diff options
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 3868 |
1 files changed, 3868 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c new file mode 100644 index 00000000000..5eddabe5228 --- /dev/null +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -0,0 +1,3868 @@ +/* + * Copyright (c) 2010 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* Toplevel file. Relies on dhd_linux.c to send commands to the dongle. */ + +#include <linux/kernel.h> +#include <linux/if_arp.h> +#include <linux/sched.h> +#include <linux/kthread.h> +#include <linux/netdevice.h> +#include <linux/bitops.h> +#include <linux/etherdevice.h> +#include <linux/ieee80211.h> +#include <linux/uaccess.h> +#include <net/cfg80211.h> + +#include <brcmu_utils.h> +#include <defs.h> +#include <brcmu_wifi.h> +#include "dhd.h" +#include "wl_cfg80211.h" + +#define BRCMF_ASSOC_PARAMS_FIXED_SIZE \ + (sizeof(struct brcmf_assoc_params_le) - sizeof(u16)) + +static const u8 ether_bcast[ETH_ALEN] = {255, 255, 255, 255, 255, 255}; + +static u32 brcmf_dbg_level = WL_DBG_ERR; + +static void brcmf_set_drvdata(struct brcmf_cfg80211_dev *dev, void *data) +{ + dev->driver_data = data; +} + +static void *brcmf_get_drvdata(struct brcmf_cfg80211_dev *dev) +{ + void *data = NULL; + + if (dev) + data = dev->driver_data; + return data; +} + +static +struct brcmf_cfg80211_priv *brcmf_priv_get(struct brcmf_cfg80211_dev *cfg_dev) +{ + struct brcmf_cfg80211_iface *ci = brcmf_get_drvdata(cfg_dev); + return ci->cfg_priv; +} + +static bool check_sys_up(struct wiphy *wiphy) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + if (!test_bit(WL_STATUS_READY, &cfg_priv->status)) { + WL_INFO("device is not ready : status (%d)\n", + (int)cfg_priv->status); + return false; + } + return true; +} + +#define CHAN2G(_channel, _freq, _flags) { \ + .band = IEEE80211_BAND_2GHZ, \ + .center_freq = (_freq), \ + .hw_value = (_channel), \ + .flags = (_flags), \ + .max_antenna_gain = 0, \ + .max_power = 30, \ +} + +#define CHAN5G(_channel, _flags) { \ + .band = IEEE80211_BAND_5GHZ, \ + .center_freq = 5000 + (5 * (_channel)), \ + .hw_value = (_channel), \ + .flags = (_flags), \ + .max_antenna_gain = 0, \ + .max_power = 30, \ +} + +#define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2) +#define RATETAB_ENT(_rateid, _flags) \ + { \ + .bitrate = RATE_TO_BASE100KBPS(_rateid), \ + .hw_value = (_rateid), \ + .flags = (_flags), \ + } + +static struct ieee80211_rate __wl_rates[] = { + RATETAB_ENT(BRCM_RATE_1M, 0), + RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE), + RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE), + RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE), + RATETAB_ENT(BRCM_RATE_6M, 0), + RATETAB_ENT(BRCM_RATE_9M, 0), + RATETAB_ENT(BRCM_RATE_12M, 0), + RATETAB_ENT(BRCM_RATE_18M, 0), + RATETAB_ENT(BRCM_RATE_24M, 0), + RATETAB_ENT(BRCM_RATE_36M, 0), + RATETAB_ENT(BRCM_RATE_48M, 0), + RATETAB_ENT(BRCM_RATE_54M, 0), +}; + +#define wl_a_rates (__wl_rates + 4) +#define wl_a_rates_size 8 +#define wl_g_rates (__wl_rates + 0) +#define wl_g_rates_size 12 + +static struct ieee80211_channel __wl_2ghz_channels[] = { + CHAN2G(1, 2412, 0), + CHAN2G(2, 2417, 0), + CHAN2G(3, 2422, 0), + CHAN2G(4, 2427, 0), + CHAN2G(5, 2432, 0), + CHAN2G(6, 2437, 0), + CHAN2G(7, 2442, 0), + CHAN2G(8, 2447, 0), + CHAN2G(9, 2452, 0), + CHAN2G(10, 2457, 0), + CHAN2G(11, 2462, 0), + CHAN2G(12, 2467, 0), + CHAN2G(13, 2472, 0), + CHAN2G(14, 2484, 0), +}; + +static struct ieee80211_channel __wl_5ghz_a_channels[] = { + CHAN5G(34, 0), CHAN5G(36, 0), + CHAN5G(38, 0), CHAN5G(40, 0), + CHAN5G(42, 0), CHAN5G(44, 0), + CHAN5G(46, 0), CHAN5G(48, 0), + CHAN5G(52, 0), CHAN5G(56, 0), + CHAN5G(60, 0), CHAN5G(64, 0), + CHAN5G(100, 0), CHAN5G(104, 0), + CHAN5G(108, 0), CHAN5G(112, 0), + CHAN5G(116, 0), CHAN5G(120, 0), + CHAN5G(124, 0), CHAN5G(128, 0), + CHAN5G(132, 0), CHAN5G(136, 0), + CHAN5G(140, 0), CHAN5G(149, 0), + CHAN5G(153, 0), CHAN5G(157, 0), + CHAN5G(161, 0), CHAN5G(165, 0), + CHAN5G(184, 0), CHAN5G(188, 0), + CHAN5G(192, 0), CHAN5G(196, 0), + CHAN5G(200, 0), CHAN5G(204, 0), + CHAN5G(208, 0), CHAN5G(212, 0), + CHAN5G(216, 0), +}; + +static struct ieee80211_channel __wl_5ghz_n_channels[] = { + CHAN5G(32, 0), CHAN5G(34, 0), + CHAN5G(36, 0), CHAN5G(38, 0), + CHAN5G(40, 0), CHAN5G(42, 0), + CHAN5G(44, 0), CHAN5G(46, 0), + CHAN5G(48, 0), CHAN5G(50, 0), + CHAN5G(52, 0), CHAN5G(54, 0), + CHAN5G(56, 0), CHAN5G(58, 0), + CHAN5G(60, 0), CHAN5G(62, 0), + CHAN5G(64, 0), CHAN5G(66, 0), + CHAN5G(68, 0), CHAN5G(70, 0), + CHAN5G(72, 0), CHAN5G(74, 0), + CHAN5G(76, 0), CHAN5G(78, 0), + CHAN5G(80, 0), CHAN5G(82, 0), + CHAN5G(84, 0), CHAN5G(86, 0), + CHAN5G(88, 0), CHAN5G(90, 0), + CHAN5G(92, 0), CHAN5G(94, 0), + CHAN5G(96, 0), CHAN5G(98, 0), + CHAN5G(100, 0), CHAN5G(102, 0), + CHAN5G(104, 0), CHAN5G(106, 0), + CHAN5G(108, 0), CHAN5G(110, 0), + CHAN5G(112, 0), CHAN5G(114, 0), + CHAN5G(116, 0), CHAN5G(118, 0), + CHAN5G(120, 0), CHAN5G(122, 0), + CHAN5G(124, 0), CHAN5G(126, 0), + CHAN5G(128, 0), CHAN5G(130, 0), + CHAN5G(132, 0), CHAN5G(134, 0), + CHAN5G(136, 0), CHAN5G(138, 0), + CHAN5G(140, 0), CHAN5G(142, 0), + CHAN5G(144, 0), CHAN5G(145, 0), + CHAN5G(146, 0), CHAN5G(147, 0), + CHAN5G(148, 0), CHAN5G(149, 0), + CHAN5G(150, 0), CHAN5G(151, 0), + CHAN5G(152, 0), CHAN5G(153, 0), + CHAN5G(154, 0), CHAN5G(155, 0), + CHAN5G(156, 0), CHAN5G(157, 0), + CHAN5G(158, 0), CHAN5G(159, 0), + CHAN5G(160, 0), CHAN5G(161, 0), + CHAN5G(162, 0), CHAN5G(163, 0), + CHAN5G(164, 0), CHAN5G(165, 0), + CHAN5G(166, 0), CHAN5G(168, 0), + CHAN5G(170, 0), CHAN5G(172, 0), + CHAN5G(174, 0), CHAN5G(176, 0), + CHAN5G(178, 0), CHAN5G(180, 0), + CHAN5G(182, 0), CHAN5G(184, 0), + CHAN5G(186, 0), CHAN5G(188, 0), + CHAN5G(190, 0), CHAN5G(192, 0), + CHAN5G(194, 0), CHAN5G(196, 0), + CHAN5G(198, 0), CHAN5G(200, 0), + CHAN5G(202, 0), CHAN5G(204, 0), + CHAN5G(206, 0), CHAN5G(208, 0), + CHAN5G(210, 0), CHAN5G(212, 0), + CHAN5G(214, 0), CHAN5G(216, 0), + CHAN5G(218, 0), CHAN5G(220, 0), + CHAN5G(222, 0), CHAN5G(224, 0), + CHAN5G(226, 0), CHAN5G(228, 0), +}; + +static struct ieee80211_supported_band __wl_band_2ghz = { + .band = IEEE80211_BAND_2GHZ, + .channels = __wl_2ghz_channels, + .n_channels = ARRAY_SIZE(__wl_2ghz_channels), + .bitrates = wl_g_rates, + .n_bitrates = wl_g_rates_size, +}; + +static struct ieee80211_supported_band __wl_band_5ghz_a = { + .band = IEEE80211_BAND_5GHZ, + .channels = __wl_5ghz_a_channels, + .n_channels = ARRAY_SIZE(__wl_5ghz_a_channels), + .bitrates = wl_a_rates, + .n_bitrates = wl_a_rates_size, +}; + +static struct ieee80211_supported_band __wl_band_5ghz_n = { + .band = IEEE80211_BAND_5GHZ, + .channels = __wl_5ghz_n_channels, + .n_channels = ARRAY_SIZE(__wl_5ghz_n_channels), + .bitrates = wl_a_rates, + .n_bitrates = wl_a_rates_size, +}; + +static const u32 __wl_cipher_suites[] = { + WLAN_CIPHER_SUITE_WEP40, + WLAN_CIPHER_SUITE_WEP104, + WLAN_CIPHER_SUITE_TKIP, + WLAN_CIPHER_SUITE_CCMP, + WLAN_CIPHER_SUITE_AES_CMAC, +}; + +/* tag_ID/length/value_buffer tuple */ +struct brcmf_tlv { + u8 id; + u8 len; + u8 data[1]; +}; + +/* Quarter dBm units to mW + * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153 + * Table is offset so the last entry is largest mW value that fits in + * a u16. + */ + +#define QDBM_OFFSET 153 /* Offset for first entry */ +#define QDBM_TABLE_LEN 40 /* Table size */ + +/* Smallest mW value that will round up to the first table entry, QDBM_OFFSET. + * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2 + */ +#define QDBM_TABLE_LOW_BOUND 6493 /* Low bound */ + +/* Largest mW value that will round down to the last table entry, + * QDBM_OFFSET + QDBM_TABLE_LEN-1. + * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) + + * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2. + */ +#define QDBM_TABLE_HIGH_BOUND 64938 /* High bound */ + +static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = { +/* qdBm: +0 +1 +2 +3 +4 +5 +6 +7 */ +/* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000, +/* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849, +/* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119, +/* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811, +/* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096 +}; + +static u16 brcmf_qdbm_to_mw(u8 qdbm) +{ + uint factor = 1; + int idx = qdbm - QDBM_OFFSET; + + if (idx >= QDBM_TABLE_LEN) + /* clamp to max u16 mW value */ + return 0xFFFF; + + /* scale the qdBm index up to the range of the table 0-40 + * where an offset of 40 qdBm equals a factor of 10 mW. + */ + while (idx < 0) { + idx += 40; + factor *= 10; + } + + /* return the mW value scaled down to the correct factor of 10, + * adding in factor/2 to get proper rounding. + */ + return (nqdBm_to_mW_map[idx] + factor / 2) / factor; +} + +static u8 brcmf_mw_to_qdbm(u16 mw) +{ + u8 qdbm; + int offset; + uint mw_uint = mw; + uint boundary; + + /* handle boundary case */ + if (mw_uint <= 1) + return 0; + + offset = QDBM_OFFSET; + + /* move mw into the range of the table */ + while (mw_uint < QDBM_TABLE_LOW_BOUND) { + mw_uint *= 10; + offset -= 40; + } + + for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) { + boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] - + nqdBm_to_mW_map[qdbm]) / 2; + if (mw_uint < boundary) + break; + } + + qdbm += (u8) offset; + + return qdbm; +} + +/* function for reading/writing a single u32 from/to the dongle */ +static int +brcmf_exec_dcmd_u32(struct net_device *ndev, u32 cmd, u32 *par) +{ + int err; + __le32 par_le = cpu_to_le32(*par); + + err = brcmf_exec_dcmd(ndev, cmd, &par_le, sizeof(__le32)); + *par = le32_to_cpu(par_le); + + return err; +} + +static void convert_key_from_CPU(struct brcmf_wsec_key *key, + struct brcmf_wsec_key_le *key_le) +{ + key_le->index = cpu_to_le32(key->index); + key_le->len = cpu_to_le32(key->len); + key_le->algo = cpu_to_le32(key->algo); + key_le->flags = cpu_to_le32(key->flags); + key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi); + key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo); + key_le->iv_initialized = cpu_to_le32(key->iv_initialized); + memcpy(key_le->data, key->data, sizeof(key->data)); + memcpy(key_le->ea, key->ea, sizeof(key->ea)); +} + +static int send_key_to_dongle(struct net_device *ndev, + struct brcmf_wsec_key *key) +{ + int err; + struct brcmf_wsec_key_le key_le; + + convert_key_from_CPU(key, &key_le); + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_KEY, &key_le, sizeof(key_le)); + if (err) + WL_ERR("WLC_SET_KEY error (%d)\n", err); + return err; +} + +static s32 +brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev, + enum nl80211_iftype type, u32 *flags, + struct vif_params *params) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + struct wireless_dev *wdev; + s32 infra = 0; + s32 err = 0; + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + switch (type) { + case NL80211_IFTYPE_MONITOR: + case NL80211_IFTYPE_WDS: + WL_ERR("type (%d) : currently we do not support this type\n", + type); + return -EOPNOTSUPP; + case NL80211_IFTYPE_ADHOC: + cfg_priv->conf->mode = WL_MODE_IBSS; + infra = 0; + break; + case NL80211_IFTYPE_STATION: + cfg_priv->conf->mode = WL_MODE_BSS; + infra = 1; + break; + default: + err = -EINVAL; + goto done; + } + + err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_INFRA, &infra); + if (err) { + WL_ERR("WLC_SET_INFRA error (%d)\n", err); + err = -EAGAIN; + } else { + wdev = ndev->ieee80211_ptr; + wdev->iftype = type; + } + + WL_INFO("IF Type = %s\n", + (cfg_priv->conf->mode == WL_MODE_IBSS) ? "Adhoc" : "Infra"); + +done: + WL_TRACE("Exit\n"); + + return err; +} + +static s32 brcmf_dev_intvar_set(struct net_device *ndev, s8 *name, s32 val) +{ + s8 buf[BRCMF_DCMD_SMLEN]; + u32 len; + s32 err = 0; + __le32 val_le; + + val_le = cpu_to_le32(val); + len = brcmf_c_mkiovar(name, (char *)(&val_le), sizeof(val_le), buf, + sizeof(buf)); + BUG_ON(!len); + + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, buf, len); + if (err) + WL_ERR("error (%d)\n", err); + + return err; +} + +static s32 +brcmf_dev_intvar_get(struct net_device *ndev, s8 *name, s32 *retval) +{ + union { + s8 buf[BRCMF_DCMD_SMLEN]; + __le32 val; + } var; + u32 len; + u32 data_null; + s32 err = 0; + + len = + brcmf_c_mkiovar(name, (char *)(&data_null), 0, (char *)(&var), + sizeof(var.buf)); + BUG_ON(!len); + err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, &var, len); + if (err) + WL_ERR("error (%d)\n", err); + + *retval = le32_to_cpu(var.val); + + return err; +} + +static void brcmf_set_mpc(struct