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linux/drivers/net/wireless/b43/phy_lcn.c
Rafał Miłecki 25c1556663 b43: flush some writes on Broadcom MIPS SoCs 
Access to PHY and radio registers is indirect on Broadcom hardware and
it seems that addressing on some MIPS SoCs may require flushing. So far
this problem was noticed on 0x4716 SoC only (marketing names: BCM4717,
BCM4718).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-25 16:00:42 -04:00

856 lines
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/*
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.
This file incorporates work covered by the following copyright and
permission notice:
Copyright (c) 2010 Broadcom Corporation
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
*/
#include <linux/slab.h>
#include "b43.h"
#include "phy_lcn.h"
#include "tables_phy_lcn.h"
#include "main.h"
struct lcn_tx_gains {
u16 gm_gain;
u16 pga_gain;
u16 pad_gain;
u16 dac_gain;
};
struct lcn_tx_iir_filter {
u8 type;
u16 values[16];
};
enum lcn_sense_type {
B43_SENSE_TEMP,
B43_SENSE_VBAT,
};
/**************************************************
* 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_get_pa_gain */
static u16 b43_phy_lcn_get_pa_gain(struct b43_wldev *dev)
{
return (b43_phy_read(dev, 0x4fb) & 0x7f00) >> 8;
}
/* wlc_lcnphy_set_dac_gain */
static void b43_phy_lcn_set_dac_gain(struct b43_wldev *dev, u16 dac_gain)
{
u16 dac_ctrl;
dac_ctrl = b43_phy_read(dev, 0x439);
dac_ctrl = dac_ctrl & 0xc7f;
dac_ctrl = dac_ctrl | (dac_gain << 7);
b43_phy_maskset(dev, 0x439, ~0xfff, dac_ctrl);
}
/* wlc_lcnphy_set_bbmult */
static void b43_phy_lcn_set_bbmult(struct b43_wldev *dev, u8 m0)
{
b43_lcntab_write(dev, B43_LCNTAB16(0x00, 0x57), m0 << 8);
}
/* 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);
b43_phy_maskset(dev, 0x429, ~0xf, 0x9);
b43_phy_maskset(dev, 0x429, ~(0x3f << 4), 0xe << 4);
if (dev->phy.rev == 1) {
b43_phy_maskset(dev, 0x423, ~0xff, 0x46);
b43_phy_maskset(dev, 0x411, ~0xff, 1);
b43_phy_set(dev, 0x434, 0xff); /* FIXME: update to wl */
/* TODO: wl operates on PHY 0x416, brcmsmac is outdated here */
b43_phy_maskset(dev, 0x656, ~0xf, 2);
b43_phy_set(dev, 0x44d, 4);
b43_radio_set(dev, 0x0f7, 0x4);
b43_radio_mask(dev, 0x0f1, ~0x3);
b43_radio_maskset(dev, 0x0f2, ~0xf8, 0x90);
b43_radio_maskset(dev, 0x0f3, ~0x3, 0x2);
b43_radio_maskset(dev, 0x0f3, ~0xf0, 0xa0);
b43_radio_set(dev, 0x11f, 0x2);
b43_phy_lcn_clear_tx_power_offsets(dev);
/* TODO: something more? */
}
}
/* wlc_lcnphy_vbat_temp_sense_setup */
