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rtl8xxxu_8188e.c
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rtl8xxxu_8188e.c
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// SPDX-License-Identifier: GPL-2.0-only
/*
* RTL8XXXU mac80211 USB driver - 8188e specific subdriver
*
* Copyright (c) 2014 - 2016 Jes Sorensen <[email protected]>
*
* Portions, notably calibration code:
* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
*
* This driver was written as a replacement for the vendor provided
* rtl8723au driver. As the Realtek 8xxx chips are very similar in
* their programming interface, I have started adding support for
* additional 8xxx chips like the 8192cu, 8188cus, etc.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/usb.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/wireless.h>
#include <linux/firmware.h>
#include <linux/moduleparam.h>
#include <net/mac80211.h>
#include "rtl8xxxu.h"
#include "rtl8xxxu_regs.h"
static const struct rtl8xxxu_reg8val rtl8188e_mac_init_table[] = {
{0x026, 0x41}, {0x027, 0x35}, {0x040, 0x00}, {0x421, 0x0f},
{0x428, 0x0a}, {0x429, 0x10}, {0x430, 0x00}, {0x431, 0x01},
{0x432, 0x02}, {0x433, 0x04}, {0x434, 0x05}, {0x435, 0x06},
{0x436, 0x07}, {0x437, 0x08}, {0x438, 0x00}, {0x439, 0x00},
{0x43a, 0x01}, {0x43b, 0x02}, {0x43c, 0x04}, {0x43d, 0x05},
{0x43e, 0x06}, {0x43f, 0x07}, {0x440, 0x5d}, {0x441, 0x01},
{0x442, 0x00}, {0x444, 0x15}, {0x445, 0xf0}, {0x446, 0x0f},
{0x447, 0x00}, {0x458, 0x41}, {0x459, 0xa8}, {0x45a, 0x72},
{0x45b, 0xb9}, {0x460, 0x66}, {0x461, 0x66}, {0x480, 0x08},
{0x4c8, 0xff}, {0x4c9, 0x08}, {0x4cc, 0xff}, {0x4cd, 0xff},
{0x4ce, 0x01}, {0x4d3, 0x01}, {0x500, 0x26}, {0x501, 0xa2},
{0x502, 0x2f}, {0x503, 0x00}, {0x504, 0x28}, {0x505, 0xa3},
{0x506, 0x5e}, {0x507, 0x00}, {0x508, 0x2b}, {0x509, 0xa4},
{0x50a, 0x5e}, {0x50b, 0x00}, {0x50c, 0x4f}, {0x50d, 0xa4},
{0x50e, 0x00}, {0x50f, 0x00}, {0x512, 0x1c}, {0x514, 0x0a},
{0x516, 0x0a}, {0x525, 0x4f}, {0x550, 0x10}, {0x551, 0x10},
{0x559, 0x02}, {0x55d, 0xff}, {0x605, 0x30}, {0x608, 0x0e},
{0x609, 0x2a}, {0x620, 0xff}, {0x621, 0xff}, {0x622, 0xff},
{0x623, 0xff}, {0x624, 0xff}, {0x625, 0xff}, {0x626, 0xff},
{0x627, 0xff}, {0x63c, 0x08}, {0x63d, 0x08}, {0x63e, 0x0c},
{0x63f, 0x0c}, {0x640, 0x40}, {0x652, 0x20}, {0x66e, 0x05},
{0x700, 0x21}, {0x701, 0x43}, {0x702, 0x65}, {0x703, 0x87},
{0x708, 0x21}, {0x709, 0x43}, {0x70a, 0x65}, {0x70b, 0x87},
{0xffff, 0xff},
};
static const struct rtl8xxxu_reg32val rtl8188eu_phy_init_table[] = {
{0x800, 0x80040000}, {0x804, 0x00000003},
{0x808, 0x0000fc00}, {0x80c, 0x0000000a},
{0x810, 0x10001331}, {0x814, 0x020c3d10},
{0x818, 0x02200385}, {0x81c, 0x00000000},
{0x820, 0x01000100}, {0x824, 0x00390204},
{0x828, 0x00000000}, {0x82c, 0x00000000},
{0x830, 0x00000000}, {0x834, 0x00000000},
{0x838, 0x00000000}, {0x83c, 0x00000000},
{0x840, 0x00010000}, {0x844, 0x00000000},
{0x848, 0x00000000}, {0x84c, 0x00000000},
{0x850, 0x00000000}, {0x854, 0x00000000},
{0x858, 0x569a11a9}, {0x85c, 0x01000014},
{0x860, 0x66f60110}, {0x864, 0x061f0649},
{0x868, 0x00000000}, {0x86c, 0x27272700},
{0x870, 0x07000760}, {0x874, 0x25004000},
{0x878, 0x00000808}, {0x87c, 0x00000000},
{0x880, 0xb0000c1c}, {0x884, 0x00000001},
{0x888, 0x00000000}, {0x88c, 0xccc000c0},
{0x890, 0x00000800}, {0x894, 0xfffffffe},
{0x898, 0x40302010}, {0x89c, 0x00706050},
{0x900, 0x00000000}, {0x904, 0x00000023},
{0x908, 0x00000000}, {0x90c, 0x81121111},
{0x910, 0x00000002}, {0x914, 0x00000201},
{0xa00, 0x00d047c8}, {0xa04, 0x80ff800c},
{0xa08, 0x8c838300}, {0xa0c, 0x2e7f120f},
{0xa10, 0x9500bb7e}, {0xa14, 0x1114d028},
{0xa18, 0x00881117}, {0xa1c, 0x89140f00},
{0xa20, 0x1a1b0000}, {0xa24, 0x090e1317},
{0xa28, 0x00000204}, {0xa2c, 0x00d30000},
{0xa70, 0x101fbf00}, {0xa74, 0x00000007},
{0xa78, 0x00000900}, {0xa7c, 0x225b0606},
{0xa80, 0x218075b1}, {0xb2c, 0x80000000},
