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 #define IS_AL2230S(chip) ((chip)->al2230s_bit || (chip)->rf.type == AL2230S_RF)
  25
  26 static const u32 zd1211_al2230_table[][3] = {
  27         RF_CHANNEL( 1) = { 0x03f790, 0x033331, 0x00000d, },
  28         RF_CHANNEL( 2) = { 0x03f790, 0x0b3331, 0x00000d, },
  29         RF_CHANNEL( 3) = { 0x03e790, 0x033331, 0x00000d, },
  30         RF_CHANNEL( 4) = { 0x03e790, 0x0b3331, 0x00000d, },
  31         RF_CHANNEL( 5) = { 0x03f7a0, 0x033331, 0x00000d, },
  32         RF_CHANNEL( 6) = { 0x03f7a0, 0x0b3331, 0x00000d, },
  33         RF_CHANNEL( 7) = { 0x03e7a0, 0x033331, 0x00000d, },
  34         RF_CHANNEL( 8) = { 0x03e7a0, 0x0b3331, 0x00000d, },
  35         RF_CHANNEL( 9) = { 0x03f7b0, 0x033331, 0x00000d, },
  36         RF_CHANNEL(10) = { 0x03f7b0, 0x0b3331, 0x00000d, },
  37         RF_CHANNEL(11) = { 0x03e7b0, 0x033331, 0x00000d, },
  38         RF_CHANNEL(12) = { 0x03e7b0, 0x0b3331, 0x00000d, },
  39         RF_CHANNEL(13) = { 0x03f7c0, 0x033331, 0x00000d, },
  40         RF_CHANNEL(14) = { 0x03e7c0, 0x066661, 0x00000d, },
  41 };
  42
  43 static const u32 zd1211b_al2230_table[][3] = {
  44         RF_CHANNEL( 1) = { 0x09efc0, 0x8cccc0, 0xb00000, },
  45         RF_CHANNEL( 2) = { 0x09efc0, 0x8cccd0, 0xb00000, },
  46         RF_CHANNEL( 3) = { 0x09e7c0, 0x8cccc0, 0xb00000, },
  47         RF_CHANNEL( 4) = { 0x09e7c0, 0x8cccd0, 0xb00000, },
  48         RF_CHANNEL( 5) = { 0x05efc0, 0x8cccc0, 0xb00000, },
  49         RF_CHANNEL( 6) = { 0x05efc0, 0x8cccd0, 0xb00000, },
  50         RF_CHANNEL( 7) = { 0x05e7c0, 0x8cccc0, 0xb00000, },
  51         RF_CHANNEL( 8) = { 0x05e7c0, 0x8cccd0, 0xb00000, },
  52         RF_CHANNEL( 9) = { 0x0defc0, 0x8cccc0, 0xb00000, },
  53         RF_CHANNEL(10) = { 0x0defc0, 0x8cccd0, 0xb00000, },
  54         RF_CHANNEL(11) = { 0x0de7c0, 0x8cccc0, 0xb00000, },
  55         RF_CHANNEL(12) = { 0x0de7c0, 0x8cccd0, 0xb00000, },
  56         RF_CHANNEL(13) = { 0x03efc0, 0x8cccc0, 0xb00000, },
  57         RF_CHANNEL(14) = { 0x03e7c0, 0x866660, 0xb00000, },
  58 };
  59
  60 static const struct zd_ioreq16 zd1211b_ioreqs_shared_1[] = {
  61         { CR240, 0x57 }, { CR9,   0xe0 },
  62 };
  63
  64 static const struct zd_ioreq16 ioreqs_init_al2230s[] = {
  65         { CR47,   0x1e }, /* MARK_002 */
  66         { CR106,  0x22 },
  67         { CR107,  0x2a }, /* MARK_002 */
  68         { CR109,  0x13 }, /* MARK_002 */
  69         { CR118,  0xf8 }, /* MARK_002 */
  70         { CR119,  0x12 }, { CR122,  0xe0 },
  71         { CR128,  0x10 }, /* MARK_001 from 0xe->0x10 */
  72         { CR129,  0x0e }, /* MARK_001 from 0xd->0x0e */
  73         { CR130,  0x10 }, /* MARK_001 from 0xb->0x0d */
  74 };
  75
  76 static int zd1211b_al2230_finalize_rf(struct zd_chip *chip)
  77 {
  78         int r;
  79         static const struct zd_ioreq16 ioreqs[] = {
  80                 { CR80,  0x30 }, { CR81,  0x30 }, { CR79,  0x58 },
  81                 { CR12,  0xf0 }, { CR77,  0x1b }, { CR78,  0x58 },
  82                 { CR203, 0x06 },
  83                 { },
  84
  85                 { CR240, 0x80 },
  86         };
  87
  88         r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
  89         if (r)
  90                 return r;
  91
  92         /* related to antenna selection? */
  93         if (chip->new_phy_layout) {
