include/linux/ssb/ssb.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef LINUX_SSB_H_
   3 #define LINUX_SSB_H_
   4
   5 #include <linux/device.h>
   6 #include <linux/list.h>
   7 #include <linux/types.h>
   8 #include <linux/spinlock.h>
   9 #include <linux/pci.h>
  10 #include <linux/gpio.h>
  11 #include <linux/mod_devicetable.h>
  12 #include <linux/dma-mapping.h>
  13 #include <linux/platform_device.h>
  14
  15 #include <linux/ssb/ssb_regs.h>
  16
  17
  18 struct pcmcia_device;
  19 struct ssb_bus;
  20 struct ssb_driver;
  21
  22 struct ssb_sprom_core_pwr_info {
  23         u8 itssi_2g, itssi_5g;
  24         u8 maxpwr_2g, maxpwr_5gl, maxpwr_5g, maxpwr_5gh;
  25         u16 pa_2g[4], pa_5gl[4], pa_5g[4], pa_5gh[4];
  26 };
  27
  28 struct ssb_sprom {
  29         u8 revision;
  30         u8 il0mac[6] __aligned(sizeof(u16));    /* MAC address for 802.11b/g */
  31         u8 et0mac[6] __aligned(sizeof(u16));    /* MAC address for Ethernet */
  32         u8 et1mac[6] __aligned(sizeof(u16));    /* MAC address for 802.11a */
  33         u8 et2mac[6] __aligned(sizeof(u16));    /* MAC address for extra Ethernet */
  34         u8 et0phyaddr;          /* MII address for enet0 */
  35         u8 et1phyaddr;          /* MII address for enet1 */
  36         u8 et2phyaddr;          /* MII address for enet2 */
  37         u8 et0mdcport;          /* MDIO for enet0 */
  38         u8 et1mdcport;          /* MDIO for enet1 */
  39         u8 et2mdcport;          /* MDIO for enet2 */
  40         u16 dev_id;             /* Device ID overriding e.g. PCI ID */
  41         u16 board_rev;          /* Board revision number from SPROM. */
  42         u16 board_num;          /* Board number from SPROM. */
  43         u16 board_type;         /* Board type from SPROM. */
  44         u8 country_code;        /* Country Code */
  45         char alpha2[2];         /* Country Code as two chars like EU or US */
  46         u8 leddc_on_time;       /* LED Powersave Duty Cycle On Count */
  47         u8 leddc_off_time;      /* LED Powersave Duty Cycle Off Count */
  48         u8 ant_available_a;     /* 2GHz antenna available bits (up to 4) */
  49         u8 ant_available_bg;    /* 5GHz antenna available bits (up to 4) */
  50         u16 pa0b0;
  51         u16 pa0b1;
  52         u16 pa0b2;
  53         u16 pa1b0;
  54         u16 pa1b1;
  55         u16 pa1b2;
  56         u16 pa1lob0;
  57         u16 pa1lob1;
  58         u16 pa1lob2;
  59         u16 pa1hib0;
  60         u16 pa1hib1;
  61         u16 pa1hib2;
  62         u8 gpio0;               /* GPIO pin 0 */
  63         u8 gpio1;               /* GPIO pin 1 */
  64         u8 gpio2;               /* GPIO pin 2 */
  65         u8 gpio3;               /* GPIO pin 3 */
  66         u8 maxpwr_bg;           /* 2.4GHz Amplifier Max Power (in dBm Q5.2) */
  67         u8 maxpwr_al;           /* 5.2GHz Amplifier Max Power (in dBm Q5.2) */
  68         u8 maxpwr_a;            /* 5.3GHz Amplifier Max Power (in dBm Q5.2) */
  69         u8 maxpwr_ah;           /* 5.8GHz Amplifier Max Power (in dBm Q5.2) */
  70         u8 itssi_a;             /* Idle TSSI Target for A-PHY */
  71         u8 itssi_bg;            /* Idle TSSI Target for B/G-PHY */
  72         u8 tri2g;               /* 2.4GHz TX isolation */
  73         u8 tri5gl;              /* 5.2GHz TX isolation */
