1 #ifndef B43legacy_H_
2 #define B43legacy_H_
3 
4 #include <linux/hw_random.h>
5 #include <linux/kernel.h>
6 #include <linux/spinlock.h>
7 #include <linux/interrupt.h>
8 #include <linux/stringify.h>
9 #include <linux/netdevice.h>
10 #include <linux/pci.h>
11 #include <linux/atomic.h>
12 #include <linux/io.h>
13 
14 #include <linux/ssb/ssb.h>
15 #include <linux/ssb/ssb_driver_chipcommon.h>
16 #include <linux/completion.h>
17 
18 #include <net/mac80211.h>
19 
20 #include "debugfs.h"
21 #include "leds.h"
22 #include "rfkill.h"
23 #include "phy.h"
24 
25 
26 #define B43legacy_IRQWAIT_MAX_RETRIES	20
27 
28 /* MMIO offsets */
29 #define B43legacy_MMIO_DMA0_REASON	0x20
30 #define B43legacy_MMIO_DMA0_IRQ_MASK	0x24
31 #define B43legacy_MMIO_DMA1_REASON	0x28
32 #define B43legacy_MMIO_DMA1_IRQ_MASK	0x2C
33 #define B43legacy_MMIO_DMA2_REASON	0x30
34 #define B43legacy_MMIO_DMA2_IRQ_MASK	0x34
35 #define B43legacy_MMIO_DMA3_REASON	0x38
36 #define B43legacy_MMIO_DMA3_IRQ_MASK	0x3C
37 #define B43legacy_MMIO_DMA4_REASON	0x40
38 #define B43legacy_MMIO_DMA4_IRQ_MASK	0x44
39 #define B43legacy_MMIO_DMA5_REASON	0x48
40 #define B43legacy_MMIO_DMA5_IRQ_MASK	0x4C
41 #define B43legacy_MMIO_MACCTL		0x120	/* MAC control */
42 #define B43legacy_MMIO_MACCMD		0x124	/* MAC command */
43 #define B43legacy_MMIO_GEN_IRQ_REASON	0x128
44 #define B43legacy_MMIO_GEN_IRQ_MASK	0x12C
45 #define B43legacy_MMIO_RAM_CONTROL	0x130
46 #define B43legacy_MMIO_RAM_DATA		0x134
47 #define B43legacy_MMIO_PS_STATUS		0x140
48 #define B43legacy_MMIO_RADIO_HWENABLED_HI	0x158
49 #define B43legacy_MMIO_SHM_CONTROL	0x160
50 #define B43legacy_MMIO_SHM_DATA		0x164
51 #define B43legacy_MMIO_SHM_DATA_UNALIGNED	0x166
52 #define B43legacy_MMIO_XMITSTAT_0		0x170
53 #define B43legacy_MMIO_XMITSTAT_1		0x174
54 #define B43legacy_MMIO_REV3PLUS_TSF_LOW	0x180 /* core rev >= 3 only */
55 #define B43legacy_MMIO_REV3PLUS_TSF_HIGH	0x184 /* core rev >= 3 only */
56 #define B43legacy_MMIO_TSF_CFP_REP	0x188
57 #define B43legacy_MMIO_TSF_CFP_START	0x18C
58 /* 32-bit DMA */
59 #define B43legacy_MMIO_DMA32_BASE0	0x200
60 #define B43legacy_MMIO_DMA32_BASE1	0x220
61 #define B43legacy_MMIO_DMA32_BASE2	0x240
62 #define B43legacy_MMIO_DMA32_BASE3	0x260
63 #define B43legacy_MMIO_DMA32_BASE4	0x280
64 #define B43legacy_MMIO_DMA32_BASE5	0x2A0
65 /* 64-bit DMA */
66 #define B43legacy_MMIO_DMA64_BASE0	0x200
67 #define B43legacy_MMIO_DMA64_BASE1	0x240
68 #define B43legacy_MMIO_DMA64_BASE2	0x280
69 #define B43legacy_MMIO_DMA64_BASE3	0x2C0
70 #define B43legacy_MMIO_DMA64_BASE4	0x300
71 #define B43legacy_MMIO_DMA64_BASE5	0x340
72 /* PIO */
73 #define B43legacy_MMIO_PIO1_BASE		0x300
74 #define B43legacy_MMIO_PIO2_BASE		0x310
75 #define B43legacy_MMIO_PIO3_BASE		0x320
76 #define B43legacy_MMIO_PIO4_BASE		0x330
77 
78 #define B43legacy_MMIO_PHY_VER		0x3E0
79 #define B43legacy_MMIO_PHY_RADIO		0x3E2
80 #define B43legacy_MMIO_PHY0		0x3E6
81 #define B43legacy_MMIO_ANTENNA		0x3E8
82 #define B43legacy_MMIO_CHANNEL		0x3F0
83 #define B43legacy_MMIO_CHANNEL_EXT	0x3F4
84 #define B43legacy_MMIO_RADIO_CONTROL	0x3F6
85 #define B43legacy_MMIO_RADIO_DATA_HIGH	0x3F8
86 #define B43legacy_MMIO_RADIO_DATA_LOW	0x3FA
87 #define B43legacy_MMIO_PHY_CONTROL	0x3FC
88 #define B43legacy_MMIO_PHY_DATA		0x3FE
89 #define B43legacy_MMIO_MACFILTER_CONTROL	0x420
90 #define B43legacy_MMIO_MACFILTER_DATA	0x422
91 #define B43legacy_MMIO_RCMTA_COUNT	0x43C /* Receive Match Transmitter Addr */
92 #define B43legacy_MMIO_RADIO_HWENABLED_LO	0x49A
93 #define B43legacy_MMIO_GPIO_CONTROL	0x49C
94 #define B43legacy_MMIO_GPIO_MASK		0x49E
