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ah_eeprom_v4k.c (217685) ah_eeprom_v4k.c (217809)
1/*
2 * Copyright (c) 2009 Rui Paulo <rpaulo@FreeBSD.org>
3 * Copyright (c) 2008 Sam Leffler, Errno Consulting
4 * Copyright (c) 2008 Atheros Communications, Inc.
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 *
1/*
2 * Copyright (c) 2009 Rui Paulo <rpaulo@FreeBSD.org>
3 * Copyright (c) 2008 Sam Leffler, Errno Consulting
4 * Copyright (c) 2008 Atheros Communications, Inc.
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 *
18 * $FreeBSD: head/sys/dev/ath/ath_hal/ah_eeprom_v4k.c 217685 2011-01-21 06:42:25Z adrian $
18 * $FreeBSD: head/sys/dev/ath/ath_hal/ah_eeprom_v4k.c 217809 2011-01-25 05:35:09Z adrian $
19 */
20#include "opt_ah.h"
21
22#include "ah.h"
23#include "ah_internal.h"
24#include "ah_eeprom_v14.h"
25#include "ah_eeprom_v4k.h"
26
27static HAL_STATUS
28v4kEepromGet(struct ath_hal *ah, int param, void *val)
29{
30#define CHAN_A_IDX 0
31#define CHAN_B_IDX 1
32#define IS_VERS(op, v) ((pBase->version & AR5416_EEP_VER_MINOR_MASK) op (v))
33 HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
34 const MODAL_EEP4K_HEADER *pModal = &ee->ee_base.modalHeader;
35 const BASE_EEP4K_HEADER *pBase = &ee->ee_base.baseEepHeader;
36 uint32_t sum;
37 uint8_t *macaddr;
38 int i;
39
40 switch (param) {
41 case AR_EEP_NFTHRESH_2:
42 *(int16_t *)val = pModal->noiseFloorThreshCh[0];
43 return HAL_OK;
44 case AR_EEP_MACADDR: /* Get MAC Address */
45 sum = 0;
46 macaddr = val;
47 for (i = 0; i < 6; i++) {
48 macaddr[i] = pBase->macAddr[i];
49 sum += pBase->macAddr[i];
50 }
51 if (sum == 0 || sum == 0xffff*3) {
52 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: bad mac address %s\n",
53 __func__, ath_hal_ether_sprintf(macaddr));
54 return HAL_EEBADMAC;
55 }
56 return HAL_OK;
57 case AR_EEP_REGDMN_0:
58 return pBase->regDmn[0];
59 case AR_EEP_REGDMN_1:
60 return pBase->regDmn[1];
61 case AR_EEP_OPCAP:
62 return pBase->deviceCap;
63 case AR_EEP_OPMODE:
64 return pBase->opCapFlags;
65 case AR_EEP_RFSILENT:
66 return pBase->rfSilent;
67 case AR_EEP_OB_2:
19 */
20#include "opt_ah.h"
21
22#include "ah.h"
23#include "ah_internal.h"
24#include "ah_eeprom_v14.h"
25#include "ah_eeprom_v4k.h"
26
27static HAL_STATUS
28v4kEepromGet(struct ath_hal *ah, int param, void *val)
29{
30#define CHAN_A_IDX 0
31#define CHAN_B_IDX 1
32#define IS_VERS(op, v) ((pBase->version & AR5416_EEP_VER_MINOR_MASK) op (v))
33 HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
34 const MODAL_EEP4K_HEADER *pModal = &ee->ee_base.modalHeader;
35 const BASE_EEP4K_HEADER *pBase = &ee->ee_base.baseEepHeader;
36 uint32_t sum;
37 uint8_t *macaddr;
38 int i;
39
40 switch (param) {
41 case AR_EEP_NFTHRESH_2:
42 *(int16_t *)val = pModal->noiseFloorThreshCh[0];
43 return HAL_OK;
44 case AR_EEP_MACADDR: /* Get MAC Address */
45 sum = 0;
46 macaddr = val;
47 for (i = 0; i < 6; i++) {
48 macaddr[i] = pBase->macAddr[i];
49 sum += pBase->macAddr[i];
50 }
51 if (sum == 0 || sum == 0xffff*3) {
52 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: bad mac address %s\n",
53 __func__, ath_hal_ether_sprintf(macaddr));
