diff options
Diffstat (limited to 'src/kernel/arch/amd64/driver')
| -rw-r--r-- | src/kernel/arch/amd64/driver/pata.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/src/kernel/arch/amd64/driver/pata.c b/src/kernel/arch/amd64/driver/pata.c index b4ec46c..1193add 100644 --- a/src/kernel/arch/amd64/driver/pata.c +++ b/src/kernel/arch/amd64/driver/pata.c @@ -1,4 +1,5 @@ #include <camellia/errno.h> +#include <camellia/fsutil.h> #include <kernel/arch/amd64/ata.h> #include <kernel/arch/amd64/driver/pata.h> #include <kernel/arch/amd64/driver/util.h> @@ -53,22 +54,26 @@ static void accept(struct vfs_request *req) { vfsreq_finish_short(req, req_readcopy(req, list, len)); break; } - // TODO ata size get - if (req->offset < 0) { - vfsreq_finish_short(req, -ENOSYS); - break; - } + fs_normslice(&req->offset, &req->output.len, ata_size(id), false); + char buf[512]; /* stupid */ - uint32_t sector = req->offset / 512; - size_t len = min(req->output.len, 512 - ((size_t)req->offset & 511)); + uint32_t sector = req->offset / ATA_SECTOR; + size_t skip = (size_t)req->offset & (ATA_SECTOR - 1); + size_t len = min(req->output.len, ATA_SECTOR - skip); ata_read(id, sector, buf); - virt_cpy_to(req->caller->pages, req->output.buf, buf, len); + virt_cpy_to(req->caller->pages, req->output.buf, buf + skip, len); vfsreq_finish_short(req, len); break; case VFSOP_WRITE: panic_unimplemented(); + case VFSOP_GETSIZE: + if (id == root_id) + panic_unimplemented(); + vfsreq_finish_short(req, ata_size(id)); + break; + default: vfsreq_finish_short(req, -ENOSYS); break; |