drivers/net/wireless/b43legacy/b43legacy.h

   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 <asm/atomic.h>
  12 #include <linux/io.h>
  13
  14 #include <linux/ssb/ssb.h>
  15 #include <linux/ssb/ssb_driver_chipcommon.h>
  16
  17 #include <linux/wireless.h>
  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 /* The unique identifier of the firmware that's officially supported by this
  27  * driver version. */
  28 #define B43legacy_SUPPORTED_FIRMWARE_ID "FW10"
  29
  30 #define B43legacy_IRQWAIT_MAX_RETRIES   20
  31
  32 #define B43legacy_RX_MAX_SSI            60 /* best guess at max ssi */
  33
  34 /* MMIO offsets */
  35 #define B43legacy_MMIO_DMA0_REASON      0x20
  36 #define B43legacy_MMIO_DMA0_IRQ_MASK    0x24
  37 #define B43legacy_MMIO_DMA1_REASON      0x28
  38 #define B43legacy_MMIO_DMA1_IRQ_MASK    0x2C
  39 #define B43legacy_MMIO_DMA2_REASON      0x30
  40 #define B43legacy_MMIO_DMA2_IRQ_MASK    0x34
  41 #define B43legacy_MMIO_DMA3_REASON      0x38
  42 #define B43legacy_MMIO_DMA3_IRQ_MASK    0x3C
  43 #define B43legacy_MMIO_DMA4_REASON      0x40
  44 #define B43legacy_MMIO_DMA4_IRQ_MASK    0x44
  45 #define B43legacy_MMIO_DMA5_REASON      0x48
  46 #define B43legacy_MMIO_DMA5_IRQ_MASK    0x4C
  47 #define B43legacy_MMIO_MACCTL           0x120   /* MAC control */
  48 #define B43legacy_MMIO_MACCMD           0x124   /* MAC command */
  49 #define B43legacy_MMIO_GEN_IRQ_REASON   0x128
  50 #define B43legacy_MMIO_GEN_IRQ_MASK     0x12C
  51 #define B43legacy_MMIO_RAM_CONTROL      0x130
  52 #define B43legacy_MMIO_RAM_DATA         0x134
  53 #define B43legacy_MMIO_PS_STATUS                0x140
  54 #define B43legacy_MMIO_RADIO_HWENABLED_HI       0x158
  55 #define B43legacy_MMIO_SHM_CONTROL      0x160
  56 #define B43legacy_MMIO_SHM_DATA         0x164
  57 #define B43legacy_MMIO_SHM_DATA_UNALIGNED       0x166
  58 #define B43legacy_MMIO_XMITSTAT_0               0x170
  59 #define B43legacy_MMIO_XMITSTAT_1               0x174
  60 #define B43legacy_MMIO_REV3PLUS_TSF_LOW 0x180 /* core rev >= 3 only */
  61 #define B43legacy_MMIO_REV3PLUS_TSF_HIGH        0x184 /* core rev >= 3 only */
  62
  63 /* 32-bit DMA */
  64 #define B43legacy_MMIO_DMA32_BASE0      0x200
  65 #define B43legacy_MMIO_DMA32_BASE1      0x220
  66 #define B43legacy_MMIO_DMA32_BASE2      0x240
  67 #define B43legacy_MMIO_DMA32_BASE3      0x260
  68 #define B43legacy_MMIO_DMA32_BASE4      0x280
  69 #define B43legacy_MMIO_DMA32_BASE5      0x2A0
  70 /* 64-bit DMA */
  71 #define B43legacy_MMIO_DMA64_BASE0      0x200
  72 #define B43legacy_MMIO_DMA64_BASE1      0x240
  73 #define B43legacy_MMIO_DMA64_BASE2      0x280
  74 #define B43legacy_MMIO_DMA64_BASE3      0x2C0
  75 #define B43legacy_MMIO_DMA64_BASE4      0x300
  76 #define B43legacy_MMIO_DMA64_BASE5      0x340
  77 /* PIO */
  78 #define B43legacy_MMIO_PIO1_BASE                0x300
  79 #define B43legacy_MMIO_PIO2_BASE                0x310
  80 #define B43legacy_MMIO_PIO3_BASE                0x320
  81 #define B43legacy_MMIO_PIO4_BASE                0x330
