diff options
Diffstat (limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c')
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c | 151 |
1 files changed, 135 insertions, 16 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c index 1f5deea5a288..d2795dc17c46 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c @@ -17,6 +17,7 @@ #include "fwil_types.h" #include "p2p.h" #include "cfg80211.h" +#include "feature.h" /* parameters used for p2p escan */ #define P2PAPI_SCAN_NPROBES 1 @@ -59,12 +60,13 @@ #define P2P_AF_MIN_DWELL_TIME 100 #define P2P_AF_MED_DWELL_TIME 400 #define P2P_AF_LONG_DWELL_TIME 1000 -#define P2P_AF_TX_MAX_RETRY 1 +#define P2P_AF_TX_MAX_RETRY 5 #define P2P_AF_MAX_WAIT_TIME msecs_to_jiffies(2000) #define P2P_INVALID_CHANNEL -1 #define P2P_CHANNEL_SYNC_RETRY 5 #define P2P_AF_FRM_SCAN_MAX_WAIT msecs_to_jiffies(450) #define P2P_DEFAULT_SLEEP_TIME_VSDB 200 +#define P2P_AF_RETRY_DELAY_TIME 40 /* WiFi P2P Public Action Frame OUI Subtypes */ #define P2P_PAF_GON_REQ 0 /* Group Owner Negotiation Req */ @@ -92,6 +94,9 @@ #define P2PSD_ACTION_ID_GAS_CRESP 0x0d /* GAS Comback Response AF */ #define BRCMF_P2P_DISABLE_TIMEOUT msecs_to_jiffies(500) + +/* Mask for retry counter of custom dwell time */ +#define CUSTOM_RETRY_MASK 0xff000000 /** * struct brcmf_p2p_disc_st_le - set discovery state in firmware. * @@ -457,10 +462,21 @@ static int brcmf_p2p_set_firmware(struct brcmf_if *ifp, u8 *p2p_mac) */ static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p, u8 *dev_addr) { + struct brcmf_if *pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; bool random_addr = false; + bool local_admin = false; - if (!dev_addr || is_zero_ether_addr(dev_addr)) - random_addr = true; + if (!dev_addr || is_zero_ether_addr(dev_addr)) { + /* If the primary interface address is already locally + * administered, create a new random address. + */ + if (pri_ifp->mac_addr[0] & 0x02) { + random_addr = true; + } else { + dev_addr = pri_ifp->mac_addr; + local_admin = true; + } + } /* Generate the P2P Device Address obtaining a random ethernet * address with the locally administered bit set. @@ -470,13 +486,20 @@ static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p, u8 *dev_addr) else memcpy(p2p->dev_addr, dev_addr, ETH_ALEN); + if (local_admin) + p2p->dev_addr[0] |= 0x02; + /* Generate the P2P Interface Address. If the discovery and connection * BSSCFGs need to simultaneously co-exist, then this address must be * different from the P2P Device Address, but also locally administered. */ - memcpy(p2p->int_addr, p2p->dev_addr, ETH_ALEN); - p2p->int_addr[0] |= 0x02; - p2p->int_addr[4] ^= 0x80; + memcpy(p2p->conn_int_addr, p2p->dev_addr, ETH_ALEN); + p2p->conn_int_addr[0] |= 0x02; + p2p->conn_int_addr[4] ^= 0x80; + + memcpy(p2p->conn2_int_addr, p2p->dev_addr, ETH_ALEN); + p2p->conn2_int_addr[0] |= 0x02; + p2p->conn2_int_addr[4] ^= 0x90; } /** @@ -1245,6 +1268,30 @@ bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg, } /** + * brcmf_p2p_abort_action_frame() - abort action frame. + * + * @cfg: common configuration struct. + * + */ +static s32 brcmf_p2p_abort_action_frame(struct brcmf_cfg80211_info *cfg) +{ + struct brcmf_p2p_info *p2p = &cfg->p2p; + struct brcmf_cfg80211_vif *vif; + s32 err; + s32 int_val = 1; + + brcmf_dbg(TRACE, "Enter\n"); + + vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; + err = brcmf_fil_bsscfg_data_set(vif->ifp, "actframe_abort", &int_val, + sizeof(s32)); + if (err) + brcmf_err(" aborting action frame has failed (%d)\n", err); + + return err; +} + +/** * brcmf_p2p_stop_wait_next_action_frame() - finish scan if af tx complete. * * @cfg: common configuration struct. @@ -1255,6 +1302,7 @@ brcmf_p2p_stop_wait_next_action_frame(struct brcmf_cfg80211_info *cfg) { struct brcmf_p2p_info *p2p = &cfg->p2p; struct brcmf_if *ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; + s32 err; if (test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status) && (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status) || @@ -1263,8 +1311,13 @@ brcmf_p2p_stop_wait_next_action_frame(struct brcmf_cfg80211_info *cfg) /* if channel is not zero, "actfame" uses off channel scan. * So abort scan for off channel completion. */ - if (p2p->af_sent_channel) - brcmf_notify_escan_complete(cfg, ifp, true, true); + if (p2p->af_sent_channel) { + /* abort actframe using actframe_abort or abort scan */ + err = brcmf_p2p_abort_action_frame(cfg); + if (err) + brcmf_notify_escan_complete(cfg, ifp, true, + true); + } } else if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN, &p2p->status)) { brcmf_dbg(TRACE, "*** Wake UP ** abort listen for next af frame\n"); @@ -1491,6 +1544,7 @@ static s32 brcmf_p2p_tx_action_frame(struct brcmf_p2p_info *p2p, { struct brcmf_pub *drvr = p2p->cfg->pub; struct