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 27static 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 44static 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 57static const u32 rv_init1[] = { 58 0x3c9000, 59 0xbfffff, 60 0x700000, 61 0xf15d58, 62}; 63 64static const u32 rv_init2[] = { 65 0xf15d59, 66 0xf15d5c, 67 0xf15d58, 68}; 69 70static const struct zd_ioreq16 ioreqs_sw[] = { 71 { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 }, 72 { CR38, 0x38 }, { CR136, 0xdf }, 73}; 74 75static 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 100static 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 205static 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 326static 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 373static 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 420static 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 431static 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 442static 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 */ 455static 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 if (channel == 1) { 463 ioreqs[0].value = 0x0e; 464 ioreqs[1].value = 0x10; 465 } else if (channel == 11) { 466 ioreqs[0].value = 0x10; 467 ioreqs[1].value = 0x10; 468 } 469 470 dev_dbg_f(zd_chip_dev(chip), "patching for channel %d\n", channel); 471 return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); 472} 473 474int zd_rf_init_al7230b(struct zd_rf *rf) 475{ 476 struct zd_chip *chip = zd_rf_to_chip(rf); 477 478 if (zd_chip_is_zd1211b(chip)) { 479 rf->init_hw = zd1211b_al7230b_init_hw; 480 rf->switch_radio_on = zd1211b_al7230b_switch_radio_on; 481 rf->set_channel = zd1211b_al7230b_set_channel; 482 rf->patch_6m_band_edge = zd1211b_al7230b_patch_6m; 483 } else { 484 rf->init_hw = zd1211_al7230b_init_hw; 485 rf->switch_radio_on = zd1211_al7230b_switch_radio_on; 486 rf->set_channel = zd1211_al7230b_set_channel; 487 rf->patch_6m_band_edge = zd_rf_generic_patch_6m; 488 rf->patch_cck_gain = 1; 489 } 490 491 rf->switch_radio_off = al7230b_switch_radio_off; 492 493 return 0; 494} 495