Commit | Line | Data |
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c6e387a2 NK |
1 | /* |
2 | * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org> | |
8e218fb2 NK |
3 | * Copyright (c) 2006-2009 Nick Kossifidis <mickflemm@gmail.com> |
4 | * Copyright (c) 2008-2009 Felix Fietkau <nbd@openwrt.org> | |
c6e387a2 NK |
5 | * |
6 | * Permission to use, copy, modify, and 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 | */ | |
19 | ||
20 | /*************************************\ | |
21 | * EEPROM access functions and helpers * | |
22 | \*************************************/ | |
23 | ||
24 | #include "ath5k.h" | |
25 | #include "reg.h" | |
26 | #include "debug.h" | |
27 | #include "base.h" | |
28 | ||
29 | /* | |
30 | * Read from eeprom | |
31 | */ | |
32 | static int ath5k_hw_eeprom_read(struct ath5k_hw *ah, u32 offset, u16 *data) | |
33 | { | |
34 | u32 status, timeout; | |
35 | ||
36 | ATH5K_TRACE(ah->ah_sc); | |
37 | /* | |
38 | * Initialize EEPROM access | |
39 | */ | |
40 | if (ah->ah_version == AR5K_AR5210) { | |
41 | AR5K_REG_ENABLE_BITS(ah, AR5K_PCICFG, AR5K_PCICFG_EEAE); | |
42 | (void)ath5k_hw_reg_read(ah, AR5K_EEPROM_BASE + (4 * offset)); | |
43 | } else { | |
44 | ath5k_hw_reg_write(ah, offset, AR5K_EEPROM_BASE); | |
45 | AR5K_REG_ENABLE_BITS(ah, AR5K_EEPROM_CMD, | |
46 | AR5K_EEPROM_CMD_READ); | |
47 | } | |
48 | ||
49 | for (timeout = AR5K_TUNE_REGISTER_TIMEOUT; timeout > 0; timeout--) { | |
50 | status = ath5k_hw_reg_read(ah, AR5K_EEPROM_STATUS); | |
51 | if (status & AR5K_EEPROM_STAT_RDDONE) { | |
52 | if (status & AR5K_EEPROM_STAT_RDERR) | |
53 | return -EIO; | |
54 | *data = (u16)(ath5k_hw_reg_read(ah, AR5K_EEPROM_DATA) & | |
55 | 0xffff); | |
56 | return 0; | |
57 | } | |
58 | udelay(15); | |
59 | } | |
60 | ||
61 | return -ETIMEDOUT; | |
62 | } | |
63 | ||
64 | /* | |
65 | * Translate binary channel representation in EEPROM to frequency | |
66 | */ | |
1048643e FF |
67 | static u16 ath5k_eeprom_bin2freq(struct ath5k_eeprom_info *ee, u16 bin, |
68 | unsigned int mode) | |
c6e387a2 NK |
69 | { |
70 | u16 val; | |
71 | ||
72 | if (bin == AR5K_EEPROM_CHANNEL_DIS) | |
73 | return bin; | |
74 | ||
75 | if (mode == AR5K_EEPROM_MODE_11A) { | |
1048643e | 76 | if (ee->ee_version > AR5K_EEPROM_VERSION_3_2) |
c6e387a2 NK |
77 | val = (5 * bin) + 4800; |
78 | else | |
79 | val = bin > 62 ? (10 * 62) + (5 * (bin - 62)) + 5100 : | |
80 | (bin * 10) + 5100; | |
81 | } else { | |
1048643e | 82 | if (ee->ee_version > AR5K_EEPROM_VERSION_3_2) |
c6e387a2 NK |
83 | val = bin + 2300; |
84 | else | |
85 | val = bin + 2400; | |
86 | } | |
87 | ||
88 | return val; | |
89 | } | |
90 | ||
1048643e FF |
91 | /* |
92 | * Initialize eeprom & capabilities structs | |
93 | */ | |
94 | static int | |
95 | ath5k_eeprom_init_header(struct ath5k_hw *ah) | |
96 | { | |
97 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
98 | int ret; | |
99 | u16 val; | |
100 | ||
1048643e FF |
101 | /* |
102 | * Read values from EEPROM and store them in the capability structure | |
103 | */ | |
104 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MAGIC, ee_magic); | |
105 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_PROTECT, ee_protect); | |
106 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_REG_DOMAIN, ee_regdomain); | |
107 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_VERSION, ee_version); | |
108 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_HDR, ee_header); | |
109 | ||
110 | /* Return if we have an old EEPROM */ | |
111 | if (ah->ah_ee_version < AR5K_EEPROM_VERSION_3_0) | |
112 | return 0; | |
113 | ||
114 | #ifdef notyet | |
115 | /* | |
116 | * Validate the checksum of the EEPROM date. There are some | |
117 | * devices with invalid EEPROMs. | |
118 | */ | |
119 | for (cksum = 0, offset = 0; offset < AR5K_EEPROM_INFO_MAX; offset++) { | |
120 | AR5K_EEPROM_READ(AR5K_EEPROM_INFO(offset), val); | |
121 | cksum ^= val; | |
122 | } | |
123 | if (cksum != AR5K_EEPROM_INFO_CKSUM) { | |
124 | ATH5K_ERR(ah->ah_sc, "Invalid EEPROM checksum 0x%04x\n", cksum); | |
125 | return -EIO; | |
126 | } | |
127 | #endif | |
128 | ||
129 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_ANT_GAIN(ah->ah_ee_version), | |
130 | ee_ant_gain); | |
131 | ||
132 | if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0) { | |
133 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC0, ee_misc0); | |
134 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC1, ee_misc1); | |
0ea9c00c NK |
135 | |
136 | /* XXX: Don't know which versions include these two */ | |
137 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC2, ee_misc2); | |
138 | ||
139 | if (ee->ee_version >= AR5K_EEPROM_VERSION_4_3) | |
140 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC3, ee_misc3); | |
141 | ||
142 | if (ee->ee_version >= AR5K_EEPROM_VERSION_5_0) { | |
143 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC4, ee_misc4); | |
144 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC5, ee_misc5); | |
145 | AR5K_EEPROM_READ_HDR(AR5K_EEPROM_MISC6, ee_misc6); | |
146 | } | |
1048643e FF |
147 | } |
148 | ||
149 | if (ah->ah_ee_version < AR5K_EEPROM_VERSION_3_3) { | |
150 | AR5K_EEPROM_READ(AR5K_EEPROM_OBDB0_2GHZ, val); | |
151 | ee->ee_ob[AR5K_EEPROM_MODE_11B][0] = val & 0x7; | |
152 | ee->ee_db[AR5K_EEPROM_MODE_11B][0] = (val >> 3) & 0x7; | |
153 | ||
154 | AR5K_EEPROM_READ(AR5K_EEPROM_OBDB1_2GHZ, val); | |
155 | ee->ee_ob[AR5K_EEPROM_MODE_11G][0] = val & 0x7; | |
156 | ee->ee_db[AR5K_EEPROM_MODE_11G][0] = (val >> 3) & 0x7; | |
157 | } | |
158 | ||
1889ba0a NK |
159 | AR5K_EEPROM_READ(AR5K_EEPROM_IS_HB63, val); |
160 | ||
161 | if ((ah->ah_mac_version == (AR5K_SREV_AR2425 >> 4)) && val) | |
162 | ee->ee_is_hb63 = true; | |
163 | else | |
164 | ee->ee_is_hb63 = false; | |
165 | ||
166 | AR5K_EEPROM_READ(AR5K_EEPROM_RFKILL, val); | |
167 | ee->ee_rfkill_pin = (u8) AR5K_REG_MS(val, AR5K_EEPROM_RFKILL_GPIO_SEL); | |
168 | ee->ee_rfkill_pol = val & AR5K_EEPROM_RFKILL_POLARITY ? true : false; | |
169 | ||
c38e7a93 NK |
170 | /* Check if PCIE_OFFSET points to PCIE_SERDES_SECTION |
171 | * and enable serdes programming if needed. | |
172 | * | |
173 | * XXX: Serdes values seem to be fixed so | |
174 | * no need to read them here, we write them | |
175 | * during ath5k_hw_attach */ | |
176 | AR5K_EEPROM_READ(AR5K_EEPROM_PCIE_OFFSET, val); | |
177 | ee->ee_serdes = (val == AR5K_EEPROM_PCIE_SERDES_SECTION) ? | |
178 | true : false; | |
179 | ||
1048643e FF |
180 | return 0; |
181 | } | |
182 | ||
183 | ||
c6e387a2 NK |
184 | /* |
185 | * Read antenna infos from eeprom | |
186 | */ | |
187 | static int ath5k_eeprom_read_ants(struct ath5k_hw *ah, u32 *offset, | |
188 | unsigned int mode) | |
189 | { | |
190 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
191 | u32 o = *offset; | |
192 | u16 val; | |
193 | int ret, i = 0; | |
194 | ||
195 | AR5K_EEPROM_READ(o++, val); | |
196 | ee->ee_switch_settling[mode] = (val >> 8) & 0x7f; | |
1048643e | 197 | ee->ee_atn_tx_rx[mode] = (val >> 2) & 0x3f; |
c6e387a2 NK |
198 | ee->ee_ant_control[mode][i] = (val << 4) & 0x3f; |
199 | ||
200 | AR5K_EEPROM_READ(o++, val); | |
201 | ee->ee_ant_control[mode][i++] |= (val >> 12) & 0xf; | |
202 | ee->ee_ant_control[mode][i++] = (val >> 6) & 0x3f; | |
203 | ee->ee_ant_control[mode][i++] = val & 0x3f; | |
204 | ||
205 | AR5K_EEPROM_READ(o++, val); | |
206 | ee->ee_ant_control[mode][i++] = (val >> 10) & 0x3f; | |
207 | ee->ee_ant_control[mode][i++] = (val >> 4) & 0x3f; | |
208 | ee->ee_ant_control[mode][i] = (val << 2) & 0x3f; | |
209 | ||
210 | AR5K_EEPROM_READ(o++, val); | |
211 | ee->ee_ant_control[mode][i++] |= (val >> 14) & 0x3; | |
212 | ee->ee_ant_control[mode][i++] = (val >> 8) & 0x3f; | |
213 | ee->ee_ant_control[mode][i++] = (val >> 2) & 0x3f; | |
214 | ee->ee_ant_control[mode][i] = (val << 4) & 0x3f; | |
215 | ||
216 | AR5K_EEPROM_READ(o++, val); | |
217 | ee->ee_ant_control[mode][i++] |= (val >> 12) & 0xf; | |
218 | ee->ee_ant_control[mode][i++] = (val >> 6) & 0x3f; | |
219 | ee->ee_ant_control[mode][i++] = val & 0x3f; | |
220 | ||
2bed03eb NK |
221 | /* Get antenna switch tables */ |
222 | ah->ah_ant_ctl[mode][AR5K_ANT_CTL] = | |
e8f055f0 | 223 | (ee->ee_ant_control[mode][0] << 4); |
2bed03eb | 224 | ah->ah_ant_ctl[mode][AR5K_ANT_SWTABLE_A] = |
c6e387a2 NK |
225 | ee->ee_ant_control[mode][1] | |
226 | (ee->ee_ant_control[mode][2] << 6) | | |