  74         u8 tri5g;               /* 5.3GHz TX isolation */
  75         u8 tri5gh;              /* 5.8GHz TX isolation */
  76         u8 txpid2g[4];          /* 2GHz TX power index */
  77         u8 txpid5gl[4];         /* 4.9 - 5.1GHz TX power index */
  78         u8 txpid5g[4];          /* 5.1 - 5.5GHz TX power index */
  79         u8 txpid5gh[4];         /* 5.5 - ...GHz TX power index */
  80         s8 rxpo2g;              /* 2GHz RX power offset */
  81         s8 rxpo5g;              /* 5GHz RX power offset */
  82         u8 rssisav2g;           /* 2GHz RSSI params */
  83         u8 rssismc2g;
  84         u8 rssismf2g;
  85         u8 bxa2g;               /* 2GHz BX arch */
  86         u8 rssisav5g;           /* 5GHz RSSI params */
  87         u8 rssismc5g;
  88         u8 rssismf5g;
  89         u8 bxa5g;               /* 5GHz BX arch */
  90         u16 cck2gpo;            /* CCK power offset */
  91         u32 ofdm2gpo;           /* 2.4GHz OFDM power offset */
  92         u32 ofdm5glpo;          /* 5.2GHz OFDM power offset */
  93         u32 ofdm5gpo;           /* 5.3GHz OFDM power offset */
  94         u32 ofdm5ghpo;          /* 5.8GHz OFDM power offset */
  95         u32 boardflags;
  96         u32 boardflags2;
  97         u32 boardflags3;
  98         /* TODO: Switch all drivers to new u32 fields and drop below ones */
  99         u16 boardflags_lo;      /* Board flags (bits 0-15) */
 100         u16 boardflags_hi;      /* Board flags (bits 16-31) */
 101         u16 boardflags2_lo;     /* Board flags (bits 32-47) */
 102         u16 boardflags2_hi;     /* Board flags (bits 48-63) */
 103
 104         struct ssb_sprom_core_pwr_info core_pwr_info[4];
 105
 106         /* Antenna gain values for up to 4 antennas
 107          * on each band. Values in dBm/4 (Q5.2). Negative gain means the
 108          * loss in the connectors is bigger than the gain. */
 109         struct {
 110                 s8 a0, a1, a2, a3;
 111         } antenna_gain;
 112
 113         struct {
 114                 struct {
 115                         u8 tssipos, extpa_gain, pdet_range, tr_iso, antswlut;
 116                 } ghz2;
 117                 struct {
 118                         u8 tssipos, extpa_gain, pdet_range, tr_iso, antswlut;
 119                 } ghz5;
 120         } fem;
 121
 122         u16 mcs2gpo[8];
 123         u16 mcs5gpo[8];
 124         u16 mcs5glpo[8];
 125         u16 mcs5ghpo[8];
 126         u8 opo;
 127
 128         u8 rxgainerr2ga[3];
 129         u8 rxgainerr5gla[3];
 130         u8 rxgainerr5gma[3];
 131         u8 rxgainerr5gha[3];
 132         u8 rxgainerr5gua[3];
 133
 134         u8 noiselvl2ga[3];
 135         u8 noiselvl5gla[3];
 136         u8 noiselvl5gma[3];
 137         u8 noiselvl5gha[3];
 138         u8 noiselvl5gua[3];
 139
 140         u8 regrev;
 141         u8 txchain;
 142         u8 rxchain;
 143         u8 antswitch;
 144         u16 cddpo;
 145         u16 stbcpo;
 146         u16 bw40po;
 147         u16 bwduppo;
 148
 149         u8 tempthresh;
 150         u8 tempoffset;
 151         u16 rawtempsense;
 152         u8 measpower;
 153         u8 tempsense_slope;
 154         u8 tempcorrx;
 155         u8 tempsense_option;
 156         u8 freqoffset_corr;
 157         u8 iqcal_swp_dis;
 158         u8 hw_iqcal_en;
