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 #ifdef __KERNEL__
  16 #include <asm/nubus.h>
  17 #endif
  18
  19 enum nubus_category {
  20         NUBUS_CAT_BOARD          = 0x0001,
  21         NUBUS_CAT_DISPLAY        = 0x0003,
  22         NUBUS_CAT_NETWORK        = 0x0004,
  23         NUBUS_CAT_COMMUNICATIONS = 0x0006,
  24         NUBUS_CAT_FONT           = 0x0009,
  25         NUBUS_CAT_CPU            = 0x000A,
  26         /* For lack of a better name */
  27         NUBUS_CAT_DUODOCK        = 0x0020
  28 };
  29
  30 enum nubus_type_network {
  31         NUBUS_TYPE_ETHERNET      = 0x0001,
  32         NUBUS_TYPE_RS232         = 0x0002
  33 };
  34
  35 enum nubus_type_display {
  36         NUBUS_TYPE_VIDEO         = 0x0001
  37 };
  38
  39 enum nubus_type_cpu {
  40         NUBUS_TYPE_68020         = 0x0003,
  41         NUBUS_TYPE_68030         = 0x0004,
  42         NUBUS_TYPE_68040         = 0x0005
  43 };
  44
  45 /* Known <Cat,Type,SW,HW> tuples: (according to TattleTech and Slots)
  46  *  68030 motherboards: <10,4,0,24>
  47  *  68040 motherboards: <10,5,0,24>
  48  *  DuoDock Plus: <32,1,1,2>
  49  *
  50  *  Toby Frame Buffer card: <3,1,1,1>
  51  *  RBV built-in video (IIci): <3,1,1,24>
  52  *  Valkyrie built-in video (Q630): <3,1,1,46>
  53  *  Macintosh Display Card: <3,1,1,25>
  54  *  Sonora built-in video (P460): <3,1,1,34>
  55  *  Jet framebuffer (DuoDock Plus): <3,1,1,41>
  56  *
  57  *  SONIC comm-slot/on-board and DuoDock Ethernet: <4,1,1,272>
  58  *  SONIC LC-PDS Ethernet (Dayna, but like Apple 16-bit, sort of): <4,1,1,271>
  59  *  Sonic Systems Ethernet A-Series Card: <4,1,268,256>
  60  *  Asante MacCon NuBus-A: <4,1,260,256> (alpha-1.0,1.1 revision)
  61  *   ROM on the above card: <2,1,0,0>
  62  *  Cabletron ethernet card: <4,1,1,265>
  63  *  Farallon ethernet card: <4,1,268,256> (identical to Sonic Systems card)
  64  *  Kinetics EtherPort IIN: <4,1,259,262>
  65  *  API Engineering EtherRun_LCa PDS enet card: <4,1,282,256>
  66  *
  67  *  Add your devices to the list!  You can obtain the "Slots" utility
  68  *  from Apple's FTP site at:
  69  *  ftp://dev.apple.com/devworld/Tool_Chest/Devices_-_Hardware/NuBus_Slot_Manager/
  70  *
  71  *  Alternately, TattleTech can be found at any Info-Mac mirror site.
