/*
 * Atheros AR9170 driver
 *
 * PHY and RF code
 *
 * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
 *
 * 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, see
 * http://www.gnu.org/licenses/.
 *
 * This file incorporates work covered by the following copyright and
 * permission notice:
 *    Copyright (c) 2007-2008 Atheros Communications, Inc.
 *
 *    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.
 *
 *    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 *    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 *    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 *    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 *    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 *    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 *    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <linux/bitrev.h>
#include "ar9170.h"
#include "cmd.h"

static int ar9170_init_power_cal(struct ar9170 *ar)
{
        ar9170_regwrite_begin(ar);

        ar9170_regwrite(0x1bc000 + 0x993c, 0x7f);
        ar9170_regwrite(0x1bc000 + 0x9934, 0x3f3f3f3f);
        ar9170_regwrite(0x1bc000 + 0x9938, 0x3f3f3f3f);
        ar9170_regwrite(0x1bc000 + 0xa234, 0x3f3f3f3f);
        ar9170_regwrite(0x1bc000 + 0xa238, 0x3f3f3f3f);
        ar9170_regwrite(0x1bc000 + 0xa38c, 0x3f3f3f3f);
        ar9170_regwrite(0x1bc000 + 0xa390, 0x3f3f3f3f);
        ar9170_regwrite(0x1bc000 + 0xa3cc, 0x3f3f3f3f);
        ar9170_regwrite(0x1bc000 + 0xa3d0, 0x3f3f3f3f);
        ar9170_regwrite(0x1bc000 + 0xa3d4, 0x3f3f3f3f);

        ar9170_regwrite_finish();
        return ar9170_regwrite_result();
}

struct ar9170_phy_init {
        u32 reg, _5ghz_20, _5ghz_40, _2ghz_40, _2ghz_20;
};

