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ef1a628d MB |
1 | #ifndef LINUX_B43_PHY_COMMON_H_ |
2 | #define LINUX_B43_PHY_COMMON_H_ | |
3 | ||
f41f3f37 | 4 | #include <linux/types.h> |
e5c407f9 | 5 | #include <linux/nl80211.h> |
ef1a628d MB |
6 | |
7 | struct b43_wldev; | |
8 | ||
98650454 RM |
9 | /* Complex number using 2 32-bit signed integers */ |
10 | struct b43_c32 { s32 i, q; }; | |
ef1a628d | 11 | |
6f98e62a RM |
12 | #define CORDIC_CONVERT(value) (((value) >= 0) ? \ |
13 | ((((value) >> 15) + 1) >> 1) : \ | |
14 | -((((-(value)) >> 15) + 1) >> 1)) | |
15 | ||
ef1a628d MB |
16 | /* PHY register routing bits */ |
17 | #define B43_PHYROUTE 0x0C00 /* PHY register routing bits mask */ | |
18 | #define B43_PHYROUTE_BASE 0x0000 /* Base registers */ | |
19 | #define B43_PHYROUTE_OFDM_GPHY 0x0400 /* OFDM register routing for G-PHYs */ | |
20 | #define B43_PHYROUTE_EXT_GPHY 0x0800 /* Extended G-PHY registers */ | |
21 | #define B43_PHYROUTE_N_BMODE 0x0C00 /* N-PHY BMODE registers */ | |
22 | ||
23 | /* CCK (B-PHY) registers. */ | |
24 | #define B43_PHY_CCK(reg) ((reg) | B43_PHYROUTE_BASE) | |
25 | /* N-PHY registers. */ | |
26 | #define B43_PHY_N(reg) ((reg) | B43_PHYROUTE_BASE) | |
27 | /* N-PHY BMODE registers. */ | |
28 | #define B43_PHY_N_BMODE(reg) ((reg) | B43_PHYROUTE_N_BMODE) | |
29 | /* OFDM (A-PHY) registers. */ | |
30 | #define B43_PHY_OFDM(reg) ((reg) | B43_PHYROUTE_OFDM_GPHY) | |
31 | /* Extended G-PHY registers. */ | |
32 | #define B43_PHY_EXTG(reg) ((reg) | B43_PHYROUTE_EXT_GPHY) | |
33 | ||
34 | ||
35 | /* Masks for the PHY versioning registers. */ | |
36 | #define B43_PHYVER_ANALOG 0xF000 | |
37 | #define B43_PHYVER_ANALOG_SHIFT 12 | |
38 | #define B43_PHYVER_TYPE 0x0F00 | |
39 | #define B43_PHYVER_TYPE_SHIFT 8 | |
40 | #define B43_PHYVER_VERSION 0x00FF | |
41 | ||
15518080 RM |
42 | /* PHY writes need to be flushed if we reach limit */ |
43 | #define B43_MAX_WRITES_IN_ROW 24 | |
44 | ||
ef1a628d MB |
45 | /** |
46 | * enum b43_interference_mitigation - Interference Mitigation mode | |
47 | * | |
48 | * @B43_INTERFMODE_NONE: Disabled | |
49 | * @B43_INTERFMODE_NONWLAN: Non-WLAN Interference Mitigation | |
50 | * @B43_INTERFMODE_MANUALWLAN: WLAN Interference Mitigation | |
51 | * @B43_INTERFMODE_AUTOWLAN: Automatic WLAN Interference Mitigation | |
52 | */ | |
53 | enum b43_interference_mitigation { | |
54 | B43_INTERFMODE_NONE, | |
55 | B43_INTERFMODE_NONWLAN, | |
56 | B43_INTERFMODE_MANUALWLAN, | |
57 | B43_INTERFMODE_AUTOWLAN, | |
58 | }; | |
59 | ||
60 | /* Antenna identifiers */ | |
61 | enum { | |
64e368bf GS |
62 | B43_ANTENNA0 = 0, /* Antenna 0 */ |
63 | B43_ANTENNA1 = 1, /* Antenna 1 */ | |
64 | B43_ANTENNA_AUTO0 = 2, /* Automatic, starting with antenna 0 */ | |
65 | B43_ANTENNA_AUTO1 = 3, /* Automatic, starting with antenna 1 */ | |
66 | B43_ANTENNA2 = 4, | |
ef1a628d MB |
67 | B43_ANTENNA3 = 8, |
68 | ||
69 | B43_ANTENNA_AUTO = B43_ANTENNA_AUTO0, | |
70 | B43_ANTENNA_DEFAULT = B43_ANTENNA_AUTO, | |
71 | }; | |
72 | ||
18c8adeb MB |