227 | (ee->ee_ant_control[mode][3] << 12) | | |
228 | (ee->ee_ant_control[mode][4] << 18) | | |
229 | (ee->ee_ant_control[mode][5] << 24); | |
2bed03eb | 230 | ah->ah_ant_ctl[mode][AR5K_ANT_SWTABLE_B] = |
c6e387a2 NK |
231 | ee->ee_ant_control[mode][6] | |
232 | (ee->ee_ant_control[mode][7] << 6) | | |
233 | (ee->ee_ant_control[mode][8] << 12) | | |
234 | (ee->ee_ant_control[mode][9] << 18) | | |
235 | (ee->ee_ant_control[mode][10] << 24); | |
236 | ||
237 | /* return new offset */ | |
238 | *offset = o; | |
239 | ||
240 | return 0; | |
241 | } | |
242 | ||
243 | /* | |
0ea9c00c NK |
244 | * Read supported modes and some mode-specific calibration data |
245 | * from eeprom | |
c6e387a2 NK |
246 | */ |
247 | static int ath5k_eeprom_read_modes(struct ath5k_hw *ah, u32 *offset, | |
248 | unsigned int mode) | |
249 | { | |
250 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
251 | u32 o = *offset; | |
252 | u16 val; | |
253 | int ret; | |
254 | ||
1048643e FF |
255 | ee->ee_n_piers[mode] = 0; |
256 | AR5K_EEPROM_READ(o++, val); | |
257 | ee->ee_adc_desired_size[mode] = (s8)((val >> 8) & 0xff); | |
258 | switch(mode) { | |
259 | case AR5K_EEPROM_MODE_11A: | |
8e218fb2 NK |
260 | ee->ee_ob[mode][3] = (val >> 5) & 0x7; |
261 | ee->ee_db[mode][3] = (val >> 2) & 0x7; | |
262 | ee->ee_ob[mode][2] = (val << 1) & 0x7; | |
1048643e FF |
263 | |
264 | AR5K_EEPROM_READ(o++, val); | |
8e218fb2 NK |
265 | ee->ee_ob[mode][2] |= (val >> 15) & 0x1; |
266 | ee->ee_db[mode][2] = (val >> 12) & 0x7; | |
267 | ee->ee_ob[mode][1] = (val >> 9) & 0x7; | |
268 | ee->ee_db[mode][1] = (val >> 6) & 0x7; | |
269 | ee->ee_ob[mode][0] = (val >> 3) & 0x7; | |
270 | ee->ee_db[mode][0] = val & 0x7; | |
1048643e FF |
271 | break; |
272 | case AR5K_EEPROM_MODE_11G: | |
273 | case AR5K_EEPROM_MODE_11B: | |
8e218fb2 NK |
274 | ee->ee_ob[mode][1] = (val >> 4) & 0x7; |
275 | ee->ee_db[mode][1] = val & 0x7; | |
1048643e FF |
276 | break; |
277 | } | |
278 | ||
c6e387a2 NK |
279 | AR5K_EEPROM_READ(o++, val); |
280 | ee->ee_tx_end2xlna_enable[mode] = (val >> 8) & 0xff; | |
281 | ee->ee_thr_62[mode] = val & 0xff; | |
282 | ||
283 | if (ah->ah_ee_version <= AR5K_EEPROM_VERSION_3_2) | |
284 | ee->ee_thr_62[mode] = mode == AR5K_EEPROM_MODE_11A ? 15 : 28; | |
285 | ||
286 | AR5K_EEPROM_READ(o++, val); | |
287 | ee->ee_tx_end2xpa_disable[mode] = (val >> 8) & 0xff; | |
288 | ee->ee_tx_frm2xpa_enable[mode] = val & 0xff; | |
289 | ||
290 | AR5K_EEPROM_READ(o++, val); | |
291 | ee->ee_pga_desired_size[mode] = (val >> 8) & 0xff; | |
292 | ||
293 | if ((val & 0xff) & 0x80) | |
294 | ee->ee_noise_floor_thr[mode] = -((((val & 0xff) ^ 0xff)) + 1); | |
295 | else | |
296 | ee->ee_noise_floor_thr[mode] = val & 0xff; | |
297 | ||
298 | if (ah->ah_ee_version <= AR5K_EEPROM_VERSION_3_2) | |
299 | ee->ee_noise_floor_thr[mode] = | |
300 | mode == AR5K_EEPROM_MODE_11A ? -54 : -1; | |
301 | ||
302 | AR5K_EEPROM_READ(o++, val); | |
303 | ee->ee_xlna_gain[mode] = (val >> 5) & 0xff; | |
304 | ee->ee_x_gain[mode] = (val >> 1) & 0xf; | |
305 | ee->ee_xpd[mode] = val & 0x1; | |
306 | ||
307 | if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0) | |
308 | ee->ee_fixed_bias[mode] = (val >> 13) & 0x1; | |
309 | ||
310 | if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_3_3) { | |
311 | AR5K_EEPROM_READ(o++, val); | |
312 | ee->ee_false_detect[mode] = (val >> 6) & 0x7f; | |
313 | ||
314 | if (mode == AR5K_EEPROM_MODE_11A) | |
315 | ee->ee_xr_power[mode] = val & 0x3f; | |
316 | else { | |
317 | ee->ee_ob[mode][0] = val & 0x7; | |
318 | ee->ee_db[mode][0] = (val >> 3) & 0x7; | |
319 | } | |
320 | } | |
321 | ||
322 | if (ah->ah_ee_version < AR5K_EEPROM_VERSION_3_4) { | |
323 | ee->ee_i_gain[mode] = AR5K_EEPROM_I_GAIN; | |
324 | ee->ee_cck_ofdm_power_delta = AR5K_EEPROM_CCK_OFDM_DELTA; | |
325 | } else { | |
326 | ee->ee_i_gain[mode] = (val >> 13) & 0x7; | |
327 | ||
328 | AR5K_EEPROM_READ(o++, val); | |
329 | ee->ee_i_gain[mode] |= (val << 3) & 0x38; | |
330 | ||
1048643e | 331 | if (mode == AR5K_EEPROM_MODE_11G) { |
c6e387a2 | 332 | ee->ee_cck_ofdm_power_delta = (val >> 3) & 0xff; |
1048643e FF |
333 | if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_6) |
334 | ee->ee_scaled_cck_delta = (val >> 11) & 0x1f; | |
335 | } | |
c6e387a2 NK |
336 | } |
337 | ||
338 | if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0 && | |
339 | mode == AR5K_EEPROM_MODE_11A) { | |
340 | ee->ee_i_cal[mode] = (val >> 8) & 0x3f; | |
341 | ee->ee_q_cal[mode] = (val >> 3) & 0x1f; | |
342 | } | |
343 | ||
1048643e FF |
344 | if (ah->ah_ee_version < AR5K_EEPROM_VERSION_4_0) |
345 | goto done; | |
346 | ||
0ea9c00c NK |
347 | /* Note: >= v5 have bg freq piers on another location |
348 | * so these freq piers are ignored for >= v5 (should be 0xff | |
349 | * anyway) */ | |
1048643e FF |
350 | switch(mode) { |
351 | case AR5K_EEPROM_MODE_11A: | |
352 | if (ah->ah_ee_version < AR5K_EEPROM_VERSION_4_1) | |
353 | break; | |
354 | ||
355 | AR5K_EEPROM_READ(o++, val); | |
356 | ee->ee_margin_tx_rx[mode] = val & 0x3f; | |
357 | break; | |
358 | case AR5K_EEPROM_MODE_11B: | |
359 | AR5K_EEPROM_READ(o++, val); | |
360 | ||
361 | ee->ee_pwr_cal_b[0].freq = | |
362 | ath5k_eeprom_bin2freq(ee, val & 0xff, mode); | |
363 | if (ee->ee_pwr_cal_b[0].freq != AR5K_EEPROM_CHANNEL_DIS) | |
364 | ee->ee_n_piers[mode]++; | |
365 | ||
366 | ee->ee_pwr_cal_b[1].freq = | |
367 | ath5k_eeprom_bin2freq(ee, (val >> 8) & 0xff, mode); | |
368 | if (ee->ee_pwr_cal_b[1].freq != AR5K_EEPROM_CHANNEL_DIS) | |
369 | ee->ee_n_piers[mode]++; | |
370 | ||
371 | AR5K_EEPROM_READ(o++, val); | |
372 | ee->ee_pwr_cal_b[2].freq = | |
373 | ath5k_eeprom_bin2freq(ee, val & 0xff, mode); | |
374 | if (ee->ee_pwr_cal_b[2].freq != AR5K_EEPROM_CHANNEL_DIS) | |
375 | ee->ee_n_piers[mode]++; | |
376 | ||
377 | if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_1) | |
378 | ee->ee_margin_tx_rx[mode] = (val >> 8) & 0x3f; | |
379 | break; | |
380 | case AR5K_EEPROM_MODE_11G: | |
381 | AR5K_EEPROM_READ(o++, val); | |
382 | ||
383 | ee->ee_pwr_cal_g[0].freq = | |
384 | ath5k_eeprom_bin2freq(ee, val & 0xff, mode); | |
385 | if (ee->ee_pwr_cal_g[0].freq != AR5K_EEPROM_CHANNEL_DIS) | |
386 | ee->ee_n_piers[mode]++; | |
387 | ||
388 | ee->ee_pwr_cal_g[1].freq = | |
389 | ath5k_eeprom_bin2freq(ee, (val >> 8) & 0xff, mode); | |
390 | if (ee->ee_pwr_cal_g[1].freq != AR5K_EEPROM_CHANNEL_DIS) | |
391 | ee->ee_n_piers[mode]++; | |
392 | ||
393 | AR5K_EEPROM_READ(o++, val); | |
394 | ee->ee_turbo_max_power[mode] = val & 0x7f; | |
395 | ee->ee_xr_power[mode] = (val >> 7) & 0x3f; | |
396 | ||
397 | AR5K_EEPROM_READ(o++, val); | |
398 | ee->ee_pwr_cal_g[2].freq = | |
399 | ath5k_eeprom_bin2freq(ee, val & 0xff, mode); | |
400 | if (ee->ee_pwr_cal_g[2].freq != AR5K_EEPROM_CHANNEL_DIS) | |
401 | ee->ee_n_piers[mode]++; | |
c6e387a2 | 402 | |
1048643e FF |
403 | if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_1) |
404 | ee->ee_margin_tx_rx[mode] = (val >> 8) & 0x3f; | |
405 | ||
406 | AR5K_EEPROM_READ(o++, val); | |
407 | ee->ee_i_cal[mode] = (val >> 8) & 0x3f; | |
408 | ee->ee_q_cal[mode] = (val >> 3) & 0x1f; | |
409 | ||
410 | if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_2) { | |
411 | AR5K_EEPROM_READ(o++, val); | |
412 | ee->ee_cck_ofdm_gain_delta = val & 0xff; | |
413 | } | |
414 | break; | |
415 | } | |
416 | ||
3b3ee43d PR |
417 | /* |
418 | * Read turbo mode information on newer EEPROM versions | |
419 | */ | |
1048643e | 420 | if (ee->ee_version < AR5K_EEPROM_VERSION_5_0) |
3b3ee43d | 421 | goto done; |
c6e387a2 | 422 | |
1048643e FF |
423 | switch (mode){ |
424 | case AR5K_EEPROM_MODE_11A: | |
425 | ee->ee_switch_settling_turbo[mode] = (val >> 6) & 0x7f; | |
c6e387a2 | 426 | |
1048643e FF |
427 | ee->ee_atn_tx_rx_turbo[mode] = (val >> 13) & 0x7; |
428 | AR5K_EEPROM_READ(o++, val); | |
429 | ee->ee_atn_tx_rx_turbo[mode] |= (val & 0x7) << 3; | |
430 | ee->ee_margin_tx_rx_turbo[mode] = (val >> 3) & 0x3f; | |
431 | ||
432 | ee->ee_adc_desired_size_turbo[mode] = (val >> 9) & 0x7f; | |
433 | AR5K_EEPROM_READ(o++, val); | |
434 | ee->ee_adc_desired_size_turbo[mode] |= (val & 0x1) << 7; | |
435 | ee->ee_pga_desired_size_turbo[mode] = (val >> 1) & 0xff; | |
436 | ||
437 | if (AR5K_EEPROM_EEMAP(ee->ee_misc0) >=2) | |
438 | ee->ee_pd_gain_overlap = (val >> 9) & 0xf; | |
439 | break; | |
440 | case AR5K_EEPROM_MODE_11G: | |
