mirror of
https://github.com/ipxe/ipxe
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8406115834
Access to the gpxe.org and etherboot.org domains and associated resources has been revoked by the registrant of the domain. Work around this problem by renaming project from gPXE to iPXE, and updating URLs to match. Also update README, LOG and COPYRIGHTS to remove obsolete information. Signed-off-by: Michael Brown <mcb30@ipxe.org>
187 lines
5.0 KiB
C
187 lines
5.0 KiB
C
/*
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* Radio tuning for GCT GRF5101 on RTL8180
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*
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* Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
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*
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* Modified slightly for iPXE, June 2009 by Joshua Oreman.
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*
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* Code from the BSD driver and the rtl8181 project have been
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* very useful to understand certain things
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*
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* I want to thanks the Authors of such projects and the Ndiswrapper
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* project Authors.
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*
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* A special Big Thanks also is for all people who donated me cards,
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* making possible the creation of the original rtl8180 driver
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* from which this code is derived!
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <unistd.h>
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#include <ipxe/pci.h>
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#include <ipxe/net80211.h>
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#include "rtl818x.h"
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FILE_LICENCE(GPL2_ONLY);
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#define GRF5101_ANTENNA 0xA3
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static const int grf5101_encode[] = {
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0x0, 0x8, 0x4, 0xC,
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0x2, 0xA, 0x6, 0xE,
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0x1, 0x9, 0x5, 0xD,
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0x3, 0xB, 0x7, 0xF
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};
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static void write_grf5101(struct net80211_device *dev, u8 addr, u32 data)
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{
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struct rtl818x_priv *priv = dev->priv;
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u32 phy_config;
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phy_config = grf5101_encode[(data >> 8) & 0xF];
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phy_config |= grf5101_encode[(data >> 4) & 0xF] << 4;
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phy_config |= grf5101_encode[data & 0xF] << 8;
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phy_config |= grf5101_encode[(addr >> 1) & 0xF] << 12;
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phy_config |= (addr & 1) << 16;
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phy_config |= grf5101_encode[(data & 0xf000) >> 12] << 24;
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/* MAC will bang bits to the chip */
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phy_config |= 0x90000000;
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/* This was originally a 32-bit write to a typecast
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RFPinsOutput, but gcc complained about aliasing rules. -JBO */
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rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, phy_config & 0xffff);
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rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, phy_config >> 16);
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mdelay(3);
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}
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static void grf5101_write_phy_antenna(struct net80211_device *dev, short chan)
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{
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struct rtl818x_priv *priv = dev->priv;
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u8 ant = GRF5101_ANTENNA;
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if (priv->rfparam & RF_PARAM_ANTBDEFAULT)
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ant |= BB_ANTENNA_B;
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if (chan == 14)
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ant |= BB_ANTATTEN_CHAN14;
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rtl818x_write_phy(dev, 0x10, ant);
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}
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static void grf5101_rf_set_channel(struct net80211_device *dev,
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struct net80211_channel *channelp)
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{
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struct rtl818x_priv *priv = dev->priv;
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int channel = channelp->channel_nr;
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u32 txpw = priv->txpower[channel - 1] & 0xFF;
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u32 chan = channel - 1;
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/* set TX power */
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write_grf5101(dev, 0x15, 0x0);
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write_grf5101(dev, 0x06, txpw);
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write_grf5101(dev, 0x15, 0x10);
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write_grf5101(dev, 0x15, 0x0);
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/* set frequency */
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write_grf5101(dev, 0x07, 0x0);
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write_grf5101(dev, 0x0B, chan);
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write_grf5101(dev, 0x07, 0x1000);
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grf5101_write_phy_antenna(dev, channel);
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}
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static void grf5101_rf_stop(struct net80211_device *dev)
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{
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struct rtl818x_priv *priv = dev->priv;
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u32 anaparam;
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anaparam = priv->anaparam;
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anaparam &= 0x000fffff;
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anaparam |= 0x3f900000;
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rtl818x_set_anaparam(priv, anaparam);
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write_grf5101(dev, 0x07, 0x0);
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write_grf5101(dev, 0x1f, 0x45);
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write_grf5101(dev, 0x1f, 0x5);
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write_grf5101(dev, 0x00, 0x8e4);
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}
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static void grf5101_rf_init(struct net80211_device *dev)
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{
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struct rtl818x_priv *priv = dev->priv;
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rtl818x_set_anaparam(priv, priv->anaparam);
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write_grf5101(dev, 0x1f, 0x0);
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write_grf5101(dev, 0x1f, 0x0);
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write_grf5101(dev, 0x1f, 0x40);
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write_grf5101(dev, 0x1f, 0x60);
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write_grf5101(dev, 0x1f, 0x61);
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write_grf5101(dev, 0x1f, 0x61);
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write_grf5101(dev, 0x00, 0xae4);
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write_grf5101(dev, 0x1f, 0x1);
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write_grf5101(dev, 0x1f, 0x41);
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write_grf5101(dev, 0x1f, 0x61);
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write_grf5101(dev, 0x01, 0x1a23);
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write_grf5101(dev, 0x02, 0x4971);
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write_grf5101(dev, 0x03, 0x41de);
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write_grf5101(dev, 0x04, 0x2d80);
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write_grf5101(dev, 0x05, 0x68ff); /* 0x61ff original value */
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write_grf5101(dev, 0x06, 0x0);
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write_grf5101(dev, 0x07, 0x0);
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write_grf5101(dev, 0x08, 0x7533);
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write_grf5101(dev, 0x09, 0xc401);
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write_grf5101(dev, 0x0a, 0x0);
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write_grf5101(dev, 0x0c, 0x1c7);
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write_grf5101(dev, 0x0d, 0x29d3);
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write_grf5101(dev, 0x0e, 0x2e8);
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write_grf5101(dev, 0x10, 0x192);
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write_grf5101(dev, 0x11, 0x248);
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write_grf5101(dev, 0x12, 0x0);
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write_grf5101(dev, 0x13, 0x20c4);
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write_grf5101(dev, 0x14, 0xf4fc);
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write_grf5101(dev, 0x15, 0x0);
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write_grf5101(dev, 0x16, 0x1500);
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write_grf5101(dev, 0x07, 0x1000);
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/* baseband configuration */
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rtl818x_write_phy(dev, 0, 0xa8);
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rtl818x_write_phy(dev, 3, 0x0);
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rtl818x_write_phy(dev, 4, 0xc0);
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rtl818x_write_phy(dev, 5, 0x90);
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rtl818x_write_phy(dev, 6, 0x1e);
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rtl818x_write_phy(dev, 7, 0x64);
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grf5101_write_phy_antenna(dev, 1);
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rtl818x_write_phy(dev, 0x11, 0x88);
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if (rtl818x_ioread8(priv, &priv->map->CONFIG2) &
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RTL818X_CONFIG2_ANTENNA_DIV)
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rtl818x_write_phy(dev, 0x12, 0xc0); /* enable ant diversity */
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else
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rtl818x_write_phy(dev, 0x12, 0x40); /* disable ant diversity */
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rtl818x_write_phy(dev, 0x13, 0x90 | priv->csthreshold);
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rtl818x_write_phy(dev, 0x19, 0x0);
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rtl818x_write_phy(dev, 0x1a, 0xa0);
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rtl818x_write_phy(dev, 0x1b, 0x44);
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}
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struct rtl818x_rf_ops grf5101_rf_ops __rtl818x_rf_driver = {
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.name = "GCT GRF5101",
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.id = 5,
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.init = grf5101_rf_init,
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.stop = grf5101_rf_stop,
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.set_chan = grf5101_rf_set_channel
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};
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