diff options
Diffstat (limited to 'contrib/syslinux-4.02/gpxe/src/drivers/net/rtl818x/rtl8180_sa2400.c')
| -rw-r--r-- | contrib/syslinux-4.02/gpxe/src/drivers/net/rtl818x/rtl8180_sa2400.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/gpxe/src/drivers/net/rtl818x/rtl8180_sa2400.c b/contrib/syslinux-4.02/gpxe/src/drivers/net/rtl818x/rtl8180_sa2400.c new file mode 100644 index 0000000..bcfd397 --- /dev/null +++ b/contrib/syslinux-4.02/gpxe/src/drivers/net/rtl818x/rtl8180_sa2400.c @@ -0,0 +1,217 @@ +/* + * Radio tuning for Philips SA2400 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 SA2400_ANTENNA 0x91 +#define SA2400_DIG_ANAPARAM_PWR1_ON 0x8 +#define SA2400_ANA_ANAPARAM_PWR1_ON 0x28 +#define SA2400_ANAPARAM_PWR0_ON 0x3 + +/* RX sensitivity in dbm */ +#define SA2400_MAX_SENS 85 + +#define SA2400_REG4_FIRDAC_SHIFT 7 + +static const u32 sa2400_chan[] = { + 0x00096c, /* ch1 */ + 0x080970, + 0x100974, + 0x180978, + 0x000980, + 0x080984, + 0x100988, + 0x18098c, + 0x000994, + 0x080998, + 0x10099c, + 0x1809a0, + 0x0009a8, + 0x0009b4, /* ch 14 */ +}; + +static void write_sa2400(struct net80211_device *dev, u8 addr, u32 data) +{ + struct rtl818x_priv *priv = dev->priv; + u32 phy_config; + + /* MAC will bang bits to the sa2400. sw 3-wire is NOT used */ + phy_config = 0xb0000000; + + phy_config |= ((u32)(addr & 0xf)) << 24; + phy_config |= data & 0xffffff; + + /* 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 sa2400_write_phy_antenna(struct net80211_device *dev, short chan) +{ + struct rtl818x_priv *priv = dev->priv; + u8 ant = SA2400_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 sa2400_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 = sa2400_chan[channel - 1]; + + write_sa2400(dev, 7, txpw); + + sa2400_write_phy_antenna(dev, channel); + + write_sa2400(dev, 0, chan); + write_sa2400(dev, 1, 0xbb50); + write_sa2400(dev, 2, 0x80); + write_sa2400(dev, 3, 0); +} + +static void sa2400_rf_stop(struct net80211_device *dev) +{ + write_sa2400(dev, 4, 0); +} + +static void sa2400_rf_init(struct net80211_device *dev) +{ + struct rtl818x_priv *priv = dev->priv; + u32 anaparam, txconf; + u8 firdac; + int analogphy = priv->rfparam & RF_PARAM_ANALOGPHY; + + anaparam = priv->anaparam; + anaparam &= ~(1 << ANAPARAM_TXDACOFF_SHIFT); + anaparam &= ~ANAPARAM_PWR1_MASK; + anaparam &= ~ANAPARAM_PWR0_MASK; + + if (analogphy) { + anaparam |= SA2400_ANA_ANAPARAM_PWR1_ON << ANAPARAM_PWR1_SHIFT; + firdac = 0; + } else { + anaparam |= (SA2400_DIG_ANAPARAM_PWR1_ON << ANAPARAM_PWR1_SHIFT); + anaparam |= (SA2400_ANAPARAM_PWR0_ON << ANAPARAM_PWR0_SHIFT); + firdac = 1 << SA2400_REG4_FIRDAC_SHIFT; + } + + rtl818x_set_anaparam(priv, anaparam); + + write_sa2400(dev, 0, sa2400_chan[0]); + write_sa2400(dev, 1, 0xbb50); + write_sa2400(dev, 2, 0x80); + write_sa2400(dev, 3, 0); + write_sa2400(dev, 4, 0x19340 | firdac); + write_sa2400(dev, 5, 0x1dfb | (SA2400_MAX_SENS - 54) << 15); + write_sa2400(dev, 4, 0x19348 | firdac); /* calibrate VCO */ + + if (!analogphy) + write_sa2400(dev, 4, 0x1938c); /*???*/ + + write_sa2400(dev, 4, 0x19340 | firdac); + + write_sa2400(dev, 0, sa2400_chan[0]); + write_sa2400(dev, 1, 0xbb50); + write_sa2400(dev, 2, 0x80); + write_sa2400(dev, 3, 0); + write_sa2400(dev, 4, 0x19344 | firdac); /* calibrate filter */ + + /* new from rtl8180 embedded driver (rtl8181 project) */ + write_sa2400(dev, 6, 0x13ff | (1 << 23)); /* MANRX */ + write_sa2400(dev, 8, 0); /* VCO */ + + if (analogphy) { + rtl818x_set_anaparam(priv, anaparam | + (1 << ANAPARAM_TXDACOFF_SHIFT)); + + txconf = rtl818x_ioread32(priv, &priv->map->TX_CONF); + rtl818x_iowrite32(priv, &priv->map->TX_CONF, + txconf | RTL818X_TX_CONF_LOOPBACK_CONT); + + write_sa2400(dev, 4, 0x19341); /* calibrates DC */ + + /* a 5us delay is required here, + * we rely on the 3ms delay introduced in write_sa2400 */ + + write_sa2400(dev, 4, 0x19345); + + /* a 20us delay is required here, + * we rely on the 3ms delay introduced in write_sa2400 */ + + rtl818x_iowrite32(priv, &priv->map->TX_CONF, txconf); + + rtl818x_set_anaparam(priv, anaparam); + } + /* end new code */ + + write_sa2400(dev, 4, 0x19341 | firdac); /* RTX MODE */ + + /* baseband configuration */ + rtl818x_write_phy(dev, 0, 0x98); + rtl818x_write_phy(dev, 3, 0x38); + rtl818x_write_phy(dev, 4, 0xe0); + rtl818x_write_phy(dev, 5, 0x90); + rtl818x_write_phy(dev, 6, 0x1a); + rtl818x_write_phy(dev, 7, 0x64); + + sa2400_write_phy_antenna(dev, 1); + + rtl818x_write_phy(dev, 0x11, 0x80); + + if (rtl818x_ioread8(priv, &priv->map->CONFIG2) & + RTL818X_CONFIG2_ANTENNA_DIV) + rtl818x_write_phy(dev, 0x12, 0xc7); /* enable ant diversity */ + else + rtl818x_write_phy(dev, 0x12, 0x47); /* disable ant diversity */ + + rtl818x_write_phy(dev, 0x13, 0x90 | priv->csthreshold); + + rtl818x_write_phy(dev, 0x19, 0x0); + rtl818x_write_phy(dev, 0x1a, 0xa0); +} + +struct rtl818x_rf_ops sa2400_rf_ops __rtl818x_rf_driver = { + .name = "Philips SA2400", + .id = 3, + .init = sa2400_rf_init, + .stop = sa2400_rf_stop, + .set_chan = sa2400_rf_set_channel +}; |