drivers/net/wireless/ath/carl9170/phy.c

   1 /*
   2  * Atheros CARL9170 driver
   3  *
   4  * PHY and RF code
   5  *
   6  * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; see the file COPYING.  If not, see
  20  * http://www.gnu.org/licenses/.
  21  *
  22  * This file incorporates work covered by the following copyright and
  23  * permission notice:
  24  *    Copyright (c) 2007-2008 Atheros Communications, Inc.
  25  *
  26  *    Permission to use, copy, modify, and/or distribute this software for any
  27  *    purpose with or without fee is hereby granted, provided that the above
  28  *    copyright notice and this permission notice appear in all copies.
  29  *
  30  *    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  31  *    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  32  *    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  33  *    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  34  *    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  35  *    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  36  *    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  37  */
  38
  39 #include <linux/bitrev.h>
  40 #include "carl9170.h"
  41 #include "cmd.h"
  42 #include "phy.h"
  43
  44 static int carl9170_init_power_cal(struct ar9170 *ar)
  45 {
  46         carl9170_regwrite_begin(ar);
  47
  48         carl9170_regwrite(AR9170_PHY_REG_POWER_TX_RATE_MAX, 0x7f);
  49         carl9170_regwrite(AR9170_PHY_REG_POWER_TX_RATE1, 0x3f3f3f3f);
  50         carl9170_regwrite(AR9170_PHY_REG_POWER_TX_RATE2, 0x3f3f3f3f);
  51         carl9170_regwrite(AR9170_PHY_REG_POWER_TX_RATE3, 0x3f3f3f3f);
  52         carl9170_regwrite(AR9170_PHY_REG_POWER_TX_RATE4, 0x3f3f3f3f);
  53         carl9170_regwrite(AR9170_PHY_REG_POWER_TX_RATE5, 0x3f3f3f3f);
  54         carl9170_regwrite(AR9170_PHY_REG_POWER_TX_RATE6, 0x3f3f3f3f);
  55         carl9170_regwrite(AR9170_PHY_REG_POWER_TX_RATE7, 0x3f3f3f3f);
  56         carl9170_regwrite(AR9170_PHY_REG_POWER_TX_RATE8, 0x3f3f3f3f);
  57         carl9170_regwrite(AR9170_PHY_REG_POWER_TX_RATE9, 0x3f3f3f3f);
  58
  59         carl9170_regwrite_finish();
  60         return carl9170_regwrite_result();
  61 }
  62
  63 struct carl9170_phy_init {
  64         u32 reg, _5ghz_20, _5ghz_40, _2ghz_40, _2ghz_20;
  65 };
  66
  67 static struct carl9170_phy_init ar5416_phy_init[] = {
  68         { 0x1c5800, 0x00000007, 0x00000007, 0x00000007, 0x00000007, },
  69         { 0x1c5804, 0x00000300, 0x000003c4, 0x000003c4, 0x00000300, },
  70         { 0x1c5808, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
  71         { 0x1c580c, 0xad848e19, 0xad848e19, 0xad848e19, 0xad848e19, },
  72         { 0x1c5810, 0x7d14e000, 0x7d14e000, 0x7d14e000, 0x7d14e000, },
  73         { 0x1c5814, 0x9c0a9f6b, 0x9c0a9f6b, 0x9c0a9f6b, 0x9c0a9f6b, },
  74         { 0x1c5818, 0x00000090, 0x00000090, 0x00000090, 0x00000090, },
  75         { 0x1c581c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
  76         { 0x1c5820, 0x02020200, 0x02020200, 0x02020200, 0x02020200, },
  77         { 0x1c5824, 0x00000e0e, 0x00000e0e, 0x00000e0e, 0x00000e0e, },
  78         { 0x1c5828, 0x0a020001, 0x0a020001, 0x0a020001, 0x0a020001, },
  79         { 0x1c582c, 0x0000a000, 0x0000a000, 0x0000a000, 0x0000a000, },
  80         { 0x1c5830, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
  81         { 0x1c5834, 0x00000e0e, 0x00000e0e, 0x00000e0e, 0x00000e0e, },
  82         { 0x1c5838, 0x00000007, 0x00000007, 0x00000007, 0x00000007, },
  83         { 0x1c583c, 0x00200400, 0x00200400, 0x00200400, 0x00200400, },
  84         { 0x1c5840, 0x206a002e, 0x206a002e, 0x206a002e, 0x206a002e, },
  85         { 0x1c5844, 0x1372161e, 0x13721c1e, 0x13721c24, 0x137216a4, },
  86         { 0x1c5848, 0x001a6a65, 0x001a6a65, 0x00197a68, 0x00197a68, },
  87         { 0x1c584c, 0x1284233c, 0x1284233c, 0x1284233c, 0x1284233c, },
  88         { 0x1c5850, 0x6c48b4e4, 0x6d48b4e4, 0x6d48b0e4, 0x6c48b0e4, },
  89         { 0x1c5854, 0x00000859, 0x00000859, 0x00000859, 0x00000859, },
  90         { 0x1c5858, 0x7ec80d2e, 0x7ec80d2e, 0x7ec80d2e, 0x7ec80d2e, },
  91         { 0x1c585c, 0x31395c5e, 0x3139605e, 0x3139605e, 0x31395c5e, },
  92         { 0x1c5860, 0x0004dd10, 0x0004dd10, 0x0004dd20, 0x0004dd20, },
  93         { 0x1c5864, 0x0001c600, 0x0001c600, 0x0001c600, 0x0001c600, },
  94         { 0x1c5868, 0x409a4190, 0x409a4190, 0x409a4190, 0x409a4190, },
  95         { 0x1c586c, 0x050cb081, 0x050cb081, 0x050cb081, 0x050cb081, },
  96         { 0x1c5900, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
  97         { 0x1c5904, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
  98         { 0x1c5908, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
  99         { 0x1c590c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 100         { 0x1c5914, 0x000007d0, 0x000007d0, 0x00000898, 0x00000898, },
 101         { 0x1c5918, 0x00000118, 0x00000230, 0x00000268, 0x00000134, },
 102         { 0x1c591c, 0x10000fff, 0x10000fff, 0x10000fff, 0x10000fff, },
 103         { 0x1c5920, 0x0510081c, 0x0510081c, 0x0510001c, 0x0510001c, },
 104         { 0x1c5924, 0xd0058a15, 0xd0058a15, 0xd0058a15, 0xd0058a15, },
 105         { 0x1c5928, 0x00000001, 0x00000001, 0x00000001, 0x00000001, },
 106         { 0x1c592c, 0x00000004, 0x00000004, 0x00000004, 0x00000004, },
 107         { 0x1c5934, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
 108         { 0x1c5938, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
 109         { 0x1c593c, 0x0000007f, 0x0000007f, 0x0000007f, 0x0000007f, },
 110         { 0x1c5944, 0xdfb81020, 0xdfb81020, 0xdfb81020, 0xdfb81020, },
 111         { 0x1c5948, 0x9280b212, 0x9280b212, 0x9280b212, 0x9280b212, },
 112         { 0x1c594c, 0x00020028, 0x00020028, 0x00020028, 0x00020028, },
 113         { 0x1c5954, 0x5d50e188, 0x5d50e188, 0x5d50e188, 0x5d50e188, },
 114         { 0x1c5958, 0x00081fff, 0x00081fff, 0x00081fff, 0x00081fff, },
 115         { 0x1c5960, 0x00009b40, 0x00009b40, 0x00009b40, 0x00009b40, },
 116         { 0x1c5964, 0x00001120, 0x00001120, 0x00001120, 0x00001120, },
 117         { 0x1c5970, 0x190fb515, 0x190fb515, 0x190fb515, 0x190fb515, },
 118         { 0x1c5974, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 119         { 0x1c5978, 0x00000001, 0x00000001, 0x00000001, 0x00000001, },
 120         { 0x1c597c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 121         { 0x1c5980, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 122         { 0x1c5984, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 123         { 0x1c5988, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 124         { 0x1c598c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 125         { 0x1c5990, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 126         { 0x1c5994, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 127         { 0x1c5998, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 128         { 0x1c599c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 129         { 0x1c59a0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 130         { 0x1c59a4, 0x00000007, 0x00000007, 0x00000007, 0x00000007, },
 131         { 0x1c59a8, 0x001fff00, 0x001fff00, 0x001fff00, 0x001fff00, },
 132         { 0x1c59ac, 0x006f00c4, 0x006f00c4, 0x006f00c4, 0x006f00c4, },
 133         { 0x1c59b0, 0x03051000, 0x03051000, 0x03051000, 0x03051000, },
 134         { 0x1c59b4, 0x00000820, 0x00000820, 0x00000820, 0x00000820, },
 135         { 0x1c59bc, 0x00181400, 0x00181400, 0x00181400, 0x00181400, },
 136         { 0x1c59c0, 0x038919be, 0x038919be, 0x038919be, 0x038919be, },
 137         { 0x1c59c4, 0x06336f77, 0x06336f77, 0x06336f77, 0x06336f77, },
 138         { 0x1c59c8, 0x6af6532c, 0x6af6532c, 0x6af6532c, 0x6af6532c, },
 139         { 0x1c59cc, 0x08f186c8, 0x08f186c8, 0x08f186c8, 0x08f186c8, },
 140         { 0x1c59d0, 0x00046384, 0x00046384, 0x00046384, 0x00046384, },
 141         { 0x1c59d4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 142         { 0x1c59d8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 143         { 0x1c59dc, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 144         { 0x1c59e0, 0x00000200, 0x00000200, 0x00000200, 0x00000200, },
 145         { 0x1c59e4, 0x64646464, 0x64646464, 0x64646464, 0x64646464, },
 146         { 0x1c59e8, 0x3c787878, 0x3c787878, 0x3c787878, 0x3c787878, },
 147         { 0x1c59ec, 0x000000aa, 0x000000aa, 0x000000aa, 0x000000aa, },
 148         { 0x1c59f0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 149         { 0x1c59fc, 0x00001042, 0x00001042, 0x00001042, 0x00001042, },
 150         { 0x1c5a00, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 151         { 0x1c5a04, 0x00000040, 0x00000040, 0x00000040, 0x00000040, },
 152         { 0x1c5a08, 0x00000080, 0x00000080, 0x00000080, 0x00000080, },
 153         { 0x1c5a0c, 0x000001a1, 0x000001a1, 0x00000141, 0x00000141, },
 154         { 0x1c5a10, 0x000001e1, 0x000001e1, 0x00000181, 0x00000181, },
 155         { 0x1c5a14, 0x00000021, 0x00000021, 0x000001c1, 0x000001c1, },
 156         { 0x1c5a18, 0x00000061, 0x00000061, 0x00000001, 0x00000001, },
 157         { 0x1c5a1c, 0x00000168, 0x00000168, 0x00000041, 0x00000041, },
 158         { 0x1c5a20, 0x000001a8, 0x000001a8, 0x000001a8, 0x000001a8, },
 159         { 0x1c5a24, 0x000001e8, 0x000001e8, 0x000001e8, 0x000001e8, },
 160         { 0x1c5a28, 0x00000028, 0x00000028, 0x00000028, 0x00000028, },
 161         { 0x1c5a2c, 0x00000068, 0x00000068, 0x00000068, 0x00000068, },
 162         { 0x1c5a30, 0x00000189, 0x00000189, 0x000000a8, 0x000000a8, },
 163         { 0x1c5a34, 0x000001c9, 0x000001c9, 0x00000169, 0x00000169, },
 164         { 0x1c5a38, 0x00000009, 0x00000009, 0x000001a9, 0x000001a9, },
 165         { 0x1c5a3c, 0x00000049, 0x00000049, 0x000001e9, 0x000001e9, },
 166         { 0x1c5a40, 0x00000089, 0x00000089, 0x00000029, 0x00000029, },
 167         { 0x1c5a44, 0x00000170, 0x00000170, 0x00000069, 0x00000069, },
 168         { 0x1c5a48, 0x000001b0, 0x000001b0, 0x00000190, 0x00000190, },
 169         { 0x1c5a4c, 0x000001f0, 0x000001f0, 0x000001d0, 0x000001d0, },
 170         { 0x1c5a50, 0x00000030, 0x00000030, 0x00000010, 0x00000010, },
 171         { 0x1c5a54, 0x00000070, 0x00000070, 0x00000050, 0x00000050, },
 172         { 0x1c5a58, 0x00000191, 0x00000191, 0x00000090, 0x00000090, },
 173         { 0x1c5a5c, 0x000001d1, 0x000001d1, 0x00000151, 0x00000151, },