static struct ar9170_phy_init ar5416_phy_init[] = {
        { 0x1c5800, 0x00000007, 0x00000007, 0x00000007, 0x00000007, },
        { 0x1c5804, 0x00000300, 0x000003c4, 0x000003c4, 0x00000300, },
        { 0x1c5808, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c580c, 0xad848e19, 0xad848e19, 0xad848e19, 0xad848e19, },
        { 0x1c5810, 0x7d14e000, 0x7d14e000, 0x7d14e000, 0x7d14e000, },
        { 0x1c5814, 0x9c0a9f6b, 0x9c0a9f6b, 0x9c0a9f6b, 0x9c0a9f6b, },
        { 0x1c5818, 0x00000090, 0x00000090, 0x00000090, 0x00000090, },
        { 0x1c581c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5820, 0x02020200, 0x02020200, 0x02020200, 0x02020200, },
        { 0x1c5824, 0x00000e0e, 0x00000e0e, 0x00000e0e, 0x00000e0e, },
        { 0x1c5828, 0x0a020001, 0x0a020001, 0x0a020001, 0x0a020001, },
        { 0x1c582c, 0x0000a000, 0x0000a000, 0x0000a000, 0x0000a000, },
        { 0x1c5830, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5834, 0x00000e0e, 0x00000e0e, 0x00000e0e, 0x00000e0e, },
        { 0x1c5838, 0x00000007, 0x00000007, 0x00000007, 0x00000007, },
        { 0x1c583c, 0x00200400, 0x00200400, 0x00200400, 0x00200400, },
        { 0x1c5840, 0x206a002e, 0x206a002e, 0x206a002e, 0x206a002e, },
        { 0x1c5844, 0x1372161e, 0x13721c1e, 0x13721c24, 0x137216a4, },
        { 0x1c5848, 0x001a6a65, 0x001a6a65, 0x00197a68, 0x00197a68, },
        { 0x1c584c, 0x1284233c, 0x1284233c, 0x1284233c, 0x1284233c, },
        { 0x1c5850, 0x6c48b4e4, 0x6c48b4e4, 0x6c48b0e4, 0x6c48b0e4, },
        { 0x1c5854, 0x00000859, 0x00000859, 0x00000859, 0x00000859, },
        { 0x1c5858, 0x7ec80d2e, 0x7ec80d2e, 0x7ec80d2e, 0x7ec80d2e, },
        { 0x1c585c, 0x31395c5e, 0x31395c5e, 0x31395c5e, 0x31395c5e, },
        { 0x1c5860, 0x0004dd10, 0x0004dd10, 0x0004dd20, 0x0004dd20, },
        { 0x1c5868, 0x409a4190, 0x409a4190, 0x409a4190, 0x409a4190, },
        { 0x1c586c, 0x050cb081, 0x050cb081, 0x050cb081, 0x050cb081, },
        { 0x1c5900, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5904, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5908, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c590c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5914, 0x000007d0, 0x000007d0, 0x00000898, 0x00000898, },
        { 0x1c5918, 0x00000118, 0x00000230, 0x00000268, 0x00000134, },
        { 0x1c591c, 0x10000fff, 0x10000fff, 0x10000fff, 0x10000fff, },
        { 0x1c5920, 0x0510081c, 0x0510081c, 0x0510001c, 0x0510001c, },
        { 0x1c5924, 0xd0058a15, 0xd0058a15, 0xd0058a15, 0xd0058a15, },
        { 0x1c5928, 0x00000001, 0x00000001, 0x00000001, 0x00000001, },
        { 0x1c592c, 0x00000004, 0x00000004, 0x00000004, 0x00000004, },
        { 0x1c5934, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
        { 0x1c5938, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
        { 0x1c593c, 0x0000007f, 0x0000007f, 0x0000007f, 0x0000007f, },
        { 0x1c5944, 0xdfb81020, 0xdfb81020, 0xdfb81020, 0xdfb81020, },
        { 0x1c5948, 0x9280b212, 0x9280b212, 0x9280b212, 0x9280b212, },
        { 0x1c594c, 0x00020028, 0x00020028, 0x00020028, 0x00020028, },
        { 0x1c5954, 0x5d50e188, 0x5d50e188, 0x5d50e188, 0x5d50e188, },
        { 0x1c5958, 0x00081fff, 0x00081fff, 0x00081fff, 0x00081fff, },
        { 0x1c5960, 0x00009b40, 0x00009b40, 0x00009b40, 0x00009b40, },
        { 0x1c5964, 0x00001120, 0x00001120, 0x00001120, 0x00001120, },
        { 0x1c5970, 0x190fb515, 0x190fb515, 0x190fb515, 0x190fb515, },
        { 0x1c5974, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5978, 0x00000001, 0x00000001, 0x00000001, 0x00000001, },
        { 0x1c597c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5980, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5984, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5988, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c598c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5990, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5994, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5998, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c599c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c59a0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c59a4, 0x00000007, 0x00000007, 0x00000007, 0x00000007, },
        { 0x1c59a8, 0x001fff00, 0x001fff00, 0x001fff00, 0x001fff00, },
        { 0x1c59ac, 0x006f00c4, 0x006f00c4, 0x006f00c4, 0x006f00c4, },
        { 0x1c59b0, 0x03051000, 0x03051000, 0x03051000, 0x03051000, },
        { 0x1c59b4, 0x00000820, 0x00000820, 0x00000820, 0x00000820, },
        { 0x1c59c0, 0x038919be, 0x038919be, 0x038919be, 0x038919be, },
        { 0x1c59c4, 0x06336f77, 0x06336f77, 0x06336f77, 0x06336f77, },
        { 0x1c59c8, 0x60f6532c, 0x60f6532c, 0x60f6532c, 0x60f6532c, },
        { 0x1c59cc, 0x08f186c8, 0x08f186c8, 0x08f186c8, 0x08f186c8, },
        { 0x1c59d0, 0x00046384, 0x00046384, 0x00046384, 0x00046384, },
        { 0x1c59d4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c59d8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c59dc, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c59e0, 0x00000200, 0x00000200, 0x00000200, 0x00000200, },
        { 0x1c59e4, 0x64646464, 0x64646464, 0x64646464, 0x64646464, },
        { 0x1c59e8, 0x3c787878, 0x3c787878, 0x3c787878, 0x3c787878, },
        { 0x1c59ec, 0x000000aa, 0x000000aa, 0x000000aa, 0x000000aa, },
        { 0x1c59f0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c59fc, 0x00001042, 0x00001042, 0x00001042, 0x00001042, },
        { 0x1c5a00, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5a04, 0x00000040, 0x00000040, 0x00000040, 0x00000040, },
        { 0x1c5a08, 0x00000080, 0x00000080, 0x00000080, 0x00000080, },
        { 0x1c5a0c, 0x000001a1, 0x000001a1, 0x00000141, 0x00000141, },
        { 0x1c5a10, 0x000001e1, 0x000001e1, 0x00000181, 0x00000181, },
        { 0x1c5a14, 0x00000021, 0x00000021, 0x000001c1, 0x000001c1, },
        { 0x1c5a18, 0x00000061, 0x00000061, 0x00000001, 0x00000001, },
        { 0x1c5a1c, 0x00000168, 0x00000168, 0x00000041, 0x00000041, },
        { 0x1c5a20, 0x000001a8, 0x000001a8, 0x000001a8, 0x000001a8, },
        { 0x1c5a24, 0x000001e8, 0x000001e8, 0x000001e8, 0x000001e8, },
        { 0x1c5a28, 0x00000028, 0x00000028, 0x00000028, 0x00000028, },
        { 0x1c5a2c, 0x00000068, 0x00000068, 0x00000068, 0x00000068, },
        { 0x1c5a30, 0x00000189, 0x00000189, 0x000000a8, 0x000000a8, },
        { 0x1c5a34, 0x000001c9, 0x000001c9, 0x00000169, 0x00000169, },
        { 0x1c5a38, 0x00000009, 0x00000009, 0x000001a9, 0x000001a9, },
        { 0x1c5a3c, 0x00000049, 0x00000049, 0x000001e9, 0x000001e9, },
        { 0x1c5a40, 0x00000089, 0x00000089, 0x00000029, 0x00000029, },
        { 0x1c5a44, 0x00000170, 0x00000170, 0x00000069, 0x00000069, },
        { 0x1c5a48, 0x000001b0, 0x000001b0, 0x00000190, 0x00000190, },
        { 0x1c5a4c, 0x000001f0, 0x000001f0, 0x000001d0, 0x000001d0, },
        { 0x1c5a50, 0x00000030, 0x00000030, 0x00000010, 0x00000010, },
        { 0x1c5a54, 0x00000070, 0x00000070, 0x00000050, 0x00000050, },
        { 0x1c5a58, 0x00000191, 0x00000191, 0x00000090, 0x00000090, },
        { 0x1c5a5c, 0x000001d1, 0x000001d1, 0x00000151, 0x00000151, },
        { 0x1c5a60, 0x00000011, 0x00000011, 0x00000191, 0x00000191, },
        { 0x1c5a64, 0x00000051, 0x00000051, 0x000001d1, 0x000001d1, },
        { 0x1c5a68, 0x00000091, 0x00000091, 0x00000011, 0x00000011, },
        { 0x1c5a6c, 0x000001b8, 0x000001b8, 0x00000051, 0x00000051, },
        { 0x1c5a70, 0x000001f8, 0x000001f8, 0x00000198, 0x00000198, },
        { 0x1c5a74, 0x00000038, 0x00000038, 0x000001d8, 0x000001d8, },
        { 0x1c5a78, 0x00000078, 0x00000078, 0x00000018, 0x00000018, },
        { 0x1c5a7c, 0x00000199, 0x00000199, 0x00000058, 0x00000058, },
        { 0x1c5a80, 0x000001d9, 0x000001d9, 0x00000098, 0x00000098, },
        { 0x1c5a84, 0x00000019, 0x00000019, 0x00000159, 0x00000159, },
        { 0x1c5a88, 0x00000059, 0x00000059, 0x00000199, 0x00000199, },
        { 0x1c5a8c, 0x00000099, 0x00000099, 0x000001d9, 0x000001d9, },
        { 0x1c5a90, 0x000000d9, 0x000000d9, 0x00000019, 0x00000019, },
        { 0x1c5a94, 0x000000f9, 0x000000f9, 0x00000059, 0x00000059, },
        { 0x1c5a98, 0x000000f9, 0x000000f9, 0x00000099, 0x00000099, },
        { 0x1c5a9c, 0x000000f9, 0x000000f9, 0x000000d9, 0x000000d9, },
        { 0x1c5aa0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5aa4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5aa8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5aac, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5ab0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5ab4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5ab8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5abc, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5ac0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5ac4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5ac8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5acc, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5ad0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5ad4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5ad8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5adc, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5ae0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5ae4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5ae8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5aec, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5af0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5af4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5af8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5afc, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
        { 0x1c5b00, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5b04, 0x00000001, 0x00000001, 0x00000001, 0x00000001, },
        { 0x1c5b08, 0x00000002, 0x00000002, 0x00000002, 0x00000002, },
        { 0x1c5b0c, 0x00000003, 0x00000003, 0x00000003, 0x00000003, },
        { 0x1c5b10, 0x00000004, 0x00000004, 0x00000004, 0x00000004, },
        { 0x1c5b14, 0x00000005, 0x00000005, 0x00000005, 0x00000005, },
        { 0x1c5b18, 0x00000008, 0x00000008, 0x00000008, 0x00000008, },
        { 0x1c5b1c, 0x00000009, 0x00000009, 0x00000009, 0x00000009, },
        { 0x1c5b20, 0x0000000a, 0x0000000a, 0x0000000a, 0x0000000a, },
        { 0x1c5b24, 0x0000000b, 0x0000000b, 0x0000000b, 0x0000000b, },
        { 0x1c5b28, 0x0000000c, 0x0000000c, 0x0000000c, 0x0000000c, },
        { 0x1c5b2c, 0x0000000d, 0x0000000d, 0x0000000d, 0x0000000d, },
        { 0x1c5b30, 0x00000010, 0x00000010, 0x00000010, 0x00000010, },
        { 0x1c5b34, 0x00000011, 0x00000011, 0x00000011, 0x00000011, },
        { 0x1c5b38, 0x00000012, 0x00000012, 0x00000012, 0x00000012, },
        { 0x1c5b3c, 0x00000013, 0x00000013, 0x00000013, 0x00000013, },
        { 0x1c5b40, 0x00000014, 0x00000014, 0x00000014, 0x00000014, },
        { 0x1c5b44, 0x00000015, 0x00000015, 0x00000015, 0x00000015, },
        { 0x1c5b48, 0x00000018, 0x00000018, 0x00000018, 0x00000018, },
        { 0x1c5b4c, 0x00000019, 0x00000019, 0x00000019, 0x00000019, },