 159         u8 elna2g;
 160         u8 elna5g;
 161         u8 phycal_tempdelta;
 162         u8 temps_period;
 163         u8 temps_hysteresis;
 164         u8 measpower1;
 165         u8 measpower2;
 166         u8 pcieingress_war;
 167
 168         /* power per rate from sromrev 9 */
 169         u16 cckbw202gpo;
 170         u16 cckbw20ul2gpo;
 171         u32 legofdmbw202gpo;
 172         u32 legofdmbw20ul2gpo;
 173         u32 legofdmbw205glpo;
 174         u32 legofdmbw20ul5glpo;
 175         u32 legofdmbw205gmpo;
 176         u32 legofdmbw20ul5gmpo;
 177         u32 legofdmbw205ghpo;
 178         u32 legofdmbw20ul5ghpo;
 179         u32 mcsbw202gpo;
 180         u32 mcsbw20ul2gpo;
 181         u32 mcsbw402gpo;
 182         u32 mcsbw205glpo;
 183         u32 mcsbw20ul5glpo;
 184         u32 mcsbw405glpo;
 185         u32 mcsbw205gmpo;
 186         u32 mcsbw20ul5gmpo;
 187         u32 mcsbw405gmpo;
 188         u32 mcsbw205ghpo;
 189         u32 mcsbw20ul5ghpo;
 190         u32 mcsbw405ghpo;
 191         u16 mcs32po;
 192         u16 legofdm40duppo;
 193         u8 sar2g;
 194         u8 sar5g;
 195 };
 196
 197 /* Information about the PCB the circuitry is soldered on. */
 198 struct ssb_boardinfo {
 199         u16 vendor;
 200         u16 type;
 201 };
 202
 203
 204 struct ssb_device;
 205 /* Lowlevel read/write operations on the device MMIO.
 206  * Internal, don't use that outside of ssb. */
 207 struct ssb_bus_ops {
 208         u8 (*read8)(struct ssb_device *dev, u16 offset);
 209         u16 (*read16)(struct ssb_device *dev, u16 offset);
 210         u32 (*read32)(struct ssb_device *dev, u16 offset);
 211         void (*write8)(struct ssb_device *dev, u16 offset, u8 value);
 212         void (*write16)(struct ssb_device *dev, u16 offset, u16 value);
 213         void (*write32)(struct ssb_device *dev, u16 offset, u32 value);
 214 #ifdef CONFIG_SSB_BLOCKIO
 215         void (*block_read)(struct ssb_device *dev, void *buffer,
 216                            size_t count, u16 offset, u8 reg_width);
 217         void (*block_write)(struct ssb_device *dev, const void *buffer,
 218                             size_t count, u16 offset, u8 reg_width);
 219 #endif
 220 };
 221
 222
 223 /* Core-ID values. */
 224 #define SSB_DEV_CHIPCOMMON      0x800
 225 #define SSB_DEV_ILINE20         0x801
 226 #define SSB_DEV_SDRAM           0x803
 227 #define SSB_DEV_PCI             0x804
 228 #define SSB_DEV_MIPS            0x805
 229 #define SSB_DEV_ETHERNET        0x806
 230 #define SSB_DEV_V90             0x807
 231 #define SSB_DEV_USB11_HOSTDEV   0x808
 232 #define SSB_DEV_ADSL            0x809
 233 #define SSB_DEV_ILINE100        0x80A
 234 #define SSB_DEV_IPSEC           0x80B
 235 #define SSB_DEV_PCMCIA          0x80D
 236 #define SSB_DEV_INTERNAL_MEM    0x80E
 237 #define SSB_DEV_MEMC_SDRAM      0x80F
 238 #define SSB_DEV_EXTIF           0x811
 239 #define SSB_DEV_80211           0x812
 240 #define SSB_DEV_MIPS_3302       0x816
 241 #define SSB_DEV_USB11_HOST      0x817
 242 #define SSB_DEV_USB11_DEV       0x818
 243 #define SSB_DEV_USB20_HOST      0x819
 244 #define SSB_DEV_USB20_DEV       0x81A
 245 #define SSB_DEV_SDIO_HOST       0x81B
 246 #define SSB_DEV_ROBOSWITCH      0x81C
 247 #define SSB_DEV_PARA_ATA        0x81D
 248 #define SSB_DEV_SATA_XORDMA     0x81E
 249 #define SSB_DEV_ETHERNET_GBIT   0x81F
