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
  11 #include <linux/ssb/ssb_regs.h>
  12
  13
  14 struct pcmcia_device;
  15 struct ssb_bus;
  16 struct ssb_driver;
  17
  18 struct ssb_sprom {
  19         u8 revision;
  20         u8 il0mac[6];           /* MAC address for 802.11b/g */
  21         u8 et0mac[6];           /* MAC address for Ethernet */
  22         u8 et1mac[6];           /* MAC address for 802.11a */
  23         u8 et0phyaddr;          /* MII address for enet0 */
  24         u8 et1phyaddr;          /* MII address for enet1 */
  25         u8 et0mdcport;          /* MDIO for enet0 */
  26         u8 et1mdcport;          /* MDIO for enet1 */
  27         u8 board_rev;           /* Board revision number from SPROM. */
  28         u8 country_code;        /* Country Code */
  29         u8 ant_available_a;     /* A-PHY antenna available bits (up to 4) */
  30         u8 ant_available_bg;    /* B/G-PHY antenna available bits (up to 4) */
  31         u16 pa0b0;
  32         u16 pa0b1;
  33         u16 pa0b2;
  34         u16 pa1b0;
  35         u16 pa1b1;
  36         u16 pa1b2;
  37         u8 gpio0;               /* GPIO pin 0 */
  38         u8 gpio1;               /* GPIO pin 1 */
  39         u8 gpio2;               /* GPIO pin 2 */
  40         u8 gpio3;               /* GPIO pin 3 */
  41         u16 maxpwr_a;           /* A-PHY Amplifier Max Power (in dBm Q5.2) */
  42         u16 maxpwr_bg;          /* B/G-PHY Amplifier Max Power (in dBm Q5.2) */
  43         u8 itssi_a;             /* Idle TSSI Target for A-PHY */
  44         u8 itssi_bg;            /* Idle TSSI Target for B/G-PHY */
  45         u16 boardflags_lo;      /* Boardflags (low 16 bits) */
  46         u16 boardflags_hi;      /* Boardflags (high 16 bits) */
  47
  48         /* Antenna gain values for up to 4 antennas
  49          * on each band. Values in dBm/4 (Q5.2). Negative gain means the
  50          * loss in the connectors is bigger than the gain. */
  51         struct {
  52                 struct {
  53                         s8 a0, a1, a2, a3;
  54                 } ghz24;        /* 2.4GHz band */
  55                 struct {
  56                         s8 a0, a1, a2, a3;
  57                 } ghz5;         /* 5GHz band */
  58         } antenna_gain;
  59
  60         /* TODO - add any parameters needed from rev 2, 3, or 4 SPROMs */
  61 };
  62
  63 /* Information about the PCB the circuitry is soldered on. */
  64 struct ssb_boardinfo {
  65         u16 vendor;
  66         u16 type;
  67         u16 rev;
  68 };
  69
  70
  71 struct ssb_device;
  72 /* Lowlevel read/write operations on the device MMIO.
  73  * Internal, don't use that outside of ssb. */
  74 struct ssb_bus_ops {
  75         u8 (*read8)(struct ssb_device *dev, u16 offset);
  76         u16 (*read16)(struct ssb_device *dev, u16 offset);
  77         u32 (*read32)(struct ssb_device *dev, u16 offset);
  78         void (*write8)(struct ssb_device *dev, u16 offset, u8 value);
  79         void (*write16)(struct ssb_device *dev, u16 offset, u16 value);
  80         void (*write32)(struct ssb_device *dev, u16 offset, u32 value);
  81 };
  82
  83
  84 /* Core-ID values. */
  85 #define SSB_DEV_CHIPCOMMON      0x800
  86 #define SSB_DEV_ILINE20         0x801
  87 #define SSB_DEV_SDRAM           0x803
  88 #define SSB_DEV_PCI             0x804
  89 #define SSB_DEV_MIPS            0x805
  90 #define SSB_DEV_ETHERNET        0x806
  91 #define SSB_DEV_V90             0x807
  92 #define SSB_DEV_USB11_HOSTDEV   0x808
  93 #define SSB_DEV_ADSL            0x809
  94 #define SSB_DEV_ILINE100        0x80A
  95 #define SSB_DEV_IPSEC           0x80B
  96 #define SSB_DEV_PCMCIA          0x80D
  97 #define SSB_DEV_INTERNAL_MEM    0x80E
  98 #define SSB_DEV_MEMC_SDRAM      0x80F
  99 #define SSB_DEV_EXTIF           0x811
 100 #define SSB_DEV_80211           0x812
 101 #define SSB_DEV_MIPS_3302       0x816
 102 #define SSB_DEV_USB11_HOST      0x817
 103 #define SSB_DEV_USB11_DEV       0x818
 104 #define SSB_DEV_USB20_HOST      0x819
 105 #define SSB_DEV_USB20_DEV       0x81A
 106 #define SSB_DEV_SDIO_HOST       0x81B
 107 #define SSB_DEV_ROBOSWITCH      0x81C
 108 #define SSB_DEV_PARA_ATA        0x81D
 109 #define SSB_DEV_SATA_XORDMA     0x81E
 110 #define SSB_DEV_ETHERNET_GBIT   0x81F
 111 #define SSB_DEV_PCIE            0x820
 112 #define SSB_DEV_MIMO_PHY        0x821
 113 #define SSB_DEV_SRAM_CTRLR      0x822
