/*
    nubus.h: various definitions and prototypes for NuBus drivers to use.
  
    Originally written by Alan Cox.
  
    Hacked to death by C. Scott Ananian and David Huggins-Daines.
    
    Some of the constants in here are from the corresponding
    NetBSD/OpenBSD header file, by Allen Briggs.  We figured out the
    rest of them on our own. */
  
  #ifndef LINUX_NUBUS_H
  #define LINUX_NUBUS_H

  #include <linux/types.h>

  #ifdef __KERNEL__
  #include <asm/nubus.h>
  #endif
  
  enum nubus_category {
  	NUBUS_CAT_BOARD          = 0x0001,
  	NUBUS_CAT_DISPLAY        = 0x0003,
  	NUBUS_CAT_NETWORK        = 0x0004,
  	NUBUS_CAT_COMMUNICATIONS = 0x0006,
  	NUBUS_CAT_FONT           = 0x0009,
  	NUBUS_CAT_CPU            = 0x000A,
  	/* For lack of a better name */
  	NUBUS_CAT_DUODOCK        = 0x0020
  };
  
  enum nubus_type_network {

  	NUBUS_TYPE_ETHERNET      = 0x0001,
  	NUBUS_TYPE_RS232         = 0x0002

  };
  
  enum nubus_type_display {

  	NUBUS_TYPE_VIDEO         = 0x0001

  };
  
  enum nubus_type_cpu {

  	NUBUS_TYPE_68020         = 0x0003,
  	NUBUS_TYPE_68030         = 0x0004,
  	NUBUS_TYPE_68040         = 0x0005

  };
  
  /* Known <Cat,Type,SW,HW> tuples: (according to TattleTech and Slots)
   *  68030 motherboards: <10,4,0,24>
   *  68040 motherboards: <10,5,0,24>
   *  DuoDock Plus: <32,1,1,2>
   *
   *  Toby Frame Buffer card: <3,1,1,1>
   *  RBV built-in video (IIci): <3,1,1,24>
   *  Valkyrie built-in video (Q630): <3,1,1,46>
   *  Macintosh Display Card: <3,1,1,25>
   *  Sonora built-in video (P460): <3,1,1,34>
   *  Jet framebuffer (DuoDock Plus): <3,1,1,41>
   *
   *  SONIC comm-slot/on-board and DuoDock Ethernet: <4,1,1,272>
   *  SONIC LC-PDS Ethernet (Dayna, but like Apple 16-bit, sort of): <4,1,1,271>

   *  Apple SONIC LC-PDS Ethernet ("Apple Ethernet LC Twisted-Pair Card"): <4,1,0,281>

   *  Sonic Systems Ethernet A-Series Card: <4,1,268,256>
   *  Asante MacCon NuBus-A: <4,1,260,256> (alpha-1.0,1.1 revision)
   *   ROM on the above card: <2,1,0,0>
   *  Cabletron ethernet card: <4,1,1,265>
   *  Farallon ethernet card: <4,1,268,256> (identical to Sonic Systems card)
   *  Kinetics EtherPort IIN: <4,1,259,262>
   *  API Engineering EtherRun_LCa PDS enet card: <4,1,282,256>
   *
   *  Add your devices to the list!  You can obtain the "Slots" utility
   *  from Apple's FTP site at:
   *  ftp://dev.apple.com/devworld/Tool_Chest/Devices_-_Hardware/NuBus_Slot_Manager/
   *
   *  Alternately, TattleTech can be found at any Info-Mac mirror site.  
   *  or from its distribution site: ftp://ftp.decismkr.com/dms
   */
  
  /* DrSW: Uniquely identifies the software interface to a board.  This
     is usually the one you want to look at when writing a driver.  It's
     not as useful as you think, though, because as we should know by
     now (duh), "Apple Compatible" can mean a lot of things... */
  
  /* Add known DrSW values here */
  enum nubus_drsw {
  	/* NUBUS_CAT_DISPLAY */

  	NUBUS_DRSW_APPLE        = 0x0001,
  	NUBUS_DRSW_APPLE_HIRES  = 0x0013, /* MacII HiRes card driver */

  	
  	/* NUBUS_CAT_NETWORK */

  	NUBUS_DRSW_3COM         = 0x0000,
  	NUBUS_DRSW_CABLETRON    = 0x0001,
  	NUBUS_DRSW_SONIC_LC     = 0x0001,
  	NUBUS_DRSW_KINETICS     = 0x0103,
  	NUBUS_DRSW_ASANTE       = 0x0104,
  	NUBUS_DRSW_TECHWORKS    = 0x0109,
  	NUBUS_DRSW_DAYNA        = 0x010b,
  	NUBUS_DRSW_FARALLON     = 0x010c,
  	NUBUS_DRSW_APPLE_SN     = 0x010f,
  	NUBUS_DRSW_DAYNA2       = 0x0115,

