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[rtl818x] Add driver for Realtek 8180/8185 wireless cards
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Joshua Oreman authored and Michael Brown committed Aug 1, 2009
1 parent ce64398 commit 14ae602
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1 change: 1 addition & 0 deletions src/Makefile
Expand Up @@ -61,6 +61,7 @@ SRCDIRS += drivers/bus
SRCDIRS += drivers/net
SRCDIRS += drivers/net/e1000
SRCDIRS += drivers/net/phantom
SRCDIRS += drivers/net/rtl818x
SRCDIRS += drivers/block
SRCDIRS += drivers/nvs
SRCDIRS += drivers/bitbash
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17 changes: 17 additions & 0 deletions src/drivers/net/rtl818x/rtl8180.c
@@ -0,0 +1,17 @@
/* Realtek 8180 card: rtl818x driver + rtl8180 RF modules */

FILE_LICENCE(GPL2_OR_LATER);

#include <gpxe/pci.h>

REQUIRE_OBJECT(rtl818x);
REQUIRE_OBJECT(rtl8180_grf5101);
REQUIRE_OBJECT(rtl8180_max2820);
REQUIRE_OBJECT(rtl8180_sa2400);

static struct pci_device_id rtl8180_nics[] __unused = {
PCI_ROM(0x10ec, 0x8180, "rtl8180", "Realtek 8180", 0),
PCI_ROM(0x1799, 0x6001, "f5d6001", "Belkin F5D6001", 0),
PCI_ROM(0x1799, 0x6020, "f5d6020", "Belkin F5D6020", 0),
PCI_ROM(0x1186, 0x3300, "dwl510", "D-Link DWL-510", 0),
};
186 changes: 186 additions & 0 deletions src/drivers/net/rtl818x/rtl8180_grf5101.c
@@ -0,0 +1,186 @@
/*
* Radio tuning for GCT GRF5101 on RTL8180
*
* Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
*
* Modified slightly for gPXE, June 2009 by Joshua Oreman.
*
* 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 <unistd.h>
#include <gpxe/pci.h>
#include <gpxe/net80211.h>

#include "rtl818x.h"

FILE_LICENCE(GPL2_ONLY);

#define GRF5101_ANTENNA 0xA3

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 net80211_device *dev, u8 addr, u32 data)
{
struct rtl818x_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;

/* This was originally a 32-bit write to a typecast
RFPinsOutput, but gcc complained about aliasing rules. -JBO */
rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, phy_config & 0xffff);
rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, phy_config >> 16);

mdelay(3);
}

static void grf5101_write_phy_antenna(struct net80211_device *dev, short chan)
{
struct rtl818x_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;

rtl818x_write_phy(dev, 0x10, ant);
}

static void grf5101_rf_set_channel(struct net80211_device *dev,
struct net80211_channel *channelp)
{
struct rtl818x_priv *priv = dev->priv;
int channel = channelp->channel_nr;
u32 txpw = priv->txpower[channel - 1] & 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 net80211_device *dev)
{
struct rtl818x_priv *priv = dev->priv;
u32 anaparam;

anaparam = priv->anaparam;
anaparam &= 0x000fffff;
anaparam |= 0x3f900000;
rtl818x_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 net80211_device *dev)
{
struct rtl818x_priv *priv = dev->priv;

rtl818x_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 */
rtl818x_write_phy(dev, 0, 0xa8);
rtl818x_write_phy(dev, 3, 0x0);
rtl818x_write_phy(dev, 4, 0xc0);
rtl818x_write_phy(dev, 5, 0x90);
rtl818x_write_phy(dev, 6, 0x1e);
rtl818x_write_phy(dev, 7, 0x64);

grf5101_write_phy_antenna(dev, 1);

rtl818x_write_phy(dev, 0x11, 0x88);

if (rtl818x_ioread8(priv, &priv->map->CONFIG2) &
RTL818X_CONFIG2_ANTENNA_DIV)
rtl818x_write_phy(dev, 0x12, 0xc0); /* enable ant diversity */
else
rtl818x_write_phy(dev, 0x12, 0x40); /* disable ant diversity */

rtl818x_write_phy(dev, 0x13, 0x90 | priv->csthreshold);

rtl818x_write_phy(dev, 0x19, 0x0);
rtl818x_write_phy(dev, 0x1a, 0xa0);
rtl818x_write_phy(dev, 0x1b, 0x44);
}

struct rtl818x_rf_ops grf5101_rf_ops __rtl818x_rf_driver = {
.name = "GCT GRF5101",
.id = 5,
.init = grf5101_rf_init,
.stop = grf5101_rf_stop,
.set_chan = grf5101_rf_set_channel
};
158 changes: 158 additions & 0 deletions src/drivers/net/rtl818x/rtl8180_max2820.c
@@ -0,0 +1,158 @@
/*
* Radio tuning for Maxim max2820 on RTL8180
*
* Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
*
* Modified slightly for gPXE, June 2009 by Joshua Oreman.
*
* 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 <unistd.h>
#include <gpxe/pci.h>
#include <gpxe/net80211.h>