95 #define B43legacy_MMIO_TSF_CFP_PRETBTT	0x612
96 #define B43legacy_MMIO_TSF_0		0x632 /* core rev < 3 only */
97 #define B43legacy_MMIO_TSF_1		0x634 /* core rev < 3 only */
98 #define B43legacy_MMIO_TSF_2		0x636 /* core rev < 3 only */
99 #define B43legacy_MMIO_TSF_3		0x638 /* core rev < 3 only */
100 #define B43legacy_MMIO_RNG		0x65A
101 #define B43legacy_MMIO_POWERUP_DELAY	0x6A8
102 
103 /* SPROM boardflags_lo values */
104 #define B43legacy_BFL_PACTRL		0x0002
105 #define B43legacy_BFL_RSSI		0x0008
106 #define B43legacy_BFL_EXTLNA		0x1000
107 
108 /* GPIO register offset, in both ChipCommon and PCI core. */
109 #define B43legacy_GPIO_CONTROL		0x6c
110 
111 /* SHM Routing */
112 #define	B43legacy_SHM_SHARED		0x0001
113 #define	B43legacy_SHM_WIRELESS		0x0002
114 #define	B43legacy_SHM_HW		0x0004
115 #define	B43legacy_SHM_UCODE		0x0300
116 
117 /* SHM Routing modifiers */
118 #define B43legacy_SHM_AUTOINC_R		0x0200 /* Read Auto-increment */
119 #define B43legacy_SHM_AUTOINC_W		0x0100 /* Write Auto-increment */
120 #define B43legacy_SHM_AUTOINC_RW	(B43legacy_SHM_AUTOINC_R | \
121 					 B43legacy_SHM_AUTOINC_W)
122 
123 /* Misc SHM_SHARED offsets */
124 #define B43legacy_SHM_SH_WLCOREREV	0x0016 /* 802.11 core revision */
125 #define B43legacy_SHM_SH_HOSTFLO	0x005E /* Hostflags ucode opts (low) */
126 #define B43legacy_SHM_SH_HOSTFHI	0x0060 /* Hostflags ucode opts (high) */
127 /* SHM_SHARED crypto engine */
128 #define B43legacy_SHM_SH_KEYIDXBLOCK	0x05D4 /* Key index/algorithm block */
129 /* SHM_SHARED beacon/AP variables */
130 #define B43legacy_SHM_SH_DTIMP		0x0012 /* DTIM period */
131 #define B43legacy_SHM_SH_BTL0		0x0018 /* Beacon template length 0 */
132 #define B43legacy_SHM_SH_BTL1		0x001A /* Beacon template length 1 */
133 #define B43legacy_SHM_SH_BTSFOFF	0x001C /* Beacon TSF offset */
134 #define B43legacy_SHM_SH_TIMPOS		0x001E /* TIM position in beacon */
135 #define B43legacy_SHM_SH_BEACPHYCTL	0x0054 /* Beacon PHY TX control word */
136 /* SHM_SHARED ACK/CTS control */
137 #define B43legacy_SHM_SH_ACKCTSPHYCTL	0x0022 /* ACK/CTS PHY control word */
138 /* SHM_SHARED probe response variables */
139 #define B43legacy_SHM_SH_PRTLEN		0x004A /* Probe Response template length */
140 #define B43legacy_SHM_SH_PRMAXTIME	0x0074 /* Probe Response max time */
141 #define B43legacy_SHM_SH_PRPHYCTL	0x0188 /* Probe Resp PHY TX control */
142 /* SHM_SHARED rate tables */
143 #define B43legacy_SHM_SH_OFDMDIRECT	0x0480 /* Pointer to OFDM direct map */
144 #define B43legacy_SHM_SH_OFDMBASIC	0x04A0 /* Pointer to OFDM basic rate map */
145 #define B43legacy_SHM_SH_CCKDIRECT	0x04C0 /* Pointer to CCK direct map */
146 #define B43legacy_SHM_SH_CCKBASIC	0x04E0 /* Pointer to CCK basic rate map */
147 /* SHM_SHARED microcode soft registers */
148 #define B43legacy_SHM_SH_UCODEREV	0x0000 /* Microcode revision */
149 #define B43legacy_SHM_SH_UCODEPATCH	0x0002 /* Microcode patchlevel */
150 #define B43legacy_SHM_SH_UCODEDATE	0x0004 /* Microcode date */
151 #define B43legacy_SHM_SH_UCODETIME	0x0006 /* Microcode time */
152 #define B43legacy_SHM_SH_SPUWKUP	0x0094 /* pre-wakeup for synth PU in us */
153 #define B43legacy_SHM_SH_PRETBTT	0x0096 /* pre-TBTT in us */
154 
155 #define B43legacy_UCODEFLAGS_OFFSET     0x005E
156 
157 /* Hardware Radio Enable masks */
158 #define B43legacy_MMIO_RADIO_HWENABLED_HI_MASK (1 << 16)
159 #define B43legacy_MMIO_RADIO_HWENABLED_LO_MASK (1 << 4)
160 
161 /* HostFlags. See b43legacy_hf_read/write() */
162 #define B43legacy_HF_SYMW		0x00000002 /* G-PHY SYM workaround */
163 #define B43legacy_HF_GDCW		0x00000020 /* G-PHY DV cancel filter */