54 return HAL_EEBADMAC;
55 }
56 return HAL_OK;
57 case AR_EEP_REGDMN_0:
58 return pBase->regDmn[0];
59 case AR_EEP_REGDMN_1:
60 return pBase->regDmn[1];
61 case AR_EEP_OPCAP:
62 return pBase->deviceCap;
63 case AR_EEP_OPMODE:
64 return pBase->opCapFlags;
65 case AR_EEP_RFSILENT:
66 return pBase->rfSilent;
67 case AR_EEP_OB_2:
68 return pModal->ob;
68 return pModal->ob_0;
69 case AR_EEP_DB_2:
69 case AR_EEP_DB_2:
70 return pModal->db;
70 return pModal->db1_1;
71 case AR_EEP_TXMASK:
72 return pBase->txMask;
73 case AR_EEP_RXMASK:
74 return pBase->rxMask;
75 case AR_EEP_RXGAIN_TYPE:
76 return AR5416_EEP_RXGAIN_ORIG;
77 case AR_EEP_TXGAIN_TYPE:
78 return IS_VERS(>=, AR5416_EEP_MINOR_VER_19) ?
79 pBase->txGainType : AR5416_EEP_TXGAIN_ORIG;
80 case AR_EEP_OL_PWRCTRL:
81 HALASSERT(val == AH_NULL);
82 return HAL_EIO;
83 case AR_EEP_AMODE:
84 HALASSERT(val == AH_NULL);
85 return pBase->opCapFlags & AR5416_OPFLAGS_11A ?
86 HAL_OK : HAL_EIO;
87 case AR_EEP_BMODE:
88 case AR_EEP_GMODE:
89 HALASSERT(val == AH_NULL);
90 return pBase->opCapFlags & AR5416_OPFLAGS_11G ?
91 HAL_OK : HAL_EIO;
92 case AR_EEP_32KHZCRYSTAL:
93 case AR_EEP_COMPRESS:
94 case AR_EEP_FASTFRAME: /* XXX policy decision, h/w can do it */
95 case AR_EEP_WRITEPROTECT: /* NB: no write protect bit */
96 HALASSERT(val == AH_NULL);
97 /* fall thru... */
98 case AR_EEP_MAXQCU: /* NB: not in opCapFlags */
99 case AR_EEP_KCENTRIES: /* NB: not in opCapFlags */
100 return HAL_EIO;
101 case AR_EEP_AES:
102 case AR_EEP_BURST:
103 case AR_EEP_RFKILL:
104 case AR_EEP_TURBO2DISABLE:
105 HALASSERT(val == AH_NULL);
106 return HAL_OK;
107 case AR_EEP_ANTGAINMAX_2:
108 *(int8_t *) val = ee->ee_antennaGainMax;
109 return HAL_OK;
110 default:
111 HALASSERT(0);
112 return HAL_EINVAL;
113 }
114#undef IS_VERS
115#undef CHAN_A_IDX
116#undef CHAN_B_IDX
117}
118
119static HAL_BOOL
120v4kEepromSet(struct ath_hal *ah, int param, int v)
121{
122 HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
123
124 switch (param) {
125 case AR_EEP_ANTGAINMAX_2:
126 ee->ee_antennaGainMax = (int8_t) v;
127 return HAL_OK;
128 }
129 return HAL_EINVAL;
130}
131
132static HAL_BOOL
133v4kEepromDiag(struct ath_hal *ah, int request,
134 const void *args, uint32_t argsize, void **result, uint32_t *resultsize)
135{
136 HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
137
138 switch (request) {
139 case HAL_DIAG_EEPROM:
140 *result = ee;
141 *resultsize = sizeof(HAL_EEPROM_v4k);
142 return AH_TRUE;
143 }
144 return AH_FALSE;
145}
146
147/* Do structure specific swaps if Eeprom format is non native to host */
148static void
149eepromSwap(struct ar5416eeprom_4k *ee)
150{
151 uint32_t integer, i;
152 uint16_t word;
153 MODAL_EEP4K_HEADER *pModal;
154
155 /* convert Base Eep header */
156 word = __bswap16(ee->baseEepHeader.length);
157 ee->baseEepHeader.length = word;
158
159 word = __bswap16(ee->baseEepHeader.checksum);
160 ee->baseEepHeader.checksum = word;
161
162 word = __bswap16(ee->baseEepHeader.version);
163 ee->baseEepHeader.version = word;
164
165 word = __bswap16(ee->baseEepHeader.regDmn[0]);
166 ee->baseEepHeader.regDmn[0] = word;
167