        { 0x1c5b50, 0x0000001a, 0x0000001a, 0x0000001a, 0x0000001a, },
        { 0x1c5b54, 0x0000001b, 0x0000001b, 0x0000001b, 0x0000001b, },
        { 0x1c5b58, 0x0000001c, 0x0000001c, 0x0000001c, 0x0000001c, },
        { 0x1c5b5c, 0x0000001d, 0x0000001d, 0x0000001d, 0x0000001d, },
        { 0x1c5b60, 0x00000020, 0x00000020, 0x00000020, 0x00000020, },
        { 0x1c5b64, 0x00000021, 0x00000021, 0x00000021, 0x00000021, },
        { 0x1c5b68, 0x00000022, 0x00000022, 0x00000022, 0x00000022, },
        { 0x1c5b6c, 0x00000023, 0x00000023, 0x00000023, 0x00000023, },
        { 0x1c5b70, 0x00000024, 0x00000024, 0x00000024, 0x00000024, },
        { 0x1c5b74, 0x00000025, 0x00000025, 0x00000025, 0x00000025, },
        { 0x1c5b78, 0x00000028, 0x00000028, 0x00000028, 0x00000028, },
        { 0x1c5b7c, 0x00000029, 0x00000029, 0x00000029, 0x00000029, },
        { 0x1c5b80, 0x0000002a, 0x0000002a, 0x0000002a, 0x0000002a, },
        { 0x1c5b84, 0x0000002b, 0x0000002b, 0x0000002b, 0x0000002b, },
        { 0x1c5b88, 0x0000002c, 0x0000002c, 0x0000002c, 0x0000002c, },
        { 0x1c5b8c, 0x0000002d, 0x0000002d, 0x0000002d, 0x0000002d, },
        { 0x1c5b90, 0x00000030, 0x00000030, 0x00000030, 0x00000030, },
        { 0x1c5b94, 0x00000031, 0x00000031, 0x00000031, 0x00000031, },
        { 0x1c5b98, 0x00000032, 0x00000032, 0x00000032, 0x00000032, },
        { 0x1c5b9c, 0x00000033, 0x00000033, 0x00000033, 0x00000033, },
        { 0x1c5ba0, 0x00000034, 0x00000034, 0x00000034, 0x00000034, },
        { 0x1c5ba4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5ba8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bac, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bb0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bb4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bb8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bbc, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bc0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bc4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bc8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bcc, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bd0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bd4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bd8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bdc, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5be0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5be4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5be8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bec, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bf0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bf4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
        { 0x1c5bf8, 0x00000010, 0x00000010, 0x00000010, 0x00000010, },
        { 0x1c5bfc, 0x0000001a, 0x0000001a, 0x0000001a, 0x0000001a, },
        { 0x1c5c00, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c0c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c10, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c14, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c18, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c1c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c20, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c24, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c28, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c2c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c30, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c34, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c38, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5c3c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5cf0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5cf4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5cf8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c5cfc, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c6200, 0x00000008, 0x00000008, 0x0000000e, 0x0000000e, },
        { 0x1c6204, 0x00000440, 0x00000440, 0x00000440, 0x00000440, },
        { 0x1c6208, 0xd6be4788, 0xd6be4788, 0xd03e4788, 0xd03e4788, },
        { 0x1c620c, 0x012e8160, 0x012e8160, 0x012a8160, 0x012a8160, },
        { 0x1c6210, 0x40806333, 0x40806333, 0x40806333, 0x40806333, },
        { 0x1c6214, 0x00106c10, 0x00106c10, 0x00106c10, 0x00106c10, },
        { 0x1c6218, 0x009c4060, 0x009c4060, 0x009c4060, 0x009c4060, },
        { 0x1c621c, 0x1883800a, 0x1883800a, 0x1883800a, 0x1883800a, },
        { 0x1c6220, 0x018830c6, 0x018830c6, 0x018830c6, 0x018830c6, },
        { 0x1c6224, 0x00000400, 0x00000400, 0x00000400, 0x00000400, },
        { 0x1c6228, 0x000009b5, 0x000009b5, 0x000009b5, 0x000009b5, },
        { 0x1c622c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c6230, 0x00000108, 0x00000210, 0x00000210, 0x00000108, },
        { 0x1c6234, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
        { 0x1c6238, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
        { 0x1c623c, 0x13c889af, 0x13c889af, 0x13c889af, 0x13c889af, },
        { 0x1c6240, 0x38490a20, 0x38490a20, 0x38490a20, 0x38490a20, },
        { 0x1c6244, 0x00007bb6, 0x00007bb6, 0x00007bb6, 0x00007bb6, },
        { 0x1c6248, 0x0fff3ffc, 0x0fff3ffc, 0x0fff3ffc, 0x0fff3ffc, },
        { 0x1c624c, 0x00000001, 0x00000001, 0x00000001, 0x00000001, },
        { 0x1c6250, 0x0000a000, 0x0000a000, 0x0000a000, 0x0000a000, },
        { 0x1c6254, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c6258, 0x0cc75380, 0x0cc75380, 0x0cc75380, 0x0cc75380, },
        { 0x1c625c, 0x0f0f0f01, 0x0f0f0f01, 0x0f0f0f01, 0x0f0f0f01, },
        { 0x1c6260, 0xdfa91f01, 0xdfa91f01, 0xdfa91f01, 0xdfa91f01, },
        { 0x1c6264, 0x00418a11, 0x00418a11, 0x00418a11, 0x00418a11, },
        { 0x1c6268, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c626c, 0x09249126, 0x09249126, 0x09249126, 0x09249126, },
        { 0x1c6274, 0x0a1a9caa, 0x0a1a9caa, 0x0a1a7caa, 0x0a1a7caa, },
        { 0x1c6278, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, },
        { 0x1c627c, 0x051701ce, 0x051701ce, 0x051701ce, 0x051701ce, },
        { 0x1c6300, 0x18010000, 0x18010000, 0x18010000, 0x18010000, },
        { 0x1c6304, 0x30032602, 0x30032602, 0x2e032402, 0x2e032402, },
        { 0x1c6308, 0x48073e06, 0x48073e06, 0x4a0a3c06, 0x4a0a3c06, },
        { 0x1c630c, 0x560b4c0a, 0x560b4c0a, 0x621a540b, 0x621a540b, },
        { 0x1c6310, 0x641a600f, 0x641a600f, 0x764f6c1b, 0x764f6c1b, },
        { 0x1c6314, 0x7a4f6e1b, 0x7a4f6e1b, 0x845b7a5a, 0x845b7a5a, },
        { 0x1c6318, 0x8c5b7e5a, 0x8c5b7e5a, 0x950f8ccf, 0x950f8ccf, },
        { 0x1c631c, 0x9d0f96cf, 0x9d0f96cf, 0xa5cf9b4f, 0xa5cf9b4f, },
        { 0x1c6320, 0xb51fa69f, 0xb51fa69f, 0xbddfaf1f, 0xbddfaf1f, },
        { 0x1c6324, 0xcb3fbd07, 0xcb3fbcbf, 0xd1ffc93f, 0xd1ffc93f, },
        { 0x1c6328, 0x0000d7bf, 0x0000d7bf, 0x00000000, 0x00000000, },
        { 0x1c632c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c6330, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c6334, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c6338, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c633c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c6340, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c6344, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c6348, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x3fffffff, },
        { 0x1c634c, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x3fffffff, },
        { 0x1c6350, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x3fffffff, },
        { 0x1c6354, 0x0003ffff, 0x0003ffff, 0x0003ffff, 0x0003ffff, },
        { 0x1c6358, 0x79a8aa1f, 0x79a8aa1f, 0x79a8aa1f, 0x79a8aa1f, },
        { 0x1c6388, 0x08000000, 0x08000000, 0x08000000, 0x08000000, },
        { 0x1c638c, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
        { 0x1c6390, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
        { 0x1c6394, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, },
        { 0x1c6398, 0x000001ce, 0x000001ce, 0x000001ce, 0x000001ce, },
        { 0x1c639c, 0x00000007, 0x00000007, 0x00000007, 0x00000007, },
        { 0x1c63a0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c63a4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c63a8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c63ac, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c63b0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c63b4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c63b8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c63bc, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c63c0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c63c4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c63c8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c63cc, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
        { 0x1c63d0, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
        { 0x1c63d4, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
        { 0x1c63d8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
        { 0x1c63dc, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, },
        { 0x1c63e0, 0x000000c0, 0x000000c0, 0x000000c0, 0x000000c0, },
        { 0x1c6848, 0x00180a65, 0x00180a65, 0x00180a68, 0x00180a68, },
        { 0x1c6920, 0x0510001c, 0x0510001c, 0x0510001c, 0x0510001c, },
        { 0x1c6960, 0x00009b40, 0x00009b40, 0x00009b40, 0x00009b40, },
        { 0x1c720c, 0x012e8160, 0x012e8160, 0x012a8160, 0x012a8160, },
        { 0x1c726c, 0x09249126, 0x09249126, 0x09249126, 0x09249126, },
        { 0x1c7848, 0x00180a65, 0x00180a65, 0x00180a68, 0x00180a68, },
        { 0x1c7920, 0x0510001c, 0x0510001c, 0x0510001c, 0x0510001c, },
        { 0x1c7960, 0x00009b40, 0x00009b40, 0x00009b40, 0x00009b40, },
        { 0x1c820c, 0x012e8160, 0x012e8160, 0x012a8160, 0x012a8160, },
        { 0x1c826c, 0x09249126, 0x09249126, 0x09249126, 0x09249126, },
/*      { 0x1c8864, 0x0001ce00, 0x0001ce00, 0x0001ce00, 0x0001ce00, }, */
        { 0x1c8864, 0x0001c600, 0x0001c600, 0x0001c600, 0x0001c600, },
        { 0x1c895c, 0x004b6a8e, 0x004b6a8e, 0x004b6a8e, 0x004b6a8e, },
        { 0x1c8968, 0x000003ce, 0x000003ce, 0x000003ce, 0x000003ce, },
        { 0x1c89bc, 0x00181400, 0x00181400, 0x00181400, 0x00181400, },
        { 0x1c9270, 0x00820820, 0x00820820, 0x00820820, 0x00820820, },
        { 0x1c935c, 0x066c420f, 0x066c420f, 0x066c420f, 0x066c420f, },
        { 0x1c9360, 0x0f282207, 0x0f282207, 0x0f282207, 0x0f282207, },
        { 0x1c9364, 0x17601685, 0x17601685, 0x17601685, 0x17601685, },
        { 0x1c9368, 0x1f801104, 0x1f801104, 0x1f801104, 0x1f801104, },
        { 0x1c936c, 0x37a00c03, 0x37a00c03, 0x37a00c03, 0x37a00c03, },
        { 0x1c9370, 0x3fc40883, 0x3fc40883, 0x3fc40883, 0x3fc40883, },
        { 0x1c9374, 0x57c00803, 0x57c00803, 0x57c00803, 0x57c00803, },
        { 0x1c9378, 0x5fd80682, 0x5fd80682, 0x5fd80682, 0x5fd80682, },
        { 0x1c937c, 0x7fe00482, 0x7fe00482, 0x7fe00482, 0x7fe00482, },
        { 0x1c9380, 0x7f3c7bba, 0x7f3c7bba, 0x7f3c7bba, 0x7f3c7bba, },
        { 0x1c9384, 0xf3307ff0, 0xf3307ff0, 0xf3307ff0, 0xf3307ff0, }
};