 174         { 0x1c5a60, 0x00000011, 0x00000011, 0x00000191, 0x00000191, },
 175         { 0x1c5a64, 0x00000051, 0x00000051, 0x000001d1, 0x000001d1, },
 176         { 0x1c5a68, 0x00000091, 0x00000091, 0x00000011, 0x00000011, },
 177         { 0x1c5a6c, 0x000001b8, 0x000001b8, 0x00000051, 0x00000051, },
 178         { 0x1c5a70, 0x000001f8, 0x000001f8, 0x00000198, 0x00000198, },
 179         { 0x1c5a74, 0x00000038, 0x00000038, 0x000001d8, 0x000001d8, },
 180         { 0x1c5a78, 0x00000078, 0x00000078, 0x00000018, 0x00000018, },
 181         { 0x1c5a7c, 0x00000199, 0x00000199, 0x00000058, 0x00000058, },
 182         { 0x1c5a80, 0x000001d9, 0x000001d9, 0x00000098, 0x00000098, },
 183         { 0x1c5a84, 0x00000019, 0x00000019, 0x00000159, 0x00000159, },
 184         { 0x1c5a88, 0x00000059, 0x00000059, 0x00000199, 0x00000199, },
 185         { 0x1c5a8c, 0x00000099, 0x00000099, 0x000001d9, 0x000001d9, },
 186         { 0x1c5a90, 0x000000d9, 0x000000d9, 0x00000019, 0x00000019, },
 187         { 0x1c5a94, 0x000000f9, 0x000000f9, 0x00000059, 0x00000059, },
 188         { 0x1c5a98, 0x000000f9, 0x000000f9, 0x00000099, 0x00000099, },
 189         { 0x1c5a9c, 0x000000f9, 0x000000f9, 0x000000d9, 0x000000d9, },
 190         { 0x1c5aa0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 191         { 0x1c5aa4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 192         { 0x1c5aa8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 193         { 0x1c5aac, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 194         { 0x1c5ab0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 195         { 0x1c5ab4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 196         { 0x1c5ab8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 197         { 0x1c5abc, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 198         { 0x1c5ac0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 199         { 0x1c5ac4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 200         { 0x1c5ac8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 201         { 0x1c5acc, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 202         { 0x1c5ad0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 203         { 0x1c5ad4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 204         { 0x1c5ad8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 205         { 0x1c5adc, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 206         { 0x1c5ae0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 207         { 0x1c5ae4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 208         { 0x1c5ae8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 209         { 0x1c5aec, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 210         { 0x1c5af0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 211         { 0x1c5af4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 212         { 0x1c5af8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 213         { 0x1c5afc, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, },
 214         { 0x1c5b00, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 215         { 0x1c5b04, 0x00000001, 0x00000001, 0x00000001, 0x00000001, },
 216         { 0x1c5b08, 0x00000002, 0x00000002, 0x00000002, 0x00000002, },
 217         { 0x1c5b0c, 0x00000003, 0x00000003, 0x00000003, 0x00000003, },
 218         { 0x1c5b10, 0x00000004, 0x00000004, 0x00000004, 0x00000004, },
 219         { 0x1c5b14, 0x00000005, 0x00000005, 0x00000005, 0x00000005, },
 220         { 0x1c5b18, 0x00000008, 0x00000008, 0x00000008, 0x00000008, },
 221         { 0x1c5b1c, 0x00000009, 0x00000009, 0x00000009, 0x00000009, },
 222         { 0x1c5b20, 0x0000000a, 0x0000000a, 0x0000000a, 0x0000000a, },
 223         { 0x1c5b24, 0x0000000b, 0x0000000b, 0x0000000b, 0x0000000b, },
 224         { 0x1c5b28, 0x0000000c, 0x0000000c, 0x0000000c, 0x0000000c, },
 225         { 0x1c5b2c, 0x0000000d, 0x0000000d, 0x0000000d, 0x0000000d, },
 226         { 0x1c5b30, 0x00000010, 0x00000010, 0x00000010, 0x00000010, },
 227         { 0x1c5b34, 0x00000011, 0x00000011, 0x00000011, 0x00000011, },
 228         { 0x1c5b38, 0x00000012, 0x00000012, 0x00000012, 0x00000012, },
 229         { 0x1c5b3c, 0x00000013, 0x00000013, 0x00000013, 0x00000013, },
 230         { 0x1c5b40, 0x00000014, 0x00000014, 0x00000014, 0x00000014, },
 231         { 0x1c5b44, 0x00000015, 0x00000015, 0x00000015, 0x00000015, },
 232         { 0x1c5b48, 0x00000018, 0x00000018, 0x00000018, 0x00000018, },
 233         { 0x1c5b4c, 0x00000019, 0x00000019, 0x00000019, 0x00000019, },
 234         { 0x1c5b50, 0x0000001a, 0x0000001a, 0x0000001a, 0x0000001a, },
 235         { 0x1c5b54, 0x0000001b, 0x0000001b, 0x0000001b, 0x0000001b, },
 236         { 0x1c5b58, 0x0000001c, 0x0000001c, 0x0000001c, 0x0000001c, },
 237         { 0x1c5b5c, 0x0000001d, 0x0000001d, 0x0000001d, 0x0000001d, },
 238         { 0x1c5b60, 0x00000020, 0x00000020, 0x00000020, 0x00000020, },
 239         { 0x1c5b64, 0x00000021, 0x00000021, 0x00000021, 0x00000021, },
 240         { 0x1c5b68, 0x00000022, 0x00000022, 0x00000022, 0x00000022, },
 241         { 0x1c5b6c, 0x00000023, 0x00000023, 0x00000023, 0x00000023, },
 242         { 0x1c5b70, 0x00000024, 0x00000024, 0x00000024, 0x00000024, },
 243         { 0x1c5b74, 0x00000025, 0x00000025, 0x00000025, 0x00000025, },
 244         { 0x1c5b78, 0x00000028, 0x00000028, 0x00000028, 0x00000028, },
 245         { 0x1c5b7c, 0x00000029, 0x00000029, 0x00000029, 0x00000029, },
 246         { 0x1c5b80, 0x0000002a, 0x0000002a, 0x0000002a, 0x0000002a, },
 247         { 0x1c5b84, 0x0000002b, 0x0000002b, 0x0000002b, 0x0000002b, },
 248         { 0x1c5b88, 0x0000002c, 0x0000002c, 0x0000002c, 0x0000002c, },
 249         { 0x1c5b8c, 0x0000002d, 0x0000002d, 0x0000002d, 0x0000002d, },
 250         { 0x1c5b90, 0x00000030, 0x00000030, 0x00000030, 0x00000030, },
 251         { 0x1c5b94, 0x00000031, 0x00000031, 0x00000031, 0x00000031, },
 252         { 0x1c5b98, 0x00000032, 0x00000032, 0x00000032, 0x00000032, },
 253         { 0x1c5b9c, 0x00000033, 0x00000033, 0x00000033, 0x00000033, },
 254         { 0x1c5ba0, 0x00000034, 0x00000034, 0x00000034, 0x00000034, },
 255         { 0x1c5ba4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 256         { 0x1c5ba8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 257         { 0x1c5bac, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 258         { 0x1c5bb0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 259         { 0x1c5bb4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 260         { 0x1c5bb8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 261         { 0x1c5bbc, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 262         { 0x1c5bc0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 263         { 0x1c5bc4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 264         { 0x1c5bc8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 265         { 0x1c5bcc, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 266         { 0x1c5bd0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 267         { 0x1c5bd4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 268         { 0x1c5bd8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 269         { 0x1c5bdc, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 270         { 0x1c5be0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 271         { 0x1c5be4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 272         { 0x1c5be8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 273         { 0x1c5bec, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 274         { 0x1c5bf0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 275         { 0x1c5bf4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, },
 276         { 0x1c5bf8, 0x00000010, 0x00000010, 0x00000010, 0x00000010, },
 277         { 0x1c5bfc, 0x0000001a, 0x0000001a, 0x0000001a, 0x0000001a, },
 278         { 0x1c5c00, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 279         { 0x1c5c0c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 280         { 0x1c5c10, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 281         { 0x1c5c14, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 282         { 0x1c5c18, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 283         { 0x1c5c1c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 284         { 0x1c5c20, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 285         { 0x1c5c24, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 286         { 0x1c5c28, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 287         { 0x1c5c2c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 288         { 0x1c5c30, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 289         { 0x1c5c34, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 290         { 0x1c5c38, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 291         { 0x1c5c3c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 292         { 0x1c5cf0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 293         { 0x1c5cf4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 294         { 0x1c5cf8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 295         { 0x1c5cfc, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 296         { 0x1c6200, 0x00000008, 0x00000008, 0x0000000e, 0x0000000e, },
 297         { 0x1c6204, 0x00000440, 0x00000440, 0x00000440, 0x00000440, },
 298         { 0x1c6208, 0xd6be4788, 0xd6be4788, 0xd03e4788, 0xd03e4788, },
 299         { 0x1c620c, 0x012e8160, 0x012e8160, 0x012a8160, 0x012a8160, },
 300         { 0x1c6210, 0x40806333, 0x40806333, 0x40806333, 0x40806333, },
 301         { 0x1c6214, 0x00106c10, 0x00106c10, 0x00106c10, 0x00106c10, },
 302         { 0x1c6218, 0x009c4060, 0x009c4060, 0x009c4060, 0x009c4060, },
 303         { 0x1c621c, 0x1883800a, 0x1883800a, 0x1883800a, 0x1883800a, },
 304         { 0x1c6220, 0x018830c6, 0x018830c6, 0x018830c6, 0x018830c6, },
 305         { 0x1c6224, 0x00000400, 0x00000400, 0x00000400, 0x00000400, },
 306         { 0x1c6228, 0x000009b5, 0x000009b5, 0x000009b5, 0x000009b5, },
 307         { 0x1c622c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 308         { 0x1c6230, 0x00000108, 0x00000210, 0x00000210, 0x00000108, },
 309         { 0x1c6234, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
 310         { 0x1c6238, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
