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brcmfmac: add peer-to-peer group discovery support

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First part for P2P support. It is a variation on the existing
scanning functionality and is used to discover peer-to-peer
group owners and/or peer-to-peer devices in listen state.

Tested with wpa_cli/wpa_supplicant v2.0-devel.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arend van Spriel 2013-02-08 15:53:36 +01:00 committed by John W. Linville
parent 0bc9a8cb24
commit 9f440b7bc7
6 changed files with 1078 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/wireless/brcm80211/brcmfmac/Makefile
View File

@ -26,6 +26,7 @@ brcmfmac-objs += \
wl_cfg80211.o \
fwil.o \
fweh.o \
p2p.o \
dhd_cdc.o \
dhd_common.o \
dhd_linux.o
@ -37,4 +38,4 @@ brcmfmac-$(CONFIG_BRCMFMAC_SDIO) += \
brcmfmac-$(CONFIG_BRCMFMAC_USB) += \
usb.o
brcmfmac-$(CONFIG_BRCMDBG) += \
dhd_dbg.o
dhd_dbg.o

1
drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
View File

@ -26,6 +26,7 @@
#include "dhd_bus.h"
#include "dhd_proto.h"
#include "dhd_dbg.h"
#include "p2p.h"
#include "wl_cfg80211.h"
#include "fwil.h"

734
drivers/net/wireless/brcm80211/brcmfmac/p2p.c Normal file
View File

@ -0,0 +1,734 @@
/*
* Copyright (c) 2012 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.
*/
#include <linux/slab.h>
#include <linux/netdevice.h>
#include <net/cfg80211.h>
#include <brcmu_wifi.h>
#include <brcmu_utils.h>
#include <defs.h>
#include <dhd.h>
#include <dhd_dbg.h>
#include "fwil.h"
#include "p2p.h"
#include "wl_cfg80211.h"
/* parameters used for p2p escan */
#define P2PAPI_SCAN_NPROBES 1
#define P2PAPI_SCAN_DWELL_TIME_MS 80
#define P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS 40
#define P2PAPI_SCAN_HOME_TIME_MS 60
#define P2PAPI_SCAN_NPROBS_TIME_MS 30
#define P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS 100
#define WL_SCAN_CONNECT_DWELL_TIME_MS 200
#define WL_SCAN_JOIN_PROBE_INTERVAL_MS 20
#define BRCMF_P2P_WILDCARD_SSID "DIRECT-"
#define BRCMF_P2P_WILDCARD_SSID_LEN (sizeof(BRCMF_P2P_WILDCARD_SSID) - 1)
#define SOCIAL_CHAN_1 1
#define SOCIAL_CHAN_2 6
#define SOCIAL_CHAN_3 11
#define SOCIAL_CHAN_CNT 3
#define AF_PEER_SEARCH_CNT 2
/**
* struct brcmf_p2p_disc_st_le - set discovery state in firmware.
*
* @state: requested discovery state (see enum brcmf_p2p_disc_state).
* @chspec: channel parameter for %WL_P2P_DISC_ST_LISTEN state.
* @dwell: dwell time in ms for %WL_P2P_DISC_ST_LISTEN state.
*/
struct brcmf_p2p_disc_st_le {
u8 state;
__le16 chspec;
__le16 dwell;
};
/**
* enum brcmf_p2p_disc_state - P2P discovery state values
*
* @WL_P2P_DISC_ST_SCAN: P2P discovery with wildcard SSID and P2P IE.
* @WL_P2P_DISC_ST_LISTEN: P2P discovery off-channel for specified time.
* @WL_P2P_DISC_ST_SEARCH: P2P discovery with P2P wildcard SSID and P2P IE.
*/
enum brcmf_p2p_disc_state {
WL_P2P_DISC_ST_SCAN,
WL_P2P_DISC_ST_LISTEN,
WL_P2P_DISC_ST_SEARCH
};
/**
* struct brcmf_p2p_scan_le - P2P specific scan request.
*
* @type: type of scan method requested (values: 'E' or 'S').
* @reserved: reserved (ignored).
* @eparams: parameters used for type 'E'.
* @sparams: parameters used for type 'S'.
*/
struct brcmf_p2p_scan_le {
u8 type;
u8 reserved[3];
union {
struct brcmf_escan_params_le eparams;
struct brcmf_scan_params_le sparams;
};
};
static struct brcmf_cfg80211_vif *p2p_discover_vif(struct brcmf_p2p_info *p2p)
{
return p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
}
/**
* brcmf_p2p_set_firmware() - prepare firmware for peer-to-peer operation.
*
* @p2p: P2P specific data.
*/
static int brcmf_p2p_set_firmware(struct brcmf_p2p_info *p2p)
{
struct net_device *ndev = cfg_to_ndev(p2p->cfg);
u8 null_eth_addr[] = { 0, 0, 0, 0, 0, 0 };
s32 ret = 0;
brcmf_fil_iovar_int_set(netdev_priv(ndev), "apsta", 1);
/* In case of COB type, firmware has default mac address
* After Initializing firmware, we have to set current mac address to
* firmware for P2P device address
*/
ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "p2p_da_override",
null_eth_addr, sizeof(null_eth_addr));
if (ret)
brcmf_err("failed to update device address ret %d\n", ret);
return ret;
}
/**
* brcmf_p2p_generate_bss_mac() - derive mac addresses for P2P.
*
* @p2p: P2P specific data.
*
* P2P needs mac addresses for P2P device and interface. These are
* derived from the primary net device, ie. the permanent ethernet
* address of the device.
*/
static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p)
{
struct net_device *ndev = cfg_to_ndev(p2p->cfg);
/* Generate the P2P Device Address. This consists of the device's
* primary MAC address with the locally administered bit set.
*/
memcpy(p2p->dev_addr, ndev->dev_addr, ETH_ALEN);
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[4] ^= 0x80;
}
/**
* brcmf_p2p_scan_is_p2p_request() - is cfg80211 scan request a P2P scan.
*
* @request: the scan request as received from cfg80211.
*
* returns true if one of the ssids in the request matches the
* P2P wildcard ssid; otherwise returns false.
