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95ea3627 | 1 | /* |
9c9a0d14 | 2 | Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com> |
95ea3627 ID |
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 | ||
95ea3627 ID |
27 | #include <linux/delay.h> |
28 | #include <linux/etherdevice.h> | |
29 | #include <linux/init.h> | |
30 | #include <linux/kernel.h> | |
31 | #include <linux/module.h> | |
32 | #include <linux/pci.h> | |
33 | #include <linux/eeprom_93cx6.h> | |
5a0e3ad6 | 34 | #include <linux/slab.h> |
95ea3627 ID |
35 | |
36 | #include "rt2x00.h" | |
37 | #include "rt2x00pci.h" | |
38 | #include "rt2400pci.h" | |
39 | ||
40 | /* | |
41 | * Register access. | |
42 | * All access to the CSR registers will go through the methods | |
43 | * rt2x00pci_register_read and rt2x00pci_register_write. | |
44 | * BBP and RF register require indirect register access, | |
45 | * and use the CSR registers BBPCSR and RFCSR to achieve this. | |
46 | * These indirect registers work with busy bits, | |
47 | * and we will try maximal REGISTER_BUSY_COUNT times to access | |
48 | * the register while taking a REGISTER_BUSY_DELAY us delay | |
49 | * between each attampt. When the busy bit is still set at that time, | |
50 | * the access attempt is considered to have failed, | |
51 | * and we will print an error. | |
52 | */ | |
c9c3b1a5 ID |
53 | #define WAIT_FOR_BBP(__dev, __reg) \ |
54 | rt2x00pci_regbusy_read((__dev), BBPCSR, BBPCSR_BUSY, (__reg)) | |
55 | #define WAIT_FOR_RF(__dev, __reg) \ | |
56 | rt2x00pci_regbusy_read((__dev), RFCSR, RFCSR_BUSY, (__reg)) | |
95ea3627 | 57 | |
0e14f6d3 | 58 | static void rt2400pci_bbp_write(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
59 | const unsigned int word, const u8 value) |
60 | { | |
61 | u32 reg; | |
62 | ||
8ff48a8b ID |
63 | mutex_lock(&rt2x00dev->csr_mutex); |
64 | ||
95ea3627 | 65 | /* |
c9c3b1a5 ID |
66 | * Wait until the BBP becomes available, afterwards we |
67 | * can safely write the new data into the register. | |
95ea3627 | 68 | */ |
c9c3b1a5 ID |
69 | if (WAIT_FOR_BBP(rt2x00dev, ®)) { |
70 | reg = 0; | |
71 | rt2x00_set_field32(®, BBPCSR_VALUE, value); | |
72 | rt2x00_set_field32(®, BBPCSR_REGNUM, word); | |
73 | rt2x00_set_field32(®, BBPCSR_BUSY, 1); | |
74 | rt2x00_set_field32(®, BBPCSR_WRITE_CONTROL, 1); | |
75 | ||
76 | rt2x00pci_register_write(rt2x00dev, BBPCSR, reg); | |
77 | } | |
8ff48a8b | 78 | |
8ff48a8b | 79 | mutex_unlock(&rt2x00dev->csr_mutex); |
95ea3627 ID |
80 | } |
81 | ||
0e14f6d3 | 82 | static void rt2400pci_bbp_read(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
83 | const unsigned int word, u8 *value) |
84 | { | |
85 | u32 reg; | |
86 | ||
8ff48a8b ID |
87 | mutex_lock(&rt2x00dev->csr_mutex); |
88 | ||
95ea3627 | 89 | /* |
c9c3b1a5 ID |
90 | * Wait until the BBP becomes available, afterwards we |
91 | * can safely write the read request into the register. | |
92 | * After the data has been written, we wait until hardware | |
93 | * returns the correct value, if at any time the register | |
94 | * doesn't become available in time, reg will be 0xffffffff | |
95 | * which means we return 0xff to the caller. | |
95ea3627 | 96 | */ |
c9c3b1a5 ID |
97 | if (WAIT_FOR_BBP(rt2x00dev, ®)) { |
98 | reg = 0; | |
99 | rt2x00_set_field32(®, BBPCSR_REGNUM, word); | |
100 | rt2x00_set_field32(®, BBPCSR_BUSY, 1); | |
101 | rt2x00_set_field32(®, BBPCSR_WRITE_CONTROL, 0); | |
95ea3627 | 102 | |
c9c3b1a5 | 103 | rt2x00pci_register_write(rt2x00dev, BBPCSR, reg); |
95ea3627 | 104 | |
c9c3b1a5 ID |
105 | WAIT_FOR_BBP(rt2x00dev, ®); |
106 | } | |
95ea3627 ID |
107 | |
108 | *value = rt2x00_get_field32(reg, BBPCSR_VALUE); | |
8ff48a8b ID |
109 | |
110 | mutex_unlock(&rt2x00dev->csr_mutex); | |
95ea3627 ID |
111 | } |
112 | ||
0e14f6d3 | 113 | static void rt2400pci_rf_write(struct rt2x00_dev *rt2x00dev, |
95ea3627 ID |
114 | const unsigned int word, const u32 value) |
115 | { | |
116 | u32 reg; | |
95ea3627 | 117 | |
8ff48a8b ID |
118 | mutex_lock(&rt2x00dev->csr_mutex); |
119 | ||
c9c3b1a5 ID |
120 | /* |
121 | * Wait until the RF becomes available, afterwards we | |
122 | * can safely write the new data into the register. | |
123 | */ | |
124 | if (WAIT_FOR_RF(rt2x00dev, ®)) { | |
125 | reg = 0; | |
126 | rt2x00_set_field32(®, RFCSR_VALUE, value); | |
127 | rt2x00_set_field32(®, RFCSR_NUMBER_OF_BITS, 20); | |
128 | rt2x00_set_field32(®, RFCSR_IF_SELECT, 0); | |
129 | rt2x00_set_field32(®, RFCSR_BUSY, 1); | |
130 | ||
131 | rt2x00pci_register_write(rt2x00dev, RFCSR, reg); | |
132 | rt2x00_rf_write(rt2x00dev, word, value); | |
95ea3627 ID |
133 | } |
134 | ||
8ff48a8b | 135 | mutex_unlock(&rt2x00dev->csr_mutex); |
95ea3627 ID |
136 | } |
137 | ||
138 | static void rt2400pci_eepromregister_read(struct eeprom_93cx6 *eeprom) | |
139 | { | |
140 | struct rt2x00_dev *rt2x00dev = eeprom->data; | |
141 | u32 reg; | |
142 | ||
143 | rt2x00pci_register_read(rt2x00dev, CSR21, ®); | |
144 | ||
145 | eeprom->reg_data_in = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_IN); | |
146 | eeprom->reg_data_out = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_OUT); | |
147 | eeprom->reg_data_clock = | |
148 | !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_CLOCK); | |
149 | eeprom->reg_chip_select = | |
150 | !!rt2x00_get_field32(reg, CSR21_EEPROM_CHIP_SELECT); | |
151 | } | |
152 | ||
153 | static void rt2400pci_eepromregister_write(struct eeprom_93cx6 *eeprom) | |
154 | { | |
155 | struct rt2x00_dev *rt2x00dev = eeprom->data; | |
156 | u32 reg = 0; | |
157 | ||
158 | rt2x00_set_field32(®, CSR21_EEPROM_DATA_IN, !!eeprom->reg_data_in); | |
159 | rt2x00_set_field32(®, CSR21_EEPROM_DATA_OUT, !!eeprom->reg_data_out); | |
160 | rt2x00_set_field32(®, CSR21_EEPROM_DATA_CLOCK, | |
161 | !!eeprom->reg_data_clock); | |
162 | rt2x00_set_field32(®, CSR21_EEPROM_CHIP_SELECT, | |
163 | !!eeprom->reg_chip_select); | |
164 | ||
165 | rt2x00pci_register_write(rt2x00dev, CSR21, reg); | |
166 | } | |
167 | ||
168 | #ifdef CONFIG_RT2X00_LIB_DEBUGFS | |
95ea3627 ID |
169 | static const struct rt2x00debug rt2400pci_rt2x00debug = { |
170 | .owner = THIS_MODULE, | |
171 | .csr = { | |
743b97ca ID |
172 | .read = rt2x00pci_register_read, |
173 | .write = rt2x00pci_register_write, | |
174 | .flags = RT2X00DEBUGFS_OFFSET, | |
175 | .word_base = CSR_REG_BASE, | |
95ea3627 ID |
176 | .word_size = sizeof(u32), |
177 | .word_count = CSR_REG_SIZE / sizeof(u32), | |
178 | }, | |
179 | .eeprom = { | |
180 | .read = rt2x00_eeprom_read, | |
181 | .write = rt2x00_eeprom_write, | |
743b97ca | 182 | .word_base = EEPROM_BASE, |
95ea3627 ID |
183 | .word_size = sizeof(u16), |
184 | .word_count = EEPROM_SIZE / sizeof(u16), | |
185 | }, | |
186 | .bbp = { | |
187 | .read = rt2400pci_bbp_read, | |
188 | .write = rt2400pci_bbp_write, | |
743b97ca | 189 | .word_base = BBP_BASE, |
95ea3627 ID |
190 | .word_size = sizeof(u8), |
191 | .word_count = BBP_SIZE / sizeof(u8), | |
192 | }, | |
193 | .rf = { | |
194 | .read = rt2x00_rf_read, | |
195 | .write = rt2400pci_rf_write, | |
743b97ca | 196 | .word_base = RF_BASE, |
95ea3627 ID |
197 | .word_size = sizeof(u32), |
198 | .word_count = RF_SIZE / sizeof(u32), | |
199 | }, | |
200 | }; | |
201 | #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ | |
202 | ||
95ea3627 ID |
203 | static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) |
204 | { | |
205 | u32 reg; | |
206 | ||
207 | rt2x00pci_register_read(rt2x00dev, GPIOCSR, ®); | |
208 | return rt2x00_get_field32(reg, GPIOCSR_BIT0); | |
209 | } | |
95ea3627 | 210 | |
771fd565 | 211 | #ifdef CONFIG_RT2X00_LIB_LEDS |
a2e1d52a | 212 | static void rt2400pci_brightness_set(struct led_classdev *led_cdev, |
a9450b70 ID |
213 | enum led_brightness brightness) |
214 | { | |
215 | struct rt2x00_led *led = | |
216 | container_of(led_cdev, struct rt2x00_led, led_dev); | |
217 | unsigned int enabled = brightness != LED_OFF; | |
a9450b70 ID |
218 | u32 reg; |
219 | ||
220 | rt2x00pci_register_read(led->rt2x00dev, LEDCSR, ®); | |
221 | ||
a2e1d52a | 222 | if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC) |
a9450b70 | 223 | rt2x00_set_field32(®, LEDCSR_LINK, enabled); |
a2e1d52a ID |
224 | else if (led->type == LED_TYPE_ACTIVITY) |
225 | rt2x00_set_field32(®, LEDCSR_ACTIVITY, enabled); | |
a9450b70 ID |
226 | |
227 | rt2x00pci_register_write(led->rt2x00dev, LEDCSR, reg); | |
228 | } | |
a2e1d52a ID |
229 | |
230 | static int rt2400pci_blink_set(struct led_classdev *led_cdev, | |
231 | unsigned long *delay_on, | |
232 | unsigned long *delay_off) | |
233 | { | |
