include/linux/ssb/ssb.h

   1 #ifndef LINUX_SSB_H_
   2 #define LINUX_SSB_H_
   3
   4 #include <linux/device.h>
   5 #include <linux/list.h>
   6 #include <linux/types.h>
   7 #include <linux/spinlock.h>
   8 #include <linux/pci.h>
   9 #include <linux/mod_devicetable.h>
  10 #include <linux/dma-mapping.h>
  11 #include <linux/platform_device.h>
  12
  13 #include <linux/ssb/ssb_regs.h>
  14
  15
  16 struct pcmcia_device;
  17 struct ssb_bus;
  18 struct ssb_driver;
  19
  20 struct ssb_sprom_core_pwr_info {
  21         u8 itssi_2g, itssi_5g;
  22         u8 maxpwr_2g, maxpwr_5gl, maxpwr_5g, maxpwr_5gh;
  23         u16 pa_2g[4], pa_5gl[4], pa_5g[4], pa_5gh[4];
  24 };
  25
  26 struct ssb_sprom {
  27         u8 revision;
  28         u8 il0mac[6];           /* MAC address for 802.11b/g */
  29         u8 et0mac[6];           /* MAC address for Ethernet */
  30         u8 et1mac[6];           /* MAC address for 802.11a */
  31         u8 et0phyaddr;          /* MII address for enet0 */
  32         u8 et1phyaddr;          /* MII address for enet1 */
  33         u8 et0mdcport;          /* MDIO for enet0 */
  34         u8 et1mdcport;          /* MDIO for enet1 */
  35         u16 board_rev;          /* Board revision number from SPROM. */
  36         u16 board_num;          /* Board number from SPROM. */
  37         u16 board_type;         /* Board type from SPROM. */
  38         u8 country_code;        /* Country Code */
  39         char alpha2[2];         /* Country Code as two chars like EU or US */
  40         u8 leddc_on_time;       /* LED Powersave Duty Cycle On Count */
  41         u8 leddc_off_time;      /* LED Powersave Duty Cycle Off Count */
  42         u8 ant_available_a;     /* 2GHz antenna available bits (up to 4) */
  43         u8 ant_available_bg;    /* 5GHz antenna available bits (up to 4) */
  44         u16 pa0b0;
  45         u16 pa0b1;
  46         u16 pa0b2;
  47         u16 pa1b0;
  48         u16 pa1b1;
  49         u16 pa1b2;
  50         u16 pa1lob0;
  51         u16 pa1lob1;
  52         u16 pa1lob2;
  53         u16 pa1hib0;
  54         u16 pa1hib1;
  55         u16 pa1hib2;
  56         u8 gpio0;               /* GPIO pin 0 */
  57         u8 gpio1;               /* GPIO pin 1 */
  58         u8 gpio2;               /* GPIO pin 2 */
  59         u8 gpio3;               /* GPIO pin 3 */
  60         u8 maxpwr_bg;           /* 2.4GHz Amplifier Max Power (in dBm Q5.2) */
  61         u8 maxpwr_al;           /* 5.2GHz Amplifier Max Power (in dBm Q5.2) */
  62         u8 maxpwr_a;            /* 5.3GHz Amplifier Max Power (in dBm Q5.2) */
  63         u8 maxpwr_ah;           /* 5.8GHz Amplifier Max Power (in dBm Q5.2) */
  64         u8 itssi_a;             /* Idle TSSI Target for A-PHY */
  65         u8 itssi_bg;            /* Idle TSSI Target for B/G-PHY */
  66         u8 tri2g;               /* 2.4GHz TX isolation */
  67         u8 tri5gl;              /* 5.2GHz TX isolation */
  68         u8 tri5g;               /* 5.3GHz TX isolation */
  69         u8 tri5gh;              /* 5.8GHz TX isolation */
  70         u8 txpid2g[4];          /* 2GHz TX power index */
  71         u8 txpid5gl[4];         /* 4.9 - 5.1GHz TX power index */
  72         u8 txpid5g[4];          /* 5.1 - 5.5GHz TX power index */
  73         u8 txpid5gh[4];         /* 5.5 - ...GHz TX power index */
  74         s8 rxpo2g;              /* 2GHz RX power offset */
  75         s8 rxpo5g;              /* 5GHz RX power offset */
  76         u8 rssisav2g;           /* 2GHz RSSI params */
  77         u8 rssismc2g;
  78         u8 rssismf2g;
  79         u8 bxa2g;               /* 2GHz BX arch */
  80         u8 rssisav5g;           /* 5GHz RSSI params */
  81         u8 rssismc5g;
  82         u8 rssismf5g;
