linux/drivers/net/wireless/ath/carl9170/phy.c
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   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
  44static 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
  63struct carl9170_phy_init {
  64        u32 reg, _5ghz_20, _5ghz_40, _2ghz_40, _2ghz_20;
  65};
  66
  67static 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 */
 406static 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 bandwith
 431 */
 432static 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
 543static 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
 590struct carl9170_rf_initvals {
 591        u32 reg, _5ghz, _2ghz;
 592};
 593
 594static 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
 673static 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
 692struct carl9170_phy_freq_params {
 693        u8 coeff_exp;
 694        u16 coeff_man;
 695        u8 coeff_exp_shgi;
 696        u16 coeff_man_shgi;
 697};
 698
 699enum carl9170_bw {
 700        CARL9170_BW_20,
 701        CARL9170_BW_40_BELOW,
 702        CARL9170_BW_40_ABOVE,
 703
 704        __CARL9170_NUM_BW,
 705};
 706
 707struct 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! */
 713static 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
 967static 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
1035static const struct carl9170_phy_freq_params *
1036carl9170_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
1056static 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
1069static 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
1088static 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
1105static 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
1118static 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
1219static 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
1261static 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 */
1293static 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
1430static 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
1555int 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
1580static 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
1595int 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        /* FIXME: PSM does not work in 5GHz Band */
1787        if (channel->band == IEEE80211_BAND_5GHZ)
1788                ar->ps.off_override |= PS_OFF_5GHZ;
1789        else
1790                ar->ps.off_override &= ~PS_OFF_5GHZ;
1791
1792        ar->channel = channel;
1793        ar->ht_settings = new_ht;
1794        return 0;
1795}
1796