Quelle  rtl8225.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Radio tuning for RTL8225 on RTL8187
 *
 * Copyright 2007 Michael Wu <flamingice@sourmilk.net>
 * Copyright 2007 Andrea Merello <andrea.merello@gmail.com>
 *
 * Based on the r8187 driver, which is:
 * Copyright 2005 Andrea Merello <andrea.merello@gmail.com>, et al.
 *
 * Magic delays, register offsets, and phy value tables below are
 * taken from the original r8187 driver sources.  Thanks to Realtek
 * for their support!
 */

#include <linux/usb.h>
#include <net/mac80211.h>

#include "rtl8187.h"
#include "rtl8225.h"

u8 rtl818x_ioread8_idx(struct rtl8187_priv *priv,
    u8 *addr, u8 idx)
{
 u8 val;

 mutex_lock(&priv->io_mutex);
 usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
   RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
   (unsigned long)addr, idx & 0x03,
   &priv->io_dmabuf->bits8, sizeof(val), 500);

 val = priv->io_dmabuf->bits8;
 mutex_unlock(&priv->io_mutex);

 return val;
}

u16 rtl818x_ioread16_idx(struct rtl8187_priv *priv,
    __le16 *addr, u8 idx)
{
 __le16 val;

 mutex_lock(&priv->io_mutex);
 usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
   RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
   (unsigned long)addr, idx & 0x03,
   &priv->io_dmabuf->bits16, sizeof(val), 500);

 val = priv->io_dmabuf->bits16;
 mutex_unlock(&priv->io_mutex);

 return le16_to_cpu(val);
}

u32 rtl818x_ioread32_idx(struct rtl8187_priv *priv,
    __le32 *addr, u8 idx)
{
 __le32 val;

 mutex_lock(&priv->io_mutex);
 usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
   RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
   (unsigned long)addr, idx & 0x03,
   &priv->io_dmabuf->bits32, sizeof(val), 500);

 val = priv->io_dmabuf->bits32;
 mutex_unlock(&priv->io_mutex);

 return le32_to_cpu(val);
}

void rtl818x_iowrite8_idx(struct rtl8187_priv *priv,
    u8 *addr, u8 val, u8 idx)
{
 mutex_lock(&priv->io_mutex);

 priv->io_dmabuf->bits8 = val;
 usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
   RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
   (unsigned long)addr, idx & 0x03,
   &priv->io_dmabuf->bits8, sizeof(val), 500);

 mutex_unlock(&priv->io_mutex);
}

void rtl818x_iowrite16_idx(struct rtl8187_priv *priv,
    __le16 *addr, u16 val, u8 idx)
{
 mutex_lock(&priv->io_mutex);

 priv->io_dmabuf->bits16 = cpu_to_le16(val);
 usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
   RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
   (unsigned long)addr, idx & 0x03,
   &priv->io_dmabuf->bits16, sizeof(val), 500);

 mutex_unlock(&priv->io_mutex);
}

void rtl818x_iowrite32_idx(struct rtl8187_priv *priv,
    __le32 *addr, u32 val, u8 idx)
{
 mutex_lock(&priv->io_mutex);

 priv->io_dmabuf->bits32 = cpu_to_le32(val);
 usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
   RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
   (unsigned long)addr, idx & 0x03,
   &priv->io_dmabuf->bits32, sizeof(val), 500);

 mutex_unlock(&priv->io_mutex);
}

static void rtl8225_write_bitbang(struct ieee80211_hw *dev, u8 addr, u16 data)
{
 struct rtl8187_priv *priv = dev->priv;
 u16 reg80, reg84, reg82;
 u32 bangdata;
 int i;

 bangdata = (data << 4) | (addr & 0xf);

 reg80 = rtl818x_ioread16(priv, &priv->map->RFPinsOutput) & 0xfff3;
 reg82 = rtl818x_ioread16(priv, &priv->map->RFPinsEnable);

 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, reg82 | 0x7);

 reg84 = rtl818x_ioread16(priv, &priv->map->RFPinsSelect);
 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, reg84 | 0x7);
 udelay(10);

 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg80 | (1 << 2));
 udelay(2);
 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg80);
 udelay(10);

 for (i = 15; i >= 0; i--) {
  u16 reg = reg80 | (bangdata & (1 << i)) >> i;

  if (i & 1)
   rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg);

  rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg | (1 << 1));
  rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg | (1 << 1));

  if (!(i & 1))
   rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg);
 }

 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg80 | (1 << 2));
 udelay(10);

 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg80 | (1 << 2));
 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, reg84);
}

static void rtl8225_write_8051(struct ieee80211_hw *dev, u8 addr, __le16 data)
{
 struct rtl8187_priv *priv = dev->priv;
 u16 reg80, reg82, reg84;

 reg80 = rtl818x_ioread16(priv, &priv->map->RFPinsOutput);
 reg82 = rtl818x_ioread16(priv, &priv->map->RFPinsEnable);
 reg84 = rtl818x_ioread16(priv, &priv->map->RFPinsSelect);

 reg80 &= ~(0x3 << 2);
 reg84 &= ~0xF;

 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, reg82 | 0x0007);
 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, reg84 | 0x0007);
 udelay(10);

 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg80 | (1 << 2));
 udelay(2);

 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg80);
 udelay(10);

 mutex_lock(&priv->io_mutex);

 priv->io_dmabuf->bits16 = data;
 usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
   RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
   addr, 0x8225, &priv->io_dmabuf->bits16, sizeof(data),
   500);

 mutex_unlock(&priv->io_mutex);

 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg80 | (1 << 2));
 udelay(10);

 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg80 | (1 << 2));
 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, reg84);
}

static void rtl8225_write(struct ieee80211_hw *dev, u8 addr, u16 data)
{
 struct rtl8187_priv *priv = dev->priv;

 if (priv->asic_rev)
  rtl8225_write_8051(dev, addr, cpu_to_le16(data));
 else
  rtl8225_write_bitbang(dev, addr, data);
}

static u16 rtl8225_read(struct ieee80211_hw *dev, u8 addr)
{
 struct rtl8187_priv *priv = dev->priv;
 u16 reg80, reg82, reg84, out;
 int i;

 reg80 = rtl818x_ioread16(priv, &priv->map->RFPinsOutput);
 reg82 = rtl818x_ioread16(priv, &priv->map->RFPinsEnable);
 reg84 = rtl818x_ioread16(priv, &priv->map->RFPinsSelect);

 reg80 &= ~0xF;

