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 <asm/atomic.h>
14 #include <linux/ssb/ssb.h>
15 #include <linux/ssb/ssb_driver_chipcommon.h>
17 #include <linux/wireless.h>
18 #include <net/mac80211.h>
26 #define B43legacy_IRQWAIT_MAX_RETRIES 100
28 #define B43legacy_RX_MAX_SSI 60 /* best guess at max ssi */
31 #define B43legacy_MMIO_DMA0_REASON 0x20
32 #define B43legacy_MMIO_DMA0_IRQ_MASK 0x24
33 #define B43legacy_MMIO_DMA1_REASON 0x28
34 #define B43legacy_MMIO_DMA1_IRQ_MASK 0x2C
35 #define B43legacy_MMIO_DMA2_REASON 0x30
36 #define B43legacy_MMIO_DMA2_IRQ_MASK 0x34
37 #define B43legacy_MMIO_DMA3_REASON 0x38
38 #define B43legacy_MMIO_DMA3_IRQ_MASK 0x3C
39 #define B43legacy_MMIO_DMA4_REASON 0x40
40 #define B43legacy_MMIO_DMA4_IRQ_MASK 0x44
41 #define B43legacy_MMIO_DMA5_REASON 0x48
42 #define B43legacy_MMIO_DMA5_IRQ_MASK 0x4C
43 #define B43legacy_MMIO_MACCTL 0x120
44 #define B43legacy_MMIO_STATUS_BITFIELD 0x120
45 #define B43legacy_MMIO_STATUS2_BITFIELD 0x124
46 #define B43legacy_MMIO_GEN_IRQ_REASON 0x128
47 #define B43legacy_MMIO_GEN_IRQ_MASK 0x12C
48 #define B43legacy_MMIO_RAM_CONTROL 0x130
49 #define B43legacy_MMIO_RAM_DATA 0x134
50 #define B43legacy_MMIO_PS_STATUS 0x140
51 #define B43legacy_MMIO_RADIO_HWENABLED_HI 0x158
52 #define B43legacy_MMIO_SHM_CONTROL 0x160
53 #define B43legacy_MMIO_SHM_DATA 0x164
54 #define B43legacy_MMIO_SHM_DATA_UNALIGNED 0x166
55 #define B43legacy_MMIO_XMITSTAT_0 0x170
56 #define B43legacy_MMIO_XMITSTAT_1 0x174
57 #define B43legacy_MMIO_REV3PLUS_TSF_LOW 0x180 /* core rev >= 3 only */
58 #define B43legacy_MMIO_REV3PLUS_TSF_HIGH 0x184 /* core rev >= 3 only */
61 #define B43legacy_MMIO_DMA32_BASE0 0x200
62 #define B43legacy_MMIO_DMA32_BASE1 0x220
63 #define B43legacy_MMIO_DMA32_BASE2 0x240
64 #define B43legacy_MMIO_DMA32_BASE3 0x260
65 #define B43legacy_MMIO_DMA32_BASE4 0x280
66 #define B43legacy_MMIO_DMA32_BASE5 0x2A0
68 #define B43legacy_MMIO_DMA64_BASE0 0x200
69 #define B43legacy_MMIO_DMA64_BASE1 0x240
70 #define B43legacy_MMIO_DMA64_BASE2 0x280
71 #define B43legacy_MMIO_DMA64_BASE3 0x2C0
72 #define B43legacy_MMIO_DMA64_BASE4 0x300
73 #define B43legacy_MMIO_DMA64_BASE5 0x340
75 #define B43legacy_MMIO_PIO1_BASE 0x300
76 #define B43legacy_MMIO_PIO2_BASE 0x310
77 #define B43legacy_MMIO_PIO3_BASE 0x320
78 #define B43legacy_MMIO_PIO4_BASE 0x330
80 #define B43legacy_MMIO_PHY_VER 0x3E0
81 #define B43legacy_MMIO_PHY_RADIO 0x3E2
82 #define B43legacy_MMIO_PHY0 0x3E6
83 #define B43legacy_MMIO_ANTENNA 0x3E8
84 #define B43legacy_MMIO_CHANNEL 0x3F0
85 #define B43legacy_MMIO_CHANNEL_EXT 0x3F4
86 #define B43legacy_MMIO_RADIO_CONTROL 0x3F6
87 #define B43legacy_MMIO_RADIO_DATA_HIGH 0x3F8
