b43: Implement dynamic PHY API

This patch implements a dynamic "ops" based PHY API.
This is needed in order to conveniently support future PHY types
to avoid the "switch"-hell.

This patch does not change any functionality. It just moves lots
of code from one place to another and adjusts it for the changed
data structures.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/b43/Makefile

 b43-y				+= main.o
 b43-y				+= tables.o
 b43-$(CONFIG_B43_NPHY)		+= tables_nphy.o
-b43-y				+= phy.o
+b43-y				+= phy_common.o
+b43-y				+= phy_g.o
+b43-y				+= phy_a.o
 b43-$(CONFIG_B43_NPHY)		+= nphy.o
 b43-y				+= sysfs.o
 b43-y				+= xmit.o

drivers/net/wireless/b43/b43.h

@@ -12,7 +12,7 @@
 #include "leds.h"
 #include "rfkill.h"
 #include "lo.h"
-#include "phy.h"
+#include "phy_common.h"
 
 
 /* The unique identifier of the firmware that's officially supported by
@@ -508,122 +508,6 @@ struct b43_iv {
 } __attribute__((__packed__));
 
 
-struct b43_phy {
-	/* Band support flags. */
-	bool supports_2ghz;
-	bool supports_5ghz;
-
-	/* GMODE bit enabled? */
-	bool gmode;
-
-	/* Analog Type */
-	u8 analog;
-	/* B43_PHYTYPE_ */
-	u8 type;
-	/* PHY revision number. */
-	u8 rev;
-
-	/* Radio versioning */
-	u16 radio_manuf;	/* Radio manufacturer */
-	u16 radio_ver;		/* Radio version */
-	u8 radio_rev;		/* Radio revision */
-
-	bool dyn_tssi_tbl;	/* tssi2dbm is kmalloc()ed. */
-
-	/* ACI (adjacent channel interference) flags. */
-	bool aci_enable;
-	bool aci_wlan_automatic;
-	bool aci_hw_rssi;
-
-	/* Radio switched on/off */
-	bool radio_on;
-	struct {
-		/* Values saved when turning the radio off.
-		 * They are needed when turning it on again. */
-		bool valid;
-		u16 rfover;
-		u16 rfoverval;
-	} radio_off_context;
-
-	u16 minlowsig[2];
-	u16 minlowsigpos[2];
-
-	/* TSSI to dBm table in use */
-	const s8 *tssi2dbm;
-	/* Target idle TSSI */
-	int tgt_idle_tssi;
-	/* Current idle TSSI */
-	int cur_idle_tssi;
-
-	/* LocalOscillator control values. */
-	struct b43_txpower_lo_control *lo_control;
-	/* Values from b43_calc_loopback_gain() */
-	s16 max_lb_gain;	/* Maximum Loopback gain in hdB */
-	s16 trsw_rx_gain;	/* TRSW RX gain in hdB */
-	s16 lna_lod_gain;	/* LNA lod */
-	s16 lna_gain;		/* LNA */
-	s16 pga_gain;		/* PGA */
-
-	/* Desired TX power level (in dBm).
-	 * This is set by the user and adjusted in b43_phy_xmitpower(). */
-	u8 power_level;
-	/* A-PHY TX Power control value. */
-	u16 txpwr_offset;
-
-	/* Current TX power level attenuation control values */
-	struct b43_bbatt bbatt;
-	struct b43_rfatt rfatt;
-	u8 tx_control;		/* B43_TXCTL_XXX */
-
-	/* Hardware Power Control enabled? */
-	bool hardware_power_control;
-
-	/* Current Interference Mitigation mode */
-	int interfmode;
-	/* Stack of saved values from the Interference Mitigation code.
-	 * Each value in the stack is layed out as follows:
-	 * bit 0-11:  offset
-	 * bit 12-15: register ID
-	 * bit 16-32: value
-	 * register ID is: 0x1 PHY, 0x2 Radio, 0x3 ILT
-	 */
-#define B43_INTERFSTACK_SIZE	26
-	u32 interfstack[B43_INTERFSTACK_SIZE];	//FIXME: use a data structure
-
-	/* Saved values from the NRSSI Slope calculation */
-	s16 nrssi[2];
-	s32 nrssislope;
-	/* In memory nrssi lookup table. */
-	s8 nrssi_lt[64];
-
-	/* current channel */
-	u8 channel;
-
-	u16 lofcal;
-
-	u16 initval;		//FIXME rename?
-
-	/* PHY TX errors counter. */
-	atomic_t txerr_cnt;
-
-	/* The device does address auto increment for the OFDM tables.
-	 * We cache the previously used address here and omit the address
-	 * write on the next table access, if possible. */
-	u16 ofdmtab_addr; /* The address currently set in hardware. */
-	enum { /* The last data flow direction. */
-		B43_OFDMTAB_DIRECTION_UNKNOWN = 0,
-		B43_OFDMTAB_DIRECTION_READ,
-		B43_OFDMTAB_DIRECTION_WRITE,
-	} ofdmtab_addr_direction;
-
-#if B43_DEBUG
-	/* Manual TX-power control enabled? */
-	bool manual_txpower_control;
-	/* PHY registers locked by b43_phy_lock()? */
-	bool phy_locked;
-#endif /* B43_DEBUG */
-};
-
 /* Data structures for DMA transmission, per 80211 core. */
 struct b43_dma {
 	struct b43_dmaring *tx_ring_AC_BK; /* Background */
@@ -908,6 +792,15 @@ static inline int b43_is_mode(struct b43_wl *wl, int type)
 	return (wl->operating && wl->if_type == type);
 }
 
+/**
+ * b43_current_band - Returns the currently used band.
+ * Returns one of IEEE80211_BAND_2GHZ and IEEE80211_BAND_5GHZ.
+ */
+static inline enum ieee80211_band b43_current_band(struct b43_wl *wl)
+{
+	return wl->hw->conf.channel->band;
+}
+
 static inline u16 b43_read16(struct b43_wldev *dev, u16 offset)
 {
 	return ssb_read16(dev->dev, offset);

drivers/net/wireless/b43/debugfs.c

@@ -443,76 +443,6 @@ static ssize_t txstat_read_file(struct b43_wldev *dev,
 	return count;
 }
 
