// SPDX-License-Identifier: GPL-2.0-or-later
/*
Broadcom B43 wireless driver
IEEE 802.11n HT-PHY support
Copyright (c) 2011 Rafał Miłecki <zajec5@gmail.com>
*/
#include <linux/slab.h>
#include "b43.h"
#include "phy_ht.h"
#include "tables_phy_ht.h"
#include "radio_2059.h"
#include "main.h"
/* Force values to keep compatibility with wl */
enum ht_rssi_type {
HT_RSSI_W1 = 0,
HT_RSSI_W2 = 1,
HT_RSSI_NB = 2,
HT_RSSI_IQ = 3,
HT_RSSI_TSSI_2G = 4,
HT_RSSI_TSSI_5G = 5,
HT_RSSI_TBD = 6,
};
/**************************************************
* Radio 2059.
**************************************************/
static void b43_radio_2059_channel_setup(struct b43_wldev *dev,
const struct b43_phy_ht_channeltab_e_radio2059 *e)
{
static const u16 routing[] = { R2059_C1, R2059_C2, R2059_C3, };
u16 r;
int core;
b43_radio_write(dev, 0x16, e->radio_syn16);
b43_radio_write(dev, 0x17, e->radio_syn17);
b43_radio_write(dev, 0x22, e->radio_syn22);
b43_radio_write(dev, 0x25, e->radio_syn25);
b43_radio_write(dev, 0x27, e->radio_syn27);
b43_radio_write(dev, 0x28, e->radio_syn28);
b43_radio_write(dev, 0x29, e->radio_syn29);
b43_radio_write(dev, 0x2c, e->radio_syn2c);
b43_radio_write(dev, 0x2d, e->radio_syn2d);
b43_radio_write(dev, 0x37, e->radio_syn37);
b43_radio_write(dev, 0x41, e->radio_syn41);
b43_radio_write(dev, 0x43, e->radio_syn43);
b43_radio_write(dev, 0x47, e->radio_syn47);
for (core = 0; core < 3; core++) {
r = routing[core];
b43_radio_write(dev, r | 0x4a, e->radio_rxtx4a);
b43_radio_write(dev, r | 0x58, e->radio_rxtx58);
b43_radio_write(dev, r | 0x5a, e->radio_rxtx5a);
b43_radio_write(dev, r | 0x6a, e->radio_rxtx6a);
b43_radio_write(dev, r | 0x6d, e->radio_rxtx6d);
b43_radio_write(dev, r | 0x6e, e->radio_rxtx6e);
b43_radio_write(dev, r | 0x92, e->radio_rxtx92);
b43_radio_write(dev, r | 0x98, e->radio_rxtx98);
}
udelay(50);
/* Calibration */
b43_radio_mask(dev, R2059_RFPLL_MISC_EN, ~0x1);
b43_radio_mask(dev, R2059_RFPLL_MISC_CAL_RESETN, ~0x4);
b43_radio_set(dev, R2059_RFPLL_MISC_CAL_RESETN, 0x4);
b43_radio_set(dev, R2059_RFPLL_MISC_EN, 0x1);
udelay(300);
}
/* Calibrate resistors in LPF of PLL? */
static void b43_radio_2059_rcal(struct b43_wldev *dev)
{
/* Enable */
b43_radio_set(dev, R2059_C3 | R2059_RCAL_CONFIG, 0x1);
usleep_range(10, 20);
b43_radio_set(dev, R2059_C3 | 0x0BF, 0x1);
b43_radio_maskset(dev, R2059_C3 | 0x19B, 0x3, 0x2);
/* Start */
b43_radio_set(dev, R2059_C3 | R2059_RCAL_CONFIG, 0x2);
usleep_range(100, 200);
/* Stop */
b43_radio_mask(dev, R2059_C3 | R2059_RCAL_CONFIG, ~0x2);
if (!b43_radio_wait_value(dev, R2059_C3 | R2059_RCAL_STATUS, 1, 1, 100,
1000000))
b43err(dev->wl, "Radio 0x2059 rcal timeout\n");
/* Disable */
b43_radio_mask(dev, R2059_C3 | R2059_RCAL_CONFIG, ~0x1);
b43_radio_set(dev, 0xa, 0x60);
}
/* Calibrate the internal RC oscillator? */
static void b43_radio_2057_rccal(struct b43_wldev *dev)
{
static const u16 radio_values[3][2] = {
{ 0x61, 0xE9 }, { 0x69, 0xD5 }, { 0x73, 0x99 },
};
int i;
for (i = 0; i < 3; i++) {
b43_radio_write(dev, R2059_RCCAL_MASTER, radio_values[i][0]);
b43_radio_write(dev, R2059_RCCAL_X1, 0x6E);
b43_radio_write(dev, R2059_RCCAL_TRC0, radio_values[i][1]);
/* Start */
b43_radio_write(dev, R2059_RCCAL_START_R1_Q1_P1, 0x55);
/* Wait */
if (!b43_radio_wait_value(dev, R2059_RCCAL_DONE_OSCCAP, 2, 2,
500, 5000000))
b43err(dev->wl, "Radio 0x2059 rccal timeout\n");
/* Stop */
b43_radio_write(dev, R2059_RCCAL_START_R1_Q1_P1, 0x15);
}
b43_radio_mask(dev, R2059_RCCAL_MASTER, ~0x1);
}
static void b43_radio_2059_init_pre(struct b43_wldev *dev)
{
b43_phy_mask(dev, B43_PHY_HT_RF_CTL_CMD, ~B43_PHY_HT_RF_CTL_CMD_CHIP0_PU);
b43_phy_set(dev, B43_PHY_HT_RF_CTL_CMD, B43_PHY_HT_RF_CTL_CMD_FORCE);
b43_phy_mask(dev, B43_PHY_HT_RF_CTL_CMD, ~B43_PHY_HT_RF_CTL_CMD_FORCE);
b43_phy_set(dev, B43_PHY_HT_RF_CTL_CMD, B43_PHY_HT_RF_CTL_CMD_CHIP0_PU);
}
static void b43_radio_2059_init(struct b43_wldev *dev)
{
static const u16 routing[] = { R2059_C1, R2059_C2, R2059_C3 };
int i;
/* Prepare (reset?) radio */
