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brcmfmac: add p2p change vif routines. 

Add support for changing existing interface into p2p go
interface.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-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:
Hante Meuleman 2013-02-08 15:53:44 +01:00 committed by John W. Linville
parent 7ee2d92600
commit 7a5c1f64f6
5 changed files with 120 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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 "fwil_types.h"
#include "p2p.h"
#include "wl_cfg80211.h"
#include "fwil.h"

108
drivers/net/wireless/brcm80211/brcmfmac/p2p.c
View File

@ -718,24 +718,105 @@ void brcmf_p2p_detach(struct brcmf_p2p_info *p2p)
memset(p2p, 0, sizeof(*p2p));
}
static int brcmf_p2p_request_p2p_if(struct brcmf_if *ifp, u8 ea[ETH_ALEN],
/**
* brcmf_p2p_get_current_chanspec() - Get current operation channel.
*
* @p2p: P2P specific data.
* @chanspec: chanspec to be returned.
*/
static void brcmf_p2p_get_current_chanspec(struct brcmf_p2p_info *p2p,
u16 *chanspec)
{
struct brcmf_if *ifp;
struct brcmf_fil_chan_info_le ci;
s32 err;
ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
*chanspec = 11 & WL_CHANSPEC_CHAN_MASK;
err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_CHANNEL, &ci, sizeof(ci));
if (!err) {
*chanspec = le32_to_cpu(ci.hw_channel) & WL_CHANSPEC_CHAN_MASK;
if (*chanspec < CH_MAX_2G_CHANNEL)
*chanspec |= WL_CHANSPEC_BAND_2G;
else
*chanspec |= WL_CHANSPEC_BAND_5G;
}
*chanspec |= WL_CHANSPEC_BW_20 | WL_CHANSPEC_CTL_SB_NONE;
}
/**
* Change a P2P Role.
* Parameters:
* @mac: MAC address of the BSS to change a role
* Returns 0 if success.
*/
int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg,
enum brcmf_fil_p2p_if_types if_type)
{
struct brcmf_p2p_info *p2p = &cfg->p2p;
struct brcmf_cfg80211_vif *vif;
struct brcmf_fil_p2p_if_le if_request;
s32 err;
u16 chanspec;
brcmf_dbg(TRACE, "Enter\n");
vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
if (!vif) {
brcmf_err("vif for P2PAPI_BSSCFG_PRIMARY does not exist\n");
return -EPERM;
}
brcmf_notify_escan_complete(cfg, vif->ifp->ndev, true, true);
vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif;
if (!vif) {
brcmf_err("vif for P2PAPI_BSSCFG_CONNECTION does not exist\n");
return -EPERM;
}
brcmf_set_mpc(vif->ifp->ndev, 0);
/* In concurrency case, STA may be already associated in a particular */
/* channel. so retrieve the current channel of primary interface and */
/* then start the virtual interface on that. */
brcmf_p2p_get_current_chanspec(p2p, &chanspec);
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));
brcmf_cfg80211_arm_vif_event(cfg, vif);
err = brcmf_fil_iovar_data_set(vif->ifp, "p2p_ifupd", &if_request,
sizeof(if_request));
if (err) {
brcmf_err("p2p_ifupd FAILED, err=%d\n", err);
brcmf_cfg80211_arm_vif_event(cfg, NULL);
return err;
}
err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_CHANGE,
msecs_to_jiffies(1500));
brcmf_cfg80211_arm_vif_event(cfg, NULL);
if (!err) {
brcmf_err("No BRCMF_E_IF_CHANGE event received\n");
return -EIO;
}
err = brcmf_fil_cmd_int_set(vif->ifp, BRCMF_C_SET_SCB_TIMEOUT,
BRCMF_SCB_TIMEOUT_VALUE);
return err;
}
static int brcmf_p2p_request_p2p_if(struct brcmf_p2p_info *p2p,
struct brcmf_if *ifp, u8 ea[ETH_ALEN],
enum brcmf_fil_p2p_if_types iftype)
{
struct brcmf_fil_p2p_if_le if_request;
struct brcmf_fil_chan_info_le ci;
u16 chanspec = 11 & WL_CHANSPEC_CHAN_MASK;
int err;
u16 chanspec;
/* we need a default channel */
err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_CHANNEL, &ci, sizeof(ci));
if (!err) {
chanspec = le32_to_cpu(ci.hw_channel) & WL_CHANSPEC_CHAN_MASK;
if (chanspec < CH_MAX_2G_CHANNEL)
chanspec |= WL_CHANSPEC_BAND_2G;
else
chanspec |= WL_CHANSPEC_BAND_5G;
}
chanspec |= WL_CHANSPEC_BW_20 | WL_CHANSPEC_CTL_SB_NONE;
brcmf_p2p_get_current_chanspec(p2p, &chanspec);
/* fill the firmware request */
memcpy(if_request.addr, ea, ETH_ALEN);
@ -813,7 +894,8 @@ 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(ifp, cfg->p2p.int_addr, iftype);
err = brcmf_p2p_request_p2p_if(&cfg->p2p, ifp, cfg->p2p.int_addr,
iftype);
if (err) {
brcmf_cfg80211_arm_vif_event(cfg, NULL);
goto fail;

