/*
Broadcom B43 wireless driver
IEEE 802.11n LCN-PHY support
Copyright (c) 2011 Rafał Miłecki <zajec5@gmail.com>
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.
**************************************************/
/* wlc_lcnphy_radio_2064_channel_tune_4313 */
static void b43_radio_2064_channel_setup(struct b43_wldev *dev)
{
u16 save[2];
b43_radio_set(dev, 0x09d, 0x4);
b43_radio_write(dev, 0x09e, 0xf);
/* Channel specific values in theory, in practice always the same */
b43_radio_write(dev, 0x02a, 0xb);
b43_radio_maskset(dev, 0x030, ~0x3, 0xa);
b43_radio_maskset(dev, 0x091, ~0x3, 0);
b43_radio_maskset(dev, 0x038, ~0xf, 0x7);
b43_radio_maskset(dev, 0x030, ~0xc, 0x8);
b43_radio_maskset(dev, 0x05e, ~0xf, 0x8);
b43_radio_maskset(dev, 0x05e, ~0xf0, 0x80);
b43_radio_write(dev, 0x06c, 0x80);
save[0] = b43_radio_read(dev, 0x044);
save[1] = b43_radio_read(dev, 0x12b);
b43_radio_set(dev, 0x044, 0x7);
b43_radio_set(dev, 0x12b, 0xe);
/* TODO */
b43_radio_write(dev, 0x040, 0xfb);
b43_radio_write(dev, 0x041, 0x9a);
b43_radio_write(dev, 0x042, 0xa3);
b43_radio_write(dev, 0x043, 0x0c);
/* TODO */
b43_radio_set(dev, 0x044, 0x0c);
udelay(1);
b43_radio_write(dev, 0x044, save[0]);
b43_radio_write(dev, 0x12b, save[1]);
if (dev->phy.rev == 1) {
/* brcmsmac uses outdated 0x3 for 0x038 */
b43_radio_write(dev, 0x038, 0x0);
b43_radio_write(dev, 0x091, 0x7);
}
}
/* wlc_radio_2064_init */
static void b43_radio_2064_init(struct b43_wldev *dev)
{
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
b43_radio_write(dev, 0x09c, 0x0020);
b43_radio_write(dev, 0x105, 0x0008);
} else {
/* TODO */
}
b43_radio_write(dev, 0x032, 0x0062);
b43_radio_write(dev, 0x033, 0x0019);
b43_radio_write(dev, 0x090, 0x0010);
b43_radio_write(dev, 0x010, 0x0000);
if (dev->phy.rev == 1) {
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, 0x46a, 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
**************************************************/
/* wlc_lcnphy_toggle_afe_pwdn */
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);
}
/* wlc_lcnphy_clear_tx_power_offsets */
static void b43_phy_lcn_clear_tx_power_offsets(struct b43_wldev *dev)
{
u8 i;
if (1) { /* FIXME */
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);
}
}
/* wlc_lcnphy_rev0_baseband_init */
static void b43_phy_lcn_rev0_baseband_init(struct b43_wldev *dev)
{
b43_radio_write(dev, 0x11c, 0);
b43_phy_write(dev, 0x43b, 0);
b43_phy_write(dev, 0x43c, 0);
b43_phy_write(dev, 0x44c, 0);
b43_phy_write(dev, 0x4e6, 0);
b43_phy_write(dev, 0x4f9, 0);
b43_phy_write(dev, 0x4b0, 0);
b43_phy_write(dev, 0x938, 0);
b43_phy_write(dev, 0x4b0, 0);
b43_phy_write(dev, 0x44e, 0);
b43_phy_set(dev, 0x567, 0x03);
b43_phy_set(dev, 0x44a, 0x44);
b43_phy_write(dev, 0x44a, 0x80);
if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_FEM))
; /* TODO */
b43_phy_maskset(dev, 0x634, ~0xff, 0xc);
if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_FEM) {
b43_phy_maskset(dev, 0x634, ~0xff, 0xa);
b43_phy_write(dev, 0x910, 0x1);
}
b43_phy_write(dev, 0x910, 0x1);
b43_phy_maskset(dev, 0x448, ~0x300, 0x100);