*/
static bool brcmf_p2p_scan_is_p2p_request(struct cfg80211_scan_request *request)
{
struct cfg80211_ssid *ssids = request->ssids;
int i;
for (i = 0; i < request->n_ssids; i++) {
if (ssids[i].ssid_len != BRCMF_P2P_WILDCARD_SSID_LEN)
continue;
brcmf_dbg(INFO, "comparing ssid \"%s\"", ssids[i].ssid);
if (!memcmp(BRCMF_P2P_WILDCARD_SSID, ssids[i].ssid,
BRCMF_P2P_WILDCARD_SSID_LEN))
return true;
}
return false;
}
/**
* brcmf_p2p_set_discover_state - set discover state in firmware.
*
* @ifp: low-level interface object.
* @state: discover state to set.
* @chanspec: channel parameters (for state @WL_P2P_DISC_ST_LISTEN only).
* @listen_ms: duration to listen (for state @WL_P2P_DISC_ST_LISTEN only).
*/
static s32 brcmf_p2p_set_discover_state(struct brcmf_if *ifp, u8 state,
u16 chanspec, u16 listen_ms)
{
struct brcmf_p2p_disc_st_le discover_state;
s32 ret = 0;
brcmf_dbg(TRACE, "enter\n");
discover_state.state = state;
discover_state.chspec = cpu_to_le16(chanspec);
discover_state.dwell = cpu_to_le16(listen_ms);
ret = brcmf_fil_bsscfg_data_set(ifp, "p2p_state", &discover_state,
sizeof(discover_state));
return ret;
}
/**
* brcmf_p2p_discover_disable_search() - reset discover state.
*
* @p2p: P2P specific data.
*
* Reset the discover state to @WL_P2P_DISC_ST_SCAN. Returns 0 on success.
*/
static s32 brcmf_p2p_discover_disable_search(struct brcmf_p2p_info *p2p)
{
struct brcmf_cfg80211_vif *vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
struct brcmf_p2p_disc_st_le discovery_mode;
int ret;
/*
* vif presence indicates discovery is initialized.
*/
if (!vif)
return -ENODEV;
ret = brcmf_fil_bsscfg_data_get(vif->ifp, "p2p_state",
&discovery_mode,
sizeof(discovery_mode));
if (!ret && discovery_mode.state != WL_P2P_DISC_ST_SCAN)
ret = brcmf_p2p_set_discover_state(vif->ifp,
WL_P2P_DISC_ST_SCAN, 0, 0);
return ret;
}
/**
* brcmf_p2p_init_discovery() - enable discovery in the firmware.
*
* @p2p: P2P specific data.
*
* Configures the firmware to allow P2P peer discovery. Creates the
* virtual interface and consequently the P2P device for it.
*/
static s32 brcmf_p2p_init_discovery(struct brcmf_p2p_info *p2p)
{
struct net_device *ndev = cfg_to_ndev(p2p->cfg);
struct brcmf_cfg80211_vif *vif;
struct brcmf_if *ifp;
struct p2p_bss *bss_dev;
s32 index;
s32 ret;
brcmf_dbg(TRACE, "enter\n");
bss_dev = &p2p->bss_idx[P2PAPI_BSSCFG_DEVICE];
if (bss_dev->vif != NULL) {
brcmf_dbg(INFO, "do nothing, already initialized\n");
return 0;
}
/* Enable P2P Discovery in the firmware */
ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "p2p_disc", 1);
if (ret < 0) {
brcmf_err("set discover error\n");
return ret;
}
/* obtain bsscfg index for P2P discovery */
ret = brcmf_fil_iovar_int_get(netdev_priv(ndev), "p2p_dev", &index);
if (ret < 0) {
brcmf_err("retrieving discover bsscfg index failed\n");
return ret;
}
/*
* need brcmf_if for setting the discovery state.
*/
ifp = kzalloc(sizeof(*vif->ifp), GFP_KERNEL);
if (!ifp) {
brcmf_err("could not create discovery if\n");
return -ENOMEM;
}
/* set required fields */
ifp->drvr = p2p->cfg->pub;
ifp->ifidx = 0;
ifp->bssidx = index;
/* Set the initial discovery state to SCAN */
ret = brcmf_p2p_set_discover_state(ifp, WL_P2P_DISC_ST_SCAN, 0, 0);
if (ret != 0) {
brcmf_err("unable to set WL_P2P_DISC_ST_SCAN\n");
(void)brcmf_fil_iovar_int_set(netdev_priv(ndev), "p2p_disc", 0);
kfree(ifp);
return ret;
}
/* create a vif for it */
vif = brcmf_alloc_vif(p2p->cfg, NULL, NL80211_IFTYPE_P2P_DEVICE, false);
if (IS_ERR(vif)) {
brcmf_err("could not create discovery vif\n");
kfree(ifp);
return PTR_ERR(vif);
}
vif->ifp = ifp;
ifp->vif = vif;
bss_dev->vif = vif;
return 0;
}
/**
* brcmf_p2p_deinit_discovery() - disable P2P device discovery.
*
* @p2p: P2P specific data.
*
* Resets the discovery state and disables it in firmware. The virtual
* interface and P2P device are freed.
*/
static s32 brcmf_p2p_deinit_discovery(struct brcmf_p2p_info *p2p)
{
struct net_device *ndev = cfg_to_ndev(p2p->cfg);
struct brcmf_if *ifp;
struct p2p_bss *bss_dev;
brcmf_dbg(TRACE, "enter\n");
bss_dev = &p2p->bss_idx[P2PAPI_BSSCFG_DEVICE];
if (bss_dev->vif == NULL) {
brcmf_err("do nothing, not initialized\n");
return -EINVAL;
}
ifp = bss_dev->vif->ifp;
/* Set the discovery state to SCAN */
(void)brcmf_p2p_set_discover_state(ifp, WL_P2P_DISC_ST_SCAN, 0, 0);
/* Disable P2P discovery in the firmware */
(void)brcmf_fil_iovar_int_set(netdev_priv(ndev), "p2p_disc", 0);
/* remove discovery interface */
brcmf_free_vif(bss_dev->vif);
bss_dev->vif = NULL;
kfree(ifp);
return 0;
}
/**
* brcmf_p2p_enable_discovery() - initialize and configure discovery.
