drivers/net/wireless/zd1211rw/zd_rf_al2230.c

   1 /* zd_rf_al2230.c: Functions for the AL2230 RF controller
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  16  */
  17
  18 #include <linux/kernel.h>
  19
  20 #include "zd_rf.h"
  21 #include "zd_usb.h"
  22 #include "zd_chip.h"
  23
  24 static const u32 zd1211_al2230_table[][3] = {
  25         RF_CHANNEL( 1) = { 0x03f790, 0x033331, 0x00000d, },
  26         RF_CHANNEL( 2) = { 0x03f790, 0x0b3331, 0x00000d, },
  27         RF_CHANNEL( 3) = { 0x03e790, 0x033331, 0x00000d, },
  28         RF_CHANNEL( 4) = { 0x03e790, 0x0b3331, 0x00000d, },
  29         RF_CHANNEL( 5) = { 0x03f7a0, 0x033331, 0x00000d, },
  30         RF_CHANNEL( 6) = { 0x03f7a0, 0x0b3331, 0x00000d, },
  31         RF_CHANNEL( 7) = { 0x03e7a0, 0x033331, 0x00000d, },
  32         RF_CHANNEL( 8) = { 0x03e7a0, 0x0b3331, 0x00000d, },
  33         RF_CHANNEL( 9) = { 0x03f7b0, 0x033331, 0x00000d, },
  34         RF_CHANNEL(10) = { 0x03f7b0, 0x0b3331, 0x00000d, },
  35         RF_CHANNEL(11) = { 0x03e7b0, 0x033331, 0x00000d, },
  36         RF_CHANNEL(12) = { 0x03e7b0, 0x0b3331, 0x00000d, },
  37         RF_CHANNEL(13) = { 0x03f7c0, 0x033331, 0x00000d, },
  38         RF_CHANNEL(14) = { 0x03e7c0, 0x066661, 0x00000d, },
  39 };
  40
  41 static const u32 zd1211b_al2230_table[][3] = {
  42         RF_CHANNEL( 1) = { 0x09efc0, 0x8cccc0, 0xb00000, },
  43         RF_CHANNEL( 2) = { 0x09efc0, 0x8cccd0, 0xb00000, },
  44         RF_CHANNEL( 3) = { 0x09e7c0, 0x8cccc0, 0xb00000, },
  45         RF_CHANNEL( 4) = { 0x09e7c0, 0x8cccd0, 0xb00000, },
  46         RF_CHANNEL( 5) = { 0x05efc0, 0x8cccc0, 0xb00000, },
  47         RF_CHANNEL( 6) = { 0x05efc0, 0x8cccd0, 0xb00000, },
  48         RF_CHANNEL( 7) = { 0x05e7c0, 0x8cccc0, 0xb00000, },
  49         RF_CHANNEL( 8) = { 0x05e7c0, 0x8cccd0, 0xb00000, },
  50         RF_CHANNEL( 9) = { 0x0defc0, 0x8cccc0, 0xb00000, },
  51         RF_CHANNEL(10) = { 0x0defc0, 0x8cccd0, 0xb00000, },
  52         RF_CHANNEL(11) = { 0x0de7c0, 0x8cccc0, 0xb00000, },
  53         RF_CHANNEL(12) = { 0x0de7c0, 0x8cccd0, 0xb00000, },
  54         RF_CHANNEL(13) = { 0x03efc0, 0x8cccc0, 0xb00000, },
  55         RF_CHANNEL(14) = { 0x03e7c0, 0x866660, 0xb00000, },
  56 };
  57
  58 static const struct zd_ioreq16 zd1211b_ioreqs_shared_1[] = {
  59         { CR240, 0x57 }, { CR9,   0xe0 },
  60 };
  61
  62 static int zd1211b_al2230_finalize_rf(struct zd_chip *chip)
  63 {
  64         int r;
  65         static const struct zd_ioreq16 ioreqs[] = {
  66                 { CR80,  0x30 }, { CR81,  0x30 }, { CR79,  0x58 },
  67                 { CR12,  0xf0 }, { CR77,  0x1b }, { CR78,  0x58 },
  68                 { CR203, 0x06 },
  69                 { },
  70
  71                 { CR240, 0x80 },
  72         };
  73
  74         r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
  75         if (r)
  76                 return r;
  77
  78         /* related to antenna selection? */
  79         if (chip->new_phy_layout) {
  80                 r = zd_iowrite16_locked(chip, 0xe1, CR9);
  81                 if (r)
  82                         return r;
  83         }
  84
  85         return zd_iowrite16_locked(chip, 0x06, CR203);
  86 }
  87
  88 static int zd1211_al2230_init_hw(struct zd_rf *rf)
  89 {
  90         int r;
  91         struct zd_chip *chip = zd_rf_to_chip(rf);
  92
  93         static const struct zd_ioreq16 ioreqs[] = {
  94                 { CR15,   0x20 }, { CR23,   0x40 }, { CR24,  0x20 },
  95                 { CR26,   0x11 }, { CR28,   0x3e }, { CR29,  0x00 },
  96                 { CR44,   0x33 }, { CR106,  0x2a }, { CR107, 0x1a },
  97                 { CR109,  0x09 }, { CR110,  0x27 }, { CR111, 0x2b },