 311         { 0x1c623c, 0x13c889af, 0x13c889af, 0x13c889af, 0x13c889af, },
 312         { 0x1c6240, 0x38490a20, 0x38490a20, 0x38490a20, 0x38490a20, },
 313         { 0x1c6244, 0x00007bb6, 0x00007bb6, 0x00007bb6, 0x00007bb6, },
 314         { 0x1c6248, 0x0fff3ffc, 0x0fff3ffc, 0x0fff3ffc, 0x0fff3ffc, },
 315         { 0x1c624c, 0x00000001, 0x00000001, 0x00000001, 0x00000001, },
 316         { 0x1c6250, 0x0000a000, 0x0000a000, 0x0000a000, 0x0000a000, },
 317         { 0x1c6254, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 318         { 0x1c6258, 0x0cc75380, 0x0cc75380, 0x0cc75380, 0x0cc75380, },
 319         { 0x1c625c, 0x0f0f0f01, 0x0f0f0f01, 0x0f0f0f01, 0x0f0f0f01, },
 320         { 0x1c6260, 0xdfa91f01, 0xdfa91f01, 0xdfa91f01, 0xdfa91f01, },
 321         { 0x1c6264, 0x00418a11, 0x00418a11, 0x00418a11, 0x00418a11, },
 322         { 0x1c6268, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 323         { 0x1c626c, 0x09249126, 0x09249126, 0x09249126, 0x09249126, },
 324         { 0x1c6274, 0x0a1a9caa, 0x0a1a9caa, 0x0a1a7caa, 0x0a1a7caa, },
 325         { 0x1c6278, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, },
 326         { 0x1c627c, 0x051701ce, 0x051701ce, 0x051701ce, 0x051701ce, },
 327         { 0x1c6300, 0x18010000, 0x18010000, 0x18010000, 0x18010000, },
 328         { 0x1c6304, 0x30032602, 0x30032602, 0x2e032402, 0x2e032402, },
 329         { 0x1c6308, 0x48073e06, 0x48073e06, 0x4a0a3c06, 0x4a0a3c06, },
 330         { 0x1c630c, 0x560b4c0a, 0x560b4c0a, 0x621a540b, 0x621a540b, },
 331         { 0x1c6310, 0x641a600f, 0x641a600f, 0x764f6c1b, 0x764f6c1b, },
 332         { 0x1c6314, 0x7a4f6e1b, 0x7a4f6e1b, 0x845b7a5a, 0x845b7a5a, },
 333         { 0x1c6318, 0x8c5b7e5a, 0x8c5b7e5a, 0x950f8ccf, 0x950f8ccf, },
 334         { 0x1c631c, 0x9d0f96cf, 0x9d0f96cf, 0xa5cf9b4f, 0xa5cf9b4f, },
 335         { 0x1c6320, 0xb51fa69f, 0xb51fa69f, 0xbddfaf1f, 0xbddfaf1f, },
 336         { 0x1c6324, 0xcb3fbd07, 0xcb3fbcbf, 0xd1ffc93f, 0xd1ffc93f, },
 337         { 0x1c6328, 0x0000d7bf, 0x0000d7bf, 0x00000000, 0x00000000, },
 338         { 0x1c632c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 339         { 0x1c6330, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 340         { 0x1c6334, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 341         { 0x1c6338, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 342         { 0x1c633c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 343         { 0x1c6340, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 344         { 0x1c6344, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 345         { 0x1c6348, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x3fffffff, },
 346         { 0x1c634c, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x3fffffff, },
 347         { 0x1c6350, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x3fffffff, },
 348         { 0x1c6354, 0x0003ffff, 0x0003ffff, 0x0003ffff, 0x0003ffff, },
 349         { 0x1c6358, 0x79a8aa1f, 0x79a8aa1f, 0x79a8aa1f, 0x79a8aa1f, },
 350         { 0x1c6388, 0x08000000, 0x08000000, 0x08000000, 0x08000000, },
 351         { 0x1c638c, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
 352         { 0x1c6390, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
 353         { 0x1c6394, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, },
 354         { 0x1c6398, 0x000001ce, 0x000001ce, 0x000001ce, 0x000001ce, },
 355         { 0x1c639c, 0x00000007, 0x00000007, 0x00000007, 0x00000007, },
 356         { 0x1c63a0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 357         { 0x1c63a4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 358         { 0x1c63a8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 359         { 0x1c63ac, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 360         { 0x1c63b0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 361         { 0x1c63b4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 362         { 0x1c63b8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 363         { 0x1c63bc, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 364         { 0x1c63c0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 365         { 0x1c63c4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 366         { 0x1c63c8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 367         { 0x1c63cc, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
 368         { 0x1c63d0, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
 369         { 0x1c63d4, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, },
 370         { 0x1c63d8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, },
 371         { 0x1c63dc, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, },
 372         { 0x1c63e0, 0x000000c0, 0x000000c0, 0x000000c0, 0x000000c0, },
 373         { 0x1c6848, 0x00180a65, 0x00180a65, 0x00180a68, 0x00180a68, },
 374         { 0x1c6920, 0x0510001c, 0x0510001c, 0x0510001c, 0x0510001c, },
 375         { 0x1c6960, 0x00009b40, 0x00009b40, 0x00009b40, 0x00009b40, },
 376         { 0x1c720c, 0x012e8160, 0x012e8160, 0x012a8160, 0x012a8160, },
 377         { 0x1c726c, 0x09249126, 0x09249126, 0x09249126, 0x09249126, },
 378         { 0x1c7848, 0x00180a65, 0x00180a65, 0x00180a68, 0x00180a68, },
 379         { 0x1c7920, 0x0510001c, 0x0510001c, 0x0510001c, 0x0510001c, },
 380         { 0x1c7960, 0x00009b40, 0x00009b40, 0x00009b40, 0x00009b40, },
 381         { 0x1c820c, 0x012e8160, 0x012e8160, 0x012a8160, 0x012a8160, },
 382         { 0x1c826c, 0x09249126, 0x09249126, 0x09249126, 0x09249126, },
 383 /*      { 0x1c8864, 0x0001ce00, 0x0001ce00, 0x0001ce00, 0x0001ce00, }, */
 384         { 0x1c8864, 0x0001c600, 0x0001c600, 0x0001c600, 0x0001c600, },
 385         { 0x1c895c, 0x004b6a8e, 0x004b6a8e, 0x004b6a8e, 0x004b6a8e, },
 386         { 0x1c8968, 0x000003ce, 0x000003ce, 0x000003ce, 0x000003ce, },
 387         { 0x1c89bc, 0x00181400, 0x00181400, 0x00181400, 0x00181400, },
 388         { 0x1c9270, 0x00820820, 0x00820820, 0x00820820, 0x00820820, },
 389         { 0x1c935c, 0x066c420f, 0x066c420f, 0x066c420f, 0x066c420f, },
 390         { 0x1c9360, 0x0f282207, 0x0f282207, 0x0f282207, 0x0f282207, },
 391         { 0x1c9364, 0x17601685, 0x17601685, 0x17601685, 0x17601685, },
 392         { 0x1c9368, 0x1f801104, 0x1f801104, 0x1f801104, 0x1f801104, },
 393         { 0x1c936c, 0x37a00c03, 0x37a00c03, 0x37a00c03, 0x37a00c03, },
 394         { 0x1c9370, 0x3fc40883, 0x3fc40883, 0x3fc40883, 0x3fc40883, },
 395         { 0x1c9374, 0x57c00803, 0x57c00803, 0x57c00803, 0x57c00803, },
 396         { 0x1c9378, 0x5fd80682, 0x5fd80682, 0x5fd80682, 0x5fd80682, },
 397         { 0x1c937c, 0x7fe00482, 0x7fe00482, 0x7fe00482, 0x7fe00482, },
 398         { 0x1c9380, 0x7f3c7bba, 0x7f3c7bba, 0x7f3c7bba, 0x7f3c7bba, },
 399         { 0x1c9384, 0xf3307ff0, 0xf3307ff0, 0xf3307ff0, 0xf3307ff0, }
 400 };
 401
 402 /*
 403  * look up a certain register in ar5416_phy_init[] and return the init. value
 404  * for the band and bandwidth given. Return 0 if register address not found.
 405  */
 406 static u32 carl9170_def_val(u32 reg, bool is_2ghz, bool is_40mhz)
 407 {
 408         unsigned int i;
 409         for (i = 0; i < ARRAY_SIZE(ar5416_phy_init); i++) {
 410                 if (ar5416_phy_init[i].reg != reg)
 411                         continue;
 412
 413                 if (is_2ghz) {
 414                         if (is_40mhz)
 415                                 return ar5416_phy_init[i]._2ghz_40;
 416                         else
 417                                 return ar5416_phy_init[i]._2ghz_20;
 418                 } else {
 419                         if (is_40mhz)
 420                                 return ar5416_phy_init[i]._5ghz_40;
 421                         else
 422                                 return ar5416_phy_init[i]._5ghz_20;
 423                 }
 424         }
 425         return 0;
 426 }
 427
 428 /*
 429  * initialize some phy regs from eeprom values in modal_header[]
 430  * acc. to band and bandwidth
 431  */
 432 static int carl9170_init_phy_from_eeprom(struct ar9170 *ar,
 433                                 bool is_2ghz, bool is_40mhz)
 434 {
 435         static const u8 xpd2pd[16] = {
 436                 0x2, 0x2, 0x2, 0x1, 0x2, 0x2, 0x6, 0x2,
 437                 0x2, 0x3, 0x7, 0x2, 0xb, 0x2, 0x2, 0x2
 438         };
 439         /* pointer to the modal_header acc. to band */
 440         struct ar9170_eeprom_modal *m = &ar->eeprom.modal_header[is_2ghz];
 441         u32 val;
 442
 443         carl9170_regwrite_begin(ar);
 444
 445         /* ant common control (index 0) */
 446         carl9170_regwrite(AR9170_PHY_REG_SWITCH_COM,
 447                 le32_to_cpu(m->antCtrlCommon));
 448
 449         /* ant control chain 0 (index 1) */
 450         carl9170_regwrite(AR9170_PHY_REG_SWITCH_CHAIN_0,
 451                 le32_to_cpu(m->antCtrlChain[0]));
 452
 453         /* ant control chain 2 (index 2) */
 454         carl9170_regwrite(AR9170_PHY_REG_SWITCH_CHAIN_2,
 455                 le32_to_cpu(m->antCtrlChain[1]));
 456
 457         /* SwSettle (index 3) */
 458         if (!is_40mhz) {
 459                 val = carl9170_def_val(AR9170_PHY_REG_SETTLING,
 460                                      is_2ghz, is_40mhz);
 461                 SET_VAL(AR9170_PHY_SETTLING_SWITCH, val, m->switchSettling);
 462                 carl9170_regwrite(AR9170_PHY_REG_SETTLING, val);
 463         }
 464
 465         /* adcDesired, pdaDesired (index 4) */
 466         val = carl9170_def_val(AR9170_PHY_REG_DESIRED_SZ, is_2ghz, is_40mhz);
 467         SET_VAL(AR9170_PHY_DESIRED_SZ_PGA, val, m->pgaDesiredSize);
 468         SET_VAL(AR9170_PHY_DESIRED_SZ_ADC, val, m->adcDesiredSize);
 469         carl9170_regwrite(AR9170_PHY_REG_DESIRED_SZ, val);
 470
 471         /* TxEndToXpaOff, TxFrameToXpaOn (index 5) */
 472         val = carl9170_def_val(AR9170_PHY_REG_RF_CTL4, is_2ghz, is_40mhz);
 473         SET_VAL(AR9170_PHY_RF_CTL4_TX_END_XPAB_OFF, val, m->txEndToXpaOff);
 474         SET_VAL(AR9170_PHY_RF_CTL4_TX_END_XPAA_OFF, val, m->txEndToXpaOff);
 475         SET_VAL(AR9170_PHY_RF_CTL4_FRAME_XPAB_ON, val, m->txFrameToXpaOn);
 476         SET_VAL(AR9170_PHY_RF_CTL4_FRAME_XPAA_ON, val, m->txFrameToXpaOn);
 477         carl9170_regwrite(AR9170_PHY_REG_RF_CTL4, val);
 478
 479         /* TxEndToRxOn (index 6) */
 480         val = carl9170_def_val(AR9170_PHY_REG_RF_CTL3, is_2ghz, is_40mhz);
 481         SET_VAL(AR9170_PHY_RF_CTL3_TX_END_TO_A2_RX_ON, val, m->txEndToRxOn);