*
* @p2p: P2P specific data.
* @ie: buffer containing information elements.
* @ie_len: length of @ie buffer.
*
* Initializes the discovery device and configure the virtual interface.
*/
static int brcmf_p2p_enable_discovery(struct brcmf_p2p_info *p2p,
const u8 *ie, u32 ie_len)
{
struct brcmf_cfg80211_vif *vif;
s32 ret = 0;
brcmf_dbg(TRACE, "enter\n");
vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
if (vif) {
brcmf_dbg(INFO,
"DISCOVERY init already done, just process IE\n");
goto set_ie;
}
ret = brcmf_p2p_init_discovery(p2p);
if (ret < 0) {
brcmf_err("init discovery error %d\n", ret);
goto exit;
}
vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
/*
* Set wsec to any non-zero value in the discovery bsscfg
* to ensure our P2P probe responses have the privacy bit
* set in the 802.11 WPA IE. Some peer devices may not
* initiate WPS with us if this bit is not set.
*/
ret = brcmf_fil_bsscfg_int_set(vif->ifp, "wsec", AES_ENABLED);
if (ret < 0)
brcmf_err("wsec error %d\n", ret);
set_ie:
if (ie_len) {
ret = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBREQ_FLAG,
ie, ie_len);
if (ret < 0) {
brcmf_err("set probreq ie occurs error %d\n", ret);
goto exit;
}
}
exit:
return ret;
}
/*
* brcmf_p2p_escan() - initiate a P2P scan.
*
* @p2p: P2P specific data.
* @num_chans: number of channels to scan.
* @chanspecs: channel parameters for @num_chans channels.
* @search_state: P2P discover state to use.
* @action: scan action to pass to firmware.
* @bss_type: type of P2P bss.
*/
static s32 brcmf_p2p_escan(struct brcmf_p2p_info *p2p, u32 num_chans,
u16 chanspecs[], s32 search_state, u16 action,
enum p2p_bss_type bss_type)
{
s32 ret = 0;
s32 memsize = offsetof(struct brcmf_p2p_scan_le,
eparams.params_le.channel_list);
s32 nprobes;
s32 active;
u32 i;
u8 *memblk;
struct brcmf_cfg80211_vif *vif;
struct brcmf_p2p_scan_le *p2p_params;
struct brcmf_scan_params_le *sparams;
struct brcmf_ssid ssid;
/* add padding if uneven */
if (num_chans % 2)
memsize += sizeof(__le16);
memsize += num_chans * sizeof(__le16);
memblk = kzalloc(memsize, GFP_KERNEL);
if (!memblk)
return -ENOMEM;
vif = p2p->bss_idx[bss_type].vif;
if (vif == NULL) {
brcmf_err("no vif for bss type %d\n", bss_type);
ret = -EINVAL;
goto exit;
}
switch (search_state) {
case WL_P2P_DISC_ST_SEARCH:
/*
* If we in SEARCH STATE, we don't need to set SSID explictly
* because dongle use P2P WILDCARD internally by default
*/
/* use null ssid */
ssid.SSID_len = 0;
memset(ssid.SSID, 0, sizeof(ssid.SSID));
break;
case WL_P2P_DISC_ST_SCAN:
/*
* wpa_supplicant has p2p_find command with type social or
* progressive. For progressive, we need to set the ssid to
* P2P WILDCARD because we just do broadcast scan unless
* setting SSID.
*/
ssid.SSID_len = BRCMF_P2P_WILDCARD_SSID_LEN;
memcpy(ssid.SSID, BRCMF_P2P_WILDCARD_SSID, ssid.SSID_len);
break;
default:
brcmf_err(" invalid search state %d\n", search_state);
ret = -EINVAL;
goto exit;
}
brcmf_p2p_set_discover_state(vif->ifp, search_state, 0, 0);
/*
* set p2p scan parameters.
*/
p2p_params = (struct brcmf_p2p_scan_le *)memblk;
p2p_params->type = 'E';
/* determine the scan engine parameters */
sparams = &p2p_params->eparams.params_le;
sparams->bss_type = DOT11_BSSTYPE_ANY;
if (p2p->cfg->active_scan)
sparams->scan_type = 0;
else
sparams->scan_type = 1;
memset(&sparams->bssid, 0xFF, ETH_ALEN);
if (ssid.SSID_len)
memcpy(sparams->ssid_le.SSID, ssid.SSID, ssid.SSID_len);
sparams->ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len);
sparams->home_time = cpu_to_le32(P2PAPI_SCAN_HOME_TIME_MS);
/*
* SOCIAL_CHAN_CNT + 1 takes care of the Progressive scan
* supported by the supplicant.
*/
if (num_chans == SOCIAL_CHAN_CNT || num_chans == (SOCIAL_CHAN_CNT + 1))
active = P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS;
else if (num_chans == AF_PEER_SEARCH_CNT)
active = P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS;
else if (wl_get_vif_state_all(p2p->cfg, BRCMF_VIF_STATUS_CONNECTED))
active = -1;
else
active = P2PAPI_SCAN_DWELL_TIME_MS;
/* Override scan params to find a peer for a connection */
if (num_chans == 1) {
active = WL_SCAN_CONNECT_DWELL_TIME_MS;
/* XXX WAR to sync with presence period of VSDB GO.
* send probe request more frequently
*/
nprobes = active / WL_SCAN_JOIN_PROBE_INTERVAL_MS;
} else {
nprobes = active / P2PAPI_SCAN_NPROBS_TIME_MS;
}
if (nprobes <= 0)
nprobes = 1;
brcmf_dbg(INFO, "nprobes # %d, active_time %d\n", nprobes, active);
sparams->active_time = cpu_to_le32(active);
sparams->nprobes = cpu_to_le32(nprobes);
sparams->passive_time = cpu_to_le32(-1);
sparams->channel_num = cpu_to_le32(num_chans &
BRCMF_SCAN_PARAMS_COUNT_MASK);
for (i = 0; i < num_chans; i++)
sparams->channel_list[i] = cpu_to_le16(chanspecs[i]);
/* set the escan specific parameters */
p2p_params->eparams.version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
p2p_params->eparams.action = cpu_to_le16(action);
p2p_params->eparams.sync_id = cpu_to_le16(0x1234);
/* perform p2p scan on primary device */
ret = brcmf_fil_bsscfg_data_set(vif->ifp, "p2p_scan", memblk, memsize);
if (!ret)
set_bit(BRCMF_SCAN_STATUS_BUSY, &p2p->cfg->scan_status);
exit:
kfree(memblk);
return ret;
}
/**
* brcmf_p2p_run_escan() - escan callback for peer-to-peer.