  	NUBUS_DRSW_FOCUS        = 0x011a,
  	NUBUS_DRSW_ASANTE_CS    = 0x011d, /* use asante SMC9194 driver */

  	NUBUS_DRSW_DAYNA_LC     = 0x011e,

  
  	/* NUBUS_CAT_CPU */

  	NUBUS_DRSW_NONE         = 0x0000,

  };
  
  /* DrHW: Uniquely identifies the hardware interface to a board (or at
     least, it should...  some video cards are known to incorrectly
     identify themselves as Toby cards) */
  
  /* Add known DrHW values here */
  enum nubus_drhw {
  	/* NUBUS_CAT_DISPLAY */

  	NUBUS_DRHW_APPLE_TFB      = 0x0001, /* Toby frame buffer card */
  	NUBUS_DRHW_APPLE_WVC      = 0x0006, /* Apple Workstation Video Card */
  	NUBUS_DRHW_SIGMA_CLRMAX   = 0x0007, /* Sigma Design ColorMax */
  	NUBUS_DRHW_APPLE_SE30     = 0x0009, /* Apple SE/30 video */
  	NUBUS_DRHW_APPLE_HRVC     = 0x0013, /* Mac II High-Res Video Card */
  	NUBUS_DRHW_APPLE_PVC      = 0x0017, /* Mac II Portrait Video Card */
  	NUBUS_DRHW_APPLE_RBV1     = 0x0018, /* IIci RBV video */
  	NUBUS_DRHW_APPLE_MDC      = 0x0019, /* Macintosh Display Card */
  	NUBUS_DRHW_APPLE_SONORA   = 0x0022, /* Sonora built-in video */
  	NUBUS_DRHW_APPLE_24AC     = 0x002b, /* Mac 24AC Video Card */

  	NUBUS_DRHW_APPLE_VALKYRIE = 0x002e,

  	NUBUS_DRHW_APPLE_JET      = 0x0029, /* Jet framebuffer (DuoDock) */
  	NUBUS_DRHW_SMAC_GFX       = 0x0105, /* SuperMac GFX */
  	NUBUS_DRHW_RASTER_CB264   = 0x013B, /* RasterOps ColorBoard 264 */
  	NUBUS_DRHW_MICRON_XCEED   = 0x0146, /* Micron Exceed color */
  	NUBUS_DRHW_RDIUS_GSC      = 0x0153, /* Radius GS/C */
  	NUBUS_DRHW_SMAC_SPEC8     = 0x017B, /* SuperMac Spectrum/8 */
  	NUBUS_DRHW_SMAC_SPEC24    = 0x017C, /* SuperMac Spectrum/24 */
  	NUBUS_DRHW_RASTER_CB364   = 0x026F, /* RasterOps ColorBoard 364 */
  	NUBUS_DRHW_RDIUS_DCGX     = 0x027C, /* Radius DirectColor/GX */
  	NUBUS_DRHW_RDIUS_PC8      = 0x0291, /* Radius PrecisionColor 8 */
  	NUBUS_DRHW_LAPIS_PCS8     = 0x0292, /* Lapis ProColorServer 8 */

  	NUBUS_DRHW_RASTER_24XLI   = 0x02A0, /* RasterOps 8/24 XLi */

  	NUBUS_DRHW_RASTER_PBPGT   = 0x02A5, /* RasterOps PaintBoard Prism GT */
  	NUBUS_DRHW_EMACH_FSX      = 0x02AE, /* E-Machines Futura SX */

  	NUBUS_DRHW_RASTER_24XLTV  = 0x02B7, /* RasterOps 24XLTV */

  	NUBUS_DRHW_SMAC_THUND24   = 0x02CB, /* SuperMac Thunder/24 */

  	NUBUS_DRHW_SMAC_THUNDLGHT = 0x03D9, /* SuperMac ThunderLight */

  	NUBUS_DRHW_RDIUS_PC24XP   = 0x0406, /* Radius PrecisionColor 24Xp */
  	NUBUS_DRHW_RDIUS_PC24X    = 0x040A, /* Radius PrecisionColor 24X */
  	NUBUS_DRHW_RDIUS_PC8XJ    = 0x040B, /* Radius PrecisionColor 8XJ */

