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e85d0918 DD |
1 | /* zd_chip.c |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2 of the License, or | |
6 | * (at your option) any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
16 | */ | |
17 | ||
18 | /* This file implements all the hardware specific functions for the ZD1211 | |
19 | * and ZD1211B chips. Support for the ZD1211B was possible after Timothy | |
20 | * Legge sent me a ZD1211B device. Thank you Tim. -- Uli | |
21 | */ | |
22 | ||
23 | #include <linux/kernel.h> | |
24 | #include <linux/errno.h> | |
25 | ||
26 | #include "zd_def.h" | |
27 | #include "zd_chip.h" | |
28 | #include "zd_ieee80211.h" | |
29 | #include "zd_mac.h" | |
30 | #include "zd_rf.h" | |
31 | #include "zd_util.h" | |
32 | ||
33 | void zd_chip_init(struct zd_chip *chip, | |
34 | struct net_device *netdev, | |
35 | struct usb_interface *intf) | |
36 | { | |
37 | memset(chip, 0, sizeof(*chip)); | |
38 | mutex_init(&chip->mutex); | |
39 | zd_usb_init(&chip->usb, netdev, intf); | |
40 | zd_rf_init(&chip->rf); | |
41 | } | |
42 | ||
43 | void zd_chip_clear(struct zd_chip *chip) | |
44 | { | |
c48cf125 | 45 | ZD_ASSERT(!mutex_is_locked(&chip->mutex)); |
e85d0918 DD |
46 | zd_usb_clear(&chip->usb); |
47 | zd_rf_clear(&chip->rf); | |
e85d0918 | 48 | mutex_destroy(&chip->mutex); |
c48cf125 | 49 | ZD_MEMCLEAR(chip, sizeof(*chip)); |
e85d0918 DD |
50 | } |
51 | ||
74553aed | 52 | static int scnprint_mac_oui(struct zd_chip *chip, char *buffer, size_t size) |
e85d0918 | 53 | { |
74553aed | 54 | u8 *addr = zd_usb_to_netdev(&chip->usb)->dev_addr; |
e85d0918 DD |
55 | return scnprintf(buffer, size, "%02x-%02x-%02x", |
56 | addr[0], addr[1], addr[2]); | |
57 | } | |
58 | ||
59 | /* Prints an identifier line, which will support debugging. */ | |
60 | static int scnprint_id(struct zd_chip *chip, char *buffer, size_t size) | |
61 | { | |
62 | int i = 0; | |
63 | ||
64 | i = scnprintf(buffer, size, "zd1211%s chip ", | |
74553aed | 65 | zd_chip_is_zd1211b(chip) ? "b" : ""); |
e85d0918 DD |
66 | i += zd_usb_scnprint_id(&chip->usb, buffer+i, size-i); |
67 | i += scnprintf(buffer+i, size-i, " "); | |
74553aed | 68 | i += scnprint_mac_oui(chip, buffer+i, size-i); |
e85d0918 DD |
69 | i += scnprintf(buffer+i, size-i, " "); |
70 | i += zd_rf_scnprint_id(&chip->rf, buffer+i, size-i); | |
f2a81a16 | 71 | i += scnprintf(buffer+i, size-i, " pa%1x %c%c%c%c%c", chip->pa_type, |
e85d0918 DD |
72 | chip->patch_cck_gain ? 'g' : '-', |
73 | chip->patch_cr157 ? '7' : '-', | |
20fe2176 | 74 | chip->patch_6m_band_edge ? '6' : '-', |
f2a81a16 DD |
75 | chip->new_phy_layout ? 'N' : '-', |
76 | chip->al2230s_bit ? 'S' : '-'); | |
e85d0918 DD |
77 | return i; |
78 | } | |
79 | ||
80 | static void print_id(struct zd_chip *chip) | |
81 | { | |
82 | char buffer[80]; | |
83 | ||
84 | scnprint_id(chip, buffer, sizeof(buffer)); | |
85 | buffer[sizeof(buffer)-1] = 0; | |
86 | dev_info(zd_chip_dev(chip), "%s\n", buffer); | |
87 | } | |
88 | ||
0ce34bc8 DD |
89 | static zd_addr_t inc_addr(zd_addr_t addr) |
90 | { | |
91 | u16 a = (u16)addr; | |
92 | /* Control registers use byte addressing, but everything else uses word | |
93 | * addressing. */ | |
94 | if ((a & 0xf000) == CR_START) | |
95 | a += 2; | |
96 | else | |
97 | a += 1; | |
98 | return (zd_addr_t)a; | |
99 | } | |
100 | ||
e85d0918 DD |
101 | /* Read a variable number of 32-bit values. Parameter count is not allowed to |
102 | * exceed USB_MAX_IOREAD32_COUNT. | |
103 | */ | |
104 | int zd_ioread32v_locked(struct zd_chip *chip, u32 *values, const zd_addr_t *addr, | |
105 | unsigned int count) | |
106 | { | |
107 | int r; | |
108 | int i; | |
109 | zd_addr_t *a16 = (zd_addr_t *)NULL; | |
110 | u16 *v16; | |
111 | unsigned int count16; | |
112 | ||
113 | if (count > USB_MAX_IOREAD32_COUNT) | |
114 | return -EINVAL; | |
115 | ||
116 | /* Allocate a single memory block for values and addresses. */ | |
117 | count16 = 2*count; | |
44956855 | 118 | a16 = (zd_addr_t *) kmalloc(count16 * (sizeof(zd_addr_t) + sizeof(u16)), |
35c3404e | 119 | GFP_KERNEL); |
e85d0918 DD |
120 | if (!a16) { |
121 | dev_dbg_f(zd_chip_dev(chip), | |
122 | "error ENOMEM in allocation of a16\n"); | |
123 | r = -ENOMEM; | |
124 | goto out; | |
125 | } | |
126 | v16 = (u16 *)(a16 + count16); | |
127 | ||
128 | for (i = 0; i < count; i++) { | |
129 | int j = 2*i; | |
130 | /* We read the high word always first. */ | |
0ce34bc8 | 131 | a16[j] = inc_addr(addr[i]); |
e85d0918 DD |
132 | a16[j+1] = addr[i]; |
133 | } | |
134 | ||
135 | r = zd_ioread16v_locked(chip, v16, a16, count16); | |
136 | if (r) { | |
137 | dev_dbg_f(zd_chip_dev(chip), | |
138 | "error: zd_ioread16v_locked. Error number %d\n", r); | |
139 | goto out; | |
140 | } | |
141 | ||
142 | for (i = 0; i < count; i++) { | |
143 | int j = 2*i; | |
144 | values[i] = (v16[j] << 16) | v16[j+1]; | |
145 | } | |
146 | ||
147 | out: | |
148 | kfree((void *)a16); | |
149 | return r; | |
150 | } | |
151 | ||
152 | int _zd_iowrite32v_locked(struct zd_chip *chip, const struct zd_ioreq32 *ioreqs, | |
153 | unsigned int count) | |
154 | { | |
155 | int i, j, r; | |
156 | struct zd_ioreq16 *ioreqs16; | |
157 | unsigned int count16; | |
158 | ||
159 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
160 | ||
161 | if (count == 0) | |
162 | return 0; | |
163 | if (count > USB_MAX_IOWRITE32_COUNT) | |
164 | return -EINVAL; | |
165 | ||
166 | /* Allocate a single memory block for values and addresses. */ | |
167 | count16 = 2*count; | |
35c3404e | 168 | ioreqs16 = kmalloc(count16 * sizeof(struct zd_ioreq16), GFP_KERNEL); |
e85d0918 DD |
169 | if (!ioreqs16) { |
170 | r = -ENOMEM; | |
171 | dev_dbg_f(zd_chip_dev(chip), | |
172 | "error %d in ioreqs16 allocation\n", r); | |
173 | goto out; | |
174 | } | |
175 | ||
176 | for (i = 0; i < count; i++) { | |
177 | j = 2*i; | |
178 | /* We write the high word always first. */ | |
179 | ioreqs16[j].value = ioreqs[i].value >> 16; | |
0ce34bc8 | 180 | ioreqs16[j].addr = inc_addr(ioreqs[i].addr); |
e85d0918 DD |
181 | ioreqs16[j+1].value = ioreqs[i].value; |
182 | ioreqs16[j+1].addr = ioreqs[i].addr; | |
183 | } | |
184 | ||
185 | r = zd_usb_iowrite16v(&chip->usb, ioreqs16, count16); | |
186 | #ifdef DEBUG | |
187 | if (r) { | |
188 | dev_dbg_f(zd_chip_dev(chip), | |
189 | "error %d in zd_usb_write16v\n", r); | |
190 | } | |
191 | #endif /* DEBUG */ | |
192 | out: | |
193 | kfree(ioreqs16); | |
194 | return r; | |
195 | } | |
196 | ||
197 | int zd_iowrite16a_locked(struct zd_chip *chip, | |
198 | const struct zd_ioreq16 *ioreqs, unsigned int count) | |
199 | { | |
200 | int r; | |
201 | unsigned int i, j, t, max; | |
202 | ||
203 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
204 | for (i = 0; i < count; i += j + t) { | |
205 | t = 0; | |
206 | max = count-i; | |
207 | if (max > USB_MAX_IOWRITE16_COUNT) | |
208 | max = USB_MAX_IOWRITE16_COUNT; | |
209 | for (j = 0; j < max; j++) { | |
210 | if (!ioreqs[i+j].addr) { | |
211 | t = 1; | |
212 | break; | |
213 | } | |
214 | } | |