88 #define B43legacy_MMIO_RADIO_DATA_LOW 0x3FA
89 #define B43legacy_MMIO_PHY_CONTROL 0x3FC
90 #define B43legacy_MMIO_PHY_DATA 0x3FE
91 #define B43legacy_MMIO_MACFILTER_CONTROL 0x420
92 #define B43legacy_MMIO_MACFILTER_DATA 0x422
93 #define B43legacy_MMIO_RCMTA_COUNT 0x43C /* Receive Match Transmitter Addr */
94 #define B43legacy_MMIO_RADIO_HWENABLED_LO 0x49A
95 #define B43legacy_MMIO_GPIO_CONTROL 0x49C
96 #define B43legacy_MMIO_GPIO_MASK 0x49E
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
104 /* SPROM boardflags_lo values */
105 #define B43legacy_BFL_PACTRL 0x0002
106 #define B43legacy_BFL_RSSI 0x0008
107 #define B43legacy_BFL_EXTLNA 0x1000
109 /* GPIO register offset, in both ChipCommon and PCI core. */
110 #define B43legacy_GPIO_CONTROL 0x6c
113 #define B43legacy_SHM_SHARED 0x0001
114 #define B43legacy_SHM_WIRELESS 0x0002
115 #define B43legacy_SHM_HW 0x0004
116 #define B43legacy_SHM_UCODE 0x0300
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)
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 variables */
131 #define B43legacy_SHM_SH_BEACPHYCTL 0x0054 /* Beacon PHY TX control word */
132 /* SHM_SHARED ACK/CTS control */
133 #define B43legacy_SHM_SH_ACKCTSPHYCTL 0x0022 /* ACK/CTS PHY control word */
134 /* SHM_SHARED probe response variables */
135 #define B43legacy_SHM_SH_PRPHYCTL 0x0188 /* Probe Resp PHY TX control */
136 #define B43legacy_SHM_SH_PRMAXTIME 0x0074 /* Probe Response max time */
137 /* SHM_SHARED rate tables */
138 /* SHM_SHARED microcode soft registers */
139 #define B43legacy_SHM_SH_UCODEREV 0x0000 /* Microcode revision */
140 #define B43legacy_SHM_SH_UCODEPATCH 0x0002 /* Microcode patchlevel */
141 #define B43legacy_SHM_SH_UCODEDATE 0x0004 /* Microcode date */
142 #define B43legacy_SHM_SH_UCODETIME 0x0006 /* Microcode time */
144 #define B43legacy_UCODEFLAGS_OFFSET 0x005E
146 /* Hardware Radio Enable masks */
147 #define B43legacy_MMIO_RADIO_HWENABLED_HI_MASK (1 << 16)
148 #define B43legacy_MMIO_RADIO_HWENABLED_LO_MASK (1 << 4)
150 /* HostFlags. See b43legacy_hf_read/write() */
151 #define B43legacy_HF_SYMW 0x00000002 /* G-PHY SYM workaround */
152 #define B43legacy_HF_GDCW 0x00000020 /* G-PHY DV cancel filter */
153 #define B43legacy_HF_OFDMPABOOST 0x00000040 /* Enable PA boost OFDM */
154 #define B43legacy_HF_EDCF 0x00000100 /* on if WME/MAC suspended */
156 /* MacFilter offsets. */
157 #define B43legacy_MACFILTER_SELF 0x0000
158 #define B43legacy_MACFILTER_BSSID 0x0003
159 #define B43legacy_MACFILTER_MAC 0x0010
162 #define B43legacy_PHYTYPE_B 0x01
163 #define B43legacy_PHYTYPE_G 0x02
166 #define B43legacy_PHY_G_LO_CONTROL 0x0810
167 #define B43legacy_PHY_ILT_G_CTRL 0x0472