164 #define B43legacy_HF_OFDMPABOOST	0x00000040 /* Enable PA boost OFDM */
165 #define B43legacy_HF_EDCF		0x00000100 /* on if WME/MAC suspended */
166 
167 /* MacFilter offsets. */
168 #define B43legacy_MACFILTER_SELF	0x0000
169 #define B43legacy_MACFILTER_BSSID	0x0003
170 #define B43legacy_MACFILTER_MAC		0x0010
171 
172 /* PHYVersioning */
173 #define B43legacy_PHYTYPE_B		0x01
174 #define B43legacy_PHYTYPE_G		0x02
175 
176 /* PHYRegisters */
177 #define B43legacy_PHY_G_LO_CONTROL	0x0810
178 #define B43legacy_PHY_ILT_G_CTRL	0x0472
179 #define B43legacy_PHY_ILT_G_DATA1	0x0473
180 #define B43legacy_PHY_ILT_G_DATA2	0x0474
181 #define B43legacy_PHY_G_PCTL		0x0029
182 #define B43legacy_PHY_RADIO_BITFIELD	0x0401
183 #define B43legacy_PHY_G_CRS		0x0429
184 #define B43legacy_PHY_NRSSILT_CTRL	0x0803
185 #define B43legacy_PHY_NRSSILT_DATA	0x0804
186 
187 /* RadioRegisters */
188 #define B43legacy_RADIOCTL_ID		0x01
189 
190 /* MAC Control bitfield */
191 #define B43legacy_MACCTL_ENABLED	0x00000001 /* MAC Enabled */
192 #define B43legacy_MACCTL_PSM_RUN	0x00000002 /* Run Microcode */
193 #define B43legacy_MACCTL_PSM_JMP0	0x00000004 /* Microcode jump to 0 */
194 #define B43legacy_MACCTL_SHM_ENABLED	0x00000100 /* SHM Enabled */
195 #define B43legacy_MACCTL_IHR_ENABLED	0x00000400 /* IHR Region Enabled */
196 #define B43legacy_MACCTL_BE		0x00010000 /* Big Endian mode */
197 #define B43legacy_MACCTL_INFRA		0x00020000 /* Infrastructure mode */
198 #define B43legacy_MACCTL_AP		0x00040000 /* AccessPoint mode */
199 #define B43legacy_MACCTL_RADIOLOCK	0x00080000 /* Radio lock */
200 #define B43legacy_MACCTL_BEACPROMISC	0x00100000 /* Beacon Promiscuous */
201 #define B43legacy_MACCTL_KEEP_BADPLCP	0x00200000 /* Keep bad PLCP frames */
202 #define B43legacy_MACCTL_KEEP_CTL	0x00400000 /* Keep control frames */
203 #define B43legacy_MACCTL_KEEP_BAD	0x00800000 /* Keep bad frames (FCS) */
204 #define B43legacy_MACCTL_PROMISC	0x01000000 /* Promiscuous mode */
205 #define B43legacy_MACCTL_HWPS		0x02000000 /* Hardware Power Saving */
206 #define B43legacy_MACCTL_AWAKE		0x04000000 /* Device is awake */
207 #define B43legacy_MACCTL_TBTTHOLD	0x10000000 /* TBTT Hold */
208 #define B43legacy_MACCTL_GMODE		0x80000000 /* G Mode */
209 
210 /* MAC Command bitfield */
211 #define B43legacy_MACCMD_BEACON0_VALID	0x00000001 /* Beacon 0 in template RAM is busy/valid */
212 #define B43legacy_MACCMD_BEACON1_VALID	0x00000002 /* Beacon 1 in template RAM is busy/valid */
213 #define B43legacy_MACCMD_DFQ_VALID	0x00000004 /* Directed frame queue valid (IBSS PS mode, ATIM) */
214 #define B43legacy_MACCMD_CCA		0x00000008 /* Clear channel assessment */
215 #define B43legacy_MACCMD_BGNOISE	0x00000010 /* Background noise */
216 
217 /* 802.11 core specific TM State Low flags */
218 #define B43legacy_TMSLOW_GMODE		0x20000000 /* G Mode Enable */
219 #define B43legacy_TMSLOW_PLLREFSEL	0x00200000 /* PLL Freq Ref Select */
220 #define B43legacy_TMSLOW_MACPHYCLKEN	0x00100000 /* MAC PHY Clock Ctrl Enbl */
221 #define B43legacy_TMSLOW_PHYRESET	0x00080000 /* PHY Reset */
222 #define B43legacy_TMSLOW_PHYCLKEN	0x00040000 /* PHY Clock Enable */
223 
224 /* 802.11 core specific TM State High flags */
225 #define B43legacy_TMSHIGH_FCLOCK	0x00040000 /* Fast Clock Available */
226 #define B43legacy_TMSHIGH_GPHY		0x00010000 /* G-PHY avail (rev >= 5) */
227 
228 #define B43legacy_UCODEFLAG_AUTODIV       0x0001
229 
230 /* Generic-Interrupt reasons. */
231 #define B43legacy_IRQ_MAC_SUSPENDED	0x00000001
232 #define B43legacy_IRQ_BEACON		0x00000002