215 | ||
216 | r = zd_usb_iowrite16v(&chip->usb, &ioreqs[i], j); | |
217 | if (r) { | |
218 | dev_dbg_f(zd_chip_dev(chip), | |
219 | "error zd_usb_iowrite16v. Error number %d\n", | |
220 | r); | |
221 | return r; | |
222 | } | |
223 | } | |
224 | ||
225 | return 0; | |
226 | } | |
227 | ||
228 | /* Writes a variable number of 32 bit registers. The functions will split | |
229 | * that in several USB requests. A split can be forced by inserting an IO | |
230 | * request with an zero address field. | |
231 | */ | |
232 | int zd_iowrite32a_locked(struct zd_chip *chip, | |
233 | const struct zd_ioreq32 *ioreqs, unsigned int count) | |
234 | { | |
235 | int r; | |
236 | unsigned int i, j, t, max; | |
237 | ||
238 | for (i = 0; i < count; i += j + t) { | |
239 | t = 0; | |
240 | max = count-i; | |
241 | if (max > USB_MAX_IOWRITE32_COUNT) | |
242 | max = USB_MAX_IOWRITE32_COUNT; | |
243 | for (j = 0; j < max; j++) { | |
244 | if (!ioreqs[i+j].addr) { | |
245 | t = 1; | |
246 | break; | |
247 | } | |
248 | } | |
249 | ||
250 | r = _zd_iowrite32v_locked(chip, &ioreqs[i], j); | |
251 | if (r) { | |
252 | dev_dbg_f(zd_chip_dev(chip), | |
253 | "error _zd_iowrite32v_locked." | |
254 | " Error number %d\n", r); | |
255 | return r; | |
256 | } | |
257 | } | |
258 | ||
259 | return 0; | |
260 | } | |
261 | ||
262 | int zd_ioread16(struct zd_chip *chip, zd_addr_t addr, u16 *value) | |
263 | { | |
264 | int r; | |
265 | ||
e85d0918 DD |
266 | mutex_lock(&chip->mutex); |
267 | r = zd_ioread16_locked(chip, value, addr); | |
268 | mutex_unlock(&chip->mutex); | |
269 | return r; | |
270 | } | |
271 | ||
272 | int zd_ioread32(struct zd_chip *chip, zd_addr_t addr, u32 *value) | |
273 | { | |
274 | int r; | |
275 | ||
e85d0918 DD |
276 | mutex_lock(&chip->mutex); |
277 | r = zd_ioread32_locked(chip, value, addr); | |
278 | mutex_unlock(&chip->mutex); | |
279 | return r; | |
280 | } | |
281 | ||
282 | int zd_iowrite16(struct zd_chip *chip, zd_addr_t addr, u16 value) | |
283 | { | |
284 | int r; | |
285 | ||
e85d0918 DD |
286 | mutex_lock(&chip->mutex); |
287 | r = zd_iowrite16_locked(chip, value, addr); | |
288 | mutex_unlock(&chip->mutex); | |
289 | return r; | |
290 | } | |
291 | ||
292 | int zd_iowrite32(struct zd_chip *chip, zd_addr_t addr, u32 value) | |
293 | { | |
294 | int r; | |
295 | ||
e85d0918 DD |
296 | mutex_lock(&chip->mutex); |
297 | r = zd_iowrite32_locked(chip, value, addr); | |
298 | mutex_unlock(&chip->mutex); | |
299 | return r; | |
300 | } | |
301 | ||
302 | int zd_ioread32v(struct zd_chip *chip, const zd_addr_t *addresses, | |
303 | u32 *values, unsigned int count) | |
304 | { | |
305 | int r; | |
306 | ||
e85d0918 DD |
307 | mutex_lock(&chip->mutex); |
308 | r = zd_ioread32v_locked(chip, values, addresses, count); | |
309 | mutex_unlock(&chip->mutex); | |
310 | return r; | |
311 | } | |
312 | ||
313 | int zd_iowrite32a(struct zd_chip *chip, const struct zd_ioreq32 *ioreqs, | |
314 | unsigned int count) | |
315 | { | |
316 | int r; | |
317 | ||
e85d0918 DD |
318 | mutex_lock(&chip->mutex); |
319 | r = zd_iowrite32a_locked(chip, ioreqs, count); | |
320 | mutex_unlock(&chip->mutex); | |
321 | return r; | |
322 | } | |
323 | ||
324 | static int read_pod(struct zd_chip *chip, u8 *rf_type) | |
325 | { | |
326 | int r; | |
327 | u32 value; | |
328 | ||
329 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
330 | r = zd_ioread32_locked(chip, &value, E2P_POD); | |
331 | if (r) | |
332 | goto error; | |
333 | dev_dbg_f(zd_chip_dev(chip), "E2P_POD %#010x\n", value); | |
334 | ||
335 | /* FIXME: AL2230 handling (Bit 7 in POD) */ | |
336 | *rf_type = value & 0x0f; | |
337 | chip->pa_type = (value >> 16) & 0x0f; | |
338 | chip->patch_cck_gain = (value >> 8) & 0x1; | |
339 | chip->patch_cr157 = (value >> 13) & 0x1; | |
340 | chip->patch_6m_band_edge = (value >> 21) & 0x1; | |
20fe2176 | 341 | chip->new_phy_layout = (value >> 31) & 0x1; |
ae6ead46 | 342 | chip->al2230s_bit = (value >> 7) & 0x1; |
583afd1e UK |
343 | chip->link_led = ((value >> 4) & 1) ? LED1 : LED2; |
344 | chip->supports_tx_led = 1; | |
345 | if (value & (1 << 24)) { /* LED scenario */ | |
346 | if (value & (1 << 29)) | |
347 | chip->supports_tx_led = 0; | |
348 | } | |
e85d0918 DD |
349 | |
350 | dev_dbg_f(zd_chip_dev(chip), | |
351 | "RF %s %#01x PA type %#01x patch CCK %d patch CR157 %d " | |
583afd1e | 352 | "patch 6M %d new PHY %d link LED%d tx led %d\n", |
e85d0918 DD |
353 | zd_rf_name(*rf_type), *rf_type, |
354 | chip->pa_type, chip->patch_cck_gain, | |
583afd1e UK |
355 | chip->patch_cr157, chip->patch_6m_band_edge, |
356 | chip->new_phy_layout, | |
357 | chip->link_led == LED1 ? 1 : 2, | |
358 | chip->supports_tx_led); | |
e85d0918 DD |
359 | return 0; |
360 | error: | |
361 | *rf_type = 0; | |
362 | chip->pa_type = 0; | |
363 | chip->patch_cck_gain = 0; | |
364 | chip->patch_cr157 = 0; | |
365 | chip->patch_6m_band_edge = 0; | |
20fe2176 | 366 | chip->new_phy_layout = 0; |
e85d0918 DD |
367 | return r; |
368 | } | |
369 | ||
e85d0918 DD |
370 | /* MAC address: if custom mac addresses are to to be used CR_MAC_ADDR_P1 and |
371 | * CR_MAC_ADDR_P2 must be overwritten | |
372 | */ | |
e85d0918 DD |
373 | int zd_write_mac_addr(struct zd_chip *chip, const u8 *mac_addr) |
374 | { | |
375 | int r; | |
376 | struct zd_ioreq32 reqs[2] = { | |
377 | [0] = { .addr = CR_MAC_ADDR_P1 }, | |
378 | [1] = { .addr = CR_MAC_ADDR_P2 }, | |
379 | }; | |
380 | ||
381 | reqs[0].value = (mac_addr[3] << 24) | |
382 | | (mac_addr[2] << 16) | |
383 | | (mac_addr[1] << 8) | |
384 | | mac_addr[0]; | |
385 | reqs[1].value = (mac_addr[5] << 8) | |
386 | | mac_addr[4]; | |
387 | ||
388 | dev_dbg_f(zd_chip_dev(chip), | |
389 | "mac addr " MAC_FMT "\n", MAC_ARG(mac_addr)); | |
390 | ||
391 | mutex_lock(&chip->mutex); | |
392 | r = zd_iowrite32a_locked(chip, reqs, ARRAY_SIZE(reqs)); | |
e85d0918 DD |
393 | mutex_unlock(&chip->mutex); |
394 | return r; | |
395 | } | |
396 | ||
397 | int zd_read_regdomain(struct zd_chip *chip, u8 *regdomain) | |
398 | { | |
399 | int r; | |
400 | u32 value; | |
401 | ||
402 | mutex_lock(&chip->mutex); | |
403 | r = zd_ioread32_locked(chip, &value, E2P_SUBID); | |
404 | mutex_unlock(&chip->mutex); | |
405 | if (r) | |
406 | return r; | |
407 | ||
408 | *regdomain = value >> 16; | |
409 | dev_dbg_f(zd_chip_dev(chip), "regdomain: %#04x\n", *regdomain); | |
410 | ||
411 | return 0; | |
412 | } | |
413 | ||
414 | static int read_values(struct zd_chip *chip, u8 *values, size_t count, | |
415 | zd_addr_t e2p_addr, u32 guard) | |
416 | { | |
417 | int r; | |
418 | int i; | |
419 | u32 v; | |
420 | ||
421 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
422 | for (i = 0;;) { | |
0ce34bc8 DD |
423 | r = zd_ioread32_locked(chip, &v, |
424 | (zd_addr_t)((u16)e2p_addr+i/2)); | |
e85d0918 DD |
425 | if (r) |
426 | return r; | |
427 | v -= guard; | |
428 | if (i+4 < count) { | |
429 | values[i++] = v; | |
430 | values[i++] = v >> 8; | |
431 | values[i++] = v >> 16; | |
432 | values[i++] = v >> 24; | |
433 | continue; | |
