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, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #include <linux/kernel.h> 21 22 #include "zd_rf.h" 23 #include "zd_usb.h" 24 #include "zd_chip.h" 25 26 static const u32 chan_rv[][2] = { 27 RF_CHANNEL( 1) = { 0x09ec00, 0x8cccc8 }, 28 RF_CHANNEL( 2) = { 0x09ec00, 0x8cccd8 }, 29 RF_CHANNEL( 3) = { 0x09ec00, 0x8cccc0 }, 30 RF_CHANNEL( 4) = { 0x09ec00, 0x8cccd0 }, 31 RF_CHANNEL( 5) = { 0x05ec00, 0x8cccc8 }, 32 RF_CHANNEL( 6) = { 0x05ec00, 0x8cccd8 }, 33 RF_CHANNEL( 7) = { 0x05ec00, 0x8cccc0 }, 34 RF_CHANNEL( 8) = { 0x05ec00, 0x8cccd0 }, 35 RF_CHANNEL( 9) = { 0x0dec00, 0x8cccc8 }, 36 RF_CHANNEL(10) = { 0x0dec00, 0x8cccd8 }, 37 RF_CHANNEL(11) = { 0x0dec00, 0x8cccc0 }, 38 RF_CHANNEL(12) = { 0x0dec00, 0x8cccd0 }, 39 RF_CHANNEL(13) = { 0x03ec00, 0x8cccc8 }, 40 RF_CHANNEL(14) = { 0x03ec00, 0x866660 }, 41 }; 42 43 static const u32 std_rv[] = { 44 0x4ff821, 45 0xc5fbfc, 46 0x21ebfe, 47 0xafd401, /* freq shift 0xaad401 */ 48 0x6cf56a, 49 0xe04073, 50 0x193d76, 51 0x9dd844, 52 0x500007, 53 0xd8c010, 54 }; 55 56 static const u32 rv_init1[] = { 57 0x3c9000, 58 0xbfffff, 59 0x700000, 60 0xf15d58, 61 }; 62 63 static const u32 rv_init2[] = { 64 0xf15d59, 65 0xf15d5c, 66 0xf15d58, 67 }; 68 69 static const struct zd_ioreq16 ioreqs_sw[] = { 70 { ZD_CR128, 0x14 }, { ZD_CR129, 0x12 }, { ZD_CR130, 0x10 }, 71 { ZD_CR38, 0x38 }, { ZD_CR136, 0xdf }, 72 }; 73 74 static int zd1211b_al7230b_finalize(struct zd_chip *chip) 75 { 76 int r; 77 static const struct zd_ioreq16 ioreqs[] = { 78 { ZD_CR80, 0x30 }, { ZD_CR81, 0x30 }, { ZD_CR79, 0x58 }, 79 { ZD_CR12, 0xf0 }, { ZD_CR77, 0x1b }, { ZD_CR78, 0x58 }, 80 { ZD_CR203, 0x04 }, 81 { }, 82 { ZD_CR240, 0x80 }, 83 }; 84 85 r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); 86 if (r) 87 return r; 88 89 if (chip->new_phy_layout) { 90 /* antenna selection? */ 91 r = zd_iowrite16_locked(chip, 0xe5, ZD_CR9); 92 if (r) 93 return r; 94 } 95 96 return zd_iowrite16_locked(chip, 0x04, ZD_CR203); 97 } 98 99 static int zd1211_al7230b_init_hw(struct zd_rf *rf) 100 { 101 int r; 102 struct zd_chip *chip = zd_rf_to_chip(rf); 103 104 /* All of these writes are identical to AL2230 unless otherwise 105 * specified */ 106 static const struct zd_ioreq16 ioreqs_1[] = { 107 /* This one is 7230-specific, and happens before the rest */ 108 { ZD_CR240, 0x57 }, 109 { }, 110 111 { ZD_CR15, 0x20 }, { ZD_CR23, 0x40 }, { ZD_CR24, 0x20 }, 112 { ZD_CR26, 0x11 }, { ZD_CR28, 0x3e }, { ZD_CR29, 0x00 }, 113 { ZD_CR44, 0x33 }, 114 /* This value is different for 7230 (was: 0x2a) */ 