target/linux/generic-2.6/files/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         u16 (*read16)(struct ssb_device *dev, u16 offset);
  76         u32 (*read32)(struct ssb_device *dev, u16 offset);
  77         void (*write16)(struct ssb_device *dev, u16 offset, u16 value);
  78         void (*write32)(struct ssb_device *dev, u16 offset, u32 value);
  79 };
  80
  81
  82 /* Core-ID values. */
  83 #define SSB_DEV_CHIPCOMMON      0x800
  84 #define SSB_DEV_ILINE20         0x801
  85 #define SSB_DEV_SDRAM           0x803
  86 #define SSB_DEV_PCI             0x804
  87 #define SSB_DEV_MIPS            0x805
  88 #define SSB_DEV_ETHERNET        0x806
  89 #define SSB_DEV_V90             0x807
  90 #define SSB_DEV_USB11_HOSTDEV   0x808
  91 #define SSB_DEV_ADSL            0x809
  92 #define SSB_DEV_ILINE100        0x80A
  93 #define SSB_DEV_IPSEC           0x80B
  94 #define SSB_DEV_PCMCIA          0x80D
  95 #define SSB_DEV_INTERNAL_MEM    0x80E
  96 #define SSB_DEV_MEMC_SDRAM      0x80F
  97 #define SSB_DEV_EXTIF           0x811
  98 #define SSB_DEV_80211           0x812
  99 #define SSB_DEV_MIPS_3302       0x816
 100 #define SSB_DEV_USB11_HOST      0x817
 101 #define SSB_DEV_USB11_DEV       0x818
 102 #define SSB_DEV_USB20_HOST      0x819
 103 #define SSB_DEV_USB20_DEV       0x81A
 104 #define SSB_DEV_SDIO_HOST       0x81B
 105 #define SSB_DEV_ROBOSWITCH      0x81C
 106 #define SSB_DEV_PARA_ATA        0x81D
 107 #define SSB_DEV_SATA_XORDMA     0x81E
 108 #define SSB_DEV_ETHERNET_GBIT   0x81F
 109 #define SSB_DEV_PCIE            0x820
 110 #define SSB_DEV_MIMO_PHY        0x821
 111 #define SSB_DEV_SRAM_CTRLR      0x822
 112 #define SSB_DEV_MINI_MACPHY     0x823
 113 #define SSB_DEV_ARM_1176        0x824
 114 #define SSB_DEV_ARM_7TDMI       0x825
 115
 116 /* Vendor-ID values */
 117 #define SSB_VENDOR_BROADCOM     0x4243
 118
 119 /* Some kernel subsystems poke with dev->drvdata, so we must use the
 120  * following ugly workaround to get from struct device to struct ssb_device */
 121 struct __ssb_dev_wrapper {
 122         struct device dev;
 123         struct ssb_device *sdev;
 124 };
 125
 126 struct ssb_device {
 127         /* Having a copy of the ops pointer in each dev struct
 128          * is an optimization. */
 129         const struct ssb_bus_ops *ops;
 130
 131         struct device *dev;
 132         struct ssb_bus *bus;
 133         struct ssb_device_id id;
 134
 135         u8 core_index;
 136         unsigned int irq;
 137
 138         /* Internal-only stuff follows. */
 139         void *drvdata;          /* Per-device data */
 140         void *devtypedata;      /* Per-devicetype (eg 802.11) data */
 141 };
 142
 143 /* Go from struct device to struct ssb_device. */
 144 static inline
 145 struct ssb_device * dev_to_ssb_dev(struct device *dev)
 146 {
 147         struct __ssb_dev_wrapper *wrap;
 148         wrap = container_of(dev, struct __ssb_dev_wrapper, dev);
 149         return wrap->sdev;
 150 }
 151
 152 /* Device specific user data */
 153 static inline
 154 void ssb_set_drvdata(struct ssb_device *dev, void *data)
 155 {
 156         dev->drvdata = data;
 157 }
 158 static inline
 159 void * ssb_get_drvdata(struct ssb_device *dev)
 160 {
 161         return dev->drvdata;
 162 }
 163
 164 /* Devicetype specific user data. This is per device-type (not per device) */
 165 void ssb_set_devtypedata(struct ssb_device *dev, void *data);
 166 static inline
 167 void * ssb_get_devtypedata(struct ssb_device *dev)
 168 {
 169         return dev->devtypedata;
 170 }
 171
 172
 173 struct ssb_driver {
 174         const char *name;
 175         const struct ssb_device_id *id_table;
 176
 177         int (*probe)(struct ssb_device *dev, const struct ssb_device_id *id);
 178         void (*remove)(struct ssb_device *dev);
 179         int (*suspend)(struct ssb_device *dev, pm_message_t state);
 180         int (*resume)(struct ssb_device *dev);
 181         void (*shutdown)(struct ssb_device *dev);
 182
 183         struct device_driver drv;
 184 };
 185 #define drv_to_ssb_drv(_drv) container_of(_drv, struct ssb_driver, drv)
 186
 187 extern int __ssb_driver_register(struct ssb_driver *drv, struct module *owner);
 188 static inline int ssb_driver_register(struct ssb_driver *drv)
 189 {
 190         return __ssb_driver_register(drv, THIS_MODULE);
 191 }
 192 extern void ssb_driver_unregister(struct ssb_driver *drv);
 193
 194
 195
