drivers/net/wireless/zd1211rw/zd_rf_al7230b.c

   1 /* ZD1211 USB-WLAN driver for Linux
   2  *
   3  * Copyright (C) 2005-2007 Ulrich Kunitz <kune@deine-taler.de>
   4  * Copyright (C) 2006-2007 Daniel Drake <dsd@gentoo.org>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19  */
  20
  21 #include <linux/kernel.h>
  22
  23 #include "zd_rf.h"
  24 #include "zd_usb.h"
  25 #include "zd_chip.h"
  26
  27 static const u32 chan_rv[][2] = {
  28         RF_CHANNEL( 1) = { 0x09ec00, 0x8cccc8 },
  29         RF_CHANNEL( 2) = { 0x09ec00, 0x8cccd8 },
  30         RF_CHANNEL( 3) = { 0x09ec00, 0x8cccc0 },
  31         RF_CHANNEL( 4) = { 0x09ec00, 0x8cccd0 },
  32         RF_CHANNEL( 5) = { 0x05ec00, 0x8cccc8 },
  33         RF_CHANNEL( 6) = { 0x05ec00, 0x8cccd8 },
  34         RF_CHANNEL( 7) = { 0x05ec00, 0x8cccc0 },
  35         RF_CHANNEL( 8) = { 0x05ec00, 0x8cccd0 },
  36         RF_CHANNEL( 9) = { 0x0dec00, 0x8cccc8 },
  37         RF_CHANNEL(10) = { 0x0dec00, 0x8cccd8 },
  38         RF_CHANNEL(11) = { 0x0dec00, 0x8cccc0 },
  39         RF_CHANNEL(12) = { 0x0dec00, 0x8cccd0 },
  40         RF_CHANNEL(13) = { 0x03ec00, 0x8cccc8 },
  41         RF_CHANNEL(14) = { 0x03ec00, 0x866660 },
  42 };
  43
  44 static const u32 std_rv[] = {
  45         0x4ff821,
  46         0xc5fbfc,
  47         0x21ebfe,
  48         0xafd401, /* freq shift 0xaad401 */
  49         0x6cf56a,
  50         0xe04073,
  51         0x193d76,
  52         0x9dd844,
  53         0x500007,
  54         0xd8c010,
  55 };
  56
  57 static const u32 rv_init1[] = {
  58         0x3c9000,
  59         0xbfffff,
  60         0x700000,
  61         0xf15d58,
  62 };
  63
  64 static const u32 rv_init2[] = {
  65         0xf15d59,
  66         0xf15d5c,
  67         0xf15d58,
  68 };
  69
  70 static const struct zd_ioreq16 ioreqs_sw[] = {
  71         { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 },
  72         { CR38,  0x38 }, { CR136, 0xdf },
  73 };
  74
  75 static int zd1211b_al7230b_finalize(struct zd_chip *chip)
  76 {
  77         int r;
  78         static const struct zd_ioreq16 ioreqs[] = {
  79                 { CR80,  0x30 }, { CR81,  0x30 }, { CR79,  0x58 },
  80                 { CR12,  0xf0 }, { CR77,  0x1b }, { CR78,  0x58 },
  81                 { CR203, 0x04 },
  82                 { },
  83                 { CR240, 0x80 },
  84         };
  85
  86         r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
  87         if (r)
  88                 return r;
  89
  90         if (chip->new_phy_layout) {
  91                 /* antenna selection? */
  92                 r = zd_iowrite16_locked(chip, 0xe5, CR9);
  93                 if (r)
  94                         return r;
  95         }
  96
  97         return zd_iowrite16_locked(chip, 0x04, CR203);
  98 }
  99
 100 static int zd1211_al7230b_init_hw(struct zd_rf *rf)
 101 {
 102         int r;
 103         struct zd_chip *chip = zd_rf_to_chip(rf);
 104
 105         /* All of these writes are identical to AL2230 unless otherwise
 106          * specified */
 107         static const struct zd_ioreq16 ioreqs_1[] = {
 108                 /* This one is 7230-specific, and happens before the rest */
 109                 { CR240,  0x57 },
 110                 { },
 111
 112                 { CR15,   0x20 }, { CR23,   0x40 }, { CR24,  0x20 },
 113                 { CR26,   0x11 }, { CR28,   0x3e }, { CR29,  0x00 },
 114                 { CR44,   0x33 },
 115                 /* This value is different for 7230 (was: 0x2a) */
 116                 { CR106,  0x22 },
 117                 { CR107,  0x1a }, { CR109,  0x09 }, { CR110,  0x27 },