 114 #define SSB_DEV_MINI_MACPHY     0x823
 115 #define SSB_DEV_ARM_1176        0x824
 116 #define SSB_DEV_ARM_7TDMI       0x825
 117
 118 /* Vendor-ID values */
 119 #define SSB_VENDOR_BROADCOM     0x4243
 120
 121 /* Some kernel subsystems poke with dev->drvdata, so we must use the
 122  * following ugly workaround to get from struct device to struct ssb_device */
 123 struct __ssb_dev_wrapper {
 124         struct device dev;
 125         struct ssb_device *sdev;
 126 };
 127
 128 struct ssb_device {
 129         /* Having a copy of the ops pointer in each dev struct
 130          * is an optimization. */
 131         const struct ssb_bus_ops *ops;
 132
 133         struct device *dev;
 134         struct ssb_bus *bus;
 135         struct ssb_device_id id;
 136
 137         u8 core_index;
 138         unsigned int irq;
 139
 140         /* Internal-only stuff follows. */
 141         void *drvdata;          /* Per-device data */
 142         void *devtypedata;      /* Per-devicetype (eg 802.11) data */
 143 };
 144
 145 /* Go from struct device to struct ssb_device. */
 146 static inline
 147 struct ssb_device * dev_to_ssb_dev(struct device *dev)
 148 {
 149         struct __ssb_dev_wrapper *wrap;
 150         wrap = container_of(dev, struct __ssb_dev_wrapper, dev);
 151         return wrap->sdev;
 152 }
 153
 154 /* Device specific user data */
 155 static inline
 156 void ssb_set_drvdata(struct ssb_device *dev, void *data)
 157 {
 158         dev->drvdata = data;
 159 }
 160 static inline
 161 void * ssb_get_drvdata(struct ssb_device *dev)
 162 {
 163         return dev->drvdata;
 164 }
 165
 166 /* Devicetype specific user data. This is per device-type (not per device) */
 167 void ssb_set_devtypedata(struct ssb_device *dev, void *data);
 168 static inline
 169 void * ssb_get_devtypedata(struct ssb_device *dev)
 170 {
 171         return dev->devtypedata;
 172 }
 173
 174
 175 struct ssb_driver {
 176         const char *name;
 177         const struct ssb_device_id *id_table;
 178
 179         int (*probe)(struct ssb_device *dev, const struct ssb_device_id *id);
 180         void (*remove)(struct ssb_device *dev);
 181         int (*suspend)(struct ssb_device *dev, pm_message_t state);
 182         int (*resume)(struct ssb_device *dev);
 183         void (*shutdown)(struct ssb_device *dev);
 184
 185         struct device_driver drv;
 186 };
 187 #define drv_to_ssb_drv(_drv) container_of(_drv, struct ssb_driver, drv)
 188
 189 extern int __ssb_driver_register(struct ssb_driver *drv, struct module *owner);
 190 static inline int ssb_driver_register(struct ssb_driver *drv)
 191 {
 192         return __ssb_driver_register(drv, THIS_MODULE);
 193 }
 194 extern void ssb_driver_unregister(struct ssb_driver *drv);
 195
 196
 197
 198
 199 enum ssb_bustype {
 200         SSB_BUSTYPE_SSB,        /* This SSB bus is the system bus */
 201         SSB_BUSTYPE_PCI,        /* SSB is connected to PCI bus */
 202         SSB_BUSTYPE_PCMCIA,     /* SSB is connected to PCMCIA bus */
 203 };
 204
 205 /* board_vendor */
 206 #define SSB_BOARDVENDOR_BCM     0x14E4  /* Broadcom */
 207 #define SSB_BOARDVENDOR_DELL    0x1028  /* Dell */
 208 #define SSB_BOARDVENDOR_HP      0x0E11  /* HP */
 209 /* board_type */
 210 #define SSB_BOARD_BCM94306MP    0x0418
 211 #define SSB_BOARD_BCM4309G      0x0421
 212 #define SSB_BOARD_BCM4306CB     0x0417
 213 #define SSB_BOARD_BCM4309MP     0x040C
 214 #define SSB_BOARD_MP4318        0x044A
 215 #define SSB_BOARD_BU4306        0x0416
 216 #define SSB_BOARD_BU4309        0x040A
 217 /* chip_package */
 218 #define SSB_CHIPPACK_BCM4712S   1       /* Small 200pin 4712 */
 219 #define SSB_CHIPPACK_BCM4712M   2       /* Medium 225pin 4712 */
 220 #define SSB_CHIPPACK_BCM4712L   0       /* Large 340pin 4712 */
 221
 222 #include <linux/ssb/ssb_driver_chipcommon.h>
 223 #include <linux/ssb/ssb_driver_mips.h>
 224 #include <linux/ssb/ssb_driver_extif.h>
 225 #include <linux/ssb/ssb_driver_pci.h>
 226
 227 struct ssb_bus {
 228         /* The MMIO area. */
 229         void __iomem *mmio;
 230
 231         const struct ssb_bus_ops *ops;
 232
 233         /* The core in the basic address register window. (PCI bus only) */
 234         struct ssb_device *mapped_device;
 235         /* Currently mapped PCMCIA segment. (bustype == SSB_BUSTYPE_PCMCIA only) */
 236         u8 mapped_pcmcia_seg;
 237         /* Lock for core and segment switching.