  	
  	/* NUBUS_CAT_NETWORK */

  	NUBUS_DRHW_INTERLAN       = 0x0100,
  	NUBUS_DRHW_SMC9194        = 0x0101,
  	NUBUS_DRHW_KINETICS       = 0x0106,
  	NUBUS_DRHW_CABLETRON      = 0x0109,
  	NUBUS_DRHW_ASANTE_LC      = 0x010f,
  	NUBUS_DRHW_SONIC          = 0x0110,
  	NUBUS_DRHW_TECHWORKS      = 0x0112,
  	NUBUS_DRHW_APPLE_SONIC_NB = 0x0118,
  	NUBUS_DRHW_APPLE_SONIC_LC = 0x0119,
  	NUBUS_DRHW_FOCUS          = 0x011c,
  	NUBUS_DRHW_SONNET         = 0x011d,

  };
  
  /* Resource IDs: These are the identifiers for the various weird and
     wonderful tidbits of information that may or may not reside in the
     NuBus ROM directory. */
  enum nubus_res_id {
  	NUBUS_RESID_TYPE         = 0x0001,
  	NUBUS_RESID_NAME         = 0x0002,
  	NUBUS_RESID_ICON         = 0x0003,
  	NUBUS_RESID_DRVRDIR      = 0x0004,
  	NUBUS_RESID_LOADREC      = 0x0005,
  	NUBUS_RESID_BOOTREC      = 0x0006,
  	NUBUS_RESID_FLAGS        = 0x0007,
  	NUBUS_RESID_HWDEVID      = 0x0008,
  	NUBUS_RESID_MINOR_BASEOS = 0x000a,
  	NUBUS_RESID_MINOR_LENGTH = 0x000b,
  	NUBUS_RESID_MAJOR_BASEOS = 0x000c,
  	NUBUS_RESID_MAJOR_LENGTH = 0x000d,
  	NUBUS_RESID_CICN         = 0x000f,
  	NUBUS_RESID_ICL8         = 0x0010,
  	NUBUS_RESID_ICL4         = 0x0011,
  };
  
  /* Category-specific resources. */
  enum nubus_board_res_id {

  	NUBUS_RESID_BOARDID      = 0x0020,

  	NUBUS_RESID_PRAMINITDATA = 0x0021,

  	NUBUS_RESID_PRIMARYINIT  = 0x0022,

  	NUBUS_RESID_TIMEOUTCONST = 0x0023,

  	NUBUS_RESID_VENDORINFO   = 0x0024,
  	NUBUS_RESID_BOARDFLAGS   = 0x0025,
  	NUBUS_RESID_SECONDINIT   = 0x0026,

  
  	/* Not sure why Apple put these next two in here */

  	NUBUS_RESID_VIDNAMES     = 0x0041,
  	NUBUS_RESID_VIDMODES     = 0x007e

  };
  
  /* Fields within the vendor info directory */
  enum nubus_vendor_res_id {
  	NUBUS_RESID_VEND_ID     = 0x0001,
  	NUBUS_RESID_VEND_SERIAL = 0x0002,
  	NUBUS_RESID_VEND_REV    = 0x0003,
  	NUBUS_RESID_VEND_PART   = 0x0004,
  	NUBUS_RESID_VEND_DATE   = 0x0005
  };
  
  enum nubus_net_res_id {
  	NUBUS_RESID_MAC_ADDRESS  = 0x0080
  };
  
  enum nubus_cpu_res_id {
  	NUBUS_RESID_MEMINFO      = 0x0081,
  	NUBUS_RESID_ROMINFO      = 0x0082
  };
  
  enum nubus_display_res_id {

  	NUBUS_RESID_GAMMADIR    = 0x0040,
  	NUBUS_RESID_FIRSTMODE   = 0x0080,
  	NUBUS_RESID_SECONDMODE  = 0x0081,
  	NUBUS_RESID_THIRDMODE   = 0x0082,
  	NUBUS_RESID_FOURTHMODE  = 0x0083,
  	NUBUS_RESID_FIFTHMODE   = 0x0084,
  	NUBUS_RESID_SIXTHMODE   = 0x0085

  };
  
  struct nubus_dir
  {
  	unsigned char *base;
  	unsigned char *ptr;
  	int done;
  	int mask;
  };
  
  struct nubus_dirent
  {
  	unsigned char *base;
  	unsigned char type;
  	__u32 data;	/* Actually 24bits used */
  	int mask;
  };