168 word = __bswap16(ee->baseEepHeader.regDmn[1]);
169 ee->baseEepHeader.regDmn[1] = word;
170
171 word = __bswap16(ee->baseEepHeader.rfSilent);
172 ee->baseEepHeader.rfSilent = word;
173
174 word = __bswap16(ee->baseEepHeader.blueToothOptions);
175 ee->baseEepHeader.blueToothOptions = word;
176
177 word = __bswap16(ee->baseEepHeader.deviceCap);
178 ee->baseEepHeader.deviceCap = word;
179
180 /* convert Modal Eep header */
181 pModal = &ee->modalHeader;
182
183 /* XXX linux/ah_osdep.h only defines __bswap32 for BE */
184 integer = __bswap32(pModal->antCtrlCommon);
185 pModal->antCtrlCommon = integer;
186
187 for (i = 0; i < AR5416_4K_MAX_CHAINS; i++) {
188 integer = __bswap32(pModal->antCtrlChain[i]);
189 pModal->antCtrlChain[i] = integer;
190 }
191
192 for (i = 0; i < AR5416_EEPROM_MODAL_SPURS; i++) {
193 word = __bswap16(pModal->spurChans[i].spurChan);
194 pModal->spurChans[i].spurChan = word;
195 }
196}
197
198static uint16_t
199v4kEepromGetSpurChan(struct ath_hal *ah, int ix, HAL_BOOL is2GHz)
200{
201 HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
202
203 HALASSERT(0 <= ix && ix < AR5416_EEPROM_MODAL_SPURS);
204 HALASSERT(is2GHz);
205 return ee->ee_base.modalHeader.spurChans[ix].spurChan;
206}
207
208/**************************************************************************
209 * fbin2freq
210 *
211 * Get channel value from binary representation held in eeprom
212 * RETURNS: the frequency in MHz
213 */
214static uint16_t
215fbin2freq(uint8_t fbin, HAL_BOOL is2GHz)
216{
217 /*
218 * Reserved value 0xFF provides an empty definition both as
219 * an fbin and as a frequency - do not convert
220 */
221 if (fbin == AR5416_BCHAN_UNUSED)
222 return fbin;
223 return (uint16_t)((is2GHz) ? (2300 + fbin) : (4800 + 5 * fbin));
224}
225
226/*
227 * Copy EEPROM Conformance Testing Limits contents
228 * into the allocated space
229 */
230/* USE CTLS from chain zero */
231#define CTL_CHAIN 0
232
233static void
234v4kEepromReadCTLInfo(struct ath_hal *ah, HAL_EEPROM_v4k *ee)
235{
236 RD_EDGES_POWER *rep = ee->ee_rdEdgesPower;
237 int i, j;
238
239 HALASSERT(AR5416_4K_NUM_CTLS <= sizeof(ee->ee_rdEdgesPower)/NUM_EDGES);
240
241 for (i = 0; ee->ee_base.ctlIndex[i] != 0 && i < AR5416_4K_NUM_CTLS; i++) {
242 for (j = 0; j < NUM_EDGES; j ++) {
243 /* XXX Confirm this is the right thing to do when an invalid channel is stored */
244 if (ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].bChannel == AR5416_BCHAN_UNUSED) {
245 rep[j].rdEdge = 0;
246 rep[j].twice_rdEdgePower = 0;
247 rep[j].flag = 0;
248 } else {
249 rep[j].rdEdge = fbin2freq(
250 ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].bChannel,
251 (ee->ee_base.ctlIndex[i] & CTL_MODE_M) != CTL_11A);
252 rep[j].twice_rdEdgePower = MS(ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].tPowerFlag, CAL_CTL_EDGES_POWER);
253 rep[j].flag = MS(ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].tPowerFlag, CAL_CTL_EDGES_FLAG) != 0;
254 }
255 }
256 rep += NUM_EDGES;
257 }
258 ee->ee_numCtls = i;
259 HALDEBUG(ah, HAL_DEBUG_ATTACH | HAL_DEBUG_EEPROM,
260 "%s Numctls = %u\n",__func__,i);
261}
262
263/*
264 * Reclaim any EEPROM-related storage.