73 | /** |
74 | * enum b43_txpwr_result - Return value for the recalc_txpower PHY op. | |
75 | * | |
76 | * @B43_TXPWR_RES_NEED_ADJUST: Values changed. Hardware adjustment is needed. | |
77 | * @B43_TXPWR_RES_DONE: No more work to do. Everything is done. | |
78 | */ | |
79 | enum b43_txpwr_result { | |
80 | B43_TXPWR_RES_NEED_ADJUST, | |
81 | B43_TXPWR_RES_DONE, | |
82 | }; | |
83 | ||
ef1a628d MB |
84 | /** |
85 | * struct b43_phy_operations - Function pointers for PHY ops. | |
86 | * | |
fb11137a MB |
87 | * @allocate: Allocate and initialise the PHY data structures. |
88 | * Must not be NULL. | |
89 | * @free: Destroy and free the PHY data structures. | |
90 | * Must not be NULL. | |
91 | * | |
92 | * @prepare_structs: Prepare the PHY data structures. | |
93 | * The data structures allocated in @allocate are | |
94 | * initialized here. | |
95 | * Must not be NULL. | |
96 | * @prepare_hardware: Prepare the PHY. This is called before b43_chip_init to | |
97 | * do some early early PHY hardware init. | |
ef1a628d MB |
98 | * Can be NULL, if not required. |
99 | * @init: Initialize the PHY. | |
100 | * Must not be NULL. | |
fb11137a | 101 | * @exit: Shutdown the PHY. |
ef1a628d MB |
102 | * Can be NULL, if not required. |
103 | * | |
104 | * @phy_read: Read from a PHY register. | |
105 | * Must not be NULL. | |
106 | * @phy_write: Write to a PHY register. | |
107 | * Must not be NULL. | |
68ec5329 GS |
108 | * @phy_maskset: Maskset a PHY register, taking shortcuts. |
109 | * If it is NULL, a generic algorithm is used. | |
ef1a628d MB |
110 | * @radio_read: Read from a Radio register. |
111 | * Must not be NULL. | |
112 | * @radio_write: Write to a Radio register. | |
113 | * Must not be NULL. | |
114 | * | |
115 | * @supports_hwpctl: Returns a boolean whether Hardware Power Control | |
116 | * is supported or not. | |
117 | * If NULL, hwpctl is assumed to be never supported. | |
118 | * @software_rfkill: Turn the radio ON or OFF. | |
119 | * Possible state values are | |
120 | * RFKILL_STATE_SOFT_BLOCKED or | |
121 | * RFKILL_STATE_UNBLOCKED | |
122 | * Must not be NULL. | |
cb24f57f MB |
123 | * @switch_analog: Turn the Analog on/off. |
124 | * Must not be NULL. | |
ef1a628d MB |
125 | * @switch_channel: Switch the radio to another channel. |
126 | * Must not be NULL. | |
127 | * @get_default_chan: Just returns the default channel number. | |
128 | * Must not be NULL. | |
129 | * @set_rx_antenna: Set the antenna used for RX. | |
130 | * Can be NULL, if not supported. | |
131 | * @interf_mitigation: Switch the Interference Mitigation mode. | |
132 | * Can be NULL, if not supported. | |
133 | * | |
18c8adeb MB |
134 | * @recalc_txpower: Recalculate the transmission power parameters. |
135 | * This callback has to recalculate the TX power settings, | |
136 | * but does not need to write them to the hardware, yet. | |
137 | * Returns enum b43_txpwr_result to indicate whether the hardware | |
138 | * needs to be adjusted. | |
139 | * If B43_TXPWR_NEED_ADJUST is returned, @adjust_txpower | |