  83         u8 bxa5g;               /* 5GHz BX arch */
  84         u16 cck2gpo;            /* CCK power offset */
  85         u32 ofdm2gpo;           /* 2.4GHz OFDM power offset */
  86         u32 ofdm5glpo;          /* 5.2GHz OFDM power offset */
  87         u32 ofdm5gpo;           /* 5.3GHz OFDM power offset */
  88         u32 ofdm5ghpo;          /* 5.8GHz OFDM power offset */
  89         u16 boardflags_lo;      /* Board flags (bits 0-15) */
  90         u16 boardflags_hi;      /* Board flags (bits 16-31) */
  91         u16 boardflags2_lo;     /* Board flags (bits 32-47) */
  92         u16 boardflags2_hi;     /* Board flags (bits 48-63) */
  93         /* TODO store board flags in a single u64 */
  94
  95         struct ssb_sprom_core_pwr_info core_pwr_info[4];
  96
  97         /* Antenna gain values for up to 4 antennas
  98          * on each band. Values in dBm/4 (Q5.2). Negative gain means the
  99          * loss in the connectors is bigger than the gain. */
 100         struct {
 101                 s8 a0, a1, a2, a3;
 102         } antenna_gain;
 103
 104         struct {
 105                 struct {
 106                         u8 tssipos, extpa_gain, pdet_range, tr_iso, antswlut;
 107                 } ghz2;
 108                 struct {
 109                         u8 tssipos, extpa_gain, pdet_range, tr_iso, antswlut;
 110                 } ghz5;
 111         } fem;
 112
 113         u16 mcs2gpo[8];
 114         u16 mcs5gpo[8];
 115         u16 mcs5glpo[8];
 116         u16 mcs5ghpo[8];
 117         u8 opo;
 118
 119         u8 rxgainerr2ga[3];
 120         u8 rxgainerr5gla[3];
 121         u8 rxgainerr5gma[3];
 122         u8 rxgainerr5gha[3];
 123         u8 rxgainerr5gua[3];
 124
 125         u8 noiselvl2ga[3];
 126         u8 noiselvl5gla[3];
 127         u8 noiselvl5gma[3];
 128         u8 noiselvl5gha[3];
 129         u8 noiselvl5gua[3];
 130
 131         u8 regrev;
 132         u8 txchain;
 133         u8 rxchain;
 134         u8 antswitch;
 135         u16 cddpo;
 136         u16 stbcpo;
 137         u16 bw40po;
 138         u16 bwduppo;
 139
 140         u8 tempthresh;
 141         u8 tempoffset;
 142         u16 rawtempsense;
 143         u8 measpower;
 144         u8 tempsense_slope;
 145         u8 tempcorrx;
 146         u8 tempsense_option;
 147         u8 freqoffset_corr;
 148         u8 iqcal_swp_dis;
 149         u8 hw_iqcal_en;
 150         u8 elna2g;
 151         u8 elna5g;
 152         u8 phycal_tempdelta;
 153         u8 temps_period;
 154         u8 temps_hysteresis;
 155         u8 measpower1;
 156         u8 measpower2;
 157         u8 pcieingress_war;
 158
 159         /* power per rate from sromrev 9 */
 160         u16 cckbw202gpo;
 161         u16 cckbw20ul2gpo;
 162         u32 legofdmbw202gpo;
 163         u32 legofdmbw20ul2gpo;
 164         u32 legofdmbw205glpo;
 165         u32 legofdmbw20ul5glpo;
 166         u32 legofdmbw205gmpo;
 167         u32 legofdmbw20ul5gmpo;
 168         u32 legofdmbw205ghpo;
 169         u32 legofdmbw20ul5ghpo;
 170         u32 mcsbw202gpo;
 171         u32 mcsbw20ul2gpo;
 172         u32 mcsbw402gpo;
 173         u32 mcsbw205glpo;
 174         u32 mcsbw20ul5glpo;
 175         u32 mcsbw405glpo;
 176         u32 mcsbw205gmpo;
 177         u32 mcsbw20ul5gmpo;
 178         u32 mcsbw405gmpo;
 179         u32 mcsbw205ghpo;
 180         u32 mcsbw20ul5ghpo;
 181         u32 mcsbw405ghpo;
 182         u16 mcs32po;
 183         u16 legofdm40duppo;
 184         u8 sar2g;
 185         u8 sar5g;
 186 };
 187
 188 /* Information about the PCB the circuitry is soldered on. */
 189 struct ssb_boardinfo {
 190         u16 vendor;
 191         u16 type;
 192 };
 193
 194
 195 struct ssb_device;
 196 /* Lowlevel read/write operations on the device MMIO.