265 */
266static void
267v4kEepromDetach(struct ath_hal *ah)
268{
269 HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
270
271 ath_hal_free(ee);
272 AH_PRIVATE(ah)->ah_eeprom = AH_NULL;
273}
274
275#define owl_get_eep_ver(_ee) \
276 (((_ee)->ee_base.baseEepHeader.version >> 12) & 0xF)
277#define owl_get_eep_rev(_ee) \
278 (((_ee)->ee_base.baseEepHeader.version) & 0xFFF)
279
280HAL_STATUS
281ath_hal_v4kEepromAttach(struct ath_hal *ah)
282{
283#define NW(a) (sizeof(a) / sizeof(uint16_t))
284 HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
285 uint16_t *eep_data, magic;
286 HAL_BOOL need_swap;
287 u_int w, off, len;
288 uint32_t sum;
289
290 HALASSERT(ee == AH_NULL);
291
292 if (!ath_hal_eepromRead(ah, AR5416_EEPROM_MAGIC_OFFSET, &magic)) {
293 HALDEBUG(ah, HAL_DEBUG_ANY,
294 "%s Error reading Eeprom MAGIC\n", __func__);
295 return HAL_EEREAD;
296 }
297 HALDEBUG(ah, HAL_DEBUG_ATTACH, "%s Eeprom Magic = 0x%x\n",
298 __func__, magic);
299 if (magic != AR5416_EEPROM_MAGIC) {
300 HALDEBUG(ah, HAL_DEBUG_ANY, "Bad magic number\n");
301 return HAL_EEMAGIC;
302 }
303
304 ee = ath_hal_malloc(sizeof(HAL_EEPROM_v4k));
305 if (ee == AH_NULL) {
306 /* XXX message */
307 return HAL_ENOMEM;
308 }
309
310 eep_data = (uint16_t *)&ee->ee_base;
311 for (w = 0; w < NW(struct ar5416eeprom_4k); w++) {
312 off = owl_eep_start_loc + w; /* NB: AP71 starts at 0 */
313 if (!ath_hal_eepromRead(ah, off, &eep_data[w])) {
314 HALDEBUG(ah, HAL_DEBUG_ANY,
315 "%s eeprom read error at offset 0x%x\n",
316 __func__, off);
317 return HAL_EEREAD;
318 }
319 }
320 /* Convert to eeprom native eeprom endian format */
321 if (isBigEndian()) {
322 for (w = 0; w < NW(struct ar5416eeprom_4k); w++)
323 eep_data[w] = __bswap16(eep_data[w]);
324 }
325
326 /*
327 * At this point, we're in the native eeprom endian format
328 * Now, determine the eeprom endian by looking at byte 26??
