drivers/net/wireless/b43/phy_lcn.c - kernel/msm - Gitiles

 /*

   Broadcom B43 wireless driver
   IEEE 802.11n LCN-PHY support

   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 <linux/slab.h>

 #include "b43.h"
 #include "phy_lcn.h"
 #include "tables_phy_lcn.h"
 #include "main.h"

 /**************************************************
  * Radio 2064.
  **************************************************/

 static void b43_radio_2064_init(struct b43_wldev *dev)
 {
 	b43_radio_write(dev, 0x09c, 0x0020);
 	b43_radio_write(dev, 0x105, 0x0008);
 	b43_radio_write(dev, 0x032, 0x0062);
 	b43_radio_write(dev, 0x033, 0x0019);
 	b43_radio_write(dev, 0x090, 0x0010);
 	b43_radio_write(dev, 0x010, 0x0000);
 	b43_radio_write(dev, 0x060, 0x007f);
 	b43_radio_write(dev, 0x061, 0x0072);
 	b43_radio_write(dev, 0x062, 0x007f);
 	b43_radio_write(dev, 0x01d, 0x0002);
 	b43_radio_write(dev, 0x01e, 0x0006);

 	b43_phy_write(dev, 0x4ea, 0x4688);
 	b43_phy_maskset(dev, 0x4eb, ~0x7, 0x2);
 	b43_phy_mask(dev, 0x4eb, ~0x01c0);
 	b43_phy_maskset(dev, 0x4eb, 0xff00, 0x19);

 	b43_lcntab_write(dev, B43_LCNTAB16(0x00, 0x55), 0);

 	b43_radio_mask(dev, 0x05b, (u16) ~0xff02);
 	b43_radio_set(dev, 0x004, 0x40);
 	b43_radio_set(dev, 0x120, 0x10);
 	b43_radio_set(dev, 0x078, 0x80);
 	b43_radio_set(dev, 0x129, 0x2);
 	b43_radio_set(dev, 0x057, 0x1);
 	b43_radio_set(dev, 0x05b, 0x2);

 	/* TODO: wait for some bit to be set */
 	b43_radio_read(dev, 0x05c);

 	b43_radio_mask(dev, 0x05b, (u16) ~0xff02);
 	b43_radio_mask(dev, 0x057, (u16) ~0xff01);

 	b43_phy_write(dev, 0x933, 0x2d6b);
 	b43_phy_write(dev, 0x934, 0x2d6b);
 	b43_phy_write(dev, 0x935, 0x2d6b);
 	b43_phy_write(dev, 0x936, 0x2d6b);
 	b43_phy_write(dev, 0x937, 0x016b);

 	b43_radio_mask(dev, 0x057, (u16) ~0xff02);
 	b43_radio_write(dev, 0x0c2, 0x006f);
 }

 /**************************************************
  * Various PHY ops
  **************************************************/

 static void b43_phy_lcn_afe_set_unset(struct b43_wldev *dev)
 {
 	u16 afe_ctl2 = b43_phy_read(dev, B43_PHY_LCN_AFE_CTL2);
 	u16 afe_ctl1 = b43_phy_read(dev, B43_PHY_LCN_AFE_CTL1);

 	b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2 | 0x1);
 	b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1 | 0x1);

 	b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2 & ~0x1);
 	b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1 & ~0x1);

 	b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2);
 	b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1);
 }

 static void b43_phy_lcn_clean_0x18_table(struct b43_wldev *dev)
 {
 	u8 i;

 	for (i = 0; i < 0x80; i++)
 		b43_lcntab_write(dev, B43_LCNTAB32(0x18, i), 0x80000);
 }

 static void b43_phy_lcn_clear_0x07_table(struct b43_wldev *dev)
 {
 	u8 i;

 	b43_phy_write(dev, B43_PHY_LCN_TABLE_ADDR, (0x7 << 10) | 0x340);
 	for (i = 0; i < 30; i++) {
 		b43_phy_write(dev, B43_PHY_LCN_TABLE_DATAHI, 0);
 		b43_phy_write(dev, B43_PHY_LCN_TABLE_DATALO, 0);
 	}

 	b43_phy_write(dev, B43_PHY_LCN_TABLE_ADDR, (0x7 << 10) | 0x80);
 	for (i = 0; i < 64; i++) {
 		b43_phy_write(dev, B43_PHY_LCN_TABLE_DATAHI, 0);
 		b43_phy_write(dev, B43_PHY_LCN_TABLE_DATALO, 0);
 	}
 }