 250 #define SSB_DEV_PCIE            0x820
 251 #define SSB_DEV_MIMO_PHY        0x821
 252 #define SSB_DEV_SRAM_CTRLR      0x822
 253 #define SSB_DEV_MINI_MACPHY     0x823
 254 #define SSB_DEV_ARM_1176        0x824
 255 #define SSB_DEV_ARM_7TDMI       0x825
 256 #define SSB_DEV_ARM_CM3         0x82A
 257
 258 /* Vendor-ID values */
 259 #define SSB_VENDOR_BROADCOM     0x4243
 260
 261 /* Some kernel subsystems poke with dev->drvdata, so we must use the
 262  * following ugly workaround to get from struct device to struct ssb_device */
 263 struct __ssb_dev_wrapper {
 264         struct device dev;
 265         struct ssb_device *sdev;
 266 };
 267
 268 struct ssb_device {
 269         /* Having a copy of the ops pointer in each dev struct
 270          * is an optimization. */
 271         const struct ssb_bus_ops *ops;
 272
 273         struct device *dev, *dma_dev;
 274
 275         struct ssb_bus *bus;
 276         struct ssb_device_id id;
 277
 278         u8 core_index;
 279         unsigned int irq;
 280
 281         /* Internal-only stuff follows. */
 282         void *drvdata;          /* Per-device data */
 283         void *devtypedata;      /* Per-devicetype (eg 802.11) data */
 284 };
 285
 286 /* Go from struct device to struct ssb_device. */
 287 static inline
 288 struct ssb_device * dev_to_ssb_dev(struct device *dev)
 289 {
 290         struct __ssb_dev_wrapper *wrap;
 291         wrap = container_of(dev, struct __ssb_dev_wrapper, dev);
 292         return wrap->sdev;
 293 }
 294
 295 /* Device specific user data */
 296 static inline
 297 void ssb_set_drvdata(struct ssb_device *dev, void *data)
 298 {
 299         dev->drvdata = data;
 300 }
 301 static inline
 302 void * ssb_get_drvdata(struct ssb_device *dev)
 303 {
 304         return dev->drvdata;
 305 }
 306
 307 /* Devicetype specific user data. This is per device-type (not per device) */
 308 void ssb_set_devtypedata(struct ssb_device *dev, void *data);
 309 static inline
 310 void * ssb_get_devtypedata(struct ssb_device *dev)
 311 {
 312         return dev->devtypedata;
 313 }
 314
 315
 316 struct ssb_driver {
 317         const char *name;
 318         const struct ssb_device_id *id_table;
 319
 320         int (*probe)(struct ssb_device *dev, const struct ssb_device_id *id);
 321         void (*remove)(struct ssb_device *dev);
 322         int (*suspend)(struct ssb_device *dev, pm_message_t state);
 323         int (*resume)(struct ssb_device *dev);
 324         void (*shutdown)(struct ssb_device *dev);
 325
 326         struct device_driver drv;
 327 };
 328 #define drv_to_ssb_drv(_drv) container_of(_drv, struct ssb_driver, drv)
 329
 330 extern int __ssb_driver_register(struct ssb_driver *drv, struct module *owner);
 331 #define ssb_driver_register(drv) \
 332         __ssb_driver_register(drv, THIS_MODULE)
 333
 334 extern void ssb_driver_unregister(struct ssb_driver *drv);
 335
 336
 337
 338
 339 enum ssb_bustype {
 340         SSB_BUSTYPE_SSB,        /* This SSB bus is the system bus */
 341         SSB_BUSTYPE_PCI,        /* SSB is connected to PCI bus */
 342         SSB_BUSTYPE_PCMCIA,     /* SSB is connected to PCMCIA bus */
 343         SSB_BUSTYPE_SDIO,       /* SSB is connected to SDIO bus */
 344 };
 345
 346 /* board_vendor */
 347 #define SSB_BOARDVENDOR_BCM     0x14E4  /* Broadcom */