234 | struct rt2x00_led *led = | |
235 | container_of(led_cdev, struct rt2x00_led, led_dev); | |
236 | u32 reg; | |
237 | ||
238 | rt2x00pci_register_read(led->rt2x00dev, LEDCSR, ®); | |
239 | rt2x00_set_field32(®, LEDCSR_ON_PERIOD, *delay_on); | |
240 | rt2x00_set_field32(®, LEDCSR_OFF_PERIOD, *delay_off); | |
241 | rt2x00pci_register_write(led->rt2x00dev, LEDCSR, reg); | |
242 | ||
243 | return 0; | |
244 | } | |
475433be ID |
245 | |
246 | static void rt2400pci_init_led(struct rt2x00_dev *rt2x00dev, | |
247 | struct rt2x00_led *led, | |
248 | enum led_type type) | |
249 | { | |
250 | led->rt2x00dev = rt2x00dev; | |
251 | led->type = type; | |
252 | led->led_dev.brightness_set = rt2400pci_brightness_set; | |
253 | led->led_dev.blink_set = rt2400pci_blink_set; | |
254 | led->flags = LED_INITIALIZED; | |
255 | } | |
771fd565 | 256 | #endif /* CONFIG_RT2X00_LIB_LEDS */ |
a9450b70 | 257 | |
95ea3627 ID |
258 | /* |
259 | * Configuration handlers. | |
260 | */ | |
3a643d24 ID |
261 | static void rt2400pci_config_filter(struct rt2x00_dev *rt2x00dev, |
262 | const unsigned int filter_flags) | |
263 | { | |
264 | u32 reg; | |
265 | ||
266 | /* | |
267 | * Start configuration steps. | |
268 | * Note that the version error will always be dropped | |
269 | * since there is no filter for it at this time. | |
270 | */ | |
271 | rt2x00pci_register_read(rt2x00dev, RXCSR0, ®); | |
272 | rt2x00_set_field32(®, RXCSR0_DROP_CRC, | |
273 | !(filter_flags & FIF_FCSFAIL)); | |
274 | rt2x00_set_field32(®, RXCSR0_DROP_PHYSICAL, | |
275 | !(filter_flags & FIF_PLCPFAIL)); | |
276 | rt2x00_set_field32(®, RXCSR0_DROP_CONTROL, | |
277 | !(filter_flags & FIF_CONTROL)); | |
278 | rt2x00_set_field32(®, RXCSR0_DROP_NOT_TO_ME, | |
279 | !(filter_flags & FIF_PROMISC_IN_BSS)); | |
280 | rt2x00_set_field32(®, RXCSR0_DROP_TODS, | |
e0b005fa ID |
281 | !(filter_flags & FIF_PROMISC_IN_BSS) && |
282 | !rt2x00dev->intf_ap_count); | |
3a643d24 ID |
283 | rt2x00_set_field32(®, RXCSR0_DROP_VERSION_ERROR, 1); |
284 | rt2x00pci_register_write(rt2x00dev, RXCSR0, reg); | |
285 | } | |
286 | ||
6bb40dd1 ID |
287 | static void rt2400pci_config_intf(struct rt2x00_dev *rt2x00dev, |
288 | struct rt2x00_intf *intf, | |
289 | struct rt2x00intf_conf *conf, | |
290 | const unsigned int flags) | |
95ea3627 | 291 | { |
6bb40dd1 ID |
292 | unsigned int bcn_preload; |
293 | u32 reg; | |
95ea3627 | 294 | |
6bb40dd1 | 295 | if (flags & CONFIG_UPDATE_TYPE) { |
6bb40dd1 ID |
296 | /* |
297 | * Enable beacon config | |
298 | */ | |
bad13639 | 299 | bcn_preload = PREAMBLE + GET_DURATION(IEEE80211_HEADER, 20); |
6bb40dd1 ID |
300 | rt2x00pci_register_read(rt2x00dev, BCNCSR1, ®); |
301 | rt2x00_set_field32(®, BCNCSR1_PRELOAD, bcn_preload); | |
302 | rt2x00pci_register_write(rt2x00dev, BCNCSR1, reg); | |
95ea3627 | 303 | |
6bb40dd1 ID |
304 | /* |
305 | * Enable synchronisation. | |
306 | */ | |
307 | rt2x00pci_register_read(rt2x00dev, CSR14, ®); | |
fd3c91c5 | 308 | rt2x00_set_field32(®, CSR14_TSF_COUNT, 1); |
6bb40dd1 | 309 | rt2x00_set_field32(®, CSR14_TSF_SYNC, conf->sync); |
fd3c91c5 | 310 | rt2x00_set_field32(®, CSR14_TBCN, 1); |
6bb40dd1 ID |
311 | rt2x00pci_register_write(rt2x00dev, CSR14, reg); |
312 | } | |
95ea3627 | 313 | |
6bb40dd1 ID |
314 | if (flags & CONFIG_UPDATE_MAC) |
315 | rt2x00pci_register_multiwrite(rt2x00dev, CSR3, | |
316 | conf->mac, sizeof(conf->mac)); | |
95ea3627 | 317 | |
6bb40dd1 ID |
318 | if (flags & CONFIG_UPDATE_BSSID) |
319 | rt2x00pci_register_multiwrite(rt2x00dev, CSR5, | |
320 | conf->bssid, sizeof(conf->bssid)); | |
95ea3627 ID |
321 | } |
322 | ||
3a643d24 ID |
323 | static void rt2400pci_config_erp(struct rt2x00_dev *rt2x00dev, |
324 | struct rt2x00lib_erp *erp) | |
95ea3627 | 325 | { |
5c58ee51 | 326 | int preamble_mask; |
95ea3627 | 327 | u32 reg; |
95ea3627 | 328 | |
5c58ee51 ID |
329 | /* |
330 | * When short preamble is enabled, we should set bit 0x08 | |
331 | */ | |
72810379 | 332 | preamble_mask = erp->short_preamble << 3; |
95ea3627 ID |
333 | |
334 | rt2x00pci_register_read(rt2x00dev, TXCSR1, ®); | |
4789666e ID |
335 | rt2x00_set_field32(®, TXCSR1_ACK_TIMEOUT, 0x1ff); |
336 | rt2x00_set_field32(®, TXCSR1_ACK_CONSUME_TIME, 0x13a); | |
8a566afe ID |
337 | rt2x00_set_field32(®, TXCSR1_TSF_OFFSET, IEEE80211_HEADER); |
338 | rt2x00_set_field32(®, TXCSR1_AUTORESPONDER, 1); | |
95ea3627 ID |
339 | rt2x00pci_register_write(rt2x00dev, TXCSR1, reg); |
340 | ||
95ea3627 | 341 | rt2x00pci_register_read(rt2x00dev, ARCSR2, ®); |
44a9809b | 342 | rt2x00_set_field32(®, ARCSR2_SIGNAL, 0x00); |
95ea3627 | 343 | rt2x00_set_field32(®, ARCSR2_SERVICE, 0x04); |
bad13639 | 344 | rt2x00_set_field32(®, ARCSR2_LENGTH, GET_DURATION(ACK_SIZE, 10)); |
95ea3627 ID |
345 | rt2x00pci_register_write(rt2x00dev, ARCSR2, reg); |
346 | ||
347 | rt2x00pci_register_read(rt2x00dev, ARCSR3, ®); | |
5c58ee51 | 348 | rt2x00_set_field32(®, ARCSR3_SIGNAL, 0x01 | preamble_mask); |
95ea3627 | 349 | rt2x00_set_field32(®, ARCSR3_SERVICE, 0x04); |
bad13639 | 350 | rt2x00_set_field32(®, ARCSR2_LENGTH, GET_DURATION(ACK_SIZE, 20)); |
95ea3627 ID |
351 | rt2x00pci_register_write(rt2x00dev, ARCSR3, reg); |
352 | ||
353 | rt2x00pci_register_read(rt2x00dev, ARCSR4, ®); | |
5c58ee51 | 354 | rt2x00_set_field32(®, ARCSR4_SIGNAL, 0x02 | preamble_mask); |
95ea3627 | 355 | rt2x00_set_field32(®, ARCSR4_SERVICE, 0x04); |
bad13639 | 356 | rt2x00_set_field32(®, ARCSR2_LENGTH, GET_DURATION(ACK_SIZE, 55)); |
95ea3627 ID |
357 | rt2x00pci_register_write(rt2x00dev, ARCSR4, reg); |
358 | ||
359 | rt2x00pci_register_read(rt2x00dev, ARCSR5, ®); | |
5c58ee51 | 360 | rt2x00_set_field32(®, ARCSR5_SIGNAL, 0x03 | preamble_mask); |
95ea3627 | 361 | rt2x00_set_field32(®, ARCSR5_SERVICE, 0x84); |
bad13639 | 362 | rt2x00_set_field32(®, ARCSR2_LENGTH, GET_DURATION(ACK_SIZE, 110)); |
95ea3627 | 363 | rt2x00pci_register_write(rt2x00dev, ARCSR5, reg); |
e4ea1c40 ID |
364 | |
365 | rt2x00pci_register_write(rt2x00dev, ARCSR1, erp->basic_rates); | |
366 | ||
367 | rt2x00pci_register_read(rt2x00dev, CSR11, ®); | |
368 | rt2x00_set_field32(®, CSR11_SLOT_TIME, erp->slot_time); | |
369 | rt2x00pci_register_write(rt2x00dev, CSR11, reg); | |
370 | ||
8a566afe ID |
371 | rt2x00pci_register_read(rt2x00dev, CSR12, ®); |
372 | rt2x00_set_field32(®, CSR12_BEACON_INTERVAL, erp->beacon_int * 16); | |
373 | rt2x00_set_field32(®, CSR12_CFP_MAX_DURATION, erp->beacon_int * 16); | |
374 | rt2x00pci_register_write(rt2x00dev, CSR12, reg); | |
375 | ||
e4ea1c40 ID |
376 | rt2x00pci_register_read(rt2x00dev, CSR18, ®); |
377 | rt2x00_set_field32(®, CSR18_SIFS, erp->sifs); | |
378 | rt2x00_set_field32(®, CSR18_PIFS, erp->pifs); | |
379 | rt2x00pci_register_write(rt2x00dev, CSR18, reg); | |
380 | ||
381 | rt2x00pci_register_read(rt2x00dev, CSR19, ®); | |
382 | rt2x00_set_field32(®, CSR19_DIFS, erp->difs); | |
383 | rt2x00_set_field32(®, CSR19_EIFS, erp->eifs); | |
384 | rt2x00pci_register_write(rt2x00dev, CSR19, reg); | |
95ea3627 ID |
385 | } |
386 | ||
e4ea1c40 ID |
387 | static void rt2400pci_config_ant(struct rt2x00_dev *rt2x00dev, |
388 | struct antenna_setup *ant) | |
95ea3627 | 389 | { |
e4ea1c40 ID |
390 | u8 r1; |
391 | u8 r4; | |
392 | ||
393 | /* | |
394 | * We should never come here because rt2x00lib is supposed | |
395 | * to catch this and send us the correct antenna explicitely. | |
396 | */ | |
397 | BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY || | |
398 | ant->tx == ANTENNA_SW_DIVERSITY); | |
399 | ||
400 | rt2400pci_bbp_read(rt2x00dev, 4, &r4); | |
401 | rt2400pci_bbp_read(rt2x00dev, 1, &r1); | |
402 | ||
403 | /* | |
404 | * Configure the TX antenna. | |
405 | */ | |
406 | switch (ant->tx) { | |
407 | case ANTENNA_HW_DIVERSITY: | |
408 | rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 1); | |
409 | break; | |
410 | case ANTENNA_A: | |
411 | rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 0); | |
412 | break; | |
413 | case ANTENNA_B: | |
414 | default: | |
415 | rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 2); | |
416 | break; | |
417 | } | |
418 | ||
419 | /* | |
420 | * Configure the RX antenna. | |
421 | */ | |
422 | switch (ant->rx) { | |
423 | case ANTENNA_HW_DIVERSITY: | |
424 | rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1); | |
425 | break; | |
426 | case ANTENNA_A: | |
427 | rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 0); | |
428 | break; | |
429 | case ANTENNA_B: | |
430 | default: | |
431 | rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2); | |
432 | break; | |
433 | } | |
434 | ||
435 | rt2400pci_bbp_write(rt2x00dev, 4, r4); | |
