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linux-sg2042
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wlp: start/stop radio on network interface up/down 

Signed-off-by: David Vrabel <david.vrabel@csr.com>
This commit is contained in:
David Vrabel 2008-11-17 16:16:51 +00:00
parent 6fae35f9ce
commit e8e1594c81
5 changed files with 27 additions and 46 deletions
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2
drivers/uwb/i1480/i1480u-wlp/lc.c
View File

@ -206,7 +206,7 @@ int i1480u_add(struct i1480u *i1480u, struct usb_interface *iface)
wlp->fill_device_info = i1480u_fill_device_info;
wlp->stop_queue = i1480u_stop_queue;
wlp->start_queue = i1480u_start_queue;
result = wlp_setup(wlp, rc);
result = wlp_setup(wlp, rc, net_dev);
if (result < 0) {
dev_err(&iface->dev, "Cannot setup WLP\n");
goto error_wlp_setup;

51
drivers/uwb/i1480/i1480u-wlp/netdev.c
View File

@ -207,6 +207,11 @@ int i1480u_open(struct net_device *net_dev)
result = i1480u_rx_setup(i1480u); /* Alloc RX stuff */
if (result < 0)
goto error_rx_setup;
result = uwb_radio_start(&wlp->pal);
if (result < 0)
goto error_radio_start;
netif_wake_queue(net_dev);
#ifdef i1480u_FLOW_CONTROL
result = usb_submit_urb(i1480u->notif_urb, GFP_KERNEL);;
@ -215,25 +220,20 @@ int i1480u_open(struct net_device *net_dev)
goto error_notif_urb_submit;
}
#endif
i1480u->uwb_notifs_handler.cb = i1480u_uwb_notifs_cb;
i1480u->uwb_notifs_handler.data = i1480u;
if (uwb_bg_joined(rc))
netif_carrier_on(net_dev);
else
netif_carrier_off(net_dev);
uwb_notifs_register(rc, &i1480u->uwb_notifs_handler);
/* Interface is up with an address, now we can create WSS */
result = wlp_wss_setup(net_dev, &wlp->wss);
if (result < 0) {
dev_err(dev, "Can't create WSS: %d. \n", result);
goto error_notif_deregister;
goto error_wss_setup;
}
return 0;
error_notif_deregister:
uwb_notifs_deregister(rc, &i1480u->uwb_notifs_handler);
error_wss_setup:
#ifdef i1480u_FLOW_CONTROL
usb_kill_urb(i1480u->notif_urb);
error_notif_urb_submit:
#endif
uwb_radio_stop(&wlp->pal);
error_radio_start:
netif_stop_queue(net_dev);
i1480u_rx_release(i1480u);
error_rx_setup:
@ -248,16 +248,15 @@ int i1480u_stop(struct net_device *net_dev)
{
struct i1480u *i1480u = netdev_priv(net_dev);
struct wlp *wlp = &i1480u->wlp;
struct uwb_rc *rc = wlp->rc;
BUG_ON(wlp->rc == NULL);
wlp_wss_remove(&wlp->wss);
uwb_notifs_deregister(rc, &i1480u->uwb_notifs_handler);
netif_carrier_off(net_dev);
#ifdef i1480u_FLOW_CONTROL
usb_kill_urb(i1480u->notif_urb);
#endif
netif_stop_queue(net_dev);
uwb_radio_stop(&wlp->pal);
i1480u_rx_release(i1480u);
i1480u_tx_release(i1480u);
return 0;
@ -303,34 +302,6 @@ int i1480u_change_mtu(struct net_device *net_dev, int mtu)
return 0;
}
/**
* Callback function to handle events from UWB
* When we see other devices we know the carrier is ok,
* if we are the only device in the beacon group we set the carrier
* state to off.
* */
void i1480u_uwb_notifs_cb(void *data, struct uwb_dev *uwb_dev,
enum uwb_notifs event)
{
struct i1480u *i1480u = data;
struct net_device *net_dev = i1480u->net_dev;
struct device *dev = &i1480u->usb_iface->dev;
switch (event) {
case UWB_NOTIF_BG_JOIN:
netif_carrier_on(net_dev);
dev_info(dev, "Link is up\n");
break;
case UWB_NOTIF_BG_LEAVE:
netif_carrier_off(net_dev);
dev_info(dev, "Link is down\n");
break;
default:
dev_err(dev, "don't know how to handle event %d from uwb\n",
event);
}
}
/**
* Stop the network queue
*

3
drivers/uwb/uwb-debug.c
View File

@ -33,8 +33,6 @@
#include <linux/seq_file.h>
#include <linux/uwb/debug-cmd.h>
#define D_LOCAL 0
#include <linux/uwb/debug.h>
#include "uwb-internal.h"
@ -314,7 +312,6 @@ static struct file_operations drp_avail_fops = {
static void uwb_dbg_channel_changed(struct uwb_pal *pal, int channel)
{
struct uwb_dbg *dbg = container_of(pal, struct uwb_dbg, pal);
struct device *dev = &pal->rc->uwb_dev.dev;
if (channel > 0)

14
drivers/uwb/wlp/wlp-lc.c
View File

@ -526,7 +526,17 @@ void wlp_uwb_notifs_cb(void *_wlp, struct uwb_dev *uwb_dev,
}
}
int wlp_setup(struct wlp *wlp, struct uwb_rc *rc)
static void wlp_channel_changed(struct uwb_pal *pal, int channel)
{
struct wlp *wlp = container_of(pal, struct wlp, pal);
if (channel < 0)
netif_carrier_off(wlp->ndev);
else
netif_carrier_on(wlp->ndev);
}
int wlp_setup(struct wlp *wlp, struct uwb_rc *rc, struct net_device *ndev)
{
struct device *dev = &rc->uwb_dev.dev;
int result;
@ -537,6 +547,7 @@ int wlp_setup(struct wlp *wlp, struct uwb_rc *rc)
BUG_ON(wlp->stop_queue == NULL);
BUG_ON(wlp->start_queue == NULL);
wlp->rc = rc;
wlp->ndev = ndev;
wlp_eda_init(&wlp->eda);/* Set up address cache */
wlp->uwb_notifs_handler.cb = wlp_uwb_notifs_cb;
wlp->uwb_notifs_handler.data = wlp;
@ -544,6 +555,7 @@ int wlp_setup(struct wlp *wlp, struct uwb_rc *rc)
uwb_pal_init(&wlp->pal);
wlp->pal.rc = rc;
wlp->pal.channel_changed = wlp_channel_changed;
result = uwb_pal_register(&wlp->pal);
if (result < 0)
uwb_notifs_deregister(wlp->rc, &wlp->uwb_notifs_handler);

3
include/linux/wlp.h
View File

@ -646,6 +646,7 @@ struct wlp_wss {
struct wlp {
struct mutex mutex;
struct uwb_rc *rc; /* UWB radio controller */
struct net_device *ndev;
struct uwb_pal pal;
struct wlp_eda eda;
struct wlp_uuid uuid;
@ -675,7 +676,7 @@ struct wlp_wss_attribute {
static struct wlp_wss_attribute wss_attr_##_name = __ATTR(_name, _mode, \
_show, _store)
extern int wlp_setup(struct wlp *, struct uwb_rc *);
extern int wlp_setup(struct wlp *, struct uwb_rc *, struct net_device *ndev);
extern void wlp_remove(struct wlp *);
extern ssize_t wlp_neighborhood_show(struct wlp *, char *);
extern int wlp_wss_setup(struct net_device *, struct wlp_wss *);