441 | ee->ee_switch_settling_turbo[mode] = (val >> 8) & 0x7f; | |
442 | ||
443 | ee->ee_atn_tx_rx_turbo[mode] = (val >> 15) & 0x7; | |
444 | AR5K_EEPROM_READ(o++, val); | |
445 | ee->ee_atn_tx_rx_turbo[mode] |= (val & 0x1f) << 1; | |
446 | ee->ee_margin_tx_rx_turbo[mode] = (val >> 5) & 0x3f; | |
447 | ||
448 | ee->ee_adc_desired_size_turbo[mode] = (val >> 11) & 0x7f; | |
449 | AR5K_EEPROM_READ(o++, val); | |
450 | ee->ee_adc_desired_size_turbo[mode] |= (val & 0x7) << 5; | |
451 | ee->ee_pga_desired_size_turbo[mode] = (val >> 3) & 0xff; | |
452 | break; | |
453 | } | |
454 | ||
3b3ee43d | 455 | done: |
1048643e FF |
456 | /* return new offset */ |
457 | *offset = o; | |
458 | ||
459 | return 0; | |
460 | } | |
461 | ||
0ea9c00c | 462 | /* Read mode-specific data (except power calibration data) */ |
1048643e FF |
463 | static int |
464 | ath5k_eeprom_init_modes(struct ath5k_hw *ah) | |
465 | { | |
466 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
467 | u32 mode_offset[3]; | |
468 | unsigned int mode; | |
469 | u32 offset; | |
470 | int ret; | |
c6e387a2 | 471 | |
c6e387a2 | 472 | /* |
1048643e | 473 | * Get values for all modes |
c6e387a2 | 474 | */ |
1048643e FF |
475 | mode_offset[AR5K_EEPROM_MODE_11A] = AR5K_EEPROM_MODES_11A(ah->ah_ee_version); |
476 | mode_offset[AR5K_EEPROM_MODE_11B] = AR5K_EEPROM_MODES_11B(ah->ah_ee_version); | |
477 | mode_offset[AR5K_EEPROM_MODE_11G] = AR5K_EEPROM_MODES_11G(ah->ah_ee_version); | |
478 | ||
479 | ee->ee_turbo_max_power[AR5K_EEPROM_MODE_11A] = | |
480 | AR5K_EEPROM_HDR_T_5GHZ_DBM(ee->ee_header); | |
481 | ||
482 | for (mode = AR5K_EEPROM_MODE_11A; mode <= AR5K_EEPROM_MODE_11G; mode++) { | |
483 | offset = mode_offset[mode]; | |
484 | ||
485 | ret = ath5k_eeprom_read_ants(ah, &offset, mode); | |
486 | if (ret) | |
487 | return ret; | |
488 | ||
489 | ret = ath5k_eeprom_read_modes(ah, &offset, mode); | |
490 | if (ret) | |
491 | return ret; | |
c6e387a2 | 492 | } |
1048643e FF |
493 | |
494 | /* override for older eeprom versions for better performance */ | |
495 | if (ah->ah_ee_version <= AR5K_EEPROM_VERSION_3_2) { | |
496 | ee->ee_thr_62[AR5K_EEPROM_MODE_11A] = 15; | |
497 | ee->ee_thr_62[AR5K_EEPROM_MODE_11B] = 28; | |
498 | ee->ee_thr_62[AR5K_EEPROM_MODE_11G] = 28; | |
c6e387a2 | 499 | } |
c6e387a2 | 500 | |
1048643e FF |
501 | return 0; |
502 | } | |
c6e387a2 | 503 | |
0ea9c00c NK |
504 | /* Read the frequency piers for each mode (mostly used on newer eeproms with 0xff |
505 | * frequency mask) */ | |
1048643e FF |
506 | static inline int |
507 | ath5k_eeprom_read_freq_list(struct ath5k_hw *ah, int *offset, int max, | |
0ea9c00c | 508 | struct ath5k_chan_pcal_info *pc, unsigned int mode) |
1048643e | 509 | { |
0ea9c00c | 510 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; |
1048643e FF |
511 | int o = *offset; |
512 | int i = 0; | |
0ea9c00c | 513 | u8 freq1, freq2; |
1048643e FF |
514 | int ret; |
515 | u16 val; | |
516 | ||
8e218fb2 | 517 | ee->ee_n_piers[mode] = 0; |
1048643e FF |
518 | while(i < max) { |
519 | AR5K_EEPROM_READ(o++, val); | |
520 | ||
8e218fb2 NK |
521 | freq1 = val & 0xff; |
522 | if (!freq1) | |
523 | break; | |
1048643e | 524 | |
8e218fb2 NK |
525 | pc[i++].freq = ath5k_eeprom_bin2freq(ee, |
526 | freq1, mode); | |
527 | ee->ee_n_piers[mode]++; | |
1048643e | 528 | |
8e218fb2 NK |
529 | freq2 = (val >> 8) & 0xff; |
530 | if (!freq2) | |
1048643e | 531 | break; |
8e218fb2 NK |
532 | |
533 | pc[i++].freq = ath5k_eeprom_bin2freq(ee, | |
534 | freq2, mode); | |
535 | ee->ee_n_piers[mode]++; | |
c6e387a2 | 536 | } |
0ea9c00c NK |
537 | |
538 | /* return new offset */ | |
1048643e | 539 | *offset = o; |
c6e387a2 | 540 | |
1048643e FF |
541 | return 0; |
542 | } | |
543 | ||
0ea9c00c | 544 | /* Read frequency piers for 802.11a */ |
1048643e FF |
545 | static int |
546 | ath5k_eeprom_init_11a_pcal_freq(struct ath5k_hw *ah, int offset) | |
547 | { | |
548 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
549 | struct ath5k_chan_pcal_info *pcal = ee->ee_pwr_cal_a; | |
550 | int i, ret; | |
551 | u16 val; | |
552 | u8 mask; | |
553 | ||
554 | if (ee->ee_version >= AR5K_EEPROM_VERSION_3_3) { | |
555 | ath5k_eeprom_read_freq_list(ah, &offset, | |
556 | AR5K_EEPROM_N_5GHZ_CHAN, pcal, | |
0ea9c00c | 557 | AR5K_EEPROM_MODE_11A); |
1048643e FF |
558 | } else { |
559 | mask = AR5K_EEPROM_FREQ_M(ah->ah_ee_version); | |
c6e387a2 | 560 | |
c6e387a2 | 561 | AR5K_EEPROM_READ(offset++, val); |
1048643e FF |
562 | pcal[0].freq = (val >> 9) & mask; |
563 | pcal[1].freq = (val >> 2) & mask; | |
564 | pcal[2].freq = (val << 5) & mask; | |
565 | ||
566 | AR5K_EEPROM_READ(offset++, val); | |
567 | pcal[2].freq |= (val >> 11) & 0x1f; | |
568 | pcal[3].freq = (val >> 4) & mask; | |
569 | pcal[4].freq = (val << 3) & mask; | |
570 | ||
571 | AR5K_EEPROM_READ(offset++, val); | |
572 | pcal[4].freq |= (val >> 13) & 0x7; | |
573 | pcal[5].freq = (val >> 6) & mask; | |
574 | pcal[6].freq = (val << 1) & mask; | |
575 | ||
576 | AR5K_EEPROM_READ(offset++, val); | |
577 | pcal[6].freq |= (val >> 15) & 0x1; | |
578 | pcal[7].freq = (val >> 8) & mask; | |
579 | pcal[8].freq = (val >> 1) & mask; | |
580 | pcal[9].freq = (val << 6) & mask; | |
581 | ||
582 | AR5K_EEPROM_READ(offset++, val); | |
583 | pcal[9].freq |= (val >> 10) & 0x3f; | |
0ea9c00c NK |
584 | |
585 | /* Fixed number of piers */ | |
1048643e | 586 | ee->ee_n_piers[AR5K_EEPROM_MODE_11A] = 10; |
c6e387a2 | 587 | |
0ea9c00c NK |
588 | for (i = 0; i < AR5K_EEPROM_N_5GHZ_CHAN; i++) { |
589 | pcal[i].freq = ath5k_eeprom_bin2freq(ee, | |
1048643e | 590 | pcal[i].freq, AR5K_EEPROM_MODE_11A); |
0ea9c00c | 591 | } |
1048643e | 592 | } |
c6e387a2 | 593 | |
1048643e FF |
594 | return 0; |
595 | } | |
c6e387a2 | 596 | |
0ea9c00c | 597 | /* Read frequency piers for 802.11bg on eeprom versions >= 5 and eemap >= 2 */ |
1048643e FF |
598 | static inline int |
599 | ath5k_eeprom_init_11bg_2413(struct ath5k_hw *ah, unsigned int mode, int offset) | |
600 | { | |
601 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
602 | struct ath5k_chan_pcal_info *pcal; | |
1048643e FF |
603 | |
604 | switch(mode) { | |
605 | case AR5K_EEPROM_MODE_11B: | |
606 | pcal = ee->ee_pwr_cal_b; | |
607 | break; | |
608 | case AR5K_EEPROM_MODE_11G: | |
609 | pcal = ee->ee_pwr_cal_g; | |
610 | break; | |
611 | default: | |
612 | return -EINVAL; | |
613 | } | |
c6e387a2 | 614 | |
1048643e FF |
615 | ath5k_eeprom_read_freq_list(ah, &offset, |
616 | AR5K_EEPROM_N_2GHZ_CHAN_2413, pcal, | |
0ea9c00c | 617 | mode); |
c6e387a2 | 618 | |
1048643e FF |
619 | return 0; |
620 | } | |
c6e387a2 | 621 | |
8e218fb2 NK |
622 | /* |
623 | * Read power calibration for RF5111 chips | |
624 | * | |
0ea9c00c | 625 | * For RF5111 we have an XPD -eXternal Power Detector- curve |
8e218fb2 NK |
626 | * for each calibrated channel. Each curve has 0,5dB Power steps |
627 | * on x axis and PCDAC steps (offsets) on y axis and looks like an | |
628 | * exponential function. To recreate the curve we read 11 points | |
629 | * here and interpolate later. | |
0ea9c00c | 630 | */ |
8e218fb2 NK |
631 | |
632 | /* Used to match PCDAC steps with power values on RF5111 chips | |
633 | * (eeprom versions < 4). For RF5111 we have 11 pre-defined PCDAC | |
634 | * steps that match with the power values we read from eeprom. On | |
635 | * older eeprom versions (< 3.2) these steps are equaly spaced at | |
636 | * 10% of the pcdac curve -until the curve reaches it's maximum- | |
637 | * (11 steps from 0 to 100%) but on newer eeprom versions (>= 3.2) | |
638 | * these 11 steps are spaced in a different way. This function returns | |
639 | * the pcdac steps based on eeprom version and curve min/max so that we | |
640 | * can have pcdac/pwr points. | |
641 | */ | |
642 | static inline void | |
643 | ath5k_get_pcdac_intercepts(struct ath5k_hw *ah, u8 min, u8 max, u8 *vp) | |
644 | { | |
bbb33881 | 645 | static const u16 intercepts3[] = |
8e218fb2 | 646 | { 0, 5, 10, 20, 30, 50, 70, 85, 90, 95, 100 }; |
bbb33881 | 647 | static const u16 intercepts3_2[] = |
8e218fb2 NK |
648 | { 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 }; |
649 | const u16 *ip; | |
650 | int i; | |
651 | ||
652 | if (ah->ah_ee_version >= AR5K_EEPROM_VERSION_3_2) | |
653 | ip = intercepts3_2; | |
654 | else | |
655 | ip = intercepts3; | |
656 | ||
657 | for (i = 0; i < ARRAY_SIZE(intercepts3); i++) | |