 348 #define SSB_BOARDVENDOR_DELL    0x1028  /* Dell */
 349 #define SSB_BOARDVENDOR_HP      0x0E11  /* HP */
 350 /* board_type */
 351 #define SSB_BOARD_BCM94301CB    0x0406
 352 #define SSB_BOARD_BCM94301MP    0x0407
 353 #define SSB_BOARD_BU4309        0x040A
 354 #define SSB_BOARD_BCM94309CB    0x040B
 355 #define SSB_BOARD_BCM4309MP     0x040C
 356 #define SSB_BOARD_BU4306        0x0416
 357 #define SSB_BOARD_BCM94306MP    0x0418
 358 #define SSB_BOARD_BCM4309G      0x0421
 359 #define SSB_BOARD_BCM4306CB     0x0417
 360 #define SSB_BOARD_BCM94306PC    0x0425  /* pcmcia 3.3v 4306 card */
 361 #define SSB_BOARD_BCM94306CBSG  0x042B  /* with SiGe PA */
 362 #define SSB_BOARD_PCSG94306     0x042D  /* with SiGe PA */
 363 #define SSB_BOARD_BU4704SD      0x042E  /* with sdram */
 364 #define SSB_BOARD_BCM94704AGR   0x042F  /* dual 11a/11g Router */
 365 #define SSB_BOARD_BCM94308MP    0x0430  /* 11a-only minipci */
 366 #define SSB_BOARD_BU4318        0x0447
 367 #define SSB_BOARD_CB4318        0x0448
 368 #define SSB_BOARD_MPG4318       0x0449
 369 #define SSB_BOARD_MP4318        0x044A
 370 #define SSB_BOARD_SD4318        0x044B
 371 #define SSB_BOARD_BCM94306P     0x044C  /* with SiGe */
 372 #define SSB_BOARD_BCM94303MP    0x044E
 373 #define SSB_BOARD_BCM94306MPM   0x0450
 374 #define SSB_BOARD_BCM94306MPL   0x0453
 375 #define SSB_BOARD_PC4303        0x0454  /* pcmcia */
 376 #define SSB_BOARD_BCM94306MPLNA 0x0457
 377 #define SSB_BOARD_BCM94306MPH   0x045B
 378 #define SSB_BOARD_BCM94306PCIV  0x045C
 379 #define SSB_BOARD_BCM94318MPGH  0x0463
 380 #define SSB_BOARD_BU4311        0x0464
 381 #define SSB_BOARD_BCM94311MC    0x0465
 382 #define SSB_BOARD_BCM94311MCAG  0x0466
 383 /* 4321 boards */
 384 #define SSB_BOARD_BU4321        0x046B
 385 #define SSB_BOARD_BU4321E       0x047C
 386 #define SSB_BOARD_MP4321        0x046C
 387 #define SSB_BOARD_CB2_4321      0x046D
 388 #define SSB_BOARD_CB2_4321_AG   0x0066
 389 #define SSB_BOARD_MC4321        0x046E
 390 /* 4325 boards */
 391 #define SSB_BOARD_BCM94325DEVBU 0x0490
 392 #define SSB_BOARD_BCM94325BGABU 0x0491
 393 #define SSB_BOARD_BCM94325SDGWB 0x0492
 394 #define SSB_BOARD_BCM94325SDGMDL        0x04AA
 395 #define SSB_BOARD_BCM94325SDGMDL2       0x04C6
 396 #define SSB_BOARD_BCM94325SDGMDL3       0x04C9
 397 #define SSB_BOARD_BCM94325SDABGWBA      0x04E1
 398 /* 4322 boards */
 399 #define SSB_BOARD_BCM94322MC    0x04A4
 400 #define SSB_BOARD_BCM94322USB   0x04A8  /* dualband */
 401 #define SSB_BOARD_BCM94322HM    0x04B0
 402 #define SSB_BOARD_BCM94322USB2D 0x04Bf  /* single band discrete front end */
 403 /* 4312 boards */
 404 #define SSB_BOARD_BU4312        0x048A
 405 #define SSB_BOARD_BCM4312MCGSG  0x04B5
 406 /* chip_package */
 407 #define SSB_CHIPPACK_BCM4712S   1       /* Small 200pin 4712 */
 408 #define SSB_CHIPPACK_BCM4712M   2       /* Medium 225pin 4712 */
 409 #define SSB_CHIPPACK_BCM4712L   0       /* Large 340pin 4712 */
 410
 411 #include <linux/ssb/ssb_driver_chipcommon.h>
 412 #include <linux/ssb/ssb_driver_mips.h>
 413 #include <linux/ssb/ssb_driver_extif.h>
 414 #include <linux/ssb/ssb_driver_pci.h>
 415
 416 struct ssb_bus {
 417         /* The MMIO area. */
 418         void __iomem *mmio;
 419
 420         const struct ssb_bus_ops *ops;
 421
 422         /* The core currently mapped into the MMIO window.