brcmf_cfg80211_vif *vif; + struct brcmf_p2p_action_frame *p2p_af; s32 err = 0; s32 timeout = 0; @@ -1500,7 +1554,13 @@ static s32 brcmf_p2p_tx_action_frame(struct brcmf_p2p_info *p2p, clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status); clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status); - vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; + /* check if it is a p2p_presence response */ + p2p_af = (struct brcmf_p2p_action_frame *)af_params->action_frame.data; + if (p2p_af->subtype == P2P_AF_PRESENCE_RSP) + vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif; + else + vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif; + err = brcmf_fil_bsscfg_data_set(vif->ifp, "actframe", af_params, sizeof(*af_params)); if (err) { @@ -1640,6 +1700,17 @@ static s32 brcmf_p2p_pub_af_tx(struct brcmf_cfg80211_info *cfg, return err; } +static bool brcmf_p2p_check_dwell_overflow(s32 requested_dwell, + unsigned long dwell_jiffies) +{ + if ((requested_dwell & CUSTOM_RETRY_MASK) && + (jiffies_to_msecs(jiffies - dwell_jiffies) > + (requested_dwell & ~CUSTOM_RETRY_MASK))) { + brcmf_err("Action frame TX retry time over dwell time!\n"); + return true; + } + return false; +} /** * brcmf_p2p_send_action_frame() - send action frame . * @@ -1664,6 +1735,10 @@ bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg, s32 tx_retry; s32 extra_listen_time; uint delta_ms; + unsigned long dwell_jiffies = 0; + bool dwell_overflow = false; + + s32 requested_dwell = af_params->dwell_time; action_frame = &af_params->action_frame; action_frame_len = le16_to_cpu(action_frame->len); @@ -1775,14 +1850,23 @@ bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg, /* update channel */ af_params->channel = cpu_to_le32(afx_hdl->peer_chan); } + dwell_jiffies = jiffies; + dwell_overflow = brcmf_p2p_check_dwell_overflow(requested_dwell, + dwell_jiffies); tx_retry = 0; while (!p2p->block_gon_req_tx && - (ack == false) && (tx_retry < P2P_AF_TX_MAX_RETRY)) { + (!ack) && (tx_retry < P2P_AF_TX_MAX_RETRY) && + !dwell_overflow) { + if (af_params->channel) + msleep(P2P_AF_RETRY_DELAY_TIME); + ack = !brcmf_p2p_tx_action_frame(p2p, af_params); tx_retry++; + dwell_overflow = brcmf_p2p_check_dwell_overflow(requested_dwell, + dwell_jiffies); } - if (ack == false) { + if (!ack) { bphy_err(drvr, "Failed to send Action Frame(retry %d)\n", tx_retry); clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status); @@ -1994,7 +2078,7 @@ int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg, if_request.type = cpu_to_le16((u16)if_type); if_request.chspec = cpu_to_le16(chanspec); - memcpy(if_request.addr, p2p->int_addr, sizeof(if_request.addr)); + memcpy(if_request.addr, p2p->conn_int_addr, sizeof(if_request.addr)); brcmf_cfg80211_arm_vif_event(cfg, vif); err = brcmf_fil_iovar_data_set(vif->ifp, "p2p_ifupd", &if_request, @@ -2149,6 +2233,27 @@ fail: return ERR_PTR(err); } +static int brcmf_p2p_get_conn_idx(struct brcmf_cfg80211_info *cfg) +{ + int i; + struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg)); + + if (!ifp) + return -ENODEV; + + for (i = P2PAPI_BSSCFG_CONNECTION; i < P2PAPI_BSSCFG_MAX; i++) { + if (!cfg->p2p.bss_idx[i].vif) { + if (i == P2PAPI_BSSCFG_CONNECTION2 && + !(brcmf_feat_is_enabled(ifp, BRCMF_FEAT_RSDB))) { + brcmf_err("Multi p2p not supported"); + return -EIO; + } + return i; + } + } + return -EIO; +} + /** * brcmf_p2p_add_vif() - create a new P2P virtual interface. * @@ -2168,7 +2273,9 @@ struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name, struct brcmf_pub *drvr = cfg->pub; struct brcmf_cfg80211_vif *vif; enum brcmf_fil_p2p_if_types iftype; - int err; + int err = 0; + int connidx; + u8 *p2p_intf_addr; if (brcmf_cfg80211_vif_event_armed(cfg)) return ERR_PTR(-EBUSY); @@ -2194,9 +2301,21 @@ struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name, return (struct wireless_dev *)vif; brcmf_cfg80211_arm_vif_event(cfg, vif); - err = brcmf_p2p_request_p2p_if(&cfg->p2p, ifp, cfg->p2p.int_addr, - iftype); + connidx = brcmf_p2p_get_conn_idx(cfg); + + if (connidx == P2PAPI_BSSCFG_CONNECTION) + p2p_intf_addr = cfg->p2p.conn_int_addr; + else if (connidx == P2PAPI_BSSCFG_CONNECTION2) + p2p_intf_addr = cfg->p2p.conn2_int_addr; + else + err = -EINVAL; + + if (!err) + err = brcmf_p2p_request_p2p_if(&cfg->p2p, ifp, + p2p_intf_addr, iftype); + if (err) { + brcmf_err("request p2p interface failed\n"); brcmf_cfg80211_arm_vif_event(cfg, NULL); goto fail; } @@ -2228,7 +2347,7 @@ struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name, goto fail; } - cfg->p2p.bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = vif; + cfg->p2p.bss_idx[connidx].vif = vif; /* Disable firmware roaming for P2P interface */ brcmf_fil_iovar_int_set(ifp, "roam_off", 1); if (iftype == BRCMF_FIL_P2P_IF_GO) { |