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1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2008 - 2012 Intel Corporation. All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called LICENSE.GPL.
26 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *****************************************************************************/
62
63
64#include <linux/kernel.h>
65#include <linux/module.h>
66#include <linux/slab.h>
67#include <linux/init.h>
68
69#include <net/mac80211.h>
70
71#include "iwl-dev.h"
72#include "iwl-debug.h"
73#include "iwl-agn.h"
74#include "iwl-eeprom.h"
75#include "iwl-io.h"
76#include "iwl-prph.h"
77
78/************************** EEPROM BANDS ****************************
79 *
80 * The iwl_eeprom_band definitions below provide the mapping from the
81 * EEPROM contents to the specific channel number supported for each
82 * band.
83 *
84 * For example, iwl_priv->eeprom.band_3_channels[4] from the band_3
85 * definition below maps to physical channel 42 in the 5.2GHz spectrum.
86 * The specific geography and calibration information for that channel
87 * is contained in the eeprom map itself.
88 *
89 * During init, we copy the eeprom information and channel map
90 * information into priv->channel_info_24/52 and priv->channel_map_24/52
91 *
92 * channel_map_24/52 provides the index in the channel_info array for a
93 * given channel. We have to have two separate maps as there is channel
94 * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
95 * band_2
96 *
97 * A value of 0xff stored in the channel_map indicates that the channel
98 * is not supported by the hardware at all.
99 *
100 * A value of 0xfe in the channel_map indicates that the channel is not
101 * valid for Tx with the current hardware. This means that
102 * while the system can tune and receive on a given channel, it may not
103 * be able to associate or transmit any frames on that
104 * channel. There is no corresponding channel information for that
105 * entry.
106 *
107 *********************************************************************/
108
109/* 2.4 GHz */
110const u8 iwl_eeprom_band_1[14] = {
111 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
112};
113
114/* 5.2 GHz bands */
115static const u8 iwl_eeprom_band_2[] = { /* 4915-5080MHz */
116 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
117};
118
119static const u8 iwl_eeprom_band_3[] = { /* 5170-5320MHz */
120 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
121};
122
123static const u8 iwl_eeprom_band_4[] = { /* 5500-5700MHz */
124 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
125};
126
127static const u8 iwl_eeprom_band_5[] = { /* 5725-5825MHz */
128 145, 149, 153, 157, 161, 165
129};
130
131static const u8 iwl_eeprom_band_6[] = { /* 2.4 ht40 channel */
132 1, 2, 3, 4, 5, 6, 7
133};
134
135static const u8 iwl_eeprom_band_7[] = { /* 5.2 ht40 channel */
136 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
137};
138
139/******************************************************************************
140 *
141 * generic NVM functions
142 *
143******************************************************************************/
144
145/*
146 * The device's EEPROM semaphore prevents conflicts between driver and uCode
147 * when accessing the EEPROM; each access is a series of pulses to/from the
148 * EEPROM chip, not a single event, so even reads could conflict if they
149 * weren't arbitrated by the semaphore.
150 */
151
152#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
153#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
154
155static int iwl_eeprom_acquire_semaphore(struct iwl_trans *trans)
156{
157 u16 count;
158 int ret;
159
160 for (count = 0; count < EEPROM_SEM_RETRY_LIMIT; count++) {
161 /* Request semaphore */
162 iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG,
163 CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
164
165 /* See if we got it */
166 ret = iwl_poll_bit(trans, CSR_HW_IF_CONFIG_REG,
167 CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
168 CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
169 EEPROM_SEM_TIMEOUT);
170 if (ret >= 0) {
171 IWL_DEBUG_EEPROM(trans,
172 "Acquired semaphore after %d tries.\n",
173 count+1);
174 return ret;
175 }
176 }
177
178 return ret;
179}
180
181static void iwl_eeprom_release_semaphore(struct iwl_trans *trans)
182{
183 iwl_clear_bit(trans, CSR_HW_IF_CONFIG_REG,
184 CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
185
186}
187
188static int iwl_eeprom_verify_signature(struct iwl_priv *priv)
189{
190 u32 gp = iwl_read32(priv->trans, CSR_EEPROM_GP) &
191 CSR_EEPROM_GP_VALID_MSK;