658 | vp[i] = (ip[i] * max + (100 - ip[i]) * min) / 100; | |
659 | } | |
660 | ||
661 | /* Convert RF5111 specific data to generic raw data | |
662 | * used by interpolation code */ | |
663 | static int | |
664 | ath5k_eeprom_convert_pcal_info_5111(struct ath5k_hw *ah, int mode, | |
665 | struct ath5k_chan_pcal_info *chinfo) | |
666 | { | |
667 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
668 | struct ath5k_chan_pcal_info_rf5111 *pcinfo; | |
669 | struct ath5k_pdgain_info *pd; | |
670 | u8 pier, point, idx; | |
671 | u8 *pdgain_idx = ee->ee_pdc_to_idx[mode]; | |
672 | ||
673 | /* Fill raw data for each calibration pier */ | |
674 | for (pier = 0; pier < ee->ee_n_piers[mode]; pier++) { | |
675 | ||
676 | pcinfo = &chinfo[pier].rf5111_info; | |
677 | ||
678 | /* Allocate pd_curves for this cal pier */ | |
679 | chinfo[pier].pd_curves = | |
680 | kcalloc(AR5K_EEPROM_N_PD_CURVES, | |
681 | sizeof(struct ath5k_pdgain_info), | |
682 | GFP_KERNEL); | |
683 | ||
684 | if (!chinfo[pier].pd_curves) | |
685 | return -ENOMEM; | |
686 | ||
687 | /* Only one curve for RF5111 | |
688 | * find out which one and place | |
689 | * in in pd_curves. | |
690 | * Note: ee_x_gain is reversed here */ | |
691 | for (idx = 0; idx < AR5K_EEPROM_N_PD_CURVES; idx++) { | |
692 | ||
693 | if (!((ee->ee_x_gain[mode] >> idx) & 0x1)) { | |
694 | pdgain_idx[0] = idx; | |
695 | break; | |
696 | } | |
697 | } | |
698 | ||
699 | ee->ee_pd_gains[mode] = 1; | |
700 | ||
701 | pd = &chinfo[pier].pd_curves[idx]; | |
702 | ||
703 | pd->pd_points = AR5K_EEPROM_N_PWR_POINTS_5111; | |
704 | ||
705 | /* Allocate pd points for this curve */ | |
706 | pd->pd_step = kcalloc(AR5K_EEPROM_N_PWR_POINTS_5111, | |
707 | sizeof(u8), GFP_KERNEL); | |
708 | if (!pd->pd_step) | |
709 | return -ENOMEM; | |
710 | ||
711 | pd->pd_pwr = kcalloc(AR5K_EEPROM_N_PWR_POINTS_5111, | |
712 | sizeof(s16), GFP_KERNEL); | |
713 | if (!pd->pd_pwr) | |
714 | return -ENOMEM; | |
715 | ||
716 | /* Fill raw dataset | |
717 | * (convert power to 0.25dB units | |
718 | * for RF5112 combatibility) */ | |
719 | for (point = 0; point < pd->pd_points; point++) { | |
720 | ||
721 | /* Absolute values */ | |
722 | pd->pd_pwr[point] = 2 * pcinfo->pwr[point]; | |
723 | ||
724 | /* Already sorted */ | |
725 | pd->pd_step[point] = pcinfo->pcdac[point]; | |
726 | } | |
727 | ||
728 | /* Set min/max pwr */ | |
729 | chinfo[pier].min_pwr = pd->pd_pwr[0]; | |
730 | chinfo[pier].max_pwr = pd->pd_pwr[10]; | |
731 | ||
732 | } | |
733 | ||
734 | return 0; | |
735 | } | |
736 | ||
737 | /* Parse EEPROM data */ | |
1048643e FF |
738 | static int |
739 | ath5k_eeprom_read_pcal_info_5111(struct ath5k_hw *ah, int mode) | |
740 | { | |
741 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
742 | struct ath5k_chan_pcal_info *pcal; | |
743 | int offset, ret; | |
eaee7cc2 | 744 | int i; |
1048643e FF |
745 | u16 val; |
746 | ||
747 | offset = AR5K_EEPROM_GROUPS_START(ee->ee_version); | |
748 | switch(mode) { | |
749 | case AR5K_EEPROM_MODE_11A: | |
750 | if (!AR5K_EEPROM_HDR_11A(ee->ee_header)) | |
751 | return 0; | |
752 | ||
753 | ret = ath5k_eeprom_init_11a_pcal_freq(ah, | |
754 | offset + AR5K_EEPROM_GROUP1_OFFSET); | |
755 | if (ret < 0) | |
756 | return ret; | |
757 | ||
758 | offset += AR5K_EEPROM_GROUP2_OFFSET; | |
759 | pcal = ee->ee_pwr_cal_a; | |
760 | break; | |
761 | case AR5K_EEPROM_MODE_11B: | |
762 | if (!AR5K_EEPROM_HDR_11B(ee->ee_header) && | |
763 | !AR5K_EEPROM_HDR_11G(ee->ee_header)) | |
764 | return 0; | |
765 | ||
766 | pcal = ee->ee_pwr_cal_b; | |
767 | offset += AR5K_EEPROM_GROUP3_OFFSET; | |
768 | ||
769 | /* fixed piers */ | |
770 | pcal[0].freq = 2412; | |
771 | pcal[1].freq = 2447; | |
772 | pcal[2].freq = 2484; | |
773 | ee->ee_n_piers[mode] = 3; | |
774 | break; | |
775 | case AR5K_EEPROM_MODE_11G: | |
776 | if (!AR5K_EEPROM_HDR_11G(ee->ee_header)) | |
777 | return 0; | |
778 | ||
779 | pcal = ee->ee_pwr_cal_g; | |
780 | offset += AR5K_EEPROM_GROUP4_OFFSET; | |
781 | ||
782 | /* fixed piers */ | |
783 | pcal[0].freq = 2312; | |
784 | pcal[1].freq = 2412; | |
785 | pcal[2].freq = 2484; | |
786 | ee->ee_n_piers[mode] = 3; | |
787 | break; | |
788 | default: | |
789 | return -EINVAL; | |
c6e387a2 NK |
790 | } |
791 | ||
1048643e FF |
792 | for (i = 0; i < ee->ee_n_piers[mode]; i++) { |
793 | struct ath5k_chan_pcal_info_rf5111 *cdata = | |
794 | &pcal[i].rf5111_info; | |
c6e387a2 | 795 | |
1048643e FF |
796 | AR5K_EEPROM_READ(offset++, val); |
797 | cdata->pcdac_max = ((val >> 10) & AR5K_EEPROM_PCDAC_M); | |
798 | cdata->pcdac_min = ((val >> 4) & AR5K_EEPROM_PCDAC_M); | |
799 | cdata->pwr[0] = ((val << 2) & AR5K_EEPROM_POWER_M); | |
c6e387a2 | 800 | |
1048643e FF |
801 | AR5K_EEPROM_READ(offset++, val); |
802 | cdata->pwr[0] |= ((val >> 14) & 0x3); | |
803 | cdata->pwr[1] = ((val >> 8) & AR5K_EEPROM_POWER_M); | |
804 | cdata->pwr[2] = ((val >> 2) & AR5K_EEPROM_POWER_M); | |
805 | cdata->pwr[3] = ((val << 4) & AR5K_EEPROM_POWER_M); | |
c6e387a2 | 806 | |
1048643e FF |
807 | AR5K_EEPROM_READ(offset++, val); |
808 | cdata->pwr[3] |= ((val >> 12) & 0xf); | |
809 | cdata->pwr[4] = ((val >> 6) & AR5K_EEPROM_POWER_M); | |
810 | cdata->pwr[5] = (val & AR5K_EEPROM_POWER_M); | |
c6e387a2 | 811 | |
c6e387a2 | 812 | AR5K_EEPROM_READ(offset++, val); |
1048643e FF |
813 | cdata->pwr[6] = ((val >> 10) & AR5K_EEPROM_POWER_M); |
814 | cdata->pwr[7] = ((val >> 4) & AR5K_EEPROM_POWER_M); | |
815 | cdata->pwr[8] = ((val << 2) & AR5K_EEPROM_POWER_M); | |
c6e387a2 NK |
816 | |
817 | AR5K_EEPROM_READ(offset++, val); | |
1048643e FF |
818 | cdata->pwr[8] |= ((val >> 14) & 0x3); |
819 | cdata->pwr[9] = ((val >> 8) & AR5K_EEPROM_POWER_M); | |
820 | cdata->pwr[10] = ((val >> 2) & AR5K_EEPROM_POWER_M); | |
821 | ||
822 | ath5k_get_pcdac_intercepts(ah, cdata->pcdac_min, | |
823 | cdata->pcdac_max, cdata->pcdac); | |
c6e387a2 NK |
824 | } |
825 | ||
8e218fb2 | 826 | return ath5k_eeprom_convert_pcal_info_5111(ah, mode, pcal); |
1048643e | 827 | } |
c6e387a2 | 828 | |
8e218fb2 NK |
829 | |
830 | /* | |
831 | * Read power calibration for RF5112 chips | |
832 | * | |
0ea9c00c NK |
833 | * For RF5112 we have 4 XPD -eXternal Power Detector- curves |
834 | * for each calibrated channel on 0, -6, -12 and -18dbm but we only | |
8e218fb2 NK |
835 | * use the higher (3) and the lower (0) curves. Each curve has 0.5dB |
836 | * power steps on x axis and PCDAC steps on y axis and looks like a | |
837 | * linear function. To recreate the curve and pass the power values | |
838 | * on hw, we read 4 points for xpd 0 (lower gain -> max power) | |
839 | * and 3 points for xpd 3 (higher gain -> lower power) here and | |
840 | * interpolate later. | |
0ea9c00c NK |
841 | * |
842 | * Note: Many vendors just use xpd 0 so xpd 3 is zeroed. | |
843 | */ | |
8e218fb2 NK |
844 | |
845 | /* Convert RF5112 specific data to generic raw data | |
846 | * used by interpolation code */ | |
847 | static int | |
848 | ath5k_eeprom_convert_pcal_info_5112(struct ath5k_hw *ah, int mode, | |
849 | struct ath5k_chan_pcal_info *chinfo) | |
850 | { | |
851 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
852 | struct ath5k_chan_pcal_info_rf5112 *pcinfo; | |
853 | u8 *pdgain_idx = ee->ee_pdc_to_idx[mode]; | |
854 | unsigned int pier, pdg, point; | |
855 | ||
856 | /* Fill raw data for each calibration pier */ | |
857 | for (pier = 0; pier < ee->ee_n_piers[mode]; pier++) { | |
858 | ||
859 | pcinfo = &chinfo[pier].rf5112_info; | |
860 | ||
861 | /* Allocate pd_curves for this cal pier */ | |
862 | chinfo[pier].pd_curves = | |
863 | kcalloc(AR5K_EEPROM_N_PD_CURVES, | |
864 | sizeof(struct ath5k_pdgain_info), | |
865 | GFP_KERNEL); | |
866 | ||
867 | if (!chinfo[pier].pd_curves) | |
868 | return -ENOMEM; | |
869 | ||
870 | /* Fill pd_curves */ | |
871 | for (pdg = 0; pdg < ee->ee_pd_gains[mode]; pdg++) { | |
872 | ||
873 | u8 idx = pdgain_idx[pdg]; | |
874 | struct ath5k_pdgain_info *pd = | |
875 | &chinfo[pier].pd_curves[idx]; | |
876 | ||
877 | /* Lowest gain curve (max power) */ | |
878 | if (pdg == 0) { | |
879 | /* One more point for better accuracy */ | |
880 | pd->pd_points = AR5K_EEPROM_N_XPD0_POINTS; | |
881 | ||
882 | /* Allocate pd points for this curve */ | |
883 | pd->pd_step = kcalloc(pd->pd_points, | |
884 | sizeof(u8), GFP_KERNEL); | |
885 | ||
886 | if (!pd->pd_step) | |
887 | return -ENOMEM; | |
888 | ||
889 | pd->pd_pwr = kcalloc(pd->pd_points, | |
