drivers/staging/brcm80211/include/siutils.h

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef _siutils_h_
  18 #define _siutils_h_
  19
  20 #include <hndsoc.h>
  21
  22 #if !defined(WLC_LOW)
  23 #include "bcm_rpc.h"
  24 #endif
  25 /*
  26  * Data structure to export all chip specific common variables
  27  *   public (read-only) portion of siutils handle returned by si_attach()
  28  */
  29 struct si_pub {
  30         uint socitype;          /* SOCI_SB, SOCI_AI */
  31
  32         uint bustype;           /* SI_BUS, PCI_BUS */
  33         uint buscoretype;       /* PCI_CORE_ID, PCIE_CORE_ID, PCMCIA_CORE_ID */
  34         uint buscorerev;        /* buscore rev */
  35         uint buscoreidx;        /* buscore index */
  36         int ccrev;              /* chip common core rev */
  37         uint32 cccaps;          /* chip common capabilities */
  38         uint32 cccaps_ext;      /* chip common capabilities extension */
  39         int pmurev;             /* pmu core rev */
  40         uint32 pmucaps;         /* pmu capabilities */
  41         uint boardtype;         /* board type */
  42         uint boardvendor;       /* board vendor */
  43         uint boardflags;        /* board flags */
  44         uint boardflags2;       /* board flags2 */
  45         uint chip;              /* chip number */
  46         uint chiprev;           /* chip revision */
  47         uint chippkg;           /* chip package option */
  48         uint32 chipst;          /* chip status */
  49         bool issim;             /* chip is in simulation or emulation */
  50         uint socirev;           /* SOC interconnect rev */
  51         bool pci_pr32414;
  52
  53 #if !defined(WLC_LOW)
  54         rpc_info_t *rpc;
  55 #endif
  56 };
  57
  58 /* for HIGH_ONLY driver, the si_t must be writable to allow states sync from BMAC to HIGH driver
  59  * for monolithic driver, it is readonly to prevent accident change
  60  */
  61 #if !defined(WLC_LOW)
  62 typedef struct si_pub si_t;
  63 #else
  64 typedef const struct si_pub si_t;
  65 #endif
  66
  67 /*
  68  * Many of the routines below take an 'sih' handle as their first arg.
  69  * Allocate this by calling si_attach().  Free it by calling si_detach().
  70  * At any one time, the sih is logically focused on one particular si core
  71  * (the "current core").
  72  * Use si_setcore() or si_setcoreidx() to change the association to another core.
  73  */
  74
  75 #define BADIDX          (SI_MAXCORES + 1)
  76
  77 /* clkctl xtal what flags */
  78 #define XTAL                    0x1     /* primary crystal oscillator (2050) */
  79 #define PLL                     0x2     /* main chip pll */
  80
  81 /* clkctl clk mode */
  82 #define CLK_FAST                0       /* force fast (pll) clock */
  83 #define CLK_DYNAMIC             2       /* enable dynamic clock control */
  84
  85 /* GPIO usage priorities */
  86 #define GPIO_DRV_PRIORITY       0       /* Driver */
  87 #define GPIO_APP_PRIORITY       1       /* Application */
  88 #define GPIO_HI_PRIORITY        2       /* Highest priority. Ignore GPIO reservation */
  89
  90 /* GPIO pull up/down */
  91 #define GPIO_PULLUP             0
  92 #define GPIO_PULLDN             1
  93
  94 /* GPIO event regtype */
  95 #define GPIO_REGEVT             0       /* GPIO register event */
  96 #define GPIO_REGEVT_INTMSK      1       /* GPIO register event int mask */
  97 #define GPIO_REGEVT_INTPOL      2       /* GPIO register event int polarity */
  98
  99 /* device path */
 100 #define SI_DEVPATH_BUFSZ        16      /* min buffer size in bytes */
 101
 102 /* SI routine enumeration: to be used by update function with multiple hooks */
 103 #define SI_DOATTACH     1
 104 #define SI_PCIDOWN      2
 105 #define SI_PCIUP        3
 106
 107 #define ISSIM_ENAB(sih) 0
 108
 109 /* PMU clock/power control */
 110 #if defined(BCMPMUCTL)
