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1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef B43legacy_H_
3 #define B43legacy_H_
4 
5 #include <linux/hw_random.h>
6 #include <linux/kernel.h>
7 #include <linux/spinlock.h>
8 #include <linux/interrupt.h>
9 #include <linux/stringify.h>
10 #include <linux/netdevice.h>
11 #include <linux/pci.h>
12 #include <linux/atomic.h>
13 #include <linux/io.h>
14 
15 #include <linux/ssb/ssb.h>
16 #include <linux/ssb/ssb_driver_chipcommon.h>
17 #include <linux/completion.h>
18 
19 #include <net/mac80211.h>
20 
21 #include "debugfs.h"
22 #include "leds.h"
23 #include "rfkill.h"
24 #include "phy.h"
25 
26 
27 #define B43legacy_IRQWAIT_MAX_RETRIES	20
28 
29 /* MMIO offsets */
30 #define B43legacy_MMIO_DMA0_REASON	0x20
31 #define B43legacy_MMIO_DMA0_IRQ_MASK	0x24
32 #define B43legacy_MMIO_DMA1_REASON	0x28
33 #define B43legacy_MMIO_DMA1_IRQ_MASK	0x2C
34 #define B43legacy_MMIO_DMA2_REASON	0x30
35 #define B43legacy_MMIO_DMA2_IRQ_MASK	0x34
36 #define B43legacy_MMIO_DMA3_REASON	0x38
37 #define B43legacy_MMIO_DMA3_IRQ_MASK	0x3C
38 #define B43legacy_MMIO_DMA4_REASON	0x40
39 #define B43legacy_MMIO_DMA4_IRQ_MASK	0x44
40 #define B43legacy_MMIO_DMA5_REASON	0x48
41 #define B43legacy_MMIO_DMA5_IRQ_MASK	0x4C
42 #define B43legacy_MMIO_MACCTL		0x120	/* MAC control */
43 #define B43legacy_MMIO_MACCMD		0x124	/* MAC command */
44 #define B43legacy_MMIO_GEN_IRQ_REASON	0x128
45 #define B43legacy_MMIO_GEN_IRQ_MASK	0x12C
46 #define B43legacy_MMIO_RAM_CONTROL	0x130
47 #define B43legacy_MMIO_RAM_DATA		0x134
48 #define B43legacy_MMIO_PS_STATUS		0x140
49 #define B43legacy_MMIO_RADIO_HWENABLED_HI	0x158
50 #define B43legacy_MMIO_SHM_CONTROL	0x160
51 #define B43legacy_MMIO_SHM_DATA		0x164
52 #define B43legacy_MMIO_SHM_DATA_UNALIGNED	0x166
53 #define B43legacy_MMIO_XMITSTAT_0		0x170
54 #define B43legacy_MMIO_XMITSTAT_1		0x174
55 #define B43legacy_MMIO_REV3PLUS_TSF_LOW	0x180 /* core rev >= 3 only */
56 #define B43legacy_MMIO_REV3PLUS_TSF_HIGH	0x184 /* core rev >= 3 only */
57 #define B43legacy_MMIO_TSF_CFP_REP	0x188
58 #define B43legacy_MMIO_TSF_CFP_START	0x18C
59 /* 32-bit DMA */
60 #define B43legacy_MMIO_DMA32_BASE0	0x200
61 #define B43legacy_MMIO_DMA32_BASE1	0x220
62 #define B43legacy_MMIO_DMA32_BASE2	0x240
63 #define B43legacy_MMIO_DMA32_BASE3	0x260
64 #define B43legacy_MMIO_DMA32_BASE4	0x280
65 #define B43legacy_MMIO_DMA32_BASE5	0x2A0
66 /* 64-bit DMA */
67 #define B43legacy_MMIO_DMA64_BASE0	0x200
68 #define B43legacy_MMIO_DMA64_BASE1	0x240
69 #define B43legacy_MMIO_DMA64_BASE2	0x280
70 #define B43legacy_MMIO_DMA64_BASE3	0x2C0
71 #define B43legacy_MMIO_DMA64_BASE4	0x300
72 #define B43legacy_MMIO_DMA64_BASE5	0x340
73 /* PIO */
74 #define B43legacy_MMIO_PIO1_BASE		0x300
75 #define B43legacy_MMIO_PIO2_BASE		0x310
76 #define B43legacy_MMIO_PIO3_BASE		0x320
77 #define B43legacy_MMIO_PIO4_BASE		0x330
78 
79 #define B43legacy_MMIO_PHY_VER		0x3E0
80 #define B43legacy_MMIO_PHY_RADIO		0x3E2
81 #define B43legacy_MMIO_PHY0		0x3E6
82 #define B43legacy_MMIO_ANTENNA		0x3E8
83 #define B43legacy_MMIO_CHANNEL		0x3F0
84 #define B43legacy_MMIO_CHANNEL_EXT	0x3F4
85 #define B43legacy_MMIO_RADIO_CONTROL	0x3F6
86 #define B43legacy_MMIO_RADIO_DATA_HIGH	0x3F8
87 #define B43legacy_MMIO_RADIO_DATA_LOW	0x3FA
88 #define B43legacy_MMIO_PHY_CONTROL	0x3FC
89 #define B43legacy_MMIO_PHY_DATA		0x3FE
90 #define B43legacy_MMIO_MACFILTER_CONTROL	0x420
91 #define B43legacy_MMIO_MACFILTER_DATA	0x422
92 #define B43legacy_MMIO_RCMTA_COUNT	0x43C /* Receive Match Transmitter Addr */
93 #define B43legacy_MMIO_RADIO_HWENABLED_LO	0x49A
94 #define B43legacy_MMIO_GPIO_CONTROL	0x49C
