diff options
Diffstat (limited to 'drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225se.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225se.c | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225se.c b/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225se.c new file mode 100644 index 0000000000..e1bf41c278 --- /dev/null +++ b/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225se.c @@ -0,0 +1,430 @@ +// SPDX-License-Identifier: GPL-2.0-only + +/* Radio tuning for RTL8225 on RTL8187SE + * + * Copyright 2009 Larry Finger <Larry.Finger@lwfinger.net> + * Copyright 2014 Andrea Merello <andrea.merello@gmail.com> + * + * Based on the r8180 and Realtek r8187se drivers, which are: + * Copyright 2004-2005 Andrea Merello <andrea.merello@gmail.com>, et al. + * + * Also based on the rtl8187 driver, which is: + * Copyright 2007 Michael Wu <flamingice@sourmilk.net> + * Copyright 2007 Andrea Merello <andrea.merello@gmail.com> + */ + +#include <net/mac80211.h> + +#include "rtl8180.h" +#include "rtl8225se.h" + +#define PFX "rtl8225 (se) " + +static const u32 RF_GAIN_TABLE[] = { + 0x0096, 0x0076, 0x0056, 0x0036, 0x0016, 0x01f6, 0x01d6, 0x01b6, + 0x0196, 0x0176, 0x00F7, 0x00D7, 0x00B7, 0x0097, 0x0077, 0x0057, + 0x0037, 0x00FB, 0x00DB, 0x00BB, 0x00FF, 0x00E3, 0x00C3, 0x00A3, + 0x0083, 0x0063, 0x0043, 0x0023, 0x0003, 0x01E3, 0x01C3, 0x01A3, + 0x0183, 0x0163, 0x0143, 0x0123, 0x0103 +}; + +static const u8 cck_ofdm_gain_settings[] = { + 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 const u32 rtl8225se_chan[] = { + 0x0080, 0x0100, 0x0180, 0x0200, 0x0280, 0x0300, 0x0380, + 0x0400, 0x0480, 0x0500, 0x0580, 0x0600, 0x0680, 0x074A, +}; + +static const u8 ZEBRA_AGC[] = { + 0x7E, 0x7E, 0x7E, 0x7E, 0x7D, 0x7C, 0x7B, 0x7A, + 0x79, 0x78, 0x77, 0x76, 0x75, 0x74, 0x73, 0x72, + 0x71, 0x70, 0x6F, 0x6E, 0x6D, 0x6C, 0x6B, 0x6A, + 0x69, 0x68, 0x67, 0x66, 0x65, 0x64, 0x63, 0x62, + 0x48, 0x47, 0x46, 0x45, 0x44, 0x29, 0x28, 0x27, + 0x26, 0x25, 0x24, 0x23, 0x22, 0x21, 0x08, 0x07, + 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, + 0x0f, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x15, 0x16, + 0x17, 0x17, 0x18, 0x18, 0x19, 0x1a, 0x1a, 0x1b, + 0x1b, 0x1c, 0x1c, 0x1d, 0x1d, 0x1d, 0x1e, 0x1e, + 0x1f, 0x1f, 0x1f, 0x20, 0x20, 0x20, 0x20, 0x21, + 0x21, 0x21, 0x22, 0x22, 0x22, 0x23, 0x23, 0x24, + 0x24, 0x25, 0x25, 0x25, 0x26, 0x26, 0x27, 0x27, + 0x2F, 0x2F, 0x2F, 0x2F, 0x2F, 0x2F, 0x2F, 0x2F +}; + +static const u8 OFDM_CONFIG[] = { + 0x10, 0x0F, 0x0A, 0x0C, 0x14, 0xFA, 0xFF, 0x50, + 0x00, 0x50, 0x00, 0x00, 0x00, 0x5C, 0x00, 0x00, + 0x40, 0x00, 0x40, 0x00, 0x00, 0x00, 0xA8, 0x26, + 0x32, 0x33, 0x06, 0xA5, 0x6F, 0x55, 0xC8, 0xBB, + 0x0A, 0xE1, 0x2C, 0x4A, 0x86, 0x83, 0x34, 0x00, + 0x4F, 0x24, 0x6F, 0xC2, 0x03, 0x40, 0x80, 0x00, + 0xC0, 0xC1, 0x58, 0xF1, 0x00, 0xC4, 0x90, 0x3e, + 0xD8, 0x3C, 0x7B, 0x10, 0x10 +}; + +static void rtl8187se_three_wire_io(struct ieee80211_hw *dev, u8 *data, + u8 len, bool write) +{ + struct rtl8180_priv *priv = dev->priv; + int i; + u8 tmp; + + do { + for (i = 0; i < 5; i++) { + tmp = rtl818x_ioread8(priv, SW_3W_CMD1); + if (!