2
drivers/net/wireless/brcm80211/brcmfmac/p2p.h
View File

@ -108,6 +108,8 @@ 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_ifchange(struct brcmf_cfg80211_info *cfg,
enum brcmf_fil_p2p_if_types if_type);
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,

23
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 "fwil_types.h"
#include "p2p.h"
#include "wl_cfg80211.h"
#include "fwil.h"
@ -445,7 +446,7 @@ static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy,
}
}
static void brcmf_set_mpc(struct net_device *ndev, int mpc)
void brcmf_set_mpc(struct net_device *ndev, int mpc)
{
struct brcmf_if *ifp = netdev_priv(ndev);
s32 err = 0;
@ -460,7 +461,7 @@ static void brcmf_set_mpc(struct net_device *ndev, int mpc)
}
}
static s32
s32
brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
struct net_device *ndev,
bool aborted, bool fw_abort)
@ -567,6 +568,7 @@ brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params)
{
struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
struct brcmf_if *ifp = netdev_priv(ndev);
struct brcmf_cfg80211_vif *vif = ifp->vif;
s32 infra = 0;
@ -590,6 +592,7 @@ brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
infra = 1;
break;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_P2P_GO:
vif->mode = WL_MODE_AP;
ap = 1;
break;
@ -599,8 +602,14 @@ brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
}
if (ap) {
set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
brcmf_dbg(INFO, "IF Type = AP\n");
if (type == NL80211_IFTYPE_P2P_GO) {
brcmf_dbg(INFO, "IF Type = P2P GO\n");
err = brcmf_p2p_ifchange(cfg, BRCMF_FIL_P2P_IF_GO);
}
if (!err) {
set_bit(BRCMF_VIF_STATUS_AP_CREATING, &vif->sme_state);
brcmf_dbg(INFO, "IF Type = AP\n");
}
} else {
err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, infra);
if (err) {
@ -4422,7 +4431,6 @@ static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
ifevent->action, ifevent->flags, ifevent->ifidx,
ifevent->bssidx);
mutex_lock(&event->vif_event_lock);
event->action = ifevent->action;
vif = event->vif;
@ -4453,6 +4461,11 @@ static s32 brcmf_notify_vif_event(struct brcmf_if *ifp,
wake_up(&event->vif_wq);
return 0;
case BRCMF_E_IF_CHANGE:
mutex_unlock(&event->vif_event_lock);
wake_up(&event->vif_wq);
return 0;
default:
mutex_unlock(&event->vif_event_lock);
break;

4
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
View File

@ -492,5 +492,9 @@ bool brcmf_cfg80211_vif_event_armed(struct brcmf_cfg80211_info *cfg);
int brcmf_cfg80211_wait_vif_event_timeout(struct brcmf_cfg80211_info *cfg,
u8 action, ulong timeout);
void brcmf_cfg80211_vif_complete(struct brcmf_cfg80211_info *info);
s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
struct net_device *ndev,
bool aborted, bool fw_abort);
void brcmf_set_mpc(struct net_device *ndev, int mpc);
#endif /* _wl_cfg80211_h_ */