192 int ret = 0;
193
194 IWL_DEBUG_EEPROM(priv, "EEPROM signature=0x%08x\n", gp);
195 switch (gp) {
196 case CSR_EEPROM_GP_BAD_SIG_EEP_GOOD_SIG_OTP:
197 if (priv->nvm_device_type != NVM_DEVICE_TYPE_OTP) {
198 IWL_ERR(priv, "EEPROM with bad signature: 0x%08x\n",
199 gp);
200 ret = -ENOENT;
201 }
202 break;
203 case CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K:
204 case CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K:
205 if (priv->nvm_device_type != NVM_DEVICE_TYPE_EEPROM) {
206 IWL_ERR(priv, "OTP with bad signature: 0x%08x\n", gp);
207 ret = -ENOENT;
208 }
209 break;
210 case CSR_EEPROM_GP_BAD_SIGNATURE_BOTH_EEP_AND_OTP:
211 default:
212 IWL_ERR(priv, "bad EEPROM/OTP signature, type=%s, "
213 "EEPROM_GP=0x%08x\n",
214 (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
215 ? "OTP" : "EEPROM", gp);
216 ret = -ENOENT;
217 break;
218 }
219 return ret;
220}
221
222u16 iwl_eeprom_query16(struct iwl_priv *priv, size_t offset)
223{
224 if (!priv->eeprom)
225 return 0;
226 return (u16)priv->eeprom[offset] | ((u16)priv->eeprom[offset + 1] << 8);
227}
228
229int iwl_eeprom_check_version(struct iwl_priv *priv)
230{
231 u16 eeprom_ver;
232 u16 calib_ver;
233
234 eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
235 calib_ver = iwl_eeprom_calib_version(priv);
236
237 if (eeprom_ver < priv->cfg->eeprom_ver ||
238 calib_ver < priv->cfg->eeprom_calib_ver)
239 goto err;
240
241 IWL_INFO(priv, "device EEPROM VER=0x%x, CALIB=0x%x\n",
242 eeprom_ver, calib_ver);
243
244 return 0;
245err:
246 IWL_ERR(priv, "Unsupported (too old) EEPROM VER=0x%x < 0x%x "
247 "CALIB=0x%x < 0x%x\n",
248 eeprom_ver, priv->cfg->eeprom_ver,
249 calib_ver, priv->cfg->eeprom_calib_ver);
250 return -EINVAL;
251
252}
253
254int iwl_eeprom_init_hw_params(struct iwl_priv *priv)
255{
256 u16 radio_cfg;
257
258 priv->hw_params.sku = iwl_eeprom_query16(priv, EEPROM_SKU_CAP);
259 if (priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE &&
260 !priv->cfg->ht_params) {
261 IWL_ERR(priv, "Invalid 11n configuration\n");
262 return -EINVAL;
263 }
264
265 if (!priv->hw_params.sku) {
266 IWL_ERR(priv, "Invalid device sku\n");
267 return -EINVAL;
268 }
269
270 IWL_INFO(priv, "Device SKU: 0x%X\n", priv->hw_params.sku);
271
272 radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
273
274 priv->hw_params.valid_tx_ant = EEPROM_RF_CFG_TX_ANT_MSK(radio_cfg);
275 priv->hw_params.valid_rx_ant = EEPROM_RF_CFG_RX_ANT_MSK(radio_cfg);
276
277 /* check overrides (some devices have wrong EEPROM) */
278 if (priv->cfg->valid_tx_ant)
279 priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
280 if (priv->cfg->valid_rx_ant)
281 priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
282
283 if (!priv->hw_params.valid_tx_ant || !priv->hw_params.valid_rx_ant) {
284 IWL_ERR(priv, "Invalid chain (0x%X, 0x%X)\n",
285 priv->hw_params.valid_tx_ant,
286 priv->hw_params.valid_rx_ant);
287 return -EINVAL;
288 }
289
290 IWL_INFO(priv, "Valid Tx ant: 0x%X, Valid Rx ant: 0x%X\n",
291 priv->hw_params.valid_tx_ant, priv->hw_params.valid_rx_ant);
292
293 return 0;
294}
295
296u16 iwl_eeprom_calib_version(struct iwl_priv *priv)
297{
298 struct iwl_eeprom_calib_hdr *hdr;
299
300 hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(priv,
301 EEPROM_CALIB_ALL);
302 return hdr->version;
303}
304
305static u32 eeprom_indirect_address(struct iwl_priv *priv, u32 address)
306{
307 u16 offset = 0;
308
309 if ((address & INDIRECT_ADDRESS) == 0)
310 return address;
311
312 switch (address & INDIRECT_TYPE_MSK) {
313 case INDIRECT_HOST:
314 offset = iwl_eeprom_query16(priv, EEPROM_LINK_HOST);
315 break;
316 case INDIRECT_GENERAL:
317 offset = iwl_eeprom_query16(priv, EEPROM_LINK_GENERAL);
318 break;
319 case INDIRECT_REGULATORY:
320 offset = iwl_eeprom_query16(priv, EEPROM_LINK_REGULATORY);
321 break;
322 case INDIRECT_TXP_LIMIT:
323 offset = iwl_eeprom_query16(priv, EEPROM_LINK_TXP_LIMIT);
324 break;
325 case INDIRECT_TXP_LIMIT_SIZE:
326 offset = iwl_eeprom_query16(priv, EEPROM_LINK_TXP_LIMIT_SIZE);
327 break;
328 case INDIRECT_CALIBRATION:
329 offset = iwl_eeprom_query16(priv, EEPROM_LINK_CALIBRATION);
330 break;
331 case INDIRECT_PROCESS_ADJST:
332 offset = iwl_eeprom_query16(priv, EEPROM_LINK_PROCESS_ADJST);
333 break;
334 case INDIRECT_OTHERS:
335 offset = iwl_eeprom_query16(priv, EEPROM_LINK_OTHERS);
336 break;
337 default:
338 IWL_ERR(priv, "illegal indirect type: 0x%X\n",
339 address & INDIRECT_TYPE_MSK);
340 break;
341 }
342
343 /* translate the offset from words to byte */
344 return (address & ADDRESS_MSK) + (offset << 1);
345}
346
347const u8 *iwl_eeprom_query_addr(struct iwl_priv *priv, size_t offset)