 197  * Internal, don't use that outside of ssb. */
 198 struct ssb_bus_ops {
 199         u8 (*read8)(struct ssb_device *dev, u16 offset);
 200         u16 (*read16)(struct ssb_device *dev, u16 offset);
 201         u32 (*read32)(struct ssb_device *dev, u16 offset);
 202         void (*write8)(struct ssb_device *dev, u16 offset, u8 value);
 203         void (*write16)(struct ssb_device *dev, u16 offset, u16 value);
 204         void (*write32)(struct ssb_device *dev, u16 offset, u32 value);
 205 #ifdef CONFIG_SSB_BLOCKIO
 206         void (*block_read)(struct ssb_device *dev, void *buffer,
 207                            size_t count, u16 offset, u8 reg_width);
 208         void (*block_write)(struct ssb_device *dev, const void *buffer,
 209                             size_t count, u16 offset, u8 reg_width);
 210 #endif
 211 };
 212
 213
 214 /* Core-ID values. */
 215 #define SSB_DEV_CHIPCOMMON      0x800
 216 #define SSB_DEV_ILINE20         0x801
 217 #define SSB_DEV_SDRAM           0x803
 218 #define SSB_DEV_PCI             0x804
 219 #define SSB_DEV_MIPS            0x805
 220 #define SSB_DEV_ETHERNET        0x806
 221 #define SSB_DEV_V90             0x807
 222 #define SSB_DEV_USB11_HOSTDEV   0x808
 223 #define SSB_DEV_ADSL            0x809
 224 #define SSB_DEV_ILINE100        0x80A
 225 #define SSB_DEV_IPSEC           0x80B
 226 #define SSB_DEV_PCMCIA          0x80D
 227 #define SSB_DEV_INTERNAL_MEM    0x80E
 228 #define SSB_DEV_MEMC_SDRAM      0x80F
 229 #define SSB_DEV_EXTIF           0x811
 230 #define SSB_DEV_80211           0x812
 231 #define SSB_DEV_MIPS_3302       0x816
 232 #define SSB_DEV_USB11_HOST      0x817
 233 #define SSB_DEV_USB11_DEV       0x818
 234 #define SSB_DEV_USB20_HOST      0x819
 235 #define SSB_DEV_USB20_DEV       0x81A
 236 #define SSB_DEV_SDIO_HOST       0x81B
 237 #define SSB_DEV_ROBOSWITCH      0x81C
 238 #define SSB_DEV_PARA_ATA        0x81D
 239 #define SSB_DEV_SATA_XORDMA     0x81E
 240 #define SSB_DEV_ETHERNET_GBIT   0x81F
 241 #define SSB_DEV_PCIE            0x820
 242 #define SSB_DEV_MIMO_PHY        0x821
 243 #define SSB_DEV_SRAM_CTRLR      0x822
 244 #define SSB_DEV_MINI_MACPHY     0x823
 245 #define SSB_DEV_ARM_1176        0x824
 246 #define SSB_DEV_ARM_7TDMI       0x825
 247 #define SSB_DEV_ARM_CM3         0x82A
 248
 249 /* Vendor-ID values */
 250 #define SSB_VENDOR_BROADCOM     0x4243
 251
 252 /* Some kernel subsystems poke with dev->drvdata, so we must use the
 253  * following ugly workaround to get from struct device to struct ssb_device */
 254 struct __ssb_dev_wrapper {
 255         struct device dev;
 256         struct ssb_device *sdev;
 257 };
 258
 259 struct ssb_device {
 260         /* Having a copy of the ops pointer in each dev struct
 261          * is an optimization. */
 262         const struct ssb_bus_ops *ops;
 263
 264         struct device *dev, *dma_dev;
 265
 266         struct ssb_bus *bus;
 267         struct ssb_device_id id;
 268
 269         u8 core_index;
 270         unsigned int irq;
 271
 272         /* Internal-only stuff follows. */
 273         void *drvdata;          /* Per-device data */
 274         void *devtypedata;      /* Per-devicetype (eg 802.11) data */