net_device *ndev, int mpc) +{ + s32 err = 0; + struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); + + if (test_bit(WL_STATUS_READY, &cfg_priv->status)) { + err = brcmf_dev_intvar_set(ndev, "mpc", mpc); + if (err) { + WL_ERR("fail to set mpc\n"); + return; + } + WL_INFO("MPC : %d\n", mpc); + } +} + +static void wl_iscan_prep(struct brcmf_scan_params_le *params_le, + struct brcmf_ssid *ssid) +{ + memcpy(params_le->bssid, ether_bcast, ETH_ALEN); + params_le->bss_type = DOT11_BSSTYPE_ANY; + params_le->scan_type = 0; + params_le->channel_num = 0; + params_le->nprobes = cpu_to_le32(-1); + params_le->active_time = cpu_to_le32(-1); + params_le->passive_time = cpu_to_le32(-1); + params_le->home_time = cpu_to_le32(-1); + if (ssid && ssid->SSID_len) + memcpy(¶ms_le->ssid_le, ssid, sizeof(struct brcmf_ssid)); +} + +static s32 +brcmf_dev_iovar_setbuf(struct net_device *ndev, s8 * iovar, void *param, + s32 paramlen, void *bufptr, s32 buflen) +{ + s32 iolen; + + iolen = brcmf_c_mkiovar(iovar, param, paramlen, bufptr, buflen); + BUG_ON(!iolen); + + return brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, bufptr, iolen); +} + +static s32 +brcmf_dev_iovar_getbuf(struct net_device *ndev, s8 * iovar, void *param, + s32 paramlen, void *bufptr, s32 buflen) +{ + s32 iolen; + + iolen = brcmf_c_mkiovar(iovar, param, paramlen, bufptr, buflen); + BUG_ON(!iolen); + + return brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, bufptr, buflen); +} + +static s32 +brcmf_run_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan, + struct brcmf_ssid *ssid, u16 action) +{ + s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE + + offsetof(struct brcmf_iscan_params_le, params_le); + struct brcmf_iscan_params_le *params; + s32 err = 0; + + if (ssid && ssid->SSID_len) + params_size += sizeof(struct brcmf_ssid); + params = kzalloc(params_size, GFP_KERNEL); + if (!params) + return -ENOMEM; + BUG_ON(params_size >= BRCMF_DCMD_SMLEN); + + wl_iscan_prep(¶ms->params_le, ssid); + + params->version = cpu_to_le32(BRCMF_ISCAN_REQ_VERSION); + params->action = cpu_to_le16(action); + params->scan_duration = cpu_to_le16(0); + + err = brcmf_dev_iovar_setbuf(iscan->ndev, "iscan", params, params_size, + iscan->dcmd_buf, BRCMF_DCMD_SMLEN); + if (err) { + if (err == -EBUSY) + WL_INFO("system busy : iscan canceled\n"); + else + WL_ERR("error (%d)\n", err); + } + + kfree(params); + return err; +} + +static s32 brcmf_do_iscan(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv); + struct net_device *ndev = cfg_to_ndev(cfg_priv); + struct brcmf_ssid ssid; + __le32 passive_scan; + s32 err = 0; + + /* Broadcast scan by default */ + memset(&ssid, 0, sizeof(ssid)); + + iscan->state = WL_ISCAN_STATE_SCANING; + + passive_scan = cfg_priv->active_scan ? 0 : cpu_to_le32(1); + err = brcmf_exec_dcmd(cfg_to_ndev(cfg_priv), BRCMF_C_SET_PASSIVE_SCAN, + &passive_scan, sizeof(passive_scan)); + if (err) { + WL_ERR("error (%d)\n", err); + return err; + } + brcmf_set_mpc(ndev, 0); + cfg_priv->iscan_kickstart = true; + err = brcmf_run_iscan(iscan, &ssid, BRCMF_SCAN_ACTION_START); + if (err) { + brcmf_set_mpc(ndev, 1); + cfg_priv->iscan_kickstart = false; + return err; + } + mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000); + iscan->timer_on = 1; + return err; +} + +static s32 +__brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_scan_request *request, + struct cfg80211_ssid *this_ssid) +{ + struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); + struct cfg80211_ssid *ssids; + struct brcmf_cfg80211_scan_req *sr = cfg_priv->scan_req_int; + __le32 passive_scan; + bool iscan_req; + bool spec_scan; + s32 err = 0; + u32 SSID_len; + + if (test_bit(WL_STATUS_SCANNING, &cfg_priv->status)) { + WL_ERR("Scanning already : status (%lu)\n", cfg_priv->status); + return -EAGAIN; + } + if (test_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status)) { + WL_ERR("Scanning being aborted : status (%lu)\n", + cfg_priv->status); + return -EAGAIN; + } + if (test_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) { + WL_ERR("Connecting : status (%lu)\n", + cfg_priv->status); + return -EAGAIN; + } + + iscan_req = false; + spec_scan = false; + if (request) { + /* scan bss */ + ssids = request->ssids; + if (cfg_priv->iscan_on && (!ssids || !ssids->ssid_len)) + iscan_req = true; + } else { + /* scan in ibss */ + /* we don't do iscan in ibss */ + ssids = this_ssid; + } + + cfg_priv->scan_request = request; + set_bit(WL_STATUS_SCANNING, &cfg_priv->status); + if (iscan_req) { + err = brcmf_do_iscan(cfg_priv); + if (!err) + return err; + else + goto scan_out; + } else { + WL_SCAN("ssid \"%s\", ssid_len (%d)\n", + ssids->ssid, ssids->ssid_len); + memset(&sr->ssid_le, 0, sizeof(sr->ssid_le)); + SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len); + sr->ssid_le.SSID_len = cpu_to_le32(0); + if (SSID_len) { + memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len); + sr->ssid_le.SSID_len = cpu_to_le32(SSID_len); + spec_scan = true; + } else { + WL_SCAN("Broadcast scan\n"); + } + + passive_scan = cfg_priv->active_scan ? 0 : cpu_to_le32(1); + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_PASSIVE_SCAN, + &passive_scan, sizeof(passive_scan)); + if (err) { + WL_ERR("WLC_SET_PASSIVE_SCAN error (%d)\n", err); + goto scan_out; + } + brcmf_set_mpc(ndev, 0); + err = brcmf_exec_dcmd(ndev, BRCMF_C_SCAN, &sr->ssid_le, + sizeof(sr->ssid_le)); + if (err) { + if (err == -EBUSY) + WL_INFO("system busy : scan for \"%s\" " + "canceled\n", sr->ssid_le.SSID); + else + WL_ERR("WLC_SCAN error (%d)\n", err); + + brcmf_set_mpc(ndev, 1); + goto scan_out; + } + } + + return 0; + +scan_out: + clear_bit(WL_STATUS_SCANNING, &cfg_priv->status); + cfg_priv->scan_request = NULL; + return err; +} + +static s32 +brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_scan_request *request) +{ + s32 err = 0; + + WL_TRACE("Enter\n"); + + if (!check_sys_up(wiphy)) + return -EIO; + + err = __brcmf_cfg80211_scan(wiphy, ndev, request, NULL); + if (err) + WL_ERR("scan error (%d)\n", err); + + WL_TRACE("Exit\n"); + return err; +} + +static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold) +{ + s32 err = 0; + + err = brcmf_dev_intvar_set(ndev, "rtsthresh", rts_threshold); + if (err) + WL_ERR("Error (%d)\n", err); + + return err; +} + +static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold) +{ + s32 err = 0; + + err = brcmf_dev_intvar_set(ndev, "fragthresh", frag_threshold); + if (err) + WL_ERR("Error (%d)\n", err); + + return err; +} + +static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l) +{ + s32 err = 0; + u32 cmd = (l ? BRCM_SET_LRL : BRCM_SET_SRL); + + err = brcmf_exec_dcmd_u32(ndev, cmd, &retry); + if (err) { + WL_ERR("cmd (%d) , error (%d)\n", cmd, err); + return err; + } + return err; +} + +static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + struct net_device *ndev = cfg_to_ndev(cfg_priv); + s32 err = 0; + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + if (changed & WIPHY_PARAM_RTS_THRESHOLD && + (cfg_priv->conf->rts_threshold != wiphy->rts_threshold)) { + cfg_priv->conf->rts_threshold = wiphy->rts_threshold; + err = brcmf_set_rts(ndev, cfg_priv->conf->rts_threshold); + if (!err) + goto done; + } + if (changed & WIPHY_PARAM_FRAG_THRESHOLD && + (cfg_priv->conf->frag_threshold != wiphy->frag_threshold)) { + cfg_priv->conf->frag_threshold = wiphy->frag_threshold; + err = brcmf_set_frag(ndev, cfg_priv->conf->frag_threshold); + if (!err) + goto done; + } + if (changed & WIPHY_PARAM_RETRY_LONG + && (cfg_priv->conf->retry_long != wiphy->retry_long)) { + cfg_priv->conf->retry_long = wiphy->retry_long; + err = brcmf_set_retry(ndev, cfg_priv->conf->retry_long, true); + if (!err) + goto done; + } + if (changed & WIPHY_PARAM_RETRY_SHORT + && (cfg_priv->conf->retry_short != wiphy->retry_short)) { + cfg_priv->conf->retry_short = wiphy->retry_short; + err = brcmf_set_retry(ndev, cfg_priv->conf->retry_short, false); + if (!err) + goto done; + } + +done: + WL_TRACE("Exit\n"); + return err; +} + +static void *brcmf_read_prof(struct brcmf_cfg80211_priv *cfg_priv, s32 item) +{ + switch (item) { + case WL_PROF_SEC: + return &cfg_priv->profile->sec; + case WL_PROF_BSSID: + return &cfg_priv->profile->bssid; + case WL_PROF_SSID: + return &cfg_priv->profile->ssid; + } + WL_ERR("invalid item (%d)\n", item); + return NULL; +} + +static s32 +brcmf_update_prof(struct brcmf_cfg80211_priv *cfg_priv, + const struct brcmf_event_msg *e, void *data, s32 item) +{ + s32 err = 0; + struct brcmf_ssid *ssid; + + switch (item) { + case WL_PROF_SSID: + ssid = (struct brcmf_ssid *) data; + memset(cfg_priv->profile->ssid.SSID, 0, + sizeof(cfg_priv->profile->ssid.SSID)); + memcpy(cfg_priv->profile->ssid.SSID, + ssid->SSID, ssid->SSID_len); + cfg_priv->profile->ssid.SSID_len = ssid->SSID_len; + break; + case WL_PROF_BSSID: + if (data) + memcpy(cfg_priv->profile->bssid, data, ETH_ALEN); + else + memset(cfg_priv->profile->bssid, 0, ETH_ALEN); + break; + case WL_PROF_SEC: + memcpy(&cfg_priv->profile->sec, data, + sizeof(cfg_priv->profile->sec)); + break; + case WL_PROF_BEACONINT: + cfg_priv->profile->beacon_interval = *(u16 *)data; + break; + case WL_PROF_DTIMPERIOD: + cfg_priv->profile->dtim_period = *(u8 *)data; + break; + default: + WL_ERR("unsupported item (%d)\n", item); + err = -EOPNOTSUPP; + break; + } + + return err; +} + +static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof) +{ + memset(prof, 0, sizeof(*prof)); +} + +static void brcmf_ch_to_chanspec(int ch, struct brcmf_join_params *join_params, + size_t *join_params_size) +{ + u16 chanspec = 0; + + if (ch != 0) { + if (ch <= CH_MAX_2G_CHANNEL) + chanspec |= WL_CHANSPEC_BAND_2G; + else + chanspec |= WL_CHANSPEC_BAND_5G; + + chanspec |= WL_CHANSPEC_BW_20; + chanspec |= WL_CHANSPEC_CTL_SB_NONE; + + *join_params_size += BRCMF_ASSOC_PARAMS_FIXED_SIZE + + sizeof(u16); + + chanspec |= (ch & WL_CHANSPEC_CHAN_MASK); + join_params->params_le.chanspec_list[0] = cpu_to_le16(chanspec); + join_params->params_le.chanspec_num = cpu_to_le32(1); + + WL_CONN("join_params->params.chanspec_list[0]= %#X," + "channel %d, chanspec %#X\n", + chanspec, ch, chanspec); + } +} + +static void brcmf_link_down(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct net_device *ndev = NULL; + s32 err = 0; + + WL_TRACE("Enter\n"); + + if (cfg_priv->link_up) { + ndev = cfg_to_ndev(cfg_priv); + WL_INFO("Call WLC_DISASSOC to stop excess roaming\n "); + err = brcmf_exec_dcmd(ndev, BRCMF_C_DISASSOC, NULL, 0); + if (err) + WL_ERR("WLC_DISASSOC failed (%d)\n", err); + cfg_priv->link_up = false; + } + WL_TRACE("Exit\n"); +} + +static s32 +brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_ibss_params *params) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + struct brcmf_join_params join_params; + size_t join_params_size = 0; + s32 err = 0; + s32 wsec = 0; + s32 bcnprd; + struct brcmf_ssid ssid; + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + if (params->ssid) + WL_CONN("SSID: %s\n", params->ssid); + else { + WL_CONN("SSID: NULL, Not supported\n"); + return -EOPNOTSUPP; + } + + set_bit(WL_STATUS_CONNECTING, &cfg_priv->status); + + if (params->bssid) + WL_CONN("BSSID: %02X %02X %02X %02X %02X %02X\n", + params->bssid[0], params->bssid[1], params->bssid[2], + params->bssid[3], params->bssid[4], params->bssid[5]); + else + WL_CONN("No BSSID specified\n"); + + if (params->channel) + WL_CONN("channel: %d\n", params->channel->center_freq); + else + WL_CONN("no channel specified\n"); + + if (params->channel_fixed) + WL_CONN("fixed channel required\n"); + else + WL_CONN("no fixed channel required\n"); + + if (params->ie && params->ie_len) + WL_CONN("ie len: %d\n", params->ie_len); + else + WL_CONN("no ie specified\n"); + + if (params->beacon_interval) + WL_CONN("beacon interval: %d\n", params->beacon_interval); + else + WL_CONN("no beacon interval specified\n"); + + if (params->basic_rates) + WL_CONN("basic rates: %08X\n", params->basic_rates); + else + WL_CONN("no basic rates specified\n"); + + if (params->privacy) + WL_CONN("privacy required\n"); + else + WL_CONN("no privacy required\n"); + + /* Configure Privacy for starter */ + if (params->privacy) + wsec |= WEP_ENABLED; + + err = brcmf_dev_intvar_set(ndev, "wsec", wsec); + if (err) { + WL_ERR("wsec failed (%d)\n", err); + goto done; + } + + /* Configure Beacon Interval for starter */ + if (params->beacon_interval) + bcnprd = params->beacon_interval; + else + bcnprd = 100; + + err = brcmf_exec_dcmd_u32(ndev, BRCM_SET_BCNPRD, &bcnprd); + if (err) { + WL_ERR("WLC_SET_BCNPRD failed (%d)\n", err); + goto done; + } + + /* Configure required join parameter */ + memset(&join_params, 0, sizeof(struct brcmf_join_params)); + + /* SSID */ + ssid.SSID_len = min_t(u32, params->ssid_len, 32); + memcpy(ssid.SSID, params->ssid, ssid.SSID_len); + memcpy(join_params.ssid_le.SSID, params->ssid, ssid.SSID_len); + join_params.ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len); + join_params_size = sizeof(join_params.ssid_le); + brcmf_update_prof(cfg_priv, NULL, &ssid, WL_PROF_SSID); + + /* BSSID */ + if (params->bssid) { + memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN); + join_params_size = sizeof(join_params.ssid_le) + + BRCMF_ASSOC_PARAMS_FIXED_SIZE; + } else { + memcpy(join_params.params_le.bssid, ether_bcast, ETH_ALEN); + } + + brcmf_update_prof(cfg_priv, NULL, + &join_params.params_le.bssid, WL_PROF_BSSID); + + /* Channel */ + if (params->channel) { + u32 target_channel; + + cfg_priv->channel = + ieee80211_frequency_to_channel( + params->channel->center_freq); + if (params->channel_fixed) { + /* adding chanspec */ + brcmf_ch_to_chanspec(cfg_priv->channel, + &join_params, &join_params_size); + } + + /* set channel for starter */ + target_channel = cfg_priv->channel; + err = brcmf_exec_dcmd_u32(ndev, BRCM_SET_CHANNEL, + &target_channel); + if (err) { + WL_ERR("WLC_SET_CHANNEL failed (%d)\n", err); + goto done; + } + } else + cfg_priv->channel = 0; + + cfg_priv->ibss_starter = false; + + + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SSID, + &join_params, join_params_size); + if (err) { + WL_ERR("WLC_SET_SSID failed (%d)\n", err); + goto done; + } + +done: + if (err) + clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status); + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + s32 err = 0; + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + brcmf_link_down(cfg_priv); + + WL_TRACE("Exit\n"); + + return err; +} + +static s32 brcmf_set_wpa_version(struct net_device *ndev, + struct cfg80211_connect_params *sme) +{ + struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); + struct brcmf_cfg80211_security *sec; + s32 val = 0; + s32 err = 0; + + if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) + val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED; + else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2) + val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED; + else + val = WPA_AUTH_DISABLED; + WL_CONN("setting wpa_auth to 0x%0x\n", val); + err = brcmf_dev_intvar_set(ndev, "wpa_auth", val); + if (err) { + WL_ERR("set wpa_auth failed (%d)\n", err); + return err; + } + sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC); + sec->wpa_versions = sme->crypto.wpa_versions; + return err; +} + +static s32 brcmf_set_auth_type(struct net_device *ndev, + struct cfg80211_connect_params *sme) +{ + struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); + struct brcmf_cfg80211_security *sec; + s32 val = 0; + s32 err = 0; + + switch (sme->auth_type) { + case NL80211_AUTHTYPE_OPEN_SYSTEM: + val = 0; + WL_CONN("open system\n"); + break; + case NL80211_AUTHTYPE_SHARED_KEY: + val = 1; + WL_CONN("shared key\n"); + break; + case NL80211_AUTHTYPE_AUTOMATIC: + val = 2; + WL_CONN("automatic\n"); + break; + case NL80211_AUTHTYPE_NETWORK_EAP: + WL_CONN("network eap\n"); + default: + val = 2; + WL_ERR("invalid auth type (%d)\n", sme->auth_type); + break; + } + + err = brcmf_dev_intvar_set(ndev, "auth", val); + if (err) { + WL_ERR("set auth failed (%d)\n", err); + return err; + } + sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC); + sec->auth_type = sme->auth_type; + return err; +} + +static s32 +brcmf_set_set_cipher(struct net_device *ndev, + struct cfg80211_connect_params *sme) +{ + struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); + struct brcmf_cfg80211_security *sec; + s32 pval = 0; + s32 gval = 0; + s32 err = 0; + + if (sme->crypto.n_ciphers_pairwise) { + switch (sme->crypto.ciphers_pairwise[0]) { + case WLAN_CIPHER_SUITE_WEP40: + case WLAN_CIPHER_SUITE_WEP104: + pval = WEP_ENABLED; + break; + case WLAN_CIPHER_SUITE_TKIP: + pval = TKIP_ENABLED; + break; + case WLAN_CIPHER_SUITE_CCMP: + pval = AES_ENABLED; + break; + case WLAN_CIPHER_SUITE_AES_CMAC: + pval = AES_ENABLED; + break; + default: + WL_ERR("invalid cipher pairwise (%d)\n", + sme->crypto.ciphers_pairwise[0]); + return -EINVAL; + } + } + if (sme->crypto.cipher_group) { + switch (sme->crypto.cipher_group) { + case WLAN_CIPHER_SUITE_WEP40: + case WLAN_CIPHER_SUITE_WEP104: + gval = WEP_ENABLED; + break; + case WLAN_CIPHER_SUITE_TKIP: + gval = TKIP_ENABLED; + break; + case WLAN_CIPHER_SUITE_CCMP: + gval = AES_ENABLED; + break; + case WLAN_CIPHER_SUITE_AES_CMAC: + gval = AES_ENABLED; + break; + default: + WL_ERR("invalid cipher group (%d)\n", + sme->crypto.cipher_group); + return -EINVAL; + } + } + + WL_CONN("pval (%d) gval (%d)\n", pval, gval); + err = brcmf_dev_intvar_set(ndev, "wsec", pval | gval); + if (err) { + WL_ERR("error (%d)\n", err); + return err; + } + + sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC); + sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0]; + sec->cipher_group = sme->crypto.cipher_group; + + return err; +} + +static s32 +brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme) +{ + struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); + struct brcmf_cfg80211_security *sec; + s32 val = 0; + s32 err = 0; + + if (sme->crypto.n_akm_suites) { + err = brcmf_dev_intvar_get(ndev, "wpa_auth", &val); + if (err) { + WL_ERR("could not get wpa_auth (%d)\n", err); + return err; + } + if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) { + switch (sme->crypto.akm_suites[0]) { + case WLAN_AKM_SUITE_8021X: + val = WPA_AUTH_UNSPECIFIED; + break; + case WLAN_AKM_SUITE_PSK: + val = WPA_AUTH_PSK; + break; + default: + WL_ERR("invalid cipher group (%d)\n", + sme->crypto.cipher_group); + return -EINVAL; + } + } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) { + switch (sme->crypto.akm_suites[0]) { + case WLAN_AKM_SUITE_8021X: + val = WPA2_AUTH_UNSPECIFIED; + break; + case WLAN_AKM_SUITE_PSK: + val = WPA2_AUTH_PSK; + break; + default: + WL_ERR("invalid cipher group (%d)\n", + sme->crypto.cipher_group); + return -EINVAL; + } + } + + WL_CONN("setting wpa_auth to %d\n", val); + err = brcmf_dev_intvar_set(ndev, "wpa_auth", val); + if (err) { + WL_ERR("could not set wpa_auth (%d)\n", err); + return err; + } + } + sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC); + sec->wpa_auth = sme->crypto.akm_suites[0]; + + return err; +} + +static s32 +brcmf_set_wep_sharedkey(struct net_device *ndev, + struct cfg80211_connect_params *sme) +{ + struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); + struct brcmf_cfg80211_security *sec; + struct brcmf_wsec_key key; + s32 val; + s32 err = 0; + + WL_CONN("key len (%d)\n", sme->key_len); + + if (sme->key_len == 0) + return 0; + + sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC); + WL_CONN("wpa_versions 0x%x cipher_pairwise 0x%x\n", + sec->wpa_versions, sec->cipher_pairwise); + + if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2)) + return 0; + + if (sec->cipher_pairwise & + (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)) { + memset(&key, 0, sizeof(key)); + key.len = (u32) sme->key_len; + key.index = (u32) sme->key_idx; + if (key.len > sizeof(key.data)) { + WL_ERR("Too long key length (%u)\n", key.len); + return -EINVAL; + } + memcpy(key.data, sme->key, key.len); + key.flags = BRCMF_PRIMARY_KEY; + switch (sec->cipher_pairwise) { + case WLAN_CIPHER_SUITE_WEP40: + key.algo = CRYPTO_ALGO_WEP1; + break; + case WLAN_CIPHER_SUITE_WEP104: + key.algo = CRYPTO_ALGO_WEP128; + break; + default: + WL_ERR("Invalid algorithm (%d)\n", + sme->crypto.ciphers_pairwise[0]); + return -EINVAL; + } + /* Set the new key/index */ + WL_CONN("key length (%d) key index (%d) algo (%d)\n", + key.len, key.index, key.algo); + WL_CONN("key \"%s\"\n", key.data); + err = send_key_to_dongle(ndev, &key); + if (err) + return err; + + if (sec->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) { + WL_CONN("set auth_type to shared key\n"); + val = 1; /* shared key */ + err = brcmf_dev_intvar_set(ndev, "auth", val); + if (err) { + WL_ERR("set auth failed (%d)\n", err); + return err; + } + } + } + return err; +} + +static s32 +brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_connect_params *sme) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + struct ieee80211_channel *chan = sme->channel; + struct brcmf_join_params join_params; + size_t join_params_size; + struct brcmf_ssid ssid; + + s32 err = 0; + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + if (!sme->ssid) { + WL_ERR("Invalid ssid\n"); + return -EOPNOTSUPP; + } + + set_bit(WL_STATUS_CONNECTING, &cfg_priv->status); + + if (chan) { + cfg_priv->channel = + ieee80211_frequency_to_channel(chan->center_freq); + WL_CONN("channel (%d), center_req (%d)\n", + cfg_priv->channel, chan->center_freq); + } else + cfg_priv->channel = 0; + + WL_INFO("ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len); + + err = brcmf_set_wpa_version(ndev, sme); + if (err) { + WL_ERR("wl_set_wpa_version failed (%d)\n", err); + goto done; + } + + err = brcmf_set_auth_type(ndev, sme); + if (err) { + WL_ERR("wl_set_auth_type failed (%d)\n", err); + goto done; + } + + err = brcmf_set_set_cipher(ndev, sme); + if (err) { + WL_ERR("wl_set_set_cipher failed (%d)\n", err); + goto done; + } + + err = brcmf_set_key_mgmt(ndev, sme); + if (err) { + WL_ERR("wl_set_key_mgmt failed (%d)\n", err); + goto done; + } + + err = brcmf_set_wep_sharedkey(ndev, sme); + if (err) { + WL_ERR("brcmf_set_wep_sharedkey failed (%d)\n", err); + goto done; + } + + memset(&join_params, 0, sizeof(join_params)); + join_params_size = sizeof(join_params.ssid_le); + + ssid.SSID_len = min_t(u32, sizeof(ssid.SSID), sme->ssid_len); + memcpy(&join_params.ssid_le.SSID, sme->ssid, ssid.SSID_len); + memcpy(&ssid.SSID, sme->ssid, ssid.SSID_len); + join_params.ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len); + brcmf_update_prof(cfg_priv, NULL, &ssid, WL_PROF_SSID); + + memcpy(join_params.params_le.bssid, ether_bcast, ETH_ALEN); + + if (ssid.SSID_len < IEEE80211_MAX_SSID_LEN) + WL_CONN("ssid \"%s\", len (%d)\n", + ssid.SSID, ssid.SSID_len); + + brcmf_ch_to_chanspec(cfg_priv->channel, + &join_params, &join_params_size); + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SSID, + &join_params, join_params_size); + if (err) + WL_ERR("WLC_SET_SSID failed (%d)\n", err); + +done: + if (err) + clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status); + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev, + u16 reason_code) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + struct brcmf_scb_val_le scbval; + s32 err = 0; + + WL_TRACE("Enter. Reason code = %d\n", reason_code); + if (!check_sys_up(wiphy)) + return -EIO; + + clear_bit(WL_STATUS_CONNECTED, &cfg_priv->status); + + memcpy(&scbval.ea, brcmf_read_prof(cfg_priv, WL_PROF_BSSID), ETH_ALEN); + scbval.val = cpu_to_le32(reason_code); + err = brcmf_exec_dcmd(ndev, BRCMF_C_DISASSOC, &scbval, + sizeof(struct brcmf_scb_val_le)); + if (err) + WL_ERR("error (%d)\n", err); + + cfg_priv->link_up = false; + + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, + enum nl80211_tx_power_setting type, s32 dbm) +{ + + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + struct net_device *ndev = cfg_to_ndev(cfg_priv); + u16 txpwrmw; + s32 err = 0; + s32 disable = 0; + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + switch (type) { + case NL80211_TX_POWER_AUTOMATIC: + break; + case NL80211_TX_POWER_LIMITED: + if (dbm < 0) { + WL_ERR("TX_POWER_LIMITED - dbm is negative\n"); + err = -EINVAL; + goto done; + } + break; + case NL80211_TX_POWER_FIXED: + if (dbm < 0) { + WL_ERR("TX_POWER_FIXED - dbm is negative\n"); + err = -EINVAL; + goto done; + } + break; + } + /* Make sure radio is off or on as far as software is concerned */ + disable = WL_RADIO_SW_DISABLE << 16; + err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_RADIO, &disable); + if (err) + WL_ERR("WLC_SET_RADIO error (%d)\n", err); + + if (dbm > 0xffff) + txpwrmw = 0xffff; + else + txpwrmw = (u16) dbm; + err = brcmf_dev_intvar_set(ndev, "qtxpower", + (s32) (brcmf_mw_to_qdbm(txpwrmw))); + if (err) + WL_ERR("qtxpower error (%d)\n", err); + cfg_priv->conf->tx_power = dbm; + +done: + WL_TRACE("Exit\n"); + return err; +} + +static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, s32 *dbm) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + struct net_device *ndev = cfg_to_ndev(cfg_priv); + s32 txpwrdbm; + u8 result; + s32 err = 0; + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + err = brcmf_dev_intvar_get(ndev, "qtxpower", &txpwrdbm); + if (err) { + WL_ERR("error (%d)\n", err); + goto done; + } + + result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE); + *dbm = (s32) brcmf_qdbm_to_mw(result); + +done: + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev, + u8 key_idx, bool unicast, bool multicast) +{ + u32 index; + u32 wsec; + s32 err = 0; + + WL_TRACE("Enter\n"); + WL_CONN("key index (%d)\n", key_idx); + if (!check_sys_up(wiphy)) + return -EIO; + + err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_WSEC, &wsec); + if (err) { + WL_ERR("WLC_GET_WSEC error (%d)\n", err); + goto done; + } + + if (wsec & WEP_ENABLED) { + /* Just select a new current key */ + index = key_idx; + err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_KEY_PRIMARY, + &index); + if (err) + WL_ERR("error (%d)\n", err); + } +done: + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev, + u8 key_idx, const u8 *mac_addr, struct key_params *params) +{ + struct brcmf_wsec_key key; + struct brcmf_wsec_key_le key_le; + s32 err = 0; + + memset(&key, 0, sizeof(key)); + key.index = (u32) key_idx; + /* Instead of bcast for ea address for default wep keys, + driver needs it to be Null */ + if (!is_multicast_ether_addr(mac_addr)) + memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN); + key.len = (u32) params->key_len; + /* check for key index change */ + if (key.len == 0) { + /* key delete */ + err = send_key_to_dongle(ndev, &key); + if (err) + return err; + } else { + if (key.len > sizeof(key.data)) { + WL_ERR("Invalid key length (%d)\n", key.len); + return -EINVAL; + } + + WL_CONN("Setting the key index %d\n", key.index); + memcpy(key.data, params->key, key.len); + + if (params->cipher == WLAN_CIPHER_SUITE_TKIP) { + u8 keybuf[8]; + memcpy(keybuf, &key.data[24], sizeof(keybuf)); + memcpy(&key.data[24], &key.data[16], sizeof(keybuf)); + memcpy(&key.data[16], keybuf, sizeof(keybuf)); + } + + /* if IW_ENCODE_EXT_RX_SEQ_VALID set */ + if (params->seq && params->seq_len == 6) { + /* rx iv */ + u8 *ivptr; + ivptr = (u8 *) params->seq; + key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) | + (ivptr[3] << 8) | ivptr[2]; + key.rxiv.lo = (ivptr[1] << 8) | ivptr[0]; + key.iv_initialized = true; + } + + switch (params->cipher) { + case WLAN_CIPHER_SUITE_WEP40: + key.algo = CRYPTO_ALGO_WEP1; + WL_CONN("WLAN_CIPHER_SUITE_WEP40\n"); + break; + case WLAN_CIPHER_SUITE_WEP104: + key.algo = CRYPTO_ALGO_WEP128; + WL_CONN("WLAN_CIPHER_SUITE_WEP104\n"); + break; + case WLAN_CIPHER_SUITE_TKIP: + key.algo = CRYPTO_ALGO_TKIP; + WL_CONN("WLAN_CIPHER_SUITE_TKIP\n"); + break; + case WLAN_CIPHER_SUITE_AES_CMAC: + key.algo = CRYPTO_ALGO_AES_CCM; + WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n"); + break; + case WLAN_CIPHER_SUITE_CCMP: + key.algo = CRYPTO_ALGO_AES_CCM; + WL_CONN("WLAN_CIPHER_SUITE_CCMP\n"); + break; + default: + WL_ERR("Invalid cipher (0x%x)\n", params->cipher); + return -EINVAL; + } + convert_key_from_CPU(&key, &key_le); + + brcmf_netdev_wait_pend8021x(ndev); + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_KEY, &key_le, + sizeof(key_le)); + if (err) { + WL_ERR("WLC_SET_KEY error (%d)\n", err); + return err; + } + } + return err; +} + +static s32 +brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, + u8 key_idx, bool pairwise, const u8 *mac_addr, + struct key_params *params) +{ + struct brcmf_wsec_key key; + s32 val; + s32 wsec; + s32 err = 0; + u8 keybuf[8]; + + WL_TRACE("Enter\n"); + WL_CONN("key index (%d)\n", key_idx); + if (!check_sys_up(wiphy)) + return -EIO; + + if (mac_addr) { + WL_TRACE("Exit"); + return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params); + } + memset(&key, 0, sizeof(key)); + + key.len = (u32) params->key_len; + key.index = (u32) key_idx; + + if (key.len > sizeof(key.data)) { + WL_ERR("Too long key length (%u)\n", key.len); + err = -EINVAL; + goto done; + } + memcpy(key.data, params->key, key.len); + + key.flags = BRCMF_PRIMARY_KEY; + switch (params->cipher) { + case WLAN_CIPHER_SUITE_WEP40: + key.algo = CRYPTO_ALGO_WEP1; + WL_CONN("WLAN_CIPHER_SUITE_WEP40\n"); + break; + case WLAN_CIPHER_SUITE_WEP104: + key.algo = CRYPTO_ALGO_WEP128; + WL_CONN("WLAN_CIPHER_SUITE_WEP104\n"); + break; + case WLAN_CIPHER_SUITE_TKIP: + memcpy(keybuf, &key.data[24], sizeof(keybuf)); + memcpy(&key.data[24], &key.data[16], sizeof(keybuf)); + memcpy(&key.data[16], keybuf, sizeof(keybuf)); + key.algo = CRYPTO_ALGO_TKIP; + WL_CONN("WLAN_CIPHER_SUITE_TKIP\n"); + break; + case WLAN_CIPHER_SUITE_AES_CMAC: + key.algo = CRYPTO_ALGO_AES_CCM; + WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n"); + break; + case WLAN_CIPHER_SUITE_CCMP: + key.algo = CRYPTO_ALGO_AES_CCM; + WL_CONN("WLAN_CIPHER_SUITE_CCMP\n"); + break; + default: + WL_ERR("Invalid cipher (0x%x)\n", params->cipher); + err = -EINVAL; + goto done; + } + + err = send_key_to_dongle(ndev, &key); /* Set the new key/index */ + if (err) + goto done; + + val = WEP_ENABLED; + err = brcmf_dev_intvar_get(ndev, "wsec", &wsec); + if (err) { + WL_ERR("get wsec error (%d)\n", err); + goto done; + } + wsec &= ~(WEP_ENABLED); + wsec |= val; + err = brcmf_dev_intvar_set(ndev, "wsec", wsec); + if (err) { + WL_ERR("set wsec error (%d)\n", err); + goto done; + } + + val = 1; /* assume shared key. otherwise 0 */ + err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_AUTH, &val); + if (err) + WL_ERR("WLC_SET_AUTH error (%d)\n", err); +done: + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, + u8 key_idx, bool pairwise, const u8 *mac_addr) +{ + struct brcmf_wsec_key key; + s32 err = 0; + s32 val; + s32 wsec; + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + memset(&key, 0, sizeof(key)); + + key.index = (u32) key_idx; + key.flags = BRCMF_PRIMARY_KEY; + key.algo = CRYPTO_ALGO_OFF; + + WL_CONN("key index (%d)\n", key_idx); + + /* Set the new key/index */ + err = send_key_to_dongle(ndev, &key); + if (err) { + if (err == -EINVAL) { + if (key.index >= DOT11_MAX_DEFAULT_KEYS) + /* we ignore this key index in this case */ + WL_ERR("invalid key index (%d)\n", key_idx); + } + /* Ignore this error, may happen during DISASSOC */ + err = -EAGAIN; + goto done; + } + + val = 0; + err = brcmf_dev_intvar_get(ndev, "wsec", &wsec); + if (err) { + WL_ERR("get wsec error (%d)\n", err); + /* Ignore this error, may happen during DISASSOC */ + err = -EAGAIN; + goto done; + } + wsec &= ~(WEP_ENABLED); + wsec |= val; + err = brcmf_dev_intvar_set(ndev, "wsec", wsec); + if (err) { + WL_ERR("set wsec error (%d)\n", err); + /* Ignore this error, may happen during DISASSOC */ + err = -EAGAIN; + goto done; + } + + val = 0; /* assume open key. otherwise 1 */ + err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_AUTH, &val); + if (err) { + WL_ERR("WLC_SET_AUTH error (%d)\n", err); + /* Ignore this error, may happen during DISASSOC */ + err = -EAGAIN; + } +done: + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, + u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie, + void (*callback) (void *cookie, struct key_params * params)) +{ + struct key_params params; + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + struct brcmf_cfg80211_security *sec; + s32 wsec; + s32 err = 0; + + WL_TRACE("Enter\n"); + WL_CONN("key index (%d)\n", key_idx); + if (!check_sys_up(wiphy)) + return -EIO; + + memset(¶ms, 0, sizeof(params)); + + err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_WSEC, &wsec); + if (err) { + WL_ERR("WLC_GET_WSEC error (%d)\n", err); + /* Ignore this error, may happen during DISASSOC */ + err = -EAGAIN; + goto done; + } + switch (wsec) { + case WEP_ENABLED: + sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC); + if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) { + params.cipher = WLAN_CIPHER_SUITE_WEP40; + WL_CONN("WLAN_CIPHER_SUITE_WEP40\n"); + } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) { + params.cipher = WLAN_CIPHER_SUITE_WEP104; + WL_CONN("WLAN_CIPHER_SUITE_WEP104\n"); + } + break; + case TKIP_ENABLED: + params.cipher = WLAN_CIPHER_SUITE_TKIP; + WL_CONN("WLAN_CIPHER_SUITE_TKIP\n"); + break; + case AES_ENABLED: + params.cipher = WLAN_CIPHER_SUITE_AES_CMAC; + WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n"); + break; + default: + WL_ERR("Invalid algo (0x%x)\n", wsec); + err = -EINVAL; + goto done; + } + callback(cookie, ¶ms); + +done: + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy, + struct net_device *ndev, u8 key_idx) +{ + WL_INFO("Not supported\n"); + + return -EOPNOTSUPP; +} + +static s32 +brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev, + u8 *mac, struct station_info *sinfo) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + struct brcmf_scb_val_le scb_val; + int rssi; + s32 rate; + s32 err = 0; + u8 *bssid = brcmf_read_prof(cfg_priv, WL_PROF_BSSID); + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + if (memcmp(mac, bssid, ETH_ALEN)) { + WL_ERR("Wrong Mac address cfg_mac-%X:%X:%X:%X:%X:%X" + "wl_bssid-%X:%X:%X:%X:%X:%X\n", + mac[0], mac[1], mac[2], mac[3], mac[4], mac[5], + bssid[0], bssid[1], bssid[2], bssid[3], + bssid[4], bssid[5]); + err = -ENOENT; + goto done; + } + + /* Report the current tx rate */ + err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_RATE, &rate); + if (err) { + WL_ERR("Could not get rate (%d)\n", err); + } else { + sinfo->filled |= STATION_INFO_TX_BITRATE; + sinfo->txrate.legacy = rate * 5; + WL_CONN("Rate %d Mbps\n", rate / 2); + } + + if (test_bit(WL_STATUS_CONNECTED, &cfg_priv->status)) { + scb_val.val = cpu_to_le32(0); + err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_RSSI, &scb_val, + sizeof(struct brcmf_scb_val_le)); + if (err) + WL_ERR("Could not get rssi (%d)\n", err); + + rssi = le32_to_cpu(scb_val.val); + sinfo->filled |= STATION_INFO_SIGNAL; + sinfo->signal = rssi; + WL_CONN("RSSI %d dBm\n", rssi); + } + +done: + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev, + bool enabled, s32 timeout) +{ + s32 pm; + s32 err = 0; + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + + WL_TRACE("Enter\n"); + + /* + * Powersave enable/disable request is coming from the + * cfg80211 even before the interface is up. In that + * scenario, driver will be storing the power save + * preference in cfg_priv struct to apply this to + * FW later while initializing the dongle + */ + cfg_priv->pwr_save = enabled; + if (!test_bit(WL_STATUS_READY, &cfg_priv->status)) { + + WL_INFO("Device is not ready," + "storing the value in cfg_priv struct\n"); + goto done; + } + + pm = enabled ? PM_FAST : PM_OFF; + WL_INFO("power save %s\n", (pm ? "enabled" : "disabled")); + + err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_PM, &pm); + if (err) { + if (err == -ENODEV) + WL_ERR("net_device is not ready yet\n"); + else + WL_ERR("error (%d)\n", err); + } +done: + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_set_bitrate_mask(struct wiphy *wiphy, struct net_device *ndev, + const u8 *addr, + const struct cfg80211_bitrate_mask *mask) +{ + struct brcm_rateset_le rateset_le; + s32 rate; + s32 val; + s32 err_bg; + s32 err_a; + u32 legacy; + s32 err = 0; + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + /* addr param is always NULL. ignore it */ + /* Get current rateset */ + err = brcmf_exec_dcmd(ndev, BRCM_GET_CURR_RATESET, &rateset_le, + sizeof(rateset_le)); + if (err) { + WL_ERR("could not get current rateset (%d)\n", err); + goto done; + } + + legacy = ffs(mask->control[IEEE80211_BAND_2GHZ].legacy & 0xFFFF); + if (!legacy) + legacy = ffs(mask->control[IEEE80211_BAND_5GHZ].legacy & + 0xFFFF); + + val = wl_g_rates[legacy - 1].bitrate * 100000; + + if (val < le32_to_cpu(rateset_le.count)) + /* Select rate by rateset index */ + rate = rateset_le.rates[val] & 0x7f; + else + /* Specified rate in bps */ + rate = val / 500000; + + WL_CONN("rate %d mbps\n", rate / 2); + + /* + * + * Set rate override, + * Since the is a/b/g-blind, both a/bg_rate are enforced. + */ + err_bg = brcmf_dev_intvar_set(ndev, "bg_rate", rate); + err_a = brcmf_dev_intvar_set(ndev, "a_rate", rate); + if (err_bg && err_a) { + WL_ERR("could not set fixed rate (%d) (%d)\n", err_bg, err_a); + err = err_bg | err_a; + } + +done: + WL_TRACE("Exit\n"); + return err; +} + +static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_priv *cfg_priv, + struct brcmf_bss_info *bi) +{ + struct wiphy *wiphy = cfg_to_wiphy(cfg_priv); + struct ieee80211_channel *notify_channel; + struct cfg80211_bss *bss; + struct ieee80211_supported_band *band; + s32 err = 0; + u16 channel; + u32 freq; + u64 notify_timestamp; + u16 notify_capability; + u16 notify_interval; + u8 *notify_ie; + size_t notify_ielen; + s32 notify_signal; + + if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) { + WL_ERR("Bss info is larger than buffer. Discarding\n"); + return 0; + } + + channel = bi->ctl_ch ? bi->ctl_ch : + CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec)); + + if (channel <= CH_MAX_2G_CHANNEL) + band = wiphy->bands[IEEE80211_BAND_2GHZ]; + else + band = wiphy->bands[IEEE80211_BAND_5GHZ]; + + freq = ieee80211_channel_to_frequency(channel, band->band); + notify_channel = ieee80211_get_channel(wiphy, freq); + + notify_timestamp = jiffies_to_msecs(jiffies)*1000; /* uSec */ + notify_capability = le16_to_cpu(bi->capability); + notify_interval = le16_to_cpu(bi->beacon_period); + notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset); + notify_ielen = le32_to_cpu(bi->ie_length); + notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100; + + WL_CONN("bssid: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n", + bi->BSSID[0], bi->BSSID[1], bi->BSSID[2], + bi->BSSID[3], bi->BSSID[4], bi->BSSID[5]); + WL_CONN("Channel: %d(%d)\n", channel, freq); + WL_CONN("Capability: %X\n", notify_capability); + WL_CONN("Beacon interval: %d\n", notify_interval); + WL_CONN("Signal: %d\n", notify_signal); + WL_CONN("notify_timestamp: %#018llx\n", notify_timestamp); + + bss = cfg80211_inform_bss(wiphy, notify_channel, (const u8 *)bi->BSSID, + notify_timestamp, notify_capability, notify_interval, notify_ie, + notify_ielen, notify_signal, GFP_KERNEL); + + if (!bss) { + WL_ERR("cfg80211_inform_bss_frame error\n"); + return -EINVAL; + } + + return err; +} + +static s32 brcmf_inform_bss(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_scan_results *bss_list; + struct brcmf_bss_info *bi = NULL; /* must be initialized */ + s32 err = 0; + int i; + + bss_list = cfg_priv->bss_list; + if (bss_list->version != BRCMF_BSS_INFO_VERSION) { + WL_ERR("Version %d != WL_BSS_INFO_VERSION\n", + bss_list->version); + return -EOPNOTSUPP; + } + WL_SCAN("scanned AP count (%d)\n", bss_list->count); + for (i = 0; i < bss_list->count && i < WL_AP_MAX; i++) { + bi = next_bss(bss_list, bi); + err = brcmf_inform_single_bss(cfg_priv, bi); + if (err) + break; + } + return err; +} + +static s32 wl_inform_ibss(struct brcmf_cfg80211_priv *cfg_priv, + struct net_device *ndev, const u8 *bssid) +{ + struct wiphy *wiphy = cfg_to_wiphy(cfg_priv); + struct ieee80211_channel *notify_channel; + struct brcmf_bss_info *bi = NULL; + struct ieee80211_supported_band *band; + u8 *buf = NULL; + s32 err = 0; + u16 channel; + u32 freq; + u64 notify_timestamp; + u16 notify_capability; + u16 notify_interval; + u8 *notify_ie; + size_t notify_ielen; + s32 notify_signal; + + WL_TRACE("Enter\n"); + + buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); + if (buf == NULL) { + err = -ENOMEM; + goto CleanUp; + } + + *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); + + err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_BSS_INFO, buf, WL_BSS_INFO_MAX); + if (err) { + WL_ERR("WLC_GET_BSS_INFO failed: %d\n", err); + goto CleanUp; + } + + bi = (struct brcmf_bss_info *)(buf + 4); + + channel = bi->ctl_ch ? bi->ctl_ch : + CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec)); + + if (channel <= CH_MAX_2G_CHANNEL) + band = wiphy->bands[IEEE80211_BAND_2GHZ]; + else + band = wiphy->bands[IEEE80211_BAND_5GHZ]; + + freq = ieee80211_channel_to_frequency(channel, band->band); + notify_channel = ieee80211_get_channel(wiphy, freq); + + notify_timestamp = jiffies_to_msecs(jiffies)*1000; /* uSec */ + notify_capability = le16_to_cpu(bi->capability); + notify_interval = le16_to_cpu(bi->beacon_period); + notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset); + notify_ielen = le32_to_cpu(bi->ie_length); + notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100; + + WL_CONN("channel: %d(%d)\n", channel, freq); + WL_CONN("capability: %X\n", notify_capability); + WL_CONN("beacon interval: %d\n", notify_interval); + WL_CONN("signal: %d\n", notify_signal); + WL_CONN("notify_timestamp: %#018llx\n", notify_timestamp); + + cfg80211_inform_bss(wiphy, notify_channel, bssid, + notify_timestamp, notify_capability, notify_interval, + notify_ie, notify_ielen, notify_signal, GFP_KERNEL); + +CleanUp: + + kfree(buf); + + WL_TRACE("Exit\n"); + + return err; +} + +static bool brcmf_is_ibssmode(struct brcmf_cfg80211_priv *cfg_priv) +{ + return cfg_priv->conf->mode == WL_MODE_IBSS; +} + +/* + * Traverse a string of 1-byte tag/1-byte length/variable-length value + * triples, returning a pointer to the substring whose first element + * matches tag + */ +static struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key) +{ + struct brcmf_tlv *elt; + int totlen; + + elt = (struct brcmf_tlv *) buf; + totlen = buflen; + + /* find tagged parameter */ + while (totlen >= 2) { + int len = elt->len; + + /* validate remaining totlen */ + if ((elt->id == key) && (totlen >= (len + 2))) + return elt; + + elt = (struct brcmf_tlv *) ((u8 *) elt + (len + 2)); + totlen -= (len + 2); + } + + return NULL; +} + +static s32 brcmf_update_bss_info(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_bss_info *bi; + struct brcmf_ssid *ssid; + struct brcmf_tlv *tim; + u16 beacon_interval; + u8 dtim_period; + size_t ie_len; + u8 *ie; + s32 err = 0; + + WL_TRACE("Enter\n"); + if (brcmf_is_ibssmode(cfg_priv)) + return err; + + ssid = (struct brcmf_ssid *)brcmf_read_prof(cfg_priv, WL_PROF_SSID); + + *(__le32 *)cfg_priv->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX); + err = brcmf_exec_dcmd(cfg_to_ndev(cfg_priv), BRCMF_C_GET_BSS_INFO, + cfg_priv->extra_buf, WL_EXTRA_BUF_MAX); + if (err) { + WL_ERR("Could not get bss info %d\n", err); + goto update_bss_info_out; + } + + bi = (struct brcmf_bss_info *)(cfg_priv->extra_buf + 4); + err = brcmf_inform_single_bss(cfg_priv, bi); + if (err) + goto update_bss_info_out; + + ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset); + ie_len = le32_to_cpu(bi->ie_length); + beacon_interval = le16_to_cpu(bi->beacon_period); + + tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM); + if (tim) + dtim_period = tim->data[1]; + else { + /* + * active scan was done so we could not get dtim + * information out of probe response. + * so we speficially query dtim information to dongle. + */ + u32 var; + err = brcmf_dev_intvar_get(cfg_to_ndev(cfg_priv), + "dtim_assoc", &var); + if (err) { + WL_ERR("wl dtim_assoc failed (%d)\n", err); + goto update_bss_info_out; + } + dtim_period = (u8)var; + } + + brcmf_update_prof(cfg_priv, NULL, &beacon_interval, WL_PROF_BEACONINT); + brcmf_update_prof(cfg_priv, NULL, &dtim_period, WL_PROF_DTIMPERIOD); + +update_bss_info_out: + WL_TRACE("Exit"); + return err; +} + +static void brcmf_term_iscan(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv); + struct brcmf_ssid ssid; + + if (cfg_priv->iscan_on) { + iscan->state = WL_ISCAN_STATE_IDLE; + + if (iscan->timer_on) { + del_timer_sync(&iscan->timer); + iscan->timer_on = 0; + } + + cancel_work_sync(&iscan->work); + + /* Abort iscan running in FW */ + memset(&ssid, 0, sizeof(ssid)); + brcmf_run_iscan(iscan, &ssid, WL_SCAN_ACTION_ABORT); + } +} + +static void brcmf_notify_iscan_complete(struct brcmf_cfg80211_iscan_ctrl *iscan, + bool aborted) +{ + struct brcmf_cfg80211_priv *cfg_priv = iscan_to_cfg(iscan); + struct net_device *ndev = cfg_to_ndev(cfg_priv); + + if (!test_and_clear_bit(WL_STATUS_SCANNING, &cfg_priv->status)) { + WL_ERR("Scan complete while device not scanning\n"); + return; + } + if (cfg_priv->scan_request) { + WL_SCAN("ISCAN Completed scan: %s\n", + aborted ? "Aborted" : "Done"); + cfg80211_scan_done(cfg_priv->scan_request, aborted); + brcmf_set_mpc(ndev, 1); + cfg_priv->scan_request = NULL; + } + cfg_priv->iscan_kickstart = false; +} + +static s32 brcmf_wakeup_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan) +{ + if (iscan->state != WL_ISCAN_STATE_IDLE) { + WL_SCAN("wake up iscan\n"); + schedule_work(&iscan->work); + return 0; + } + + return -EIO; +} + +static s32 +brcmf_get_iscan_results(struct brcmf_cfg80211_iscan_ctrl *iscan, u32 *status, + struct brcmf_scan_results **bss_list) +{ + struct brcmf_iscan_results list; + struct brcmf_scan_results *results; + struct brcmf_scan_results_le *results_le; + struct brcmf_iscan_results *list_buf; + s32 err = 0; + + memset(iscan->scan_buf, 0, WL_ISCAN_BUF_MAX); + list_buf = (struct brcmf_iscan_results *)iscan->scan_buf; + results = &list_buf->results; + results_le = &list_buf->results_le; + results->buflen = BRCMF_ISCAN_RESULTS_FIXED_SIZE; + results->version = 0; + results->count = 0; + + memset(&list, 0, sizeof(list)); + list.results_le.buflen = cpu_to_le32(WL_ISCAN_BUF_MAX); + err = brcmf_dev_iovar_getbuf(iscan->ndev, "iscanresults", &list, + BRCMF_ISCAN_RESULTS_FIXED_SIZE, + iscan->scan_buf, WL_ISCAN_BUF_MAX); + if (err) { + WL_ERR("error (%d)\n", err); + return err; + } + results->buflen = le32_to_cpu(results_le->buflen); + results->version = le32_to_cpu(results_le->version); + results->count = le32_to_cpu(results_le->count); + WL_SCAN("results->count = %d\n", results_le->count); + WL_SCAN("results->buflen = %d\n", results_le->buflen); + *status = le32_to_cpu(list_buf->status_le); + WL_SCAN("status = %d\n", *status); + *bss_list = results; + + return err; +} + +static s32 brcmf_iscan_done(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan; + s32 err = 0; + + iscan->state = WL_ISCAN_STATE_IDLE; + brcmf_inform_bss(cfg_priv); + brcmf_notify_iscan_complete(iscan, false); + + return err; +} + +static s32 brcmf_iscan_pending(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan; + s32 err = 0; + + /* Reschedule the timer */ + mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000); + iscan->timer_on = 1; + + return err; +} + +static s32 brcmf_iscan_inprogress(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan; + s32 err = 0; + + brcmf_inform_bss(cfg_priv); + brcmf_run_iscan(iscan, NULL, BRCMF_SCAN_ACTION_CONTINUE); + /* Reschedule the timer */ + mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000); + iscan->timer_on = 1; + + return err; +} + +static s32 brcmf_iscan_aborted(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan; + s32 err = 0; + + iscan->state = WL_ISCAN_STATE_IDLE; + brcmf_notify_iscan_complete(iscan, true); + + return err; +} + +static void brcmf_cfg80211_iscan_handler(struct work_struct *work) +{ + struct brcmf_cfg80211_iscan_ctrl *iscan = + container_of(work, struct brcmf_cfg80211_iscan_ctrl, + work); + struct brcmf_cfg80211_priv *cfg_priv = iscan_to_cfg(iscan); + struct brcmf_cfg80211_iscan_eloop *el = &iscan->el; + u32 status = BRCMF_SCAN_RESULTS_PARTIAL; + + if (iscan->timer_on) { + del_timer_sync(&iscan->timer); + iscan->timer_on = 0; + } + + if (brcmf_get_iscan_results(iscan, &status, &cfg_priv->bss_list)) { + status = BRCMF_SCAN_RESULTS_ABORTED; + WL_ERR("Abort iscan\n"); + } + + el->handler[status](cfg_priv); +} + +static void brcmf_iscan_timer(unsigned long data) +{ + struct brcmf_cfg80211_iscan_ctrl *iscan = + (struct brcmf_cfg80211_iscan_ctrl *)data; + + if (iscan) { + iscan->timer_on = 0; + WL_SCAN("timer expired\n"); + brcmf_wakeup_iscan(iscan); + } +} + +static s32 brcmf_invoke_iscan(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv); + + if (cfg_priv->iscan_on) { + iscan->state = WL_ISCAN_STATE_IDLE; + INIT_WORK(&iscan->work, brcmf_cfg80211_iscan_handler); + } + + return 0; +} + +static void brcmf_init_iscan_eloop(struct brcmf_cfg80211_iscan_eloop *el) +{ + memset(el, 0, sizeof(*el)); + el->handler[BRCMF_SCAN_RESULTS_SUCCESS] = brcmf_iscan_done; + el->handler[BRCMF_SCAN_RESULTS_PARTIAL] = brcmf_iscan_inprogress; + el->handler[BRCMF_SCAN_RESULTS_PENDING] = brcmf_iscan_pending; + el->handler[BRCMF_SCAN_RESULTS_ABORTED] = brcmf_iscan_aborted; + el->handler[BRCMF_SCAN_RESULTS_NO_MEM] = brcmf_iscan_aborted; +} + +static s32 brcmf_init_iscan(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv); + int err = 0; + + if (cfg_priv->iscan_on) { + iscan->ndev = cfg_to_ndev(cfg_priv); + brcmf_init_iscan_eloop(&iscan->el); + iscan->timer_ms = WL_ISCAN_TIMER_INTERVAL_MS; + init_timer(&iscan->timer); + iscan->timer.data = (unsigned long) iscan; + iscan->timer.function = brcmf_iscan_timer; + err = brcmf_invoke_iscan(cfg_priv); + if (!err) + iscan->data = cfg_priv; + } + + return err; +} + +static void brcmf_delay(u32 ms) +{ + if (ms < 1000 / HZ) { + cond_resched(); + mdelay(ms); + } else { + msleep(ms); + } +} + +static s32 brcmf_cfg80211_resume(struct wiphy *wiphy) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + + /* + * Check for WL_STATUS_READY before any function call which + * could result is bus access. Don't block the resume for + * any driver error conditions + */ + WL_TRACE("Enter\n"); + + if (test_bit(WL_STATUS_READY, &cfg_priv->status)) + brcmf_invoke_iscan(wiphy_to_cfg(wiphy)); + + WL_TRACE("Exit\n"); + return 0; +} + +static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy, + struct cfg80211_wowlan *wow) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + struct net_device *ndev = cfg_to_ndev(cfg_priv); + + WL_TRACE("Enter\n"); + + /* + * Check for WL_STATUS_READY before any function call which + * could result is bus access. Don't block the suspend for + * any driver error conditions + */ + + /* + * While going to suspend if associated with AP disassociate + * from AP to save power while system is in suspended state + */ + if ((test_bit(WL_STATUS_CONNECTED, &cfg_priv->status) || + test_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) && + test_bit(WL_STATUS_READY, &cfg_priv->status)) { + WL_INFO("Disassociating from AP" + " while entering suspend state\n"); + brcmf_link_down(cfg_priv); + + /* + * Make sure WPA_Supplicant receives all the event + * generated due to DISASSOC call to the fw to keep + * the state fw and WPA_Supplicant state consistent + */ + brcmf_delay(500); + } + + set_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status); + if (test_bit(WL_STATUS_READY, &cfg_priv->status)) + brcmf_term_iscan(cfg_priv); + + if (cfg_priv->scan_request) { + /* Indidate scan abort to cfg80211 layer */ + WL_INFO("Terminating scan in progress\n"); + cfg80211_scan_done(cfg_priv->scan_request, true); + cfg_priv->scan_request = NULL; + } + clear_bit(WL_STATUS_SCANNING, &cfg_priv->status); + clear_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status); + + /* Turn off watchdog timer */ + if (test_bit(WL_STATUS_READY, &cfg_priv->status)) { + WL_INFO("Enable MPC\n"); + brcmf_set_mpc(ndev, 1); + } + + WL_TRACE("Exit\n"); + + return 0; +} + +static __used s32 +brcmf_dev_bufvar_set(struct net_device *ndev, s8 *name, s8 *buf, s32 len) +{ + struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); + u32 buflen; + + buflen = brcmf_c_mkiovar(name, buf, len, cfg_priv->dcmd_buf, + WL_DCMD_LEN_MAX); + BUG_ON(!buflen); + + return brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, cfg_priv->dcmd_buf, + buflen); +} + +static s32 +brcmf_dev_bufvar_get(struct net_device *ndev, s8 *name, s8 *buf, + s32 buf_len) +{ + struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); + u32 len; + s32 err = 0; + + len = brcmf_c_mkiovar(name, NULL, 0, cfg_priv->dcmd_buf, + WL_DCMD_LEN_MAX); + BUG_ON(!len); + err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, cfg_priv->dcmd_buf, + WL_DCMD_LEN_MAX); + if (err) { + WL_ERR("error (%d)\n", err); + return err; + } + memcpy(buf, cfg_priv->dcmd_buf, buf_len); + + return err; +} + +static __used s32 +brcmf_update_pmklist(struct net_device *ndev, + struct brcmf_cfg80211_pmk_list *pmk_list, s32 err) +{ + int i, j; + int pmkid_len; + + pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid); + + WL_CONN("No of elements %d\n", pmkid_len); + for (i = 0; i < pmkid_len; i++) { + WL_CONN("PMKID[%d]: %pM =\n", i, + &pmk_list->pmkids.pmkid[i].BSSID); + for (j = 0; j < WLAN_PMKID_LEN; j++) + WL_CONN("%02x\n", pmk_list->pmkids.pmkid[i].PMKID[j]); + } + + if (!err) + brcmf_dev_bufvar_set(ndev, "pmkid_info", (char *)pmk_list, + sizeof(*pmk_list)); + + return err; +} + +static s32 +brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_pmksa *pmksa) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + struct pmkid_list *pmkids = &cfg_priv->pmk_list->pmkids; + s32 err = 0; + int i; + int pmkid_len; + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + pmkid_len = le32_to_cpu(pmkids->npmkid); + for (i = 0; i < pmkid_len; i++) + if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN)) + break; + if (i < WL_NUM_PMKIDS_MAX) { + memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN); + memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN); + if (i == pmkid_len) { + pmkid_len++; + pmkids->npmkid = cpu_to_le32(pmkid_len); + } + } else + err = -EINVAL; + + WL_CONN("set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n", + pmkids->pmkid[pmkid_len].BSSID); + for (i = 0; i < WLAN_PMKID_LEN; i++) + WL_CONN("%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]); + + err = brcmf_update_pmklist(ndev, cfg_priv->pmk_list, err); + + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev, + struct cfg80211_pmksa *pmksa) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + struct pmkid_list pmkid; + s32 err = 0; + int i, pmkid_len; + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN); + memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN); + + WL_CONN("del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n", + &pmkid.pmkid[0].BSSID); + for (i = 0; i < WLAN_PMKID_LEN; i++) + WL_CONN("%02x\n", pmkid.pmkid[0].PMKID[i]); + + pmkid_len = le32_to_cpu(cfg_priv->pmk_list->pmkids.npmkid); + for (i = 0; i < pmkid_len; i++) + if (!memcmp + (pmksa->bssid, &cfg_priv->pmk_list->pmkids.pmkid[i].BSSID, + ETH_ALEN)) + break; + + if ((pmkid_len > 0) + && (i < pmkid_len)) { + memset(&cfg_priv->pmk_list->pmkids.pmkid[i], 0, + sizeof(struct pmkid)); + for (; i < (pmkid_len - 1); i++) { + memcpy(&cfg_priv->pmk_list->pmkids.pmkid[i].BSSID, + &cfg_priv->pmk_list->pmkids.pmkid[i + 1].BSSID, + ETH_ALEN); + memcpy(&cfg_priv->pmk_list->pmkids.pmkid[i].PMKID, + &cfg_priv->pmk_list->pmkids.pmkid[i + 1].PMKID, + WLAN_PMKID_LEN); + } + cfg_priv->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1); + } else + err = -EINVAL; + + err = brcmf_update_pmklist(ndev, cfg_priv->pmk_list, err); + + WL_TRACE("Exit\n"); + return err; + +} + +static s32 +brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev) +{ + struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy); + s32 err = 0; + + WL_TRACE("Enter\n"); + if (!check_sys_up(wiphy)) + return -EIO; + + memset(cfg_priv->pmk_list, 0, sizeof(*cfg_priv->pmk_list)); + err = brcmf_update_pmklist(ndev, cfg_priv->pmk_list, err); + + WL_TRACE("Exit\n"); + return err; + +} + +static struct cfg80211_ops wl_cfg80211_ops = { + .change_virtual_intf = brcmf_cfg80211_change_iface, + .scan = brcmf_cfg80211_scan, + .set_wiphy_params = brcmf_cfg80211_set_wiphy_params, + .join_ibss = brcmf_cfg80211_join_ibss, + .leave_ibss = brcmf_cfg80211_leave_ibss, + .get_station = brcmf_cfg80211_get_station, + .set_tx_power = brcmf_cfg80211_set_tx_power, + .get_tx_power = brcmf_cfg80211_get_tx_power, + .add_key = brcmf_cfg80211_add_key, + .del_key = brcmf_cfg80211_del_key, + .get_key = brcmf_cfg80211_get_key, + .set_default_key = brcmf_cfg80211_config_default_key, + .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key, + .set_power_mgmt = brcmf_cfg80211_set_power_mgmt, + .set_bitrate_mask = brcmf_cfg80211_set_bitrate_mask, + .connect = brcmf_cfg80211_connect, + .disconnect = brcmf_cfg80211_disconnect, + .suspend = brcmf_cfg80211_suspend, + .resume = brcmf_cfg80211_resume, + .set_pmksa = brcmf_cfg80211_set_pmksa, + .del_pmksa = brcmf_cfg80211_del_pmksa, + .flush_pmksa = brcmf_cfg80211_flush_pmksa +}; + +static s32 brcmf_mode_to_nl80211_iftype(s32 mode) +{ + s32 err = 0; + + switch (mode) { + case WL_MODE_BSS: + return NL80211_IFTYPE_STATION; + case WL_MODE_IBSS: + return NL80211_IFTYPE_ADHOC; + default: + return NL80211_IFTYPE_UNSPECIFIED; + } + + return err; +} + +static struct wireless_dev *brcmf_alloc_wdev(s32 sizeof_iface, + struct device *ndev) +{ + struct wireless_dev *wdev; + s32 err = 0; + + wdev = kzalloc(sizeof(*wdev), GFP_KERNEL); + if (!wdev) + return ERR_PTR(-ENOMEM); + + wdev->wiphy = + wiphy_new(&wl_cfg80211_ops, + sizeof(struct brcmf_cfg80211_priv) + sizeof_iface); + if (!wdev->wiphy) { + WL_ERR("Couldn not allocate wiphy device\n"); + err = -ENOMEM; + goto wiphy_new_out; + } + set_wiphy_dev(wdev->wiphy, ndev); + wdev->wiphy->max_scan_ssids = WL_NUM_SCAN_MAX; + wdev->wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX; + wdev->wiphy->interface_modes = + BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); + wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz; + wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_a; /* Set + * it as 11a by default. + * This will be updated with + * 11n phy tables in + * "ifconfig up" + * if phy has 11n capability + */ + wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; + wdev->wiphy->cipher_suites = __wl_cipher_suites; + wdev->wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites); + wdev->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; /* enable power + * save mode + * by default + */ + err = wiphy_register(wdev->wiphy); + if (err < 0) { + WL_ERR("Couldn not register wiphy device (%d)\n", err); + goto wiphy_register_out; + } + return wdev; + +wiphy_register_out: + wiphy_free(wdev->wiphy); + +wiphy_new_out: + kfree(wdev); + + return ERR_PTR(err); +} + +static void brcmf_free_wdev(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct wireless_dev *wdev = cfg_priv->wdev; + + if (!wdev) { + WL_ERR("wdev is invalid\n"); + return; + } + wiphy_unregister(wdev->wiphy); + wiphy_free(wdev->wiphy); + kfree(wdev); + cfg_priv->wdev = NULL; +} + +static bool brcmf_is_linkup(struct brcmf_cfg80211_priv *cfg_priv, + const struct brcmf_event_msg *e) +{ + u32 event = be32_to_cpu(e->event_type); + u32 status = be32_to_cpu(e->status); + + if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) { + WL_CONN("Processing set ssid\n"); + cfg_priv->link_up = true; + return true; + } + + return false; +} + +static bool brcmf_is_linkdown(struct brcmf_cfg80211_priv *cfg_priv, + const struct brcmf_event_msg *e) +{ + u32 event = be32_to_cpu(e->event_type); + u16 flags = be16_to_cpu(e->flags); + + if (event == BRCMF_E_LINK && (!(flags & BRCMF_EVENT_MSG_LINK))) { + WL_CONN("Processing link down\n"); + return true; + } + return false; +} + +static bool brcmf_is_nonetwork(struct brcmf_cfg80211_priv *cfg_priv, + const struct brcmf_event_msg *e) +{ + u32 event = be32_to_cpu(e->event_type); + u32 status = be32_to_cpu(e->status); + + if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) { + WL_CONN("Processing Link %s & no network found\n", + be16_to_cpu(e->flags) & BRCMF_EVENT_MSG_LINK ? + "up" : "down"); + return true; + } + + if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) { + WL_CONN("Processing connecting & no network found\n"); + return true; + } + + return false; +} + +static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv); + + kfree(conn_info->req_ie); + conn_info->req_ie = NULL; + conn_info->req_ie_len = 0; + kfree(conn_info->resp_ie); + conn_info->resp_ie = NULL; + conn_info->resp_ie_len = 0; +} + +static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct net_device *ndev = cfg_to_ndev(cfg_priv); + struct brcmf_cfg80211_assoc_ielen_le *assoc_info; + struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv); + u32 req_len; + u32 resp_len; + s32 err = 0; + + brcmf_clear_assoc_ies(cfg_priv); + + err = brcmf_dev_bufvar_get(ndev, "assoc_info", cfg_priv->extra_buf, + WL_ASSOC_INFO_MAX); + if (err) { + WL_ERR("could not get assoc info (%d)\n", err); + return err; + } + assoc_info = + (struct brcmf_cfg80211_assoc_ielen_le *)cfg_priv->extra_buf; + req_len = le32_to_cpu(assoc_info->req_len); + resp_len = le32_to_cpu(assoc_info->resp_len); + if (req_len) { + err = brcmf_dev_bufvar_get(ndev, "assoc_req_ies", + cfg_priv->extra_buf, + WL_ASSOC_INFO_MAX); + if (err) { + WL_ERR("could not get assoc req (%d)\n", err); + return err; + } + conn_info->req_ie_len = req_len; + conn_info->req_ie = + kmemdup(cfg_priv->extra_buf, conn_info->req_ie_len, + GFP_KERNEL); + } else { + conn_info->req_ie_len = 0; + conn_info->req_ie = NULL; + } + if (resp_len) { + err = brcmf_dev_bufvar_get(ndev, "assoc_resp_ies", + cfg_priv->extra_buf, + WL_ASSOC_INFO_MAX); + if (err) { + WL_ERR("could not get assoc resp (%d)\n", err); + return err; + } + conn_info->resp_ie_len = resp_len; + conn_info->resp_ie = + kmemdup(cfg_priv->extra_buf, conn_info->resp_ie_len, + GFP_KERNEL); + } else { + conn_info->resp_ie_len = 0; + conn_info->resp_ie = NULL; + } + WL_CONN("req len (%d) resp len (%d)\n", + conn_info->req_ie_len, conn_info->resp_ie_len); + + return err; +} + +static s32 +brcmf_bss_roaming_done(struct brcmf_cfg80211_priv *cfg_priv, + struct net_device *ndev, + const struct brcmf_event_msg *e) +{ + struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv); + struct wiphy *wiphy = cfg_to_wiphy(cfg_priv); + struct brcmf_channel_info_le channel_le; + struct ieee80211_channel *notify_channel; + struct ieee80211_supported_band *band; + u32 freq; + s32 err = 0; + u32 target_channel; + + WL_TRACE("Enter\n"); + + brcmf_get_assoc_ies(cfg_priv); + brcmf_update_prof(cfg_priv, NULL, &e->addr, WL_PROF_BSSID); + brcmf_update_bss_info(cfg_priv); + + brcmf_exec_dcmd(ndev, BRCMF_C_GET_CHANNEL, &channel_le, + sizeof(channel_le)); + + target_channel = le32_to_cpu(channel_le.target_channel); + WL_CONN("Roamed to channel %d\n", target_channel); + + if (target_channel <= CH_MAX_2G_CHANNEL) + band = wiphy->bands[IEEE80211_BAND_2GHZ]; + else + band = wiphy->bands[IEEE80211_BAND_5GHZ]; + + freq = ieee80211_channel_to_frequency(target_channel, band->band); + notify_channel = ieee80211_get_channel(wiphy, freq); + + cfg80211_roamed(ndev, notify_channel, + (u8 *)brcmf_read_prof(cfg_priv, WL_PROF_BSSID), + conn_info->req_ie, conn_info->req_ie_len, + conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL); + WL_CONN("Report roaming result\n"); + + set_bit(WL_STATUS_CONNECTED, &cfg_priv->status); + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_bss_connect_done(struct brcmf_cfg80211_priv *cfg_priv, + struct net_device *ndev, const struct brcmf_event_msg *e, + bool completed) +{ + struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv); + s32 err = 0; + + WL_TRACE("Enter\n"); + + if (test_and_clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) { + if (completed) { + brcmf_get_assoc_ies(cfg_priv); + brcmf_update_prof(cfg_priv, NULL, &e->addr, + WL_PROF_BSSID); + brcmf_update_bss_info(cfg_priv); + } + cfg80211_connect_result(ndev, + (u8 *)brcmf_read_prof(cfg_priv, + WL_PROF_BSSID), + conn_info->req_ie, + conn_info->req_ie_len, + conn_info->resp_ie, + conn_info->resp_ie_len, + completed ? WLAN_STATUS_SUCCESS : + WLAN_STATUS_AUTH_TIMEOUT, + GFP_KERNEL); + if (completed) + set_bit(WL_STATUS_CONNECTED, &cfg_priv->status); + WL_CONN("Report connect result - connection %s\n", + completed ? "succeeded" : "failed"); + } + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_notify_connect_status(struct brcmf_cfg80211_priv *cfg_priv, + struct net_device *ndev, + const struct brcmf_event_msg *e, void *data) +{ + s32 err = 0; + + if (brcmf_is_linkup(cfg_priv, e)) { + WL_CONN("Linkup\n"); + if (brcmf_is_ibssmode(cfg_priv)) { + brcmf_update_prof(cfg_priv, NULL, (void *)e->addr, + WL_PROF_BSSID); + wl_inform_ibss(cfg_priv, ndev, e->addr); + cfg80211_ibss_joined(ndev, e->addr, GFP_KERNEL); + clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status); + set_bit(WL_STATUS_CONNECTED, &cfg_priv->status); + } else + brcmf_bss_connect_done(cfg_priv, ndev, e, true); + } else if (brcmf_is_linkdown(cfg_priv, e)) { + WL_CONN("Linkdown\n"); + if (brcmf_is_ibssmode(cfg_priv)) { + clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status); + if (test_and_clear_bit(WL_STATUS_CONNECTED, + &cfg_priv->status)) + brcmf_link_down(cfg_priv); + } else { + brcmf_bss_connect_done(cfg_priv, ndev, e, false); + if (test_and_clear_bit(WL_STATUS_CONNECTED, + &cfg_priv->status)) { + cfg80211_disconnected(ndev, 0, NULL, 0, + GFP_KERNEL); + brcmf_link_down(cfg_priv); + } + } + brcmf_init_prof(cfg_priv->profile); + } else if (brcmf_is_nonetwork(cfg_priv, e)) { + if (brcmf_is_ibssmode(cfg_priv)) + clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status); + else + brcmf_bss_connect_done(cfg_priv, ndev, e, false); + } + + return err; +} + +static s32 +brcmf_notify_roaming_status(struct brcmf_cfg80211_priv *cfg_priv, + struct net_device *ndev, + const struct brcmf_event_msg *e, void *data) +{ + s32 err = 0; + u32 event = be32_to_cpu(e->event_type); + u32 status = be32_to_cpu(e->status); + + if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) { + if (test_bit(WL_STATUS_CONNECTED, &cfg_priv->status)) + brcmf_bss_roaming_done(cfg_priv, ndev, e); + else + brcmf_bss_connect_done(cfg_priv, ndev, e, true); + } + + return err; +} + +static s32 +brcmf_notify_mic_status(struct brcmf_cfg80211_priv *cfg_priv, + struct net_device *ndev, + const struct brcmf_event_msg *e, void *data) +{ + u16 flags = be16_to_cpu(e->flags); + enum nl80211_key_type key_type; + + if (flags & BRCMF_EVENT_MSG_GROUP) + key_type = NL80211_KEYTYPE_GROUP; + else + key_type = NL80211_KEYTYPE_PAIRWISE; + + cfg80211_michael_mic_failure(ndev, (u8 *)&e->addr, key_type, -1, + NULL, GFP_KERNEL); + + return 0; +} + +static s32 +brcmf_notify_scan_status(struct brcmf_cfg80211_priv *cfg_priv, + struct net_device *ndev, + const struct brcmf_event_msg *e, void *data) +{ + struct brcmf_channel_info_le channel_inform_le; + struct brcmf_scan_results_le *bss_list_le; + u32 len = WL_SCAN_BUF_MAX; + s32 err = 0; + bool scan_abort = false; + u32 scan_channel; + + WL_TRACE("Enter\n"); + + if (cfg_priv->iscan_on && cfg_priv->iscan_kickstart) { + WL_TRACE("Exit\n"); + return brcmf_wakeup_iscan(cfg_to_iscan(cfg_priv)); + } + + if (!test_and_clear_bit(WL_STATUS_SCANNING, &cfg_priv->status)) { + WL_ERR("Scan complete while device not scanning\n"); + scan_abort = true; + err = -EINVAL; + goto scan_done_out; + } + + err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_CHANNEL, &channel_inform_le, + sizeof(channel_inform_le)); + if (err) { + WL_ERR("scan busy (%d)\n", err); + scan_abort = true; + goto scan_done_out; + } + scan_channel = le32_to_cpu(channel_inform_le.scan_channel); + if (scan_channel) + WL_CONN("channel_inform.scan_channel (%d)\n", scan_channel); + cfg_priv->bss_list = cfg_priv->scan_results; + bss_list_le = (struct brcmf_scan_results_le *) cfg_priv->bss_list; + + memset(cfg_priv->scan_results, 0, len); + bss_list_le->buflen = cpu_to_le32(len); + err = brcmf_exec_dcmd(ndev, BRCMF_C_SCAN_RESULTS, + cfg_priv->scan_results, len); + if (err) { + WL_ERR("%s Scan_results error (%d)\n", ndev->name, err); + err = -EINVAL; + scan_abort = true; + goto scan_done_out; + } + cfg_priv->scan_results->buflen = le32_to_cpu(bss_list_le->buflen); + cfg_priv->scan_results->version = le32_to_cpu(bss_list_le->version); + cfg_priv->scan_results->count = le32_to_cpu(bss_list_le->count); + + err = brcmf_inform_bss(cfg_priv); + if (err) { + scan_abort = true; + goto scan_done_out; + } + +scan_done_out: + if (cfg_priv->scan_request) { + WL_SCAN("calling cfg80211_scan_done\n"); + cfg80211_scan_done(cfg_priv->scan_request, scan_abort); + brcmf_set_mpc(ndev, 1); + cfg_priv->scan_request = NULL; + } + + WL_TRACE("Exit\n"); + + return err; +} + +static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf) +{ + conf->mode = (u32)-1; + conf->frag_threshold = (u32)-1; + conf->rts_threshold = (u32)-1; + conf->retry_short = (u32)-1; + conf->retry_long = (u32)-1; + conf->tx_power = -1; +} + +static void brcmf_init_eloop_handler(struct brcmf_cfg80211_event_loop *el) +{ + memset(el, 0, sizeof(*el)); + el->handler[BRCMF_E_SCAN_COMPLETE] = brcmf_notify_scan_status; + el->handler[BRCMF_E_LINK] = brcmf_notify_connect_status; + el->handler[BRCMF_E_ROAM] = brcmf_notify_roaming_status; + el->handler[BRCMF_E_MIC_ERROR] = brcmf_notify_mic_status; + el->handler[BRCMF_E_SET_SSID] = brcmf_notify_connect_status; +} + +static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_priv *cfg_priv) +{ + kfree(cfg_priv->scan_results); + cfg_priv->scan_results = NULL; + kfree(cfg_priv->bss_info); + cfg_priv->bss_info = NULL; + kfree(cfg_priv->conf); + cfg_priv->conf = NULL; + kfree(cfg_priv->profile); + cfg_priv->profile = NULL; + kfree(cfg_priv->scan_req_int); + cfg_priv->scan_req_int = NULL; + kfree(cfg_priv->dcmd_buf); + cfg_priv->dcmd_buf = NULL; + kfree(cfg_priv->extra_buf); + cfg_priv->extra_buf = NULL; + kfree(cfg_priv->iscan); + cfg_priv->iscan = NULL; + kfree(cfg_priv->pmk_list); + cfg_priv->pmk_list = NULL; +} + +static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_priv *cfg_priv) +{ + cfg_priv->scan_results = kzalloc(WL_SCAN_BUF_MAX, GFP_KERNEL); + if (!cfg_priv->scan_results) + goto init_priv_mem_out; + cfg_priv->conf = kzalloc(sizeof(*cfg_priv->conf), GFP_KERNEL); + if (!cfg_priv->conf) + goto init_priv_mem_out; + cfg_priv->profile = kzalloc(sizeof(*cfg_priv->profile), GFP_KERNEL); + if (!cfg_priv->profile) + goto init_priv_mem_out; + cfg_priv->bss_info = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); + if (!cfg_priv->bss_info) + goto init_priv_mem_out; + cfg_priv->scan_req_int = kzalloc(sizeof(*cfg_priv->scan_req_int), + GFP_KERNEL); + if (!cfg_priv->scan_req_int) + goto init_priv_mem_out; + cfg_priv->dcmd_buf = kzalloc(WL_DCMD_LEN_MAX, GFP_KERNEL); + if (!cfg_priv->dcmd_buf) + goto init_priv_mem_out; + cfg_priv->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); + if (!cfg_priv->extra_buf) + goto init_priv_mem_out; + cfg_priv->iscan = kzalloc(sizeof(*cfg_priv->iscan), GFP_KERNEL); + if (!cfg_priv->iscan) + goto init_priv_mem_out; + cfg_priv->pmk_list = kzalloc(sizeof(*cfg_priv->pmk_list), GFP_KERNEL); + if (!cfg_priv->pmk_list) + goto init_priv_mem_out; + + return 0; + +init_priv_mem_out: + brcmf_deinit_priv_mem(cfg_priv); + + return -ENOMEM; +} + +/* +* retrieve first queued event from head +*/ + +static struct brcmf_cfg80211_event_q *brcmf_deq_event( + struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_cfg80211_event_q *e = NULL; + + spin_lock_irq(&cfg_priv->evt_q_lock); + if (!list_empty(&cfg_priv->evt_q_list)) { + e = list_first_entry(&cfg_priv->evt_q_list, + struct brcmf_cfg80211_event_q, evt_q_list); + list_del(&e->evt_q_list); + } + spin_unlock_irq(&cfg_priv->evt_q_lock); + + return e; +} + +/* +** push event to tail of the queue +*/ + +static s32 +brcmf_enq_event(struct brcmf_cfg80211_priv *cfg_priv, u32 event, + const struct brcmf_event_msg *msg) +{ + struct brcmf_cfg80211_event_q *e; + s32 err = 0; + + e = kzalloc(sizeof(struct brcmf_cfg80211_event_q), GFP_KERNEL); + if (!e) + return -ENOMEM; + + e->etype = event; + memcpy(&e->emsg, msg, sizeof(struct brcmf_event_msg)); + + spin_lock_irq(&cfg_priv->evt_q_lock); + list_add_tail(&e->evt_q_list, &cfg_priv->evt_q_list); + spin_unlock_irq(&cfg_priv->evt_q_lock); + + return err; +} + +static void brcmf_put_event(struct brcmf_cfg80211_event_q *e) +{ + kfree(e); +} + +static void brcmf_cfg80211_event_handler(struct work_struct *work) +{ + struct brcmf_cfg80211_priv *cfg_priv = + container_of(work, struct brcmf_cfg80211_priv, + event_work); + struct brcmf_cfg80211_event_q *e; + + e = brcmf_deq_event(cfg_priv); + if (unlikely(!e)) { + WL_ERR("event queue empty...