 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, reg82 | 0x000F);
 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, reg84 | 0x000F);

 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg80 | (1 << 2));
 udelay(4);
 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg80);
 udelay(5);

 for (i = 4; i >= 0; i--) {
  u16 reg = reg80 | ((addr >> i) & 1);

  if (!(i & 1)) {
   rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg);
   udelay(1);
  }

  rtl818x_iowrite16(priv, &priv->map->RFPinsOutput,
      reg | (1 << 1));
  udelay(2);
  rtl818x_iowrite16(priv, &priv->map->RFPinsOutput,
      reg | (1 << 1));
  udelay(2);

  if (i & 1) {
   rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, reg);
   udelay(1);
  }
 }

 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput,
     reg80 | (1 << 3) | (1 << 1));
 udelay(2);
 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput,
     reg80 | (1 << 3));
 udelay(2);
 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput,
     reg80 | (1 << 3));
 udelay(2);

 out = 0;
 for (i = 11; i >= 0; i--) {
  rtl818x_iowrite16(priv, &priv->map->RFPinsOutput,
      reg80 | (1 << 3));
  udelay(1);
  rtl818x_iowrite16(priv, &priv->map->RFPinsOutput,
      reg80 | (1 << 3) | (1 << 1));
  udelay(2);
  rtl818x_iowrite16(priv, &priv->map->RFPinsOutput,
      reg80 | (1 << 3) | (1 << 1));
  udelay(2);
  rtl818x_iowrite16(priv, &priv->map->RFPinsOutput,
      reg80 | (1 << 3) | (1 << 1));
  udelay(2);

  if (rtl818x_ioread16(priv, &priv->map->RFPinsInput) & (1 << 1))
   out |= 1 << i;

  rtl818x_iowrite16(priv, &priv->map->RFPinsOutput,
      reg80 | (1 << 3));
  udelay(2);
 }

 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput,
     reg80 | (1 << 3) | (1 << 2));
 udelay(2);

 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, reg82);
 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, reg84);
 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x03A0);

 return out;
}

static const u16 rtl8225bcd_rxgain[] = {
 0x0400, 0x0401, 0x0402, 0x0403, 0x0404, 0x0405, 0x0408, 0x0409,
 0x040a, 0x040b, 0x0502, 0x0503, 0x0504, 0x0505, 0x0540, 0x0541,
 0x0542, 0x0543, 0x0544, 0x0545, 0x0580, 0x0581, 0x0582, 0x0583,
 0x0584, 0x0585, 0x0588, 0x0589, 0x058a, 0x058b, 0x0643, 0x0644,
 0x0645, 0x0680, 0x0681, 0x0682, 0x0683, 0x0684, 0x0685, 0x0688,
 0x0689, 0x068a, 0x068b, 0x068c, 0x0742, 0x0743, 0x0744, 0x0745,
 0x0780, 0x0781, 0x0782, 0x0783, 0x0784, 0x0785, 0x0788, 0x0789,
 0x078a, 0x078b, 0x078c, 0x078d, 0x0790, 0x0791, 0x0792, 0x0793,
 0x0794, 0x0795, 0x0798, 0x0799, 0x079a, 0x079b, 0x079c, 0x079d,
 0x07a0, 0x07a1, 0x07a2, 0x07a3, 0x07a4, 0x07a5, 0x07a8, 0x07a9,
 0x07aa, 0x07ab, 0x07ac, 0x07ad, 0x07b0, 0x07b1, 0x07b2, 0x07b3,
 0x07b4, 0x07b5, 0x07b8, 0x07b9, 0x07ba, 0x07bb, 0x07bb
};

static const u8 rtl8225_agc[] = {
 0x9e, 0x9e, 0x9e, 0x9e, 0x9e, 0x9e, 0x9e, 0x9e,
 0x9d, 0x9c, 0x9b, 0x9a, 0x99, 0x98, 0x97, 0x96,
 0x95, 0x94, 0x93, 0x92, 0x91, 0x90, 0x8f, 0x8e,
 0x8d, 0x8c, 0x8b, 0x8a, 0x89, 0x88, 0x87, 0x86,
 0x85, 0x84, 0x83, 0x82, 0x81, 0x80, 0x3f, 0x3e,
 0x3d, 0x3c, 0x3b, 0x3a, 0x39, 0x38, 0x37, 0x36,
 0x35, 0x34, 0x33, 0x32, 0x31, 0x30, 0x2f, 0x2e,
 0x2d, 0x2c, 0x2b, 0x2a, 0x29, 0x28, 0x27, 0x26,
 0x25, 0x24, 0x23, 0x22, 0x21, 0x20, 0x1f, 0x1e,
 0x1d, 0x1c, 0x1b, 0x1a, 0x19, 0x18, 0x17, 0x16,
 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0f, 0x0e,
 0x0d, 0x0c, 0x0b, 0x0a, 0x09, 0x08, 0x07, 0x06,
 0x05, 0x04, 0x03, 0x02, 0x01, 0x01, 0x01, 0x01,
 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01
};

static const u8 rtl8225_gain[] = {
 0x23, 0x88, 0x7c, 0xa5, /* -82dBm */
 0x23, 0x88, 0x7c, 0xb5, /* -82dBm */
 0x23, 0x88, 0x7c, 0xc5, /* -82dBm */
 0x33, 0x80, 0x79, 0xc5, /* -78dBm */
 0x43, 0x78, 0x76, 0xc5, /* -74dBm */
 0x53, 0x60, 0x73, 0xc5, /* -70dBm */
 0x63, 0x58, 0x70, 0xc5, /* -66dBm */
};

static const u8 rtl8225_threshold[] = {
 0x8d, 0x8d, 0x8d, 0x8d, 0x9d, 0xad, 0xbd
};

