drivers/staging/rtl8187se/r8180_rtl8225.c

   1 /*
   2   This is part of the rtl8180-sa2400 driver
   3   released under the GPL (See file COPYING for details).
   4   Copyright (c) 2005 Andrea Merello <andreamrl@tiscali.it>
   5
   6   This files contains programming code for the rtl8225
   7   radio frontend.
   8
   9   *Many* thanks to Realtek Corp. for their great support!
  10
  11 */
  12
  13
  14
  15 #include "r8180_hw.h"
  16 #include "r8180_rtl8225.h"
  17
  18
  19 u8 rtl8225_gain[]={
  20         0x23,0x88,0x7c,0xa5,// -82dbm
  21         0x23,0x88,0x7c,0xb5,// -82dbm
  22         0x23,0x88,0x7c,0xc5,// -82dbm
  23         0x33,0x80,0x79,0xc5,// -78dbm
  24         0x43,0x78,0x76,0xc5,// -74dbm
  25         0x53,0x60,0x73,0xc5,// -70dbm
  26         0x63,0x58,0x70,0xc5,// -66dbm
  27 };
  28
  29 u32 rtl8225_chan[] ={
  30               0,
  31                 0x0080, //ch1
  32                 0x0100, //ch2
  33                 0x0180, //ch3
  34                 0x0200, //ch4
  35                 0x0280,
  36                 0x0300,
  37                 0x0380,
  38                 0x0400,
  39                 0x0480,
  40                 0x0500,
  41                 0x0580,
  42                 0x0600,
  43                 0x0680,
  44                 0x074A, //ch14
  45 };
  46
  47 u16 rtl8225bcd_rxgain[]={
  48         0x0400, 0x0401, 0x0402, 0x0403, 0x0404, 0x0405, 0x0408, 0x0409,
  49         0x040a, 0x040b, 0x0502, 0x0503, 0x0504, 0x0505, 0x0540, 0x0541,
  50         0x0542, 0x0543, 0x0544, 0x0545, 0x0580, 0x0581, 0x0582, 0x0583,
  51         0x0584, 0x0585, 0x0588, 0x0589, 0x058a, 0x058b, 0x0643, 0x0644,
  52         0x0645, 0x0680, 0x0681, 0x0682, 0x0683, 0x0684, 0x0685, 0x0688,
  53         0x0689, 0x068a, 0x068b, 0x068c, 0x0742, 0x0743, 0x0744, 0x0745,
  54         0x0780, 0x0781, 0x0782, 0x0783, 0x0784, 0x0785, 0x0788, 0x0789,
  55         0x078a, 0x078b, 0x078c, 0x078d, 0x0790, 0x0791, 0x0792, 0x0793,
  56         0x0794, 0x0795, 0x0798, 0x0799, 0x079a, 0x079b, 0x079c, 0x079d,
  57         0x07a0, 0x07a1, 0x07a2, 0x07a3, 0x07a4, 0x07a5, 0x07a8, 0x07a9,
  58         0x07aa, 0x07ab, 0x07ac, 0x07ad, 0x07b0, 0x07b1, 0x07b2, 0x07b3,
  59         0x07b4, 0x07b5, 0x07b8, 0x07b9, 0x07ba, 0x07bb, 0x07bb
  60
  61 };
  62
  63 u8 rtl8225_agc[]={
  64         0x9e,0x9e,0x9e,0x9e,0x9e,0x9e,0x9e,0x9e,0x9d,0x9c,0x9b,0x9a,0x99,0x98,0x97,0x96,
  65         0x95,0x94,0x93,0x92,0x91,0x90,0x8f,0x8e,0x8d,0x8c,0x8b,0x8a,0x89,0x88,0x87,0x86,
  66         0x85,0x84,0x83,0x82,0x81,0x80,0x3f,0x3e,0x3d,0x3c,0x3b,0x3a,0x39,0x38,0x37,0x36,
  67         0x35,0x34,0x33,0x32,0x31,0x30,0x2f,0x2e,0x2d,0x2c,0x2b,0x2a,0x29,0x28,0x27,0x26,
  68         0x25,0x24,0x23,0x22,0x21,0x20,0x1f,0x1e,0x1d,0x1c,0x1b,0x1a,0x19,0x18,0x17,0x16,
  69         0x15,0x14,0x13,0x12,0x11,0x10,0x0f,0x0e,0x0d,0x0c,0x0b,0x0a,0x09,0x08,0x07,0x06,
  70         0x05,0x04,0x03,0x02,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
  71         0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
  72 };
  73
  74
  75 u8 rtl8225_tx_gain_cck_ofdm[]={
  76         0x02,0x06,0x0e,0x1e,0x3e,0x7e
  77 };
  78
  79
  80 u8 rtl8225_tx_power_ofdm[]={
