patch-2.1.44 linux/include/asm-mips/sgiarcs.h

• Lines: 352
• Date: Thu Jun 26 12:33:40 1997
• Orig file: v2.1.43/linux/include/asm-mips/sgiarcs.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.43/linux/include/asm-mips/sgiarcs.h linux/include/asm-mips/sgiarcs.h
@@ -0,0 +1,351 @@
+/* $Id: sgiarcs.h,v 1.1 1997/06/06 09:39:58 ralf Exp $
+ * SGI ARCS firmware interface defines.
+ *
+ * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
+ */
+
+#ifndef _MIPS_SGIARCS_H
+#define _MIPS_SGIARCS_H
+
+/* Various ARCS error codes. */
+#define PROM_ESUCCESS                   0x00
+#define PROM_E2BIG                      0x01
+#define PROM_EACCESS                    0x02
+#define PROM_EAGAIN                     0x03
+#define PROM_EBADF                      0x04
+#define PROM_EBUSY                      0x05
+#define PROM_EFAULT                     0x06
+#define PROM_EINVAL                     0x07
+#define PROM_EIO                        0x08
+#define PROM_EISDIR                     0x09
+#define PROM_EMFILE                     0x0a
+#define PROM_EMLINK                     0x0b
+#define PROM_ENAMETOOLONG               0x0c
+#define PROM_ENODEV                     0x0d
+#define PROM_ENOENT                     0x0e
+#define PROM_ENOEXEC                    0x0f
+#define PROM_ENOMEM                     0x10
+#define PROM_ENOSPC                     0x11
+#define PROM_ENOTDIR                    0x12
+#define PROM_ENOTTY                     0x13
+#define PROM_ENXIO                      0x14
+#define PROM_EROFS                      0x15
+/* SGI ARCS specific errno's. */
+#define PROM_EADDRNOTAVAIL              0x1f
+#define PROM_ETIMEDOUT                  0x20
+#define PROM_ECONNABORTED               0x21
+#define PROM_ENOCONNECT                 0x22
+
+/* Device classes, types, and identifiers for prom
+ * device inventory queries.
+ */
+enum linux_devclass {
+	system, processor, cache, adapter, controller, peripheral, memory
+};
+
+enum linux_devtypes {
+	/* Generic stuff. */
+	Arc, Cpu, Fpu,
+
+	/* Primary insn and data caches. */
+	picache, pdcache,
+
+	/* Secondary insn, data, and combined caches. */
+	sicache, sdcache, sccache,
+
+	memdev, eisa_adapter, tc_adapter, scsi_adapter, dti_adapter,
+	multifunc_adapter, dsk_controller, tp_controller, cdrom_controller,
+	worm_controller, serial_controller, net_controller, disp_controller,
+	parallel_controller, ptr_controller, kbd_controller, audio_controller,
+	misc_controller, disk_peripheral, flpy_peripheral, tp_peripheral,
+	modem_peripheral, monitor_peripheral, printer_peripheral,
+	ptr_peripheral, kbd_peripheral, term_peripheral, line_peripheral,
+	net_peripheral, misc_peripheral, anon
+};
+
+enum linux_identifier {
+	bogus, ronly, removable, consin, consout, input, output
+};
+
+/* A prom device tree component. */
+struct linux_component {
+	enum linux_devclass     class;   /* node class */
+	enum linux_devtypes     type;    /* node type */
+	enum linux_identifier   iflags;  /* node flags */
+	unsigned short          vers;    /* node version */
+	unsigned short          rev;     /* node revision */
+	unsigned long           key;     /* completely magic */
+	unsigned long           amask;   /* XXX affinity mask??? */
+	unsigned long           cdsize;  /* size of configuration data */
+	unsigned long           ilen;    /* length of string identifier */
+	char                   *iname;   /* string identifier */
+};
+typedef struct linux_component pcomponent;
+
+struct linux_sysid {
+	char vend[8], prod[8];
+};
+
+/* ARCS prom memory descriptors. */
+enum linux_memtypes {
+	eblock,  /* exception block */
+	rvpage,  /* ARCS romvec page */
+	fcontig, /* Contiguous and free */
+	free,    /* Generic free memory */
+	bmem,    /* Borken memory, don't use */
+	prog,    /* A loaded program resides here */
+	atmp,    /* ARCS temporary storage area, wish Sparc OpenBoot told this */