static const u8 rtl8225_tx_gain_cck_ofdm[] = {
 0x02, 0x06, 0x0e, 0x1e, 0x3e, 0x7e
};

static const u8 rtl8225_tx_power_cck[] = {
 0x18, 0x17, 0x15, 0x11, 0x0c, 0x08, 0x04, 0x02,
 0x1b, 0x1a, 0x17, 0x13, 0x0e, 0x09, 0x04, 0x02,
 0x1f, 0x1e, 0x1a, 0x15, 0x10, 0x0a, 0x05, 0x02,
 0x22, 0x21, 0x1d, 0x18, 0x11, 0x0b, 0x06, 0x02,
 0x26, 0x25, 0x21, 0x1b, 0x14, 0x0d, 0x06, 0x03,
 0x2b, 0x2a, 0x25, 0x1e, 0x16, 0x0e, 0x07, 0x03
};

static const u8 rtl8225_tx_power_cck_ch14[] = {
 0x18, 0x17, 0x15, 0x0c, 0x00, 0x00, 0x00, 0x00,
 0x1b, 0x1a, 0x17, 0x0e, 0x00, 0x00, 0x00, 0x00,
 0x1f, 0x1e, 0x1a, 0x0f, 0x00, 0x00, 0x00, 0x00,
 0x22, 0x21, 0x1d, 0x11, 0x00, 0x00, 0x00, 0x00,
 0x26, 0x25, 0x21, 0x13, 0x00, 0x00, 0x00, 0x00,
 0x2b, 0x2a, 0x25, 0x15, 0x00, 0x00, 0x00, 0x00
};

static const u8 rtl8225_tx_power_ofdm[] = {
 0x80, 0x90, 0xa2, 0xb5, 0xcb, 0xe4
};

static const u32 rtl8225_chan[] = {
 0x085c, 0x08dc, 0x095c, 0x09dc, 0x0a5c, 0x0adc, 0x0b5c,
 0x0bdc, 0x0c5c, 0x0cdc, 0x0d5c, 0x0ddc, 0x0e5c, 0x0f72
};

static void rtl8225_rf_set_tx_power(struct ieee80211_hw *dev, int channel)
{
 struct rtl8187_priv *priv = dev->priv;
 u8 cck_power, ofdm_power;
 const u8 *tmp;
 u32 reg;
 int i;

 cck_power = priv->channels[channel - 1].hw_value & 0xF;
 ofdm_power = priv->channels[channel - 1].hw_value >> 4;

 cck_power = min(cck_power, (u8)11);
 if (ofdm_power > (u8)15)
  ofdm_power = 25;
 else
  ofdm_power += 10;

 rtl818x_iowrite8(priv, &priv->map->TX_GAIN_CCK,
    rtl8225_tx_gain_cck_ofdm[cck_power / 6] >> 1);

 if (channel == 14)
  tmp = &rtl8225_tx_power_cck_ch14[(cck_power % 6) * 8];
 else
  tmp = &rtl8225_tx_power_cck[(cck_power % 6) * 8];

 for (i = 0; i < 8; i++)
  rtl8225_write_phy_cck(dev, 0x44 + i, *tmp++);

 msleep(1); // FIXME: optional?

 /* anaparam2 on */
 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
   reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
     RTL8187_RTL8225_ANAPARAM2_ON);
 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
   reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);

 rtl8225_write_phy_ofdm(dev, 2, 0x42);
 rtl8225_write_phy_ofdm(dev, 6, 0x00);
 rtl8225_write_phy_ofdm(dev, 8, 0x00);

 rtl818x_iowrite8(priv, &priv->map->TX_GAIN_OFDM,
    rtl8225_tx_gain_cck_ofdm[ofdm_power / 6] >> 1);

 tmp = &rtl8225_tx_power_ofdm[ofdm_power % 6];

 rtl8225_write_phy_ofdm(dev, 5, *tmp);
 rtl8225_write_phy_ofdm(dev, 7, *tmp);

 msleep(1);
}

static void rtl8225_rf_init(struct ieee80211_hw *dev)
{
 struct rtl8187_priv *priv = dev->priv;
 int i;

 rtl8225_write(dev, 0x0, 0x067);
 rtl8225_write(dev, 0x1, 0xFE0);
 rtl8225_write(dev, 0x2, 0x44D);
 rtl8225_write(dev, 0x3, 0x441);
 rtl8225_write(dev, 0x4, 0x486);
 rtl8225_write(dev, 0x5, 0xBC0);
 rtl8225_write(dev, 0x6, 0xAE6);
 rtl8225_write(dev, 0x7, 0x82A);
 rtl8225_write(dev, 0x8, 0x01F);
 rtl8225_write(dev, 0x9, 0x334);
 rtl8225_write(dev, 0xA, 0xFD4);
 rtl8225_write(dev, 0xB, 0x391);
 rtl8225_write(dev, 0xC, 0x050);
 rtl8225_write(dev, 0xD, 0x6DB);
 rtl8225_write(dev, 0xE, 0x029);
 rtl8225_write(dev, 0xF, 0x914); msleep(100);

 rtl8225_write(dev, 0x2, 0xC4D); msleep(200);
 rtl8225_write(dev, 0x2, 0x44D); msleep(200);

 if (!(rtl8225_read(dev, 6) & (1 << 7))) {
  rtl8225_write(dev, 0x02, 0x0c4d);
  msleep(200);
  rtl8225_write(dev, 0x02, 0x044d);
  msleep(100);
  if (!(rtl8225_read(dev, 6) & (1 << 7)))
   wiphy_warn(dev->wiphy, "RF Calibration Failed! %x\n",
       rtl8225_read(dev, 6));
 }

 rtl8225_write(dev, 0x0, 0x127);

 for (i = 0; i < ARRAY_SIZE(rtl8225bcd_rxgain); i++) {
  rtl8225_write(dev, 0x1, i + 1);
  rtl8225_write(dev, 0x2, rtl8225bcd_rxgain[i]);
 }

 rtl8225_write(dev, 0x0, 0x027);
 rtl8225_write(dev, 0x0, 0x22F);