(tmp & 0x3)) + break; + udelay(10); + } + if (i == 5) + wiphy_err(dev->wiphy, PFX + "CmdReg: 0x%x RE/WE bits aren't clear\n", tmp); + + tmp = rtl818x_ioread8(priv, &priv->map->rf_sw_config) | 0x02; + rtl818x_iowrite8(priv, &priv->map->rf_sw_config, tmp); + + tmp = rtl818x_ioread8(priv, REG_ADDR1(0x84)) & 0xF7; + rtl818x_iowrite8(priv, REG_ADDR1(0x84), tmp); + if (write) { + if (len == 16) { + rtl818x_iowrite16(priv, SW_3W_DB0, + *(u16 *)data); + } else if (len == 64) { + rtl818x_iowrite32(priv, SW_3W_DB0_4, + *((u32 *)data)); + rtl818x_iowrite32(priv, SW_3W_DB1_4, + *((u32 *)(data + 4))); + } else + wiphy_err(dev->wiphy, PFX + "Unimplemented length\n"); + } else { + rtl818x_iowrite16(priv, SW_3W_DB0, *(u16 *)data); + } + if (write) + tmp = 2; + else + tmp = 1; + rtl818x_iowrite8(priv, SW_3W_CMD1, tmp); + for (i = 0; i < 5; i++) { + tmp = rtl818x_ioread8(priv, SW_3W_CMD1); + if (!(tmp & 0x3)) + break; + udelay(10); + } + rtl818x_iowrite8(priv, SW_3W_CMD1, 0); + if (!write) { + *((u16 *)data) = rtl818x_ioread16(priv, SI_DATA_REG); + *((u16 *)data) &= 0x0FFF; + } + } while (0); +} + +static u32 rtl8187se_rf_readreg(struct ieee80211_hw *dev, u8 addr) +{ + u32 dataread = addr & 0x0F; + rtl8187se_three_wire_io(dev, (u8 *)&dataread, 16, 0); + return dataread; +} + +static void rtl8187se_rf_writereg(struct ieee80211_hw *dev, u8 addr, u32 data) +{ + u32 outdata = (data << 4) | (u32)(addr & 0x0F); + rtl8187se_three_wire_io(dev, (u8 *)&outdata, 16, 1); +} + + +static void rtl8225se_write_zebra_agc(struct ieee80211_hw *dev) +{ + int i; + + for (i = 0; i < 128; i++) { + rtl8225se_write_phy_ofdm(dev, 0xF, ZEBRA_AGC[i]); + rtl8225se_write_phy_ofdm(dev, 0xE, i+0x80); + rtl8225se_write_phy_ofdm(dev, 0xE, 0); + } +} + +static void rtl8187se_write_ofdm_config(struct ieee80211_hw *dev) +{ + /* write OFDM_CONFIG table */ + int i; + + for (i = 0; i < 60; i++) + rtl8225se_write_phy_ofdm(dev, i, OFDM_CONFIG[i]); + +} + +static void rtl8225sez2_rf_set_tx_power(struct ieee80211_hw *dev, int channel) +{ + struct rtl8180_priv *priv = dev->priv; + u8 cck_power, ofdm_power; + + cck_power = priv->channels[channel - 1].hw_value & 0xFF; + if (cck_power > 35) + cck_power = 35; + rtl818x_iowrite8(priv, &priv->map->TX_GAIN_CCK, + cck_ofdm_gain_settings[cck_power]); + + usleep_range(1000, 5000); + ofdm_power = priv->channels[channel - 1].hw_value >> 8; + if (ofdm_power > 35) + ofdm_power = 35; + + rtl818x_iowrite8(priv, &priv->map->TX_GAIN_OFDM, + cck_ofdm_gain_settings[ofdm_power]); + if (ofdm_power < 12) { + rtl8225se_write_phy_ofdm(dev, 7, 0x5C); + rtl8225se_write_phy_ofdm(dev, 9, 0x5C); + } + if (ofdm_power < 18) { + rtl8225se_write_phy_ofdm(dev, 