  72  *  or from its distribution site: ftp://ftp.decismkr.com/dms
  73  */
  74
  75 /* DrSW: Uniquely identifies the software interface to a board.  This
  76    is usually the one you want to look at when writing a driver.  It's
  77    not as useful as you think, though, because as we should know by
  78    now (duh), "Apple Compatible" can mean a lot of things... */
  79
  80 /* Add known DrSW values here */
  81 enum nubus_drsw {
  82         /* NUBUS_CAT_DISPLAY */
  83         NUBUS_DRSW_APPLE        = 0x0001,
  84         NUBUS_DRSW_APPLE_HIRES  = 0x0013, /* MacII HiRes card driver */
  85
  86         /* NUBUS_CAT_NETWORK */
  87         NUBUS_DRSW_CABLETRON    = 0x0001,
  88         NUBUS_DRSW_SONIC_LC     = 0x0001,
  89         NUBUS_DRSW_KINETICS     = 0x0103,
  90         NUBUS_DRSW_ASANTE       = 0x0104,
  91         NUBUS_DRSW_DAYNA        = 0x010b,
  92         NUBUS_DRSW_FARALLON     = 0x010c,
  93         NUBUS_DRSW_APPLE_SN     = 0x010f,
  94         NUBUS_DRSW_DAYNA2       = 0x0115,
  95         NUBUS_DRSW_FOCUS        = 0x011a,
  96         NUBUS_DRSW_ASANTE_CS    = 0x011d, /* use asante SMC9194 driver */
  97         NUBUS_DRSW_DAYNA_LC     = 0x011e,
  98
  99         /* NUBUS_CAT_CPU */
 100         NUBUS_DRSW_NONE         = 0x0000,
 101 };
 102
 103 /* DrHW: Uniquely identifies the hardware interface to a board (or at
 104    least, it should...  some video cards are known to incorrectly
 105    identify themselves as Toby cards) */
 106
 107 /* Add known DrHW values here */
 108 enum nubus_drhw {
 109         /* NUBUS_CAT_DISPLAY */
 110         NUBUS_DRHW_APPLE_TFB    = 0x0001, /* Toby frame buffer card */
 111         NUBUS_DRHW_APPLE_HRVC   = 0x0013, /* Mac II High Res Video card */
 112         NUBUS_DRHW_APPLE_RBV1   = 0x0018, /* IIci RBV video */
 113         NUBUS_DRHW_APPLE_MDC    = 0x0019, /* Macintosh Display Card */
 114         NUBUS_DRHW_APPLE_SONORA = 0x0022, /* Sonora built-in video */
 115         NUBUS_DRHW_APPLE_JET    = 0x0029, /* Jet framebuffer (DuoDock) */
 116         NUBUS_DRHW_APPLE_VALKYRIE = 0x002e,
 117         NUBUS_DRHW_THUNDER24    = 0x02cb, /* SuperMac Thunder/24 */
 118
 119         /* NUBUS_CAT_NETWORK */
 120         NUBUS_DRHW_INTERLAN     = 0x0100,
 121         NUBUS_DRHW_SMC9194      = 0x0101,
 122         NUBUS_DRHW_KINETICS     = 0x0106,
 123         NUBUS_DRHW_CABLETRON    = 0x0109,
 124         NUBUS_DRHW_ASANTE_LC    = 0x010f,
 125         NUBUS_DRHW_SONIC        = 0x0110,
 126         NUBUS_DRHW_SONIC_NB     = 0x0118,
 127         NUBUS_DRHW_SONIC_LC     = 0x0119,
 128
 129         /* NUBUS_CAT_COMMUNICATIONS */
 130         NUBUS_DRHW_DOVEFAX      = 0x0100,
 131 };
 132
 133 /* Resource IDs: These are the identifiers for the various weird and
 134    wonderful tidbits of information that may or may not reside in the
 135    NuBus ROM directory. */
 136 enum nubus_res_id {
 137         NUBUS_RESID_TYPE         = 0x0001,
 138         NUBUS_RESID_NAME         = 0x0002,
 139         NUBUS_RESID_ICON         = 0x0003,
 140         NUBUS_RESID_DRVRDIR      = 0x0004,
 141         NUBUS_RESID_LOADREC      = 0x0005,
 142         NUBUS_RESID_BOOTREC      = 0x0006,
 143         NUBUS_RESID_FLAGS        = 0x0007,
 144         NUBUS_RESID_HWDEVID      = 0x0008,
 145         NUBUS_RESID_MINOR_BASEOS = 0x000a,
 146         NUBUS_RESID_MINOR_LENGTH = 0x000b,
 147         NUBUS_RESID_MAJOR_BASEOS = 0x000c,
 148         NUBUS_RESID_MAJOR_LENGTH = 0x000d,
 149         NUBUS_RESID_CICN         = 0x000f,
 150         NUBUS_RESID_ICL8         = 0x0010,