115 { ZD_CR106, 0x22 }, 116 { ZD_CR107, 0x1a }, { ZD_CR109, 0x09 }, { ZD_CR110, 0x27 }, 117 { ZD_CR111, 0x2b }, { ZD_CR112, 0x2b }, { ZD_CR119, 0x0a }, 118 /* This happened further down in AL2230, 119 * and the value changed (was: 0xe0) */ 120 { ZD_CR122, 0xfc }, 121 { ZD_CR10, 0x89 }, 122 /* for newest (3rd cut) AL2300 */ 123 { ZD_CR17, 0x28 }, 124 { ZD_CR26, 0x93 }, { ZD_CR34, 0x30 }, 125 /* for newest (3rd cut) AL2300 */ 126 { ZD_CR35, 0x3e }, 127 { ZD_CR41, 0x24 }, { ZD_CR44, 0x32 }, 128 /* for newest (3rd cut) AL2300 */ 129 { ZD_CR46, 0x96 }, 130 { ZD_CR47, 0x1e }, { ZD_CR79, 0x58 }, { ZD_CR80, 0x30 }, 131 { ZD_CR81, 0x30 }, { ZD_CR87, 0x0a }, { ZD_CR89, 0x04 }, 132 { ZD_CR92, 0x0a }, { ZD_CR99, 0x28 }, 133 /* This value is different for 7230 (was: 0x00) */ 134 { ZD_CR100, 0x02 }, 135 { ZD_CR101, 0x13 }, { ZD_CR102, 0x27 }, 136 /* This value is different for 7230 (was: 0x24) */ 137 { ZD_CR106, 0x22 }, 138 /* This value is different for 7230 (was: 0x2a) */ 139 { ZD_CR107, 0x3f }, 140 { ZD_CR109, 0x09 }, 141 /* This value is different for 7230 (was: 0x13) */ 142 { ZD_CR110, 0x1f }, 143 { ZD_CR111, 0x1f }, { ZD_CR112, 0x1f }, { ZD_CR113, 0x27 }, 144 { ZD_CR114, 0x27 }, 145 /* for newest (3rd cut) AL2300 */ 146 { ZD_CR115, 0x24 }, 147 /* This value is different for 7230 (was: 0x24) */ 148 { ZD_CR116, 0x3f }, 149 /* This value is different for 7230 (was: 0xf4) */ 150 { ZD_CR117, 0xfa }, 151 { ZD_CR118, 0xfc }, { ZD_CR119, 0x10 }, { ZD_CR120, 0x4f }, 152 { ZD_CR121, 0x77 }, { ZD_CR137, 0x88 }, 153 /* This one is 7230-specific */ 154 { ZD_CR138, 0xa8 }, 155 /* This value is different for 7230 (was: 0xff) */ 156 { ZD_CR252, 0x34 }, 157 /* This value is different for 7230 (was: 0xff) */ 158 { ZD_CR253, 0x34 }, 159 160 /* PLL_OFF */ 161 { ZD_CR251, 0x2f }, 162 }; 163 164 static const struct zd_ioreq16 ioreqs_2[] = { 165 { ZD_CR251, 0x3f }, /* PLL_ON */ 166 { ZD_CR128, 0x14 }, { ZD_CR129, 0x12 }, { ZD_CR130, 0x10 }, 167 { ZD_CR38, 0x38 }, { ZD_CR136, 0xdf }, 168 }; 169 170 r = zd_iowrite16a_locked(chip, ioreqs_1, ARRAY_SIZE(ioreqs_1)); 171 if (r) 172 return r; 173 174 r = zd_rfwritev_cr_locked(chip, chan_rv[0], ARRAY_SIZE(chan_rv[0])); 175 if (r) 176 return r; 177 178 r = zd_rfwritev_cr_locked(chip, std_rv, ARRAY_SIZE(std_rv)); 179 if (r) 180 return r; 181 182 r = zd_rfwritev_cr_locked(chip, rv_init1, ARRAY_SIZE(rv_init1)); 183 if (r) 184 return r; 185 186 r = zd_iowrite16a_locked(chip, ioreqs_2, ARRAY_SIZE(ioreqs_2)); 187 if (r) 188 return r; 189 190 r = zd_rfwritev_cr_locked(chip, rv_init2, ARRAY_SIZE(rv_init2)); 