  81         0x80,0x90,0xa2,0xb5,0xcb,0xe4
  82 };
  83
  84
  85 u8 rtl8225_tx_power_cck_ch14[]={
  86         0x18,0x17,0x15,0x0c,0x00,0x00,0x00,0x00,
  87         0x1b,0x1a,0x17,0x0e,0x00,0x00,0x00,0x00,
  88         0x1f,0x1e,0x1a,0x0f,0x00,0x00,0x00,0x00,
  89         0x22,0x21,0x1d,0x11,0x00,0x00,0x00,0x00,
  90         0x26,0x25,0x21,0x13,0x00,0x00,0x00,0x00,
  91         0x2b,0x2a,0x25,0x15,0x00,0x00,0x00,0x00
  92 };
  93
  94
  95 u8 rtl8225_tx_power_cck[]={
  96         0x18,0x17,0x15,0x11,0x0c,0x08,0x04,0x02,
  97         0x1b,0x1a,0x17,0x13,0x0e,0x09,0x04,0x02,
  98         0x1f,0x1e,0x1a,0x15,0x10,0x0a,0x05,0x02,
  99         0x22,0x21,0x1d,0x18,0x11,0x0b,0x06,0x02,
 100         0x26,0x25,0x21,0x1b,0x14,0x0d,0x06,0x03,
 101         0x2b,0x2a,0x25,0x1e,0x16,0x0e,0x07,0x03
 102 };
 103
 104
 105 void rtl8225_set_gain(struct net_device *dev, short gain)
 106 {
 107         write_phy_ofdm(dev, 0x0d, rtl8225_gain[gain * 4]);
 108         write_phy_ofdm(dev, 0x23, rtl8225_gain[gain * 4 + 1]);
 109         write_phy_ofdm(dev, 0x1b, rtl8225_gain[gain * 4 + 2]);
 110         write_phy_ofdm(dev, 0x1d, rtl8225_gain[gain * 4 + 3]);
 111 }
 112
 113 void write_rtl8225(struct net_device *dev, u8 adr, u16 data)
 114 {
 115         int i;
 116         u16 out,select;
 117         u8 bit;
 118         u32 bangdata = (data << 4) | (adr & 0xf);
 119         struct r8180_priv *priv = ieee80211_priv(dev);
 120
 121         out = read_nic_word(dev, RFPinsOutput) & 0xfff3;
 122
 123         write_nic_word(dev,RFPinsEnable,
 124                 (read_nic_word(dev,RFPinsEnable) | 0x7));
 125
 126         select = read_nic_word(dev, RFPinsSelect);
 127
 128         write_nic_word(dev, RFPinsSelect, select | 0x7 |
 129                 ((priv->card_type == USB) ? 0 : SW_CONTROL_GPIO));
 130
 131         force_pci_posting(dev);
 132         udelay(10);
 133
 134         write_nic_word(dev, RFPinsOutput, out | BB_HOST_BANG_EN );//| 0x1fff);
 135
 136         force_pci_posting(dev);
 137         udelay(2);
 138
 139         write_nic_word(dev, RFPinsOutput, out);
 140
 141         force_pci_posting(dev);
 142         udelay(10);
 143
 144
 145         for(i=15; i>=0;i--){
 146
 147                 bit = (bangdata & (1<<i)) >> i;
 148
 149                 write_nic_word(dev, RFPinsOutput, bit | out);
 150
 151                 write_nic_word(dev, RFPinsOutput, bit | out | BB_HOST_BANG_CLK);
 152                 write_nic_word(dev, RFPinsOutput, bit | out | BB_HOST_BANG_CLK);
 153
 154                 i--;
 155                 bit = (bangdata & (1<<i)) >> i;
 156
 157                 write_nic_word(dev, RFPinsOutput, bit | out | BB_HOST_BANG_CLK);
 158                 write_nic_word(dev, RFPinsOutput, bit | out | BB_HOST_BANG_CLK);
 159
 160                 write_nic_word(dev, RFPinsOutput, bit | out);
 161
 162         }
 163
 164         write_nic_word(dev, RFPinsOutput, out | BB_HOST_BANG_EN);
 165
 166         force_pci_posting(dev);
 167         udelay(10);
 168
 169         write_nic_word(dev, RFPinsOutput, out |
 170                 ((priv->card_type == USB) ? 4 : BB_HOST_BANG_EN));
 171