 275 };
 276
 277 /* Go from struct device to struct ssb_device. */
 278 static inline
 279 struct ssb_device * dev_to_ssb_dev(struct device *dev)
 280 {
 281         struct __ssb_dev_wrapper *wrap;
 282         wrap = container_of(dev, struct __ssb_dev_wrapper, dev);
 283         return wrap->sdev;
 284 }
 285
 286 /* Device specific user data */
 287 static inline
 288 void ssb_set_drvdata(struct ssb_device *dev, void *data)
 289 {
 290         dev->drvdata = data;
 291 }
 292 static inline
 293 void * ssb_get_drvdata(struct ssb_device *dev)
 294 {
 295         return dev->drvdata;
 296 }
 297
 298 /* Devicetype specific user data. This is per device-type (not per device) */
 299 void ssb_set_devtypedata(struct ssb_device *dev, void *data);
 300 static inline
 301 void * ssb_get_devtypedata(struct ssb_device *dev)
 302 {
 303         return dev->devtypedata;
 304 }
 305
 306
 307 struct ssb_driver {
 308         const char *name;
 309         const struct ssb_device_id *id_table;
 310
 311         int (*probe)(struct ssb_device *dev, const struct ssb_device_id *id);
 312         void (*remove)(struct ssb_device *dev);
 313         int (*suspend)(struct ssb_device *dev, pm_message_t state);
 314         int (*resume)(struct ssb_device *dev);
 315         void (*shutdown)(struct ssb_device *dev);
 316
 317         struct device_driver drv;
 318 };
 319 #define drv_to_ssb_drv(_drv) container_of(_drv, struct ssb_driver, drv)
 320
 321 extern int __ssb_driver_register(struct ssb_driver *drv, struct module *owner);
 322 #define ssb_driver_register(drv) \
 323         __ssb_driver_register(drv, THIS_MODULE)
 324
 325 extern void ssb_driver_unregister(struct ssb_driver *drv);
 326
 327
 328
 329
 330 enum ssb_bustype {
 331         SSB_BUSTYPE_SSB,        /* This SSB bus is the system bus */
 332         SSB_BUSTYPE_PCI,        /* SSB is connected to PCI bus */
 333         SSB_BUSTYPE_PCMCIA,     /* SSB is connected to PCMCIA bus */
 334         SSB_BUSTYPE_SDIO,       /* SSB is connected to SDIO bus */
 335 };
 336
 337 /* board_vendor */
 338 #define SSB_BOARDVENDOR_BCM     0x14E4  /* Broadcom */
 339 #define SSB_BOARDVENDOR_DELL    0x1028  /* Dell */
 340 #define SSB_BOARDVENDOR_HP      0x0E11  /* HP */
 341 /* board_type */
 342 #define SSB_BOARD_BCM94306MP    0x0418
 343 #define SSB_BOARD_BCM4309G      0x0421
 344 #define SSB_BOARD_BCM4306CB     0x0417
 345 #define SSB_BOARD_BCM4309MP     0x040C
 346 #define SSB_BOARD_MP4318        0x044A
 347 #define SSB_BOARD_BU4306        0x0416
 348 #define SSB_BOARD_BU4309        0x040A
 349 /* chip_package */
 350 #define SSB_CHIPPACK_BCM4712S   1       /* Small 200pin 4712 */
 351 #define SSB_CHIPPACK_BCM4712M   2       /* Medium 225pin 4712 */
 352 #define SSB_CHIPPACK_BCM4712L   0       /* Large 340pin 4712 */
 353
 354 #include <linux/ssb/ssb_driver_chipcommon.h>
 355 #include <linux/ssb/ssb_driver_mips.h>
 356 #include <linux/ssb/ssb_driver_extif.h>
 357 #include <linux/ssb/ssb_driver_pci.h>
 358
 359 struct ssb_bus {
 360         /* The MMIO area. */
 361         void __iomem *mmio;
 362
 363         const struct ssb_bus_ops *ops;
 364
 365         /* The core currently mapped into the MMIO window.