 118                 { CR111,  0x2b }, { CR112,  0x2b }, { CR119,  0x0a },
 119                 /* This happened further down in AL2230,
 120                  * and the value changed (was: 0xe0) */
 121                 { CR122,  0xfc },
 122                 { CR10,   0x89 },
 123                 /* for newest (3rd cut) AL2300 */
 124                 { CR17,   0x28 },
 125                 { CR26,   0x93 }, { CR34,   0x30 },
 126                 /* for newest (3rd cut) AL2300 */
 127                 { CR35,   0x3e },
 128                 { CR41,   0x24 }, { CR44,   0x32 },
 129                 /* for newest (3rd cut) AL2300 */
 130                 { CR46,   0x96 },
 131                 { CR47,   0x1e }, { CR79,   0x58 }, { CR80,  0x30 },
 132                 { CR81,   0x30 }, { CR87,   0x0a }, { CR89,  0x04 },
 133                 { CR92,   0x0a }, { CR99,   0x28 },
 134                 /* This value is different for 7230 (was: 0x00) */
 135                 { CR100,  0x02 },
 136                 { CR101,  0x13 }, { CR102,  0x27 },
 137                 /* This value is different for 7230 (was: 0x24) */
 138                 { CR106,  0x22 },
 139                 /* This value is different for 7230 (was: 0x2a) */
 140                 { CR107,  0x3f },
 141                 { CR109,  0x09 },
 142                 /* This value is different for 7230 (was: 0x13) */
 143                 { CR110,  0x1f },
 144                 { CR111,  0x1f }, { CR112,  0x1f }, { CR113, 0x27 },
 145                 { CR114,  0x27 },
 146                 /* for newest (3rd cut) AL2300 */
 147                 { CR115,  0x24 },
 148                 /* This value is different for 7230 (was: 0x24) */
 149                 { CR116,  0x3f },
 150                 /* This value is different for 7230 (was: 0xf4) */
 151                 { CR117,  0xfa },
 152                 { CR118,  0xfc }, { CR119,  0x10 }, { CR120, 0x4f },
 153                 { CR121,  0x77 }, { CR137,  0x88 },
 154                 /* This one is 7230-specific */
 155                 { CR138,  0xa8 },
 156                 /* This value is different for 7230 (was: 0xff) */
 157                 { CR252,  0x34 },
 158                 /* This value is different for 7230 (was: 0xff) */
 159                 { CR253,  0x34 },
 160
 161                 /* PLL_OFF */
 162                 { CR251, 0x2f },
 163         };
 164
 165         static const struct zd_ioreq16 ioreqs_2[] = {
 166                 { CR251, 0x3f }, /* PLL_ON */
 167                 { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 },
 168                 { CR38,  0x38 }, { CR136, 0xdf },
 169         };
 170
 171         r = zd_iowrite16a_locked(chip, ioreqs_1, ARRAY_SIZE(ioreqs_1));
 172         if (r)
 173                 return r;
 174
 175         r = zd_rfwritev_cr_locked(chip, chan_rv[0], ARRAY_SIZE(chan_rv[0]));
 176         if (r)
 177                 return r;
 178
 179         r = zd_rfwritev_cr_locked(chip, std_rv, ARRAY_SIZE(std_rv));
 180         if (r)
 181                 return r;
 182
 183         r = zd_rfwritev_cr_locked(chip, rv_init1, ARRAY_SIZE(rv_init1));
 184         if (r)
 185                 return r;
 186
 187         r = zd_iowrite16a_locked(chip, ioreqs_2, ARRAY_SIZE(ioreqs_2));
 188         if (r)
 189                 return r;
 190
 191         r = zd_rfwritev_cr_locked(chip, rv_init2, ARRAY_SIZE(rv_init2));
 192         if (r)
 193                 return r;
 194
 195         r = zd_iowrite16_locked(chip, 0x06, CR203);
 196         if (r)
 197                 return r;
 198         r = zd_iowrite16_locked(chip, 0x80, CR240);
 199         if (r)
 200                 return r;
 201
 202         return 0;