7, 0x54); + rtl8225se_write_phy_ofdm(dev, 9, 0x54); + } else { + rtl8225se_write_phy_ofdm(dev, 7, 0x50); + rtl8225se_write_phy_ofdm(dev, 9, 0x50); + } + + usleep_range(1000, 5000); +} + +static void rtl8187se_write_rf_gain(struct ieee80211_hw *dev) +{ + int i; + + for (i = 0; i <= 36; i++) { + rtl8187se_rf_writereg(dev, 0x01, i); mdelay(1); + rtl8187se_rf_writereg(dev, 0x02, RF_GAIN_TABLE[i]); mdelay(1); + } +} + +static void rtl8187se_write_initial_gain(struct ieee80211_hw *dev, + int init_gain) +{ + switch (init_gain) { + default: + rtl8225se_write_phy_ofdm(dev, 0x17, 0x26); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x24, 0x86); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x05, 0xFA); mdelay(1); + break; + case 2: + rtl8225se_write_phy_ofdm(dev, 0x17, 0x36); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x24, 0x86); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x05, 0xFA); mdelay(1); + break; + case 3: + rtl8225se_write_phy_ofdm(dev, 0x17, 0x36); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x24, 0x86); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x05, 0xFB); mdelay(1); + break; + case 4: + rtl8225se_write_phy_ofdm(dev, 0x17, 0x46); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x24, 0x86); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x05, 0xFB); mdelay(1); + break; + case 5: + rtl8225se_write_phy_ofdm(dev, 0x17, 0x46); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x24, 0x96); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x05, 0xFB); mdelay(1); + break; + case 6: + rtl8225se_write_phy_ofdm(dev, 0x17, 0x56); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x24, 0x96); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x05, 0xFC); mdelay(1); + break; + case 7: + rtl8225se_write_phy_ofdm(dev, 0x17, 0x56); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x24, 0xA6); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x05, 0xFC); mdelay(1); + break; + case 8: + rtl8225se_write_phy_ofdm(dev, 0x17, 0x66); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x24, 0xB6); mdelay(1); + rtl8225se_write_phy_ofdm(dev, 0x05, 0xFC); mdelay(1); + break; + } +} + +void rtl8225se_rf_init(struct ieee80211_hw *dev) +{ + struct rtl8180_priv *priv = dev->priv; + u32 rf23, rf24; + u8 d_cut = 0; + u8 tmp; + + /* Page 1 */ + rtl8187se_rf_writereg(dev, 0x00, 0x013F); mdelay(1); + rf23 = rtl8187se_rf_readreg(dev, 0x08); mdelay(1); + rf24 = rtl8187se_rf_readreg(dev, 0x09); mdelay(1); + if (rf23 == 0x0818 && rf24 == 0x070C) + d_cut = 1; + + wiphy_info(dev->wiphy, "RTL8225-SE version %s\n", + d_cut ? "D" : "not-D"); + + /* Page 0: reg 0 - 15 */ + rtl8187se_rf_writereg(dev, 0x00, 0x009F); mdelay(1); + rtl8187se_rf_writereg(dev, 0x01, 0x06E0); mdelay(1); + rtl8187se_rf_writereg(dev, 0x02, 0x004D); mdelay(1); + rtl8187se_rf_writereg(dev, 0x03, 0x07F1); mdelay(1); + rtl8187se_rf_writereg(dev, 