  98                 { CR112,  0x2b }, { CR119,  0x0a }, { CR10,  0x89 },
  99                 /* for newest (3rd cut) AL2300 */
 100                 { CR17,   0x28 },
 101                 { CR26,   0x93 }, { CR34,   0x30 },
 102                 /* for newest (3rd cut) AL2300 */
 103                 { CR35,   0x3e },
 104                 { CR41,   0x24 }, { CR44,   0x32 },
 105                 /* for newest (3rd cut) AL2300 */
 106                 { CR46,   0x96 },
 107                 { CR47,   0x1e }, { CR79,   0x58 }, { CR80,  0x30 },
 108                 { CR81,   0x30 }, { CR87,   0x0a }, { CR89,  0x04 },
 109                 { CR92,   0x0a }, { CR99,   0x28 }, { CR100, 0x00 },
 110                 { CR101,  0x13 }, { CR102,  0x27 }, { CR106, 0x24 },
 111                 { CR107,  0x2a }, { CR109,  0x09 }, { CR110, 0x13 },
 112                 { CR111,  0x1f }, { CR112,  0x1f }, { CR113, 0x27 },
 113                 { CR114,  0x27 },
 114                 /* for newest (3rd cut) AL2300 */
 115                 { CR115,  0x24 },
 116                 { CR116,  0x24 }, { CR117,  0xf4 }, { CR118, 0xfc },
 117                 { CR119,  0x10 }, { CR120,  0x4f }, { CR121, 0x77 },
 118                 { CR122,  0xe0 }, { CR137,  0x88 }, { CR252, 0xff },
 119                 { CR253,  0xff },
 120
 121                 /* These following happen separately in the vendor driver */
 122                 { },
 123
 124                 /* shdnb(PLL_ON)=0 */
 125                 { CR251,  0x2f },
 126                 /* shdnb(PLL_ON)=1 */
 127                 { CR251,  0x3f },
 128                 { CR138,  0x28 }, { CR203,  0x06 },
 129         };
 130
 131         static const u32 rv[] = {
 132                 /* Channel 1 */
 133                 0x03f790,
 134                 0x033331,
 135                 0x00000d,
 136
 137                 0x0b3331,
 138                 0x03b812,
 139                 0x00fff3,
 140                 0x000da4,
 141                 0x0f4dc5, /* fix freq shift, 0x04edc5 */
 142                 0x0805b6,
 143                 0x011687,
 144                 0x000688,
 145                 0x0403b9, /* external control TX power (CR31) */
 146                 0x00dbba,
 147                 0x00099b,
 148                 0x0bdffc,
 149                 0x00000d,
 150                 0x00500f,
 151
 152                 /* These writes happen separately in the vendor driver */
 153                 0x00d00f,
 154                 0x004c0f,
 155                 0x00540f,
 156                 0x00700f,
 157                 0x00500f,
 158         };
 159
 160         r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 161         if (r)
 162                 return r;
 163
 164         r = zd_rfwritev_locked(chip, rv, ARRAY_SIZE(rv), RF_RV_BITS);
 165         if (r)
 166                 return r;
 167
 168         return 0;
 169 }
 170
 171 static int zd1211b_al2230_init_hw(struct zd_rf *rf)
 172 {
 173         int r;
 174         struct zd_chip *chip = zd_rf_to_chip(rf);
 175
 176         static const struct zd_ioreq16 ioreqs1[] = {
 177                 { CR10,  0x89 }, { CR15,  0x20 },
 178                 { CR17,  0x2B }, /* for newest(3rd cut) AL2230 */
 179                 { CR23,  0x40 }, { CR24,  0x20 }, { CR26,  0x93 },
 180                 { CR28,  0x3e }, { CR29,  0x00 },
 181                 { CR33,  0x28 }, /* 5621 */
 182                 { CR34,  0x30 },
 183                 { CR35,  0x3e }, /* for newest(3rd cut) AL2230 */
 184                 { CR41,  0x24 }, { CR44,  0x32 },
 185                 { CR46,  0x99 }, /* for newest(3rd cut) AL2230 */
 186                 { CR47,  0x1e },
 187
 188                 /* ZD1211B 05.06.10 */