 203 }
 204
 205 static int zd1211b_al7230b_init_hw(struct zd_rf *rf)
 206 {
 207         int r;
 208         struct zd_chip *chip = zd_rf_to_chip(rf);
 209
 210         static const struct zd_ioreq16 ioreqs_1[] = {
 211                 { CR240, 0x57 }, { CR9,   0x9 },
 212                 { },
 213                 { CR10,  0x8b }, { CR15,  0x20 },
 214                 { CR17,  0x2B }, /* for newest (3rd cut) AL2230 */
 215                 { CR20,  0x10 }, /* 4N25->Stone Request */
 216                 { CR23,  0x40 }, { CR24,  0x20 }, { CR26,  0x93 },
 217                 { CR28,  0x3e }, { CR29,  0x00 },
 218                 { CR33,  0x28 }, /* 5613 */
 219                 { CR34,  0x30 },
 220                 { CR35,  0x3e }, /* for newest (3rd cut) AL2230 */
 221                 { CR41,  0x24 }, { CR44,  0x32 },
 222                 { CR46,  0x99 }, /* for newest (3rd cut) AL2230 */
 223                 { CR47,  0x1e },
 224
 225                 /* ZD1215 5610 */
 226                 { CR48,  0x00 }, { CR49,  0x00 }, { CR51,  0x01 },
 227                 { CR52,  0x80 }, { CR53,  0x7e }, { CR65,  0x00 },
 228                 { CR66,  0x00 }, { CR67,  0x00 }, { CR68,  0x00 },
 229                 { CR69,  0x28 },
 230
 231                 { CR79,  0x58 }, { CR80,  0x30 }, { CR81,  0x30 },
 232                 { CR87,  0x0A }, { CR89,  0x04 },
 233                 { CR90,  0x58 }, /* 5112 */
 234                 { CR91,  0x00 }, /* 5613 */
 235                 { CR92,  0x0a },
 236                 { CR98,  0x8d }, /* 4804, for 1212 new algorithm */
 237                 { CR99,  0x00 }, { CR100, 0x02 }, { CR101, 0x13 },
 238                 { CR102, 0x27 },
 239                 { CR106, 0x20 }, /* change to 0x24 for AL7230B */
 240                 { CR109, 0x13 }, /* 4804, for 1212 new algorithm */
 241                 { CR112, 0x1f },
 242         };
 243
 244         static const struct zd_ioreq16 ioreqs_new_phy[] = {
 245                 { CR107, 0x28 },
 246                 { CR110, 0x1f }, /* 5127, 0x13->0x1f */
 247                 { CR111, 0x1f }, /* 0x13 to 0x1f for AL7230B */
 248                 { CR116, 0x2a }, { CR118, 0xfa }, { CR119, 0x12 },
 249                 { CR121, 0x6c }, /* 5613 */
 250         };
 251
 252         static const struct zd_ioreq16 ioreqs_old_phy[] = {
 253                 { CR107, 0x24 },
 254                 { CR110, 0x13 }, /* 5127, 0x13->0x1f */
 255                 { CR111, 0x13 }, /* 0x13 to 0x1f for AL7230B */
 256                 { CR116, 0x24 }, { CR118, 0xfc }, { CR119, 0x11 },
 257                 { CR121, 0x6a }, /* 5613 */
 258         };
 259
 260         static const struct zd_ioreq16 ioreqs_2[] = {
 261                 { CR113, 0x27 }, { CR114, 0x27 }, { CR115, 0x24 },
 262                 { CR117, 0xfa }, { CR120, 0x4f },
 263                 { CR122, 0xfc }, /* E0->FCh at 4901 */
 264                 { CR123, 0x57 }, /* 5613 */
 265                 { CR125, 0xad }, /* 4804, for 1212 new algorithm */
 266                 { CR126, 0x6c }, /* 5613 */
 267                 { CR127, 0x03 }, /* 4804, for 1212 new algorithm */
 268                 { CR130, 0x10 },
 269                 { CR131, 0x00 }, /* 5112 */
 270                 { CR137, 0x50 }, /* 5613 */
 271                 { CR138, 0xa8 }, /* 5112 */
 272                 { CR144, 0xac }, /* 5613 */
 273                 { CR148, 0x40 }, /* 5112 */
 274                 { CR149, 0x40 }, /* 4O07, 50->40 */
 275                 { CR150, 0x1a }, /* 5112, 0C->1A */
 276                 { CR252, 0x34 }, { CR253, 0x34 },
 277                 { CR251, 0x2f }, /* PLL_OFF */
 278         };
 279