95 #define B43legacy_MMIO_GPIO_MASK		0x49E
96 #define B43legacy_MMIO_TSF_CFP_PRETBTT	0x612
97 #define B43legacy_MMIO_TSF_0		0x632 /* core rev < 3 only */
98 #define B43legacy_MMIO_TSF_1		0x634 /* core rev < 3 only */
99 #define B43legacy_MMIO_TSF_2		0x636 /* core rev < 3 only */
100 #define B43legacy_MMIO_TSF_3		0x638 /* core rev < 3 only */
101 #define B43legacy_MMIO_RNG		0x65A
102 #define B43legacy_MMIO_POWERUP_DELAY	0x6A8
103 
104 /* SPROM boardflags_lo values */
105 #define B43legacy_BFL_PACTRL		0x0002
106 #define B43legacy_BFL_RSSI		0x0008
107 #define B43legacy_BFL_EXTLNA		0x1000
108 
109 /* GPIO register offset, in both ChipCommon and PCI core. */
110 #define B43legacy_GPIO_CONTROL		0x6c
111 
112 /* SHM Routing */
113 #define	B43legacy_SHM_SHARED		0x0001
114 #define	B43legacy_SHM_WIRELESS		0x0002
115 #define	B43legacy_SHM_HW		0x0004
116 #define	B43legacy_SHM_UCODE		0x0300
117 
118 /* SHM Routing modifiers */
119 #define B43legacy_SHM_AUTOINC_R		0x0200 /* Read Auto-increment */
120 #define B43legacy_SHM_AUTOINC_W		0x0100 /* Write Auto-increment */
121 #define B43legacy_SHM_AUTOINC_RW	(B43legacy_SHM_AUTOINC_R | \
122 					 B43legacy_SHM_AUTOINC_W)
123 
124 /* Misc SHM_SHARED offsets */
125 #define B43legacy_SHM_SH_WLCOREREV	0x0016 /* 802.11 core revision */
126 #define B43legacy_SHM_SH_HOSTFLO	0x005E /* Hostflags ucode opts (low) */
127 #define B43legacy_SHM_SH_HOSTFHI	0x0060 /* Hostflags ucode opts (high) */
128 /* SHM_SHARED crypto engine */
129 #define B43legacy_SHM_SH_KEYIDXBLOCK	0x05D4 /* Key index/algorithm block */
130 /* SHM_SHARED beacon/AP variables */
131 #define B43legacy_SHM_SH_DTIMP		0x0012 /* DTIM period */
132 #define B43legacy_SHM_SH_BTL0		0x0018 /* Beacon template length 0 */
133 #define B43legacy_SHM_SH_BTL1		0x001A /* Beacon template length 1 */
134 #define B43legacy_SHM_SH_BTSFOFF	0x001C /* Beacon TSF offset */
135 #define B43legacy_SHM_SH_TIMPOS		0x001E /* TIM position in beacon */
136 #define B43legacy_SHM_SH_BEACPHYCTL	0x0054 /* Beacon PHY TX control word */
137 /* SHM_SHARED ACK/CTS control */
138 #define B43legacy_SHM_SH_ACKCTSPHYCTL	0x0022 /* ACK/CTS PHY control word */
139 /* SHM_SHARED probe response variables */
140 #define B43legacy_SHM_SH_PRTLEN		0x004A /* Probe Response template length */
141 #define B43legacy_SHM_SH_PRMAXTIME	0x0074 /* Probe Response max time */
142 #define B43legacy_SHM_SH_PRPHYCTL	0x0188 /* Probe Resp PHY TX control */
143 /* SHM_SHARED rate tables */
144 #define B43legacy_SHM_SH_OFDMDIRECT	0x0480 /* Pointer to OFDM direct map */
145 #define B43legacy_SHM_SH_OFDMBASIC	0x04A0 /* Pointer to OFDM basic rate map */
146 #define B43legacy_SHM_SH_CCKDIRECT	0x04C0 /* Pointer to CCK direct map */
147 #define B43legacy_SHM_SH_CCKBASIC	0x04E0 /* Pointer to CCK basic rate map */
148 /* SHM_SHARED microcode soft registers */
149 #define B43legacy_SHM_SH_UCODEREV	0x0000 /* Microcode revision */
150 #define B43legacy_SHM_SH_UCODEPATCH	0x0002 /* Microcode patchlevel */
151 #define B43legacy_SHM_SH_UCODEDATE	0x0004 /* Microcode date */
152 #define B43legacy_SHM_SH_UCODETIME	0x0006 /* Microcode time */
153 #define B43legacy_SHM_SH_SPUWKUP	0x0094 /* pre-wakeup for synth PU in us */
154 #define B43legacy_SHM_SH_PRETBTT	0x0096 /* pre-TBTT in us */
155 
156 #define B43legacy_UCODEFLAGS_OFFSET     0x005E
157 
158 /* Hardware Radio Enable masks */
159 #define B43legacy_MMIO_RADIO_HWENABLED_HI_MASK (1 << 16)
160 #define B43legacy_MMIO_RADIO_HWENABLED_LO_MASK (1 << 4)
161 
162 /* HostFlags. See b43legacy_hf_read/write() */
163 #define B43legacy_HF_SYMW		0x00000002 /* G-PHY SYM workaround */