b43_radio_2059_init_pre(dev);
r2059_upload_inittabs(dev);
for (i = 0; i < ARRAY_SIZE(routing); i++)
b43_radio_set(dev, routing[i] | 0x146, 0x3);
/* Post init starts below */
b43_radio_set(dev, R2059_RFPLL_MISC_CAL_RESETN, 0x0078);
b43_radio_set(dev, R2059_XTAL_CONFIG2, 0x0080);
msleep(2);
b43_radio_mask(dev, R2059_RFPLL_MISC_CAL_RESETN, ~0x0078);
b43_radio_mask(dev, R2059_XTAL_CONFIG2, ~0x0080);
if (1) { /* FIXME */
b43_radio_2059_rcal(dev);
b43_radio_2057_rccal(dev);
}
b43_radio_mask(dev, R2059_RFPLL_MASTER, ~0x0008);
}
/**************************************************
* RF
**************************************************/
static void b43_phy_ht_force_rf_sequence(struct b43_wldev *dev, u16 rf_seq)
{
u8 i;
u16 save_seq_mode = b43_phy_read(dev, B43_PHY_HT_RF_SEQ_MODE);
b43_phy_set(dev, B43_PHY_HT_RF_SEQ_MODE, 0x3);
b43_phy_set(dev, B43_PHY_HT_RF_SEQ_TRIG, rf_seq);
for (i = 0; i < 200; i++) {
if (!(b43_phy_read(dev, B43_PHY_HT_RF_SEQ_STATUS) & rf_seq)) {
i = 0;
break;
}
msleep(1);
}
if (i)
b43err(dev->wl, "Forcing RF sequence timeout\n");
b43_phy_write(dev, B43_PHY_HT_RF_SEQ_MODE, save_seq_mode);
}
static void b43_phy_ht_pa_override(struct b43_wldev *dev, bool enable)
{
struct b43_phy_ht *htphy = dev->phy.ht;
static const u16 regs[3] = { B43_PHY_HT_RF_CTL_INT_C1,
B43_PHY_HT_RF_CTL_INT_C2,
B43_PHY_HT_RF_CTL_INT_C3 };
int i;
if (enable) {
for (i = 0; i < 3; i++)
b43_phy_write(dev, regs[i], htphy->rf_ctl_int_save[i]);
} else {
for (i = 0; i < 3; i++)
htphy->rf_ctl_int_save[i] = b43_phy_read(dev, regs[i]);
/* TODO: Does 5GHz band use different value (not 0x0400)? */
for (i = 0; i < 3; i++)
b43_phy_write(dev, regs[i], 0x0400);
}
}
/**************************************************
* Various PHY ops
**************************************************/
static u16 b43_phy_ht_classifier(struct b43_wldev *dev, u16 mask, u16 val)
{
u16 tmp;
u16 allowed = B43_PHY_HT_CLASS_CTL_CCK_EN |
B43_PHY_HT_CLASS_CTL_OFDM_EN |
B43_PHY_HT_CLASS_CTL_WAITED_EN;
tmp = b43_phy_read(dev, B43_PHY_HT_CLASS_CTL);
tmp &= allowed;
tmp &= ~mask;
tmp |= (val & mask);
b43_phy_maskset(dev, B43_PHY_HT_CLASS_CTL, ~allowed, tmp);
return tmp;
}
static void b43_phy_ht_reset_cca(struct b43_wldev *dev)
{
u16 bbcfg;
b43_phy_force_clock(dev, true);
bbcfg = b43_phy_read(dev, B43_PHY_HT_BBCFG);
b43_phy_write(dev, B43_PHY_HT_BBCFG, bbcfg | B43_PHY_HT_BBCFG_RSTCCA);
udelay(1);
b43_phy_write(dev, B43_PHY_HT_BBCFG, bbcfg & ~B43_PHY_HT_BBCFG_RSTCCA);
b43_phy_force_clock(dev, false);
b43_phy_ht_force_rf_sequence(dev, B43_PHY_HT_RF_SEQ_TRIG_RST2RX);
}
static void b43_phy_ht_zero_extg(struct b43_wldev *dev)
{
u8 i, j;
static const u16 base[] = { 0x40, 0x60, 0x80 };
for (i = 0; i < ARRAY_SIZE(base); i++) {
for (j = 0; j < 4; j++)
b43_phy_write(dev, B43_PHY_EXTG(base[i] + j), 0);
}
for (i = 0; i < ARRAY_SIZE(base); i++)
b43_phy_write(dev, B43_PHY_EXTG(base[i] + 0xc), 0);
}
/* Some unknown AFE (Analog Frondned) op */
static void b43_phy_ht_afe_unk1(struct b43_wldev *dev)
{
u8 i;
static const u16 ctl_regs[3][2] = {
{ B43_PHY_HT_AFE_C1_OVER, B43_PHY_HT_AFE_C1 },
{ B43_PHY_HT_AFE_C2_OVER, B43_PHY_HT_AFE_C2 },
{ B43_PHY_HT_AFE_C3_OVER, B43_PHY_HT_AFE_C3},
};
for (i = 0; i < 3; i++) {
/* TODO: verify masks&sets */
b43_phy_set(dev, ctl_regs[i][1], 0x4);
b43_phy_set(dev, ctl_regs[i][0], 0x4);
b43_phy_mask(dev, ctl_regs[i][1], ~0x1);
b43_phy_set(dev, ctl_regs[i][0], 0x1);
b43_httab_write(dev, B43_HTTAB16(8, 5 + (i * 0x10)), 0);
b43_phy_mask(dev, ctl_regs[i][0], ~0x4);
}
}
static void b43_phy_ht_read_clip_detection(struct b43_wldev *dev, u16 *clip_st)
{
clip_st[0] = b43_phy_read(dev, B43_PHY_HT_C1_CLIP1THRES);
clip_st[1] = b43_phy_read(dev, B43_PHY_HT_C2_CLIP1THRES);
clip_st[2] = b43_phy_read(dev, B43_PHY_HT_C3_CLIP1THRES);
}
static void b43_phy_ht_bphy_init(struct b43_wldev *dev)
{
unsigned int i;
u16 val;
val = 0x1E1F;
for (i = 0; i < 16; i++) {
b43_phy_write(dev, B43_PHY_N_BMODE(0x88 + i), val);
val -= 0x202;
}
val = 0x3E3F;
for (i = 0; i < 16; i++) {
