527 lines
15 KiB
C
527 lines
15 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* RTL8XXXU mac80211 USB driver - 8723a specific subdriver
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*
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* Copyright (c) 2014 - 2017 Jes Sorensen <Jes.Sorensen@gmail.com>
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*
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* Portions, notably calibration code:
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* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
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*
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* This driver was written as a replacement for the vendor provided
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* rtl8723au driver. As the Realtek 8xxx chips are very similar in
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* their programming interface, I have started adding support for
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* additional 8xxx chips like the 8192cu, 8188cus, etc.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/spinlock.h>
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#include <linux/list.h>
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#include <linux/usb.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/ethtool.h>
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#include <linux/wireless.h>
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#include <linux/firmware.h>
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#include <linux/moduleparam.h>
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#include <net/mac80211.h>
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#include "rtl8xxxu.h"
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#include "rtl8xxxu_regs.h"
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static struct rtl8xxxu_power_base rtl8723a_power_base = {
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.reg_0e00 = 0x0a0c0c0c,
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.reg_0e04 = 0x02040608,
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.reg_0e08 = 0x00000000,
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.reg_086c = 0x00000000,
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.reg_0e10 = 0x0a0c0d0e,
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.reg_0e14 = 0x02040608,
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.reg_0e18 = 0x0a0c0d0e,
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.reg_0e1c = 0x02040608,
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.reg_0830 = 0x0a0c0c0c,
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.reg_0834 = 0x02040608,
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.reg_0838 = 0x00000000,
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.reg_086c_2 = 0x00000000,
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.reg_083c = 0x0a0c0d0e,
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.reg_0848 = 0x02040608,
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.reg_084c = 0x0a0c0d0e,
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.reg_0868 = 0x02040608,
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};
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static const struct rtl8xxxu_rfregval rtl8723au_radioa_1t_init_table[] = {
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{0x00, 0x00030159}, {0x01, 0x00031284},
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{0x02, 0x00098000}, {0x03, 0x00039c63},
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{0x04, 0x000210e7}, {0x09, 0x0002044f},
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{0x0a, 0x0001a3f1}, {0x0b, 0x00014787},
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{0x0c, 0x000896fe}, {0x0d, 0x0000e02c},
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{0x0e, 0x00039ce7}, {0x0f, 0x00000451},
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{0x19, 0x00000000}, {0x1a, 0x00030355},
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{0x1b, 0x00060a00}, {0x1c, 0x000fc378},
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{0x1d, 0x000a1250}, {0x1e, 0x0000024f},
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{0x1f, 0x00000000}, {0x20, 0x0000b614},
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{0x21, 0x0006c000}, {0x22, 0x00000000},
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{0x23, 0x00001558}, {0x24, 0x00000060},
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{0x25, 0x00000483}, {0x26, 0x0004f000},
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{0x27, 0x000ec7d9}, {0x28, 0x00057730},
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{0x29, 0x00004783}, {0x2a, 0x00000001},
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{0x2b, 0x00021334}, {0x2a, 0x00000000},
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{0x2b, 0x00000054}, {0x2a, 0x00000001},
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{0x2b, 0x00000808}, {0x2b, 0x00053333},
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{0x2c, 0x0000000c}, {0x2a, 0x00000002},
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{0x2b, 0x00000808}, {0x2b, 0x0005b333},
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{0x2c, 0x0000000d}, {0x2a, 0x00000003},
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{0x2b, 0x00000808}, {0x2b, 0x00063333},
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{0x2c, 0x0000000d}, {0x2a, 0x00000004},
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{0x2b, 0x00000808}, {0x2b, 0x0006b333},
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{0x2c, 0x0000000d}, {0x2a, 0x00000005},
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{0x2b, 0x00000808}, {0x2b, 0x00073333},
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{0x2c, 0x0000000d}, {0x2a, 0x00000006},
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{0x2b, 0x00000709}, {0x2b, 0x0005b333},
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{0x2c, 0x0000000d}, {0x2a, 0x00000007},
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{0x2b, 0x00000709}, {0x2b, 0x00063333},
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{0x2c, 0x0000000d}, {0x2a, 0x00000008},
