imgdrv.c File Reference

#include <ioman.h>
#include <irx.h>
#include <loadcore.h>

Include dependency graph for imgdrv.c:

Go to the source code of this file.

Data Structures
struct	iop_device_ops_short_t

Macros
#define	MAX_IMAGES   2

Functions
static int	imgdrv_dummy (void)
static int	imgdrv_read (iop_file_t *f, void *buf, int size)
static int	imgdrv_lseek (iop_file_t *f, int offset, int whence)
int	_start (int argc, char *argv[])

Variables
static iop_device_ops_short_t	imgdrv_ops
const void *	img [MAX_IMAGES] = {0}
int	img_size [MAX_IMAGES] = {0}
static iop_device_t	img_device

Detailed Description

Image device driver (IMGDRV) Used by the special IOP reboot sequence, to reboot the IOP with a buffered IOPRP image.

Definition in file imgdrv.c.

Macro Definition Documentation

MAX_IMAGES

#define MAX_IMAGES   2

Definition at line 49 of file imgdrv.c.

Function Documentation

_start()

int _start	(	int	argc,
		char *	argv[]
	)

Definition at line 62 of file imgdrv.c.

{
        return AddDrv(&img_device) < 0;
}

References img_device.

imgdrv_dummy()

static int imgdrv_dummy ( void  )

static

Definition at line 67 of file imgdrv.c.

{
        return 0;
}

imgdrv_lseek()

static int imgdrv_lseek ( iop_file_t *  f, int  offset, int  whence  )

static

Definition at line 86 of file imgdrv.c.

{
        return(whence == SEEK_SET ? 0 : img_size[f->unit]);
}

References img_size.

imgdrv_read()

static int imgdrv_read ( iop_file_t *  f, void *  buf, int  size  )

static

Definition at line 72 of file imgdrv.c.

{
        int i;
        const u32 *img_ptr;
        u32 *img_out;
 
        img_out = (u32*)buf;
        img_ptr = (const u32*)img[f->unit];
        for(i = size; i > 0; i-=4,img_ptr++,img_out++)
                *img_out = *img_ptr;
 
        return size;
}

References img.

Variable Documentation

img

const void* img[MAX_IMAGES] = {0}

Definition at line 51 of file imgdrv.c.

Referenced by imgdrv_read().

img_device

iop_device_t img_device

static

Initial value:

= {
        "img",
        IOP_DT_FS,
        1,
        "img",
        (iop_device_ops_t*)&imgdrv_ops
}

Definition at line 54 of file imgdrv.c.

Referenced by _start().

img_size

int img_size[MAX_IMAGES] = {0}

Definition at line 52 of file imgdrv.c.

Referenced by imgdrv_lseek().

imgdrv_ops

iop_device_ops_short_t imgdrv_ops

static

Initial value:

= {
        (void*)imgdrv_dummy,    
        (void*)imgdrv_dummy,    
        NULL,                   
        (void*)imgdrv_dummy,    
        (void*)imgdrv_dummy,    
        &imgdrv_read,           
        NULL,                   
        &imgdrv_lseek,          
}

Definition at line 38 of file imgdrv.c.