233 #define B43legacy_IRQ_TBTT_INDI		0x00000004 /* Target Beacon Transmit Time */
234 #define B43legacy_IRQ_BEACON_TX_OK	0x00000008
235 #define B43legacy_IRQ_BEACON_CANCEL	0x00000010
236 #define B43legacy_IRQ_ATIM_END		0x00000020
237 #define B43legacy_IRQ_PMQ		0x00000040
238 #define B43legacy_IRQ_PIO_WORKAROUND	0x00000100
239 #define B43legacy_IRQ_MAC_TXERR		0x00000200
240 #define B43legacy_IRQ_PHY_TXERR		0x00000800
241 #define B43legacy_IRQ_PMEVENT		0x00001000
242 #define B43legacy_IRQ_TIMER0		0x00002000
243 #define B43legacy_IRQ_TIMER1		0x00004000
244 #define B43legacy_IRQ_DMA		0x00008000
245 #define B43legacy_IRQ_TXFIFO_FLUSH_OK	0x00010000
246 #define B43legacy_IRQ_CCA_MEASURE_OK	0x00020000
247 #define B43legacy_IRQ_NOISESAMPLE_OK	0x00040000
248 #define B43legacy_IRQ_UCODE_DEBUG	0x08000000
249 #define B43legacy_IRQ_RFKILL		0x10000000
250 #define B43legacy_IRQ_TX_OK		0x20000000
251 #define B43legacy_IRQ_PHY_G_CHANGED	0x40000000
252 #define B43legacy_IRQ_TIMEOUT		0x80000000
253 
254 #define B43legacy_IRQ_ALL		0xFFFFFFFF
255 #define B43legacy_IRQ_MASKTEMPLATE	(B43legacy_IRQ_MAC_SUSPENDED |	\
256 					 B43legacy_IRQ_TBTT_INDI |	\
257 					 B43legacy_IRQ_ATIM_END |	\
258 					 B43legacy_IRQ_PMQ |		\
259 					 B43legacy_IRQ_MAC_TXERR |	\
260 					 B43legacy_IRQ_PHY_TXERR |	\
261 					 B43legacy_IRQ_DMA |		\
262 					 B43legacy_IRQ_TXFIFO_FLUSH_OK | \
263 					 B43legacy_IRQ_NOISESAMPLE_OK | \
264 					 B43legacy_IRQ_UCODE_DEBUG |	\
265 					 B43legacy_IRQ_RFKILL |		\
266 					 B43legacy_IRQ_TX_OK)
267 
268 /* Device specific rate values.
269  * The actual values defined here are (rate_in_mbps * 2).
270  * Some code depends on this. Don't change it. */
271 #define B43legacy_CCK_RATE_1MB		2
272 #define B43legacy_CCK_RATE_2MB		4
273 #define B43legacy_CCK_RATE_5MB		11
274 #define B43legacy_CCK_RATE_11MB		22
275 #define B43legacy_OFDM_RATE_6MB		12
276 #define B43legacy_OFDM_RATE_9MB		18
277 #define B43legacy_OFDM_RATE_12MB	24
278 #define B43legacy_OFDM_RATE_18MB	36
279 #define B43legacy_OFDM_RATE_24MB	48
280 #define B43legacy_OFDM_RATE_36MB	72
281 #define B43legacy_OFDM_RATE_48MB	96
282 #define B43legacy_OFDM_RATE_54MB	108
283 /* Convert a b43legacy rate value to a rate in 100kbps */
284 #define B43legacy_RATE_TO_100KBPS(rate)	(((rate) * 10) / 2)
285 
286 
287 #define B43legacy_DEFAULT_SHORT_RETRY_LIMIT	7
288 #define B43legacy_DEFAULT_LONG_RETRY_LIMIT	4
289 
290 #define B43legacy_PHY_TX_BADNESS_LIMIT		1000
291 
292 /* Max size of a security key */
293 #define B43legacy_SEC_KEYSIZE		16
294 /* Security algorithms. */
295 enum {
296 	B43legacy_SEC_ALGO_NONE = 0, /* unencrypted, as of TX header. */
297 	B43legacy_SEC_ALGO_WEP40,
298 	B43legacy_SEC_ALGO_TKIP,
299 	B43legacy_SEC_ALGO_AES,
300 	B43legacy_SEC_ALGO_WEP104,
301 	B43legacy_SEC_ALGO_AES_LEGACY,
302 };
303 
304 /* Core Information Registers */
305 #define B43legacy_CIR_BASE                0xf00
306 #define B43legacy_CIR_SBTPSFLAG           (B43legacy_CIR_BASE + 0x18)
307 #define B43legacy_CIR_SBIMSTATE           (B43legacy_CIR_BASE + 0x90)
308 #define B43legacy_CIR_SBINTVEC            (B43legacy_CIR_BASE + 0x94)
309 #define B43legacy_CIR_SBTMSTATELOW        (B43legacy_CIR_BASE + 0x98)
310 #define B43legacy_CIR_SBTMSTATEHIGH       (B43legacy_CIR_BASE + 0x9c)
311 #define B43legacy_CIR_SBIMCONFIGLOW       (B43legacy_CIR_BASE + 0xa8)
312 #define B43legacy_CIR_SB_ID_HI            (B43legacy_CIR_BASE + 0xfc)
313 
314 /* sbtmstatehigh state flags */
315 #define B43legacy_SBTMSTATEHIGH_SERROR		0x00000001
316 #define B43legacy_SBTMSTATEHIGH_BUSY		0x00000004