-static ssize_t txpower_g_read_file(struct b43_wldev *dev,
-				   char *buf, size_t bufsize)
-{
-	ssize_t count = 0;
-
-	if (dev->phy.type != B43_PHYTYPE_G) {
-		fappend("Device is not a G-PHY\n");
-		goto out;
-	}
-	fappend("Control:               %s\n", dev->phy.manual_txpower_control ?
-		"MANUAL" : "AUTOMATIC");
-	fappend("Baseband attenuation:  %u\n", dev->phy.bbatt.att);
-	fappend("Radio attenuation:     %u\n", dev->phy.rfatt.att);
-	fappend("TX Mixer Gain:         %s\n",
-		(dev->phy.tx_control & B43_TXCTL_TXMIX) ? "ON" : "OFF");
-	fappend("PA Gain 2dB:           %s\n",
-		(dev->phy.tx_control & B43_TXCTL_PA2DB) ? "ON" : "OFF");
-	fappend("PA Gain 3dB:           %s\n",
-		(dev->phy.tx_control & B43_TXCTL_PA3DB) ? "ON" : "OFF");
-	fappend("\n\n");
-	fappend("You can write to this file:\n");
-	fappend("Writing \"auto\" enables automatic txpower control.\n");
-	fappend
-	    ("Writing the attenuation values as \"bbatt rfatt txmix pa2db pa3db\" "
-	     "enables manual txpower control.\n");
-	fappend("Example: 5 4 0 0 1\n");
-	fappend("Enables manual control with Baseband attenuation 5, "
-		"Radio attenuation 4, No TX Mixer Gain, "
-		"No PA Gain 2dB, With PA Gain 3dB.\n");
-out:
-	return count;
-}
-
-static int txpower_g_write_file(struct b43_wldev *dev,
-				const char *buf, size_t count)
-{
-	if (dev->phy.type != B43_PHYTYPE_G)
-		return -ENODEV;
-	if ((count >= 4) && (memcmp(buf, "auto", 4) == 0)) {
-		/* Automatic control */
-		dev->phy.manual_txpower_control = 0;
-		b43_phy_xmitpower(dev);
-	} else {
-		int bbatt = 0, rfatt = 0, txmix = 0, pa2db = 0, pa3db = 0;
-		/* Manual control */
-		if (sscanf(buf, "%d %d %d %d %d", &bbatt, &rfatt,
-			   &txmix, &pa2db, &pa3db) != 5)
-			return -EINVAL;
-		b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
-		dev->phy.manual_txpower_control = 1;
-		dev->phy.bbatt.att = bbatt;
-		dev->phy.rfatt.att = rfatt;
-		dev->phy.tx_control = 0;
-		if (txmix)
-			dev->phy.tx_control |= B43_TXCTL_TXMIX;
-		if (pa2db)
-			dev->phy.tx_control |= B43_TXCTL_PA2DB;
-		if (pa3db)
-			dev->phy.tx_control |= B43_TXCTL_PA3DB;
-		b43_phy_lock(dev);
-		b43_radio_lock(dev);
-		b43_set_txpower_g(dev, &dev->phy.bbatt,
-				  &dev->phy.rfatt, dev->phy.tx_control);
-		b43_radio_unlock(dev);
-		b43_phy_unlock(dev);
-	}
-
-	return 0;
-}
-
 /* wl->irq_lock is locked */
 static int restart_write_file(struct b43_wldev *dev,
 			      const char *buf, size_t count)
@@ -560,7 +490,7 @@ static ssize_t loctls_read_file(struct b43_wldev *dev,
 		err = -ENODEV;
 		goto out;
 	}
-	lo = phy->lo_control;
+	lo = phy->g->lo_control;
 	fappend("-- Local Oscillator calibration data --\n\n");
 	fappend("HW-power-control enabled: %d\n",
 		dev->phy.hardware_power_control);
@@ -578,8 +508,8 @@ static ssize_t loctls_read_file(struct b43_wldev *dev,
 	list_for_each_entry(cal, &lo->calib_list, list) {
 		bool active;
 
-		active = (b43_compare_bbatt(&cal->bbatt, &phy->bbatt) &&
-			  b43_compare_rfatt(&cal->rfatt, &phy->rfatt));
+		active = (b43_compare_bbatt(&cal->bbatt, &phy->g->bbatt) &&
+			  b43_compare_rfatt(&cal->rfatt, &phy->g->rfatt));
 		fappend("BB(%d), RF(%d,%d)  ->  I=%d, Q=%d  "
 			"(expires in %lu sec)%s\n",
 			cal->bbatt.att,
@@ -763,7 +693,6 @@ B43_DEBUGFS_FOPS(mmio32read, mmio32read__read_file, mmio32read__write_file, 1);
 B43_DEBUGFS_FOPS(mmio32write, NULL, mmio32write__write_file, 1);
 B43_DEBUGFS_FOPS(tsf, tsf_read_file, tsf_write_file, 1);
 B43_DEBUGFS_FOPS(txstat, txstat_read_file, NULL, 0);
-B43_DEBUGFS_FOPS(txpower_g, txpower_g_read_file, txpower_g_write_file, 0);
 B43_DEBUGFS_FOPS(restart, NULL, restart_write_file, 1);
 B43_DEBUGFS_FOPS(loctls, loctls_read_file, NULL, 0);
 
@@ -877,7 +806,6 @@ void b43_debugfs_add_device(struct b43_wldev *dev)
 	ADD_FILE(mmio32write, 0200);
 	ADD_FILE(tsf, 0600);
 	ADD_FILE(txstat, 0400);
-	ADD_FILE(txpower_g, 0600);
 	ADD_FILE(restart, 0200);
 	ADD_FILE(loctls, 0400);
 
@@ -907,7 +835,6 @@ void b43_debugfs_remove_device(struct b43_wldev *dev)
 	debugfs_remove(e->file_mmio32write.dentry);
 	debugfs_remove(e->file_tsf.dentry);
 	debugfs_remove(e->file_txstat.dentry);
-	debugfs_remove(e->file_txpower_g.dentry);
 	debugfs_remove(e->file_restart.dentry);
 	debugfs_remove(e->file_loctls.dentry);
 

drivers/net/wireless/b43/lo.h

 #ifndef B43_LO_H_
 #define B43_LO_H_
 
-#include "phy.h"
+/* G-PHY Local Oscillator */
+
+#include "phy_g.h"
 
 struct b43_wldev;
 

drivers/net/wireless/b43/nphy.c

@@ -81,9 +81,8 @@ static void b43_nphy_tx_power_fix(struct b43_wldev *dev)
 	//TODO
 }
 
-/* Tune the hardware to a new channel. Don't call this directly.
- * Use b43_radio_selectchannel() */
-int b43_nphy_selectchannel(struct b43_wldev *dev, u8 channel)
+/* Tune the hardware to a new channel. */
+static int nphy_channel_switch(struct b43_wldev *dev, unsigned int channel)
 {
 	const struct b43_nphy_channeltab_entry *tabent;
 