 189                 { CR48,  0x06 }, { CR49,  0xf9 }, { CR51,  0x01 },
 190                 { CR52,  0x80 }, { CR53,  0x7e }, { CR65,  0x00 },
 191                 { CR66,  0x00 }, { CR67,  0x00 }, { CR68,  0x00 },
 192                 { CR69,  0x28 },
 193
 194                 { CR79,  0x58 }, { CR80,  0x30 }, { CR81,  0x30 },
 195                 { CR87,  0x0a }, { CR89,  0x04 },
 196                 { CR91,  0x00 }, /* 5621 */
 197                 { CR92,  0x0a },
 198                 { CR98,  0x8d }, /* 4804,  for 1212 new algorithm */
 199                 { CR99,  0x00 }, /* 5621 */
 200                 { CR101, 0x13 }, { CR102, 0x27 },
 201                 { CR106, 0x24 }, /* for newest(3rd cut) AL2230 */
 202                 { CR107, 0x2a },
 203                 { CR109, 0x13 }, /* 4804, for 1212 new algorithm */
 204                 { CR110, 0x1f }, /* 4804, for 1212 new algorithm */
 205                 { CR111, 0x1f }, { CR112, 0x1f }, { CR113, 0x27 },
 206                 { CR114, 0x27 },
 207                 { CR115, 0x26 }, /* 24->26 at 4902 for newest(3rd cut) AL2230 */
 208                 { CR116, 0x24 },
 209                 { CR117, 0xfa }, /* for 1211b */
 210                 { CR118, 0xfa }, /* for 1211b */
 211                 { CR119, 0x10 },
 212                 { CR120, 0x4f },
 213                 { CR121, 0x6c }, /* for 1211b */
 214                 { CR122, 0xfc }, /* E0->FC at 4902 */
 215                 { CR123, 0x57 }, /* 5623 */
 216                 { CR125, 0xad }, /* 4804, for 1212 new algorithm */
 217                 { CR126, 0x6c }, /* 5614 */
 218                 { CR127, 0x03 }, /* 4804, for 1212 new algorithm */
 219                 { CR137, 0x50 }, /* 5614 */
 220                 { CR138, 0xa8 },
 221                 { CR144, 0xac }, /* 5621 */
 222                 { CR150, 0x0d }, { CR252, 0x34 }, { CR253, 0x34 },
 223         };
 224
 225         static const u32 rv1[] = {
 226                 0x8cccd0,
 227                 0x481dc0,
 228                 0xcfff00,
 229                 0x25a000,
 230
 231                 /* To improve AL2230 yield, improve phase noise, 4713 */
 232                 0x25a000,
 233                 0xa3b2f0,
 234
 235                 0x6da010, /* Reg6 update for MP versio */
 236                 0xe36280, /* Modified by jxiao for Bor-Chin on 2004/08/02 */
 237                 0x116000,
 238                 0x9dc020, /* External control TX power (CR31) */
 239                 0x5ddb00, /* RegA update for MP version */
 240                 0xd99000, /* RegB update for MP version */
 241                 0x3ffbd0, /* RegC update for MP version */
 242                 0xb00000, /* RegD update for MP version */
 243
 244                 /* improve phase noise and remove phase calibration,4713 */
 245                 0xf01a00,
 246         };
 247
 248         static const struct zd_ioreq16 ioreqs2[] = {
 249                 { CR251, 0x2f }, /* shdnb(PLL_ON)=0 */
 250                 { CR251, 0x7f }, /* shdnb(PLL_ON)=1 */
 251         };
 252
 253         static const u32 rv2[] = {
 254                 /* To improve AL2230 yield, 4713 */
 255                 0xf01b00,
 256                 0xf01e00,
 257                 0xf01a00,
 258         };
 259
 260         static const struct zd_ioreq16 ioreqs3[] = {
 261                 /* related to 6M band edge patching, happens unconditionally */
 262                 { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 },
 263         };
 264
 265         r = zd_iowrite16a_locked(chip, zd1211b_ioreqs_shared_1,
 266                 ARRAY_SIZE(zd1211b_ioreqs_shared_1));
 267         if (r)
 268                 return r;