{0xc00, 0x48071d40}, {0xc04, 0x03a05611},
{0xc08, 0x000000e4}, {0xc0c, 0x6c6c6c6c},
{0xc10, 0x08800000}, {0xc14, 0x40000100},
{0xc18, 0x08800000}, {0xc1c, 0x40000100},
{0xc20, 0x00000000}, {0xc24, 0x00000000},
{0xc28, 0x00000000}, {0xc2c, 0x00000000},
{0xc30, 0x69e9ac47}, {0xc34, 0x469652af},
{0xc38, 0x49795994}, {0xc3c, 0x0a97971c},
{0xc40, 0x1f7c403f}, {0xc44, 0x000100b7},
{0xc48, 0xec020107}, {0xc4c, 0x007f037f},
{0xc50, 0x69553420}, {0xc54, 0x43bc0094},
{0xc58, 0x00013169}, {0xc5c, 0x00250492},
{0xc60, 0x00000000}, {0xc64, 0x7112848b},
{0xc68, 0x47c00bff}, {0xc6c, 0x00000036},
{0xc70, 0x2c7f000d}, {0xc74, 0x020610db},
{0xc78, 0x0000001f}, {0xc7c, 0x00b91612},
{0xc80, 0x390000e4}, {0xc84, 0x21f60000},
{0xc88, 0x40000100}, {0xc8c, 0x20200000},
{0xc90, 0x00091521}, {0xc94, 0x00000000},
{0xc98, 0x00121820}, {0xc9c, 0x00007f7f},
{0xca0, 0x00000000}, {0xca4, 0x000300a0},
{0xca8, 0x00000000}, {0xcac, 0x00000000},
{0xcb0, 0x00000000}, {0xcb4, 0x00000000},
{0xcb8, 0x00000000}, {0xcbc, 0x28000000},
{0xcc0, 0x00000000}, {0xcc4, 0x00000000},
{0xcc8, 0x00000000}, {0xccc, 0x00000000},
{0xcd0, 0x00000000}, {0xcd4, 0x00000000},
{0xcd8, 0x64b22427}, {0xcdc, 0x00766932},
{0xce0, 0x00222222}, {0xce4, 0x00000000},
{0xce8, 0x37644302}, {0xcec, 0x2f97d40c},
{0xd00, 0x00000740}, {0xd04, 0x00020401},
{0xd08, 0x0000907f}, {0xd0c, 0x20010201},
{0xd10, 0xa0633333}, {0xd14, 0x3333bc43},
{0xd18, 0x7a8f5b6f}, {0xd2c, 0xcc979975},
{0xd30, 0x00000000}, {0xd34, 0x80608000},
{0xd38, 0x00000000}, {0xd3c, 0x00127353},
{0xd40, 0x00000000}, {0xd44, 0x00000000},
{0xd48, 0x00000000}, {0xd4c, 0x00000000},
{0xd50, 0x6437140a}, {0xd54, 0x00000000},
{0xd58, 0x00000282}, {0xd5c, 0x30032064},
{0xd60, 0x4653de68}, {0xd64, 0x04518a3c},
{0xd68, 0x00002101}, {0xd6c, 0x2a201c16},
{0xd70, 0x1812362e}, {0xd74, 0x322c2220},
{0xd78, 0x000e3c24}, {0xe00, 0x2d2d2d2d},
{0xe04, 0x2d2d2d2d}, {0xe08, 0x0390272d},
{0xe10, 0x2d2d2d2d}, {0xe14, 0x2d2d2d2d},
{0xe18, 0x2d2d2d2d}, {0xe1c, 0x2d2d2d2d},
{0xe28, 0x00000000}, {0xe30, 0x1000dc1f},
{0xe34, 0x10008c1f}, {0xe38, 0x02140102},
{0xe3c, 0x681604c2}, {0xe40, 0x01007c00},
{0xe44, 0x01004800}, {0xe48, 0xfb000000},
{0xe4c, 0x000028d1}, {0xe50, 0x1000dc1f},
{0xe54, 0x10008c1f}, {0xe58, 0x02140102},
{0xe5c, 0x28160d05}, {0xe60, 0x00000048},
{0xe68, 0x001b25a4}, {0xe6c, 0x00c00014},
{0xe70, 0x00c00014}, {0xe74, 0x01000014},
{0xe78, 0x01000014}, {0xe7c, 0x01000014},
{0xe80, 0x01000014}, {0xe84, 0x00c00014},
{0xe88, 0x01000014}, {0xe8c, 0x00c00014},
{0xed0, 0x00c00014}, {0xed4, 0x00c00014},
{0xed8, 0x00c00014}, {0xedc, 0x00000014},
{0xee0, 0x00000014}, {0xee8, 0x21555448},
{0xeec, 0x01c00014}, {0xf14, 0x00000003},
{0xf4c, 0x00000000}, {0xf00, 0x00000300},
{0xffff, 0xffffffff},
};
static const struct rtl8xxxu_reg32val rtl8188e_agc_table[] = {
{0xc78, 0xfb000001}, {0xc78, 0xfb010001},
{0xc78, 0xfb020001}, {0xc78, 0xfb030001},
{0xc78, 0xfb040001}, {0xc78, 0xfb050001},
{0xc78, 0xfa060001}, {0xc78, 0xf9070001},
{0xc78, 0xf8080001}, {0xc78, 0xf7090001},
{0xc78, 0xf60a0001}, {0xc78, 0xf50b0001},
{0xc78, 0xf40c0001}, {0xc78, 0xf30d0001},
{0xc78, 0xf20e0001}, {0xc78, 0xf10f0001},
{0xc78, 0xf0100001}, {0xc78, 0xef110001},
{0xc78, 0xee120001}, {0xc78, 0xed130001},
{0xc78, 0xec140001}, {0xc78, 0xeb150001},
{0xc78, 0xea160001}, {0xc78, 0xe9170001},
{0xc78, 0xe8180001}, {0xc78, 0xe7190001},
{0xc78, 0xe61a0001}, {0xc78, 0xe51b0001},
{0xc78, 0xe41c0001}, {0xc78, 0xe31d0001},
{0xc78, 0xe21e0001}, {0xc78, 0xe11f0001},
{0xc78, 0x8a200001}, {0xc78, 0x89210001},
{0xc78, 0x88220001}, {0xc78, 0x87230001},
{0xc78, 0x86240001}, {0xc78, 0x85250001},
{0xc78, 0x84260001}, {0xc78, 0x83270001},
{0xc78, 0x82280001}, {0xc78, 0x6b290001},
{0xc78, 0x6a2a0001}, {0xc78, 0x692b0001},
{0xc78, 0x682c0001}, {0xc78, 0x672d0001},
{0xc78, 0x662e0001}, {0xc78, 0x652f0001},
{0xc78, 0x64300001}, {0xc78, 0x63310001},
{0xc78, 0x62320001}, {0xc78, 0x61330001},
