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95ea3627 ID |
1 | /* |
2 | Copyright (C) 2004 - 2007 rt2x00 SourceForge Project | |
3 | <http://rt2x00.serialmonkey.com> | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 2 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program; if not, write to the | |
17 | Free Software Foundation, Inc., | |
18 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
19 | */ | |
20 | ||
21 | /* | |
22 | Module: rt2400pci | |
23 | Abstract: rt2400pci device specific routines. | |
24 | Supported chipsets: RT2460. | |
25 | */ | |
26 | ||
27 | /* | |
28 | * Set enviroment defines for rt2x00.h | |
29 | */ | |
30 | #define DRV_NAME "rt2400pci" | |
31 | ||
32 | #include <linux/delay.h> | |
33 | #include <linux/etherdevice.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/kernel.h> | |
36 | #include <linux/module.h> | |
37 | #include <linux/pci.h> | |
38 | #include <linux/eeprom_93cx6.h> | |
39 | ||
40 | #include "rt2x00.h" | |
41 | #include "rt2x00pci.h" | |
42 | #include "rt2400pci.h" | |
43 | ||
44 | /* | |
45 | * Register access. | |
46 | * All access to the CSR registers will go through the methods | |
47 | * rt2x00pci_register_read and rt2x00pci_register_write. | |
48 | * BBP and RF register require indirect register access, | |
49 | * and use the CSR registers BBPCSR and RFCSR to achieve this. | |
50 | * These indirect registers work with busy bits, | |
51 | * and we will try maximal REGISTER_BUSY_COUNT times to access | |
52 | * the register while taking a REGISTER_BUSY_DELAY us delay | |
53 | * between each attampt. When the busy bit is still set at that time, | |
54 | * the access attempt is considered to have failed, | |
55 | * and we will print an error. | |
56 | */ | |
0e14f6d3 | 57 | static u32 rt2400pci_bbp_check(struct rt2x00_dev *rt2x00dev) |
95ea3627 ID |
58 | { |
59 | u32 reg; | |
60 | unsigned int i; | |
61 | ||
62 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { | |
63 | rt2x00pci_register_read(rt2x00dev, BBPCSR, ®); | |
64 | if (!rt2x00_get_field32(reg, BBPCSR_BUSY)) | |
65 | break; | |
66 | udelay(REGISTER_BUSY_DELAY); | |
67 | } | |
68 | ||
69 | return reg; | |
70 | } | |
71 | ||
0e14f6d3 | 72 | static void rt2400pci_bbp_write(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
73 | const unsigned int word, const u8 value) |
74 | { | |
75 | u32 reg; | |
76 | ||
77 | /* | |
78 | * Wait until the BBP becomes ready. | |
79 | */ | |
80 | reg = rt2400pci_bbp_check(rt2x00dev); | |
81 | if (rt2x00_get_field32(reg, BBPCSR_BUSY)) { | |
82 | ERROR(rt2x00dev, "BBPCSR register busy. Write failed.\n"); | |
83 | return; | |
84 | } | |
85 | ||
86 | /* | |
87 | * Write the data into the BBP. | |
88 | */ | |
89 | reg = 0; | |
90 | rt2x00_set_field32(®, BBPCSR_VALUE, value); | |
91 | rt2x00_set_field32(®, BBPCSR_REGNUM, word); | |
92 | rt2x00_set_field32(®, BBPCSR_BUSY, 1); | |
93 | rt2x00_set_field32(®, BBPCSR_WRITE_CONTROL, 1); | |
94 | ||
95 | rt2x00pci_register_write(rt2x00dev, BBPCSR, reg); | |
96 | } | |
97 | ||
0e14f6d3 | 98 | static void rt2400pci_bbp_read(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
99 | const unsigned int word, u8 *value) |
100 | { | |
101 | u32 reg; | |
102 | ||
103 | /* | |
104 | * Wait until the BBP becomes ready. | |
105 | */ | |
106 | reg = rt2400pci_bbp_check(rt2x00dev); | |
107 | if (rt2x00_get_field32(reg, BBPCSR_BUSY)) { | |
108 | ERROR(rt2x00dev, "BBPCSR register busy. Read failed.\n"); | |
109 | return; | |
110 | } | |
111 | ||
112 | /* | |
113 | * Write the request into the BBP. | |
114 | */ | |
115 | reg = 0; | |
116 | rt2x00_set_field32(®, BBPCSR_REGNUM, word); | |
117 | rt2x00_set_field32(®, BBPCSR_BUSY, 1); | |
118 | rt2x00_set_field32(®, BBPCSR_WRITE_CONTROL, 0); | |
119 | ||
120 | rt2x00pci_register_write(rt2x00dev, BBPCSR, reg); | |
121 | ||
122 | /* | |
123 | * Wait until the BBP becomes ready. | |
124 | */ | |
125 | reg = rt2400pci_bbp_check(rt2x00dev); | |
126 | if (rt2x00_get_field32(reg, BBPCSR_BUSY)) { | |
127 | ERROR(rt2x00dev, "BBPCSR register busy. Read failed.\n"); | |
128 | *value = 0xff; | |
129 | return; | |
130 | } | |
131 | ||
132 | *value = rt2x00_get_field32(reg, BBPCSR_VALUE); | |
133 | } | |
134 | ||
0e14f6d3 | 135 | static void rt2400pci_rf_write(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
136 | const unsigned int word, const u32 value) |
137 | { | |
138 | u32 reg; | |
139 | unsigned int i; | |
140 | ||
141 | if (!word) | |
142 | return; | |
143 | ||
144 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { | |
145 | rt2x00pci_register_read(rt2x00dev, RFCSR, ®); | |
146 | if (!rt2x00_get_field32(reg, RFCSR_BUSY)) | |
147 | goto rf_write; | |
148 | udelay(REGISTER_BUSY_DELAY); | |
149 | } | |
150 | ||
151 | ERROR(rt2x00dev, "RFCSR register busy. Write failed.\n"); | |
152 | return; | |
153 | ||
154 | rf_write: | |
155 | reg = 0; | |
156 | rt2x00_set_field32(®, RFCSR_VALUE, value); | |
157 | rt2x00_set_field32(®, RFCSR_NUMBER_OF_BITS, 20); | |
158 | rt2x00_set_field32(®, RFCSR_IF_SELECT, 0); | |
159 | rt2x00_set_field32(®, RFCSR_BUSY, 1); | |
160 | ||
161 | rt2x00pci_register_write(rt2x00dev, RFCSR, reg); | |
162 | rt2x00_rf_write(rt2x00dev, word, value); | |
163 | } | |
164 | ||
165 | static void rt2400pci_eepromregister_read(struct eeprom_93cx6 *eeprom) | |
166 | { | |
167 | struct rt2x00_dev *rt2x00dev = eeprom->data; | |
168 | u32 reg; | |
169 | ||
170 | rt2x00pci_register_read(rt2x00dev, CSR21, ®); | |
171 | ||
172 | eeprom->reg_data_in = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_IN); | |
173 | eeprom->reg_data_out = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_OUT); | |
174 | eeprom->reg_data_clock = | |
175 | !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_CLOCK); | |
176 | eeprom->reg_chip_select = | |
177 | !!rt2x00_get_field32(reg, CSR21_EEPROM_CHIP_SELECT); | |
178 | } | |
179 | ||
180 | static void rt2400pci_eepromregister_write(struct eeprom_93cx6 *eeprom) | |
181 | { | |
182 | struct rt2x00_dev *rt2x00dev = eeprom->data; | |
183 | u32 reg = 0; | |
184 | ||
185 | rt2x00_set_field32(®, CSR21_EEPROM_DATA_IN, !!eeprom->reg_data_in); | |
186 | rt2x00_set_field32(®, CSR21_EEPROM_DATA_OUT, !!eeprom->reg_data_out); | |
187 | rt2x00_set_field32(®, CSR21_EEPROM_DATA_CLOCK, | |
188 | !!eeprom->reg_data_clock); | |
189 | rt2x00_set_field32(®, CSR21_EEPROM_CHIP_SELECT, | |
190 | !!eeprom->reg_chip_select); | |
191 | ||
192 | rt2x00pci_register_write(rt2x00dev, CSR21, reg); | |
193 | } | |
194 | ||
195 | #ifdef CONFIG_RT2X00_LIB_DEBUGFS | |
196 | #define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u32)) ) | |
197 | ||
0e14f6d3 | 198 | static void rt2400pci_read_csr(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
199 | const unsigned int word, u32 *data) |
200 | { | |
201 | rt2x00pci_register_read(rt2x00dev, CSR_OFFSET(word), data); | |
202 | } | |
203 | ||
0e14f6d3 | 204 | static void rt2400pci_write_csr(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
205 | const unsigned int word, u32 data) |
206 | { | |
207 | rt2x00pci_register_write(rt2x00dev, CSR_OFFSET(word), data); | |
208 | } | |
209 | ||
210 | static const struct rt2x00debug rt2400pci_rt2x00debug = { | |
211 | .owner = THIS_MODULE, | |
212 | .csr = { | |
213 | .read = rt2400pci_read_csr, | |
214 | .write = rt2400pci_write_csr, | |
215 | .word_size = sizeof(u32), | |
216 | .word_count = CSR_REG_SIZE / sizeof(u32), | |
217 | }, | |
218 | .eeprom = { | |
219 | .read = rt2x00_eeprom_read, | |
220 | .write = rt2x00_eeprom_write, | |
221 | .word_size = sizeof(u16), | |
222 | .word_count = EEPROM_SIZE / sizeof(u16), | |
223 | }, | |
224 | .bbp = { | |
225 | .read = rt2400pci_bbp_read, | |
226 | .write = rt2400pci_bbp_write, | |
227 | .word_size = sizeof(u8), | |
228 | .word_count = BBP_SIZE / sizeof(u8), | |
229 | }, | |
230 | .rf = { | |
231 | .read = rt2x00_rf_read, | |