b43_phy_write(dev, B43_PHY_N_BMODE(0x98 + i), val);
val -= 0x202;
}
b43_phy_write(dev, B43_PHY_N_BMODE(0x38), 0x668);
}
static void b43_phy_ht_bphy_reset(struct b43_wldev *dev, bool reset)
{
u16 tmp;
tmp = b43_read16(dev, B43_MMIO_PSM_PHY_HDR);
b43_write16(dev, B43_MMIO_PSM_PHY_HDR,
tmp | B43_PSM_HDR_MAC_PHY_FORCE_CLK);
/* Put BPHY in or take it out of the reset */
if (reset)
b43_phy_set(dev, B43_PHY_B_BBCFG,
B43_PHY_B_BBCFG_RSTCCA | B43_PHY_B_BBCFG_RSTRX);
else
b43_phy_mask(dev, B43_PHY_B_BBCFG,
(u16)~(B43_PHY_B_BBCFG_RSTCCA |
B43_PHY_B_BBCFG_RSTRX));
b43_write16(dev, B43_MMIO_PSM_PHY_HDR, tmp);
}
/**************************************************
* Samples
**************************************************/
static void b43_phy_ht_stop_playback(struct b43_wldev *dev)
{
struct b43_phy_ht *phy_ht = dev->phy.ht;
u16 tmp;
int i;
tmp = b43_phy_read(dev, B43_PHY_HT_SAMP_STAT);
if (tmp & 0x1)
b43_phy_set(dev, B43_PHY_HT_SAMP_CMD, B43_PHY_HT_SAMP_CMD_STOP);
else if (tmp & 0x2)
b43_phy_mask(dev, B43_PHY_HT_IQLOCAL_CMDGCTL, 0x7FFF);
b43_phy_mask(dev, B43_PHY_HT_SAMP_CMD, ~0x0004);
for (i = 0; i < 3; i++) {
if (phy_ht->bb_mult_save[i] >= 0) {
b43_httab_write(dev, B43_HTTAB16(13, 0x63 + i * 4),
phy_ht->bb_mult_save[i]);
b43_httab_write(dev, B43_HTTAB16(13, 0x67 + i * 4),
phy_ht->bb_mult_save[i]);
}
}
}
static u16 b43_phy_ht_load_samples(struct b43_wldev *dev)
{
int i;
u16 len = 20 << 3;
b43_phy_write(dev, B43_PHY_HT_TABLE_ADDR, 0x4400);
for (i = 0; i < len; i++) {
b43_phy_write(dev, B43_PHY_HT_TABLE_DATAHI, 0);
b43_phy_write(dev, B43_PHY_HT_TABLE_DATALO, 0);
}
return len;
}
static void b43_phy_ht_run_samples(struct b43_wldev *dev, u16 samps, u16 loops,
u16 wait)
{
struct b43_phy_ht *phy_ht = dev->phy.ht;
u16 save_seq_mode;
int i;
for (i = 0; i < 3; i++) {
if (phy_ht->bb_mult_save[i] < 0)
phy_ht->bb_mult_save[i] = b43_httab_read(dev, B43_HTTAB16(13, 0x63 + i * 4));
}
b43_phy_write(dev, B43_PHY_HT_SAMP_DEP_CNT, samps - 1);
if (loops != 0xFFFF)
loops--;
b43_phy_write(dev, B43_PHY_HT_SAMP_LOOP_CNT, loops);
b43_phy_write(dev, B43_PHY_HT_SAMP_WAIT_CNT, wait);
save_seq_mode = b43_phy_read(dev, B43_PHY_HT_RF_SEQ_MODE);
b43_phy_set(dev, B43_PHY_HT_RF_SEQ_MODE,
B43_PHY_HT_RF_SEQ_MODE_CA_OVER);
/* TODO: find out mask bits! Do we need more function arguments? */
b43_phy_mask(dev, B43_PHY_HT_SAMP_CMD, ~0);
b43_phy_mask(dev, B43_PHY_HT_SAMP_CMD, ~0);
b43_phy_mask(dev, B43_PHY_HT_IQLOCAL_CMDGCTL, ~0);
b43_phy_set(dev, B43_PHY_HT_SAMP_CMD, 0x1);
for (i = 0; i < 100; i++) {
if (!(b43_phy_read(dev, B43_PHY_HT_RF_SEQ_STATUS) & 1)) {
i = 0;
break;
}
udelay(10);
}
if (i)
b43err(dev->wl, "run samples timeout\n");
b43_phy_write(dev, B43_PHY_HT_RF_SEQ_MODE, save_seq_mode);
}
static void b43_phy_ht_tx_tone(struct b43_wldev *dev)
{
u16 samp;
samp = b43_phy_ht_load_samples(dev);
b43_phy_ht_run_samples(dev, samp, 0xFFFF, 0);
}
/**************************************************
* RSSI
**************************************************/
static void b43_phy_ht_rssi_select(struct b43_wldev *dev, u8 core_sel,
enum ht_rssi_type rssi_type)
{
static const u16 ctl_regs[3][2] = {
{ B43_PHY_HT_AFE_C1, B43_PHY_HT_AFE_C1_OVER, },
{ B43_PHY_HT_AFE_C2, B43_PHY_HT_AFE_C2_OVER, },
{ B43_PHY_HT_AFE_C3, B43_PHY_HT_AFE_C3_OVER, },
};
static const u16 radio_r[] = { R2059_C1, R2059_C2, R2059_C3, };
int core;
if (core_sel == 0) {
b43err(dev->wl, "RSSI selection for core off not implemented yet\n");
} else {
for (core = 0; core < 3; core++) {
/* Check if caller requested a one specific core */
if ((core_sel == 1 && core != 0) ||
(core_sel == 2 && core != 1) ||
(core_sel == 3 && core != 2))
continue;
switch (rssi_type) {
case HT_RSSI_TSSI_2G:
b43_phy_set(dev, ctl_regs[core][0], 0x3 << 8);
b43_phy_set(dev, ctl_regs[core][0], 0x3 << 10);
b43_phy_set(dev, ctl_regs[core][1], 0x1 << 9);
b43_phy_set(dev, ctl_regs[core][1], 0x1 << 10);
b43_radio_set(dev, R2059_C3 | 0xbf, 0x1);
b43_radio_write(dev, radio_r[core] | 0x159,
0x11);
break;
default:
