ADHOC);
+ wl->hw->wiphy->max_scan_ssids = 1;
+ /*
+ * Maximum length of elements in scanning probe request templates
+ * should be the maximum length possible for a template, without
+ * the IEEE80211 header of the template
+ */
+ wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
+ sizeof(struct ieee80211_header);
+ wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1271_band_2ghz;
+ wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wl1271_band_5ghz;
+
+ wl->hw->queues = 4;
+ wl->hw->max_rates = 1;
+
+ wl->hw->wiphy->reg_notifier = wl1271_reg_notify;
+
+ SET_IEEE80211_DEV(wl->hw, wl1271_wl_to_dev(wl));
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(wl1271_init_ieee80211);
+
+#define WL1271_DEFAULT_CHANNEL 0
+
+struct ieee80211_hw *wl1271_alloc_hw(void)
+{
+ struct ieee80211_hw *hw;
+ struct platform_device *plat_dev = NULL;
+ struct wl1271 *wl;
+ int i, ret;
+ unsigned int order;
+
+ hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
+ if (!hw) {
+ wl1271_error("could not alloc ieee80211_hw");
+ ret = -ENOMEM;
+ goto err_hw_alloc;
+ }
+
+ plat_dev = kmemdup(&wl1271_device, sizeof(wl1271_device), GFP_KERNEL);
+ if (!plat_dev) {
+ wl1271_error("could not allocate platform_device");
+ ret = -ENOMEM;
+ goto err_plat_alloc;
+ }
+
+ wl = hw->priv;
+ memset(wl, 0, sizeof(*wl));
+
+ INIT_LIST_HEAD(&wl->list);
+
+ wl->hw = hw;
+ wl->plat_dev = plat_dev;
+
+ for (i = 0; i < NUM_TX_QUEUES; i++)
+ skb_queue_head_init(&wl->tx_queue[i]);
+
+ INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
+ INIT_DELAYED_WORK(&wl->pspoll_work, wl1271_pspoll_work);
+ INIT_WORK(&wl->irq_work, wl1271_irq_work);
+ INIT_WORK(&wl->tx_work, wl1271_tx_work);
+ INIT_WORK(&wl->recovery_work, wl1271_recovery_work);
+ INIT_DELAYED_WORK(&wl->scan_complete_work, wl1271_scan_complete_work);
+ wl->channel = WL1271_DEFAULT_CHANNEL;
+ wl->beacon_int = WL1271_DEFAULT_BEACON_INT;
+ wl->default_key = 0;
+ wl->rx_counter = 0;
+ wl->rx_config = WL1271_DEFAULT_RX_CONFIG;
+ wl->rx_filter = WL1271_DEFAULT_RX_FILTER;
+ wl->psm_entry_retry = 0;
+ wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
+ wl->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
+ wl->basic_rate = CONF_TX_RATE_MASK_BASIC;
+ wl->rate_set = CONF_TX_RATE_MASK_BASIC;
+ wl->sta_rate_set = 0;
+ wl->band = IEEE80211_BAND_2GHZ;
+ wl->vif = NULL;
+ wl->flags = 0;
+ wl->sg_enabled = true;
+ wl->hw_pg_ver = -1;
+
+ memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
+ for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
+ wl->tx_frames[i] = NULL;
+
+ spin_lock_init(&wl->wl_lock);
+
+ wl->state = WL1271_STATE_OFF;
+ mutex_init(&wl->mutex);
+
+ /* Apply default driver configuration. */
+ wl1271_conf_init(wl);
+
+ order = get_order(WL1271_AGGR_BUFFER_SIZE);
+ wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
+ if (!wl->aggr_buf) {
+ ret = -ENOMEM;
+ goto err_hw;
+ }
+
+ /* Register platform device */
+ ret = platform_device_register(wl->plat_dev);
+ if (ret) {
+ wl1271_error("couldn't register platform device");
+ goto err_aggr;
+ }
+ dev_set_drvdata(&wl->plat_dev->dev, wl);
+
+ /* Create sysfs file to control bt coex state */
+ ret = device_create_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
+ if (ret < 0) {
+ wl1271_error("failed to create sysfs file bt_coex_state");
+ goto err_platform;
+ }
+
+ /* Create sysfs file to get HW PG version */
+ ret = device_create_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
+ if (ret < 0) {
+ wl1271_error("failed to create sysfs file hw_pg_ver");
+ goto err_bt_coex_state;
+ }
+
+ return hw;
+
+err_bt_coex_state:
+ device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
+
+err_platform:
+ platform_device_unregister(wl->plat_dev);
+
+err_aggr:
+ free_pages((unsigned long)wl->aggr_buf, order);
+
+err_hw:
+ wl1271_debugfs_exit(wl);
+ kfree(plat_dev);
+
+err_plat_alloc:
+ ieee80211_free_hw(hw);
+
+err_hw_alloc:
+
+ return ERR_PTR(ret);
+}
+EXPORT_SYMBOL_GPL(wl1271_alloc_hw);
+
+int wl1271_free_hw(struct wl1271 *wl)
+{
+ platform_device_unregister(wl->plat_dev);
+ free_pages((unsigned long)wl->aggr_buf,
+ get_order(WL1271_AGGR_BUFFER_SIZE));
+ kfree(wl->plat_dev);
+
+ wl1271_debugfs_exit(wl);
+
+ vfree(wl->fw);
+ wl->fw = NULL;
+ kfree(wl->nvs);
+ wl->nvs = NULL;
+
+ kfree(wl->fw_status);
+ kfree(wl->tx_res_if);
+
+ ieee80211_free_hw(wl->hw);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(wl1271_free_hw);
+
+u32 wl12xx_debug_level;
+EXPORT_SYMBOL_GPL(wl12xx_debug_level);
+module_param_named(debug_level, wl12xx_debug_level, uint, DEBUG_NONE);
+MODULE_PARM_DESC(debug_level, "wl12xx debugging level");
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>");
+MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
projects / mv-sheeva.git / blobdiff