include/linux/nubus.h

   1 /*
   2   nubus.h: various definitions and prototypes for NuBus drivers to use.
   3
   4   Originally written by Alan Cox.
   5
   6   Hacked to death by C. Scott Ananian and David Huggins-Daines.
   7
   8   Some of the constants in here are from the corresponding
   9   NetBSD/OpenBSD header file, by Allen Briggs.  We figured out the
  10   rest of them on our own. */
  11
  12 #ifndef LINUX_NUBUS_H
  13 #define LINUX_NUBUS_H
  14
  15 #include <linux/types.h>
  16 #ifdef __KERNEL__
  17 #include <asm/nubus.h>
  18 #endif
  19
  20 enum nubus_category {
  21         NUBUS_CAT_BOARD          = 0x0001,
  22         NUBUS_CAT_DISPLAY        = 0x0003,
  23         NUBUS_CAT_NETWORK        = 0x0004,
  24         NUBUS_CAT_COMMUNICATIONS = 0x0006,
  25         NUBUS_CAT_FONT           = 0x0009,
  26         NUBUS_CAT_CPU            = 0x000A,
  27         /* For lack of a better name */
  28         NUBUS_CAT_DUODOCK        = 0x0020
  29 };
  30
  31 enum nubus_type_network {
  32         NUBUS_TYPE_ETHERNET      = 0x0001,
  33         NUBUS_TYPE_RS232         = 0x0002
  34 };
  35
  36 enum nubus_type_display {
  37         NUBUS_TYPE_VIDEO         = 0x0001
  38 };
  39
  40 enum nubus_type_cpu {
  41         NUBUS_TYPE_68020         = 0x0003,
  42         NUBUS_TYPE_68030         = 0x0004,
  43         NUBUS_TYPE_68040         = 0x0005
  44 };
  45
  46 /* Known <Cat,Type,SW,HW> tuples: (according to TattleTech and Slots)
  47  *  68030 motherboards: <10,4,0,24>
  48  *  68040 motherboards: <10,5,0,24>
  49  *  DuoDock Plus: <32,1,1,2>
  50  *
  51  *  Toby Frame Buffer card: <3,1,1,1>
  52  *  RBV built-in video (IIci): <3,1,1,24>
  53  *  Valkyrie built-in video (Q630): <3,1,1,46>
  54  *  Macintosh Display Card: <3,1,1,25>
  55  *  Sonora built-in video (P460): <3,1,1,34>
  56  *  Jet framebuffer (DuoDock Plus): <3,1,1,41>
  57  *
  58  *  SONIC comm-slot/on-board and DuoDock Ethernet: <4,1,1,272>
  59  *  SONIC LC-PDS Ethernet (Dayna, but like Apple 16-bit, sort of): <4,1,1,271>
  60  *  Apple SONIC LC-PDS Ethernet ("Apple Ethernet LC Twisted-Pair Card"): <4,1,0,281>
  61  *  Sonic Systems Ethernet A-Series Card: <4,1,268,256>
  62  *  Asante MacCon NuBus-A: <4,1,260,256> (alpha-1.0,1.1 revision)
  63  *   ROM on the above card: <2,1,0,0>
  64  *  Cabletron ethernet card: <4,1,1,265>
  65  *  Farallon ethernet card: <4,1,268,256> (identical to Sonic Systems card)
  66  *  Kinetics EtherPort IIN: <4,1,259,262>
  67  *  API Engineering EtherRun_LCa PDS enet card: <4,1,282,256>
  68  *
  69  *  Add your devices to the list!  You can obtain the "Slots" utility
  70  *  from Apple's FTP site at:
  71  *  ftp://dev.apple.com/devworld/Tool_Chest/Devices_-_Hardware/NuBus_Slot_Manager/
  72  *
  73  *  Alternately, TattleTech can be found at any Info-Mac mirror site.
