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#include "kernel.h"
#include "util/debug.h"
#include <drivers/disk/sata.h>
#include "drivers/blockdev.h"
#include "mm/pframe.h"
#include "fs/s5fs/s5fs.h"
#ifdef NO
static mobj_ops_t blockdev_mobj_ops = {.get_pframe = NULL,
.fill_pframe = blockdev_fill_pframe,
.flush_pframe = blockdev_flush_pframe,
.destructor = NULL};
#endif
static list_t blockdevs = LIST_INITIALIZER(blockdevs);
void blockdev_init() { sata_init(); }
long blockdev_register(blockdev_t *dev)
{
if (!dev || dev->bd_id == NULL_DEVID || !dev->bd_ops)
{
return -1;
}
list_iterate(&blockdevs, bd, blockdev_t, bd_link)
{
if (dev->bd_id == bd->bd_id)
{
return -1;
}
}
#ifdef NO
mobj_init(&dev->bd_mobj, MOBJ_BLOCKDEV, &blockdev_mobj_ops);
#endif
list_insert_tail(&blockdevs, &dev->bd_link);
return 0;
}
blockdev_t *blockdev_lookup(devid_t id)
{
list_iterate(&blockdevs, bd, blockdev_t, bd_link)
{
if (id == bd->bd_id)
{
return bd;
}
}
return NULL;
}
#ifdef NO
static long blockdev_fill_pframe(mobj_t *mobj, pframe_t *pf)
{
KASSERT(mobj && pf);
KASSERT(pf->pf_pagenum <= (1UL << (8 * sizeof(blocknum_t))));
blockdev_t *bd = CONTAINER_OF(mobj, blockdev_t, bd_mobj);
return bd->bd_ops->read_block(bd, pf->pf_addr, (blocknum_t)pf->pf_pagenum,
1);
}
static long blockdev_flush_pframe(mobj_t *mobj, pframe_t *pf)
{
KASSERT(mobj && pf);
KASSERT(pf->pf_pagenum <= (1UL << (8 * sizeof(blocknum_t))));
dbg(DBG_S5FS, "writing disk block %lu\n", pf->pf_pagenum);
blockdev_t *bd = CONTAINER_OF(mobj, blockdev_t, bd_mobj);
return bd->bd_ops->write_block(bd, pf->pf_addr, (blocknum_t)pf->pf_pagenum,
1);
}
#endif
long blockdev_fill_pframe(mobj_t *mobj, pframe_t *pf)
{
KASSERT(mobj && pf);
KASSERT(pf->pf_pagenum <= (1UL << (8 * sizeof(blocknum_t))));
blockdev_t *bd = CONTAINER_OF(mobj, s5fs_t, s5f_mobj)->s5f_bdev;
KASSERT(pf->pf_loc);
return bd->bd_ops->read_block(bd, pf->pf_addr, (blocknum_t)pf->pf_loc,
1);
}
long blockdev_flush_pframe(mobj_t *mobj, pframe_t *pf)
{
KASSERT(mobj && pf);
KASSERT(pf->pf_pagenum <= (1UL << (8 * sizeof(blocknum_t))));
dbg(DBG_S5FS, "writing disk block %lu\n", pf->pf_pagenum);
blockdev_t *bd = CONTAINER_OF(mobj, s5fs_t, s5f_mobj)->s5f_bdev;
KASSERT(pf->pf_loc);
return bd->bd_ops->write_block(bd, pf->pf_addr, (blocknum_t)pf->pf_loc,
1);
}
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