 482         carl9170_regwrite(AR9170_PHY_REG_RF_CTL3, val);
 483
 484         /* thresh62 (index 7) */
 485         val = carl9170_def_val(0x1c8864, is_2ghz, is_40mhz);
 486         val = (val & ~0x7f000) | (m->thresh62 << 12);
 487         carl9170_regwrite(0x1c8864, val);
 488
 489         /* tx/rx attenuation chain 0 (index 8) */
 490         val = carl9170_def_val(AR9170_PHY_REG_RXGAIN, is_2ghz, is_40mhz);
 491         SET_VAL(AR9170_PHY_RXGAIN_TXRX_ATTEN, val, m->txRxAttenCh[0]);
 492         carl9170_regwrite(AR9170_PHY_REG_RXGAIN, val);
 493
 494         /* tx/rx attenuation chain 2 (index 9) */
 495         val = carl9170_def_val(AR9170_PHY_REG_RXGAIN_CHAIN_2,
 496                                is_2ghz, is_40mhz);
 497         SET_VAL(AR9170_PHY_RXGAIN_TXRX_ATTEN, val, m->txRxAttenCh[1]);
 498         carl9170_regwrite(AR9170_PHY_REG_RXGAIN_CHAIN_2, val);
 499
 500         /* tx/rx margin chain 0 (index 10) */
 501         val = carl9170_def_val(AR9170_PHY_REG_GAIN_2GHZ, is_2ghz, is_40mhz);
 502         SET_VAL(AR9170_PHY_GAIN_2GHZ_RXTX_MARGIN, val, m->rxTxMarginCh[0]);
 503         /* bsw margin chain 0 for 5GHz only */
 504         if (!is_2ghz)
 505                 SET_VAL(AR9170_PHY_GAIN_2GHZ_BSW_MARGIN, val, m->bswMargin[0]);
 506         carl9170_regwrite(AR9170_PHY_REG_GAIN_2GHZ, val);
 507
 508         /* tx/rx margin chain 2 (index 11) */
 509         val = carl9170_def_val(AR9170_PHY_REG_GAIN_2GHZ_CHAIN_2,
 510                                is_2ghz, is_40mhz);
 511         SET_VAL(AR9170_PHY_GAIN_2GHZ_RXTX_MARGIN, val, m->rxTxMarginCh[1]);
 512         carl9170_regwrite(AR9170_PHY_REG_GAIN_2GHZ_CHAIN_2, val);
 513
 514         /* iqCall, iqCallq chain 0 (index 12) */
 515         val = carl9170_def_val(AR9170_PHY_REG_TIMING_CTRL4(0),
 516                                is_2ghz, is_40mhz);
 517         SET_VAL(AR9170_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF, val, m->iqCalICh[0]);
 518         SET_VAL(AR9170_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF, val, m->iqCalQCh[0]);
 519         carl9170_regwrite(AR9170_PHY_REG_TIMING_CTRL4(0), val);
 520
 521         /* iqCall, iqCallq chain 2 (index 13) */
 522         val = carl9170_def_val(AR9170_PHY_REG_TIMING_CTRL4(2),
 523                                is_2ghz, is_40mhz);
 524         SET_VAL(AR9170_PHY_TIMING_CTRL4_IQCORR_Q_I_COFF, val, m->iqCalICh[1]);
 525         SET_VAL(AR9170_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF, val, m->iqCalQCh[1]);
 526         carl9170_regwrite(AR9170_PHY_REG_TIMING_CTRL4(2), val);
 527
 528         /* xpd gain mask (index 14) */
 529         val = carl9170_def_val(AR9170_PHY_REG_TPCRG1, is_2ghz, is_40mhz);
 530         SET_VAL(AR9170_PHY_TPCRG1_PD_GAIN_1, val,
 531                 xpd2pd[m->xpdGain & 0xf] & 3);
 532         SET_VAL(AR9170_PHY_TPCRG1_PD_GAIN_2, val,
 533                 xpd2pd[m->xpdGain & 0xf] >> 2);
 534         carl9170_regwrite(AR9170_PHY_REG_TPCRG1, val);
 535
 536         carl9170_regwrite(AR9170_PHY_REG_RX_CHAINMASK, ar->eeprom.rx_mask);
 537         carl9170_regwrite(AR9170_PHY_REG_CAL_CHAINMASK, ar->eeprom.rx_mask);
 538
 539         carl9170_regwrite_finish();
 540         return carl9170_regwrite_result();
 541 }
 542
 543 static int carl9170_init_phy(struct ar9170 *ar, enum ieee80211_band band)
 544 {
 545         int i, err;
 546         u32 val;
 547         bool is_2ghz = band == IEEE80211_BAND_2GHZ;
 548         bool is_40mhz = conf_is_ht40(&ar->hw->conf);
 549
 550         carl9170_regwrite_begin(ar);
 551
 552         for (i = 0; i < ARRAY_SIZE(ar5416_phy_init); i++) {
 553                 if (is_40mhz) {
 554                         if (is_2ghz)
 555                                 val = ar5416_phy_init[i]._2ghz_40;
 556                         else
 557                                 val = ar5416_phy_init[i]._5ghz_40;
 558                 } else {
 559                         if (is_2ghz)
 560                                 val = ar5416_phy_init[i]._2ghz_20;
 561                         else
 562                                 val = ar5416_phy_init[i]._5ghz_20;
 563                 }
 564
 565                 carl9170_regwrite(ar5416_phy_init[i].reg, val);
 566         }
 567
 568         carl9170_regwrite_finish();
 569         err = carl9170_regwrite_result();
 570         if (err)
 571                 return err;
 572
 573         err = carl9170_init_phy_from_eeprom(ar, is_2ghz, is_40mhz);
 574         if (err)
 575                 return err;
 576
 577         err = carl9170_init_power_cal(ar);
 578         if (err)
 579                 return err;
 580
 581         /* XXX: remove magic! */
 582         if (is_2ghz)
 583                 err = carl9170_write_reg(ar, AR9170_PWR_REG_PLL_ADDAC, 0x5163);
 584         else
 585                 err = carl9170_write_reg(ar, AR9170_PWR_REG_PLL_ADDAC, 0x5143);
 586
 587         return err;
 588 }
 589
 590 struct carl9170_rf_initvals {
 591         u32 reg, _5ghz, _2ghz;
 592 };
 593
 594 static struct carl9170_rf_initvals carl9170_rf_initval[] = {
 595         /* bank 0 */
 596         { 0x1c58b0, 0x1e5795e5, 0x1e5795e5},
 597         { 0x1c58e0, 0x02008020, 0x02008020},
 598         /* bank 1 */
 599         { 0x1c58b0, 0x02108421, 0x02108421},
 600         { 0x1c58ec, 0x00000008, 0x00000008},
 601         /* bank 2 */
 602         { 0x1c58b0, 0x0e73ff17, 0x0e73ff17},
 603         { 0x1c58e0, 0x00000420, 0x00000420},
 604         /* bank 3 */
 605         { 0x1c58f0, 0x01400018, 0x01c00018},
 606         /* bank 4 */
 607         { 0x1c58b0, 0x000001a1, 0x000001a1},
 608         { 0x1c58e8, 0x00000001, 0x00000001},
 609         /* bank 5 */
 610         { 0x1c58b0, 0x00000013, 0x00000013},
 611         { 0x1c58e4, 0x00000002, 0x00000002},
 612         /* bank 6 */
 613         { 0x1c58b0, 0x00000000, 0x00000000},
 614         { 0x1c58b0, 0x00000000, 0x00000000},
 615         { 0x1c58b0, 0x00000000, 0x00000000},
 616         { 0x1c58b0, 0x00000000, 0x00000000},
 617         { 0x1c58b0, 0x00000000, 0x00000000},
 618         { 0x1c58b0, 0x00004000, 0x00004000},
 619         { 0x1c58b0, 0x00006c00, 0x00006c00},
 620         { 0x1c58b0, 0x00002c00, 0x00002c00},
 621         { 0x1c58b0, 0x00004800, 0x00004800},
 622         { 0x1c58b0, 0x00004000, 0x00004000},
 623         { 0x1c58b0, 0x00006000, 0x00006000},
 624         { 0x1c58b0, 0x00001000, 0x00001000},
 625         { 0x1c58b0, 0x00004000, 0x00004000},
 626         { 0x1c58b0, 0x00007c00, 0x00007c00},
 627         { 0x1c58b0, 0x00007c00, 0x00007c00},
 628         { 0x1c58b0, 0x00007c00, 0x00007c00},
 629         { 0x1c58b0, 0x00007c00, 0x00007c00},
 630         { 0x1c58b0, 0x00007c00, 0x00007c00},
 631         { 0x1c58b0, 0x00087c00, 0x00087c00},
 632         { 0x1c58b0, 0x00007c00, 0x00007c00},
 633         { 0x1c58b0, 0x00005400, 0x00005400},
 634         { 0x1c58b0, 0x00000c00, 0x00000c00},
 635         { 0x1c58b0, 0x00001800, 0x00001800},
 636         { 0x1c58b0, 0x00007c00, 0x00007c00},
 637         { 0x1c58b0, 0x00006c00, 0x00006c00},
 638         { 0x1c58b0, 0x00006c00, 0x00006c00},
 639         { 0x1c58b0, 0x00007c00, 0x00007c00},
 640         { 0x1c58b0, 0x00002c00, 0x00002c00},
 641         { 0x1c58b0, 0x00003c00, 0x00003c00},
 642         { 0x1c58b0, 0x00003800, 0x00003800},
 643         { 0x1c58b0, 0x00001c00, 0x00001c00},
 644         { 0x1c58b0, 0x00000800, 0x00000800},
 645         { 0x1c58b0, 0x00000408, 0x00000408},
 646         { 0x1c58b0, 0x00004c15, 0x00004c15},
 647         { 0x1c58b0, 0x00004188, 0x00004188},
 648         { 0x1c58b0, 0x0000201e, 0x0000201e},
 649         { 0x1c58b0, 0x00010408, 0x00010408},
 650         { 0x1c58b0, 0x00000801, 0x00000801},
 651         { 0x1c58b0, 0x00000c08, 0x00000c08},
 652         { 0x1c58b0, 0x0000181e, 0x0000181e},
 653         { 0x1c58b0, 0x00001016, 0x00001016},
 654         { 0x1c58b0, 0x00002800, 0x00002800},
 655         { 0x1c58b0, 0x00004010, 0x00004010},
 656         { 0x1c58b0, 0x0000081c, 0x0000081c},
 657         { 0x1c58b0, 0x00000115, 0x00000115},
 658         { 0x1c58b0, 0x00000015, 0x00000015},
 659         { 0x1c58b0, 0x00000066, 0x00000066},
 660         { 0x1c58b0, 0x0000001c, 0x0000001c},
 661         { 0x1c58b0, 0x00000000, 0x00000000},
 662         { 0x1c58b0, 0x00000004, 0x00000004},
 663         { 0x1c58b0, 0x00000015, 0x00000015},
 664         { 0x1c58b0, 0x0000001f, 0x0000001f},
 665         { 0x1c58e0, 0x00000000, 0x00000400},
 666         /* bank 7 */
 667         { 0x1c58b0, 0x000000a0, 0x000000a0},
 668         { 0x1c58b0, 0x00000000, 0x00000000},
 669         { 0x1c58b0, 0x00000040, 0x00000040},
 670         { 0x1c58f0, 0x0000001c, 0x0000001c},
 671 };
 672
 673 static int carl9170_init_rf_banks_0_7(struct ar9170 *ar, bool band5ghz)
 674 {
 675         int err, i;
 676
 677         carl9170_regwrite_begin(ar);
 678
 679         for (i = 0; i < ARRAY_SIZE(carl9170_rf_initval); i++)
 680                 carl9170_regwrite(carl9170_rf_initval[i].reg,
 681                                   band5ghz ? carl9170_rf_initval[i]._5ghz
 682                                            : carl9170_rf_initval[i]._2ghz);
 683
 684         carl9170_regwrite_finish();
 685         err = carl9170_regwrite_result();
 686         if (err)
 687                 wiphy_err(ar->hw->wiphy, "rf init failed\n");
 688
 689         return err;
 690 }
 691
 692 struct carl9170_phy_freq_params {
 693         u8 coeff_exp;
 694         u16 coeff_man;
 695         u8 coeff_exp_shgi;
 696         u16 coeff_man_shgi;
 697 };
 698
 699 enum carl9170_bw {
 700         CARL9170_BW_20,
 701         CARL9170_BW_40_BELOW,
 702         CARL9170_BW_40_ABOVE,
 703
 704         __CARL9170_NUM_BW,
 705 };
 706
 707 struct carl9170_phy_freq_entry {
 708         u16 freq;
 709         struct carl9170_phy_freq_params params[__CARL9170_NUM_BW];
 710 };
 711
 712 /* NB: must be in sync with channel tables in main! */
 713 static const struct carl9170_phy_freq_entry carl9170_phy_freq_params[] = {
 714 /*
 715  *      freq,
 716  *              20MHz,
 717  *              40MHz (below),
 718  *              40Mhz (above),
 719  */
 720         { 2412, {
 721                 { 3, 21737, 3, 19563, },
 722                 { 3, 21827, 3, 19644, },
 723                 { 3, 21647, 3, 19482, },
 724         } },
 725         { 2417, {
 726                 { 3, 21692, 3, 19523, },
 727                 { 3, 21782, 3, 19604, },
 728                 { 3, 21602, 3, 19442, },