  74  *  or from its distribution site: ftp://ftp.decismkr.com/dms
  75  */
  76
  77 /* DrSW: Uniquely identifies the software interface to a board.  This
  78    is usually the one you want to look at when writing a driver.  It's
  79    not as useful as you think, though, because as we should know by
  80    now (duh), "Apple Compatible" can mean a lot of things... */
  81
  82 /* Add known DrSW values here */
  83 enum nubus_drsw {
  84         /* NUBUS_CAT_DISPLAY */
  85         NUBUS_DRSW_APPLE        = 0x0001,
  86         NUBUS_DRSW_APPLE_HIRES  = 0x0013, /* MacII HiRes card driver */
  87
  88         /* NUBUS_CAT_NETWORK */
  89         NUBUS_DRSW_3COM         = 0x0000,
  90         NUBUS_DRSW_CABLETRON    = 0x0001,
  91         NUBUS_DRSW_SONIC_LC     = 0x0001,
  92         NUBUS_DRSW_KINETICS     = 0x0103,
  93         NUBUS_DRSW_ASANTE       = 0x0104,
  94         NUBUS_DRSW_TECHWORKS    = 0x0109,
  95         NUBUS_DRSW_DAYNA        = 0x010b,
  96         NUBUS_DRSW_FARALLON     = 0x010c,
  97         NUBUS_DRSW_APPLE_SN     = 0x010f,
  98         NUBUS_DRSW_DAYNA2       = 0x0115,
  99         NUBUS_DRSW_FOCUS        = 0x011a,
 100         NUBUS_DRSW_ASANTE_CS    = 0x011d, /* use asante SMC9194 driver */
 101         NUBUS_DRSW_DAYNA_LC     = 0x011e,
 102
 103         /* NUBUS_CAT_CPU */
 104         NUBUS_DRSW_NONE         = 0x0000,
 105 };
 106
 107 /* DrHW: Uniquely identifies the hardware interface to a board (or at
 108    least, it should...  some video cards are known to incorrectly
 109    identify themselves as Toby cards) */
 110
 111 /* Add known DrHW values here */
 112 enum nubus_drhw {
 113         /* NUBUS_CAT_DISPLAY */
 114         NUBUS_DRHW_APPLE_TFB      = 0x0001, /* Toby frame buffer card */
 115         NUBUS_DRHW_APPLE_WVC      = 0x0006, /* Apple Workstation Video Card */
 116         NUBUS_DRHW_SIGMA_CLRMAX   = 0x0007, /* Sigma Design ColorMax */
 117         NUBUS_DRHW_APPLE_SE30     = 0x0009, /* Apple SE/30 video */
 118         NUBUS_DRHW_APPLE_HRVC     = 0x0013, /* Mac II High-Res Video Card */
 119         NUBUS_DRHW_APPLE_PVC      = 0x0017, /* Mac II Portrait Video Card */
 120         NUBUS_DRHW_APPLE_RBV1     = 0x0018, /* IIci RBV video */
 121         NUBUS_DRHW_APPLE_MDC      = 0x0019, /* Macintosh Display Card */
 122         NUBUS_DRHW_APPLE_SONORA   = 0x0022, /* Sonora built-in video */
 123         NUBUS_DRHW_APPLE_24AC     = 0x002b, /* Mac 24AC Video Card */
 124         NUBUS_DRHW_APPLE_VALKYRIE = 0x002e,
 125         NUBUS_DRHW_APPLE_JET      = 0x0029, /* Jet framebuffer (DuoDock) */
 126         NUBUS_DRHW_SMAC_GFX       = 0x0105, /* SuperMac GFX */
 127         NUBUS_DRHW_RASTER_CB264   = 0x013B, /* RasterOps ColorBoard 264 */
 128         NUBUS_DRHW_MICRON_XCEED   = 0x0146, /* Micron Exceed color */
 129         NUBUS_DRHW_RDIUS_GSC      = 0x0153, /* Radius GS/C */
 130         NUBUS_DRHW_SMAC_SPEC8     = 0x017B, /* SuperMac Spectrum/8 */
 131         NUBUS_DRHW_SMAC_SPEC24    = 0x017C, /* SuperMac Spectrum/24 */