  82
  83 #define B43legacy_MMIO_PHY_VER          0x3E0
  84 #define B43legacy_MMIO_PHY_RADIO                0x3E2
  85 #define B43legacy_MMIO_PHY0             0x3E6
  86 #define B43legacy_MMIO_ANTENNA          0x3E8
  87 #define B43legacy_MMIO_CHANNEL          0x3F0
  88 #define B43legacy_MMIO_CHANNEL_EXT      0x3F4
  89 #define B43legacy_MMIO_RADIO_CONTROL    0x3F6
  90 #define B43legacy_MMIO_RADIO_DATA_HIGH  0x3F8
  91 #define B43legacy_MMIO_RADIO_DATA_LOW   0x3FA
  92 #define B43legacy_MMIO_PHY_CONTROL      0x3FC
  93 #define B43legacy_MMIO_PHY_DATA         0x3FE
  94 #define B43legacy_MMIO_MACFILTER_CONTROL        0x420
  95 #define B43legacy_MMIO_MACFILTER_DATA   0x422
  96 #define B43legacy_MMIO_RCMTA_COUNT      0x43C /* Receive Match Transmitter Addr */
  97 #define B43legacy_MMIO_RADIO_HWENABLED_LO       0x49A
  98 #define B43legacy_MMIO_GPIO_CONTROL     0x49C
  99 #define B43legacy_MMIO_GPIO_MASK                0x49E
 100 #define B43legacy_MMIO_TSF_CFP_PRETBTT  0x612
 101 #define B43legacy_MMIO_TSF_0            0x632 /* core rev < 3 only */
 102 #define B43legacy_MMIO_TSF_1            0x634 /* core rev < 3 only */
 103 #define B43legacy_MMIO_TSF_2            0x636 /* core rev < 3 only */
 104 #define B43legacy_MMIO_TSF_3            0x638 /* core rev < 3 only */
 105 #define B43legacy_MMIO_RNG              0x65A
 106 #define B43legacy_MMIO_POWERUP_DELAY    0x6A8
 107
 108 /* SPROM boardflags_lo values */
 109 #define B43legacy_BFL_PACTRL            0x0002
 110 #define B43legacy_BFL_RSSI              0x0008
 111 #define B43legacy_BFL_EXTLNA            0x1000
 112
 113 /* GPIO register offset, in both ChipCommon and PCI core. */
 114 #define B43legacy_GPIO_CONTROL          0x6c
 115
 116 /* SHM Routing */
 117 #define B43legacy_SHM_SHARED            0x0001
 118 #define B43legacy_SHM_WIRELESS          0x0002
 119 #define B43legacy_SHM_HW                0x0004
 120 #define B43legacy_SHM_UCODE             0x0300
 121
 122 /* SHM Routing modifiers */
 123 #define B43legacy_SHM_AUTOINC_R         0x0200 /* Read Auto-increment */
 124 #define B43legacy_SHM_AUTOINC_W         0x0100 /* Write Auto-increment */
 125 #define B43legacy_SHM_AUTOINC_RW        (B43legacy_SHM_AUTOINC_R | \
 126                                          B43legacy_SHM_AUTOINC_W)
 127
 128 /* Misc SHM_SHARED offsets */
 129 #define B43legacy_SHM_SH_WLCOREREV      0x0016 /* 802.11 core revision */
 130 #define B43legacy_SHM_SH_HOSTFLO        0x005E /* Hostflags ucode opts (low) */
 131 #define B43legacy_SHM_SH_HOSTFHI        0x0060 /* Hostflags ucode opts (high) */
 132 /* SHM_SHARED crypto engine */
 133 #define B43legacy_SHM_SH_KEYIDXBLOCK    0x05D4 /* Key index/algorithm block */
 134 /* SHM_SHARED beacon/AP variables */
 135 #define B43legacy_SHM_SH_DTIMP          0x0012 /* DTIM period */
 136 #define B43legacy_SHM_SH_BTL0           0x0018 /* Beacon template length 0 */
 137 #define B43legacy_SHM_SH_BTL1           0x001A /* Beacon template length 1 */
 138 #define B43legacy_SHM_SH_BTSFOFF        0x001C /* Beacon TSF offset */
