modules/iopcore/imgdrv/imgdrv.c

   1 //we don't need most of this... just standard headers
   2 #include <types.h>
   3 #include <stdio.h>
   4 #include <sysclib.h>
   5 #include <thbase.h>
   6 #include <thsemap.h>
   7 #include <intrman.h>
   8 #include <sysmem.h>
   9 #include <sifman.h>
  10 #include <sifcmd.h>
  11 #include <sifrpc.h>
  12 #include <loadcore.h>
  13 #include <sys/stat.h>
  14 #include <sys/fcntl.h>
  15 #include <ioman.h>
  16 #include <kerr.h>
  17
  18 /*#define MODNAME "imgdrv"
  19 IRX_ID(MODNAME, 0x01, 0x00);*/
  20
  21 unsigned int ioprpimg = 0xDEC1DEC1;
  22 int ioprpsiz = 0xDEC2DEC2;
  23
  24 int dummy_fs()
  25 {
  26         return 0;
  27 }
  28
  29 int lseek_fs(iop_file_t* fd, unsigned long offset, int whence)
  30 {
  31         if (whence == SEEK_END)
  32         {
  33                 return ioprpsiz;
  34         } else
  35         {
  36                 return 0;
  37         }
  38 }
  39
  40 int read_fs(iop_file_t* fd, void * buffer, int size )
  41 {
  42         memcpy(buffer, (void*)ioprpimg, size);
  43         return size;
  44 }
  45
  46 typedef struct _iop_device_tm {
  47         const char *name;
  48         unsigned int type;
  49         unsigned int version;   /* Not so sure about this one.  */
  50         const char *desc;
  51         struct _iop_device_ops_tm *ops;
  52 } iop_device_tm_t;
  53
  54 typedef struct _iop_device_ops_tm {
  55         int     (*init)(iop_device_t *);
  56         int     (*deinit)(iop_device_t *);
  57         int     (*format)(iop_file_t *);
  58         int     (*open)(iop_file_t *, const char *, int);
  59         int     (*close)(iop_file_t *);
  60         int     (*read)(iop_file_t *, void *, int);
  61         int     (*write)(iop_file_t *, void *, int);
  62         int     (*lseek)(iop_file_t *, unsigned long, int);
  63 } iop_device_ops_tm_t;
  64
  65 iop_device_ops_t my_device_ops =
  66           {
  67               dummy_fs,//init
  68               dummy_fs,//deinit
  69               NULL,//dummy_fs,//format
  70               dummy_fs,//open_fs,//open
  71               dummy_fs,//close_fs,//close
  72               read_fs,//read
  73               NULL,//dummy_fs,//write
  74               lseek_fs,//lseek
  75               /*dummy_fs,//ioctl
  76               dummy_fs,//remove
  77               dummy_fs,//mkdir
  78               dummy_fs,//rmdir
  79               dummy_fs,//dopen
  80               dummy_fs,//dclose
  81               dummy_fs,//dread
  82               dummy_fs,//getstat
  83               dummy_fs,//chstat*/
  84           };
  85
  86 const u8 name[] = "img";
  87 iop_device_t my_device = {
  88               name,
  89               IOP_DT_FS,
  90               1,
  91               name,
  92               &my_device_ops
  93               };
  94
  95 int _start( int argc, char **argv)
  96 {
  97         //DelDrv("img");
  98         AddDrv((iop_device_t*)&my_device);
  99
 100         return MODULE_RESIDENT_END;
 101 }