 729         } },
 730         { 2422, {
 731                 { 3, 21647, 3, 19482, },
 732                 { 3, 21737, 3, 19563, },
 733                 { 3, 21558, 3, 19402, },
 734         } },
 735         { 2427, {
 736                 { 3, 21602, 3, 19442, },
 737                 { 3, 21692, 3, 19523, },
 738                 { 3, 21514, 3, 19362, },
 739         } },
 740         { 2432, {
 741                 { 3, 21558, 3, 19402, },
 742                 { 3, 21647, 3, 19482, },
 743                 { 3, 21470, 3, 19323, },
 744         } },
 745         { 2437, {
 746                 { 3, 21514, 3, 19362, },
 747                 { 3, 21602, 3, 19442, },
 748                 { 3, 21426, 3, 19283, },
 749         } },
 750         { 2442, {
 751                 { 3, 21470, 3, 19323, },
 752                 { 3, 21558, 3, 19402, },
 753                 { 3, 21382, 3, 19244, },
 754         } },
 755         { 2447, {
 756                 { 3, 21426, 3, 19283, },
 757                 { 3, 21514, 3, 19362, },
 758                 { 3, 21339, 3, 19205, },
 759         } },
 760         { 2452, {
 761                 { 3, 21382, 3, 19244, },
 762                 { 3, 21470, 3, 19323, },
 763                 { 3, 21295, 3, 19166, },
 764         } },
 765         { 2457, {
 766                 { 3, 21339, 3, 19205, },
 767                 { 3, 21426, 3, 19283, },
 768                 { 3, 21252, 3, 19127, },
 769         } },
 770         { 2462, {
 771                 { 3, 21295, 3, 19166, },
 772                 { 3, 21382, 3, 19244, },
 773                 { 3, 21209, 3, 19088, },
 774         } },
 775         { 2467, {
 776                 { 3, 21252, 3, 19127, },
 777                 { 3, 21339, 3, 19205, },
 778                 { 3, 21166, 3, 19050, },
 779         } },
 780         { 2472, {
 781                 { 3, 21209, 3, 19088, },
 782                 { 3, 21295, 3, 19166, },
 783                 { 3, 21124, 3, 19011, },
 784         } },
 785         { 2484, {
 786                 { 3, 21107, 3, 18996, },
 787                 { 3, 21192, 3, 19073, },
 788                 { 3, 21022, 3, 18920, },
 789         } },
 790         { 4920, {
 791                 { 4, 21313, 4, 19181, },
 792                 { 4, 21356, 4, 19220, },
 793                 { 4, 21269, 4, 19142, },
 794         } },
 795         { 4940, {
 796                 { 4, 21226, 4, 19104, },
 797                 { 4, 21269, 4, 19142, },
 798                 { 4, 21183, 4, 19065, },
 799         } },
 800         { 4960, {
 801                 { 4, 21141, 4, 19027, },
 802                 { 4, 21183, 4, 19065, },
 803                 { 4, 21098, 4, 18988, },
 804         } },
 805         { 4980, {
 806                 { 4, 21056, 4, 18950, },
 807                 { 4, 21098, 4, 18988, },
 808                 { 4, 21014, 4, 18912, },
 809         } },
 810         { 5040, {
 811                 { 4, 20805, 4, 18725, },
 812                 { 4, 20846, 4, 18762, },
 813                 { 4, 20764, 4, 18687, },
 814         } },
 815         { 5060, {
 816                 { 4, 20723, 4, 18651, },
 817                 { 4, 20764, 4, 18687, },
 818                 { 4, 20682, 4, 18614, },
 819         } },
 820         { 5080, {
 821                 { 4, 20641, 4, 18577, },
 822                 { 4, 20682, 4, 18614, },
 823                 { 4, 20601, 4, 18541, },
 824         } },
 825         { 5180, {
 826                 { 4, 20243, 4, 18219, },
 827                 { 4, 20282, 4, 18254, },
 828                 { 4, 20204, 4, 18183, },
 829         } },
 830         { 5200, {
 831                 { 4, 20165, 4, 18148, },
 832                 { 4, 20204, 4, 18183, },
 833                 { 4, 20126, 4, 18114, },
 834         } },
 835         { 5220, {
 836                 { 4, 20088, 4, 18079, },
 837                 { 4, 20126, 4, 18114, },
 838                 { 4, 20049, 4, 18044, },
 839         } },
 840         { 5240, {
 841                 { 4, 20011, 4, 18010, },
 842                 { 4, 20049, 4, 18044, },
 843                 { 4, 19973, 4, 17976, },
 844         } },
 845         { 5260, {
 846                 { 4, 19935, 4, 17941, },
 847                 { 4, 19973, 4, 17976, },
 848                 { 4, 19897, 4, 17907, },
 849         } },
 850         { 5280, {
 851                 { 4, 19859, 4, 17873, },
 852                 { 4, 19897, 4, 17907, },
 853                 { 4, 19822, 4, 17840, },
 854         } },
 855         { 5300, {
 856                 { 4, 19784, 4, 17806, },
 857                 { 4, 19822, 4, 17840, },
 858                 { 4, 19747, 4, 17772, },
 859         } },
 860         { 5320, {
 861                 { 4, 19710, 4, 17739, },
 862                 { 4, 19747, 4, 17772, },
 863                 { 4, 19673, 4, 17706, },
 864         } },
 865         { 5500, {
 866                 { 4, 19065, 4, 17159, },
 867                 { 4, 19100, 4, 17190, },
 868                 { 4, 19030, 4, 17127, },
 869         } },
 870         { 5520, {
 871                 { 4, 18996, 4, 17096, },
 872                 { 4, 19030, 4, 17127, },
 873                 { 4, 18962, 4, 17065, },
 874         } },
 875         { 5540, {
 876                 { 4, 18927, 4, 17035, },
 877                 { 4, 18962, 4, 17065, },
 878                 { 4, 18893, 4, 17004, },
 879         } },
 880         { 5560, {
 881                 { 4, 18859, 4, 16973, },
 882                 { 4, 18893, 4, 17004, },
 883                 { 4, 18825, 4, 16943, },
 884         } },
 885         { 5580, {
 886                 { 4, 18792, 4, 16913, },
 887                 { 4, 18825, 4, 16943, },
 888                 { 4, 18758, 4, 16882, },
 889         } },
 890         { 5600, {
 891                 { 4, 18725, 4, 16852, },
 892                 { 4, 18758, 4, 16882, },
 893                 { 4, 18691, 4, 16822, },
 894         } },
 895         { 5620, {
 896                 { 4, 18658, 4, 16792, },
 897                 { 4, 18691, 4, 16822, },
 898                 { 4, 18625, 4, 16762, },
 899         } },
 900         { 5640, {
 901                 { 4, 18592, 4, 16733, },
 902                 { 4, 18625, 4, 16762, },
 903                 { 4, 18559, 4, 16703, },
 904         } },
 905         { 5660, {
 906                 { 4, 18526, 4, 16673, },
 907                 { 4, 18559, 4, 16703, },
 908                 { 4, 18493, 4, 16644, },
 909         } },
 910         { 5680, {
 911                 { 4, 18461, 4, 16615, },
 912                 { 4, 18493, 4, 16644, },
 913                 { 4, 18428, 4, 16586, },
 914         } },
 915         { 5700, {
 916                 { 4, 18396, 4, 16556, },
 917                 { 4, 18428, 4, 16586, },
 918                 { 4, 18364, 4, 16527, },
 919         } },
 920         { 5745, {
 921                 { 4, 18252, 4, 16427, },
 922                 { 4, 18284, 4, 16455, },
 923                 { 4, 18220, 4, 16398, },
 924         } },
 925         { 5765, {
 926                 { 4, 18189, 5, 32740, },
 927                 { 4, 18220, 4, 16398, },
 928                 { 4, 18157, 5, 32683, },
 929         } },
 930         { 5785, {
 931                 { 4, 18126, 5, 32626, },
 932                 { 4, 18157, 5, 32683, },
 933                 { 4, 18094, 5, 32570, },
 934         } },
 935         { 5805, {
 936                 { 4, 18063, 5, 32514, },
 937                 { 4, 18094, 5, 32570, },
 938                 { 4, 18032, 5, 32458, },
 939         } },
 940         { 5825, {
 941                 { 4, 18001, 5, 32402, },
 942                 { 4, 18032, 5, 32458, },
 943                 { 4, 17970, 5, 32347, },
 944         } },
 945         { 5170, {
 946                 { 4, 20282, 4, 18254, },
 947                 { 4, 20321, 4, 18289, },
 948                 { 4, 20243, 4, 18219, },
 949         } },
 950         { 5190, {
 951                 { 4, 20204, 4, 18183, },
 952                 { 4, 20243, 4, 18219, },
 953                 { 4, 20165, 4, 18148, },
 954         } },
 955         { 5210, {
 956                 { 4, 20126, 4, 18114, },
 957                 { 4, 20165, 4, 18148, },
 958                 { 4, 20088, 4, 18079, },
 959         } },
 960         { 5230, {
 961                 { 4, 20049, 4, 18044, },
 962                 { 4, 20088, 4, 18079, },
 963                 { 4, 20011, 4, 18010, },
 964         } },
 965 };
 966
 967 static int carl9170_init_rf_bank4_pwr(struct ar9170 *ar, bool band5ghz,
 968                                       u32 freq, enum carl9170_bw bw)
 969 {
 970         int err;
 971         u32 d0, d1, td0, td1, fd0, fd1;
 972         u8 chansel;
 973         u8 refsel0 = 1, refsel1 = 0;
 974         u8 lf_synth = 0;
 975
 976         switch (bw) {
 977         case CARL9170_BW_40_ABOVE:
 978                 freq += 10;
 979                 break;
 980         case CARL9170_BW_40_BELOW:
 981                 freq -= 10;
 982                 break;
 983         case CARL9170_BW_20:
 984                 break;
 985         default:
 986                 BUG();
 987                 return -ENOSYS;
 988         }
 989
 990         if (band5ghz) {
 991                 if (freq % 10) {
 992                         chansel = (freq - 4800) / 5;
 993                 } else {
 994                         chansel = ((freq - 4800) / 10) * 2;
 995                         refsel0 = 0;
 996                         refsel1 = 1;
 997                 }
 998                 chansel = byte_rev_table[chansel];
 999         } else {
1000                 if (freq == 2484) {
1001                         chansel = 10 + (freq - 2274) / 5;
1002                         lf_synth = 1;
1003                 } else
1004                         chansel = 16 + (freq - 2272) / 5;
1005                 chansel *= 4;
1006                 chansel = byte_rev_table[chansel];
1007         }
1008
1009         d1 =    chansel;
1010         d0 =    0x21 |
1011                 refsel0 << 3 |
1012                 refsel1 << 2 |
1013                 lf_synth << 1;
1014         td0 =   d0 & 0x1f;
1015         td1 =   d1 & 0x1f;
1016         fd0 =   td1 << 5 | td0;
1017
1018         td0 =   (d0 >> 5) & 0x7;
1019         td1 =   (d1 >> 5) & 0x7;
1020         fd1 =   td1 << 5 | td0;
1021
1022         carl9170_regwrite_begin(ar);
1023
1024         carl9170_regwrite(0x1c58b0, fd0);
1025         carl9170_regwrite(0x1c58e8, fd1);