232 | .write = rt2400pci_rf_write, | |
233 | .word_size = sizeof(u32), | |
234 | .word_count = RF_SIZE / sizeof(u32), | |
235 | }, | |
236 | }; | |
237 | #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ | |
238 | ||
239 | #ifdef CONFIG_RT2400PCI_RFKILL | |
240 | static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) | |
241 | { | |
242 | u32 reg; | |
243 | ||
244 | rt2x00pci_register_read(rt2x00dev, GPIOCSR, ®); | |
245 | return rt2x00_get_field32(reg, GPIOCSR_BIT0); | |
246 | } | |
81873e9c ID |
247 | #else |
248 | #define rt2400pci_rfkill_poll NULL | |
95ea3627 ID |
249 | #endif /* CONFIG_RT2400PCI_RFKILL */ |
250 | ||
251 | /* | |
252 | * Configuration handlers. | |
253 | */ | |
4abee4bb ID |
254 | static void rt2400pci_config_mac_addr(struct rt2x00_dev *rt2x00dev, |
255 | __le32 *mac) | |
95ea3627 | 256 | { |
4abee4bb ID |
257 | rt2x00pci_register_multiwrite(rt2x00dev, CSR3, mac, |
258 | (2 * sizeof(__le32))); | |
95ea3627 ID |
259 | } |
260 | ||
4abee4bb ID |
261 | static void rt2400pci_config_bssid(struct rt2x00_dev *rt2x00dev, |
262 | __le32 *bssid) | |
95ea3627 | 263 | { |
4abee4bb ID |
264 | rt2x00pci_register_multiwrite(rt2x00dev, CSR5, bssid, |
265 | (2 * sizeof(__le32))); | |
95ea3627 ID |
266 | } |
267 | ||
feb24691 ID |
268 | static void rt2400pci_config_type(struct rt2x00_dev *rt2x00dev, const int type, |
269 | const int tsf_sync) | |
95ea3627 ID |
270 | { |
271 | u32 reg; | |
272 | ||
273 | rt2x00pci_register_write(rt2x00dev, CSR14, 0); | |
274 | ||
95ea3627 ID |
275 | /* |
276 | * Enable beacon config | |
277 | */ | |
278 | rt2x00pci_register_read(rt2x00dev, BCNCSR1, ®); | |
279 | rt2x00_set_field32(®, BCNCSR1_PRELOAD, | |
a137e202 | 280 | PREAMBLE + get_duration(IEEE80211_HEADER, 20)); |
95ea3627 ID |
281 | rt2x00pci_register_write(rt2x00dev, BCNCSR1, reg); |
282 | ||
283 | /* | |
284 | * Enable synchronisation. | |
285 | */ | |
286 | rt2x00pci_register_read(rt2x00dev, CSR14, ®); | |
4150c572 JB |
287 | rt2x00_set_field32(®, CSR14_TSF_COUNT, 1); |
288 | rt2x00_set_field32(®, CSR14_TBCN, 1); | |
95ea3627 | 289 | rt2x00_set_field32(®, CSR14_BEACON_GEN, 0); |
feb24691 | 290 | rt2x00_set_field32(®, CSR14_TSF_SYNC, tsf_sync); |
95ea3627 ID |
291 | rt2x00pci_register_write(rt2x00dev, CSR14, reg); |
292 | } | |
293 | ||
5c58ee51 ID |
294 | static void rt2400pci_config_preamble(struct rt2x00_dev *rt2x00dev, |
295 | const int short_preamble, | |
296 | const int ack_timeout, | |
297 | const int ack_consume_time) | |
95ea3627 | 298 | { |
5c58ee51 | 299 | int preamble_mask; |
95ea3627 | 300 | u32 reg; |
95ea3627 | 301 | |
5c58ee51 ID |
302 | /* |
303 | * When short preamble is enabled, we should set bit 0x08 | |
304 | */ | |
305 | preamble_mask = short_preamble << 3; | |
95ea3627 ID |
306 | |
307 | rt2x00pci_register_read(rt2x00dev, TXCSR1, ®); | |
5c58ee51 ID |
308 | rt2x00_set_field32(®, TXCSR1_ACK_TIMEOUT, ack_timeout); |
309 | rt2x00_set_field32(®, TXCSR1_ACK_CONSUME_TIME, ack_consume_time); | |
95ea3627 ID |
310 | rt2x00pci_register_write(rt2x00dev, TXCSR1, reg); |
311 | ||
95ea3627 | 312 | rt2x00pci_register_read(rt2x00dev, ARCSR2, ®); |
5c58ee51 | 313 | rt2x00_set_field32(®, ARCSR2_SIGNAL, 0x00 | preamble_mask); |
95ea3627 ID |
314 | rt2x00_set_field32(®, ARCSR2_SERVICE, 0x04); |
315 | rt2x00_set_field32(®, ARCSR2_LENGTH, get_duration(ACK_SIZE, 10)); | |
316 | rt2x00pci_register_write(rt2x00dev, ARCSR2, reg); | |
317 | ||
318 | rt2x00pci_register_read(rt2x00dev, ARCSR3, ®); | |
5c58ee51 | 319 | rt2x00_set_field32(®, ARCSR3_SIGNAL, 0x01 | preamble_mask); |
95ea3627 ID |
320 | rt2x00_set_field32(®, ARCSR3_SERVICE, 0x04); |
321 | rt2x00_set_field32(®, ARCSR2_LENGTH, get_duration(ACK_SIZE, 20)); | |
322 | rt2x00pci_register_write(rt2x00dev, ARCSR3, reg); | |
323 | ||
324 | rt2x00pci_register_read(rt2x00dev, ARCSR4, ®); | |
5c58ee51 | 325 | rt2x00_set_field32(®, ARCSR4_SIGNAL, 0x02 | preamble_mask); |
95ea3627 ID |
326 | rt2x00_set_field32(®, ARCSR4_SERVICE, 0x04); |
327 | rt2x00_set_field32(®, ARCSR2_LENGTH, get_duration(ACK_SIZE, 55)); | |
328 | rt2x00pci_register_write(rt2x00dev, ARCSR4, reg); | |
329 | ||
330 | rt2x00pci_register_read(rt2x00dev, ARCSR5, ®); | |
5c58ee51 | 331 | rt2x00_set_field32(®, ARCSR5_SIGNAL, 0x03 | preamble_mask); |
95ea3627 ID |
332 | rt2x00_set_field32(®, ARCSR5_SERVICE, 0x84); |
333 | rt2x00_set_field32(®, ARCSR2_LENGTH, get_duration(ACK_SIZE, 110)); | |
334 | rt2x00pci_register_write(rt2x00dev, ARCSR5, reg); | |
335 | } | |
336 | ||
337 | static void rt2400pci_config_phymode(struct rt2x00_dev *rt2x00dev, | |
5c58ee51 | 338 | const int basic_rate_mask) |
95ea3627 | 339 | { |
5c58ee51 | 340 | rt2x00pci_register_write(rt2x00dev, ARCSR1, basic_rate_mask); |
95ea3627 ID |
341 | } |
342 | ||
343 | static void rt2400pci_config_channel(struct rt2x00_dev *rt2x00dev, | |
5c58ee51 | 344 | struct rf_channel *rf) |
95ea3627 | 345 | { |
95ea3627 ID |
346 | /* |
347 | * Switch on tuning bits. | |
348 | */ | |
5c58ee51 ID |
349 | rt2x00_set_field32(&rf->rf1, RF1_TUNER, 1); |
350 | rt2x00_set_field32(&rf->rf3, RF3_TUNER, 1); | |
95ea3627 | 351 | |
5c58ee51 ID |
352 | rt2400pci_rf_write(rt2x00dev, 1, rf->rf1); |
353 | rt2400pci_rf_write(rt2x00dev, 2, rf->rf2); | |
354 | rt2400pci_rf_write(rt2x00dev, 3, rf->rf3); | |
95ea3627 ID |
355 | |
356 | /* | |
357 | * RF2420 chipset don't need any additional actions. | |
358 | */ | |
359 | if (rt2x00_rf(&rt2x00dev->chip, RF2420)) | |
360 | return; | |
361 | ||
362 | /* | |
363 | * For the RT2421 chipsets we need to write an invalid | |
364 | * reference clock rate to activate auto_tune. | |
365 | * After that we set the value back to the correct channel. | |
366 | */ | |
5c58ee51 | 367 | rt2400pci_rf_write(rt2x00dev, 1, rf->rf1); |
95ea3627 | 368 | rt2400pci_rf_write(rt2x00dev, 2, 0x000c2a32); |
5c58ee51 | 369 | rt2400pci_rf_write(rt2x00dev, 3, rf->rf3); |
95ea3627 ID |
370 | |
371 | msleep(1); | |
372 | ||
5c58ee51 ID |
373 | rt2400pci_rf_write(rt2x00dev, 1, rf->rf1); |
374 | rt2400pci_rf_write(rt2x00dev, 2, rf->rf2); | |
375 | rt2400pci_rf_write(rt2x00dev, 3, rf->rf3); | |
95ea3627 ID |
376 | |
377 | msleep(1); | |
378 | ||
379 | /* | |
380 | * Switch off tuning bits. | |
381 | */ | |
5c58ee51 ID |
382 | rt2x00_set_field32(&rf->rf1, RF1_TUNER, 0); |
383 | rt2x00_set_field32(&rf->rf3, RF3_TUNER, 0); | |
95ea3627 | 384 | |
5c58ee51 ID |
385 | rt2400pci_rf_write(rt2x00dev, 1, rf->rf1); |
386 | rt2400pci_rf_write(rt2x00dev, 3, rf->rf3); | |
95ea3627 ID |
387 | |
388 | /* | |
389 | * Clear false CRC during channel switch. | |
390 | */ | |
5c58ee51 | 391 | rt2x00pci_register_read(rt2x00dev, CNT0, &rf->rf1); |
95ea3627 ID |
392 | } |
393 | ||
394 | static void rt2400pci_config_txpower(struct rt2x00_dev *rt2x00dev, int txpower) | |
395 | { | |
396 | rt2400pci_bbp_write(rt2x00dev, 3, TXPOWER_TO_DEV(txpower)); | |
397 | } | |
398 | ||
399 | static void rt2400pci_config_antenna(struct rt2x00_dev *rt2x00dev, | |
addc81bd | 400 | struct antenna_setup *ant) |
95ea3627 ID |
401 | { |
402 | u8 r1; | |
403 | u8 r4; | |
404 | ||
405 | rt2400pci_bbp_read(rt2x00dev, 4, &r4); | |
406 | rt2400pci_bbp_read(rt2x00dev, 1, &r1); | |
407 | ||
408 | /* | |
409 | * Configure the TX antenna. | |
410 | */ | |
addc81bd | 411 | switch (ant->tx) { |
95ea3627 ID |
412 | case ANTENNA_HW_DIVERSITY: |
413 | rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 1); | |
414 | break; | |
415 | case ANTENNA_A: | |
416 | rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 0); | |
417 | break; | |
39e75857 ID |
418 | case ANTENNA_SW_DIVERSITY: |
419 | /* | |
420 | * NOTE: We should never come here because rt2x00lib is | |
421 | * supposed to catch this and send us the correct antenna | |
422 | * explicitely. However we are nog going to bug about this. | |
423 | * Instead, just default to antenna B. | |
424 | */ | |
95ea3627 ID |
425 | case ANTENNA_B: |
426 | rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 2); | |