329 */
330 need_swap = ((ee->ee_base.baseEepHeader.eepMisc & AR5416_EEPMISC_BIG_ENDIAN) != 0) ^ isBigEndian();
331 if (need_swap) {
332 HALDEBUG(ah, HAL_DEBUG_ATTACH | HAL_DEBUG_EEPROM,
333 "Byte swap EEPROM contents.\n");
334 len = __bswap16(ee->ee_base.baseEepHeader.length);
335 } else {
336 len = ee->ee_base.baseEepHeader.length;
337 }
338 len = AH_MIN(len, sizeof(struct ar5416eeprom_4k)) / sizeof(uint16_t);
339
340 /* Apply the checksum, done in native eeprom format */
341 /* XXX - Need to check to make sure checksum calculation is done
342 * in the correct endian format. Right now, it seems it would
343 * cast the raw data to host format and do the calculation, which may
344 * not be correct as the calculation may need to be done in the native
345 * eeprom format
346 */
347 sum = 0;
348 for (w = 0; w < len; w++) {
349 sum ^= eep_data[w];
350 }
351 /* Check CRC - Attach should fail on a bad checksum */
352 if (sum != 0xffff) {
353 HALDEBUG(ah, HAL_DEBUG_ANY,
354 "Bad EEPROM checksum 0x%x (Len=%u)\n", sum, len);
355 return HAL_EEBADSUM;
356 }
357
358 if (need_swap)
359 eepromSwap(&ee->ee_base); /* byte swap multi-byte data */
360
361 /* swap words 0+2 so version is at the front */
362 magic = eep_data[0];
363 eep_data[0] = eep_data[2];
364 eep_data[2] = magic;
365
366 HALDEBUG(ah, HAL_DEBUG_ATTACH | HAL_DEBUG_EEPROM,
367 "%s Eeprom Version %u.%u\n", __func__,
368 owl_get_eep_ver(ee), owl_get_eep_rev(ee));
369
370 /* NB: must be after all byte swapping */
371 if (owl_get_eep_ver(ee) != AR5416_EEP_VER) {
372 HALDEBUG(ah, HAL_DEBUG_ANY,
373 "Bad EEPROM version 0x%x\n", owl_get_eep_ver(ee));
374 return HAL_EEBADSUM;
375 }
376
377 v4kEepromReadCTLInfo(ah, ee); /* Get CTLs */
378
379 AH_PRIVATE(ah)->ah_eeprom = ee;
380 AH_PRIVATE(ah)->ah_eeversion = ee->ee_base.baseEepHeader.version;
381 AH_PRIVATE(ah)->ah_eepromDetach = v4kEepromDetach;
382 AH_PRIVATE(ah)->ah_eepromGet = v4kEepromGet;
383 AH_PRIVATE(ah)->ah_eepromSet = v4kEepromSet;
384 AH_PRIVATE(ah)->ah_getSpurChan = v4kEepromGetSpurChan;
385 AH_PRIVATE(ah)->ah_eepromDiag = v4kEepromDiag;
386 return HAL_OK;
387#undef NW
388}
71 case AR_EEP_TXMASK:
72 return pBase->txMask;
73 case AR_EEP_RXMASK:
74 return pBase->rxMask;
75 case AR_EEP_RXGAIN_TYPE:
76 return AR5416_EEP_RXGAIN_ORIG;
77 case AR_EEP_TXGAIN_TYPE:
78 return IS_VERS(>=, AR5416_EEP_MINOR_VER_19) ?
79 pBase->txGainType : AR5416_EEP_TXGAIN_ORIG;
80 case AR_EEP_OL_PWRCTRL:
81 HALASSERT(val == AH_NULL);
82 return HAL_EIO;
83 case AR_EEP_AMODE:
84 HALASSERT(val == AH_NULL);
85 return pBase->opCapFlags & AR5416_OPFLAGS_11A ?
86 HAL_OK : HAL_EIO;
87 case AR_EEP_BMODE:
88 case AR_EEP_GMODE:
89 HALASSERT(val == AH_NULL);
90 return pBase->opCapFlags & AR5416_OPFLAGS_11G ?