 132         NUBUS_DRHW_RASTER_CB364   = 0x026F, /* RasterOps ColorBoard 364 */
 133         NUBUS_DRHW_RDIUS_DCGX     = 0x027C, /* Radius DirectColor/GX */
 134         NUBUS_DRHW_RDIUS_PC8      = 0x0291, /* Radius PrecisionColor 8 */
 135         NUBUS_DRHW_LAPIS_PCS8     = 0x0292, /* Lapis ProColorServer 8 */
 136         NUBUS_DRHW_RASTER_24XLI   = 0x02A0, /* RasterOps 8/24 XLi */
 137         NUBUS_DRHW_RASTER_PBPGT   = 0x02A5, /* RasterOps PaintBoard Prism GT */
 138         NUBUS_DRHW_EMACH_FSX      = 0x02AE, /* E-Machines Futura SX */
 139         NUBUS_DRHW_RASTER_24XLTV  = 0x02B7, /* RasterOps 24XLTV */
 140         NUBUS_DRHW_SMAC_THUND24   = 0x02CB, /* SuperMac Thunder/24 */
 141         NUBUS_DRHW_SMAC_THUNDLGHT = 0x03D9, /* SuperMac ThunderLight */
 142         NUBUS_DRHW_RDIUS_PC24XP   = 0x0406, /* Radius PrecisionColor 24Xp */
 143         NUBUS_DRHW_RDIUS_PC24X    = 0x040A, /* Radius PrecisionColor 24X */
 144         NUBUS_DRHW_RDIUS_PC8XJ    = 0x040B, /* Radius PrecisionColor 8XJ */
 145
 146         /* NUBUS_CAT_NETWORK */
 147         NUBUS_DRHW_INTERLAN       = 0x0100,
 148         NUBUS_DRHW_SMC9194        = 0x0101,
 149         NUBUS_DRHW_KINETICS       = 0x0106,
 150         NUBUS_DRHW_CABLETRON      = 0x0109,
 151         NUBUS_DRHW_ASANTE_LC      = 0x010f,
 152         NUBUS_DRHW_SONIC          = 0x0110,
 153         NUBUS_DRHW_TECHWORKS      = 0x0112,
 154         NUBUS_DRHW_APPLE_SONIC_NB = 0x0118,
 155         NUBUS_DRHW_APPLE_SONIC_LC = 0x0119,
 156         NUBUS_DRHW_FOCUS          = 0x011c,
 157         NUBUS_DRHW_SONNET         = 0x011d,
 158 };
 159
 160 /* Resource IDs: These are the identifiers for the various weird and
 161    wonderful tidbits of information that may or may not reside in the
 162    NuBus ROM directory. */
 163 enum nubus_res_id {
 164         NUBUS_RESID_TYPE         = 0x0001,
 165         NUBUS_RESID_NAME         = 0x0002,
 166         NUBUS_RESID_ICON         = 0x0003,
 167         NUBUS_RESID_DRVRDIR      = 0x0004,
 168         NUBUS_RESID_LOADREC      = 0x0005,
 169         NUBUS_RESID_BOOTREC      = 0x0006,
 170         NUBUS_RESID_FLAGS        = 0x0007,
 171         NUBUS_RESID_HWDEVID      = 0x0008,
 172         NUBUS_RESID_MINOR_BASEOS = 0x000a,
 173         NUBUS_RESID_MINOR_LENGTH = 0x000b,
 174         NUBUS_RESID_MAJOR_BASEOS = 0x000c,
 175         NUBUS_RESID_MAJOR_LENGTH = 0x000d,
 176         NUBUS_RESID_CICN         = 0x000f,
 177         NUBUS_RESID_ICL8         = 0x0010,
 178         NUBUS_RESID_ICL4         = 0x0011,
 179 };
 180
 181 /* Category-specific resources. */
 182 enum nubus_board_res_id {
 183         NUBUS_RESID_BOARDID      = 0x0020,
 184         NUBUS_RESID_PRAMINITDATA = 0x0021,
 185         NUBUS_RESID_PRIMARYINIT  = 0x0022,
 186         NUBUS_RESID_TIMEOUTCONST = 0x0023,
 187         NUBUS_RESID_VENDORINFO   = 0x0024,
 188         NUBUS_RESID_BOARDFLAGS   = 0x0025,
 189         NUBUS_RESID_SECONDINIT   = 0x0026,
 190
 191         /* Not sure why Apple put these next two in here */
 192         NUBUS_RESID_VIDNAMES     = 0x0041,