b43err(dev->wl, "RSSI selection for type %d not implemented yet\n",
rssi_type);
}
}
}
}
static void b43_phy_ht_poll_rssi(struct b43_wldev *dev, enum ht_rssi_type type,
s32 *buf, u8 nsamp)
{
u16 phy_regs_values[12];
static const u16 phy_regs_to_save[] = {
B43_PHY_HT_AFE_C1, B43_PHY_HT_AFE_C1_OVER,
0x848, 0x841,
B43_PHY_HT_AFE_C2, B43_PHY_HT_AFE_C2_OVER,
0x868, 0x861,
B43_PHY_HT_AFE_C3, B43_PHY_HT_AFE_C3_OVER,
0x888, 0x881,
};
u16 tmp[3];
int i;
for (i = 0; i < 12; i++)
phy_regs_values[i] = b43_phy_read(dev, phy_regs_to_save[i]);
b43_phy_ht_rssi_select(dev, 5, type);
for (i = 0; i < 6; i++)
buf[i] = 0;
for (i = 0; i < nsamp; i++) {
tmp[0] = b43_phy_read(dev, B43_PHY_HT_RSSI_C1);
tmp[1] = b43_phy_read(dev, B43_PHY_HT_RSSI_C2);
tmp[2] = b43_phy_read(dev, B43_PHY_HT_RSSI_C3);
buf[0] += ((s8)((tmp[0] & 0x3F) << 2)) >> 2;
buf[1] += ((s8)(((tmp[0] >> 8) & 0x3F) << 2)) >> 2;
buf[2] += ((s8)((tmp[1] & 0x3F) << 2)) >> 2;
buf[3] += ((s8)(((tmp[1] >> 8) & 0x3F) << 2)) >> 2;
buf[4] += ((s8)((tmp[2] & 0x3F) << 2)) >> 2;
buf[5] += ((s8)(((tmp[2] >> 8) & 0x3F) << 2)) >> 2;
}
for (i = 0; i < 12; i++)
b43_phy_write(dev, phy_regs_to_save[i], phy_regs_values[i]);
}
/**************************************************
* Tx/Rx
**************************************************/
static void b43_phy_ht_tx_power_fix(struct b43_wldev *dev)
{
int i;
for (i = 0; i < 3; i++) {
u16 mask;
u32 tmp = b43_httab_read(dev, B43_HTTAB32(26, 0xE8));
if (0) /* FIXME */
mask = 0x2 << (i * 4);
else
mask = 0;
b43_phy_mask(dev, B43_PHY_EXTG(0x108), mask);
b43_httab_write(dev, B43_HTTAB16(7, 0x110 + i), tmp >> 16);
b43_httab_write(dev, B43_HTTAB8(13, 0x63 + (i * 4)),
tmp & 0xFF);
b43_httab_write(dev, B43_HTTAB8(13, 0x73 + (i * 4)),
tmp & 0xFF);
}
}
static void b43_phy_ht_tx_power_ctl(struct b43_wldev *dev, bool enable)
{
struct b43_phy_ht *phy_ht = dev->phy.ht;
u16 en_bits = B43_PHY_HT_TXPCTL_CMD_C1_COEFF |
B43_PHY_HT_TXPCTL_CMD_C1_HWPCTLEN |
B43_PHY_HT_TXPCTL_CMD_C1_PCTLEN;
static const u16 cmd_regs[3] = { B43_PHY_HT_TXPCTL_CMD_C1,
B43_PHY_HT_TXPCTL_CMD_C2,
B43_PHY_HT_TXPCTL_CMD_C3 };
static const u16 status_regs[3] = { B43_PHY_HT_TX_PCTL_STATUS_C1,
B43_PHY_HT_TX_PCTL_STATUS_C2,
B43_PHY_HT_TX_PCTL_STATUS_C3 };
int i;
if (!enable) {
if (b43_phy_read(dev, B43_PHY_HT_TXPCTL_CMD_C1) & en_bits) {
/* We disable enabled TX pwr ctl, save it's state */
for (i = 0; i < 3; i++)
phy_ht->tx_pwr_idx[i] =
b43_phy_read(dev, status_regs[i]);
}
b43_phy_mask(dev, B43_PHY_HT_TXPCTL_CMD_C1, ~en_bits);
} else {
b43_phy_set(dev, B43_PHY_HT_TXPCTL_CMD_C1, en_bits);
if (b43_current_band(dev->wl) == NL80211_BAND_5GHZ) {
for (i = 0; i < 3; i++)
b43_phy_write(dev, cmd_regs[i], 0x32);
}
for (i = 0; i < 3; i++)
if (phy_ht->tx_pwr_idx[i] <=
B43_PHY_HT_TXPCTL_CMD_C1_INIT)
b43_phy_write(dev, cmd_regs[i],
phy_ht->tx_pwr_idx[i]);
}
phy_ht->tx_pwr_ctl = enable;
}
static void b43_phy_ht_tx_power_ctl_idle_tssi(struct b43_wldev *dev)
{
struct b43_phy_ht *phy_ht = dev->phy.ht;
static const u16 base[] = { 0x840, 0x860, 0x880 };
u16 save_regs[3][3];
s32 rssi_buf[6];
int core;
for (core = 0; core < 3; core++) {
save_regs[core][1] = b43_phy_read(dev, base[core] + 6);
save_regs[core][2] = b43_phy_read(dev, base[core] + 7);
save_regs[core][0] = b43_phy_read(dev, base[core] + 0);
b43_phy_write(dev, base[core] + 6, 0);
b43_phy_mask(dev, base[core] + 7, ~0xF); /* 0xF? Or just 0x6? */
b43_phy_set(dev, base[core] + 0, 0x0400);
b43_phy_set(dev, base[core] + 0, 0x1000);
}
b43_phy_ht_tx_tone(dev);
udelay(20);
b43_phy_ht_poll_rssi(dev, HT_RSSI_TSSI_2G, rssi_buf, 1);
b43_phy_ht_stop_playback(dev);
b43_phy_ht_reset_cca(dev);
phy_ht->idle_tssi[0] = rssi_buf[0] & 0xff;
phy_ht->idle_tssi[1] = rssi_buf[2] & 0xff;
phy_ht->idle_tssi[2] = rssi_buf[4] & 0xff;
for (core = 0; core < 3; core++) {
b43_phy_write(dev, base[core] + 0, save_regs[core][0]);
b43_phy_write(dev, base[core] + 6, save_regs[core][1]);
b43_phy_write(dev, base[core] + 7, save_regs[core][2]);
}
}
static void b43_phy_ht_tssi_setup(struct b43_wldev *dev)
{