 196
 197 enum ssb_bustype {
 198         SSB_BUSTYPE_SSB,        /* This SSB bus is the system bus */
 199         SSB_BUSTYPE_PCI,        /* SSB is connected to PCI bus */
 200         SSB_BUSTYPE_PCMCIA,     /* SSB is connected to PCMCIA bus */
 201 };
 202
 203 /* board_vendor */
 204 #define SSB_BOARDVENDOR_BCM     0x14E4  /* Broadcom */
 205 #define SSB_BOARDVENDOR_DELL    0x1028  /* Dell */
 206 #define SSB_BOARDVENDOR_HP      0x0E11  /* HP */
 207 /* board_type */
 208 #define SSB_BOARD_BCM94306MP    0x0418
 209 #define SSB_BOARD_BCM4309G      0x0421
 210 #define SSB_BOARD_BCM4306CB     0x0417
 211 #define SSB_BOARD_BCM4309MP     0x040C
 212 #define SSB_BOARD_MP4318        0x044A
 213 #define SSB_BOARD_BU4306        0x0416
 214 #define SSB_BOARD_BU4309        0x040A
 215 /* chip_package */
 216 #define SSB_CHIPPACK_BCM4712S   1       /* Small 200pin 4712 */
 217 #define SSB_CHIPPACK_BCM4712M   2       /* Medium 225pin 4712 */
 218 #define SSB_CHIPPACK_BCM4712L   0       /* Large 340pin 4712 */
 219
 220 #include <linux/ssb/ssb_driver_chipcommon.h>
 221 #include <linux/ssb/ssb_driver_mips.h>
 222 #include <linux/ssb/ssb_driver_extif.h>
 223 #include <linux/ssb/ssb_driver_pci.h>
 224
 225 struct ssb_bus {
 226         /* The MMIO area. */
 227         void __iomem *mmio;
 228
 229         const struct ssb_bus_ops *ops;
 230
 231         /* The core in the basic address register window. (PCI bus only) */
 232         struct ssb_device *mapped_device;
 233         /* Currently mapped PCMCIA segment. (bustype == SSB_BUSTYPE_PCMCIA only) */
 234         u8 mapped_pcmcia_seg;
 235         /* Lock for core and segment switching.
 236          * On PCMCIA-host busses this is used to protect the whole MMIO access. */
 237         spinlock_t bar_lock;
 238
 239         /* The bus this backplane is running on. */
 240         enum ssb_bustype bustype;
 241         /* Pointer to the PCI bus (only valid if bustype == SSB_BUSTYPE_PCI). */
 242         struct pci_dev *host_pci;
 243         /* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */
 244         struct pcmcia_device *host_pcmcia;
 245
 246 #ifdef CONFIG_SSB_PCIHOST
 247         /* Mutex to protect the SPROM writing. */
 248         struct mutex pci_sprom_mutex;
 249 #endif
 250
 251         /* ID information about the Chip. */
 252         u16 chip_id;
 253         u16 chip_rev;
 254         u16 sprom_size;         /* number of words in sprom */
 255         u8 chip_package;
 256
 257         /* List of devices (cores) on the backplane. */
 258         struct ssb_device devices[SSB_MAX_NR_CORES];
 259         u8 nr_devices;
 260
 261         /* Reference count. Number of suspended devices. */
 262         u8 suspend_cnt;
 263
 264         /* Software ID number for this bus. */
 265         unsigned int busnumber;
 266
 267         /* The ChipCommon device (if available). */
 268         struct ssb_chipcommon chipco;
 269         /* The PCI-core device (if available). */
 270         struct ssb_pcicore pcicore;
 271         /* The MIPS-core device (if available). */
 272         struct ssb_mipscore mipscore;
 273         /* The EXTif-core device (if available). */
 274         struct ssb_extif extif;
 275
 276         /* The following structure elements are not available in early
 277          * SSB initialization. Though, they are available for regular
 278          * registered drivers at any stage. So be careful when
 279          * using them in the ssb core code. */
 280
 281         /* ID information about the PCB. */
 282         struct ssb_boardinfo boardinfo;
 283         /* Contents of the SPROM. */
 284         struct ssb_sprom sprom;
 285
 286         /* Internal-only stuff follows. Do not touch. */
 287         struct list_head list;
 288 #ifdef CONFIG_SSB_DEBUG
 289         /* Is the bus already powered up? */
 290         bool powered_up;
 291         int power_warn_count;
 292 #endif /* DEBUG */
 293 };
 294
 295 /* The initialization-invariants. */
 296 struct ssb_init_invariants {
 297         struct ssb_boardinfo boardinfo;
 298         struct ssb_sprom sprom;
 299 };
 300 /* Type of function to fetch the invariants. */
 301 typedef int (*ssb_invariants_func_t)(struct ssb_bus *bus,
 302                                      struct ssb_init_invariants *iv);
 303
 304 /* Register a SSB system bus. get_invariants() is called after the
 305  * basic system devices are initialized.