348{
349 u32 address = eeprom_indirect_address(priv, offset);
350 BUG_ON(address >= priv->cfg->base_params->eeprom_size);
351 return &priv->eeprom[address];
352}
353
354void iwl_eeprom_get_mac(struct iwl_priv *priv, u8 *mac)
355{
356 const u8 *addr = iwl_eeprom_query_addr(priv,
357 EEPROM_MAC_ADDRESS);
358 memcpy(mac, addr, ETH_ALEN);
359}
360
361/******************************************************************************
362 *
363 * OTP related functions
364 *
365******************************************************************************/
366
367static void iwl_set_otp_access(struct iwl_trans *trans,
368 enum iwl_access_mode mode)
369{
370 iwl_read32(trans, CSR_OTP_GP_REG);
371
372 if (mode == IWL_OTP_ACCESS_ABSOLUTE)
373 iwl_clear_bit(trans, CSR_OTP_GP_REG,
374 CSR_OTP_GP_REG_OTP_ACCESS_MODE);
375 else
376 iwl_set_bit(trans, CSR_OTP_GP_REG,
377 CSR_OTP_GP_REG_OTP_ACCESS_MODE);
378}
379
380static int iwl_get_nvm_type(struct iwl_trans *trans, u32 hw_rev)
381{
382 u32 otpgp;
383 int nvm_type;
384
385 /* OTP only valid for CP/PP and after */
386 switch (hw_rev & CSR_HW_REV_TYPE_MSK) {
387 case CSR_HW_REV_TYPE_NONE:
388 IWL_ERR(trans, "Unknown hardware type\n");
389 return -ENOENT;
390 case CSR_HW_REV_TYPE_5300:
391 case CSR_HW_REV_TYPE_5350:
392 case CSR_HW_REV_TYPE_5100:
393 case CSR_HW_REV_TYPE_5150:
394 nvm_type = NVM_DEVICE_TYPE_EEPROM;
395 break;
396 default:
397 otpgp = iwl_read32(trans, CSR_OTP_GP_REG);
398 if (otpgp & CSR_OTP_GP_REG_DEVICE_SELECT)
399 nvm_type = NVM_DEVICE_TYPE_OTP;
400 else
401 nvm_type = NVM_DEVICE_TYPE_EEPROM;
402 break;
403 }
404 return nvm_type;
405}
406
407static int iwl_init_otp_access(struct iwl_trans *trans)
408{
409 int ret;
410
411 /* Enable 40MHz radio clock */
412 iwl_write32(trans, CSR_GP_CNTRL,
413 iwl_read32(trans, CSR_GP_CNTRL) |
414 CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
415
416 /* wait for clock to be ready */
417 ret = iwl_poll_bit(trans, CSR_GP_CNTRL,
418 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
419 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
420 25000);
421 if (ret < 0)
422 IWL_ERR(trans, "Time out access OTP\n");
423 else {
424 iwl_set_bits_prph(trans, APMG_PS_CTRL_REG,
425 APMG_PS_CTRL_VAL_RESET_REQ);
426 udelay(5);
427 iwl_clear_bits_prph(trans, APMG_PS_CTRL_REG,
428 APMG_PS_CTRL_VAL_RESET_REQ);
429
430 /*
431 * CSR auto clock gate disable bit -
432 * this is only applicable for HW with OTP shadow RAM
433 */
434 if (trans->cfg->base_params->shadow_ram_support)
435 iwl_set_bit(trans, CSR_DBG_LINK_PWR_MGMT_REG,
436 CSR_RESET_LINK_PWR_MGMT_DISABLED);
437 }
438 return ret;
439}
440
441static int iwl_read_otp_word(struct iwl_trans *trans, u16 addr,
442 __le16 *eeprom_data)
443{
444 int ret = 0;
445 u32 r;
446 u32 otpgp;
447
448 iwl_write32(trans, CSR_EEPROM_REG,
449 CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
450 ret = iwl_poll_bit(trans, CSR_EEPROM_REG,
451 CSR_EEPROM_REG_READ_VALID_MSK,
452 CSR_EEPROM_REG_READ_VALID_MSK,
453 IWL_EEPROM_ACCESS_TIMEOUT);
454 if (ret < 0) {
455 IWL_ERR(trans, "Time out reading OTP[%d]\n", addr);
456 return ret;
457 }
458 r = iwl_read32(trans, CSR_EEPROM_REG);
459 /* check for ECC errors: */
460 otpgp = iwl_read32(trans, CSR_OTP_GP_REG);
461 if (otpgp & CSR_OTP_GP_REG_ECC_UNCORR_STATUS_MSK) {
462 /* stop in this case */
463 /* set the uncorrectable OTP ECC bit for acknowledgement */
464 iwl_set_bit(trans, CSR_OTP_GP_REG,
465 CSR_OTP_GP_REG_ECC_UNCORR_STATUS_MSK);
466 IWL_ERR(trans, "Uncorrectable OTP ECC error, abort OTP read\n");
467 return -EINVAL;
468 }
469 if (otpgp & CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK) {
470 /* continue in this case */
471 /* set the correctable OTP ECC bit for acknowledgement */
472 iwl_set_bit(trans, CSR_OTP_GP_REG,
473 CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK);
474 IWL_ERR(trans, "Correctable OTP ECC error, continue read\n");
475 }
476 *eeprom_data = cpu_to_le16(r >> 16);
477 return 0;
478}
479
480/*
481 * iwl_is_otp_empty: check for empty OTP
482 */
483static bool iwl_is_otp_empty(struct iwl_trans *trans)
484{
485 u16 next_link_addr = 0;
486 __le16 link_value;
487 bool is_empty = false;
488
489 /* locate the beginning of OTP link list */
490 if (!iwl_read_otp_word(trans, next_link_addr, &link_value)) {
491 if (!link_value) {
492 IWL_ERR(trans, "OTP is empty\n");
493 is_empty = true;
494 }
495 } else {
496 IWL_ERR(trans, "Unable to read first block of OTP list.\n");
497 is_empty = true;
498 }
499
500 return is_empty;
501}
502
503
504/*
505 * iwl_find_otp_image: find EEPROM image in OTP
506 * finding the OTP block that contains the EEPROM image.