+	aperm,   /* ARCS permanent storage... */
+};
+
+struct linux_mdesc {
+	enum linux_memtypes type;
+	unsigned long base;
+	unsigned long pages;
+};
+
+/* Time of day descriptor. */
+struct linux_tinfo {
+	unsigned short yr;
+	unsigned short mnth;
+	unsigned short day;
+	unsigned short hr;
+	unsigned short min;
+	unsigned short sec;
+	unsigned short msec;
+};
+
+/* ARCS virtual dirents. */
+struct linux_vdirent {
+	unsigned long namelen;
+	unsigned char attr;
+	char fname[32]; /* XXX imperical, should be a define */
+};
+
+/* Other stuff for files. */
+enum linux_omode {
+	rdonly, wronly, rdwr, wronly_creat, rdwr_creat,
+	wronly_ssede, rdwr_ssede, dirent, dirent_creat
+};
+
+enum linux_seekmode {
+	absolute, relative
+};
+
+enum linux_mountops {
+	media_load, media_unload
+};
+
+/* This prom has a bolixed design. */
+struct linux_bigint {
+#ifdef __MIPSEL__
+	unsigned long lo;
+	long hi;
+#else /* !(__MIPSEL__) */
+	long hi;
+	unsigned long lo;
+#endif
+};
+
+struct linux_finfo {
+	struct linux_bigint   begin;
+	struct linux_bigint   end;
+	struct linux_bigint   cur;
+	enum linux_devtypes dtype;
+	unsigned long         namelen;
+	unsigned char         attr;
+	char                  name[32]; /* XXX imperical, should be define */
+};
+
+struct linux_romvec {
+	/* Load an executable image. */
+	long (*load)(char *file, unsigned long end,
+		     unsigned long *start_pc,
+		     unsigned long *end_addr);
+
+	/* Invoke a standalong image. */
+	long (*invoke)(unsigned long startpc, unsigned long sp,
+		       long argc, char **argv, char **envp);
+
+	/* Load and begin execution of a standalong image. */
+	long (*exec)(char *file, long argc, char **argv, char **envp);
+
+	void (*halt)(void); 	/* Halt the machine. */
+	void (*pdown)(void);    /* Power down the machine. */
+	void (*restart)(void);  /* XXX soft reset??? */
+	void (*reboot)(void);   /* Reboot the machine. */
+	void (*imode)(void);    /* Enter PROM interactive mode. */
+	int _unused1; /* padding */
+
+	/* PROM device tree interface. */
+	pcomponent *(*next_component)(pcomponent *this);
+	pcomponent *(*child_component)(pcomponent *this);
+	pcomponent *(*parent_component)(pcomponent *this);
+	long (*component_data)(void *opaque_data, pcomponent *this);
+	pcomponent *(*child_add)(pcomponent *this,
+				 pcomponent *tmp,
+				 void *opaque_data);
+	long (*comp_del)(pcomponent *this);
+	pcomponent *(*component_by_path)(char *file);
+
+	/* Misc. stuff. */
+	long (*cfg_save)(void);
+	struct linux_sysid *(*get_sysid)(void);
+
+	/* Probing for memory. */
+	struct linux_mdesc *(*get_mdesc)(struct linux_mdesc *curr);
+	long _unused2; /* padding */
+
+	struct linux_tinfo *(*get_tinfo)(void);
+	unsigned long (*get_rtime)(void);
+
+	/* File type operations. */
+	long (*get_vdirent)(unsigned long fd, struct linux_vdirent *entry,
+			    unsigned long num, unsigned long *count);
+	long (*open)(char *file, enum linux_omode mode, unsigned long *fd);
+	long (*close)(unsigned long fd);
+	long (*read)(unsigned long fd, void *buffer, unsigned long num,
+		     unsigned long *count);
+	long (*get_rstatus)(unsigned long fd);
+	long (*write)(unsigned long fd, void *buffer, unsigned long num,
+		      unsigned long *count);
+	long (*seek)(unsigned long fd, struct linux_bigint *offset,
+		     enum linux_seekmode smode);
+	long (*mount)(char *file, enum linux_mountops op);
+
+	/* Dealing with firmware environment variables. */
+	char *(*get_evar)(char *name);
+	long (*set_evar)(char *name, char *value);
+
+	long (*get_finfo)(unsigned long fd, struct linux_finfo *buf);
+	long (*set_finfo)(unsigned long fd, unsigned long flags,
+			  unsigned long mask);
+
+	/* Miscellaneous. */
+	void (*cache_flush)(void);
+};
+
+/* The SGI ARCS parameter block is in a fixed location for standalone
+ * programs to access PROM facilities easily.