164 #define B43legacy_HF_GDCW		0x00000020 /* G-PHY DV cancel filter */
165 #define B43legacy_HF_OFDMPABOOST	0x00000040 /* Enable PA boost OFDM */
166 #define B43legacy_HF_EDCF		0x00000100 /* on if WME/MAC suspended */
167 
168 /* MacFilter offsets. */
169 #define B43legacy_MACFILTER_SELF	0x0000
170 #define B43legacy_MACFILTER_BSSID	0x0003
171 #define B43legacy_MACFILTER_MAC		0x0010
172 
173 /* PHYVersioning */
174 #define B43legacy_PHYTYPE_B		0x01
175 #define B43legacy_PHYTYPE_G		0x02
176 
177 /* PHYRegisters */
178 #define B43legacy_PHY_G_LO_CONTROL	0x0810
179 #define B43legacy_PHY_ILT_G_CTRL	0x0472
180 #define B43legacy_PHY_ILT_G_DATA1	0x0473
181 #define B43legacy_PHY_ILT_G_DATA2	0x0474
182 #define B43legacy_PHY_G_PCTL		0x0029
183 #define B43legacy_PHY_RADIO_BITFIELD	0x0401
184 #define B43legacy_PHY_G_CRS		0x0429
185 #define B43legacy_PHY_NRSSILT_CTRL	0x0803
186 #define B43legacy_PHY_NRSSILT_DATA	0x0804
187 
188 /* RadioRegisters */
189 #define B43legacy_RADIOCTL_ID		0x01
190 
191 /* MAC Control bitfield */
192 #define B43legacy_MACCTL_ENABLED	0x00000001 /* MAC Enabled */
193 #define B43legacy_MACCTL_PSM_RUN	0x00000002 /* Run Microcode */
194 #define B43legacy_MACCTL_PSM_JMP0	0x00000004 /* Microcode jump to 0 */
195 #define B43legacy_MACCTL_SHM_ENABLED	0x00000100 /* SHM Enabled */
196 #define B43legacy_MACCTL_IHR_ENABLED	0x00000400 /* IHR Region Enabled */
197 #define B43legacy_MACCTL_BE		0x00010000 /* Big Endian mode */
198 #define B43legacy_MACCTL_INFRA		0x00020000 /* Infrastructure mode */
199 #define B43legacy_MACCTL_AP		0x00040000 /* AccessPoint mode */
200 #define B43legacy_MACCTL_RADIOLOCK	0x00080000 /* Radio lock */
201 #define B43legacy_MACCTL_BEACPROMISC	0x00100000 /* Beacon Promiscuous */
202 #define B43legacy_MACCTL_KEEP_BADPLCP	0x00200000 /* Keep bad PLCP frames */
203 #define B43legacy_MACCTL_KEEP_CTL	0x00400000 /* Keep control frames */
204 #define B43legacy_MACCTL_KEEP_BAD	0x00800000 /* Keep bad frames (FCS) */
205 #define B43legacy_MACCTL_PROMISC	0x01000000 /* Promiscuous mode */
206 #define B43legacy_MACCTL_HWPS		0x02000000 /* Hardware Power Saving */
207 #define B43legacy_MACCTL_AWAKE		0x04000000 /* Device is awake */
208 #define B43legacy_MACCTL_TBTTHOLD	0x10000000 /* TBTT Hold */
209 #define B43legacy_MACCTL_GMODE		0x80000000 /* G Mode */
210 
211 /* MAC Command bitfield */
212 #define B43legacy_MACCMD_BEACON0_VALID	0x00000001 /* Beacon 0 in template RAM is busy/valid */
213 #define B43legacy_MACCMD_BEACON1_VALID	0x00000002 /* Beacon 1 in template RAM is busy/valid */
214 #define B43legacy_MACCMD_DFQ_VALID	0x00000004 /* Directed frame queue valid (IBSS PS mode, ATIM) */
215 #define B43legacy_MACCMD_CCA		0x00000008 /* Clear channel assessment */
216 #define B43legacy_MACCMD_BGNOISE	0x00000010 /* Background noise */
217 
218 /* 802.11 core specific TM State Low flags */
219 #define B43legacy_TMSLOW_GMODE		0x20000000 /* G Mode Enable */
220 #define B43legacy_TMSLOW_PLLREFSEL	0x00200000 /* PLL Freq Ref Select */
221 #define B43legacy_TMSLOW_MACPHYCLKEN	0x00100000 /* MAC PHY Clock Ctrl Enbl */
222 #define B43legacy_TMSLOW_PHYRESET	0x00080000 /* PHY Reset */
223 #define B43legacy_TMSLOW_PHYCLKEN	0x00040000 /* PHY Clock Enable */
224 
225 /* 802.11 core specific TM State High flags */
226 #define B43legacy_TMSHIGH_FCLOCK	0x00040000 /* Fast Clock Available */
227 #define B43legacy_TMSHIGH_GPHY		0x00010000 /* G-PHY avail (rev >= 5) */
228 
229 #define B43legacy_UCODEFLAG_AUTODIV       0x0001
230 
231 /* Generic-Interrupt reasons. */
232 #define B43legacy_IRQ_MAC_SUSPENDED	0x00000001
233 #define B43legacy_IRQ_BEACON		0x00000002