168 #define B43legacy_PHY_ILT_G_DATA1 0x0473
169 #define B43legacy_PHY_ILT_G_DATA2 0x0474
170 #define B43legacy_PHY_G_PCTL 0x0029
171 #define B43legacy_PHY_RADIO_BITFIELD 0x0401
172 #define B43legacy_PHY_G_CRS 0x0429
173 #define B43legacy_PHY_NRSSILT_CTRL 0x0803
174 #define B43legacy_PHY_NRSSILT_DATA 0x0804
177 #define B43legacy_RADIOCTL_ID 0x01
179 /* MAC Control bitfield */
180 #define B43legacy_MACCTL_IHR_ENABLED 0x00000400 /* IHR Region Enabled */
181 #define B43legacy_MACCTL_INFRA 0x00020000 /* Infrastructure mode */
182 #define B43legacy_MACCTL_AP 0x00040000 /* AccessPoint mode */
183 #define B43legacy_MACCTL_BEACPROMISC 0x00100000 /* Beacon Promiscuous */
184 #define B43legacy_MACCTL_KEEP_BADPLCP 0x00200000 /* Keep bad PLCP frames */
185 #define B43legacy_MACCTL_KEEP_CTL 0x00400000 /* Keep control frames */
186 #define B43legacy_MACCTL_KEEP_BAD 0x00800000 /* Keep bad frames (FCS) */
187 #define B43legacy_MACCTL_PROMISC 0x01000000 /* Promiscuous mode */
188 #define B43legacy_MACCTL_GMODE 0x80000000 /* G Mode */
191 #define B43legacy_SBF_MAC_ENABLED 0x00000001
192 #define B43legacy_SBF_CORE_READY 0x00000004
193 #define B43legacy_SBF_400 0x00000400 /*FIXME: fix name*/
194 #define B43legacy_SBF_XFER_REG_BYTESWAP 0x00010000
195 #define B43legacy_SBF_MODE_NOTADHOC 0x00020000
196 #define B43legacy_SBF_MODE_AP 0x00040000
197 #define B43legacy_SBF_RADIOREG_LOCK 0x00080000
198 #define B43legacy_SBF_MODE_MONITOR 0x00400000
199 #define B43legacy_SBF_MODE_PROMISC 0x01000000
200 #define B43legacy_SBF_PS1 0x02000000
201 #define B43legacy_SBF_PS2 0x04000000
202 #define B43legacy_SBF_NO_SSID_BCAST 0x08000000
203 #define B43legacy_SBF_TIME_UPDATE 0x10000000
205 /* 802.11 core specific TM State Low flags */
206 #define B43legacy_TMSLOW_GMODE 0x20000000 /* G Mode Enable */
207 #define B43legacy_TMSLOW_PLLREFSEL 0x00200000 /* PLL Freq Ref Select */
208 #define B43legacy_TMSLOW_MACPHYCLKEN 0x00100000 /* MAC PHY Clock Ctrl Enbl */
209 #define B43legacy_TMSLOW_PHYRESET 0x00080000 /* PHY Reset */
210 #define B43legacy_TMSLOW_PHYCLKEN 0x00040000 /* PHY Clock Enable */
212 /* 802.11 core specific TM State High flags */
213 #define B43legacy_TMSHIGH_FCLOCK 0x00040000 /* Fast Clock Available */
214 #define B43legacy_TMSHIGH_GPHY 0x00010000 /* G-PHY avail (rev >= 5) */
216 #define B43legacy_UCODEFLAG_AUTODIV 0x0001
218 /* Generic-Interrupt reasons. */
219 #define B43legacy_IRQ_MAC_SUSPENDED 0x00000001
220 #define B43legacy_IRQ_BEACON 0x00000002
221 #define B43legacy_IRQ_TBTT_INDI 0x00000004 /* Target Beacon Transmit Time */
222 #define B43legacy_IRQ_BEACON_TX_OK 0x00000008
223 #define B43legacy_IRQ_BEACON_CANCEL 0x00000010
224 #define B43legacy_IRQ_ATIM_END 0x00000020