91 HAL_OK : HAL_EIO;
92 case AR_EEP_32KHZCRYSTAL:
93 case AR_EEP_COMPRESS:
94 case AR_EEP_FASTFRAME: /* XXX policy decision, h/w can do it */
95 case AR_EEP_WRITEPROTECT: /* NB: no write protect bit */
96 HALASSERT(val == AH_NULL);
97 /* fall thru... */
98 case AR_EEP_MAXQCU: /* NB: not in opCapFlags */
99 case AR_EEP_KCENTRIES: /* NB: not in opCapFlags */
100 return HAL_EIO;
101 case AR_EEP_AES:
102 case AR_EEP_BURST:
103 case AR_EEP_RFKILL:
104 case AR_EEP_TURBO2DISABLE:
105 HALASSERT(val == AH_NULL);
106 return HAL_OK;
107 case AR_EEP_ANTGAINMAX_2:
108 *(int8_t *) val = ee->ee_antennaGainMax;
109 return HAL_OK;
110 default:
111 HALASSERT(0);
112 return HAL_EINVAL;
113 }
114#undef IS_VERS
115#undef CHAN_A_IDX
116#undef CHAN_B_IDX
117}
118
119static HAL_BOOL
120v4kEepromSet(struct ath_hal *ah, int param, int v)
121{
122 HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
123
124 switch (param) {
125 case AR_EEP_ANTGAINMAX_2:
126 ee->ee_antennaGainMax = (int8_t) v;
127 return HAL_OK;
128 }
129 return HAL_EINVAL;
130}
131
132static HAL_BOOL
133v4kEepromDiag(struct ath_hal *ah, int request,
134 const void *args, uint32_t argsize, void **result, uint32_t *resultsize)
135{
136 HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
137
138 switch (request) {
139 case HAL_DIAG_EEPROM:
140 *result = ee;
141 *resultsize = sizeof(HAL_EEPROM_v4k);
142 return AH_TRUE;
143 }
144 return AH_FALSE;
145}
146
147/* Do structure specific swaps if Eeprom format is non native to host */
148static void
149eepromSwap(struct ar5416eeprom_4k *ee)
150{
151 uint32_t integer, i;
152 uint16_t word;
153 MODAL_EEP4K_HEADER *pModal;
154
155 /* convert Base Eep header */
156 word = __bswap16(ee->baseEepHeader.length);
157 ee->baseEepHeader.length = word;
158
159 word = __bswap16(ee->baseEepHeader.checksum);
160 ee->baseEepHeader.checksum = word;
161
162 word = __bswap16(ee->baseEepHeader.version);
163 ee->baseEepHeader.version = word;
164
165 word = __bswap16(ee->baseEepHeader.regDmn[0]);
166 ee->baseEepHeader.regDmn[0] = word;
167
168 word = __bswap16(ee->baseEepHeader.regDmn[1]);
169 ee->baseEepHeader.regDmn[1] = word;
170
171 word = __bswap16(ee->baseEepHeader.rfSilent);
172 ee->baseEepHeader.rfSilent = word;
173
174 word = __bswap16(ee->baseEepHeader.blueToothOptions);
175 ee->baseEepHeader.blueToothOptions = word;
176
177 word = __bswap16(ee->baseEepHeader.deviceCap);
178 ee->baseEepHeader.deviceCap = word;
179
180 /* convert Modal Eep header */
181 pModal = &ee->modalHeader;
182
183 /* XXX linux/ah_osdep.h only defines __bswap32 for BE */
184 integer = __bswap32(pModal->antCtrlCommon);
185 pModal->antCtrlCommon = integer;
186
187 for (i = 0; i < AR5416_4K_MAX_CHAINS; i++) {
188 integer = __bswap32(pModal->antCtrlChain[i]);
189 pModal->antCtrlChain[i] = integer;
190 }
191
192 for (i = 0; i < AR5416_EEPROM_MODAL_SPURS; i++) {
193 word = __bswap16(pModal->spurChans[i].spurChan);
194 pModal->spurChans[i].spurChan = word;
195 }
196}
197
198static uint16_t
199v4kEepromGetSpurChan(struct ath_hal *ah, int ix, HAL_BOOL is2GHz)
200{
201 HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
202
203 HALASSERT(0 <= ix && ix < AR5416_EEPROM_MODAL_SPURS);
204 HALASSERT(is2GHz);
205 return ee->ee_base.modalHeader.spurChans[ix].spurChan;
206}
207
208/**************************************************************************
209 * fbin2freq
210 *
211 * Get channel value from binary representation held in eeprom
212 * RETURNS: the frequency in MHz
213 */
214static uint16_t
215fbin2freq(uint8_t fbin, HAL_BOOL is2GHz)