 269         r = zd_iowrite16a_locked(chip, ioreqs1, ARRAY_SIZE(ioreqs1));
 270         if (r)
 271                 return r;
 272         r = zd_rfwritev_cr_locked(chip, zd1211b_al2230_table[0], 3);
 273         if (r)
 274                 return r;
 275         r = zd_rfwritev_cr_locked(chip, rv1, ARRAY_SIZE(rv1));
 276         if (r)
 277                 return r;
 278         r = zd_iowrite16a_locked(chip, ioreqs2, ARRAY_SIZE(ioreqs2));
 279         if (r)
 280                 return r;
 281         r = zd_rfwritev_cr_locked(chip, rv2, ARRAY_SIZE(rv2));
 282         if (r)
 283                 return r;
 284         r = zd_iowrite16a_locked(chip, ioreqs3, ARRAY_SIZE(ioreqs3));
 285         if (r)
 286                 return r;
 287         return zd1211b_al2230_finalize_rf(chip);
 288 }
 289
 290 static int zd1211_al2230_set_channel(struct zd_rf *rf, u8 channel)
 291 {
 292         int r;
 293         const u32 *rv = zd1211_al2230_table[channel-1];
 294         struct zd_chip *chip = zd_rf_to_chip(rf);
 295         static const struct zd_ioreq16 ioreqs[] = {
 296                 { CR138, 0x28 },
 297                 { CR203, 0x06 },
 298         };
 299
 300         r = zd_rfwritev_locked(chip, rv, 3, RF_RV_BITS);
 301         if (r)
 302                 return r;
 303         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 304 }
 305
 306 static int zd1211b_al2230_set_channel(struct zd_rf *rf, u8 channel)
 307 {
 308         int r;
 309         const u32 *rv = zd1211b_al2230_table[channel-1];
 310         struct zd_chip *chip = zd_rf_to_chip(rf);
 311
 312         r = zd_iowrite16a_locked(chip, zd1211b_ioreqs_shared_1,
 313                 ARRAY_SIZE(zd1211b_ioreqs_shared_1));
 314         if (r)
 315                 return r;
 316
 317         r = zd_rfwritev_cr_locked(chip, rv, 3);
 318         if (r)
 319                 return r;
 320
 321         return zd1211b_al2230_finalize_rf(chip);
 322 }
 323
 324 static int zd1211_al2230_switch_radio_on(struct zd_rf *rf)
 325 {
 326         struct zd_chip *chip = zd_rf_to_chip(rf);
 327         static const struct zd_ioreq16 ioreqs[] = {
 328                 { CR11,  0x00 },
 329                 { CR251, 0x3f },
 330         };
 331
 332         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 333 }
 334
 335 static int zd1211b_al2230_switch_radio_on(struct zd_rf *rf)
 336 {
 337         struct zd_chip *chip = zd_rf_to_chip(rf);
 338         static const struct zd_ioreq16 ioreqs[] = {
 339                 { CR11,  0x00 },
 340                 { CR251, 0x7f },
 341         };
 342
 343         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 344 }
 345
 346 static int al2230_switch_radio_off(struct zd_rf *rf)
 347 {
 348         struct zd_chip *chip = zd_rf_to_chip(rf);
 349         static const struct zd_ioreq16 ioreqs[] = {
 350                 { CR11,  0x04 },
 351                 { CR251, 0x2f },
 352         };
 353
 354         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 355 }
 356
 357 int zd_rf_init_al2230(struct zd_rf *rf)
 358 {
 359         struct zd_chip *chip = zd_rf_to_chip(rf);
 360
 361         rf->switch_radio_off = al2230_switch_radio_off;
 362         if (chip->is_zd1211b) {
 363                 rf->init_hw = zd1211b_al2230_init_hw;
 364                 rf->set_channel = zd1211b_al2230_set_channel;
 365                 rf->switch_radio_on = zd1211b_al2230_switch_radio_on;
 366         } else {
 367                 rf->init_hw = zd1211_al2230_init_hw;
 368                 rf->set_channel = zd1211_al2230_set_channel;
 369                 rf->switch_radio_on = zd1211_al2230_switch_radio_on;
 370         }
 371         rf->patch_6m_band_edge = 1;
 372         return 0;
 373 }