507 * the last valid block on the link list (the block _before_ the last block)
508 * is the block we should read and used to configure the device.
509 * If all the available OTP blocks are full, the last block will be the block
510 * we should read and used to configure the device.
511 * only perform this operation if shadow RAM is disabled
512 */
513static int iwl_find_otp_image(struct iwl_trans *trans,
514 u16 *validblockaddr)
515{
516 u16 next_link_addr = 0, valid_addr;
517 __le16 link_value = 0;
518 int usedblocks = 0;
519
520 /* set addressing mode to absolute to traverse the link list */
521 iwl_set_otp_access(trans, IWL_OTP_ACCESS_ABSOLUTE);
522
523 /* checking for empty OTP or error */
524 if (iwl_is_otp_empty(trans))
525 return -EINVAL;
526
527 /*
528 * start traverse link list
529 * until reach the max number of OTP blocks
530 * different devices have different number of OTP blocks
531 */
532 do {
533 /* save current valid block address
534 * check for more block on the link list
535 */
536 valid_addr = next_link_addr;
537 next_link_addr = le16_to_cpu(link_value) * sizeof(u16);
538 IWL_DEBUG_EEPROM(trans, "OTP blocks %d addr 0x%x\n",
539 usedblocks, next_link_addr);
540 if (iwl_read_otp_word(trans, next_link_addr, &link_value))
541 return -EINVAL;
542 if (!link_value) {
543 /*
544 * reach the end of link list, return success and
545 * set address point to the starting address
546 * of the image
547 */
548 *validblockaddr = valid_addr;
549 /* skip first 2 bytes (link list pointer) */
550 *validblockaddr += 2;
551 return 0;
552 }
553 /* more in the link list, continue */
554 usedblocks++;
555 } while (usedblocks <= trans->cfg->base_params->max_ll_items);
556
557 /* OTP has no valid blocks */
558 IWL_DEBUG_EEPROM(trans, "OTP has no valid blocks\n");
559 return -EINVAL;
560}
561
562/******************************************************************************
563 *
564 * Tx Power related functions
565 *
566******************************************************************************/
567/**
568 * iwl_get_max_txpower_avg - get the highest tx power from all chains.
569 * find the highest tx power from all chains for the channel
570 */
571static s8 iwl_get_max_txpower_avg(struct iwl_priv *priv,
572 struct iwl_eeprom_enhanced_txpwr *enhanced_txpower,
573 int element, s8 *max_txpower_in_half_dbm)
574{
575 s8 max_txpower_avg = 0; /* (dBm) */
576
577 /* Take the highest tx power from any valid chains */
578 if ((priv->hw_params.valid_tx_ant & ANT_A) &&
579 (enhanced_txpower[element].chain_a_max > max_txpower_avg))
580 max_txpower_avg = enhanced_txpower[element].chain_a_max;
581 if ((priv->hw_params.valid_tx_ant & ANT_B) &&
582 (enhanced_txpower[element].chain_b_max > max_txpower_avg))
583 max_txpower_avg = enhanced_txpower[element].chain_b_max;
584 if ((priv->hw_params.valid_tx_ant & ANT_C) &&
585 (enhanced_txpower[element].chain_c_max > max_txpower_avg))
586 max_txpower_avg = enhanced_txpower[element].chain_c_max;
587 if (((priv->hw_params.valid_tx_ant == ANT_AB) |
588 (priv->hw_params.valid_tx_ant == ANT_BC) |
589 (priv->hw_params.valid_tx_ant == ANT_AC)) &&
590 (enhanced_txpower[element].mimo2_max > max_txpower_avg))
591 max_txpower_avg = enhanced_txpower[element].mimo2_max;
592 if ((priv->hw_params.valid_tx_ant == ANT_ABC) &&
593 (enhanced_txpower[element].mimo3_max > max_txpower_avg))
594 max_txpower_avg = enhanced_txpower[element].mimo3_max;
595
596 /*
597 * max. tx power in EEPROM is in 1/2 dBm format
598 * convert from 1/2 dBm to dBm (round-up convert)
599 * but we also do not want to loss 1/2 dBm resolution which
600 * will impact performance
601 */
602 *max_txpower_in_half_dbm = max_txpower_avg;
603 return (max_txpower_avg & 0x01) + (max_txpower_avg >> 1);
604}
605
606static void
607iwl_eeprom_enh_txp_read_element(struct iwl_priv *priv,
608 struct iwl_eeprom_enhanced_txpwr *txp,
609 s8 max_txpower_avg)
610{
611 int ch_idx;
612 bool is_ht40 = txp->flags & IWL_EEPROM_ENH_TXP_FL_40MHZ;
613 enum ieee80211_band band;
614
615 band = txp->flags & IWL_EEPROM_ENH_TXP_FL_BAND_52G ?