{0xc78, 0x46340001}, {0xc78, 0x45350001},
{0xc78, 0x44360001}, {0xc78, 0x43370001},
{0xc78, 0x42380001}, {0xc78, 0x41390001},
{0xc78, 0x403a0001}, {0xc78, 0x403b0001},
{0xc78, 0x403c0001}, {0xc78, 0x403d0001},
{0xc78, 0x403e0001}, {0xc78, 0x403f0001},
{0xc78, 0xfb400001}, {0xc78, 0xfb410001},
{0xc78, 0xfb420001}, {0xc78, 0xfb430001},
{0xc78, 0xfb440001}, {0xc78, 0xfb450001},
{0xc78, 0xfb460001}, {0xc78, 0xfb470001},
{0xc78, 0xfb480001}, {0xc78, 0xfa490001},
{0xc78, 0xf94a0001}, {0xc78, 0xf84b0001},
{0xc78, 0xf74c0001}, {0xc78, 0xf64d0001},
{0xc78, 0xf54e0001}, {0xc78, 0xf44f0001},
{0xc78, 0xf3500001}, {0xc78, 0xf2510001},
{0xc78, 0xf1520001}, {0xc78, 0xf0530001},
{0xc78, 0xef540001}, {0xc78, 0xee550001},
{0xc78, 0xed560001}, {0xc78, 0xec570001},
{0xc78, 0xeb580001}, {0xc78, 0xea590001},
{0xc78, 0xe95a0001}, {0xc78, 0xe85b0001},
{0xc78, 0xe75c0001}, {0xc78, 0xe65d0001},
{0xc78, 0xe55e0001}, {0xc78, 0xe45f0001},
{0xc78, 0xe3600001}, {0xc78, 0xe2610001},
{0xc78, 0xc3620001}, {0xc78, 0xc2630001},
{0xc78, 0xc1640001}, {0xc78, 0x8b650001},
{0xc78, 0x8a660001}, {0xc78, 0x89670001},
{0xc78, 0x88680001}, {0xc78, 0x87690001},
{0xc78, 0x866a0001}, {0xc78, 0x856b0001},
{0xc78, 0x846c0001}, {0xc78, 0x676d0001},
{0xc78, 0x666e0001}, {0xc78, 0x656f0001},
{0xc78, 0x64700001}, {0xc78, 0x63710001},
{0xc78, 0x62720001}, {0xc78, 0x61730001},
{0xc78, 0x60740001}, {0xc78, 0x46750001},
{0xc78, 0x45760001}, {0xc78, 0x44770001},
{0xc78, 0x43780001}, {0xc78, 0x42790001},
{0xc78, 0x417a0001}, {0xc78, 0x407b0001},
{0xc78, 0x407c0001}, {0xc78, 0x407d0001},
{0xc78, 0x407e0001}, {0xc78, 0x407f0001},
{0xc50, 0x69553422}, {0xc50, 0x69553420},
{0xffff, 0xffffffff}
};
static const struct rtl8xxxu_rfregval rtl8188eu_radioa_init_table[] = {
{0x00, 0x00030000}, {0x08, 0x00084000},
{0x18, 0x00000407}, {0x19, 0x00000012},
{0x1e, 0x00080009}, {0x1f, 0x00000880},
{0x2f, 0x0001a060}, {0x3f, 0x00000000},
{0x42, 0x000060c0}, {0x57, 0x000d0000},
{0x58, 0x000be180}, {0x67, 0x00001552},
{0x83, 0x00000000}, {0xb0, 0x000ff8fc},
{0xb1, 0x00054400}, {0xb2, 0x000ccc19},
{0xb4, 0x00043003}, {0xb6, 0x0004953e},
{0xb7, 0x0001c718}, {0xb8, 0x000060ff},
{0xb9, 0x00080001}, {0xba, 0x00040000},
{0xbb, 0x00000400}, {0xbf, 0x000c0000},
{0xc2, 0x00002400}, {0xc3, 0x00000009},
{0xc4, 0x00040c91}, {0xc5, 0x00099999},
{0xc6, 0x000000a3}, {0xc7, 0x00088820},
{0xc8, 0x00076c06}, {0xc9, 0x00000000},
{0xca, 0x00080000}, {0xdf, 0x00000180},
{0xef, 0x000001a0}, {0x51, 0x0006b27d},
{0x52, 0x0007e49d}, /* Set to 0x0007e4dd for SDIO */
{0x53, 0x00000073}, {0x56, 0x00051ff3},
{0x35, 0x00000086}, {0x35, 0x00000186},
{0x35, 0x00000286}, {0x36, 0x00001c25},
{0x36, 0x00009c25}, {0x36, 0x00011c25},
{0x36, 0x00019c25}, {0xb6, 0x00048538},
{0x18, 0x00000c07}, {0x5a, 0x0004bd00},
{0x19, 0x000739d0}, {0x34, 0x0000adf3},
{0x34, 0x00009df0}, {0x34, 0x00008ded},
{0x34, 0x00007dea}, {0x34, 0x00006de7},
{0x34, 0x000054ee}, {0x34, 0x000044eb},
{0x34, 0x000034e8}, {0x34, 0x0000246b},
{0x34, 0x00001468}, {0x34, 0x0000006d},
{0x00, 0x00030159}, {0x84, 0x00068200},
{0x86, 0x000000ce}, {0x87, 0x00048a00},
{0x8e, 0x00065540}, {0x8f, 0x00088000},
{0xef, 0x000020a0}, {0x3b, 0x000f02b0},
{0x3b, 0x000ef7b0}, {0x3b, 0x000d4fb0},
{0x3b, 0x000cf060}, {0x3b, 0x000b0090},
{0x3b, 0x000a0080}, {0x3b, 0x00090080},
{0x3b, 0x0008f780}, {0x3b, 0x000722b0},
{0x3b, 0x0006f7b0}, {0x3b, 0x00054fb0},
{0x3b, 0x0004f060}, {0x3b, 0x00030090},
{0x3b, 0x00020080}, {0x3b, 0x00010080},
{0x3b, 0x0000f780}, {0xef, 0x000000a0},
{0x00, 0x00010159}, {0x18, 0x0000f407},
{0xFE, 0x00000000}, {0xFE, 0x00000000},
{0x1F, 0x00080003}, {0xFE, 0x00000000},
{0xFE, 0x00000000}, {0x1E, 0x00000001},
{0x1F, 0x00080000}, {0x00, 0x00033e60},
{0xff, 0xffffffff}
};
#define PERENTRY 23
#define RETRYSIZE 5
#define RATESIZE 28
#define TX_RPT2_ITEM_SIZE 8
static const u8 retry_penalty[PERENTRY][RETRYSIZE + 1] = {
{5, 4, 3, 2, 0, 3}, /* 92 , idx=0 */
