diff options
Diffstat (limited to 'gpxe/src/drivers/net/rtl818x/rtl8180_max2820.c')
| -rw-r--r-- | gpxe/src/drivers/net/rtl818x/rtl8180_max2820.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/gpxe/src/drivers/net/rtl818x/rtl8180_max2820.c b/gpxe/src/drivers/net/rtl818x/rtl8180_max2820.c deleted file mode 100644 index 7c9495f9..00000000 --- a/gpxe/src/drivers/net/rtl818x/rtl8180_max2820.c +++ /dev/null @@ -1,158 +0,0 @@ -/* - * 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 -}; |