434 | } | |
435 | for (;i < count; i++) | |
436 | values[i] = v >> (8*(i%3)); | |
437 | return 0; | |
438 | } | |
439 | } | |
440 | ||
441 | static int read_pwr_cal_values(struct zd_chip *chip) | |
442 | { | |
443 | return read_values(chip, chip->pwr_cal_values, | |
444 | E2P_CHANNEL_COUNT, E2P_PWR_CAL_VALUE1, | |
445 | 0); | |
446 | } | |
447 | ||
448 | static int read_pwr_int_values(struct zd_chip *chip) | |
449 | { | |
450 | return read_values(chip, chip->pwr_int_values, | |
451 | E2P_CHANNEL_COUNT, E2P_PWR_INT_VALUE1, | |
452 | E2P_PWR_INT_GUARD); | |
453 | } | |
454 | ||
455 | static int read_ofdm_cal_values(struct zd_chip *chip) | |
456 | { | |
457 | int r; | |
458 | int i; | |
459 | static const zd_addr_t addresses[] = { | |
460 | E2P_36M_CAL_VALUE1, | |
461 | E2P_48M_CAL_VALUE1, | |
462 | E2P_54M_CAL_VALUE1, | |
463 | }; | |
464 | ||
465 | for (i = 0; i < 3; i++) { | |
466 | r = read_values(chip, chip->ofdm_cal_values[i], | |
467 | E2P_CHANNEL_COUNT, addresses[i], 0); | |
468 | if (r) | |
469 | return r; | |
470 | } | |
471 | return 0; | |
472 | } | |
473 | ||
474 | static int read_cal_int_tables(struct zd_chip *chip) | |
475 | { | |
476 | int r; | |
477 | ||
478 | r = read_pwr_cal_values(chip); | |
479 | if (r) | |
480 | return r; | |
481 | r = read_pwr_int_values(chip); | |
482 | if (r) | |
483 | return r; | |
484 | r = read_ofdm_cal_values(chip); | |
485 | if (r) | |
486 | return r; | |
487 | return 0; | |
488 | } | |
489 | ||
490 | /* phy means physical registers */ | |
491 | int zd_chip_lock_phy_regs(struct zd_chip *chip) | |
492 | { | |
493 | int r; | |
494 | u32 tmp; | |
495 | ||
496 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
497 | r = zd_ioread32_locked(chip, &tmp, CR_REG1); | |
498 | if (r) { | |
499 | dev_err(zd_chip_dev(chip), "error ioread32(CR_REG1): %d\n", r); | |
500 | return r; | |
501 | } | |
502 | ||
e85d0918 DD |
503 | tmp &= ~UNLOCK_PHY_REGS; |
504 | ||
505 | r = zd_iowrite32_locked(chip, tmp, CR_REG1); | |
506 | if (r) | |
507 | dev_err(zd_chip_dev(chip), "error iowrite32(CR_REG1): %d\n", r); | |
508 | return r; | |
509 | } | |
510 | ||
511 | int zd_chip_unlock_phy_regs(struct zd_chip *chip) | |
512 | { | |
513 | int r; | |
514 | u32 tmp; | |
515 | ||
516 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
517 | r = zd_ioread32_locked(chip, &tmp, CR_REG1); | |
518 | if (r) { | |
519 | dev_err(zd_chip_dev(chip), | |
520 | "error ioread32(CR_REG1): %d\n", r); | |
521 | return r; | |
522 | } | |
523 | ||
e85d0918 DD |
524 | tmp |= UNLOCK_PHY_REGS; |
525 | ||
526 | r = zd_iowrite32_locked(chip, tmp, CR_REG1); | |
527 | if (r) | |
528 | dev_err(zd_chip_dev(chip), "error iowrite32(CR_REG1): %d\n", r); | |
529 | return r; | |
530 | } | |
531 | ||
92b3e2e9 | 532 | /* CR157 can be optionally patched by the EEPROM for original ZD1211 */ |
e85d0918 DD |
533 | static int patch_cr157(struct zd_chip *chip) |
534 | { | |
535 | int r; | |
92b3e2e9 | 536 | u16 value; |
e85d0918 DD |
537 | |
538 | if (!chip->patch_cr157) | |
539 | return 0; | |
540 | ||
92b3e2e9 | 541 | r = zd_ioread16_locked(chip, &value, E2P_PHY_REG); |
e85d0918 DD |
542 | if (r) |
543 | return r; | |
544 | ||
545 | dev_dbg_f(zd_chip_dev(chip), "patching value %x\n", value >> 8); | |
546 | return zd_iowrite32_locked(chip, value >> 8, CR157); | |
547 | } | |
548 | ||
549 | /* | |
550 | * 6M band edge can be optionally overwritten for certain RF's | |
551 | * Vendor driver says: for FCC regulation, enabled per HWFeature 6M band edge | |
552 | * bit (for AL2230, AL2230S) | |
553 | */ | |
72018b22 DD |
554 | static int patch_6m_band_edge(struct zd_chip *chip, u8 channel) |
555 | { | |
556 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
557 | if (!chip->patch_6m_band_edge) | |
558 | return 0; | |
559 | ||
560 | return zd_rf_patch_6m_band_edge(&chip->rf, channel); | |
561 | } | |
562 | ||
563 | /* Generic implementation of 6M band edge patching, used by most RFs via | |
564 | * zd_rf_generic_patch_6m() */ | |
565 | int zd_chip_generic_patch_6m_band(struct zd_chip *chip, int channel) | |
e85d0918 DD |
566 | { |
567 | struct zd_ioreq16 ioreqs[] = { | |
568 | { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 }, | |
569 | { CR47, 0x1e }, | |
570 | }; | |
571 | ||
e85d0918 DD |
572 | /* FIXME: Channel 11 is not the edge for all regulatory domains. */ |
573 | if (channel == 1 || channel == 11) | |
574 | ioreqs[0].value = 0x12; | |
575 | ||
576 | dev_dbg_f(zd_chip_dev(chip), "patching for channel %d\n", channel); | |
577 | return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); | |
578 | } | |
579 | ||
580 | static int zd1211_hw_reset_phy(struct zd_chip *chip) | |
581 | { | |
582 | static const struct zd_ioreq16 ioreqs[] = { | |
583 | { CR0, 0x0a }, { CR1, 0x06 }, { CR2, 0x26 }, | |
584 | { CR3, 0x38 }, { CR4, 0x80 }, { CR9, 0xa0 }, | |
585 | { CR10, 0x81 }, { CR11, 0x00 }, { CR12, 0x7f }, | |
586 | { CR13, 0x8c }, { CR14, 0x80 }, { CR15, 0x3d }, | |
587 | { CR16, 0x20 }, { CR17, 0x1e }, { CR18, 0x0a }, | |
588 | { CR19, 0x48 }, { CR20, 0x0c }, { CR21, 0x0c }, | |
589 | { CR22, 0x23 }, { CR23, 0x90 }, { CR24, 0x14 }, | |
590 | { CR25, 0x40 }, { CR26, 0x10 }, { CR27, 0x19 }, | |
591 | { CR28, 0x7f }, { CR29, 0x80 }, { CR30, 0x4b }, | |
592 | { CR31, 0x60 }, { CR32, 0x43 }, { CR33, 0x08 }, | |
593 | { CR34, 0x06 }, { CR35, 0x0a }, { CR36, 0x00 }, | |
594 | { CR37, 0x00 }, { CR38, 0x38 }, { CR39, 0x0c }, | |
595 | { CR40, 0x84 }, { CR41, 0x2a }, { CR42, 0x80 }, | |
596 | { CR43, 0x10 }, { CR44, 0x12 }, { CR46, 0xff }, | |
597 | { CR47, 0x1E }, { CR48, 0x26 }, { CR49, 0x5b }, | |
598 | { CR64, 0xd0 }, { CR65, 0x04 }, { CR66, 0x58 }, | |
599 | { CR67, 0xc9 }, { CR68, 0x88 }, { CR69, 0x41 }, | |
600 | { CR70, 0x23 }, { CR71, 0x10 }, { CR72, 0xff }, | |
601 | { CR73, 0x32 }, { CR74, 0x30 }, { CR75, 0x65 }, | |
602 | { CR76, 0x41 }, { CR77, 0x1b }, { CR78, 0x30 }, | |
603 | { CR79, 0x68 }, { CR80, 0x64 }, { CR81, 0x64 }, | |
604 | { CR82, 0x00 }, { CR83, 0x00 }, { CR84, 0x00 }, | |
605 | { CR85, 0x02 }, { CR86, 0x00 }, { CR87, 0x00 }, | |
606 | { CR88, 0xff }, { CR89, 0xfc }, { CR90, 0x00 }, | |
607 | { CR91, 0x00 }, { CR92, 0x00 }, { CR93, 0x08 }, | |
608 | { CR94, 0x00 }, { CR95, 0x00 }, { CR96, 0xff }, | |
609 | { CR97, 0xe7 }, { CR98, 0x00 }, { CR99, 0x00 }, | |
610 | { CR100, 0x00 }, { CR101, 0xae }, { CR102, 0x02 }, | |
611 | { CR103, 0x00 }, { CR104, 0x03 }, { CR105, 0x65 }, | |
612 | { CR106, 0x04 }, { CR107, 0x00 }, { CR108, 0x0a }, | |
613 | { CR109, 0xaa }, { CR110, 0xaa }, { CR111, 0x25 }, | |
614 | { CR112, 0x25 }, { CR113, 0x00 }, { CR119, 0x1e }, | |
615 | { CR125, 0x90 }, { CR126, 0x00 }, { CR127, 0x00 }, | |
616 | { }, | |
617 | { CR5, 0x00 }, { CR6, 0x00 }, { CR7, 0x00 }, | |
618 | { CR8, 0x00 }, { CR9, 0x20 }, { CR12, 0xf0 }, | |
619 | { CR20, 0x0e }, { CR21, 0x0e }, { CR27, 0x10 }, | |
620 | { CR44, 0x33 }, { CR47, 0x1E }, { CR83, 0x24 }, | |
621 | { CR84, 0x04 }, { CR85, 0x00 }, { CR86, 0x0C }, | |
622 | { CR87, 0x12 }, { CR88, 0x0C }, { CR89, 0x00 }, | |