\n"); + return; + } + + do { + WL_INFO("event type (%d)\n", e->etype); + if (cfg_priv->el.handler[e->etype]) + cfg_priv->el.handler[e->etype](cfg_priv, + cfg_to_ndev(cfg_priv), + &e->emsg, e->edata); + else + WL_INFO("Unknown Event (%d): ignoring\n", e->etype); + brcmf_put_event(e); + } while ((e = brcmf_deq_event(cfg_priv))); + +} + +static void brcmf_init_eq(struct brcmf_cfg80211_priv *cfg_priv) +{ + spin_lock_init(&cfg_priv->evt_q_lock); + INIT_LIST_HEAD(&cfg_priv->evt_q_list); +} + +static void brcmf_flush_eq(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct brcmf_cfg80211_event_q *e; + + spin_lock_irq(&cfg_priv->evt_q_lock); + while (!list_empty(&cfg_priv->evt_q_list)) { + e = list_first_entry(&cfg_priv->evt_q_list, + struct brcmf_cfg80211_event_q, evt_q_list); + list_del(&e->evt_q_list); + kfree(e); + } + spin_unlock_irq(&cfg_priv->evt_q_lock); +} + +static s32 wl_init_priv(struct brcmf_cfg80211_priv *cfg_priv) +{ + s32 err = 0; + + cfg_priv->scan_request = NULL; + cfg_priv->pwr_save = true; + cfg_priv->iscan_on = true; /* iscan on & off switch. + we enable iscan per default */ + cfg_priv->roam_on = true; /* roam on & off switch. + we enable roam per default */ + + cfg_priv->iscan_kickstart = false; + cfg_priv->active_scan = true; /* we do active scan for + specific scan per default */ + cfg_priv->dongle_up = false; /* dongle is not up yet */ + brcmf_init_eq(cfg_priv); + err = brcmf_init_priv_mem(cfg_priv); + if (err) + return err; + INIT_WORK(&cfg_priv->event_work, brcmf_cfg80211_event_handler); + brcmf_init_eloop_handler(&cfg_priv->el); + mutex_init(&cfg_priv->usr_sync); + err = brcmf_init_iscan(cfg_priv); + if (err) + return err; + brcmf_init_conf(cfg_priv->conf); + brcmf_init_prof(cfg_priv->profile); + brcmf_link_down(cfg_priv); + + return err; +} + +static void wl_deinit_priv(struct brcmf_cfg80211_priv *cfg_priv) +{ + cancel_work_sync(&cfg_priv->event_work); + cfg_priv->dongle_up = false; /* dongle down */ + brcmf_flush_eq(cfg_priv); + brcmf_link_down(cfg_priv); + brcmf_term_iscan(cfg_priv); + brcmf_deinit_priv_mem(cfg_priv); +} + +struct brcmf_cfg80211_dev *brcmf_cfg80211_attach(struct net_device *ndev, + struct device *busdev, + void *data) +{ + struct wireless_dev *wdev; + struct brcmf_cfg80211_priv *cfg_priv; + struct brcmf_cfg80211_iface *ci; + struct brcmf_cfg80211_dev *cfg_dev; + s32 err = 0; + + if (!ndev) { + WL_ERR("ndev is invalid\n"); + return NULL; + } + cfg_dev = kzalloc(sizeof(struct brcmf_cfg80211_dev), GFP_KERNEL); + if (!cfg_dev) + return NULL; + + wdev = brcmf_alloc_wdev(sizeof(struct brcmf_cfg80211_iface), busdev); + if (IS_ERR(wdev)) { + kfree(cfg_dev); + return NULL; + } + + wdev->iftype = brcmf_mode_to_nl80211_iftype(WL_MODE_BSS); + cfg_priv = wdev_to_cfg(wdev); + cfg_priv->wdev = wdev; + cfg_priv->pub = data; + ci = (struct brcmf_cfg80211_iface *)&cfg_priv->ci; + ci->cfg_priv = cfg_priv; + ndev->ieee80211_ptr = wdev; + SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy)); + wdev->netdev = ndev; + err = wl_init_priv(cfg_priv); + if (err) { + WL_ERR("Failed to init iwm_priv (%d)\n", err); + goto cfg80211_attach_out; + } + brcmf_set_drvdata(cfg_dev, ci); + + return cfg_dev; + +cfg80211_attach_out: + brcmf_free_wdev(cfg_priv); + kfree(cfg_dev); + return NULL; +} + +void brcmf_cfg80211_detach(struct brcmf_cfg80211_dev *cfg_dev) +{ + struct brcmf_cfg80211_priv *cfg_priv; + + cfg_priv = brcmf_priv_get(cfg_dev); + + wl_deinit_priv(cfg_priv); + brcmf_free_wdev(cfg_priv); + brcmf_set_drvdata(cfg_dev, NULL); + kfree(cfg_dev); +} + +void +brcmf_cfg80211_event(struct net_device *ndev, + const struct brcmf_event_msg *e, void *data) +{ + u32 event_type = be32_to_cpu(e->event_type); + struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev); + + if (!brcmf_enq_event(cfg_priv, event_type, e)) + schedule_work(&cfg_priv->event_work); +} + +static s32 brcmf_dongle_mode(struct net_device *ndev, s32 iftype) +{ + s32 infra = 0; + s32 err = 0; + + switch (iftype) { + case NL80211_IFTYPE_MONITOR: + case NL80211_IFTYPE_WDS: + WL_ERR("type (%d) : currently we do not support this mode\n", + iftype); + err = -EINVAL; + return err; + case NL80211_IFTYPE_ADHOC: + infra = 0; + break; + case NL80211_IFTYPE_STATION: + infra = 1; + break; + default: + err = -EINVAL; + WL_ERR("invalid type (%d)\n", iftype); + return err; + } + err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_INFRA, &infra); + if (err) { + WL_ERR("WLC_SET_INFRA error (%d)\n", err); + return err; + } + + return 0; +} + +static s32 brcmf_dongle_eventmsg(struct net_device *ndev) +{ + /* Room for "event_msgs" + '\0' + bitvec */ + s8 iovbuf[BRCMF_EVENTING_MASK_LEN + 12]; + s8 eventmask[BRCMF_EVENTING_MASK_LEN]; + s32 err = 0; + + WL_TRACE("Enter\n"); + + /* Setup event_msgs */ + brcmf_c_mkiovar("event_msgs", eventmask, BRCMF_EVENTING_MASK_LEN, + iovbuf, sizeof(iovbuf)); + err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, iovbuf, sizeof(iovbuf)); + if (err) { + WL_ERR("Get event_msgs error (%d)\n", err); + goto dongle_eventmsg_out; + } + memcpy(eventmask, iovbuf, BRCMF_EVENTING_MASK_LEN); + + setbit(eventmask, BRCMF_E_SET_SSID); + setbit(eventmask, BRCMF_E_ROAM); + setbit(eventmask, BRCMF_E_PRUNE); + setbit(eventmask, BRCMF_E_AUTH); + setbit(eventmask, BRCMF_E_REASSOC); + setbit(eventmask, BRCMF_E_REASSOC_IND); + setbit(eventmask, BRCMF_E_DEAUTH_IND); + setbit(eventmask, BRCMF_E_DISASSOC_IND); + setbit(eventmask, BRCMF_E_DISASSOC); + setbit(eventmask, BRCMF_E_JOIN); + setbit(eventmask, BRCMF_E_ASSOC_IND); + setbit(eventmask, BRCMF_E_PSK_SUP); + setbit(eventmask, BRCMF_E_LINK); + setbit(eventmask, BRCMF_E_NDIS_LINK); + setbit(eventmask, BRCMF_E_MIC_ERROR); + setbit(eventmask, BRCMF_E_PMKID_CACHE); + setbit(eventmask, BRCMF_E_TXFAIL); + setbit(eventmask, BRCMF_E_JOIN_START); + setbit(eventmask, BRCMF_E_SCAN_COMPLETE); + + brcmf_c_mkiovar("event_msgs", eventmask, BRCMF_EVENTING_MASK_LEN, + iovbuf, sizeof(iovbuf)); + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, iovbuf, sizeof(iovbuf)); + if (err) { + WL_ERR("Set event_msgs error (%d)\n", err); + goto dongle_eventmsg_out; + } + +dongle_eventmsg_out: + WL_TRACE("Exit\n"); + return err; +} + +static s32 +brcmf_dongle_roam(struct net_device *ndev, u32 roamvar, u32 bcn_timeout) +{ + s8 iovbuf[32]; + s32 err = 0; + __le32 roamtrigger[2]; + __le32 roam_delta[2]; + __le32 bcn_to_le; + __le32 roamvar_le; + + /* + * Setup timeout if Beacons are lost and roam is + * off to report link down + */ + if (roamvar) { + bcn_to_le = cpu_to_le32(bcn_timeout); + brcmf_c_mkiovar("bcn_timeout", (char *)&bcn_to_le, + sizeof(bcn_to_le), iovbuf, sizeof(iovbuf)); + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, + iovbuf, sizeof(iovbuf)); + if (err) { + WL_ERR("bcn_timeout error (%d)\n", err); + goto dongle_rom_out; + } + } + + /* + * Enable/Disable built-in roaming to allow supplicant + * to take care of roaming + */ + WL_INFO("Internal Roaming = %s\n", roamvar ? "Off" : "On"); + roamvar_le = cpu_to_le32(roamvar); + brcmf_c_mkiovar("roam_off", (char *)&roamvar_le, + sizeof(roamvar_le), iovbuf, sizeof(iovbuf)); + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, iovbuf, sizeof(iovbuf)); + if (err) { + WL_ERR("roam_off error (%d)\n", err); + goto dongle_rom_out; + } + + roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL); + roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL); + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_ROAM_TRIGGER, + (void *)roamtrigger, sizeof(roamtrigger)); + if (err) { + WL_ERR("WLC_SET_ROAM_TRIGGER error (%d)\n", err); + goto dongle_rom_out; + } + + roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA); + roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL); + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_ROAM_DELTA, + (void *)roam_delta, sizeof(roam_delta)); + if (err) { + WL_ERR("WLC_SET_ROAM_DELTA error (%d)\n", err); + goto dongle_rom_out; + } + +dongle_rom_out: + return err; +} + +static s32 +brcmf_dongle_scantime(struct net_device *ndev, s32 scan_assoc_time, + s32 scan_unassoc_time, s32 scan_passive_time) +{ + s32 err = 0; + __le32 scan_assoc_tm_le = cpu_to_le32(scan_assoc_time); + __le32 scan_unassoc_tm_le = cpu_to_le32(scan_unassoc_time); + __le32 scan_passive_tm_le = cpu_to_le32(scan_passive_time); + + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SCAN_CHANNEL_TIME, + &scan_assoc_tm_le, sizeof(scan_assoc_tm_le)); + if (err) { + if (err == -EOPNOTSUPP) + WL_INFO("Scan assoc time is not supported\n"); + else + WL_ERR("Scan assoc time error (%d)\n", err); + goto dongle_scantime_out; + } + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SCAN_UNASSOC_TIME, + &scan_unassoc_tm_le, sizeof(scan_unassoc_tm_le)); + if (err) { + if (err == -EOPNOTSUPP) + WL_INFO("Scan unassoc time is not supported\n"); + else + WL_ERR("Scan unassoc time error (%d)\n", err); + goto dongle_scantime_out; + } + + err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SCAN_PASSIVE_TIME, + &scan_passive_tm_le, sizeof(scan_passive_tm_le)); + if (err) { + if (err == -EOPNOTSUPP) + WL_INFO("Scan passive time is not supported\n"); + else + WL_ERR("Scan passive time error (%d)\n", err); + goto dongle_scantime_out; + } + +dongle_scantime_out: + return err; +} + +static s32 wl_update_wiphybands(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct wiphy *wiphy; + s32 phy_list; + s8 phy; + s32 err = 0; + + err = brcmf_exec_dcmd(cfg_to_ndev(cfg_priv), BRCM_GET_PHYLIST, + &phy_list, sizeof(phy_list)); + if (err) { + WL_ERR("error (%d)\n", err); + return err; + } + + phy = ((char *)&phy_list)[1]; + WL_INFO("%c phy\n", phy); + if (phy == 'n' || phy == 'a') { + wiphy = cfg_to_wiphy(cfg_priv); + wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_n; + } + + return err; +} + +static s32 brcmf_dongle_probecap(struct brcmf_cfg80211_priv *cfg_priv) +{ + return wl_update_wiphybands(cfg_priv); +} + +static s32 brcmf_config_dongle(struct brcmf_cfg80211_priv *cfg_priv) +{ + struct net_device *ndev; + struct wireless_dev *wdev; + s32 power_mode; + s32 err = 0; + + if (cfg_priv->dongle_up) + return err; + + ndev = cfg_to_ndev(cfg_priv); + wdev = ndev->ieee80211_ptr; + + brcmf_dongle_scantime(ndev, WL_SCAN_CHANNEL_TIME, + WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME); + + err = brcmf_dongle_eventmsg(ndev); + if (err) + goto default_conf_out; + + power_mode = cfg_priv->pwr_save ? PM_FAST : PM_OFF; + err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_PM, &power_mode); + if (err) + goto default_conf_out; + WL_INFO("power save set to %s\n", + (power_mode ? "enabled" : "disabled")); + + err = brcmf_dongle_roam(ndev, (cfg_priv->roam_on ? 0 : 1), + WL_BEACON_TIMEOUT); + if (err) + goto default_conf_out; + err = brcmf_dongle_mode(ndev, wdev->iftype); + if (err && err != -EINPROGRESS) + goto default_conf_out; + err = brcmf_dongle_probecap(cfg_priv); + if (err) + goto default_conf_out; + + /* -EINPROGRESS: Call commit handler */ + +default_conf_out: + + cfg_priv->dongle_up = true; + + return err; + +} + +static int brcmf_debugfs_add_netdev_params(struct brcmf_cfg80211_priv *cfg_priv) +{ + char buf[10+IFNAMSIZ]; + struct dentry *fd; + s32 err = 0; + + sprintf(buf, "netdev:%s", cfg_to_ndev(cfg_priv)->name); + cfg_priv->debugfsdir = debugfs_create_dir(buf, + cfg_to_wiphy(cfg_priv)->debugfsdir); + + fd = debugfs_create_u16("beacon_int", S_IRUGO, cfg_priv->debugfsdir, + (u16 *)&cfg_priv->profile->beacon_interval); + if (!fd) { + err = -ENOMEM; + goto err_out; + } + + fd = debugfs_create_u8("dtim_period", S_IRUGO, cfg_priv->debugfsdir, + (u8 *)&cfg_priv->profile->dtim_period); + if (!fd) { + err = -ENOMEM; + goto err_out; + } + +err_out: + return err; +} + +static void brcmf_debugfs_remove_netdev(struct brcmf_cfg80211_priv *cfg_priv) +{ + debugfs_remove_recursive(cfg_priv->debugfsdir); + cfg_priv->debugfsdir = NULL; +} + +static s32 __brcmf_cfg80211_up(struct brcmf_cfg80211_priv *cfg_priv) +{ + s32 err = 0; + + set_bit(WL_STATUS_READY, &cfg_priv->status); + + brcmf_debugfs_add_netdev_params(cfg_priv); + + err = brcmf_config_dongle(cfg_priv); + if (err) + return err; + + brcmf_invoke_iscan(cfg_priv); + + return err; +} + +static s32 __brcmf_cfg80211_down(struct brcmf_cfg80211_priv *cfg_priv) +{ + /* + * While going down, if associated with AP disassociate + * from AP to save power + */ + if ((test_bit(WL_STATUS_CONNECTED, &cfg_priv->status) || + test_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) && + test_bit(WL_STATUS_READY, &cfg_priv->status)) { + WL_INFO("Disassociating from AP"); + brcmf_link_down(cfg_priv); + + /* Make sure WPA_Supplicant receives all the event + generated due to DISASSOC call to the fw to keep + the state fw and WPA_Supplicant state consistent + */ + brcmf_delay(500); + } + + set_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status); + brcmf_term_iscan(cfg_priv); + if (cfg_priv->scan_request) { + cfg80211_scan_done(cfg_priv->scan_request, true); + /* May need to perform this to cover rmmod */ + /* wl_set_mpc(cfg_to_ndev(wl), 1); */ + cfg_priv->scan_request = NULL; + } + clear_bit(WL_STATUS_READY, &cfg_priv->status); + clear_bit(WL_STATUS_SCANNING, &cfg_priv->status); + clear_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status); + + brcmf_debugfs_remove_netdev(cfg_priv); + + return 0; +} + +s32 brcmf_cfg80211_up(struct brcmf_cfg80211_dev *cfg_dev) +{ + struct brcmf_cfg80211_priv *cfg_priv; + s32 err = 0; + + cfg_priv = brcmf_priv_get(cfg_dev); + mutex_lock(&cfg_priv->usr_sync); + err = __brcmf_cfg80211_up(cfg_priv); + mutex_unlock(&cfg_priv->usr_sync); + + return err; +} + +s32 brcmf_cfg80211_down(struct brcmf_cfg80211_dev *cfg_dev) +{ + struct brcmf_cfg80211_priv *cfg_priv; + s32 err = 0; + + cfg_priv = brcmf_priv_get(cfg_dev); + mutex_lock(&cfg_priv->usr_sync); + err = __brcmf_cfg80211_down(cfg_priv); + mutex_unlock(&cfg_priv->usr_sync); + + return err; +} + +static __used s32 brcmf_add_ie(struct brcmf_cfg80211_priv *cfg_priv, + u8 t, u8 l, u8 *v) +{ + struct brcmf_cfg80211_ie *ie = &cfg_priv->ie; + s32 err = 0; + + if (ie->offset + l + 2 > WL_TLV_INFO_MAX) { + WL_ERR("ei crosses buffer boundary\n"); + return -ENOSPC; + } + ie->buf[ie->offset] = t; + ie->buf[ie->offset + 1] = l; + memcpy(&ie->buf[ie->offset + 2], v, l); + ie->offset += l + 2; + + return err; +} |