431 lines
16 KiB
C
431 lines
16 KiB
C
/**************************************************************************/
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/*!
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@file msc_host.c
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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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#include "tusb_option.h"
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#if MODE_HOST_SUPPORTED & CFG_TUH_MSC
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#define _TINY_USB_SOURCE_FILE_
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//--------------------------------------------------------------------+
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// INCLUDE
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//--------------------------------------------------------------------+
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#include "common/tusb_common.h"
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#include "msc_host.h"
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//--------------------------------------------------------------------+
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// MACRO CONSTANT TYPEDEF
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//--------------------------------------------------------------------+
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CFG_TUSB_MEM_SECTION STATIC_VAR msch_interface_t msch_data[CFG_TUSB_HOST_DEVICE_MAX];
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//------------- Initalization Data -------------//
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static osal_semaphore_t msch_sem_hdl;
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// buffer used to read scsi information when mounted, largest response data currently is inquiry
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CFG_TUSB_MEM_SECTION ATTR_ALIGNED(4) STATIC_VAR uint8_t msch_buffer[sizeof(scsi_inquiry_data_t)];
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//--------------------------------------------------------------------+
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// INTERNAL OBJECT & FUNCTION DECLARATION
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//--------------------------------------------------------------------+
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//--------------------------------------------------------------------+
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// PUBLIC API
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//--------------------------------------------------------------------+
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bool tuh_msc_is_mounted(uint8_t dev_addr)
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{
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return tuh_device_is_configured(dev_addr) && // is configured can be omitted
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msch_data[dev_addr-1].is_initialized;
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}
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bool tuh_msc_is_busy(uint8_t dev_addr)
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{
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return msch_data[dev_addr-1].is_initialized &&
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hcd_pipe_is_busy(msch_data[dev_addr-1].bulk_in);
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}
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uint8_t const* tuh_msc_get_vendor_name(uint8_t dev_addr)
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{
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return msch_data[dev_addr-1].is_initialized ? msch_data[dev_addr-1].vendor_id : NULL;
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}
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uint8_t const* tuh_msc_get_product_name(uint8_t dev_addr)
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{
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return msch_data[dev_addr-1].is_initialized ? msch_data[dev_addr-1].product_id : NULL;
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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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{
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if ( !msch_data[dev_addr-1].is_initialized ) return TUSB_ERROR_MSCH_DEVICE_NOT_MOUNTED;
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TU_ASSERT(p_last_lba != NULL && p_block_size != NULL, TUSB_ERROR_INVALID_PARA);
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(*p_last_lba) = msch_data[dev_addr-1].last_lba;
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(*p_block_size) = (uint32_t) msch_data[dev_addr-1].block_size;
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return TUSB_ERROR_NONE;
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}
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//--------------------------------------------------------------------+
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// PUBLIC API: SCSI COMMAND
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//--------------------------------------------------------------------+
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static inline void msc_cbw_add_signature(msc_cbw_t *p_cbw, uint8_t lun)
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{
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p_cbw->signature = MSC_CBW_SIGNATURE;
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p_cbw->tag = 0xCAFECAFE;
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p_cbw->lun = lun;
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}
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static tusb_error_t msch_command_xfer(msch_interface_t * p_msch, void* p_buffer) ATTR_WARN_UNUSED_RESULT;
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static tusb_error_t msch_command_xfer(msch_interface_t * p_msch, void* p_buffer)
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{
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if ( NULL != p_buffer)
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{ // there is data phase
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if (p_msch->cbw.dir & TUSB_DIR_IN_MASK)
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{
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TU_ASSERT_ERR( hcd_pipe_xfer(p_msch->bulk_out, (uint8_t*) &p_msch->cbw, sizeof(msc_cbw_t), false) );