@@ -162,7 +161,7 @@ static void b43_radio_init2055_post(struct b43_wldev *dev)
 	msleep(1);
 	b43_radio_mask(dev, B2055_CAL_LPOCTL, 0xFF7F);
 	msleep(1);
-	b43_radio_selectchannel(dev, dev->phy.channel, 0);
+	nphy_channel_switch(dev, dev->phy.channel);
 	b43_radio_write16(dev, B2055_C1_RX_BB_LPF, 0x9);
 	b43_radio_write16(dev, B2055_C2_RX_BB_LPF, 0x9);
 	b43_radio_write16(dev, B2055_C1_RX_BB_MIDACHP, 0x83);
@@ -484,3 +483,139 @@ int b43_phy_initn(struct b43_wldev *dev)
 	b43err(dev->wl, "IEEE 802.11n devices are not supported, yet.\n");
 	return 0;
 }
+
+static int b43_nphy_op_allocate(struct b43_wldev *dev)
+{
+	struct b43_phy_n *nphy;
+
+	nphy = kzalloc(sizeof(*nphy), GFP_KERNEL);
+	if (!nphy)
+		return -ENOMEM;
+	dev->phy.n = nphy;
+
+	//TODO init struct b43_phy_n
+
+	return 0;
+}
+
+static int b43_nphy_op_init(struct b43_wldev *dev)
+{
+	struct b43_phy_n *nphy = dev->phy.n;
+	int err;
+
+	err = b43_phy_initn(dev);
+	if (err)
+		return err;
+	nphy->initialised = 1;
+
+	return 0;
+}
+
+static void b43_nphy_op_exit(struct b43_wldev *dev)
+{
+	struct b43_phy_n *nphy = dev->phy.n;
+
+	if (nphy->initialised) {
+		//TODO
+		nphy->initialised = 0;
+	}
+	//TODO
+	kfree(nphy);
+	dev->phy.n = NULL;
+}
+
+static inline void check_phyreg(struct b43_wldev *dev, u16 offset)
+{
+#if B43_DEBUG
+	if ((offset & B43_PHYROUTE) == B43_PHYROUTE_OFDM_GPHY) {
+		/* OFDM registers are onnly available on A/G-PHYs */
+		b43err(dev->wl, "Invalid OFDM PHY access at "
+		       "0x%04X on N-PHY\n", offset);
+		dump_stack();
+	}
+	if ((offset & B43_PHYROUTE) == B43_PHYROUTE_EXT_GPHY) {
+		/* Ext-G registers are only available on G-PHYs */
+		b43err(dev->wl, "Invalid EXT-G PHY access at "
+		       "0x%04X on N-PHY\n", offset);
+		dump_stack();
+	}
+#endif /* B43_DEBUG */
+}
+
+static u16 b43_nphy_op_read(struct b43_wldev *dev, u16 reg)
+{
+	check_phyreg(dev, reg);
+	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
+	return b43_read16(dev, B43_MMIO_PHY_DATA);
+}
+
+static void b43_nphy_op_write(struct b43_wldev *dev, u16 reg, u16 value)
+{
+	check_phyreg(dev, reg);
+	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
+	b43_write16(dev, B43_MMIO_PHY_DATA, value);
+}
+
+static u16 b43_nphy_op_radio_read(struct b43_wldev *dev, u16 reg)
+{
+	/* Register 1 is a 32-bit register. */
+	B43_WARN_ON(reg == 1);
+	/* N-PHY needs 0x100 for read access */
+	reg |= 0x100;
+
+	b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
+	return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
+}
+
+static void b43_nphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
+{
+	/* Register 1 is a 32-bit register. */
+	B43_WARN_ON(reg == 1);
+
+	b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
+	b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, value);
+}
+
+static void b43_nphy_op_software_rfkill(struct b43_wldev *dev,
+					enum rfkill_state state)
+{//TODO
+}
+
+static int b43_nphy_op_switch_channel(struct b43_wldev *dev,
+				      unsigned int new_channel)
+{
+	if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
+		if ((new_channel < 1) || (new_channel > 14))
+			return -EINVAL;
+	} else {
+		if (new_channel > 200)
+			return -EINVAL;
+	}
+
+	return nphy_channel_switch(dev, new_channel);
+}
+
+static unsigned int b43_nphy_op_get_default_chan(struct b43_wldev *dev)
+{
+	if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
+		return 1;
+	return 36;
+}
+
+static void b43_nphy_op_xmitpower(struct b43_wldev *dev)
+{//TODO
+}
+
+const struct b43_phy_operations b43_phyops_n = {
+	.allocate		= b43_nphy_op_allocate,
+	.init			= b43_nphy_op_init,
+	.exit			= b43_nphy_op_exit,
+	.phy_read		= b43_nphy_op_read,
+	.phy_write		= b43_nphy_op_write,
+	.radio_read		= b43_nphy_op_radio_read,
+	.radio_write		= b43_nphy_op_radio_write,
+	.software_rfkill	= b43_nphy_op_software_rfkill,
+	.switch_channel		= b43_nphy_op_switch_channel,
+	.get_default_chan	= b43_nphy_op_get_default_chan,
+	.xmitpower		= b43_nphy_op_xmitpower,
+};

drivers/net/wireless/b43/nphy.h

 #ifndef B43_NPHY_H_
 #define B43_NPHY_H_
 
-#include "phy.h"
+#include "phy_common.h"
 
 
 /* N-PHY registers. */
@@ -919,54 +919,14 @@
 
 struct b43_wldev;
 
+struct b43_phy_n {
+	bool initialised;
 
-#ifdef CONFIG_B43_NPHY
-/* N-PHY support enabled */
+	//TODO lots of missing stuff
+};
 
-int b43_phy_initn(struct b43_wldev *dev);
 
-void b43_nphy_radio_turn_on(struct b43_wldev *dev);
-void b43_nphy_radio_turn_off(struct b43_wldev *dev);
+struct b43_phy_operations;
+extern const struct b43_phy_operations b43_phyops_n;
 
-int b43_nphy_selectchannel(struct b43_wldev *dev, u8 channel);
-
-void b43_nphy_xmitpower(struct b43_wldev *dev);
-void b43_nphy_set_rxantenna(struct b43_wldev *dev, int antenna);
-
-
-#else /* CONFIG_B43_NPHY */
-/* N-PHY support disabled */
-
-
-static inline
-int b43_phy_initn(struct b43_wldev *dev)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline
-void b43_nphy_radio_turn_on(struct b43_wldev *dev)
-{
-}
-static inline
-void b43_nphy_radio_turn_off(struct b43_wldev *dev)
-{
-}
-
-static inline
-int b43_nphy_selectchannel(struct b43_wldev *dev, u8 channel)
-{
-	return -ENOSYS;
-}
-
-static inline
-void b43_nphy_xmitpower(struct b43_wldev *dev)
-{
-}
-static inline
-void b43_nphy_set_rxantenna(struct b43_wldev *dev, int antenna)
-{
-}
-
-#endif /* CONFIG_B43_NPHY */
 #endif /* B43_NPHY_H_ */