*
* @cfg: driver private data for cfg80211 interface.
* @ndev: net device for which scan is requested.
* @request: scan request from cfg80211.
* @action: scan action.
*
* Determines the P2P discovery state based to scan request parameters and
* validates the channels in the request.
*/
static s32 brcmf_p2p_run_escan(struct brcmf_cfg80211_info *cfg,
struct net_device *ndev,
struct cfg80211_scan_request *request,
u16 action)
{
struct brcmf_p2p_info *p2p = &cfg->p2p;
s32 err = 0;
s32 search_state = WL_P2P_DISC_ST_SCAN;
struct brcmf_cfg80211_vif *vif;
struct net_device *dev = NULL;
int i, num_nodfs = 0;
u16 *chanspecs;
brcmf_dbg(TRACE, "enter\n");
if (!request) {
err = -EINVAL;
goto exit;
}
if (request->n_channels) {
chanspecs = kcalloc(request->n_channels, sizeof(*chanspecs),
GFP_KERNEL);
if (!chanspecs) {
err = -ENOMEM;
goto exit;
}
vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif;
if (vif)
dev = vif->wdev.netdev;
if (request->n_channels == 3 &&
request->channels[0]->hw_value == SOCIAL_CHAN_1 &&
request->channels[1]->hw_value == SOCIAL_CHAN_2 &&
request->channels[2]->hw_value == SOCIAL_CHAN_3) {
/* SOCIAL CHANNELS 1, 6, 11 */
search_state = WL_P2P_DISC_ST_SEARCH;
brcmf_dbg(INFO, "P2P SEARCH PHASE START\n");
} else if (dev != NULL && vif->mode == WL_MODE_AP) {
/* If you are already a GO, then do SEARCH only */
brcmf_dbg(INFO, "Already a GO. Do SEARCH Only\n");
search_state = WL_P2P_DISC_ST_SEARCH;
} else {
brcmf_dbg(INFO, "P2P SCAN STATE START\n");
}
/*
* no P2P scanning on passive or DFS channels.
*/
for (i = 0; i < request->n_channels; i++) {
struct ieee80211_channel *chan = request->channels[i];
if (chan->flags & (IEEE80211_CHAN_RADAR |
IEEE80211_CHAN_PASSIVE_SCAN))
continue;
chanspecs[i] = channel_to_chanspec(chan);
brcmf_dbg(INFO, "%d: chan=%d, channel spec=%x\n",
num_nodfs, chan->hw_value, chanspecs[i]);
num_nodfs++;
}
err = brcmf_p2p_escan(p2p, num_nodfs, chanspecs, search_state,
action, P2PAPI_BSSCFG_DEVICE);
}
exit:
if (err)
brcmf_err("error (%d)\n", err);
return err;
}
/**
* brcmf_p2p_scan_prep() - prepare scan based on request.
*
* @wiphy: wiphy device.
* @request: scan request from cfg80211.
*
* Prepare the scan appropriately for type of scan requested. Overrides the
* escan .run() callback for peer-to-peer scanning.
*/
int brcmf_p2p_scan_prep(struct wiphy *wiphy,
struct cfg80211_scan_request *request)
{
struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
struct brcmf_p2p_info *p2p = &cfg->p2p;
int err = 0;
if (brcmf_p2p_scan_is_p2p_request(request)) {
/* find my listen channel */
err = cfg80211_get_p2p_attr(request->ie, request->ie_len,
IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
&p2p->listen_channel, 1);
if (err < 0)
return err;
clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n");
err = brcmf_p2p_enable_discovery(p2p, request->ie,
request->ie_len);
/*
* override .run_escan() callback.
*/
cfg->escan_info.run = brcmf_p2p_run_escan;
} else {
/*
* legacy scan trigger
* So, we have to disable p2p discovery if p2p discovery is on
*/
(void)brcmf_p2p_discover_disable_search(p2p);
/*
* clear p2p vendor ies for probe request set by
* previous p2p related scan(s).
*/
if (p2p_discover_vif(p2p))
err = brcmf_vif_set_mgmt_ie(p2p_discover_vif(p2p),
BRCMF_VNDR_IE_PRBREQ_FLAG,
request->ie,
request->ie_len);
}
return err;
}
/**
* brcmf_p2p_attach() - attach for P2P.
*
* @cfg: driver private data for cfg80211 interface.
*/
void brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg)
{
struct brcmf_p2p_info *p2p;
p2p = &cfg->p2p;
p2p->cfg = cfg;
brcmf_p2p_set_firmware(p2p);
brcmf_p2p_generate_bss_mac(p2p);
}
/**
* brcmf_p2p_detach() - detach P2P.
*
* @p2p: P2P specific data.
*/
void brcmf_p2p_detach(struct brcmf_p2p_info *p2p)
{
brcmf_p2p_deinit_discovery(p2p);
/* just set it all to zero */
memset(p2p, 0, sizeof(*p2p));
}
/**
* brcmf_p2p_add_vif() - create a new P2P virtual interface.
*
* @wiphy: wiphy device of new interface.
* @name: name of the new interface.
* @type: nl80211 interface type.
* @flags: TBD
* @params: TBD
*
* TODO: not yet supported.
*/
struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
brcmf_err("enter - not supported yet\n");
brcmf_dbg(INFO, "adding vif \"%s\" (type=%d)\n", name, type);
return ERR_PTR(-EOPNOTSUPP);
}
/**
* brcmf_p2p_del_vif() - delete a P2P virtual interface.
*
* @wiphy: wiphy device of interface.
