release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/staging/tidspbridge/include/dspbridge/dbldefs.h

   1 /*
   2  * dbldefs.h
   3  *
   4  * DSP-BIOS Bridge driver support functions for TI OMAP processors.
   5  *
   6  * Copyright (C) 2005-2006 Texas Instruments, Inc.
   7  *
   8  * This package is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  13  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  14  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  15  */
  16
  17 #ifndef DBLDEFS_
  18 #define DBLDEFS_
  19
  20 /*
  21  *  Bit masks for dbl_flags.
  22  */
  23 #define DBL_NOLOAD   0x0        /* Don't load symbols, code, or data */
  24 #define DBL_SYMB     0x1        /* load symbols */
  25 #define DBL_CODE     0x2        /* load code */
  26 #define DBL_DATA     0x4        /* load data */
  27 #define DBL_DYNAMIC  0x8        /* dynamic load */
  28 #define DBL_BSS      0x20       /* Unitialized section */
  29
  30 #define DBL_MAXPATHLENGTH       255
  31
  32 /*
  33  *  ======== dbl_flags ========
  34  *  Specifies whether to load code, data, or symbols
  35  */
  36 typedef s32 dbl_flags;
  37
  38 /*
  39  *  ======== dbl_sect_info ========
  40  *  For collecting info on overlay sections
  41  */
  42 struct dbl_sect_info {
  43         const char *name;       /* name of section */
  44         u32 sect_run_addr;      /* run address of section */
  45         u32 sect_load_addr;     /* load address of section */
  46         u32 size;               /* size of section (target MAUs) */
  47         dbl_flags type;         /* Code, data, or BSS */
  48 };
  49
  50 /*
  51  *  ======== dbl_symbol ========
  52  *  (Needed for dynamic load library)
  53  */
  54 struct dbl_symbol {
  55         u32 value;
  56 };
  57
  58 /*
  59  *  ======== dbl_alloc_fxn ========
  60  *  Allocate memory function.  Allocate or reserve (if reserved == TRUE)
  61  *  "size" bytes of memory from segment "space" and return the address in
  62  *  *dsp_address (or starting at *dsp_address if reserve == TRUE). Returns 0 on
  63  *  success, or an error code on failure.
  64  */
  65 typedef s32(*dbl_alloc_fxn) (void *hdl, s32 space, u32 size, u32 align,
  66                              u32 *dsp_address, s32 seg_id, s32 req,
  67                              bool reserved);
  68
  69 /*
  70  *  ======== dbl_free_fxn ========
  71  *  Free memory function.  Free, or unreserve (if reserved == TRUE) "size"
  72  *  bytes of memory from segment "space"
  73  */
  74 typedef bool(*dbl_free_fxn) (void *hdl, u32 addr, s32 space, u32 size,
  75                              bool reserved);
  76
  77 /*
  78  *  ======== dbl_log_write_fxn ========
  79  *  Function to call when writing data from a section, to log the info.
  80  *  Can be NULL if no logging is required.
  81  */
  82 typedef int(*dbl_log_write_fxn) (void *handle,
  83                                         struct dbl_sect_info *sect, u32 addr,
  84                                         u32 bytes);
  85
  86 /*
  87  *  ======== dbl_sym_lookup ========
  88  *  Symbol lookup function - Find the symbol name and return its value.
  89  *
  90  *  Parameters:
  91  *      handle          - Opaque handle
  92  *      parg            - Opaque argument.
  93  *      name            - Name of symbol to lookup.
  94  *      sym             - Location to store address of symbol structure.
  95  *
  96  *  Returns:
  97  *      TRUE:           Success (symbol was found).
  98  *      FALSE:          Failed to find symbol.
  99  */
 100 typedef bool(*dbl_sym_lookup) (void *handle, void *parg, void *rmm_handle,
 101                                const char *name, struct dbl_symbol ** sym);
 102
 103 /*
 104  *  ======== dbl_write_fxn ========
 105  *  Write memory function.  Write "n" HOST bytes of memory to segment "mtype"
 106  *  starting at address "dsp_address" from the buffer "buf".  The buffer is
 107  *  formatted as an array of words appropriate for the DSP.
 108  */
 109 typedef s32(*dbl_write_fxn) (void *hdl, u32 dsp_address, void *buf,
 110                              u32 n, s32 mtype);
 111
 112 /*
 113  *  ======== dbl_attrs ========
 114  */
 115 struct dbl_attrs {
 116         dbl_alloc_fxn alloc;
 117         dbl_free_fxn free;
 118         void *rmm_handle;       /* Handle to pass to alloc, free functions */
 119         dbl_write_fxn write;
 120         void *input_params;     /* Handle to pass to write, cinit function */
 121
 122         dbl_log_write_fxn log_write;
 123         void *log_write_handle;
 124
 125         /* Symbol matching function and handle to pass to it */
 126         dbl_sym_lookup sym_lookup;
 127         void *sym_handle;
 128         void *sym_arg;
 129
 130         /*
 131          *  These file manipulation functions should be compatible with the
 132          *  "C" run time library functions of the same name.
 133          */
 134          s32(*fread) (void *, size_t, size_t, void *);
 135          s32(*fseek) (void *, long, int);
 136          s32(*ftell) (void *);
 137          s32(*fclose) (void *);
 138         void *(*fopen) (const char *, const char *);
 139 };
 140
 141 #endif /* DBLDEFS_ */