 for (i = 0; i < ARRAY_SIZE(rtl8225_agc); i++) {
  rtl8225_write_phy_ofdm(dev, 0xB, rtl8225_agc[i]);
  rtl8225_write_phy_ofdm(dev, 0xA, 0x80 + i);
 }

 msleep(1);

 rtl8225_write_phy_ofdm(dev, 0x00, 0x01);
 rtl8225_write_phy_ofdm(dev, 0x01, 0x02);
 rtl8225_write_phy_ofdm(dev, 0x02, 0x42);
 rtl8225_write_phy_ofdm(dev, 0x03, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x04, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x05, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x06, 0x40);
 rtl8225_write_phy_ofdm(dev, 0x07, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x08, 0x40);
 rtl8225_write_phy_ofdm(dev, 0x09, 0xfe);
 rtl8225_write_phy_ofdm(dev, 0x0a, 0x09);
 rtl8225_write_phy_ofdm(dev, 0x0b, 0x80);
 rtl8225_write_phy_ofdm(dev, 0x0c, 0x01);
 rtl8225_write_phy_ofdm(dev, 0x0e, 0xd3);
 rtl8225_write_phy_ofdm(dev, 0x0f, 0x38);
 rtl8225_write_phy_ofdm(dev, 0x10, 0x84);
 rtl8225_write_phy_ofdm(dev, 0x11, 0x06);
 rtl8225_write_phy_ofdm(dev, 0x12, 0x20);
 rtl8225_write_phy_ofdm(dev, 0x13, 0x20);
 rtl8225_write_phy_ofdm(dev, 0x14, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x15, 0x40);
 rtl8225_write_phy_ofdm(dev, 0x16, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x17, 0x40);
 rtl8225_write_phy_ofdm(dev, 0x18, 0xef);
 rtl8225_write_phy_ofdm(dev, 0x19, 0x19);
 rtl8225_write_phy_ofdm(dev, 0x1a, 0x20);
 rtl8225_write_phy_ofdm(dev, 0x1b, 0x76);
 rtl8225_write_phy_ofdm(dev, 0x1c, 0x04);
 rtl8225_write_phy_ofdm(dev, 0x1e, 0x95);
 rtl8225_write_phy_ofdm(dev, 0x1f, 0x75);
 rtl8225_write_phy_ofdm(dev, 0x20, 0x1f);
 rtl8225_write_phy_ofdm(dev, 0x21, 0x27);
 rtl8225_write_phy_ofdm(dev, 0x22, 0x16);
 rtl8225_write_phy_ofdm(dev, 0x24, 0x46);
 rtl8225_write_phy_ofdm(dev, 0x25, 0x20);
 rtl8225_write_phy_ofdm(dev, 0x26, 0x90);
 rtl8225_write_phy_ofdm(dev, 0x27, 0x88);

 rtl8225_write_phy_ofdm(dev, 0x0d, rtl8225_gain[2 * 4]);
 rtl8225_write_phy_ofdm(dev, 0x1b, rtl8225_gain[2 * 4 + 2]);
 rtl8225_write_phy_ofdm(dev, 0x1d, rtl8225_gain[2 * 4 + 3]);
 rtl8225_write_phy_ofdm(dev, 0x23, rtl8225_gain[2 * 4 + 1]);

 rtl8225_write_phy_cck(dev, 0x00, 0x98);
 rtl8225_write_phy_cck(dev, 0x03, 0x20);
 rtl8225_write_phy_cck(dev, 0x04, 0x7e);
 rtl8225_write_phy_cck(dev, 0x05, 0x12);
 rtl8225_write_phy_cck(dev, 0x06, 0xfc);
 rtl8225_write_phy_cck(dev, 0x07, 0x78);
 rtl8225_write_phy_cck(dev, 0x08, 0x2e);
 rtl8225_write_phy_cck(dev, 0x10, 0x9b);
 rtl8225_write_phy_cck(dev, 0x11, 0x88);
 rtl8225_write_phy_cck(dev, 0x12, 0x47);
 rtl8225_write_phy_cck(dev, 0x13, 0xd0);
 rtl8225_write_phy_cck(dev, 0x19, 0x00);
 rtl8225_write_phy_cck(dev, 0x1a, 0xa0);
 rtl8225_write_phy_cck(dev, 0x1b, 0x08);
 rtl8225_write_phy_cck(dev, 0x40, 0x86);
 rtl8225_write_phy_cck(dev, 0x41, 0x8d);
 rtl8225_write_phy_cck(dev, 0x42, 0x15);
 rtl8225_write_phy_cck(dev, 0x43, 0x18);
 rtl8225_write_phy_cck(dev, 0x44, 0x1f);
 rtl8225_write_phy_cck(dev, 0x45, 0x1e);
 rtl8225_write_phy_cck(dev, 0x46, 0x1a);
 rtl8225_write_phy_cck(dev, 0x47, 0x15);
 rtl8225_write_phy_cck(dev, 0x48, 0x10);
 rtl8225_write_phy_cck(dev, 0x49, 0x0a);
 rtl8225_write_phy_cck(dev, 0x4a, 0x05);
 rtl8225_write_phy_cck(dev, 0x4b, 0x02);
 rtl8225_write_phy_cck(dev, 0x4c, 0x05);

 rtl818x_iowrite8(priv, &priv->map->TESTR, 0x0D);

 rtl8225_rf_set_tx_power(dev, 1);

 /* RX antenna default to A */
 rtl8225_write_phy_cck(dev, 0x10, 0x9b);   /* B: 0xDB */
 rtl8225_write_phy_ofdm(dev, 0x26, 0x90);  /* B: 0x10 */

 rtl818x_iowrite8(priv, &priv->map->TX_ANTENNA, 0x03); /* B: 0x00 */
 msleep(1);
 rtl818x_iowrite32(priv, (__le32 *)0xFF94, 0x3dc00002);