623 | { CR90, 0x10 }, { CR91, 0x08 }, { CR93, 0x00 }, | |
624 | { CR94, 0x01 }, { CR95, 0x00 }, { CR96, 0x50 }, | |
625 | { CR97, 0x37 }, { CR98, 0x35 }, { CR101, 0x13 }, | |
626 | { CR102, 0x27 }, { CR103, 0x27 }, { CR104, 0x18 }, | |
627 | { CR105, 0x12 }, { CR109, 0x27 }, { CR110, 0x27 }, | |
628 | { CR111, 0x27 }, { CR112, 0x27 }, { CR113, 0x27 }, | |
629 | { CR114, 0x27 }, { CR115, 0x26 }, { CR116, 0x24 }, | |
630 | { CR117, 0xfc }, { CR118, 0xfa }, { CR120, 0x4f }, | |
dc536a70 DD |
631 | { CR125, 0xaa }, { CR127, 0x03 }, { CR128, 0x14 }, |
632 | { CR129, 0x12 }, { CR130, 0x10 }, { CR131, 0x0C }, | |
633 | { CR136, 0xdf }, { CR137, 0x40 }, { CR138, 0xa0 }, | |
634 | { CR139, 0xb0 }, { CR140, 0x99 }, { CR141, 0x82 }, | |
635 | { CR142, 0x54 }, { CR143, 0x1c }, { CR144, 0x6c }, | |
636 | { CR147, 0x07 }, { CR148, 0x4c }, { CR149, 0x50 }, | |
637 | { CR150, 0x0e }, { CR151, 0x18 }, { CR160, 0xfe }, | |
638 | { CR161, 0xee }, { CR162, 0xaa }, { CR163, 0xfa }, | |
639 | { CR164, 0xfa }, { CR165, 0xea }, { CR166, 0xbe }, | |
640 | { CR167, 0xbe }, { CR168, 0x6a }, { CR169, 0xba }, | |
641 | { CR170, 0xba }, { CR171, 0xba }, | |
e85d0918 DD |
642 | /* Note: CR204 must lead the CR203 */ |
643 | { CR204, 0x7d }, | |
644 | { }, | |
645 | { CR203, 0x30 }, | |
646 | }; | |
647 | ||
648 | int r, t; | |
649 | ||
650 | dev_dbg_f(zd_chip_dev(chip), "\n"); | |
651 | ||
652 | r = zd_chip_lock_phy_regs(chip); | |
653 | if (r) | |
654 | goto out; | |
655 | ||
656 | r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); | |
657 | if (r) | |
658 | goto unlock; | |
659 | ||
660 | r = patch_cr157(chip); | |
661 | unlock: | |
662 | t = zd_chip_unlock_phy_regs(chip); | |
663 | if (t && !r) | |
664 | r = t; | |
665 | out: | |
666 | return r; | |
667 | } | |
668 | ||
669 | static int zd1211b_hw_reset_phy(struct zd_chip *chip) | |
670 | { | |
671 | static const struct zd_ioreq16 ioreqs[] = { | |
672 | { CR0, 0x14 }, { CR1, 0x06 }, { CR2, 0x26 }, | |
673 | { CR3, 0x38 }, { CR4, 0x80 }, { CR9, 0xe0 }, | |
674 | { CR10, 0x81 }, | |
675 | /* power control { { CR11, 1 << 6 }, */ | |
676 | { CR11, 0x00 }, | |
677 | { CR12, 0xf0 }, { CR13, 0x8c }, { CR14, 0x80 }, | |
678 | { CR15, 0x3d }, { CR16, 0x20 }, { CR17, 0x1e }, | |
679 | { CR18, 0x0a }, { CR19, 0x48 }, | |
680 | { CR20, 0x10 }, /* Org:0x0E, ComTrend:RalLink AP */ | |
681 | { CR21, 0x0e }, { CR22, 0x23 }, { CR23, 0x90 }, | |
682 | { CR24, 0x14 }, { CR25, 0x40 }, { CR26, 0x10 }, | |
683 | { CR27, 0x10 }, { CR28, 0x7f }, { CR29, 0x80 }, | |
fe7215ca | 684 | { CR30, 0x4b }, /* ASIC/FWT, no jointly decoder */ |
e85d0918 DD |
685 | { CR31, 0x60 }, { CR32, 0x43 }, { CR33, 0x08 }, |
686 | { CR34, 0x06 }, { CR35, 0x0a }, { CR36, 0x00 }, | |
687 | { CR37, 0x00 }, { CR38, 0x38 }, { CR39, 0x0c }, | |
688 | { CR40, 0x84 }, { CR41, 0x2a }, { CR42, 0x80 }, | |
689 | { CR43, 0x10 }, { CR44, 0x33 }, { CR46, 0xff }, | |
690 | { CR47, 0x1E }, { CR48, 0x26 }, { CR49, 0x5b }, | |
691 | { CR64, 0xd0 }, { CR65, 0x04 }, { CR66, 0x58 }, | |
692 | { CR67, 0xc9 }, { CR68, 0x88 }, { CR69, 0x41 }, | |
693 | { CR70, 0x23 }, { CR71, 0x10 }, { CR72, 0xff }, | |
694 | { CR73, 0x32 }, { CR74, 0x30 }, { CR75, 0x65 }, | |
695 | { CR76, 0x41 }, { CR77, 0x1b }, { CR78, 0x30 }, | |
696 | { CR79, 0xf0 }, { CR80, 0x64 }, { CR81, 0x64 }, | |
697 | { CR82, 0x00 }, { CR83, 0x24 }, { CR84, 0x04 }, | |
698 | { CR85, 0x00 }, { CR86, 0x0c }, { CR87, 0x12 }, | |
699 | { CR88, 0x0c }, { CR89, 0x00 }, { CR90, 0x58 }, | |
700 | { CR91, 0x04 }, { CR92, 0x00 }, { CR93, 0x00 }, | |
701 | { CR94, 0x01 }, | |
702 | { CR95, 0x20 }, /* ZD1211B */ | |
703 | { CR96, 0x50 }, { CR97, 0x37 }, { CR98, 0x35 }, | |
704 | { CR99, 0x00 }, { CR100, 0x01 }, { CR101, 0x13 }, | |
705 | { CR102, 0x27 }, { CR103, 0x27 }, { CR104, 0x18 }, | |
706 | { CR105, 0x12 }, { CR106, 0x04 }, { CR107, 0x00 }, | |
707 | { CR108, 0x0a }, { CR109, 0x27 }, { CR110, 0x27 }, | |
708 | { CR111, 0x27 }, { CR112, 0x27 }, { CR113, 0x27 }, | |
709 | { CR114, 0x27 }, { CR115, 0x26 }, { CR116, 0x24 }, | |
710 | { CR117, 0xfc }, { CR118, 0xfa }, { CR119, 0x1e }, | |
711 | { CR125, 0x90 }, { CR126, 0x00 }, { CR127, 0x00 }, | |
712 | { CR128, 0x14 }, { CR129, 0x12 }, { CR130, 0x10 }, | |
713 | { CR131, 0x0c }, { CR136, 0xdf }, { CR137, 0xa0 }, | |
714 | { CR138, 0xa8 }, { CR139, 0xb4 }, { CR140, 0x98 }, | |
715 | { CR141, 0x82 }, { CR142, 0x53 }, { CR143, 0x1c }, | |
716 | { CR144, 0x6c }, { CR147, 0x07 }, { CR148, 0x40 }, | |
717 | { CR149, 0x40 }, /* Org:0x50 ComTrend:RalLink AP */ | |
718 | { CR150, 0x14 }, /* Org:0x0E ComTrend:RalLink AP */ | |
719 | { CR151, 0x18 }, { CR159, 0x70 }, { CR160, 0xfe }, | |
720 | { CR161, 0xee }, { CR162, 0xaa }, { CR163, 0xfa }, | |
721 | { CR164, 0xfa }, { CR165, 0xea }, { CR166, 0xbe }, | |
722 | { CR167, 0xbe }, { CR168, 0x6a }, { CR169, 0xba }, | |
723 | { CR170, 0xba }, { CR171, 0xba }, | |
724 | /* Note: CR204 must lead the CR203 */ | |
725 | { CR204, 0x7d }, | |
726 | {}, | |
727 | { CR203, 0x30 }, | |
728 | }; | |
729 | ||
730 | int r, t; | |
731 | ||
732 | dev_dbg_f(zd_chip_dev(chip), "\n"); | |
733 | ||
734 | r = zd_chip_lock_phy_regs(chip); | |
735 | if (r) | |
736 | goto out; | |
737 | ||
738 | r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); | |
e85d0918 DD |
739 | t = zd_chip_unlock_phy_regs(chip); |
740 | if (t && !r) | |
741 | r = t; | |
742 | out: | |
743 | return r; | |
744 | } | |
745 | ||
746 | static int hw_reset_phy(struct zd_chip *chip) | |
747 | { | |
74553aed | 748 | return zd_chip_is_zd1211b(chip) ? zd1211b_hw_reset_phy(chip) : |
e85d0918 DD |
749 | zd1211_hw_reset_phy(chip); |
750 | } | |
751 | ||
752 | static int zd1211_hw_init_hmac(struct zd_chip *chip) | |
753 | { | |
754 | static const struct zd_ioreq32 ioreqs[] = { | |
e85d0918 | 755 | { CR_ZD1211_RETRY_MAX, 0x2 }, |
e85d0918 | 756 | { CR_RX_THRESHOLD, 0x000c0640 }, |
e85d0918 DD |
757 | }; |
758 | ||
e85d0918 DD |
759 | dev_dbg_f(zd_chip_dev(chip), "\n"); |
760 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
34c44912 | 761 | return zd_iowrite32a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); |
e85d0918 DD |
762 | } |
763 | ||
764 | static int zd1211b_hw_init_hmac(struct zd_chip *chip) | |
765 | { | |
766 | static const struct zd_ioreq32 ioreqs[] = { | |
e85d0918 DD |
767 | { CR_ZD1211B_RETRY_MAX, 0x02020202 }, |
768 | { CR_ZD1211B_TX_PWR_CTL4, 0x007f003f }, | |
769 | { CR_ZD1211B_TX_PWR_CTL3, 0x007f003f }, | |
770 | { CR_ZD1211B_TX_PWR_CTL2, 0x003f001f }, | |
771 | { CR_ZD1211B_TX_PWR_CTL1, 0x001f000f }, | |
772 | { CR_ZD1211B_AIFS_CTL1, 0x00280028 }, | |
773 | { CR_ZD1211B_AIFS_CTL2, 0x008C003C }, | |
774 | { CR_ZD1211B_TXOP, 0x01800824 }, | |
34c44912 DD |
775 | { CR_RX_THRESHOLD, 0x000c0eff, }, |
776 | }; | |
777 | ||
778 | dev_dbg_f(zd_chip_dev(chip), "\n"); | |
779 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
780 | return zd_iowrite32a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); | |
781 | } | |
782 | ||
783 | static int hw_init_hmac(struct zd_chip *chip) | |
784 | { | |
785 | int r; | |
