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a8e827495a
Turning it on is always done between reading PHY version and radio version, so it was easy to find it in MMIO dumps from ndiswrapper. Turning off is done by writing different values to the same registers. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
157 lines
4.3 KiB
C
157 lines
4.3 KiB
C
/*
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Broadcom B43 wireless driver
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IEEE 802.11n HT-PHY support
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <linux/slab.h>
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#include "b43.h"
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#include "phy_ht.h"
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#include "main.h"
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/**************************************************
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* Basic PHY ops.
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**************************************************/
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static int b43_phy_ht_op_allocate(struct b43_wldev *dev)
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{
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struct b43_phy_ht *phy_ht;
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phy_ht = kzalloc(sizeof(*phy_ht), GFP_KERNEL);
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if (!phy_ht)
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return -ENOMEM;
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dev->phy.ht = phy_ht;
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return 0;
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}
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static void b43_phy_ht_op_prepare_structs(struct b43_wldev *dev)
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{
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struct b43_phy *phy = &dev->phy;
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struct b43_phy_ht *phy_ht = phy->ht;
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memset(phy_ht, 0, sizeof(*phy_ht));
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}
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static void b43_phy_ht_op_free(struct b43_wldev *dev)
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{
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struct b43_phy *phy = &dev->phy;
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struct b43_phy_ht *phy_ht = phy->ht;
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kfree(phy_ht);
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phy->ht = NULL;
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}
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static void b43_phy_ht_op_switch_analog(struct b43_wldev *dev, bool on)
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{
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if (on) {
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b43_phy_write(dev, B43_PHY_HT_AFE_CTL2, 0x00cd);
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b43_phy_write(dev, B43_PHY_HT_AFE_CTL1, 0x0000);
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b43_phy_write(dev, B43_PHY_HT_AFE_CTL4, 0x00cd);
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b43_phy_write(dev, B43_PHY_HT_AFE_CTL3, 0x0000);
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b43_phy_write(dev, B43_PHY_HT_AFE_CTL6, 0x00cd);
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b43_phy_write(dev, B43_PHY_HT_AFE_CTL5, 0x0000);
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} else {
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b43_phy_write(dev, B43_PHY_HT_AFE_CTL1, 0x07ff);
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b43_phy_write(dev, B43_PHY_HT_AFE_CTL2, 0x00fd);
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b43_phy_write(dev, B43_PHY_HT_AFE_CTL3, 0x07ff);
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b43_phy_write(dev, B43_PHY_HT_AFE_CTL4, 0x00fd);
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b43_phy_write(dev, B43_PHY_HT_AFE_CTL5, 0x07ff);
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b43_phy_write(dev, B43_PHY_HT_AFE_CTL6, 0x00fd);
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}
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}
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static unsigned int b43_phy_ht_op_get_default_chan(struct b43_wldev *dev)
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{
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if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
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return 1;
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return 36;
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}
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/**************************************************
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* R/W ops.
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**************************************************/
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static u16 b43_phy_ht_op_read(struct b43_wldev *dev, u16 reg)
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{
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b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
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return b43_read16(dev, B43_MMIO_PHY_DATA);
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}
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static void b43_phy_ht_op_write(struct b43_wldev *dev, u16 reg, u16 value)
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{
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b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
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b43_write16(dev, B43_MMIO_PHY_DATA, value);
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}
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static void b43_phy_ht_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
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u16 set)
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{
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b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
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b43_write16(dev, B43_MMIO_PHY_DATA,
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(b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
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}
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static u16 b43_phy_ht_op_radio_read(struct b43_wldev *dev, u16 reg)
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{
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/* HT-PHY needs 0x200 for read access */
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reg |= 0x200;
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b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
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return b43_read16(dev, B43_MMIO_RADIO24_DATA);
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}
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static void b43_phy_ht_op_radio_write(struct b43_wldev *dev, u16 reg,
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u16 value)
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{
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b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
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b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
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}
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/**************************************************
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* PHY ops struct.
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**************************************************/
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const struct b43_phy_operations b43_phyops_ht = {
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.allocate = b43_phy_ht_op_allocate,
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.free = b43_phy_ht_op_free,
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.prepare_structs = b43_phy_ht_op_prepare_structs,
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/*
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.init = b43_phy_ht_op_init,
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*/
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.phy_read = b43_phy_ht_op_read,
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.phy_write = b43_phy_ht_op_write,
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.phy_maskset = b43_phy_ht_op_maskset,
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.radio_read = b43_phy_ht_op_radio_read,
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.radio_write = b43_phy_ht_op_radio_write,
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/*
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.software_rfkill = b43_phy_ht_op_software_rfkill,
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*/
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.switch_analog = b43_phy_ht_op_switch_analog,
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/*
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.switch_channel = b43_phy_ht_op_switch_channel,
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*/
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.get_default_chan = b43_phy_ht_op_get_default_chan,
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/*
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.recalc_txpower = b43_phy_ht_op_recalc_txpower,
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.adjust_txpower = b43_phy_ht_op_adjust_txpower,
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*/
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};
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