Ray Liu
/
NuMaker-mbed-Serial-to-Ethernet
Modify the file main.cpp for M487
Diff: NuMaker-mbed-SD-driver/NuSDBlockDevice.h
- Revision:
- 0:c89ccc69a48b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/NuMaker-mbed-SD-driver/NuSDBlockDevice.h Fri Sep 29 05:45:43 2017 +0000 @@ -0,0 +1,135 @@ +/* mbed Microcontroller Library + * Copyright (c) 2015-2016 Nuvoton + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef __NU_SD_BLOCK_DEVICE_H__ +#define __NU_SD_BLOCK_DEVICE_H__ + +#include "BlockDevice.h" +#include "mbed.h" + +struct nu_modinit_s; + +class NuSDBlockDevice : public BlockDevice { +public: + /** Lifetime of an SD card + */ + NuSDBlockDevice(); + NuSDBlockDevice(PinName sd_dat0, PinName sd_dat1, PinName sd_dat2, PinName sd_dat3, + PinName sd_cmd, PinName sd_clk, PinName sd_cdn); + virtual ~NuSDBlockDevice(); + + /** Initialize a block device + * + * @return 0 on success or a negative error code on failure + */ + virtual int init(); + + /** Deinitialize a block device + * + * @return 0 on success or a negative error code on failure + */ + virtual int deinit(); + + /** Read blocks from a block device + * + * @param buffer Buffer to write blocks to + * @param addr Address of block to begin reading from + * @param size Size to read in bytes, must be a multiple of read block size + * @return 0 on success, negative error code on failure + */ + virtual int read(void *buffer, bd_addr_t addr, bd_size_t size); + + /** Program blocks to a block device + * + * The blocks must have been erased prior to being programmed + * + * @param buffer Buffer of data to write to blocks + * @param addr Address of block to begin writing to + * @param size Size to write in bytes, must be a multiple of program block size + * @return 0 on success, negative error code on failure + */ + virtual int program(const void *buffer, bd_addr_t addr, bd_size_t size); + + /** Erase blocks on a block device + * + * The state of an erased block is undefined until it has been programmed + * + * @param addr Address of block to begin erasing + * @param size Size to erase in bytes, must be a multiple of erase block size + * @return 0 on success, negative error code on failure + */ + virtual int erase(bd_addr_t addr, bd_size_t size); + + /** Get the size of a readable block + * + * @return Size of a readable block in bytes + */ + virtual bd_size_t get_read_size() const; + + /** Get the size of a programable block + * + * @return Size of a programable block in bytes + * @note Must be a multiple of the read size + */ + virtual bd_size_t get_program_size() const; + + /** Get the size of a eraseable block + * + * @return Size of a eraseable block in bytes + * @note Must be a multiple of the program size + */ + virtual bd_size_t get_erase_size() const; + + /** Get the total size of the underlying device + * + * @return Size of the underlying device in bytes + */ + virtual bd_size_t size() const; + + /** Enable or disable debugging + * + * @param State of debugging + */ + virtual void debug(bool dbg); + +private: + int _init_sdh(); + uint32_t _sd_sectors(); + void _sdh_irq(); + + uint32_t _sectors; + bool _is_initialized; + bool _dbg; + Mutex _lock; + + const struct nu_modinit_s * _sdh_modinit; + SDName _sdh; + SDH_T * _sdh_base; +#if defined(TARGET_NUMAKER_PFM_NUC472) + uint32_t _sdh_port; +#endif + + CThunk<NuSDBlockDevice> _sdh_irq_thunk; + + PinName _sd_dat0; + PinName _sd_dat1; + PinName _sd_dat2; + PinName _sd_dat3; + PinName _sd_cmd; + PinName _sd_clk; + PinName _sd_cdn; +}; + +#endif /* __NU_SD_BLOCK_DEVICE_H__ */