216{
217 /*
218 * Reserved value 0xFF provides an empty definition both as
219 * an fbin and as a frequency - do not convert
220 */
221 if (fbin == AR5416_BCHAN_UNUSED)
222 return fbin;
223 return (uint16_t)((is2GHz) ? (2300 + fbin) : (4800 + 5 * fbin));
224}
225
226/*
227 * Copy EEPROM Conformance Testing Limits contents
228 * into the allocated space
229 */
230/* USE CTLS from chain zero */
231#define CTL_CHAIN 0
232
233static void
234v4kEepromReadCTLInfo(struct ath_hal *ah, HAL_EEPROM_v4k *ee)
235{
236 RD_EDGES_POWER *rep = ee->ee_rdEdgesPower;
237 int i, j;
238
239 HALASSERT(AR5416_4K_NUM_CTLS <= sizeof(ee->ee_rdEdgesPower)/NUM_EDGES);
240
241 for (i = 0; ee->ee_base.ctlIndex[i] != 0 && i < AR5416_4K_NUM_CTLS; i++) {
242 for (j = 0; j < NUM_EDGES; j ++) {
243 /* XXX Confirm this is the right thing to do when an invalid channel is stored */
244 if (ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].bChannel == AR5416_BCHAN_UNUSED) {
245 rep[j].rdEdge = 0;
246 rep[j].twice_rdEdgePower = 0;
247 rep[j].flag = 0;
248 } else {
249 rep[j].rdEdge = fbin2freq(
250 ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].bChannel,
251 (ee->ee_base.ctlIndex[i] & CTL_MODE_M) != CTL_11A);
252 rep[j].twice_rdEdgePower = MS(ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].tPowerFlag, CAL_CTL_EDGES_POWER);
253 rep[j].flag = MS(ee->ee_base.ctlData[i].ctlEdges[CTL_CHAIN][j].tPowerFlag, CAL_CTL_EDGES_FLAG) != 0;
254 }
255 }
256 rep += NUM_EDGES;
257 }
258 ee->ee_numCtls = i;
259 HALDEBUG(ah, HAL_DEBUG_ATTACH | HAL_DEBUG_EEPROM,
260 "%s Numctls = %u\n",__func__,i);
261}
262
263/*
264 * Reclaim any EEPROM-related storage.
265 */
266static void
267v4kEepromDetach(struct ath_hal *ah)
268{
269 HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
270
271 ath_hal_free(ee);
272 AH_PRIVATE(ah)->ah_eeprom = AH_NULL;
273}
274
275#define owl_get_eep_ver(_ee) \
276 (((_ee)->ee_base.baseEepHeader.version >> 12) & 0xF)
277#define owl_get_eep_rev(_ee) \
278 (((_ee)->ee_base.baseEepHeader.version) & 0xFFF)
279
280HAL_STATUS
281ath_hal_v4kEepromAttach(struct ath_hal *ah)
282{
283#define NW(a) (sizeof(a) / sizeof(uint16_t))
284 HAL_EEPROM_v4k *ee = AH_PRIVATE(ah)->ah_eeprom;
285 uint16_t *eep_data, magic;
286 HAL_BOOL need_swap;
287 u_int w, off, len;
288 uint32_t sum;
289
290 HALASSERT(ee == AH_NULL);
291
292 if (!ath_hal_eepromRead(ah, AR5416_EEPROM_MAGIC_OFFSET, &magic)) {
293 HALDEBUG(ah, HAL_DEBUG_ANY,
294 "%s Error reading Eeprom MAGIC\n", __func__);
295 return HAL_EEREAD;
296 }
297 HALDEBUG(ah, HAL_DEBUG_ATTACH, "%s Eeprom Magic = 0x%x\n",
298 __func__, magic);
299 if (magic != AR5416_EEPROM_MAGIC) {
300 HALDEBUG(ah, HAL_DEBUG_ANY, "Bad magic number\n");
301 return HAL_EEMAGIC;
302 }
303
304 ee = ath_hal_malloc(sizeof(HAL_EEPROM_v4k));
305 if (ee == AH_NULL) {
306 /* XXX message */
307 return HAL_ENOMEM;
308 }
309
310 eep_data = (uint16_t *)&ee->ee_base;
311 for (w = 0; w < NW(struct ar5416eeprom_4k); w++) {
312 off = owl_eep_start_loc + w; /* NB: AP71 starts at 0 */
313 if (!ath_hal_eepromRead(ah, off, &eep_data[w])) {
314 HALDEBUG(ah, HAL_DEBUG_ANY,
315 "%s eeprom read error at offset 0x%x\n",
316 __func__, off);
317 return HAL_EEREAD;
318 }
319 }
320 /* Convert to eeprom native eeprom endian format */
321 if (isBigEndian()) {
322 for (w = 0; w < NW(struct ar5416eeprom_4k); w++)
323 eep_data[w] = __bswap16(eep_data[w]);
324 }
325
326 /*
327 * At this point, we're in the native eeprom endian format
328 * Now, determine the eeprom endian by looking at byte 26??