  94                 r = zd_iowrite16_locked(chip, 0xe1, CR9);
  95                 if (r)
  96                         return r;
  97         }
  98
  99         return zd_iowrite16_locked(chip, 0x06, CR203);
 100 }
 101
 102 static int zd1211_al2230_init_hw(struct zd_rf *rf)
 103 {
 104         int r;
 105         struct zd_chip *chip = zd_rf_to_chip(rf);
 106
 107         static const struct zd_ioreq16 ioreqs_init[] = {
 108                 { CR15,   0x20 }, { CR23,   0x40 }, { CR24,  0x20 },
 109                 { CR26,   0x11 }, { CR28,   0x3e }, { CR29,  0x00 },
 110                 { CR44,   0x33 }, { CR106,  0x2a }, { CR107, 0x1a },
 111                 { CR109,  0x09 }, { CR110,  0x27 }, { CR111, 0x2b },
 112                 { CR112,  0x2b }, { CR119,  0x0a }, { CR10,  0x89 },
 113                 /* for newest (3rd cut) AL2300 */
 114                 { CR17,   0x28 },
 115                 { CR26,   0x93 }, { CR34,   0x30 },
 116                 /* for newest (3rd cut) AL2300 */
 117                 { CR35,   0x3e },
 118                 { CR41,   0x24 }, { CR44,   0x32 },
 119                 /* for newest (3rd cut) AL2300 */
 120                 { CR46,   0x96 },
 121                 { CR47,   0x1e }, { CR79,   0x58 }, { CR80,  0x30 },
 122                 { CR81,   0x30 }, { CR87,   0x0a }, { CR89,  0x04 },
 123                 { CR92,   0x0a }, { CR99,   0x28 }, { CR100, 0x00 },
 124                 { CR101,  0x13 }, { CR102,  0x27 }, { CR106, 0x24 },
 125                 { CR107,  0x2a }, { CR109,  0x09 }, { CR110, 0x13 },
 126                 { CR111,  0x1f }, { CR112,  0x1f }, { CR113, 0x27 },
 127                 { CR114,  0x27 },
 128                 /* for newest (3rd cut) AL2300 */
 129                 { CR115,  0x24 },
 130                 { CR116,  0x24 }, { CR117,  0xf4 }, { CR118, 0xfc },
 131                 { CR119,  0x10 }, { CR120,  0x4f }, { CR121, 0x77 },
 132                 { CR122,  0xe0 }, { CR137,  0x88 }, { CR252, 0xff },
 133                 { CR253,  0xff },
 134         };
 135
 136         static const struct zd_ioreq16 ioreqs_pll[] = {
 137                 /* shdnb(PLL_ON)=0 */
 138                 { CR251,  0x2f },
 139                 /* shdnb(PLL_ON)=1 */
 140                 { CR251,  0x3f },
 141                 { CR138,  0x28 }, { CR203,  0x06 },
 142         };
 143
 144         static const u32 rv1[] = {
 145                 /* Channel 1 */
 146                 0x03f790,
 147                 0x033331,
 148                 0x00000d,
 149
 150                 0x0b3331,
 151                 0x03b812,
 152                 0x00fff3,
 153         };
 154
 155         static const u32 rv2[] = {
 156                 0x000da4,
 157                 0x0f4dc5, /* fix freq shift, 0x04edc5 */
 158                 0x0805b6,
 159                 0x011687,
 160                 0x000688,
 161                 0x0403b9, /* external control TX power (CR31) */
 162                 0x00dbba,
 163                 0x00099b,
 164                 0x0bdffc,
 165                 0x00000d,
 166                 0x00500f,
 167         };
 168
 169         static const u32 rv3[] = {
 170                 0x00d00f,
 171                 0x004c0f,
 172                 0x00540f,
 173                 0x00700f,
 174                 0x00500f,
 175         };
 176
 177         r = zd_iowrite16a_locked(chip, ioreqs_init, ARRAY_SIZE(ioreqs_init));
 178         if (r)