 280         static const struct zd_ioreq16 ioreqs_3[] = {
 281                 { CR251, 0x7f }, /* PLL_ON */
 282                 { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 },
 283                 { CR38,  0x38 }, { CR136, 0xdf },
 284         };
 285
 286         r = zd_iowrite16a_locked(chip, ioreqs_1, ARRAY_SIZE(ioreqs_1));
 287         if (r)
 288                 return r;
 289
 290         if (chip->new_phy_layout)
 291                 r = zd_iowrite16a_locked(chip, ioreqs_new_phy,
 292                         ARRAY_SIZE(ioreqs_new_phy));
 293         else
 294                 r = zd_iowrite16a_locked(chip, ioreqs_old_phy,
 295                         ARRAY_SIZE(ioreqs_old_phy));
 296         if (r)
 297                 return r;
 298
 299         r = zd_iowrite16a_locked(chip, ioreqs_2, ARRAY_SIZE(ioreqs_2));
 300         if (r)
 301                 return r;
 302
 303         r = zd_rfwritev_cr_locked(chip, chan_rv[0], ARRAY_SIZE(chan_rv[0]));
 304         if (r)
 305                 return r;
 306
 307         r = zd_rfwritev_cr_locked(chip, std_rv, ARRAY_SIZE(std_rv));
 308         if (r)
 309                 return r;
 310
 311         r = zd_rfwritev_cr_locked(chip, rv_init1, ARRAY_SIZE(rv_init1));
 312         if (r)
 313                 return r;
 314
 315         r = zd_iowrite16a_locked(chip, ioreqs_3, ARRAY_SIZE(ioreqs_3));
 316         if (r)
 317                 return r;
 318
 319         r = zd_rfwritev_cr_locked(chip, rv_init2, ARRAY_SIZE(rv_init2));
 320         if (r)
 321                 return r;
 322
 323         return zd1211b_al7230b_finalize(chip);
 324 }
 325
 326 static int zd1211_al7230b_set_channel(struct zd_rf *rf, u8 channel)
 327 {
 328         int r;
 329         const u32 *rv = chan_rv[channel-1];
 330         struct zd_chip *chip = zd_rf_to_chip(rf);
 331
 332         static const struct zd_ioreq16 ioreqs[] = {
 333                 /* PLL_ON */
 334                 { CR251, 0x3f },
 335                 { CR203, 0x06 }, { CR240, 0x08 },
 336         };
 337
 338         r = zd_iowrite16_locked(chip, 0x57, CR240);
 339         if (r)
 340                 return r;
 341
 342         /* PLL_OFF */
 343         r = zd_iowrite16_locked(chip, 0x2f, CR251);
 344         if (r)
 345                 return r;
 346
 347         r = zd_rfwritev_cr_locked(chip, std_rv, ARRAY_SIZE(std_rv));
 348         if (r)
 349                 return r;
 350
 351         r = zd_rfwrite_cr_locked(chip, 0x3c9000);
 352         if (r)
 353                 return r;
 354         r = zd_rfwrite_cr_locked(chip, 0xf15d58);
 355         if (r)
 356                 return r;
 357
 358         r = zd_iowrite16a_locked(chip, ioreqs_sw, ARRAY_SIZE(ioreqs_sw));
 359         if (r)
 360                 return r;
 361
 362         r = zd_rfwritev_cr_locked(chip, rv, 2);
 363         if (r)
 364                 return r;
 365
 366         r = zd_rfwrite_cr_locked(chip, 0x3c9000);
 367         if (r)
 368                 return r;
 369
 370         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 371 }
 372
 373 static int zd1211b_al7230b_set_channel(struct zd_rf *rf, u8 channel)
 374 {
 375         int r;
 376         const u32 *rv = chan_rv[channel-1];
 377         struct zd_chip *chip = zd_rf_to_chip(rf);
 378
 379         r = zd_iowrite16_locked(chip, 0x57, CR240);
 380         if (r)
 381                 return r;
 382         r = zd_iowrite16_locked(chip, 0xe4, CR9);
 383         if (r)
 384                 return r;
 385
 386         /* PLL_OFF */
 387         r = zd_iowrite16_locked(chip, 0x2f, CR251);
 388         if (r)
 389                 return r;
 390         r = zd_rfwritev_cr_locked(chip, std_rv, ARRAY_SIZE(std_rv));
