nand/ram-nand/ram-nand.cpp

48             nand_op_t* operation = &nand_op->op;
49             operation->completion_cb(operation, ZX_ERR_BAD_STATE);
186 void NandDevice::Queue(nand_op_t* operation) {
188     switch (operation->command) {
191         if (operation->rw.offset_nand >= max_pages || !operation->rw.length ||
192             (max_pages - operation->rw.offset_nand) < operation->rw.length) {
193             operation->completion_cb(operation, ZX_ERR_OUT_OF_RANGE);
196         if (operation->rw.data_vmo == ZX_HANDLE_INVALID &&
197             operation->rw.oob_vmo == ZX_HANDLE_INVALID) {
198             operation->completion_cb(operation, ZX_ERR_BAD_HANDLE);
204         if (!operation->erase.num_blocks ||
205             operation->erase.first_block >= params_.num_blocks ||
206             params_.num_blocks - operation->erase.first_block < operation->erase.num_blocks) {
207             operation->completion_cb(operation, ZX_ERR_OUT_OF_RANGE);
213         operation->completion_cb(operation, ZX_ERR_NOT_SUPPORTED);
217     if (AddToList(operation)) {
220         operation->completion_cb(operation, ZX_ERR_BAD_STATE);
235 bool NandDevice::AddToList(nand_op_t* operation) {
239         RamNandOp* nand_op = reinterpret_cast<RamNandOp*>(operation);
245 bool NandDevice::RemoveFromList(nand_op_t** operation) {
250         *operation = reinterpret_cast<nand_op_t*>(nand_op);
257         nand_op_t* operation;
259             if (!RemoveFromList(&operation)) {
262             if (operation) {
272         switch (operation->command) {
275             status = ReadWriteData(operation);
277                 status = ReadWriteOob(operation);
282             status = Erase(operation);
289         operation->completion_cb(operation, status);
298 zx_status_t NandDevice::ReadWriteData(nand_op_t* operation) {
299     if (operation->rw.data_vmo == ZX_HANDLE_INVALID) {
303     uint32_t nand_addr = operation->rw.offset_nand * params_.page_size;
304     uint64_t vmo_addr = operation->rw.offset_data_vmo * params_.page_size;
305     uint32_t length = operation->rw.length * params_.page_size;
308     if (operation->command == NAND_OP_READ) {
309         operation->rw.corrected_bit_flips = 0;
310         return zx_vmo_write(operation->rw.data_vmo, addr, vmo_addr, length);
313     ZX_DEBUG_ASSERT(operation->command == NAND_OP_WRITE);
316     ZX_DEBUG_ASSERT_MSG(operation->rw.length <= params_.pages_per_block,
318     ZX_DEBUG_ASSERT_MSG(operation->rw.offset_nand / params_.pages_per_block ==
319                         (operation->rw.offset_nand + operation->rw.length - 1)
323     return zx_vmo_read(operation->rw.data_vmo, addr, vmo_addr, length);
326 zx_status_t NandDevice::ReadWriteOob(nand_op_t* operation) {
327     if (operation->rw.oob_vmo == ZX_HANDLE_INVALID) {
331     uint32_t nand_addr = MainDataSize() + operation->rw.offset_nand * params_.oob_size;
332     uint64_t vmo_addr = operation->rw.offset_oob_vmo * params_.page_size;
333     uint32_t length = operation->rw.length * params_.oob_size;
336     if (operation->command == NAND_OP_READ) {
337         operation->rw.corrected_bit_flips = 0;
338         return zx_vmo_write(operation->rw.oob_vmo, addr, vmo_addr, length);
341     ZX_DEBUG_ASSERT(operation->command == NAND_OP_WRITE);
342     return zx_vmo_read(operation->rw.oob_vmo, addr, vmo_addr, length);
345 zx_status_t NandDevice::Erase(nand_op_t* operation) {
346     ZX_DEBUG_ASSERT(operation->command == NAND_OP_ERASE);
349     uint32_t nand_addr = operation->erase.first_block * block_size;
350     uint32_t length = operation->erase.num_blocks * block_size;
357     length = operation->erase.num_blocks * oob_per_block;
358     nand_addr = MainDataSize() + operation->erase.first_block * oob_per_block;