static void b43_phy_lcn_sense_setup(struct b43_wldev *dev,
enum lcn_sense_type sense_type)
{
u8 auxpga_vmidcourse, auxpga_vmidfine, auxpga_gain;
u16 auxpga_vmid;
u8 tx_pwr_idx;
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;
msleep(1);
/* Save */
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]);
b43_mac_suspend(dev);
save_radio_4a4 = b43_radio_read(dev, 0x4a4);
/* wlc_lcnphy_set_tx_pwr_ctrl(pi, LCNPHY_TX_PWR_CTRL_OFF); */
tx_pwr_idx = dev->phy.lcn->tx_pwr_curr_idx;
/* Setup */
/* TODO: wlc_lcnphy_set_tx_pwr_by_index(pi, 127); */
b43_radio_set(dev, 0x007, 0x1);
b43_radio_set(dev, 0x0ff, 0x10);
b43_radio_set(dev, 0x11f, 0x4);
b43_phy_mask(dev, 0x503, ~0x1);
b43_phy_mask(dev, 0x503, ~0x4);
b43_phy_mask(dev, 0x4a4, ~0x4000);
b43_phy_mask(dev, 0x4a4, (u16) ~0x8000);
b43_phy_mask(dev, 0x4d0, ~0x20);
b43_phy_set(dev, 0x4a5, 0xff);
b43_phy_maskset(dev, 0x4a5, ~0x7000, 0x5000);
b43_phy_mask(dev, 0x4a5, ~0x700);
b43_phy_maskset(dev, 0x40d, ~0xff, 64);
b43_phy_maskset(dev, 0x40d, ~0x700, 0x600);
b43_phy_maskset(dev, 0x4a2, ~0xff, 64);
b43_phy_maskset(dev, 0x4a2, ~0x700, 0x600);
b43_phy_maskset(dev, 0x4d9, ~0x70, 0x20);
b43_phy_maskset(dev, 0x4d9, ~0x700, 0x300);
b43_phy_maskset(dev, 0x4d9, ~0x7000, 0x1000);
b43_phy_mask(dev, 0x4da, ~0x1000);
b43_phy_set(dev, 0x4da, 0x2000);
b43_phy_set(dev, 0x4a6, 0x8000);
b43_radio_write(dev, 0x025, 0xc);
b43_radio_set(dev, 0x005, 0x8);
b43_phy_set(dev, 0x938, 0x4);
b43_phy_set(dev, 0x939, 0x4);
b43_phy_set(dev, 0x4a4, 0x1000);
/* FIXME: don't hardcode */
b43_lcntab_write(dev, B43_LCNTAB16(0x8, 0x6), 0x640);
switch (sense_type) {
case B43_SENSE_TEMP:
b43_phy_set(dev, 0x4d7, 0x8);
b43_phy_maskset(dev, 0x4d7, ~0x7000, 0x1000);
auxpga_vmidcourse = 8;
auxpga_vmidfine = 0x4;
auxpga_gain = 2;
b43_radio_set(dev, 0x082, 0x20);
break;
case B43_SENSE_VBAT:
b43_phy_set(dev, 0x4d7, 0x8);
b43_phy_maskset(dev, 0x4d7, ~0x7000, 0x3000);
auxpga_vmidcourse = 7;
auxpga_vmidfine = 0xa;
auxpga_gain = 2;
break;
}
auxpga_vmid = (0x200 | (auxpga_vmidcourse << 4) | auxpga_vmidfine);
b43_phy_set(dev, 0x4d8, 0x1);
b43_phy_maskset(dev, 0x4d8, ~(0x3ff << 2), auxpga_vmid << 2);
b43_phy_set(dev, 0x4d8, 0x2);
b43_phy_maskset(dev, 0x4d8, ~(0x7 << 12), auxpga_gain << 12);
b43_phy_set(dev, 0x4d0, 0x20);
b43_radio_write(dev, 0x112, 0x6);
b43_dummy_transmission(dev, true, false);
/* Wait if not done */
if (!(b43_phy_read(dev, 0x476) & 0x8000))
udelay(10);
/* Restore */
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]);
/* TODO: wlc_lcnphy_set_tx_pwr_by_index(tx_pwr_idx) */