427 | break; | |
428 | } | |
429 | ||
430 | /* | |
431 | * Configure the RX antenna. | |
432 | */ | |
addc81bd | 433 | switch (ant->rx) { |
95ea3627 ID |
434 | case ANTENNA_HW_DIVERSITY: |
435 | rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1); | |
436 | break; | |
437 | case ANTENNA_A: | |
438 | rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 0); | |
439 | break; | |
39e75857 ID |
440 | case ANTENNA_SW_DIVERSITY: |
441 | /* | |
442 | * NOTE: We should never come here because rt2x00lib is | |
443 | * supposed to catch this and send us the correct antenna | |
444 | * explicitely. However we are nog going to bug about this. | |
445 | * Instead, just default to antenna B. | |
446 | */ | |
95ea3627 ID |
447 | case ANTENNA_B: |
448 | rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2); | |
449 | break; | |
450 | } | |
451 | ||
452 | rt2400pci_bbp_write(rt2x00dev, 4, r4); | |
453 | rt2400pci_bbp_write(rt2x00dev, 1, r1); | |
454 | } | |
455 | ||
456 | static void rt2400pci_config_duration(struct rt2x00_dev *rt2x00dev, | |
5c58ee51 | 457 | struct rt2x00lib_conf *libconf) |
95ea3627 ID |
458 | { |
459 | u32 reg; | |
460 | ||
461 | rt2x00pci_register_read(rt2x00dev, CSR11, ®); | |
5c58ee51 | 462 | rt2x00_set_field32(®, CSR11_SLOT_TIME, libconf->slot_time); |
95ea3627 ID |
463 | rt2x00pci_register_write(rt2x00dev, CSR11, reg); |
464 | ||
465 | rt2x00pci_register_read(rt2x00dev, CSR18, ®); | |
5c58ee51 ID |
466 | rt2x00_set_field32(®, CSR18_SIFS, libconf->sifs); |
467 | rt2x00_set_field32(®, CSR18_PIFS, libconf->pifs); | |
95ea3627 ID |
468 | rt2x00pci_register_write(rt2x00dev, CSR18, reg); |
469 | ||
470 | rt2x00pci_register_read(rt2x00dev, CSR19, ®); | |
5c58ee51 ID |
471 | rt2x00_set_field32(®, CSR19_DIFS, libconf->difs); |
472 | rt2x00_set_field32(®, CSR19_EIFS, libconf->eifs); | |
95ea3627 ID |
473 | rt2x00pci_register_write(rt2x00dev, CSR19, reg); |
474 | ||
475 | rt2x00pci_register_read(rt2x00dev, TXCSR1, ®); | |
476 | rt2x00_set_field32(®, TXCSR1_TSF_OFFSET, IEEE80211_HEADER); | |
477 | rt2x00_set_field32(®, TXCSR1_AUTORESPONDER, 1); | |
478 | rt2x00pci_register_write(rt2x00dev, TXCSR1, reg); | |
479 | ||
480 | rt2x00pci_register_read(rt2x00dev, CSR12, ®); | |
5c58ee51 ID |
481 | rt2x00_set_field32(®, CSR12_BEACON_INTERVAL, |
482 | libconf->conf->beacon_int * 16); | |
483 | rt2x00_set_field32(®, CSR12_CFP_MAX_DURATION, | |
484 | libconf->conf->beacon_int * 16); | |
95ea3627 ID |
485 | rt2x00pci_register_write(rt2x00dev, CSR12, reg); |
486 | } | |
487 | ||
488 | static void rt2400pci_config(struct rt2x00_dev *rt2x00dev, | |
489 | const unsigned int flags, | |
5c58ee51 | 490 | struct rt2x00lib_conf *libconf) |
95ea3627 | 491 | { |
95ea3627 | 492 | if (flags & CONFIG_UPDATE_PHYMODE) |
5c58ee51 | 493 | rt2400pci_config_phymode(rt2x00dev, libconf->basic_rates); |
95ea3627 | 494 | if (flags & CONFIG_UPDATE_CHANNEL) |
5c58ee51 | 495 | rt2400pci_config_channel(rt2x00dev, &libconf->rf); |
95ea3627 | 496 | if (flags & CONFIG_UPDATE_TXPOWER) |
5c58ee51 ID |
497 | rt2400pci_config_txpower(rt2x00dev, |
498 | libconf->conf->power_level); | |
95ea3627 | 499 | if (flags & CONFIG_UPDATE_ANTENNA) |
addc81bd | 500 | rt2400pci_config_antenna(rt2x00dev, &libconf->ant); |
95ea3627 | 501 | if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT)) |
5c58ee51 | 502 | rt2400pci_config_duration(rt2x00dev, libconf); |
95ea3627 ID |
503 | } |
504 | ||
505 | static void rt2400pci_config_cw(struct rt2x00_dev *rt2x00dev, | |
506 | struct ieee80211_tx_queue_params *params) | |
507 | { | |
508 | u32 reg; | |
509 | ||
510 | rt2x00pci_register_read(rt2x00dev, CSR11, ®); | |
511 | rt2x00_set_field32(®, CSR11_CWMIN, params->cw_min); | |
512 | rt2x00_set_field32(®, CSR11_CWMAX, params->cw_max); | |
513 | rt2x00pci_register_write(rt2x00dev, CSR11, reg); | |
514 | } | |
515 | ||
516 | /* | |
517 | * LED functions. | |
518 | */ | |
519 | static void rt2400pci_enable_led(struct rt2x00_dev *rt2x00dev) | |
520 | { | |
521 | u32 reg; | |
522 | ||
523 | rt2x00pci_register_read(rt2x00dev, LEDCSR, ®); | |
524 | ||
525 | rt2x00_set_field32(®, LEDCSR_ON_PERIOD, 70); | |
526 | rt2x00_set_field32(®, LEDCSR_OFF_PERIOD, 30); | |
ddc827f9 ID |
527 | rt2x00_set_field32(®, LEDCSR_LINK, |
528 | (rt2x00dev->led_mode != LED_MODE_ASUS)); | |
529 | rt2x00_set_field32(®, LEDCSR_ACTIVITY, | |
530 | (rt2x00dev->led_mode != LED_MODE_TXRX_ACTIVITY)); | |
95ea3627 ID |
531 | rt2x00pci_register_write(rt2x00dev, LEDCSR, reg); |
532 | } | |
533 | ||
534 | static void rt2400pci_disable_led(struct rt2x00_dev *rt2x00dev) | |
535 | { | |
536 | u32 reg; | |
537 | ||
538 | rt2x00pci_register_read(rt2x00dev, LEDCSR, ®); | |
539 | rt2x00_set_field32(®, LEDCSR_LINK, 0); | |
540 | rt2x00_set_field32(®, LEDCSR_ACTIVITY, 0); | |
541 | rt2x00pci_register_write(rt2x00dev, LEDCSR, reg); | |
542 | } | |
543 | ||
544 | /* | |
545 | * Link tuning | |
546 | */ | |
ebcf26da ID |
547 | static void rt2400pci_link_stats(struct rt2x00_dev *rt2x00dev, |
548 | struct link_qual *qual) | |
95ea3627 ID |
549 | { |
550 | u32 reg; | |
551 | u8 bbp; | |
552 | ||
553 | /* | |
554 | * Update FCS error count from register. | |
555 | */ | |
556 | rt2x00pci_register_read(rt2x00dev, CNT0, ®); | |
ebcf26da | 557 | qual->rx_failed = rt2x00_get_field32(reg, CNT0_FCS_ERROR); |
95ea3627 ID |
558 | |
559 | /* | |
560 | * Update False CCA count from register. | |
561 | */ | |
562 | rt2400pci_bbp_read(rt2x00dev, 39, &bbp); | |
ebcf26da | 563 | qual->false_cca = bbp; |
95ea3627 ID |
564 | } |
565 | ||
566 | static void rt2400pci_reset_tuner(struct rt2x00_dev *rt2x00dev) | |
567 | { | |
568 | rt2400pci_bbp_write(rt2x00dev, 13, 0x08); | |
569 | rt2x00dev->link.vgc_level = 0x08; | |
570 | } | |
571 | ||
572 | static void rt2400pci_link_tuner(struct rt2x00_dev *rt2x00dev) | |
573 | { | |
574 | u8 reg; | |
575 | ||
576 | /* | |
577 | * The link tuner should not run longer then 60 seconds, | |
578 | * and should run once every 2 seconds. | |
579 | */ | |
580 | if (rt2x00dev->link.count > 60 || !(rt2x00dev->link.count & 1)) | |
581 | return; | |
582 | ||
583 | /* | |
584 | * Base r13 link tuning on the false cca count. | |
585 | */ | |
586 | rt2400pci_bbp_read(rt2x00dev, 13, ®); | |
587 | ||
ebcf26da | 588 | if (rt2x00dev->link.qual.false_cca > 512 && reg < 0x20) { |
95ea3627 ID |
589 | rt2400pci_bbp_write(rt2x00dev, 13, ++reg); |
590 | rt2x00dev->link.vgc_level = reg; | |
ebcf26da | 591 | } else if (rt2x00dev->link.qual.false_cca < 100 && reg > 0x08) { |
95ea3627 ID |
592 | rt2400pci_bbp_write(rt2x00dev, 13, --reg); |
593 | rt2x00dev->link.vgc_level = reg; | |
594 | } | |
595 | } | |
596 | ||
597 | /* | |
598 | * Initialization functions. | |
599 | */ | |
600 | static void rt2400pci_init_rxring(struct rt2x00_dev *rt2x00dev) | |
601 | { | |
602 | struct data_ring *ring = rt2x00dev->rx; | |
4bd7c452 | 603 | __le32 *rxd; |
95ea3627 ID |
604 | unsigned int i; |
605 | u32 word; | |
606 | ||
607 | memset(ring->data_addr, 0x00, rt2x00_get_ring_size(ring)); | |
608 | ||
609 | for (i = 0; i < ring->stats.limit; i++) { | |
610 | rxd = ring->entry[i].priv; | |
611 | ||
612 | rt2x00_desc_read(rxd, 2, &word); | |
613 | rt2x00_set_field32(&word, RXD_W2_BUFFER_LENGTH, | |
614 | ring->data_size); | |
615 | rt2x00_desc_write(rxd, 2, word); | |
616 | ||
617 | rt2x00_desc_read(rxd, 1, &word); | |
618 | rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS, | |
619 | ring->entry[i].data_dma); | |
620 | rt2x00_desc_write(rxd, 1, word); | |
621 | ||
622 | rt2x00_desc_read(rxd, 0, &word); | |
623 | rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1); | |
624 | rt2x00_desc_write(rxd, 0, word); | |
625 | } | |
626 | ||
627 | rt2x00_ring_index_clear(rt2x00dev->rx); | |
628 | } | |
629 | ||
630 | static void rt2400pci_init_txring(struct rt2x00_dev *rt2x00dev, const int queue) | |
631 | { | |