890 | sizeof(s16), GFP_KERNEL); | |
891 | ||
892 | if (!pd->pd_pwr) | |
893 | return -ENOMEM; | |
894 | ||
895 | ||
896 | /* Fill raw dataset | |
897 | * (all power levels are in 0.25dB units) */ | |
898 | pd->pd_step[0] = pcinfo->pcdac_x0[0]; | |
899 | pd->pd_pwr[0] = pcinfo->pwr_x0[0]; | |
900 | ||
901 | for (point = 1; point < pd->pd_points; | |
902 | point++) { | |
903 | /* Absolute values */ | |
904 | pd->pd_pwr[point] = | |
905 | pcinfo->pwr_x0[point]; | |
906 | ||
907 | /* Deltas */ | |
908 | pd->pd_step[point] = | |
909 | pd->pd_step[point - 1] + | |
910 | pcinfo->pcdac_x0[point]; | |
911 | } | |
912 | ||
913 | /* Set min power for this frequency */ | |
914 | chinfo[pier].min_pwr = pd->pd_pwr[0]; | |
915 | ||
916 | /* Highest gain curve (min power) */ | |
917 | } else if (pdg == 1) { | |
918 | ||
919 | pd->pd_points = AR5K_EEPROM_N_XPD3_POINTS; | |
920 | ||
921 | /* Allocate pd points for this curve */ | |
922 | pd->pd_step = kcalloc(pd->pd_points, | |
923 | sizeof(u8), GFP_KERNEL); | |
924 | ||
925 | if (!pd->pd_step) | |
926 | return -ENOMEM; | |
927 | ||
928 | pd->pd_pwr = kcalloc(pd->pd_points, | |
929 | sizeof(s16), GFP_KERNEL); | |
930 | ||
931 | if (!pd->pd_pwr) | |
932 | return -ENOMEM; | |
933 | ||
934 | /* Fill raw dataset | |
935 | * (all power levels are in 0.25dB units) */ | |
936 | for (point = 0; point < pd->pd_points; | |
937 | point++) { | |
938 | /* Absolute values */ | |
939 | pd->pd_pwr[point] = | |
940 | pcinfo->pwr_x3[point]; | |
941 | ||
942 | /* Fixed points */ | |
943 | pd->pd_step[point] = | |
944 | pcinfo->pcdac_x3[point]; | |
945 | } | |
946 | ||
947 | /* Since we have a higher gain curve | |
948 | * override min power */ | |
949 | chinfo[pier].min_pwr = pd->pd_pwr[0]; | |
950 | } | |
951 | } | |
952 | } | |
953 | ||
954 | return 0; | |
955 | } | |
956 | ||
957 | /* Parse EEPROM data */ | |
1048643e FF |
958 | static int |
959 | ath5k_eeprom_read_pcal_info_5112(struct ath5k_hw *ah, int mode) | |
960 | { | |
961 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
962 | struct ath5k_chan_pcal_info_rf5112 *chan_pcal_info; | |
963 | struct ath5k_chan_pcal_info *gen_chan_info; | |
8e218fb2 | 964 | u8 *pdgain_idx = ee->ee_pdc_to_idx[mode]; |
1048643e | 965 | u32 offset; |
8e218fb2 | 966 | u8 i, c; |
1048643e FF |
967 | u16 val; |
968 | int ret; | |
8e218fb2 NK |
969 | u8 pd_gains = 0; |
970 | ||
971 | /* Count how many curves we have and | |
972 | * identify them (which one of the 4 | |
973 | * available curves we have on each count). | |
974 | * Curves are stored from lower (x0) to | |
975 | * higher (x3) gain */ | |
976 | for (i = 0; i < AR5K_EEPROM_N_PD_CURVES; i++) { | |
977 | /* ee_x_gain[mode] is x gain mask */ | |
978 | if ((ee->ee_x_gain[mode] >> i) & 0x1) | |
979 | pdgain_idx[pd_gains++] = i; | |
980 | } | |
981 | ee->ee_pd_gains[mode] = pd_gains; | |
982 | ||
983 | if (pd_gains == 0 || pd_gains > 2) | |
984 | return -EINVAL; | |
c6e387a2 | 985 | |
1048643e FF |
986 | switch (mode) { |
987 | case AR5K_EEPROM_MODE_11A: | |
988 | /* | |
989 | * Read 5GHz EEPROM channels | |
990 | */ | |
991 | offset = AR5K_EEPROM_GROUPS_START(ee->ee_version); | |
992 | ath5k_eeprom_init_11a_pcal_freq(ah, offset); | |
993 | ||
994 | offset += AR5K_EEPROM_GROUP2_OFFSET; | |
995 | gen_chan_info = ee->ee_pwr_cal_a; | |
996 | break; | |
997 | case AR5K_EEPROM_MODE_11B: | |
998 | offset = AR5K_EEPROM_GROUPS_START(ee->ee_version); | |
999 | if (AR5K_EEPROM_HDR_11A(ee->ee_header)) | |
1000 | offset += AR5K_EEPROM_GROUP3_OFFSET; | |
1001 | ||
1002 | /* NB: frequency piers parsed during mode init */ | |
1003 | gen_chan_info = ee->ee_pwr_cal_b; | |
1004 | break; | |
1005 | case AR5K_EEPROM_MODE_11G: | |
1006 | offset = AR5K_EEPROM_GROUPS_START(ee->ee_version); | |
1007 | if (AR5K_EEPROM_HDR_11A(ee->ee_header)) | |
1008 | offset += AR5K_EEPROM_GROUP4_OFFSET; | |
1009 | else if (AR5K_EEPROM_HDR_11B(ee->ee_header)) | |
1010 | offset += AR5K_EEPROM_GROUP2_OFFSET; | |
1011 | ||
1012 | /* NB: frequency piers parsed during mode init */ | |
1013 | gen_chan_info = ee->ee_pwr_cal_g; | |
1014 | break; | |
1015 | default: | |
1016 | return -EINVAL; | |
1017 | } | |
c6e387a2 | 1018 | |
1048643e FF |
1019 | for (i = 0; i < ee->ee_n_piers[mode]; i++) { |
1020 | chan_pcal_info = &gen_chan_info[i].rf5112_info; | |
c6e387a2 | 1021 | |
8e218fb2 | 1022 | /* Power values in quarter dB |
1048643e FF |
1023 | * for the lower xpd gain curve |
1024 | * (0 dBm -> higher output power) */ | |
1025 | for (c = 0; c < AR5K_EEPROM_N_XPD0_POINTS; c++) { | |
1026 | AR5K_EEPROM_READ(offset++, val); | |
8e218fb2 NK |
1027 | chan_pcal_info->pwr_x0[c] = (s8) (val & 0xff); |
1028 | chan_pcal_info->pwr_x0[++c] = (s8) ((val >> 8) & 0xff); | |
1048643e | 1029 | } |
c6e387a2 | 1030 | |
1048643e FF |
1031 | /* PCDAC steps |
1032 | * corresponding to the above power | |
1033 | * measurements */ | |
c6e387a2 | 1034 | AR5K_EEPROM_READ(offset++, val); |
1048643e FF |
1035 | chan_pcal_info->pcdac_x0[1] = (val & 0x1f); |
1036 | chan_pcal_info->pcdac_x0[2] = ((val >> 5) & 0x1f); | |
1037 | chan_pcal_info->pcdac_x0[3] = ((val >> 10) & 0x1f); | |
c6e387a2 | 1038 | |
8e218fb2 | 1039 | /* Power values in quarter dB |
1048643e FF |
1040 | * for the higher xpd gain curve |
1041 | * (18 dBm -> lower output power) */ | |
c6e387a2 | 1042 | AR5K_EEPROM_READ(offset++, val); |
8e218fb2 NK |
1043 | chan_pcal_info->pwr_x3[0] = (s8) (val & 0xff); |
1044 | chan_pcal_info->pwr_x3[1] = (s8) ((val >> 8) & 0xff); | |
c6e387a2 NK |
1045 | |
1046 | AR5K_EEPROM_READ(offset++, val); | |
1048643e FF |
1047 | chan_pcal_info->pwr_x3[2] = (val & 0xff); |
1048 | ||
1049 | /* PCDAC steps | |
1050 | * corresponding to the above power | |
0ea9c00c | 1051 | * measurements (fixed) */ |
1048643e FF |
1052 | chan_pcal_info->pcdac_x3[0] = 20; |
1053 | chan_pcal_info->pcdac_x3[1] = 35; | |
1054 | chan_pcal_info->pcdac_x3[2] = 63; | |
1055 | ||
1056 | if (ee->ee_version >= AR5K_EEPROM_VERSION_4_3) { | |
8e218fb2 | 1057 | chan_pcal_info->pcdac_x0[0] = ((val >> 8) & 0x3f); |
1048643e FF |
1058 | |
1059 | /* Last xpd0 power level is also channel maximum */ | |
1060 | gen_chan_info[i].max_pwr = chan_pcal_info->pwr_x0[3]; | |
1061 | } else { | |
1062 | chan_pcal_info->pcdac_x0[0] = 1; | |
8e218fb2 | 1063 | gen_chan_info[i].max_pwr = (s8) ((val >> 8) & 0xff); |
1048643e | 1064 | } |
c6e387a2 | 1065 | |
1048643e FF |
1066 | } |
1067 | ||
8e218fb2 | 1068 | return ath5k_eeprom_convert_pcal_info_5112(ah, mode, gen_chan_info); |
1048643e FF |
1069 | } |
1070 | ||
8e218fb2 NK |
1071 | |
1072 | /* | |
1073 | * Read power calibration for RF2413 chips | |
1074 | * | |
1075 | * For RF2413 we have a Power to PDDAC table (Power Detector) | |
1076 | * instead of a PCDAC and 4 pd gain curves for each calibrated channel. | |
1077 | * Each curve has power on x axis in 0.5 db steps and PDDADC steps on y | |
1078 | * axis and looks like an exponential function like the RF5111 curve. | |
1079 | * | |
1080 | * To recreate the curves we read here the points and interpolate | |
1081 | * later. Note that in most cases only 2 (higher and lower) curves are | |
1082 | * used (like RF5112) but vendors have the oportunity to include all | |
1083 | * 4 curves on eeprom. The final curve (higher power) has an extra | |
1084 | * point for better accuracy like RF5112. | |
1085 | */ | |
1086 | ||
0ea9c00c NK |
1087 | /* For RF2413 power calibration data doesn't start on a fixed location and |
1088 | * if a mode is not supported, it's section is missing -not zeroed-. | |
1089 | * So we need to calculate the starting offset for each section by using | |
1090 | * these two functions */ | |
1091 | ||
1092 | /* Return the size of each section based on the mode and the number of pd | |
1093 | * gains available (maximum 4). */ | |
1048643e FF |
1094 | static inline unsigned int |
1095 | ath5k_pdgains_size_2413(struct ath5k_eeprom_info *ee, unsigned int mode) | |
1096 | { | |
1097 | static const unsigned int pdgains_size[] = { 4, 6, 9, 12 }; | |
1098 | unsigned int sz; | |
1099 | ||
1100 | sz = pdgains_size[ee->ee_pd_gains[mode] - 1]; | |
1101 | sz *= ee->ee_n_piers[mode]; | |
1102 | ||
1103 | return sz; | |
1104 | } | |
1105 | ||
0ea9c00c NK |
1106 | /* Return the starting offset for a section based on the modes supported |
1107 | * and each section's size. */ | |
1048643e FF |
1108 | static unsigned int |