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{0x2b, 0x0000060a}, {0x2b, 0x0004b333},
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{0x2c, 0x0000000d}, {0x2a, 0x00000009},
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{0x2b, 0x0000060a}, {0x2b, 0x00053333},
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{0x2c, 0x0000000d}, {0x2a, 0x0000000a},
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{0x2b, 0x0000060a}, {0x2b, 0x0005b333},
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{0x2c, 0x0000000d}, {0x2a, 0x0000000b},
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{0x2b, 0x0000060a}, {0x2b, 0x00063333},
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{0x2c, 0x0000000d}, {0x2a, 0x0000000c},
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{0x2b, 0x0000060a}, {0x2b, 0x0006b333},
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{0x2c, 0x0000000d}, {0x2a, 0x0000000d},
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{0x2b, 0x0000060a}, {0x2b, 0x00073333},
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{0x2c, 0x0000000d}, {0x2a, 0x0000000e},
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{0x2b, 0x0000050b}, {0x2b, 0x00066666},
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{0x2c, 0x0000001a}, {0x2a, 0x000e0000},
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{0x10, 0x0004000f}, {0x11, 0x000e31fc},
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{0x10, 0x0006000f}, {0x11, 0x000ff9f8},
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{0x10, 0x0002000f}, {0x11, 0x000203f9},
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{0x10, 0x0003000f}, {0x11, 0x000ff500},
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{0x10, 0x00000000}, {0x11, 0x00000000},
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{0x10, 0x0008000f}, {0x11, 0x0003f100},
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{0x10, 0x0009000f}, {0x11, 0x00023100},
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{0x12, 0x00032000}, {0x12, 0x00071000},
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{0x12, 0x000b0000}, {0x12, 0x000fc000},
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{0x13, 0x000287b3}, {0x13, 0x000244b7},
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{0x13, 0x000204ab}, {0x13, 0x0001c49f},
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{0x13, 0x00018493}, {0x13, 0x0001429b},
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{0x13, 0x00010299}, {0x13, 0x0000c29c},
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{0x13, 0x000081a0}, {0x13, 0x000040ac},
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{0x13, 0x00000020}, {0x14, 0x0001944c},
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{0x14, 0x00059444}, {0x14, 0x0009944c},
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{0x14, 0x000d9444}, {0x15, 0x0000f474},
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{0x15, 0x0004f477}, {0x15, 0x0008f455},
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{0x15, 0x000cf455}, {0x16, 0x00000339},
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{0x16, 0x00040339}, {0x16, 0x00080339},
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{0x16, 0x000c0366}, {0x00, 0x00010159},
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{0x18, 0x0000f401}, {0xfe, 0x00000000},
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{0xfe, 0x00000000}, {0x1f, 0x00000003},
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{0xfe, 0x00000000}, {0xfe, 0x00000000},
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{0x1e, 0x00000247}, {0x1f, 0x00000000},
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{0x00, 0x00030159},
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{0xff, 0xffffffff}
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};
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static int rtl8723au_identify_chip(struct rtl8xxxu_priv *priv)
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{
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struct device *dev = &priv->udev->dev;
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u32 val32, sys_cfg, vendor;
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int ret = 0;
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sys_cfg = rtl8xxxu_read32(priv, REG_SYS_CFG);
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priv->chip_cut = u32_get_bits(sys_cfg, SYS_CFG_CHIP_VERSION_MASK);
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if (sys_cfg & SYS_CFG_TRP_VAUX_EN) {
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dev_info(dev, "Unsupported test chip\n");
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ret = -ENOTSUPP;
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goto out;
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}
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strscpy(priv->chip_name, "8723AU", sizeof(priv->chip_name));
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priv->usb_interrupts = 1;
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priv->rtl_chip = RTL8723A;
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priv->rf_paths = 1;
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priv->rx_paths = 1;
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priv->tx_paths = 1;
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val32 = rtl8xxxu_read32(priv, REG_MULTI_FUNC_CTRL);
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if (val32 & MULTI_WIFI_FUNC_EN)
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priv->has_wifi = 1;
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if (val32 & MULTI_BT_FUNC_EN)
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priv->has_bluetooth = 1;
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if (val32 & MULTI_GPS_FUNC_EN)
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priv->has_gps = 1;
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priv->is_multi_func = 1;
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vendor = sys_cfg & SYS_CFG_VENDOR_ID;
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rtl8xxxu_identify_vendor_1bit(priv, vendor);