616 IEEE80211_BAND_5GHZ : IEEE80211_BAND_2GHZ;
617
618 for (ch_idx = 0; ch_idx < priv->channel_count; ch_idx++) {
619 struct iwl_channel_info *ch_info = &priv->channel_info[ch_idx];
620
621 /* update matching channel or from common data only */
622 if (txp->channel != 0 && ch_info->channel != txp->channel)
623 continue;
624
625 /* update matching band only */
626 if (band != ch_info->band)
627 continue;
628
629 if (ch_info->max_power_avg < max_txpower_avg && !is_ht40) {
630 ch_info->max_power_avg = max_txpower_avg;
631 ch_info->curr_txpow = max_txpower_avg;
632 ch_info->scan_power = max_txpower_avg;
633 }
634
635 if (is_ht40 && ch_info->ht40_max_power_avg < max_txpower_avg)
636 ch_info->ht40_max_power_avg = max_txpower_avg;
637 }
638}
639
640#define EEPROM_TXP_OFFS (0x00 | INDIRECT_ADDRESS | INDIRECT_TXP_LIMIT)
641#define EEPROM_TXP_ENTRY_LEN sizeof(struct iwl_eeprom_enhanced_txpwr)
642#define EEPROM_TXP_SZ_OFFS (0x00 | INDIRECT_ADDRESS | INDIRECT_TXP_LIMIT_SIZE)
643
644#define TXP_CHECK_AND_PRINT(x) ((txp->flags & IWL_EEPROM_ENH_TXP_FL_##x) \
645 ? # x " " : "")
646
647static void iwl_eeprom_enhanced_txpower(struct iwl_priv *priv)
648{
649 struct iwl_eeprom_enhanced_txpwr *txp_array, *txp;
650 int idx, entries;
651 __le16 *txp_len;
652 s8 max_txp_avg, max_txp_avg_halfdbm;
653
654 BUILD_BUG_ON(sizeof(struct iwl_eeprom_enhanced_txpwr) != 8);
655
656 /* the length is in 16-bit words, but we want entries */
657 txp_len = (__le16 *) iwl_eeprom_query_addr(priv, EEPROM_TXP_SZ_OFFS);
658 entries = le16_to_cpup(txp_len) * 2 / EEPROM_TXP_ENTRY_LEN;
659
660 txp_array = (void *) iwl_eeprom_query_addr(priv, EEPROM_TXP_OFFS);
661
662 for (idx = 0; idx < entries; idx++) {
663 txp = &txp_array[idx];
664 /* skip invalid entries */
665 if (!(txp->flags & IWL_EEPROM_ENH_TXP_FL_VALID))
666 continue;
667
668 IWL_DEBUG_EEPROM(priv, "%s %d:\t %s%s%s%s%s%s%s%s (0x%02x)\n",
669 (txp->channel && (txp->flags &
670 IWL_EEPROM_ENH_TXP_FL_COMMON_TYPE)) ?
671 "Common " : (txp->channel) ?
672 "Channel" : "Common",
673 (txp->channel),
674 TXP_CHECK_AND_PRINT(VALID),
675 TXP_CHECK_AND_PRINT(BAND_52G),
676 TXP_CHECK_AND_PRINT(OFDM),
677 TXP_CHECK_AND_PRINT(40MHZ),
678 TXP_CHECK_AND_PRINT(HT_AP),
679 TXP_CHECK_AND_PRINT(RES1),
680 TXP_CHECK_AND_PRINT(RES2),
681 TXP_CHECK_AND_PRINT(COMMON_TYPE),
682 txp->flags);
683 IWL_DEBUG_EEPROM(priv, "\t\t chain_A: 0x%02x "
684 "chain_B: 0X%02x chain_C: 0X%02x\n",
685 txp->chain_a_max, txp->chain_b_max,
686 txp->chain_c_max);
687 IWL_DEBUG_EEPROM(priv, "\t\t MIMO2: 0x%02x "
688 "MIMO3: 0x%02x High 20_on_40: 0x%02x "
689 "Low 20_on_40: 0x%02x\n",
690 txp->mimo2_max, txp->mimo3_max,
691 ((txp->delta_20_in_40 & 0xf0) >> 4),
692 (txp->delta_20_in_40 & 0x0f));
693
694 max_txp_avg = iwl_get_max_txpower_avg(priv, txp_array, idx,
695 &max_txp_avg_halfdbm);
696
697 /*
698 * Update the user limit values values to the highest
699 * power supported by any channel
700 */
701 if (max_txp_avg > priv->tx_power_user_lmt)
702 priv->tx_power_user_lmt = max_txp_avg;
703 if (max_txp_avg_halfdbm > priv->tx_power_lmt_in_half_dbm)
704 priv->tx_power_lmt_in_half_dbm = max_txp_avg_halfdbm;
705
706 iwl_eeprom_enh_txp_read_element(priv, txp, max_txp_avg);
707 }
708}
709
710/**
711 * iwl_eeprom_init - read EEPROM contents
712 *
713 * Load the EEPROM contents from adapter into priv->eeprom
714 *
715 * NOTE: This routine uses the non-debug IO access functions.
