diff options
Diffstat (limited to 'roms/ipxe/src/drivers/net/rtl818x/rtl8180_grf5101.c')
| -rw-r--r-- | roms/ipxe/src/drivers/net/rtl818x/rtl8180_grf5101.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/roms/ipxe/src/drivers/net/rtl818x/rtl8180_grf5101.c b/roms/ipxe/src/drivers/net/rtl818x/rtl8180_grf5101.c new file mode 100644 index 00000000..2b995030 --- /dev/null +++ b/roms/ipxe/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 iPXE, 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 <ipxe/pci.h> +#include <ipxe/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 +}; |