1026
1027         carl9170_regwrite_finish();
1028         err = carl9170_regwrite_result();
1029         if (err)
1030                 return err;
1031
1032         return 0;
1033 }
1034
1035 static const struct carl9170_phy_freq_params *
1036 carl9170_get_hw_dyn_params(struct ieee80211_channel *channel,
1037                            enum carl9170_bw bw)
1038 {
1039         unsigned int chanidx = 0;
1040         u16 freq = 2412;
1041
1042         if (channel) {
1043                 chanidx = channel->hw_value;
1044                 freq = channel->center_freq;
1045         }
1046
1047         BUG_ON(chanidx >= ARRAY_SIZE(carl9170_phy_freq_params));
1048
1049         BUILD_BUG_ON(__CARL9170_NUM_BW != 3);
1050
1051         WARN_ON(carl9170_phy_freq_params[chanidx].freq != freq);
1052
1053         return &carl9170_phy_freq_params[chanidx].params[bw];
1054 }
1055
1056 static int carl9170_find_freq_idx(int nfreqs, u8 *freqs, u8 f)
1057 {
1058         int idx = nfreqs - 2;
1059
1060         while (idx >= 0) {
1061                 if (f >= freqs[idx])
1062                         return idx;
1063                 idx--;
1064         }
1065
1066         return 0;
1067 }
1068
1069 static s32 carl9170_interpolate_s32(s32 x, s32 x1, s32 y1, s32 x2, s32 y2)
1070 {
1071         /* nothing to interpolate, it's horizontal */
1072         if (y2 == y1)
1073                 return y1;
1074
1075         /* check if we hit one of the edges */
1076         if (x == x1)
1077                 return y1;
1078         if (x == x2)
1079                 return y2;
1080
1081         /* x1 == x2 is bad, hopefully == x */
1082         if (x2 == x1)
1083                 return y1;
1084
1085         return y1 + (((y2 - y1) * (x - x1)) / (x2 - x1));
1086 }
1087
1088 static u8 carl9170_interpolate_u8(u8 x, u8 x1, u8 y1, u8 x2, u8 y2)
1089 {
1090 #define SHIFT           8
1091         s32 y;
1092
1093         y = carl9170_interpolate_s32(x << SHIFT, x1 << SHIFT,
1094                 y1 << SHIFT, x2 << SHIFT, y2 << SHIFT);
1095
1096         /*
1097          * XXX: unwrap this expression
1098          *      Isn't it just DIV_ROUND_UP(y, 1<<SHIFT)?
1099          *      Can we rely on the compiler to optimise away the div?
1100          */
1101         return (y >> SHIFT) + ((y & (1<<(SHIFT-1))) >> (SHIFT - 1));
1102 #undef SHIFT
1103 }
1104
1105 static u8 carl9170_interpolate_val(u8 x, u8 *x_array, u8 *y_array)
1106 {
1107         int i;
1108
1109         for (i = 0; i < 3; i++) {
1110                 if (x <= x_array[i + 1])
1111                         break;
1112         }
1113
1114         return carl9170_interpolate_u8(x, x_array[i], y_array[i],
1115                 x_array[i + 1], y_array[i + 1]);
1116 }
1117
1118 static int carl9170_set_freq_cal_data(struct ar9170 *ar,
1119         struct ieee80211_channel *channel)
1120 {
1121         u8 *cal_freq_pier;
1122         u8 vpds[2][AR5416_PD_GAIN_ICEPTS];
1123         u8 pwrs[2][AR5416_PD_GAIN_ICEPTS];
1124         int chain, idx, i;
1125         u32 phy_data = 0;
1126         u8 f, tmp;
1127
1128         switch (channel->band) {
1129         case IEEE80211_BAND_2GHZ:
1130                 f = channel->center_freq - 2300;
1131                 cal_freq_pier = ar->eeprom.cal_freq_pier_2G;
1132                 i = AR5416_NUM_2G_CAL_PIERS - 1;
1133                 break;
1134
1135         case IEEE80211_BAND_5GHZ:
1136                 f = (channel->center_freq - 4800) / 5;
1137                 cal_freq_pier = ar->eeprom.cal_freq_pier_5G;
1138                 i = AR5416_NUM_5G_CAL_PIERS - 1;
1139                 break;
1140
1141         default:
1142                 return -EINVAL;
1143                 break;
1144         }
1145
1146         for (; i >= 0; i--) {
1147                 if (cal_freq_pier[i] != 0xff)
1148                         break;
1149         }
1150         if (i < 0)
1151                 return -EINVAL;
1152
1153         idx = carl9170_find_freq_idx(i, cal_freq_pier, f);
1154
1155         carl9170_regwrite_begin(ar);
1156
1157         for (chain = 0; chain < AR5416_MAX_CHAINS; chain++) {
1158                 for (i = 0; i < AR5416_PD_GAIN_ICEPTS; i++) {
1159                         struct ar9170_calibration_data_per_freq *cal_pier_data;
1160                         int j;
1161
1162                         switch (channel->band) {
1163                         case IEEE80211_BAND_2GHZ:
1164                                 cal_pier_data = &ar->eeprom.
1165                                         cal_pier_data_2G[chain][idx];
1166                                 break;
1167
1168                         case IEEE80211_BAND_5GHZ:
1169                                 cal_pier_data = &ar->eeprom.
1170                                         cal_pier_data_5G[chain][idx];
1171                                 break;
1172
1173                         default:
1174                                 return -EINVAL;
1175                         }
1176
1177                         for (j = 0; j < 2; j++) {
1178                                 vpds[j][i] = carl9170_interpolate_u8(f,
1179                                         cal_freq_pier[idx],
1180                                         cal_pier_data->vpd_pdg[j][i],
1181                                         cal_freq_pier[idx + 1],
1182                                         cal_pier_data[1].vpd_pdg[j][i]);
1183
1184                                 pwrs[j][i] = carl9170_interpolate_u8(f,
1185                                         cal_freq_pier[idx],
1186                                         cal_pier_data->pwr_pdg[j][i],
1187                                         cal_freq_pier[idx + 1],
1188                                         cal_pier_data[1].pwr_pdg[j][i]) / 2;
1189                         }
1190                 }
1191
1192                 for (i = 0; i < 76; i++) {
1193                         if (i < 25) {
1194                                 tmp = carl9170_interpolate_val(i, &pwrs[0][0],
1195                                                                &vpds[0][0]);
1196                         } else {
1197                                 tmp = carl9170_interpolate_val(i - 12,
1198                                                                &pwrs[1][0],
1199                                                                &vpds[1][0]);
1200                         }
1201
1202                         phy_data |= tmp << ((i & 3) << 3);
1203                         if ((i & 3) == 3) {
1204                                 carl9170_regwrite(0x1c6280 + chain * 0x1000 +
1205                                                   (i & ~3), phy_data);
1206                                 phy_data = 0;
1207                         }
1208                 }
1209
1210                 for (i = 19; i < 32; i++)
1211                         carl9170_regwrite(0x1c6280 + chain * 0x1000 + (i << 2),
1212                                           0x0);
1213         }
1214
1215         carl9170_regwrite_finish();
1216         return carl9170_regwrite_result();
1217 }
1218
1219 static u8 carl9170_get_max_edge_power(struct ar9170 *ar,
1220         u32 freq, struct ar9170_calctl_edges edges[])
1221 {
1222         int i;
1223         u8 rc = AR5416_MAX_RATE_POWER;
1224         u8 f;
1225         if (freq < 3000)
1226                 f = freq - 2300;
1227         else
1228                 f = (freq - 4800) / 5;
1229
1230         for (i = 0; i < AR5416_NUM_BAND_EDGES; i++) {
1231                 if (edges[i].channel == 0xff)
1232                         break;
1233                 if (f == edges[i].channel) {
1234                         /* exact freq match */
1235                         rc = edges[i].power_flags & ~AR9170_CALCTL_EDGE_FLAGS;
1236                         break;
1237                 }
1238                 if (i > 0 && f < edges[i].channel) {
1239                         if (f > edges[i - 1].channel &&
1240                             edges[i - 1].power_flags &
1241                             AR9170_CALCTL_EDGE_FLAGS) {
1242                                 /* lower channel has the inband flag set */
1243                                 rc = edges[i - 1].power_flags &
1244                                         ~AR9170_CALCTL_EDGE_FLAGS;
1245                         }
1246                         break;
1247                 }
1248         }
1249
1250         if (i == AR5416_NUM_BAND_EDGES) {
1251                 if (f > edges[i - 1].channel &&
1252                     edges[i - 1].power_flags & AR9170_CALCTL_EDGE_FLAGS) {
1253                         /* lower channel has the inband flag set */
1254                         rc = edges[i - 1].power_flags &
1255                                 ~AR9170_CALCTL_EDGE_FLAGS;
1256                 }
1257         }
1258         return rc;
1259 }
1260
1261 static u8 carl9170_get_heavy_clip(struct ar9170 *ar, u32 freq,
1262         enum carl9170_bw bw, struct ar9170_calctl_edges edges[])
1263 {
1264         u8 f;
1265         int i;
1266         u8 rc = 0;
1267
1268         if (freq < 3000)
1269                 f = freq - 2300;
1270         else
1271                 f = (freq - 4800) / 5;
1272
1273         if (bw == CARL9170_BW_40_BELOW || bw == CARL9170_BW_40_ABOVE)
1274                 rc |= 0xf0;
1275
1276         for (i = 0; i < AR5416_NUM_BAND_EDGES; i++) {
1277                 if (edges[i].channel == 0xff)
1278                         break;
1279                 if (f == edges[i].channel) {
1280                         if (!(edges[i].power_flags & AR9170_CALCTL_EDGE_FLAGS))
1281                                 rc |= 0x0f;
1282                         break;
1283                 }
1284         }
1285
1286         return rc;
1287 }
1288
1289 /*
1290  * calculate the conformance test limits and the heavy clip parameter
1291  * and apply them to ar->power* (derived from otus hal/hpmain.c, line 3706)
1292  */
1293 static void carl9170_calc_ctl(struct ar9170 *ar, u32 freq, enum carl9170_bw bw)
1294 {
1295         u8 ctl_grp; /* CTL group */
1296         u8 ctl_idx; /* CTL index */
1297         int i, j;
1298         struct ctl_modes {
1299                 u8 ctl_mode;
1300                 u8 max_power;
1301                 u8 *pwr_cal_data;
1302                 int pwr_cal_len;
1303         } *modes;
1304
1305         /*
1306          * order is relevant in the mode_list_*: we fall back to the
1307          * lower indices if any mode is missed in the EEPROM.
