mirror of https://gitee.com/openkylin/linux.git
191 lines
5.0 KiB
C
191 lines
5.0 KiB
C
|
|
/*
|
|
* Radio tuning for GCT GRF5101 on RTL8180
|
|
*
|
|
* Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
|
|
*
|
|
* Code from the BSD driver and the rtl8181 project have been
|
|
* very useful to understand certain things
|
|
*
|
|
* I want to thanks the Authors of such projects and the Ndiswrapper
|
|
* project Authors.
|
|
*
|
|
* A special Big Thanks also is for all people who donated me cards,
|
|
* making possible the creation of the original rtl8180 driver
|
|
* from which this code is derived!
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/delay.h>
|
|
#include <net/mac80211.h>
|
|
|
|
#include "rtl8180.h"
|
|
#include "rtl8180_grf5101.h"
|
|
|
|
static const int grf5101_encode[] = {
|
|
0x0, 0x8, 0x4, 0xC,
|
|
0x2, 0xA, 0x6, 0xE,
|
|
0x1, 0x9, 0x5, 0xD,
|
|
0x3, 0xB, 0x7, 0xF
|
|
};
|
|
|
|
static void write_grf5101(struct ieee80211_hw *dev, u8 addr, u32 data)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
u32 phy_config;
|
|
|
|
phy_config = grf5101_encode[(data >> 8) & 0xF];
|
|
phy_config |= grf5101_encode[(data >> 4) & 0xF] << 4;
|
|
phy_config |= grf5101_encode[data & 0xF] << 8;
|
|
phy_config |= grf5101_encode[(addr >> 1) & 0xF] << 12;
|
|
phy_config |= (addr & 1) << 16;
|
|
phy_config |= grf5101_encode[(data & 0xf000) >> 12] << 24;
|
|
|
|
/* MAC will bang bits to the chip */
|
|
phy_config |= 0x90000000;
|
|
|
|
rtl818x_iowrite32(priv,
|
|
(__le32 __iomem *) &priv->map->RFPinsOutput, phy_config);
|
|
|
|
msleep(3);
|
|
}
|
|
|
|
static void grf5101_write_phy_antenna(struct ieee80211_hw *dev, short chan)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
u8 ant = GRF5101_ANTENNA;
|
|
|
|
if (priv->rfparam & RF_PARAM_ANTBDEFAULT)
|
|
ant |= BB_ANTENNA_B;
|
|
|
|
if (chan == 14)
|
|
ant |= BB_ANTATTEN_CHAN14;
|
|
|
|
rtl8180_write_phy(dev, 0x10, ant);
|
|
}
|
|
|
|
static u8 grf5101_rf_calc_rssi(u8 agc, u8 sq)
|
|
{
|
|
if (agc > 60)
|
|
return 65;
|
|
|
|
/* TODO(?): just return agc (or agc + 5) to avoid mult / div */
|
|
return 65 * agc / 60;
|
|
}
|
|
|
|
static void grf5101_rf_set_channel(struct ieee80211_hw *dev,
|
|
struct ieee80211_conf *conf)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
int channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
|
|
u32 txpw = priv->channels[channel - 1].hw_value & 0xFF;
|
|
u32 chan = channel - 1;
|
|
|
|
/* set TX power */
|
|
write_grf5101(dev, 0x15, 0x0);
|
|
write_grf5101(dev, 0x06, txpw);
|
|
write_grf5101(dev, 0x15, 0x10);
|
|
write_grf5101(dev, 0x15, 0x0);
|
|
|
|
/* set frequency */
|
|
write_grf5101(dev, 0x07, 0x0);
|
|
write_grf5101(dev, 0x0B, chan);
|
|
write_grf5101(dev, 0x07, 0x1000);
|
|
|
|
grf5101_write_phy_antenna(dev, channel);