225 #define B43legacy_IRQ_PMQ 0x00000040
226 #define B43legacy_IRQ_PIO_WORKAROUND 0x00000100
227 #define B43legacy_IRQ_MAC_TXERR 0x00000200
228 #define B43legacy_IRQ_PHY_TXERR 0x00000800
229 #define B43legacy_IRQ_PMEVENT 0x00001000
230 #define B43legacy_IRQ_TIMER0 0x00002000
231 #define B43legacy_IRQ_TIMER1 0x00004000
232 #define B43legacy_IRQ_DMA 0x00008000
233 #define B43legacy_IRQ_TXFIFO_FLUSH_OK 0x00010000
234 #define B43legacy_IRQ_CCA_MEASURE_OK 0x00020000
235 #define B43legacy_IRQ_NOISESAMPLE_OK 0x00040000
236 #define B43legacy_IRQ_UCODE_DEBUG 0x08000000
237 #define B43legacy_IRQ_RFKILL 0x10000000
238 #define B43legacy_IRQ_TX_OK 0x20000000
239 #define B43legacy_IRQ_PHY_G_CHANGED 0x40000000
240 #define B43legacy_IRQ_TIMEOUT 0x80000000
242 #define B43legacy_IRQ_ALL 0xFFFFFFFF
243 #define B43legacy_IRQ_MASKTEMPLATE (B43legacy_IRQ_MAC_SUSPENDED | \
244 B43legacy_IRQ_BEACON | \
245 B43legacy_IRQ_TBTT_INDI | \
246 B43legacy_IRQ_ATIM_END | \
247 B43legacy_IRQ_PMQ | \
248 B43legacy_IRQ_MAC_TXERR | \
249 B43legacy_IRQ_PHY_TXERR | \
250 B43legacy_IRQ_DMA | \
251 B43legacy_IRQ_TXFIFO_FLUSH_OK | \
252 B43legacy_IRQ_NOISESAMPLE_OK | \
253 B43legacy_IRQ_UCODE_DEBUG | \
254 B43legacy_IRQ_RFKILL | \
257 /* Device specific rate values.
258 * The actual values defined here are (rate_in_mbps * 2).
259 * Some code depends on this. Don't change it. */
260 #define B43legacy_CCK_RATE_1MB 2
261 #define B43legacy_CCK_RATE_2MB 4
262 #define B43legacy_CCK_RATE_5MB 11
263 #define B43legacy_CCK_RATE_11MB 22
264 #define B43legacy_OFDM_RATE_6MB 12
265 #define B43legacy_OFDM_RATE_9MB 18
266 #define B43legacy_OFDM_RATE_12MB 24
267 #define B43legacy_OFDM_RATE_18MB 36
268 #define B43legacy_OFDM_RATE_24MB 48
269 #define B43legacy_OFDM_RATE_36MB 72
270 #define B43legacy_OFDM_RATE_48MB 96
271 #define B43legacy_OFDM_RATE_54MB 108
272 /* Convert a b43legacy rate value to a rate in 100kbps */
273 #define B43legacy_RATE_TO_100KBPS(rate) (((rate) * 10) / 2)
276 #define B43legacy_DEFAULT_SHORT_RETRY_LIMIT 7
277 #define B43legacy_DEFAULT_LONG_RETRY_LIMIT 4
279 #define B43legacy_PHY_TX_BADNESS_LIMIT 1000
281 /* Max size of a security key */
282 #define B43legacy_SEC_KEYSIZE 16
283 /* Security algorithms. */
285 B43legacy_SEC_ALGO_NONE = 0, /* unencrypted, as of TX header. */
286 B43legacy_SEC_ALGO_WEP40,
287 B43legacy_SEC_ALGO_TKIP,
288 B43legacy_SEC_ALGO_AES,
289 B43legacy_SEC_ALGO_WEP104,
290 B43legacy_SEC_ALGO_AES_LEGACY,
293 /* Core Information Registers */
294 #define B43legacy_CIR_BASE 0xf00
295 #define B43legacy_CIR_SBTPSFLAG (B43legacy_CIR_BASE + 0x18)
296 #define B43legacy_CIR_SBIMSTATE (B43legacy_CIR_BASE + 0x90)