786 | static const struct zd_ioreq32 ioreqs[] = { | |
787 | { CR_ACK_TIMEOUT_EXT, 0x20 }, | |
788 | { CR_ADDA_MBIAS_WARMTIME, 0x30000808 }, | |
e85d0918 | 789 | { CR_SNIFFER_ON, 0 }, |
fde627b5 | 790 | { CR_RX_FILTER, STA_RX_FILTER }, |
e85d0918 DD |
791 | { CR_GROUP_HASH_P1, 0x00 }, |
792 | { CR_GROUP_HASH_P2, 0x80000000 }, | |
793 | { CR_REG1, 0xa4 }, | |
794 | { CR_ADDA_PWR_DWN, 0x7f }, | |
795 | { CR_BCN_PLCP_CFG, 0x00f00401 }, | |
796 | { CR_PHY_DELAY, 0x00 }, | |
797 | { CR_ACK_TIMEOUT_EXT, 0x80 }, | |
798 | { CR_ADDA_PWR_DWN, 0x00 }, | |
799 | { CR_ACK_TIME_80211, 0x100 }, | |
e85d0918 DD |
800 | { CR_RX_PE_DELAY, 0x70 }, |
801 | { CR_PS_CTRL, 0x10000000 }, | |
802 | { CR_RTS_CTS_RATE, 0x02030203 }, | |
e85d0918 DD |
803 | { CR_AFTER_PNP, 0x1 }, |
804 | { CR_WEP_PROTECT, 0x114 }, | |
34c44912 | 805 | { CR_IFS_VALUE, IFS_VALUE_DEFAULT }, |
e85d0918 DD |
806 | }; |
807 | ||
e85d0918 DD |
808 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); |
809 | r = zd_iowrite32a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); | |
34c44912 DD |
810 | if (r) |
811 | return r; | |
e85d0918 | 812 | |
74553aed | 813 | return zd_chip_is_zd1211b(chip) ? |
e85d0918 DD |
814 | zd1211b_hw_init_hmac(chip) : zd1211_hw_init_hmac(chip); |
815 | } | |
816 | ||
817 | struct aw_pt_bi { | |
818 | u32 atim_wnd_period; | |
819 | u32 pre_tbtt; | |
820 | u32 beacon_interval; | |
821 | }; | |
822 | ||
823 | static int get_aw_pt_bi(struct zd_chip *chip, struct aw_pt_bi *s) | |
824 | { | |
825 | int r; | |
826 | static const zd_addr_t aw_pt_bi_addr[] = | |
827 | { CR_ATIM_WND_PERIOD, CR_PRE_TBTT, CR_BCN_INTERVAL }; | |
828 | u32 values[3]; | |
829 | ||
830 | r = zd_ioread32v_locked(chip, values, (const zd_addr_t *)aw_pt_bi_addr, | |
831 | ARRAY_SIZE(aw_pt_bi_addr)); | |
832 | if (r) { | |
833 | memset(s, 0, sizeof(*s)); | |
834 | return r; | |
835 | } | |
836 | ||
837 | s->atim_wnd_period = values[0]; | |
838 | s->pre_tbtt = values[1]; | |
839 | s->beacon_interval = values[2]; | |
e85d0918 DD |
840 | return 0; |
841 | } | |
842 | ||
843 | static int set_aw_pt_bi(struct zd_chip *chip, struct aw_pt_bi *s) | |
844 | { | |
845 | struct zd_ioreq32 reqs[3]; | |
846 | ||
847 | if (s->beacon_interval <= 5) | |
848 | s->beacon_interval = 5; | |
849 | if (s->pre_tbtt < 4 || s->pre_tbtt >= s->beacon_interval) | |
850 | s->pre_tbtt = s->beacon_interval - 1; | |
851 | if (s->atim_wnd_period >= s->pre_tbtt) | |
852 | s->atim_wnd_period = s->pre_tbtt - 1; | |
853 | ||
854 | reqs[0].addr = CR_ATIM_WND_PERIOD; | |
855 | reqs[0].value = s->atim_wnd_period; | |
856 | reqs[1].addr = CR_PRE_TBTT; | |
857 | reqs[1].value = s->pre_tbtt; | |
858 | reqs[2].addr = CR_BCN_INTERVAL; | |
859 | reqs[2].value = s->beacon_interval; | |
860 | ||
e85d0918 DD |
861 | return zd_iowrite32a_locked(chip, reqs, ARRAY_SIZE(reqs)); |
862 | } | |
863 | ||
864 | ||
865 | static int set_beacon_interval(struct zd_chip *chip, u32 interval) | |
866 | { | |
867 | int r; | |
868 | struct aw_pt_bi s; | |
869 | ||
870 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
871 | r = get_aw_pt_bi(chip, &s); | |
872 | if (r) | |
873 | return r; | |
874 | s.beacon_interval = interval; | |
875 | return set_aw_pt_bi(chip, &s); | |
876 | } | |
877 | ||
878 | int zd_set_beacon_interval(struct zd_chip *chip, u32 interval) | |
879 | { | |
880 | int r; | |
881 | ||
882 | mutex_lock(&chip->mutex); | |
883 | r = set_beacon_interval(chip, interval); | |
884 | mutex_unlock(&chip->mutex); | |
885 | return r; | |
886 | } | |
887 | ||
888 | static int hw_init(struct zd_chip *chip) | |
889 | { | |
890 | int r; | |
891 | ||
892 | dev_dbg_f(zd_chip_dev(chip), "\n"); | |
893 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
894 | r = hw_reset_phy(chip); | |
895 | if (r) | |
896 | return r; | |
897 | ||
898 | r = hw_init_hmac(chip); | |
899 | if (r) | |
900 | return r; | |
98227a90 | 901 | |
98227a90 | 902 | return set_beacon_interval(chip, 100); |
e85d0918 DD |
903 | } |
904 | ||
0ce34bc8 DD |
905 | static zd_addr_t fw_reg_addr(struct zd_chip *chip, u16 offset) |
906 | { | |
907 | return (zd_addr_t)((u16)chip->fw_regs_base + offset); | |
908 | } | |
909 | ||
e85d0918 DD |
910 | #ifdef DEBUG |
911 | static int dump_cr(struct zd_chip *chip, const zd_addr_t addr, | |
912 | const char *addr_string) | |
913 | { | |
914 | int r; | |
915 | u32 value; | |
916 | ||
917 | r = zd_ioread32_locked(chip, &value, addr); | |
918 | if (r) { | |
919 | dev_dbg_f(zd_chip_dev(chip), | |
920 | "error reading %s. Error number %d\n", addr_string, r); | |
921 | return r; | |
922 | } | |
923 | ||
924 | dev_dbg_f(zd_chip_dev(chip), "%s %#010x\n", | |
925 | addr_string, (unsigned int)value); | |
926 | return 0; | |
927 | } | |
928 | ||
929 | static int test_init(struct zd_chip *chip) | |
930 | { | |
931 | int r; | |
932 | ||
933 | r = dump_cr(chip, CR_AFTER_PNP, "CR_AFTER_PNP"); | |
934 | if (r) | |
935 | return r; | |
936 | r = dump_cr(chip, CR_GPI_EN, "CR_GPI_EN"); | |
937 | if (r) | |
938 | return r; | |
939 | return dump_cr(chip, CR_INTERRUPT, "CR_INTERRUPT"); | |
940 | } | |
941 | ||
942 | static void dump_fw_registers(struct zd_chip *chip) | |
943 | { | |
0ce34bc8 DD |
944 | const zd_addr_t addr[4] = { |
945 | fw_reg_addr(chip, FW_REG_FIRMWARE_VER), | |
946 | fw_reg_addr(chip, FW_REG_USB_SPEED), | |
947 | fw_reg_addr(chip, FW_REG_FIX_TX_RATE), | |
948 | fw_reg_addr(chip, FW_REG_LED_LINK_STATUS), | |
e85d0918 DD |
949 | }; |
950 | ||
951 | int r; | |
952 | u16 values[4]; | |
953 | ||
954 | r = zd_ioread16v_locked(chip, values, (const zd_addr_t*)addr, | |
955 | ARRAY_SIZE(addr)); | |
956 | if (r) { | |
957 | dev_dbg_f(zd_chip_dev(chip), "error %d zd_ioread16v_locked\n", | |
958 | r); | |
959 | return; | |
960 | } | |
961 | ||
962 | dev_dbg_f(zd_chip_dev(chip), "FW_FIRMWARE_VER %#06hx\n", values[0]); | |
963 | dev_dbg_f(zd_chip_dev(chip), "FW_USB_SPEED %#06hx\n", values[1]); | |
964 | dev_dbg_f(zd_chip_dev(chip), "FW_FIX_TX_RATE %#06hx\n", values[2]); | |
965 | dev_dbg_f(zd_chip_dev(chip), "FW_LINK_STATUS %#06hx\n", values[3]); | |
966 | } | |
967 | #endif /* DEBUG */ | |
968 | ||
969 | static int print_fw_version(struct zd_chip *chip) | |
970 | { | |
971 | int r; | |
972 | u16 version; | |
973 | ||
0ce34bc8 DD |
974 | r = zd_ioread16_locked(chip, &version, |
975 | fw_reg_addr(chip, FW_REG_FIRMWARE_VER)); | |
e85d0918 DD |
976 | if (r) |
977 | return r; | |
978 | ||
979 | dev_info(zd_chip_dev(chip),"firmware version %04hx\n", version); | |
980 | return 0; | |
981 | } | |
982 | ||
983 | static int set_mandatory_rates(struct zd_chip *chip, enum ieee80211_std std) | |
984 | { | |
985 | u32 rates; | |
986 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
987 | /* This sets the mandatory rates, which only depend from the standard | |
988 | * that the device is supporting. Until further notice we should try | |
989 | * to support 802.11g also for full speed USB. | |
990 | */ | |
991 | switch (std) { | |
992 | case IEEE80211B: | |
993 | rates = CR_RATE_1M|CR_RATE_2M|CR_RATE_5_5M|CR_RATE_11M; | |
994 | break; | |