 /**************************************************
  * Basic PHY ops.
  **************************************************/

 static int b43_phy_lcn_op_allocate(struct b43_wldev *dev)
 {
 	struct b43_phy_lcn *phy_lcn;

 	phy_lcn = kzalloc(sizeof(*phy_lcn), GFP_KERNEL);
 	if (!phy_lcn)
 		return -ENOMEM;
 	dev->phy.lcn = phy_lcn;

 	return 0;
 }

 static void b43_phy_lcn_op_free(struct b43_wldev *dev)
 {
 	struct b43_phy *phy = &dev->phy;
 	struct b43_phy_lcn *phy_lcn = phy->lcn;

 	kfree(phy_lcn);
 	phy->lcn = NULL;
 }

 static void b43_phy_lcn_op_prepare_structs(struct b43_wldev *dev)
 {
 	struct b43_phy *phy = &dev->phy;
 	struct b43_phy_lcn *phy_lcn = phy->lcn;

 	memset(phy_lcn, 0, sizeof(*phy_lcn));
 }

 static int b43_phy_lcn_op_init(struct b43_wldev *dev)
 {
 	b43_phy_set(dev, 0x44a, 0x80);
 	b43_phy_mask(dev, 0x44a, 0x7f);
 	b43_phy_set(dev, 0x6d1, 0x80);
 	b43_phy_write(dev, 0x6d0, 0x7);

 	b43_phy_lcn_afe_set_unset(dev);

 	b43_phy_write(dev, 0x60a, 0xa0);
 	b43_phy_write(dev, 0x46a, 0x19);
 	b43_phy_maskset(dev, 0x663, 0xFF00, 0x64);

 	b43_phy_lcn_tables_init(dev);
 	/* TODO: various tables ops here */
 	b43_phy_lcn_clean_0x18_table(dev);

 	/* TODO: some ops here */

 	b43_phy_lcn_clear_0x07_table(dev);

 	if (dev->phy.radio_ver == 0x2064)
 		b43_radio_2064_init(dev);
 	else
 		B43_WARN_ON(1);

 	return 0;
 }

 static void b43_phy_lcn_op_software_rfkill(struct b43_wldev *dev,
 					bool blocked)
 {
 	if (b43_read32(dev, B43_MMIO_MACCTL) & B43_MACCTL_ENABLED)
 		b43err(dev->wl, "MAC not suspended\n");

 	if (blocked) {
 		b43_phy_mask(dev, B43_PHY_LCN_RF_CTL2, ~0x7c00);
 		b43_phy_set(dev, B43_PHY_LCN_RF_CTL1, 0x1f00);

 		b43_phy_mask(dev, B43_PHY_LCN_RF_CTL5, ~0x7f00);
 		b43_phy_mask(dev, B43_PHY_LCN_RF_CTL4, ~0x2);
 		b43_phy_set(dev, B43_PHY_LCN_RF_CTL3, 0x808);

 		b43_phy_mask(dev, B43_PHY_LCN_RF_CTL7, ~0x8);
 		b43_phy_set(dev, B43_PHY_LCN_RF_CTL6, 0x8);
 	} else {
 		b43_phy_mask(dev, B43_PHY_LCN_RF_CTL1, ~0x1f00);
 		b43_phy_mask(dev, B43_PHY_LCN_RF_CTL3, ~0x808);
 		b43_phy_mask(dev, B43_PHY_LCN_RF_CTL6, ~0x8);
 	}
 }

 static void b43_phy_lcn_op_switch_analog(struct b43_wldev *dev, bool on)
 {
 	if (on) {
 		b43_phy_mask(dev, B43_PHY_LCN_AFE_CTL1, ~0x7);
 	} else {
 		b43_phy_set(dev, B43_PHY_LCN_AFE_CTL2, 0x7);
 		b43_phy_set(dev, B43_PHY_LCN_AFE_CTL1, 0x7);
 	}
 }

 static unsigned int b43_phy_lcn_op_get_default_chan(struct b43_wldev *dev)
 {
 	if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
 		return 1;
 	return 36;
 }

 static enum b43_txpwr_result
 b43_phy_lcn_op_recalc_txpower(struct b43_wldev *dev, bool ignore_tssi)
 {
 	return B43_TXPWR_RES_DONE;
 }