/*
 * look up a certain register in ar5416_phy_init[] and return the init. value
 * for the band and bandwidth given. Return 0 if register address not found.
 */
static u32 ar9170_get_default_phy_reg_val(u32 reg, bool is_2ghz, bool is_40mhz)
{
        unsigned int i;
        for (i = 0; i < ARRAY_SIZE(ar5416_phy_init); i++) {
                if (ar5416_phy_init[i].reg != reg)
                        continue;

                if (is_2ghz) {
                        if (is_40mhz)
                                return ar5416_phy_init[i]._2ghz_40;
                        else
                                return ar5416_phy_init[i]._2ghz_20;
                } else {
                        if (is_40mhz)
                                return ar5416_phy_init[i]._5ghz_40;
                        else
                                return ar5416_phy_init[i]._5ghz_20;
                }
        }
        return 0;
}

/*
 * initialize some phy regs from eeprom values in modal_header[]
 * acc. to band and bandwith
 */
static int ar9170_init_phy_from_eeprom(struct ar9170 *ar,
                                bool is_2ghz, bool is_40mhz)
{
        static const u8 xpd2pd[16] = {
                0x2, 0x2, 0x2, 0x1, 0x2, 0x2, 0x6, 0x2,
                0x2, 0x3, 0x7, 0x2, 0xB, 0x2, 0x2, 0x2
        };
        u32 defval, newval;
        /* pointer to the modal_header acc. to band */
        struct ar9170_eeprom_modal *m = &ar->eeprom.modal_header[is_2ghz];

        ar9170_regwrite_begin(ar);

        /* ant common control (index 0) */
        newval = le32_to_cpu(m->antCtrlCommon);
        ar9170_regwrite(0x1c5964, newval);

        /* ant control chain 0 (index 1) */
        newval = le32_to_cpu(m->antCtrlChain[0]);
        ar9170_regwrite(0x1c5960, newval);

        /* ant control chain 2 (index 2) */
        newval = le32_to_cpu(m->antCtrlChain[1]);
        ar9170_regwrite(0x1c7960, newval);

        /* SwSettle (index 3) */
        if (!is_40mhz) {
                defval = ar9170_get_default_phy_reg_val(0x1c5844,
                                                        is_2ghz, is_40mhz);
                newval = (defval & ~0x3f80) |
                        ((m->switchSettling & 0x7f) << 7);
                ar9170_regwrite(0x1c5844, newval);
        }

        /* adcDesired, pdaDesired (index 4) */
        defval = ar9170_get_default_phy_reg_val(0x1c5850, is_2ghz, is_40mhz);
        newval = (defval & ~0xffff) | ((u8)m->pgaDesiredSize << 8) |
                ((u8)m->adcDesiredSize);
        ar9170_regwrite(0x1c5850, newval);

        /* TxEndToXpaOff, TxFrameToXpaOn (index 5) */
        defval = ar9170_get_default_phy_reg_val(0x1c5834, is_2ghz, is_40mhz);
        newval = (m->txEndToXpaOff << 24) | (m->txEndToXpaOff << 16) |
                (m->txFrameToXpaOn << 8) | m->txFrameToXpaOn;
        ar9170_regwrite(0x1c5834, newval);

        /* TxEndToRxOn (index 6) */
        defval = ar9170_get_default_phy_reg_val(0x1c5828, is_2ghz, is_40mhz);
        newval = (defval & ~0xff0000) | (m->txEndToRxOn << 16);
        ar9170_regwrite(0x1c5828, newval);

        /* thresh62 (index 7) */
        defval = ar9170_get_default_phy_reg_val(0x1c8864, is_2ghz, is_40mhz);
        newval = (defval & ~0x7f000) | (m->thresh62 << 12);
        ar9170_regwrite(0x1c8864, newval);

        /* tx/rx attenuation chain 0 (index 8) */
        defval = ar9170_get_default_phy_reg_val(0x1c5848, is_2ghz, is_40mhz);
        newval = (defval & ~0x3f000) | ((m->txRxAttenCh[0] & 0x3f) << 12);
        ar9170_regwrite(0x1c5848, newval);

        /* tx/rx attenuation chain 2 (index 9) */
        defval = ar9170_get_default_phy_reg_val(0x1c7848, is_2ghz, is_40mhz);
        newval = (defval & ~0x3f000) | ((m->txRxAttenCh[1] & 0x3f) << 12);
        ar9170_regwrite(0x1c7848, newval);

        /* tx/rx margin chain 0 (index 10) */
        defval = ar9170_get_default_phy_reg_val(0x1c620c, is_2ghz, is_40mhz);
        newval = (defval & ~0xfc0000) | ((m->rxTxMarginCh[0] & 0x3f) << 18);
        /* bsw margin chain 0 for 5GHz only */
        if (!is_2ghz)
                newval = (newval & ~0x3c00) | ((m->bswMargin[0] & 0xf) << 10);
        ar9170_regwrite(0x1c620c, newval);

        /* tx/rx margin chain 2 (index 11) */
        defval = ar9170_get_default_phy_reg_val(0x1c820c, is_2ghz, is_40mhz);
        newval = (defval & ~0xfc0000) | ((m->rxTxMarginCh[1] & 0x3f) << 18);
        ar9170_regwrite(0x1c820c, newval);

        /* iqCall, iqCallq chain 0 (index 12) */
        defval = ar9170_get_default_phy_reg_val(0x1c5920, is_2ghz, is_40mhz);
        newval = (defval & ~0x7ff) | (((u8)m->iqCalICh[0] & 0x3f) << 5) |
                ((u8)m->iqCalQCh[0] & 0x1f);
        ar9170_regwrite(0x1c5920, newval);

        /* iqCall, iqCallq chain 2 (index 13) */
        defval = ar9170_get_default_phy_reg_val(0x1c7920, is_2ghz, is_40mhz);
        newval = (defval & ~0x7ff) | (((u8)m->iqCalICh[1] & 0x3f) << 5) |
                ((u8)m->iqCalQCh[1] & 0x1f);
        ar9170_regwrite(0x1c7920, newval);

        /* xpd gain mask (index 14) */
        defval = ar9170_get_default_phy_reg_val(0x1c6258, is_2ghz, is_40mhz);
        newval = (defval & ~0xf0000) | (xpd2pd[m->xpdGain & 0xf] << 16);
        ar9170_regwrite(0x1c6258, newval);
        ar9170_regwrite_finish();

        return ar9170_regwrite_result();
}

int ar9170_init_phy(struct ar9170 *ar, enum ieee80211_band band)
{
        int i, err;
        u32 val;
        bool is_2ghz = band == IEEE80211_BAND_2GHZ;
        bool is_40mhz = conf_is_ht40(&ar->hw->conf);

        ar9170_regwrite_begin(ar);

        for (i = 0; i < ARRAY_SIZE(ar5416_phy_init); i++) {
                if (is_40mhz) {
                        if (is_2ghz)
                                val = ar5416_phy_init[i]._2ghz_40;
                        else
                                val = ar5416_phy_init[i]._5ghz_40;
                } else {
                        if (is_2ghz)
                                val = ar5416_phy_init[i]._2ghz_20;
                        else
                                val = ar5416_phy_init[i]._5ghz_20;
                }

                ar9170_regwrite(ar5416_phy_init[i].reg, val);
        }

        ar9170_regwrite_finish();
        err = ar9170_regwrite_result();
        if (err)
                return err;

        err = ar9170_init_phy_from_eeprom(ar, is_2ghz, is_40mhz);
        if (err)
                return err;

        err = ar9170_init_power_cal(ar);
        if (err)
                return err;

        /* XXX: remove magic! */
        if (is_2ghz)
                err = ar9170_write_reg(ar, 0x1d4014, 0x5163);
        else
                err = ar9170_write_reg(ar, 0x1d4014, 0x5143);

        return err;
}

struct ar9170_rf_init {
        u32 reg, _5ghz, _2ghz;
};