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val32 = rtl8xxxu_read32(priv, REG_GPIO_OUTSTS);
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priv->rom_rev = u32_get_bits(val32, GPIO_RF_RL_ID);
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rtl8xxxu_config_endpoints_sie(priv);
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/*
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* Fallback for devices that do not provide REG_NORMAL_SIE_EP_TX
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*/
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if (!priv->ep_tx_count)
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ret = rtl8xxxu_config_endpoints_no_sie(priv);
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out:
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return ret;
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}
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static int rtl8723au_parse_efuse(struct rtl8xxxu_priv *priv)
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{
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struct rtl8723au_efuse *efuse = &priv->efuse_wifi.efuse8723;
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if (efuse->rtl_id != cpu_to_le16(0x8129))
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return -EINVAL;
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ether_addr_copy(priv->mac_addr, efuse->mac_addr);
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memcpy(priv->cck_tx_power_index_A,
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efuse->cck_tx_power_index_A,
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sizeof(efuse->cck_tx_power_index_A));
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memcpy(priv->cck_tx_power_index_B,
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efuse->cck_tx_power_index_B,
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sizeof(efuse->cck_tx_power_index_B));
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memcpy(priv->ht40_1s_tx_power_index_A,
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efuse->ht40_1s_tx_power_index_A,
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sizeof(efuse->ht40_1s_tx_power_index_A));
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memcpy(priv->ht40_1s_tx_power_index_B,
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efuse->ht40_1s_tx_power_index_B,
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sizeof(efuse->ht40_1s_tx_power_index_B));
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memcpy(priv->ht20_tx_power_index_diff,
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efuse->ht20_tx_power_index_diff,
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sizeof(efuse->ht20_tx_power_index_diff));
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memcpy(priv->ofdm_tx_power_index_diff,
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efuse->ofdm_tx_power_index_diff,
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sizeof(efuse->ofdm_tx_power_index_diff));
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memcpy(priv->ht40_max_power_offset,
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efuse->ht40_max_power_offset,
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sizeof(efuse->ht40_max_power_offset));
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memcpy(priv->ht20_max_power_offset,
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efuse->ht20_max_power_offset,
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sizeof(efuse->ht20_max_power_offset));
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if (priv->efuse_wifi.efuse8723.version >= 0x01)
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priv->default_crystal_cap = priv->efuse_wifi.efuse8723.xtal_k & 0x3f;
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else
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priv->fops->set_crystal_cap = NULL;
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priv->power_base = &rtl8723a_power_base;
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dev_info(&priv->udev->dev, "Vendor: %.7s\n",
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efuse->vendor_name);
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dev_info(&priv->udev->dev, "Product: %.41s\n",
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efuse->device_name);
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return 0;
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}
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static int rtl8723au_load_firmware(struct rtl8xxxu_priv *priv)
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{
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const char *fw_name;
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int ret;
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switch (priv->chip_cut) {
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case 0:
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fw_name = "rtlwifi/rtl8723aufw_A.bin";
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break;
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case 1:
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if (priv->enable_bluetooth)
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fw_name = "rtlwifi/rtl8723aufw_B.bin";
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else
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fw_name = "rtlwifi/rtl8723aufw_B_NoBT.bin";
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break;
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default:
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return -EINVAL;
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}
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ret = rtl8xxxu_load_firmware(priv, fw_name);
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return ret;
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}
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static int rtl8723au_init_phy_rf(struct rtl8xxxu_priv *priv)
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{
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int ret;
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ret = rtl8xxxu_init_phy_rf(priv, rtl8723au_radioa_1t_init_table, RF_A);