1308          */
1309         struct ctl_modes mode_list_2ghz[] = {
1310                 { CTL_11B, 0, ar->power_2G_cck, 4 },
1311                 { CTL_11G, 0, ar->power_2G_ofdm, 4 },
1312                 { CTL_2GHT20, 0, ar->power_2G_ht20, 8 },
1313                 { CTL_2GHT40, 0, ar->power_2G_ht40, 8 },
1314         };
1315         struct ctl_modes mode_list_5ghz[] = {
1316                 { CTL_11A, 0, ar->power_5G_leg, 4 },
1317                 { CTL_5GHT20, 0, ar->power_5G_ht20, 8 },
1318                 { CTL_5GHT40, 0, ar->power_5G_ht40, 8 },
1319         };
1320         int nr_modes;
1321
1322 #define EDGES(c, n) (ar->eeprom.ctl_data[c].control_edges[n])
1323
1324         ar->heavy_clip = 0;
1325
1326         /*
1327          * TODO: investigate the differences between OTUS'
1328          * hpreg.c::zfHpGetRegulatoryDomain() and
1329          * ath/regd.c::ath_regd_get_band_ctl() -
1330          * e.g. for FCC3_WORLD the OTUS procedure
1331          * always returns CTL_FCC, while the one in ath/ delivers
1332          * CTL_ETSI for 2GHz and CTL_FCC for 5GHz.
1333          */
1334         ctl_grp = ath_regd_get_band_ctl(&ar->common.regulatory,
1335                                         ar->hw->conf.channel->band);
1336
1337         /* ctl group not found - either invalid band (NO_CTL) or ww roaming */
1338         if (ctl_grp == NO_CTL || ctl_grp == SD_NO_CTL)
1339                 ctl_grp = CTL_FCC;
1340
1341         if (ctl_grp != CTL_FCC)
1342                 /* skip CTL and heavy clip for CTL_MKK and CTL_ETSI */
1343                 return;
1344
1345         if (ar->hw->conf.channel->band == IEEE80211_BAND_2GHZ) {
1346                 modes = mode_list_2ghz;
1347                 nr_modes = ARRAY_SIZE(mode_list_2ghz);
1348         } else {
1349                 modes = mode_list_5ghz;
1350                 nr_modes = ARRAY_SIZE(mode_list_5ghz);
1351         }
1352
1353         for (i = 0; i < nr_modes; i++) {
1354                 u8 c = ctl_grp | modes[i].ctl_mode;
1355                 for (ctl_idx = 0; ctl_idx < AR5416_NUM_CTLS; ctl_idx++)
1356                         if (c == ar->eeprom.ctl_index[ctl_idx])
1357                                 break;
1358                 if (ctl_idx < AR5416_NUM_CTLS) {
1359                         int f_off = 0;
1360
1361                         /*
1362                          * determine heavy clip parameter
1363                          * from the 11G edges array
1364                          */
1365                         if (modes[i].ctl_mode == CTL_11G) {
1366                                 ar->heavy_clip =
1367                                         carl9170_get_heavy_clip(ar,
1368                                                 freq, bw, EDGES(ctl_idx, 1));
1369                         }
1370
1371                         /* adjust freq for 40MHz */
1372                         if (modes[i].ctl_mode == CTL_2GHT40 ||
1373                             modes[i].ctl_mode == CTL_5GHT40) {
1374                                 if (bw == CARL9170_BW_40_BELOW)
1375                                         f_off = -10;
1376                                 else
1377                                         f_off = 10;
1378                         }
1379
1380                         modes[i].max_power =
1381                                 carl9170_get_max_edge_power(ar,
1382                                         freq+f_off, EDGES(ctl_idx, 1));
1383
1384                         /*
1385                          * TODO: check if the regulatory max. power is
1386                          * controlled by cfg80211 for DFS.
1387                          * (hpmain applies it to max_power itself for DFS freq)
1388                          */
1389
1390                 } else {
1391                         /*
1392                          * Workaround in otus driver, hpmain.c, line 3906:
1393                          * if no data for 5GHT20 are found, take the
1394                          * legacy 5G value. We extend this here to fallback
1395                          * from any other HT* or 11G, too.
1396                          */
1397                         int k = i;
1398
1399                         modes[i].max_power = AR5416_MAX_RATE_POWER;
1400                         while (k-- > 0) {
1401                                 if (modes[k].max_power !=
1402                                     AR5416_MAX_RATE_POWER) {
1403                                         modes[i].max_power = modes[k].max_power;
1404                                         break;
1405                                 }
1406                         }
1407                 }
1408
1409                 /* apply max power to pwr_cal_data (ar->power_*) */
1410                 for (j = 0; j < modes[i].pwr_cal_len; j++) {
1411                         modes[i].pwr_cal_data[j] = min(modes[i].pwr_cal_data[j],
1412                                                        modes[i].max_power);
1413                 }
1414         }
1415
1416         if (ar->heavy_clip & 0xf0) {
1417                 ar->power_2G_ht40[0]--;
1418                 ar->power_2G_ht40[1]--;
1419                 ar->power_2G_ht40[2]--;
1420         }
1421         if (ar->heavy_clip & 0xf) {
1422                 ar->power_2G_ht20[0]++;
1423                 ar->power_2G_ht20[1]++;
1424                 ar->power_2G_ht20[2]++;
1425         }
1426
1427 #undef EDGES
1428 }
1429
1430 static int carl9170_set_power_cal(struct ar9170 *ar, u32 freq,
1431                                   enum carl9170_bw bw)
1432 {
1433         struct ar9170_calibration_target_power_legacy *ctpl;
1434         struct ar9170_calibration_target_power_ht *ctph;
1435         u8 *ctpres;
1436         int ntargets;
1437         int idx, i, n;
1438         u8 ackpower, ackchains, f;
1439         u8 pwr_freqs[AR5416_MAX_NUM_TGT_PWRS];
1440
1441         if (freq < 3000)
1442                 f = freq - 2300;
1443         else
1444                 f = (freq - 4800)/5;
1445
1446         /*
1447          * cycle through the various modes
1448          *
1449          * legacy modes first: 5G, 2G CCK, 2G OFDM
1450          */
1451         for (i = 0; i < 3; i++) {
1452                 switch (i) {
1453                 case 0: /* 5 GHz legacy */
1454                         ctpl = &ar->eeprom.cal_tgt_pwr_5G[0];
1455                         ntargets = AR5416_NUM_5G_TARGET_PWRS;
1456                         ctpres = ar->power_5G_leg;
1457                         break;
1458                 case 1: /* 2.4 GHz CCK */
1459                         ctpl = &ar->eeprom.cal_tgt_pwr_2G_cck[0];
1460                         ntargets = AR5416_NUM_2G_CCK_TARGET_PWRS;
1461                         ctpres = ar->power_2G_cck;
1462                         break;
1463                 case 2: /* 2.4 GHz OFDM */
1464                         ctpl = &ar->eeprom.cal_tgt_pwr_2G_ofdm[0];
1465                         ntargets = AR5416_NUM_2G_OFDM_TARGET_PWRS;
1466                         ctpres = ar->power_2G_ofdm;
1467                         break;
1468                 default:
1469                         BUG();
1470                 }
1471
1472                 for (n = 0; n < ntargets; n++) {
1473                         if (ctpl[n].freq == 0xff)
1474                                 break;
1475                         pwr_freqs[n] = ctpl[n].freq;
1476                 }
1477                 ntargets = n;
1478                 idx = carl9170_find_freq_idx(ntargets, pwr_freqs, f);
1479                 for (n = 0; n < 4; n++)
1480                         ctpres[n] = carl9170_interpolate_u8(f,
1481                                 ctpl[idx + 0].freq, ctpl[idx + 0].power[n],
1482                                 ctpl[idx + 1].freq, ctpl[idx + 1].power[n]);
1483         }
1484
1485         /* HT modes now: 5G HT20, 5G HT40, 2G CCK, 2G OFDM, 2G HT20, 2G HT40 */
1486         for (i = 0; i < 4; i++) {
1487                 switch (i) {
1488                 case 0: /* 5 GHz HT 20 */
1489                         ctph = &ar->eeprom.cal_tgt_pwr_5G_ht20[0];
1490                         ntargets = AR5416_NUM_5G_TARGET_PWRS;
1491                         ctpres = ar->power_5G_ht20;
1492                         break;
1493                 case 1: /* 5 GHz HT 40 */
1494                         ctph = &ar->eeprom.cal_tgt_pwr_5G_ht40[0];
1495                         ntargets = AR5416_NUM_5G_TARGET_PWRS;
1496                         ctpres = ar->power_5G_ht40;
1497                         break;
1498                 case 2: /* 2.4 GHz HT 20 */
1499                         ctph = &ar->eeprom.cal_tgt_pwr_2G_ht20[0];
1500                         ntargets = AR5416_NUM_2G_OFDM_TARGET_PWRS;
1501                         ctpres = ar->power_2G_ht20;
1502                         break;
1503                 case 3: /* 2.4 GHz HT 40 */
1504                         ctph = &ar->eeprom.cal_tgt_pwr_2G_ht40[0];
1505                         ntargets = AR5416_NUM_2G_OFDM_TARGET_PWRS;
1506                         ctpres = ar->power_2G_ht40;
1507                         break;
1508                 default:
1509                         BUG();
1510                 }
1511
1512                 for (n = 0; n < ntargets; n++) {
1513                         if (ctph[n].freq == 0xff)
1514                                 break;
1515                         pwr_freqs[n] = ctph[n].freq;
1516                 }
1517                 ntargets = n;
1518                 idx = carl9170_find_freq_idx(ntargets, pwr_freqs, f);
1519                 for (n = 0; n < 8; n++)
1520                         ctpres[n] = carl9170_interpolate_u8(f,
1521                                 ctph[idx + 0].freq, ctph[idx + 0].power[n],
1522                                 ctph[idx + 1].freq, ctph[idx + 1].power[n]);
1523         }
1524
1525         /* calc. conformance test limits and apply to ar->power*[] */
1526         carl9170_calc_ctl(ar, freq, bw);
1527
1528         /* set ACK/CTS TX power */
1529         carl9170_regwrite_begin(ar);