 139 #define B43legacy_SHM_SH_TIMPOS         0x001E /* TIM position in beacon */
 140 #define B43legacy_SHM_SH_BEACPHYCTL     0x0054 /* Beacon PHY TX control word */
 141 /* SHM_SHARED ACK/CTS control */
 142 #define B43legacy_SHM_SH_ACKCTSPHYCTL   0x0022 /* ACK/CTS PHY control word */
 143 /* SHM_SHARED probe response variables */
 144 #define B43legacy_SHM_SH_PRTLEN         0x004A /* Probe Response template length */
 145 #define B43legacy_SHM_SH_PRMAXTIME      0x0074 /* Probe Response max time */
 146 #define B43legacy_SHM_SH_PRPHYCTL       0x0188 /* Probe Resp PHY TX control */
 147 /* SHM_SHARED rate tables */
 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_BEACON |         \
 258                                          B43legacy_IRQ_TBTT_INDI |      \
 259                                          B43legacy_IRQ_ATIM_END |       \
 260                                          B43legacy_IRQ_PMQ |            \
 261                                          B43legacy_IRQ_MAC_TXERR |      \
 262                                          B43legacy_IRQ_PHY_TXERR |      \
 263                                          B43legacy_IRQ_DMA |            \
 264                                          B43legacy_IRQ_TXFIFO_FLUSH_OK | \
 265                                          B43legacy_IRQ_NOISESAMPLE_OK | \
 266                                          B43legacy_IRQ_UCODE_DEBUG |    \
 267                                          B43legacy_IRQ_RFKILL |         \
 268                                          B43legacy_IRQ_TX_OK)
 269
 270 /* Device specific rate values.
 271  * The actual values defined here are (rate_in_mbps * 2).
 272  * Some code depends on this. Don't change it. */
 273 #define B43legacy_CCK_RATE_1MB          2
 274 #define B43legacy_CCK_RATE_2MB          4
 275 #define B43legacy_CCK_RATE_5MB          11
 276 #define B43legacy_CCK_RATE_11MB         22
 277 #define B43legacy_OFDM_RATE_6MB         12
 278 #define B43legacy_OFDM_RATE_9MB         18
 279 #define B43legacy_OFDM_RATE_12MB        24
 280 #define B43legacy_OFDM_RATE_18MB        36
 281 #define B43legacy_OFDM_RATE_24MB        48
 282 #define B43legacy_OFDM_RATE_36MB        72
 283 #define B43legacy_OFDM_RATE_48MB        96
 284 #define B43legacy_OFDM_RATE_54MB        108
 285 /* Convert a b43legacy rate value to a rate in 100kbps */
 286 #define B43legacy_RATE_TO_100KBPS(rate) (((rate) * 10) / 2)
 287
 288
 289 #define B43legacy_DEFAULT_SHORT_RETRY_LIMIT     7
 290 #define B43legacy_DEFAULT_LONG_RETRY_LIMIT      4
 291
 292 #define B43legacy_PHY_TX_BADNESS_LIMIT          1000
 293
 294 /* Max size of a security key */
 295 #define B43legacy_SEC_KEYSIZE           16
 296 /* Security algorithms. */
 297 enum {
 298         B43legacy_SEC_ALGO_NONE = 0, /* unencrypted, as of TX header. */
 299         B43legacy_SEC_ALGO_WEP40,
 300         B43legacy_SEC_ALGO_TKIP,
 301         B43legacy_SEC_ALGO_AES,
 302         B43legacy_SEC_ALGO_WEP104,
 303         B43legacy_SEC_ALGO_AES_LEGACY,
 304 };
 305
 306 /* Core Information Registers */