140 | * will be called later. | |
141 | * If the parameter "ignore_tssi" is true, the TSSI values should | |
142 | * be ignored and a recalculation of the power settings should be | |
143 | * done even if the TSSI values did not change. | |
36dbd954 | 144 | * This function may sleep, but should not. |
ef1a628d | 145 | * Must not be NULL. |
18c8adeb MB |
146 | * @adjust_txpower: Write the previously calculated TX power settings |
147 | * (from @recalc_txpower) to the hardware. | |
148 | * This function may sleep. | |
149 | * Can be NULL, if (and ONLY if) @recalc_txpower _always_ | |
150 | * returns B43_TXPWR_RES_DONE. | |
ef1a628d MB |
151 | * |
152 | * @pwork_15sec: Periodic work. Called every 15 seconds. | |
153 | * Can be NULL, if not required. | |
154 | * @pwork_60sec: Periodic work. Called every 60 seconds. | |
155 | * Can be NULL, if not required. | |
156 | */ | |
157 | struct b43_phy_operations { | |
158 | /* Initialisation */ | |
159 | int (*allocate)(struct b43_wldev *dev); | |
fb11137a MB |
160 | void (*free)(struct b43_wldev *dev); |
161 | void (*prepare_structs)(struct b43_wldev *dev); | |
162 | int (*prepare_hardware)(struct b43_wldev *dev); | |
ef1a628d MB |
163 | int (*init)(struct b43_wldev *dev); |
164 | void (*exit)(struct b43_wldev *dev); | |
165 | ||
166 | /* Register access */ | |
167 | u16 (*phy_read)(struct b43_wldev *dev, u16 reg); | |
168 | void (*phy_write)(struct b43_wldev *dev, u16 reg, u16 value); | |
68ec5329 | 169 | void (*phy_maskset)(struct b43_wldev *dev, u16 reg, u16 mask, u16 set); |
ef1a628d MB |
170 | u16 (*radio_read)(struct b43_wldev *dev, u16 reg); |
171 | void (*radio_write)(struct b43_wldev *dev, u16 reg, u16 value); | |
172 | ||
173 | /* Radio */ | |
174 | bool (*supports_hwpctl)(struct b43_wldev *dev); | |
19d337df | 175 | void (*software_rfkill)(struct b43_wldev *dev, bool blocked); |
cb24f57f | 176 | void (*switch_analog)(struct b43_wldev *dev, bool on); |
ef1a628d MB |
177 | int (*switch_channel)(struct b43_wldev *dev, unsigned int new_channel); |
178 | unsigned int (*get_default_chan)(struct b43_wldev *dev); | |
179 | void (*set_rx_antenna)(struct b43_wldev *dev, int antenna); | |
180 | int (*interf_mitigation)(struct b43_wldev *dev, | |
181 | enum b43_interference_mitigation new_mode); | |
182 | ||
183 | /* Transmission power adjustment */ | |
18c8adeb MB |
184 | enum b43_txpwr_result (*recalc_txpower)(struct b43_wldev *dev, |
185 | bool ignore_tssi); | |
186 | void (*adjust_txpower)(struct b43_wldev *dev); | |
ef1a628d MB |
187 | |
188 | /* Misc */ | |
189 | void (*pwork_15sec)(struct b43_wldev *dev); | |
190 | void (*pwork_60sec)(struct b43_wldev *dev); | |
191 | }; | |
192 | ||
193 | struct b43_phy_a; | |
194 | struct b43_phy_g; | |
195 | struct b43_phy_n; | |
e63e4363 | 196 | struct b43_phy_lp; |
d7520b1d | 197 | struct b43_phy_ht; |
58eb7ff3 | 198 | struct b43_phy_lcn; |
ef1a628d MB |
199 | |
200 | struct b43_phy { | |
201 | /* Hardware operation callbacks. */ | |
202 | const struct b43_phy_operations *ops; | |