 306  * The invariants are usually fetched from some NVRAM.
 307  * Put the invariants into the struct pointed to by iv. */
 308 extern int ssb_bus_ssbbus_register(struct ssb_bus *bus,
 309                                    unsigned long baseaddr,
 310                                    ssb_invariants_func_t get_invariants);
 311 #ifdef CONFIG_SSB_PCIHOST
 312 extern int ssb_bus_pcibus_register(struct ssb_bus *bus,
 313                                    struct pci_dev *host_pci);
 314 #endif /* CONFIG_SSB_PCIHOST */
 315 #ifdef CONFIG_SSB_PCMCIAHOST
 316 extern int ssb_bus_pcmciabus_register(struct ssb_bus *bus,
 317                                       struct pcmcia_device *pcmcia_dev,
 318                                       unsigned long baseaddr);
 319 #endif /* CONFIG_SSB_PCMCIAHOST */
 320
 321 extern void ssb_bus_unregister(struct ssb_bus *bus);
 322
 323 extern u32 ssb_clockspeed(struct ssb_bus *bus);
 324
 325 /* Is the device enabled in hardware? */
 326 int ssb_device_is_enabled(struct ssb_device *dev);
 327 /* Enable a device and pass device-specific SSB_TMSLOW flags.
 328  * If no device-specific flags are available, use 0. */
 329 void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags);
 330 /* Disable a device in hardware and pass SSB_TMSLOW flags (if any). */
 331 void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags);
 332
 333
 334 /* Device MMIO register read/write functions. */
 335 static inline u16 ssb_read16(struct ssb_device *dev, u16 offset)
 336 {
 337         return dev->ops->read16(dev, offset);
 338 }
 339 static inline u32 ssb_read32(struct ssb_device *dev, u16 offset)
 340 {
 341         return dev->ops->read32(dev, offset);
 342 }
 343 static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
 344 {
 345         dev->ops->write16(dev, offset, value);
 346 }
 347 static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
 348 {
 349         dev->ops->write32(dev, offset, value);
 350 }
 351
 352
 353 /* Translation (routing) bits that need to be ORed to DMA
 354  * addresses before they are given to a device. */
 355 extern u32 ssb_dma_translation(struct ssb_device *dev);
 356 #define SSB_DMA_TRANSLATION_MASK        0xC0000000
 357 #define SSB_DMA_TRANSLATION_SHIFT       30
 358
 359 extern int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask);
 360
 361
 362 #ifdef CONFIG_SSB_PCIHOST
 363 /* PCI-host wrapper driver */
 364 extern int ssb_pcihost_register(struct pci_driver *driver);
 365 static inline void ssb_pcihost_unregister(struct pci_driver *driver)
 366 {
 367         pci_unregister_driver(driver);
 368 }
 369
 370 static inline
 371 void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
 372 {
 373         if (sdev->bus->bustype == SSB_BUSTYPE_PCI)
 374                 pci_set_power_state(sdev->bus->host_pci, state);
 375 }
 376 #else
 377 static inline void ssb_pcihost_unregister(struct pci_driver *driver)
 378 {
 379 }
 380
 381 static inline
 382 void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state)
 383 {
 384 }
 385 #endif /* CONFIG_SSB_PCIHOST */
 386
 387
 388 /* If a driver is shutdown or suspended, call this to signal
 389  * that the bus may be completely powered down. SSB will decide,
 390  * if it's really time to power down the bus, based on if there
 391  * are other devices that want to run. */
 392 extern int ssb_bus_may_powerdown(struct ssb_bus *bus);
 393 /* Before initializing and enabling a device, call this to power-up the bus.
 394  * If you want to allow use of dynamic-power-control, pass the flag.
 395  * Otherwise static always-on powercontrol will be used. */
 396 extern int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl);
 397
 398
 399 /* Various helper functions */
 400 extern u32 ssb_admatch_base(u32 adm);
 401 extern u32 ssb_admatch_size(u32 adm);
 402
 403
 404 #endif /* LINUX_SSB_H_ */