191 if (r) 192 return r; 193 194 r = zd_iowrite16_locked(chip, 0x06, ZD_CR203); 195 if (r) 196 return r; 197 r = zd_iowrite16_locked(chip, 0x80, ZD_CR240); 198 if (r) 199 return r; 200 201 return 0; 202 } 203 204 static int zd1211b_al7230b_init_hw(struct zd_rf *rf) 205 { 206 int r; 207 struct zd_chip *chip = zd_rf_to_chip(rf); 208 209 static const struct zd_ioreq16 ioreqs_1[] = { 210 { ZD_CR240, 0x57 }, { ZD_CR9, 0x9 }, 211 { }, 212 { ZD_CR10, 0x8b }, { ZD_CR15, 0x20 }, 213 { ZD_CR17, 0x2B }, /* for newest (3rd cut) AL2230 */ 214 { ZD_CR20, 0x10 }, /* 4N25->Stone Request */ 215 { ZD_CR23, 0x40 }, { ZD_CR24, 0x20 }, { ZD_CR26, 0x93 }, 216 { ZD_CR28, 0x3e }, { ZD_CR29, 0x00 }, 217 { ZD_CR33, 0x28 }, /* 5613 */ 218 { ZD_CR34, 0x30 }, 219 { ZD_CR35, 0x3e }, /* for newest (3rd cut) AL2230 */ 220 { ZD_CR41, 0x24 }, { ZD_CR44, 0x32 }, 221 { ZD_CR46, 0x99 }, /* for newest (3rd cut) AL2230 */ 222 { ZD_CR47, 0x1e }, 223 224 /* ZD1215 5610 */ 225 { ZD_CR48, 0x00 }, { ZD_CR49, 0x00 }, { ZD_CR51, 0x01 }, 226 { ZD_CR52, 0x80 }, { ZD_CR53, 0x7e }, { ZD_CR65, 0x00 }, 227 { ZD_CR66, 0x00 }, { ZD_CR67, 0x00 }, { ZD_CR68, 0x00 }, 228 { ZD_CR69, 0x28 }, 229 230 { ZD_CR79, 0x58 }, { ZD_CR80, 0x30 }, { ZD_CR81, 0x30 }, 231 { ZD_CR87, 0x0A }, { ZD_CR89, 0x04 }, 232 { ZD_CR90, 0x58 }, /* 5112 */ 233 { ZD_CR91, 0x00 }, /* 5613 */ 234 { ZD_CR92, 0x0a }, 235 { ZD_CR98, 0x8d }, /* 4804, for 1212 new algorithm */ 236 { ZD_CR99, 0x00 }, { ZD_CR100, 0x02 }, { ZD_CR101, 0x13 }, 237 { ZD_CR102, 0x27 }, 238 { ZD_CR106, 0x20 }, /* change to 0x24 for AL7230B */ 239 { ZD_CR109, 0x13 }, /* 4804, for 1212 new algorithm */ 240 { ZD_CR112, 0x1f }, 241 }; 242 243 static const struct zd_ioreq16 ioreqs_new_phy[] = { 244 { ZD_CR107, 0x28 }, 245 { ZD_CR110, 0x1f }, /* 5127, 0x13->0x1f */ 246 { ZD_CR111, 0x1f }, /* 0x13 to 0x1f for AL7230B */ 247 { ZD_CR116, 0x2a }, { ZD_CR118, 0xfa }, { ZD_CR119, 0x12 }, 248 { ZD_CR121, 0x6c }, /* 5613 */ 249 }; 250 251 static const struct zd_ioreq16 ioreqs_old_phy[] = { 252 { ZD_CR107, 0x24 }, 253 { ZD_CR110, 0x13 }, /* 5127, 0x13->0x1f */ 254 { ZD_CR111, 0x13 }, /* 0x13 to 0x1f for AL7230B */ 255 { ZD_CR116, 0x24 }, { ZD_CR118, 0xfc }, { ZD_CR119, 0x11 }, 256 { ZD_CR121, 0x6a }, /* 5613 */ 257 }; 258 259 static const struct zd_ioreq16 ioreqs_2[] = { 260 { ZD_CR113, 0x27 }, { ZD_CR114, 0x27 }, { ZD_CR115, 0x24 }, 261 { ZD_CR117, 0xfa }, { ZD_CR120, 0x4f }, 262 { ZD_CR122, 0xfc }, /* E0->FCh at 4901 */ 263 { ZD_CR123, 0x57 }, /* 5613 */ 264 { ZD_CR125, 0xad }, /* 4804, for 1212 new algorithm */ 265 { ZD_CR126, 0x6c }, /* 5613 */ 266 { ZD_CR127, 0x03 }, /* 4804, for 1212 new algorithm */ 267 { ZD_CR130, 0x10 }, 268 { ZD_CR131, 0x00 }, /* 5112 */ 269 { ZD_CR137, 0x50 }, /* 5613 */ 270 { ZD_CR138, 0xa8 }, /* 5112 */ 271 { ZD_CR144, 0xac }, /* 5613 */ 272 { ZD_CR148, 0x40 }, /* 5112 */ 273 { ZD_CR149, 0x40 }, /* 4O07, 50->40 */ 274 { ZD_CR150, 0x1a }, /* 5112, 0C->1A */ 275 { ZD_CR252, 0x34 }, { ZD_CR253, 0x34 }, 276 { ZD_CR251, 0x2f }, /* PLL_OFF */ 277 }; 278 279 static const struct zd_ioreq16 ioreqs_3[] = { 280 { ZD_CR251, 0x7f }, /* PLL_ON */ 281 { ZD_CR128, 0x14 }, { ZD_CR129, 0x12 }, { ZD_CR130, 0x10 }, 282 { ZD_CR38, 0x38 }, { ZD_CR136, 0xdf }, 283 }; 284 285 r = zd_iowrite16a_locked(chip, ioreqs_1, ARRAY_SIZE(ioreqs_1)); 286 if (r) 287 return r; 288 289 if (chip->new_phy_layout) 290 r = zd_iowrite16a_locked(chip, ioreqs_new_phy, 291 ARRAY_SIZE(ioreqs_new_phy)); 292 else 293 r = zd_iowrite16a_locked(chip, ioreqs_old_phy, 294 ARRAY_SIZE(ioreqs_old_phy)); 295 if (r) 296 return r; 297 298 r = zd_iowrite16a_locked(chip, ioreqs_2, ARRAY_SIZE(ioreqs_2)); 299 if (r) 300 return r; 301 302 r = zd_rfwritev_cr_locked(chip, chan_rv[0], ARRAY_SIZE(chan_rv[0])); 303 if (r) 304 return r; 305 306 r = zd_rfwritev_cr_locked(chip, std_rv, ARRAY_SIZE(std_rv)); 307 if (r) 308 return r; 309 310 r = zd_rfwritev_cr_locked(chip, rv_init1, ARRAY_SIZE(rv_init1)); 311 if (r) 312 return r; 313 314 r = zd_iowrite16a_locked(chip, ioreqs_3, ARRAY_SIZE(ioreqs_3)); 315 if (r) 316 return r; 317 318 r = zd_rfwritev_cr_locked(chip, rv_init2, ARRAY_SIZE(rv_init2)); 319 if (r) 320 return r; 321 322 return zd1211b_al7230b_finalize(chip); 323 } 324 325 static int zd1211_al7230b_set_channel(struct zd_rf *rf, u8 channel) 326 { 327 int r; 328 const u32 *rv = chan_rv[channel-1]; 329 struct zd_chip *chip = zd_rf_to_chip(rf); 330 331 static const struct zd_ioreq16 ioreqs[] = { 332 /* PLL_ON */ 333 { ZD_CR251, 0x3f }, 334 { ZD_CR203, 0x06 }, { ZD_CR240, 0x08 }, 335 }; 336 337 r = zd_iowrite16_locked(chip, 0x57, ZD_CR240); 338 if (r) 339 return r; 340 341 /* PLL_OFF */ 342 r = zd_iowrite16_locked(chip, 0x2f, ZD_CR251); 343 if (r) 344 return r; 345 346 r = zd_rfwritev_cr_locked(chip, std_rv, ARRAY_SIZE(std_rv)); 347 if (r) 348 return r; 349 350 r = zd_rfwrite_cr_locked(chip, 0x3c9000); 351 if (r) 352 return r; 353 r = zd_rfwrite_cr_locked(chip, 0xf15d58); 354 if (r) 355 return r; 356 357 r = zd_iowrite16a_locked(chip, ioreqs_sw, ARRAY_SIZE(ioreqs_sw)); 358 if (r) 359 return r; 360 361 r = zd_rfwritev_cr_locked(chip, rv, 2); 362 if (r) 363 return r; 364 365 r = zd_rfwrite_cr_locked(chip, 