203 | ||
204 | /* Most hardware context information is stored in the standard- | |
205 | * specific data structures pointed to by the pointers below. | |
206 | * Only one of them is valid (the currently enabled PHY). */ | |
207 | #ifdef CONFIG_B43_DEBUG | |
208 | /* No union for debug build to force NULL derefs in buggy code. */ | |
209 | struct { | |
210 | #else | |
211 | union { | |
212 | #endif | |
213 | /* A-PHY specific information */ | |
214 | struct b43_phy_a *a; | |
215 | /* G-PHY specific information */ | |
216 | struct b43_phy_g *g; | |
217 | /* N-PHY specific information */ | |
218 | struct b43_phy_n *n; | |
e63e4363 MB |
219 | /* LP-PHY specific information */ |
220 | struct b43_phy_lp *lp; | |
d7520b1d RM |
221 | /* HT-PHY specific information */ |
222 | struct b43_phy_ht *ht; | |
58eb7ff3 RM |
223 | /* LCN-PHY specific information */ |
224 | struct b43_phy_lcn *lcn; | |
ef1a628d MB |
225 | }; |
226 | ||
227 | /* Band support flags. */ | |
228 | bool supports_2ghz; | |
229 | bool supports_5ghz; | |
230 | ||
aa4c7b2a RM |
231 | /* HT info */ |
232 | bool is_40mhz; | |
233 | ||
ef1a628d MB |
234 | /* GMODE bit enabled? */ |
235 | bool gmode; | |
236 | ||
237 | /* Analog Type */ | |
238 | u8 analog; | |
239 | /* B43_PHYTYPE_ */ | |
240 | u8 type; | |
241 | /* PHY revision number. */ | |
242 | u8 rev; | |
243 | ||
15518080 RM |
244 | /* Count writes since last read */ |
245 | u8 writes_counter; | |
246 | ||
ef1a628d MB |
247 | /* Radio versioning */ |
248 | u16 radio_manuf; /* Radio manufacturer */ | |
249 | u16 radio_ver; /* Radio version */ | |
250 | u8 radio_rev; /* Radio revision */ | |
251 | ||
252 | /* Software state of the radio */ | |
253 | bool radio_on; | |
254 | ||
255 | /* Desired TX power level (in dBm). | |
256 | * This is set by the user and adjusted in b43_phy_xmitpower(). */ | |
18c8adeb | 257 | int desired_txpower; |
ef1a628d MB |
258 | |
259 | /* Hardware Power Control enabled? */ | |
260 | bool hardware_power_control; | |
261 | ||
18c8adeb MB |
262 | /* The time (in absolute jiffies) when the next TX power output |
263 | * check is needed. */ | |
264 | unsigned long next_txpwr_check_time; | |
265 | ||
e5c407f9 | 266 | /* Current channel */ |
ef1a628d | 267 | unsigned int channel; |
204a665b | 268 | u16 channel_freq; |
e5c407f9 | 269 | enum nl80211_channel_type channel_type; |
ef1a628d MB |
270 | |
271 | /* PHY TX errors counter. */ | |
272 | atomic_t txerr_cnt; | |
273 | ||
274 | #ifdef CONFIG_B43_DEBUG | |
591f3dc2 | 275 | /* PHY registers locked (w.r.t. firmware) */ |
ef1a628d | 276 | bool phy_locked; |
591f3dc2 MB |
277 | /* Radio registers locked (w.r.t. firmware) */ |
278 | bool radio_locked; | |
ef1a628d MB |
279 | #endif /* B43_DEBUG */ |
280 | }; | |
281 | ||
282 | ||
283 | /** | |
fb11137a MB |
284 | * b43_phy_allocate - Allocate PHY structs |
285 | * Allocate the PHY data structures, based on the current dev->phy.type | |
286 | */ | |
287 | int b43_phy_allocate(struct b43_wldev *dev); | |
288 | ||
289 | /** | |