* @wdev: wireless device of interface.
*
* TODO: not yet supported.
*/
int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev)
{
struct brcmf_cfg80211_vif *vif;
vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
if (wdev->netdev)
brcmf_dbg(INFO, "deleting vif \"%s\"\n", wdev->netdev->name);
else
brcmf_dbg(INFO, "deleting vif \"wdev-%u\"\n",
wdev->identifier);
brcmf_err("enter - not supported yet\n");
return -EOPNOTSUPP;
}

114
drivers/net/wireless/brcm80211/brcmfmac/p2p.h Normal file
View File

@ -0,0 +1,114 @@
/*
* Copyright (c) 2012 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.
*/
#ifndef WL_CFGP2P_H_
#define WL_CFGP2P_H_
#include <net/cfg80211.h>
struct brcmf_cfg80211_info;
/* vendor ies max buffer length for probe response or beacon */
#define VNDR_IES_MAX_BUF_LEN 1400
/* normal vendor ies buffer length */
#define VNDR_IES_BUF_LEN 512
/* Structure to hold all saved P2P and WPS IEs for a BSSCFG */
/**
* enum p2p_bss_type - different type of BSS configurations.
*
* @P2PAPI_BSSCFG_PRIMARY: maps to driver's primary bsscfg.
* @P2PAPI_BSSCFG_DEVICE: maps to driver's P2P device discovery bsscfg.
* @P2PAPI_BSSCFG_CONNECTION: maps to driver's P2P connection bsscfg.
* @P2PAPI_BSSCFG_MAX: used for range checking.
*/
enum p2p_bss_type {
P2PAPI_BSSCFG_PRIMARY, /* maps to driver's primary bsscfg */
P2PAPI_BSSCFG_DEVICE, /* maps to driver's P2P device discovery bsscfg */
P2PAPI_BSSCFG_CONNECTION, /* maps to driver's P2P connection bsscfg */
P2PAPI_BSSCFG_MAX
};
/**
* struct p2p_bss - peer-to-peer bss related information.
*
* @vif: virtual interface of this P2P bss.
* @private_data: TBD
*/
struct p2p_bss {
struct brcmf_cfg80211_vif *vif;
void *private_data;
};
/**
* enum brcmf_p2p_status - P2P specific dongle status.
*
* @BRCMF_P2P_STATUS_IF_ADD: peer-to-peer vif add sent to dongle.
* @BRCMF_P2P_STATUS_IF_DEL: NOT-USED?
* @BRCMF_P2P_STATUS_IF_DELETING: peer-to-peer vif delete sent to dongle.
* @BRCMF_P2P_STATUS_IF_CHANGING: peer-to-peer vif change sent to dongle.
* @BRCMF_P2P_STATUS_IF_CHANGED: peer-to-peer vif change completed on dongle.
* @BRCMF_P2P_STATUS_LISTEN_EXPIRED: listen duration expired.
* @BRCMF_P2P_STATUS_ACTION_TX_COMPLETED: action frame tx completed.
* @BRCMF_P2P_STATUS_ACTION_TX_NOACK: action frame tx not acked.
* @BRCMF_P2P_STATUS_GO_NEG_PHASE: P2P GO negotiation ongoing.
*/
enum brcmf_p2p_status {
BRCMF_P2P_STATUS_IF_ADD = 0,
BRCMF_P2P_STATUS_IF_DEL,
BRCMF_P2P_STATUS_IF_DELETING,
BRCMF_P2P_STATUS_IF_CHANGING,
BRCMF_P2P_STATUS_IF_CHANGED,
BRCMF_P2P_STATUS_LISTEN_EXPIRED,
BRCMF_P2P_STATUS_ACTION_TX_COMPLETED,
BRCMF_P2P_STATUS_ACTION_TX_NOACK,
BRCMF_P2P_STATUS_GO_NEG_PHASE
};
/**
* struct brcmf_p2p_info - p2p specific driver information.
*
* @cfg: driver private data for cfg80211 interface.
* @status: status of P2P (see enum brcmf_p2p_status).
* @dev_addr: P2P device address.
* @int_addr: P2P interface address.
* @bss_idx: informate for P2P bss types.
* @listen_timer: timer for @WL_P2P_DISC_ST_LISTEN discover state.
* @ssid: ssid for P2P GO.
* @listen_channel: channel for @WL_P2P_DISC_ST_LISTEN discover state.
