drivers/net/wireless/brcm80211/brcmsmac/aiutils.h

   1 /*
   2  * Copyright (c) 2011 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 _BRCM_AIUTILS_H_
  18 #define _BRCM_AIUTILS_H_
  19
  20 #include <linux/bcma/bcma.h>
  21
  22 #include "types.h"
  23
  24 /*
  25  * SOC Interconnect Address Map.
  26  * All regions may not exist on all chips.
  27  */
  28 /* each core gets 4Kbytes for registers */
  29 #define SI_CORE_SIZE            0x1000
  30 /*
  31  * Max cores (this is arbitrary, for software
  32  * convenience and could be changed if we
  33  * make any larger chips
  34  */
  35 #define SI_MAXCORES             16
  36
  37 /* Client Mode sb2pcitranslation2 size in bytes */
  38 #define SI_PCI_DMA_SZ           0x40000000
  39
  40 /* PCIE Client Mode sb2pcitranslation2 (2 ZettaBytes), high 32 bits */
  41 #define SI_PCIE_DMA_H32         0x80000000
  42
  43 /* chipcommon being the first core: */
  44 #define SI_CC_IDX               0
  45
  46 /* SOC Interconnect types (aka chip types) */
  47 #define SOCI_AI                 1
  48
  49 /* A register that is common to all cores to
  50  * communicate w/PMU regarding clock control.
  51  */
  52 #define SI_CLK_CTL_ST           0x1e0   /* clock control and status */
  53
  54 /* clk_ctl_st register */
  55 #define CCS_FORCEALP            0x00000001      /* force ALP request */
  56 #define CCS_FORCEHT             0x00000002      /* force HT request */
  57 #define CCS_FORCEILP            0x00000004      /* force ILP request */
  58 #define CCS_ALPAREQ             0x00000008      /* ALP Avail Request */
  59 #define CCS_HTAREQ              0x00000010      /* HT Avail Request */
  60 #define CCS_FORCEHWREQOFF       0x00000020      /* Force HW Clock Request Off */
  61 #define CCS_ERSRC_REQ_MASK      0x00000700      /* external resource requests */
  62 #define CCS_ERSRC_REQ_SHIFT     8
  63 #define CCS_ALPAVAIL            0x00010000      /* ALP is available */
  64 #define CCS_HTAVAIL             0x00020000      /* HT is available */
  65 #define CCS_BP_ON_APL           0x00040000      /* RO: running on ALP clock */
  66 #define CCS_BP_ON_HT            0x00080000      /* RO: running on HT clock */
  67 #define CCS_ERSRC_STS_MASK      0x07000000      /* external resource status */
  68 #define CCS_ERSRC_STS_SHIFT     24
  69
  70 /* HT avail in chipc and pcmcia on 4328a0 */
  71 #define CCS0_HTAVAIL            0x00010000
  72 /* ALP avail in chipc and pcmcia on 4328a0 */
  73 #define CCS0_ALPAVAIL           0x00020000
  74
  75 /* Not really related to SOC Interconnect, but a couple of software
  76  * conventions for the use the flash space:
  77  */
  78
  79 /* Minumum amount of flash we support */
  80 #define FLASH_MIN               0x00020000      /* Minimum flash size */
  81
  82 #define CC_SROM_OTP             0x800   /* SROM/OTP address space */
  83
  84 /* gpiotimerval */
  85 #define GPIO_ONTIME_SHIFT       16
  86
  87 /* Fields in clkdiv */
  88 #define CLKD_OTP                0x000f0000
  89 #define CLKD_OTP_SHIFT          16
  90
  91 /* dynamic clock control defines */
  92 #define LPOMINFREQ              25000   /* low power oscillator min */
  93 #define LPOMAXFREQ              43000   /* low power oscillator max */
  94 #define XTALMINFREQ             19800000        /* 20 MHz - 1% */
  95 #define XTALMAXFREQ             20200000        /* 20 MHz + 1% */
  96 #define PCIMINFREQ              25000000        /* 25 MHz */
  97 #define PCIMAXFREQ              34000000        /* 33 MHz + fudge */
  98
  99 #define ILP_DIV_5MHZ            0       /* ILP = 5 MHz */
 100 #define ILP_DIV_1MHZ            4       /* ILP = 1 MHz */
 101
 102 /* clkctl xtal what flags */
 103 #define XTAL                    0x1     /* primary crystal oscillator (2050) */
 104 #define PLL                     0x2     /* main chip pll */
 105
 106 /* GPIO usage priorities */
 107 #define GPIO_DRV_PRIORITY       0       /* Driver */
 108 #define GPIO_APP_PRIORITY       1       /* Application */
 109 #define GPIO_HI_PRIORITY        2       /* Highest priority. Ignore GPIO