drivers/net/wireless/b43/phy_common.c

+/*
+
+  Broadcom B43 wireless driver
+  Common PHY routines
+
+  Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
+  Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it>
+  Copyright (c) 2005-2008 Michael Buesch <mb@bu3sch.de>
+  Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org>
+  Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; see the file COPYING.  If not, write to
+  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+  Boston, MA 02110-1301, USA.
+
+*/
+
+#include "phy_common.h"
+#include "phy_g.h"
+#include "phy_a.h"
+#include "nphy.h"
+#include "b43.h"
+#include "main.h"
+
+
+int b43_phy_operations_setup(struct b43_wldev *dev)
+{
+	struct b43_phy *phy = &(dev->phy);
+	int err;
+
+	phy->ops = NULL;
+
+	switch (phy->type) {
+	case B43_PHYTYPE_A:
+		phy->ops = &b43_phyops_a;
+		break;
+	case B43_PHYTYPE_G:
+		phy->ops = &b43_phyops_g;
+		break;
+	case B43_PHYTYPE_N:
+#ifdef CONFIG_B43_NPHY
+		phy->ops = &b43_phyops_n;
+#endif
+		break;
+	case B43_PHYTYPE_LP:
+		/* FIXME: Not yet */
+		break;
+	}
+	if (B43_WARN_ON(!phy->ops))
+		return -ENODEV;
+
+	err = phy->ops->allocate(dev);
+	if (err)
+		phy->ops = NULL;
+
+	return err;
+}
+
+int b43_phy_init(struct b43_wldev *dev)
+{
+	struct b43_phy *phy = &dev->phy;
+	const struct b43_phy_operations *ops = phy->ops;
+	int err;
+
+	phy->channel = ops->get_default_chan(dev);
+
+	ops->software_rfkill(dev, RFKILL_STATE_UNBLOCKED);
+	err = ops->init(dev);
+	if (err) {
+		b43err(dev->wl, "PHY init failed\n");
+		goto err_block_rf;
+	}
+	/* Make sure to switch hardware and firmware (SHM) to
+	 * the default channel. */
+	err = b43_switch_channel(dev, ops->get_default_chan(dev));
+	if (err) {
+		b43err(dev->wl, "PHY init: Channel switch to default failed\n");
+		goto err_phy_exit;
+	}
+
+	return 0;
+
+err_phy_exit:
+	if (ops->exit)
+		ops->exit(dev);
+err_block_rf:
+	ops->software_rfkill(dev, RFKILL_STATE_SOFT_BLOCKED);
+
+	return err;
+}
+
+void b43_phy_exit(struct b43_wldev *dev)
+{
+	const struct b43_phy_operations *ops = dev->phy.ops;
+
+	ops->software_rfkill(dev, RFKILL_STATE_SOFT_BLOCKED);
+	if (ops->exit)
+		ops->exit(dev);
+}
+
+bool b43_has_hardware_pctl(struct b43_wldev *dev)
+{
+	if (!dev->phy.hardware_power_control)
+		return 0;
+	if (!dev->phy.ops->supports_hwpctl)
+		return 0;
+	return dev->phy.ops->supports_hwpctl(dev);
+}
+
+void b43_radio_lock(struct b43_wldev *dev)
+{
+	u32 macctl;
+
+	macctl = b43_read32(dev, B43_MMIO_MACCTL);
+	B43_WARN_ON(macctl & B43_MACCTL_RADIOLOCK);
+	macctl |= B43_MACCTL_RADIOLOCK;
+	b43_write32(dev, B43_MMIO_MACCTL, macctl);
+	/* Commit the write and wait for the device
+	 * to exit any radio register access. */
+	b43_read32(dev, B43_MMIO_MACCTL);
+	udelay(10);
+}
+
+void b43_radio_unlock(struct b43_wldev *dev)
+{
+	u32 macctl;
+
+	/* Commit any write */
+	b43_read16(dev, B43_MMIO_PHY_VER);
+	/* unlock */
+	macctl = b43_read32(dev, B43_MMIO_MACCTL);
+	B43_WARN_ON(!(macctl & B43_MACCTL_RADIOLOCK));
+	macctl &= ~B43_MACCTL_RADIOLOCK;
+	b43_write32(dev, B43_MMIO_MACCTL, macctl);
+}
+
+void b43_phy_lock(struct b43_wldev *dev)
+{
+#if B43_DEBUG
+	B43_WARN_ON(dev->phy.phy_locked);
+	dev->phy.phy_locked = 1;
+#endif
+	B43_WARN_ON(dev->dev->id.revision < 3);
+
+	if (!b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP))
+		b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
+}
+
+void b43_phy_unlock(struct b43_wldev *dev)
+{
+#if B43_DEBUG
+	B43_WARN_ON(!dev->phy.phy_locked);
+	dev->phy.phy_locked = 0;
+#endif
+	B43_WARN_ON(dev->dev->id.revision < 3);
+
+	if (!b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP))
+		b43_power_saving_ctl_bits(dev, 0);
+}
+
+u16 b43_radio_read(struct b43_wldev *dev, u16 reg)
+{
+	return dev->phy.ops->radio_read(dev, reg);
+}
+
+void b43_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
+{
+	dev->phy.ops->radio_write(dev, reg, value);
+}
+
+void b43_radio_mask(struct b43_wldev *dev, u16 offset, u16 mask)
+{
+	b43_radio_write16(dev, offset,
+			  b43_radio_read16(dev, offset) & mask);
+}
+
+void b43_radio_set(struct b43_wldev *dev, u16 offset, u16 set)
+{
+	b43_radio_write16(dev, offset,
+			  b43_radio_read16(dev, offset) | set);
+}
+
+void b43_radio_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set)
+{
+	b43_radio_write16(dev, offset,
+			  (b43_radio_read16(dev, offset) & mask) | set);
+}
+
+u16 b43_phy_read(struct b43_wldev *dev, u16 reg)
+{
+	return dev->phy.ops->phy_read(dev, reg);
+}
+
+void b43_phy_write(struct b43_wldev *dev, u16 reg, u16 value)
+{
+	dev->phy.ops->phy_write(dev, reg, value);
+}
+
+void b43_phy_mask(struct b43_wldev *dev, u16 offset, u16 mask)
+{
+	b43_phy_write(dev, offset,
+		      b43_phy_read(dev, offset) & mask);
+}
+
+void b43_phy_set(struct b43_wldev *dev, u16 offset, u16 set)
+{
+	b43_phy_write(dev, offset,
+		      b43_phy_read(dev, offset) | set);
+}
+
+void b43_phy_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set)
+{
+	b43_phy_write(dev, offset,
+		      (b43_phy_read(dev, offset) & mask) | set);
+}
+
+int b43_switch_channel(struct b43_wldev *dev, unsigned int new_channel)
+{
+	struct b43_phy *phy = &(dev->phy);
+	u16 channelcookie, savedcookie;
+	int err;
+
+	if (new_channel == B43_DEFAULT_CHANNEL)
+		new_channel = phy->ops->get_default_chan(dev);
+
+	/* First we set the channel radio code to prevent the
+	 * firmware from sending ghost packets.
+	 */
+	channelcookie = new_channel;
+	if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ)
+		channelcookie |= 0x100;
+	//FIXME set 40Mhz flag if required
+	savedcookie = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_CHAN);
+	b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_CHAN, channelcookie);
+
+	/* Now try to switch the PHY hardware channel. */
+	err = phy->ops->switch_channel(dev, new_channel);
+	if (err)
+		goto err_restore_cookie;
+
+	dev->phy.channel = new_channel;
+	/* Wait for the radio to tune to the channel and stabilize. */
+	msleep(8);
+
+	return 0;
+
+err_restore_cookie:
+	b43_shm_write16(dev, B43_SHM_SHARED,
+			B43_SHM_SH_CHAN, savedcookie);
+
+	return err;
+}
+
+void b43_software_rfkill(struct b43_wldev *dev, enum rfkill_state state)
+{
+	struct b43_phy *phy = &dev->phy;
+
+	if (state == RFKILL_STATE_HARD_BLOCKED) {
+		/* We cannot hardware-block the device */
+		state = RFKILL_STATE_SOFT_BLOCKED;
+	}
+
+	phy->ops->software_rfkill(dev, state);
+	phy->radio_on = (state == RFKILL_STATE_UNBLOCKED);
+}