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/* Reduce 80M spur */
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rtl8xxxu_write32(priv, REG_AFE_XTAL_CTRL, 0x0381808d);
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rtl8xxxu_write32(priv, REG_AFE_PLL_CTRL, 0xf0ffff83);
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rtl8xxxu_write32(priv, REG_AFE_PLL_CTRL, 0xf0ffff82);
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rtl8xxxu_write32(priv, REG_AFE_PLL_CTRL, 0xf0ffff83);
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return ret;
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}
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static int rtl8723a_emu_to_active(struct rtl8xxxu_priv *priv)
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{
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u8 val8;
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u32 val32;
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int count, ret = 0;
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/* 0x20[0] = 1 enable LDOA12 MACRO block for all interface*/
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val8 = rtl8xxxu_read8(priv, REG_LDOA15_CTRL);
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val8 |= LDOA15_ENABLE;
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rtl8xxxu_write8(priv, REG_LDOA15_CTRL, val8);
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/* 0x67[0] = 0 to disable BT_GPS_SEL pins*/
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val8 = rtl8xxxu_read8(priv, 0x0067);
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val8 &= ~BIT(4);
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rtl8xxxu_write8(priv, 0x0067, val8);
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mdelay(1);
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/* 0x00[5] = 0 release analog Ips to digital, 1:isolation */
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val8 = rtl8xxxu_read8(priv, REG_SYS_ISO_CTRL);
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val8 &= ~SYS_ISO_ANALOG_IPS;
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rtl8xxxu_write8(priv, REG_SYS_ISO_CTRL, val8);
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/* disable SW LPS 0x04[10]= 0 */
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val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1);
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val8 &= ~BIT(2);
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rtl8xxxu_write8(priv, REG_APS_FSMCO + 1, val8);
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/* wait till 0x04[17] = 1 power ready*/
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for (count = RTL8XXXU_MAX_REG_POLL; count; count--) {
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val32 = rtl8xxxu_read32(priv, REG_APS_FSMCO);
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if (val32 & BIT(17))
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break;
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udelay(10);
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}
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if (!count) {
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ret = -EBUSY;
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goto exit;
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}
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/* We should be able to optimize the following three entries into one */
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/* release WLON reset 0x04[16]= 1*/
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val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 2);
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val8 |= BIT(0);
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rtl8xxxu_write8(priv, REG_APS_FSMCO + 2, val8);
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/* disable HWPDN 0x04[15]= 0*/
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val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1);
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val8 &= ~BIT(7);
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rtl8xxxu_write8(priv, REG_APS_FSMCO + 1, val8);
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/* disable WL suspend*/
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val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1);
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val8 &= ~(BIT(3) | BIT(4));
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rtl8xxxu_write8(priv, REG_APS_FSMCO + 1, val8);
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/* set, then poll until 0 */
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val32 = rtl8xxxu_read32(priv, REG_APS_FSMCO);
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val32 |= APS_FSMCO_MAC_ENABLE;
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rtl8xxxu_write32(priv, REG_APS_FSMCO, val32);
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for (count = RTL8XXXU_MAX_REG_POLL; count; count--) {
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val32 = rtl8xxxu_read32(priv, REG_APS_FSMCO);
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if ((val32 & APS_FSMCO_MAC_ENABLE) == 0) {
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ret = 0;
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break;
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}
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udelay(10);
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}
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if (!count) {
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ret = -EBUSY;
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goto exit;
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}
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/* 0x4C[23] = 0x4E[7] = 1, switch DPDT_SEL_P output from WL BB */
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/*
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* Note: Vendor driver actually clears this bit, despite the
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* documentation claims it's being set!