 151         NUBUS_RESID_ICL4         = 0x0011,
 152 };
 153
 154 /* Category-specific resources. */
 155 enum nubus_board_res_id {
 156         NUBUS_RESID_BOARDID      = 0x0020,
 157         NUBUS_RESID_PRAMINITDATA = 0x0021,
 158         NUBUS_RESID_PRIMARYINIT  = 0x0022,
 159         NUBUS_RESID_TIMEOUTCONST = 0x0023,
 160         NUBUS_RESID_VENDORINFO   = 0x0024,
 161         NUBUS_RESID_BOARDFLAGS   = 0x0025,
 162         NUBUS_RESID_SECONDINIT   = 0x0026,
 163
 164         /* Not sure why Apple put these next two in here */
 165         NUBUS_RESID_VIDNAMES     = 0x0041,
 166         NUBUS_RESID_VIDMODES     = 0x007e
 167 };
 168
 169 /* Fields within the vendor info directory */
 170 enum nubus_vendor_res_id {
 171         NUBUS_RESID_VEND_ID     = 0x0001,
 172         NUBUS_RESID_VEND_SERIAL = 0x0002,
 173         NUBUS_RESID_VEND_REV    = 0x0003,
 174         NUBUS_RESID_VEND_PART   = 0x0004,
 175         NUBUS_RESID_VEND_DATE   = 0x0005
 176 };
 177
 178 enum nubus_net_res_id {
 179         NUBUS_RESID_MAC_ADDRESS  = 0x0080
 180 };
 181
 182 enum nubus_cpu_res_id {
 183         NUBUS_RESID_MEMINFO      = 0x0081,
 184         NUBUS_RESID_ROMINFO      = 0x0082
 185 };
 186
 187 enum nubus_display_res_id {
 188         NUBUS_RESID_GAMMADIR    = 0x0040,
 189         NUBUS_RESID_FIRSTMODE   = 0x0080,
 190         NUBUS_RESID_SECONDMODE  = 0x0081,
 191         NUBUS_RESID_THIRDMODE   = 0x0082,
 192         NUBUS_RESID_FOURTHMODE  = 0x0083,
 193         NUBUS_RESID_FIFTHMODE   = 0x0084,
 194         NUBUS_RESID_SIXTHMODE   = 0x0085
 195 };
 196
 197 struct nubus_dir
 198 {
 199         unsigned char *base;
 200         unsigned char *ptr;
 201         int done;
 202         int mask;
 203 };
 204
 205 struct nubus_dirent
 206 {
 207         unsigned char *base;
 208         unsigned char type;
 209         __u32 data;     /* Actually 24bits used */
 210         int mask;
 211 };
 212
 213 struct nubus_board {
 214         struct nubus_board* next;
 215         struct nubus_dev* first_dev;
 216
 217         /* Only 9-E actually exist, though 0-8 are also theoretically
 218            possible, and 0 is a special case which represents the
 219            motherboard and onboard peripherals (Ethernet, video) */
 220         int slot;
 221         /* For slot 0, this is bogus. */
 222         char name[64];
 223
 224         /* Format block */
 225         unsigned char* fblock;
 226         /* Root directory (does *not* always equal fblock + doffset!) */
 227         unsigned char* directory;
 228
 229         unsigned long slot_addr;
 230         /* Offset to root directory (sometimes) */
 231         unsigned long doffset;
 232         /* Length over which to compute the crc */
 233         unsigned long rom_length;
 234         /* Completely useless most of the time */
 235         unsigned long crc;
 236         unsigned char rev;
 237         unsigned char format;
 238         unsigned char lanes;
 239 };
 240
 241 struct nubus_dev {
 242         /* Next link in device list */
 243         struct nubus_dev* next;
 244         /* Directory entry in /proc/bus/nubus */
 245         struct proc_dir_entry* procdir;
 246
 247         /* The functional resource ID of this device */
 248         unsigned char resid;
 249         /* These are mostly here for convenience; we could always read
 250            them from the ROMs if we wanted to */
 251         unsigned short category;
 252         unsigned short type;
 253         unsigned short dr_sw;
 254         unsigned short dr_hw;
 255         /* This is the device's name rather than the board's.
