forked from Minki/linux
bfc8dfec45
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
313 lines
8.9 KiB
C
313 lines
8.9 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 "tables_phy_ht.h"
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#include "radio_2059.h"
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#include "main.h"
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static void b43_radio_2059_channel_setup(struct b43_wldev *dev,
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const struct b43_phy_ht_channeltab_e_radio2059 *e)
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{
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u8 i;
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u16 routing;
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b43_radio_write(dev, 0x16, e->radio_syn16);
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b43_radio_write(dev, 0x17, e->radio_syn17);
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b43_radio_write(dev, 0x22, e->radio_syn22);
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b43_radio_write(dev, 0x25, e->radio_syn25);
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b43_radio_write(dev, 0x27, e->radio_syn27);
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b43_radio_write(dev, 0x28, e->radio_syn28);
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b43_radio_write(dev, 0x29, e->radio_syn29);
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b43_radio_write(dev, 0x2c, e->radio_syn2c);
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b43_radio_write(dev, 0x2d, e->radio_syn2d);
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b43_radio_write(dev, 0x37, e->radio_syn37);
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b43_radio_write(dev, 0x41, e->radio_syn41);
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b43_radio_write(dev, 0x43, e->radio_syn43);
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b43_radio_write(dev, 0x47, e->radio_syn47);
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b43_radio_write(dev, 0x4a, e->radio_syn4a);
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b43_radio_write(dev, 0x58, e->radio_syn58);
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b43_radio_write(dev, 0x5a, e->radio_syn5a);
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b43_radio_write(dev, 0x6a, e->radio_syn6a);
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b43_radio_write(dev, 0x6d, e->radio_syn6d);
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b43_radio_write(dev, 0x6e, e->radio_syn6e);
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b43_radio_write(dev, 0x92, e->radio_syn92);
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b43_radio_write(dev, 0x98, e->radio_syn98);
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for (i = 0; i < 2; i++) {
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routing = i ? 0x800 : 0x400;
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b43_radio_write(dev, routing | 0x4a, e->radio_rxtx4a);
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b43_radio_write(dev, routing | 0x58, e->radio_rxtx58);
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b43_radio_write(dev, routing | 0x5a, e->radio_rxtx5a);
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b43_radio_write(dev, routing | 0x6a, e->radio_rxtx6a);
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b43_radio_write(dev, routing | 0x6d, e->radio_rxtx6d);
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b43_radio_write(dev, routing | 0x6e, e->radio_rxtx6e);
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b43_radio_write(dev, routing | 0x92, e->radio_rxtx92);
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b43_radio_write(dev, routing | 0x98, e->radio_rxtx98);
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}
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udelay(50);
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/* Calibration */
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b43_radio_mask(dev, 0x2b, ~0x1);
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b43_radio_mask(dev, 0x2e, ~0x4);
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b43_radio_set(dev, 0x2e, 0x4);
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b43_radio_set(dev, 0x2b, 0x1);
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udelay(300);
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}
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static void b43_phy_ht_channel_setup(struct b43_wldev *dev,
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const struct b43_phy_ht_channeltab_e_phy *e,
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struct ieee80211_channel *new_channel)
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{
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bool old_band_5ghz;
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u8 i;
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old_band_5ghz = b43_phy_read(dev, B43_PHY_HT_BANDCTL) & 0; /* FIXME */
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if (new_channel->band == IEEE80211_BAND_5GHZ && !old_band_5ghz) {
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/* TODO */
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} else if (new_channel->band == IEEE80211_BAND_2GHZ && old_band_5ghz) {
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/* TODO */
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}
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b43_phy_write(dev, B43_PHY_HT_BW1, e->bw1);
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b43_phy_write(dev, B43_PHY_HT_BW2, e->bw2);
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b43_phy_write(dev, B43_PHY_HT_BW3, e->bw3);
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b43_phy_write(dev, B43_PHY_HT_BW4, e->bw4);
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b43_phy_write(dev, B43_PHY_HT_BW5, e->bw5);
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b43_phy_write(dev, B43_PHY_HT_BW6, e->bw6);
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/* TODO: some ops on PHY regs 0x0B0 and 0xC0A */
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/* TODO: separated function? */
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for (i = 0; i < 3; i++) {
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u16 mask;
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u32 tmp = b43_httab_read(dev, B43_HTTAB32(26, 0xE8));
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if (0) /* FIXME */
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mask = 0x2 << (i * 4);
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else
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mask = 0;
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b43_phy_mask(dev, B43_PHY_EXTG(0x108), mask);
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b43_httab_write(dev, B43_HTTAB16(7, 0x110 + i), tmp >> 16);
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b43_httab_write(dev, B43_HTTAB8(13, 0x63 + (i * 4)),
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tmp & 0xFF);
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b43_httab_write(dev, B43_HTTAB8(13, 0x73 + (i * 4)),
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tmp & 0xFF);
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}
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b43_phy_write(dev, 0x017e, 0x3830);
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}
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static int b43_phy_ht_set_channel(struct b43_wldev *dev,
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struct ieee80211_channel *channel,
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enum nl80211_channel_type channel_type)
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{
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struct b43_phy *phy = &dev->phy;
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const struct b43_phy_ht_channeltab_e_radio2059 *chent_r2059 = NULL;
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if (phy->radio_ver == 0x2059) {
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chent_r2059 = b43_phy_ht_get_channeltab_e_r2059(dev,
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channel->center_freq);
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if (!chent_r2059)
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return -ESRCH;
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} else {
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return -ESRCH;
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}
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/* TODO: In case of N-PHY some bandwidth switching goes here */
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if (phy->radio_ver == 0x2059) {
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b43_radio_2059_channel_setup(dev, chent_r2059);
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b43_phy_ht_channel_setup(dev, &(chent_r2059->phy_regs),
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channel);
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} else {
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return -ESRCH;
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}
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return 0;
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}
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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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/* http://bcm-v4.sipsolutions.net/802.11/Radio/Switch%20Radio */
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static void b43_phy_ht_op_software_rfkill(struct b43_wldev *dev,
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bool blocked)
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{
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if (b43_read32(dev, B43_MMIO_MACCTL) & B43_MACCTL_ENABLED)
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b43err(dev->wl, "MAC not suspended\n");
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if (blocked) {
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b43_phy_mask(dev, B43_PHY_HT_RF_CTL1, ~0);
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} else {
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b43_phy_mask(dev, B43_PHY_HT_RF_CTL1, ~0);
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b43_phy_maskset(dev, B43_PHY_HT_RF_CTL1, ~0, 0x1);
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b43_phy_mask(dev, B43_PHY_HT_RF_CTL1, ~0);
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b43_phy_maskset(dev, B43_PHY_HT_RF_CTL1, ~0, 0x2);
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}
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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 int b43_phy_ht_op_switch_channel(struct b43_wldev *dev,
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unsigned int new_channel)
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{
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struct ieee80211_channel *channel = dev->wl->hw->conf.channel;
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enum nl80211_channel_type channel_type = dev->wl->hw->conf.channel_type;
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if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
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if ((new_channel < 1) || (new_channel > 14))
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return -EINVAL;
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} else {
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return -EINVAL;
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}
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return b43_phy_ht_set_channel(dev, channel, channel_type);
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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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.software_rfkill = b43_phy_ht_op_software_rfkill,
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.switch_analog = b43_phy_ht_op_switch_analog,
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.switch_channel = b43_phy_ht_op_switch_channel,
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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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