drivers/net/wireless/b43/phy_common.h

+#ifndef LINUX_B43_PHY_COMMON_H_
+#define LINUX_B43_PHY_COMMON_H_
+
+#include <linux/rfkill.h>
+
+struct b43_wldev;
+
+
+/* PHY register routing bits */
+#define B43_PHYROUTE			0x0C00 /* PHY register routing bits mask */
+#define  B43_PHYROUTE_BASE		0x0000 /* Base registers */
+#define  B43_PHYROUTE_OFDM_GPHY		0x0400 /* OFDM register routing for G-PHYs */
+#define  B43_PHYROUTE_EXT_GPHY		0x0800 /* Extended G-PHY registers */
+#define  B43_PHYROUTE_N_BMODE		0x0C00 /* N-PHY BMODE registers */
+
+/* CCK (B-PHY) registers. */
+#define B43_PHY_CCK(reg)		((reg) | B43_PHYROUTE_BASE)
+/* N-PHY registers. */
+#define B43_PHY_N(reg)			((reg) | B43_PHYROUTE_BASE)
+/* N-PHY BMODE registers. */
+#define B43_PHY_N_BMODE(reg)		((reg) | B43_PHYROUTE_N_BMODE)
+/* OFDM (A-PHY) registers. */
+#define B43_PHY_OFDM(reg)		((reg) | B43_PHYROUTE_OFDM_GPHY)
+/* Extended G-PHY registers. */
+#define B43_PHY_EXTG(reg)		((reg) | B43_PHYROUTE_EXT_GPHY)
+
+
+/* Masks for the PHY versioning registers. */
+#define B43_PHYVER_ANALOG		0xF000
+#define B43_PHYVER_ANALOG_SHIFT		12
+#define B43_PHYVER_TYPE			0x0F00
+#define B43_PHYVER_TYPE_SHIFT		8
+#define B43_PHYVER_VERSION		0x00FF
+
+/**
+ * enum b43_interference_mitigation - Interference Mitigation mode
+ *
+ * @B43_INTERFMODE_NONE:	Disabled
+ * @B43_INTERFMODE_NONWLAN:	Non-WLAN Interference Mitigation
+ * @B43_INTERFMODE_MANUALWLAN:	WLAN Interference Mitigation
+ * @B43_INTERFMODE_AUTOWLAN:	Automatic WLAN Interference Mitigation
+ */
+enum b43_interference_mitigation {
+	B43_INTERFMODE_NONE,
+	B43_INTERFMODE_NONWLAN,
+	B43_INTERFMODE_MANUALWLAN,
+	B43_INTERFMODE_AUTOWLAN,
+};
+
+/* Antenna identifiers */
+enum {
+	B43_ANTENNA0,		/* Antenna 0 */
+	B43_ANTENNA1,		/* Antenna 0 */
+	B43_ANTENNA_AUTO1,	/* Automatic, starting with antenna 1 */
+	B43_ANTENNA_AUTO0,	/* Automatic, starting with antenna 0 */
+	B43_ANTENNA2,
+	B43_ANTENNA3 = 8,
+
+	B43_ANTENNA_AUTO = B43_ANTENNA_AUTO0,
+	B43_ANTENNA_DEFAULT = B43_ANTENNA_AUTO,
+};
+
+/**
+ * struct b43_phy_operations - Function pointers for PHY ops.
+ *
+ * @prepare:		Prepare the PHY. This is called before @init.
+ * 			Can be NULL, if not required.
+ * @init:		Initialize the PHY.
+ * 			Must not be NULL.
+ * @exit:		Shutdown the PHY and free all data structures.
+ * 			Can be NULL, if not required.
+ *
+ * @phy_read:		Read from a PHY register.
+ * 			Must not be NULL.
+ * @phy_write:		Write to a PHY register.
+ * 			Must not be NULL.
+ * @radio_read:		Read from a Radio register.
+ * 			Must not be NULL.
+ * @radio_write:	Write to a Radio register.
+ * 			Must not be NULL.
+ *
+ * @supports_hwpctl:	Returns a boolean whether Hardware Power Control
+ * 			is supported or not.
+ * 			If NULL, hwpctl is assumed to be never supported.
+ * @software_rfkill:	Turn the radio ON or OFF.
+ * 			Possible state values are
+ * 			RFKILL_STATE_SOFT_BLOCKED or
+ * 			RFKILL_STATE_UNBLOCKED
+ * 			Must not be NULL.
+ * @switch_channel:	Switch the radio to another channel.
+ * 			Must not be NULL.
+ * @get_default_chan:	Just returns the default channel number.
+ * 			Must not be NULL.
+ * @set_rx_antenna:	Set the antenna used for RX.
+ * 			Can be NULL, if not supported.
+ * @interf_mitigation:	Switch the Interference Mitigation mode.
+ * 			Can be NULL, if not supported.
+ *
+ * @xmitpower:		FIXME REMOVEME
+ * 			Must not be NULL.
+ *
+ * @pwork_15sec:	Periodic work. Called every 15 seconds.
+ * 			Can be NULL, if not required.
+ * @pwork_60sec:	Periodic work. Called every 60 seconds.
+ * 			Can be NULL, if not required.
+ */
+struct b43_phy_operations {
+	/* Initialisation */
+	int (*allocate)(struct b43_wldev *dev);
+	int (*prepare)(struct b43_wldev *dev);
+	int (*init)(struct b43_wldev *dev);
+	void (*exit)(struct b43_wldev *dev);
+
+	/* Register access */
+	u16 (*phy_read)(struct b43_wldev *dev, u16 reg);
+	void (*phy_write)(struct b43_wldev *dev, u16 reg, u16 value);
+	u16 (*radio_read)(struct b43_wldev *dev, u16 reg);
+	void (*radio_write)(struct b43_wldev *dev, u16 reg, u16 value);
+
+	/* Radio */
+	bool (*supports_hwpctl)(struct b43_wldev *dev);
+	void (*software_rfkill)(struct b43_wldev *dev, enum rfkill_state state);
+	int (*switch_channel)(struct b43_wldev *dev, unsigned int new_channel);
+	unsigned int (*get_default_chan)(struct b43_wldev *dev);
+	void (*set_rx_antenna)(struct b43_wldev *dev, int antenna);
+	int (*interf_mitigation)(struct b43_wldev *dev,
+				 enum b43_interference_mitigation new_mode);
+
+	/* Transmission power adjustment */
+	void (*xmitpower)(struct b43_wldev *dev);