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*/
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val8 = rtl8xxxu_read8(priv, REG_LEDCFG2);
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val8 |= LEDCFG2_DPDT_SELECT;
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val8 &= ~LEDCFG2_DPDT_SELECT;
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rtl8xxxu_write8(priv, REG_LEDCFG2, val8);
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exit:
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return ret;
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}
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static int rtl8723au_power_on(struct rtl8xxxu_priv *priv)
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{
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u8 val8;
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u16 val16;
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u32 val32;
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int ret;
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/*
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* RSV_CTRL 0x001C[7:0] = 0x00, unlock ISO/CLK/Power control register
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*/
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rtl8xxxu_write8(priv, REG_RSV_CTRL, 0x0);
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rtl8xxxu_disabled_to_emu(priv);
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ret = rtl8723a_emu_to_active(priv);
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if (ret)
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goto exit;
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/*
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* 0x0004[19] = 1, reset 8051
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*/
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val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 2);
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val8 |= BIT(3);
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rtl8xxxu_write8(priv, REG_APS_FSMCO + 2, val8);
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/*
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* Enable MAC DMA/WMAC/SCHEDULE/SEC block
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* Set CR bit10 to enable 32k calibration.
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*/
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val16 = rtl8xxxu_read16(priv, REG_CR);
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val16 |= (CR_HCI_TXDMA_ENABLE | CR_HCI_RXDMA_ENABLE |
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CR_TXDMA_ENABLE | CR_RXDMA_ENABLE |
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CR_PROTOCOL_ENABLE | CR_SCHEDULE_ENABLE |
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CR_MAC_TX_ENABLE | CR_MAC_RX_ENABLE |
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CR_SECURITY_ENABLE | CR_CALTIMER_ENABLE);
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rtl8xxxu_write16(priv, REG_CR, val16);
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/* For EFuse PG */
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val32 = rtl8xxxu_read32(priv, REG_EFUSE_CTRL);
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val32 &= ~(BIT(28) | BIT(29) | BIT(30));
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val32 |= (0x06 << 28);
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rtl8xxxu_write32(priv, REG_EFUSE_CTRL, val32);
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exit:
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return ret;
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}
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#define XTAL1 GENMASK(23, 18)
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#define XTAL0 GENMASK(17, 12)
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void rtl8723a_set_crystal_cap(struct rtl8xxxu_priv *priv, u8 crystal_cap)
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{
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struct rtl8xxxu_cfo_tracking *cfo = &priv->cfo_tracking;
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u32 val32;
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if (crystal_cap == cfo->crystal_cap)
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return;
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|
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val32 = rtl8xxxu_read32(priv, REG_MAC_PHY_CTRL);
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|
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dev_dbg(&priv->udev->dev,
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"%s: Adjusting crystal cap from 0x%x (actually 0x%lx 0x%lx) to 0x%x\n",