 193         NUBUS_RESID_VIDMODES     = 0x007e
 194 };
 195
 196 /* Fields within the vendor info directory */
 197 enum nubus_vendor_res_id {
 198         NUBUS_RESID_VEND_ID     = 0x0001,
 199         NUBUS_RESID_VEND_SERIAL = 0x0002,
 200         NUBUS_RESID_VEND_REV    = 0x0003,
 201         NUBUS_RESID_VEND_PART   = 0x0004,
 202         NUBUS_RESID_VEND_DATE   = 0x0005
 203 };
 204
 205 enum nubus_net_res_id {
 206         NUBUS_RESID_MAC_ADDRESS  = 0x0080
 207 };
 208
 209 enum nubus_cpu_res_id {
 210         NUBUS_RESID_MEMINFO      = 0x0081,
 211         NUBUS_RESID_ROMINFO      = 0x0082
 212 };
 213
 214 enum nubus_display_res_id {
 215         NUBUS_RESID_GAMMADIR    = 0x0040,
 216         NUBUS_RESID_FIRSTMODE   = 0x0080,
 217         NUBUS_RESID_SECONDMODE  = 0x0081,
 218         NUBUS_RESID_THIRDMODE   = 0x0082,
 219         NUBUS_RESID_FOURTHMODE  = 0x0083,
 220         NUBUS_RESID_FIFTHMODE   = 0x0084,
 221         NUBUS_RESID_SIXTHMODE   = 0x0085
 222 };
 223
 224 struct nubus_dir
 225 {
 226         unsigned char *base;
 227         unsigned char *ptr;
 228         int done;
 229         int mask;
 230 };
 231
 232 struct nubus_dirent
 233 {
 234         unsigned char *base;
 235         unsigned char type;
 236         __u32 data;     /* Actually 24bits used */
 237         int mask;
 238 };
 239
 240 #ifdef __KERNEL__
 241 struct nubus_board {
 242         struct nubus_board* next;
 243         struct nubus_dev* first_dev;
 244
 245         /* Only 9-E actually exist, though 0-8 are also theoretically
 246            possible, and 0 is a special case which represents the
 247            motherboard and onboard peripherals (Ethernet, video) */
 248         int slot;
 249         /* For slot 0, this is bogus. */
 250         char name[64];
 251
 252         /* Format block */
 253         unsigned char* fblock;
 254         /* Root directory (does *not* always equal fblock + doffset!) */
 255         unsigned char* directory;
 256
 257         unsigned long slot_addr;
 258         /* Offset to root directory (sometimes) */
 259         unsigned long doffset;
 260         /* Length over which to compute the crc */
 261         unsigned long rom_length;
 262         /* Completely useless most of the time */
 263         unsigned long crc;
 264         unsigned char rev;
 265         unsigned char format;
 266         unsigned char lanes;
 267 };
 268
 269 struct nubus_dev {
 270         /* Next link in device list */
 271         struct nubus_dev* next;
 272         /* Directory entry in /proc/bus/nubus */
 273         struct proc_dir_entry* procdir;
 274
 275         /* The functional resource ID of this device */
 276         unsigned char resid;
 277         /* These are mostly here for convenience; we could always read
 278            them from the ROMs if we wanted to */
 279         unsigned short category;
 280         unsigned short type;
 281         unsigned short dr_sw;
 282         unsigned short dr_hw;
 283         /* This is the device's name rather than the board's.