436 | rt2400pci_bbp_write(rt2x00dev, 1, r1); | |
95ea3627 ID |
437 | } |
438 | ||
439 | static void rt2400pci_config_channel(struct rt2x00_dev *rt2x00dev, | |
5c58ee51 | 440 | struct rf_channel *rf) |
95ea3627 | 441 | { |
95ea3627 ID |
442 | /* |
443 | * Switch on tuning bits. | |
444 | */ | |
5c58ee51 ID |
445 | rt2x00_set_field32(&rf->rf1, RF1_TUNER, 1); |
446 | rt2x00_set_field32(&rf->rf3, RF3_TUNER, 1); | |
95ea3627 | 447 | |
5c58ee51 ID |
448 | rt2400pci_rf_write(rt2x00dev, 1, rf->rf1); |
449 | rt2400pci_rf_write(rt2x00dev, 2, rf->rf2); | |
450 | rt2400pci_rf_write(rt2x00dev, 3, rf->rf3); | |
95ea3627 ID |
451 | |
452 | /* | |
453 | * RF2420 chipset don't need any additional actions. | |
454 | */ | |
5122d898 | 455 | if (rt2x00_rf(rt2x00dev, RF2420)) |
95ea3627 ID |
456 | return; |
457 | ||
458 | /* | |
459 | * For the RT2421 chipsets we need to write an invalid | |
460 | * reference clock rate to activate auto_tune. | |
461 | * After that we set the value back to the correct channel. | |
462 | */ | |
5c58ee51 | 463 | rt2400pci_rf_write(rt2x00dev, 1, rf->rf1); |
95ea3627 | 464 | rt2400pci_rf_write(rt2x00dev, 2, 0x000c2a32); |
5c58ee51 | 465 | rt2400pci_rf_write(rt2x00dev, 3, rf->rf3); |
95ea3627 ID |
466 | |
467 | msleep(1); | |
468 | ||
5c58ee51 ID |
469 | rt2400pci_rf_write(rt2x00dev, 1, rf->rf1); |
470 | rt2400pci_rf_write(rt2x00dev, 2, rf->rf2); | |
471 | rt2400pci_rf_write(rt2x00dev, 3, rf->rf3); | |
95ea3627 ID |
472 | |
473 | msleep(1); | |
474 | ||
475 | /* | |
476 | * Switch off tuning bits. | |
477 | */ | |
5c58ee51 ID |
478 | rt2x00_set_field32(&rf->rf1, RF1_TUNER, 0); |
479 | rt2x00_set_field32(&rf->rf3, RF3_TUNER, 0); | |
95ea3627 | 480 | |
5c58ee51 ID |
481 | rt2400pci_rf_write(rt2x00dev, 1, rf->rf1); |
482 | rt2400pci_rf_write(rt2x00dev, 3, rf->rf3); | |
95ea3627 ID |
483 | |
484 | /* | |
485 | * Clear false CRC during channel switch. | |
486 | */ | |
5c58ee51 | 487 | rt2x00pci_register_read(rt2x00dev, CNT0, &rf->rf1); |
95ea3627 ID |
488 | } |
489 | ||
490 | static void rt2400pci_config_txpower(struct rt2x00_dev *rt2x00dev, int txpower) | |
491 | { | |
492 | rt2400pci_bbp_write(rt2x00dev, 3, TXPOWER_TO_DEV(txpower)); | |
493 | } | |
494 | ||
e4ea1c40 ID |
495 | static void rt2400pci_config_retry_limit(struct rt2x00_dev *rt2x00dev, |
496 | struct rt2x00lib_conf *libconf) | |
95ea3627 | 497 | { |
e4ea1c40 | 498 | u32 reg; |
95ea3627 | 499 | |
e4ea1c40 ID |
500 | rt2x00pci_register_read(rt2x00dev, CSR11, ®); |
501 | rt2x00_set_field32(®, CSR11_LONG_RETRY, | |
502 | libconf->conf->long_frame_max_tx_count); | |
503 | rt2x00_set_field32(®, CSR11_SHORT_RETRY, | |
504 | libconf->conf->short_frame_max_tx_count); | |
505 | rt2x00pci_register_write(rt2x00dev, CSR11, reg); | |
95ea3627 ID |
506 | } |
507 | ||
7d7f19cc ID |
508 | static void rt2400pci_config_ps(struct rt2x00_dev *rt2x00dev, |
509 | struct rt2x00lib_conf *libconf) | |
510 | { | |
511 | enum dev_state state = | |
512 | (libconf->conf->flags & IEEE80211_CONF_PS) ? | |
513 | STATE_SLEEP : STATE_AWAKE; | |
514 | u32 reg; | |
515 | ||
516 | if (state == STATE_SLEEP) { | |
517 | rt2x00pci_register_read(rt2x00dev, CSR20, ®); | |
518 | rt2x00_set_field32(®, CSR20_DELAY_AFTER_TBCN, | |
6b347bff | 519 | (rt2x00dev->beacon_int - 20) * 16); |
7d7f19cc ID |
520 | rt2x00_set_field32(®, CSR20_TBCN_BEFORE_WAKEUP, |
521 | libconf->conf->listen_interval - 1); | |
522 | ||
523 | /* We must first disable autowake before it can be enabled */ | |
524 | rt2x00_set_field32(®, CSR20_AUTOWAKE, 0); | |
525 | rt2x00pci_register_write(rt2x00dev, CSR20, reg); | |
526 | ||
527 | rt2x00_set_field32(®, CSR20_AUTOWAKE, 1); | |
528 | rt2x00pci_register_write(rt2x00dev, CSR20, reg); | |
529 | } | |
530 | ||
531 | rt2x00dev->ops->lib->set_device_state(rt2x00dev, state); | |
532 | } | |
533 | ||
95ea3627 | 534 | static void rt2400pci_config(struct rt2x00_dev *rt2x00dev, |
6bb40dd1 ID |
535 | struct rt2x00lib_conf *libconf, |
536 | const unsigned int flags) | |
95ea3627 | 537 | { |
e4ea1c40 | 538 | if (flags & IEEE80211_CONF_CHANGE_CHANNEL) |
5c58ee51 | 539 | rt2400pci_config_channel(rt2x00dev, &libconf->rf); |
e4ea1c40 | 540 | if (flags & IEEE80211_CONF_CHANGE_POWER) |
5c58ee51 ID |
541 | rt2400pci_config_txpower(rt2x00dev, |
542 | libconf->conf->power_level); | |
e4ea1c40 ID |
543 | if (flags & IEEE80211_CONF_CHANGE_RETRY_LIMITS) |
544 | rt2400pci_config_retry_limit(rt2x00dev, libconf); | |
7d7f19cc ID |
545 | if (flags & IEEE80211_CONF_CHANGE_PS) |
546 | rt2400pci_config_ps(rt2x00dev, libconf); | |
95ea3627 ID |
547 | } |
548 | ||
549 | static void rt2400pci_config_cw(struct rt2x00_dev *rt2x00dev, | |
181d6902 | 550 | const int cw_min, const int cw_max) |
95ea3627 ID |
551 | { |
552 | u32 reg; | |
553 | ||
554 | rt2x00pci_register_read(rt2x00dev, CSR11, ®); | |
181d6902 ID |
555 | rt2x00_set_field32(®, CSR11_CWMIN, cw_min); |
556 | rt2x00_set_field32(®, CSR11_CWMAX, cw_max); | |
95ea3627 ID |
557 | rt2x00pci_register_write(rt2x00dev, CSR11, reg); |
558 | } | |
559 | ||
95ea3627 ID |
560 | /* |
561 | * Link tuning | |
562 | */ | |
ebcf26da ID |
563 | static void rt2400pci_link_stats(struct rt2x00_dev *rt2x00dev, |
564 | struct link_qual *qual) | |
95ea3627 ID |
565 | { |
566 | u32 reg; | |
567 | u8 bbp; | |
568 | ||
569 | /* | |
570 | * Update FCS error count from register. | |
571 | */ | |
572 | rt2x00pci_register_read(rt2x00dev, CNT0, ®); | |
ebcf26da | 573 | qual->rx_failed = rt2x00_get_field32(reg, CNT0_FCS_ERROR); |
95ea3627 ID |
574 | |
575 | /* | |
576 | * Update False CCA count from register. | |
577 | */ | |
578 | rt2400pci_bbp_read(rt2x00dev, 39, &bbp); | |
ebcf26da | 579 | qual->false_cca = bbp; |
95ea3627 ID |
580 | } |
581 | ||
5352ff65 ID |
582 | static inline void rt2400pci_set_vgc(struct rt2x00_dev *rt2x00dev, |
583 | struct link_qual *qual, u8 vgc_level) | |
eb20b4e8 ID |
584 | { |
585 | rt2400pci_bbp_write(rt2x00dev, 13, vgc_level); | |
5352ff65 ID |
586 | qual->vgc_level = vgc_level; |
587 | qual->vgc_level_reg = vgc_level; | |
eb20b4e8 ID |
588 | } |
589 | ||
5352ff65 ID |
590 | static void rt2400pci_reset_tuner(struct rt2x00_dev *rt2x00dev, |
591 | struct link_qual *qual) | |
95ea3627 | 592 | { |
5352ff65 | 593 | rt2400pci_set_vgc(rt2x00dev, qual, 0x08); |
95ea3627 ID |
594 | } |
595 | ||
5352ff65 ID |
596 | static void rt2400pci_link_tuner(struct rt2x00_dev *rt2x00dev, |
597 | struct link_qual *qual, const u32 count) | |
95ea3627 | 598 | { |
95ea3627 ID |
599 | /* |
600 | * The link tuner should not run longer then 60 seconds, | |
601 | * and should run once every 2 seconds. | |
602 | */ | |
5352ff65 | 603 | if (count > 60 || !(count & 1)) |
95ea3627 ID |
604 | return; |
605 | ||
606 | /* | |
607 | * Base r13 link tuning on the false cca count. | |
608 | */ | |
5352ff65 ID |
609 | if ((qual->false_cca > 512) && (qual->vgc_level < 0x20)) |
610 | rt2400pci_set_vgc(rt2x00dev, qual, ++qual->vgc_level); | |
611 | else if ((qual->false_cca < 100) && (qual->vgc_level > 0x08)) | |
612 | rt2400pci_set_vgc(rt2x00dev, qual, --qual->vgc_level); | |
95ea3627 ID |
613 | } |
614 | ||
615 | /* | |
616 | * Initialization functions. | |
617 | */ | |
798b7adb | 618 | static bool rt2400pci_get_entry_state(struct queue_entry *entry) |
95ea3627 | 619 | { |
b8be63ff | 620 | struct queue_entry_priv_pci *entry_priv = entry->priv_data; |
95ea3627 ID |
621 | u32 word; |
622 | ||
798b7adb ID |
623 | if (entry->queue->qid == QID_RX) { |
624 | rt2x00_desc_read(entry_priv->desc, 0, &word); | |
95ea3627 | 625 | |
798b7adb ID |
626 | return rt2x00_get_field32(word, RXD_W0_OWNER_NIC); |
627 | } else { | |
628 | rt2x00_desc_read(entry_priv->desc, 0, &word); | |
95ea3627 | 629 | |
798b7adb ID |
630 | return (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) || |
631 | rt2x00_get_field32(word, TXD_W0_VALID)); | |
632 | } | |
95ea3627 ID |
633 | } |
634 | ||
798b7adb | 635 | static void rt2400pci_clear_entry(struct queue_entry *entry) |
95ea3627 | 636 | { |
b8be63ff | 637 | struct queue_entry_priv_pci *entry_priv = entry->priv_data; |
798b7adb | 638 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); |
95ea3627 ID |
639 | u32 word; |
640 | ||
798b7adb ID |
641 | if (entry->queue->qid == QID_RX) { |
642 | rt2x00_desc_read(entry_priv->desc, 2, &word); | |
643 | rt2x00_set_field32(&word, RXD_W2_BUFFER_LENGTH, entry->skb->len); | |
644 | rt2x00_desc_write(entry_priv->desc, 2, word); | |
645 | ||
646 | rt2x00_desc_read(entry_priv->desc, 1, &word); | |
647 | rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma); | |
648 | rt2x00_desc_write(entry_priv->desc, 1, word); | |