1109 | ath5k_cal_data_offset_2413(struct ath5k_eeprom_info *ee, int mode) | |
1110 | { | |
1111 | u32 offset = AR5K_EEPROM_CAL_DATA_START(ee->ee_misc4); | |
1112 | ||
1113 | switch(mode) { | |
1114 | case AR5K_EEPROM_MODE_11G: | |
1115 | if (AR5K_EEPROM_HDR_11B(ee->ee_header)) | |
8e218fb2 NK |
1116 | offset += ath5k_pdgains_size_2413(ee, |
1117 | AR5K_EEPROM_MODE_11B) + | |
1118 | AR5K_EEPROM_N_2GHZ_CHAN_2413 / 2; | |
1048643e FF |
1119 | /* fall through */ |
1120 | case AR5K_EEPROM_MODE_11B: | |
1121 | if (AR5K_EEPROM_HDR_11A(ee->ee_header)) | |
8e218fb2 NK |
1122 | offset += ath5k_pdgains_size_2413(ee, |
1123 | AR5K_EEPROM_MODE_11A) + | |
1124 | AR5K_EEPROM_N_5GHZ_CHAN / 2; | |
1048643e FF |
1125 | /* fall through */ |
1126 | case AR5K_EEPROM_MODE_11A: | |
1127 | break; | |
1128 | default: | |
1129 | break; | |
1130 | } | |
1131 | ||
1132 | return offset; | |
1133 | } | |
1134 | ||
8e218fb2 NK |
1135 | /* Convert RF2413 specific data to generic raw data |
1136 | * used by interpolation code */ | |
1137 | static int | |
1138 | ath5k_eeprom_convert_pcal_info_2413(struct ath5k_hw *ah, int mode, | |
1139 | struct ath5k_chan_pcal_info *chinfo) | |
1140 | { | |
1141 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
1142 | struct ath5k_chan_pcal_info_rf2413 *pcinfo; | |
1143 | u8 *pdgain_idx = ee->ee_pdc_to_idx[mode]; | |
1144 | unsigned int pier, pdg, point; | |
1145 | ||
1146 | /* Fill raw data for each calibration pier */ | |
1147 | for (pier = 0; pier < ee->ee_n_piers[mode]; pier++) { | |
1148 | ||
1149 | pcinfo = &chinfo[pier].rf2413_info; | |
1150 | ||
1151 | /* Allocate pd_curves for this cal pier */ | |
1152 | chinfo[pier].pd_curves = | |
1153 | kcalloc(AR5K_EEPROM_N_PD_CURVES, | |
1154 | sizeof(struct ath5k_pdgain_info), | |
1155 | GFP_KERNEL); | |
1156 | ||
1157 | if (!chinfo[pier].pd_curves) | |
1158 | return -ENOMEM; | |
1159 | ||
1160 | /* Fill pd_curves */ | |
1161 | for (pdg = 0; pdg < ee->ee_pd_gains[mode]; pdg++) { | |
1162 | ||
1163 | u8 idx = pdgain_idx[pdg]; | |
1164 | struct ath5k_pdgain_info *pd = | |
1165 | &chinfo[pier].pd_curves[idx]; | |
1166 | ||
1167 | /* One more point for the highest power | |
1168 | * curve (lowest gain) */ | |
1169 | if (pdg == ee->ee_pd_gains[mode] - 1) | |
1170 | pd->pd_points = AR5K_EEPROM_N_PD_POINTS; | |
1171 | else | |
1172 | pd->pd_points = AR5K_EEPROM_N_PD_POINTS - 1; | |
1173 | ||
1174 | /* Allocate pd points for this curve */ | |
1175 | pd->pd_step = kcalloc(pd->pd_points, | |
1176 | sizeof(u8), GFP_KERNEL); | |
1177 | ||
1178 | if (!pd->pd_step) | |
1179 | return -ENOMEM; | |
1180 | ||
1181 | pd->pd_pwr = kcalloc(pd->pd_points, | |
1182 | sizeof(s16), GFP_KERNEL); | |
1183 | ||
1184 | if (!pd->pd_pwr) | |
1185 | return -ENOMEM; | |
1186 | ||
1187 | /* Fill raw dataset | |
1188 | * convert all pwr levels to | |
1189 | * quarter dB for RF5112 combatibility */ | |
1190 | pd->pd_step[0] = pcinfo->pddac_i[pdg]; | |
1191 | pd->pd_pwr[0] = 4 * pcinfo->pwr_i[pdg]; | |
1192 | ||
1193 | for (point = 1; point < pd->pd_points; point++) { | |
1194 | ||
1195 | pd->pd_pwr[point] = pd->pd_pwr[point - 1] + | |
1196 | 2 * pcinfo->pwr[pdg][point - 1]; | |
1197 | ||
1198 | pd->pd_step[point] = pd->pd_step[point - 1] + | |
1199 | pcinfo->pddac[pdg][point - 1]; | |
1200 | ||
1201 | } | |
1202 | ||
1203 | /* Highest gain curve -> min power */ | |
1204 | if (pdg == 0) | |
1205 | chinfo[pier].min_pwr = pd->pd_pwr[0]; | |
1206 | ||
1207 | /* Lowest gain curve -> max power */ | |
1208 | if (pdg == ee->ee_pd_gains[mode] - 1) | |
1209 | chinfo[pier].max_pwr = | |
1210 | pd->pd_pwr[pd->pd_points - 1]; | |
1211 | } | |
1212 | } | |
1213 | ||
1214 | return 0; | |
1215 | } | |
1216 | ||
1217 | /* Parse EEPROM data */ | |
1048643e FF |
1218 | static int |
1219 | ath5k_eeprom_read_pcal_info_2413(struct ath5k_hw *ah, int mode) | |
1220 | { | |
1221 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
8e218fb2 NK |
1222 | struct ath5k_chan_pcal_info_rf2413 *pcinfo; |
1223 | struct ath5k_chan_pcal_info *chinfo; | |
1224 | u8 *pdgain_idx = ee->ee_pdc_to_idx[mode]; | |
1048643e | 1225 | u32 offset; |
8e218fb2 | 1226 | int idx, i, ret; |
1048643e FF |
1227 | u16 val; |
1228 | u8 pd_gains = 0; | |
1229 | ||
8e218fb2 NK |
1230 | /* Count how many curves we have and |
1231 | * identify them (which one of the 4 | |
1232 | * available curves we have on each count). | |
1233 | * Curves are stored from higher to | |
1234 | * lower gain so we go backwards */ | |
1235 | for (idx = AR5K_EEPROM_N_PD_CURVES - 1; idx >= 0; idx--) { | |
1236 | /* ee_x_gain[mode] is x gain mask */ | |
1237 | if ((ee->ee_x_gain[mode] >> idx) & 0x1) | |
1238 | pdgain_idx[pd_gains++] = idx; | |
1239 | ||
1240 | } | |
1048643e FF |
1241 | ee->ee_pd_gains[mode] = pd_gains; |
1242 | ||
8e218fb2 NK |
1243 | if (pd_gains == 0) |
1244 | return -EINVAL; | |
1245 | ||
1048643e FF |
1246 | offset = ath5k_cal_data_offset_2413(ee, mode); |
1247 | switch (mode) { | |
1248 | case AR5K_EEPROM_MODE_11A: | |
1249 | if (!AR5K_EEPROM_HDR_11A(ee->ee_header)) | |
1250 | return 0; | |
1251 | ||
1252 | ath5k_eeprom_init_11a_pcal_freq(ah, offset); | |
1253 | offset += AR5K_EEPROM_N_5GHZ_CHAN / 2; | |
8e218fb2 | 1254 | chinfo = ee->ee_pwr_cal_a; |
1048643e FF |
1255 | break; |
1256 | case AR5K_EEPROM_MODE_11B: | |
1257 | if (!AR5K_EEPROM_HDR_11B(ee->ee_header)) | |
1258 | return 0; | |
c6e387a2 | 1259 | |
1048643e FF |
1260 | ath5k_eeprom_init_11bg_2413(ah, mode, offset); |
1261 | offset += AR5K_EEPROM_N_2GHZ_CHAN_2413 / 2; | |
8e218fb2 | 1262 | chinfo = ee->ee_pwr_cal_b; |
1048643e FF |
1263 | break; |
1264 | case AR5K_EEPROM_MODE_11G: | |
1265 | if (!AR5K_EEPROM_HDR_11G(ee->ee_header)) | |
1266 | return 0; | |
1267 | ||
1268 | ath5k_eeprom_init_11bg_2413(ah, mode, offset); | |
1269 | offset += AR5K_EEPROM_N_2GHZ_CHAN_2413 / 2; | |
8e218fb2 | 1270 | chinfo = ee->ee_pwr_cal_g; |
1048643e FF |
1271 | break; |
1272 | default: | |
1273 | return -EINVAL; | |
1274 | } | |
1275 | ||
1048643e | 1276 | for (i = 0; i < ee->ee_n_piers[mode]; i++) { |
8e218fb2 | 1277 | pcinfo = &chinfo[i].rf2413_info; |
1048643e FF |
1278 | |
1279 | /* | |
1280 | * Read pwr_i, pddac_i and the first | |
1281 | * 2 pd points (pwr, pddac) | |
1282 | */ | |
c6e387a2 | 1283 | AR5K_EEPROM_READ(offset++, val); |
8e218fb2 NK |
1284 | pcinfo->pwr_i[0] = val & 0x1f; |
1285 | pcinfo->pddac_i[0] = (val >> 5) & 0x7f; | |
1286 | pcinfo->pwr[0][0] = (val >> 12) & 0xf; | |
c6e387a2 | 1287 | |
1048643e | 1288 | AR5K_EEPROM_READ(offset++, val); |
8e218fb2 NK |
1289 | pcinfo->pddac[0][0] = val & 0x3f; |
1290 | pcinfo->pwr[0][1] = (val >> 6) & 0xf; | |
1291 | pcinfo->pddac[0][1] = (val >> 10) & 0x3f; | |
1048643e FF |
1292 | |
1293 | AR5K_EEPROM_READ(offset++, val); | |
8e218fb2 NK |
1294 | pcinfo->pwr[0][2] = val & 0xf; |
1295 | pcinfo->pddac[0][2] = (val >> 4) & 0x3f; | |
1048643e | 1296 | |
8e218fb2 NK |
1297 | pcinfo->pwr[0][3] = 0; |
1298 | pcinfo->pddac[0][3] = 0; | |
1048643e FF |
1299 | |
1300 | if (pd_gains > 1) { | |
1301 | /* | |
1302 | * Pd gain 0 is not the last pd gain | |
1303 | * so it only has 2 pd points. | |
1304 | * Continue wih pd gain 1. | |
1305 | */ | |
8e218fb2 | 1306 | pcinfo->pwr_i[1] = (val >> 10) & 0x1f; |
1048643e | 1307 | |
8e218fb2 | 1308 | pcinfo->pddac_i[1] = (val >> 15) & 0x1; |
c6e387a2 | 1309 | AR5K_EEPROM_READ(offset++, val); |
8e218fb2 | 1310 | pcinfo->pddac_i[1] |= (val & 0x3F) << 1; |
1048643e | 1311 | |
8e218fb2 NK |
1312 | pcinfo->pwr[1][0] = (val >> 6) & 0xf; |
1313 | pcinfo->pddac[1][0] = (val >> 10) & 0x3f; | |
1048643e FF |
1314 | |
1315 | AR5K_EEPROM_READ(offset++, val); | |
8e218fb2 NK |
1316 | pcinfo->pwr[1][1] = val & 0xf; |
1317 | pcinfo->pddac[1][1] = (val >> 4) & 0x3f; | |
1318 | pcinfo->pwr[1][2] = (val >> 10) & 0xf; | |
1319 | ||
1320 | pcinfo->pddac[1][2] = (val >> 14) & 0x3; | |
1048643e | 1321 | AR5K_EEPROM_READ(offset++, val); |
8e218fb2 | 1322 | pcinfo->pddac[1][2] |= (val & 0xF) << 2; |
1048643e | 1323 | |
8e218fb2 NK |
1324 | pcinfo->pwr[1][3] = 0; |
1325 | pcinfo->pddac[1][3] = 0; | |
1048643e FF |
1326 | } else if (pd_gains == 1) { |
1327 | /* | |
1328 | * Pd gain 0 is the last one so | |
1329 | * read the extra point. | |
1330 | */ | |
8e218fb2 | 1331 | pcinfo->pwr[0][3] = (val >> 10) & 0xf; |
1048643e | 1332 | |
8e218fb2 | 1333 | pcinfo->pddac[0][3] = (val >> 14) & 0x3; |
1048643e | 1334 | AR5K_EEPROM_READ(offset++, val); |