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__func__,
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cfo->crystal_cap,
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FIELD_GET(XTAL1, val32),
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FIELD_GET(XTAL0, val32),
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crystal_cap);
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val32 &= ~(XTAL1 | XTAL0);
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val32 |= FIELD_PREP(XTAL1, crystal_cap) |
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FIELD_PREP(XTAL0, crystal_cap);
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rtl8xxxu_write32(priv, REG_MAC_PHY_CTRL, val32);
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|
|
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cfo->crystal_cap = crystal_cap;
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}
|
|
|
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s8 rtl8723a_cck_rssi(struct rtl8xxxu_priv *priv, u8 cck_agc_rpt)
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{
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s8 rx_pwr_all = 0x00;
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|
|
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switch (cck_agc_rpt & 0xc0) {
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case 0xc0:
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rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
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break;
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case 0x80:
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rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
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break;
|
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case 0x40:
|
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rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
|
|
break;
|
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case 0x00:
|
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rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
|
|
break;
|
|
}
|
|
|
|
return rx_pwr_all;
|
|
}
|
|
|
|
static int rtl8723au_led_brightness_set(struct led_classdev *led_cdev,
|
|
enum led_brightness brightness)
|
|
{
|
|
struct rtl8xxxu_priv *priv = container_of(led_cdev,
|
|
struct rtl8xxxu_priv,
|
|
led_cdev);
|
|
u8 ledcfg = rtl8xxxu_read8(priv, REG_LEDCFG2);
|
|
|
|
if (brightness == LED_OFF) {
|
|
ledcfg &= ~LEDCFG2_HW_LED_CONTROL;
|
|
ledcfg |= LEDCFG2_SW_LED_CONTROL | LEDCFG2_SW_LED_DISABLE;
|
|
} else if (brightness == LED_ON) {
|
|
ledcfg &= ~(LEDCFG2_HW_LED_CONTROL | LEDCFG2_SW_LED_DISABLE);
|
|
ledcfg |= LEDCFG2_SW_LED_CONTROL;
|
|
} else if (brightness == RTL8XXXU_HW_LED_CONTROL) {
|
|
ledcfg &= ~LEDCFG2_SW_LED_DISABLE;
|
|
ledcfg |= LEDCFG2_HW_LED_CONTROL | LEDCFG2_HW_LED_ENABLE;
|
|
}
|
|
|
|
rtl8xxxu_write8(priv, REG_LEDCFG2, ledcfg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct rtl8xxxu_fileops rtl8723au_fops = {
|
|
.identify_chip = rtl8723au_identify_chip,
|
|
.parse_efuse = rtl8723au_parse_efuse,
|
|
.load_firmware = rtl8723au_load_firmware,
|
|
.power_on = rtl8723au_power_on,
|
|
.power_off = rtl8xxxu_power_off,
|
|
.reset_8051 = rtl8xxxu_reset_8051,
|
|
.llt_init = rtl8xxxu_init_llt_table,
|
|
.init_phy_bb = rtl8xxxu_gen1_init_phy_bb,
|
|
.init_phy_rf = rtl8723au_init_phy_rf,
|
|
.phy_lc_calibrate = rtl8723a_phy_lc_calibrate,
|
|
.phy_iq_calibrate = rtl8xxxu_gen1_phy_iq_calibrate,
|
|
.config_channel = rtl8xxxu_gen1_config_channel,
|
|
.parse_rx_desc = rtl8xxxu_parse_rxdesc16,
|
|
.init_aggregation = rtl8xxxu_gen1_init_aggregation,
|
|
.enable_rf = rtl8xxxu_gen1_enable_rf,
|
|
.disable_rf = rtl8xxxu_gen1_disable_rf,
|
|
.usb_quirks = rtl8xxxu_gen1_usb_quirks,
|
|
.set_tx_power = rtl8xxxu_gen1_set_tx_power,
|
|
.update_rate_mask = rtl8xxxu_update_rate_mask,
|
|
.report_connect = rtl8xxxu_gen1_report_connect,
|
|
.report_rssi = rtl8xxxu_gen1_report_rssi,
|
|
.fill_txdesc = rtl8xxxu_fill_txdesc_v1,
|
|
.set_crystal_cap = rtl8723a_set_crystal_cap,
|
|
.cck_rssi = rtl8723a_cck_rssi,
|
|
.led_classdev_brightness_set = rtl8723au_led_brightness_set,
|
|
.writeN_block_size = 1024,
|
|
.rx_agg_buf_size = 16000,
|
|
.tx_desc_size = sizeof(struct rtl8xxxu_txdesc32),
|
|
.rx_desc_size = sizeof(struct rtl8xxxu_rxdesc16),
|
|
.adda_1t_init = 0x0b1b25a0,
|
|
.adda_1t_path_on = 0x0bdb25a0,
|
|
.adda_2t_path_on_a = 0x04db25a4,
|
|
.adda_2t_path_on_b = 0x0b1b25a4,
|
|
.trxff_boundary = 0x27ff,
|
|
.pbp_rx = PBP_PAGE_SIZE_128,
|
|
.pbp_tx = PBP_PAGE_SIZE_128,
|
|
.mactable = rtl8xxxu_gen1_mac_init_table,
|
|
.total_page_num = TX_TOTAL_PAGE_NUM,
|
|
.page_num_hi = TX_PAGE_NUM_HI_PQ,
|
|
.page_num_lo = TX_PAGE_NUM_LO_PQ,
|
|
.page_num_norm = TX_PAGE_NUM_NORM_PQ,
|
|
};
|