234 #define B43legacy_IRQ_TBTT_INDI		0x00000004 /* Target Beacon Transmit Time */
235 #define B43legacy_IRQ_BEACON_TX_OK	0x00000008
236 #define B43legacy_IRQ_BEACON_CANCEL	0x00000010
237 #define B43legacy_IRQ_ATIM_END		0x00000020
238 #define B43legacy_IRQ_PMQ		0x00000040
239 #define B43legacy_IRQ_PIO_WORKAROUND	0x00000100
240 #define B43legacy_IRQ_MAC_TXERR		0x00000200
241 #define B43legacy_IRQ_PHY_TXERR		0x00000800
242 #define B43legacy_IRQ_PMEVENT		0x00001000
243 #define B43legacy_IRQ_TIMER0		0x00002000
244 #define B43legacy_IRQ_TIMER1		0x00004000
245 #define B43legacy_IRQ_DMA		0x00008000
246 #define B43legacy_IRQ_TXFIFO_FLUSH_OK	0x00010000
247 #define B43legacy_IRQ_CCA_MEASURE_OK	0x00020000
248 #define B43legacy_IRQ_NOISESAMPLE_OK	0x00040000
249 #define B43legacy_IRQ_UCODE_DEBUG	0x08000000
250 #define B43legacy_IRQ_RFKILL		0x10000000
251 #define B43legacy_IRQ_TX_OK		0x20000000
252 #define B43legacy_IRQ_PHY_G_CHANGED	0x40000000
253 #define B43legacy_IRQ_TIMEOUT		0x80000000
254 
255 #define B43legacy_IRQ_ALL		0xFFFFFFFF
256 #define B43legacy_IRQ_MASKTEMPLATE	(B43legacy_IRQ_MAC_SUSPENDED |	\
257 					 B43legacy_IRQ_TBTT_INDI |	\
258 					 B43legacy_IRQ_ATIM_END |	\
259 					 B43legacy_IRQ_PMQ |		\
260 					 B43legacy_IRQ_MAC_TXERR |	\
261 					 B43legacy_IRQ_PHY_TXERR |	\
262 					 B43legacy_IRQ_DMA |		\
263 					 B43legacy_IRQ_TXFIFO_FLUSH_OK | \
264 					 B43legacy_IRQ_NOISESAMPLE_OK | \
265 					 B43legacy_IRQ_UCODE_DEBUG |	\
266 					 B43legacy_IRQ_RFKILL |		\
267 					 B43legacy_IRQ_TX_OK)
268 
269 /* Device specific rate values.
270  * The actual values defined here are (rate_in_mbps * 2).
271  * Some code depends on this. Don't change it. */
272 #define B43legacy_CCK_RATE_1MB		2
273 #define B43legacy_CCK_RATE_2MB		4
274 #define B43legacy_CCK_RATE_5MB		11
275 #define B43legacy_CCK_RATE_11MB		22
276 #define B43legacy_OFDM_RATE_6MB		12
277 #define B43legacy_OFDM_RATE_9MB		18
278 #define B43legacy_OFDM_RATE_12MB	24
279 #define B43legacy_OFDM_RATE_18MB	36
280 #define B43legacy_OFDM_RATE_24MB	48
281 #define B43legacy_OFDM_RATE_36MB	72
282 #define B43legacy_OFDM_RATE_48MB	96
283 #define B43legacy_OFDM_RATE_54MB	108
284 /* Convert a b43legacy rate value to a rate in 100kbps */
285 #define B43legacy_RATE_TO_100KBPS(rate)	(((rate) * 10) / 2)
286 
287 
288 #define B43legacy_DEFAULT_SHORT_RETRY_LIMIT	7
289 #define B43legacy_DEFAULT_LONG_RETRY_LIMIT	4
290 
291 #define B43legacy_PHY_TX_BADNESS_LIMIT		1000
292 
293 /* Max size of a security key */
294 #define B43legacy_SEC_KEYSIZE		16
295 /* Security algorithms. */
296 enum {
297 	B43legacy_SEC_ALGO_NONE = 0, /* unencrypted, as of TX header. */
298 	B43legacy_SEC_ALGO_WEP40,
299 	B43legacy_SEC_ALGO_TKIP,
300 	B43legacy_SEC_ALGO_AES,
301 	B43legacy_SEC_ALGO_WEP104,
302 	B43legacy_SEC_ALGO_AES_LEGACY,
303 };
304 
305 /* Core Information Registers */
306 #define B43legacy_CIR_BASE                0xf00
307 #define B43legacy_CIR_SBTPSFLAG           (B43legacy_CIR_BASE + 0x18)
308 #define B43legacy_CIR_SBIMSTATE           (B43legacy_CIR_BASE + 0x90)
309 #define B43legacy_CIR_SBINTVEC            (B43legacy_CIR_BASE + 0x94)
310 #define B43legacy_CIR_SBTMSTATELOW        (B43legacy_CIR_BASE + 0x98)
311 #define B43legacy_CIR_SBTMSTATEHIGH       (B43legacy_CIR_BASE + 0x9c)
312 #define B43legacy_CIR_SBIMCONFIGLOW       (B43legacy_CIR_BASE + 0xa8)
313 #define B43legacy_CIR_SB_ID_HI            (B43legacy_CIR_BASE + 0xfc)
314 
315 /* sbtmstatehigh state flags */
316 #define B43legacy_SBTMSTATEHIGH_SERROR		0x00000001
317 #define B43legacy_SBTMSTATEHIGH_BUSY		0x00000004
318 #define B43legacy_SBTMSTATEHIGH_TIMEOUT		0x00000020