{6, 5, 4, 3, 0, 4}, /* 86 , idx=1 */
{6, 5, 4, 2, 0, 4}, /* 81 , idx=2 */
{8, 7, 6, 4, 0, 6}, /* 75 , idx=3 */
{10, 9, 8, 6, 0, 8}, /* 71 , idx=4 */
{10, 9, 8, 4, 0, 8}, /* 66 , idx=5 */
{10, 9, 8, 2, 0, 8}, /* 62 , idx=6 */
{10, 9, 8, 0, 0, 8}, /* 59 , idx=7 */
{18, 17, 16, 8, 0, 16}, /* 53 , idx=8 */
{26, 25, 24, 16, 0, 24}, /* 50 , idx=9 */
{34, 33, 32, 24, 0, 32}, /* 47 , idx=0x0a */
{34, 31, 28, 20, 0, 32}, /* 43 , idx=0x0b */
{34, 31, 27, 18, 0, 32}, /* 40 , idx=0x0c */
{34, 31, 26, 16, 0, 32}, /* 37 , idx=0x0d */
{34, 30, 22, 16, 0, 32}, /* 32 , idx=0x0e */
{34, 30, 24, 16, 0, 32}, /* 26 , idx=0x0f */
{49, 46, 40, 16, 0, 48}, /* 20 , idx=0x10 */
{49, 45, 32, 0, 0, 48}, /* 17 , idx=0x11 */
{49, 45, 22, 18, 0, 48}, /* 15 , idx=0x12 */
{49, 40, 24, 16, 0, 48}, /* 12 , idx=0x13 */
{49, 32, 18, 12, 0, 48}, /* 9 , idx=0x14 */
{49, 22, 18, 14, 0, 48}, /* 6 , idx=0x15 */
{49, 16, 16, 0, 0, 48} /* 3, idx=0x16 */
};
static const u8 pt_penalty[RETRYSIZE + 1] = {34, 31, 30, 24, 0, 32};
static const u8 retry_penalty_idx_normal[2][RATESIZE] = {
{ /* RSSI>TH */
4, 4, 4, 5,
4, 4, 5, 7, 7, 7, 8, 0x0a,
4, 4, 4, 4, 6, 0x0a, 0x0b, 0x0d,
5, 5, 7, 7, 8, 0x0b, 0x0d, 0x0f
},
{ /* RSSI<TH */
0x0a, 0x0a, 0x0b, 0x0c,
0x0a, 0x0a, 0x0b, 0x0c, 0x0d, 0x10, 0x13, 0x13,
0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x11, 0x13, 0x13,
9, 9, 9, 9, 0x0c, 0x0e, 0x11, 0x13
}
};
static const u8 retry_penalty_idx_cut_i[2][RATESIZE] = {
{ /* RSSI>TH */
4, 4, 4, 5,
4, 4, 5, 7, 7, 7, 8, 0x0a,
4, 4, 4, 4, 6, 0x0a, 0x0b, 0x0d,
5, 5, 7, 7, 8, 0x0b, 0x0d, 0x0f
},
{ /* RSSI<TH */
0x0a, 0x0a, 0x0b, 0x0c,
0x0a, 0x0a, 0x0b, 0x0c, 0x0d, 0x10, 0x13, 0x13,
0x06, 0x07, 0x08, 0x0d, 0x0e, 0x11, 0x11, 0x11,
9, 9, 9, 9, 0x0c, 0x0e, 0x11, 0x13
}
};
static const u8 retry_penalty_up_idx_normal[RATESIZE] = {
0x0c, 0x0d, 0x0d, 0x0f,
0x0d, 0x0e, 0x0f, 0x0f, 0x10, 0x12, 0x13, 0x14,
0x0f, 0x10, 0x10, 0x12, 0x12, 0x13, 0x14, 0x15,
0x11, 0x11, 0x12, 0x13, 0x13, 0x13, 0x14, 0x15
};
static const u8 retry_penalty_up_idx_cut_i[RATESIZE] = {
0x0c, 0x0d, 0x0d, 0x0f,
0x0d, 0x0e, 0x0f, 0x0f, 0x10, 0x12, 0x13, 0x14,
0x0b, 0x0b, 0x11, 0x11, 0x12, 0x12, 0x12, 0x12,
0x11, 0x11, 0x12, 0x13, 0x13, 0x13, 0x14, 0x15
};
static const u8 rssi_threshold[RATESIZE] = {
0, 0, 0, 0,
0, 0, 0, 0, 0, 0x24, 0x26, 0x2a,
0x18, 0x1a, 0x1d, 0x1f, 0x21, 0x27, 0x29, 0x2a,
0, 0, 0, 0x1f, 0x23, 0x28, 0x2a, 0x2c
};
static const u16 n_threshold_high[RATESIZE] = {
4, 4, 8, 16,
24, 36, 48, 72, 96, 144, 192, 216,
60, 80, 100, 160, 240, 400, 600, 800,
300, 320, 480, 720, 1000, 1200, 1600, 2000
};
static const u16 n_threshold_low[RATESIZE] = {
2, 2, 4, 8,
12, 18, 24, 36, 48, 72, 96, 108,
30, 40, 50, 80, 120, 200, 300, 400,
150, 160, 240, 360, 500, 600, 800, 1000
};
static const u8 dropping_necessary[RATESIZE] = {
1, 1, 1, 1,
1, 2, 3, 4, 5, 6, 7, 8,
1, 2, 3, 4, 5, 6, 7, 8,
5, 6, 7, 8, 9, 10, 11, 12
};
static const u8 pending_for_rate_up_fail[5] = {2, 10, 24, 40, 60};
static const u16 dynamic_tx_rpt_timing[6] = {
0x186a, 0x30d4, 0x493e, 0x61a8, 0x7a12, 0x927c /* 200ms-1200ms */
};
enum rtl8188e_tx_rpt_timing {
DEFAULT_TIMING = 0,
INCREASE_TIMING,
DECREASE_TIMING
};
static int rtl8188eu_identify_chip(struct rtl8xxxu_priv *priv)
{
struct device *dev = &priv->udev->dev;
u32 sys_cfg, vendor;
int ret = 0;
strscpy(priv->chip_name, "8188EU", sizeof(priv->chip_name));
priv->rtl_chip = RTL8188E;
priv->rf_paths = 1;
priv->rx_paths = 1;
priv->tx_paths = 1;
priv->has_wifi = 1;
sys_cfg = rtl8xxxu_read32(priv, REG_SYS_CFG);
priv->chip_cut = u32_get_bits(sys_cfg, SYS_CFG_CHIP_VERSION_MASK);
if (sys_cfg & SYS_CFG_TRP_VAUX_EN) {
dev_info(dev, "Unsupported test chip\n");
return -EOPNOTSUPP;
}
/*
* TODO: At a glance, I cut requires a different firmware,
* different initialisation tables, and no software rate
* control. The vendor driver is not configured to handle
* I cut chips by default. Are there any in the wild?