 307 #define B43legacy_CIR_BASE                0xf00
 308 #define B43legacy_CIR_SBTPSFLAG           (B43legacy_CIR_BASE + 0x18)
 309 #define B43legacy_CIR_SBIMSTATE           (B43legacy_CIR_BASE + 0x90)
 310 #define B43legacy_CIR_SBINTVEC            (B43legacy_CIR_BASE + 0x94)
 311 #define B43legacy_CIR_SBTMSTATELOW        (B43legacy_CIR_BASE + 0x98)
 312 #define B43legacy_CIR_SBTMSTATEHIGH       (B43legacy_CIR_BASE + 0x9c)
 313 #define B43legacy_CIR_SBIMCONFIGLOW       (B43legacy_CIR_BASE + 0xa8)
 314 #define B43legacy_CIR_SB_ID_HI            (B43legacy_CIR_BASE + 0xfc)
 315
 316 /* sbtmstatehigh state flags */
 317 #define B43legacy_SBTMSTATEHIGH_SERROR          0x00000001
 318 #define B43legacy_SBTMSTATEHIGH_BUSY            0x00000004
 319 #define B43legacy_SBTMSTATEHIGH_TIMEOUT         0x00000020
 320 #define B43legacy_SBTMSTATEHIGH_G_PHY_AVAIL     0x00010000
 321 #define B43legacy_SBTMSTATEHIGH_COREFLAGS       0x1FFF0000
 322 #define B43legacy_SBTMSTATEHIGH_DMA64BIT        0x10000000
 323 #define B43legacy_SBTMSTATEHIGH_GATEDCLK        0x20000000
 324 #define B43legacy_SBTMSTATEHIGH_BISTFAILED      0x40000000
 325 #define B43legacy_SBTMSTATEHIGH_BISTCOMPLETE    0x80000000
 326
 327 /* sbimstate flags */
 328 #define B43legacy_SBIMSTATE_IB_ERROR            0x20000
 329 #define B43legacy_SBIMSTATE_TIMEOUT             0x40000
 330
 331 #define PFX             KBUILD_MODNAME ": "
 332 #ifdef assert
 333 # undef assert
 334 #endif
 335 #ifdef CONFIG_B43LEGACY_DEBUG
 336 # define B43legacy_WARN_ON(x)   WARN_ON(x)
 337 # define B43legacy_BUG_ON(expr)                                         \
 338         do {                                                            \
 339                 if (unlikely((expr))) {                                 \
 340                         printk(KERN_INFO PFX "Test (%s) failed\n",      \
 341                                               #expr);                   \
 342                         BUG_ON(expr);                                   \
 343                 }                                                       \
 344         } while (0)
 345 # define B43legacy_DEBUG        1
 346 #else
 347 /* This will evaluate the argument even if debugging is disabled. */
 348 static inline bool __b43legacy_warn_on_dummy(bool x) { return x; }
 349 # define B43legacy_WARN_ON(x)   __b43legacy_warn_on_dummy(unlikely(!!(x)))
 350 # define B43legacy_BUG_ON(x)    do { /* nothing */ } while (0)
 351 # define B43legacy_DEBUG        0
 352 #endif
 353
 354
 355 struct net_device;
 356 struct pci_dev;
 357 struct b43legacy_dmaring;
 358 struct b43legacy_pioqueue;
 359
 360 /* The firmware file header */
 361 #define B43legacy_FW_TYPE_UCODE 'u'
 362 #define B43legacy_FW_TYPE_PCM   'p'
 363 #define B43legacy_FW_TYPE_IV    'i'
 364 struct b43legacy_fw_header {
 365         /* File type */
 366         u8 type;
 367         /* File format version */
 368         u8 ver;
 369         u8 __padding[2];
 370         /* Size of the data. For ucode and PCM this is in bytes.
