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
zd1211b_al7230b_finalize(struct zd_chip * chip)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
zd1211_al7230b_init_hw(struct zd_rf * rf)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
zd1211b_al7230b_init_hw(struct zd_rf * rf)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
zd1211_al7230b_set_channel(struct zd_rf * rf,u8 channel)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
zd1211b_al7230b_set_channel(struct zd_rf * rf,u8 channel)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
zd1211_al7230b_switch_radio_on(struct zd_rf * rf)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
zd1211b_al7230b_switch_radio_on(struct zd_rf * rf)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
al7230b_switch_radio_off(struct zd_rf * rf)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 */
zd1211b_al7230b_patch_6m(struct zd_rf * rf,u8 channel)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
zd_rf_init_al7230b(struct zd_rf * rf)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
