LXR linux/drivers/net/wireless/zd1211rw/zd_rf

   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#define IS_AL2230S(chip) ((chip)->al2230s_bit || (chip)->rf.type == AL2230S_RF)
  28
  29static const u32 zd1211_al2230_table[][3] = {
  30        RF_CHANNEL( 1) = { 0x03f790, 0x033331, 0x00000d, },
  31        RF_CHANNEL( 2) = { 0x03f790, 0x0b3331, 0x00000d, },
  32        RF_CHANNEL( 3) = { 0x03e790, 0x033331, 0x00000d, },
  33        RF_CHANNEL( 4) = { 0x03e790, 0x0b3331, 0x00000d, },
  34        RF_CHANNEL( 5) = { 0x03f7a0, 0x033331, 0x00000d, },
  35        RF_CHANNEL( 6) = { 0x03f7a0, 0x0b3331, 0x00000d, },
  36        RF_CHANNEL( 7) = { 0x03e7a0, 0x033331, 0x00000d, },
  37        RF_CHANNEL( 8) = { 0x03e7a0, 0x0b3331, 0x00000d, },
  38        RF_CHANNEL( 9) = { 0x03f7b0, 0x033331, 0x00000d, },
  39        RF_CHANNEL(10) = { 0x03f7b0, 0x0b3331, 0x00000d, },
  40        RF_CHANNEL(11) = { 0x03e7b0, 0x033331, 0x00000d, },
  41        RF_CHANNEL(12) = { 0x03e7b0, 0x0b3331, 0x00000d, },
  42        RF_CHANNEL(13) = { 0x03f7c0, 0x033331, 0x00000d, },
  43        RF_CHANNEL(14) = { 0x03e7c0, 0x066661, 0x00000d, },
  44};
  45
  46static const u32 zd1211b_al2230_table[][3] = {
  47        RF_CHANNEL( 1) = { 0x09efc0, 0x8cccc0, 0xb00000, },
  48        RF_CHANNEL( 2) = { 0x09efc0, 0x8cccd0, 0xb00000, },
  49        RF_CHANNEL( 3) = { 0x09e7c0, 0x8cccc0, 0xb00000, },
  50        RF_CHANNEL( 4) = { 0x09e7c0, 0x8cccd0, 0xb00000, },
  51        RF_CHANNEL( 5) = { 0x05efc0, 0x8cccc0, 0xb00000, },
  52        RF_CHANNEL( 6) = { 0x05efc0, 0x8cccd0, 0xb00000, },
  53        RF_CHANNEL( 7) = { 0x05e7c0, 0x8cccc0, 0xb00000, },
  54        RF_CHANNEL( 8) = { 0x05e7c0, 0x8cccd0, 0xb00000, },
  55        RF_CHANNEL( 9) = { 0x0defc0, 0x8cccc0, 0xb00000, },
  56        RF_CHANNEL(10) = { 0x0defc0, 0x8cccd0, 0xb00000, },
  57        RF_CHANNEL(11) = { 0x0de7c0, 0x8cccc0, 0xb00000, },
  58        RF_CHANNEL(12) = { 0x0de7c0, 0x8cccd0, 0xb00000, },
  59        RF_CHANNEL(13) = { 0x03efc0, 0x8cccc0, 0xb00000, },
  60        RF_CHANNEL(14) = { 0x03e7c0, 0x866660, 0xb00000, },
  61};
  62
  63static const struct zd_ioreq16 zd1211b_ioreqs_shared_1[] = {
  64        { ZD_CR240, 0x57 }, { ZD_CR9,   0xe0 },
  65};
  66
  67static const struct zd_ioreq16 ioreqs_init_al2230s[] = {
  68        { ZD_CR47,   0x1e }, /* MARK_002 */
  69        { ZD_CR106,  0x22 },
  70        { ZD_CR107,  0x2a }, /* MARK_002 */
  71        { ZD_CR109,  0x13 }, /* MARK_002 */
  72        { ZD_CR118,  0xf8 }, /* MARK_002 */
  73        { ZD_CR119,  0x12 }, { ZD_CR122,  0xe0 },
  74        { ZD_CR128,  0x10 }, /* MARK_001 from 0xe->0x10 */
  75        { ZD_CR129,  0x0e }, /* MARK_001 from 0xd->0x0e */
  76        { ZD_CR130,  0x10 }, /* MARK_001 from 0xb->0x0d */
  77};
  78
  79static int zd1211b_al2230_finalize_rf(struct zd_chip *chip)
  80{
  81        int r;
  82        static const struct zd_ioreq16 ioreqs[] = {
  83                { ZD_CR80,  0x30 }, { ZD_CR81,  0x30 }, { ZD_CR79,  0x58 },
  84                { ZD_CR12,  0xf0 }, { ZD_CR77,  0x1b }, { ZD_CR78,  0x58 },
  85                { ZD_CR203, 0x06 },
  86                { },
  87
  88                { ZD_CR240, 0x80 },
  89        };
  90
  91        r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
  92        if (r)
  93                return r;
  94
  95        /* related to antenna selection? */
  96        if (chip->new_phy_layout) {