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TU_ASSERT_ERR( hcd_pipe_queue_xfer(p_msch->bulk_in , p_buffer, p_msch->cbw.xfer_bytes) );
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}else
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{
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TU_ASSERT_ERR( hcd_pipe_queue_xfer(p_msch->bulk_out, (uint8_t*) &p_msch->cbw, sizeof(msc_cbw_t)) );
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TU_ASSERT_ERR( hcd_pipe_xfer(p_msch->bulk_out , p_buffer, p_msch->cbw.xfer_bytes, false) );
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}
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}
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TU_ASSERT_ERR( hcd_pipe_xfer(p_msch->bulk_in , (uint8_t*) &p_msch->csw, sizeof(msc_csw_t), true) );
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return TUSB_ERROR_NONE;
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}
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tusb_error_t tusbh_msc_inquiry(uint8_t dev_addr, uint8_t lun, uint8_t *p_data)
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{
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msch_interface_t* p_msch = &msch_data[dev_addr-1];
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//------------- Command Block Wrapper -------------//
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msc_cbw_add_signature(&p_msch->cbw, lun);
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p_msch->cbw.xfer_bytes = sizeof(scsi_inquiry_data_t);
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p_msch->cbw.dir = TUSB_DIR_IN_MASK;
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p_msch->cbw.cmd_len = sizeof(scsi_inquiry_t);
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//------------- SCSI command -------------//
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scsi_inquiry_t cmd_inquiry =
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{
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.cmd_code = SCSI_CMD_INQUIRY,
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.alloc_length = sizeof(scsi_inquiry_data_t)
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};
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memcpy(p_msch->cbw.command, &cmd_inquiry, p_msch->cbw.cmd_len);
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TU_ASSERT_ERR ( msch_command_xfer(p_msch, p_data) );
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return TUSB_ERROR_NONE;
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}
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tusb_error_t tusbh_msc_read_capacity10(uint8_t dev_addr, uint8_t lun, uint8_t *p_data)
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{
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msch_interface_t* p_msch = &msch_data[dev_addr-1];
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//------------- Command Block Wrapper -------------//
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msc_cbw_add_signature(&p_msch->cbw, lun);
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p_msch->cbw.xfer_bytes = sizeof(scsi_read_capacity10_data_t);
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p_msch->cbw.dir = TUSB_DIR_IN_MASK;
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p_msch->cbw.cmd_len = sizeof(scsi_read_capacity10_t);
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//------------- SCSI command -------------//
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scsi_read_capacity10_t cmd_read_capacity10 =
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{
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.cmd_code = SCSI_CMD_READ_CAPACITY_10,
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.lba = 0,
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.partial_medium_indicator = 0
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};
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memcpy(p_msch->cbw.command, &cmd_read_capacity10, p_msch->cbw.cmd_len);
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TU_ASSERT_ERR ( msch_command_xfer(p_msch, p_data) );
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return TUSB_ERROR_NONE;
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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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{
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(void) lun; // TODO [MSCH] multiple lun support
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msch_interface_t* p_msch = &msch_data[dev_addr-1];
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//------------- Command Block Wrapper -------------//
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p_msch->cbw.xfer_bytes = 18;
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p_msch->cbw.dir = TUSB_DIR_IN_MASK;
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p_msch->cbw.cmd_len = sizeof(scsi_request_sense_t);
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//------------- SCSI command -------------//
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scsi_request_sense_t cmd_request_sense =
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{
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.cmd_code = SCSI_CMD_REQUEST_SENSE,
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.alloc_length = 18
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};
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memcpy(p_msch->cbw.command, &cmd_request_sense, p_msch->cbw.cmd_len);
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TU_ASSERT_ERR ( msch_command_xfer(p_msch, p_data) );
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return TUSB_ERROR_NONE;
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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)
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{
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msch_interface_t* p_msch = &msch_data[dev_addr-1];
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//------------- Command Block Wrapper -------------//
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msc_cbw_add_signature(&p_msch->cbw, lun);
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p_msch->cbw.xfer_bytes = 0; // Number of bytes
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p_msch->cbw.dir = TUSB_DIR_OUT;
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p_msch->cbw.cmd_len = sizeof(scsi_test_unit_ready_t);
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//------------- SCSI command -------------//
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scsi_test_unit_ready_t cmd_test_unit_ready =