319 #define B43legacy_SBTMSTATEHIGH_G_PHY_AVAIL	0x00010000
320 #define B43legacy_SBTMSTATEHIGH_COREFLAGS	0x1FFF0000
321 #define B43legacy_SBTMSTATEHIGH_DMA64BIT	0x10000000
322 #define B43legacy_SBTMSTATEHIGH_GATEDCLK	0x20000000
323 #define B43legacy_SBTMSTATEHIGH_BISTFAILED	0x40000000
324 #define B43legacy_SBTMSTATEHIGH_BISTCOMPLETE	0x80000000
325 
326 /* sbimstate flags */
327 #define B43legacy_SBIMSTATE_IB_ERROR		0x20000
328 #define B43legacy_SBIMSTATE_TIMEOUT		0x40000
329 
330 #define PFX		KBUILD_MODNAME ": "
331 #ifdef assert
332 # undef assert
333 #endif
334 #ifdef CONFIG_B43LEGACY_DEBUG
335 # define B43legacy_WARN_ON(x)	WARN_ON(x)
336 # define B43legacy_BUG_ON(expr)						\
337 	do {								\
338 		if (unlikely((expr))) {					\
339 			printk(KERN_INFO PFX "Test (%s) failed\n",	\
340 					      #expr);			\
341 			BUG_ON(expr);					\
342 		}							\
343 	} while (0)
344 # define B43legacy_DEBUG	1
345 #else
346 /* This will evaluate the argument even if debugging is disabled. */
__b43legacy_warn_on_dummy(bool x)347 static inline bool __b43legacy_warn_on_dummy(bool x) { return x; }
348 # define B43legacy_WARN_ON(x)	__b43legacy_warn_on_dummy(unlikely(!!(x)))
349 # define B43legacy_BUG_ON(x)	do { /* nothing */ } while (0)
350 # define B43legacy_DEBUG	0
351 #endif
352 
353 
354 struct net_device;
355 struct pci_dev;
356 struct b43legacy_dmaring;
357 struct b43legacy_pioqueue;
358 
359 /* The firmware file header */
360 #define B43legacy_FW_TYPE_UCODE	'u'
361 #define B43legacy_FW_TYPE_PCM	'p'
362 #define B43legacy_FW_TYPE_IV	'i'
363 struct b43legacy_fw_header {
364 	/* File type */
365 	u8 type;
366 	/* File format version */
367 	u8 ver;
368 	u8 __padding[2];
369 	/* Size of the data. For ucode and PCM this is in bytes.
370 	 * For IV this is number-of-ivs. */
371 	__be32 size;
372 } __packed;
373 
374 /* Initial Value file format */
375 #define B43legacy_IV_OFFSET_MASK	0x7FFF
376 #define B43legacy_IV_32BIT		0x8000
377 struct b43legacy_iv {
378 	__be16 offset_size;
379 	union {
380 		__be16 d16;
381 		__be32 d32;
382 	} __packed data;
383 } __packed;
384 
385 #define B43legacy_PHYMODE(phytype)	(1 << (phytype))
386 #define B43legacy_PHYMODE_B		B43legacy_PHYMODE	\
387 					((B43legacy_PHYTYPE_B))
388 #define B43legacy_PHYMODE_G		B43legacy_PHYMODE	\
389 					((B43legacy_PHYTYPE_G))
390 
391 /* Value pair to measure the LocalOscillator. */
392 struct b43legacy_lopair {
393 	s8 low;
394 	s8 high;
395 	u8 used:1;
396 };
397 #define B43legacy_LO_COUNT	(14*4)
398 
399 struct b43legacy_phy {
400 	/* Possible PHYMODEs on this PHY */
401 	u8 possible_phymodes;
402 	/* GMODE bit enabled in MACCTL? */
403 	bool gmode;
404 
405 	/* Analog Type */
406 	u8 analog;
407 	/* B43legacy_PHYTYPE_ */
408 	u8 type;
409 	/* PHY revision number. */
410 	u8 rev;
411 
412 	u16 antenna_diversity;
413 	u16 savedpctlreg;
414 	/* Radio versioning */
415 	u16 radio_manuf;	/* Radio manufacturer */
416 	u16 radio_ver;		/* Radio version */
417 	u8 calibrated:1;
418 	u8 radio_rev;		/* Radio revision */
419 
420 	bool dyn_tssi_tbl;	/* tssi2dbm is kmalloc()ed. */
421 
422 	/* ACI (adjacent channel interference) flags. */
423 	bool aci_enable;
424 	bool aci_wlan_automatic;
425 	bool aci_hw_rssi;
426 
427 	/* Radio switched on/off */
428 	bool radio_on;
429 	struct {
430 		/* Values saved when turning the radio off.
431 		 * They are needed when turning it on again. */
432 		bool valid;
433 		u16 rfover;
434 		u16 rfoverval;
435 	} radio_off_context;
436 
437 	u16 minlowsig[2];
438 	u16 minlowsigpos[2];
439 
440 	/* LO Measurement Data.
441 	 * Use b43legacy_get_lopair() to get a value.