#include "rtl818x.h"

FILE_LICENCE(GPL2_ONLY);

#define MAXIM_ANTENNA 0xb3

static const u32 max2820_chan[] = {
12, /* CH 1 */
17,
22,
27,
32,
37,
42,
47,
52,
57,
62,
67,
72,
84, /* CH 14 */
};

static void write_max2820(struct net80211_device *dev, u8 addr, u32 data)
{
struct rtl818x_priv *priv = dev->priv;
u32 phy_config;

phy_config = 0x90 + (data & 0xf);
phy_config <<= 16;
phy_config += addr;
phy_config <<= 8;
phy_config += (data >> 4) & 0xff;

/* This was originally a 32-bit write to a typecast
RFPinsOutput, but gcc complained about aliasing rules. -JBO */
rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, phy_config & 0xffff);
rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, phy_config >> 16);

mdelay(1);
}

static void max2820_write_phy_antenna(struct net80211_device *dev, short chan)
{
struct rtl818x_priv *priv = dev->priv;
u8 ant;

ant = MAXIM_ANTENNA;
if (priv->rfparam & RF_PARAM_ANTBDEFAULT)
ant |= BB_ANTENNA_B;
if (chan == 14)
ant |= BB_ANTATTEN_CHAN14;

rtl818x_write_phy(dev, 0x10, ant);
}

static void max2820_rf_set_channel(struct net80211_device *dev,
struct net80211_channel *channelp)
{
struct rtl818x_priv *priv = dev->priv;
int channel = channelp->channel_nr;
unsigned int chan_idx = channel - 1;
u32 txpw = priv->txpower[chan_idx] & 0xFF;
u32 chan = max2820_chan[chan_idx];

/* While philips SA2400 drive the PA bias from
* sa2400, for MAXIM we do this directly from BB */
rtl818x_write_phy(dev, 3, txpw);

max2820_write_phy_antenna(dev, channel);
write_max2820(dev, 3, chan);
}

static void max2820_rf_stop(struct net80211_device *dev)
{
rtl818x_write_phy(dev, 3, 0x8);
write_max2820(dev, 1, 0);
}


static void max2820_rf_init(struct net80211_device *dev)
{
struct rtl818x_priv *priv = dev->priv;

/* MAXIM from netbsd driver */
write_max2820(dev, 0, 0x007); /* test mode as indicated in datasheet */
write_max2820(dev, 1, 0x01e); /* enable register */
write_max2820(dev, 2, 0x001); /* synt register */

max2820_rf_set_channel(dev, NULL);

write_max2820(dev, 4, 0x313); /* rx register */

/* PA is driven directly by the BB, we keep the MAXIM bias
* at the highest value in case that setting it to lower
* values may introduce some further attenuation somewhere..
*/
write_max2820(dev, 5, 0x00f);

/* baseband configuration */
rtl818x_write_phy(dev, 0, 0x88); /* sys1 */
rtl818x_write_phy(dev, 3, 0x08); /* txagc */
rtl818x_write_phy(dev, 4, 0xf8); /* lnadet */
rtl818x_write_phy(dev, 5, 0x90); /* ifagcinit */
rtl818x_write_phy(dev, 6, 0x1a); /* ifagclimit */
rtl818x_write_phy(dev, 7, 0x64); /* ifagcdet */

max2820_write_phy_antenna(dev, 1);

rtl818x_write_phy(dev, 0x11, 0x88); /* trl */

if (rtl818x_ioread8(priv, &priv->map->CONFIG2) &
RTL818X_CONFIG2_ANTENNA_DIV)
rtl818x_write_phy(dev, 0x12, 0xc7);
else
rtl818x_write_phy(dev, 0x12, 0x47);

rtl818x_write_phy(dev, 0x13, 0x9b);

rtl818x_write_phy(dev, 0x19, 0x0); /* CHESTLIM */
rtl818x_write_phy(dev, 0x1a, 0x9f); /* CHSQLIM */

max2820_rf_set_channel(dev, NULL);
}

struct rtl818x_rf_ops max2820_rf_ops __rtl818x_rf_driver = {
.name = "Maxim max2820",
.id = 4,
.init = max2820_rf_init,
.stop = max2820_rf_stop,
.set_chan = max2820_rf_set_channel
};

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