static struct ar9170_rf_init ar9170_rf_init[] = {
     /* bank 0 */
     { 0x1c58b0,  0x1e5795e5,  0x1e5795e5},
     { 0x1c58e0,  0x02008020,  0x02008020},
     /* bank 1 */
     { 0x1c58b0,  0x02108421,  0x02108421},
     { 0x1c58ec,  0x00000008,  0x00000008},
     /* bank 2 */
     { 0x1c58b0,  0x0e73ff17,  0x0e73ff17},
     { 0x1c58e0,  0x00000420,  0x00000420},
     /* bank 3 */
     { 0x1c58f0,  0x01400018,  0x01c00018},
     /* bank 4 */
     { 0x1c58b0,  0x000001a1,  0x000001a1},
     { 0x1c58e8,  0x00000001,  0x00000001},
     /* bank 5 */
     { 0x1c58b0,  0x00000013,  0x00000013},
     { 0x1c58e4,  0x00000002,  0x00000002},
     /* bank 6 */
     { 0x1c58b0,  0x00000000,  0x00000000},
     { 0x1c58b0,  0x00000000,  0x00000000},
     { 0x1c58b0,  0x00000000,  0x00000000},
     { 0x1c58b0,  0x00000000,  0x00000000},
     { 0x1c58b0,  0x00000000,  0x00000000},
     { 0x1c58b0,  0x00004000,  0x00004000},
     { 0x1c58b0,  0x00006c00,  0x00006c00},
     { 0x1c58b0,  0x00002c00,  0x00002c00},
     { 0x1c58b0,  0x00004800,  0x00004800},
     { 0x1c58b0,  0x00004000,  0x00004000},
     { 0x1c58b0,  0x00006000,  0x00006000},
     { 0x1c58b0,  0x00001000,  0x00001000},
     { 0x1c58b0,  0x00004000,  0x00004000},
     { 0x1c58b0,  0x00007c00,  0x00007c00},
     { 0x1c58b0,  0x00007c00,  0x00007c00},
     { 0x1c58b0,  0x00007c00,  0x00007c00},
     { 0x1c58b0,  0x00007c00,  0x00007c00},
     { 0x1c58b0,  0x00007c00,  0x00007c00},
     { 0x1c58b0,  0x00087c00,  0x00087c00},
     { 0x1c58b0,  0x00007c00,  0x00007c00},
     { 0x1c58b0,  0x00005400,  0x00005400},
     { 0x1c58b0,  0x00000c00,  0x00000c00},
     { 0x1c58b0,  0x00001800,  0x00001800},
     { 0x1c58b0,  0x00007c00,  0x00007c00},
     { 0x1c58b0,  0x00006c00,  0x00006c00},
     { 0x1c58b0,  0x00006c00,  0x00006c00},
     { 0x1c58b0,  0x00007c00,  0x00007c00},
     { 0x1c58b0,  0x00002c00,  0x00002c00},
     { 0x1c58b0,  0x00003c00,  0x00003c00},
     { 0x1c58b0,  0x00003800,  0x00003800},
     { 0x1c58b0,  0x00001c00,  0x00001c00},
     { 0x1c58b0,  0x00000800,  0x00000800},
     { 0x1c58b0,  0x00000408,  0x00000408},
     { 0x1c58b0,  0x00004c15,  0x00004c15},
     { 0x1c58b0,  0x00004188,  0x00004188},
     { 0x1c58b0,  0x0000201e,  0x0000201e},
     { 0x1c58b0,  0x00010408,  0x00010408},
     { 0x1c58b0,  0x00000801,  0x00000801},
     { 0x1c58b0,  0x00000c08,  0x00000c08},
     { 0x1c58b0,  0x0000181e,  0x0000181e},
     { 0x1c58b0,  0x00001016,  0x00001016},
     { 0x1c58b0,  0x00002800,  0x00002800},
     { 0x1c58b0,  0x00004010,  0x00004010},
     { 0x1c58b0,  0x0000081c,  0x0000081c},
     { 0x1c58b0,  0x00000115,  0x00000115},
     { 0x1c58b0,  0x00000015,  0x00000015},
     { 0x1c58b0,  0x00000066,  0x00000066},
     { 0x1c58b0,  0x0000001c,  0x0000001c},
     { 0x1c58b0,  0x00000000,  0x00000000},
     { 0x1c58b0,  0x00000004,  0x00000004},
     { 0x1c58b0,  0x00000015,  0x00000015},
     { 0x1c58b0,  0x0000001f,  0x0000001f},
     { 0x1c58e0,  0x00000000,  0x00000400},
     /* bank 7 */
     { 0x1c58b0,  0x000000a0,  0x000000a0},
     { 0x1c58b0,  0x00000000,  0x00000000},
     { 0x1c58b0,  0x00000040,  0x00000040},
     { 0x1c58f0,  0x0000001c,  0x0000001c},
};

static int ar9170_init_rf_banks_0_7(struct ar9170 *ar, bool band5ghz)
{
        int err, i;

        ar9170_regwrite_begin(ar);

        for (i = 0; i < ARRAY_SIZE(ar9170_rf_init); i++)
                ar9170_regwrite(ar9170_rf_init[i].reg,
                                band5ghz ? ar9170_rf_init[i]._5ghz
                                         : ar9170_rf_init[i]._2ghz);

        ar9170_regwrite_finish();
        err = ar9170_regwrite_result();
        if (err)
                printk(KERN_ERR "%s: rf init failed\n",
                       wiphy_name(ar->hw->wiphy));
        return err;
}

static int ar9170_init_rf_bank4_pwr(struct ar9170 *ar, bool band5ghz,
                                    u32 freq, enum ar9170_bw bw)
{
        int err;
        u32 d0, d1, td0, td1, fd0, fd1;
        u8 chansel;
        u8 refsel0 = 1, refsel1 = 0;
        u8 lf_synth = 0;

        switch (bw) {
        case AR9170_BW_40_ABOVE:
                freq += 10;
                break;
        case AR9170_BW_40_BELOW:
                freq -= 10;
                break;
        case AR9170_BW_20:
                break;
        case __AR9170_NUM_BW:
                BUG();
        }

        if (band5ghz) {
                if (freq % 10) {
                        chansel = (freq - 4800) / 5;
                } else {
                        chansel = ((freq - 4800) / 10) * 2;
                        refsel0 = 0;
                        refsel1 = 1;
                }
                chansel = byte_rev_table[chansel];
        } else {
                if (freq == 2484) {
                        chansel = 10 + (freq - 2274) / 5;
                        lf_synth = 1;
                } else
                        chansel = 16 + (freq - 2272) / 5;
                chansel *= 4;
                chansel = byte_rev_table[chansel];
        }

        d1 =    chansel;
        d0 =    0x21 |
                refsel0 << 3 |
                refsel1 << 2 |
                lf_synth << 1;
        td0 =   d0 & 0x1f;
        td1 =   d1 & 0x1f;
        fd0 =   td1 << 5 | td0;

        td0 =   (d0 >> 5) & 0x7;
        td1 =   (d1 >> 5) & 0x7;
        fd1 =   td1 << 5 | td0;

        ar9170_regwrite_begin(ar);

        ar9170_regwrite(0x1c58b0, fd0);
        ar9170_regwrite(0x1c58e8, fd1);

        ar9170_regwrite_finish();
        err = ar9170_regwrite_result();
        if (err)
                return err;

        msleep(10);

        return 0;
}

struct ar9170_phy_freq_params {
        u8 coeff_exp;
        u16 coeff_man;
        u8 coeff_exp_shgi;
        u16 coeff_man_shgi;
};

struct ar9170_phy_freq_entry {
        u16 freq;
        struct ar9170_phy_freq_params params[__AR9170_NUM_BW];
};