b43_radio_write(dev, 0x4a4, save_radio_4a4);
b43_mac_enable(dev);
msleep(1);
}
static bool b43_phy_lcn_load_tx_iir_cck_filter(struct b43_wldev *dev,
u8 filter_type)
{
int i, j;
u16 phy_regs[] = { 0x910, 0x91e, 0x91f, 0x924, 0x925, 0x926, 0x920,
0x921, 0x927, 0x928, 0x929, 0x922, 0x923, 0x930,
0x931, 0x932 };
/* Table is from brcmsmac, values for type 25 were outdated, probably
* others need updating too */
struct lcn_tx_iir_filter tx_iir_filters_cck[] = {
{ 0, { 1, 415, 1874, 64, 128, 64, 792, 1656, 64, 128, 64, 778,
1582, 64, 128, 64 } },
{ 1, { 1, 402, 1847, 259, 59, 259, 671, 1794, 68, 54, 68, 608,
1863, 93, 167, 93 } },
{ 2, { 1, 415, 1874, 64, 128, 64, 792, 1656, 192, 384, 192,
778, 1582, 64, 128, 64 } },
{ 3, { 1, 302, 1841, 129, 258, 129, 658, 1720, 205, 410, 205,
754, 1760, 170, 340, 170 } },
{ 20, { 1, 360, 1884, 242, 1734, 242, 752, 1720, 205, 1845, 205,
767, 1760, 256, 185, 256 } },
{ 21, { 1, 360, 1884, 149, 1874, 149, 752, 1720, 205, 1883, 205,
767, 1760, 256, 273, 256 } },
{ 22, { 1, 360, 1884, 98, 1948, 98, 752, 1720, 205, 1924, 205,
767, 1760, 256, 352, 256 } },
{ 23, { 1, 350, 1884, 116, 1966, 116, 752, 1720, 205, 2008, 205,
767, 1760, 128, 233, 128 } },
{ 24, { 1, 325, 1884, 32, 40, 32, 756, 1720, 256, 471, 256, 766,
1760, 256, 1881, 256 } },
{ 25, { 1, 299, 1884, 51, 64, 51, 736, 1720, 256, 471, 256, 765,
1760, 262, 1878, 262 } },
/* brcmsmac version { 25, { 1, 299, 1884, 51, 64, 51, 736, 1720,
* 256, 471, 256, 765, 1760, 256, 1881, 256 } }, */
{ 26, { 1, 277, 1943, 39, 117, 88, 637, 1838, 64, 192, 144, 614,
1864, 128, 384, 288 } },
{ 27, { 1, 245, 1943, 49, 147, 110, 626, 1838, 256, 768, 576,
613, 1864, 128, 384, 288 } },
{ 30, { 1, 302, 1841, 61, 122, 61, 658, 1720, 205, 410, 205,
754, 1760, 170, 340, 170 } },
};
for (i = 0; i < ARRAY_SIZE(tx_iir_filters_cck); i++) {
if (tx_iir_filters_cck[i].type == filter_type) {
for (j = 0; j < 16; j++)
b43_phy_write(dev, phy_regs[j],
tx_iir_filters_cck[i].values[j]);
return true;
}
}
return false;
}
static bool b43_phy_lcn_load_tx_iir_ofdm_filter(struct b43_wldev *dev,
u8 filter_type)
{
int i, j;
u16 phy_regs[] = { 0x90f, 0x900, 0x901, 0x906, 0x907, 0x908, 0x902,
0x903, 0x909, 0x90a, 0x90b, 0x904, 0x905, 0x90c,
0x90d, 0x90e };
struct lcn_tx_iir_filter tx_iir_filters_ofdm[] = {
{ 0, { 0, 0xa2, 0x0, 0x100, 0x100, 0x0, 0x0, 0x0, 0x100, 0x0,
0x0, 0x278, 0xfea0, 0x80, 0x100, 0x80 } },
{ 1, { 0, 374, 0xFF79, 16, 32, 16, 799, 0xFE74, 50, 32, 50, 750,
0xFE2B, 212, 0xFFCE, 212 } },
{ 2, { 0, 375, 0xFF16, 37, 76, 37, 799, 0xFE74, 32, 20, 32, 748,