 111 #define PMUCTL_ENAB(sih)        (BCMPMUCTL)
 112 #else
 113 #define PMUCTL_ENAB(sih)        ((sih)->cccaps & CC_CAP_PMU)
 114 #endif
 115
 116 /* chipcommon clock/power control (exclusive with PMU's) */
 117 #if defined(BCMPMUCTL) && BCMPMUCTL
 118 #define CCCTL_ENAB(sih)         (0)
 119 #define CCPLL_ENAB(sih)         (0)
 120 #else
 121 #define CCCTL_ENAB(sih)         ((sih)->cccaps & CC_CAP_PWR_CTL)
 122 #define CCPLL_ENAB(sih)         ((sih)->cccaps & CC_CAP_PLL_MASK)
 123 #endif
 124
 125 typedef void (*gpio_handler_t) (uint32 stat, void *arg);
 126
 127 /* External PA enable mask */
 128 #define GPIO_CTRL_EPA_EN_MASK 0x40
 129
 130 /* === exported functions === */
 131 extern si_t *si_attach(uint pcidev, osl_t *osh, void *regs, uint bustype,
 132                        void *sdh, char **vars, uint *varsz);
 133
 134 extern void si_detach(si_t *sih);
 135 extern bool si_pci_war16165(si_t *sih);
 136
 137 extern uint si_coreid(si_t *sih);
 138 extern uint si_flag(si_t *sih);
 139 extern uint si_coreidx(si_t *sih);
 140 extern uint si_corerev(si_t *sih);
 141 extern void *si_osh(si_t *sih);
 142 extern uint si_corereg(si_t *sih, uint coreidx, uint regoff, uint mask,
 143                 uint val);
 144 extern void si_write_wrapperreg(si_t *sih, uint32 offset, uint32 val);
 145 extern uint32 si_core_cflags(si_t *sih, uint32 mask, uint32 val);
 146 extern uint32 si_core_sflags(si_t *sih, uint32 mask, uint32 val);
 147 extern bool si_iscoreup(si_t *sih);
 148 extern uint si_findcoreidx(si_t *sih, uint coreid, uint coreunit);
 149 #ifndef BCMSDIO
 150 extern void *si_setcoreidx(si_t *sih, uint coreidx);
 151 #endif
 152 extern void *si_setcore(si_t *sih, uint coreid, uint coreunit);
 153 extern void *si_switch_core(si_t *sih, uint coreid, uint *origidx,
 154                             uint *intr_val);
 155 extern void si_restore_core(si_t *sih, uint coreid, uint intr_val);
 156 extern void si_core_reset(si_t *sih, uint32 bits, uint32 resetbits);
 157 extern void si_core_disable(si_t *sih, uint32 bits);
 158 extern uint32 si_alp_clock(si_t *sih);
 159 extern uint32 si_ilp_clock(si_t *sih);
 160 extern void si_pci_setup(si_t *sih, uint coremask);
 161 extern void si_setint(si_t *sih, int siflag);
 162 extern bool si_backplane64(si_t *sih);
 163 extern void si_register_intr_callback(si_t *sih, void *intrsoff_fn,
 164                                       void *intrsrestore_fn,
 165                                       void *intrsenabled_fn, void *intr_arg);
 166 extern void si_deregister_intr_callback(si_t *sih);
 167 extern void si_clkctl_init(si_t *sih);
 168 extern u16 si_clkctl_fast_pwrup_delay(si_t *sih);
 169 extern bool si_clkctl_cc(si_t *sih, uint mode);
 170 extern int si_clkctl_xtal(si_t *sih, uint what, bool on);
 171 extern bool si_deviceremoved(si_t *sih);
 172 extern uint32 si_socram_size(si_t *sih);
 173
 174 extern void si_watchdog(si_t *sih, uint ticks);
 175 extern uint32 si_gpiocontrol(si_t *sih, uint32 mask, uint32 val,
 176                              u8 priority);
 177
 178 #ifdef BCMSDIO
 179 extern void si_sdio_init(si_t *sih);
 180 #endif
 181
 182 #define si_eci(sih) 0
 183 #define si_eci_init(sih) (0)
 184 #define si_eci_notify_bt(sih, type, val)  (0)
 185 #define si_seci(sih) 0
 186 static inline void *si_seci_init(si_t *sih, u8 use_seci)
 187 {
 188         return NULL;
 189 }
 190
 191 /* OTP status */
 192 extern bool si_is_otp_disabled(si_t *sih);
 193 extern bool si_is_otp_powered(si_t *sih);
 194 extern void si_otp_power(si_t *sih, bool on);
 195
 196 /* SPROM availability */
 197 extern bool si_is_sprom_available(si_t *sih);
 198 #ifdef SI_SPROM_PROBE
 199 extern void si_sprom_init(si_t *sih);
 200 #endif                          /* SI_SPROM_PROBE */
 201
 202 #define SI_ERROR(args)
 203
 204 #ifdef BCMDBG
 205 #define SI_MSG(args)    printf args
 206 #else
 207 #define SI_MSG(args)
 208 #endif                          /* BCMDBG */