 110                                          * reservation
 111                                          */
 112
 113 /* GPIO pull up/down */
 114 #define GPIO_PULLUP             0
 115 #define GPIO_PULLDN             1
 116
 117 /* GPIO event regtype */
 118 #define GPIO_REGEVT             0       /* GPIO register event */
 119 #define GPIO_REGEVT_INTMSK      1       /* GPIO register event int mask */
 120 #define GPIO_REGEVT_INTPOL      2       /* GPIO register event int polarity */
 121
 122 /* device path */
 123 #define SI_DEVPATH_BUFSZ        16      /* min buffer size in bytes */
 124
 125 /* SI routine enumeration: to be used by update function with multiple hooks */
 126 #define SI_DOATTACH     1
 127 #define SI_PCIDOWN      2
 128 #define SI_PCIUP        3
 129
 130 /*
 131  * Data structure to export all chip specific common variables
 132  *   public (read-only) portion of aiutils handle returned by si_attach()
 133  */
 134 struct si_pub {
 135         int ccrev;              /* chip common core rev */
 136         u32 cccaps;             /* chip common capabilities */
 137         int pmurev;             /* pmu core rev */
 138         u32 pmucaps;            /* pmu capabilities */
 139         uint boardtype;         /* board type */
 140         uint boardvendor;       /* board vendor */
 141         uint chip;              /* chip number */
 142         uint chiprev;           /* chip revision */
 143         uint chippkg;           /* chip package option */
 144 };
 145
 146 struct pci_dev;
 147
 148 struct gpioh_item {
 149         void *arg;
 150         bool level;
 151         void (*handler) (u32 stat, void *arg);
 152         u32 event;
 153         struct gpioh_item *next;
 154 };
 155
 156 /* misc si info needed by some of the routines */
 157 struct si_info {
 158         struct si_pub pub;      /* back plane public state (must be first) */
 159         struct bcma_bus *icbus; /* handle to soc interconnect bus */
 160         struct pci_dev *pcibus; /* handle to pci bus */
 161
 162         u32 chipst;             /* chip status */
 163 };
 164
 165 /*
 166  * Many of the routines below take an 'sih' handle as their first arg.
 167  * Allocate this by calling si_attach().  Free it by calling si_detach().
 168  * At any one time, the sih is logically focused on one particular si core
 169  * (the "current core").
 170  * Use si_setcore() or si_setcoreidx() to change the association to another core
 171  */
 172
 173
 174 /* AMBA Interconnect exported externs */
 175 extern u32 ai_core_cflags(struct bcma_device *core, u32 mask, u32 val);
 176
 177 /* === exported functions === */
 178 extern struct si_pub *ai_attach(struct bcma_bus *pbus);
 179 extern void ai_detach(struct si_pub *sih);
 180 extern uint ai_cc_reg(struct si_pub *sih, uint regoff, u32 mask, u32 val);
 181 extern void ai_clkctl_init(struct si_pub *sih);
 182 extern u16 ai_clkctl_fast_pwrup_delay(struct si_pub *sih);
 183 extern bool ai_clkctl_cc(struct si_pub *sih, enum bcma_clkmode mode);
 184 extern bool ai_deviceremoved(struct si_pub *sih);
 185
 186 /* Enable Ex-PA for 4313 */
 187 extern void ai_epa_4313war(struct si_pub *sih);
 188
 189 static inline u32 ai_get_cccaps(struct si_pub *sih)
 190 {
 191         return sih->cccaps;
 192 }
 193
 194 static inline int ai_get_pmurev(struct si_pub *sih)
 195 {
 196         return sih->pmurev;
 197 }
 198
 199 static inline u32 ai_get_pmucaps(struct si_pub *sih)
 200 {
 201         return sih->pmucaps;
 202 }
 203
 204 static inline uint ai_get_boardtype(struct si_pub *sih)
 205 {
 206         return sih->boardtype;
 207 }
 208
 209 static inline uint ai_get_boardvendor(struct si_pub *sih)
 210 {
 211         return sih->boardvendor;
 212 }
 213
 214 static inline uint ai_get_chip_id(struct si_pub *sih)
 215 {
 216         return sih->chip;
 217 }
 218
 219 static inline uint ai_get_chiprev(struct si_pub *sih)
 220 {
 221         return sih->chiprev;
 222 }
 223
 224 static inline uint ai_get_chippkg(struct si_pub *sih)
 225 {
 226         return sih->chippkg;
 227 }
 228
 229 #endif                          /* _BRCM_AIUTILS_H_ */