 423          * Not valid on all host-buses. So don't use outside of SSB. */
 424         struct ssb_device *mapped_device;
 425         union {
 426                 /* Currently mapped PCMCIA segment. (bustype == SSB_BUSTYPE_PCMCIA only) */
 427                 u8 mapped_pcmcia_seg;
 428                 /* Current SSB base address window for SDIO. */
 429                 u32 sdio_sbaddr;
 430         };
 431         /* Lock for core and segment switching.
 432          * On PCMCIA-host busses this is used to protect the whole MMIO access. */
 433         spinlock_t bar_lock;
 434
 435         /* The host-bus this backplane is running on. */
 436         enum ssb_bustype bustype;
 437         /* Pointers to the host-bus. Check bustype before using any of these pointers. */
 438         union {
 439                 /* Pointer to the PCI bus (only valid if bustype == SSB_BUSTYPE_PCI). */
 440                 struct pci_dev *host_pci;
 441                 /* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */
 442                 struct pcmcia_device *host_pcmcia;
 443                 /* Pointer to the SDIO device (only if bustype == SSB_BUSTYPE_SDIO). */
 444                 struct sdio_func *host_sdio;
 445         };
 446
 447         /* See enum ssb_quirks */
 448         unsigned int quirks;
 449
 450 #ifdef CONFIG_SSB_SPROM
 451         /* Mutex to protect the SPROM writing. */
 452         struct mutex sprom_mutex;
 453 #endif
 454
 455         /* ID information about the Chip. */
 456         u16 chip_id;
 457         u8 chip_rev;
 458         u16 sprom_offset;
 459         u16 sprom_size;         /* number of words in sprom */
 460         u8 chip_package;
 461
 462         /* List of devices (cores) on the backplane. */
 463         struct ssb_device devices[SSB_MAX_NR_CORES];
 464         u8 nr_devices;
 465
 466         /* Software ID number for this bus. */
 467         unsigned int busnumber;
 468
 469         /* The ChipCommon device (if available). */
 470         struct ssb_chipcommon chipco;
 471         /* The PCI-core device (if available). */
 472         struct ssb_pcicore pcicore;
 473         /* The MIPS-core device (if available). */
 474         struct ssb_mipscore mipscore;
 475         /* The EXTif-core device (if available). */
 476         struct ssb_extif extif;
 477
 478         /* The following structure elements are not available in early
 479          * SSB initialization. Though, they are available for regular
 480          * registered drivers at any stage. So be careful when
 481          * using them in the ssb core code. */
 482
 483         /* ID information about the PCB. */
 484         struct ssb_boardinfo boardinfo;
 485         /* Contents of the SPROM. */
 486         struct ssb_sprom sprom;
 487         /* If the board has a cardbus slot, this is set to true. */
 488         bool has_cardbus_slot;
 489
 490 #ifdef CONFIG_SSB_EMBEDDED
 491         /* Lock for GPIO register access. */
 492         spinlock_t gpio_lock;
 493         struct platform_device *watchdog;
 494 #endif /* EMBEDDED */
 495 #ifdef CONFIG_SSB_DRIVER_GPIO