 static void b43_phy_lcn_op_adjust_txpower(struct b43_wldev *dev)
 {
 }

 /**************************************************
  * R/W ops.
  **************************************************/

 static u16 b43_phy_lcn_op_read(struct b43_wldev *dev, u16 reg)
 {
 	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
 	return b43_read16(dev, B43_MMIO_PHY_DATA);
 }

 static void b43_phy_lcn_op_write(struct b43_wldev *dev, u16 reg, u16 value)
 {
 	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
 	b43_write16(dev, B43_MMIO_PHY_DATA, value);
 }

 static void b43_phy_lcn_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
 				   u16 set)
 {
 	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
 	b43_write16(dev, B43_MMIO_PHY_DATA,
 		    (b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
 }

 static u16 b43_phy_lcn_op_radio_read(struct b43_wldev *dev, u16 reg)
 {
 	/* LCN-PHY needs 0x200 for read access */
 	reg |= 0x200;

 	b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
 	return b43_read16(dev, B43_MMIO_RADIO24_DATA);
 }

 static void b43_phy_lcn_op_radio_write(struct b43_wldev *dev, u16 reg,
 				       u16 value)
 {
 	b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
 	b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
 }

 /**************************************************
  * PHY ops struct.
  **************************************************/

 const struct b43_phy_operations b43_phyops_lcn = {
 	.allocate		= b43_phy_lcn_op_allocate,
 	.free			= b43_phy_lcn_op_free,
 	.prepare_structs	= b43_phy_lcn_op_prepare_structs,
 	.init			= b43_phy_lcn_op_init,
 	.phy_read		= b43_phy_lcn_op_read,
 	.phy_write		= b43_phy_lcn_op_write,
 	.phy_maskset		= b43_phy_lcn_op_maskset,
 	.radio_read		= b43_phy_lcn_op_radio_read,
 	.radio_write		= b43_phy_lcn_op_radio_write,
 	.software_rfkill	= b43_phy_lcn_op_software_rfkill,
 	.switch_analog		= b43_phy_lcn_op_switch_analog,
 	/*
 	.switch_channel		= b43_phy_lcn_op_switch_channel,
 	*/
 	.get_default_chan	= b43_phy_lcn_op_get_default_chan,
 	.recalc_txpower		= b43_phy_lcn_op_recalc_txpower,
 	.adjust_txpower		= b43_phy_lcn_op_adjust_txpower,
 };
	/*

	Broadcom B43 wireless driver
	IEEE 802.11n LCN-PHY support

	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 <linux/slab.h>

	#include "b43.h"
	#include "phy_lcn.h"
	#include "tables_phy_lcn.h"
	#include "main.h"

	/**************************************************
	* Radio 2064.
	**************************************************/

	static void b43_radio_2064_init(struct b43_wldev *dev)
	{
	b43_radio_write(dev, 0x09c, 0x0020);
	b43_radio_write(dev, 0x105, 0x0008);
	b43_radio_write(dev, 0x032, 0x0062);
	b43_radio_write(dev, 0x033, 0x0019);
	b43_radio_write(dev, 0x090, 0x0010);
	b43_radio_write(dev, 0x010, 0x0000);
	b43_radio_write(dev, 0x060, 0x007f);
	b43_radio_write(dev, 0x061, 0x0072);
	b43_radio_write(dev, 0x062, 0x007f);
	b43_radio_write(dev, 0x01d, 0x0002);
	b43_radio_write(dev, 0x01e, 0x0006);

	b43_phy_write(dev, 0x4ea, 0x4688);
	b43_phy_maskset(dev, 0x4eb, ~0x7, 0x2);
	b43_phy_mask(dev, 0x4eb, ~0x01c0);
	b43_phy_maskset(dev, 0x4eb, 0xff00, 0x19);

	b43_lcntab_write(dev, B43_LCNTAB16(0x00, 0x55), 0);

	b43_radio_mask(dev, 0x05b, (u16) ~0xff02);
	b43_radio_set(dev, 0x004, 0x40);
	b43_radio_set(dev, 0x120, 0x10);
	b43_radio_set(dev, 0x078, 0x80);
	b43_radio_set(dev, 0x129, 0x2);
	b43_radio_set(dev, 0x057, 0x1);
	b43_radio_set(dev, 0x05b, 0x2);