 179                 return r;
 180
 181         if (IS_AL2230S(chip)) {
 182                 r = zd_iowrite16a_locked(chip, ioreqs_init_al2230s,
 183                         ARRAY_SIZE(ioreqs_init_al2230s));
 184                 if (r)
 185                         return r;
 186         }
 187
 188         r = zd_rfwritev_locked(chip, rv1, ARRAY_SIZE(rv1), RF_RV_BITS);
 189         if (r)
 190                 return r;
 191
 192         /* improve band edge for AL2230S */
 193         if (IS_AL2230S(chip))
 194                 r = zd_rfwrite_locked(chip, 0x000824, RF_RV_BITS);
 195         else
 196                 r = zd_rfwrite_locked(chip, 0x0005a4, RF_RV_BITS);
 197         if (r)
 198                 return r;
 199
 200         r = zd_rfwritev_locked(chip, rv2, ARRAY_SIZE(rv2), RF_RV_BITS);
 201         if (r)
 202                 return r;
 203
 204         r = zd_iowrite16a_locked(chip, ioreqs_pll, ARRAY_SIZE(ioreqs_pll));
 205         if (r)
 206                 return r;
 207
 208         r = zd_rfwritev_locked(chip, rv3, ARRAY_SIZE(rv3), RF_RV_BITS);
 209         if (r)
 210                 return r;
 211
 212         return 0;
 213 }
 214
 215 static int zd1211b_al2230_init_hw(struct zd_rf *rf)
 216 {
 217         int r;
 218         struct zd_chip *chip = zd_rf_to_chip(rf);
 219
 220         static const struct zd_ioreq16 ioreqs1[] = {
 221                 { CR10,  0x89 }, { CR15,  0x20 },
 222                 { CR17,  0x2B }, /* for newest(3rd cut) AL2230 */
 223                 { CR23,  0x40 }, { CR24,  0x20 }, { CR26,  0x93 },
 224                 { CR28,  0x3e }, { CR29,  0x00 },
 225                 { CR33,  0x28 }, /* 5621 */
 226                 { CR34,  0x30 },
 227                 { CR35,  0x3e }, /* for newest(3rd cut) AL2230 */
 228                 { CR41,  0x24 }, { CR44,  0x32 },
 229                 { CR46,  0x99 }, /* for newest(3rd cut) AL2230 */
 230                 { CR47,  0x1e },
 231
 232                 /* ZD1211B 05.06.10 */
 233                 { CR48,  0x06 }, { CR49,  0xf9 }, { CR51,  0x01 },
 234                 { CR52,  0x80 }, { CR53,  0x7e }, { CR65,  0x00 },
 235                 { CR66,  0x00 }, { CR67,  0x00 }, { CR68,  0x00 },
 236                 { CR69,  0x28 },
 237
 238                 { CR79,  0x58 }, { CR80,  0x30 }, { CR81,  0x30 },
 239                 { CR87,  0x0a }, { CR89,  0x04 },
 240                 { CR91,  0x00 }, /* 5621 */
 241                 { CR92,  0x0a },
 242                 { CR98,  0x8d }, /* 4804,  for 1212 new algorithm */
 243                 { CR99,  0x00 }, /* 5621 */
 244                 { CR101, 0x13 }, { CR102, 0x27 },
 245                 { CR106, 0x24 }, /* for newest(3rd cut) AL2230 */
 246                 { CR107, 0x2a },
 247                 { CR109, 0x13 }, /* 4804, for 1212 new algorithm */
 248                 { CR110, 0x1f }, /* 4804, for 1212 new algorithm */
 249                 { CR111, 0x1f }, { CR112, 0x1f }, { CR113, 0x27 },
 250                 { CR114, 0x27 },
 251                 { CR115, 0x26 }, /* 24->26 at 4902 for newest(3rd cut) AL2230 */
 252                 { CR116, 0x24 },
 253                 { CR117, 0xfa }, /* for 1211b */
 254                 { CR118, 0xfa }, /* for 1211b */
 255                 { CR119, 0x10 },
 256                 { CR120, 0x4f },
 257                 { CR121, 0x6c }, /* for 1211b */