649 | ||
650 | rt2x00_desc_read(entry_priv->desc, 0, &word); | |
651 | rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1); | |
652 | rt2x00_desc_write(entry_priv->desc, 0, word); | |
653 | } else { | |
654 | rt2x00_desc_read(entry_priv->desc, 0, &word); | |
655 | rt2x00_set_field32(&word, TXD_W0_VALID, 0); | |
656 | rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0); | |
657 | rt2x00_desc_write(entry_priv->desc, 0, word); | |
658 | } | |
95ea3627 ID |
659 | } |
660 | ||
181d6902 | 661 | static int rt2400pci_init_queues(struct rt2x00_dev *rt2x00dev) |
95ea3627 | 662 | { |
b8be63ff | 663 | struct queue_entry_priv_pci *entry_priv; |
95ea3627 ID |
664 | u32 reg; |
665 | ||
95ea3627 ID |
666 | /* |
667 | * Initialize registers. | |
668 | */ | |
669 | rt2x00pci_register_read(rt2x00dev, TXCSR2, ®); | |
181d6902 ID |
670 | rt2x00_set_field32(®, TXCSR2_TXD_SIZE, rt2x00dev->tx[0].desc_size); |
671 | rt2x00_set_field32(®, TXCSR2_NUM_TXD, rt2x00dev->tx[1].limit); | |
672 | rt2x00_set_field32(®, TXCSR2_NUM_ATIM, rt2x00dev->bcn[1].limit); | |
673 | rt2x00_set_field32(®, TXCSR2_NUM_PRIO, rt2x00dev->tx[0].limit); | |
95ea3627 ID |
674 | rt2x00pci_register_write(rt2x00dev, TXCSR2, reg); |
675 | ||
b8be63ff | 676 | entry_priv = rt2x00dev->tx[1].entries[0].priv_data; |
95ea3627 | 677 | rt2x00pci_register_read(rt2x00dev, TXCSR3, ®); |
30b3a23c | 678 | rt2x00_set_field32(®, TXCSR3_TX_RING_REGISTER, |
b8be63ff | 679 | entry_priv->desc_dma); |
95ea3627 ID |
680 | rt2x00pci_register_write(rt2x00dev, TXCSR3, reg); |
681 | ||
b8be63ff | 682 | entry_priv = rt2x00dev->tx[0].entries[0].priv_data; |
95ea3627 | 683 | rt2x00pci_register_read(rt2x00dev, TXCSR5, ®); |
30b3a23c | 684 | rt2x00_set_field32(®, TXCSR5_PRIO_RING_REGISTER, |
b8be63ff | 685 | entry_priv->desc_dma); |
95ea3627 ID |
686 | rt2x00pci_register_write(rt2x00dev, TXCSR5, reg); |
687 | ||
b8be63ff | 688 | entry_priv = rt2x00dev->bcn[1].entries[0].priv_data; |
95ea3627 | 689 | rt2x00pci_register_read(rt2x00dev, TXCSR4, ®); |
30b3a23c | 690 | rt2x00_set_field32(®, TXCSR4_ATIM_RING_REGISTER, |
b8be63ff | 691 | entry_priv->desc_dma); |
95ea3627 ID |
692 | rt2x00pci_register_write(rt2x00dev, TXCSR4, reg); |
693 | ||
b8be63ff | 694 | entry_priv = rt2x00dev->bcn[0].entries[0].priv_data; |
95ea3627 | 695 | rt2x00pci_register_read(rt2x00dev, TXCSR6, ®); |
30b3a23c | 696 | rt2x00_set_field32(®, TXCSR6_BEACON_RING_REGISTER, |
b8be63ff | 697 | entry_priv->desc_dma); |
95ea3627 ID |
698 | rt2x00pci_register_write(rt2x00dev, TXCSR6, reg); |
699 | ||
700 | rt2x00pci_register_read(rt2x00dev, RXCSR1, ®); | |
701 | rt2x00_set_field32(®, RXCSR1_RXD_SIZE, rt2x00dev->rx->desc_size); | |
181d6902 | 702 | rt2x00_set_field32(®, RXCSR1_NUM_RXD, rt2x00dev->rx->limit); |
95ea3627 ID |
703 | rt2x00pci_register_write(rt2x00dev, RXCSR1, reg); |
704 | ||
b8be63ff | 705 | entry_priv = rt2x00dev->rx->entries[0].priv_data; |
95ea3627 | 706 | rt2x00pci_register_read(rt2x00dev, RXCSR2, ®); |
b8be63ff ID |
707 | rt2x00_set_field32(®, RXCSR2_RX_RING_REGISTER, |
708 | entry_priv->desc_dma); | |
95ea3627 ID |
709 | rt2x00pci_register_write(rt2x00dev, RXCSR2, reg); |
710 | ||
711 | return 0; | |
712 | } | |
713 | ||
714 | static int rt2400pci_init_registers(struct rt2x00_dev *rt2x00dev) | |
715 | { | |
716 | u32 reg; | |
717 | ||
718 | rt2x00pci_register_write(rt2x00dev, PSCSR0, 0x00020002); | |
719 | rt2x00pci_register_write(rt2x00dev, PSCSR1, 0x00000002); | |
720 | rt2x00pci_register_write(rt2x00dev, PSCSR2, 0x00023f20); | |
721 | rt2x00pci_register_write(rt2x00dev, PSCSR3, 0x00000002); | |
722 | ||
723 | rt2x00pci_register_read(rt2x00dev, TIMECSR, ®); | |
724 | rt2x00_set_field32(®, TIMECSR_US_COUNT, 33); | |
725 | rt2x00_set_field32(®, TIMECSR_US_64_COUNT, 63); | |
726 | rt2x00_set_field32(®, TIMECSR_BEACON_EXPECT, 0); | |
727 | rt2x00pci_register_write(rt2x00dev, TIMECSR, reg); | |
728 | ||
729 | rt2x00pci_register_read(rt2x00dev, CSR9, ®); | |
730 | rt2x00_set_field32(®, CSR9_MAX_FRAME_UNIT, | |
731 | (rt2x00dev->rx->data_size / 128)); | |
732 | rt2x00pci_register_write(rt2x00dev, CSR9, reg); | |
733 | ||
1f909162 ID |
734 | rt2x00pci_register_read(rt2x00dev, CSR14, ®); |
735 | rt2x00_set_field32(®, CSR14_TSF_COUNT, 0); | |
736 | rt2x00_set_field32(®, CSR14_TSF_SYNC, 0); | |
737 | rt2x00_set_field32(®, CSR14_TBCN, 0); | |
738 | rt2x00_set_field32(®, CSR14_TCFP, 0); | |
739 | rt2x00_set_field32(®, CSR14_TATIMW, 0); | |
740 | rt2x00_set_field32(®, CSR14_BEACON_GEN, 0); | |
741 | rt2x00_set_field32(®, CSR14_CFP_COUNT_PRELOAD, 0); | |
742 | rt2x00_set_field32(®, CSR14_TBCM_PRELOAD, 0); | |
743 | rt2x00pci_register_write(rt2x00dev, CSR14, reg); | |
744 | ||
95ea3627 ID |
745 | rt2x00pci_register_write(rt2x00dev, CNT3, 0x3f080000); |
746 | ||
747 | rt2x00pci_register_read(rt2x00dev, ARCSR0, ®); | |
748 | rt2x00_set_field32(®, ARCSR0_AR_BBP_DATA0, 133); | |
749 | rt2x00_set_field32(®, ARCSR0_AR_BBP_ID0, 134); | |
750 | rt2x00_set_field32(®, ARCSR0_AR_BBP_DATA1, 136); | |
751 | rt2x00_set_field32(®, ARCSR0_AR_BBP_ID1, 135); | |
752 | rt2x00pci_register_write(rt2x00dev, ARCSR0, reg); | |
753 | ||
754 | rt2x00pci_register_read(rt2x00dev, RXCSR3, ®); | |
755 | rt2x00_set_field32(®, RXCSR3_BBP_ID0, 3); /* Tx power.*/ | |
756 | rt2x00_set_field32(®, RXCSR3_BBP_ID0_VALID, 1); | |
757 | rt2x00_set_field32(®, RXCSR3_BBP_ID1, 32); /* Signal */ | |
758 | rt2x00_set_field32(®, RXCSR3_BBP_ID1_VALID, 1); | |
759 | rt2x00_set_field32(®, RXCSR3_BBP_ID2, 36); /* Rssi */ | |
760 | rt2x00_set_field32(®, RXCSR3_BBP_ID2_VALID, 1); | |
761 | rt2x00pci_register_write(rt2x00dev, RXCSR3, reg); | |
762 | ||
763 | rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0x3f3b3100); | |
764 | ||
765 | if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE)) | |
766 | return -EBUSY; | |
767 | ||
768 | rt2x00pci_register_write(rt2x00dev, MACCSR0, 0x00217223); | |
769 | rt2x00pci_register_write(rt2x00dev, MACCSR1, 0x00235518); | |
770 | ||
771 | rt2x00pci_register_read(rt2x00dev, MACCSR2, ®); | |
772 | rt2x00_set_field32(®, MACCSR2_DELAY, 64); | |
773 | rt2x00pci_register_write(rt2x00dev, MACCSR2, reg); | |
774 | ||
775 | rt2x00pci_register_read(rt2x00dev, RALINKCSR, ®); | |
776 | rt2x00_set_field32(®, RALINKCSR_AR_BBP_DATA0, 17); | |
777 | rt2x00_set_field32(®, RALINKCSR_AR_BBP_ID0, 154); | |
778 | rt2x00_set_field32(®, RALINKCSR_AR_BBP_DATA1, 0); | |
779 | rt2x00_set_field32(®, RALINKCSR_AR_BBP_ID1, 154); | |
780 | rt2x00pci_register_write(rt2x00dev, RALINKCSR, reg); | |
781 | ||
782 | rt2x00pci_register_read(rt2x00dev, CSR1, ®); | |
783 | rt2x00_set_field32(®, CSR1_SOFT_RESET, 1); | |
784 | rt2x00_set_field32(®, CSR1_BBP_RESET, 0); | |
785 | rt2x00_set_field32(®, CSR1_HOST_READY, 0); | |
786 | rt2x00pci_register_write(rt2x00dev, CSR1, reg); | |
787 | ||
788 | rt2x00pci_register_read(rt2x00dev, CSR1, ®); | |
789 | rt2x00_set_field32(®, CSR1_SOFT_RESET, 0); | |
790 | rt2x00_set_field32(®, CSR1_HOST_READY, 1); | |
791 | rt2x00pci_register_write(rt2x00dev, CSR1, reg); | |
792 | ||
793 | /* | |
794 | * We must clear the FCS and FIFO error count. | |
795 | * These registers are cleared on read, | |
796 | * so we may pass a useless variable to store the value. | |
797 | */ | |
798 | rt2x00pci_register_read(rt2x00dev, CNT0, ®); | |
799 | rt2x00pci_register_read(rt2x00dev, CNT4, ®); | |
800 | ||
801 | return 0; | |
802 | } | |
803 | ||
2b08da3f | 804 | static int rt2400pci_wait_bbp_ready(struct rt2x00_dev *rt2x00dev) |
95ea3627 ID |
805 | { |
806 | unsigned int i; | |
95ea3627 ID |
807 | u8 value; |
808 | ||
809 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { | |
810 | rt2400pci_bbp_read(rt2x00dev, 0, &value); | |
811 | if ((value != 0xff) && (value != 0x00)) | |
2b08da3f | 812 | return 0; |
95ea3627 ID |
813 | udelay(REGISTER_BUSY_DELAY); |
814 | } | |
815 | ||
816 | ERROR(rt2x00dev, "BBP register access failed, aborting.\n"); | |
817 | return -EACCES; | |
2b08da3f ID |
818 | } |
819 | ||
820 | static int rt2400pci_init_bbp(struct rt2x00_dev *rt2x00dev) | |
821 | { | |
822 | unsigned int i; | |
823 | u16 eeprom; | |
824 | u8 reg_id; | |
825 | u8 value; | |
826 | ||
827 | if (unlikely(rt2400pci_wait_bbp_ready(rt2x00dev))) | |
828 | return -EACCES; | |
95ea3627 | 829 | |
95ea3627 ID |
830 | rt2400pci_bbp_write(rt2x00dev, 1, 0x00); |
831 | rt2400pci_bbp_write(rt2x00dev, 3, 0x27); | |
832 | rt2400pci_bbp_write(rt2x00dev, 4, 0x08); | |
833 | rt2400pci_bbp_write(rt2x00dev, 10, 0x0f); | |
834 | rt2400pci_bbp_write(rt2x00dev, 15, 0x72); | |
835 | rt2400pci_bbp_write(rt2x00dev, 16, 0x74); | |