 172         write_nic_word(dev, RFPinsSelect, select |
 173                 ((priv->card_type == USB) ? 0 : SW_CONTROL_GPIO));
 174
 175         if(priv->card_type == USB)
 176                 mdelay(2);
 177         else
 178                 rtl8185_rf_pins_enable(dev);
 179 }
 180
 181 void rtl8225_SetTXPowerLevel(struct net_device *dev, short ch)
 182 {
 183         struct r8180_priv *priv = ieee80211_priv(dev);
 184
 185         int GainIdx;
 186         int GainSetting;
 187         int i;
 188         u8 power;
 189         u8 *cck_power_table;
 190         u8 max_cck_power_level;
 191         u8 max_ofdm_power_level;
 192         u8 min_ofdm_power_level;
 193         u8 cck_power_level = 0xff & priv->chtxpwr[ch];
 194         u8 ofdm_power_level = 0xff & priv->chtxpwr_ofdm[ch];
 195
 196         if(priv->card_type == USB){
 197                 max_cck_power_level = 11;
 198                 max_ofdm_power_level = 25; //  12 -> 25
 199                 min_ofdm_power_level = 10;
 200         }else{
 201                 max_cck_power_level = 35;
 202                 max_ofdm_power_level = 35;
 203                 min_ofdm_power_level = 0;
 204         }
 205         /* CCK power setting */
 206         if(cck_power_level > max_cck_power_level)
 207                 cck_power_level = max_cck_power_level;
 208         GainIdx=cck_power_level % 6;
 209         GainSetting=cck_power_level / 6;
 210
 211         if(ch == 14)
 212                 cck_power_table = rtl8225_tx_power_cck_ch14;
 213         else
 214                 cck_power_table = rtl8225_tx_power_cck;
 215
 216 //      if(priv->card_8185 == 1 && priv->card_8185_Bversion ){
 217                 /*Ver B*/
 218 //              write_nic_byte(dev, TX_GAIN_CCK, rtl8225_tx_gain_cck_ofdm[GainSetting]);
 219 //      }else{
 220                 /*Ver C - D */
 221         write_nic_byte(dev, TX_GAIN_CCK, rtl8225_tx_gain_cck_ofdm[GainSetting]>>1);
 222 //      }
 223
 224         for(i=0;i<8;i++){
 225
 226                 power = cck_power_table[GainIdx * 8 + i];
 227                 write_phy_cck(dev, 0x44 + i, power);
 228         }
 229
 230         /* FIXME Is this delay really needeed ? */
 231         force_pci_posting(dev);
 232         mdelay(1);
 233
 234         /* OFDM power setting */
 235 //  Old:
 236 //      if(ofdm_power_level > max_ofdm_power_level)
 237 //              ofdm_power_level = 35;
 238 //      ofdm_power_level += min_ofdm_power_level;
 239 //  Latest:
 240         if(ofdm_power_level > (max_ofdm_power_level - min_ofdm_power_level))
 241                 ofdm_power_level = max_ofdm_power_level;
 242         else
 243                 ofdm_power_level += min_ofdm_power_level;
 244         if(ofdm_power_level > 35)
 245                 ofdm_power_level = 35;
 246 //
 247
 248         GainIdx=ofdm_power_level % 6;
 249         GainSetting=ofdm_power_level / 6;
 250 #if 1
 251 //      if(priv->card_type == USB){
 252                 rtl8185_set_anaparam2(dev,RTL8225_ANAPARAM2_ON);
 253
 254                 write_phy_ofdm(dev,2,0x42);
 255                 write_phy_ofdm(dev,6,0);
 256                 write_phy_ofdm(dev,8,0);
 257 //      }
 258 #endif