442 	 */
443 	struct b43legacy_lopair *_lo_pairs;
444 	/* TSSI to dBm table in use */
445 	const s8 *tssi2dbm;
446 	/* idle TSSI value */
447 	s8 idle_tssi;
448 	/* Target idle TSSI */
449 	int tgt_idle_tssi;
450 	/* Current idle TSSI */
451 	int cur_idle_tssi;
452 
453 	/* LocalOscillator control values. */
454 	struct b43legacy_txpower_lo_control *lo_control;
455 	/* Values from b43legacy_calc_loopback_gain() */
456 	s16 max_lb_gain;	/* Maximum Loopback gain in hdB */
457 	s16 trsw_rx_gain;	/* TRSW RX gain in hdB */
458 	s16 lna_lod_gain;	/* LNA lod */
459 	s16 lna_gain;		/* LNA */
460 	s16 pga_gain;		/* PGA */
461 
462 	/* Desired TX power level (in dBm). This is set by the user and
463 	 * adjusted in b43legacy_phy_xmitpower(). */
464 	u8 power_level;
465 
466 	/* Values from b43legacy_calc_loopback_gain() */
467 	u16 loopback_gain[2];
468 
469 	/* TX Power control values. */
470 	/* B/G PHY */
471 	struct {
472 		/* Current Radio Attenuation for TXpower recalculation. */
473 		u16 rfatt;
474 		/* Current Baseband Attenuation for TXpower recalculation. */
475 		u16 bbatt;
476 		/* Current TXpower control value for TXpower recalculation. */
477 		u16 txctl1;
478 		u16 txctl2;
479 	};
480 	/* A PHY */
481 	struct {
482 		u16 txpwr_offset;
483 	};
484 
485 	/* Current Interference Mitigation mode */
486 	int interfmode;
487 	/* Stack of saved values from the Interference Mitigation code.
488 	 * Each value in the stack is laid out as follows:
489 	 * bit 0-11:  offset
490 	 * bit 12-15: register ID
491 	 * bit 16-32: value
492 	 * register ID is: 0x1 PHY, 0x2 Radio, 0x3 ILT
493 	 */
494 #define B43legacy_INTERFSTACK_SIZE	26
495 	u32 interfstack[B43legacy_INTERFSTACK_SIZE];
496 
497 	/* Saved values from the NRSSI Slope calculation */
498 	s16 nrssi[2];
499 	s32 nrssislope;
500 	/* In memory nrssi lookup table. */
501 	s8 nrssi_lt[64];
502 
503 	/* current channel */
504 	u8 channel;
505 
506 	u16 lofcal;
507 
508 	u16 initval;
509 
510 	/* PHY TX errors counter. */
511 	atomic_t txerr_cnt;
512 
513 #if B43legacy_DEBUG
514 	/* Manual TX-power control enabled? */
515 	bool manual_txpower_control;
516 	/* PHY registers locked by b43legacy_phy_lock()? */
517 	bool phy_locked;
518 #endif /* B43legacy_DEBUG */
519 };
520 
521 /* Data structures for DMA transmission, per 80211 core. */
522 struct b43legacy_dma {
523 	struct b43legacy_dmaring *tx_ring0;
524 	struct b43legacy_dmaring *tx_ring1;
525 	struct b43legacy_dmaring *tx_ring2;
526 	struct b43legacy_dmaring *tx_ring3;
527 	struct b43legacy_dmaring *tx_ring4;
528 	struct b43legacy_dmaring *tx_ring5;
529 
530 	struct b43legacy_dmaring *rx_ring0;
531 	struct b43legacy_dmaring *rx_ring3; /* only on core.rev < 5 */
532 
533 	u32 translation; /* Routing bits */
534 };
535 
536 /* Data structures for PIO transmission, per 80211 core. */
537 struct b43legacy_pio {
538 	struct b43legacy_pioqueue *queue0;
539 	struct b43legacy_pioqueue *queue1;
540 	struct b43legacy_pioqueue *queue2;
541 	struct b43legacy_pioqueue *queue3;
542 };
543 
544 /* Context information for a noise calculation (Link Quality). */
545 struct b43legacy_noise_calculation {
546 	u8 channel_at_start;
547 	bool calculation_running;
548 	u8 nr_samples;
549 	s8 samples[8][4];
550 };
551 
552 struct b43legacy_stats {
553 	u8 link_noise;
554 	/* Store the last TX/RX times here for updating the leds. */
555 	unsigned long last_tx;
556 	unsigned long last_rx;
557 };
558 
559 struct b43legacy_key {
560 	void *keyconf;
561 	bool enabled;
562 	u8 algorithm;
563 };
564 
565 #define B43legacy_QOS_QUEUE_NUM	4
566 
567 struct b43legacy_wldev;
568 
569 /* QOS parameters for a queue. */
570 struct b43legacy_qos_params {
571 	/* The QOS parameters */
572 	struct ieee80211_tx_queue_params p;
573 };
574 
575 /* Data structure for the WLAN parts (802.11 cores) of the b43legacy chip. */
576 struct b43legacy_wl {
577 	/* Pointer to the active wireless device on this chip */
578 	struct b43legacy_wldev *current_dev;
579 	/* Pointer to the ieee80211 hardware data structure */
580 	struct ieee80211_hw *hw;
581 
582 	spinlock_t irq_lock;		/* locks IRQ */
583 	struct mutex mutex;		/* locks wireless core state */
584 	spinlock_t leds_lock;		/* lock for leds */
585 
586 	/* firmware loading work */
587 	struct work_struct firmware_load;
588 
589 	/* We can only have one operating interface (802.11 core)
590 	 * at a time. General information about this interface follows.