716 */
717int iwl_eeprom_init(struct iwl_priv *priv, u32 hw_rev)
718{
719 __le16 *e;
720 u32 gp = iwl_read32(priv->trans, CSR_EEPROM_GP);
721 int sz;
722 int ret;
723 u16 addr;
724 u16 validblockaddr = 0;
725 u16 cache_addr = 0;
726
727 priv->nvm_device_type = iwl_get_nvm_type(priv->trans, hw_rev);
728 if (priv->nvm_device_type == -ENOENT)
729 return -ENOENT;
730 /* allocate eeprom */
731 sz = priv->cfg->base_params->eeprom_size;
732 IWL_DEBUG_EEPROM(priv, "NVM size = %d\n", sz);
733 priv->eeprom = kzalloc(sz, GFP_KERNEL);
734 if (!priv->eeprom) {
735 ret = -ENOMEM;
736 goto alloc_err;
737 }
738 e = (__le16 *)priv->eeprom;
739
740 ret = iwl_eeprom_verify_signature(priv);
741 if (ret < 0) {
742 IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp);
743 ret = -ENOENT;
744 goto err;
745 }
746
747 /* Make sure driver (instead of uCode) is allowed to read EEPROM */
748 ret = iwl_eeprom_acquire_semaphore(priv->trans);
749 if (ret < 0) {
750 IWL_ERR(priv, "Failed to acquire EEPROM semaphore.\n");
751 ret = -ENOENT;
752 goto err;
753 }
754
755 if (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP) {
756
757 ret = iwl_init_otp_access(priv->trans);
758 if (ret) {
759 IWL_ERR(priv, "Failed to initialize OTP access.\n");
760 ret = -ENOENT;
761 goto done;
762 }
763 iwl_write32(priv->trans, CSR_EEPROM_GP,
764 iwl_read32(priv->trans, CSR_EEPROM_GP) &
765 ~CSR_EEPROM_GP_IF_OWNER_MSK);
766
767 iwl_set_bit(priv->trans, CSR_OTP_GP_REG,
768 CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK |
769 CSR_OTP_GP_REG_ECC_UNCORR_STATUS_MSK);
770 /* traversing the linked list if no shadow ram supported */
771 if (!priv->cfg->base_params->shadow_ram_support) {
772 if (iwl_find_otp_image(priv->trans, &validblockaddr)) {
773 ret = -ENOENT;
774 goto done;
775 }
776 }
777 for (addr = validblockaddr; addr < validblockaddr + sz;
778 addr += sizeof(u16)) {
779 __le16 eeprom_data;
780
781 ret = iwl_read_otp_word(priv->trans, addr,
782 &eeprom_data);
783 if (ret)
784 goto done;
785 e[cache_addr / 2] = eeprom_data;
786 cache_addr += sizeof(u16);
787 }
788 } else {
789 /* eeprom is an array of 16bit values */
790 for (addr = 0; addr < sz; addr += sizeof(u16)) {
791 u32 r;
792
793 iwl_write32(priv->trans, CSR_EEPROM_REG,
794 CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
795
796 ret = iwl_poll_bit(priv->trans, CSR_EEPROM_REG,
797 CSR_EEPROM_REG_READ_VALID_MSK,
798 CSR_EEPROM_REG_READ_VALID_MSK,
799 IWL_EEPROM_ACCESS_TIMEOUT);
800 if (ret < 0) {
801 IWL_ERR(priv,
802 "Time out reading EEPROM[%d]\n", addr);
803 goto done;
804 }
805 r = iwl_read32(priv->trans, CSR_EEPROM_REG);
806 e[addr / 2] = cpu_to_le16(r >> 16);
807 }
808 }
809
810 IWL_DEBUG_EEPROM(priv, "NVM Type: %s, version: 0x%x\n",
811 (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
812 ? "OTP" : "EEPROM",
813 iwl_eeprom_query16(priv, EEPROM_VERSION));
814
815 ret = 0;
816done:
817 iwl_eeprom_release_semaphore(priv->trans);
818
819err:
820 if (ret)
821 iwl_eeprom_free(priv);
822alloc_err:
823 return ret;
824}
825
826void iwl_eeprom_free(struct iwl_priv *priv)
827{
828 kfree(priv->eeprom);
829 priv->eeprom = NULL;
830}
831
832static void iwl_init_band_reference(struct iwl_priv *priv,
833 int eep_band, int *eeprom_ch_count,
834 const struct iwl_eeprom_channel **eeprom_ch_info,
835 const u8 **eeprom_ch_index)
836{
837 u32 offset = priv->lib->
838 eeprom_ops.regulatory_bands[eep_band - 1];
839 switch (eep_band) {
840 case 1: /* 2.4GHz band */
841 *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_1);
842 *eeprom_ch_info = (struct iwl_eeprom_channel *)
843 iwl_eeprom_query_addr(priv, offset);
844 *eeprom_ch_index = iwl_eeprom_band_1;
845 break;
846 case 2: /* 4.9GHz band */
847 *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_2);
848 *eeprom_ch_info = (struct iwl_eeprom_channel *)
849 iwl_eeprom_query_addr(priv, offset);
850 *eeprom_ch_index = iwl_eeprom_band_2;
851 break;
852 case 3: /* 5.2GHz band */
853 *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_3);
854 *eeprom_ch_info = (struct iwl_eeprom_channel *)
855 iwl_eeprom_query_addr(priv, offset);
856 *eeprom_ch_index = iwl_eeprom_band_3;
857 break;
858 case 4: /* 5.5GHz band */
859 *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_4);
860 *eeprom_ch_info = (struct iwl_eeprom_channel *)
861 iwl_eeprom_query_addr(priv, offset);
862 *eeprom_ch_index = iwl_eeprom_band_4;
863 break;
864 case 5: /* 5.7GHz band */
865 *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_5);
866 *eeprom_ch_info = (struct iwl_eeprom_channel *)
867 iwl_eeprom_query_addr(priv, offset);
868 *eeprom_ch_index = iwl_eeprom_band_5;
869 break;
870 case 6: /* 2.4GHz ht40 channels */
871 *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_6);
872 *eeprom_ch_info = (struct iwl_eeprom_channel *)
873 iwl_eeprom_query_addr(priv, offset);
874 *eeprom_ch_index = iwl_eeprom_band_6;
875 break;
876 case 7: /* 5 GHz ht40 channels */
877 *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_7);
878 *eeprom_ch_info = (struct iwl_eeprom_channel *)
879 iwl_eeprom_query_addr(priv, offset);
880 *eeprom_ch_index = iwl_eeprom_band_7;
881 break;
882 default:
883 BUG();
884 return;
885 }
886}
887
888#define CHECK_AND_PRINT(x) ((eeprom_ch->flags & EEPROM_CHANNEL_##x) \
889 ? # x " " : "")
890/**
891 * iwl_mod_ht40_chan_info - Copy ht40 channel info into driver's priv.