995 | case IEEE80211G: | |
996 | rates = CR_RATE_1M|CR_RATE_2M|CR_RATE_5_5M|CR_RATE_11M| | |
997 | CR_RATE_6M|CR_RATE_12M|CR_RATE_24M; | |
998 | break; | |
999 | default: | |
1000 | return -EINVAL; | |
1001 | } | |
1002 | return zd_iowrite32_locked(chip, rates, CR_MANDATORY_RATE_TBL); | |
1003 | } | |
1004 | ||
b1382ede DD |
1005 | int zd_chip_set_rts_cts_rate_locked(struct zd_chip *chip, |
1006 | u8 rts_rate, int preamble) | |
1007 | { | |
1008 | int rts_mod = ZD_RX_CCK; | |
1009 | u32 value = 0; | |
1010 | ||
1011 | /* Modulation bit */ | |
64f222cc | 1012 | if (ZD_MODULATION_TYPE(rts_rate) == ZD_OFDM) |
b1382ede DD |
1013 | rts_mod = ZD_RX_OFDM; |
1014 | ||
1015 | dev_dbg_f(zd_chip_dev(chip), "rts_rate=%x preamble=%x\n", | |
1016 | rts_rate, preamble); | |
1017 | ||
64f222cc | 1018 | value |= ZD_PURE_RATE(rts_rate) << RTSCTS_SH_RTS_RATE; |
b1382ede DD |
1019 | value |= rts_mod << RTSCTS_SH_RTS_MOD_TYPE; |
1020 | value |= preamble << RTSCTS_SH_RTS_PMB_TYPE; | |
1021 | value |= preamble << RTSCTS_SH_CTS_PMB_TYPE; | |
1022 | ||
1023 | /* We always send 11M self-CTS messages, like the vendor driver. */ | |
64f222cc | 1024 | value |= ZD_PURE_RATE(ZD_CCK_RATE_11M) << RTSCTS_SH_CTS_RATE; |
b1382ede DD |
1025 | value |= ZD_RX_CCK << RTSCTS_SH_CTS_MOD_TYPE; |
1026 | ||
1027 | return zd_iowrite32_locked(chip, value, CR_RTS_CTS_RATE); | |
1028 | } | |
1029 | ||
e85d0918 DD |
1030 | int zd_chip_enable_hwint(struct zd_chip *chip) |
1031 | { | |
1032 | int r; | |
1033 | ||
1034 | mutex_lock(&chip->mutex); | |
1035 | r = zd_iowrite32_locked(chip, HWINT_ENABLED, CR_INTERRUPT); | |
1036 | mutex_unlock(&chip->mutex); | |
1037 | return r; | |
1038 | } | |
1039 | ||
1040 | static int disable_hwint(struct zd_chip *chip) | |
1041 | { | |
1042 | return zd_iowrite32_locked(chip, HWINT_DISABLED, CR_INTERRUPT); | |
1043 | } | |
1044 | ||
1045 | int zd_chip_disable_hwint(struct zd_chip *chip) | |
1046 | { | |
1047 | int r; | |
1048 | ||
1049 | mutex_lock(&chip->mutex); | |
1050 | r = disable_hwint(chip); | |
1051 | mutex_unlock(&chip->mutex); | |
1052 | return r; | |
1053 | } | |
1054 | ||
0ce34bc8 DD |
1055 | static int read_fw_regs_offset(struct zd_chip *chip) |
1056 | { | |
1057 | int r; | |
1058 | ||
1059 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
1060 | r = zd_ioread16_locked(chip, (u16*)&chip->fw_regs_base, | |
1061 | FWRAW_REGS_ADDR); | |
1062 | if (r) | |
1063 | return r; | |
1064 | dev_dbg_f(zd_chip_dev(chip), "fw_regs_base: %#06hx\n", | |
1065 | (u16)chip->fw_regs_base); | |
1066 | ||
1067 | return 0; | |
1068 | } | |
1069 | ||
74553aed DD |
1070 | /* Read mac address using pre-firmware interface */ |
1071 | int zd_chip_read_mac_addr_fw(struct zd_chip *chip, u8 *addr) | |
1072 | { | |
1073 | dev_dbg_f(zd_chip_dev(chip), "\n"); | |
1074 | return zd_usb_read_fw(&chip->usb, E2P_MAC_ADDR_P1, addr, | |
1075 | ETH_ALEN); | |
1076 | } | |
0ce34bc8 | 1077 | |
74553aed | 1078 | int zd_chip_init_hw(struct zd_chip *chip) |
e85d0918 DD |
1079 | { |
1080 | int r; | |
1081 | u8 rf_type; | |
1082 | ||
1083 | dev_dbg_f(zd_chip_dev(chip), "\n"); | |
1084 | ||
1085 | mutex_lock(&chip->mutex); | |
e85d0918 DD |
1086 | |
1087 | #ifdef DEBUG | |
1088 | r = test_init(chip); | |
1089 | if (r) | |
1090 | goto out; | |
1091 | #endif | |
1092 | r = zd_iowrite32_locked(chip, 1, CR_AFTER_PNP); | |
1093 | if (r) | |
1094 | goto out; | |
1095 | ||
0ce34bc8 | 1096 | r = read_fw_regs_offset(chip); |
e85d0918 DD |
1097 | if (r) |
1098 | goto out; | |
1099 | ||
1100 | /* GPI is always disabled, also in the other driver. | |
1101 | */ | |
1102 | r = zd_iowrite32_locked(chip, 0, CR_GPI_EN); | |
1103 | if (r) | |
1104 | goto out; | |
1105 | r = zd_iowrite32_locked(chip, CWIN_SIZE, CR_CWMIN_CWMAX); | |
1106 | if (r) | |
1107 | goto out; | |
1108 | /* Currently we support IEEE 802.11g for full and high speed USB. | |
1109 | * It might be discussed, whether we should suppport pure b mode for | |
1110 | * full speed USB. | |
1111 | */ | |
1112 | r = set_mandatory_rates(chip, IEEE80211G); | |
1113 | if (r) | |
1114 | goto out; | |
1115 | /* Disabling interrupts is certainly a smart thing here. | |
1116 | */ | |
1117 | r = disable_hwint(chip); | |
1118 | if (r) | |
1119 | goto out; | |
1120 | r = read_pod(chip, &rf_type); | |
1121 | if (r) | |
1122 | goto out; | |
1123 | r = hw_init(chip); | |
1124 | if (r) | |
1125 | goto out; | |
1126 | r = zd_rf_init_hw(&chip->rf, rf_type); | |
1127 | if (r) | |
1128 | goto out; | |
1129 | ||
1130 | r = print_fw_version(chip); | |
1131 | if (r) | |
1132 | goto out; | |
1133 | ||
1134 | #ifdef DEBUG | |
1135 | dump_fw_registers(chip); | |
1136 | r = test_init(chip); | |
1137 | if (r) | |
1138 | goto out; | |
1139 | #endif /* DEBUG */ | |
1140 | ||
e85d0918 DD |
1141 | r = read_cal_int_tables(chip); |
1142 | if (r) | |
1143 | goto out; | |
1144 | ||
1145 | print_id(chip); | |
1146 | out: | |
1147 | mutex_unlock(&chip->mutex); | |
1148 | return r; | |
1149 | } | |
1150 | ||
1151 | static int update_pwr_int(struct zd_chip *chip, u8 channel) | |
1152 | { | |
1153 | u8 value = chip->pwr_int_values[channel - 1]; | |
cbb5e6bb | 1154 | return zd_iowrite16_locked(chip, value, CR31); |
e85d0918 DD |
1155 | } |
1156 | ||
1157 | static int update_pwr_cal(struct zd_chip *chip, u8 channel) | |
1158 | { | |
1159 | u8 value = chip->pwr_cal_values[channel-1]; | |
cbb5e6bb | 1160 | return zd_iowrite16_locked(chip, value, CR68); |
e85d0918 DD |
1161 | } |
1162 | ||
1163 | static int update_ofdm_cal(struct zd_chip *chip, u8 channel) | |
1164 | { | |
cbb5e6bb | 1165 | struct zd_ioreq16 ioreqs[3]; |
e85d0918 DD |
1166 | |
1167 | ioreqs[0].addr = CR67; | |
1168 | ioreqs[0].value = chip->ofdm_cal_values[OFDM_36M_INDEX][channel-1]; | |
1169 | ioreqs[1].addr = CR66; | |
1170 | ioreqs[1].value = chip->ofdm_cal_values[OFDM_48M_INDEX][channel-1]; | |
1171 | ioreqs[2].addr = CR65; | |
1172 | ioreqs[2].value = chip->ofdm_cal_values[OFDM_54M_INDEX][channel-1]; | |
1173 | ||
cbb5e6bb | 1174 | return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); |
e85d0918 DD |
1175 | } |
1176 | ||
1177 | static int update_channel_integration_and_calibration(struct zd_chip *chip, | |
1178 | u8 channel) | |
1179 | { | |
1180 | int r; | |
1181 | ||
9c8fc71d DD |
1182 | if (!zd_rf_should_update_pwr_int(&chip->rf)) |
1183 | return 0; | |
1184 | ||
e85d0918 DD |
1185 | r = update_pwr_int(chip, channel); |
1186 | if (r) | |
1187 | return r; | |
74553aed | 1188 | if (zd_chip_is_zd1211b(chip)) { |
cbb5e6bb | 1189 | static const struct zd_ioreq16 ioreqs[] = { |
e85d0918 DD |
1190 | { CR69, 0x28 }, |
1191 | {}, | |
1192 | { CR69, 0x2a }, | |
1193 | }; | |
1194 | ||
1195 | r = update_ofdm_cal(chip, channel); | |
1196 | if (r) | |
1197 | return r; | |
1198 | r = update_pwr_cal(chip, channel); | |
1199 | if (r) | |
1200 | return r; | |
cbb5e6bb | 1201 | r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); |
e85d0918 DD |
1202 | if (r) |
1203 | return r; | |
1204 | } | |
1205 | ||
1206 | return 0; | |
1207 | } | |
1208 | ||