836 | rt2400pci_bbp_write(rt2x00dev, 17, 0x20); | |
837 | rt2400pci_bbp_write(rt2x00dev, 18, 0x72); | |
838 | rt2400pci_bbp_write(rt2x00dev, 19, 0x0b); | |
839 | rt2400pci_bbp_write(rt2x00dev, 20, 0x00); | |
840 | rt2400pci_bbp_write(rt2x00dev, 28, 0x11); | |
841 | rt2400pci_bbp_write(rt2x00dev, 29, 0x04); | |
842 | rt2400pci_bbp_write(rt2x00dev, 30, 0x21); | |
843 | rt2400pci_bbp_write(rt2x00dev, 31, 0x00); | |
844 | ||
95ea3627 ID |
845 | for (i = 0; i < EEPROM_BBP_SIZE; i++) { |
846 | rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom); | |
847 | ||
848 | if (eeprom != 0xffff && eeprom != 0x0000) { | |
849 | reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID); | |
850 | value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE); | |
95ea3627 ID |
851 | rt2400pci_bbp_write(rt2x00dev, reg_id, value); |
852 | } | |
853 | } | |
95ea3627 ID |
854 | |
855 | return 0; | |
856 | } | |
857 | ||
858 | /* | |
859 | * Device state switch handlers. | |
860 | */ | |
861 | static void rt2400pci_toggle_rx(struct rt2x00_dev *rt2x00dev, | |
862 | enum dev_state state) | |
863 | { | |
864 | u32 reg; | |
865 | ||
866 | rt2x00pci_register_read(rt2x00dev, RXCSR0, ®); | |
867 | rt2x00_set_field32(®, RXCSR0_DISABLE_RX, | |
2b08da3f ID |
868 | (state == STATE_RADIO_RX_OFF) || |
869 | (state == STATE_RADIO_RX_OFF_LINK)); | |
95ea3627 ID |
870 | rt2x00pci_register_write(rt2x00dev, RXCSR0, reg); |
871 | } | |
872 | ||
873 | static void rt2400pci_toggle_irq(struct rt2x00_dev *rt2x00dev, | |
874 | enum dev_state state) | |
875 | { | |
876 | int mask = (state == STATE_RADIO_IRQ_OFF); | |
877 | u32 reg; | |
878 | ||
879 | /* | |
880 | * When interrupts are being enabled, the interrupt registers | |
881 | * should clear the register to assure a clean state. | |
882 | */ | |
883 | if (state == STATE_RADIO_IRQ_ON) { | |
884 | rt2x00pci_register_read(rt2x00dev, CSR7, ®); | |
885 | rt2x00pci_register_write(rt2x00dev, CSR7, reg); | |
886 | } | |
887 | ||
888 | /* | |
889 | * Only toggle the interrupts bits we are going to use. | |
890 | * Non-checked interrupt bits are disabled by default. | |
891 | */ | |
892 | rt2x00pci_register_read(rt2x00dev, CSR8, ®); | |
893 | rt2x00_set_field32(®, CSR8_TBCN_EXPIRE, mask); | |
894 | rt2x00_set_field32(®, CSR8_TXDONE_TXRING, mask); | |
895 | rt2x00_set_field32(®, CSR8_TXDONE_ATIMRING, mask); | |
896 | rt2x00_set_field32(®, CSR8_TXDONE_PRIORING, mask); | |
897 | rt2x00_set_field32(®, CSR8_RXDONE, mask); | |
898 | rt2x00pci_register_write(rt2x00dev, CSR8, reg); | |
899 | } | |
900 | ||
901 | static int rt2400pci_enable_radio(struct rt2x00_dev *rt2x00dev) | |
902 | { | |
903 | /* | |
904 | * Initialize all registers. | |
905 | */ | |
2b08da3f ID |
906 | if (unlikely(rt2400pci_init_queues(rt2x00dev) || |
907 | rt2400pci_init_registers(rt2x00dev) || | |
908 | rt2400pci_init_bbp(rt2x00dev))) | |
95ea3627 | 909 | return -EIO; |
95ea3627 | 910 | |
95ea3627 ID |
911 | return 0; |
912 | } | |
913 | ||
914 | static void rt2400pci_disable_radio(struct rt2x00_dev *rt2x00dev) | |
915 | { | |
95ea3627 | 916 | /* |
a2c9b652 | 917 | * Disable power |
95ea3627 | 918 | */ |
a2c9b652 | 919 | rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0); |
95ea3627 ID |
920 | } |
921 | ||
922 | static int rt2400pci_set_state(struct rt2x00_dev *rt2x00dev, | |
923 | enum dev_state state) | |
924 | { | |
925 | u32 reg; | |
926 | unsigned int i; | |
927 | char put_to_sleep; | |
928 | char bbp_state; | |
929 | char rf_state; | |
930 | ||
931 | put_to_sleep = (state != STATE_AWAKE); | |
932 | ||
933 | rt2x00pci_register_read(rt2x00dev, PWRCSR1, ®); | |
934 | rt2x00_set_field32(®, PWRCSR1_SET_STATE, 1); | |
935 | rt2x00_set_field32(®, PWRCSR1_BBP_DESIRE_STATE, state); | |
936 | rt2x00_set_field32(®, PWRCSR1_RF_DESIRE_STATE, state); | |
937 | rt2x00_set_field32(®, PWRCSR1_PUT_TO_SLEEP, put_to_sleep); | |
938 | rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg); | |
939 | ||
940 | /* | |
941 | * Device is not guaranteed to be in the requested state yet. | |
942 | * We must wait until the register indicates that the | |
943 | * device has entered the correct state. | |
944 | */ | |
945 | for (i = 0; i < REGISTER_BUSY_COUNT; i++) { | |
946 | rt2x00pci_register_read(rt2x00dev, PWRCSR1, ®); | |
947 | bbp_state = rt2x00_get_field32(reg, PWRCSR1_BBP_CURR_STATE); | |
948 | rf_state = rt2x00_get_field32(reg, PWRCSR1_RF_CURR_STATE); | |
949 | if (bbp_state == state && rf_state == state) | |
950 | return 0; | |
951 | msleep(10); | |
952 | } | |
953 | ||
95ea3627 ID |
954 | return -EBUSY; |
955 | } | |
956 | ||
957 | static int rt2400pci_set_device_state(struct rt2x00_dev *rt2x00dev, | |
958 | enum dev_state state) | |
959 | { | |
960 | int retval = 0; | |
961 | ||
962 | switch (state) { | |
963 | case STATE_RADIO_ON: | |
964 | retval = rt2400pci_enable_radio(rt2x00dev); | |
965 | break; | |
966 | case STATE_RADIO_OFF: | |
967 | rt2400pci_disable_radio(rt2x00dev); | |
968 | break; | |
969 | case STATE_RADIO_RX_ON: | |
61667d8d | 970 | case STATE_RADIO_RX_ON_LINK: |
95ea3627 | 971 | case STATE_RADIO_RX_OFF: |
61667d8d | 972 | case STATE_RADIO_RX_OFF_LINK: |
2b08da3f ID |
973 | rt2400pci_toggle_rx(rt2x00dev, state); |
974 | break; | |
975 | case STATE_RADIO_IRQ_ON: | |
976 | case STATE_RADIO_IRQ_OFF: | |
977 | rt2400pci_toggle_irq(rt2x00dev, state); | |
95ea3627 ID |
978 | break; |
979 | case STATE_DEEP_SLEEP: | |
980 | case STATE_SLEEP: | |
981 | case STATE_STANDBY: | |
982 | case STATE_AWAKE: | |
983 | retval = rt2400pci_set_state(rt2x00dev, state); | |
984 | break; | |
985 | default: | |
986 | retval = -ENOTSUPP; | |
987 | break; | |
988 | } | |
989 | ||
2b08da3f ID |
990 | if (unlikely(retval)) |
991 | ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n", | |
992 | state, retval); | |
993 | ||
95ea3627 ID |
994 | return retval; |
995 | } | |
996 | ||
997 | /* | |
998 | * TX descriptor initialization | |
999 | */ | |
1000 | static void rt2400pci_write_tx_desc(struct rt2x00_dev *rt2x00dev, | |
dd3193e1 | 1001 | struct sk_buff *skb, |
61486e0f | 1002 | struct txentry_desc *txdesc) |
95ea3627 | 1003 | { |
181d6902 | 1004 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb); |
b8be63ff | 1005 | struct queue_entry_priv_pci *entry_priv = skbdesc->entry->priv_data; |
dd3193e1 | 1006 | __le32 *txd = skbdesc->desc; |
95ea3627 | 1007 | u32 word; |
95ea3627 ID |
1008 | |
1009 | /* | |
1010 | * Start writing the descriptor words. | |
1011 | */ | |
4de36fe5 | 1012 | rt2x00_desc_read(entry_priv->desc, 1, &word); |
c4da0048 | 1013 | rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma); |
4de36fe5 GW |
1014 | rt2x00_desc_write(entry_priv->desc, 1, word); |
1015 | ||
95ea3627 | 1016 | rt2x00_desc_read(txd, 2, &word); |
d56d453a GW |
1017 | rt2x00_set_field32(&word, TXD_W2_BUFFER_LENGTH, skb->len); |
1018 | rt2x00_set_field32(&word, TXD_W2_DATABYTE_COUNT, skb->len); | |
95ea3627 ID |
1019 | rt2x00_desc_write(txd, 2, word); |
1020 | ||
1021 | rt2x00_desc_read(txd, 3, &word); | |
181d6902 | 1022 | rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, txdesc->signal); |
49da2605 ID |
1023 | rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL_REGNUM, 5); |
1024 | rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL_BUSY, 1); | |
181d6902 | 1025 | rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, txdesc->service); |
49da2605 ID |
1026 | rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE_REGNUM, 6); |
1027 | rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE_BUSY, 1); | |
95ea3627 ID |
1028 | rt2x00_desc_write(txd, 3, word); |
1029 | ||
1030 | rt2x00_desc_read(txd, 4, &word); | |
181d6902 | 1031 | rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_LOW, txdesc->length_low); |
49da2605 ID |
1032 | rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW_REGNUM, 8); |
1033 | rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW_BUSY, 1); | |
181d6902 | 1034 | rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_HIGH, txdesc->length_high); |
49da2605 ID |
1035 | rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH_REGNUM, 7); |
1036 | rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH_BUSY, 1); | |
95ea3627 ID |
1037 | rt2x00_desc_write(txd, 4, word); |
1038 | ||
1039 | rt2x00_desc_read(txd, 0, &word); | |
1040 | rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1); | |
1041 | rt2x00_set_field32(&word, TXD_W0_VALID, 1); | |
1042 | rt2x00_set_field32(&word, TXD_W0_MORE_FRAG, | |
181d6902 | 1043 | test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags)); |