+
+	/* Misc */
+	void (*pwork_15sec)(struct b43_wldev *dev);
+	void (*pwork_60sec)(struct b43_wldev *dev);
+};
+
+struct b43_phy_a;
+struct b43_phy_g;
+struct b43_phy_n;
+
+struct b43_phy {
+	/* Hardware operation callbacks. */
+	const struct b43_phy_operations *ops;
+
+	/* Most hardware context information is stored in the standard-
+	 * specific data structures pointed to by the pointers below.
+	 * Only one of them is valid (the currently enabled PHY). */
+#ifdef CONFIG_B43_DEBUG
+	/* No union for debug build to force NULL derefs in buggy code. */
+	struct {
+#else
+	union {
+#endif
+		/* A-PHY specific information */
+		struct b43_phy_a *a;
+		/* G-PHY specific information */
+		struct b43_phy_g *g;
+		/* N-PHY specific information */
+		struct b43_phy_n *n;
+	};
+
+	/* Band support flags. */
+	bool supports_2ghz;
+	bool supports_5ghz;
+
+	/* GMODE bit enabled? */
+	bool gmode;
+
+	/* Analog Type */
+	u8 analog;
+	/* B43_PHYTYPE_ */
+	u8 type;
+	/* PHY revision number. */
+	u8 rev;
+
+	/* Radio versioning */
+	u16 radio_manuf;	/* Radio manufacturer */
+	u16 radio_ver;		/* Radio version */
+	u8 radio_rev;		/* Radio revision */
+
+	/* Software state of the radio */
+	bool radio_on;
+
+	/* Desired TX power level (in dBm).
+	 * This is set by the user and adjusted in b43_phy_xmitpower(). */
+	u8 power_level;
+
+	/* Hardware Power Control enabled? */
+	bool hardware_power_control;
+
+	/* current channel */
+	unsigned int channel;
+
+	/* PHY TX errors counter. */
+	atomic_t txerr_cnt;
+
+#ifdef CONFIG_B43_DEBUG
+	/* PHY registers locked by b43_phy_lock()? */
+	bool phy_locked;
+#endif /* B43_DEBUG */
+};
+
+
+/**
+ * b43_phy_operations_setup - Initialize the PHY operations datastructure
+ * based on the current PHY type.
+ */
+int b43_phy_operations_setup(struct b43_wldev *dev);
+
+/**
+ * b43_phy_init - Initialise the PHY
+ */
+int b43_phy_init(struct b43_wldev *dev);
+
+/**
+ * b43_phy_exit - Cleanup PHY
+ */
+void b43_phy_exit(struct b43_wldev *dev);
+
+/**
+ * b43_has_hardware_pctl - Hardware Power Control supported?
+ * Returns a boolean, whether hardware power control is supported.
+ */
+bool b43_has_hardware_pctl(struct b43_wldev *dev);
+
+/**
+ * b43_phy_read - 16bit PHY register read access
+ */
+u16 b43_phy_read(struct b43_wldev *dev, u16 reg);
+
+/**
+ * b43_phy_write - 16bit PHY register write access
+ */
+void b43_phy_write(struct b43_wldev *dev, u16 reg, u16 value);
+
+/**
+ * b43_phy_mask - Mask a PHY register with a mask
+ */
+void b43_phy_mask(struct b43_wldev *dev, u16 offset, u16 mask);
+
+/**
+ * b43_phy_set - OR a PHY register with a bitmap
+ */
+void b43_phy_set(struct b43_wldev *dev, u16 offset, u16 set);
+
+/**
+ * b43_phy_maskset - Mask and OR a PHY register with a mask and bitmap
+ */
+void b43_phy_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set);
+
+/**
+ * b43_radio_read - 16bit Radio register read access
+ */
+u16 b43_radio_read(struct b43_wldev *dev, u16 reg);
+#define b43_radio_read16	b43_radio_read /* DEPRECATED */
+
+/**
+ * b43_radio_write - 16bit Radio register write access
+ */
+void b43_radio_write(struct b43_wldev *dev, u16 reg, u16 value);
+#define b43_radio_write16	b43_radio_write /* DEPRECATED */
+
+/**
+ * b43_radio_mask - Mask a 16bit radio register with a mask
+ */
+void b43_radio_mask(struct b43_wldev *dev, u16 offset, u16 mask);
+
+/**
+ * b43_radio_set - OR a 16bit radio register with a bitmap
+ */
+void b43_radio_set(struct b43_wldev *dev, u16 offset, u16 set);
+
+/**
+ * b43_radio_maskset - Mask and OR a radio register with a mask and bitmap
+ */
+void b43_radio_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set);
+
+/**
+ * b43_radio_lock - Lock firmware radio register access
+ */
+void b43_radio_lock(struct b43_wldev *dev);
+
+/**
+ * b43_radio_unlock - Unlock firmware radio register access
+ */
+void b43_radio_unlock(struct b43_wldev *dev);
+
+/**
+ * b43_phy_lock - Lock firmware PHY register access
+ */
+void b43_phy_lock(struct b43_wldev *dev);
+
+/**
+ * b43_phy_unlock - Unlock firmware PHY register access
+ */
+void b43_phy_unlock(struct b43_wldev *dev);
+
+/**
+ * b43_switch_channel - Switch to another channel
+ */
+int b43_switch_channel(struct b43_wldev *dev, unsigned int new_channel);
+/**
+ * B43_DEFAULT_CHANNEL - Switch to the default channel.
+ */
+#define B43_DEFAULT_CHANNEL	UINT_MAX
+
+/**
+ * b43_software_rfkill - Turn the radio ON or OFF in software.
+ */
+void b43_software_rfkill(struct b43_wldev *dev, enum rfkill_state state);
+
+#endif /* LINUX_B43_PHY_COMMON_H_ */