1209 | /* The CCK baseband gain can be optionally patched by the EEPROM */ | |
1210 | static int patch_cck_gain(struct zd_chip *chip) | |
1211 | { | |
1212 | int r; | |
1213 | u32 value; | |
1214 | ||
aaf83d4f | 1215 | if (!chip->patch_cck_gain || !zd_rf_should_patch_cck_gain(&chip->rf)) |
e85d0918 DD |
1216 | return 0; |
1217 | ||
1218 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
1219 | r = zd_ioread32_locked(chip, &value, E2P_PHY_REG); | |
1220 | if (r) | |
1221 | return r; | |
1222 | dev_dbg_f(zd_chip_dev(chip), "patching value %x\n", value & 0xff); | |
cbb5e6bb | 1223 | return zd_iowrite16_locked(chip, value & 0xff, CR47); |
e85d0918 DD |
1224 | } |
1225 | ||
1226 | int zd_chip_set_channel(struct zd_chip *chip, u8 channel) | |
1227 | { | |
1228 | int r, t; | |
1229 | ||
1230 | mutex_lock(&chip->mutex); | |
1231 | r = zd_chip_lock_phy_regs(chip); | |
1232 | if (r) | |
1233 | goto out; | |
1234 | r = zd_rf_set_channel(&chip->rf, channel); | |
1235 | if (r) | |
1236 | goto unlock; | |
1237 | r = update_channel_integration_and_calibration(chip, channel); | |
1238 | if (r) | |
1239 | goto unlock; | |
1240 | r = patch_cck_gain(chip); | |
1241 | if (r) | |
1242 | goto unlock; | |
1243 | r = patch_6m_band_edge(chip, channel); | |
1244 | if (r) | |
1245 | goto unlock; | |
1246 | r = zd_iowrite32_locked(chip, 0, CR_CONFIG_PHILIPS); | |
1247 | unlock: | |
1248 | t = zd_chip_unlock_phy_regs(chip); | |
1249 | if (t && !r) | |
1250 | r = t; | |
1251 | out: | |
1252 | mutex_unlock(&chip->mutex); | |
1253 | return r; | |
1254 | } | |
1255 | ||
1256 | u8 zd_chip_get_channel(struct zd_chip *chip) | |
1257 | { | |
1258 | u8 channel; | |
1259 | ||
1260 | mutex_lock(&chip->mutex); | |
1261 | channel = chip->rf.channel; | |
1262 | mutex_unlock(&chip->mutex); | |
1263 | return channel; | |
1264 | } | |
1265 | ||
583afd1e | 1266 | int zd_chip_control_leds(struct zd_chip *chip, enum led_status status) |
e85d0918 | 1267 | { |
0ce34bc8 DD |
1268 | const zd_addr_t a[] = { |
1269 | fw_reg_addr(chip, FW_REG_LED_LINK_STATUS), | |
583afd1e UK |
1270 | CR_LED, |
1271 | }; | |
e85d0918 | 1272 | |
583afd1e UK |
1273 | int r; |
1274 | u16 v[ARRAY_SIZE(a)]; | |
1275 | struct zd_ioreq16 ioreqs[ARRAY_SIZE(a)] = { | |
0ce34bc8 | 1276 | [0] = { fw_reg_addr(chip, FW_REG_LED_LINK_STATUS) }, |
583afd1e UK |
1277 | [1] = { CR_LED }, |
1278 | }; | |
1279 | u16 other_led; | |
e85d0918 | 1280 | |
e85d0918 | 1281 | mutex_lock(&chip->mutex); |
583afd1e | 1282 | r = zd_ioread16v_locked(chip, v, (const zd_addr_t *)a, ARRAY_SIZE(a)); |
e85d0918 | 1283 | if (r) |
583afd1e UK |
1284 | goto out; |
1285 | ||
1286 | other_led = chip->link_led == LED1 ? LED2 : LED1; | |
1287 | ||
e85d0918 | 1288 | switch (status) { |
e85d0918 | 1289 | case LED_OFF: |
583afd1e UK |
1290 | ioreqs[0].value = FW_LINK_OFF; |
1291 | ioreqs[1].value = v[1] & ~(LED1|LED2); | |
e85d0918 | 1292 | break; |
583afd1e UK |
1293 | case LED_SCANNING: |
1294 | ioreqs[0].value = FW_LINK_OFF; | |
1295 | ioreqs[1].value = v[1] & ~other_led; | |
1296 | if (get_seconds() % 3 == 0) { | |
1297 | ioreqs[1].value &= ~chip->link_led; | |
1298 | } else { | |
1299 | ioreqs[1].value |= chip->link_led; | |
1300 | } | |
e85d0918 | 1301 | break; |
583afd1e UK |
1302 | case LED_ASSOCIATED: |
1303 | ioreqs[0].value = FW_LINK_TX; | |
1304 | ioreqs[1].value = v[1] & ~other_led; | |
1305 | ioreqs[1].value |= chip->link_led; | |
e85d0918 DD |
1306 | break; |
1307 | default: | |
583afd1e | 1308 | r = -EINVAL; |
e85d0918 DD |
1309 | goto out; |
1310 | } | |
e85d0918 | 1311 | |
583afd1e UK |
1312 | if (v[0] != ioreqs[0].value || v[1] != ioreqs[1].value) { |
1313 | r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); | |
1314 | if (r) | |
e85d0918 | 1315 | goto out; |
e85d0918 | 1316 | } |
583afd1e | 1317 | r = 0; |
e85d0918 | 1318 | out: |
583afd1e | 1319 | mutex_unlock(&chip->mutex); |
e85d0918 DD |
1320 | return r; |
1321 | } | |
1322 | ||
b1382ede | 1323 | int zd_chip_set_basic_rates_locked(struct zd_chip *chip, u16 cr_rates) |
e85d0918 | 1324 | { |
b1382ede DD |
1325 | ZD_ASSERT((cr_rates & ~(CR_RATES_80211B | CR_RATES_80211G)) == 0); |
1326 | dev_dbg_f(zd_chip_dev(chip), "%x\n", cr_rates); | |
e85d0918 | 1327 | |
b1382ede | 1328 | return zd_iowrite32_locked(chip, cr_rates, CR_BASIC_RATE_TBL); |
e85d0918 DD |
1329 | } |
1330 | ||
64f222cc | 1331 | static int ofdm_qual_db(u8 status_quality, u8 zd_rate, unsigned int size) |
e85d0918 DD |
1332 | { |
1333 | static const u16 constants[] = { | |
1334 | 715, 655, 585, 540, 470, 410, 360, 315, | |
1335 | 270, 235, 205, 175, 150, 125, 105, 85, | |
1336 | 65, 50, 40, 25, 15 | |
1337 | }; | |
1338 | ||
1339 | int i; | |
1340 | u32 x; | |
1341 | ||
1342 | /* It seems that their quality parameter is somehow per signal | |
1343 | * and is now transferred per bit. | |
1344 | */ | |
64f222cc | 1345 | switch (zd_rate) { |
e85d0918 DD |
1346 | case ZD_OFDM_RATE_6M: |
1347 | case ZD_OFDM_RATE_12M: | |
1348 | case ZD_OFDM_RATE_24M: | |
1349 | size *= 2; | |
1350 | break; | |
1351 | case ZD_OFDM_RATE_9M: | |
1352 | case ZD_OFDM_RATE_18M: | |
1353 | case ZD_OFDM_RATE_36M: | |
1354 | case ZD_OFDM_RATE_54M: | |
1355 | size *= 4; | |
1356 | size /= 3; | |
1357 | break; | |
1358 | case ZD_OFDM_RATE_48M: | |
1359 | size *= 3; | |
1360 | size /= 2; | |
1361 | break; | |
1362 | default: | |
1363 | return -EINVAL; | |
1364 | } | |
1365 | ||
1366 | x = (10000 * status_quality)/size; | |
1367 | for (i = 0; i < ARRAY_SIZE(constants); i++) { | |
1368 | if (x > constants[i]) | |
1369 | break; | |
1370 | } | |
1371 | ||
64f222cc | 1372 | switch (zd_rate) { |
db888aed UK |
1373 | case ZD_OFDM_RATE_6M: |
1374 | case ZD_OFDM_RATE_9M: | |
1375 | i += 3; | |
1376 | break; | |
1377 | case ZD_OFDM_RATE_12M: | |
1378 | case ZD_OFDM_RATE_18M: | |
1379 | i += 5; | |
1380 | break; | |
1381 | case ZD_OFDM_RATE_24M: | |
1382 | case ZD_OFDM_RATE_36M: | |
1383 | i += 9; | |
1384 | break; | |
1385 | case ZD_OFDM_RATE_48M: | |
1386 | case ZD_OFDM_RATE_54M: | |
1387 | i += 15; | |
1388 | break; | |
1389 | default: | |
1390 | return -EINVAL; | |
1391 | } | |
1392 | ||
e85d0918 DD |
1393 | return i; |
1394 | } | |
1395 | ||
64f222cc | 1396 | static int ofdm_qual_percent(u8 status_quality, u8 zd_rate, unsigned int size) |
db888aed UK |
1397 | { |
1398 | int r; | |
1399 | ||
64f222cc | 1400 | r = ofdm_qual_db(status_quality, zd_rate, size); |
db888aed UK |
1401 | ZD_ASSERT(r >= 0); |
1402 | if (r < 0) | |
1403 | r = 0; | |
1404 | ||
1405 | r = (r * 100)/29; | |
1406 | return r <= 100 ? r : 100; | |
1407 | } | |
1408 | ||
e85d0918 DD |
1409 | static unsigned int log10times100(unsigned int x) |
1410 | { | |
1411 | static const u8 log10[] = { | |
1412 | 0, | |
1413 | 0, 30, 47, 60, 69, 77, 84, 90, 95, 100, | |
1414 | 104, 107, 111, 114, 117, 120, 123, 125, 127, 130, | |
1415 | 132, 134, 136, 138, 139, 141, 143, 144, 146, 147, | |
1416 | 149, 150, 151, 153, 154, 155, 156, 157, 159, 160, | |
1417 | 161, 162, 163, 164, 165, 166, 167, 168, 169, 169, | |
1418 | 170, 171, 172, 173, 174, 174, 175, 176, 177, 177, | |