0x3c9000); 366 if (r) 367 return r; 368 369 return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); 370 } 371 372 static int zd1211b_al7230b_set_channel(struct zd_rf *rf, u8 channel) 373 { 374 int r; 375 const u32 *rv = chan_rv[channel-1]; 376 struct zd_chip *chip = zd_rf_to_chip(rf); 377 378 r = zd_iowrite16_locked(chip, 0x57, ZD_CR240); 379 if (r) 380 return r; 381 r = zd_iowrite16_locked(chip, 0xe4, ZD_CR9); 382 if (r) 383 return r; 384 385 /* PLL_OFF */ 386 r = zd_iowrite16_locked(chip, 0x2f, ZD_CR251); 387 if (r) 388 return r; 389 r = zd_rfwritev_cr_locked(chip, std_rv, ARRAY_SIZE(std_rv)); 390 if (r) 391 return r; 392 393 r = zd_rfwrite_cr_locked(chip, 0x3c9000); 394 if (r) 395 return r; 396 r = zd_rfwrite_cr_locked(chip, 0xf15d58); 397 if (r) 398 return r; 399 400 r = zd_iowrite16a_locked(chip, ioreqs_sw, ARRAY_SIZE(ioreqs_sw)); 401 if (r) 402 return r; 403 404 r = zd_rfwritev_cr_locked(chip, rv, 2); 405 if (r) 406 return r; 407 408 r = zd_rfwrite_cr_locked(chip, 0x3c9000); 409 if (r) 410 return r; 411 412 r = zd_iowrite16_locked(chip, 0x7f, ZD_CR251); 413 if (r) 414 return r; 415 416 return zd1211b_al7230b_finalize(chip); 417 } 418 419 static int zd1211_al7230b_switch_radio_on(struct zd_rf *rf) 420 { 421 struct zd_chip *chip = zd_rf_to_chip(rf); 422 static const struct zd_ioreq16 ioreqs[] = { 423 { ZD_CR11, 0x00 }, 424 { ZD_CR251, 0x3f }, 425 }; 426 427 return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); 428 } 429 430 static int zd1211b_al7230b_switch_radio_on(struct zd_rf *rf) 431 { 432 struct zd_chip *chip = zd_rf_to_chip(rf); 433 static const struct zd_ioreq16 ioreqs[] = { 434 { ZD_CR11, 0x00 }, 435 { ZD_CR251, 0x7f }, 436 }; 437 438 return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); 439 } 440 441 static int al7230b_switch_radio_off(struct zd_rf *rf) 442 { 443 struct zd_chip *chip = zd_rf_to_chip(rf); 444 static const struct zd_ioreq16 ioreqs[] = { 445 { ZD_CR11, 0x04 }, 446 { ZD_CR251, 0x2f }, 447 }; 448 449 return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); 450 } 451 452 /* ZD1211B+AL7230B 6m band edge patching differs slightly from other 453 * configurations */ 454 static int zd1211b_al7230b_patch_6m(struct zd_rf *rf, u8 channel) 455 { 456 struct zd_chip *chip = zd_rf_to_chip(rf); 457 struct zd_ioreq16 ioreqs[] = { 458 { ZD_CR128, 0x14 }, { ZD_CR129, 0x12 }, 459 }; 460 461 /* FIXME: Channel 11 is not the edge for all regulatory domains. */ 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 } 473 474 int 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