632 | struct data_ring *ring = rt2x00lib_get_ring(rt2x00dev, queue); | |
4bd7c452 | 633 | __le32 *txd; |
95ea3627 ID |
634 | unsigned int i; |
635 | u32 word; | |
636 | ||
637 | memset(ring->data_addr, 0x00, rt2x00_get_ring_size(ring)); | |
638 | ||
639 | for (i = 0; i < ring->stats.limit; i++) { | |
640 | txd = ring->entry[i].priv; | |
641 | ||
642 | rt2x00_desc_read(txd, 1, &word); | |
643 | rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, | |
644 | ring->entry[i].data_dma); | |
645 | rt2x00_desc_write(txd, 1, word); | |
646 | ||
647 | rt2x00_desc_read(txd, 2, &word); | |
648 | rt2x00_set_field32(&word, TXD_W2_BUFFER_LENGTH, | |
649 | ring->data_size); | |
650 | rt2x00_desc_write(txd, 2, word); | |
651 | ||
652 | rt2x00_desc_read(txd, 0, &word); | |
653 | rt2x00_set_field32(&word, TXD_W0_VALID, 0); | |
654 | rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0); | |
655 | rt2x00_desc_write(txd, 0, word); | |
656 | } | |
657 | ||
658 | rt2x00_ring_index_clear(ring); | |
659 | } | |
660 | ||
661 | static int rt2400pci_init_rings(struct rt2x00_dev *rt2x00dev) | |
662 | { | |
663 | u32 reg; | |
664 | ||
665 | /* | |
666 | * Initialize rings. | |
667 | */ | |
668 | rt2400pci_init_rxring(rt2x00dev); | |
669 | rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA0); | |
670 | rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_DATA1); | |
671 | rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_AFTER_BEACON); | |
672 | rt2400pci_init_txring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON); | |
673 | ||
674 | /* | |
675 | * Initialize registers. | |
676 | */ | |
677 | rt2x00pci_register_read(rt2x00dev, TXCSR2, ®); | |
678 | rt2x00_set_field32(®, TXCSR2_TXD_SIZE, | |
679 | rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].desc_size); | |
680 | rt2x00_set_field32(®, TXCSR2_NUM_TXD, | |
681 | rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].stats.limit); | |
682 | rt2x00_set_field32(®, TXCSR2_NUM_ATIM, | |
683 | rt2x00dev->bcn[1].stats.limit); | |
684 | rt2x00_set_field32(®, TXCSR2_NUM_PRIO, | |
685 | rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].stats.limit); | |
686 | rt2x00pci_register_write(rt2x00dev, TXCSR2, reg); | |
687 | ||
688 | rt2x00pci_register_read(rt2x00dev, TXCSR3, ®); | |
689 | rt2x00_set_field32(®, TXCSR3_TX_RING_REGISTER, | |
690 | rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].data_dma); | |
691 | rt2x00pci_register_write(rt2x00dev, TXCSR3, reg); | |
692 | ||
693 | rt2x00pci_register_read(rt2x00dev, TXCSR5, ®); | |
694 | rt2x00_set_field32(®, TXCSR5_PRIO_RING_REGISTER, | |
695 | rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].data_dma); | |
696 | rt2x00pci_register_write(rt2x00dev, TXCSR5, reg); | |
697 | ||
698 | rt2x00pci_register_read(rt2x00dev, TXCSR4, ®); | |
699 | rt2x00_set_field32(®, TXCSR4_ATIM_RING_REGISTER, | |
700 | rt2x00dev->bcn[1].data_dma); | |
701 | rt2x00pci_register_write(rt2x00dev, TXCSR4, reg); | |
702 | ||
703 | rt2x00pci_register_read(rt2x00dev, TXCSR6, ®); | |
704 | rt2x00_set_field32(®, TXCSR6_BEACON_RING_REGISTER, | |
705 | rt2x00dev->bcn[0].data_dma); | |
706 | rt2x00pci_register_write(rt2x00dev, TXCSR6, reg); | |
707 | ||
708 | rt2x00pci_register_read(rt2x00dev, RXCSR1, ®); | |
709 | rt2x00_set_field32(®, RXCSR1_RXD_SIZE, rt2x00dev->rx->desc_size); | |
710 | rt2x00_set_field32(®, RXCSR1_NUM_RXD, rt2x00dev->rx->stats.limit); | |
711 | rt2x00pci_register_write(rt2x00dev, RXCSR1, reg); | |
712 | ||
713 | rt2x00pci_register_read(rt2x00dev, RXCSR2, ®); | |
714 | rt2x00_set_field32(®, RXCSR2_RX_RING_REGISTER, | |
715 | rt2x00dev->rx->data_dma); | |
716 | rt2x00pci_register_write(rt2x00dev, RXCSR2, reg); | |
717 | ||
718 | return 0; | |
719 | } | |
720 | ||
721 | static int rt2400pci_init_registers(struct rt2x00_dev *rt2x00dev) | |
722 | { | |
723 | u32 reg; | |
724 | ||
725 | rt2x00pci_register_write(rt2x00dev, PSCSR0, 0x00020002); | |
726 | rt2x00pci_register_write(rt2x00dev, PSCSR1, 0x00000002); | |
727 | rt2x00pci_register_write(rt2x00dev, PSCSR2, 0x00023f20); | |
728 | rt2x00pci_register_write(rt2x00dev, PSCSR3, 0x00000002); | |
729 | ||
730 | rt2x00pci_register_read(rt2x00dev, TIMECSR, ®); | |
731 | rt2x00_set_field32(®, TIMECSR_US_COUNT, 33); | |
732 | rt2x00_set_field32(®, TIMECSR_US_64_COUNT, 63); | |
733 | rt2x00_set_field32(®, TIMECSR_BEACON_EXPECT, 0); | |
734 | rt2x00pci_register_write(rt2x00dev, TIMECSR, reg); | |
735 | ||
736 | rt2x00pci_register_read(rt2x00dev, CSR9, ®); | |
737 | rt2x00_set_field32(®, CSR9_MAX_FRAME_UNIT, | |
738 | (rt2x00dev->rx->data_size / 128)); | |
739 | rt2x00pci_register_write(rt2x00dev, CSR9, reg); | |
740 | ||
741 | rt2x00pci_register_write(rt2x00dev, CNT3, 0x3f080000); | |
742 | ||
743 | rt2x00pci_register_read(rt2x00dev, ARCSR0, ®); | |
744 | rt2x00_set_field32(®, ARCSR0_AR_BBP_DATA0, 133); | |
745 | rt2x00_set_field32(®, ARCSR0_AR_BBP_ID0, 134); | |
746 | rt2x00_set_field32(®, ARCSR0_AR_BBP_DATA1, 136); | |
747 | rt2x00_set_field32(®, ARCSR0_AR_BBP_ID1, 135); | |
748 | rt2x00pci_register_write(rt2x00dev, ARCSR0, reg); | |
749 | ||
750 | rt2x00pci_register_read(rt2x00dev, RXCSR3, ®); | |
751 | rt2x00_set_field32(®, RXCSR3_BBP_ID0, 3); /* Tx power.*/ | |
752 | rt2x00_set_field32(®, RXCSR3_BBP_ID0_VALID, 1); | |
753 | rt2x00_set_field32(®, RXCSR3_BBP_ID1, 32); /* Signal */ | |
754 | rt2x00_set_field32(®, RXCSR3_BBP_ID1_VALID, 1); | |
755 | rt2x00_set_field32(®, RXCSR3_BBP_ID2, 36); /* Rssi */ | |
756 | rt2x00_set_field32(®, RXCSR3_BBP_ID2_VALID, 1); | |
757 | rt2x00pci_register_write(rt2x00dev, RXCSR3, reg); | |
758 | ||
759 | rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0x3f3b3100); | |
760 | ||
761 | if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE)) | |
762 | return -EBUSY; | |
763 | ||
764 | rt2x00pci_register_write(rt2x00dev, MACCSR0, 0x00217223); | |
765 | rt2x00pci_register_write(rt2x00dev, MACCSR1, 0x00235518); | |
766 | ||
767 | rt2x00pci_register_read(rt2x00dev, MACCSR2, ®); | |
768 | rt2x00_set_field32(®, MACCSR2_DELAY, 64); | |
769 | rt2x00pci_register_write(rt2x00dev, MACCSR2, reg); | |
770 | ||
771 | rt2x00pci_register_read(rt2x00dev, RALINKCSR, ®); | |
772 | rt2x00_set_field32(®, RALINKCSR_AR_BBP_DATA0, 17); | |
773 | rt2x00_set_field32(®, RALINKCSR_AR_BBP_ID0, 154); | |
774 | rt2x00_set_field32(®, RALINKCSR_AR_BBP_DATA1, 0); | |
775 | rt2x00_set_field32(®, RALINKCSR_AR_BBP_ID1, 154); | |
776 | rt2x00pci_register_write(rt2x00dev, RALINKCSR, reg); | |
777 | ||
778 | rt2x00pci_register_read(rt2x00dev, CSR1, ®); | |
779 | rt2x00_set_field32(®, CSR1_SOFT_RESET, 1); | |
780 | rt2x00_set_field32(®, CSR1_BBP_RESET, 0); | |
781 | rt2x00_set_field32(®, CSR1_HOST_READY, 0); | |
782 | rt2x00pci_register_write(rt2x00dev, CSR1, reg); | |
783 | ||
784 | rt2x00pci_register_read(rt2x00dev, CSR1, ®); | |
785 | rt2x00_set_field32(®, CSR1_SOFT_RESET, 0); | |
786 | rt2x00_set_field32(®, CSR1_HOST_READY, 1); | |
787 | rt2x00pci_register_write(rt2x00dev, CSR1, reg); | |
788 | ||
789 | /* | |
790 | * We must clear the FCS and FIFO error count. | |
791 | * These registers are cleared on read, | |
792 | * so we may pass a useless variable to store the value. | |
793 | */ | |
794 | rt2x00pci_register_read(rt2x00dev, CNT0, ®); | |
795 | rt2x00pci_register_read(rt2x00dev, CNT4, ®); | |
796 | ||
797 | return 0; | |
798 | } | |
799 | ||
800 | static int rt2400pci_init_bbp(struct rt2x00_dev *rt2x00dev) | |
801 | { | |
802 | unsigned int i; | |
803 | u16 eeprom; | |
804 | u8 reg_id; | |
805 | u8 value; | |
806 | ||
807 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { | |
808 | rt2400pci_bbp_read(rt2x00dev, 0, &value); | |
809 | if ((value != 0xff) && (value != 0x00)) | |
810 | goto continue_csr_init; | |
811 | NOTICE(rt2x00dev, "Waiting for BBP register.\n"); | |
812 | udelay(REGISTER_BUSY_DELAY); | |
813 | } | |
814 | ||
815 | ERROR(rt2x00dev, "BBP register access failed, aborting.\n"); | |