1419 | 178, 179, 179, 180, 181, 181, 182, 183, 183, 184, | |
1420 | 185, 185, 186, 186, 187, 188, 188, 189, 189, 190, | |
1421 | 190, 191, 191, 192, 192, 193, 193, 194, 194, 195, | |
1422 | 195, 196, 196, 197, 197, 198, 198, 199, 199, 200, | |
1423 | 200, 200, 201, 201, 202, 202, 202, 203, 203, 204, | |
1424 | 204, 204, 205, 205, 206, 206, 206, 207, 207, 207, | |
1425 | 208, 208, 208, 209, 209, 210, 210, 210, 211, 211, | |
1426 | 211, 212, 212, 212, 213, 213, 213, 213, 214, 214, | |
1427 | 214, 215, 215, 215, 216, 216, 216, 217, 217, 217, | |
1428 | 217, 218, 218, 218, 219, 219, 219, 219, 220, 220, | |
1429 | 220, 220, 221, 221, 221, 222, 222, 222, 222, 223, | |
1430 | 223, 223, 223, 224, 224, 224, 224, | |
1431 | }; | |
1432 | ||
1433 | return x < ARRAY_SIZE(log10) ? log10[x] : 225; | |
1434 | } | |
1435 | ||
1436 | enum { | |
1437 | MAX_CCK_EVM_DB = 45, | |
1438 | }; | |
1439 | ||
1440 | static int cck_evm_db(u8 status_quality) | |
1441 | { | |
1442 | return (20 * log10times100(status_quality)) / 100; | |
1443 | } | |
1444 | ||
1445 | static int cck_snr_db(u8 status_quality) | |
1446 | { | |
1447 | int r = MAX_CCK_EVM_DB - cck_evm_db(status_quality); | |
1448 | ZD_ASSERT(r >= 0); | |
1449 | return r; | |
1450 | } | |
1451 | ||
db888aed | 1452 | static int cck_qual_percent(u8 status_quality) |
e85d0918 | 1453 | { |
db888aed UK |
1454 | int r; |
1455 | ||
1456 | r = cck_snr_db(status_quality); | |
1457 | r = (100*r)/17; | |
1458 | return r <= 100 ? r : 100; | |
e85d0918 DD |
1459 | } |
1460 | ||
64f222cc UK |
1461 | static inline u8 zd_rate_from_ofdm_plcp_header(const void *rx_frame) |
1462 | { | |
1463 | return ZD_OFDM | zd_ofdm_plcp_header_rate(rx_frame); | |
1464 | } | |
1465 | ||
e85d0918 DD |
1466 | u8 zd_rx_qual_percent(const void *rx_frame, unsigned int size, |
1467 | const struct rx_status *status) | |
1468 | { | |
db888aed UK |
1469 | return (status->frame_status&ZD_RX_OFDM) ? |
1470 | ofdm_qual_percent(status->signal_quality_ofdm, | |
64f222cc | 1471 | zd_rate_from_ofdm_plcp_header(rx_frame), |
db888aed UK |
1472 | size) : |
1473 | cck_qual_percent(status->signal_quality_cck); | |
e85d0918 DD |
1474 | } |
1475 | ||
1476 | u8 zd_rx_strength_percent(u8 rssi) | |
1477 | { | |
db888aed | 1478 | int r = (rssi*100) / 41; |
e85d0918 DD |
1479 | if (r > 100) |
1480 | r = 100; | |
1481 | return (u8) r; | |
1482 | } | |
1483 | ||
1484 | u16 zd_rx_rate(const void *rx_frame, const struct rx_status *status) | |
1485 | { | |
1486 | static const u16 ofdm_rates[] = { | |
64f222cc UK |
1487 | [ZD_OFDM_PLCP_RATE_6M] = 60, |
1488 | [ZD_OFDM_PLCP_RATE_9M] = 90, | |
1489 | [ZD_OFDM_PLCP_RATE_12M] = 120, | |
1490 | [ZD_OFDM_PLCP_RATE_18M] = 180, | |
1491 | [ZD_OFDM_PLCP_RATE_24M] = 240, | |
1492 | [ZD_OFDM_PLCP_RATE_36M] = 360, | |
1493 | [ZD_OFDM_PLCP_RATE_48M] = 480, | |
1494 | [ZD_OFDM_PLCP_RATE_54M] = 540, | |
e85d0918 DD |
1495 | }; |
1496 | u16 rate; | |
1497 | if (status->frame_status & ZD_RX_OFDM) { | |
64f222cc | 1498 | /* Deals with PLCP OFDM rate (not zd_rates) */ |
e85d0918 DD |
1499 | u8 ofdm_rate = zd_ofdm_plcp_header_rate(rx_frame); |
1500 | rate = ofdm_rates[ofdm_rate & 0xf]; | |
1501 | } else { | |
64f222cc UK |
1502 | switch (zd_cck_plcp_header_signal(rx_frame)) { |
1503 | case ZD_CCK_PLCP_SIGNAL_1M: | |
e85d0918 DD |
1504 | rate = 10; |
1505 | break; | |
64f222cc | 1506 | case ZD_CCK_PLCP_SIGNAL_2M: |
e85d0918 DD |
1507 | rate = 20; |
1508 | break; | |
64f222cc | 1509 | case ZD_CCK_PLCP_SIGNAL_5M5: |
e85d0918 DD |
1510 | rate = 55; |
1511 | break; | |
64f222cc | 1512 | case ZD_CCK_PLCP_SIGNAL_11M: |
e85d0918 DD |
1513 | rate = 110; |
1514 | break; | |
1515 | default: | |
1516 | rate = 0; | |
1517 | } | |
1518 | } | |
1519 | ||
1520 | return rate; | |
1521 | } | |
1522 | ||
1523 | int zd_chip_switch_radio_on(struct zd_chip *chip) | |
1524 | { | |
1525 | int r; | |
1526 | ||
1527 | mutex_lock(&chip->mutex); | |
1528 | r = zd_switch_radio_on(&chip->rf); | |
1529 | mutex_unlock(&chip->mutex); | |
1530 | return r; | |
1531 | } | |
1532 | ||
1533 | int zd_chip_switch_radio_off(struct zd_chip *chip) | |
1534 | { | |
1535 | int r; | |
1536 | ||
1537 | mutex_lock(&chip->mutex); | |
1538 | r = zd_switch_radio_off(&chip->rf); | |
1539 | mutex_unlock(&chip->mutex); | |
1540 | return r; | |
1541 | } | |
1542 | ||
1543 | int zd_chip_enable_int(struct zd_chip *chip) | |
1544 | { | |
1545 | int r; | |
1546 | ||
1547 | mutex_lock(&chip->mutex); | |
1548 | r = zd_usb_enable_int(&chip->usb); | |
1549 | mutex_unlock(&chip->mutex); | |
1550 | return r; | |
1551 | } | |
1552 | ||
1553 | void zd_chip_disable_int(struct zd_chip *chip) | |
1554 | { | |
1555 | mutex_lock(&chip->mutex); | |
1556 | zd_usb_disable_int(&chip->usb); | |
1557 | mutex_unlock(&chip->mutex); | |
1558 | } | |
1559 | ||
1560 | int zd_chip_enable_rx(struct zd_chip *chip) | |
1561 | { | |
1562 | int r; | |
1563 | ||
1564 | mutex_lock(&chip->mutex); | |
1565 | r = zd_usb_enable_rx(&chip->usb); | |
1566 | mutex_unlock(&chip->mutex); | |
1567 | return r; | |
1568 | } | |
1569 | ||
1570 | void zd_chip_disable_rx(struct zd_chip *chip) | |
1571 | { | |
1572 | mutex_lock(&chip->mutex); | |
1573 | zd_usb_disable_rx(&chip->usb); | |
1574 | mutex_unlock(&chip->mutex); | |
1575 | } | |
1576 | ||
1577 | int zd_rfwritev_locked(struct zd_chip *chip, | |
1578 | const u32* values, unsigned int count, u8 bits) | |
1579 | { | |
1580 | int r; | |
1581 | unsigned int i; | |
1582 | ||
1583 | for (i = 0; i < count; i++) { | |
1584 | r = zd_rfwrite_locked(chip, values[i], bits); | |
1585 | if (r) | |
1586 | return r; | |
1587 | } | |
1588 | ||
1589 | return 0; | |
1590 | } | |
20fe2176 DD |
1591 | |
1592 | /* | |
1593 | * We can optionally program the RF directly through CR regs, if supported by | |
1594 | * the hardware. This is much faster than the older method. | |
1595 | */ | |
ec62bd91 | 1596 | int zd_rfwrite_cr_locked(struct zd_chip *chip, u32 value) |
20fe2176 DD |
1597 | { |
1598 | struct zd_ioreq16 ioreqs[] = { | |
1599 | { CR244, (value >> 16) & 0xff }, | |
1600 | { CR243, (value >> 8) & 0xff }, | |
1601 | { CR242, value & 0xff }, | |
1602 | }; | |
1603 | ZD_ASSERT(mutex_is_locked(&chip->mutex)); | |
1604 | return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); | |
1605 | } | |
1606 | ||
1607 | int zd_rfwritev_cr_locked(struct zd_chip *chip, | |
1608 | const u32 *values, unsigned int count) | |
1609 | { | |
1610 | int r; | |
1611 | unsigned int i; | |
1612 | ||
1613 | for (i = 0; i < count; i++) { | |
1614 | r = zd_rfwrite_cr_locked(chip, values[i]); | |
1615 | if (r) | |
1616 | return r; | |
1617 | } | |
1618 | ||
1619 | return 0; | |
1620 | } | |
9cdac965 UK |
1621 | |
1622 | int zd_chip_set_multicast_hash(struct zd_chip *chip, | |
1623 | struct zd_mc_hash *hash) | |
1624 | { | |
1625 | struct zd_ioreq32 ioreqs[] = { | |
1626 | { CR_GROUP_HASH_P1, hash->low }, | |
1627 | { CR_GROUP_HASH_P2, hash->high }, | |
1628 | }; | |
1629 | ||
9cdac965 UK |
1630 | return zd_iowrite32a(chip, ioreqs, ARRAY_SIZE(ioreqs)); |
1631 | } |