/* NB: must be in sync with channel tables in main! */
static const struct ar9170_phy_freq_entry ar9170_phy_freq_params[] = {
/*
 *      freq,
 *              20MHz,
 *              40MHz (below),
 *              40Mhz (above),
 */
        { 2412, {
                { 3, 21737, 3, 19563, },
                { 3, 21827, 3, 19644, },
                { 3, 21647, 3, 19482, },
        } },
        { 2417, {
                { 3, 21692, 3, 19523, },
                { 3, 21782, 3, 19604, },
                { 3, 21602, 3, 19442, },
        } },
        { 2422, {
                { 3, 21647, 3, 19482, },
                { 3, 21737, 3, 19563, },
                { 3, 21558, 3, 19402, },
        } },
        { 2427, {
                { 3, 21602, 3, 19442, },
                { 3, 21692, 3, 19523, },
                { 3, 21514, 3, 19362, },
        } },
        { 2432, {
                { 3, 21558, 3, 19402, },
                { 3, 21647, 3, 19482, },
                { 3, 21470, 3, 19323, },
        } },
        { 2437, {
                { 3, 21514, 3, 19362, },
                { 3, 21602, 3, 19442, },
                { 3, 21426, 3, 19283, },
        } },
        { 2442, {
                { 3, 21470, 3, 19323, },
                { 3, 21558, 3, 19402, },
                { 3, 21382, 3, 19244, },
        } },
        { 2447, {
                { 3, 21426, 3, 19283, },
                { 3, 21514, 3, 19362, },
                { 3, 21339, 3, 19205, },
        } },
        { 2452, {
                { 3, 21382, 3, 19244, },
                { 3, 21470, 3, 19323, },
                { 3, 21295, 3, 19166, },
        } },
        { 2457, {
                { 3, 21339, 3, 19205, },
                { 3, 21426, 3, 19283, },
                { 3, 21252, 3, 19127, },
        } },
        { 2462, {
                { 3, 21295, 3, 19166, },
                { 3, 21382, 3, 19244, },
                { 3, 21209, 3, 19088, },
        } },
        { 2467, {
                { 3, 21252, 3, 19127, },
                { 3, 21339, 3, 19205, },
                { 3, 21166, 3, 19050, },
        } },
        { 2472, {
                { 3, 21209, 3, 19088, },
                { 3, 21295, 3, 19166, },
                { 3, 21124, 3, 19011, },
        } },
        { 2484, {
                { 3, 21107, 3, 18996, },
                { 3, 21192, 3, 19073, },
                { 3, 21022, 3, 18920, },
        } },
        { 4920, {
                { 4, 21313, 4, 19181, },
                { 4, 21356, 4, 19220, },
                { 4, 21269, 4, 19142, },
        } },
        { 4940, {
                { 4, 21226, 4, 19104, },
                { 4, 21269, 4, 19142, },
                { 4, 21183, 4, 19065, },
        } },
        { 4960, {
                { 4, 21141, 4, 19027, },
                { 4, 21183, 4, 19065, },
                { 4, 21098, 4, 18988, },
        } },
        { 4980, {
                { 4, 21056, 4, 18950, },
                { 4, 21098, 4, 18988, },
                { 4, 21014, 4, 18912, },
        } },
        { 5040, {
                { 4, 20805, 4, 18725, },
                { 4, 20846, 4, 18762, },
                { 4, 20764, 4, 18687, },
        } },
        { 5060, {
                { 4, 20723, 4, 18651, },
                { 4, 20764, 4, 18687, },
                { 4, 20682, 4, 18614, },
        } },
        { 5080, {
                { 4, 20641, 4, 18577, },
                { 4, 20682, 4, 18614, },
                { 4, 20601, 4, 18541, },
        } },
        { 5180, {
                { 4, 20243, 4, 18219, },
                { 4, 20282, 4, 18254, },
                { 4, 20204, 4, 18183, },
        } },
        { 5200, {
                { 4, 20165, 4, 18148, },
                { 4, 20204, 4, 18183, },
                { 4, 20126, 4, 18114, },
        } },
        { 5220, {
                { 4, 20088, 4, 18079, },
                { 4, 20126, 4, 18114, },
                { 4, 20049, 4, 18044, },
        } },
        { 5240, {
                { 4, 20011, 4, 18010, },
                { 4, 20049, 4, 18044, },
                { 4, 19973, 4, 17976, },
        } },
        { 5260, {
                { 4, 19935, 4, 17941, },
                { 4, 19973, 4, 17976, },
                { 4, 19897, 4, 17907, },
        } },
        { 5280, {
                { 4, 19859, 4, 17873, },
                { 4, 19897, 4, 17907, },
                { 4, 19822, 4, 17840, },
        } },
        { 5300, {
                { 4, 19784, 4, 17806, },
                { 4, 19822, 4, 17840, },
                { 4, 19747, 4, 17772, },
        } },
        { 5320, {
                { 4, 19710, 4, 17739, },
                { 4, 19747, 4, 17772, },
                { 4, 19673, 4, 17706, },
        } },
        { 5500, {
                { 4, 19065, 4, 17159, },
                { 4, 19100, 4, 17190, },
                { 4, 19030, 4, 17127, },
        } },
        { 5520, {
                { 4, 18996, 4, 17096, },
                { 4, 19030, 4, 17127, },
                { 4, 18962, 4, 17065, },
        } },
        { 5540, {
                { 4, 18927, 4, 17035, },
                { 4, 18962, 4, 17065, },
                { 4, 18893, 4, 17004, },
        } },
        { 5560, {
                { 4, 18859, 4, 16973, },
                { 4, 18893, 4, 17004, },
                { 4, 18825, 4, 16943, },
        } },
        { 5580, {
                { 4, 18792, 4, 16913, },
                { 4, 18825, 4, 16943, },
                { 4, 18758, 4, 16882, },
        } },
        { 5600, {
                { 4, 18725, 4, 16852, },
                { 4, 18758, 4, 16882, },
                { 4, 18691, 4, 16822, },
        } },
        { 5620, {
                { 4, 18658, 4, 16792, },
                { 4, 18691, 4, 16822, },
                { 4, 18625, 4, 16762, },
        } },
        { 5640, {
                { 4, 18592, 4, 16733, },
                { 4, 18625, 4, 16762, },
                { 4, 18559, 4, 16703, },
        } },
        { 5660, {
                { 4, 18526, 4, 16673, },
                { 4, 18559, 4, 16703, },
                { 4, 18493, 4, 16644, },
        } },
        { 5680, {
                { 4, 18461, 4, 16615, },
                { 4, 18493, 4, 16644, },
                { 4, 18428, 4, 16586, },
        } },
        { 5700, {
                { 4, 18396, 4, 16556, },
                { 4, 18428, 4, 16586, },
                { 4, 18364, 4, 16527, },
        } },
        { 5745, {
                { 4, 18252, 4, 16427, },
                { 4, 18284, 4, 16455, },
                { 4, 18220, 4, 16398, },
        } },
        { 5765, {
                { 4, 18189, 5, 32740, },
                { 4, 18220, 4, 16398, },
                { 4, 18157, 5, 32683, },
        } },
        { 5785, {
                { 4, 18126, 5, 32626, },
                { 4, 18157, 5, 32683, },
                { 4, 18094, 5, 32570, },
        } },
        { 5805, {
                { 4, 18063, 5, 32514, },
                { 4, 18094, 5, 32570, },
                { 4, 18032, 5, 32458, },
        } },
        { 5825, {
                { 4, 18001, 5, 32402, },
                { 4, 18032, 5, 32458, },
                { 4, 17970, 5, 32347, },
        } },
        { 5170, {
                { 4, 20282, 4, 18254, },
                { 4, 20321, 4, 18289, },
                { 4, 20243, 4, 18219, },
        } },
        { 5190, {
                { 4, 20204, 4, 18183, },
                { 4, 20243, 4, 18219, },
                { 4, 20165, 4, 18148, },

        } },
        { 5210, {
                { 4, 20126, 4, 18114, },
                { 4, 20165, 4, 18148, },
                { 4, 20088, 4, 18079, },
        } },
        { 5230, {
                { 4, 20049, 4, 18044, },
                { 4, 20088, 4, 18079, },
                { 4, 20011, 4, 18010, },
        } },
};

static const struct ar9170_phy_freq_params *
ar9170_get_hw_dyn_params(struct ieee80211_channel *channel,
                         enum ar9170_bw bw)
{
        unsigned int chanidx = 0;
        u16 freq = 2412;

        if (channel) {
                chanidx = channel->hw_value;
                freq = channel->center_freq;
        }

        BUG_ON(chanidx >= ARRAY_SIZE(ar9170_phy_freq_params));

        BUILD_BUG_ON(__AR9170_NUM_BW != 3);

        WARN_ON(ar9170_phy_freq_params[chanidx].freq != freq);

        return &ar9170_phy_freq_params[chanidx].params[bw];
}


int ar9170_init_rf(struct ar9170 *ar)
{
        const struct ar9170_phy_freq_params *freqpar;
        __le32 cmd[7];
        int err;

        err = ar9170_init_rf_banks_0_7(ar, false);
        if (err)
                return err;

        err = ar9170_init_rf_bank4_pwr(ar, false, 2412, AR9170_BW_20);
        if (err)
                return err;

        freqpar = ar9170_get_hw_dyn_params(NULL, AR9170_BW_20);

        cmd[0] = cpu_to_le32(2412 * 1000);
        cmd[1] = cpu_to_le32(0);
        cmd[2] = cpu_to_le32(1);
        cmd[3] = cpu_to_le32(freqpar->coeff_exp);
        cmd[4] = cpu_to_le32(freqpar->coeff_man);
        cmd[5] = cpu_to_le32(freqpar->coeff_exp_shgi);
        cmd[6] = cpu_to_le32(freqpar->coeff_man_shgi);

        /* RF_INIT echoes the command back to us */
        err = ar->exec_cmd(ar, AR9170_CMD_RF_INIT,
                           sizeof(cmd), (u8 *)cmd,
                           sizeof(cmd), (u8 *)cmd);
        if (err)
                return err;

        msleep(1000);

        return ar9170_echo_test(ar, 0xaabbccdd);
}

static int ar9170_find_freq_idx(int nfreqs, u8 *freqs, u8 f)
{
        int idx = nfreqs - 2;

        while (idx >= 0) {
                if (f >= freqs[idx])
                        return idx;
                idx--;
        }

        return 0;
}

static s32 ar9170_interpolate_s32(s32 x, s32 x1, s32 y1, s32 x2, s32 y2)
{
        /* nothing to interpolate, it's horizontal */
        if (y2 == y1)
                return y1;

        /* check if we hit one of the edges */
        if (x == x1)
                return y1;
        if (x == x2)
                return y2;

        /* x1 == x2 is bad, hopefully == x */
        if (x2 == x1)
                return y1;

        return y1 + (((y2 - y1) * (x - x1)) / (x2 - x1));
}

static u8 ar9170_interpolate_u8(u8 x, u8 x1, u8 y1, u8 x2, u8 y2)
{
#define SHIFT           8
        s32 y;

        y = ar9170_interpolate_s32(x << SHIFT,
                                   x1 << SHIFT, y1 << SHIFT,
                                   x2 << SHIFT, y2 << SHIFT);

        /*
         * XXX: unwrap this expression
         *      Isn't it just DIV_ROUND_UP(y, 1<<SHIFT)?
         *      Can we rely on the compiler to optimise away the div?
         */
        return (y >> SHIFT) + ((y & (1<<(SHIFT-1))) >> (SHIFT - 1));
#undef SHIFT
}

static u8 ar9170_interpolate_val(u8 x, u8 *x_array, u8 *y_array)
{
        int i;

        for (i = 0; i < 3; i++)
                if (x <= x_array[i + 1])
                        break;

        return ar9170_interpolate_u8(x,
                                     x_array[i],
                                     y_array[i],
                                     x_array[i + 1],
                                     y_array[i + 1]);
}

static int ar9170_set_freq_cal_data(struct ar9170 *ar,
                                    struct ieee80211_channel *channel)
{
        u8 *cal_freq_pier;
        u8 vpds[2][AR5416_PD_GAIN_ICEPTS];
        u8 pwrs[2][AR5416_PD_GAIN_ICEPTS];
        int chain, idx, i;
        u32 phy_data = 0;
        u8 f, tmp;

        switch (channel->band) {
        case IEEE80211_BAND_2GHZ:
                f = channel->center_freq - 2300;
                cal_freq_pier = ar->eeprom.cal_freq_pier_2G;
                i = AR5416_NUM_2G_CAL_PIERS - 1;
                break;

        case IEEE80211_BAND_5GHZ:
                f = (channel->center_freq - 4800) / 5;
                cal_freq_pier = ar->eeprom.cal_freq_pier_5G;
                i = AR5416_NUM_5G_CAL_PIERS - 1;
                break;

        default:
                return -EINVAL;
                break;
        }

        for (; i >= 0; i--) {
                if (cal_freq_pier[i] != 0xff)
                        break;
        }
        if (i < 0)
                return -EINVAL;

        idx = ar9170_find_freq_idx(i, cal_freq_pier, f);

        ar9170_regwrite_begin(ar);

        for (chain = 0; chain < AR5416_MAX_CHAINS; chain++) {
                for (i = 0; i < AR5416_PD_GAIN_ICEPTS; i++) {
                        struct ar9170_calibration_data_per_freq *cal_pier_data;
                        int j;