 258                 { CR122, 0xfc }, /* E0->FC at 4902 */
 259                 { CR123, 0x57 }, /* 5623 */
 260                 { CR125, 0xad }, /* 4804, for 1212 new algorithm */
 261                 { CR126, 0x6c }, /* 5614 */
 262                 { CR127, 0x03 }, /* 4804, for 1212 new algorithm */
 263                 { CR137, 0x50 }, /* 5614 */
 264                 { CR138, 0xa8 },
 265                 { CR144, 0xac }, /* 5621 */
 266                 { CR150, 0x0d }, { CR252, 0x34 }, { CR253, 0x34 },
 267         };
 268
 269         static const u32 rv1[] = {
 270                 0x8cccd0,
 271                 0x481dc0,
 272                 0xcfff00,
 273                 0x25a000,
 274         };
 275
 276         static const u32 rv2[] = {
 277                 /* To improve AL2230 yield, improve phase noise, 4713 */
 278                 0x25a000,
 279                 0xa3b2f0,
 280
 281                 0x6da010, /* Reg6 update for MP versio */
 282                 0xe36280, /* Modified by jxiao for Bor-Chin on 2004/08/02 */
 283                 0x116000,
 284                 0x9dc020, /* External control TX power (CR31) */
 285                 0x5ddb00, /* RegA update for MP version */
 286                 0xd99000, /* RegB update for MP version */
 287                 0x3ffbd0, /* RegC update for MP version */
 288                 0xb00000, /* RegD update for MP version */
 289
 290                 /* improve phase noise and remove phase calibration,4713 */
 291                 0xf01a00,
 292         };
 293
 294         static const struct zd_ioreq16 ioreqs2[] = {
 295                 { CR251, 0x2f }, /* shdnb(PLL_ON)=0 */
 296                 { CR251, 0x7f }, /* shdnb(PLL_ON)=1 */
 297         };
 298
 299         static const u32 rv3[] = {
 300                 /* To improve AL2230 yield, 4713 */
 301                 0xf01b00,
 302                 0xf01e00,
 303                 0xf01a00,
 304         };
 305
 306         static const struct zd_ioreq16 ioreqs3[] = {
 307                 /* related to 6M band edge patching, happens unconditionally */
 308                 { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 },
 309         };
 310
 311         r = zd_iowrite16a_locked(chip, zd1211b_ioreqs_shared_1,
 312                 ARRAY_SIZE(zd1211b_ioreqs_shared_1));
 313         if (r)
 314                 return r;
 315         r = zd_iowrite16a_locked(chip, ioreqs1, ARRAY_SIZE(ioreqs1));
 316         if (r)
 317                 return r;
 318
 319         if (IS_AL2230S(chip)) {
 320                 r = zd_iowrite16a_locked(chip, ioreqs_init_al2230s,
 321                         ARRAY_SIZE(ioreqs_init_al2230s));
 322                 if (r)
 323                         return r;
 324         }
 325
 326         r = zd_rfwritev_cr_locked(chip, zd1211b_al2230_table[0], 3);
 327         if (r)
 328                 return r;
 329         r = zd_rfwritev_cr_locked(chip, rv1, ARRAY_SIZE(rv1));
 330         if (r)
 331                 return r;
 332
 333         if (IS_AL2230S(chip))
 334                 r = zd_rfwrite_locked(chip, 0x241000, RF_RV_BITS);
 335         else
 336                 r = zd_rfwrite_locked(chip, 0x25a000, RF_RV_BITS);
 337         if (r)
 338                 return r;
 339
 340         r = zd_rfwritev_cr_locked(chip, rv2, ARRAY_SIZE(rv2));
 341         if (r)
 342                 return r;
