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/* Note : this particular snipset of code is available under
* the LGPL, MPL or BSD license (at your choice).
* Jean II
*/
/* Backward compatibility for Wireless Extension 9 */
#ifndef IW_POWER_MODIFIER
#define IW_POWER_MODIFIER 0x000F /* Modify a parameter */
#define IW_POWER_MIN 0x0001 /* Value is a minimum */
#define IW_POWER_MAX 0x0002 /* Value is a maximum */
#define IW_POWER_RELATIVE 0x0004 /* Value is not in seconds/ms/us */
#endif IW_POWER_MODIFIER
struct net_local {
int pm_on; // Power Management enabled
int pm_multi; // Receive multicasts
int pm_period; // Power Management period
int pm_period_auto; // Power Management auto mode
int pm_max_period; // Power Management max period
int pm_min_period; // Power Management min period
int pm_timeout; // Power Management timeout
};
/* Set the desired Power Management mode */
case SIOCSIWPOWER:
/* Disable it ? */
if(wrq->u.power.disabled)
{
local->pm_on = 0;
local->need_commit = 1;
}
else
{
/* Check mode */
switch(wrq->u.power.flags & IW_POWER_MODE)
{
case IW_POWER_UNICAST_R:
local->pm_multi = 0;
local->need_commit = 1;
break;
case IW_POWER_ALL_R:
local->pm_multi = 1;
local->need_commit = 1;
break;
case IW_POWER_ON: /* None = ok */
break;
default: /* Invalid */
rc = -EINVAL;
}
/* Set period */
if(wrq->u.power.flags & IW_POWER_PERIOD)
{
int period = wrq->u.power.value/1000000;
/* Hum: check if within bounds... */
/* Activate PM */
local->pm_on = 1;
local->need_commit = 1;
/* Check min value */
if(wrq->u.power.flags & IW_POWER_MIN)
{
local->pm_min_period = period;
local->pm_period_auto = 1;
}
else
/* Check max value */
if(wrq->u.power.flags & IW_POWER_MAX)
{
local->pm_max_period = period;
local->pm_period_auto = 1;
}
else
{
/* Fixed value */
local->pm_period = period;
local->pm_period_auto = 0;
}
}
/* Set timeout */
if(wrq->u.power.flags & IW_POWER_TIMEOUT)
{
/* Activate PM */
local->pm_on = 1;
local->need_commit = 1;
/* Fixed value in ms */
local->pm_timeout = wrq->u.power.value/1000;
}
}
break;
/* Get the power management settings */
case SIOCGIWPOWER:
wrq->u.power.disabled = !local->pm_on;
/* By default, display the period */
if(!(wrq->u.power.flags & IW_POWER_TIMEOUT))
{
int inc_flags = wrq->u.power.flags;
wrq->u.power.flags = IW_POWER_PERIOD | IW_POWER_RELATIVE;
/* Check if auto */
if(local->pm_period_auto)
{
/* By default, the min */
if(!(inc_flags & IW_POWER_MAX))
{
wrq->u.power.value = local->pm_min_period * 1000000;
wrq->u.power.flags |= IW_POWER_MIN;
}
else
{
wrq->u.power.value = local->pm_max_period * 1000000;
wrq->u.power.flags |= IW_POWER_MAX;
}
}
else
{
/* Fixed value. Check the flags */
if(inc_flags & (IW_POWER_MIN | IW_POWER_MAX))
rc = -EINVAL;
else
wrq->u.power.value = local->pm_period * 1000000;
}
}
else
{
/* Deal with the timeout - always fixed */
wrq->u.power.flags = IW_POWER_TIMEOUT;
wrq->u.power.value = local->pm_timeout * 1000;
}
if(local->pm_multi)
wrq->u.power.flags |= IW_POWER_ALL_R;
else
wrq->u.power.flags |= IW_POWER_UNICAST_R;
break;
#endif /* WIRELESS_EXT > 8 */
#if WIRELESS_EXT > 9
range.min_pmp = 1000000; /* 1 units */
range.max_pmp = 12000000; /* 12 units */
range.min_pmt = 1000; /* 1 ms */
range.max_pmt = 1000000; /* 1 s */
range.pmp_flags = IW_POWER_PERIOD | IW_POWER_RELATIVE |
IW_POWER_MIN | IW_POWER_MAX;
range.pmt_flags = IW_POWER_TIMEOUT;
range.pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
#endif /* WIRELESS_EXT > 9 */
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