 496         struct gpio_chip gpio;
 497         struct irq_domain *irq_domain;
 498 #endif /* DRIVER_GPIO */
 499
 500         /* Internal-only stuff follows. Do not touch. */
 501         struct list_head list;
 502 #ifdef CONFIG_SSB_DEBUG
 503         /* Is the bus already powered up? */
 504         bool powered_up;
 505         int power_warn_count;
 506 #endif /* DEBUG */
 507 };
 508
 509 enum ssb_quirks {
 510         /* SDIO connected card requires performing a read after writing a 32-bit value */
 511         SSB_QUIRK_SDIO_READ_AFTER_WRITE32       = (1 << 0),
 512 };
 513
 514 /* The initialization-invariants. */
 515 struct ssb_init_invariants {
 516         /* Versioning information about the PCB. */
 517         struct ssb_boardinfo boardinfo;
 518         /* The SPROM information. That's either stored in an
 519          * EEPROM or NVRAM on the board. */
 520         struct ssb_sprom sprom;
 521         /* If the board has a cardbus slot, this is set to true. */
 522         bool has_cardbus_slot;
 523 };
 524 /* Type of function to fetch the invariants. */
 525 typedef int (*ssb_invariants_func_t)(struct ssb_bus *bus,
 526                                      struct ssb_init_invariants *iv);
 527
 528 /* Register SoC bus. */
 529 extern int ssb_bus_host_soc_register(struct ssb_bus *bus,
 530                                      unsigned long baseaddr);
 531 #ifdef CONFIG_SSB_PCIHOST
 532 extern int ssb_bus_pcibus_register(struct ssb_bus *bus,
 533                                    struct pci_dev *host_pci);
 534 #endif /* CONFIG_SSB_PCIHOST */
 535 #ifdef CONFIG_SSB_PCMCIAHOST
 536 extern int ssb_bus_pcmciabus_register(struct ssb_bus *bus,
 537                                       struct pcmcia_device *pcmcia_dev,
 538                                       unsigned long baseaddr);
 539 #endif /* CONFIG_SSB_PCMCIAHOST */
 540 #ifdef CONFIG_SSB_SDIOHOST
 541 extern int ssb_bus_sdiobus_register(struct ssb_bus *bus,
 542                                     struct sdio_func *sdio_func,
 543                                     unsigned int quirks);
 544 #endif /* CONFIG_SSB_SDIOHOST */
 545
 546
 547 extern void ssb_bus_unregister(struct ssb_bus *bus);
 548
 549 /* Does the device have an SPROM? */
 550 extern bool ssb_is_sprom_available(struct ssb_bus *bus);
 551
 552 /* Set a fallback SPROM.
 553  * See kdoc at the function definition for complete documentation. */
 554 extern int ssb_arch_register_fallback_sprom(
 555                 int (*sprom_callback)(struct ssb_bus *bus,
 556                 struct ssb_sprom *out));
 557
 558 /* Suspend a SSB bus.
 559  * Call this from the parent bus suspend routine. */
 560 extern int ssb_bus_suspend(struct ssb_bus *bus);
 561 /* Resume a SSB bus.
 562  * Call this from the parent bus resume routine. */
 563 extern int ssb_bus_resume(struct ssb_bus *bus);
 564
 565 extern u32 ssb_clockspeed(struct ssb_bus *bus);
 566
 567 /* Is the device enabled in hardware? */
 568 int ssb_device_is_enabled(struct ssb_device *dev);
 569 /* Enable a device and pass device-specific SSB_TMSLOW flags.