297 #define B43legacy_CIR_SBINTVEC (B43legacy_CIR_BASE + 0x94)
298 #define B43legacy_CIR_SBTMSTATELOW (B43legacy_CIR_BASE + 0x98)
299 #define B43legacy_CIR_SBTMSTATEHIGH (B43legacy_CIR_BASE + 0x9c)
300 #define B43legacy_CIR_SBIMCONFIGLOW (B43legacy_CIR_BASE + 0xa8)
301 #define B43legacy_CIR_SB_ID_HI (B43legacy_CIR_BASE + 0xfc)
303 /* sbtmstatehigh state flags */
304 #define B43legacy_SBTMSTATEHIGH_SERROR 0x00000001
305 #define B43legacy_SBTMSTATEHIGH_BUSY 0x00000004
306 #define B43legacy_SBTMSTATEHIGH_TIMEOUT 0x00000020
307 #define B43legacy_SBTMSTATEHIGH_G_PHY_AVAIL 0x00010000
308 #define B43legacy_SBTMSTATEHIGH_COREFLAGS 0x1FFF0000
309 #define B43legacy_SBTMSTATEHIGH_DMA64BIT 0x10000000
310 #define B43legacy_SBTMSTATEHIGH_GATEDCLK 0x20000000
311 #define B43legacy_SBTMSTATEHIGH_BISTFAILED 0x40000000
312 #define B43legacy_SBTMSTATEHIGH_BISTCOMPLETE 0x80000000
314 /* sbimstate flags */
315 #define B43legacy_SBIMSTATE_IB_ERROR 0x20000
316 #define B43legacy_SBIMSTATE_TIMEOUT 0x40000
318 #define PFX KBUILD_MODNAME ": "
322 #ifdef CONFIG_B43LEGACY_DEBUG
323 # define B43legacy_WARN_ON(expr) \
325 if (unlikely((expr))) { \
326 printk(KERN_INFO PFX "Test (%s) failed at:" \
329 __LINE__, __FUNCTION__); \
332 # define B43legacy_BUG_ON(expr) \
334 if (unlikely((expr))) { \
335 printk(KERN_INFO PFX "Test (%s) failed\n", \
340 # define B43legacy_DEBUG 1
342 # define B43legacy_WARN_ON(x) do { /* nothing */ } while (0)
343 # define B43legacy_BUG_ON(x) do { /* nothing */ } while (0)
344 # define B43legacy_DEBUG 0
350 struct b43legacy_dmaring;
351 struct b43legacy_pioqueue;
353 /* The firmware file header */
354 #define B43legacy_FW_TYPE_UCODE 'u'
355 #define B43legacy_FW_TYPE_PCM 'p'
356 #define B43legacy_FW_TYPE_IV 'i'
357 struct b43legacy_fw_header {
360 /* File format version */
363 /* Size of the data. For ucode and PCM this is in bytes.
364 * For IV this is number-of-ivs. */
366 } __attribute__((__packed__));
368 /* Initial Value file format */
369 #define B43legacy_IV_OFFSET_MASK 0x7FFF
370 #define B43legacy_IV_32BIT 0x8000
371 struct b43legacy_iv {
376 } data __attribute__((__packed__));
377 } __attribute__((__packed__));
379 #define B43legacy_PHYMODE(phytype) (1 << (phytype))
380 #define B43legacy_PHYMODE_B B43legacy_PHYMODE \
381 ((B43legacy_PHYTYPE_B))
382 #define B43legacy_PHYMODE_G B43legacy_PHYMODE \
383 ((B43legacy_PHYTYPE_G))
385 /* Value pair to measure the LocalOscillator. */
386 struct b43legacy_lopair {
391 #define B43legacy_LO_COUNT (14*4)
393 struct b43legacy_phy {
394 /* Possible PHYMODEs on this PHY */
395 u8 possible_phymodes;
396 /* GMODE bit enabled in MACCTL? */
398 /* Possible ieee80211 subsystem hwmodes for this PHY.