*/
struct brcmf_p2p_info {
struct brcmf_cfg80211_info *cfg;
unsigned long status;
u8 dev_addr[ETH_ALEN];
u8 int_addr[ETH_ALEN];
struct p2p_bss bss_idx[P2PAPI_BSSCFG_MAX];
struct timer_list listen_timer;
struct brcmf_ssid ssid;
u8 listen_channel;
};
void brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg);
void brcmf_p2p_detach(struct brcmf_p2p_info *p2p);
struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params);
int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev);
int brcmf_p2p_start_device(struct wiphy *wiphy, struct wireless_dev *wdev);
void brcmf_p2p_stop_device(struct wiphy *wiphy, struct wireless_dev *wdev);
int brcmf_p2p_scan_prep(struct wiphy *wiphy,
struct cfg80211_scan_request *request);
#endif /* WL_CFGP2P_H_ */

199
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
View File

@ -26,6 +26,7 @@
#include <brcmu_wifi.h>
#include "dhd.h"
#include "dhd_dbg.h"
#include "p2p.h"
#include "wl_cfg80211.h"
#include "fwil.h"
@ -41,12 +42,8 @@
#define BRCMF_PNO_SCAN_COMPLETE 1
#define BRCMF_PNO_SCAN_INCOMPLETE 0
#define BRCMF_IFACE_MAX_CNT 2
#define BRCMF_IFACE_MAX_CNT 3
#define TLV_LEN_OFF 1 /* length offset */
#define TLV_HDR_LEN 2 /* header length */
#define TLV_BODY_OFF 2 /* body offset */
#define TLV_OUI_LEN 3 /* oui id length */
#define WPA_OUI "\x00\x50\xF2" /* WPA OUI */
#define WPA_OUI_TYPE 1
#define RSN_OUI "\x00\x0F\xAC" /* RSN OUI */
@ -76,9 +73,7 @@
#define VNDR_IE_PKTFLAG_OFFSET 8
#define VNDR_IE_VSIE_OFFSET 12
#define VNDR_IE_HDR_SIZE 12
#define VNDR_IE_BEACON_FLAG 0x1
#define VNDR_IE_PRBRSP_FLAG 0x2
#define MAX_VNDR_IE_NUMBER 5
#define VNDR_IE_PARSE_LIMIT 5
#define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */
#define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */
@ -271,13 +266,6 @@ static const u32 __wl_cipher_suites[] = {
WLAN_CIPHER_SUITE_AES_CMAC,
};
/* tag_ID/length/value_buffer tuple */
struct brcmf_tlv {
u8 id;
u8 len;
u8 data[1];
};
/* Vendor specific ie. id = 221, oui and type defines exact ie */
struct brcmf_vs_tlv {
u8 id;
@ -294,7 +282,7 @@ struct parsed_vndr_ie_info {
struct parsed_vndr_ies {
u32 count;
struct parsed_vndr_ie_info ie_info[MAX_VNDR_IE_NUMBER];
struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
};
/* Quarter dBm units to mW
@ -381,7 +369,7 @@ static u8 brcmf_mw_to_qdbm(u16 mw)
return qdbm;
}
static u16 channel_to_chanspec(struct ieee80211_channel *ch)
u16 channel_to_chanspec(struct ieee80211_channel *ch)
{
u16 chanspec;
@ -431,6 +419,55 @@ send_key_to_dongle(struct net_device *ndev, struct brcmf_wsec_key *key)
return err;
}
static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
const char *name,
enum nl80211_iftype type,
u32 *flags,
struct vif_params *params)
{
brcmf_dbg(TRACE, "enter: %s type %d\n", name, type);
switch (type) {
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_MESH_POINT:
return ERR_PTR(-EOPNOTSUPP);
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
return brcmf_p2p_add_vif(wiphy, name, type, flags, params);
case NL80211_IFTYPE_UNSPECIFIED:
case NL80211_IFTYPE_P2P_DEVICE:
default:
return ERR_PTR(-EINVAL);
}
}
static
int brcmf_cfg80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
{
switch (wdev->iftype) {
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_MESH_POINT:
return -EOPNOTSUPP;
case NL80211_IFTYPE_P2P_CLIENT:
case NL80211_IFTYPE_P2P_GO:
return brcmf_p2p_del_vif(wiphy, wdev);
case NL80211_IFTYPE_UNSPECIFIED:
case NL80211_IFTYPE_P2P_DEVICE:
default:
return -EINVAL;
}
return -EOPNOTSUPP;
}
static s32
brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
enum nl80211_iftype type, u32 *flags,
@ -696,11 +733,12 @@ brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
s32 err;
u32 passive_scan;
struct brcmf_scan_results *results;
struct escan_info *escan = &cfg->escan_info;
brcmf_dbg(SCAN, "Enter\n");
cfg->escan_info.ndev = ndev;
cfg->escan_info.wiphy = wiphy;
cfg->escan_info.escan_state = WL_ESCAN_STATE_SCANNING;
escan->ndev = ndev;
escan->wiphy = wiphy;
escan->escan_state = WL_ESCAN_STATE_SCANNING;
passive_scan = cfg->active_scan ? 0 : 1;
err = brcmf_fil_cmd_int_set(netdev_priv(ndev), BRCMF_C_SET_PASSIVE_SCAN,
passive_scan);
@ -714,7 +752,7 @@ brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
results->count = 0;
results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
err = brcmf_run_escan(cfg, ndev, request, WL_ESCAN_ACTION_START);
err = escan->run(cfg, ndev, request, WL_ESCAN_ACTION_START);
if (err)
brcmf_set_mpc(ndev, 1);
return err;
@ -769,6 +807,11 @@ brcmf_cfg80211_escan(struct wiphy *wiphy, struct net_device *ndev,
cfg->scan_request = request;
set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
if (escan_req) {
cfg->escan_info.run = brcmf_run_escan;
err = brcmf_p2p_scan_prep(wiphy, request);
if (err)
goto scan_out;
err = brcmf_do_escan(cfg, wiphy, ndev, request);
if (err)
goto scan_out;
@ -2186,7 +2229,7 @@ static bool brcmf_is_ibssmode(struct brcmf_cfg80211_vif *vif)
* 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 *brcmf_parse_tlvs(void *buf, int buflen, uint key)
{
struct brcmf_tlv *elt;
int totlen;
@ -3227,7 +3270,7 @@ brcmf_parse_vndr_ies(const u8 *vndr_ie_buf, u32 vndr_ie_len,
parsed_info->vndrie.oui[2],
parsed_info->vndrie.oui_type);
if (vndr_ies->count >= MAX_VNDR_IE_NUMBER)