591 	 */
592 
593 	struct ieee80211_vif *vif;
594 	/* MAC address (can be NULL). */
595 	u8 mac_addr[ETH_ALEN];
596 	/* Current BSSID (can be NULL). */
597 	u8 bssid[ETH_ALEN];
598 	/* Interface type. (IEEE80211_IF_TYPE_XXX) */
599 	int if_type;
600 	/* Is the card operating in AP, STA or IBSS mode? */
601 	bool operating;
602 	/* filter flags */
603 	unsigned int filter_flags;
604 	/* Stats about the wireless interface */
605 	struct ieee80211_low_level_stats ieee_stats;
606 
607 #ifdef CONFIG_B43LEGACY_HWRNG
608 	struct hwrng rng;
609 	u8 rng_initialized;
610 	char rng_name[30 + 1];
611 #endif
612 
613 	/* List of all wireless devices on this chip */
614 	struct list_head devlist;
615 	u8 nr_devs;
616 
617 	bool radiotap_enabled;
618 	bool radio_enabled;
619 
620 	/* The beacon we are currently using (AP or IBSS mode).
621 	 * This beacon stuff is protected by the irq_lock. */
622 	struct sk_buff *current_beacon;
623 	bool beacon0_uploaded;
624 	bool beacon1_uploaded;
625 	bool beacon_templates_virgin; /* Never wrote the templates? */
626 	struct work_struct beacon_update_trigger;
627 	/* The current QOS parameters for the 4 queues. */
628 	struct b43legacy_qos_params qos_params[B43legacy_QOS_QUEUE_NUM];
629 
630 	/* Packet transmit work */
631 	struct work_struct tx_work;
632 
633 	/* Queue of packets to be transmitted. */
634 	struct sk_buff_head tx_queue[B43legacy_QOS_QUEUE_NUM];
635 
636 	/* Flag that implement the queues stopping. */
637 	bool tx_queue_stopped[B43legacy_QOS_QUEUE_NUM];
638 
639 };
640 
641 /* Pointers to the firmware data and meta information about it. */
642 struct b43legacy_firmware {
643 	/* Microcode */
644 	const struct firmware *ucode;
645 	/* PCM code */
646 	const struct firmware *pcm;
647 	/* Initial MMIO values for the firmware */
648 	const struct firmware *initvals;
649 	/* Initial MMIO values for the firmware, band-specific */
650 	const struct firmware *initvals_band;
651 	/* Firmware revision */
652 	u16 rev;
653 	/* Firmware patchlevel */
654 	u16 patch;
655 };
656 
657 /* Device (802.11 core) initialization status. */
658 enum {
659 	B43legacy_STAT_UNINIT		= 0, /* Uninitialized. */
660 	B43legacy_STAT_INITIALIZED	= 1, /* Initialized, not yet started. */
661 	B43legacy_STAT_STARTED	= 2, /* Up and running. */
662 };
663 #define b43legacy_status(wldev)	atomic_read(&(wldev)->__init_status)
664 #define b43legacy_set_status(wldev, stat)	do {		\
665 		atomic_set(&(wldev)->__init_status, (stat));	\
666 		smp_wmb();					\
667 					} while (0)
668 
669 /* *** ---   HOW LOCKING WORKS IN B43legacy   --- ***
670  *
671  * You should always acquire both, wl->mutex and wl->irq_lock unless:
672  * - You don't need to acquire wl->irq_lock, if the interface is stopped.
673  * - You don't need to acquire wl->mutex in the IRQ handler, IRQ tasklet
674  *   and packet TX path (and _ONLY_ there.)
675  */
676 
677 /* Data structure for one wireless device (802.11 core) */
678 struct b43legacy_wldev {
679 	struct ssb_device *dev;
680 	struct b43legacy_wl *wl;
681 
682 	/* The device initialization status.
683 	 * Use b43legacy_status() to query. */
684 	atomic_t __init_status;
685 	/* Saved init status for handling suspend. */
686 	int suspend_init_status;
687 
688 	bool __using_pio;	/* Using pio rather than dma. */
689 	bool bad_frames_preempt;/* Use "Bad Frames Preemption". */
690 	bool dfq_valid;		/* Directed frame queue valid (IBSS PS mode, ATIM). */
691 	bool short_preamble;	/* TRUE if using short preamble. */
692 	bool radio_hw_enable;	/* State of radio hardware enable bit. */
693 
694 	/* PHY/Radio device. */
695 	struct b43legacy_phy phy;
696 	union {
697 		/* DMA engines. */
698 		struct b43legacy_dma dma;
699 		/* PIO engines. */
700 		struct b43legacy_pio pio;
701 	};
702 
703 	/* Various statistics about the physical device. */
704 	struct b43legacy_stats stats;
705 
706 	/* The device LEDs. */
707 	struct b43legacy_led led_tx;
708 	struct b43legacy_led led_rx;
709 	struct b43legacy_led led_assoc;
710 	struct b43legacy_led led_radio;
711 
712 	/* Reason code of the last interrupt. */
713 	u32 irq_reason;
714 	u32 dma_reason[6];
715 	/* The currently active generic-interrupt mask. */
716 	u32 irq_mask;
717 	/* Link Quality calculation context. */
718 	struct b43legacy_noise_calculation noisecalc;
719 	/* if > 0 MAC is suspended. if == 0 MAC is enabled. */
720 	int mac_suspended;
721 
722 	/* Interrupt Service Routine tasklet (bottom-half) */
723 	struct tasklet_struct isr_tasklet;
724 
725 	/* Periodic tasks */
726 	struct delayed_work periodic_work;
727 	unsigned int periodic_state;
728 
729 	struct work_struct restart_work;
730 
731 	/* encryption/decryption */
732 	u16 ktp; /* Key table pointer */
733 	u8 max_nr_keys;
734 	struct b43legacy_key key[58];
735 
736 	/* Firmware data */
737 	struct b43legacy_firmware fw;
738 	const struct firmware *fwp;	/* needed to pass fw pointer */
739 
740 	/* completion struct for firmware loading */
741 	struct completion fw_load_complete;
742 
743 	/* Devicelist in struct b43legacy_wl (all 802.11 cores) */
744 	struct list_head list;
745 
746 	/* Debugging stuff follows. */
747 #ifdef CONFIG_B43LEGACY_DEBUG
748 	struct b43legacy_dfsentry *dfsentry;
749 #endif
750 };
751 
752 
753 static inline
hw_to_b43legacy_wl(struct ieee80211_hw * hw)754 struct b43legacy_wl *hw_to_b43legacy_wl(struct ieee80211_hw *hw)
755 {
756 	return hw->priv;
757 }
758 
759 /* Helper function, which returns a boolean.