892 *
893 * Does not set up a command, or touch hardware.
894 */
895static int iwl_mod_ht40_chan_info(struct iwl_priv *priv,
896 enum ieee80211_band band, u16 channel,
897 const struct iwl_eeprom_channel *eeprom_ch,
898 u8 clear_ht40_extension_channel)
899{
900 struct iwl_channel_info *ch_info;
901
902 ch_info = (struct iwl_channel_info *)
903 iwl_get_channel_info(priv, band, channel);
904
905 if (!is_channel_valid(ch_info))
906 return -1;
907
908 IWL_DEBUG_EEPROM(priv, "HT40 Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm):"
909 " Ad-Hoc %ssupported\n",
910 ch_info->channel,
911 is_channel_a_band(ch_info) ?
912 "5.2" : "2.4",
913 CHECK_AND_PRINT(IBSS),
914 CHECK_AND_PRINT(ACTIVE),
915 CHECK_AND_PRINT(RADAR),
916 CHECK_AND_PRINT(WIDE),
917 CHECK_AND_PRINT(DFS),
918 eeprom_ch->flags,
919 eeprom_ch->max_power_avg,
920 ((eeprom_ch->flags & EEPROM_CHANNEL_IBSS)
921 && !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ?
922 "" : "not ");
923
924 ch_info->ht40_eeprom = *eeprom_ch;
925 ch_info->ht40_max_power_avg = eeprom_ch->max_power_avg;
926 ch_info->ht40_flags = eeprom_ch->flags;
927 if (eeprom_ch->flags & EEPROM_CHANNEL_VALID)
928 ch_info->ht40_extension_channel &= ~clear_ht40_extension_channel;
929
930 return 0;
931}
932
933#define CHECK_AND_PRINT_I(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
934 ? # x " " : "")
935
936/**
937 * iwl_init_channel_map - Set up driver's info for all possible channels
938 */
939int iwl_init_channel_map(struct iwl_priv *priv)
940{
941 int eeprom_ch_count = 0;
942 const u8 *eeprom_ch_index = NULL;
943 const struct iwl_eeprom_channel *eeprom_ch_info = NULL;
944 int band, ch;
945 struct iwl_channel_info *ch_info;
946
947 if (priv->channel_count) {
948 IWL_DEBUG_EEPROM(priv, "Channel map already initialized.\n");
949 return 0;
950 }
951
952 IWL_DEBUG_EEPROM(priv, "Initializing regulatory info from EEPROM\n");
953
954 priv->channel_count =
955 ARRAY_SIZE(iwl_eeprom_band_1) +
956 ARRAY_SIZE(iwl_eeprom_band_2) +
957 ARRAY_SIZE(iwl_eeprom_band_3) +
958 ARRAY_SIZE(iwl_eeprom_band_4) +
959 ARRAY_SIZE(iwl_eeprom_band_5);
960
961 IWL_DEBUG_EEPROM(priv, "Parsing data for %d channels.\n",
962 priv->channel_count);
963
964 priv->channel_info = kcalloc(priv->channel_count,
965 sizeof(struct iwl_channel_info),
966 GFP_KERNEL);
967 if (!priv->channel_info) {
968 IWL_ERR(priv, "Could not allocate channel_info\n");
969 priv->channel_count = 0;
970 return -ENOMEM;
971 }
972
973 ch_info = priv->channel_info;
974
975 /* Loop through the 5 EEPROM bands adding them in order to the
976 * channel map we maintain (that contains additional information than
977 * what just in the EEPROM) */
978 for (band = 1; band <= 5; band++) {
979
980 iwl_init_band_reference(priv, band, &eeprom_ch_count,
981 &eeprom_ch_info, &eeprom_ch_index);
982
983 /* Loop through each band adding each of the channels */
984 for (ch = 0; ch < eeprom_ch_count; ch++) {
985 ch_info->channel = eeprom_ch_index[ch];
986 ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ :
987 IEEE80211_BAND_5GHZ;
988
989 /* permanently store EEPROM's channel regulatory flags
990 * and max power in channel info database. */
991 ch_info->eeprom = eeprom_ch_info[ch];
992
993 /* Copy the run-time flags so they are there even on
994 * invalid channels */
995 ch_info->flags = eeprom_ch_info[ch].flags;
996 /* First write that ht40 is not enabled, and then enable
997 * one by one */
998 ch_info->ht40_extension_channel =
999 IEEE80211_CHAN_NO_HT40;
1000
1001 if (!(is_channel_valid(ch_info))) {
1002 IWL_DEBUG_EEPROM(priv,
1003 "Ch. %d Flags %x [%sGHz] - "
1004 "No traffic\n",
1005 ch_info->channel,
1006 ch_info->flags,
1007 is_channel_a_band(ch_info) ?
