220 lines
12 KiB
C
220 lines
12 KiB
C
/**************************************************************************/
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/*!
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@file msc_host.h
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@author hathach (tinyusb.org)
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@section LICENSE
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Software License Agreement (BSD License)
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Copyright (c) 2013, hathach (tinyusb.org)
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holders nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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This file is part of the tinyusb stack.
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*/
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/**************************************************************************/
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#ifndef _TUSB_MSC_HOST_H_
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#define _TUSB_MSC_HOST_H_
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#include "common/tusb_common.h"
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#include "host/usbh.h"
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#include "msc.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** \addtogroup ClassDriver_MSC
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* @{
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* \defgroup MSC_Host Host
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* The interface API includes status checking function, data transferring function and callback functions
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* @{ */
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//--------------------------------------------------------------------+
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// MASS STORAGE Application API
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//--------------------------------------------------------------------+
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/** \brief Check if device supports MassStorage interface or not
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* \param[in] dev_addr device address
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* \retval true if device supports
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* \retval false if device does not support or is not mounted
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*/
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bool tuh_msc_is_mounted(uint8_t dev_addr) ATTR_PURE ATTR_WARN_UNUSED_RESULT;
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/** \brief Check if the interface is currently busy or not
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* \param[in] dev_addr device address
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* \retval true if the interface is busy meaning the stack is still transferring/waiting data from/to device
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* \retval false if the interface is not busy meaning the stack successfully transferred data from/to device
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* \note This function is used to check if previous transfer is complete (success or error), so that the next transfer
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* can be scheduled. User needs to make sure the corresponding interface is mounted (by \ref tuh_msc_is_mounted)
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* before calling this function
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*/
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bool tuh_msc_is_busy(uint8_t dev_addr) ATTR_PURE ATTR_WARN_UNUSED_RESULT;
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/** \brief Get SCSI vendor's name of MassStorage device
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* \param[in] dev_addr device address
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* \return pointer to vendor's name or NULL if specified device does not support MassStorage
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* \note SCSI vendor's name is 8-byte length field in \ref scsi_inquiry_data_t. During enumeration, the stack has already
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* retrieved (via SCSI INQUIRY) and store this information internally. There is no need for application to re-send SCSI INQUIRY
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* command or allocate buffer for this.
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*/
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uint8_t const* tuh_msc_get_vendor_name(uint8_t dev_addr);
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/** \brief Get SCSI product's name of MassStorage device
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* \param[in] dev_addr device address
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* \return pointer to product's name or NULL if specified device does not support MassStorage
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* \note SCSI product's name is 16-byte length field in \ref scsi_inquiry_data_t. During enumeration, the stack has already
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* retrieved (via SCSI INQUIRY) and store this information internally. There is no need for application to re-send SCSI INQUIRY
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* command or allocate buffer for this.
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*/
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uint8_t const* tuh_msc_get_product_name(uint8_t dev_addr);
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/** \brief Get SCSI Capacity of MassStorage device
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* \param[in] dev_addr device address
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* \param[out] p_last_lba Last Logical Block Address of device
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* \param[out] p_block_size Block Size of device in bytes
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* \retval pointer to product's name or NULL if specified device does not support MassStorage
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* \note MassStorage's capacity can be computed by last LBA x block size (in bytes). During enumeration, the stack has already
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* retrieved (via SCSI READ CAPACITY 10) and store this information internally. There is no need for application
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* to re-send SCSI READ CAPACITY 10 command
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*/
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tusb_error_t tuh_msc_get_capacity(uint8_t dev_addr, uint32_t* p_last_lba, uint32_t* p_block_size);
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/** \brief Perform SCSI READ 10 command to read data from MassStorage device
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* \param[in] dev_addr device address
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* \param[in] lun Targeted Logical Unit
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* \param[out] p_buffer Buffer used to store data read from device. Must be accessible by USB controller (see \ref TUSB_CFG_ATTR_USBRAM)
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* \param[in] lba Starting Logical Block Address to be read
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* \param[in] block_count Number of Block to be read
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* \retval TUSB_ERROR_NONE on success
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* \retval TUSB_ERROR_INTERFACE_IS_BUSY if the interface is already transferring data with device
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* \retval TUSB_ERROR_DEVICE_NOT_READY if device is not yet configured (by SET CONFIGURED request)
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* \retval TUSB_ERROR_INVALID_PARA if input parameters are not correct
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* \note This function is non-blocking and returns immediately. The result of USB transfer will be reported by the interface's callback function
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*/
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tusb_error_t tuh_msc_read10 (uint8_t dev_addr, uint8_t lun, void * p_buffer, uint32_t lba, uint16_t block_count) ATTR_WARN_UNUSED_RESULT;
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/** \brief Perform SCSI WRITE 10 command to write data to MassStorage device
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* \param[in] dev_addr device address
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* \param[in] lun Targeted Logical Unit