*/
if (priv->chip_cut == 8) {
dev_info(dev, "RTL8188EU cut I is not supported. Please complain about it at [email protected].\n");
return -EOPNOTSUPP;
}
vendor = sys_cfg & SYS_CFG_VENDOR_ID;
rtl8xxxu_identify_vendor_1bit(priv, vendor);
ret = rtl8xxxu_config_endpoints_no_sie(priv);
return ret;
}
static void rtl8188eu_config_channel(struct ieee80211_hw *hw)
{
struct rtl8xxxu_priv *priv = hw->priv;
u32 val32, rsr;
u8 opmode;
int sec_ch_above, channel;
int i;
opmode = rtl8xxxu_read8(priv, REG_BW_OPMODE);
rsr = rtl8xxxu_read32(priv, REG_RESPONSE_RATE_SET);
channel = hw->conf.chandef.chan->hw_value;
switch (hw->conf.chandef.width) {
case NL80211_CHAN_WIDTH_20_NOHT:
case NL80211_CHAN_WIDTH_20:
opmode |= BW_OPMODE_20MHZ;
rtl8xxxu_write8(priv, REG_BW_OPMODE, opmode);
val32 = rtl8xxxu_read32(priv, REG_FPGA0_RF_MODE);
val32 &= ~FPGA_RF_MODE;
rtl8xxxu_write32(priv, REG_FPGA0_RF_MODE, val32);
val32 = rtl8xxxu_read32(priv, REG_FPGA1_RF_MODE);
val32 &= ~FPGA_RF_MODE;
rtl8xxxu_write32(priv, REG_FPGA1_RF_MODE, val32);
break;
case NL80211_CHAN_WIDTH_40:
if (hw->conf.chandef.center_freq1 >
hw->conf.chandef.chan->center_freq) {
sec_ch_above = 1;
channel += 2;
} else {
sec_ch_above = 0;
channel -= 2;
}
opmode &= ~BW_OPMODE_20MHZ;
rtl8xxxu_write8(priv, REG_BW_OPMODE, opmode);
rsr &= ~RSR_RSC_BANDWIDTH_40M;
if (sec_ch_above)
rsr |= RSR_RSC_LOWER_SUB_CHANNEL;
else
rsr |= RSR_RSC_UPPER_SUB_CHANNEL;
rtl8xxxu_write32(priv, REG_RESPONSE_RATE_SET, rsr);
val32 = rtl8xxxu_read32(priv, REG_FPGA0_RF_MODE);
val32 |= FPGA_RF_MODE;
rtl8xxxu_write32(priv, REG_FPGA0_RF_MODE, val32);
val32 = rtl8xxxu_read32(priv, REG_FPGA1_RF_MODE);
val32 |= FPGA_RF_MODE;
rtl8xxxu_write32(priv, REG_FPGA1_RF_MODE, val32);
/*
* Set Control channel to upper or lower. These settings
* are required only for 40MHz
*/
val32 = rtl8xxxu_read32(priv, REG_CCK0_SYSTEM);
val32 &= ~CCK0_SIDEBAND;
if (!sec_ch_above)
val32 |= CCK0_SIDEBAND;
rtl8xxxu_write32(priv, REG_CCK0_SYSTEM, val32);
val32 = rtl8xxxu_read32(priv, REG_OFDM1_LSTF);
val32 &= ~OFDM_LSTF_PRIME_CH_MASK; /* 0xc00 */
if (sec_ch_above)
val32 |= OFDM_LSTF_PRIME_CH_LOW;
else
val32 |= OFDM_LSTF_PRIME_CH_HIGH;
rtl8xxxu_write32(priv, REG_OFDM1_LSTF, val32);
val32 = rtl8xxxu_read32(priv, REG_FPGA0_POWER_SAVE);
val32 &= ~(FPGA0_PS_LOWER_CHANNEL | FPGA0_PS_UPPER_CHANNEL);
if (sec_ch_above)
val32 |= FPGA0_PS_UPPER_CHANNEL;
else
val32 |= FPGA0_PS_LOWER_CHANNEL;
rtl8xxxu_write32(priv, REG_FPGA0_POWER_SAVE, val32);
break;
default:
break;
}
for (i = RF_A; i < priv->rf_paths; i++) {
val32 = rtl8xxxu_read_rfreg(priv, i, RF6052_REG_MODE_AG);
u32p_replace_bits(&val32, channel, MODE_AG_CHANNEL_MASK);
rtl8xxxu_write_rfreg(priv, i, RF6052_REG_MODE_AG, val32);
}
for (i = RF_A; i < priv->rf_paths; i++) {
val32 = rtl8xxxu_read_rfreg(priv, i, RF6052_REG_MODE_AG);
val32 &= ~MODE_AG_BW_MASK;
if (hw->conf.chandef.width == NL80211_CHAN_WIDTH_40)
val32 |= MODE_AG_BW_40MHZ_8723B;
else
val32 |= MODE_AG_BW_20MHZ_8723B;
rtl8xxxu_write_rfreg(priv, i, RF6052_REG_MODE_AG, val32);
}
}
static void rtl8188eu_init_aggregation(struct rtl8xxxu_priv *priv)
{
u8 agg_ctrl, usb_spec;
usb_spec = rtl8xxxu_read8(priv, REG_USB_SPECIAL_OPTION);
usb_spec &= ~USB_SPEC_USB_AGG_ENABLE;
rtl8xxxu_write8(priv, REG_USB_SPECIAL_OPTION, usb_spec);
agg_ctrl = rtl8xxxu_read8(priv, REG_TRXDMA_CTRL);
agg_ctrl &= ~TRXDMA_CTRL_RXDMA_AGG_EN;
rtl8xxxu_write8(priv, REG_TRXDMA_CTRL, agg_ctrl);
}
static int rtl8188eu_parse_efuse(struct rtl8xxxu_priv *priv)
{
struct rtl8188eu_efuse *efuse = &priv->efuse_wifi.efuse8188eu;
if (efuse->rtl_id != cpu_to_le16(0x8129))
return -EINVAL;
ether_addr_copy(priv->mac_addr, efuse->mac_addr);
memcpy(priv->cck_tx_power_index_A, efuse->tx_power_index_A.cck_base,
sizeof(efuse->tx_power_index_A.cck_base));
memcpy(priv->ht40_1s_tx_power_index_A,
efuse->tx_power_index_A.ht40_base,
sizeof(efuse->tx_power_index_A.ht40_base));
priv->default_crystal_cap = efuse->xtal_k & 0x3f;
return 0;
}