|
|
}
|
|
|
|
static void grf5101_rf_stop(struct ieee80211_hw *dev)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
u32 anaparam;
|
|
|
|
anaparam = priv->anaparam;
|
|
anaparam &= 0x000fffff;
|
|
anaparam |= 0x3f900000;
|
|
rtl8180_set_anaparam(priv, anaparam);
|
|
|
|
write_grf5101(dev, 0x07, 0x0);
|
|
write_grf5101(dev, 0x1f, 0x45);
|
|
write_grf5101(dev, 0x1f, 0x5);
|
|
write_grf5101(dev, 0x00, 0x8e4);
|
|
}
|
|
|
|
static void grf5101_rf_init(struct ieee80211_hw *dev)
|
|
{
|
|
struct rtl8180_priv *priv = dev->priv;
|
|
|
|
rtl8180_set_anaparam(priv, priv->anaparam);
|
|
|
|
write_grf5101(dev, 0x1f, 0x0);
|
|
write_grf5101(dev, 0x1f, 0x0);
|
|
write_grf5101(dev, 0x1f, 0x40);
|
|
write_grf5101(dev, 0x1f, 0x60);
|
|
write_grf5101(dev, 0x1f, 0x61);
|
|
write_grf5101(dev, 0x1f, 0x61);
|
|
write_grf5101(dev, 0x00, 0xae4);
|
|
write_grf5101(dev, 0x1f, 0x1);
|
|
write_grf5101(dev, 0x1f, 0x41);
|
|
write_grf5101(dev, 0x1f, 0x61);
|
|
|
|
write_grf5101(dev, 0x01, 0x1a23);
|
|
write_grf5101(dev, 0x02, 0x4971);
|
|
write_grf5101(dev, 0x03, 0x41de);
|
|
write_grf5101(dev, 0x04, 0x2d80);
|
|
write_grf5101(dev, 0x05, 0x68ff); /* 0x61ff original value */
|
|
write_grf5101(dev, 0x06, 0x0);
|
|
write_grf5101(dev, 0x07, 0x0);
|
|
write_grf5101(dev, 0x08, 0x7533);
|
|
write_grf5101(dev, 0x09, 0xc401);
|
|
write_grf5101(dev, 0x0a, 0x0);
|
|
write_grf5101(dev, 0x0c, 0x1c7);
|
|
write_grf5101(dev, 0x0d, 0x29d3);
|
|
write_grf5101(dev, 0x0e, 0x2e8);
|
|
write_grf5101(dev, 0x10, 0x192);
|
|
write_grf5101(dev, 0x11, 0x248);
|
|
write_grf5101(dev, 0x12, 0x0);
|
|
write_grf5101(dev, 0x13, 0x20c4);
|
|
write_grf5101(dev, 0x14, 0xf4fc);
|
|
write_grf5101(dev, 0x15, 0x0);
|
|
write_grf5101(dev, 0x16, 0x1500);
|
|
|
|
write_grf5101(dev, 0x07, 0x1000);
|
|
|
|
/* baseband configuration */
|
|
rtl8180_write_phy(dev, 0, 0xa8);
|
|
rtl8180_write_phy(dev, 3, 0x0);
|
|
rtl8180_write_phy(dev, 4, 0xc0);
|
|
rtl8180_write_phy(dev, 5, 0x90);
|
|
rtl8180_write_phy(dev, 6, 0x1e);
|
|
rtl8180_write_phy(dev, 7, 0x64);
|
|
|
|
grf5101_write_phy_antenna(dev, 1);
|
|
|
|
rtl8180_write_phy(dev, 0x11, 0x88);
|
|
|
|
if (rtl818x_ioread8(priv, &priv->map->CONFIG2) &
|
|
RTL818X_CONFIG2_ANTENNA_DIV)
|
|
rtl8180_write_phy(dev, 0x12, 0xc0); /* enable ant diversity */
|
|
else
|
|
rtl8180_write_phy(dev, 0x12, 0x40); /* disable ant diversity */
|
|
|
|
rtl8180_write_phy(dev, 0x13, 0x90 | priv->csthreshold);
|
|
|
|
rtl8180_write_phy(dev, 0x19, 0x0);
|
|
rtl8180_write_phy(dev, 0x1a, 0xa0);
|
|
rtl8180_write_phy(dev, 0x1b, 0x44);
|
|
}
|
|
|
|
const struct rtl818x_rf_ops grf5101_rf_ops = {
|
|
.name = "GCT",
|
|
.init = grf5101_rf_init,
|
|
.stop = grf5101_rf_stop,
|
|
.set_chan = grf5101_rf_set_channel,
|
|
.calc_rssi = grf5101_rf_calc_rssi,
|
|
};
|