Revision 20ff55655a93554611fb7790c8a2d29ee4598d24 authored by Woojung Huh on 16 March 2016, 22:10:40 UTC, committed by David S. Miller on 19 March 2016, 02:27:48 UTC
Update to handle statistics counter rollover. Check statistics counter periodically and compensate it when counter value rolls over at max (20 or 32bits). Simple mechanism adjusts monitoring timer to allow USB auto suspend. Signed-off-by: Woojung Huh <woojung.huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 7fa7728
channel.c
/*
* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* File: channel.c
*
*/
#include "baseband.h"
#include "channel.h"
#include "device.h"
#include "rf.h"
static struct ieee80211_rate vnt_rates_bg[] = {
{ .bitrate = 10, .hw_value = RATE_1M },
{ .bitrate = 20, .hw_value = RATE_2M },
{ .bitrate = 55, .hw_value = RATE_5M },
{ .bitrate = 110, .hw_value = RATE_11M },
{ .bitrate = 60, .hw_value = RATE_6M },
{ .bitrate = 90, .hw_value = RATE_9M },
{ .bitrate = 120, .hw_value = RATE_12M },
{ .bitrate = 180, .hw_value = RATE_18M },
{ .bitrate = 240, .hw_value = RATE_24M },
{ .bitrate = 360, .hw_value = RATE_36M },
{ .bitrate = 480, .hw_value = RATE_48M },
{ .bitrate = 540, .hw_value = RATE_54M },
};
static struct ieee80211_rate vnt_rates_a[] = {
{ .bitrate = 60, .hw_value = RATE_6M },
{ .bitrate = 90, .hw_value = RATE_9M },
{ .bitrate = 120, .hw_value = RATE_12M },
{ .bitrate = 180, .hw_value = RATE_18M },
{ .bitrate = 240, .hw_value = RATE_24M },
{ .bitrate = 360, .hw_value = RATE_36M },
{ .bitrate = 480, .hw_value = RATE_48M },
{ .bitrate = 540, .hw_value = RATE_54M },
};
static struct ieee80211_channel vnt_channels_2ghz[] = {
{ .center_freq = 2412, .hw_value = 1 },
{ .center_freq = 2417, .hw_value = 2 },
{ .center_freq = 2422, .hw_value = 3 },
{ .center_freq = 2427, .hw_value = 4 },
{ .center_freq = 2432, .hw_value = 5 },
{ .center_freq = 2437, .hw_value = 6 },
{ .center_freq = 2442, .hw_value = 7 },
{ .center_freq = 2447, .hw_value = 8 },
{ .center_freq = 2452, .hw_value = 9 },
{ .center_freq = 2457, .hw_value = 10 },
{ .center_freq = 2462, .hw_value = 11 },
{ .center_freq = 2467, .hw_value = 12 },
{ .center_freq = 2472, .hw_value = 13 },
{ .center_freq = 2484, .hw_value = 14 }
};
static struct ieee80211_channel vnt_channels_5ghz[] = {
{ .center_freq = 4915, .hw_value = 15 },
{ .center_freq = 4920, .hw_value = 16 },
{ .center_freq = 4925, .hw_value = 17 },
{ .center_freq = 4935, .hw_value = 18 },
{ .center_freq = 4940, .hw_value = 19 },
{ .center_freq = 4945, .hw_value = 20 },
{ .center_freq = 4960, .hw_value = 21 },
{ .center_freq = 4980, .hw_value = 22 },
{ .center_freq = 5035, .hw_value = 23 },
{ .center_freq = 5040, .hw_value = 24 },
{ .center_freq = 5045, .hw_value = 25 },
{ .center_freq = 5055, .hw_value = 26 },
{ .center_freq = 5060, .hw_value = 27 },
{ .center_freq = 5080, .hw_value = 28 },
{ .center_freq = 5170, .hw_value = 29 },
{ .center_freq = 5180, .hw_value = 30 },
{ .center_freq = 5190, .hw_value = 31 },
{ .center_freq = 5200, .hw_value = 32 },
{ .center_freq = 5210, .hw_value = 33 },
{ .center_freq = 5220, .hw_value = 34 },
{ .center_freq = 5230, .hw_value = 35 },
{ .center_freq = 5240, .hw_value = 36 },
{ .center_freq = 5260, .hw_value = 37 },
{ .center_freq = 5280, .hw_value = 38 },
{ .center_freq = 5300, .hw_value = 39 },
{ .center_freq = 5320, .hw_value = 40 },
{ .center_freq = 5500, .hw_value = 41 },
{ .center_freq = 5520, .hw_value = 42 },
{ .center_freq = 5540, .hw_value = 43 },
{ .center_freq = 5560, .hw_value = 44 },