static const u16 routing[] = { R2059_C1, R2059_C2, R2059_C3, };
int core;
/* 0x159 is probably TX_SSI_MUX or TSSIG (by comparing to N-PHY) */
for (core = 0; core < 3; core++) {
b43_radio_set(dev, 0x8bf, 0x1);
b43_radio_write(dev, routing[core] | 0x0159, 0x0011);
}
}
static void b43_phy_ht_tx_power_ctl_setup(struct b43_wldev *dev)
{
struct b43_phy_ht *phy_ht = dev->phy.ht;
struct ssb_sprom *sprom = dev->dev->bus_sprom;
u8 *idle = phy_ht->idle_tssi;
u8 target[3];
s16 a1[3], b0[3], b1[3];
u16 freq = dev->phy.chandef->chan->center_freq;
int i, c;
if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ) {
for (c = 0; c < 3; c++) {
target[c] = sprom->core_pwr_info[c].maxpwr_2g;
a1[c] = sprom->core_pwr_info[c].pa_2g[0];
b0[c] = sprom->core_pwr_info[c].pa_2g[1];
b1[c] = sprom->core_pwr_info[c].pa_2g[2];
}
} else if (freq >= 4900 && freq < 5100) {
for (c = 0; c < 3; c++) {
target[c] = sprom->core_pwr_info[c].maxpwr_5gl;
a1[c] = sprom->core_pwr_info[c].pa_5gl[0];
b0[c] = sprom->core_pwr_info[c].pa_5gl[1];
b1[c] = sprom->core_pwr_info[c].pa_5gl[2];
}
} else if (freq >= 5100 && freq < 5500) {
for (c = 0; c < 3; c++) {
target[c] = sprom->core_pwr_info[c].maxpwr_5g;
a1[c] = sprom->core_pwr_info[c].pa_5g[0];
b0[c] = sprom->core_pwr_info[c].pa_5g[1];
b1[c] = sprom->core_pwr_info[c].pa_5g[2];
}
} else if (freq >= 5500) {
for (c = 0; c < 3; c++) {
target[c] = sprom->core_pwr_info[c].maxpwr_5gh;
a1[c] = sprom->core_pwr_info[c].pa_5gh[0];
b0[c] = sprom->core_pwr_info[c].pa_5gh[1];
b1[c] = sprom->core_pwr_info[c].pa_5gh[2];
}
} else {
target[0] = target[1] = target[2] = 52;
a1[0] = a1[1] = a1[2] = -424;
b0[0] = b0[1] = b0[2] = 5612;
b1[0] = b1[1] = b1[2] = -1393;
}
b43_phy_set(dev, B43_PHY_HT_TSSIMODE, B43_PHY_HT_TSSIMODE_EN);
b43_phy_mask(dev, B43_PHY_HT_TXPCTL_CMD_C1,
~B43_PHY_HT_TXPCTL_CMD_C1_PCTLEN & 0xFFFF);
/* TODO: Does it depend on sprom->fem.ghz2.tssipos? */
b43_phy_set(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI, 0x4000);
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C1,
~B43_PHY_HT_TXPCTL_CMD_C1_INIT, 0x19);
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C2,
~B43_PHY_HT_TXPCTL_CMD_C2_INIT, 0x19);
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C3,
~B43_PHY_HT_TXPCTL_CMD_C3_INIT, 0x19);
b43_phy_set(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI,
B43_PHY_HT_TXPCTL_IDLE_TSSI_BINF);
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI,
~B43_PHY_HT_TXPCTL_IDLE_TSSI_C1,
idle[0] << B43_PHY_HT_TXPCTL_IDLE_TSSI_C1_SHIFT);
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI,
~B43_PHY_HT_TXPCTL_IDLE_TSSI_C2,
idle[1] << B43_PHY_HT_TXPCTL_IDLE_TSSI_C2_SHIFT);
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI2,
~B43_PHY_HT_TXPCTL_IDLE_TSSI2_C3,
idle[2] << B43_PHY_HT_TXPCTL_IDLE_TSSI2_C3_SHIFT);
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_N, ~B43_PHY_HT_TXPCTL_N_TSSID,
0xf0);
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_N, ~B43_PHY_HT_TXPCTL_N_NPTIL2,
0x3 << B43_PHY_HT_TXPCTL_N_NPTIL2_SHIFT);
#if 0
/* TODO: what to mask/set? */
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C1, 0x800, 0)
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C1, 0x400, 0)
#endif
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_TARG_PWR,
~B43_PHY_HT_TXPCTL_TARG_PWR_C1,
target[0] << B43_PHY_HT_TXPCTL_TARG_PWR_C1_SHIFT);
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_TARG_PWR,
~B43_PHY_HT_TXPCTL_TARG_PWR_C2 & 0xFFFF,
target[1] << B43_PHY_HT_TXPCTL_TARG_PWR_C2_SHIFT);
b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_TARG_PWR2,
~B43_PHY_HT_TXPCTL_TARG_PWR2_C3,
target[2] << B43_PHY_HT_TXPCTL_TARG_PWR2_C3_SHIFT);
for (c = 0; c < 3; c++) {
s32 num, den, pwr;
u32 regval[64];
for (i = 0; i < 64; i++) {
num = 8 * (16 * b0[c] + b1[c] * i);
den = 32768 + a1[c] * i;
pwr = max((4 * num + den / 2) / den, -8);
regval[i] = pwr;
}
b43_httab_write_bulk(dev, B43_HTTAB16(26 + c, 0), 64, regval);
}
}
/**************************************************
* Channel switching ops.