  97                r = zd_iowrite16_locked(chip, 0xe1, ZD_CR9);
  98                if (r)
  99                        return r;
 100        }
 101
 102        return zd_iowrite16_locked(chip, 0x06, ZD_CR203);
 103}
 104
 105static int zd1211_al2230_init_hw(struct zd_rf *rf)
 106{
 107        int r;
 108        struct zd_chip *chip = zd_rf_to_chip(rf);
 109
 110        static const struct zd_ioreq16 ioreqs_init[] = {
 111                { ZD_CR15,   0x20 }, { ZD_CR23,   0x40 }, { ZD_CR24,  0x20 },
 112                { ZD_CR26,   0x11 }, { ZD_CR28,   0x3e }, { ZD_CR29,  0x00 },
 113                { ZD_CR44,   0x33 }, { ZD_CR106,  0x2a }, { ZD_CR107, 0x1a },
 114                { ZD_CR109,  0x09 }, { ZD_CR110,  0x27 }, { ZD_CR111, 0x2b },
 115                { ZD_CR112,  0x2b }, { ZD_CR119,  0x0a }, { ZD_CR10,  0x89 },
 116                /* for newest (3rd cut) AL2300 */
 117                { ZD_CR17,   0x28 },
 118                { ZD_CR26,   0x93 }, { ZD_CR34,   0x30 },
 119                /* for newest (3rd cut) AL2300 */
 120                { ZD_CR35,   0x3e },
 121                { ZD_CR41,   0x24 }, { ZD_CR44,   0x32 },
 122                /* for newest (3rd cut) AL2300 */
 123                { ZD_CR46,   0x96 },
 124                { ZD_CR47,   0x1e }, { ZD_CR79,   0x58 }, { ZD_CR80,  0x30 },
 125                { ZD_CR81,   0x30 }, { ZD_CR87,   0x0a }, { ZD_CR89,  0x04 },
 126                { ZD_CR92,   0x0a }, { ZD_CR99,   0x28 }, { ZD_CR100, 0x00 },
 127                { ZD_CR101,  0x13 }, { ZD_CR102,  0x27 }, { ZD_CR106, 0x24 },
 128                { ZD_CR107,  0x2a }, { ZD_CR109,  0x09 }, { ZD_CR110, 0x13 },
 129                { ZD_CR111,  0x1f }, { ZD_CR112,  0x1f }, { ZD_CR113, 0x27 },
 130                { ZD_CR114,  0x27 },
 131                /* for newest (3rd cut) AL2300 */
 132                { ZD_CR115,  0x24 },
 133                { ZD_CR116,  0x24 }, { ZD_CR117,  0xf4 }, { ZD_CR118, 0xfc },
 134                { ZD_CR119,  0x10 }, { ZD_CR120,  0x4f }, { ZD_CR121, 0x77 },
 135                { ZD_CR122,  0xe0 }, { ZD_CR137,  0x88 }, { ZD_CR252, 0xff },
 136                { ZD_CR253,  0xff },
 137        };
 138
 139        static const struct zd_ioreq16 ioreqs_pll[] = {
 140                /* shdnb(PLL_ON)=0 */
 141                { ZD_CR251,  0x2f },
 142                /* shdnb(PLL_ON)=1 */
 143                { ZD_CR251,  0x3f },
 144                { ZD_CR138,  0x28 }, { ZD_CR203,  0x06 },
 145        };
 146
 147        static const u32 rv1[] = {
 148                /* Channel 1 */
 149                0x03f790,
 150                0x033331,
 151                0x00000d,
 152
 153                0x0b3331,
 154                0x03b812,
 155                0x00fff3,
 156        };
 157
 158        static const u32 rv2[] = {
 159                0x000da4,
 160                0x0f4dc5, /* fix freq shift, 0x04edc5 */
 161                0x0805b6,
 162                0x011687,
 163                0x000688,
 164                0x0403b9, /* external control TX power (ZD_CR31) */
 165                0x00dbba,
 166                0x00099b,
 167                0x0bdffc,
 168                0x00000d,
 169                0x00500f,
 170        };
 171
 172        static const u32 rv3[] = {
 173                0x00d00f,
 174                0x004c0f,
 175                0x00540f,
 176                0x00700f,
 177                0x00500f,
 178        };
 179
 180        r = zd_iowrite16a_locked(chip, ioreqs_init, ARRAY_SIZE(ioreqs_init));