{ .center_freq = 5580, .hw_value = 45 },
{ .center_freq = 5600, .hw_value = 46 },
{ .center_freq = 5620, .hw_value = 47 },
{ .center_freq = 5640, .hw_value = 48 },
{ .center_freq = 5660, .hw_value = 49 },
{ .center_freq = 5680, .hw_value = 50 },
{ .center_freq = 5700, .hw_value = 51 },
{ .center_freq = 5745, .hw_value = 52 },
{ .center_freq = 5765, .hw_value = 53 },
{ .center_freq = 5785, .hw_value = 54 },
{ .center_freq = 5805, .hw_value = 55 },
{ .center_freq = 5825, .hw_value = 56 }
};
static struct ieee80211_supported_band vnt_supported_2ghz_band = {
.channels = vnt_channels_2ghz,
.n_channels = ARRAY_SIZE(vnt_channels_2ghz),
.bitrates = vnt_rates_bg,
.n_bitrates = ARRAY_SIZE(vnt_rates_bg),
};
static struct ieee80211_supported_band vnt_supported_5ghz_band = {
.channels = vnt_channels_5ghz,
.n_channels = ARRAY_SIZE(vnt_channels_5ghz),
.bitrates = vnt_rates_a,
.n_bitrates = ARRAY_SIZE(vnt_rates_a),
};
void vnt_init_bands(struct vnt_private *priv)
{
struct ieee80211_channel *ch;
int i;
switch (priv->byRFType) {
case RF_AIROHA7230:
case RF_UW2452:
case RF_NOTHING:
default:
ch = vnt_channels_5ghz;
for (i = 0; i < ARRAY_SIZE(vnt_channels_5ghz); i++) {
ch[i].max_power = 0x3f;
ch[i].flags = IEEE80211_CHAN_NO_HT40;
}
priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
&vnt_supported_5ghz_band;
/* fallthrough */
case RF_RFMD2959:
case RF_AIROHA:
case RF_AL2230S:
case RF_UW2451:
case RF_VT3226:
ch = vnt_channels_2ghz;
for (i = 0; i < ARRAY_SIZE(vnt_channels_2ghz); i++) {
ch[i].max_power = 0x3f;
ch[i].flags = IEEE80211_CHAN_NO_HT40;
}
priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
&vnt_supported_2ghz_band;
break;
}
}
/**
* set_channel() - Set NIC media channel
*
* @pDeviceHandler: The adapter to be set
* @uConnectionChannel: Channel to be set
*
* Return Value: true if succeeded; false if failed.
*
*/
bool set_channel(void *pDeviceHandler, struct ieee80211_channel *ch)
{
struct vnt_private *pDevice = pDeviceHandler;
bool bResult = true;
if (pDevice->byCurrentCh == ch->hw_value)
return bResult;
/* Set VGA to max sensitivity */
if (pDevice->bUpdateBBVGA &&
pDevice->byBBVGACurrent != pDevice->abyBBVGA[0]) {
pDevice->byBBVGACurrent = pDevice->abyBBVGA[0];
BBvSetVGAGainOffset(pDevice, pDevice->byBBVGACurrent);
}
/* clear NAV */
MACvRegBitsOn(pDevice->PortOffset, MAC_REG_MACCR, MACCR_CLRNAV);
/* TX_PE will reserve 3 us for MAX2829 A mode only,
it is for better TX throughput */
if (pDevice->byRFType == RF_AIROHA7230)
RFbAL7230SelectChannelPostProcess(pDevice, pDevice->byCurrentCh,
ch->hw_value);
pDevice->byCurrentCh = ch->hw_value;
bResult &= RFbSelectChannel(pDevice, pDevice->byRFType,
ch->hw_value);
/* Init Synthesizer Table */
if (pDevice->bEnablePSMode)
RFvWriteWakeProgSyn(pDevice, pDevice->byRFType, ch->hw_value);
BBvSoftwareReset(pDevice);
if (pDevice->byLocalID > REV_ID_VT3253_B1) {
unsigned long flags;
spin_lock_irqsave(&pDevice->lock, flags);
/* set HW default power register */
MACvSelectPage1(pDevice->PortOffset);
RFbSetPower(pDevice, RATE_1M, pDevice->byCurrentCh);
VNSvOutPortB(pDevice->PortOffset + MAC_REG_PWRCCK,
pDevice->byCurPwr);
RFbSetPower(pDevice, RATE_6M, pDevice->byCurrentCh);
VNSvOutPortB(pDevice->PortOffset + MAC_REG_PWROFDM,
pDevice->byCurPwr);
MACvSelectPage0(pDevice->PortOffset);
spin_unlock_irqrestore(&pDevice->lock, flags);
}
if (pDevice->byBBType == BB_TYPE_11B)
RFbSetPower(pDevice, RATE_1M, pDevice->byCurrentCh);
else
RFbSetPower(pDevice, RATE_6M, pDevice->byCurrentCh);
return bResult;
}
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