  #ifdef __KERNEL__

  struct nubus_board {
  	struct nubus_board* next;
  	struct nubus_dev* first_dev;
  	

  	/* Only 9-E actually exist, though 0-8 are also theoretically

  	   possible, and 0 is a special case which represents the
  	   motherboard and onboard peripherals (Ethernet, video) */
  	int slot;
  	/* For slot 0, this is bogus. */
  	char name[64];
  
  	/* Format block */
  	unsigned char* fblock;
  	/* Root directory (does *not* always equal fblock + doffset!) */
  	unsigned char* directory;
  	
  	unsigned long slot_addr;
  	/* Offset to root directory (sometimes) */
  	unsigned long doffset;
  	/* Length over which to compute the crc */
  	unsigned long rom_length;
  	/* Completely useless most of the time */
  	unsigned long crc;
  	unsigned char rev;
  	unsigned char format;
  	unsigned char lanes;
  };
  
  struct nubus_dev {
  	/* Next link in device list */
  	struct nubus_dev* next;
  	/* Directory entry in /proc/bus/nubus */
  	struct proc_dir_entry* procdir;
  
  	/* The functional resource ID of this device */
  	unsigned char resid;
  	/* These are mostly here for convenience; we could always read
  	   them from the ROMs if we wanted to */
  	unsigned short category;
  	unsigned short type;
  	unsigned short dr_sw;
  	unsigned short dr_hw;
  	/* This is the device's name rather than the board's.
  	   Sometimes they are different.  Usually the board name is
  	   more correct. */
  	char name[64];
  	/* MacOS driver (I kid you not) */
  	unsigned char* driver;
  	/* Actually this is an offset */
  	unsigned long iobase;
  	unsigned long iosize;
  	unsigned char flags, hwdevid;
  	
  	/* Functional directory */
  	unsigned char* directory;
  	/* Much of our info comes from here */
  	struct nubus_board* board;
  };
  
  /* This is all NuBus devices (used to find devices later on) */
  extern struct nubus_dev* nubus_devices;
  /* This is all NuBus cards */
  extern struct nubus_board* nubus_boards;
  
  /* Generic NuBus interface functions, modelled after the PCI interface */
  void nubus_scan_bus(void);
  extern void nubus_proc_init(void);
  int get_nubus_list(char *buf);
  int nubus_proc_attach_device(struct nubus_dev *dev);
  int nubus_proc_detach_device(struct nubus_dev *dev);
  /* If we need more precision we can add some more of these */
  struct nubus_dev* nubus_find_device(unsigned short category,
  				    unsigned short type,
  				    unsigned short dr_hw,
  				    unsigned short dr_sw,
  				    const struct nubus_dev* from);
  struct nubus_dev* nubus_find_type(unsigned short category,
  				  unsigned short type,
  				  const struct nubus_dev* from);
  /* Might have more than one device in a slot, you know... */
  struct nubus_dev* nubus_find_slot(unsigned int slot,
  				  const struct nubus_dev* from);
  
  /* These are somewhat more NuBus-specific.  They all return 0 for
     success and -1 for failure, as you'd expect. */
  
  /* The root directory which contains the board and functional
     directories */
  int nubus_get_root_dir(const struct nubus_board* board,
  		       struct nubus_dir* dir);
  /* The board directory */
  int nubus_get_board_dir(const struct nubus_board* board,
  			struct nubus_dir* dir);
  /* The functional directory */
  int nubus_get_func_dir(const struct nubus_dev* dev,
  		       struct nubus_dir* dir);
  
  /* These work on any directory gotten via the above */
  int nubus_readdir(struct nubus_dir* dir,
  		  struct nubus_dirent* ent);
  int nubus_find_rsrc(struct nubus_dir* dir,
  		    unsigned char rsrc_type,
  		    struct nubus_dirent* ent);
  int nubus_rewinddir(struct nubus_dir* dir);
  
  /* Things to do with directory entries */
  int nubus_get_subdir(const struct nubus_dirent* ent,
  		     struct nubus_dir* dir);
  void nubus_get_rsrc_mem(void* dest,
  			const struct nubus_dirent *dirent,
  			int len);
  void nubus_get_rsrc_str(void* dest,
  			const struct nubus_dirent *dirent,
  			int maxlen);

  #endif /* __KERNEL__ */

  
  /* We'd like to get rid of this eventually.  Only daynaport.c uses it now. */
  static inline void *nubus_slot_addr(int slot)
  {
  	return (void *)(0xF0000000|(slot<<24));
  }
  
  #endif /* LINUX_NUBUS_H */