b43_phy_maskset(dev, 0x608, ~0xff, 0x17);
b43_phy_maskset(dev, 0x604, ~0x7ff, 0x3ea);
}
/* wlc_lcnphy_bu_tweaks */
static void b43_phy_lcn_bu_tweaks(struct b43_wldev *dev)
{
b43_phy_set(dev, 0x805, 0x1);
b43_phy_maskset(dev, 0x42f, ~0x7, 0x3);
b43_phy_maskset(dev, 0x030, ~0x7, 0x3);
b43_phy_write(dev, 0x414, 0x1e10);
b43_phy_write(dev, 0x415, 0x0640);
b43_phy_maskset(dev, 0x4df, (u16) ~0xff00, 0xf700);
b43_phy_set(dev, 0x44a, 0x44);
b43_phy_write(dev, 0x44a, 0x80);
b43_phy_maskset(dev, 0x434, ~0xff, 0xfd);
b43_phy_maskset(dev, 0x420, ~0xff, 0x10);
if (dev->dev->bus_sprom->board_rev >= 0x1204)
b43_radio_set(dev, 0x09b, 0xf0);
b43_phy_write(dev, 0x7d6, 0x0902);
/* TODO: more ops */
if (dev->phy.rev == 1) {
/* TODO: more ops */
b43_phy_lcn_clear_tx_power_offsets(dev);
}
}
/* wlc_lcnphy_vbat_temp_sense_setup */
static void b43_phy_lcn_sense_setup(struct b43_wldev *dev)
{
u8 i;
u16 save_radio_regs[6][2] = {
{ 0x007, 0 }, { 0x0ff, 0 }, { 0x11f, 0 }, { 0x005, 0 },
{ 0x025, 0 }, { 0x112, 0 },
};
u16 save_phy_regs[14][2] = {
{ 0x503, 0 }, { 0x4a4, 0 }, { 0x4d0, 0 }, { 0x4d9, 0 },
{ 0x4da, 0 }, { 0x4a6, 0 }, { 0x938, 0 }, { 0x939, 0 },
{ 0x4d8, 0 }, { 0x4d0, 0 }, { 0x4d7, 0 }, { 0x4a5, 0 },
{ 0x40d, 0 }, { 0x4a2, 0 },
};
u16 save_radio_4a4;
for (i = 0; i < 6; i++)
save_radio_regs[i][1] = b43_radio_read(dev,
save_radio_regs[i][0]);
for (i = 0; i < 14; i++)
save_phy_regs[i][1] = b43_phy_read(dev, save_phy_regs[i][0]);
save_radio_4a4 = b43_radio_read(dev, 0x4a4);
/* TODO: config sth */
for (i = 0; i < 6; i++)
b43_radio_write(dev, save_radio_regs[i][0],
save_radio_regs[i][1]);
for (i = 0; i < 14; i++)
b43_phy_write(dev, save_phy_regs[i][0], save_phy_regs[i][1]);
b43_radio_write(dev, 0x4a4, save_radio_4a4);
}
/**************************************************
* Channel switching ops.
**************************************************/
static int b43_phy_lcn_set_channel(struct b43_wldev *dev,
struct ieee80211_channel *channel,
enum nl80211_channel_type channel_type)
{
/* TODO: PLL and PHY ops */
b43_phy_set(dev, 0x44a, 0x44);
b43_phy_write(dev, 0x44a, 0x80);
b43_phy_set(dev, 0x44a, 0x44);
b43_phy_write(dev, 0x44a, 0x80);
b43_radio_2064_channel_setup(dev);
mdelay(1);
b43_phy_lcn_afe_set_unset(dev);
/* TODO */
return 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));
}
/* wlc_phy_init_lcnphy */
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);
b43_phy_lcn_rev0_baseband_init(dev);
b43_phy_lcn_bu_tweaks(dev);
if (dev->phy.radio_ver == 0x2064)
b43_radio_2064_init(dev);
else
B43_WARN_ON(1);
b43_phy_lcn_sense_setup(dev);
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 int b43_phy_lcn_op_switch_channel(struct b43_wldev *dev,
unsigned int new_channel)
{
struct ieee80211_channel *channel = dev->wl->hw->conf.channel;
enum nl80211_channel_type channel_type = dev->wl->hw->conf.channel_type;
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
if ((new_channel < 1) || (new_channel > 14))
return -EINVAL;
} else {
return -EINVAL;
}
return b43_phy_lcn_set_channel(dev, channel, channel_type);
}
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,
};