 371          * For IV this is number-of-ivs. */
 372         __be32 size;
 373 } __attribute__((__packed__));
 374
 375 /* Initial Value file format */
 376 #define B43legacy_IV_OFFSET_MASK        0x7FFF
 377 #define B43legacy_IV_32BIT              0x8000
 378 struct b43legacy_iv {
 379         __be16 offset_size;
 380         union {
 381                 __be16 d16;
 382                 __be32 d32;
 383         } data __attribute__((__packed__));
 384 } __attribute__((__packed__));
 385
 386 #define B43legacy_PHYMODE(phytype)      (1 << (phytype))
 387 #define B43legacy_PHYMODE_B             B43legacy_PHYMODE       \
 388                                         ((B43legacy_PHYTYPE_B))
 389 #define B43legacy_PHYMODE_G             B43legacy_PHYMODE       \
 390                                         ((B43legacy_PHYTYPE_G))
 391
 392 /* Value pair to measure the LocalOscillator. */
 393 struct b43legacy_lopair {
 394         s8 low;
 395         s8 high;
 396         u8 used:1;
 397 };
 398 #define B43legacy_LO_COUNT      (14*4)
 399
 400 struct b43legacy_phy {
 401         /* Possible PHYMODEs on this PHY */
 402         u8 possible_phymodes;
 403         /* GMODE bit enabled in MACCTL? */
 404         bool gmode;
 405
 406         /* Analog Type */
 407         u8 analog;
 408         /* B43legacy_PHYTYPE_ */
 409         u8 type;
 410         /* PHY revision number. */
 411         u8 rev;
 412
 413         u16 antenna_diversity;
 414         u16 savedpctlreg;
 415         /* Radio versioning */
 416         u16 radio_manuf;        /* Radio manufacturer */
 417         u16 radio_ver;          /* Radio version */
 418         u8 calibrated:1;
 419         u8 radio_rev;           /* Radio revision */
 420
 421         bool dyn_tssi_tbl;      /* tssi2dbm is kmalloc()ed. */
 422
 423         /* ACI (adjacent channel interference) flags. */
 424         bool aci_enable;
 425         bool aci_wlan_automatic;
 426         bool aci_hw_rssi;
 427
 428         /* Radio switched on/off */
 429         bool radio_on;
 430         struct {
 431                 /* Values saved when turning the radio off.
 432                  * They are needed when turning it on again. */
 433                 bool valid;
 434                 u16 rfover;
 435                 u16 rfoverval;
 436         } radio_off_context;
 437
 438         u16 minlowsig[2];
 439         u16 minlowsigpos[2];
 440
 441         /* LO Measurement Data.
 442          * Use b43legacy_get_lopair() to get a value.
 443          */
 444         struct b43legacy_lopair *_lo_pairs;
 445         /* TSSI to dBm table in use */
 446         const s8 *tssi2dbm;
 447         /* idle TSSI value */
 448         s8 idle_tssi;
 449         /* Target idle TSSI */
 450         int tgt_idle_tssi;
 451         /* Current idle TSSI */
 452         int cur_idle_tssi;
 453
 454         /* LocalOscillator control values. */
 455         struct b43legacy_txpower_lo_control *lo_control;
 456         /* Values from b43legacy_calc_loopback_gain() */
 457         s16 max_lb_gain;        /* Maximum Loopback gain in hdB */
 458         s16 trsw_rx_gain;       /* TRSW RX gain in hdB */
 459         s16 lna_lod_gain;       /* LNA lod */
 460         s16 lna_gain;           /* LNA */
 461         s16 pga_gain;           /* PGA */
 462
 463         /* Desired TX power level (in dBm). This is set by the user and
 464          * adjusted in b43legacy_phy_xmitpower(). */
 465         u8 power_level;
 466
 467         /* Values from b43legacy_calc_loopback_gain() */
 468         u16 loopback_gain[2];
 469
 470         /* TX Power control values. */
 471         /* B/G PHY */
 472         struct {
 473                 /* Current Radio Attenuation for TXpower recalculation. */
 474                 u16 rfatt;
 475                 /* Current Baseband Attenuation for TXpower recalculation. */
 476                 u16 bbatt;
 477                 /* Current TXpower control value for TXpower recalculation. */
 478                 u16 txctl1;
 479                 u16 txctl2;
 480         };
 481         /* A PHY */
 482         struct {
 483                 u16 txpwr_offset;
 484         };
 485
 486         /* Current Interference Mitigation mode */
 487         int interfmode;
 488         /* Stack of saved values from the Interference Mitigation code.