 /* set sensitivity */
 rtl8225_write(dev, 0x0c, 0x50);
 rtl8225_write_phy_ofdm(dev, 0x0d, rtl8225_gain[2 * 4]);
 rtl8225_write_phy_ofdm(dev, 0x1b, rtl8225_gain[2 * 4 + 2]);
 rtl8225_write_phy_ofdm(dev, 0x1d, rtl8225_gain[2 * 4 + 3]);
 rtl8225_write_phy_ofdm(dev, 0x23, rtl8225_gain[2 * 4 + 1]);
 rtl8225_write_phy_cck(dev, 0x41, rtl8225_threshold[2]);
}

static const u8 rtl8225z2_agc[] = {
 0x5e, 0x5e, 0x5e, 0x5e, 0x5d, 0x5b, 0x59, 0x57, 0x55, 0x53, 0x51, 0x4f,
 0x4d, 0x4b, 0x49, 0x47, 0x45, 0x43, 0x41, 0x3f, 0x3d, 0x3b, 0x39, 0x37,
 0x35, 0x33, 0x31, 0x2f, 0x2d, 0x2b, 0x29, 0x27, 0x25, 0x23, 0x21, 0x1f,
 0x1d, 0x1b, 0x19, 0x17, 0x15, 0x13, 0x11, 0x0f, 0x0d, 0x0b, 0x09, 0x07,
 0x05, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
 0x01, 0x01, 0x01, 0x01, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19,
 0x19, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x26, 0x27, 0x27, 0x28,
 0x28, 0x29, 0x2a, 0x2a, 0x2a, 0x2b, 0x2b, 0x2b, 0x2c, 0x2c, 0x2c, 0x2d,
 0x2d, 0x2d, 0x2d, 0x2e, 0x2e, 0x2e, 0x2e, 0x2f, 0x2f, 0x2f, 0x30, 0x30,
 0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31,
 0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31
};
static const u8 rtl8225z2_ofdm[] = {
 0x10, 0x0d, 0x01, 0x00, 0x14, 0xfb, 0xfb, 0x60,
 0x00, 0x60, 0x00, 0x00, 0x00, 0x5c, 0x00, 0x00,
 0x40, 0x00, 0x40, 0x00, 0x00, 0x00, 0xa8, 0x26,
 0x32, 0x33, 0x07, 0xa5, 0x6f, 0x55, 0xc8, 0xb3,
 0x0a, 0xe1, 0x2C, 0x8a, 0x86, 0x83, 0x34, 0x0f,
 0x4f, 0x24, 0x6f, 0xc2, 0x6b, 0x40, 0x80, 0x00,
 0xc0, 0xc1, 0x58, 0xf1, 0x00, 0xe4, 0x90, 0x3e,
 0x6d, 0x3c, 0xfb, 0x07
};

static const u8 rtl8225z2_tx_power_cck_ch14[] = {
 0x36, 0x35, 0x2e, 0x1b, 0x00, 0x00, 0x00, 0x00,
 0x30, 0x2f, 0x29, 0x15, 0x00, 0x00, 0x00, 0x00,
 0x30, 0x2f, 0x29, 0x15, 0x00, 0x00, 0x00, 0x00,
 0x30, 0x2f, 0x29, 0x15, 0x00, 0x00, 0x00, 0x00
};

static const u8 rtl8225z2_tx_power_cck[] = {
 0x36, 0x35, 0x2e, 0x25, 0x1c, 0x12, 0x09, 0x04,
 0x30, 0x2f, 0x29, 0x21, 0x19, 0x10, 0x08, 0x03,
 0x2b, 0x2a, 0x25, 0x1e, 0x16, 0x0e, 0x07, 0x03,
 0x26, 0x25, 0x21, 0x1b, 0x14, 0x0d, 0x06, 0x03
};

static const u8 rtl8225z2_tx_gain_cck_ofdm[] = {
 0x00, 0x01, 0x02, 0x03, 0x04, 0x05,
 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11,
 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d,
 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23
};

static void rtl8225z2_rf_set_tx_power(struct ieee80211_hw *dev, int channel)
{
 struct rtl8187_priv *priv = dev->priv;
 u8 cck_power, ofdm_power;
 const u8 *tmp;
 u32 reg;
 int i;

 cck_power = priv->channels[channel - 1].hw_value & 0xF;
 ofdm_power = priv->channels[channel - 1].hw_value >> 4;

 cck_power = min(cck_power, (u8)15);
 cck_power += priv->txpwr_base & 0xF;
 cck_power = min(cck_power, (u8)35);

 if (ofdm_power > (u8)15)
  ofdm_power = 25;
 else
  ofdm_power += 10;
 ofdm_power += priv->txpwr_base >> 4;
 ofdm_power = min(ofdm_power, (u8)35);

 if (channel == 14)
  tmp = rtl8225z2_tx_power_cck_ch14;
 else
  tmp = rtl8225z2_tx_power_cck;

 for (i = 0; i < 8; i++)
  rtl8225_write_phy_cck(dev, 0x44 + i, *tmp++);

 rtl818x_iowrite8(priv, &priv->map->TX_GAIN_CCK,
    rtl8225z2_tx_gain_cck_ofdm[cck_power]);
 msleep(1);

 /* anaparam2 on */
 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
   reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2,
     RTL8187_RTL8225_ANAPARAM2_ON);
 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
   reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);

 rtl8225_write_phy_ofdm(dev, 2, 0x42);
 rtl8225_write_phy_ofdm(dev, 5, 0x00);
 rtl8225_write_phy_ofdm(dev, 6, 0x40);
 rtl8225_write_phy_ofdm(dev, 7, 0x00);
 rtl8225_write_phy_ofdm(dev, 8, 0x40);

 rtl818x_iowrite8(priv, &priv->map->TX_GAIN_OFDM,
    rtl8225z2_tx_gain_cck_ofdm[ofdm_power]);
 msleep(1);
}

static void rtl8225z2_b_rf_set_tx_power(struct ieee80211_hw *dev, int channel)
{
 struct rtl8187_priv *priv = dev->priv;
 u8 cck_power, ofdm_power;
 const u8 *tmp;
 int i;

 cck_power = priv->channels[channel - 1].hw_value & 0xF;
 ofdm_power = priv->channels[channel - 1].hw_value >> 4;

 cck_power += (priv->hw_rev == RTL8187BvB) ? 0 : 7;
 cck_power += priv->txpwr_base & 0xF;
 cck_power = min(cck_power, (u8)35);

