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Rev 2398 Rev 2422
Line 47... Line 47...
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static parea_t rd_parea;        /**< Physical memory area for rd. */
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static parea_t rd_parea;        /**< Physical memory area for rd. */
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int init_rd(rd_header * header, size_t size)
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int init_rd(rd_header * header, size_t size)
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{
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{
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    printf("Header magic  %c%c%c%c\n",header->magic[0],header->magic[1],header->magic[2],header->magic[3]);
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    //printf("Header magic  %c%c%c%c\n",header->magic[0],header->magic[1],header->magic[2],header->magic[3]);
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    /* Identify RAM disk */
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    /* Identify RAM disk */
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    if ((header->magic[0] != RD_MAG0) || (header->magic[1] != RD_MAG1) ||
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    if ((header->magic[0] != RD_MAG0) || (header->magic[1] != RD_MAG1) ||
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        (header->magic[2] != RD_MAG2) || (header->magic[3] != RD_MAG3))
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        (header->magic[2] != RD_MAG2) || (header->magic[3] != RD_MAG3))
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        return RE_INVALID;
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        return RE_INVALID;
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    printf("Header version %d\n",header->version);
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    //printf("Header version %d\n",header->version);
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    printf("Expected version %d\n",RD_VERSION);        
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    //printf("Expected version %d\n",RD_VERSION);          
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    /* Identify version */ 
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    /* Identify version */ 
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    if (header->version != RD_VERSION)
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    if (header->version != RD_VERSION)
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        return RE_UNSUPPORTED;
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        return RE_UNSUPPORTED;
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    printf("Header type %d\n",header->data_type);
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    //printf("Header type %d\n",header->data_type);
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    uint32_t hsize;
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    uint32_t hsize;
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    uint64_t dsize;
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    uint64_t dsize;
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    switch (header->data_type) {
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    switch (header->data_type) {
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    case RD_DATA_LSB:
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    case RD_DATA_LSB:
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        break;
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        break;
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    default:
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    default:
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        return RE_UNSUPPORTED;
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        return RE_UNSUPPORTED;
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    }  
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    }  
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    printf("Header size %d\n",header->header_size);
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    //printf("Header size %d\n",header->header_size);
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    printf("Data size %d\n",header->data_size);
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    //printf("Data size %d\n",header->data_size);
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    printf("Size %d\n",size);
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    //printf("Size %d\n",size);
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    //jelen: does this make any sense? (we don't even care about the header size, do we?)
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    //jelen: does this make any sense? (we don't even care about the header size, do we?)
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    /*
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    /*
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    if ((hsize % FRAME_SIZE) || (dsize % FRAME_SIZE))
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    if ((hsize % FRAME_SIZE) || (dsize % FRAME_SIZE))
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        return RE_UNSUPPORTED;
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        return RE_UNSUPPORTED;
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        return RE_INVALID;
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        return RE_INVALID;
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    if ((uint64_t) hsize + dsize > size)
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    if ((uint64_t) hsize + dsize > size)
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        dsize = size - hsize;
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        dsize = size - hsize;
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 - 
 
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    rd_parea.pbase = ALIGN_DOWN((uintptr_t)KA2PA((void *) header + hsize), FRAME_SIZE);
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    rd_parea.pbase = ALIGN_DOWN((uintptr_t)KA2PA((void *) header + hsize), FRAME_SIZE);
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    rd_parea.vbase = (uintptr_t) ((void *) header + hsize);
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    rd_parea.vbase = (uintptr_t) ((void *) header + hsize);
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    rd_parea.frames = SIZE2FRAMES(dsize);
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    rd_parea.frames = SIZE2FRAMES(dsize);
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    rd_parea.cacheable = true;
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    rd_parea.cacheable = true;
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    ddi_parea_register(&rd_parea);
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    ddi_parea_register(&rd_parea);
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    sysinfo_set_item_val("rd", NULL, true);
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    sysinfo_set_item_val("rd", NULL, true);
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    sysinfo_set_item_val("rd.header_size", NULL, hsize);   
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    sysinfo_set_item_val("rd.header_size", NULL, hsize);   
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    sysinfo_set_item_val("rd.size", NULL, dsize);
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    sysinfo_set_item_val("rd.size", NULL, dsize);
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    sysinfo_set_item_val("rd.address.physical", NULL, (unative_t)
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    sysinfo_set_item_val("rd.address.physical", NULL, (unative_t)
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        KA2PA((void *) header + hsize));
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        KA2PA((void *) header + hsize));
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    sysinfo_set_item_val("rd.address.color", NULL, (unative_t)
 - 
 
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        PAGE_COLOR((uintptr_t) header + hsize));
 - 
 
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    return RE_OK;
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    return RE_OK;
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}
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}
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/** @}
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/** @}