	/* TODO: wait for some bit to be set */
	b43_radio_read(dev, 0x05c);

	b43_radio_mask(dev, 0x05b, (u16) ~0xff02);
	b43_radio_mask(dev, 0x057, (u16) ~0xff01);

	b43_phy_write(dev, 0x933, 0x2d6b);
	b43_phy_write(dev, 0x934, 0x2d6b);
	b43_phy_write(dev, 0x935, 0x2d6b);
	b43_phy_write(dev, 0x936, 0x2d6b);
	b43_phy_write(dev, 0x937, 0x016b);

	b43_radio_mask(dev, 0x057, (u16) ~0xff02);
	b43_radio_write(dev, 0x0c2, 0x006f);
	}

	/**************************************************
	* Various PHY ops
	**************************************************/

	static void b43_phy_lcn_afe_set_unset(struct b43_wldev *dev)
	{
	u16 afe_ctl2 = b43_phy_read(dev, B43_PHY_LCN_AFE_CTL2);
	u16 afe_ctl1 = b43_phy_read(dev, B43_PHY_LCN_AFE_CTL1);

	b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2 \| 0x1);
	b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1 \| 0x1);

	b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2 & ~0x1);
	b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1 & ~0x1);

	b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2);
	b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1);
	}

	static void b43_phy_lcn_clean_0x18_table(struct b43_wldev *dev)
	{
	u8 i;

	for (i = 0; i < 0x80; i++)
	b43_lcntab_write(dev, B43_LCNTAB32(0x18, i), 0x80000);
	}

	static void b43_phy_lcn_clear_0x07_table(struct b43_wldev *dev)
	{
	u8 i;

	b43_phy_write(dev, B43_PHY_LCN_TABLE_ADDR, (0x7 << 10) \| 0x340);
	for (i = 0; i < 30; i++) {
	b43_phy_write(dev, B43_PHY_LCN_TABLE_DATAHI, 0);
	b43_phy_write(dev, B43_PHY_LCN_TABLE_DATALO, 0);
	}

	b43_phy_write(dev, B43_PHY_LCN_TABLE_ADDR, (0x7 << 10) \| 0x80);
	for (i = 0; i < 64; i++) {
	b43_phy_write(dev, B43_PHY_LCN_TABLE_DATAHI, 0);
	b43_phy_write(dev, B43_PHY_LCN_TABLE_DATALO, 0);
	}
	}

	/**************************************************
	* Basic PHY ops.
	**************************************************/

	static int b43_phy_lcn_op_allocate(struct b43_wldev *dev)
	{
	struct b43_phy_lcn *phy_lcn;

	phy_lcn = kzalloc(sizeof(*phy_lcn), GFP_KERNEL);
	if (!phy_lcn)
	return -ENOMEM;
	dev->phy.lcn = phy_lcn;

	return 0;
	}

	static void b43_phy_lcn_op_free(struct b43_wldev *dev)
	{
	struct b43_phy *phy = &dev->phy;
	struct b43_phy_lcn *phy_lcn = phy->lcn;

	kfree(phy_lcn);
	phy->lcn = NULL;
	}

	static void b43_phy_lcn_op_prepare_structs(struct b43_wldev *dev)
	{
	struct b43_phy *phy = &dev->phy;
	struct b43_phy_lcn *phy_lcn = phy->lcn;

	memset(phy_lcn, 0, sizeof(*phy_lcn));
	}

	static int b43_phy_lcn_op_init(struct b43_wldev *dev)
	{
	b43_phy_set(dev, 0x44a, 0x80);
	b43_phy_mask(dev, 0x44a, 0x7f);
	b43_phy_set(dev, 0x6d1, 0x80);
	b43_phy_write(dev, 0x6d0, 0x7);

	b43_phy_lcn_afe_set_unset(dev);

	b43_phy_write(dev, 0x60a, 0xa0);
	b43_phy_write(dev, 0x46a, 0x19);
	b43_phy_maskset(dev, 0x663, 0xFF00, 0x64);

	b43_phy_lcn_tables_init(dev);
	/* TODO: various tables ops here */
	b43_phy_lcn_clean_0x18_table(dev);