+ */
+struct linux_promblock {
+	long                 magic;       /* magic cookie */
+#define PROMBLOCK_MAGIC      0x53435241
+
+	unsigned long        len;          /* length of parm block */
+	unsigned short       ver;          /* ARCS firmware version */
+	unsigned short       rev;          /* ARCS firmware revision */
+	long                *rs_block;     /* Restart block. */
+	long                *dbg_block;    /* Debug block. */
+	long                *gevect;       /* XXX General vector??? */
+	long                *utlbvect;     /* XXX UTLB vector??? */
+	unsigned long        rveclen;      /* Size of romvec struct. */
+	struct linux_romvec *romvec;       /* Function interface. */
+	unsigned long        pveclen;      /* Length of private vector. */
+	long                *pvector;      /* Private vector. */
+	long                 adap_cnt;     /* Adapter count. */
+	long                 adap_typ0;    /* First adapter type. */
+	long                 adap_vcnt0;   /* Adapter 0 vector count. */
+	long                *adap_vector;  /* Adapter 0 vector ptr. */
+	long                 adap_typ1;    /* Second adapter type. */
+	long                 adap_vcnt1;   /* Adapter 1 vector count. */
+	long                *adap_vector1; /* Adapter 1 vector ptr. */
+	/* More adapter vectors go here... */
+};
+
+#define PROMBLOCK ((struct linux_promblock *)0xA0001000UL)
+#define ROMVECTOR ((PROMBLOCK)->romvec)
+
+/* Cache layout parameter block. */
+union linux_cache_key {
+	struct param {
+#ifdef __MIPSEL__
+		unsigned short size;
+		unsigned char lsize;
+		unsigned char bsize;
+#else /* !(__MIPSEL__) */
+		unsigned char bsize;
+		unsigned char lsize;
+		unsigned short size;
+#endif
+	} info;
+	unsigned long allinfo;
+};
+
+/* Configuration data. */
+struct linux_cdata {
+	char *name;
+	int mlen;
+	enum linux_devtypes type;
+};
+
+/* Common SGI ARCS firmware file descriptors. */
+#define SGIPROM_STDIN     0
+#define SGIPROM_STDOUT    1
+
+/* Common SGI ARCS firmware file types. */
+#define SGIPROM_ROFILE    0x01  /* read-only file */
+#define SGIPROM_HFILE     0x02  /* hidden file */
+#define SGIPROM_SFILE     0x04  /* System file */
+#define SGIPROM_AFILE     0x08  /* Archive file */
+#define SGIPROM_DFILE     0x10  /* Directory file */
+#define SGIPROM_DELFILE   0x20  /* Deleted file */
+
+/* SGI ARCS boot record information. */
+struct sgi_partition {
+	unsigned char flag;
+#define SGIPART_UNUSED 0x00
+#define SGIPART_ACTIVE 0x80
+
+	unsigned char shead, ssect, scyl; /* unused */
+	unsigned char systype; /* OS type, Irix or NT */
+	unsigned char ehead, esect, ecyl; /* unused */
+	unsigned char rsect0, rsect1, rsect2, rsect3;
+	unsigned char tsect0, tsect1, tsect2, tsect3;
+};
+
+#define SGIBBLOCK_MAGIC   0xaa55
+#define SGIBBLOCK_MAXPART 0x0004
+
+struct sgi_bootblock {
+	unsigned char _unused[446];
+	struct sgi_partition partitions[SGIBBLOCK_MAXPART];
+	unsigned short magic;
+};
+
+/* BIOS parameter block. */
+struct sgi_bparm_block {
+	unsigned short bytes_sect;    /* bytes per sector */
+	unsigned char  sect_clust;    /* sectors per cluster */
+	unsigned short sect_resv;     /* reserved sectors */
+	unsigned char  nfats;         /* # of allocation tables */
+	unsigned short nroot_dirents; /* # of root directory entries */
+	unsigned short sect_volume;   /* sectors in volume */
+	unsigned char  media_type;    /* media descriptor */
+	unsigned short sect_fat;      /* sectors per allocation table */
+	unsigned short sect_track;    /* sectors per track */
+	unsigned short nheads;        /* # of heads */
+	unsigned short nhsects;       /* # of hidden sectors */
+};
+
+struct sgi_bsector {
+	unsigned char   jmpinfo[3];
+	unsigned char   manuf_name[8];
+	struct sgi_bparm_block info;
+};
+
+/* Debugging block used with SGI symmon symbolic debugger. */
+#define SMB_DEBUG_MAGIC   0xfeeddead
+struct linux_smonblock {
+	unsigned long   magic;
+	void            (*handler)(void);  /* Breakpoint routine. */
+	unsigned long   dtable_base;       /* Base addr of dbg table. */
+	int             (*printf)(const char *fmt, ...);
+	unsigned long   btable_base;       /* Breakpoint table. */
+	unsigned long   mpflushreqs;       /* SMP cache flush request list. */
+	unsigned long   ntab;              /* Name table. */
+	unsigned long   stab;              /* Symbol table. */
+	int             smax;              /* Max # of symbols. */
+};
+
+#endif /* !(_MIPS_SGIARCS_H) */