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{
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.cmd_code = SCSI_CMD_TEST_UNIT_READY,
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.lun = lun // according to wiki
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};
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memcpy(p_msch->cbw.command, &cmd_test_unit_ready, p_msch->cbw.cmd_len);
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// TODO MSCH refractor test uinit ready
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TU_ASSERT_ERR( hcd_pipe_xfer(p_msch->bulk_out, (uint8_t*) &p_msch->cbw, sizeof(msc_cbw_t), false) );
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TU_ASSERT_ERR( hcd_pipe_xfer(p_msch->bulk_in , (uint8_t*) p_csw, sizeof(msc_csw_t), true) );
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return TUSB_ERROR_NONE;
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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)
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{
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msch_interface_t* p_msch = &msch_data[dev_addr-1];
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//------------- Command Block Wrapper -------------//
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msc_cbw_add_signature(&p_msch->cbw, lun);
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p_msch->cbw.xfer_bytes = p_msch->block_size*block_count; // Number of bytes
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p_msch->cbw.dir = TUSB_DIR_IN_MASK;
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p_msch->cbw.cmd_len = sizeof(scsi_read10_t);
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//------------- SCSI command -------------//
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scsi_read10_t cmd_read10 =
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{
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.cmd_code = SCSI_CMD_READ_10,
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.lba = __n2be(lba),
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.block_count = u16_le2be(block_count)
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};
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memcpy(p_msch->cbw.command, &cmd_read10, p_msch->cbw.cmd_len);
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TU_ASSERT_ERR ( msch_command_xfer(p_msch, p_buffer));
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return TUSB_ERROR_NONE;
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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)
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{
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msch_interface_t* p_msch = &msch_data[dev_addr-1];
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//------------- Command Block Wrapper -------------//
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msc_cbw_add_signature(&p_msch->cbw, lun);
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p_msch->cbw.xfer_bytes = p_msch->block_size*block_count; // Number of bytes
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p_msch->cbw.dir = TUSB_DIR_OUT;
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p_msch->cbw.cmd_len = sizeof(scsi_write10_t);
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//------------- SCSI command -------------//
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scsi_write10_t cmd_write10 =
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{
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.cmd_code = SCSI_CMD_WRITE_10,
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.lba = __n2be(lba),
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.block_count = u16_le2be(block_count)
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};
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memcpy(p_msch->cbw.command, &cmd_write10, p_msch->cbw.cmd_len);
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TU_ASSERT_ERR ( msch_command_xfer(p_msch, (void*) p_buffer));
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return TUSB_ERROR_NONE;
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}
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//--------------------------------------------------------------------+
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// CLASS-USBH API (don't require to verify parameters)
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//--------------------------------------------------------------------+
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void msch_init(void)
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{
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tu_memclr(msch_data, sizeof(msch_interface_t)*CFG_TUSB_HOST_DEVICE_MAX);
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msch_sem_hdl = osal_semaphore_create(1, 0);
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}
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tusb_error_t msch_open_subtask(uint8_t dev_addr, tusb_desc_interface_t const *p_interface_desc, uint16_t *p_length)
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{
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tusb_error_t error;
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OSAL_SUBTASK_BEGIN
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if (! ( MSC_SUBCLASS_SCSI == p_interface_desc->bInterfaceSubClass &&
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MSC_PROTOCOL_BOT == p_interface_desc->bInterfaceProtocol ) )
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{
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return TUSB_ERROR_MSC_UNSUPPORTED_PROTOCOL;
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}
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//------------- Open Data Pipe -------------//
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tusb_desc_endpoint_t const *p_endpoint;
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p_endpoint = (tusb_desc_endpoint_t const *) descriptor_next( (uint8_t const*) p_interface_desc );
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for(uint32_t i=0; i<2; i++)
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{
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STASK_ASSERT(TUSB_DESC_ENDPOINT == p_endpoint->bDescriptorType);
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STASK_ASSERT(TUSB_XFER_BULK == p_endpoint->bmAttributes.xfer);
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pipe_handle_t * p_pipe_hdl = ( p_endpoint->bEndpointAddress & TUSB_DIR_IN_MASK ) ?