**************************************************/
static void b43_phy_ht_spur_avoid(struct b43_wldev *dev,
struct ieee80211_channel *new_channel)
{
struct bcma_device *core = dev->dev->bdev;
int spuravoid = 0;
/* Check for 13 and 14 is just a guess, we don't have enough logs. */
if (new_channel->hw_value == 13 || new_channel->hw_value == 14)
spuravoid = 1;
bcma_core_pll_ctl(core, B43_BCMA_CLKCTLST_PHY_PLL_REQ, 0, false);
bcma_pmu_spuravoid_pllupdate(&core->bus->drv_cc, spuravoid);
bcma_core_pll_ctl(core,
B43_BCMA_CLKCTLST_80211_PLL_REQ |
B43_BCMA_CLKCTLST_PHY_PLL_REQ,
B43_BCMA_CLKCTLST_80211_PLL_ST |
B43_BCMA_CLKCTLST_PHY_PLL_ST, false);
b43_mac_switch_freq(dev, spuravoid);
b43_wireless_core_phy_pll_reset(dev);
if (spuravoid)
b43_phy_set(dev, B43_PHY_HT_BBCFG, B43_PHY_HT_BBCFG_RSTRX);
else
b43_phy_mask(dev, B43_PHY_HT_BBCFG,
~B43_PHY_HT_BBCFG_RSTRX & 0xFFFF);
b43_phy_ht_reset_cca(dev);
}
static void b43_phy_ht_channel_setup(struct b43_wldev *dev,
const struct b43_phy_ht_channeltab_e_phy *e,
struct ieee80211_channel *new_channel)
{
if (new_channel->band == NL80211_BAND_5GHZ) {
/* Switch to 2 GHz for a moment to access B-PHY regs */
b43_phy_mask(dev, B43_PHY_HT_BANDCTL, ~B43_PHY_HT_BANDCTL_5GHZ);
b43_phy_ht_bphy_reset(dev, true);
/* Switch to 5 GHz */
b43_phy_set(dev, B43_PHY_HT_BANDCTL, B43_PHY_HT_BANDCTL_5GHZ);
} else {
/* Switch to 2 GHz */
b43_phy_mask(dev, B43_PHY_HT_BANDCTL, ~B43_PHY_HT_BANDCTL_5GHZ);
b43_phy_ht_bphy_reset(dev, false);
}
b43_phy_write(dev, B43_PHY_HT_BW1, e->bw1);
b43_phy_write(dev, B43_PHY_HT_BW2, e->bw2);
b43_phy_write(dev, B43_PHY_HT_BW3, e->bw3);
b43_phy_write(dev, B43_PHY_HT_BW4, e->bw4);
b43_phy_write(dev, B43_PHY_HT_BW5, e->bw5);
b43_phy_write(dev, B43_PHY_HT_BW6, e->bw6);
if (new_channel->hw_value == 14) {
b43_phy_ht_classifier(dev, B43_PHY_HT_CLASS_CTL_OFDM_EN, 0);
b43_phy_set(dev, B43_PHY_HT_TEST, 0x0800);
} else {
b43_phy_ht_classifier(dev, B43_PHY_HT_CLASS_CTL_OFDM_EN,
B43_PHY_HT_CLASS_CTL_OFDM_EN);
if (new_channel->band == NL80211_BAND_2GHZ)
b43_phy_mask(dev, B43_PHY_HT_TEST, ~0x840);
}
if (1) /* TODO: On N it's for early devices only, what about HT? */
b43_phy_ht_tx_power_fix(dev);
b43_phy_ht_spur_avoid(dev, new_channel);
b43_phy_write(dev, 0x017e, 0x3830);
}
static int b43_phy_ht_set_channel(struct b43_wldev *dev,
struct ieee80211_channel *channel,
enum nl80211_channel_type channel_type)
{
struct b43_phy *phy = &dev->phy;
const struct b43_phy_ht_channeltab_e_radio2059 *chent_r2059 = NULL;
if (phy->radio_ver == 0x2059) {
chent_r2059 = b43_phy_ht_get_channeltab_e_r2059(dev,
channel->center_freq);
if (!chent_r2059)
return -ESRCH;
} else {
return -ESRCH;
}
/* TODO: In case of N-PHY some bandwidth switching goes here */
if (phy->radio_ver == 0x2059) {
b43_radio_2059_channel_setup(dev, chent_r2059);
b43_phy_ht_channel_setup(dev, &(chent_r2059->phy_regs),
channel);
} else {
return -ESRCH;
}
return 0;
}
/**************************************************
* Basic PHY ops.