317 #define B43legacy_SBTMSTATEHIGH_TIMEOUT		0x00000020
318 #define B43legacy_SBTMSTATEHIGH_G_PHY_AVAIL	0x00010000
319 #define B43legacy_SBTMSTATEHIGH_COREFLAGS	0x1FFF0000
320 #define B43legacy_SBTMSTATEHIGH_DMA64BIT	0x10000000
321 #define B43legacy_SBTMSTATEHIGH_GATEDCLK	0x20000000
322 #define B43legacy_SBTMSTATEHIGH_BISTFAILED	0x40000000
323 #define B43legacy_SBTMSTATEHIGH_BISTCOMPLETE	0x80000000
324 
325 /* sbimstate flags */
326 #define B43legacy_SBIMSTATE_IB_ERROR		0x20000
327 #define B43legacy_SBIMSTATE_TIMEOUT		0x40000
328 
329 #define PFX		KBUILD_MODNAME ": "
330 #ifdef assert
331 # undef assert
332 #endif
333 #ifdef CONFIG_B43LEGACY_DEBUG
334 # define B43legacy_WARN_ON(x)	WARN_ON(x)
335 # define B43legacy_BUG_ON(expr)						\
336 	do {								\
337 		if (unlikely((expr))) {					\
338 			printk(KERN_INFO PFX "Test (%s) failed\n",	\
339 					      #expr);			\
340 			BUG_ON(expr);					\
341 		}							\
342 	} while (0)
343 # define B43legacy_DEBUG	1
344 #else
345 /* This will evaluate the argument even if debugging is disabled. */
346 static inline bool __b43legacy_warn_on_dummy(bool x) { return x; }
347 # define B43legacy_WARN_ON(x)	__b43legacy_warn_on_dummy(unlikely(!!(x)))
348 # define B43legacy_BUG_ON(x)	do { /* nothing */ } while (0)
349 # define B43legacy_DEBUG	0
350 #endif
351 
352 
353 struct net_device;
354 struct pci_dev;
355 struct b43legacy_dmaring;
356 struct b43legacy_pioqueue;
357 
358 /* The firmware file header */
359 #define B43legacy_FW_TYPE_UCODE	'u'
360 #define B43legacy_FW_TYPE_PCM	'p'
361 #define B43legacy_FW_TYPE_IV	'i'
362 struct b43legacy_fw_header {
363 	/* File type */
364 	u8 type;
365 	/* File format version */
366 	u8 ver;
367 	u8 __padding[2];
368 	/* Size of the data. For ucode and PCM this is in bytes.
369 	 * For IV this is number-of-ivs. */
370 	__be32 size;
371 } __packed;
372 
373 /* Initial Value file format */
374 #define B43legacy_IV_OFFSET_MASK	0x7FFF
375 #define B43legacy_IV_32BIT		0x8000
376 struct b43legacy_iv {
377 	__be16 offset_size;
378 	union {
379 		__be16 d16;
380 		__be32 d32;
381 	} data __packed;
382 } __packed;
383 
384 #define B43legacy_PHYMODE(phytype)	(1 << (phytype))
385 #define B43legacy_PHYMODE_B		B43legacy_PHYMODE	\
386 					((B43legacy_PHYTYPE_B))
387 #define B43legacy_PHYMODE_G		B43legacy_PHYMODE	\
388 					((B43legacy_PHYTYPE_G))
389 
390 /* Value pair to measure the LocalOscillator. */
391 struct b43legacy_lopair {
392 	s8 low;
393 	s8 high;
394 	u8 used:1;
395 };
396 #define B43legacy_LO_COUNT	(14*4)
397 
398 struct b43legacy_phy {
399 	/* Possible PHYMODEs on this PHY */
400 	u8 possible_phymodes;
401 	/* GMODE bit enabled in MACCTL? */
402 	bool gmode;
403 
404 	/* Analog Type */
405 	u8 analog;
406 	/* B43legacy_PHYTYPE_ */
407 	u8 type;
408 	/* PHY revision number. */
409 	u8 rev;
410 
411 	u16 antenna_diversity;
412 	u16 savedpctlreg;
413 	/* Radio versioning */
414 	u16 radio_manuf;	/* Radio manufacturer */
415 	u16 radio_ver;		/* Radio version */
416 	u8 calibrated:1;
417 	u8 radio_rev;		/* Radio revision */
418 
419 	bool dyn_tssi_tbl;	/* tssi2dbm is kmalloc()ed. */
420 
421 	/* ACI (adjacent channel interference) flags. */
422 	bool aci_enable;
423 	bool aci_wlan_automatic;
424 	bool aci_hw_rssi;
425 
426 	/* Radio switched on/off */
427 	bool radio_on;
428 	struct {
429 		/* Values saved when turning the radio off.
430 		 * They are needed when turning it on again. */
431 		bool valid;
432 		u16 rfover;
433 		u16 rfoverval;
434 	} radio_off_context;
435 
436 	u16 minlowsig[2];
437 	u16 minlowsigpos[2];
438 
439 	/* LO Measurement Data.