if (vndr_ies->count >= VNDR_IE_PARSE_LIMIT)
break;
next:
remaining_len -= (ie->len + TLV_HDR_LEN);
@ -3261,7 +3304,6 @@ brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
return ie_len + VNDR_IE_HDR_SIZE;
}
static
s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
const u8 *vndr_ie_buf, u32 vndr_ie_len)
{
@ -3295,12 +3337,12 @@ s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
curr_ie_buf = iovar_ie_buf;
if (ifp->vif->mode == WL_MODE_AP) {
switch (pktflag) {
case VNDR_IE_PRBRSP_FLAG:
case BRCMF_VNDR_IE_PRBRSP_FLAG:
mgmt_ie_buf = saved_ie->probe_res_ie;
mgmt_ie_len = &saved_ie->probe_res_ie_len;
mgmt_ie_buf_len = sizeof(saved_ie->probe_res_ie);
break;
case VNDR_IE_BEACON_FLAG:
case BRCMF_VNDR_IE_BEACON_FLAG:
mgmt_ie_buf = saved_ie->beacon_ie;
mgmt_ie_len = &saved_ie->beacon_ie_len;
mgmt_ie_buf_len = sizeof(saved_ie->beacon_ie);
@ -3311,9 +3353,17 @@ s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
goto exit;
}
} else {
err = -EPERM;
brcmf_err("not suitable type\n");
goto exit;
switch (pktflag) {
case BRCMF_VNDR_IE_PRBREQ_FLAG:
mgmt_ie_buf = saved_ie->probe_req_ie;
mgmt_ie_len = &saved_ie->probe_req_ie_len;
mgmt_ie_buf_len = sizeof(saved_ie->probe_req_ie);
break;
default:
err = -EPERM;
brcmf_err("not suitable type\n");
goto exit;
}
}
if (vndr_ie_len > mgmt_ie_buf_len) {
@ -3508,7 +3558,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
}
/* Set Beacon IEs to FW */
err = brcmf_vif_set_mgmt_ie(ndev_to_vif(ndev),
VNDR_IE_BEACON_FLAG,
BRCMF_VNDR_IE_BEACON_FLAG,
settings->beacon.tail,
settings->beacon.tail_len);
if (err)
@ -3518,7 +3568,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
/* Set Probe Response IEs to FW */
err = brcmf_vif_set_mgmt_ie(ndev_to_vif(ndev),
VNDR_IE_PRBRSP_FLAG,
BRCMF_VNDR_IE_PRBRSP_FLAG,
settings->beacon.proberesp_ies,
settings->beacon.proberesp_ies_len);
if (err)
@ -3625,6 +3675,8 @@ brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
}
static struct cfg80211_ops wl_cfg80211_ops = {
.add_virtual_intf = brcmf_cfg80211_add_iface,
.del_virtual_intf = brcmf_cfg80211_del_iface,
.change_virtual_intf = brcmf_cfg80211_change_iface,
.scan = brcmf_cfg80211_scan,
.set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
@ -3656,20 +3708,30 @@ static struct cfg80211_ops wl_cfg80211_ops = {
#endif
};
static s32 brcmf_mode_to_nl80211_iftype(s32 mode)
static s32 brcmf_nl80211_iftype_to_mode(enum nl80211_iftype type)
{
s32 err = 0;
switch (mode) {
case WL_MODE_BSS:
return NL80211_IFTYPE_STATION;
case WL_MODE_IBSS:
return NL80211_IFTYPE_ADHOC;
switch (type) {
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_MESH_POINT:
return -ENOTSUPP;
case NL80211_IFTYPE_ADHOC:
return WL_MODE_IBSS;
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_P2P_CLIENT:
return WL_MODE_BSS;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_P2P_GO:
return WL_MODE_AP;
case NL80211_IFTYPE_P2P_DEVICE:
return WL_MODE_P2P;
case NL80211_IFTYPE_UNSPECIFIED:
default:
return NL80211_IFTYPE_UNSPECIFIED;
break;
}
return err;
return -EINVAL;
}
static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
@ -3681,6 +3743,28 @@ static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
}
static const struct ieee80211_iface_limit brcmf_iface_limits[] = {
{
.max = 1,
.types = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC) |
BIT(NL80211_IFTYPE_AP)
},
{
.max = 1,
.types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
BIT(NL80211_IFTYPE_P2P_GO)
},
};
static const struct ieee80211_iface_combination brcmf_iface_combos[] = {
{
.max_interfaces = BRCMF_IFACE_MAX_CNT - 1,
.num_different_channels = 1, /* no multi-channel for now */
.n_limits = ARRAY_SIZE(brcmf_iface_limits),
.limits = brcmf_iface_limits
}
};
static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
{
struct wiphy *wiphy;
@ -3693,10 +3777,15 @@ static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
}
set_wiphy_dev(wiphy, phydev);
wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
wiphy->max_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC) |
BIT(NL80211_IFTYPE_AP);
BIT(NL80211_IFTYPE_AP) |
BIT(NL80211_IFTYPE_P2P_CLIENT) |
BIT(NL80211_IFTYPE_P2P_GO);
wiphy->iface_combinations = brcmf_iface_combos;
wiphy->n_iface_combinations = ARRAY_SIZE(brcmf_iface_combos);
wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz;
wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_a; /* Set
* it as 11a by default.
@ -3722,23 +3811,25 @@ static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
return wiphy;
}
static
struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
struct net_device *netdev,
s32 mode, bool pm_block)
enum nl80211_iftype type,
bool pm_block)
{
struct brcmf_cfg80211_vif *vif;
if (cfg->vif_cnt == BRCMF_IFACE_MAX_CNT)
return ERR_PTR(-ENOSPC);
brcmf_dbg(TRACE, "allocating virtual interface (size=%d)\n",
sizeof(*vif));
vif = kzalloc(sizeof(*vif), GFP_KERNEL);
if (!vif)
return ERR_PTR(-ENOMEM);
vif->wdev.wiphy = cfg->wiphy;
vif->wdev.netdev = netdev;
vif->wdev.iftype = brcmf_mode_to_nl80211_iftype(mode);
vif->wdev.iftype = type;
if (netdev) {
vif->ifp = netdev_priv(netdev);
@ -3746,7 +3837,7 @@ struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
SET_NETDEV_DEV(netdev, wiphy_dev(cfg->wiphy));
}
vif->mode = mode;
vif->mode = brcmf_nl80211_iftype_to_mode(type);