 181        if (r)
 182                return r;
 183
 184        if (IS_AL2230S(chip)) {
 185                r = zd_iowrite16a_locked(chip, ioreqs_init_al2230s,
 186                        ARRAY_SIZE(ioreqs_init_al2230s));
 187                if (r)
 188                        return r;
 189        }
 190
 191        r = zd_rfwritev_locked(chip, rv1, ARRAY_SIZE(rv1), RF_RV_BITS);
 192        if (r)
 193                return r;
 194
 195        /* improve band edge for AL2230S */
 196        if (IS_AL2230S(chip))
 197                r = zd_rfwrite_locked(chip, 0x000824, RF_RV_BITS);
 198        else
 199                r = zd_rfwrite_locked(chip, 0x0005a4, RF_RV_BITS);
 200        if (r)
 201                return r;
 202
 203        r = zd_rfwritev_locked(chip, rv2, ARRAY_SIZE(rv2), RF_RV_BITS);
 204        if (r)
 205                return r;
 206
 207        r = zd_iowrite16a_locked(chip, ioreqs_pll, ARRAY_SIZE(ioreqs_pll));
 208        if (r)
 209                return r;
 210
 211        r = zd_rfwritev_locked(chip, rv3, ARRAY_SIZE(rv3), RF_RV_BITS);
 212        if (r)
 213                return r;
 214
 215        return 0;
 216}
 217
 218static int zd1211b_al2230_init_hw(struct zd_rf *rf)
 219{
 220        int r;
 221        struct zd_chip *chip = zd_rf_to_chip(rf);
 222
 223        static const struct zd_ioreq16 ioreqs1[] = {
 224                { ZD_CR10,  0x89 }, { ZD_CR15,  0x20 },
 225                { ZD_CR17,  0x2B }, /* for newest(3rd cut) AL2230 */
 226                { ZD_CR23,  0x40 }, { ZD_CR24,  0x20 }, { ZD_CR26,  0x93 },
 227                { ZD_CR28,  0x3e }, { ZD_CR29,  0x00 },
 228                { ZD_CR33,  0x28 }, /* 5621 */
 229                { ZD_CR34,  0x30 },
 230                { ZD_CR35,  0x3e }, /* for newest(3rd cut) AL2230 */
 231                { ZD_CR41,  0x24 }, { ZD_CR44,  0x32 },
 232                { ZD_CR46,  0x99 }, /* for newest(3rd cut) AL2230 */
 233                { ZD_CR47,  0x1e },
 234
 235                /* ZD1211B 05.06.10 */
 236                { ZD_CR48,  0x06 }, { ZD_CR49,  0xf9 }, { ZD_CR51,  0x01 },
 237                { ZD_CR52,  0x80 }, { ZD_CR53,  0x7e }, { ZD_CR65,  0x00 },
 238                { ZD_CR66,  0x00 }, { ZD_CR67,  0x00 }, { ZD_CR68,  0x00 },
 239                { ZD_CR69,  0x28 },
 240
 241                { ZD_CR79,  0x58 }, { ZD_CR80,  0x30 }, { ZD_CR81,  0x30 },
 242                { ZD_CR87,  0x0a }, { ZD_CR89,  0x04 },
 243                { ZD_CR91,  0x00 }, /* 5621 */
 244                { ZD_CR92,  0x0a },
 245                { ZD_CR98,  0x8d }, /* 4804,  for 1212 new algorithm */
 246                { ZD_CR99,  0x00 }, /* 5621 */
 247                { ZD_CR101, 0x13 }, { ZD_CR102, 0x27 },
 248                { ZD_CR106, 0x24 }, /* for newest(3rd cut) AL2230 */
 249                { ZD_CR107, 0x2a },
 250                { ZD_CR109, 0x13 }, /* 4804, for 1212 new algorithm */
 251                { ZD_CR110, 0x1f }, /* 4804, for 1212 new algorithm */
 252                { ZD_CR111, 0x1f }, { ZD_CR112, 0x1f }, { ZD_CR113, 0x27 },
 253                { ZD_CR114, 0x27 },
 254                { ZD_CR115, 0x26 }, /* 24->26 at 4902 for newest(3rd cut)
 255                                     * AL2230
 256                                     */
 257                { ZD_CR116, 0x24 },
 258                { ZD_CR117, 0xfa }, /* for 1211b */
 259                { ZD_CR118, 0xfa }, /* for 1211b */