8e218fb2 | 1335 | pcinfo->pddac[0][3] |= (val & 0xF) << 2; |
1048643e FF |
1336 | } |
1337 | ||
1338 | /* | |
1339 | * Proceed with the other pd_gains | |
1340 | * as above. | |
1341 | */ | |
1342 | if (pd_gains > 2) { | |
8e218fb2 NK |
1343 | pcinfo->pwr_i[2] = (val >> 4) & 0x1f; |
1344 | pcinfo->pddac_i[2] = (val >> 9) & 0x7f; | |
1048643e FF |
1345 | |
1346 | AR5K_EEPROM_READ(offset++, val); | |
8e218fb2 NK |
1347 | pcinfo->pwr[2][0] = (val >> 0) & 0xf; |
1348 | pcinfo->pddac[2][0] = (val >> 4) & 0x3f; | |
1349 | pcinfo->pwr[2][1] = (val >> 10) & 0xf; | |
1350 | ||
1351 | pcinfo->pddac[2][1] = (val >> 14) & 0x3; | |
1048643e | 1352 | AR5K_EEPROM_READ(offset++, val); |
8e218fb2 | 1353 | pcinfo->pddac[2][1] |= (val & 0xF) << 2; |
1048643e | 1354 | |
8e218fb2 NK |
1355 | pcinfo->pwr[2][2] = (val >> 4) & 0xf; |
1356 | pcinfo->pddac[2][2] = (val >> 8) & 0x3f; | |
1048643e | 1357 | |
8e218fb2 NK |
1358 | pcinfo->pwr[2][3] = 0; |
1359 | pcinfo->pddac[2][3] = 0; | |
1048643e | 1360 | } else if (pd_gains == 2) { |
8e218fb2 NK |
1361 | pcinfo->pwr[1][3] = (val >> 4) & 0xf; |
1362 | pcinfo->pddac[1][3] = (val >> 8) & 0x3f; | |
1048643e FF |
1363 | } |
1364 | ||
1365 | if (pd_gains > 3) { | |
8e218fb2 | 1366 | pcinfo->pwr_i[3] = (val >> 14) & 0x3; |
1048643e | 1367 | AR5K_EEPROM_READ(offset++, val); |
8e218fb2 | 1368 | pcinfo->pwr_i[3] |= ((val >> 0) & 0x7) << 2; |
1048643e | 1369 | |
8e218fb2 NK |
1370 | pcinfo->pddac_i[3] = (val >> 3) & 0x7f; |
1371 | pcinfo->pwr[3][0] = (val >> 10) & 0xf; | |
1372 | pcinfo->pddac[3][0] = (val >> 14) & 0x3; | |
1048643e FF |
1373 | |
1374 | AR5K_EEPROM_READ(offset++, val); | |
8e218fb2 NK |
1375 | pcinfo->pddac[3][0] |= (val & 0xF) << 2; |
1376 | pcinfo->pwr[3][1] = (val >> 4) & 0xf; | |
1377 | pcinfo->pddac[3][1] = (val >> 8) & 0x3f; | |
1378 | ||
1379 | pcinfo->pwr[3][2] = (val >> 14) & 0x3; | |
1048643e | 1380 | AR5K_EEPROM_READ(offset++, val); |
8e218fb2 | 1381 | pcinfo->pwr[3][2] |= ((val >> 0) & 0x3) << 2; |
1048643e | 1382 | |
8e218fb2 NK |
1383 | pcinfo->pddac[3][2] = (val >> 2) & 0x3f; |
1384 | pcinfo->pwr[3][3] = (val >> 8) & 0xf; | |
1048643e | 1385 | |
8e218fb2 | 1386 | pcinfo->pddac[3][3] = (val >> 12) & 0xF; |
1048643e | 1387 | AR5K_EEPROM_READ(offset++, val); |
8e218fb2 | 1388 | pcinfo->pddac[3][3] |= ((val >> 0) & 0x3) << 4; |
1048643e | 1389 | } else if (pd_gains == 3) { |
8e218fb2 | 1390 | pcinfo->pwr[2][3] = (val >> 14) & 0x3; |
1048643e | 1391 | AR5K_EEPROM_READ(offset++, val); |
8e218fb2 | 1392 | pcinfo->pwr[2][3] |= ((val >> 0) & 0x3) << 2; |
1048643e | 1393 | |
8e218fb2 | 1394 | pcinfo->pddac[2][3] = (val >> 2) & 0x3f; |
c6e387a2 NK |
1395 | } |
1396 | } | |
1397 | ||
8e218fb2 | 1398 | return ath5k_eeprom_convert_pcal_info_2413(ah, mode, chinfo); |
1048643e FF |
1399 | } |
1400 | ||
8e218fb2 | 1401 | |
1048643e FF |
1402 | /* |
1403 | * Read per rate target power (this is the maximum tx power | |
1404 | * supported by the card). This info is used when setting | |
1405 | * tx power, no matter the channel. | |
1406 | * | |
1407 | * This also works for v5 EEPROMs. | |
1408 | */ | |
8e218fb2 NK |
1409 | static int |
1410 | ath5k_eeprom_read_target_rate_pwr_info(struct ath5k_hw *ah, unsigned int mode) | |
1048643e FF |
1411 | { |
1412 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
1413 | struct ath5k_rate_pcal_info *rate_pcal_info; | |
8e218fb2 | 1414 | u8 *rate_target_pwr_num; |
1048643e FF |
1415 | u32 offset; |
1416 | u16 val; | |
1417 | int ret, i; | |
1418 | ||
1419 | offset = AR5K_EEPROM_TARGET_PWRSTART(ee->ee_misc1); | |
1420 | rate_target_pwr_num = &ee->ee_rate_target_pwr_num[mode]; | |
1421 | switch (mode) { | |
1422 | case AR5K_EEPROM_MODE_11A: | |
1423 | offset += AR5K_EEPROM_TARGET_PWR_OFF_11A(ee->ee_version); | |
1424 | rate_pcal_info = ee->ee_rate_tpwr_a; | |
1425 | ee->ee_rate_target_pwr_num[mode] = AR5K_EEPROM_N_5GHZ_CHAN; | |
1426 | break; | |
1427 | case AR5K_EEPROM_MODE_11B: | |
1428 | offset += AR5K_EEPROM_TARGET_PWR_OFF_11B(ee->ee_version); | |
1429 | rate_pcal_info = ee->ee_rate_tpwr_b; | |
1430 | ee->ee_rate_target_pwr_num[mode] = 2; /* 3rd is g mode's 1st */ | |
1431 | break; | |
1432 | case AR5K_EEPROM_MODE_11G: | |
1433 | offset += AR5K_EEPROM_TARGET_PWR_OFF_11G(ee->ee_version); | |
1434 | rate_pcal_info = ee->ee_rate_tpwr_g; | |
1435 | ee->ee_rate_target_pwr_num[mode] = AR5K_EEPROM_N_2GHZ_CHAN; | |
1436 | break; | |
1437 | default: | |
1438 | return -EINVAL; | |
1439 | } | |
1440 | ||
1441 | /* Different freq mask for older eeproms (<= v3.2) */ | |
1442 | if (ee->ee_version <= AR5K_EEPROM_VERSION_3_2) { | |
1443 | for (i = 0; i < (*rate_target_pwr_num); i++) { | |
1444 | AR5K_EEPROM_READ(offset++, val); | |
1445 | rate_pcal_info[i].freq = | |
1446 | ath5k_eeprom_bin2freq(ee, (val >> 9) & 0x7f, mode); | |
1447 | ||
1448 | rate_pcal_info[i].target_power_6to24 = ((val >> 3) & 0x3f); | |
1449 | rate_pcal_info[i].target_power_36 = (val << 3) & 0x3f; | |
1450 | ||
1451 | AR5K_EEPROM_READ(offset++, val); | |
1452 | ||
1453 | if (rate_pcal_info[i].freq == AR5K_EEPROM_CHANNEL_DIS || | |
1454 | val == 0) { | |
1455 | (*rate_target_pwr_num) = i; | |
1456 | break; | |
1457 | } | |
1458 | ||
1459 | rate_pcal_info[i].target_power_36 |= ((val >> 13) & 0x7); | |
1460 | rate_pcal_info[i].target_power_48 = ((val >> 7) & 0x3f); | |
1461 | rate_pcal_info[i].target_power_54 = ((val >> 1) & 0x3f); | |
1462 | } | |
1463 | } else { | |
1464 | for (i = 0; i < (*rate_target_pwr_num); i++) { | |
1465 | AR5K_EEPROM_READ(offset++, val); | |
1466 | rate_pcal_info[i].freq = | |
1467 | ath5k_eeprom_bin2freq(ee, (val >> 8) & 0xff, mode); | |
1468 | ||
1469 | rate_pcal_info[i].target_power_6to24 = ((val >> 2) & 0x3f); | |
1470 | rate_pcal_info[i].target_power_36 = (val << 4) & 0x3f; | |
1471 | ||
1472 | AR5K_EEPROM_READ(offset++, val); | |
1473 | ||
1474 | if (rate_pcal_info[i].freq == AR5K_EEPROM_CHANNEL_DIS || | |
1475 | val == 0) { | |
1476 | (*rate_target_pwr_num) = i; | |
1477 | break; | |
1478 | } | |
1479 | ||
1480 | rate_pcal_info[i].target_power_36 |= (val >> 12) & 0xf; | |
1481 | rate_pcal_info[i].target_power_48 = ((val >> 6) & 0x3f); | |
1482 | rate_pcal_info[i].target_power_54 = (val & 0x3f); | |
1483 | } | |
1484 | } | |
1485 | ||
1486 | return 0; | |
1487 | } | |
1488 | ||
0ea9c00c NK |
1489 | /* |
1490 | * Read per channel calibration info from EEPROM | |
1491 | * | |
1492 | * This info is used to calibrate the baseband power table. Imagine | |
1493 | * that for each channel there is a power curve that's hw specific | |
1494 | * (depends on amplifier etc) and we try to "correct" this curve using | |
1495 | * offests we pass on to phy chip (baseband -> before amplifier) so that | |
1496 | * it can use accurate power values when setting tx power (takes amplifier's | |
1497 | * performance on each channel into account). | |
1498 | * | |
1499 | * EEPROM provides us with the offsets for some pre-calibrated channels | |
1500 | * and we have to interpolate to create the full table for these channels and | |
1501 | * also the table for any channel. | |
1502 | */ | |
1048643e FF |
1503 | static int |
1504 | ath5k_eeprom_read_pcal_info(struct ath5k_hw *ah) | |
1505 | { | |
1506 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
1507 | int (*read_pcal)(struct ath5k_hw *hw, int mode); | |
1508 | int mode; | |
1509 | int err; | |
1510 | ||
1511 | if ((ah->ah_ee_version >= AR5K_EEPROM_VERSION_4_0) && | |
1512 | (AR5K_EEPROM_EEMAP(ee->ee_misc0) == 1)) | |
1513 | read_pcal = ath5k_eeprom_read_pcal_info_5112; | |
1514 | else if ((ah->ah_ee_version >= AR5K_EEPROM_VERSION_5_0) && | |
1515 | (AR5K_EEPROM_EEMAP(ee->ee_misc0) == 2)) | |
1516 | read_pcal = ath5k_eeprom_read_pcal_info_2413; | |
1517 | else | |
1518 | read_pcal = ath5k_eeprom_read_pcal_info_5111; | |
1519 | ||
8e218fb2 NK |
1520 | |
1521 | for (mode = AR5K_EEPROM_MODE_11A; mode <= AR5K_EEPROM_MODE_11G; | |
1522 | mode++) { | |
1048643e FF |
1523 | err = read_pcal(ah, mode); |
1524 | if (err) | |
1525 | return err; | |
1526 | ||
1527 | err = ath5k_eeprom_read_target_rate_pwr_info(ah, mode); | |
1528 | if (err < 0) | |
1529 | return err; | |
1530 | } | |
1531 | ||
1532 | return 0; | |
1533 | } | |
1534 | ||
8e218fb2 NK |
1535 | static int |
1536 | ath5k_eeprom_free_pcal_info(struct ath5k_hw *ah, int mode) | |
1537 | { | |
1538 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
1539 | struct ath5k_chan_pcal_info *chinfo; | |