 if (ofdm_power > 15)
  ofdm_power = (priv->hw_rev == RTL8187BvB) ? 17 : 25;
 else
  ofdm_power += (priv->hw_rev == RTL8187BvB) ? 2 : 10;
 ofdm_power += (priv->txpwr_base >> 4) & 0xF;
 ofdm_power = min(ofdm_power, (u8)35);

 if (channel == 14)
  tmp = rtl8225z2_tx_power_cck_ch14;
 else
  tmp = rtl8225z2_tx_power_cck;

 if (priv->hw_rev == RTL8187BvB) {
  if (cck_power <= 6)
   ; /* do nothing */
  else if (cck_power <= 11)
   tmp += 8;
  else
   tmp += 16;
 } else {
  if (cck_power <= 5)
   ; /* do nothing */
  else if (cck_power <= 11)
   tmp += 8;
  else if (cck_power <= 17)
   tmp += 16;
  else
   tmp += 24;
 }

 for (i = 0; i < 8; i++)
  rtl8225_write_phy_cck(dev, 0x44 + i, *tmp++);

 rtl818x_iowrite8(priv, &priv->map->TX_GAIN_CCK,
    rtl8225z2_tx_gain_cck_ofdm[cck_power] << 1);
 msleep(1);

 rtl818x_iowrite8(priv, &priv->map->TX_GAIN_OFDM,
    rtl8225z2_tx_gain_cck_ofdm[ofdm_power] << 1);
 if (priv->hw_rev == RTL8187BvB) {
  if (ofdm_power <= 11) {
   rtl8225_write_phy_ofdm(dev, 0x87, 0x60);
   rtl8225_write_phy_ofdm(dev, 0x89, 0x60);
  } else {
   rtl8225_write_phy_ofdm(dev, 0x87, 0x5c);
   rtl8225_write_phy_ofdm(dev, 0x89, 0x5c);
  }
 } else {
  if (ofdm_power <= 11) {
   rtl8225_write_phy_ofdm(dev, 0x87, 0x5c);
   rtl8225_write_phy_ofdm(dev, 0x89, 0x5c);
  } else if (ofdm_power <= 17) {
   rtl8225_write_phy_ofdm(dev, 0x87, 0x54);
   rtl8225_write_phy_ofdm(dev, 0x89, 0x54);
  } else {
   rtl8225_write_phy_ofdm(dev, 0x87, 0x50);
   rtl8225_write_phy_ofdm(dev, 0x89, 0x50);
  }
 }
 msleep(1);
}

static const u16 rtl8225z2_rxgain[] = {
 0x0400, 0x0401, 0x0402, 0x0403, 0x0404, 0x0405, 0x0408, 0x0409,
 0x040a, 0x040b, 0x0502, 0x0503, 0x0504, 0x0505, 0x0540, 0x0541,
 0x0542, 0x0543, 0x0544, 0x0545, 0x0580, 0x0581, 0x0582, 0x0583,
 0x0584, 0x0585, 0x0588, 0x0589, 0x058a, 0x058b, 0x0643, 0x0644,
 0x0645, 0x0680, 0x0681, 0x0682, 0x0683, 0x0684, 0x0685, 0x0688,
 0x0689, 0x068a, 0x068b, 0x068c, 0x0742, 0x0743, 0x0744, 0x0745,
 0x0780, 0x0781, 0x0782, 0x0783, 0x0784, 0x0785, 0x0788, 0x0789,
 0x078a, 0x078b, 0x078c, 0x078d, 0x0790, 0x0791, 0x0792, 0x0793,
 0x0794, 0x0795, 0x0798, 0x0799, 0x079a, 0x079b, 0x079c, 0x079d,
 0x07a0, 0x07a1, 0x07a2, 0x07a3, 0x07a4, 0x07a5, 0x07a8, 0x07a9,
 0x03aa, 0x03ab, 0x03ac, 0x03ad, 0x03b0, 0x03b1, 0x03b2, 0x03b3,
 0x03b4, 0x03b5, 0x03b8, 0x03b9, 0x03ba, 0x03bb, 0x03bb
};

static const u8 rtl8225z2_gain_bg[] = {
 0x23, 0x15, 0xa5, /* -82-1dBm */
 0x23, 0x15, 0xb5, /* -82-2dBm */
 0x23, 0x15, 0xc5, /* -82-3dBm */
 0x33, 0x15, 0xc5, /* -78dBm */
 0x43, 0x15, 0xc5, /* -74dBm */
 0x53, 0x15, 0xc5, /* -70dBm */
 0x63, 0x15, 0xc5  /* -66dBm */
};

static void rtl8225z2_rf_init(struct ieee80211_hw *dev)
{
 struct rtl8187_priv *priv = dev->priv;
 int i;

 rtl8225_write(dev, 0x0, 0x2BF);
 rtl8225_write(dev, 0x1, 0xEE0);
 rtl8225_write(dev, 0x2, 0x44D);
 rtl8225_write(dev, 0x3, 0x441);
 rtl8225_write(dev, 0x4, 0x8C3);
 rtl8225_write(dev, 0x5, 0xC72);
 rtl8225_write(dev, 0x6, 0x0E6);
 rtl8225_write(dev, 0x7, 0x82A);
 rtl8225_write(dev, 0x8, 0x03F);
 rtl8225_write(dev, 0x9, 0x335);
 rtl8225_write(dev, 0xa, 0x9D4);
 rtl8225_write(dev, 0xb, 0x7BB);
 rtl8225_write(dev, 0xc, 0x850);
 rtl8225_write(dev, 0xd, 0xCDF);
 rtl8225_write(dev, 0xe, 0x02B);
 rtl8225_write(dev, 0xf, 0x114);
 msleep(100);

 rtl8225_write(dev, 0x0, 0x1B7);

 for (i = 0; i < ARRAY_SIZE(rtl8225z2_rxgain); i++) {
  rtl8225_write(dev, 0x1, i + 1);
  rtl8225_write(dev, 0x2, rtl8225z2_rxgain[i]);
 }