 260                { ZD_CR119, 0x10 },
 261                { ZD_CR120, 0x4f },
 262                { ZD_CR121, 0x6c }, /* for 1211b */
 263                { ZD_CR122, 0xfc }, /* E0->FC at 4902 */
 264                { ZD_CR123, 0x57 }, /* 5623 */
 265                { ZD_CR125, 0xad }, /* 4804, for 1212 new algorithm */
 266                { ZD_CR126, 0x6c }, /* 5614 */
 267                { ZD_CR127, 0x03 }, /* 4804, for 1212 new algorithm */
 268                { ZD_CR137, 0x50 }, /* 5614 */
 269                { ZD_CR138, 0xa8 },
 270                { ZD_CR144, 0xac }, /* 5621 */
 271                { ZD_CR150, 0x0d }, { ZD_CR252, 0x34 }, { ZD_CR253, 0x34 },
 272        };
 273
 274        static const u32 rv1[] = {
 275                0x8cccd0,
 276                0x481dc0,
 277                0xcfff00,
 278                0x25a000,
 279        };
 280
 281        static const u32 rv2[] = {
 282                /* To improve AL2230 yield, improve phase noise, 4713 */
 283                0x25a000,
 284                0xa3b2f0,
 285
 286                0x6da010, /* Reg6 update for MP versio */
 287                0xe36280, /* Modified by jxiao for Bor-Chin on 2004/08/02 */
 288                0x116000,
 289                0x9dc020, /* External control TX power (ZD_CR31) */
 290                0x5ddb00, /* RegA update for MP version */
 291                0xd99000, /* RegB update for MP version */
 292                0x3ffbd0, /* RegC update for MP version */
 293                0xb00000, /* RegD update for MP version */
 294
 295                /* improve phase noise and remove phase calibration,4713 */
 296                0xf01a00,
 297        };
 298
 299        static const struct zd_ioreq16 ioreqs2[] = {
 300                { ZD_CR251, 0x2f }, /* shdnb(PLL_ON)=0 */
 301                { ZD_CR251, 0x7f }, /* shdnb(PLL_ON)=1 */
 302        };
 303
 304        static const u32 rv3[] = {
 305                /* To improve AL2230 yield, 4713 */
 306                0xf01b00,
 307                0xf01e00,
 308                0xf01a00,
 309        };
 310
 311        static const struct zd_ioreq16 ioreqs3[] = {
 312                /* related to 6M band edge patching, happens unconditionally */
 313                { ZD_CR128, 0x14 }, { ZD_CR129, 0x12 }, { ZD_CR130, 0x10 },
 314        };
 315
 316        r = zd_iowrite16a_locked(chip, zd1211b_ioreqs_shared_1,
 317                ARRAY_SIZE(zd1211b_ioreqs_shared_1));
 318        if (r)
 319                return r;
 320        r = zd_iowrite16a_locked(chip, ioreqs1, ARRAY_SIZE(ioreqs1));
 321        if (r)
 322                return r;
 323
 324        if (IS_AL2230S(chip)) {
 325                r = zd_iowrite16a_locked(chip, ioreqs_init_al2230s,
 326                        ARRAY_SIZE(ioreqs_init_al2230s));
 327                if (r)
 328                        return r;
 329        }
 330
 331        r = zd_rfwritev_cr_locked(chip, zd1211b_al2230_table[0], 3);
 332        if (r)
 333                return r;
 334        r = zd_rfwritev_cr_locked(chip, rv1, ARRAY_SIZE(rv1));
 335        if (r)
 336                return r;
 337
 338        if (IS_AL2230S(chip))
 339                r = zd_rfwrite_locked(chip, 0x241000, RF_RV_BITS);
 340        else
 341                r = zd_rfwrite_locked(chip, 0x25a000, RF_RV_BITS);
 342        if (r)
 343                return r;
 344
 345        r = zd_rfwritev_cr_locked(chip, rv2, ARRAY_SIZE(rv2));