 489          * Each value in the stack is layed out as follows:
 490          * bit 0-11:  offset
 491          * bit 12-15: register ID
 492          * bit 16-32: value
 493          * register ID is: 0x1 PHY, 0x2 Radio, 0x3 ILT
 494          */
 495 #define B43legacy_INTERFSTACK_SIZE      26
 496         u32 interfstack[B43legacy_INTERFSTACK_SIZE];
 497
 498         /* Saved values from the NRSSI Slope calculation */
 499         s16 nrssi[2];
 500         s32 nrssislope;
 501         /* In memory nrssi lookup table. */
 502         s8 nrssi_lt[64];
 503
 504         /* current channel */
 505         u8 channel;
 506
 507         u16 lofcal;
 508
 509         u16 initval;
 510
 511         /* PHY TX errors counter. */
 512         atomic_t txerr_cnt;
 513
 514 #if B43legacy_DEBUG
 515         /* Manual TX-power control enabled? */
 516         bool manual_txpower_control;
 517         /* PHY registers locked by b43legacy_phy_lock()? */
 518         bool phy_locked;
 519 #endif /* B43legacy_DEBUG */
 520 };
 521
 522 /* Data structures for DMA transmission, per 80211 core. */
 523 struct b43legacy_dma {
 524         struct b43legacy_dmaring *tx_ring0;
 525         struct b43legacy_dmaring *tx_ring1;
 526         struct b43legacy_dmaring *tx_ring2;
 527         struct b43legacy_dmaring *tx_ring3;
 528         struct b43legacy_dmaring *tx_ring4;
 529         struct b43legacy_dmaring *tx_ring5;
 530
 531         struct b43legacy_dmaring *rx_ring0;
 532         struct b43legacy_dmaring *rx_ring3; /* only on core.rev < 5 */
 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 struct b43legacy_wldev;
 565
 566 /* Data structure for the WLAN parts (802.11 cores) of the b43legacy chip. */
 567 struct b43legacy_wl {
 568         /* Pointer to the active wireless device on this chip */
 569         struct b43legacy_wldev *current_dev;
 570         /* Pointer to the ieee80211 hardware data structure */
 571         struct ieee80211_hw *hw;
 572
 573         spinlock_t irq_lock;            /* locks IRQ */
 574         struct mutex mutex;             /* locks wireless core state */
 575         spinlock_t leds_lock;           /* lock for leds */
 576
 577         /* We can only have one operating interface (802.11 core)
 578          * at a time. General information about this interface follows.
 579          */
 580
 581         struct ieee80211_vif *vif;
 582         /* MAC address (can be NULL). */
 583         u8 mac_addr[ETH_ALEN];
 584         /* Current BSSID (can be NULL). */
 585         u8 bssid[ETH_ALEN];
 586         /* Interface type. (IEEE80211_IF_TYPE_XXX) */
 587         int if_type;
 588         /* Is the card operating in AP, STA or IBSS mode? */
 589         bool operating;
 590         /* filter flags */
 591         unsigned int filter_flags;
 592         /* Stats about the wireless interface */
 593         struct ieee80211_low_level_stats ieee_stats;
 594
 595         struct hwrng rng;
 596         u8 rng_initialized;
 597         char rng_name[30 + 1];
 598
 599         /* The RF-kill button */
 600         struct b43legacy_rfkill rfkill;
 601
 602         /* List of all wireless devices on this chip */
 603         struct list_head devlist;
 604         u8 nr_devs;
 605
 606         bool radiotap_enabled;
 607
 608         /* The beacon we are currently using (AP or IBSS mode).
 609          * This beacon stuff is protected by the irq_lock. */
 610         struct sk_buff *current_beacon;
 611         bool beacon0_uploaded;
 612         bool beacon1_uploaded;
 613 };
 614
 615 /* Pointers to the firmware data and meta information about it. */
 616 struct b43legacy_firmware {
 617         /* Microcode */
 618         const struct firmware *ucode;
 619         /* PCM code */
 620         const struct firmware *pcm;
 621         /* Initial MMIO values for the firmware */
 622         const struct firmware *initvals;
 623         /* Initial MMIO values for the firmware, band-specific */
 624         const struct firmware *initvals_band;
 625         /* Firmware revision */
 626         u16 rev;
 627         /* Firmware patchlevel */
 628         u16 patch;
 629 };
 630
 631 /* Device (802.11 core) initialization status. */
 632 enum {
 633         B43legacy_STAT_UNINIT           = 0, /* Uninitialized. */
 634         B43legacy_STAT_INITIALIZED      = 1, /* Initialized, not yet started. */
 635         B43legacy_STAT_STARTED  = 2, /* Up and running. */
 636 };
 637 #define b43legacy_status(wldev) atomic_read(&(wldev)->__init_status)
 638 #define b43legacy_set_status(wldev, stat)       do {            \
 639                 atomic_set(&(wldev)->__init_status, (stat));    \
 640                 smp_wmb();                                      \
 641                                         } while (0)
 642
 643 /* *** ---   HOW LOCKING WORKS IN B43legacy   --- ***
 644  *
 645  * You should always acquire both, wl->mutex and wl->irq_lock unless:
 646  * - You don't need to acquire wl->irq_lock, if the interface is stopped.