 rtl8225_write(dev, 0x3, 0x080);
 rtl8225_write(dev, 0x5, 0x004);
 rtl8225_write(dev, 0x0, 0x0B7);
 rtl8225_write(dev, 0x2, 0xc4D);

 msleep(200);
 rtl8225_write(dev, 0x2, 0x44D);
 msleep(100);

 if (!(rtl8225_read(dev, 6) & (1 << 7))) {
  rtl8225_write(dev, 0x02, 0x0C4D);
  msleep(200);
  rtl8225_write(dev, 0x02, 0x044D);
  msleep(100);
  if (!(rtl8225_read(dev, 6) & (1 << 7)))
   wiphy_warn(dev->wiphy, "RF Calibration Failed! %x\n",
       rtl8225_read(dev, 6));
 }

 msleep(200);

 rtl8225_write(dev, 0x0, 0x2BF);

 for (i = 0; i < ARRAY_SIZE(rtl8225_agc); i++) {
  rtl8225_write_phy_ofdm(dev, 0xB, rtl8225_agc[i]);
  rtl8225_write_phy_ofdm(dev, 0xA, 0x80 + i);
 }

 msleep(1);

 rtl8225_write_phy_ofdm(dev, 0x00, 0x01);
 rtl8225_write_phy_ofdm(dev, 0x01, 0x02);
 rtl8225_write_phy_ofdm(dev, 0x02, 0x42);
 rtl8225_write_phy_ofdm(dev, 0x03, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x04, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x05, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x06, 0x40);
 rtl8225_write_phy_ofdm(dev, 0x07, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x08, 0x40);
 rtl8225_write_phy_ofdm(dev, 0x09, 0xfe);
 rtl8225_write_phy_ofdm(dev, 0x0a, 0x08);
 rtl8225_write_phy_ofdm(dev, 0x0b, 0x80);
 rtl8225_write_phy_ofdm(dev, 0x0c, 0x01);
 rtl8225_write_phy_ofdm(dev, 0x0d, 0x43);
 rtl8225_write_phy_ofdm(dev, 0x0e, 0xd3);
 rtl8225_write_phy_ofdm(dev, 0x0f, 0x38);
 rtl8225_write_phy_ofdm(dev, 0x10, 0x84);
 rtl8225_write_phy_ofdm(dev, 0x11, 0x07);
 rtl8225_write_phy_ofdm(dev, 0x12, 0x20);
 rtl8225_write_phy_ofdm(dev, 0x13, 0x20);
 rtl8225_write_phy_ofdm(dev, 0x14, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x15, 0x40);
 rtl8225_write_phy_ofdm(dev, 0x16, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x17, 0x40);
 rtl8225_write_phy_ofdm(dev, 0x18, 0xef);
 rtl8225_write_phy_ofdm(dev, 0x19, 0x19);
 rtl8225_write_phy_ofdm(dev, 0x1a, 0x20);
 rtl8225_write_phy_ofdm(dev, 0x1b, 0x15);
 rtl8225_write_phy_ofdm(dev, 0x1c, 0x04);
 rtl8225_write_phy_ofdm(dev, 0x1d, 0xc5);
 rtl8225_write_phy_ofdm(dev, 0x1e, 0x95);
 rtl8225_write_phy_ofdm(dev, 0x1f, 0x75);
 rtl8225_write_phy_ofdm(dev, 0x20, 0x1f);
 rtl8225_write_phy_ofdm(dev, 0x21, 0x17);
 rtl8225_write_phy_ofdm(dev, 0x22, 0x16);
 rtl8225_write_phy_ofdm(dev, 0x23, 0x80);
 rtl8225_write_phy_ofdm(dev, 0x24, 0x46);
 rtl8225_write_phy_ofdm(dev, 0x25, 0x00);
 rtl8225_write_phy_ofdm(dev, 0x26, 0x90);
 rtl8225_write_phy_ofdm(dev, 0x27, 0x88);

 rtl8225_write_phy_ofdm(dev, 0x0b, rtl8225z2_gain_bg[4 * 3]);
 rtl8225_write_phy_ofdm(dev, 0x1b, rtl8225z2_gain_bg[4 * 3 + 1]);
 rtl8225_write_phy_ofdm(dev, 0x1d, rtl8225z2_gain_bg[4 * 3 + 2]);
 rtl8225_write_phy_ofdm(dev, 0x21, 0x37);

 rtl8225_write_phy_cck(dev, 0x00, 0x98);
 rtl8225_write_phy_cck(dev, 0x03, 0x20);
 rtl8225_write_phy_cck(dev, 0x04, 0x7e);
 rtl8225_write_phy_cck(dev, 0x05, 0x12);
 rtl8225_write_phy_cck(dev, 0x06, 0xfc);
 rtl8225_write_phy_cck(dev, 0x07, 0x78);
 rtl8225_write_phy_cck(dev, 0x08, 0x2e);
 rtl8225_write_phy_cck(dev, 0x10, 0x9b);
 rtl8225_write_phy_cck(dev, 0x11, 0x88);
 rtl8225_write_phy_cck(dev, 0x12, 0x47);
 rtl8225_write_phy_cck(dev, 0x13, 0xd0);
 rtl8225_write_phy_cck(dev, 0x19, 0x00);
 rtl8225_write_phy_cck(dev, 0x1a, 0xa0);
 rtl8225_write_phy_cck(dev, 0x1b, 0x08);
 rtl8225_write_phy_cck(dev, 0x40, 0x86);
 rtl8225_write_phy_cck(dev, 0x41, 0x8d);
 rtl8225_write_phy_cck(dev, 0x42, 0x15);
 rtl8225_write_phy_cck(dev, 0x43, 0x18);
 rtl8225_write_phy_cck(dev, 0x44, 0x36);
 rtl8225_write_phy_cck(dev, 0x45, 0x35);
 rtl8225_write_phy_cck(dev, 0x46, 0x2e);
 rtl8225_write_phy_cck(dev, 0x47, 0x25);
 rtl8225_write_phy_cck(dev, 0x48, 0x1c);
 rtl8225_write_phy_cck(dev, 0x49, 0x12);
 rtl8225_write_phy_cck(dev, 0x4a, 0x09);
 rtl8225_write_phy_cck(dev, 0x4b, 0x04);
 rtl8225_write_phy_cck(dev, 0x4c, 0x05);

 rtl818x_iowrite8(priv, (u8 *)0xFF5B, 0x0D); msleep(1);

 rtl8225z2_rf_set_tx_power(dev, 1);