 346        if (r)
 347                return r;
 348        r = zd_iowrite16a_locked(chip, ioreqs2, ARRAY_SIZE(ioreqs2));
 349        if (r)
 350                return r;
 351        r = zd_rfwritev_cr_locked(chip, rv3, ARRAY_SIZE(rv3));
 352        if (r)
 353                return r;
 354        r = zd_iowrite16a_locked(chip, ioreqs3, ARRAY_SIZE(ioreqs3));
 355        if (r)
 356                return r;
 357        return zd1211b_al2230_finalize_rf(chip);
 358}
 359
 360static int zd1211_al2230_set_channel(struct zd_rf *rf, u8 channel)
 361{
 362        int r;
 363        const u32 *rv = zd1211_al2230_table[channel-1];
 364        struct zd_chip *chip = zd_rf_to_chip(rf);
 365        static const struct zd_ioreq16 ioreqs[] = {
 366                { ZD_CR138, 0x28 },
 367                { ZD_CR203, 0x06 },
 368        };
 369
 370        r = zd_rfwritev_locked(chip, rv, 3, RF_RV_BITS);
 371        if (r)
 372                return r;
 373        return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 374}
 375
 376static int zd1211b_al2230_set_channel(struct zd_rf *rf, u8 channel)
 377{
 378        int r;
 379        const u32 *rv = zd1211b_al2230_table[channel-1];
 380        struct zd_chip *chip = zd_rf_to_chip(rf);
 381
 382        r = zd_iowrite16a_locked(chip, zd1211b_ioreqs_shared_1,
 383                ARRAY_SIZE(zd1211b_ioreqs_shared_1));
 384        if (r)
 385                return r;
 386
 387        r = zd_rfwritev_cr_locked(chip, rv, 3);
 388        if (r)
 389                return r;
 390
 391        return zd1211b_al2230_finalize_rf(chip);
 392}
 393
 394static int zd1211_al2230_switch_radio_on(struct zd_rf *rf)
 395{
 396        struct zd_chip *chip = zd_rf_to_chip(rf);
 397        static const struct zd_ioreq16 ioreqs[] = {
 398                { ZD_CR11,  0x00 },
 399                { ZD_CR251, 0x3f },
 400        };
 401
 402        return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 403}
 404
 405static int zd1211b_al2230_switch_radio_on(struct zd_rf *rf)
 406{
 407        struct zd_chip *chip = zd_rf_to_chip(rf);
 408        static const struct zd_ioreq16 ioreqs[] = {
 409                { ZD_CR11,  0x00 },
 410                { ZD_CR251, 0x7f },
 411        };
 412
 413        return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 414}
 415
 416static int al2230_switch_radio_off(struct zd_rf *rf)
 417{
 418        struct zd_chip *chip = zd_rf_to_chip(rf);
 419        static const struct zd_ioreq16 ioreqs[] = {
 420                { ZD_CR11,  0x04 },
 421                { ZD_CR251, 0x2f },
 422        };
 423
 424        return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
 425}
 426
 427int zd_rf_init_al2230(struct zd_rf *rf)
 428{
 429        struct zd_chip *chip = zd_rf_to_chip(rf);
 430
 431        rf->switch_radio_off = al2230_switch_radio_off;
 432        if (zd_chip_is_zd1211b(chip)) {
 433                rf->init_hw = zd1211b_al2230_init_hw;
 434                rf->set_channel = zd1211b_al2230_set_channel;
 435                rf->switch_radio_on = zd1211b_al2230_switch_radio_on;
 436        } else {
 437                rf->init_hw = zd1211_al2230_init_hw;
 438                rf->set_channel = zd1211_al2230_set_channel;
 439                rf->switch_radio_on = zd1211_al2230_switch_radio_on;
 440        }
 441        rf->patch_6m_band_edge = zd_rf_generic_patch_6m;
 442        rf->patch_cck_gain = 1;
 443        return 0;
 444}
 445