440 	 * Use b43legacy_get_lopair() to get a value.
441 	 */
442 	struct b43legacy_lopair *_lo_pairs;
443 	/* TSSI to dBm table in use */
444 	const s8 *tssi2dbm;
445 	/* idle TSSI value */
446 	s8 idle_tssi;
447 	/* Target idle TSSI */
448 	int tgt_idle_tssi;
449 	/* Current idle TSSI */
450 	int cur_idle_tssi;
451 
452 	/* LocalOscillator control values. */
453 	struct b43legacy_txpower_lo_control *lo_control;
454 	/* Values from b43legacy_calc_loopback_gain() */
455 	s16 max_lb_gain;	/* Maximum Loopback gain in hdB */
456 	s16 trsw_rx_gain;	/* TRSW RX gain in hdB */
457 	s16 lna_lod_gain;	/* LNA lod */
458 	s16 lna_gain;		/* LNA */
459 	s16 pga_gain;		/* PGA */
460 
461 	/* Desired TX power level (in dBm). This is set by the user and
462 	 * adjusted in b43legacy_phy_xmitpower(). */
463 	u8 power_level;
464 
465 	/* Values from b43legacy_calc_loopback_gain() */
466 	u16 loopback_gain[2];
467 
468 	/* TX Power control values. */
469 	/* B/G PHY */
470 	struct {
471 		/* Current Radio Attenuation for TXpower recalculation. */
472 		u16 rfatt;
473 		/* Current Baseband Attenuation for TXpower recalculation. */
474 		u16 bbatt;
475 		/* Current TXpower control value for TXpower recalculation. */
476 		u16 txctl1;
477 		u16 txctl2;
478 	};
479 	/* A PHY */
480 	struct {
481 		u16 txpwr_offset;
482 	};
483 
484 	/* Current Interference Mitigation mode */
485 	int interfmode;
486 	/* Stack of saved values from the Interference Mitigation code.
487 	 * Each value in the stack is laid out as follows:
488 	 * bit 0-11:  offset
489 	 * bit 12-15: register ID
490 	 * bit 16-32: value
491 	 * register ID is: 0x1 PHY, 0x2 Radio, 0x3 ILT
492 	 */
493 #define B43legacy_INTERFSTACK_SIZE	26
494 	u32 interfstack[B43legacy_INTERFSTACK_SIZE];
495 
496 	/* Saved values from the NRSSI Slope calculation */
497 	s16 nrssi[2];
498 	s32 nrssislope;
499 	/* In memory nrssi lookup table. */
500 	s8 nrssi_lt[64];
501 
502 	/* current channel */
503 	u8 channel;
504 
505 	u16 lofcal;
506 
507 	u16 initval;
508 
509 	/* PHY TX errors counter. */
510 	atomic_t txerr_cnt;
511 
512 #if B43legacy_DEBUG
513 	/* Manual TX-power control enabled? */
514 	bool manual_txpower_control;
515 	/* PHY registers locked by b43legacy_phy_lock()? */
516 	bool phy_locked;
517 #endif /* B43legacy_DEBUG */
518 };
519 
520 /* Data structures for DMA transmission, per 80211 core. */
521 struct b43legacy_dma {
522 	struct b43legacy_dmaring *tx_ring0;
523 	struct b43legacy_dmaring *tx_ring1;
524 	struct b43legacy_dmaring *tx_ring2;
525 	struct b43legacy_dmaring *tx_ring3;
526 	struct b43legacy_dmaring *tx_ring4;
527 	struct b43legacy_dmaring *tx_ring5;
528 
529 	struct b43legacy_dmaring *rx_ring0;
530 	struct b43legacy_dmaring *rx_ring3; /* only on core.rev < 5 */
531 
532 	u32 translation; /* Routing bits */
533 };
534 
535 /* Data structures for PIO transmission, per 80211 core. */
536 struct b43legacy_pio {
537 	struct b43legacy_pioqueue *queue0;
538 	struct b43legacy_pioqueue *queue1;
539 	struct b43legacy_pioqueue *queue2;
540 	struct b43legacy_pioqueue *queue3;
541 };
542 
543 /* Context information for a noise calculation (Link Quality). */
544 struct b43legacy_noise_calculation {
545 	u8 channel_at_start;
546 	bool calculation_running;
547 	u8 nr_samples;
548 	s8 samples[8][4];
549 };
550 
551 struct b43legacy_stats {
552 	u8 link_noise;
553 	/* Store the last TX/RX times here for updating the leds. */
554 	unsigned long last_tx;
555 	unsigned long last_rx;
556 };
557 
558 struct b43legacy_key {
559 	void *keyconf;
560 	bool enabled;
561 	u8 algorithm;
562 };
563 
564 #define B43legacy_QOS_QUEUE_NUM	4
565 
566 struct b43legacy_wldev;
567 
568 /* QOS parameters for a queue. */
569 struct b43legacy_qos_params {
570 	/* The QOS parameters */
571 	struct ieee80211_tx_queue_params p;
572 };
573 
574 /* Data structure for the WLAN parts (802.11 cores) of the b43legacy chip. */
575 struct b43legacy_wl {
576 	/* Pointer to the active wireless device on this chip */
577 	struct b43legacy_wldev *current_dev;
578 	/* Pointer to the ieee80211 hardware data structure */
579 	struct ieee80211_hw *hw;
580 
581 	spinlock_t irq_lock;		/* locks IRQ */
582 	struct mutex mutex;		/* locks wireless core state */
583 	spinlock_t leds_lock;		/* lock for leds */
584 
585 	/* firmware loading work */
586 	struct work_struct firmware_load;
587 
588 	/* We can only have one operating interface (802.11 core)
589 	 * at a time. General information about this interface follows.