816 | return -EACCES; | |
817 | ||
818 | continue_csr_init: | |
819 | rt2400pci_bbp_write(rt2x00dev, 1, 0x00); | |
820 | rt2400pci_bbp_write(rt2x00dev, 3, 0x27); | |
821 | rt2400pci_bbp_write(rt2x00dev, 4, 0x08); | |
822 | rt2400pci_bbp_write(rt2x00dev, 10, 0x0f); | |
823 | rt2400pci_bbp_write(rt2x00dev, 15, 0x72); | |
824 | rt2400pci_bbp_write(rt2x00dev, 16, 0x74); | |
825 | rt2400pci_bbp_write(rt2x00dev, 17, 0x20); | |
826 | rt2400pci_bbp_write(rt2x00dev, 18, 0x72); | |
827 | rt2400pci_bbp_write(rt2x00dev, 19, 0x0b); | |
828 | rt2400pci_bbp_write(rt2x00dev, 20, 0x00); | |
829 | rt2400pci_bbp_write(rt2x00dev, 28, 0x11); | |
830 | rt2400pci_bbp_write(rt2x00dev, 29, 0x04); | |
831 | rt2400pci_bbp_write(rt2x00dev, 30, 0x21); | |
832 | rt2400pci_bbp_write(rt2x00dev, 31, 0x00); | |
833 | ||
834 | DEBUG(rt2x00dev, "Start initialization from EEPROM...\n"); | |
835 | for (i = 0; i < EEPROM_BBP_SIZE; i++) { | |
836 | rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom); | |
837 | ||
838 | if (eeprom != 0xffff && eeprom != 0x0000) { | |
839 | reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID); | |
840 | value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE); | |
841 | DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n", | |
842 | reg_id, value); | |
843 | rt2400pci_bbp_write(rt2x00dev, reg_id, value); | |
844 | } | |
845 | } | |
846 | DEBUG(rt2x00dev, "...End initialization from EEPROM.\n"); | |
847 | ||
848 | return 0; | |
849 | } | |
850 | ||
851 | /* | |
852 | * Device state switch handlers. | |
853 | */ | |
854 | static void rt2400pci_toggle_rx(struct rt2x00_dev *rt2x00dev, | |
855 | enum dev_state state) | |
856 | { | |
857 | u32 reg; | |
858 | ||
859 | rt2x00pci_register_read(rt2x00dev, RXCSR0, ®); | |
860 | rt2x00_set_field32(®, RXCSR0_DISABLE_RX, | |
861 | state == STATE_RADIO_RX_OFF); | |
862 | rt2x00pci_register_write(rt2x00dev, RXCSR0, reg); | |
863 | } | |
864 | ||
865 | static void rt2400pci_toggle_irq(struct rt2x00_dev *rt2x00dev, | |
866 | enum dev_state state) | |
867 | { | |
868 | int mask = (state == STATE_RADIO_IRQ_OFF); | |
869 | u32 reg; | |
870 | ||
871 | /* | |
872 | * When interrupts are being enabled, the interrupt registers | |
873 | * should clear the register to assure a clean state. | |
874 | */ | |
875 | if (state == STATE_RADIO_IRQ_ON) { | |
876 | rt2x00pci_register_read(rt2x00dev, CSR7, ®); | |
877 | rt2x00pci_register_write(rt2x00dev, CSR7, reg); | |
878 | } | |
879 | ||
880 | /* | |
881 | * Only toggle the interrupts bits we are going to use. | |
882 | * Non-checked interrupt bits are disabled by default. | |
883 | */ | |
884 | rt2x00pci_register_read(rt2x00dev, CSR8, ®); | |
885 | rt2x00_set_field32(®, CSR8_TBCN_EXPIRE, mask); | |
886 | rt2x00_set_field32(®, CSR8_TXDONE_TXRING, mask); | |
887 | rt2x00_set_field32(®, CSR8_TXDONE_ATIMRING, mask); | |
888 | rt2x00_set_field32(®, CSR8_TXDONE_PRIORING, mask); | |
889 | rt2x00_set_field32(®, CSR8_RXDONE, mask); | |
890 | rt2x00pci_register_write(rt2x00dev, CSR8, reg); | |
891 | } | |
892 | ||
893 | static int rt2400pci_enable_radio(struct rt2x00_dev *rt2x00dev) | |
894 | { | |
895 | /* | |
896 | * Initialize all registers. | |
897 | */ | |
898 | if (rt2400pci_init_rings(rt2x00dev) || | |
899 | rt2400pci_init_registers(rt2x00dev) || | |
900 | rt2400pci_init_bbp(rt2x00dev)) { | |
901 | ERROR(rt2x00dev, "Register initialization failed.\n"); | |
902 | return -EIO; | |
903 | } | |
904 | ||
905 | /* | |
906 | * Enable interrupts. | |
907 | */ | |
908 | rt2400pci_toggle_irq(rt2x00dev, STATE_RADIO_IRQ_ON); | |
909 | ||
910 | /* | |
911 | * Enable LED | |
912 | */ | |
913 | rt2400pci_enable_led(rt2x00dev); | |
914 | ||
915 | return 0; | |
916 | } | |
917 | ||
918 | static void rt2400pci_disable_radio(struct rt2x00_dev *rt2x00dev) | |
919 | { | |
920 | u32 reg; | |
921 | ||
922 | /* | |
923 | * Disable LED | |
924 | */ | |
925 | rt2400pci_disable_led(rt2x00dev); | |
926 | ||
927 | rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0); | |
928 | ||
929 | /* | |
930 | * Disable synchronisation. | |
931 | */ | |
932 | rt2x00pci_register_write(rt2x00dev, CSR14, 0); | |
933 | ||
934 | /* | |
935 | * Cancel RX and TX. | |
936 | */ | |
937 | rt2x00pci_register_read(rt2x00dev, TXCSR0, ®); | |
938 | rt2x00_set_field32(®, TXCSR0_ABORT, 1); | |
939 | rt2x00pci_register_write(rt2x00dev, TXCSR0, reg); | |
940 | ||
941 | /* | |
942 | * Disable interrupts. | |
943 | */ | |
944 | rt2400pci_toggle_irq(rt2x00dev, STATE_RADIO_IRQ_OFF); | |
945 | } | |
946 | ||
947 | static int rt2400pci_set_state(struct rt2x00_dev *rt2x00dev, | |
948 | enum dev_state state) | |
949 | { | |
950 | u32 reg; | |
951 | unsigned int i; | |
952 | char put_to_sleep; | |
953 | char bbp_state; | |
954 | char rf_state; | |
955 | ||
956 | put_to_sleep = (state != STATE_AWAKE); | |
957 | ||
958 | rt2x00pci_register_read(rt2x00dev, PWRCSR1, ®); | |
959 | rt2x00_set_field32(®, PWRCSR1_SET_STATE, 1); | |
960 | rt2x00_set_field32(®, PWRCSR1_BBP_DESIRE_STATE, state); | |
961 | rt2x00_set_field32(®, PWRCSR1_RF_DESIRE_STATE, state); | |
962 | rt2x00_set_field32(®, PWRCSR1_PUT_TO_SLEEP, put_to_sleep); | |
963 | rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg); | |
964 | ||
965 | /* | |
966 | * Device is not guaranteed to be in the requested state yet. | |
967 | * We must wait until the register indicates that the | |
968 | * device has entered the correct state. | |
969 | */ | |
970 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { | |
971 | rt2x00pci_register_read(rt2x00dev, PWRCSR1, ®); | |
972 | bbp_state = rt2x00_get_field32(reg, PWRCSR1_BBP_CURR_STATE); | |
973 | rf_state = rt2x00_get_field32(reg, PWRCSR1_RF_CURR_STATE); | |
974 | if (bbp_state == state && rf_state == state) | |
975 | return 0; | |
976 | msleep(10); | |
977 | } | |
978 | ||
979 | NOTICE(rt2x00dev, "Device failed to enter state %d, " | |
980 | "current device state: bbp %d and rf %d.\n", | |
981 | state, bbp_state, rf_state); | |
982 | ||
983 | return -EBUSY; | |
984 | } | |
985 | ||
986 | static int rt2400pci_set_device_state(struct rt2x00_dev *rt2x00dev, | |
987 | enum dev_state state) | |
988 | { | |
989 | int retval = 0; | |
990 | ||
991 | switch (state) { | |
992 | case STATE_RADIO_ON: | |
993 | retval = rt2400pci_enable_radio(rt2x00dev); | |
994 | break; | |
995 | case STATE_RADIO_OFF: | |
996 | rt2400pci_disable_radio(rt2x00dev); | |
997 | break; | |
998 | case STATE_RADIO_RX_ON: | |
999 | case STATE_RADIO_RX_OFF: | |
1000 | rt2400pci_toggle_rx(rt2x00dev, state); | |
1001 | break; | |
1002 | case STATE_DEEP_SLEEP: | |
1003 | case STATE_SLEEP: | |
1004 | case STATE_STANDBY: | |
1005 | case STATE_AWAKE: | |
1006 | retval = rt2400pci_set_state(rt2x00dev, state); | |
1007 | break; | |
1008 | default: | |
1009 | retval = -ENOTSUPP; | |
1010 | break; | |
1011 | } | |
1012 | ||
1013 | return retval; | |
1014 | } | |
1015 | ||
1016 | /* | |
1017 | * TX descriptor initialization | |
1018 | */ | |
1019 | static void rt2400pci_write_tx_desc(struct rt2x00_dev *rt2x00dev, | |
4bd7c452 | 1020 | __le32 *txd, |
4150c572 | 1021 | struct txdata_entry_desc *desc, |
95ea3627 ID |
1022 | struct ieee80211_hdr *ieee80211hdr, |
1023 | unsigned int length, | |
1024 | struct ieee80211_tx_control *control) | |
1025 | { | |
1026 | u32 word; | |
1027 | u32 signal = 0; | |
1028 | u32 service = 0; | |
1029 | u32 length_high = 0; | |
1030 | u32 length_low = 0; | |
1031 | ||
1032 | /* | |
1033 | * The PLCP values should be treated as if they | |
1034 | * were BBP values. | |
1035 | */ | |
1036 | rt2x00_set_field32(&signal, BBPCSR_VALUE, desc->signal); | |
1037 | rt2x00_set_field32(&signal, BBPCSR_REGNUM, 5); | |
1038 | rt2x00_set_field32(&signal, BBPCSR_BUSY, 1); | |
1039 | ||
1040 | rt2x00_set_field32(&service, BBPCSR_VALUE, desc->service); | |
1041 | rt2x00_set_field32(&service, BBPCSR_REGNUM, 6); | |
1042 | rt2x00_set_field32(&service, BBPCSR_BUSY, 1); | |