399 * Which mode is selected, depends on thr GMODE enabled bit */
400 #define B43legacy_MAX_PHYHWMODES 2
401 struct ieee80211_hw_mode hwmodes[B43legacy_MAX_PHYHWMODES];
405 /* B43legacy_PHYTYPE_ */
407 /* PHY revision number. */
410 u16 antenna_diversity;
412 /* Radio versioning */
413 u16 radio_manuf; /* Radio manufacturer */
414 u16 radio_ver; /* Radio version */
416 u8 radio_rev; /* Radio revision */
418 bool locked; /* Only used in b43legacy_phy_{un}lock() */
419 bool dyn_tssi_tbl; /* tssi2dbm is kmalloc()ed. */
421 /* ACI (adjacent channel interference) flags. */
423 bool aci_wlan_automatic;
426 /* Radio switched on/off */
429 /* Values saved when turning the radio off.
430 * They are needed when turning it on again. */
439 /* LO Measurement Data.
440 * Use b43legacy_get_lopair() to get a value.
442 struct b43legacy_lopair *_lo_pairs;
443 /* TSSI to dBm table in use */
445 /* idle TSSI value */
447 /* Target idle TSSI */
449 /* Current idle TSSI */
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 */
461 /* PHY lock for core.rev < 3
462 * This lock is only used by b43legacy_phy_{un}lock()
466 /* Desired TX power level (in dBm). This is set by the user and
467 * adjusted in b43legacy_phy_xmitpower(). */
470 /* Values from b43legacy_calc_loopback_gain() */
471 u16 loopback_gain[2];
473 /* TX Power control values. */
476 /* Current Radio Attenuation for TXpower recalculation. */
478 /* Current Baseband Attenuation for TXpower recalculation. */
480 /* Current TXpower control value for TXpower recalculation. */
489 #ifdef CONFIG_B43LEGACY_DEBUG
490 bool manual_txpower_control; /* Manual TX-power control enabled? */
492 /* Current Interference Mitigation mode */
494 /* Stack of saved values from the Interference Mitigation code.
495 * Each value in the stack is layed out as follows:
497 * bit 12-15: register ID
499 * register ID is: 0x1 PHY, 0x2 Radio, 0x3 ILT
501 #define B43legacy_INTERFSTACK_SIZE 26
502 u32 interfstack[B43legacy_INTERFSTACK_SIZE];
504 /* Saved values from the NRSSI Slope calculation */
507 /* In memory nrssi lookup table. */
510 /* current channel */
517 /* PHY TX errors counter. */
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;
530 struct b43legacy_dmaring *rx_ring0;
531 struct b43legacy_dmaring *rx_ring3; /* only on core.rev < 5 */
534 /* Data structures for PIO transmission, per 80211 core. */
535 struct b43legacy_pio {
536 struct b43legacy_pioqueue *queue0;
537 struct b43legacy_pioqueue *queue1;
538 struct b43legacy_pioqueue *queue2;
539 struct b43legacy_pioqueue *queue3;
542 /* Context information for a noise calculation (Link Quality). */
543 struct b43legacy_noise_calculation {
545 bool calculation_running;
550 struct b43legacy_stats {
552 /* Store the last TX/RX times here for updating the leds. */
553 unsigned long last_tx;
554 unsigned long last_rx;
557 struct b43legacy_key {
563 struct b43legacy_wldev;
565 /* Data structure for the WLAN parts (802.11 cores) of the b43legacy chip. */
566 struct b43legacy_wl {
567 /* Pointer to the active wireless device on this chip */
568 struct b43legacy_wldev *current_dev;
569 /* Pointer to the ieee80211 hardware data structure */
570 struct ieee80211_hw *hw;
572 spinlock_t irq_lock; /* locks IRQ */
573 struct mutex mutex; /* locks wireless core state */
574 spinlock_t leds_lock; /* lock for leds */
576 /* We can only have one operating interface (802.11 core)
577 * at a time. General information about this interface follows.