vif->pm_block = pm_block;
vif->roam_off = -1;
@ -3757,7 +3848,7 @@ struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
return vif;
}
static void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
{
struct brcmf_cfg80211_info *cfg;
struct wiphy *wiphy;
@ -4226,7 +4317,7 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
cfg->pub = drvr;
INIT_LIST_HEAD(&cfg->vif_list);
vif = brcmf_alloc_vif(cfg, ndev, WL_MODE_BSS, false);
vif = brcmf_alloc_vif(cfg, ndev, NL80211_IFTYPE_STATION, false);
if (IS_ERR(vif)) {
wiphy_free(wiphy);
return NULL;
@ -4237,6 +4328,7 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
brcmf_err("Failed to init iwm_priv (%d)\n", err);
goto cfg80211_attach_out;
}
brcmf_p2p_attach(cfg);
ifp->vif = vif;
return cfg;
@ -4482,3 +4574,14 @@ s32 brcmf_cfg80211_down(struct net_device *ndev)
return err;
}
u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state)
{
struct brcmf_cfg80211_vif *vif;
bool result = 0;
list_for_each_entry(vif, &cfg->vif_list, list) {
if (test_bit(state, &vif->sme_state))
result++;
}
return result;
}

78
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
View File

@ -41,6 +41,38 @@
#define WL_AUTH_SHARED_KEY 1 /* d11 shared authentication */
#define IE_MAX_LEN 512
/* IE TLV processing */
#define TLV_LEN_OFF 1 /* length offset */
#define TLV_HDR_LEN 2 /* header length */
#define TLV_BODY_OFF 2 /* body offset */
#define TLV_OUI_LEN 3 /* oui id length */
/* 802.11 Mgmt Packet flags */
#define BRCMF_VNDR_IE_BEACON_FLAG 0x1
#define BRCMF_VNDR_IE_PRBRSP_FLAG 0x2
#define BRCMF_VNDR_IE_ASSOCRSP_FLAG 0x4
#define BRCMF_VNDR_IE_AUTHRSP_FLAG 0x8
#define BRCMF_VNDR_IE_PRBREQ_FLAG 0x10
#define BRCMF_VNDR_IE_ASSOCREQ_FLAG 0x20
/* vendor IE in IW advertisement protocol ID field */
#define BRCMF_VNDR_IE_IWAPID_FLAG 0x40
/* allow custom IE id */
#define BRCMF_VNDR_IE_CUSTOM_FLAG 0x100
/* P2P Action Frames flags (spec ordered) */
#define BRCMF_VNDR_IE_GONREQ_FLAG 0x001000
#define BRCMF_VNDR_IE_GONRSP_FLAG 0x002000
#define BRCMF_VNDR_IE_GONCFM_FLAG 0x004000
#define BRCMF_VNDR_IE_INVREQ_FLAG 0x008000
#define BRCMF_VNDR_IE_INVRSP_FLAG 0x010000
#define BRCMF_VNDR_IE_DISREQ_FLAG 0x020000
#define BRCMF_VNDR_IE_DISRSP_FLAG 0x040000
#define BRCMF_VNDR_IE_PRDREQ_FLAG 0x080000
#define BRCMF_VNDR_IE_PRDRSP_FLAG 0x100000
#define BRCMF_VNDR_IE_P2PAF_SHIFT 12
/**
* enum brcmf_scan_status - dongle scan status
*
@ -52,11 +84,19 @@ enum brcmf_scan_status {
BRCMF_SCAN_STATUS_ABORT,
};
/* wi-fi mode */
/**
* enum wl_mode - driver mode of virtual interface.
*
* @WL_MODE_BSS: connects to BSS.
* @WL_MODE_IBSS: operate as ad-hoc.
* @WL_MODE_AP: operate as access-point.
* @WL_MODE_P2P: provide P2P discovery.
*/
enum wl_mode {
WL_MODE_BSS,
WL_MODE_IBSS,
WL_MODE_AP
WL_MODE_AP,
WL_MODE_P2P
};
/* dongle configuration */
@ -122,14 +162,18 @@ enum brcmf_vif_status {
/**
* struct vif_saved_ie - holds saved IEs for a virtual interface.
*
* @probe_req_ie: IE info for probe request.
* @probe_res_ie: IE info for probe response.
* @beacon_ie: IE info for beacon frame.
* @probe_req_ie_len: IE info length for probe request.
* @probe_res_ie_len: IE info length for probe response.
* @beacon_ie_len: IE info length for beacon frame.
*/
struct vif_saved_ie {
u8 probe_req_ie[VNDR_IES_BUF_LEN];
u8 probe_res_ie[IE_MAX_LEN];
u8 beacon_ie[IE_MAX_LEN];
u32 probe_req_ie_len;
u32 probe_res_ie_len;
u32 beacon_ie_len;
};
@ -189,6 +233,9 @@ struct escan_info {
u8 escan_buf[WL_ESCAN_BUF_SIZE];
struct wiphy *wiphy;
struct net_device *ndev;
s32 (*run)(struct brcmf_cfg80211_info *cfg,
struct net_device *ndev,
struct cfg80211_scan_request *request, u16 action);
};
/**
@ -277,6 +324,7 @@ struct brcmf_pno_scanresults_le {
*
* @wiphy: wiphy object for cfg80211 interface.
* @conf: dongle configuration.
* @p2p: peer-to-peer specific information.
* @scan_request: cfg80211 scan request object.
* @usr_sync: mainly for dongle up/down synchronization.
* @bss_list: bss_list holding scanned ap information.
@ -308,6 +356,7 @@ struct brcmf_pno_scanresults_le {
struct brcmf_cfg80211_info {
struct wiphy *wiphy;
struct brcmf_cfg80211_conf *conf;
struct brcmf_p2p_info p2p;
struct cfg80211_scan_request *scan_request;
struct mutex usr_sync;
struct brcmf_scan_results *bss_list;
@ -337,6 +386,19 @@ struct brcmf_cfg80211_info {
u8 vif_cnt;
};
/**
* struct brcmf_tlv - tag_ID/length/value_buffer tuple.
*
* @id: tag identifier.
* @len: number of bytes in value buffer.
* @data: value buffer.
*/
struct brcmf_tlv {
u8 id;
u8 len;
u8 data[1];
};
static inline struct wiphy *cfg_to_wiphy(struct brcmf_cfg80211_info *cfg)
{
return cfg->wiphy;
@ -389,4 +451,16 @@ void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg);
s32 brcmf_cfg80211_up(struct net_device *ndev);
s32 brcmf_cfg80211_down(struct net_device *ndev);
struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
struct net_device *netdev,
enum nl80211_iftype type,
bool pm_block);
void brcmf_free_vif(struct brcmf_cfg80211_vif *vif);
s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag,
const u8 *vndr_ie_buf, u32 vndr_ie_len);
struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key);
u16 channel_to_chanspec(struct ieee80211_channel *ch);
u32 wl_get_vif_state_all(struct brcmf_cfg80211_info *cfg, unsigned long state);
#endif /* _wl_cfg80211_h_ */