 238          * On PCMCIA-host busses this is used to protect the whole MMIO access. */
 239         spinlock_t bar_lock;
 240
 241         /* The bus this backplane is running on. */
 242         enum ssb_bustype bustype;
 243         /* Pointer to the PCI bus (only valid if bustype == SSB_BUSTYPE_PCI). */
 244         struct pci_dev *host_pci;
 245         /* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */
 246         struct pcmcia_device *host_pcmcia;
 247
 248 #ifdef CONFIG_SSB_SPROM
 249         /* Mutex to protect the SPROM writing. */
 250         struct mutex sprom_mutex;
 251 #endif
 252
 253         /* ID information about the Chip. */
 254         u16 chip_id;
 255         u16 chip_rev;
 256         u16 sprom_size;         /* number of words in sprom */
 257         u8 chip_package;
 258
 259         /* List of devices (cores) on the backplane. */
 260         struct ssb_device devices[SSB_MAX_NR_CORES];
 261         u8 nr_devices;
 262
 263         /* Software ID number for this bus. */
 264         unsigned int busnumber;
 265
 266         /* The ChipCommon device (if available). */
 267         struct ssb_chipcommon chipco;
 268         /* The PCI-core device (if available). */
 269         struct ssb_pcicore pcicore;
 270         /* The MIPS-core device (if available). */
 271         struct ssb_mipscore mipscore;
 272         /* The EXTif-core device (if available). */
 273         struct ssb_extif extif;
 274
 275         /* The following structure elements are not available in early
 276          * SSB initialization. Though, they are available for regular
 277          * registered drivers at any stage. So be careful when
 278          * using them in the ssb core code. */
 279
 280         /* ID information about the PCB. */
 281         struct ssb_boardinfo boardinfo;
 282         /* Contents of the SPROM. */
 283         struct ssb_sprom sprom;
 284         /* If the board has a cardbus slot, this is set to true. */
 285         bool has_cardbus_slot;
 286
 287 #ifdef CONFIG_SSB_EMBEDDED
 288         /* Lock for GPIO register access. */
 289         spinlock_t gpio_lock;
 290 #endif /* EMBEDDED */
 291
 292         /* Internal-only stuff follows. Do not touch. */
 293         struct list_head list;
 294 #ifdef CONFIG_SSB_DEBUG
 295         /* Is the bus already powered up? */
 296         bool powered_up;
 297         int power_warn_count;
 298 #endif /* DEBUG */
 299 };
 300
 301 /* The initialization-invariants. */
 302 struct ssb_init_invariants {
 303         /* Versioning information about the PCB. */
 304         struct ssb_boardinfo boardinfo;
 305         /* The SPROM information. That's either stored in an
 306          * EEPROM or NVRAM on the board. */
 307         struct ssb_sprom sprom;
 308         /* If the board has a cardbus slot, this is set to true. */
 309         bool has_cardbus_slot;
 310 };
 311 /* Type of function to fetch the invariants. */
 312 typedef int (*ssb_invariants_func_t)(struct ssb_bus *bus,
 313                                      struct ssb_init_invariants *iv);
 314
 315 /* Register a SSB system bus. get_invariants() is called after the
 316  * basic system devices are initialized.
 317  * The invariants are usually fetched from some NVRAM.