1043 | ||
1044 | rt2x00_set_field32(&length_high, BBPCSR_VALUE, desc->length_high); | |
1045 | rt2x00_set_field32(&length_high, BBPCSR_REGNUM, 7); | |
1046 | rt2x00_set_field32(&length_high, BBPCSR_BUSY, 1); | |
1047 | ||
1048 | rt2x00_set_field32(&length_low, BBPCSR_VALUE, desc->length_low); | |
1049 | rt2x00_set_field32(&length_low, BBPCSR_REGNUM, 8); | |
1050 | rt2x00_set_field32(&length_low, BBPCSR_BUSY, 1); | |
1051 | ||
1052 | /* | |
1053 | * Start writing the descriptor words. | |
1054 | */ | |
1055 | rt2x00_desc_read(txd, 2, &word); | |
1056 | rt2x00_set_field32(&word, TXD_W2_DATABYTE_COUNT, length); | |
1057 | rt2x00_desc_write(txd, 2, word); | |
1058 | ||
1059 | rt2x00_desc_read(txd, 3, &word); | |
1060 | rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, signal); | |
1061 | rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, service); | |
1062 | rt2x00_desc_write(txd, 3, word); | |
1063 | ||
1064 | rt2x00_desc_read(txd, 4, &word); | |
1065 | rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_LOW, length_low); | |
1066 | rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_HIGH, length_high); | |
1067 | rt2x00_desc_write(txd, 4, word); | |
1068 | ||
1069 | rt2x00_desc_read(txd, 0, &word); | |
1070 | rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1); | |
1071 | rt2x00_set_field32(&word, TXD_W0_VALID, 1); | |
1072 | rt2x00_set_field32(&word, TXD_W0_MORE_FRAG, | |
1073 | test_bit(ENTRY_TXD_MORE_FRAG, &desc->flags)); | |
1074 | rt2x00_set_field32(&word, TXD_W0_ACK, | |
2700f8b0 | 1075 | test_bit(ENTRY_TXD_ACK, &desc->flags)); |
95ea3627 ID |
1076 | rt2x00_set_field32(&word, TXD_W0_TIMESTAMP, |
1077 | test_bit(ENTRY_TXD_REQ_TIMESTAMP, &desc->flags)); | |
1078 | rt2x00_set_field32(&word, TXD_W0_RTS, | |
1079 | test_bit(ENTRY_TXD_RTS_FRAME, &desc->flags)); | |
1080 | rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs); | |
1081 | rt2x00_set_field32(&word, TXD_W0_RETRY_MODE, | |
1082 | !!(control->flags & | |
1083 | IEEE80211_TXCTL_LONG_RETRY_LIMIT)); | |
1084 | rt2x00_desc_write(txd, 0, word); | |
1085 | } | |
1086 | ||
1087 | /* | |
1088 | * TX data initialization | |
1089 | */ | |
1090 | static void rt2400pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev, | |
1091 | unsigned int queue) | |
1092 | { | |
1093 | u32 reg; | |
1094 | ||
1095 | if (queue == IEEE80211_TX_QUEUE_BEACON) { | |
1096 | rt2x00pci_register_read(rt2x00dev, CSR14, ®); | |
1097 | if (!rt2x00_get_field32(reg, CSR14_BEACON_GEN)) { | |
1098 | rt2x00_set_field32(®, CSR14_BEACON_GEN, 1); | |
1099 | rt2x00pci_register_write(rt2x00dev, CSR14, reg); | |
1100 | } | |
1101 | return; | |
1102 | } | |
1103 | ||
1104 | rt2x00pci_register_read(rt2x00dev, TXCSR0, ®); | |
ddc827f9 ID |
1105 | rt2x00_set_field32(®, TXCSR0_KICK_PRIO, |
1106 | (queue == IEEE80211_TX_QUEUE_DATA0)); | |
1107 | rt2x00_set_field32(®, TXCSR0_KICK_TX, | |
1108 | (queue == IEEE80211_TX_QUEUE_DATA1)); | |
1109 | rt2x00_set_field32(®, TXCSR0_KICK_ATIM, | |
1110 | (queue == IEEE80211_TX_QUEUE_AFTER_BEACON)); | |
95ea3627 ID |
1111 | rt2x00pci_register_write(rt2x00dev, TXCSR0, reg); |
1112 | } | |
1113 | ||
1114 | /* | |
1115 | * RX control handlers | |
1116 | */ | |
4150c572 JB |
1117 | static void rt2400pci_fill_rxdone(struct data_entry *entry, |
1118 | struct rxdata_entry_desc *desc) | |
95ea3627 | 1119 | { |
4bd7c452 | 1120 | __le32 *rxd = entry->priv; |
95ea3627 ID |
1121 | u32 word0; |
1122 | u32 word2; | |
1123 | ||
1124 | rt2x00_desc_read(rxd, 0, &word0); | |
1125 | rt2x00_desc_read(rxd, 2, &word2); | |
1126 | ||
4150c572 JB |
1127 | desc->flags = 0; |
1128 | if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR)) | |
1129 | desc->flags |= RX_FLAG_FAILED_FCS_CRC; | |
1130 | if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR)) | |
1131 | desc->flags |= RX_FLAG_FAILED_PLCP_CRC; | |
95ea3627 ID |
1132 | |
1133 | /* | |
1134 | * Obtain the status about this packet. | |
1135 | */ | |
4150c572 JB |
1136 | desc->signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL); |
1137 | desc->rssi = rt2x00_get_field32(word2, RXD_W2_RSSI) - | |
95ea3627 | 1138 | entry->ring->rt2x00dev->rssi_offset; |
4150c572 JB |
1139 | desc->ofdm = 0; |
1140 | desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT); | |
95ea3627 ID |
1141 | } |
1142 | ||
1143 | /* | |
1144 | * Interrupt functions. | |
1145 | */ | |
1146 | static void rt2400pci_txdone(struct rt2x00_dev *rt2x00dev, const int queue) | |
1147 | { | |
1148 | struct data_ring *ring = rt2x00lib_get_ring(rt2x00dev, queue); | |
1149 | struct data_entry *entry; | |
4bd7c452 | 1150 | __le32 *txd; |
95ea3627 ID |
1151 | u32 word; |
1152 | int tx_status; | |
1153 | int retry; | |
1154 | ||
1155 | while (!rt2x00_ring_empty(ring)) { | |
1156 | entry = rt2x00_get_data_entry_done(ring); | |
1157 | txd = entry->priv; | |
1158 | rt2x00_desc_read(txd, 0, &word); | |
1159 | ||
1160 | if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) || | |
1161 | !rt2x00_get_field32(word, TXD_W0_VALID)) | |
1162 | break; | |
1163 | ||
1164 | /* | |
1165 | * Obtain the status about this packet. | |
1166 | */ | |
1167 | tx_status = rt2x00_get_field32(word, TXD_W0_RESULT); | |
1168 | retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT); | |
1169 | ||
3957ccb5 | 1170 | rt2x00pci_txdone(rt2x00dev, entry, tx_status, retry); |
95ea3627 | 1171 | } |
95ea3627 ID |
1172 | } |
1173 | ||
1174 | static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance) | |
1175 | { | |
1176 | struct rt2x00_dev *rt2x00dev = dev_instance; | |
1177 | u32 reg; | |
1178 | ||
1179 | /* | |
1180 | * Get the interrupt sources & saved to local variable. | |
1181 | * Write register value back to clear pending interrupts. | |
1182 | */ | |
1183 | rt2x00pci_register_read(rt2x00dev, CSR7, ®); | |
1184 | rt2x00pci_register_write(rt2x00dev, CSR7, reg); | |
1185 | ||
1186 | if (!reg) | |
1187 | return IRQ_NONE; | |
1188 | ||
1189 | if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags)) | |
1190 | return IRQ_HANDLED; | |
1191 | ||
1192 | /* | |
1193 | * Handle interrupts, walk through all bits | |
1194 | * and run the tasks, the bits are checked in order of | |
1195 | * priority. | |
1196 | */ | |
1197 | ||
1198 | /* | |
1199 | * 1 - Beacon timer expired interrupt. | |
1200 | */ | |
1201 | if (rt2x00_get_field32(reg, CSR7_TBCN_EXPIRE)) | |
1202 | rt2x00lib_beacondone(rt2x00dev); | |
1203 | ||
1204 | /* | |
1205 | * 2 - Rx ring done interrupt. | |
1206 | */ | |
1207 | if (rt2x00_get_field32(reg, CSR7_RXDONE)) | |
1208 | rt2x00pci_rxdone(rt2x00dev); | |
1209 | ||
1210 | /* | |
1211 | * 3 - Atim ring transmit done interrupt. | |
1212 | */ | |
1213 | if (rt2x00_get_field32(reg, CSR7_TXDONE_ATIMRING)) | |
1214 | rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_AFTER_BEACON); | |
1215 | ||
1216 | /* | |
1217 | * 4 - Priority ring transmit done interrupt. | |
1218 | */ | |
1219 | if (rt2x00_get_field32(reg, CSR7_TXDONE_PRIORING)) | |
1220 | rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_DATA0); | |
1221 | ||
1222 | /* | |
1223 | * 5 - Tx ring transmit done interrupt. | |
1224 | */ | |
1225 | if (rt2x00_get_field32(reg, CSR7_TXDONE_TXRING)) | |
1226 | rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_DATA1); | |
1227 | ||
1228 | return IRQ_HANDLED; | |
1229 | } | |
1230 | ||
1231 | /* | |
1232 | * Device probe functions. | |
1233 | */ | |
1234 | static int rt2400pci_validate_eeprom(struct rt2x00_dev *rt2x00dev) | |
1235 | { | |
1236 | struct eeprom_93cx6 eeprom; | |
1237 | u32 reg; | |
1238 | u16 word; | |
1239 | u8 *mac; | |
1240 | ||
1241 | rt2x00pci_register_read(rt2x00dev, CSR21, ®); | |
1242 | ||
1243 | eeprom.data = rt2x00dev; | |
1244 | eeprom.register_read = rt2400pci_eepromregister_read; | |
1245 | eeprom.register_write = rt2400pci_eepromregister_write; | |
1246 | eeprom.width = rt2x00_get_field32(reg, CSR21_TYPE_93C46) ? | |