**************************************************/
static int b43_phy_ht_op_allocate(struct b43_wldev *dev)
{
struct b43_phy_ht *phy_ht;
phy_ht = kzalloc(sizeof(*phy_ht), GFP_KERNEL);
if (!phy_ht)
return -ENOMEM;
dev->phy.ht = phy_ht;
return 0;
}
static void b43_phy_ht_op_prepare_structs(struct b43_wldev *dev)
{
struct b43_phy *phy = &dev->phy;
struct b43_phy_ht *phy_ht = phy->ht;
int i;
memset(phy_ht, 0, sizeof(*phy_ht));
phy_ht->tx_pwr_ctl = true;
for (i = 0; i < 3; i++)
phy_ht->tx_pwr_idx[i] = B43_PHY_HT_TXPCTL_CMD_C1_INIT + 1;
for (i = 0; i < 3; i++)
phy_ht->bb_mult_save[i] = -1;
}
static int b43_phy_ht_op_init(struct b43_wldev *dev)
{
struct b43_phy_ht *phy_ht = dev->phy.ht;
u16 tmp;
u16 clip_state[3];
bool saved_tx_pwr_ctl;
if (dev->dev->bus_type != B43_BUS_BCMA) {
b43err(dev->wl, "HT-PHY is supported only on BCMA bus!\n");
return -EOPNOTSUPP;
}
b43_phy_ht_tables_init(dev);
b43_phy_mask(dev, 0x0be, ~0x2);
b43_phy_set(dev, 0x23f, 0x7ff);
b43_phy_set(dev, 0x240, 0x7ff);
b43_phy_set(dev, 0x241, 0x7ff);
b43_phy_ht_zero_extg(dev);
b43_phy_mask(dev, B43_PHY_EXTG(0), ~0x3);
b43_phy_write(dev, B43_PHY_HT_AFE_C1_OVER, 0);
b43_phy_write(dev, B43_PHY_HT_AFE_C2_OVER, 0);
b43_phy_write(dev, B43_PHY_HT_AFE_C3_OVER, 0);
b43_phy_write(dev, B43_PHY_EXTG(0x103), 0x20);
b43_phy_write(dev, B43_PHY_EXTG(0x101), 0x20);
b43_phy_write(dev, 0x20d, 0xb8);
b43_phy_write(dev, B43_PHY_EXTG(0x14f), 0xc8);
b43_phy_write(dev, 0x70, 0x50);
b43_phy_write(dev, 0x1ff, 0x30);
if (b43_current_band(dev->wl) == NL80211_BAND_5GHZ)
b43_phy_ht_classifier(dev, B43_PHY_HT_CLASS_CTL_CCK_EN, 0);
else
b43_phy_ht_classifier(dev, B43_PHY_HT_CLASS_CTL_CCK_EN,
B43_PHY_HT_CLASS_CTL_CCK_EN);
b43_phy_set(dev, 0xb1, 0x91);
b43_phy_write(dev, 0x32f, 0x0003);
b43_phy_write(dev, 0x077, 0x0010);
b43_phy_write(dev, 0x0b4, 0x0258);
b43_phy_mask(dev, 0x17e, ~0x4000);
b43_phy_write(dev, 0x0b9, 0x0072);
b43_httab_write_few(dev, B43_HTTAB16(7, 0x14e), 2, 0x010f, 0x010f);
b43_httab_write_few(dev, B43_HTTAB16(7, 0x15e), 2, 0x010f, 0x010f);
b43_httab_write_few(dev, B43_HTTAB16(7, 0x16e), 2, 0x010f, 0x010f);
b43_phy_ht_afe_unk1(dev);
b43_httab_write_few(dev, B43_HTTAB16(7, 0x130), 9, 0x777, 0x111, 0x111,
0x777, 0x111, 0x111, 0x777, 0x111, 0x111);
b43_httab_write(dev, B43_HTTAB16(7, 0x120), 0x0777);
b43_httab_write(dev, B43_HTTAB16(7, 0x124), 0x0777);
b43_httab_write(dev, B43_HTTAB16(8, 0x00), 0x02);
b43_httab_write(dev, B43_HTTAB16(8, 0x10), 0x02);
b43_httab_write(dev, B43_HTTAB16(8, 0x20), 0x02);
b43_httab_write_few(dev, B43_HTTAB16(8, 0x08), 4,
0x8e, 0x96, 0x96, 0x96);
b43_httab_write_few(dev, B43_HTTAB16(8, 0x18), 4,
0x8f, 0x9f, 0x9f, 0x9f);
b43_httab_write_few(dev, B43_HTTAB16(8, 0x28), 4,
0x8f, 0x9f, 0x9f, 0x9f);
b43_httab_write_few(dev, B43_HTTAB16(8, 0x0c), 4, 0x2, 0x2, 0x2, 0x2);
b43_httab_write_few(dev, B43_HTTAB16(8, 0x1c), 4, 0x2, 0x2, 0x2, 0x2);
b43_httab_write_few(dev, B43_HTTAB16(8, 0x2c), 4, 0x2, 0x2, 0x2, 0x2);
b43_phy_maskset(dev, 0x0280, 0xff00, 0x3e);
b43_phy_maskset(dev, 0x0283, 0xff00, 0x3e);
b43_phy_maskset(dev, B43_PHY_OFDM(0x0141), 0xff00, 0x46);
b43_phy_maskset(dev, 0x0283, 0xff00, 0x40);
b43_httab_write_few(dev, B43_HTTAB16(00, 0x8), 4,
0x09, 0x0e, 0x13, 0x18);
b43_httab_write_few(dev, B43_HTTAB16(01, 0x8), 4,
0x09, 0x0e, 0x13, 0x18);
/* TODO: Did wl mean 2 instead of 40? */
b43_httab_write_few(dev, B43_HTTAB16(40, 0x8), 4,
0x09, 0x0e, 0x13, 0x18);
b43_phy_maskset(dev, B43_PHY_OFDM(0x24), 0x3f, 0xd);
b43_phy_maskset(dev, B43_PHY_OFDM(0x64), 0x3f, 0xd);
b43_phy_maskset(dev, B43_PHY_OFDM(0xa4), 0x3f, 0xd);
b43_phy_set(dev, B43_PHY_EXTG(0x060), 0x1);
b43_phy_set(dev, B43_PHY_EXTG(0x064), 0x1);
b43_phy_set(dev, B43_PHY_EXTG(0x080), 0x1);
b43_phy_set(dev, B43_PHY_EXTG(0x084), 0x1);
/* Copy some tables entries */
tmp = b43_httab_read(dev, B43_HTTAB16(7, 0x144));
b43_httab_write(dev, B43_HTTAB16(7, 0x14a), tmp);
tmp = b43_httab_read(dev, B43_HTTAB16(7, 0x154));
b43_httab_write(dev, B43_HTTAB16(7, 0x15a), tmp);
tmp = b43_httab_read(dev, B43_HTTAB16(7, 0x164));
b43_httab_write(dev, B43_HTTAB16(7, 0x16a), tmp);
/* Reset CCA */
b43_phy_force_clock(dev, true);
tmp = b43_phy_read(dev, B43_PHY_HT_BBCFG);
b43_phy_write(dev, B43_PHY_HT_BBCFG, tmp | B43_PHY_HT_BBCFG_RSTCCA);
b43_phy_write(dev, B43_PHY_HT_BBCFG, tmp & ~B43_PHY_HT_BBCFG_RSTCCA);