1530
1531         if (ar->eeprom.tx_mask != 1)
1532                 ackchains = AR9170_TX_PHY_TXCHAIN_2;
1533         else
1534                 ackchains = AR9170_TX_PHY_TXCHAIN_1;
1535
1536         if (freq < 3000)
1537                 ackpower = ar->power_2G_ofdm[0] & 0x3f;
1538         else
1539                 ackpower = ar->power_5G_leg[0] & 0x3f;
1540
1541         carl9170_regwrite(AR9170_MAC_REG_ACK_TPC,
1542                           0x3c1e | ackpower << 20 | ackchains << 26);
1543         carl9170_regwrite(AR9170_MAC_REG_RTS_CTS_TPC,
1544                           ackpower << 5 | ackchains << 11 |
1545                           ackpower << 21 | ackchains << 27);
1546
1547         carl9170_regwrite(AR9170_MAC_REG_CFEND_QOSNULL_TPC,
1548                           ackpower << 5 | ackchains << 11 |
1549                           ackpower << 21 | ackchains << 27);
1550
1551         carl9170_regwrite_finish();
1552         return carl9170_regwrite_result();
1553 }
1554
1555 int carl9170_get_noisefloor(struct ar9170 *ar)
1556 {
1557         static const u32 phy_regs[] = {
1558                 AR9170_PHY_REG_CCA, AR9170_PHY_REG_CH2_CCA,
1559                 AR9170_PHY_REG_EXT_CCA, AR9170_PHY_REG_CH2_EXT_CCA };
1560         u32 phy_res[ARRAY_SIZE(phy_regs)];
1561         int err, i;
1562
1563         BUILD_BUG_ON(ARRAY_SIZE(phy_regs) != ARRAY_SIZE(ar->noise));
1564
1565         err = carl9170_read_mreg(ar, ARRAY_SIZE(phy_regs), phy_regs, phy_res);
1566         if (err)
1567                 return err;
1568
1569         for (i = 0; i < 2; i++) {
1570                 ar->noise[i] = sign_extend32(GET_VAL(
1571                         AR9170_PHY_CCA_MIN_PWR, phy_res[i]), 8);
1572
1573                 ar->noise[i + 2] = sign_extend32(GET_VAL(
1574                         AR9170_PHY_EXT_CCA_MIN_PWR, phy_res[i + 2]), 8);
1575         }
1576
1577         return 0;
1578 }
1579
1580 static enum carl9170_bw nl80211_to_carl(enum nl80211_channel_type type)
1581 {
1582         switch (type) {
1583         case NL80211_CHAN_NO_HT:
1584         case NL80211_CHAN_HT20:
1585                 return CARL9170_BW_20;
1586         case NL80211_CHAN_HT40MINUS:
1587                 return CARL9170_BW_40_BELOW;
1588         case NL80211_CHAN_HT40PLUS:
1589                 return CARL9170_BW_40_ABOVE;
1590         default:
1591                 BUG();
1592         }
1593 }
1594
1595 int carl9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel,
1596                          enum nl80211_channel_type _bw,
1597                          enum carl9170_rf_init_mode rfi)
1598 {
1599         const struct carl9170_phy_freq_params *freqpar;
1600         struct carl9170_rf_init_result rf_res;
1601         struct carl9170_rf_init rf;
1602         u32 cmd, tmp, offs = 0, new_ht = 0;
1603         int err;
1604         enum carl9170_bw bw;
1605         bool warm_reset;
1606         struct ieee80211_channel *old_channel = NULL;
1607
1608         bw = nl80211_to_carl(_bw);
1609
1610         if (conf_is_ht(&ar->hw->conf))
1611                 new_ht |= CARL9170FW_PHY_HT_ENABLE;
1612
1613         if (conf_is_ht40(&ar->hw->conf))
1614                 new_ht |= CARL9170FW_PHY_HT_DYN2040;
1615
1616         /* may be NULL at first setup */
1617         if (ar->channel) {
1618                 old_channel = ar->channel;
1619                 warm_reset = (old_channel->band != channel->band) ||
1620                              (old_channel->center_freq ==
1621                               channel->center_freq) ||
1622                              (ar->ht_settings != new_ht);
1623
1624                 ar->channel = NULL;
1625         } else {
1626                 warm_reset = true;
1627         }
1628
1629         /* HW workaround */
1630         if (!ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] &&
1631             channel->center_freq <= 2417)
1632                 warm_reset = true;
1633
1634         if (rfi != CARL9170_RFI_NONE || warm_reset) {
1635                 u32 val;
1636
1637                 if (rfi == CARL9170_RFI_COLD)
1638                         val = AR9170_PWR_RESET_BB_COLD_RESET;
1639                 else
1640                         val = AR9170_PWR_RESET_BB_WARM_RESET;
1641
1642                 /* warm/cold reset BB/ADDA */
1643                 err = carl9170_write_reg(ar, AR9170_PWR_REG_RESET, val);
1644                 if (err)
1645                         return err;
1646
1647                 err = carl9170_write_reg(ar, AR9170_PWR_REG_RESET, 0x0);
1648                 if (err)
1649                         return err;
1650
1651                 err = carl9170_init_phy(ar, channel->band);
1652                 if (err)
1653                         return err;
1654
1655                 err = carl9170_init_rf_banks_0_7(ar,
1656                         channel->band == IEEE80211_BAND_5GHZ);
1657                 if (err)
1658                         return err;
1659
1660                 cmd = CARL9170_CMD_RF_INIT;
1661         } else {
1662                 cmd = CARL9170_CMD_FREQUENCY;
1663         }
1664
1665         err = carl9170_exec_cmd(ar, CARL9170_CMD_FREQ_START, 0, NULL, 0, NULL);
1666         if (err)
1667                 return err;
1668
1669         err = carl9170_write_reg(ar, AR9170_PHY_REG_HEAVY_CLIP_ENABLE,
1670                                  0x200);
1671         if (err)
1672                 return err;
1673
1674         err = carl9170_init_rf_bank4_pwr(ar,
1675                 channel->band == IEEE80211_BAND_5GHZ,
1676                 channel->center_freq, bw);
1677         if (err)
1678                 return err;
1679
1680         tmp = AR9170_PHY_TURBO_FC_SINGLE_HT_LTF1 |
1681               AR9170_PHY_TURBO_FC_HT_EN;
1682
1683         switch (bw) {
1684         case CARL9170_BW_20:
1685                 break;
1686         case CARL9170_BW_40_BELOW:
1687                 tmp |= AR9170_PHY_TURBO_FC_DYN2040_EN |
1688                        AR9170_PHY_TURBO_FC_SHORT_GI_40;
1689                 offs = 3;
1690                 break;
1691         case CARL9170_BW_40_ABOVE:
1692                 tmp |= AR9170_PHY_TURBO_FC_DYN2040_EN |
1693                        AR9170_PHY_TURBO_FC_SHORT_GI_40 |
1694                        AR9170_PHY_TURBO_FC_DYN2040_PRI_CH;
1695                 offs = 1;
1696                 break;
1697         default:
1698                 BUG();
1699                 return -ENOSYS;
1700         }
1701
1702         if (ar->eeprom.tx_mask != 1)
1703                 tmp |= AR9170_PHY_TURBO_FC_WALSH;
1704
1705         err = carl9170_write_reg(ar, AR9170_PHY_REG_TURBO, tmp);
1706         if (err)
1707                 return err;
1708
1709         err = carl9170_set_freq_cal_data(ar, channel);
1710         if (err)
1711                 return err;
1712
1713         err = carl9170_set_power_cal(ar, channel->center_freq, bw);
1714         if (err)
1715                 return err;
1716
1717         freqpar = carl9170_get_hw_dyn_params(channel, bw);
1718
1719         rf.ht_settings = new_ht;
1720         if (conf_is_ht40(&ar->hw->conf))
1721                 SET_VAL(CARL9170FW_PHY_HT_EXT_CHAN_OFF, rf.ht_settings, offs);
1722
1723         rf.freq = cpu_to_le32(channel->center_freq * 1000);
1724         rf.delta_slope_coeff_exp = cpu_to_le32(freqpar->coeff_exp);
1725         rf.delta_slope_coeff_man = cpu_to_le32(freqpar->coeff_man);
1726         rf.delta_slope_coeff_exp_shgi = cpu_to_le32(freqpar->coeff_exp_shgi);
1727         rf.delta_slope_coeff_man_shgi = cpu_to_le32(freqpar->coeff_man_shgi);
1728
1729         if (rfi != CARL9170_RFI_NONE)
1730                 rf.finiteLoopCount = cpu_to_le32(2000);
1731         else
1732                 rf.finiteLoopCount = cpu_to_le32(1000);
1733
1734         err = carl9170_exec_cmd(ar, cmd, sizeof(rf), &rf,
1735                                 sizeof(rf_res), &rf_res);
1736         if (err)
1737                 return err;
1738
1739         err = le32_to_cpu(rf_res.ret);
1740         if (err != 0) {
1741                 ar->chan_fail++;
1742                 ar->total_chan_fail++;
1743
1744                 wiphy_err(ar->hw->wiphy, "channel change: %d -> %d "
1745                           "failed (%d).\n", old_channel ?
1746                           old_channel->center_freq : -1, channel->center_freq,
1747                           err);
1748
1749                 if ((rfi == CARL9170_RFI_COLD) || (ar->chan_fail > 3)) {
1750                         /*
1751                          * We have tried very hard to change to _another_
1752                          * channel and we've failed to do so!
1753                          * Chances are that the PHY/RF is no longer
1754                          * operable (due to corruptions/fatal events/bugs?)
1755                          * and we need to reset at a higher level.
1756                          */
1757                         carl9170_restart(ar, CARL9170_RR_TOO_MANY_PHY_ERRORS);
1758                         return 0;
1759                 }
1760
1761                 err = carl9170_set_channel(ar, channel, _bw,
1762                                            CARL9170_RFI_COLD);
1763                 if (err)
1764                         return err;
1765         } else {
1766                 ar->chan_fail = 0;
1767         }
1768
1769         err = carl9170_get_noisefloor(ar);
1770         if (err)
1771                 return err;
1772
1773         if (ar->heavy_clip) {
1774                 err = carl9170_write_reg(ar, AR9170_PHY_REG_HEAVY_CLIP_ENABLE,
1775                                          0x200 | ar->heavy_clip);
1776                 if (err) {
1777                         if (net_ratelimit()) {
1778                                 wiphy_err(ar->hw->wiphy, "failed to set "
1779                                        "heavy clip\n");
1780                         }
1781
1782                         return err;
1783                 }
1784         }
1785
1786         ar->channel = channel;
1787         ar->ht_settings = new_ht;
1788         return 0;
1789 }