95ea3627 | 1044 | rt2x00_set_field32(&word, TXD_W0_ACK, |
181d6902 | 1045 | test_bit(ENTRY_TXD_ACK, &txdesc->flags)); |
95ea3627 | 1046 | rt2x00_set_field32(&word, TXD_W0_TIMESTAMP, |
181d6902 | 1047 | test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags)); |
95ea3627 | 1048 | rt2x00_set_field32(&word, TXD_W0_RTS, |
181d6902 ID |
1049 | test_bit(ENTRY_TXD_RTS_FRAME, &txdesc->flags)); |
1050 | rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->ifs); | |
95ea3627 | 1051 | rt2x00_set_field32(&word, TXD_W0_RETRY_MODE, |
aade5102 | 1052 | test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags)); |
95ea3627 ID |
1053 | rt2x00_desc_write(txd, 0, word); |
1054 | } | |
1055 | ||
1056 | /* | |
1057 | * TX data initialization | |
1058 | */ | |
bd88a781 ID |
1059 | static void rt2400pci_write_beacon(struct queue_entry *entry) |
1060 | { | |
1061 | struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; | |
1062 | struct queue_entry_priv_pci *entry_priv = entry->priv_data; | |
1063 | struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); | |
1064 | u32 word; | |
1065 | u32 reg; | |
1066 | ||
1067 | /* | |
1068 | * Disable beaconing while we are reloading the beacon data, | |
1069 | * otherwise we might be sending out invalid data. | |
1070 | */ | |
1071 | rt2x00pci_register_read(rt2x00dev, CSR14, ®); | |
bd88a781 ID |
1072 | rt2x00_set_field32(®, CSR14_BEACON_GEN, 0); |
1073 | rt2x00pci_register_write(rt2x00dev, CSR14, reg); | |
1074 | ||
1075 | /* | |
1076 | * Replace rt2x00lib allocated descriptor with the | |
1077 | * pointer to the _real_ hardware descriptor. | |
1078 | * After that, map the beacon to DMA and update the | |
1079 | * descriptor. | |
1080 | */ | |
1081 | memcpy(entry_priv->desc, skbdesc->desc, skbdesc->desc_len); | |
1082 | skbdesc->desc = entry_priv->desc; | |
1083 | ||
1084 | rt2x00queue_map_txskb(rt2x00dev, entry->skb); | |
1085 | ||
1086 | rt2x00_desc_read(entry_priv->desc, 1, &word); | |
1087 | rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma); | |
1088 | rt2x00_desc_write(entry_priv->desc, 1, word); | |
1089 | } | |
1090 | ||
95ea3627 | 1091 | static void rt2400pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev, |
e58c6aca | 1092 | const enum data_queue_qid queue) |
95ea3627 ID |
1093 | { |
1094 | u32 reg; | |
1095 | ||
e58c6aca | 1096 | if (queue == QID_BEACON) { |
95ea3627 ID |
1097 | rt2x00pci_register_read(rt2x00dev, CSR14, ®); |
1098 | if (!rt2x00_get_field32(reg, CSR14_BEACON_GEN)) { | |
8af244cc ID |
1099 | rt2x00_set_field32(®, CSR14_TSF_COUNT, 1); |
1100 | rt2x00_set_field32(®, CSR14_TBCN, 1); | |
95ea3627 ID |
1101 | rt2x00_set_field32(®, CSR14_BEACON_GEN, 1); |
1102 | rt2x00pci_register_write(rt2x00dev, CSR14, reg); | |
1103 | } | |
1104 | return; | |
1105 | } | |
1106 | ||
1107 | rt2x00pci_register_read(rt2x00dev, TXCSR0, ®); | |
e58c6aca ID |
1108 | rt2x00_set_field32(®, TXCSR0_KICK_PRIO, (queue == QID_AC_BE)); |
1109 | rt2x00_set_field32(®, TXCSR0_KICK_TX, (queue == QID_AC_BK)); | |
1110 | rt2x00_set_field32(®, TXCSR0_KICK_ATIM, (queue == QID_ATIM)); | |
95ea3627 ID |
1111 | rt2x00pci_register_write(rt2x00dev, TXCSR0, reg); |
1112 | } | |
1113 | ||
a2c9b652 ID |
1114 | static void rt2400pci_kill_tx_queue(struct rt2x00_dev *rt2x00dev, |
1115 | const enum data_queue_qid qid) | |
1116 | { | |
1117 | u32 reg; | |
1118 | ||
1119 | if (qid == QID_BEACON) { | |
1120 | rt2x00pci_register_write(rt2x00dev, CSR14, 0); | |
1121 | } else { | |
1122 | rt2x00pci_register_read(rt2x00dev, TXCSR0, ®); | |
1123 | rt2x00_set_field32(®, TXCSR0_ABORT, 1); | |
1124 | rt2x00pci_register_write(rt2x00dev, TXCSR0, reg); | |
1125 | } | |
1126 | } | |
1127 | ||
95ea3627 ID |
1128 | /* |
1129 | * RX control handlers | |
1130 | */ | |
181d6902 ID |
1131 | static void rt2400pci_fill_rxdone(struct queue_entry *entry, |
1132 | struct rxdone_entry_desc *rxdesc) | |
95ea3627 | 1133 | { |
ae73e58e | 1134 | struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; |
b8be63ff | 1135 | struct queue_entry_priv_pci *entry_priv = entry->priv_data; |
95ea3627 ID |
1136 | u32 word0; |
1137 | u32 word2; | |
89993890 | 1138 | u32 word3; |
ae73e58e ID |
1139 | u32 word4; |
1140 | u64 tsf; | |
1141 | u32 rx_low; | |
1142 | u32 rx_high; | |
95ea3627 | 1143 | |
b8be63ff ID |
1144 | rt2x00_desc_read(entry_priv->desc, 0, &word0); |
1145 | rt2x00_desc_read(entry_priv->desc, 2, &word2); | |
1146 | rt2x00_desc_read(entry_priv->desc, 3, &word3); | |
ae73e58e | 1147 | rt2x00_desc_read(entry_priv->desc, 4, &word4); |
95ea3627 | 1148 | |
4150c572 | 1149 | if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR)) |
181d6902 | 1150 | rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC; |
4150c572 | 1151 | if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR)) |
181d6902 | 1152 | rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC; |
95ea3627 | 1153 | |
ae73e58e ID |
1154 | /* |
1155 | * We only get the lower 32bits from the timestamp, | |
1156 | * to get the full 64bits we must complement it with | |
1157 | * the timestamp from get_tsf(). | |
1158 | * Note that when a wraparound of the lower 32bits | |
1159 | * has occurred between the frame arrival and the get_tsf() | |
1160 | * call, we must decrease the higher 32bits with 1 to get | |
1161 | * to correct value. | |
1162 | */ | |
1163 | tsf = rt2x00dev->ops->hw->get_tsf(rt2x00dev->hw); | |
1164 | rx_low = rt2x00_get_field32(word4, RXD_W4_RX_END_TIME); | |
1165 | rx_high = upper_32_bits(tsf); | |
1166 | ||
1167 | if ((u32)tsf <= rx_low) | |
1168 | rx_high--; | |
1169 | ||
95ea3627 ID |
1170 | /* |
1171 | * Obtain the status about this packet. | |
8ed09854 ID |
1172 | * The signal is the PLCP value, and needs to be stripped |
1173 | * of the preamble bit (0x08). | |
95ea3627 | 1174 | */ |
ae73e58e | 1175 | rxdesc->timestamp = ((u64)rx_high << 32) | rx_low; |
8ed09854 | 1176 | rxdesc->signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL) & ~0x08; |
89993890 | 1177 | rxdesc->rssi = rt2x00_get_field32(word2, RXD_W3_RSSI) - |
181d6902 | 1178 | entry->queue->rt2x00dev->rssi_offset; |
181d6902 | 1179 | rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT); |
19d30e02 | 1180 | |
dec13b6b | 1181 | rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP; |
19d30e02 ID |
1182 | if (rt2x00_get_field32(word0, RXD_W0_MY_BSS)) |
1183 | rxdesc->dev_flags |= RXDONE_MY_BSS; | |
95ea3627 ID |
1184 | } |
1185 | ||
1186 | /* | |
1187 | * Interrupt functions. | |
1188 | */ | |
181d6902 | 1189 | static void rt2400pci_txdone(struct rt2x00_dev *rt2x00dev, |
e58c6aca | 1190 | const enum data_queue_qid queue_idx) |
95ea3627 | 1191 | { |
181d6902 | 1192 | struct data_queue *queue = rt2x00queue_get_queue(rt2x00dev, queue_idx); |
b8be63ff | 1193 | struct queue_entry_priv_pci *entry_priv; |
181d6902 ID |
1194 | struct queue_entry *entry; |
1195 | struct txdone_entry_desc txdesc; | |
95ea3627 | 1196 | u32 word; |
95ea3627 | 1197 | |
181d6902 ID |
1198 | while (!rt2x00queue_empty(queue)) { |
1199 | entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE); | |
b8be63ff ID |
1200 | entry_priv = entry->priv_data; |
1201 | rt2x00_desc_read(entry_priv->desc, 0, &word); | |
95ea3627 ID |
1202 | |
1203 | if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) || | |
1204 | !rt2x00_get_field32(word, TXD_W0_VALID)) | |
1205 | break; | |
1206 | ||
1207 | /* | |
1208 | * Obtain the status about this packet. | |
1209 | */ | |
fb55f4d1 ID |
1210 | txdesc.flags = 0; |
1211 | switch (rt2x00_get_field32(word, TXD_W0_RESULT)) { | |
1212 | case 0: /* Success */ | |
1213 | case 1: /* Success with retry */ | |
1214 | __set_bit(TXDONE_SUCCESS, &txdesc.flags); | |
1215 | break; | |
1216 | case 2: /* Failure, excessive retries */ | |
1217 | __set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags); | |
1218 | /* Don't break, this is a failed frame! */ | |
1219 | default: /* Failure */ | |
1220 | __set_bit(TXDONE_FAILURE, &txdesc.flags); | |
1221 | } | |
181d6902 | 1222 | txdesc.retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT); |
95ea3627 | 1223 | |
d74f5ba4 | 1224 | rt2x00lib_txdone(entry, &txdesc); |
95ea3627 | 1225 | } |
95ea3627 ID |
1226 | } |
1227 | ||
1228 | static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance) | |
1229 | { | |
1230 | struct rt2x00_dev *rt2x00dev = dev_instance; | |
1231 | u32 reg; | |
1232 | ||
1233 | /* | |
1234 | * Get the interrupt sources & saved to local variable. | |
1235 | * Write register value back to clear pending interrupts. | |
1236 | */ | |
1237 | rt2x00pci_register_read(rt2x00dev, CSR7, ®); | |