1540 | u8 pier, pdg; | |
1541 | ||
1542 | switch (mode) { | |
1543 | case AR5K_EEPROM_MODE_11A: | |
1544 | if (!AR5K_EEPROM_HDR_11A(ee->ee_header)) | |
1545 | return 0; | |
1546 | chinfo = ee->ee_pwr_cal_a; | |
1547 | break; | |
1548 | case AR5K_EEPROM_MODE_11B: | |
1549 | if (!AR5K_EEPROM_HDR_11B(ee->ee_header)) | |
1550 | return 0; | |
1551 | chinfo = ee->ee_pwr_cal_b; | |
1552 | break; | |
1553 | case AR5K_EEPROM_MODE_11G: | |
1554 | if (!AR5K_EEPROM_HDR_11G(ee->ee_header)) | |
1555 | return 0; | |
1556 | chinfo = ee->ee_pwr_cal_g; | |
1557 | break; | |
1558 | default: | |
1559 | return -EINVAL; | |
1560 | } | |
1561 | ||
1562 | for (pier = 0; pier < ee->ee_n_piers[mode]; pier++) { | |
1563 | if (!chinfo[pier].pd_curves) | |
1564 | continue; | |
1565 | ||
1566 | for (pdg = 0; pdg < ee->ee_pd_gains[mode]; pdg++) { | |
1567 | struct ath5k_pdgain_info *pd = | |
1568 | &chinfo[pier].pd_curves[pdg]; | |
1569 | ||
1570 | if (pd != NULL) { | |
1571 | kfree(pd->pd_step); | |
1572 | kfree(pd->pd_pwr); | |
1573 | } | |
1574 | } | |
1575 | ||
1576 | kfree(chinfo[pier].pd_curves); | |
1577 | } | |
1578 | ||
1579 | return 0; | |
1580 | } | |
1581 | ||
1582 | void | |
1583 | ath5k_eeprom_detach(struct ath5k_hw *ah) | |
1584 | { | |
1585 | u8 mode; | |
1586 | ||
1587 | for (mode = AR5K_EEPROM_MODE_11A; mode <= AR5K_EEPROM_MODE_11G; mode++) | |
1588 | ath5k_eeprom_free_pcal_info(ah, mode); | |
1589 | } | |
1590 | ||
0ea9c00c | 1591 | /* Read conformance test limits used for regulatory control */ |
1048643e FF |
1592 | static int |
1593 | ath5k_eeprom_read_ctl_info(struct ath5k_hw *ah) | |
1594 | { | |
1595 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
1596 | struct ath5k_edge_power *rep; | |
1597 | unsigned int fmask, pmask; | |
1598 | unsigned int ctl_mode; | |
1599 | int ret, i, j; | |
1600 | u32 offset; | |
1601 | u16 val; | |
1602 | ||
1603 | pmask = AR5K_EEPROM_POWER_M; | |
1604 | fmask = AR5K_EEPROM_FREQ_M(ee->ee_version); | |
1605 | offset = AR5K_EEPROM_CTL(ee->ee_version); | |
1606 | ee->ee_ctls = AR5K_EEPROM_N_CTLS(ee->ee_version); | |
1607 | for (i = 0; i < ee->ee_ctls; i += 2) { | |
1608 | AR5K_EEPROM_READ(offset++, val); | |
1609 | ee->ee_ctl[i] = (val >> 8) & 0xff; | |
1610 | ee->ee_ctl[i + 1] = val & 0xff; | |
1611 | } | |
1612 | ||
1613 | offset = AR5K_EEPROM_GROUP8_OFFSET; | |
1614 | if (ee->ee_version >= AR5K_EEPROM_VERSION_4_0) | |
1615 | offset += AR5K_EEPROM_TARGET_PWRSTART(ee->ee_misc1) - | |
1616 | AR5K_EEPROM_GROUP5_OFFSET; | |
1617 | else | |
1618 | offset += AR5K_EEPROM_GROUPS_START(ee->ee_version); | |
1619 | ||
1620 | rep = ee->ee_ctl_pwr; | |
1621 | for(i = 0; i < ee->ee_ctls; i++) { | |
1622 | switch(ee->ee_ctl[i] & AR5K_CTL_MODE_M) { | |
1623 | case AR5K_CTL_11A: | |
1624 | case AR5K_CTL_TURBO: | |
1625 | ctl_mode = AR5K_EEPROM_MODE_11A; | |
1626 | break; | |
1627 | default: | |
1628 | ctl_mode = AR5K_EEPROM_MODE_11G; | |
1629 | break; | |
1630 | } | |
1631 | if (ee->ee_ctl[i] == 0) { | |
1632 | if (ee->ee_version >= AR5K_EEPROM_VERSION_3_3) | |
1633 | offset += 8; | |
1634 | else | |
1635 | offset += 7; | |
1636 | rep += AR5K_EEPROM_N_EDGES; | |
1637 | continue; | |
1638 | } | |
1639 | if (ee->ee_version >= AR5K_EEPROM_VERSION_3_3) { | |
1640 | for (j = 0; j < AR5K_EEPROM_N_EDGES; j += 2) { | |
1641 | AR5K_EEPROM_READ(offset++, val); | |
1642 | rep[j].freq = (val >> 8) & fmask; | |
1643 | rep[j + 1].freq = val & fmask; | |
1644 | } | |
1645 | for (j = 0; j < AR5K_EEPROM_N_EDGES; j += 2) { | |
1646 | AR5K_EEPROM_READ(offset++, val); | |
1647 | rep[j].edge = (val >> 8) & pmask; | |
1648 | rep[j].flag = (val >> 14) & 1; | |
1649 | rep[j + 1].edge = val & pmask; | |
1650 | rep[j + 1].flag = (val >> 6) & 1; | |
1651 | } | |
1652 | } else { | |
1653 | AR5K_EEPROM_READ(offset++, val); | |
1654 | rep[0].freq = (val >> 9) & fmask; | |
1655 | rep[1].freq = (val >> 2) & fmask; | |
1656 | rep[2].freq = (val << 5) & fmask; | |
1657 | ||
1658 | AR5K_EEPROM_READ(offset++, val); | |
1659 | rep[2].freq |= (val >> 11) & 0x1f; | |
1660 | rep[3].freq = (val >> 4) & fmask; | |
1661 | rep[4].freq = (val << 3) & fmask; | |
1662 | ||
1663 | AR5K_EEPROM_READ(offset++, val); | |
1664 | rep[4].freq |= (val >> 13) & 0x7; | |
1665 | rep[5].freq = (val >> 6) & fmask; | |
1666 | rep[6].freq = (val << 1) & fmask; | |
1667 | ||
1668 | AR5K_EEPROM_READ(offset++, val); | |
1669 | rep[6].freq |= (val >> 15) & 0x1; | |
1670 | rep[7].freq = (val >> 8) & fmask; | |
1671 | ||
1672 | rep[0].edge = (val >> 2) & pmask; | |
1673 | rep[1].edge = (val << 4) & pmask; | |
1674 | ||
1675 | AR5K_EEPROM_READ(offset++, val); | |
1676 | rep[1].edge |= (val >> 12) & 0xf; | |
1677 | rep[2].edge = (val >> 6) & pmask; | |
1678 | rep[3].edge = val & pmask; | |
1679 | ||
1680 | AR5K_EEPROM_READ(offset++, val); | |
1681 | rep[4].edge = (val >> 10) & pmask; | |
1682 | rep[5].edge = (val >> 4) & pmask; | |
1683 | rep[6].edge = (val << 2) & pmask; | |
1684 | ||
1685 | AR5K_EEPROM_READ(offset++, val); | |
1686 | rep[6].edge |= (val >> 14) & 0x3; | |
1687 | rep[7].edge = (val >> 8) & pmask; | |
1688 | } | |
1689 | for (j = 0; j < AR5K_EEPROM_N_EDGES; j++) { | |
1690 | rep[j].freq = ath5k_eeprom_bin2freq(ee, | |
1691 | rep[j].freq, ctl_mode); | |
1692 | } | |
1693 | rep += AR5K_EEPROM_N_EDGES; | |
1694 | } | |
c6e387a2 NK |
1695 | |
1696 | return 0; | |
1697 | } | |
1698 | ||
cd417519 NK |
1699 | static int |
1700 | ath5k_eeprom_read_spur_chans(struct ath5k_hw *ah) | |
1701 | { | |
1702 | struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom; | |
1703 | u32 offset; | |
1704 | u16 val; | |
1705 | int ret = 0, i; | |
1706 | ||
1707 | offset = AR5K_EEPROM_CTL(ee->ee_version) + | |
1708 | AR5K_EEPROM_N_CTLS(ee->ee_version); | |
1709 | ||
1710 | if (ee->ee_version < AR5K_EEPROM_VERSION_5_3) { | |
1711 | /* No spur info for 5GHz */ | |
1712 | ee->ee_spur_chans[0][0] = AR5K_EEPROM_NO_SPUR; | |
1713 | /* 2 channels for 2GHz (2464/2420) */ | |
1714 | ee->ee_spur_chans[0][1] = AR5K_EEPROM_5413_SPUR_CHAN_1; | |
1715 | ee->ee_spur_chans[1][1] = AR5K_EEPROM_5413_SPUR_CHAN_2; | |
1716 | ee->ee_spur_chans[2][1] = AR5K_EEPROM_NO_SPUR; | |
1717 | } else if (ee->ee_version >= AR5K_EEPROM_VERSION_5_3) { | |
1718 | for (i = 0; i < AR5K_EEPROM_N_SPUR_CHANS; i++) { | |
1719 | AR5K_EEPROM_READ(offset, val); | |
1720 | ee->ee_spur_chans[i][0] = val; | |
1721 | AR5K_EEPROM_READ(offset + AR5K_EEPROM_N_SPUR_CHANS, | |
1722 | val); | |
1723 | ee->ee_spur_chans[i][1] = val; | |
1724 | offset++; | |
1725 | } | |
1726 | } | |
1727 | ||
1728 | return ret; | |
1729 | } | |
1048643e FF |
1730 | |
1731 | /* | |
cd417519 | 1732 | * Initialize eeprom data structure |
1048643e FF |
1733 | */ |
1734 | int | |
1735 | ath5k_eeprom_init(struct ath5k_hw *ah) | |
1736 | { | |
1737 | int err; | |
1738 | ||
1739 | err = ath5k_eeprom_init_header(ah); | |
1740 | if (err < 0) | |
1741 | return err; | |
1742 | ||
1743 | err = ath5k_eeprom_init_modes(ah); | |
1744 | if (err < 0) | |
1745 | return err; | |
1746 | ||
1747 | err = ath5k_eeprom_read_pcal_info(ah); | |
1748 | if (err < 0) | |
1749 | return err; | |
1750 | ||
1751 | err = ath5k_eeprom_read_ctl_info(ah); | |
1752 | if (err < 0) | |
1753 | return err; | |
1754 | ||
cd417519 NK |
1755 | err = ath5k_eeprom_read_spur_chans(ah); |
1756 | if (err < 0) | |
1757 | return err; | |
1758 | ||
1048643e FF |
1759 | return 0; |
1760 | } | |
e8f055f0 | 1761 | |
c6e387a2 NK |
1762 | /* |
1763 | * Read the MAC address from eeprom | |
1764 | */ | |
1765 | int ath5k_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac) | |
1766 | { | |
8d6c39ef | 1767 | u8 mac_d[ETH_ALEN] = {}; |
c6e387a2 NK |
1768 | u32 total, offset; |
1769 | u16 data; | |
1770 | int octet, ret; | |
1771 | ||
c6e387a2 NK |
1772 | ret = ath5k_hw_eeprom_read(ah, 0x20, &data); |
1773 | if (ret) | |
1774 | return ret; | |
1775 | ||
1776 | for (offset = 0x1f, octet = 0, total = 0; offset >= 0x1d; offset--) { | |
1777 | ret = ath5k_hw_eeprom_read(ah, offset, &data); | |
1778 | if (ret) | |
1779 | return ret; | |
1780 | ||
1781 | total += data; | |
1782 | mac_d[octet + 1] = data & 0xff; | |
1783 | mac_d[octet] = data >> 8; | |
1784 | octet += 2; | |
1785 | } | |
1786 | ||
c6e387a2 NK |
1787 | if (!total || total == 3 * 0xffff) |
1788 | return -EINVAL; | |
1789 | ||
8d6c39ef JS |
1790 | memcpy(mac, mac_d, ETH_ALEN); |
1791 | ||
c6e387a2 NK |
1792 | return 0; |
1793 | } |