580 /* Opaque ID of the operating interface from the ieee80211
581 * subsystem. Do not modify.
584 /* MAC address (can be NULL). */
585 u8 mac_addr[ETH_ALEN];
586 /* Current BSSID (can be NULL). */
588 /* Interface type. (IEEE80211_IF_TYPE_XXX) */
590 /* Is the card operating in AP, STA or IBSS mode? */
593 unsigned int filter_flags;
594 /* Stats about the wireless interface */
595 struct ieee80211_low_level_stats ieee_stats;
599 char rng_name[30 + 1];
601 /* The RF-kill button */
602 struct b43legacy_rfkill rfkill;
604 /* List of all wireless devices on this chip */
605 struct list_head devlist;
608 bool radiotap_enabled;
611 /* Pointers to the firmware data and meta information about it. */
612 struct b43legacy_firmware {
614 const struct firmware *ucode;
616 const struct firmware *pcm;
617 /* Initial MMIO values for the firmware */
618 const struct firmware *initvals;
619 /* Initial MMIO values for the firmware, band-specific */
620 const struct firmware *initvals_band;
621 /* Firmware revision */
623 /* Firmware patchlevel */
627 /* Device (802.11 core) initialization status. */
629 B43legacy_STAT_UNINIT = 0, /* Uninitialized. */
630 B43legacy_STAT_INITIALIZED = 1, /* Initialized, not yet started. */
631 B43legacy_STAT_STARTED = 2, /* Up and running. */
633 #define b43legacy_status(wldev) atomic_read(&(wldev)->__init_status)
634 #define b43legacy_set_status(wldev, stat) do { \
635 atomic_set(&(wldev)->__init_status, (stat)); \
639 /* *** --- HOW LOCKING WORKS IN B43legacy --- ***
641 * You should always acquire both, wl->mutex and wl->irq_lock unless:
642 * - You don't need to acquire wl->irq_lock, if the interface is stopped.
643 * - You don't need to acquire wl->mutex in the IRQ handler, IRQ tasklet
644 * and packet TX path (and _ONLY_ there.)
647 /* Data structure for one wireless device (802.11 core) */
648 struct b43legacy_wldev {
649 struct ssb_device *dev;
650 struct b43legacy_wl *wl;
652 /* The device initialization status.
653 * Use b43legacy_status() to query. */
654 atomic_t __init_status;
655 /* Saved init status for handling suspend. */
656 int suspend_init_status;
658 bool __using_pio; /* Using pio rather than dma. */
659 bool bad_frames_preempt;/* Use "Bad Frames Preemption". */
660 bool reg124_set_0x4; /* Variable to keep track of IRQ. */
661 bool short_preamble; /* TRUE if using short preamble. */
662 bool short_slot; /* TRUE if using short slot timing. */
663 bool radio_hw_enable; /* State of radio hardware enable bit. */
665 /* PHY/Radio device. */
666 struct b43legacy_phy phy;
669 struct b43legacy_dma dma;
671 struct b43legacy_pio pio;
674 /* Various statistics about the physical device. */
675 struct b43legacy_stats stats;
677 /* The device LEDs. */
678 struct b43legacy_led led_tx;
679 struct b43legacy_led led_rx;
680 struct b43legacy_led led_assoc;
681 struct b43legacy_led led_radio;
683 /* Reason code of the last interrupt. */
686 /* saved irq enable/disable state bitfield. */
688 /* Link Quality calculation context. */
689 struct b43legacy_noise_calculation noisecalc;
690 /* if > 0 MAC is suspended. if == 0 MAC is enabled. */
693 /* Interrupt Service Routine tasklet (bottom-half) */
694 struct tasklet_struct isr_tasklet;
697 struct delayed_work periodic_work;
698 unsigned int periodic_state;
700 struct work_struct restart_work;
702 /* encryption/decryption */
703 u16 ktp; /* Key table pointer */
705 struct b43legacy_key key[58];
707 /* Cached beacon template while uploading the template. */
708 struct sk_buff *cached_beacon;
711 struct b43legacy_firmware fw;
713 /* Devicelist in struct b43legacy_wl (all 802.11 cores) */
714 struct list_head list;
716 /* Debugging stuff follows. */
717 #ifdef CONFIG_B43LEGACY_DEBUG
718 struct b43legacy_dfsentry *dfsentry;
724 struct b43legacy_wl *hw_to_b43legacy_wl(struct ieee80211_hw *hw)
729 /* Helper function, which returns a boolean.