 256            Sometimes they are different.  Usually the board name is
 257            more correct. */
 258         char name[64];
 259         /* MacOS driver (I kid you not) */
 260         unsigned char* driver;
 261         /* Actually this is an offset */
 262         unsigned long iobase;
 263         unsigned long iosize;
 264         unsigned char flags, hwdevid;
 265
 266         /* Functional directory */
 267         unsigned char* directory;
 268         /* Much of our info comes from here */
 269         struct nubus_board* board;
 270 };
 271
 272 /* This is all NuBus devices (used to find devices later on) */
 273 extern struct nubus_dev* nubus_devices;
 274 /* This is all NuBus cards */
 275 extern struct nubus_board* nubus_boards;
 276
 277 /* Generic NuBus interface functions, modelled after the PCI interface */
 278 void nubus_scan_bus(void);
 279 extern void nubus_proc_init(void);
 280 int get_nubus_list(char *buf);
 281 int nubus_proc_attach_device(struct nubus_dev *dev);
 282 int nubus_proc_detach_device(struct nubus_dev *dev);
 283 /* If we need more precision we can add some more of these */
 284 struct nubus_dev* nubus_find_device(unsigned short category,
 285                                     unsigned short type,
 286                                     unsigned short dr_hw,
 287                                     unsigned short dr_sw,
 288                                     const struct nubus_dev* from);
 289 struct nubus_dev* nubus_find_type(unsigned short category,
 290                                   unsigned short type,
 291                                   const struct nubus_dev* from);
 292 /* Might have more than one device in a slot, you know... */
 293 struct nubus_dev* nubus_find_slot(unsigned int slot,
 294                                   const struct nubus_dev* from);
 295
 296 /* These are somewhat more NuBus-specific.  They all return 0 for
 297    success and -1 for failure, as you'd expect. */
 298
 299 /* The root directory which contains the board and functional
 300    directories */
 301 int nubus_get_root_dir(const struct nubus_board* board,
 302                        struct nubus_dir* dir);
 303 /* The board directory */
 304 int nubus_get_board_dir(const struct nubus_board* board,
 305                         struct nubus_dir* dir);
 306 /* The functional directory */
 307 int nubus_get_func_dir(const struct nubus_dev* dev,
 308                        struct nubus_dir* dir);
 309
 310 /* These work on any directory gotten via the above */
 311 int nubus_readdir(struct nubus_dir* dir,
 312                   struct nubus_dirent* ent);
 313 int nubus_find_rsrc(struct nubus_dir* dir,
 314                     unsigned char rsrc_type,
 315                     struct nubus_dirent* ent);
 316 int nubus_rewinddir(struct nubus_dir* dir);
 317
 318 /* Things to do with directory entries */
 319 int nubus_get_subdir(const struct nubus_dirent* ent,
 320                      struct nubus_dir* dir);
 321 void nubus_get_rsrc_mem(void* dest,
 322                         const struct nubus_dirent *dirent,
 323                         int len);
 324 void nubus_get_rsrc_str(void* dest,
 325                         const struct nubus_dirent *dirent,
 326                         int maxlen);
 327
 328 /* We'd like to get rid of this eventually.  Only daynaport.c uses it now. */
 329 static inline void *nubus_slot_addr(int slot)
 330 {
 331         return (void *)(0xF0000000|(slot<<24));
 332 }
 333
 334 #endif /* LINUX_NUBUS_H */