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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 23:49:40 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 23:49:40 +0300 |
commit | 0191b625ca5a46206d2fb862bb08f36f2fcb3b31 (patch) | |
tree | 454d1842b1833d976da62abcbd5c47521ebe9bd7 /drivers/net/wireless/rtl818x/rtl8180_max2820.c | |
parent | 54a696bd07c14d3b1192d03ce7269bc59b45209a (diff) | |
parent | eb56092fc168bf5af199d47af50c0d84a96db898 (diff) | |
download | linux-0191b625ca5a46206d2fb862bb08f36f2fcb3b31.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1429 commits)
net: Allow dependancies of FDDI & Tokenring to be modular.
igb: Fix build warning when DCA is disabled.
net: Fix warning fallout from recent NAPI interface changes.
gro: Fix potential use after free
sfc: If AN is enabled, always read speed/duplex from the AN advertising bits
sfc: When disabling the NIC, close the device rather than unregistering it
sfc: SFT9001: Add cable diagnostics
sfc: Add support for multiple PHY self-tests
sfc: Merge top-level functions for self-tests
sfc: Clean up PHY mode management in loopback self-test
sfc: Fix unreliable link detection in some loopback modes
sfc: Generate unique names for per-NIC workqueues
802.3ad: use standard ethhdr instead of ad_header
802.3ad: generalize out mac address initializer
802.3ad: initialize ports LACPDU from const initializer
802.3ad: remove typedef around ad_system
802.3ad: turn ports is_individual into a bool
802.3ad: turn ports is_enabled into a bool
802.3ad: make ntt bool
ixgbe: Fix set_ringparam in ixgbe to use the same memory pools.
...
Fixed trivial IPv4/6 address printing conflicts in fs/cifs/connect.c due
to the conversion to %pI (in this networking merge) and the addition of
doing IPv6 addresses (from the earlier merge of CIFS).
Diffstat (limited to 'drivers/net/wireless/rtl818x/rtl8180_max2820.c')
-rw-r--r-- | drivers/net/wireless/rtl818x/rtl8180_max2820.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtl818x/rtl8180_max2820.c b/drivers/net/wireless/rtl818x/rtl8180_max2820.c new file mode 100644 index 000000000000..6c825fd7f3b6 --- /dev/null +++ b/drivers/net/wireless/rtl818x/rtl8180_max2820.c @@ -0,0 +1,152 @@ +/* + * Radio tuning for Maxim max2820 on RTL8180 + * + * Copyright 2007 Andrea Merello <andreamrl@tiscali.it> + * + * 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 <linux/init.h> +#include <linux/pci.h> +#include <linux/delay.h> +#include <net/mac80211.h> + +#include "rtl8180.h" +#include "rtl8180_max2820.h" + +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 ieee80211_hw *dev, u8 addr, u32 data) +{ + struct rtl8180_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; + + rtl818x_iowrite32(priv, + (__le32 __iomem *) &priv->map->RFPinsOutput, phy_config); + + msleep(1); +} + +static void max2820_write_phy_antenna(struct ieee80211_hw *dev, short chan) +{ + struct rtl8180_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; + + rtl8180_write_phy(dev, 0x10, ant); +} + +static void max2820_rf_set_channel(struct ieee80211_hw *dev, + struct ieee80211_conf *conf) +{ + struct rtl8180_priv *priv = dev->priv; + int channel = conf ? + ieee80211_frequency_to_channel(conf->channel->center_freq) : 1; + unsigned int chan_idx = channel - 1; + u32 txpw = priv->channels[chan_idx].hw_value & 0xFF; + u32 chan = max2820_chan[chan_idx]; + + /* While philips SA2400 drive the PA bias from + * sa2400, for MAXIM we do this directly from BB */ + rtl8180_write_phy(dev, 3, txpw); + + max2820_write_phy_antenna(dev, channel); + write_max2820(dev, 3, chan); +} + +static void max2820_rf_stop(struct ieee80211_hw *dev) +{ + rtl8180_write_phy(dev, 3, 0x8); + write_max2820(dev, 1, 0); +} + + +static void max2820_rf_init(struct ieee80211_hw *dev) +{ + struct rtl8180_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 */ + rtl8180_write_phy(dev, 0, 0x88); /* sys1 */ + rtl8180_write_phy(dev, 3, 0x08); /* txagc */ + rtl8180_write_phy(dev, 4, 0xf8); /* lnadet */ + rtl8180_write_phy(dev, 5, 0x90); /* ifagcinit */ + rtl8180_write_phy(dev, 6, 0x1a); /* ifagclimit */ + rtl8180_write_phy(dev, 7, 0x64); /* ifagcdet */ + + max2820_write_phy_antenna(dev, 1); + + rtl8180_write_phy(dev, 0x11, 0x88); /* trl */ + + if (rtl818x_ioread8(priv, &priv->map->CONFIG2) & + RTL818X_CONFIG2_ANTENNA_DIV) + rtl8180_write_phy(dev, 0x12, 0xc7); + else + rtl8180_write_phy(dev, 0x12, 0x47); + + rtl8180_write_phy(dev, 0x13, 0x9b); + + rtl8180_write_phy(dev, 0x19, 0x0); /* CHESTLIM */ + rtl8180_write_phy(dev, 0x1a, 0x9f); /* CHSQLIM */ + + max2820_rf_set_channel(dev, NULL); +} + +const struct rtl818x_rf_ops max2820_rf_ops = { + .name = "Maxim", + .init = max2820_rf_init, + .stop = max2820_rf_stop, + .set_chan = max2820_rf_set_channel +}; |