drivers/net/wireless/b43/phy_g.h

+#ifndef LINUX_B43_PHY_G_H_
+#define LINUX_B43_PHY_G_H_
+
+/* OFDM PHY registers are defined in the A-PHY header. */
+#include "phy_a.h"
+
+/* CCK (B) PHY Registers */
+#define B43_PHY_VERSION_CCK		B43_PHY_CCK(0x00)	/* Versioning register for B-PHY */
+#define B43_PHY_CCKBBANDCFG		B43_PHY_CCK(0x01)	/* Contains antenna 0/1 control bit */
+#define B43_PHY_PGACTL			B43_PHY_CCK(0x15)	/* PGA control */
+#define  B43_PHY_PGACTL_LPF		0x1000	/* Low pass filter (?) */
+#define  B43_PHY_PGACTL_LOWBANDW	0x0040	/* Low bandwidth flag */
+#define  B43_PHY_PGACTL_UNKNOWN		0xEFA0
+#define B43_PHY_FBCTL1			B43_PHY_CCK(0x18)	/* Frequency bandwidth control 1 */
+#define B43_PHY_ITSSI			B43_PHY_CCK(0x29)	/* Idle TSSI */
+#define B43_PHY_LO_LEAKAGE		B43_PHY_CCK(0x2D)	/* Measured LO leakage */
+#define B43_PHY_ENERGY			B43_PHY_CCK(0x33)	/* Energy */
+#define B43_PHY_SYNCCTL			B43_PHY_CCK(0x35)
+#define B43_PHY_FBCTL2			B43_PHY_CCK(0x38)	/* Frequency bandwidth control 2 */
+#define B43_PHY_DACCTL			B43_PHY_CCK(0x60)	/* DAC control */
+#define B43_PHY_RCCALOVER		B43_PHY_CCK(0x78)	/* RC calibration override */
+
+/* Extended G-PHY Registers */
+#define B43_PHY_CLASSCTL		B43_PHY_EXTG(0x02)	/* Classify control */
+#define B43_PHY_GTABCTL			B43_PHY_EXTG(0x03)	/* G-PHY table control (see below) */
+#define  B43_PHY_GTABOFF		0x03FF	/* G-PHY table offset (see below) */
+#define  B43_PHY_GTABNR			0xFC00	/* G-PHY table number (see below) */
+#define  B43_PHY_GTABNR_SHIFT		10
+#define B43_PHY_GTABDATA		B43_PHY_EXTG(0x04)	/* G-PHY table data */
+#define B43_PHY_LO_MASK			B43_PHY_EXTG(0x0F)	/* Local Oscillator control mask */
+#define B43_PHY_LO_CTL			B43_PHY_EXTG(0x10)	/* Local Oscillator control */
+#define B43_PHY_RFOVER			B43_PHY_EXTG(0x11)	/* RF override */
+#define B43_PHY_RFOVERVAL		B43_PHY_EXTG(0x12)	/* RF override value */
+#define  B43_PHY_RFOVERVAL_EXTLNA	0x8000
+#define  B43_PHY_RFOVERVAL_LNA		0x7000
+#define  B43_PHY_RFOVERVAL_LNA_SHIFT	12
+#define  B43_PHY_RFOVERVAL_PGA		0x0F00
+#define  B43_PHY_RFOVERVAL_PGA_SHIFT	8
+#define  B43_PHY_RFOVERVAL_UNK		0x0010	/* Unknown, always set. */
+#define  B43_PHY_RFOVERVAL_TRSWRX	0x00E0
+#define  B43_PHY_RFOVERVAL_BW		0x0003	/* Bandwidth flags */
+#define   B43_PHY_RFOVERVAL_BW_LPF	0x0001	/* Low Pass Filter */
+#define   B43_PHY_RFOVERVAL_BW_LBW	0x0002	/* Low Bandwidth (when set), high when unset */
+#define B43_PHY_ANALOGOVER		B43_PHY_EXTG(0x14)	/* Analog override */
+#define B43_PHY_ANALOGOVERVAL		B43_PHY_EXTG(0x15)	/* Analog override value */
+
+
+/*** G-PHY table numbers */
+#define B43_GTAB(number, offset)	(((number) << B43_PHY_GTABNR_SHIFT) | (offset))
+#define B43_GTAB_NRSSI			B43_GTAB(0x00, 0)
+#define B43_GTAB_TRFEMW			B43_GTAB(0x0C, 0x120)
+#define B43_GTAB_ORIGTR			B43_GTAB(0x2E, 0x298)
+
+u16 b43_gtab_read(struct b43_wldev *dev, u16 table, u16 offset);
+void b43_gtab_write(struct b43_wldev *dev, u16 table, u16 offset, u16 value);
+
+
+/* Returns the boolean whether "TX Magnification" is enabled. */
+#define has_tx_magnification(phy) \
+	(((phy)->rev >= 2) &&			\
+	 ((phy)->radio_ver == 0x2050) &&	\
+	 ((phy)->radio_rev == 8))
+/* Card uses the loopback gain stuff */
+#define has_loopback_gain(phy) \
+	(((phy)->rev > 1) || ((phy)->gmode))
+
+/* Radio Attenuation (RF Attenuation) */
+struct b43_rfatt {
+	u8 att;			/* Attenuation value */
+	bool with_padmix;	/* Flag, PAD Mixer enabled. */
+};
+struct b43_rfatt_list {
+	/* Attenuation values list */
+	const struct b43_rfatt *list;
+	u8 len;
+	/* Minimum/Maximum attenuation values */
+	u8 min_val;
+	u8 max_val;
+};
+
+/* Returns true, if the values are the same. */
+static inline bool b43_compare_rfatt(const struct b43_rfatt *a,
+				     const struct b43_rfatt *b)
+{
+	return ((a->att == b->att) &&
+		(a->with_padmix == b->with_padmix));
+}
+
+/* Baseband Attenuation */
+struct b43_bbatt {
+	u8 att;			/* Attenuation value */
+};
+struct b43_bbatt_list {
+	/* Attenuation values list */
+	const struct b43_bbatt *list;
+	u8 len;
+	/* Minimum/Maximum attenuation values */
+	u8 min_val;
+	u8 max_val;
+};
+
+/* Returns true, if the values are the same. */
+static inline bool b43_compare_bbatt(const struct b43_bbatt *a,
+				     const struct b43_bbatt *b)
+{
+	return (a->att == b->att);
+}
+
+/* tx_control bits. */
+#define B43_TXCTL_PA3DB		0x40	/* PA Gain 3dB */
+#define B43_TXCTL_PA2DB		0x20	/* PA Gain 2dB */
+#define B43_TXCTL_TXMIX		0x10	/* TX Mixer Gain */
+
+struct b43_txpower_lo_control;
+
+struct b43_phy_g {
+	bool initialised;
+	bool dyn_tssi_tbl;	/* tssi2dbm is kmalloc()ed. */
+
+	/* ACI (adjacent channel interference) flags. */
+	bool aci_enable;
+	bool aci_wlan_automatic;
+	bool aci_hw_rssi;
+
+	/* Radio switched on/off */
+	bool radio_on;
+	struct {
+		/* Values saved when turning the radio off.
+		 * They are needed when turning it on again. */
+		bool valid;
+		u16 rfover;
+		u16 rfoverval;
+	} radio_off_context;
+
+	u16 minlowsig[2];
+	u16 minlowsigpos[2];
+
+	/* TSSI to dBm table in use */
+	const s8 *tssi2dbm;
+	/* Target idle TSSI */
+	int tgt_idle_tssi;
+	/* Current idle TSSI */
+	int cur_idle_tssi;
+
+	/* LocalOscillator control values. */
+	struct b43_txpower_lo_control *lo_control;
+	/* Values from b43_calc_loopback_gain() */
+	s16 max_lb_gain;	/* Maximum Loopback gain in hdB */
+	s16 trsw_rx_gain;	/* TRSW RX gain in hdB */
+	s16 lna_lod_gain;	/* LNA lod */
+	s16 lna_gain;		/* LNA */
+	s16 pga_gain;		/* PGA */
+
+	/* Current TX power level attenuation control values */
+	struct b43_bbatt bbatt;
+	struct b43_rfatt rfatt;
+	u8 tx_control;		/* B43_TXCTL_XXX */
+
+	/* Current Interference Mitigation mode */
+	int interfmode;
+	/* Stack of saved values from the Interference Mitigation code.
+	 * Each value in the stack is layed out as follows:
+	 * bit 0-11:  offset
+	 * bit 12-15: register ID
+	 * bit 16-32: value
+	 * register ID is: 0x1 PHY, 0x2 Radio, 0x3 ILT
+	 */
+#define B43_INTERFSTACK_SIZE	26
+	u32 interfstack[B43_INTERFSTACK_SIZE];	//FIXME: use a data structure
+
+	/* Saved values from the NRSSI Slope calculation */
+	s16 nrssi[2];
+	s32 nrssislope;
+	/* In memory nrssi lookup table. */
+	s8 nrssi_lt[64];
+
+	u16 lofcal;
+
+	u16 initval;		//FIXME rename?
+
+	/* The device does address auto increment for the OFDM tables.
+	 * We cache the previously used address here and omit the address
+	 * write on the next table access, if possible. */
+	u16 ofdmtab_addr; /* The address currently set in hardware. */
+	enum { /* The last data flow direction. */
+		B43_OFDMTAB_DIRECTION_UNKNOWN = 0,
+		B43_OFDMTAB_DIRECTION_READ,
+		B43_OFDMTAB_DIRECTION_WRITE,
+	} ofdmtab_addr_direction;
+};
+
+void b43_gphy_set_baseband_attenuation(struct b43_wldev *dev,
+				       u16 baseband_attenuation);
+void b43_gphy_channel_switch(struct b43_wldev *dev,
+			     unsigned int channel,
+			     bool synthetic_pu_workaround);
+
+struct b43_phy_operations;
+extern const struct b43_phy_operations b43_phyops_g;
+
+#endif /* LINUX_B43_PHY_G_H_ */

drivers/net/wireless/b43/rfkill.c

@@ -24,6 +24,7 @@
 
 #include "rfkill.h"
 #include "b43.h"
+#include "phy_common.h"
 
 #include <linux/kmod.h>
 
@@ -114,11 +115,11 @@ static int b43_rfkill_soft_toggle(void *data, enum rfkill_state state)
 			goto out_unlock;
 		}
 		if (!dev->phy.radio_on)
-			b43_radio_turn_on(dev);
+			b43_software_rfkill(dev, state);
 		break;
 	case RFKILL_STATE_SOFT_BLOCKED:
 		if (dev->phy.radio_on)
-			b43_radio_turn_off(dev, 0);
+			b43_software_rfkill(dev, state);
 		break;
 	default:
 		b43warn(wl, "Received unexpected rfkill state %d.\n", state);

drivers/net/wireless/b43/sysfs.c

@@ -29,7 +29,7 @@
 #include "b43.h"
 #include "sysfs.h"
 #include "main.h"
-#include "phy.h"
+#include "phy_common.h"
 
 #define GENERIC_FILESIZE	64
 
@@ -59,7 +59,12 @@ static ssize_t b43_attr_interfmode_show(struct device *dev,
 
 	mutex_lock(&wldev->wl->mutex);
 
-	switch (wldev->phy.interfmode) {
+	if (wldev->phy.type != B43_PHYTYPE_G) {
+		mutex_unlock(&wldev->wl->mutex);
+		return -ENOSYS;
+	}
+
+	switch (wldev->phy.g->interfmode) {
 	case B43_INTERFMODE_NONE:
 		count =
 		    snprintf(buf, PAGE_SIZE,
@@ -117,11 +122,15 @@ static ssize_t b43_attr_interfmode_store(struct device *dev,
 	mutex_lock(&wldev->wl->mutex);
 	spin_lock_irqsave(&wldev->wl->irq_lock, flags);
 