1008 "5.2" : "2.4");
1009 ch_info++;
1010 continue;
1011 }
1012
1013 /* Initialize regulatory-based run-time data */
1014 ch_info->max_power_avg = ch_info->curr_txpow =
1015 eeprom_ch_info[ch].max_power_avg;
1016 ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
1017 ch_info->min_power = 0;
1018
1019 IWL_DEBUG_EEPROM(priv, "Ch. %d [%sGHz] "
1020 "%s%s%s%s%s%s(0x%02x %ddBm):"
1021 " Ad-Hoc %ssupported\n",
1022 ch_info->channel,
1023 is_channel_a_band(ch_info) ?
1024 "5.2" : "2.4",
1025 CHECK_AND_PRINT_I(VALID),
1026 CHECK_AND_PRINT_I(IBSS),
1027 CHECK_AND_PRINT_I(ACTIVE),
1028 CHECK_AND_PRINT_I(RADAR),
1029 CHECK_AND_PRINT_I(WIDE),
1030 CHECK_AND_PRINT_I(DFS),
1031 eeprom_ch_info[ch].flags,
1032 eeprom_ch_info[ch].max_power_avg,
1033 ((eeprom_ch_info[ch].
1034 flags & EEPROM_CHANNEL_IBSS)
1035 && !(eeprom_ch_info[ch].
1036 flags & EEPROM_CHANNEL_RADAR))
1037 ? "" : "not ");
1038
1039 ch_info++;
1040 }
1041 }
1042
1043 /* Check if we do have HT40 channels */
1044 if (priv->lib->eeprom_ops.regulatory_bands[5] ==
1045 EEPROM_REGULATORY_BAND_NO_HT40 &&
1046 priv->lib->eeprom_ops.regulatory_bands[6] ==
1047 EEPROM_REGULATORY_BAND_NO_HT40)
1048 return 0;
1049
1050 /* Two additional EEPROM bands for 2.4 and 5 GHz HT40 channels */
1051 for (band = 6; band <= 7; band++) {
1052 enum ieee80211_band ieeeband;
1053
1054 iwl_init_band_reference(priv, band, &eeprom_ch_count,
1055 &eeprom_ch_info, &eeprom_ch_index);
1056
1057 /* EEPROM band 6 is 2.4, band 7 is 5 GHz */
1058 ieeeband =
1059 (band == 6) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
1060
1061 /* Loop through each band adding each of the channels */
1062 for (ch = 0; ch < eeprom_ch_count; ch++) {
1063 /* Set up driver's info for lower half */
1064 iwl_mod_ht40_chan_info(priv, ieeeband,
1065 eeprom_ch_index[ch],
1066 &eeprom_ch_info[ch],
1067 IEEE80211_CHAN_NO_HT40PLUS);
1068
1069 /* Set up driver's info for upper half */
1070 iwl_mod_ht40_chan_info(priv, ieeeband,
1071 eeprom_ch_index[ch] + 4,
1072 &eeprom_ch_info[ch],
1073 IEEE80211_CHAN_NO_HT40MINUS);
1074 }
1075 }
1076
1077 /* for newer device (6000 series and up)
1078 * EEPROM contain enhanced tx power information
1079 * driver need to process addition information
1080 * to determine the max channel tx power limits
1081 */
1082 if (priv->lib->eeprom_ops.enhanced_txpower)
1083 iwl_eeprom_enhanced_txpower(priv);
1084
1085 return 0;
1086}
1087
1088/*
1089 * iwl_free_channel_map - undo allocations in iwl_init_channel_map
1090 */
1091void iwl_free_channel_map(struct iwl_priv *priv)
1092{
1093 kfree(priv->channel_info);
1094 priv->channel_count = 0;
1095}
1096
1097/**
1098 * iwl_get_channel_info - Find driver's private channel info
1099 *
1100 * Based on band and channel number.
1101 */
1102const struct iwl_channel_info *iwl_get_channel_info(const struct iwl_priv *priv,
1103 enum ieee80211_band band, u16 channel)
1104{
1105 int i;
1106
1107 switch (band) {
1108 case IEEE80211_BAND_5GHZ:
1109 for (i = 14; i < priv->channel_count; i++) {
1110 if (priv->channel_info[i].channel == channel)
1111 return &priv->channel_info[i];
1112 }
1113 break;
1114 case IEEE80211_BAND_2GHZ:
1115 if (channel >= 1 && channel <= 14)
1116 return &priv->channel_info[channel - 1];
1117 break;
1118 default:
1119 BUG();
1120 }
1121
1122 return NULL;
1123}
1124
1125void iwl_rf_config(struct iwl_priv *priv)
1126{
1127 u16 radio_cfg;
1128
1129 radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
1130
1131 /* write radio config values to register */
1132 if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) <= EEPROM_RF_CONFIG_TYPE_MAX) {
1133 iwl_set_bit(priv->trans, CSR_HW_IF_CONFIG_REG,
1134 EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
1135 EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
1136 EEPROM_RF_CFG_DASH_MSK(radio_cfg));
1137 IWL_INFO(priv, "Radio type=0x%x-0x%x-0x%x\n",
1138 EEPROM_RF_CFG_TYPE_MSK(radio_cfg),
1139 EEPROM_RF_CFG_STEP_MSK(radio_cfg),
1140 EEPROM_RF_CFG_DASH_MSK(radio_cfg));
1141 } else
1142 WARN_ON(1);
1143
1144 /* set CSR_HW_CONFIG_REG for uCode use */
1145 iwl_set_bit(priv->trans, CSR_HW_IF_CONFIG_REG,
1146 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
1147 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
1148}