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&msch_data[dev_addr-1].bulk_in : &msch_data[dev_addr-1].bulk_out;
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(*p_pipe_hdl) = hcd_pipe_open(dev_addr, p_endpoint, TUSB_CLASS_MSC);
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STASK_ASSERT( pipehandle_is_valid(*p_pipe_hdl) );
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p_endpoint = (tusb_desc_endpoint_t const *) descriptor_next( (uint8_t const*) p_endpoint );
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}
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msch_data[dev_addr-1].interface_number = p_interface_desc->bInterfaceNumber;
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(*p_length) += sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t);
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//------------- Get Max Lun -------------//
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STASK_INVOKE(
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usbh_control_xfer_subtask( dev_addr, bm_request_type(TUSB_DIR_IN, TUSB_REQ_TYPE_CLASS, TUSB_REQ_RCPT_INTERFACE),
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MSC_REQ_GET_MAX_LUN, 0, msch_data[dev_addr-1].interface_number,
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1, msch_buffer ),
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error
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);
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STASK_ASSERT( TUSB_ERROR_NONE == error /* && TODO STALL means zero */);
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msch_data[dev_addr-1].max_lun = msch_buffer[0];
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#if 0
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//------------- Reset -------------//
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STASK_INVOKE(
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usbh_control_xfer_subtask( dev_addr, bm_request_type(TUSB_DIR_OUT, TUSB_REQ_TYPE_CLASS, TUSB_REQ_RCPT_INTERFACE),
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MSC_REQ_RESET, 0, msch_data[dev_addr-1].interface_number,
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0, NULL ),
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error
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);
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#endif
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enum { SCSI_XFER_TIMEOUT = 2000 };
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//------------- SCSI Inquiry -------------//
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tusbh_msc_inquiry(dev_addr, 0, msch_buffer);
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osal_semaphore_wait(msch_sem_hdl, SCSI_XFER_TIMEOUT, &error);
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STASK_ASSERT_ERR(error);
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memcpy(msch_data[dev_addr-1].vendor_id , ((scsi_inquiry_data_t*) msch_buffer)->vendor_id , 8);
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memcpy(msch_data[dev_addr-1].product_id, ((scsi_inquiry_data_t*) msch_buffer)->product_id, 16);
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//------------- SCSI Read Capacity 10 -------------//
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tusbh_msc_read_capacity10(dev_addr, 0, msch_buffer);
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osal_semaphore_wait(msch_sem_hdl, SCSI_XFER_TIMEOUT, &error);
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STASK_ASSERT_ERR(error);
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// NOTE: my toshiba thumb-drive stall the first Read Capacity and require the sequence
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// Read Capacity --> Stalled --> Clear Stall --> Request Sense --> Read Capacity (2) to work
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if ( hcd_pipe_is_stalled(msch_data[dev_addr-1].bulk_in) )
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{ // clear stall TODO abstract clear stall function
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STASK_INVOKE(
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usbh_control_xfer_subtask( dev_addr, bm_request_type(TUSB_DIR_OUT, TUSB_REQ_TYPE_STANDARD, TUSB_REQ_RCPT_ENDPOINT),
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TUSB_REQ_CLEAR_FEATURE, 0, hcd_pipe_get_endpoint_addr(msch_data[dev_addr-1].bulk_in),
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0, NULL ),
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error
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);
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STASK_ASSERT_ERR(error);
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hcd_pipe_clear_stall(msch_data[dev_addr-1].bulk_in);
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osal_semaphore_wait(msch_sem_hdl, SCSI_XFER_TIMEOUT, &error); // wait for SCSI status
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STASK_ASSERT_ERR(error);
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//------------- SCSI Request Sense -------------//
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(void) tuh_msc_request_sense(dev_addr, 0, msch_buffer);
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osal_semaphore_wait(msch_sem_hdl, SCSI_XFER_TIMEOUT, &error);
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STASK_ASSERT_ERR(error);
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//------------- Re-read SCSI Read Capactity -------------//
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tusbh_msc_read_capacity10(dev_addr, 0, msch_buffer);
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osal_semaphore_wait(msch_sem_hdl, SCSI_XFER_TIMEOUT, &error);
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STASK_ASSERT_ERR(error);
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}
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msch_data[dev_addr-1].last_lba = __be2n( ((scsi_read_capacity10_data_t*)msch_buffer)->last_lba );
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msch_data[dev_addr-1].block_size = (uint16_t) __be2n( ((scsi_read_capacity10_data_t*)msch_buffer)->block_size );
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msch_data[dev_addr-1].is_initialized = true;
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tuh_msc_mounted_cb(dev_addr);
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OSAL_SUBTASK_END
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}
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void msch_isr(pipe_handle_t pipe_hdl, xfer_result_t event, uint32_t xferred_bytes)
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{
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if ( pipehandle_is_equal(pipe_hdl, msch_data[pipe_hdl.dev_addr-1].bulk_in) )
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{
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if (msch_data[pipe_hdl.dev_addr-1].is_initialized)
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{
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tuh_msc_isr(pipe_hdl.dev_addr, event, xferred_bytes);
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}else
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{ // still initializing under open subtask
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osal_semaphore_post(msch_sem_hdl);
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}
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}
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}
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void msch_close(uint8_t dev_addr)
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{
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(void) hcd_pipe_close(msch_data[dev_addr-1].bulk_in);
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(void) hcd_pipe_close(msch_data[dev_addr-1].bulk_out);
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tu_memclr(&msch_data[dev_addr-1], sizeof(msch_interface_t));
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osal_semaphore_reset(msch_sem_hdl);
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tuh_msc_unmounted_cb(dev_addr); // invoke Application Callback
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}
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//--------------------------------------------------------------------+
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// INTERNAL & HELPER
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//--------------------------------------------------------------------+
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#endif
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