760  * TRUE, if PIO is used; FALSE, if DMA is used.
761  */
762 #if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
763 static inline
b43legacy_using_pio(struct b43legacy_wldev * dev)764 int b43legacy_using_pio(struct b43legacy_wldev *dev)
765 {
766 	return dev->__using_pio;
767 }
768 #elif defined(CONFIG_B43LEGACY_DMA)
769 static inline
b43legacy_using_pio(struct b43legacy_wldev * dev)770 int b43legacy_using_pio(struct b43legacy_wldev *dev)
771 {
772 	return 0;
773 }
774 #elif defined(CONFIG_B43LEGACY_PIO)
775 static inline
b43legacy_using_pio(struct b43legacy_wldev * dev)776 int b43legacy_using_pio(struct b43legacy_wldev *dev)
777 {
778 	return 1;
779 }
780 #else
781 # error "Using neither DMA nor PIO? Confused..."
782 #endif
783 
784 
785 static inline
dev_to_b43legacy_wldev(struct device * dev)786 struct b43legacy_wldev *dev_to_b43legacy_wldev(struct device *dev)
787 {
788 	struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
789 	return ssb_get_drvdata(ssb_dev);
790 }
791 
792 /* Is the device operating in a specified mode (IEEE80211_IF_TYPE_XXX). */
793 static inline
b43legacy_is_mode(struct b43legacy_wl * wl,int type)794 int b43legacy_is_mode(struct b43legacy_wl *wl, int type)
795 {
796 	return (wl->operating &&
797 		wl->if_type == type);
798 }
799 
800 static inline
is_bcm_board_vendor(struct b43legacy_wldev * dev)801 bool is_bcm_board_vendor(struct b43legacy_wldev *dev)
802 {
803 	return  (dev->dev->bus->boardinfo.vendor == PCI_VENDOR_ID_BROADCOM);
804 }
805 
806 static inline
b43legacy_read16(struct b43legacy_wldev * dev,u16 offset)807 u16 b43legacy_read16(struct b43legacy_wldev *dev, u16 offset)
808 {
809 	return ssb_read16(dev->dev, offset);
810 }
811 
812 static inline
b43legacy_write16(struct b43legacy_wldev * dev,u16 offset,u16 value)813 void b43legacy_write16(struct b43legacy_wldev *dev, u16 offset, u16 value)
814 {
815 	ssb_write16(dev->dev, offset, value);
816 }
817 
818 static inline
b43legacy_read32(struct b43legacy_wldev * dev,u16 offset)819 u32 b43legacy_read32(struct b43legacy_wldev *dev, u16 offset)
820 {
821 	return ssb_read32(dev->dev, offset);
822 }
823 
824 static inline
b43legacy_write32(struct b43legacy_wldev * dev,u16 offset,u32 value)825 void b43legacy_write32(struct b43legacy_wldev *dev, u16 offset, u32 value)
826 {
827 	ssb_write32(dev->dev, offset, value);
828 }
829 
830 static inline
b43legacy_get_lopair(struct b43legacy_phy * phy,u16 radio_attenuation,u16 baseband_attenuation)831 struct b43legacy_lopair *b43legacy_get_lopair(struct b43legacy_phy *phy,
832 					      u16 radio_attenuation,
833 					      u16 baseband_attenuation)
834 {
835 	return phy->_lo_pairs + (radio_attenuation
836 			+ 14 * (baseband_attenuation / 2));
837 }
838 
839 
840 
841 /* Message printing */
842 __printf(2, 3)
843 void b43legacyinfo(struct b43legacy_wl *wl, const char *fmt, ...);
844 __printf(2, 3)
845 void b43legacyerr(struct b43legacy_wl *wl, const char *fmt, ...);
846 __printf(2, 3)
847 void b43legacywarn(struct b43legacy_wl *wl, const char *fmt, ...);
848 #if B43legacy_DEBUG
849 __printf(2, 3)
850 void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...);
851 #else /* DEBUG */
852 # define b43legacydbg(wl, fmt...) do { /* nothing */ } while (0)
853 #endif /* DEBUG */
854 
855 /* Macros for printing a value in Q5.2 format */
856 #define Q52_FMT		"%u.%u"
857 #define Q52_ARG(q52)	((q52) / 4), (((q52) & 3) * 100 / 4)
858 
859 #endif /* B43legacy_H_ */
860