730 * TRUE, if PIO is used; FALSE, if DMA is used.
732 #if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
734 int b43legacy_using_pio(struct b43legacy_wldev *dev)
736 return dev->__using_pio;
738 #elif defined(CONFIG_B43LEGACY_DMA)
740 int b43legacy_using_pio(struct b43legacy_wldev *dev)
744 #elif defined(CONFIG_B43LEGACY_PIO)
746 int b43legacy_using_pio(struct b43legacy_wldev *dev)
751 # error "Using neither DMA nor PIO? Confused..."
756 struct b43legacy_wldev *dev_to_b43legacy_wldev(struct device *dev)
758 struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
759 return ssb_get_drvdata(ssb_dev);
762 /* Is the device operating in a specified mode (IEEE80211_IF_TYPE_XXX). */
764 int b43legacy_is_mode(struct b43legacy_wl *wl, int type)
766 return (wl->operating &&
767 wl->if_type == type);
771 bool is_bcm_board_vendor(struct b43legacy_wldev *dev)
773 return (dev->dev->bus->boardinfo.vendor == PCI_VENDOR_ID_BROADCOM);
777 u16 b43legacy_read16(struct b43legacy_wldev *dev, u16 offset)
779 return ssb_read16(dev->dev, offset);
783 void b43legacy_write16(struct b43legacy_wldev *dev, u16 offset, u16 value)
785 ssb_write16(dev->dev, offset, value);
789 u32 b43legacy_read32(struct b43legacy_wldev *dev, u16 offset)
791 return ssb_read32(dev->dev, offset);
795 void b43legacy_write32(struct b43legacy_wldev *dev, u16 offset, u32 value)
797 ssb_write32(dev->dev, offset, value);
801 struct b43legacy_lopair *b43legacy_get_lopair(struct b43legacy_phy *phy,
802 u16 radio_attenuation,
803 u16 baseband_attenuation)
805 return phy->_lo_pairs + (radio_attenuation
806 + 14 * (baseband_attenuation / 2));
811 /* Message printing */
812 void b43legacyinfo(struct b43legacy_wl *wl, const char *fmt, ...)
813 __attribute__((format(printf, 2, 3)));
814 void b43legacyerr(struct b43legacy_wl *wl, const char *fmt, ...)
815 __attribute__((format(printf, 2, 3)));
816 void b43legacywarn(struct b43legacy_wl *wl, const char *fmt, ...)
817 __attribute__((format(printf, 2, 3)));
819 void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...)
820 __attribute__((format(printf, 2, 3)));
822 # define b43legacydbg(wl, fmt...) do { /* nothing */ } while (0)
826 /** Limit a value between two limits */
830 #define limit_value(value, min, max) \
832 typeof(value) __value = (value); \
833 typeof(value) __min = (min); \
834 typeof(value) __max = (max); \
835 if (__value < __min) \
837 else if (__value > __max) \
842 /* Macros for printing a value in Q5.2 format */
843 #define Q52_FMT "%u.%u"
844 #define Q52_ARG(q52) ((q52) / 4), (((q52) & 3) * 100 / 4)
846 #endif /* B43legacy_H_ */