290 | * b43_phy_free - Free PHY structs | |
ef1a628d | 291 | */ |
fb11137a | 292 | void b43_phy_free(struct b43_wldev *dev); |
ef1a628d MB |
293 | |
294 | /** | |
295 | * b43_phy_init - Initialise the PHY | |
296 | */ | |
297 | int b43_phy_init(struct b43_wldev *dev); | |
298 | ||
299 | /** | |
300 | * b43_phy_exit - Cleanup PHY | |
301 | */ | |
302 | void b43_phy_exit(struct b43_wldev *dev); | |
303 | ||
304 | /** | |
305 | * b43_has_hardware_pctl - Hardware Power Control supported? | |
306 | * Returns a boolean, whether hardware power control is supported. | |
307 | */ | |
308 | bool b43_has_hardware_pctl(struct b43_wldev *dev); | |
309 | ||
310 | /** | |
311 | * b43_phy_read - 16bit PHY register read access | |
312 | */ | |
313 | u16 b43_phy_read(struct b43_wldev *dev, u16 reg); | |
314 | ||
315 | /** | |
316 | * b43_phy_write - 16bit PHY register write access | |
317 | */ | |
318 | void b43_phy_write(struct b43_wldev *dev, u16 reg, u16 value); | |
319 | ||
738f0f43 GS |
320 | /** |
321 | * b43_phy_copy - copy contents of 16bit PHY register to another | |
322 | */ | |
323 | void b43_phy_copy(struct b43_wldev *dev, u16 destreg, u16 srcreg); | |
324 | ||
ef1a628d MB |
325 | /** |
326 | * b43_phy_mask - Mask a PHY register with a mask | |
327 | */ | |
328 | void b43_phy_mask(struct b43_wldev *dev, u16 offset, u16 mask); | |
329 | ||
330 | /** | |
331 | * b43_phy_set - OR a PHY register with a bitmap | |
332 | */ | |
333 | void b43_phy_set(struct b43_wldev *dev, u16 offset, u16 set); | |
334 | ||
335 | /** | |
336 | * b43_phy_maskset - Mask and OR a PHY register with a mask and bitmap | |
337 | */ | |
338 | void b43_phy_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set); | |
339 | ||
340 | /** | |
341 | * b43_radio_read - 16bit Radio register read access | |
342 | */ | |
343 | u16 b43_radio_read(struct b43_wldev *dev, u16 reg); | |
344 | #define b43_radio_read16 b43_radio_read /* DEPRECATED */ | |
345 | ||
346 | /** | |
347 | * b43_radio_write - 16bit Radio register write access | |
348 | */ | |
349 | void b43_radio_write(struct b43_wldev *dev, u16 reg, u16 value); | |
350 | #define b43_radio_write16 b43_radio_write /* DEPRECATED */ | |
351 | ||
352 | /** | |
353 | * b43_radio_mask - Mask a 16bit radio register with a mask | |
354 | */ | |
355 | void b43_radio_mask(struct b43_wldev *dev, u16 offset, u16 mask); | |
356 | ||
357 | /** | |
358 | * b43_radio_set - OR a 16bit radio register with a bitmap | |
359 | */ | |
360 | void b43_radio_set(struct b43_wldev *dev, u16 offset, u16 set); | |
361 | ||
362 | /** | |
363 | * b43_radio_maskset - Mask and OR a radio register with a mask and bitmap | |
364 | */ | |
365 | void b43_radio_maskset(struct b43_wldev *dev, u16 offset, u16 mask, u16 set); | |
366 | ||
367 | /** | |
368 | * b43_radio_lock - Lock firmware radio register access | |
369 | */ | |
370 | void b43_radio_lock(struct b43_wldev *dev); | |
371 | ||
372 | /** | |
373 | * b43_radio_unlock - Unlock firmware radio register access | |
374 | */ | |