 343         r = zd_iowrite16a_locked(chip, ioreqs2, ARRAY_SIZE(ioreqs2));
 344         if (r)
 345                 return r;
 346         r = zd_rfwritev_cr_locked(chip, rv3, ARRAY_SIZE(rv3));
 347         if (r)
 348                 return r;
 349         r = zd_iowrite16a_locked(chip, ioreqs3, ARRAY_SIZE(ioreqs3));
 350         if (r)
 351                 return r;
 352         return zd1211b_al2230_finalize_rf(chip);
 353 }
 354
 355 static int zd1211_al2230_set_channel(struct zd_rf *rf, u8 channel)
 356 {
 357         int r;
 358         const u32 *rv = zd1211_al2230_table[channel-1];
 359         struct zd_chip *chip = zd_rf_to_chip(rf);
 360         static const struct zd_ioreq16 ioreqs[] = {
 361                 { CR138, 0x28 },
 362                 { CR203, 0x06 },
 363         };
 364
 365         r = zd_rfwritev_locked(chip, rv, 3, RF_RV_BITS);
 366         if (r)
 367                 return r;
 368         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 369 }
 370
 371 static int zd1211b_al2230_set_channel(struct zd_rf *rf, u8 channel)
 372 {
 373         int r;
 374         const u32 *rv = zd1211b_al2230_table[channel-1];
 375         struct zd_chip *chip = zd_rf_to_chip(rf);
 376
 377         r = zd_iowrite16a_locked(chip, zd1211b_ioreqs_shared_1,
 378                 ARRAY_SIZE(zd1211b_ioreqs_shared_1));
 379         if (r)
 380                 return r;
 381
 382         r = zd_rfwritev_cr_locked(chip, rv, 3);
 383         if (r)
 384                 return r;
 385
 386         return zd1211b_al2230_finalize_rf(chip);
 387 }
 388
 389 static int zd1211_al2230_switch_radio_on(struct zd_rf *rf)
 390 {
 391         struct zd_chip *chip = zd_rf_to_chip(rf);
 392         static const struct zd_ioreq16 ioreqs[] = {
 393                 { CR11,  0x00 },
 394                 { CR251, 0x3f },
 395         };
 396
 397         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 398 }
 399
 400 static int zd1211b_al2230_switch_radio_on(struct zd_rf *rf)
 401 {
 402         struct zd_chip *chip = zd_rf_to_chip(rf);
 403         static const struct zd_ioreq16 ioreqs[] = {
 404                 { CR11,  0x00 },
 405                 { CR251, 0x7f },
 406         };
 407
 408         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 409 }
 410
 411 static int al2230_switch_radio_off(struct zd_rf *rf)
 412 {
 413         struct zd_chip *chip = zd_rf_to_chip(rf);
 414         static const struct zd_ioreq16 ioreqs[] = {
 415                 { CR11,  0x04 },
 416                 { CR251, 0x2f },
 417         };
 418
 419         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 420 }
 421
 422 int zd_rf_init_al2230(struct zd_rf *rf)
 423 {
 424         struct zd_chip *chip = zd_rf_to_chip(rf);
 425
 426         rf->switch_radio_off = al2230_switch_radio_off;
 427         if (zd_chip_is_zd1211b(chip)) {
 428                 rf->init_hw = zd1211b_al2230_init_hw;
 429                 rf->set_channel = zd1211b_al2230_set_channel;
 430                 rf->switch_radio_on = zd1211b_al2230_switch_radio_on;
 431         } else {
 432                 rf->init_hw = zd1211_al2230_init_hw;
 433                 rf->set_channel = zd1211_al2230_set_channel;
 434                 rf->switch_radio_on = zd1211_al2230_switch_radio_on;
 435         }
 436         rf->patch_6m_band_edge = zd_rf_generic_patch_6m;
 437         rf->patch_cck_gain = 1;
 438         return 0;
 439 }