590 	 */
591 
592 	struct ieee80211_vif *vif;
593 	/* MAC address (can be NULL). */
594 	u8 mac_addr[ETH_ALEN];
595 	/* Current BSSID (can be NULL). */
596 	u8 bssid[ETH_ALEN];
597 	/* Interface type. (IEEE80211_IF_TYPE_XXX) */
598 	int if_type;
599 	/* Is the card operating in AP, STA or IBSS mode? */
600 	bool operating;
601 	/* filter flags */
602 	unsigned int filter_flags;
603 	/* Stats about the wireless interface */
604 	struct ieee80211_low_level_stats ieee_stats;
605 
606 #ifdef CONFIG_B43LEGACY_HWRNG
607 	struct hwrng rng;
608 	u8 rng_initialized;
609 	char rng_name[30 + 1];
610 #endif
611 
612 	/* List of all wireless devices on this chip */
613 	struct list_head devlist;
614 	u8 nr_devs;
615 
616 	bool radiotap_enabled;
617 	bool radio_enabled;
618 
619 	/* The beacon we are currently using (AP or IBSS mode).
620 	 * This beacon stuff is protected by the irq_lock. */
621 	struct sk_buff *current_beacon;
622 	bool beacon0_uploaded;
623 	bool beacon1_uploaded;
624 	bool beacon_templates_virgin; /* Never wrote the templates? */
625 	struct work_struct beacon_update_trigger;
626 	/* The current QOS parameters for the 4 queues. */
627 	struct b43legacy_qos_params qos_params[B43legacy_QOS_QUEUE_NUM];
628 
629 	/* Packet transmit work */
630 	struct work_struct tx_work;
631 
632 	/* Queue of packets to be transmitted. */
633 	struct sk_buff_head tx_queue[B43legacy_QOS_QUEUE_NUM];
634 
635 	/* Flag that implement the queues stopping. */
636 	bool tx_queue_stopped[B43legacy_QOS_QUEUE_NUM];
637 
638 };
639 
640 /* Pointers to the firmware data and meta information about it. */
641 struct b43legacy_firmware {
642 	/* Microcode */
643 	const struct firmware *ucode;
644 	/* PCM code */
645 	const struct firmware *pcm;
646 	/* Initial MMIO values for the firmware */
647 	const struct firmware *initvals;
648 	/* Initial MMIO values for the firmware, band-specific */
649 	const struct firmware *initvals_band;
650 	/* Firmware revision */
651 	u16 rev;
652 	/* Firmware patchlevel */
653 	u16 patch;
654 };
655 
656 /* Device (802.11 core) initialization status. */
657 enum {
658 	B43legacy_STAT_UNINIT		= 0, /* Uninitialized. */
659 	B43legacy_STAT_INITIALIZED	= 1, /* Initialized, not yet started. */
660 	B43legacy_STAT_STARTED	= 2, /* Up and running. */
661 };
662 #define b43legacy_status(wldev)	atomic_read(&(wldev)->__init_status)
663 #define b43legacy_set_status(wldev, stat)	do {		\
664 		atomic_set(&(wldev)->__init_status, (stat));	\
665 		smp_wmb();					\
666 					} while (0)
667 
668 /* *** ---   HOW LOCKING WORKS IN B43legacy   --- ***
669  *
670  * You should always acquire both, wl->mutex and wl->irq_lock unless:
671  * - You don't need to acquire wl->irq_lock, if the interface is stopped.
672  * - You don't need to acquire wl->mutex in the IRQ handler, IRQ tasklet
673  *   and packet TX path (and _ONLY_ there.)
674  */
675 
676 /* Data structure for one wireless device (802.11 core) */
677 struct b43legacy_wldev {
678 	struct ssb_device *dev;
679 	struct b43legacy_wl *wl;
680 
681 	/* The device initialization status.