                        switch (channel->band) {
                        case IEEE80211_BAND_2GHZ:
                                cal_pier_data = &ar->eeprom.
                                        cal_pier_data_2G[chain][idx];
                                break;

                        case IEEE80211_BAND_5GHZ:
                                cal_pier_data = &ar->eeprom.
                                        cal_pier_data_5G[chain][idx];
                                break;

                        default:
                                return -EINVAL;
                        }

                        for (j = 0; j < 2; j++) {
                                vpds[j][i] = ar9170_interpolate_u8(f,
                                        cal_freq_pier[idx],
                                        cal_pier_data->vpd_pdg[j][i],
                                        cal_freq_pier[idx + 1],
                                        cal_pier_data[1].vpd_pdg[j][i]);

                                pwrs[j][i] = ar9170_interpolate_u8(f,
                                        cal_freq_pier[idx],
                                        cal_pier_data->pwr_pdg[j][i],
                                        cal_freq_pier[idx + 1],
                                        cal_pier_data[1].pwr_pdg[j][i]) / 2;
                        }
                }

                for (i = 0; i < 76; i++) {
                        if (i < 25) {
                                tmp = ar9170_interpolate_val(i, &pwrs[0][0],
                                                             &vpds[0][0]);
                        } else {
                                tmp = ar9170_interpolate_val(i - 12,
                                                             &pwrs[1][0],
                                                             &vpds[1][0]);
                        }

                        phy_data |= tmp << ((i & 3) << 3);
                        if ((i & 3) == 3) {
                                ar9170_regwrite(0x1c6280 + chain * 0x1000 +
                                                (i & ~3), phy_data);
                                phy_data = 0;
                        }
                }

                for (i = 19; i < 32; i++)
                        ar9170_regwrite(0x1c6280 + chain * 0x1000 + (i << 2),
                                        0x0);
        }

        ar9170_regwrite_finish();
        return ar9170_regwrite_result();
}

static u8 ar9170_get_max_edge_power(struct ar9170 *ar,
                                    struct ar9170_calctl_edges edges[],
                                    u32 freq)
{
/* TODO: move somewhere else */
#define AR5416_MAX_RATE_POWER        63

        int i;
        u8 rc = AR5416_MAX_RATE_POWER;
        u8 f;
        if (freq < 3000)
                f = freq - 2300;
        else
                f = (freq - 4800) / 5;

        for (i = 0; i < AR5416_NUM_BAND_EDGES; i++) {
                if (edges[i].channel == 0xff)
                        break;
                if (f == edges[i].channel) {
                        /* exact freq match */
                        rc = edges[i].power_flags & ~AR9170_CALCTL_EDGE_FLAGS;
                        break;
                }
                if (i > 0 && f < edges[i].channel) {
                        if (f > edges[i-1].channel &&
                            edges[i-1].power_flags & AR9170_CALCTL_EDGE_FLAGS) {
                                /* lower channel has the inband flag set */
                                rc = edges[i-1].power_flags &
                                        ~AR9170_CALCTL_EDGE_FLAGS;
                        }
                        break;
                }
        }

        if (i == AR5416_NUM_BAND_EDGES) {
                if (f > edges[i-1].channel &&
                    edges[i-1].power_flags & AR9170_CALCTL_EDGE_FLAGS) {
                        /* lower channel has the inband flag set */
                        rc = edges[i-1].power_flags &
                                ~AR9170_CALCTL_EDGE_FLAGS;
                }
        }
        return rc;
}

/* calculate the conformance test limits and apply them to ar->power*
 * (derived from otus hal/hpmain.c, line 3706 ff.)
 */
static void ar9170_calc_ctl(struct ar9170 *ar, u32 freq, enum ar9170_bw bw)
{
        u8 ctl_grp; /* CTL group */
        u8 ctl_idx; /* CTL index */
        int i, j;
        struct ctl_modes {
                u8 ctl_mode;
                u8 max_power;
                u8 *pwr_cal_data;
                int pwr_cal_len;
        } *modes;

        /* order is relevant in the mode_list_*: we fall back to the
         * lower indices if any mode is missed in the EEPROM.
         */
        struct ctl_modes mode_list_2ghz[] = {
                { CTL_11B, 0, ar->power_2G_cck, 4 },
                { CTL_11G, 0, ar->power_2G_ofdm, 4 },
                { CTL_2GHT20, 0, ar->power_2G_ht20, 8 },
                { CTL_2GHT40, 0, ar->power_2G_ht40, 8 },
        };
        struct ctl_modes mode_list_5ghz[] = {
                { CTL_11A, 0, ar->power_5G_leg, 4 },
                { CTL_5GHT20, 0, ar->power_5G_ht20, 8 },
                { CTL_5GHT40, 0, ar->power_5G_ht40, 8 },
        };
        int nr_modes;

#define EDGES(c, n) (ar->eeprom.ctl_data[c].control_edges[n])

        /* TODO: investigate the differences between OTUS'
         * hpreg.c::zfHpGetRegulatoryDomain() and
         * ath/regd.c::ath_regd_get_band_ctl() -
         * e.g. for FCC3_WORLD the OTUS procedure
         * always returns CTL_FCC, while the one in ath/ delivers
         * CTL_ETSI for 2GHz and CTL_FCC for 5GHz.
         */
        ctl_grp = ath_regd_get_band_ctl(&ar->common.regulatory,
                                        ar->hw->conf.channel->band);

        /* ctl group not found - either invalid band (NO_CTL) or ww roaming */
        if (ctl_grp == NO_CTL || ctl_grp == SD_NO_CTL)
                ctl_grp = CTL_FCC;

        if (ctl_grp != CTL_FCC)
                /* skip CTL and heavy clip for CTL_MKK and CTL_ETSI */
                return;

        if (ar->hw->conf.channel->band == IEEE80211_BAND_2GHZ) {
                modes = mode_list_2ghz;
                nr_modes = ARRAY_SIZE(mode_list_2ghz);
        } else {
                modes = mode_list_5ghz;
                nr_modes = ARRAY_SIZE(mode_list_5ghz);
        }

        for (i = 0; i < nr_modes; i++) {
                u8 c = ctl_grp | modes[i].ctl_mode;
                for (ctl_idx = 0; ctl_idx < AR5416_NUM_CTLS; ctl_idx++)
                        if (c == ar->eeprom.ctl_index[ctl_idx])
                                break;
                if (ctl_idx < AR5416_NUM_CTLS) {
                        int f_off = 0;

                        /* adjust freq for 40MHz */
                        if (modes[i].ctl_mode == CTL_2GHT40 ||
                            modes[i].ctl_mode == CTL_5GHT40) {
                                if (bw == AR9170_BW_40_BELOW)
                                        f_off = -10;
                                else
                                        f_off = 10;
                        }

                        modes[i].max_power =
                                ar9170_get_max_edge_power(ar, EDGES(ctl_idx, 1),
                                                          freq+f_off);

                        /* TODO: check if the regulatory max. power is
                         *  controlled by cfg80211 for DFS
                         * (hpmain applies it to max_power itself for DFS freq)
                         */

                } else {
                        /* Workaround in otus driver, hpmain.c, line 3906:
                         * if no data for 5GHT20 are found, take the
                         * legacy 5G value.
                         * We extend this here to fallback from any other *HT or
                         * 11G, too.
                         */
                        int k = i;

                        modes[i].max_power = AR5416_MAX_RATE_POWER;
                        while (k-- > 0) {
                                if (modes[k].max_power !=
                                    AR5416_MAX_RATE_POWER) {
                                        modes[i].max_power = modes[k].max_power;
                                        break;
                                }
                        }
                }