 209
 210 /* Define SI_VMSG to printf for verbose debugging, but don't check it in */
 211 #define SI_VMSG(args)
 212
 213 #define IS_SIM(chippkg) ((chippkg == HDLSIM_PKG_ID) || (chippkg == HWSIM_PKG_ID))
 214
 215 typedef uint32(*si_intrsoff_t) (void *intr_arg);
 216 typedef void (*si_intrsrestore_t) (void *intr_arg, uint32 arg);
 217 typedef bool(*si_intrsenabled_t) (void *intr_arg);
 218
 219 typedef struct gpioh_item {
 220         void *arg;
 221         bool level;
 222         gpio_handler_t handler;
 223         uint32 event;
 224         struct gpioh_item *next;
 225 } gpioh_item_t;
 226
 227 /* misc si info needed by some of the routines */
 228 typedef struct si_info {
 229         struct si_pub pub;      /* back plane public state (must be first field) */
 230         void *osh;              /* osl os handle */
 231         void *sdh;              /* bcmsdh handle */
 232         uint dev_coreid;        /* the core provides driver functions */
 233         void *intr_arg;         /* interrupt callback function arg */
 234         si_intrsoff_t intrsoff_fn;      /* turns chip interrupts off */
 235         si_intrsrestore_t intrsrestore_fn;      /* restore chip interrupts */
 236         si_intrsenabled_t intrsenabled_fn;      /* check if interrupts are enabled */
 237
 238         void *pch;              /* PCI/E core handle */
 239
 240         gpioh_item_t *gpioh_head;       /* GPIO event handlers list */
 241
 242         bool memseg;            /* flag to toggle MEM_SEG register */
 243
 244         char *vars;
 245         uint varsz;
 246
 247         void *curmap;           /* current regs va */
 248         void *regs[SI_MAXCORES];        /* other regs va */
 249
 250         uint curidx;            /* current core index */
 251         uint numcores;          /* # discovered cores */
 252         uint coreid[SI_MAXCORES];       /* id of each core */
 253         uint32 coresba[SI_MAXCORES];    /* backplane address of each core */
 254         void *regs2[SI_MAXCORES];       /* va of each core second register set (usbh20) */
 255         uint32 coresba2[SI_MAXCORES];   /* address of each core second register set (usbh20) */
 256         uint32 coresba_size[SI_MAXCORES];       /* backplane address space size */
 257         uint32 coresba2_size[SI_MAXCORES];      /* second address space size */
 258
 259         void *curwrap;          /* current wrapper va */
 260         void *wrappers[SI_MAXCORES];    /* other cores wrapper va */
 261         uint32 wrapba[SI_MAXCORES];     /* address of controlling wrapper */
 262
 263         uint32 cia[SI_MAXCORES];        /* erom cia entry for each core */
 264         uint32 cib[SI_MAXCORES];        /* erom cia entry for each core */
 265         uint32 oob_router;      /* oob router registers for axi */
 266 } si_info_t;
 267
 268 #define SI_INFO(sih)    (si_info_t *)(uintptr)sih
 269
 270 #define GOODCOREADDR(x, b) (((x) >= (b)) && ((x) < ((b) + SI_MAXCORES * SI_CORE_SIZE)) && \
 271                 ISALIGNED((x), SI_CORE_SIZE))
 272 #define GOODREGS(regs)  ((regs) != NULL && ISALIGNED((uintptr)(regs), SI_CORE_SIZE))
 273 #define BADCOREADDR     0
 274 #define GOODIDX(idx)    (((uint)idx) < SI_MAXCORES)
 275 #define NOREV           -1      /* Invalid rev */
 276
 277 /* Newer chips can access PCI/PCIE and CC core without requiring to change
 278  * PCI BAR0 WIN
 279  */
 280 #define SI_FAST(si) (((si)->pub.buscoretype == PCIE_CORE_ID) || \
 281                      (((si)->pub.buscoretype == PCI_CORE_ID) && (si)->pub.buscorerev >= 13))
 282
 283 #define PCIEREGS(si) (((char *)((si)->curmap) + PCI_16KB0_PCIREGS_OFFSET))
 284 #define CCREGS_FAST(si) (((char *)((si)->curmap) + PCI_16KB0_CCREGS_OFFSET))
 285
 286 /*
 287  * Macros to disable/restore function core(D11, ENET, ILINE20, etc) interrupts
 288  * before after core switching to avoid invalid register accesss inside ISR.
