phy_lcn.c

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/*

  Broadcom B43 wireless driver
  IEEE 802.11n LCN-PHY support

  Copyright (c) 2011 Rafał Miłecki <[email protected]>

  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,
};

/* In theory it's PHY common function, move if needed */
/* brcms_b_switch_macfreq */
static void b43_phy_switch_macfreq(struct b43_wldev *dev, u8 spurmode)
{
    if (dev->dev->chip_id == 43224 || dev->dev->chip_id == 43225) {
        switch (spurmode) {
        case 2:     /* 126 Mhz */
            b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x2082);
            b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8);
            break;
        case 1:     /* 123 Mhz */
            b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x5341);
            b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8);
            break;
        default:    /* 120 Mhz */
            b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x8889);
            b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8);
            break;
        }
    } else if (dev->phy.type == B43_PHYTYPE_LCN) {
        switch (spurmode) {
        case 1:     /* 82 Mhz */
            b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x7CE0);
            b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0xC);
            break;
        default:    /* 80 Mhz */
            b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0xCCCD);
            b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0xC);
            break;
        }
    }
}

/**************************************************
 * 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_phy_switch_macfreq(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.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,
};