static void rtl8188eu_reset_8051(struct rtl8xxxu_priv *priv)
{
u16 sys_func;
sys_func = rtl8xxxu_read16(priv, REG_SYS_FUNC);
sys_func &= ~SYS_FUNC_CPU_ENABLE;
rtl8xxxu_write16(priv, REG_SYS_FUNC, sys_func);
sys_func |= SYS_FUNC_CPU_ENABLE;
rtl8xxxu_write16(priv, REG_SYS_FUNC, sys_func);
}
static int rtl8188eu_load_firmware(struct rtl8xxxu_priv *priv)
{
const char *fw_name;
int ret;
fw_name = "rtlwifi/rtl8188eufw.bin";
ret = rtl8xxxu_load_firmware(priv, fw_name);
return ret;
}
static void rtl8188eu_init_phy_bb(struct rtl8xxxu_priv *priv)
{
u8 val8;
u16 val16;
val16 = rtl8xxxu_read16(priv, REG_SYS_FUNC);
val16 |= SYS_FUNC_BB_GLB_RSTN | SYS_FUNC_BBRSTB | SYS_FUNC_DIO_RF;
rtl8xxxu_write16(priv, REG_SYS_FUNC, val16);
/*
* Per vendor driver, run power sequence before init of RF
*/
val8 = RF_ENABLE | RF_RSTB | RF_SDMRSTB;
rtl8xxxu_write8(priv, REG_RF_CTRL, val8);
val8 = SYS_FUNC_USBA | SYS_FUNC_USBD |
SYS_FUNC_BB_GLB_RSTN | SYS_FUNC_BBRSTB;
rtl8xxxu_write8(priv, REG_SYS_FUNC, val8);
rtl8xxxu_init_phy_regs(priv, rtl8188eu_phy_init_table);
rtl8xxxu_init_phy_regs(priv, rtl8188e_agc_table);
}
static int rtl8188eu_init_phy_rf(struct rtl8xxxu_priv *priv)
{
return rtl8xxxu_init_phy_rf(priv, rtl8188eu_radioa_init_table, RF_A);
}
static int rtl8188eu_iqk_path_a(struct rtl8xxxu_priv *priv)
{
u32 reg_eac, reg_e94, reg_e9c;
int result = 0;
/* Path A IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_A, 0x10008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_A, 0x30008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x8214032a);
rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x28160000);
/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x00462911);
/* One shot, path A LOK & IQK */
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf9000000);
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf8000000);
mdelay(10);
/* Check failed */
reg_eac = rtl8xxxu_read32(priv, REG_RX_POWER_AFTER_IQK_A_2);
reg_e94 = rtl8xxxu_read32(priv, REG_TX_POWER_BEFORE_IQK_A);
reg_e9c = rtl8xxxu_read32(priv, REG_TX_POWER_AFTER_IQK_A);
if (!(reg_eac & BIT(28)) &&
((reg_e94 & 0x03ff0000) != 0x01420000) &&
((reg_e9c & 0x03ff0000) != 0x00420000))
result |= 0x01;
return result;
}
static int rtl8188eu_rx_iqk_path_a(struct rtl8xxxu_priv *priv)
{
u32 reg_ea4, reg_eac, reg_e94, reg_e9c, val32;
int result = 0;
/* Leave IQK mode */
val32 = rtl8xxxu_read32(priv, REG_FPGA0_IQK);
u32p_replace_bits(&val32, 0, 0xffffff00);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, val32);
/* Enable path A PA in TX IQK mode */
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_WE_LUT, 0x800a0);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_RCK_OS, 0x30000);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G1, 0x0000f);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G2, 0xf117b);
/* Enter IQK mode */
val32 = rtl8xxxu_read32(priv, REG_FPGA0_IQK);
u32p_replace_bits(&val32, 0x808000, 0xffffff00);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, val32);
/* TX IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK, 0x01007c00);
rtl8xxxu_write32(priv, REG_RX_IQK, 0x81004800);
/* path-A IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_A, 0x10008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_A, 0x30008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x82160804);
rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x28160000);
/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x0046a911);
/* One shot, path A LOK & IQK */
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf9000000);
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf8000000);
mdelay(10);
/* Check failed */
reg_eac = rtl8xxxu_read32(priv, REG_RX_POWER_AFTER_IQK_A_2);
reg_e94 = rtl8xxxu_read32(priv, REG_TX_POWER_BEFORE_IQK_A);
reg_e9c = rtl8xxxu_read32(priv, REG_TX_POWER_AFTER_IQK_A);
if (!(reg_eac & BIT(28)) &&
((reg_e94 & 0x03ff0000) != 0x01420000) &&
((reg_e9c & 0x03ff0000) != 0x00420000))
result |= 0x01;
else