0xFEF2, 128, 0xFFE2, 128 } },
};
for (i = 0; i < ARRAY_SIZE(tx_iir_filters_ofdm); i++) {
if (tx_iir_filters_ofdm[i].type == filter_type) {
for (j = 0; j < 16; j++)
b43_phy_write(dev, phy_regs[j],
tx_iir_filters_ofdm[i].values[j]);
return true;
}
}
return false;
}
/* wlc_lcnphy_set_tx_gain_override */
static void b43_phy_lcn_set_tx_gain_override(struct b43_wldev *dev, bool enable)
{
b43_phy_maskset(dev, 0x4b0, ~(0x1 << 7), enable << 7);
b43_phy_maskset(dev, 0x4b0, ~(0x1 << 14), enable << 14);
b43_phy_maskset(dev, 0x43b, ~(0x1 << 6), enable << 6);
}
/* wlc_lcnphy_set_tx_gain */
static void b43_phy_lcn_set_tx_gain(struct b43_wldev *dev,
struct lcn_tx_gains *target_gains)
{
u16 pa_gain = b43_phy_lcn_get_pa_gain(dev);
b43_phy_write(dev, 0x4b5,
(target_gains->gm_gain | (target_gains->pga_gain << 8)));
b43_phy_maskset(dev, 0x4fb, ~0x7fff,
(target_gains->pad_gain | (pa_gain << 8)));
b43_phy_write(dev, 0x4fc,
(target_gains->gm_gain | (target_gains->pga_gain << 8)));
b43_phy_maskset(dev, 0x4fd, ~0x7fff,
(target_gains->pad_gain | (pa_gain << 8)));
b43_phy_lcn_set_dac_gain(dev, target_gains->dac_gain);
b43_phy_lcn_set_tx_gain_override(dev, true);
}
/* wlc_lcnphy_tx_pwr_ctrl_init */
static void b43_phy_lcn_tx_pwr_ctl_init(struct b43_wldev *dev)
{
struct lcn_tx_gains tx_gains;
u8 bbmult;
b43_mac_suspend(dev);
if (!dev->phy.lcn->hw_pwr_ctl_capable) {
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
tx_gains.gm_gain = 4;
tx_gains.pga_gain = 12;
tx_gains.pad_gain = 12;
tx_gains.dac_gain = 0;
bbmult = 150;
} else {
tx_gains.gm_gain = 7;
tx_gains.pga_gain = 15;
tx_gains.pad_gain = 14;
tx_gains.dac_gain = 0;
bbmult = 150;
}
b43_phy_lcn_set_tx_gain(dev, &tx_gains);
b43_phy_lcn_set_bbmult(dev, bbmult);
b43_phy_lcn_sense_setup(dev, B43_SENSE_TEMP);
} else {
b43err(dev->wl, "TX power control not supported for this HW\n");
}
b43_mac_enable(dev);
}
/* wlc_lcnphy_txrx_spur_avoidance_mode */
static void b43_phy_lcn_txrx_spur_avoidance_mode(struct b43_wldev *dev,
bool enable)
{
if (enable) {
b43_phy_write(dev, 0x942, 0x7);
b43_phy_write(dev, 0x93b, ((1 << 13) + 23));
b43_phy_write(dev, 0x93c, ((1 << 13) + 1989));
b43_phy_write(dev, 0x44a, 0x084);
b43_phy_write(dev, 0x44a, 0x080);
b43_phy_write(dev, 0x6d3, 0x2222);
b43_phy_write(dev, 0x6d3, 0x2220);
} else {
b43_phy_write(dev, 0x942, 0x0);
b43_phy_write(dev, 0x93b, ((0 << 13) + 23));
b43_phy_write(dev, 0x93c, ((0 << 13) + 1989));
}
b43_mac_switch_freq(dev, enable);
}
/**************************************************
* Channel switching ops.