 647  * - You don't need to acquire wl->mutex in the IRQ handler, IRQ tasklet
 648  *   and packet TX path (and _ONLY_ there.)
 649  */
 650
 651 /* Data structure for one wireless device (802.11 core) */
 652 struct b43legacy_wldev {
 653         struct ssb_device *dev;
 654         struct b43legacy_wl *wl;
 655
 656         /* The device initialization status.
 657          * Use b43legacy_status() to query. */
 658         atomic_t __init_status;
 659         /* Saved init status for handling suspend. */
 660         int suspend_init_status;
 661
 662         bool __using_pio;       /* Using pio rather than dma. */
 663         bool bad_frames_preempt;/* Use "Bad Frames Preemption". */
 664         bool dfq_valid;         /* Directed frame queue valid (IBSS PS mode, ATIM). */
 665         bool short_preamble;    /* TRUE if using short preamble. */
 666         bool short_slot;        /* TRUE if using short slot timing. */
 667         bool radio_hw_enable;   /* State of radio hardware enable bit. */
 668
 669         /* PHY/Radio device. */
 670         struct b43legacy_phy phy;
 671         union {
 672                 /* DMA engines. */
 673                 struct b43legacy_dma dma;
 674                 /* PIO engines. */
 675                 struct b43legacy_pio pio;
 676         };
 677
 678         /* Various statistics about the physical device. */
 679         struct b43legacy_stats stats;
 680
 681         /* The device LEDs. */
 682         struct b43legacy_led led_tx;
 683         struct b43legacy_led led_rx;
 684         struct b43legacy_led led_assoc;
 685         struct b43legacy_led led_radio;
 686
 687         /* Reason code of the last interrupt. */
 688         u32 irq_reason;
 689         u32 dma_reason[6];
 690         /* saved irq enable/disable state bitfield. */
 691         u32 irq_savedstate;
 692         /* Link Quality calculation context. */
 693         struct b43legacy_noise_calculation noisecalc;
 694         /* if > 0 MAC is suspended. if == 0 MAC is enabled. */
 695         int mac_suspended;
 696
 697         /* Interrupt Service Routine tasklet (bottom-half) */
 698         struct tasklet_struct isr_tasklet;
 699
 700         /* Periodic tasks */
 701         struct delayed_work periodic_work;
 702         unsigned int periodic_state;
 703
 704         struct work_struct restart_work;
 705
 706         /* encryption/decryption */
 707         u16 ktp; /* Key table pointer */
 708         u8 max_nr_keys;
 709         struct b43legacy_key key[58];
 710
 711         /* Firmware data */
 712         struct b43legacy_firmware fw;
 713
 714         /* Devicelist in struct b43legacy_wl (all 802.11 cores) */
 715         struct list_head list;
 716
 717         /* Debugging stuff follows. */
 718 #ifdef CONFIG_B43LEGACY_DEBUG
 719         struct b43legacy_dfsentry *dfsentry;
 720 #endif
 721 };
 722
 723
 724 static inline
 725 struct b43legacy_wl *hw_to_b43legacy_wl(struct ieee80211_hw *hw)
 726 {
 727         return hw->priv;
 728 }
 729
 730 /* Helper function, which returns a boolean.
 731  * TRUE, if PIO is used; FALSE, if DMA is used.