	/* TODO: some ops here */

	b43_phy_lcn_clear_0x07_table(dev);

	if (dev->phy.radio_ver == 0x2064)
	b43_radio_2064_init(dev);
	else
	B43_WARN_ON(1);

	return 0;
	}

	static void b43_phy_lcn_op_software_rfkill(struct b43_wldev *dev,
	bool blocked)
	{
	if (b43_read32(dev, B43_MMIO_MACCTL) & B43_MACCTL_ENABLED)
	b43err(dev->wl, "MAC not suspended\n");

	if (blocked) {
	b43_phy_mask(dev, B43_PHY_LCN_RF_CTL2, ~0x7c00);
	b43_phy_set(dev, B43_PHY_LCN_RF_CTL1, 0x1f00);

	b43_phy_mask(dev, B43_PHY_LCN_RF_CTL5, ~0x7f00);
	b43_phy_mask(dev, B43_PHY_LCN_RF_CTL4, ~0x2);
	b43_phy_set(dev, B43_PHY_LCN_RF_CTL3, 0x808);

	b43_phy_mask(dev, B43_PHY_LCN_RF_CTL7, ~0x8);
	b43_phy_set(dev, B43_PHY_LCN_RF_CTL6, 0x8);
	} else {
	b43_phy_mask(dev, B43_PHY_LCN_RF_CTL1, ~0x1f00);
	b43_phy_mask(dev, B43_PHY_LCN_RF_CTL3, ~0x808);
	b43_phy_mask(dev, B43_PHY_LCN_RF_CTL6, ~0x8);
	}
	}

	static void b43_phy_lcn_op_switch_analog(struct b43_wldev *dev, bool on)
	{
	if (on) {
	b43_phy_mask(dev, B43_PHY_LCN_AFE_CTL1, ~0x7);
	} else {
	b43_phy_set(dev, B43_PHY_LCN_AFE_CTL2, 0x7);
	b43_phy_set(dev, B43_PHY_LCN_AFE_CTL1, 0x7);
	}
	}

	static unsigned int b43_phy_lcn_op_get_default_chan(struct b43_wldev *dev)
	{
	if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
	return 1;
	return 36;
	}

	static enum b43_txpwr_result
	b43_phy_lcn_op_recalc_txpower(struct b43_wldev *dev, bool ignore_tssi)
	{
	return B43_TXPWR_RES_DONE;
	}

	static void b43_phy_lcn_op_adjust_txpower(struct b43_wldev *dev)
	{
	}

	/**************************************************
	* R/W ops.
	**************************************************/

	static u16 b43_phy_lcn_op_read(struct b43_wldev *dev, u16 reg)
	{
	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
	return b43_read16(dev, B43_MMIO_PHY_DATA);
	}

	static void b43_phy_lcn_op_write(struct b43_wldev *dev, u16 reg, u16 value)
	{
	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
	b43_write16(dev, B43_MMIO_PHY_DATA, value);
	}

	static void b43_phy_lcn_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
	u16 set)
	{
	b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
	b43_write16(dev, B43_MMIO_PHY_DATA,
	(b43_read16(dev, B43_MMIO_PHY_DATA) & mask) \| set);
	}

	static u16 b43_phy_lcn_op_radio_read(struct b43_wldev *dev, u16 reg)
	{
	/* LCN-PHY needs 0x200 for read access */
	reg \|= 0x200;

	b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
	return b43_read16(dev, B43_MMIO_RADIO24_DATA);
	}

	static void b43_phy_lcn_op_radio_write(struct b43_wldev *dev, u16 reg,
	u16 value)
	{
	b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
	b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
	}

	/**************************************************
	* PHY ops struct.
	**************************************************/

	const struct b43_phy_operations b43_phyops_lcn = {
	.allocate = b43_phy_lcn_op_allocate,
	.free = b43_phy_lcn_op_free,
	.prepare_structs = b43_phy_lcn_op_prepare_structs,
	.init = b43_phy_lcn_op_init,
	.phy_read = b43_phy_lcn_op_read,
	.phy_write = b43_phy_lcn_op_write,
	.phy_maskset = b43_phy_lcn_op_maskset,
	.radio_read = b43_phy_lcn_op_radio_read,
	.radio_write = b43_phy_lcn_op_radio_write,
	.software_rfkill = b43_phy_lcn_op_software_rfkill,
	.switch_analog = b43_phy_lcn_op_switch_analog,
	/*
	.switch_channel = b43_phy_lcn_op_switch_channel,
	*/
	.get_default_chan = b43_phy_lcn_op_get_default_chan,
	.recalc_txpower = b43_phy_lcn_op_recalc_txpower,
	.adjust_txpower = b43_phy_lcn_op_adjust_txpower,
	};