 570  * If no device-specific flags are available, use 0. */
 571 void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags);
 572 /* Disable a device in hardware and pass SSB_TMSLOW flags (if any). */
 573 void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags);
 574
 575
 576 /* Device MMIO register read/write functions. */
 577 static inline u8 ssb_read8(struct ssb_device *dev, u16 offset)
 578 {
 579         return dev->ops->read8(dev, offset);
 580 }
 581 static inline u16 ssb_read16(struct ssb_device *dev, u16 offset)
 582 {
 583         return dev->ops->read16(dev, offset);
 584 }
 585 static inline u32 ssb_read32(struct ssb_device *dev, u16 offset)
 586 {
 587         return dev->ops->read32(dev, offset);
 588 }
 589 static inline void ssb_write8(struct ssb_device *dev, u16 offset, u8 value)
 590 {
 591         dev->ops->write8(dev, offset, value);
 592 }
 593 static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
 594 {
 595         dev->ops->write16(dev, offset, value);
 596 }
 597 static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
 598 {
 599         dev->ops->write32(dev, offset, value);
 600 }
 601 #ifdef CONFIG_SSB_BLOCKIO
 602 static inline void ssb_block_read(struct ssb_device *dev, void *buffer,
 603                                   size_t count, u16 offset, u8 reg_width)
 604 {
 605         dev->ops->block_read(dev, buffer, count, offset, reg_width);
 606 }
 607
 608 static inline void ssb_block_write(struct ssb_device *dev, const void *buffer,
 609                                    size_t count, u16 offset, u8 reg_width)
 610 {
 611         dev->ops->block_write(dev, buffer, count, offset, reg_width);
 612 }
 613 #endif /* CONFIG_SSB_BLOCKIO */
 614
 615
 616 /* The SSB DMA API. Use this API for any DMA operation on the device.
 617  * This API basically is a wrapper that calls the correct DMA API for
 618  * the host device type the SSB device is attached to. */
 619
 620 /* Translation (routing) bits that need to be ORed to DMA
 621  * addresses before they are given to a device. */
 622 extern u32 ssb_dma_translation(struct ssb_device *dev);
 623 #define SSB_DMA_TRANSLATION_MASK        0xC0000000
 624 #define SSB_DMA_TRANSLATION_SHIFT       30
 625
 626 static inline void __cold __ssb_dma_not_implemented(struct ssb_device *dev)
 627 {
 628 #ifdef CONFIG_SSB_DEBUG
 629         printk(KERN_ERR "SSB: BUG! Calling DMA API for "
 630                "unsupported bustype %d\n", dev->bus->bustype);
 631 #endif /* DEBUG */
 632 }
 633
 634 #ifdef CONFIG_SSB_PCIHOST
 635 /* PCI-host wrapper driver */
 636 extern int ssb_pcihost_register(struct pci_driver *driver);
 637 static inline void ssb_pcihost_unregister(struct pci_driver *driver)
 638 {
 639         pci_unregister_driver(driver);
 640 }
 641
 642 static inline
 643 void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
 644 {
 645         if (sdev->bus->bustype == SSB_BUSTYPE_PCI)
 646                 pci_set_power_state(sdev->bus->host_pci, state);
 647 }
 648 #else
 649 static inline void ssb_pcihost_unregister(struct pci_driver *driver)
 650 {
 651 }
 652
 653 static inline
 654 void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
 655 {
 656 }
 657 #endif /* CONFIG_SSB_PCIHOST */
 658
 659
 660 /* If a driver is shutdown or suspended, call this to signal
 661  * that the bus may be completely powered down. SSB will decide,
 662  * if it's really time to power down the bus, based on if there
 663  * are other devices that want to run. */
 664 extern int ssb_bus_may_powerdown(struct ssb_bus *bus);
 665 /* Before initializing and enabling a device, call this to power-up the bus.
 666  * If you want to allow use of dynamic-power-control, pass the flag.
 667  * Otherwise static always-on powercontrol will be used. */
 668 extern int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl);
 669
 670 extern void ssb_commit_settings(struct ssb_bus *bus);
 671
 672 /* Various helper functions */
 673 extern u32 ssb_admatch_base(u32 adm);
 674 extern u32 ssb_admatch_size(u32 adm);
 675
 676 /* PCI device mapping and fixup routines.
 677  * Called from the architecture pcibios init code.
 678  * These are only available on SSB_EMBEDDED configurations. */
 679 #ifdef CONFIG_SSB_EMBEDDED
 680 int ssb_pcibios_plat_dev_init(struct pci_dev *dev);
 681 int ssb_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
 682 #endif /* CONFIG_SSB_EMBEDDED */
 683
 684 #endif /* LINUX_SSB_H_ */