329 */
330 need_swap = ((ee->ee_base.baseEepHeader.eepMisc & AR5416_EEPMISC_BIG_ENDIAN) != 0) ^ isBigEndian();
331 if (need_swap) {
332 HALDEBUG(ah, HAL_DEBUG_ATTACH | HAL_DEBUG_EEPROM,
333 "Byte swap EEPROM contents.\n");
334 len = __bswap16(ee->ee_base.baseEepHeader.length);
335 } else {
336 len = ee->ee_base.baseEepHeader.length;
337 }
338 len = AH_MIN(len, sizeof(struct ar5416eeprom_4k)) / sizeof(uint16_t);
339
340 /* Apply the checksum, done in native eeprom format */
341 /* XXX - Need to check to make sure checksum calculation is done
342 * in the correct endian format. Right now, it seems it would
343 * cast the raw data to host format and do the calculation, which may
344 * not be correct as the calculation may need to be done in the native
345 * eeprom format
346 */
347 sum = 0;
348 for (w = 0; w < len; w++) {
349 sum ^= eep_data[w];
350 }
351 /* Check CRC - Attach should fail on a bad checksum */
352 if (sum != 0xffff) {
353 HALDEBUG(ah, HAL_DEBUG_ANY,
354 "Bad EEPROM checksum 0x%x (Len=%u)\n", sum, len);
355 return HAL_EEBADSUM;
356 }
357
358 if (need_swap)
359 eepromSwap(&ee->ee_base); /* byte swap multi-byte data */
360
361 /* swap words 0+2 so version is at the front */
362 magic = eep_data[0];
363 eep_data[0] = eep_data[2];
364 eep_data[2] = magic;
365
366 HALDEBUG(ah, HAL_DEBUG_ATTACH | HAL_DEBUG_EEPROM,
367 "%s Eeprom Version %u.%u\n", __func__,
368 owl_get_eep_ver(ee), owl_get_eep_rev(ee));
369
370 /* NB: must be after all byte swapping */
371 if (owl_get_eep_ver(ee) != AR5416_EEP_VER) {
372 HALDEBUG(ah, HAL_DEBUG_ANY,
373 "Bad EEPROM version 0x%x\n", owl_get_eep_ver(ee));
374 return HAL_EEBADSUM;
375 }
376
377 v4kEepromReadCTLInfo(ah, ee); /* Get CTLs */
378
379 AH_PRIVATE(ah)->ah_eeprom = ee;
380 AH_PRIVATE(ah)->ah_eeversion = ee->ee_base.baseEepHeader.version;
381 AH_PRIVATE(ah)->ah_eepromDetach = v4kEepromDetach;
382 AH_PRIVATE(ah)->ah_eepromGet = v4kEepromGet;
383 AH_PRIVATE(ah)->ah_eepromSet = v4kEepromSet;
384 AH_PRIVATE(ah)->ah_getSpurChan = v4kEepromGetSpurChan;
385 AH_PRIVATE(ah)->ah_eepromDiag = v4kEepromDiag;
386 return HAL_OK;
387#undef NW
388}