 366          * Not valid on all host-buses. So don't use outside of SSB. */
 367         struct ssb_device *mapped_device;
 368         union {
 369                 /* Currently mapped PCMCIA segment. (bustype == SSB_BUSTYPE_PCMCIA only) */
 370                 u8 mapped_pcmcia_seg;
 371                 /* Current SSB base address window for SDIO. */
 372                 u32 sdio_sbaddr;
 373         };
 374         /* Lock for core and segment switching.
 375          * On PCMCIA-host busses this is used to protect the whole MMIO access. */
 376         spinlock_t bar_lock;
 377
 378         /* The host-bus this backplane is running on. */
 379         enum ssb_bustype bustype;
 380         /* Pointers to the host-bus. Check bustype before using any of these pointers. */
 381         union {
 382                 /* Pointer to the PCI bus (only valid if bustype == SSB_BUSTYPE_PCI). */
 383                 struct pci_dev *host_pci;
 384                 /* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */
 385                 struct pcmcia_device *host_pcmcia;
 386                 /* Pointer to the SDIO device (only if bustype == SSB_BUSTYPE_SDIO). */
 387                 struct sdio_func *host_sdio;
 388         };
 389
 390         /* See enum ssb_quirks */
 391         unsigned int quirks;
 392
 393 #ifdef CONFIG_SSB_SPROM
 394         /* Mutex to protect the SPROM writing. */
 395         struct mutex sprom_mutex;
 396 #endif
 397
 398         /* ID information about the Chip. */
 399         u16 chip_id;
 400         u8 chip_rev;
 401         u16 sprom_offset;
 402         u16 sprom_size;         /* number of words in sprom */
 403         u8 chip_package;
 404
 405         /* List of devices (cores) on the backplane. */
 406         struct ssb_device devices[SSB_MAX_NR_CORES];
 407         u8 nr_devices;
 408
 409         /* Software ID number for this bus. */
 410         unsigned int busnumber;
 411
 412         /* The ChipCommon device (if available). */
 413         struct ssb_chipcommon chipco;
 414         /* The PCI-core device (if available). */
 415         struct ssb_pcicore pcicore;
 416         /* The MIPS-core device (if available). */
 417         struct ssb_mipscore mipscore;
 418         /* The EXTif-core device (if available). */
 419         struct ssb_extif extif;
 420
 421         /* The following structure elements are not available in early
 422          * SSB initialization. Though, they are available for regular
 423          * registered drivers at any stage. So be careful when
 424          * using them in the ssb core code. */
 425
 426         /* ID information about the PCB. */
 427         struct ssb_boardinfo boardinfo;
 428         /* Contents of the SPROM. */
 429         struct ssb_sprom sprom;
 430         /* If the board has a cardbus slot, this is set to true. */
 431         bool has_cardbus_slot;
 432
 433 #ifdef CONFIG_SSB_EMBEDDED
 434         /* Lock for GPIO register access. */
 435         spinlock_t gpio_lock;
 436         struct platform_device *watchdog;
 437 #endif /* EMBEDDED */
 438
 439         /* Internal-only stuff follows. Do not touch. */
 440         struct list_head list;
 441 #ifdef CONFIG_SSB_DEBUG
 442         /* Is the bus already powered up? */
 443         bool powered_up;
 444         int power_warn_count;
 445 #endif /* DEBUG */
 446 };
 447
 448 enum ssb_quirks {
 449         /* SDIO connected card requires performing a read after writing a 32-bit value */
 450         SSB_QUIRK_SDIO_READ_AFTER_WRITE32       = (1 << 0),
 451 };
 452
 453 /* The initialization-invariants. */
 454 struct ssb_init_invariants {
 455         /* Versioning information about the PCB. */
 456         struct ssb_boardinfo boardinfo;
 457         /* The SPROM information. That's either stored in an
 458          * EEPROM or NVRAM on the board. */
 459         struct ssb_sprom sprom;
 460         /* If the board has a cardbus slot, this is set to true. */
 461         bool has_cardbus_slot;
 462 };
 463 /* Type of function to fetch the invariants. */
 464 typedef int (*ssb_invariants_func_t)(struct ssb_bus *bus,
 465                                      struct ssb_init_invariants *iv);
 466
 467 /* Register a SSB system bus. get_invariants() is called after the
 468  * basic system devices are initialized.