 259 //      if(priv->card_8185 == 1 && priv->card_8185_Bversion){
 260 //              /*Ver B*/
 261 //              write_nic_byte(dev, TX_GAIN_OFDM, rtl8225_tx_gain_cck_ofdm[GainSetting]);
 262 //      }else{
 263                 /*Ver C - D */
 264         write_nic_byte(dev, TX_GAIN_OFDM, rtl8225_tx_gain_cck_ofdm[GainSetting]>>1);
 265 //      }
 266
 267
 268         power = rtl8225_tx_power_ofdm[GainIdx];
 269
 270         write_phy_ofdm(dev, 0x5, power);
 271         write_phy_ofdm(dev, 0x7, power);
 272
 273         force_pci_posting(dev);
 274         mdelay(1);
 275         //write_nic_byte(dev, TX_AGC_CONTROL,4);
 276 }
 277
 278 void rtl8225_rf_set_chan(struct net_device *dev, short ch)
 279 {
 280         struct r8180_priv *priv = ieee80211_priv(dev);
 281         short gset = (priv->ieee80211->state == IEEE80211_LINKED &&
 282                 ieee80211_is_54g(priv->ieee80211->current_network)) ||
 283                 priv->ieee80211->iw_mode == IW_MODE_MONITOR;
 284
 285         rtl8225_SetTXPowerLevel(dev, ch);
 286
 287         write_rtl8225(dev, 0x7, rtl8225_chan[ch]);
 288
 289         force_pci_posting(dev);
 290         mdelay(10);
 291
 292         // A mode sifs 0x44, difs 34-14, slot 9, eifs 23, cwm 3, cwM 7, ctstoself 0x10
 293         if(gset){
 294                 write_nic_byte(dev,SIFS,0x22);// SIFS: 0x22
 295                 write_nic_byte(dev,DIFS,0x14); //DIFS: 20
 296                 //write_nic_byte(dev,DIFS,20); //DIFS: 20
 297         }else{
 298                 write_nic_byte(dev,SIFS,0x44);// SIFS: 0x22
 299                 write_nic_byte(dev,DIFS,50 - 14); //DIFS: 36
 300         }
 301         if(priv->ieee80211->state == IEEE80211_LINKED &&
 302                 ieee80211_is_shortslot(priv->ieee80211->current_network))
 303                 write_nic_byte(dev,SLOT,0x9); //SLOT: 9
 304
 305         else
 306                 write_nic_byte(dev,SLOT,0x14); //SLOT: 20 (0x14)
 307
 308
 309         if(gset){
 310                 write_nic_byte(dev,EIFS,81);//91 - 20); // EIFS: 91 (0x5B)
 311                 write_nic_byte(dev,CW_VAL,0x73); //CW VALUE: 0x37
 312                 //DMESG("using G net params");
 313         }else{
 314                 write_nic_byte(dev,EIFS,81); // EIFS: 91 (0x5B)
 315                 write_nic_byte(dev,CW_VAL,0xa5); //CW VALUE: 0x37
 316                 //DMESG("using B net params");
 317         }
 318
 319
 320 }
 321
 322 void rtl8225_host_pci_init(struct net_device *dev)
 323 {
 324         write_nic_word(dev, RFPinsOutput, 0x480);
 325
 326         rtl8185_rf_pins_enable(dev);
 327
 328         //if(priv->card_8185 == 2 && priv->enable_gpio0 ) /* version D */
 329         //write_nic_word(dev, RFPinsSelect, 0x88);
 330         //else
 331         write_nic_word(dev, RFPinsSelect, 0x88 | SW_CONTROL_GPIO); /* 0x488 | SW_CONTROL_GPIO */
 332
 333         write_nic_byte(dev, GP_ENABLE, 0);
 334
 335         force_pci_posting(dev);
 336         mdelay(200);
 337
 338         write_nic_word(dev, GP_ENABLE, 0xff & (~(1<<6))); /* bit 6 is for RF on/off detection */
 339
 340
 341 }
 342
 343 void rtl8225_host_usb_init(struct net_device *dev)
 344 {
 345 }