682 	 * Use b43legacy_status() to query. */
683 	atomic_t __init_status;
684 	/* Saved init status for handling suspend. */
685 	int suspend_init_status;
686 
687 	bool __using_pio;	/* Using pio rather than dma. */
688 	bool bad_frames_preempt;/* Use "Bad Frames Preemption". */
689 	bool dfq_valid;		/* Directed frame queue valid (IBSS PS mode, ATIM). */
690 	bool short_preamble;	/* TRUE if using short preamble. */
691 	bool radio_hw_enable;	/* State of radio hardware enable bit. */
692 
693 	/* PHY/Radio device. */
694 	struct b43legacy_phy phy;
695 	union {
696 		/* DMA engines. */
697 		struct b43legacy_dma dma;
698 		/* PIO engines. */
699 		struct b43legacy_pio pio;
700 	};
701 
702 	/* Various statistics about the physical device. */
703 	struct b43legacy_stats stats;
704 
705 	/* The device LEDs. */
706 	struct b43legacy_led led_tx;
707 	struct b43legacy_led led_rx;
708 	struct b43legacy_led led_assoc;
709 	struct b43legacy_led led_radio;
710 
711 	/* Reason code of the last interrupt. */
712 	u32 irq_reason;
713 	u32 dma_reason[6];
714 	/* The currently active generic-interrupt mask. */
715 	u32 irq_mask;
716 	/* Link Quality calculation context. */
717 	struct b43legacy_noise_calculation noisecalc;
718 	/* if > 0 MAC is suspended. if == 0 MAC is enabled. */
719 	int mac_suspended;
720 
721 	/* Interrupt Service Routine tasklet (bottom-half) */
722 	struct tasklet_struct isr_tasklet;
723 
724 	/* Periodic tasks */
725 	struct delayed_work periodic_work;
726 	unsigned int periodic_state;
727 
728 	struct work_struct restart_work;
729 
730 	/* encryption/decryption */
731 	u16 ktp; /* Key table pointer */
732 	u8 max_nr_keys;
733 	struct b43legacy_key key[58];
734 
735 	/* Firmware data */
736 	struct b43legacy_firmware fw;
737 	const struct firmware *fwp;	/* needed to pass fw pointer */
738 
739 	/* completion struct for firmware loading */
740 	struct completion fw_load_complete;
741 
742 	/* Devicelist in struct b43legacy_wl (all 802.11 cores) */
743 	struct list_head list;
744 
745 	/* Debugging stuff follows. */
746 #ifdef CONFIG_B43LEGACY_DEBUG
747 	struct b43legacy_dfsentry *dfsentry;
748 #endif
749 };
750 
751 
752 static inline
753 struct b43legacy_wl *hw_to_b43legacy_wl(struct ieee80211_hw *hw)
754 {
755 	return hw->priv;
756 }
757 
758 /* Helper function, which returns a boolean.
759  * TRUE, if PIO is used; FALSE, if DMA is used.
760  */
761 #if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
762 static inline
763 int b43legacy_using_pio(struct b43legacy_wldev *dev)
764 {
765 	return dev->__using_pio;
766 }
767 #elif defined(CONFIG_B43LEGACY_DMA)
768 static inline
769 int b43legacy_using_pio(struct b43legacy_wldev *dev)
770 {
771 	return 0;
772 }
773 #elif defined(CONFIG_B43LEGACY_PIO)
774 static inline
775 int b43legacy_using_pio(struct b43legacy_wldev *dev)
776 {
777 	return 1;
778 }
779 #else
780 # error "Using neither DMA nor PIO? Confused..."
781 #endif
782 
783 
784 static inline
785 struct b43legacy_wldev *dev_to_b43legacy_wldev(struct device *dev)
786 {
787 	struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
788 	return ssb_get_drvdata(ssb_dev);
789 }
790 
791 /* Is the device operating in a specified mode (IEEE80211_IF_TYPE_XXX). */
792 static inline
793 int b43legacy_is_mode(struct b43legacy_wl *wl, int type)
794 {
795 	return (wl->operating &&
796 		wl->if_type == type);
797 }
798 
799 static inline
800 bool is_bcm_board_vendor(struct b43legacy_wldev *dev)
801 {
802 	return  (dev->dev->bus->boardinfo.vendor == PCI_VENDOR_ID_BROADCOM);
803 }
804 
805 static inline
806 u16 b43legacy_read16(struct b43legacy_wldev *dev, u16 offset)
807 {
808 	return ssb_read16(dev->dev, offset);
809 }
810 
811 static inline
812 void b43legacy_write16(struct b43legacy_wldev *dev, u16 offset, u16 value)
813 {
814 	ssb_write16(dev->dev, offset, value);
815 }
816 
817 static inline
818 u32 b43legacy_read32(struct b43legacy_wldev *dev, u16 offset)
819 {
820 	return ssb_read32(dev->dev, offset);
821 }
822 
823 static inline
824 void b43legacy_write32(struct b43legacy_wldev *dev, u16 offset, u32 value)
825 {
826 	ssb_write32(dev->dev, offset, value);
827 }
828 
829 static inline
830 struct b43legacy_lopair *b43legacy_get_lopair(struct b43legacy_phy *phy,
831 					      u16 radio_attenuation,
832 					      u16 baseband_attenuation)
833 {
834 	return phy->_lo_pairs + (radio_attenuation
835 			+ 14 * (baseband_attenuation / 2));
836 }
837 
838 
839 
840 /* Message printing */
841 __printf(2, 3)
842 void b43legacyinfo(struct b43legacy_wl *wl, const char *fmt, ...);
843 __printf(2, 3)
844 void b43legacyerr(struct b43legacy_wl *wl, const char *fmt, ...);
845 __printf(2, 3)
846 void b43legacywarn(struct b43legacy_wl *wl, const char *fmt, ...);
847 #if B43legacy_DEBUG
848 __printf(2, 3)
849 void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...);
850 #else /* DEBUG */
851 # define b43legacydbg(wl, fmt...) do { /* nothing */ } while (0)
852 #endif /* DEBUG */
853 
854 /* Macros for printing a value in Q5.2 format */
855 #define Q52_FMT		"%u.%u"
856 #define Q52_ARG(q52)	((q52) / 4), (((q52) & 3) * 100 / 4)
857 
858 #endif /* B43legacy_H_ */
859