 469  * The invariants are usually fetched from some NVRAM.
 470  * Put the invariants into the struct pointed to by iv. */
 471 extern int ssb_bus_ssbbus_register(struct ssb_bus *bus,
 472                                    unsigned long baseaddr,
 473                                    ssb_invariants_func_t get_invariants);
 474 #ifdef CONFIG_SSB_PCIHOST
 475 extern int ssb_bus_pcibus_register(struct ssb_bus *bus,
 476                                    struct pci_dev *host_pci);
 477 #endif /* CONFIG_SSB_PCIHOST */
 478 #ifdef CONFIG_SSB_PCMCIAHOST
 479 extern int ssb_bus_pcmciabus_register(struct ssb_bus *bus,
 480                                       struct pcmcia_device *pcmcia_dev,
 481                                       unsigned long baseaddr);
 482 #endif /* CONFIG_SSB_PCMCIAHOST */
 483 #ifdef CONFIG_SSB_SDIOHOST
 484 extern int ssb_bus_sdiobus_register(struct ssb_bus *bus,
 485                                     struct sdio_func *sdio_func,
 486                                     unsigned int quirks);
 487 #endif /* CONFIG_SSB_SDIOHOST */
 488
 489
 490 extern void ssb_bus_unregister(struct ssb_bus *bus);
 491
 492 /* Does the device have an SPROM? */
 493 extern bool ssb_is_sprom_available(struct ssb_bus *bus);
 494
 495 /* Set a fallback SPROM.
 496  * See kdoc at the function definition for complete documentation. */
 497 extern int ssb_arch_register_fallback_sprom(
 498                 int (*sprom_callback)(struct ssb_bus *bus,
 499                 struct ssb_sprom *out));
 500
 501 /* Suspend a SSB bus.
 502  * Call this from the parent bus suspend routine. */
 503 extern int ssb_bus_suspend(struct ssb_bus *bus);
 504 /* Resume a SSB bus.
 505  * Call this from the parent bus resume routine. */
 506 extern int ssb_bus_resume(struct ssb_bus *bus);
 507
 508 extern u32 ssb_clockspeed(struct ssb_bus *bus);
 509
 510 /* Is the device enabled in hardware? */
 511 int ssb_device_is_enabled(struct ssb_device *dev);
 512 /* Enable a device and pass device-specific SSB_TMSLOW flags.
