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Release 4.11 drivers/net/wireless/realtek/rtl818x/rtl8180/grf5101.c

/*
 * Radio tuning for GCT GRF5101 on RTL8180
 *
 * Copyright 2007 Andrea Merello <andrea.merello@gmail.com>
 *
 * 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/pci.h>
#include <linux/delay.h>
#include <net/mac80211.h>

#include "rtl8180.h"
#include "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); }

Contributors

PersonTokensPropCommitsCommitProp
Michael Wu137100.00%1100.00%
Total137100.00%1100.00%


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); }

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PersonTokensPropCommitsCommitProp
Michael Wu59100.00%1100.00%
Total59100.00%1100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
John W. Linville29100.00%1100.00%
Total29100.00%1100.00%


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->chandef.chan->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); }

Contributors

PersonTokensPropCommitsCommitProp
Michael Wu11888.06%125.00%
Johannes Berg128.96%125.00%
Karl Beldan32.24%125.00%
Andrea Merello10.75%125.00%
Total134100.00%4100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
Michael Wu80100.00%1100.00%
Total80100.00%1100.00%


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); }

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Michael Wu457100.00%1100.00%
Total457100.00%1100.00%

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, };

Overall Contributors

PersonTokensPropCommitsCommitProp
Michael Wu93194.61%114.29%
John W. Linville363.66%228.57%
Johannes Berg121.22%114.29%
Karl Beldan30.30%114.29%
Andrea Merello20.20%228.57%
Total984100.00%7100.00%
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