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Diffstat (limited to 'tinyusb/src/class/msc/msc_device.h')
| -rwxr-xr-x | tinyusb/src/class/msc/msc_device.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/tinyusb/src/class/msc/msc_device.h b/tinyusb/src/class/msc/msc_device.h new file mode 100755 index 00000000..8f90ef4a --- /dev/null +++ b/tinyusb/src/class/msc/msc_device.h @@ -0,0 +1,159 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 Ha Thach (tinyusb.org) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * This file is part of the TinyUSB stack. + */ + +#ifndef _TUSB_MSC_DEVICE_H_ +#define _TUSB_MSC_DEVICE_H_ + +#include "common/tusb_common.h" +#include "msc.h" + +#ifdef __cplusplus + extern "C" { +#endif + +//--------------------------------------------------------------------+ +// Class Driver Configuration +//--------------------------------------------------------------------+ + +#if !defined(CFG_TUD_MSC_EP_BUFSIZE) & defined(CFG_TUD_MSC_BUFSIZE) + // TODO warn user to use new name later on + // #warning CFG_TUD_MSC_BUFSIZE is renamed to CFG_TUD_MSC_EP_BUFSIZE, please update to use the new name + #define CFG_TUD_MSC_EP_BUFSIZE CFG_TUD_MSC_BUFSIZE +#endif + +#ifndef CFG_TUD_MSC_EP_BUFSIZE + #error CFG_TUD_MSC_EP_BUFSIZE must be defined, value of a block size should work well, the more the better +#endif + +TU_VERIFY_STATIC(CFG_TUD_MSC_EP_BUFSIZE < UINT16_MAX, "Size is not correct"); + +//--------------------------------------------------------------------+ +// Application API +//--------------------------------------------------------------------+ + +// Set SCSI sense response +bool tud_msc_set_sense(uint8_t lun, uint8_t sense_key, uint8_t add_sense_code, uint8_t add_sense_qualifier); + +//--------------------------------------------------------------------+ +// Application Callbacks (WEAK is optional) +//--------------------------------------------------------------------+ + +// Invoked when received SCSI READ10 command +// - Address = lba * BLOCK_SIZE + offset +// - offset is only needed if CFG_TUD_MSC_EP_BUFSIZE is smaller than BLOCK_SIZE. +// +// - Application fill the buffer (up to bufsize) with address contents and return number of read byte. If +// - read < bufsize : These bytes are transferred first and callback invoked again for remaining data. +// +// - read == 0 : Indicate application is not ready yet e.g disk I/O busy. +// Callback invoked again with the same parameters later on. +// +// - read < 0 : Indicate application error e.g invalid address. This request will be STALLed +// and return failed status in command status wrapper phase. +int32_t tud_msc_read10_cb (uint8_t lun, uint32_t lba, uint32_t offset, void* buffer, uint32_t bufsize); + +// Invoked when received SCSI WRITE10 command +// - Address = lba * BLOCK_SIZE + offset +// - offset is only needed if CFG_TUD_MSC_EP_BUFSIZE is smaller than BLOCK_SIZE. +// +// - Application write data from buffer to address contents (up to bufsize) and return number of written byte. If +// - write < bufsize : callback invoked again with remaining data later on. +// +// - write == 0 : Indicate application is not ready yet e.g disk I/O busy. +// Callback invoked again with the same parameters later on. +// +// - write < 0 : Indicate application error e.g invalid address. This request will be STALLed +// and return failed status in command status wrapper phase. +// +// TODO change buffer to const uint8_t* +int32_t tud_msc_write10_cb (uint8_t lun, uint32_t lba, uint32_t offset, uint8_t* buffer, uint32_t bufsize); + +// Invoked when received SCSI_CMD_INQUIRY +// Application fill vendor id, product id and revision with string up to 8, 16, 4 characters respectively +void tud_msc_inquiry_cb(uint8_t lun, uint8_t vendor_id[8], uint8_t product_id[16], uint8_t product_rev[4]); + +// Invoked when received Test Unit Ready command. +// return true allowing host to read/write this LUN e.g SD card inserted +bool tud_msc_test_unit_ready_cb(uint8_t lun); + +// Invoked when received SCSI_CMD_READ_CAPACITY_10 and SCSI_CMD_READ_FORMAT_CAPACITY to determine the disk size +// Application update block count and block size +void tud_msc_capacity_cb(uint8_t lun, uint32_t* block_count, uint16_t* block_size); + +/** + * Invoked when received an SCSI command not in built-in list below. + * - READ_CAPACITY10, READ_FORMAT_CAPACITY, INQUIRY, TEST_UNIT_READY, START_STOP_UNIT, MODE_SENSE6, REQUEST_SENSE + * - READ10 and WRITE10 has their own callbacks + * + * \param[in] lun Logical unit number + * \param[in] scsi_cmd SCSI command contents which application must examine to response accordingly + * \param[out] buffer Buffer for SCSI Data Stage. + * - For INPUT: application must fill this with response. + * - For OUTPUT it holds the Data from host + * \param[in] bufsize Buffer's length. + * + * \return Actual bytes processed, can be zero for no-data command. + * \retval negative Indicate error e.g unsupported command, tinyusb will \b STALL the corresponding + * endpoint and return failed status in command status wrapper phase. + */ +int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer, uint16_t bufsize); + +/*------------- Optional callbacks -------------*/ + +// Invoked when received GET_MAX_LUN request, required for multiple LUNs implementation +TU_ATTR_WEAK uint8_t tud_msc_get_maxlun_cb(void); + +// Invoked when received Start Stop Unit command +// - Start = 0 : stopped power mode, if load_eject = 1 : unload disk storage +// - Start = 1 : active mode, if load_eject = 1 : load disk storage +TU_ATTR_WEAK bool tud_msc_start_stop_cb(uint8_t lun, uint8_t power_condition, bool start, bool load_eject); + +// Invoked when Read10 command is complete +TU_ATTR_WEAK void tud_msc_read10_complete_cb(uint8_t lun); + +// Invoke when Write10 command is complete, can be used to flush flash caching +TU_ATTR_WEAK void tud_msc_write10_complete_cb(uint8_t lun); + +// Invoked when command in tud_msc_scsi_cb is complete +TU_ATTR_WEAK void tud_msc_scsi_complete_cb(uint8_t lun, uint8_t const scsi_cmd[16]); + +// Hook to make a mass storage device read-only. TODO remove +TU_ATTR_WEAK bool tud_msc_is_writable_cb(uint8_t lun); + +//--------------------------------------------------------------------+ +// Internal Class Driver API +//--------------------------------------------------------------------+ +void mscd_init (void); +void mscd_reset (uint8_t rhport); +uint16_t mscd_open (uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint16_t max_len); +bool mscd_control_xfer_cb (uint8_t rhport, uint8_t stage, tusb_control_request_t const * p_request); +bool mscd_xfer_cb (uint8_t rhport, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes); + +#ifdef __cplusplus + } +#endif + +#endif /* _TUSB_MSC_DEVICE_H_ */ |