 318  * Put the invariants into the struct pointed to by iv. */
 319 extern int ssb_bus_ssbbus_register(struct ssb_bus *bus,
 320                                    unsigned long baseaddr,
 321                                    ssb_invariants_func_t get_invariants);
 322 #ifdef CONFIG_SSB_PCIHOST
 323 extern int ssb_bus_pcibus_register(struct ssb_bus *bus,
 324                                    struct pci_dev *host_pci);
 325 #endif /* CONFIG_SSB_PCIHOST */
 326 #ifdef CONFIG_SSB_PCMCIAHOST
 327 extern int ssb_bus_pcmciabus_register(struct ssb_bus *bus,
 328                                       struct pcmcia_device *pcmcia_dev,
 329                                       unsigned long baseaddr);
 330 #endif /* CONFIG_SSB_PCMCIAHOST */
 331
 332 extern void ssb_bus_unregister(struct ssb_bus *bus);
 333
 334 /* Suspend a SSB bus.
 335  * Call this from the parent bus suspend routine. */
 336 extern int ssb_bus_suspend(struct ssb_bus *bus);
 337 /* Resume a SSB bus.
 338  * Call this from the parent bus resume routine. */
 339 extern int ssb_bus_resume(struct ssb_bus *bus);
 340
 341 extern u32 ssb_clockspeed(struct ssb_bus *bus);
 342
 343 /* Is the device enabled in hardware? */
 344 int ssb_device_is_enabled(struct ssb_device *dev);
 345 /* Enable a device and pass device-specific SSB_TMSLOW flags.
 346  * If no device-specific flags are available, use 0. */
 347 void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags);
 348 /* Disable a device in hardware and pass SSB_TMSLOW flags (if any). */
 349 void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags);
 350
 351
 352 /* Device MMIO register read/write functions. */
 353 static inline u8 ssb_read8(struct ssb_device *dev, u16 offset)
 354 {
 355         return dev->ops->read8(dev, offset);
 356 }
 357 static inline u16 ssb_read16(struct ssb_device *dev, u16 offset)
 358 {
 359         return dev->ops->read16(dev, offset);
 360 }
 361 static inline u32 ssb_read32(struct ssb_device *dev, u16 offset)
 362 {
 363         return dev->ops->read32(dev, offset);
 364 }
 365 static inline void ssb_write8(struct ssb_device *dev, u16 offset, u8 value)
 366 {
 367         dev->ops->write8(dev, offset, value);
 368 }
 369 static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
 370 {
 371         dev->ops->write16(dev, offset, value);
 372 }
 373 static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
 374 {
 375         dev->ops->write32(dev, offset, value);
 376 }
 377
 378
 379 /* Translation (routing) bits that need to be ORed to DMA
 380  * addresses before they are given to a device. */
 381 extern u32 ssb_dma_translation(struct ssb_device *dev);
 382 #define SSB_DMA_TRANSLATION_MASK        0xC0000000
 383 #define SSB_DMA_TRANSLATION_SHIFT       30
 384
 385 extern int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask);
 386
 387
 388 #ifdef CONFIG_SSB_PCIHOST
 389 /* PCI-host wrapper driver */
 390 extern int ssb_pcihost_register(struct pci_driver *driver);
 391 static inline void ssb_pcihost_unregister(struct pci_driver *driver)
 392 {
 393         pci_unregister_driver(driver);
 394 }
 395
 396 static inline
 397 void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
 398 {
 399         if (sdev->bus->bustype == SSB_BUSTYPE_PCI)
 400                 pci_set_power_state(sdev->bus->host_pci, state);
 401 }
 402 #else
 403 static inline void ssb_pcihost_unregister(struct pci_driver *driver)
 404 {
 405 }
 406
 407 static inline
 408 void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
 409 {
 410 }
 411 #endif /* CONFIG_SSB_PCIHOST */
 412
 413
 414 /* If a driver is shutdown or suspended, call this to signal
 415  * that the bus may be completely powered down. SSB will decide,
 416  * if it's really time to power down the bus, based on if there
 417  * are other devices that want to run. */
 418 extern int ssb_bus_may_powerdown(struct ssb_bus *bus);
 419 /* Before initializing and enabling a device, call this to power-up the bus.
 420  * If you want to allow use of dynamic-power-control, pass the flag.
 421  * Otherwise static always-on powercontrol will be used. */
 422 extern int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl);
 423
 424
 425 /* Various helper functions */
 426 extern u32 ssb_admatch_base(u32 adm);
 427 extern u32 ssb_admatch_size(u32 adm);
 428
 429 /* PCI device mapping and fixup routines.
 430  * Called from the architecture pcibios init code.
 431  * These are only available on SSB_EMBEDDED configurations. */
 432 #ifdef CONFIG_SSB_EMBEDDED
 433 int ssb_pcibios_plat_dev_init(struct pci_dev *dev);
 434 int ssb_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
 435 #endif /* CONFIG_SSB_EMBEDDED */
 436
 437 #endif /* LINUX_SSB_H_ */