1238 | rt2x00pci_register_write(rt2x00dev, CSR7, reg); | |
1239 | ||
1240 | if (!reg) | |
1241 | return IRQ_NONE; | |
1242 | ||
0262ab0d | 1243 | if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) |
95ea3627 ID |
1244 | return IRQ_HANDLED; |
1245 | ||
1246 | /* | |
1247 | * Handle interrupts, walk through all bits | |
1248 | * and run the tasks, the bits are checked in order of | |
1249 | * priority. | |
1250 | */ | |
1251 | ||
1252 | /* | |
1253 | * 1 - Beacon timer expired interrupt. | |
1254 | */ | |
1255 | if (rt2x00_get_field32(reg, CSR7_TBCN_EXPIRE)) | |
1256 | rt2x00lib_beacondone(rt2x00dev); | |
1257 | ||
1258 | /* | |
1259 | * 2 - Rx ring done interrupt. | |
1260 | */ | |
1261 | if (rt2x00_get_field32(reg, CSR7_RXDONE)) | |
1262 | rt2x00pci_rxdone(rt2x00dev); | |
1263 | ||
1264 | /* | |
1265 | * 3 - Atim ring transmit done interrupt. | |
1266 | */ | |
1267 | if (rt2x00_get_field32(reg, CSR7_TXDONE_ATIMRING)) | |
e58c6aca | 1268 | rt2400pci_txdone(rt2x00dev, QID_ATIM); |
95ea3627 ID |
1269 | |
1270 | /* | |
1271 | * 4 - Priority ring transmit done interrupt. | |
1272 | */ | |
1273 | if (rt2x00_get_field32(reg, CSR7_TXDONE_PRIORING)) | |
e58c6aca | 1274 | rt2400pci_txdone(rt2x00dev, QID_AC_BE); |
95ea3627 ID |
1275 | |
1276 | /* | |
1277 | * 5 - Tx ring transmit done interrupt. | |
1278 | */ | |
1279 | if (rt2x00_get_field32(reg, CSR7_TXDONE_TXRING)) | |
e58c6aca | 1280 | rt2400pci_txdone(rt2x00dev, QID_AC_BK); |
95ea3627 ID |
1281 | |
1282 | return IRQ_HANDLED; | |
1283 | } | |
1284 | ||
1285 | /* | |
1286 | * Device probe functions. | |
1287 | */ | |
1288 | static int rt2400pci_validate_eeprom(struct rt2x00_dev *rt2x00dev) | |
1289 | { | |
1290 | struct eeprom_93cx6 eeprom; | |
1291 | u32 reg; | |
1292 | u16 word; | |
1293 | u8 *mac; | |
1294 | ||
1295 | rt2x00pci_register_read(rt2x00dev, CSR21, ®); | |
1296 | ||
1297 | eeprom.data = rt2x00dev; | |
1298 | eeprom.register_read = rt2400pci_eepromregister_read; | |
1299 | eeprom.register_write = rt2400pci_eepromregister_write; | |
1300 | eeprom.width = rt2x00_get_field32(reg, CSR21_TYPE_93C46) ? | |
1301 | PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66; | |
1302 | eeprom.reg_data_in = 0; | |
1303 | eeprom.reg_data_out = 0; | |
1304 | eeprom.reg_data_clock = 0; | |
1305 | eeprom.reg_chip_select = 0; | |
1306 | ||
1307 | eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom, | |
1308 | EEPROM_SIZE / sizeof(u16)); | |
1309 | ||
1310 | /* | |
1311 | * Start validation of the data that has been read. | |
1312 | */ | |
1313 | mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0); | |
1314 | if (!is_valid_ether_addr(mac)) { | |
1315 | random_ether_addr(mac); | |
e174961c | 1316 | EEPROM(rt2x00dev, "MAC: %pM\n", mac); |
95ea3627 ID |
1317 | } |
1318 | ||
1319 | rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word); | |
1320 | if (word == 0xffff) { | |
1321 | ERROR(rt2x00dev, "Invalid EEPROM data detected.\n"); | |
1322 | return -EINVAL; | |
1323 | } | |
1324 | ||
1325 | return 0; | |
1326 | } | |
1327 | ||
1328 | static int rt2400pci_init_eeprom(struct rt2x00_dev *rt2x00dev) | |
1329 | { | |
1330 | u32 reg; | |
1331 | u16 value; | |
1332 | u16 eeprom; | |
1333 | ||
1334 | /* | |
1335 | * Read EEPROM word for configuration. | |
1336 | */ | |
1337 | rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom); | |
1338 | ||
1339 | /* | |
1340 | * Identify RF chipset. | |
1341 | */ | |
1342 | value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE); | |
1343 | rt2x00pci_register_read(rt2x00dev, CSR0, ®); | |
49e721ec GW |
1344 | rt2x00_set_chip(rt2x00dev, RT2460, value, |
1345 | rt2x00_get_field32(reg, CSR0_REVISION)); | |
95ea3627 | 1346 | |
5122d898 | 1347 | if (!rt2x00_rf(rt2x00dev, RF2420) && !rt2x00_rf(rt2x00dev, RF2421)) { |
95ea3627 ID |
1348 | ERROR(rt2x00dev, "Invalid RF chipset detected.\n"); |
1349 | return -ENODEV; | |
1350 | } | |
1351 | ||
1352 | /* | |
1353 | * Identify default antenna configuration. | |
1354 | */ | |
addc81bd | 1355 | rt2x00dev->default_ant.tx = |
95ea3627 | 1356 | rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT); |
addc81bd | 1357 | rt2x00dev->default_ant.rx = |
95ea3627 ID |
1358 | rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT); |
1359 | ||
addc81bd ID |
1360 | /* |
1361 | * When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead. | |
1362 | * I am not 100% sure about this, but the legacy drivers do not | |
1363 | * indicate antenna swapping in software is required when | |
1364 | * diversity is enabled. | |
1365 | */ | |
1366 | if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY) | |
1367 | rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY; | |
1368 | if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY) | |
1369 | rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY; | |
1370 | ||
95ea3627 ID |
1371 | /* |
1372 | * Store led mode, for correct led behaviour. | |
1373 | */ | |
771fd565 | 1374 | #ifdef CONFIG_RT2X00_LIB_LEDS |
a9450b70 ID |
1375 | value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE); |
1376 | ||
475433be | 1377 | rt2400pci_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO); |
3d3e451f ID |
1378 | if (value == LED_MODE_TXRX_ACTIVITY || |
1379 | value == LED_MODE_DEFAULT || | |
1380 | value == LED_MODE_ASUS) | |
475433be ID |
1381 | rt2400pci_init_led(rt2x00dev, &rt2x00dev->led_qual, |
1382 | LED_TYPE_ACTIVITY); | |
771fd565 | 1383 | #endif /* CONFIG_RT2X00_LIB_LEDS */ |
95ea3627 ID |
1384 | |
1385 | /* | |
1386 | * Detect if this device has an hardware controlled radio. | |
1387 | */ | |
1388 | if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO)) | |
066cb637 | 1389 | __set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags); |
95ea3627 ID |
1390 | |
1391 | /* | |
1392 | * Check if the BBP tuning should be enabled. | |
1393 | */ | |
1394 | if (!rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_AGCVGC_TUNING)) | |
1395 | __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags); | |
1396 | ||
1397 | return 0; | |
1398 | } | |
1399 | ||
1400 | /* | |
1401 | * RF value list for RF2420 & RF2421 | |
1402 | * Supports: 2.4 GHz | |
1403 | */ | |
8c5e7a5f | 1404 | static const struct rf_channel rf_vals_b[] = { |
95ea3627 ID |
1405 | { 1, 0x00022058, 0x000c1fda, 0x00000101, 0 }, |
1406 | { 2, 0x00022058, 0x000c1fee, 0x00000101, 0 }, | |
1407 | { 3, 0x00022058, 0x000c2002, 0x00000101, 0 }, | |
1408 | { 4, 0x00022058, 0x000c2016, 0x00000101, 0 }, | |
1409 | { 5, 0x00022058, 0x000c202a, 0x00000101, 0 }, | |
1410 | { 6, 0x00022058, 0x000c203e, 0x00000101, 0 }, | |
1411 | { 7, 0x00022058, 0x000c2052, 0x00000101, 0 }, | |
1412 | { 8, 0x00022058, 0x000c2066, 0x00000101, 0 }, | |
1413 | { 9, 0x00022058, 0x000c207a, 0x00000101, 0 }, | |
1414 | { 10, 0x00022058, 0x000c208e, 0x00000101, 0 }, | |
1415 | { 11, 0x00022058, 0x000c20a2, 0x00000101, 0 }, | |
1416 | { 12, 0x00022058, 0x000c20b6, 0x00000101, 0 }, | |
1417 | { 13, 0x00022058, 0x000c20ca, 0x00000101, 0 }, | |
1418 | { 14, 0x00022058, 0x000c20fa, 0x00000101, 0 }, | |
1419 | }; | |
1420 | ||
8c5e7a5f | 1421 | static int rt2400pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev) |
95ea3627 ID |
1422 | { |
1423 | struct hw_mode_spec *spec = &rt2x00dev->spec; | |
8c5e7a5f ID |
1424 | struct channel_info *info; |
1425 | char *tx_power; | |
95ea3627 ID |
1426 | unsigned int i; |
1427 | ||
1428 | /* | |
1429 | * Initialize all hw fields. | |
1430 | */ | |
566bfe5a | 1431 | rt2x00dev->hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | |
4be8c387 JB |
1432 | IEEE80211_HW_SIGNAL_DBM | |
1433 | IEEE80211_HW_SUPPORTS_PS | | |
1434 | IEEE80211_HW_PS_NULLFUNC_STACK; | |
95ea3627 | 1435 | |
14a3bf89 | 1436 | SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev); |
95ea3627 ID |
1437 | SET_IEEE80211_PERM_ADDR(rt2x00dev->hw, |
1438 | rt2x00_eeprom_addr(rt2x00dev, | |
1439 | EEPROM_MAC_ADDR_0)); | |
1440 | ||
95ea3627 ID |
1441 | /* |
1442 | * Initialize hw_mode information. | |
1443 | */ | |
31562e80 ID |
1444 | spec->supported_bands = SUPPORT_BAND_2GHZ; |
1445 | spec->supported_rates = SUPPORT_RATE_CCK; | |
95ea3627 | 1446 | |
8c5e7a5f ID |
1447 | spec->num_channels = ARRAY_SIZE(rf_vals_b); |
1448 | spec->channels = rf_vals_b; | |
1449 | ||
1450 | /* | |
1451 | * Create channel information array | |
1452 | */ | |
1453 | info = kzalloc(spec->num_channels * sizeof(*info), GFP_KERNEL); | |
1454 | if (!info) | |
1455 | return -ENOMEM; | |
1456 | ||
1457 | spec->channels_info = info; | |
1458 | ||
1459 | tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START); | |