                /* apply max power to pwr_cal_data (ar->power_*) */
                for (j = 0; j < modes[i].pwr_cal_len; j++) {
                        modes[i].pwr_cal_data[j] = min(modes[i].pwr_cal_data[j],
                                                       modes[i].max_power);
                }
        }
#undef EDGES
}

static int ar9170_set_power_cal(struct ar9170 *ar, u32 freq, enum ar9170_bw bw)
{
        struct ar9170_calibration_target_power_legacy *ctpl;
        struct ar9170_calibration_target_power_ht *ctph;
        u8 *ctpres;
        int ntargets;
        int idx, i, n;
        u8 ackpower, ackchains, f;
        u8 pwr_freqs[AR5416_MAX_NUM_TGT_PWRS];

        if (freq < 3000)
                f = freq - 2300;
        else
                f = (freq - 4800)/5;

        /*
         * cycle through the various modes
         *
         * legacy modes first: 5G, 2G CCK, 2G OFDM
         */
        for (i = 0; i < 3; i++) {
                switch (i) {
                case 0: /* 5 GHz legacy */
                        ctpl = &ar->eeprom.cal_tgt_pwr_5G[0];
                        ntargets = AR5416_NUM_5G_TARGET_PWRS;
                        ctpres = ar->power_5G_leg;
                        break;
                case 1: /* 2.4 GHz CCK */
                        ctpl = &ar->eeprom.cal_tgt_pwr_2G_cck[0];
                        ntargets = AR5416_NUM_2G_CCK_TARGET_PWRS;
                        ctpres = ar->power_2G_cck;
                        break;
                case 2: /* 2.4 GHz OFDM */
                        ctpl = &ar->eeprom.cal_tgt_pwr_2G_ofdm[0];
                        ntargets = AR5416_NUM_2G_OFDM_TARGET_PWRS;
                        ctpres = ar->power_2G_ofdm;
                        break;
                default:
                        BUG();
                }

                for (n = 0; n < ntargets; n++) {
                        if (ctpl[n].freq == 0xff)
                                break;
                        pwr_freqs[n] = ctpl[n].freq;
                }
                ntargets = n;
                idx = ar9170_find_freq_idx(ntargets, pwr_freqs, f);
                for (n = 0; n < 4; n++)
                        ctpres[n] = ar9170_interpolate_u8(
                                        f,
                                        ctpl[idx + 0].freq,
                                        ctpl[idx + 0].power[n],
                                        ctpl[idx + 1].freq,
                                        ctpl[idx + 1].power[n]);
        }

        /*
         * HT modes now: 5G HT20, 5G HT40, 2G CCK, 2G OFDM, 2G HT20, 2G HT40
         */
        for (i = 0; i < 4; i++) {
                switch (i) {
                case 0: /* 5 GHz HT 20 */
                        ctph = &ar->eeprom.cal_tgt_pwr_5G_ht20[0];
                        ntargets = AR5416_NUM_5G_TARGET_PWRS;
                        ctpres = ar->power_5G_ht20;
                        break;
                case 1: /* 5 GHz HT 40 */
                        ctph = &ar->eeprom.cal_tgt_pwr_5G_ht40[0];
                        ntargets = AR5416_NUM_5G_TARGET_PWRS;
                        ctpres = ar->power_5G_ht40;
                        break;
                case 2: /* 2.4 GHz HT 20 */
                        ctph = &ar->eeprom.cal_tgt_pwr_2G_ht20[0];
                        ntargets = AR5416_NUM_2G_OFDM_TARGET_PWRS;
                        ctpres = ar->power_2G_ht20;
                        break;
                case 3: /* 2.4 GHz HT 40 */
                        ctph = &ar->eeprom.cal_tgt_pwr_2G_ht40[0];
                        ntargets = AR5416_NUM_2G_OFDM_TARGET_PWRS;
                        ctpres = ar->power_2G_ht40;
                        break;
                default:
                        BUG();
                }

                for (n = 0; n < ntargets; n++) {
                        if (ctph[n].freq == 0xff)
                                break;
                        pwr_freqs[n] = ctph[n].freq;
                }
                ntargets = n;
                idx = ar9170_find_freq_idx(ntargets, pwr_freqs, f);
                for (n = 0; n < 8; n++)
                        ctpres[n] = ar9170_interpolate_u8(
                                        f,
                                        ctph[idx + 0].freq,
                                        ctph[idx + 0].power[n],
                                        ctph[idx + 1].freq,
                                        ctph[idx + 1].power[n]);
        }


        /* calc. conformance test limits and apply to ar->power*[] */
        ar9170_calc_ctl(ar, freq, bw);

        /* TODO: (heavy clip) regulatory domain power level fine-tuning. */

        /* set ACK/CTS TX power */
        ar9170_regwrite_begin(ar);

        if (ar->eeprom.tx_mask != 1)
                ackchains = AR9170_TX_PHY_TXCHAIN_2;
        else
                ackchains = AR9170_TX_PHY_TXCHAIN_1;

        if (freq < 3000)
                ackpower = ar->power_2G_ofdm[0] & 0x3f;
        else
                ackpower = ar->power_5G_leg[0] & 0x3f;

        ar9170_regwrite(0x1c3694, ackpower << 20 | ackchains << 26);
        ar9170_regwrite(0x1c3bb4, ackpower << 5 | ackchains << 11 |
                                  ackpower << 21 | ackchains << 27);

        ar9170_regwrite_finish();
        return ar9170_regwrite_result();
}

static int ar9170_calc_noise_dbm(u32 raw_noise)
{
        if (raw_noise & 0x100)
                return ~((raw_noise & 0x0ff) >> 1);
        else
                return (raw_noise & 0xff) >> 1;
}

int ar9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel,
                       enum ar9170_rf_init_mode rfi, enum ar9170_bw bw)
{
        const struct ar9170_phy_freq_params *freqpar;
        u32 cmd, tmp, offs;
        __le32 vals[8];
        int i, err;
        bool bandswitch;

        /* clear BB heavy clip enable */
        err = ar9170_write_reg(ar, 0x1c59e0, 0x200);
        if (err)
                return err;

        /* may be NULL at first setup */
        if (ar->channel)
                bandswitch = ar->channel->band != channel->band;
        else
                bandswitch = true;

        /* HW workaround */
        if (!ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] &&
            channel->center_freq <= 2417)
                bandswitch = true;

        err = ar->exec_cmd(ar, AR9170_CMD_FREQ_START, 0, NULL, 0, NULL);
        if (err)
                return err;

        if (rfi != AR9170_RFI_NONE || bandswitch) {
                u32 val = 0x400;

                if (rfi == AR9170_RFI_COLD)
                        val = 0x800;

                /* warm/cold reset BB/ADDA */
                err = ar9170_write_reg(ar, 0x1d4004, val);
                if (err)
                        return err;

                err = ar9170_write_reg(ar, 0x1d4004, 0x0);
                if (err)
                        return err;

                err = ar9170_init_phy(ar, channel->band);
                if (err)
                        return err;

                err = ar9170_init_rf_banks_0_7(ar,
                        channel->band == IEEE80211_BAND_5GHZ);
                if (err)
                        return err;

                cmd = AR9170_CMD_RF_INIT;
        } else {
                cmd = AR9170_CMD_FREQUENCY;
        }

        err = ar9170_init_rf_bank4_pwr(ar,
                channel->band == IEEE80211_BAND_5GHZ,
                channel->center_freq, bw);
        if (err)
                return err;

        switch (bw) {
        case AR9170_BW_20:
                tmp = 0x240;
                offs = 0;
                break;
        case AR9170_BW_40_BELOW:
                tmp = 0x2c4;
                offs = 3;
                break;
        case AR9170_BW_40_ABOVE:
                tmp = 0x2d4;
                offs = 1;
                break;
        default:
                BUG();
                return -ENOSYS;
        }

        if (ar->eeprom.tx_mask != 1)
                tmp |= 0x100;

        err = ar9170_write_reg(ar, 0x1c5804, tmp);
        if (err)
                return err;

        err = ar9170_set_freq_cal_data(ar, channel);
        if (err)
                return err;

        err = ar9170_set_power_cal(ar, channel->center_freq, bw);
        if (err)
                return err;

        freqpar = ar9170_get_hw_dyn_params(channel, bw);

        vals[0] = cpu_to_le32(channel->center_freq * 1000);
        vals[1] = cpu_to_le32(conf_is_ht40(&ar->hw->conf));
        vals[2] = cpu_to_le32(offs << 2 | 1);
        vals[3] = cpu_to_le32(freqpar->coeff_exp);
        vals[4] = cpu_to_le32(freqpar->coeff_man);
        vals[5] = cpu_to_le32(freqpar->coeff_exp_shgi);
        vals[6] = cpu_to_le32(freqpar->coeff_man_shgi);
        vals[7] = cpu_to_le32(1000);

        err = ar->exec_cmd(ar, cmd, sizeof(vals), (u8 *)vals,
                           sizeof(vals), (u8 *)vals);
        if (err)
                return err;

        for (i = 0; i < 2; i++) {
                ar->noise[i] = ar9170_calc_noise_dbm(
                                (le32_to_cpu(vals[2 + i]) >> 19) & 0x1ff);

                ar->noise[i + 2] = ar9170_calc_noise_dbm(
                                    (le32_to_cpu(vals[5 + i]) >> 23) & 0x1ff);
        }

        ar->channel = channel;
        return 0;
}