goto out;
val32 = 0x80007c00 |
(reg_e94 & 0x03ff0000) | ((reg_e9c >> 16) & 0x03ff);
rtl8xxxu_write32(priv, REG_TX_IQK, val32);
/* Modify RX IQK mode table */
val32 = rtl8xxxu_read32(priv, REG_FPGA0_IQK);
u32p_replace_bits(&val32, 0, 0xffffff00);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, val32);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_WE_LUT, 0x800a0);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_RCK_OS, 0x30000);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G1, 0x0000f);
rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_TXPA_G2, 0xf7ffa);
/* Enter IQK mode */
val32 = rtl8xxxu_read32(priv, REG_FPGA0_IQK);
u32p_replace_bits(&val32, 0x808000, 0xffffff00);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, val32);
/* IQK setting */
rtl8xxxu_write32(priv, REG_RX_IQK, 0x01004800);
/* Path A IQK setting */
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_A, 0x30008c1c);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_A, 0x10008c1c);
rtl8xxxu_write32(priv, REG_TX_IQK_PI_A, 0x82160c05);
rtl8xxxu_write32(priv, REG_RX_IQK_PI_A, 0x28160c05);
/* LO calibration setting */
rtl8xxxu_write32(priv, REG_IQK_AGC_RSP, 0x0046a911);
/* One shot, path A LOK & IQK */
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf9000000);
rtl8xxxu_write32(priv, REG_IQK_AGC_PTS, 0xf8000000);
mdelay(10);
reg_eac = rtl8xxxu_read32(priv, REG_RX_POWER_AFTER_IQK_A_2);
reg_ea4 = rtl8xxxu_read32(priv, REG_RX_POWER_BEFORE_IQK_A_2);
if (!(reg_eac & BIT(27)) &&
((reg_ea4 & 0x03ff0000) != 0x01320000) &&
((reg_eac & 0x03ff0000) != 0x00360000))
result |= 0x02;
else
dev_warn(&priv->udev->dev, "%s: Path A RX IQK failed!\n",
__func__);
out:
return result;
}
static void rtl8188eu_phy_iqcalibrate(struct rtl8xxxu_priv *priv,
int result[][8], int t)
{
struct device *dev = &priv->udev->dev;
u32 i, val32;
int path_a_ok;
int retry = 2;
static const u32 adda_regs[RTL8XXXU_ADDA_REGS] = {
REG_FPGA0_XCD_SWITCH_CTRL, REG_BLUETOOTH,
REG_RX_WAIT_CCA, REG_TX_CCK_RFON,
REG_TX_CCK_BBON, REG_TX_OFDM_RFON,
REG_TX_OFDM_BBON, REG_TX_TO_RX,
REG_TX_TO_TX, REG_RX_CCK,
REG_RX_OFDM, REG_RX_WAIT_RIFS,
REG_RX_TO_RX, REG_STANDBY,
REG_SLEEP, REG_PMPD_ANAEN
};
static const u32 iqk_mac_regs[RTL8XXXU_MAC_REGS] = {
REG_TXPAUSE, REG_BEACON_CTRL,
REG_BEACON_CTRL_1, REG_GPIO_MUXCFG
};
static const u32 iqk_bb_regs[RTL8XXXU_BB_REGS] = {
REG_OFDM0_TRX_PATH_ENABLE, REG_OFDM0_TR_MUX_PAR,
REG_FPGA0_XCD_RF_SW_CTRL, REG_CONFIG_ANT_A, REG_CONFIG_ANT_B,
REG_FPGA0_XAB_RF_SW_CTRL, REG_FPGA0_XA_RF_INT_OE,
REG_FPGA0_XB_RF_INT_OE, REG_CCK0_AFE_SETTING
};
/*
* Note: IQ calibration must be performed after loading
* PHY_REG.txt , and radio_a, radio_b.txt
*/
if (t == 0) {
/* Save ADDA parameters, turn Path A ADDA on */
rtl8xxxu_save_regs(priv, adda_regs, priv->adda_backup,
RTL8XXXU_ADDA_REGS);
rtl8xxxu_save_mac_regs(priv, iqk_mac_regs, priv->mac_backup);
rtl8xxxu_save_regs(priv, iqk_bb_regs,
priv->bb_backup, RTL8XXXU_BB_REGS);
}
rtl8xxxu_path_adda_on(priv, adda_regs, true);
if (t == 0) {
val32 = rtl8xxxu_read32(priv, REG_FPGA0_XA_HSSI_PARM1);
priv->pi_enabled = u32_get_bits(val32, FPGA0_HSSI_PARM1_PI);
}
if (!priv->pi_enabled) {
/* Switch BB to PI mode to do IQ Calibration. */
rtl8xxxu_write32(priv, REG_FPGA0_XA_HSSI_PARM1, 0x01000100);
rtl8xxxu_write32(priv, REG_FPGA0_XB_HSSI_PARM1, 0x01000100);
}
/* MAC settings */
rtl8xxxu_mac_calibration(priv, iqk_mac_regs, priv->mac_backup);
val32 = rtl8xxxu_read32(priv, REG_CCK0_AFE_SETTING);
u32p_replace_bits(&val32, 0xf, 0x0f000000);
rtl8xxxu_write32(priv, REG_CCK0_AFE_SETTING, val32);
rtl8xxxu_write32(priv, REG_OFDM0_TRX_PATH_ENABLE, 0x03a05600);
rtl8xxxu_write32(priv, REG_OFDM0_TR_MUX_PAR, 0x000800e4);
rtl8xxxu_write32(priv, REG_FPGA0_XCD_RF_SW_CTRL, 0x22204000);
if (!priv->no_pape) {
val32 = rtl8xxxu_read32(priv, REG_FPGA0_XAB_RF_SW_CTRL);
val32 |= (FPGA0_RF_PAPE |
(FPGA0_RF_PAPE << FPGA0_RF_BD_CTRL_SHIFT));
rtl8xxxu_write32(priv, REG_FPGA0_XAB_RF_SW_CTRL, val32);