0x04, 0x0975); mdelay(1); + rtl8187se_rf_writereg(dev, 0x05, 0x0C72); mdelay(1); + rtl8187se_rf_writereg(dev, 0x06, 0x0AE6); mdelay(1); + rtl8187se_rf_writereg(dev, 0x07, 0x00CA); mdelay(1); + rtl8187se_rf_writereg(dev, 0x08, 0x0E1C); mdelay(1); + rtl8187se_rf_writereg(dev, 0x09, 0x02F0); mdelay(1); + rtl8187se_rf_writereg(dev, 0x0A, 0x09D0); mdelay(1); + rtl8187se_rf_writereg(dev, 0x0B, 0x01BA); mdelay(1); + rtl8187se_rf_writereg(dev, 0x0C, 0x0640); mdelay(1); + rtl8187se_rf_writereg(dev, 0x0D, 0x08DF); mdelay(1); + rtl8187se_rf_writereg(dev, 0x0E, 0x0020); mdelay(1); + rtl8187se_rf_writereg(dev, 0x0F, 0x0990); mdelay(1); + /* page 1: reg 16-30 */ + rtl8187se_rf_writereg(dev, 0x00, 0x013F); mdelay(1); + rtl8187se_rf_writereg(dev, 0x03, 0x0806); mdelay(1); + rtl8187se_rf_writereg(dev, 0x04, 0x03A7); mdelay(1); + rtl8187se_rf_writereg(dev, 0x05, 0x059B); mdelay(1); + rtl8187se_rf_writereg(dev, 0x06, 0x0081); mdelay(1); + rtl8187se_rf_writereg(dev, 0x07, 0x01A0); mdelay(1); + rtl8187se_rf_writereg(dev, 0x0A, 0x0001); mdelay(1); + rtl8187se_rf_writereg(dev, 0x0B, 0x0418); mdelay(1); + rtl8187se_rf_writereg(dev, 0x0C, 0x0FBE); mdelay(1); + rtl8187se_rf_writereg(dev, 0x0D, 0x0008); mdelay(1); + if (d_cut) + rtl8187se_rf_writereg(dev, 0x0E, 0x0807); + else + rtl8187se_rf_writereg(dev, 0x0E, 0x0806); + mdelay(1); + rtl8187se_rf_writereg(dev, 0x0F, 0x0ACC); mdelay(1); + rtl8187se_rf_writereg(dev, 0x00, 0x01D7); mdelay(1); + rtl8187se_rf_writereg(dev, 0x03, 0x0E00); mdelay(1); + rtl8187se_rf_writereg(dev, 0x04, 0x0E50); mdelay(1); + + rtl8187se_write_rf_gain(dev); + + rtl8187se_rf_writereg(dev, 0x05, 0x0203); mdelay(1); + rtl8187se_rf_writereg(dev, 0x06, 0x0200); mdelay(1); + rtl8187se_rf_writereg(dev, 0x00, 0x0137); mdelay(11); + rtl8187se_rf_writereg(dev, 0x0D, 0x0008); mdelay(11); + rtl8187se_rf_writereg(dev, 0x00, 0x0037); mdelay(11); + rtl8187se_rf_writereg(dev, 0x04, 0x0160); mdelay(11); + rtl8187se_rf_writereg(dev, 0x07, 0x0080); mdelay(11); + rtl8187se_rf_writereg(dev, 0x02, 0x088D); msleep(221); + rtl8187se_rf_writereg(dev, 0x00, 0x0137); mdelay(11); + rtl8187se_rf_writereg(dev, 0x07, 0x0000); mdelay(1); + rtl8187se_rf_writereg(dev, 0x07, 0x0180); mdelay(1); + rtl8187se_rf_writereg(dev, 0x07, 0x0220); mdelay(1); + rtl8187se_rf_writereg(dev, 0x07, 0x03E0); mdelay(1); + rtl8187se_rf_writereg(dev, 0x06, 0x00C1); mdelay(1); + rtl8187se_rf_writereg(dev, 0x0A, 0x0001); mdelay(1); + if (priv->xtal_cal) { + tmp = (priv->xtal_in << 4) | (priv->xtal_out << 1) | + (1 << 11) | (1 << 9); + rtl8187se_rf_writereg(dev, 0x0F, tmp); + wiphy_info(dev->wiphy, "Xtal cal\n"); + mdelay(1); + } else { + wiphy_info(dev->wiphy, "NO Xtal cal\n"); + rtl8187se_rf_writereg(dev, 0x0F, 0x0ACC); + mdelay(1); + } + /* page 0 */ + rtl8187se_rf_writereg(dev, 0x00, 0x00BF); mdelay(1); + rtl8187se_rf_writereg(dev, 0x0D, 0x08DF); mdelay(1); + rtl8187se_rf_writereg(dev, 