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Release 4.11 drivers/net/wireless/realtek/rtl818x/rtl8180/sa2400.c

/*
 * Radio tuning for Philips SA2400 on RTL8180
 *
 * Copyright 2007 Andrea Merello <andrea.merello@gmail.com>
 *
 * 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/pci.h>
#include <linux/delay.h>
#include <net/mac80211.h>

#include "rtl8180.h"
#include "sa2400.h"


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 ieee80211_hw *dev, u8 addr, u32 data) { struct rtl8180_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; rtl818x_iowrite32(priv, (__le32 __iomem *) &priv->map->RFPinsOutput, phy_config); msleep(3); }

Contributors

PersonTokensPropCommitsCommitProp
Michael Wu79100.00%1100.00%
Total79100.00%1100.00%


static void sa2400_write_phy_antenna(struct ieee80211_hw *dev, short chan) { struct rtl8180_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; rtl8180_write_phy(dev, 0x10, ant); }

Contributors

PersonTokensPropCommitsCommitProp
Michael Wu59100.00%1100.00%
Total59100.00%1100.00%

static u8 sa2400_rf_rssi_map[] = { 0x64, 0x64, 0x63, 0x62, 0x61, 0x60, 0x5f, 0x5e, 0x5d, 0x5c, 0x5b, 0x5a, 0x57, 0x54, 0x52, 0x50, 0x4e, 0x4c, 0x4a, 0x48, 0x46, 0x44, 0x41, 0x3f, 0x3c, 0x3a, 0x37, 0x36, 0x36, 0x1c, 0x1c, 0x1b, 0x1b, 0x1a, 0x1a, 0x19, 0x19, 0x18, 0x18, 0x17, 0x17, 0x16, 0x16, 0x15, 0x15, 0x14, 0x14, 0x13, 0x13, 0x12, 0x12, 0x11, 0x11, 0x10, 0x10, 0x0f, 0x0f, 0x0e, 0x0e, 0x0d, 0x0d, 0x0c, 0x0c, 0x0b, 0x0b, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x07, 0x07, 0x06, 0x06, 0x05, 0x04, 0x03, 0x02, };
static u8 sa2400_rf_calc_rssi(u8 agc, u8 sq) { if (sq == 0x80) return 1; if (sq > 78) return 32; /* TODO: recalc sa2400_rf_rssi_map to avoid mult / div */ return 65 * sa2400_rf_rssi_map[sq] / 100; }

Contributors

PersonTokensPropCommitsCommitProp
John W. Linville41100.00%1100.00%
Total41100.00%1100.00%


static void sa2400_rf_set_channel(struct ieee80211_hw *dev, struct ieee80211_conf *conf) { struct rtl8180_priv *priv = dev->priv; int channel = ieee80211_frequency_to_channel(conf->chandef.chan->center_freq); u32 txpw = priv->channels[channel - 1].hw_value & 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); }

Contributors

PersonTokensPropCommitsCommitProp
Michael Wu10186.32%125.00%
Johannes Berg1210.26%125.00%
Karl Beldan32.56%125.00%
Andrea Merello10.85%125.00%
Total117100.00%4100.00%


static void sa2400_rf_stop(struct ieee80211_hw *dev) { write_sa2400(dev, 4, 0); }

Contributors

PersonTokensPropCommitsCommitProp
Michael Wu20100.00%1100.00%
Total20100.00%1100.00%


static void sa2400_rf_init(struct ieee80211_hw *dev) { struct rtl8180_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; } rtl8180_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) { rtl8180_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 sleep is required here, * we rely on the 3ms delay introduced in write_sa2400 */ write_sa2400(dev, 4, 0x19345); /* a 20us sleep is required here, * we rely on the 3ms delay introduced in write_sa2400 */ rtl818x_iowrite32(priv, &priv->map->TX_CONF, txconf); rtl8180_set_anaparam(priv, anaparam); } /* end new code */ write_sa2400(dev, 4, 0x19341 | firdac); /* RTX MODE */ /* baseband configuration */ rtl8180_write_phy(dev, 0, 0x98); rtl8180_write_phy(dev, 3, 0x38); rtl8180_write_phy(dev, 4, 0xe0); rtl8180_write_phy(dev, 5, 0x90); rtl8180_write_phy(dev, 6, 0x1a); rtl8180_write_phy(dev, 7, 0x64); sa2400_write_phy_antenna(dev, 1); rtl8180_write_phy(dev, 0x11, 0x80); if (rtl818x_ioread8(priv, &priv->map->CONFIG2) & RTL818X_CONFIG2_ANTENNA_DIV) rtl8180_write_phy(dev, 0x12, 0xc7); /* enable ant diversity */ else rtl8180_write_phy(dev, 0x12, 0x47); /* disable ant diversity */ rtl8180_write_phy(dev, 0x13, 0x90 | priv->csthreshold); rtl8180_write_phy(dev, 0x19, 0x0); rtl8180_write_phy(dev, 0x1a, 0xa0); }

Contributors

PersonTokensPropCommitsCommitProp
Michael Wu536100.00%1100.00%
Total536100.00%1100.00%

const struct rtl818x_rf_ops sa2400_rf_ops = { .name = "Philips", .init = sa2400_rf_init, .stop = sa2400_rf_stop, .set_chan = sa2400_rf_set_channel, .calc_rssi = sa2400_rf_calc_rssi, };

Overall Contributors

PersonTokensPropCommitsCommitProp
Michael Wu87479.17%114.29%
John W. Linville21319.29%228.57%
Johannes Berg121.09%114.29%
Karl Beldan30.27%114.29%
Andrea Merello20.18%228.57%
Total1104100.00%7100.00%
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