+++ /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 "wl1271.h"
-#include "wl12xx_80211.h"
-#include "wl1271_reg.h"
-#include "wl1271_io.h"
-#include "wl1271_event.h"
-#include "wl1271_tx.h"
-#include "wl1271_rx.h"
-#include "wl1271_ps.h"
-#include "wl1271_init.h"
-#include "wl1271_debugfs.h"
-#include "wl1271_cmd.h"
-#include "wl1271_boot.h"
-#include "wl1271_testmode.h"
-#include "wl1271_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 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);
- 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) &&
- !skb_queue_empty(&wl->tx_queue)) {
- /*
- * 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;
-
- /*
- * 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_WL1271_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
- spin_unlock_irqrestore(&wl->wl_lock, flags);
-
- /* queue the packet */
- skb_queue_tail(&wl->tx_queue, 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 (skb_queue_len(&wl->tx_queue) >= 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));
-
-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);
- 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_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 *beacon)
-{
- u8 *ptr = beacon->data +
- offsetof(struct ieee80211_mgmt, u.beacon.variable);
-
- /* find the location of the ssid in the beacon */
- while (ptr < beacon->data + beacon->len) {
- if (ptr[0] == WLAN_EID_SSID) {
- wl->ssid_len = ptr[1];
- memcpy(wl->ssid, ptr+2, wl->ssid_len);
- return;
- }
- ptr += ptr[1];
- }
- wl1271_error("ad-hoc beacon template has no SSID!\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;
-
- wl1271_ssid_set(wl, beacon);
- 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;
- 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;
-
- /*
- * The SSID is intentionally set to NULL here - the
- * firmware will set the probe request with a
- * broadcast SSID regardless of what we set in the
- * template.
- */
- ret = wl1271_cmd_build_probe_req(wl, NULL, 0,
- NULL, 0, wl->band);
-
- /* 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;
-
- /* 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;
- }
-
- }
-
- 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)
- ret = wl1271_acx_arp_ip_filter(wl, true, addr);
- else
- ret = wl1271_acx_arp_ip_filter(wl, false, 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. The order of the channels here
- * is designed to improve scanning.
- */
-static struct ieee80211_channel wl1271_channels[] = {
- { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
- { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
- { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
- { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
- { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
- { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
- { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
- { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
- { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
- { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
- { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
- { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
- { .hw_value = 10, .center_freq = 2457, .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_WL1271_HT
-#define WL1271_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 WL1271_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 = WL1271_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 - can't be const, mac80211 writes to this.
- * The order of the channels here is designed to improve scanning.
- */
-static struct ieee80211_channel wl1271_channels_5ghz[] = {
- { .hw_value = 183, .center_freq = 4915},
- { .hw_value = 188, .center_freq = 4940},
- { .hw_value = 8, .center_freq = 5040},
- { .hw_value = 34, .center_freq = 5170},
- { .hw_value = 44, .center_freq = 5220},
- { .hw_value = 60, .center_freq = 5300},
- { .hw_value = 112, .center_freq = 5560},
- { .hw_value = 132, .center_freq = 5660},
- { .hw_value = 157, .center_freq = 5785},
- { .hw_value = 184, .center_freq = 4920},
- { .hw_value = 189, .center_freq = 4945},
- { .hw_value = 9, .center_freq = 5045},
- { .hw_value = 36, .center_freq = 5180},
- { .hw_value = 46, .center_freq = 5230},
- { .hw_value = 64, .center_freq = 5320},
- { .hw_value = 116, .center_freq = 5580},
- { .hw_value = 136, .center_freq = 5680},
- { .hw_value = 192, .center_freq = 4960},
- { .hw_value = 11, .center_freq = 5055},
- { .hw_value = 38, .center_freq = 5190},
- { .hw_value = 48, .center_freq = 5240},
- { .hw_value = 100, .center_freq = 5500},
- { .hw_value = 120, .center_freq = 5600},
- { .hw_value = 140, .center_freq = 5700},
- { .hw_value = 185, .center_freq = 4925},
- { .hw_value = 196, .center_freq = 4980},
- { .hw_value = 12, .center_freq = 5060},
- { .hw_value = 40, .center_freq = 5200},
- { .hw_value = 52, .center_freq = 5260},
- { .hw_value = 104, .center_freq = 5520},
- { .hw_value = 124, .center_freq = 5620},
- { .hw_value = 149, .center_freq = 5745},
- { .hw_value = 161, .center_freq = 5805},
- { .hw_value = 187, .center_freq = 4935},
- { .hw_value = 7, .center_freq = 5035},
- { .hw_value = 16, .center_freq = 5080},
- { .hw_value = 42, .center_freq = 5210},
- { .hw_value = 56, .center_freq = 5280},
- { .hw_value = 108, .center_freq = 5540},
- { .hw_value = 128, .center_freq = 5640},
- { .hw_value = 153, .center_freq = 5765},
- { .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 = WL1271_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_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;
-
- 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;
- 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;
-
- 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;
-
- skb_queue_head_init(&wl->tx_queue);
-
- 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);
-
- wl1271_debugfs_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);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>");
-MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
git.openpandora.org / pandora-kernel.git / blobdiff