0x02, 0x004D); mdelay(1); + rtl8187se_rf_writereg(dev, 0x04, 0x0975); msleep(31); + rtl8187se_rf_writereg(dev, 0x00, 0x0197); mdelay(1); + rtl8187se_rf_writereg(dev, 0x05, 0x05AB); mdelay(1); + + rtl8187se_rf_writereg(dev, 0x00, 0x009F); mdelay(1); + rtl8187se_rf_writereg(dev, 0x01, 0x0000); mdelay(1); + rtl8187se_rf_writereg(dev, 0x02, 0x0000); mdelay(1); + /* power save parameters */ + /* TODO: move to dev.c */ + rtl818x_iowrite8(priv, REG_ADDR1(0x024E), + rtl818x_ioread8(priv, REG_ADDR1(0x24E)) & 0x9F); + rtl8225se_write_phy_cck(dev, 0x00, 0xC8); + rtl8225se_write_phy_cck(dev, 0x06, 0x1C); + rtl8225se_write_phy_cck(dev, 0x10, 0x78); + rtl8225se_write_phy_cck(dev, 0x2E, 0xD0); + rtl8225se_write_phy_cck(dev, 0x2F, 0x06); + rtl8225se_write_phy_cck(dev, 0x01, 0x46); + + /* power control */ + rtl818x_iowrite8(priv, &priv->map->TX_GAIN_CCK, 0x10); + rtl818x_iowrite8(priv, &priv->map->TX_GAIN_OFDM, 0x1B); + + rtl818x_iowrite8(priv, &priv->map->TX_ANTENNA, 0x03); + rtl8225se_write_phy_ofdm(dev, 0x00, 0x12); + + rtl8225se_write_zebra_agc(dev); + + rtl8225se_write_phy_ofdm(dev, 0x10, 0x00); + + rtl8187se_write_ofdm_config(dev); + + /* turn on RF */ + rtl8187se_rf_writereg(dev, 0x00, 0x009F); udelay(500); + rtl8187se_rf_writereg(dev, 0x04, 0x0972); udelay(500); + /* turn on RF again */ + rtl8187se_rf_writereg(dev, 0x00, 0x009F); udelay(500); + rtl8187se_rf_writereg(dev, 0x04, 0x0972); udelay(500); + /* turn on BB */ + rtl8225se_write_phy_ofdm(dev, 0x10, 0x40); + rtl8225se_write_phy_ofdm(dev, 0x12, 0x40); + + rtl8187se_write_initial_gain(dev, 4); +} + +void rtl8225se_rf_stop(struct ieee80211_hw *dev) +{ + /* checked for 8187se */ + struct rtl8180_priv *priv = dev->priv; + + /* turn off BB RXIQ matrix to cut off rx signal */ + rtl8225se_write_phy_ofdm(dev, 0x10, 0x00); + rtl8225se_write_phy_ofdm(dev, 0x12, 0x00); + /* turn off RF */ + rtl8187se_rf_writereg(dev, 0x04, 0x0000); + rtl8187se_rf_writereg(dev, 0x00, 0x0000); + + usleep_range(1000, 5000); + /* turn off A/D and D/A */ + rtl8180_set_anaparam(priv, RTL8225SE_ANAPARAM_OFF); + rtl8180_set_anaparam2(priv, RTL8225SE_ANAPARAM2_OFF); +} + +void rtl8225se_rf_set_channel(struct ieee80211_hw *dev, + struct ieee80211_conf *conf) +{ + int chan = + ieee80211_frequency_to_channel(conf->chandef.chan->center_freq); + + rtl8225sez2_rf_set_tx_power(dev, chan); + rtl8187se_rf_writereg(dev, 0x7, rtl8225se_chan[chan - 1]); + if ((rtl8187se_rf_readreg(dev, 0x7) & 0x0F80) != + rtl8225se_chan[chan - 1]) + rtl8187se_rf_writereg(dev, 0x7, rtl8225se_chan[chan - 1]); + usleep_range(10000, 20000); +} + +static const struct rtl818x_rf_ops rtl8225se_ops = { + .name = "rtl8225-se", + .init = rtl8225se_rf_init, + .stop = rtl8225se_rf_stop, + .set_chan = rtl8225se_rf_set_channel, +}; + +const struct rtl818x_rf_ops *rtl8187se_detect_rf(struct ieee80211_hw *dev) +{ + return &rtl8225se_ops; +} |