 732  */
 733 #if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
 734 static inline
 735 int b43legacy_using_pio(struct b43legacy_wldev *dev)
 736 {
 737         return dev->__using_pio;
 738 }
 739 #elif defined(CONFIG_B43LEGACY_DMA)
 740 static inline
 741 int b43legacy_using_pio(struct b43legacy_wldev *dev)
 742 {
 743         return 0;
 744 }
 745 #elif defined(CONFIG_B43LEGACY_PIO)
 746 static inline
 747 int b43legacy_using_pio(struct b43legacy_wldev *dev)
 748 {
 749         return 1;
 750 }
 751 #else
 752 # error "Using neither DMA nor PIO? Confused..."
 753 #endif
 754
 755
 756 static inline
 757 struct b43legacy_wldev *dev_to_b43legacy_wldev(struct device *dev)
 758 {
 759         struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
 760         return ssb_get_drvdata(ssb_dev);
 761 }
 762
 763 /* Is the device operating in a specified mode (IEEE80211_IF_TYPE_XXX). */
 764 static inline
 765 int b43legacy_is_mode(struct b43legacy_wl *wl, int type)
 766 {
 767         return (wl->operating &&
 768                 wl->if_type == type);
 769 }
 770
 771 static inline
 772 bool is_bcm_board_vendor(struct b43legacy_wldev *dev)
 773 {
 774         return  (dev->dev->bus->boardinfo.vendor == PCI_VENDOR_ID_BROADCOM);
 775 }
 776
 777 static inline
 778 u16 b43legacy_read16(struct b43legacy_wldev *dev, u16 offset)
 779 {
 780         return ssb_read16(dev->dev, offset);
 781 }
 782
 783 static inline
 784 void b43legacy_write16(struct b43legacy_wldev *dev, u16 offset, u16 value)
 785 {
 786         ssb_write16(dev->dev, offset, value);
 787 }
 788
 789 static inline
 790 u32 b43legacy_read32(struct b43legacy_wldev *dev, u16 offset)
 791 {
 792         return ssb_read32(dev->dev, offset);
 793 }
 794
 795 static inline
 796 void b43legacy_write32(struct b43legacy_wldev *dev, u16 offset, u32 value)
 797 {
 798         ssb_write32(dev->dev, offset, value);
 799 }
 800
 801 static inline
 802 struct b43legacy_lopair *b43legacy_get_lopair(struct b43legacy_phy *phy,
 803                                               u16 radio_attenuation,
 804                                               u16 baseband_attenuation)
 805 {
 806         return phy->_lo_pairs + (radio_attenuation
 807                         + 14 * (baseband_attenuation / 2));
 808 }
 809
 810
 811
 812 /* Message printing */
 813 void b43legacyinfo(struct b43legacy_wl *wl, const char *fmt, ...)
 814                 __attribute__((format(printf, 2, 3)));
 815 void b43legacyerr(struct b43legacy_wl *wl, const char *fmt, ...)
 816                 __attribute__((format(printf, 2, 3)));
 817 void b43legacywarn(struct b43legacy_wl *wl, const char *fmt, ...)
 818                 __attribute__((format(printf, 2, 3)));
 819 #if B43legacy_DEBUG
 820 void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...)
 821                 __attribute__((format(printf, 2, 3)));
 822 #else /* DEBUG */
 823 # define b43legacydbg(wl, fmt...) do { /* nothing */ } while (0)
 824 #endif /* DEBUG */
 825
 826
 827 /** Limit a value between two limits */
 828 #ifdef limit_value
 829 # undef limit_value
 830 #endif
 831 #define limit_value(value, min, max)  \
 832         ({                                              \
 833                 typeof(value) __value = (value);        \
 834                 typeof(value) __min = (min);            \
 835                 typeof(value) __max = (max);            \
 836                 if (__value < __min)                    \
 837                         __value = __min;                \
 838                 else if (__value > __max)               \
 839                         __value = __max;                \
 840                 __value;                                \
 841         })
 842
 843 /* Macros for printing a value in Q5.2 format */
 844 #define Q52_FMT         "%u.%u"
 845 #define Q52_ARG(q52)    ((q52) / 4), (((q52) & 3) * 100 / 4)
 846
 847 #endif /* B43legacy_H_ */