 /* RX antenna default to A */
 rtl8225_write_phy_cck(dev, 0x10, 0x9b);   /* B: 0xDB */
 rtl8225_write_phy_ofdm(dev, 0x26, 0x90);  /* B: 0x10 */

 rtl818x_iowrite8(priv, &priv->map->TX_ANTENNA, 0x03); /* B: 0x00 */
 msleep(1);
 rtl818x_iowrite32(priv, (__le32 *)0xFF94, 0x3dc00002);
}

static void rtl8225z2_b_rf_init(struct ieee80211_hw *dev)
{
 struct rtl8187_priv *priv = dev->priv;
 int i;

 rtl8225_write(dev, 0x0, 0x0B7);
 rtl8225_write(dev, 0x1, 0xEE0);
 rtl8225_write(dev, 0x2, 0x44D);
 rtl8225_write(dev, 0x3, 0x441);
 rtl8225_write(dev, 0x4, 0x8C3);
 rtl8225_write(dev, 0x5, 0xC72);
 rtl8225_write(dev, 0x6, 0x0E6);
 rtl8225_write(dev, 0x7, 0x82A);
 rtl8225_write(dev, 0x8, 0x03F);
 rtl8225_write(dev, 0x9, 0x335);
 rtl8225_write(dev, 0xa, 0x9D4);
 rtl8225_write(dev, 0xb, 0x7BB);
 rtl8225_write(dev, 0xc, 0x850);
 rtl8225_write(dev, 0xd, 0xCDF);
 rtl8225_write(dev, 0xe, 0x02B);
 rtl8225_write(dev, 0xf, 0x114);

 rtl8225_write(dev, 0x0, 0x1B7);

 for (i = 0; i < ARRAY_SIZE(rtl8225z2_rxgain); i++) {
  rtl8225_write(dev, 0x1, i + 1);
  rtl8225_write(dev, 0x2, rtl8225z2_rxgain[i]);
 }

 rtl8225_write(dev, 0x3, 0x080);
 rtl8225_write(dev, 0x5, 0x004);
 rtl8225_write(dev, 0x0, 0x0B7);

 rtl8225_write(dev, 0x2, 0xC4D);

 rtl8225_write(dev, 0x2, 0x44D);
 rtl8225_write(dev, 0x0, 0x2BF);

 rtl818x_iowrite8(priv, &priv->map->TX_GAIN_CCK, 0x03);
 rtl818x_iowrite8(priv, &priv->map->TX_GAIN_OFDM, 0x07);
 rtl818x_iowrite8(priv, &priv->map->TX_ANTENNA, 0x03);

 rtl8225_write_phy_ofdm(dev, 0x80, 0x12);
 for (i = 0; i < ARRAY_SIZE(rtl8225z2_agc); i++) {
  rtl8225_write_phy_ofdm(dev, 0xF, rtl8225z2_agc[i]);
  rtl8225_write_phy_ofdm(dev, 0xE, 0x80 + i);
  rtl8225_write_phy_ofdm(dev, 0xE, 0);
 }
 rtl8225_write_phy_ofdm(dev, 0x80, 0x10);

 for (i = 0; i < ARRAY_SIZE(rtl8225z2_ofdm); i++)
  rtl8225_write_phy_ofdm(dev, i, rtl8225z2_ofdm[i]);

 rtl8225_write_phy_ofdm(dev, 0x97, 0x46);
 rtl8225_write_phy_ofdm(dev, 0xa4, 0xb6);
 rtl8225_write_phy_ofdm(dev, 0x85, 0xfc);
 rtl8225_write_phy_cck(dev, 0xc1, 0x88);
}

static void rtl8225_rf_stop(struct ieee80211_hw *dev)
{
 rtl8225_write(dev, 0x4, 0x1f);
}

static void rtl8225_rf_set_channel(struct ieee80211_hw *dev,
       struct ieee80211_conf *conf)
{
 struct rtl8187_priv *priv = dev->priv;
 int chan =
  ieee80211_frequency_to_channel(conf->chandef.chan->center_freq);

 if (priv->rf->init == rtl8225_rf_init)
  rtl8225_rf_set_tx_power(dev, chan);
 else if (priv->rf->init == rtl8225z2_rf_init)
  rtl8225z2_rf_set_tx_power(dev, chan);
 else
  rtl8225z2_b_rf_set_tx_power(dev, chan);

 rtl8225_write(dev, 0x7, rtl8225_chan[chan - 1]);
 msleep(10);
}

static const struct rtl818x_rf_ops rtl8225_ops = {
 .name  = "rtl8225",
 .init  = rtl8225_rf_init,
 .stop  = rtl8225_rf_stop,
 .set_chan = rtl8225_rf_set_channel
};

static const struct rtl818x_rf_ops rtl8225z2_ops = {
 .name  = "rtl8225z2",
 .init  = rtl8225z2_rf_init,
 .stop  = rtl8225_rf_stop,
 .set_chan = rtl8225_rf_set_channel
};

static const struct rtl818x_rf_ops rtl8225z2_b_ops = {
 .name  = "rtl8225z2",
 .init  = rtl8225z2_b_rf_init,
 .stop  = rtl8225_rf_stop,
 .set_chan = rtl8225_rf_set_channel
};

const struct rtl818x_rf_ops * rtl8187_detect_rf(struct ieee80211_hw *dev)
{
 u16 reg8, reg9;
 struct rtl8187_priv *priv = dev->priv;

 if (!priv->is_rtl8187b) {
  rtl8225_write(dev, 0, 0x1B7);

  reg8 = rtl8225_read(dev, 8);
  reg9 = rtl8225_read(dev, 9);

  rtl8225_write(dev, 0, 0x0B7);

  if (reg8 != 0x588 || reg9 != 0x700)
   return &rtl8225_ops;

  return &rtl8225z2_ops;
 } else
  return &rtl8225z2_b_ops;
}