1247 | PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66; | |
1248 | eeprom.reg_data_in = 0; | |
1249 | eeprom.reg_data_out = 0; | |
1250 | eeprom.reg_data_clock = 0; | |
1251 | eeprom.reg_chip_select = 0; | |
1252 | ||
1253 | eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom, | |
1254 | EEPROM_SIZE / sizeof(u16)); | |
1255 | ||
1256 | /* | |
1257 | * Start validation of the data that has been read. | |
1258 | */ | |
1259 | mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0); | |
1260 | if (!is_valid_ether_addr(mac)) { | |
0795af57 JP |
1261 | DECLARE_MAC_BUF(macbuf); |
1262 | ||
95ea3627 | 1263 | random_ether_addr(mac); |
0795af57 | 1264 | EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, mac)); |
95ea3627 ID |
1265 | } |
1266 | ||
1267 | rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word); | |
1268 | if (word == 0xffff) { | |
1269 | ERROR(rt2x00dev, "Invalid EEPROM data detected.\n"); | |
1270 | return -EINVAL; | |
1271 | } | |
1272 | ||
1273 | return 0; | |
1274 | } | |
1275 | ||
1276 | static int rt2400pci_init_eeprom(struct rt2x00_dev *rt2x00dev) | |
1277 | { | |
1278 | u32 reg; | |
1279 | u16 value; | |
1280 | u16 eeprom; | |
1281 | ||
1282 | /* | |
1283 | * Read EEPROM word for configuration. | |
1284 | */ | |
1285 | rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom); | |
1286 | ||
1287 | /* | |
1288 | * Identify RF chipset. | |
1289 | */ | |
1290 | value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE); | |
1291 | rt2x00pci_register_read(rt2x00dev, CSR0, ®); | |
1292 | rt2x00_set_chip(rt2x00dev, RT2460, value, reg); | |
1293 | ||
1294 | if (!rt2x00_rf(&rt2x00dev->chip, RF2420) && | |
1295 | !rt2x00_rf(&rt2x00dev->chip, RF2421)) { | |
1296 | ERROR(rt2x00dev, "Invalid RF chipset detected.\n"); | |
1297 | return -ENODEV; | |
1298 | } | |
1299 | ||
1300 | /* | |
1301 | * Identify default antenna configuration. | |
1302 | */ | |
addc81bd | 1303 | rt2x00dev->default_ant.tx = |
95ea3627 | 1304 | rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT); |
addc81bd | 1305 | rt2x00dev->default_ant.rx = |
95ea3627 ID |
1306 | rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT); |
1307 | ||
addc81bd ID |
1308 | /* |
1309 | * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead. | |
1310 | * I am not 100% sure about this, but the legacy drivers do not | |
1311 | * indicate antenna swapping in software is required when | |
1312 | * diversity is enabled. | |
1313 | */ | |
1314 | if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY) | |
1315 | rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY; | |
1316 | if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY) | |
1317 | rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY; | |
1318 | ||
95ea3627 ID |
1319 | /* |
1320 | * Store led mode, for correct led behaviour. | |
1321 | */ | |
1322 | rt2x00dev->led_mode = | |
1323 | rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE); | |
1324 | ||
1325 | /* | |
1326 | * Detect if this device has an hardware controlled radio. | |
1327 | */ | |
81873e9c | 1328 | #ifdef CONFIG_RT2400PCI_RFKILL |
95ea3627 | 1329 | if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO)) |
066cb637 | 1330 | __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags); |
81873e9c | 1331 | #endif /* CONFIG_RT2400PCI_RFKILL */ |
95ea3627 ID |
1332 | |
1333 | /* | |
1334 | * Check if the BBP tuning should be enabled. | |
1335 | */ | |
1336 | if (!rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_AGCVGC_TUNING)) | |
1337 | __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags); | |
1338 | ||
1339 | return 0; | |
1340 | } | |
1341 | ||
1342 | /* | |
1343 | * RF value list for RF2420 & RF2421 | |
1344 | * Supports: 2.4 GHz | |
1345 | */ | |
1346 | static const struct rf_channel rf_vals_bg[] = { | |
1347 | { 1, 0x00022058, 0x000c1fda, 0x00000101, 0 }, | |
1348 | { 2, 0x00022058, 0x000c1fee, 0x00000101, 0 }, | |
1349 | { 3, 0x00022058, 0x000c2002, 0x00000101, 0 }, | |
1350 | { 4, 0x00022058, 0x000c2016, 0x00000101, 0 }, | |
1351 | { 5, 0x00022058, 0x000c202a, 0x00000101, 0 }, | |
1352 | { 6, 0x00022058, 0x000c203e, 0x00000101, 0 }, | |
1353 | { 7, 0x00022058, 0x000c2052, 0x00000101, 0 }, | |
1354 | { 8, 0x00022058, 0x000c2066, 0x00000101, 0 }, | |
1355 | { 9, 0x00022058, 0x000c207a, 0x00000101, 0 }, | |
1356 | { 10, 0x00022058, 0x000c208e, 0x00000101, 0 }, | |
1357 | { 11, 0x00022058, 0x000c20a2, 0x00000101, 0 }, | |
1358 | { 12, 0x00022058, 0x000c20b6, 0x00000101, 0 }, | |
1359 | { 13, 0x00022058, 0x000c20ca, 0x00000101, 0 }, | |
1360 | { 14, 0x00022058, 0x000c20fa, 0x00000101, 0 }, | |
1361 | }; | |
1362 | ||
1363 | static void rt2400pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev) | |
1364 | { | |
1365 | struct hw_mode_spec *spec = &rt2x00dev->spec; | |
1366 | u8 *txpower; | |
1367 | unsigned int i; | |
1368 | ||
1369 | /* | |
1370 | * Initialize all hw fields. | |
1371 | */ | |
4150c572 | 1372 | rt2x00dev->hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING; |
95ea3627 ID |
1373 | rt2x00dev->hw->extra_tx_headroom = 0; |
1374 | rt2x00dev->hw->max_signal = MAX_SIGNAL; | |
1375 | rt2x00dev->hw->max_rssi = MAX_RX_SSI; | |
1376 | rt2x00dev->hw->queues = 2; | |
1377 | ||
1378 | SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_pci(rt2x00dev)->dev); | |
1379 | SET_IEEE80211_PERM_ADDR(rt2x00dev->hw, | |
1380 | rt2x00_eeprom_addr(rt2x00dev, | |
1381 | EEPROM_MAC_ADDR_0)); | |
1382 | ||
1383 | /* | |
1384 | * Convert tx_power array in eeprom. | |
1385 | */ | |
1386 | txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START); | |
1387 | for (i = 0; i < 14; i++) | |
1388 | txpower[i] = TXPOWER_FROM_DEV(txpower[i]); | |
1389 | ||
1390 | /* | |
1391 | * Initialize hw_mode information. | |
1392 | */ | |
1393 | spec->num_modes = 1; | |
1394 | spec->num_rates = 4; | |
1395 | spec->tx_power_a = NULL; | |
1396 | spec->tx_power_bg = txpower; | |
1397 | spec->tx_power_default = DEFAULT_TXPOWER; | |
1398 | ||
1399 | spec->num_channels = ARRAY_SIZE(rf_vals_bg); | |
1400 | spec->channels = rf_vals_bg; | |
1401 | } | |
1402 | ||
1403 | static int rt2400pci_probe_hw(struct rt2x00_dev *rt2x00dev) | |
1404 | { | |
1405 | int retval; | |
1406 | ||
1407 | /* | |
1408 | * Allocate eeprom data. | |
1409 | */ | |
1410 | retval = rt2400pci_validate_eeprom(rt2x00dev); | |
1411 | if (retval) | |
1412 | return retval; | |
1413 | ||
1414 | retval = rt2400pci_init_eeprom(rt2x00dev); | |
1415 | if (retval) | |
1416 | return retval; | |
1417 | ||
1418 | /* | |
1419 | * Initialize hw specifications. | |
1420 | */ | |
1421 | rt2400pci_probe_hw_mode(rt2x00dev); | |
1422 | ||
1423 | /* | |
1424 | * This device requires the beacon ring | |
1425 | */ | |
066cb637 | 1426 | __set_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags); |
95ea3627 ID |
1427 | |
1428 | /* | |
1429 | * Set the rssi offset. | |
1430 | */ | |
1431 | rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET; | |
1432 | ||
1433 | return 0; | |
1434 | } | |
1435 | ||
1436 | /* | |
1437 | * IEEE80211 stack callback functions. | |
1438 | */ | |
4150c572 JB |
1439 | static void rt2400pci_configure_filter(struct ieee80211_hw *hw, |
1440 | unsigned int changed_flags, | |
1441 | unsigned int *total_flags, | |
1442 | int mc_count, | |
1443 | struct dev_addr_list *mc_list) | |
1444 | { | |
1445 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1446 | struct interface *intf = &rt2x00dev->interface; | |
1447 | u32 reg; | |
1448 | ||
1449 | /* | |
1450 | * Mask off any flags we are going to ignore from | |
1451 | * the total_flags field. | |
1452 | */ | |
1453 | *total_flags &= | |
1454 | FIF_ALLMULTI | | |
1455 | FIF_FCSFAIL | | |
1456 | FIF_PLCPFAIL | | |
1457 | FIF_CONTROL | | |
1458 | FIF_OTHER_BSS | | |
1459 | FIF_PROMISC_IN_BSS; | |
1460 | ||
1461 | /* | |
1462 | * Apply some rules to the filters: | |