375 | void b43_radio_unlock(struct b43_wldev *dev); | |
376 | ||
377 | /** | |
378 | * b43_phy_lock - Lock firmware PHY register access | |
379 | */ | |
380 | void b43_phy_lock(struct b43_wldev *dev); | |
381 | ||
382 | /** | |
383 | * b43_phy_unlock - Unlock firmware PHY register access | |
384 | */ | |
385 | void b43_phy_unlock(struct b43_wldev *dev); | |
386 | ||
387 | /** | |
388 | * b43_switch_channel - Switch to another channel | |
389 | */ | |
390 | int b43_switch_channel(struct b43_wldev *dev, unsigned int new_channel); | |
391 | /** | |
392 | * B43_DEFAULT_CHANNEL - Switch to the default channel. | |
393 | */ | |
394 | #define B43_DEFAULT_CHANNEL UINT_MAX | |
395 | ||
396 | /** | |
397 | * b43_software_rfkill - Turn the radio ON or OFF in software. | |
398 | */ | |
19d337df | 399 | void b43_software_rfkill(struct b43_wldev *dev, bool blocked); |
ef1a628d | 400 | |
18c8adeb MB |
401 | /** |
402 | * b43_phy_txpower_check - Check TX power output. | |
403 | * | |
404 | * Compare the current TX power output to the desired power emission | |
405 | * and schedule an adjustment in case it mismatches. | |
18c8adeb MB |
406 | * |
407 | * @flags: OR'ed enum b43_phy_txpower_check_flags flags. | |
408 | * See the docs below. | |
409 | */ | |
410 | void b43_phy_txpower_check(struct b43_wldev *dev, unsigned int flags); | |
411 | /** | |
412 | * enum b43_phy_txpower_check_flags - Flags for b43_phy_txpower_check() | |
413 | * | |
414 | * @B43_TXPWR_IGNORE_TIME: Ignore the schedule time and force-redo | |
415 | * the check now. | |
416 | * @B43_TXPWR_IGNORE_TSSI: Redo the recalculation, even if the average | |
417 | * TSSI did not change. | |
418 | */ | |
419 | enum b43_phy_txpower_check_flags { | |
420 | B43_TXPWR_IGNORE_TIME = (1 << 0), | |
421 | B43_TXPWR_IGNORE_TSSI = (1 << 1), | |
422 | }; | |
423 | ||
424 | struct work_struct; | |
425 | void b43_phy_txpower_adjust_work(struct work_struct *work); | |
426 | ||
427 | /** | |
428 | * b43_phy_shm_tssi_read - Read the average of the last 4 TSSI from SHM. | |
429 | * | |
430 | * @shm_offset: The SHM address to read the values from. | |
431 | * | |
432 | * Returns the average of the 4 TSSI values, or a negative error code. | |
433 | */ | |
434 | int b43_phy_shm_tssi_read(struct b43_wldev *dev, u16 shm_offset); | |
435 | ||
cb24f57f MB |
436 | /** |
437 | * b43_phy_switch_analog_generic - Generic PHY operation for switching the Analog. | |
438 | * | |
439 | * It does the switching based on the PHY0 core register. | |
440 | * Do _not_ call this directly. Only use it as a switch_analog callback | |
441 | * for struct b43_phy_operations. | |
442 | */ | |
443 | void b43_phyop_switch_analog_generic(struct b43_wldev *dev, bool on); | |
444 | ||
abc1f7cd RM |
445 | bool b43_channel_type_is_40mhz(enum nl80211_channel_type channel_type); |
446 | ||
f6a3e99d RM |
447 | void b43_phy_force_clock(struct b43_wldev *dev, bool force); |
448 | ||
98650454 | 449 | struct b43_c32 b43_cordic(int theta); |
18c8adeb | 450 | |
ef1a628d | 451 | #endif /* LINUX_B43_PHY_COMMON_H_ */ |