 289  */
 290 #define INTR_OFF(si, intr_val) \
 291         if ((si)->intrsoff_fn && (si)->coreid[(si)->curidx] == (si)->dev_coreid) {      \
 292                 intr_val = (*(si)->intrsoff_fn)((si)->intr_arg); }
 293 #define INTR_RESTORE(si, intr_val) \
 294         if ((si)->intrsrestore_fn && (si)->coreid[(si)->curidx] == (si)->dev_coreid) {  \
 295                 (*(si)->intrsrestore_fn)((si)->intr_arg, intr_val); }
 296
 297 /* dynamic clock control defines */
 298 #define LPOMINFREQ              25000   /* low power oscillator min */
 299 #define LPOMAXFREQ              43000   /* low power oscillator max */
 300 #define XTALMINFREQ             19800000        /* 20 MHz - 1% */
 301 #define XTALMAXFREQ             20200000        /* 20 MHz + 1% */
 302 #define PCIMINFREQ              25000000        /* 25 MHz */
 303 #define PCIMAXFREQ              34000000        /* 33 MHz + fudge */
 304
 305 #define ILP_DIV_5MHZ            0       /* ILP = 5 MHz */
 306 #define ILP_DIV_1MHZ            4       /* ILP = 1 MHz */
 307
 308 #define PCI(si)         ((BUSTYPE((si)->pub.bustype) == PCI_BUS) &&     \
 309                          ((si)->pub.buscoretype == PCI_CORE_ID))
 310 #define PCIE(si)        ((BUSTYPE((si)->pub.bustype) == PCI_BUS) &&     \
 311                          ((si)->pub.buscoretype == PCIE_CORE_ID))
 312 #define PCI_FORCEHT(si) \
 313         (PCIE(si) && (si->pub.chip == BCM4716_CHIP_ID))
 314
 315 /* GPIO Based LED powersave defines */
 316 #define DEFAULT_GPIO_ONTIME     10      /* Default: 10% on */
 317 #define DEFAULT_GPIO_OFFTIME    90      /* Default: 10% on */
 318
 319 #ifndef DEFAULT_GPIOTIMERVAL
 320 #define DEFAULT_GPIOTIMERVAL  ((DEFAULT_GPIO_ONTIME << GPIO_ONTIME_SHIFT) | DEFAULT_GPIO_OFFTIME)
 321 #endif
 322
 323 /*
 324  * Build device path. Path size must be >= SI_DEVPATH_BUFSZ.
 325  * The returned path is NULL terminated and has trailing '/'.
 326  * Return 0 on success, nonzero otherwise.
 327  */
 328 extern int si_devpath(si_t *sih, char *path, int size);
 329 /* Read variable with prepending the devpath to the name */
 330 extern char *si_getdevpathvar(si_t *sih, const char *name);
 331 extern int si_getdevpathintvar(si_t *sih, const char *name);
 332
 333 extern void si_war42780_clkreq(si_t *sih, bool clkreq);
 334 extern void si_pci_sleep(si_t *sih);
 335 extern void si_pci_down(si_t *sih);
 336 extern void si_pci_up(si_t *sih);
 337 extern void si_pcie_extendL1timer(si_t *sih, bool extend);
 338 extern int si_pci_fixcfg(si_t *sih);
 339
 340 extern void si_chipcontrl_epa4331(si_t *sih, bool on);
 341 /* Enable Ex-PA for 4313 */
 342 extern void si_epa_4313war(si_t *sih);
 343
 344 char *si_getnvramflvar(si_t *sih, const char *name);
 345
 346 /* AMBA Interconnect exported externs */
 347 extern si_t *ai_attach(uint pcidev, osl_t *osh, void *regs, uint bustype,
 348                        void *sdh, char **vars, uint *varsz);
 349 extern si_t *ai_kattach(osl_t *osh);
 350 extern void ai_scan(si_t *sih, void *regs, uint devid);
 351
 352 extern uint ai_flag(si_t *sih);
 353 extern void ai_setint(si_t *sih, int siflag);
 354 extern uint ai_coreidx(si_t *sih);
 355 extern uint ai_corevendor(si_t *sih);
 356 extern uint ai_corerev(si_t *sih);
 357 extern bool ai_iscoreup(si_t *sih);
 358 extern void *ai_setcoreidx(si_t *sih, uint coreidx);
 359 extern uint32 ai_core_cflags(si_t *sih, uint32 mask, uint32 val);
 360 extern void ai_core_cflags_wo(si_t *sih, uint32 mask, uint32 val);
 361 extern uint32 ai_core_sflags(si_t *sih, uint32 mask, uint32 val);
 362 extern uint ai_corereg(si_t *sih, uint coreidx, uint regoff, uint mask,
 363                        uint val);
 364 extern void ai_core_reset(si_t *sih, uint32 bits, uint32 resetbits);
 365 extern void ai_core_disable(si_t *sih, uint32 bits);
 366 extern int ai_numaddrspaces(si_t *sih);
 367 extern uint32 ai_addrspace(si_t *sih, uint asidx);
 368 extern uint32 ai_addrspacesize(si_t *sih, uint asidx);
 369 extern void ai_write_wrap_reg(si_t *sih, uint32 offset, uint32 val);
 370
 371 #ifdef BCMSDIO
 372 #define si_setcoreidx(sih, idx) sb_setcoreidx(sih, idx)
 373 #define si_coreid(sih) sb_coreid(sih)
 374 #define si_corerev(sih) sb_corerev(sih)
 375 #endif
 376
 377 #endif                          /* _siutils_h_ */