}
val32 = rtl8xxxu_read32(priv, REG_FPGA0_XA_RF_INT_OE);
val32 &= ~BIT(10);
rtl8xxxu_write32(priv, REG_FPGA0_XA_RF_INT_OE, val32);
val32 = rtl8xxxu_read32(priv, REG_FPGA0_XB_RF_INT_OE);
val32 &= ~BIT(10);
rtl8xxxu_write32(priv, REG_FPGA0_XB_RF_INT_OE, val32);
/* Page B init */
rtl8xxxu_write32(priv, REG_CONFIG_ANT_A, 0x0f600000);
/* IQ calibration setting */
val32 = rtl8xxxu_read32(priv, REG_FPGA0_IQK);
u32p_replace_bits(&val32, 0x808000, 0xffffff00);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, val32);
rtl8xxxu_write32(priv, REG_TX_IQK, 0x01007c00);
rtl8xxxu_write32(priv, REG_RX_IQK, 0x81004800);
for (i = 0; i < retry; i++) {
path_a_ok = rtl8188eu_iqk_path_a(priv);
if (path_a_ok == 0x01) {
val32 = rtl8xxxu_read32(priv,
REG_TX_POWER_BEFORE_IQK_A);
result[t][0] = (val32 >> 16) & 0x3ff;
val32 = rtl8xxxu_read32(priv,
REG_TX_POWER_AFTER_IQK_A);
result[t][1] = (val32 >> 16) & 0x3ff;
break;
}
}
if (!path_a_ok)
dev_dbg(dev, "%s: Path A TX IQK failed!\n", __func__);
for (i = 0; i < retry; i++) {
path_a_ok = rtl8188eu_rx_iqk_path_a(priv);
if (path_a_ok == 0x03) {
val32 = rtl8xxxu_read32(priv,
REG_RX_POWER_BEFORE_IQK_A_2);
result[t][2] = (val32 >> 16) & 0x3ff;
val32 = rtl8xxxu_read32(priv,
REG_RX_POWER_AFTER_IQK_A_2);
result[t][3] = (val32 >> 16) & 0x3ff;
break;
}
}
if (!path_a_ok)
dev_dbg(dev, "%s: Path A RX IQK failed!\n", __func__);
/* Back to BB mode, load original value */
val32 = rtl8xxxu_read32(priv, REG_FPGA0_IQK);
u32p_replace_bits(&val32, 0, 0xffffff00);
rtl8xxxu_write32(priv, REG_FPGA0_IQK, val32);
if (t == 0)
return;
if (!priv->pi_enabled) {
/* Switch back BB to SI mode after finishing IQ Calibration */
rtl8xxxu_write32(priv, REG_FPGA0_XA_HSSI_PARM1, 0x01000000);
rtl8xxxu_write32(priv, REG_FPGA0_XB_HSSI_PARM1, 0x01000000);
}
/* Reload ADDA power saving parameters */
rtl8xxxu_restore_regs(priv, adda_regs, priv->adda_backup,
RTL8XXXU_ADDA_REGS);
/* Reload MAC parameters */
rtl8xxxu_restore_mac_regs(priv, iqk_mac_regs, priv->mac_backup);
/* Reload BB parameters */
rtl8xxxu_restore_regs(priv, iqk_bb_regs,
priv->bb_backup, RTL8XXXU_BB_REGS);
/* Restore RX initial gain */
rtl8xxxu_write32(priv, REG_FPGA0_XA_LSSI_PARM, 0x00032ed3);
/* Load 0xe30 IQC default value */
rtl8xxxu_write32(priv, REG_TX_IQK_TONE_A, 0x01008c00);
rtl8xxxu_write32(priv, REG_RX_IQK_TONE_A, 0x01008c00);
}
static void rtl8188eu_phy_iq_calibrate(struct rtl8xxxu_priv *priv)
{
struct device *dev = &priv->udev->dev;
int result[4][8]; /* last is final result */
int i, candidate;
bool path_a_ok;
u32 reg_e94, reg_e9c, reg_ea4, reg_eac;
u32 reg_eb4, reg_ebc, reg_ec4, reg_ecc;
bool simu;
memset(result, 0, sizeof(result));
result[3][0] = 0x100;
result[3][2] = 0x100;
result[3][4] = 0x100;
result[3][6] = 0x100;
candidate = -1;
path_a_ok = false;
for (i = 0; i < 3; i++) {
rtl8188eu_phy_iqcalibrate(priv, result, i);
if (i == 1) {
simu = rtl8xxxu_simularity_compare(priv,
result, 0, 1);
if (simu) {
candidate = 0;
break;
}
}
if (i == 2) {
simu = rtl8xxxu_simularity_compare(priv,
result, 0, 2);
if (simu) {
candidate = 0;
break;
}
simu = rtl8xxxu_simularity_compare(priv,
result, 1, 2);
if (simu)
candidate = 1;
else
candidate = 3;
}
}
if (candidate >= 0) {
reg_e94 = result[candidate][0];
priv->rege94 = reg_e94;
reg_e9c = result[candidate][1];
priv->rege9c = reg_e9c;
reg_ea4 = result[candidate][2];
reg_eac = result[candidate][3];
reg_eb4 = result[candidate][4];
priv->regeb4 = reg_eb4;
reg_ebc = result[candidate][5];
priv->regebc = reg_ebc;
reg_ec4 = result[candidate][6];
reg_ecc = result[candidate][7];
dev_dbg(dev, "%s: candidate is %x\n", __func__, candidate);
dev_dbg(dev,
"%s: e94=%x e9c=%x ea4=%x eac=%x eb4=%x ebc=%x ec4=%x ecc=%x\n",
__func__, reg_e94, reg_e9c, reg_ea4, reg_eac,
reg_eb4, reg_ebc, reg_ec4, reg_ecc);
path_a_ok = true;
} else {
reg_e94 = 0x100;
reg_eb4 = 0x100;
priv->rege94 = 0x100;
priv->regeb4 = 0x100;
reg_e9c = 0x0;
reg_ebc = 0x0;
priv->rege9c = 0x0;
priv->regebc = 0x0;
}