 513  * If no device-specific flags are available, use 0. */
 514 void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags);
 515 /* Disable a device in hardware and pass SSB_TMSLOW flags (if any). */
 516 void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags);
 517
 518
 519 /* Device MMIO register read/write functions. */
 520 static inline u8 ssb_read8(struct ssb_device *dev, u16 offset)
 521 {
 522         return dev->ops->read8(dev, offset);
 523 }
 524 static inline u16 ssb_read16(struct ssb_device *dev, u16 offset)
 525 {
 526         return dev->ops->read16(dev, offset);
 527 }
 528 static inline u32 ssb_read32(struct ssb_device *dev, u16 offset)
 529 {
 530         return dev->ops->read32(dev, offset);
 531 }
 532 static inline void ssb_write8(struct ssb_device *dev, u16 offset, u8 value)
 533 {
 534         dev->ops->write8(dev, offset, value);
 535 }
 536 static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
 537 {
 538         dev->ops->write16(dev, offset, value);
 539 }
 540 static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
 541 {
 542         dev->ops->write32(dev, offset, value);
 543 }
 544 #ifdef CONFIG_SSB_BLOCKIO
 545 static inline void ssb_block_read(struct ssb_device *dev, void *buffer,
 546                                   size_t count, u16 offset, u8 reg_width)
 547 {
 548         dev->ops->block_read(dev, buffer, count, offset, reg_width);
 549 }
 550
 551 static inline void ssb_block_write(struct ssb_device *dev, const void *buffer,
 552                                    size_t count, u16 offset, u8 reg_width)
 553 {
 554         dev->ops->block_write(dev, buffer, count, offset, reg_width);
 555 }
 556 #endif /* CONFIG_SSB_BLOCKIO */
 557
 558
 559 /* The SSB DMA API. Use this API for any DMA operation on the device.
 560  * This API basically is a wrapper that calls the correct DMA API for
 561  * the host device type the SSB device is attached to. */
 562
 563 /* Translation (routing) bits that need to be ORed to DMA
 564  * addresses before they are given to a device. */
 565 extern u32 ssb_dma_translation(struct ssb_device *dev);
 566 #define SSB_DMA_TRANSLATION_MASK        0xC0000000
 567 #define SSB_DMA_TRANSLATION_SHIFT       30
 568
 569 static inline void __cold __ssb_dma_not_implemented(struct ssb_device *dev)
 570 {
 571 #ifdef CONFIG_SSB_DEBUG
 572         printk(KERN_ERR "SSB: BUG! Calling DMA API for "
 573                "unsupported bustype %d\n", dev->bus->bustype);
 574 #endif /* DEBUG */
 575 }
 576
 577 #ifdef CONFIG_SSB_PCIHOST
 578 /* PCI-host wrapper driver */
 579 extern int ssb_pcihost_register(struct pci_driver *driver);
 580 static inline void ssb_pcihost_unregister(struct pci_driver *driver)
 581 {
 582         pci_unregister_driver(driver);
 583 }
 584
 585 static inline
 586 void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
 587 {
 588         if (sdev->bus->bustype == SSB_BUSTYPE_PCI)
 589                 pci_set_power_state(sdev->bus->host_pci, state);
 590 }
 591 #else
 592 static inline void ssb_pcihost_unregister(struct pci_driver *driver)
 593 {
 594 }
 595
 596 static inline
 597 void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
 598 {
 599 }
 600 #endif /* CONFIG_SSB_PCIHOST */
 601
 602
 603 /* If a driver is shutdown or suspended, call this to signal
 604  * that the bus may be completely powered down. SSB will decide,
 605  * if it's really time to power down the bus, based on if there
 606  * are other devices that want to run. */
 607 extern int ssb_bus_may_powerdown(struct ssb_bus *bus);
 608 /* Before initializing and enabling a device, call this to power-up the bus.
 609  * If you want to allow use of dynamic-power-control, pass the flag.
 610  * Otherwise static always-on powercontrol will be used. */
 611 extern int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl);
 612
 613 extern void ssb_commit_settings(struct ssb_bus *bus);
 614
 615 /* Various helper functions */
 616 extern u32 ssb_admatch_base(u32 adm);
 617 extern u32 ssb_admatch_size(u32 adm);
 618
 619 /* PCI device mapping and fixup routines.
 620  * Called from the architecture pcibios init code.
 621  * These are only available on SSB_EMBEDDED configurations. */
 622 #ifdef CONFIG_SSB_EMBEDDED
 623 int ssb_pcibios_plat_dev_init(struct pci_dev *dev);
 624 int ssb_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
 625 #endif /* CONFIG_SSB_EMBEDDED */
 626
 627 #endif /* LINUX_SSB_H_ */