-	err = b43_radio_set_interference_mitigation(wldev, mode);
-	if (err) {
-		b43err(wldev->wl, "Interference Mitigation not "
-		       "supported by device\n");
-	}
+	if (wldev->phy.ops->interf_mitigation) {
+		err = wldev->phy.ops->interf_mitigation(wldev, mode);
+		if (err) {
+			b43err(wldev->wl, "Interference Mitigation not "
+			       "supported by device\n");
+		}
+	} else
+		err = -ENOSYS;
+
 	mmiowb();
 	spin_unlock_irqrestore(&wldev->wl->irq_lock, flags);
 	mutex_unlock(&wldev->wl->mutex);

drivers/net/wireless/b43/tables.c

@@ -27,7 +27,8 @@
 
 #include "b43.h"
 #include "tables.h"
-#include "phy.h"
+#include "phy_g.h"
+
 
 const u32 b43_tab_rotor[] = {
 	0xFEB93FFD, 0xFEC63FFD,	/* 0 */
@@ -377,17 +378,17 @@ static inline void assert_sizes(void)
 
 u16 b43_ofdmtab_read16(struct b43_wldev *dev, u16 table, u16 offset)
 {
-	struct b43_phy *phy = &dev->phy;
+	struct b43_phy_g *gphy = dev->phy.g;
 	u16 addr;
 
 	addr = table + offset;
-	if ((phy->ofdmtab_addr_direction != B43_OFDMTAB_DIRECTION_READ) ||
-	    (addr - 1 != phy->ofdmtab_addr)) {
+	if ((gphy->ofdmtab_addr_direction != B43_OFDMTAB_DIRECTION_READ) ||
+	    (addr - 1 != gphy->ofdmtab_addr)) {
 		/* The hardware has a different address in memory. Update it. */
 		b43_phy_write(dev, B43_PHY_OTABLECTL, addr);
-		phy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_READ;
+		gphy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_READ;
 	}
-	phy->ofdmtab_addr = addr;
+	gphy->ofdmtab_addr = addr;
 
 	return b43_phy_read(dev, B43_PHY_OTABLEI);
 
@@ -398,34 +399,34 @@ u16 b43_ofdmtab_read16(struct b43_wldev *dev, u16 table, u16 offset)
 void b43_ofdmtab_write16(struct b43_wldev *dev, u16 table,
 			 u16 offset, u16 value)
 {
-	struct b43_phy *phy = &dev->phy;
+	struct b43_phy_g *gphy = dev->phy.g;
 	u16 addr;
 
 	addr = table + offset;
-	if ((phy->ofdmtab_addr_direction != B43_OFDMTAB_DIRECTION_WRITE) ||
-	    (addr - 1 != phy->ofdmtab_addr)) {
+	if ((gphy->ofdmtab_addr_direction != B43_OFDMTAB_DIRECTION_WRITE) ||
+	    (addr - 1 != gphy->ofdmtab_addr)) {
 		/* The hardware has a different address in memory. Update it. */
 		b43_phy_write(dev, B43_PHY_OTABLECTL, addr);
-		phy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_WRITE;
+		gphy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_WRITE;
 	}
-	phy->ofdmtab_addr = addr;
+	gphy->ofdmtab_addr = addr;
 	b43_phy_write(dev, B43_PHY_OTABLEI, value);
 }
 
 u32 b43_ofdmtab_read32(struct b43_wldev *dev, u16 table, u16 offset)
 {
-	struct b43_phy *phy = &dev->phy;
+	struct b43_phy_g *gphy = dev->phy.g;
 	u32 ret;
 	u16 addr;
 
 	addr = table + offset;
-	if ((phy->ofdmtab_addr_direction != B43_OFDMTAB_DIRECTION_READ) ||
-	    (addr - 1 != phy->ofdmtab_addr)) {
+	if ((gphy->ofdmtab_addr_direction != B43_OFDMTAB_DIRECTION_READ) ||
+	    (addr - 1 != gphy->ofdmtab_addr)) {
 		/* The hardware has a different address in memory. Update it. */
 		b43_phy_write(dev, B43_PHY_OTABLECTL, addr);
-		phy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_READ;
+		gphy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_READ;
 	}
-	phy->ofdmtab_addr = addr;
+	gphy->ofdmtab_addr = addr;
 	ret = b43_phy_read(dev, B43_PHY_OTABLEQ);
 	ret <<= 16;
 	ret |= b43_phy_read(dev, B43_PHY_OTABLEI);
@@ -436,17 +437,17 @@ u32 b43_ofdmtab_read32(struct b43_wldev *dev, u16 table, u16 offset)
 void b43_ofdmtab_write32(struct b43_wldev *dev, u16 table,
 			 u16 offset, u32 value)
 {
-	struct b43_phy *phy = &dev->phy;
+	struct b43_phy_g *gphy = dev->phy.g;
 	u16 addr;
 
 	addr = table + offset;
-	if ((phy->ofdmtab_addr_direction != B43_OFDMTAB_DIRECTION_WRITE) ||
-	    (addr - 1 != phy->ofdmtab_addr)) {
+	if ((gphy->ofdmtab_addr_direction != B43_OFDMTAB_DIRECTION_WRITE) ||
+	    (addr - 1 != gphy->ofdmtab_addr)) {
 		/* The hardware has a different address in memory. Update it. */
 		b43_phy_write(dev, B43_PHY_OTABLECTL, addr);
-		phy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_WRITE;
+		gphy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_WRITE;
 	}
-	phy->ofdmtab_addr = addr;
+	gphy->ofdmtab_addr = addr;
 
 	b43_phy_write(dev, B43_PHY_OTABLEI, value);
 	b43_phy_write(dev, B43_PHY_OTABLEQ, (value >> 16));

drivers/net/wireless/b43/tables_nphy.c

@@ -24,7 +24,7 @@
 
 #include "b43.h"
 #include "tables_nphy.h"
-#include "phy.h"
+#include "phy_common.h"
 #include "nphy.h"
 
 

drivers/net/wireless/b43/wa.c

@@ -27,7 +27,7 @@
 #include "b43.h"
 #include "main.h"
 #include "tables.h"
-#include "phy.h"
+#include "phy_common.h"
 #include "wa.h"
 
 static void b43_wa_papd(struct b43_wldev *dev)

drivers/net/wireless/b43/xmit.c

@@ -28,7 +28,7 @@
 */
 
 #include "xmit.h"
-#include "phy.h"
+#include "phy_common.h"
 #include "dma.h"
 #include "pio.h"
 
@@ -431,6 +431,7 @@ static s8 b43_rssi_postprocess(struct b43_wldev *dev,
 			       int adjust_2053, int adjust_2050)
 {
 	struct b43_phy *phy = &dev->phy;
+	struct b43_phy_g *gphy = phy->g;
 	s32 tmp;
 
 	switch (phy->radio_ver) {
@@ -450,7 +451,8 @@ static s8 b43_rssi_postprocess(struct b43_wldev *dev,
 			    boardflags_lo & B43_BFL_RSSI) {
 				if (in_rssi > 63)
 					in_rssi = 63;
-				tmp = phy->nrssi_lt[in_rssi];
+				B43_WARN_ON(phy->type != B43_PHYTYPE_G);
+				tmp = gphy->nrssi_lt[in_rssi];
 				tmp = 31 - tmp;
 				tmp *= -131;
 				tmp /= 128;