b43_phy_force_clock(dev, false);
b43_mac_phy_clock_set(dev, true);
b43_phy_ht_pa_override(dev, false);
b43_phy_ht_force_rf_sequence(dev, B43_PHY_HT_RF_SEQ_TRIG_RX2TX);
b43_phy_ht_force_rf_sequence(dev, B43_PHY_HT_RF_SEQ_TRIG_RST2RX);
b43_phy_ht_pa_override(dev, true);
/* TODO: Should we restore it? Or store it in global PHY info? */
b43_phy_ht_classifier(dev, 0, 0);
b43_phy_ht_read_clip_detection(dev, clip_state);
if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ)
b43_phy_ht_bphy_init(dev);
b43_httab_write_bulk(dev, B43_HTTAB32(0x1a, 0xc0),
B43_HTTAB_1A_C0_LATE_SIZE, b43_httab_0x1a_0xc0_late);
saved_tx_pwr_ctl = phy_ht->tx_pwr_ctl;
b43_phy_ht_tx_power_fix(dev);
b43_phy_ht_tx_power_ctl(dev, false);
b43_phy_ht_tx_power_ctl_idle_tssi(dev);
b43_phy_ht_tx_power_ctl_setup(dev);
b43_phy_ht_tssi_setup(dev);
b43_phy_ht_tx_power_ctl(dev, saved_tx_pwr_ctl);
return 0;
}
static void b43_phy_ht_op_free(struct b43_wldev *dev)
{
struct b43_phy *phy = &dev->phy;
struct b43_phy_ht *phy_ht = phy->ht;
kfree(phy_ht);
phy->ht = NULL;
}
/* https://bcm-v4.sipsolutions.net/802.11/Radio/Switch%20Radio */
static void b43_phy_ht_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_HT_RF_CTL_CMD,
~B43_PHY_HT_RF_CTL_CMD_CHIP0_PU);
} else {
if (dev->phy.radio_ver == 0x2059)
b43_radio_2059_init(dev);
else
B43_WARN_ON(1);
b43_switch_channel(dev, dev->phy.channel);
}
}
static void b43_phy_ht_op_switch_analog(struct b43_wldev *dev, bool on)
{
if (on) {
b43_phy_write(dev, B43_PHY_HT_AFE_C1, 0x00cd);
b43_phy_write(dev, B43_PHY_HT_AFE_C1_OVER, 0x0000);
b43_phy_write(dev, B43_PHY_HT_AFE_C2, 0x00cd);
b43_phy_write(dev, B43_PHY_HT_AFE_C2_OVER, 0x0000);
b43_phy_write(dev, B43_PHY_HT_AFE_C3, 0x00cd);
b43_phy_write(dev, B43_PHY_HT_AFE_C3_OVER, 0x0000);
} else {
b43_phy_write(dev, B43_PHY_HT_AFE_C1_OVER, 0x07ff);
b43_phy_write(dev, B43_PHY_HT_AFE_C1, 0x00fd);
b43_phy_write(dev, B43_PHY_HT_AFE_C2_OVER, 0x07ff);
b43_phy_write(dev, B43_PHY_HT_AFE_C2, 0x00fd);
b43_phy_write(dev, B43_PHY_HT_AFE_C3_OVER, 0x07ff);
b43_phy_write(dev, B43_PHY_HT_AFE_C3, 0x00fd);
}
}
static int b43_phy_ht_op_switch_channel(struct b43_wldev *dev,
unsigned int new_channel)
{
struct ieee80211_channel *channel = dev->wl->hw->conf.chandef.chan;
enum nl80211_channel_type channel_type =
cfg80211_get_chandef_type(&dev->wl->hw->conf.chandef);
if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ) {
if ((new_channel < 1) || (new_channel > 14))
return -EINVAL;
} else {
return -EINVAL;
}
return b43_phy_ht_set_channel(dev, channel, channel_type);
}
static unsigned int b43_phy_ht_op_get_default_chan(struct b43_wldev *dev)
{
if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ)
return 11;
return 36;
}
/**************************************************
* R/W ops.
**************************************************/
static void b43_phy_ht_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
u16 set)
{
b43_write16f(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_ht_op_radio_read(struct b43_wldev *dev, u16 reg)
{
/* HT-PHY needs 0x200 for read access */
reg |= 0x200;
b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, reg);
return b43_read16(dev, B43_MMIO_RADIO24_DATA);
}
static void b43_phy_ht_op_radio_write(struct b43_wldev *dev, u16 reg,
u16 value)
{
b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, reg);
b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
}
static enum b43_txpwr_result
b43_phy_ht_op_recalc_txpower(struct b43_wldev *dev, bool ignore_tssi)
{
return B43_TXPWR_RES_DONE;
}
static void b43_phy_ht_op_adjust_txpower(struct b43_wldev *dev)
{
}
/**************************************************
* PHY ops struct.
**************************************************/
const struct b43_phy_operations b43_phyops_ht = {
.allocate = b43_phy_ht_op_allocate,
.free = b43_phy_ht_op_free,
.prepare_structs = b43_phy_ht_op_prepare_structs,
.init = b43_phy_ht_op_init,
.phy_maskset = b43_phy_ht_op_maskset,
.radio_read = b43_phy_ht_op_radio_read,
.radio_write = b43_phy_ht_op_radio_write,
.software_rfkill = b43_phy_ht_op_software_rfkill,
.switch_analog = b43_phy_ht_op_switch_analog,
.switch_channel = b43_phy_ht_op_switch_channel,
.get_default_chan = b43_phy_ht_op_get_default_chan,
.recalc_txpower = b43_phy_ht_op_recalc_txpower,
.adjust_txpower = b43_phy_ht_op_adjust_txpower,
};