1463 | * - Some filters imply different filters to be set. | |
1464 | * - Some things we can't filter out at all. | |
1465 | * - Some filters are set based on interface type. | |
1466 | */ | |
1467 | *total_flags |= FIF_ALLMULTI; | |
5886d0db ID |
1468 | if (*total_flags & FIF_OTHER_BSS || |
1469 | *total_flags & FIF_PROMISC_IN_BSS) | |
4150c572 JB |
1470 | *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS; |
1471 | if (is_interface_type(intf, IEEE80211_IF_TYPE_AP)) | |
1472 | *total_flags |= FIF_PROMISC_IN_BSS; | |
1473 | ||
1474 | /* | |
1475 | * Check if there is any work left for us. | |
1476 | */ | |
1477 | if (intf->filter == *total_flags) | |
1478 | return; | |
1479 | intf->filter = *total_flags; | |
1480 | ||
1481 | /* | |
1482 | * Start configuration steps. | |
1483 | * Note that the version error will always be dropped | |
1484 | * since there is no filter for it at this time. | |
1485 | */ | |
1486 | rt2x00pci_register_read(rt2x00dev, RXCSR0, ®); | |
1487 | rt2x00_set_field32(®, RXCSR0_DROP_CRC, | |
1488 | !(*total_flags & FIF_FCSFAIL)); | |
1489 | rt2x00_set_field32(®, RXCSR0_DROP_PHYSICAL, | |
1490 | !(*total_flags & FIF_PLCPFAIL)); | |
1491 | rt2x00_set_field32(®, RXCSR0_DROP_CONTROL, | |
1492 | !(*total_flags & FIF_CONTROL)); | |
1493 | rt2x00_set_field32(®, RXCSR0_DROP_NOT_TO_ME, | |
1494 | !(*total_flags & FIF_PROMISC_IN_BSS)); | |
1495 | rt2x00_set_field32(®, RXCSR0_DROP_TODS, | |
1496 | !(*total_flags & FIF_PROMISC_IN_BSS)); | |
1497 | rt2x00_set_field32(®, RXCSR0_DROP_VERSION_ERROR, 1); | |
1498 | rt2x00pci_register_write(rt2x00dev, RXCSR0, reg); | |
1499 | } | |
1500 | ||
95ea3627 ID |
1501 | static int rt2400pci_set_retry_limit(struct ieee80211_hw *hw, |
1502 | u32 short_retry, u32 long_retry) | |
1503 | { | |
1504 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1505 | u32 reg; | |
1506 | ||
1507 | rt2x00pci_register_read(rt2x00dev, CSR11, ®); | |
1508 | rt2x00_set_field32(®, CSR11_LONG_RETRY, long_retry); | |
1509 | rt2x00_set_field32(®, CSR11_SHORT_RETRY, short_retry); | |
1510 | rt2x00pci_register_write(rt2x00dev, CSR11, reg); | |
1511 | ||
1512 | return 0; | |
1513 | } | |
1514 | ||
1515 | static int rt2400pci_conf_tx(struct ieee80211_hw *hw, | |
1516 | int queue, | |
1517 | const struct ieee80211_tx_queue_params *params) | |
1518 | { | |
1519 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1520 | ||
1521 | /* | |
1522 | * We don't support variating cw_min and cw_max variables | |
1523 | * per queue. So by default we only configure the TX queue, | |
1524 | * and ignore all other configurations. | |
1525 | */ | |
1526 | if (queue != IEEE80211_TX_QUEUE_DATA0) | |
1527 | return -EINVAL; | |
1528 | ||
1529 | if (rt2x00mac_conf_tx(hw, queue, params)) | |
1530 | return -EINVAL; | |
1531 | ||
1532 | /* | |
1533 | * Write configuration to register. | |
1534 | */ | |
1535 | rt2400pci_config_cw(rt2x00dev, &rt2x00dev->tx->tx_params); | |
1536 | ||
1537 | return 0; | |
1538 | } | |
1539 | ||
1540 | static u64 rt2400pci_get_tsf(struct ieee80211_hw *hw) | |
1541 | { | |
1542 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1543 | u64 tsf; | |
1544 | u32 reg; | |
1545 | ||
1546 | rt2x00pci_register_read(rt2x00dev, CSR17, ®); | |
1547 | tsf = (u64) rt2x00_get_field32(reg, CSR17_HIGH_TSFTIMER) << 32; | |
1548 | rt2x00pci_register_read(rt2x00dev, CSR16, ®); | |
1549 | tsf |= rt2x00_get_field32(reg, CSR16_LOW_TSFTIMER); | |
1550 | ||
1551 | return tsf; | |
1552 | } | |
1553 | ||
1554 | static void rt2400pci_reset_tsf(struct ieee80211_hw *hw) | |
1555 | { | |
1556 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1557 | ||
1558 | rt2x00pci_register_write(rt2x00dev, CSR16, 0); | |
1559 | rt2x00pci_register_write(rt2x00dev, CSR17, 0); | |
1560 | } | |
1561 | ||
1562 | static int rt2400pci_tx_last_beacon(struct ieee80211_hw *hw) | |
1563 | { | |
1564 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1565 | u32 reg; | |
1566 | ||
1567 | rt2x00pci_register_read(rt2x00dev, CSR15, ®); | |
1568 | return rt2x00_get_field32(reg, CSR15_BEACON_SENT); | |
1569 | } | |
1570 | ||
1571 | static const struct ieee80211_ops rt2400pci_mac80211_ops = { | |
1572 | .tx = rt2x00mac_tx, | |
4150c572 JB |
1573 | .start = rt2x00mac_start, |
1574 | .stop = rt2x00mac_stop, | |
95ea3627 ID |
1575 | .add_interface = rt2x00mac_add_interface, |
1576 | .remove_interface = rt2x00mac_remove_interface, | |
1577 | .config = rt2x00mac_config, | |
1578 | .config_interface = rt2x00mac_config_interface, | |
4150c572 | 1579 | .configure_filter = rt2400pci_configure_filter, |
95ea3627 ID |
1580 | .get_stats = rt2x00mac_get_stats, |
1581 | .set_retry_limit = rt2400pci_set_retry_limit, | |
5c58ee51 | 1582 | .erp_ie_changed = rt2x00mac_erp_ie_changed, |
95ea3627 ID |
1583 | .conf_tx = rt2400pci_conf_tx, |
1584 | .get_tx_stats = rt2x00mac_get_tx_stats, | |
1585 | .get_tsf = rt2400pci_get_tsf, | |
1586 | .reset_tsf = rt2400pci_reset_tsf, | |
1587 | .beacon_update = rt2x00pci_beacon_update, | |
1588 | .tx_last_beacon = rt2400pci_tx_last_beacon, | |
1589 | }; | |
1590 | ||
1591 | static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = { | |
1592 | .irq_handler = rt2400pci_interrupt, | |
1593 | .probe_hw = rt2400pci_probe_hw, | |
1594 | .initialize = rt2x00pci_initialize, | |
1595 | .uninitialize = rt2x00pci_uninitialize, | |
1596 | .set_device_state = rt2400pci_set_device_state, | |
95ea3627 | 1597 | .rfkill_poll = rt2400pci_rfkill_poll, |
95ea3627 ID |
1598 | .link_stats = rt2400pci_link_stats, |
1599 | .reset_tuner = rt2400pci_reset_tuner, | |
1600 | .link_tuner = rt2400pci_link_tuner, | |
1601 | .write_tx_desc = rt2400pci_write_tx_desc, | |
1602 | .write_tx_data = rt2x00pci_write_tx_data, | |
1603 | .kick_tx_queue = rt2400pci_kick_tx_queue, | |
1604 | .fill_rxdone = rt2400pci_fill_rxdone, | |
1605 | .config_mac_addr = rt2400pci_config_mac_addr, | |
1606 | .config_bssid = rt2400pci_config_bssid, | |
95ea3627 | 1607 | .config_type = rt2400pci_config_type, |
5c58ee51 | 1608 | .config_preamble = rt2400pci_config_preamble, |
95ea3627 ID |
1609 | .config = rt2400pci_config, |
1610 | }; | |
1611 | ||
1612 | static const struct rt2x00_ops rt2400pci_ops = { | |
1613 | .name = DRV_NAME, | |
1614 | .rxd_size = RXD_DESC_SIZE, | |
1615 | .txd_size = TXD_DESC_SIZE, | |
1616 | .eeprom_size = EEPROM_SIZE, | |
1617 | .rf_size = RF_SIZE, | |
1618 | .lib = &rt2400pci_rt2x00_ops, | |
1619 | .hw = &rt2400pci_mac80211_ops, | |
1620 | #ifdef CONFIG_RT2X00_LIB_DEBUGFS | |
1621 | .debugfs = &rt2400pci_rt2x00debug, | |
1622 | #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ | |
1623 | }; | |
1624 | ||
1625 | /* | |
1626 | * RT2400pci module information. | |
1627 | */ | |
1628 | static struct pci_device_id rt2400pci_device_table[] = { | |
1629 | { PCI_DEVICE(0x1814, 0x0101), PCI_DEVICE_DATA(&rt2400pci_ops) }, | |
1630 | { 0, } | |
1631 | }; | |
1632 | ||
1633 | MODULE_AUTHOR(DRV_PROJECT); | |
1634 | MODULE_VERSION(DRV_VERSION); | |
1635 | MODULE_DESCRIPTION("Ralink RT2400 PCI & PCMCIA Wireless LAN driver."); | |
1636 | MODULE_SUPPORTED_DEVICE("Ralink RT2460 PCI & PCMCIA chipset based cards"); | |
1637 | MODULE_DEVICE_TABLE(pci, rt2400pci_device_table); | |
1638 | MODULE_LICENSE("GPL"); | |
1639 | ||
1640 | static struct pci_driver rt2400pci_driver = { | |
1641 | .name = DRV_NAME, | |
1642 | .id_table = rt2400pci_device_table, | |
1643 | .probe = rt2x00pci_probe, | |
1644 | .remove = __devexit_p(rt2x00pci_remove), | |
1645 | .suspend = rt2x00pci_suspend, | |
1646 | .resume = rt2x00pci_resume, | |
1647 | }; | |
1648 | ||
1649 | static int __init rt2400pci_init(void) | |
1650 | { | |
1651 | return pci_register_driver(&rt2400pci_driver); | |
1652 | } | |
1653 | ||
1654 | static void __exit rt2400pci_exit(void) | |
1655 | { | |
1656 | pci_unregister_driver(&rt2400pci_driver); | |
1657 | } | |
1658 | ||
1659 | module_init(rt2400pci_init); | |
1660 | module_exit(rt2400pci_exit); |