 391         if (r)
 392                 return r;
 393
 394         r = zd_rfwrite_cr_locked(chip, 0x3c9000);
 395         if (r)
 396                 return r;
 397         r = zd_rfwrite_cr_locked(chip, 0xf15d58);
 398         if (r)
 399                 return r;
 400
 401         r = zd_iowrite16a_locked(chip, ioreqs_sw, ARRAY_SIZE(ioreqs_sw));
 402         if (r)
 403                 return r;
 404
 405         r = zd_rfwritev_cr_locked(chip, rv, 2);
 406         if (r)
 407                 return r;
 408
 409         r = zd_rfwrite_cr_locked(chip, 0x3c9000);
 410         if (r)
 411                 return r;
 412
 413         r = zd_iowrite16_locked(chip, 0x7f, CR251);
 414         if (r)
 415                 return r;
 416
 417         return zd1211b_al7230b_finalize(chip);
 418 }
 419
 420 static int zd1211_al7230b_switch_radio_on(struct zd_rf *rf)
 421 {
 422         struct zd_chip *chip = zd_rf_to_chip(rf);
 423         static const struct zd_ioreq16 ioreqs[] = {
 424                 { CR11,  0x00 },
 425                 { CR251, 0x3f },
 426         };
 427
 428         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 429 }
 430
 431 static int zd1211b_al7230b_switch_radio_on(struct zd_rf *rf)
 432 {
 433         struct zd_chip *chip = zd_rf_to_chip(rf);
 434         static const struct zd_ioreq16 ioreqs[] = {
 435                 { CR11,  0x00 },
 436                 { CR251, 0x7f },
 437         };
 438
 439         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 440 }
 441
 442 static int al7230b_switch_radio_off(struct zd_rf *rf)
 443 {
 444         struct zd_chip *chip = zd_rf_to_chip(rf);
 445         static const struct zd_ioreq16 ioreqs[] = {
 446                 { CR11,  0x04 },
 447                 { CR251, 0x2f },
 448         };
 449
 450         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 451 }
 452
 453 /* ZD1211B+AL7230B 6m band edge patching differs slightly from other
 454  * configurations */
 455 static int zd1211b_al7230b_patch_6m(struct zd_rf *rf, u8 channel)
 456 {
 457         struct zd_chip *chip = zd_rf_to_chip(rf);
 458         struct zd_ioreq16 ioreqs[] = {
 459                 { CR128, 0x14 }, { CR129, 0x12 },
 460         };
 461
 462         /* FIXME: Channel 11 is not the edge for all regulatory domains. */
 463         if (channel == 1) {
 464                 ioreqs[0].value = 0x0e;
 465                 ioreqs[1].value = 0x10;
 466         } else if (channel == 11) {
 467                 ioreqs[0].value = 0x10;
 468                 ioreqs[1].value = 0x10;
 469         }
 470
 471         dev_dbg_f(zd_chip_dev(chip), "patching for channel %d\n", channel);
 472         return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 473 }
 474
 475 int zd_rf_init_al7230b(struct zd_rf *rf)
 476 {
 477         struct zd_chip *chip = zd_rf_to_chip(rf);
 478
 479         if (zd_chip_is_zd1211b(chip)) {
 480                 rf->init_hw = zd1211b_al7230b_init_hw;
 481                 rf->switch_radio_on = zd1211b_al7230b_switch_radio_on;
 482                 rf->set_channel = zd1211b_al7230b_set_channel;
 483                 rf->patch_6m_band_edge = zd1211b_al7230b_patch_6m;
 484         } else {
 485                 rf->init_hw = zd1211_al7230b_init_hw;
 486                 rf->switch_radio_on = zd1211_al7230b_switch_radio_on;
 487                 rf->set_channel = zd1211_al7230b_set_channel;
 488                 rf->patch_6m_band_edge = zd_rf_generic_patch_6m;
 489                 rf->patch_cck_gain = 1;
 490         }
 491
 492         rf->switch_radio_off = al7230b_switch_radio_off;
 493
 494         return 0;
 495 }