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* \param[in] p_buffer Buffer containing data. Must be accessible by USB controller (see \ref TUSB_CFG_ATTR_USBRAM)
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* \param[in] lba Starting Logical Block Address to be written
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* \param[in] block_count Number of Block to be written
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* \retval TUSB_ERROR_NONE on success
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* \retval TUSB_ERROR_INTERFACE_IS_BUSY if the interface is already transferring data with device
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* \retval TUSB_ERROR_DEVICE_NOT_READY if device is not yet configured (by SET CONFIGURED request)
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* \retval TUSB_ERROR_INVALID_PARA if input parameters are not correct
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* \note This function is non-blocking and returns immediately. The result of USB transfer will be reported by the interface's callback function
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*/
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tusb_error_t tuh_msc_write10(uint8_t dev_addr, uint8_t lun, void const * p_buffer, uint32_t lba, uint16_t block_count) ATTR_WARN_UNUSED_RESULT;
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/** \brief Perform SCSI REQUEST SENSE command, used to retrieve sense data from MassStorage device
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* \param[in] dev_addr device address
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* \param[in] lun Targeted Logical Unit
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* \param[in] p_data Buffer to store response's data from device. Must be accessible by USB controller (see \ref TUSB_CFG_ATTR_USBRAM)
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* \retval TUSB_ERROR_NONE on success
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* \retval TUSB_ERROR_INTERFACE_IS_BUSY if the interface is already transferring data with device
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* \retval TUSB_ERROR_DEVICE_NOT_READY if device is not yet configured (by SET CONFIGURED request)
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* \retval TUSB_ERROR_INVALID_PARA if input parameters are not correct
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* \note This function is non-blocking and returns immediately. The result of USB transfer will be reported by the interface's callback function
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*/
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tusb_error_t tuh_msc_request_sense(uint8_t dev_addr, uint8_t lun, uint8_t *p_data);
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/** \brief Perform SCSI TEST UNIT READY command to test if MassStorage device is ready
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* \param[in] dev_addr device address
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* \param[in] lun Targeted Logical Unit
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* \retval TUSB_ERROR_NONE on success
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* \retval TUSB_ERROR_INTERFACE_IS_BUSY if the interface is already transferring data with device
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* \retval TUSB_ERROR_DEVICE_NOT_READY if device is not yet configured (by SET CONFIGURED request)
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* \retval TUSB_ERROR_INVALID_PARA if input parameters are not correct
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* \note This function is non-blocking and returns immediately. The result of USB transfer will be reported by the interface's callback function
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*/
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tusb_error_t tuh_msc_test_unit_ready(uint8_t dev_addr, uint8_t lun, msc_csw_t * p_csw) ATTR_WARN_UNUSED_RESULT; // TODO to be refractor
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//tusb_error_t tusbh_msc_scsi_send(uint8_t dev_addr, uint8_t lun, bool is_direction_in,
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// uint8_t const * p_command, uint8_t cmd_len,
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// uint8_t * p_response, uint32_t resp_len) ATTR_WARN_UNUSED_RESULT;
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//------------- Application Callback -------------//
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/** \brief Callback function that will be invoked when a device with MassStorage interface is mounted
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* \param[in] dev_addr Address of newly mounted device
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* \note This callback should be used by Application to set-up interface-related data
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*/
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void tuh_msc_mounted_cb(uint8_t dev_addr);
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/** \brief Callback function that will be invoked when a device with MassStorage interface is unmounted
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* \param[in] dev_addr Address of newly unmounted device
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* \note This callback should be used by Application to tear-down interface-related data
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*/
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void tuh_msc_unmounted_cb(uint8_t dev_addr);
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/** \brief Callback function that is invoked when an transferring event occurred
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* \param[in] dev_addr Address of device
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* \param[in] event an value from \ref tusb_event_t
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* \param[in] xferred_bytes Number of bytes transferred via USB bus
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* \note event can be one of following
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* - TUSB_EVENT_XFER_COMPLETE : previously scheduled transfer completes successfully.
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* - TUSB_EVENT_XFER_ERROR : previously scheduled transfer encountered a transaction error.
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* - TUSB_EVENT_XFER_STALLED : previously scheduled transfer is stalled by device.
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* \note
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*/
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void tuh_msc_isr(uint8_t dev_addr, tusb_event_t event, uint32_t xferred_bytes);
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//--------------------------------------------------------------------+
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// USBH-CLASS DRIVER API
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//--------------------------------------------------------------------+
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#ifdef _TINY_USB_SOURCE_FILE_
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typedef struct {
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pipe_handle_t bulk_in, bulk_out;
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uint8_t interface_number;
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uint8_t max_lun;
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uint16_t block_size;
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uint32_t last_lba; // last logical block address
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volatile bool is_initialized;
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uint8_t vendor_id[8];
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uint8_t product_id[16];
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msc_cbw_t cbw;
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msc_csw_t csw;
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}msch_interface_t;
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void msch_init(void);
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tusb_error_t msch_open_subtask(uint8_t dev_addr, tusb_descriptor_interface_t const *p_interface_desc, uint16_t *p_length) ATTR_WARN_UNUSED_RESULT;
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void msch_isr(pipe_handle_t pipe_hdl, tusb_event_t event, uint32_t xferred_bytes);
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void msch_close(uint8_t dev_addr);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _TUSB_MSC_HOST_H_ */
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/// @}
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/// @}
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