 284            Sometimes they are different.  Usually the board name is
 285            more correct. */
 286         char name[64];
 287         /* MacOS driver (I kid you not) */
 288         unsigned char* driver;
 289         /* Actually this is an offset */
 290         unsigned long iobase;
 291         unsigned long iosize;
 292         unsigned char flags, hwdevid;
 293
 294         /* Functional directory */
 295         unsigned char* directory;
 296         /* Much of our info comes from here */
 297         struct nubus_board* board;
 298 };
 299
 300 /* This is all NuBus devices (used to find devices later on) */
 301 extern struct nubus_dev* nubus_devices;
 302 /* This is all NuBus cards */
 303 extern struct nubus_board* nubus_boards;
 304
 305 /* Generic NuBus interface functions, modelled after the PCI interface */
 306 void nubus_scan_bus(void);
 307 extern void nubus_proc_init(void);
 308 int get_nubus_list(char *buf);
 309 int nubus_proc_attach_device(struct nubus_dev *dev);
 310 int nubus_proc_detach_device(struct nubus_dev *dev);
 311 /* If we need more precision we can add some more of these */
 312 struct nubus_dev* nubus_find_device(unsigned short category,
 313                                     unsigned short type,
 314                                     unsigned short dr_hw,
 315                                     unsigned short dr_sw,
 316                                     const struct nubus_dev* from);
 317 struct nubus_dev* nubus_find_type(unsigned short category,
 318                                   unsigned short type,
 319                                   const struct nubus_dev* from);
 320 /* Might have more than one device in a slot, you know... */
 321 struct nubus_dev* nubus_find_slot(unsigned int slot,
 322                                   const struct nubus_dev* from);
 323
 324 /* These are somewhat more NuBus-specific.  They all return 0 for
 325    success and -1 for failure, as you'd expect. */
 326
 327 /* The root directory which contains the board and functional
 328    directories */
 329 int nubus_get_root_dir(const struct nubus_board* board,
 330                        struct nubus_dir* dir);
 331 /* The board directory */
 332 int nubus_get_board_dir(const struct nubus_board* board,
 333                         struct nubus_dir* dir);
 334 /* The functional directory */
 335 int nubus_get_func_dir(const struct nubus_dev* dev,
 336                        struct nubus_dir* dir);
 337
 338 /* These work on any directory gotten via the above */
 339 int nubus_readdir(struct nubus_dir* dir,
 340                   struct nubus_dirent* ent);
 341 int nubus_find_rsrc(struct nubus_dir* dir,
 342                     unsigned char rsrc_type,
 343                     struct nubus_dirent* ent);
 344 int nubus_rewinddir(struct nubus_dir* dir);
 345
 346 /* Things to do with directory entries */
 347 int nubus_get_subdir(const struct nubus_dirent* ent,
 348                      struct nubus_dir* dir);
 349 void nubus_get_rsrc_mem(void* dest,
 350                         const struct nubus_dirent *dirent,
 351                         int len);
 352 void nubus_get_rsrc_str(void* dest,
 353                         const struct nubus_dirent *dirent,
 354                         int maxlen);
 355 #endif /* __KERNEL__ */
 356
 357 /* We'd like to get rid of this eventually.  Only daynaport.c uses it now. */
 358 static inline void *nubus_slot_addr(int slot)
 359 {
 360         return (void *)(0xF0000000|(slot<<24));
 361 }
 362
 363 #endif /* LINUX_NUBUS_H */