**************************************************/
/* wlc_lcnphy_set_chanspec_tweaks */
static void b43_phy_lcn_set_channel_tweaks(struct b43_wldev *dev, int channel)
{
struct bcma_drv_cc *cc = &dev->dev->bdev->bus->drv_cc;
b43_phy_maskset(dev, 0x448, ~0x300, (channel == 14) ? 0x200 : 0x100);
if (channel == 1 || channel == 2 || channel == 3 || channel == 4 ||
channel == 9 || channel == 10 || channel == 11 || channel == 12) {
bcma_chipco_pll_write(cc, 0x2, 0x03000c04);
bcma_chipco_pll_maskset(cc, 0x3, 0x00ffffff, 0x0);
bcma_chipco_pll_write(cc, 0x4, 0x200005c0);
bcma_cc_set32(cc, BCMA_CC_PMU_CTL, 0x400);
b43_phy_write(dev, 0x942, 0);
b43_phy_lcn_txrx_spur_avoidance_mode(dev, false);
b43_phy_maskset(dev, 0x424, (u16) ~0xff00, 0x1b00);
b43_phy_write(dev, 0x425, 0x5907);
} else {
bcma_chipco_pll_write(cc, 0x2, 0x03140c04);
bcma_chipco_pll_maskset(cc, 0x3, 0x00ffffff, 0x333333);
bcma_chipco_pll_write(cc, 0x4, 0x202c2820);
bcma_cc_set32(cc, BCMA_CC_PMU_CTL, 0x400);
b43_phy_write(dev, 0x942, 0);
b43_phy_lcn_txrx_spur_avoidance_mode(dev, true);
b43_phy_maskset(dev, 0x424, (u16) ~0xff00, 0x1f00);
b43_phy_write(dev, 0x425, 0x590a);
}
b43_phy_set(dev, 0x44a, 0x44);
b43_phy_write(dev, 0x44a, 0x80);
}
/* wlc_phy_chanspec_set_lcnphy */
static int b43_phy_lcn_set_channel(struct b43_wldev *dev,
struct ieee80211_channel *channel,
enum nl80211_channel_type channel_type)
{
static const u16 sfo_cfg[14][2] = {
{965, 1087}, {967, 1085}, {969, 1082}, {971, 1080}, {973, 1078},
{975, 1076}, {977, 1073}, {979, 1071}, {981, 1069}, {983, 1067},
{985, 1065}, {987, 1063}, {989, 1060}, {994, 1055},
};
b43_phy_lcn_set_channel_tweaks(dev, channel->hw_value);
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);
b43_phy_write(dev, 0x657, sfo_cfg[channel->hw_value - 1][0]);
b43_phy_write(dev, 0x658, sfo_cfg[channel->hw_value - 1][1]);
if (channel->hw_value == 14) {
b43_phy_maskset(dev, 0x448, ~(0x3 << 8), (2) << 8);
b43_phy_lcn_load_tx_iir_cck_filter(dev, 3);
} else {
b43_phy_maskset(dev, 0x448, ~(0x3 << 8), (1) << 8);
/* brcmsmac uses filter_type 2, we follow wl with 25 */
b43_phy_lcn_load_tx_iir_cck_filter(dev, 25);
}
/* brcmsmac uses filter_type 2, we follow wl with 0 */
b43_phy_lcn_load_tx_iir_ofdm_filter(dev, 0);
b43_phy_maskset(dev, 0x4eb, ~(0x7 << 3), 0x1 << 3);
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)
{
struct bcma_drv_cc *cc = &dev->dev->bdev->bus->drv_cc;
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);
if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
b43_phy_lcn_tx_pwr_ctl_init(dev);
b43_switch_channel(dev, dev->phy.channel);
bcma_chipco_regctl_maskset(cc, 0, 0xf, 0x9);
bcma_chipco_chipctl_maskset(cc, 0, 0, 0x03cddddd);
/* TODO */
b43_phy_set(dev, 0x448, 0x4000);
udelay(100);
b43_phy_mask(dev, 0x448, ~0x4000);
/* TODO */
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.chandef.chan;
enum nl80211_channel_type channel_type =
cfg80211_get_chandef_type(&dev->wl->hw->conf.chandef);
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 void b43_phy_lcn_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_lcn_op_radio_read(struct b43_wldev *dev, u16 reg)
{
/* LCN-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_lcn_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);
}
/**************************************************
* 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_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,
};
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