1460 | for (i = 0; i < 14; i++) | |
1461 | info[i].tx_power1 = TXPOWER_FROM_DEV(tx_power[i]); | |
1462 | ||
1463 | return 0; | |
95ea3627 ID |
1464 | } |
1465 | ||
1466 | static int rt2400pci_probe_hw(struct rt2x00_dev *rt2x00dev) | |
1467 | { | |
1468 | int retval; | |
1469 | ||
1470 | /* | |
1471 | * Allocate eeprom data. | |
1472 | */ | |
1473 | retval = rt2400pci_validate_eeprom(rt2x00dev); | |
1474 | if (retval) | |
1475 | return retval; | |
1476 | ||
1477 | retval = rt2400pci_init_eeprom(rt2x00dev); | |
1478 | if (retval) | |
1479 | return retval; | |
1480 | ||
1481 | /* | |
1482 | * Initialize hw specifications. | |
1483 | */ | |
8c5e7a5f ID |
1484 | retval = rt2400pci_probe_hw_mode(rt2x00dev); |
1485 | if (retval) | |
1486 | return retval; | |
95ea3627 ID |
1487 | |
1488 | /* | |
c4da0048 | 1489 | * This device requires the atim queue and DMA-mapped skbs. |
95ea3627 | 1490 | */ |
181d6902 | 1491 | __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags); |
c4da0048 | 1492 | __set_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags); |
95ea3627 ID |
1493 | |
1494 | /* | |
1495 | * Set the rssi offset. | |
1496 | */ | |
1497 | rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET; | |
1498 | ||
1499 | return 0; | |
1500 | } | |
1501 | ||
1502 | /* | |
1503 | * IEEE80211 stack callback functions. | |
1504 | */ | |
e100bb64 | 1505 | static int rt2400pci_conf_tx(struct ieee80211_hw *hw, u16 queue, |
95ea3627 ID |
1506 | const struct ieee80211_tx_queue_params *params) |
1507 | { | |
1508 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1509 | ||
1510 | /* | |
1511 | * We don't support variating cw_min and cw_max variables | |
1512 | * per queue. So by default we only configure the TX queue, | |
1513 | * and ignore all other configurations. | |
1514 | */ | |
e100bb64 | 1515 | if (queue != 0) |
95ea3627 ID |
1516 | return -EINVAL; |
1517 | ||
1518 | if (rt2x00mac_conf_tx(hw, queue, params)) | |
1519 | return -EINVAL; | |
1520 | ||
1521 | /* | |
1522 | * Write configuration to register. | |
1523 | */ | |
181d6902 ID |
1524 | rt2400pci_config_cw(rt2x00dev, |
1525 | rt2x00dev->tx->cw_min, rt2x00dev->tx->cw_max); | |
95ea3627 ID |
1526 | |
1527 | return 0; | |
1528 | } | |
1529 | ||
1530 | static u64 rt2400pci_get_tsf(struct ieee80211_hw *hw) | |
1531 | { | |
1532 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1533 | u64 tsf; | |
1534 | u32 reg; | |
1535 | ||
1536 | rt2x00pci_register_read(rt2x00dev, CSR17, ®); | |
1537 | tsf = (u64) rt2x00_get_field32(reg, CSR17_HIGH_TSFTIMER) << 32; | |
1538 | rt2x00pci_register_read(rt2x00dev, CSR16, ®); | |
1539 | tsf |= rt2x00_get_field32(reg, CSR16_LOW_TSFTIMER); | |
1540 | ||
1541 | return tsf; | |
1542 | } | |
1543 | ||
95ea3627 ID |
1544 | static int rt2400pci_tx_last_beacon(struct ieee80211_hw *hw) |
1545 | { | |
1546 | struct rt2x00_dev *rt2x00dev = hw->priv; | |
1547 | u32 reg; | |
1548 | ||
1549 | rt2x00pci_register_read(rt2x00dev, CSR15, ®); | |
1550 | return rt2x00_get_field32(reg, CSR15_BEACON_SENT); | |
1551 | } | |
1552 | ||
1553 | static const struct ieee80211_ops rt2400pci_mac80211_ops = { | |
1554 | .tx = rt2x00mac_tx, | |
4150c572 JB |
1555 | .start = rt2x00mac_start, |
1556 | .stop = rt2x00mac_stop, | |
95ea3627 ID |
1557 | .add_interface = rt2x00mac_add_interface, |
1558 | .remove_interface = rt2x00mac_remove_interface, | |
1559 | .config = rt2x00mac_config, | |
3a643d24 | 1560 | .configure_filter = rt2x00mac_configure_filter, |
930c06f2 | 1561 | .set_tim = rt2x00mac_set_tim, |
95ea3627 | 1562 | .get_stats = rt2x00mac_get_stats, |
471b3efd | 1563 | .bss_info_changed = rt2x00mac_bss_info_changed, |
95ea3627 | 1564 | .conf_tx = rt2400pci_conf_tx, |
95ea3627 | 1565 | .get_tsf = rt2400pci_get_tsf, |
95ea3627 | 1566 | .tx_last_beacon = rt2400pci_tx_last_beacon, |
e47a5cdd | 1567 | .rfkill_poll = rt2x00mac_rfkill_poll, |
95ea3627 ID |
1568 | }; |
1569 | ||
1570 | static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = { | |
1571 | .irq_handler = rt2400pci_interrupt, | |
1572 | .probe_hw = rt2400pci_probe_hw, | |
1573 | .initialize = rt2x00pci_initialize, | |
1574 | .uninitialize = rt2x00pci_uninitialize, | |
798b7adb ID |
1575 | .get_entry_state = rt2400pci_get_entry_state, |
1576 | .clear_entry = rt2400pci_clear_entry, | |
95ea3627 | 1577 | .set_device_state = rt2400pci_set_device_state, |
95ea3627 | 1578 | .rfkill_poll = rt2400pci_rfkill_poll, |
95ea3627 ID |
1579 | .link_stats = rt2400pci_link_stats, |
1580 | .reset_tuner = rt2400pci_reset_tuner, | |
1581 | .link_tuner = rt2400pci_link_tuner, | |
1582 | .write_tx_desc = rt2400pci_write_tx_desc, | |
1583 | .write_tx_data = rt2x00pci_write_tx_data, | |
bd88a781 | 1584 | .write_beacon = rt2400pci_write_beacon, |
95ea3627 | 1585 | .kick_tx_queue = rt2400pci_kick_tx_queue, |
a2c9b652 | 1586 | .kill_tx_queue = rt2400pci_kill_tx_queue, |
95ea3627 | 1587 | .fill_rxdone = rt2400pci_fill_rxdone, |
3a643d24 | 1588 | .config_filter = rt2400pci_config_filter, |
6bb40dd1 | 1589 | .config_intf = rt2400pci_config_intf, |
72810379 | 1590 | .config_erp = rt2400pci_config_erp, |
e4ea1c40 | 1591 | .config_ant = rt2400pci_config_ant, |
95ea3627 ID |
1592 | .config = rt2400pci_config, |
1593 | }; | |
1594 | ||
181d6902 ID |
1595 | static const struct data_queue_desc rt2400pci_queue_rx = { |
1596 | .entry_num = RX_ENTRIES, | |
1597 | .data_size = DATA_FRAME_SIZE, | |
1598 | .desc_size = RXD_DESC_SIZE, | |
b8be63ff | 1599 | .priv_size = sizeof(struct queue_entry_priv_pci), |
181d6902 ID |
1600 | }; |
1601 | ||
1602 | static const struct data_queue_desc rt2400pci_queue_tx = { | |
1603 | .entry_num = TX_ENTRIES, | |
1604 | .data_size = DATA_FRAME_SIZE, | |
1605 | .desc_size = TXD_DESC_SIZE, | |
b8be63ff | 1606 | .priv_size = sizeof(struct queue_entry_priv_pci), |
181d6902 ID |
1607 | }; |
1608 | ||
1609 | static const struct data_queue_desc rt2400pci_queue_bcn = { | |
1610 | .entry_num = BEACON_ENTRIES, | |
1611 | .data_size = MGMT_FRAME_SIZE, | |
1612 | .desc_size = TXD_DESC_SIZE, | |
b8be63ff | 1613 | .priv_size = sizeof(struct queue_entry_priv_pci), |
181d6902 ID |
1614 | }; |
1615 | ||
1616 | static const struct data_queue_desc rt2400pci_queue_atim = { | |
1617 | .entry_num = ATIM_ENTRIES, | |
1618 | .data_size = DATA_FRAME_SIZE, | |
1619 | .desc_size = TXD_DESC_SIZE, | |
b8be63ff | 1620 | .priv_size = sizeof(struct queue_entry_priv_pci), |
181d6902 ID |
1621 | }; |
1622 | ||
95ea3627 | 1623 | static const struct rt2x00_ops rt2400pci_ops = { |
04d0362e GW |
1624 | .name = KBUILD_MODNAME, |
1625 | .max_sta_intf = 1, | |
1626 | .max_ap_intf = 1, | |
1627 | .eeprom_size = EEPROM_SIZE, | |
1628 | .rf_size = RF_SIZE, | |
1629 | .tx_queues = NUM_TX_QUEUES, | |
e6218cc4 | 1630 | .extra_tx_headroom = 0, |
04d0362e GW |
1631 | .rx = &rt2400pci_queue_rx, |
1632 | .tx = &rt2400pci_queue_tx, | |
1633 | .bcn = &rt2400pci_queue_bcn, | |
1634 | .atim = &rt2400pci_queue_atim, | |
1635 | .lib = &rt2400pci_rt2x00_ops, | |
1636 | .hw = &rt2400pci_mac80211_ops, | |
95ea3627 | 1637 | #ifdef CONFIG_RT2X00_LIB_DEBUGFS |
04d0362e | 1638 | .debugfs = &rt2400pci_rt2x00debug, |
95ea3627 ID |
1639 | #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ |
1640 | }; | |
1641 | ||
1642 | /* | |
1643 | * RT2400pci module information. | |
1644 | */ | |
a3aa1884 | 1645 | static DEFINE_PCI_DEVICE_TABLE(rt2400pci_device_table) = { |
95ea3627 ID |
1646 | { PCI_DEVICE(0x1814, 0x0101), PCI_DEVICE_DATA(&rt2400pci_ops) }, |
1647 | { 0, } | |
1648 | }; | |
1649 | ||
1650 | MODULE_AUTHOR(DRV_PROJECT); | |
1651 | MODULE_VERSION(DRV_VERSION); | |
1652 | MODULE_DESCRIPTION("Ralink RT2400 PCI & PCMCIA Wireless LAN driver."); | |
1653 | MODULE_SUPPORTED_DEVICE("Ralink RT2460 PCI & PCMCIA chipset based cards"); | |
1654 | MODULE_DEVICE_TABLE(pci, rt2400pci_device_table); | |
1655 | MODULE_LICENSE("GPL"); | |
1656 | ||
1657 | static struct pci_driver rt2400pci_driver = { | |
2360157c | 1658 | .name = KBUILD_MODNAME, |
95ea3627 ID |
1659 | .id_table = rt2400pci_device_table, |
1660 | .probe = rt2x00pci_probe, | |
1661 | .remove = __devexit_p(rt2x00pci_remove), | |
1662 | .suspend = rt2x00pci_suspend, | |
1663 | .resume = rt2x00pci_resume, | |
1664 | }; | |
1665 | ||
1666 | static int __init rt2400pci_init(void) | |
1667 | { | |
1668 | return pci_register_driver(&rt2400pci_driver); | |
1669 | } | |
1670 | ||
1671 | static void __exit rt2400pci_exit(void) | |
1672 | { | |
1673 | pci_unregister_driver(&rt2400pci_driver); | |
1674 | } | |
1675 | ||
1676 | module_init(rt2400pci_init); | |
1677 | module_exit(rt2400pci_exit); |